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    • 54. 发明申请
    • METHOD AND ARRANGEMENT FOR ADAPTING POWER OF REFERENCE SIGNALS
    • 适应参考信号功率的方法和布置
    • WO2011100863A1
    • 2011-08-25
    • PCT/CN2010/001909
    • 2010-11-29
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HU, YangASTELY, DavidJONGREN, GeorgeWANG, Jianfeng
    • HU, YangASTELY, DavidJONGREN, GeorgeWANG, Jianfeng
    • H04B7/26
    • H04B7/0426H04L5/0023H04L5/0048H04W52/325H04W52/42
    • A method and an arrangement (800) in a radio network node (120) for adapting transmission power of resource elements for demodulation reference signals, referred to as "reference elements" are provided. The radio network node (120) is configured for multiple-input multiple-output transmission, referred to as "MIMO transmission", to a user equipment (110). The MIMO transmission comprises at least three layers. Two consecutive subcarriers of a resource block carry at least three reference elements. A first subcarrier of the resource block carries data elements. The radio network node (120) adapts transmission power of said at least three reference elements such that an average transmission power, over said two consecutive subcarriers, of said at least three reference elements is equal to a transmission power, for the first subcarrier, of the data elements for said at least three layers. The radio network node (120) uses the adapted transmission power to transmit, to the user equipment (110), said at least three reference elements.
    • 提供了一种用于调整用于解调参考信号的资源元素的发送功率(称为“参考元素”)的无线电网络节点(120)中的方法和装置(800)。 无线电网络节点(120)被配置用于用户设备(110)的多输入多输出传输(称为“MIMO传输”)。 MIMO传输包括至少三层。 资源块的两个连续子载波携带至少三个参考元素。 资源块的第一子载波携带数据元素。 无线电网络节点(120)适应所述至少三个参考元件的发射功率,使得所述至少三个参考元件的所述两个连续子载波上的平均发射功率等于第一副载波的发射功率 所述至少三层的数据元素。 无线电网络节点(120)使用适配的传输功率向用户设备(110)发送所述至少三个参考元件。
    • 57. 发明申请
    • CHANNEL MANAGEMENT METHOD IN A DISTRIBUTED SPECTRUM COGNITIVE RADIO NETWORK
    • 分布式光谱认证无线电网络中的信道管理方法
    • WO2009072087A1
    • 2009-06-11
    • PCT/IB2008/055126
    • 2008-12-05
    • KONINKLIJKE PHILIPS ELECTRONICS, N.V.CHALLAPALI, Kiran, S.WANG, Jianfeng
    • CHALLAPALI, Kiran, S.WANG, Jianfeng
    • H04W28/18
    • H04W72/085H04W16/14H04W36/06
    • A source-assisted channel management method in a distributed spectrum cognitive radio wireless network handling a source of multimedia stream data handles a plurality of communicating devices (1, 2, 3) forming a group, and manages channels with no separate controller that is referenced in applicable IEEE standard. The source makes the reservation on behalf of the device group knows traffic schedule, and determines out-of-band channel scanning, back up channel and channel vacation. The method uses a flexible MAC superframe structure and proactively scans for back-up channels which could be used in lieu of the current channel, identifies devices in the group which should vacate a current channel when any one device from the group of communicating devices (1, 2, 3) detects an incumbent, and make a determination as to when the wireless network should vacate the current channel based on said traffic schedule. The method ensures that no interference is caused to existing users and maintains QoS.
    • 处理多媒体流数据源的分布式频谱认知无线电无线网络中的源辅助信道管理方法处理形成组的多个通信设备(1,2,3),并且管理没有单独控制器的信道, 适用的IEEE标准。 源代表设备组的预约知道流量调度,并确定带外频道扫描,备份频道和频道休假。 该方法使用灵活的MAC超帧结构,并主动扫描可用于代替当前信道的备用信道,识别当来自通信设备组(1)的任何一个设备时,应当腾出当前信道的组中的设备 ,2,3)检测在线人员,并且基于所述业务调度确定何时无线网络应该腾出当前频道。 该方法确保对现有用户不产生干扰,维护QoS。