CN104105210A - Method of carrying out CoMP (coordinated-multiple-point) transmission and device - Google Patents
Method of carrying out CoMP (coordinated-multiple-point) transmission and device Download PDFInfo
- Publication number
- CN104105210A CN104105210A CN201310129935.5A CN201310129935A CN104105210A CN 104105210 A CN104105210 A CN 104105210A CN 201310129935 A CN201310129935 A CN 201310129935A CN 104105210 A CN104105210 A CN 104105210A
- Authority
- CN
- China
- Prior art keywords
- transmission
- subscriber equipment
- base station
- csi
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
Abstract
The embodiment of the invention relates to the technical field of wireless communication and particularly relates to a method of carrying out CoMP (coordinated-multiple-point) transmission and a device, so as to solve the problems that in an unideal backhaul condition in the prior art, accuracy of precoding matrix selection and link self adaptation is seriously influenced as the backhaul transmission delay time is long and the CoMP transmission performance is thus seriously influenced. The method of the embodiment of the invention comprises the step: when a target base station needs to carry out CoMP transmission to user equipment managed by other base stations, and CoMP transmission is carried out to the user equipment according to the received CSI of the user equipment sent by the other base stations. According to the embodiment of the invention, time is saved, time delay is narrowed, influences on accuracy of precoding matrix selection and link self adaptation are reduced, and the CoMP transmission performance is improved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method and apparatus that carries out CoMP transmission.
Background technology
Long Term Evolution strengthens in (1ong term evolution-advance:LTE-A) system, in order to disturb the adjacent area that reduces covering edge, community subscriber equipment, the experience that improves edge, community subscriber equipment, has adopted cooperative multipoint transmission technology (coordinated-multiple-point:CoMP).Cooperative multipoint transmission technology is the cooperation between the multiple transfer points (transmission point:TP) that separate on geographical position.In order to realize the CoMP transmission to a subscriber equipment, network is measuring assembly of user device configuration, comprises one or more base stations in this measuring assembly.Network is one or more channel condition informations of user device configuration (channel state information:CSI) processes to the each base station in measuring assembly.Subscriber equipment carries out CSI according to each CSI process configuration and reports.
Base station reports according to subscriber equipment CSI needs a large amount of information and the data of exchange mutually in the scheduling process of carrying out cooperative multipoint transmission.In LTE system, the information between base station and data interaction realize by back haul link (backhaul).The rate of information throughput of Backhaul and transmission delay are determined by character and the protocol stack time delay of the physical link itself of realizing backhaul.If connect by physical link capacious between base station, as optical fiber direct connects in succession, the rate of information throughput of backhaul high (as Gbps magnitude).If connect by the less physical link of capacity between base station, as wireless transmission link, the rate of information throughput of backhaul low (as 1Mbps or lower).
Realize down collaboration multi-point, depend on the subscriber equipment of base station acquisition to the CSI of each cooperation point.CSI comprises channel quality indication (CQI) information (channel quality indicator:CQI), pre-coding matrix instruction (precoding matrix indicator:PMI) and order instruction (rank indicator:RI) etc.Subscriber equipment utilizes the downlink reference signal that each base station sends to measure the channel of base station to subscriber equipment, and (serving cell) feeds back the channel information that it measures to its Serving cell.The serving cell of subscriber equipment receives the CSI of feedback, carries out cooperative scheduling and/or the precoding that cooperates, thereby realize cooperation transmission with cooperation cell.The method that cooperative scheduling and/or cooperation precoding scheduling are carried out in minizone can be divided into two kinds: 1) non-central cooperative scheduling; 2) center cooperative scheduling.
Non-central scheduling does not have Centroid to carry out global optimization scheduling.In order to reach the result that approaches global optimization, may need to adopt the method for iteration scheduling between base station, between cooperative base station, may need to carry out repeatedly schedule information mutual, as shown in Figure 1A.If backhaul time delay is larger between base station, schedule information is carried out repeatedly in non-central scheduling, and can to make alternately to dispatch time delay excessive, causes channel information out-of-date, thereby affect transmission performance.
In the CoMP research of LTE-A version 11, consider desirable backhaul.In desirable backhaul situation, the key step of central dispatching (referring to Figure 1B) comprising:
1, each cooperative base station is transferred to Yi Ge center cooperative node (central coordination node:CCN) the subscriber equipment CSI of this base station of all accesses receiving recently;
2, CCN is all cooperative base station subscriber equipment centralized dispatching time domain and frequency domain resource, and be the subscriber devices compute precoding of having dispatched running time-frequency resource;
3, the scheduling of each subscriber equipment and precoding result are sent to each relevant base station by CCN;
4, base station is user device transmissions data according to scheduling of resource and the precoding result received.
In imperfect backhaul situation, the method for above-mentioned central dispatching needs cooperative base station that the CSI of the subscriber equipment of all accesses separately is transferred to CCN, and after CCN scheduling, all scheduling result need to be passed to respectively to each base station, as shown in Figure 2.Scheduling time delay (each cooperative base station is to CCN transmission CSI until receive scheduling of resource and the precoding information that CCN sends) is at least the backhaul propagation delay time of 2 times.In addition, if CCN is to the backhaul time delay difference of each cooperative base station in cooperation set, in order to allow scheduling result application simultaneously in cooperation set, the scheduling time delay in cooperation set is 2 times of maximum backhaul propagation delay time in set.For typical backhaul time delay (10ms), the scheduling time delay that above-mentioned central dispatching flow process produces in imperfect backhaul situation is roughly 20ms.This means that in cooperation set, each cooperation point is carried out CoMP transmission according to the CSI reporting before user 20ms.The out-of-date problem of CSI can have a strong impact on CoMP transmission performance.The out-of-date problem of CSI mainly comprises 3 aspects to the impact of transmission performance: 1, scheduling of resource is inaccurate; 2, pre-coding matrix is selected improper; 3, link circuit self-adapting is inaccurate.
In sum, the central dispatching method of cooperative multipoint transmission is to be desirable backhaul design at present, in imperfect backhaul situation because backhaul propagation delay time is very long, the accuracy of pre-coding matrix selection, link circuit self-adapting is had a strong impact on, thereby seriously reduce CoMP transmission performance.
Summary of the invention
The invention provides the method and apparatus of a kind of CoMP of carrying out transmission, to be desirable backhaul design in order to solve the central dispatching method of the current cooperative multipoint transmission existing in prior art, in imperfect backhaul situation because backhaul propagation delay time is very long, the accuracy of pre-coding matrix selection, link circuit self-adapting is had a strong impact on, thereby seriously reduce the problem of CoMP transmission performance.
A kind of method of carrying out CoMP transmission that the embodiment of the present invention provides, comprising:
Target BS receives the CSI of the subscriber equipment by other BTS managements of other base stations transmissions;
Described target BS, in the time that needs carry out CoMP transmission for described subscriber equipment, is that described subscriber equipment carries out CoMP transmission according to the described CSI of the described subscriber equipment of receiving.
The another kind that the embodiment of the present invention provides carries out the method for CoMP transmission, comprising:
The CSI of this subscriber equipment that CCN sends according to the base station of the management user device of receiving, determines the cooperative base station that need to carry out for this subscriber equipment CoMP transmission;
Described CCN notifies definite cooperative base station, and the CSI of the described subscriber equipment being sent according to the base station of the described subscriber equipment of management of receiving by cooperative base station is that described subscriber equipment carries out CoMP transmission.
A kind of target BS that carries out CoMP transmission that the embodiment of the present invention provides, comprising:
Receiver module, for receiving the CSI of the subscriber equipment by other BTS managements that other base stations send;
Processing module, in the time that needs carry out CoMP transmission for described subscriber equipment, is that described subscriber equipment carries out CoMP transmission according to the described CSI of the described subscriber equipment of receiving.
A kind of CCN that carries out CoMP transmission that the embodiment of the present invention provides, comprising:
Determination module, for according to the CSI of this subscriber equipment of the base station transmission of the management user device of receiving, determines the cooperative base station that need to carry out for this subscriber equipment CoMP transmission;
Notification module, for notifying definite cooperative base station, the CSI of the described subscriber equipment being sent according to the base station of the described subscriber equipment of management of receiving by cooperative base station is that described subscriber equipment carries out CoMP transmission.
Embodiment of the present invention target BS for this subscriber equipment carries out CoMP transmission, is compared the impact that has reduced the accuracy on pre-coding matrix selection, link circuit self-adapting in background technology according to the CSI of the subscriber equipment from other base stations, has improved CoMP transmission performance.
Brief description of the drawings
Figure 1A is the information interaction schematic diagram of non-central scheduling in background technology;
Figure 1B is the information interaction schematic diagram of central dispatching in background technology;
Fig. 2 is the method flow schematic diagram that embodiment of the present invention target BS carries out CoMP transmission;
Fig. 3 is the method flow schematic diagram that CoMP transmission is carried out in embodiment of the present invention CCN indicating target base station;
Fig. 4 is the system configuration schematic diagram that the embodiment of the present invention is carried out CoMP transmission;
Fig. 5 is the structural representation of embodiment of the present invention target BS;
Fig. 6 is the structural representation of embodiment of the present invention CCN.
Embodiment
Embodiment of the present invention target BS carries out CoMP transmission according to the CSI from the subscriber equipment of other base stations for this subscriber equipment.Because the CSI of this subscriber equipment sending according to the base station of the management user device of receiving selects and link circuit self-adapting pre-coding matrix, the CSI of the subscriber equipment of receiving is only through a backhaul.And target BS is selected and link circuit self-adapting pre-coding matrix according to the information of CCN in background technology, the information of CCN is that the CSI that reports according to other base stations determines, like this pre-coding matrix is selected and the information of link circuit self-adapting through two backhaul.The embodiment of the present invention is compared background technology, has reduced the time delay of the information to pre-coding matrix selection and link circuit self-adapting, has reduced the impact of the accuracy on pre-coding matrix selection, link circuit self-adapting, has improved CoMP transmission performance
As shown in Figure 2, the method that embodiment of the present invention target BS carries out CoMP transmission comprises the following steps:
Step 201, target BS receive the CSI of the subscriber equipment by other BTS managements of other base stations transmissions;
Step 202, target BS are in the time that needs carry out CoMP transmission for subscriber equipment, and the CSI of this subscriber equipment sending according to the base station of the management user device of receiving is that subscriber equipment carries out CoMP transmission.
Wherein, when target BS is determined CSI at needs, can be assumed to be user device configuration for different transmission and measure the information needing, the information that subscriber equipment needs according to allocating and measuring measures CSI or the information for definite CSI, and reports target BS.Target BS just obtains each transmission and supposes corresponding CSI like this.
In embodiments of the present invention, target BS is served as reasons the subscriber equipment of other BTS managements while carrying out CoMP transmission, and this target BS is cooperative base station for the subscriber equipment of other BTS managements;
Target BS is that while carrying out CoMP transmission by the subscriber equipment of self-management, this target BS is serving BS for the subscriber equipment of self-management.
Because cooperative base station need to be supposed corresponding CSI according to the selected transmission of CCN, for subscriber equipment carries out cooperation transmission.The CSI here include but not limited in following message partly or entirely: pre-coding matrix, CQI and MCS information.So transmission hypothesis corresponding to subscriber equipment that can be collaborative known in the each base station of needs.
Wherein, target BS, receiving according to the schedule information from CCN of receiving, determines whether to carry out CoMP transmission for described subscriber equipment.Carry out after CoMP transmission being defined as described subscriber equipment, the CSI of this subscriber equipment of receiving according to the last time to pre-coding matrix select, link circuit self-adapting, compare that background technology is selected pre-coding matrix and the information of link circuit self-adapting through a backhaul, shortened time delay.
Target BS is carrying out as serving BS CoMP when transmission, according to the CSI of definite subscriber equipment of the last time to pre-coding matrix select, link circuit self-adapting.
In the embodiment of the present invention, can be base station configuration transmission Assumption set, the corresponding transmission Assumption set of each subscriber equipment.
Wherein, transmission Assumption set comprises multiple transmission hypothesis, each transmission hypothesis comprises signal condition information and disturbance state information, signal condition information is to be expressed as each base station that subscriber equipment carries out CoMP transmission (to comprise the base station of management user device, it is serving BS, and the cooperative base station of this subscriber equipment) whether send separately the information of useful signal to this subscriber equipment, disturbance state information is to be expressed as each base station that subscriber equipment carries out CoMP transmission (to comprise the base station of management user device, it is serving BS, and the cooperative base station of this subscriber equipment) whether the transmission of this subscriber equipment is produced to the information of disturbing separately.
If disturbance state information represents a cooperative base station and do not produce interference, mean that this base station may for useful signal transfer point or have carried out mourning in silence in this base station or cooperation precoding has been carried out in this base station.
With two examples, transmission Assumption set is described below.
Table 1 has provided the transmission hypothesis agreement example of a subscriber equipment that comprises 2 base stations (serving BS BS1, cooperative base station BS2) in transmission Assumption set.Table 2 has provided the transmission hypothesis agreement example of a subscriber equipment that comprises 3 base stations (serving BS BS1, cooperative base station BS2, cooperative base station BS3) in measuring assembly.In the disturbance state information of table 1 and table 2, " On " represents to have produced interference, and " Off " represents not produce interference.
Table 1. transmits Assumption set and comprises two base stations:
Table 2. transmits Assumption set and comprises three base stations:
In force, transmission Assumption set can be set subscriber equipment and corresponding transmission Assumption set in agreement; Also can be by transmitting between each equipment.Such as base station can be transferred to the transmission Assumption set of the subscriber equipment of self-management and corresponding customer equipment identification CCN and other base stations, target BS sends the customer equipment identification of the subscriber equipment of transmission Assumption set that the subscriber equipment of self-management is corresponding and self-management to the cooperative base station of the subscriber equipment of self-management and/or CCN; Also can the transmission Assumption set of the subscriber equipment of self-management and corresponding customer equipment identification can be transferred to CCN by base station, be transferred to other base stations by CCN; Can also the transmission Assumption set of each subscriber equipment and corresponding customer equipment identification be transferred to each base station by CCN.
The corresponding relation of customer equipment identification and transmission Assumption set just can be determined in each base station after obtaining transmitting Assumption set.
Preferably, before step 202, can further include:
Target BS, according to transmission Assumption set and the customer equipment identification from other base stations or CCN received, is determined the corresponding relation of customer equipment identification and transmission Assumption set.
Wherein, subscriber equipment reports after CSI to target BS, and target BS receives the CSI of this subscriber equipment, CSI and transmission hypothesis mark corresponding to this CSI can be notified to other base stations and CCN.
Concrete, target BS sends to the transmission hypothesis mark of transmission hypothesis corresponding to the CSI of the subscriber equipment of self-management and this CSI the cooperative base station of the subscriber equipment of self-management.
If that user equipment to report is CSI, the transmission hypothesis that the subscriber equipment that the transmission that CSI is corresponding is assumed to be target BS configuration self-management adopts while measuring this CSI;
If user equipment to report is the information for determining CSI, the transmission that CSI is corresponding supposes that signal and the disturbed condition corresponding with CSI are identical.
In force, target BS judges according to the CSI of subscriber equipment the transmission hypothesis that this subscriber equipment can be supported.For example, measuring assembly comprises a subscriber equipment supporting 2 transfer points, reported 2 CSI, the corresponding transmission hypothesis of one of them CSI BS1 is transfer point, and BS2 is noise spot, it is transfer point that the corresponding transmission of another CSI is assumed to be BS2, BS1 does not disturb, and according to table 1, target BS is judged the corresponding transmission hypothesis 3 of the CSI of this subscriber equipment, that is to say, target BS is supposed corresponding CSI using this CSI as the transmission of this subscriber equipment support.
The effect of the transmission Assumption set in the embodiment of the present invention is the mapping relations that (or also comprising CCN) sets up transmission hypothesis and sequence number between all cooperative base station.The CSI that facilitates cooperative base station to receive serving BS transmission judges corresponding which the transmission hypothesis of this CSI.Cooperative base station need to be used the situation of CSI that serving BS sends, and only to have dispatched this cooperative base station at CCN be user device transmissions signal, that is to say when cooperative base station is used certain CSI it must is as transmission point signal time, those only corresponding with service base station be not need notice to cooperative base station as the CSI of transfer point, the transmission hypothesis of these CSI just there is no need in transmission Assumption set.
Transmission corresponding to above-mentioned definite CSI hypothesis is for a scheduling resource, needs in force target BS need to determine that the transmission of this subscriber equipment support on each scheduling resource supposes corresponding CSI.
The CSI of each resource and schedule information can identical also can be different.Transmission Assumption set for same subscriber equipment is identical in each resource.
Target BS is transferred to corresponding cooperative base station or CCN (" corresponding cooperative base station " at least comprises that disturbance state information and signal condition information are indicated as the base station of transfer point) CSI and transmission hypothesis mark here by backhaul.Target BS can send CSI together with transmission hypothesis mark, such as passing through dedicated signaling, the transmissions such as broadcast; Also can send respectively.
Preferably, before step 202, can further include:
For a subscriber equipment of other BTS management, target BS, according to transmission Assumption set and the customer equipment identification from other base stations or CCN received, is determined the corresponding relation of customer equipment identification and transmission Assumption set.
For a subscriber equipment of target BS management, if determined the transmission Assumption set of subscriber equipment by CCN, target BS, according to transmission Assumption set and the customer equipment identification from CCN received, is determined the corresponding relation of customer equipment identification and transmission Assumption set; If determined the transmission Assumption set of subscriber equipment by target BS, target BS self just can directly be determined the corresponding relation of transmission Assumption set and customer equipment identification.
In step 201, target BS receives each transmission hypothesis mark and the corresponding CSI of each subscriber equipment of other base station notices, read and record the information comprising in CSI, cover the information corresponding to identical traffic hypothesis mark of the same user device of current record simultaneously.
Concrete, for a subscriber equipment of other BTS management, the CSI that target BS sends according to other base stations of receiving and transmission hypothesis mark, determine the corresponding relation that transmits hypothesis mark and CSI;
For a subscriber equipment of target BS management, target BS, according to the corresponding relation of CSI and transmission hypothesis, is determined the corresponding relation of transmission hypothesis mark and CSI.Because the corresponding relation target BS of CSI and transmission hypothesis just can be known after definite CSI, so can directly determine the corresponding relation of transmission hypothesis mark and CSI.
In step 202, target BS is searched the CSI of the correspondence transmission hypothesis mark of this target BS record on each scheduling resource according to the schedule information of CCN notice, and this CSI is defined as to the transformation parameter on each scheduling resource, for subscriber equipment carries out CoMP transmission.
Concrete, target BS, according to the corresponding relation of customer equipment identification and transmission Assumption set, is determined transmission Assumption set corresponding to the customer equipment identification from the schedule information of CCN of receiving;
The transmission hypothesis mark that target BS is supposed according to the transmission in definite transmission Assumption set and the corresponding relation of CSI, determine that the transmission hypothesis from the schedule information of CCN of receiving identifies corresponding CSI; Or determine signal condition information and disturbance state information according to what receive from the transmission Base Station Identification in the schedule information of CCN and/or interference base station mark, from transmission Assumption set corresponding to customer equipment identification, determine the transmission hypothesis that comprises signal condition information and disturbance state information, according to the transmission hypothesis mark of transmission hypothesis and the corresponding relation of CSI, determine CSI corresponding to transmission hypothesis;
Target BS is according to definite CSI, on the scheduling resource of schedule information instruction for subscriber equipment carries out CoMP transmission.
Wherein, schedule information except comprising the information in foregoing, can also include but not limited in following message partly or entirely:
Sequence number of certain resource etc. in the size of the sequence number (as PRB (Physical Resource Block) sequence number) of all resources of dispatching, the Resource Block of being dispatched, the Resource Block of being dispatched.
In force, on a scheduling resource, CCN has dispatched the CoMP transmission of a CoMP subscriber equipment in cooperation set to this cooperative base station, CCN can transmit corresponding transmission hypothesis mark this customer equipment identification and this CoMP and be transferred to this cooperative base station, or this customer equipment identification and transmission identification of base stations and/or interference base station identification are transferred to this cooperative base station;
Accordingly, for a scheduling resource, if target BS is received the schedule information that comprises customer equipment identification and transmission hypothesis mark of CCN notice, determine transmission Assumption set corresponding to customer equipment identification in schedule information, and determine in transmission Assumption set and suppose to identify CSI corresponding to identical transmission hypothesis mark with the transmission in the schedule information of receiving, this CSI is defined as to the transformation parameter on each scheduling resource, for subscriber equipment carries out CoMP transmission.
Taking table 1 as example, CCN is placed in schedule information by transmission hypothesis 3 and customer equipment identification and notifies to target BS, target BS is first determined transmission Assumption set according to customer equipment identification, i.e. table 1, then according to the transmission hypothesis mark of the transmission hypothesis in this transmission Assumption set and the corresponding relation of CSI, determine that transmission in schedule information supposes the CSI of 3 correspondences.
Accordingly, for a scheduling resource, if target BS is received the schedule information that comprises customer equipment identification and transmission Base Station Identification and/or interference base station mark of CCN notice, determine signal condition information and disturbance state information according to what receive from the transmission Base Station Identification in the schedule information of CCN and/or interference base station mark, and transmission Assumption set corresponding to customer equipment identification in definite schedule information, then from transmission Assumption set corresponding to customer equipment identification, determine the transmission hypothesis that comprises definite signal condition information and disturbance state information, and according to the transmission hypothesis mark of transmission hypothesis and the corresponding relation of CSI, determine CSI corresponding to transmission hypothesis, and using definite CSI the transformation parameter on each scheduling resource, for subscriber equipment carries out CoMP transmission.
Taking table 1 as example, according to receive determine signal condition information and disturbance state information from the transmission Base Station Identification in the schedule information of CCN and/or interference base station mark time, if receive transmission Base Station Identification, can determine other base stations except base station corresponding to transmission Base Station Identification do not participate in transmission or, mourn in silence in other base station except the transmission base station showing, and can preset for disturbance state information, does not all disturb all base stations or there is interference all base stations;
If receive interference base station mark, determine that other base stations except interference base station identifies corresponding base station are not all disturbed, the base station acquiescence of the interference base station mark of receiving determines that this base station is unique signal transmission base station of subscriber equipment;
If receive transmission Base Station Identification and interference base station mark, determine that transmitting base station corresponding to Base Station Identification transmits, interference base station identifies corresponding base station interference.
Taking table 1 as example, CCN is placed in schedule information by transmission Base Station Identification BS2 and sends to target BS, just determine there is no interference base station mark, and other base stations is non-transmission base station if target BS is only received transmission Base Station Identification.
Target BS is first determined transmission Assumption set according to the customer equipment identification that is placed in schedule information, i.e. table 1, then be non-transmission base station according to transmitting Base Station Identification BS2, there is no interference base station mark and other base stations, just can determine that transmission hypothesis is designated 3, then according to the transmission hypothesis mark of the transmission hypothesis in this transmission Assumption set and the corresponding relation of CSI, determine the CSI of transmission hypothesis 3 correspondences.
With an example, the solution of the present invention is described below.
Suppose: in system, have 2 base stations to carry out cooperation transmission: respectively there are 2 subscriber equipmenies base station 1, base station, 2,2 of base stations 1 time, base station UE1 (CoMP subscriber equipment, measuring assembly comprises base station 1 and base station 2), UE2; 2 times, base station UE3, UE4.
There is 1 scheduling resource above-mentioned 2 base stations:
Base station 1 to base station 2, the transmission Assumption set of CCN notice UE1, such as the content of table 1, for UE1, in table 1, BS1 represents base station 1, BS2 represents base station 2.
All user equipment to report CSI, each base station is transferred to CCN by backhaul the CSI of each subscriber equipment; Wherein the CSI of UE1 comprises the CSI of transmission hypothesis 3 in support matrix 1 in reporting.
Base station 1 determines that the transmission of UE1 supposes the mark of the mark of CSI, the UE1 of 3 correspondences, transmission hypothesis 3, and these information are notified together to base station 2, and the CSI of 3 correspondences is supposed in the transmission that UE1 is recorded in base station 2.
The transmission hypothesis CSI of 3 correspondences and the mark of UE1 are transferred to CCN by base station 1.Preferably, can also transmit the mark of hypothesis 3.
CCN dispatches according to granularity cycle regular hour according to the information of receiving.Suppose that CCN is 2 base station scheduling users transmission, for base station 1 scheduling is mourned in silence, the unicast of having dispatched UE1 for base station 2;
CCN represents the information of mourning in silence to base station 1 transmission; Transmit the mark of UE1 and the mark of transmission hypothesis 3 to base station 2.
2 base station receiving scheduling information respectively:
Does not transmit according to the silencing information of CCN notice base station 1;
Base station 2, according to customer equipment identification, determines that UE1 is target UE, according to the transmission hypothesis mark of receiving, determines corresponding CSI, and is UE1 transmission data according to CSI.
As shown in Figure 3, the method that CoMP transmission is carried out in embodiment of the present invention CCN indicating target base station comprises the following steps:
The CSI of this subscriber equipment that step 301, CCN send according to the base station of the management user device of receiving, determines the cooperative base station that need to carry out for this subscriber equipment CoMP transmission;
Step 302, CCN notify definite cooperative base station, and the CSI of this subscriber equipment being sent according to the serving BS of receiving by cooperative base station is that subscriber equipment carries out CoMP transmission.
Preferably, in step 302, the schedule information of the transmission hypothesis mark that comprises transmission hypothesis corresponding to customer equipment identification and scheduled transmission is sent to definite base station by CCN; Or
CCN will comprise customer equipment identification and send to definite cooperative base station according to the schedule information of the interference base station mark of the transmission Base Station Identification of the definite transmission base station of scheduled transmission and/or interference base station;
Wherein, transmission Assumption set comprises multiple transmission hypothesis, each transmission hypothesis comprises signal condition information and disturbance state information, signal condition information is to be expressed as each base station that subscriber equipment carries out CoMP transmission (to comprise the base station of management user device, it is serving BS, and the cooperative base station of this subscriber equipment) whether send separately the information of useful signal to this subscriber equipment, disturbance state information is to be expressed as each base station that subscriber equipment carries out CoMP transmission (to comprise the base station of management user device, it is serving BS, and the cooperative base station of this subscriber equipment) whether the transmission of this subscriber equipment is produced to the information of disturbing separately.
Based on same inventive concept, system, target BS and the CCN of a kind of CoMP of carrying out transmission are also provided in the embodiment of the present invention, because the principle that these equipment are dealt with problems is similar to the method for the embodiment of the present invention, therefore the enforcement of these equipment can be referring to the enforcement of method, repeats part and repeat no more.
As shown in Figure 4, the system that the embodiment of the present invention is carried out CoMP transmission comprises: CCN 40 and target BS 41.
CCN 40, for according to the CSI of this subscriber equipment of the base station transmission of the management user device of receiving, determines the cooperative base station that need to carry out for this subscriber equipment CoMP transmission; Notify definite cooperative base station, the CSI of the subscriber equipment being sent according to the base station of the management user device of receiving by cooperative base station is that subscriber equipment carries out CoMP transmission.
Target BS 41, for receiving the CSI of the subscriber equipment by other BTS managements that other base stations send; According to the notice of the CCN 40 receiving, in the time that needs carry out CoMP transmission for subscriber equipment, the CSI of this subscriber equipment sending according to the base station of the management user device of receiving is that subscriber equipment carries out CoMP transmission.
As shown in Figure 5, the target BS of the embodiment of the present invention comprises: receiver module 500 and processing module 510.
Receiver module 500, for receiving the CSI of the subscriber equipment by other BTS managements that other base stations send;
Processing module 510, in the time that needs carry out CoMP transmission for subscriber equipment, the CSI of this subscriber equipment sending according to the base station of the management user device of receiving is that subscriber equipment carries out CoMP transmission.
Preferably, processing module 510, according to the schedule information from center cooperative node CCN of receiving, determines whether to carry out CoMP transmission for described subscriber equipment.
Preferably, processing module 510 is according to the corresponding relation of customer equipment identification and transmission Assumption set, determine transmission Assumption set corresponding to the customer equipment identification from the schedule information of CCN of receiving, wherein transmit Assumption set and comprise multiple transmission hypothesis, each transmission hypothesis comprises signal condition information and disturbance state information, signal condition information is the information that is expressed as each base station that subscriber equipment carries out CoMP transmission and whether sends to this subscriber equipment separately useful signal, disturbance state information is to be expressed as each base station that subscriber equipment carries out CoMP transmission whether the transmission of this subscriber equipment to be produced to the information of disturbing separately, the transmission hypothesis mark of supposing according to the transmission in definite transmission Assumption set and the corresponding relation of CSI, determine that the transmission hypothesis from the schedule information of CCN of receiving identifies corresponding CSI, or determine signal condition information and disturbance state information according to what receive from the transmission Base Station Identification in the schedule information of CCN and/or interference base station mark, from transmission Assumption set corresponding to customer equipment identification, determine the transmission hypothesis that comprises signal condition information and disturbance state information, according to the transmission hypothesis mark of transmission hypothesis and the corresponding relation of CSI, determine CSI corresponding to transmission hypothesis, according to definite CSI, on the scheduling resource of schedule information instruction for subscriber equipment carries out CoMP transmission.
Preferably, processing module 510 is for a subscriber equipment of other BTS management, and the CSI sending according to other base stations of receiving and transmission hypothesis identify, and determine the corresponding relation of transmission hypothesis mark and CSI; For a subscriber equipment of target BS management, according to the corresponding relation of CSI and transmission hypothesis, determine the corresponding relation of transmission hypothesis mark and CSI.
Preferably, processing module 510, for a subscriber equipment of other BTS management, according to transmission Assumption set and the customer equipment identification from other base stations or CCN received, is determined the corresponding relation of customer equipment identification and transmission Assumption set.
Preferably, processing module 510, for a subscriber equipment of target BS management, according to transmission Assumption set and the customer equipment identification from CCN received, is determined the corresponding relation of customer equipment identification and transmission Assumption set.
Preferably, this target BS also comprises: sending module 520.
Sending module 520, sends the CSI of this subscriber equipment for the cooperative base station of the subscriber equipment to self-management.
Preferably, sending module 520 sends to the transmission hypothesis mark of transmission hypothesis corresponding to the CSI of the subscriber equipment of self-management and this CSI the cooperative base station of the subscriber equipment of self-management.
Preferably, sending module 520 sends the customer equipment identification of the subscriber equipment of transmission Assumption set that the subscriber equipment of self-management is corresponding and self-management to the cooperative base station of the subscriber equipment of self-management and/or CCN.
As shown in Figure 6, the CCN of the embodiment of the present invention comprises: determination module 600 and notification module 610.
Determination module 600, for according to the CSI of this subscriber equipment of the base station transmission of the management user device of receiving, determines the cooperative base station that need to carry out for this subscriber equipment CoMP transmission;
Notification module 610, for notifying definite cooperative base station, the CSI of the subscriber equipment being sent according to the base station of the management user device of receiving by cooperative base station is that subscriber equipment carries out CoMP transmission.
Preferably, the schedule information of the transmission hypothesis mark that comprises transmission hypothesis corresponding to customer equipment identification and scheduled transmission is sent to definite cooperative base station by notification module 610; Maybe will comprise customer equipment identification and send to definite cooperative base station according to the schedule information of the interference base station mark of the transmission Base Station Identification of the definite transmission base station of scheduled transmission and/or interference base station;
Wherein transmit Assumption set and comprise multiple transmission hypothesis, each transmission hypothesis comprises signal condition information and disturbance state information, signal condition information is the information that is expressed as each base station that subscriber equipment carries out CoMP transmission and whether sends to this subscriber equipment separately useful signal, and disturbance state information is to be expressed as each base station that subscriber equipment carries out CoMP transmission whether the transmission of this subscriber equipment to be produced to the information of disturbing separately.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (20)
1. a method of carrying out cooperative multipoint transmission technology CoMP transmission, is characterized in that, the method comprises:
Target BS receives the channel condition information CSI of the subscriber equipment by other BTS managements of other base stations transmissions;
Described target BS, in the time that needs carry out CoMP transmission for described subscriber equipment, is that described subscriber equipment carries out CoMP transmission according to the described CSI of the described subscriber equipment of receiving.
2. the method for claim 1, is characterized in that, described target BS, also comprises before described subscriber equipment carries out CoMP transmission according to the described CSI of the described subscriber equipment of receiving:
Described target BS, according to the schedule information from center cooperative node CCN of receiving, determines whether to carry out CoMP transmission for described subscriber equipment.
3. method as claimed in claim 2, is characterized in that, described target BS is that described subscriber equipment carries out CoMP transmission according to the described CSI of the described subscriber equipment of receiving, comprising:
Described target BS is according to the corresponding relation of customer equipment identification and transmission Assumption set, determine transmission Assumption set corresponding to the customer equipment identification from the schedule information of CCN of receiving, wherein transmit Assumption set and comprise multiple transmission hypothesis, each transmission hypothesis comprises signal condition information and disturbance state information, signal condition information is the information that is expressed as each base station that subscriber equipment carries out CoMP transmission and whether sends to this subscriber equipment separately useful signal, disturbance state information is to be expressed as each base station that subscriber equipment carries out CoMP transmission whether the transmission of this subscriber equipment to be produced to the information of disturbing separately,
The transmission hypothesis mark that described target BS is supposed according to the transmission in definite transmission Assumption set and the corresponding relation of CSI, determine that the transmission hypothesis from the schedule information of CCN of receiving identifies corresponding CSI; Or determine signal condition information and disturbance state information according to what receive from the transmission Base Station Identification in the schedule information of CCN and/or interference base station mark, from transmission Assumption set corresponding to described customer equipment identification, determine the transmission hypothesis that comprises described signal condition information and disturbance state information, according to the transmission hypothesis mark of described transmission hypothesis and the corresponding relation of CSI, determine that described transmission supposes corresponding CSI;
Described target BS, according to definite CSI, carries out CoMP transmission for described subscriber equipment on the scheduling resource of described schedule information instruction.
4. method as claimed in claim 3, is characterized in that, described target BS is determined the corresponding relation of transmission hypothesis mark and CSI according to following manner:
For a subscriber equipment of other BTS management, mark is supposed in described CSI and transmission that described target BS sends according to other base stations of receiving, determines that transmission hypothesis identifies and the corresponding relation of CSI;
For a subscriber equipment of target BS management, described target BS, according to the corresponding relation of CSI and transmission hypothesis, is determined the corresponding relation of transmission hypothesis mark and CSI.
5. method as claimed in claim 3, is characterized in that, described target BS is determined the corresponding relation of customer equipment identification and transmission Assumption set according to following manner:
For a subscriber equipment of other BTS management, described target BS, according to transmission Assumption set and the customer equipment identification from other base stations or CCN received, is determined the corresponding relation of customer equipment identification and transmission Assumption set;
For a subscriber equipment of target BS management, described target BS, according to transmission Assumption set and the customer equipment identification from CCN received, is determined the corresponding relation of customer equipment identification and transmission Assumption set.
6. the method for claim 1, is characterized in that, the method also comprises:
Described target BS sends the CSI of this subscriber equipment to the cooperative base station of the subscriber equipment of self-management.
7. method as claimed in claim 6, is characterized in that, described target BS sends the CSI of this subscriber equipment to the cooperative base station of the subscriber equipment of self-management, comprising:
Described target BS sends to the transmission hypothesis mark of transmission hypothesis corresponding to the CSI of the subscriber equipment of self-management and this CSI the cooperative base station of the subscriber equipment of self-management.
8. method as claimed in claim 6, is characterized in that, the method also comprises:
Described target BS sends the customer equipment identification of the subscriber equipment of transmission Assumption set that the subscriber equipment of self-management is corresponding and self-management to the cooperative base station of the subscriber equipment of self-management and/or CCN.
9. a method of carrying out CoMP transmission, is characterized in that, the method comprises:
The CSI of this subscriber equipment that CCN sends according to the base station of the management user device of receiving, determines the cooperative base station that need to carry out for this subscriber equipment CoMP transmission;
Described CCN notifies definite cooperative base station, and the CSI of the described subscriber equipment being sent according to the base station of the described subscriber equipment of management of receiving by cooperative base station is that described subscriber equipment carries out CoMP transmission.
10. method as claimed in claim 9, is characterized in that, described CCN notifies definite cooperative base station, comprising:
The schedule information of the transmission hypothesis mark that comprises transmission hypothesis corresponding to customer equipment identification and scheduled transmission is sent to definite cooperative base station by described CCN; Or
Described CCN will comprise customer equipment identification and send to definite cooperative base station according to the schedule information of the interference base station mark of the transmission Base Station Identification of the definite transmission base station of scheduled transmission and/or interference base station;
Wherein transmit Assumption set and comprise multiple transmission hypothesis, each transmission hypothesis comprises signal condition information and disturbance state information, signal condition information is the information that is expressed as each base station that subscriber equipment carries out CoMP transmission and whether sends to this subscriber equipment separately useful signal, and disturbance state information is to be expressed as each base station that subscriber equipment carries out CoMP transmission whether the transmission of this subscriber equipment to be produced to the information of disturbing separately.
11. 1 kinds are carried out the target BS of CoMP transmission, it is characterized in that, this target BS comprises:
Receiver module, for receiving the CSI of the subscriber equipment by other BTS managements that other base stations send;
Processing module, in the time that needs carry out CoMP transmission for described subscriber equipment, is that described subscriber equipment carries out CoMP transmission according to the described CSI of the described subscriber equipment of receiving.
12. target BS as claimed in claim 11, is characterized in that, described processing module specifically for:
According to the schedule information from CCN of receiving, determine whether to carry out CoMP transmission for described subscriber equipment.
13. target BS as claimed in claim 12, is characterized in that, described processing module also for:
According to the corresponding relation of customer equipment identification and transmission Assumption set, determine transmission Assumption set corresponding to the customer equipment identification from the schedule information of CCN of receiving, wherein transmit Assumption set and comprise multiple transmission hypothesis, each transmission hypothesis comprises signal condition information and disturbance state information, signal condition information is the information that is expressed as each base station that subscriber equipment carries out CoMP transmission and whether sends to this subscriber equipment separately useful signal, disturbance state information is to be expressed as each base station that subscriber equipment carries out CoMP transmission whether the transmission of this subscriber equipment to be produced to the information of disturbing separately, the transmission hypothesis mark of supposing according to the transmission in definite transmission Assumption set and the corresponding relation of CSI, determine that the transmission hypothesis from the schedule information of CCN of receiving identifies corresponding CSI, or determine signal condition information and disturbance state information according to what receive from the transmission Base Station Identification in the schedule information of CCN and/or interference base station mark, from transmission Assumption set corresponding to described customer equipment identification, determine the transmission hypothesis that comprises described signal condition information and disturbance state information, according to the transmission hypothesis mark of described transmission hypothesis and the corresponding relation of CSI, determine that described transmission supposes corresponding CSI, according to definite CSI, on the scheduling resource of described schedule information instruction, carry out CoMP transmission for described subscriber equipment.
14. target BS as claimed in claim 13, is characterized in that, described processing module specifically for:
For a subscriber equipment of other BTS management, the described CSI sending according to other base stations of receiving and transmission hypothesis identify, and determine the corresponding relation of transmission hypothesis mark and CSI;
For a subscriber equipment of target BS management, according to the corresponding relation of described CSI and transmission hypothesis, determine the corresponding relation of transmission hypothesis mark and CSI.
15. target BS as claimed in claim 13, is characterized in that, described processing module specifically for:
For a subscriber equipment of other BTS management, according to transmission Assumption set and the customer equipment identification from other base stations or CCN received, determine the corresponding relation of customer equipment identification and transmission Assumption set;
For a subscriber equipment of target BS management, according to transmission Assumption set and the customer equipment identification from CCN received, determine the corresponding relation of customer equipment identification and transmission Assumption set.
16. target BS as claimed in claim 11, is characterized in that, this target BS also comprises:
Sending module, sends the CSI of this subscriber equipment for the cooperative base station of the subscriber equipment to self-management.
17. target BS as claimed in claim 16, is characterized in that, described sending module specifically for:
The transmission hypothesis mark of transmission hypothesis corresponding to the CSI of the subscriber equipment of self-management and this CSI is sent to the cooperative base station of the subscriber equipment of self-management.
18. target BS as claimed in claim 16, is characterized in that, described sending module also for:
Send the customer equipment identification of the subscriber equipment of transmission Assumption set that the subscriber equipment of self-management is corresponding and self-management to the cooperative base station of the subscriber equipment of self-management and/or CCN.
19. 1 kinds are carried out the CCN of CoMP transmission, it is characterized in that, this CCN comprises:
Determination module, for according to the CSI of this subscriber equipment of the base station transmission of the management user device of receiving, determines the cooperative base station that need to carry out for this subscriber equipment CoMP transmission;
Notification module, for notifying definite cooperative base station, the CSI of the described subscriber equipment being sent according to the base station of the described subscriber equipment of management of receiving by cooperative base station is that described subscriber equipment carries out CoMP transmission.
20. CCN as claimed in claim 19, is characterized in that, described notification module specifically for:
The schedule information of the transmission hypothesis mark that comprises transmission hypothesis corresponding to customer equipment identification and scheduled transmission is sent to definite cooperative base station; Maybe will comprise customer equipment identification and send to definite cooperative base station according to the schedule information of the interference base station mark of the transmission Base Station Identification of the definite transmission base station of scheduled transmission and/or interference base station;
Wherein transmit Assumption set and comprise multiple transmission hypothesis, each transmission hypothesis comprises signal condition information and disturbance state information, signal condition information is the information that is expressed as each base station that subscriber equipment carries out CoMP transmission and whether sends to this subscriber equipment separately useful signal, and disturbance state information is to be expressed as each base station that subscriber equipment carries out CoMP transmission whether the transmission of this subscriber equipment to be produced to the information of disturbing separately.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129935.5A CN104105210B (en) | 2013-04-15 | 2013-04-15 | A kind of method and apparatus for carrying out CoMP transmission |
| PCT/CN2014/075238 WO2014169795A1 (en) | 2013-04-15 | 2014-04-14 | Method and device for performing comp transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129935.5A CN104105210B (en) | 2013-04-15 | 2013-04-15 | A kind of method and apparatus for carrying out CoMP transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104105210A true CN104105210A (en) | 2014-10-15 |
| CN104105210B CN104105210B (en) | 2018-03-30 |
Family
ID=51672909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310129935.5A Active CN104105210B (en) | 2013-04-15 | 2013-04-15 | A kind of method and apparatus for carrying out CoMP transmission |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104105210B (en) |
| WO (1) | WO2014169795A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533644A (en) * | 2016-11-28 | 2017-03-22 | 上海华为技术有限公司 | Method for CoMP transmission and base station |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373998A (en) * | 2007-08-20 | 2009-02-25 | 上海贝尔阿尔卡特股份有限公司 | Low information interactive multi-base station collaboration MIMO as well as scheduling method and apparatus thereof |
| CN101635950A (en) * | 2009-08-14 | 2010-01-27 | 中兴通讯股份有限公司 | Method and device for determining positions of cell reference signals |
| CN101888665A (en) * | 2009-05-13 | 2010-11-17 | 普天信息技术研究院有限公司 | Local scheduler-based multi-point cooperative transmission method |
| US20100322351A1 (en) * | 2009-06-17 | 2010-12-23 | Futurewei Technologies, Inc. | Channel State Information Feedback for Coordinated Multiple Points Transmission |
| CN102013903A (en) * | 2009-09-29 | 2011-04-13 | 大唐移动通信设备有限公司 | Method and equipment for space coordination among cells |
| CN102036393A (en) * | 2009-09-28 | 2011-04-27 | 大唐移动通信设备有限公司 | Method and equipment for determining multi-cell channel information |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740385B (en) * | 2011-04-11 | 2016-08-10 | 华为技术有限公司 | Method and apparatus for community switching |
-
2013
- 2013-04-15 CN CN201310129935.5A patent/CN104105210B/en active Active
-
2014
- 2014-04-14 WO PCT/CN2014/075238 patent/WO2014169795A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373998A (en) * | 2007-08-20 | 2009-02-25 | 上海贝尔阿尔卡特股份有限公司 | Low information interactive multi-base station collaboration MIMO as well as scheduling method and apparatus thereof |
| CN101888665A (en) * | 2009-05-13 | 2010-11-17 | 普天信息技术研究院有限公司 | Local scheduler-based multi-point cooperative transmission method |
| US20100322351A1 (en) * | 2009-06-17 | 2010-12-23 | Futurewei Technologies, Inc. | Channel State Information Feedback for Coordinated Multiple Points Transmission |
| CN101635950A (en) * | 2009-08-14 | 2010-01-27 | 中兴通讯股份有限公司 | Method and device for determining positions of cell reference signals |
| CN102036393A (en) * | 2009-09-28 | 2011-04-27 | 大唐移动通信设备有限公司 | Method and equipment for determining multi-cell channel information |
| CN102013903A (en) * | 2009-09-29 | 2011-04-13 | 大唐移动通信设备有限公司 | Method and equipment for space coordination among cells |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533644A (en) * | 2016-11-28 | 2017-03-22 | 上海华为技术有限公司 | Method for CoMP transmission and base station |
| CN106533644B (en) * | 2016-11-28 | 2019-10-22 | 上海华为技术有限公司 | It is a kind of carry out CoMP transmission method and base station |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014169795A1 (en) | 2014-10-23 |
| CN104105210B (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10999143B2 (en) | Cell measurement method, cell resource sharing method, and related device | |
| CN102365897B (en) | Apparatus and method for interference avoidance in mixed device-to-device and cellular environment | |
| CN101877887B (en) | Downlink transmission control method and device of cooperative multicast system | |
| CN102404055B (en) | Method, system and device for measuring interference | |
| CN104221421A (en) | System and method for measurement report triggering configuration for multiple point communication measurement set management | |
| CN104284440B (en) | Dispatching method, cooperative transmission node and center cooperation point in down collaboration transmission | |
| CN103945556A (en) | Method, system and equipment for resource scheduling | |
| CN102427608A (en) | Method and device for sending SRS (Sounding Reference Symbol) and indicating to send SRS | |
| CN102684835A (en) | Method and equipment for reporting multi-point channel state information | |
| CN103580790A (en) | DMRS processing method and device | |
| CN102474401A (en) | Method of coordinating the transmission resources in a coordinated multipoint transmission/receiving communication network | |
| CN101873671A (en) | Method, system and device for determining CoMP participating cells | |
| CN102065465A (en) | Method, system and device for transmitting data | |
| CN102291764A (en) | Method, system and equipment for configuring and reporting measurement information | |
| CN103490865A (en) | Feedback method, device and system for CoMP | |
| CN103840868A (en) | Methods for indicating and feeding back channel quality information, devices and system | |
| CN104471887A (en) | Method and access point for assigning sounding resources | |
| CN103491523A (en) | CSI-RS information providing method and communication terminal | |
| CN103945555A (en) | Resource scheduling method and equipment under multi-point coordinated transmission | |
| CN104105211A (en) | Transmission scheduling method and device | |
| CN102638805A (en) | Method and equipment for promoting interference coordination of heterogeneous network | |
| CN104796988A (en) | Resource allocation method and device | |
| CN104936184A (en) | Method of carrying out resource distribution among cells based on coordinated multi-point and equipment | |
| CN105025563A (en) | Method, device and system for cooperative communication and related equipment | |
| CN102958178B (en) | A kind of frequency selectivity dispatching method, CQI report method, Apparatus and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210527 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |