发明申请
US20050271012A1 Soft handoff for reverse link in a wireless communication system with frequency reuse
有权
在具有频率重用的无线通信系统中的反向链路的软切换
- 专利标题: Soft handoff for reverse link in a wireless communication system with frequency reuse
- 专利标题(中): 在具有频率重用的无线通信系统中的反向链路的软切换
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申请号: US10969158申请日: 2004-10-20
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公开(公告)号: US20050271012A1公开(公告)日: 2005-12-08
- 发明人: Avneesh Agrawal , Edward Teague , Tingfang Ji
- 申请人: Avneesh Agrawal , Edward Teague , Tingfang Ji
- 主分类号: H04W36/06
- IPC分类号: H04W36/06 ; H04W36/18 ; H04B1/00 ; H04B15/00 ; H04J3/16 ; H04J3/22 ; H04L12/28 ; H04Q7/00
摘要:
For soft handoff on the reverse link with restrictive reuse, a wireless terminal searches for pilots transmitted by sectors in a wireless system, measures the detected pilots, selects a serving sector (e.g., the strongest received sector), and identifies non-serving sectors that may receive high interference from the terminal. The serving sector assigns the terminal with subband(s) that are usable by the serving sector and unusable by the non-serving sectors. The terminal transmits data symbols on the assigned subbands to the serving and non-serving sectors. These sectors process the reverse link transmission from the terminal and obtain soft-decision symbols, which are estimates of the transmitted data symbols. The soft-decision symbols from co-located sectors may be combined and then decoded to obtain decoded packets. The sectors may also independently decode the soft-decision symbols, and the decoded packets from these sectors may be combined to obtain final decoded packets for the terminal.
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