发明授权
US07046719B2 Soft handoff between cellular systems employing different encoding rates
有权
使用不同编码率的蜂窝系统之间的软切换
- 专利标题: Soft handoff between cellular systems employing different encoding rates
- 专利标题(中): 使用不同编码率的蜂窝系统之间的软切换
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申请号: US09801891申请日: 2001-03-08
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公开(公告)号: US07046719B2公开(公告)日: 2006-05-16
- 发明人: Jiangnan Chen , Ron Rotstein , Yuda Luz , Louay A Jalloul
- 申请人: Jiangnan Chen , Ron Rotstein , Yuda Luz , Louay A Jalloul
- 申请人地址: US IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: US IL Schaumburg
- 代理商 Simon B. Anolick
- 主分类号: H04B15/00
- IPC分类号: H04B15/00 ; H04K1/00 ; H04L27/30
摘要:
A receiver (200) is provided receiving signals from differing base stations (BTSA and BTSB). The signal from BTSA is encoded using a first rate convolutional encoder while the signal transmitted from BTSB is encoded using a second rate convolutional encoder. Since the multiple base station links may result in a different number of symbols being received for each bit transmitted, the symbols received for each link cannot be simply combined. Therefore, in the preferred embodiment of the present invention, the resulting symbols are passed to multiple branch metric circuits (210–211), where branch metrics (μi) for the symbols are obtained. After the ith branch metrics for the base stations are computed, the branch metrics for each base station are passed to a combiner (212) where they are combined.
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