Systems and Methods For Reliable Broadcast and Multicast Transmission Over Wireless Local Area Network
First Claim
Patent Images
1. A method for broadcasting a reliable broadcast/multicast (RBM) burst comprising:
- marking each frame in the RBM burst to identify each frame as reliable;
transmitting a message to a station for collision avoidance;
receiving the response from the station if available; and
transmitting each frame in the RBM burst separated by a short interframe space (SIFS) if a response was received.
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Abstract
Broadcast and multicast (BM) systems have not been reliable in the wireless local area networks. Higher bandwidth and more reliable BM transmissions are necessitated by video and audio applications. A class of BM reliable frames is transmitted at a higher rate. The access point performs some rudimentary collision avoidance to enhance reliability, and individual stations are given the ability to send feedback to the access point regarding the quality of the transmission.
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Citations
28 Claims
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1. A method for broadcasting a reliable broadcast/multicast (RBM) burst comprising:
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marking each frame in the RBM burst to identify each frame as reliable; transmitting a message to a station for collision avoidance; receiving the response from the station if available; and transmitting each frame in the RBM burst separated by a short interframe space (SIFS) if a response was received. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An access point configured for transmitting an RBM burst comprising a first frame, said access point comprising:
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a processor; a wireless network interface device; and a memory comprising instructions; said instructions causing the processor to mark each frame in the RBM burst to identify each frame as reliable; to cause the wireless network interface device to transmit a message to a station for collision avoidance; to cause the wireless network interface device to receive through a response from the station if available; and to cause the wireless network interface device to transmit each frame in the reliable broadcast or multicast burst separated by a SIFS if a response was received. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An access point configured for transmitting an RBM burst comprising:
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means for marking each frame in the RBM burst to identify each frame as reliable; means for avoiding collisions; and means for transmitting each frame in the RBM burst separated. - View Dependent Claims (27, 28)
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Specification