发明授权
US07072317B2 Method and apparatus for providing soft hand-off in IP-centric wireless CDMA networks
有权
在以IP为中心的无线CDMA网络中提供软切换的方法和装置
- 专利标题: Method and apparatus for providing soft hand-off in IP-centric wireless CDMA networks
- 专利标题(中): 在以IP为中心的无线CDMA网络中提供软切换的方法和装置
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申请号: US10103919申请日: 2002-03-22
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公开(公告)号: US07072317B2公开(公告)日: 2006-07-04
- 发明人: Faramak Vakil , David Famolari , Shinichi Baba , Tadahiko Maeda
- 申请人: Faramak Vakil , David Famolari , Shinichi Baba , Tadahiko Maeda
- 申请人地址: US NJ Piscataway US NJ Piscataway
- 专利权人: Telcordia Technologies, Inc.,Toshiba America Research, Inc.
- 当前专利权人: Telcordia Technologies, Inc.,Toshiba America Research, Inc.
- 当前专利权人地址: US NJ Piscataway US NJ Piscataway
- 代理商 Joseph Giordano; James W. Falk
- 主分类号: H04Q7/00
- IPC分类号: H04Q7/00
摘要:
A Virtual Soft-Hand-off method for wireless IP-centric CDMA networks whose routers, hosts, and mobile stations have small group multicast (SGM) capability comprises setting up an explicit synchronous multicast session among a small group of participants with dynamic group membership. Packets transmitted over the multicast session are time stamped to help maintain synchronization, and the receivers recover multiple packet flows from the multiple received signals concurrently and combine them to create a single packet flow at higher layers.
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