Method and apparatus for real time scheduling of traffic in wireless networks
First Claim
1. A method for scheduling of traffic in wireless networks, whereas said network comprises real-time stations intending to send real-time traffic and best-effort stations sending best effort traffic, said method comprising:
- transmitting by a primary real-time station periodically a real-time access marker to thereby define rounds;
assigning a sequence number to each station in said network which intends to send real-time traffic;
based on the sequence number assigned to a station, defining a fixed backoff time at which a packet from this station is transmitted after the start of a round to thereby establish a sequence in which the real-time packets are sent by the different realtime stations, said method being characterized by further comprising;
overhearing for a predetermined period of time the traffic by a station which intends to send real-time traffic;
if from said overhearing said station concludes that there is already a primary station transmitting real-time access markers, assuming by said station a sequence number based on the number of real-time stations which already are sending real-time traffic.
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Abstract
A method for scheduling of traffic in wireless networks, whereas said network comprises real-time stations intending to send real-time traffic and best-effort stations sending best effort traffic, said method comprising:
transmitting by a primary real-time station periodically a real-time access marker to thereby define rounds;
assigning a sequence number to each station in said network which intends to send real-time traffic;
based on the sequence number assigned to a station, defining a fixed backoff time at which a packet from this station is transmitted after the start of a round to thereby establish a sequence in which the real-time packets are sent by the different realtime stations, said method being characterized by further comprising:
overhearing for a predetermined period of time the traffic by a station which intends to send real-time traffic;
if from said overhearing said station concludes that there is already a primary station transmitting real-time access markers, assuming by said station a sequence number based on the number of real-time stations which already are sending real-time traffic.
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Citations
16 Claims
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1. A method for scheduling of traffic in wireless networks, whereas said network comprises real-time stations intending to send real-time traffic and best-effort stations sending best effort traffic, said method comprising:
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transmitting by a primary real-time station periodically a real-time access marker to thereby define rounds; assigning a sequence number to each station in said network which intends to send real-time traffic; based on the sequence number assigned to a station, defining a fixed backoff time at which a packet from this station is transmitted after the start of a round to thereby establish a sequence in which the real-time packets are sent by the different realtime stations, said method being characterized by further comprising; overhearing for a predetermined period of time the traffic by a station which intends to send real-time traffic; if from said overhearing said station concludes that there is already a primary station transmitting real-time access markers, assuming by said station a sequence number based on the number of real-time stations which already are sending real-time traffic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16)
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13. An apparatus for scheduling of traffic in wireless networks, whereas said network comprises real-time stations intending to send real-time traffic and best-effort stations sending best effort traffic, said apparatus comprising:
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a module for transmitting by a primary real-time station periodically a real-time access marker to thereby define rounds; a module for assigning a sequence number to each station in said network which intends to send real-time traffic; a module for based on the sequence number assigned to a station, defining a fixed backoff time at which a packet from this station is transmitted after the start of a round to thereby establish a sequence in which the real-time packets are sent by the different realtime stations, said apparatus further comprising; a module for overhearing for a predetermined period of time the traffic by a station which intends to send real-time traffic; a module for assuming by said station a sequence number based on the number of real-time stations which already are sending real-time traffic if from said overhearing said station concludes that there is already a primary station transmitting real-time access markers.
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14. A realtime-station for scheduling of traffic in wireless networks, whereas said network comprises real-time stations intending to send real-time traffic and best-effort stations sending best effort traffic, said realtime-station comprising:
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a module for receiving a real-time access marker sent periodically by a primary real-time station to thereby define rounds; a module for assigning a sequence number to said realtime-station in said network which intends to send real-time traffic; a module for based on the sequence number assigned to said station, defining a fixed backoff time at which a packet from this station is transmitted after the start of a round to thereby establish a sequence in which the real-time packets are sent by the different realtime stations, said realtime-station further comprising; a module for overhearing for a predetermined period of time the traffic by a station which intends to send real-time traffic; a module for assuming by said realtime-station a sequence number based on the number of real-time stations which already are sending real-time traffic if from said overhearing said station concludes that there is already a primary station transmitting real-time access markers. - View Dependent Claims (15)
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Specification