CN105471544A - Channel quality/state indication information processing method, channel quality/state indication information processing device, terminal and base station - Google Patents
Channel quality/state indication information processing method, channel quality/state indication information processing device, terminal and base station Download PDFInfo
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- CN105471544A CN105471544A CN201410391009.XA CN201410391009A CN105471544A CN 105471544 A CN105471544 A CN 105471544A CN 201410391009 A CN201410391009 A CN 201410391009A CN 105471544 A CN105471544 A CN 105471544A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
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Abstract
The invention provides a channel quality/state indication information processing method, a channel quality/state indication information processing device, a terminal and a base station, wherein the channel quality/state indication information processing method comprises the steps of receiving a measuring signal; determining channel quality/state indication information according to the measuring signal in at least one manner selected from the following manners: determining the channel quality/state indication information through receiving measuring signals on a same subframe or different subframes according to one receiving method or different receiving methods, determining the channel quality/state indication information according to different interference theories and measuring signals, and determining the channel quality/state indication information according to a channel state information (CSI) process index and the measuring signal; and transmitting the determined channel quality/state indication information to the base station. The channel quality/state indication information processing method settles a problem of link self-adaption mismatch when a receiving end utilizes a high-grade receiver, and furthermore effectively settles the problem of link self-adaption mismatch caused by utilization of different receivers, thereby effectively improving network spectral efficiency.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of channel quality/status indication information processing method, device, terminal and base station.
Background technology
Presence of intercell interference is an intrinsic problem of cell mobile communication systems, Fig. 1 is the schematic diagram that in correlation technique, target terminal is subject to adjacent cell interference, for presence of intercell interference, traditional solution adopts channeling, by allowing neighbor cell use different carrier frequency, avoid the interference problem between neighbor cell.At OFDM (OrthogonalFrequencyDivisionMultiplexing, referred to as OFDM) in system, frequency reuse is 1, and namely neighbor cell uses identical carrier frequency, and the problem of inter-cell interference brought also can be more complicated than traditional frequency reuse system.Long Term Evolution (LongTermEvolution, referred to as LTE) be system based on OFDM technology, the randomization of main employing presence of intercell interference, interference are avoided solving interference problem with coordination technique, by the mode such as precoding, cooperative scheduling of network side, realize avoiding of interference at transmitter side.But the interference based on transmit leg cooperates, depend on the accuracy of the channel condition information (ChannelStateInformation, referred to as CSI) of feedback to a great extent.By the restriction of feedback signaling overhead and the impact of feedback processing time delay, the delay problem of back haul link also can affect the effect of minizone cooperation greatly simultaneously, current LTE system can not solve interference problem completely based on the method for transmit leg interference cooperation, how effectively eliminating and to suppress the interference between minizone and user, is the follow-up important directions effectively improving spectrum efficiency further.
In LTE system, employing be that public reference signal (CommonReferenceSignal, referred to as CRS) carries out pilot measurement and data demodulates, namely all users use CRS to carry out channel estimating.Adopt concrete pre-coding matrix (also can the be called precoding weights) information used when needing transmitting terminal additional notifications receiving terminal data to send during the precoding processing mode based on CRS, and the expense of pilot tone is larger.In addition in multi-user's multiple-input and multiple-output (Multi-userMulti-inputMulti-output, referred to as MU-MIMO) system, because multiple terminal uses identical CRS, the orthogonal of pilot tone cannot be realized, be therefore unable to estimate interference.
Long Term Evolution (the AdvancedLongTermEvolution strengthened, referred to as LTE-A) in system, in order to reduce pilot-frequency expense and improve channel estimation accuracy, pilot measurement and data demodulates function are separated, respectively define two class reference signals: demodulated reference signal (DemodulationReferenceSignal, referred to as DMRS) and channel state information reference signals (ChannelStateInformationReferencedSignal, referred to as CSI-RS).Wherein CSI-RS is mainly used in channel measurement to obtain channel quality information (ChannelQuaulityInformation, referred to as CQI) and feed back, make base station side that this information completing user can be utilized to dispatch and realize modulation coding mode (ModulationandCodingScheme, referred to as MCS) self-adjusted block, do not carry precoding information in the transmission of CSI-RS; And DMRS is mainly used in Physical Downlink Shared Channel (PhysicalDownlinkSharedChannel, referred to as PDSCH) and strengthen Physical Downlink Control Channel (enhancedPhysicalDownlinkControlChannel, referred to as ePDCCH) channel estimating to complete the demodulation of data/control channel, the transmission of DMRS carries the precoding information of corresponding PDSCH/ePDCCH.LTE and lte-a system can be divided into Frequency Division Duplexing (FDD) (FrequencyDivisionDuplex according to the difference of up-downgoing duplex mode, referred to as FDD) and time division duplex (TimeDivisionDuplex, referred to as TDD) system, the pattern of CSI-RS and DMRS of FDD and TDD system can difference to some extent.
In the senior receiver research of receiving terminal, senior receiver mainly can be divided into several types: enhancement mode least mean-square error-AF panel combines (Ehanced-MinimumMeanSquareError-InterferenceRejectionComb ining, referred to as E-LMMSE-IRC) receiver, interference eliminate (InterferenceCancellation, referred to as IC) receiver, maximum likelihood (MaximumLikelihood, referred to as ML) receiver.For E-MMSE-IRC receiver (being assumed to be DMRS-based), network side needs the initiation parameter (comprising scrambler ID, virtual subdistrict ID, physical district ID etc.) providing the interference DMRS port information that UE uses, DMRS to object UE, for IC and ML receiver, network side, except providing the above-mentioned information required by MMSE-IRC, also needs the modulation system or the MCS information that provide interference source.
At long evolving system (LongTermEvolution, referred to as LTE) and (LongTermEvolutionAdvanced, referred to as LTE-A) in system, link circuit self-adapting have employed the method that the link circuit self-adapting of inner ring and outer loop self-adaptive combine.First the link circuit self-adapting (InnerLoopLinkAdaptation, referred to as ILLA) of inner ring is responsible for UE and selects suitable MCS.This selection is based on the signal of measurement and the mapping relations between the ratio (SINR) of interference plus noise and the most suitable MCS distributed.Due to various reason ILLA but not always adaptive channel (such as channel becomes soon) well, therefore outer shroud link self adaptation (OuterLoopLinkAdaptation, referred to as OLLA) function is also necessary.The target of OLLA selects to reach target Block Error Rate BLER by adjustment MCS, such as target BLER=0.1 in LTE, current BLER can be determined by the HARQ-ACK of statistics UE feedback in base station, is in this way the HARQ-ACK feedback information transmitted first based on mixed automatic retransfer (HARQ).
In LTE and LTE-A, the up control signal of transmission that needs has correct/error response message (Acknowledgement/NegativeAcknowledgement, referred to as ACK/NACK), and reflection down physical channel state information (ChannelStateInformation, referred to as CSI) three kinds of forms: channel quality instruction (Channelsqualityindication, referred to as CQI), pre-coding matrix instruction (Pre-codingMatrixIndicator, referred to as PMI), order instruction (RankIndicator, referred to as RI).
Channel quality instruction (CQI) plays a part key in link circuit self-adapting process, and this is one and is sent to the message of eNodeB by UE, for describing the downlink channel quality of current UE.UE can measure the reference symbol that base station sends, then by calculating CQI.
CQI is used to the index weighing down channel quality quality.In 36-213 agreement CQI with 0 ~ 15 integer value represent, represent different CQI grades respectively, different CQI correspond to respective MCS, in table 1.The selection of CQI grade should follow following criterion:
Selected CQI grade, should make the Block Error Rate of PDSCH transmission block under corresponding MCS corresponding to this CQI be no more than 0.1.
Based on the unrestricted assay intervals of in frequency-domain and time-domain, UE will obtain the highest CQI value, corresponding to each maximum CQI value sent in sub-frame of uplink n, the serial number range of CQI is 1-15, and meet following condition, if CQI sequence number 1 does not meet this condition, CQI sequence number is 0: single PDSCH transmission block error rate BLER when received is no more than 0.1, PDSCH transmission block comprises united information: modulation system and transmission block size, its one group of downlink physical Resource Block corresponding to a CQI sequence number and take, i.e. CQI reference resources.Wherein, this highest CQI value refers to, the maximum CQI value when ensureing that BLER is not more than 0.1, is conducive to controlling Resourse Distribute.In general, CQI value is less, and the resource taken is more, and BLER performance is better.Wherein, BLER is the error rate of transmission block, and BLER equals the total TB number of TB divided by transmission of correct transmission;
Corresponding to a CQI sequence number, there is transmission block size and modulation system united information, if: according to associated transport block size, in CQI reference resources, these united informations of PDSCH transmission can with signaling, in addition:
Modulation scheme CQI sequence number is carried out characterizing and is used in the united information comprising transmission block size and modulation scheme in reference resources, the efficient channel code rate that it produces is the close efficient channel code rate of the most probable that can be characterized by CQI sequence number.When there is this united information of more than one, when they can produce the efficient channel code rate characterized by CQI sequence number close equally, then adopt the united information with minimum transfer block size.
Each CQI sequence number is corresponding a kind of modulation system and transmission block size, the corresponding relation of transmission block size and NPRB is in table 1.According to the large I calculation code speed of transmission block size and NPRB.
Table 1:4 bit CQI form
In the research of current senior receiver, receiving terminal only uses senior receiver to carry out demodulation when demodulation target data, and use traditional receiver when measure channel quality calculates CQI, such as, maximum-ratio combing receiver, the receiver that least mean-square error-AF panel combines, zero-forcing receiver etc., therefore, the CQI of receiving terminal feedback is not the highest CQI when ensureing that BLER is 0.1, thus cause link circuit self-adapting mismatch, namely OLLA is used to carry out outer shroud adjustment, but because regulating the speed of OLLA is very slow, also be the problem that cannot solve link circuit self-adapting mismatch well.
Therefore, in the related, when receiving terminal uses the problem that there is link circuit self-adapting mismatch during senior receiver.
Summary of the invention
The invention provides a kind of channel quality/status indication information processing method, device, terminal and base station, at least to solve in correlation technique, when receiving terminal uses the problem that there is link circuit self-adapting mismatch during senior receiver.
According to an aspect of the present invention, provide a kind of channel quality/status indication information processing method, comprising: receive measuring-signal; In the following manner one of at least, according to described measuring-signal determination channel quality/status indication information: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal; Described channel quality/the status indication information determined is sent to base station.
Preferably, described method of reseptance comprise following one of at least: use interference to eliminate/suppress, do not use interference to eliminate/suppress.
Preferably, described measuring-signal comprise following one of at least: public reference signal, channel state information reference signals, interferometry resource signal, Data Shared Channel signal.
Preferably, described different subframe comprises: two kinds of CSI subframe collection.
Preferably, described two kinds of CSI subframe collection comprise: have the subframe collection of almost empty subframe ABS configuration information and do not have the subframe collection of ABS configuration information.
Preferably, according to described measuring-signal determination channel quality/status indication information comprise following one of at least: in the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress; In the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress; In the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress; In the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress.
Preferably, described interference hypothesis comprise following one of at least: there is the interference in the community of multiuser multiplexing; There is the interference of the minizone of multiuser multiplexing; There is not the interference in the community of multiuser multiplexing; There is not the interference of the minizone of multiuser multiplexing.
Preferably, described interference hypothesis comprise following one of at least: interference is modulated based on QPSK, interference is modulated based on 16QAM, interference is modulated based on 64QAM, interference is modulated based on 256QAM, interference is the transmission mode based on demodulated reference signal, and interference is the transmission mode based on public reference signal.
Preferably, according to described measuring-signal determination channel quality/status indication information comprise following one of at least: when transmission mode is configured to transmission mode 10, determine multiple channel quality/status indication information by the configuration information of multiple channel condition information process or index; When transmission mode is configured to the wherein a kind of pattern in the middle of transmission mode 1 to transmission mode 9, the subframe of CSI subframe collection 0 is determined the first channel quality/status indication information, the subframe of CSI subframe collection 1 is determined the second channel quality/status indication information.
According to a further aspect in the invention, provide a kind of channel quality/status indication information processing method, comprise: channel quality/status indication information that receiving terminal sends, wherein, described channel quality/status indication information by described terminal in the following manner one of at least, is determined according to described measuring-signal: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal; According to the modulation coding mode of described channel quality/status indication information determination data; The described modulation coding mode determined is sent to described terminal.
According to also one side of the present invention, provide a kind of channel quality/status indication information processing unit, comprising: the first receiver module, for receiving measuring-signal; First determination module, for in the following manner one of at least, according to described measuring-signal determination channel quality/status indication information: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal; First sending module, for sending to base station by the described channel quality/status indication information determined.
Preferably, described first determination module comprise following one of at least: the first determining unit, for the subframe at CSI subframe collection 0, the described measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress; Second determining unit, for the subframe at CSI subframe collection 0, the described measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress; 3rd determining unit, in the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress; 4th determining unit, for the subframe at CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress.
Preferably, described first determination module comprise following one of at least: the 5th determining unit, for when transmission mode is configured to transmission mode 10, determine multiple channel quality/status indication information by the configuration information of multiple channel condition information process or index; 6th determining unit, during for being configured to the wherein a kind of pattern in the middle of transmission mode 1 to transmission mode 9 when transmission mode, the subframe of CSI subframe collection 0 is determined the first channel quality/status indication information, the subframe of CSI subframe collection 1 is determined the second channel quality/status indication information.
According to also one side of the present invention, provide a kind of terminal, it is characterized in that, comprise the device described in above-mentioned any one.
In accordance with a further aspect of the present invention, provide a kind of channel quality/status indication information processing unit, comprise: the second receiver module, for channel quality/status indication information that receiving terminal sends, wherein, described channel quality/status indication information by described terminal in the following manner one of at least, is determined according to described measuring-signal: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal; Second determination module, for the modulation coding mode according to described channel quality/status indication information determination data; Second sending module, for sending to described terminal by the described modulation coding mode determined.
According to another aspect of the invention, provide a kind of base station, comprise device described above.
By the present invention, adopt and receive measuring-signal; In the following manner one of at least, according to described measuring-signal determination channel quality/status indication information: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal; Described channel quality/the status indication information determined is sent to base station, solve in correlation technique, when receiving terminal uses the problem that there is link circuit self-adapting mismatch during senior receiver, and then the problem of the link circuit self-adapting mismatch reaching effective solution different receiver of use and bring, effectively promote the effect of network spectrum efficiency.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that in correlation technique, target terminal is subject to adjacent cell interference;
Fig. 2 is the flow chart of the channel quality/status indication information processing method according to the embodiment of the present invention;
Fig. 3 is the flow chart of the channel quality/status indication information processing method according to the embodiment of the present invention;
Fig. 4 is the structured flowchart of the channel quality/status indication information processing unit one according to the embodiment of the present invention;
Fig. 5 is the preferred structure block diagram one of the first determination module 44 in the channel quality/status indication information processing unit one according to the embodiment of the present invention;
Fig. 6 is the preferred structure block diagram two of the first determination module 44 in the channel quality/status indication information processing unit one according to the embodiment of the present invention;
Fig. 7 is the structured flowchart of the terminal according to the embodiment of the present invention;
Fig. 8 is the structured flowchart of the channel quality/status indication information processing unit two according to the embodiment of the present invention;
Fig. 9 is the structured flowchart of the base station according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Provide a kind of channel quality/status indication information processing method in the present embodiment, Fig. 2 is the flow chart of the channel quality/status indication information processing method according to the embodiment of the present invention, and as shown in Figure 2, this flow process comprises the steps:
Step S202, receive measuring-signal, wherein, this measuring-signal can comprise multiple, such as, can comprise following one of at least: public reference signal, channel state information reference signals, interferometry resource signal, Data Shared Channel signal;
Step S204, in the following manner one of at least, according to measuring-signal determination channel quality/status indication information: foundation one or method of reseptance are (such as, can one or more receivers be corresponded to) receive measuring-signal determination channel quality/status indication information in identical or different subframe, wherein, this method of reseptance can comprise multiple, such as, can comprise following one of at least: use interference to eliminate/suppress, do not use interference to eliminate/suppress; According to different interference hypothesis and measuring-signal determination channel quality/status indication information, wherein, this different subframe also can be multiple, such as, can be two kinds of channel condition information (ChannelStateInformation, referred to as CSI) subframe collection, illustrate below: the subframe of subframe collection CSI0, the subframe of CSI subframe collection 1, there is the subframe collection of almost empty subframe (AlmostBlankSubframe, referred to as ABS) configuration information, not there is the subframe collection of ABS configuration information; This channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal;
Step S106, sends to base station by the channel quality/status indication information determined.
Pass through above-mentioned steps, user terminal is by the multiple channel quality/status indication information of feedback, solve in correlation technique, when receiving terminal uses the problem that there is link circuit self-adapting mismatch during senior receiver, and then the problem of the link circuit self-adapting mismatch reaching effective solution different receiver of use and bring, effectively promote the effect of network spectrum efficiency.
Various ways can be adopted according to measuring-signal determination channel quality/status indication information, illustrate below, such as, can adopt following one of at least: such as, in the subframe of CSI subframe collection 0, the measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, and the measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress; Again such as, in the subframe of CSI subframe collection 0, the measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress; Also such as, in the subframe of CSI subframe collection 0, the measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress; Also such as, in the subframe of CSI subframe collection 0, the measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress.
Wherein, above-mentioned interference hypothesis also can be various ways, such as, can be the interference existed in the community of multiuser multiplexing; There is the interference of the minizone of multiuser multiplexing; Also can be the interference do not existed in the community of multiuser multiplexing; It can also be the interference of the minizone that there is not multiuser multiplexing; Interference is modulated based on QPSK; Interference is modulated based on 16QAM; Interference is modulated based on 64QAM; Interference is modulated based on 256QAM; Interference is the transmission mode based on demodulated reference signal; Interference is the transmission mode based on public reference signal.
In addition, during according to measuring-signal determination channel quality/status indication information, according to the difference of transmission mode, also various ways can be adopted, such as, when transmission mode is configured to transmission mode 10, determine multiple channel quality/status indication information by the configuration information of multiple channel condition information process or index; Again such as, when transmission mode is configured to the wherein a kind of pattern in the middle of transmission mode 1 to transmission mode 9, the subframe of CSI subframe collection 0 is determined the first channel quality/status indication information, the subframe of CSI subframe collection 1 is determined the second channel quality/status indication information;
Fig. 3 is the flow chart of the channel quality/status indication information processing method according to the embodiment of the present invention, and as shown in Figure 3, this flow process comprises the steps:
Step S302, channel quality/status indication information that receiving terminal sends, wherein, channel quality/status indication information by terminal in the following manner one of at least, is determined according to measuring-signal: receive the measuring-signal determination channel quality/status indication information in identical or different subframe according to one or more method of reseptances; According to different interference hypothesis and measuring-signal determination channel quality/status indication information; According to channel condition information CSI process index and described measuring-signal determination channel quality/status indication information;
Step S304, according to the modulation coding mode of channel quality/status indication information determination data;
Step S306, sends to terminal by the modulation coding mode determined.
Pass through above-mentioned steps, user terminal is by the multiple channel quality/status indication information of feedback, solve in correlation technique, when receiving terminal uses the problem that there is link circuit self-adapting mismatch during senior receiver, and then the problem of the link circuit self-adapting mismatch reaching effective solution different receiver of use and bring, effectively promote the effect of network spectrum efficiency.
Additionally provide a kind of channel quality/status indication information processing unit in the present embodiment, this device is used for realizing above-described embodiment and preferred implementation, has carried out repeating no more of explanation.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.
Fig. 4 is the structured flowchart of the channel quality/status indication information processing unit one according to the embodiment of the present invention, and as shown in Figure 4, this device comprises the first receiver module 42, first determination module 44 and the first sending module 46, is described below to this device.
First receiver module 42, for receiving measuring-signal; First determination module 44, be connected to above-mentioned first receiver module 42, for in the following manner one of at least, according to measuring-signal determination channel quality/status indication information: receive the measuring-signal determination channel quality/status indication information in identical or different subframe according to one or more method of reseptances; According to different interference hypothesis and measuring-signal determination channel quality/status indication information; According to channel condition information CSI process index and measuring-signal determination channel quality/status indication information; First sending module 46, is connected to above-mentioned first determination module 44, for the channel quality/status indication information determined is sent to base station.
Fig. 5 is the preferred structure block diagram one of the first determination module 44 in the channel quality/status indication information processing unit one according to the embodiment of the present invention, as shown in Figure 5, this first determination module 44 comprise following one of at least: the first determining unit 52, second determining unit 54, the 3rd determining unit 56, the 4th determining unit 58, be described this first determination module 44 below.
First determining unit 52, for the subframe at CSI subframe collection 0, the measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 0, the measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress; Second determining unit 54, for the subframe at CSI subframe collection 0, the measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 0, the measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress; 3rd determining unit 56, in the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress; 3rd determining unit 58, for the subframe at CSI subframe collection 0, the measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 0, the measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress.
Fig. 6 is the preferred structure block diagram two of the first determination module 44 in the channel quality/status indication information processing unit one according to the embodiment of the present invention, as shown in Figure 6, this first determination module 44 comprise following one of at least: the 5th determining unit 62, the 6th determining unit 64, be described this first determination module 44 below.
5th determining unit 62, for when transmission mode is configured to transmission mode 10, determines multiple channel quality/status indication information by the configuration information of multiple channel condition information process or index; 6th determining unit 64, during for being configured to the wherein a kind of pattern in the middle of transmission mode 1 to transmission mode 9 when transmission mode, the subframe of CSI subframe collection 0 is determined the first channel quality/status indication information, the subframe of CSI subframe collection 1 is determined the second channel quality/status indication information.
Fig. 7 is the structured flowchart of the terminal according to the embodiment of the present invention, and as shown in Figure 7, this terminal 70 comprises the channel quality/status indication information processing unit 1 of above-mentioned any one.
Fig. 8 is the structured flowchart of the channel quality/status indication information processing unit two according to the embodiment of the present invention, and as shown in Figure 8, this device comprises the second receiver module 82, second determination module 84 and the second sending module 86, is described below to this device.
Second receiver module 82, for channel quality/status indication information that receiving terminal sends, wherein, channel quality/status indication information by terminal in the following manner one of at least, is determined according to measuring-signal: receive the measuring-signal determination channel quality/status indication information in identical or different subframe according to one or more method of reseptances; According to different interference hypothesis and measuring-signal determination channel quality/status indication information; According to channel condition information CSI process index and measuring-signal determination channel quality/status indication information; Second determination module 84, is connected to above-mentioned second receiver module 82, for the modulation coding mode according to channel quality/status indication information determination data; Second sending module 86, is connected to above-mentioned second determination module 84, for the modulation coding mode determined is sent to terminal.
Fig. 9 is the structured flowchart of the base station according to the embodiment of the present invention, and as shown in Figure 9, this base station 90 comprises the channel quality/status indication information processing unit 2 92 of above-mentioned any one.
For the problems referred to above in correlation technique, in the present embodiment, provide a kind of processing scheme of feedback information, the program can solve the problem of the link circuit self-adapting mismatch existed when receiving terminal use senior receiver.The program is applied to terminal, comprising: terminal receives measuring-signal, according to this measuring-signal determination channel quality/status indication information; Wherein, this terminal uses one or more method of reseptances measuring-signal received in identical subframe or different subframe to determine multiple channel quality/status indication information respectively, or terminal determines multiple channel quality/status indication information based on the measuring-signal in different subframe, or terminal determines multiple channel quality/status indication information based on multiple different interference hypothesis; Wherein, this measuring-signal comprise following one of at least: public reference signal, channel state information reference signals, interferometry resource signal, Data Shared Channel signal;
Channel quality/status indication information is sent to base station by terminal.
Wherein, the receiver of above-mentioned indication comprises multiple method of reseptance, such as, can be use interference eliminate/suppress, also can be do not use interference eliminate/suppress.
Terminal determines multiple channel quality/status indication information based on the signal in different subframe, wherein, this different subframe also can be various ways, such as, comprise the subframe of CSI subframe collection 0, CSI subframe collection 1 subframe, there is the subframe of almost empty subframe ABS configuration information, not there is the subframe of ABS configuration information.
Terminal determines multiple channel quality/status indication information based on multiple different interference hypothesis, wherein, this interference hypothesis also can comprise polytype, such as, can comprise following one of at least: exist in multiuser multiplexing or community or the interference of minizone, do not exist in multiuser multiplexing or community or the interference of minizone, wherein, interference can based on Different Modulations, such as, can be modulate based on QPSK, also can be modulate based on 16QAM, also can be modulate based on 64QAM, can also be modulate based on 256QAM, in addition, interference can be the transmission mode based on demodulated reference signal, also can be the transmission mode based on public reference signal.
In addition, terminal determines that a kind of channel quality/status indication information can comprise polytype, such as, can to comprise with Types Below one of at least:
Terminal is in the subframe of CSI subframe collection 0, the method not using interference to eliminate/suppress receives measuring-signal and determines a kind of channel quality/status indication information, in the subframe of CSI subframe collection 1, the method not using interference to eliminate/suppress receives measuring-signal and determines another channel quality/status indication information; In the subframe of CSI subframe collection 1, the method not using interference to eliminate/suppress receives measuring-signal and determines a kind of channel quality/status indication information, in the subframe of CSI subframe collection 1, the method using interference to eliminate/suppress receives measuring-signal and determines another channel quality/status indication information; In the subframe of CSI subframe collection 1, the method using interference to eliminate/suppress receives measuring-signal and determines a kind of channel quality/status indication information, in the subframe of CSI subframe collection 1, the method using interference to eliminate/suppress receives measuring-signal and determines another channel quality/status indication information.
On the other hand, when terminal configuration is transmission mode 10, multiple channel quality/status indication information determined in configuration information or the index that can pass through multiple CSI (ChannelStatusInformation, channel condition information) process; When terminal configuration is the wherein a kind of pattern in the middle of transmission mode 1 to transmission mode 9, a kind of channel quality/status indication information can be determined in the subframe of CSI subframe collection 0, the subframe of CSI subframe collection 1 is determined another channel quality/status indication information.
The processing method of this feedback information, can also be applied to base station, comprise: multiple channel quality/status indication information that base station receiving terminal sends over, and determines the modulation coding mode MCS of data message and is indicated to this terminal.
Based on the processing method of above-mentioned feedback information, mainly comprise following process: receive measuring-signal, according to measuring-signal determination channel quality/status indication information; Wherein, this measuring-signal comprises: public reference signal, channel state information reference signals, interferometry resource signal, Data Shared Channel signal; Wherein, terminal uses one or more method of reseptances signal received in identical subframe or different subframe to determine multiple channel quality/status indication information respectively, or terminal determines multiple channel quality/status indication information based on the measuring-signal in different subframe, or terminal determines multiple channel quality/status indication information based on multiple different interference hypothesis; Channel quality/status indication information is sent to base station by terminal, multiple channel quality/status indication information that base station receiving terminal sends over, and determines the modulation coding mode MCS of data message and is indicated to terminal.
Therefore, user terminal is by the multiple channel quality/status indication information of feedback, solve the problem of the link circuit self-adapting mismatch using dissimilar receiver and bring in data demodulates stage and channel measurement stage due to user terminal, the technology of senior receiver can be widely used in the downlink transfer of LTE-A, thus promote the spectrum efficiency of network.
Below in conjunction with accompanying drawing, the preferred embodiment for the present invention is described.
Embodiment one
The processing method of feedback information in the preferred embodiment, the method that terminal does not use interference to eliminate/suppress receives measuring-signal, CSI subframe collection 0 subframe determines CQI1, CSI subframe collection 1 subframe determines CQI2;
Or the method that terminal does not use interference to eliminate/suppress receives measuring-signal and determines CQI1 in the subframe of CSI subframe collection 0, method CSI subframe collection 1 subframe using interference eliminate/suppress receives measuring-signal and determines CQI2;
Or the method that terminal uses interference to eliminate/suppress receives measuring-signal and determines CQI1 in the subframe of CSI subframe collection 0, the method subframe of CSI subframe collection 1 not using interference eliminate/suppress receives measuring-signal and determines CQI2;
Or the method that terminal uses interference to eliminate/suppress receives measuring-signal and determines CQI1 in the subframe of CSI subframe collection 0, the method subframe of CSI subframe collection 1 using interference eliminate/suppress receives measuring-signal and determines CQI2;
Then CQI1 and CQI2 is fed back to base station by terminal, and the modulation coding mode MCS of data message is determined according to CQI1 and CQI2 in base station, and is indicated to terminal by descending control signaling.
Wherein, measuring-signal comprise following one of at least: public reference signal, channel state information reference signals, interferometry resource signal, Data Shared Channel signal.
Embodiment two
In the preferred embodiment, when terminal configuration is transmission mode 10, determine multiple channel quality/status indication information by the configuration information of multiple CSI (ChannelStatusInformation, channel condition information) process or index;
Such as, at index be 0 CSI process on do not use interference eliminate/suppress method determine the first channel quality/status indication information, at index be 1 CSI process on use interference eliminate/suppress method determination the second channel quality/status indication information; Or, at index be 0 CSI process on use interference eliminate/suppress method determine the first channel quality/status indication information, at index be 1 CSI process on do not use interference eliminate/suppress method determination the second channel quality/status indication information;
When terminal configuration is the wherein a kind of pattern in the middle of transmission mode 1 to transmission mode 9, the subframe of CSI subframe collection 0 is determined a kind of channel quality/status indication information, the subframe of CSI subframe collection 1 is determined another channel quality/status indication information;
Embodiment three
In the preferred embodiment, terminal determines multiple channel quality/status indication information based on multiple different interference hypothesis, wherein, interference hypothesis comprises: exist in multiuser multiplexing or community or the interference of minizone, do not exist in multiuser multiplexing or community or the interference of minizone, interference is modulated based on QPSK, interference is modulated based on 16QAM, interference is modulated based on 64QAM, interference is modulated based on 256QAM, interference is the transmission mode based on demodulated reference signal, and interference is the transmission mode based on public reference signal.
Such as, terminal based on exist in multiuser multiplexing or community or the interference of minizone when determine CQI1, based on do not exist in multiuser multiplexing or community or the interference of minizone when determine CQI2; Or, determine CQI1 when being QPSK modulation based on supposition interference, when being 16QAM or 64QAM modulation based on supposition interference, determine CQI2; Or assuming that determine CQI1 when interference is transmission mode based on demodulated reference signal, be determine CQI2 based on when public reference signal based on supposition interference.
Then CQI1 and CQI2 is fed back to base station by terminal, and the code modulation mode MCS of data message is determined according to CQI1 and CQI2 in base station, and is indicated to terminal by descending control signaling.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. channel quality/status indication information processing method, is characterized in that, comprising:
Receive measuring-signal;
In the following manner one of at least, according to described measuring-signal determination channel quality/status indication information: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal;
Described channel quality/the status indication information determined is sent to base station.
2. method according to claim 1, is characterized in that, described method of reseptance comprise following one of at least:
Use interference to eliminate/suppress, do not use interference to eliminate/suppress.
3. method according to claim 1, is characterized in that, described measuring-signal comprise following one of at least:
Public reference signal, channel state information reference signals, interferometry resource signal, Data Shared Channel signal.
4. method according to claim 1, is characterized in that, described different subframe comprises:
Two kinds of CSI subframe collection.
5. method according to claim 4, is characterized in that, described two kinds of CSI subframe collection comprise:
There is the subframe collection of almost empty subframe ABS configuration information and not there is the subframe collection of ABS configuration information.
6., according to claim 1 and method according to claim 4, it is characterized in that, according to described measuring-signal determination channel quality/status indication information comprise following one of at least:
In the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress;
In the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress;
In the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress;
In the subframe of described CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress.
7. method according to claim 1, is characterized in that, described interference hypothesis comprise following one of at least:
There is the interference in the community of multiuser multiplexing;
There is the interference of the minizone of multiuser multiplexing;
There is not the interference in the community of multiuser multiplexing;
There is not the interference of the minizone of multiuser multiplexing.
8. method according to claim 1, is characterized in that, described interference hypothesis comprise following one of at least:
Interference is based on QPSK modulation, and interference is based on 16QAM modulation, and interference is based on 64QAM modulation, and interference is that interference is the transmission mode based on demodulated reference signal, and interference is the transmission mode based on public reference signal based on 256QAM modulation.
9. method according to claim 1, is characterized in that, according to described measuring-signal determination channel quality/status indication information comprise following one of at least:
When transmission mode is configured to transmission mode 10, determine multiple channel quality/status indication information by the configuration information of multiple channel condition information process or index;
When transmission mode is configured to the wherein a kind of pattern in the middle of transmission mode 1 to transmission mode 9, the subframe of CSI subframe collection 0 is determined the first channel quality/status indication information, the subframe of CSI subframe collection 1 is determined the second channel quality/status indication information.
10. channel quality/status indication information processing method, is characterized in that, comprising:
Channel quality/status indication information that receiving terminal sends, wherein, described channel quality/status indication information by described terminal in the following manner one of at least, is determined according to described measuring-signal: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal;
According to the modulation coding mode of described channel quality/status indication information determination data;
The described modulation coding mode determined is sent to described terminal.
11. 1 kinds of channel quality/status indication information processing unit, is characterized in that, comprising:
First receiver module, for receiving measuring-signal;
First determination module, for in the following manner one of at least, according to described measuring-signal determination channel quality/status indication information: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal;
First sending module, for sending to base station by the described channel quality/status indication information determined.
12. devices according to claim 11, is characterized in that, described first determination module comprise following one of at least:
First determining unit, for the subframe at CSI subframe collection 0, the described measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress;
Second determining unit, for the subframe at CSI subframe collection 0, the described measuring-signal received according to the method not using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress;
3rd determining unit, for the subframe at described CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of described CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method not using interference to eliminate/suppress;
4th determining unit, for the subframe at CSI subframe collection 0, the described measuring-signal received according to the method using interference to eliminate/suppress determines the first channel quality/status indication information, in the subframe of CSI subframe collection 1, the described measuring-signal determination the second channel quality/status indication information received according to the method using interference to eliminate/suppress.
13. devices according to claim 11, is characterized in that, described first determination module comprise following one of at least:
5th determining unit, for when transmission mode is configured to transmission mode 10, determines multiple channel quality/status indication information by the configuration information of multiple channel condition information process or index;
6th determining unit, during for being configured to the wherein a kind of pattern in the middle of transmission mode 1 to transmission mode 9 when transmission mode, the subframe of CSI subframe collection 0 is determined the first channel quality/status indication information, the subframe of CSI subframe collection 1 is determined the second channel quality/status indication information.
14. 1 kinds of terminals, is characterized in that, comprise the device according to any one of claim 11 to 13.
15. 1 kinds of channel quality/status indication information processing unit, is characterized in that, comprising:
Second receiver module, for channel quality/status indication information that receiving terminal sends, wherein, described channel quality/status indication information by described terminal in the following manner one of at least, is determined according to described measuring-signal: the described measuring-signal received in identical or different subframe according to one or more method of reseptances determines described channel quality/status indication information; Described channel quality/status indication information is determined according to different interference hypothesis and described measuring-signal; Described channel quality/status indication information is determined according to channel condition information CSI process index and described measuring-signal;
Second determination module, for the modulation coding mode according to described channel quality/status indication information determination data;
Second sending module, for sending to described terminal by the described modulation coding mode determined.
16. 1 kinds of base stations, is characterized in that, comprise device according to claim 15.
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| CN201410391009.XA CN105471544B (en) | 2014-08-08 | 2014-08-08 | Channel quality/state indication information processing method, device, terminal and base station |
| PCT/CN2015/077537 WO2016019741A1 (en) | 2014-08-08 | 2015-04-27 | Method for processing channel quality/state indication information, apparatus, terminal and base station |
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