CN106559109A - A kind of channel condition information measurement feedback method and device - Google Patents

A kind of channel condition information measurement feedback method and device Download PDF

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Publication number
CN106559109A
CN106559109A CN201510751210.9A CN201510751210A CN106559109A CN 106559109 A CN106559109 A CN 106559109A CN 201510751210 A CN201510751210 A CN 201510751210A CN 106559109 A CN106559109 A CN 106559109A
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China
Prior art keywords
arrowband
measurement
csi
measurement interval
report
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Chinese (zh)
Inventor
张雯
夏树强
戴博
石靖
陈宪明
刘锟
方惠英
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of method and device of channel condition information measurement feedback, is applied to user terminal, the method includes：Determine measurement interval, report the moment, report pattern and measurement arrowband set；Channel condition information CSI measurements are carried out in the measurement interval to the arrowband in measurement arrowband set；Enter that line period CSI is reported or CSI aperiodic is reported.The present invention can make the less user terminal of support radio frequency bandwidth realize measurement and feedback to channel condition information.

Description

A kind of channel condition information measurement feedback method and device
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of measurement of channel condition information is instead Feedback method and apparatus.
Background technology
Machine type communication (Machine Type Communication, MTC) user terminal (User Equipment, UE), also known as machine to machine (Machine to Machine, M2M) user's end End, is the main Types of current internet-of-things terminal.
In recent years, due to Long Term Evolution (Long-Term Evolution, LTE)/senior long term evolution system The spectrum efficiency of system (Long-Term Evolution Advance, LTE-A) is higher, more and more Mobile operator selects LTE/LTE-A as the evolution tendency of system of broadband wireless communication.It is based on The MTC multiple types data service of LTE/LTE-A also will be more attractive.
MTC user terminals are typically the equipment of low cost, and which is general with single reception antenna, and supports Radio frequency (Radio Frequency, RF) bandwidth it is smaller, its RF sends and receives bandwidth and is generally 1.4MHz.Generally MTC user equipmenies can only at most receive 6 continuous physical Resource Block in a subframe Signal in (Physical Resource Block, PRB), that is, the signal in an arrowband is received, And the signal in whole system bandwidth (such as, 20MHz) can not be received simultaneously.
Accordingly, it would be desirable to a kind of suitable CSI measurements for supporting the less MTC user terminals of radio frequency bandwidth are anti- Feedback method.
The content of the invention
The technical problem to be solved is to provide a kind of method of channel condition information measurement feedback And device, can make the less user terminal of support radio frequency bandwidth realize the measurement to channel condition information and Feedback.
A kind of method of channel condition information measurement feedback is embodiments provided, user's end is applied to End, the method include：
Determine measurement interval, report the moment, report pattern and measurement arrowband set；
Channel condition information is carried out to the arrowband in measurement arrowband set in the measurement interval CSI is measured；
Enter that line period CSI is reported or CSI aperiodic is reported.
Alternatively, the measurement interval, report the moment, report pattern and measurement arrowband set in At least one be it is default, or evolution node B configuration.
Alternatively, the measurement interval includes one or more of following parameter：The length of measurement interval, The repetition period of measurement interval, the initial subframe position of measurement interval, last subframe of measurement interval Position and the subframe position of measurement interval；
Measurement arrowband set includes whole arrowbands or part arrowband in system bandwidth.
Alternatively, the determination measurement interval, including：
In the case of the measurement interval is default, the cell ID of the cell being located according to user terminal Or the mark of user terminal determines the measurement interval.
Alternatively, the determination reports the moment and reports pattern, including：
Entering in the case that line period CSI reports, determined according to measurement interval and described report the moment and report Pattern.
Alternatively, the determination measurement interval, including：
It is default in the measurement interval and enters in the case that line period CSI reports, according to reports the moment Determine the initial subframe position or last subframe position of measurement interval；According at least the one of following information Plant the length for determining measurement interval：Arrowband number, the measurement of an arrowband in measurement arrowband set Time, Hopping time, measurement arrowband set is corresponding reports number of times, reports pattern.
Alternatively, it is default in the measurement interval and enters in the case that line period CSI reports, such as M It is the integral multiple of k, then the arrowband number for once reporting corresponding measurement interval measurement is M/k；
Or, in reporting at continuous k time, in reporting for k-1 time therein, corresponding survey is reported every time Amount interval measurement arrowband number beResidue once reports the arrowband of corresponding measurement interval measurement Number is
Wherein, M is the arrowband number in measurement arrowband set, and k is measurement arrowband set pair That what is answered reports number of times；K be default or the node B of evolution configuration.
Alternatively, it is default in the measurement interval and enters in the case that line period CSI reports, once The arrowband number for reporting corresponding measurement interval measurement is m；
Or, continuousIt is secondary to report, it is thereinIt is secondary report in report every time The arrowband number of corresponding measurement interval measurement is m, remaining once to report what corresponding measurement interval was measured Arrowband number is
Wherein, M is the arrowband number in measurement arrowband set, and m is default or evolution Node B configurations.
Alternatively, the determination measurement interval, including：
It is default in the measurement interval and carries out in the case that CSI aperiodic reports, according to includes CSI reports the Downlink Control Information DCI of request or the accidental access response RAR of request is reported comprising CSI The subframe position at place determines the initial subframe position or last subframe position of measurement interval；According to The length of at least one determination measurement interval of lower information：Arrowband number in measurement arrowband set, The time of measuring of one arrowband, Hopping time.
Alternatively, it is described to report the Downlink Control Information DCI of request comprising CSI or report comprising CSI The information of measurement arrowband set is included in the accidental access response RAR of request also.
Alternatively, the determination reports the moment, including：
Carrying out in the case that CSI aperiodic reports, according to the descending control that request is reported comprising CSI Information DCI processed reports the subframe position that the accidental access response RAR of request is located to determine comprising CSI It is described to report the moment, or the moment is reported according to measurement interval determines.
Alternatively, it is described that CSI is carried out to the arrowband in measurement arrowband set in the measurement interval Measurement, including：
The arrowband in measurement arrowband set is carried out according to default order in the measurement interval CSI is measured；Or
The part subframe of the measurement interval is according in default rule correspondence measurement arrowband set Arrowband subclass, measures narrow in measurement arrowband subclass in the part subframe of the measurement interval The CSI of band.
Alternatively, CSI aperiodic that carries out is reported, including：
Report comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Machine measured in accessing the measurement interval responded before the subframe that RAR is located or measured and do not reported All or part of arrowband CSI；Or
Report the DCI of request is reported comprising CSI or report the subframe that the RAR of request is located comprising CSI The CSI of all or part of arrowband that will be measured in measurement interval afterwards.
Alternatively, it is described to report the Downlink Control Information DCI of request comprising CSI or report comprising CSI Measurement interval before the subframe that the accidental access response RAR of request is located includes k measurement interval week Phase；K more than or equal to 1, k be default or the node B of evolution configuration；
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Measurement interval after the subframe that machine access response RAR is located includes h measurement interval cycle；H is big In or equal to 1, h be default or the node B of evolution configuration.
Alternatively, it is described enter line period CSI report or CSI aperiodic is reported, including：
Measurement arrowband set includes multiple measurement arrowbands subclass, periodic report or reports institute aperiodic State the average channel quality designator CQI of all arrowbands in measurement arrowband subclass.
Alternatively, it is described to report pattern, including：
For cycle CSI is reported：
The CSI of the arrowband in measurement arrowband set is reported successively according to preset order, reports one every time The CSI of individual arrowband；Or reported according to preset order successively narrow in the subset of measurement arrowband set The CSI of band, selects one or more arrowbands every time from the subset of corresponding measurement arrowband set CSI is reported；
For CSI aperiodic is reported：
The CSI of the whole arrowbands in measurement arrowband set is reported, or reports measurement arrowband collection The CSI of part arrowband in conjunction, the number of the part arrowband is default or the node B of evolution matches somebody with somebody Put.
Alternatively, the node B of evolution is by following a)-c) any one configuration information of mode：
A) system information block SIB message；
B) radio resource control RRC signaling；
C) Downlink Control Information DCI or accidental access response RAR.
Alternatively, it is described to determine measurement arrowband set, including：According to the arrowband of the node B of evolution configurations The arrowband in measurement arrowband set is determined with frequency pattern.
Alternatively, the arrowband and frequency pattern according to the node B of evolution configurations determines that the measurement is narrow With set in arrowband, including：Entering in the case that line period CSI reports, it is corresponding reporting every time In measurement interval, the narrow of measurement is determined according to an arrowband and frequency pattern of the node B of evolution configurations Band.
The embodiment of the present invention additionally provides a kind of device of channel condition information measurement feedback, is applied to user Terminal, including：
Analysis module, for determining measurement interval, reporting the moment, report pattern and measurement arrowband set；
Measurement module, for carrying out letter to the arrowband in measurement arrowband set in the measurement interval Channel state information CSI is measured；
Reporting module, is used for into line period CSI reporting or CSI aperiodic is reported.
Alternatively, the measurement interval, report the moment, report pattern and measurement arrowband set in At least one be it is default, or evolution node B configuration.
Alternatively, the measurement interval includes one or more of following parameter：The length of measurement interval, The repetition period of measurement interval, the initial subframe position of measurement interval, last subframe of measurement interval Position and the subframe position of measurement interval；
Measurement arrowband set includes whole arrowbands or part arrowband in system bandwidth.
Alternatively, the analysis module, for determining measurement interval, including：
In the case of the measurement interval is default, the cell ID of the cell being located according to user terminal Or the mark of user terminal determines the measurement interval.
Alternatively, the analysis module, reports the moment for determination and reports pattern, including：
Entering in the case that line period CSI reports, determined according to measurement interval and described report the moment and report Pattern.
Alternatively, the analysis module, for determining measurement interval, including：
It is default in the measurement interval and enters in the case that line period CSI reports, according to reports the moment Determine the initial subframe position or last subframe position of measurement interval；According at least the one of following information Plant the length for determining measurement interval：Arrowband number, the measurement of an arrowband in measurement arrowband set Time, Hopping time, measurement arrowband set is corresponding reports number of times, reports pattern.
Alternatively, it is default in the measurement interval and enters in the case that line period CSI reports, such as M It is the integral multiple of k, then the arrowband number for once reporting corresponding measurement interval measurement is M/k；
Or, in reporting at continuous k time, in reporting for k-1 time therein, corresponding survey is reported every time Amount interval measurement arrowband number beResidue once reports the arrowband of corresponding measurement interval measurement Number is
Wherein, M is the arrowband number in measurement arrowband set, and k is measurement arrowband set pair That what is answered reports number of times；K be default or the node B of evolution configuration.
Alternatively, it is default in the measurement interval and enters in the case that line period CSI reports, once The arrowband number for reporting corresponding measurement interval measurement is m；
Or, continuousIt is secondary to report, it is thereinIt is secondary report in report every time The arrowband number of corresponding measurement interval measurement is m, remaining once to report what corresponding measurement interval was measured Arrowband number is
Wherein, M is the arrowband number in measurement arrowband set, and m is default or evolution Node B configurations.
Alternatively, the analysis module, for determining measurement interval, including：
It is default in the measurement interval and carries out in the case that CSI aperiodic reports, according to includes CSI reports the Downlink Control Information DCI of request or the accidental access response RAR of request is reported comprising CSI The subframe position at place determines the initial subframe position or last subframe position of measurement interval；According to The length of at least one determination measurement interval of lower information：Arrowband number in measurement arrowband set, The time of measuring of one arrowband, Hopping time.
Alternatively, it is described to report the Downlink Control Information DCI of request comprising CSI or report comprising CSI The information of measurement arrowband set is included in the accidental access response RAR of request also.
Alternatively, the analysis module, reports the moment for determining, including：
Carrying out in the case that CSI aperiodic reports, according to the descending control that request is reported comprising CSI Information DCI processed reports the subframe position that the accidental access response RAR of request is located to determine comprising CSI It is described to report the moment, or the moment is reported according to measurement interval determines.
Alternatively, the measurement module, in the measurement interval in measurement arrowband set Arrowband carry out CSI measurements, including：
The arrowband in measurement arrowband set is carried out according to default order in the measurement interval CSI is measured；Or
The part subframe of the measurement interval is according in default rule correspondence measurement arrowband set Arrowband subclass, measures narrow in measurement arrowband subclass in the part subframe of the measurement interval The CSI of band.
Alternatively, the reporting module, reports for carrying out CSI aperiodic, including：
Report comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Machine measured in accessing the measurement interval responded before the subframe that RAR is located or measured and do not reported All or part of arrowband CSI；Or
Report the DCI of request is reported comprising CSI or report the subframe that the RAR of request is located comprising CSI The CSI of all or part of arrowband that will be measured in measurement interval afterwards.
Alternatively, it is described to report the Downlink Control Information DCI of request comprising CSI or report comprising CSI Measurement interval before the subframe that the accidental access response RAR of request is located includes k measurement interval week Phase；K more than or equal to 1, k be default or the node B of evolution configuration；
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Measurement interval after the subframe that machine access response RAR is located includes h measurement interval cycle；H is big In or equal to 1, h be default or the node B of evolution configuration.
Alternatively, the reporting module, is used for into line period CSI reporting or CSI aperiodic is reported, bag Include：
Measurement arrowband set includes multiple measurement arrowbands subclass, periodic report or reports institute aperiodic State the average channel quality designator CQI of all arrowbands in measurement arrowband subclass.
Alternatively, it is described to report pattern, including：
For cycle CSI is reported：
The CSI of the arrowband in measurement arrowband set is reported successively according to preset order, reports one every time The CSI of individual arrowband；Or reported according to preset order successively narrow in the subset of measurement arrowband set The CSI of band, selects one or more arrowbands every time from the subset of corresponding measurement arrowband set CSI is reported；
For CSI aperiodic is reported：
The CSI of the whole arrowbands in measurement arrowband set is reported, or reports measurement arrowband collection The CSI of part arrowband in conjunction, the number of the part arrowband is default or the node B of evolution matches somebody with somebody Put.
Alternatively, the node B of evolution is by following a)-c) any one configuration information of mode：
A) system information block SIB message；
B) radio resource control RRC signaling；
C) Downlink Control Information DCI or accidental access response RAR.
Alternatively, the analysis module, for determining measurement arrowband set, including：According to the section of evolution The arrowband and frequency pattern of point B configurations determines the arrowband in measurement arrowband set.
Alternatively, the analysis module, for the arrowband that configured according to the node B of evolution and frequency pattern Determine the arrowband in measurement arrowband set, including：Entering in the case that line period CSI reports, Reported in corresponding measurement interval every time, according to an arrowband and hopping pattern of the node B of evolution configurations Sample determines the arrowband of measurement.
Compared with prior art, the method and dress of a kind of channel condition information measurement feedback that the present invention is provided Put, user terminal determines measurement interval, reports the moment, reports pattern and measurement arrowband set, described Carry out channel condition information CSI measurements to go forward side by side in measurement interval to the arrowband in measurement arrowband set Line period CSI is reported or CSI aperiodic is reported, by default (such as, agreement regulation) or by evolution Node B configuration measurement interval, report the moment, report pattern and measurement arrowband set at least one Kind of information, can make the less user terminal of support radio frequency bandwidth realize the measurement to channel condition information and Feedback.
Description of the drawings
Method flow diagrams of the Fig. 1 for a kind of channel condition information measurement feedback of the embodiment of the present invention；
Apparatus structure schematic diagrams of the Fig. 2 for a kind of channel condition information measurement feedback of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing Embodiments of the invention are described in detail.It should be noted that in the case where not conflicting, this Shen Please in embodiment and the feature in embodiment can mutual combination in any.
As shown in figure 1, a kind of method of channel condition information measurement feedback is embodiments provided, User terminal is applied to, the method includes：
Step S101：Determine measurement interval, report the moment, report pattern and measurement arrowband set.
Wherein, the measurement interval, report the moment, report pattern and measurement arrowband set in extremely Few one is default, or the node B (eNB) of evolution configures.
Wherein, the measurement interval includes one or more of following parameter：The length of measurement interval, survey The repetition period at amount interval, the initial subframe position of measurement interval, last subframe position of measurement interval Put the subframe position with measurement interval；
Measurement arrowband set includes whole arrowbands or part arrowband in system bandwidth.
Wherein, the determination measurement interval, including：
In the case of the measurement interval is default, the cell ID of the cell being located according to user terminal Or the mark of user terminal determines the measurement interval.
Such as, there are the repetition period of two kinds of measurement intervals, respectively 10ms and 20ms, if cell mark Know for odd number, then the repetition period is 10ms, if cell ID is even number, the repetition period is 20ms.
Wherein, the determination reports the moment and reports pattern, including：
Entering in the case that line period CSI reports, determined according to measurement interval and described report the moment and report Pattern.
Such as, it is described to report constantly as n-th subframe after corresponding measurement interval；N is preset value Or eNB Configuration Values；Such as, to FDD (Frequency Division Dual, FDD) system, N is equal to 4；To time division duplex (Time Division Duplexing, TDD) system, n is more than 4.
Wherein, the determination measurement interval, including：
It is default in the measurement interval and enters in the case that line period CSI reports, according to reports the moment Determine the initial subframe position or last subframe position of measurement interval；According at least the one of following information Plant the length for determining measurement interval：Measurement arrowband set in arrowband number, the time of measuring of an arrowband, Hopping time, arrowband set is corresponding reports number of times, reports pattern for measurement；
Wherein, measurement arrowband set is corresponding reports number of times to be traversal one-shot measurement arrowband set correspondence Report number of times.
Wherein, it is default in the measurement interval and enters in the case that line period CSI reports：
If M is the integral multiple of k, then the arrowband number for once reporting corresponding measurement interval measurement is M/k；Or,
In reporting at continuous k time, in reporting for k-1 time therein, corresponding measurement interval is reported every time The arrowband number of measurement isResidue once reports the arrowband number of corresponding measurement interval measurement to be
Wherein, M is the arrowband number in measurement arrowband set, and k is measurement arrowband set pair That what is answered reports number of times；K be default or the node B of evolution configuration；Expression rounds up.
Wherein, it is default in the measurement interval and enters in the case that line period CSI reports：
The arrowband number for once reporting corresponding measurement interval measurement is m；Or,
ContinuousIt is secondary to report, it is thereinIt is secondary report in report every time it is corresponding The arrowband number of measurement interval measurement is m, the remaining arrowband number for once reporting corresponding measurement interval measurement Mesh is
Wherein, M is the arrowband number in measurement arrowband set, and m is default or evolution Node B configurations.
Wherein, the determination measurement interval, including：
It is default in the measurement interval and carries out in the case that CSI aperiodic reports, according to includes CSI reports the Downlink Control Information (Downlink Control Information, DCI) of request or includes CSI reports the son that the accidental access response (Random Access Response, RAR) of request is located Frame position determines the initial subframe position or last subframe position of measurement interval；According to following information At least one length for determining measurement interval：Arrowband number, the survey of an arrowband in measurement arrowband set Amount time, Hopping time.Wherein, it is described comprising CSI report request Downlink Control Information DCI or The information of measurement arrowband set can also be included during the accidental access response RAR of request is reported comprising CSI.
Wherein, the determination reports the moment, including：
Carrying out in the case that CSI aperiodic reports, according to the descending control that request is reported comprising CSI Information DCI processed reports the subframe position that the accidental access response RAR of request is located to determine comprising CSI It is described to report the moment, or, the moment is reported according to measurement interval determines.
Wherein, it is described to report pattern, including：
For cycle CSI is reported：
The CSI of the arrowband in measurement arrowband set is reported successively according to preset order, reports one every time The CSI of individual arrowband；Or reported according to preset order successively narrow in the subset of measurement arrowband set The CSI of band, selects the CSI of one or more arrowbands every time from the subset of corresponding measurement arrowband set Reported；
For CSI aperiodic is reported：
The CSI of the whole arrowbands in the set of reporting measurement arrowband, or part in the set of reporting measurement arrowband The CSI of arrowband, the number of the part arrowband are default or the node B of evolution configurations.
Wherein, the node B of evolution any one configuration information in the following manner：
A) system information block (System Information Block, SIB) message；
B) wireless heterogeneous networks (Radio Resource Control, RRC) signaling；
C) Downlink Control Information (Downlink Control Information, DCI) or Stochastic accessing ring Answer (Random Access Response, RAR).
Wherein, measurement arrowband set is determined according to the arrowband and frequency pattern of the node B of evolution configurations In arrowband.Further, entering in the case that line period CSI reports, reporting corresponding survey every time On amount interval, the arrowband of measurement is determined according to an arrowband and frequency pattern of the node B of evolution configurations.
Step S102：Channel is carried out to the arrowband in measurement arrowband set in the measurement interval Status information is measured.
Wherein, it is described that CSI is carried out to the arrowband in measurement arrowband set in the measurement interval Measurement, including：
The arrowband in measurement arrowband set is carried out according to default order in the measurement interval CSI is measured；Or,
The part subframe of the measurement interval is according in default rule correspondence measurement arrowband set Arrowband subclass, measures narrow in measurement arrowband subclass in the part subframe of the measurement interval The CSI of band.
Step S103：Enter that line period CSI is reported or CSI aperiodic is reported.
Wherein, CSI aperiodic that carries out is reported, including：
Report comprising CSI report request Downlink Control Information DCI or comprising CSI report request with All or part of arrowband that machine was measured in accessing the measurement interval responded before the subframe that RAR is located CSI；Or,
Report the DCI of request is reported comprising CSI or report the subframe that the RAR of request is located comprising CSI The CSI of all or part of arrowband that will be measured in measurement interval afterwards.
Wherein, it is described to report the Downlink Control Information DCI of request or comprising submitting a report asking on CSI comprising CSI Measurement interval before the subframe that the accidental access response RAR for asking is located includes k measurement interval cycle； K more than or equal to 1, k be default or the node B of evolution configuration；
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Measurement interval after the subframe that machine access response RAR is located includes h measurement interval cycle；H is big In or equal to 1, h be default or the node B of evolution configuration.
Wherein, the node B of evolution any one configuration information in the following manner：
A) system information block SIB message；
B) radio resource control RRC signaling；
C) Downlink Control Information DCI or accidental access response RAR；
Wherein, it is described enter line period CSI report or CSI aperiodic is reported, including：
Measurement arrowband set includes multiple measurement arrowbands subclass, periodic report or reports institute aperiodic State average channel quality designator (the Channel Quality of all arrowbands in measurement arrowband subclass Indicator, CQI).
As shown in Fig. 2 a kind of device of channel condition information measurement feedback is embodiments provided, User terminal is applied to, including：
Analysis module 201, for determining measurement interval, reporting the moment, report pattern and measurement arrowband collection Close；
Measurement module 202, for entering to the arrowband in measurement arrowband set in the measurement interval Row channel condition information CSI is measured；
Reporting module 203, is used for into line period CSI reporting or CSI aperiodic is reported.
Wherein, the measurement interval, report the moment, report pattern and measurement arrowband set in extremely Few one is default, or the node B configurations of evolution.
Wherein, the measurement interval includes one or more of following parameter：The length of measurement interval, survey The repetition period at amount interval, the initial subframe position of measurement interval, last subframe position of measurement interval Put the subframe position with measurement interval；
Measurement arrowband set includes whole arrowbands or part arrowband in system bandwidth.
Wherein, the analysis module 201, for determining measurement interval, including：
In the case of the measurement interval is default, the cell ID of the cell being located according to user terminal Or the mark of user terminal determines the measurement interval.
Wherein, the analysis module 201, reports the moment for determination and reports pattern, including：
Entering in the case that line period CSI reports, determined according to measurement interval and described report the moment and report Pattern.
Wherein, the analysis module 201, for determining measurement interval, including：
It is default in the measurement interval and enters in the case that line period CSI reports, according to reports the moment Determine the initial subframe position or last subframe position of measurement interval；According at least the one of following information Plant the length for determining measurement interval：Measurement arrowband set in arrowband number, the time of measuring of an arrowband, Hopping time, arrowband set is corresponding reports number of times, reports pattern for measurement.
Wherein, it is default in the measurement interval and enters in the case that line period CSI reports：
If M is the integral multiple of k, then the arrowband number for once reporting corresponding measurement interval measurement is M/k；Or,
In reporting at continuous k time, in reporting for k-1 time therein, corresponding measurement interval is reported every time The arrowband number of measurement isResidue once reports the arrowband number of corresponding measurement interval measurement to be
Wherein, M is the arrowband number in measurement arrowband set, and k is measurement arrowband set pair That what is answered reports number of times；K be default or the node B of evolution configuration.
Wherein, it is default in the measurement interval and enters in the case that line period CSI reports：
The arrowband number for once reporting corresponding measurement interval measurement is m；Or,
ContinuousIt is secondary to report, it is thereinIt is secondary report in report every time it is corresponding The arrowband number of measurement interval measurement is m, the remaining arrowband number for once reporting corresponding measurement interval measurement Mesh is
Wherein, M is the arrowband number in measurement arrowband set, and m is default or evolution Node B configurations.
Wherein, the analysis module 201, for determining measurement interval, including：
It is default in the measurement interval and carries out in the case that CSI aperiodic reports, according to includes CSI reports the Downlink Control Information DCI of request or the accidental access response RAR of request is reported comprising CSI The subframe position at place determines the initial subframe position or last subframe position of measurement interval；According to The length of at least one determination measurement interval of lower information：Measurement arrowband set in arrowband number, one The time of measuring of arrowband, Hopping time.
Wherein, it is described to report the Downlink Control Information DCI of request or comprising submitting a report asking on CSI comprising CSI Information in the accidental access response RAR for asking also comprising measurement arrowband set.
Wherein, the analysis module 201, reports the moment for determining, including：
Carrying out in the case that CSI aperiodic reports, according to the descending control that request is reported comprising CSI Information DCI processed reports the subframe position that the accidental access response RAR of request is located to determine comprising CSI It is described to report the moment, or the moment is reported according to measurement interval determines.
Wherein, the measurement module 202, in the measurement interval to measurement arrowband set In arrowband carry out CSI measurements, including：
The arrowband in measurement arrowband set is carried out according to default order in the measurement interval CSI is measured；Or,
The part subframe of the measurement interval is according in default rule correspondence measurement arrowband set Arrowband subclass, measures narrow in measurement arrowband subclass in the part subframe of the measurement interval The CSI of band.
Wherein, the reporting module 203, reports for carrying out CSI aperiodic, including：
Report comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Machine measured in accessing the measurement interval responded before the subframe that RAR is located or measured and do not reported All or part of arrowband CSI；Or,
Report the DCI of request is reported comprising CSI or report the subframe that the RAR of request is located comprising CSI The CSI of all or part of arrowband that will be measured in measurement interval afterwards.
Wherein, it is described to report the Downlink Control Information DCI of request or comprising submitting a report asking on CSI comprising CSI Measurement interval before the subframe that the accidental access response RAR for asking is located includes k measurement interval cycle； K more than or equal to 1, k be default or the node B of evolution configuration；
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Measurement interval after the subframe that machine access response RAR is located includes h measurement interval cycle；H is big In or equal to 1, h be default or the node B of evolution configuration.
Wherein, the reporting module 203, is used for into line period CSI reporting or CSI aperiodic is reported, Including：
Measurement arrowband set includes multiple measurement arrowbands subclass, periodic report or reports institute aperiodic State the average channel quality designator CQI of all arrowbands in measurement arrowband subclass.
Wherein, it is described to report pattern, including：
For cycle CSI is reported：
The CSI of the arrowband in measurement arrowband set is reported successively according to preset order, reports one every time The CSI of individual arrowband；Or reported according to preset order successively narrow in the subset of measurement arrowband set The CSI of band, selects the CSI of one or more arrowbands every time from the subset of corresponding measurement arrowband set Reported；
For CSI aperiodic is reported：
The CSI of the whole arrowbands in the set of reporting measurement arrowband, or part in the set of reporting measurement arrowband The CSI of arrowband, the number of the part arrowband are default or the node B of evolution configurations.
Wherein, the node B of evolution any one configuration information in the following manner：
A) system information block SIB message；
B) radio resource control RRC signaling；
C) Downlink Control Information DCI or accidental access response RAR.
Wherein, the analysis module, for determining measurement arrowband set, including：According to the node of evolution The arrowband and frequency pattern of B configurations determines the arrowband in measurement arrowband set.Further, it is described Analysis module, the arrowband and frequency pattern for being configured according to the node B of evolution determine that the measurement is narrow With set in arrowband, including：Entering in the case that line period CSI reports, it is corresponding reporting every time In measurement interval, the narrow of measurement is determined according to an arrowband and frequency pattern of the node B of evolution configurations Band.
Hereinafter the present embodiment is specifically described.
(1) configuration below to measurement interval, measurement arrowband set is described in detail：
System bandwidth is several arrowbands according to default model split, and (20MHz is included 100 such as Individual PRB) system bandwidth be divided into 16 arrowbands, each arrowband includes 6 PRB, remaining 4 Individual PRB is evenly distributed on the both sides of system bandwidth, 2 PRB.For arrowband in system bandwidth Definition mode, the present invention be not limited.
Measurement interval and/or measurement arrowband collection be combined into it is default, or by the node B (evolved of evolution Node B, eNB) configured；The measurement interval refers to one or more subframe (measurement subframe) The set of composition, the measurement subframe (for measuring the subframe of downstream signal) in the measurement interval, UE carries out the measurement of downstream signal, and the reference signal of measurement can be cell reference signals (Cell Reference Signal, CRS) or channel state information reference signals (Channel State Information Reference Signal, CSI-RS), or can also be the new reference signal for defining, Here it is not limited.
ENB can configure measurement interval to the UE in cell by publicly-owned signaling, or can also lead to The proprietary wireless heterogeneous networks of UE (Radio Resource Control, RRC) signaling is crossed to certain UE Configuration measurement interval.
The corresponding unified measurement intervals of UE in one cell, such as, the measurement interval can be by little Area's mark determines.UE in one cell can also correspond to different measurement intervals, such as, UE's Measurement interval can be by Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (the Cell Radio Network of the UE Temporary Identifier, C-RNTI) determine.
ENB can be that UE configures measurement interval and/or measurement arrowband set, measurement by RRC signaling Interval can correspond to the sub-frame set that the next radio frames of the RRC signaling start, and measure arrowband Set can be all or part of arrowband in system bandwidth；
Measurement interval can be the cycle or aperiodic；
Such as, if measurement arrowband collection is combined into all arrowbands in system bandwidth, arrowband index is respectively 0, 1st ..., 15, the repetition period of measurement interval is 40ms, and the length of a measurement interval is that 4ms is (right Ying Yu includes 4 subframes for being used to measure arrowband), the initial subframe of measurement arrowband is in measurement interval Side-play amount is 0, then, from first measurement interval cycle, first 4ms measures arrowband respectively 0th, 1,2 and 3, the 4ms in second measurement interval cycle measures arrowband 4,5,6,7 respectively, successively Analogize, after all having measured to all arrowbands, start measurement from arrowband 0 again.Or, between each measurement One arrowband subclass of all measurement subframe correspondences in phase every other week, corresponding arrowband of each measurement subframe Arrowband in set is not limited.Such as, first measurement interval cycle correspondence arrowband 0,1,2,3, Within the cycle, UE can complete the measurement of this 4 arrowbands, but which surveys concrete which arrowband correspondence Quantum frame is not limited.
As UE needs the frequency hopping measurement on multiple arrowbands, and frequency hopping needs the regular hour, such as The time that fruit frequency hopping takes is longer, needs to reserve the time to do frequency hopping, then n subframe can be measured Arrowband number will be less than n.Now, eNB can include measurement arrowband to the measurement interval that UE is configured The index information of subframe, such as, comprising subframe index set { 1,3 }, that is, first subframe is used for Measurement, second subframe are used for frequency hopping, and the 3rd subframe is used to measure, and the 4th subframe is used for frequency hopping. Or, if frequency hopping only takes up several symbols, such as 2 OFDM symbols, then n subframe can To measure n different arrowband.Now, eNB includes subframe index to the measurement interval that UE is configured {1,2,3,4}；
Alternatively, measurement arrowband set is included under the arrowband and/or physics of carrying Downlink Control Information The arrowband that row shared channel (Physical Downlink Shared Channel, PDSCH) is located；
For some inevitable transmission, such as accidental access response (Random Access Response, RAR), up hybrid automatic repeat-request (Hybrid Automatic Repeat ReQuest, HARQ) ACK, the PDSCH of semi-persistent scheduling etc., if the transmission of these information Subframe and measurement interval are overlapped, then, in the subframe for overlapping, UE can abandon CSI measurements, or, After the timing of these inevitable transmission informations is modified to the measurement interval by the node B of evolution；
(2) below periodic report CSI is described in detail：
For measurement interval is the scene of period assignment, UE does the time of cycle CSI feedback can basis The configuration of the measurement interval is determining such as there is default timing relationship with measurement interval.Such as FDD (Frequency Division Dual, FDD) system, the Preset Time being separated by therebetween Can be 4 subframes, it is assumed that subframe 0～3 of some measurement interval comprising radio frames #10, then week The subframe that phase CSI is reported is subframe 7.For time division duplex (Time Division Duplexing, TDD), Therebetween the Preset Time being separated by can be more than 4 subframes.The example above is not limited in practical application.
For measurement interval is the scene of period assignment, UE does the feedback model of cycle CSI feedback can be with Determined by measurement interval.Such as assume that a measurement interval length is 1ms, it is assumed here that stepped-frequency interval For 1～2 symbol, that is to say, that in a measurement interval, UE only measures an arrowband, then Report moment, UE report the CSI to this arrowband.
Or, for measurement interval is the scene of period assignment, it is assumed that a measurement interval length is more than 1ms, it is assumed here that stepped-frequency interval is 1～2 symbol, that is to say, that in a measurement interval, UE Multiple arrowbands can be measured, then reporting the moment, UE can report best narrow of CSI measurement results The CSI measurement results of band and the index of the arrowband；Wherein, the index of arrowband can be the reality of the arrowband Border indexes, i.e. absolute indices, such as assumes that the arrowband number in system bandwidth is 16, absolute arrowband rope Be cited as 0,1 ..., 15.Or in order to further reduce expense, UE can report a relative rope Draw, 4 arrowbands of correspondence in such as one measurement interval, opposite, narrow tape index are 0,1,2,3.
Or, for measurement interval is the scene of period assignment, it is assumed that a measurement interval length is more than 1ms, it is assumed here that stepped-frequency interval is 1～2 symbol, that is to say, that in a measurement interval, UE Multiple arrowbands can be measured, then reporting moment, UE report the CSI of all arrowbands for measuring, Or, report the CSI of the arrowband that part measured.For part reports, UE also reports the rope of arrowband Draw；
(3) CSI is reported to be described in detail aperiodic below：
Aperiodic, CSI was reported typically by Downlink Control Information (Downlink Control Information, DCI) or RAR triggerings.CSI request letter is carried in described DCI, RAR Breath.The mode of several CSI feedbacks aperiodic is given below.
Mode one：Measured in reporting the measurement interval before the subframe at the DCI or RAR places Arrowband CSI.
Such as, during UE reports n measurement interval before the subframe that the DCI or RAR is located The CSI of all or part of arrowband for measuring.The number n in the measurement interval cycle for default or Person eNB configurations；N is more than or equal to 1；
Such as, measure in reporting n measurement interval before the subframe at the DCI or RAR places The CSI of all or part of arrowband that is crossing and not reporting.Such as described DCI or RAR is located Subframe before n measurement interval in the arrowband that measured have 8, cycle CSI reported therein 2 arrowbands, then, CSI aperiodic reports remaining 6 arrowbands.The measurement interval cycle Number n be default or eNB configuration；N is more than or equal to 1.
Such as, the information of the arrowband set of measurement is needed in the DCI or RAR comprising the UE And/or the UE needs the information of arrowband set that reports.
In mode one, aperiodic, CSI reported the timing that can be continued to use in existing standard, such as in FDD In system, subframe is reported to be n+4, wherein n is the DCI or the subframe index at RAR places. For coverage enhancement scene, information typically repeats what is sent, therefore the n can be carrying CSI Report last subframe of the DCI or RAR of request；
Mode two：Will survey in reporting the measurement interval after the subframe that the DCI or RAR be located The CSI of the arrowband of amount.
Such as, UE reports m measurement interval week after the subframe that the DCI or RAR is located The CSI of all or part of arrowband that will be measured in the phase.The m is configured for default or eNB 's；M is more than or equal to 1.
Alternatively, the letter of the arrowband set of measurement is needed in the DCI or RAR comprising the UE Breath and/or the UE need the narrow band information for reporting；
In mode two, the subframe that UE is reported can be determined according to default mode, be such as n+k, Wherein n is the DCI or the subframe index at RAR places；K is that preset value or eNB are configured Value.Or, the subframe that UE is reported is in m measurement interval cycle after last measurement subframe T-th subframe；T is the value that preset value or eNB are configured.
(4) in the case where cycle CSI reports scene, determine that to implicit expression the method for measurement interval is retouched in detail State：
In cycle CSI feedback, each CSI report the initial subframe position of corresponding measurement interval or The position of last subframe is determined by reporting subframe position.The initial subframe position or last The position of subframe and report, such as FDD system, The position of initial subframe position or last subframe is n-k, and wherein n is to report subframe index, k It is a preset value, or the value of an eNB configuration.Such as in FDD system, k >=4, and K is to meet the minima that n-k is effective subframe, and such as n-4 is not effective subframe, and n-5 is effective Subframe, then k=5.The definition of wherein effectively subframe is the subframe at least meeting at least one of：
A) subframe is a descending sub frame；
B) except, under transmission mode 9 or transmission mode 10, the subframe is not a multicast and broadcast list Frequency net MBSFN sub-frame；
C) subframe is less than or equal to 7680T not comprising lengthsDescending pilot frequency time slot DwPTS domains, its Middle TsRepresent sampling interval, Ts=1/ (15000 × 2048) second；
D) subframe is not configuration for the subframe with external pelivimetry；
If e) UE is configured for CSI subframe collection, the subframe should be the son that the CSI subframes are concentrated Frame.
In existing LTE system, only effectively subframe can just be used for measurement.Therefore in measurement interval Measurement subframe be not necessarily continuously.
The determination method that each CSI reports the length of correspondence measurement interval is given below.
(A) length of measurement interval can be by reporting pattern to determine.
Such as, one kind of periodic report pattern reports pattern to measure an arrowband every time, and reports described CSI on one arrowband, can with all of measurement arrowband of poll, the measurement arrowband be it is default, than It is such as all arrowbands in system bandwidth, or configure for eNB, can be the institute in system bandwidth There is the subset of arrowband.Report under pattern this, measurement interval can (hypothesis ignores jump for a subframe The frequency time).
Such as, another kind of periodic report pattern is to measure multiple arrowbands every time, and reports the plurality of arrowband In all arrowbands or the CSI on the arrowband of part.Report under pattern this, the length of measurement interval It can be the arrowband number subframe (hypothesis ignores Hopping time) of the plurality of arrowband.On such as described Under report pattern, 4 measurement subframes of measurement are needed, then the length of measurement interval is 4 subframes.
(B) length of measurement interval can with by measurement arrowband determine.
The measurement arrowband can be all arrowbands in system bandwidth, or configure for eNB, can Think the subset of all arrowbands in system bandwidth.The length of the measurement interval can be by measurement arrowband Number determines.
Such as, for reporting pattern to be to measure multiple arrowbands every time and report all in the plurality of arrowband The scene of the CSI on arrowband or part arrowband, if measurement arrowband is all narrow in system bandwidth Band, can determine the length of measurement interval according to default mode, such as 20MHz system bands Width, all of arrowband number are 16, and measurement arrowband number is also this 16 arrowbands, arrowband index for 0, 1st ..., 15, then for cycle CSI feedback, this 16 arrowbands are divided into into 4 subclass, such as { 0,1,2,3 }, { 4,5,6,7 }, { 8,9,10,11 }, { 12,13,14,15 }, the definition of cycle CSI feedback To measure 4 arrowbands in a set successively, the CSI of wherein best one arrowband is then reported, And report the absolute indices or relative indexing of best one arrowband.Report for 4 times and can travel through survey All of arrowband is measured.In this case, the length of measurement interval is that (hypothesis ignores jump to 4 subframes The frequency time, and be in the case where non-covered strengthens).
Such as, if measurement arrowband is the arrowband of eNB configurations, can be all narrow in system bandwidth The subset of band.The length of measurement interval can be determined according to default mode.Such as preset or configure Report for k time and can travel through all of measurement arrowband of measurement, the arrowband of eNB configurations has M, then every time Report need measurement arrowband number beThe length of measurement interval isIndividual subframe (is assumed Ignore Hopping time, and be in the case where non-covered strengthens).In the measurement interval, UE traversals are surveyed All of measurement arrowband is measured, and is reported.Wherein, forSituation, one measurement week In phase, the arrowband number for needing measurement is reported for first k-1 time to beThe length of measurement interval is Individual subframe, report for the last time need measurement arrowband number beMeasurement interval Length isIndividual subframe.
For example, it is assumed that M=8, that is, have 8 measurement arrowbands, k=2, i.e., 2 time report can travel through it is all of Measurement arrowband.The length of the measurement interval for then reporting every time is 4 subframes.
Again for example, it is assumed that M=7, that is, have 7 measurement arrowbands, it is assumed that index is respectively 0,1 ..., 6, k=2, i.e., 2 time report and can travel through all of measurement arrowband.The length of the measurement interval for then reporting every time For 4 subframes, now, corresponding measurement arrowband 0,1,2,3 is reported for the first time, is reported for the second time Corresponding measurement arrowband 4,5,6,0, then next time measure the cycle measurement 1,2,3,4 ... ... according to It is secondary to analogize.Or, the length of the measurement interval for reporting for the first time is 4 subframes, measurement arrowband 0,1, 2nd, 3, the length of the measurement interval for reporting for the second time is 3 subframes, measures arrowband 4,5,6.
(C) length of measurement interval can be being determined by Hopping time.
When Hopping time is less several symbols, can ignore, under non-covered is strengthened, measurement The length at interval can be equal to measurement arrowband subframe, such as assume once to report corresponding arrowband number to be 1, So the length of measurement interval can be a subframe.
When Hopping time it is larger, or reserve a subframe as Hopping time when, the length of measurement interval Measurement arrowband subframe is likely larger than, such as assumes once to report corresponding arrowband number to be 1, if it is considered that Hopping time in front and back, then the length of measurement interval can be 3 subframes.
(D) length of measurement interval can be determined with the time of measuring by an arrowband.
Under strengthening for non-covered, the time of measuring of an arrowband is 1 subframe, such as assumes once to go up Corresponding arrowband number is reported to be 1, if ignoring Hopping time, then the length of measurement interval can be one Subframe.
Under for coverage enhancement, the time of measuring of an arrowband can be more than 1 subframe, such as assume once Corresponding arrowband number is reported to be 1, the time of measuring of an arrowband is 4 subframes, if ignore frequency hopping Between, then the length of measurement interval can be 4 subframes.
Alternatively, for cycle CSI feedback, the length for once reporting corresponding measurement interval can also be It is default.M subframe is preset as such as, m is more than or equal to 1.
Assume that measurement arrowband number is M, ignore Hopping time, and be in the case where non-covered strengthens, if often M arrowband of secondary measurement, can measure according to default mode, such as index the suitable of increase according to arrowband Sequence, it is frontThe secondary length for reporting corresponding measurement interval is m, reports corresponding survey for the last time Measuring the length being spaced isMeasureIndividual arrowband.In the survey On amount interval, can measure according to default mode, increased order is such as indexed according to arrowband.
Such as assume M=7, that is, have 7 measurement arrowbands, parameter preset m=4, then it is right to report for the first time The length of the measurement interval answered is 4, and the length for reporting corresponding measurement interval for the second time is 3.
In addition, not every subframe is suitable for measurement, only effectively subframe can be only used for measurement, Therefore, measurement interval is not necessarily continuous subframe, and such as, certain once reports needs to measure 4 arrowbands, The length of measurement interval is 4, is reported constantly as subframe #9, the subframe of last subframe of measurement interval Index as 9-4=5, and subframe #4 is not effective subframe, then the corresponding subframe index of measurement interval is 1, 2、3、5。
(5), under in aperiodic, CSI reports scene, the method to determining measurement interval is described in detail.
Aperiodic, CSI reported what is triggered typically by DCI or RAR.The DCI and RAR Middle carrying CSI request information.
The initial subframe position or last subframe position of measurement interval by trigger subframe determine or Subframe is reported to determine.
The initial subframe position of such as measurement interval is the subframe position that the DCI or RAR is located Or the next subframe position of the subframe position at the DCI or RAR places, under coverage enhancement, It can be the position of the initial subframe that the DCI or RAR is located.
Such as, last subframe position of measurement interval and report System, in this case, the position for reporting subframe is default.In practical application, it is not limited to above-mentioned Timing is illustrated.
The length of the measurement interval can be determined by following manner.
(A) length of the measurement interval is determined by arrowband is measured：
The measurement arrowband can be all arrowbands under system bandwidth, or the arrowband configured for eNB. Such as assume to ignore Hopping time, and be that, in the case where non-covered strengthens, the length of measurement interval can be survey The number of amount arrowband.
Alternatively, the measurement arrowband can be notified in the DCI or RAR.Such as described Index comprising the measurement arrowband in notice.
(B) length of the measurement interval can be being determined by Hopping time：
When Hopping time is less several symbols, can ignore, under non-covered is strengthened, measurement The length at interval can be equal to measurement arrowband subframe；
When Hopping time it is larger, or reserve a subframe as Hopping time when, the length of measurement interval It is likely larger than measurement arrowband subframe.
(C) length of the measurement interval can be determined with the time of measuring by an arrowband：
The method for determining measurement interval under scene to implicit expression is reported to carry out in detail similar to preceding cycles CSI Explanation in description to " length of measurement interval can be determined with the time of measuring by an arrowband ".
Aperiodic, the subframe that reports of CSI feedback can have a default timed-shutoff and triggering subframe between System, is such as n+10, and wherein n is the transmission subframe of the DCI or RAR；
Alternatively, the subframe that reports of CSI feedback aperiodic can have default timed-shutoff with measurement interval System, is such as the 4th subframe after last subframe of measurement interval.
(6) scene under coverage enhancement is described in detail：
Under coverage enhancement, the set of multiple frequency hopping arrowbands can be configured, for cycle CSI feedback, UE Configuration poll according to reporting reports the CSI that frequency hopping arrowband collection closes, the channel quality for reporting Designator (Channel Quality Indicator, CQI) is the average of the arrowband that the arrowband set is included CQI。
Such as, for, under coverage enhancement, eNB is configured with 2 frequency hopping arrowband set to UE, index and be 0th, 1, arrowband set { 0,1,2,3 }, { 4,5,6,7 }, then UE can be on first are corresponded to respectively Give the correct time and engrave the average CQI of report arrowband set #0, report at second and report constantly arrowband set #1's Average CQI, gives the correct time on a third and engraves the average CQI ... ... of report arrowband set #0, successively class Push away.
For CSI feedback aperiodic, eNB can report the average of the arrowband that some arrowband set includes CQI.Such as be arrowband set that the DCI or RAR are located, or can in the DCI or Index comprising the arrowband set in person RAR.The determination method of measurement interval is similar to before to non- The explanation of coverage enhancement scene.
(7) for cycle CSI feedback, if the measurement of the UE of default or eNB configurations is narrow During the arrowband that band is not located including the Downlink Control Information of UE, for reporting each time, in addition it is also necessary to measure The arrowband that the Downlink Control Information is located, reports part or all measurements narrow according to reporting pattern to determine Band, measures the arrowband that arrowband also includes that the Downlink Control Information is located here.
In sum, the method and dress of a kind of channel condition information measurement feedback that above-described embodiment is provided Put, user terminal determines measurement interval, reports the moment, reports pattern and measurement arrowband set, described Carry out channel condition information CSI measurements to go forward side by side in measurement interval to the arrowband in measurement arrowband set Line period CSI is reported or CSI aperiodic is reported, by default (such as, agreement regulation) or by evolution Node B configuration measurement interval, report the moment, report pattern and measurement arrowband set at least one Kind of information, can make the less user terminal of support radio frequency bandwidth realize the measurement to channel condition information and Feedback.
Additionally, the present embodiment gives a method for determining measurement arrowband.Measurement interval can be default , or eNB configuration.The present embodiment is not limited to the mode for obtaining measurement interval.
Assume that eNB is configured with an arrowband set and is used for the measurement of UE.UE is according to this arrowband set To determine the measurement arrowband in measurement arrowband set, and each measurement interval.Two ways is given below.
Mode one：
The arrowband and frequency pattern that measurement arrowband set is configured by eNB determines.In cycle CSI feedback In reporting corresponding measurement interval every time, an arrowband in the arrowband set that UE is configured according to eNB with And frequency pattern, determine measurement arrowbands of the UE in stepped-frequency interval.Such as, it is assumed that eNB configurations For { 1,2,3,4 }, the pattern of frequency hopping is as follows for arrowband index：
Wherein,It is in wireless frame index nfSubframe nsfUpper reception or the arrowband of sending signal.Y It is frequency hopping granularity, is a constant, NsbIt is value corresponding with system bandwidth, is such as 16,Represent Round downwards, mod represents delivery.For once reporting, configured according to this frequency pattern and eNB Arrowband index obtaining the arrowband measured in measurement interval.Arrowband is indexed into #1 and N such assb=16 Frequency pattern is substituted into, formula below can be obtained：
So in specifically reporting, the measurement arrowband of UE is arrowband #1 and arrowband #14.It is right to report every time Answer the arrowband of a configuration, the arrowband of all configurations of poll.The corresponding measurements of arrowband #2 of eNB configurations Arrowband be the corresponding measurement arrowbands of arrowband #3 that arrowband #2 and arrowband #13, eNB are configured be arrowband #3 and The corresponding measurement arrowbands of arrowband #2 of arrowband #12, eNB configuration are arrowband #4 and arrowband #11, then surveyed Amount arrowband collection is combined into arrowband { 1,2,3,4,11,12,13,14 }.The invention is not restricted to above-mentioned frequency pattern.
For non-periodic feedback is also similar to, measurement interval is the subframe after the DCI/RAR of triggering.eNB Mono- arrowband of UE can be notified, after UE receives the DCI/RAR of triggering, according to this arrowband and Frequency pattern obtains measurement arrowband.
Mode two：
Measurement arrowband set is the arrowband set of eNB configurations.Such as, it is assumed that the arrowband of eNB configurations Index as { 1,2,3,4 }, then report corresponding measurement interval every time in cycle CSI feedback, UE These arrowbands can be measured, such as first time reporting measurement is 1 and 2, second reporting measurement is 3 and 4, the time of measuring of each arrowband can be the half of the length of measurement interval.Or, each In reporting corresponding measurement interval, UE can measure 1,2,3,4 this 4 arrowbands, each arrowband Time of measuring can be a quarter of the length of measurement interval.Such as measurement interval length is 8 sub Frame, 2 subframes of each narrow band detection are measured successively according to index order from small to large.
For non-periodic feedback is also similar to, measurement interval is the subframe after the DCI/RAR of triggering.eNB Many arrowbands of UE can be notified, after UE receives the DCI/RAR of triggering, in the plurality of arrowband On measure.
One of ordinary skill in the art will appreciate that all or part of step in said method can pass through journey Instructing related hardware to complete, described program can be stored in computer-readable recording medium sequence, such as only Read memorizer, disk or CD etc..Alternatively, all or part of step of above-described embodiment can also make Realized with one or more integrated circuits, correspondingly, each module/unit in above-described embodiment can be with Realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The present invention is not limited In the combination of the hardware and software of any particular form.
It should be noted that the present invention can also have other various embodiments, without departing substantially from spirit of the invention and In the case of its essence, those of ordinary skill in the art can make various corresponding changes according to the present invention And deformation, but these corresponding changes and deformation should all belong to the protection model of appended claims of the invention Enclose.

Claims (38)

1. a kind of method of channel condition information measurement feedback, is applied to user terminal, it is characterised in that The method includes：
Determine measurement interval, report the moment, report pattern and measurement arrowband set；
Channel condition information is carried out to the arrowband in measurement arrowband set in the measurement interval CSI is measured；
Enter that line period CSI is reported or CSI aperiodic is reported.
2. the method for claim 1, it is characterised in that：
The measurement interval, report the moment, report pattern and measurement at least one of arrowband set Be it is default, or evolution node B configuration.
3. method as claimed in claim 2, it is characterised in that：
The measurement interval includes one or more of following parameter：The length of measurement interval, measurement interval Repetition period, the initial subframe position of measurement interval, last subframe position of measurement interval and survey The subframe position at amount interval；
Measurement arrowband set includes whole arrowbands or part arrowband in system bandwidth.
4. method as claimed in claim 2 or claim 3, it is characterised in that：
The determination measurement interval, including：
In the case of the measurement interval is default, the cell ID of the cell being located according to user terminal Or the mark of user terminal determines the measurement interval.
5. the method as described in claim 1 or 2 or 3, it is characterised in that：
The determination reports the moment and reports pattern, including：
Entering in the case that line period CSI reports, determined according to measurement interval and described report the moment and report Pattern.
6. method as claimed in claim 3, it is characterised in that：
The determination measurement interval, including：
It is default in the measurement interval and enters in the case that line period CSI reports, according to reports the moment Determine the initial subframe position or last subframe position of measurement interval；According at least the one of following information Plant the length for determining measurement interval：Arrowband number, the measurement of an arrowband in measurement arrowband set Time, Hopping time, measurement arrowband set is corresponding reports number of times, reports pattern.
7. method as claimed in claim 6 is default in the measurement interval and enters line period In the case that CSI is reported, it is characterised in that：
If M is the integral multiple of k, then the arrowband number for once reporting corresponding measurement interval measurement is M/k；
Or, in reporting at continuous k time, in reporting for k-1 time therein, corresponding survey is reported every time Amount interval measurement arrowband number beResidue once reports the arrowband of corresponding measurement interval measurement Number is
Wherein, M is the arrowband number in measurement arrowband set, and k is measurement arrowband set pair That what is answered reports number of times；K be default or the node B of evolution configuration.
8. method as claimed in claim 6 is default in the measurement interval and enters line period In the case that CSI is reported, it is characterised in that：
The arrowband number for once reporting corresponding measurement interval measurement is m；
Or, continuousIt is secondary to report, it is thereinIt is secondary report in report every time The arrowband number of corresponding measurement interval measurement is m, remaining once to report what corresponding measurement interval was measured Arrowband number is
Wherein, M is the arrowband number in measurement arrowband set, and m is default or evolution Node B configurations.
9. method as claimed in claim 3, it is characterised in that：
The determination measurement interval, including：
It is default in the measurement interval and carries out in the case that CSI aperiodic reports, according to includes CSI reports the Downlink Control Information DCI of request or the accidental access response RAR of request is reported comprising CSI The subframe position at place determines the initial subframe position or last subframe position of measurement interval；According to The length of at least one determination measurement interval of lower information：Arrowband number in measurement arrowband set, The time of measuring of one arrowband, Hopping time.
10. method as claimed in claim 9, it is characterised in that：
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Machine also includes the information of measurement arrowband set in accessing response RAR.
11. methods as described in claim 1 or 2 or 3, it is characterised in that：
The determination reports the moment, including：
Carrying out in the case that CSI aperiodic reports, according to the descending control that request is reported comprising CSI Information DCI processed reports the subframe position that the accidental access response RAR of request is located to determine comprising CSI It is described to report the moment, or the moment is reported according to measurement interval determines.
12. methods as described in claim 1 or 2 or 3, it is characterised in that：
It is described that CSI measurements are carried out to the arrowband in measurement arrowband set in the measurement interval, bag Include：
The arrowband in measurement arrowband set is carried out according to default order in the measurement interval CSI is measured；Or
The part subframe of the measurement interval is according in default rule correspondence measurement arrowband set Arrowband subclass, measures narrow in measurement arrowband subclass in the part subframe of the measurement interval The CSI of band.
13. methods as described in claim 1 or 2 or 3, it is characterised in that：
CSI aperiodic that carries out is reported, including：
Report comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Machine measured in accessing the measurement interval responded before the subframe that RAR is located or measured and do not reported All or part of arrowband CSI；Or
Report the DCI of request is reported comprising CSI or report the subframe that the RAR of request is located comprising CSI The CSI of all or part of arrowband that will be measured in measurement interval afterwards.
14. methods as claimed in claim 13, it is characterised in that：
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Measurement interval before machine accesses the subframe that response RAR is located includes k measurement interval cycle；K is big In or equal to 1, k be default or the node B of evolution configuration；
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Measurement interval after the subframe that machine access response RAR is located includes h measurement interval cycle；H is big In or equal to 1, h be default or the node B of evolution configuration.
15. methods as described in claim 1 or 2 or 3, it is characterised in that：
It is described enter line period CSI report or CSI aperiodic is reported, including：
Measurement arrowband set includes multiple measurement arrowbands subclass, periodic report or reports institute aperiodic State the average channel quality designator CQI of all arrowbands in measurement arrowband subclass.
16. methods as described in claim 1 or 2 or 3, it is characterised in that：
It is described to report pattern, including：
For cycle CSI is reported：
The CSI of the arrowband in measurement arrowband set is reported successively according to preset order, reports one every time The CSI of individual arrowband；Or reported according to preset order successively narrow in the subset of measurement arrowband set The CSI of band, selects one or more arrowbands every time from the subset of corresponding measurement arrowband set CSI is reported；
For CSI aperiodic is reported：
The CSI of the whole arrowbands in measurement arrowband set is reported, or reports measurement arrowband collection The CSI of part arrowband in conjunction, the number of the part arrowband is default or the node B of evolution matches somebody with somebody Put.
17. methods as described in claim 2 or 7 or 8 or 14, it is characterised in that：
The node B of evolution is by following a)-c) any one configuration information of mode：
A) system information block SIB message；
B) radio resource control RRC signaling；
C) Downlink Control Information DCI or accidental access response RAR.
18. the method for claim 1, it is characterised in that the determination measures arrowband set, Including：Determined in measurement arrowband set according to the arrowband and frequency pattern of the node B of evolution configurations Arrowband.
19. methods as claimed in claim 18, it is characterised in that the node B according to evolution The arrowband and frequency pattern of configuration determine the arrowband in measurement arrowband set, including：
Entering in the case that line period CSI reports, on corresponding measurement interval is reported every time, according to drilling One arrowband and frequency pattern of the node B configurations entered determine the arrowband of measurement.
A kind of 20. devices of channel condition information measurement feedback, are applied to user terminal, it is characterised in that Including：
Analysis module, for determining measurement interval, reporting the moment, report pattern and measurement arrowband set；
Measurement module, for carrying out letter to the arrowband in measurement arrowband set in the measurement interval Channel state information CSI is measured；
Reporting module, is used for into line period CSI reporting or CSI aperiodic is reported.
21. devices as claimed in claim 20, it is characterised in that：
The measurement interval, report the moment, report pattern and measurement at least one of arrowband set Be it is default, or evolution node B configuration.
22. devices as claimed in claim 21, it is characterised in that：
The measurement interval includes one or more of following parameter：The length of measurement interval, measurement interval Repetition period, the initial subframe position of measurement interval, last subframe position of measurement interval and survey The subframe position at amount interval；
Measurement arrowband set includes whole arrowbands or part arrowband in system bandwidth.
23. devices as described in claim 21 or 22, it is characterised in that：
The analysis module, for determining measurement interval, including：
In the case of the measurement interval is default, the cell ID of the cell being located according to user terminal Or the mark of user terminal determines the measurement interval.
24. devices as described in claim 20 or 21 or 22, it is characterised in that：
The analysis module, reports the moment for determination and reports pattern, including：
Entering in the case that line period CSI reports, determined according to measurement interval and described report the moment and report Pattern.
25. devices as claimed in claim 22, it is characterised in that：
The analysis module, for determining measurement interval, including：
It is default in the measurement interval and enters in the case that line period CSI reports, according to reports the moment Determine the initial subframe position or last subframe position of measurement interval；According at least the one of following information Plant the length for determining measurement interval：Arrowband number, the measurement of an arrowband in measurement arrowband set Time, Hopping time, measurement arrowband set is corresponding reports number of times, reports pattern.
26. devices as claimed in claim 25 are default in the measurement interval and enter line period In the case that CSI is reported, it is characterised in that：
If M is the integral multiple of k, then the arrowband number for once reporting corresponding measurement interval measurement is M/k；
Or, in reporting at continuous k time, in reporting for k-1 time therein, corresponding survey is reported every time Amount interval measurement arrowband number beResidue once reports the arrowband of corresponding measurement interval measurement Number is
Wherein, M is the arrowband number in measurement arrowband set, and k is measurement arrowband set pair That what is answered reports number of times；K be default or the node B of evolution configuration.
27. devices as claimed in claim 25 are default in the measurement interval and enter line period In the case that CSI is reported, it is characterised in that：
The arrowband number for once reporting corresponding measurement interval measurement is m；
Or, continuousIt is secondary to report, it is thereinIt is secondary report in report every time The arrowband number of corresponding measurement interval measurement is m, remaining once to report what corresponding measurement interval was measured Arrowband number is
Wherein, M is the arrowband number in measurement arrowband set, and m is default or evolution Node B configurations.
28. devices as claimed in claim 22, it is characterised in that：
The analysis module, for determining measurement interval, including：
It is default in the measurement interval and carries out in the case that CSI aperiodic reports, according to includes CSI reports the Downlink Control Information DCI of request or the accidental access response RAR of request is reported comprising CSI The subframe position at place determines the initial subframe position or last subframe position of measurement interval；According to The length of at least one determination measurement interval of lower information：Arrowband number in measurement arrowband set, The time of measuring of one arrowband, Hopping time.
29. devices as claimed in claim 28, it is characterised in that：
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Machine also includes the information of measurement arrowband set in accessing response RAR.
30. devices as described in claim 20 or 21 or 22, it is characterised in that：
The analysis module, reports the moment for determining, including：
Carrying out in the case that CSI aperiodic reports, according to the descending control that request is reported comprising CSI Information DCI processed reports the subframe position that the accidental access response RAR of request is located to determine comprising CSI It is described to report the moment, or, the moment is reported according to measurement interval determines.
31. devices as described in claim 20 or 21 or 22, it is characterised in that：
The measurement module, for entering to the arrowband in measurement arrowband set in the measurement interval Row CSI is measured, including：
The arrowband in measurement arrowband set is carried out according to default order in the measurement interval CSI is measured；Or
The part subframe of the measurement interval is according in default rule correspondence measurement arrowband set Arrowband subclass, measures narrow in measurement arrowband subclass in the part subframe of the measurement interval The CSI of band.
32. devices as described in claim 20 or 21 or 22, it is characterised in that：
The reporting module, reports for carrying out CSI aperiodic, including：
Report comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Machine measured in accessing the measurement interval responded before the subframe that RAR is located or measured and do not reported All or part of arrowband CSI；Or
Report the DCI of request is reported comprising CSI or report the subframe that the RAR of request is located comprising CSI The CSI of all or part of arrowband that will be measured in measurement interval afterwards.
33. devices as claimed in claim 32, it is characterised in that：
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Measurement interval before machine accesses the subframe that response RAR is located includes k measurement interval cycle；K is big In or equal to 1, k be default or the node B of evolution configuration；
It is described comprising CSI report request Downlink Control Information DCI or comprising CSI report request with Measurement interval after the subframe that machine access response RAR is located includes h measurement interval cycle；H is big In or equal to 1, h be default or the node B of evolution configuration.
34. devices as described in claim 20 or 21 or 22, it is characterised in that：
The reporting module, is used for into line period CSI reporting or CSI aperiodic is reported, including：
Measurement arrowband set includes multiple measurement arrowbands subclass, periodic report or reports institute aperiodic State the average channel quality designator CQI of all arrowbands in measurement arrowband subclass.
35. devices as described in claim 20 or 21 or 22, it is characterised in that：
It is described to report pattern, including：
For cycle CSI is reported：
The CSI of the arrowband in measurement arrowband set is reported successively according to preset order, reports one every time The CSI of individual arrowband；Or reported according to preset order successively narrow in the subset of measurement arrowband set The CSI of band, selects one or more arrowbands every time from the subset of corresponding measurement arrowband set CSI is reported；
For CSI aperiodic is reported：
The CSI of the whole arrowbands in measurement arrowband set is reported, or reports measurement arrowband collection The CSI of part arrowband in conjunction, the number of the part arrowband is default or the node B of evolution matches somebody with somebody Put.
36. devices as described in claim 21 or 26 or 27 or 33, it is characterised in that：
The node B of evolution is by following a)-c) any one configuration information of mode：
A) system information block SIB message；
B) radio resource control RRC signaling；
C) Downlink Control Information DCI or accidental access response RAR.
37. devices as claimed in claim 20, it is characterised in that the analysis module, for true The arrowband set of location survey amount, including：Institute is determined according to the arrowband and frequency pattern of the node B of evolution configurations State the arrowband in measurement arrowband set.
38. devices as claimed in claim 37, it is characterised in that the analysis module, for root The arrowband that the arrowband and frequency pattern configured according to the node B of evolution is determined in measurement arrowband set, Including：Entering in the case that line period CSI reports, on corresponding measurement interval is reported every time, according to One arrowband and frequency pattern of the node B configurations of evolution determine the arrowband of measurement.
CN201510751210.9A 2015-09-25 2015-11-06 A kind of channel condition information measurement feedback method and device Pending CN106559109A (en)

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Cited By (7)

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CN108882266A (en) * 2017-05-12 2018-11-23 维沃移动通信有限公司 Wireless resource management RRM measurement method, network side equipment and terminal
CN109946420A (en) * 2017-12-21 2019-06-28 智能城市网络有限公司 For sending the device and method of atmospheric environment data
CN110430615A (en) * 2018-01-12 2019-11-08 华为技术有限公司 The configuration method and communication device of reporting source of channel state information frequency band
CN110574318A (en) * 2017-05-05 2019-12-13 中兴通讯股份有限公司 Channel state information report transmission
CN111052799A (en) * 2017-09-11 2020-04-21 高通股份有限公司 Techniques and apparatus for random access resource indication using time offsets
WO2020164626A1 (en) * 2019-02-15 2020-08-20 Qualcomm Incorporated Partial-bandwidth feedback for beam combination codebook
US11184887B2 (en) 2017-06-16 2021-11-23 Huawei Technologies Co., Ltd. Transmission method, network device, and terminal

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110574318A (en) * 2017-05-05 2019-12-13 中兴通讯股份有限公司 Channel state information report transmission
CN110574318B (en) * 2017-05-05 2021-08-03 中兴通讯股份有限公司 Channel state information report transmission
CN108882266A (en) * 2017-05-12 2018-11-23 维沃移动通信有限公司 Wireless resource management RRM measurement method, network side equipment and terminal
US11184887B2 (en) 2017-06-16 2021-11-23 Huawei Technologies Co., Ltd. Transmission method, network device, and terminal
US11778633B2 (en) 2017-06-16 2023-10-03 Huawei Technologies Co., Ltd. Transmission method, network device, and terminal
CN111052799A (en) * 2017-09-11 2020-04-21 高通股份有限公司 Techniques and apparatus for random access resource indication using time offsets
US11627607B2 (en) 2017-09-11 2023-04-11 Qualcomm Incorporated Techniques and apparatuses for random access resource indication using a time offset
CN109946420A (en) * 2017-12-21 2019-06-28 智能城市网络有限公司 For sending the device and method of atmospheric environment data
CN110430615A (en) * 2018-01-12 2019-11-08 华为技术有限公司 The configuration method and communication device of reporting source of channel state information frequency band
US11239950B2 (en) 2018-01-12 2022-02-01 Huawei Technologies Co., Ltd. Method for configuring channel state information reporting band and communications apparatus
WO2020164626A1 (en) * 2019-02-15 2020-08-20 Qualcomm Incorporated Partial-bandwidth feedback for beam combination codebook
US11595097B2 (en) 2019-02-15 2023-02-28 Qualcomm Incorporated Partial-bandwidth feedback for beam combination codebook

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