Invention Grant
- Patent Title: Enhanced mobility support for wireless communication
- Patent Title (中): 增强无线通信的移动性支持
-
Application No.: US11739674Application Date: 2007-04-24
-
Publication No.: US09247515B2Publication Date: 2016-01-26
- Inventor: Dino Flore , Durga Prasad Malladi , Etienne Chaponniere , Francesco Grilli
- Applicant: Dino Flore , Durga Prasad Malladi , Etienne Chaponniere , Francesco Grilli
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Steven A. Raney
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W56/00

Abstract:
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.
Public/Granted literature
- US20080070578A1 ENHANCED MOBILITY SUPPORT FOR WIRELESS COMMUNICATION Public/Granted day:2008-03-20
Information query