CN101635950B - Method and device for determining positions of cell reference signals - Google Patents

Method and device for determining positions of cell reference signals Download PDF

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Publication number
CN101635950B
CN101635950B CN200910162634.6A CN200910162634A CN101635950B CN 101635950 B CN101635950 B CN 101635950B CN 200910162634 A CN200910162634 A CN 200910162634A CN 101635950 B CN101635950 B CN 101635950B
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csi
position
rs
cell
cells
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CN200910162634.6A
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CN101635950A (en
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戴博
郁光辉
张峻峰
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J11/00Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023Interference mitigation or co-ordination
    • H04J11/005Interference mitigation or co-ordination of intercell interference
    • H04J11/0053Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035Resource allocation in a cooperative multipoint environment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated

Abstract

本发明提供了一种确定小区参考信号位置的方法及装置,从可用作发送不同小区的信道状态信息的参考信号(CSI-RS)的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置;根据各协作小区的标识,确定各协作小区CSI-RS的位置。 The present invention provides a method and an apparatus for determining cell reference position signal, a position reference signal for channel state information transmitted from the different cells may be used (CSI-RS), the respective cooperative cells selected for transmission of the CSI-RS several positions coordinated cell; according to the identifier of each cooperating cell, determining respective coordinated position CSI-RS cells. 通过本发明方法,目标UE明确了多个小区发送CSI参考信号的位置,这样,达到了UE测量多个小区信道状态信息并上报给基站,以使基站用于数据发送的目的,从而保证了多点协作传输和接收(CoMP)技术的应用,达到了提高系统整体性能的目标。 By the process of the present invention, the location of the target UE specific reference signal CSI transmission plurality of cells, so that cells reached the UE measures a plurality of channel state information and reports it to the base station, so the base station for data transmission purposes, to ensure multi- application of coordinated transmission and reception (CoMP) technology to achieve the target improve overall system performance.

Description

一种确定小区参考信号位置的方法及装置 A method for determining the position of the cell and the reference signal means

技术领域 FIELD

[0001] 本发明涉及长期演进(LTE,LongTermEvolution)技术,尤指一种确定小区参考信号位置的方法及装置。 [0001] The present invention relates to a long term evolution (LTE, LongTermEvolution) technology, particularly to a method and an apparatus for determining the position of a reference signal of a cell.

背景技术 Background technique

[0002] 正交频分复用(OFDM)技术本质上是一种多载波调制通信技术,OFDM技术是第四代移动通信中的核心技术之一。 [0002] Orthogonal frequency division multiplexing on (OFDM) technology is essentially a multi-carrier modulation communication technology, OFDM technology is a core technology of fourth generation mobile communication. 在频域上,OFDM的多径信道呈现出频率选择性衰落特性,为了克服这种衰落,将信道在频域上划分成多个子信道,每个子信道的频谱特性都近似平坦, 并且OFDM各个子信道相互正交。 In the frequency domain, OFDM multipath channel exhibits frequency selective fading characteristics, in order to overcome this fading, the channel is divided into a plurality of subchannels in the frequency domain, the spectral characteristics of each subchannel are nearly flat, and each OFDM sub channels are mutually orthogonal. 因此,允许子信道的频谱相互重叠,从而可以很大限度地利用频谱资源。 Therefore, it subchannels allowing spectral overlap, thus greatly limits the use of spectrum resources.

[0003] 多输入多输出(MIMO)技术可以增大系统容量、提高传输性能,并能很好和其它物理层技术融合,因此成为B3G和4G移动通信系统的关键技术。 [0003] Multiple Input Multiple Output (MIMO) techniques can increase system capacity, improve transmission performance, and good integration with other physical layer technologies, and therefore become a key technology B3G and 4G mobile communication system. 但是,在信道相关性强时,由多径信道带来的分集增益和复用增益大大降低,造成了MMO系统性能的大幅下降。 However, when the channel correlation is strong, multipath channel brings diversity gain and multiplexing gain is greatly reduced, resulting in a substantial decline in system performance MMO. 为了消除信道相关性的影响,MIMO预编码方法作为一种高效的MIMO复用方式,通过收发端的预编码处理将MMO信道化成多个独立的虚拟信道,保证了MMO系统在各种环境下的稳定性能。 In order to eliminate the effects of the channel correlation, MIMO pre-coding method as an efficient MIMO multiplexing manner, by pre-coding transceiver end processing MMO channel into a plurality of separate virtual channels to ensure the stability MMO system in a variety of environments performance.

[0004]LTE系统是第三代伙伴组织的重要计划。 [0004] LTE system is an important organization of the Third Generation Partnership Program. 图1为LTE系统频分双工(FDD,Frequency DivisionDuplex)模式和时分双工(TDD,TimeDivisionDuplex)模式的帧结构示意图,如图1所不,FDD模式的帧结构中,一个IOms的无线帧(radioframe)由二十个长度为0. 5ms, 编号0~19的时隙(slot)组成,时隙2i和2i+l组成长度为Ims的子帧(subframe)i;TDD 模式的帧结构中,一个IOms的无线帧(radioframe)由两个长为5ms的半帧(halfframe) 组成,一个半帧包含5个长为Ims的子帧(subframe)。 Figure 1 is a LTE system, a frequency division duplex (FDD, DivisionDuplex Frequency) mode and Time Division Duplex frame schematic (TDD, TimeDivisionDuplex) mode configuration, are not shown in Figure 1, the frame structure in the FDD mode, a radio frame IOms ( RadioFrame) by a length of twenty 0. 5ms, time slot number (slot) 0 ~ 19 composition of slots 2i and 2i + l composition length Ims subframe (subframe) i; a frame structure in the TDD mode, IOms a radio frame (radioframe) 5ms half-frame (halfframe) consists of two long, a half-frame includes 5 sub-frame length Ims (subframe). 子帧i定义为2个长为0. 5ms的时隙2i和2i+l。 Subframe i is defined as a length of 0. 5ms two slots 2i and 2i + l. 当系统采用常规循环前缀时,一个时隙包含7个长度的上/下行符号;当系统采用扩展循环前缀时,一个时隙包含6个长度的上/下行符号。 When the system uses the normal cyclic prefix, one time slot containing the uplink / downlink symbols of length 7; when the system uses an extended cyclic prefix, one time slot contains 6 length / downlink symbols. 图2为LTE系统的系统带宽为5MHz时的物理资源块的结构示意图,如图2所示,一个资源单元(RE,ResourceElement) 为一个OFDM符号中的一个子载波,而一个下行资源块(RB,ResourceBlock)由连续12个子载波和连续7个(扩展循环前缀时为6个)OFDM符号构成,在频域上为180kHz,时域上为一个一般时隙的时间长度,在进行资源分配时,以资源块为基本单位进行分配。 FIG 2 is a system bandwidth of the LTE system is a schematic diagram of the structure of the physical resource blocks at 5MHz, shown in Figure 2, a resource element (RE, ResourceElement) is one subcarrier of one OFDM symbol, while a downlink resource block (RB , ResourceBlock) consists of 12 continuous subcarriers and consecutive 7 (when the cyclic prefix 6) the OFDM symbol when the frequency domain is 180kHz, generally a length of time slot in the time domain, the resource allocation is performed, resource allocation block as the basic unit.

[0005]LTE系统支持4天线的MMO应用,相应的天线端口#0、天线端口#1、天线端口#2和天线端口#3均采用全带宽的小区公有参考信号(CRS,Cell-specificreference signals)方式。 [0005] LTE system supports MMO application 4 of the antenna, a respective antenna port # 0, the antenna ports # 1, antenna port # 2 and antenna port # 3 are all-bandwidth cell public reference signals (CRS, Cell-specificreference signals) the way. 图3a为LTE系统中,当循环前缀为常规循环前缀时,小区公有参考信号在物理资源块中的位置的示意图,这些公有参考信号在物理资源块中的位置如图3a所示; 图3b为LTE系统中,当循环前缀为扩展循环前缀时,小区公有参考信号在物理资源块中的位置的示意图,这些公有参考信号在物理资源块中的位置如图3b所示,在图3a和图3b 中,横坐标表示时域,纵坐标表示频域。 Figure 3a is a LTE system, when the cyclic prefix is ​​a normal cyclic prefix, a schematic view of the position of the public cell reference signals in a physical resource block, the reference signal positions in these public physical resource blocks shown in Figure 3a; Figure 3b is a in the LTE system, when the cyclic prefix is ​​an extended cyclic prefix, a schematic view of the reference position signal public cell in the physical resource block, the reference signal positions in these public physical resource blocks shown in FIG. 3b, 3a and 3b in FIG. , the abscissa represents time domain, ordinate represents frequency domain. 另外,还有一种用户专有的参考信号(UE-specific referencesignals),该参考信号仅在用户专有的物理共享信道(PDSCH,Physical downlinksharedchannel)所在的时频域位置上传输。 Further, there is a user-specific reference signal (UE-specific referencesignals), the reference signal is transmitted only when the frequency domain position of the user-specific physical shared channel (PDSCH, Physical downlinksharedchannel) is located. 其中小区公有参考信号功能包括对下行信道质量测量和下行信道估计(解调)。 Wherein the cell comprises a public function of the reference signal quality measurements for a downlink channel and the downlink channel estimation channel (demodulated).

[0006]高级的LTE(LTE-Advanced,Further Advancements for E-UTRA)是LTERelease-8 的演进版本。 [0006] Advanced LTE (LTE-Advanced, Further Advancements for E-UTRA) is an evolved version of LTERelease-8. 除满足或超过3GPP TR 25. 913'Requirements for EvolvedUTRA(E-UTRA) and Evolved UTRAN (E-UTRAN) "的所有相关需求外,还要达到或超过ITU-R提出的MT-Advanced的需求。其中,与LTE Release-8后向兼容的需求是指:LTE Release-8的终端可以在LTE-Advanced的网络中工作;LTE-Advanced的终端可以在LTE Release-8的网络中工作。 In addition to meeting or exceeding 3GPP TR 25. 913'Requirements for EvolvedUTRA (E-UTRA) and Evolved UTRAN (E-UTRAN) "all relevant requirements, but also meet or exceed the needs of MT-Advanced ITU-R proposed which with the LTE Release-8 refers to backward compatibility requirements: LTE Release-8 terminals can operate in the LTE-Advanced network; LTE-Advanced terminal can operate in a network in the LTE Release-8.

[0007] 另外,LTE-Advanced应能在不同大小的频谱配置,包括比LTERelease-8更宽的频谱配置(如IOOMHz的连续的频谱资源)下工作,以达到更高的性能和目标峰值速率。 [0007] In addition, LTE-Advanced spectrum configuration can be different sizes, comprising a working ratio LTERelease-8 wider spectrum configuration (e.g., consecutive IOOMHz spectrum resources) to achieve higher performance and a target peak rate. 由于LTE-Advanced网络需要能够接入LTE用户,所以其操作频带需要覆盖目前LTE频带,而在这个频段上已经不存在可分配的连续IOOMHz的频谱带宽了。 Since the LTE-Advanced LTE network need to access the user, so its operating band required to cover the current LTE band, the consecutive IOOMHz spectral bandwidth can be allocated does not exist in this band. 因此,LTE-Advanced需要解决的一个直接技术是将几个分布在不同频段上的连续分量载频(Componentcarrier)即频谱聚合起来形成LTE-Advanced可以使用的100MHz带宽。 Thus, a direct technical LTE-Advanced is to be solved in several successive component distribution different carrier frequency bands (Componentcarrier) i.e., to form a spectrum aggregation LTE-Advanced bandwidth of 100MHz may be used. 即对于聚集后的频谱,被划分为n个分量载频,每个分量载频内的频谱是连续的。 That is, for the aggregated spectrum, is divided into n component carrier, the spectrum of each component carrier is continuous.

[0008]LTE-Advanced下行最多可以支持8天线的应用;而且LTE-Advanced作为支持8天线的应用以及多点协作传输和接收(CoMP,Coordinatedmultiplepointtransmissionand reception)、双流(Beamforming)等技术的使用下LTE-Advanced下行参考信号的设计基本框架(Wayforward),将对LTE-Advanced操作的下行参考信号定义为两种类型的参考信号:面向TOSCH解调的参考信号和面向信道状态信息(CSI,ChannelStatusInformation) 产生的参考信号。 [0008] LTE-Advanced downlink antennas can support up to 8 applied; and LTE-Advanced as a coordinated multi-point applications and supports transmission and reception antenna 8 (CoMP, Coordinatedmultiplepointtransmissionand reception), using the double (Beamforming) technologies such as LTE- design of the basic framework (Wayforward) advanced downlink reference signal, downlink reference signal will be defined in LTE-advanced operation of two types of reference signals: reference signal for demodulation and for TOSCH channel state information (CSI, ChannelStatusInformation) produced the reference signal.

[0009]CoMP技术实质为多天线技术的扩展,多个小区的基站协同向目标用户终端(UE) 发送数据,因此,目标UE需要知道多个小区发送CSI的参考信号(CSI-RS)的位置,这样,UE 才能测量多个小区信道状态信息并上报给基站,以使基站用于数据发送,从而实现CoMP技术。 [0009] CoMP technique substantial extension of the multi-antenna technology, the base station transmits data of a plurality of cooperative cells to a destination user equipment (UE), and therefore, needs to know the location of the target UE reference signal (CSI-RS) in a plurality of cells transmitting CSI so, the UE can measure a plurality of cells and report channel state information to the base station, so the base station for data transmission, thereby achieving CoMP technique.

[0010]目前,还没有关于确定多个小区CSI-RS位置的方案,所以,本发明给出了一种小区参考信号位置确定的发送方法,从而,保证了CoMP技术的应用,达到提高系统整体性能的目标; [0010] Currently there is no plurality of cells on the determination of the position of the CSI-RS embodiment, therefore, the present invention presents a method of transmitting cell determines the position of the reference signal, thereby to ensure the application of CoMP technology, to improve the overall system performance targets;

发明内容 SUMMARY

[0011] 有鉴于此,本发明的主要目的在于提供一种确定小区参考信号位置的方法,能够保证CoMP技术的应用,提1¾系统整体性能目标。 [0011] In view of this, the main object of the present invention is to provide a method for determining the position of a reference signal of a cell, to ensure application of CoMP technology, provide overall system performance goals 1¾.

[0012] 本发明的另一目的在于提供一种确定小区参考信号位置的装置,能够保证CoMP 技术的应用,提高系统整体性能目标。 [0012] Another object of the present invention is to provide an apparatus for determining the position of a cell reference signal, to ensure the application of the CoMP technology to improve the overall performance of the target system.

[0013] 为达到上述目的,本发明的技术方案是这样实现的: [0013] To achieve the above object, the technical solution of the present invention is implemented as follows:

[0014] 一种确定小区参考信号位置的方法,该方法包括: [0014] A cell determination method of the reference position signal, the method comprising:

[0015] 确定小区的信道状态信息的参考信号CSI-RS的位置,用户设备UE根据CSI-RS的位置测量多个小区信道状态信息并上报给基站。 [0015] The channel state determining cell reference signals CSI-RS position information, the user equipment UE measures a plurality of cells in accordance with the position of the channel state information CSI-RS and reported to the base station.

[0016] 所述小区为协作小区;所述确定小区的信道状态信息的参考信号CSI-RS的位置包括: [0016] The cell as a cooperating cell; said cell determining channel state information reference signal CSI-RS position comprises:

[0017] 从可用作发送不同小区的信道状态信息的参考信号CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置; CSI-RS position of [0017] channel state transmitted from the different cells may be used as the reference signal information in each cooperative transmission cells selected for the CSI-RS cells cooperating several positions;

[0018] 根据各协作小区的标识,确定各协作小区CSI-RS的位置。 [0018] The identity of each cooperating cell, determining respective coordinated position CSI-RS cells.

[0019] 所述当前可用作发送不同小区的CSI-RS的位置顺序编号为kpk2,…,kn,所述选择用于传输各协作小区CSI-RS的协作小区数个位置包括: [0019] The cell current may be used to transmit different positions of the CSI-RS sequence number kpk2, ..., kn, the selection for cooperative transmission cell coordinated cells CSI-RS several positions comprising:

[0020] 所述传输m个小区CSI-RS的m个位置为kh,kh+1,…,kh+m_1;所述m个位置为连续的; [0020] The transmission of the m cells of the m CSI-RS position kh, kh + 1, ..., kh + m_1; the m consecutive position;

[0021] 其中,m表示各协作小区,h为固定值或者为预先设置的。 [0021] where, m represents the coordinated cells, h is set in advance to a fixed value or a.

[0022] 当所述h为固定值时,其取值为0,或者nm; [0022] when h is a fixed value, its value is 0, or nm;

[0023] 其中,n表示当前可用作发送不同小区的CSI-RS的位置的个数。 [0023], n represents the number of positions currently available as a CSI-RS transmitted in different cells.

[0024] 当所述h为预先设置的时,所述h的取值由基站通过信令通知目标UE。 [0024] when h is a preset value of the h notifies the target UE by the base station through signaling.

[0025] 所述选择用于传输各协作小区CSI-RS的协作小区数个位置包括: [0025] The cells selected for transmission of each CSI-RS cooperating coordinated cell comprising several positions:

[0026] 对所有n个位置选取m个位置的组合进行编号,所述任意m个位置都唯一的对应一个编号索引r,每个编号索引r唯一的对应m个位置; [0026] the selection of all the n positions composition m numbered positions, the positions are m any of a number corresponding to a unique index r, r for each index number corresponding to the unique position m;

[0027] 根据m个小区CSI-RS的位置,基站选取一个编号索引发送给目标UE; [0027] An index number is sent to the target UE according to the m-th position of the CSI-RS cells, select the base station;

[0028] 目标UE根据接收到的编号索引r,以及编号索引r和位置的对应关系,获得m个位置信息; [0028] the target UE according to the received index number r, and the correspondence between the index number and position r, m obtain location information;

[0029] 其中,n表示当前可用作发送不同小区的CSI-RS的位置的个数;m表示各协作小区。 [0029], n represents the position number of different CSI-RS transmission may be used as the current cell; m represents coordinated cells.

[0030] 所述当前可用作发送不同小区的CSI-RS的位置顺序编号为kpk2,…,kn,选取的m个位置为&,纹,…,紋,其中,1彡sk<n,sk<sk+1; [0030] The sequence numbers may be used as the current location of cells transmit different CSI-RS is kpk2, ..., kn, as selected locations m &, pattern, ..., pattern, wherein 1 San sk <n, sk <sk + 1;

Figure CN101635950BD00071

[0032] 所述m个小区CSI-RS的m个位置的编号索引r由基站通过信令传输给目标UE。 [0032] The CSI-RS cells of m number of index positions m R & lt transmitted to the target UE by the base station through signaling.

[0033] 所述m个小区CSI-RS的m个位置通过m个信令传输,每个信令表示一个小区的CSI-RS位置。 [0033] the m cells of the CSI-RS locations m by the m-th signaling, each signaling indicates the position of a CSI-RS cell.

[0034] 确定各协作小区CSI-RS的位置包括:根据基站发送的m个小区标识的顺序,确定小区CSI-RS的位置; [0034] determining respective coordinated position CSI-RS cells comprising: the m-th order transmitted by cell base station identification, determines the position of the CSI-RS cells;

[0035] 或者,按照小区标识的大小将所述m个小区排序,根据排序后的位置确定小区CSI-RS的位置。 [0035] Alternatively, the cell identifier according to the size of the m cell sorting, determining the position of the CSI-RS cells sorted according to the position.

[0036] 所述根据基站发送的m个小区标识的顺序,确定小区CSI-RS的位置具体包括: [0036] The sequence of the m th base station transmits a cell identifier of the cell to determine the position of the CSI-RS comprises:

[0037] 当所述某小区ID在m个小区标识发送的顺序为g时,该小区对应的CSI-RS的位置为所述m个位置中的第g个位置。 [0037] When the sequence of a cell ID identifier in the m-th cell is transmitted g, CSI-RS of the cell corresponding to the position of the m position to the first position g.

[0038] 按照小区标识的大小将所述m个小区排序,根据排序后的位置确定小区CSI-RS的位置具体包括: [0038] according to the size of the cell identity of m cell sorting, cell determines the CSI-RS comprises a position according to the position after the sort:

[0039] 当所述某小区ID在排序中的位置为g时,该小区对应的CSI-RS的位置为所述m 个位置中的第g个位置。 [0039] When the position of the CSI-RS of a cell ID in the ordering position is g, when the cell corresponding to the m locations in the g-th position.

[0040] 所述确定各协作小区CSI-RS的位置为k(tolID+X)mmlm),其中,Cell_ID为小区标识, m表示各协作小区;mod为取余运算符; [0040] The determination of each CSI-RS cells cooperating location k (tolID + X) mmlm), wherein, Cell_ID a cell identifier, m denotes the respective cooperative cells; is a MOD operator Remainder;

[0041] X为固定值,或者X的取值由基站通过信令通知目标UE。 [0041] X is a fixed value, or the value of X notifies the target UE by the base station through signaling.

[0042] 一种确定小区参考信号位置的装置,包括选择模块和确定模块,其中, [0042] An apparatus for determining the position of a cell reference signal, comprising a selection module and a determining module, wherein,

[0043] 选择模块,用于从可用作发送不同小区的CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置; [0043] selection module, from a position for the CSI-RS transmission may be used in different cells, each cooperative transmission cells selected for the CSI-RS cells cooperating several positions;

[0044] 确定模块,用于根据各协作小区的标识,确定各协作小区CSI-RS的位置。 [0044] determination module for identifying the respective cell cooperation, the cooperating cell is determined for each position of the CSI-RS.

[0045] 对于所述小区中的每个小区,该小区中所有的CSI-RS位于一个子帧中的一个或者两个正交频分复用OFDM符号上; [0045] For each cell in the cell, all the cells in a CSI-RS subframe or a two orthogonal frequency division multiplexed OFDM symbols;

[0046] 所述小区为单小区或协作小区。 The [0046] as a single cell or cell cooperating cells.

[0047] 当所述子帧采用常规循环前缀时,所述OFDM符号为子帧中第二个时隙的第二个、 第三个、第四个OFDM符号中的一个或者两个OFDM符号; [0047] When the subframe uses the normal cyclic prefix of the OFDM symbol of the second subframe, third, and fourth OFDM symbols of the second slot in one or two OFDM symbols;

[0048] 当所述子帧采用扩展循环前缀时,所述OFDM符号为子帧中第二个时隙的第二个、 第三个OFDM符号中的一个或者两个OFDM符号。 The second, third OFDM symbol [0048] When the sub-frame using an extended cyclic prefix of the OFDM symbol of the second subframe in the time slots of one or two OFDM symbols.

[0049] 当所述CSI-RS与天线端口#5的参考信号在相同的物理子载波上发送时,仅发送所述CSI-RS; [0049] When the CSI-RS antenna port # 5 is the reference signal sent on the same physical sub-carriers, the CSI-RS transmission only;

[0050] 当所述CSI-RS与发送给R8版本终端的物理共享信道承载的数据在相同的物理子载波上发送时,仅发送所述CSI-RS; [0050] When the CSI-RS transmitted to data sharing and R8 physical channel carrying the terminal version is transmitted on the same physical sub-carriers, transmit only the CSI-RS;

[0051] 发送给R8版本以上终端的物理共享信道不在所述CSI-RS所在子载波上映射。 [0051] R8 version to a more terminals physical shared channel is not located on said sub-carrier mapping CSI-RS.

[0052] 基站根据所述各协作小区的CSI-RS位置,按照相应顺序发送各协作小区的标识。 [0052] The CSI-RS base position of the coordinated cells, the identification of each cooperative transmission cell in accordance with the corresponding order.

[0053] 从上述本发明提供的技术方案可以看出,确定小区的信道状态信息的参考信号CSI-RS的位置,用户设备UE根据CSI-RS的位置测量多个小区信道状态信息并上报给基站。 [0053] As can be seen from the technical solution of the present invention provides a position determining cell channel state reference signal CSI-RS information, the user equipment UE measures a plurality of cells channel state information according to the position of the CSI-RS and reported to the base station . 当小区为协作小区时,从可用作发送不同小区的CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置;根据各协作小区的标识,确定各协作小区CSI-RS的位置。 When the position of the CSI-RS cells cooperative cells is transmitted from different cells may be used in each cooperative transmission cells selected for the CSI-RS cells cooperating several positions; according to the identifier of each cooperating cell, determining respective coordinated cells CSI-RS position. 通过本发明方法,目标UE明确了多个小区发送CSI参考信号的位置,这样,达到了UE测量多个小区信道状态信息并上报给基站,以使基站用于数据发送的目的,从而保证了CoMP技术的应用,达到了提高系统整体性能的目标。 By the process of the present invention, the location of the target UE specific reference signal CSI transmission plurality of cells, so that cells reached the UE measures a plurality of channel state information and reports it to the base station, so the base station for data transmission purposes, to ensure the CoMP application of technology to achieve the goal of improving overall system performance.

附图说明 BRIEF DESCRIPTION

[0054] 图1为LTE系统FDD模式和TDD模式的帧结构示意图; [0054] FIG. 1 is a FDD and LTE system schematic view of the TDD mode frame;

[0055] 图2为LTE系统的系统带宽为5MHz时的物理资源块的结构示意图; [0055] FIG. 2 is a system bandwidth of the LTE system is a schematic diagram of the structure of the physical resource blocks at 5MHz;

[0056] 图3a为LTE系统中,当循环前缀为常规循环前缀时,小区公有参考信号在物理资源块中的位置的示意图; [0056] Figure 3a is a LTE system, when the cyclic prefix is ​​a normal cyclic prefix, cell position signal schematic public physical resource block in the reference;

[0057] 图3b为LTE系统中,当循环前缀为扩展循环前缀时,小区公有参考信号在物理资源块中的位置的示意图; [0057] Figure 3b is a LTE system, when the cyclic prefix is ​​an extended cyclic prefix, a schematic view of the position signal public cell in the physical resource block in a reference;

[0058] 图4为本发明确定协作小区参考信号位置的方法的流程图; [0058] FIG 4 is a flowchart cell cooperative method of determining the reference position signal of the present invention;

[0059] 图5为本发明确定协作小区参考信号位置的装置的组成结构示意图。 [0059] FIG. 5 is a schematic structure of an apparatus consisting of a cell cooperating reference signal to determine the location of the present invention.

具体实施方式 Detailed ways

[0060] 确定小区的信道状态信息的参考信号CSI-RS的位置,用户设备UE根据CSI-RS的位置测量多个小区信道状态信息并上报给基站。 [0060] The channel state determining cell reference signals CSI-RS position information, the user equipment UE measures a plurality of cells in accordance with the position of the channel state information CSI-RS and reported to the base station.

[0061]图4为本发明确定协作小区参考信号位置的方法的流程图,如图4所示,包括: [0061] FIG 4 is a flowchart cell cooperative method of determining the reference position signal of the present invention, shown in Figure 4, comprising:

[0062] 步骤400:从可用作发送不同小区的CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置。 [0062] Step 400: the position of a CSI-RS transmitted from different cells may be used in each cooperative transmission cells selected for the CSI-RS cells cooperating several positions.

[0063] 假设,当前可用作发送不同小区的CSI-RS的位置顺序编号为kl,k2,. ..,kn,CoMP 集中相关的小区ID为ID1,ID2, . . .,IDm,其中,m,n为整数。 [0063] Suppose that the current cells may be used to transmit different positions of the CSI-RS sequence number kl, k2 ,. .., kn, CoMP cell ID associated concentrated ID1, ID2,..., IDm, wherein m, n are integers.

[0064] 本步骤中,选择用于传输各协作小区CSI-RS的协作小区数个位置具体为: [0064] In this step, the coordinated cells selected for transmission CSI-RS several positions coordinated cell is specifically:

[0065] 一种实现方法是:传输m个小区CSI-RS的m个位置为kh,kh+1,…,Ivlrt,这m个位置为连续的m个位置。 [0065] A method is implemented: the m cells transmitting the CSI-RS for the m locations kh, kh + 1, ..., Ivlrt, the m successive positions of the m position. 其中,h为固定值,比如0或nm等;或者,h为预先设置的,其取值由基站通过信令通知目标UE。 Wherein, h is a fixed value, such as 0 nm, or the like; or, h is set in advance, the value which notifies the target UE by the base station through signaling.

[0066] 另一种实现方法是:对所有n个位置选取m个位置的组合进行编号,保证任意m个位置都唯一的对应一个编号索引,根据m个小区CSI-RS的位置,基站选取一个编号索引发送给目标UE;目标UE根据接收到的编号索引,以及编号索引和位置的对应关系,获得m个位置信息。 [0066] Another implementation is: selecting a combination of m number of positions for all the n positions are numbered to ensure that any m number of positions are corresponding to a unique index number to select a location m according to a CSI-RS cells, the base station index number to the target UE; target UE according to the received index number, and the correspondence between the index number and position, to obtain location information of m.

[0067] 假设,选取的m个位置为\,心2,…,\,1彡Sk彡n,sk<sk+1,那么,编号索引r如公式⑴所示: [0067] Suppose, for the selected locations m \, heart 2, ..., \, 1 San San Sk n, sk <sk + 1, then the index number r as shown in equation ⑴:

Figure CN101635950BD00091

[0072] 传输m个小区CSI-RS的m个位置的编号索引由基站通过信令通知给UE。 [0072] The transmission cell number index m of m positions CSI-RS notifies the UE by the base station through signaling. m个小区CSI-RS的m个位置通过m个信令传输,每个信令表示一个小区的CSI-RS位置。 m plots the CSI-RS locations m by the m-th signaling, each signaling indicates the position of a CSI-RS cell.

[0073] 步骤401 :根据各协作小区的标识,确定各协作小区CSI-RS的位置。 [0073] Step 401: The identifier of each cooperating cell, determining respective coordinated position CSI-RS cells.

[0074] 本步骤的具体实现有以下两种方法: [0074] The specific implementation of the present method has the following two steps:

[0075] 第一种方法,根据基站发送的m个小区标识的顺序,也就是说,UE接收到的m个小区标识的顺序,确定小区CSI-RS的位置。 [0075] A first method, according to the order of m by the base station cell identifier, i.e., the UE receives the cell identification of the m order to determine the position of the CSI-RS cells. 比如:小区IDi在m个小区标识发送的顺序为g, 那么,其对应的CSI-RS的位置为所述m个位置中的第g个位置。 For example: cells in sequence IDi of m cell identification transmitted is g, then, CSI-RS position corresponding to the position of the m the g-th position.

[0076] 基站(eNB)需要根据m个小区的CSI-RS位置,按照相应顺序发送m个小区标识; [0076] The base station (eNB) requires CSI-RS cells according to the position of m, m transmits a cell identification in accordance with the corresponding order;

[0077] 第二种方法,按照小区标识的大小将所述m个小区排序,根据排序后的位置确定小区CSI-RS的位置。 [0077] The second method, according to the size of the cell identity of m cell sorting, determining the position of the CSI-RS cells sorted according to the position. 比如:小区IDi在上述排序中的位置为g,那么,其对应的CSI-RS的位置为所述m个位置中的第g个位置。 For example: the position of the cell IDi of the above sort is g, then, CSI-RS position corresponding to the position of the m the g-th position.

[0078] 除了图3所示的方法外,本发明还提供一种确定小区参考信号的方法。 [0078] In addition to the method shown in FIG. 3, the present invention also provides a method of determining a reference signal of a cell.

[0079] 首先,从可用作发送不同小区的CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置。 [0079] First, the position of the CSI-RS transmitted from different cells may be used in each cooperative transmission cells selected for the CSI-RS cells cooperating several positions.

[0080] 然后,假设,当前可用作发送不同小区的CSI-RS的位置为kl,k2, ...,kn,CoMP集中相关的小区ID为ID1,ID2, . . .,IDm,其中,m,n为整数;小区标识为Cell_ID,其对应的CSI-RS的位置为k ((cell-ID+x)modm) ' 其中,mod为取余运算符;x为固定值,比如0等;或者,x的取值由基站通过信令通知目标UE。 [0080] Then, assuming that the current position of the CSI-RS transmission may be used for different cells kl, k2, ..., kn, CoMP cell ID associated concentrated ID1, ID2,..., IDm, wherein m, n are integers; cell identified as Cell_ID, CSI-RS position corresponding to k ((cell-ID + x) modm) 'wherein, mod is the modulo operator; x is a fixed value, such as 0 and the like; Alternatively, the value of x notifies the target UE by the base station through signaling.

[0081] 一个小区所有的CSI-RS位于一个子帧中的一个或者两个OFDM符号上。 [0081] All cell a CSI-RS subframe is located on a one or two OFDM symbols. 这里,小区是指单小区或协作小区。 Here, the cell refers to a single cell or cell collaboration.

[0082] 在子帧采用常规循环前缀时,所述OFDM符号为子帧中第二个时隙的第二个、第三个、第四个OFDM符号中的一个或者两个OFDM符号; [0082] In subframe uses the normal cyclic prefix of the OFDM symbol of the second subframe, third, and fourth OFDM symbols of the second slot in one or two OFDM symbols;

[0083] 在子帧采用扩展循环前缀时,所述OFDM符号为子帧中第二个时隙的第二个、第三个OFDM符号中的一个或者两个OFDM符号。 When the [0083] frame using an extended cyclic prefix sub, the OFDM symbol or two OFDM symbols of a subframe, the second, the third OFDM symbol in the second slot.

[0084] 当CSI-RS与天线端口#5的参考信号在相同的物理子载波上发送时,仅发送CSI-RS,不发送天线端口#5的参考信号,即打掉(Drop)所述子载波上天线端口#5的参考信号。 [0084] When the CSI-RS antenna port # 5 is the reference signal sent on the same physical sub-carriers, transmit only CSI-RS, an antenna port does not transmit the reference signal # 5, i.e. destroyed (the Drop) of the sub a carrier reference signal antenna port # 5.

[0085] 当发送给R8版本终端的物理共享信道承载的数据与CSI-RS在相同的物理子载波上发送时,仅发送CSI-RS,不发送所述物理共享信道承载的数据; [0085] When data is transmitted to the terminal version R8 physical shared channel carrying the CSI-RS is transmitted on the same physical sub-carriers, transmit only CSI-RS, does not transmit the data carried by a physical shared channel;

[0086] 发送给R8版本以上终端的物理共享信道不在CSI-RS所在子载波上映射。 [0086] R8 version to a more terminals physical shared channel is not located on the CSI-RS subcarrier mapping.

[0087] 通过本发明方法,明确了小区参考信号的位置,从而保证了CoMP技术的应用,达至1J了提商系统整体性能的目标。 [0087] by the method of the present invention, the reference signal specific cell position, thus ensuring the application of CoMP technology, to achieve a target overall performance 1J mentioned systems commercially.

[0088] 针对本发明方法,还提供一种确定小区参考信号位置的装置,图5为本发明确定协作小区参考信号的装置的组成结构示意图,如图5所示,包括选择模块和确定模块,其中, [0088] for the method of the present invention there is provided apparatus for determining the position of a cell reference signal, FIG. 5 of the present invention, a structure diagram of the coordinated cell to determine the reference signal means, shown in Figure 5, comprises a selection module and a determining module, among them,

[0089] 选择模块,用于从可用作发送不同小区的CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置。 [0089] selection module, configured to send a location different from the cell used as a CSI-RS in each cooperative transmission cells selected for the CSI-RS cells cooperating several positions.

[0090] 确定模块,用于根据各协作小区的标识,确定各协作小区CSI-RS的位置。 [0090] determination module for identifying the respective cell cooperation, the cooperating cell is determined for each position of the CSI-RS.

[0091] 下面结合实施例对本发明方法进行举例描述。 [0091] Next, the method of the present invention will be described in conjunction with example embodiments.

[0092] 第一实施例,假设当前可用作发送不同小区的CSI-RS位置为kl,k2,. ..,kn,C〇MP 集中相关的小区标识为ID1,ID2,• • •,IDm,(m<n,且,IDl<ID2 <• • •<IDm),那么,小区IDi的CSI-RS位置为k(h+i),其中,1彡i彡m,h,m,n为整数。 [0092] the first embodiment, assume that the current cell may be used to transmit different CSI-RS position kl, k2 ,. .., kn, C〇MP concentration is related cell identity ID1, ID2, • • •, IDm , (m <n, and, IDl <ID2 <• • • <IDm), then the cell IDi of the CSI-RS position k (h + i), where 1 San i San m, h, m, n is integer.

[0093] 也就是说,将所有CoMP集中小区按照小区标识的大小排序,然后按照排序后的顺序依次映射到相应可用CSI-RS位置上。 [0093] In other words, all the cells in the CoMP set sorted according to the size of a cell identifier, and then sorted according to the sequence are sequentially mapped to corresponding positions on the available CSI-RS.

[0094] 其中,h为固定值,比如0或nm等;或者,h的取值由基站通过信令通知给目标UE。 [0094] wherein, h is a fixed value, such as 0 nm, or the like; or, h values ​​informs the target UE by the base station through signaling.

[0095] 第二实施例,假设按照UE接收小区标识的顺序,CoMP集中相关的小区标识为ID1, ID2,...,IDm,当前可用作发送不同小区的CSI-RS位置为kl,k2,...,kn,那么,小区IDi的CSI-RS位置为k(h+i),其中,1彡i彡m,h,m,n为整数。 [0095] The second embodiment, it is assumed in the order of cell identification received UE, CoMP-related cell concentration labeled ID1, ID2, ..., IDm, the current cell may be used to transmit different CSI-RS position kl, k2 , ..., KN, then the cell IDi of the CSI-RS position k (h + i), wherein i San San 1 m, h, m, n are integers.

[0096] 其中,h为固定值,比如0或者nm等;或者,h的取值由基站通过信令通知给目标UE。 [0096] wherein, h is a fixed value, such as 0 nm, or the like; or, h values ​​informs the target UE by the base station through signaling.

[0097] 基站(eNB)需要根据m个小区的CSI-RS位置,按照相应顺序发送m个小区标识; [0097] The base station (eNB) requires CSI-RS cells according to the position of m, m transmits a cell identification in accordance with the corresponding order;

Figure CN101635950BD00111

[0104] 第三步;如果不成立,执行第四步; [0104] The third step; if not true, execute the fourth step;

[0105] 第四步:设置Sk= X, Xmin= sk+l,r=rp; [0105] The fourth step: setting Sk = X, Xmin = sk + l, r = rp;

[0106] 第五步:判断k等于m-1是否成立,如果成立,输出&,心2,,结束解码过程;如果不成立,设置k=k+l,返回执行第二步。 [0106] Fifth Step: determining k is equal to m-1 is established, if established, & output, heart 2,, the decoding process ends; if not satisfied, set k = k + l, return to the second step.

[0107] 首先,对所有n个位置选取m个位置的组合进行编号,保证任意m个位置都唯一的对应一个编号索引r,根据m个小区CSI-RS的位置,基站选取一个编号索引r发送给目标UE,目标UE根据接收到编号索引r,以及编号索引r和位置的对应关系,获得m个位置信息。 [0107] First, to select a combination of m number of positions for all the n positions are numbered to ensure that any m number of positions are numbered index unique mapping r, the position of the m cells a CSI-RS, the base station selecting a numbering index r transmission the target UE, the target UE according to the received index number r, and the correspondence between the index number and position r, m obtain location information.

[0108] 然后,UE根据接收到的m个小区标识的顺序,确定小区CSI-RS的位置。 [0108] Then, the UE according to the order of the m received cell identification, to determine the position of the CSI-RS cells. 即,小区IDi在m个小区标识发送顺序为g,则,其对应的CSI-RS的位置为所述m个位置中第g个位置。 That is, in the cell IDi of m transmitting cell identification sequence is g, then, CSI-RS position corresponding to the first position of the m th position g.

[0109] 基站(eNB)需要根据m个小区的CSI-RS位置,按照相应顺序发送m个小区标识; [0109] base station (eNB) requires CSI-RS cells according to the position of m, m transmits a cell identification in accordance with the corresponding order;

[0110] 或者, [0110] Alternatively,

[0111] 按照小区标识的大小将所述m个小区排序,根据排序后的位置确定小区CSI-RS的位置;即,小区IDi在上述排序中的位置为g,则,其对应的CSI-RS的位置为所述m个位置中第g个位置。 [0111] according to the size of the cell identity of m cell sorting, determining the position of the CSI-RS cells sorted according to the position; i.e., a cell position in the above-described ordering IDi is g, then, their corresponding CSI-RS position to the first position of the m th position g.

[0112] 第四实施例,假设CoMP集中相关的小区标识为ID1,ID2, ...,IDm,当前可用作发送不同小区的CSI-RS位置为kl,k2,…,kn,那么,小区IDi的CSI-RS位置为k((IDi+x)nrodm) (1彡i彡m),X,m,n为整数。 [0112] the fourth embodiment, it is assumed in the CoMP set is associated with a cell identifier ID1, ID2, ..., IDm, the current cell may be used to transmit different CSI-RS position kl, k2, ..., kn, then cell the CSI-RS IDi position k ((IDi + x) nrodm) (1 i San San m), X, m, n are integers. 其中,X为固定值,比如0或者nm等;或者,X的取值由基站通过信令通知。 Wherein, X is a fixed value, such as 0 nm, or the like; or X value notified by the base station through signaling.

[0113] 以上所述,仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。 [0113] The above are only preferred embodiments of the present invention but are not intended to limit the scope of the present invention, any modifications within the spirit and principle of the present invention, equivalent replacements and improvements are It is included within the scope of the present invention.

Claims (16)

1. 一种确定小区参考信号位置的方法,其特征在于,该方法包括: 确定小区的信道状态信息的参考信号CSI-RS的位置,用户设备UE根据CSI-RS的位置测量多个小区信道状态信息并上报给基站; 所述小区为协作小区;所述确定小区的信道状态信息的参考信号CSI-RS的位置包括: 从可用作发送不同小区的信道状态信息的参考信号CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置; 所述从可用作发送不同小区的信道状态信息的参考信号CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置包括: 当前可用作发送不同小区的CSI-RS的位置顺序编号为bk2,…,kn; 传输m个小区CSI-RS的m个位置为kh,kh+1,…,kh+m_1;所述m个位置为连续的; 其中,m,n为整数,m表示各协作小区,h为固定值或者为预先设置的; 或者,对所有n个位置选取m个位置的 A cell determination method of the reference position signal, characterized in that, the method comprising: determining cell reference signal CSI-RS channel state information of a position, a plurality of cells the user equipment UE measures a channel state according to the position of the CSI-RS and report information to the base station; the cell as a cooperating cell; determining a cell location of the reference signals a channel state information CSI-RS comprises: transmitting a channel state the position of the different cells may be used as the reference signal from the information CSI-RS , the coordinated cells selected for transmission CSI-RS several positions coordinated cell; cell different from the transmission channel state may be used as the reference signal CSI-RS position information, the coordinated cells selected for transmission CSI -RS several positions coordinated cell comprising: a current position of the transmission sequence number may be used in different cells of the CSI-RS is bk2, ..., kn; m th cell transmit the CSI-RS for the m locations kh, kh + 1, ..., kh + m_1; the m consecutive position; wherein, m, n are integers, m represents the coordinated cells, h is a fixed value set in advance or a; or, selecting m number of positions of the n positions of all of 合进行编号,任意m个位置都唯一的对应一个编号索引r,每个编号索引r唯一的对应m个位置; 根据m个小区CSI-RS的位置,基站选取一个编号索引发送给目标UE; 目标UE根据接收到的编号索引r,以及编号索引r和位置的对应关系,获得m个位置信息; 其中,n表示当前可用作发送不同小区的CSI-RS的位置的个数;m表示各协作小区; 根据各协作小区的标识,确定各协作小区CSI-RS的位置。 Together are numbered, any m number of positions are a unique number corresponding to the index r, a unique number corresponding to the position of each of the m index r; m-th position according to the CSI-RS cells, select a base station to a target index of the UE ID; target UE according to the received index number r, and the correspondence between the index number and position r, obtain location information of m;, n represents the position number of different CSI-RS transmission may be used as the current cell; m represents collaborating cell; the identifier of each cooperating cell, determining respective coordinated position CSI-RS cells.
2. 根据权利要求1所述的方法,其特征在于,当所述h为固定值时,其取值为1,或者nm; 其中,n表示当前可用作发送不同小区的CSI-RS的位置的个数。 2. The method according to claim 1, wherein, when h is a fixed value, which value is 1, or nm;, n represents the current position may be used to transmit different cells of the CSI-RS number.
3. 根据权利要求1所述的方法,其特征在于,当所述h为预先设置的时,所述h的取值由基站通过信令通知目标UE。 3. The method according to claim 1, wherein, when h is a preset value of the h signaling by the base station by the target UE.
4. 根据权利要求1所述的方法,其特征在于,所述从可用作发送不同小区的信道状态信息的参考信号CSI-RS的位置中,选择用于传输各协作小区CSI-RS的协作小区数个位置包括: 当前可用作发送不同小区的CSI-RS的位置顺序编号为bk2,…,kn,选取的m个位置为其中,m,n 为整数,1 <sk<n,sk<sk+1; 所述编号索引实中,扩展二项式系数的定义: * *, 4. The method according to claim 1, characterized in that the different transmitting cells from the reference position may be used as a channel state information CSI-RS signal, select cooperative transmit coordinated cells for the CSI-RS a plurality of cell positions includes: a current position of the transmission sequence number may be used in different cells of the CSI-RS is bk2, ..., kn, as selected locations wherein m, m, n is an integer, 1 <sk <n, sk < sk + 1; the real index number, the extended definition of binomial coefficients: * *,
Figure CN101635950BC00021
Figure CN101635950BC00022
示x个不同数值中取y个数值的组合数Cf。 It shows the different values ​​taken x y number of combinations of numerical values ​​Cf.
5. 根据权利要求1所述的方法,其特征在于,所述m个小区CSI-RS的m个位置的编号索引r由基站通过信令传输给目标UE。 5. The method according to claim 1, wherein R & lt index number m of the m th cell position of the CSI-RS transmitted by the base station via signaling to the target UE.
6. 根据权利要求1所述的方法,其特征在于,m个小区CSI-RS的m个位置通过m个信令传输,每个信令表示一个小区的CSI-RS位置。 6. The method according to claim 1, characterized in that, the m cells of the CSI-RS locations m by the m-th signaling, each signaling indicates the position of a CSI-RS cell.
7. 根据权利要求1所述的方法,其特征在于,确定各协作小区CSI-RS的位置包括:根据基站发送的m个小区标识的顺序,确定小区CSI-RS的位置; 或者,按照小区标识的大小将所述m个小区排序,根据排序后的位置确定小区CSI-RS的位置。 7. The method according to claim 1, wherein determining the position of each of the coordinated cells CSI-RS comprises: a cell identifier according to the order of the m-th base station, determining the position of the CSI-RS cells; or, according to a cell identifier the size of the m cell sorting, determining the position of the CSI-RS cells sorted according to the position.
8. 根据权利要求7所述的方法,其特征在于,所述根据基站发送的m个小区标识的顺序,确定小区CSI-RS的位置具体包括: 当某小区ID在m个小区标识发送的顺序为g时,该小区对应的CSI-RS的位置为所述m个位置中的第g个位置。 8. The method according to claim 7, wherein said cell identifier according to the order of the m-th base station, determining the position of the CSI-RS cell comprises: a cell ID in the order of m transmission when the cell identifier when g, CSI-RS of the cell corresponding to the position of the m position to the first position g.
9. 根据权利要求7所述的方法,其特征在于,按照小区标识的大小将所述m个小区排序,根据排序后的位置确定小区CSI-RS的位置具体包括: 当某小区ID在排序中的位置为g时,该小区对应的CSI-RS的位置为所述m个位置中的第g个位置。 9. The method according to claim 7, characterized in that, according to the size of the cell identity of m cell sorting, determining the position of the cell comprises the CSI-RS according to the position of the sorted: When a cell ID in the ordering position is g, CSI-RS of the cell corresponding to the position of the m position to the first position g.
10. 根据权利要求1所述的方法,其特征在于,所述确定各协作小区CSI-RS的位置为k((cell-ID+x)modm) ' 其中,Cell_ID为小区标识,m表示各协作小区;mod为取余运算符; x为固定值,或者x的取值由基站通过信令通知目标UE。 10. The method according to claim 1, wherein said determining the position of each of the coordinated cells CSI-RS for k ((cell-ID + x) modm) 'wherein, CellJD a cell identifier, m denotes collaborating cells; MOD is the modulo operator; x is a fixed value, or the value of x notifies the target UE by the base station through signaling.
11. 一种确定小区参考信号位置的装置,其特征在于,包括选择模块和确定模块,其中, 选择模块,用于在当前可用作发送不同小区的CSI-RS的位置顺序编号为bk2,…,kn 时,传输m个小区CSI-RS的m个位置为kh,kh+1,…,kh+m_1;所述m个位置为连续的; 其中,m,n为整数,m表示各协作小区,h为固定值或者为预先设置的; 或者,用于对所有n个位置选取m个位置的组合进行编号,任意m个位置都唯一的对应一个编号索引r,每个编号索引r唯一的对应m个位置; 根据m个小区CSI-RS的位置,基站选取一个编号索引发送给目标UE; 目标UE根据接收到的编号索引r,以及编号索引r和位置的对应关系,获得m个位置信息; 其中,n表示当前可用作发送不同小区的CSI-RS的位置的个数;m表示各协作小区; 确定模块,用于根据各协作小区的标识,确定各协作小区CSI-RS的位置。 11. An apparatus for determining the position of a cell reference signal, characterized in that it comprises a selection module and a determining module, wherein, the selection module, a position different transmission sequence numbers may be used in the current cell is a CSI-RS BK2, ... when KN, transmitting the m cells of the m CSI-RS position kh, kh + 1, ..., kh + m_1; the m consecutive position; wherein, m, n are integers, m represents the coordinated cells , h is a fixed value or a preset; or, for selecting a combination of the m positions numbered positions for all n, m arbitrary position uniquely corresponding one of the r index number, each number corresponding to a unique index r m position; a number indexed by m th cell CSI-RS position, the base station selection is sent to the target UE; target UE according to the received number index r, and the correspondence between numbers index r and a location obtained the m position information; , n represents the number of positions different CSI-RS transmission may be used as a current cell; m represents each coordinated cell; determining module, according to the identifier of each cooperating cell, determining respective coordinated position CSI-RS cells.
12. 根据权利要求11所述的装置,其特征在于,对于所述不同小区中的每个小区,该小区中所有的CSI-RS位于一个子帧中的一个或者两个正交频分复用OFDM符号上; 所述小区为单小区或协作小区。 12. The apparatus as claimed in claim 11, wherein the different cells for each cell, all the cells in a CSI-RS subframe one or both orthogonal frequency-division multiplexing OFDM symbols; the cell is a single cell or cell collaboration.
13. 根据权利要求12所述的装置,其特征在于,当所述子帧采用常规循环前缀时,所述OFDM符号为子帧中第二个时隙的第二个、第三个、第四个OFDM符号中的一个或者两个OFDM 符号; 当所述子帧采用扩展循环前缀时,所述OFDM符号为子帧中第二个时隙的第二个、第三个OFDM符号中的一个或者两个OFDM符号。 13. The apparatus as claimed in claim 12, wherein, when said subframe uses the normal cyclic prefix of the OFDM symbol for the second, third sub-frame in the second time slot, the fourth OFDM symbols of one or two OFDM symbols; when the sub-frame using an extended cyclic prefix of the OFDM symbols of a subframe, the second, the third OFDM symbol in the second slot or two OFDM symbols.
14. 根据权利要求12所述的装置,其特征在于, 当所述CSI-RS与天线端口#5的参考信号在相同的物理子载波上发送时,仅发送所述CSI-RS。 14. The apparatus as claimed in claim 12, wherein, when the CSI-RS antenna port transmits a reference signal # 5 is on the same physical sub-carriers, transmit only the CSI-RS.
15. 根据权利要求12所述的装置,其特征在于, 当所述CSI-RS与发送给R8版本终端的物理共享信道承载的数据在相同的物理子载波上发送时,仅发送所述CSI-RS; 发送给R8版本以上终端的物理共享信道不在所述CSI-RS所在子载波上映射。 15. The apparatus according to claim 12, wherein, when the data is transmitted to the CSI-RS and R8 version terminal carried physical shared channel transmitted on the same physical sub-carriers, transmit only the CSI- the RS; R8 version to a more terminals physical shared channel is not located on said sub-carrier mapping CSI-RS.
16.根据权利要求11所述的装置,其特征在于,该装置还包括: 基站根据所述各协作小区的CSI-RS位置,按照相应顺序发送各协作小区的标识。 16. The apparatus according to claim 11, wherein the apparatus further comprises: a base station identifier transmitted in accordance with the corresponding coordinated cells according to the CSI-RS sequence of each position of the cooperating cell.
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