Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2008-05-20
2008-05-20
Eng, George (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S436000, C455S442000, C455S435100, C455S432100, C370S331000, C370S330000, C370S332000
Reexamination Certificate
active
11283676
ABSTRACT:
A mobile communications device initiates a handoff from its current base station (BS) sector network attachment point to a new BS sector. The mobile sends a handoff request over its current wireless link to the current BS sector, which forwards the request to the new BS sector, e.g., via a network link. The new BS sector processes the request assigning dedicated resources, e.g., an identifier and dedicated uplink segments information identifying the allocated resources is conveyed from the new BS sector via the current BS sector to the mobile. The mobile determines the time of the allocated dedicated segments based upon a received beacon signal from the new BS sector with known timing relationships to dedicated segments. The mobile breaks the original wireless link just prior to the time of the first assigned dedicated segment. The mobile communicates information on the assigned dedicated segments to perform registration operations, e.g., timing synchronization and power control, establishing a new wireless link.
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Lane Frank A.
Laroia Rajiv
Li Junyi
Eng George
Katbab Abdollah
Phan Huy
Qualcomm Incorporated
Rouse Thoms R.
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