General packet radio service
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United States of America Patent
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Mar 11, 2003
Grant Date -
N/A
app pub date -
Apr 20, 1998
filing date -
Apr 21, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A method for quickly de-allocating physical channels (PDCH) assigned to packet switched calls in a GPRS supporting GSM digital cellular telephone network. An PDCH de-allocation RLC/MAC control message is broadcast to listening mobile stations from a base station subsystem (BSS) and contains a temporary flow identity (TFI) which is recognised by the listening mobile stations (MS). The mobile stations respond by terminating packet switched data transmissions on the identified PDCHs. The RLC/MAC message also identifies the number of PDCH time slots which can be used before de-allocation must occur.
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