CN104105211B

CN104105211B - Transmission dispatching method and equipment

Info

Publication number: CN104105211B
Application number: CN201310401083.0A
Authority: CN
Inventors: 倪浩; 高秋彬
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2013-04-15
Filing date: 2013-09-05
Publication date: 2018-01-19
Anticipated expiration: 2033-09-05
Also published as: WO2014169794A1; CN104105211A

Abstract

The embodiment of the invention discloses a kind of transmission dispatching method and equipment, it is related to wireless communication field, for improving coordinate multipoint CoMP transmission performance.In the present invention, after the channel information for the user terminal that center cooperative node is sent according to each cooperative base station is transmitted scheduling, obtain carrying out data transmission dispatching corresponding to each scheduling resource, for cooperative base station and/or determining the schedule information of configured transmission, and the schedule information is sent to corresponding cooperative base station, the schedule information and the channel condition information CSI for the user terminal being most recently received that cooperative base station is sent according to center cooperative node, determine data transmission parameters.CoMP transmission performance can be improved using the present invention.

Description

Transmission dispatching method and equipment

Technical field

The present invention relates to wireless communication field, more particularly to a kind of transmission dispatching method and equipment.

Background technology

Long Term Evolution strengthens（Long term evolution-advance, LTE-A）In system, covered to reduce cell Lid edge user terminal（UE）Adjacent area interference, improve cell boundary user terminal experience, employ coordinate multipoint （Coordinated-multiple-point, CoMP）Transmission technology.Cooperative multipoint transmission technology is separated on geographical position Multiple transmission point（Transmission point, TP）Between cooperation.Common, multiple transmission point refers to different districts Base station, or multiple long distance wireless heads that the base station of a cell controls with it（Remote radio head, RRH）.Coordinate multipoint Transmission technology can be divided into down collaboration transmission and up joint receives.Down collaboration transmission is main to be divided into two kinds of transmission plans again： Cooperative scheduling/cooperative beam figuration（Coordinated scheduling/coordinated beamforming, CS/CB）With Combined Treatment（Joint processing, JP）.A transfer point in CS/CB transmission in multiple transmission point is sent out to user terminal Useful signal is sent, other transfer points reduce the interference to the user terminal as far as possible by combined dispatching and wave beam forming.At joint Reason scheme can be divided into joint transmission again（Joint transmission, JT）With dynamic transmission point selection（dynamic point Selection, DPS）Transmission.Multiple transmission point sends useful signal to same user terminal simultaneously in JT, so as to enhance use The reception signal of family terminal.The transfer point of switching at runtime user terminal, is always selected to this from cooperation transmission point in DPS transmission The optimal point transmission user terminal signal of user terminal.These cooperative multipoint transmission schemes can be combined with each other.Can be with It is silent with reference to dynamic transmission point（Dynamic blanking, DB）Scheme, some biographies are dynamically set on some running time-frequency resources Defeated point does not send signal.

In order to realize the CoMP transmission to a user terminal, network is that user terminal configures a measuring assembly, the survey One or more base stations are included in duration set.Network is that user terminal configures one or more letters to each base station in measuring assembly Channel state information（Channel state information, CSI）Process.User terminal is configured according to each CSI processes and carried out CSI is reported.

Base station, which is reported according to the CSI of user terminal in the scheduling process for carrying out cooperative multipoint transmission, to be needed to be exchanged with each other largely Information and data.In LTE/LTE-A systems, information and data interaction between base station pass through back haul link（backhaul）It is real It is existing.The Backhaul rate of information throughput and transmission delay are by realizing backhaul physical link property in itself and protocol stack Time delay determines.If being connected between base station by the big physical link of capacity, as optical fiber is directly connected to, backhaul information transfer Speed is high（Such as Gbps magnitudes）.If being connected between base station by the less physical link of capacity, such as wireless transmission link, The backhaul rate of information throughput is low（Such as 1Mbps or lower）.The upper interactive information propagation delay times of Backhaul are mainly by physics Chain circuit transmission time delay and protocol stack time delay cause, and different backhaul propagation delay time difference is larger, generally non-ideal Backhaul propagation delay times are likely to be breached 10ms or bigger.A variety of backhaul physical connection sides are there may be in real network Formula, the information in CoMP cooperative schedulings between base station, which exchanges, consider nonideal backhaul.

Down collaboration multi-point is realized, the CSI dependent on the user terminal that base station obtains to each cooperation point.CSI information Including channel quality indication (CQI) information（Channel quality indicator, CQI）, pre-coding matrix instruction（precoding Matrix indicator, PMI）And order instruction（Rank indicator, RI）Deng.Under user terminal is sent using each base station Row reference signal measures base station to the channel of user terminal, and to its serving cell（That is the cell of user terminal access）Feed back it The channel information measured.The serving cell of user terminal receives the CSI information of feedback, and cooperative scheduling is carried out with cooperation cell And/or cooperation precoding, so as to realize cooperation transmission.The method that minizone carries out cooperative scheduling and/or the precoding scheduling that cooperates Two kinds can be divided into：1）Non-central cooperative scheduling；2）Center cooperative scheduling.

The non-central no Centroid of scheduling carries out global optimization scheduling., can in order to reach the result close to global optimization The method using iteration scheduling between base station can be needed, may need to carry out multiple schedule information interaction between cooperative base station, such as Fig. 1 institutes Show.If backhaul time delays are larger between base station, non-central scheduling, which carries out multiple schedule information interaction, can make scheduling delay excessive, Cause channel information out-of-date, so as to influence transmission performance.

Preferable backhaul is considered in the CoMP researchs of LTE-A versions 11.In the case of preferable backhaul, center The key step of scheduling includes：

Each cooperative base station gives the CSI information transfers of the user terminal for all access base stations being most recently received in one Heart cooperative node（Central coordination node, CCN）；

CCN is the user terminal centralized dispatching time domain and frequency domain resource of all cooperative base stations, and to scheduled running time-frequency resource User terminal calculate precoding；

The scheduling of each user terminal and pre-encoding results are sent to each associated base stations by CCN；

Base station is that user terminal transmits data according to the scheduling of resource and pre-encoding results received.

The method of above-mentioned central dispatching needs cooperative base station that the CSI information of the user terminal of respective all accesses is all transmitted To CCN, and, it is necessary to all scheduling results are transmitted to each base station respectively, as shown in Figure 2 after CCN scheduling.Non-ideal In the case of backhaul, scheduling delay（Each cooperative base station transmits scheduling of resource of the CSI information until receiving CCN transmissions to CCN Time interval between precoding information）At least 2 times of backhaul propagation delay times.In addition, if CCN in cooperation set Backhaul time delays to each cooperative base station are different, in order to allow a scheduling result in cooperation is gathered while apply, collaboration set Scheduling delay in conjunction is 2 times of maximum backhaul propagation delay times in set.For typical backhaul time delays（10ms）, Above-mentioned central dispatching flow caused scheduling delay substantially 20ms in the case of non-ideal backhaul.This is to existing center Dispatching method means that each cooperation point carries out CoMP transmission according to the CSI reported before user 20ms in cooperation set.CSI information Out-of-date problem can have a strong impact on CoMP transmission performance.Influence of the out-of-date problem of CSI information to transmission performance mainly includes following three Individual aspect：

First, scheduling of resource is inaccurate；

Second, pre-coding matrix selection is improper；

3rd, link circuit self-adapting is inaccurate.

Pre-coding matrix selection and link circuit self-adapting are more sensitive to the out-of-date problem of CSI information in terms of above three.

To sum up, the central dispatching method of existing cooperative multipoint transmission is designed for preferable backhaul, non-ideal Due to the influence of backhaul propagation delay times in the case of backhaul, scheduling of resource, pre-coding matrix selection, link circuit self-adapting Accuracy can all be affected, so as to influence CoMP transmission performance.

The content of the invention

The embodiment of the present invention provides a kind of transmission dispatching method and equipment, for improving CoMP transmission performance.

A kind of transmission dispatching method, this method include：

Center cooperative node receives the channel information for the user terminal that each cooperative base station is sent, whole according to the user received The channel information at end is transmitted scheduling；

Center cooperative node schedule information according to corresponding to transmitting and scheduling result obtains each scheduling resource；

The schedule information is sent to corresponding cooperative base station by center cooperative node, so that cooperative base station receives according to nearest To user terminal channel condition information CSI and the schedule information determine data transmission parameters.

A kind of transmission dispatching method, this method include：

Cooperative base station sends the channel information of the user terminal under the cooperative base station to center cooperative node；

Cooperative base station receives the schedule information that center cooperative node is sent；

The schedule information and the letter for the user terminal being most recently received that cooperative base station is sent according to center cooperative node Channel state information CSI, determines data transmission parameters.

A kind of center cooperative equipment, the center cooperative equipment include：

Transmitting and scheduling unit, the channel information of the user terminal sent for receiving each cooperative base station, according to what is received The channel information of user terminal is transmitted scheduling；

Information acquisition unit, for schedule information corresponding to obtaining each scheduling resource according to transmitting and scheduling result；

Transmitting element, for the schedule information to be sent into corresponding cooperative base station, so that cooperative base station is according to most proximity The channel condition information CSI of the user terminal received and the schedule information determine data transmission parameters.

A kind of cooperative base station, the cooperative base station include：

Transmitting element, for sending the channel information of the user terminal under the cooperative base station to center cooperative node；

Receiving unit, the schedule information sent for receiving center cooperative node；

Processing unit, for the schedule information sent according to center cooperative node and the user terminal being most recently received Channel condition information CSI, determine data transmission parameters.

In scheme provided in an embodiment of the present invention, the letter for the user terminal that center cooperative node is sent according to each cooperative base station After road information is transmitted scheduling, schedule information corresponding to each scheduling resource is obtained, and corresponding to the schedule information is sent to Cooperative base station, the schedule information and the CSI for the user terminal being most recently received that cooperative base station is sent according to center cooperative node, really Determine data transmission parameters, it is seen then that this programme center cooperative node only need to be to cooperative base station transmitting portion schedule information, cooperative base station The newest CSI directly reported according to the partial scheduling information and combination user terminal carries out data transmission dispatching and/or determined Data transmission parameters, whole schedule informations need to be sent to cooperative base station with center cooperative node in the prior art, user terminal needs CSI is reported into center cooperative node CSI is transmitted to cooperative base station by center cooperative node again, cooperative base station is according to whole Schedule information carries out data transmission comparing with CSI, and this programme reduces influence of the backhaul time delays to CoMP central dispatchings, enters And improve CoMP transmission performance.

Brief description of the drawings

Fig. 1 is the information exchange schematic diagram of non-central scheduling of the prior art；

Fig. 2 is the information exchange schematic diagram of central dispatching of the prior art；

Fig. 3 is method flow schematic diagram provided in an embodiment of the present invention；

Fig. 4 is another method schematic flow sheet provided in an embodiment of the present invention；

Fig. 5 is cooperative equipment structural representation in center provided in an embodiment of the present invention；

Fig. 6 is cooperative base station structural representation provided in an embodiment of the present invention.

Embodiment

In order to improve CoMP transmission performance, the embodiment of the present invention provides a kind of transmission dispatching method.

Referring to Fig. 3, the embodiment of the present invention is directed to the transmission dispatching method that CCN sides provide, comprised the following steps：

Step 30：Center cooperative node receives the channel information for the user terminal that each cooperative base station is sent；According to receiving The channel information of user terminal be transmitted scheduling；

Step 31：Center cooperative node schedule information according to corresponding to transmitting and scheduling result obtains each scheduling resource；

Step 32：The schedule information is sent to corresponding cooperative base station by center cooperative node so that cooperative base station according to The channel condition information CSI for the user terminal being most recently received and the schedule information determine data transmission parameters.Specifically can be with The schedule information corresponding cooperative base station is not sent to for space-time in the schedule information.

Specifically, the channel information for the user terminal that the cooperative base station that center cooperative node receives is sent can include being somebody's turn to do The channel condition information that user terminal under cooperative base station reports（CSI）, or including whole according to the user under the cooperative base station The CSI information statistics for holding the CSI reported to obtain, such as, prelisting in the CSI that cooperative base station repeatedly reports according to user terminal Code matrix instruction（Pre-coding Matrix Indicator, PMI）Statistical channel correlation matrix, by the channel correlation matrix Channel information as user terminal is sent to center cooperative node.

Specifically, the specific implementation of step 31 can use one of following four kinds of modes：

First, for each scheduling resource, if not dispatching any one cooperative base station silence on the scheduling resource（I.e. Any data are not transmitted）, and only scheduled on the scheduling resource data transfer and/or CoMP user of non-CoMP user terminal The non-CoMP data transfers of terminal, then schedule information corresponding to the scheduling resource is sky, or including representing without scheduling CoMP The information of user terminal, or it is included on the scheduling resource information for the user terminal for being each cooperative base station scheduling（Such as with The identification information of family terminal）；Accordingly, step 32 is implemented as：It is space-time in schedule information corresponding to the scheduling resource, Schedule information corresponding to the scheduling resource is not sent for all cooperative base stations；In schedule information bag corresponding to the scheduling resource Include when representing the information without scheduling CoMP user terminal, send and represented without dispatching CoMP user terminal to each cooperative base station Information；Be included in schedule information corresponding to the scheduling resource on the scheduling resource be the scheduling of each cooperative base station user terminal During information, the information of the user terminal that is corresponding cooperative base station scheduling is sent on the scheduling resource respectively to each cooperative base station.

Second, for each scheduling resource, if being that at least one cooperative base station scheduled CoMP use on the scheduling resource The CS/CB transmission of family terminal, then schedule information corresponding to the scheduling resource includes：For carrying out CS/ to the CoMP user terminal First schedule information of the cooperative base station of CB transmission, the second scheduling for the base station in the measuring assembly of the CoMP user terminal Information and the 3rd schedule information for other base stations in addition to the base station in the measuring assembly of the CoMP user terminal, its In：

The identification information of first schedule information including the CoMP user terminal and it is expressed as CS/CB transmission and is done Disturb the disturbance state information of the cooperative base station of avoidance；Second schedule information includes available pre-coding matrix set, disabled It is at least one in pre-coding matrix set, transmission power constraint information, or including transmitting pre-coding matrix used, order letter It is at least one in breath, transmission power constraint information；3rd schedule information is sky, or including representing without scheduling CoMP user The information of terminal, or it is included in the information of the user terminal on the scheduling resource for other base station schedulings.

Further, the first schedule information can also include：Pre-coding matrix, the order letter of the CoMP user terminal of scheduling It is at least one in breath, channel quality indicator CQI information, modulation coding information MCS.

Accordingly, step 32 is implemented as：First schedule information is sent to the CoMP user terminal and carries out CS/ The cooperative base station of CB transmission, the cooperative base station being sent to the second schedule information in the measuring assembly of the CoMP user terminal, will 3rd schedule information is sent to other cooperative base stations in addition to the base station in the measuring assembly of CoMP user terminal.

Here, whether the disturbance state information of base station refers to for representing the base station to the data transfer of CoMP user terminal Produce the information of interference.The disturbance state information that CS/CB transmission has carried out the cooperative base station of jam avoidance is expressed as, specifically can be with It is that the CS/CB that can be expressed as transmitting the identification information for the cooperative base station for having carried out jam avoidance for CS/CB or making an appointment is passed Be input into gone jam avoidance cooperative base station other information.

3rd, for each scheduling resource, if being that at least one cooperative base station scheduled CoMP use on the scheduling resource The DPS/DPB of family terminal is transmitted and be scheduled other cooperative base stations as DPS/DPB transmission silences, then corresponding to the scheduling resource Schedule information includes：For silence cooperative base station the 4th schedule information, for the CoMP user terminal carry out DPS/DPB 5th schedule information of the cooperative base station of transmission and for except silence cooperative base station and to the CoMP user terminal carry out DPS/ 6th schedule information of other base stations outside the cooperative base station of DPB transmission；Accordingly, it is implemented as in step 32：Will 4th schedule information is sent to the cooperative base station of silence, the 5th schedule information is sent to CoMP user terminal progress DPS/ The cooperative base station of DPB transmission, the 6th schedule information is sent to except silent cooperative base station and carried out to the CoMP user terminal Other cooperative base stations outside the cooperative base station of DPS/DPB transmission；

If on the scheduling resource it is the DPS/DPB transmission and not that at least one cooperative base station scheduled CoMP user terminal It is silent for DPS/DPB transmission to dispatch other cooperative base stations, then schedule information corresponding to the scheduling resource includes being directed to and removed to this CoMP user terminal carries out the 7th schedule information of other cooperative base stations outside the cooperative base station of DPS/DPB transmission；Accordingly, It is implemented as in step 32：7th schedule information is sent to except silent cooperative base station and entered to the CoMP user terminal Other cooperative base stations outside the cooperative base station of row DPS/DPB transmission；

Wherein：

4th schedule information includes representing information silent on the scheduling resource；5th schedule information includes representing silent Cooperative base station disturbance state information；6th schedule information is sky, or including representing without scheduling CoMP user terminal Information, or it is other cooperative base stations to be included on the scheduling resource（It is i.e. whole except silent cooperative base station and to the CoMP user End carries out other cooperative base stations outside the cooperative base station of DPS/DPB transmission）The information of the user terminal of scheduling；7th scheduling letter Cease for sky, or including representing without the information for dispatching CoMP user terminal, or it is other associations to be included on the scheduling resource Make base station（Other cooperative base stations i.e. in addition to the cooperative base station of DPS/DPB transmission is carried out to the CoMP user terminal）Scheduling The information of user terminal.

Further, the 5th schedule information also includes：The identification information of the CoMP user terminal of scheduling, the CoMP user are whole It is at least one in the pre-coding matrix at end, rank information, CQI information, MCS.

Further, on the scheduling resource it is DPS/DPB that at least one cooperative base station scheduled CoMP user terminal When transmission and other unscheduled cooperative base stations are that DPS/DPB transmission is silent, schedule information corresponding to the scheduling resource also includes For the following extraneous information for the cooperative base station that DPS/DPB transmission is carried out to the CoMP user terminal：The CoMP user of scheduling is whole It is at least one in the identification information at end, the pre-coding matrix of the CoMP user terminal, rank information, CQI information, MCS；Accordingly , the center cooperative node in step 32, which also needs to the extraneous information being sent to the CoMP user terminal, carries out DPS/DPB The cooperative base station of transmission.

Here, the disturbance state information of silent cooperative base station is represented, can be specifically the mark of silent cooperative base station Information or the other information that can represent silent cooperative base station made an appointment.

4th, for each scheduling resource, if being that multiple cooperative base stations scheduled CoMP user end on the scheduling resource The JT at end, then schedule information corresponding to the scheduling resource include：Cooperation base for carrying out from JT transmission to the CoMP user terminal The 8th schedule information stood；8th schedule information includes the identification information of the CoMP user terminal and represented to the CoMP user Terminal carries out the signal condition information of the cooperative base station of JT transmission.Accordingly, it is implemented as in step 32：By the 8th scheduling Information is sent to the cooperative base station that JT transmission is carried out to the CoMP user terminal.

Further, the 8th schedule information also includes：Pre-coding matrix, rank information, the CQI of the CoMP user terminal of scheduling It is at least one in information, MCS.

Here, the signal condition information of base station refers to be used for represent whether the base station to CoMP user terminal sends useful letter Number information.The signal condition information for the cooperative base station for representing to carry out JT transmission to CoMP user terminal can be specifically to CoMP User terminal carries out the identification information of the cooperative base station of JT transmission or that makes an appointment can represent to carry out to CoMP user terminal The other information of the cooperative base station of JT transmission.

In this method, center cooperative node can pass through back haul link（backhaul）Receive the use that each cooperative base station is sent The channel information of family terminal；Schedule information is sent to cooperative base station by backhaul.

Referring to Fig. 4, the embodiment of the present invention is directed to the transmission dispatching method that cooperative base station side provides, comprised the following steps：

Step 40：Cooperative base station sends the channel information of the user terminal under the cooperative base station to center cooperative node；

Step 41：Cooperative base station receives the schedule information that center cooperative node is sent；

Step 42：The schedule information that cooperative base station is sent according to center cooperative node and the user being most recently received are whole The CSI at end, determines data transmission parameters.Here, the CSI for the user terminal that cooperative base station receives may come from user end End, can be from the CSI that can be reported between other cooperative base stations, namely cooperative base station with interactive user terminal.

Specifically, cooperative base station sends the channel of the user terminal under the cooperative base station to center cooperative node in step 40 Information, specific implementation can be as follows：

Cooperative base station receives the CSI that the user terminal under the cooperative base station reports, and is given using the CSI as reporting channel information Center cooperative node；Or

Cooperative base station receives the CSI that the user terminal under the cooperative base station repeatedly reports, and the CSI repeatedly reported according to this is obtained To CSI information statistics, center cooperative node is given using the CSI information statistics as reporting channel information.Such as cooperative base station PMI statistical channel correlation matrixes in the CSI repeatedly reported according to user terminal, using the channel correlation matrix as user terminal Channel information be sent to center cooperative node.

Specifically, the specific implementation of step 42 can use one of following five kinds of modes：

First, for each scheduling resource, if the schedule information that cooperative base station receives is included in scheduling resource up-regulation The identification information of the user terminal of degree and the signal condition information and/or disturbance state information for not including other cooperative base stations, and The user terminal is the served user terminals of the cooperative base station, then being determined according to the CSI for the user terminal being most recently received should Cooperative base station used configured transmission when carrying out unicast to the user terminal on the scheduling resource, including precoding square Battle array, CQI, MCS information etc.；Or

If the schedule information that cooperative base station receives is included in the identification information for the user terminal dispatched on the scheduling resource With the signal condition information and/or disturbance state information of other cooperative base stations, and the user terminal be the cooperative base station service User terminal, then obtained from the CSI for the user terminal being most recently received and the signal condition information and/or disturbance state letter Consistent CSI is ceased, and determines that the cooperative base station carries out CoMP biographies on the scheduling resource to the user terminal according to the CSI of acquisition Configured transmission used in defeated, including pre-coding matrix, CQI, MCS information etc.；Signal condition is not included in the schedule information During information, this base station is transmitted base station by the cooperative base station.

Here, to being obtained from the CSI for the user terminal being most recently received and the signal condition information and/or interference shape The consistent CSI of state information, is illustrated：It is included in the schedule information that cooperative base station receives on the scheduling resource and dispatches User terminal identification information and other cooperative base stations signal condition information when, it is the user to illustrate other cooperative base stations The signal transmission base station of terminal, then other cooperative base stations conduct is obtained from the CSI for the user terminal being most recently received should The CSI of the user terminal during signal transmission base station of user terminal；It is included in the tune in the schedule information that cooperative base station receives When the identification information and the disturbance state information of other cooperative base stations of the user terminal dispatched in degree resource, illustrate other cooperations Base station is to have carried out jam avoidance or silent base station for the CoMP transmission of the user terminal, then from the user being most recently received Obtained in the CSI of terminal other cooperative base stations carried out jam avoidance or it is silent when the user terminal CSI；In cooperative base station The schedule information received is included in the identification information for the user terminal dispatched on the scheduling resource and the letter of other cooperative base stations When number status information and disturbance state information, it is the signal transmission of the user terminal to illustrate base station corresponding to the signal condition information Base station, base station corresponding to the disturbance state information are to have carried out jam avoidance or the base of silence for the CoMP transmission of the user terminal Stand, then it is whole as the user that base station corresponding to the signal condition information is obtained from the CSI for the user terminal being most recently received End signal transmission base station and the disturbance state information corresponding to base station carried out jam avoidance or it is silent when the user terminal CSI.

Second, for each scheduling resource, if the schedule information that cooperative base station receives is included in scheduling resource up-regulation The identification information of the user terminal of degree and the signal condition information of other cooperative base stations and/or disturbance state information, and the user Terminal is not the served user terminals of the cooperative base station, then is obtained from the CSI for the user terminal being most recently received and the letter Number status information and/or the consistent CSI of disturbance state information, determine the cooperative base station in the scheduling resource according to the CSI of acquisition On to the user terminal carry out configured transmission used in CoMP transmission, including pre-coding matrix, CQI, MCS information etc.；Institute State when not including signal condition information in schedule information, this base station is transmitted base by the cooperative base station Stand.

3rd, for each scheduling resource, if the schedule information that cooperative base station receives includes representing that the cooperative base station exists Silent information on the scheduling resource, then the cooperative base station on the scheduling resource without data transfer.

4th, for each scheduling resource, if cooperative base station does not receive any schedule information for the scheduling resource Or the schedule information that cooperative base station receives includes（Or only include）The information without scheduling CoMP user terminal is represented, then is cooperated Base station is according to the CSI of the user terminal being most recently received, for the non-CoMP user terminal under the cooperative base station or not in other tune Spend in resource and dispatch the CoMP user terminal of CoMP transmission, dispatch unicast and determine transmission ginseng used in unicast Number, including pre-coding matrix, CQI, MCS information etc..

5th, for each scheduling resource, if the schedule information that cooperative base station receives includes available pre-coding matrix collection Conjunction and/or unavailable pre-coding matrix set, then data transfer of the cooperative base station determination on the scheduling resource is available using this Pre-coding matrix in pre-coding matrix set and/or without using the pre-coding matrix in the unavailable pre-coding matrix set. Specifically, if the schedule information that cooperative base station receives includes available pre-coding matrix set, it is determined that on the scheduling resource Data transfer using the pre-coding matrix in the available pre-coding matrix set, if the schedule information bag that cooperative base station receives Unavailable pre-coding matrix set is included, then cooperative base station determines that the data transfer on the scheduling resource is unavailable pre- without using this Pre-coding matrix in encoder matrix set, that is, use in addition to the pre-coding matrix in the unavailable pre-coding matrix set Other pre-coding matrixes；If the schedule information that cooperative base station receives includes available pre-coding matrix set and unavailable precoding Set of matrices, then cooperative base station it is pre- in the available pre-coding matrix set to determine that data transfer on the scheduling resource uses Encoder matrix and without using the pre-coding matrix in the unavailable pre-coding matrix set.

In this method, cooperative base station can send channel information by backhaul to center cooperative node；Pass through Backhaul receives the schedule information that center cooperative node is sent.

CCN and the interaction flow of cooperative base station are as follows：

Step 1：Cooperative base station sends the channel information of the user terminal under the cooperative base station to center cooperative node；

Step 2：Center cooperative node receives the channel information for the user terminal that each cooperative base station is sent；According to receiving The channel information of user terminal be transmitted scheduling；Letter is dispatched according to corresponding to transmitting and scheduling result obtains each scheduling resource Breath；The schedule information is not sent to corresponding cooperative base station for space-time in obtained schedule information so that cooperative base station according to The channel condition information CSI for the user terminal being most recently received and the schedule information determine data transmission parameters；

Step 3：Cooperative base station receives the schedule information that center cooperative node is sent；

The schedule information that cooperative base station is sent according to center cooperative node and the user terminal that is most recently received CSI, determine data transmission parameters.

With reference to specific embodiment, the present invention will be described：

Embodiment one：

The present embodiment is implemented for a kind of CS/CB scheduling of information interacting method of non-ideal backhaul central dispatching Example；

Hypothesis below is done to system：

There are 3 base stations to carry out cooperation transmission in system：Respectively there are 2 service users base station 1, base station 2 and the base station of base station 3,3 Terminal, the UE1 under base station 1（CoMP user terminal, measuring assembly include base station 1 and base station 3）And UE2；UE3 under base station 2 （CoMP user terminal, measuring assembly include base station 2 and base station 3）And UE4；UE5 and UE6 under base station 3.Without indicating It is non-CoMP user terminal for CoMP user terminal.

There is 1 scheduling resource above-mentioned 3 base stations；

Information exchange flow between cooperative base station and CCN is as follows：

Step 1：All user terminals report CSI, the CSI that each base station is reported each user terminal by backhaul to pass It is defeated by CCN.

Step 2：CCN is 3 base station scheduling data transfers, UE1 CS/CB transmission is dispatched for base station 1, base station 3 is carried out Jam avoidance；UE4 unicast is scheduled for base station 2；UE5 unicast is scheduled for base station 3；

CCN includes to the transmitting scheduling information of base station 1, the schedule information：The user terminal for being UE1 is dispatched in user identification domain Identify " 001 "；Disturbance state information is to represent the mark " 11 " of base station 3；

CCN does not transmit any schedule information to base station 2；

CCN includes to the transmitting scheduling information of base station 3, the schedule information：Pre-coding matrix set can be used.

Step 3：3 base stations receive schedule information respectively.

The scheduling user that base station 1 notifies according to CCN identifies " 001 ", determines that UE1 for scheduling user, believes according to disturbance state Base station 3 identifies " 11 " and determines that base station 3 is jam avoidance base station in breath, and the CSI reported recently according to UE1 is calculated on scheduling resource The information such as pre-coding matrix and CQI used in carrying out data transmission；

Base station 2 is scheduled according to UE3 and the UE4 CSI reported recently, specifically scheduled UE3 unicast, and use The CSI that UE3 is reported recently calculates carries out data transmission the used information such as pre-coding matrix and CQI on scheduling resource；

Base station 3 is scheduled according to UE5 and the UE6 CSI reported recently, and without using available pre-coding matrix set outside Pre-coding matrix；Scheduled UE5 unicast, wherein pre-coding matrix in available pre-coding matrix set according to UE5 Nearest CSI reports selection, and CQI is calculated according to selected pre-coding matrix.

Embodiment two：

The present embodiment is implemented for a kind of DPS/DPB scheduling of information interacting method of non-ideal backhaul central dispatching Example；

System postulation is identical with embodiment one.

Step 1：All user terminals report CSI, the CSI that each base station is reported each user terminal by backhaul to believe Breath is transferred to CCN.

Step 2：CCN scheduling base stations 1 are silent, and UE4 unicast is dispatched for base station 2, and UE1 DPS/ is dispatched for base station 3 DPB is transmitted；

CCN includes to the transmitting scheduling information of base station 1, the schedule information：Represent that on the information field of silence be " 1 "；

CCN includes to the transmitting scheduling information of base station 2, the schedule information：The user terminal for being UE4 is dispatched in user identification domain Identify " 100 "；

CCN includes to the transmitting scheduling information of base station 3, the schedule information：The user terminal for being UE1 is dispatched in user identification domain It is the mark " 01 " of expression base station 1 in mark " 001 ", disturbance state information field；

Step 3：3 base stations receive schedule information respectively.

Base station 1 is according to the mark on silencing information domain without data transfer；

Base station 2 is according to scheduling user identification domain, and it is target terminal user to determine UE4, and the CSI reported recently according to UE4 is counted Calculation carries out data transmission the used information such as pre-coding matrix and CQI on scheduling resource；

Base station 3 is according to scheduling user identification domain, and it is target terminal user to determine UE1, because UE1 is not the service of this base station User terminal, and CCN does not have notification signal status information, the transfer point for determining the transmission is this base station, and reading interference state is believed The mark " 01 " for base station 1 is ceased, represents that base station 1 is silent；This corresponding base station is obtained in the CSI for the UE1 that base station 3 notifies from base station 1 The silent pre-coding matrix in transmission, base station 1 and CQI information are as schedule information.

Embodiment three：

The present embodiment is a kind of JT scheduling embodiments of the information interacting method of non-ideal backhaul central dispatching；

It is all identical with embodiment one in addition to herein below in system postulation：UE1 is CoMP user terminal, measuring assembly Include base station 1, base station 2, base station 3；UE3 is non-CoMP user terminal；

Step 2：CCN scheduling base stations 1 and base station 2 are that UE1 does JT transmission, and base station 3 is that UE5 does unicast；

CCN is the transmitting scheduling information of base station 1, and the schedule information includes：The user terminal for being UE1 is dispatched in user identification domain It is the mark " 01 " of expression base station 1 and the mark " 10 " of expression base station 2 in mark " 001 ", signal condition information field；

CCN is the transmitting scheduling information of base station 2, and the schedule information includes：The user terminal for being UE1 is dispatched in user identification domain It is the mark " 01 " of expression base station 1 and the mark " 10 " of expression base station 2 in mark " 001 ", signal condition information field；

CCN does not transmit any schedule information for base station 3.

Step 3：3 base stations receive schedule information respectively.

According to user identification domain is dispatched, it is target terminal user to determine UE1 for base station 1, according to signal condition information field, it is determined that JT transmission is done in this base station and base station 2, and base station 1 is pre- when the CSI calculation base stations 1 and base station 2 reported recently using UE1 does JT transmission Encoder matrix and CQI are as schedule information；

Base station 2 is according to scheduling user identification domain, and it is target terminal user to determine UE1, because UE1 is not the service of this base station User terminal, determine that the signal condition information of the transmission identifies " 01 " and this Base Station Identification " 10 " for base station 1；Base station 2 is from base station 1 It is that UE1 is the CQI of JT transmission and the pre-coding matrix conduct of base station 2 that respective base station 1 and base station 2 are obtained in the UE1 of notice CSI Schedule information.

Base station 3 is scheduled according to UE5 and the UE6 CSI reported recently, scheduled UE5 unicast, according to UE5 most The CSI closely reported calculates schedule information.

Referring to Fig. 5, the embodiment of the present invention provides a kind of center cooperative equipment, and the center cooperative equipment includes：

Transmitting and scheduling unit 50, the channel information of the user terminal sent for receiving each cooperative base station；According to receiving The channel information of user terminal be transmitted scheduling；

Information acquisition unit 51, for schedule information corresponding to obtaining each scheduling resource according to transmitting and scheduling result；

Information transmitting unit 52, for the schedule information to be sent into corresponding cooperative base station so that cooperative base station according to The channel condition information CSI for the user terminal being most recently received and the schedule information determine data transmission parameters.

Further, described information acquiring unit 51 is used for：

For each scheduling resource, if any one cooperative base station silence is not dispatched on the scheduling resource, and at this The data transfer of non-cooperating multiple spot CoMP user terminal and/or the non-CoMP numbers of CoMP user terminal are only scheduled on scheduling resource According to transmission, then schedule information corresponding to the scheduling resource is sky, or including representing the information without scheduling CoMP user terminal, Or it is included on the scheduling resource information for the user terminal for being each cooperative base station scheduling.

Further, described information acquiring unit 51 is used for：

For each scheduling resource, if being that at least one cooperative base station scheduled CoMP user terminal on the scheduling resource Cooperative scheduling CS/ cooperative beam figurations CB transmission, then schedule information corresponding to the scheduling resource includes：For being used to the CoMP Family terminal carries out the first schedule information of the cooperative base station of CS/CB transmission, in the measuring assembly of the CoMP user terminal Second schedule information of base station and for other base stations in addition to the base station in the measuring assembly of the CoMP user terminal Three schedule informations, wherein：

First schedule information includes the identification information of the CoMP user terminal and is expressed as CS/CB transmission progress The disturbance state information of the cooperative base station of jam avoidance；Second schedule information include available pre-coding matrix set, It is at least one in disabled pre-coding matrix set, transmission power constraint information, or including transmitting precoding used It is at least one in matrix, rank information, transmission power constraint information；3rd schedule information is sky, or including representing do not have There is the information of scheduling CoMP user terminal, or be included in the letter of the user terminal on the scheduling resource for other base station schedulings Breath.

Further, the first schedule information that described information acquiring unit 51 obtains also includes：The CoMP user of scheduling is whole It is at least one in the pre-coding matrix at end, rank information, channel quality indicator CQI information, modulation coding information MCS.

Further, described information acquiring unit 51 is used for：

For each scheduling resource, if being that at least one cooperative base station scheduled CoMP user terminal on the scheduling resource Dynamic transmission point selection DPS/ dynamic transmission point silences DPB transmission and scheduled other cooperative base stations for the DPS/DPB transmission Silence, then schedule information corresponding to the scheduling resource include：For silence cooperative base station the 4th schedule information, for this CoMP user terminal carry out DPS/DPB transmission cooperative base station the 5th schedule information and for except silence cooperative base station and to The CoMP user terminal carries out the 6th schedule information of other base stations outside the cooperative base station of DPS/DPB transmission；If in the tune It is that at least one cooperative base station scheduled the DPS/DPB transmission of CoMP user terminal and other unscheduled cooperative base stations in degree resource Silence is transmitted for the DPS/DPB, then schedule information corresponding to the scheduling resource includes being directed to removing and carried out to the CoMP user terminal 7th schedule information of other base stations outside the cooperative base station of DPS/DPB transmission；Wherein：

4th schedule information includes representing information silent on the scheduling resource；5th schedule information includes Represent the disturbance state information of silent cooperative base station；6th schedule information is sky, or including representing not dispatch The information of CoMP user terminal, or it is except the cooperative base station of silence and to the CoMP user terminal to be included on the scheduling resource Carry out the information of the user terminal of other cooperative base stations scheduling outside the cooperative base station of DPS/DPB transmission；7th scheduling Information for sky, or including represent without scheduling CoMP user terminal information, or be included on the scheduling resource for except to The CoMP user terminal carries out the letter of the user terminal of other cooperative base stations scheduling outside the cooperative base station of DPS/DPB transmission Breath.

Further, the 5th schedule information that described information acquiring unit 51 obtains also includes：

The identification information of CoMP user terminal, the pre-coding matrix of the CoMP user terminal, rank information, the CQI letters of scheduling It is at least one in breath, MCS.

Further, on the scheduling resource it is DPS/DPB that at least one cooperative base station scheduled CoMP user terminal When transmission and other unscheduled cooperative base stations are that DPS/DPB transmission is silent, the scheduling that described information acquiring unit 51 obtains Schedule information also includes corresponding to resource：

Further, described information acquiring unit 51 is used for：

For each scheduling resource, if on the scheduling resource being the connection that multiple cooperative base stations scheduled CoMP user terminal Transmission JT is closed, then schedule information corresponding to the scheduling resource includes：Cooperation for carrying out from JT transmission to the CoMP user terminal 8th schedule information of base station；8th schedule information includes the identification information of the CoMP user terminal and represents to use to the CoMP Family terminal carries out the signal condition information of the cooperative base station of JT transmission.

Further, the 7th schedule information that described information acquiring unit 51 obtains also includes：

It is at least one in the pre-coding matrix of the CoMP user terminal of scheduling, rank information, CQI information, MCS.

Further, the transmitting and scheduling unit 50 is used for：Each cooperative base station is received by back haul link backhaul to send out The channel information of the user terminal sent；

Described information transmitting element 52 is used for：Schedule information is sent to cooperative base station by backhaul.

Referring to Fig. 6, the embodiment of the present invention provides a kind of cooperative base station, and the cooperative base station includes：

Transmitting element 60, for sending the channel information of the user terminal under the cooperative base station to center cooperative node；

Receiving unit 61, the schedule information sent for receiving center cooperative node；

Processing unit 62, it is whole for the schedule information sent according to center cooperative node and the user being most recently received The channel condition information CSI at end, determines data transmission parameters.

Further, the transmitting element 60 is used for：

The CSI that the user terminal under the cooperative base station reports is received, is cooperated using the CSI as reporting channel information to center Node；Or

The CSI that the user terminal under the cooperative base station repeatedly reports is received, CSI letters are obtained according to the CSI repeatedly reported Statistic is ceased, center cooperative node is given using the CSI information statistics as reporting channel information.

Further, the processing unit 62 is used for：

For each scheduling resource, if the schedule information received is included in the user terminal dispatched on the scheduling resource Identification information and the signal condition information and/or disturbance state information for not including other cooperative base stations, and the user terminal is to be somebody's turn to do The served user terminals of cooperative base station, then determine the cooperative base station in the tune according to the CSI for the user terminal being most recently received Spend used configured transmission when carrying out unicast to the user terminal in resource；Or

If the schedule information received is included in identification information and other associations for the user terminal dispatched on the scheduling resource Make the signal condition information and/or disturbance state information of base station, and the user terminal is the served user terminals of the cooperative base station, Then obtained from the CSI for the user terminal being most recently received consistent with the signal condition information and/or disturbance state information CSI, and determine that the cooperative base station carries out CoMP transmission to the user terminal on the scheduling resource and used according to the CSI of acquisition Configured transmission；When not including signal condition information in the schedule information, using the cooperative base station as the user terminal Signal transmits base station.

Further, the processing unit 62 is used for：

For each scheduling resource, if the schedule information received is included in the user terminal dispatched on the scheduling resource The signal condition information and/or disturbance state information of identification information and other cooperative base stations, and the user terminal is not the cooperation The served user terminals of base station, then obtained from the CSI for the user terminal being most recently received with the signal condition information and/or The consistent CSI of disturbance state information, determine that the cooperative base station is entered on the scheduling resource to the user terminal according to the CSI of acquisition Configured transmission used in row CoMP transmission；When not including signal condition information in the schedule information, using this base station as The signal transmission base station of the user terminal.

Further, the processing unit 62 is used for：

For each scheduling resource, if the schedule information received includes representing that the cooperative base station is quiet on the scheduling resource Silent information, then without data transfer on the scheduling resource.

Further, the processing unit 62 is used for：

For each scheduling resource, if not receiving any schedule information or the cooperative base station reception for the scheduling resource The schedule information arrived includes representing the information without scheduling CoMP user terminal, then according to the user terminal being most recently received CSI, the CoMP user of CoMP transmission is dispatched for the non-CoMP user terminal under the cooperative base station or not on other scheduling resources Terminal, dispatch unicast and determine configured transmission used in unicast.

Further, the processing unit 62 is used for：

For each scheduling resource, if the schedule information received includes available pre-coding matrix set and/or unavailable Pre-coding matrix set, it is determined that can be with pre- in pre-coding matrix set described in the data transfer use on the scheduling resource Encoder matrix and/or without using the pre-coding matrix in the unavailable pre-coding matrix set.

Further, the transmitting element 60 sends the channel by back haul link backhaul to center cooperative node Information；

The receiving unit 61 receives the schedule information of center cooperative node transmission by backhaul.

To sum up, beneficial effects of the present invention include：

In scheme provided in an embodiment of the present invention, the letter for the user terminal that center cooperative node is sent according to each cooperative base station After road information is transmitted scheduling, schedule information corresponding to each scheduling resource is obtained, and corresponding to the schedule information is sent to Cooperative base station, the schedule information and the CSI for the user terminal being most recently received that cooperative base station is sent according to center cooperative node, really Determine data transmission parameters, it is seen then that center cooperative node only need to be to cooperative base station transmitting portion schedule information in this programme, and cooperate base The newest CSI for standing according to the partial scheduling information and directly reporting with reference to user terminal carries out data transmission scheduling and/or really Determine data transmission parameters, whole schedule informations, user terminal need to be sent to cooperative base station with center cooperative node in the prior art Need CSI reporting center cooperative node and CSI is transmitted to cooperative base station by center cooperative node again, cooperative base station is according to complete Ministry dispatching information carries out data transmission comparing with CSI, and this programme reduces influence of the backhaul time delays to CoMP central dispatchings, And then improve CoMP transmission performance.

The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.

These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent Select embodiment and fall into having altered and changing for the scope of the invention.

Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims

1. a kind of transmission dispatching method, it is characterised in that this method includes：

Center cooperative node receives the channel information for the user terminal that each cooperative base station is sent, according to the user terminal received Channel information is transmitted scheduling；

The schedule information is sent to corresponding cooperative base station by center cooperative node, so that cooperative base station is according to being most recently received The channel condition information CSI of user terminal and the schedule information determine data transmission parameters；

Wherein, center cooperative node schedule information according to corresponding to transmitting and scheduling result obtains each scheduling resource, specific bag Include：

For each scheduling resource, if any one cooperative base station silence is not dispatched on the scheduling resource, and in the scheduling The non-CoMP data of data transfer and/or CoMP user terminal that non-cooperating multiple spot CoMP user terminal is only scheduled in resource pass Defeated, then schedule information corresponding to the scheduling resource is sky, or including representing the information without scheduling CoMP user terminal, or It is included on the scheduling resource information for the user terminal for being each cooperative base station scheduling；Or

For each scheduling resource, if on the scheduling resource being the association that at least one cooperative base station scheduled CoMP user terminal The CS/ cooperative beam figurations CB that works as dispatcher is transmitted, then schedule information corresponding to the scheduling resource includes：For whole to the CoMP user End carries out the first schedule information of the cooperative base station of CS/CB transmission, for the base station in the measuring assembly of the CoMP user terminal The second schedule information and for other base stations in addition to the base station in the measuring assembly of the CoMP user terminal the 3rd adjust Spend information；Or

For each scheduling resource, if being that at least one cooperative base station scheduled the dynamic of CoMP user terminal on the scheduling resource State transmission point selection DPS/ dynamic transmission point silences DPB is transmitted and be scheduled other cooperative base stations as DPS/DPB transmission silences, Then schedule information corresponding to the scheduling resource includes：The 4th schedule information for the cooperative base station of silence, for the CoMP User terminal carry out DPS/DPB transmission cooperative base station the 5th schedule information and for except silence cooperative base station and to this CoMP user terminal carries out the 6th schedule information of other base stations outside the cooperative base station of DPS/DPB transmission；If in the scheduling It is that at least one cooperative base station scheduled the DPS/DPB transmission of CoMP user terminal and other unscheduled cooperative base stations are in resource DPS/DPB transmission is silent, then schedule information corresponding to the scheduling resource includes being directed to removing and carried out to the CoMP user terminal 7th schedule information of other base stations outside the cooperative base station of DPS/DPB transmission；Or

For each scheduling resource, if being that multiple cooperative base stations scheduled the joint of CoMP user terminal and pass on the scheduling resource Defeated JT, then schedule information corresponding to the scheduling resource include：Cooperative base station for carrying out from JT transmission to the CoMP user terminal The 8th schedule information；

Wherein, the identification information of first schedule information including the CoMP user terminal and be expressed as the CS/CB transmit into Gone jam avoidance cooperative base station disturbance state information；Second schedule information includes available pre-coding matrix collection It is at least one in conjunction, disabled pre-coding matrix set, transmission power constraint information, or including transmitting used prelist It is at least one in code matrix, rank information, transmission power constraint information；3rd schedule information is sky, or including representing The information of CoMP user terminal is not dispatched, or is included on the scheduling resource for the user terminal of other base station schedulings Information；4th schedule information includes representing information silent on the scheduling resource；5th schedule information includes table Show the disturbance state information of the cooperative base station of silence；6th schedule information is sky, or including representing without scheduling CoMP The information of user terminal, or it is to be carried out except the cooperative base station of silence and to the CoMP user terminal to be included on the scheduling resource The information of the user terminal of other cooperative base stations scheduling outside the cooperative base station of DPS/DPB transmission；7th schedule information For sky, or including representing the information without scheduling CoMP user terminal, or be included on the scheduling resource for except to this CoMP user terminal carries out the information of the user terminal of other cooperative base stations scheduling outside the cooperative base station of DPS/DPB transmission； 8th schedule information includes the identification information of the CoMP user terminal and represents to carry out JT transmission to the CoMP user terminal The signal condition information of cooperative base station.

2. the method as described in claim 1, it is characterised in that first schedule information also includes：The CoMP user of scheduling It is at least one in the pre-coding matrix of terminal, rank information, channel quality indicator CQI information, modulation coding information MCS.

3. the method as described in claim 1, it is characterised in that the 5th schedule information also includes：

The identification information of CoMP user terminal of scheduling, the pre-coding matrix of the CoMP user terminal, rank information, CQI information, It is at least one in MCS.

4. the method as described in claim 1, it is characterised in that on the scheduling resource be that at least one cooperative base station scheduled When the DPS/DPB transmission of CoMP user terminal and other unscheduled cooperative base stations are that DPS/DPB transmission is silent, the scheduling resource Corresponding schedule information also includes：

5. the method as described in claim 1, it is characterised in that the 8th schedule information also includes：

6. the method as described in any in claim 1-5, it is characterised in that center cooperative node passes through back haul link Backhaul receives the channel information for the user terminal that each cooperative base station is sent；Sent and dispatched to cooperative base station by backhaul Information.

7. a kind of transmission dispatching method, it is characterised in that this method includes：

The schedule information and the channel shape for the user terminal being most recently received that cooperative base station is sent according to center cooperative node State information CSI, determines data transmission parameters；

Wherein, cooperative base station is sent according to center cooperative node the schedule information and the user terminal that is most recently received CSI, data transmission parameters are determined, specifically included：

For each scheduling resource, if the schedule information that cooperative base station receives is included in the user's end dispatched on the scheduling resource The identification information at end and the signal condition information and disturbance state information for not including other cooperative base stations, and the user terminal is to be somebody's turn to do The served user terminals of cooperative base station, then determine the cooperative base station in the tune according to the CSI for the user terminal being most recently received Spend used configured transmission when carrying out unicast to the user terminal in resource；Or

If the schedule information that cooperative base station receives be included in the user terminal dispatched on the scheduling resource identification information and its The signal condition information and/or disturbance state information of his cooperative base station, and the user terminal is the service user of the cooperative base station Terminal, then obtained from the CSI for the user terminal being most recently received and the signal condition information and/or disturbance state information one The CSI of cause, and determine that the cooperative base station carries out CoMP transmission institute on the scheduling resource to the user terminal according to the CSI of acquisition The configured transmission used；When not including signal condition information in the schedule information, the cooperative base station regard this base station as this The signal transmission base station of user terminal；Or

For each scheduling resource, if the schedule information that cooperative base station receives is included in the user's end dispatched on the scheduling resource The identification information at end and the signal condition information of other cooperative base stations and/or disturbance state information, and the user terminal is not this The served user terminals of cooperative base station, then obtained from the CSI for the user terminal being most recently received and the signal condition information And/or the CSI that disturbance state information is consistent, determine the cooperative base station on the scheduling resource to the user according to the CSI of acquisition Terminal carries out configured transmission used in CoMP transmission；When not including signal condition information in the schedule information, the cooperation Base station is transmitted using this base station as the signal of the user terminal in base station；Or

For each scheduling resource, if cooperative base station does not receive any schedule information or cooperative base station for the scheduling resource The schedule information received includes representing the information without CoMP user terminal is dispatched, then cooperative base station is according to being most recently received The CSI of user terminal, CoMP transmission is dispatched for the non-CoMP user terminal under the cooperative base station or not on other scheduling resources CoMP user terminal, scheduling unicast simultaneously determines configured transmission used in unicast.

8. method as claimed in claim 7, it is characterised in that the cooperative base station sends the cooperation base to center cooperative node The channel information of user terminal under standing, is specifically included：

Cooperative base station receives the CSI that the user terminal under the cooperative base station reports, using the CSI as reporting channel information to center Cooperative node；Or

Cooperative base station receives the CSI that the user terminal under the cooperative base station repeatedly reports, and the CSI repeatedly reported according to this is obtained CSI information statistics, center cooperative node is given using the CSI information statistics as reporting channel information.

9. the method as described in any in claim 7-8, it is characterised in that cooperative base station by back haul link backhaul to Center cooperative node sends the channel information；The schedule information of center cooperative node transmission is received by backhaul.

10. a kind of center cooperative equipment, it is characterised in that the center cooperative equipment includes：

Transmitting and scheduling unit, the channel information of the user terminal sent for receiving each cooperative base station, according to the user received The channel information of terminal is transmitted scheduling；

Information transmitting unit, for the schedule information to be sent into corresponding cooperative base station, so that cooperative base station is according to most proximity The channel condition information CSI of the user terminal received and the schedule information determine data transmission parameters；

Wherein, described information acquiring unit is used for：

Wherein, the identification information of first schedule information including the CoMP user terminal and be expressed as the CS/CB transmit into Gone jam avoidance cooperative base station disturbance state information；Second schedule information includes available pre-coding matrix collection It is at least one in conjunction, disabled pre-coding matrix set, transmission power constraint information, or including transmitting used prelist It is at least one in code matrix, rank information, transmission power constraint information；3rd schedule information is sky, or including representing The information of CoMP user terminal is not dispatched, or is included on the scheduling resource for the user terminal of other base station schedulings Information；

4th schedule information includes representing information silent on the scheduling resource；5th schedule information includes representing The disturbance state information of silent cooperative base station；6th schedule information is sky, or including representing to use without scheduling CoMP The information of family terminal, or it is to be carried out except the cooperative base station of silence and to the CoMP user terminal to be included on the scheduling resource The information of the user terminal of other cooperative base stations scheduling outside the cooperative base station of DPS/DPB transmission；7th schedule information For sky, or including representing the information without scheduling CoMP user terminal, or be included on the scheduling resource for except to this CoMP user terminal carries out the information of the user terminal of other cooperative base stations scheduling outside the cooperative base station of DPS/DPB transmission； 8th schedule information includes the identification information of the CoMP user terminal and represents to carry out JT transmission to the CoMP user terminal The signal condition information of cooperative base station.

11. center cooperative equipment as claimed in claim 10, it is characterised in that the first tune that described information acquiring unit obtains Degree information also includes：The pre-coding matrix of the CoMP user terminal of scheduling, rank information, channel quality indicator CQI information, modulation are compiled It is at least one in code information MCS.

12. center cooperative equipment as claimed in claim 10, it is characterised in that the 5th tune that described information acquiring unit obtains Degree information also includes：

13. center cooperative equipment as claimed in claim 10, it is characterised in that on the scheduling resource be at least one cooperation When the DPS/DPB transmission of base station scheduling CoMP user terminal and unscheduled other cooperative base stations are that DPS/DPB transmission is silent, Schedule information corresponding to the scheduling resource that described information acquiring unit obtains also includes：

14. center cooperative equipment as claimed in claim 10, it is characterised in that the 7th tune that described information acquiring unit obtains Degree information also includes：

15. the center cooperative equipment as described in any in claim 10-14, it is characterised in that the transmitting and scheduling unit is used In：The channel information for the user terminal that each cooperative base station is sent is received by back haul link backhaul；

Described information transmitting element is used for：The schedule information is sent to cooperative base station by backhaul.

16. a kind of cooperative base station, it is characterised in that the cooperative base station includes：

Processing unit, for the schedule information sent according to center cooperative node and the letter for the user terminal being most recently received Channel state information CSI, determines data transmission parameters；

Wherein, the processing unit is used for：

For each scheduling resource, if the schedule information received is included in the mark for the user terminal dispatched on the scheduling resource Information and the signal condition information and/or disturbance state information for not including other cooperative base stations, and the user terminal is the cooperation The served user terminals of base station, then determine that the cooperative base station provides in the scheduling according to the CSI for the user terminal being most recently received Used configured transmission when carrying out unicast to the user terminal on source；Or

If the schedule information received is included in the identification information and other cooperation bases for the user terminal dispatched on the scheduling resource The signal condition information and/or disturbance state information stood, and the user terminal be the cooperative base station served user terminals, then from The CSI consistent with the signal condition information and/or disturbance state information is obtained in the CSI for the user terminal being most recently received, And determine that the cooperative base station passes used in carrying out CoMP transmission to the user terminal on the scheduling resource according to the CSI of acquisition Defeated parameter；When not including signal condition information in the schedule information, the signal using the cooperative base station as the user terminal Transmit base station；Or

For each scheduling resource, if the schedule information received is included in the mark for the user terminal dispatched on the scheduling resource The signal condition information and/or disturbance state information of information and other cooperative base stations, and the user terminal is not the cooperative base station Served user terminals, then obtained from the CSI for the user terminal being most recently received and the signal condition information and/or interference The CSI of status information accordance, determine that the cooperative base station is carried out on the scheduling resource to the user terminal according to the CSI of acquisition Configured transmission used in CoMP transmission；When not including signal condition information in the schedule information, this base station is regard as this The signal transmission base station of user terminal；Or

For each scheduling resource, if not receiving what is received for any schedule information or cooperative base station of the scheduling resource Schedule information includes representing the information without scheduling CoMP user terminal, then according to the CSI for the user terminal being most recently received, is Non- CoMP user terminal under the cooperative base station or the CoMP user terminal that CoMP transmission is dispatched not on other scheduling resources, are adjusted Degree unicast simultaneously determines configured transmission used in unicast.

17. cooperative base station as claimed in claim 16, it is characterised in that the transmitting element is used for：

The CSI that the user terminal under the cooperative base station reports is received, the CSI is cooperated as reporting channel information to center and saved Point；Or

The CSI that the user terminal under the cooperative base station repeatedly reports is received, CSI information system is obtained according to the CSI repeatedly reported Metering, center cooperative node is given using the CSI information statistics as reporting channel information.

18. the cooperative base station as described in any in claim 16-17, it is characterised in that the transmitting element passes through backhaul chain Road backhaul sends the channel information to center cooperative node.