CN110034788A

CN110034788A - The measurement method and device of channel state information

Info

Publication number: CN110034788A
Application number: CN201810032250.1A
Authority: CN
Inventors: 梁津垚; 黄逸; 祝慧颖; 李元杰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-01-12
Filing date: 2018-01-12
Publication date: 2019-07-19
Anticipated expiration: 2038-01-12
Also published as: CN110034788B; WO2019137445A1

Abstract

This application provides a kind of measurement method of channel state information and devices, this method comprises: terminal device receives the first instruction information that the network equipment is sent, which is used to indicate M code book, and M is the integer greater than 1；The terminal device carries out CSI measurement based on the M code book, obtains L CSI according to the first instruction information, at least one CSI in the L CSI is obtained based on the M code book, and L is the integer greater than 0.Using the measurement method and device of channel state information provided by the present application, be conducive to the accuracy for improving CSI measurement, and then improve data transfer performance.

Description

The measurement method and device of channel state information

Technical field

This application involves the communications fields, and more particularly, to the measurement method of channel state information in the communications field And device.

Background technique

Cooperative multi-point (coordination multiple point, CoMP) transmission is a kind of dry for solving minizone The method disturbed problem and promote cell edge user throughput.In CoMP transmission scene, multiple network equipments can simultaneously with One terminal device is communicated, the main cooperation in order to realize the cooperation transmission of multiple network equipments, in multiple network equipment The network equipment need to know each network equipment to terminal device down channel channel situation.

Channel state information (channel state information, CSI) is for indicating communication link in communication system Channel attribute, in downlink transfer, the network equipment can send channel state information reference signals (channel state Information reference signal, CSI-RS), down channel is measured for terminal device.In general, Terminal device can be by the CSI feedback measured to the network equipment, so that the network equipment be made to know the channel status of down channel.

Specifically, in existing CSI measurement method, the network equipment indicates CSI-RS resource and code book to terminal device, The terminal device is based on the CSI-RS resource and code book carries out CSI measurement, obtains the CSI of the channel.

However, in CoMP transmission scene, it is different when multiple network equipments carry out data transmission with terminal device simultaneously It may be interfered with each other between channel, therefore, CSI measurement be carried out using existing method, the accuracy of CSI is lower, to influence Data transmission performance.

Summary of the invention

The application provides the measurement method and device of a kind of channel state information, is conducive to the accuracy for improving CSI measurement, And then improve data transfer performance.

In a first aspect, the application provides the measurement method of channel state information CSI a kind of, this method comprises:

Terminal device receives the first instruction information that the network equipment is sent, which is used to indicate M code book, M is the integer greater than 1；

The terminal device carries out CSI measurement based on the M code book, obtains L CSI, the L according to the first instruction information At least one CSI in a CSI is obtained based on the M code book, and L is the integer greater than 0.

The measurement method of channel state information provided by the embodiments of the present application, since terminal device is indicated based on the network equipment M code book carry out CSI measurement, obtain L CSI, that is to say, that at least one of the L CSI be based on the M code book What measurement obtained, be conducive to the accuracy for improving CSI measurement, and then improve data transfer performance.

Optionally, which indicates a kind of possible implementation of M code book are as follows: the first instruction information In include each code book in the M code book codebook configuration information, i.e., include that M codebook configuration is believed in the first instruction information Breath.

Optionally, which is used to indicate M code book, it can be understood as the first instruction information instruction M The codebook configuration information of code book or the first instruction information indicate the code book type of each code book in the M code book, each code The CSR of this codebook parameter and each code book.

Wherein, codebook configuration information is used to indicate at least one in following message: code book type, codebook parameter and code book Subset limits (codebook subset restriction, CSR).

Optionally, M codebook configuration information can be carried on high-level signaling (such as wireless heterogeneous networks (radio Resource control, RRC) message) in, such as be carried in RRC information and report configuration (reporting setting) Field or the M codebook configuration information can carry media intervention control (media access control, MAC) control In element (control element, CE) signaling or the codebook configuration information can also be carried in other signalings, this Shen Please embodiment this is not construed as limiting.

Wherein, code book type can select code book (type I code book) or base vector to combine code book (type II code for vector This, is generally used for high-acruracy survey feedback)；Codebook parameter may include: the port number (port number including the first dimension The port number (such as N2) of (such as N1) and the second dimension), panel number, wave beam number, subband amplitude, sample size, phase At least one of in position size and codebook subset limitation etc..

It optionally, may include the code book type of at least one code book in the M code book in the first instruction information.

It optionally, may include the codebook parameter of at least one code book in the M code book in the first instruction information.

It optionally, may include the codebook subset limitation of at least one code book in the M code book in the first instruction information.

With reference to first aspect, in the first possible implementation of the first aspect, which is also used to Instruction carries out channel state information CSI measurement based on the M code book.

Optionally, which can be indicated by way of display instruction or implicit instruction based on the M code This progress CSI measurement, the embodiment of the present application are not construed as limiting this.

(1) show indicating mode: the first instruction information includes the M codebook configuration information and second indication information, The second indication information, which is used to indicate, carries out CSI measurement based on the M code book.

Optionally, which may include at least one bit, is based on by least one bit indication The M code book carries out CSI measurement.

Optionally, which, which may be used to indicate that, carries out CSI survey based on multiple code books in the M code book Amount.

Optionally, the M codebook configuration information and the second indication information can be carried in the same signaling；Or it should M codebook configuration information is carried in the first signaling, which is carried in the second signaling, the embodiment of the present application pair This is not construed as limiting.

(2) implicit instruction mode: including the M codebook configuration information in the first instruction information, the M codebook configuration letter Breath indicates that the terminal device is based on the M code book and carries out CSI measurement.

In other words, in the case where showing instruction: the first instruction information include the M codebook configuration information with this Two instruction information；In the case where implicit instruction: the first instruction information is exactly the M codebook configuration information.

That is, when the network equipment simultaneously or disposably to terminal equipment configuration multiple M code books when, instruction terminal equipment CSI measurement is carried out based on the M code book.

The measurement method of channel state information provided by the embodiments of the present application, which can be by explicitly referring to Show or implicit mode indicates to carry out CSI measurement based on M code book, can be improved the flexibility of the instruction.

With reference to first aspect or the first possible implementation of first aspect, second in first aspect are possible In implementation, which carries out CSI measurement based on the M code book, comprising: the terminal according to the first instruction information Equipment carries out the CSI measurement based on the corresponding relationship between the M code book, N number of resource and the M code book and N number of resource, The resource includes channel state information reference signals CSI-RS resource, CSI-RS resource set, CSI-RS resource group or CSI-RS At least one of in port set, N is the integer greater than 1.

In one possible implementation, M=N can be understood as resource and code book is one-to-one relationship, for example, UE receives the resource allocation information of 2 resources and the codebook configuration information of 2 code books, then first code book can correspond to first Resource, second code book can correspond to second resource.

In one possible implementation, N > M can be understood as the corresponding code book of multiple resources, for example, UE is received Configuration information include 4 resources, 2 code books, then first code book can correspond to first and second resource, second code Originally third and the 4th resource can be corresponded to, alternatively, corresponding first of first code book is for the resource of channel measurement and the One is used for the resource of interference measurement, and second code book corresponding second for the resource of channel measurement and second for interfering The resource of measurement, alternatively, first code book corresponding first is used for channel measurement for the resource of channel measurement and second Resource, second code book corresponding first is used for the resource of interference measurement for the resource of interference measurement and second.

In one possible implementation, N < M can be understood as a resource and correspond to multiple code books, for example, CSI-RS Resource may include multiple port sets, and port set and code book are one-to-one relationships, for example, CSI-RS resource includes 2 non- The CSI-RS port set of QCL, 2 port sets in received 2 code books of UE and a CSI-RS resource correspond.N is less than M It can be appreciated that N number of corresponding with N number of resource in M code book, for example, UE has received 2 resources and 3 code books, then first A code book and first resource are corresponding, and second code book and second resource are corresponding.

Optionally, what above-described embodiment was merely exemplary provides the corresponding relationship of N number of resource and the M code book, the application Embodiment should not be so limited to this, and N number of resource and M code book can also have other corresponding relationships, and the embodiment of the present application is to this It is not construed as limiting.

It should be understood that first code book described in the embodiment of the present application and second code book (and third code book ...) can Think according to codebook configuration information sequencing determine, or can according to the sequencing of terminal equipment configuration determine , or this can be not construed as limiting according to the determining the embodiment of the present application of other rules.

It should also be understood that first resource and second resource (and third resource ...) described in the embodiment of the present application It can be determining according to the sequencing of the resource allocation information, or can be true according to the sequencing of terminal equipment configuration Fixed, or this can be not construed as limiting according to the determining the embodiment of the present application of other rules.

It should also be understood that described in the embodiment of the present application first report configuration and second reports configuration (and third It is a to report configuration ...) it can be to report the sequencing of configuration information to determine according to this, or can match according to terminal device What the sequencing set determined, or this can be not construed as limiting according to the determining the embodiment of the present application of other rules.

That is, at least one CSI in the L CSI is based on the M code book, N number of resource and the M code book What the corresponding relationship between N number of resource determined.

It wherein, may include the resource for channel measurement and the resource for interference measurement in N number of resource.

Optionally, which can receive the resource distribution of each resource in N number of resource of network equipment transmission Information.That is, the terminal device can receive N number of resource allocation information of network equipment transmission, N number of resource distribution Information is for configuring N number of resource.

Optionally, which can be carried on high-level signaling (such as wireless heterogeneous networks (radio Resource control, RRC) message) in, such as resource distribution (resource setting) field can be carried on.

Optionally, the corresponding relationship between N number of resource and the M code book can be predetermined or can be logical The high-level signaling instruction of network equipment transmission is crossed, such as corresponding relationship can be only fitted to measuring assembly (measurement Setting it also can be only fitted to resource distribution (resource setting) in) or report configuration (reporting setting) In, the embodiment of the present application is not construed as limiting this.

The possible implementation of second with reference to first aspect, in the third possible implementation of first aspect In, each code book in the M code book is corresponding at least one resource in N number of resource, which includes the One resource, the first resource are used for channel measurement.

With reference to first aspect, any possible reality of the first of first aspect into the third possible implementation In existing mode, in a fourth possible implementation of the first aspect, which is based on according to the first instruction information The M code book carries out CSI measurement, comprising: the terminal device is based on the M code book, obtains diagonal block matrix；The terminal device base In the diagonal block matrix, the CSI measurement is carried out.

Specifically, which can be based on the M code book, obtain diagonal block matrix, and according to the diagonal blocks square Battle array carries out CSI measurement.

In one possible implementation, which can obtain diagonal block matrix, root according to the M code book Go out M channel matrix according to the M resource estimations for channel measurement in N number of resource, and according to the M channel matrix and is somebody's turn to do Diagonal block matrix, obtains equivalent channel matrix；According to the equivalent channel matrix and the M code book, the L CSI is obtained, wherein should M code book and the M resources for channel measurement have corresponding relationship.

In one possible implementation, it is assumed that 2 cooperation transmission of the network equipment 1 and the network equipment, terminal device according to The CSI-RS that the network equipment 1 is sent estimates channel matrix H 1, estimates channel matrix H 2 according to the CSI-RS that the network equipment 2 is sent, The network equipment 1 is configured with code book W1, and the network equipment 2 is configured with code book W2.Wherein, W1=[v₁₁ v₁₂ … v_1n], W2=[v₂₁ v₂₂ … v_2m], vjk indicates optional pre-coding matrix, 1≤j≤n, 1≤k≤m.

The first instruction information indicates 2 code books, in CoMP transmission scene,

The diagonal block matrix that W1 and W2 is formed

Then the terminal device obtains equivalent channel matrix H3 according to W1, W2, H1 and the H2 can be obtained by following formula:

The terminal device is using the H3 as the channel matrix of each channel in the CoMP transmission scene, and according to the H3 and every The code book of a channel configuration determines pre-coding matrix used in each channel, i.e., the 1st pre-coding matrix is in the 1st code book In choose, the 2nd pre-coding matrix chooses in the 2nd code book.For example, the terminal device determine UE it is confirmed thatThis network equipment 1 uses pre-coding matrix v₁₂And the network equipment 2 uses pre-coding matrix v₂₃When system throughput it is total And maximum, data transmission performance are more preferable.

In other words, which can be based on the M code book and the equivalent channel matrix, in t-th of code book really Make t-th of CSI, wherein 0≤t≤M.

The measurement method of CSI provided by the embodiments of the present application, due to equivalent channel matrix be according to the M channel matrix and What the diagonal block matrix obtained, the precoding weight for including in M code book is carried, can be characterized to a certain extent Therefore the channel situation of communication system entirety in CoMP transmission scene is carried out according to the equivalent channel matrix and the M code book CSI measurement, can be improved the accuracy of CSI and the throughput of communication system, and then the rate of improve data transfer.

With reference to first aspect, any possible reality of the first of first aspect into the 4th kind of possible implementation In existing mode, in the fifth possible implementation of the first aspect, this method further include:

The terminal device sends K CSI in the L CSI to the network equipment, and K is the integer greater than 0, and K be less than or Equal to L.

That is, CSI measurement some or all of can be obtained CSI by the terminal device is reported to the network equipment.

The 5th kind of possible implementation with reference to first aspect, in the 6th kind of possible implementation of first aspect In, which sends K CSI in the L CSI to the network equipment, comprising:

The terminal device is based on a CSI and reports configuration, sends CSI feedback information, CSI feedback letter to the network equipment Breath is for feeding back the K CSI.

The measurement method of channel state information provided by the embodiments of the present application, terminal device are reported by one and are configured to this The network equipment sends CSI feedback information, can reduce the expense of signaling.

The 6th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation of first aspect In, it include the K CSI in the CSI feedback information；Or

Include each CSI in the K CSI in addition to the first CSI when K is greater than 1, in the CSI feedback information with this first The difference of CSI and the first CSI, the first CSI is determined according to preset rules.

It should be understood that terminal device reports configuration by one, K CQI, K PMI, K LI, K are reported to the network equipment The mode of CRI is similar with K RI, and to avoid repeating, details are not described herein again.

Optionally, joint feedback can refer to that the cascade feed back of K RI, such as multiple RI carry out concatenated in order feedback, the CSI Feedback information can indicate [RI₁,RI₂,…,RI_K], i.e., the bit length of the CSI feedback information is RI₁To RI_KBit length Summation.

Optionally, joint feedback can also refer to the combined coding feedback to K CSI, the bit length of the CSI feedback information It can be determined according to the bit length of each RI in the K RI and the parameter configuration of code book.

Optionally, joint feedback can also refer to the differential feedback of K CSI, it is assumed that RI₁For benchmark RI, then the CSI feedback is believed Breath can be expressed as [RI₁,ΔRI₂,ΔRI₃,…,ΔRI_k], wherein Δ RI_kThe difference of k-th RI and the 1st RI of expression, 1≤ k≤K。

Optionally, if each CSI includes in RI, PMI, CQI, LI and CRI in multiple CSI that the terminal device reports When multiple, which above-mentioned joint feedback can be carried out as unit of each CSI or the terminal device can be with CSI The type of parameter is that unit carries out above-mentioned joint feedback, and the embodiment of the present application is not construed as limiting this.

Second aspect, the application provide the measurement method of channel state information CSI a kind of, this method comprises:

The network equipment sends the first instruction information to terminal device, which is used to indicate M code book, and M is Integer greater than 1；

The network equipment receives K CSI of terminal device transmission, at least one CSI in the K CSI is based on the M What a code book obtained, K is the integer greater than 0.

In conjunction with second aspect, in the first possible implementation of the second aspect, this method further include:

The network equipment sends resource allocation information to the terminal device, which is used to indicate N number of resource, The resource includes channel state information reference signals CSI-RS resource, CSI-RS resource set, CSI-RS resource group or CSI-RS At least one of in port set, N is the integer greater than 1.

In conjunction with the first possible implementation of second aspect, in second of possible implementation of second aspect In, each code book in the M code book is corresponding at least one resource in N number of resource, which includes the One resource, the first resource are used for channel measurement.

In conjunction with the first or second of possible implementation of second aspect, second aspect, in the third of second aspect In the possible implementation of kind, this method further include:

The network equipment reports configuration information to terminal device transmission, this reports configuration information to be used to indicate a CSI Report configuration；

The network equipment receives K CSI of terminal device transmission, comprising:

The network equipment receives the CSI feedback information that the terminal device reports configuration to send based on the CSI, the CSI feedback Information is for feeding back the K CSI.

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect In,

It include one or more CSI in the CSI feedback information；Or

The third aspect, this application provides the measuring devices of channel state information CSI a kind of, for executing above-mentioned first party Method in any possible implementation of face or first aspect.

Fourth aspect, this application provides the measuring devices of channel state information CSI a kind of, for executing above-mentioned second party Method in any possible implementation of face or second aspect.

5th aspect, this application provides the measuring device of channel state information CSI a kind of, the device include: memory, Processor, transceiver and it is stored in the instruction that can be run on the memory and on the processor, wherein the memory, at this It is communicated with each other between reason device and the communication interface by internal connecting path, which is characterized in that the processor executes the instruction So that the device realizes the method in any possible implementation of above-mentioned first aspect or first aspect.

6th aspect, this application provides the measuring device of channel state information CSI a kind of, the device include: memory, Processor, transceiver and it is stored in the instruction that can be run on the memory and on the processor, wherein the memory, at this It is communicated with each other between reason device and the communication interface by internal connecting path, which is characterized in that the processor executes the instruction So that the device realizes the method in any possible implementation of above-mentioned second aspect or second aspect.

7th aspect, this application provides a kind of computer-readable mediums, for storing computer program, the computer journey Sequence includes for realizing the instruction of the method in any possible implementation of above-mentioned first aspect or first aspect.

Eighth aspect, this application provides a kind of computer-readable mediums, for storing computer program, the computer journey Sequence includes for realizing the instruction of the method in any possible implementation of above-mentioned second aspect or second aspect.

9th aspect, this application provides a kind of computer program products comprising instruction, when it runs on computers When, so that computer realizes the method in any possible implementation of above-mentioned first aspect or first aspect.

Tenth aspect, this application provides a kind of computer program products comprising instruction, when it runs on computers When, so that computer realizes the method in any possible implementation of above-mentioned second aspect or second aspect.

Tenth on the one hand, and this application provides a kind of chip apparatus, comprising: input interface, output interface, at least one Device, memory are managed, it is mutual by internal connecting path between the input interface, output interface, the processor and the memory Communication, which is used to execute the code in the memory, when the processor executes the code, in chip apparatus realization State the method in any possible implementation of first aspect or first aspect.

12nd aspect, this application provides a kind of chip apparatus, comprising: input interface, output interface, at least one Device, memory are managed, it is mutual by internal connecting path between the input interface, output interface, the processor and the memory Communication, which is used to execute the code in the memory, when the processor executes the code, in chip apparatus realization State the method in any possible implementation of second aspect or second aspect.

Detailed description of the invention

Fig. 1 is the schematic diagram of communication system provided by the embodiments of the present application；

Fig. 2 is the schematic flow chart of the measurement method of channel state information provided by the embodiments of the present application；

Fig. 3 is the schematic block diagram of the measuring device of channel state information provided by the embodiments of the present application；

Fig. 4 is the schematic block diagram of the measuring device of another channel state information provided by the embodiments of the present application；

Fig. 5 is the schematic block diagram of the measuring device of another channel state information provided by the embodiments of the present application；

Fig. 6 is the schematic block diagram of the measuring device of another channel state information provided by the embodiments of the present application.

Specific embodiment

Below in conjunction with attached drawing, the technical solution in the application is described.

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: global system for mobile telecommunications (Global System of Mobile communication, GSM) system, CDMA (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system System, General Packet Radio Service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD), Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS), global interconnection inserting of microwave (Worldwide Interoperability For Microwave Access, WiMAX) communication system, following the 5th generation (5th Generation, 5G) system or new nothing Line (New Radio, NR) etc..

The embodiment of the present application for ease of understanding is described in detail shown in Fig. 1 for communication system first and is suitable for this Apply for the communication system of embodiment.Fig. 1 is the schematic diagram of the wireless communication system 100 suitable for the embodiment of the present application.Such as Fig. 1 institute Show, which may include at least one network equipment, for example, network equipment #1 111 shown in FIG. 1, net Network equipment #2 112, network equipment #3 113, the wireless communication system 100 can also include at least one terminal device, for example, Terminal device 121 shown in FIG. 1.

In the wireless communication system 100, in network equipment #1 111, network equipment #2 112 and network equipment #3 113 One or more can simultaneously be communicated with terminal device 121.For example, in a certain amount of time, network equipment #1 111, network are set Standby #2 112 is communicated with terminal device 121 simultaneously.

It should be understood that the network equipment in the wireless communication system can be any one equipment with radio transmission-receiving function Or may be disposed at the chip of the equipment, which includes but is not limited to: evolved node B (evolved Node B, eNB), nothing Line network controller (Radio Network Controller, RNC), node B (Node B, NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver Station, BTS), Home eNodeB (example Such as, Home evolved NodeB or Home Node B, HNB), Base Band Unit (BaseBand Unit, BBU), Wireless Fidelity Access point (Access Point, AP) in (Wireless Fidelity, WIFI) system, wireless relay nodes, wireless backhaul Node, transfer point (transmission point, TP) transmit and receive point (transmission and reception Point, TRP) etc., it can also be 5G, e.g., NR, the gNB in system, or, transfer point (TRP or TP), base station in 5G system One or a set of (including mutiple antennas panel) aerial panel, alternatively, can also be the network node for constituting gNB or transfer point, Such as Base Band Unit (BBU), or, distributed unit (distributed unit, DU) etc..

In some deployment, gNB may include centralized unit (centralized unit, CU) and DU.GNB can be with Including radio frequency unit (radio unit, RU).CU realizes the partial function of gNB, and DU realizes the partial function of gNB, for example, CU is real Existing wireless heterogeneous networks (radio resource control, RRC), Paket Data Convergence Protocol (packet data Convergence protocol, PDCP) layer function, DU realize wireless spread-spectrum technology (radio link control, RLC), the function of media access control (media access control, MAC) and physics (physical, PHY) layer.Due to The information of rrc layer eventually becomes the information of PHY layer, alternatively, from the information transformation of PHY layer, thus, in this framework Under, high-level signaling, such as rrc layer signaling or PHCP layers of signaling, it is also assumed that being to be sent by DU, alternatively, being sent by DU+RU 's.It is understood that the network equipment can be CU node or DU node or the equipment including CU node and DU node.This Outside, CU can be divided into access net RAN in the network equipment, the network equipment that CU can also be divided into core net CN, This is with no restrictions.

It should also be understood that the terminal device in the wireless communication system be referred to as user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, Terminal, wireless telecom equipment, user agent or user apparatus.Terminal device in embodiments herein can be mobile phone (mobile phone), tablet computer (Pad), the computer with radio transmission-receiving function, virtual reality (Virtual Reality, VR) terminal device, augmented reality (Augmented Reality, AR) terminal device, Industry Control (industrial Control the wireless terminal in), the wireless terminal in unmanned (self driving), tele-medicine (remote Medical the wireless terminal in wireless terminal, smart grid (smart grid), transportation safety (transportation in) Safety the wireless terminal in wireless terminal, smart city (smart city) in), in wisdom family (smart home) Wireless terminal etc..Embodiments herein to application scenarios without limitation.By aforementioned terminals equipment and settable in the application Terminal device is referred to as in the chip of aforementioned terminals equipment.

It should be understood that in Fig. 1 only for ease of understanding, it is schematically shown that network equipment #1 to network equipment #3 and terminal is set It is standby, but this should not constitute any restriction to the application, can also include net more or less in the wireless communication system Network equipment also may include greater number of terminal device, can be from the network equipment of different terminal equipment in communication identical The network equipment, be also possible to the different network equipments, can phase from the quantity of the network equipment of different terminal equipment in communication Together, it can also be different, the application does not limit this.

In CoMP transmission scene, the network equipment usually requires the CSI of reference terminal equipment feedback to determine reasonable biography Transmission scheme and scheduling strategy.Terminal device can be according to the reference signal resource indicated by the network equipment, for example, channel state information Reference signal (channel state information reference signal, CSI-RS) resource, carry out CSI measurement and Feedback.

Optionally, CSI described in the embodiment of the present application includes but is not limited at least one in following message: precoding Matrix indicates (precoding matrix indicator, PMI), order instruction (rank indication, RI) and channel quality Indicate (channel quality indicator, CQI), CSI-RS resource instruction (CSI-RS resource indicator, At least one of CRI) and in layer instruction (layer indication, LI), the embodiment of the present application is not construed as limiting this.

Assuming that 2 cooperation transmission of the network equipment 1 and the network equipment, terminal device are estimated according to the CSI-RS that the network equipment 1 is sent Channel matrix H 1 is counted, channel matrix H 2 is estimated according to the CSI-RS that the network equipment 2 is sent, the network equipment 1 is configured with code book W1, net Network equipment 2 is configured with code book W2.Wherein, W1=[v₁₁ v₁₂ … v_1n], W2=[v₂₁ v₂₂ … v_2m], v_jkIt indicates optional to prelist Code matrix, 1≤j≤n, 1≤k≤m.

Optionally, in W1 optional pre-coding matrix number n₁Such as it can be according to the codebook parameter information of W1 and the code of W1 This subset restricted information is determining, the number n of optional pre-coding matrix in W2₂Such as it can be according to the codebook parameter information and W2 of W2 Codebook subset restricted information determines.

In the prior art, which determines the 1st pre-coding matrix under the equivalent channel of H1 × W1 in W1, Such as v₁₁, pre-coding matrix v₁₁Keep the throughput of the network equipment 1 maximum；The terminal device is under the equivalent channel of H2 × W2 Determine the 2nd pre-coding matrix, such as v₂₁, pre-coding matrix v₂₁Keep the throughput of the network equipment 2 maximum.

However, can mutually be concerned between the network equipment 1 and 2 pre-coding matrixes of the network equipment 2 in CoMP transmission scene It disturbs, therefore, the system throughput summation of the network equipment 1 and the network equipment 2 is relatively low, i.e. the measuring accuracy of CSI is lower, thus It will affect data transmission performance.

In view of this, the application provides a kind of measurement method of channel state information, be conducive to improve the accurate of CSI measurement Degree, and then improve data transfer performance.

The measurement method of channel state information provided by the embodiments of the present application is described in detail below in conjunction with attached drawing.

It should be understood that the measurement method of channel state information provided by the present application is applicable to wireless communication system, for example, figure Wireless communication system 100 shown in 1.Terminal device in the embodiment of the present application can simultaneously with one or more network equipments Communication, for example, the network equipment in the embodiment of the present application can correspond to network equipment #1 111, network equipment #2112 in Fig. 1 One or more of with network equipment #3 113, the terminal device in the embodiment of the present application can correspond to the terminal in Fig. 1 Equipment 121.

It should also be understood that the CSI-RS in the embodiment of the present application is a kind of concrete form for the CSI reference signal measured, Any restriction is constituted without coping with the application.It is measured using other reference signals as CSI in fact, the application is not precluded, For example, demodulated reference signal (demodulation reference signal, DMRS), or defined in the future protocol Reference signal etc. with same or similar function.

Hereinafter, without loss of generality, by taking the interactive process between a terminal device and one or more network equipments as an example The embodiment of the present application is described in detail, which can be wirelessly connected to have in wireless communication system with the network equipment Any terminal device of relationship.It is understood that any one terminal device in the wireless communication system can be with CSI measurement is carried out based on identical technical solution and feedback, the application do not limit this.

Fig. 2 is the measurement method of the channel state information provided by the embodiments of the present application shown in the angle from equipment interaction 200 schematic flow chart.

S210, terminal device receive the first instruction information that the network equipment is sent, and the first instruction information is used to indicate M A code book, M are the integer greater than 1；

Correspondingly, which sends the first instruction information to the terminal device.

Optionally, which is used to indicate M code book, it can be understood as the first instruction information is used to indicate Multiple code books, for example, 2 code books or 3 code books or multiple code books

Wherein, there is communication connection, for example, the terminal device can be Fig. 1 between the terminal device and the network equipment Shown in terminal device 121, which can be to have communication connection with the terminal device 121 shown in Fig. 1 One or more network equipments, for example, one in network equipment #1 111, network equipment #2 112 and network equipment #3 113 Or it is multiple.

Optionally, M codebook configuration information can be carried on high-level signaling (such as wireless heterogeneous networks (radio Resource control, RRC) message) in, such as be carried in RRC information and report configuration (reporting setting) Field is e.g. carried on 1 and reports in configuration field perhaps multiple report in configuration field or the M codebook configuration information can To carry media intervention control (media access control, MAC) control element (control element, CE) signaling In or the codebook configuration information can also be carried in other signalings, the embodiment of the present application is not construed as limiting this.

For example, by taking 2 code books as an example, this report configuration field can in the following way (1) or mode (2) indicate this 2 A code book:

Mode (1)

Mode (2)

Optionally, it may include the code book type of at least one code book in the M code book in the first instruction information, such as may be used To include the code book type of each code book in the M code book.

It optionally, may include the codebook parameter of at least one code book in the M code book in the first instruction information.Such as may be used To include the codebook parameter of each code book in the M code book.

It optionally, may include the codebook subset limitation of at least one code book in the M code book in the first instruction information. It such as may include the codebook subset limitation of each code book in the M code book.

It optionally, may include the codebook parameter of each code book in the M code book in the first instruction information；Or it can be with The difference of the codebook parameter of codebook parameter including each code book in the M code book in addition to the first code book and first code book with And the codebook parameter of first code book.

For example, the first instruction information may include the N1=4 of the code book 1 and N1=of code book 2 by taking 2 code books as an example 8；It or may include the N1=4 of the code book 1 and Δ N1=8-4=4 of the code book 2.

Optionally, what the rule which can make an appointment according to the network equipment determined, this first yard Originally it is referred to as benchmark code book.

In one possible implementation, which can be the code book of first configuration, be also possible to second The code book of a configuration or the code book of the last one configuration；Or the benchmark code book can be qualified for codebook parameter Code book, the condition can be the first dimension port number maximum, be also possible to same codebook type or identical panel Number, etc. the embodiment of the present application is not construed as limiting this.

Optionally, which may include M bit map (bitmap), different in the M bitmap Bitmap indicates the CSR of different code books, and each bit can indicate that 1 in the corresponding code book of the bitmap prelists in bitmap Code vector/precoding vectors group, wherein 1 precoding vectors group may include one or more precoding vectors；Or this One instruction information includes 1 bitmap, and each bit in the bitmap can indicate each code book in the M code book simultaneously 1 precoding vectors/precoding vectors group.

It is alternatively possible to according to by meaning indicated by 1 bit in the bitmap of signal deployment code book, for example, CSRgroupEnable=TRUE indicates that 1 bit in the bitmap of the code book indicates 1 precoding vectors group, CSRgroupEnable=FALSE indicates that 1 bit in the bitmap of the code book indicates 1 precoding vectors.

Optionally, meaning indicated by 1 bit in the bitmap of code book can be according to the code book type of the code book, end Mouth number etc. determines.

For example, being meant that one prelists indicated by 1 bit (bit) in bitmap when code book type is Type I Code vector when code book type is Type II, is meant that a precoding vectors group indicated by 1 bit in bitmap.Or When person, port parameter configuration and over-sampling parameter configuration N1*N2*O1*O2≤16, contain indicated by 1 bit in bitmap When justice is a precoding vectors, port parameter configuration and over-sampling parameter configuration N1*N2*O1*O2≤16, in bitmap A precoding vectors group is meant that indicated by 1bit.

Optionally, the number for the precoding vectors for including in the number of precoding vectors group or 1 precoding vectors group can To predefine or be determined by signal deployment or the terminal device according to self-ability；For example, in predefined 1 group of precoding vectors Including 2 or 4 precoding vectors；Or it can be determined according to the signal deployment such as configuration of wave beam number, over-sampling parameter configuration The number for the precoding vectors for including in 1 precoding vectors group；Or the ability that can be fed back according to UE, such as whether supporting more Panel, if support multi-beam transmission, base station configuration；Or 1 precoding vectors is determined according to the predefined method such as table look-up The number of precoding vectors, the embodiment of the present application are not construed as limiting this in group.

Optionally, which, which also can indicate that, carries out CSI measurement based on the M code book.For example, terminal device Reporting based on the received includes extra 1 codebook configuration information in configuration, and multiple codebook configuration information based on configuration carry out CSI Measurement.

(1) show indicating mode: the first instruction information M codebook configuration information and second indication information, this Two instruction information, which are used to indicate, carries out CSI measurement based on the M code book.

For example, the second indication information is based on M code book progress CSI measurement by 1 bit indication, then the bit Value sets 1 instruction and is based on M code book progress CSI measurement, sets 0 instruction and is not based on M code book progress CSI measurement.Alternatively, second Indicate information carries out CSI measurement based on which code book in the M code book by least one bit indication, for example, for 3 A code book, second indication information can be bitmap, and the bit length of bitmap is determined according to the number of configuration code book, for example, Second indication information is that " 110 " indicate to carry out CSI measurement based on first and second code book.

In other words, in S210, in the case where showing instruction: the first instruction information includes the M codebook configuration Information and the second indication information；In the case where implicit instruction: the first instruction information is exactly the M codebook configuration information.

S220, the terminal device carry out CSI measurement based on the M code book, obtain L according to the first instruction information At least one CSI in CSI, the L CSI is obtained based on the M code book, and L is the integer greater than 0.

Specifically, the terminal device can determine the M code book, and be based on the M code based on the first instruction information This, carries out CSI measurement.

It should be understood that a CSI described in the embodiment of the present application can be understood as at least one of following corresponding relationship: with one It is a channel, a code book, one or a set of for the resource of channel measurement, a tie point, a base station, a measuring assembly Corresponding CSI such as (measurement setting).

Optionally, CSI described in the embodiment of the present application includes but is not limited at least one of following message: CRI, At least one of in LI, RI, PMI and CQI, the embodiment of the present application is not construed as limiting this.

That is, RI, PMI etc. can be understood as different types of parameter in a CSI.

Specifically, the terminal device can be based on the M code book, N number of resource and the M code book and N number of resource Between corresponding relationship carry out the CSI measurement, which includes channel state information reference signals CSI-RS, CSI-RS resource collection At least one of in conjunction, CSI-RS resource group or CSI-RS port set, N is the integer greater than 1

Optionally, N can be greater than or equal to M.

For example, resource information and codebook information are configured, for example, resource in resource setting Configurating channel measurement resource 1 and codebook information 1, channel measurement resource 2 and codebook information 2 in setting, indicate channel measurement money Source 1 and codebook information 1 be it is corresponding, channel measurement resource 2 and codebook information 2 are corresponding.

Wherein, codebook information can be the ID of reporting setting, alternatively, being reporting setting ID And code book index, alternatively, being code book ID or measurement setting ID, alternatively, being the configuration information of code book (including code book type, codebook parameter information etc.) etc..

For example, the network equipment and the terminal device can make a reservation for successively obtain the M code book according to configuration sequence in advance Corresponding relationship between N number of resource.Optionally, it is surveyed for the same channel for the resource of channel measurement and for interfering The resource of amount can correspond to the same code book.

Optionally, each code book in the M code book is corresponding at least one resource in N number of resource, this at least one A resource includes the resource for channel measurement.That is, each code book in the M code book is at least used for channel with one The resource of measurement is corresponding, i.e., the M resources for being used for channel measurement, the M code book and this M use are included at least in N number of resource It is corresponding in the resource of channel measurement.For example, the M code book can be corresponded with the M resources for channel measurement.

For example, UE receives 2 CSI-RS resource for being used for channel measurement, UE receives 2 codebook configuration information.UE is according to One is used for the CSI-RS resource and 2 codebook configuration information of channel measurement, and precoding vectors are determined in first code book, into And obtain first CSI.UE is used for the CSI-RS resource and 2 codebook configuration information of channel measurement according to second, second Precoding vectors are determined in a code book, and then obtain second CSI.Wherein, first code book is to survey with first for channel The CSI-RS resource of amount is corresponding, and second code book and second CSI-RS resource for channel measurement are corresponding.

For example, UE receives 2 resources for being used for channel measurement, such as CSI-RS resource and 2 money for interference measurement Source, such as CSI-RS resource, when UE receives 2 codebook configuration instruction information, UE is used for the CSI-RS of channel measurement according to first Resource and first CSI-RS resource and 2 codebook configurations instruction information for interference measurement, obtain first CSI；Root Match for the CSI-RS resource of channel measurement and second for the CSI-RS resource of interference measurement and 2 code books according to second Instruction information is set, second CSI is obtained.

Wherein, first code book and first CSI-RS resource for channel measurement are corresponding.Second code book and second A CSI-RS for channel measurement is corresponding.

Wherein, first code book and first CSI-RS resource for channel measurement are corresponding, second code book and first A CSI-RS for interference measurement is corresponding；Or first code book and second are used for the CSI-RS resource pair of channel measurement It answers, second code book and second CSI-RS for interference measurement are corresponding.

For example, UE receives 2 resources, 2 code books.1 in 2 resources is used to measure channel, and 1 dry for measuring It disturbs.First code book and resource for measuring channel are corresponding, alternatively, first code book and first resource are corresponding.Second Code book and resource for interference measurement are corresponding, and second code book and second resource are corresponding.

In other words, which is based on the M code book and carries out CSI measurement, it is understood that is the terminal device base Carry out channel measurement in the resource of M for channel measurement, it is understood that resource for the terminal device based on M configuration into Row CSI measurement, the resource of M configuration includes at least one of the resource for channel measurement, the resource for interference measurement.

For example, code book 1 corresponds to resource group 1, it include 1 He of CSI-RS resource group for channel measurement in the resource group 1 CSI-RS resource group 1 for interference measurement；Code book 2 corresponds to CSI-RS resource group 2, includes using in the CSI-RS resource group 2 CSI-RS resource group 2 in channel measurement and the CSI-RS resource group 2 for interference measurement.

In another example code book 1 corresponds to the CSI-RS resource group 1 in the CSI-RS resource set for channel measurement, code book 2 Corresponding to the CSI-RS resource group 2 in the CSI-RS resource set for channel measurement.

In another example code book 1 corresponds to the CSI-RS port set 1 in the CSI-RS resource for channel measurement, code book 2 is corresponding CSI-RS port set 2 in the CSI-RS resource for channel measurement.

As an example it is assumed that 2 cooperation transmission of the network equipment 1 and the network equipment, terminal device are sent according to the network equipment 1 CSI-RS estimates channel matrix H 1, estimates channel matrix H 2 according to the CSI-RS that the network equipment 2 is sent, the network equipment 1 is configured with Code book W1, the network equipment 2 are configured with code book W2.Wherein, W1=[v₁₁ v₁₂ … v_1n], W2=[v₂₁ v₂₂ … v_2m], vjk table Show optional pre-coding matrix, 1≤j≤n, 1≤k≤m.

The diagonal block matrix that W1 and W2 is formed

Then the terminal device obtains equivalent channel matrix H3 according to W1, W2, H1 and the H2 can be obtained by following formula (1) It arrives:

Optionally, this method 200 further include: the terminal device sends K CSI, K in the L CSI to the network equipment For the integer greater than 0；Correspondingly, which receives the K CSI of terminal device transmission.

That is, the terminal device, which some or all of can will measure CSI, is reported to the network equipment, the application is real It applies example and this is not construed as limiting.

Optionally, the terminal device can receive network equipment transmission at least one report and each report and match in configuration The instruction information set.It may also be said that the terminal device, which can receive at least one that the network equipment is sent, reports configuration information, This at least one report configuration information to be used to indicate at least one to report configuration.

Optionally, this at least one report configuration information that can be carried on high-level signaling (such as wireless heterogeneous networks (radio Resource control, RRC) message) in, such as can be carried on and report configuration (reporting setting) field, or Person should report configuration information that can be carried in other signalings, and the embodiment of the present application is not construed as limiting this.

Optionally, which is based on a CSI and reports configuration, sends CSI feedback information to the network equipment, should CSI feedback information is for feeding back multiple CSI；Or the terminal device can report configuration based on multiple, respectively to the network Equipment sends multiple feedback informations, and multiple feedback information is corresponding with multiple CSI, for example, multiple feedback information is more with this A CSI can be corresponded, i.e., each CSI reports configuration to report according to corresponding with the CSI.

In another example UE receives 2 reporting setting, wherein including 1 in each reporting setting A codebook configuration information.UE is indicated according to the feature or signaling of configuration information, based on according to 2 code books progress CSI measurements. The feature of configuration information, which can be the received triggering information of UE and trigger at least two, reports configuration.

Signaling instruction can be the signaling for indicating that multiple code books measure, as MultiCodebookCSI=TRUE believes It enables, which can configure in reporting configuration, can also be in resource distribution or in measuring configuration.

Optionally, in the embodiment of the present application, the bit length of the CSI feedback information can be based on one or more CSI At least one in the value of the bit length of middle CSI, the selectable value range of the CSI and difference CSI is determining, the embodiment of the present application pair This is not construed as limiting.

In one possible implementation, which is based on a CSI and reports configuration, feeds back to the network equipment When multiple CSI, which can feed back for the joint of multiple CSI.The bit length of the CSI feedback information according to The bit length of multiple CSI determines.

Terminal device is explained below how to pass through one and report configuration, reporting K RI, K to the network equipment is greater than 1 Integer.

Optionally, in the above-described embodiments, the first instruction information indicates the CSR of each code book in the M code book, below will The CSR how the first instruction information indicates each code book in the M code book is discussed in detail.

In one possible implementation, which may include M bit diagram (bitmap), each Bitmap is used to indicate the CSR of a code book, wherein the bit for including in the bitmap of each code book is pre- with each code book Encoder matrix/pre-coding matrix set and there is corresponding relationship, the element 0 in bitmap indicates corresponding pre-coding matrix/pre- Encoder matrix set is not take up PMI feedback bits, and element 1 indicates that corresponding pre-coding matrix/pre-coding matrix set occupies PMI Feedback bits.

For example, the code book W1=[v of code book 1₁₁,v₁₂,…v₁₅], the bitmap of the code book 1 can be 01101, indicate the code This 1 CSR is v₁₂,v₁₃,v₁₅。

Thus, it is supposed that the bit length of a bitmap is P bit, then the codebook configuration information at least needs PM The CSR of each code book in the bit indication M code book, P are the integer greater than 1.

It optionally, may include M bitmap in the first instruction information, different bitmap corresponds to different code books CSR；Or this first instruction information in may include 1 bitmap, which includes the bit of M part, the M part The bit of each part corresponds to the CSR of different code books in bit, and the embodiment of the present application is not construed as limiting this.

For example, code book 1 is W1=[v₁₁,v₁₂,…v₁₅], code book 2 is W2=[v₂₁,v₂₂,…v₂₅], then first instruction is believed Breath may include the bitmap1=01101 of the code book 1 and bitmap2=11001 of code book 2, alternatively, the first instruction information It may include bitmap=0110111001.

Optionally, the code book type of the M code book can be identical or different, and the embodiment of the present application is not construed as limiting this.

When including 1 bitmap in the first instruction information, which includes the bit of M part, different piece When the CSR of bit indication difference code book, the bit of each section can have at least one of following relationship:

Assuming that the M=2, then the bitmap includes the bit of 2 parts, and the bit of first part is used to indicate the first code book CSR, the bit of second part is used to indicate the CSR of the second code book.

(1) if at least one odd bits is 1 in the bit of first part, at least one in the bit of second part is odd Numerical digit is 1；If at least one even bit is 1 in the bit of first part, at least one even number in the bit of second part Position is 1.

(2) 1 number is equal in 1 number and the bit of second part in the bit of first part；The ratio of first part 0 number is equal in 0 number and the bit of second part in spy.

(3) if p-th of value is 1 in the bit of first part, pth+q value is 1 in the bit of the second part, Wherein, p and P is the integer greater than 0.

Optionally, the value of q can be predetermined, it is perhaps being configured by the network equipment by high-level signaling or It is that the terminal device is fed back, the embodiment of the present application is not construed as limiting this.

(4) if p-th of value is 1 in the bit of first part, pth+q values are included in the bit of the second part At least r value be 1.

Optionally, the value of r can be that predetermined (such as the value of r can be N₁N₂), or passed through by the network equipment High-level signaling configuration or terminal device feedback, the embodiment of the present application is not construed as limiting this.

Optionally, the value of q can be predetermined, it is perhaps being configured by the network equipment by high-level signaling or It is that the terminal device is fed back.

Optionally, it is only introduced by taking M=2 as an example in above-described embodiment, the value of M is greater than method and M=2 class when 2 Seemingly, the embodiment of the present application is not construed as limiting this.

However, being continuously increased with the network equipment number to cooperate in the communication system of cooperation transmission, the codebook configuration The bit that information needs is also more and more, and so, the data volume of the codebook configuration information will constantly increase, and leads to the The transmission rate of one instruction information reduces.

Optionally, the embodiment of the present application also provides following several methods solve how to reduce the data of the first instruction information How amount, such as reduce the number of bits of the first instruction information, that is, passes through each code book in the Q bit indication M code book CSR, wherein Q < P × M, Q are the integer greater than 1.

In one possible implementation, which may include Q bit, which refers to simultaneously Show the CSR of each code book in the M code book.

For example, the pre-coding matrix in code book includes such as flowering structure:

Wherein, the value range of m be 0,1 ... N₂×O₂The value range of -1, l are 0,1 ... N₁×O₁-1.First finger Show to may include N in information₁×O₁×N₂×O₂A bit, wherein N₂×O₂× l+m bit, which corresponds to, all in code book includes v_{L, m}Pre-coding matrix set.Wherein N₁Indicate the antenna port number of the first dimension, N₂Indicate the antenna port of the second dimension Number, O₁Indicate the oversample factor of the first dimension, O₂Indicate the oversample factor of the second dimension.

(1) N of different code books₁Value and N₂When being worth identical, N may include in the first instruction information₁×O₁×N₂×O₂A ratio Spy (i.e. Q=N₁×O₁×N₂×O₂), wherein N₂×O₂× l+m bit, which can be corresponded to simultaneously in code book 1 and code book 2, to be owned Include v_{L, m}Pre-coding matrix set.

Optionally, the N of different code books₁Value and N₂Value can be defined previously as it is identical.

(2) N of different code books₁Value and N₂When being worth different, by the N in code book₁×O₁×N₂×O₂A pre-coding matrix is divided into X A pre-coding matrix set, each pre-coding matrix set include N₁×O₂×N₂×O₂/ X wave beam.Wherein, first instruction The bit number of information can be determined according to the information of pre-coding matrix set.

Optionally, the value of the corresponding X of different code books can identical (such as X be O₁And O₂Function, X=O₁×O₂), it can be with Different (such as X is N₁And N₂Function, X=N₁×N₂), the embodiment of the present application is not construed as limiting this.

When the X value of different code books is identical, which includes at least X bit (i.e. Q=X), the X bit In each bit be used for while indicating a pre-coding matrix set of each code book in M code book, in the X bit not It is different with the pre-coding matrix set of bit indication.

For example, code book 1 is W1=[v₁₁,v₁₂,…,v₁₈], wherein every two pre-coding matrix is a set, i.e. code book 1 set 1 includes v₁₁And v₁₂, set 2 include v₁₃And v₁₄, set 3 include v₁₅And v₁₆, set 4 include v₁₇And v₁₈, code book 2 is W2=[v₂₁,v₂₂,…,v₂₈] wherein, every two pre-coding matrix is a set, i.e. the set 1 of code book 2 includes v₂₁And v₂₂、 Set 2 includes v₂₃And v₂₄, set 3 include v₂₅And v₂₆, set 4 include v₂₇And v₂₈, this first instruction information in may include 4 Bit, by 4 bits while the CSR of the code book 1 and CSR of code book 2, if then 4 bits are 1101, then it represents that should The CSR of the code book 1 and CSR of code book 2 is set 1, set 2 and set 4.

Optionally, it may include the precoding vectors of adjacent angular in pre-coding matrix set or orthogonal prelist Code vector.

Optionally, the spacing for the precoding vectors for including in the same pre-coding matrix set is adjustable.

When the X value difference of different code books, such as X=N₁×N₂, pre- in the corresponding pre-coding matrix set of each code book Encoder matrix number is O₁×O₂, then the first instruction information includes at least O₁O₂A bit (i.e. Q=O₁×O₂), wherein the O₁ ×O₂Each bit in a bit is used for while indicating a pre-coding matrix set (example of each code book in the M code book Such as can be all pre-coding matrix set) in a pre-coding matrix.Different bit indications in the X bit are different pre- Different pre-coding matrixes in encoder matrix set.

(3) pre-coding matrix in code book 1 is divided into X set, includes X bit in the first instruction information, the X is a Bit is corresponded with this X set, further includes the precoding that Y bit is used to indicate in code book 2 in the first instruction information Relationship between set of matrices and the pre-coding matrix set of the first code book.

For example, code book 1 is W1=[v₁₁,v₁₂,…,v₁₈], wherein every two pre-coding matrix is a set, i.e. code book 1 set 1 includes v₁₁And v₁₂, set 2 include v₁₃And v₁₄, set 3 include v₁₅And v₁₆, set 4 include v₁₇And v₁₈, this first It indicates that in information may include 4 bits, is gathered by 4 of 4 bit indication code books 1, such as 1101 indicate the code book 1 CSR be set 1, set 2 and set 4；Code book 2 is W2=[v₂₁,v₂₂,…,v₂₈] wherein, every two pre-coding matrix is one A set, the i.e. set 1 of code book 2 include v₂₁And v₂₂, set 2 include v₂₃And v₂₄, set 3 include v₂₅And v₂₆, set 4 include v₂₇ And v₂₈, while can also include other 4 bits in the first instruction information, pass through 4 bit indication code books 2 and code book 1 Relationship, such as 1 indicate code book 2 it is identical with code book 1,0 indicate code book 2 it is different from code book 1, if then 4 bits be 0010, Indicate the CSR of the code book 2 for set 3.

(4) the corresponding precoding square of type II code book is used to indicate comprising at least one bit in the first instruction information Battle array set, is in addition used to indicate the corresponding pre-coding matrix set of type I code book there are also at least one bit.

Optionally, in CoMP scene, multiple network equipments can send aperiodic CSI to the terminal device simultaneously and ask It asks, when multiple network equipments send aperiodic CSI request to the terminal device simultaneously, may result in running time-frequency resource conflict, At this moment the terminal device can carry out at least one of as follows CSI feedback:

Mode (1) is right if an aperiodic type I CSI and another aperiodic type I CSI are clashed It smaller should report the aperiodic type I CSI priority with higher of configuration ID (ReportConfigID) and by the terminal Equipment reports the network equipment, other have lower priority simultaneously with the larger aperiodic type I CSI for reporting configuration ID And the network equipment will not be reported to by the terminal device.

Mode (2) if aperiodic type II CSI and another aperiodic type II CSI are clashed, Correspond to the smaller aperiodic type II CSI priority with higher for reporting configuration ID (ReportConfigID) and by the end End equipment reports the network equipment, other have lower preferential with the larger aperiodic type II CSI for reporting configuration ID Grade and the network equipment will not be reported by the terminal device.

Mode (3) if physical uplink control channel (physical uplink control channel, PUCCH aperiodic type I CSI and another Physical Uplink Shared Channel (physical uplink shared) Channel, PUSCH) aperiodic type I CSI clash, then the aperiodic type I CSI of PUSCH is with higher Priority is simultaneously reported to the network equipment by the terminal device, and the aperiodic type I CSI of PUCCH has lower priority And the network equipment will not be reported to by the terminal device.

Mode (4) if the aperiodic type II CSI and another PUSCH of a PUCCH aperiodic type II CSI is clashed, then the aperiodic type II CSI priority with higher of PUSCH and is reported to this by the terminal device The network equipment, the aperiodic type II CSI of PUCCH have lower priority and will not be reported to this by the terminal device The network equipment.

Mode (5) is if aperiodic type I CSI and aperiodic type II CSI are clashed, aperiodic type I CSI has higher priority and is reported to the network equipment by the terminal device, and aperiodic type II CSI has lower excellent First grade and the network equipment will not be reported to by the terminal device, wherein the second part (part in aperiodic type II 2) priority than first part (part 1) is lower.

Describe the measurement method of channel state information provided by the embodiments of the present application in detail above in conjunction with Fig. 1 to Fig. 2, under The measuring device of channel state information provided by the embodiments of the present application will be introduced in conjunction with Fig. 3 to Fig. 6 in face.

Fig. 3 shows the schematic block diagram of the measuring device 300 of channel state information provided by the embodiments of the present application.The dress Setting 300 includes:

Receiving unit 310, for receiving the first instruction information of network equipment transmission, the first instruction information is for referring to Show that M code book, M are the integer greater than 1；

Processing unit 320, for being based on the M according to the received first instruction information of the receiving unit 310 Code book carries out CSI measurement, obtains L CSI, at least one CSI in the L CSI is obtained based on the M code book, L For the integer greater than 0.

Optionally, the first instruction information is also used to indicate to carry out channel state information CSI survey based on the M code book Amount.

Optionally, the processing unit is specifically used for: based on the M code book, N number of resource and the M code book and Corresponding relationship between N number of resource carries out the CSI measurement, and the resource includes channel state information reference signals CSI- At least one of in RS resource, CSI-RS resource set, CSI-RS resource group or CSI-RS port set, N is the integer greater than 1.

Optionally, each code book in the M code book is corresponding at least one resource in N number of resource, described At least one resource includes first resource, and the first resource is used for channel measurement.

Optionally, the processing unit is specifically used for being based on the M code book, obtains diagonal block matrix；Based on described right Hornblock matrix carries out the CSI measurement.

Optionally, described device further include: transmission unit, the transmission unit are used for described in network equipment transmission K CSI in L CSI, K are the integer greater than 0, and K is less than or equal to L.

Optionally, the transmission unit is specifically used for: reporting configuration based on a CSI, the Xiang Suoshu network equipment sends CSI Feedback information, the CSI feedback information is for feeding back the K CSI.

It optionally, include the K CSI in the CSI feedback information；Or when K is greater than 1, in the CSI feedback information Difference and the first CSI including each CSI and the first CSI in the K CSI in addition to the first CSI, described the One CSI is determined according to preset rules.

It should be understood that device 300 here is embodied in the form of functional unit.Here term " unit " can refer to using special There are integrated circuit (application specific integrated circuit, ASIC), electronic circuit, for executing one The processor (such as shared processor, proprietary processor or group processor etc.) and storage of a or multiple softwares or firmware program Device merges logic circuit and/or other appropriate components for supporting described function.In an optional example, this field skill Art personnel are appreciated that device 300 can be specially the terminal device in 200 embodiment of the above method, and device 600 can be used for Each process corresponding with terminal device and/or step in 200 embodiment of the above method are executed, to avoid repeating, herein no longer It repeats.

Fig. 4 shows the schematic block diagram of the measuring device 400 of channel state information provided by the embodiments of the present application.The dress Setting 400 includes:

Transmission unit 410, for sending the first instruction information to terminal device, the first instruction information is used to indicate M A code book, M are the integer greater than 1；

Receiving unit 420, the K CSI, at least one of described K CSI sent for receiving the terminal device CSI is that the M code book sent based on the transmission unit 410 is obtained, and K is the integer greater than 0.

Optionally, the transmission unit is also used to send resource allocation information, the resource distribution to the terminal device Information is used to indicate N number of resource, and the resource includes channel state information reference signals CSI-RS resource, CSI-RS resource collection At least one of in conjunction, CSI-RS resource group or CSI-RS port set, N is the integer greater than 1.

Optionally, the transmission unit, which is also used to send to the terminal device, reports configuration information, described to report configuration Information is used to indicate a CSI and reports configuration；The receiving unit is specifically used for receiving the terminal device based on the CSI The CSI feedback information that report configuration is sent, the CSI feedback information is for feeding back the K CSI.

It optionally, include one or more of CSI in the CSI feedback information；Or when K is greater than 1, the CSI is anti- It include the difference and described first of each CSI and the first CSI in the K CSI in addition to the first CSI in feedforward information CSI, the first CSI is determined according to preset rules.

It should be understood that device 400 here is embodied in the form of functional unit.Here term " unit " can refer to ASIC, Electronic circuit, for executing one or more softwares or firmware program processor (such as shared processor, proprietary processor or Group processor etc.) and memory, the appropriate component for merging logic circuit and/or other support described functions.It can at one It selects in example, it will be understood by those skilled in the art that device 400 can be specially that network in 200 embodiment of the above method is set Standby, device 400 can be used for executing each process corresponding with the network equipment and/or step in 200 embodiment of the above method, be It avoids repeating, details are not described herein.

Fig. 5 shows the measuring device 500 of channel state information provided by the embodiments of the present application, which can be Terminal device described in Fig. 1 and Fig. 2, the device 500 can use hardware structure as shown in Figure 5.The apparatus may include Processor 510, transceiver 520 and memory 530, the processor 510, transceiver 520 and memory 530 are logical by internal connection Road communicates with each other.The correlation function that processing unit 320 in Fig. 3 is realized can realize by processor 510, receiving unit 310 correlation functions realized can control transceiver 520 by processor 510 to realize.

The processor 510 may include be one or more processors, for example including one or more central processing unit (central processing unit, CPU), in the case where processor is a CPU, which can be monokaryon CPU, It can be multi-core CPU.

The transceiver 520 is for sending and receiving data and/or information, and reception data and/or information.The transceiver It may include transmitter and receiver, transmitter is for sending data and/or signal, and receiver is for receiving data and/or letter Number.

The memory 530 include but is not limited to be random access memory (random access memory, RAM), only Read memory (read-only memory, ROM), erasable and programable memory (erasable programmable read Only memory, EPROM), CD-ROM (compact disc read-only memory, CD-ROM), the memory 530 For storing dependent instruction and data.

Memory 530 is used for the program code and data of storage device, for individual device or can be integrated in processor In 510.

Specifically, the processor 510 carries out information/data transmission for controlling transceiver and the network equipment.Specifically may be used Referring to the description in embodiment of the method, details are not described herein.

It is designed it is understood that Fig. 5 illustrate only simplifying for device.In practical applications, device can also be distinguished Comprising necessary other elements, including but not limited to any number of transceiver, processor, controller, memory etc., and own The device of the application may be implemented all within the scope of protection of this application.

In a kind of possible design, device 500 may alternatively be chip apparatus, such as can be that can be used in device Communication chip, for realizing the correlation function of processor 510 in device.The chip apparatus can showing for realization correlation function Field programmable gate array, special integrated chip, System on Chip/SoC, central processing unit, network processing unit, digital signal processing circuit, Microcontroller can also use programmable controller or other integrated chips.It optionally may include one or more in the chip A memory, for storing program code, when the code is performed, so that processor realizes corresponding function.

Fig. 6 shows the measuring device 600 of channel state information provided by the embodiments of the present application, which can be The network equipment described in Fig. 1 and Fig. 2, the device 600 can use hardware structure as shown in FIG. 6.The apparatus may include Processor 610, transceiver 620 and memory 630, the processor 610, transceiver 620 and memory 630 are logical by internal connection Road communicates with each other.The correlation function that transmission unit 410 and receiving unit 420 in Fig. 4 are realized can be controlled by processor 610 Transceiver 620 is realized.

The processor 610 may include be one or more processors, for example including one or more CPU, in processor In the case where being a CPU, which can be monokaryon CPU, be also possible to multi-core CPU.

The transceiver 620 is for sending and receiving data and/or information, and reception data and/or information.The transceiver It may include transmitter and receiver, transmitter is for sending data and/or information, and receiver is for receiving data and/or letter Breath.

The memory 630 include but is not limited to be RAM, ROM, EPROM, CD-ROM, the memory 630 is for storing correlation Instruction and data.

Memory 630 is used for the program code and data of storage device, for individual device or can be integrated in processor In 610.

Specifically, the processor 610 carries out information transmission for controlling transceiver and terminal device.For details, reference can be made to sides Description in method embodiment, details are not described herein.

It is designed it is understood that Fig. 6 illustrate only simplifying for device.In practical applications, device can also be distinguished Comprising necessary other elements, including but not limited to any number of transceiver, processor, controller, memory etc., and own The device of the application may be implemented all within the scope of protection of this application.

In a kind of possible design, device 600 may alternatively be chip apparatus, such as can be that can be used in device Communication chip, for realizing the correlation function of processor 610 in device.The chip apparatus can showing for realization correlation function Field programmable gate array, special integrated chip, System on Chip/SoC, central processing unit, network processing unit, digital signal processing circuit, Microcontroller can also use programmable controller or other integrated chips.It optionally may include one or more in the chip A memory, for storing program code, when the code is performed, so that processor realizes corresponding function.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program code Medium.

The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims

1. a kind of measurement method of channel state information CSI characterized by comprising

Terminal device receives the first instruction information that the network equipment is sent, and the first instruction information is used to indicate M code book, M For the integer greater than 1；

The terminal device carries out CSI measurement based on the M code book, obtains L CSI, institute according to the first instruction information Stating at least one CSI in L CSI is obtained based on the M code book, and L is the integer greater than 0.

2. the method according to claim 1, wherein the first instruction information is also used to indicate based on the M A code book carries out channel state information CSI measurement.

3. method according to claim 1 or 2, which is characterized in that the terminal device indicates information according to described first, CSI measurement is carried out based on the M code book, comprising:

The terminal device is based on corresponding between the M code book, N number of resource and the M code book and N number of resource Relationship carries out the CSI measurement, and the resource includes channel state information reference signals CSI-RS resource, CSI-RS resource collection At least one of in conjunction, CSI-RS resource group or CSI-RS port set, N is the integer greater than 1.

4. according to the method described in claim 3, it is characterized in that, each code book in the M code book and N number of resource In at least one resource it is corresponding, at least one described resource includes first resource, and the first resource is used for channel measurement.

5. method according to claim 1 to 4, which is characterized in that the terminal device is according to described first It indicates information, CSI measurement is carried out based on the M code book, comprising:

The terminal device is based on the M code book, obtains diagonal block matrix；

The terminal device is based on the diagonal block matrix, carries out the CSI measurement.

6. the method according to any one of claims 1 to 5, which is characterized in that the method also includes:

The terminal device sends K CSI in the L CSI to the network equipment, and K is the integer greater than 0, and K is less than Or it is equal to L.

7. according to the method described in claim 6, it is characterized in that, the terminal device sends the L to the network equipment K CSI in a CSI, comprising:

The terminal device is based on a CSI and reports configuration, and the Xiang Suoshu network equipment sends CSI feedback information, the CSI feedback Information is for feeding back the K CSI.

8. the method according to the description of claim 7 is characterized in that

It include the K CSI in the CSI feedback information；Or

It include each CSI in the K CSI in addition to the first CSI when K is greater than 1, in the CSI feedback information and described the The difference of one CSI and the first CSI, the first CSI is determined according to preset rules.

9. a kind of measurement method of channel state information CSI characterized by comprising

The network equipment sends the first instruction information to terminal device, and the first instruction information is used to indicate M code book, and M is big In 1 integer；

The network equipment receives the K CSI that the terminal device is sent, at least one CSI in the K CSI is to be based on What the M code book obtained, K is the integer greater than 0.

10. according to the method described in claim 9, it is characterized in that, the method also includes:

The network equipment sends resource allocation information to the terminal device, and the resource allocation information is used to indicate N number of money Source, the resource include channel state information reference signals CSI-RS resource, CSI-RS resource set, CSI-RS resource group or At least one of in CSI-RS port set, N is the integer greater than 1.

11. according to the method described in claim 10, it is characterized in that, each code book in the M code book and N number of money At least one resource in source is corresponding, at least one described resource includes first resource, and the first resource is used for channel measurement.

12. the method according to any one of claim 9 to 11, which is characterized in that the method also includes:

The network equipment reports configuration information to terminal device transmission, described that configuration information is reported to be used to indicate one CSI reports configuration；

The network equipment receives the K CSI that the terminal device is sent, comprising:

13. according to the method for claim 12, which is characterized in that

It include one or more of CSI in the CSI feedback information；Or

14. a kind of measuring device of channel state information CSI characterized by comprising

Receiving unit, for receiving the first instruction information of network equipment transmission, the first instruction information is used to indicate M code This, M is the integer greater than 1；

Processing unit, for being carried out based on the M code book according to the received first instruction information of the receiving unit CSI measurement, obtains L CSI, at least one CSI in the L CSI is obtained based on the M code book, and L is greater than 0 Integer.

15. device according to claim 14, which is characterized in that the first instruction information is also used to indicate based on described M code book carries out channel state information CSI measurement.

16. device according to claim 14 or 15, which is characterized in that the processing unit is specifically used for:

Based on described in the corresponding relationship progress between the M code book, N number of resource and the M code book and N number of resource CSI measurement, the resource includes channel state information reference signals CSI-RS resource, CSI-RS resource set, CSI-RS resource At least one of in group or CSI-RS port set, N is the integer greater than 1.

17. device according to claim 16, which is characterized in that each code book and N number of money in the M code book At least one resource in source is corresponding, at least one described resource includes first resource, and the first resource is used for channel measurement.

18. device described in any one of 4 to 17 according to claim 1, which is characterized in that the processing unit is specifically used for:

Based on the M code book, diagonal block matrix is obtained；

Based on the diagonal block matrix, the CSI measurement is carried out.

19. device described in any one of 4 to 18 according to claim 1, which is characterized in that described device further include: send single Member, the transmission unit are used to send K CSI in the L CSI to the network equipment, and K is the integer greater than 0, and K Less than or equal to L.

20. device according to claim 19, which is characterized in that the transmission unit is specifically used for:

Configuration is reported based on a CSI, the Xiang Suoshu network equipment sends CSI feedback information, and the CSI feedback information is for feeding back The K CSI.

21. device according to claim 20, which is characterized in that

It include the K CSI in the CSI feedback information；Or

22. a kind of measuring device of channel state information CSI characterized by comprising

Transmission unit, for sending the first instruction information to terminal device, the first instruction information is used to indicate M code book, M For the integer greater than 1；

Receiving unit, for receiving K CSI of the terminal device transmission, at least one CSI in the K CSI is to be based on What the M code book that the transmission unit is sent obtained, K is the integer greater than 0.

23. device according to claim 22, which is characterized in that the transmission unit is also used to:

Resource allocation information is sent to the terminal device, the resource allocation information is used to indicate N number of resource, the resource packet It includes in channel state information reference signals CSI-RS resource, CSI-RS resource set, CSI-RS resource group or CSI-RS port set At least one of, N is the integer greater than 1.

24. device according to claim 23, which is characterized in that each code book and N number of money in the M code book At least one resource in source is corresponding, at least one described resource includes first resource, and the first resource is used for channel measurement.

25. the device according to any one of claim 22 to 24, which is characterized in that the transmission unit is also used to:

Configuration information is reported to terminal device transmission, it is described to report configuration information to be used to indicate a CSI to report configuration；

The receiving unit is specifically used for receiving the CSI feedback information that the terminal device reports configuration to send based on the CSI, The CSI feedback information is for feeding back the K CSI.

26. device according to claim 25, which is characterized in that

It include one or more of CSI in the CSI feedback information；Or

27. a kind of measuring device of channel state information CSI, described device include memory, processor, communication interface and storage On the memory and the instruction that can run on the processor, wherein the memory, the processor and described It is communicated with each other between communication interface by internal connecting path, which is characterized in that the processor executes described instruction and makes institute Stating device realizes the claims 1 to the method described in any one of claim 8.

28. a kind of measuring device of channel state information CSI, described device include memory, processor, communication interface and storage On the memory and the instruction that can run on the processor, wherein the memory, the processor and described It is communicated with each other between communication interface by internal connecting path, which is characterized in that the processor executes described instruction and makes institute Stating device realizes the claims 9 to the method described in any one of claim 13.

29. a kind of computer-readable medium, for storing computer program, which is characterized in that the computer program includes using The instruction of method described in any one of realization the claims 1 to claim 8.

30. a kind of computer-readable medium, for storing computer program, which is characterized in that the computer program includes using The instruction of method described in any one of realization the claims 9 to claim 13.

31. a kind of computer program product, instruction is included in the computer program product, which is characterized in that work as described instruction When running on computers, so that computer realizes the claims 1 to the method described in any one of claim 8.

32. a kind of computer program product, instruction is included in the computer program product, which is characterized in that work as described instruction When running on computers, so that computer realizes the claims 9 to the method described in any one of claim 13.

33. a kind of chip apparatus, comprising: input interface, output interface, at least one processor, memory, the input connect It is communicated with each other between mouth, the output interface, the processor and the memory by internal connecting path, the processing Device is used to execute the code in the memory, and when the processor executes the code, the chip apparatus is realized above-mentioned Claim 1 is to the method described in any one of claim 8.

34. a kind of chip apparatus, comprising: input interface, output interface, at least one processor, memory, the input connect It is communicated with each other between mouth, the output interface, the processor and the memory by internal connecting path, the processing Device is used to execute the code in the memory, and when the processor executes the code, the chip apparatus is realized above-mentioned Claim 9 is to the method described in any one of claim 13.