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1. 发明申请

US20140369243A1 Frequency Synchronization Method for Nodes in a Downlink Coordinated Multiple Point Transmission Scenario 有权
标题翻译：下行链路协调多点传输场景中节点的频率同步方法
公开(公告)号：US20140369243A1
公开(公告)日：2014-12-18
申请号：US14372680
申请日：2012-07-16
申请人： Zhiheng Guo , Shachua Li , Jinhua Liu , Zhan Zhang
发明人： Zhiheng Guo , Shachua Li , Jinhua Liu , Zhan Zhang
IPC分类号： H04W56/00 , H04J3/06 , H04J1/06 , H04L5/00
CPC分类号： H04W56/0015 , H04J1/06 , H04J3/0617 , H04L5/0035 , H04W56/0035
摘要： Techniques are disclosed for synchronizing frequency among a cluster of coordinated transmission points cooperating in a coherent joint transmission. In some embodiments, one transmission point is set (510) as a reference transmission point for a group of coordinated transmission points. Each of one or more other transmission points in the group receives (530) a specified downlink reference signal from the reference transmission point, measures (540) its frequency offset relative to the reference point, and compensates (550) the frequency offset in baseband processing or by a radio adjustment. Which transmission point acts as the reference transmission point is statically defined, in some embodiments, or dynamically configured, in others. Likewise, which time-frequency resources are used for the reference signal may be statically defined or dynamically configured. In some embodiments, information identifying the reference transmission point and/or specifying the radio resource locations and durations of the reference signal is distributed to the synchronizing transmission points.
摘要翻译：公开了用于在协调传输点协作的一组协调传输点中使频率同步的技术。在一些实施例中，将一个传输点设置为（510）作为一组协调传输点的参考传输点。组中的一个或多个其他传输点中的每一个从参考传输点接收（530）指定的下行链路参考信号，测量（540）相对于参考点的频率偏移，并补偿（550）基带处理中的频率偏移或通过无线电调整。作为参考传送点的哪个传输点在一些实施例中被静态地定义，或者在另一些实施例中被动态配置。同样地，用于参考信号的哪些时间频率资源可以被静态地定义或动态配置。在一些实施例中，识别参考传输点和/或指定参考信号的无线电资源位置和持续时间的信息被分配给同步传输点。

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