发明授权
- 专利标题: Method for performing a soft handoff
- 专利标题(中): 执行软切换的方法
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申请号: US920779申请日: 1997-08-29
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公开(公告)号: US6097954A公开(公告)日: 2000-08-01
- 发明人: Sarath Kumar , Wen-Yi Kuo , Kiran M. Rege
- 申请人: Sarath Kumar , Wen-Yi Kuo , Kiran M. Rege
- 申请人地址: NJ Murray Hill
- 专利权人: Lucent Technologies, Inc.
- 当前专利权人: Lucent Technologies, Inc.
- 当前专利权人地址: NJ Murray Hill
- 主分类号: H04W36/18
- IPC分类号: H04W36/18 ; H09K1/00
摘要:
The present invention increases the success rate of soft handoffs by enhancing the ability of a mobile-telephone to receive a handoff direction message that identifies the traffic channel being assigned to enable a candidate base station to communicate with the mobile-telephone. Specifically, the aforementioned ability of the mobile-telephone is enhanced by using the candidate base station to transmit the handoff direction message on a communication channel belonging to the candidate base station and being listened to by the mobile-telephone. In situations where signals transmitted from active set base stations have a low signal-to-noise ratio at the mobile-telephone, signals transmitted from the candidate base station may have a higher signal-to-noise ratio at the mobile-telephone. In these situations, the transmission of the HD messages from the candidate base station increases the likelihood that a copy of the handoff direction message will be successfully received by the mobile-telephone, thereby enhancing the success rate of soft handoffs.
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