Packet shaping for mixed rate 802.11 wireless networks
AssigneeAT&T Corp.
InventorsLeonard Joseph Cimini, Zoran Kostic, Kin K. Leung, Hujun Yin
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Abstract
A method of shaping data packet transmissions by nodes in a wireless network is presented. Each node sets a maximum limit for MAC service data unit size based on data rate so that maximum transmission times for data packet transmissions by all of the nodes are approximately the same.
Claims8
In a wireless network of nodes, a method of shaping data packets for transmission by a node comprises:
- partitioning MSDUs into fragments based on a fragmentation threshold;
- controlling transmission of the fragments so that maximum transmission time for data packet transmission by each of the nodes is approximately the same;
- and
- transmitting packets from the nodes in accordance with the controlling of transmission;
- wherein the step of controlling transmission comprises controlling standard successful transmissions of the fragments so that the fragments are transmitted separately instead of sequentially.
In a wireless network of nodes, an apparatus for use in a node to shape data packets for transmission comprising:
- means for partitioning MSDUs into fragments based on a fragmentation threshold;
- a controller to control at least standard successful transmissions of the fragments so that maximum transmission time for standard successful transmissions of data packets by each of the nodes is approximately the same;
- and
- an RF transceiver for transmitting packets from the nodes in accordance with the controller;
- wherein the controller operates to control the standard successful transmissions of the fragments so that the fragments are transmitted separately instead of sequentially.
In a wireless network of nodes, a method of shaping data packets for transmission by a node comprises:
- partitioning MSDUs into fragments based on a fragmentation threshold;
- controlling transmission of the fragments so that maximum transmission time for data packet transmission by each of the nodes is approximately the same;
- and
- transmitting packets from the nodes in accordance with the controlling of transmission;
- wherein the step of controlling transmission comprises controlling standard successful transmissions of the fragments so that only one fragment is transmitted for each channel contention.
Dependencies are inferred from the claim text.