CN101420260A - Radio electric device node, distributed radio communication base station and communication method therefor - Google Patents
Radio electric device node, distributed radio communication base station and communication method therefor Download PDFInfo
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- CN101420260A CN101420260A CNA2007101637360A CN200710163736A CN101420260A CN 101420260 A CN101420260 A CN 101420260A CN A2007101637360 A CNA2007101637360 A CN A2007101637360A CN 200710163736 A CN200710163736 A CN 200710163736A CN 101420260 A CN101420260 A CN 101420260A
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Abstract
The present invention discloses radio installation nodes, distributed radio communication base stations comprising the radio installation nodes and a communication method thereof, wherein, the radio installation nodes realize data transmitting to the radio installation control nodes in the adjacent radio base station by using different optical wavelengths. The radio installation nodes are positioned in the area covered by the distributed radio communication base station, the radio installation nodes in the edge of the covered area communicate with the radio installation control nodes of two or more adjacent distributed radio communication base stations, and the radio installation nodes are controlled and managed by the radio installation control nodes of the two or more adjacent distributed radio communication base stations. According to the present invention, communication between the radio installation nodes in a radio communication base station and the radio installation control nodes of the adjacent radio communication base stations is realized.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to wireless device node, distributed radio communication base station and communication means thereof.
Background technology
In order to improve the network coverage, raising power system capacity and to reduce cost, cellular carrier is just progressively adopted distributed base station architecture.Two tissues that in the 3G camp, are born: general public radio frequency interface (Common Public Radio Interface, be called for short CPRI) and Open Base Station Architecture (Open Base Station Architecture Initiative, be called for short OBSAI), specialize in the standardization of distributed base station architecture, promote base station of new generation to distributed evolution.Distributed base station is realized separating of baseband portion and radio frequency part, and this can allow base station baseband handle resource-sharing, improves the flexibility of disposing, and the cost that reduces base station system.
CPRI is that Ericsson phone Co., Ltd, Huawei Tech Co., Ltd, Nippon Electric Company, Ltd., Nortel Networks Ltd., Siemens Company initiate a new industry cooperative association setting up, communicating by letter between the wireless device Control Node that the core technology of the general public radio frequency interface of CPRI is used for realizing radio base station and the remote radio devices node.
Fig. 1 shows the basic characteristics of this patent application, it has described a kind of interface, device and method of communicating by letter of being used between the wireless device of radio base station control (REC) node and wireless device (RE) node, wherein, radio base station utilizes a plurality of antenna carrier to receive and send messages by radio interface.REC node and RE node are separated and are coupled by transmission link.
The specific implementation method comprises the steps: to produce control information and user profile, to be transferred to another by transmission link from REC node and RE node.User profile comprises a plurality of data flow, each data flow corresponding to data that antenna is associated at a radio carrier; Control information and user profile are formatted as a plurality of Time Division Multiplexing frames, wherein each TDM frame comprises the control time slot that is used for control information, with a plurality of data slots that are used for user profile, and a plurality of data slot is corresponding to the data flow of one of antenna carrier; And frame is transferred to another node by transmission link.
The distributing architecture of base station has moved on to each antenna port with radio circuit from the base station, allow radio system needn't concentrate on a place.These long-distance radio frequency units (RE) can produce interconnect delay and stationary problem, and central base station is caused interference, technically still have many problems to wait to solve.CPRI serial/deserializer adopts high accuracy to postpone the calibration measurement circuit, and transmission wherein and receiving system phase-locked loop are all independent separately, therefore system need not to add in addition any element, need not to carry out complicated intervention, can accurately measure time of delay, and guarantee that long-distance radio frequency unit and central base station keep synchronously.
For further transmission quantity and the coverage that improves mobile phone, thus the transmission cost of reduction unit data quantity, and an important direction is exactly that remote radio unit (RRU) adopts smart antenna and the multi-input/output antenna that possesses the wave beam forming ability.But these multiaerial systems have stricter requirement to accurate timing, and adopt traditional Logic Circuit Design to be difficult to accurate delay of calibrating between base station and these long-distance radio frequency units.Postpone change in order to ensure following the tracks of little optical fiber to 200ps, the integrated delay calibration measurement of CPRI serial/deserializer circuit can accurately be measured the base station to the optical fiber time of delay between long-distance radio frequency unit and each long-distance radio frequency unit.
Under the distributed base station framework, allowing a plurality of RE communicate by letter with the wireless terminal realization in the mode of diversity is the effective way that further promotes the air interface spectrum efficiency, when wireless terminal is positioned at the edge in the zone that distributed base station covers, in order to reach diversity preferably, need belong to cooperating between the REC of different distributions formula base station, this just require in the current serving BS RE not only the REC in the macrocell of its covering send control and management data and user data, also to send control and management data and user data to the REC in the macrocell that is adjacent.And the interfacing of companies such as Ericsson phone Co., Ltd does not provide interface, device and method that wireless device (RE) node in the radio base station and the wireless device in the adjacent with it radio base station are controlled (REC) enabling communication between nodes.
Therefore, expectation provides interior wireless device (RE) node of radio base station and the adjacent with it interior wireless device of radio base station to control the device and method of (REC) enabling communication between nodes.
Summary of the invention
Technical problem to be solved by this invention is to realize that wireless device (RE) node in the radio base station and the wireless device in the adjacent with it radio base station control the communication between (REC) node, makes the present invention according to this technical problem.
According to an aspect of the present invention, a kind of wireless device (RE) node is provided, comprise physical layer, link layer, and have the management and chain of command service access point, synchronous service accessing points and user's face service access point, wherein, management and the chain of command service access user face data of naming a person for a particular job is linked on the channel that is carried by different wave length.Then, the channel of different wave length carrying is realized wireless device node and the transmission of a plurality of wireless device control (REC) data between nodes, and institute's data packets for transmission is drawn together control and management data and user data.
Wireless device (RE) node will be sent to the control of a plurality of wireless devices control (REC) nodes and management data and format of user data respectively and turn to a plurality of time division multiplexing frames on different wave length, and by specific wavelength described time division multiplexing frame of transmission between wireless device (RE) node and a plurality of wireless device control (REC) node, wherein, each time division multiplexing frame all comprises and is used to control and the time slot of management data and the time slot that is used for user data.
According to a further aspect in the invention, a kind of distributed radio communication base station is provided, it comprises wireless device Control Node and the wireless device node with above-mentioned feature, wherein, the wireless device node is in the distributed radio communication base station overlay area, and is in wireless device node in the fringe region of described overlay area and the wireless device Control Node in two or more adjacent distributions formula radio communication base station communicates.
Wherein, be in the resource of the wireless device node in the fringe region of overlay area and control and the management that working method is subjected to the wireless device Control Node in two or more adjacent distributions formula radio base stations.
According to another aspect of the invention, a kind of communication means of distributed radio communication base station is provided, wherein, distributed radio communication base station comprises wireless device Control Node and the wireless device node that communicates with two or more wireless device Control Node that belong to different distributions formula radio base station, the wireless device node is coupled by the transmission link on the different wave length and two or more wireless device Control Node that belongs to different distributions formula radio base station, wherein, this communication means comprises following processing:: the wireless device node uses different wavelength and described two or more wireless device Control Node that belongs to different distributions formula radio base station to carry out transfer of data, and institute's data packets for transmission is drawn together control and management data and user data; The wireless device node turns to a plurality of time division multiplexing frames with control and management data and format of user data respectively on different wave length; And between wireless device node and a plurality of wireless device Control Node, transmit the time division multiplexing frame by specific wavelength, wherein, each time division multiplexing frame all comprises and is used to control and the time slot of management data and the time slot that is used for user data.
Wherein, control and management data comprise the resource use designation data of current wireless electricity device node.
In addition, use designation data to be transferred to the wireless device Control Node that all need carry out control and management to the wireless device node resource of wireless device node.
Resource uses designation data to comprise at least a in the following data: whole bandwidth of operation of wireless device node, different wireless device Control Node take the frequency resource of wireless device node.And different wireless device Control Node takies the frequency resource of wireless device node and comprises at least a in the following parameter: the shared bandwidth of different wireless device Control Node, different wireless device Control Node are to the holding time of wireless device node specific bandwidth.
Single frequency network structure proposed by the invention and method have the characteristics that are easy to realize simple in structure, both can independent utility, also can be used in combination with mobile communication system, particularly and time division duplex (TDD) when the base station is used in combination, can overcome the not enough problem of transmitting power that the TDD base station exists when realizing that full cell multimedia broadcast covers.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that illustrates according to the radio base station system of prior art;
Fig. 2 is the schematic diagram that illustrates according to radio base station system of the present invention;
Fig. 3 is the flow chart that illustrates according to the communication means of radio communication base station of the present invention; And
Fig. 4 is the schematic diagram that illustrates according to the Microcell combining structure of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
According to wireless device node of the present invention, comprise physical layer, link layer, and have management and chain of command service access point, synchronous service accessing points and user's face service access point, and wherein, management and management of chain of command service access point and chain of command service access point SAP
CMUser face data is linked on the channel that is carried by different wave length, then, the channel of different wave length carrying is realized wireless device node and the transmission of a plurality of wireless device control (REC) data between nodes, and institute's data packets for transmission is drawn together control and management data and user data
The wireless device node will be sent to the control of a plurality of wireless device Control Node and management data and format of user data respectively and turn to a plurality of time division multiplexing frames on different wave length, and between wireless device node and a plurality of wireless device Control Node, transmit the time division multiplexing frame by specific wavelength, wherein, each time division multiplexing frame all comprises and is used to control and the time slot of management data and the time slot that is used for user data.
Fig. 2 is the schematic diagram that illustrates according to radio base station system of the present invention.
With reference to Fig. 2, radio base station system 1 according to the present invention comprises wireless device control (REC) node 102 and wireless device (RE) node 101, this RE node 101 can communicate with two or more wireless device control (REC) nodes that belong to different distributions formula radio base station, and it has the characteristic of above-mentioned wireless device node.
Particularly, wireless device control (REC) node 102 and wireless device (RE) node 101 comprise physical layer (layer one), link layer (layer two) respectively, and have management and chain of command service access point SAP
CM, synchronous service accessing points SAP
S, user's face service access point SAP
IQ
Wherein, physical layer is used to realize between wireless device control (REC) node 102 and wireless device (RE) node 101 and the transmission of the signal between wireless device (RE) node 101; Link layer is used to realize multiplexing, the transmission control to user data, management and control information and synchronizing information.Management and chain of command service access point SAP
CMBe used for user face data is linked into the channel that is carried by different wave length, have the function of optical routing; Synchronous service accessing points SAP
SLink on the different wave length is inserted synchronically controlling information; And user's face service access point SAP
IQLink on the different wave length is uploaded or the download user data.
By to the management and chain of command service access point SAP
CMSend wavelength information realization wireless device (RE) node 101 and control communicating by letter between (REC) node 102 with the wireless device of adjacent distributions formula base station.The route that different wavelength is corresponding different, as shown in Figure 2, by making path 10 4, path 10 5, path 10 6 use different wavelength, realize communicating by letter between the REC of REC, the N of distributed radio base station system of REC, distributed radio base station system 2 of RE and distributed radio base station system 1 in the distributed radio base station system 1.
The wireless device node 101 that is in the fringe region of distributed radio communication base station system 1 overlay area communicates with wireless device Control Node in two or more adjacent distributions formula radio communication base stations, and the resource of this wireless device node 101 and working method are subjected to the control and the management of the wireless device Control Node in two or more adjacent distributions formula radio base stations.
Fig. 3 is the flow chart that illustrates according to the communication means of radio communication base station of the present invention.
With reference to Fig. 3, communication means between the RCE node 102 that the RE node 101 that distributed radio base station system 1 comprises and other distributed radio base station system comprise comprises the steps: S302, RE node 101 uses different wavelength and two or more REC nodes that belongs to different distributions formula radio base station to carry out transfer of data, and institute's data packets for transmission is drawn together control and management data and user data; S304, RE node 101 turn to a plurality of time division multiplexing frames with control and management data and format of user data respectively on different wave length; And S306, between RE node 101 and a plurality of REC node 102, transmit the time division multiplexing frame by specific wavelength, wherein, each time division multiplexing frame all comprises and is used to control and the time slot of management data and the time slot that is used for user data.
Wherein, control and management data comprise the resource use designation data of current RE node 101.
In addition, use designation data to be transferred to the REC node that all need carry out control and management to the wireless device node resource of RE node 101.
Resource uses designation data to comprise at least a in the following data: whole bandwidth of operation of RE, different REC take the frequency resource of RE.And different REC takies the frequency resource of RE and comprises at least a in the following parameter: the shared bandwidth of different REC, different REC are to the holding time of RE specific bandwidth.
Fig. 4 is the schematic diagram that illustrates according to the Microcell combining structure of the embodiment of the invention.
As shown in the figure, Microcell combination A is made up of the Microcell that several wireless contacts cover, this Microcell combination A covers a rule or irregular geographic area, wherein, Microcell A1～the A12 that is in this Microcell combination edge zone, geographic area that A covered adopts RE node described in the invention to realize the covering of Microcell, comprises a REC node among the Microcell combination A.
Microcell combination geographic area that A covered and Microcell combination B, Microcell combination C, Microcell combination D, Microcell make up E, Microcell combination F, the Microcell combination geographic area that G covered is adjacent.In these adjacent Microcell combinations, all there is the REC node.
There is communication link between the REC node in RE node 101 in the Microcell A1～A12 of the Microcell combination edge zone, geographic area that A covered and two or more the adjacent Microcell combination, by these communication links, carry out following communication between the REC node in the Microcell combination that the RE node 101 in Microcell A1～A12 is adjacent: the RE node receives controls and management data, user data from two or more described REC nodes; RE node 101 sends controls and management data, user data to two or more REC nodes.
For example, the RE node among the Microcell A12 can also receive control and management data, user data from the REC node under the adjacent Microcell combination B except the REC node that is subordinated to Microcell combination A receives control and management data, user data; RE node among the Microcell A1 can also receive control and management data, user data from adjacent Microcell combination B, REC node under the Microcell combination C except the REC node that is subordinated to Microcell combination A receives control and management data, user data.
Because the RE node 101 in the Microcell of the edge zone, geographic area that the Microcell combination is covered can be controlled by the REC of adjacent sub-district, when the network that covers was continuously formed in some such Microcells combinations, the RE node in the Microcell of the edge zone of the geographic area that the REC node in the Microcell combination also can be covered adjacent Microcell combination was controlled.
Angle from single Microcell combination, RE node in the Microcell of the edge zone, geographic area that the Microcell combination is covered has enlarged the control range of other Microcell combination, angle from a plurality of Microcell networkings, RE node in the Microcell of the edge zone, geographic area that the Microcell combination is covered has constituted a common control area, the generation of common control area, that has eliminated that traditional Microcell combining structure exists is difficult to realize the problem of diversity between Microcell at cell edge, wireless terminal in common control area can be realized diversity communication easily as the terminal that is positioned at Microcell combination center zone under the control of its service REC node.
The present invention has provided and has been applicable to the baseband processing unit that makes up distributed single frequency network (SFN) radio network and structure and the communication means between the radio frequency unit.Structural support between SFN baseband processing unit and SFN radio frequency unit is the interconnection topology structure flexibly, can make the covering that realizes indoor and outdoor based on the SFN radio network of this structure neatly, can realize synchronously by optical fiber between SFN radio frequency unit, also can realize by the measurement of air interface signals synchronously, when this system applies during, can solve the shortcoming that each radio-frequency channel underpower because of smart antenna exists on omnidirectional covers in Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system.Communication means of the present invention is optimized existing digital transmission technology at the needs of SFN, makes system on the needed service signal of transmission SFN, control signal and measuring-signal, and is more simple efficient.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a wireless device node comprises physical layer, link layer, and has management and chain of command service access point, synchronous service accessing points and user's face service access point, it is characterized in that,
Described management and the chain of command service access user face data of naming a person for a particular job is linked on the channel by different wave length carrying, to realize the transfer of data between described wireless device node and the described a plurality of wireless device Control Node by described channel by the different wave length carrying, institute's data packets for transmission is drawn together control and management data and user data.
2. wireless device node according to claim 1, it is characterized in that, described wireless device node will be sent to the described control of described a plurality of wireless device Control Node and management data and described format of user data respectively and turn to a plurality of time division multiplexing frames on different wave length, and between described wireless device node and described a plurality of wireless device Control Node, transmit described time division multiplexing frame by specific wavelength, wherein, each described time division multiplexing frame all comprises time slot that is used for described control and management data and the time slot that is used for described user data.
3. one kind comprises claim 1 or 2 described wireless device node distribution formula radio communication base stations, described distributed radio communication base station comprises the wireless device Control Node, it is characterized in that, described wireless device node is in the described distributed radio communication base station overlay area, is in wireless device node in the fringe region of described overlay area and the wireless device Control Node in two or more adjacent distributions formula radio communication base station and communicates.
4. distributed radio communication base station according to claim 3, it is characterized in that, be in the resource of the described wireless device node in the described fringe region and control and the management that working method is subjected to the wireless device Control Node in two or more adjacent distributions formula radio base stations.
5. the communication means of a distributed radio communication base station, it is characterized in that, described distributed radio communication base station comprises wireless device Control Node and the wireless device node that communicates with two or more wireless device Control Node that belong to different distributions formula radio base station, described wireless device node is coupled by the transmission link on the different wave length and described two or more wireless device Control Node that belongs to different distributions formula radio base station, wherein, described communication means comprises following processing:
Described wireless device node uses different wavelength and described two or more wireless device Control Node that belongs to different distributions formula radio base station to carry out transfer of data, and institute's data packets for transmission is drawn together control and management data and user data;
Described wireless device node turns to a plurality of time division multiplexing frames with described control and management data and described format of user data respectively on different wave length; And
Between described wireless device node and described a plurality of wireless device Control Node, transmit described time division multiplexing frame by specific wavelength, wherein, each described time division multiplexing frame all comprises time slot that is used for described control and management data and the time slot that is used for described user data.
6. method according to claim 5 is characterized in that, described control and management data comprise the resource use designation data of current wireless electricity device node.
7. method according to claim 6 is characterized in that, uses designation data to be transferred to the wireless device Control Node that all need carry out control and management to described wireless device node the resource of described wireless device node.
8. method according to claim 6, it is characterized in that described resource uses designation data to comprise at least a in the following data: whole bandwidth of operation of wireless device node, different wireless device Control Node take the frequency resource of wireless device node.
9. method according to claim 8, it is characterized in that described different wireless device Control Node takies the frequency resource of wireless device node and comprises at least a in the following parameter: the shared bandwidth of different wireless device Control Node, different wireless device Control Node are to the holding time of wireless device node specific bandwidth.
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| CN 200710163736 CN101420260B (en) | 2007-10-23 | 2007-10-23 | Radio electric device node, distributed radio communication base station and communication method therefor |
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| CN 200710163736 CN101420260B (en) | 2007-10-23 | 2007-10-23 | Radio electric device node, distributed radio communication base station and communication method therefor |
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| CN101420260A true CN101420260A (en) | 2009-04-29 |
| CN101420260B CN101420260B (en) | 2013-06-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143499A (en) * | 2011-03-29 | 2011-08-03 | 电信科学技术研究院 | Method, system and equipment for notifying subframe configuration information, and method, system and equipment for configuring subframe |
| US9615402B2 (en) | 2009-11-24 | 2017-04-04 | Huawei Technologies Co., Ltd. | Base station, network system, and implementation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1330118C (en) * | 2004-02-23 | 2007-08-01 | 华为技术有限公司 | Distributed base stations and data interactive method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9615402B2 (en) | 2009-11-24 | 2017-04-04 | Huawei Technologies Co., Ltd. | Base station, network system, and implementation method |
| US10609598B2 (en) | 2009-11-24 | 2020-03-31 | Huawei Technologies Co., Ltd. | Base station, network system, and implementation method |
| CN102143499A (en) * | 2011-03-29 | 2011-08-03 | 电信科学技术研究院 | Method, system and equipment for notifying subframe configuration information, and method, system and equipment for configuring subframe |
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| CN101420260B (en) | 2013-06-05 |
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