CN107612599A

CN107612599A - A kind of method, base station and user equipment for indicating frequency selectivity precoding information

Info

Publication number: CN107612599A
Application number: CN201710664291.8A
Authority: CN
Inventors: 马骥超
Original assignee: Shenzhen Jinli Communication Equipment Co Ltd
Current assignee: Shenzhen Jinli Communication Equipment Co Ltd
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2018-01-19

Abstract

The embodiment of the invention discloses a kind of method, base station and user equipment for indicating frequency selectivity precoding information, wherein this method includes：It is determined that the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and determine the second bit number shared by the TPMI of each sub-band；The number of sub-band is determined according to system bandwidth value, the first bit number and the second bit number；TPMI signalings are generated according to precoding matrix information corresponding to the first bit number, the second bit number and each sub-band；The TPMI signalings are sent to user equipment.The TPMI signalings for the fixed number of bits that the embodiment of the present invention passes through generation, the blind Detecting difficulty of Physical Downlink Control Channel can be reduced.

Description

A kind of method, base station and user equipment for indicating frequency selectivity precoding information

Technical field

The present invention relates to communication technical field, more particularly to a kind of method for indicating frequency selectivity precoding information, base Stand and user equipment.

Background technology

It is up both to have supported traditional to answer based on Fourier's spread-spectrum orthogonal frequency division in new radio (New Radio) system With (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, DFT-S-OFDM) waveform transmission, also support and downlink transfer identical be based on cyclic prefix orthogonal frequency It is multiplexed the biography of (Cyclic PrefixOrthogonal Frequency Division Multiplexing, CP-OFDM) waveform It is defeated.

Up-link based on CP-OFDM waveforms enters to have more (Uplink Multiple-Input Multiple- more Output, UL MIMO) in transmission mechanism, when being transmitted based on code book, if the number of transmission antenna is more than 2, frequency can be supported Selective precoding.In order to support the frequency selectivity precoding based on code book, it is necessary to redefine a set of effective transmitting in advance Encoder matrix indicates (Transmitted Precoding Matrix Indicator, TPMI) mechanism, so that institute is transmitted in base station The precoding information needed gives user equipment (User Equipment, UE).

Third generation partner program (The 3rd Generation Partnership Project, 3GPP) is gone back at present Not to UL MIMO transmissions, how TPMI, which carries out instruction, under the conditions of frequency selectivity precoding a clear and definite scheme.Such as If fruit UL MIMO support frequency selectivity precoding, there is following scheme to be available for begging for for sub-band (subband) TPMI signalings By research：

UE sub-band TPMI is transmitted to by Downlink Control Information (Downlink Control Information, DCI) Just for real in present physical down control channel (Physical Downlink Control Channel, PUSCH) transmission Distribute to the resource block (Resource Block, RB) of the UE in border.

However, if carrying out TPMI instructions according to the sub-band number of distribution, then mean the bit that TPMI takes Digit can change with the situation of resource allocation, and this, which can increase, carries out Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) blind Detecting difficulty.

The content of the invention

The embodiment of the present invention provides a kind of method, base station and user equipment for indicating frequency selectivity precoding information, can Reduce the difficulty of physical downlink control channel PDCCH blind Detecting.

In a first aspect, the embodiments of the invention provide a kind of method for indicating frequency selectivity precoding information, this method Including：

It is determined that the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and determine each sub-band The second bit number shared by TPMI；

The number of sub-band is determined according to system bandwidth value, first bit number and second bit number；

According to pre-coding matrix letter corresponding to first bit number, second bit number and each sub-band Breath generation TPMI signalings；The TPMI signalings are sent to user equipment.

Second aspect, the embodiments of the invention provide a kind of method for indicating frequency selectivity precoding information, this method Including：

Receive the transmitting pre-coding matrix instruction TPMI signalings that base station is sent；

Prelisting for each sub-band is determined according to first bit number, second bit number and the TPMI signalings Code matrix information.

The third aspect, the embodiments of the invention provide a kind of base station, the base station includes being used to perform above-mentioned first aspect The unit of method.

Fourth aspect, the embodiments of the invention provide a kind of user equipment, the user equipment includes being used to perform above-mentioned the The unit of the method for two aspects.

5th aspect, the embodiments of the invention provide another base station, including processor, input equipment, output equipment and Memory, the processor, input equipment, output equipment and memory are connected with each other, wherein, the memory is used to store branch The computer program that base station performs the above method is held, the computer program includes programmed instruction, and the processor is configured to use In calling described program instruction, the method for performing above-mentioned first aspect.

6th aspect, the embodiments of the invention provide another user equipment, including processor, input equipment, output are set Standby and memory, the processor, input equipment, output equipment and memory are connected with each other, wherein, the memory is used to deposit Storage supports user equipment to perform the computer program of the above method, and the computer program includes programmed instruction, the processor It is arranged to call described program instruction, the method for performing above-mentioned second aspect.

7th aspect, the embodiments of the invention provide a kind of computer-readable recording medium, the computer-readable storage medium Computer program is stored with, the computer program includes programmed instruction, and described program instruction makes institute when being executed by a processor The method for stating the above-mentioned first aspect of computing device.

Eighth aspect, the embodiments of the invention provide a kind of computer-readable recording medium, the computer-readable storage medium Computer program is stored with, the computer program includes programmed instruction, and described program instruction makes institute when being executed by a processor The method for stating the above-mentioned second aspect of computing device.

The embodiment of the present invention launches the first bit number shared by pre-coding matrix instruction TPMI signalings by determining, and It is determined that the second bit number shared by the TPMI of each sub-band；According to system bandwidth value, first bit number and described Second bit number determines the number of sub-band；According to first bit number, second bit number and the frequency per height Precoding matrix information generation TPMI signalings corresponding to band；The TPMI signalings are sent to user equipment.Due to base station generation The TPMI signalings of fixed number of bits, the bit number shared by TPMI signalings will not change, energy with the change of assignable bandwidth Enough reduce the blind Detecting difficulty of physical downlink control channel PDCCH.

Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, it is required in being described below to embodiment to use Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of exemplary flow of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention Figure；

Fig. 2 is the specific of S103 in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention Implementation process figure；

Fig. 3 is the tool of S1032 in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention Body implementation process figure；

Fig. 4 is the schematic flow diagram for the method that another embodiment of the present invention provides instruction frequency selectivity precoding information；

Fig. 5 is a kind of schematic diagram of the physical resource of schedulable for user equipment distribution provided in an embodiment of the present invention；

Fig. 6 is a kind of signal of the physical resource for schedulable for user equipment distribution that another embodiment of the present invention provides Figure；

Fig. 7 is a kind of signal of the physical resource for schedulable for user equipment distribution that yet another embodiment of the invention provides Figure；

Fig. 8 is a kind of signal stream of the method for instruction frequency selectivity precoding information that yet another embodiment of the invention provides Cheng Tu；

Fig. 9 is the specific of S304 in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention Implementation process figure；

Figure 10 is a kind of signal of the method for instruction frequency selectivity precoding information that further embodiment of this invention provides Flow chart；

Figure 11 is the tool of S406 in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention Body implementation process figure；

Figure 12 is the tool of S4061 in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention Body implementation process figure；

Figure 13 is a kind of schematic block diagram of base station provided in an embodiment of the present invention；

Figure 14 is a kind of schematic block diagram of terminal provided in an embodiment of the present invention；

Figure 15 is a kind of schematic block diagram for base station that another embodiment of the present invention provides；

Figure 16 is a kind of schematic block diagram for terminal that another embodiment of the present invention provides.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to the scope of protection of the invention.

It should be appreciated that ought be in this specification and in the appended claims in use, term " comprising " and "comprising" instruction Described feature, entirety, step, operation, the presence of element and/or component, but it is not precluded from one or more of the other feature, whole Body, step, operation, element, component and/or its presence or addition for gathering.

It is also understood that the term used in this description of the invention is merely for the sake of the mesh for describing specific embodiment And be not intended to limit the present invention.As used in description of the invention and appended claims, unless on Other situations are hereafter clearly indicated, otherwise " one " of singulative, "one" and "the" are intended to include plural form.

It will be further appreciated that the term "and/or" used in description of the invention and appended claims is Refer to any combinations of one or more of the associated item listed and be possible to combine, and including these combinations.

As used in this specification and in the appended claims, term " if " can be according to context quilt Be construed to " when ... " or " once " or " in response to determining " or " in response to detecting ".Similarly, phrase " if it is determined that " or " if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".

It is that the embodiment of the present invention provides a kind of signal stream for the method for indicating frequency selectivity precoding information referring to Fig. 1 Cheng Tu.The executive agent of the present embodiment is base station, for indicating that the frequency selectivity precoding of up-link (Uplink, UL) is believed Breath.Indicate that the method for frequency selectivity precoding information may include as shown in the figure：

S101：It is determined that the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and determine per height The second bit number shared by the TPMI of frequency band.

Base station can select detecting the frequency for being used to obtain UL that user equipment (User Equipment, UE) is sent Property precoding information request when, be identified as needing indicating up-link UL frequency selectivity precoding information；Also may be used base station To be the frequency selectivity precoding information for being identified as needing instruction up-link UL when detecting that UE accesses the base station, but This is not limited to, is not limited herein.

Base station can pass through the transmitting pre-coding matrix instruction (Transmitted of default support frequency selectivity Precoding Matrix Indicator, TPMI) Downlink Control Information (Downlink Control Information, DCI form (Format)) obtains the first bit number shared by TPMI signalings.The first bit number shared by TPMI signalings is Refer to the number of the bit shared by TPMI signalings.

Base station can also be according to shared by system bandwidth value with TPMI signalings bit (bit) number between it is default it is corresponding pass System, obtains the first bit number shared by TPMI signalings corresponding to current system bandwidth value.

Current system bandwidth value SysBW is bigger, the first bit number BIT shared by TPMI signalings_TPMIAlso it is bigger, currently System bandwidth value SysBW and TPMI signalings shared by the first bit number BIT_TPMICan be proportional relationship or Non- proportional relationship, is not limited herein.

In the present embodiment, with the first bit number BIT shared by TPMI signalings_TPMIWith current system bandwidth value Illustrated exemplified by SysBW is directly proportional, its relation is as follows：

BIT_TPMI=SysBW × 1bit/MHz (1)

In formula (1), system bandwidth value SysBW unit is megahertz (MHz).

The first bit number shared by TPMI signalings that base station determines refers to be used to indicate frequency selectivity precoding information Shared bit number, do not include as shared in being used for CRC detection (Cyclic Redundancy Check, CRC) Bit number.

Base station according to the UE disposal ability information reported and channel condition information (channel state information, CSI), the number of the layer of Physical Uplink Shared Channel (Physical UplinkShared Channel, PUSCH) transmission is determined, And the number of antenna port used in PUSCH transmission is obtained, passed so as to the number and PUSCH of the layer according to PUSCH transmission The number of antenna port determines the codebook set of PUSCH transmission used in defeated.

Wherein, PUSCH available resources are predefined by base station, are then distributed in a manner according to UE business demand Used to UE.The number of the layer of PUSCH transmission is less than or equal to the number of antenna port used in PUSCH transmission.One code This set (code book in other words) includes multiple pre-coding matrixes, is indicated by the code book index in codebook set corresponding Pre-coding matrix.

Because the number of number of codewords and transmission antenna port is inconsistent, it is necessary to which streams of code words to be mapped to different transmission days On line, it is therefore desirable to use layer and precoding.Layer mapping is actually " mapping code word to transmission antenna " process with precoding The subprocess of two.Layer mapping is first according to certain rule and streams of code words is remapped into multiple layers (new data flow), in advance Coding is mapped the data on different antenna ports again, and resource impact is carried out on each antenna port, generates orthogonal frequency Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol is simultaneously launched.Wherein, code word refers to Business Stream from upper strata carries out the data after channel coding.Different code words distinguishes different data flows, and the purpose is to logical Cross MIMO and send multichannel data, realize spatial reuse.

Antenna port refers to the logic port for transmission, and the one-to-one relationship in definition is not present with physical antenna.My god Line end mouth is defined by the reference signal for the antenna.As much as to say, the reference signal used is the name of a certain logic of class port Word.

Base station determines each sub-band it is determined that after PUSCH codebook set according to PUSCH codebook set The second bit number shared by subband TPMI.For example, when the pre-coding matrix number that PUSCH codebook set includes is small When equal to 8, then the second bit number shared by the TPMI of each sub-band is 3, now, 3 bit binary numbers most multipotency Represent 2³=8 code book indexes；When the number for the pre-coding matrix that PUSCH codebook set includes is more than 8 and less than or equal to 16 When, then the second bit number shared by the TPMI of each sub-band is 4, and now, 4 bit binary numbers most multipotency represents 2⁴= 16 code book indexes.

S102：The number of sub-band is determined according to system bandwidth value, first bit number and second bit number.

The second ratio shared by the TPMI of the first bit number and each sub-band of the base station according to shared by TPMI signalings Special number, it is determined that the number for the sub-band that current system bandwidth value can divide, the number of sub-band is shared by TPMI signalings The first bit number and each sub-band TPMI shared by the second bit number business, calculation formula is as follows：

Wherein, formula (2) represents Num_subbandRound downwards, remaining bit can leave unused or for school in TPMI signalings Test, be not limited herein.Num_subbandRepresent the number of sub-band being divided, BIT_TPMIRepresent shared by TPMI signalings First bit number, BIT_subbandRepresent the second bit number shared by the TPMI of each sub-band.

Base station it is determined that the sub-band that can be divided number when, according to current system bandwidth value be each sub-band configure Frequency physical resource, it is determined that each self-corresponding physical resource Information of each sub-band.Each each self-corresponding physics money of sub-band Source information can be including the bandwidth value that each sub-band is individually assigned to and the frequency domain position of bandwidth.System bandwidth value is system It is pre-configured with, base station and UE are known.

S103：According to precoding corresponding to first bit number, second bit number and each sub-band Matrix information generates TPMI signalings.

Base station is accounted for precoding matrix information corresponding to each sub-band by preset format generation TPMI signalings, TPMI signalings With the first bit number, each each self-corresponding TPMI of sub-band takes the second bit number.Precoding matrix information can be prelisted The mark or index information of code matrix.The index information is code book index.

Preset format is pre-defined form, for indicating the TPMI of each sub-band of encapsulation.Base station and terminal are equal Know preset format.

Alternatively, in one embodiment, as shown in Fig. 2 S103 can specifically include S1031~S1035.Fig. 2 is this S103 specific implementation flow chart in a kind of method for instruction frequency selectivity precoding information that inventive embodiments provide, specifically It is as follows：

S1031：Receive the uplink reference signals of user equipment to report.

Base station receive reported by user equipment UE uplink reference signals (Sounding Reference Signal,

SRS), the precoding matrix information and according to corresponding to the uplink reference signals got determine each sub-band.This UE number is not limited.

S1032：It is each self-corresponding that each sub-band is configured according to the number of the sub-band and the system bandwidth value Physical resource Information.

Base station is according to the number of the sub-band determined in S102, and the system bandwidth value known configures each sub-band Each self-corresponding physical resource Information.

For example, it is assumed that system bandwidth value is 40MHz, the first bit number shared by TPMI signalings is 40bit, the frequency per height The second bit number shared by the TPMI of band is 4bit, then 10 sub-bands can be uniformly cut into according to formula (2), so as to To calculate a width of 4MHz of the band of each sub-band.

Further, the efficiency of each each self-corresponding physical resource Information of sub-band is configured in order to improve, in another reality Apply in mode, S1032 can be specially：Determined according to the number of the system bandwidth value and the sub-band described per height The number of resource block shared by frequency band.

System bandwidth value is that minimum particle size is that each sub-band draws money with resource block (Resource Block, RB) by base station Source block.For example, (in the case of 15K carrier waves interval, 1 RB is corresponding for corresponding 12 continuous carrier waves on frequency domain by RB 180KHz), (corresponding half of the subframe of 1 time slot, the time span of 1 time slot is 0.5 milli to a corresponding slot s lot in time domain Second ms) resource.The formula for calculating the number of the resource block shared by each sub-band is as follows：

Wherein, formula (3) represents the number RBNum of resource block_subbandRound downwards, RBNum_SysBWRepresent system bandwidth value pair The number for the resource block answered, Num_subbandRepresent the number of sub-band.

RB number corresponding to two neighboring sub-band can be with identical, can also be different, is not limited herein.

Further, in another embodiment, it is as shown in figure 3, described according to the system bandwidth value and the son The number of frequency band determines that the number of the resource block shared by each sub-band can include S10321~S10323.Fig. 3 is S1032 specific implementation flow chart in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention, It is specific as follows：

S10321：Calculate the number of the number of assignable resource block corresponding to the system bandwidth value and the sub-band Between remainder.

S10322：If the remainder is zero, the number of the resource block shared by each sub-band can divide to be described The business of the number for the resource block matched somebody with somebody and the number of the sub-band.

For example, it is assumed that system bandwidth value is 40MHz, and corresponding 200 RB of 40MHz, the first bit shared by TPMI signalings Number is 40bit, and the second bit number shared by the TPMI of each sub-band is 4bit, then can uniform cutting according to formula (2) Into 10 sub-bands.Because the business between 200 and 10 is 420, remainder zero, each height frequency can be calculated according to formula (3) The a width of 4MHz of band of band, corresponding 20 RB of each sub-band.

S10323：If the remainder is more than zero, the number of the resource block shared by the first sub-band and the second sub-band The difference of the number of shared resource block is equal to the remainder；Wherein, second sub-band be except first sub-band it Outer any sub-band.

When the remainder corresponding to system bandwidth value between the number of assignable resource block and the number of sub-band is more than zero When, base station is that each sub-band evenly distributes resource block, and the number for the resource block that each subband allocation arrives is assignable money Business between the number of source block and the number of sub-band, and by it is remaining go out RB by pre-defined rule be incorporated into one or at least two son frequency Band, the sub-band for being incorporated into remainder resource block is the second sub-band, and all sub-bands in addition to the second sub-band are first Sub-band, the number of each self-corresponding resource block of the first sub-band are identical.

For example, when base station by it is remaining go out RB be incorporated into a sub-band by pre-defined rule when, the second sub-band can be by being Last sub-band or first sub-band that regiment commander's width values mark off, it can also be the son frequency except the first both ends Any sub-band between band.

Assuming that system bandwidth value is corresponding 200 RB, the first bit number shared by TPMI signalings is 44bit, per height The second bit number shared by the TPMI of frequency band is 4bit, then 11 sub-bands can be cut into according to formula (2), according to formula (3) corresponding 18 RB of the first sub-band, corresponding 20 RB of the second sub-band can be calculated.

Base station can be tried one's best uniform principle according to the RB of each sub-band number, and remainder RB is incorporated into difference respectively Sub-band, the so RB of some sub-band number is RBNum_subband, the RB of another part sub-band number is RBNum_subband+1。

Assuming that system bandwidth value is corresponding 200 RB, the first bit number shared by TPMI signalings is 44bit, per height The second bit number shared by the TPMI of frequency band is 4bit, then 11 sub-bands can be cut into according to formula (2), according to formula (3) number that can calculate the resource block that each subband allocation arrives is the number of assignable resource block and the number of sub-band Business between mesh is 18, remainder 2.Number according to the RB of each sub-band is tried one's best knowable to uniform principle, the first sub-band Corresponding 18 RB, corresponding 19 RB of the second sub-band, and the number of the first sub-band is 9, the number of the second sub-band is 2 It is individual.

Now, the second sub-band can be the last N number of sub-band or top n marked off by system bandwidth value Sub-band, N number of sub-band between the sub-band except the first both ends is can also be, can specifically be set according to actual conditions, herein It is not limited.

S1033：Each corresponded to according to the uplink reference signals of the user equipment to report and each sub-band Physical resource Information determine the uplink signal-channel quality information of each sub-band.

The uplink reference signals that base station reports according to UE carry out up channel measurement, according to measurement result and the frequency per height The uplink signal-channel quality information of each sub-band is determined with each self-corresponding physical resource Information.Wherein, the SRS that UE is reported is used for Uplink signal-channel quality measures.Uplink signal-channel quality information is used for the quality for representing uplink signal-channel quality.

S1034：The precoding according to corresponding to the channel quality information of each sub-band determines each sub-band Matrix information.

Base station obtains the precoding to match with the channel quality information of each sub-band respectively from default codebook set Matrix, and determine the mark or index information of pre-coding matrix matched with the channel quality of each sub-band.Pre-coding matrix Information can be the mark or index information of pre-coding matrix.Precoding matrix information corresponding to each sub-band is used to obtain often Pre-coding matrix corresponding to individual sub-band.

Further, base station is from default codebook set, obtains respectively with the channel quality information of each sub-band most The pre-coding matrix matched somebody with somebody, and determine the mark or index information of the pre-coding matrix most matched.

S1035：It is each self-corresponding pre- according to first bit number, second bit number and each sub-band Encoder matrix information generates TPMI signalings.

Base station can be directed to each subframe generation TPMI signalings, can also be directed at least two subframes generation TPMI signalings, It is not limited herein.

When base station is at least two subframes generation TPMI signalings, the TPMI signalings are effective at least two subframe.

S104：The TPMI signalings are sent to user equipment.

TPMI signaling of the base station to the UE transmission generations for needing to obtain TPMI signalings.

Further, S104 can be specially：By the default update cycle TPMI signalings are sent to user equipment.

Base station is sent the TPMI signalings of generation by the default update cycle to the UE for sending SRS, so that UE is being received During TPMI signalings, precoding matrix information corresponding to each sub-band of TPMI signalings can be obtained, obtains what UE was currently allocated Pre-coding matrix corresponding to physical resource, precoding is carried out so as to exchange integral symbol according to the pre-coding matrix got.

Specifically, base station can be carried by Downlink Control Information (Downlink Control Information, DCI) The TPMI signalings of generation, so as to send the TPMI encapsulated to user equipment by the default update cycle by Downlink Control Information Signaling.

Wherein, the default update cycle, the default update cycle corresponded to the time span of N number of subframe, N using subframe as granularity For the integer more than or equal to 1.The time span of 1 subframe is 1 millisecond (ms), and each subframe includes 2 time slots (Slot), i.e., The time span of each time slot is 0.5ms.The default update cycle can be it is changeless or adjustable, this Place is not limited.

Because UE regularly or sporadically can send uplink SRS signal to base station, base station is detecting new SRS signal When, S103 is returned to, to generate new TPMI signalings.Timing sends uplink SRS signal to base station and refers to UE with predetermined period to base Stand and send uplink SRS signal, not timing sends uplink SRS signal to base station and refers to that aperiodicity sends uplink SRS letter to base station Number.

Such scheme, base station determine the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and really The second bit number shared by the TPMI of fixed each sub-band；According to system bandwidth value, first bit number and described Two bit numbers determine the number of sub-band；According to first bit number, second bit number and each sub-band Corresponding precoding matrix information generates TPMI signalings；The TPMI signalings are sent to user equipment.Due to consolidating for base station generation Determine the TPMI signalings of bit number, the bit number shared by TPMI signalings will not change with the change of assignable bandwidth, can Reduce the blind Detecting difficulty of physical downlink control channel PDCCH.

The default update cycle sends TPMI signalings to user equipment, even if so as to ensure to divide within the default update cycle The bandwidth matched somebody with somebody changes, and the TPMI signalings still can be used for the uplink of newly assigned bandwidth, so as to reduce downlink The expense of DL control signalings.

Base station is according to the quotient and the remainder between system bandwidth value and the number of sub-band, it is determined that shared by each sub-band Resource block number, can each self-corresponding physical resource Information of each sub-band of rapid configuration, improve allocative efficiency.

Referring to Fig. 4, Fig. 4 is showing for the method for another embodiment of the present invention offer instruction frequency selectivity precoding information Meaning flow chart.The difference of another embodiment and a upper embodiment is also to include S205, S201~S204 and upper one implementation S101~S104 in example is identical, referring specifically to the associated description of S101~S104 in a upper embodiment, does not repeat herein.

S205：The physical resource of schedulable is distributed for the user equipment, and will be described adjustable by down control channel The information of the physical resource of degree is sent to the user equipment.

Base station take minimum particle size as UE distribution schedulable of subframe when detecting that UE has the demand for sending data Physical resource, and sent the information of the physical resource distributed for it to UE by down control channel.That is, base station is sent to UE The cycle of the information of physical resource is the time span (1ms) of 1 subframe.

When the default update cycle of TPMI information is time span corresponding to 1 subframe, base station can pass through descending control Channel sends the information of physical resource corresponding to TPMI signalings and the UE to UE simultaneously.

When the default update cycle of TPMI information is time span corresponding to N number of subframe, during and N >=2, base station passes through descending Control channel sends the information and first TPMI signaling of the physical resource distributed for UE first subframe to UE simultaneously, and The information and TPMI signalings of the physical resource for the distribution for being UE every the time span transmission simultaneously of N number of subframe.

The information of the physical resource of schedulable can include the mark of physical resource, can also include the number of physical resource Mesh.

Physical resource for the schedulable of UE distribution can be continuous or discrete on frequency domain.

For example, the physical resource for the schedulable of UE distribution can include what two or more adjacent sub-bands included Continuous physical resource, the continuous or discrete physical resource that two non-conterminous sub-bands include can also be included.

The physical resource of schedulable corresponding to two neighboring subframe can be with identical, can also be different.That is, for different sons Frame time length, the continuous physical resource of frequency of the schedulable of same UE distribution can be with identical, can also different (difference can be with It is entirely different or part is different).

Also referring to Fig. 5~Fig. 7, Fig. 5 is a kind of schedulable for user equipment distribution provided in an embodiment of the present invention Physical resource schematic diagram；Fig. 6 is a kind of thing for schedulable for user equipment distribution that another embodiment of the present invention provides Manage the schematic diagram of resource；Fig. 7 is a kind of physics money for schedulable for user equipment distribution that yet another embodiment of the invention provides The schematic diagram in source.

Illustrated in Fig. 5~Fig. 7 so that system bandwidth is divided into 10 sub-bands as an example.

As shown in figure 5, in the time span of n (n is positive integer) individual subframe, the physics for the schedulable of the first UE distribution provides Source is the continuous physical resource of frequency, and is immobilized.First UE is in the time span of the 1~n subframe, the frequency of schedulable Continuously physical resource is：The part physical resource adjacent with the 8th sub-band, the 8th son in physical resource corresponding to 7th sub-band The part physical adjacent with the 8th sub-band money in physical resource corresponding to all physical resources corresponding to frequency band and the 9th frequency band Source.

As shown in fig. 6, it is the not continuous physical resource of frequency, and fixed for the physical resource of the schedulable of the first UE distribution It is constant.In the time span of the 1~n subframe, the continuous physical resource of frequency of schedulable is first UE：2nd sub-band pair The corresponding all physical resources of the part physical resource adjacent with the 3rd sub-band, the 3rd sub-band and in the physical resource answered All physical resources corresponding to 9 frequency bands.

As shown in fig. 7, for the time span of n+i subframe, the continuous physical resource of frequency for the first UE distribution is Dynamic change, n, i are the integer more than 1.The continuous physical resource of the frequency of schedulable corresponding to n-th subframe is the 7th son All physical resources corresponding to all physical resources corresponding to frequency band and the 8th sub-band；Schedulable corresponding to n-th+i subframes The continuous physical resource of frequency is all physics moneys corresponding to all physical resources corresponding to the 4th sub-band and the 5th sub-band Source.

When base station with the default update cycle to user equipment transmission TPMI signalings, and distributed within the default update cycle When the physical resource of UE schedulable changes, UE is enabled to determine new resource using recently received TPMI signalings Precoding information used in the lower current each sub-band of scheduling, TPMI letters are sent because base station need not be directed to each subframe Order, and TPMI signalings are to be transmitted by DL control information to UE, when the default update cycle being more than the time span of 1 subframe, The expense of downlink DL control signalings can effectively be reduced.

Referring to Fig. 8, Fig. 8 is that yet another embodiment of the invention provides a kind of method for indicating frequency selectivity precoding information Schematic flow diagram.The executive agent of the present embodiment is user equipment (UE), for indicating that the frequency of up-link (Uplink, UL) is selected Selecting property precoding information.UE can be the intelligent terminals such as mobile phone, tablet personal computer.Frequency selectivity precoding letter is indicated as shown in the figure The method of breath may include：

S301：It is determined that the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and determine per height The second bit number shared by the TPMI of frequency band.

UE can pass through the transmitting pre-coding matrix instruction (Transmitted of default support frequency selectivity Precoding Matrix Indicator, TPMI) Downlink Control Information (Downlink Control Information, DCI form (Format)) obtains the first bit number shared by TPMI signalings.The first bit number shared by TPMI signalings is Refer to the number of the bit shared by TPMI signalings.

UE can also be according to shared by system bandwidth value with TPMI signalings bit (bit) number between it is default it is corresponding pass System, obtains the first bit number shared by TPMI signalings corresponding to current system bandwidth value.

BIT_TPMI=SysBW × 1bit/MHz (1)

In formula (1), system bandwidth value SysBW unit is megahertz (MHz).

The first bit number shared by TPMI signalings that UE is determined refers to be used to indicate frequency selectivity precoding information institute The bit number of occupancy, do not include as shared in being used for CRC detection (Cyclic Redundancy Check, CRC) Bit number.

UE according to itself disposal ability information and channel condition information (channel state information, CSI), the number of the layer of Physical Uplink Shared Channel (Physical UplinkShared Channel, PUSCH) transmission is determined, And the number of antenna port used in PUSCH transmission is obtained, passed so as to the number and PUSCH of the layer according to PUSCH transmission The number of antenna port determines the codebook set of PUSCH transmission used in defeated.

UE determines each sub-band subband it is determined that after PUSCH codebook set according to PUSCH codebook set TPMI shared by the second bit number.For example, when the pre-coding matrix number that PUSCH codebook set includes is less than or equal to 8 When, then the second bit number shared by the TPMI of each sub-band is 3, and now, 3 bit binary numbers most multipotency represents 2³= 8 code book indexes；When the number for the pre-coding matrix that PUSCH codebook set includes is more than 8 and is less than or equal to 16, then every The second bit number shared by the TPMI of individual sub-band is 4, and now, 4 bit binary numbers most multipotency represents 2⁴=16 code books Index.

S302：The number of sub-band is determined according to system bandwidth value, first bit number and second bit number.

The second bit shared by the TPMI of the first bit numbers and each sub-band of the UE according to shared by TPMI signalings Number, it is determined that the number for the sub-band that current system bandwidth value can divide, the number of sub-band is shared by TPMI signalings The business of first bit number and the second bit number shared by the TPMI of each sub-band, calculation formula are as follows：

UE it is determined that the sub-band that can be divided number when, according to current system bandwidth value be each sub-band configuration frequency Rate physical resource, it is determined that each self-corresponding physical resource Information of each sub-band.Each self-corresponding physical resource of each sub-band Information can be including the bandwidth value that each sub-band is individually assigned to and the frequency domain position of bandwidth.System bandwidth value is that system is pre- First configure, base station and UE are known.

S303：Receive the transmitting pre-coding matrix instruction TPMI signalings that base station is sent.

S304：Each sub-band is determined according to first bit number, second bit number and the TPMI signalings Precoding matrix information.

UE parses TPMI signalings according to the preset format for the generation TPMI signalings made an appointment, and obtains a character string, the word Symbol string is used for the precoding matrix information for representing all sub-bands.It is first bit numbers of the UE according to shared by TPMI signalings, each The character string that the second bit number and parsing shared by the TPMI of sub-band obtain, it is determined that the pre-coding matrix of each sub-band Information.

For example, it is assumed that character string from left to right contains the 1st sub-band to the n-th sub-band pair successively corresponding to TPMI signalings The code book index for the pre-coding matrix answered, the bit number shared by the TPMI of the first sub-band are 3, the TPMI institutes of the second sub-band The bit number of occupancy is 3, then, pre-coding matrixes of the UE by the character recognition of preceding 3 bit in the character string for the first sub-band Information, by the precoding matrix information that character recognition corresponding to the 4th~5 bit is the second sub-band.

Alternatively, in one embodiment, S304 can also include S3041~S3042.It is also referring to Fig. 9, Fig. 9 S304 specific implementation flow chart, tool in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention Body is as follows：

S3041：Obtain recently received TPMI signalings.

The TPMI signalings received can be that base station is sent by the default update cycle；Wherein, TPMI signalings include institute State precoding matrix information corresponding to each sub-band.

The default update cycle, the default update cycle corresponded to the time span of N number of subframe using subframe as granularity, and N is big In or equal to 1 integer.The time span of 1 subframe is 1ms, and each subframe includes 2 time slots (Slot), i.e., each time slot Time span is 0.5ms.The default update cycle can be changeless or adjustable, not be limited herein. Precoding matrix information can include the mark or index information of pre-coding matrix, and precoding matrix information is used for user equipment (UE) Obtain pre-coding matrix corresponding to the physical resource of schedulable.

Because the default update cycle of TPMI signalings is time span corresponding to N number of subframe, as N=1, in time domain TPMI corresponding to each subframe is different；As N >=2, the TPMI signalings phase corresponding to the time span of N number of subframe in time domain Together.

The physical resource that two neighboring subframe is assigned to can be with identical, can also be different；What two neighboring subframe was assigned to Sub-band corresponding to physical resource can be with identical, can also be different.Within the same default update cycle, the distribution of different subframes During to different physical resources, UE can according to corresponding to same TPMI signalings determine the physical resource that is currently assigned to sub-band Corresponding precoding matrix information.

S3042：It is true according to first bit number, second bit number and the recently received TPMI signalings The precoding matrix information of fixed each sub-band.

Such scheme, because the bit number of the UE TPMI signalings received is fixed, the bit number shared by TPMI signalings It will not change with the change of assignable bandwidth, the blind Detecting difficulty of physical downlink control channel PDCCH can be reduced.

UE determines the precoding matrix information of each sub-band according to recently received TPMI signalings, even if assignable Bandwidth changes, and the TPMI signalings still can be used for the uplink of newly assigned bandwidth, so as to reduce downlink DL controls The expense of signaling processed.

Referring to Fig. 10, Figure 10 is a kind of instruction frequency selectivity precoding information that further embodiment of this invention provides The schematic flow diagram of method.The present embodiment and the difference of a upper embodiment are also to include S405~S407.Wherein, S401 ~S404 is identical with S301~S304 in a upper embodiment, is retouched referring specifically to the correlation of S301~S304 in a upper embodiment State, this is not repeated.

S405：To base station reporting uplink reference signal.

Uplink reference signals are used for base station and carry out up channel measurement according to uplink reference signals, so that it is determined that the frequency per height The uplink signal-channel quality information of band, and pre-coding matrix corresponding to each sub-band can be determined according to uplink signal-channel quality information Information.Uplink signal-channel quality information is used for the quality for representing uplink signal-channel quality.

S405 is performed before S403, and S405 and S401~S402 is sequentially performed in no particular order.

S406：According to physics corresponding to precoding matrix information corresponding to each sub-band, each sub-band The physical resource of resource information and current schedulable, obtain pre-coding matrix corresponding to each sub-band being currently assigned to.

UE physical resource Informations according to corresponding to the physical resource Information of current schedulable and each sub-band, it is true respectively Sub-band belonging to the physical resource of settled preceding schedulable, so that it is determined that each sub-band being currently assigned to, and according to each Precoding matrix information corresponding to sub-band, obtain each self-corresponding pre-coding matrix of each sub-band being currently assigned to.When The physical resource Information of preceding schedulable can be RB mark, and the physical resource Information of current schedulable is used to determine currently to distribute The sub-band arrived.

Alternatively, in another embodiment, S406 can include S4061~S4062.Also referring to Figure 11, Figure 11 It is the specific implementation flow chart of S406 in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention. It is specific as follows：

S4061：It is each self-corresponding that each sub-band is configured according to the number of the sub-band and the system bandwidth value Physical resource Information.

UE is according to the number of fixed sub-band, and to configure each sub-band each right for the system bandwidth value known The physical resource Information answered.

Further, the efficiency of each each self-corresponding physical resource Information of sub-band is configured in order to improve, in another reality Apply in mode, S4061 can be specially：Determined according to the number of the system bandwidth value and the sub-band described per height The number of resource block shared by frequency band.

System bandwidth value is that each sub-band draws resource block by minimum particle size of RB by UE.For example, RB is corresponding on frequency domain 12 continuous carrier waves (in the case of 15K carrier waves interval, 1 RB corresponds to 180KHz), a corresponding time slot in time domain Slot (corresponding half of the subframe of 1 time slot, the time span of 1 time slot is 0.5 millisecond of ms) resource.Calculate each sub-band institute The formula of the number of the resource block of occupancy is as follows：

Further, in another embodiment, S4061 can include S40611~S40613.Also referring to Figure 12, Figure 12 is the specific implementation stream of S4061 in a kind of method for indicating frequency selectivity precoding information provided in an embodiment of the present invention Cheng Tu.It is specific as follows：

S40611：Calculate the number of the number of assignable resource block corresponding to the system bandwidth value and the sub-band Between remainder.

S40612：If the remainder is zero, the number of the resource block shared by each sub-band can divide to be described The business of the number for the resource block matched somebody with somebody and the number of the sub-band.

For example, it is assumed that system bandwidth value is 40MHz, and corresponding 200 RB of 40MHz, the first bit shared by TPMI signalings Number is 40bit, and the second bit number shared by the TPMI of each sub-band is 4bit, then can uniform cutting according to formula (2) Into 10 sub-bands.Because the business between 200 and 10 is 20, remainder zero, each sub-band can be calculated according to formula (3) Band a width of 4MHz, corresponding 20 RB of each sub-band.

S40613：If the remainder is more than zero, the number of the resource block shared by the first sub-band and the second sub-band The difference of the number of shared resource block is equal to the remainder；Wherein, second sub-band be except first sub-band it Outer any sub-band.

When the remainder corresponding to system bandwidth value between the number of assignable resource block and the number of sub-band is more than zero When, UE is that each sub-band evenly distributes resource block, and the number for the resource block that each subband allocation arrives is assignable resource Business between the number of block and the number of sub-band, and by it is remaining go out RB by pre-defined rule be incorporated into one or at least two son frequency Band, the sub-band for being incorporated into remainder resource block is the second sub-band, and all sub-bands in addition to the second sub-band are first Sub-band, the number of each self-corresponding resource block of the first sub-band are identical.

For example, when UE by it is remaining go out RB be incorporated into a sub-band by pre-defined rule when, the second sub-band can be by system Last sub-band or first sub-band that bandwidth value marks off, can also be except the sub-band at the first both ends Between any sub-band.

UE can try one's best uniform principle according to the RB of each sub-band number, remainder RB is incorporated into respectively different The RB of sub-band, so some sub-band number is RBNum_subband, the RB of another part sub-band number is RBNum_subband+1。

S4062：According to physics corresponding to precoding matrix information corresponding to each sub-band, each sub-band The physical resource of resource information and current schedulable, obtain pre-coding matrix corresponding to each sub-band being currently assigned to.

S407：It is currently assigned to according to pre-coding matrix corresponding to each sub-band being currently assigned to described Modulation symbol corresponding to each sub-band carries out precoding.

UE is modulated to obtain modulation symbol first to code word, carries out layer mapping, then each according to being currently assigned to Pre-coding matrix corresponding to sub-band carries out precoding to modulation symbol corresponding to each sub-band for being currently assigned to, and will be every Modulation symbol after individual sub-band progress pre-encode operation maps to corresponding physical resource, OFDM symbol is generated, to pass through day Line end mouth sends OFDM symbol.

UE can return to S903 when detecting new TPMI signalings.

Such scheme, because the bit number of the UE TPMI signalings received is fixed, the bit number shared by TPMI signalings It will not change with the change of assignable bandwidth, the blind Detecting difficulty of physical downlink control channel PDCCH can be reduced.By All each self-corresponding pre-coding matrixes of sub-band corresponding to assignable bandwidth are included in TPMI signalings, in a update cycle Interior, no matter whether the sub-band that UE is assigned to, which changes, can use the TPMI signalings of newest reception corresponding to each sub-band Modulation symbol carry out precoding so that the TPMI signalings still can be used for newly assigned bandwidth uplink, so as to reduce The expense of downlink DL control signalings.UE according to the quotient and the remainder between system bandwidth value and the number of sub-band, it is determined that The number of resource block shared by each sub-band, can each self-corresponding physical resource Information of each sub-band of rapid configuration, Improve allocative efficiency.The embodiment of the present invention also provides a kind of base station, and the base station is used to perform the instruction frequency described in foregoing any one The unit of the method for rate selectivity precoding information.Specifically, referring to Figure 13, Figure 13 is a kind of base provided in an embodiment of the present invention The schematic block diagram stood.The base station 1 of the present embodiment includes：Determining unit 110, dispensing unit 120, generation unit 130 and signaling Transmitting element 140.

Determining unit 110, for determining the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and It is determined that the second bit number shared by the TPMI of each sub-band.

Dispensing unit 120, for determining son according to system bandwidth value, first bit number and second bit number The number of frequency band.

Specifically, dispensing unit 120 can include：

Sub-band number decision unit 121, for determining son according to first bit number and second bit number The number of frequency band；

Resource block number determining unit 122, for the number according to the system bandwidth value and the sub-band, it is determined that The number of resource block shared by each sub-band.

Generation unit 130, for the second bit number according to first bit number and each sub-band pair The precoding matrix information generation TPMI signalings answered.

Specifically, generation unit 130 can include：

Uplink reference signals receiving unit 131, for receiving the uplink reference signals of user equipment to report；

Physical resource Information dispensing unit 132, match somebody with somebody for the number according to the sub-band and the system bandwidth value Put each self-corresponding physical resource Information of each sub-band；

Further, physical resource Information dispensing unit 132 is specifically used for according to the system bandwidth value and the son The number of frequency band determines the number of the resource block shared by each sub-band；

Channel quality information determining unit 133, for the uplink reference signals according to the user equipment to report and Each each self-corresponding physical resource Information of sub-band determines the uplink signal-channel quality information of each sub-band；

Precoding matrix information determining unit 134, for determining institute according to the channel quality information of each sub-band State precoding matrix information corresponding to each sub-band；

Encapsulation unit 135, for according to first bit number and second bit number and the frequency per height With each self-corresponding precoding matrix information generation TPMI signalings.

Signaling transmitting element 140, for sending the TPMI signalings of the encapsulation to user equipment.

Further, signaling transmitting element 140 was specifically used for as described in the default update cycle to user equipment transmission TPMI signalings.

Alternatively, physical resource Information dispensing unit 132 can also include：

Computing unit 1321, for calculating the number of assignable resource block corresponding to the system bandwidth value and the son Remainder between the number of frequency band；

First allocation unit 1322, if being zero for the remainder, each resource block shared by sub-band Number is the business of the number and the number of the sub-band of the assignable resource block；

Second allocation unit 1323, if being more than zero for the remainder, the number of the resource block shared by the first sub-band The difference of the number of resource block shared by mesh and the second sub-band is equal to the remainder；Wherein, second sub-band is except institute State any sub-band outside the first sub-band.

Alternatively, base station can also include：

Physical source distributing unit 150, for distributing the physical resource of schedulable for the user equipment；

Physical resource Information transmitting element 160, for by down control channel by the letter of the schedulable physical resource Breath is sent to the user equipment.

Such scheme, base station determine the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and really The second bit number shared by the TPMI of fixed each sub-band；According to system bandwidth value, first bit number and described Two bit numbers determine the number of sub-band；According to first bit number and second bit number and the frequency per height Precoding matrix information generation TPMI signalings corresponding to band；The TPMI signalings of the encapsulation are sent to user equipment.Due to base station The TPMI signalings of the fixed number of bits of generation, the bit number shared by TPMI signalings will not become with the change of assignable bandwidth Change, the blind Detecting difficulty of physical downlink control channel PDCCH can be reduced.

TPMI signalings include all each self-corresponding pre-coding matrixes of sub-band and every height frequency corresponding to system bandwidth Physical resource Information corresponding to band, and sent with the default update cycle to user equipment, so as to ensure in the default update cycle Even if interior assignable bandwidth changes, the TPMI signalings still can be used for the uplink of newly assigned bandwidth, so as to drop The expense of low downlink DL control signalings.

The embodiment of the present invention also provides a kind of user equipment, and the user equipment is used to perform the instruction described in foregoing any one The unit of the method for frequency selectivity precoding information.Specifically, referring to Figure 14, Figure 14 is one kind provided in an embodiment of the present invention The schematic block diagram of user equipment.The user equipment 2 of the present embodiment includes：First determining unit 210, the second determining unit 220, connect Receive unit 230 and precoding unit 240.

First determining unit 210, for determining the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, And the second bit number shared by the TPMI of each sub-band of determination；

Second determining unit 220, for true according to system bandwidth value, first bit number and second bit number The number of sub-band；

Receiving unit 230, for receiving the transmitting pre-coding matrix instruction TPMI signalings of base station transmission；

3rd determining unit 240, for according to first bit number, second bit number and the TPMI signalings It is determined that the precoding matrix information of each sub-band.

Further, the 3rd determining unit 240 can include：

Signaling acquiring unit 241, for obtaining recently received TPMI signalings；

Precoding information determining unit 242, for according to first bit number, second bit number and it is described most The TPMI signalings newly received determine the precoding matrix information of each sub-band.

Further, precoding information determining unit 242 can include：

Dispensing unit 2421, each sub-band is configured for the number according to the sub-band and the system bandwidth value Each self-corresponding physical resource Information；

Pre-coding matrix acquiring unit 2422, for precoding matrix information, institute according to corresponding to each sub-band Physical resource Information corresponding to each sub-band and the physical resource of current schedulable are stated, obtains the every height being currently assigned to Pre-coding matrix corresponding to frequency band.

Further, pre-coding matrix acquiring unit 2422 is specifically used for：According to the system bandwidth value and the son The number of frequency band determines the number of the resource block shared by each sub-band.

Further, pre-coding matrix acquiring unit 2422 can include：

Computing unit 24221, for calculate the number of assignable resource block corresponding to the system bandwidth value with it is described Remainder between the number of sub-band；

First allocation unit 24222, if being zero for the remainder, each resource block shared by sub-band Number is the business of the number and the number of the sub-band of the assignable resource block；

Second allocation unit 24223, if being more than zero for the remainder, the number of the resource block shared by the first sub-band The difference of the number of resource block shared by mesh and the second sub-band is equal to the remainder；Wherein, second sub-band is except institute State any sub-band outside the first sub-band.

Alternatively, UE can also include：

Transmitting element 250, for sending uplink reference signals to the base station.

Alternatively, UE can also include：

Acquiring unit 260, for precoding matrix information, each sub-band according to corresponding to each sub-band The physical resource of corresponding physical resource Information and current schedulable, obtain pre- corresponding to each sub-band being currently assigned to Encoder matrix；

Precoding unit 270, for pre-coding matrix corresponding to each sub-band for being currently assigned to according to institute State modulation symbol corresponding to each sub-band being currently assigned to and carry out precoding.

Such scheme, because the bit number of the UE TPMI signalings received is fixed, the bit number shared by TPMI signalings It will not change with the change of assignable bandwidth, the blind Detecting difficulty of physical downlink control channel PDCCH can be reduced.By All each self-corresponding pre-coding matrixes of sub-band corresponding to assignable bandwidth are included in TPMI signalings, in a update cycle Interior, no matter whether the sub-band that UE is assigned to, which changes, can use the TPMI signalings of newest reception corresponding to each sub-band Modulation symbol carry out precoding so that the TPMI signalings still can be used for newly assigned bandwidth uplink, so as to reduce The expense of downlink DL control signalings.UE according to the quotient and the remainder between system bandwidth value and the number of sub-band, it is determined that The number of resource block shared by each sub-band, can each self-corresponding physical resource Information of each sub-band of rapid configuration, Improve allocative efficiency.

Referring to Figure 15, Figure 15 is a kind of schematic block diagram for base station that another embodiment of the present invention provides.As depicted originally Base station 3 in embodiment can include：One or more processors 310；One or more antennas 320 and memory 330.It is above-mentioned Processor 310, input equipment 320 and memory 330 are connected by bus 340.Memory 320 is used to store computer program, The computer program includes programmed instruction, and processor 310 is used for the programmed instruction for performing the storage of memory 320.Wherein, handle Device 310 is arranged to call described program instruction to perform：

According to pre-coding matrix letter corresponding to first bit number, second bit number and each sub-band Breath generation TPMI signalings；

The TPMI signalings are sent to user equipment.

Alternatively, processor 310 is specific is arranged to call described program instruction to perform：

Receive the uplink reference signals of user equipment to report；

Each self-corresponding physics money of each sub-band is configured according to the number of the sub-band and the system bandwidth value Source information；

According to the uplink reference signals of the user equipment to report and each self-corresponding physics of each sub-band Resource information determines the uplink signal-channel quality information of each sub-band；

The pre-coding matrix letter according to corresponding to the channel quality information of each sub-band determines each sub-band Breath；

According to first bit number, second bit number and each self-corresponding precoding square of each sub-band Battle array information generation TPMI signalings.

Resource according to shared by the number of the system bandwidth value and the sub-band determines each sub-band The number of block.

Calculate corresponding to the system bandwidth value between the number of assignable resource block and the number of the sub-band Remainder；

If the remainder is zero, the number of the resource block shared by each sub-band is the assignable resource The business of the number of block and the number of the sub-band；

If the remainder is more than zero, shared by the number of the resource block shared by the first sub-band and the second sub-band The difference of the number of resource block is equal to the remainder；Wherein, second sub-band is any in addition to first sub-band Sub-band.

Alternatively, processor 310 is additionally configured to call described program instruction to perform：Can for user equipment distribution The continuous physical resource of frequency of scheduling, and by down control channel by the information of the physical resource of the schedulable send to The user equipment.

Alternatively, processor 310 is specific is arranged to call described program instruction to perform：By the default update cycle to User equipment sends the TPMI signalings.

It should be appreciated that in embodiments of the present invention, alleged processor 310 can be CPU (Central Processing Unit, CPU), the processor can also be other general processors, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other FPGAs Device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or this at It can also be any conventional processor etc. to manage device.

Antenna 320 can include but is not limited to plate antenna or loop aerial etc..

The memory 330 can include read-only storage and random access memory, and to processor 310 provide instruction and Data.The a part of of memory 330 can also include nonvolatile RAM.For example, memory 330 can also be deposited Store up the information of device type.

In the specific implementation, the processor 310 and antenna 320 described in the embodiment of the present invention can perform the embodiment of the present invention Realization side described in the first embodiment and second embodiment of the method for the instruction frequency selectivity precoding information of offer Formula, the implementation of the base station described by the embodiment of the present invention is also can perform, will not be repeated here.

A kind of computer-readable recording medium, the computer-readable storage medium are provided in another embodiment of the invention Matter is stored with computer program, and the computer program includes programmed instruction, and described program instruction is realized when being executed by processor：

The TPMI signalings are sent to user equipment.

Alternatively, implemented when described program instruction is executed by processor：

Receive the uplink reference signals of user equipment to report；

Alternatively, implemented when described program instruction is executed by processor：According to the system bandwidth value and described The number of sub-band determines the number of the resource block shared by each sub-band.

Alternatively, also realized when described program instruction is executed by processor：The frequency of schedulable is distributed for the user equipment The continuous physical resource of rate, and sent the information of the physical resource of the schedulable to the user by down control channel Equipment.

Alternatively, implemented when described program instruction is executed by processor：By the default update cycle to user equipment Send the TPMI signalings.

The computer-readable recording medium can be the internal storage unit of the base station described in foregoing any embodiment, example Such as the hard disk or internal memory of base station.The computer-readable recording medium can also be the External memory equipment of the base station, such as The plug-in type hard disk being equipped with the base station, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card) etc..Further, the computer-readable recording medium can also be wrapped both Including the internal storage unit of the terminal also includes External memory equipment.The computer-readable recording medium is described for storing Other programs and data needed for computer program and the terminal.The computer-readable recording medium can be also used for temporarily When store the data that has exported or will export.

Referring to Figure 16, Figure 16 is a kind of schematic block diagram for user equipment that another embodiment of the present invention provides.As shown in the figure The present embodiment in user equipment 4 can include：One or more processors 410；One or more antennas 420 and memory 430.Above-mentioned processor 410, antenna 420 and memory 430 are connected by bus 440.Memory 420 is used to store computer journey Sequence, the computer program include programmed instruction, and processor 410 is used for the programmed instruction for performing the storage of memory 420.Wherein, Processor 410 is arranged to call described program instruction to perform：

Alternatively, processor 410 is additionally configured to call described program instruction to perform：

According to physical resource letter corresponding to precoding matrix information corresponding to each sub-band, each sub-band The physical resource of breath and current schedulable, obtains pre-coding matrix corresponding to each sub-band being currently assigned to；

According to pre-coding matrix corresponding to each sub-band being currently assigned to it is described be currently assigned to it is each Modulation symbol corresponding to sub-band carries out precoding.

Alternatively, processor 410 is specific is arranged to call described program instruction to perform：

Obtain recently received TPMI signalings；

Determined according to first bit number, second bit number and the recently received TPMI signalings each The precoding matrix information of sub-band.

According to physical resource letter corresponding to precoding matrix information corresponding to each sub-band, each sub-band The physical resource of breath and current schedulable, obtains pre-coding matrix corresponding to each sub-band being currently assigned to.

Alternatively, processor 410 is specific is arranged to call described program instruction to perform：According to the system bandwidth value And the number of the sub-band determines the number of the resource block shared by each sub-band.

Alternatively, processor 410 is additionally configured to call described program instruction to perform：Up ginseng is sent to the base station Examine signal.

It should be appreciated that in embodiments of the present invention, alleged processor 410 can be CPU (Central Processing Unit, CPU), the processor can also be other general processors, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other FPGAs Device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or this at It can also be any conventional processor etc. to manage device.

Antenna 420 can include but is not limited to plate antenna or loop aerial etc..

The memory 430 can include read-only storage and random access memory, and to processor 410 provide instruction and Data.The a part of of memory 430 can also include nonvolatile RAM.For example, memory 430 can also be deposited Store up the information of device type.

In the specific implementation, the processor 410, antenna 420 described in the embodiment of the present invention can perform the embodiment of the present invention Implementation described in the 3rd embodiment of the method for the instruction frequency selectivity precoding information of offer, also can perform this The implementation of user equipment described by inventive embodiments, will not be repeated here.

Alternatively, also realized when described program instruction is executed by processor：

Obtain recently received TPMI signalings；

Alternatively, also realized when described program instruction is executed by processor：Uplink reference signals are sent to the base station.

The computer-readable recording medium can be the storage inside list of the user equipment described in foregoing any embodiment Member, such as the hard disk or internal memory of user equipment.The computer-readable recording medium can also be the outside of the user equipment The plug-in type hard disk being equipped with storage device, such as the user equipment, intelligent memory card (Smart Media Card, SMC), Secure digital (Secure Digital, SD) blocks, flash card (Flash Card) etc..Further, it is described computer-readable to deposit Storage media can also both include the internal storage unit of the user equipment or including External memory equipment.It is described computer-readable Storage medium is used to store the computer program and other programs and data needed for the terminal.It is described computer-readable Storage medium can be also used for temporarily storing the data that has exported or will export.

Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein Member and algorithm steps, it can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware With the interchangeability of software, the composition and step of each example are generally described according to function in the above description.This A little functions are performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specially Industry technical staff can realize described function using distinct methods to each specific application, but this realization is not It is considered as beyond the scope of this invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, the base of foregoing description Stand, the specific work process of user equipment and unit, may be referred to the corresponding process in preceding method embodiment, it is no longer superfluous herein State.

In several embodiments provided herein, it should be understood that disclosed base station, terminal and method, can be with Realize by another way.For example, device embodiment described above is only schematical, for example, the unit Division, only a kind of division of logic function, can there is other dividing mode, such as multiple units or component when actually realizing Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.In addition, shown or beg for The mutual coupling of opinion or direct-coupling or communication connection can be the INDIRECT COUPLINGs by some interfaces, device or unit Or communication connection or electricity, the connection of mechanical or other forms.

The unit illustrated as separating component can be or may not be physically separate, show as unit The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected to realize scheme of the embodiment of the present invention according to the actual needs Purpose.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also It is that unit is individually physically present or two or more units are integrated in a unit.It is above-mentioned integrated Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.

If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially The part to be contributed in other words to prior art, or all or part of the technical scheme can be in the form of software product Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the present invention Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey The medium of sequence code.

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced Change, these modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection domain be defined.

Claims

A kind of 1. method for indicating frequency selectivity precoding information, it is characterised in that including：

It is determined that the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and determine the TPMI of each sub-band The second shared bit number；

The number of sub-band is determined according to system bandwidth value, first bit number and second bit number；

According to precoding matrix information life corresponding to first bit number, second bit number and each sub-band Into TPMI signalings；

The TPMI signalings are sent to user equipment.
2. according to the method for claim 1, it is characterised in that described according to first bit number, second bit Precoding matrix information generation TPMI signalings corresponding to several and described each sub-band, including：

Receive the uplink reference signals of user equipment to report；

Each self-corresponding physical resource letter of each sub-band is configured according to the number of the sub-band and the system bandwidth value Breath；

According to the uplink reference signals of the user equipment to report and each self-corresponding physical resource of each sub-band Information determines the uplink signal-channel quality information of each sub-band；

The precoding matrix information according to corresponding to the channel quality information of each sub-band determines each sub-band；

According to first bit number, second bit number and each self-corresponding pre-coding matrix letter of each sub-band Breath generation TPMI signalings.
3. according to the method for claim 2, it is characterised in that the number according to the sub-band and the system Bandwidth value configures each each self-corresponding physical resource Information of sub-band, including：

Resource block according to shared by the number of the system bandwidth value and the sub-band determines each sub-band Number.
4. according to the method for claim 3, it is characterised in that described according to the system bandwidth value and the sub-band Number determine the number of the resource block shared by each sub-band, including：

Calculate the remainder between the number of assignable resource block and the number of the sub-band corresponding to the system bandwidth value；

If the remainder is zero, the number of the resource block shared by each sub-band is the assignable resource block The business of number and the number of the sub-band；

If the remainder is more than zero, the resource shared by the number of the resource block shared by the first sub-band and the second sub-band The difference of the number of block is equal to the remainder；Wherein, second sub-band is any son frequency in addition to first sub-band Band.
5. according to the method for claim 1, it is characterised in that methods described also includes：

The physical resource of schedulable is distributed for the user equipment, and is provided the physics of the schedulable by down control channel The information in source is sent to the user equipment.
6. according to the method described in any one of claim 1 to 5, it is characterised in that described to send the TPMI to user equipment Signaling, including：

By the default update cycle TPMI signalings are sent to user equipment.
A kind of 7. method for indicating frequency selectivity precoding information, it is characterised in that including：

It is determined that the first bit number shared by transmitting pre-coding matrix instruction TPMI signalings, and determine the TPMI of each sub-band The second shared bit number；

The number of sub-band is determined according to system bandwidth value, first bit number and second bit number；

Receive the transmitting pre-coding matrix instruction TPMI signalings that base station is sent；

The precoding square of each sub-band is determined according to first bit number, second bit number and the TPMI signalings Battle array information.
8. according to the method for claim 7, it is characterised in that methods described also includes：

According to physical resource Information corresponding to precoding matrix information corresponding to each sub-band, each sub-band with And the physical resource of current schedulable, obtain pre-coding matrix corresponding to each sub-band being currently assigned to；

According to pre-coding matrix corresponding to each sub-band being currently assigned to the every height frequency being currently assigned to Modulation symbol carries out precoding corresponding to band.
9. the method according to claim 7 or 8, it is characterised in that it is described according to first bit number, it is described second ratio Special number and the TPMI signalings determine the precoding matrix information of each sub-band, including：

Obtain recently received TPMI signalings；

The frequency per height is determined according to first bit number, second bit number and the recently received TPMI signalings The precoding matrix information of band.
10. according to the method for claim 8, it is characterised in that the precoding according to corresponding to each sub-band Physical resource Information and the physical resource of current schedulable corresponding to matrix information, each sub-band, obtain current point Pre-coding matrix corresponding to each sub-band being fitted on, including：

Each self-corresponding physical resource letter of each sub-band is configured according to the number of the sub-band and the system bandwidth value Breath；

According to physical resource Information corresponding to precoding matrix information corresponding to each sub-band, each sub-band with And the physical resource of current schedulable, obtain pre-coding matrix corresponding to each sub-band being currently assigned to.
11. according to the method for claim 10, it is characterised in that the number according to the sub-band and the system Command width values and configure each each self-corresponding physical resource Information of sub-band, including：

Resource block according to shared by the number of the system bandwidth value and the sub-band determines each sub-band Number.
12. according to the method for claim 11, it is characterised in that it is described according to the system bandwidth value and it is described son frequency The number of band determines the number of the resource block shared by each sub-band, including：

Calculate the remainder between the number of assignable resource block and the number of the sub-band corresponding to the system bandwidth value；

If the remainder is zero, the number of the resource block shared by each sub-band is the assignable resource block The business of number and the number of the sub-band；

If the remainder is more than zero, the resource shared by the number of the resource block shared by the first sub-band and the second sub-band The difference of the number of block is equal to the remainder；Wherein, second sub-band is any son frequency in addition to first sub-band Band.
13. according to the method described in claim any one of 7-8, it is characterised in that methods described also includes：

Uplink reference signals are sent to the base station.
14. a kind of base station, it is characterised in that including for performing the method as described in claim 1-6 any claims Unit.
15. a kind of user equipment, it is characterised in that including for performing the side as described in claim 7-13 any claims The unit of method.
16. a kind of base station, it is characterised in that the processor, defeated including processor, input equipment, output equipment and memory Enter equipment, output equipment and memory to be connected with each other, wherein, the memory is used to store computer program, the computer Program includes programmed instruction, and the processor is arranged to call described program instruction, performed such as any one of claim 1-6 Described method.
A kind of 17. user equipment, it is characterised in that including processor, input equipment, output equipment and memory, the processing Device, input equipment, output equipment and memory are connected with each other, wherein, the memory is used to store computer program, the meter Calculation machine program includes programmed instruction, and the processor is arranged to call described program instruction, performs such as claim 7-13 Method described in any one.
A kind of 18. computer-readable recording medium, it is characterised in that the computer-readable storage medium is stored with computer program, The computer program includes programmed instruction, and described program instruction makes the computing device such as right when being executed by a processor It is required that the method described in any one of 1-6.
A kind of 19. computer-readable recording medium, it is characterised in that the computer-readable storage medium is stored with computer program, The computer program includes programmed instruction, and described program instruction makes the computing device such as right when being executed by a processor It is required that the method described in any one of 7-13.