发明授权
- 专利标题: Synchronization to a base station and code acquisition within a spread spectrum communication system
- 专利标题(中): 与基站同步和扩频通信系统中的码采集
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申请号: US921135申请日: 1997-08-29
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公开(公告)号: US5930366A公开(公告)日: 1999-07-27
- 发明人: Karim Jamal , Riaz Esmailzadeh , Yi-Pin Eric Wang
- 申请人: Karim Jamal , Riaz Esmailzadeh , Yi-Pin Eric Wang
- 申请人地址: SEX Stockholm
- 专利权人: Telefonaktiebolaget L M Ericsson
- 当前专利权人: Telefonaktiebolaget L M Ericsson
- 当前专利权人地址: SEX Stockholm
- 主分类号: H04B1/7073
- IPC分类号: H04B1/7073 ; H04B1/7075 ; H04B1/7083 ; H04B7/26 ; H04Q7/38 ; H04L9/00
摘要:
Each transmission frame within a spread spectrum communications system relating to synchronization code transmission is divided into a plurality of slots. Each of the slots includes a primary (pilot) code c.sub.p and a secondary (combined) code c.sub.s/lci that includes information identifying or indicative of both a frame timing and a scrambling code for synchronization. This information concerning frame timing and scrambling code may be encoded in the combined code c.sub.s/lci itself, as well as in the modulation values of the sequences of plural combined codes within a frame. Alternatively, the information is encoded in the sequence of plural combined codes c.sub.s/lci transmitted in each frame, as well as in the modulated values of the sequences of plural combined codes within a frame. As yet another alternative, the information is encoded in the timing of the combined code c.sub.s/lci transmission within each slot of the frame relative to its associated primary code c.sub.p.
公开/授权文献
- US4787569A Webbing retractor 公开/授权日:1988-11-29
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