Contention-based orthogonal frequency division multiple access (OFDMA) communication
First Claim
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1. A method for communicating in a wireless communication network, the method comprising:
- generating, at a first communication device, a trigger frame to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission,wherein the trigger frame is configured to indicate that multiple second communication devices can contend for a contiguous band of OFDM tones as part of the uplink OFDMA transmission,wherein the trigger frame includes power control information that includes i) a transmission power value that indicates a transmission power used by the first communication device to transmit the trigger frame and ii) a target received power value that indicates a target received power, at the first communication device, for the uplink OFDMA transmission, andwherein the power control information, including i) the transmission power value, and ii) the target received power value, is for use by communication devices participating in the uplink OFDMA transmission to determine respective transmission power levels for the uplink OFDMA transmission;
transmitting, with the first communication device, the trigger frame; and
receiving, at the first communication device, the uplink OFDMA transmission in response to the trigger frame.
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Abstract
A communication device receives a trigger frame that is configured to: trigger a contention-based uplink orthogonal frequency multiple access (OFDMA) transmission by multiple communication devices, and indicate a predetermined length of the contention-based uplink OFDMA transmission, wherein the predetermined length corresponds to contention-based uplink OFDMA transmissions. Responsive to receiving the trigger frame, the communication device generates a data unit having the predetermined length, and responsive to receiving the trigger frame, transmits the data unit as part of a contention-based uplink OFDMA transmission.
24 Citations
16 Claims
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1. A method for communicating in a wireless communication network, the method comprising:
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generating, at a first communication device, a trigger frame to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission, wherein the trigger frame is configured to indicate that multiple second communication devices can contend for a contiguous band of OFDM tones as part of the uplink OFDMA transmission, wherein the trigger frame includes power control information that includes i) a transmission power value that indicates a transmission power used by the first communication device to transmit the trigger frame and ii) a target received power value that indicates a target received power, at the first communication device, for the uplink OFDMA transmission, and wherein the power control information, including i) the transmission power value, and ii) the target received power value, is for use by communication devices participating in the uplink OFDMA transmission to determine respective transmission power levels for the uplink OFDMA transmission; transmitting, with the first communication device, the trigger frame; and receiving, at the first communication device, the uplink OFDMA transmission in response to the trigger frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus, comprising:
a network interface device associated with a first communication device, the network interface device having one or more integrated circuits configured to; generate a trigger frame to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission, wherein the trigger frame is configured to indicate that multiple second communication devices can contend for a contiguous band of OFDM tones as part of the uplink OFDMA transmission, wherein the trigger frame includes power control information that includes i) a transmission power value that indicates a transmission power used by the first communication device to transmit the trigger frame and ii) a target received power value that indicates a target received power, at the first communication device, for the uplink OFDMA transmission, and wherein the power control information, including i) the transmission power value, and ii) the target received power value, is for use by communication devices participating in the uplink OFDMA transmission to determine respective transmission power levels for the uplink OFDMA transmission; transmit the trigger frame; and receive the uplink OFDMA transmission. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
Specification