Using the ECN Mechanism to Signal Congestion Directly to the Base Station
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Abstract
Techniques for a mobile station to signal a request for a reduction in data transmission rate to a base station are disclosed. An example method for facilitating flow control in a wireless communication system includes monitoring resource use associated with a mobile station and, based upon the resource use, setting a congestion indicator in a header of at least one uplink traffic data packet. The uplink traffic data packet is then sent to a wireless base station, which detects the congestion indicator. In some embodiments, ECN bits in an IP header of the uplink traffic data packet are set. In other embodiments, ECN bits in an IP header of a downlink traffic data packet are set, to trigger the generation of a TCP header that indicates congestion in subsequent uplink packets.
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Citations
54 Claims
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1-27. -27. (canceled)
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28. A method in a mobile station for facilitating flow control in a wireless communication system, the method comprising:
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monitoring resource use associated with the mobile station; based upon the resource use associated with the mobile station, setting a congestion indicator in a header of at least one uplink traffic data packet; and sending the at least one uplink traffic data packet to a wireless base station. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method for flow control in a wireless communication system, the method comprising:
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receiving, at a wireless base station, an uplink traffic data packet sent by a mobile station; evaluating, at the base station, one or more headers included in the uplink traffic data packet to determine whether the mobile station is indicating congestion; and based on said evaluating, adjusting a subsequent rate for transmissions to the mobile station, from the mobile station, or both. - View Dependent Claims (39, 40, 41, 42)
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43. A mobile station comprising one or more processing circuits configured to:
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monitor resource use associated with a mobile station; based upon the resource use associated with the mobile station, set a congestion indicator in a header of at least one uplink traffic data packet; and send the at least one uplink traffic data packet to a wireless base station. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50)
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51. A base station comprising one or more processing circuits configured to:
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receive an uplink traffic data packet sent by a mobile station; evaluate one or more headers included in the uplink traffic data packet to determine whether the mobile station is indicating congestion; and adjust, based on the evaluation, a subsequent rate for transmissions to the mobile station, from the mobile station, or both. - View Dependent Claims (52, 53, 54)
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Specification