CN103825663B - Channel state information measurement and device - Google Patents
Channel state information measurement and device Download PDFInfo
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- CN103825663B CN103825663B CN201410060282.4A CN201410060282A CN103825663B CN 103825663 B CN103825663 B CN 103825663B CN 201410060282 A CN201410060282 A CN 201410060282A CN 103825663 B CN103825663 B CN 103825663B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
Abstract
The invention discloses a kind of channel state information measurement and device, this channel state information measurement comprises: receive the channel status metrical information that network side sends, wherein, channel status metrical information comprises the metrical information based on CSI-RS and the metrical information based on CRS; According to channel status metrical information, carry out channel condition information measurement.The present invention carries out channel condition information measurement by conjunctive use CSI-RS and CRS, thus take full advantage of existing CSI-RS, CRS structure and many CSI process mechanism, and then avoid the expense of reference signal to a certain extent, and owing to being that conjunctive use CSI-RS and CRS carries out channel condition information measurement, therefore the measurement result of all right comprehensive CSI-RS and CRS, for base station scheduling and precoding/wave beam forming provide larger flexibility ratio.
Description
Technical field
The present invention relates to communication technical field, specifically, relate to a kind of channel state information measurement and device.
Background technology
In view of MIMO (MultipleInputMultipleOutput, multiple-input, multiple-output) technology is for the important function improving peak rate and system spectrum utilance, so existing LTE(LongTermEvolution, long evolving system)/LTE-A(LTE-Advanced, Long Term Evolution enhanced system) etc. wireless access technology be all with MIMO+OFDM(OrthogonalFrequencyDivisionMultiplexing, OFDM) to build based on technology and.And come from the obtainable spatial degrees of freedom of multiaerial system due to the performance gain of MIMO technology, therefore, the important evolution tendency of in Standardization Development process one of MIMO technology is the expansion of dimension.
Adopting traditional PAS(PassiveAntennaSystem, passive antenna system) structure base station antenna system in, multiple antenna port (each port correspond to independently radio frequency-intermediate frequency-Baseband Channel) is horizontal, wherein, connected by radio frequency cable between the multiple a period of time of the vertical dimension that each port is corresponding, therefore, existing MIMO technology by realizing the optimization of each port signal in horizontal dimension spatial character the adjustment of the relative amplitude/phase place between different port in horizontal dimension, then can only can only adopt unified sector-level figuration in vertical dimension.And introduce AAS(ActiveAntennaSystem in mobile communication system, active antenna system) after technology, base station antenna system can obtain the larger degree of freedom in vertical dimension, can realize UE(UserEquipment, user terminal at three dimensions) signal optimizing of level.
Based on above-mentioned situation, the direction of MIMO technology towards three dimensional stress and large-scale advances by industrial circle further.At present, 3GPP is carrying out the research project of 3D Channel Modeling, thereafter estimate also will to carry on 8 radio ports and following elevationBeamforming(EBF, elevation beam figuration) with more than the FD-MIMO(FullDimensionMIMO of 8 ports (as 16,32 or 64), entirely tie up multiple-input, multiple-output) technical research and standardization effort.What academia then more looked forward to the prospect carried out for based on the research of the more MIMO technology of large-scale antenna array (comprising 100 or hundreds of, even more a period of time) and test job.Academic research and preliminary channel measured result show, the extensive multiple-input, multiple-output of MassiveMIMO() technology can greatly elevator system band utilization efficiency, supports the access user of larger quantity.Therefore, massiveMIMO technology is all considered as one of most potential physical-layer techniques in next generation mobile communication system by Ge great research organization.
But, in MIMO technology, especially for MU-MIMO technology, the channel condition information precision that network side can obtain is by the usefulness of the precision and dispatching algorithm that directly determine precoding/wave beam forming, thus have influence on total system system energy, therefore, the acquisition of channel condition information always is one of problem most crucial in MIMO technology standardization.And for FDD(FrequencyDivisionDuplexing, Frequency Division Duplexing (FDD)) system, owing to there is larger frequency interval between uplink downlink, general to be difficult to directly by the measurement acquisition downlink channel condition information of up channel, to measure based on downlink reference signal so existing FDD system generally adopts and to feed back the mechanism of CSI.In this case, the spatial resolution of channel condition information directly depends on the port number of reference signal.When aerial array is on a grand scale, if introduce new reference signal port to ensure descending, significant running time-frequency resource expense will be brought.If but restriction reference signal port number, the spatial resolution that downlink channel condition information is measured can not be ensured again, thus the performance advantage of massiveMIMO cannot be played.And if continue to use the mechanism of many CSI process, in each process, respectively channel estimating is carried out to specific antenna port by the CSI-RS port corresponding to this process, although 3D channel measurement can be realized.But, reference signal expense can be increased equally based on many CSI process of CSI-RS.
For in above-mentioned technology, no matter be introduce new reference signal port, the many CSI process still continued to use based on CSI-RS all will inevitably increase the problem of reference signal expense, not yet proposes effective solution at present.
Summary of the invention
For the problem in correlation technique, the present invention proposes a kind of channel state information measurement and device.
To achieve these goals, according to an aspect of the present invention, a kind of channel state information measurement is provided.
This channel state information measurement comprises: receive the channel status metrical information that network side sends, wherein, channel status metrical information comprises the metrical information based on CSI-RS and the metrical information based on CRS; According to channel status metrical information, carry out channel condition information measurement.
Wherein, on the one hand, channel status metrical information can comprise: network side is to multiple CSI processes of terminal configuration; Wherein, in multiple CSI process, at least there is a CSI process and be configured to measure based on CRS, and each CSI process is a corresponding reference signal resource respectively.
Further, the quantity being configured to carry out based on CRS the CRS port of the CSI process measured is identical with the quantity of the CRS port that PBCH uses.
Wherein, above-mentioned reference signal resource comprises CSI-RS reference signal resource and/or CRS reference signal resource.
And on the other hand, channel status metrical information also can comprise: the independent control information that network side sends to terminal, wherein, control information carries out channel condition information measurement for notification terminal based on CRS; And network side is to multiple CSI processes of terminal configuration, wherein, each CSI process corresponding CSI-RS reference signal resource respectively.
Wherein, the reference signal resource in above-mentioned two aspects include following one of at least: the type of reference signal, the port number of reference signal, the sequence of reference signal, the pattern of reference signal.
In addition, in such scheme, according to channel status metrical information, when carrying out channel condition information measurement, according to the measurement to the reference signal corresponding to each CSI process, corresponding CSI can be calculated respectively and reports this CSI; Also CSI can be calculated respectively according to the measurement of the CSI-RS corresponding to each CSI process, and according to the CSI corresponding to the survey calculation of CRS, and then report CSI; According to the measurement to all available reference signal resources, unified CSI can also be calculated and reports this CSI.
Wherein, the mode that CSI reports can be report part CSI, also can be report whole CSI.
In addition, this channel state information measurement also can comprise: when reporting CSI, the CSI obtained based on CRS measurement if report and report the CSI obtained based on CSI-RS measurement to clash, then according to the information reporting priority sent through network side received in advance, optionally report corresponding CSI.
According to a further aspect in the invention, a kind of channel condition information measurement mechanism is provided.
This channel condition information measurement mechanism comprises: receiver module, and for receiving the channel status metrical information that network side sends, wherein, channel status metrical information comprises the metrical information based on CSI-RS and the metrical information based on CRS; Measurement module, for according to channel status metrical information, carries out channel condition information measurement.
Wherein, on the one hand, channel status metrical information can comprise: multiple CSI processes of network side configuration, wherein, in multiple CSI process, at least there is a CSI process and be configured to measure based on CRS, further, each CSI process corresponding reference signal resource respectively.
Further, the quantity being configured to carry out based on CRS the CRS port of the CSI process measured is identical with the quantity of the CRS port that PBCH uses.
Wherein, CSI-RS reference signal resource and/or CRS reference signal resource is comprised at above-mentioned reference signal resource.
And on the other hand, channel status metrical information also can comprise: the independent control information that network side sends, wherein, control information is for notifying that measurement module carries out channel condition information measurement based on CRS; And multiple CSI processes of network side configuration, wherein, each CSI process is a corresponding CSI-RS reference signal resource respectively.
Wherein, the reference signal resource in above-mentioned two aspects include following one of at least: the type of reference signal, the port number of reference signal, the sequence of reference signal, the pattern of reference signal.
In addition, in such scheme, according to channel status metrical information, carry out channel condition information when measuring, measurement module can be used for the measurement to the reference signal corresponding to each CSI process, calculates corresponding CSI respectively and reports this CSI; Also may be used for according to calculating CSI respectively to the measurement of the CSI-RS corresponding to each CSI process, and according to the CSI corresponding to the survey calculation of CRS, and then report CSI; Can also be used for according to the measurement to all available reference signal resources simultaneously, calculate unified CSI and report this CSI.
Wherein, the mode that CSI reports can be report part CSI, also can be report whole CSI.
In addition, when reporting CSI, the CSI obtained based on CRS measurement if report and report the CSI obtained based on CSI-RS measurements to clash, then measurement module can be further used for the information reporting priority sent through network side that receives in advance according to receiver module, optionally reports the CSI of correspondence.
The present invention carries out channel condition information measurement by conjunctive use CSI-RS and CRS, thus take full advantage of existing CSI-RS, CRS structure and many CSI process mechanism, and then avoid the expense of reference signal to a certain extent, and owing to being that conjunctive use CSI-RS and CRS carries out channel condition information measurement, therefore the measurement result of all right comprehensive CSI-RS and CRS, for base station scheduling and precoding/wave beam forming provide larger flexibility ratio.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the channel state information measurement according to the embodiment of the present invention;
Fig. 2 is the structural representation of the channel condition information measurement mechanism according to the embodiment of the present invention;
Fig. 3 is the exemplary block diagram of the computer realizing technical solution of the present invention.
Embodiment
To be described one exemplary embodiment of the present invention by reference to the accompanying drawings hereinafter.For clarity and conciseness, all features of actual execution mode are not described in the description.But, should understand, must make a lot specific to the decision of execution mode in the process of any this practical embodiments of exploitation, to realize the objectives of developer, such as, meet those restrictive conditions relevant to system and business, and these restrictive conditions may change to some extent along with the difference of execution mode.In addition, although will also be appreciated that development is likely very complicated and time-consuming, concerning the those skilled in the art having benefited from present disclosure, this development is only routine task.
At this, also it should be noted is that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related apparatus structure of the solution of the present invention and/or treatment step, and eliminate other details little with relation of the present invention.
According to embodiments of the invention, provide a kind of channel state information measurement.
As shown in Figure 1, comprise according to the channel state information measurement of the embodiment of the present invention:
Step S101, receive the channel status metrical information that network side sends, wherein, channel status metrical information comprises the metrical information based on CSI-RS and the metrical information based on CRS;
Step S103, according to channel status metrical information, carries out channel condition information measurement.
Wherein, on the one hand, channel status metrical information can comprise: network side is to multiple CSI processes of terminal configuration; Wherein, in multiple CSI process, at least there is a CSI process and be configured to measure based on CRS, and each CSI process is a corresponding reference signal resource respectively.
Further, the quantity being configured to carry out based on CRS the CRS port of the CSI process measured is identical with the quantity of the CRS port that PBCH uses.
Wherein, above-mentioned reference signal resource comprises CSI-RS reference signal resource and/or CRS reference signal resource.
And on the other hand, channel status metrical information also can comprise: the independent control information that network side sends to terminal, wherein, control information carries out channel condition information measurement for notification terminal based on CRS; And network side is to multiple CSI processes of terminal configuration, wherein, each CSI process corresponding CSI-RS reference signal resource respectively.
Wherein, the reference signal resource in above-mentioned two aspects include following one of at least: the type of reference signal, the port number of reference signal, the sequence of reference signal, the pattern of reference signal.
In addition, in such scheme, according to channel status metrical information, when carrying out channel condition information measurement, according to the measurement to the reference signal corresponding to each CSI process, corresponding CSI can be calculated respectively and reports this CSI; Also CSI can be calculated respectively according to the measurement of the CSI-RS corresponding to each CSI process, and according to the CSI corresponding to the survey calculation of CRS, and then report CSI; According to the measurement to all available reference signal resources, unified CSI can also be calculated and reports this CSI.
Wherein, the mode that CSI reports can be report part CSI, also can be report whole CSI.
In addition, this channel state information measurement also can comprise: when reporting CSI, the CSI obtained based on CRS measurement if report and report the CSI obtained based on CSI-RS measurement to clash, then according to the information reporting priority sent through network side received in advance, optionally report corresponding CSI.
Conveniently understand technique scheme of the present invention, below calculating and feedback three aspects from CSI metering system, CSI reporting schemes and CSI are described in detail to technique scheme of the present invention.
In LTE/LTE-A system, comprise Traffic Channel PDSCH(PhysicalDownlinkSharedChannel, Physical Downlink Shared Channel) TM(TransmissionMode, transmission means) 1-7, transmission L1/2(Layer1/2) PDCCH(PhysicalDownlinkControlChannel of control information, physical downlink control channel) and the PBCH(PhysicalBroadcastChannel of transmitting broadcast information, Physical Broadcast Channel) all have employed transmission based on CRS and channel condition information measurement mechanism.Although in LTE/LTE-A systems development process, along with the measurement of reference signal and being separated of transfer function, CRS is just little by little replaced by CSI-RS and URS in the new PDSCHTM8-10 introduced, but no matter from compatibility, or from controlling the transmission of angle with broadcast message, in the follow-up evolution version of LTE, CRS remains indispensable, but in the measurement of many CSI process of at present definition and feedback mechanism, can only CSI-RS be utilized and the reference signal must transmitted in this each subframe of CRS cannot be used, therefore, need the measurement and the feedback mechanism that redefine many CSI process.
In technique scheme of the present invention, the present invention has not only redefined the metering system of CSI, and also redefined the reporting schemes of CSI and the calculating of CSI and feedback mechanism, concrete situation is as follows simultaneously:
For CSI metering system, invention defines two kinds of metering systems, wherein, one is by network side to the multiple CSI process of terminal configuration, and each CSI process corresponds to a reference signal resource, and, in multiple CSI process, at least one CSI process can be had to be configured to carry out measuring based on CRS, and for the CSI process being configured to measure based on CRS process, the CRS port number that its CRS port number and PBCH use is consistent; Another kind sends independent control information notification terminal by network side to carry out channel condition information measurement based on CRS, and by network side to the multiple CSI process of terminal configuration, each CSI process corresponds to a CSI-RS reference signal resource.
Reference signal resource in above-mentioned two kinds of metering systems comprises the information such as type, port number, sequence, pattern of reference signal.
And for CSI reporting schemes, if the present invention is given CRS by network side to terminal agreement and clashes based on reporting of CSI-RS, then optionally abandon some reporting information according to the priority level preset, report the type of CSI (as subband, broadband, PMI-PrecodingMatrixIndication or non-PMI etc.) and the initial time reported and cycle by network side to terminal configuration simultaneously, impel terminal according to the type and initial time and periodic report CSI etc.
And for the calculating of CSI and feedback mechanism, the CSI metering system that the present invention utilizes terminal to configure to network side is measured, calculate CSI simultaneously, the concrete mode calculating CSI then can be divided into three kinds, wherein, one is independent calculating and feedback, concrete, for calculating, CSI(can be calculated respectively mainly for the first metering system) according to the measurement of the reference signal corresponding to each CSI process, the measurement of CSI-RS corresponding to each CSI process can also calculate CSI respectively, simultaneously according to the survey calculation CSI(of CRS mainly for the second metering system), and for feedback, then whole CSI can be selected to feed back, also can, according to the demand of reality, select the CSI of local thread to feed back.Another kind is unified calculation and feedback, concrete, the combination according to obtaining unified CSI(to the measurement of all available reference signal resources and may comprising all or part of information of PMI/RI/CQI), and feed back this CSI.
According to embodiments of the invention, additionally provide a kind of channel condition information measurement mechanism.
As shown in Figure 2, comprise according to a kind of channel condition information measurement mechanism of the embodiment of the present invention:
Receiver module 21, for receiving the channel status metrical information that network side sends, wherein, channel status metrical information comprises the metrical information based on CSI-RS and the metrical information based on CRS;
Measurement module 22, for according to channel status metrical information, carries out channel condition information measurement.
Wherein, on the one hand, channel status metrical information can comprise: multiple CSI processes of network side configuration, wherein, in multiple CSI process, at least there is a CSI process and be configured to measure based on CRS, further, each CSI process corresponding reference signal resource respectively.
Further, the quantity being configured to carry out based on CRS the CRS port of the CSI process measured is identical with the quantity of the CRS port that PBCH uses.
Wherein, CSI-RS reference signal resource and/or CRS reference signal resource is comprised at above-mentioned reference signal resource.
And on the other hand, channel status metrical information also can comprise: the independent control information that network side sends, wherein, control information is for notifying that measurement module 22 carries out channel condition information measurement based on CRS; And multiple CSI processes of network side configuration, wherein, each CSI process is a corresponding CSI-RS reference signal resource respectively.
Wherein, the reference signal resource in above-mentioned two aspects include following one of at least: the type of reference signal, the port number of reference signal, the sequence of reference signal, the pattern of reference signal.
In addition, in such scheme, according to channel status metrical information, carry out channel condition information when measuring, measurement module 22 can be used for the measurement to the reference signal corresponding to each CSI process, calculates corresponding CSI respectively and reports this CSI; Also may be used for according to calculating CSI respectively to the measurement of the CSI-RS corresponding to each CSI process, and according to the CSI corresponding to the survey calculation of CRS, and then report CSI; Can also be used for according to the measurement to all available reference signal resources simultaneously, calculate unified CSI and report this CSI.
Wherein, the mode that CSI reports can be report part CSI, also can be report whole CSI.
In addition, when reporting CSI, the CSI obtained based on CRS measurement if report and report the CSI obtained based on CSI-RS measurement to clash, then measurement module 22 can be further used for the information reporting priority sent through network side that receives in advance according to receiver module 21, optionally reports corresponding CSI.
In sum, by means of technique scheme of the present invention, channel condition information measurement is carried out by conjunctive use CSI-RS and CRS, thus take full advantage of existing CSI-RS, CRS structure and many CSI process mechanism, and then avoid the expense of reference signal to a certain extent, and owing to being that conjunctive use CSI-RS and CRS carries out channel condition information measurement, therefore the measurement result of all right comprehensive CSI-RS and CRS, for base station scheduling and precoding/wave beam forming provide larger flexibility ratio.
Below general principle of the present invention is described in conjunction with specific embodiments, but, it is to be noted, for those of ordinary skill in the art, whole or any step or the parts of method and apparatus of the present invention can be understood, can in the network of any calculation element (comprising processor, storage medium etc.) or calculation element, realized with hardware, firmware, software or their combination, this is that those of ordinary skill in the art use their basic programming skill just can realize when having read explanation of the present invention.
Therefore, object of the present invention can also be realized by an operation program or batch processing on any calculation element.Described calculation element can be known fexible unit.Therefore, object of the present invention also can realize only by the program product of providing package containing the program code realizing described method or device.That is, such program product also forms the present invention, and the storage medium storing such program product also forms the present invention.Obviously, described storage medium can be any storage medium developed in any known storage medium or future.
According to embodiments of the invention, additionally provide a kind of storage medium (this storage medium can be ROM, RAM, hard disk, detachable memory etc.), the computer program for carrying out Resourse Distribute is embedded with in this storage medium, this computer program has the code segment being arranged to and performing following steps: receive the channel status metrical information that network side sends, wherein, channel status metrical information comprises the metrical information based on CSI-RS and the metrical information based on CRS; According to described channel status metrical information, carry out channel condition information measurement.
According to embodiments of the invention, additionally provide a kind of computer program, this computer program has the code segment being arranged to and performing following resource allocation step: receive the channel status metrical information that network side sends, wherein, channel status metrical information comprises the metrical information based on CSI-RS and the metrical information based on CRS; According to described channel status metrical information, carry out channel condition information measurement.
When realizing embodiments of the invention by software and/or firmware, from storage medium or network to the computer with specialized hardware structure, the program forming this software installed by all-purpose computer 300 such as shown in Fig. 3, this computer, when being provided with various program, can perform various function etc.
In figure 3, central processing module (CPU) 301 performs various process according to the program stored in read-only memory (ROM) 302 or from the program that storage area 308 is loaded into random-access memory (ram) 303.In RAM303, also store the data required when CPU301 performs various process etc. as required.CPU301, ROM302 and RAM303 are connected to each other via bus 304.Input/output interface 305 is also connected to bus 304.
Following parts are connected to input/output interface 305: importation 306, comprise keyboard, mouse etc.; Output 307, comprises display, such as cathode ray tube (CRT), liquid crystal display (LCD) etc., and loud speaker etc.; Storage area 308, comprises hard disk etc.; With communications portion 309, comprise network interface unit such as LAN card, modulator-demodulator etc.Communications portion 309 is via network such as internet executive communication process.
As required, driver 310 is also connected to input/output interface 305.Detachable media 311 such as disk, CD, magneto optical disk, semiconductor memory etc. are installed on driver 310 as required, and the computer program therefrom read is installed in storage area 308 as required.
When series of processes above-mentioned by software simulating, from network such as internet or storage medium, such as detachable media 311 installs the program forming software.
It will be understood by those of skill in the art that this storage medium is not limited to wherein having program stored therein shown in Fig. 3, distributes the detachable media 311 to provide program to user separately with device.The example of detachable media 311 comprises disk (comprising floppy disk (registered trade mark)), CD (comprising compact disc read-only memory (CD-ROM) and digital universal disc (DVD)), magneto optical disk (comprising mini-disk (MD) (registered trade mark)) and semiconductor memory.Or hard disk that storage medium can be ROM302, comprise in storage area 308 etc., wherein computer program stored, and user is distributed to together with comprising their device.
Also it is pointed out that in apparatus and method of the present invention, obviously, each parts or each step can decompose and/or reconfigure.These decompose and/or reconfigure and should be considered as equivalents of the present invention.Further, the step performing above-mentioned series of processes can order naturally following the instructions perform in chronological order, but does not need necessarily to perform according to time sequencing.Some step can walk abreast or perform independently of one another.
Although described the present invention and advantage thereof in detail, be to be understood that and can have carried out various change when not departing from the spirit and scope of the present invention limited by appended claim, substituting and conversion.And, the term of the application " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or device and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or device.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the device comprising described key element and also there is other identical element.
Claims (18)
1. a channel state information measurement, is characterized in that, comprising:
Receive the channel status metrical information that network side sends, wherein, described channel status metrical information comprises based on the metrical information of channel status reference signal CSI-RS and the metrical information based on public reference signal CRS;
According to described channel status metrical information, carry out channel condition information measurement;
Wherein, described channel status metrical information comprises further:
Network side is to multiple channel status instruction CSI processes of terminal configuration;
Wherein, in described multiple CSI process, at least there is a CSI process and be configured to measure based on CRS, and each CSI process in described multiple CSI process is a corresponding reference signal resource respectively;
Or,
The independent control information that network side sends to terminal, wherein, described control information is used for notification terminal and carries out channel condition information measurement based on CRS; And
Network side is to multiple CSI processes of terminal configuration, and wherein, described each CSI process is a corresponding CSI-RS reference signal resource respectively.
2. channel state information measurement according to claim 1, is characterized in that, described in be configured to carry out based on CRS the quantity of the CRS port of the CSI process measured identical with the quantity of the CRS port that Physical Broadcast Channel PBCH uses.
3. channel state information measurement according to claim 1, is characterized in that, described reference signal resource comprises CSI-RS reference signal resource and/or CRS reference signal resource.
4. channel state information measurement according to claim 3, is characterized in that, reference signal resource comprise following one of at least:
The type of reference signal, the port number of reference signal, the sequence of reference signal, the pattern of reference signal.
5. channel state information measurement according to claim 1, is characterized in that, according to described channel status metrical information, carries out channel condition information measurement and comprises:
According to the measurement to the reference signal corresponding to each CSI process, calculate corresponding CSI respectively and report this CSI.
6. channel state information measurement according to claim 1, is characterized in that, according to described channel status metrical information, carries out channel condition information measurement and comprises:
CSI is calculated respectively according to the measurement of the CSI-RS corresponding to each CSI process, and according to the CSI corresponding to the survey calculation of CRS, and report CSI.
7. channel state information measurement as claimed in any of claims 1 to 6, is characterized in that, according to described channel status metrical information, carries out channel condition information measurement and comprises:
According to the measurement to all available reference signal resources, calculate unified CSI and report this CSI.
8. the channel state information measurement according to claim 5 or 6, is characterized in that, the mode that described CSI reports comprises and reports part CSI or report whole CSI.
9. channel state information measurement according to claim 8, is characterized in that, comprises further:
When reporting described CSI, the CSI obtained based on CRS measurement if report and report the CSI obtained based on CSI-RS measurements to clash, then according to the information reporting priority sent through network side received in advance, optionally report the CSI of correspondence.
10. a channel condition information measurement mechanism, is characterized in that, comprising:
Receiver module, for receiving the channel status metrical information that network side sends, wherein, described channel status metrical information comprises based on the metrical information of channel status reference signal CSI-RS and the metrical information based on public reference signal CRS;
Measurement module, for according to described channel status metrical information, carries out channel condition information measurement;
Wherein, described channel status metrical information comprises further:
Multiple channel status instruction CSI processes of network side configuration;
Wherein, in described multiple CSI process, at least there is a CSI process and be configured to measure based on CRS, and each CSI process in described multiple CSI process is a corresponding reference signal resource respectively;
Or,
The independent control information that network side sends, wherein, described control information is used for notifying that described measurement module carries out channel condition information measurement based on CRS; And
Multiple CSI processes of network side configuration, wherein, described each CSI process is a corresponding CSI-RS reference signal resource respectively.
11. channel condition information measurement mechanisms according to claim 10, is characterized in that, described in be configured to carry out based on CRS the quantity of the CRS port of the CSI process measured identical with the quantity of the CRS port that Physical Broadcast Channel PBCH uses.
12. channel condition information measurement mechanisms according to claim 10, is characterized in that, described reference signal resource comprises CSI-RS reference signal resource and/or CRS reference signal resource.
13. channel condition information measurement mechanisms according to claim 12, is characterized in that, reference signal resource comprise following one of at least:
The type of reference signal, the port number of reference signal, the sequence of reference signal, the pattern of reference signal.
14. channel condition information measurement mechanisms according to claim 10, it is characterized in that, according to channel status metrical information, when carrying out channel condition information measurement, described measurement module is used for, according to the measurement to the reference signal corresponding to each CSI process, calculating corresponding CSI respectively and reporting this CSI.
15. channel condition information measurement mechanisms according to claim 10, it is characterized in that, according to channel status metrical information, when carrying out channel condition information measurement, described measurement module is used for according to calculating CSI respectively to the measurement of the CSI-RS corresponding to each CSI process, and according to the CSI corresponding to the survey calculation of CRS, and report CSI.
16. according to claim 10 to the channel condition information measurement mechanism described in any one in 15, it is characterized in that, according to channel status metrical information, when carrying out channel condition information measurement, described measurement module is used for, according to the measurement to all available reference signal resources, calculating unified CSI and reporting this CSI.
17. channel condition information measurement mechanisms according to claims 14 or 15, is characterized in that, the mode that described CSI reports comprises and reports part CSI or report whole CSI.
18. channel condition information measurement mechanisms according to claim 17, it is characterized in that, when reporting described CSI, the CSI obtained based on CRS measurement if report and report the CSI obtained based on CSI-RS measurement to clash, then the information reporting priority sent through network side that receives in advance according to described receiver module of described measurement module, optionally reports corresponding CSI.
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| PCT/CN2015/072576 WO2015124070A1 (en) | 2014-02-21 | 2015-02-09 | Channel state information measurement method and device |
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| CN106470086A (en) * | 2015-08-14 | 2017-03-01 | 中国电信股份有限公司 | For the communication means of extensive antenna, base station and communication system |
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| CN108809503B (en) * | 2017-05-05 | 2023-10-20 | 华为技术有限公司 | Reference signal pattern transmission method and device |
| CN110535515A (en) * | 2019-04-30 | 2019-12-03 | 中兴通讯股份有限公司 | Channel measuring method and device |
| CN112019463A (en) * | 2020-09-04 | 2020-12-01 | 中兴通讯股份有限公司 | Channel state sending, receiving and signaling information transmission method, node and medium |
| CN117580064A (en) * | 2023-08-11 | 2024-02-20 | 中国电信股份有限公司技术创新中心 | Method, device, network equipment, terminal and medium for selecting reporting sub-configuration |
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| CN103825663A (en) | 2014-05-28 |
| TW201534072A (en) | 2015-09-01 |
| WO2015124070A1 (en) | 2015-08-27 |
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