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1. 发明授权

US07043273B2 Diversity branch delay alignment in radio base station 失效
标题翻译：无线电基站中的分集支路延迟对准
公开(公告)号：US07043273B2
公开(公告)日：2006-05-09
申请号：US10045024
申请日：2002-01-15
申请人： Lawrence Sarresh , Ning He , Thomas Leif Östman
发明人： Lawrence Sarresh , Ning He , Thomas Leif Östman
IPC分类号： H04Q7/20
CPC分类号： H04B7/084 , H04B7/0626 , H04B7/0667 , H04B7/0678 , H04B17/10 , H04B17/20 , H04B17/21
摘要： A base station (28) included in a radio access network of a telecommunications system has two diversity antennas (44A, 44B) for a cell/carrier utilized in a sector served by the base station which are respectively involved in transmission of two branches of a radio link signal of the cell/carrier between the base station and a user equipment unit (30). Two branches of signal processing hardware respectively process the two branches of the radio link signal to yield two respective processed branches of the radio link signal. A rake receiver (62, 262) measures the delay difference between the two processed branches of the radio link signal, and uses the measured delay difference for various purposes. For example, some embodiments of the invention use the delay difference between the two branches as measured by the rake receiver to compensate for a delay difference which exists between the two processed branches of the radio link signal. When measuring the delay difference between the two branches of an uplink radio signal, a rake receiver (62) at the radio base station is employed. On the other hand, when measuring the delay difference between the two branches of a downlink radio signal, a rake receiver (262) at test user equipment unit (30T) is employed.
摘要翻译：包括在电信系统的无线电接入网络中的基站（28）具有用于由基站服务的扇区中使用的小区/载波的两个分集天线（44A，44B），其分别涉及两个分支的传输在基站和用户设备单元（30）之间的小区/载波的无线电链路信号。信号处理硬件的两个分支分别处理无线电链路信号的两个分支，以产生无线电链路信号的两个相应的处理分支。耙式接收器（62,262）测量无线电链路信号的两个处理分支之间的延迟差，并且为了各种目的使用所测量的延迟差。例如，本发明的一些实施例使用由耙式接收机测量的两个分支之间的延迟差来补偿存在于无线电链路信号的两个经处理的分支之间的延迟差异。当测量上行链路无线电信号的两个分支之间的延迟差时，采用无线电基站处的瑞克接收机（62）。另一方面，当测量下行链路无线电信号的两个分支之间的延迟差时，采用在测试用户设备单元（30T）处的瑞克接收机（262）。

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