Systems and Methods For Reliable Broadcast and Multicast Transmission Over Wireless Local Area Network
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Accused Products
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.
25 Citations
53 Claims
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1-28. -28. (canceled)
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29. A method for broadcasting a data burst, the method comprising:
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providing a first number of frames in the data burst, each frame of the first number of frames being a reliable broadcast/multicast (RBM) frame; providing a second number of frames in the data burst, each frame of the second number of frames being a broadcast/multicast (BM) frame ant being an RBM frame; transmitting the one or more of the RBM frames in the data burst only after performing a collision avoidance process and receiving a collision avoidance response, the collision avoidance process including; transmitting a message to a station for collision avoidance; and receiving the collision avoidance response in response to the message; transmitting each BM frame in the data burst without performing the collision avoidance process. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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40. An access point for broadcasting a data burst, the access point comprising:
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a processor; a memory comprising instructions; the instructions causing the processor to; provide a first number of frames in the data burst, each frame of the first number of frames being a reliable broadcast/multicast (RBM) frame; provide a second number of frames in the data burst, each frame of the second number of frames being a broadcast/multicast (BM) frame ant being an RBM frame; transmit the one or more of the RBM frames in the data burst only after performing a collision avoidance process and receiving a collision avoidance response, the collision avoidance process including; transmitting a message to a station for collision avoidance; and receiving the collision avoidance response in response to the message; transmit each BM frame in the data burst without performing the collision avoidance process. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A method for broadcasting a data burst, the method comprising:
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providing a first number of frames in the data burst, each frame of the first number of frames being a reliable broadcast/multicast (RBM) frame; transmitting each of the RBM frames after a set interval after a target beacon transmission time (TBTT), wherein the set interval is equal to an RBM transmit opportunity (TXOP) start interval plus a non-negative multiple of an RMB TXOP service interval. - View Dependent Claims (51)
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52. An access point for broadcasting a data burst, the access point comprising:
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a processor; a memory comprising instructions; the instructions causing the processor to; provide a first number of frames in the data burst, each frame of the first number of frames being a reliable broadcast/multicast (RBM) frame; transmit each of the RBM frames after a set interval after a target beacon transmission time (TBTT), wherein the set interval is equal to an RBM transmit opportunity (TXOP) start interval plus a non-negative multiple of an RMB TXOP service interval. - View Dependent Claims (53)
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Specification