Method, device, microprocessor and microprocessor memory for instantaneous preemption of packet data
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 31, 1998
Grant Date -
N/A
app pub date -
Jul 28, 1995
filing date -
Jul 28, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a method (500), device (400), microprocessor (500) and microprocessor memory (400, 500, 600) for instantaneous preemption of packet-switched data from a user that has won contention for a channel and for transmitting on a time slot, by higher priority traffic type data or voice in a TDMA communication system having a central access manager and a plurality of subscriber units. Before transmitting a packet on an uplink channel, the subscriber unit first selects a time slot and contends for channel access on the time slot. Upon gaining access to the uplink channel, the subscriber unit begins transmitting segments of a data packet on the selected time slot, suspending transmission when a higher priority user gains access to the time slot and, where decoding fails, suspending transmission for the time slot. The subscriber unit continues to transmit on the selected time slot until the packet ends.
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