Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2006-03-09
2009-12-29
Gary, Erika A (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S281000, C370S347000
Reexamination Certificate
active
07639653
ABSTRACT:
A method and apparatus resolves conflicts and ambiguities of GSM standards arising in DTM by monitoring only selected downlink timeslots for uplink status flags (USFs). Downlink timeslots with a packet data channel (PDCH) are monitored for a USF from a lowest numbered time slot, B(0), to a maximum time slot B(MAX) where B(MAX) is equal to the lowest transmission uplink timeslot, B(x), in the corresponding TDMA uplink frame if the second lowest transmission uplink timeslot B(x)+1, is a circuit switched timeslot and where B(MAX) is equal to the second lowest transmission timeslot in the corresponding TDMA frame, B(x)+1, otherwise.
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Gary Erika A
Patel Rupit M.
QUALCOMM Incorporated
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