CN106559182A

CN106559182A - The configuration acquisition methods of channel parameter, apparatus and system

Info

Publication number: CN106559182A
Application number: CN201510623574.9A
Authority: CN
Inventors: 蔡剑兴; 陈艺戬; 肖华华; 李儒岳; 鲁照华; 李永; 王瑜新; 吴昊
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-09-25
Filing date: 2015-09-25
Publication date: 2017-04-05
Anticipated expiration: 2035-09-25
Also published as: WO2017050086A1; CN106559182B

Abstract

The invention provides a kind of configuration acquisition methods of channel parameter, apparatus and system, configure configured information by base station of the present invention；Base station limits parameter according to the precoding frequency domain granularity parameter/measurement of configured information configurating channel state reference signal CSI-RS, solve due to estimating the influence of noise brought using conservative approach to CSI, the problem of the estimation performance for causing to obtain optimal, and then reached and lift the effect for estimating performance.

Description

The configuration acquisition methods of channel parameter, apparatus and system

Technical field

The present invention relates to the communications field, the configuration acquisition methods, apparatus and system in particular to a kind of channel parameter.

Background technology

In actual wireless communication system, as the radio propagation path between base station and terminal is easily affected by environment, Wireless channel has very big randomness.Therefore, in order to terminal accurately recover base station transmission signal, it is necessary to letter Channel state information makes accurately estimation.Therefore, channel condition information (Channel State Information, abbreviation CSI) The accuracy of estimation has vital effect for the performance of wireless communication system.

In the LTE versions of early stage, such as in Release 8 (referred to as Rel-8) version, terminal generally adopts public reference signal (Common Reference Signal, referred to as CRS) carries out CSI estimations, the reference signal (Reference that this version is used Signal, abbreviation RS) be non-precoded RS, this RS is typically using antenna and the side that maps one by one of antenna port of base station Formula is transmitted.In Rel-10 versions, in order to allow terminal to estimate and feed back bigger maximum 8 antenna ports The channel condition information (Channel State Information, referred to as CSI) of bandwidth, introduces new RS, i.e. channel status letter Breath reference markss CSI-RS.Not only it had been used for CSI from the RS in earlier version to estimate but also different for signal demodulation, new introduction CSI-RS is sent by base station, and dedicated for carrying out the reference signal of channel measurement, terminal is entered based on the frequency pilot sign that base station sends Row CSI estimates, obtains information of the different dual-mode antennas in the channel matrix H of different running time-frequency resource positions, can be based on then letter Road matrix H carries out CSI quantizations and feedback.

With the further evolution of 3GPP standards, newly introduced for beam shaping in Rel-13 versions again CSI-RS (Beamformed CSI-RS, referred to as BFed CSI-RS).BFed CSI-RS refer to base station before transmitting CSI-RS, Carry out precoding processing first to CSI-RS, so-called precoding, be exactly in the case of known channel state information, by Transmitting terminal does an advance process to the signal for sending, to facilitate receiver to carry out signal detection.In LTE system, commonly use Precoding technique be exactly to choose from predefined pre-coding matrix set from suitable pre-coding matrix is weighted to RS Reason, is then gone out by Base Transmitter again.The BFed CSI-RS that Rel-13 is introduced, it is however generally that antenna port is between antenna for base station It is not man-to-man mapping, but the mapping of one-to-many, and precoding technique, different precodings are employed in mapping Different beam directions can be corresponded to.

BFed CSI-RS have various configurations method to realize, mainly including following several situations：

The many set CSI-RS configuration of configuration：One wave beam can correspond to a set of CSI-RS configurations configuration, this The motility of the mode of kind is high, can be that different configuration configure different pilot parameters (cycle port number, power parameters Deng), but configuration signal expense is big.Each CSI-RS configuration includes multiple ports, and these ports typically have identical Precoding, terminal select wave beam as to select CSI-RS configuration；

A set of CSI-RS configuration are configured, but one can be corresponded to comprising multiple mono- wave beam of resource collection resource set Resource set, this mode motility are general, it is impossible to configure different pilot parameters (cycle ends for different configuration Mouthful number, power parameter etc.), but configuration signal expense is few, and resource set are different, and corresponding wave beam is different, can be with resource Comprising multiple ports, these ports typically have identical precoding, and terminal selects wave beam as to select resource set.

The a set of resource set of a set of CSI-RS configuration are configured, but includes multiple port group, port group are different Corresponding wave beam is different, and one or more ports can be included in port group, and these ports typically have identical precoding, Terminal selects wave beam as to select port group.

The selection of BFed CSI-RS typically to be carried out the feedback of Beam Index, and Beam Index generally 1 can also be many It is individual；The larger application scenarios of the latter's expense can lack.

In current protocol version, when the pilot tone for CSI-RS carries out the measurement of channel, following technology can be typically adopted：Terminal It is determined that current CSI quantifies corresponding reference resources (CSI Reference Resource) position, the CSI quantifies corresponding with reference to money Source is normally at the CSI-RS places subframe for needing to carry out quantifying feedback for which of the last transmission, terminal-pair CSI-RS institute Subframe and before X CSI-RS transmission subframe in the CSI-RS that sends carry out united CSI estimations, it is related by time domain Property carry out pressure and make an uproar, lifting CSI estimates performance, it is assumed here that the CSI-RS included in the pilot frequency configuration of same set of CSI-RS has Identical precoding does not carry out precoding, therefore the terminal of different vendor can be according to the situation of relativity of time domain flexibly really Determine the size of X.On the other hand, the CSI of the Resource Block in each subframe of terminal-pair estimates it is each money according to receiving What the CSI-RS in source block was estimated, it is assumed that the CSI-RS included in the pilot frequency configuration of same set of CSI-RS has identical pre- Coding does not carry out precoding, then terminal can be carried out to Y CSI-RS on the multiple Resource Block in same Resource Block United CSI estimates, carries out pressure by frequency domain correlation and make an uproar, lifts CSI and estimate performance.

3GPP also introduces the concept of CSI process, and base station can configure multiple CSI process, each CSI process for terminal Equivalent to a feedback process, it is independent between each CSI process, parameter configuration can be carried out respectively.To CSI process Configuration can be divided into two kinds of Class A and Class B feedback classifications, the former is mainly used in the feedback under non-precoded CSI-RS, Feedback quantity is larger, the first kind pre-coding matrix index of the statistics for for example needing to feed back long-term/broadband (Precoding Matrix Index, Referred to as PMI) and short-term/subband the 2nd PMI, the latter only needs to feed back less channel information based on precoding CSI-RS, 2nd PMI of such as short-term/subband.

In LTE system, terminal frequently be coherence detection, it is therefore necessary to channel is estimated.In general, Using coherence detection, base station must be inserted into known RS in sending signal structure, and this CSI methods of estimation are also referred to as CSI methods of estimation based on pilot tone.For the classification of CSI methods of estimation, from realizing that criterion can be divided into linear least mean-square mistake Difference (Linear Minimum Mean Square Error, referred to as LMMSE) estimates and least-squares estimation (Least Square, letter Referred to as LS) estimate etc..

The defect of existing CSI estimation techniques：From in terms of time domain angle, as CSI-RS can be flexible with different subframe positions Precoding is carried out, the precoding of different subframe positions may be different, if this mode causes terminal to continue to make in channel measurement The estimation of joint CSI is carried out with arbitrary X subframe, it may appear that estimate mistake, because the correlation between different precoded pilots Property is affected by precoding weights, and precoding weights terminal cannot be predicted.Likewise, from terms of frequency domain angle, same subframe The precoding of the CSI-RS on interior different resource block may be different, if this mode causes terminal to continue to make in channel measurement The estimation of joint CSI is carried out with arbitrary Y Resource Block, mistake also occurs.Therefore in Rel-13 versions, in order to not bring Serious estimation mistake, can not only utilize dependency to suppress the impact that noise brings, causes not using than more conservative method Optimal estimation performance can be obtained, effective solution is not yet proposed at present.

The content of the invention

The invention provides a kind of configuration acquisition methods of channel parameter, apparatus and system, with least solve in correlation technique due to The influence of noise that brought using conservative approach is estimated to CSI, the problem of the estimation performance for causing to obtain optimal.

According to an aspect of the invention, there is provided a kind of collocation method of channel parameter, including：Base station configures configured information； The base station is limited according to the precoding frequency domain granularity parameter/measurement of the configured information configurating channel state reference signal CSI-RS Parameter.

Further, the configured information includes at least one of：High-rise frequency domain granularity parameter configuration signaling, physical layer frequency domain Grain size parameter signaling is indicated, the non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal refers to Show, feed back classification Class configured information, the classification Type configured information of channel status reference signal CSI-RS and feedback side Formula configured information.

Further, precoding frequency domain granularity of the base station according to the configured information configurating channel state reference signal CSI-RS The step of parameter/measurement limits parameter includes：Mode one, when the configured information is the high-rise frequency domain granularity parameter configuration signaling Or during the physical layer frequency domain granularity parameter signalling instruction, the precoding frequency domain granularity parameter/measurement for configuring the CSI-RS limits ginseng Several steps include：Indicate to match somebody with somebody according to the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signalling The precoding frequency domain granularity parameter is put for K；Mode two, when the configured information is that the PMI disabling signalings are indicated, The step of precoding frequency domain granularity parameter/measurement restriction parameter for configuring the CSI-RS, includes：Judge the PMI disabling Signaling indicates whether to enable；In judged result for, in the case of being, configuration precoding frequency domain granularity parameter K is X；Sentencing In the case that disconnected result is no, it is Y to configure precoding frequency domain granularity parameter K；Wherein, X and Y is unequal, X and Y For integer, and X<Y；Mode three, when the configured information is that the feedback model configuration signal is indicated, configures the CSI-RS Precoding frequency domain granularity parameter/measurement include the step of limit parameter：Detect the feedback model configuration signal indicate in feedback Pattern；When the feedback model is first kind preset mode set, it is X to configure precoding frequency domain granularity parameter K；When When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, the precoding frequency domain granularity ginseng is configured Number K is Y；Mode four, when the configured information is the feedback classification Class configured information, configures the CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：Feedback sort in the detection feedback classification Class configured information Other Class；When feedback classification Class is the second feedback classification, it is X to configure precoding frequency domain granularity parameter K； When feedback classification Class is the first feedback classification, it is Y to configure precoding frequency domain granularity parameter K；Mode five, when When the configured information is the classification Type configured information of channel status reference signal CSI-RS, configure the CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：Detect the classification of channel status reference signal CSI-RS Classification Type in Type configured informations；When classification Type is first category, the precoding frequency domain granularity parameter is configured K is X；When classification Type is second category, it is Y to configure precoding frequency domain granularity parameter K；Mode six, when When the configured information is the feedback system configured information, the precoding frequency domain granularity parameter/measurement for configuring the CSI-RS is limited The step of parameter, includes：Detect the feedback system in the feedback system configured information；When the feedback system is periodic feedback When, it is X to configure precoding frequency domain granularity parameter K；When the feedback system is that aperiodicity is fed back, configure described pre- Encoded frequency domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is less than more than or equal to 1, Y Or M is equal to, M is that current bandwidth maximum wireless carries RB numbers, and X<Y.

Further, precoding frequency domain granularity parameter K is determined according to the current bandwidth.

Further, classification Type in the classification Type configured information of channel status reference signal CSI-RS includes following At least one：Cycle CSI-RS, CSI-RS aperiodic, precoding CSI-RS, non-precoded CSI-RS, full bandwidth CSI-RS, The CSI-RS of fractional bandwidth CSI-RS, the CSI-RS of aggregation configuration and non-polymeric configuration.

Further, the precoding frequency domain granularity parameter includes：CSI-RS binding states and/or CSI-RS binding granularities.

Further, method also includes：The base station is by the high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain grain Degree parameter signalling indicates the binding state of the configuration CSI-RS, and the binding state includes：Bind or without binding.

According to an aspect of the present invention, there is provided the acquisition methods of another kind of channel parameter, including：Terminal receives what base station sent Configured information；The terminal obtains the precoding frequency domain granularity parameter of channel status reference signal CSI-RS according to the configured information / measurement limits parameter.

Further, the configured information includes at least one of：High-rise frequency domain granularity parameter configuration signaling, physical layer frequency domain Grain size parameter signaling is indicated, the non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal refers to Show, feed back classification Class configured information, the classification Type configured information of channel status reference signal CSI-RS, feedback side Formula configured information and default grain size parameter.

Further, the terminal obtains the precoding frequency domain granularity of channel status reference signal CSI-RS according to the configured information The step of parameter/measurement limits parameter includes：Mode one, when the configured information is the high-rise frequency domain granularity parameter configuration signaling Or during the physical layer frequency domain granularity parameter signalling instruction, the precoding frequency domain granularity parameter/measurement for obtaining the CSI-RS limits ginseng Several steps include：Indicate to obtain according to the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signalling The precoding frequency domain granularity parameter is taken for K；Mode two, when the configured information is that the PMI disabling signalings are indicated, The step of precoding frequency domain granularity parameter/measurement restriction parameter for obtaining the CSI-RS, includes：Judge the PMI disabling Signaling indicates whether to enable；In judged result for, in the case of being, acquisition precoding frequency domain granularity parameter K is X；Sentencing In the case that disconnected result is no, it is Y to obtain precoding frequency domain granularity parameter K；Wherein, X and Y is unequal, X and Y For integer, and X<Y；Mode three, when the configured information is that the feedback model configuration signal is indicated, obtains the CSI-RS Precoding frequency domain granularity parameter/measurement include the step of limit parameter：Detect the feedback model configuration signal indicate in feedback Pattern；When the feedback model is first kind preset mode set, it is X to obtain precoding frequency domain granularity parameter K；When When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, the precoding frequency domain granularity ginseng is obtained Number K is Y；Mode four, when the configured information is the feedback classification Class configured information, obtains the CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：Feedback sort in the detection feedback classification Class configured information Other Class；When feedback classification Class is the second feedback classification, it is X to obtain precoding frequency domain granularity parameter K； When feedback classification Class is the first feedback classification, it is Y to obtain precoding frequency domain granularity parameter K；Mode five, when When the configured information is the classification Type configured information of channel status reference signal CSI-RS, obtain the CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：Detect the classification of channel status reference signal CSI-RS Classification Type in Type configured informations；When classification Type is first category, the precoding frequency domain granularity parameter is obtained K is X；When classification Type is second category, it is Y to obtain precoding frequency domain granularity parameter K；Mode six, when When the configured information is the feedback system configured information, the precoding frequency domain granularity parameter/measurement for obtaining the CSI-RS is limited The step of parameter, includes：Detect the feedback system in the feedback system configured information；When the feedback system is periodic feedback When, it is X to obtain precoding frequency domain granularity parameter K；When the feedback system is that aperiodicity is fed back, obtain described pre- Encoded frequency domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is less than more than or equal to 1, Y Or M is equal to, M is that current bandwidth maximum wireless carries RB numbers, and X<Y；Mode seven, when the configured information is described pre- If grain size parameter when, include the step of the precoding frequency domain granularity parameter/measurement restriction parameter for obtaining the CSI-RS：According to institute It is K to state default grain size parameter and obtain the precoding frequency domain granularity parameter.

Further, methods described also includes：The terminal is by the high-rise frequency domain granularity parameter configuration signaling or physical layer frequency Domain grain size parameter signaling indicates to obtain the binding state of the CSI-RS, and the binding state includes：Bind or without binding.

According to an aspect of the invention, there is provided the collocation method of another channel parameter, including：Base station configures configured information； The base station is limited according to the precoding time domain grain size parameter/measurement of the configured information configurating channel state reference signal CSI-RS Parameter.

Further, the configured information includes at least one of：The non-enable PMI disabling letters of precoding matrix indicators Order is indicated, feedback model configuration signal is indicated, feedback classification Class configured information, channel status reference signal configuration CSI-RS The Report Type of configuration configured informations, feedback system configured information, antenna port number configured information and CSI.

Further, precoding time domain granularity of the base station according to the configured information configurating channel state reference signal CSI-RS The step of parameter/measurement limits parameter includes：Mode one, when the configured information is that the PMI disabling signalings are indicated, The step of precoding time domain grain size parameter/measurement restriction parameter for configuring the CSI-RS, includes：Judge the PMI disabling Signaling indicates whether to enable；In judged result for, in the case of being, the configuration precoding time domain grain size parameter K is X；Sentencing In the case that disconnected result is no, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X and Y For integer, and X<Y；Mode two, when the configured information is that the feedback model configuration signal is indicated, configurating channel state The step of precoding time domain grain size parameter of reference signal CSI-RS/measurement limits parameter includes：Detect that the feedback model matches somebody with somebody confidence Feedback model in order instruction；When the feedback model is first kind preset mode set, the precoding time domain granularity is configured Parameter K is X；When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, configure described pre- Coded time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；Mode three, works as institute State configured information for it is described feedback classification Class configured information when, the precoding time domain of configurating channel state reference signal CSI-RS The step of grain size parameter/measurement limits parameter includes：Feedback classification Class in the detection feedback classification Class configured information； When feedback classification Class is the second feedback classification, it is X to configure the precoding time domain grain size parameter K；When the feedback When classification Class is the first feedback classification, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is that current bandwidth maximum wireless carries RB numbers to X, and X<Y；Mode four, when the configured information is the channel status reference signal configuration CSI-RS configuration configured informations When, include the step of the precoding time domain grain size parameter of configurating channel state reference signal CSI-RS/measurement limits parameter：The base Stand a set of CSI-RS configuration of configuration, and the CSI-RS configuration include multiple resource collections, a wave beam pair A resource collection is answered, the different corresponding wave beams of the resource collection are different, in the resource collection, include multiple ports, it is described Port has identical precoding；After the base station determines CSI-RS configuration, by high-level signaling/physical layer signaling Indicate that the configuration precoding time domain grain size parameter is K；Mode five, when the configured information is the feedback system configured information When, include the step of the precoding time domain grain size parameter of configurating channel state reference signal CSI-RS/measurement limits parameter：Detection institute State the feedback system in feedback system configured information；When the feedback system is periodic feedback, the precoding time domain is configured Grain size parameter K is X；When the feedback system is that aperiodicity is fed back, it is Y to configure the precoding time domain grain size parameter K； Wherein, X and Y is unequal, and X and Y are integer, and X is less than or equal to M more than or equal to 1, Y, M be current bandwidth most Big radio bearer RB numbers, and X<Y；Mode six, when the configured information is the antenna port number configured information, configuration The step of precoding time domain grain size parameter of channel status reference signal CSI-RS/measurement limits parameter includes：When the base station is used for When the antenna port number of transmission is M1, it is X to configure the precoding time domain grain size parameter K；When the base station is used for transmission When antenna port number is M2, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X and Y For integer, when M1 is less than or equal to M2, X is more than or equal to Y；Mode seven, when the configured information is the report of CSI During type, include the step of the precoding time domain grain size parameter of configurating channel state reference signal CSI-RS // measurement limits parameter： Can periodically reset with the periodic feedback of the Report Type of the CSI according to time domain grain size parameter, the base station passes through The most long period of the Report Type of the CSI is configuring the reset cycle and/or sub-frame offset of binding state.

Further, the precoding time domain grain size parameter includes：CSI-RS binding states and/or CSI-RS binding granularities.

According to an aspect of the invention, there is provided the acquisition methods of another channel parameter, including：Terminal receives base station and sends Configured information；

The terminal obtains the precoding time domain grain size parameter/measurement of channel status reference signal CSI-RS according to the configured information Limit parameter.

Further, the configured information includes at least one of：The non-enable PMI disabling letters of precoding matrix indicators Order indicate, feedback model configuration signal indicate, feedback classification Class configured information, resource Resource specific configured informations, Feedback system configured information, antenna port number configured information and CSI report type.

Further, the terminal obtains the precoding time domain granularity of channel status reference signal CSI-RS according to the configured information The step of parameter/measurement limits parameter includes：Mode one, when the configured information is that the PMI disabling signalings are indicated, The step of precoding time domain grain size parameter/measurement restriction parameter for obtaining the CSI-RS, includes：Judge the PMI disabling Signaling indicates whether to enable；In judged result for, in the case of being, the acquisition precoding time domain grain size parameter K is X；Sentencing In the case that disconnected result is no, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X and Y For integer, and X<Y；Mode two, when the configured information is that the feedback model configuration signal is indicated, obtains channel status The step of precoding time domain grain size parameter of reference signal CSI-RS/measurement limits parameter includes：Detect that the feedback model obtains letter Feedback model in order instruction；When the feedback model is first kind preset mode set, the precoding time domain granularity is obtained Parameter K is X；When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, obtain described pre- Coded time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；Mode three, works as institute State configured information for it is described feedback classification Class configured information when, obtain channel status reference signal CSI-RS precoding time domain The step of grain size parameter/measurement limits parameter includes：Feedback classification Class in the detection feedback classification Class configured information； When feedback classification Class is the second feedback classification, it is X to obtain the precoding time domain grain size parameter K；When the feedback When classification Class is the first feedback classification, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X and Y are integer, and X<Y；Mode four, when the configured information is the resource Resource specific configured informations, The step of precoding time domain grain size parameter/measurement restriction parameter for obtaining channel status reference signal CSI-RS, includes：The terminal according to The resource included in a set of CSI-RS configuration that base station configuration is determined according to the resource Resource specific configured informations Set number；The terminal obtains the precoding of channel status reference signal CSI-RS according to the high level for receiving/physical layer indication signaling Time domain grain size parameter is K；Mode five, when the configured information is the feedback system configured information, obtains channel status ginseng The step of precoding time domain grain size parameter/measurement restriction parameter for examining signal CSI-RS, includes：Detect the feedback system configured information In feedback system；When the feedback system is periodic feedback, it is X to obtain the precoding time domain grain size parameter K；When When the feedback system is that aperiodicity is fed back, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X<Y；Mode Six, when the configured information is the antenna port number configured information, obtain the precoding of channel status reference signal CSI-RS The step of time domain grain size parameter/measurement limits parameter includes：When the terminal determine base station for transmission antenna port number be M1 When, it is X to obtain the precoding time domain grain size parameter K；When the terminal determine base station for transmission antenna port number be M2 When, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X and Y is unequal, and X and Y are integer, when M1 it is little In or equal to M2 when, X be more than or equal to Y；Mode seven, when Report Type of the configured information for CSI, obtains channel The step of precoding time domain grain size parameter of state reference signal CSI-RS // measurement limits parameter includes：The terminal is by described The most long period of the Report Type of CSI determines the sub-frame offset of the periodic reset and/or binding state of the binding state of CSI-RS.

According to a further aspect in the invention, there is provided a kind of configuration device of channel parameter, including：First configuration module, is used for Configuration configured information；Second configuration module, for prelisting according to the configured information configurating channel state reference signal CSI-RS Code frequency domain granularity parameter/measurement limits parameter.

Further, include at least one of in the configured information：High-rise frequency domain granularity parameter configuration signaling, physical layer frequency Domain grain size parameter signaling is indicated, the non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal Indicate, feed back classification Class configured information, the classification Type configured information of channel status reference signal CSI-RS and feedback In the case of mode configured information, second configuration module, including：First dispensing unit, for when the configured information being When the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signalling are indicated, configure the CSI-RS's Precoding frequency domain granularity parameter/measurement limits parameter, wherein, according to the high-rise frequency domain granularity parameter configuration signaling or the physics Layer frequency domain granularity parameter signalling indicates that the configuration precoding frequency domain granularity parameter is K；Or, the second dispensing unit, for working as When the configured information is that the PMI disabling signalings are indicated, the precoding frequency domain granularity parameter/survey of the CSI-RS is configured Amount limits parameter, wherein, judge that the PMI disabling signalings indicate whether to enable；In the case of being to be in judged result, Precoding frequency domain granularity parameter K is configured for X；In the case where judged result is no, the precoding frequency domain granularity is configured Parameter K is Y, wherein, X is unequal with Y, and X and Y are integer, and X<Y；Or, the 3rd dispensing unit is used for When the configured information is that the feedback model configuration signal is indicated, configure the precoding frequency domain granularity parameter of the CSI-RS/ Measurement limits parameter, wherein, detect the feedback model in the feedback model configuration signal instruction；When the feedback model is the During one class preset mode set, it is X to configure precoding frequency domain granularity parameter K；When the feedback model is preset for Equations of The Second Kind When set of modes or the 3rd class preset mode set, it is Y to configure precoding frequency domain granularity parameter K；Or, the 4th configuration Unit, for when the configured information is the feedback classification Class configured information, configuring the precoding frequency of the CSI-RS Domain grain size parameter/measurement limits parameter, wherein, detect feedback classification Class in the feedback classification Class configured information；When When feedback classification Class is the second feedback classification, it is X to configure precoding frequency domain granularity parameter K；When the feedback sort When other Class is the first feedback classification, it is Y to configure precoding frequency domain granularity parameter K；Or, the 5th dispensing unit is used When the classification Type configured information that the configured information is channel status reference signal CSI-RS, the CSI-RS is configured Precoding frequency domain granularity parameter/measurement limit parameter, wherein, detect classification Type of channel status reference signal CSI-RS Classification Type in configured information；When classification Type is first category, configuring precoding frequency domain granularity parameter K is X；When classification Type is second category, it is Y to configure precoding frequency domain granularity parameter K；Or, the 6th configuration Unit, for when the configured information is the feedback system configured information, configuring the precoding frequency domain granularity of the CSI-RS Parameter/measurement limits parameter, wherein, detect the feedback system in the feedback system configured information；For when the feedback system For periodic feedback when, it is X to configure precoding frequency domain granularity parameter K；When the feedback system is that aperiodicity is fed back, Precoding frequency domain granularity parameter K is configured for Y；Wherein, X and Y is unequal, and X and Y are integer, and X is more than or waits M is less than or equal in 1, Y, M is that current bandwidth maximum wireless carries RB numbers, and X<Y.

According to a further aspect in the invention, there is provided the acquisition device of another kind of channel parameter, including：Receiver module, for connecing Receive the configured information that base station sends；Acquisition module, for obtaining channel status reference signal CSI-RS according to the configured information Precoding frequency domain granularity parameter/measurement limits parameter.

Further, receiver module, for receiving the configured information of base station transmission；Acquisition module, for indicating to believe according to described Breath obtains the precoding frequency domain granularity parameter/measurement of channel status reference signal CSI-RS and limits parameter.

According to a further aspect in the invention, there is provided the configuration device of another channel parameter, including：First configuration module, uses In configuration configured information；Second configuration module, for according to the pre- of the configured information configurating channel state reference signal CSI-RS Coded time domain grain size parameter/measurement limits parameter.

Further, include at least one of in the configured information：The non-enable PMI disabling of precoding matrix indicators Signaling is indicated, feedback model configuration signal is indicated, feedback classification Class configured information, the channel status reference signal configuration The Report Type of CSI-RS configuration configured informations, feedback system configured information, antenna port number configured information and CSI In the case of, second configuration module includes：First dispensing unit, is the PMI disabling for working as the configured information When signaling is indicated, the precoding time domain grain size parameter/measurement for configuring the CSI-RS limits parameter, wherein, judge the PMI Disabling signalings indicate whether to enable；In judged result in the case of being, to configure the precoding time domain grain size parameter K it is X；In the case where judged result is no, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X and Y are integer, and X<Y；Or, the second dispensing unit, for matching somebody with somebody confidence for the feedback model when the configured information When order is indicated, the precoding time domain grain size parameter/measurement of configurating channel state reference signal CSI-RS limits parameter, wherein, detection Feedback model in the feedback model configuration signal instruction；When the feedback model is first kind preset mode set, configuration The precoding time domain grain size parameter K is X；When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode During set, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y is unequal, and X and Y is integer, and X<Y；Or, the 3rd dispensing unit, for when the configured information is the feedback classification Class configured information, with confidence The precoding time domain grain size parameter of road state reference signal CSI-RS/measurement limits parameter, wherein, detect feedback classification Class Feedback classification Class in configured information；When feedback classification Class is the second feedback classification, when configuring the precoding Domain grain size parameter K is X；When feedback classification Class is the first feedback classification, the precoding time domain grain size parameter is configured K is Y；Wherein, X and Y is unequal, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is to work as to X Front bandwidth maximum wireless carries RB numbers, and X<Y；Or, the 4th dispensing unit is the letter for working as the configured information During road state reference signal configuration CSI-RS configuration configured informations, configurating channel state reference signal CSI-RS's prelists Code time domain grain size parameter/measurement limits parameter, wherein, configure a set of CSI-RS configuration, the CSI-RS Configuration includes multiple resource collections, wave beam one resource collection of correspondence, the different corresponding wave beams of the resource collection Multiple ports are included in difference, the resource collection, the port has identical precoding；It is determined that CSI-RS configuration Afterwards, indicate that the configuration precoding time domain grain size parameter is K by high-level signaling/physical layer signaling；Or, the 5th dispensing unit, For when the configured information be the feedback system configured information when, during the precoding of configurating channel state reference signal CSI-RS Domain grain size parameter/measurement limits parameter, wherein, detect the feedback system in the feedback system configured information；When the feedback side When formula is periodic feedback, it is X to configure the precoding time domain grain size parameter K；When the feedback system is fed back for aperiodicity When, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y is unequal, and X and Y are integer, and X is more than Or M is less than or equal to equal to 1, Y, M is that current bandwidth maximum wireless carries RB numbers, and X<Y；Or, the 6th configuration Unit, for when the configured information be the antenna port number configured information when, configurating channel state reference signal CSI-RS's Precoding time domain grain size parameter/measurement limits parameter, wherein, when the antenna port number that the base station is used for transmission is M1, match somebody with somebody The precoding time domain grain size parameter K is put for X；When the antenna port number that the base station is used for transmission is M2, configuration is described Precoding time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y is integer, when M1 is less than or equal to M2 When, X is more than or equal to Y；7th dispensing unit, for when the configured information for CSI Report Type when, configurating channel The precoding time domain grain size parameter of state reference signal CSI-RS/measurement is limited, wherein, can be with described according to time domain grain size parameter The periodic feedback of the Report Type of CSI and periodically reset, tied up to configure by the most long period of the Report Type of the CSI Determine the reset cycle and/or sub-frame offset of state.

According to a further aspect in the invention, there is provided the acquisition device of another channel parameter, including：Receiver module, for connecing Receive the configured information that base station sends；Acquisition module, for obtaining channel status reference signal CSI-RS according to the configured information Precoding time domain grain size parameter/measurement limits parameter.

Further, include at least one of in the configured information：The non-enable PMI disabling of precoding matrix indicators Signaling is indicated, feedback model configuration signal is indicated, feedback classification Class configured information, resource Resource specific indicate letter In the case of breath, feedback system configured information, antenna port number configured information and CSI report type, the acquisition module includes： First acquisition unit, for when the configured information is that the PMI disabling signalings are indicated, obtaining the pre- of the CSI-RS Coded time domain grain size parameter/measurement limits parameter, wherein, judge that the PMI disabling signalings indicate whether to enable；Judging As a result for, in the case of being, the acquisition precoding time domain grain size parameter K is X；In the case where judged result is no, obtain The precoding time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；Or, Second acquisition unit, for when the configured information is that the feedback model configuration signal is indicated, obtaining channel status with reference to letter The precoding time domain grain size parameter of number CSI-RS/measurement limits parameter, wherein, detect that the feedback model is obtained during signaling indicates Feedback model；When the feedback model is first kind preset mode set, it is X to obtain the precoding time domain grain size parameter K； When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, the precoding time domain granularity is obtained Parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；Or, the 3rd acquiring unit is used for When the configured information is the feedback classification Class configured information, the precoding of channel status reference signal CSI-RS is obtained Time domain grain size parameter/measurement limits parameter, wherein, detect feedback classification Class in the feedback classification Class configured information； When feedback classification Class is the second feedback classification, it is X to obtain the precoding time domain grain size parameter K；When the feedback When classification Class is the first feedback classification, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X and Y are integer, and X<Y；Or, the 4th acquiring unit is the resource Resource specific for working as the configured information During configured information, the precoding time domain grain size parameter/measurement for obtaining channel status reference signal CSI-RS limits parameter, wherein, according to The resource included in a set of CSI-RS configuration that base station configuration is determined according to the resource Resource specific configured informations Set number；The precoding time domain granularity of channel status reference signal CSI-RS is obtained according to the high level for receiving/physical layer indication signaling Parameter is K；Or, the 5th acquiring unit, for when the configured information is the feedback system configured information, obtaining letter The precoding time domain grain size parameter of road state reference signal CSI-RS/measurement limits parameter, wherein, detect that the feedback system is indicated Feedback system in information；When the feedback system is periodic feedback, it is X to obtain the precoding time domain grain size parameter K； When the feedback system is that aperiodicity is fed back, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X<Y；Or Person, the 6th acquiring unit, for when the configured information is the antenna port number configured information, obtaining channel status reference The precoding time domain grain size parameter of signal CSI-RS/measurement limits parameter, wherein, when the terminal determine base station for transmission day When line port number is M1, it is X to obtain the precoding time domain grain size parameter K；When the terminal determine base station for transmission When antenna port number is M2, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X and Y For integer, when M1 is less than or equal to M2, X is more than or equal to Y；7th acquiring unit, for when the configured information being During the Report Type of CSI, the precoding time domain grain size parameter/measurement for obtaining channel status reference signal CSI-RS limits parameter, its In, the periodic reset and/or binding state of the binding state of CSI-RS are determined by the most long period of the Report Type of the CSI Sub-frame offset.

According to another aspect of the invention, there is provided a kind of configuration of channel parameter obtains system, including：Base station and terminal, base Stand, wherein, base station is that a kind of acquisition of the acquisition device and another channel parameter of above-mentioned channel parameter is filled The acquisition device of arbitrary channel parameter in putting；Terminal is the acquisition device and another channel parameter of above-mentioned another kind of channel parameter Any one of acquisition device channel parameter acquisition device.

By the present invention, configured information is configured using base station；Base station is according to configured information configurating channel state reference signal CSI-RS Precoding frequency domain granularity parameter/measurement limit parameter.Solve due to estimating the influence of noise brought using conservative approach to CSI, The problem of the estimation performance for causing to obtain optimal, and then reached and lift the effect for estimating performance.

Description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the present invention's shows Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is the flow chart of the collocation method of channel parameter according to embodiments of the present invention；

Fig. 2 is a kind of flow chart of the acquisition methods of channel parameter according to embodiments of the present invention；

Fig. 3 is the flow chart of the collocation method of another kind of channel parameter according to embodiments of the present invention；

Fig. 3-a are to bind configuration status schematic diagram when granularity is K=2；

Fig. 4 is the flow chart of the acquisition methods of another kind of channel parameter according to embodiments of the present invention；

Fig. 4-a are that terminal determines CSI-RS configuration statuses for the CSI Combined estimator schematic diagrams after K=2；

Fig. 5-a are the schematic diagrams that binding state and/or sub-frame offset are reset according to most long period；

Fig. 5 is the structured flowchart of the configuration device of channel parameter according to embodiments of the present invention；

Fig. 6 is a kind of structured flowchart of the configuration device of channel parameter according to embodiments of the present invention；

Fig. 7 is the structured flowchart of the acquisition device of channel parameter according to another embodiment of the present invention；

Fig. 8 is a kind of structured flowchart of the acquisition device of channel parameter according to another embodiment of the present invention；And,

Fig. 9 is the structure chart that the configuration of channel parameter according to embodiments of the present invention obtains acquisition system.

Specific embodiment

Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that in the case where not conflicting, The feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, " second " etc. are to use In the similar object of difference, without being used to describe specific order or precedence.

In acquisition methods, apparatus and system in a kind of channel parameter that the embodiment of the present application is provided, base station includes but is not limited to： The various Wireless Telecom Equipments such as macro base station, micro-base station, WAP.Terminal is included but is not limited to：Data card, mobile phone, pen Remember the various terminals such as this computer, PC, panel computer, personal digital assistant, bluetooth and relaying, remote device, nothing The various Wireless Telecom Equipments such as line access point.

Embodiment one

A kind of collocation method of channel parameter is provided in the present embodiment, and Fig. 1 is channel parameter according to embodiments of the present invention The flow chart of acquisition methods, as shown in figure 1, in base station side, the flow process comprises the steps：

Step S102, base station configuration configured information；

Step S104, precoding frequency domain granularity parameter/survey of the base station according to configured information configurating channel state reference signal CSI-RS Amount limits parameter.

Specifically, in base station side, the acquisition methods of the channel parameter that the embodiment of the present application is provided go for channel condition information The method of estimation of (Channel State Information, abbreviation CSI), is joined by configuring the precoding frequency domain granularity of CSI-RS It is several that CSI is estimated, lift the performance that CSI estimates, wherein, first, base station configuration configured information, secondly, base station according to According to the precoding frequency domain granularity parameter of configured information configurating channel state reference signal CSI-RS.

By above-mentioned steps, configured information is configured by base station；Base station is according to configured information configurating channel state reference signal CSI-RS Precoding frequency domain granularity parameter, solve due to estimating the influence of noise that brings using conservative approach to CSI, cause to obtain The problem of estimation performance most preferably is obtained, and then has reached the effect for lifting estimation performance.

Further, configured information includes at least one of：High-rise frequency domain granularity parameter configuration signaling, physical layer frequency domain granularity Parameter signalling is indicated, the non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal is indicated, Feedback classification Class configured information, the classification Type configured information of channel status reference signal CSI-RS and feedback system indicate letter Breath.

Further, precoding frequency domain granularity parameter/measurement of the base station according to configured information configurating channel state reference signal CSI-RS The step of limiting parameter includes：

Mode one, when configured information is high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter signalling is indicated, The step of precoding frequency domain granularity parameter/measurement of configuration CSI-RS limits parameter includes：

Here allocating pre-coding frequency domain grain is indicated according to high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter signalling Degree parameter is K, and precoding frequency domain granularity parameter K is 1, and makes K equal to M, wherein, M is the wireless of current bandwidth maximum Carry RB numbers；

Specifically, scene one, when configured information is high-rise frequency domain granularity parameter configuration signaling, base station configuration CSI-RS's prelists Code frequency domain granularity parameter/measurement includes the step of limiting parameter：

Base station configures the state of CSI-RS, including the binding state of CSI-RS and binding granularity K by current bandwidth.With roomy By as shown in table 1 below, table 1 is bandwidth and binding Relationship Between Size table to little and relation between binding granularity.

Table 1

Wherein, K_i(1≤i≤6), U, V are integer and U ＞ 20, V ＞ 100, and K₀≤K₁≤K₂≤K₃≤ K₄≤K₅≤K₆, bigger bandwidth is for, it is bigger to the binding granularity of CSI-RS.

When it is K to bind granularity, base station to the binding method of CSI-RS is：Base station from the beginning of first RB, by continuous K CSI-RS on individual RB is bound, namely the CSI-RS on this continuous K RB adopts identical precoding.Specifically Say, it is assumed that a total of M RB in bandwidth, then be N+1 groups at most by this M RB point, wherein M=KN+Q, K, N and Q are integer and 0≤Q ＜ K.Then, per group of front N groups contain K RB, and last group is containing Q RB.Base Stand to the RB in same group using identical pre-coding matrix, namely：

Wherein RB_i(1≤i≤M) represents the RB of i-th non-precoding,The RB after i-th precoding is represented, w_iI-th pre-coding matrix in expression pre-coding matrix set.

Scene two, when configured information is that physical layer frequency domain granularity parameter signalling is indicated, base station configures the precoding frequency domain of CSI-RS The step of grain size parameter/measurement limits parameter includes：

Base station configures the state of CSI-RS, including the binding state of CSI-RS and binding granularity K by current bandwidth.With roomy Little and between binding granularity relation is constrained by table 1.

When it is K to bind granularity, base station to the binding method of CSI-RS is：Assume a total of M RB in bandwidth, then at most It is N+1 groups by this M RB point, wherein M=KN+Q, K, N and Q are integer and 0≤Q ＜ K.Then, front N Per group of group contains K RB, and last group is containing Q RB.Base station adopts identical pre-coding matrix to the RB in same group, Namely：

Mode two, when configured information be PMI disabling signalings indicate when, configure CSI-RS precoding frequency domain granularity parameter/ The step of measurement limits parameter includes：

Here judge that PMI disabling signalings indicate whether to enable；In the case of being to be in judged result, allocating pre-coding frequency domain Grain size parameter K is X；In the case where judged result is no, allocating pre-coding frequency domain granularity parameter K is Y；Wherein, X with Y is unequal, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is that current bandwidth maximum wireless is carried to X RB numbers, and X<Y.

Specifically, when configured information is that PMI disabling signalings are indicated, the precoding frequency domain granularity ginseng of base station configuration CSI-RS Number/measurement includes the step of limiting parameter：

Base station is by enabling PMI disabling or not enabling the state of PMI disabling signal deployment CSI-RS, including CSI-RS Binding state and binding granularity K, and arrange binding granularity when base station enables PMI disabling signalings less than or equal to not making Binding granularity during energy PMI disabling signalings.

Mode three, when configured information be feedback model configuration signal indicate when, configure CSI-RS precoding frequency domain granularity parameter/ The step of measurement limits parameter includes：

Here the feedback model during detection feedback model configuration signal is indicated；When feedback model is first kind preset mode set, Allocating pre-coding frequency domain granularity parameter K is X；When feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set When, allocating pre-coding frequency domain granularity parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is more than or waits M is less than or equal in 1, Y, M is that current bandwidth maximum wireless carries RB numbers, and X<Y.

Specifically, when configured information is that feedback model configuration signal is indicated, the precoding frequency domain granularity ginseng of base station configuration CSI-RS Number/measurement includes the step of limiting parameter：

Base station configures the state of CSI-RS, including the binding state of CSI-RS and binding granularity K by feedback model configuration signal. Base station configuration feedback model is x-0, arranges which and indicates binding granularity K=X, when feedback model is the pattern of x-1 or x-2, agreement Which indicates binding granularity K=Y, and X and Y is different integers, 1<=X, Y<=M, M are current bandwidth maximum RB numbers, and And meet X<Y.

Mode four, when configured information for feedback classification Class configured information when, configure CSI-RS precoding frequency domain granularity parameter/ The step of measurement limits parameter includes：

Here feedback classification Class in classification Class configured information is fed back in detection；When feedback classification Class is the second feedback classification When, allocating pre-coding frequency domain granularity parameter K is X；When it is the first feedback classification to feed back classification Class, allocating pre-coding frequency domain Grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is less than or equal to M more than or equal to 1, Y, M is that current bandwidth maximum wireless carries RB numbers, and X<Y.

Specifically, when configured information is to feed back classification Class configured information, base station configures the precoding frequency domain granularity of CSI-RS The step of parameter/measurement limits parameter includes：

Base station indicates the state of configuration CSI-RS, including the binding state of CSI-RS and binding grain by feeding back classification (Class) Degree K.When configuration feedback classification in base station is Class B, arranges which and indicate binding granularity K=X, when feedback classification is Class A, Arrange which and indicate binding granularity K=Y, X and Y is different integers, 1<=X, Y<=M, M are current bandwidth maximum RB numbers, And meet X<Y.

Mode five, when classification Type configured information of the configured information for channel status reference signal CSI-RS, configures CSI-RS Precoding frequency domain granularity parameter/measurement include the step of limit parameter：

Here detect channel status reference signal CSI-RS classification Type configured information in classification Type；When classification Type For first category when, allocating pre-coding frequency domain granularity parameter K be X；When classification Type is second category, allocating pre-coding frequency Domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is less than or equal to more than or equal to 1, Y M, M are that current bandwidth maximum wireless carries RB numbers, and X<Y.

Specifically, when classification Type configured information of the configured information for channel status reference signal CSI-RS, base station configuration The step of precoding frequency domain granularity parameter of CSI-RS/measurement limits parameter includes：

Base station by CSI-RS classifications (Type) configured information configure CSI-RS state, including the binding state of CSI-RS and Binding granularity K：

When for cycle CSI-RS when, arrange its indicate binding granularity K=X；When for CSI-RS aperiodic when, arrange its instruction and tie up Determine granularity K=Y, wherein X, Y is integer and 1<=X, Y<=M.For the CSI-RS in cycle, the binding grain of base station configuration Degree immobilizes.For aperiodic CSI-RS, the binding granularity of base station configuration can be according to the change of channel condition dynamic adjustment Changed with match channels.

As the CSI-RS for non-precoded, arrange which and indicate binding granularity K=X；As the CSI-RS for precoding, agreement Which indicates binding granularity K=Y, and wherein X, Y are integer and 1<=Y<=X<=M.

When for non-polymeric CSI-RS when, arrange its indicate binding granularity K=X；As the CSI-RS for polymerization, arrange which and refer to Show binding granularity K=Y, wherein X, Y are integer and 1<=X<=Y<=M.

As the CSI-RS for fractional bandwidth, arrange which and indicate binding granularity K=X；As the CSI-RS for full bandwidth, agreement Which indicates binding granularity K=Y, and wherein X, Y are integer and 1<=X<=Y<=M.

When it is K to bind granularity, base station to the binding method of CSI-RS is：Base station from the beginning of first RB, by continuous K CSI-RS on individual RB is bound, namely the CSI-RS on this continuous K RB adopts identical precoding.More Body is said, it is assumed that a total of M RB in bandwidth, then be N+1 groups at most by this M RB point, wherein M=KN+Q, K, N and Q are integer and 0≤Q ＜ K.Then, per group of front N groups contain K RB, and last group is containing Q RB.Base Stand to the RB in same group using identical pre-coding matrix, namely：

Mode six, when configured information is feedback system configured information, configures the precoding frequency domain granularity parameter/measurement limit of CSI-RS The step of parameter processed, includes：

Here detect feedback system configured information in feedback system；When feedback system is periodic feedback, allocating pre-coding frequency Domain grain size parameter K is X；When feedback system is that aperiodicity is fed back, allocating pre-coding frequency domain granularity parameter K is Y；Wherein, X is unequal with Y, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is current bandwidth maximum wireless to X Carry RB numbers, and X<Y.

Specifically, when configured information be feedback system configured information when, base station configuration CSI-RS precoding frequency domain granularity parameter/ The step of measurement limits parameter includes：

Base station indicates the state of configuration CSI-RS, including the binding state of CSI-RS and binding granularity K by feedback system.Base When configuration feedback system of standing is periodic feedback, arranges which and indicate binding granularity K=X, when feedback system is that aperiodicity is fed back, Arrange which and indicate binding granularity K=Y, X and Y is different integers, 1<=X, Y<=M, M are current bandwidth maximum RB numbers, And meet X<Y.

Further, precoding frequency domain granularity parameter K is determined according to current bandwidth.

Further, classification Type in the classification Type configured information of channel status reference signal CSI-RS include it is following at least One of：Cycle CSI-RS, CSI-RS aperiodic, precoding CSI-RS, non-precoded CSI-RS, full bandwidth CSI-RS, portion Divide the CSI-RS of bandwidth CSI-RS, the CSI-RS of aggregation configuration and non-polymeric configuration.

Further, precoding frequency domain granularity parameter includes：CSI-RS binding states and/or CSI-RS binding granularities.

Further, method also includes：Base station is by high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter letter Order indicates the binding state of configuration CSI-RS, and binding state includes：Bind or without binding.

Embodiment two

The acquisition methods of another kind of channel parameter are provided in the present embodiment, and Fig. 2 is a kind of channel according to embodiments of the present invention The flow chart of determination method for parameter, as shown in Fig. 2 in end side, the flow process comprises the steps：

Step S202, terminal receive the configured information that base station sends；

Step S204, terminal obtain the precoding frequency domain granularity parameter/survey of channel status reference signal CSI-RS according to configured information Amount limits parameter.

Here, the embodiment that correspondence Fig. 1 is provided, in end side, the embodiment of the present application receives the instruction that base station sends by terminal Information, obtains the precoding frequency domain granularity parameter of channel status reference signal CSI-RS, Jin Eryi according further to the configured information CSI is estimated according to precoding frequency domain granularity parameter, be finally reached and lift the effect for estimating performance.

By above-mentioned steps, the configured information that base station sends is received by terminal；Terminal obtains channel status ginseng according to configured information The precoding frequency domain granularity parameter of signal CSI-RS is examined, and is solved due to the influence of noise brought using conservative approach being estimated to CSI, The problem of the estimation performance for causing to obtain optimal, and then reached and lift the effect for estimating performance.

Further, configured information includes at least one of：High-rise frequency domain granularity parameter configuration signaling, physical layer frequency domain granularity Parameter signalling is indicated, the non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal is indicated, Feedback classification Class configured information, the classification Type configured information of channel status reference signal CSI-RS, feedback system indicate letter Breath and default grain size parameter.

Further, terminal obtains the precoding frequency domain granularity parameter/measurement of channel status reference signal CSI-RS according to configured information The step of limiting parameter includes：

Mode one, when configured information is high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter signalling is indicated, The step of precoding frequency domain granularity parameter/measurement restriction parameter for obtaining CSI-RS, includes：

Here indicate to obtain precoding frequency domain grain according to high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter signalling Degree parameter is K, and precoding frequency domain granularity parameter K is 1, and makes K equal to M, wherein, M is the wireless of current bandwidth maximum Carry RB numbers；

Specifically, scene one, when configured information is high-rise frequency domain granularity parameter configuration signaling, terminal obtains prelisting for CSI-RS Code frequency domain granularity parameter/measurement includes the step of limiting parameter：

Terminal receives high-level signaling, by the configured information of high-level signaling and true by the restriction relation in the table 1 in embodiment one Determine the binding state and binding granularity K of CSI-RS.

It is determined that after binding granularity K, the method that terminal-pair CSI is estimated is：Terminal from the beginning of first RB, by continuous K Individual RB is divided into one group, using all of CSI-RS in each group of RB, using LMMSECSI methods of estimation to CSI Estimated.In particular, it is assumed that a total of M RB in bandwidth, then it is N+1 groups at most to divide this M RB, its Middle M=KN+Q, K, N and Q are integer and 0≤Q ＜ K.Then, per group of front N groups contain K RB, last group Containing Q RB.Terminal is each to same group using LMMSE algorithm for estimating using all CSI-RS of the RB in same group The CSI of individual RB estimated, namely：

WhereinRepresent the estimated result of the CSI to each RB.

Scene two, when configured information is that physical layer frequency domain granularity parameter signalling is indicated, terminal obtains the precoding frequency domain of CSI-RS The step of grain size parameter/measurement limits parameter includes：

Terminal receives physical layer frequency domain granularity parameter configuration signaling, by the configured information of frequency domain granularity parameter configuration signaling and by Restriction relation in table 1 determines the binding state of CSI-RS and binding granularity K.

It is determined that after binding granularity K, the method that terminal-pair CSI is estimated is：Terminal from the beginning of first RB, by continuous K Individual RB is divided into one group, using all of CSI-RS in each group of RB, using LMMSECSI methods of estimation to CSI Estimated.Specifically, it is assumed that a total of M RB in bandwidth, then it is N+1 groups at most to divide this M RB, wherein M=KN+Q, K, N and Q are integer and 0≤Q ＜ K.Then, per group of front N groups contain K RB, and last group contains There is Q RB.Terminal is using all CSI-RS of the RB in same group using LMMSE algorithm for estimating to each of same group The CSI of RB estimated, namely：

WhereinRepresent the estimated result of the CSI to each RB.

Mode two, when configured information be PMI disabling signalings indicate when, obtain CSI-RS precoding frequency domain granularity parameter/ The step of measurement limits parameter includes：

Here judge that PMI disabling signalings indicate whether to enable；In the case of being to be in judged result, precoding frequency domain is obtained Grain size parameter K is X；In the case where judged result is no, it is Y to obtain precoding frequency domain granularity parameter K；

Specifically, when configured information is that PMI disabling signalings are indicated, terminal obtains the precoding frequency domain granularity ginseng of CSI-RS Number/measurement includes the step of limiting parameter：

Terminal receives PMI disabling signalings, determines the binding of CSI-RS by the configured information of PMI disabling signalings State and binding granularity K.

WhereinRepresent the estimated result of the CSI to each RB.

Mode three, when configured information be feedback model configuration signal indicate when, obtain CSI-RS precoding frequency domain granularity parameter/ The step of measurement limits parameter includes：

Here the feedback model during detection feedback model configuration signal is indicated；When feedback model is first kind preset mode set, It is X to obtain precoding frequency domain granularity parameter K；When feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set When, it is Y to obtain precoding frequency domain granularity parameter K；

Specifically, when configured information is that feedback model configuration signal is indicated, terminal obtains the precoding frequency domain granularity ginseng of CSI-RS Number/measurement includes the step of limiting parameter：

Terminal receives feedback model indication signaling, determines the binding shape of CSI-RS by the configured information of feedback model indication signaling State and binding granularity K.

WhereinRepresent the estimated result of the CSI to each RB.

Mode four, when configured information for feedback classification Class configured information when, obtain CSI-RS precoding frequency domain granularity parameter/ The step of measurement limits parameter includes：

Here feedback classification Class in classification Class configured information is fed back in detection；When feedback classification Class is the second feedback classification When, it is X to obtain precoding frequency domain granularity parameter K；When it is the first feedback classification to feed back classification Class, precoding frequency domain is obtained Grain size parameter K is Y；

Specifically, when configured information is to feed back classification Class configured information, terminal obtains the precoding frequency domain granularity of CSI-RS The step of parameter/measurement limits parameter includes：

Terminal receives feedback classification (class) configured information, determines CSI-RS's by feeding back classification (class) configured information Binding state and binding granularity K.

WhereinRepresent the estimated result of the CSI to each RB.

Mode five, when classification Type configured information of the configured information for channel status reference signal CSI-RS, obtains CSI-RS Precoding frequency domain granularity parameter/measurement include the step of limit parameter：

Here detect channel status reference signal CSI-RS classification Type configured information in classification Type；When classification Type For first category when, it is X to obtain precoding frequency domain granularity parameter K；When classification Type is second category, precoding frequency is obtained Domain grain size parameter K is Y；

Specifically, when classification Type configured information of the configured information for channel status reference signal CSI-RS, terminal is obtained The step of precoding frequency domain granularity parameter of CSI-RS/measurement limits parameter includes：

Terminal receives CSI-RS classifications (Type) configured information, determines CSI-RS by CSI-RS classifications (Type) configured information Binding state and binding granularity K：

When for cycle CSI-RS when, terminal determines binding granularity K=X of CSI-RS；When for CSI-RS aperiodic when, terminal Determine binding granularity K=Y of CSI-RS, wherein X, Y are integer and 1<=X, Y<=M.

As the CSI-RS for non-precoded, terminal determines binding granularity K=X of CSI-RS；As the CSI-RS for precoding When, terminal determines binding granularity K=Y of CSI-RS, and wherein X, Y are integer and 1<=Y<=X<=M.

When for non-polymeric CSI-RS when, terminal determines binding granularity K=X of CSI-RS；As the CSI-RS for polymerization, Terminal determines binding granularity K=Y of CSI-RS, and wherein X, Y are integer and 1<=X<=Y<=M.

As the CSI-RS for fractional bandwidth, terminal determines binding granularity K=X of CSI-RS；As the CSI-RS for full bandwidth, Terminal determines binding granularity K=Y of CSI-RS, and wherein X, Y are integer and 1<=X<=Y<=M.

WhereinRepresent the estimated result of the CSI to each RB.

Mode six, when configured information is feedback system configured information, obtains the precoding frequency domain granularity parameter/measurement limit of CSI-RS The step of parameter processed, includes：

Here detect feedback system configured information in feedback system；When feedback system is periodic feedback, precoding frequency is obtained Domain grain size parameter K is X；When feedback system is that aperiodicity is fed back, it is Y to obtain precoding frequency domain granularity parameter K；Wherein, X is unequal with Y, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is current bandwidth maximum wireless to X Carry RB numbers, and X<Y；

Specifically, when configured information be feedback system configured information when, terminal obtain CSI-RS precoding frequency domain granularity parameter/ The step of measurement limits parameter includes：

Terminal receives feedback system configured information, determines the binding state and binding grain of CSI-RS by feedback system configured information Degree K.

WhereinRepresent the estimated result of the CSI to each RB.

Mode seven, when configured information is default grain size parameter, the precoding frequency domain granularity parameter/measurement for obtaining CSI-RS is limited The step of parameter, includes：

Here it is K to obtain precoding frequency domain granularity parameter according to default grain size parameter.

Specifically, when configured information is default grain size parameter, terminal obtains the precoding frequency domain granularity parameter/measurement of CSI-RS The step of limiting parameter includes：

Base station implementation：State of the base station according to frequency domain granularity parameter configuration CSI-RS of agreement, including the binding of CSI-RS State and binding granularity K.

Terminal implementation：State of the terminal according to frequency domain granularity parameter configuration CSI-RS of agreement, including the binding of CSI-RS State and binding granularity K, and in communication process, terminal carries out the estimation of CSI all the time according to the agreement.

WhereinRepresent the estimated result of the CSI to each RB.

Further, method also includes：Terminal is by high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter letter Order indicates the binding state for obtaining CSI-RS, and binding state includes：Bind or without binding.

Embodiment three

In the present embodiment there is provided the collocation method of another channel parameter, Fig. 3 is another kind of letter according to embodiments of the present invention The flow chart of the collocation method of road parameter, as shown in figure 3, in base station side, the flow process comprises the steps：

Step S302, base station configuration configured information；

Step S304, precoding time domain grain size parameter/survey of the base station according to configured information configurating channel state reference signal CSI-RS Amount limits parameter.

The corresponding embodiments of Fig. 1 are different from, the acquisition methods of the channel parameter that the embodiment of the present application is provided are base station foundation configuration Configured information, configures the precoding time domain grain size parameter of CSI-RS.

By above-mentioned steps, in base station side, configured information is configured by base station；Base station is according to configured information configurating channel state ginseng The precoding time domain grain size parameter of signal CSI-RS is examined, and is solved due to the influence of noise brought using conservative approach being estimated to CSI, The problem of the estimation performance for causing to obtain optimal, and then reached and lift the effect for estimating performance.

Further, configured information includes at least one of：The non-enable PMI disabling signalings of precoding matrix indicators refer to Show, feedback model configuration signal is indicated, feedback classification Class configured information, channel status reference signal configuration CSI-RS The Report Type of configuration configured informations, feedback system configured information, antenna port number configured information and CSI.

Further, precoding time domain grain size parameter/measurement of the base station according to configured information configurating channel state reference signal CSI-RS The step of limiting parameter includes：

Mode one, when configured information be PMI disabling signalings indicate when, configure CSI-RS precoding time domain grain size parameter/ The step of measurement limits parameter includes：

Here judge that PMI disabling signalings indicate whether to enable；In the case of being to be in judged result, allocating pre-coding time domain Grain size parameter K is X；In the case where judged result is no, allocating pre-coding time domain grain size parameter K is Y；Wherein, X with Y is unequal, and X and Y are integer, and X<Y；

Specifically, when configured information is that PMI disabling signalings are indicated, the precoding time domain granularity ginseng of base station configuration CSI-RS Several steps include：

When it is K to bind granularity, base station to the binding method of CSI-RS is：Base station from the beginning of present sub-frame, to continuous K CSI-RS in individual subframe is bound, i.e., include in the pilot frequency configuration of the same set of CSI-RS in this continuous K subframe CSI-RS has identical precoding or does not carry out precoding.Fig. 3-a describe to bind configuration status when granularity is K=2.

Mode two, when configured information is that feedback model configuration signal is indicated, configurating channel state reference signal CSI-RS's prelists Code time domain grain size parameter/measurement includes the step of limiting parameter：

Here the feedback model during detection feedback model configuration signal is indicated；When feedback model is first kind preset mode set, Allocating pre-coding time domain grain size parameter K is X；When feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set When, allocating pre-coding time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；

Specifically, when configured information is that feedback model configuration signal is indicated, base station configurating channel state reference signal CSI-RS's The step of precoding time domain grain size parameter, includes：

Base station configures the state of CSI-RS, including the binding state of CSI-RS and binding granularity K by feedback model configuration signal. Base station configuration feedback model is x-0, arranges which and indicates binding granularity K=X, when feedback model is the pattern of x-1 or x-2, agreement Which indicates binding granularity K=Y, and X and Y is different integers, and meets X<Y.

Mode three, when configured information is to feed back classification Class configured information, configurating channel state reference signal CSI-RS's is pre- The step of coded time domain grain size parameter/measurement limits parameter includes：

Here feedback classification Class in classification Class configured information is fed back in detection；When feedback classification Class is the second feedback classification When, allocating pre-coding time domain grain size parameter K is X；When it is the first feedback classification to feed back classification Class, allocating pre-coding time domain Grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is less than or equal to M more than or equal to 1, Y, M is that current bandwidth maximum wireless carries RB numbers, and X<Y；

Specifically, when configured information is to feed back classification Class configured information, base station configurating channel state reference signal CSI-RS Precoding time domain grain size parameter the step of include：

Base station indicates the state of configuration CSI-RS, including the binding state of CSI-RS and binding grain by feeding back classification (Class) Degree K.When configuration feedback classification in base station is Class B, arranges which and indicate binding granularity K=X, when feedback classification is Class A, Arrange which and indicate binding granularity K=Y, X and Y is different integers, and meets X<Y.

Mode four, when configured information is channel status reference signal configuration CSI-RS configuration configured informations, with confidence The step of precoding time domain grain size parameter of road state reference signal CSI-RS/measurement limits parameter includes：

Here base station configures a set of CSI-RS configuration, and CSI-RS configuration include multiple resource collections, one Wave beam one resource collection of correspondence, the different corresponding wave beams of resource collection are different, and multiple ports, port tool are included in resource collection There is identical precoding；After base station determines CSI-RS configuration, indicate that configuration is pre- by high-level signaling/physical layer signaling Encoded frequency domain grain size parameter is K；

Specifically, when configured information is channel status reference signal configuration CSI-RS configuration configured informations, base station is matched somebody with somebody The step of precoding time domain grain size parameter of confidence road state reference signal CSI-RS, includes：

Base station determines the port included in CSI-RS configuration, including CSI resource collection numbers, each CSI resource collection The pre-coding matrix adopted by number and these ports.Base station indicates binding granularity K value by high level/physical layer signaling.

Mode five, when configured information is feedback system configured information, during the precoding of configurating channel state reference signal CSI-RS The step of domain grain size parameter/measurement limits parameter includes：

Here detect feedback system configured information in feedback system；When feedback system is periodic feedback, during allocating pre-coding Domain grain size parameter K is X；When feedback system is that aperiodicity is fed back, allocating pre-coding time domain grain size parameter K is Y；Wherein, X is unequal with Y, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is current bandwidth maximum wireless to X Carry RB numbers, and X<Y；

Specifically, when configured information is feedback system configured information, base station configurating channel state reference signal CSI-RS's prelists The step of code time domain grain size parameter, includes：

Base station indicates the state of configuration CSI-RS, including the binding state of CSI-RS and binding granularity K by feedback system.Base When configuration feedback system of standing is periodic feedback, arranges which and indicate binding granularity K=X, when feedback system is that aperiodicity is fed back, Arrange which and indicate binding granularity K=Y, X and Y is different integers, and meets X<Y.

Mode six, when configured information is antenna port number configured information, the precoding of configurating channel state reference signal CSI-RS The step of time domain grain size parameter/measurement limits parameter includes：

Here, when the antenna port number that base station is used for transmission is M1, allocating pre-coding time domain grain size parameter K is X；Work as base station When antenna port number for transmitting is M2, allocating pre-coding time domain grain size parameter K is Y；Wherein, X and Y is unequal, X and Y is integer, and when M1 is less than or equal to M2, X is more than or equal to Y.

Specifically, when configured information is antenna port number configured information, base station configurating channel state reference signal CSI-RS's is pre- The step of coded time domain grain size parameter, includes：

Base station indicates the state of configuration CSI-RS, including the binding state of CSI-RS and binding granularity K by antenna port number. When base station is M1 for the antenna port number of transmission, arranges which and indicate binding granularity K=X, the antenna port number for transmitting is During M2, arrange which and indicate binding granularity K=Y, X and Y is different integers.Further, work as M1<During=M2, X>=Y.

Mode seven, when Report Type of the configured information for CSI, the precoding time domain of configurating channel state reference signal CSI-RS The step of grain size parameter/measurement limits parameter includes：

Can periodically reset with the periodic feedback of CSI report type according to time domain grain size parameter, base station is reported by CSI The most long period of type is accused configuring the reset cycle and/or sub-frame offset of binding state.

Specifically, base station implementation：Base station determines the Report Type of CSI, including report cycle and/or the subframe of CQI/RI/PMI Bias, then base station resets the binding state and/or sub-frame offset of CSI-RS according to most long period.As shown in Fig. 5-a, CQI/PMI/RI Feedback cycle it is different, but the feedback cycle of RI is maximum, then the binding state of CSI-RS is reset with the feedback cycle of RI.

Further, precoding time domain grain size parameter includes：CSI-RS binding states and/or CSI-RS binding granularities.

Additionally, in base station side, the state of CSI-RS can also be configured by associated form one and mode three, i.e. by PMI disabling Signaling combines the state that the state table for determining configures CSI-RS with feedback classification, specific as follows shown：

Combined the state that the state table for determining configures CSI-RS according to such as table 2 below by PMI disabling signalings with feedback classification in base station：

2 PMI disabling signalings of table and feedback kind united state table, as shown in table 2.

Table 2

	Feedback classification A (Class A)	Feedback classification B (Class B)
			Enable PMI disabling	K_0,A	K_0,B
PMI disabling are not enabled	K_1,A	K_1,B

Four parameter meet the constraint conditions in table 2：K_0,A,K_0,B,K_1,A,K_1,BIt is integer and 1≤K_0,A≤K_0,B≤ K_1,A≤K_1,B≤ M, wherein M are the number of the RB in bandwidth.

Example IV

In the present embodiment there is provided the acquisition methods of another channel parameter, Fig. 4 is another kind of letter according to embodiments of the present invention The flow chart of the acquisition methods of road parameter, as shown in figure 4, in end side, the flow process comprises the steps：

Step S402, terminal receive the configured information that base station sends；

Step S404, terminal obtain the precoding time domain grain size parameter/survey of channel status reference signal CSI-RS according to configured information Amount limits parameter.

The precoding frequency domain granularity parameter that Fig. 2 terminals obtain CSI-RS is different from, the channel parameter that the embodiment of the present application is provided is obtained Take method and configured information is received by terminal, and then when obtaining the precoding of channel status reference signal CSI-RS according to configured information Domain grain size parameter.

By above-mentioned steps, in end side, the configured information that base station sends is received by terminal；Terminal is obtained according to configured information The precoding time domain grain size parameter of channel status reference signal CSI-RS, is solved due to estimating to be brought using conservative approach to CSI Influence of noise, the problem of the estimation performance for causing to obtain optimal, and then reached and lift the effect for estimating performance.

Further, configured information includes at least one of：The non-enable PMI disabling signalings of precoding matrix indicators refer to Show, feedback model configuration signal is indicated, feedback classification Class configured information, resource Resource specific configured informations, anti- The Report Type of feedback mode configured information, antenna port number configured information and CSI.

Further, terminal obtains the precoding time domain grain size parameter/measurement of channel status reference signal CSI-RS according to configured information The step of limiting parameter includes：

Mode one, when configured information be PMI disabling signalings indicate when, obtain CSI-RS precoding time domain grain size parameter/ The step of measurement limits parameter includes：

Here judge that PMI disabling signalings indicate whether to enable；In the case of being to be in judged result, precoding time domain is obtained Grain size parameter K is X；In the case where judged result is no, it is Y to obtain precoding time domain grain size parameter K；Wherein, X with Y is unequal, and X and Y are integer, and X<Y；

Specifically, when configured information is that PMI disabling signalings are indicated, terminal obtains the precoding time domain granularity ginseng of CSI-RS Number/measurement includes the step of limiting parameter：

It is determined that after binding granularity K, the method that terminal-pair CSI is estimated is：Terminal determines that current CSI quantifies corresponding CSI-RS Position, the CSI quantify corresponding reference resources be normally at the last transmission need carry out quantifying feedback for which CSI-RS places subframe, the CSI-RS sent in the transmission subframe of terminal-pair CSI-RS place subframe and before K CSI-RS Carry out united CSI estimations.Fig. 4-a determine CSI-RS configuration statuses for the CSI Combined estimator schematic diagrams after K=2 for terminal.

Mode two, when configured information is that feedback model configuration signal is indicated, obtains prelisting for channel status reference signal CSI-RS Code time domain grain size parameter/measurement includes the step of limiting parameter：

Here detect that feedback model obtains the feedback model during signaling is indicated；When feedback model is first kind preset mode set, It is X to obtain precoding time domain grain size parameter K；When feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set When, it is Y to obtain precoding time domain grain size parameter K；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；

Specifically, when configured information is that feedback model configuration signal is indicated, terminal obtains channel status reference signal CSI-RS The step of precoding time domain grain size parameter, includes：

Terminal receives feedback model configured information, determines the binding state and binding grain of CSI-RS by feedback model configured information Degree K.

Mode three, when configured information is to feed back classification Class configured information, obtains the pre- of channel status reference signal CSI-RS The step of coded time domain grain size parameter/measurement limits parameter includes：

Here feedback classification Class in classification Class configured information is fed back in detection；When feedback classification Class is the second feedback classification When, it is X to obtain precoding time domain grain size parameter K；When it is the first feedback classification to feed back classification Class, precoding time domain is obtained Grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；

Specifically, when configured information is to feed back classification Class configured information, terminal obtains channel status reference signal CSI-RS Precoding time domain grain size parameter the step of include：

Terminal receives feedback classification (class) configured information, determines CSI-RS by the configured information for feeding back classification (class) Binding state and binding granularity K.

Mode four, when configured information is resource Resource specific configured informations, obtains channel status reference signal CSI-RS Precoding time domain grain size parameter/measurement include the step of limit parameter：

Here terminal is determined in a set of CSI-RS configuration of base station configuration according to resource Resource specific configured informations Comprising resource collection number；Terminal obtains channel status reference signal CSI-RS according to the high level for receiving/physical layer indication signaling Precoding time domain grain size parameter be K；

Specifically, when configured information is resource Resource specific configured informations, obtain channel status reference signal CSI-RS Precoding time domain grain size parameter the step of include：

The resource collection number that terminal is included during a set of CSI-RS configuration that base station configures are determined from the data for receiving.Eventually Termination receives high level/physical layer indication signaling and obtains CSI-RS binding granularity K values, then in resource collection of the terminal using binding Resource carry out joint CSI estimation.

Mode five, when configured information is feedback system configured information, when obtaining the precoding of channel status reference signal CSI-RS The step of domain grain size parameter/measurement limits parameter includes：

Here detect feedback system configured information in feedback system；When feedback system is periodic feedback, when obtaining precoding Domain grain size parameter K is X；When feedback system is that aperiodicity is fed back, it is Y to obtain precoding time domain grain size parameter K；Wherein, X<Y；

Specifically, when configured information is feedback system configured information, terminal obtains prelisting for channel status reference signal CSI-RS The step of code time domain grain size parameter, includes：

Mode six, when configured information is antenna port number configured information, obtains the precoding of channel status reference signal CSI-RS The step of time domain grain size parameter/measurement limits parameter includes：

Here when terminal determine base station for transmission antenna port number be M1 when, it is X to obtain precoding time domain grain size parameter K； When terminal determine base station for transmission antenna port number be M2 when, it is Y to obtain precoding time domain grain size parameter K；Wherein, X Unequal with Y, X and Y is integer, and when M1 is less than or equal to M2, X is more than or equal to Y.

Specifically, when configured information is antenna port number configured information, terminal obtains the pre- of channel status reference signal CSI-RS The step of coded time domain grain size parameter, includes：

Terminal determines the antenna port number for transmission from the data for receiving, and is determined by antenna port number configured information The binding state and binding granularity K of CSI-RS.

Mode seven, when Report Type of the configured information for CSI, obtains the precoding time domain of channel status reference signal CSI-RS The step of grain size parameter/measurement limits parameter includes：

Terminal determines the periodic reset and/or binding state of the binding state of CSI-RS by the most long period of CSI report type Sub-frame offset.

Specifically, terminal implementation：Terminal obtains the Report Type of CSI, including the feedback cycle of CQI/RI/PMI.Pass through The feedback cycle of CQI/RI/PMI determines most long feedback cycle, according to most long feedback cycle obtain CSI-RS binding state and/ Or sub-frame offset.After terminal obtains the binding state of CSI-RS, the Combined estimator of CSI is carried out according to the binding state of CSI-RS.

Through the above description of the embodiments, those skilled in the art can be understood that the side according to above-described embodiment Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases before Person is more preferably embodiment.Based on such understanding, technical scheme substantially makes tribute to prior art in other words The part offered can be embodied in the form of software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, CD) in, use so that a station terminal equipment including some instructions (can be mobile phone, computer, Server, or the network equipment etc.) method that performs each embodiment of the invention.

A kind of acquisition device of channel parameter is additionally provided in the present embodiment, and the device is used to realize above-described embodiment and preferred reality Mode is applied, repeating no more for explanation had been carried out.As used below, term " module " can realize predetermined function The combination of software and/or hardware.Although the device described by following examples is preferably with software realizing, hardware, or The realization of the combination of software and hardware is also what is may and be contemplated.

Additionally, in end side, it is also possible to configure the state of CSI-RS by associated form one and mode three, i.e. terminal is received Disabling signalings and feedback classification configured information, by being joined by disabling signalings and feedback classification in the table 2 in embodiment three Close the state table that determines to determine the state of CSI-RS, including the binding state of CSI-RS and binding granularity K.Institute specific as follows Show：

WhereinRepresent the estimated result of the CSI to each RB.

Embodiment five

Fig. 5 is the structured flowchart of the configuration device of channel parameter according to embodiments of the present invention, as shown in figure 5, in base station side, The device includes：First configuration module 51 and the second configuration module 52, wherein,

First configuration module 51, for configuring configured information；

Second configuration module 52, joins for the precoding frequency domain granularity according to configured information configurating channel state reference signal CSI-RS Number/measurement limits parameter.

Here step S102 and step S104 during the first configuration module 51 and the correspondence Fig. 1 of the second configuration module 52 are implemented.

The acquisition device of the channel parameter that the embodiment of the present application is provided, in base station side, configures configured information by base station；Base station according to According to the precoding frequency domain granularity parameter of configured information configurating channel state reference signal CSI-RS, solve due to estimating to adopt to CSI The influence of noise brought with conservative approach, the problem of the estimation performance for causing to obtain optimal, and then reached lifting and estimate property The effect of energy.

Further, Fig. 6 is a kind of structured flowchart of the configuration device of channel parameter according to embodiments of the present invention, such as Fig. 6 institutes Show, include at least one of in configured information：High-rise frequency domain granularity parameter configuration signaling, physical layer frequency domain granularity parameter signalling Indicate, the non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal is indicated, feedback classification The situation of Class configured informations, the classification Type configured information of channel status reference signal CSI-RS and feedback system configured information Under, the second configuration module 52, including：First dispensing unit 521, the second dispensing unit 522, the 3rd dispensing unit 523, Four dispensing units 524, the 5th dispensing unit 525 and the 6th dispensing unit 526, wherein,

First dispensing unit 521, for working as configured information for high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter When signaling is indicated, the precoding frequency domain granularity parameter/measurement for configuring CSI-RS limits parameter, wherein, according to high-rise frequency domain granularity ginseng Number configuration signal or physical layer frequency domain granularity parameter signalling indicate allocating pre-coding frequency domain granularity parameter for K, precoding frequency domain granularity Parameter K is 1, and makes K equal to M, wherein, M is the maximum radio bearer RB numbers of current bandwidth；Or,

Second dispensing unit 522, for when configured information is that PMI disabling signalings are indicated, configuring the precoding of CSI-RS Frequency domain granularity parameter/measurement limits parameter, wherein, judge that PMI disabling signalings indicate whether to enable；It is yes in judged result In the case of, allocating pre-coding frequency domain granularity parameter K is X；In the case where judged result is no, allocating pre-coding frequency domain grain Degree parameter K is Y；Or,

3rd dispensing unit 523, for when configured information is that feedback model configuration signal is indicated, configuring the precoding of CSI-RS Frequency domain granularity parameter/measurement limits parameter；Wherein, the feedback model during detection feedback model configuration signal is indicated；Work as feedback model For, during first kind preset mode set, allocating pre-coding frequency domain granularity parameter K is X；When feedback model is Equations of The Second Kind preset mode When set or the 3rd class preset mode set, allocating pre-coding frequency domain granularity parameter K is Y；Or,

4th dispensing unit 524, for when configured information is to feed back classification Class configured information, configuring prelisting for CSI-RS Code frequency domain granularity parameter/measurement limits parameter, wherein, feedback classification Class in detection feedback classification Class configured information；When When feedback classification Class is the second feedback classification, allocating pre-coding frequency domain granularity parameter K is X；When feedback classification Class is the During one feedback classification, allocating pre-coding frequency domain granularity parameter K is Y；Or,

5th dispensing unit 525, for when configured information for channel status reference signal CSI-RS classification Type configured information when, The precoding frequency domain granularity parameter/measurement of configuration CSI-RS limits parameter, wherein, detect channel status reference signal CSI-RS Classification Type in classification Type configured information；When classification Type is first category, allocating pre-coding frequency domain granularity parameter K For X；When classification Type is second category, allocating pre-coding frequency domain granularity parameter K is Y；Or,

6th dispensing unit 526, for when configured information is feedback system configured information, configuring the precoding frequency domain of CSI-RS Grain size parameter/measurement limits parameter, wherein, detect the feedback system in feedback system configured information；For working as feedback system for week When phase property is fed back, allocating pre-coding frequency domain granularity parameter K is X；When feedback system is that aperiodicity is fed back, allocating pre-coding Frequency domain granularity parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is less than or is waited more than or equal to 1, Y In M, M is that current bandwidth maximum wireless carries RB numbers, and X<Y.

Embodiment six

Fig. 7 is the structured flowchart of the acquisition device of channel parameter according to another embodiment of the present invention, as shown in fig. 7, in terminal Side, the device include：Receiver module 72 and acquisition module 74, wherein,

Receiver module 72, for receiving the configured information of base station transmission；

Acquisition module 74, the precoding frequency domain granularity parameter for foundation configured information acquisition channel status reference signal CSI-RS/ Measurement limits parameter.

Here step S202 in receiver module 72 and the correspondence Fig. 2 of acquisition module 74 in the embodiment of the present application and step S204.

The acquisition device of the channel parameter that the embodiment of the present application is provided, in end side, receives the instruction letter that base station sends by terminal Breath；Terminal obtains the precoding frequency domain granularity parameter of channel status reference signal CSI-RS according to configured information, solves due to right CSI estimates the influence of noise that brings using conservative approach, the problem of the estimation performance for causing to obtain optimal, and then has reached and carry Rise the effect for estimating performance.

Further, Fig. 8 is a kind of structured flowchart of the acquisition device of channel parameter according to another embodiment of the present invention, such as Fig. 8 It is shown, include at least one of in configured information：High-rise frequency domain granularity parameter configuration signaling, physical layer frequency domain granularity parameter letter Order is indicated, the non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal is indicated, feedback sort Other Class configured informations, the classification Type configured information of channel status reference signal CSI-RS, feedback system configured information and pre- If grain size parameter in the case of, acquisition module 74 includes：First acquisition unit 741, second acquisition unit the 742, the 3rd are obtained Unit 743, the 4th acquiring unit 744, the 5th acquiring unit 745, the 6th acquiring unit 746 and the 7th acquiring unit 747 are taken, Wherein,

First acquisition unit 741, for working as configured information for high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter When signaling is indicated, the precoding frequency domain granularity parameter/measurement for obtaining CSI-RS limits parameter, wherein, according to high-rise frequency domain granularity ginseng Number configuration signal or physical layer frequency domain granularity parameter signalling indicate to obtain precoding frequency domain granularity parameter for K, precoding frequency domain granularity Parameter K is 1, and makes K equal to M, wherein, M is the maximum radio bearer RB numbers of current bandwidth；Or,

Second acquisition unit 742, for when configured information is that PMI disabling signalings are indicated, obtaining the precoding of CSI-RS Frequency domain granularity parameter/measurement limits parameter, wherein, judge that PMI disabling signalings indicate whether to enable；It is yes in judged result In the case of, it is X to obtain precoding frequency domain granularity parameter K；In the case where judged result is no, precoding frequency domain grain is obtained Degree parameter K is Y；Or,

3rd acquiring unit 743, for when configured information is that feedback model configuration signal is indicated, obtaining the precoding of CSI-RS Frequency domain granularity parameter/measurement limits parameter, wherein, detect the feedback model in the instruction of feedback model configuration signal；Work as feedback model It is X during first kind preset mode set, to obtain precoding frequency domain granularity parameter K；When feedback model is Equations of The Second Kind preset mode When set or the 3rd class preset mode set, it is Y to obtain precoding frequency domain granularity parameter K；Or,

4th acquiring unit 744, for when configured information is to feed back classification Class configured information, obtaining prelisting for CSI-RS Code frequency domain granularity parameter/measurement limits parameter, wherein, feedback classification Class in detection feedback classification Class configured information；When When feedback classification Class is the second feedback classification, it is X to obtain precoding frequency domain granularity parameter K；When feedback classification Class is the During one feedback classification, it is Y to obtain precoding frequency domain granularity parameter K；Or,

5th acquiring unit 745, for when configured information for channel status reference signal CSI-RS classification Type configured information when, The precoding frequency domain granularity parameter/measurement for obtaining CSI-RS limits parameter, wherein, detect channel status reference signal CSI-RS Classification Type in classification Type configured information；When classification Type is first category, precoding frequency domain granularity parameter K is obtained For X；When classification Type is second category, it is Y to obtain precoding frequency domain granularity parameter K；Or,

6th acquiring unit 746, for when configured information is feedback system configured information, obtaining the precoding frequency domain of CSI-RS Grain size parameter/measurement limits parameter, wherein, detect the feedback system in feedback system configured information；When feedback system is for periodically During feedback, it is X to obtain precoding frequency domain granularity parameter K；When feedback system is that aperiodicity is fed back, precoding frequency domain is obtained Grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is less than or equal to M more than or equal to 1, Y, M is that current bandwidth maximum wireless carries RB numbers, and X<Y；Or,

7th acquiring unit 747, for when configured information is default grain size parameter, obtaining the precoding frequency domain grain of CSI-RS Degree parameter/measurement limits parameter, wherein, it is K to obtain precoding frequency domain granularity parameter according to default grain size parameter.

Embodiment seven

The configuration device of the channel parameter that further embodiment of this invention is provided, in base station side, the device includes：First configuration module With the second configuration module, wherein,

First configuration module, for configuring configured information；

Second configuration module, for the precoding time domain grain size parameter according to configured information configurating channel state reference signal CSI-RS / measurement limits parameter.

The acquisition device of the channel parameter that the embodiment of the present application is provided, in base station side, configures configured information by base station；Base station according to According to the precoding time domain grain size parameter of configured information configurating channel state reference signal CSI-RS, solve due to estimating to adopt to CSI The influence of noise brought with conservative approach, the problem of the estimation performance for causing to obtain optimal, and then reached lifting and estimate property The effect of energy.

Further, include at least one of in configured information：The non-enable PMI disabling signalings of precoding matrix indicators Indicate, feedback model configuration signal is indicated, feedback classification Class configured information, channel status reference signal configuration CSI-RS In the case of the Report Type of configuration configured informations, feedback system configured information, antenna port number configured information and CSI, Configuration module 94 includes：First dispensing unit, the second dispensing unit, the 3rd dispensing unit, the 4th dispensing unit, the 5th configuration Unit and the 6th dispensing unit, wherein,

First dispensing unit, for when configured information is that PMI disabling signalings are indicated, configuring the precoding time domain of CSI-RS Grain size parameter/measurement limits parameter, wherein, judge that PMI disabling signalings indicate whether to enable；In the feelings that judged result is yes Under condition, allocating pre-coding time domain grain size parameter K is X；In the case where judged result is no, allocating pre-coding time domain granularity ginseng Number K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；Or,

Second dispensing unit, for when configured information be feedback model configuration signal indicate when, configurating channel state reference signal The precoding time domain grain size parameter of CSI-RS/measurement limits parameter, wherein, detect the feedback mould in the instruction of feedback model configuration signal Formula；When feedback model is first kind preset mode set, allocating pre-coding time domain grain size parameter K is X；When feedback model is When the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, allocating pre-coding time domain grain size parameter K is Y；Wherein, X Unequal with Y, X and Y are integer, and X<Y；Or,

3rd dispensing unit, for when configured information for feedback classification Class configured information when, configurating channel state reference signal The precoding time domain grain size parameter of CSI-RS/measurement limits parameter, wherein, the feedback in detection feedback classification Class configured information Classification Class；When it is the second feedback classification to feed back classification Class, allocating pre-coding time domain grain size parameter K is X；Work as feedback When classification Class is the first feedback classification, allocating pre-coding time domain grain size parameter K is Y；Wherein, X and Y is unequal, X It is integer with Y, more than or equal to 1, Y less than or equal to M, M is that current bandwidth maximum wireless carries RB numbers, and X to X<Y； Or,

4th dispensing unit, is channel status reference signal configuration CSI-RS configuration configured informations for working as configured information When, the precoding time domain grain size parameter/measurement of configurating channel state reference signal CSI-RS limits parameter, wherein, configure a set of CSI-RS configuration, CSI-RS configuration includes multiple resource collections, and a wave beam corresponds to a resource collection, The different corresponding wave beams of resource collection are different, and multiple ports are included in resource collection, and port has identical precoding；In base station After determining CSI-RS configuration, indicate that allocating pre-coding frequency domain granularity parameter is K by high-level signaling/physical layer signaling； Or,

5th dispensing unit, for when configured information be feedback system configured information when, configurating channel state reference signal CSI-RS Precoding time domain grain size parameter/measurement limit parameter, wherein, detect the feedback system in feedback system configured information；Work as feedback When mode is periodic feedback, allocating pre-coding time domain grain size parameter K is X；When feedback system is that aperiodicity is fed back, match somebody with somebody Precoding time domain grain size parameter K is put for Y；Wherein, X and Y is unequal, and X and Y is integer, and X is more than or equal to 1, Y Less than or equal to M, M is that current bandwidth maximum wireless carries RB numbers, and X<Y；Or,

6th dispensing unit, for when configured information be antenna port number configured information when, configurating channel state reference signal CSI-RS Precoding time domain grain size parameter/measurement limit parameter, wherein, when the antenna port number that base station is used for transmission is M1, configuration Precoding time domain grain size parameter K is X；When the antenna port number that base station is used for transmission is M2, allocating pre-coding time domain granularity Parameter K is Y；Wherein, X and Y is unequal, and X and Y is integer, and when M1 is less than or equal to M2, X is more than or waits In Y；

7th dispensing unit, for when configured information for CSI Report Type when, configurating channel state reference signal CSI-RS's Precoding time domain grain size parameter/measurement limits parameter, wherein, can be with the periodicity of CSI report type according to time domain grain size parameter Feed back and periodically reset, the reset cycle and/or subframe that binding state is configured by the most long period of CSI report type is inclined Put.

Embodiment eight

The acquisition device of the channel parameter that yet another embodiment of the invention is provided, in end side, the device includes：Receiver module and obtain Delivery block, wherein,

Receiver module, for receiving the configured information of base station transmission；

Acquisition module, for the precoding time domain grain size parameter/measurement of channel status reference signal CSI-RS is obtained according to configured information Limit parameter.

The acquisition device of the channel parameter that the embodiment of the present application is provided, in end side, receives the instruction letter that base station sends by terminal Breath；Terminal obtains the precoding time domain grain size parameter of channel status reference signal CSI-RS according to configured information, solves due to right CSI estimates the influence of noise that brings using conservative approach, the problem of the estimation performance for causing to obtain optimal, and then has reached and carry Rise the effect for estimating performance.

Further, include at least one of in configured information：The non-enable PMI disabling signalings of precoding matrix indicators Indicate, feedback model configuration signal indicate, feedback classification Class configured information, resource Resource specific configured informations, In the case of the Report Type of feedback system configured information, antenna port number configured information and CSI, acquisition module includes：

First acquisition unit, for when configured information is that PMI disabling signalings are indicated, obtaining the precoding time domain of CSI-RS Grain size parameter/measurement limits parameter, wherein, judge that PMI disabling signalings indicate whether to enable；In the feelings that judged result is yes Under condition, it is X to obtain precoding time domain grain size parameter K；In the case where judged result is no, precoding time domain granularity ginseng is obtained Number K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；Or,

Second acquisition unit, for when configured information is that feedback model configuration signal is indicated, obtaining channel status reference signal The precoding time domain grain size parameter of CSI-RS/measurement limits parameter, wherein, detect that feedback model obtains the feedback mould during signaling is indicated Formula；When feedback model is first kind preset mode set, it is X to obtain precoding time domain grain size parameter K；When feedback model is When the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, it is Y to obtain precoding time domain grain size parameter K；Wherein, X Unequal with Y, X and Y are integer, and X<Y；Or,

3rd acquiring unit, for when configured information is to feed back classification Class configured information, obtaining channel status reference signal The precoding time domain grain size parameter of CSI-RS/measurement limits parameter, wherein, the feedback in detection feedback classification Class configured information Classification Class；When it is the second feedback classification to feed back classification Class, it is X to obtain precoding time domain grain size parameter K；Work as feedback When classification Class is the first feedback classification, it is Y to obtain precoding time domain grain size parameter K；Wherein, X and Y is unequal, X It is integer with Y, and X<Y；Or,

4th acquiring unit, for when configured information is resource Resource specific configured informations, obtaining channel status reference The precoding time domain grain size parameter of signal CSI-RS/measurement limits parameter, wherein, terminal refers to according to resource Resource specific Show the resource collection number that information is included in determining a set of CSI-RS configuration that base station configures；Terminal is according to the height for receiving It is K that layer/physical layer indication signaling obtains the precoding time domain grain size parameter of channel status reference signal CSI-RS；Or,

5th acquiring unit, for when configured information is feedback system configured information, obtaining channel status reference signal CSI-RS Precoding time domain grain size parameter/measurement limit parameter, wherein, detect the feedback system in feedback system configured information；Work as feedback When mode is periodic feedback, it is X to obtain precoding time domain grain size parameter K；When feedback system is that aperiodicity is fed back, obtain Precoding time domain grain size parameter K is taken for Y；Wherein, X<Y；Or,

6th acquiring unit, for when configured information is antenna port number configured information, obtaining channel status reference signal CSI-RS Precoding time domain grain size parameter/measurement limit parameter, wherein, when terminal determine base station for transmission antenna port number be M1 When, it is X to obtain precoding time domain grain size parameter K；When terminal determine base station for transmission antenna port number for M2 when, obtain Precoding time domain grain size parameter K is taken for Y；Wherein, X and Y is unequal, and X and Y is integer, when M1 is less than or equal to During M2, X is more than or equal to Y；

7th acquiring unit, for when Report Type of the configured information for CSI, obtaining channel status reference signal CSI-RS Precoding time domain grain size parameter/measurement limits parameter, wherein, the binding of CSI-RS is determined by the most long period of CSI report type The sub-frame offset of the periodic reset and/or binding state of state.

Embodiment nine

Configuration there is provided a kind of channel parameter in the present embodiment obtains system, and Fig. 9 is channel ginseng according to embodiments of the present invention The structure chart of several acquisition systems, as shown in figure 9, the system includes：Base station 92 and terminal 94, base station 92 are led to terminal 94 Letter connection, wherein,

Base station 92 is the configuration device of arbitrary described channel parameter in embodiment five or embodiment seven；

Terminal 94 is the acquisition device of arbitrary described channel parameter in embodiment six or embodiment eight.

It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, can by with Under type is realized, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module is located at multiple places respectively In reason device.

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can be by It is set to store the program code for being used to performing following steps：

S1, base station receive configured information；

S2, base station limit ginseng according to the precoding frequency domain granularity parameter/measurement of configured information configurating channel state reference signal CSI-RS Number.

Alternatively, in the present embodiment, above-mentioned storage medium can be including but not limited to：USB flash disk, read only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), portable hard drive, magnetic disc or Person's CD etc. is various can be with the medium of store program codes.

Alternatively, in the present embodiment, processor performs base station according to instruction letter according to the program code for having been stored in storage medium The step of precoding frequency domain granularity parameter/measurement of breath configurating channel state reference signal CSI-RS limits parameter includes：Mode one, When configured information is high-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter signalling is indicated, configure CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：According to high-rise frequency domain granularity parameter configuration signaling or physical layer frequency Domain grain size parameter signaling indicates that allocating pre-coding frequency domain granularity parameter is K, and precoding frequency domain granularity parameter K is 1, and makes K etc. In M, wherein, M is the maximum radio bearer RB numbers of current bandwidth；Mode two, when configured information is believed for PMI disabling When order is indicated, include the step of the precoding frequency domain granularity parameter/measurement restriction parameter for configuring CSI-RS：Judge PMI disabling Signaling indicates whether to enable；In judged result for, in the case of being, allocating pre-coding frequency domain granularity parameter K is X；Judging knot In the case that fruit is no, allocating pre-coding frequency domain granularity parameter K is Y；Mode three, when configured information is that feedback model matches somebody with somebody confidence When order is indicated, include the step of the precoding frequency domain granularity parameter/measurement restriction parameter for configuring CSI-RS：Detection feedback model configuration Feedback model in signaling instruction；When feedback model is first kind preset mode set, allocating pre-coding frequency domain granularity parameter K For X；When feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, allocating pre-coding frequency domain granularity ginseng Number K is Y；Mode four, when configured information is to feed back classification Class configured information, configures the precoding frequency domain grain of CSI-RS Degree parameter/measurement includes the step of limiting parameter：Feedback classification Class in detection feedback classification Class configured information；Work as feedback When classification Class is the second feedback classification, allocating pre-coding frequency domain granularity parameter K is X；When feedback classification Class is first anti- During feedback classification, allocating pre-coding frequency domain granularity parameter K is Y；Mode five, when configured information is channel status reference signal CSI-RS Classification Type configured information when, include the step of the precoding frequency domain granularity parameter/measurement restriction parameter for configuring CSI-RS：Inspection Classification Type surveyed in the classification Type configured information of channel status reference signal CSI-RS；When classification Type is first category, Allocating pre-coding frequency domain granularity parameter K is X；When classification Type is second category, allocating pre-coding frequency domain granularity parameter K is Y；Mode six, when configured information is feedback system configured information, configures the precoding frequency domain granularity parameter/measurement limit of CSI-RS The step of parameter processed, includes：Feedback system in detection feedback system configured information；When feedback system is periodic feedback, match somebody with somebody Precoding frequency domain granularity parameter K is put for X；When feedback system is that aperiodicity is fed back, allocating pre-coding frequency domain granularity parameter K For Y；Wherein, X and Y is unequal, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is current to X Bandwidth maximum wireless carries RB numbers, and X<Y.

Alternatively, the specific example in the present embodiment may be referred to the example described in above-described embodiment and optional embodiment, The present embodiment will not be described here.

Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general calculating Realizing, they can concentrate on single computing device device, or be distributed on the network constituted by multiple computing devices, Alternatively, they can be realized with the executable program code of computing device, it is thus possible to be stored in storage device In by computing device performing, and in some cases, can be performing shown or described step different from order herein Suddenly, each integrated circuit modules or by them is fabricated to respectively, or the multiple modules or step in them is fabricated to single Integrated circuit modules are realizing.So, the present invention is not restricted to any specific hardware and software combination.

The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for those skilled in the art For, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, etc. With replacement, improvement etc., should be included within the scope of the present invention.

Claims

1. a kind of collocation method of channel parameter, it is characterised in that include：

Base station configures configured information；

Precoding frequency domain granularity of the base station according to the configured information configurating channel state reference signal CSI-RS Parameter/measurement limits parameter.

2. method according to claim 1, it is characterised in that the configured information includes at least one of：It is high-rise Frequency domain granularity parameter configuration signaling, physical layer frequency domain granularity parameter signalling are indicated, the non-enable of precoding matrix indicators PMI disabling signalings are indicated, feedback model configuration signal is indicated, feedback classification Class configured information, the letter The classification Type configured information and feedback system configured information of road state reference signal CSI-RS.

3. method according to claim 2, it is characterised in that the base station is according to the configured information configurating channel shape The step of precoding frequency domain granularity parameter of state reference signal CSI-RS/measurement limits parameter includes：

Mode one, when the configured information is the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain When grain size parameter signaling is indicated, the precoding frequency domain granularity parameter/measurement for configuring the CSI-RS limits the step of parameter Suddenly include：

Indicate to match somebody with somebody according to the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signalling The precoding frequency domain granularity parameter is put for K；

Mode two, when the configured information is that the PMI disabling signalings are indicated, configures the CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：

Judge that the PMI disabling signalings indicate whether to enable；

In judged result for, in the case of being, configuration precoding frequency domain granularity parameter K is X；

In the case where judged result is no, it is Y to configure precoding frequency domain granularity parameter K；Wherein, X with Y is unequal, and X and Y are integer, and X<Y；

Mode three, when the configured information is that the feedback model configuration signal is indicated, configures the CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：

Detect the feedback model configuration signal indicate in feedback model；

When the feedback model is first kind preset mode set, configuring precoding frequency domain granularity parameter K is X；

When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, configure described pre- Encoded frequency domain grain size parameter K is Y；

Mode four, when the configured information is the feedback classification Class configured information, configures the CSI-RS Precoding frequency domain granularity parameter/measurement include the step of limit parameter：

Feedback classification Class in the detection feedback classification Class configured information；

When feedback classification Class is the second feedback classification, configuring precoding frequency domain granularity parameter K is X；

When feedback classification Class is the first feedback classification, configuring precoding frequency domain granularity parameter K is Y；

Mode five, when classification Type that the configured information is channel status reference signal CSI-RS indicates letter During breath, include the step of the precoding frequency domain granularity parameter/measurement restriction parameter for configuring the CSI-RS：

Detect classification Type in the classification Type configured information of channel status reference signal CSI-RS；

When classification Type is first category, it is X to configure precoding frequency domain granularity parameter K；

When classification Type is second category, it is Y to configure precoding frequency domain granularity parameter K；

Mode six, when the configured information is the feedback system configured information, configures prelisting for the CSI-RS Code frequency domain granularity parameter/measurement includes the step of limiting parameter：

Detect the feedback system in the feedback system configured information；

When the feedback system is periodic feedback, it is X to configure precoding frequency domain granularity parameter K；

When the feedback system is that aperiodicity is fed back, it is Y to configure precoding frequency domain granularity parameter K；

Wherein, X and Y is unequal, and X and Y is integer, and X is more than or equal to 1, Y less than or equal to M, M RB numbers, and X are carried for current bandwidth maximum wireless<Y.

4. method according to claim 3, it is characterised in that precoding frequency domain granularity parameter K is worked as according to described Front bandwidth determines.

5. method according to claim 3, it is characterised in that classification Type of channel status reference signal CSI-RS Classification Type in configured information includes at least one of：Cycle CSI-RS, CSI-RS aperiodic, precoding CSI-RS, non-precoded CSI-RS, full bandwidth CSI-RS, fractional bandwidth CSI-RS, the CSI-RS of aggregation configuration and non- The CSI-RS of aggregation configuration.

6. method according to claim 3, it is characterised in that the precoding frequency domain granularity parameter includes：CSI-RS Binding state and/or CSI-RS binding granularities.

7. method according to claim 6, it is characterised in that methods described also includes：The base station passes through the height Layer frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter signalling indicate the binding shape of the configuration CSI-RS State, the binding state include：Bind or without binding.

8. a kind of acquisition methods of channel parameter, it is characterised in that include：

Terminal receives the configured information that base station sends；

The terminal obtains the precoding frequency domain granularity of channel status reference signal CSI-RS according to the configured information Parameter/measurement limits parameter.

9. method according to claim 8, it is characterised in that the configured information includes at least one of：It is high-rise Frequency domain granularity parameter configuration signaling, physical layer frequency domain granularity parameter signalling are indicated, the non-enable of precoding matrix indicators PMI disabling signalings are indicated, feedback model configuration signal is indicated, feedback classification Class configured information, the letter The classification Type configured information of road state reference signal CSI-RS, feedback system configured information and default granularity ginseng Number.

10. method according to claim 9, it is characterised in that the terminal obtains channel shape according to the configured information The step of precoding frequency domain granularity parameter of state reference signal CSI-RS/measurement limits parameter includes：

Mode one, when the configured information is the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain When grain size parameter signaling is indicated, the precoding frequency domain granularity parameter/measurement for obtaining the CSI-RS limits the step of parameter Suddenly include：

Indicate to obtain according to the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter signalling The precoding frequency domain granularity parameter is taken for K；

Mode two, when the configured information is that the PMI disabling signalings are indicated, obtains the CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：

Judge that the PMI disabling signalings indicate whether to enable；

In judged result for, in the case of being, acquisition precoding frequency domain granularity parameter K is X；

In the case where judged result is no, it is Y to obtain precoding frequency domain granularity parameter K；Wherein, X with Y is unequal, and X and Y are integer, and X<Y；

Mode three, when the configured information is that the feedback model configuration signal is indicated, obtains the CSI-RS's The step of precoding frequency domain granularity parameter/measurement limits parameter includes：

Detect the feedback model configuration signal indicate in feedback model；

When the feedback model is first kind preset mode set, obtaining precoding frequency domain granularity parameter K is X；

When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, obtain described pre- Encoded frequency domain grain size parameter K is Y；

Mode four, when the configured information is the feedback classification Class configured information, obtains the CSI-RS Precoding frequency domain granularity parameter/measurement include the step of limit parameter：

When feedback classification Class is the second feedback classification, obtaining precoding frequency domain granularity parameter K is X；

When feedback classification Class is the first feedback classification, obtaining precoding frequency domain granularity parameter K is Y；

Mode five, when classification Type that the configured information is channel status reference signal CSI-RS indicates letter During breath, include the step of the precoding frequency domain granularity parameter/measurement restriction parameter for obtaining the CSI-RS：

When classification Type is first category, it is X to obtain precoding frequency domain granularity parameter K；

When classification Type is second category, it is Y to obtain precoding frequency domain granularity parameter K；

Mode six, when the configured information is the feedback system configured information, obtains prelisting for the CSI-RS Code frequency domain granularity parameter/measurement includes the step of limiting parameter：

Detect the feedback system in the feedback system configured information；

When the feedback system is periodic feedback, it is X to obtain precoding frequency domain granularity parameter K；

When the feedback system is that aperiodicity is fed back, it is Y to obtain precoding frequency domain granularity parameter K；

Wherein, X and Y is unequal, and X and Y is integer, and X is more than or equal to 1, Y less than or equal to M, M RB numbers, and X are carried for current bandwidth maximum wireless<Y；

Mode seven, when the configured information is the default grain size parameter, obtains the precoding of the CSI-RS The step of frequency domain granularity parameter/measurement limits parameter includes：

It is K that the precoding frequency domain granularity parameter is obtained according to the default grain size parameter.

11. methods according to claim 10, it is characterised in that precoding frequency domain granularity parameter K is according to described Current bandwidth determines.

12. methods according to claim 10, it is characterised in that the classification of channel status reference signal CSI-RS Classification Type in Type configured informations includes at least one of：Cycle CSI-RS, CSI-RS aperiodic, prelist Code CSI-RS, non-precoded CSI-RS, full bandwidth CSI-RS, fractional bandwidth CSI-RS, the CSI-RS of aggregation configuration With the CSI-RS of non-polymeric configuration.

13. methods according to claim 10, it is characterised in that the precoding frequency domain granularity parameter includes：CSI-RS Binding state and/or CSI-RS binding granularities.

14. methods according to claim 13, it is characterised in that methods described also includes：The terminal is by described High-rise frequency domain granularity parameter configuration signaling or physical layer frequency domain granularity parameter signalling indicate the binding for obtaining the CSI-RS State, the binding state include：Bind or without binding.

15. a kind of collocation methods of channel parameter, it is characterised in that include：

Base station configures configured information；

Precoding time domain granularity of the base station according to the configured information configurating channel state reference signal CSI-RS Parameter/measurement limits parameter.

16. methods according to claim 15, it is characterised in that the configured information includes at least one of：In advance The non-enable PMI disabling signalings of encoder matrix designator are indicated, feedback model configuration signal is indicated, feedback classification Class configured informations, the channel status reference signal configuration CSI-RS configuration configured informations, feedback side The Report Type of formula configured information, antenna port number configured information and CSI.

17. methods according to claim 16, it is characterised in that the base station is according to the configured information configurating channel The step of precoding time domain grain size parameter of state reference signal CSI-RS/measurement limits parameter includes：

Mode one, when the configured information is that the PMI disabling signalings are indicated, configures the CSI-RS's The step of precoding time domain grain size parameter/measurement limits parameter includes：

Judge that the PMI disabling signalings indicate whether to enable；

In judged result for, in the case of being, the configuration precoding time domain grain size parameter K is X；

In the case where judged result is no, it is Y to configure the precoding time domain grain size parameter K；Wherein, X with Y is unequal, and X and Y are integer, and X<Y；

Mode two, when the configured information is that the feedback model configuration signal is indicated, configurating channel state reference The step of precoding time domain grain size parameter of signal CSI-RS/measurement limits parameter includes：

Detect the feedback model configuration signal indicate in feedback model；

When the feedback model is first kind preset mode set, configuring the precoding time domain grain size parameter K is X；

When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, configure described pre- Coded time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；

Mode three, when the configured information is the feedback classification Class configured information, configurating channel state ginseng The step of precoding time domain grain size parameter/measurement restriction parameter for examining signal CSI-RS, includes：

When feedback classification Class is the second feedback classification, configuring the precoding time domain grain size parameter K is X；

When feedback classification Class is the first feedback classification, configuring the precoding time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is X Current bandwidth maximum wireless carries RB numbers, and X<Y；

Mode four, when the configured information refers to for the channel status reference signal configuration CSI-RS configuration When showing information, the precoding time domain grain size parameter/measurement of configurating channel state reference signal CSI-RS limits parameter Step includes：

The base station configures a set of CSI-RS configuration, and the CSI-RS configuration include multiple resources Set, wave beam one resource collection of correspondence, the different corresponding wave beams of the resource collection are different, the resource Multiple ports are included in set, the port has identical precoding；

After the base station determines CSI-RS configuration, configuration institute is indicated by high-level signaling/physical layer signaling Precoding time domain grain size parameter is stated for K；

Mode five, when the configured information is the feedback system configured information, configurating channel state reference signal The step of precoding time domain grain size parameter of CSI-RS/measurement limits parameter includes：

Detect the feedback system in the feedback system configured information；

When the feedback system is periodic feedback, it is X to configure the precoding time domain grain size parameter K；

When the feedback system is that aperiodicity is fed back, it is Y to configure the precoding time domain grain size parameter K；Its In, X is unequal with Y, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is current to X Bandwidth maximum wireless carries RB numbers, and X<Y；

Mode six, when the configured information is the antenna port number configured information, configurating channel state reference letter The step of precoding time domain grain size parameter of number CSI-RS/measurement limits parameter includes：

When the antenna port number that the base station is used for transmission is M₁When, configure the precoding time domain grain size parameter K For X；

When the antenna port number that the base station is used for transmission is M₂When, configure the precoding time domain grain size parameter K For Y；

Wherein, X and Y is unequal, and X and Y is integer, works as M₁Less than or equal to M₂When, X is more than or equal to Y；

Mode seven, when Report Type of the configured information for CSI, configurating channel state reference signal CSI-RS Precoding time domain grain size parameter // measurement include the step of limit parameter：

Can periodically reset with the periodic feedback of the Report Type of the CSI according to time domain grain size parameter, The most long period of Report Type of the base station by the CSI is configuring the reset cycle and/or son of binding state Frame is biased.

18. methods according to claim 17, it is characterised in that the precoding time domain grain size parameter includes：CSI-RS Binding state and/or CSI-RS binding granularities.

19. a kind of acquisition methods of channel parameter, it is characterised in that include：

Terminal receives the configured information that base station sends；

The terminal obtains the precoding time domain granularity of channel status reference signal CSI-RS according to the configured information Parameter/measurement limits parameter.

20. methods according to claim 19, it is characterised in that the configured information includes at least one of：In advance The non-enable PMI disabling signalings of encoder matrix designator are indicated, feedback model configuration signal is indicated, feedback classification Class configured informations, resource Resource specific configured informations, feedback system configured information, antenna port number Configured information and CSI report type.

21. methods according to claim 20, it is characterised in that the terminal obtains channel according to the configured information The step of precoding time domain grain size parameter of state reference signal CSI-RS/measurement limits parameter includes：

Mode one, when the configured information is that the PMI disabling signalings are indicated, obtains the CSI-RS's The step of precoding time domain grain size parameter/measurement limits parameter includes：

Judge that the PMI disabling signalings indicate whether to enable；

In judged result for, in the case of being, the acquisition precoding time domain grain size parameter K is X；

In the case where judged result is no, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X with Y is unequal, and X and Y are integer, and X<Y；

Mode two, when the configured information is that the feedback model configuration signal is indicated, obtains channel status reference The step of precoding time domain grain size parameter of signal CSI-RS/measurement limits parameter includes：

Detect that the feedback model obtains the feedback model during signaling is indicated；

When the feedback model is first kind preset mode set, obtaining the precoding time domain grain size parameter K is X；

When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode set, obtain described pre- Coded time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；

Mode three, when the configured information is the feedback classification Class configured information, obtains channel status ginseng The step of precoding time domain grain size parameter/measurement restriction parameter for examining signal CSI-RS, includes：

When feedback classification Class is the second feedback classification, obtaining the precoding time domain grain size parameter K is X；

When feedback classification Class is the first feedback classification, obtaining the precoding time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X<Y；

Mode four, when the configured information is the resource Resource specific configured informations, obtains channel shape The step of precoding time domain grain size parameter of state reference signal CSI-RS/measurement limits parameter includes：

The terminal determines a set of CSI-RS of base station configuration according to the resource Resource specific configured informations The resource collection number included in configuration；

The terminal obtains channel status reference signal CSI-RS according to the high level for receiving/physical layer indication signaling Precoding time domain grain size parameter is K；

Mode five, when the configured information is the feedback system configured information, obtains channel status reference signal The step of precoding time domain grain size parameter of CSI-RS/measurement limits parameter includes：

Detect the feedback system in the feedback system configured information；

When the feedback system is periodic feedback, it is X to obtain the precoding time domain grain size parameter K；

When the feedback system is that aperiodicity is fed back, it is Y to obtain the precoding time domain grain size parameter K；

Wherein, X<Y；

Mode six, when the configured information is the antenna port number configured information, obtains channel status with reference to letter The step of precoding time domain grain size parameter of number CSI-RS/measurement limits parameter includes：

When the terminal determine base station for transmission antenna port number be M₁When, obtain the precoding time domain grain Degree parameter K is X；

When the terminal determine base station for transmission antenna port number be M₂When, obtain the precoding time domain grain Degree parameter K is Y；

Mode seven, when Report Type of the configured information for CSI, obtains channel status reference signal CSI-RS Precoding time domain grain size parameter // measurement include the step of limit parameter：

The most long period of Report Type of the terminal by the CSI determines the periodic reset of the binding state of CSI-RS And/or the sub-frame offset of binding state.

22. methods according to claim 21, it is characterised in that the precoding time domain grain size parameter includes：CSI-RS Binding state and/or CSI-RS binding granularities.

23. a kind of configuration devices of channel parameter, it is characterised in that include：

First configuration module, for configuring configured information；

Second configuration module, for the precoding according to the configured information configurating channel state reference signal CSI-RS Frequency domain granularity parameter/measurement limits parameter.

24. devices according to claim 23, it is characterised in that include at least one of in the configured information： High-rise frequency domain granularity parameter configuration signaling, physical layer frequency domain granularity parameter signalling are indicated, precoding matrix indicators are non- Enable that PMI disabling signalings are indicated, feedback model configuration signal is indicated, feedback classification Class configured information, In the case of the classification Type configured information and feedback system configured information of channel status reference signal CSI-RS, Second configuration module, including：

First dispensing unit, is the high-rise frequency domain granularity parameter configuration signaling or described for working as the configured information When physical layer frequency domain granularity parameter signalling is indicated, the precoding frequency domain granularity parameter/measurement limit of the CSI-RS is configured Parameter processed, wherein, believe according to the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter Order indicates that the configuration precoding frequency domain granularity parameter is K；Or,

Second dispensing unit, for when the configured information is that the PMI disabling signalings are indicated, configuring institute The precoding frequency domain granularity parameter/measurement for stating CSI-RS limits parameter, wherein, judge the PMI disabling letters Order indicates whether to enable；In judged result for, in the case of being, configuration precoding frequency domain granularity parameter K is X； In the case where judged result is no, it is Y to configure precoding frequency domain granularity parameter K, wherein, X and Y is not Equal, X and Y are integer, and X<Y；Or,

3rd dispensing unit, for when the configured information is that the feedback model configuration signal is indicated, configuring institute The precoding frequency domain granularity parameter/measurement for stating CSI-RS limits parameter, wherein, detect that the feedback model matches somebody with somebody confidence Feedback model in order instruction；When the feedback model is first kind preset mode set, the precoding is configured Frequency domain granularity parameter K is X；When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode collection During conjunction, it is Y to configure precoding frequency domain granularity parameter K；Or,

4th dispensing unit, for when the configured information is the feedback classification Class configured information, configuring The precoding frequency domain granularity parameter of the CSI-RS/measurement limits parameter, wherein, detect feedback classification Class Feedback classification Class in configured information；When feedback classification Class is the second feedback classification, configuration is described Precoding frequency domain granularity parameter K is X；When feedback classification Class is the first feedback classification, configuration is described Precoding frequency domain granularity parameter K is Y；Or,

5th dispensing unit, for when the classification that the configured information is channel status reference signal CSI-RS During Type configured informations, the precoding frequency domain granularity parameter/measurement for configuring the CSI-RS limits parameter, wherein, Detect classification Type in the classification Type configured information of channel status reference signal CSI-RS；When the class When other Type is first category, it is X to configure precoding frequency domain granularity parameter K；When classification Type is During second category, it is Y to configure precoding frequency domain granularity parameter K；Or,

6th dispensing unit, for when the configured information is the feedback system configured information, configuration is described The precoding frequency domain granularity parameter of CSI-RS/measurement limits parameter, wherein, in detecting the feedback system configured information Feedback system；For when the feedback system is periodic feedback, configuring the precoding frequency domain granularity parameter K is X；When the feedback system is that aperiodicity is fed back, it is Y to configure precoding frequency domain granularity parameter K； Wherein, X and Y is unequal, and X and Y is integer, and more than or equal to 1, Y less than or equal to M, M is to work as to X Front bandwidth maximum wireless carries RB numbers, and X<Y.

25. a kind of acquisition device of channel parameter, it is characterised in that include：

Acquisition module, for the precoding frequency domain of channel status reference signal CSI-RS is obtained according to the configured information Grain size parameter/measurement limits parameter.

26. devices according to claim 25, it is characterised in that include at least one of in the configured information： High-rise frequency domain granularity parameter configuration signaling, physical layer frequency domain granularity parameter signalling are indicated, precoding matrix indicators are non- Enable that PMI disabling signalings are indicated, feedback model configuration signal is indicated, feedback classification Class configured information, The classification Type configured information of channel status reference signal CSI-RS, feedback system configured information and default In the case of grain size parameter, the acquisition module includes：

First acquisition unit, is the high-rise frequency domain granularity parameter configuration signaling or described for working as the configured information When physical layer frequency domain granularity parameter signalling is indicated, the precoding frequency domain granularity parameter/measurement limit of the CSI-RS is obtained Parameter processed, wherein, believe according to the high-rise frequency domain granularity parameter configuration signaling or the physical layer frequency domain granularity parameter Order indicates that it is K to obtain the precoding frequency domain granularity parameter；Or,

Second acquisition unit, for when the configured information is that the PMI disabling signalings are indicated, obtaining institute The precoding frequency domain granularity parameter/measurement for stating CSI-RS limits parameter, wherein, judge the PMI disabling letters Order indicates whether to enable；In judged result for, in the case of being, acquisition precoding frequency domain granularity parameter K is X； In the case where judged result is no, it is Y to obtain precoding frequency domain granularity parameter K, wherein, X and Y is not Equal, X and Y are integer, and X<Y；Or,

3rd acquiring unit, for when the configured information is that the feedback model configuration signal is indicated, obtaining institute The precoding frequency domain granularity parameter/measurement for stating CSI-RS limits parameter, wherein, detect that the feedback model matches somebody with somebody confidence Feedback model in order instruction；When the feedback model is first kind preset mode set, the precoding is obtained Frequency domain granularity parameter K is X；When the feedback model is the set of Equations of The Second Kind preset mode or the 3rd class preset mode collection During conjunction, it is Y to obtain precoding frequency domain granularity parameter K；Or,

4th acquiring unit, for when the configured information is the feedback classification Class configured information, obtaining The precoding frequency domain granularity parameter of the CSI-RS/measurement limits parameter, wherein, detect feedback classification Class Feedback classification Class in configured information；When feedback classification Class is the second feedback classification, obtain described Precoding frequency domain granularity parameter K is X；When feedback classification Class is the first feedback classification, obtain described Precoding frequency domain granularity parameter K is Y；Or,

5th acquiring unit, for when the classification that the configured information is channel status reference signal CSI-RS During Type configured informations, the precoding frequency domain granularity parameter/measurement for obtaining the CSI-RS limits parameter, wherein, Detect classification Type in the classification Type configured information of channel status reference signal CSI-RS；When the class When other Type is first category, it is X to obtain precoding frequency domain granularity parameter K；When classification Type is During second category, it is Y to obtain precoding frequency domain granularity parameter K；Or,

6th acquiring unit, for when the configured information is the feedback system configured information, obtaining described The precoding frequency domain granularity parameter of CSI-RS/measurement limits parameter, wherein, in detecting the feedback system configured information Feedback system；When the feedback system is periodic feedback, obtaining precoding frequency domain granularity parameter K is X；When the feedback system is that aperiodicity is fed back, it is Y to obtain precoding frequency domain granularity parameter K；

Wherein, X and Y is unequal, and X and Y is integer, and X is more than or equal to 1, Y less than or equal to M, M RB numbers, and X are carried for current bandwidth maximum wireless<Y；Or,

7th acquiring unit, for when the configured information is the default grain size parameter, obtaining the CSI-RS Precoding frequency domain granularity parameter/measurement limit parameter, wherein, obtain described according to the default grain size parameter Precoding frequency domain granularity parameter is K.

27. a kind of configuration devices of channel parameter, it is characterised in that include：

First configuration module, for configuring configured information；

Second configuration module, for the precoding according to the configured information configurating channel state reference signal CSI-RS Time domain grain size parameter/measurement limits parameter.

28. devices according to claim 27, it is characterised in that include at least one of in the configured information： The non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal is indicated, feedback sort Other Class configured informations, the channel status reference signal configuration CSI-RS configuration configured informations, feedback In the case of the Report Type of mode configured information, antenna port number configured information and CSI, the second configuration mould Block includes：

First dispensing unit, for when the configured information is that the PMI disabling signalings are indicated, configuring institute The precoding time domain grain size parameter/measurement for stating CSI-RS limits parameter, wherein, judge the PMI disabling letters Order indicates whether to enable；In judged result for, in the case of being, the configuration precoding time domain grain size parameter K is X； In the case where judged result is no, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y be not Equal, X and Y are integer, and X<Y；Or,

Second dispensing unit, for when the configured information is that the feedback model configuration signal is indicated, with confidence The precoding time domain grain size parameter of road state reference signal CSI-RS/measurement limits parameter, wherein, detect described anti- Feedback model in the signaling instruction of feedback pattern configurations；When the feedback model is first kind preset mode set, match somebody with somebody The precoding time domain grain size parameter K is put for X；When the feedback model is Equations of The Second Kind preset mode set or the 3rd During class preset mode set, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X It is integer with Y, and X<Y；Or,

3rd dispensing unit, for when the configured information is the feedback classification Class configured information, configuring The precoding time domain grain size parameter of channel status reference signal CSI-RS/measurement limits parameter, wherein, detection is described Feedback classification Class in feedback classification Class configured information；When feedback classification Class is the second feedback sort When other, it is X to configure the precoding time domain grain size parameter K；When feedback classification Class is the first feedback sort When other, it is Y to configure the precoding time domain grain size parameter K；Wherein, X and Y is unequal, and X and Y is integer, X is less than or equal to M more than or equal to 1, Y, and M is that current bandwidth maximum wireless carries RB numbers, and X<Y；Or Person,

4th dispensing unit, is channel status reference signal configuration CSI-RS for working as the configured information During configuration configured informations, the precoding time domain grain size parameter of configurating channel state reference signal CSI-RS/ Measurement limits parameter, wherein, a set of CSI-RS configuration are configured, the CSI-RS configuration are included Multiple resource collections, wave beam one resource collection of correspondence, the different corresponding wave beams of the resource collection are different, Multiple ports are included in the resource collection, the port has identical precoding；It is determined that CSI-RS After configuration, indicate that the configuration precoding time domain grain size parameter is K by high-level signaling/physical layer signaling； Or,

5th dispensing unit, for when the configured information be the feedback system configured information when, configurating channel shape The precoding time domain grain size parameter of state reference signal CSI-RS/measurement limits parameter, wherein, detect the feedback side Feedback system in formula configured information；When the feedback system is periodic feedback, the precoding time domain is configured Grain size parameter K is X；When the feedback system is that aperiodicity is fed back, the precoding time domain granularity ginseng is configured Number K is Y；Wherein, X and Y is unequal, and X and Y are integer, and X is less than or equal to M more than or equal to 1, Y, M is that current bandwidth maximum wireless carries RB numbers, and X<Y；Or,

6th dispensing unit, for when the configured information be the antenna port number configured information when, configurating channel The precoding time domain grain size parameter of state reference signal CSI-RS/measurement limits parameter, wherein, when the base station is used In transmission antenna port number be M₁When, it is X to configure the precoding time domain grain size parameter K；When the base station Antenna port number for transmission is M₂When, it is Y to configure the precoding time domain grain size parameter K；Wherein, X Unequal with Y, X and Y is integer, works as M₁Less than or equal to M₂When, X is more than or equal to Y；

7th dispensing unit, for when the configured information for CSI Report Type when, configurating channel state reference The precoding time domain grain size parameter of signal CSI-RS/measurement is limited, wherein, can be with institute according to time domain grain size parameter State the periodic feedback of the Report Type of CSI and periodically reset, by the most long of the Report Type of the CSI Cycle configures the reset cycle and/or sub-frame offset of binding state.

29. a kind of acquisition device of channel parameter, it is characterised in that include：

Acquisition module, for the precoding time domain of channel status reference signal CSI-RS is obtained according to the configured information Grain size parameter/measurement limits parameter.

30. devices according to claim 29, it is characterised in that include at least one of in the configured information： The non-enable PMI disabling signalings of precoding matrix indicators are indicated, feedback model configuration signal is indicated, feedback sort Other Class configured informations, resource Resource specific configured informations, feedback system configured information, antenna port In the case of number configured information and CSI report type, the acquisition module includes：

First acquisition unit, for when the configured information is that the PMI disabling signalings are indicated, obtaining institute The precoding time domain grain size parameter/measurement for stating CSI-RS limits parameter, wherein, judge the PMI disabling letters Order indicates whether to enable；In judged result for, in the case of being, the acquisition precoding time domain grain size parameter K is X； In the case where judged result is no, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X and Y be not Equal, X and Y are integer, and X<Y；Or,

Second acquisition unit, for when the configured information is that the feedback model configuration signal is indicated, obtaining letter The precoding time domain grain size parameter of road state reference signal CSI-RS/measurement limits parameter, wherein, detect described anti- Feedback model in the signaling instruction of feedback pattern acquiring；When the feedback model is first kind preset mode set, obtain The precoding time domain grain size parameter K is taken for X；When the feedback model is Equations of The Second Kind preset mode set or the 3rd During class preset mode set, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X and Y is unequal, X It is integer with Y, and X<Y；Or,

3rd acquiring unit, for when the configured information is the feedback classification Class configured information, obtaining The precoding time domain grain size parameter of channel status reference signal CSI-RS/measurement limits parameter, wherein, detection is described Feedback classification Class in feedback classification Class configured information；When feedback classification Class is the second feedback sort When other, it is X to obtain the precoding time domain grain size parameter K；When feedback classification Class is the first feedback sort When other, it is Y to obtain the precoding time domain grain size parameter K；Wherein, X and Y is unequal, and X and Y is integer, And X<Y；Or,

4th acquiring unit, for when the configured information be the resource Resource specific configured informations when, The precoding time domain grain size parameter/measurement for obtaining channel status reference signal CSI-RS limits parameter, wherein, foundation The resource Resource specific configured informations are included in determining a set of CSI-RS configuration that base station configures Resource collection number；Channel status reference signal CSI-RS is obtained according to the high level for receiving/physical layer indication signaling Precoding time domain grain size parameter be K；Or,

5th acquiring unit, for when the configured information is the feedback system configured information, obtaining channel shape The precoding time domain grain size parameter of state reference signal CSI-RS/measurement limits parameter, wherein, detect the feedback side Feedback system in formula configured information；When the feedback system is periodic feedback, the precoding time domain is obtained Grain size parameter K is X；When the feedback system is that aperiodicity is fed back, the precoding time domain granularity ginseng is obtained Number K is Y；Wherein, X<Y；Or,

6th acquiring unit, for when the configured information is the antenna port number configured information, obtaining channel The precoding time domain grain size parameter of state reference signal CSI-RS/measurement limits parameter, wherein, when the terminal it is true Determine base station for transmission antenna port number be M₁When, it is X to obtain the precoding time domain grain size parameter K；When The terminal determine base station for transmission antenna port number be M₂When, obtain the precoding time domain grain size parameter K is Y；Wherein, X and Y is unequal, and X and Y is integer, works as M₁Less than or equal to M₂When, X is more than or waits In Y.

7th acquiring unit, for when the configured information for CSI Report Type when, obtain channel status reference The precoding time domain grain size parameter of signal CSI-RS/measurement limits parameter, wherein, by the Report Type of the CSI Most long period determine CSI-RS binding state periodic reset and/or the sub-frame offset of binding state.

A kind of configuration of 31. channel parameters obtains system, it is characterised in that include：Base station and terminal, the base station and terminal Communication connection, wherein,

The base station is the acquisition device of the channel parameter any one of claim 23 and 24；

The terminal is the acquisition device of the channel parameter any one of claim 25 and 26；

Or, the base station is the acquisition device of the channel parameter any one of claim 27 and 28；

The terminal is the acquisition device of the channel parameter any one of claim 29 and 30.