WO2012171362A1 - 一种构建多点协作传输小区协作集的方法及装置 - Google Patents

一种构建多点协作传输小区协作集的方法及装置 Download PDF

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Publication number
WO2012171362A1
WO2012171362A1 PCT/CN2012/071739 CN2012071739W WO2012171362A1 WO 2012171362 A1 WO2012171362 A1 WO 2012171362A1 CN 2012071739 W CN2012071739 W CN 2012071739W WO 2012171362 A1 WO2012171362 A1 WO 2012171362A1
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terminal
comp
cooperation set
terminals
list
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PCT/CN2012/071739
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English (en)
French (fr)
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栾政敏
阮玉峰
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中兴通讯股份有限公司
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Publication of WO2012171362A1 publication Critical patent/WO2012171362A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • 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

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for constructing a coordinated multi-point transmission (CoMP) cell.
  • CoMP coordinated multi-point transmission
  • the existing LTE-Advanced (LTE Evolution) system uses the same frequency networking technology, and the OFDM (Orthogonal Frequency Division Multiple Access) access mode enables the information of users in the cell to be carried on different subcarriers that are orthogonal to each other. Thereby, multiple access interference between users in the cell is avoided, but inter-cell interference (ICI, Inter-Cell Interference) cannot be suppressed.
  • ICI Inter-cell Interference
  • the useful signal strength is small, and the interference signal strength from the neighboring cells is large, so that the edge users cannot get good service. Therefore, small-area interference suppression has become an urgent problem in LTE-Advanced systems.
  • the CoMP technology is a technology for realizing data transmission by utilizing cooperation between a plurality of geographically separated transmission points, where multiple transmission points refer to different network side access nodes, including but not limited to an evolved base station (eNB) or Wireless relay node.
  • eNB evolved base station
  • the principle of this technology is that multiple base stations cooperatively provide services to edge users by means of distributed network MIMO, thereby effectively improving the effective signal to interference and noise ratio of edge users, as shown in FIG.
  • the premise of using this technology is to construct a suitable CoMP cell cooperative set, namely CoMP cluster.
  • Constructing a CoMP cooperating set means selecting a plurality of base stations from a plurality of adjacent base stations to form a cluster.
  • One is to form CoMP clusters in a fixed manner. The feature is that a fixed number of base stations are selected to form clusters. All users correspond to the same cooperative cluster. The method is simple, but the system performance is limited.
  • the other is to form a CoMP cluster centered on the user, which can form clusters according to the needs of users, and the performance improvement is relatively large, but the complexity is too high;
  • the fixed CoMP cluster is formed with the user as the center to form the final CoMP cluster.
  • the feature is to predetermine a large collaboration set (pre-collection set), and then dynamically select the participating base stations in the pre-collaboration set according to user requirements.
  • pre-collection set a large collaboration set
  • dynamically select the participating base stations in the pre-collaboration set a compromise between performance and complexity.
  • the third type of method is a more discussed method in the industry.
  • the technical problem to be solved by the present invention is to provide a method and device for constructing a CoMP cell cooperation set, which reduces computational complexity and improves system performance.
  • the present invention provides a method for constructing a CoMP cell cooperation set, which includes:
  • the first CoMP cell cooperation set of the first terminal is formed by the base station to which the neighboring terminal belongs, and the first The terminal and the neighboring terminal to be subjected to CoMP operation share the first CoMP cell cooperation set.
  • the determining the terminal to be subjected to the CoMP operation, the step of generating the CoMP terminal list includes: selecting, according to the QoS parameter, the terminal that needs to perform the CoMP operation from the preset network area, and the terminal that needs to perform the CoMP operation according to the QoS parameter Sort and generate a list of CoMP terminals.
  • the step of sorting the terminals that need to perform CoMP operations according to the QoS parameters includes: sorting the terminals that need to perform CoMP operations according to the quality of service, and the service quality is the worst. Terminals are at the forefront;
  • the step of selecting the first terminal from the list of CoMP terminals includes: preferentially selecting the terminal with the worst service quality.
  • the step of selecting the first CoMP cell cooperation set of the first terminal to which the neighboring terminal belongs to the first terminal includes:
  • Obtaining location information of the first terminal by using a positioning technology, determining whether there is an adjacent terminal in a preset range around the first terminal, and if yes, using a positioning technology to obtain a neighboring terminal within a preset range around the terminal And selecting, by the base station to which the neighboring terminal belongs, the first CoMP cell cooperation set of the first terminal.
  • the method further includes: when determining that there is no neighboring terminal within a preset range around the first terminal, using positioning technology to obtain information of one or more base stations within a preset range around the first terminal, and selecting The one or more base stations within the preset range around the first terminal constitute the second CoMP 'J, the zone cooperation set of the first terminal.
  • the step of selecting a first CoMP cell cooperation set of the first terminal to which the neighboring terminal belongs to the first terminal includes: selecting a base station of all base stations to which the neighboring terminal belongs is less than a preset first threshold, and forming the first CoMP cell Collaboration set.
  • the step of selecting one or more base stations in the preset range around the first terminal to form a second CoMP cell cooperation set of the selected terminal includes: selecting all base stations in a preset range around the first terminal The base station whose load rate is less than the preset second threshold constitutes the second CoMP cell cooperation set.
  • the method further includes: after the first CoMP cell cooperation set of the selected terminal is completed, deleting the first terminal and the neighboring terminal to be subjected to the CoMP operation from the CoMP terminal list End, selecting a second terminal from the list of CoMP terminals, and constructing a CoMP cell cooperation set of the second terminal until there is no terminal in the CoMP terminal list.
  • the method further includes: periodically reviewing the quality of service of all the terminals performing the CoMP operation to determine whether to update the CoMP cell cooperation set of the terminal.
  • the present invention also provides an apparatus for constructing a CoMP cell cooperation set, including a CoMP terminal list generation module, a selection module, and a CoMP cell cooperation set construction module, where:
  • the CoMP terminal list generating module is configured to: determine a terminal to be subjected to a CoMP operation, and generate a CoMP terminal list;
  • the selecting module is configured to: select a first terminal from the list of CoMP terminals; and the CoMP cell cooperation set building module is configured to: obtain a neighbor in a preset range around the first terminal by using a positioning technology When the information of the terminal is selected, the first CoMP 'J, the regional cooperation set of the first terminal, which is the base station of the neighboring terminal, is selected, and the first terminal and the neighboring terminal to be subjected to the CoMP operation share the cooperation of the first CoMP cell. set.
  • the CoMP terminal list generating module is configured to determine a terminal to be subjected to CoMP operation in the following manner, and generate a CoMP terminal list: select a terminal that needs to perform CoMP operation from a preset network area according to a quality of service parameter, according to a quality of service parameter. Sorting the terminals that need to perform CoMP operations, ranking the terminals with the worst quality of service to the front, and generating a list of CoMP terminals;
  • the selection module is configured to select the first terminal from the list of CoMP terminals in the following manner: preferentially select the terminal with the worst quality of service.
  • the CoMP cell cooperation set building module is configured to: when using the positioning technology to obtain information about neighboring terminals within a preset range around the first terminal, select a base station to which the neighboring terminal belongs to form a selected terminal.
  • First CoMP Community Collaboration Set :
  • Obtaining location information of the first terminal by using a positioning technology determining whether there is an adjacent terminal in a preset range around the first terminal, and if yes, obtaining the first terminal by using a positioning technology
  • the information about the neighboring terminals in the preset range is selected, and the first CoMP cell cooperation set that constitutes the first terminal by the base station to which the neighboring terminal belongs is selected;
  • the CoMP cell cooperation set building module is further configured to: when determining that there is no adjacent terminal within the preset range around the first terminal, use positioning technology to obtain one or more preset ranges within the first terminal And selecting, by the base station, one or more base stations in the preset range around the first terminal to form a second CoMP cell cooperation set of the first terminal.
  • the CoMP cell cooperation set construction module is configured to select a first CoMP cell cooperation set in which the base station to which the neighboring terminal belongs to form the first terminal in the following manner: selecting a load rate of the base station to which all adjacent terminals belong is less than a preset first
  • the base station of the threshold constitutes the first CoMP cell cooperation set
  • the CoMP cell cooperation set construction module is configured to select one or more base stations in the preset range around the first terminal to form the selected terminal by using the following manner
  • the second CoMP cell cooperation set is: selecting a base station whose load rate is less than a preset second threshold among all base stations in the preset range around the first terminal to form the second CoMP cell cooperation set.
  • the apparatus further includes: an update module configured to: periodically review the quality of service of all the CoMP-operated terminals to determine whether to update the CoMP cell cooperation set of the terminal.
  • the location information of the user is introduced when constructing the CoMP cell cooperation set, and the same collaborative cluster is used for users in similar positions, which greatly reduces The computational complexity.
  • the present invention has a practical significance in improving the wireless communication environment in a small area, and can effectively improve system performance.
  • FIG. 1 is a schematic diagram of a communication system using CoMP technology and CoMP technology
  • FIG. 2 is a flowchart of constructing a collaboration set by using a positioning technology according to Embodiment 1 of the present invention
  • FIG. 3 is a device for constructing a CoMP cell cooperation set according to Embodiment 1 of the present invention
  • 4 is a flowchart of constructing a collaboration set by using a positioning technology according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic diagram of constructing a collaboration set by using a positioning technology according to Embodiment 2 of the present invention.
  • the method for constructing a CoMP cell cooperation set in this embodiment includes the following steps: Step 210: Determine a terminal to be subjected to a CoMP operation, and generate a CoMP terminal list; the CoMP terminal list is determined according to a quality of service parameter, specifically The following method is used to determine: the mobile terminal that needs to perform CoMP operation is selected from the preset network area according to the quality of service parameter, and the mobile terminals that need to perform CoMP operation are sorted according to the quality of service parameter, and the foregoing CoMP terminal list is obtained.
  • a mobile terminal that needs to perform CoMP operation is usually a terminal that is more interfered at the edge of the cell.
  • the service quality parameter used to select the mobile terminal that needs to perform CoMP operation includes one or more of the following parameters: Signal Interference Noise Ratio (SINR), Reference Signal Receive Quality (RSRQ) ), Reference Signal Receive Power (RSRP), and a function that includes one or more of the above parameters.
  • SINR Signal Interference Noise Ratio
  • RSRQ Reference Signal Receive Quality
  • RSRP Reference Signal Receive Power
  • All user terminals that need to perform CoMP operations are sorted according to the quality of service, and the terminal with the worst service quality is ranked first (ie, according to The size of the measured values is sorted, for example, the terminal with the lowest measured value is ranked first, and a list of CoMP terminals is obtained. Priority is given to CoMP operations for users with the worst service.
  • Step 220 Select a terminal from the list of the CoMP terminals.
  • the terminal with the worst quality of service is preferentially selected, and the selected terminal may be referred to as a lord.
  • Step 230 If using a positioning technology to obtain an adjacent terminal within a preset range around the selected terminal The information of the end is selected by the base station to which the neighboring terminal belongs to form the first CoMP cell cooperation set, and the selected terminal and the neighboring terminal to be subjected to the CoMP operation share the first CoMP cell cooperation set.
  • Obtaining location information of the selected terminal by using a positioning technology, determining whether there is an adjacent terminal within a preset range around the terminal, and if so, using positioning technology to obtain information of the neighboring terminal within a preset range around the selected terminal (For example, the terminal identifier and the location information, the base station to which the terminal belongs may be determined according to the terminal identifier, and whether the terminal is in the CoMP terminal list medium information), and the first CoMP cell cooperation set in which the base station to which the neighboring terminal belongs is selected to form the selected terminal. .
  • the positioning technology is used to obtain information (for example, a base station identifier) of one or more base stations within a preset range around the selected terminal, and the selected terminal is selected.
  • the one or more base stations in the range constitute a second CoMP cell of the selected terminal, and the base station with a relatively small load is entered into the cooperation set.
  • the method includes: selecting a base station in which the load rate of all the neighboring terminals belongs to be smaller than a preset first threshold to form the first CoMP cell cooperation set. And selecting, by the base stations in all the base stations in the preset range around the selected terminal, that the load rate is less than the preset second threshold, to form the second CoMP cell cooperation set.
  • the preset range around the selected terminal may be referred to as a collar, and the collar may be set to a geometric range centered on the position of the lord. Adjacent terminals within the collar area may be referred to as affiliate terminals of the lord.
  • the above positioning technologies include: satellite positioning, ground wireless positioning, or hybrid positioning technology and other positioning technologies.
  • the selected terminal is deleted from the CoMP terminal list, and if there is an adjacent terminal to be subjected to the CoMP operation, the adjacent terminal is also deleted.
  • the operations of the above steps 220-230 are continued to be repeated for the terminals in the CoMP terminal list until all the terminals in the CoMP terminal list have constructed the CoMP cell cooperation set.
  • the selected terminal After the CoMP cell cooperation set of the selected terminal is formed, the selected terminal performs a CoMP operation, that is, the base station to which the selected terminal belongs and the base station in the CoMP cell cooperation set cooperate to transmit data to the selected terminal.
  • a CoMP operation that is, the base station to which the selected terminal belongs and the base station in the CoMP cell cooperation set cooperate to transmit data to the selected terminal.
  • the quality of service of all the terminals performing CoMP operations is periodically reviewed to determine whether to update the CoMP cell cooperation set of the terminal. If the measured value of the parameter representing the quality of service is lower than the set threshold, step 230 is repeatedly performed on the terminal to update the CoMP cell cooperation set of the terminal.
  • the CoMP cell cooperation set is shared between the terminal and the neighboring terminal, so that all users in the CoMP terminal list in the collar area use the same collaboration cluster, and the user does not have to calculate separately for each user, which reduces the calculation amount and reduces the complexity.
  • the apparatus for implementing the foregoing method includes a CoMP terminal list generation module, a selection module, and a CoMP cell cooperation set construction module, where:
  • the CoMP terminal list generating module is configured to determine a terminal to be subjected to a CoMP operation, and generate a CoMP terminal list;
  • the selection module is configured to select a terminal from the list of CoMP terminals
  • the CoMP cell cooperation set construction module is configured to: when obtaining information of a neighboring terminal within a preset range around the selected terminal by using a positioning technology, selecting a first CoMP cell cooperation set of the selected terminal of the neighboring terminal to form the selected terminal The selected terminal and the neighboring terminal to be subjected to the CoMP operation share the first CoMP cell cooperation set.
  • the CoMP terminal list generating module is configured to determine a terminal to be subjected to CoMP operation in the following manner, and generate a CoMP terminal list: select a terminal that needs to perform CoMP operation from a preset network area according to the quality of service parameter,
  • the QoS parameter sorts the terminals that need to perform CoMP operations, and ranks the terminals with the worst quality of service at the forefront to generate a CoMP terminal list.
  • the selection module is configured to select from the list of CoMP terminals in the following manner. Terminal: Priority is given to the terminal with the worst quality of service.
  • the CoMP cell cooperation set building module is configured to select, when using the positioning technology to obtain information about neighboring terminals within a preset range around the selected terminal, selecting a base station component to which the neighboring terminal belongs.
  • the first CoMP cell cooperation set of the terminal obtaining location information of the selected terminal by using a positioning technology, determining whether there is an adjacent terminal within a preset range around the terminal, and if so, using the positioning technology to obtain a pre-preparation around the selected terminal a letter of a neighboring terminal within the range And selecting, by the base station to which the neighboring terminal belongs, the first CoMP cell cooperation set of the selected terminal; the CoMP cell cooperation set construction module is further configured to use the positioning technology if there is no adjacent terminal within the preset range around the terminal. Obtaining information of one or more base stations within a preset range around the selected terminal, and selecting one or more base stations within a preset range around the selected terminal to form a second CoMP cell cooperation set of the selected terminal.
  • the CoMP cell cooperation set construction module is configured to: select, by using the following manner, a first CoMP cell cooperation set of the selected terminal of the base station to which the neighboring terminal belongs: select a load rate of the base station to which all the adjacent terminals belong to be less than a preset number.
  • a threshold base station constitutes the first CoMP cell cooperation set;
  • the CoMP cell cooperation set construction module is configured to select one or more base stations in a preset range around the selected terminal to form the selected terminal
  • the second CoMP cell cooperation set is: selecting a base station whose load rate is less than a preset second threshold among all the base stations in the preset range around the selected terminal to form the second CoMP cell cooperation set.
  • the apparatus further includes an update module configured to periodically review the quality of service of all the CoMP-operated terminals to determine whether to update the CoMP cell cooperation set of the terminal.
  • SINR Signal Interference Noise Ratio
  • Step 410 Determine a CoMP pre-collection set and a pre-CoMP operation terminal list.
  • the method includes: dividing a geographic area (such as a city center commercial area, a town, and the like) according to requirements, and using all network access points such as base stations in the area as one large Pre-collaboration set C. ;
  • Step 420 Determine a priority CoMP terminal list (ie, a list of CoMP terminals in Embodiment 1);
  • Step 430 Select a leader terminal of the priority CoMP terminal list, and determine a collar area of the lord terminal and its affiliate terminal by using a positioning technology
  • Step 440 Determine a CoMP cell cooperation set of the lord terminal, including:
  • the base station to which all the subordinate terminals in the territorial terminal are located is examined. If the base station load rate is lower than the preset threshold, the base station is selected into the CoMP cell cooperation set of the lord terminal; if no base station is selected, or the load of each base station If the rate is high, the positioning technology can be used to locate the nearest one or more base stations with lower load rates as the CoMP cell cooperation set of the lord terminal.
  • Step 450 related processing of the accessory terminal; including:
  • the affiliate terminal and the lord terminal use the same CoMP cell cooperation set; the affiliate terminal and the lord terminal both join the CoMP operation terminal set and are deleted from the priority CoMP terminal list.
  • CoMP terminals in the same territorial area because of the proximity of geographical locations, and using the same collaborative set, it may be easier and more efficient to use a coordinated CS transmission scheme.
  • a more efficient transmission scheme can be developed based on this feature.
  • the CoMP operation terminal set stores a set of all the terminals that perform the CoMP operation, and periodically checks the CoMP terminal in the CoMP operation terminal set to determine whether it is necessary to update the CoMP cell cooperation set of each terminal, or whether the terminals need to be updated. Perform CoMP operations, etc., such as periodically evaluating the quality of service if the quality is below the threshold of 57NR_73 ⁇ 4m ⁇ W. , then put it in the list of priority CoMP terminals.
  • Subsequent related processing includes: Steps 430-450 are sequentially performed on the terminals in the priority CoMP terminal list until one CoMP cooperation set generation work is completed.
  • the location information of the user is introduced when constructing the CoMP cell cooperation set, and the same collaborative cluster is used for users in similar positions, which greatly reduces computational complexity. degree.
  • the present invention has a practical significance in improving the wireless communication environment in a small area, and can effectively improve system performance.

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Abstract

本发明公开了一种构建CoMP小区协作集的方法及装置,降低计算复杂度,提升系统性能。所述方法包括:确定待进行CoMP操作的终端,生成CoMP终端列表;从CoMP终端列表中选择终端;若利用定位技术获得在所选择终端周围预设范围内的相邻终端的信息,则选取相邻终端所属基站组成所选择终端的第一CoMP小区协作集,所选择终端以及待进行CoMP操作的相邻终端共用第一CoMP小区协作集。所述装置包括CoMP终端列表生成模块、选择模块,以及CoMP小区协作集构建模块。采用本发明方法和装置,由于在构建CoMP小区协作集时引入了用户的位置信息,对相近位置的用户采用相同的协作簇,降低了计算复杂度,有效地提升了系统性能。

Description

一种构建多点协作传输小区协作集的方法及装置
技术领域
本发明涉及无线通信技术领域,尤其涉及一种构建多点协作传输( CoMP ) 小区协作集的方法及装置。
背景技术
现有的 LTE-Advanced ( LTE的演进 ) 系统釆用同频组网技术 , OFDM (正交频分多址) 的接入方式使小区内用户的信息承载在相互正交的不同子 载波上,从而避免了小区内用户间的多址干扰,却无法抑制小区间干扰(ICI, Inter-Cell Interference ) 。 对于小区边缘用户而言, 有用信号强度小, 同时来 自相邻小区的干扰信号强度大, 使得边缘用户得不到很好的服务。 因此, 小 区间干扰抑制成为了 LTE-Advanced 系统中亟待解决的问题。
为了解决这个问题, 业界曾先后提出过各种技术, 如功率控制、 灵活的 频率复用、 随机干扰消除等。 这些技术均能提高边缘用户吞吐量, 但却以小 区整体吞吐量降低为代价。 在这种情况下, 多点协作传输( CoMP )技术被提 出来。
CoMP技术是利用地理位置上分离的多个传输点之间的协作来实现数据 传输的技术, 其中, 多个传输点是指不同的网络侧接入节点, 包括但不限于 演进基站 (eNB )或无线中继节点。 这种技术的原理是多个基站釆用分布式 网络 MIMO的方式协同地对边缘用户提供服务, 从而有效地提高边缘用户的 有效信干噪比, 如图 1所示。 釆用这种技术的前提是先构造合适的 CoMP小 区协作集, 即 CoMP簇。
构建 CoMP协作集是指从相邻的多个基站中选择若干个基站形成一个 簇。现有的 CoMP协作集构建方法主要有三类,一类是以固定方式形成 CoMP 簇, 特点是选择固定数目的基站形成簇, 所有用户对应相同的协作簇, 方法 简单, 但对系统性能提升有限; 另一类是以用户为中心形成 CoMP簇, 能够 根据用户的需求形成簇, 性能提升比较大, 但复杂度过高; 还有一类是基于 固定 CoMP簇, 以用户为中心形成最终的 CoMP簇, 特点是预先确定一个大 的协作集(预协作集) , 然后根据用户需求在预协作集中动态地选择参与协 作的基站, 这类方法是前两类方法的折中, 进而可获得性能和复杂度之间的 折中。 第三类方法是业内讨论比较多的方法。
现有方法大多根据每个用户的需求在预协作簇中动态地选择参与协作的 基站, 其中或有釆用参数门限判断选出最终的协作簇的方法或有釆用复杂的 算法来选出最终的协作簇的方法。 但是随着网络规模的扩大, 现有的这些方 法仍然会带来复杂度的急剧增加, 性能却可能没有相应的提升的问题。
发明内容
本发明要解决的技术问题是提供一种构建 CoMP小区协作集的方法及装 置, 降低计算复杂度, 提升系统性能。
为解决上述技术问题,本发明提供了一种构建 CoMP小区协作集的方法, 其包括:
确定待进行 CoMP操作的终端, 生成 CoMP终端列表;
从所述 CoMP终端列表中选择出第一终端;
在利用定位技术获得在所述第一终端周围预设范围内的相邻终端的信息 时,选取所述相邻终端所属基站组成所述第一终端的第一 CoMP小区协作集, 所述第一终端以及待进行 CoMP操作的所述相邻终端共用所述第一 CoMP小 区协作集。
上述方法还可具有以下特点:
所述确定待进行 CoMP操作的终端, 生成 CoMP终端列表的步骤包括: 根据服务质量参数从预设的网络区域中选择需要进行 CoMP操作的终 端, 依据服务质量参数对所述需要进行 CoMP操作的终端进行排序, 生成 CoMP终端列表。
上述方法还可具有以下特点:
所述依据服务质量参数对需要进行 CoMP操作的终端进行排序的步骤包 括: 按照服务质量对需要进行 CoMP操作的终端进行排序, 将服务质量最差 的终端排在最前面;
从所述 CoMP终端列表中选择出第一终端的步骤包括: 优先选择服务质 量最差的终端。
上述方法还可具有以下特点:
所述当利用定位技术获得在所述第一终端周围预设范围内的相邻终端的 信息时, 选取相邻终端所属基站组成所述第一终端的第一 CoMP小区协作集 的步骤包括:
利用定位技术获得所述第一终端的位置信息, 判断在所述第一终端周围 预设范围内是否有相邻终端, 如果有, 则利用定位技术获得在终端周围预设 范围内的相邻终端的信息, 选取相邻终端所属基站组成所述第一终端的第一 CoMP小区协作集。
上述方法还可具有以下特点:
所述方法还包括: 在判断在所述第一终端周围预设范围内没有相邻终端 时, 利用定位技术获得在所述第一终端周围预设范围内的一个或多个基站的 信息, 选取所诉第一终端周围预设范围内的一个或多个基站组成该所述第一 终端的第二 CoMP 'J、区协作集。
上述方法还可具有以下特点:
所述选取相邻终端所属基站组成所述第一终端的第一 CoMP小区协作集 的步骤包括: 选取所有相邻终端所属基站中负荷率小于预设第一门限的基站 组成所述第一 CoMP小区协作集。
上述方法还可具有以下特点:
所述选取所述第一终端周围预设范围内的一个或多个基站组成该所选择 终端的第二 CoMP小区协作集的步骤包括: 选取所述第一终端周围预设范围 内的所有基站中负荷率小于预设第二门限的基站组成所述第二 CoMP小区协 作集。
上述方法还可具有以下特点:
所述方法还包括: 所选择终端的第一 CoMP小区协作集组成完成后, 从 所述 CoMP终端列表中删除该所述第一终端和待进行 CoMP操作的相邻终 端,继续从所述 CoMP终端列表中选择第二终端,构建所述第二终端的 CoMP 小区协作集, 直到所述 CoMP终端列表中没有终端为止。
上述方法还可具有以下特点:
所述方法还包括: 定期对所有进行 CoMP操作的终端的服务质量进行复 查, 以决定是否更新该终端的 CoMP小区协作集。
本发明还提供一种构建 CoMP小区协作集的装置, 包括 CoMP终端列表 生成模块、 选择模块, 以及 CoMP小区协作集构建模块, 其中:
所述 CoMP终端列表生成模块设置为: 确定待进行 CoMP操作的终端, 生成 CoMP终端列表;
所述选择模块设置为: 从所述 CoMP终端列表中选择出第一终端; 所述 CoMP小区协作集构建模块设置为: 在利用定位技术获得在所述第 一终端周围预设范围内的相邻终端的信息时, 选取相邻终端所属基站组成所 述第一终端的第一 CoMP 'J、区协作集, 所述第一终端以及待进行 CoMP操作 的相邻终端共用所述第一 CoMP小区协作集。
上述装置还可具有以下特点:
所述 CoMP终端列表生成模块是设置为釆用以下方式确定待进行 CoMP 操作的终端, 生成 CoMP终端列表: 根据服务质量参数从预设的网络区域中 选择需要进行 CoMP操作的终端, 按照服务质量参数对所述需要进行 CoMP 操作的终端进行排序, 将服务质量最差的终端排在最前面, 生成 CoMP终端 列表;
所述选择模块是设置为釆用以下方式从所述 CoMP终端列表中选择出第 一终端: 优先选择服务质量最差的终端。
上述装置还可具有以下特点:
所述 CoMP小区协作集构建模块是设置为釆用以下方式在利用定位技术 获得在所述第一终端周围预设范围内的相邻终端的信息时, 选取相邻终端所 属基站组成所选择终端的第一 CoMP小区协作集:
利用定位技术获得所述第一终端的位置信息, 判断在所述第一终端周围 预设范围内是否有相邻终端, 如果有, 则利用定位技术获得在所述第一终端 周围预设范围内的相邻终端的信息, 选取相邻终端所属基站组成所述第一终 端的第一 CoMP小区协作集;
所述 CoMP小区协作集构建模块还设置为: 在判断所述第一终端周围预 设范围内没有相邻终端时, 利用定位技术获得在所述第一终端周围预设范围 内的一个或多个基站的信息, 选取所述第一终端周围预设范围内的一个或多 个基站组成所述第一终端的第二 CoMP小区协作集。
上述装置还可具有以下特点:
所述 CoMP小区协作集构建模块是设置为釆用以下方式选取相邻终端所 属基站组成所述第一终端的第一 CoMP小区协作集: 选取所有相邻终端所属 基站中负荷率小于预设第一门限的基站组成所述第一 CoMP小区协作集; 所述 CoMP小区协作集构建模块是设置为釆用以下方式选取所述第一终 端周围预设范围内的一个或多个基站组成该所选择终端的第二 CoMP小区协 作集: 选取所述第一终端周围预设范围内的所有基站中负荷率小于预设第二 门限的基站组成所述第二 CoMP小区协作集。
上述装置还可具有以下特点:
所述装置还包括: 更新模块, 其设置为: 定期对所有进行 CoMP操作的 终端的服务质量进行复查, 以确定是否更新该终端的 CoMP小区协作集。
釆用本发明所述方法和装置,由于考虑到相近位置用户的某些相似特性, 在构建 CoMP小区协作集时引入了用户的位置信息, 对相近位置的用户釆用 相同的协作簇, 大大降低了计算复杂度。 另外, 本发明在小区域范围内改善 无线通信环境, 更具有实际意义, 能有效的提升系统性能。 附图概述
图 1为釆用 CoMP技术和不釆用 CoMP技术的通信系统示意图; 图 2为本发明实施例 1利用定位技术构建协作集的流程图;
图 3为本发明实施例 1的构建 CoMP小区协作集的装置; 图 4为本发明实施例 2利用定位技术构建协作集的流程图; 图 5为本发明实施例 2利用定位技术构建协作集的示意图。 本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 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。
实施例 1
如图 2所示, 本实施例构建 CoMP小区协作集的方法包括以下步骤: 步骤 210, 确定待进行 CoMP操作的终端, 生成 CoMP终端列表; 该 CoMP终端列表根据服务质量参数来确定,具体可釆用以下方法确定: 根据服务质量参数从预设的网络区域中选择需要进行 CoMP操作的移动 终端,并依据服务质量参数对这些需要进行 CoMP操作的移动终端进行排序, 得到上述 CoMP终端列表。
需要进行 CoMP操作的移动终端通常为处于小区边缘受干扰较严重的终 端。 上述用来选取需要进行 CoMP操作移动终端的服务质量参数包括以下参 数中的一种或几种: 信干比 ( Signal Interference Noise Ratio, 简称 SINR ) 、 参考信号接收质量( Reference Signal Receive Quality, 简称 RSRQ ) 、 参考信 号接收电平 ( Reference Signal Receive Power, 简称 RSRP ) , 以及包含上述 一种或几种参数的函数。 在选定用作选择终端的服务质量参数后, 设定该服 务质量参数的阔值, 将预设网络区域内所有移动终端的服务质量参数测量值 与阔值进行比较, 通常来说, 如果测量值低于此阔值就认为该用户终端的服 务质量差, 需要进行 CoMP操作, 对所有需要进行 CoMP操作的用户终端按 照服务质量进行排序, 将服务质量最差的终端排在最前面 (即按照测量值的 大小进行排序, 例如将测量值最低的终端排在最前面) , 得到 CoMP终端列 表。 优先对服务最差的用户进行 CoMP操作。
步骤 220 , 从该 CoMP终端列表中选择终端;
优先选择服务质量最差的终端, 该被选择的终端可以称为领主。
步骤 230 , 若利用定位技术获得在所选择终端周围预设范围内的相邻终 端的信息, 则选取相邻终端所属基站组成所选择终端的第一 CoMP小区协作 集, 所选择终端以及待进行 CoMP操作的相邻终端共用所述第一 CoMP小区 协作集。
具体包括:
利用定位技术获得所选择终端的位置信息, 判断在该终端周围预设范围 内是否有相邻终端, 如果有, 则利用定位技术获得在该所选择终端周围预设 范围内的相邻终端的信息 (例如终端标识和位置信息, 才艮据终端标识可以确 定该终端所属的基站, 以及该终端是否在 CoMP终端列表中等信息) , 选取 相邻终端所属基站组成所选择终端的第一 CoMP小区协作集。 如果判断在该 终端周围预设范围内没有相邻终端, 则利用定位技术获得在该所选择终端周 围预设范围内的一个或多个基站的信息 (例如基站标识) , 选取所选择终端 周围预设范围内的一个或多个基站组成该所选择终端的第二 CoMP小区协作 优先选择负荷相对比较小的基站进入协作集。 包括: 选取所有相邻终端 所属基站中负荷率小于预设第一门限的基站组成所述第一 CoMP 小区协作 集。 以及, 选取所选择终端周围预设范围内的所有基站中负荷率小于预设第 二门限的基站组成所述第二 CoMP小区协作集。
该所选择的终端周围预设的范围可以称为领区, 领区可以设为以领主位 置为中心的几何范围。 该领区内的相邻终端可称为领主的附属终端。
上述定位技术包括: 卫星无线定位、 地面无线定位, 或者混合定位技术 等各种定位技术。
所选择终端的 CoMP 'J、区协作集组成完成后, 从该 CoMP终端列表中删 除该所选择终端, 如果有待进行 CoMP操作的相邻终端, 则也删除该相邻终 端。继续对 CoMP终端列表中的终端重复上述步骤 220-230的操作,直到 CoMP 终端列表中所有终端全部构建完 CoMP小区协作集。
组成所选择终端的 CoMP小区协作集后, 所选择终端进行 CoMP操作, 即所选择终端的所属基站以及所述 CoMP小区协作集中的基站协作向所选择 终端传输数据。 可选地, 定期对所有进行 CoMP操作的终端的服务质量进行复查, 以决 定是否更新该终端的 CoMP小区协作集。 如果表征服务质量的参数的测量值 低于设定的阔值, 则对该终端重复执行步骤 230, 更新该终端的 CoMP小区 协作集。
通过终端与相邻终端共用 CoMP小区协作集,使得领区内的所有在 CoMP 终端列表中的用户釆用相同的协作簇, 不必为每个用户单独计算, 减少了计 算量, 降低了复杂度。
如图 3所示, 实现上述方法的装置包括 CoMP终端列表生成模块、 选择 模块, 以及 CoMP小区协作集构建模块, 其中:
所述 CoMP终端列表生成模块, 设置为确定待进行 CoMP操作的终端, 生成 CoMP终端列表;
所述选择模块, 设置为从所述 CoMP终端列表中选择终端;
所述 CoMP小区协作集构建模块, 设置为在利用定位技术获得在所选择 终端周围预设范围内的相邻终端的信息时, 选取相邻终端所属基站组成所选 择终端的第一 CoMP小区协作集, 所选择终端以及待进行 CoMP操作的相邻 终端共用该第一 CoMP小区协作集。
可选地, 该 CoMP终端列表生成模块是设置为釆用以下方式确定待进行 CoMP操作的终端, 生成 CoMP终端列表: 根据服务质量参数从预设的网络 区域中选择需要进行 CoMP操作的终端, 按照服务质量参数对所述需要进行 CoMP操作的终端进行排序,将服务质量最差的终端排在最前面,生成 CoMP 终端列表; 所述选择模块用于釆用以下方式从所述 CoMP终端列表中选择终 端: 优先选择服务质量最差的终端。
可选地, 所述 CoMP小区协作集构建模块是设置为釆用以下方式在利用 定位技术获得在所选择终端周围预设范围内的相邻终端的信息时, 选取相邻 终端所属基站组成所选择终端的第一 CoMP小区协作集: 利用定位技术获得 所选择终端的位置信息, 判断在该终端周围预设范围内是否有相邻终端, 如 果有, 则利用定位技术获得在该所选择终端周围预设范围内的相邻终端的信 息, 选取相邻终端所属基站组成所选择终端的第一 CoMP小区协作集; 所述 CoMP小区协作集构建模块还设置为在判断该终端周围预设范围内 如果没有相邻终端时, 利用定位技术获得在该所选择终端周围预设范围内的 一个或多个基站的信息, 选取所选择终端周围预设范围内的一个或多个基站 组成该所选择终端的第二 CoMP小区协作集。
可选地, 所述 CoMP小区协作集构建模块设置为釆用以下方式选取相邻 终端所属基站组成所选择终端的第一 CoMP小区协作集: 选取所有相邻终端 所属基站中负荷率小于预设第一门限的基站组成所述第一 CoMP 小区协作 集; 所述 CoMP小区协作集构建模块用于釆用以下方式选取所选择终端周围 预设范围内的一个或多个基站组成该所选择终端的第二 CoMP小区协作集: 选取所选择终端周围预设范围内的所有基站中负荷率小于预设第二门限的基 站组成所述第二 CoMP小区协作集。
可选地, 所述装置还包括更新模块, 其设置为定期对所有进行 CoMP操 作的终端的服务质量进行复查,以确定是否更新该终端的 CoMP小区协作集。
实施例 2
下面以一具体示例对上述方法进行说明。 本实施例涉及的服务质量参数 为: 信号干扰噪声比(SINR, Signal Interference Noise Ratio ) 。 如图 4所示, 包括以下步骤:
步骤 410, 确定 CoMP预协作集以及预 CoMP操作终端列表; 具体包括: 根据需要划分一个地理区域(比如城市中心商业区、 城镇等) , 将该区 域内所有的基站等网络接入点作为一个大的预协作集 C。;
对 C。中所有的终端 UNonCoMP =、uNonCoMP」 } (不包含已经确定进行 CoMP操作 的终端)计算信干比 V o , 并与阔值 57NR_ 7¾r^0W。比较, 所有小于阔值的 终端都加入预 CoMP操作终端列表。
步骤 420,确定优先 CoMP终端列表(即实施例 1中的 CoMP终端列表 ); 包括:
对预 CoMP操作终端列表中的终端, 按信干噪比排序, 信干噪比差的终 端排在前面, 得到优先 CoMP终端列表;
步骤 430, 优先 CoMP终端列表选择领主终端, 利用定位技术确定出领 主终端的领区及其附属终端; 包括:
将优先 CoMP终端列表中的第一个终端" cMP。 。 (排在前面的终端 )定义 为领主终端, 通过网络侧利用定位技术获得该领主终端的位置信息 (如二维 坐标) , 并将以该领主终端为中心的半径为 R的范围定义为该终端的领区, 如图 5所示;
利用定位技术确定领区内所有用户终端 (领主终端的附属终端) 的标识 信息, 根据该些标识信息确定各附属终端所属的基站, 进而确定这些基站的 负荷率等信息;
步骤 440, 确定领主终端的 CoMP小区协作集; 包括:
对领主终端领区内所有的附属终端所属的基站进行考察, 如果基站负荷 率低于预设门限, 将该基站选入领主终端的 CoMP小区协作集合; 如果没有 基站入选, 或者每个基站的负荷率都很高, 则可利用定位技术定位出最近的 一个或者多个负荷率较低的基站作为该领主终端的 CoMP小区协作集合。
步骤 450, 附属终端的相关处理; 包括:
判断附属终端如果属于优先 CoMP终端列表, 则附属终端和领主终端釆 用相同的 CoMP小区协作集; 该附属终端和领主终端均加入 CoMP操作终端 集, 并从优先 CoMP终端列表中删除。
同一个领区中的 CoMP终端, 因为地理位置的接近, 且使用相同的协作 集, 此时釆用调用协同 CS传输方案或许更简单有效。 即可根据这一特性制 定更有效的传输方案。
该 CoMP操作终端集为保存了所有进行 CoMP操作的终端的集合, 对于 该 CoMP操作终端集中的 CoMP终端定期进行复查, 判断是否需要更新各终 端的 CoMP小区协作集合, 或者判断该些终端是否还需进行 CoMP操作等, 例如定期评估其服务质量,如果质量低于门限 57NR_7¾m^W。, 则将其放入优 先 CoMP终端列表。
后续相关处理包括: 依次对优先 CoMP终端列表中的终端执行步骤 430-450,直到一次 CoMP 协作集生成工作完成。
定期启动下一次 CoMP分簇程序。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
当然, 本发明还可有其他多种实施例, 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性
釆用上述方法和装置, 由于考虑到相近位置用户的某些相似特性, 在构 建 CoMP小区协作集时引入了用户的位置信息, 对相近位置的用户釆用相同 的协作簇, 大大降低了计算复杂度。 另外, 本发明在小区域范围内改善无线 通信环境, 更具有实际意义, 能有效的提升系统性能。

Claims

权 利 要 求 书
1、 一种构建多点协作传输(CoMP ) 小区协作集的方法, 其包括: 确定待进行 CoMP操作的终端, 生成 CoMP终端列表;
从所述 CoMP终端列表中选择出第一终端;
在利用定位技术获得在所述第一终端周围预设范围内的相邻终端的信息 时,选取所述相邻终端所属基站组成所述第一终端的第一 CoMP小区协作集, 所述第一终端以及待进行 CoMP操作的所述相邻终端共用所述第一 CoMP小 区协作集。
2、 如权利要求 1所述的方法, 其中:
所述确定待进行 CoMP操作的终端, 生成 CoMP终端列表的步骤包括: 根据服务质量参数从预设的网络区域中选择需要进行 CoMP操作的终 端, 依据服务质量参数对所述需要进行 CoMP操作的终端进行排序, 生成 CoMP终端列表。
3、 如权利要求 2所述的方法, 其中:
所述依据服务质量参数对需要进行 CoMP操作的终端进行排序的步骤包 括: 按照服务质量对需要进行 CoMP操作的终端进行排序, 将服务质量最差 的终端排在最前面;
从所述 CoMP终端列表中选择出第一终端的步骤包括: 优先选择服务质 量最差的终端。
4、 如权利要求 1或 2或 3所述的方法, 其中:
所述当利用定位技术获得在所述第一终端周围预设范围内的相邻终端的 信息时, 选取相邻终端所属基站组成所述第一终端的第一 CoMP小区协作集 的步骤包括:
利用定位技术获得所述第一终端的位置信息, 判断在所述第一终端周围 预设范围内是否有相邻终端, 如果有, 则利用定位技术获得在终端周围预设 范围内的相邻终端的信息, 选取相邻终端所属基站组成所述第一终端的第一 CoMP小区协作集。
5、 如权利要求 4所述的方法, 其还包括:
在判断在所述第一终端周围预设范围内没有相邻终端时, 利用定位技术 获得在所述第一终端周围预设范围内的一个或多个基站的信息, 选取所诉第 一终端周围预设范围内的一个或多个基站组成该所述第一终端的第二 CoMP 小区协作集。
6、 如权利要求 4所述的方法, 其中:
所述选取相邻终端所属基站组成所述第一终端的第一 CoMP小区协作集 的步骤包括: 选取所有相邻终端所属基站中负荷率小于预设第一门限的基站 组成所述第一 CoMP 'J、区协作集。
7、 如权利要求 5所述的方法, 其中:
所述选取所述第一终端周围预设范围内的一个或多个基站组成该所选择 终端的第二 CoMP小区协作集的步骤包括: 选取所述第一终端周围预设范围 内的所有基站中负荷率小于预设第二门限的基站组成所述第二 CoMP小区协 作集。
8、 如权利要求 4所述的方法, 其还包括:
所选择终端的第一 CoMP 'J、区协作集组成完成后, 从所述 CoMP终端列 表中删除该所述第一终端和待进行 CoMP操作的相邻终端,继续从所述 CoMP 终端列表中选择第二终端, 构建所述第二终端的 CoMP小区协作集, 直到所 述 CoMP终端列表中没有终端为止。
9、 如权利要求 1所述的方法, 其还包括:
定期对所有进行 CoMP操作的终端的服务质量进行复查, 以决定是否更 新该终端的 CoMP 'J、区协作集。
10、 一种构建多点协作传输(CoMP ) 小区协作集的装置, 包括 CoMP 终端列表生成模块、 选择模块, 以及 CoMP小区协作集构建模块, 其中: 所述 CoMP终端列表生成模块设置为: 确定待进行 CoMP操作的终端, 生成 CoMP终端列表;
所述选择模块设置为: 从所述 CoMP终端列表中选择出第一终端; 所述 CoMP小区协作集构建模块设置为: 在利用定位技术获得在所述第 一终端周围预设范围内的相邻终端的信息时, 选取相邻终端所属基站组成所 述第一终端的第一 CoMP 'J、区协作集, 所述第一终端以及待进行 CoMP操作 的相邻终端共用所述第一 CoMP小区协作集。
11、 如权利要求 10所述的装置, 其中:
所述 CoMP终端列表生成模块是设置为釆用以下方式确定待进行 CoMP 操作的终端, 生成 CoMP终端列表: 根据服务质量参数从预设的网络区域中 选择需要进行 CoMP操作的终端, 按照服务质量参数对所述需要进行 CoMP 操作的终端进行排序, 将服务质量最差的终端排在最前面, 生成 CoMP终端 列表;
所述选择模块是设置为釆用以下方式从所述 CoMP终端列表中选择出第 一终端: 优先选择服务质量最差的终端。
12、 如权利要求 10或 11所述的装置, 其中:
所述 CoMP小区协作集构建模块是设置为釆用以下方式在利用定位技术 获得在所述第一终端周围预设范围内的相邻终端的信息时, 选取相邻终端所 属基站组成所选择终端的第一 CoMP小区协作集:
利用定位技术获得所述第一终端的位置信息, 判断在所述第一终端周围 预设范围内是否有相邻终端, 如果有, 则利用定位技术获得在所述第一终端 周围预设范围内的相邻终端的信息, 选取相邻终端所属基站组成所述第一终 端的第一 CoMP 'J、区协作集;
所述 CoMP小区协作集构建模块还设置为: 在判断所述第一终端周围预 设范围内没有相邻终端时, 利用定位技术获得在所述第一终端周围预设范围 内的一个或多个基站的信息, 选取所述第一终端周围预设范围内的一个或多 个基站组成所述第一终端的第二 CoMP小区协作集。
13、 如权利要求 12所述的装置, 其中:
所述 CoMP小区协作集构建模块是设置为釆用以下方式选取相邻终端所 属基站组成所述第一终端的第一 CoMP小区协作集: 选取所有相邻终端所属 基站中负荷率小于预设第一门限的基站组成所述第一 CoMP小区协作集; 所述 CoMP小区协作集构建模块是设置为釆用以下方式选取所述第一终 端周围预设范围内的一个或多个基站组成该所选择终端的第二 CoMP小区协 作集: 选取所述第一终端周围预设范围内的所有基站中负荷率小于预设第二 门限的基站组成所述第二 CoMP小区协作集。
14、 如权利要求 10所述的装置, 其还包括:
更新模块, 其设置为: 定期对所有进行 CoMP操作的终端的服务质量进 行复查, 以确定是否更新该终端的 CoMP小区协作集。
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US9439176B2 (en) 2014-02-10 2016-09-06 Huawei Technologies, Co., Ltd. System and method for virtual multi-point transceivers
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101754383A (zh) * 2010-02-02 2010-06-23 中国科学院计算技术研究所 CoMP小区簇构建方法
CN101917217A (zh) * 2010-08-20 2010-12-15 中兴通讯股份有限公司 选择协作点的方法和装置
CN101951307A (zh) * 2010-09-24 2011-01-19 西安电子科技大学 在CoMP下的小区协作集的选择方法
WO2011020062A2 (en) * 2009-08-14 2011-02-17 Research In Motion Limited Frame structure and control signaling for downlink coordinated multi-point (comp) transmission

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4989112B2 (ja) * 2006-05-31 2012-08-01 株式会社エヌ・ティ・ティ・ドコモ サーバ装置、移動端末及び測位方式選択方法
CN101217301B (zh) * 2008-01-10 2011-07-20 北京邮电大学 用协同中继节点在异构无线网络中实现协同传输的方法
CN101815331B (zh) * 2009-02-25 2014-11-05 中兴通讯股份有限公司 参与协同传输的协同小区选择方法、服务基站及通信系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011020062A2 (en) * 2009-08-14 2011-02-17 Research In Motion Limited Frame structure and control signaling for downlink coordinated multi-point (comp) transmission
CN101754383A (zh) * 2010-02-02 2010-06-23 中国科学院计算技术研究所 CoMP小区簇构建方法
CN101917217A (zh) * 2010-08-20 2010-12-15 中兴通讯股份有限公司 选择协作点的方法和装置
CN101951307A (zh) * 2010-09-24 2011-01-19 西安电子科技大学 在CoMP下的小区协作集的选择方法

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