CN103312434A - Processing method of channel state information (CSI), and base station and terminal - Google Patents
Processing method of channel state information (CSI), and base station and terminal Download PDFInfo
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- CN103312434A CN103312434A CN2012100617712A CN201210061771A CN103312434A CN 103312434 A CN103312434 A CN 103312434A CN 2012100617712 A CN2012100617712 A CN 2012100617712A CN 201210061771 A CN201210061771 A CN 201210061771A CN 103312434 A CN103312434 A CN 103312434A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0092—Indication of how the channel is divided
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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
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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Abstract
The invention provides a processing method of channel state information (CSI), a base station and a terminal. The method comprises the following steps: the base station configures a plurality of channel state information reference signal (CSI-RS) resource signalings of a terminal side through a UE-specific high level signaling, and sends the CSI-RS resource signalings to the terminal; the base station generates the CSI-RS according to the plurality of the CSI-RS resource signalings; and the base station sends the CSI-RS to the terminal in a corresponding time domain and frequency domain resource and receives the CSI or a reference signal received power (RSRP) which are fed back by the terminal. Each of the CSI-RS resource signalings at least comprises: antenna port number indication information, time domain and frequency domain position information of a CSI-RS resource in a subframe, period and subframe bias information of the CSI-RS resource subframe, power information of the CSI-RS resource, and information of bandwidth used by the CSI-RS resource. According to the invention, the UE is enabled to select accurately a transmission point (TP) in a condition of an unequal bandwidth and obtain the accurate CSI measurement in the coordinated multiple points (CoMP) technology.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of processing method, base station and terminal of channel condition information.
Background technology
The R11 technology is accurately studied again successively by Long Term Evolution (Long Term Evolution is called for short LTE) system after having experienced the several versions of R8/9/10.At present part R8 product begins progressively commercially, and R9 and R10 remain further product programming.
Experiencing R8 and R9 stage, R10 has increased again a lot of new characteristics on the above two basis, demodulated reference signal (Demodulation Reference Signal for example, DMRS), channel state information reference signals (Channel State Information Reference Signal, the pilot tone characteristic such as CSI-RS), the transmission such as 8 antenna supports and feedback characteristics etc., particularly presence of intercell interference is offset and is strengthened (ehanced Inter-Cell Interference Cancellin, eICIC) technology is further considered the interference avoidance technique between the residential quarter on the basis of having considered R8/9ICIC.Consider mainly that at the R10 initial stage in stage the area interference under the homogenous networks avoids for the technology that solves interference problem between the residential quarter, wherein the consideration eICIC technology of main flow and multipoint cooperative (Coordinated Multi-point, CoMP) technology.CoMP is as the term suggests be exactly that a plurality of node cooperations send data to one or more terminal (UE) at identical running time-frequency resource or different running time-frequency resources.Such technology can reduce the interference between the residential quarter, improves the throughput of cell edge, enlarges the residential quarter and covers.But introduced more scene owing to having considered heterogeneous network in the discussion later stage, the time restriction that the complexity of CoMP technology and R10 discuss, final decision is not introduced extra CoMP standardized content in the R10 stage, but the demand that can consider the CoMP part at design CSI-RS designs, so the CoMP technology is not just carried out further discussion after the 60bis meeting.
For R10, base station side is at first by special-purpose (UE-Specific) high-level signaling configuration UE one cover CSI-RS configuration information (comprising CSI-RS configuration information and the zero energy CSI-RS configuration information of non-zero power) of UE.UE utilizes the non-zero power CSI-RS of base station side configuration that serving BS is carried out CSI and measures.At first the UE side need to be known the antenna port number of CSI-RS, time domain and the frequency domain position of CSI-RS in a subframe, the power information of the cycle of CSI-RS and sub-frame offset information and CSI-RS.UE utilizes initial access and the residential quarter ID that obtains synchronously the time and detect Physical Broadcast Channel (Physical Broadcast Channel like this, PBCH) generate the CSI-RS pilot tone, recycling correlation detection principle demodulation CSI-RS, thereby obtain the CSI value, specifically can be with reference to 6.10.5 joint among third generation partner program (3GPP) LTE 36.211 about CSI-RS generation method related Sections.Wherein local residential quarter ID that the CSI-RS sequence need to utilize and the bandwidth information of generating of UE is not by the high-level signaling notice.
The CoMP transmission means mainly comprises joint transmission (Joint Transmission, JT), cooperative scheduling (Coordinated Scheduling, C S)/cooperative beam figuration (Coordinated Beamforming, CB).For JT, because different transmission node (Transmission Point, TP) jointly be a UE the transmission of data, at this moment UE need to feed back the CSI of a plurality of TP, so that base station side can utilize the CSI of UE feedback to decide which TP to be used for sending data to UE, and determine to send precoding weights and the Modulation and Coding Scheme (Modulation Coding Scheme, MCS) of data to this UE.For CS/CB, UE need to feed back the weights of a plurality of TP, thereby so that base station side can cooperate better, thereby utilize the CSI of UE feedback to decide cooperation precoding weights and the MCS value of service node and interfering nodes, and match user's selection machine precoding and the selection of MCS.For DPS, UE also needs to feed back the weights of a plurality of TP, thereby so that base station side can be utilized the CSI of a plurality of TP of UE feedback, dynamically determines the TP of this UE, and determines that this TP sends precoding weights and the MCS of data to this UE.If UE need to feed back the CSI of a plurality of TP, so just need base station side to configure the CSI that a plurality of CSI-RS resources are used for measuring a plurality of TP by the high-level signaling of UE-Specific high level to UE in advance, and need to comprise the needed information of various corresponding TP in the CSI-RS resource of configuration.
By the analysis to R10, be to obtain residential quarter ID and bandwidth information by high-level signaling, thus need to strengthen in the R11 stage, so that UE can obtain above two kinds of information.Pass through the discussion of 68 meetings, final decision residential quarter ID also adopted the mode of UE-Specific (UE is special-purpose) high-level signaling configuration, but bandwidth problem is discussed never, if so consider CoMP or Reference Signal Received Power (RSRP) measurement in the different-bandwidth situation, all can have problems.
Summary of the invention
The embodiment of the invention provides a kind of processing method, base station and terminal of channel condition information, the problem that exists to solve in different-bandwidth situation CoMP or RSRP measurement.
The embodiment of the invention provides the processing method of a kind of channel condition information (CSI), and the method comprises:
Terminal (UE) a plurality of channel state information reference signals of special-purpose high-level signaling configurating terminal side (CSI-RS) resource signaling is passed through in the base station, and sends described CSI-RS resource signaling to terminal; Wherein each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Described base station generates CSI-RS according to described a plurality of CSI-RS resource signalings, and sends described CSI-RS to described terminal on corresponding time domain and frequency domain resource, and the described CSI or the Reference Signal Received Power that receive described terminal feedback.
Preferably, time domain and the frequency domain position information separate configurations of each described CSI-RS resource in a subframe; Perhaps
The cycle of each described CSI-RS resource subframe and sub-frame offset information separate configurations; Perhaps
A plurality of described one cover cycles of CSI-RS resource sub-frame configuration and sub-frame offset information; Perhaps
Each described CSI-RS resource separate configurations power information; Perhaps
The different antennae port separate configurations power information of each described CSI-RS resource; Perhaps
The value of described antenna port number indication information is 1,2,4 or 8; Perhaps
The shared bandwidth information of described CSI-RS resource comprises 1.4M, 3M, 5M, 10M, 15M and 20M.
The embodiment of the invention also provides the processing method of a kind of channel condition information (CSI), and the method comprises:
Terminal receives a plurality of channel state information reference signals (CSI-RS) resource signaling that the base station sends; Wherein, each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Corresponding CSI or the Reference Signal Received Power (RSRP) of a plurality of CSI-RS resources that described terminal uses described a plurality of CSI-RS resource signaling to receive in accordingly time domain and frequency domain resource measurement, and to the described CSI of described base station feedback or described RSRP.
Preferably, described terminal uses described a plurality of CSI-RS resource signaling at corresponding CSI or the RSRP of a plurality of CSI-RS resources that accordingly time domain and frequency domain resource measurement receives, and comprising:
Described terminal generates CSI-RS according to described a plurality of CSI-RS resource signalings, and described CSI-RS is carried out related operation with a plurality of described CSI-RS resource that receives, and obtains a plurality of CSI-RS resources corresponding CSI or RSRP.
Preferably, time domain and the frequency domain position information separate configurations of each described CSI-RS resource in a subframe; Perhaps
The cycle of each described CSI-RS resource subframe and sub-frame offset information separate configurations; Perhaps
A plurality of described one cover cycles of CSI-RS resource sub-frame configuration and sub-frame offset information; Perhaps
Each described CSI-RS resource separate configurations power information; Perhaps
The different antennae port separate configurations power information of each described CSI-RS resource; Perhaps
The value of described antenna port number indication information is 1,2,4 or 8; Perhaps
The shared bandwidth information of described CSI-RS resource comprises 1.4M, 3M, 5M, 10M, 15M and 20M.
The embodiment of the invention also provides a kind of base station, and this base station comprises:
The configuration sending module is used for by terminal (UE) a plurality of channel state information reference signals of special-purpose high-level signaling configurating terminal side (CSI-RS) resource signaling, and sends described CSI-RS resource signaling to terminal; Wherein each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Processing module, be used for generating CSI-RS according to described a plurality of CSI-RS resource signalings of described configuration sending module configuration, and on corresponding time domain and frequency domain resource, send described CSI-RS to described terminal, and the described CSI or the Reference Signal Received Power that receive described terminal feedback.
Preferably, time domain and the frequency domain position information of each described CSI-RS resource in a subframe is separate configurations; Perhaps
Cycle and the sub-frame offset information of each described CSI-RS resource subframe are separate configurations; Perhaps
A plurality of described CSI-RS resource sub-frame configuration one cover cycle and sub-frame offset information; Perhaps
The power information of each described CSI-RS resource is separate configurations; Perhaps
The power information of the different antennae port of each described CSI-RS resource is separate configurations; Perhaps
The value of described antenna port number indication information is 1,2,4 or 8; Perhaps
The shared bandwidth information of described CSI-RS resource comprises 1.4M, 3M, 5M, 10M, 15M and 20M.
The embodiment of the invention also provides a kind of terminal, and this terminal comprises:
Receiver module is used for receiving a plurality of channel state information reference signals (CSI-RS) resource signaling that the base station sends; Wherein, each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Processing module, corresponding CSI or the Reference Signal Received Power (RSRP) of a plurality of CSI-RS resources that is used for using described a plurality of CSI-RS resource signalings that described receiver module receives to receive in corresponding time domain and frequency domain resource measurement, and to the described CSI of described base station feedback or described RSRP.
Preferably, described processing module, concrete being used for generates CSI-RS according to described a plurality of CSI-RS resource signalings, and described CSI-RS is carried out related operation with a plurality of described CSI-RS resource that receives, and obtains a plurality of CSI-RS resources corresponding CSI or RSRP.
Preferably, time domain and the frequency domain position information of each described CSI-RS resource in a subframe is separate configurations; Perhaps
Cycle and the sub-frame offset information of each described CSI-RS resource subframe are separate configurations; Perhaps
A plurality of described CSI-RS resource sub-frame configuration one cover cycle and sub-frame offset information; Perhaps
The power information of each described CSI-RS resource is separate configurations; Perhaps
The power information of the different antennae port of each described CSI-RS resource is separate configurations; Perhaps
The value of described antenna port number indication information is 1,2,4 or 8; Perhaps
The shared bandwidth information of described CSI-RS resource comprises 1.4M, 3M, 5M, 10M, 15M and 20M.
Accurately CSI measurement is selected and obtained to the processing method of above-mentioned channel condition information, base station and terminal so that UE can carry out TP exactly in a plurality of TP different-bandwidth situations in the CoMP technology.
Description of drawings
Fig. 1 is the flow chart of the processing method embodiment one of channel condition information of the present invention;
Fig. 2 is the flow chart of the processing method embodiment two of channel condition information of the present invention;
Fig. 3 is the structural representation of base station embodiment of the present invention;
Fig. 4 is the structural representation of terminal embodiment of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment among the application and the feature among the embodiment be combination in any mutually.
The embodiment of the invention provides the processing method of a kind of CS, accurately CSI measurement be selected and be obtained to base station side can so that UE carries out TP exactly in a plurality of TP different-bandwidth situations by a plurality of CSI-RS resource signalings of UE-Specific high-level signaling configurating terminal side in the CoMP technology.
As shown in Figure 1, be the flow chart of the processing method embodiment one of channel condition information of the present invention, this embodiment is described from base station side, and the method comprises:
Terminal (UE) a plurality of channel state information reference signals of special-purpose high-level signaling configurating terminal side (CSI-RS) resource signaling is passed through in step 101, base station, and sends described CSI-RS resource signaling to terminal; Wherein each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
As shown in Figure 2, be the flow chart of the processing method embodiment two of channel condition information of the present invention, this embodiment is described from end side, and the method comprises:
Corresponding CSI or the Reference Signal Received Power (RSRP) of a plurality of CSI-RS resources that step 202, described terminal use described a plurality of CSI-RS resource signaling to receive in accordingly time domain and frequency domain resource measurement, and to the described CSI of described base station feedback or described RSRP.
The below carries out mutual angle from base station side and end side the embodiment of the invention is described:
Embodiment one
Suppose that UE1 is the user of a R11, base station side is by a plurality of CSI-RS resource signalings of UE-Specific high-level signaling configurating terminal side, and wherein each CSI-RS resource signaling comprises: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource.And base station side is carried out generation and the transmission of CSI-RS according to information indicated in the above-mentioned CSI-RS resource signaling, is used for the CSI that the CSI-RS resource of each configuration was measured and fed back to the UE side.The UE side joint is received a plurality of CSI-RS resource signalings of base station configuration, and carrying out CSI-RS according to gained CSI-RS resource signaling generates, then carry out related operation with the CSI-RS resource that receives, thereby obtain CSI or the RSRP of each different CSI-RS resources, and feed back to the base station.Wherein, the value of above-mentioned antenna port number indication information can be 1,2,4 or 8.The shared bandwidth information of CSI-RS can comprise 1.4M, 3M, 5M, 10M, 15M and 20M.
Embodiment two
Suppose that UE1 is the user of a R11, base station side is by a plurality of CSI-RS resource signalings of UE-Specific high-level signaling configurating terminal side, wherein each CSI-RS resource signaling comprises: antenna port number indication information, time domain and the frequency domain position information of CSI-RS resource in a subframe, the power information of CSI-RS resource and the shared bandwidth information of CSI-RS resource; Base station side is also given cycle and the sub-frame offset signaling of a plurality of CSI-RS resource distribution one cover CSI-RS resource subframes in addition, and a plurality of CSI-RS resources are used identical a cover cycle and sub-frame offset signaling.And base station side is carried out generation and the transmission of CSI-RS according to information indicated in the signaling, is used for the CSI that the CSI-RS resource of each configuration was measured and fed back to the UE side.The UE side joint is received a plurality of CSI-RS resource signalings of base station configuration, and carrying out CSI-RS according to gained CSI-RS resource signaling generates, then carry out related operation with the CSI-RS resource that receives, thereby obtain CSI or the RSRP of each different CSI-RS resources, and feed back to the base station.Wherein, the value of above-mentioned antenna port number indication information can be 1,2,4 or 8.The shared bandwidth information of CSI-RS can comprise 1.4M, 3M, 5M, 10M, 15M and 20M.
Embodiment three
Suppose that UE1 is the user of a R11, base station side is by a plurality of CSI-RS resource signalings of UE-Specific high-level signaling configurating terminal side, and wherein each CSI-RS resource signaling comprises: antenna port number indication information, the CSI-RS resource time domain in a subframe and the power information of the different antennae port separate configurations of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, the shared bandwidth information of CSI-RS resource and CSI-RS resource.And base station side is carried out generation and the transmission of CSI-RS according to information indicated in the above-mentioned CSI-RS resource signaling, is used for the CSI that the CSI-RS resource of each configuration was measured and fed back to the UE side.The UE side joint is received a plurality of CSI-RS resource signalings of base station configuration, and carrying out CSI-RS according to gained CSI-RS resource signaling generates, then carry out related operation with the CSI-RS resource that receives, thereby obtain the CSI of each different CSI-RS resources, and feed back to the base station.Wherein, the value of above-mentioned antenna port number indication information can be 1,2,4 or 8.The shared bandwidth information of CSI-RS can comprise 1.4M, 3M, 5M, 10M, 15M and 20M.
Embodiment four
Suppose that UE1 is the user of a R11, base station side is by a plurality of CSI-RS resource signalings of UE-Specific high-level signaling configurating terminal side, and wherein each CSI-RS resource signaling comprises: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of the different antennae port separate configurations of frequency domain position information, CSI-RS resource.Base station side is also given cycle and the sub-frame offset signaling of a plurality of CSI-RS resource distribution one cover CSI-RS resource subframes in addition, and a plurality of CSI-RS resources are used identical a cover cycle and sub-frame offset signaling.And base station side is carried out generation and the transmission of CSI-RS according to information indicated in the above-mentioned CSI-RS resource signaling, is used for the CSI that the CSI-RS resource of each configuration was measured and fed back to the UE side.The UE side joint is received a plurality of CSI-RS resource signalings of base station configuration, and carrying out CSI-RS according to gained CSI-RS resource signaling generates, then carry out related operation with the CSI-RS resource that receives, thus obtain each different CSI-RS resources or RSRP, and feed back to the base station.Wherein, the value of above-mentioned antenna port number indication information can be 1,2,4 or 8.The shared bandwidth information of CSI-RS can comprise 1.4M, 3M, 5M, 10M, 15M and 20M.
Can find out the use said method from top embodiment, can select and in the CoMP technology, obtain accurately CSI measurement so that UE carries out TP exactly in a plurality of TP different-bandwidth situations.
As shown in Figure 3, be the structural representation of base station embodiment of the present invention, this base station comprises configuration sending module 31 and processing module 32, wherein:
The configuration sending module is used for by terminal (UE) a plurality of channel state information reference signals of special-purpose high-level signaling configurating terminal side (CSI-RS) resource signaling, and sends described CSI-RS resource signaling to terminal; Wherein each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Processing module, be used for generating CSI-RS according to described a plurality of CSI-RS resource signalings of described configuration sending module configuration, and on corresponding time domain and frequency domain resource, send described CSI-RS to described terminal, and the described CSI or the Reference Signal Received Power that receive described terminal feedback.
Wherein, time domain and the frequency domain position information of each described CSI-RS resource in a subframe can be separate configurations; The cycle of each described CSI-RS resource subframe and sub-frame offset information can be separate configurations; A plurality of described CSI-RS resource subframes can be to have configured a cover cycle and sub-frame offset information; The power information of each described CSI-RS resource can be separate configurations; Perhaps, the power information of the different antennae port of each described CSI-RS resource can be separate configurations.
Preferably, the value of described antenna port number indication information can be 1,2,4 or 8; The shared bandwidth information of described CSI-RS resource can comprise 1.4M, 3M, 5M, 10M, 15M and 20M.
Above-mentioned base station sends the CSI-RS resource signaling of configuration to terminal by the special-purpose high-level signaling of UE, select and obtain accurately CSI measurement in the CoMP technology to lay a good foundation for UE can carry out TP exactly in a plurality of TP different-bandwidth situations.
As shown in Figure 4, be the structural representation of terminal embodiment of the present invention, this terminal comprises receiver module 41 and processing module 42, wherein:
Receiver module is used for receiving a plurality of channel state information reference signals (CSI-RS) resource signaling that the base station sends; Wherein, each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Processing module, corresponding CSI or the RSRP of a plurality of CSI-RS resources that is used for using described a plurality of CSI-RS resource signalings that described receiver module receives to receive in corresponding time domain and frequency domain resource measurement, and to the described CSI of described base station feedback or described RSRP.
Wherein, described processing module, concrete being used for generates CSI-RS according to described a plurality of CSI-RS resource signalings, and described CSI-RS is carried out related operation with a plurality of described CSI-RS resource that receives, and obtains a plurality of CSI-RS resources corresponding CSI or RSRP.
In addition, time domain and the frequency domain position information of each described CSI-RS resource in a subframe can be separate configurations; The cycle of each described CSI-RS resource subframe and sub-frame offset information can be separate configurations; A plurality of described CSI-RS resource subframes can be to have configured a cover cycle and sub-frame offset information; The power information of each described CSI-RS resource can be separate configurations; Perhaps, the power information of the different antennae port of each described CSI-RS resource can be separate configurations.
Preferably, the value of described antenna port number indication information can be 1,2,4 or 8; The shared bandwidth information of described CSI-RS resource can comprise 1.4M, 3M, 5M, 10M, 15M and 20M.
The CSI-RS resource signaling that above-mentioned UE sends by receiving base station side, and use this CSI-RS resource signaling to obtain CSI corresponding to a plurality of CSI-RS resources that receives, thereby so that can carrying out TP exactly in a plurality of TP different-bandwidth situations, UE selects and in the CoMP technology, obtains accurately CSI measurement.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, said procedure can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is had been described in detail.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. the processing method of a channel condition information (CSI) is characterized in that, the method comprises:
Terminal (UE) a plurality of channel state information reference signals of special-purpose high-level signaling configurating terminal side (CSI-RS) resource signaling is passed through in the base station, and sends described CSI-RS resource signaling to terminal; Wherein each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Described base station generates CSI-RS according to described a plurality of CSI-RS resource signalings, and sends described CSI-RS to described terminal on corresponding time domain and frequency domain resource, and the described CSI or the Reference Signal Received Power that receive described terminal feedback.
2. method according to claim 1 is characterized in that:
Time domain and the frequency domain position information separate configurations of each described CSI-RS resource in a subframe; Perhaps
The cycle of each described CSI-RS resource subframe and sub-frame offset information separate configurations; Perhaps
A plurality of described one cover cycles of CSI-RS resource sub-frame configuration and sub-frame offset information; Perhaps
Each described CSI-RS resource separate configurations power information; Perhaps
The different antennae port separate configurations power information of each described CSI-RS resource; Perhaps
The value of described antenna port number indication information is 1,2,4 or 8; Perhaps
The shared bandwidth information of described CSI-RS resource comprises 1.4M, 3M, 5M, 10M, 15M and 20M.
3. the processing method of a channel condition information (CSI) is characterized in that, the method comprises:
Terminal receives a plurality of channel state information reference signals (CSI-RS) resource signaling that the base station sends; Wherein, each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Corresponding CSI or the Reference Signal Received Power (RSRP) of a plurality of CSI-RS resources that described terminal uses described a plurality of CSI-RS resource signaling to receive in accordingly time domain and frequency domain resource measurement, and to the described CSI of described base station feedback or described RSRP.
4. method according to claim 3 is characterized in that:
Described terminal uses described a plurality of CSI-RS resource signaling at corresponding CSI or the RSRP of a plurality of CSI-RS resources that accordingly time domain and frequency domain resource measurement receives, and comprising:
Described terminal generates CSI-RS according to described a plurality of CSI-RS resource signalings, and described CSI-RS is carried out related operation with a plurality of described CSI-RS resource that receives, and obtains a plurality of CSI-RS resources corresponding CSI or RSRP.
5. it is characterized in that according to claim 3 or 4 described methods:
Time domain and the frequency domain position information separate configurations of each described CSI-RS resource in a subframe; Perhaps
The cycle of each described CSI-RS resource subframe and sub-frame offset information separate configurations; Perhaps
A plurality of described one cover cycles of CSI-RS resource sub-frame configuration and sub-frame offset information; Perhaps
Each described CSI-RS resource separate configurations power information; Perhaps
The different antennae port separate configurations power information of each described CSI-RS resource; Perhaps
The value of described antenna port number indication information is 1,2,4 or 8; Perhaps
The shared bandwidth information of described CSI-RS resource comprises 1.4M, 3M, 5M, 10M, 15M and 20M.
6. a base station is characterized in that, this base station comprises:
The configuration sending module is used for by terminal (UE) a plurality of channel state information reference signals of special-purpose high-level signaling configurating terminal side (CSI-RS) resource signaling, and sends described CSI-RS resource signaling to terminal; Wherein each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Processing module, be used for generating CSI-RS according to described a plurality of CSI-RS resource signalings of described configuration sending module configuration, and on corresponding time domain and frequency domain resource, send described CSI-RS to described terminal, and the described CSI or the Reference Signal Received Power that receive described terminal feedback.
7. base station according to claim 6 is characterized in that:
Time domain and the frequency domain position information of each described CSI-RS resource in a subframe is separate configurations; Perhaps
Cycle and the sub-frame offset information of each described CSI-RS resource subframe are separate configurations; Perhaps
A plurality of described CSI-RS resource sub-frame configuration one cover cycle and sub-frame offset information; Perhaps
The power information of each described CSI-RS resource is separate configurations; Perhaps
The power information of the different antennae port of each described CSI-RS resource is separate configurations; Perhaps
The value of described antenna port number indication information is 1,2,4 or 8; Perhaps
The shared bandwidth information of described CSI-RS resource comprises 1.4M, 3M, 5M, 10M, 15M and 20M.
8. a terminal is characterized in that, this terminal comprises:
Receiver module is used for receiving a plurality of channel state information reference signals (CSI-RS) resource signaling that the base station sends; Wherein, each CSI-RS resource signaling all comprises at least: antenna port number indication information, the CSI-RS resource time domain in a subframe and power information and the shared bandwidth information of CSI-RS resource of cycle of frequency domain position information, CSI-RS resource subframe and sub-frame offset information, CSI-RS resource;
Processing module, corresponding CSI or the Reference Signal Received Power (RSRP) of a plurality of CSI-RS resources that is used for using described a plurality of CSI-RS resource signalings that described receiver module receives to receive in corresponding time domain and frequency domain resource measurement, and to the described CSI of described base station feedback or described RSRP.
9. terminal according to claim 8 is characterized in that:
Described processing module, concrete being used for generates CSI-RS according to described a plurality of CSI-RS resource signalings, and described CSI-RS is carried out related operation with a plurality of described CSI-RS resource that receives, and obtains a plurality of CSI-RS resources corresponding CSI or RSRP.
10. terminal according to claim 9 is characterized in that:
Time domain and the frequency domain position information of each described CSI-RS resource in a subframe is separate configurations; Perhaps
Cycle and the sub-frame offset information of each described CSI-RS resource subframe are separate configurations; Perhaps
A plurality of described CSI-RS resource sub-frame configuration one cover cycle and sub-frame offset information; Perhaps
The power information of each described CSI-RS resource is separate configurations; Perhaps
The power information of the different antennae port of each described CSI-RS resource is separate configurations; Perhaps
The value of described antenna port number indication information is 1,2,4 or 8; Perhaps
The shared bandwidth information of described CSI-RS resource comprises 1.4M, 3M, 5M, 10M, 15M and 20M.
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| CN2012100617712A CN103312434A (en) | 2012-03-09 | 2012-03-09 | Processing method of channel state information (CSI), and base station and terminal |
| PCT/CN2012/087701 WO2013131401A1 (en) | 2012-03-09 | 2012-12-27 | Channel state information processing method, base station and user equipment |
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| CN2012100617712A CN103312434A (en) | 2012-03-09 | 2012-03-09 | Processing method of channel state information (CSI), and base station and terminal |
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