CN109391407A

CN109391407A - A kind of CSI back method and resource allocation methods and equipment

Info

Publication number: CN109391407A
Application number: CN201710682202.2A
Authority: CN
Inventors: 李辉; 高秋彬; 陈润华; 拉盖施; 黄秋萍; 苏昕
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-08-10
Filing date: 2017-08-10
Publication date: 2019-02-26
Anticipated expiration: 2037-08-10
Also published as: CN109391407B; WO2019029289A1

Abstract

The invention discloses a kind of CSI back method and resource allocation methods and equipment, comprising: terminal calculates channel state information CSI using the codebook parameter that base station configures, and obtains CSI information, includes order instruction RI in the CSI information；The terminal obtains the first uplink channel resources that base station is the terminal distribution, when the value of the RI is greater than 1, the terminal is sent to the base station using the 1 CSI information of order in the CSI information as the first CSI information and by first uplink channel resources, so that the base station can be the second uplink channel resources that the terminal distribution is used for transmission the 2nd CSI information according to the first CSI information, the 2nd CSI information is that the remaining CSI information of 1 CSI information of order is removed in the CSI information.

Description

A kind of CSI back method and resource allocation methods and equipment

Technical field

The present invention relates to wireless communication technology field more particularly to a kind of CSI back methods and resource Distribution method and equipment.

Background technique

In MIMO (Multiple-Input Multiple-Output, multiple-input and multiple-output) system, on terminal needs CSI (Channel State Information, channel state information) is reported, CSI includes that (Rank Indication, order refer to RI Show), PMI (Precoding Matrix Indicator, pre-coding matrix instruction), CQI (Channel Quality Indication, channel quality instruction), it is also possible to it include CSI-RS (Channel State Information Reference Signal, channel state information measuring reference signals) resource instruction CRI information, it is used for make terminal that CSI is reported to base station Base station scheduling, base station needs to distribute uplink channel resources and reports CSI for terminal, for a certain codebook configuration of base station, terminal Report CSI load can with the difference of RI dynamic change.

Type is defined in NR (New RAT (radio access technology), novel radio access technology) system I code book and Type II code book, when base station is terminal Configuration Type II code book, the load for the CSI that terminal reports can be with RI not Together, the dynamic range of load overhead is larger, if distributing uplink information resource according to maximum cost, may result in money The larger waste in source；If the ascending resource of distribution is smaller, the precision of feedback not can guarantee.

So in the prior art, lacking an effective CSI feedback for the larger situation of dynamic range is fed back in NR system Method.

Summary of the invention

The embodiment of the present invention provides a kind of CSI back method and resource allocation methods and equipment, is used for Solve the technical issues of situation that feedback dynamic range is larger in NR system lacks an effective CSI feedback method.

For this purpose, the embodiment of the present invention provides a kind of CSI back method, comprising:

Terminal calculates channel state information CSI using the codebook parameter that base station configures, and obtains CSI information, the CSI letter It include order instruction RI in breath；

The terminal obtains the first uplink channel resources that base station is the terminal distribution, when the value of the RI is greater than 1, 1 CSI information of order in the CSI information as the first CSI information and is passed through first uplink channel resources by the terminal It is sent to the base station, so that the base station can be that the terminal distribution is used for transmission the according to the first CSI information Second uplink channel resources of two CSI information, the 2nd CSI information are that remaining for 1 CSI information of order is removed in the CSI information Remaining CSI information；

The terminal obtains second uplink channel resources, and passes through second uplink channel resources to the base station Send the 2nd CSI information, so that the base station is after receiving the 2nd CSI information, by the first CSI information with The 2nd CSI information merges and then obtains the complete CSI information.

Optionally, the 1 CSI information of order includes interior required for the pre-coding matrix that the RI, construction order rank are 1 Appearance and the corresponding channel quality indicator (CQI) of a code word codeword；And if the terminal needs that CSI-RS resource is reported to refer to Show CRI, the 1 CSI information of order further includes CRI.

Optionally, the construction order rank includes: for content required for 1 pre-coding matrix

The beam selection in twiddle factor, PMI in pre-coding matrix instruction PMI, the most strong coefficient of first layer in PMI, The band amplitude of first layer in PMI, in PMI in the subband amplitude of first layer and PMI first layer subband phase.

Optionally, when the 1 CSI information of order includes CRI, the terminal will be in the CRI, the RI and the PMI The band amplitude combined coding of first layer, and by first layer in beam selection in twiddle factor in the PMI, PMI, PMI The subband amplitude of first layer in most strong coefficient, PMI passes through institute after the subband phase of first layer and the CQI combined coding in PMI It states the first uplink channel resources and is sent to the base station.

Optionally, the residue CSI information includes the most strong coefficient of the second layer to RI layers in PMI, the second layer is extremely in PMI RI layers of band amplitude, the subband amplitude of the second layer to RI layers in PMI, in PMI the second layer to RI layers subband phase Position and extra code word codeword correspond to CQI.

Optionally, the terminal is by the band amplitude absolute coding of the second layer to RI layers in the PMI, by PMI Two layers to RI layers of most strong coefficient, the subband amplitude of the second layer to RI layers in PMI, in PMI the second layer to RI layers Subband phase and extra code word codeword are corresponded to and are sent to institute by second uplink channel resources after CQI combined coding State base station.

Optionally, when the value of the RI is 1, comprising:

The terminal is sent using the CSI information as the first CSI information by first uplink channel resources To the base station, so that the base station receives the complete CSI information by the first CSI information.

On the other hand, the embodiment of the present invention also provides a kind of resource allocation methods, comprising:

Base station is the first uplink channel resources that terminal distribution is used for transmission the first CSI information, first up channel Resource is determined by the codebook parameter that the base station is configured by the terminal；

RI in the first CSI information that the base station is sent according to the terminal by first uplink channel resources Value determines total uplink channel resources needed for the terminal sends the CSI information；

When the value of the RI is greater than 1, the first CSI information is the 1 CSI information of order in the CSI information, described Base station is according to total uplink channel resources and sends used first uplink channel resources of the first CSI information, The second uplink channel resources needed for the terminal sends the 2nd CSI information are calculated, the 2nd CSI information is described The remaining CSI information of 1 CSI information of order is removed in CSI information；

The base station is the second uplink channel resources described in the terminal distribution, so that the terminal can be described in Second uplink channel resources send the 2nd CSI information.

The most strong system of the beam selection in twiddle factor, PMI in pre-coding matrix instruction PMI, the first layer in PMI Number, the band amplitude of first layer in PMI, the subband phase of the subband amplitude of first layer in PMI and the first layer in PMI Position.

Optionally, when the value of the RI is 1, the first CSI information is the complete CSI information, comprising:

The base station receives the first CSI information that the terminal is sent by first uplink channel resources, into And obtain the complete CSI information.

On the other hand, the embodiment of the present invention also provides a kind of terminal, comprising:

Computing module, the codebook parameter for using base station to configure calculates channel state information CSI, and obtains CSI information, It include order instruction RI in the CSI information；

First obtains module, for obtaining the first uplink channel resources that base station is the terminal distribution, the RI's When value is greater than 1, the terminal as the first CSI information and passes through the 1 CSI information of order in the CSI information on described first Row channel resource is sent to the base station, so that the base station can be the terminal distribution according to the first CSI information The second uplink channel resources of the 2nd CSI information are used for transmission, the 2nd CSI information is that order 1 is removed in the CSI information The remaining CSI information of CSI information；

Second obtains module, for obtaining second uplink channel resources, and passes through second uplink channel resources The 2nd CSI information is sent to the base station, so that the base station is after receiving the 2nd CSI information, by described the One CSI information and the 2nd CSI information merge and then obtain the complete CSI information.

Optionally, the second coding module, for when the 1 CSI information of order includes CRI, by the CRI, the RI with The band amplitude combined coding of first layer in the PMI, and will be in beam selection in twiddle factor in the PMI, PMI, PMI The subband amplitude of first layer in the most strong coefficient of first layer, PMI, the subband phase of first layer and the CQI combined coding in PMI The base station is sent to by first uplink channel resources afterwards.

Optionally, comprising: the second coding module, for the band amplitude of the second layer to RI layers in the PMI is independent Coding, the most strong coefficient of the second layer to RI layers in PMI, the subband amplitude of the second layer to RI layers in PMI, second in PMI Layer passes through second up channel after corresponding to CQI combined coding to RI layers of subband phase and extra code word codeword Resource is sent to the base station.

Optionally, when the value of the RI is 1, comprising:

Sending module, for passing through first uplink channel resources for the CSI information as the first CSI information It is sent to the base station, so that the base station receives the complete CSI information by the first CSI information.

On the other hand, the embodiment of the present invention also provides a kind of base station equipment, comprising:

First distribution module, it is described for being used for transmission the first uplink channel resources of the first CSI information for terminal distribution First uplink channel resources are determined by the codebook parameter that the base station is configured by the terminal；

Determining module passes through the first of first uplink channel resources transmission according to the terminal for the base station The value of RI in CSI information determines total uplink channel resources needed for the terminal sends the CSI information；

Computing module, when being greater than 1 for the value in the RI, the first CSI information is the order 1 in the CSI information CSI information according to total uplink channel resources and sends the used first up channel money of the first CSI information The second uplink channel resources needed for the terminal sends the 2nd CSI information are calculated in source, and the 2nd CSI information is institute State the remaining CSI information that 1 CSI information of order is removed in CSI information；

Second distribution module, for being the second uplink channel resources described in the terminal distribution, so that the terminal energy Enough the 2nd CSI information is sent using second uplink channel resources.

Optionally, when the value of the RI is 1, the first CSI information is the complete CSI information, including

Module passes through the first CSI that first uplink channel resources are sent for receiving the terminal:

Information is received, and then obtains the complete CSI information.

On the other hand, the embodiment of the invention provides a kind of terminal, which mainly includes processor and memory, In, preset program is preserved in memory, processor reads the program in memory, following procedure is executed according to the program:

Optionally, when the value of the RI is 1, the terminal passes through the CSI information as the first CSI information First uplink channel resources are sent to the base station, so that the base station has been received by the first CSI information The whole CSI information.

On the other hand, the embodiment of the invention provides a kind of base station equipment, base station equipment mainly includes processor and storage Device, wherein preset program is preserved in memory, processor reads the program in memory, executes according to the program following Process:

Twiddle factor in pre-coding matrix instruction PMI, the most strong system of the beam selection in PMI, the first layer in PMI The band amplitude of number, first layer in PMI, the subband amplitude of the first layer in PMI and the subband phase of the first layer in PMI Position.

Optionally, when the value of the RI is 1, the first CSI information is the complete CSI information, the base station The first CSI information that the terminal is sent by first uplink channel resources is received, and then is obtained complete described CSI information.

On the other hand, the embodiment of the present invention also provides a kind of CSI back method, comprising:

Terminal obtains the uplink channel resources that the base station is the terminal distribution, and the uplink channel resources include being used for It transmits the first area of the first CSI information and is used for transmission the second area of user data；

When the value of the RI is greater than 1, the terminal is using the 1 CSI information of order in the CSI information as described first CSI information is simultaneously sent to the base station by the first area；Portion of user data to be transmitted in second area is replaced At the 2nd CSI information, it is sent to the base station will pass through the second area for the 2nd CSI information, so that institute Base station is stated after receiving the first CSI information and the 2nd CSI information, can by the first CSI information with it is described 2nd CSI information merges the complete CSI information of acquisition, wherein the 2nd CSI information is in the CSI information Remove the remaining CSI information of order 1CSI information.

Optionally, when the 1 CSI information of order includes CRI, the terminal will be in the CRI, the RI and the PMI The band amplitude combined coding of first layer, and by first layer in beam selection in twiddle factor in the PMI, PMI, PMI The subband amplitude of first layer in most strong coefficient, PMI passes through institute after the subband phase of first layer and the CQI combined coding in PMI It states first area and is sent to the base station.

Optionally, the terminal is by the band amplitude absolute coding of the second layer to RI layers in the PMI, by PMI The subband amplitude of two layers to RI layers of most strong coefficient, the second layer to RI layers in PMI, the second layer is to RI layers in PMI Subband phase and extra code word codeword correspond to CQI combined coding as the 2nd CSI information, pass through secondth area Domain is sent to the base station.

Optionally, when the value of the RI is 1, comprising:

The terminal is sent to the base by the first area using the CSI information as the first CSI information It stands, so that the base station receives the complete CSI information by the first CSI information.

On the other hand, the embodiment of the invention also provides a kind of resource allocation methods, comprising:

Base station is terminal distribution uplink channel resources, and the uplink channel resources are by the codebook parameter that base station is that terminal configures It determines, the uplink channel resources include being used for transmission the first area of the first CSI information and being used for transmission user data Second area；

When the value of RI is greater than 1 in CSI information, the base station receives first that terminal is sent by the first area CSI information and the 2nd CSI information that sends on the second region of terminal is received, and then by the first CSI information and described 2nd CSI information merges to obtain complete CSI information；

Wherein, the first CSI information is the 1 CSI information of order in the CSI information, and the 2nd CSI information is institute State the remaining CSI information that 1 CSI information of order is removed in CSI information.

The base station receives the first CSI information that terminal is sent by the first area, and then passes through described the The complete CSI information of one CSI information acquisition.

Computing unit, the codebook parameter for using base station to configure calculates channel state information CSI, and obtains CSI information, It include order instruction RI in the CSI information；

Acquiring unit, for obtaining the uplink channel resources that the base station is the terminal distribution, the up channel money Source includes the first area for being used for transmission the first CSI information and the second area for being used for transmission user data；

First transmission unit, for the value in the RI be greater than 1 when, using the 1 CSI information of order in the CSI information as The first CSI information is simultaneously sent to the base station by the first area；By certain customers to be transmitted in second area Data are substituted for the 2nd CSI information, are sent to the base station will pass through the second area for the 2nd CSI information, into And make the base station after receiving the first CSI information and the 2nd CSI information, the first CSI can be believed Breath merges the complete CSI information of acquisition with the 2nd CSI information, wherein the 2nd CSI information is described The remaining CSI information of 1 CSI information of order is removed in CSI information.

Optionally, comprising:

First coding unit, for when the 1 CSI information of order includes CRI, by the CRI, the RI and the PMI The band amplitude combined coding of middle first layer, and by beam selection in twiddle factor in the PMI, PMI, first layer in PMI Most strong coefficient, the subband amplitude of first layer in PMI, pass through after the subband phase of first layer and the CQI combined coding in PMI The first area is sent to the base station.

Optionally, comprising: the second coding unit, for the band amplitude of the second layer to RI layers in the PMI is independent Coding, in PMI the second layer to RI layers most strong coefficient, second in the subband amplitude of the second layer to RI layers in PMI, PMI Layer to RI layers of subband phase and extra code word codeword corresponds to CQI combined coding as the 2nd CSI information, leads to It crosses the second area and is sent to the base station.

Optionally, when the value of the RI is 1, comprising:

Second transmission unit, for being sent using the CSI information as the first CSI information by the first area To the base station, so that the base station receives the complete CSI information by the first CSI information.

In another aspect, the embodiment of the present invention also provides a kind of base station equipment, comprising:

Distribution module, for being terminal distribution uplink channel resources, the uplink channel resources are terminal configuration by base station Codebook parameter determined, the uplink channel resources include be used for transmission the first CSI information first area and be used for transmission The second area of user data；

First receiving module, when the value for the RI in CSI information is greater than 1, the base station receives terminal by described the The first CSI information and receive the 2nd CSI information that sends on the second region of terminal that one region is sent, and then by described the One CSI information and the 2nd CSI information merge to obtain complete CSI information；

The most strong system of the beam selection in twiddle factor, PMI in pre-coding matrix instruction PMI, the first layer in PMI Number, the subband phase of the band amplitude of the first layer in PMI, the subband amplitude of first layer in PMI and the first layer in PMI Position.

Second receiving module, the first CSI information sent for receiving terminal by the first area, Jin Ertong Cross the first CSI information acquisition completely CSI information.

Optionally, the terminal is by the band amplitude absolute coding of the second layer to RI layers in the PMI, by PMI Two layers to RI layers of most strong coefficient, the subband amplitude of the second layer to RI layers in PMI, in PMI the second layer to RI layers Subband phase and extra code word codeword correspond to CQI combined coding as the 2nd CSI information, pass through secondth area Domain is sent to the base station.

Optionally, when the value of the RI is 1, comprising:

On the other hand, the embodiment of the invention provides a kind of base station equipment, which mainly includes processor and deposits Reservoir, wherein preserve preset program in memory, processor reads the program in memory, according to the program execute with Lower process:

Said one or multiple technical solutions in the embodiment of the present application at least have following one or more technology effects Fruit:

1, in embodiments of the present invention, channel state information is calculated using the codebook parameter that base station configures by using terminal CSI, and CSI information is obtained, it include order instruction RI in the CSI information；And the terminal obtains base station as the terminal point The first uplink channel resources matched, when the value of the RI is greater than 1, the terminal is by the 1 CSI information of order in the CSI information It is sent to the base station as the first CSI information and by first uplink channel resources, so that the base station being capable of root It is that the terminal distribution is used for transmission the second uplink channel resources of the 2nd CSI information according to the first CSI information, described second CSI information is that the remaining CSI information of 1 CSI information of order is removed in the CSI information；And the terminal obtains on described second Row channel resource, and the 2nd CSI information is sent to the base station by second uplink channel resources, so as to the base It stands after receiving the 2nd CSI information, the first CSI information is merged and then obtained with the 2nd CSI information Obtain the technical solution of the completely CSI information.

Namely in NR system, the CSI information fed back is needed to be decomposed into 1 CSI information of order and residue CSI information terminal, Uplink channel resources are distributed according to 1 CSI information of order and residue CSI information in base station respectively, and terminal reports 1 CSI information of order respectively With remaining CSI information, to realize the accurate feedback of the effective distribution and CSI information of ascending resource.

2, in the embodiment of the present invention, channel state information is calculated using the codebook parameter that base station configures by using terminal CSI, and CSI information is obtained, it include order instruction RI in the CSI information；And terminal obtains the base station as the terminal point The uplink channel resources matched, the uplink channel resources include being used for transmission the first area of the first CSI information and being used for transmission The second area of user data；And when the value of the RI is greater than 1, the terminal believes 1 CSI of order in the CSI information Breath as the first CSI information and is sent to the base station by the first area；By portion to be transmitted in second area Divide user data to be substituted for the 2nd CSI information, is sent to the base will pass through the second area for the 2nd CSI information It stands, so that the base station is after receiving the first CSI information and the 2nd CSI information, it can be by described first CSI information and the 2nd CSI information merge the complete CSI information of acquisition, wherein the 2nd CSI information is The technical solution of the remaining CSI information of 1 CSI information of order is removed in the CSI information.

Namely in NR system, the CSI information fed back is needed to be decomposed into 1 CSI information of order and residue CSI information terminal, Base station is that the uplink channel resources of terminal distribution include being used for transmission the first area of 1 CSI information of order and being used for transmission number of users According to second area so that terminal sends 1 CSI of the order letter in CSI information by the first area in uplink channel resources It ceases to base station, the portion of user data sent in the second area in uplink channel resources is substituted for the residue in CSI information CSI information, and then remaining CSI information is sent to by base station by the second area in uplink channel resources, to realize uplink The accurate feedback of the effective distribution and CSI information of resource.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, embodiment will be described below Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some Embodiment.

Fig. 1 is a kind of flow chart for CSI back method that the embodiment of the present application one provides；

Fig. 2 is a kind of terminal structure schematic diagram that the embodiment of the present application one provides；

Fig. 3 is a kind of base station equipment structure schematic diagram that the embodiment of the present application one provides；

Fig. 4 is a kind of flow chart for CSI back method that the embodiment of the present application two provides；

Fig. 5 is a kind of terminal structure schematic diagram that the embodiment of the present application two provides；

Fig. 6 is a kind of base station equipment structure schematic diagram that the embodiment of the present application two provides.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical solution of the present invention is clearly and completely described, it is clear that described embodiment is skill of the present invention A part of the embodiment of art scheme, instead of all the embodiments.Based on the embodiment recorded in present specification, this field is general Logical technical staff every other embodiment obtained without creative efforts, belongs to the technology of the present invention side The range of case protection.

Embodiment one

Referring to FIG. 1, in the embodiment of the present invention, a kind of CSI back method provided, including following step It is rapid:

Step S101: terminal calculates channel state information CSI using the codebook parameter that base station configures, and obtains CSI information, It include order instruction RI in the CSI information；

Step S102: terminal obtains the first uplink channel resources that base station is the terminal distribution, big in the value of the RI When 1, the terminal is believed using the 1 CSI information of order in the CSI information as the first CSI information and by first uplink Road resource is sent to the base station, so that the base station can be that the terminal distribution is used for according to the first CSI information The second uplink channel resources of the 2nd CSI information are transmitted, the 2nd CSI information is that 1 CSI of order letter is removed in the CSI information The remaining CSI information of breath.

Step S103: the terminal obtains second uplink channel resources, and passes through second uplink channel resources The 2nd CSI information is sent to the base station, so that the base station is after receiving the 2nd CSI information, by described the One CSI information and the 2nd CSI information merge and then obtain the complete CSI information.

During concrete practice, the embodiment of the present invention is first carried out what step S101 namely terminal were configured using base station Codebook parameter calculates channel state information CSI, and obtains CSI information, includes order instruction RI in the CSI information.

In novel radio access NR system, base station can configure different codebook parameters for terminal and then terminal can be made Channel state information CSI is calculated for the codebook parameter of its configuration with base station, such as base station can be terminal Configuration Type II code book, And then terminal can be used base station and calculate CSI for the Type II code book of its configuration, obtain CSI information；Base station can also be terminal Configuration Type I code book, and then terminal can be used base station and calculate CSI for the type I code book of its configuration, obtain CSI information, In, different types of code book also has different port numbers, for example, Type II code book includes 32 port type II code books, 16 ends Mouth Type II code book etc., in the present embodiment, specifically by taking base station is terminal 32 port type II code books of configuration as an example, then, eventually End can be that 32 port type II code books of terminal configuration calculate CSI, and obtain CSI information using base station, in the CSI information Including order instruction RI, wherein RI value is that 1 or RI is greater than 1 for example 2 etc..

In practical applications, when the value that terminal calculates the RI in the CSI information obtained is 1, which can also be wrapped It includes content required for the pre-coding matrix that construction order rank is 1 and the corresponding channel quality of a code word codeword refers to Show CQI, and if should also include CRI when base station is that terminal is configured with more than one CSI-RS resource.In concrete practice mistake Cheng Zhong, the RI in above-mentioned CSI information, content and a code word required for the pre-coding matrix that construction order rank is 1 The corresponding channel quality indicator (CQI) of codeword and CRI (if necessary to above give the correct time) are also known as 1 CSI of order of the CSI information Information.

During concrete practice, content required for the pre-coding matrix that above-mentioned construction order rank is 1 may include: pre- Encoder matrix indicates the twiddle factor in PMI, the beam selection in PMI, the most strong coefficient of the first layer in PMI, the in PMI One layer of band amplitude, the subband amplitude of the first layer in PMI, the subband phase of the first layer in PMI.

When terminal, which calculates the RI in the CSI information obtained, is greater than 1, the CSI information is in addition to may include above-mentioned 1 CSI of order It can also include the most strong coefficient of the second layer to RI layers in PMI except information, the broadband width of the second layer to RI layers in PMI It spends, the subband phase and code redundant of the second layer to RI layers in the subband amplitude and PMI of the second layer to RI layers in PMI The CQI of word codeword.

For example, the CSI information further includes the most strong coefficient of the second layer in PMI, the second layer in PMI when the value of RI is 2 Band amplitude, the subband amplitude of the second layer in PMI, the subband phase of the second layer and extra code word codeword in PMI CQI；When the value of RI is 3, which can also include the most strong coefficient of the second layer and the most strong coefficient of third layer in PMI, The band amplitude of the band amplitude and third layer of the second layer in PMI, the subband amplitude of the second layer and the subband width of third layer in PMI Degree and PMI in the second layer subband phase, the CQI of the subband phase of third layer and extra code word codeword.

The embodiment of the present invention carries out step S102 namely terminal acquisition base station is after executing the step S101 First uplink channel resources of the terminal distribution, when the value of the RI is greater than 1, the terminal will be in the CSI information 1 CSI information of order is sent to the base station as the first CSI information and by first uplink channel resources, so that described Base station can be the second up channel money that the terminal distribution is used for transmission the 2nd CSI information according to the first CSI information Source, the 2nd CSI information are that the remaining CSI information of 1 CSI information of order is removed in the CSI information.

During concrete practice, terminal can receive the first uplink channel resources that base station is terminal distribution, in reality In, base station can be the first uplink channel resources of terminal distribution according to the expense of 1 CSI information of order, and 1 CSI information of order is eventually End uses CSI information of the order Rank for 1 code book feedback when.

Please refer to table one and table two, it is assumed here that base station is only configured with the CSI-RS resource of 32 ports, that is, does not need CRI is reported.The wave beam that base station is configured with 32 port type II code books merges number L=3, and feedback sub-band number is 10, defines RI and opens 3 bit of pin, feedback sub-band number are 10, and predefined 3 bit of RI expense of system, the corresponding channel quality of a code word codeword refers to Show that the CQI of CQI namely each subband is 4 bits, then, according to table one and table two, it is known that, the size of 1 CSI information of order For RI+PMI+CQI=3+192+40=235 bit, then, base station can be according to the big of the calculated 1 CSI information of order It is small to transmit occupied first uplink channel resources of 235 bit informations for terminal the first CSI information of feedback for terminal distribution.

The PMI feedback overhead (wideband portions) of one 32 port type II code book of table

The PMI feedback overhead (subband part) of 2 32 port type II code book of table

So, terminal is obtaining base station as occupied first uplink channel resources of 235 bit information of transmission of its distribution Afterwards, terminal is that can be according to the value condition of terminal RI in calculating the CSI information obtained, decision by complete CSI information work It is sent to base station for occupied first uplink channel resources of 235 bit information of transmission that the first CSI information is distributed by base station, Or terminal is calculated into the transmission 235 that the order 1CSI information in the CSI information obtained is distributed as the first CSI information by base station Occupied first uplink channel resources of bit information are sent to base station.

Specifically, when RI is 2 such as RI value greater than 1, then, terminal will will calculate the order 1 in the CSI information obtained CSI information is as the first CSI information, occupied first uplink channel resources of 235 bit information of transmission distributed by base station It is sent to base station, in practical applications, terminal can be incited somebody to action when sending the first CSI information by above-mentioned first uplink channel resources The band amplitude of first layer is combined into a part and is compiled in RI and PMI in 1 CSI information of first CSI information namely order Code, by twiddle factor in PMI, beam selection in PMI, the most strong coefficient of first layer in PMI, the subband amplitude of first layer in PMI, The subband phase of first layer and CQI are combined into after a part encoded in PMI, then are sent by the first uplink channel resources To the base station.

Certainly, terminal can also be by the RI in 1 CSI information of the first CSI information namely order, the broadband width of first layer in PMI It spends, twiddle factor in PMI, beam selection in PMI, the most strong coefficient of first layer in PMI, the subband amplitude of first layer in PMI, The subband phase of first layer and CQI are used as into a binary encoding in PMI, then described in being sent to by the first uplink channel resources Base station.

It is understood that in other application, if further including CRI in 1 CSI information of order, then, actually answering , can also be by the RI in 1 CSI information of order in, the band amplitude of first layer in PMI, twiddle factor in PMI, wave beam in PMI It selects, the most strong coefficient of first layer in PMI, the subband amplitude of first layer in PMI, the subband phase of first layer and CQI make in PMI To be sent to the base station at a binary encoding, then by the first uplink channel resources；Or by first layer in CRI, RI and PMI Band amplitude be combined into a part and encoded, by twiddle factor in PMI, beam selection in PMI, first layer in PMI Most strong coefficient, the subband amplitude of first layer in PMI, the subband phase of first layer and CQI are combined into a part and carry out in PMI After coding, then by the first uplink channel resources it is sent to the base station.

In the present embodiment, the band amplitude of first layer in the RI and PMI in 1 CSI information of order is specifically made by group with terminal A part is synthesized to be encoded, by twiddle factor in PMI, beam selection in PMI, the most strong coefficient of first layer, PMI in PMI The subband amplitude of middle first layer, the subband phase of first layer and CQI are combined into after a part encoded in PMI, then are passed through First uplink channel resources are sent to for the base station.

So, base station will receive the 1 CSI information of order that terminal uses the first uplink information resource to send, the order 1 It include the RI in the CSI information of terminal calculating acquisition in CSI information, then, base station can be from 1 CSI of the order letter received Breath determines RI, and total uplink channel resources according to needed for the exploitation terminal side of RI transmission CSI information.

Above-mentioned table one and table two are please referred to, when RI value is specially 2, base station is in 3 bit of expense for considering RI, if 32 ends In mouthful Type II code book no matter rank=1 when or equal only one code word codeword when rank=2, a code word Codeword respective channels quality indicator (CQI), each subband CQI are 4 bits, and the CQI expense of 10 subbands is just 40 bits, then When RI value is specially 2, base station computing terminal sends total CSI information and needs RI+PMI+CQI=3+370+40=413 bit.

If rank=1 corresponds to a codeword in 32 port type II code books, the CQI of each subband is 4 bits；And There are two code word codeword when having a code word codeword, rank=2 when rank=1, then each subband includes two CQI, the corresponding CQI1 of respectively the first codeword are 4 bits, and the corresponding CQI2 of the 2nd codeword is 3 bits, every height Band includes CQI1 and CQI2 totally 7 bit.The CQI expense of 3 bit of expense, 10 subbands that consider RI is 70 bits, then RI value When specially 2, base station computing terminal sends total CSI information and needs RI+PMI+CQI=3+370+70=443 bit.

Specifically, in 32 port type II code books no matter rank=1 when or only one equal code word when rank=2 Codeword, and base station computing terminal is sent for total CSI information needs RI+PMI+CQI=3+370+40=413 bit.

Since base station is configured with transmission occupied first uplink channel resources of 235 bit informations for sending out to terminal The first CSI information in CSI information is sent, then, base station is according to total 413 bit of CSI expense and first time CSI information reporting Expense namely terminal send 235 bits that the first CSI information uses, and calculate terminal and send remaining CSI information in CSI information Expense be 413-235=178 bit.So, base station is terminal according to this occupied resource of 178 bit CSI expense is transmitted The second uplink channel resources are distributed for feeding back remaining CSI information in the CSI information namely CSI information that do not report for the first time.

Specifically, corresponding to a codeword with rank=1 in 32 port type II code books, the CQI of each subband is 4 ratios Spy, and have a code word codeword when rank=1, there are two code word codeword when rank=2, and base station computing terminal is sent out For sending total CSI information to need RI+PMI+CQI=3+370+70=443 bit.

Since base station is configured with transmission occupied first uplink channel resources of 235 bit informations for sending out to terminal The first CSI information in CSI information is sent, then, base station is according to total 443 bit of CSI expense and first time CSI information reporting Expense namely terminal send 235 bits that the first CSI information uses, and calculate terminal and send remaining CSI information in CSI information The occupied resource of expense be 443-235=208 bit.So, base station is terminal according to this 208 bit CSI expense is transmitted The second uplink channel resources are distributed for feeding back remaining CSI information in the CSI information namely CSI information that do not report for the first time.

The embodiment of the present invention carries out step S103 namely the terminal obtains institute after executing the step S102 The second uplink channel resources are stated, and send the 2nd CSI information to the base station by second uplink channel resources, with Toilet states base station after receiving the 2nd CSI information, and the first CSI information is closed with the 2nd CSI information And the complete CSI information is obtained in turn.

Specifically, terminal is receiving the occupied second uplink letter of 178 bit information of transmission that base station is terminal distribution After road resource, just by the residue in CSI information to remove 1 CSI information of order in the 2nd CSI information namely CSI information of feedback CSI information is sent to base station by transmitting occupied second uplink channel resources of 178 bit informations, in practical applications, eventually It holds and is sending the remaining CSI for removing 1 CSI information of order in the 2nd CSI information namely CSI information by the second uplink channel resources It, can be by the band amplitude absolute coding of the second layer to RI layers in the PMI in the 2nd CSI information, by PMI second when information Layer is to RI layers of most strong coefficient, the subband amplitude of the second layer to RI layers in PMI, the son of the second layer to RI layers in PMI After band phase combination is encoded at a part, then by second uplink channel resources it is sent to the base station.

Terminal can also be by the second layer in the band amplitude of the second layer to RI layers in the PMI in the 2nd CSI information and PMI To RI layers of most strong coefficient, the subband amplitude of the second layer to RI layers in PMI, the subband of the second layer to RI layers in PMI After phase is encoded as a whole, the base station is sent to by second uplink channel resources.

In the present embodiment, specifically with the band amplitude of the second layer to RI layers in the PMI in the 2nd CSI information is independent Coding, by the most strong coefficient of the second layer in PMI to RI layers, in the subband amplitude and PMI of the second layer to RI layers in PMI After the subband phase combination of the second layer to RI layers is encoded at a part, then pass through second uplink channel resources hair For giving the base station, then, base station utilizes the 2nd CSI information of second uplink channel resources transmission receiving terminal Afterwards, so that it may received first CSI information and this received 2nd CSI information will merge, and then obtain complete before CSI information.

Specifically, terminal is receiving the occupied second uplink letter of 208 bit information of transmission that base station is terminal distribution After road resource, just by the residue in CSI information to remove 1 CSI information of order in the 2nd CSI information namely CSI information of feedback CSI information is sent to base station by transmitting occupied second uplink channel resources of 208 bit informations, in practical applications, eventually It holds and is sending the remaining CSI for removing 1 CSI information of order in the 2nd CSI information namely CSI information by the second uplink channel resources It, can be by the band amplitude absolute coding of the second layer to RI layers in the PMI in the 2nd CSI information, by PMI second when information Layer is to RI layers of most strong coefficient, the subband amplitude of the second layer to RI layers in PMI, the son of the second layer to RI layers in PMI Band phase and the corresponding CQI of 1 code word codeword of residue are combined into after a part encoded, then pass through described second Uplink channel resources are sent to the base station.

So in NR system, needing the CSI information fed back to be decomposed into 1 CSI information of order terminal by the above method With remaining CSI information.Uplink channel resources are distributed according to 1 CSI information of order and residue CSI information in base station respectively, terminal respectively on 1 CSI information of order and residue CSI information are reported, to realize the accurate feedback of the effective distribution and CSI information of ascending resource.

Certainly, in practical applications, can also there be terminal and calculate the case where value of the RI in the CSI information obtained is 1, this When, terminal calculates the CSI information obtained and just only has 1 this part of CSI information of order, then, terminal is receiving base station as its point When the first up channel matched, so that it may be passed using complete CSI information as the first CSI information by the first up channel Base station is defeated by,

In embodiments of the present invention, it is expense according to 1 CSI information of order that base station, which is the first up channel of terminal distribution, Hold distribution, for example base station is configured with the wave beams of 32 port type II code books and merges number L=3, feedback sub-band number is 10, fixed Adopted 3 bit of RI expense, feedback sub-band number are 10, predefined 3 bit of RI expense of system, the corresponding channel of a code word codeword The CQI of quality indicator (CQI) namely each subband is 4 bits, then, it is found that 1 CSI of order believes according to above-mentioned table one and table two The size of breath is RI+PMI+CQI=3+192+40=235 bit, then, base station can be according to 1 CSI of the calculated order The size of information is that terminal distribution transmits the first uplink channel resources of bit occupied by 235 information for terminal feedback first CSI information.

And in the case where the value that terminal calculates the RI in the CSI information obtained is 1, at this moment, terminal calculates the CSI obtained Information just only has 1 this part of CSI information of order, which is also 235 bits, then, terminal can be big by it Small is 235 bit order, 1 CSI information, is sent to base station by transmitting occupied first uplink channel resources of 235 bit informations, And then realize the accurate feedback of the effective distribution and CSI information of ascending resource.

Based on the same inventive concept, a kind of resource allocation methods are provided in the embodiment of the present invention, the resource allocation methods Applied to base station side, the specific implementation of this method can be found in the description of the above-mentioned embodiment of the method part applied to terminal side, weight Multiple place repeats no more, this method comprises:

Based on the same inventive concept, a kind of terminal, the channel state information CSI of the terminal are provided in the embodiment of the present invention The specific implementation of feedback method can be found in the description of embodiment of the method part, and overlaps will not be repeated, referring to FIG. 2, the end End specifically includes that

Computing module 10, the codebook parameter for using base station to configure calculate channel state information CSI, and obtain CSI letter It ceases, includes order instruction RI in the CSI information；

First obtains module 11, for obtaining the first uplink channel resources that base station is the terminal distribution, in the RI Value be greater than 1 when, the terminal using the 1 CSI information of order in the CSI information as the first CSI information and pass through described first Uplink channel resources are sent to the base station, so that the base station can be the terminal point according to the first CSI information The second uplink channel resources of the 2nd CSI information of transmission are used in, the 2nd CSI information is that order 1 is removed in the CSI information The remaining CSI information of CSI information；

Second obtains module 12, provides for obtaining second uplink channel resources, and by second up channel Source sends the 2nd CSI information to the base station, will be described so that the base station is after receiving the 2nd CSI information First CSI information and the 2nd CSI information merge and then obtain the complete CSI information.

Optionally, the second coding module, for when the 1 CSI information of order includes CRI, by the CRI, the RI with The band amplitude combined coding of first layer and will be in beam selection in twiddle factor in the PMI, PMI, PMI in the PMI The subband amplitude of first layer in the most strong coefficient of first layer, PMI, the subband phase of first layer and the CQI combined coding in PMI The base station is sent to by first uplink channel resources afterwards.

Optionally, the second coding module, for by the band amplitude absolute coding of the second layer to RI layers in the PMI, Extremely by the second layer in the subband amplitude of the second layer to RI layers in the most strong coefficient of the second layer in PMI to RI layers, PMI, PMI RI layers of subband phase and extra code word codeword pass through second uplink channel resources after corresponding to CQI combined coding It is sent to the base station.

Optionally, when the value of the RI is 1, comprising:

Based on the same inventive concept, a kind of base station equipment, the resource point of the base station equipment are provided in the embodiment of the present invention The specific implementation of method of completing the square can be found in the description of embodiment of the method part, and overlaps will not be repeated, referring to FIG. 3, the base station Equipment specifically includes that

First distribution mould 21, it is described for being used for transmission the first uplink channel resources of the first CSI information for terminal distribution First uplink channel resources are determined by the codebook parameter that the base station is configured by the terminal；

Determining module 22 passes through the first of first uplink channel resources transmission according to the terminal for the base station The value of RI in CSI information determines total uplink channel resources needed for the terminal sends the CSI information；

Computing module 23, when being greater than 1 for the value in the RI, the first CSI information is the order in the CSI information 1 CSI information according to total uplink channel resources and sends used first up channel of the first CSI information Resource, is calculated the second uplink channel resources needed for the terminal sends the 2nd CSI information, and the 2nd CSI information is The remaining CSI information of 1 CSI information of order is removed in the CSI information；

Second distribution module 24, for being the second uplink channel resources described in the terminal distribution, so that the terminal The 2nd CSI information can be sent using second uplink channel resources.

Receiving module, the first CSI letter sent for receiving the terminal by first uplink channel resources Breath, and then obtain the complete CSI information.

Based on the same inventive concept, the embodiment of the invention provides a kind of terminal, which realizes channel state information CSI The specific implementation of feedback method can be found in the description of embodiment of the method part, and overlaps will not be repeated, which mainly includes Processor and memory, wherein preset program is preserved in memory, processor reads the program in memory, according to this Program executes following procedure:

Based on the same inventive concept, the embodiment of the invention provides a kind of base station equipment, which realizes resource point The specific implementation of method of completing the square can be found in the description of embodiment of the method part, and overlaps will not be repeated, which mainly wraps Include processor and memory, wherein preset program is preserved in memory, processor reads the program in memory, according to The program executes following procedure:

Embodiment two

Referring to FIG. 4, for another CSI back method provided in an embodiment of the present invention, comprising:

Step S201: terminal calculates channel state information CSI using the codebook parameter that base station configures, and obtains CSI information, It include order instruction RI in the CSI information；

Step S203: terminal obtains the uplink channel resources that the base station is the terminal distribution, the up channel money Source includes the first area for being used for transmission the first CSI information and the second area for being used for transmission user data；

Step S204: the RI value be greater than 1 when, the terminal using the 1 CSI information of order in the CSI information as The first CSI information is simultaneously sent to the base station by the first area；By certain customers to be transmitted in second area Data are substituted for the 2nd CSI information, are sent to the base station will pass through the second area for the 2nd CSI information, into And make the base station after receiving the first CSI information and the 2nd CSI information, the first CSI can be believed Breath merges the complete CSI information of acquisition with the 2nd CSI information, wherein the 2nd CSI information is described The remaining CSI information of 1 CSI information of order is removed in CSI information.

During concrete practice, another kind CSI back method provided by Embodiment 2 of the present invention is first It first carries out step S201 namely terminal and calculates channel state information CSI using the codebook parameter that base station configures, and obtain CSI letter It ceases, includes order instruction RI in the CSI information.

In practical applications, when the value that terminal calculates the RI in the CSI information obtained is 1, which can also be wrapped It includes content required for the pre-coding matrix that construction order rank is 1 and the corresponding channel quality of a code word codeword refers to Show CQI, and if the terminal need to report CSI-RS resource to indicate CRI, the 1 CSI information of order further includes CRI, in this implementation In example, it is assumed that base station is only configured with 1 32 port CSI-RS resource, does not need to report CRI at this time.

During concrete practice, RI in above-mentioned CSI information, required for the pre-coding matrix that construction order rank is 1 Content and the corresponding channel quality indicator (CQI) of a code word codeword are also known as the 1 CSI information of order of the CSI information.

When terminal, which calculates the RI in the CSI information obtained, is greater than 1, the CSI information is in addition to may include above-mentioned 1 C of order It can also include the most strong coefficient of the second layer to RI layers in PMI except SI information, the broadband of the second layer to RI layers in PMI Amplitude, the subband phase of the second layer to RI layers in the subband amplitude and PMI of the second layer to RI layers in PMI, if it exists Extra code word codeword, then, which can also include the CQI of extra code word codeword.

The embodiment of the present invention carries out step S202 namely terminal obtains the base after executing the step S201 The uplink channel resources stood as the terminal distribution, the uplink channel resources include be used for transmission the first CSI information first Region and the second area for being used for transmission user data.

During concrete practice, terminal can receive the uplink channel resources that base station is terminal distribution, in the present embodiment In, base station is that the uplink channel resources of terminal distribution include being used for transmission the first area of the first CSI information and being used for transmission use The second area of user data.

During concrete practice, base station can set base station as the uplink of terminal distribution according to the expense of order 1CSI information The size of first area in channel resource, 1 CSI information of order are that terminal uses CSI letter of the order Rank for 1 code book feedback when Breath.

Here the table one and table two in embodiment one are please referred to, it is assumed here that base station is configured with 32 port type II code books Wave beam merges number L=3, in 32 port type II code books no matter rank=1 when or only one equal code word when rank=2 Codeword, feedback sub-band number are 10, define 3 bit of RI expense, and feedback sub-band number is 10, predefined 3 bit of RI expense of system, The CQI of the corresponding channel quality indicator (CQI) of one code word codeword namely each subband is 4 bits, then, according to one He of table Shown in table two, it is known that, the size of order 1CSI information is RI+PMI+CQI=3+192+40=235 bit, then, base station The size of the first area in uplink channel resources is set according to the size of the calculated 1 CSI information of order as transmission 235 The occupied resource of bit information, then, size is the transmission occupied resource size of 235 bit informations in uplink channel resources First area may be used for terminal feed back the first CSI information.

During concrete practice, base station can according to terminal to base station send user data send it is indicated in request The size of uplink data to be transferred, to set the size for the second area for being used for transmission user data in uplink channel resources, for example, When the size of the terminal uplink data to be transferred indicated into base station transmission user data transmission request is 500 bit, base station Can by the second area for being used for transmission user data in uplink channel resources and be dimensioned to transmission 500 bits letter Cease occupied resource, at this moment, base station to terminal distribution uplink channel resources be sized for transmission 500 bit datas shared by The sum of resource size and the transmission occupied resource size of 235 bit informations.

It is 800 bits when terminal sends user data to send the size of uplink data to be transferred indicated in request to base station When, base station can by the second area for being used for transmission user data in uplink channel resources and be dimensioned to transmit 800 bit datas occupied resource sizes, at this moment, base station are sized for transmitting to the uplink channel resources of terminal distribution The sum of the occupied resource size of 800 bit datas and the transmission occupied resource size of 235 bit informations.

In the present embodiment, user data is specifically sent to base station with terminal and sends uplink number to be passed indicated in request According to size be 500 bits for, base station to terminal distribution uplink channel resources be sized for transmission 500 bit data institutes The sum of resource size and the transmission occupied resource size of 235 bit informations of occupancy, including being used for transmission the first CSI information The size of first area is the transmission occupied resource size of 235 bit informations, is used for transmission the second area of user data It is sized for the transmission occupied resource size of 500 bit datas, then, terminal receives the up channel money of base station transmission Step S203 is carried out behind source:

When the value of the RI is greater than 1, the terminal is using the 1 CSI information of order in the CSI information as described first CSI information is simultaneously sent to the base station by the first area；Portion of user data to be transmitted in second area is replaced At the 2nd CSI information, it is sent to the base station will pass through the second area for the 2nd CSI information, so that institute Base station is stated after receiving the first CSI information and the 2nd CSI information, can by the first CSI information with it is described 2nd CSI information merges the complete CSI information of acquisition, wherein the 2nd CSI information is in the CSI information Remove the remaining CSI information of 1 CSI information of order.

Specifically, terminal receives base station transmission when the RI in the CSI information that terminal calculates acquisition is 2 such as RI greater than 1 The uplink channel resources after, will using the 1 CSI information of order in CSI information as the first CSI information by receive it is upper First area is sent to base station in row channel resource

Terminal, can be by the first CSI information when sending the first CSI information by first area in uplink channel resources The band amplitude of first layer is combined into a part and is encoded in RI and PMI i.e. in 1 CSI information of order, will revolve in PMI Transposon, beam selection in PMI, the most strong coefficient of first layer in PMI, the subband amplitude of first layer in PMI, first layer in PMI Subband phase and CQI be combined into after a part encoded, then institute is sent to by first area in uplink channel resources State base station.

Certainly, terminal can also be by the RI in 1 CSI information of the first CSI information namely order, the broadband width of first layer in PMI It spends, twiddle factor in PMI, beam selection in PMI, the most strong coefficient of first layer in PMI, the subband amplitude of first layer in PMI, The subband phase of first layer and CQI are used as into a binary encoding in PMI, then are sent by first area in uplink channel resources To the base station, in the present embodiment, specifically with terminal by the band amplitude of first layer in the RI and PMI in 1 CSI information of order A part is combined into be encoded, by twiddle factor in PMI, beam selection in PMI, the most strong coefficient of first layer in PMI, The subband amplitude of first layer in PMI, the subband phase of first layer and CQI are combined into after a part encoded in PMI, then are led to First area in uplink channel resources is crossed to be sent to for the base station.

Meanwhile terminal can will also calculate remaining CSI information of the CSI information other than 1 CSI information of order that obtains as 2nd CSI information replaces in uplink channel resources second in second area partial user data namely uplink channel resources For transmitting user data when the script of region, but when terminal calculates the RI in the CSI information obtained and is greater than 1, the CSI information Including remaining this two parts of CSI information in 1 CSI information of order and CSI information other than 1 CSI information of order, at this moment, eventually Second area partial user data in row channel resource will be substituted for remaining CSI information by end, at this point, uplink channel resources The content of middle second area transmission just includes remaining CSI information and the user data that another part is not replaced.

For example, when remaining CSI information of the CSI information other than 1 CSI information of order is 178 bits, then, terminal will The portion of user data for transmitting the occupied resource of 178 bit informations in row channel resource in second area is substituted for residue CSI information, at this point, the content that second area transmits in uplink channel resources just includes the remaining CSI information institute for transmitting 178 bits The occupied resource of user data that the resource and another part of occupancy are not replaced.

So, terminal can using second area in the uplink channel resources by CSI information in addition to 1 CSI information of order Except remaining CSI information namely the 2nd CSI information be sent to base station, in practical applications, terminal passing through up channel provide When second area sends the remaining CSI information for removing 1 CSI information of order in the 2nd CSI information namely CSI information in source, it can incite somebody to action The band amplitude absolute coding of the second layer to RI layers in PMI in 2nd CSI information, by the second layer in PMI to RI layers Most strong coefficient, the subband amplitude of the second layer to RI layers in PMI, in PMI the subband phase combination of the second layer to RI layers at After one part is encoded, then the base station is sent to by second area in uplink channel resources.

Terminal can also be by the second layer in the band amplitude of the second layer to RI layers in the PMI in the 2nd CSI information and PMI To RI layers of most strong coefficient, the subband amplitude of the second layer to RI layers in PMI, the subband of the second layer to RI layers in PMI Phase and after being encoded as a whole, is sent to the base station by second area in uplink channel resources.

So, base station is receiving terminal using the first CSI information and reception of uplink channel resources first area transmission To after the 2nd CSI information using uplink channel resources hair, so that it may close the first CSI information with the 2nd CSI information And obtain complete CSI information.

So in NR system, needing the CSI information fed back to be decomposed into 1 CSI information of order terminal by the above method With remaining CSI information, base station be terminal distribution uplink channel resources include be used for transmission 1 CSI information of order first area and It is used for transmission the second area of user data, so that terminal sends CSI letter by the first area in uplink channel resources The portion of user data sent in second area in uplink channel resources is substituted for by the 1 CSI information of order in breath to base station Remaining CSI information in CSI information, and then remaining CSI information is sent to by base by the second area in uplink channel resources It stands, to realize the accurate feedback of the effective distribution and CSI information of ascending resource.

Certainly, in practical applications, can also there be terminal and calculate the case where value of the RI in the CSI information obtained is 1, this When, terminal calculates the CSI information obtained and just only has 1 this part of CSI information of order, then, terminal is receiving base station as its point When the ascending resource channel matched, so that it may pass through the in uplink channel resources for complete CSI information as the first CSI information One area transmissions are to base station, so that base station receives complete CSI information by the first CSI information.

Based on the same inventive concept, a kind of resource allocation methods are provided in the embodiment of the present invention, this method is applied to base It stands side, the specific implementation of this method can be found in the description of the above-mentioned embodiment of the method part applied to terminal side, in place of repeating not It repeats again, this method comprises:

Based on the same inventive concept, a kind of terminal, the channel state information CSI of the terminal are provided in the embodiment of the present invention The specific implementation of feedback method can be found in the description of embodiment of the method part, and overlaps will not be repeated, referring to FIG. 5, the base Station equipment specifically includes that

Computing unit 30, the codebook parameter for using base station to configure calculate channel state information CSI, and obtain CSI letter It ceases, includes order instruction RI in the CSI information；

Acquiring unit 31, for obtaining the uplink channel resources that the base station is the terminal distribution, the up channel Resource includes the first area for being used for transmission the first CSI information and the second area for being used for transmission user data；

When being greater than 1 for the value in the RI, the 1 CSI information of order in the CSI information is made for first transmission unit 32 For the first CSI information and the base station is sent to by the first area；Part to be transmitted in second area is used User data is substituted for the 2nd CSI information, is sent to the base station will pass through the second area for the 2nd CSI information, So that the base station is after receiving the first CSI information and the 2nd CSI information, it can be by the first CSI Information and the 2nd CSI information merge the complete CSI information of acquisition, wherein the 2nd CSI information is described The remaining CSI information of 1 CSI information of order is removed in CSI information.

Optionally, comprising:

Optionally, comprising: the second coding unit, for the band amplitude of the second layer to RI layers in the PMI is independent Coding, by the subband amplitude of the second layer to RI layers in the most strong coefficient of the second layer in PMI to RI layers, PMI, PMI the Two layers to RI layers of subband phase and extra code word codeword correspond to CQI combined coding as the 2nd CSI information, The base station is sent to by the second area.

Optionally, when the value of the RI is 1, comprising:

Based on the same inventive concept, a kind of base station equipment, the resource point of the base station equipment are provided in the embodiment of the present invention The specific implementation of the transmission method of method of completing the square can be found in the description of embodiment of the method part, and overlaps will not be repeated, please refers to Fig. 6, the base station equipment specifically include that

Distribution module 40 is used to be terminal distribution uplink channel resources, and the uplink channel resources are matched by base station for terminal The codebook parameter set is determined that the uplink channel resources include being used for transmission the first area of the first CSI information and for passing The second area of defeated user data；

First receiving module 41, when the value for the RI in CSI information is greater than 1, the base station receives terminal described in The first CSI information and receive the 2nd CSI information that terminal is sent on the second region that first area is sent, and then will be described First CSI information and the 2nd CSI information merge to obtain complete CSI information；

Optionally, when the 1 CSI information of order includes CRI, the terminal will be in the CRI, the RI and the PMI The band amplitude combined coding of first layer, and by beam selection in twiddle factor in the PMI, PMI, first layer in PMI The subband amplitude of first layer in most strong coefficient, PMI passes through institute after the subband phase of first layer and the CQI combined coding in PMI It states first area and is sent to the base station.

Optionally, when the value of the RI is 1, comprising:

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.) Formula.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of CSI back method characterized by comprising

Terminal calculates channel state information CSI using the codebook parameter that base station configures, and obtains CSI information, in the CSI information Including order instruction RI；

The terminal obtains the first uplink channel resources that base station is the terminal distribution, described when the value of the RI is greater than 1 Terminal is sent using the order 1CSI information in the CSI information as the first CSI information and by first uplink channel resources To the base station, so that the base station can be that the terminal distribution is used for transmission the 2nd CSI according to the first CSI information Second uplink channel resources of information, the 2nd CSI information are the remaining CSI that order 1CSI information is removed in the CSI information Information；

The terminal obtains second uplink channel resources, and is sent by second uplink channel resources to the base station The 2nd CSI information, so that the base station is after receiving the 2nd CSI information, by the first CSI information with it is described 2nd CSI information merges and then obtains the complete CSI information.

2. the method as described in claim 1, which is characterized in that the order 1CSI information includes that the RI, construction order rank are 1 Pre-coding matrix required for content and the corresponding channel quality indicator (CQI) of a code word codeword；And if the end End needs that CSI-RS resource is reported to indicate CRI, and the order 1CSI information further includes CRI.

3. method according to claim 2, which is characterized in that required for the pre-coding matrix that the construction order rank is 1 Content includes:

The beam selection in twiddle factor, PMI in pre-coding matrix instruction PMI, the most strong coefficient of first layer in PMI, in PMI In the band amplitude of first layer, PMI in the subband amplitude of first layer and PMI first layer subband phase.

4. method as claimed in claim 3, which is characterized in that when the order 1CSI information includes CRI, the terminal is by institute State the band amplitude combined coding of first layer in CRI, the RI and the PMI, and will be in twiddle factor in the PMI, PMI The most strong coefficient of first layer in beam selection, PMI, the subband amplitude of first layer in PMI, in PMI the subband phase of first layer with The base station is sent to by first uplink channel resources after the CQI combined coding.

5. the method as described in claim 1, which is characterized in that the residue CSI information include in PMI the second layer to RI layers Most strong coefficient, the band amplitude of the second layer to RI layers in PMI, the subband amplitude of the second layer to RI layers in PMI, PMI The subband phase of the middle second layer to RI layers and extra code word codeword correspond to CQI.

6. method as claimed in claim 5, which is characterized in that the terminal is by the width of the second layer to RI layers in the PMI Band amplitude absolute coding, by the subband width of the second layer to RI layers in the most strong coefficient of the second layer in PMI to RI layers, PMI Degree, described in the subband phase of the second layer to RI layer and extra code word codeword correspond to and are passed through after CQI combined coding in PMI Second uplink channel resources are sent to the base station.

7. method as described in claim 1, which is characterized in that when the value of the RI is 1, comprising:

The terminal is sent to institute by first uplink channel resources using the CSI information as the first CSI information Base station is stated, so that the base station receives the complete CSI information by the first CSI information.

8. a kind of resource allocation methods characterized by comprising

Base station is the first uplink channel resources that terminal distribution is used for transmission the first CSI information, first uplink channel resources It is determined by the codebook parameter that the base station is configured by the terminal；

The value of RI in the first CSI information that the base station is sent according to the terminal by first uplink channel resources, really Total uplink channel resources needed for the fixed terminal sends the CSI information；

When the value of the RI is greater than 1, the first CSI information is the order 1CSI information in the CSI information, the base station root According to total uplink channel resources and used first uplink channel resources of the first CSI information are sent, are calculated Second uplink channel resources needed for sending the 2nd CSI information to the terminal, the 2nd CSI information are the CSI information The middle remaining CSI information for removing order 1CSI information；

The base station is the second uplink channel resources described in the terminal distribution, so that the terminal can utilize described second Uplink channel resources send the 2nd CSI information.

9. method according to claim 8, which is characterized in that the order 1CSI information includes that the RI, construction order rank are 1 Pre-coding matrix required for content and the corresponding channel quality indicator (CQI) of a code word codeword；And if the end End needs that CSI-RS resource is reported to indicate CRI, and the order 1CSI information further includes CRI.

10. method as claimed in claim 9, which is characterized in that required for the pre-coding matrix that the construction order rank is 1 Content includes:

Most strong coefficient, the PMI of the beam selection in twiddle factor, PMI in pre-coding matrix instruction PMI, the first layer in PMI In the band amplitude of first layer, the subband amplitude of first layer in PMI, the subband phase of first layer in PMI.

11. method according to claim 8, which is characterized in that the residue CSI information include in PMI the second layer to RI The most strong coefficient of layer, the band amplitude of the second layer to RI layers in PMI, the subband amplitude of the second layer to RI layers in PMI, The subband phase of the second layer to RI layers and extra code word codeword correspond to CQI in PMI.

12. method according to claim 8, which is characterized in that when the value of the RI is 1, the first CSI information has been The whole CSI information, comprising:

The base station receives the first CSI information that the terminal is sent by first uplink channel resources, and then obtains Obtain the completely CSI information.

13. a kind of terminal characterized by comprising

Computing module, the codebook parameter for using base station to configure calculates channel state information CSI, and obtains CSI information, described It include order instruction RI in CSI information；

First obtains module, big in the value of the RI for obtaining the first uplink channel resources that base station is the terminal distribution When 1, the terminal is believed using the order 1CSI information in the CSI information as the first CSI information and by first uplink Road resource is sent to the base station, so that the base station can be that the terminal distribution is used for according to the first CSI information The second uplink channel resources of the 2nd CSI information are transmitted, the 2nd CSI information is that order 1CSI letter is removed in the CSI information The remaining CSI information of breath；

Second obtains module, for obtaining second uplink channel resources, and passes through second uplink channel resources to institute It states base station and sends the 2nd CSI information, so that the base station is after receiving the 2nd CSI information, by the first CSI Information and the 2nd CSI information merge and then obtain the complete CSI information.

14. terminal as claimed in claim 13, which is characterized in that the order 1CSI information includes the RI, construction order rank Content required for pre-coding matrix for 1 and the corresponding channel quality indicator (CQI) of a code word codeword；And if institute It states terminal to need that CSI-RS resource is reported to indicate CRI, the order 1CSI information further includes CRI.

15. terminal as claimed in claim 14, which is characterized in that required for the pre-coding matrix that the construction order rank is 1 Content include:

16. terminal as claimed in claim 13 characterized by comprising

Second coding module, for when the order 1CSI information includes CRI, by the CRI, the RI and the PMI the One layer of band amplitude combined coding, and most by first layer in beam selection in twiddle factor in the PMI, PMI, PMI The subband amplitude of first layer in strong coefficient, PMI, in PMI after the subband phase of first layer and the CQI combined coding by described First uplink channel resources are sent to the base station.

17. terminal as claimed in claim 13, which is characterized in that the residue CSI information include in PMI the second layer to RI The most strong coefficient of layer, the band amplitude of the second layer to RI layers in PMI, the subband amplitude of the second layer to RI layers in PMI, The subband phase of the second layer to RI layers and extra code word codeword correspond to CQI in PMI.

18. terminal as claimed in claim 13 characterized by comprising

Second coding module, for by the band amplitude absolute coding of the second layer to RI layers in the PMI, by PMI second The most strong coefficient of layer to RI layers, the subband amplitude of the second layer to RI layers in PMI, in PMI the second layer to RI layers son Described in band phase and extra code word codeword correspond to after CQI combined coding and to be sent to by second uplink channel resources Base station.

19. terminal as described in claim 13, which is characterized in that when the value of the RI is 1, comprising:

Sending module, for being sent using the CSI information as the first CSI information by first uplink channel resources To the base station, so that the base station receives the complete CSI information by the first CSI information.

20. a kind of base station equipment characterized by comprising

First distribution module, for being used for transmission the first uplink channel resources of the first CSI information for terminal distribution, described first Uplink channel resources are determined by the codebook parameter that the base station is configured by the terminal；

Determining module is believed according to the terminal by the first CSI that first uplink channel resources are sent for the base station The value of RI in breath determines total uplink channel resources needed for the terminal sends the CSI information；

Computing module, when being greater than 1 for the value in the RI, the first CSI information is the order 1CSI letter in the CSI information Breath according to total uplink channel resources and sends used first uplink channel resources of the first CSI information, meter Calculation obtains the second uplink channel resources needed for the terminal sends the 2nd CSI information, and the 2nd CSI information is the CSI The remaining CSI information of order 1CSI information is removed in information；

Second distribution module, for being the second uplink channel resources described in the terminal distribution, so that the terminal being capable of benefit The 2nd CSI information is sent with second uplink channel resources.

21. base station equipment as claimed in claim 20, which is characterized in that the order 1CSI information includes the RI, construction order Content and the corresponding channel quality indicator (CQI) of a code word codeword required for the pre-coding matrix that rank is 1；And If the terminal needs that CSI-RS resource is reported to indicate CRI, the order 1CSI information further includes CRI.

22. base station equipment as claimed in claim 21, which is characterized in that the order rank that constructs is 1 pre-coding matrix institute The content needed includes:

The most strong coefficient of the beam selection in twiddle factor, PMI in pre-coding matrix instruction PMI, the first layer in PMI, PMI In the band amplitude of first layer, the subband phase of the subband amplitude of first layer in PMI and the first layer in PMI.

23. base station equipment as claimed in claim 20, which is characterized in that the residue CSI information includes that the second layer is extremely in PMI The subband width of the band amplitude of the second layer to RI layers in RI layers of most strong coefficient, PMI, the second layer to RI layers in PMI The subband phase of the second layer to RI layers and extra code word codeword correspond to CQI in degree, PMI.

24. base station equipment as claimed in claim 20, which is characterized in that when the value of the RI is 1, the first CSI letter Breath is the complete CSI information, comprising:

Receiving module, the first CSI information sent for receiving the terminal by first uplink channel resources, into And obtain the complete CSI information.

25. a kind of CSI back method characterized by comprising

Terminal obtains the uplink channel resources that the base station is the terminal distribution, and the uplink channel resources include being used for transmission The first area of first CSI information and the second area for being used for transmission user data；

When the value of the RI is greater than 1, the terminal is believed the order 1CSI information in the CSI information as the first CSI It ceases and passes through the first area and be sent to the base station；Portion of user data to be transmitted in second area is substituted for second CSI information is sent to the base station will pass through the second area for the 2nd CSI information, so that the base station It, can be by the first CSI information and the 2nd CSI after receiving the first CSI information and the 2nd CSI information Information merges the complete CSI information of acquisition, wherein the 2nd CSI information is to remove order in the CSI information The remaining CSI information of 1CSI information.

26. method as claimed in claim 25, which is characterized in that the order 1CSI information includes the RI, construction order rank Content required for pre-coding matrix for 1 and the corresponding channel quality indicator (CQI) of a code word codeword；And if institute It states terminal to need that CSI-RS resource is reported to indicate CRI, the order 1CSI information further includes CRI.

27. method as claimed in claim 26, which is characterized in that required for the pre-coding matrix that the construction order rank is 1 Content include:

28. method as claimed in claim 27, which is characterized in that when the order 1CSI information includes CRI, the terminal will The band amplitude combined coding of first layer in the CRI, the RI and the PMI, and by twiddle factor, PMI in the PMI The most strong coefficient of first layer in middle beam selection, PMI, the subband amplitude of first layer in PMI, in PMI first layer subband phase The base station is sent to by the first area with after the CQI combined coding.

29. method as claimed in claim 25, which is characterized in that the residue CSI information include in PMI the second layer to RI The most strong coefficient of layer, the band amplitude of the second layer to RI layers in PMI, the subband amplitude of the second layer to RI layers in PMI, The subband phase of the second layer to RI layers and extra code word codeword correspond to CQI in PMI.

30. method as claimed in claim 29, which is characterized in that the terminal is by the second layer in the PMI to RI layers Band amplitude absolute coding, by the subband of the second layer to RI layers in the most strong coefficient of the second layer in PMI to RI layers, PMI The subband phase of the second layer to RI layers and extra code word codeword are corresponded to described in the conduct of CQI combined coding in amplitude, PMI 2nd CSI information is sent to the base station by the second area.

31. method as recited in claim 25, which is characterized in that when the value of the RI is 1, comprising:

The terminal is sent to the base station by the first area using the CSI information as the first CSI information, with So that the base station receives the complete CSI information by the first CSI information.

32. a kind of resource allocation methods characterized by comprising

Base station is terminal distribution uplink channel resources, and the uplink channel resources are true by the codebook parameter institute that base station configures for terminal Fixed, the uplink channel resources include being used for transmission the first area of the first CSI information and being used for transmission the second of user data Region；

When the value of RI is greater than 1 in CSI information, the base station receives terminal and is believed by the first CSI that the first area is sent Breath and the 2nd CSI information that sends on the second region of terminal is received, and then by the first CSI information and described second CSI information merges to obtain complete CSI information；

Wherein, the first CSI information is the order 1CSI information in the CSI information, and the 2nd CSI information is the CSI The remaining CSI information of order 1CSI information is removed in information.

33. method as claimed in claim 32, which is characterized in that the order 1CSI information includes the RI, construction order rank Content required for pre-coding matrix for 1 and the corresponding channel quality indicator (CQI) of a code word codeword；And if institute It states terminal to need that CSI-RS resource is reported to indicate CRI, the order 1CSI information further includes CRI.

34. method as claimed in claim 33, which is characterized in that required for the pre-coding matrix that the construction order rank is 1 Content include:

Most strong coefficient, the PMI of the beam selection in twiddle factor, PMI in pre-coding matrix instruction PMI, the first layer in PMI In the band amplitude of first layer, the subband phase of the subband amplitude of first layer in PMI and the first layer in PMI.

35. method as claimed in claim 32, which is characterized in that the residue CSI information include in PMI the second layer to RI The most strong coefficient of layer, the band amplitude of the second layer to RI layers in PMI, the subband amplitude of the second layer to RI layers in PMI, The subband phase of the second layer to RI layers and extra code word codeword correspond to CQI in PMI.

36. method as claimed in claim 32, which is characterized in that when the value of the RI is 1, the first CSI information is The complete CSI information, comprising:

The base station receives the first CSI information that terminal is sent by the first area, and then passes through the first CSI The complete CSI information of information acquisition.

37. a kind of terminal, comprising:

Computing unit, the codebook parameter for using base station to configure calculates channel state information CSI, and obtains CSI information, described It include order instruction RI in CSI information；

Acquiring unit, for obtaining the uplink channel resources that the base station is the terminal distribution, the uplink channel resources packet The second area for including the first area for being used for transmission the first CSI information and being used for transmission user data；

First transmission unit, when being greater than 1 for the value in the RI, using the order 1CSI information in the CSI information as described in First CSI information is simultaneously sent to the base station by the first area；By portion of user data to be transmitted in second area It is substituted for the 2nd CSI information, is sent to the base station will pass through the second area for the 2nd CSI information, and then make The base station after receiving the first CSI information and the 2nd CSI information, can by the first CSI information and The 2nd CSI information merges the complete CSI information of acquisition, wherein the 2nd CSI information is CSI letter The remaining CSI information of order 1CSI information is removed in breath.

38. terminal as claimed in claim 37, which is characterized in that the order 1CSI information includes the RI, constructs order rank Content required for pre-coding matrix for 1 and the corresponding channel quality indicator (CQI) of a code word codeword, and if institute It states terminal to need that CSI-RS resource is reported to indicate CRI, the order 1CSI information further includes CRI.

39. terminal as claimed in claim 38, which is characterized in that required for the pre-coding matrix that the construction order rank is 1 Content include:

40. terminal as claimed in claim 39 characterized by comprising

First coding unit, for when the order 1CSI information includes CRI, by the CRI, the RI and the PMI the One layer of band amplitude combined coding, and most by first layer in beam selection in twiddle factor in the PMI, PMI, PMI The subband amplitude of first layer in strong coefficient, PMI, in PMI after the subband phase of first layer and the CQI combined coding by described First area is sent to the base station.

41. terminal as claimed in claim 37, which is characterized in that the residue CSI information include in PMI the second layer to RI The most strong coefficient of layer, the band amplitude of the second layer to RI layers in PMI, the subband amplitude of the second layer to RI layers in PMI, The subband phase of the second layer to RI layers and extra code word codeword correspond to CQI in PMI.

42. terminal as claimed in claim 41 characterized by comprising

Second coding unit, for by the band amplitude absolute coding of the second layer to RI layers in the PMI, by PMI second The most strong coefficient of layer to RI layers, the subband amplitude of the second layer to RI layers in PMI, in PMI the second layer to RI layers son Band phase and extra code word codeword correspond to CQI combined coding as the 2nd CSI information, pass through the second area It is sent to the base station.

43. the terminal as described in claim 37, which is characterized in that when the value of the RI is 1, comprising:

Second transmission unit, for being sent to institute by the first area using the CSI information as the first CSI information Base station is stated, so that the base station receives the complete CSI information by the first CSI information.

44. a kind of base station equipment characterized by comprising

Distribution module, for being terminal distribution uplink channel resources, the uplink channel resources are by the code that base station is that terminal configures This parameter is determined that the uplink channel resources include being used for transmission the first area of the first CSI information and being used for transmission user The second area of data；

First receiving module, when the value for the RI in CSI information is greater than 1, the base station receives terminal and passes through firstth area The first CSI information and receive the 2nd CSI information that sends on the second region of terminal that domain is sent, and then by described first CSI information and the 2nd CSI information merge to obtain complete CSI information；

45. base station equipment as claimed in claim 44, which is characterized in that the order 1CSI information includes the RI, construction order Content and the corresponding channel quality indicator (CQI) of a code word codeword required for the pre-coding matrix that rank is 1；And If the terminal needs that CSI-RS resource is reported to indicate CRI, the order 1CSI information further includes CRI.

46. base station equipment as claimed in claim 45, which is characterized in that the order rank that constructs is 1 pre-coding matrix institute The content needed includes:

47. base station equipment as claimed in claim 44, which is characterized in that the residue CSI information includes that the second layer is extremely in PMI The subband width of the band amplitude of the second layer to RI layers in RI layers of most strong coefficient, PMI, the second layer to RI layers in PMI The subband phase of the second layer to RI layers and extra code word codeword correspond to CQI in degree, PMI.

48. base station equipment as claimed in claim 44, which is characterized in that when the value of the RI is 1, the first CSI letter Breath is the complete CSI information, comprising:

Second receiving module, the first CSI information sent for receiving terminal by the first area, and then pass through institute State the first CSI information acquisition completely CSI information.