CN103262459B - Dispatch coordination and the signaling support for senior receiver algorithm between the network insertion node strengthened - Google Patents

Abstract

A kind of method includes: operation network insertion node to determine the scheduling granularity of the coordination with multiple Physical Resource Block collaboratively with at least one other network insertion node；And by signaling to the instruction of the scheduling granularity coordinated determined by least one mobile device transmission of network insertion node serve, for such as strengthening the estimation at the receiver of mobile device when estimating interference covariance matrix.Also disclose apparatus for carrying out the method and for receiving and use the mobile device method and apparatus of signaling.

Description

Dispatch coordination and the letter for senior receiver algorithm between the network insertion node strengthened Order is supported

Technical field

Exemplary and the non-limiting example of the present invention usually relates to wireless communication system, method, equipment and calculating Machine program, and merge (IRC) reception technique more particularly, to the AF panel strengthened.

Background technology

This part is intended to provide background or the context of the present invention described in detail in the claims.Here description can To include the principle that may use, but it is not necessarily those principles previously having contemplated that, and realized or describing.Therefore, unless The most otherwise indicate, be otherwise not the detailed description of the invention in the application and claim described in this part Prior art, and prior art will not be recognized as in the portion owing to including.

The following abbreviation can found in this specification and/or accompanying drawing can be defined below:

3GPP third generation partner program

BS base station

BW bandwidth

The multicast of CoMP coordination and reception

DCI down link control information

DL downlink (eNB to UE)

The NodeB of eNB E-UTRAN NodeB(evolution)

The block core of EPC evolution

The UTRAN(LTE of E-UTRAN evolution)

FDMA frequency division multiple access

HSPA high-speed packet accesses

IMT-A international mobile telecommunication association

ICI presence of intercell interference

ICIC Inter-Cell Interference Coordination

IRC AF panel merges

ITU-R International Telecommunication Union Radiocommunications

The Long Term Evolution (E-UTRAN) of LTE UTRAN

LTE-A LTE-is senior

MAC medium education (layer 2, L2)

MM/MME mobile management/Mobility Management Entity

Node B base station

OFDMA OFDM

O&M operation and maintenance

PDCCH physical downlink control channel

PDCP PDCP

PHY physics (layer 1, L1)

PRB Physical Resource Block

PRG precoding Resource Block group

Rel version

RBG Resource Block group

RLC radio link controls

RRC radio resource controls

RRM provided for radio resources management

RS reference signal

SGW gateway

SC-FDMA single-carrier frequency division multiple access

UE subscriber equipment, such as movement station, mobile node or mobile terminal

UL up-link (UE to eNB)

UPE user plane entity

UTRAN universal terrestrial radio is electrically accessed network

The communication system in a kind of modern times is referred to as the UTRAN(E-UTRAN of evolution, also referred to as UTRAN-LTE or referred to as E- UTRA).Within the system, DL access technology is OFDMA, and UL access technology is SC-FDMA.

A kind of specification interested is 3GPP TS36.300, V8.11.0 (2009-12), third generation partner program； Technical specification group radio access network；The universal terrestrial radio of evolution is electrically accessed the universal grounding of (E-UTRAN) and evolution and connects Enter network (EUTRAN)；Summary；Stage 2(Release8), entire contents is incorporated herein by reference.For simplicity, this is System can be referred to as LTE Rel-8.Generally, usually as 3GPP TS36.xyz(such as, 36.211,36.311,36.312 Deng) canonical collection that is given can be considered description Rel-8LTE system.Recently, at least in these specifications is had issued for The version of a little Release9, including 3GPP TS36.300, V9.3.0 (2010-03).

Figure 1A has reproduced Fig. 4 .1 of 3GPP TS36.300V8.11.0, and shows the total of EUTRAN system (Rel-8) Body framework.E-UTRAN system includes eNB, it is provided that towards E-UTRAN user plane (PDCP/RLC/MAC/PHY) and the control of UE Plane processed (RRC) agreement terminates.ENB is interconnected amongst one another by means of X2 interface.ENB is also connected to EPC by means of S1 interface, more specifically Ground, is connected to MME by means of S1MME interface, and is connected to S-GW by means of S1 interface (MME/S-GW4).S1 interface is supported Many-to-many relationship between MME/S-GW/UPE and eNB.

ENB trustship following function:

Function for RRM: RRC, radio access control, connect mobility control, dynamic to UE in UL and DL Resource analysis (is dispatched)；

The IP header-compressed of customer traffic and encryption；

The selection to MME when UE attaches；

User plane data is to EPC(MME/S-GW) route；

The scheduling of beep-page message (sending out from MME source) and transmission；

The scheduling of broadcast message (sending out from MME or O&M source) and transmission；And

For mobility and the measurement of scheduling and measurement report.

Particular interested herein, it is oriented to other versions (such as, LTE of the 3GPP LTE of following IMT-A system Rel-10, LTE Rel-11), for convenience, it is called LTE-senior (LTE-A) here for short.In this respect, it is referred to 3GPP TR36.913, V9.0.0 (2009-12), third generation partner program；Technical specification group radio access network；For E- UTRA(LTE-is senior) needs of the further development of (Release9).Can also be with reference to 3GPP TR36.912, V9.2.0 (2010-03) technical report, third generation partner program；Technical specification group radio access network；For E-UTRA(LTE- Senior) feasibility study of the further development of (Release9).

The purpose of LTE-A is, by more high data rate and more low time delay, originally provided with the one-tenth reduced and significantly carries High service.LTE-A to provide with lower cost for the radio access technologies of extension and optimization 3GPP LTE Rel-8 Higher data rate.LTE-A is keeping being and is meeting senior to IMT-while the backward compatibility of LTE Rel-8 The radio system more optimized that ITU-R needs.

Such as defined in 3GPP TR36.913, LTE-A should operate in different size of frequency spectrum distributes, (such as, up to 100MHz) is distributed, to realize 100M bps for high mobility including frequency spectrum more broader than LTE Rel-8 Peak data rate and realize the peak data rate of 1G bps for Hypomobility.Admit for LTE-A Carrier aggregation to be considered, in order to support the bandwidth more than 20MHz.LTE-A is considered that being polymerized two or more components carries The carrier aggregation of ripple (CC), in order to support the transmission bandwidth more than 20MHz.Carrier aggregation can be continuous or discrete.Make For bandwidth expansion, compared with the non-polymeric operation in LTERel-8, this technology can be handled up at peak data rate and community Amount aspect provides notable gain.

Terminal can receive one or more component carrier according to its ability simultaneously.There is the reception energy more than 20MHz The LTE-A terminal of power can receive transmission on multiple component carriers simultaneously.Assuming that the structure of component carrier follows Rel-8 rule Model, then LTE Rel-8 terminal only may receive transmission on single component carrier.In addition, it is contemplated that Rel-8LTE terminal should In lte-a system, operable and LTE-A terminal should be operable in Rel-8LTE system, needs the LTE-A should be with Rel-8LTE back compatible.

Along with the growth of data business volume, wireless network is needed to provide more capacity.This capacity can be by adding more Many network insertion nodes, i.e. base station, increase, so that cell size becomes less.In this case, community clothes Be engaged in less UE.Analogously it is possible to some business are unloaded to such as attributive eNB (home base station) or other are less little District.These less communities can operate in the frequency band identical with bigger macrocell, and this is currently to work at 3GPP A kind of situation in project, the ICIC in heterogeneous network studied.Unloading business can also be implemented to be exclusively used in attributive eNB or The independent frequency carrier wave of LAN.

The common issue occurred in all these situation is, link performance becomes increasingly by minizone The restriction of interference (ICI).A kind of trial overcomes the method for this problem to be to provide can to suppress or eliminate in presence of intercell interference extremely The receiver algorithm of the enhancing of fewer interference.Generally, the receiver algorithm of such enhancing needs about presence of intercell interference Some knowledge, such as, the such as covariance matrix of the ICI in the case of AF panel merges (IRC).

Summary of the invention

The exemplary embodiment of the application of the invention solves and overcomes foregoing and other problem.

In a first aspect of the present invention, the exemplary embodiment of the present invention provides a method that, the method includes: behaviour Make network insertion node to determine the coordination including multiple Physical Resource Block collaboratively with at least one other network insertion node Scheduling granularity (granularity)；And sent out to by least one mobile device of network insertion node serve by signaling The instruction of the scheduling granularity coordinated determined by sending, to strengthen the estimation at the receiver of at least one mobile device.

In a still further aspect thereof, the exemplary embodiment of the present invention provides a kind of device, and this device includes place Reason device and memorizer, this memorizer includes computer program code.This memorizer and computer program code are configured to utilize Processor makes network insertion node and at least one other network insertion node determine collaboratively to include multiple Physical Resource Block The scheduling granularity of coordination, and determined to being sent by least one mobile device of network insertion node serve by signaling The instruction of scheduling granularity of coordination, to strengthen the estimation at the receiver of at least one mobile device.

In still yet another aspect of the present, the exemplary embodiment of the present invention provides a method that, the method includes: Receiving signaling from network insertion node at mobile device, this signaling received includes describing the tune including multiple Physical Resource Block The information of degree granularity, wherein this scheduling granularity is coordinated between multiple network insertion nodes；And at mobile device The scheduling granularity coordinated is used to strengthen the estimation at the receiver of mobile device.

In a still further aspect thereof, the exemplary embodiment of the present invention provides a kind of device, and this device includes place Reason device and memorizer, this memorizer includes computer program code.This memorizer and computer program code are configured to utilize Processor makes mobile device receive signaling from network insertion node, and this signaling received includes that description includes that multiple physics provides The information of the scheduling granularity of source block, wherein this scheduling granularity is coordinated between multiple network insertion nodes；And moving The scheduling granularity coordinated is used to strengthen the estimation at the receiver of mobile device at dynamic equipment.

In a still further aspect thereof, the exemplary embodiment of the present invention provides a kind of device, and this device includes: use Multiple Physical Resource Block is included to determine collaboratively with at least one other network insertion node in operation network insertion node The parts of the scheduling granularity coordinated；For sending institute by signaling to by least one mobile device of network insertion node serve The instruction of the scheduling granularity of the coordination determined is with the parts carrying out using in estimating interference covariance matrix；And for extremely Few other network insertion node determines the parts of the orthogonal reference signal radio resource of coordination collaboratively, wherein said logical The parts crossing signaling transmission are further configured to send, by signaling, the orthogonal reference letter coordinated at least one mobile device The instruction of number radio resource.

Accompanying drawing explanation

In the accompanying drawings:

Figure 1A has reproduced Fig. 4 .1 of 3GPP TS36.300, and shows the general frame of EUTRAN system.

Figure 1B has reproduced Fig. 5 .2.1-1 of 3GPP TS36.211V9.1.0, and shows UL resource grid.

Fig. 1 C has reproduced Fig. 6 .2.2-1 of 3GPP TS36.211V9.1.0, and shows DL resource grid.

Fig. 2 shows the simplification frame be applicable to the various electronic equipments used the exemplary embodiment put into practice the present invention Figure.

Fig. 3 is that diagram is according to the operation of the method for the exemplary embodiment of the present invention and on computer-readable memory The logic flow diagram of the execution result of the computer program instructions realized.

Fig. 4 is to illustrate the operation of the method for exemplary embodiment according to the present invention further and deposit at computer-readable The logic flow diagram of the execution result of the computer program instructions realized on reservoir.

Detailed description of the invention

The exemplary embodiment of the present invention is directed in part to receiver (UE or eNB) place and carries for the interference elimination strengthened For wireless network support.

Discussed below is Physical Resource Block (PRB).In this respect, 3GPP TS36.211V9.1.0 it is referred to (2010-03) technical specification third generation partner program；Technical specification group radio access network；The universal grounding of evolution without Line is electrically accessed (E-UTRA)；Physical channel and modulation (Release9), such as with reference to Fig. 5 .2.1-1 reproduced such as Figure 1B here: Uplink resource grid and Fig. 6 .2.2-1: the down-chain resource grid reproduced such as Fig. 1 C here.

Such as defined in 3GPP TS36.211V9.1.05.2.1 joint, for UL, useIndividual subcarrier andThe resource grid of individual SC-FDMA symbol describes the signal transmitted in each time slot.Illustrate UL money the most in fig. ib Source grid.AmountDepend in community configuration ul transmissions bandwidth and it suffices that WhereinWithIt is the minimum and maximum uplink bandwidth supported of the specification of current version respectively. Before the number of the SC-FDMA symbol in time slot depends on the circulation configured by higher level parameters UL-CyclicPrefixLength Sew length, and be given in table 5.2.3-1.

Table 5.2.3-1: resource block parameters

In 5.2.2 saves, describe UL resource element.Each element in resource grid is referred to as resource element, and And by the index in time slot to (k, l) defines uniquely, whereinWithRespectively It it is the index in frequency domain and time domain.(k, l) with complex values a for resource element_k,lCorresponding.Be not used in physical channel or time slot Corresponding amount a of the resource element of transmission of physical signalling_k,lIt is arranged to zero.

In 5.2.3 saves, describe UL Resource Block.Physical Resource Block is defined as in time domainIndividual continuous SC- In FDMA symbol and frequency domainIndividual continuous subcarrier, whereinWithBe given by table 5.2.3-1.Therefore, up Physical Resource Block in link byIndividual resource element form, corresponding with 1 time slot in time domain and with frequency 180kHz in territory is corresponding.

Physical Resource Block number n in frequency domain_PRBWith in time slot resource element (k, l) between relation given by following formula Go out:

Such as defined in 3GPP TS36.211V9.1.06.2.1 joint, for DL, useIndividual subcarrier andThe resource grid of individual OFDM symbol describes the signal transmitted in each time slot.Illustrate DL resource the most in fig. 1 c Lattice structure.AmountDepend on the downlink transmission bandwidth configured in the cell, and it suffices that $N_{\mathrm{RB}}^{\min ,\mathrm{DL}}\≤N_{\mathrm{RB}}^{\mathrm{DL}}\≤N_{\mathrm{RB}}^{\max ,\mathrm{DL}},$ Wherein $N_{\mathrm{RB}}^{\min ,\mathrm{DL}}=6$ With $N_{\mathrm{RB}}^{\max ,\mathrm{DL}}=110$ It is the minimum and maximum downlink band supported by the specification of current version respectively Wide.

The number of the OFDM symbol in time slot depends on circulating prefix-length and the subcarrier spacing configured, and Table 6.2.3-1 is given.

Table 6.2.3-1: Physical Resource Block parameter

In the case of multi-antenna transmission, there is a resource grid in every antenna port.Antenna port is associated by it Reference signal define.The antenna port set supported depends on the reference signal configuration in community:

The specific reference signal in community supports the configuration of 1,2 or 4 antenna port, and antenna end slogan p should Meet p=0, p ∈ { 0,1} and p ∈ { 0,1,2,3} respectively.

MBSFN reference signal transmits on antenna port p=4.

At antenna port p=5, p=7, p=8 or p ∈, { 7,8} is upper to be transmitted the specific reference signal of UE.

Location reference signals transmits on antenna port p=6.

6.2.2 joint describes DL resource element.Each element in the resource grid of antenna port p is referred to as resource Element, and by the index in time slot to (k, l) uniquely identifies, whereinAnd It is the index in frequency domain and time domain respectively.Resource element on antenna port p (k, l) and complex valuesCorresponding.

6.2.3 joint describes DL Resource Block, and wherein, Resource Block is for describing particular physical channel reflecting to resource element Penetrate.Define Physical Resource Block and virtual resource blocks.

In this context, during Physical Resource Block is defined as time domainIn individual continuous OFDM symbol and frequency domainIndividual continuous subcarrier, whereinWithBe given by table 6.2.3-1.Therefore, Physical Resource Block byIndividual Resource element forms, corresponding and corresponding with the 180kHz in frequency domain with 1 time slot in time domain.

In a frequency domain, DL Physical Resource Block is numbered from 0Physical Resource Block number n in a frequency domain_PRBAnd time Resource element in gap (k, l) between relation be given by:

It is to use AF panel to merge a kind of simple of receiver side suppression presence of intercell interference and commonly used approach (IRC), wherein, equipped with multiple antennas receiver estimate interference covariance matrix, and based on this estimation calculate for The suitable weighting of receiver antenna, in order to spatially suppress interference.

Therefore, in order to realize IRC, receiver (UE or eNB) is it is to be appreciated that interference covariance matrix.Basically there exist two kinds For the method obtaining this knowledge.In first method, receiver is by estimating its serving cell channel, from reception To signal in extract Serving cell contribution and carry out estimate covariance from the signal measurement covariance obtained.In the second side In method, the channel of the strongest (dominating) interference source of receiver estimation, estimation noise power in addition to leading interference source, and One strong interferers domination covariance supposition under form interference covariance matrix.

First method problematically, in LTE because scheduling determines to change for each subframe and also may pin Each PRB is changed (being explained above with reference to Figure 1B and Fig. 1 C), so the structure of interference generally cannot be entered by UE/eNB The supposition that row is too much.Because the transmission plan and/or the precoder that use in each PRB are probably different, so different Subframe/PRB in interference covariance may be very different.Cause the receiver may be only often due to the operation of the type Perform covariance on the basis of PRB to estimate, i.e. estimation is not expanded to PRB border by receiver.Owing to can be used for estimate covariance The number of sample (measurement sample) very limited, and result in bad covariance matrix and therefore result in deficiency Interference rejection capability.Therefore, this problem relates to allowing UE or eNB receiver to estimate to do from more substantial sample in some way Disturb covariance matrix (and not increasing expense).

About second method, it may occur however that substantially with identical problem outlined above.Additionally, second method is excellent Selection of land needs in the PRB distributed between community (in downlink) or in UE(up-link) between orthogonal reference letter Number.

Additionally, only when receiver have can sufficient spatial degrees of freedom come for AF panel time, such as 2-RX(two Individual reception antenna) receiver when can suppress an interference signal source, use the method to be only effectively.

It should be noted that, it is possible on PRB border, reliably estimate parameter except being useful it for IRC receiver algorithm Outer may also be useful for other receiver algorithms.The channel estimation quality improved for the most eurypalynous receiver is all Useful.Additionally, the specific senior receiver algorithm of such as turbo equilibrium generally also utilizes interference covariance information.

It should be apparent that, the solution of foregoing problems is needed the coordination of specified level between adjacent eNB with And the related signaling between eNB and UE.Then, this generates the most most effective and realize efficiently between eNB coordinate and such as The other problems of the parameter what is coordinated to UE notice.

Under the background of heterogeneous network, have been proposed for the IRC with the orthogonal RS of minizone in 3 gpp.This side Face, is referred to 3GPP TSG RAN WG1 meeting #61, R1-102885, Montreal, Canada, in May, 2010 10-14 Day, source: Panasonic, entitled Possibility of UE side ICI cancellation in Hetnet, view Journey project: 6.8Enhanced ICIC for non-CA based deployments of heterogeneous networks for LTE.The document is not discussed for coordinating the signaling between the eNB that reference signal uses.

Bundle (bundling) for the PRB of channel estimation purpose to have been carried out discussing in RAN1, and for Rel-10 is specified.Reproduced below change request (CR) (R1-105111,3GPP from the draft of 3GPP TS36.213 TSG-RAN Meeting#62, Madrid, Spain, in August, 2010 23-27) in extract content:

7.1.6.5PRB binding

It is configured to the UE of the transmission mode 9 of given Serving cell c it can be assumed that feed back when being configured with corresponding PMI/RI Time, precoding granularity is the multiple Resource Block in frequency domain.Size is the precoding Resource Block depending on fixed system bandwidth of P ' System bandwidth is split by group (PRG), and each PRG is made up of continuous print PRB.IfThen PRG In one haveSize.PRG size starts not increase at low-limit frequency.UE can be always false The fixed PRB to all scheduling in PRG applies identical precoder.

UE can be given in the following table for the PRG size that given system bandwidth supposes:

But, the method only allows UE to suppose identical pre-in their own community for the PRB number indicated by PRG size Coding, and do not imply that any relevant to interference.Such as, other communities can use the different resource not mated with PRG size to divide Join, or other communities can use other transmission plan/patterns not being applied to PRB binding.Therefore, UE is in Interference Estimation In at most can assume that in a PRB " continuously " interference.

Have been proposed for two UL DM RS(demodulated reference signals are created for UL CoMP) pattern: " DM RS adjusts mould Formula " and " Rel-8DM RS pattern ".In " DM RS adjustment modes ", in the UE of " the DM RS adjustment " pattern in CoMP region Use identical sequence group, however it is necessary that DM RS bandwidth (and cyclic shift) alignment on each community.Note, the association considered Tune is limited to DM RS.Additionally, the coordination approach proposed is distributing for introducing specified difference between the PRB and data of DM RS； BW more broader than data can be used to send DM RS.For operating typically for IRC, the coordination of data PRB distribution is weight Want.

The one side of the exemplary embodiment of the present invention is the coordination of scheduling granularity.The exemplary embodiment of the present invention another On the one hand it is to strengthen eNB-UE signaling to set mobile to assist and such as to strengthen during interference covariance matrix estimation procedure The standby estimation at receiver.

Before the exemplary embodiment of the present invention is described in further detail, with reference to being applicable to putting into practice this for diagram The various electronic equipments used in bright exemplary embodiment and Fig. 2 of the simplified block diagram of device.In fig. 2, wireless network 1 is fitted For via network insertion node (such as Node B(base station) and more specifically eNB12) by wireless link 11 and such as may be used Communicate being referred to as the device of the mobile communication equipment of UE10.Network 1 can include network control unit (NCE) 14, should Network control unit NCE14 can include the MME/SGW function shown in Figure 1A, and provide with such as telephone network and/or The connectivity of other networks of data communication network (such as, the Internet).UE10 includes: controller, such as at least one calculating Machine or data processor (DP) 10A, it is achieved for storing memorizer (MEM) 10B of computer program of instructions (PROG) 10C at least One non-volatile computer readable memory medium, and for carrying out two-way nothing via one or more antennas with eNB12 At least one suitable radio frequency (RF) emittor/receiver of line communication is to (transceiver) 10D.ENB12 also includes: controller, Such as at least one computer or data processor (DP) 12A, it is achieved for storing the storage of computer program of instructions (PROG) 12C At least one computer readable memory medium of device (MEM) 12B, and for (many when using via one or more antennas It is usually several during input/multi output (MIMO) operation) at least one suitable RF transmitter of communicating with UE10/connect Receipts machine is to (transceiver) 12D.ENB12 is coupled to NCE14 via data/control path 13.Path 13 may be implemented as Figure 1A Shown in S1 interface.ENB12 is also coupled at least one other eNB(such as via data/control path 15, one or many Individual neighbours eNB12), path 15 may be implemented as the X2 interface shown in Figure 1A.The exemplary enforcement of at least one of the present invention Example have employed and communicates between NB, and as will be described below, and data/control path 15 can represent X2 interface or some other Communication media between eNB.

Purpose for the exemplary embodiment describing the present invention, it can be assumed that UE10 also includes covariance matrix (CME) block 10E, and eNB12 can also include CME block 12E.

Assuming that PROG10C and 12C includes programmed instruction, when associating DP and performing this programmed instruction so that equipment can root Operate according to the exemplary embodiment of the present invention, as will be discussed in greater detail below.That is, the exemplary reality of the present invention Execute example can at least in part by can by the DP10A of UE10 and/or by eNB12 DP12A perform computer software or by Hardware or the combination by software and hardware (and firmware) realize.

Generally, the various embodiments of UE10 can include but not limited to cell phone, have the individual of wireless communication ability Digital assistants (PDA), there is the portable computer of wireless communication ability, there is the image-capturing apparatus of wireless communication ability (such as digital camera), have wireless communication ability game station, have wireless communication ability music storage and playback set Standby, allow wireless Internet to access and the internet equipment that browses and the portable unit of the combination that comprises such function Or terminal.

Computer-readable memory 10B and 12B can have any type being applicable to local technical environment, and permissible Any suitable data storage technology is used to realize, such as memory devices based on quasiconductor, random access memory, only Read memorizer, programmable read only memory, flash memory, magnetic storage device and system, optical memory devices and system, consolidate Determine memorizer and removable memorizer.Data processor 10A and 12A can have any class being applicable to local technical environment Type, and as non-limiting example, general purpose computer, special-purpose computer, microprocessor, digital signal processor can be included (DSP) one or more and in processor based on polycaryon processor framework.

The first exemplary embodiment according to the present invention, it is provided that a kind of technology, this technology makes it possible in adjacent eNB 12 Between coordinate and signaling exchange, in order to the purpose for AF panel allows estimating the enhancing of interference covariance matrix Meter.

The first aspect of the first exemplary embodiment is the coordination of scheduling granularity.Relative to the granularity of one PRB of use, ENB12 has reached an agreement on the granularity of use relatively low (rougher) among themselves, and such as 2 PRB or 3 PRB, this allows UE/ The CME10E/12E of eNB carrys out estimate covariance matrix in the greater part of BW and therefore with greater number of sample.Because Interference covariance can be considered in the part of the agreement in BW the most constant (or at least continuous print), so this It is possible.In practice, the coordination of this scheduling granularity relates to the negotiation (being realized by signaling) between eNB12.

The second aspect of the first exemplary embodiment is the coordination of reference signal, and this is considered the letter formed between eNB12 Make a part for scheme.

The another aspect of the first exemplary embodiment relates between eNB12 about will the radio of application coordination thereon The negotiation of the resource that resource uses.In order to eNB12 scheduling not being forced too much restriction, this is desired, i.e. it can be desirable to The some parts of radio resource can be scheduling (that is, not coordinating for adjacent eNB) in the way of not coordinating.Example Property embodiment this aspect thereby implied that strengthen IRC can with resource in agreement part be used together.Therefore, eNB12 Then carry out operating so that the scheduling experiencing the UE of strong leading interference has priority, in order to use the radio resource of agreement.

The signaling between eNB12 can be specified in the way of open to eNB supplier.That is, eNB can be responsible for what determines Time from eNB send new signaling and when receiving the Interference Estimation related signaling from adjacent eNB eNB what takes specific Action.This can be considered in some respects with it has been specified that ICIC scheme similar.For example, it is possible to reference to 3GPP TS36.420, V9.0.0 (2009-12) technical specification third generation partner program；Technical specification group radio access network； The universal terrestrial radio of evolution is electrically accessed network (E-UTRAN);Aspect and the 5.2.3 of principle (Release9) that X2 is total save；With And 3GPP TS36.423V9.4.0 (2010-09) technical specification third generation partner program；Technical specification group radio accesses Network；The universal terrestrial radio of evolution is electrically accessed network E-UTRA；X2 application protocol (X2AP) (Release9), 8.3.1 saves.

Briefly, the 8.3.1 joint (load instruction) of 3GPP TS36.423V9.4.0 partly elaborates that load indicated The purpose of journey is between eNB to transmit load and the interference coordination information controlling homogeneous frequency adjacent area.This process uses non-UE The signaling of association.

Situation to Successful Operation, eNB controls the load information (LOAD of homogeneous frequency adjacent area to eNB by sending INFORMATION) message initiates this process.

If receiving UL interference overload instruction IE(information element in Load Information Message), then it indicates according to PRB The interference level that indicated community experiences on all Resource Block.Receive eNB and can consider this when arranging its scheduling strategy The information of sample, and will be understood that and carry the UL that receives before the new Load Information Message of the renewal of identical IE and do receiving Disturb overload instruction IE value continuously effective.

If receiving UL high interference instruction IE in Load Information Message, then it indicates high interference sensitivity according to PRB Generation, as from sending as eNB sees.Receive eNB should attempt avoiding adjusting for the PRB paid close attention in its community Degree cell edge UE.The Target cell ID IE received in UL high interference information IE group in Load Information Message indicates phase Answer UL high interference instruction should for community.Receive eNB and will be understood that the new load information receiving bearer update disappears The value continuously effective of this UL high interference information IE group before breath.

If receiving relative arrowband Tx power (RNTP) IE in Load Information Message, then it is according to PRB indicating downlink Whether link transmission power is less than the value indicated by RNTP threshold value IE.Receive eNB and can consider this when arranging its scheduling strategy Information, and will be understood that and receiving the relative arrowband Tx power received before the new Load Information Message of bearer update (RNTP) IE value continuously effective.

Now turning to the discussion of the exemplary embodiment to the present invention, the signaling between eNB12 can be considered for excellent " suggestion " of the neighbor cell operation of choosing or regard as operating relevant " information sharing " to Serving cell or regarding as these Some combinations.

In order to realize desired signaling harmonizing, eNB12 needs to exchange customizing messages.As three non-limiting examples, this X2 interface (such as, as shown in Figure 1A and Fig. 2) can be used or via aerial (wireless) eNB-eNB communication channel or Person is realized by the information relayed between eNB12 via UE10.Generally, the information exchanged can be considered to be static state , and thus without frequent exchange.

In order to scheduling granularity and be applied to coordinate radio resource coordinate, eNB12 can such as exchange Starting point (index of a PRB) and granularity based on PRB number.This scheduling granularity can be mated with resource allocation granularity. For UL, this is direct, and for DL, this may preferably meet in the above PRB binding table proposed reproduced The PRB size (relevant to the R1-105111CR of the 7.1.6.5 of 3GPP TS36.213 joint) illustrated or the resource being listed below Block group (PBG) size (as two non-limiting examples):

As it has been described above, amountDepend on the downlink transmission bandwidth configured in the cell, and meet $N_{\mathrm{RB}}^{\min ,\mathrm{DL}}\≤N_{\mathrm{RB}}^{\mathrm{DL}}\≤N_{\mathrm{RB}}^{\max ,\mathrm{DL}},$ Wherein $N_{\mathrm{RB}}^{\min ,\mathrm{DL}}=6$ And $N_{\mathrm{RB}}^{\max ,\mathrm{DL}}=110$ It is the minimum and maximum downlink band supported of the specification of current version respectively Wide.

The radio money that the radio resource that between eNB12, signaling can be also used for sharing with apply coordination thereon uses Orthogonal resource on source utilizes relevant information.Reference signal (RS) is the example of the information can shared between eNB12. Between eNB12, signaling may be used to indicate that to use on the radio resource coordinated and is particularly suited for orthogonal RS than normal RS structure The specific reference signals structure of the utilization of resources.For example, it is possible to exchange describes the information of the index of orthogonal reference signal.Should Index can be such as by transmitting those reserved indexes of community or those indexes freely used by other communities.This letter Order can also have the form " recommended " between eNB or the form of " information sharing ".

According to other exemplary embodiment of the present invention, it is provided that the framework of the parameter for coordinating to UE10 notice.

These exemplary embodiments make it possible to be sent at UE10 or strengthen dry in eNB12 to UE10 by signaling Disturb the necessary information of channel and/or covariance matrix.Specifically, in order to strengthen the estimation at the receiver of UE10, UE10 It is to be appreciated that it can perform what kind of estimation.Such as, eNB12 can assume assorted to UE10 instruction in the entire network Scheduling/the precoding granularity of type.ENB12 also can indicate that wherein UE10 can assume which reference signal may be used for doing Disturb those radio resources of estimation in suppression.Such as, relative to for IRC purpose, UE10 performs estimation according to PRB, refers to Show scheduling/precoding granularity to make it possible to the Interference Estimation across PRB edge (border) to filter.

Therefore, other signalings between eNB12 and UE10 are defined according to these exemplary embodiments, in order to (at least) Allow the estimation of the enhancing to interference covariance matrix for AF panel purpose.Can use different signalings select (and A combination thereof) realize this signaling.

A kind of possible selection is the dynamic coordinate signaling using and using DL resource distribution license (PDCCH).The method is It is suitable for use with relatively small number purpose signaling bit.The method may be used for, and such as, selects predefined tune in a dynamic way One of degree granularity.Alternatively, it can serve to indicate that the distribution of DL resource is a part for the radio resource coordinated, the most permissible Predefined scheduling granularity is supposed in UE10.Scheduling granularity can such as predefine by broadcast signaling or by RRC signaling. Additionally, in the range of these exemplary embodiments, the distribution of UL resource is a part for the radio resource coordinated, the most specific Reference signal structure will be used by UE10.The specific reference signal structure of UL refers to be particularly suited for little than normal RS structure The RS structure of the orthogonal RS utilization of resources between district.

Another possible selection be use semi-static RRC signaling such as configure current scheduling granularity or make it possible to The specific mode of UE uses specific RS structure.Additionally, semi-static RRC signaling may be used for configuring the frequency standing to coordinate to use (and/or time resource).

It should be noted that, broadcast signaling is the replacement to semi-static signaling, and may be used for coming in the specific mode in community Configuration interference coordination signaling.

Additionally, use between interference eNB12 and UE10 dynamic signaling be to semi-static and broadcast signaling in any one Individual or the two replacement.Assuming that community synchronizes in time and the already known neighbours of UE10 disturb the community ID of eNB, then its Can also receive and monitor that (monitoring) their DL controls channel.ENB12 can such as pass through existing form PDCCH or format Type 0 bitmap (Type-0bitmap) in PDCCH notices the associating (union) of its all distribution in subframe, wherein By community ID to CRC(Cyclic Redundancy Code) scramble.For the bandwidth of 20MHz, to be enough to be used in 4 of Interference Estimation The block (segmentation) (RBG) of PRB carries out channel distribution.Whenever there is " 1 " in bitmap, corresponding PRB just has identical Power, precoding, modulation scheme etc..Alternatively, " 1 " in bitmap can refer to that this parameter is identical for previous RBG 's.Assuming that there is some control bits available in DCI format (such as, form 1), this can serve to indicate that interpretation type 0 The different options of bitmap and other modes.

Cause somewhat increasing Receiver Complexity owing to needing to perform some other blind decoding, but whether why Sample IRC receiver is more more complicated than traditional receiver.The dynamic signaling of the type at least has the excellent of the dispatching flexibility of increase Point.

For various PDCCH forms, it is referred to the 6.8.1 joint of above referenced 3GPP TS36.211V9.1.0.For DCI format, is referred to 3GPP TS36.212V9.2.0(2010-06) technical specification third generation partner program 5.3.3.1 joint；Technical specification group radio access network；The universal terrestrial radio of evolution is electrically accessed (E-UTRA)；Multiplexing and letter Road coding (version 9).The concrete ginseng to DCI format 1 can be found in the 5.3.3.1.2 of 3GPP TS36.212V9.2.0 saves Examine.

Existence can with first exemplary embodiment of the application of the invention and the second exemplary embodiment realize a lot Technique effect and various advantage.Such as, it is provided that for the community of the notable gain exceeding such as LTE Rel-10 can be provided Between the framework of IRC coordinated.The most such as, these exemplary embodiments support the enhancing in both UE10 and eNB12 IRC.Additionally, these exemplary embodiments provide the IRC receiver embodiment of simplification.

Based on foregoing, it should it is readily apparent that the exemplary embodiment of the present invention provides a kind of at channel radio Communication system provides that strengthen and that the coordinate method of IRC, device and computer program.

Fig. 3 is operation and the execution of computer program instructions of the method illustrating the exemplary embodiment according to the present invention The logic flow diagram of result.According to these exemplary embodiments, a kind of method performs following step at frame 3A: operate network insertion Node to determine the scheduling granularity of the coordination including multiple Physical Resource Block collaboratively with at least one other network insertion node. It is following step at frame 3B: determined to by least one mobile device transmission of network insertion node serve by signaling The instruction of scheduling granularity of coordination, such as to strengthen connecing at least one mobile device when estimating interference covariance matrix Estimation at receipts machine.

In the method for figure 3, may further comprise: and determine coordination collaboratively with at least one other network insertion node Orthogonal reference signal radio resource, and by signaling at least one mobile device send coordinate orthogonal reference signal without The instruction of line electric resources.

In the method for figure 3, by using between network insertion node and at least one other network insertion node Signaling realizes coordinating, and wherein this signaling includes the suggestion relevant to the operation of the minizone of network insertion node.

In the method for figure 3, by using between network insertion node and at least one other network insertion node Signaling realizes coordinating, and wherein this signaling includes the information sharing relevant to the operation of the minizone of network insertion node.

In the method for figure 3, by exchange between network insertion node the index of the first Physical Resource Block realize right The coordination dispatching granularity and the coordination of the radio resource being applied to this coordination, and wherein based on Physical Resource Block Number specifies this granularity.

In the method for figure 3, may further comprise: and determine coordination collaboratively with at least one other network insertion node Orthogonal reference signal radio resource information, wherein, this coordination is by exchanging orthogonal ginseng between network insertion node The index examining signal realizes, and wherein, this index is for the community at network insertion node by network insertion node reserves In one of those indexes of carrying out transmitting or those indexes of freely being used by other network insertion nodes.

In the method for figure 3, wherein, signaling is the dynamic radio resources sent by physical downlink control channel Control one of signaling or semi-static radio resource control signaling.

In the method for aforementioned paragraphs, wherein, dynamic radio resources control signaling specify predefined scheduling granularity it One, or the distribution of indicating downlink link circuit resource is the part of radio resource coordinated, and the most predefined scheduling granularity can To be assumed to be used by mobile device.

In the method for aforementioned paragraphs, wherein, predefined scheduling granularity is by broadcast signaling or by radio resource control Signaling processed is specified.

In the method for figure 3, wherein, signaling indicates the upper of the part as the radio resource coordinated at least in part Downlink resources distributes, and wherein, specific reference signal structure will be used by mobile device.

In the method for figure 3, wherein, by using the bitmap signaling in physical downlink control channel to include that network connects The associating of all distribution of ingress, wherein, uses the cell identifier of network insertion node to scramble Cyclic Redundancy Code, so that Obtain the mobile device in neighbor cell and can monitor the signaling of network insertion node.

Exemplary embodiment also includes a kind of non-transient computer-readable medium, and this non-transient computer-readable medium comprises Software program instructions, wherein, at least one data processor result in the execution of operations described below to the execution of software program instructions, This operation includes the execution of aforementioned some paragraphs of the method for Fig. 3 and the method for description Fig. 3.

Various frames shown in Fig. 3 can be considered method step and/or by the operation generation of computer program code Operate and/or be configured to perform the logic circuit component of multiple couplings of correlation function.

Therefore, exemplary embodiment also includes a kind of device, and this device includes processor and includes computer program code Memorizer, wherein, memorizer and computer program code be configured to utilize processor make network insertion node with at least One other network insertion node determines the scheduling granularity of the coordination including multiple Physical Resource Block collaboratively, and passes through signaling To the instruction by the scheduling granularity coordinated determined by least one mobile device transmission of network insertion node serve, with such as The estimation at the receiver of at least one mobile device is strengthened when estimating interference covariance matrix.

Fig. 4 is the knot of the execution of the operation of the method for the exemplary embodiment according to the present invention and computer program instructions The logic flow diagram of fruit.According to these exemplary embodiments, a kind of method performs following step at frame 4A: at mobile device from Network insertion node receives and includes describing the signaling of the information of the scheduling granularity including multiple Physical Resource Block, wherein dispatches granularity Coordinated between multiple network insertion nodes.It is following step at frame 4B: at mobile device, use the tune coordinated Degree granularity such as to strengthen the estimation at the receiver of mobile device when estimating interference covariance matrix.

In the method for Fig. 4, still further comprise following step: receive from network insertion node at mobile device and describe The signaling information of the orthogonal reference signal radio resource coordinated.

In the method for Fig. 4, wherein, signaling is the dynamic radio resources sent by physical downlink control channel Control one of signaling or semi-static radio resource control signaling.

In the method for aforementioned paragraphs, wherein, dynamic radio resources control signaling specify predefined scheduling granularity it One, or the distribution of indicating downlink link circuit resource is the part of radio resource coordinated, and the most predefined scheduling granularity can To be assumed to be used by mobile device.

In the method for aforementioned paragraphs, wherein, predefined scheduling granularity is by broadcast signaling or by radio resource control Signaling processed is specified.

In the method for Fig. 4, wherein, signaling indicates the upper of the part as the radio resource coordinated at least in part Downlink resources distributes, and wherein, specific reference signal structure will be used by mobile device.

In the method for Fig. 4, wherein, by using the bitmap signaling in physical downlink control channel to include that network connects The associating of all distribution of ingress, wherein, uses the cell identifier of network insertion node to scramble Cyclic Redundancy Code, so that Obtain the mobile device in neighbor cell and can monitor the signaling of network insertion node.

Exemplary embodiment also includes a kind of non-transient computer-readable medium, and this non-transient computer-readable medium comprises Software program instructions, wherein, at least one data processor causes the execution of operations described below to the execution of software program instructions, should Operation includes the execution of aforementioned some paragraphs of the method for Fig. 4 and the method for description Fig. 4.

Various frames shown in Fig. 4 can also be considered method step and/or be produced by the operation of computer program code Operation and/or be configured to perform the logic circuit component of multiple couplings of correlation function.

Therefore, exemplary embodiment also includes a kind of device, and this device includes processor and includes computer program code Memorizer, wherein, memorizer and computer program code are configured to utilize processor to make mobile device from network insertion Node receives and includes describing the signaling of the information of the scheduling granularity including multiple Physical Resource Block, and wherein scheduling granularity is at multiple nets Coordinated between network access node.This memorizer and computer program code are further configured to utilize processor moving Use, at dynamic equipment, the scheduling granularity coordinated such as to strengthen the reception in mobile device when estimating interference covariance matrix Estimation at machine.

The exemplary embodiment of the present invention also includes a kind of device, this device include for operate network insertion node with At least one other network insertion node determines the parts (example of the scheduling granularity of the coordination including multiple Physical Resource Block collaboratively As, DP12A, MEM12B, PROG12C, CME12E).This device farther include for by signaling to by network insertion node The instruction of the scheduling granularity coordinated determined by least one mobile device transmission of service is at least estimating interference association The parts (such as, the transmitter 12D of DP12A, MEM12B, PROG12C, transceiver) used in variance matrix.This device enters one Step includes the orthogonal reference signal radio resource for determining coordination collaboratively with at least one other network insertion node Parts (such as, DP12A, MEM12B, PROG12C, CME12E), wherein, the described parts sent by signaling are joined further It is set to send the instruction to the orthogonal reference signal radio resource coordinated by signaling at least one mobile device.

Generally, various exemplary embodiments can be come real with hardware or special circuit, software, logic or its any assembly Existing.Such as, some aspects can realize with hardware, and other aspects can be with by controller, microprocessor or other calculating Firmware or software that equipment performs realize, but the invention is not restricted to this.Although the exemplary embodiment of the present invention is various Aspect can be depicted and described as block diagram, flow chart or use some other figures to represent, it is well known that be, as non- Limitative examples, these blocks described herein, device, system, techniques or methods can be with hardware, software, firmware, special circuits Or logic, common hardware or controller or other calculating equipment or some of combination realize.

It will therefore be appreciated that at least some aspect of the exemplary embodiment of the present invention can be with such as ic core The various assemblies of sheet and module are put into practice, and the exemplary embodiment of the present invention can be in the device being embodied as integrated circuit Realize.Integrated circuit or circuit can include operating for the realization exemplary embodiment being configurable to according to the present invention One or more data processors, one or more digital signal processor, baseband circuitry and radio frequency circuit system in The Circuits System of at least one or more (and possible firmware).

When reading in conjunction with the accompanying drawings, in view of description before, the various of the foregoing example embodiment of the present invention are repaiied Change and change and will become clear from for the technical staff in correlative technology field.But, any and whole amendment is still So fall in the range of the non-limiting and exemplary embodiment of the present invention.

Such as, although describing exemplary embodiment in the context of the system of UTRAN LTE-A type, but It should be appreciated that the exemplary embodiment of the present invention is not limited to only be used by a kind of certain types of wireless communication system, and It is that they can be used to facilitate other wireless communication systems.

It should be noted that, that term " connects ", " coupling " or its any variant refer between two or more elements is any Direct or indirect connection or coupling, and existence one can be included between " connection " or " coupling " two elements together Individual or multiple intermediary element.Coupling between elements or connect can be physics, logic or a combination thereof.As adopted here , as some non-limiting and non-exclusive example, two elements are considered by using one or more leading Line, cable and/or printed electronic connect and by use such as have in radio frequency field, microwave region and light (visible and not Visible ray) electromagnetic energy of electromagnetic energy of wavelength in region and be " connected " or " coupled " together.

Additionally, be used for various titles (such as, " scheduling granularity ", " Physical Resource Block " etc.) the unawareness of described parameter It is it is restrictive in any way, because these parameters can be identified by any suitable title.Additionally, use these The formula of various parameters can be different from the clearest and the most definite those disclosed with expression formula.Additionally, be assigned to the various of different channels Title (such as, PDCCH etc.) is unexpectedly it is restrictive in any way because these various channels can by any suitably Title identify.

Additionally, some features of the various non-limiting and exemplary embodiments of the present invention can be used to facilitate not Use the situation of other features accordingly.So, described above should be considered merely illustrate the principle of the present invention, teaching and Exemplary embodiment, and it is not carried out any restriction.

Claims (45)

1. for a method for communication, including:

Operation Serving cell network insertion node with determine collaboratively with at least one adjacent networks access node be described in The information of the scheduling granularity used at least one community that described Serving cell is adjacent, described scheduling granularity includes multiple physics Resource Block；And

By described network insertion node by signaling to by least the one of the described network insertion node serve of described Serving cell Individual mobile device sends the instruction to the described scheduling granularity used at least one neighbor cell described, to strengthen described Estimation at the receiver of at least one mobile device.

Method the most according to claim 1, wherein uses described in the scheduling granularity used at described receiver The signaling of instruction is for estimating interference covariance matrix.

Method the most according to claim 1, farther includes: with at least one adjacent networks access node described collaboratively Determine the orthogonal reference signal radio resource of coordination, and sent described at least one mobile device described by signaling The instruction of the orthogonal reference signal radio resource coordinated.

Method the most according to claim 1, wherein by using in described network insertion node and at least one phase described Between adjacent network insertion node, the information of exchange realizes the coordination to described scheduling granularity, and wherein said information includes with described The suggestion that the minizone operation of network insertion node is correlated with.

Method the most according to claim 1, wherein by using in described network insertion node and at least one phase described Between adjacent network insertion node, the information of exchange realizes the coordination to described scheduling granularity, and described information includes and described network The information sharing that the minizone operation of access node is correlated with.

Method the most according to claim 1, wherein by exchanging the first Physical Resource Block between network insertion node Index realizes the coordination to described scheduling granularity and is applied to the coordination of the radio resource coordinated, and wherein base Number in Physical Resource Block specifies described granularity.

Method the most according to claim 1, farther includes: with at least one adjacent networks access node described collaboratively Determine the orthogonal reference signal radio resource information of coordination, wherein orthogonal by exchanging between network insertion node The index of reference signal realizes described coordination, and wherein said index is for described by described network insertion node reserves One of the index carrying out in the community of network insertion node transmitting or the index freely used by adjacent networks access node.

8., according to the method described in any one in claim 1-7, wherein said signaling is by physical down link control The dynamic radio resources that channel processed sends controls one of signaling or semi-static radio resource control signaling.

Method the most according to claim 8, wherein said dynamic radio resources controls signaling and specifies predefined scheduling One of granularity, or the distribution of indicating downlink link circuit resource is the part of radio resource coordinated, wherein said predefined Scheduling granularity can be assumed to be used by described mobile device.

Method the most according to claim 9, wherein said predefined scheduling granularity is by broadcast signaling or by radio Resource control signaling is specified.

11. methods according to claim 1, wherein said signaling indicates at least in part as the radio resource coordinated The uplink resource allocation of a part, wherein specific reference signal structure will be used by described mobile device.

12. methods according to claim 1, wherein by using the bitmap in physical downlink control channel, described Signaling includes the associating of all distribution of described network insertion node, wherein uses the cell identifier of described network insertion node Cyclic Redundancy Code is scrambled, so that the mobile device in neighbor cell can monitor the letter of described network insertion node Order.

13. 1 kinds of devices for communication, including:

For operating the network insertion node of Serving cell to determine description collaboratively with at least one adjacent networks access node The device of the information of the scheduling granularity used at least one community adjacent with described Serving cell, described scheduling granularity bag Include multiple Physical Resource Block；And

For being passed through signaling to by the described network insertion node serve of described Serving cell extremely by described network insertion node A few mobile device sends the instruction to the described scheduling granularity used at least one neighbor cell described, to strengthen The device of the estimation at the receiver of at least one mobile device described.

14. devices according to claim 13, wherein at described receiver use by signaling send to being used Scheduling granularity described instruction for estimate interference covariance matrix.

15. devices according to claim 13, farther include for at least one adjacent networks access node described Determine the device of the orthogonal reference signal radio resource of coordination collaboratively, and be used for by signaling at least one shifting described Dynamic equipment sends the device of the instruction of the orthogonal reference signal radio resource to described coordination.

16. devices according to claim 13, farther include for by using in described network insertion node and institute The information of exchange between at least one adjacent networks access node of stating realizes the device of the coordination to described scheduling granularity, wherein Described information includes the suggestion relevant to the operation of the minizone of described network insertion node.

17. devices according to claim 13, farther include for by using in described network insertion node and institute The information of exchange between at least one adjacent networks access node of stating realizes the device of the coordination to described scheduling granularity, wherein Described information includes the information sharing relevant to the operation of the minizone of described network insertion node.

18. devices according to claim 13, farther include for by exchanging first between network insertion node The index of Physical Resource Block realizes the coordination to described scheduling granularity and is applied to those radio money of described coordination The device of the coordination in source, and wherein number based on Physical Resource Block specifies described granularity.

19. devices according to claim 13, farther include for at least one adjacent networks access node described Determine the device of the orthogonal reference signal radio resource information of coordination collaboratively, wherein by handing between network insertion node Changing the index of orthogonal reference signal to realize described coordination, wherein said index is by described network insertion node reserves For the index carrying out transmitting in the community of described network insertion node or freely used by adjacent networks access node One of index.

20. is to pass through physical down link according to the device described in any one in claim 13-19, wherein said signaling Control dynamic radio resources control one of signaling or semi-static radio resource control signaling that channel sends.

21. devices according to claim 20, wherein said dynamic radio resources controls signaling and specifies predefined tune Spend one of granularity, or the distribution of indicating downlink link circuit resource is a part for the radio resource coordinated, the most predefined tune Degree granularity can be assumed to be used by described mobile device.

22. devices according to claim 21, wherein said predefined scheduling granularity is by broadcast signaling or by wireless Electric resources controls signaling and specifies.

23. devices according to claim 13, wherein said signaling indicates at least in part as the radio money coordinated The uplink resource allocation of the part in source, wherein specific reference signal structure will be used by described mobile device.

24. devices according to claim 13, wherein by using the bitmap in physical downlink control channel, described Signaling includes the associating of all distribution of described network insertion node, wherein uses the cell identifier of described network insertion node Cyclic Redundancy Code is scrambled, so that the mobile device in neighbor cell can monitor the institute of described network insertion node State signaling.

25. are implemented as drilling according to the device described in any one in claim 13-19, wherein said network insertion node The NodeB entered, and wherein with at least one adjacent networks access node described coordinate by X2 interface send letter Order realizes.

26. 1 kinds of methods for communication, including:

Receiving signaling from the network insertion node of Serving cell at mobile device, received signaling includes by described network That access node determines collaboratively with at least one adjacent networks access node, be described in adjacent with described Serving cell at least The information of the scheduling granularity used in one community, described scheduling granularity includes multiple Physical Resource Block；And

Use the described scheduling granularity indicated by described information to strengthen connecing in described mobile device at described mobile device Estimation at receipts machine.

27. methods according to claim 26, wherein when estimating interference covariance matrix, make at described mobile device By described scheduling granularity.

28. methods according to claim 26, farther include: from described network insertion node at described mobile device Receive the signaling information describing the orthogonal reference signal radio resource coordinated.

29. is to pass through physical down link according to the method described in any one in claim 26-28, wherein said signaling Control dynamic radio resources control one of signaling or semi-static radio resource control signaling that channel sends.

30. methods according to claim 29, wherein said dynamic radio resources controls signaling and specifies predefined tune Spend one of granularity, or the distribution of indicating downlink link circuit resource is a part for the radio resource coordinated, the most predefined tune Degree granularity can be assumed to be used by described mobile device, wherein said predefined scheduling granularity by broadcast signaling or Specified by radio resource control signaling.

31. methods according to claim 26, wherein said signaling indicates at least in part as the radio money coordinated The uplink resource allocation of the part in source, wherein specific reference signal structure will be used by described mobile device.

32. methods according to claim 26, wherein by using the bitmap in physical downlink control channel, described Signaling includes the associating of all distribution of network insertion node, wherein uses the cell identifier of described network insertion node right Cyclic Redundancy Code scrambles, so that the mobile device in neighbor cell can monitor the described letter of described network insertion node Order.

33. 1 kinds of devices for communication, including:

For receiving the device of signaling at mobile device from the network insertion node of Serving cell, received signaling includes That determined collaboratively by described network insertion node and at least one adjacent networks access node, be described in and described Serving cell The information of the scheduling granularity used at least one adjacent community, described scheduling granularity includes multiple Physical Resource Block；And

For using the described scheduling granularity indicated by described information to strengthen in described mobile device at described mobile device Receiver at the device of estimation.

34. devices according to claim 33, wherein when estimating interference covariance matrix, make at described mobile device By described scheduling granularity.

35. devices according to claim 33, farther include at described mobile device from described network insertion Node receives the device of the signaling information describing the orthogonal reference signal radio resource coordinated, and wherein said signaling is to pass through thing The dynamic radio resources that reason downlink control channel sends controls one of signaling or semi-static radio resource control signaling, Wherein said dynamic radio resources controls signaling and specifies one of predefined scheduling granularity, or indicating downlink link circuit resource divides Joining a part for the radio resource being coordination, the most predefined scheduling granularity can be assumed to be come by described mobile device Using, wherein said predefined scheduling granularity is specified by broadcast signaling or by radio resource control signaling.

36. devices according to claim 35, it is wireless that wherein said signaling indicates as described coordination at least in part The uplink resource allocation of a part for electric resources, wherein specific reference signal structure will be made by described mobile device With.

37. devices according to claim 33, wherein by using the bitmap in physical downlink control channel, described Signaling includes the associating of all distribution of described network insertion node, wherein uses the cell identifier of described network insertion node Cyclic Redundancy Code is scrambled, so that the mobile device in neighbor cell can monitor the institute of described network insertion node State signaling.

38. 1 kinds of devices for communication, including:

For operating the network insertion node of Serving cell to determine description collaboratively with at least one adjacent networks access node The parts of the information of the scheduling granularity used at least one community adjacent with described Serving cell, described scheduling granularity bag Include multiple Physical Resource Block；

For being passed through signaling to by the described network insertion node serve of described Serving cell extremely by described network insertion node A few mobile device sends the instruction to the described scheduling granularity used at least one neighbor cell described, to strengthen The parts of the estimation at the receiver of at least one mobile device described；And

For determining the portion of the orthogonal reference signal radio resource of coordination collaboratively with at least one adjacent networks access node Part, the wherein said parts for being sent by signaling are further configured to by signaling at least one mobile device described Send the instruction of the orthogonal reference signal radio resource to described coordination.

39. according to the device described in claim 38, wherein by use described network insertion node and described at least one Between adjacent networks access node, the information of exchange realizes the coordination to described scheduling granularity, and wherein said information includes and institute State the suggestion that the minizone operation of network insertion node is relevant.

40. according to the device described in claim 38, wherein by use described network insertion node and described at least one Between adjacent networks access node, the information of exchange realizes the coordination to described scheduling granularity, and described information includes and described net The information sharing that the minizone operation of network access node is correlated with, and wherein by exchanging the first thing between network insertion node The index of reason Resource Block realizes the coordination to described scheduling granularity and is applied to the association of radio resource of described coordination Adjust, and wherein number based on Physical Resource Block specifies described granularity.

41., according to the device described in claim 38, farther include: be used for and at least one adjacent networks access node described Determine the parts of the orthogonal reference signal radio resource information of coordination collaboratively, wherein by handing between network insertion node Changing the index of orthogonal reference signal to realize described coordination, wherein said index is by described network insertion node reserves For the index carrying out transmitting in the community of described network insertion node or freely used by adjacent networks access node One of index.

42. is to pass through physical down link according to the device described in any one in claim 38-41, wherein said signaling Control dynamic radio resources control one of signaling or semi-static radio resource control signaling that channel sends, wherein said dynamic State radio resource control signaling specifies one of predefined scheduling granularity, or the distribution of indicating downlink link circuit resource is to coordinate A part for radio resource, the most predefined scheduling granularity can be assumed to be used, wherein by described mobile device Described predefined scheduling granularity is specified by broadcast signaling or by radio resource control signaling.

43. according to the device described in claim 38, and it is wireless that wherein said signaling indicates as described coordination at least in part The uplink resource allocation of a part for electric resources, wherein specific reference signal structure will be made by described mobile device With.

44. according to the device described in claim 38, wherein by using the bitmap in physical downlink control channel, described Signaling includes the associating of all distribution of described network insertion node, wherein uses the cell identifier of described network insertion node Cyclic Redundancy Code is scrambled, so that the mobile device in neighbor cell can monitor the institute of described network insertion node State signaling.

45. are implemented as drilling according to the device described in any one in claim 38-41, wherein said network insertion node The NodeB entered, and wherein with at least one adjacent networks access node described coordinate by X2 interface send letter Order realizes.