专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08112105B2 Method, apparatus and system for estimating channels 有权
标题翻译：估计渠道的方法，装置和系统
公开(公告)号：US08112105B2
公开(公告)日：2012-02-07
申请号：US13229222
申请日：2011-09-09
申请人： Lei Wan , Xingqin Cheng , Mingyu Zhou , Yajun Zhao
发明人： Lei Wan , Xingqin Cheng , Mingyu Zhou , Yajun Zhao
IPC分类号： H04Q7/20
CPC分类号： H04W72/044 , H04J11/0023 , H04L5/0007 , H04L5/0035 , H04L5/0048 , H04L25/0204 , H04L25/0224 , H04W72/0433
摘要： A method, an apparatus and a system for estimating channels are disclosed. A method for estimating channels includes: receiving downlink signals inclusive of reference signals from two or more Access Points (APs), where the relative frequency shift between reference signals sent by different APs is zero; and performing channel estimation according to the reference signals. Another method for estimating channels includes: receiving downlink signals inclusive of reference signals from two or more APs, where for a first AP and a second AP among the two or more APs, a specific time-frequency lattice in the downlink signals sent by the first AP does not include data signal, and the specific time-frequency lattice corresponds to a time-frequency lattice utilized by the second AP to send a reference signal; and performing channel estimation according to the reference signals. The technical solution disclosed herein eliminates the interference between the reference signal and the data signal, enables the UE to estimate the channel value between the UE and the cooperative APs accurately, and improves the UE performance.
摘要翻译：公开了一种用于估计信道的方法，装置和系统。用于估计信道的方法包括：从两个或多个接入点（AP）接收包括参考信号的下行链路信号，其中由不同AP发送的参考信号之间的相对频移为零; 并根据参考信号进行信道估计。用于估计信道的另一方法包括：从两个或多个AP接收包括参考信号的下行链路信号，其中对于两个或更多个AP中的第一AP和第二AP，下行链路信号中的特定时间 - 频率格点由第一 AP不包括数据信号，并且特定时间频率格对应于由第二AP利用来发送参考信号的时间 - 频率格点; 并根据参考信号进行信道估计。本文公开的技术方案消除了参考信号与数据信号之间的干扰，使UE能够准确地估计UE与协作AP之间的信道值，提高UE的性能。

IPRDB

热门服务

关于我们

友情链接

联系方式