CN103905098A - MIMO scheduling method, system and device - Google Patents
MIMO scheduling method, system and device Download PDFInfo
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Abstract
The embodiments of the invention relate to the technical field of wireless communications, and especially relate to a MIMO scheduling method, system and device, for solving the problem of not high accuracy of low-Rank CSI obtained after a base station is corrected according to high-Rank CSI in the prior art. In the method provided by the embodiments of the invention, a network side device sends configuration information of N processes to user equipment, N is an integer nor smaller than 2, the configuration information of the N processes is corresponding to the same transmission point, the configuration information of one process from the configuration information of the N processes is correspondingly transmitted in an SU-MIMO mode, and the configuration information of the other processes is correspondingly transmitted in an MU-MIMO mode. The method, system and device provided by the embodiments of the invention can prevent the influence on MU-MIMO due to the not high accuracy of the low-Rank CSI obtained after the base station is corrected according to the high-Rank CSI, thus the transmission of the MU-MIMO can be better supported.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method, system and equipment of MIMO scheduling.
Background technology
MIMO(multiple-input and multiple-output) system uses multiple transmittings, reception antenna, utilize signal sky, time, frequency-domain combined processing obtains speed, diversity and array gain.In mimo system, if transmitter can be known channel information in some way, just can be optimized transmitted signal according to the characteristic of channel, to improve the quality of reception and to reduce the requirement to Receiver Complexity.Generally, TDD(Time divisionduplex, time division duplex) system can utilize channel reciprocity to obtain channel information, but some special circumstances to FDD system or TDD system need to be passed through receiver feedback channel information.The general feedback system that adopts quantized channel information in real system, to reduce feedback overhead and feedback delay.The quantification of channel information can be for channel matrix and statistic thereof, can be also the pretreatment parameter of receiver recommendation.Channel information, through after quantizing, is mapped in the set of finite element formation, and this set is called code book.
In order to make the mutual interference stability of minizone, to improve UE(subscriber equipment) report CQI(ChannelQuality Indicator, channel quality instruction) accuracy, Rel(version) provide a kind of signaling of being notified by high level in-8, in order to retrain the method for codebook subset.Particularly, the codebookSubsetRestriction(codebook subset constraint that UE is configured by high-level signaling) the PMI(Pre-coding MatrixIndicator that reports, pre-coding matrix instruction) and RI(Rank Indication, order is indicated).For a specific precoding codebook and relevant transmission mode, bitmap(bit map) can specify all precoding codebook possibilities.Codebook subset constraint can be for the precoding of open loop, Closed-Loop Spatial Multiplexing, multiuser MIMO and closed loop RI=1.
In order further to improve spectrum efficiency, the same time is served more UE as far as possible, has introduced MU-MIMO(Multiple-user MIMO, multi-user's multiple-input and multiple-output) technology, be in same resource, to dispatch multiple UE, make multiple UE share same resource, thereby improved the capacity of whole system.Base station, according to the business demand of UE and channel status, determines that UE is SU-MIMO(Single-user MIMO, alone family multiple-input and multiple-output) or MU-MIMO transmission.In standard, can realize the dynamic switching between SU-MIMO and MU-MIMO at present, without RRC(Radio Resource Control, Radio Resource control) signal deployment.Dynamically MIMO pattern is switched for improving link circuit self-adapting and dispatching flexibility very large importance, very frequent (as each subframe) of the switching between SU/MU.MU-MIMO, owing to being that multiple UE take identical resource, dispatches multiple users simultaneously, also means that multiple users will divide the power in this resource equally, and with respect to SU-MIMO transmission, transmitting power has obvious reduction.The factor of comprehensive two aspects, MU-MIMO is general adopts lower Rank to transmit, and existing feedback mechanism for SU-MIMO design, in the reasonable situation of channel condition, feedback CSI(channel condition information) in Rank(order) higher, be not suitable for MU-MIMO transmission, and the CSI accuracy of the low Rank that base station obtains after revising according to the CSI of high Rank is not high, and the performance of MU-MIMO is had a certain impact.
In sum, in the reasonable situation of channel condition, the Rank in the CSI of feedback is higher at present, and the CSI accuracy of the low Rank that base station obtains after revising according to the CSI of high Rank is not high, and the performance of MU-MIMO is had to larger impact.
Summary of the invention
The invention provides method, system and the equipment of a kind of MIMO scheduling, not high in order to solve the CSI accuracy of the low Rank obtaining after the base station existing in prior art is revised according to the CSI of high Rank, the performance of MU-MIMO is had to the problem of larger impact.
The method of a kind of MIMO scheduling that the embodiment of the present invention provides, comprising:
Network equipment sends the configuration information of N process to subscriber equipment, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Described network equipment, according to the CSI information of N process of subscriber equipment feedback, carries out SU-MIMO or MU-MIMO scheduling.
The method of a kind of MIMO scheduling that the embodiment of the present invention provides, comprising:
Subscriber equipment is according to the configuration information of the N from network equipment the process of receiving, determine the CSI information of N process, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Described subscriber equipment sends definite N CSI information to described network equipment.
The network equipment of a kind of MIMO scheduling that the embodiment of the present invention provides, comprising:
The first sending module, for send the configuration information of N process to subscriber equipment, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Scheduler module, for according to the CSI information of N process of subscriber equipment feedback, carries out SU-MIMO or MU-MIMO scheduling.
The subscriber equipment of a kind of MIMO scheduling that the embodiment of the present invention provides, comprising:
Determination module, the configuration information of the N from network equipment the process of receiving for basis, determine the CSI information of N process, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
The second sending module, for send definite N CSI information to described network equipment, so that described network equipment according to the CSI information of N process, carries out SU-MIMO or MU-MIMO scheduling.
The system of a kind of MIMO scheduling that the embodiment of the present invention provides, comprising:
Network equipment sends the configuration information of N process to subscriber equipment, according to the CSI information of N process of subscriber equipment feedback, carry out SU-MIMO or MU-MIMO scheduling, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Subscriber equipment, for according to the configuration information of the N from network equipment the process of receiving, determines the CSI information of N process, sends definite N CSI information to described network equipment.
Embodiment of the present invention network equipment sends the configuration information of N process to subscriber equipment, wherein N is positive integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes.Because the embodiment of the present invention can be fed back different Rank simultaneously, avoid because base station is according to the not high impact on MU-MIMO of accuracy of the low Rank obtaining after the CSI correction of high Rank, thereby can better support the transmission of MU-MIMO, improve systematic function.
Brief description of the drawings
Fig. 1 is the system configuration schematic diagram of embodiment of the present invention MIMO scheduling;
Fig. 2 is the schematic diagram of two progress feedback of embodiment of the present invention the first;
Fig. 3 is the schematic diagram of two progress feedback of embodiment of the present invention the second;
Fig. 4 is the schematic diagram of three progress feedback of the embodiment of the present invention;
Fig. 5 is the structural representation of network equipment in the system of embodiment of the present invention MIMO scheduling;
Fig. 6 is the structural representation of subscriber equipment in the system of embodiment of the present invention MIMO scheduling;
Fig. 7 is the method flow schematic diagram of embodiment of the present invention MIMO scheduling;
Fig. 8 is the method flow schematic diagram of embodiment of the present invention MIMO scheduling.
Embodiment
Embodiment of the present invention network equipment sends the configuration information of N process to subscriber equipment, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes.Because the embodiment of the present invention can be fed back different Rank simultaneously, avoid because base station is according to the not high impact on MU-MIMO of accuracy of the low Rank obtaining after the CSI correction of high Rank, thereby can better support the transmission of MU-MIMO, improve systematic function.
The process here refers to the link of feedback CSI, a corresponding CSI feedback link of process;
The transfer point here refers to the transmission equipment point of serving subscriber equipment, is mainly used in to user device transmissions data.A network side may have multiple transfer points.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
In declarative procedure below, first implement to describe from the cooperation of network side and user equipment side, finally describe from the enforcement of network side and user equipment side respectively, but this does not also mean that the two must coordinate enforcement, in fact, separate while implementing when network side and user equipment side, also solved respectively in network side, the existing problem of user equipment side, when just the two is combined with, can obtain better technique effect.
As shown in Figure 1, the system of embodiment of the present invention MIMO scheduling comprises: network equipment 10 and subscriber equipment 20.
The embodiment of the present invention is the multiple processes of UE configuration pin to same transfer point, and one of them process is transmitted and fed back for SU, and other processes are fed back for the low Rank of MU, realize reporting of many Rank, improves the performance of MU-MIMO.
Wherein, in the configuration information of process, include but not limited in following message partly or entirely:
CSI-RS(channel state information reference signals) port, pattern configuration, sub-frame configuration and interferometry resource.
Preferably, if the part or all of information in the CSI-RS port that the configuration information of N process comprises, pattern configuration, sub-frame configuration and interferometry resource, CSI-RS port, pattern configuration, sub-frame configuration that the configuration information of N process comprises are identical with interferometry resource.If such as the configuration information of N process comprises CSI-RS port, the CSI-RS port that configuration information of N process comprises is identical; If the configuration information of N process comprises pattern configuration and sub-frame configuration, the pattern configuration that configuration information of N process comprises is identical, and the sub-frame configuration that the configuration information of N process comprises is identical.
Preferably, codebook subset constraint parameter normal configuration in the configuration information of the process of corresponding SU-MIMO transmission, the normal configuration here can, referring to 3GPP TS 36.213 agreements, not repeat them here; In the configuration information of the process of corresponding MU-MIMO transmission codebook subset constraint parameter configuration for the highest feedback Rank number be 1 or the i.e. low Rank of 2(), if such as codebook subset constraint parameter configuration is for the highest feedback Rank number is 1, retrains and can only report Rank 1; If codebook subset constraint parameter configuration, for the highest feedback Rank number is 2, retrains and reports Rank 1 or 2.
Accordingly, subscriber equipment 20, according to the Rank of codebook subset constraint restriction on the parameters in configuration information, is determined N CSI information.
Wherein, subscriber equipment 20 determines that according to the Rank of codebook subset constraint restriction on the parameters the concrete mode of corresponding CSI information can, referring to 3GPP TS 36.213 agreements, not repeat them here.
Wherein, PDSCH(Physical DownlinkShared Channel in the configuration information of corresponding MU-MIMO transmission, Physical Downlink Shared Channel) EPRE(energy per resource element, Resource Unit energy) and the ratio of CSI-RS EPRE be P
c-K;
Preferably, in the configuration information of corresponding MU-MIMO transmission, the ratio of PDSCH EPRE and CSI-RS EPRE is P
c-K.Wherein, P
cfor the PDSCH EPRE in the configuration information of corresponding SU-MIMO transmission and the ratio of CSI-RS EPRE; K is 0 or positive integer.
Accordingly, subscriber equipment 20 is determined corresponding CSI information according to the ratio of PDSCH EPRE and CSI-RSEPRE in the configuration information of N process.
Wherein, subscriber equipment 20 determines that according to the ratio of PDSCH EPRE and CSI-RS EPRE the concrete mode of corresponding CSI information can, referring to 3GPP TS 36.213 agreements, not repeat them here.
The PDSCH EPRE configuring in N process and the ratio of CSI-RS EPRE can be identical, also can be different.
Preferably, different K value difference corresponding to process in the configuration information of corresponding MU-MIMO transmission.The difference here can be entirely not identical or partly different.
Because subscriber equipment does not need to know corresponding which transmission of configuration information of process, so be P for ratio in the configuration information of a process of subscriber equipment
c, all the other N-1 process ratios are P
c-K; K is 0 or positive integer.
Preferably, the K value that the configuration information of all the other N-1 process is corresponding is different.The difference here can be entirely not identical or partly different.
In force, in the configuration information of process, can also comprise code book indication parameter.
Accordingly, subscriber equipment 20, according to the code book indication information in the configuration information of each process, is determined the code book that each process adopts, and is determined corresponding CSI information according to definite code book.
Wherein, subscriber equipment 20 determines that according to code book indication information the concrete mode of corresponding CSI information can, referring to 3GPP TS 36.213 agreements, not repeat them here.
In force, subscriber equipment 20 can also be determined corresponding CSI information according at least two in the ratio of code book indication information, codebook subset constraint parameter and PDSCH EPRE and CSI-RS EPRE, concrete mode can, referring to 3GPP TS 36.213 agreements, not repeat them here.
Wherein, the code book indication parameter in the configuration information of the process of the code book indication parameter in the configuration information of the process of corresponding SU-MIMO transmission and MU-MIMO transmission can be identical, also can be different.
At present in 3GPP agreement, under every kind of antenna port configuration, only have a kind of code book, follow-uply may introduce feedback enhanced scheme, as designed a kind of new enhancing code book under 4 antenna ports, to improve the precision of terminal feedback, be mainly used in improving the performance of MU-MIMO transmission.
Preferably, can indicate and adopt the enhancing code book that MU performance is increased, and adopt original code book for the process instruction of SU transmission for the process of MU transmission, original code book here can, referring to 3GPP 36.211 and 36.213 agreements, not repeat them here.
It should be noted that, the information that the configuration information of embodiment of the present invention process comprises is not limited to the above-mentioned information of enumerating, as long as N process is that any information arranging for same transfer point is all suitable for the bright embodiment of this law.
Wherein, network equipment 10 can pass through the configuration information of 20N process of high-level signaling notifying user equipment;
Then, network equipment, according to the CSI information of N process of subscriber equipment feedback, carries out SU-MIMO or MU-MIMO scheduling and transmission.
Wherein, the network equipment of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also RN(relaying) equipment can also be other network equipment.
Row give some instances the solution of the present invention are described below.
Example one, 2 processes of base station configuration, in 2 processes, except the parameter of codebook subset constraint, all the other parameters are all identical, and the codebook subset of one of them process normally retrains, and another process is restricted to the CSI information that only reports Rank1, as shown in Figure 2.
Example two, 2 processes of base station configuration, in 2 processes except the parameter of codebook subset constraint, all the other parameters are all identical, the codebook subset of one of them process normally retrains, another process is restricted to the CSI information that the highest feedback Rank is 2, report the RI/PMI/CQI of Rank1/2, as shown in Figure 3.
Example three, 3 processes of base station configuration, in 3 processes except the parameter of codebook subset constraint, all the other parameters are all identical, the codebook subset of one of them process normally retrains, a process is restricted to the PMI/CQI that only reports Rank1, last is constrained to the PMI/CQI that reports Rank1/2, as shown in Figure 4.
Example four, 2 processes of base station configuration, in 2 processes, except the ratio parameter of codebook subset constraint and PDSCH EPRE and CSI-RS EPRE, all the other parameters are all identical, and the codebook subset of one of them process normally retrains, and ratio parameter is set to P
c, another process is restricted to the RI/PMI/CQI that only reports Rank1, and ratio parameter is set to P
c-K, preferably, K=3 or 6, wherein P
cwith K be all dB value.Process 1 is fed back the RI/PMI/CQI for the normal Rank of SU transmission, for SU scheduling, and the Rank number of process 2 limit feedback, the RI/PMI/CQI of feedback Rank1, dispatches for MU.Because concerning subscriber equipment, MU transmission can reduce with respect to the transmitted power of SU transmission base station, and in order to obtain for the CQI after reducing, process 2 arranges odds ratio process 1 little 3 or the 6dB of PDSCH EPRE and CSI-RS EPRE.Base station notifies UE need to feed back 2 processes by high-level signaling, and the configuration information of each process.It should be noted that PDSCH EPRE in another process configuration information of base station notice UE and the ratio parameter of CSI-RS EPRE are P
cthe value of-K, and do not need to notify the value of K.Subscriber equipment receives the configuration information of 2 processes, calculates the CSI of 2 processes, and feed back according to configuration information.Base station receives CSI information MIMO scheduling and the transmission of 2 processes of subscriber equipment feedback.
Example five, 2 processes of base station configuration, in 2 processes, except the ratio parameter of codebook subset constraint and PDSCH EPRE and CSI-RS EPRE, all the other parameters are all identical, and the codebook subset of one of them process normally retrains, and ratio parameter is set to P
c, the highest feedback Rank number of another process restriction is 2, reports the RI/PMI/CQI of Rank1/2, ratio parameter is set to P
c-K, preferably, K=3 or 6, wherein P
cwith K be all dB value.
Example six, 2 processes of base station configuration, increase the parameter that code book is indicated in the configuration information of process, as increased the parameter of 1bit, bit 0 represents to adopt original code book, and bit 1 represents that employing strengthens code book, can certainly be conversely.2 original configuration informations of process are except codebook subset constraint parameter, all the other parameters are all identical, the code book indication parameter of one of them process is set to adopt original code book, codebook subset normally retrains, another process code book indication parameter is set to adopt the code book strengthening, and codebook subset constraint parameter limit is the CSI information that only reports Rank1.
Example seven, 2 processes of base station configuration, increase the parameter that code book is indicated in the configuration information of process, as increased the parameter of 1bit, bit 0 represents to adopt original code book, and bit 1 represents that employing strengthens code book, can certainly be conversely.2 original configuration informations of process are except the ratio parameter of codebook subset constraint and PDSCH EPRE and CSI-RS EPRE, all the other parameters are all identical, the code book indication parameter of one of them process is set to adopt original code book, and codebook subset normally retrains, and ratio parameter is set to P
c; Another process code book indication parameter is set to adopt the code book strengthening, and codebook subset constraint parameter limit is the PMI/CQI that only reports Rank1, and ratio parameter is set to P
c-K, preferably, K=3 or 6.
As shown in Figure 5, the network equipment in the system of embodiment of the present invention MIMO scheduling comprises: the first sending module 500 and scheduler module 510.
The first sending module 500, for send the configuration information of N process to subscriber equipment, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Preferably, the configuration information of N process comprises CSI-RS port, pattern configuration, sub-frame configuration are identical with interferometry resource.
Preferably, in the configuration information of the process of corresponding MU-MIMO transmission codebook subset constraint parameter configuration for the highest feedback Rank number be 1 or 2.
Preferably, in the configuration information of corresponding MU-MIMO transmission, the ratio of PDSCH EPRE and CSI-RS EPRE is P
c-K;
Wherein, P
cfor the PDSCH EPRE in the configuration information of corresponding SU-MIMO transmission and the ratio of CSI-RSEPRE; K is 0 or positive integer.
Preferably, different K value difference corresponding to process in the configuration information of corresponding MU-MIMO transmission.
Preferably, the configuration information of process comprises code book indication parameter.
Preferably, the code book indication parameter in the configuration information of the code book indication parameter in the configuration information of the process of corresponding SU-MIMO transmission and the process of MU-MIMO transmission is different.
As shown in Figure 6, the subscriber equipment in the system of embodiment of the present invention MIMO scheduling comprises: determination module 600 and the second sending module 610.
The second sending module 610, for send definite N CSI information to network equipment, so that network equipment according to the CSI information of N process, carries out SU-MIMO or MU-MIMO scheduling.
Preferably, the CSI-RS port in the configuration information of N process, pattern configuration, sub-frame configuration are identical with interferometry resource.
Preferably, determination module 600, according to the Rank of codebook subset constraint restriction on the parameters in configuration information, is determined N CSI information.
Preferably, determination module 600 is determined corresponding CSI information according to the ratio of PDSCH EPRE and CSI-RSEPRE in the configuration information of N process;
Wherein, in the configuration information of a process, ratio is P
c, all the other N-1 process ratios are P
c-K; K is 0 or positive integer.
Preferably, the K value that the configuration information of all the other N-1 process is corresponding is different.
Preferably, determination module 600, according to the code book indication information in the configuration information of each process, is determined the code book that each process adopts, and is determined corresponding CSI information according to definite code book.
Based on same inventive concept, a kind of method of MIMO scheduling is also provided in the embodiment of the present invention, because equipment corresponding to the method is the network equipment in the system of embodiment of the present invention MIMO scheduling, and the principle that the method is dealt with problems and this unit affinity, therefore the enforcement of the method can be referring to the enforcement of equipment, repeats part and repeat no more.
As shown in Figure 7, the method for embodiment of the present invention MIMO scheduling comprises the following steps:
Preferably, the configuration information of N process comprises CSI-RS port, pattern configuration, sub-frame configuration are identical with interferometry resource.
Preferably, in the configuration information of the process of corresponding MU-MIMO transmission codebook subset constraint parameter configuration for the highest feedback Rank number be 1 or 2.
Preferably, in the configuration information of corresponding MU-MIMO transmission, the ratio of PDSCH EPRE and CSI-RS EPRE is P
c-K;
Wherein, P
cfor the PDSCH EPRE in the configuration information of corresponding SU-MIMO transmission and the ratio of CSI-RSEPRE; K is 0 or positive integer.
Preferably, different K value difference corresponding to process in the configuration information of corresponding MU-MIMO transmission.
Preferably, the configuration information of process comprises code book indication parameter.
Preferably, the code book indication parameter in the configuration information of the code book indication parameter in the configuration information of the process of corresponding SU-MIMO transmission and the process of MU-MIMO transmission is different.
Based on same inventive concept, a kind of method of MIMO scheduling is also provided in the embodiment of the present invention, because equipment corresponding to the method is the subscriber equipment in the system of embodiment of the present invention MIMO scheduling, and the principle that the method is dealt with problems and this unit affinity, therefore the enforcement of the method can be referring to the enforcement of equipment, repeats part and repeat no more.
As shown in Figure 8, the method for embodiment of the present invention MIMO scheduling comprises the following steps:
Step 801, subscriber equipment are according to the configuration information of the N from network equipment the process of receiving, determine the CSI information of N process, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Step 802, subscriber equipment send definite N CSI information to network equipment, so that network equipment according to the CSI information of N process, carries out SU-MIMO or MU-MIMO scheduling.
Preferably, the CSI-RS port in the configuration information of N process, pattern configuration, sub-frame configuration are identical with interferometry resource.
Preferably, subscriber equipment, according to the Rank of codebook subset constraint restriction on the parameters in configuration information, is determined N CSI information.
Preferably, subscriber equipment is determined corresponding CSI information according to the ratio of PDSCH EPRE and CSI-RSEPRE in the configuration information of N process;
Wherein, in the configuration information of a process, ratio is P
c, all the other N-1 process ratios are P
c-K; K is 0 or positive integer.
Preferably, the K value that the configuration information of all the other N-1 process is corresponding is different.
Preferably, subscriber equipment, according to the code book indication information in the configuration information of each process, is determined the code book that each process adopts, and is determined corresponding CSI information according to definite code book.
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 (27)
1. a method for multiple-input and multiple-output MIMO scheduling, is characterized in that, the method comprises:
Network equipment sends the configuration information of N channel condition information process to subscriber equipment, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding alone family multiple-input and multiple-output SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding multi-user's multiple-input and multiple-output of the configuration information MU-MIMO transmission of other processes;
Described network equipment, according to the CSI information of N process of subscriber equipment feedback, carries out SU-MIMO or MU-MIMO scheduling.
2. the method for claim 1, is characterized in that, channel state information reference signals CSI-RS port, pattern configuration, sub-frame configuration that the configuration information of a described N process comprises are identical with interferometry resource.
3. the method for claim 1, is characterized in that, in the configuration information of the process of corresponding MU-MIMO transmission codebook subset constraint parameter configuration for the highest feedback order Rank number be 1 or 2.
4. the method for claim 1, is characterized in that, in the configuration information of corresponding MU-MIMO transmission, the ratio of Physical Downlink Shared Channel Resource Unit energy PDSCH EPRE and CSI-RS EPRE is Pc-K;
Wherein, Pc is described PDSCH EPRE in the configuration information of corresponding SU-MIMO transmission and the ratio of CSI-RS EPRE; K is 0 or positive integer.
5. method as claimed in claim 4, is characterized in that, different K value difference corresponding to process in the configuration information of corresponding MU-MIMO transmission.
6. the method for claim 1, is characterized in that, the configuration information of process comprises code book indication parameter.
7. method as claimed in claim 6, is characterized in that, the code book indication parameter in the configuration information of the code book indication parameter in the configuration information of the process of corresponding SU-MIMO transmission and the process of MU-MIMO transmission is different.
8. a method for MIMO scheduling, is characterized in that, the method comprises:
Subscriber equipment is according to the configuration information of the N from network equipment the process of receiving, determine the CSI information of N process, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Described subscriber equipment sends definite N CSI information to described network equipment, so that described network equipment according to the CSI information of N process, carries out SU-MIMO or MU-MIMO scheduling.
9. method as claimed in claim 8, is characterized in that, the CSI-RS port in the configuration information of a described N process, pattern configuration, sub-frame configuration are identical with interferometry resource.
10. method as claimed in claim 8, is characterized in that, described subscriber equipment is determined CSI information, comprising:
Described subscriber equipment, according to the Rank of codebook subset constraint restriction on the parameters in configuration information, is determined N CSI information.
11. methods as claimed in claim 8, is characterized in that, described subscriber equipment is determined CSI information, comprising:
Described subscriber equipment is determined corresponding CSI information according to the ratio of PDSCH EPRE in the configuration information of N process and CSI-RS EPRE;
Wherein, the ratio of PDSCH EPRE described in the configuration information of a process and CSI-RS EPRE is Pc, and described in the configuration information of all the other N-1 process, the ratio of PDSCH EPRE and CSI-RS EPRE is Pc-K; K is 0 or positive integer.
12. methods as claimed in claim 11, is characterized in that, the K value difference corresponding to configuration information of described all the other N-1 process.
13. methods as claimed in claim 8, is characterized in that, described subscriber equipment is determined CSI information, comprising:
Described subscriber equipment, according to the code book indication information in the configuration information of each process, is determined the code book that each process adopts, and is determined corresponding CSI information according to definite code book.
The network equipment of 14. 1 kinds of MIMO scheduling, is characterized in that, this network equipment comprises:
The first sending module, for send the configuration information of N process to subscriber equipment, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Scheduler module, for according to the CSI information of N process of subscriber equipment feedback, carries out SU-MIMO or MU-MIMO scheduling.
15. network equipments as claimed in claim 14, is characterized in that, CSI-RS port, pattern configuration, sub-frame configuration that the configuration information of a described N process comprises are identical with interferometry resource.
16. network equipments as claimed in claim 14, is characterized in that, in the configuration information of the process of corresponding MU-MIMO transmission codebook subset constraint parameter configuration for the highest feedback Rank number be 1 or 2.
17. network equipments as claimed in claim 14, is characterized in that, in the configuration information of corresponding MU-MIMO transmission, the ratio of PDSCH EPRE and CSI-RS EPRE is Pc-K;
Wherein, Pc is described PDSCH EPRE in the configuration information of corresponding SU-MIMO transmission and the ratio of CSI-RS EPRE; K is 0 or positive integer.
18. network equipments as claimed in claim 17, is characterized in that, different K value difference corresponding to process in the configuration information of corresponding MU-MIMO transmission.
19. network equipments as claimed in claim 14, is characterized in that, the configuration information of process comprises code book indication parameter.
20. network equipments as claimed in claim 19, is characterized in that, the code book indication parameter in the configuration information of the code book indication parameter in the configuration information of the process of corresponding SU-MIMO transmission and the process of MU-MIMO transmission is different.
The subscriber equipment of 21. 1 kinds of MIMO scheduling, is characterized in that, this subscriber equipment comprises:
Determination module, the configuration information of the N from network equipment the process of receiving for basis, determine the CSI information of N process, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
The second sending module, for send definite N CSI information to described network equipment, so that described network equipment according to the CSI information of N process, carries out SU-MIMO or MU-MIMO scheduling.
22. subscriber equipmenies as claimed in claim 21, is characterized in that, the CSI-RS port in the configuration information of a described N process, pattern configuration, sub-frame configuration are identical with interferometry resource.
23. subscriber equipmenies as claimed in claim 21, is characterized in that, described determination module specifically for:
According to the Rank of codebook subset constraint restriction on the parameters in configuration information, determine N CSI information.
24. subscriber equipmenies as claimed in claim 21, is characterized in that, described determination module specifically for:
Determine corresponding CSI information according to the ratio of PDSCH EPRE in the configuration information of N process and CSI-RS EPRE;
Wherein, the ratio of PDSCH EPRE described in the configuration information of a process and CSI-RS EPRE is Pc, and the described PDSCH EPRE of all the other N-1 process and the ratio of CSI-RS EPRE are Pc-K; K is 0 or positive integer.
25. subscriber equipmenies as claimed in claim 24, is characterized in that, the K value difference corresponding to configuration information of described all the other N-1 process.
26. subscriber equipmenies as claimed in claim 21, is characterized in that, described determination module specifically for:
According to the code book indication information in the configuration information of each process, determine the code book that each process adopts, and determine corresponding CSI information according to definite code book.
The system of 27. 1 kinds of MIMO scheduling, is characterized in that, this system comprises:
Network equipment sends the configuration information of N process to subscriber equipment, according to the CSI information of N process of subscriber equipment feedback, carry out SU-MIMO or MU-MIMO scheduling, wherein N is not less than 2 integer, the corresponding same transfer point of configuration information of N process, the corresponding SU-MIMO transmission of the configuration information of a process in the configuration information of N process, the corresponding MU-MIMO transmission of configuration information of other processes;
Subscriber equipment, for according to the configuration information of the N from network equipment the process of receiving, determines the CSI information of N process, sends definite N CSI information to described network equipment.
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