TRIGGER FRAME FORMAT FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) COMMUNICATION
First Claim
1. A method for communicating in a wireless communication network, the method comprising:
- generating, at an access point, one or more trigger frames to trigger an uplink multi-user (MU) transmission by multiple client stations, wherein each of the one or more trigger frames includes a medium access control (MAC) header portion and a MAC frame body portion, wherein the MAC frame body portion includes (i) a common information field that includes information to indicate common transmission parameters to be used by the multiple client stations for the uplink MU transmission, and (ii) one or more per-station information fields that include respective information to indicate respective transmission parameters to be used by one or more respective client stations for the uplink MU transmission, wherein generating each of the one or more trigger frames includes;
generating the common information field to include (i) a subfield that indicates a bandwidth of the uplink MU transmission, and (ii) information that indicates a guard interval and a long training field (LTF) mode to be used by the multiple client stations for the uplink MU transmission, andgenerating each per-station field to include respective frequency allocation information that indicates respective frequency resources to be used by the respective client station for the uplink MU transmission;
transmitting, by the access point, the one or more trigger frames to the multiple client stations; and
receiving, at the access point, the triggered uplink MU transmission, wherein the triggered uplink MU transmission includes respective simultaneous transmissions from the multiple client stations.
2 Assignments
0 Petitions
Accused Products
Abstract
An access point generates a trigger frame to trigger an uplink multi-user (MU) transmission by multiple client stations. The access point generates the trigger frame to include a common information field and multiple per-station information fields. The access point generates the common information field to include (i) a subfield that indicates a bandwidth of the uplink MU transmission, and (ii) information that indicates a guard interval and a long training field (LTF) mode to be used by the multiple client stations for the uplink MU transmission, and generates each per-station field to include respective frequency allocation information that indicates respective frequency resources to be used by the respective client station for the uplink MU transmission. The access point transmits the trigger frame to the multiple client stations to trigger the uplink MU transmission by the multiple client stations.
7 Citations
20 Claims
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1. A method for communicating in a wireless communication network, the method comprising:
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generating, at an access point, one or more trigger frames to trigger an uplink multi-user (MU) transmission by multiple client stations, wherein each of the one or more trigger frames includes a medium access control (MAC) header portion and a MAC frame body portion, wherein the MAC frame body portion includes (i) a common information field that includes information to indicate common transmission parameters to be used by the multiple client stations for the uplink MU transmission, and (ii) one or more per-station information fields that include respective information to indicate respective transmission parameters to be used by one or more respective client stations for the uplink MU transmission, wherein generating each of the one or more trigger frames includes; generating the common information field to include (i) a subfield that indicates a bandwidth of the uplink MU transmission, and (ii) information that indicates a guard interval and a long training field (LTF) mode to be used by the multiple client stations for the uplink MU transmission, and generating each per-station field to include respective frequency allocation information that indicates respective frequency resources to be used by the respective client station for the uplink MU transmission; transmitting, by the access point, the one or more trigger frames to the multiple client stations; and receiving, at the access point, the triggered uplink MU transmission, wherein the triggered uplink MU transmission includes respective simultaneous transmissions from the multiple client stations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An access point for communicating in a wireless communication network, the access point comprising:
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a network interface device having one or more integrated circuits (ICs) configured to; generate one or more trigger frames to trigger an uplink multi-user (MU) transmission by multiple client stations, wherein each of the one or more trigger frames includes a medium access control (MAC) header portion and a MAC frame body portion, wherein the MAC frame body portion includes (i) a common information field that includes information to indicate common transmission parameters to be used by the multiple client stations for the uplink MU transmission, and (ii) one or more per-station information fields that include respective information to indicate respective transmission parameters to be used by one or more respective client stations for the uplink MU transmission, and for each of the one or more trigger frames; generate the common information field to include (i) a subfield that indicates a bandwidth of the uplink MU transmission, and (ii) information that indicates a guard interval and a long training field (LTF) mode to be used by the multiple client stations for the uplink MU transmission, and generate each per-station field to include respective frequency allocation information that indicates respective frequency resources to be used by the respective client station for the uplink MU transmission; wherein the one or more ICs are further configured to; transmit the one or more trigger frames to the multiple client stations, and receive the triggered uplink MU transmission, wherein the triggered uplink MU transmission includes respective simultaneous transmissions from the multiple client stations. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification