发明授权
- 专利标题: Enhanced mobility support for wireless communication
- 专利标题(中): 增强无线通信的移动性支持
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申请号: US11739674申请日: 2007-04-24
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公开(公告)号: US09247515B2公开(公告)日: 2016-01-26
- 发明人: Dino Flore , Durga Prasad Malladi , Etienne Chaponniere , Francesco Grilli
- 申请人: Dino Flore , Durga Prasad Malladi , Etienne Chaponniere , Francesco Grilli
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 Steven A. Raney
- 主分类号: H04W36/00
- IPC分类号: H04W36/00 ; H04W56/00
摘要:
Techniques for quickly and efficiently performing handover are described. A user equipment (UE) may maintain a link with a serving cell and may communicate with this cell via the established link. The UE may have a candidate set of non-serving cells that are candidates for handover. The UE may maintain uplink synchronization with one or more non-serving cells in the candidate set, without having to maintain links with any of the non-serving cells. The UE may update uplink synchronization with the non-serving cells via an access procedure, e.g., send access probes to the non-serving cells and receive timing adjustments from these cells. One non-serving cell with which the UE has maintained uplink synchronization may be selected as a target cell for handover. The UE may then perform handover from the serving cell to the target cell, without performing uplink synchronization during the handover, which may improve handover latency and success rate.
公开/授权文献
- US20080070578A1 ENHANCED MOBILITY SUPPORT FOR WIRELESS COMMUNICATION 公开/授权日:2008-03-20
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