Invention Grant
- Patent Title: Method and apparatus for robust handoff in wireless communication systems
- Patent Title (中): 无线通信系统中鲁棒切换的方法和装置
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Application No.: US11619550Application Date: 2007-01-03
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Publication No.: US08588777B2Publication Date: 2013-11-19
- Inventor: Matthew Stuart Grob , Roberto Padovani , Paul E. Bender , Gadi Karmi , Robert H. Kimball , Greg M. Hoagland
- Applicant: Matthew Stuart Grob , Roberto Padovani , Paul E. Bender , Gadi Karmi , Robert H. Kimball , Greg M. Hoagland
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Main IPC: H04W36/00
- IPC: H04W36/00

Abstract:
A communication system that allows a soft handoff to be completed, even when the communications link between the active base station and the mobile station deteriorates before the mobile station has received the handoff direction message. The mobile station maintains a list of base stations that the mobile station is in communication with, referred to as an “Active Set”. In addition, the mobile station maintains another list of base stations that are proximate to the base stations in the active set. This list is referred to as the “Neighbor Set”. In accordance with the disclosed method and apparatus, the mobile station places a base station in the active set upon including the base station in a pilot strength measurement message (PSMM). The mobile station monitors transmissions from all of the base stations on the active set to receive a handoff direction message (HDM).
Public/Granted literature
- US20070105584A1 METHOD AND APPARATUS FOR ROBUST HANDOFF IN WIRELESS COMMUNICATION SYSTEMS Public/Granted day:2007-05-10
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