CN105101423A - Interference processing method, base station, terminal and system - Google Patents

Abstract

The invention discloses an interference processing method, a base station, a terminal and a system. The method comprises the following steps that N sets of muting RE resources are configured; muting RE resources in the configured N sets of muting RE resources are allocated to M interference cells; and the terminal is informed of downlink transmission parameter information of the M interference cells. The N sets of muting RE resources are used for the terminal to determine those interference cells requiring interference cancellation/suppression among the M interference cells. The downlink transmission parameter information is used for the terminal to perform interference cancellation on those interference cells requiring interference cancellation/suppression. M and N are both positive integers.

Description

Interference processing method, base station, terminal and system

Technical field

The present invention relates to the interference elimination/suppression technology in the communications field, particularly relate to a kind of interference processing method, base station, terminal and system.

Background technology

Promote for obtaining higher spectrum efficiency, cell deployment density is more and more higher, more and more becomes the principal element of limiting network capacity with the co-channel interference of user's interference and minizone in community.In current research, mainly the interference of side Network Based is avoided and coordination technique, and basic thought is the mode such as precoding, cooperative scheduling by network side, realizes avoiding of interference at transmitter side.But the interference based on transmit leg cooperates, depend on the accuracy of the channel condition information (CSI, ChannelStateInformation) of feedback to a great extent.Show according to correlative study data, adopt advanced method of reseptance also can compress interference well, cooperate relative to the interference of transmit leg, the enhancing based on terminal can alleviate the pressure of feedback of channel information simultaneously.Therefore how receiving by optimizing terminal to compress interference better, is the important directions effectively improving spectrum efficiency.

Long Term Evolution (LTE, LongTermEvolution) technology is the radio honeycomb communication technology of forth generation mobile communication technology (4G, FourthGeneration).

Fig. 1 is the LTE system Physical Resource Block (PRB according to correlation technique, PhysicalResourceBlock) schematic diagram, as shown in Figure 1, a Resource Unit (RE, ResourceElement) be an OFDM (OFDM, OrthogonalFrequencyDivisionMultiplexing) subcarrier in symbol, and a descending RB is by continuous print 12 subcarriers and continuous print 7 (when extended cyclic prefix being 6) OFDM (OFDM, OrthogonalFrequencyDivisionMultiplexing) symbol is formed.A Resource Block is 180kHz on frequency domain, time domain is the time span of a time slot.When carrying out Resourse Distribute, can with in a subframe (corresponding two time slots) two Resource Block (also referred to as a Physical Resource Block to) distribute for base unit.

In LTE system, employing be that public reference signal (CRS, CommonReferenceSignal) carries out pilot measurement and data demodulates, namely all terminals all use CRS to carry out channel estimating.When adopting the precoding processing mode based on CRS, concrete pre-coding matrix (also referred to as the precoding weights) information used when needing transmitting terminal additional notifications receiving terminal data to send, and also the expense of pilot tone is larger.In addition, in multi-user's multiple-input and multiple-output (MU-MIMO, Multi-userMulti-inputMulti-output) system, because multiple terminal uses identical CRS, cannot realize the orthogonal of pilot tone, and CRS transmission does not comprise the precoding information of data, is therefore unable to estimate interference.

Long Term Evolution (the LTE-A strengthened, AdvancedLongTermEvolution) 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, i.e. demodulated reference signal (DMRS, DemodulationReferenceSignal) and channel state information reference signals (CSI-RS, ChannelStateInformationReferencedSignal).Wherein, CSI-RS is mainly used in channel measurement to obtain channel quality information (CQI, and feed back ChannelQualityInformation), so that base station side can utilize this information completing user dispatch and realize modulation coding mode (MCS, ModulationandCodingScheme) self-adjusted block, does not carry precoding information in the transmission of CSI-RS; And DMRS is mainly used in Physical Downlink Shared Channel (PDSCH, PhysicalDownlinkSharedChannel) channel estimating is to complete the demodulation of data, the transmission of DMRS carries the precoding information of respective physical DSCH Downlink Shared Channel Physical Downlink Shared Channel (PDSCH, PhysicalDownlinkSharedChannel).

In LTE, in order to support, to the adjustment of different terminals PDSCH transmitted power, to introduce P _aand P _btwo parameters are used to indicate the ratio of the power (EPRE, EnergyperResourceElement) on each resource element of PDSCH and CRSEPRE.Due in LTE, support to improve (powerboosting) the power of CRS, simultaneously in order to ensure the transmitted power consistency of each OFDM symbol, in the OFDM symbol sending CRS, while CRS carries out powerboosting, PDSCH needs to reduce certain power, and this just causes in the OFDM symbol of transmission CRS and does not send in the OFDM symbol of CRS, and the EPRE that PDSCH is corresponding there are differences.In order to distinguish this species diversity, define respectively ρ A represent there is no CRS OFDM symbol on the ratio of PDSCHEPRE and CRSEPRE, ρ B represents to exist in the OFDM symbol of CRS, the ratio of PDSCHEPRE and CRSEPRE, now P _b=ρ _b/ ρ _a.Wherein, when PDSCH is when based on 4 antenna transmission diversity transmission, ρ _a=δ _power-offset+ P _a+ 10log ₁₀(2), otherwise, ρ _a=δ _power-offset+ P _a, wherein δ _power-offsetunder the scene removing MU-MIMO transmission pattern, value is 0dB.

There is multiple senior receiving algorithm at present to suppress interference, promoted the demodulation performance of receiving terminal.Eliminate/suppress (NAICS in current network assistance interference, NetworkAssistanceInterference/Suppression) in technical research, the senior receiver related to mainly comprises: the least mean-square error AF panel of enhancing merges (E-MMSE-IRC, EnhancedMinimumMeanSquareError-InterferenceRejectionComb ining) receiver, (SL-IC is eliminated in symbol level interference, SymbolLevelInterferenceCancellation) receiver, reduce the maximum likelihood (R-ML of complexity, ReducedcomplexityMaximumLikelihood) receiver.The main purpose of these senior receivers is that carrying out interference to the high reject signal of terminal eliminates/suppress process, to promote the data receiver performance of terminal.Therefore, terminal needs the relevant information obtaining its high reject signal, such as pilot frequency information, precoding information, transmission mode information, modulation levels information etc., the target data after then eliminating according to these information acquisition strong interferers/suppress.Terminal can adopt the mode of blind Detecting or network side signaling to obtain interference signal relevant information.Wherein, estimate interfere information information by Blind Detect Algorithm, this method complexity is relatively high, and the interference signal information estimated has certain error; Base station sends the relevant information of interference signal to terminal, this method complexity is relatively low, and the interference signal information accuracy that terminal obtains is relatively high, but shortcoming is the corresponding information of base station transmission interference signal can increase descending Overhead, especially, when interference signal is many, descending Overhead also can be many.

In reality, the interference signal of terminal often exists multiple simultaneously, owing to being subject to the impact of minizone imperfect back haul link (backhaul) time delay, base station is difficult to the interference signal knowing that terminal is existing when data receiver in time, and which/a little signal needs to carry out disturbing the interference signal eliminated, although terminal can determine by the mode of blind Detecting the interference signal needing elimination/suppression in theory on the other hand, but this can increase the complexity of terminal blind Detecting further, blind Detecting accuracy simultaneously for some weak jamming signal parameters also can be very inaccurate.Therefore deposit in case in multiple interference signal, how to reduce the blind Detecting complexity of terminal, network side signaling consumption, can not terminal demodulation performance be affected again, at present still without effective solution simultaneously.

Summary of the invention

The embodiment of the present invention provides a kind of interference processing method, base station, terminal and system, can deposit in case in multiple interference signal, reduce complexity, the network side signaling consumption of the blind Detecting of terminal, can not affect terminal demodulation performance again simultaneously.

The technical scheme of the embodiment of the present invention is achieved in that

The embodiment of the present invention provides a kind of interference processing method, and described method comprises:

Configuration N overlaps silent resource unit (mutingRE) resource, is the mutingRE resource in the N cover mutingRE resource that M interfered cell configures;

The downlink transfer parameter information of a described M interfered cell is informed to terminal; Wherein,

Described N overlaps mutingRE resource and is used for determining to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing for described terminal; Described downlink transfer parameter information is used for eliminating needing to carry out disturbing the interfered cell of eliminating/suppressing to carry out interference for described terminal; M and N is positive integer.

The embodiment of the present invention also provides a kind of interference processing method, and described method comprises:

Determine that N overlaps the configuration information of mutingRE resource, determine that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource based on described configuration information;

By each interfered cell in a described M interfered cell distribute Received signal strength on resource location corresponding to mutingRE resource, determine to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing;

According to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

The embodiment of the present invention provides a kind of interference processing method, and described method comprises:

The N that base station configures for M interfered cell overlaps the mutingRE resource in mutingRE resource; The downlink transfer parameter information of a described M interfered cell is informed to terminal;

Described terminal overlaps the configuration information of silent resource unit mutingRE resource according to determined described N, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource;

Described terminal distributes Received signal strength on resource location corresponding to mutingRE resource by the institute of each interfered cell in a described M interfered cell, determines the interfered cell needing in a described M interfered cell to carry out interference elimination/suppression;

Described terminal is according to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

The embodiment of the present invention provides a kind of base station, and described base station comprises:

Dispensing unit, overlaps mutingRE resource for configuring N;

Allocation units, the N for distributing described configuration for M interfered cell overlaps the mutingRE resource in mutingRE resource;

First communication unit, for informing to terminal by the downlink transfer parameter information of a described M interfered cell; Wherein,

Described N overlaps mutingRE resource and is used for determining to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing for described terminal; Described downlink transfer parameter information is used for eliminating needing to carry out disturbing the interfered cell of eliminating/suppressing to carry out interference for described terminal; M and N is positive integer.

The embodiment of the present invention also provides a kind of terminal, and described terminal comprises:

Second communication unit, for receiving the downlink transfer parameter information of M interfered cell;

Based on described configuration information, first determining unit, for determining that described N overlaps the configuration information of mutingRE resource, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource;

Second determining unit, for distributing Received signal strength on resource location corresponding to mutingRE resource by the institute of each interfered cell in a described M interfered cell, determines the interfered cell needing in a described M interfered cell to carry out interference elimination/suppression;

Interference processing unit, for the downlink transfer parameter information according to the described interfered cell determined corresponding in described downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from the described interfered cell determined, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

The embodiment of the present invention also provides a kind of interference treatment system, and described system comprises: base station and terminal; Wherein,

Described base station, the N for configuring for M interfered cell overlaps the mutingRE resource in mutingRE resource; The downlink transfer parameter information of a described M interfered cell is informed to terminal;

Described terminal, for overlapping the configuration information of mutingRE resource according to determined described N, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource;

Received signal strength on the resource location that the mutingRE resource of being distributed by each interfered cell in a described M interfered cell is corresponding, determines to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing;

According to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

In the embodiment of the present invention, the downlink transfer parameter information of M interfered cell is informed to terminal by base station respectively, and overlaps the resource location of mutingRE to terminal instruction N, needs to carry out disturbing the interfered cell of eliminating to assist terminal judges; Determine to need to carry out disturbing the interfered cell of eliminating/suppressing, based on the downlink transfer parameter information blind Detecting of described interfered cell from the downlink transfer parameter information of the interference signal of described interfered cell, and interference elimination/suppression is carried out to described interference signal, wherein, determine to need to carry out disturbing the interfered cell of eliminating/suppressing by the signal of the reception on the resource location of mutingRE resource place; Resource Unit expense is little, effectively can reduce terminal blind Detecting complexity, improve blind Detecting accuracy, and not increase the signaling consumption of base station end, on the basis not increasing base station end signaling consumption, the demodulation performance of terminal can be improved, reduce the blind Detecting complexity of terminal simultaneously.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of PRB in correlation technique;

Fig. 2 is the realization flow schematic diagram one disturbing processing method in the embodiment of the present invention;

Fig. 3 is the realization flow schematic diagram two disturbing processing method in the embodiment of the present invention;

Fig. 4 a is using the schematic diagram one of DMRSRE as mutingRE resource in the embodiment of the present invention;

Fig. 4 b is using the schematic diagram two of DMRSRE as mutingRE resource in the embodiment of the present invention;

Fig. 5 is using the schematic diagram of CSI-RSRE as mutingRE resource in the embodiment of the present invention;

Fig. 6 is the realization flow schematic diagram three disturbing processing method in the embodiment of the present invention;

Fig. 7 is the composition structural representation of base station in the embodiment of the present invention;

Fig. 8 is the composition structural representation of terminal in the embodiment of the present invention;

Fig. 9 is the composition structural representation disturbing treatment system in the embodiment of the present invention;

Figure 10 is the interference scene schematic diagram of user equipment downlink data in the embodiment of the present invention;

Figure 11 a ~ Figure 11 d is the configuration schematic diagram of mutingRE resource in different districts in the embodiment of the present invention.

Embodiment

Be described in further detail the present invention below in conjunction with drawings and the specific embodiments, it should be noted that, when not conflicting, the feature in the embodiment of the present invention and embodiment can combine mutually.

The embodiment of the present invention describes a kind of interference processing method, is applied to network side base station, as shown in Figure 2, comprises the following steps:

Step 201, base station configuration N overlaps mutingRE resource.

Step 202 is the mutingRE resource in the N cover mutingRE resource that M interfered cell configures.

Step 203, informs to terminal by the downlink transfer parameter information of a described M interfered cell.

Preferably, base station configures N according to the mode of making an appointment with terminal and overlaps mutingRE resource.

Wherein, described N overlaps in mutingRE resource and has a set of mutingRE Resourse Distribute at least to described interfered cell; The mutingRE resource that described N overlaps in mutingRE resource can also distribute to Serving cell; M and N is positive integer, and M is less than or equal to N.

With the method shown in Fig. 2 accordingly, the embodiment of the present invention also records a kind of interference processing method, is applied to end side, as shown in Figure 3, comprises the following steps:

Step 301, determines that N overlaps the configuration information of mutingRE resource, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource based on described configuration information.

In practical application, terminal overlaps the information such as the configuration information of mutingRE resource and the Physical Cell Identifier (cellID) of a described M interfered cell based on described N, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource.

Step 302, by each interfered cell in a described M interfered cell distribute Received signal strength on resource location corresponding to mutingRE resource, determine to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing.

Step 303, according to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.Preferably, M is less than or equal to N.

Preferably, the configuration information of N cover mutingRE resource can be made an appointment by terminal and base station.

In practical application, often not only M is individual for the quantity of interfered cell, as an execution mode, before the downlink transfer parameter information of M interfered cell is informed to terminal by base station, M interfered cell can also be selected in base station from multiple interfered cell, so that the downlink transfer parameter information of this M interfered cell is informed to terminal respectively; Be not construed as limiting in the present embodiment for selecting the mode of M interfered cell, such as base station can nearest M interfered cell, Serving cell, chosen distance terminal place, or, base station can according to the Reference Signal Received Power (RSRP of terminal feedback, ReferenceSignalReceivingPower) judge to there is interference signal in which community, from the N number of community that there is interference signal, select M the interfered cell that interference signal intensity is the strongest.In a word, a base station selected M interfered cell is the implementation procedure of base station side.

As an execution mode, the downlink transfer parameter information of M interfered cell is configured to index with different Physical Cell Identifier for index or with CSI-RS by base station in service sector, by the terminal that community specific (cell-specific) high-level signaling broadcast announcement is served to base station, be that an example of index transmission downlink transfer parameter is as shown in table 1 with Physical Cell Identifier:

Table 1

As shown in table 1, cell ID (CellID) 1 is the Physical Cell Identifier of interfered cell 1, and CellID2 is the Physical Cell Identifier of interfered cell 2.

Wherein, the downlink transfer parameter of each interfered cell comprises following information one of at least:

1) Physical Cell Identifier of interfered cell;

2) community own reference signal (CRS, the Cell-specificReferenceSignals) port of interfered cell;

3) multicast single frequency network (MBSFN, the MulticastBroadcastSingleFrequencyNetwork) sub-frame configuration of interfered cell;

4) CRS of interfered cell and data power ratio relevant parameter P _b;

5) CRS of interfered cell and the span of data power ratio parameter P_A;

6) system bandwidth of interfered cell;

7) circulating prefix-length of interfered cell;

8) instruction that whether interfered cell is synchronous with Serving cell;

9) initial OFDM (OFDM, the OrthogonalFrequencyDivisionMultiplexing) character position of the downlink data of interfered cell in a subframe;

10) transmission mode (TM, the TransferMode) scope used is supported in interfered cell;

11) demodulated reference signal (DMRS, DemodulationReferenceSignal) virtual channel identification (VCID, the VirtualChannelIDentifier) scope used is supported in interfered cell;

12) resource distribution mode used is allowed in interfered cell;

13) the resource allocation unit size of interfered cell;

14) zero energy/non-zero power channel status instruction reference signal (CSI-RS, the ChannelStateIndicationonReferenceSignal) resource allocation information of interfered cell.

Wherein, resource allocation unit comprise 1 Physical Resource Block (PRB, PhysicalResourceBlock) to or multiple PRB couple.

As an execution mode, a set of mutingRE resource in mutingRE resource, according to the Physical Cell Identifier of interfered cell, is overlapped in network side base station for the described N of distribution of any one interfered cell in M interfered cell; Such as can overlap mutingRE resource according to the serial number preset to N is 1 ~ N;

For any one interfered cell, determine the value i that the Physical Cell Identifier of described interfered cell obtains N remainder number (namely carrying out modulo operation to N), i.e. i=CellIDmodN; (i+1) that overlap in mutingRE resource for interfered cell configuration N overlaps mutingRE resource (or being numbered the mutingRE resource of i+1); Wherein, i is nonnegative integer;

Certainly, also can adopt alternate manner to the numbering of mutingRE resource, such as, N be overlapped mutingRE resource and be numbered 0 ~ (N-1) according to preset order; Accordingly, the value i that the Physical Cell Identifier of described interfered cell obtains N remainder number (namely carrying out modulo operation to N), i.e. i=CellIDmodN is determined; For interfered cell configuration N overlaps the mutingRE resource being numbered i in mutingRE resource; Wherein, i is nonnegative integer.

When it is pointed out that base station is Serving cell distribution mutingRE resource, can take and mode similar above, namely mutingRE resource be overlapped to described N and be numbered 1 to N according to preset order; By the value j that the Physical Cell Identifier of Serving cell obtains N remainder number, (j+1) that distribute in described N cover mutingRE resource for Serving cell overlaps mutingRE resource; Wherein, the sequence of overlapping mutingRE resource for N can network side base station and terminal be preset.

As an execution mode, base station is after the interfered cell (or Serving cell) by the i-th cover mutingRE resource distribution to the value of Physical Cell Identifier to N remainder number being i, can identify to terminal notification NAICS (NAICS mark and Serving cell and M interfered cell one_to_one corresponding), whether enable for the mutingRE resource to terminal instruction interfered cell (or Serving cell) configuration (namely distributed); Such as, when base station indicates the NAICS of interfered cell 1 to be designated 0 to terminal, represent that the mutingRE resource that this interfered cell 1 is distributed is enable; Represent that when the NAICS of interfered cell 1 is designated 0 the mutingRE resource that this interfered cell 1 configures is not enable; Certainly, base station also can not to terminal instruction NAICS mark, now, the mutingRE resource that terminal can give tacit consent to interfered cell 1 configuration is enable, and according to the Physical Cell Identifier of interfered cell 1 to the value i of N remainder number, determine that interfered cell 1 is configured with N and overlaps the i-th cover mutingRE resource in mutingRE resource.

As an execution mode, configuring can for supporting the one or more Resource Units be configured in the Resource Unit of DMRS port 9/10/12/14 to a set of mutingRE resource of (interfered cell or the Serving cell) of a community; DMRS port 9/10/12/14 is not used in Serving cell and sends data to terminal.Such as, in Fig. 4 a, mutingRE resource is made up of two continuous print Resource Units in the Resource Unit of DMRS port 9/10/12/14, in Fig. 4 b, every suit mutingRE resource is made up of the Resource Unit that two in the Resource Unit of DMRS port 9/10/12/14 are discrete, suppose that resource allocation unit is 1 PRB couple, each PRB centering co-exists in configurable 6 cover mutingRE resources, can be then 0 ~ 5 by this 6 cover mutingRE resource reference numeral, also can be numbered this 6 cover mutingRE resource according to other orders in certain Fig. 4 a and 4b.

As an execution mode, mutingRE resource is the one or more Resource Units supporting to be configured in the Resource Unit of CSI-RS port.As shown in Figure 5, every suit mutingRE resource is made up of the Resource Unit that two antenna port CSI-RS are corresponding, suppose that resource allocation unit is 1 PRB couple, each PRB centering co-exists in configurable 3 cover mutingRE resources, can be then 0 ~ 2 according to preset order reference numeral by this 3 cover mutingRE resource, also can be numbered this 3 cover mutingRE resource according to other orders in certain Fig. 5.

As an execution mode, mutingRE resource is made up of two groups of discrete resource unit group, and these two groups discrete resource unit group correspondences are positioned on the 1st PRB and the 2nd PRB of a Physical Resource Block PRB centering.Wherein, resource unit group is made up of one or more Resource Unit; Described two groups of discrete resource unit group are made up of the Resource Unit beyond following Resource Unit: support to be configured to CRS Resource Unit; Support the Resource Unit being configured to CSI-RS; Support the one or more Resource Units be configured to outside the Resource Unit of DMRS port 7/8/11/13; Or described these two groups discrete resource unit group are made up of the Resource Unit beyond following Resource Unit: support the Resource Unit being configured to CRS; Support the Resource Unit of configuration CSI-RS; Support the Resource Unit being configured to DMRS port 7/8/11/13; Support is configured to the one or more Resource Units outside the Resource Unit of physical downlink control channel (PDCCH, PhysicalDownlinkControlChannel).

When base station be an interfered cell (or Serving cell) configure mutingRE resource time, then interfered cell sends zero energy signal on distributed mutingRE resource location, and the downlink data of interfered cell maps according to the mode of rate-matched in distributed mutingRE resource; As an execution mode, base station is the mutingRE resource that interfered cell (or Serving cell) is distributed, corresponding with the resource allocation unit of interfered cell (or Serving cell), that is, mutingRE resource can be that unit distributes according to the resource allocation unit of interfered cell (or Serving cell), namely on different resource allocation units, carries out identical mutingRE resource mapping.

As an execution mode, the described N configured for M interfered cell overlaps the mutingRE resource in mutingRE resource, comprising:

According to the Physical Cell Identifier of described interfered cell, for a set of mutingRE resource in described N cover mutingRE resource is distributed in any one interfered cell in a described M interfered cell; Such as, can realize in the following manner:

MutingRE resource is overlapped to described N and is numbered 1 to N according to preset order;

Determine the value i of the Physical Cell Identifier of described interfered cell to N remainder number;

Determine that the mutingRE resource of distributing described interfered cell is that described N overlaps the imutingRE resource being numbered (i+1) in mutingRE resource; Wherein, i is the nonnegative integer being less than N; The number order that described N overlaps mutingRE resource is consistent with the number order that mutingRE resource is overlapped to described N in base station, and described number order can be made an appointment by terminal and base station.

As an execution mode, terminal according to mode similar above, can determine the mutingRE resource of distributing Serving cell according to the Physical Cell Identifier of Serving cell, that is, overlap mutingRE resource to described N and be numbered 1 to N according to preset order; Determine the value j of the Physical Cell Identifier of Serving cell to N remainder number, and determine that the mutingRE resource of distributing Serving cell is that (j+1) that N overlaps in mutingRE resource overlaps mutingRE resource.

As an execution mode, when terminal determines the mutingRE resource of distributing a described M interfered cell, namely acquiescence determines that described interfered cell sends zero energy signal in distributed mutingRE resource, and in distributed mutingRE resource, maps downlink data according to the mode of rate-matched.

As an execution mode, when terminal receives the enable mark of NAICS of described interfered cell, and the described NAICS enable mark instruction described interfered cell mutingRE resource of distributing enable time, terminal determines that described interfered cell sends zero energy signal in distributed mutingRE resource, and described interfered cell maps downlink data according to the mode of rate-matched in distributed mutingRE resource;

That is, when terminal determines the mutingRE resource of distributing interfered cell, also need when determining to receive the enable mark of NAICS that the mutingRE resource of distributing instruction interfered cell is enabled, just determine that described interfered cell sends zero energy signal in distributed mutingRE resource, and described interfered cell maps downlink data according to the mode of rate-matched in distributed mutingRE resource.

When terminal receives the enable mark of the NAICS for an interfered cell that base station sends, then terminal determines that this interfered cell configuration mutingRE resource is enabled, and this interfered cell sends zero energy signal on the resource location that distributed mutingRE resource is corresponding, and the downlink data of Serving cell maps according to the mode of rate-matched on distributed mutingRE resource location, thus signal resource location corresponding to the terminal mutingRE resource that can configure in this interfered cell received after the elimination interference of this interfered cell, correspondingly, as an execution mode, when terminal receives the enable mark of NAICS that the mutingRE resource of distributing instruction M interfered cell is enabled, terminal is according to the Received signal strength on the resource location that the mutingRE resource of M interfered cell configuration is corresponding, judge that M interfered cell is eliminated the need of carrying out interference/suppressed, and when judging that M interfered cell needs to carry out interference elimination/suppression, the downlink transfer parameter information of downlink transfer parameter information to the interference signal from M interfered cell based on received a M interfered cell carries out blind Detecting, to obtain the relevant transmission information of interference signal, complete based on obtained interference signal relevant transmission information and the interference of interference signal is eliminated/suppressed.

As an execution mode, when terminal receives the enable mark of NAICS corresponding to M interfered cell, according to the Received signal strength (signal after interference elimination) on the corresponding resource location of the mutingRE resource of distributing M interfered cell, and the Received signal strength (signal namely before interference elimination) on the corresponding resource location of the non-mutingRE resource of M interfered cell configuration, judge whether that needing to carry out interference to M interfered cell eliminates; Such as, the difference of the power of the Received signal strength after the signal power of reception and the interference of M interfered cell before the interference of M interfered cell elimination can being eliminated, compare with predetermined threshold value, if difference is less than this predetermined threshold value, then terminal determines that not needing to carry out interference eliminates/suppress process, otherwise determines that needs carry out interference and eliminate/suppress process;

When judging that needs carry out interference elimination/suppression process, Received signal strength on the corresponding resource location of mutingRE resource that terminal can be distributed according to each interfered cell in M interfered cell, judge that each interfered cell needs to carry out interference and eliminates/suppress successively, need to carry out disturbing the interfered cell of eliminating/suppressing for judging, the downlink transfer parameter information corresponding based on received interfered cell carries out disturbing the downlink transfer parameter information of the interference signal of the interfered cell of eliminating/suppressing to carry out blind Detecting to needing, to obtain interference signal relevant transmission information, utilize the interference signal relevant transmission information obtained to carry out interference to eliminate/suppress,

It should be noted that, Serving cell is eliminated the need of carrying out interference/suppressed, can adopt in the same way, namely according to Received signal strength (eliminating the signal after interference) on the corresponding resource location of the mutingRE resource of Serving cell configuration, and the Received signal strength (signal namely before interference elimination) on the corresponding resource location of the non-mutingRE resource of Serving cell configuration, judge whether that needing to carry out interference to this Serving cell eliminates.

As an execution mode, terminal to when needing to carry out disturbing the downlink transfer parameter of interference signal of the interfered cell of eliminating/suppressing to carry out blind Detecting, the downlink transfer parameter of described interference signal comprise following one of at least:

The descending TM of described interference signal;

Transmission number of plies order instruction (RI, RankIndication) of described interference signal;

The precoding weights of described interference signal;

The DMRS port of described interference signal;

The DMRS scrambling code identification of described interference signal;

The DMRS virtual subdistrict mark VCID of described interference signal;

The initial OFDM symbol of data in a subframe of described interference signal;

The P_A that the CRS of described interference signal is relevant to the power ratio of data.

The embodiment of the present invention also records a kind of interference processing method, is applied to base station and terminal, as shown in Figure 6, comprises the following steps:

Step 601, the N that base station configures for M interfered cell overlaps the mutingRE resource in mutingRE resource.

Wherein, base station can configure N according to the mode of arranging with terminal and overlaps mutingRE resource.

Step 602, terminal overlaps the configuration information of mutingRE resource based on described N, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource.

Correspondingly, terminal according to the mode of the configuration mutingRE resource of arranging with base station, can determine that described N overlaps the configuration information of mutingRE resource.

Step 603, described terminal distributes Received signal strength on resource location corresponding to mutingRE resource by the institute of each interfered cell in a described M interfered cell, determines the interfered cell needing in a described M interfered cell to carry out interference elimination/suppression.

Step 604, described terminal is according to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

About the details for disclosing in step 601 to the enforcement of step 604, refer to the above-mentioned description about the implementation detail in Fig. 1 and Fig. 2.

The embodiment of the present invention also records a kind of computer-readable storage medium, stores computer executable instructions in described computer-readable storage medium, and described computer executable instructions is for performing the interference processing method shown in Fig. 1, Fig. 2 or Fig. 6.

The embodiment of the present invention also records a kind of base station, as shown in Figure 7, comprising:

Dispensing unit 71, overlaps mutingRE resource for configuring N;

Allocation units 72, the N for distributing described configuration for M interfered cell overlaps the mutingRE resource in mutingRE resource;

First communication unit 73, for informing to terminal by the downlink transfer parameter information of a described M interfered cell; Wherein,

Described N overlaps mutingRE resource and is used for determining to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing for described terminal; Described downlink transfer parameter information is used for eliminating needing to carry out disturbing the interfered cell of eliminating/suppressing to carry out interference for described terminal; M and N is positive integer.

As an execution mode, in a described M interfered cell, the downlink transfer parameter information of any one interfered cell comprises following information one of at least:

The Physical Cell Identifier of described interfered cell;

The CRS port of described interfered cell;

The MBSFN sub-frame configuration of described interfered cell;

The CRS of described interfered cell and data power ratio relevant parameter P _b;

The CRS of described interfered cell and data power ratio relevant parameter P _aspan;

The system bandwidth of described interfered cell;

The circulating prefix-length of described interfered cell;

The instruction whether synchronous with described Terminal Service community of described interfered cell;

The initial OFDM symbol position of downlink data in a subframe of described interfered cell;

The TM scope used is supported in described interfered cell;

The scope of the DMRS virtual channel identification VCID used is supported in described interfered cell;

The resource distribution mode used is supported in described interfered cell;

The resource allocation unit size of described interfered cell;

The resource allocation information of described interfered cell zero energy/non-zero power CSI-RS.

As an execution mode, described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of DMRS port 9/10/12/14 one or more.

As an execution mode, described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of CSI-RS port one or more.

As an execution mode, described N overlaps arbitrary cover mutingRE resource in mutingRE resource and is made up of two groups of discrete resource unit group, and described two groups of discrete resource unit group correspondences are positioned on the 1st PRB and the 2nd PRB of a Physical Resource Block PRB centering; Further,

Described resource unit group is made up of one or more Resource Units.

As an execution mode, arbitrary cover mutingRE resource that described N overlaps in mutingRE resource is made up of at least one Resource Unit outside following Resource Unit:

Support the Resource Unit being configured to CRS port; Support the Resource Unit being configured to CSI-RS port; Support the Resource Unit being configured to DMRS port 7/8/11/13; Support the OFDM symbol being configured to physical downlink control channel PDCCH.

As an execution mode, described allocation units 72, also according to the Physical Cell Identifier of described interfered cell, for a set of mutingRE resource in described N cover mutingRE resource is distributed in any one interfered cell in a described M interfered cell.

As an execution mode, described allocation units 72 comprise (not shown in Fig. 7):

First numbering subelement, is numbered 1 to N for overlapping mutingRE resource to described N according to preset order;

First determines subelement, for determining that the Physical Cell Identifier of each interfered cell in a described M interfered cell is to the value i of N remainder number;

Distribute subelement, (i+1) that overlap in mutingRE resource for configuring described N for described interfered cell overlaps mutingRE resource; Wherein, i is nonnegative integer.

As an execution mode, the mutingRE resource that described M distributes an interfered cell, for determining following information for described terminal: described interfered cell sends zero energy signal in distributed mutingRE resource, and maps downlink data according to the mode of rate-matched in distributed mutingRE resource.

As an execution mode, described first communication unit 73, also for after the downlink transfer parameter information of M interfered cell is informed to terminal, to the enable mark of NAICS of interfered cell described in described terminal notification; Wherein, whether the enable mark of described NAICS is enable for the mutingRE resource indicating described interfered cell to distribute to terminal.

As an execution mode, when the enable mark of NAICS of described interfered cell indicates the mutingRE resource distributing to described interfered cell enable, the enable mark of described NAICS is for determining following information for described terminal: described interfered cell sends zero energy signal on the resource location that distributed mutingRE resource is corresponding, and in distributed mutingRE resource, maps downlink data according to the mode of rate-matched.

As an execution mode, the mutingRE resource that in a described M interfered cell, arbitrary interfered cell is distributed, is mapped in whole system bandwidth resources of described interfered cell in units of the resource allocation unit of the downlink data of described interfered cell.

In practical application, described first communication unit 73 can be realized by the Receiver And Transmitter in base station; Described dispensing unit 71, allocation units 72 can by the central processing unit (CPU in base station, CentralProcessingUnit), digital signal processor (DSP, DigitalSignalProcessor) or field programmable gate array (FPGA, FieldProgrammableGateArray) realize.

The embodiment of the present invention also records a kind of terminal, as shown in Figure 8, comprising:

Second communication unit 81, for receiving the downlink transfer parameter information of M interfered cell;

Based on described configuration information, first determining unit 82, for determining that N overlaps the configuration information of mutingRE resource, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource;

Second determining unit 83, for distributing Received signal strength on resource location corresponding to mutingRE resource by the institute of each interfered cell in a described M interfered cell, determines the interfered cell needing in a described M interfered cell to carry out interference elimination/suppression;

Interference processing unit 84, for the downlink transfer parameter information according to the described interfered cell determined corresponding in described downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from the described interfered cell determined, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

As an execution mode, in a described M interfered cell, the downlink transfer parameter information of any one interfered cell comprises following information one of at least:

The Physical Cell Identifier of described interfered cell;

The community own reference signal CRS port of described interfered cell;

The MBSFN sub-frame configuration of described interfered cell;

The CRS of described interfered cell and data power ratio relevant parameter P _b;

The CRS of described interfered cell and data power ratio relevant parameter P _aspan;

The system bandwidth of described interfered cell;

The circulating prefix-length of described interfered cell;

The instruction whether synchronous with described Terminal Service community of described interfered cell;

The initial OFDM symbol position of downlink data in a subframe of described interfered cell;

Described interfered cell allows the TM scope used;

Described interfered cell allows the scope of the DMRS virtual channel identification VCID used;

Described interfered cell allows the resource distribution mode used;

The resource allocation unit size of described interfered cell;

The resource allocation information of described interfered cell zero energy/non-zero power CSI-RS.

As an execution mode, described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of DMRS port 9/10/12/14 one or more.

As an execution mode, described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of CSI-RS port one or more.

As an execution mode, described N overlaps arbitrary cover mutingRE resource in mutingRE resource and is made up of two groups of discrete resource unit group, and described two groups of discrete resource unit group correspondences are positioned on the 1st PRB and the 2nd PRB of a PRB centering; Further,

Described resource unit group is made up of one or more Resource Units.

As an execution mode, arbitrary cover mutingRE resource that described N overlaps in mutingRE resource is made up of at least one Resource Unit outside following Resource Unit:

Support the Resource Unit being configured to CRS port; Support the Resource Unit being configured to CSI-RS port; Support the Resource Unit being configured to DMRS port 7/8/11/13; Support the OFDM symbol being configured to physical downlink control channel PDCCH.

As an execution mode, described first determining unit 82, also for the Physical Cell Identifier according to a described M interfered cell, determines the mutingRE resource that in a described M interfered cell, each interfered cell is distributed.

As an execution mode, described first determining unit 82 comprises (not shown in Fig. 8):

Second numbering subelement is 1 to N for being numbered according to preset order described N cover mutingRE resource;

Second determines subelement, for determining that the Physical Cell Identifier of each interfered cell in a described M interfered cell is to the value i of N remainder number;

3rd determines subelement, for determining that the mutingRE resource of distributing described interfered cell is that (i+1) that described N overlaps in mutingRE resource overlaps mutingRE resource; Wherein, i is nonnegative integer.

As an execution mode, described second determining unit 83, also for when determining the mutingRE resource that a described M interfered cell is distributed, determine that described interfered cell sends zero energy signal on the resource location that distributed mutingRE resource is corresponding, and in distributed mutingRE resource, map downlink data according to the mode of rate-matched.

As an execution mode, described second communication unit 81, the enable mark of the NAICS also for receiving described interfered cell;

Described second determining unit 83, also determine that described second communication unit 81 receives the enable mark of NAICS of corresponding described interfered cell for working as, and the described NAICS enable mark instruction described interfered cell mutingRE resource of distributing enable time, determine that the interfered cell of the enable mark correspondence of described NAICS sends zero energy signal in distributed mutingRE resource, and described interfered cell maps downlink data according to the mode of rate-matched in distributed mutingRE resource.

As an execution mode, described first determining unit 82, also in units of the resource allocation unit of described interfered cell, determines the mutingRE resource of distributing described interfered cell.

In practical application, described second communication unit 81 can be realized by the Receiver And Transmitter in terminal; Described first determining unit 82, second determining unit 83, interference processing unit 84 can be realized by CPU, DSP or the FPGA in terminal.

The embodiment of the present invention also records a kind of interference treatment system, as shown in Figure 9, comprises base station 91 and terminal 92; Wherein,

Described base station 91, the N for configuring for M interfered cell overlaps the mutingRE resource in mutingRE resource; The downlink transfer parameter information of a described M interfered cell is informed to terminal 92;

Based on described configuration information, described terminal 92, for determining that N overlaps the configuration information of mutingRE resource, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource;

Received signal strength on the resource location that the mutingRE resource of being distributed by each interfered cell in a described M interfered cell is corresponding, determines to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing;

According to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

Described base station 91, also for the Physical Cell Identifier according to described interfered cell, for a set of mutingRE resource in described N cover mutingRE resource is distributed in any one interfered cell in a described M interfered cell.

Described base station 91, is also numbered 1 to N for overlapping mutingRE resource to described N according to preset order;

Determine that the Physical Cell Identifier of each interfered cell in a described M interfered cell is to the value i of N remainder number;

(i+1) that distribute in described N cover mutingRE resource for described interfered cell overlaps mutingRE resource; Wherein, i is nonnegative integer.

Described base station 91, also for notifying that to described terminal 92 the enable mark of NAICS is eliminated/suppressed in the network assistance interference of described interfered cell;

Wherein, whether the enable mark of described NAICS is enable for the mutingRE resource indicating described interfered cell to distribute to terminal 92.

Wherein, the mutingRE resource that in a described M interfered cell, arbitrary interfered cell is distributed, is mapped in whole system bandwidth resources of described interfered cell in units of the resource allocation unit of the downlink data of described interfered cell.

Described terminal 92, also for the Physical Cell Identifier according to described interfered cell, determines the mutingRE resource distributing to a described M interfered cell.

Described terminal 92 is also 1 to N for overlapping to described N that mutingRE resource is numbered according to preset order;

Determine that the Physical Cell Identifier of each interfered cell in a described M interfered cell is to the value i of N remainder number;

Determine that the mutingRE resource of distributing described interfered cell is that (i+1) that described N overlaps in mutingRE resource overlaps mutingRE resource; Wherein, i is nonnegative integer.

Described terminal 92, also for when determining the mutingRE resource that a described M interfered cell is distributed, determine that described interfered cell sends zero energy signal in distributed mutingRE resource, and in distributed mutingRE resource, map downlink data according to the mode of rate-matched.

Wherein, in a described M interfered cell, the downlink transfer parameter information of any one interfered cell also comprises:

Whether the enable mark of NAICS, be used to indicate the mutingRE resource distributing to described interfered cell and be enabled; Described terminal 92, also for working as the enable mark of NAICS receiving described interfered cell, and the described NAICS enable mark instruction described interfered cell mutingRE resource of distributing enable time, determine that described interfered cell sends zero energy signal in distributed mutingRE resource, and described interfered cell maps downlink data according to the mode of rate-matched in distributed mutingRE resource.

Describedly determine that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource, comprising:

In units of the resource allocation unit of the downlink data of described interfered cell, determine that N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource.

Described terminal 92, also in units of the resource allocation unit of the downlink data of described interfered cell, determines that N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource.

Below in conjunction with embody rule scene, the technical scheme that the embodiment of the present invention is recorded is described.

Figure 10 is the interference scene schematic diagram that in the embodiment of the present invention, multiple terminal comprises downlink data, and Tu10Zhong, base station A include 3 communities: A1, A2 and A3, and base station B includes 3 communities: B1, B2 and B3.The Serving cell of terminal UE 1 and UE2 is A1, and the Serving cell of terminal UE 3 is A2, and the Serving cell of terminal UE 4 is A3; The Serving cell of terminal UE 5 is B1, and the Serving cell of terminal UE 6 is B2.

The Physical Cell Identifier (CellID) supposing community A1 is 1, the Physical Cell Identifier of community A2 is 2, and the Physical Cell Identifier of community A3 is 3, and the Physical Cell Identifier of community B1 is 4, the Physical Cell Identifier of community B2 is 5, and the Physical Cell Identifier of community B3 is 6.

Suppose to take UE1 as target terminal.

Embodiment 1

Network side configuration 6 cover mutingRE resources, and be numbered, such as, shown in Fig. 4 a according to the order appointed with end side.

Suppose in scene shown in Figure 10, network side to the downlink transfer parameter information of UE1 notifying cell A2, A3, B1, B2, B3, comprise Physical Cell Identifier, CRS port, MBSFN sub-frame configuration, CRS and data power ratio parameter P_B, the span of CRS and data power ratio parameter P_A, the transmission mode TM scope allowing to use, allow the information such as the DMRSVCID scope that uses.

Network side is respectively different cell allocation mutingRE resources according to Physical Cell Identifier, is Physical Cell Identifier and meets the cell allocation (i+1) that CellIDmod6 equals i and overlap mutingRE resource.Such as community A2 distributes the 3rd cover mutingRE resource, for community A3 distributes the 4th cover mutingRE resource, for community B1 distributes the 5th cover mutingRE resource, for community B2 configures the 6th cover mutingRE resource, for community B3 distributes the 1st cover mutingRE resource.So community A2 sends zero energy signal in the 3rd cover mutingRE resource position up-downgoing, and if there is downlink data in community A2, downlink data maps according to the mode of rate-matched on the 3rd cover mutingRE resource position; Community A3 sends zero energy signal in the 4th cover mutingRE resource position up-downgoing, and if there is downlink data in community A3, downlink data maps according to the mode of rate-matched on the 3rd cover mutingRE resource position; Community B1 sends zero energy signal in the 5th cover mutingRE resource position up-downgoing, and if there is downlink data in community B1, downlink data maps according to the mode of rate-matched on the 5th cover mutingRE resource position; Community B2 sends zero energy signal in the 6th cover mutingRE resource position up-downgoing, and if there is downlink data in community B2, downlink data maps according to the mode of rate-matched on the 6th cover mutingRE resource position; Community B3 sends zero energy signal in the 1st cover mutingRE resource position up-downgoing, and if there is downlink data in community B3, downlink data maps according to the mode of rate-matched on the 1st cover mutingRE resource position.

UE1 receives the downlink transfer parameter information of community A2, A3, B1, B2, B3, with obtain the Physical Cell Identifier of each community, CRS port, MBSFN sub-frame configuration, CRS and data power ratio parameter P_B, the span of CRS and data power ratio parameter P_A, the transmission mode TM scope allowing to use, allow the information such as the DMRSVCID scope that uses.

UE1 confirms according to the Physical Cell Identifier of community A2, A3, B1, B2, B3 the mutingRE resource distributing to A2, A3, B1, B2, B3 respectively.UE1 determines mutingRE resource according to the mode of Physical Cell Identifier remainder.Such as, the Physical Cell Identifier of community A2 is 2, equals 2 to 6 (total mutingRE resource tricks of network side configuration) remainder number, and therefore UE1 thinks that community A2 is configured with the 3rd cover mutingRE resource; The Physical Cell Identifier of community A3 is 3, equals 3 to 6 remainder numbers, and therefore UE1 thinks that community A3 is configured with the 4th cover mutingRE resource; Similarly, UE1 confirms that community B1, B2 and B3 are configured with the 5th, 6 and 1 cover mutingRE resource respectively.

So UE1, according to the signal that the 3rd cover mutingRE resource location receives, obtains and carries out disturbing the Received signal strength (the first Received signal strength) after eliminating to the interference signal of community A2; According to the signal that the 4th cover mutingRE resource location receives, obtain and the interference signal of community A3 is carried out disturbing the Received signal strength (the second Received signal strength) after eliminating; According to the signal that the 5th cover mutingRE resource location receives, obtain and the interference signal of community B1 is carried out disturbing the Received signal strength (the 3rd Received signal strength) after eliminating; According to the signal that the 6th cover mutingRE resource location receives, obtain and the interference signal of community B2 is carried out disturbing the Received signal strength (the 4th Received signal strength) after eliminating; According to the Received signal strength on the 1st cover mutingRE resource location, obtain and the interference signal of community B3 is carried out disturbing the Received signal strength (the 5th Received signal strength) after eliminating.

UE1 judges to need to carry out disturbing the community of eliminating/suppressing according to these five kinds of Received signal strength, such as compare the power of these five kinds of Received signal strength, power reckling represents best to Received signal strength performance after the elimination of this area interference, therefore determines that this interfered cell is the interfered cell needing to carry out disturbing elimination/suppression.

Suppose to judge that community A2 needs to carry out disturbing the community of eliminating/suppressing according to these five kinds of Received signal strength, UE1 carries out blind Detecting by according to the parameter of obtained community A2 downlink transfer to the parameter of the interference signal from community A2, wherein blind Detecting range reference obtain the downlink transfer parameter of community A2, the blind Detecting of UE1 to the parameter of interference signal comprises the downlink transfer pattern TM of the described interference signal of this interference signal, the P_A that the CRS of interference signal is relevant to the power ratio of data, the transmission number of plies RI of interference signal, the precoding weights (if interference signal is based on CRS transmission) of interference signal, the DMRS port (if interference signal is based on DMRS transmission) of interference signal, the DMRS scrambling code identification (if interference signal is based on DMRS transmission) of interference signal, DMRS virtual subdistrict mark VCID (if interference signal is based on the DMRS transmission) information etc. of interference signal.

The parameter of the interference signal from community A2 that UE1 obtains based on the downlink transfer parameter of received community A2 and blind Detecting, carries out interference to the interference signal from interfered cell A2 and eliminates/suppression.

Embodiment 2

Network side configuration 6 cover mutingRE resources, and be numbered, such as, shown in Fig. 4 a according to the order appointed with end side.

Suppose in scene shown in Figure 10, network side to the downlink transfer parameter information of UE1 notifying cell A2, A3, B1, B2, B3, the information such as comprise Physical Cell Identifier, CRS port, MBSFN sub-frame configuration, the span of CRS and data power ratio parameter P_B, CRS and data power ratio parameter P_A, the transmission mode TM scope allowing to use, the DMRSVCID scope allowing to use, NAICS identify.Wherein NAICS mark is used to indicate the whether enable mutingRE resource distribution in current area.

Whether network side determines to this cell allocation mutingRE resource according to the NAICS mark of different districts.Suppose that the enable mark of the NAICS of community B2 and B3 is characterized by mutingRE resource not enable, then network side Bu Dui community B2 and B3 distributes mutingRE resource.Network side distributes mutingRE resource according to Physical Cell Identifier to community A2, A3 and B1, is Physical Cell Identifier and meets the cell allocation (i+1) that CellIDmod6 equals i and overlap mutingRE resource.Such as community A2 distributes the 3rd cover mutingRE resource, for community A3 distributes the 4th cover mutingRE resource, for community B1 distributes the 5th cover mutingRE resource.So community A2 sends zero energy signal in the 3rd cover mutingRE resource position up-downgoing, and if there is downlink data in community A2, downlink data maps according to the mode of rate-matched on the 3rd cover mutingRE resource position; Community A3 sends zero energy signal in the 4th cover mutingRE resource position up-downgoing, and if there is downlink data in community A3, downlink data maps according to the mode of rate-matched on the 4th cover mutingRE resource position; Community B1 sends zero energy signal in the 5th cover mutingRE resource position up-downgoing, and if there is downlink data in community B1, downlink data maps according to the mode of rate-matched on the 5th cover mutingRE resource position.

UE1 receives the downlink transfer parameter information of community A2, A3, B1, B2, B3, with obtain the Physical Cell Identifier of each community, CRS port, MBSFN sub-frame configuration, CRS and data power ratio parameter P_B, the span of CRS and data power ratio parameter P_A, the transmission mode TM scope allowing to use, the DMRSVCID scope allowing to use, NAICS the information such as to identify.

According to NAICS identification information, UE1 knows that network side Zhi Wei community A2, A3, B1 are assigned with mutingRE resource.UE1 confirms according to the Physical Cell Identifier of community A2, A3, B1 the mutingRE resource distributing to A2, A3, B1 respectively.UE1 determines mutingRE resource according to the mode of Physical Cell Identifier remainder.Such as, the Physical Cell Identifier of community A2 is 2, and equal 2 to 6 (total tricks of network side configuration mutingRE resource) remainder number, therefore UE1 thinks that community A2 is configured with the 3rd cover mutingRE resource; The Physical Cell Identifier of community A3 is 3, equals 3 to 6 remainder numbers, and therefore UE1 thinks that community A3 is configured with the 4th cover mutingRE resource; Similarly, UE1 confirms that community B1 is configured with the 5th cover mutingRE resource.

So UE1 obtains according to the Received signal strength on the 3rd cover mutingRE resource location and carries out disturbing the Received signal strength (the first Received signal strength) after eliminating to the interference signal of community A2; Obtain according to the Received signal strength on the 4th cover mutingRE resource location and the interference signal of community A3 is carried out disturbing the Received signal strength (the second Received signal strength) after eliminating; Obtain according to the Received signal strength on the 5th cover mutingRE resource location and the interference signal of community B1 is carried out disturbing the Received signal strength (the 3rd Received signal strength) after eliminating; Obtained by the mode of blind Detecting and the interference signal of community B2 is carried out disturbing the Received signal strength (the 4th Received signal strength) after eliminating; Obtained by the mode of blind Detecting and the interference signal of community B3 is carried out disturbing the Received signal strength (the 5th Received signal strength) after eliminating.

UE1 judges to need to carry out disturbing the community of eliminating/suppressing according to these five kinds of Received signal strength, suppose according to these five kinds of Received signal strength, UE1 judges that community A2 needs to carry out disturbing the community of eliminating/suppressing, UE1 carries out blind Detecting by according to the parameter of obtained community A2 downlink transfer to the parameter of the interference signal from community A2, wherein blind Detecting range reference obtain the downlink transfer parameter of community A2, the blind Detecting of UE1 to the parameter of interference signal comprises the downlink transfer pattern TM of the described interference signal of this interference signal, the P_A that the CRS of interference signal is relevant to the power ratio of data, the transmission number of plies RI of interference signal, the precoding weights (if interference signal is based on CRS transmission) of interference signal, the DMRS port (if interference signal is based on DMRS transmission) of interference signal, the DMRS scrambling code identification (if interference signal is based on DMRS transmission) of interference signal, DMRS virtual subdistrict mark VCID (if interference signal is based on the DMRS transmission) information etc. of interference signal, and interference elimination/suppression is carried out to the interference signal from interfered cell A2.

The parameter of the interference signal from community A2 that UE1 obtains based on the downlink transfer parameter of received community A2 and blind Detecting, carries out interference to the interference signal from interfered cell A2 and eliminates/suppression.

Embodiment 3

Network side configuration 6 cover mutingRE resources, and be numbered, such as, shown in Fig. 4 a according to the order appointed with end side.

Suppose in scene shown in Figure 10, by large scale information, first the base station of community A1 determines that the interfered cell of UE1 may be A2, A3, B1, namely community B2, B3 is distant or RSRP is less from Serving cell A1, is therefore thought that weak jamming community even can be left in the basket by the base station of community A1.Although therefore at this moment community A1 can obtain A2, A3, B1, B2, B3 downlink transfer parameter correlation information separately, the downlink transfer parameter information of A1 Jin Huijiang community, community A2, A3, B1 informs UE1.

Base station, to the downlink transfer parameter information of UE1 notifying cell A2, A3, B1, comprises Physical Cell Identifier, CRS port, MBSFN sub-frame configuration, the span of CRS and data power ratio parameter P_B, CRS and data power ratio parameter P_A, the transmission mode TM scope allowing to use, allows the information such as the DMRSVCID scope that uses; Wherein also can comprise NAICS identification information.

Suppose that NAICS mark is enable, network side is respectively different cell allocation mutingRE resources according to Physical Cell Identifier, is Physical Cell Identifier and meets the cell configuration (i+1) that CellIDmod6 equals i and overlap mutingRE resource.Such as community A2 distributes the 3rd cover mutingRE resource, for community A3 distributes the 4th cover mutingRE resource, for community B1 distributes the 5th cover mutingRE resource.So community A2 sends zero energy signal in the 3rd cover mutingRE resource position up-downgoing, and if there is downlink data in community A2, downlink data maps according to the mode of rate-matched on the 3rd cover mutingRE resource position; Community A3 sends zero energy signal in the 4th cover mutingRE resource position up-downgoing, and if there is downlink data in community A3, downlink data maps according to the mode of rate-matched on the 4th cover mutingRE resource position; Community B1 sends zero energy signal in the 5th cover mutingRE resource position up-downgoing, and if there is downlink data in community B1, downlink data maps according to the mode of rate-matched on the 5th cover mutingRE resource position.

UE1 receives the downlink transfer parameter information of community A2, A3, B1, to obtain the Physical Cell Identifier of each community, CRS port, MBSFN sub-frame configuration, the span of CRS and data power ratio parameter P_B, CRS and data power ratio parameter P_A, the transmission mode TM scope allowing to use, to allow the information such as the DMRSVCID scope that uses.

UE1 confirms according to the Physical Cell Identifier of community A2, A3, B1 the mutingRE resource distributing to A2, A3, B1 respectively.UE1 determines mutingRE resource according to the mode of Physical Cell Identifier remainder.Such as, the Physical Cell Identifier of community A2 is 2, equals 2 to 6 (tricks that the mutingRE resource that network side configures is total) remainder number, and therefore UE1 thinks that community A2 is configured with the 3rd cover mutingRE resource; The Physical Cell Identifier of community A3 is 3, equals 3 to 6 remainder numbers, and therefore UE1 thinks that community A3 is configured with the 4th cover mutingRE resource; Similarly, UE1 confirms that community B1 is configured with the 5th cover mutingRE resource.

So UE1 obtains according to the Received signal strength on the 3rd cover mutingRE resource location and carries out disturbing the Received signal strength (the first Received signal strength) after eliminating to the interference signal of community A2; Obtain according to the Received signal strength on the 4th cover mutingRE resource location and the interference signal of community A3 is carried out disturbing the Received signal strength (the second Received signal strength) after eliminating; Obtain according to the Received signal strength on the 5th cover mutingRE resource location and the interference signal of community B1 is carried out disturbing the Received signal strength (the 3rd Received signal strength) after eliminating.

UE1 judges to need to carry out disturbing the community of eliminating/suppressing according to these five kinds of Received signal strength, such as compare the power of these three kinds of Received signal strength, power reckling represents best to Received signal strength performance after the elimination of this area interference, therefore determines that this interfered cell is the interfered cell needing to carry out disturbing elimination/suppression.

Suppose to judge that community A2 needs to carry out disturbing the community of eliminating/suppressing according to these three kinds of Received signal strength, UE1 carries out blind Detecting by according to the parameter of obtained community A2 downlink transfer to the parameter of the interference signal from community A2, wherein blind Detecting range reference obtain the downlink transfer parameter of community A2, the blind Detecting of UE1 to the parameter of interference signal comprises the downlink transfer pattern TM of the described interference signal of this interference signal, the P_A that the CRS of interference signal is relevant to the power ratio of data, the transmission number of plies RI of interference signal, the precoding weights (if interference signal is based on CRS transmission) of interference signal, the DMRS port (if interference signal is based on DMRS transmission) of interference signal, the DMRS scrambling code identification (if interference signal is based on DMRS transmission) of interference signal, DMRS virtual subdistrict mark VCID (if interference signal is based on the DMRS transmission) information etc. of interference signal.

The parameter of the interference signal from community A2 that UE1 obtains based on the downlink transfer parameter of received community A2 and blind Detecting, carries out interference to the interference signal from interfered cell A2 and eliminates/suppression.

Embodiment 4

Network side configuration 6 cover mutingRE resources, and be numbered, such as, shown in Fig. 4 a according to the order appointed with end side.

Suppose in scene shown in Figure 10, by large scale information, first the base station of community A1 determines that the interfered cell of UE1 may be A2, A3, B1, namely community B2, B3 is distant or RSRP is less from Serving cell A1, is therefore thought that weak jamming community even can be left in the basket by the base station of community A1.Although therefore at this moment community A1 can obtain A2, A3, B1, B2, B3 downlink transfer parameter correlation information separately, the downlink transfer parameter information of A1 Jin Huijiang community, community A2, A3, B1 informs UE1.

Base station, to the downlink transfer parameter information of UE1 notifying cell A2, A3, B1, comprises Physical Cell Identifier, CRS port, MBSFN sub-frame configuration, the span of CRS and data power ratio parameter P_B, CRS and data power ratio parameter P_A, the transmission mode TM scope allowing to use, allows the information such as the DMRSVCID scope that uses.Wherein also may comprise NAICS identification information.

Suppose that NAICS mark is enable, network side is respectively different cell allocation mutingRE resources according to Physical Cell Identifier, is Physical Cell Identifier and meets the cell allocation (i+1) that CellIDmod6 equals i and overlap mutingRE resource.Such as community A2 configures the 3rd cover mutingRE resource, for community A3 configures the 4th cover mutingRE resource, for community B1 distributes the 5th cover mutingRE resource.So community A2 sends zero energy signal in the 3rd cover mutingRE resource position up-downgoing, and if there is downlink data in community A2, downlink data maps according to the mode of rate-matched on the 3rd cover mutingRE resource position; Community A3 sends zero energy signal in the 4th cover mutingRE resource position up-downgoing, and if there is downlink data in community A3, downlink data maps according to the mode of rate-matched on the 4th cover mutingRE resource position; Community B1 sends zero energy signal in the 5th cover mutingRE resource position up-downgoing, and if there is downlink data in community B1, downlink data maps according to the mode of rate-matched on the 5th cover mutingRE resource position.

UE1 receives the downlink transfer parameter information of community A2, A3, B1, with obtain the Physical Cell Identifier of each community, CRS port, MBSFN sub-frame configuration, CRS and data power ratio parameter P_B, the span of CRS and data power ratio parameter P_A, the transmission mode TM scope allowing to use, allow the information such as the DMRSVCID scope that uses.

UE1 confirms according to the Physical Cell Identifier of community A2, A3, B1 the mutingRE resource distributing to A2, A3, B1 respectively.UE1 determines mutingRE resource according to the mode of Physical Cell Identifier remainder.Such as, the Physical Cell Identifier of community A2 is 2, equals 2 to 6 (tricks that the mutingRE resource that network side configures is total) remainder number, and therefore UE1 thinks that community A2 is configured with the 3rd cover mutingRE resource; The Physical Cell Identifier of community A3 is 3, equals 3 to 6 remainder numbers, and therefore UE1 thinks that community A3 is configured with the 4th cover mutingRE resource; Similarly, UE1 confirms that community B1 is configured with the 5th cover mutingRE resource.

So UE1 obtains according to the Received signal strength on the 3rd cover mutingRE resource location and carries out disturbing the Received signal strength (the first Received signal strength) after eliminating to the interference signal of community A2; Obtain according to the Received signal strength on the 4th cover mutingRE resource location and the interference signal of community A3 is carried out disturbing the Received signal strength (the second Received signal strength) after eliminating; Obtain according to the Received signal strength on the 5th cover mutingRE resource location and the interference signal of community B1 is carried out disturbing the Received signal strength (the 3rd Received signal strength) after eliminating.Meanwhile, UE1 obtains the Received signal strength (the 4th Received signal strength) not carrying out any interference elimination/suppression according to the Received signal strength on non-mutingRE resource location.

According to these four kinds of Received signal strength, UE1 judges whether that needs carry out interference and eliminate/suppress, and need to carry out disturbing the community of eliminating/suppressing.Such as compare this first to the 3rd received signal power and whether the 4th received signal power difference has exceeded predetermined threshold, if do not exceed predetermined threshold, and UE1 thinks that its transfer of data does not exist strong interferers, so determine not carry out strong jamming elimination/suppression process (such as not adopting the NAICS senior receiver treatment technologies such as E-MMSE-IRC, SL-IC, R-ML), or conventionally AF panel is carried out to interference, such as, adopt traditional MMSE or MMSE-IRC receiver treatment technology.Otherwise, UE1 is judged as that needs carry out interference and eliminate/suppress process, such as compare the power of power to the 3rd Received signal strength of the first Received signal strength, because the interfered cell that power is minimum disturbs the rear Received signal strength performance of elimination best, therefore determine that this interfered cell is the interfered cell needing to carry out disturbing elimination/suppression.

Suppose to judge that community A2 needs to carry out disturbing the community of eliminating/suppressing according to these five kinds of Received signal strength, UE1 carries out blind Detecting by according to the parameter of obtained community A2 downlink transfer to the parameter of the interference signal from community A2, wherein blind Detecting range reference obtain the downlink transfer parameter of community A2, the blind Detecting of UE1 to the parameter of interference signal comprises the downlink transfer pattern TM of the described interference signal of this interference signal, the P_A that the CRS of interference signal is relevant to the power ratio of data, the transmission number of plies RI of interference signal, the precoding weights (if interference signal is based on CRS transmission) of interference signal, the DMRS port (if interference signal is based on DMRS transmission) of interference signal, the DMRS scrambling code identification (if interference signal is based on DMRS transmission) of interference signal, DMRS virtual subdistrict mark VCID (if interference signal is based on the DMRS transmission) information etc. of interference signal.

The parameter of the interference signal from community A2 that UE1 obtains based on the downlink transfer parameter of received community A2 and blind Detecting, carries out interference to the interference signal from interfered cell A2 and eliminates/suppression.

Embodiment 5

Suppose that network side and end side agreement always co-exist in configurable mutingRE resource and comprise 6 covers, and according to predetermined mode, this 6 cover mutingRE resource is numbered, such as, shown in Fig. 4 a.

Suppose that Serving cell, terminal place exists 3 interfered cells, be respectively interfered cell 1, interfered cell 2, interfered cell 3.

Each self-corresponding downlink data transmission parameter correlation information is passed to base station in service sector by minizone back haul link (backhual) such as X2 interface by these 3 interfered cells respectively, and base station in service sector gives all terminals by Cell-specific high-level signaling broadcast announcement.Wherein each cell downlink data transmission parameters relevant information comprise this cell downlink system bandwidth, downlink cycle prefix length, CellID, CRS port, MBSFN sub-frame configuration, allow use downlink transfer pattern TM scope, allow use the information such as DMRSVCID scope, CSI-RS configuration in one or more.

Suppose that the CellIDmod6 of Serving cell equals 0, the CellIDmod6 of interfered cell 1 equals 3, the CellIDmod6 of interfered cell 2 equals 2, the CellIDmod6 of interfered cell 3 equals 4, then overlap MutingRE Resourse Distribute to Serving cell, interfered cell 1, interfered cell 2 and interfered cell 3 by the 1st, 4,3,5 respectively, as shown in Figure 11 a ~ Figure 11 d.

So terminal utilizes the Received signal strength at the 4th cover mutingRE resource location place can obtain the reception data signal power after the user in interfered cell 1 disturbed elimination; Terminal utilizes the Received signal strength at the 3rd cover mutingRE resource location place can obtain the reception data signal power after the user in interfered cell 2 disturbed elimination; The user that terminal utilizes the Received signal strength at the 5th cover mutingRE resource location place can obtain in the future self-interference community 3 disturb elimination after reception data signal power.

Corresponding that interfered cell user time the strongest for the reception data signal power selected after interference elimination is need to carry out disturbing the interfered cell user eliminating/suppress by terminal.

Terminal carries out based on determined needs disturbing the downstream transmission signals parameter configuration of the interfered cell of eliminating/suppressing to carry out blind Detecting to other relevant information of interference signal.What wherein the interference signal relevant information of blind Detecting comprised in the information such as downlink transfer pattern TM, RI (if interference signal based on CRS transmission), precoding weights (if interference signal is based on CRS transmission), DMRS port (if interference signal is based on DMRS transmission), DMRS scrambler ID (if interference signal is based on DMRS transmission), DMRSVCID (if interference signal is based on DMRS transmission), PDSCH original position of interference signal is one or more.

The interference signal parameters information that terminal utilizes the interference signal parameters configuration information that receives from base station and blind Detecting to obtain, carry out interference based on senior receiver (such as E-MMSE-IRC, SLIC, R-ML etc.) technology to this interference signal to eliminate/suppress, and the data-signal after eliminating interference/suppress carries out demodulation, decoding.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of hardware embodiment, software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (49)

1. disturb a processing method, it is characterized in that, described method comprises:

Configuration N overlaps silent resource unit mutingRE resource, is the mutingRE resource in the N cover mutingRE resource that M interfered cell configures;

The downlink transfer parameter information of a described M interfered cell is informed to terminal; Wherein,

Described N overlaps mutingRE resource and is used for determining to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing for described terminal; Described downlink transfer parameter information is used for eliminating needing to carry out disturbing the interfered cell of eliminating/suppressing to carry out interference for described terminal; M and N is positive integer.

2. method according to claim 1, is characterized in that, in a described M interfered cell, the downlink transfer parameter information of any one interfered cell comprises following information one of at least:

The Physical Cell Identifier of described interfered cell;

The community own reference signal CRS port of described interfered cell;

The multicast single frequency network MBSFN sub-frame configuration of described interfered cell;

The CRS of described interfered cell and data power ratio relevant parameter P _b;

The CRS of described interfered cell and data power ratio relevant parameter P _aspan;

The system bandwidth of described interfered cell;

The circulating prefix-length of described interfered cell;

The instruction whether synchronous with described Terminal Service community of described interfered cell;

The initial orthogonal frequency division multiplex OFDM character position of downlink data in a subframe of described interfered cell;

The transmission mode TM scope used is supported in described interfered cell;

The scope of the demodulated reference signal DMRS virtual channel identification VCID used is supported in described interfered cell;

The resource distribution mode used is supported in described interfered cell;

The resource allocation unit size of described interfered cell;

The resource allocation information of described interfered cell zero energy/non-zero power channel status instruction reference signal CSI-RS.

3. method according to claim 1, is characterized in that,

Described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of DMRS port 9/10/12/14 one or more.

4. method according to claim 1, is characterized in that,

Described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of CSI-RS port one or more.

5. method according to claim 1, is characterized in that,

Described N overlaps arbitrary cover mutingRE resource in mutingRE resource and is made up of two groups of discrete resource unit group, and described two groups of discrete resource unit group correspondences are positioned on the 1st PRB and the 2nd PRB of a Physical Resource Block PRB centering; Further,

Described resource unit group is made up of one or more Resource Units.

6. method according to claim 1, is characterized in that, arbitrary cover mutingRE resource that described N overlaps in mutingRE resource is made up of at least one Resource Unit outside following Resource Unit:

Support the Resource Unit being configured to CRS port; Support the Resource Unit being configured to CSI-RS port; Support the Resource Unit being configured to DMRS port 7/8/11/13; Support the OFDM symbol being configured to physical downlink control channel PDCCH.

7. method according to claim 1, is characterized in that, the described N configured for M interfered cell overlaps the mutingRE resource in mutingRE resource, comprising:

According to the Physical Cell Identifier of described interfered cell, for a set of mutingRE resource in described N cover mutingRE resource is distributed in any one interfered cell in a described M interfered cell.

8. method according to claim 7, is characterized in that, described a set of mutingRE resource of distributing for any one interfered cell in a described M interfered cell in described N cover mutingRE resource, comprising:

MutingRE resource is overlapped to described N and is numbered 1 to N according to preset order;

Determine that the Physical Cell Identifier of each interfered cell in a described M interfered cell is to the value i of N remainder number;

(i+1) that distribute in described N cover mutingRE resource for described interfered cell overlaps mutingRE resource; Wherein, i is nonnegative integer.

9. method according to claim 1, it is characterized in that, the mutingRE resource that described M distributes an interfered cell, for determining following information for described terminal: described interfered cell sends zero energy signal on the resource location that distributed mutingRE resource is corresponding, and maps downlink data according to the mode of rate-matched in distributed mutingRE resource.

10. method according to claim 1, is characterized in that, described method also comprises:

The enable mark of NAICS is eliminated/is suppressed in network assistance interference to interfered cell described in described terminal notification;

Wherein, whether the enable mark of described NAICS is enable for the mutingRE resource indicating described interfered cell to distribute to terminal.

11. methods according to claim 10, is characterized in that, when the enable mark of NAICS of described interfered cell indicates the mutingRE resource distributing to described interfered cell enable,

The enable mark of described NAICS is for determining following information for described terminal: described interfered cell sends zero energy signal in distributed mutingRE resource, and in distributed mutingRE resource, maps downlink data according to the mode of rate-matched.

12. methods according to any one of claim 1 to 11, is characterized in that,

The mutingRE resource that in a described M interfered cell, arbitrary interfered cell is distributed, is mapped in whole system bandwidth resources of described interfered cell in units of the resource allocation unit of the downlink data of described interfered cell.

13. 1 kinds of interference processing methods, it is characterized in that, described method comprises:

Determine that N overlaps the configuration information of silent resource unit mutingRE resource, determine that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource based on described configuration information;

By each interfered cell in a described M interfered cell distribute Received signal strength on resource location corresponding to mutingRE resource, determine to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing;

According to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

14. methods according to claim 13, is characterized in that, in a described M interfered cell, the downlink transfer parameter information of any one interfered cell comprises following information one of at least:

The Physical Cell Identifier of described interfered cell;

The community own reference signal CRS port of described interfered cell;

The multicast single frequency network MBSFN sub-frame configuration of described interfered cell;

The CRS of described interfered cell and data power ratio relevant parameter P _b;

The CRS of described interfered cell and data power ratio relevant parameter P _aspan;

The system bandwidth of described interfered cell;

The circulating prefix-length of described interfered cell;

The instruction whether synchronous with described Terminal Service community of described interfered cell;

The initial orthogonal frequency division multiplex OFDM character position of downlink data in a subframe of described interfered cell;

Described interfered cell allows the transmission mode TM scope used;

Described interfered cell allows the scope of the demodulated reference signal DMRS virtual channel identification VCID used;

Described interfered cell allows the resource distribution mode used;

The resource allocation unit size of described interfered cell;

The resource allocation information of described interfered cell zero energy/non-zero power channel status instruction reference signal CSI-RS.

15. methods according to claim 13, is characterized in that,

Described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of DMRS port 9/10/12/14 one or more.

16. methods according to claim 13, is characterized in that,

Described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of CSI-RS port one or more.

17. methods according to claim 13, is characterized in that,

Described N overlaps arbitrary cover mutingRE resource in mutingRE resource and is made up of two groups of discrete resource unit group, and described two groups of discrete resource unit group correspondences are positioned on the 1st PRB and the 2nd PRB of a Physical Resource Block PRB centering; Further,

Described resource unit group is made up of one or more Resource Units.

18. methods according to claim 13, is characterized in that, arbitrary cover mutingRE resource that described N overlaps in mutingRE resource is made up of at least one Resource Unit outside following Resource Unit:

Support the Resource Unit being configured to CRS port; Support the Resource Unit being configured to CSI-RS port; Support the Resource Unit being configured to DMRS port 7/8/11/13; Support the OFDM symbol being configured to physical downlink control channel PDCCH.

19. methods according to claim 13, is characterized in that, describedly determine that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource, comprising:

According to the Physical Cell Identifier of described interfered cell, determine the mutingRE resource distributing to a described M interfered cell.

20. methods according to claim 19, is characterized in that, determine that described N overlaps the mutingRE resource distributing to a described M interfered cell in mutingRE resource and comprises:

Being numbered according to preset order described N cover mutingRE resource is 1 to N;

Determine that the Physical Cell Identifier of each interfered cell in a described M interfered cell is to the value i of N remainder number;

Determine that the mutingRE resource of distributing described interfered cell is that (i+1) that described N overlaps in mutingRE resource overlaps mutingRE resource; Wherein, i is nonnegative integer.

21. methods according to claim 13, is characterized in that, when determining the mutingRE resource that a described M interfered cell is distributed, described method also comprises:

Determine that described interfered cell sends zero energy signal in distributed mutingRE resource, and in distributed mutingRE resource, map downlink data according to the mode of rate-matched.

22. methods according to claim 14, is characterized in that, in a described M interfered cell, the downlink transfer parameter information of any one interfered cell also comprises:

Whether the enable mark of NAICS, be used to indicate the mutingRE resource distributing to described interfered cell and be enabled.

23. methods according to claim 22, is characterized in that, when the enable mark of the NAICS receiving described interfered cell, and when the described NAICS enable mark instruction described interfered cell mutingRE resource of distributing is enable, described method also comprises:

Determine that described interfered cell sends zero energy signal in distributed mutingRE resource, and described interfered cell maps downlink data according to the mode of rate-matched in distributed mutingRE resource.

24., according to claim 13 to the method described in 23 any one, is characterized in that, describedly determine that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource, comprising:

In units of the resource allocation unit of the downlink data of described interfered cell, determine that N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource.

25. 1 kinds of interference processing methods, it is characterized in that, described method comprises:

The N that base station configures for M interfered cell overlaps the mutingRE resource in silent resource unit mutingRE resource; The downlink transfer parameter information of a described M interfered cell is informed to terminal;

Described terminal overlaps the configuration information of mutingRE resource according to determined described N, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource;

Described terminal distributes Received signal strength on resource location corresponding to mutingRE resource by the institute of each interfered cell in a described M interfered cell, determines the interfered cell needing in a described M interfered cell to carry out interference elimination/suppression;

Described terminal is according to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

26. 1 kinds of base stations, is characterized in that, described base station comprises:

Dispensing unit, overlaps silent resource unit mutingRE resource for configuring N;

Allocation units, the N for distributing described configuration for M interfered cell overlaps the mutingRE resource in mutingRE resource;

First communication unit, for informing to terminal by the downlink transfer parameter information of a described M interfered cell; Wherein,

Described N overlaps mutingRE resource and is used for determining to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing for described terminal; Described downlink transfer parameter information is used for eliminating needing to carry out disturbing the interfered cell of eliminating/suppressing to carry out interference for described terminal; M and N is positive integer.

27. base stations according to claim 26, is characterized in that, in a described M interfered cell, the downlink transfer parameter information of any one interfered cell comprises following information one of at least:

The Physical Cell Identifier of described interfered cell;

The community own reference signal CRS port of described interfered cell;

The multicast single frequency network MBSFN sub-frame configuration of described interfered cell;

The CRS of described interfered cell and data power ratio relevant parameter P _b;

The CRS of described interfered cell and data power ratio relevant parameter P _aspan;

The system bandwidth of described interfered cell;

The circulating prefix-length of described interfered cell;

The instruction whether synchronous with described Terminal Service community of described interfered cell;

The initial orthogonal frequency division multiplex OFDM character position of downlink data in a subframe of described interfered cell;

The transmission mode TM scope used is supported in described interfered cell;

The scope of the demodulated reference signal DMRS virtual channel identification VCID used is supported in described interfered cell;

The resource distribution mode used is supported in described interfered cell;

The resource allocation unit size of described interfered cell;

The resource allocation information of described interfered cell zero energy/non-zero power channel status instruction reference signal CSI-RS.

28. base stations according to claim 26, is characterized in that,

Described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of DMRS port 9/10/12/14 one or more.

29. base stations according to claim 26, is characterized in that,

Described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of CSI-RS port one or more.

30. base stations according to claim 26, is characterized in that,

Described N overlaps arbitrary cover mutingRE resource in mutingRE resource and is made up of two groups of discrete resource unit group, and described two groups of discrete resource unit group correspondences are positioned on the 1st PRB and the 2nd PRB of a Physical Resource Block PRB centering; Further,

Described resource unit group is made up of one or more Resource Units.

31. base stations according to claim 26, is characterized in that, arbitrary cover mutingRE resource that described N overlaps in mutingRE resource is made up of at least one Resource Unit outside following Resource Unit:

Support the Resource Unit being configured to CRS port; Support the Resource Unit being configured to CSI-RS port; Support the Resource Unit being configured to DMRS port 7/8/11/13; Support the OFDM symbol being configured to physical downlink control channel PDCCH.

32. base stations according to claim 26, it is characterized in that, described allocation units, also for the Physical Cell Identifier according to described interfered cell, for a set of mutingRE resource in described N cover mutingRE resource is distributed in any one interfered cell in a described M interfered cell.

33. base stations according to claim 32, is characterized in that, described allocation units comprise:

First numbering subelement, is numbered 1 to N for overlapping mutingRE resource to described N according to preset order;

First determines subelement, for determining that the Physical Cell Identifier of each interfered cell in a described M interfered cell is to the value i of N remainder number;

Distribute subelement, (i+1) that overlap in mutingRE resource for distributing described N for described interfered cell overlaps mutingRE resource; Wherein, i is nonnegative integer.

34. base stations according to claim 26, it is characterized in that, the mutingRE resource that described M distributes an interfered cell, for determining following information for described terminal: described interfered cell sends zero energy signal in distributed mutingRE resource, and maps downlink data according to the mode of rate-matched in distributed mutingRE resource.

35. base stations according to claim 26, is characterized in that,

Described first communication unit, also for after the downlink transfer parameter information of M interfered cell is informed to terminal, the enable mark of NAICS is eliminated/is suppressed in the network assistance interference to interfered cell described in described terminal notification;

Wherein, whether the enable mark of described NAICS is enable for the mutingRE resource indicating described interfered cell to distribute to terminal.

36. base stations according to claim 35, it is characterized in that, when the enable mark of NAICS of described interfered cell indicates the mutingRE resource distributing to described interfered cell enable, the enable mark of described NAICS is for determining following information for described terminal: described interfered cell sends zero energy signal on the resource location that distributed mutingRE resource is corresponding, and in distributed mutingRE resource, maps downlink data according to the mode of rate-matched.

37. base stations according to any one of claim 26 to 36, is characterized in that,

The mutingRE resource that in a described M interfered cell, arbitrary interfered cell is distributed, is mapped in whole system bandwidth resources of described interfered cell in units of the resource allocation unit of the downlink data of described interfered cell.

38. 1 kinds of terminals, is characterized in that, described terminal comprises:

Second communication unit, for receiving the downlink transfer parameter information of M interfered cell;

Based on described configuration information, first determining unit, for determining that described N overlaps the configuration information of silent resource unit mutingRE resource, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource;

Second determining unit, for distributing Received signal strength on resource location corresponding to mutingRE resource by the institute of each interfered cell in a described M interfered cell, determines the interfered cell needing in a described M interfered cell to carry out interference elimination/suppression;

Interference processing unit, for the downlink transfer parameter information according to the described interfered cell determined corresponding in described downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from the described interfered cell determined, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.

39., according to terminal according to claim 38, is characterized in that, in a described M interfered cell, the downlink transfer parameter information of any one interfered cell comprises following information one of at least:

The Physical Cell Identifier of described interfered cell;

The community own reference signal CRS port of described interfered cell;

The multicast single frequency network MBSFN sub-frame configuration of described interfered cell;

The CRS of described interfered cell and data power ratio relevant parameter P _b;

The CRS of described interfered cell and data power ratio relevant parameter P _aspan;

The system bandwidth of described interfered cell;

The circulating prefix-length of described interfered cell;

The instruction whether synchronous with described Terminal Service community of described interfered cell;

The initial orthogonal frequency division multiplex OFDM character position of downlink data in a subframe of described interfered cell;

Described interfered cell allows the transmission mode TM scope used;

Described interfered cell allows the scope of the demodulated reference signal DMRS virtual channel identification VCID used;

Described interfered cell allows the resource distribution mode used;

The resource allocation unit size of described interfered cell;

The resource allocation information of described interfered cell zero energy/non-zero power channel status instruction reference signal CSI-RS.

40., according to terminal according to claim 38, is characterized in that,

Described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of DMRS port 9/10/12/14 one or more.

41., according to terminal according to claim 38, is characterized in that,

Described N arbitrary cover mutingRE resource of overlapping in mutingRE resource comprises that to support to be configured in the Resource Unit of CSI-RS port one or more.

42., according to terminal according to claim 38, is characterized in that,

Described N overlaps arbitrary cover mutingRE resource in mutingRE resource and is made up of two groups of discrete resource unit group, and described two groups of discrete resource unit group correspondences are positioned on the 1st PRB and the 2nd PRB of a Physical Resource Block PRB centering; Further,

Described resource unit group is made up of one or more Resource Units.

43., according to terminal according to claim 38, is characterized in that, arbitrary cover mutingRE resource that described N overlaps in mutingRE resource is made up of at least one Resource Unit outside following Resource Unit:

Support the Resource Unit being configured to CRS port; Support the Resource Unit being configured to CSI-RS port; Support the Resource Unit being configured to DMRS port 7/8/11/13; Support the OFDM symbol being configured to physical downlink control channel PDCCH.

44. terminals according to any one of claim 38, is characterized in that, described first determining unit, also for the Physical Cell Identifier according to a described M interfered cell, determine the mutingRE resource that in a described M interfered cell, each interfered cell is distributed.

45. terminals according to claim 44, is characterized in that, described first determining unit comprises:

Second numbering subelement is 1 to N for being numbered according to preset order described N cover mutingRE resource;

Second determines subelement, for determining that the Physical Cell Identifier of each interfered cell in a described M interfered cell is to the value i of N remainder number;

3rd determines subelement, for determining that the mutingRE resource of distributing described interfered cell is that (i+1) that described N overlaps in mutingRE resource overlaps mutingRE resource; Wherein, i is nonnegative integer.

46., according to terminal according to claim 38, is characterized in that,

Described second determining unit, also for when determining the mutingRE resource that a described M interfered cell is distributed, determine that described interfered cell sends zero energy signal on the resource location that distributed mutingRE resource is corresponding, and in distributed mutingRE resource, map downlink data according to the mode of rate-matched.

47., according to terminal according to claim 38, is characterized in that,

Described second communication unit, the enable mark of the NAICS also for receiving described interfered cell;

Described second determining unit, also determine that described second communication unit receives the enable mark of NAICS of corresponding described interfered cell for working as, and the described NAICS enable mark instruction described interfered cell mutingRE resource of distributing enable time, determine that the interfered cell of the enable mark correspondence of described NAICS sends zero energy signal in distributed mutingRE resource, and described interfered cell maps downlink data according to the mode of rate-matched in distributed mutingRE resource.

48. terminals according to any one of claim 38 to 47, is characterized in that,

Described first determining unit, also in units of the resource allocation unit of described interfered cell, determines the mutingRE resource of distributing described interfered cell.

49. 1 kinds of interference treatment systems, it is characterized in that, described system comprises: base station and terminal; Wherein,

Described base station, the N for configuring for M interfered cell overlaps the mutingRE resource in silent resource unit mutingRE resource; The downlink transfer parameter information of a described M interfered cell is informed to terminal;

Described terminal, for overlapping the configuration information of silent resource unit mutingRE resource according to determined described N, determines that described N overlaps the mutingRE resource distributing to M interfered cell in mutingRE resource;

Received signal strength on the resource location that the mutingRE resource of being distributed by each interfered cell in a described M interfered cell is corresponding, determines to need in a described M interfered cell to carry out disturbing the interfered cell of eliminating/suppressing;

According to the downlink transfer parameter information of determined interfered cell corresponding in obtained downlink transfer parameter information, carry out blind Detecting to obtain the interference signal relevant transmission information from determined interfered cell, and utilize the interference signal relevant transmission information obtained to carry out interference elimination/suppression; Wherein, M and N is positive integer.