CN106856622B - Method, device, terminal and base station for acquiring heterogeneous network downlink information - Google Patents
Method, device, terminal and base station for acquiring heterogeneous network downlink information Download PDFInfo
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- CN106856622B CN106856622B CN201510903280.1A CN201510903280A CN106856622B CN 106856622 B CN106856622 B CN 106856622B CN 201510903280 A CN201510903280 A CN 201510903280A CN 106856622 B CN106856622 B CN 106856622B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
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Abstract
The invention provides a method, a device, a terminal and a base station for acquiring heterogeneous network downlink information, and relates to the technical field of communication. The acquisition method is applied to the mobile terminal in the heterogeneous network and comprises the following steps: acquiring a power control strategy of an uplink base station and/or a downlink base station which establishes communication connection with the mobile terminal; determining the sending power and the receiving base station of the downlink query information according to the power control strategy; wherein the downlink query information comprises required downlink channel information; and transmitting the downlink query information to the receiving base station in the working frequency band of the receiving base station according to the transmitting power. The scheme of the invention solves the problem that the user cannot acquire the required downlink information or the acquired downlink information is inaccurate.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a terminal, and a base station for acquiring heterogeneous network downlink information.
Background
The heterogeneous network is composed of macro and micro base stations of different types, the macro base station has high transmitting power and provides large-area network coverage, and the micro base station has low transmitting power and provides high-speed hotspot service. In a heterogeneous network, uplink and downlink access of a user is always a research hotspot. In the conventional method, uplink and downlink transmissions of a user access the same base station, and the accessed base station is selected according to the maximum downlink receiving power of the user. In the homogeneous network, since the transmitting power of each base station is the same, the average receiving power of the downlink of the user is proportional to the path loss between the user and the base station, and therefore the link with the largest downlink receiving power is also the link with the smallest uplink transmission loss. However, in the heterogeneous network, because there are multiple types of base stations and the transmission power is not uniform, the link with the largest downlink reception power is not necessarily the link with the smallest uplink transmission loss, and at this time, the base station with the same uplink access and downlink is no longer the optimal access scheme. On the other hand, different uplink and Downlink service requirements are asymmetric, and an uplink and a Downlink Decoupling (Downlink and uplink Decoupling-DUDe) are adopted to independently select an uplink and a Downlink to further adapt to the network service characteristics.
The uplink and downlink services of the user whose uplink and downlink are not decoupled are transmitted with the same base station, and the information required by the downlink (uplink) can be obtained through uplink (downlink) feedback or estimation. However, for users with decoupled uplink and downlink, as shown in fig. 2, downlink data and uplink data are transmitted through different base stations, and how to acquire downlink channel information through uplink needs to be redesigned. In a conventional manner, since the uplink and the downlink use the same channel, the base station obtains downlink channel information through a training signal or feedback uploaded by a user. For users with uplink and downlink decoupling, if a traditional method is adopted, downlink channel information cannot be obtained under pilot frequency networking, and for same-frequency networking, the downlink channel information may not be accurate enough due to the problems of transmission power and interference.
Disclosure of Invention
The invention aims to provide a method, a device, a terminal and a base station for acquiring downlink information of a heterogeneous network, which can ensure information transmission between the terminal and the downlink base station and enable a user to acquire required downlink channel information more accurately.
In order to achieve the above object, an embodiment of the present invention provides a method for acquiring downlink information of a heterogeneous network, which is applied to a mobile terminal in the heterogeneous network, and includes:
acquiring a power control strategy of an uplink base station and/or a downlink base station which establishes communication connection with the mobile terminal;
determining the sending power and the receiving base station of the downlink query information according to the power control strategy; wherein the downlink query information comprises required downlink channel information;
and transmitting the downlink query information to the receiving base station in the working frequency band of the receiving base station according to the transmitting power.
Wherein, the step of determining the sending power of the downlink query information and the receiving base station according to the power control strategy comprises:
determining the sending power of the downlink query information according to the power control strategy of the uplink base station;
and determining the uplink base station as a receiving base station.
Wherein, the step of determining the sending power of the downlink query information and the receiving base station according to the power control strategy comprises:
determining the sending power of the downlink query information according to the power control strategy of the downlink base station;
and determining the downlink base station as a receiving base station.
Wherein, the step of determining the sending power of the downlink query information and the receiving base station according to the power control strategy comprises:
obtaining a first transmission power of the downlink query information according to a power control strategy of the uplink base station;
obtaining a second sending power of the downlink query information according to a power control strategy of the downlink base station;
determining the maximum transmission power as the transmission power of the downlink query information in the first transmission power and the second transmission power;
and determining the base station to which the power control strategy belongs as a receiving base station according to the power control strategy corresponding to the determined transmission power.
In order to achieve the above object, an embodiment of the present invention further provides a method for acquiring downlink information of a heterogeneous network, which is applied to a base station in the heterogeneous network, and includes:
determining a mobile terminal belonging to an uplink and downlink decoupling user according to uplink and downlink channel quality and service volume reported by the mobile terminal;
when the mobile terminal is an uplink and downlink decoupling user, sending a power control strategy of a base station to the mobile terminal;
and receiving downlink query information sent by the mobile terminal, wherein the downlink query information comprises required downlink channel information.
Wherein the method further comprises:
and when the downlink query information is received and the base station is the uplink base station of the mobile terminal, sending the downlink query information to the downlink base station of the mobile terminal through an interactive interface.
In order to achieve the above object, an embodiment of the present invention further provides an apparatus for acquiring downlink information of a heterogeneous network, which is applied to a mobile terminal in the heterogeneous network, and includes:
an obtaining module, configured to obtain a power control policy of an uplink base station and/or a downlink base station that establishes a communication connection with the mobile terminal;
a first determining module, configured to determine, according to the power control policy, a transmission power of downlink query information and a receiving base station; wherein the downlink query information comprises required downlink channel information;
and the transmission module is used for transmitting the downlink query information to the receiving base station in the working frequency band of the receiving base station according to the sending power.
Wherein the first determining module comprises:
a first determining submodule, configured to determine a sending power of the downlink query information according to a power control policy of the uplink base station;
and the second determining submodule is used for determining the uplink base station as a receiving base station.
Wherein the first determining module comprises:
a third determining submodule, configured to determine a sending power of the downlink query information according to a power control policy of the downlink base station;
and the fourth determining submodule is used for determining the downlink base station as a receiving base station.
Wherein the first determining module comprises:
the first obtaining submodule is used for obtaining a first sending power of the downlink query information according to the power control strategy of the uplink base station;
a second obtaining submodule, configured to obtain a second sending power of the downlink query information according to a power control policy of the downlink base station;
a fifth determining submodule, configured to determine, as the transmit power of the downlink query information, a transmit power with a maximum transmit power in the first transmit power and the second transmit power;
and a sixth determining submodule, configured to determine, according to a power control policy corresponding to the determined transmission power, a base station to which the power control policy belongs as a receiving base station.
In order to achieve the above object, an embodiment of the present invention further provides an apparatus for acquiring downlink information of a heterogeneous network, which is applied to a base station in the heterogeneous network, and includes:
the second determining module is used for determining the mobile terminal belonging to the uplink and downlink decoupling user according to the uplink and downlink channel quality and the service volume reported by the mobile terminal;
a first sending module, configured to send a power control policy of a base station to a mobile terminal when the mobile terminal is an uplink and downlink decoupling user;
and the receiving module is used for receiving downlink query information sent by the mobile terminal, wherein the downlink query information comprises required downlink channel information.
Wherein the method further comprises:
and the second sending module is used for sending the downlink inquiry information to the downlink base station of the mobile terminal through an interactive interface when the downlink inquiry information is received and the base station is the uplink base station of the mobile terminal.
In order to achieve the above object, an embodiment of the present invention further provides a terminal, including the apparatus for acquiring the downlink information of the heterogeneous network.
In order to achieve the above object, an embodiment of the present invention further provides a base station, including the apparatus for acquiring the downlink information of the heterogeneous network.
The technical scheme of the invention has the following beneficial effects:
the method for acquiring the downlink information of the heterogeneous network determines the sending power of the downlink query information and the receiving base station according to the power control strategy of the base station, and sends the downlink query information to the receiving base station more effectively, so that the downlink base station can acquire the downlink query information and feed back downlink information such as downlink channel information required by the mobile terminal, and the mobile terminal can accurately acquire the required downlink information to ensure data transmission.
Drawings
Fig. 1 is a schematic flowchart illustrating steps of a method for acquiring heterogeneous network downlink information applied to a mobile terminal according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of uplink and downlink decoupling;
fig. 3 is a schematic flowchart illustrating steps of a method for acquiring downlink information of a heterogeneous network applied to a base station according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating specific steps of a method for acquiring downlink information of a heterogeneous network applied to a base station according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for acquiring downlink information of a heterogeneous network applied to a mobile terminal according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus for acquiring heterogeneous network downlink information applied to a mobile terminal according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an apparatus for acquiring downlink information of a heterogeneous network applied to a base station according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an apparatus for acquiring downlink information of a heterogeneous network applied to a base station according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a method for acquiring heterogeneous network downlink information, aiming at the problem that a user cannot acquire required downlink channel information or the acquired downlink information is inaccurate in the existing method, and the method can ensure information transmission between a terminal and a downlink base station, so that the user can acquire the required downlink channel information more accurately.
As shown in fig. 1, a method for acquiring downlink information of a heterogeneous network according to an embodiment of the present invention is applied to a mobile terminal in the heterogeneous network, and includes:
and 103, transmitting the downlink query information to the receiving base station in the working frequency band of the receiving base station according to the transmitting power.
It should be noted that, in the heterogeneous network, for the performance of the micro macro base station, a mode of independently selecting uplink and downlink is adopted to further adapt the network service characteristics, as shown in fig. 2, the mobile terminal 1 and the mobile terminal 2 both adopt different base stations as an uplink base station and a downlink base station, respectively, for example, the uplink base station of the mobile terminal 1 is the macro base station, and the downlink base station is the micro base station 1.
The method for acquiring the downlink information of the heterogeneous network is applied to the mobile terminal in the heterogeneous network adopting the mode of independently selecting the uplink and the downlink, and through the step 101 and the step 103, the mobile terminal can acquire the power control strategy of the uplink base station and/or the downlink base station which is connected with the mobile terminal, so that the sending power of the downlink query information can be adjusted and the receiving base station of the downlink query information can be determined according to the acquired power control strategy. The downlink query information is generated by the mobile terminal, and the downlink query information comprises the required downlink channel information. The downlink query information is downlink information required by the mobile terminal to ensure data transmission. And then, according to the determined sending power, transmitting on the determined working frequency band of the receiving base station.
As can be seen from the above, in the method for acquiring downlink information of a heterogeneous network according to the embodiment of the present invention, the sending power of the downlink query information and the receiving base station are determined according to the power control policy of the base station, and the downlink query information is sent to the receiving base station more effectively, so that the downlink base station can acquire the downlink query information and feed back downlink information such as downlink channel information required by the mobile terminal to the downlink query information, thereby ensuring data transmission.
Of course, in the method for acquiring the downlink information of the heterogeneous network according to the embodiment of the present invention, the receiving base station may be the downlink base station, and then the downlink base station performs corresponding downlink information feedback according to the downlink query information after receiving the downlink query information. The receiving base station may also be an uplink base station, and at this time, the uplink base station is further required to forward the downlink query information to the downlink base station of the mobile terminal, and the implementation manner may be to forward the downlink query information by using an interactive interface (such as X2) between the base stations. After receiving the downlink query information, the downlink base station feeds back corresponding downlink information according to the downlink query information.
In the method for acquiring downlink information of a heterogeneous network according to the embodiment of the present invention, both the transmission power of downlink query information and a receiving base station need to be determined according to a power control policy sent by a base station, and if only the power control policy of an uplink base station is acquired in step 101, step 102 includes:
step 1021a, determining the sending power of the downlink query information according to the power control strategy of the uplink base station;
step 1022a, determine that the uplink base station is a receiving base station.
Taking the mobile terminal 1 in fig. 2 as an example, the uplink base station of the mobile terminal 1 is a macro base station, the downlink base station is a micro base station 1, and the mobile terminal 1 acquires the power control policy of the macro base station, so that the mobile terminal 1 may adjust the transmission power according to the power control policy, and use the macro base station as a receiving base station, and then, may transmit downlink query information to the macro base station in the working frequency band where the macro base station is located. Since the downlink inquiry information is to be notified to the downlink base station, the macro base station is an uplink base station of the mobile terminal 1, and after receiving the downlink inquiry information, the macro base station needs to notify the downlink inquiry information to the micro base station 1, which is the downlink base station of the mobile terminal 1, through the X2 interface.
In addition, in another case, in step 101, only the power control policy of the downlink base station may be acquired, and then step 102 includes:
step 1021b, determining the sending power of the downlink query information according to the power control strategy of the downlink base station;
step 1022b, determining the downlink base station as a receiving base station.
Similarly, taking the mobile terminal 1 in fig. 2 as an example, the uplink base station of the mobile terminal 1 is a macro base station, the downlink base station is a micro base station 1, and the mobile terminal 1 acquires the power control policy of the micro base station 1, so that the mobile terminal 1 may adjust the transmission power according to the power control policy, use the micro base station as a receiving base station, and then transmit downlink query information to the micro base station 1 in the operating frequency band where the micro base station 1 is located. Since the micro base station 1 is the downlink base station of the mobile terminal 1, the micro base station 1 does not need to forward the downlink query information after receiving the downlink query information.
Of course, in step 101, the power control strategies of the uplink base station and the downlink base station can also be obtained, then step 102 includes:
step 1021c, obtaining a first sending power of the downlink query information according to the power control strategy of the uplink base station;
step 1022c, obtaining a second transmission power of the downlink query information according to the power control policy of the downlink base station;
step 1023c, determining the maximum transmission power as the transmission power of the downlink query information in the first transmission power and the second transmission power;
step 1024c, determining the base station to which the power control strategy belongs as a receiving base station according to the power control strategy corresponding to the determined transmission power.
Also taking the mobile terminal 1 in fig. 2 as an example, the uplink base station of the mobile terminal 1 is a macro base station, the downlink base station is a micro base station 1, and the mobile terminal 1 acquires the power control strategies of the micro base station 1 and the macro base station respectively, so that the mobile terminal 1 can adjust according to the power control strategies of different base stations to obtain two transmission powers. And in order to ensure the effectiveness of information transmission, the transmission power with relatively high transmission power is selected as the transmission power of the downlink query information. Assuming that the obtained transmission power adjusted by the power control strategy of the micro base station 1 is large, the transmission power adjusted by the power control strategy of the micro base station 1 is used as the transmission power of the downlink query information of the micro base station. For the determination of the receiving base station, considering that the sending power of the downlink query information is adjusted according to the power control strategy of the micro base station 1, the receiving quality of the corresponding micro base station 1 is better than that of the macro base station, and the micro base station 1 can be determined to be the receiving base station. Then, the downlink query information can be transmitted to the micro base station 1 in the operating frequency band where the micro base station 1 is located. The micro base station 1 is a downlink base station of the mobile terminal 1, and does not need to forward after receiving the downlink query information. If the receiving base station is a macro base station, the macro base station is used as an uplink base station of the mobile terminal 1, and the downlink query information needs to be notified to the downlink base station of the mobile terminal 1, that is, the micro base station 1, through the interactive interface.
When the mobile terminal can acquire the power control policies of the uplink base station and the downlink base station, the method of step 1021a to step 1022a and the method of step 1021b to step 1022b are applicable in addition to the method of determining the transmission power and the reception base station shown in step 1021c to step 1024 c. However, since the manner from step 1021a to step 1022a requires forwarding of the uplink base station, the procedure is complicated, and is preferably used when only the power control policy of the uplink base station is received.
In summary, in the method for acquiring downlink information of a heterogeneous network according to the embodiment of the present invention, the power control policy of the base station can be acquired to adjust the sending power of the downlink query information and the corresponding receiving base station, so that the effectiveness of information sending is improved, and a user can acquire the downlink information to ensure data transmission.
As shown in fig. 3, a method for acquiring downlink information of a heterogeneous network according to an embodiment of the present invention is applied to a base station in the heterogeneous network, and includes:
It should be noted that in the heterogeneous network, uplink and downlink decoupled users select different base stations as the uplink base station and the downlink base station, respectively. Therefore, in step 301, the base station can analyze the uplink channel quality and the traffic volume reported by the mobile terminal received by the base station, and determine whether the mobile terminal belonging to the base station is an uplink and downlink decoupled user.
Then, in step 302, the power control policy of the base station itself is sent to the mobile terminal belonging to the uplink and downlink decoupling users, so that when the mobile terminal wants to send the downlink query information, the mobile terminal can adjust according to the power control policy to obtain the sending power of the downlink query information and whether the base station is used as a receiving base station. The mobile terminal transmits the downlink query information in the operating frequency band of the base station, and then the base station may receive the downlink query information in step 303.
The downlink query information can inform the downlink base station that the mobile terminal needs downlink information, such as the needed downlink channel information, and the downlink base station correspondingly feeds back the downlink information to realize subsequent data transmission. Therefore, the method of the embodiment of the invention can improve the effectiveness of the mobile terminal in sending the downlink query information and ensure the acquisition of the downlink information.
When the base station analyzes the received uplink channel quality and traffic reported by the mobile terminal, the base station can also know the relationship between the base station and the mobile terminal, namely, the uplink base station or the downlink base station of the mobile terminal. If the base station is a downlink base station, corresponding downlink information feedback can be directly carried out according to the received downlink query information, and subsequent functions of data transmission and the like of the mobile terminal are ensured. However, if the base station is an uplink base station, in the above embodiment, as shown in fig. 4, after step 301 to step 303, the method further includes:
The downlink information is confirmed by the downlink base station, so the uplink base station that receives the downlink query information first needs to inform the downlink base station of the mobile terminal of the downlink query information, and the downlink query information can be forwarded by using an interactive interface (such as X2) between the base stations. After receiving the downlink query information, the downlink base station feeds back corresponding downlink information according to the downlink query information.
In summary, in the method for acquiring the downlink information of the heterogeneous network according to the embodiment of the present invention, after determining the mobile terminal that belongs to the uplink and downlink decoupling users, the base station issues its own power control policy to the mobile terminal, so that the mobile terminal determines the sending power and the receiving base station when sending the downlink query information according to the power control policy, thereby ensuring the validity of information sending and further ensuring that the mobile terminal acquires the downlink information to implement data transmission.
As shown in fig. 5, an embodiment of the present invention further provides an apparatus for acquiring downlink information of a heterogeneous network, which is applied to a mobile terminal in the heterogeneous network, and includes:
an obtaining module 501, configured to obtain a power control policy of an uplink base station and/or a downlink base station that establishes a communication connection with the mobile terminal;
a first determining module 502, configured to determine, according to the power control policy, a transmission power of downlink query information and a receiving base station; wherein the downlink query information comprises required downlink channel information;
a transmission module 503, configured to transmit the downlink query information to the receiving base station in the working frequency band of the receiving base station according to the transmission power.
Specifically, as shown in fig. 6, the first determining module 502 includes:
a first determining submodule 5021, configured to determine the transmit power of the downlink query information according to a power control policy of the uplink base station;
a second determining submodule 5022, configured to determine that the uplink base station is a receiving base station.
Wherein the first determining module 502 comprises:
a third determining submodule 5023, configured to determine the transmit power of the downlink query information according to the power control policy of the downlink base station;
a fourth determining submodule 5024, configured to determine that the downlink base station is a receiving base station.
Wherein the first determining module 502 comprises:
a first obtaining sub-module 5025, configured to obtain a first transmit power of the downlink query information according to a power control policy of the uplink base station;
a second obtaining sub-module 5026, configured to obtain a second transmission power of the downlink query information according to a power control policy of the downlink base station;
a fifth determining submodule 5027, configured to determine, as the transmit power of the downlink query information, the transmit power with the largest transmit power in the first transmit power and the second transmit power;
a sixth determining submodule 5028, configured to determine, according to the power control policy corresponding to the determined transmission power, a base station to which the power control policy belongs as a receiving base station.
The device for acquiring the downlink information of the heterogeneous network can acquire the power control strategy of the base station to adjust the sending power of the downlink query information and the corresponding receiving base station, so that the effectiveness of information sending is improved, and a user can acquire the downlink information to ensure data transmission.
It should be noted that, the apparatus is an apparatus to which the above method for acquiring heterogeneous network downlink information applied to a mobile terminal is applied, and an implementation manner of the method for acquiring heterogeneous network downlink information is applicable to the apparatus and can achieve the same technical effect.
The embodiment of the invention also provides a terminal, which comprises the device for acquiring the downlink information of the heterogeneous network.
The terminal can obtain the power control strategy of the base station to adjust the sending power of the downlink query information and the corresponding receiving base station, so that the effectiveness of information sending is improved, and a user can obtain the downlink information to ensure data transmission.
It should be noted that the terminal is a terminal to which the above method for acquiring heterogeneous network downlink information applied to the mobile terminal is applied, and an implementation manner of the method for acquiring heterogeneous network downlink information is applicable to the terminal and can achieve the same technical effect.
As shown in fig. 7, an embodiment of the present invention further provides an apparatus for acquiring downlink information of a heterogeneous network, which is applied to a base station in the heterogeneous network, and includes:
a second determining module 701, configured to determine, according to the uplink and downlink channel quality and the traffic reported by the mobile terminal, a mobile terminal that belongs to an uplink and downlink decoupling user;
a first sending module 702, configured to send a power control policy of a base station to the mobile terminal when the mobile terminal is an uplink and downlink decoupling user;
a receiving module 703 is configured to receive downlink query information sent by the mobile terminal, where the downlink query information includes information of a required downlink channel.
Wherein, as shown in fig. 8, the method further comprises:
a second sending module 704, configured to send the downlink query information to the downlink base station of the mobile terminal through an interactive interface when the downlink query information is received and the base station is the uplink base station of the mobile terminal.
The device for acquiring the downlink information of the heterogeneous network is applied to a base station, and after the mobile terminal belonging to an uplink and downlink decoupling user is judged, the power control strategy of the device is issued to the mobile terminal, so that the transmitting power and the receiving base station when the downlink query information is transmitted are determined by the mobile terminal, the effectiveness of information transmission is ensured, and the mobile terminal is further ensured to acquire the downlink information to realize data transmission.
It should be noted that, the apparatus is an apparatus to which the above method for acquiring heterogeneous network downlink information applied to a base station is applied, and an implementation manner of the method for acquiring heterogeneous network downlink information is applied to the apparatus, and the same technical effect can be achieved.
The embodiment of the invention also provides a base station, which comprises the device for acquiring the downlink information of the heterogeneous network.
After judging the mobile terminal belonging to the uplink and downlink decoupling user, the base station issues a power control strategy of the base station to the mobile terminal, so that the mobile terminal can determine the sending power and the receiving base station when sending the downlink query information according to the power control strategy, the effectiveness of information sending is ensured, and the mobile terminal is further ensured to acquire the downlink information to realize data transmission.
It should be noted that the base station is a base station to which the above method for acquiring heterogeneous network downlink information applied to the base station is applied, and an implementation manner of the method for acquiring heterogeneous network downlink information is applied to the base station, and the same technical effect can be achieved.
It is further noted that the electronic devices described in this specification include, but are not limited to, smart phones, tablets, etc., and that many of the functional components described are referred to as modules in order to more particularly emphasize their implementation independence.
Many of the functional units described in this specification have been labeled as modules, in order to more particularly emphasize their implementation independence.
In embodiments of the present invention, modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
When a module can be implemented by software, considering the level of existing hardware technology, a module that can be implemented by software can build corresponding hardware circuits including conventional very large scale integration (V L SI) circuits or gate arrays and existing semiconductors such as logic chips, transistors, or other discrete components to implement corresponding functions, without considering the cost.
Exemplary embodiments are described below with reference to the drawings. Many different forms and embodiments of the invention may be made without departing from the spirit and teachings of the invention, and therefore, the disclosure should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of elements may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise indicated, a range of values, when stated, includes the upper and lower limits of the range and any subranges therebetween.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A method for acquiring downlink information of a heterogeneous network is applied to a mobile terminal in the heterogeneous network, and is characterized by comprising the following steps:
acquiring a power control strategy of an uplink base station and/or a downlink base station which establishes communication connection with the mobile terminal;
determining the sending power and the receiving base station of the downlink query information according to the power control strategy; wherein the downlink query information comprises required downlink channel information;
transmitting the downlink query information to the receiving base station in the working frequency band of the receiving base station according to the transmitting power;
if the receiving base station is a downlink base station, the downlink base station feeds back corresponding downlink information according to the downlink query information after receiving the downlink query information; and if the receiving base station is an uplink base station, the uplink base station forwards the downlink query information to the downlink base station of the mobile terminal.
2. The method according to claim 1, wherein the step of determining the transmission power of the downlink query information and the receiving base station according to the power control policy comprises:
determining the sending power of the downlink query information according to the power control strategy of the uplink base station;
and determining the uplink base station as a receiving base station.
3. The method according to claim 1, wherein the step of determining the transmission power of the downlink query information and the receiving base station according to the power control policy comprises:
determining the sending power of the downlink query information according to the power control strategy of the downlink base station;
and determining the downlink base station as a receiving base station.
4. The method according to claim 1, wherein the step of determining the transmission power of the downlink query information and the receiving base station according to the power control policy comprises:
obtaining a first transmission power of the downlink query information according to a power control strategy of the uplink base station;
obtaining a second sending power of the downlink query information according to a power control strategy of the downlink base station;
determining the maximum transmission power as the transmission power of the downlink query information in the first transmission power and the second transmission power;
and determining the base station to which the power control strategy belongs as a receiving base station according to the power control strategy corresponding to the determined transmission power.
5. A method for acquiring downlink information of a heterogeneous network is applied to a base station in the heterogeneous network, and is characterized by comprising the following steps:
determining a mobile terminal belonging to an uplink and downlink decoupling user according to uplink and downlink channel quality and service volume reported by the mobile terminal;
when the mobile terminal is an uplink and downlink decoupling user, sending a power control strategy of a base station to the mobile terminal;
receiving downlink query information sent by the mobile terminal, wherein the downlink query information comprises required downlink channel information; if the receiving base station is possibly a downlink base station, after receiving the downlink query information, the downlink base station feeds back corresponding downlink information according to the downlink query information; and if the receiving base station is an uplink base station, the uplink base station forwards the downlink query information to the downlink base station of the mobile terminal.
6. The method for acquiring downlink information of a heterogeneous network according to claim 5, wherein the method further comprises:
and when the downlink query information is received and the base station is the uplink base station of the mobile terminal, sending the downlink query information to the downlink base station of the mobile terminal through an interactive interface.
7. An apparatus for acquiring downlink information of a heterogeneous network, applied to a mobile terminal in the heterogeneous network, is characterized by comprising:
an obtaining module, configured to obtain a power control policy of an uplink base station and/or a downlink base station that establishes a communication connection with the mobile terminal;
a first determining module, configured to determine, according to the power control policy, a transmission power of downlink query information and a receiving base station; wherein the downlink query information comprises required downlink channel information;
a transmission module, configured to transmit the downlink query information to the receiving base station in a working frequency band of the receiving base station according to the transmission power; if the receiving base station is a downlink base station, the downlink base station feeds back corresponding downlink information according to the downlink query information after receiving the downlink query information; and if the receiving base station is an uplink base station, the uplink base station forwards the downlink query information to the downlink base station of the mobile terminal.
8. The apparatus for acquiring downlink information of a heterogeneous network according to claim 7, wherein the first determining module includes:
a first determining submodule, configured to determine a sending power of the downlink query information according to a power control policy of the uplink base station;
and the second determining submodule is used for determining the uplink base station as a receiving base station.
9. The apparatus for acquiring downlink information of a heterogeneous network according to claim 7, wherein the first determining module includes:
a third determining submodule, configured to determine a sending power of the downlink query information according to a power control policy of the downlink base station;
and the fourth determining submodule is used for determining the downlink base station as a receiving base station.
10. The apparatus for acquiring downlink information of a heterogeneous network according to claim 7, wherein the first determining module includes:
the first obtaining submodule is used for obtaining a first sending power of the downlink query information according to the power control strategy of the uplink base station;
a second obtaining submodule, configured to obtain a second sending power of the downlink query information according to a power control policy of the downlink base station;
a fifth determining submodule, configured to determine, as the transmit power of the downlink query information, a transmit power with a maximum transmit power in the first transmit power and the second transmit power;
and a sixth determining submodule, configured to determine, according to a power control policy corresponding to the determined transmission power, a base station to which the power control policy belongs as a receiving base station.
11. An apparatus for acquiring downlink information of a heterogeneous network, applied to a base station in the heterogeneous network, is characterized by comprising:
the second determining module is used for determining the mobile terminal belonging to the uplink and downlink decoupling user according to the uplink and downlink channel quality and the service volume reported by the mobile terminal;
a first sending module, configured to send a power control policy of a base station to a mobile terminal when the mobile terminal is an uplink and downlink decoupling user;
a receiving module, configured to receive downlink query information sent by the mobile terminal, where the downlink query information includes information of a required downlink channel; if the receiving base station is a downlink base station, the downlink base station feeds back corresponding downlink information according to the downlink query information after receiving the downlink query information; and if the receiving base station is an uplink base station, the uplink base station forwards the downlink query information to the downlink base station of the mobile terminal.
12. The apparatus for acquiring downlink information of a heterogeneous network according to claim 11, further comprising:
and the second sending module is used for sending the downlink inquiry information to the downlink base station of the mobile terminal through an interactive interface when the downlink inquiry information is received and the base station is the uplink base station of the mobile terminal.
13. A terminal, characterized by comprising the apparatus for acquiring the downlink information of the heterogeneous network according to any one of claims 7 to 10.
14. A base station, characterized by comprising the apparatus for acquiring downlink information of heterogeneous network according to any one of claim 11 or claim 12.
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| WO2014061001A1 (en) * | 2012-10-21 | 2014-04-24 | Mariana Goldhamer | Improved utilization of the uplink fdd channel |
| CN104919867A (en) * | 2013-12-24 | 2015-09-16 | 华为技术有限公司 | Method and apparatus for sending signal in soft handoff region of unbalanced region of heterogeneous network |
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| WO2014061001A1 (en) * | 2012-10-21 | 2014-04-24 | Mariana Goldhamer | Improved utilization of the uplink fdd channel |
| CN104919867A (en) * | 2013-12-24 | 2015-09-16 | 华为技术有限公司 | Method and apparatus for sending signal in soft handoff region of unbalanced region of heterogeneous network |
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