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    • 1. 发明申请
    • METHOD FOR ALLOCATING WIRELESS COMMUNICATION RESOURCES IN DISTRIBUTED ANTENNA SYSTEM
    • 在分布式天线系统中分配无线通信资源的方法
    • WO2007014898A1
    • 2007-02-08
    • PCT/EP2006/064726
    • 2006-07-27
    • SIEMENS AKTIENGESELLSCHAFTCHANG, XinLI, Guang JieLI, Hui
    • CHANG, XinLI, Guang JieLI, Hui
    • H04Q7/30
    • H04W88/085H04W16/30H04W28/16
    • A method for allocating wireless communication resources in a distributed antenna system, in which the reuse factor of the wireless communication resource is further reduced and the utilization efficiency of the wireless communication resources is improved. In a group of service areas joining as a node in the system, the coverage area of each service area is divided into a central region and a boundary region, with each central region forming a central region allocating unit, and the boundary regions of a pair of adjoining service areas forming a boundary region allocating unit; each central region allocating unit is allocated with the same wireless communication resources and the quantity thereof is decided by the ratio of the area size of said central region to the area size of said service area, and also the quantity of all usable wireless communication resources in the system; each boundary region allocating unit is allocated with different wireless communication resources and the quantity thereof is decided by the remaining wireless quantity of wireless communication resources after the quantity of all usable wireless communication resources in the system minus the quantity of the wireless communication resources allocated to the central region allocating unit, and also the number of said boundary region reallocating units; and in a different group of service areas joining at one node, all usable wireless communication resources in said system are reused by the same allocating mode.
    • 一种在分布式天线系统中分配无线通信资源的方法,其中进一步降低了无线通信资源的重用因素,提高了无线通信资源的利用效率。 在作为系统中的节点加入的一组服务区域中,每个服务区域的覆盖区域被分成中心区域和边界区域,每个中心区域形成中心区域分配单元,并且一对边界区域 邻接的服务区域形成边界区域分配单元; 每个中央区域分配单元被分配相同的无线通信资源,其数量由所述中心区域的区域大小与所述服务区域的面积大小的比率决定,并且还包括所有可用无线通信资源的数量 系统; 每个边界区域分配单元被分配有不同的无线通信资源,并且其数量由系统中所有可用的无线通信资源的数量减去分配给该系统的无线通信资源的数量之后的无线通信资源的剩余无线量决定 中央区域分配单元,以及所述边界区域重新分配单元的数量; 并且在一个节点加入的不同的服务区域中,所有系统中的所有可用的无线通信资源都被相同的分配模式重新使用。
    • 2. 发明申请
    • A METHOD FOR ALLOCATING DOWNLINK DATA STREAMS IN A DISTRIBUTED ANTENNA SYSTEM
    • 一种在分布式天线系统中分配下行链路数据流的方法
    • WO2006103283A1
    • 2006-10-05
    • PCT/EP2006/061211
    • 2006-03-31
    • SIEMENS AKTIENGESELLSCHAFTLI, Guang JieCHANG, XinLI, HuiSCHULZ, Egon
    • LI, Guang JieCHANG, XinLI, HuiSCHULZ, Egon
    • H04B7/06H04L1/06
    • H04B7/0613H04L1/0003H04L1/0009H04L1/0618H04L5/0023H04L5/0044H04L5/0048H04W88/085
    • A method for allocating downlink data streams in a distributed antenna system, wherein in the downlink radio signal transmission from remote units to a mobile terminal, the central unit of the service area in which the mobile terminal is located allocates data streams of the radio signal among the remote units within its service area, according to the following steps: firstly, measuring the position in the service area in which the mobile terminal is located; secondly, measuring the correlation of the downlink radio signals transmitted to the mobile terminal from individual antenna units of all the remote units within the service area; lastly, the central unit determining the manner in which the data streams are allocated among the remote units based on the position of the mobile terminal and the measured value of the correlation of the downlink radio signals. The method of the present invention can allocate data streams of a radio signal among remote units in a service area according to the variations in the position of the mobile terminal and radio signal transmission environment, and compared with traditional applications of MIMO radio transmission technology, the method further improves the transmission quality of radio signals and optimizes the performance of distributed antenna systems.
    • 一种用于在分布式天线系统中分配下行链路数据流的方法,其中在从远程单元到移动终端的下行链路无线电信号传输中,移动终端所在的服务区域的中央单元分配无线电信号的数据流 其服务范围内的远程单元,按照以下步骤进行:首先,测量移动终端所在的服务区域中的位置; 其次,测量从服务区域内的所有远程单元的各个天线单元发送到移动终端的下行链路无线电信号的相关性; 最后,中央单元基于移动终端的位置和下行链路无线电信号的相关性的测量值来确定在远程单元之间分配数据流的方式。 本发明的方法可以根据移动终端的位置变化和无线电信号传输环境在服务区域的远程单元之间分配无线信号的数据流,并与MIMO无线传输技术的传统应用进行比较, 方法进一步提高了无线电信号的传输质量,并优化了分布式天线系统的性能。