CN103580779B - Channel quality instruction information reporting and determining method and equipment - Google Patents

Channel quality instruction information reporting and determining method and equipment Download PDF

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Publication number
CN103580779B
CN103580779B CN201210254684.9A CN201210254684A CN103580779B CN 103580779 B CN103580779 B CN 103580779B CN 201210254684 A CN201210254684 A CN 201210254684A CN 103580779 B CN103580779 B CN 103580779B
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channel condition
condition information
information process
cqi
channel
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CN103580779A (en
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倪浩
高秋彬
彭莹
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0093—Point-to-multipoint

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a channel quality instruction CQI information reporting and determining method and equipment for multipoint cooperation transmission and relates to the field of wireless communication, and the channel quality instruction CQI information reporting and determining method and equipment for multipoint cooperation transmission are used for saving the resources needed by reporting the CQI information. According to the method, a network side configures a plurality of channel state information processes for a user terminal, and configures difference CQI reference information for each channel state information process, the user terminal determines the difference CQI information corresponding to the channel state information processes according to the difference CQI reference information corresponding to the channel state information processes, carries the difference CQI information in the channel state information and reports the difference CQI information to the network side, and the network side determines the CQI information corresponding to the channel state information processes according to the difference CQI information corresponding to the channel state information processes and the difference CQI reference information corresponding to the channel state information processes. The channel quality instruction CQI information reporting and determining method and equipment for multipoint cooperation transmission can save system resources.

Description

Channel quality indication (CQI) information reports and determines method and apparatus
Technical field
The present invention relates to wireless communication field, more particularly, to a kind of channel quality indication (CQI) information reports and determination method and setting Standby.
Background technology
Long Term Evolution strengthens in (long term evolution-advance, lte-a) system, covers to reduce cell The adjacent area interference at lid edge user terminal (ue), improves the experience of cell boundary user terminal, employs cooperative multipoint transmission (comp) technology.Cooperative multipoint transmission technology be on geographical position detached multiple transmission point (transmission point, Tp the cooperation between).Common, multiple transmission point refers to the base station of different districts, or the base station of a cell is controlled with it Multiple far-end radio-frequency apparatus (remote radio head, rrh).Cooperative multipoint transmission technology can be divided into down collaboration transmission and Up combine reception.Down collaboration multi-point is mainly divided into two kinds of transmission plans: cooperative scheduling/precoding again (coordinated scheduling/coordinated beamforming, cs/cb) and Combined Treatment (joint Processing, jp).In cs/cb transmission, one of multiple transmission point transfer point sends useful signal to user terminal, other Transfer point passes through combined dispatching and wave beam forming, reduces the interference to user terminal as far as possible.Combined Treatment scheme can be divided into again Joint transmission (joint transmission, jt) and dynamic transmission point selection (dynamic point selection, dps). In jt transmission, multiple transmission point sends useful signal to user terminal, thus enhancing the receipt signal of user terminal simultaneously.dps The transfer point of transmission switching at runtime user terminal, always selects the point transmission user optimum to user terminal from cooperation transmission point Terminal signaling.These cooperative multipoint transmission schemes can be combined with each other.Can be combined with (the dynamic that dynamically mourns in silence Blanking, db) scheme, some transfer points not sending signal is dynamically arranged on some running time-frequency resources.
In order to support cooperative multipoint transmission, the one or more downlink reference signal money for channel measurement of network configuration Source, such as non-zero power channel state information reference signals (non-zero power channel state information- Reference signal, nzp csi-rs) resource.User terminal utilizes the down channel measuring reference signals money of network configuration Source, can measure the down channel of each transmission point.Network also can be one or more according to the comp transmission plan configuration supported Downlink reference signal resource (interference measurement resource, imr) for interferometry, user is eventually End utilizes interferometry downlink reference signal, can measure the interference under one or more interference hypothesis.Define a channel shape State information process, a channel state information reference signals resource of map network configuration and interference hypothesis.User terminal According to the interference under the measurement each transfer point down channel and each interference hypothesis that obtain, it is possible to obtain each transmission point at one or Channel condition information under multiple interference hypothesis, including channel quality indication (CQI) information (channel quality indicator, cqi).As a kind of calculated examples of cqi are:
cqi k , m , n = q ( p k , m i k , n ) ;
Wherein, cqik,m,nRepresent cqi sequence number under interference hypothesis n for nzp csi-rs resource m on frequency band k, pk,mRepresent and use The downstream signal power that family terminal is measured with nzp csi-rs resource m in frequency range k, ik,nRepresent user terminal in frequency range k The jamming power of interference hypothesis n measuring, q () is cqi quantization function, frequency band k can be whole system frequency band it is also possible to It is certain subband of band system band.It should be noted that in said process, each transmission point corresponds to a reference signal resource, One or more physical transfer points may be comprised；Each interference hypothesis corresponds to an interferometry reference signal resource.With network As a example configuring 3 transfer points for ue, table 1 below gives the possible signal of cqi and interference hypothesis.
Table 1
As shown in table 1, compare in traditional single cell transmission, user terminal only needs to report the channel status of a point to believe Breath, cooperative multipoint transmission may need to report multiple transmission signals to assume and the channel condition information under interference hypothesis.Report out Pin is corresponding also to report expense much bigger than single cell transmission.Although network can be according to the transmission plan supported, only The downlink reference signal resource of user terminal configuration section and imr are to (hereinafter referred to as resource to), user terminal only report network The channel condition information of the resource pair of configuration, but cooperative multipoint transmission report expense to compare single cell transmission still significantly to increase Plus.
Channel condition information with based on Physical Uplink Control Channel (physical uplink control channel, Pucch periodic report) or be based on Physical Uplink Shared Channel (physical uplink shared channel, pusch) The mode that reports aperiodic reported.Network can configure a reporting source of channel state information mould for each channel condition information Formula.What different channel condition information possible configurations was different reports pattern, and these channel condition informations report pattern in different Inside report.Different channel condition informations is also possible to configuration identical and reports pattern, configures the identical channel status reporting pattern Information reports in same reporting in pattern.Include reporting pattern 1-0, report pattern 1-1, report based on the periodic report of pucch Pattern 2-0, report pattern 2-1.The pattern 1-1 of reporting also comprises subpattern 1 and subpattern 2, for transmission mode 9, base station 8 antenna The reporting source of channel state information of port.Above-mentioned pattern is reported to comprise reporting types 1,1a, reporting types 2,2a, 2b, 2c altogether, report Type 3, reporting types 4, reporting types 5 and reporting types 6, are used for reporting cqi, pre-coding matrix instruction (precoding Matrix indicator, pmi)/order instruction (rank indicator, ri), precoding type instruction (precoding type Indicator, pti) etc. reporting information.Include reporting pattern 1-2, report mould based on the non-periodic channel information reporting of pusch Formula 2-2, report pattern 3-0 and report pattern 3-1.
Report expense in order to reduce, in the reporting source of channel state information of single cell transmission, what part reported aperiodic reports Subband cqi in pattern reports, and employs subband difference cqi and reports.Report in pattern 3-1 as report aperiodic, each code 2-bit subband difference cqi of word, is the difference of the broadband cqi sequence number of subband cqi sequence number and corresponding code word；Report aperiodic is upper In report pattern 2-2,2-bit difference cqi of the m subband that the user of each code word selectes, is this m subband that user selectes The difference of the broadband cqi sequence number of cqi sequence number and corresponding code word.
What partial periodicity reported report the 2nd code word in pattern to employ space difference cqi reports.As periodic report Report in pattern 1-1, when reporting broadband cqi/pmi for the transmission mode in addition to the transmission mode 9 of 8 csi-rs ports, Or when the transmission mode 9 for 8 csi-rs ports reports broadband cqi/ 2pmi, or in the transmission for 8 csi-rs ports When pattern 9 reports broadband cqi/ 1pmi, if ri > 3-bit broadband spatial difference cqi of the 1, the 2nd code word is the width of the 1st code word The difference of the broadband cqi sequence number with cqi sequence number and the 2nd code word；The reporting in pattern 2-1, for except 8 csi-rs of periodic report When transmission mode outside the transmission mode 9 of port reports broadband cqi/pmi, or in the transmission mode 9 of 8 csi-rs ports During the pti=1 that report broadband cqi/ 2pmi and the last time report, or report broadband for the transmission mode 9 of 8 csi-rs ports During the pti=0 that cqi/ 2pmi and the last time report, if ri > 3-bit broadband spatial difference cqi of the 1, the 2nd code word is the The difference of the broadband cqi sequence number of the broadband cqi sequence number of 1 code word and the 2nd code word；The reporting in pattern 2-1 of periodic report, for except During the cqi of subband that the transmission mode report of user terminal outside the transmission mode 9 of 8 csi-rs ports selects, or it is 8 During the pti=1 that the transmission mode 9 of csi-rs port reports subband cqi/ 2pmi and the last time reports, if ri > the 1, the 2nd 3-bit subband spatial difference cqi of code word is the subband cqi sequence number with the 2nd code word for the subband cqi sequence number of the 1st code word Difference.
Difference cqi report method in single cell transmission, is the phase being reported based on same transfer point subband and broadband cqi Guan Xing, or the dependency being reported based on same transfer point difference code word cqi, calculate and report the side of difference between cqi sequence number Method.Because difference cqi can be reported using less bit number, therefore reduce and report expense.This difference cqi side of reporting Method can be used in the reporting source of channel state information of cooperative multipoint transmission.But cooperative multipoint transmission report expense relatively single The expense that reports of cell transmission dramatically increases, and the dependency only relying in a transfer point between cqi reports is carried out in cqi difference Report, the difference that can only realize part cqi of a transfer point reports, and the difference of such as subband cqi reports, or second code word cqi Difference report.The method, for coordinated multipoint transmission, saves the limited use reporting expense.
It can be seen that, existing difference cqi report method is subband cqi based on same transfer point and broadband cqi reports Dependency, or the dependency that the cqi of the different code words based on same transfer point reports.The part of a transfer point can only be realized The difference of cqi reports, and for coordinated multipoint transmission, saves the limited use reporting expense.
Content of the invention
The embodiment of the present invention provides a kind of cqi information reporting for coordinated multipoint transmission and determines method and apparatus, uses Report the resource needed for cqi information in saving.
A kind of channel quality instruction cqi information uploading method for coordinated multipoint transmission, the method includes:
User terminal receives the reference signal configuration information of multiple channel condition information processes, each letter that network side issues The information of the corresponding feedback model of channel state information process and each corresponding differential channel quality of channel condition information process Indicate cqi reference information, each difference cqi reference information is and one of the plurality of channel condition information process channel status The information that information process is associated；
User terminal determines to be needed in the plurality of channel condition information process to believe using the channel status that difference cqi reports Breath process, for each the channel condition information process determining, according to the reference signal configuration letter of this channel condition information process Breath and this channel condition information process corresponding difference cqi reference information, determine this corresponding difference of channel condition information process Divide cqi information；
User terminal, according to each corresponding feedback model of channel condition information process, is believed to network side reporting channel state Breath, comprises the difference cqi information determining in this channel condition information.
A kind of channel quality for coordinated multipoint transmission indicates the determination method of cqi information, and the method includes:
The lateral user terminal of network issues the reference signal configuration information of multiple channel condition information processes, each channel shape The information of the corresponding feedback model of state information process and each channel condition information process corresponding difference cqi reference information, Each difference cqi reference information is to be associated with one of the plurality of channel condition information process channel condition information process Information；
The channel condition information of network side receive user terminal to report, comprises using difference cqi in this channel condition information The channel condition information process corresponding difference cqi information reporting；
The channel condition information process corresponding difference cqi information that network side is reported using difference cqi for each, according to This channel condition information process corresponding difference cqi information and this corresponding difference cqi of channel condition information process are with reference to letter Breath, determines this channel condition information process corresponding cqi information.
A kind of user terminal, this user terminal includes:
Receiving unit, for receive multiple channel condition information processes that network side issues reference signal configuration information, The information of each corresponding feedback model of channel condition information process and each channel condition information process corresponding difference letter Road quality instruction cqi reference information, each difference cqi reference information is and one of the plurality of channel condition information process letter The information that channel state information process is associated；
Determining unit, for determining the channel needing in the plurality of channel condition information process to report using difference cqi Status information process, for each the channel condition information process determining, according to the reference signal of this channel condition information process Configuration information and this channel condition information process corresponding difference cqi reference information, determine this channel condition information process pair The difference cqi information answered；
Feedback unit, for according to each corresponding feedback model of channel condition information process, to network side reporting channel Status information, comprises the difference cqi information determining in this channel condition information.
A kind of base station, this base station includes:
Transmitting element, for issuing the reference signal configuration information of multiple channel condition information processes, every to user terminal The information of the corresponding feedback model of individual channel condition information process and each corresponding difference cqi of channel condition information process Reference information, each difference cqi reference information is to enter with one of the plurality of channel condition information process channel condition information The information that journey is associated；
Receiving unit, for the channel condition information of receive user terminal to report, comprises in this channel condition information to adopt The channel condition information process corresponding difference cqi information that difference cqi reports；
Determining unit, for the channel condition information process corresponding difference cqi letter being reported using difference cqi for each Breath, according to this channel condition information process corresponding difference cqi information and this corresponding difference cqi of channel condition information process Reference information, determines this channel condition information process corresponding cqi information.
In scheme provided in an embodiment of the present invention, the lateral user terminal of network configures multiple channel condition information processes, and Difference cqi reference information is configured to each channel condition information process, user terminal is corresponding according to channel condition information process Difference cqi reference information determines this channel condition information process corresponding difference cqi information, and difference cqi information is carried Network side is reported, network side according to channel condition information process corresponding difference cqi information and is somebody's turn to do in channel condition information Channel condition information process corresponding difference cqi reference information, determines this channel condition information process corresponding cqi information.By It is less than, in the bit number that difference cqi information takies, the bit number that non-differential cqi information takies, therefore report difference cqi information institute The resource overhead needing is less, thus saving system resource.
Brief description
Fig. 1 is method flow schematic diagram provided in an embodiment of the present invention；
Fig. 2 is other method schematic flow sheet provided in an embodiment of the present invention；
Fig. 3 is device structure schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another device structure schematic diagram provided in an embodiment of the present invention.
Specific embodiment
In coordinated multipoint transmission, the cqi of multiple channel condition information processes reports and there is also dependency.For example, in table 1 Cqi1, cqi2, cqi3 and cqi4 have identical signal hypothesis, and wherein cqi3 comprises the interference of tp2 and tp3, and cqi1 comprises tp2 Interference do not comprise the interference of tp3；Cqi2 does not comprise the interference that the interference of tp2 comprises tp3；Cqi4 does not comprise the dry of tp2 and tp3 Disturb.Without loss of generality it can be assumed that for user terminal tp2 jamming power be better than tp3 jamming power.But tp2 and tp3 Jamming power between difference, by measuring assembly transmission point selection thresholding limited.Simultaneously as tp3 is measurement collection Point the weakest is disturbed, the ratio that the interference of tp3 accounts in total interference is less in conjunction.Between therefore cqi3 and cqi1, cqi1 and Degree of association between cqi2, between cqi2 and cqi4 is higher.The present invention is according to channel condition informations multiple in cooperative multipoint transmission The dependency that the cqi of process reports is it is proposed that a kind of channel state information reporting method for coordinated multipoint transmission and cqi believe The determination method of breath.
Referring to Fig. 1, provided in an embodiment of the present invention for end side for coordinated multipoint transmission cqi information reporting side Method, comprises the following steps:
Step 10: user terminal receives the reference signal configuration letter of multiple channel condition information processes that network side issues Breath, the information of each corresponding feedback model of channel condition information process and each corresponding difference of channel condition information process Divide cqi reference information, each difference cqi reference information is and one of the plurality of channel condition information process channel status letter The information that breath process is associated；
Here, each channel condition information process is a channel state information reference signals resource with a transfer point The corresponding process with interference hypothesis, accordingly, it is right that the reference signal configuration information of each channel condition information process includes Transfer point is answered to send the downlink reference signal for channel measurement (as nzp csi-rs) i.e. down channel measurement to user terminal The resource information that reference signal is used and corresponding transfer point send the descending reference letter for interferometry to user terminal Number resource information that i.e. interferometry downlink reference signal is used.User terminal can send down channel measurement with reference to letter Carry out channel measurement and calculating in the resource of number resource information being used instruction, obtain downstream signal power, user terminal can To carry out interferometry and calculating in the resource sending the resource information instruction that interferometry downlink reference signal is used, obtain To jamming power, and then the formula according to background sectionIt is calculated channel condition information process Corresponding cqi sequence number.
Step 11: user terminal determines the channel shape needing in multiple channel condition information processes to report using difference cqi State information process, for each the channel condition information process determining, joins according to the reference signal of this channel condition information process Confidence breath and this channel condition information process corresponding difference cqi reference information, determine that this channel condition information process corresponds to Difference cqi information, this difference cqi information is the corresponding cqi of this channel condition information process, with respect to this channel condition information The side-play amount of the corresponding cqi of channel condition information process associated by process corresponding difference cqi reference information；
Step 12: user terminal, according to each corresponding feedback model of channel condition information process, is notified on network side Channel state information, comprises the difference cqi information determining in this channel condition information.
Specifically, in step 11, user terminal determines in multiple channel condition information processes to be needed to report using difference cqi Channel condition information process, implement and can be such that user terminal for each in multiple channel condition information processes Channel condition information process a, judges this channel condition information process a, with this channel condition information process corresponding difference cqi ginseng Examine channel condition information process b that information is associated, if for same process, if it is determined that this channel condition information process a It is not required to the channel condition information process reporting using difference cqi, otherwise, it determines this channel condition information process a is needs The channel condition information process being reported using difference cqi.
Specifically, the reference signal configuration information according to this channel condition information process and this channel condition information process Corresponding difference cqi reference information, determines this channel condition information process corresponding difference cqi information, and implementing can be as Under:
The numbering setting this channel condition information process is as i, the corresponding difference cqi reference of this channel condition information process i The numbering of the channel condition information process that information is associated is j；
Determine that this channel condition information process i corresponds to according to the reference signal configuration information of this channel condition information process i Cqi sequence number, determine that channel condition information process j is corresponding according to the reference signal configuration information of channel condition information process j Cqi sequence number；
According to this channel condition information process i corresponding cqi sequence number and channel condition information process j corresponding cqi sequence Number, determine this channel condition information process i corresponding difference cqi information.
Specifically, corresponded to according to this channel condition information process i corresponding cqi sequence number and channel condition information process j Cqi sequence number, determine this channel condition information process i corresponding difference cqi information, implement and can be such that
If the ri of channel condition information process i is identical with the ri of channel condition information process j, true according to equation below one Determine the broadband cqi information of channel condition information process i:
Formula one: broadband cqi information=channel condition information process j of code word c of channel condition information process i The broadband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i of code word c, wherein c ∈ { 0,1 }；Or,
If the ri of channel condition information process i is differed with the ri of channel condition information process j, according to equation below two Determine the broadband cqi information of channel condition information process i:
Formula two: broadband cqi information=channel condition information process j of code word c of channel condition information process i The broadband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i of code word 0, wherein c ∈ { 0,1 }.
Further, when the ri of channel condition information process i is identical with the ri of channel condition information process j, if according to The corresponding feedback model of channel condition information process i determines the subband cqi information needing reporting status information of channel process i, then Subband difference cqi information according to equation below three determination channel condition information process i:
Formula three: the code word of subband difference cqi information=channel condition information process j of code word c of channel condition information i The subband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i of c, wherein c ∈ { 0,1 }.
Further, when the ri of channel condition information process i is differed with the ri of channel condition information process j, if root It is believed that the corresponding feedback model of channel state information process i determines the subband cqi information needing reporting status information of channel process i, Then according to the subband difference cqi information of equation below four determination channel condition information process i:
Formula four: the code word of subband difference cqi information=channel condition information process j of code word c of channel condition information i The subband cqi sequence number of 0 code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
In step 11, believe for not needing the channel status reporting using difference cqi in multiple channel condition information processes Breath process, user terminal, according to prior art, calculates this channel shape according to this corresponding feedback model of channel condition information process State information process corresponding cqi information.Accordingly, in step 12 user terminal in the channel condition information reporting to network side Comprise each channel condition information process corresponding cqi information in multiple channel condition information processes, wherein, for need adopt The channel condition information process that difference cqi reports, comprises the respective channel determining in step 11 in the channel condition information reporting Status information process corresponding difference cqi information, for not needing the channel condition information process that reports using difference cqi, on Comprise in the channel condition information of report to believe according to the corresponding cqi of prior art calculated respective channel status information process Breath.Certainly, the information such as pmi, ri can also be comprised in the channel condition information reporting.
In this method, each difference cqi reference information is one of multiple channel condition information processes channel condition information The index of process, or the index of the corresponding feedback model of channel condition information process.
Referring to Fig. 2, provided in an embodiment of the present invention for network side for the cqi information of coordinated multipoint transmission determination Method, comprises the following steps:
Step 20: the lateral user terminal of network issues the reference signal configuration information of multiple channel condition information processes, every The information of the corresponding feedback model of individual channel condition information process and each corresponding difference cqi of channel condition information process Reference information, each difference cqi reference information is to enter with one of the plurality of channel condition information process channel condition information The information that journey is associated；
Here, for needing channel condition information process i that reports using difference cqi, this channel shape that network side issues Channel condition information process j associated by state information process i corresponding difference cqi reference information and channel condition information process i It is not same process；For not needing channel condition information process i that reports using difference cqi, this channel that network side issues Channel condition information process j associated by status information process i corresponding difference cqi reference information and channel condition information process I is same process.
Step 21: the channel condition information of network side receive user terminal to report, comprise multiple in this channel condition information The channel condition information process corresponding difference cqi information being reported using difference cqi in channel condition information process；Certainly, Comprise the channel condition information process corresponding cqi information not reported using difference cqi；
Step 22: the channel condition information process corresponding difference cqi letter that network side is reported using difference cqi for each Breath, according to this channel condition information process corresponding difference cqi information and this corresponding difference cqi of channel condition information process Reference information, determines this channel condition information process corresponding cqi information.
Specifically, in step 22, network side is according to this channel condition information process corresponding difference cqi information and this letter Channel state information process corresponding difference cqi reference information, determines this channel condition information process corresponding cqi information, specifically Realization can be such that
The numbering setting this channel condition information process is as i, the corresponding difference cqi reference of this channel condition information process i The numbering of the channel condition information process that information is associated is j；
Corresponded to according to this channel condition information process i corresponding difference cqi information and this channel condition information process i Difference cqi reference information be associated the cqi sequence number corresponding to channel condition information process j, determine this channel condition information Process i corresponding cqi information.
Specifically, entered according to this channel condition information process i corresponding difference cqi information and this channel condition information The cqi sequence number corresponding to channel condition information process j that journey i corresponding difference cqi reference information is associated, determines this channel shape State information process i corresponding cqi information, implements and can be such that
If order instruction ri of channel condition information process i is identical with the ri of channel condition information process j, according to following public affairs The broadband cqi sequence number of formula five determination channel condition information process i:
Formula five: the code word of broadband cqi sequence number=channel condition information process j of code word c of channel condition information process i The broadband cqi, wherein c ∈ { 0,1 } of code word c of broadband cqi sequence number channel condition information process i of c；Or,
If the ri of channel condition information process i is differed with the ri of channel condition information process j, according to equation below six Determine the broadband cqi sequence number of channel condition information process i:
Formula six: the code word of broadband cqi sequence number=channel condition information process j of code word c of channel condition information process i The broadband cqi, wherein c ∈ { 0,1 } of 0 code word c of broadband cqi sequence number channel condition information process i.
Further, when the ri of channel condition information process i is identical with the ri of channel condition information process j, if reporting Channel condition information in comprise the subband difference cqi information of channel condition information process i, then determine letter according to equation below seven The subband cqi sequence number of channel state information process i:
Formula seven: the code word of subband cqi sequence number=channel condition information process j of code word c of channel condition information process i Subband difference cqi of code word c of broadband cqi sequence number channel condition information process i of c, wherein c ∈ { 0,1 }.
Further, when the ri of channel condition information process i is differed with the ri of channel condition information process j, if on Comprise the subband difference cqi information of channel condition information process i in the channel condition information of report, then determine according to equation below eight The subband cqi sequence number of channel condition information process i:
Formula eight: the code word of subband cqi sequence number=channel condition information process j of code word c of channel condition information process i Subband difference cqi of 0 code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
In step 22, network side is for the letter not reported using difference cqi comprising in the channel condition information receiving Channel state information process corresponding cqi information, according to prior art, according to this corresponding feedback model of channel condition information process Determine this channel condition information process corresponding cqi information.
In this method, each difference cqi reference information is one of multiple channel condition information processes channel condition information The index of process, or the index of the corresponding feedback model of channel condition information process.
The executive agent of this method can be any network equipments such as a transfer point of base station or terminal.
Embodiment:
There are 3 transfer points tp1, tp2, tp3 in the measuring assembly assuming certain user terminal, need to configure 3 to user terminal Individual channel condition information process；
Step one: network to user terminal issue the reference signal configuration information of each channel condition information process, each The information of the corresponding feedback model of channel condition information process and each channel condition information process corresponding difference cqi ginseng Examine information；
The information specifically issuing is as shown in table 2:
Table 2
Step 2: after user terminal receives the information that network side issues, according to the reference of each channel condition information process Signal configuration information carries out channel and the measurement disturbed and calculating, obtains the corresponding cqi sequence number of respective channel status information process； Determine the channel condition information process that reports using difference cqi of needing, for each the channel condition information process determining, according to This channel condition information process corresponding cqi sequence number and this channel condition information process corresponding difference cqi reference information phase The channel condition information process corresponding cqi sequence number of association, determines this channel condition information process corresponding difference cqi information； Specific as follows:
The order of the channel condition information process 1 of user terminal is 1, and the order of channel condition information process 2 depends on channel shape The order of state information process 1, the therefore order of channel condition information process 2 are also 1.The order of channel condition information process 3 is 2；
User terminal checks the difference cqi reference information of channel condition information process 1, is channel condition information process index 1, identical with the channel condition information process of current channel condition information process 1 index 1 it is not necessary to according to method of the present invention meter Calculate the difference cqi information of channel condition information process 1.
User terminal checks the difference cqi reference information of channel condition information process 2, is channel condition information process index 1, different from the channel condition information process index 2 of current channel condition information process 2.Channel condition information process 2 and channel The order of status information process 1 is identical, all for 1, the broadband cqi of the user terminal code word 0 according to channel condition information process 1 respectively Sequence number, calculates the difference cqi information of the code word 0 of channel condition information process 2, as follows:
The code word 0 of broadband cqi information=channel condition information information 1 of the code word 0 of channel condition information process 2 The broadband cqi sequence number of the code word 0 of broadband cqi sequence number channel condition information information 2；
If being determined according to the corresponding feedback model of channel condition information process 2 needs reporting status information of channel process 2 Subband cqi information, then as follows calculate channel condition information process 2 subband difference cqi information:
The code word 0 of subband difference cqi information=channel condition information process 1 of the code word 0 of channel condition information process 2 The subband cqi sequence number of the code word 0 of broadband cqi sequence number channel condition information process 2；
User terminal checks the difference cqi reference information of channel condition information process 3, is channel condition information process index 2, different from the channel condition information process index 3 of current channel condition information process 3.The order of channel condition information process 3 is 2, different from channel condition information process 2, user terminal according to the broadband cqi sequence number of the code word 0 of channel condition information process 2, Calculate the broadband cqi information of channel condition information process 3, as follows:
The code word 0 of broadband cqi information=channel condition information process 2 of the code word 0 of channel condition information process 3 The broadband cqi sequence number of the code word 0 of broadband cqi sequence number channel condition information process 3；
The code word 0 of broadband cqi information=channel condition information process 2 of the code word 1 of channel condition information process 3 The broadband cqi sequence number of the code word 1 of broadband cqi sequence number channel condition information process 3；
If being determined according to the corresponding feedback model of channel condition information process 3 needs reporting status information of channel process 3 Subband cqi information, then as follows calculate channel condition information process 3 subband difference cqi information:
The code word 0 of subband difference cqi information=channel condition information process 2 of the code word 0 of channel condition information process 3 The subband cqi sequence number of the code word 0 of broadband cqi sequence number channel condition information process 3；
The broadband of the code word 0 of subband difference cqi=channel condition information process 2 of the code word 1 of channel condition information process 3 The subband cqi sequence number of the code word 1 of cqi sequence number channel condition information process 3；
Step 3: according to each corresponding feedback model of channel condition information process, to network side reporting channel state letter Breath, comprises the difference cqi information determining in this channel condition information, specifically include channel condition information process 1 corresponding cqi letter Breath, the corresponding difference cqi information of channel condition information process 2 and the corresponding difference cqi information of channel condition information process 3, real Now as follows:
User terminal uses the corresponding difference cqi information of channel condition information process 2 to replace in channel condition information process 2 Cqi sequence number, and reported according to the pattern that reports of network configuration.User terminal uses the difference of channel condition information process 3 Cqi information is divided to replace the cqi sequence number in the channel condition information of channel condition information process 3, and reporting according to network configuration Pattern is reported.
Step 4: the channel condition information of network side receive user terminal to report, comprise in this channel condition information to adopt The channel condition information process corresponding difference cqi information that difference cqi reports；The channel that each is reported using difference cqi Status information process corresponding difference cqi information, according to this channel condition information process corresponding difference cqi information and this letter Channel state information process corresponding difference cqi reference information, determines this channel condition information process corresponding cqi information, specifically As follows:
Channel condition information process 1 is comprised corresponding in the channel condition information that the user terminal that network side receives reports Cqi sequence number, the corresponding difference cqi information of channel condition information process 2 and channel condition information process 3 corresponding difference cqi letter Breath, according to difference cqi reference information, calculates channel condition information process 2 and the corresponding cqi information of channel condition information process 3.
The broadband cqi sequence number of the code word 0 first according to channel condition information process 1 for the network side, calculates channel condition information The broadband of the code word 0 of process 2:
The broadband of the code word 0 of broadband cqi sequence number=channel condition information process 1 of the code word 0 of channel condition information process 2 The broadband cqi information of the code word 0 of cqi sequence number channel condition information process 2；
If comprising the subband difference cqi information of channel condition information process 2 in the channel condition information reporting, according to such as Under type determines the subband cqi information of channel condition information process 2:
The broadband of the code word 0 of subband cqi sequence number=channel condition information process 1 of the code word 0 of channel condition information process 2 The subband difference cqi information of the code word 0 of cqi sequence number channel condition information process 2；
The broadband cqi sequence number of the code word 0 further according to calculated channel condition information process 2 for the network side, calculates channel The broadband cqi of status information process 3 or subband cqi information:
The broadband of the code word 0 of broadband cqi sequence number=channel condition information process 2 of the code word 0 of channel condition information process 3 The broadband cqi information of the code word 0 of cqi sequence number channel condition information process 3；
The broadband of the code word 0 of broadband cqi sequence number=channel condition information process 2 of the code word 1 of channel condition information process 3 The broadband cqi information of the code word 1 of cqi sequence number channel condition information process 3；
If comprising the subband difference cqi information of channel condition information process 3 in the channel condition information reporting, according to such as Under type determines the subband cqi information of channel condition information process 3:
The broadband of the code word 0 of subband cqi sequence number=channel condition information process 2 of the code word 0 of channel condition information process 3 The subband difference cqi information of the code word 0 of cqi sequence number channel condition information process 3；
The broadband of the code word 0 of subband cqi sequence number=channel condition information process 2 of the code word 1 of channel condition information process 3 The subband difference cqi information of the code word 1 of cqi sequence number channel condition information process 3.
Referring to Fig. 3, the embodiment of the present invention is supplied to a kind of user terminal, and this user terminal includes:
Receiving unit 30, the reference signal configuration for receiving multiple channel condition information processes that network side issues is believed Breath, the information of each corresponding feedback model of channel condition information process and each corresponding difference of channel condition information process Divide channel quality instruction cqi reference information, each difference cqi reference information is and in the plurality of channel condition information process The information that individual channel condition information process is associated；
Determining unit 31, for determining the letter needing in the plurality of channel condition information process to report using difference cqi Channel state information process, for each the channel condition information process determining, according to the reference letter of this channel condition information process Number configuration information and this channel condition information process corresponding difference cqi reference information, determine this channel condition information process Corresponding difference cqi information；
Feedback unit 32, for according to each corresponding feedback model of channel condition information process, notifying on network side Channel state information, comprises the difference cqi information determining in this channel condition information.
Further, described determining unit 31 is used for: determines the plurality of channel condition information process as follows The middle channel condition information process needing to report using difference cqi:
For each channel condition information process a in the plurality of channel condition information process, judge this channel status Information process a, channel condition information process b being associated with this channel condition information process corresponding difference cqi reference information, Whether it is same process, if it is determined that this channel condition information process a is not required to the channel shape reporting using difference cqi State information process, otherwise, it determines this channel condition information process a is to need to enter using the channel condition information that difference cqi reports Journey.
Further, described determining unit 31 is used for: determines that this channel condition information process is corresponding as follows Difference cqi information:
The numbering of this channel condition information process is i, this channel condition information process i corresponding difference cqi reference information The numbering of associated channel condition information process is j；
Determine that this channel condition information process i corresponds to according to the reference signal configuration information of this channel condition information process i Cqi sequence number, determine that channel condition information process j is corresponding according to the reference signal configuration information of channel condition information process j Cqi sequence number；
According to this channel condition information process i corresponding cqi sequence number and channel condition information process j corresponding cqi sequence Number, determine this channel condition information process i corresponding difference cqi information.
Further, described determining unit 31 is used for: determines that this channel condition information process i is corresponding as follows Difference cqi information:
If order instruction ri of channel condition information process i is identical with the ri of channel condition information process j, according to following public affairs The broadband cqi information of formula one determination channel condition information process i:
Formula one: broadband cqi information=channel condition information process j of code word c of channel condition information process i The broadband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i of code word c, wherein c ∈ { 0,1 }；Or,
If the ri of channel condition information process i is differed with the ri of channel condition information process j, according to equation below two Determine the broadband cqi information of channel condition information process i:
Formula two: broadband cqi information=channel condition information process j of code word c of channel condition information process i The broadband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i of code word 0, wherein c ∈ { 0,1 }.
Further, described determining unit 31 is additionally operable to:
When the ri of channel condition information process i is identical with the ri of channel condition information process j, if being believed according to channel status The corresponding feedback model of breath process i determines the subband cqi information needing reporting status information of channel process i, then according to following public affairs The subband difference cqi information of formula three determination channel condition information process i:
Formula three: the code word of subband difference cqi information=channel condition information process j of code word c of channel condition information i The subband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i of c, wherein c ∈ { 0,1 }.
Further, described determining unit 31 is additionally operable to:
When the ri of channel condition information process i is differed with the ri of channel condition information process j, if according to channel status The corresponding feedback model of information process i determines the subband cqi information needing reporting status information of channel process i, then according to as follows The subband difference cqi information of formula four determination channel condition information process i:
Formula four: the code word of subband difference cqi information=channel condition information process j of code word c of channel condition information i The subband cqi sequence number of 0 code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
Further, each difference cqi reference information is one of the plurality of channel condition information process channel status The index of information process, or the index of the corresponding feedback model of channel condition information process.
Referring to Fig. 4, the embodiment of the present invention provides a kind of base station, and this base station includes:
Transmitting element 40, for issue to user terminal multiple channel condition information processes reference signal configuration information, The information of each corresponding feedback model of channel condition information process and each corresponding difference of channel condition information process Cqi reference information, each difference cqi reference information is and one of the plurality of channel condition information process channel condition information The information that process is associated；
Receiving unit 41, for the channel condition information of receive user terminal to report, comprises to adopt in this channel condition information The channel condition information process corresponding difference cqi information being reported with difference cqi；
Determining unit 42, for corresponding difference cqi of channel condition information process being reported using difference cqi for each Information, according to this channel condition information process corresponding difference cqi information and this corresponding difference of channel condition information process Cqi reference information, determines this channel condition information process corresponding cqi information.
Further, described determining unit 42 is used for: determines that this channel condition information process is corresponding as follows Cqi information:
The numbering of this channel condition information process is i, this channel condition information process i corresponding difference cqi reference information The numbering of associated channel condition information process is j；
Corresponded to according to this channel condition information process i corresponding difference cqi information and this channel condition information process i Difference cqi reference information be associated the cqi sequence number corresponding to channel condition information process j, determine this channel condition information Process i corresponding cqi information.
Further, described determining unit 42 is used for: determines that this channel condition information process i is corresponding as follows Cqi information:
If order instruction ri of channel condition information process i is identical with the ri of channel condition information process j, according to following public affairs The broadband cqi sequence number of formula five determination channel condition information process i:
Formula five: the code word of broadband cqi sequence number=channel condition information process j of code word c of channel condition information process i The broadband cqi, wherein c ∈ { 0,1 } of code word c of broadband cqi sequence number channel condition information process i of c；Or,
If the ri of channel condition information process i is differed with the ri of channel condition information process j, according to equation below six Determine the broadband cqi sequence number of channel condition information process i:
Formula six: the code word of broadband cqi sequence number=channel condition information process j of code word c of channel condition information process i The broadband cqi, wherein c ∈ { 0,1 } of 0 code word c of broadband cqi sequence number channel condition information process i.
Further, described determining unit 42 is additionally operable to:
When the ri of channel condition information process i is identical with the ri of channel condition information process j, if the channel status reporting Comprise the subband difference cqi information of channel condition information process i in information, then determine channel condition information according to equation below seven The subband cqi sequence number of process i:
Formula seven: the code word of subband cqi sequence number=channel condition information process j of code word c of channel condition information process i Subband difference cqi of code word c of broadband cqi sequence number channel condition information process i of c, wherein c ∈ { 0,1 }.
Further, described determining unit 42 is additionally operable to:
When the ri of channel condition information process i is differed with the ri of channel condition information process j, if the channel shape reporting Comprise the subband difference cqi information of channel condition information process i in state information, then determine channel status letter according to equation below eight The subband cqi sequence number of breath process i:
Formula eight: the code word of subband cqi sequence number=channel condition information process j of code word c of channel condition information process i Subband difference cqi of 0 code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
Further, each difference cqi reference information is one of the plurality of channel condition information process channel status The index of information process, or the index of the corresponding feedback model of channel condition information process.
To sum up, the beneficial effect comprise that
In scheme provided in an embodiment of the present invention, during coordinated multipoint transmission, the lateral user terminal of network configures multiple channel shapes State information process, and difference cqi reference information is configured to each channel condition information process, user terminal is believed according to channel status Breath process corresponding difference cqi reference information determines this channel condition information process corresponding difference cqi information, and by difference Cqi information carries and reports network side in channel condition information, and network side is according to the corresponding difference of channel condition information process Cqi information and this channel condition information process corresponding difference cqi reference information, determine that this channel condition information process corresponds to Cqi information.Because the bit number that difference cqi information takies is less than the bit number that non-differential cqi information takies, therefore report difference Divide the resource overhead required for cqi information less, thus saving system resource.
The present invention is the flow process with reference to method according to embodiments of the present invention, equipment (system) and computer program Figure and/or block diagram are describing.It should be understood that can be by each stream in computer program instructions flowchart and/or block diagram Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor instructing general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device is to produce A raw machine is so that produced for reality by the instruction of computer or the computing device of other programmable data processing device The device of the function of specifying in present one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device with spy Determine in the computer-readable memory that mode works so that the instruction generation inclusion being stored in this computer-readable memory refers to Make the manufacture of device, this command device realize in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or The function of specifying in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that counting On calculation machine or other programmable devices, execution series of operation steps to be to produce computer implemented process, thus in computer or On other programmable devices, the instruction of execution is provided for realizing in one flow process of flow chart or multiple flow process and/or block diagram one The step of the function of specifying in individual square frame or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to including excellent Select embodiment and fall into being had altered and changing of the scope of the invention.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprise these changes and modification.

Claims (26)

1. a kind of channel quality instruction cqi information uploading method for coordinated multipoint transmission is it is characterised in that the method bag Include:
User terminal receives the reference signal configuration information of multiple channel condition information processes, each channel shape that network side issues The information of the corresponding feedback model of state information process and each channel condition information process corresponding difference cqi reference information, Each difference cqi reference information is to be associated with one of the plurality of channel condition information process channel condition information process Information；
User terminal determines in the plurality of channel condition information process to be needed to enter using the channel condition information that difference cqi reports Journey, for determine each channel condition information process, the reference signal configuration information according to this channel condition information process with And this channel condition information process corresponding difference cqi reference information, determine this corresponding difference cqi of channel condition information process Information；
User terminal according to each corresponding feedback model of channel condition information process, to network side reporting status information of channel, The difference cqi information determining is comprised in this channel condition information.
2. the method for claim 1 is it is characterised in that described user terminal determines that the plurality of channel condition information enters Need the channel condition information process reporting using difference cqi in journey, specifically include: user terminal is for the plurality of channel shape Each channel condition information process a in state information process, judges this channel condition information process a, with this channel condition information Channel condition information process b that process corresponding difference cqi reference information is associated, if for same process, if it is determined that This channel condition information process a is not required to the channel condition information process reporting using difference cqi, otherwise, it determines this channel Status information process a is the channel condition information process needing to report using difference cqi.
3. the method for claim 1 is it is characterised in that the described reference signal according to this channel condition information process is joined Confidence breath and this channel condition information process corresponding difference cqi reference information, determine that this channel condition information process corresponds to Difference cqi information, specifically include:
The numbering of this channel condition information process is i, and this channel condition information process i corresponding difference cqi reference information is related The numbering of the channel condition information process of connection is j；
The corresponding cqi of this channel condition information process i is determined according to the reference signal configuration information of this channel condition information process i Sequence number, determines channel condition information process j corresponding cqi sequence according to the reference signal configuration information of channel condition information process j Number；
According to this channel condition information process i corresponding cqi sequence number and channel condition information process j corresponding cqi sequence number, really Fixed this channel condition information process i corresponding difference cqi information.
4. method as claimed in claim 3 it is characterised in that described according to this channel condition information process i corresponding cqi sequence Number and channel condition information process j corresponding cqi sequence number, determine this corresponding difference cqi of channel condition information process i believe Breath, specifically includes:
If order instruction ri of channel condition information process i is identical with the ri of channel condition information process j, according to equation below one Determine the broadband cqi information of channel condition information process i:
Formula one: the code word of broadband cqi information=channel condition information process j of code word c of channel condition information process i The broadband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i of c, wherein c ∈ { 0,1 }；Or,
If the ri of channel condition information process i is differed with the ri of channel condition information process j, determine according to equation below two The broadband cqi information of channel condition information process i:
Formula two: the code word of broadband cqi information=channel condition information process j of code word c of channel condition information process i The broadband cqi sequence number of 0 code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
5. method as claimed in claim 4 is it is characterised in that in the ri of channel condition information process i and channel condition information When the ri of process j is identical, need reporting status information of channel if determining according to the corresponding feedback model of channel condition information process i The subband cqi information of process i, then according to the subband difference cqi information of equation below three determination channel condition information process i:
Formula three: code word c of subband difference cqi information=channel condition information process j of code word c of channel condition information i The subband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
6. method as claimed in claim 4 is it is characterised in that in the ri of channel condition information process i and channel condition information When the ri of process j differs, reporting channel state is needed to believe if being determined according to the corresponding feedback model of channel condition information process i The subband cqi information of breath process i, then according to the subband difference cqi information of equation below four determination channel condition information process i:
Formula four: the code word 0 of subband difference cqi information=channel condition information process j of code word c of channel condition information i The subband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
7. if described method arbitrary in claim 1-6 is it is characterised in that each difference cqi reference information is the plurality of letter The index of one of channel state information process channel condition information process, or the corresponding feedback of channel condition information process The index of pattern.
8. a kind of channel quality for coordinated multipoint transmission indicates the determination method of cqi information it is characterised in that the method bag Include:
The lateral user terminal of network issues the reference signal configuration information of multiple channel condition information processes, each channel status letter The information of the corresponding feedback model of breath process and each channel condition information process corresponding difference cqi reference information, each difference Cqi reference information is divided to be the letter being associated with one of the plurality of channel condition information process channel condition information process Breath；
The channel condition information of network side receive user terminal to report, comprises to report using difference cqi in this channel condition information Channel condition information process corresponding difference cqi information；
The channel condition information process corresponding difference cqi information that network side is reported using difference cqi for each, according to this letter Channel state information process corresponding difference cqi information and this channel condition information process corresponding difference cqi reference information, really Fixed this channel condition information process corresponding cqi information.
9. method as claimed in claim 8 it is characterised in that described according to this corresponding difference of channel condition information process Cqi information and this channel condition information process corresponding difference cqi reference information, determine that this channel condition information process corresponds to Cqi information, specifically include:
The numbering of this channel condition information process is i, and this channel condition information process i corresponding difference cqi reference information is related The numbering of the channel condition information process of connection is j；
According to this channel condition information process i corresponding difference cqi information and this corresponding difference of channel condition information process i The cqi sequence number corresponding to channel condition information process j dividing cqi reference information to be associated, determines this channel condition information process i Corresponding cqi information.
10. method as claimed in claim 9 it is characterised in that described according to this corresponding difference of channel condition information process i Channel condition information process j that cqi information and this channel condition information process i corresponding difference cqi reference information are associated Corresponding cqi sequence number, determines this channel condition information process i corresponding cqi information, specifically includes:
If order instruction ri of channel condition information process i is identical with the ri of channel condition information process j, according to equation below five Determine the broadband cqi sequence number of channel condition information process i:
Formula five: code word c of broadband cqi sequence number=channel condition information process j of code word c of channel condition information process i The broadband cqi of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }；Or,
If the ri of channel condition information process i is differed with the ri of channel condition information process j, determine according to equation below six The broadband cqi sequence number of channel condition information process i:
Formula six: the code word 0 of broadband cqi sequence number=channel condition information process j of code word c of channel condition information process i The broadband cqi of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
11. methods as claimed in claim 10 are it is characterised in that believe with channel status in the ri of channel condition information process i When the ri of breath process j is identical, if comprising the subband difference cqi letter of channel condition information process i in the channel condition information reporting Breath, then according to the subband cqi sequence number of equation below seven determination channel condition information process i:
Formula seven: code word c of subband cqi sequence number=channel condition information process j of code word c of channel condition information process i Subband difference cqi of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
12. methods as claimed in claim 10 are it is characterised in that believe with channel status in the ri of channel condition information process i When the ri of breath process j differs, if comprising subband difference cqi of channel condition information process i in the channel condition information reporting Information, then according to the subband cqi sequence number of equation below eight determination channel condition information process i:
Formula eight: the code word 0 of subband cqi sequence number=channel condition information process j of code word c of channel condition information process i Subband difference cqi of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
Arbitrary described method in 13. such as claim 8-12 is it is characterised in that each difference cqi reference information is the plurality of The index of one of channel condition information process channel condition information process, or a channel condition information process is corresponding anti- The index of feedback pattern.
A kind of 14. user terminals are it is characterised in that this user terminal includes:
Receiving unit, for receive multiple channel condition information processes that network side issues reference signal configuration information, each The information of the corresponding feedback model of channel condition information process and each channel condition information process corresponding differential channel matter Amount instruction cqi reference information, each difference cqi reference information is and one of the plurality of channel condition information process channel shape The information that state information process is associated；
Determining unit, for determining the channel status needing in the plurality of channel condition information process to report using difference cqi Information process, for each the channel condition information process determining, according to the reference signal configuration of this channel condition information process Information and this channel condition information process corresponding difference cqi reference information, determine that this channel condition information process is corresponding Difference cqi information；
Feedback unit, for according to each corresponding feedback model of channel condition information process, to network side reporting channel state Information, comprises the difference cqi information determining in this channel condition information.
15. user terminals as claimed in claim 14 are it is characterised in that described determining unit is used for: true as follows The channel condition information process reporting using difference cqi is needed in fixed the plurality of channel condition information process:
For each channel condition information process a in the plurality of channel condition information process, judge this channel condition information Process a, channel condition information process b being associated with this channel condition information process corresponding difference cqi reference information, if For same process, if it is determined that this channel condition information process a is not required to believe using the channel status that difference cqi reports Breath process, otherwise, it determines this channel condition information process a is the channel condition information process needing to report using difference cqi.
16. user terminals as claimed in claim 14 are it is characterised in that described determining unit is used for: true as follows Fixed this channel condition information process corresponding difference cqi information:
The numbering of this channel condition information process is i, and this channel condition information process i corresponding difference cqi reference information is related The numbering of the channel condition information process of connection is j；
The corresponding cqi of this channel condition information process i is determined according to the reference signal configuration information of this channel condition information process i Sequence number, determines channel condition information process j corresponding cqi sequence according to the reference signal configuration information of channel condition information process j Number；
According to this channel condition information process i corresponding cqi sequence number and channel condition information process j corresponding cqi sequence number, really Fixed this channel condition information process i corresponding difference cqi information.
17. user terminals as claimed in claim 16 are it is characterised in that described determining unit is used for: true as follows Fixed this channel condition information process i corresponding difference cqi information:
If order instruction ri of channel condition information process i is identical with the ri of channel condition information process j, according to equation below one Determine the broadband cqi information of channel condition information process i:
Formula one: the code word of broadband cqi information=channel condition information process j of code word c of channel condition information process i The broadband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i of c, wherein c ∈ { 0,1 }；Or,
If the ri of channel condition information process i is differed with the ri of channel condition information process j, determine according to equation below two The broadband cqi information of channel condition information process i:
Formula two: the code word of broadband cqi information=channel condition information process j of code word c of channel condition information process i The broadband cqi sequence number of 0 code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
18. user terminals as claimed in claim 17 are it is characterised in that described determining unit is additionally operable to:
When the ri of channel condition information process i is identical with the ri of channel condition information process j, if being entered according to channel condition information The corresponding feedback model of journey i determines the subband cqi information needing reporting status information of channel process i, then according to equation below three Determine the subband difference cqi information of channel condition information process i:
Formula three: code word c of subband difference cqi information=channel condition information process j of code word c of channel condition information i The subband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
19. user terminals as claimed in claim 17 are it is characterised in that described determining unit is additionally operable to:
When the ri of channel condition information process i is differed with the ri of channel condition information process j, if according to channel condition information The corresponding feedback model of process i determines the subband cqi information needing reporting status information of channel process i, then according to equation below The subband difference cqi information of four determination channel condition information processes i:
Formula four: the code word 0 of subband difference cqi information=channel condition information process j of code word c of channel condition information i The subband cqi sequence number of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
Arbitrary described user terminal in 20. such as claim 14-19 is it is characterised in that each difference cqi reference information is described The index of one of multiple channel condition information processes channel condition information process, or a channel condition information process correspondence Feedback model index.
A kind of 21. base stations are it is characterised in that this base station includes:
Transmitting element, for issuing reference signal configuration information, each letter of multiple channel condition information processes to user terminal The information of the corresponding feedback model of channel state information process and the corresponding difference cqi reference of each channel condition information process Information, each difference cqi reference information is and one of the plurality of channel condition information process channel condition information process phase The information of association；
Receiving unit, for the channel condition information of receive user terminal to report, comprises to adopt difference in this channel condition information The channel condition information process corresponding difference cqi information that cqi reports；
Determining unit, for the channel condition information process corresponding difference cqi information being reported using difference cqi for each, According to this channel condition information process corresponding difference cqi information and this channel condition information process corresponding difference cqi ginseng Examine information, determine this channel condition information process corresponding cqi information.
22. base stations as claimed in claim 21 are it is characterised in that described determining unit is used for: determining as follows should Channel condition information process corresponding cqi information:
The numbering of this channel condition information process is i, and this channel condition information process i corresponding difference cqi reference information is related The numbering of the channel condition information process of connection is j；
According to this channel condition information process i corresponding difference cqi information and this corresponding difference of channel condition information process i The cqi sequence number corresponding to channel condition information process j dividing cqi reference information to be associated, determines this channel condition information process i Corresponding cqi information.
23. base stations as claimed in claim 22 are it is characterised in that described determining unit is used for: determining as follows should Channel condition information process i corresponding cqi information:
If order instruction ri of channel condition information process i is identical with the ri of channel condition information process j, according to equation below five Determine the broadband cqi sequence number of channel condition information process i:
Formula five: code word c of broadband cqi sequence number=channel condition information process j of code word c of channel condition information process i The broadband cqi of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }；Or,
If the ri of channel condition information process i is differed with the ri of channel condition information process j, determine according to equation below six The broadband cqi sequence number of channel condition information process i:
Formula six: the code word 0 of broadband cqi sequence number=channel condition information process j of code word c of channel condition information process i The broadband cqi of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
24. base stations as claimed in claim 23 are it is characterised in that described determining unit is additionally operable to:
When the ri of channel condition information process i is identical with the ri of channel condition information process j, if the channel condition information reporting In comprise the subband difference cqi information of channel condition information process i, then determine channel condition information process according to equation below seven The subband cqi sequence number of i:
Formula seven: code word c of subband cqi sequence number=channel condition information process j of code word c of channel condition information process i Subband difference cqi of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
25. base stations as claimed in claim 23 are it is characterised in that described determining unit is additionally operable to:
When the ri of channel condition information process i is differed with the ri of channel condition information process j, if the channel status letter reporting Comprise the subband difference cqi information of channel condition information process i in breath, then determine that channel condition information enters according to equation below eight The subband cqi sequence number of journey i:
Formula eight: the code word 0 of subband cqi sequence number=channel condition information process j of code word c of channel condition information process i Subband difference cqi of code word c of broadband cqi sequence number channel condition information process i, wherein c ∈ { 0,1 }.
Arbitrary described base station in 26. such as claim 21-25 is it is characterised in that each difference cqi reference information is the plurality of The index of one of channel condition information process channel condition information process, or a channel condition information process is corresponding anti- The index of feedback pattern.
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