H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/24 (2006.01) H04B 7/212 (2006.01) H04L 12/413 (2006.01) H04L 12/56 (2006.01)
Patent
CA 2354631
An access contention scheme having both multi-level priorities and a contention-free access indicator 130 for use by a station 12 in a network of stations 10. A station 12 having a frame to transmit determines from a detected contention control indicator 130 if it is permitted to contend for access to a transmission medium14 during a contention period 290. The station 12 determines if the contention control indicator 130 indicates a contention-free access and, if the contention control indicator 130 indicates a contention- free access, the station 12 determines if a channel access priority level associated with the frame to be transmitted is higher than a channel access priority level 144 associated with a last transmitted frame. If so, the station 12 detects whether any station in the network of stations intends to contend for access to the medium 14 at a channel access priority level that is higher than the channel access priority level associated with the frame to be transmitted. If so, the station 12 defers contention for access.
Earnshaw William E.
Kostoff Stanley J. II
Markwalter Brian E.
Patella James Philip
Yonge Lawrence W. III
Intellon Corporation
Qualcomm Atheros Inc.
Smart & Biggar
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