WO2005109684A1 - Wireless communication system, mobile station, base station control apparatus, and wireless communication method - Google Patents

Abstract

The wireless communication system comprises a base station control apparatus, a base station connected thereto, and a mobile station using first and second physical channels to communicate with the base station. The mobile station comprises a control part for controlling a first transmission using the first physical channel and a second transmission using the second physical channel; and a transmitting part connected to the control part. The base station control apparatus notifies a plurality of first TFCs (Transport Format Combinations) used in the first transmission, as a first TFCS (Transport Format Combination Set) to the mobile station. The base station control apparatus also notifies a plurality of second TFCs used in the second transmission, as a second TFCS to the mobile station. The control part decides a first assigned power to be assigned to the first transmission and also decides a second assigned power to be assigned to the second transmission. In addition, the control part selects, from the first TFCS, one first TFC usable with the first assigned power, and also selects, from the second TFCS, one second TFC usable with the second assigned power. The transmitting part uses the selected first TFC to execute the first transmission for the base station, while it uses the selected second TFC to execute the second transmission for the base station.

Description

 Specification

 Radio communication system, mobile station, base station control device, and radio communication method

 The present invention relates to a wireless communication system and a wireless communication method, and in particular, to a CDMA (Code

The present invention relates to a wireless communication system and a wireless communication method using a Division Multiple Access (Division Multiple Access) method.

 Background art

 [0002] According to a direct code spread multiplexing method used in a WCDMA (Wideband CDMA) system, a transmitter performs spreading processing of an information signal using a spreading code, and a receiver performs the same spreading on a received signal. A despreading process is performed using the code. This direct code spreading multiplexing method improves the signal to noise interference ratio (SNIR). The receiving side can restore a desired information signal if the SNIR is equal to or higher than a predetermined quality. Also, multiple lines can be used simultaneously in the same frequency band by the spread Z despreading process.

 [0003] In WCDMA, the "spreading code rate" with respect to the "transmission data symbol rate" is called a "spreading factor (SF)". In general, the lower the spreading factor, the greater the number of bits of information that can be transmitted per unit time, and the higher the transmission speed (bit rate). However, since the SNIR decreases in the despreading process, the transmission power required to satisfy the predetermined quality increases. It is preferable that the transmission power is suppressed as much as possible from the viewpoint that a transmission signal on a certain line interferes with a signal on another line. In other words, it is desired to set a transmission speed that can satisfy the required transmission speed of each line and suppress transmission power as much as possible. This is important for improving the line capacity in WCDMA systems.

[0004] Hereinafter, 3GPP specifications (Non-Patent Document 1: 3GPP TS25.321 v5.7.0, "3rd veneration Partnership Project; Technical specification roup Radio Access Network; Medium Access Control (MAC) protocol specification (Release 5) ", (200 3-12); Non-Patent Document 2: 3GPP TR25.896 v2.0.0" 3rd Generation Partnership Project; Technical Specification Group Radio Access Network;

 By referring to the Feasibility Study for Enhanced Uplink for UTRA FDD (Release 6) ", (2004-03)), general technical terms and concepts in a WCDMA system used in this specification are explained. A "transport channel" is defined for Layer 1 to provide services to Layer 2. The transport channel includes a common channel and a “dedicated channel (DCH)”. Layer 1 provides the signal transmission required by Layer 2 using a channel appropriate for its use. “Physical Channel” is defined as a transmission channel between layer 1 wireless nodes (mobile station and base station) in order to realize transmission over this transport channel using an actual wireless transmission path. . A mobile station can transmit data of multiple transport channels on a single physical channel.

 [0005] Further, a transmission format called a transport format (TF) is set for each transport channel. This transport format specifies a transport block size, a CRC bit size, an encoding method, a transmission interval (TTI: Transmission Time Interval), and the like. A plurality of transport formats are set for each of a plurality of transport channels corresponding to one physical channel. The combination of these transport formats for one physical channel is called "TFC (Transport Format Combination)". In a WCDMA system, one mobile station can select a TFC to be used for transmission (hereinafter, referred to as “selected TFC”) from a plurality of TFCs. These multiple TFCs are called “TFCS (Transport Format Combination Set)” and are permitted and specified for each physical channel of each mobile station by the base station controller. In this way, one mobile station selects one selected TFC from the TFCS (multiple TFCs) indicated by the base station controller.

[0006] In a WCDMA system, a mobile station estimates transmission power (required power) required when each of a plurality of TFCs is used, and based on the estimated required power, Each of the multiple TFCs is classified into one of the following three states. FIG. 1 is a conceptual diagram for explaining three states in which a TFC is classified and state transitions of the TFC. The three states are the first state (Supported State), the second state (Excess-Power State), And a third state (Blocked State). The higher the number in the state, the higher the estimated power requirement. Specifically, the mobile station estimates the required power required when each of a plurality of TFCs is used, based on the TFC in use and the transmission power at that time. If the required power estimated for the TFC belonging to the first state is equal to or greater than the maximum transmission power of the mobile station for the period S1 or more in the past predetermined period T, the TFC is in the second state (Excess- Power State). TFC force belonging to the second state If the second state remains in the second state for a period S2 or more in the past predetermined period T, the TFC is moved to the third state (Blocked State). TFCs belonging to the third state are set to one of the states based on whether or not the above conditions are met. For example, if the required power estimated for the TFC belonging to the third state is less than or equal to the maximum transmission power of the mobile station for more than the period S3 in the past predetermined period T, the TFC becomes the first state ( Supported State).

 [0007] As described above, the mobile station observes the states of a plurality of TFCs and selects a selected TFC from TFCs other than the third state (Blocked State). Specifically, the mobile station determines, as the selected TFC, a TFC that has a higher transmission rate as the transport channel has a higher priority. Using the selected TFC determined in this way, the mobile station transmits data on multiple transport channels. As described above, in the WCDMA system, the mobile station determines a transmission format in uplink packet transmission. The status of each TFC is determined based on long-term propagation path fluctuations. Therefore, even when the propagation path fluctuates instantaneously due to fading fluctuation or the like, a TFC that can satisfy the required quality on a long-term average is selected (see Non-Patent Document 1).

 [0008] In addition, the above-mentioned DCH (

 Dedicated Channel) In addition, an uplink high-speed packet transmission scheme (EDCH: Enhanced uplink DCH) is being studied (see Non-Patent Document 2). For example, call data is transmitted by DCH, and file transfer is performed by EDCH. According to this EDCH, it is being studied that the base station controls the uplink packet transmission method such as the transmission speed. The reason is as follows.

[0009] Generally, in a WCDMA system, a base station determines a ratio between a desired signal and noise power. Measure the “noise rise”. The base station controller controls the number of mobile stations connected and the TFCS so that the noise rise does not exceed a predetermined threshold. However, it takes a certain time to transmit information from the base station to which the noise rise has been measured to the base station controller and from the base station controller to the mobile station. Therefore, it is difficult for the base station controller to control the number of mobile stations and TFCS in response to instantaneous fluctuations in noise rise. Therefore, in the conventional WCDMA system, the number of mobile stations and the TFCS were set so that the average value of the noise rise was sufficiently smaller than a predetermined threshold.

 [0010] Therefore, in selecting a TFC to be used for EDCH, the base station selects a plurality of TFCs that allow medium use of the TFCS based on the measured noise rise, and among the plurality of TFCs, the transmission rate is the highest. It is under consideration to promptly instruct a mobile station of a growing TFC (hereinafter referred to as “maximum TFC”). At this time, the mobile station considers the maximum TFC specified by the base station together with the state of each TFC (see FIG. 1) when determining the above-mentioned selected TFC. That is, the mobile station selects, from the TFCS, a TFC belonging to the first state or the second state and having a transmission rate equal to or lower than the maximum TFC transmission rate. As a result, the fluctuation range of the noise rise is reduced, and the above-described threshold can be set higher. In other words, the number of mobile stations that can be connected increases, and the maximum TFC setting also increases. Therefore, the coverage and capacity of the upstream line are improved.

 [0011] As described above, the mobile station transmits data using DCH and EDCH. At this time, the TFC selection process needs to be performed for both DCH and EDCH. As described above, in this TFC selection process, it is determined whether or not the estimated required power is greater than the maximum transmission power P of the mobile station over the period S of the predetermined period T in the past. This

 MAX

 As a result, the respective states of the plurality of TFCs indicated by the TFCS applied to the DCH and the respective states of the plurality of TFCs indicated by the TFCS applied to the EDCH are determined. Here, for distinction, in this specification, the TFC used for the EDCH is referred to as “ETFC”, and a set of a plurality of ETFCs is referred to as “ETFCS”.

FIG. 2 shows an example of states of a plurality of TFCs and a plurality of ETFCs in a certain mobile station, and an example of a transmission power level when using them. When the transmission rate (bit rate) is high, the power required to satisfy the specified quality increases, and when the transmission rate is low, the required power increases. The power is lower. Thus, in FIG. 2, the Z-axis shows the transmission rate as well as the power. In FIG. 2, ETFCS includes ETFC1 to ETFC6, and TFCS includes TFC1 to TFC8. In the related art, the state of each of the plurality of TFCs and the plurality of ETFCs is determined based on the maximum transmission power P of the mobile station. For example, in FIG.

 MAX

ETFC3 is classified into a first state (Supported State), ETFC4 is classified into a second state (Excess-Power State), and ETFC5 and ETFC6 are classified into a third state (Blocked State). Similarly, TFC1 to TFC5 are classified into a first state, TFC6 is classified into a second state (Excess-Power State), and TFC7 and TFC8 are classified into a third state. At this time, the mobile station selects ETFC4 and TFC6 as the ETFC and TFC used for transmission, respectively.

 [0013] In this case, the transmission power required for transmission using ETFC4 is P-EDCH, and the transmission power required for transmission using TFC6 is P-DCH. Therefore, the required total transmission power P (P = P—EDCH + P—DCH) is equal to the maximum transmission power P of the mobile station.

 ALL ALL MAX

 Significantly larger. In such a case, the total transmit power P

 ALL is the maximum transmission power P

 It is necessary to reduce one or both of P-EDCH and P-DCH so that it is less than MAX. As a result, the power required to meet the required quality is not allocated to at least one channel, and the quality deteriorates.

[0014] The following are known as related technologies.

 [0015] Japanese Patent Laying-Open No. 2002-164871 discloses a decoding device. The decoding device includes a receiving unit, a determining unit, and a decoding unit. The receiving means receives a signal indicating a format of the received data. The determining means limits the format candidates of the received data according to the information notified from the layer higher than the physical layer, and then determines the format of the received data from the candidates using the signal. The decoding means decodes the received data according to the determined format.

[0016] Japanese Patent Laying-Open No. 2002-246949 discloses a CDMA device. This CDMA apparatus includes TFCI output means, SIR output means, weighted addition means, and determination means. The TFCI output means extracts and outputs, for each frame, a TFCI value indicating a combination of transfer formats from a correlation value obtained by despreading the received baseband signal. . The SIR output means generates and outputs an SIR signal indicating the level of the interference wave included in the received baseband signal for each frame based on the correlation value. The weighting and adding means weights the TFCI value by the SIR signal and adds the weighted TFCI value. The deciding means decides format information to be used for decoding the received baseband signal based on the addition result of the weighting and adding means.

[0017] Japanese Patent Laid-Open Publication No. 2003-8635 discloses a method for scheduling a plurality of data flows in a CDMA system, particularly in a mobile communication system. The method has the steps listed below. (A) receiving a quality of service requirement for each data flow including a protocol data unit; (B) determining a priority of a protocol data unit to be provided for data transmission on a communication channel; ( C) providing a protocol data unit by dynamically determining the transport blocks to be transmitted by the physical layer with respect to defined priorities and dependent on the allocated radio resource limits; (D) assigning each transport block a respective associated transport format; and (E) using the assigned respective associated transport format to determine which is to be transmitted by the physical layer. Transport block with transport block Generating a set.

 Japanese Patent Application Laid-Open No. 2003-234720 discloses an information multiplexing method in mobile communication. According to the mobile communication, a transmission time interval that is the shortest data time length that can be decoded is selected from a plurality of predetermined types. The multiple pieces of information generated in this way are multiplexed in the same radio frame and transmitted multiple times on the radio link. Also, a transmission format combination identifier indicating the combination of the number of data within the transmission time interval for each of the plurality of pieces of information is inserted into each radio frame and transmitted. The transmission format combination identifier is selected and transmitted such that when the transmission time interval is longer and the number of data within the information transmission time interval changes, the upper bits of the transmission format combination identifier change.

[0019] Japanese Patent Laying-Open No. 2003-304195 discloses a method of selecting transmission format combination information in a transmission device. This transmission device is used for each transport channel. Selects transmission format combination information that defines combinations of transmission data bit lengths at predetermined time intervals. Then, based on the selected transmission format combination information, the transmission device multiplexes and transmits transmission data of each transport channel. According to the selection method, the transmission format combination information is classified based on the multiplex transmission data amount of each transport channel. Then, the class of the transmission format combination information to be selected is determined based on the transmission power value. Then, transmission format combination information is selected from within the determined class.

 Disclosure of the invention

 An object of the present invention is to provide a radio communication system, a mobile station, a base station controller, and a radio communication capable of allocating transmission power resources among a plurality of physical channels so as to satisfy required transmission quality. It is to provide a method.

Another object of the present invention is to provide a radio communication system, a mobile station, a base station control device, and a radio communication method that can effectively utilize transmission power resources.

[0022] Still another object of the present invention is to provide a radio communication system, a mobile station, a base station control device, and a radio communication method that can improve the information processing amount and the service quality. .

[0023] In a first aspect of the present invention, a radio communication system includes a base station controller, a base station connected to the base station controller, and a base station using the first physical channel and the second physical channel. A mobile station that communicates with the station. The mobile station includes a control unit that controls first transmission using the first physical channel and second transmission using the second physical channel, and a transmission unit connected to the control unit. The base station control device notifies the mobile station via the base station of a plurality of iTFCs (ransport Format and Combination) used in the first transmission as a first TFCS u'ransport Format Combination Set). Further, the base station control device notifies the mobile station via the base station of the plurality of second TFCs used in the second transmission as the second TFCs. The control unit determines a first allocated power allocated to the first transmission and a second allocated power allocated to the second transmission. The control unit selects one first TFC that can be used with the first allocated power from the first TFCS as a first selected TFC. In addition, the control unit selects one second TFC that can be used with the second allocated power from the second TFCS as a second selected TFC. . The transmitting unit performs a first transmission to the base station using the first selected TFC, and performs a second transmission using the second selected TFC.

[0024] The respective ratios of the first allocated power and the second allocated power to the power available to the mobile station are represented by y1 and γ2. These γ 1 and γ 2 are numbers from 0 to 1 inclusive.

In the wireless communication system according to the present invention, the control unit determines γ 1 and γ 2 such that the sum of γ 1 and γ 2 becomes 1. Further, based on the determined γ 1 and γ 2, the control unit determines the first allocated power and the second allocated power.

In the wireless communication system according to the present invention, the base station control device determines γ 1 and γ 2 so that the sum of γ 1 and γ 2 becomes 1, and moves the determined γ 1 and γ 2 Notify station control

. The control unit determines the first allocated power and the second allocated power based on the notified γ1 and γ2.

 In the wireless communication system according to the present invention, the control unit determines γ 1 and γ 2 such that the sum of γ 1 and γ 2 is larger than 1 and smaller than 2. Further, based on the determined γ 1 and γ 2, the control unit determines the first allocated power and the second allocated power.

 [0028] In the wireless communication system according to the present invention, the base station control device determines γ1 and γ2 such that the sum of γ1 and γ2 is greater than 1 and less than 2, and the determined γ1 And γ2 to the control unit of the mobile station. The control unit determines the first allocated power and the second allocated power based on the notified γ1 and γ2.

 [0029] In the wireless communication system according to the present invention, when the number of the plurality of transport channels corresponding to the first physical channel is larger than the number of the plurality of transport channels corresponding to the second physical channel, y 1 is determined to be greater than γ2.

 [0030] In the wireless communication system according to the present invention, if the transmission rate required for the first transmission is higher than the transmission rate required for the second transmission, y1 is determined to be larger than γ2. .

 [0031] In the wireless communication system according to the present invention, when the delay time required for the first transmission is smaller than the delay time required for the second transmission, y1 is determined to be larger than γ2. .

[0032] In the wireless communication system according to the present invention, the priority of the first transmission is equal to the priority of the second transmission. If greater, γ 1 is determined to be greater than γ 2.

[0033] In the radio communication system according to the present invention, the base station control device determines a range in which γΐ is determined from 0 to 1, and notifies the mobile station of the determined range. The control unit determines γ 1 from the notified range, and determines γ 2 so that the sum of y 1 and γ 2 becomes 1. Here, the base station control device determines the range so that the size of the range has a correlation with the burstiness of communication. Also, the number of the plurality of transport channels corresponding to the first physical channel is represented by Μ (Μ is a natural number), and the number of the plurality of transport channels corresponding to the second physical channel is represented by Ν (Ν If is a natural number), the base station controller determines the range such that the median of the range is given by ΜΖ (Μ + Μ). Further, the control unit compares the first data amount transmitted on the first physical channel with the second data amount transmitted on the second physical channel. When the first data amount is larger than the second data amount, the control unit determines γ1 such that γ1 is larger than the median value. When the first data amount is smaller than the second data amount, the control unit determines Ύ1 such that Ί1 is smaller than the median value. When the first data amount is equal to the second data amount, the control unit determines γ1 such that γ1 has a median value.

[0034] In the wireless communication system according to the present invention, the control unit includes a first transmission power required for the first transmission using the first selected TFC and a second transmission power required for the second transmission using the second selected TFC. Calculate the sum with the appropriate second transmission power. If the sum is greater than the maximum power available to the mobile station, the control unit adjusts at least one of the first transmission power and the second transmission power so that the sum is equal to the maximum power. The transmitting unit performs the first transmission and the second transmission using the adjusted first transmission power and the second transmission power.

[0035] In the second aspect of the present invention, the mobile station includes: a control unit that controls first transmission using the first physical channel and second transmission using the second physical channel; and a transmission unit connected to the control unit. Unit. The control unit receives, from the base station control device, a plurality of first TFCs used in the first transmission as the first TFCS, and receives a plurality of second TFCs used in the second transmission as the second TFCS. The control unit determines a first allocated power allocated to the first transmission and a second allocated power allocated to the second transmission. In addition, the control unit selects one first TFC that can be used with the first allocated power from the first TFCs, and selects one second TFC that can be used with the second allocated power from the second TFCS. The transmitter uses the above one TFC to the base station. The first transmission is performed, and the second transmission is performed using the one second TFC.

 [0036] In the mobile station according to the present invention, the control unit determines the first allocated power and the second allocated power such that the sum of the first allocated power and the second allocated power is equal to the usable power. Alternatively, the control unit determines the first allocated power and the second allocated power such that the sum of the first allocated power and the second allocated power is larger than the available power.

 [0037] In a third aspect of the present invention, a base station control apparatus includes a TFCS determining unit, a power allocation parameter determining unit, and a transmitting unit connected to the TFCS determining unit and the power allocation parameter determining unit. The TFCS determination unit determines a first TFCS and a second TFCS. The power allocation parameter determination unit determines a ratio of each of the first allocated power and the second allocated power to the power available to the mobile station. The transmitting unit notifies the mobile station via the base station of the determined first TFCS, second TFCS, and ratio.

 [0038] In the wireless communication method according to the present invention, (A) the base station control apparatus transmits the plurality of first TFCs used in the first transmission on the first physical channel to the mobile station via the base station as first TFCs (B) notifying the mobile station via the base station of the plurality of second TFCs used in the second transmission on the second physical channel as the second TFCs, and The mobile station determines a first allocated power allocated to the first transmission and a second allocated power allocated to the second transmission; and (D) the mobile station can use the first allocated power with the first allocated power. (E) selecting one first TFC as a first selected TFC as a first TFC; and (E) the mobile station selecting one second TFC available at a second allocated power as a second selected TFC as a second TFC. And (F) the mobile station performs a first transmission to the base station using the first selected TFC. And a step of performing a second transmission using a second selection TFC.

 According to the radio communication system, the mobile station, the base station controller, and the radio communication method according to the present invention, transmission power resources are allocated among a plurality of physical channels so as to satisfy required transmission quality. It is possible to do.

 [0040] According to the radio communication system, the mobile station, the base station control device, and the radio communication method according to the present invention, it is possible to effectively utilize transmission power resources.

According to the wireless communication system, the mobile station, the base station control device, and the wireless communication method according to the present invention, it is possible to improve the information processing amount and the service quality. Brief Description of Drawings

 FIG. 1 is a conceptual diagram showing a state transition of a TFC in a WCDMA system.

 FIG. 2 is a diagram for explaining a wireless communication method in a conventional WCDMA system.

 FIG. 3 is a conceptual diagram showing a configuration of a wireless communication system according to the present invention.

 FIG. 4 is a block diagram showing a configuration of a mobile station according to the present invention.

 FIG. 5 is a block diagram showing a configuration of a base station control device according to the present invention.

 FIG. 6A is a diagram for explaining the wireless communication method according to the present invention.

 FIG. 6B is a diagram for explaining the wireless communication method according to the present invention.

 FIG. 6C is a diagram illustrating a wireless communication method according to the present invention.

 FIG. 7 is a diagram for explaining a wireless communication method according to the first to third embodiments of the present invention.

 FIG. 8 is a diagram for explaining a wireless communication method according to the first embodiment of the present invention.

 FIG. 9 is a diagram for explaining a wireless communication method according to fourth and fifth embodiments of the present invention.

 BEST MODE FOR CARRYING OUT THE INVENTION

With reference to the accompanying drawings, a wireless communication system and a wireless communication method according to the present invention will be described.

FIG. 3 is a conceptual diagram showing a configuration of a wireless communication system according to the present invention. The wireless communication system 10 includes a base station controller 300, a plurality of base stations 200 communicably connected to the base station controller 300, and a plurality of mobile stations 100 connected to each of the plurality of base stations 200. Prepare. For example, in FIG. 3, a base station 200A and a base station 200B are connected to the base station controller 300, and each of the base station 200A and the base station 200B has a cell 50A and a cell 50B as communication areas. Have. Mobile stations 100a to 100c are wirelessly connected to base station 200A, and mobile stations 100d and 100e are wirelessly connected to base station 200B. Note that the number of base stations 200 and the number of mobile stations 100 are not limited to those shown in FIG. [0045] In the wireless communication system 10 according to the present invention, the base station 200 can perform communication using a plurality of physical channels. For example, in FIG. 3, it is assumed that base station 200A can perform communication using DCH and EDCH, and base station 200B can perform communication using DCH. The mobile stations 100a and 100c communicate with the base station 2 OOA using DCH and EDCH. The mobile station 100b communicates with the base station 200A using only the DCH. Mobile stations 100d and 100e communicate with base station 200B using only DCH. The DCH includes a DPDCH (Dedicated Physical Data Channel) for transmitting user information and a DPCCH (Dedicated Physical Control Channel) for transmitting a control signal.

 FIG. 4 is a block diagram showing a configuration of the mobile station 100 according to the present invention. As shown in FIG. 4, mobile station 100 includes control section 101 and transmission processing section 140 connected to control section 101. As will be described in detail later, the control unit 101 performs selection processing of TFC and ETFC used for communication, control of transmission power, and the like. Transmission processing section 140 actually transmits data to base station 200 based on the TFC, ETFC, and transmission power determined by control section 101. Further, transmission processing section 140 includes transmission power measuring section 141 for measuring actual transmission power. Further, control section 101 is connected to reception processing section 150 via control signal separation section 160. The reception processing unit 150 receives a signal from the base station 200 and supplies the signal to the control unit 101.

 [0047] Control section 101 includes DCH transmission control section 110, EDCH transmission control section 120, and transmission power control section 130. DCH transmission control section 110 controls transmission using DCH, and EDCH transmission control section 120 controls transmission using EDCH. The DCH transmission control section 110 includes a TFC selection section 111 for selecting a TFC from the TFCS, and a DCH buffer 115 for storing data transmitted on the DCH. Further, the EDCH transmission control section 120 includes an ETFC selection section 121 for selecting an ETFCS-powered ETFC, and an EDCH buffer 125 for storing data transmitted on the EDCH.

[0048] Transmission power control section 130 is connected to DCH transmission control section 110 and EDCH transmission control section 120. The transmission power control unit 130 includes a power allocation unit 131 that allocates power to each of the DCH and the EDCH, and an adjustment unit 132 that adjusts the determined transmission power. It has.

 FIG. 5 is a block diagram showing a configuration of the base station controller 300 according to the present invention. Base station control apparatus 300 includes reception processing section 310, control section 320, power allocation parameter determining section 330, TFCS determining section 340, signal combining section 350, and transmission processing section 360.

 Next, the operation of the wireless communication system 10 having the configuration shown in FIGS. 3 to 5 will be described in detail.

 Referring to FIG. 5, reception processing section 310 of base station control apparatus 300 receives data from base station 200 and sends the data to control section 320. The control unit 320 sends the received data to a network (not shown). Further, control section 320 controls operations of power allocation parameter determining section 330, TFCS determining section 340, and signal combining section 350. For example, control section 320 extracts information on the type of service that mobile station 100 is communicating with, and sends the information to power allocation parameter determination section 330 and TFCS determination section 340. Examples of this service type include a service having a high burst property such as file transfer by FTP, and a service having a low burst property such as streaming.

 [0052] Power allocation parameter determining section 330 generates a "power allocation parameter". The “power allocation parameter” is a parameter referred to by the power allocating section 131 when the power allocating section 131 of the mobile station 100 allocates power to each of the DCH and the EDCH. The content indicated by the power allocation parameter differs depending on a plurality of embodiments described later. The generated power allocation parameters are output to signal combining section 350.

 [0053] TFCS determining section 340 determines TFCS and ETFCS that mobile station 100 may use, based on information on the type of service sent from control section 320. As described above, this TFCS indicates a plurality of TFCs used for transmission on the DCH, and ETFCS indicates a plurality of ETFCs used for transmission on the EDCH. The determined TFCS and ETFCS are output to signal combining section 350.

 [0054] Signal combining section 350 combines TFCS, ETFCS, and information on power allocation parameters, and sends the combined signal to transmission processing section 360. Transmission processing section 360 transmits the control signal including the combined signal to base station 200 and mobile station 100 using the downlink DCH.

[0055] Base station 200 measures the noise rise received on the uplink. And that noise line The base station 200 updates the maximum TFC of the EDCH at a predetermined timing so that the time becomes equal to or less than a predetermined threshold. This maximum TFC is reported to the mobile station 100.

 Referring to FIG. 4, reception processing section 150 of mobile station 100 receives a signal from base station 200 and sends the received signal to control signal separation section 160. Control signal separation section 160 separates the received signal into user information and a control signal, and sends the user information to an upper layer. On the other hand, the control signal including the “power allocation parameter” as described above is sent to power allocating section 131 of transmission power control section 130. The content indicated by the power allocation parameter differs depending on a plurality of embodiments described later.

 In mobile station 100 according to the present invention, power allocating section 131 separately allocates allocated power AP-DCH allocated to transmission using DCH and allocated power AP-EDCH allocated to transmission using EDCH. decide. The allocated power AP-DCH and the allocated power AP-EDCH are given by the following equations.

 [0058] AP-DCH = y X P

 DCH AVL

AP-EDCH = y X P… hi)

 EDCH AVL

 [0059] Here, P is an allocatable power that can be allocated to transmission by DCH and EDCH.

 AVL

 For example, as the allocatable power P, the maximum transmission power P of the mobile station 100 can be mentioned.

 AVL MAX

 As shown in this equation (hereinafter referred to as equation (1)), the power allocation coefficient γ

 DCH is defined as the ratio of allocated power ΑΡ—DCH to allocatable power Ρ. Also, the power quota

 AVL

 The number γ is defined as the ratio of allocated power ΑΡ— EDCH to allocatable power 電力.

EDCH AVL

 The These power allocation coefficients γ and γ are numbers from 0 to 1 inclusive. As mentioned above

 DCH EDCH

 Thus, the DCH includes the DPDCH for transmitting user information and the DPCCH for transmitting a control signal, and the allocated power AP-DCH includes power for both the DPDCH and the DPCCH.

Next, power allocating section 131 notifies TFC selecting section 111 of DCH transmission control section 110 of the determined allocated power AP-DCH. Further, power allocating section 131 notifies ETFC selecting section 121 of EDCH transmission control section 120 of the determined allocated power AP-EDCH. According to the present invention, allocated power AP-DCH and allocated power AP-EDCH are used as criteria for determining the states of a plurality of TFCs and a plurality of ETFCs, respectively. That is, TFC And ETFC selection process are based on different criteria than common criteria (maximum transmit power P)

 MAX

 (Allocated power AP—DCH, Allocated power AP—EDCH).

[0061] Transmission power measurement section 141 of transmission processing section 140 measures the actual transmission power for the TFC in use, and notifies TFC selection section 111 of the measured actual transmission power. The TFC selection unit 111 estimates the required power (required power) when each of the plurality of TFCs is used, based on the used TFC and the actual transmission power. Here, the required power means the power required to satisfy a predetermined quality. Then, the TFC selector 111 determines the power requirement based on the estimated power requirement! First, each of the multiple TFCs is classified into one of the three states shown in Fig. 1. Specifically, it is determined whether or not the estimated required power is “greater than the allocated power AP—DCHJ” for a period S or more in the past predetermined period T. Each state of the TFC is determined.

FIG. 6A shows an example of a plurality of TFCs (TFCS) in a certain mobile station 100 and an estimated transmission power level when using them. When the transmission rate (bit rate) is high, the power required to satisfy the given quality increases, and when the transmission rate is low, the power required decreases. Thus, in FIG. 6A, the Z-axis shows the transmission rate as well as the power. In FIG. 6A, TFCS includes TFC1 to TFC6. Each state of the plurality of TFCs is determined based on the allocated power AP-DCH. For example, in FIG. 6A, TFC1 to TFC3 are classified into a first state (Supported State), and TFC4 is classified into a second state (Supported State).

 Excess-Power State), and TFC5 and TFC6 are classified into the third state (Blocked State). The states of the plurality of TFCs are stored as TFC state data 112 (see FIG. 4) and updated at a predetermined timing.

[0063] TFC selecting section 111 selects one TFC (selected TFC) to be used for the DCH from the TFCS specified by base station controller 300 at predetermined transmission intervals. At this time, the selected TFC is selected from TFCs other than the third state (Blocked State) so that the transport channel with a higher priority has a higher transmission rate. As a result, for example, in FIG. 6A, the TFC selection unit 111 selects TFC4 as the selected TFC. In this case, it is assumed that the power required to transmit on the DCH using the selected TFC4 (hereinafter referred to as “temporary transmission power”) is represented by PP—DCH. As in the case of the TFC, the transmission power measurement section 141 of the transmission processing section 140 measures the actual transmission power for the ETFC in use, and notifies the ETFC selection section 121 of the measured actual transmission power. I do. The ETFC selection unit 121 estimates the required power (required power) when each of the plurality of ETFCs is used, based on the used ETFC and the actual transmission power. Here, the required power means the power required to satisfy a predetermined quality. Then, ETFC selection section 121 classifies each of the plurality of ETFCs into one of the three types of states shown in FIG. 1 based on the estimated required power. Specifically, it is determined whether or not the estimated required power is greater than “allocated power AP-EDCH” for a period S or more in the past predetermined period T. This determines the status of each of the multiple ETFCs applied to the EDCH.

 FIG. 6B shows an example of a plurality of ETFCs (ETFCS) in a certain mobile station 100 and an estimated transmission power level when using them. In FIG. 6B, the Z-axis also shows the transmission speed together with the power. In FIG. 6B, ETFCS includes ETFC1 to ETFC6. Each state of the plurality of ETFCs is determined based on the allocated power AP-EDCH. For example, in FIG. 6B, ETFC1 to ETFC3 are classified into a first state (Supported State), ETFC4 is classified into a second state (Excess-Power State), and ETFC5 and ETFC6 are classified into a third state (Blocked State). )are categorized. The states of the plurality of ETFCs are stored as ETFC state data 122 (see FIG. 4) and are updated at a predetermined timing.

 [0066] The ETFC selection unit 121 selects one ETFC (selected ETFC) to be used for EDCH from the ETFCS specified by the base station control device 300 at a predetermined transmission interval. At this time, the selected ETFC is selected from TFCs other than the third state (Blocked State) so that the transport channel with a higher priority has a higher transmission rate. Further, in the selection of the ETFC, only the ETFC whose transmission speed is equal to or lower than the maximum TFC notified by the base station 200 is selected. As a result, for example, in FIG. 6B, the ETFC selection unit 121 selects ETFC4 as the selected ETFC. In this case, the power required to transmit on the EDCH using the selected ETFC4 is represented by PP-EDCH.

The TFC selected by the TFC selection unit 111 and the ETFC selected by the ETFC selection unit 121 are notified to the adjustment unit 132 of the transmission power control unit 130. The adjustment unit 132 Calculate the sum of the provisional transmission power PP—DCH and the provisional transmission power PP—EDCH corresponding to the selected TFC, and calculate the total power (= “PP—DCH” + “PP—EDCH”) and the maximum transmission Compare with power P. FIG. 6C is a diagram for explaining the operation of the adjusting unit 132.

 MAX

 FIG. If the total power is greater than the maximum transmit power P, as shown in Figure 6C,

 MAX

 Adjustment section 132 adjusts temporary transmission power PP— so that the total power becomes equal to maximum transmission power P.

 MAX

DCH and provisional transmit power PP—Adjust at least one of EDCH. In general, there are times when data is not transmitted when data is not always transmitted. Also, the target transmission rate may be achieved even with power smaller than the allocated power. In such a case, unused power can be allocated to a physical channel requiring the power.

 [0068] In this way, transmission power P-DCH for DCH and transmission power P-EDCH for EDCH are finally determined. If the total power is less than the maximum transmit power P

 MAX

 In this case, the provisional transmission power PP-DCH and PP-EDCH power are directly used as transmission power P-DCH and transmission power P-EDCH. Transmission processing section 140 executes transmission by DCH by using the selected TFC and transmission power P—DCH, and executes transmission by EDCH by using the selected ETFC and transmission power P—EDCH.

[0069] As described above, in the wireless communication system 10 according to the present invention, the mobile station 100 sets the reference allocated power (AP-DCH, AP-EDCH) in the TFC selection process to each physical Decide for the channel Therefore, the probability that the mobile station 100 can select a TFC and an ETFC satisfying the required transmission quality within the maximum available power P is increased.

MAX

 Up.

 [0070] Hereinafter, a method of determining the allocated power AP-DCH and the allocated power AP-EDCH will be described in more detail.

(First Embodiment)

 In the first embodiment of the present invention, y + y = 1

 Power allocation y to be DCH EDCH

 DCH and γ

 EDCH is determined. At this time, if a certain parameter γ is used, the power allocation γ

 DCH is γ = γ

 Power allocation coefficient γ given by DCH

 EDCH is given by γ = 1−γ

 EDCH

available. Here, the parameter γ is a number from 0 to 1. At this time, the above equation (1) becomes Is transformed into the following equation (2).

[0072] AP-DCH = γ X P

 AVL

AP-EDCH = (l-y) Χ Ρ '(2)

 AVL

 FIG. 7 is a diagram showing states of a plurality of TFCs and a plurality of ETFCs, and a relationship between allocated power AP-DCH and allocated power AP-EDCH. As shown in equation (2), the allocatable power P is

 AVL

 , Allocated power AP—DCH and allocated power AP—EDCH. In FIG. 7, the ET FCS includes ETFC1 to ETFC6, and the TFCS includes TFC1 to TFC6. The state of each of the plurality of ETFs is determined based on the allocated power AP-EDCH. For example, in FIG. 7, ETFC1 to ETFC4 are classified into a first state (Supported State), ETFC5 is classified into a second state (Excess-Power State), and ETFC6 is classified into a third state (Blocked State). Is done. In addition, each state of the plurality of TFCs is determined based on the allocated power AP-DCH. For example, in FIG. 7, TFC1 to TFC3 are classified into a first state (Supported State), TFC4 is classified into a second state (Excess-Power State), and TFC5 and TFC6 are classified into a third state (Blocked State). are categorized. At this time, the ETFC selector 121 selects ETFC5 as the selected ETFC, and the TFC selector 111 selects TFC4 as the selected TFC. In the present embodiment, the total power of provisional transmission power PP—DCH and provisional transmission power PP—EDCH is the allocatable power P

 It is smaller than AVL.

 Next, a specific method for determining the above parameter γ in the first embodiment of the present invention will be described in detail.

 (Example 11)

Control section 320 of base station control apparatus 300 extracts information on the type of service that mobile station 100 is communicating with. Examples of this service type include file transfer by FTP and high burstiness, and streaming services and low burstiness service. The control unit 320 sends the information on the service type to the power allocation parameter determining unit 330. Further, control section 320 sends information on “the number of transport channels” to power allocation parameter determining section 330. For example, assume that the number of transport channels corresponding to DCH is M (M is a natural number), and the number of transport channels corresponding to EDCH is N (N is a natural number). At this time, these numbers M and N The power allocation parameter determination unit 330 is notified.

In the first embodiment of the present invention, power allocation parameter determination section 330 specifies a “range” that is an index when power allocation section 131 of mobile station 100 determines parameter γ. FIG. 8 is a diagram for explaining this “range”. As shown in FIG. 8, this “range” is defined by a median 0 and a width Δy from the median γ. Or this

 0 0

 Is defined by a maximum value γ and a minimum value γ. This "range" is between 0 and 1

 max min

 Exists in between. That is, the maximum value γ and the minimum value γ are numbers between 0 and 1. This

 max mm

 At this time, γ and γ are given by the following equation (3).

 max min

 [0077] y = min (y + Δ γ, 1)

 max 0

 y = max (y — Δ y, 0)… (3)

 min 0

 In the present embodiment, the power parameter determination unit 330 sets the median γ to “transport channel

 0

 Number of flannels ". Specifically, the median γ is calculated using the numbers Μ and Ν described above.

 0

 And γ = ΜΖ (Μ + 、). Note that the power allocation coefficient γ is expressed as (1 γ)

0 DCH

 When the power allocation coefficient γ EDCH is represented by γ, the median value γ 0 is given by γ 0 = ΝΖ (Μ + Ν). Further, power parameter determining section 330 determines width Δγ such that width Δγ and the “burst property” of communication have a correlation. That is, the higher the burstiness of the service during communication, the larger the width Δγ is set. For example, for a service such as file transfer by FTP, the width Δy is set to be larger than the width Δγ for a service such as streaming.

 The “range” determined as described above is reported from the base station control device 300 to the mobile station 100. That is, in the present embodiment, the above-described power allocation parameters are the median γ and the width

 0

Δy, or the maximum value γ and the minimum value γ. For example, the maximum value γ and the minimum value γ

 max min max min is transmitted from power allocation parameter determination section 330 of base station control apparatus 300 to power allocation section 131 of mobile station 100.

[0080] Power allocating section 131 of mobile station 100 selects parameter γ from the "range" notified by base station controller 300, ie, between maximum value γ and minimum value γ (see FIG. 8). ). This

 max min

Here, the power allocating unit 131 compares the amount of data stored in the DCH buffer 115 with the amount of data stored in the EDCH buffer 125, and based on the comparison result! / ヽ To determine the parameter γ. Specifically, the amount of data stored in the DCH buffer 115 (hereinafter referred to as DCH transmission data amount) is changed to the amount of data stored in the EDCH buffer 125 (hereinafter referred to as EDCH transmission data amount). Power allocation section 131 sets parameter γ to be larger. Therefore, when the DCH transmission data amount is larger than the EDCH transmission data amount, the parameter γ takes a value between the median value γ and the maximum value γ.

 0 max

 Conversely, when the amount of DCH transmission data is larger than the amount of EDCH transmission data, the parameter γ is a value between the central value γ and the minimum value γ. DCH transmission data volume is equal to EDCH transmission data volume

0 mm

 If they are equal, the parameter γ is the median γ. Power allocating section 131 transmits DCH transmission data.

 0

 Calculate the ratio between the data amount and the EDCH transmission data amount, and determine the parameter γ based on the calculated ratio.

 As explained above, according to the present embodiment, the median γ is

 0

 Is determined based on the number of That is, if the number of transport channels transmitted on the DCH is larger than the number of transport channels transmitted on the EDCH, the allocated power AP-DCH tends to be larger than the allocated power AP-EDCH. Conversely, if the number of transport channels transmitted on the EDCH is greater than the number M of transport channels transmitted on the DCH, the allocated power AP—EDCH tends to be larger than the allocated power AP—DCH. In this way, a tendency is realized that more allocated power is allocated to a physical channel having a larger number of transport channels. Therefore, it becomes possible to allocate transmission power resources among a plurality of physical channels so as to satisfy required transmission quality.

Further, parameter γ can be adjusted within a “range” specified by base station controller 300.

Adjustment of this parameter γ is performed by comparing the DCH transmission data amount and the EDCH transmission data amount. That is, more allocated power is allocated to physical channels that require higher transmission rates. As a result, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved. Here, the range (width Δγ) is determined in consideration of the burstiness of the service. In the case of communication including a service with high burstiness, the width Δγ is set to be large. Thereby, the range of parameter γ that mobile station 100 can select is expanded. As a result, when the burstiness of the service is high, the adjustment of parameter γ described above works more effectively. become.

 (Example 1 2)

 In the present embodiment, the power parameter determination unit 330 determines the median γ as “the required transmission

 0

 Speed ". For example, assume that the transmission rate required for data transmission using DCH is 64 kbps, and the transmission rate required for data transmission using EDCH is 128 kbps. At this time, the median value γ is set to a value smaller than 0.5 so that the probability that the allocated power AP-EDCH becomes higher than the allocated power AP-DCH becomes higher. Using DCH

 0

 When the transmission rate required for data transmission is Α and the transmission rate required for data transmission using EDCH is B, power parameter determining section 330 sets median γ to ΑΖ (Α + Β)

 0

 May be set. Note that the power allocation coefficient γ is represented by (1−γ), and the power allocation coefficient γ

 DCH EDCH

 Is represented by γ, the median γ is given by ΒΖ (Α + Β).

 0

 As described above, power parameter determining section 330 compares the transmission rates required for the respective physical channels. Then, power parameter determining section 330 determines central value γ such that the probability that the allocated power allocated to the physical channel requiring a high transmission rate increases will be high. The width Δγ communicates with the width Δγ similarly to the case of the above-described embodiment.

0

 Are determined to have a correlation. Power allocating section 131 of mobile station 100 determines parameter γ from “range” specified by power parameter determining section 330.

 [0085] As described above, a tendency is realized that more allocated power is allocated to a physical channel that requires a higher transmission rate. Therefore, transmission power resources can be allocated among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be used effectively, and the amount of information processing and service quality can be improved.

 [0086] (Example 13)

 In the present embodiment, the power parameter determination unit 330 determines the median γ as “the required delay”.

 0

Time ". For example, suppose that DCH is used for transmitting call data and used for EDCH S file transfer. At this time, it is desired that the delay time for the call data is shorter than the delay time for the file transfer. Therefore, the median γ is 0 so that the probability that the allocated power AP—DCH is larger than the allocated power AP—EDCH is high. . Set to a value greater than 5. Note that the power allocation coefficient γ is represented by (1−γ),

 DCH

 When the coefficient γ is represented by γ, the median γ is set to a value smaller than 0.5.

 EDCH 0

 [0087] As described above, power parameter determining section 330 compares the delay time required for each physical channel. Then, power parameter determining section 330 determines median value γ such that the probability that the allocated power allocated to the physical channel requiring a small delay time increases becomes high. The width Δγ is the same as the width Δγ as in the case of the above-described embodiment.

 0

 The "burstiness" of the signal is determined to be correlated. Power allocating section 131 of mobile station 100 determines parameter γ from “range” specified by power parameter determining section 330.

 [0088] As described above, a tendency is realized that more allocated power is allocated to a physical channel that requires a smaller delay time. Therefore, it becomes possible to allocate transmission power resources among a plurality of physical channels so as to satisfy required transmission quality. In addition, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 (Example 14)

 In the present embodiment, the power parameter determination unit 330 determines the median γ based on “priority”.

 0

 To decide. For example, suppose that a transmission rate guarantee service is applied to data transmission by DCH, and a best-ef-to-auto service is applied to data transmission by EDCH. At this time, the priority of data transmission by DCH is set higher than the priority of data transmission by EDCH. Therefore, the median value γ is set to a value larger than 0.5 so that the probability that the allocated power AP-DCH becomes larger than the allocated power AP-EDCH increases. In addition,

 0

 Power allocation coefficient 0 1 γ) γ

 DCH is represented by (, and power allocation coefficient γ

 When EDCH is represented by, the median y is set to a value smaller than 0.5.

 0

 As described above, power parameter determination section 330 compares the priorities of data transmission by the respective physical channels. Then, the power parameter determining section 330 calculates the median value so that the probability that the allocated power allocated to the physical channel having the higher priority becomes higher becomes higher.

Ύ Determine. The width Δγ is similar to the width Δγ and the communication

0

The "first strike" is determined to have a correlation. Power allocating section 131 of mobile station 100 determines parameter γ from “range” specified by power parameter determining section 330. [0091] As described above, a tendency is realized that more allocated power is allocated to a physical channel having a higher priority. Therefore, transmission power resources can be distributed among a plurality of physical channels so as to satisfy required transmission quality. In addition, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 [0092] (Second embodiment)

 In the second embodiment of the present invention, as in the first embodiment, y + y

 DCH EDC

 Power allocation coefficients γ and γ are determined such that = 1 (see FIG. 7). At this time,

H DCH EDCH

 Using a certain parameter γ, the power allocation coefficient γ is given by γ = y,

 DCH DCH

 The coefficient 0 is given by 0 = 1 1 (see equation (2)). Where the parameter γ is

 EDCH EDCH

 It is a number from 0 to 1.

In the present embodiment, parameter γ is directly selected from the range of 0 to 1 by power allocating section 131 of mobile station 100. This is because, in the first embodiment, the maximum values γ and γ power determined by the power allocation parameter determination unit 330 of the base station control device 300

 max min is equivalent to being fixed to 1 and 0 respectively. As a result, it is possible to select the parameter γ in a wide selection range. After determining the parameter γ, the power allocating section 131 of the mobile station 100 determines the allocated power ΑΡ—DCH and the allocated power ΑΡ—EDCH according to the above equation (2).

(Example 2-1)

 In the present embodiment, the power allocating unit 131 determines the parameter γ based on “the number of transport channels”. For example, assume that the number of transport channels corresponding to DCH is Μ (Μ is a natural number), and the number of transport channels corresponding to EDCH is N (N is a natural number). At this time, the parameter γ is given by y = MZ (M + N). Note that the power allocation coefficient γ is represented by (1 γ), and the power allocation coefficient γ is represented by γ

 DCH EDCH

 In this case, the parameter Ί is given by Ί = NZ (M + N).

As described above, according to the present embodiment, when the number M of transport channels transmitted on the DCH is larger than the number N of transport channels transmitted on the EDCH, the allocated power AP—DCH is Power AP—greater than EDCH. Conversely, if the number N is greater than the number M, The allocated power AP-EDCH tends to be larger than the allocated power AP-DCH. In this way, more allocated power is allocated to a physical channel having a larger number of transport channels. Therefore, transmission power resources can be allocated among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

(Example 2-2)

 In the present embodiment, the power allocating unit 131 determines the parameter γ based on the “required transmission rate”. For example, assume that the transmission rate required for data transmission using DCH is 64 kbps, and the transmission rate required for data transmission using EDCH is 128 kbps. At this time, the parameter γ is set to a value smaller than 0.5 so that the allocated power AP-EDCH becomes larger than the allocated power AP-DCH. When the transmission rate required for data transmission using DCH is Α and the transmission rate required for data transmission using EDCH is Β, power allocation section 131 sets parameter γ to AZ (A + B ) May be set. When the power allocation coefficient γ is represented by (1 γ) and the power allocation coefficient γ is represented by γ, the parameter γ

 DCH EDCH

 Is given by BZ (A + B).

 [0097] As described above, power allocating section 131 compares the transmission rates required for the respective physical channels. Then, power allocating section 131 determines parameter γ such that the allocated power allocated to the physical channel requiring a high transmission rate is increased. Therefore, transmission power resources can be distributed among a plurality of physical channels so as to satisfy the required transmission quality. In addition, transmission power resources can be effectively used, and information processing amount and service quality can be improved.

 (Example 2-3)

In the present embodiment, the power allocating unit 131 determines the parameter γ based on “the required delay time”. For example, assume that DCH is used for transmitting call data, and EDCH is used for file transfer. At this time, it is desirable that the delay time for call data is shorter than the delay time for file transfer. Therefore, the parameter γ is set to a value larger than 0.5 so that the allocated power AP-DCH is larger than the allocated power AP-EDCH. Note that the power allocation coefficient γ is expressed as (1γ), and the power allocation coefficient γ is expressed as γ. In this case, the parameter γ is set to a value smaller than 0.5.

 [0099] As described above, power allocating section 131 compares the delay time required for each physical channel. Then, power allocating section 131 determines parameter γ such that the allocated power allocated to the physical channel requiring a small delay time increases. Therefore, transmission power resources can be distributed among a plurality of physical channels so as to satisfy the required transmission quality. In addition, transmission power resources can be effectively used, and information processing amount and service quality can be improved.

 (Example 2—4)

 In the present embodiment, the power allocation unit 131 determines the parameter γ based on “priority”. For example, it is assumed that a transmission rate assurance service is applied to data transmission by DCH, and a best effort service is applied to data transmission by EDCH. At this time, the priority of data transmission by DCH is set higher than the priority of data transmission by EDCH. Therefore, parameter γ is set to a value larger than 0.5 so that the allocated power ΑΡ—DCH becomes larger than the allocated power ΑΡ—EDCH. Note that the power allocation coefficient γ is

 DCH

 When the power allocation coefficient γ is represented by γ, the parameter γ is smaller than 0.5.

 EDCH

 Is set to the default value.

 [0101] As described above, the power allocating unit 131 compares the priorities of data transmission by the respective physical channels. Then, power allocating section 131 determines parameter γ such that the allocated power allocated to the physical channel having the higher priority becomes larger. Therefore, transmission power resources can be distributed among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be used effectively, and the amount of information processing and service quality can be improved.

 [0102] (Third embodiment)

 In the third embodiment of the present invention, as in the first embodiment, y + y

 DCH EDC

 Power allocation coefficients γ and γ are determined such that = 1 (see FIG. 7). At this time,

H DCH EDCH

 Using a certain parameter γ, the power allocation coefficient γ is given by γ = y,

 DCH DCH

 The coefficient 0 is given by 0 = 1 1 (see equation (2)). Where the parameter γ is

 EDCH EDCH

It is a number from 0 to 1. In this embodiment, parameter γ is directly selected from the range of 0 to 1 by power allocation parameter determining section 330 of base station control apparatus 300. That is, the power allocation parameter indicates the parameter γ. Power allocation parameter determining section 330 notifies power allocating section 131 of mobile station 100 of the determined parameter γ. Using the notified parameter γ, power allocating section 131 determines allocated power AP-DCH and allocated power ΑΡ EDCH according to equation (2) described above.

 (Example 3-1)

 In the present embodiment, the power allocation parameter determining unit 330 determines the parameter γ based on “the number of transport channels”. For example, assume that the number of transport channels corresponding to DCH is Μ (Μ is a natural number), and the number of transport channels corresponding to EDCH is Ν (Ν is a natural number). At this time, the parameter γ is given by y = M / (M + N). Note that the power allocation coefficient γ is represented by (1−γ), and the power allocation coefficient γ

 DCH

 Is represented by γ, the parameter γ is given by γ = ΝΖ (Μ + Ν).

 EDCH

 As described above, according to the present embodiment, when the number M of transport channels transmitted on the DCH is larger than the number N of transport channels transmitted on the EDCH, the allocated power AP—DCH is Power AP—greater than EDCH. Conversely, when the number N is larger than the number M, the allocated power AP-EDCH tends to be larger than the allocated power AP-DCH. In this way, more allocated power is allocated to a physical channel having a larger number of transport channels. Therefore, transmission power resources can be allocated among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 (Example 3-2)

In this embodiment, the power allocation parameter determining unit 330 determines the parameter γ based on the “required transmission rate”. For example, assume that the transmission rate required for data transmission using DCH is 64 kbps, and the transmission rate required for data transmission using EDCH is 128 kbps. At this time, the parameter γ is set to a value smaller than 0.5 so that the allocated power AP-EDCH becomes larger than the allocated power AP-DCH. The transmission rate required for data transmission using DCH is 、, and the transmission rate required for data transmission using EDCH is When the speed is B, the power allocation parameter determination unit 330 may set the parameter γ to AZ (A + B). Note that the power allocation coefficient γ is represented by (1−γ), and the power allocation coefficient γ

 DCH EDCH

 Is expressed as γ, the parameter γ is given by ΒΖ (Α + Β).

[0107] Thus, power allocation parameter determining section 330 compares the transmission rates required for each physical channel. Then, power allocation parameter determining section 330 determines parameter γ such that the allocated power allocated to the physical channel requiring a large transmission rate increases. Therefore, transmission power resources can be distributed among a plurality of physical channels so as to satisfy required transmission quality. In addition, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 (Example 3-3)

 In the present embodiment, the power allocation parameter determining unit 330 determines the parameter γ based on “required delay time”. For example, suppose that DCH is used for transmitting call data, and DCH is used for file transfer. At this time, it is desirable that the delay time for the call data is shorter than the delay time for the file transfer. Therefore, the parameter γ is set to a value larger than 0.5 so that the allocated power AP-DCH is larger than the allocated power AP-EDCH. Note that the power allocation coefficient γ is represented by (1−γ), and the power allocation coefficient γ

 DCH

 Is represented by γ, the parameter γ is set to a value smaller than 0.5.

 EDCH

 As described above, power allocation parameter determining section 330 compares the delay time required for each physical channel. Then, power allocation parameter determination section 330 determines parameter γ such that the allocated power allocated to the physical channel requiring a short delay time increases. Therefore, transmission power resources can be distributed among a plurality of physical channels so as to satisfy required transmission quality. In addition, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 (Example 3-4)

In this embodiment, the power allocation parameter determination unit 330 determines the parameter γ based on “priority”. For example, for data transmission by DCH, a transmission rate guarantee service is required. It has been applied, and it is assumed that the EFCH data transmission is applied to the Best F-Auto Service. At this time, the priority of data transmission by DCH is set higher than the priority of data transmission by EDCH. Therefore, the parameter γ is set to a value larger than 0.5 so that the allocated power AP-DCH is larger than the allocated power AP-EDCH. The power allocation coefficient γ

 The DCH is represented by (1γ) and the power allocation coefficient γ

 When EDCH is represented by γ, the parameter γ is set to a value smaller than 0.5.

 [0111] As described above, power allocation parameter determining section 330 compares the priorities of data transmission on the respective physical channels. Then, power allocation parameter determining section 330 determines parameter γ such that the allocated power allocated to the physical channel having the higher priority becomes larger. Therefore, transmission power resources can be distributed among a plurality of physical channels so as to satisfy required transmission quality. In addition, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 (Fourth Embodiment)

 In the fourth embodiment of the present invention, the power allocation coefficient γ

 DCH and γ

 Sum of EDCH (γ +

 DCH

 The power allocation coefficients γ and γ are determined so that Ύ) is larger than 1 and smaller than 2.

EDCH DCH EDCH

 It is.

 FIG. 9 is a diagram showing states of a plurality of TFCs and a plurality of ETFCs, and a relationship between allocated power AP-DCH and allocated power AP-EDCH. In FIG. 9, ETFCS includes ETFC1 to ETFC6, and TFCS includes TFC1 to TFC6. The status of each of the plurality of ETFCs is determined based on the allocated power AP—EDCH. For example, in FIG. 9, ETFC1 to ETFC4 are classified into a first state (Supported State), and ETFC5 is classified into a second state (Supported State).

 Excess-Power State), and ETFC6 is classified into the third state (Blocked State). Also, each state of the plurality of TFCs is determined based on the allocated power AP-DCH. For example, in FIG. 9, TFC1 to TFC5 are classified into a first state (Supported State), and TFC6 is classified into a second state (Excess-Power State). At this time, the ETFC selector 121 selects ETFC5 as the selected ETFC, and the TFC selector 111 selects TFC6 as the selected TFC.

As shown in FIG. 9, in the present embodiment, provisional transmission power PP—DCH and provisional transmission power Power PP—Total power with EDCH is greater than allocatable power P. Therefore,

 AVL

 The meter power may exceed the maximum transmission power P of the mobile station 100. The total power is

 MAX

 If the transmission power exceeds the large transmission power P, as shown in FIG.

 MAX

 Adjusts the transmission power P-DCH and P-EDCH. In general, there are times when data is not transmitted when data is not always transmitted. In addition, a target transmission rate may be achieved even with power smaller than the allocated power. In such a case, unused power can be allocated to physical channels that require the power. Therefore, according to the present embodiment, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 [0115] In the present embodiment, power allocation coefficient γ

 DCH and γ

 It is the power allocating section 131 of the mobile station 100 that determines each of the EDCHs. The power allocating unit 131 calculates a power allocation coefficient γ

 DCH

 After determining each of 、 and γ, the allocated power D— DCH

EDCH

 And allocated power AP—determines EDCH.

 (Example 4 1)

 In the present embodiment, the power allocating unit 131 sets the power allocation coefficients γ and γ

 DCH EDCH

 Number of transport channels ". For example, assume that the number of transport channels corresponding to DCH is M (M is a natural number), and the number of transport channels corresponding to EDCH is N (N is a natural number). If the number M is larger than the number N, the power allocation coefficient γ

 DCH is the power allocation coefficient γ

 It is determined to be larger than EDCH. When the number よ り is larger than the number M, the power allocation coefficient γ becomes larger than the power allocation coefficient γ.

 EDCH DCH

 Is determined as follows. When the numbers N and M are equal, the power allocation coefficient γ and the power allocation coefficient γ

 DCH

 Are set to the same value. For example, the power allocating unit 131 determines that γ: y = M: N

EDCH DCH EDCH

 Thus, the power allocation coefficients γ and γ may be determined.

 DCH EDCH

As described above, according to the present embodiment, when the number M of transport channels transmitted on the DCH is larger than the number N of transport channels transmitted on the EDCH, the allocated power AP—DCH is Power AP—greater than EDCH. Conversely, when the number N is larger than the number M, the allocated power AP-EDCH tends to be larger than the allocated power AP-DCH. In this way, the greater the number of transport channels, the more allocated power is allocated to a physical channel. Can be Therefore, transmission power resources can be allocated among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 (Example 4 2)

 In the present embodiment, the power allocating unit 131 sets the power allocation coefficients γ and γ

 DCH EDCH

 Determined transmission rate ". For example, assume that the transmission rate required for data transmission using DCH is 64 kbps and the transmission rate required for data transmission using EDCH is 128 kbps. At this time, the power allocation coefficient γ is set so that the allocated power AP—EDCH is larger than the allocated power AP DCH.

 EDCH is the power allocation coefficient γ

 It is determined to be larger than DCH. When the transmission rate required for data transmission using DCH is A and the transmission rate required for data transmission using EDCH is B, power allocating section 131 assigns γ

 DCH

 : Power assignment coefficients γ and γ may be determined so that y = A: B.

 EDCH DCH EDCH

 [0119] As described above, power allocation section 131 compares the transmission rates required for the respective physical channels. Then, power allocating section 131 sets power allocation coefficient γ such that the allocated power allocated to the physical channel requiring a large transmission rate increases.

 DCH and γ

 Determine EDCH. Therefore, transmission power resources can be allocated among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

(Example 4 3)

 In the present embodiment, the power allocating unit 131 sets the power allocation coefficients γ and γ

 DCH EDCH

 Determined delay time ". For example, assume that DCH is used for transmitting call data, and EDCH is used for file transfer. At this time, it is desired that the delay time for the call data is shorter than the delay time for the file transfer. Therefore, the power allocation coefficient γ is set so that the allocated power AP—DCH is larger than the allocated power AP—EDCH.

 DCH

 Is the power allocation coefficient γ

 It is determined to be larger than EDCH.

 [0121] As described above, power allocating section 131 compares the delay time required for each physical channel. Then, power allocating section 131 determines power allocation coefficients γ and γ such that the allocated power allocated to the physical channel requiring a small delay time increases.

DCH EDCH Set. Therefore, transmission power resources can be allocated among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 (Example 4 4)

 In the present embodiment, the power allocation unit 131 sets the power allocation coefficients γ and γ

 DCH EDCH

 Degree ". For example, suppose that a transmission rate guarantee service is applied to data transmission by DCH, and a best-ef-to-auto service is applied to data transmission by EDCH. At this time, the priority of data transmission by DCH is set higher than the priority of data transmission by EDCH. Therefore, the power allocation coefficient γ is larger than the power allocation coefficient γ such that the allocated power AP-DCH is larger than the allocated power AP-EDCH.

 DCH EDCH

 It is determined to be.

 [0123] As described above, power allocating section 131 compares the priorities of data transmission by the respective physical channels. Then, power allocating section 131 sets power allocation coefficient γ γ such that the allocated power allocated to the physical channel having the higher priority becomes larger.

 Determine DCH and EDCH

. Therefore, transmission power resources can be distributed among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be used effectively, and the amount of information processing and service quality can be improved.

[0124] (Fifth Embodiment)

 In the fifth embodiment of the present invention, similarly to the fourth embodiment, the power allocation coefficients are set so that the sum (γ + γ) of the power allocation coefficients γ and γ is larger than 1 and smaller than 2.

DCH EDCH DCH EDCH

 The coefficients τ and τ are determined (see Figure 9).

 DCH EDCH

 [0125] In the present embodiment, each of the power allocation coefficients γ and γ is determined.

 DCH EDCH

 Is a power allocation parameter determination unit 330 of the base station controller 300. That is, the power allocation parameter indicates the power allocation coefficients γ and γ. Power allocation parameter determination unit 3

 DCH EDCH

 The power allocation unit 30 of the mobile station 100 transmits the determined power allocation coefficients γ and γ

 DCH EDCH

 Notify one. The power allocation unit 131 uses the notified power allocation coefficients γ and γ

 DCH EDCH

Then, the allocated power AP-DCH and the allocated power AP-EDCH are determined according to the above equation (1). (Example 5-1)

 In the present embodiment, the power allocation parameter determination unit 330 determines the power allocation coefficient γ and

 DCH

 Determine y based on the “number of transport channels”. For example, support DCH

EDCH

 It is assumed that the number of the plurality of transport channels obtained is M (M is a natural number) and the number of the plurality of transport channels corresponding to the EDCH is N (N is a natural number). If number M is larger than number N, power allocation coefficient 0 is determined to be larger than power allocation coefficient 0.

 DCH EDCH

 Is done. If the number N is larger than the number M, the power allocation coefficient γ becomes

 EDCH DCH

 It is determined to be larger than. If the numbers N and M are equal, the power allocation coefficient γ and the power

 DCH

 Force allocation coefficient 0 is set to the same value. For example, the power allocation parameter determination unit 33

 EDCH

 0 determines the power allocation coefficients γ and γ such that γ: y = M: N

DCH EDCH DCH EDCH

 A little.

 As described above, according to the present embodiment, when the number M of transport channels transmitted on the DCH is larger than the number N of transport channels transmitted on the EDCH, the allocated power AP—DCH is Power AP—greater than EDCH. Conversely, when the number N is larger than the number M, the allocated power AP-EDCH tends to be larger than the allocated power AP-DCH. In this way, more allocated power is allocated to a physical channel having a larger number of transport channels. Therefore, transmission power resources can be allocated among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 (Example 5-2)

 In the present embodiment, the power allocation parameter determination unit 330 determines the power allocation coefficient γ and

 DCH

 y is determined based on the "required transmission rate". For example, data using DCH

EDCH

 It is assumed that the transmission speed required for data transmission is 64 kbps, and the transmission speed required for data transmission using EDCH is 128 kbps. At this time, the power allocation coefficient γ is set to be larger than the power allocation coefficient γ such that the allocated power AP-EDCH is larger than the allocated power AP-DCH.

 EDCH DCH

 Is also determined to be large. When the transmission rate required for data transmission using the DCH is A and the transmission rate required for data transmission using the EDCH is B, the power allocation parameter determination unit 330 determines that γ: γ = Α:電力 and the power allocation coefficient γ and

DCH EDCH DCH And γ may be determined.

 EDCH

 [0129] Thus, power allocation parameter determining section 330 compares the transmission rates required for each physical channel. Then, power allocation parameter determining section 330 determines power allocation coefficients γ and γ such that the allocated power allocated to the physical channel requiring a large transmission rate increases. Therefore, to satisfy the required transmission quality,

 DCH EDCH

 Transmission power resources can be distributed among a plurality of physical channels. In addition, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

(Example 5-3)

 In the present embodiment, the power allocation parameter determination unit 330 determines the power allocation coefficient γ and

 DCH

 y is determined based on the required delay time! For example, DCH is call data

EDCH

 EDCH is used for file transfer. At this time, it is desirable that the delay time for call data is shorter than the delay time for file transfer. Therefore, power allocation coefficient γ is determined to be larger than power allocation coefficient γ such that allocated power AP-DCH is larger than allocated power AP-EDCH.

 DCH EDCH

 [0131] As described above, power allocation parameter determination section 330 compares the delay times required for the respective physical channels. Then, power allocation parameter determination section 330 determines power allocation coefficients γ and γ such that the allocated power allocated to the physical channel requiring a short delay time increases. Therefore, to satisfy the required transmission quality,

 DCH EDCH

 Transmission power resources can be distributed among a plurality of physical channels. In addition, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

(Example 5-4)

 In the present embodiment, the power allocation parameter determination unit 330 determines the power allocation coefficient γ and

 DCH

 y is determined based on “priority”. For example, data transmission by DCH

EDCH

It is assumed that the speed guarantee service is applied, and the best F-auto service is applied to data transmission by EDCH. At this time, the priority of data transmission by DCH is set higher than the priority of data transmission by EDCH. Therefore, the allocated power AP—DCH The power allocation coefficient γ is

 DCH

 Number γ

 It is determined to be larger than EDCH.

 [0133] As described above, power allocation parameter determining section 330 compares the priorities of data transmission by the respective physical channels. Then, power allocation parameter determination section 330 determines power allocation coefficient γ γ such that the allocated power allocated to the physical channel having the higher priority becomes larger.

 Determine DCH and EDCH. Therefore, transmission power resources can be allocated among a plurality of physical channels so as to satisfy required transmission quality. Also, transmission power resources can be effectively used, and the amount of information processing and service quality can be improved.

 In the above description, two channels, DCH and EDCH, are shown, but the physical channels transmitted by mobile station 100 are not limited to those corresponding to these two channels. The mobile station 100 may perform communication using multiple physical channels!

Claims

The scope of the claims

 [1] a base station controller,

 A base station connected to the base station controller,

 A mobile station that communicates with the base station using a first physical channel and a second physical channel,

 The mobile station comprises:

 A control unit that controls first transmission using the first physical channel and second transmission using the second physical channel;

 A transmission unit connected to the control unit;

 With

 The base station controller notifies the mobile station via a gijgd base station of a plurality of first TFCs (Transport Format Combination) used in the first transmission as ITFCS (Transport Format Combination get), and notifies the second Notifying the mobile station via the base station of a plurality of second TFCs used for transmission as second TFCs,

 The control unit determines a first allocated power allocated to the first transmission and a second allocated power allocated to the second transmission, and determines the first allocated power and the first allocated power for the power available to the mobile station. The respective ratios of the second allocated power are represented by γ1 and γ2 (γ1 and 72 are 0 or more and 1 or less),

 The control unit selects one of the first TFCs that can be used with the first allocated power from the first TFCs as a first selection Τ FC, and selects one of the second TFCs that can be used with the second allocated power. , A second selected TFC selected from the second TFCS,

 The transmitting unit executes the first transmission to the base station using the first selected TFC, and executes the second transmission using the second selected TFC.

 Wireless communication system.

[2] The wireless communication system according to claim 1,

 The control unit determines γ1 and γ2 so that the sum of γ1 and γ2 becomes 1, and based on the determined γ1 and γ2, determines the first allocated power and the second allocated power. decide

Wireless communication system.

[3] The wireless communication system according to claim 1,

 The base station controller determines γ1 and γ2 such that the sum of γ1 and γ2 becomes 1, and notifies the determined control unit of the mobile station of the determined γ1 and γ2,

 The control unit determines the first allocated power and the second allocated power based on the notified γ1 and γ2.

 Wireless communication system.

[4] The wireless communication system according to claim 1,

 The control unit determines γ1 and γ2 so that the sum power of y1 and γ2 is larger than 2 and smaller than 2, and based on the determined γ1 and γ2, the first allocated power and the Determine the second power allocation

 Wireless communication system.

[5] The wireless communication system according to claim 1,

 The base station control device determines γ1 and γ2 so that the sum of y1 and γ2 is larger than 2 and smaller than 2, and sends the determined γ1 and γ2 to the control unit of the mobile station. Notify,

 The control unit determines the first allocated power and the second allocated power based on the notified γ1 and γ2.

 Wireless communication system.

[6] The wireless communication system according to any one of claims 2 to 5, wherein

 When the number of the plurality of transport channels corresponding to the first physical channel is larger than the number of the plurality of transport channels corresponding to the second physical channel, γ1 is determined to be larger than γ2. To

 Wireless communication system.

[7] The wireless communication system according to any one of claims 2 to 5, wherein

 If the transmission rate required for the first transmission is higher than the transmission rate required for the second transmission, Ύ1 is determined to be greater than 02

 Wireless communication system.

[8] The wireless communication system according to any one of claims 2 to 5, wherein

The delay time required for the first transmission is smaller than the delay time required for the second transmission. In this case, Ύ 1 is determined to be larger than τ 2

 Wireless communication system.

 [9] The wireless communication system according to any one of claims 2 to 5, wherein

 If the priority of the first transmission is higher than the priority of the second transmission, y 1 is determined to be larger than γ 2

 Wireless communication system.

[10] The wireless communication system according to claim 1,

 The base station controller determines a range in which y 1 is determined from 0 to 1, notifies the mobile station of the determined range,

 The control unit determines γ 1 from the range, and determines γ 2 so that the sum of y 1 and γ 2 becomes 1.

 Wireless communication system.

[11] The wireless communication system according to claim 10, wherein

 The base station controller determines the range such that the size of the range has a correlation with the burstiness of communication.

 Wireless communication system.

[12] The wireless communication system according to claim 10 or 11,

 The number of transport channels corresponding to the first physical channel is represented by 表 (Μ is a natural number), and the number of transport channels corresponding to the second physical channel is represented by 力 (Ν is a natural number) )

 The base station control device determines the range such that a median of the range is given by ΜΖ (Μ + Ν).

 Wireless communication system.

[13] The wireless communication system according to claim 12, wherein

 The control unit compares a first data amount transmitted on the first physical channel with a second data amount transmitted on the second physical channel,

When the first data amount is larger than the second data amount, the control unit determines γ1 such that y1 is larger than the median value, and the first data amount is larger than the second data amount. Few In this case, τ1 is determined so that Ύ1 is smaller than the median value.If the first data amount is equal to the second data amount, γ1 is determined so that γ1 becomes the median value. Do

 Wireless communication system.

 [14] The wireless communication system according to any one of claims 1 to 13,

 The control unit calculates a total of a first transmission power required for the first transmission using the first selected TFC and a second transmission power required for the second transmission using the second selected TFC. The control unit, when the sum is larger than the maximum power available to the mobile station, at least one of the first transmission power and the second transmission power so that the sum is equal to the maximum power. Adjust one,

 The transmission unit executes the first transmission and the second transmission using the adjusted first transmission power and the second transmission power.

 Wireless communication system.

 [15] A mobile station communicably connected to the base station controller via the base station,

 A control unit that controls first transmission using the first physical channel and second transmission using the second physical channel;

 A transmission unit connected to the control unit;

 With

 The control unit transmits, from the base station controller, a plurality of first TFCs (Transport Format Combinations) used in the first transmission to iTFC; 5 (Transport Format Combination

Set), and a plurality of second TFCs used in the second transmission are received as a second TFCS,

 The control unit determines a first allocated power allocated to the first transmission and a second allocated power allocated to the second transmission, and determines one of the first TFCs available for the first allocated power. Is selected from the first TFCS, and one of the second TFCs available for the second allocated power is selected from the second TFCS,

The transmitting unit executes the first transmission to the base station using the one first TFC, and executes the second transmission using the one second TFC. Mobile station.

 [16] The mobile station according to claim 15, wherein

 The control unit determines the first allocated power and the second allocated power such that the sum of the first allocated power and the second allocated power is equal to available power.

 Mobile station.

 [17] The mobile station according to claim 15, wherein

 The control unit determines the first allocated power and the second allocated power such that the sum of the first allocated power and the second allocated power is larger than available power.

 Mobile station.

 [18] A base station control device communicably connected to a mobile station via a base station, wherein the mobile station performs a first transmission using a first physical channel and uses a second physical channel. Performing a second transmission using the first transmission power, and determining a first allocation power allocated to the first transmission and a second allocation power allocated to the second transmission. In the first transmission, select J "F and u'ransport Format and ombination) as the first TFCS (Transport Format Combination Set) force, and use the TFC that can be used with the second allocated power and used in the second transmission. Select the second TFCS force,

 The base station controller,

 A TFCS decision unit,

 A power allocation parameter determining unit,

 A transmission unit connected to the TFCS determination unit and the power allocation parameter determination unit,

 The TFCS determining unit determines the first TFCS and the second TFCS,

 The power allocation parameter determination unit determines a ratio of each of the first allocated power and the second allocated power to power available to the mobile station,

 The transmitting unit notifies the mobile station of the determined first TFCS, the second TFCS, and the ratio via the base station.

 Base station controller.

[19] A base station controller, a base station connected to the base station controller, and a first physical channel. A wireless communication method in a wireless communication system comprising a mobile station that communicates with the base station using a mobile station and a second physical channel.

 (A) The base station control device, the plurality of first TFs used in the first transmission by the first physical channel (Transport Format Combination), as the first fFCS (Transport Format Combination Set), the base station Notifying the mobile station via

(B) a step in which the base station controller notifies the mobile station via the base station of a plurality of second TFCs used in the second transmission on the second physical channel as the second TFCs;

 (C) the mobile station determines a first allocated power allocated to the first transmission and a second allocated power allocated to the second transmission,

 (D) the mobile station selects one of the first TFCs that can be used with the first allocated power from the first TFCS as a first selected TFC,

 (E) the mobile station selects one of the second TFCs that can be used with the second allocated power from the second TFCS as a second selected TFC,

 (F) the mobile station executes the first transmission to the base station using the first selected TFC, and executes the second transmission using the second selected TFC;

 A wireless communication method comprising: