CN109690962A

CN109690962A - Method, terminal device and the network equipment of data precoding

Info

Publication number: CN109690962A
Application number: CN201780050961.5A
Authority: CN
Inventors: 陈文洪; 史志华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2019-04-26
Also published as: WO2019127143A1

Abstract

This application discloses a kind of method of data precoding, terminal device and the network equipments, this method comprises: terminal device determines that the first configuration information, first configuration information include coherent transmission configuration or codebook subset constraint configuration；The terminal device determines according to first configuration information and transmits codebook subset used in upstream data, and the PMI information being carried in pre-coding matrix instruction PMI information domain on target sub-band；The terminal device is according to the PMI information, and in the codebook subset, pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band；The terminal device carries out precoding according to the pre-coding matrix, to the upstream data.Therefore, in the case that coherent transmission configuration or codebook subset constraint configuration are different, the PMI information in PMI information domain is also different, so as to greatly save the expense of PMI information.

Description

Method, terminal device and the network equipment of data precoding

Technical field

The invention relates to wireless communication fields, and more particularly, to a kind of method of data precoding, end End equipment and the network equipment.

Background technique

In 5G system, or in new wireless (New Radio, NR), terminal device can support coherent transmission The transmission of (coherence transmission), partially coherent or incoherent transmission, and respectively in code book of relevant code word The codebook subset of collection, the codebook subset of partially coherent code word and incoherent code word selects used pre-coding matrix.And eventually Frequency selectivity precoding is supported in the uplink of end equipment, i.e., uses different pre-coding matrixes on different uplink subbands.Cause How this, realize and use different pre-coding matrixes on different sub-band and save pre-coding matrix instruction (Precoding Matrix Indication, PMI) expense become urgent problem to be solved.

Summary of the invention

The embodiment of the present application provides method, terminal device and the network equipment of a kind of data precoding, can be realized not With using different pre-coding matrixes on subband and save the expense of PMI.

In a first aspect, providing a kind of method of data precoding, comprising: terminal device determines the first configuration information, institute Stating the first configuration information includes coherent transmission configuration or codebook subset constraint configuration；The terminal device is according to first configuration Information determines and transmits codebook subset used in upstream data on target sub-band, and is carried on pre-coding matrix instruction PMI PMI information in information field；The terminal device is according to the PMI information, in the codebook subset, determines in the target Pre-coding matrix used in the upstream data is transmitted on subband；The terminal device is according to the pre-coding matrix, to institute It states upstream data and carries out precoding.

Therefore, terminal device is configured according to coherent transmission or codebook subset constraint configuration determines codebook subset ready for use, Also, in the case that coherent transmission configuration or codebook subset constraint configuration are different, the PMI information in PMI information domain is also different, because This can greatly save PMI information when selecting pre-coding matrix ready for use in the codebook subset according to the PMI information Expense.For example, the PMI information in PMI information domain only needs to include one when the terminal device only supports incoherent transmission PMI, that is, broadband PMI, saves overhead bit.

In one possible implementation, coherent transmission configuration includes coherent transmission, partially coherent transmission and non- At least one of coherent transmission, the codebook subset constraint configuration include codebook subset, the partially coherent of coherent transmission code word At least one of the codebook subset of transmitted codewords and the codebook subset of incoherent transmitted codewords.

In one possible implementation, first configuration information includes coherent transmission configuration, the terminal device Determine the first configuration information, comprising: the terminal device receives the first instruction information that the network equipment is sent, first instruction Information is used to indicate the coherent transmission configuration；Or the terminal device is according to the coherent transmission ability of the terminal device, Determine the coherent transmission configuration, the coherent transmission ability indicates that the terminal device supports coherent transmission, partially coherent to pass The ability of defeated or incoherent transmission.

In one possible implementation, first configuration information includes codebook subset constraint configuration, the terminal Equipment determines the first configuration information, comprising: the second indication information that the terminal device reception network equipment is sent, described second Instruction information is used to indicate the codebook subset constraint configuration.

In one possible implementation, before the terminal device determines the first configuration information, the method is also It include: the coherent transmission ability that the terminal device reports the terminal device to the network equipment.

In one possible implementation, the corresponding different coherent transmission ability of different codebook subset constraints configuration.

In one possible implementation, the coherent transmission configuration only includes incoherent transmission or the code book When subset restriction configuration only includes the codebook subset of incoherent transmitted codewords, the PMI information only includes broadband PMI, wherein institute It states broadband PMI and is used to indicate the terminal device and transmit precoding square used in the upstream data on entire transmission bandwidth Battle array.

In one possible implementation, the terminal device is according to the PMI information, in the codebook subset, Pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band, comprising: the terminal device is by institute The code word indicated in codebook subset by the broadband PMI is stated, is determined as transmitting the upstream data institute on the target sub-band The pre-coding matrix used.

In one possible implementation, the coherent transmission configuration includes coherent transmission or the codebook subset When constraint configuration includes the codebook subset of coherent transmission code word, the PMI information includes occupying at least with the terminal device Corresponding at least one subband PMI of one subband, wherein each subband PMI is used to indicate the terminal device in correspondence Pre-coding matrix used in the upstream data is transmitted on subband.

In one possible implementation, the terminal device is according to the PMI information, in the codebook subset, Pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band, comprising: the terminal device is in institute It states at least one subband PMI, determines target sub-band PMI corresponding with the target sub-band；The terminal device is according to Target sub-band PMI determines the code word of target sub-band PMI instruction in the codebook subset, and by the target sub-band The code word of PMI instruction is determined as transmitting the pre-coding matrix used in the upstream data on the target sub-band.

In one possible implementation, the terminal device is according to the PMI information, in the codebook subset, Pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band, comprising: the terminal device is in institute It states at least one subband PMI, determines target sub-band PMI corresponding with the target sub-band；The terminal device is according to Target sub-band PMI determines the code word of the target sub-band PMI instruction, and will be described in a subset of the codebook subset The code word of target sub-band PMI instruction is determined as transmitting the precoding used in the upstream data on the target sub-band Matrix, wherein the position for the element that value is 0 in one subset is all the same.

In one possible implementation, the coherent transmission configuration includes partially coherent transmission or the code book When subset restriction configuration includes the codebook subset of partially coherent transmitted codewords, the PMI information includes accounting for the terminal device Corresponding at least one subband PMI of at least one subband, wherein each subband PMI is used to indicate the terminal and sets It is standby that pre-coding matrix used in the upstream data is transmitted in corresponding subband.

In one possible implementation, it also carries and is used to indicate in the codebook subset in the PMI information domain One subset instruction information.

In one possible implementation, it is respectively corresponded at least at least one subband occupied with the terminal device In one subband PMI, each subband PMI is the code word of each subband PMI instruction in the codebook subset or the code book Index in one subset of subset.

In one possible implementation, corresponding at least with the terminal device at least one subband occupied Reference subband PMI in one subband PMI is index of the code word indicated with reference to subband PMI in the codebook subset, In corresponding at least one subband PMI of at least one subband for occupying with the terminal device, subband is referred to except described Other subbands PMI except PMI is indicated with described with reference to subband PMI for the index of the code word of other subbands PMI instruction Code word index between difference.

In one possible implementation, the terminal device is carried on PMI according to first configuration information, determination PMI information in information field: the terminal device determines the size in the PMI information domain according to first configuration information；Institute Terminal device is stated according to the size in the PMI information domain, determines the Downlink Control Information DCI for carrying the PMI information domain Size.

Second aspect provides a kind of method of data precoding, comprising: the institute that network equipment receiving terminal apparatus reports The coherent transmission ability of terminal device is stated, the coherent transmission ability indicates that the terminal device supports coherent transmission, part phase The ability of dry transmission or incoherent transmission；The network equipment determines that the terminal device exists according to the coherent transmission ability Codebook subset used in upstream data is transmitted on target sub-band；The network equipment is in the codebook subset, described in determination Terminal device transmits pre-coding matrix used in the upstream data on the target sub-band；The network equipment is by holding The PMI information being loaded in pre-coding matrix instruction PMI information domain, Xiang Suoshu terminal device indicate the pre-coding matrix.

Therefore, the network equipment determines codebook subset ready for use, also, phase according to the coherent transmission ability of terminal device PMI information in the case that dry transmission configuration or codebook subset constraint configuration are different, in the PMI information domain of network equipment transmission Difference, therefore the expense of PMI information can be greatlyd save.For example, when the terminal device only supports incoherent transmission, PMI information PMI information in domain only needs to include a PMI i.e. broadband PMI, saves overhead bit.

In one possible implementation, the method also includes: the network equipment is sent to the terminal device Indicate that information, the instruction information are used to indicate the first configuration information, first configuration information is true for the terminal device The fixed codebook subset, first configuration information include coherent transmission configuration or codebook subset constraint configuration.

In one possible implementation, the network equipment is by the PMI information that is carried in PMI information domain, to The terminal device indicates the pre-coding matrix, comprising: the network equipment is set by the broadband PMI, Xiang Suoshu terminal It is standby to indicate the pre-coding matrix.

In one possible implementation, the network equipment is by the PMI information that is carried in PMI information domain, to The terminal device indicates the pre-coding matrix, comprising: the network equipment passes through target corresponding with the target sub-band Subband PMI, Xiang Suoshu terminal device indicates the pre-coding matrix.

In one possible implementation, the network equipment determines the terminal device in the codebook subset Pre-coding matrix used in the upstream data is transmitted on the target sub-band, comprising: the network equipment is in the code In a subset of this subset, the pre-coding matrix is determined, wherein the position for the element that value is 0 in one subset It is all the same.

In one possible implementation, the PMI information domain, which also carries, is used to indicate in the codebook subset The instruction information of one subset.

In one possible implementation, at least one is respectively corresponded at least one subband that the terminal device occupies In a subband PMI, each subband PMI is the code word of each subband PMI instruction in the codebook subset or code book Index in one subset of collection.

The third aspect provides a kind of terminal device, which can execute above-mentioned first aspect or first aspect Any optional implementation in terminal device operation.Specifically, which may include above-mentioned for executing The modular unit of the operation of terminal device in any possible implementation of first aspect or first aspect.

Fourth aspect provides a kind of network equipment, which can execute above-mentioned second aspect or second aspect Any optional implementation in the network equipment operation.Specifically, which may include above-mentioned for executing The modular unit of the operation of the network equipment in any possible implementation of second aspect or second aspect.

5th aspect, provides a kind of terminal device, which includes: processor, transceiver and memory.Its In, it is communicated with each other between the processor, transceiver and memory by internal connecting path.The memory for storing instruction, The processor is used to execute the instruction of memory storage.When the processor executes the instruction of memory storage, the execution So that the method or the execution in any possible implementation of terminal device execution first aspect or first aspect make It obtains the terminal device and realizes the terminal device that the third aspect provides.

6th aspect, provides a kind of network equipment, which includes: processor, transceiver and memory.Its In, it is communicated with each other between the processor, transceiver and memory by internal connecting path.The memory for storing instruction, The processor is used to execute the instruction of memory storage.When the processor executes the instruction of memory storage, the execution So that the method or the execution in any possible implementation of network equipment execution second aspect or second aspect make It obtains the network equipment and realizes the network equipment that fourth aspect provides.

7th aspect, provides a kind of computer readable storage medium, the computer-readable recording medium storage has journey Sequence, it is above-mentioned in a first aspect, and its any data precoding in various implementations that described program executes terminal device Method.

Eighth aspect, provides a kind of computer readable storage medium, and the computer-readable recording medium storage has journey Sequence, described program make the network equipment execute any data precoding in above-mentioned second aspect and its various implementations Method.

9th aspect, provide a kind of System on Chip/SoC, the System on Chip/SoC include input interface, output interface, processor and Memory, which is used to execute the instruction of memory storage, when the instruction is performed, before which may be implemented State the method in any possible implementation of first aspect or first aspect.

Tenth aspect, provide a kind of System on Chip/SoC, the System on Chip/SoC include input interface, output interface, processor and Memory, which is used to execute the instruction of memory storage, when the instruction is performed, before which may be implemented State the method in any possible implementation of second aspect or second aspect.

On the one hand tenth, provides a kind of computer program product including instruction, when the computer program product exists When being run on computer, so that the computer executes in any possible implementation of above-mentioned first aspect or first aspect Method.

12nd aspect, provides a kind of computer program product including instruction, when the computer program product exists When being run on computer, so that the computer executes in any possible implementation of above-mentioned second aspect or second aspect Method.

Detailed description of the invention

Fig. 1 is a kind of schematic architectural diagram of application scenarios of the embodiment of the present application.

Fig. 2 is the schematic flow chart of the method for the data precoding of the embodiment of the present application.

Fig. 3 is the schematic flow chart of the method for the data precoding of another embodiment of the application.

Fig. 4 is the schematic block diagram of the terminal device of the embodiment of the present application.

Fig. 5 is the schematic block diagram of the network equipment of the embodiment of the present application.

Fig. 6 is the schematic diagram of the communication equipment of the embodiment of the present application.

Fig. 7 is the schematic diagram of the System on Chip/SoC of the embodiment of the present application.

Specific embodiment

Below in conjunction with attached drawing, technical solutions in the embodiments of the present application is described.

It should be understood that the technical solution of the embodiment of the present application can be applied to various communication systems, and 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, 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 communications system System (Universal Mobile Telecommunication System, UMTS) and the 5G communication system in future etc..

The application combination terminal device describes each embodiment.Terminal device can also refer to user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, movement set Standby, user terminal, terminal, wireless telecom equipment, user agent or user apparatus.Access terminal can be cellular phone, wireless Phone, session initiation protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL) it stands, personal digital assistant (Personal Digital Assistant, PDA), there is wireless communication function Can handheld device, calculate equipment or be connected to radio modem other processing equipments, mobile unit, wearable set It is standby, Land Public Mobile Communication Network (the Public Land Mobile of terminal device or the following evolution in the following 5G network Network, PLMN) terminal device etc. in network.

The application combination network equipment describes each embodiment.The network equipment can be for being led to terminal device The equipment of letter, for example, it may be the base station (Base Transceiver Station, BTS) in gsm system or CDMA, it can also To be the base station (NodeB, NB) in WCDMA system, the evolved base station (Evolutional in LTE system can also be Node B, eNB or eNodeB) or the network equipment can for relay station, access point, mobile unit, wearable device and Network side equipment in the following 5G network or the network side equipment in the PLMN network of the following evolution etc..

Fig. 1 is the schematic diagram of an application scenarios of the embodiment of the present application.Communication system in Fig. 1 may include that network is set Standby 10 and terminal device 20.The network equipment 10 is used to provide communication service and core network access, terminal device for terminal device 20 20 synchronization signal, the broadcast singals etc. that can be sent by the search network equipment 10 access network, to carry out and network Communication.Arrow shown in Fig. 1 can be indicated through the cellular link progress between terminal device 20 and the network equipment 10 Uplink/downlink transmission.

Network in the embodiment of the present application can refer to public land mobile network (Public Land Mobile Network, PLMN) perhaps equipment is to equipment (Device to Device D2D) network or Machine To Machine/people (Machine to Machine/Man, M2M) network or other networks, Fig. 1 are the rough schematic view illustrated, and are gone back in network It may include other terminal devices, do not drawn in Fig. 1.

Fig. 2 is the schematic flow chart of the method for the data precoding of the embodiment of the present application.Method shown in Fig. 2 can be by Terminal device executes, which can be for example terminal device 20 shown in Fig. 1.As shown in Fig. 2, the data precoding Method include:

In 210, terminal device determines the first configuration information, which includes coherent transmission configuration or code book Subset restriction configuration.

Optionally, coherent transmission configuration includes at least one in coherent transmission, partially coherent transmission and incoherent transmission Kind.

Optionally, codebook subset constraint configuration includes the codebook subset of coherent transmission code word, partially coherent transmitted codewords Codebook subset and at least one of the codebook subset of incoherent transmitted codewords.

Optionally, when which includes coherent transmission configuration, in 210, which determines that first matches Confidence breath, comprising: the terminal device receives the first instruction information that the network equipment is sent, which is used to indicate this Coherent transmission configuration；Alternatively, coherent transmission ability of the terminal device according to the terminal device, determines that the coherent transmission configures.

Wherein, which indicates that the terminal device supports coherent transmission, partially coherent transmission or incoherent biography Defeated ability.

Specifically, terminal device can determine that coherent transmission is configured according to the coherent transmission ability of oneself；Alternatively, network is set It is standby to determine that coherent transmission configures according to the coherent transmission ability that terminal device reports for terminal device, and be sent to terminal Equipment.If terminal device has the ability of coherent transmission, coherent transmission configuration includes coherent transmission, partially coherent biography At least one of defeated and incoherent transmission；If terminal device has the ability of partially coherent transmission, the coherent transmission Configuration includes at least one of partially coherent transmission and incoherent transmission；If terminal device has the energy of incoherent transmission Power, then coherent transmission configuration includes incoherent transmission.After terminal device obtains coherent transmission configuration, can be based on should Coherent transmission configuration selects suitable codebook subset.

Optionally, when which includes codebook subset constraint configuration, in 210, which determines the One configuration information, comprising: the terminal device receives the second indication information that the network equipment is sent, and the second indication information is for referring to Show that the codebook subset constraint configures.

Optionally, before 210, i.e., before the terminal device determines the first configuration information, this method further include: the end End equipment reports the coherent transmission ability of the terminal device to the network equipment.

Wherein, different codebook subset constraint information corresponds to different coherent transmission abilities.

That is, different codebook subset constraint configurations is the different coherent transmission energy reported based on the terminal device What power determined.

For example, the terminal device can determine that the codebook subset constraint configures according to the coherent transmission ability of oneself；Or The network equipment can be according to the coherent transmission ability that terminal device reports, for terminal device selection and corresponding coherent transmission ability Corresponding codebook subset or codebook subset corresponding with more Low coherence transmittability are configured as codebook subset constraint, and are sent To terminal device.

If terminal device has the ability of coherent transmission, codebook subset constraint configuration includes coherent transmission code word Codebook subset, partially coherent transmitted codewords codebook subset and at least one of the codebook subset of incoherent transmitted codewords； If terminal device has the ability of partially coherent transmission, codebook subset constraint configuration includes partially coherent transmitted codewords Codebook subset and at least one of the codebook subset of incoherent transmitted codewords；If terminal device has incoherent transmission Ability, then codebook subset constraint configuration includes the codebook subset of incoherent transmitted codewords.Terminal device obtains code book After collection constraint configuration, it is known that codebook subset ready for use.

In 220, which determines that upstream data is transmitted on target sub-band to be made according to first configuration information Codebook subset, and it is carried on pre-coding matrix instruction (Precoding Matrix Indication, PMI) information field In PMI information.

Wherein, any one subband at least one subband which can occupy for terminal device.The end The size of each subband by network equipments configuration and can be informed to terminal device at least one subband that end equipment occupies, Or it can also be pre-stored in terminal device and for example arrange the subband size with the network equipment in advance.Alternatively, the network equipment is dispatched There are mapping relations between the terminal device different scheduling bandwidths carried out data transmission and different sub-band size, terminal device can be with According to the scheduling bandwidth of configuration, the size of the corresponding target sub-band is determined.

Specifically, which can configure according to codebook subset constraint knows codebook subset ready for use.Alternatively, should Terminal device can configure according to coherent transmission and determine codebook subset ready for use, wherein coherent transmission is configured to coherent transmission When, it can choose the codebook subset of coherent transmission code word, the codebook subset of partially coherent transmitted codewords and incoherent transmitted codewords At least one of codebook subset；When coherent transmission is configured to partially coherent transmission, it can choose partially coherent transmitted codewords Codebook subset and at least one of the codebook subset of incoherent transmitted codewords, when coherent transmission is configured to incoherent transmission, It is only capable of selecting the codebook subset of incoherent transmitted codewords.

Optionally, in 220, which is carried in PMI information domain according to first configuration information, determination PMI information, comprising: the terminal device determines the size in the PMI information domain according to first configuration information；The terminal device root According to the size in the PMI information domain, the size for carrying the Downlink Control Information DCI in the PMI information domain is determined.

Specifically, which can come true according to the corresponding bit number of content of the PMI information in PMI information domain The size in PMI information domain is determined, so that it is determined that carrying Downlink Control Information (the Download Control in the PMI information domain Information, DCI) size.After terminal device has determined the size of the DCI, DCI can be carried out according to the DCI size Blind examination, to obtain the information in the PMI information domain carried in DCI.

In 230, the terminal device is according to the PMI information in PMI information domain, in the codebook subset, determines at this Pre-coding matrix used in the upstream data is transmitted on target sub-band.

Specifically, which, can according to the first configuration information, i.e. coherent transmission configuration or codebook subset constraint configuration With determination codebook subset ready for use.In general, which can also receive the PMI of network equipment transmission, thus root Suitable precoding mode is selected to be used in the target sub-band transmitting data from the codebook subset according to the PMI.PMI carrying In PMI information domain, PMI information domain and traditional PMI information domain during the application is real-time the difference is that, it is traditional The PMI is only included in PMI information domain, since the embodiment of the present application is directed to different sub-band, i.e., can be used on different sub-band Therefore it not only may include a PMI in the PMI information domain that different pre-coding matrixes, which carries out precoding to data to be transmitted, It can also include multiple PMI to correspond respectively to different subbands, PMI corresponding with each subband is known as subband here PMI.Include a PMI or multiple PMI in the PMI information domain, is specifically dependent upon the coherent transmission ability of the terminal device, or It is related to the content of first configuration information that person, which says,.

The terminal device can specifically be determined by any mode in following three kinds of modes due in the target sub-band Pre-coding matrix used in upper transmission upstream data, describes separately below.

Mode 1

Optionally, coherent transmission configuration only includes incoherent transmission or codebook subset constraint configuration only includes non- When the codebook subset of coherent transmission code word, which only includes broadband PMI.

Wherein, broadband PMI, which is used to indicate the terminal device and transmits the upstream data on entire transmission bandwidth, is used Pre-coding matrix.

Optionally, in 230, the terminal device is according to the PMI information, in the codebook subset, determines in target Take transmit the upstream data used in pre-coding matrix, comprising: the terminal device by the codebook subset by broadband PMI The code word of instruction is determined as transmitting the pre-coding matrix used in the upstream data on the target sub-band.

Wherein, optionally, broadband PMI can be with any one code in the determining codebook subset of instruction terminal equipment Word.

Specifically, if the terminal device only supports incoherent transmission, code book of incoherent transmitted codewords can only be used Collection, then only needing in the PMI information carried in PMI information domain includes a broadband PMI.Due to the PMI information at this time It only include broadband PMI, therefore broadband PMI is applied to the entire transmission bandwidth that the terminal device occupies.I.e. no matter the terminal is set For in any fractional bandwidth transmitting data, precoding is selected by the code book of broadband PMI instruction all in accordance in the codebook subset Matrix, and precoding is carried out to the data using the pre-coding matrix.

In an incoherent transmitted codewords, different data flows is transmitted from different antenna ports, a number It can only be transmitted from an antenna port according to stream, so only one nonzero element of each column of corresponding code word, such as:

Mode 2

Optionally, coherent transmission configuration includes coherent transmission or codebook subset constraint configuration includes coherent transmission When the codebook subset of code word, which includes at least one subband corresponding at least one occupied with the terminal device A subband PMI.

Wherein, each subband PMI is used to indicate the terminal device and is transmitted used in the upstream data in corresponding subband Pre-coding matrix.

Optionally, in 230, the terminal device is according to the PMI information, in the codebook subset, determines in target It takes and transmits pre-coding matrix used in the upstream data, comprising: the terminal device is at least one subband PMI, really Fixed target sub-band PMI corresponding with the target sub-band；The terminal device is according to target sub-band PMI, in the codebook subset really The code word of fixed target sub-band PMI instruction, and the target sub-band PMI code word indicated is determined as transmitting on the target sub-band The pre-coding matrix used in the upstream data.

Alternatively, optionally, in 230, the terminal device is according to the PMI information, in the codebook subset, determine in the mesh Transmit pre-coding matrix used in the upstream data on mark subband, comprising: the terminal device according to target sub-band PMI, The code word of target sub-band PMI instruction, and the code word that target sub-band PMI is indicated are determined in a subset of the codebook subset It is determined as transmitting the pre-coding matrix used in the upstream data on the target sub-band.

Wherein, in a subset of the codebook subset, the position for the element that value is 0 is all the same.

Wherein, optionally, each subband PMI can be with any one code in the determining codebook subset of instruction terminal equipment Word, or indicate a code word in a subset of the codebook subset, the position for the element that value is 0 in a subset is equal It is identical.

Optionally, the instruction letter for a subset being used to indicate in the codebook subset is also carried in the PMI information domain Breath.Terminal device is according to the instruction information in the PMI information domain received, it is known that in subset in the codebook subset Code word.

It specifically, include coherent transmission code in the codebook subset used if the terminal device can support coherent transmission Word, then the PMI information carried in PMI information domain needs to include that at least one subband occupied with the terminal device respectively corresponds At least one subband PMI.At least one subband and at least one subband PMI are corresponded, at least one subband PMI Each subband PMI indicate respectively terminal device precoding used in the corresponding subband transmitting data of subband PMI Matrix.

Terminal device can be at least one subband PMI, it is first determined target sub-band corresponding with the target sub-band PMI.And according to target sub-band PMI, the code word of target sub-band PMI instruction is determined in the codebook subset, thus in the mesh Pre-coding matrix used in mark subband transmitting data is the code word of target sub-band PMI instruction.Alternatively, terminal device The code word of target sub-band PMI instruction can be determined in a subset of the codebook subset according to target sub-band PMI, it should The element position that value is 0 in all code words of subset is all the same, pre-coding matrix used in all subband transmitting datas It can be obtained from the subset.

In the code word of a coherent transmission, a data flow can be transmitted on all antenna ports simultaneously, so right Answering does not have value in code word be 0 element, and each column are all nonzero elements.

Mode 3

Optionally, coherent transmission configuration includes partially coherent transmission or codebook subset constraint configuration includes part When the codebook subset of coherent transmission code word, which includes that at least one subband occupied with the terminal device respectively corresponds At least one subband PMI.

Alternatively, optionally, in 230, the terminal device is according to the PMI information, in the codebook subset, determine in the mesh Pre-coding matrix used in the upstream data is transmitted on mark subband, comprising: the terminal device is at least one subband PMI In, determine target sub-band PMI corresponding with the target sub-band；The terminal device is according to target sub-band PMI, in the codebook subset A subset in determine the target sub-band PMI instruction code word, and by target sub-band PMI indicate code word be determined as at this The pre-coding matrix used in the upstream data is transmitted on target sub-band.

Wherein, in the subset of the codebook subset, the position for the element that value is 0 is all the same.

Optionally, each subband PMI can with instruction terminal equipment determine the codebook subset in any one code word, or Person indicates a code word in a subset of the codebook subset, and the position for the element that value is 0 in a subset is all the same.

Optionally, the instruction letter for a subset being used to indicate in the codebook subset is also carried in the PMI information domain Breath.Terminal device is according to the instruction information in the PMI information domain of reception channel, it is known that in subset in the codebook subset Code word.

Specifically, if the terminal device can include part phase in the codebook subset that uses with support section coherent transmission Dry transmitted codewords, then the PMI information carried in PMI information domain needs to include at least one subband occupied with the terminal device Corresponding at least one subband PMI.At least one subband and at least one subband PMI are corresponded, this at least one Each subband PMI in subband PMI indicates respectively that the terminal device is used in the corresponding subband transmitting data of subband PMI Pre-coding matrix.

In the code word of partially coherent transmission, a data flow can be transmitted on all antenna ports simultaneously, institute Multiple 0 elements and multiple nonzero elements are shown to correspond at least the one of code word, such as:

In mode 2 and mode 3, pre-coding matrix is indicated by least one subband PMI in PMI information, specifically may be used It is indicated in a manner of through following two:

(1) independent instruction

It is respectively corresponded in an at least subband PMI at least one subband occupied with the terminal device, each subband PMI Index of the code word indicated for each subband PMI in a subset of the codebook subset or the codebook subset.

Wherein, each subband PMI can indicate that N is positive integer using N-bit.

In such as, target sub-band PMI in PMI information is just the code word of target sub-band PMI instruction in the codebook subset Index, or index of the code word in the subset of the codebook subset for target sub-band PMI instruction.

(2) difference indicates

Reference subband at least one subband PMI corresponding at least one subband that the terminal device occupies PMI, for the index of the code word with reference to subband PMI instruction in the codebook subset.Also, it is occupied extremely with the terminal device In few corresponding at least one subband PMI of a subband, other subbands PMI in addition to this is with reference to subband PMI, for this its Difference between the index of the code word of his subband PMI instruction, and the index of the code word with reference to subband PMI instruction.

For example, being the index of the code word that indicate with reference to subband PMI in the codebook subset with reference to subband PMI, it is assumed that refer to Subband PMI is index K1, if index of the code word that indicates of some subband PMI in other subbands PMI in codebook subset is K2, then subband PMI is K1-K2.

The instruction for carrying out pre-coding matrix in this way, since the overhead bit of other subbands PMI can be less than ginseng The overhead bit of subband PMI is examined, to save DCI signaling overheads.

In 240, which carries out precoding according to the pre-coding matrix, to the upstream data.

In aforesaid way 1, the PMI information being carried in PMI information domain only includes broadband PMI, therefore the terminal device Precoding is carried out to data to be transmitted using identical pre-coding matrix on each subband.In aforesaid way 2 and mode 3, Terminal device is on each subband using the code word of the corresponding subband PMI instruction of each subband as pre-coding matrix.

As can be seen that terminal device is configured according to coherent transmission or codebook subset constraint configures really in the embodiment of the present application Fixed codebook subset ready for use, also, in the case where coherent transmission configuration or codebook subset constraint configuration difference, PMI information domain In PMI information it is also different, therefore, when selecting pre-coding matrix ready for use in the codebook subset according to the PMI information, The expense of PMI information can be greatlyd save.For example, the PMI when terminal device only supports incoherent transmission, in PMI information domain Information only needs to include a PMI i.e. broadband PMI, saves overhead bit.

Fig. 3 is the schematic flow chart of the method for the data precoding of the embodiment of the present application.Method shown in Fig. 3 can be by The network equipment executes, which can be for example the network equipment 10 shown in Fig. 1.As shown in figure 3, the data precoding Method include:

In 310, the coherent transmission ability for the terminal device that network equipment receiving terminal apparatus reports, it is described relevant Transmittability indicates the ability that the terminal device supports coherent transmission, partially coherent transmission or incoherent transmission.

In 320, the network equipment determines the terminal device on target sub-band according to the coherent transmission ability Transmit codebook subset used in upstream data.

In 330, the network equipment determines the terminal device on the target sub-band in the codebook subset Transmit pre-coding matrix used in the upstream data.

In 340, the network equipment passes through the PMI information that is carried in PMI information domain, the instruction of Xiang Suoshu terminal device The pre-coding matrix.

Optionally, the method also includes: the network equipments sends instruction information, the instruction to the terminal device Information is used to indicate the first configuration information, and first configuration information determines the codebook subset, institute for the terminal device Stating the first configuration information includes coherent transmission configuration or codebook subset constraint configuration.

Optionally, coherent transmission configuration include in coherent transmission, partially coherent transmission and incoherent transmission at least One kind, the codebook subset constraint configuration include code book of the codebook subset of coherent transmission code word, partially coherent transmitted codewords At least one of the codebook subset of collection and incoherent transmitted codewords.

Optionally, different codebook subset constraints configuration is the different coherent transmission energy reported based on the terminal device What power determined.

In 340, the network equipment can indicate to upload in the target sub-band by following three kinds of modes to terminal device Pre-coding matrix used in the defeated upstream data.It is carried in PMI information domain particular by terminal device transmission PMI information is indicated.Wherein PMI information may include broadband PMI or including at least one subband PMI.Lower mask body is retouched State these three modes.

Mode 1

Optionally, the coherent transmission configuration only includes that incoherent transmission or codebook subset constraint configuration are only wrapped When including the codebook subset of incoherent transmitted codewords, the PMI information only includes broadband PMI, wherein the broadband PMI is for referring to Show that the terminal device transmits pre-coding matrix used in the upstream data on entire transmission bandwidth.

Optionally, the network equipment passes through the PMI information that is carried in PMI information domain, the instruction of Xiang Suoshu terminal device The pre-coding matrix, comprising: the network equipment indicates the precoding by the broadband PMI, Xiang Suoshu terminal device Matrix.

Mode 2

Optionally, the coherent transmission configuration includes coherent transmission or codebook subset constraint configuration includes relevant When the codebook subset of transmitted codewords, the PMI information includes that at least one subband occupied with the terminal device respectively corresponds At least one subband PMI, wherein each subband PMI is used to indicate the terminal device and transmits on described in corresponding subband Pre-coding matrix used in row data.

Optionally, the network equipment passes through the PMI information that is carried in PMI information domain, the instruction of Xiang Suoshu terminal device The pre-coding matrix, comprising: the network equipment is by target sub-band PMI corresponding with the target sub-band, to the end End equipment indicates the pre-coding matrix.

Mode 3

Optionally, the coherent transmission configuration includes partially coherent transmission or codebook subset constraint configuration includes When the codebook subset of partially coherent transmitted codewords, the PMI information includes at least one subband occupied with the terminal device Corresponding at least one subband PMI, wherein each subband PMI is used to indicate the terminal device and uploads in corresponding subband Pre-coding matrix used in the defeated upstream data.

Optionally, the network equipment determines the terminal device on the target sub-band in the codebook subset Transmit pre-coding matrix used in the upstream data, comprising: a subset of the network equipment in the codebook subset In, determine the pre-coding matrix wherein, the position for the element that value is 0 in one subset is all the same.

Optionally, the PMI information domain also carries the finger for the one subset being used to indicate in the codebook subset Show information.

Optionally, at least one subband occupied with the terminal device respectively corresponds every in an at least subband PMI A subband PMI is the code word of each subband PMI instruction in the codebook subset or one son of the codebook subset The index of concentration.

Optionally, at least one subband PMI corresponding at least one subband that the terminal device occupies It is set for index of the code word indicated with reference to subband PMI in the codebook subset with the terminal with reference to subband PMI Other sons in standby corresponding at least one subband PMI of at least one subband occupied, in addition to the PMI with reference to subband Band PMI, between the index of the code word of other subbands PMI instruction, and the index of the code word with reference to subband PMI instruction Difference.

It should be understood that the network equipment carries out the detail of the process of precoding instruction, can refer in earlier figures 2 to terminal The associated description of equipment, for sake of simplicity, which is not described herein again.

It should also be understood that magnitude of the sequence numbers of the above procedures are not meant to execute in the various embodiments of the application Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the reality without coping with the embodiment of the present application It applies process and constitutes any restriction.

The method chosen according to the carrier wave of the embodiment of the present application has been described in detail above, below in conjunction with Fig. 4 to Fig. 7, Device according to the embodiment of the present application is described, technical characteristic described in embodiment of the method is suitable for following Installation practice.

Fig. 4 is the schematic block diagram according to the terminal device 400 of the embodiment of the present application.As shown in figure 4, the terminal device 400 include determination unit 410 and precoding unit 420.

Determination unit 410 is used for: determining that the first configuration information, first configuration information include coherent transmission configuration or code The configuration of this subset restriction；According to first configuration information, determines and transmit code book used in upstream data on target sub-band Subset, and the PMI information being carried in pre-coding matrix instruction PMI information domain；According to the PMI information, in the code book In subset, pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band；

Precoding unit 420 is used for: the pre-coding matrix determined according to the determination unit 410, to the uplink Data carry out precoding.

Optionally, the terminal device further includes receiving unit, and the determination unit 410 is specifically used for: being connect by described It receives unit and receives the first instruction information that the network equipment is sent, the first instruction information is used to indicate the coherent transmission and matches It sets；Or the coherent transmission ability according to the terminal device, determine the coherent transmission configuration, the coherent transmission capability list Show the ability that the terminal device supports coherent transmission, partially coherent transmission or incoherent transmission.

Optionally, the terminal device further includes receiving unit, and the determination unit 410 is specifically used for: being connect by described It receives unit and receives the second indication information that the network equipment is sent, the second indication information is used to indicate the codebook subset constraint Configuration.

Optionally, the terminal device further includes transmission unit, and the transmission unit is used for: the Xiang Suoshu network equipment reports The coherent transmission ability of the terminal device.

Optionally, the corresponding different coherent transmission ability of different codebook subset constraints configuration.

Optionally, the determination unit 410 is specifically used for: the code that will be indicated in the codebook subset by the broadband PMI Word is determined as transmitting the pre-coding matrix used in the upstream data on the target sub-band.

Optionally, the determination unit 410 is specifically used for: at least one subband PMI, the determining and target The corresponding target sub-band PMI of subband；According to the target sub-band PMI, the target sub-band PMI is determined in the codebook subset The code word of instruction, and be determined as the target sub-band PMI code word indicated to transmit the upper line number on the target sub-band According to the used pre-coding matrix.

Optionally, the determination unit 410 is specifically used for: at least one subband PMI, the determining and target The corresponding target sub-band PMI of subband；According to the target sub-band PMI, in a subset of the codebook subset described in determination The code word of target sub-band PMI instruction, and the target sub-band PMI code word indicated is determined as transmitting on the target sub-band The pre-coding matrix used in the upstream data, wherein the position for the element that value is 0 in one subset is homogeneous Together.

Optionally, the one subset being used to indicate in the codebook subset is also carried in the PMI information domain Indicate information.

Optionally, it is respectively corresponded in an at least subband PMI at least one subband occupied with the terminal device, often A subband PMI is the code word of each subband PMI instruction in the codebook subset or one son of the codebook subset The index of concentration.

Optionally, the determination unit 410 is specifically used for: according to first configuration information, determining the PMI information domain Size；According to the size in the PMI information domain, determine that the Downlink Control Information DCI's for carrying the PMI information domain is big It is small.

It should be understood that the terminal device 400 can execute the method 200 of the execution of the terminal device in above method embodiment Corresponding operating, for sake of simplicity, details are not described herein.

Fig. 5 is the schematic block diagram according to the network equipment 500 of the embodiment of the present application.As shown in figure 5, the network equipment 500 include receiving unit 510, determination unit 520 and indicating unit 530.Wherein:

Receiving unit 510 is used for: the coherent transmission ability for the terminal device that receiving terminal apparatus reports, described relevant Transmittability indicates the ability that the terminal device supports coherent transmission, partially coherent transmission or incoherent transmission；

Determination unit 520 is used for: according to the received coherent transmission ability of the receiving unit, determining that the terminal is set It is standby that codebook subset used in upstream data is transmitted on target sub-band；In the codebook subset, the terminal device is determined Pre-coding matrix used in the upstream data is transmitted on the target sub-band；

Indicating unit 530 is used for: by the PMI information being carried in pre-coding matrix instruction PMI information domain, to the end End equipment indicates the pre-coding matrix.

Optionally, the network equipment further includes transmission unit, and the transmission unit is used for: Xiang Suoshu terminal device is sent Indicate that information, the instruction information are used to indicate the first configuration information, first configuration information is true for the terminal device The fixed codebook subset, first configuration information include coherent transmission configuration or codebook subset constraint configuration.

Optionally, the indicating unit 530 is specifically used for: by the broadband PMI, described in the instruction of Xiang Suoshu terminal device Pre-coding matrix.

Optionally, the indicating unit 530 is specifically used for: by target sub-band PMI corresponding with the target sub-band, to The terminal device indicates the pre-coding matrix.

Optionally, the determination unit 520 is also used to: in a subset of the codebook subset, being prelisted described in determination Code matrix, wherein the position for the element that value is 0 in one subset is all the same.

Optionally, it is respectively corresponded in an at least subband PMI at least one subband that the terminal device occupies, each Subband PMI is one subset of the code word in the codebook subset or the codebook subset of each subband PMI instruction In index.

It should be understood that the network equipment 500 can execute the method 300 of the execution of the network equipment in above method embodiment Corresponding operating, for sake of simplicity, details are not described herein.

Fig. 6 is the schematic diagram according to the communication equipment 600 of the embodiment of the present application.As shown in fig. 6, the communication equipment Including processor 610, transceiver 620 and memory 630, wherein between the processor 610, transceiver 620 and memory 630 It is communicated with each other by internal connecting path.For storing instruction, the processor 610 is for executing the memory for the memory 630 The instruction of 630 storages receives signal or transmission signal to control the transceiver 620.

Optionally, which can call the program code stored in memory 630, execute in embodiment of the method Terminal device execute method 200 corresponding operating, for sake of simplicity, details are not described herein.

Optionally, which can call the program code stored in memory 630, execute in embodiment of the method The network equipment execute method 300 corresponding operating, for sake of simplicity, details are not described herein.

It should be understood that the processor of the embodiment of the present application may be a kind of IC chip, the processing capacity with signal. During realization, each step of above method embodiment can be by the integrated logic circuit of the hardware in processor or soft The instruction of part form is completed.Above-mentioned processor can be general processor, digital signal processor (Digital Signal Processor, DSP), it is specific integrated circuit (Application Specific Integrated Circuit, ASIC), existing At programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete Door or transistor logic, discrete hardware components.It may be implemented or execute the disclosed each side in the embodiment of the present application Method, step and logic diagram.General processor can be microprocessor or the processor is also possible to any conventional processing Device etc..The step of method in conjunction with disclosed in the embodiment of the present application, can be embodied directly in hardware decoding processor and execute completion, Or in decoding processor hardware and software module combination execute completion.Software module can be located at random access memory, dodge It deposits, read-only memory, this fields such as programmable read only memory or electrically erasable programmable memory, register are mature to deposit In storage media.The storage medium is located at memory, and processor reads the information in memory, completes the above method in conjunction with its hardware The step of.

It is appreciated that the memory in the embodiment of the present application can be volatile memory or nonvolatile memory, or It may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read- Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable Device (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), be used as external high Speed caching.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links Dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DR RAM).It should be noted that the memory of system and method described herein be intended to include but be not limited to these and The memory of any other suitable type.

Fig. 7 is a schematic diagram of the System on Chip/SoC of the embodiment of the present application.The System on Chip/SoC 700 of Fig. 7 includes defeated Incoming interface 701, output interface 702, at least one processor 703, memory 704, the input interface 701, output interface 702, it is interconnected between the processor 703 and memory 704 by internal connecting path.The processor 703 is used for Execute the code in the memory 704.

Optionally, when the code is performed, the processor 703 be may be implemented in embodiment of the method by terminal device The method 200 of execution.For sake of simplicity, which is not described herein again.

Optionally, when the code is performed, the processor 703 be may be implemented in embodiment of the method by the network equipment The method 300 of execution.For sake of simplicity, which is not described herein again.

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 is drawn Point, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for The mutual coupling, direct-coupling or communication connection of opinion can be through some interfaces, the INDIRECT COUPLING of device or unit Or communication connection, it 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, can integrate in a monitoring unit in each functional unit in each embodiment of the application 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, read-only memory (Read-Only Memory, ROM), arbitrary access are deposited The various media that can store program code such as reservoir (Random Access Memory, RAM), magnetic or disk.

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 shall be subject to the protection scope of the claim.

Claims

1. a kind of method of data precoding, which is characterized in that the described method includes:

Terminal device determines that the first configuration information, first configuration information include that coherent transmission configuration or codebook subset constraint are matched It sets；

The terminal device determines according to first configuration information and transmits code book used in upstream data on target sub-band Subset, and the PMI information being carried in pre-coding matrix instruction PMI information domain；

The terminal device is according to the PMI information, in the codebook subset, determines on the target sub-band described in transmission Pre-coding matrix used in upstream data；

The terminal device carries out precoding according to the pre-coding matrix, to the upstream data.

2. the method according to claim 1, wherein coherent transmission configuration includes coherent transmission, part phase At least one of dry transmission and incoherent transmission, the codebook subset constraint configuration include code book of coherent transmission code word At least one of collection, the codebook subset of partially coherent transmitted codewords and codebook subset of incoherent transmitted codewords.

3. method according to claim 1 or 2, which is characterized in that first configuration information includes coherent transmission configuration, The terminal device determines the first configuration information, comprising:

The terminal device receives the first instruction information that the network equipment is sent, and the first instruction information is used to indicate the phase Dry transmission configuration；Or

The terminal device determines the coherent transmission configuration according to the coherent transmission ability of the terminal device, described relevant Transmittability indicates the ability that the terminal device supports coherent transmission, partially coherent transmission or incoherent transmission.

4. method according to claim 1 or 2, which is characterized in that first configuration information includes codebook subset constraint Configuration, the terminal device determine the first configuration information, comprising:

The terminal device receives the second indication information that the network equipment is sent, and the second indication information is used to indicate the code The configuration of this subset restriction.

5. the method according to claim 3 or 4, which is characterized in that the terminal device determine the first configuration information it Before, the method also includes:

The terminal device reports the coherent transmission ability of the terminal device to the network equipment.

6. according to the method described in claim 5, it is characterized in that, different codebook subset constraint configurations corresponds to different be concerned with Transmittability.

7. method according to any one of claim 1 to 6, which is characterized in that the coherent transmission configuration only includes non- When coherent transmission or codebook subset constraint configuration only include the codebook subset of incoherent transmitted codewords, the PMI information It only include broadband PMI,

Wherein, the broadband PMI is used to indicate the terminal device and transmits the upstream data on entire transmission bandwidth and made Pre-coding matrix.

8. the method according to the description of claim 7 is characterized in that the terminal device is according to the PMI information, in the code Book is concentrated, and pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band, comprising:

The code word that the terminal device will be indicated in the codebook subset by the broadband PMI, is determined as in the target sub-band The pre-coding matrix used in the upper transmission upstream data.

9. method according to any one of claim 1 to 6, which is characterized in that the coherent transmission configuration includes relevant When transmission or codebook subset constraint configuration include the codebook subset of coherent transmission code word, the PMI information includes and institute Corresponding at least one subband PMI of at least one subband of terminal device occupancy is stated,

10. according to the method described in claim 9, it is characterized in that, the terminal device according to the PMI information, described In codebook subset, pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band, comprising:

The terminal device determines target sub-band PMI corresponding with the target sub-band at least one subband PMI；

The terminal device determines the target sub-band PMI instruction according to the target sub-band PMI in the codebook subset Code word, and be determined as the target sub-band PMI code word indicated to transmit the upstream data on the target sub-band and made The pre-coding matrix.

11. according to the method described in claim 9, it is characterized in that, the terminal device according to the PMI information, described In codebook subset, pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band, comprising:

The terminal device determines target according to the target sub-band PMI in a subset of the codebook subset Code word with PMI instruction, and the target sub-band PMI code word indicated is determined as transmitting on described on the target sub-band The pre-coding matrix used in row data, wherein the position for the element that value is 0 in one subset is all the same.

12. method according to any one of claim 1 to 6, which is characterized in that the coherent transmission configuration includes part When coherent transmission or codebook subset constraint configuration include the codebook subset of partially coherent transmitted codewords, the PMI information Corresponding at least one subband PMI of at least one subband including being occupied with the terminal device,

13. according to the method for claim 12, which is characterized in that the terminal device is according to the PMI information, described In codebook subset, pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band, comprising:

14. according to the method for claim 12, which is characterized in that the terminal device is according to the PMI information, described In codebook subset, pre-coding matrix used in the upstream data is transmitted in determination on the target sub-band, comprising:

15. method described in 1 or 14 according to claim 1, which is characterized in that also carry in the PMI information domain for referring to Show the instruction information of one subset in the codebook subset.

16. method according to any one of claims 9 to 15, which is characterized in that is occupied with the terminal device At least one subband respectively corresponds in an at least subband PMI, and each subband PMI is the code word of each subband PMI instruction Index in one subset of the codebook subset or the codebook subset.

17. method according to any one of claims 9 to 15, which is characterized in that occupied extremely with the terminal device Reference subband PMI in few corresponding at least one subband PMI of a subband, for the code indicated with reference to subband PMI Index of the word in the codebook subset,

In corresponding at least one subband PMI of at least one subband for occupying with the terminal device, the reference is removed Other subbands PMI except subband PMI are as follows: the index of the code word of other subbands PMI instruction refers to subband PMI with described Difference between the index of the code word of instruction.

18. according to claim 1 to method described in any one of 17, which is characterized in that the terminal device is according to described One configuration information determines the PMI information being carried in PMI information domain:

The terminal device determines the size in the PMI information domain according to first configuration information；

The terminal device determines that the downlink for carrying the PMI information domain controls letter according to the size in the PMI information domain Cease the size of DCI.

19. a kind of method of data precoding, which is characterized in that the described method includes:

The coherent transmission ability for the terminal device that network equipment receiving terminal apparatus reports, the coherent transmission ability indicate The terminal device supports the ability of coherent transmission, partially coherent transmission or incoherent transmission；

The network equipment determines that the terminal device transmits upstream data on target sub-band according to the coherent transmission ability Used codebook subset；

The network equipment determines that the terminal device transmits the uplink on the target sub-band in the codebook subset Pre-coding matrix used in data；

The network equipment is referred to by the PMI information that is carried in pre-coding matrix instruction PMI information domain, Xiang Suoshu terminal device Show the pre-coding matrix.

20. according to the method for claim 19, which is characterized in that the method also includes:

The network equipment sends instruction information to the terminal device, and the instruction information is used to indicate the first configuration information, First configuration information determines the codebook subset for the terminal device, and first configuration information includes coherent transmission Configuration or codebook subset constraint configuration.

21. according to the method for claim 20, which is characterized in that the coherent transmission configuration includes coherent transmission, part At least one of coherent transmission and incoherent transmission, the codebook subset constraint configuration include code book of coherent transmission code word At least one of collection, the codebook subset of partially coherent transmitted codewords and codebook subset of incoherent transmitted codewords.

22. method described in any one of 9 to 21 according to claim 1, which is characterized in that different codebook subset constraint configurations Corresponding different coherent transmission ability.

23. method described in any one of 9 to 22 according to claim 1, which is characterized in that the coherent transmission, which configures, only includes When incoherent transmission or codebook subset constraint configuration only include the codebook subset of incoherent transmitted codewords, the PMI letter Breath only includes broadband PMI,

24. according to the method for claim 23, which is characterized in that the network equipment is by being carried in PMI information domain PMI information, Xiang Suoshu terminal device indicates the pre-coding matrix, comprising:

The network equipment indicates the pre-coding matrix by the broadband PMI, Xiang Suoshu terminal device.

25. method described in any one of 9 to 22 according to claim 1, which is characterized in that the coherent transmission configuration includes phase When dry transmission or codebook subset constraint configuration include the codebook subset of coherent transmission code word, the PMI information include with Corresponding at least one subband PMI of at least one subband that the terminal device occupies,

26. according to the method for claim 25, which is characterized in that the network equipment is by being carried in PMI information domain PMI information, Xiang Suoshu terminal device indicates the pre-coding matrix, comprising:

The network equipment is indicated described pre- by target sub-band PMI, Xiang Suoshu terminal device corresponding with the target sub-band Encoder matrix.

27. method described in any one of 9 to 22 according to claim 1, which is characterized in that the coherent transmission configuration includes portion When coherent transmission or the codebook subset constraint being divided to configure the codebook subset including partially coherent transmitted codewords, the PMI letter Breath includes at least one subband PMI corresponding at least one subband of terminal device occupancy,

28. according to the method for claim 27, which is characterized in that the network equipment is by being carried in PMI information domain PMI information, Xiang Suoshu terminal device indicates the pre-coding matrix, comprising:

29. method described in any one of 9 to 28 according to claim 1, which is characterized in that the network equipment is in the code book It in subset, determines that the terminal device transmits pre-coding matrix used in the upstream data on the target sub-band, wraps It includes:

The network equipment determines the pre-coding matrix in a subset of the codebook subset, wherein one son Concentrate the position that value is 0 element all the same.

30. according to the method for claim 29, which is characterized in that the PMI information domain also carry be used to indicate it is described The instruction information of one subset in codebook subset.

31. the method according to any one of claim 25 to 30, which is characterized in that is occupied with the terminal device At least one subband respectively corresponds in an at least subband PMI, and each subband PMI is the code word of each subband PMI instruction Index in one subset of the codebook subset or the codebook subset.

32. the method according to any one of claim 25 to 30, which is characterized in that occupied extremely with the terminal device Reference subband PMI in few corresponding at least one subband PMI of a subband, for the code indicated with reference to subband PMI Index of the word in the codebook subset,

33. a kind of terminal device, which is characterized in that the terminal device includes:

Determination unit, for determining that the first configuration information, first configuration information include coherent transmission configuration or codebook subset Constraint configuration；

The determination unit is also used to, and according to first configuration information, determines that upstream data is transmitted on target sub-band to be made Codebook subset, and the PMI information being carried in pre-coding matrix instruction PMI information domain；

The determination unit is also used to, and according to the PMI information, in the codebook subset, is determined on the target sub-band Transmit pre-coding matrix used in the upstream data；

Precoding unit, the pre-coding matrix for being determined according to the determination unit carry out the upstream data pre- Coding.

34. terminal device according to claim 33, which is characterized in that coherent transmission configuration include coherent transmission, At least one of partially coherent transmission and incoherent transmission, the codebook subset constraint configuration include the code of coherent transmission code word At least one of this subset, the codebook subset of partially coherent transmitted codewords and codebook subset of incoherent transmitted codewords.

35. the terminal device according to claim 33 or 34, which is characterized in that the terminal device further includes receiving list Member, the determination unit are specifically used for:

The first instruction information that the network equipment is sent is received by the receiving unit, the first instruction information is used to indicate institute State coherent transmission configuration；Or

According to the coherent transmission ability of the terminal device, the coherent transmission configuration is determined, the coherent transmission ability indicates The terminal device supports the ability of coherent transmission, partially coherent transmission or incoherent transmission.

36. the terminal device according to claim 33 or 34, which is characterized in that the terminal device further includes receiving list Member, the determination unit are specifically used for:

The second indication information that the network equipment is sent is received by the receiving unit, the second indication information is used to indicate institute State codebook subset constraint configuration.

37. the terminal device according to claim 35 or 36, which is characterized in that the terminal device further includes sending list Member, the transmission unit are used for:

The coherent transmission ability of the terminal device is reported to the network equipment.

38. the terminal device according to claim 37, which is characterized in that different codebook subset constraint configurations is corresponding different Coherent transmission ability.

39. the terminal device according to any one of claim 33 to 38, which is characterized in that the coherent transmission configuration is only Including incoherent transmission or the codebook subset constraint configuration only include incoherent transmitted codewords codebook subset when, it is described PMI information only includes broadband PMI,

40. terminal device according to claim 39, which is characterized in that the determination unit is specifically used for:

The code word that will be indicated in the codebook subset by the broadband PMI, is determined as transmitting on described on the target sub-band The pre-coding matrix used in row data.

41. the terminal device according to any one of claim 33 to 38, which is characterized in that the coherent transmission configuration packet When including the codebook subset of coherent transmission or codebook subset constraint configuration including coherent transmission code word, the PMI information packet At least one subband PMI corresponding at least one subband that the terminal device occupies is included,

42. terminal device according to claim 41, which is characterized in that the determination unit is specifically used for:

In at least one subband PMI, target sub-band PMI corresponding with the target sub-band is determined；

According to the target sub-band PMI, in the codebook subset, the code word of target sub-band PMI instruction is determined, and by institute The code word for stating target sub-band PMI instruction is determined as transmitting described used in the upstream data prelist on the target sub-band Code matrix.

43. terminal device according to claim 41, which is characterized in that the determination unit is specifically used for:

According to the target sub-band PMI, in a subset of the codebook subset, the target sub-band PMI instruction is determined Code word, and be determined as the target sub-band PMI code word indicated to transmit the upstream data on the target sub-band and made The pre-coding matrix, wherein the position for the element that value is 0 in one subset is all the same.

44. the terminal device according to any one of claim 33 to 38, which is characterized in that the coherent transmission configuration packet It is described when including the codebook subset of partially coherent transmission or codebook subset constraint configuration including partially coherent transmitted codewords PMI information includes at least one subband PMI corresponding at least one subband of terminal device occupancy,

45. terminal device according to claim 44, which is characterized in that the determination unit is specifically used for:

46. terminal device according to claim 44, which is characterized in that the determination unit is specifically used for:

47. the terminal device according to claim 43 or 46, which is characterized in that also carried in the PMI information domain useful In the instruction information for indicating one subset in the codebook subset.

48. the terminal device according to any one of claim 41 to 47, which is characterized in that accounted for the terminal device At least one subband respectively corresponds in an at least subband PMI, and each subband PMI is each subband PMI instruction Index of the code word in one subset of the codebook subset or the codebook subset.

49. the terminal device according to any one of claim 41 to 47, which is characterized in that occupied with the terminal device Corresponding at least one subband PMI of at least one subband in reference subband PMI, for it is described with reference to subband PMI indicate Index of the code word in the codebook subset,

50. the terminal device according to any one of claim 33 to 49, which is characterized in that the determination unit is specifically used In:

According to first configuration information, the size in the PMI information domain is determined；

According to the size in the PMI information domain, the size for carrying the Downlink Control Information DCI in the PMI information domain is determined.

51. a kind of network equipment, which is characterized in that the network equipment includes:

Receiving unit, for the coherent transmission ability for the terminal device that receiving terminal apparatus reports, the coherent transmission energy Power indicates the ability that the terminal device supports coherent transmission, partially coherent transmission or incoherent transmission；

Determination unit, for determining the terminal device in mesh according to the received coherent transmission ability of the receiving unit It marks and transmits codebook subset used in upstream data on subband；

The determination unit is also used to, and in the codebook subset, determines that the terminal device transmits on the target sub-band Pre-coding matrix used in the upstream data；

Indicating unit, for the PMI information by being carried in pre-coding matrix instruction PMI information domain, Xiang Suoshu terminal device Indicate the pre-coding matrix.

52. the network equipment according to claim 51, which is characterized in that the network equipment further includes transmission unit, institute Transmission unit is stated to be used for:

Instruction information is sent to the terminal device, the instruction information is used to indicate the first configuration information, first configuration Information determines that the codebook subset, first configuration information include coherent transmission configuration or code book for the terminal device Collection constraint configuration.

53. the network equipment according to claim 52, which is characterized in that coherent transmission configuration include coherent transmission, At least one of partially coherent transmission and incoherent transmission, the codebook subset constraint configuration include the code of coherent transmission code word At least one of this subset, the codebook subset of partially coherent transmitted codewords and codebook subset of incoherent transmitted codewords.

54. the network equipment according to any one of claim 51 to 53, which is characterized in that different codebook subset constraints The corresponding different coherent transmission ability of configuration.

55. the network equipment according to any one of claim 51 to 54, which is characterized in that the coherent transmission configuration is only Including incoherent transmission or the codebook subset constraint configuration only include incoherent transmitted codewords codebook subset when, it is described PMI information only includes broadband PMI,

56. the network equipment according to claim 55, which is characterized in that the indicating unit is specifically used for:

By the broadband PMI, Xiang Suoshu terminal device indicates the pre-coding matrix.

57. the network equipment according to any one of claim 51 to 54, which is characterized in that the coherent transmission configuration packet When including the codebook subset of coherent transmission or codebook subset constraint configuration including coherent transmission code word, the PMI information packet At least one subband PMI corresponding at least one subband that the terminal device occupies is included,

58. the network equipment according to claim 57, which is characterized in that the indicating unit is specifically used for:

The pre-coding matrix is indicated by target sub-band PMI, Xiang Suoshu terminal device corresponding with the target sub-band.

59. the network equipment according to any one of claim 51 to 54, which is characterized in that the coherent transmission configuration packet It is described when including the codebook subset of partially coherent transmission or codebook subset constraint configuration including partially coherent transmitted codewords PMI information includes at least one subband PMI corresponding at least one subband of terminal device occupancy,

60. the network equipment according to claim 59, which is characterized in that the indicating unit is specifically used for:

61. the network equipment according to any one of claim 51 to 60, which is characterized in that the determination unit is also used In:

In a subset of the codebook subset, the pre-coding matrix is determined, wherein value is 0 in one subset Element position it is all the same.

62. the network equipment according to claim 61, which is characterized in that the PMI information domain, which also carries, to be used to indicate The instruction information of one subset in the codebook subset.

63. the network equipment according to any one of claim 57 to 62, which is characterized in that occupied in the terminal device At least one subband respectively correspond in an at least subband PMI, each subband PMI is the code of each subband PMI instruction Index of the word in one subset of the codebook subset or the codebook subset.

64. the network equipment according to any one of claim 57 to 62, which is characterized in that occupied with the terminal device Corresponding at least one subband PMI of at least one subband in reference subband PMI, for it is described with reference to subband PMI indicate Index of the code word in the codebook subset,