Contention-based orthogonal frequency division multiple access (OFDMA) communication
First Claim
1. A method for communicating in a wireless communication network, the method comprising:
- receiving, at a communication device, a trigger frame configured to;
trigger a contention-based uplink orthogonal frequency multiple access (OFDMA) transmission by multiple communication devices, wherein the trigger frame indicates that multiple communication devices can contend for a contiguous band of OFDM tones as part of the contention-based uplink OFDMA transmission, andindicate a length of the contention-based uplink OFDMA transmission,wherein the trigger frame includes power control information that indicates i) a transmission power of the trigger frame and ii) a target received power for the contention-based uplink OFDMA transmission;
determining, at the communication device, a transmission power level using the power control information indicating the transmission power of the trigger frame and the target received power for the contention-based uplink OFDMA transmission;
responsive to receiving the trigger frame, generating, at the communication device, a data unit having the length indicated by the trigger frame; and
responsive to receiving the trigger frame, transmitting, with the communication device, the generated data unit at the determined transmission power level as part of the contention-based uplink OFDMA transmission via the contiguous band of OFDM tones.
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Accused Products
Abstract
A first communication device generates a trigger frame to trigger a contention-based uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices. The trigger frame may be configured to indicate a predetermined length of the contention-based uplink OFDMA transmission, where the predetermined length corresponds to contention-based uplink OFDMA transmissions. The first communication device transmits the trigger frame to the multiple second communication devices, receives the contention-based uplink OFDMA transmission. The contention-based uplink OFDMA transmission may be of the predetermined length.
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Citations
20 Claims
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1. A method for communicating in a wireless communication network, the method comprising:
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receiving, at a communication device, a trigger frame configured to; trigger a contention-based uplink orthogonal frequency multiple access (OFDMA) transmission by multiple communication devices, wherein the trigger frame indicates that multiple communication devices can contend for a contiguous band of OFDM tones as part of the contention-based uplink OFDMA transmission, and indicate a length of the contention-based uplink OFDMA transmission, wherein the trigger frame includes power control information that indicates i) a transmission power of the trigger frame and ii) a target received power for the contention-based uplink OFDMA transmission; determining, at the communication device, a transmission power level using the power control information indicating the transmission power of the trigger frame and the target received power for the contention-based uplink OFDMA transmission; responsive to receiving the trigger frame, generating, at the communication device, a data unit having the length indicated by the trigger frame; and responsive to receiving the trigger frame, transmitting, with the communication device, the generated data unit at the determined transmission power level as part of the contention-based uplink OFDMA transmission via the contiguous band of OFDM tones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus, comprising:
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a network interface device associated with a communication device, the network interface device having one or more integrated circuits configured to; receive a trigger frame configured to; trigger a contention-based uplink orthogonal frequency multiple access (OFDMA) transmission by multiple communication devices, wherein the trigger frame indicates that multiple communication devices can contend for a contiguous band of OFDM tones as part of the contention-based uplink OFDMA transmission, indicate a length of the contention-based uplink OFDMA transmission, wherein the trigger frame includes power control information that indicates i) a transmission power of the trigger frame and ii) a target received power for the contention-based uplink OFDMA transmission; wherein the one or more integrated circuits are also configured to; determine a transmission power level using the power control information indicating the transmission power of the trigger frame and the target received power for the contention-based uplink OFDMA transmission, generate a data unit having the length indicated by the trigger frame in response to receiving the trigger frame, and transmit the generated data unit at the determined transmission power level as part of the contention-based uplink OFDMA transmission via the contiguous band of OFDM tones, in response to receiving the trigger frame. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification