Mobile communication device initiated hand-off based on air...

Details Mobile communication device initiated hand-off based on air... Mobile communication device initiated hand-off based on air...

2008-08-19

2011-11-29

Cordero, Marivelisse Santiago (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S553100, C455S552100, C455S456600, C370S331000, C370S338000

Reexamination Certificate

active

08068838

ABSTRACT:
A mobile communication device wirelessly transfers user communications to a first wireless base station. The mobile communication device determines a first metric based on a load indicator for the first base station. The mobile communication device identifies a second wireless base station and determines a second metric based on a load indicator for the second base station. If the second metric is superior to the first metric, the mobile communication device determines if the second base station has sufficient performance characteristics for communication with the device. If the performance is sufficient, the mobile communication device initiates a hand-off from the first base station to the second base station. The mobile communication device may use additional factors to determine the first and second metrics.

REFERENCES:
patent: 7295119 (2007-11-01), Rappaport et al.
patent: 2002/0077115 (2002-06-01), Ruutu et al.
patent: 2007/0072614 (2007-03-01), Forsberg
patent: 2007/0177510 (2007-08-01), Natarajan et al.
patent: 2007/0189216 (2007-08-01), Wang et al.
patent: 2007/0258407 (2007-11-01), Li et al.
patent: 2007/0291717 (2007-12-01), Williams et al.
patent: 2008/0085712 (2008-04-01), Han

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