WO2014086203A1 - 一种协同小区的探测参考信号资源配置方法及装置 - Google Patents

一种协同小区的探测参考信号资源配置方法及装置 Download PDF

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Publication number
WO2014086203A1
WO2014086203A1 PCT/CN2013/085126 CN2013085126W WO2014086203A1 WO 2014086203 A1 WO2014086203 A1 WO 2014086203A1 CN 2013085126 W CN2013085126 W CN 2013085126W WO 2014086203 A1 WO2014086203 A1 WO 2014086203A1
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Prior art keywords
srs
cell
user terminal
resources
time domain
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PCT/CN2013/085126
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English (en)
French (fr)
Inventor
刘娜
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/649,767 priority Critical patent/US9814039B2/en
Priority to EP13861118.1A priority patent/EP2916479B1/en
Priority to JP2015545647A priority patent/JP6050898B2/ja
Publication of WO2014086203A1 publication Critical patent/WO2014086203A1/zh
Priority to HK16100620.0A priority patent/HK1212830A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • 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
    • 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
    • H04L5/0058Allocation criteria
    • H04L5/0073Allocation arrangements that take into account other cell interferences
    • 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
    • H04L5/0078Timing of allocation
    • H04L5/008Timing of allocation once only, on installation

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a method and a device for configuring a Sounding Reference Signal (SRS) resource of a coordinated cell.
  • SRS Sounding Reference Signal
  • the International Telecommunications Union puts very stringent requirements on the performance of next-generation mobile communication systems (ie, the International Mobile Telecommunications-Advancd ( ⁇ - ⁇ ) system), for example, maximum system transmission.
  • the bandwidth reaches 100MHz, and the peak rate of uplink and downlink data transmission needs to reach 1G bps and 500M bps; and the system average spectral efficiency, especially the edge spectrum efficiency, is very high.
  • the 3rd Generation Partnership Project In order to meet the requirements of the new IMT-Advanced system, the 3rd Generation Partnership Project (3GPP, The 3rd Generation Partnership Project) is in its next-generation mobile cellular communication system (ie, Long Term Evolution Advanced (LTE-A) system)
  • the CoMP (Co-ordinated Multi-Point) transmission technology is proposed to improve the performance of the system.
  • the CoMP transmission technology is a geographically separated plurality of transmission points, which cooperate to participate in data transmission of one terminal or jointly receive data transmitted by one terminal. Multiple transmission points participating in a collaboration generally refer to base stations of different cells.
  • the Sounding Reference Signal is a user equipment (UE)
  • the UE periodically transmits the SRS on the last symbol of the transmission subframe according to the parameters specified by the base station, such as the bandwidth, the frequency domain location, the sequence cyclic shift, the period, and the subframe offset.
  • the eNB measures the channel state information of the UE uplink according to the received SRS, and performs frequency domain selective scheduling, closed loop power control, and the like according to the uplink channel quality.
  • TDD Time Division Duplexing
  • the cells participating in the cooperation need to obtain the channel from the terminal to the own cell. status information. Therefore, all coordinated cells need to correctly receive the SRS sent by the UE. Therefore, how to allocate SRS resources reasonably makes it very important to minimize SRS interference between cells.
  • the embodiments of the present invention provide a method and a device for configuring a sounding reference signal resource of a coordinated cell, which are used to solve the problem that the SRS between the cells in the related art has serious interference.
  • the embodiment of the invention provides a method for configuring a sounding reference signal SRS resource of a coordinated cell, which includes:
  • all cells are divided into different cell groups, including:
  • determining a time domain resource configuration order of the start of the SRS of each cell group including: collecting, according to the SRS subframe configuration, the number of SRS symbols in a predetermined reference time to obtain the number of SRS symbols N;
  • each cell group is allocated a time domain resource starting from the SRS, and the time domain resource configuration order of the SRS starting of each cell group is determined.
  • determining a SRS resource grouping policy of the cell according to the status information of the user terminal including:
  • the status information of the user terminal includes X types
  • configuring SRS resources for accessing user terminals in each cell includes:
  • the time domain resource configuration order starting from the SRS corresponding to the cell to which the user terminal belongs, and the start of GroupAO> GroupAi > Group A2 > ... > GroupA(Xl)
  • the frequency domain resource sequence allocates initial SRS resources to user terminals.
  • configuring SRS resources for accessing user terminals in each cell includes:
  • the GroupAi resource corresponding to the user terminal is configured according to the latest state information i of the user terminal. If the GroupAi has no idle resources, the SRS resource is configured for the user terminal according to the priority order of the frequency domain resources.
  • the method further includes: after configuring an SRS resource for accessing a user terminal in each cell,
  • the number of user terminals accessing each cell is counted multiple times, and the average number of user terminals accessing each cell is obtained;
  • the time domain resource configuration order according to the SRS is The allocated SRS resources are reconfigured.
  • An embodiment of the present invention further provides a sounding reference signal SRS resource configuration apparatus of a coordinated cell, including:
  • a grouping unit which is configured to: divide all cells into different cell groups
  • a start time domain order determining unit configured to: determine a time domain resource configuration order of SRS starting of each cell group;
  • An SRS resource grouping policy determining unit configured to: according to status information of the user terminal, SRS resource grouping strategy for a given cell;
  • the SRS resource configuration unit is configured to: configure SRS resources for accessing user terminals in each cell according to the time domain resource configuration order and the SRS resource grouping policy initiated by the SRS.
  • the grouping unit is configured to divide all cells into different cell groups in the following manner:
  • the initial time domain order determining unit is configured to determine a time domain resource configuration order of SRS starting of each cell group in the following manner:
  • the number of SRS symbols is counted in a predetermined reference time to obtain the number N of SRS symbols;
  • each cell group is allocated a time domain resource starting from the SRS, and the time domain resource configuration order of the SRS starting of each cell group is determined.
  • the SRS resource grouping policy determining unit is configured to determine a SRS resource grouping policy of the cell according to the state information of the user terminal in the following manner:
  • Is ⁇ , where ⁇ D ⁇ ke Z, 0 ⁇ k ⁇ Sl , Z is an integer ⁇ ;
  • the status information of the user terminal includes X types
  • the SRS resource configuration unit is configured to configure SRS resources for accessing user terminals in each cell in the following manner:
  • the time domain resource configuration sequence starting from the SRS corresponding to the cell to which the user terminal belongs, and the start of GroupAO > GroupAl > Group A2 > ... > GroupA (Xl)
  • the frequency domain resource sequence allocates initial SRS resources to user terminals.
  • the SRS resource configuration unit is configured to configure SRS resources for accessing user terminals in each cell in the following manner: After obtaining the status information of the user terminal, or after the status information of the user terminal is changed, acquiring the latest status information i of the user terminal;
  • the GroupAi resource corresponding to the user terminal is configured according to the latest state information i of the user terminal. If the GroupAi has no idle resources, the SRS resource is configured for the user terminal according to the priority order of the frequency domain resources.
  • the device further includes:
  • the SRS resource reconfiguration unit is configured to: perform multiple statistics on the number of user terminals accessing each cell within a set time, and determine the average number of user terminals accessing each cell; and the average number of user terminals If the number of the largest orthogonal user terminals supported by the system is smaller, and the cells of the SRS resources allocated by the user terminal cannot be orthogonal, the allocated SRS resources are reconfigured according to the time domain resource configuration order initiated by the SRS. .
  • the method and the device in the embodiment of the present invention can reduce signaling interaction of each coordinated cell in the CoMP, and have regularity in SRS resource allocation, which can effectively suppress interference between cells and small cells, and improve spectrum efficiency of the system. , in particular, to improve the spectrum efficiency of users at the edge of the cell.
  • FIG. 1 is a flowchart of a method for configuring a sounding reference signal resource of a coordinated cell according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a grouping in a system networking in an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a SRS time domain resource configuration in a cell according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an SRS start symbol configuration of each cell group in the embodiment of the present invention
  • FIG. 5 is a schematic diagram of initial resource configuration of a coordinated cell UE SRS according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a coordinated cell according to a UE according to an embodiment of the present invention
  • the state information is a schematic diagram of the SRS resources reconfigured by the UE;
  • FIG. 7 is a schematic diagram of allocation before adaptive adjustment of a UESRS resource of a coordinated cell according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of allocation after adaptive adjustment of a coordinated cell UE SRS resource according to an embodiment of the present invention
  • FIG. 9 is a schematic structural diagram of an apparatus for configuring a sounding reference signal resource of a coordinated cell according to an embodiment of the present invention.
  • a method for configuring a sounding reference signal resource of a coordinated cell includes the following steps:
  • Step S101 All cells are divided into different cell groups.
  • all cells in the system are divided into multiple groups of different cell groups; the allocation method may be any method, but in order to more effectively suppress inter-cell interference, the neighboring cells are preferentially not in the same cell.
  • Group principles are grouped. For example, as shown in FIG. 2, in FIG. 2, cell 0 is cell group 1, cell 1, 3, and 5 are one cell group 2, and cells 2, 4, and 6 are one cell group 3, and each cell group has the same Method of allocation.
  • Step S102 Determine a time domain resource configuration order of starting SRS of each cell group.
  • the SRS start time domain resources are allocated to the respective groups in the order of the SRS symbols (for example, by 0 N-1 ), and the SRS time domain resource order of each cell group is determined.
  • the SRS start time domain resource corresponding to cell group 1 is symbol 0
  • the SRS start time domain resource corresponding to cell group 2 is symbol 1
  • the time division order of each cell group is:
  • the time division order of cell group 1 is [0, 1, 2, ..., N-1]
  • the time division order of cell group 2 is [1, 2, ... ... , ⁇ -1 , 0]
  • the time division order of cell group 3 is [2, ...,
  • Step S103 Determine, according to status information of the user terminal, a SRS resource grouping policy of the cell.
  • the frequency domain resources of the SRS symbol are divided into M segments, that is, the M is obtained by dividing the cell SRS bandwidth by the UESRS bandwidth.
  • the SRS resource grouping policy of the cell is determined according to the state information of the user terminal. If the status information of the user terminal includes X types, the status information of each type of user terminal corresponds to a code tree subset GroupAi, that is, the code tree subset assigned to a certain status information is marked as GroupAi.
  • Grou Ai ⁇ k
  • GroupA0 ⁇ k
  • GroupAl ⁇ k
  • GroupA2 ⁇ k
  • GroupA3 ⁇ k
  • Step S104 Configure SRS resources for accessing user terminals in each cell according to the time domain resource configuration order and the SRS resource grouping policy initiated by the SRS.
  • the time domain resource according to the SRS corresponding to the cell to which the user terminal belongs is generated.
  • the appropriate resource is allocated according to the latest user terminal status information:
  • the user terminal After the initial connection is established by the RRC, the user terminal obtains the status information of the user terminal, or obtains multiple types of reporting information, such as the A3 event and the path loss status, and finds that the status information of the user terminal is changed from some status information to another.
  • the GroupAi resource corresponding to the user terminal is configured according to the determined status information i of the latest user terminal; if the GroupAi has no idle resources, the SRS is configured for the user terminal according to the priority order of the frequency domain resources. Resources. example
  • the order of the SRS resources is frequency division, Comb division, code division, and time division.
  • the priority order of the frequency domain resources mentioned is only an example; in the actual process, it needs to be determined according to the predefined state information.
  • the cell 0 obtains the UE as an edge user by measurement, and the power is not limited; the cell 1 obtains the UE as a central user by measurement, and the power is limited; The UE is a central user, and the power is not limited.
  • the three cells need to reconfigure the SRS resources for the UE according to the obtained UE status information according to the following principles: For edge users whose user power is not limited, according to GroupAO > GroupAi > GroupAi > Group A3 is configured with SRS resources in sequence; for central users with unrestricted user power, edge users with limited user power, according to GroupA2 > GroupAO > GroupAO > The order of the GroupAl is configured with the SRS resource; and for the central user in the case of the user power limitation, the UE of the cell 0 is allocated the location of the GroupAO of the SRS symbol 0, the UE of the cell 1 is allocated the location of the Group A3 of the SRS symbol 1, and the UE of the cell 2 Assigned at the GroupAl position of SRS symbol 2, the allocation is as shown in FIG. 6.
  • the method of the embodiment of the present invention further includes the step S105:
  • Step S105 performing multiple statistics on the number of user terminals accessing each cell within a set time, and determining the average number of user terminals accessing each cell; when the average number of user terminals is less than the maximum orthogonal supported by the system If the number of user terminals is not orthogonal to the cells of the SRS resources allocated by the user terminal, the allocated SRS resources are reconfigured according to the time domain resource configuration order initiated by the SRS.
  • the number of users accessed is counted. If the number of users counted in the continuous multiple statistics does not exceed the maximum number of orthogonal users, and the user has been allocated. The resources cannot be orthogonal to each other, and the allocated resources are re-adjusted to resources completely orthogonal to the neighboring cells. The adjustment strategy is allocated according to the frequency division, Comb score, code division, and time division in the same group. Resources. If the number of users counted each time exceeds the maximum number of orthogonal users, or the resources allocated by the user can ensure orthogonality between cells, no SRS resource adjustment is performed.
  • the timer duration is 200s
  • the number of statistics in the timer duration is 4, and the maximum number of orthogonal users supported by the system is 32.
  • the average number of users in cell 0 is 4
  • the number of users in cell 1 is 7
  • the number of users in cell 2 is 2, and the number of access users in 3 cells is average.
  • adaptive adjustment is needed in each cell to re-adjust the resource allocation of the SRS.
  • the adjustment strategy is based on the internal frequency of the same group. Resources are allocated in the order of points, Comb points, code points, and time divisions, as shown in Figure 8.
  • the order of allocation of the frequency division, the Comb division, and the code division is a recommended allocation sequence.
  • the order of the frequency division, the Comb division, and the code division can be arbitrarily configured.
  • the embodiment of the present invention further provides an SRS resource configuration apparatus for a coordinated cell that implements the foregoing method, including: a grouping unit 91, configured to divide all cells into different cell groups;
  • a start time domain order determining unit 92 configured to determine a time domain resource configuration order of SRS start of each cell group
  • An SRS resource grouping policy determining unit 93 configured to determine a cell SRS resource grouping policy according to status information of the user terminal;
  • the SRS resource configuration unit 94 is configured to configure SRS resources for accessing user terminals in each cell according to the time domain resource configuration order and the SRS resource grouping policy initiated by the SRS.
  • the grouping unit 91 is configured to divide all cells into different cell groups in the following manner: All cells are divided into different cell groups according to the principle that neighboring cells are not in the same cell group.
  • the start time domain order determining unit 92 is a time domain resource configuration order for determining the SRS start of each cell group in the following manner:
  • the number of SRS symbols is counted in a predetermined reference time to obtain the number N of SRS symbols;
  • each cell group is allocated a time domain resource starting from the SRS, and the time domain resource configuration order of the SRS starting of each cell group is determined.
  • the SRS resource grouping policy determining unit 93 is configured to determine a SRS resource grouping policy of the cell according to the state information of the user terminal in the following manner:
  • Is ⁇ , where ⁇ D ⁇ ke Z, 0 ⁇ k ⁇ Sl , Z is an integer ⁇ ;
  • the status information of the user terminal includes: a user attribute and a field strength information; wherein the user attribute includes a center user or an edge user; the field strength information includes the user power limited or unrestricted; and the corresponding code is determined according to the state information of the user terminal.
  • Tree subset The code tree subset corresponding to the edge user in the case where the user terminal power is not limited is marked as GmupAO and the code tree subset corresponding to the center user is marked as GroupAi; the code corresponding to the edge user in the case where the user terminal power is limited The tree subset is marked as The code tree subset corresponding to GroupA2 and the central user is labeled GroupA3.
  • the SRS resource configuration unit 94 is configured to configure SRS resources for accessing user terminals in each cell in the following manner:
  • the time domain resource configuration sequence starting from the SRS corresponding to the cell to which the user terminal belongs, and the start of GroupAO > GroupAl > Group A2 > ... > GroupA (Xl)
  • the frequency domain resource sequence allocates initial SRS resources to user terminals.
  • the SRS resource configuration unit 204 is configured to configure SRS resources for accessing user terminals in each cell in the following manner:
  • the group Ai resource corresponding to the user terminal is configured. If the group Ai has no idle resources, the SRS resource is configured for the user terminal according to the priority order of the frequency domain resources.
  • the device further includes:
  • the SRS resource reconfiguration unit 95 is configured to perform multiple statistics on the number of user terminals accessing each cell within a set time, and determine the average number of user terminals accessing each cell; If the SRS resource cells that are allocated by the user terminal cannot be orthogonal, the allocated SRS resources are reconfigured according to the time domain resource configuration sequence initiated by the SRS.
  • the situation of each cell and its neighboring cells is comprehensively considered, so that different SRS symbols are occupied in the time domain when the SRS resources are allocated between adjacent cells, and are allocated through SRS.
  • the adaptive adjustment ensures that the SRS between adjacent cells is completely orthogonal when the number of users is small.
  • the users are grouped according to user attributes and user field strength information, thereby avoiding interference between users SRS in the cell. Therefore, the accuracy of the SRS measurement is greatly improved.
  • the signaling interaction of each coordinated cell in the CoMP can be reduced, and the SRS resource allocation has regularity, which can effectively suppress inter-cell interference;
  • the spectral efficiency of the system especially the spectral efficiency of the cell edge users.
  • the method and the device in the embodiment of the present invention can reduce signaling interaction of each coordinated cell in the CoMP, and have regularity in SRS resource allocation, which can effectively suppress interference between cells and small cells, and improve spectrum efficiency of the system. , in particular, to improve the spectrum efficiency of users at the edge of the cell.

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Abstract

一种协同小区的SRS资源配置方法及装置。所述方法包括:将所有小区分成不同的小区组;确定各个小区组的SRS起始的时域资源配置顺序;根据用户终端的状态信息,确定小区的SRS资源分组策略;根据所述SRS起始的时域资源配置顺序和SRS资源分组策略,对接入每个小区中的用户终端配置SRS资源。

Description

一种协同小区的探测参者信号资源配置方法及装置
技术领域
本发明涉及移动通讯技术领域, 特别涉及一种协同小区的探测参考信号 ( Sounding Reference Signal, SRS ) 资源配置方法及装置。 背景技术
国际通信联盟 ( ITU, International Telecommunications Union )对下一代 移动通信系 统 ( 即 , 高级国 际移动通信 ( International Mobile Telecommunications-Advancd , ΙΜΤ-Α )系统)的性能提出了非常苛刻的要求, 比如, 最大系统传输带宽达到 100MHz, 上下行数据传输的峰值速率需要达 到 1G bps 和 500M bps; 并对系统平均频谱效率尤其是边缘频谱效率提出了 非常高的需求。 为了满足 IMT-Advanced新系统的要求, 第三代合作伙伴项 目 ( 3GPP, The 3rd Generation Partnership Project )在其下一代移动蜂窝通信 系统(即, 长期演进升级 ( Long Term EvolutionAdvanced, LTE-A ) 系统) 中 提出了釆用多点协同( CoMP, Co-ordinated Multi-Point )传输技术来提高系统 的性能。 CoMP传输技术是地理位置上分离的多个传输点, 协同参与为一个 终端的数据传输或联合接收一个终端发送的数据。 参与协作的多个传输点通 常指不同小区的基站。
探测参考信号(SRS, Sounding Reference Signal )是一种用户设备 ( UE,
User Equipment )与演进型基站(eNB, evolved Node B ) 间用来测量上行信 道质量的信号。 在 LTE系统中, UE按照基站指定的带宽、 频域位置、 序列 循环移位、 周期和子帧偏移等参数, 定时在发送子帧的最后一个符号上发送 SRS。 对于 FDD ( Frequency Division Duplexing, 频分双工) 系统, eNB根据 接收的 SRS测量 UE上行的信道状态信息, 并根据上行信道质量进行频域选 择性调度、 闭环功控等操作。对于 TDD ( Time Division Duplexing, 时分双工) 系统, 还可以利用上下行信道互易性, 进行下行的调度或协作调度等操作。
在 CoMP的应用中, 参与协作的小区都需要获得终端到自身小区的信道 状态信息。 因此, 所有协作小区均需要正确接收 UE发出的 SRS。 因此, 如 何合理地分配 SRS资源, 使得小区间的 SRS干扰最小就显得非常重要。
在相关技术中, 往往是各个小区釆用的分配方法是一样的, 这样会导致 小区间的 SRS存在严重干扰, 引起测量结果误差很大, 最终使得 CoMP的性 能达不到预期。 发明内容
本发明实施例提供一种协同小区的探测参考信号资源配置方法及装置, 用以解决相关技术中小区间的 SRS存在严重干扰的问题。
本发明实施例提供一种协同小区的探测参考信号 SRS资源配置方法, 包 括:
将所有小区分成不同的小区组;
确定各个小区组的 SRS起始的时域资源配置顺序;
根据用户终端的状态信息, 确定小区的 SRS资源分组策略; 以及 根据所述 SRS起始的时域资源配置顺序和 SRS资源分组策略,对接入每 个小区中的用户终端配置 SRS资源。
可选地, 将所有小区分成不同的小区组, 包括:
按照相邻小区不在同一小区组的原则将所有小区分成不同的小区组。 可选地, 确定各个小区组的 SRS起始的时域资源配置顺序, 包括: 根据 SRS子帧配置,在预定的基准时间内统计 SRS符号数目,得到 SRS 符号数目 N; 以及
根据所述 SRS符号数目 N, 为每个小区组分配 SRS起始的时域资源, 确 定每个小区组的 SRS起始的时域资源配置顺序。
可选地, 根据用户终端的状态信息, 确定小区的 SRS资源分组策略, 包 括:
将每个 SRS时域资源分成 S组, 其中, S=2M, M为小区 SRS带宽与用 户终端的 SRS带宽的比值; 将不同的频分资源、 梳分资源对应的总的码树集 合标记为 Φ, 其中, <D={k e Z, 0< k < S-l , Z为整数 } ; 以及
当用户终端的状态信息包括 X种时, 则每一种用户终端的状态信息都对 应一个码树子集 GroupAi,其中, Group Ai={k|mod (k, x) = i} , i G (0 , 1 , , x-1), GroupAi={k\mod (k, x) = 表示 k除以 x余数为 i的集合。
可选地, 对接入每个小区中的用户终端配置 SRS资源, 包括:
当用户终端建立初始连接时, 才艮据该用户终端所属小区对应的 SRS起始 的时域资源配置顺序,及 GroupAO〉 GroupAi > Group A2 > ... ... >GroupA(X-l) 的起始频域资源顺序, 为用户终端分配初始的 SRS资源。
可选地, 对接入每个小区中的用户终端配置 SRS资源, 包括:
当获取用户终端的状态信息后, 或当用户终端的状态信息发生改变后, 获取用户终端的最新的状态信息 i; 以及
根据用户终端的最新的状态信息 i, 为用户终端配置与之对应的 GroupAi 资源; 若 GroupAi没有空闲资源, 则按照频域资源的优先级顺序为用户终端 配置 SRS资源。
可选地, 所述方法还包括: 对接入每个小区中的用户终端配置 SRS资源 之后,
在设定时间内, 对接入各个小区的用户终端数进行多次统计, 并求出接 入各个小区的平均用户终端数; 以及
当所述平均用户终端数小于系统支持的最大正交用户终端数, 且为用户 终端已分配的 SRS资源的小区之间不能正交,则根据所述 SRS起始的时域资 源配置顺序对已分配的 SRS资源进行重新配置。
本发明实施例还提供一种协同小区的探测参考信号 SRS资源配置装置, 包括:
分组单元, 其设置成: 将所有小区分成不同的小区组;
起始时域顺序确定单元, 其设置成: 确定各个小区组的 SRS起始的时域 资源配置顺序;
SRS资源分组策略确定单元, 其设置成: 根据用户终端的状态信息, 确 定小区的 SRS资源分组策略; 以及
SRS资源配置单元, 其设置成: 根据所述 SRS起始的时域资源配置顺序 和 SRS资源分组策略, 对接入每个小区中的用户终端配置 SRS资源。
可选地, 所述分组单元是设置成以如下方式将所有小区分成不同的小区 组:
按照相邻小区不在同一小区组的原则将所有小区分成不同的小区组。 可选地, 所述起始时域顺序确定单元是设置成以如下方式确定各个小区 组的 SRS起始的时域资源配置顺序:
根据 SRS子帧配置,在预定的基准时间内统计 SRS符号数目,得到 SRS 符号数目 N; 以及
根据所述 SRS符号数目 N, 为每个小区组分配 SRS起始的时域资源, 确 定每个小区组的 SRS起始的时域资源配置顺序。
可选地, 所述 SRS资源分组策略确定单元是设置成以如下方式根据用户 终端的状态信息, 确定小区的 SRS资源分组策略:
将每个 SRS时域资源分成了 S组, 其中, S=2M, M为小区 SRS带宽与 用户终端的 SRS带宽的比值; 将不同的频分资源、 梳分资源对应的总的码树 集合标记为 Φ, 其中, <D={k e Z, 0< k < S-l , Z为整数 } ; 以及
当用户终端的状态信息包括 X种时, 则每一种用户终端的状态信息都对 应一个码树子集 GroupAi,其中, Group Ai={k|mod (k, x) = i} , i G (0 , 1 , , x-1), GroupAi={k\mod (k, x) = 表示 k除以 x余数为 i的集合。
可选地, 所述 SRS资源配置单元是设置成以如下方式对接入每个小区中 的用户终端配置 SRS资源:
当用户终端建立初始连接时, 才艮据该用户终端所属小区对应的 SRS起始 的时域资源配置顺序,及 GroupAO >GroupAl > Group A2 > ... ... >GroupA(X-l) 的起始频域资源顺序, 为用户终端分配初始的 SRS资源。
可选地, 所述 SRS资源配置单元是设置成以如下方式对接入每个小区中 的用户终端配置 SRS资源: 当获取用户终端的状态信息后, 或当用户终端的状态信息发生改变后, 获取用户终端的最新的状态信息 i; 以及
根据用户终端的最新的状态信息 i, 为用户终端配置与之对应的 GroupAi 资源; 若 GroupAi没有空闲资源, 则按照频域资源的优先级顺序为用户终端 配置 SRS资源。
可选地, 所述装置还包括:
SRS资源重新配置单元, 其设置成: 在设定时间内, 对接入各个小区的 用户终端数进行多次统计, 并求出接入各个小区的平均用户终端数; 当所述 平均用户终端数小于系统支持的最大正交用户终端数, 且为用户终端已分配 的 SRS资源的小区之间不能正交,则根据所述 SRS起始的时域资源配置顺序 对已分配的 SRS资源进行重新配置。
釆用本发明实施例的方法和装置, 可以减少 CoMP中各协同小区的信令 交互, 同时在 SRS资源分配时具有规律性, 可以有效的抑制小区间、 小区内 的干扰, 提升系统的频谱效率, 特别是提高小区边缘用户的频谱效率。 附图概述
图 1 是本发明实施例中一种协同小区的探测参考信号资源配置的方法的 流程图;
图 2 是本发明实施例中系统组网中分组后的示意图;
图 3 是本发明实施例中小区内 SRS时域资源配置的示意图;
图 4 是本发明实施例中各个小区组的 SRS起始符号配置的示意图; 图 5 是本发明实施例中协同小区 UE SRS初始资源配置的示意图; 图 6是本发明实施例中协同小区根据 UE的状态信息为 UE重配置的 SRS 资源的示意图;
图 7 是本发明实施例中协同小区 UESRS资源自适应调整前的分配示意 图;
图 8 是本发明实施例中协同小区 UE SRS资源自适应调整后的分配示意 图; 图 9是本发明实施例中一种协同小区的探测参考信号资源配置的装置的 结构示意图。
本发明的较佳实施方式
以下结合附图对本发明实施例进行详细说明。 应当理解, 在不冲突的情 况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
如图 1所示, 本发明实施例的一种协同小区的探测参考信号资源配置方 法, 包括如下步骤:
步骤 S101 , 将所有小区分成不同的小区组。
本步骤中, 根据系统组网方式, 将系统内所有小区分成多组不同的小区 组; 分配方法可以是任意方法, 但是, 为了更加有效地抑制小区间的干扰, 优先按照相邻小区不在同一小区组的原则进行分组。 例如, 如图 2所示, 图 2中, 小区 0为小区组 1 , 小区 1、 3、 5为一个小区组 2, 小区 2、 4、 6为一 个小区组 3 , 且每个小区组具有相同的分配方法。
步骤 S102, 确定各个小区组的 SRS起始的时域资源配置顺序。
本步骤中,根据 SRS子帧配置,在预定的基准时间内统计 SRS符号数目, 得到 SRS符号数目为 N; 在 TDD系统中, 小区 SRS子帧配置索引为 0, 例 如, 预定的基准时间为 10ms, 其中包含着 N=4个 SRS符号, 如图 3所示; 根据统计得到的 SRS符号数 N,为每个小区组分配 SRS起始的时域资源, 确定每个小区组的 SRS分配的时域资源顺序;
按照 SRS符号的顺序(例如, 由 0 N-1 )依次为各个小组分配 SRS起始 的时域资源, 确定各个小区组的 SRS时域资源顺序。 例如, 令小区组 1对应 的 SRS起始时域资源为符号 0,小区组 2对应的 SRS起始时域资源为符号 1 , 小区组 3对应的 SRS起始时域资源为符号 2,如图 4所示(本实施例中 N=4 )。 各个小区组的时分顺序分别为: 小区组 1的时分顺序为 [0, 1 , 2, ... ... , N-1] , 小区组 2的时分顺序为 [1 , 2, ... ... , Ν-1 , 0] ,小区组 3的时分顺序为 [2, ... ... ,
N-1 , 0, 1]。
步骤 S103 , 根据用户终端的状态信息, 确定小区的 SRS资源分组策略。 本步骤中, 根据小区的 SRS带宽配置和 UE SRS带宽配置, 将 SRS符号 的频域资源分为 M段, 即, 用小区 SRS带宽除以 UESRS带宽即可得到 M。 将每个 SRS时域资源分成了 S ( SrsTreeNum )组(S=2M) , 不同频分资源、 梳( Comb )分资源对应的总的码树集合标记为 Φ, 则 <D={k G Z, 0<k< S-l , Ζ为整数 }; 例如, 小区 SRS带宽为 96RB, UE SRS带宽配置为 24RB, 则每 个 SRS符号上频域资源分成了 4段, 通过频分、 Comb分、 码分可计算出每 个 SRS时域资源分成了 8组, 不同频分资源、 Comb分资源对应的总的码树 集合标记为 Φ, U'J ={k Z, 0<k<S-l, Z为整数 };
根据用户终端的状态信息, 确定小区的 SRS资源分组策略。 设用户终端 的状态信息包含 X种, 则每一种用户终端的状态信息都对应一个码树子集 GroupAi , 即, 对于某种状态信息分配的码树子集标记为 GroupAi, 则
Grou Ai= {k|mod (k, x) = i} , i G (0, 1 , , x-1),其中 , GroupAi: {k\mod (k, x) = 表示 :除以 x余数为 i的集合。
用户终端的状态信息包括: 用户属性和场强信息; 其中, 用户属性包括 中心用户或边缘用户; 场强信息包括用户功率受限或者不受限; 用户终端的 状态信息包括四(x=4)种状态。 根据用户终端的状态信息确定对应的码树子 集: 将用户功率不受限情况下的边缘用户对应的码树子集标记为 GroupAO和 中心用户对应的码树子集标记为 GroupAi; 用户功率受限情况下的边缘用户 对应的码树子集标记为 GroupA2 和中心用户对应的码树子集标记为 GroupA3。 当 k (k=0、 1、 2、 3、 4、 5、 6、 7) 、 x=4时, 通过计算可以得出,
GroupA0={k|mod (k, x) = 0}={0, 4},
GroupAl={k|mod (k, χ) = 1}={1, 5},
GroupA2={k|mod (k, x) = 2}={2, 6},
GroupA3={k|mod (k, x) = 3}={3, 7}。
步骤 S104, 根据所述 SRS起始的时域资源配置顺序和 SRS资源分组策 略, 对接入每个小区中的用户终端配置 SRS资源。
本步骤中, 当用户终端通过 RRC (Radio Resource Control, 无线资源控 制)建立初始连接时, 根据该用户终端所属小区对应的 SRS起始的时域资源 配置顺序, 及 GroupAO〉GroupAI〉GroupA2〉 〉GroM/¾ (Y-7的起始频 域资源顺序, 为用户终端分配初始的 SRS资源。
从 3个小区组中分别找 1个小区, 即, 小区 0、 小区 1、 及小区 2; 当在 同一个时间点, 三个小区中分别都有 1个通过 RRC初始连接建立的用户, 小 区 0、 小区 1、 及小区 2中的每个 UE都按照 GroupAO >GroupAl > Group A2 >GroupA3的顺序为用户分配初始的 SRS资源。 因此, 小区 0的 1个初始接 入 UE分配在 SRS符号 0的 GroupAO的位置, 小区 1的 1个初始接入 UE分 配在 SRS符号 1的 GroupAO的位置、 小区 2的 1个初始接入 UE分配在 SRS 符号 2的 GroupAO的位置, 如图 5所示。
当获取用户终端的状态信息后, 或用户终端的状态信息发生改变后, 根 据最新的用户终端的状态信息为其分配合适的资源:
用户终端通过 RRC建立初始连接之后, 获取用户终端的状态信息后, 或 者, 通过获取 A3事件、路损状态等多种类型的上报信息, 发现用户终端的状 态信息由某种状态信息改变为另一种类状态信息时, 才艮据确定的最新的用户 终端的状态信息 i, 为用户终端配置与之对应的 GroupAi 资源; 若 GroupAi 没有空闲资源, 则按照频域资源的优先级顺序为用户终端配置 SRS资源。 例
GroM/¾ -7 〉GroM/¾ ^-^为用户终端配置 SRS资源。 其中, SRS资源的分 配顺序为频分、 Comb分、 码分、 时分。
上述步骤中, 提及的频域资源优先级顺序仅是一种举例; 实际过程中, 需要根据预定义的状态信息进行确定。
当 3个小区分别获得小区内 UE的状态信息:小区 0通过测量获得 UE为 边缘用户, 且功率不受限; 小区 1通过测量获得 UE为中心用户, 且功率受 限; 以及小区 2通过测量获得 UE为中心用户, 且功率不受限, 则 3个小区 需要根据获取的 UE状态信息按照下面的原则为 UE重新配置 SRS资源: 对 于用户功率不受限情况下的边缘用户,则按照 GroupAO > GroupAi > GroupAi > Group A3的顺序配置 SRS资源; 对于用户功率不受限情况下的中心用户, 用户功率受限情况下的边缘用户, 则按照 GroupA2 > GroupAO > GroupAO > GroupAl的顺序配置 SRS资源; 以及对于用户功率受限情况下的中心用户, 小区 0的 UE分配在 SRS符号 0的 GroupAO的位置,小区 1的 UE分配在 SRS 符号 1的 GroupA3位置, 小区 2的 UE分配在 SRS符号 2的 GroupAl位置, 分配如图 6所示。
另外, 本发明实施例的方法还包括步骤 S105:
步骤 S105 ,在设定时间内,对接入各个小区的用户终端数进行多次统计, 并求出接入各个小区的平均用户终端数; 当所述平均用户终端数小于系统支 持的最大正交用户终端数, 且为用户终端已分配的 SRS资源的小区之间不能 正交,则根据所述 SRS起始的时域资源配置顺序对已分配的 SRS资源进行重 新配置。
本步骤中, 当预定的定时器超时后, 对接入的用户数进行统计, 如果在 连续的多次统计中, 每次统计的用户数都不超过最大正交用户数, 而且为用 户已分配的资源不能保证小区之间正交, 则将分配的资源重新调整到与邻区 完全正交的资源上, 调整策略按照在相同组内的频分、 Comb分、 码分、 时分 的顺序来分配资源。 若每次统计的用户数均超过最大正交用户数, 或为用户 已分配的资源可保证小区之间正交, 则不进行 SRS资源调整。
例如, 设定时器时长为 200s, 定时器时长内统计次数为 4次, 系统支持 的最大正交用户数为 32。 当定时器超时时, 对 4次的结果进行平均后, 发现 小区 0的用户数为 4 , 小区 1的用户数为 7 , 小区 2的用户数为 2 , 3个小区 统计的接入用户数均小于 32 , 且已分配的资源不能保证小区之间正交, 如图 7所示, 这时需要在每个小区进行自适应调整以重新调整 SRS的资源分配, 调整策略按照在相同组的内频分、 Comb分、 码分、 时分的顺序来分配资源, 如图 8所示。
以上步骤 S103 S105 中, 提及的频分、 Comb分、 码分的分配顺序是一 种推荐的分配顺序; 实际过程中,频分、 Comb分、码分的顺序可以任意配置。
另外, 如图 9所示, 本发明实施例还提供一种实现上述方法的协同小区 的 SRS资源配置装置, 包括: 分组单元 91 , 其用于将所有小区分成不同的小区组;
起始时域顺序确定单元 92,其用于确定各个小区组的 SRS起始的时域资 源配置顺序;
SRS资源分组策略确定单元 93 , 其用于根据用户终端的状态信息, 确定 小区 SRS资源分组策略; 以及
SRS资源配置单元 94,其用于根据所述 SRS起始的时域资源配置顺序和 SRS资源分组策略, 对接入每个小区中的用户终端配置 SRS资源。
其中, 所述分组单元 91 是用于以如下方式将所有小区分成不同的小区 组: 按照相邻小区不在同一小区组的原则将所有小区分成不同的小区组。
其中,所述起始时域顺序确定单元 92是用于以如下方式确定各个小区组 的 SRS起始的时域资源配置顺序:
根据 SRS子帧配置,在预定的基准时间内统计 SRS符号数目,得到 SRS 符号数目 N; 以及
根据所述 SRS符号数目 N, 为每个小区组分配 SRS起始的时域资源, 确 定每个小区组的 SRS起始的时域资源配置顺序。
其中, 所述 SRS资源分组策略确定单元 93是用于以如下方式根据用户 终端的状态信息, 确定小区的 SRS资源分组策略:
将每个 SRS时域资源分成了 S组, 其中, S=2M, M为小区 SRS带宽与 用户终端的 SRS带宽的比值; 将不同的频分资源、 梳分资源对应的总的码树 集合标记为 Φ, 其中, <D={k e Z, 0< k < S-l , Z为整数 } ; 以及
当用户终端的状态信息包括 X种时, 则每一种用户终端状态信息都对应 一个码树子集 GroupAi, 其中, GroupAi={k|mod (k, x) = i}, i ί (0, 1 , , χ-1), GroupAi={k\mod (k, χ) = 表示 k除以 x余数为 i的集合。
其中, 用户终端的状态信息包括: 用户属性和场强信息; 其中, 用户属 性包括中心用户或边缘用户; 场强信息包括用户功率受限或者不受限; 根据 用户终端的状态信息确定对应的码树子集: 用户终端功率不受限情况下的边 缘用户对应的码树子集标记为 GmupAO和中心用户对应的码树子集标记为 GroupAi; 用户终端功率受限情况下的边缘用户对应的码树子集标记为 GroupA2和中心用户对应的码树子集标记为 GroupA3。
其中, 所述 SRS资源配置单元 94是用于以如下方式对接入每个小区中 的用户终端配置 SRS资源:
当用户终端建立初始连接时, 才艮据该用户终端所属小区对应的 SRS起始 的时域资源配置顺序,及 GroupAO >GroupAl > Group A2 > ... ... >GroupA(X-l) 的起始频域资源顺序, 为用户终端分配初始的 SRS资源。
其中, 所述 SRS资源配置单元 204是用于以如下方式对接入每个小区中 的用户终端配置 SRS资源:
当获取用户终端的状态信息后, 或当用户终端的状态信息发生改变后, 获取用户终端最新的状态信息 i; 以及
根据用户终端最新的状态信息 i, 为用户终端配置与之对应的 GroupAi 资源; 若 GroupAi没有空闲资源, 则按照频域资源的优先级顺序为用户终端 配置 SRS资源。
其中, 所述装置还包括:
SRS资源重新配置单元 95 , 其用于在设定时间内, 对接入各个小区的用 户终端数进行多次统计, 并求出接入各个小区的平均用户终端数; 当所述平 均用户终端数小于系统支持的最大正交用户终端数, 且为用户终端已分配的 SRS资源小区之间不能正交, 则根据所述 SRS起始的时域资源配置顺序对已 分配的 SRS资源进行重新配置。
由上述实施例可以看出, 本发明实施例中综合考虑了每个小区及其邻区 的情况, 使得相邻小区间在分配 SRS资源时在时域上占用不同的 SRS符号, 并通过 SRS分配的自适应调整, 保证了用户数较少的情况下, 相邻小区间的 SRS完全正交; 同时根据用户属性和用户场强信息对用户进行了分组, 避免 了小区内用户 SRS之间的干扰, 从而大大提高 SRS测量的准确性; 而且, 本 发明实施例中可以减少 CoMP中各协同小区的信令交互, 同时在 SRS资源分 配时具有规律性, 可以有效地抑制小区间的干扰; 最终提升系统的频谱效率, 特别是提高小区边缘用户的频谱效率。 尽管为示例目的, 已经公开了本发明的优选实施例, 本领域的技术人员 将意识到各种改进、 增加和取代也是可能的, 因此, 本发明的范围应当不限 于上述实施例。
工业实用性
釆用本发明实施例的方法和装置, 可以减少 CoMP中各协同小区的信令 交互, 同时在 SRS资源分配时具有规律性, 可以有效的抑制小区间、 小区内 的干扰, 提升系统的频谱效率, 特别是提高小区边缘用户的频谱效率。

Claims

权利要求书
1、 一种协同小区的探测参考信号 SRS资源配置方法, 包括:
将所有小区分成不同的小区组;
确定各个小区组的 SRS起始的时域资源配置顺序;
根据用户终端的状态信息, 确定小区的 SRS资源分组策略; 以及 根据所述 SRS起始的时域资源配置顺序和所述 SRS资源分组策略,对接 入每个小区中的用户终端配置 SRS资源。
2、 如权利要求 1所述的方法, 其中, 将所有小区分成不同的小区组, 包 括:
按照相邻小区不在同一小区组的原则将所有小区分成不同的小区组。
3、 如权利要求 2所述的方法, 其中, 确定各个小区组的 SRS起始的时 域资源配置顺序, 包括:
根据 SRS子帧配置,在预定的基准时间内统计 SRS符号数目,得到 SRS 符号数目 N; 以及
根据所述 SRS符号数目 N, 为每个小区组分配 SRS起始的时域资源, 确 定每个小区组的 SRS起始的时域资源配置顺序。
4、 如权利要求 1或 3所述的方法, 其中, 根据用户终端的状态信息, 确 定小区的 SRS资源分组策略, 包括:
将每个 SRS时域资源分成 S组, 其中, S=2M, M为小区 SRS带宽与用 户终端的 SRS带宽的比值; 将不同的频分资源、 梳分资源对应的总的码树集 合标记为 Φ, 其中, <D={k e Z, 0< k < S-l , Z为整数 } ; 以及
当所述用户终端的状态信息包括 X种时, 则每一种用户终端的状态信息 都对应一个码树子集 GroupAi, 其中, GroupAi={k|mod (k, x) = i}, i ί (0, 1 , , χ-1), GroupAi={k\mod (k, χ) = 表示 k除以 x余数为 i的集合。
5、 如权利要求 4所述的方法, 其中, 对接入每个小区中的用户终端配置
SRS资源, 包括:
当用户终端建立初始连接时, 根据所述用户终端所属小区对应的 SRS起 始的时域资源配置顺序, 及 GroupAO > GroupAi > GroupA2 > >
GroM;¾ -7的起始频域资源顺序, 为所述用户终端分配初始的 SRS资源。
6、 如权利要求 5所述的方法, 其中, 对接入每个小区中的用户终端配置 SRS资源, 包括:
获取所述用户终端的状态信息后, 或所述用户终端的状态信息发生改变 后, 获取所述用户终端的最新的状态信息 i; 以及
才艮据所述用户终端的最新的状态信息 i,为所述用户终端配置与之对应的 GroupAi资源; 若 GroupAi没有空闲资源, 则按照频域资源的优先级顺序为 所述用户终端配置 SRS资源。
7、 如权利要求 1、 5或 6所述的方法, 还包括: 对接入每个小区中的用 户终端配置 SRS资源之后,
在设定时间内, 对接入各个小区的用户终端数进行多次统计, 并求出接 入各个小区的平均用户终端数; 以及
当所述平均用户终端数小于系统支持的最大正交用户终端数, 且为用户 终端已分配的 SRS资源的小区之间不能正交,则根据所述 SRS起始的时域资 源配置顺序对已分配的 SRS资源进行重新配置。
8、 一种协同小区的探测参考信号 SRS资源配置装置, 包括:
分组单元, 其设置成: 将所有小区分成不同的小区组;
起始时域顺序确定单元, 其设置成: 确定各个小区组的 SRS起始的时域 资源配置顺序;
SRS资源分组策略确定单元, 其设置成: 根据用户终端的状态信息, 确 定小区的 SRS资源分组策略; 以及
SRS资源配置单元, 其设置成: 根据所述 SRS起始的时域资源配置顺序 和所述 SRS资源分组策略, 对接入每个小区中的用户终端配置 SRS资源。
9、 如权利要求 8所述的装置, 其中, 所述分组单元是设置成以如下方式 将所有小区分成不同的小区组:
按照相邻小区不在同一小区组的原则将所有小区分成不同的小区组。
10、 如权利要求 9所述的装置, 其中, 所述起始时域顺序确定单元是设 置成以如下方式确定各个小区组的 SRS起始的时域资源配置顺序:
根据 SRS子帧配置,在预定的基准时间内统计 SRS符号数目,得到 SRS 符号数目 N; 以及
根据所述 SRS符号数目 N, 为每个小区组分配 SRS起始的时域资源, 确 定每个小区组的 SRS起始的时域资源配置顺序。
11、 如权利要求 8或 10所述的装置, 其中, 所述 SRS资源分组策略确 定单元是设置成以如下方式才艮据用户终端的状态信息, 确定小区的 SRS资源 分组策略:
将每个 SRS时域资源分成了 S组, 其中, S=2M, M为小区 SRS带宽与 用户终端的 SRS带宽的比值; 将不同的频分资源、 梳分资源对应的总的码树 集合标记为 Φ, 其中, <D={k e Z, 0< k < S-l , Z为整数 } ; 以及
当所述用户终端的状态信息包括 X种时, 则每一种用户终端的状态信息 都对应一个码树子集 GroupAi, 其中, GroupAi={k|mod (k, x) = i}, i ί (0 , 1 , , χ-1), GroupAi={k\mod (k, χ) = 表示 k除以 x余数为 i的集合。
12、 如权利要求 11所述的装置, 其中, 所述 SRS资源配置单元是设置 成以如下方式对接入每个小区中的用户终端配置 SRS资源:
当用户终端建立初始连接时, 根据所述用户终端所属小区对应的 SRS起 始的时域资源配置顺序, 及 GroupAO > GroupAi > GroupA2 > > GroM;¾ -7的起始频域资源顺序, 为所述用户终端分配初始的 SRS资源。
13、 如权利要求 12所述的装置, 其中, 所述 SRS资源配置单元是设置 成以如下方式对接入每个小区中的用户终端配置 SRS资源:
获取所述用户终端的状态信息后, 或所述用户终端的状态信息发生改变 后, 获取所述用户终端的最新的状态信息 i; 以及
才艮据所述用户终端的最新的状态信息 i,为所述用户终端配置与之对应的
GroupAi资源; 若 GroupAi没有空闲资源, 则按照频域资源的优先级顺序为 所述用户终端配置 SRS资源。
14、 如权利要求 8、 12或 13所述的装置, 还包括: SRS资源重新配置单元, 其设置成: 在设定时间内, 对接入各个小区的 用户终端数进行多次统计, 并求出接入各个小区的平均用户终端数; 当所述 平均用户终端数小于系统支持的最大正交用户终端数, 且为用户终端已分配 的 SRS资源的小区之间不能正交,则根据所述 SRS起始的时域资源配置顺序 对已分配的 SRS资源进行重新配置。
PCT/CN2013/085126 2012-12-07 2013-10-12 一种协同小区的探测参考信号资源配置方法及装置 WO2014086203A1 (zh)

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