Apparatus, computer readable medium, and method for pre-association frame exchange using random access in a high efficiency wireless local-area network
View Patent ↗Methods, apparatuses, and computer readable media for pre-association frame exchange using random access are disclosed. An apparatus of a high-efficiency wireless local-area network (HEW) master station is disclosed. The apparatus includes transceiver circuitry and processing circuitry which may be configured to generate a trigger frame for uplink random access (TF-R), and transmit the TF-R. The transceiver circuitry and processing circuitry may be further configured to receive one or more responses in accordance with orthogonal frequency division multiple-access (OFDMA) to the trigger frame from one or more pre-association stations where the responses comprise pre-association identifiers corresponding to the one or more pre-association stations. Moreover, the transceiver circuitry and processing circuitry may be further configured to generate one or more acknowledgements to the one or more pre-association stations, and transmit the acknowledgements in accordance with OFDMA to the one or more pre-association stations.
1. An apparatus of a high-efficiency (HE) master station, the HE master station comprising transceiver circuitry and processing circuitry configured to:
transmit a trigger frame for uplink random access (TF-R);
receive one or more pre-association uplink management frames in response to the trigger frame in accordance with orthogonal frequency division multiple-access (OFDMA) from one or more pre-association stations, wherein each response from the one or more pre-association stations comprises a pre-association identifier; and
transmit one or more acknowledgements to the one or more pre-associaton stations in accordance with OFDMA, wherein the pre-association identifier is transmitted within a duration field of the pre-association uplink management frames.
2. The apparatus of claim 1 , wherein the one or more acknowledgements are a block acknowledgement frame comprising the pre-association identifier for each of the one or more pre-association stations.
3. The apparatus of claim 2 . wherein the Nock acknowledgement frame further comprises a field to indicate whether the block acknowledgment frame is for stations with pre-association identifiers or stations with association identifiers.
4. The apparatus of claim 3 , wherein the field is to be ignored if all the one or more pre-association uplink management frames are from pre-association stations.
5. The apparatus of claim 4 , wherein the block acknowledgement frame further comprise a field to indicate that the block acknowledgement frame is a block acknowledgement frame to an uplink management frame from pre-association stations.
6. The apparatus of claim 1 , wherein the transceiver circuitry and processing circuitry are configured to: receive data frames from stations with association identifiers and refrain from receiving data frames from stations with pre-association identifiers.
7. The apparatus of claim 1 , wherein the TF-R comprises at least one pre-association identifier corresponding to one of the one or more pre-association stations, and wherein the transceiver circuitry and processing circuitry are further configured to:
transmit the TF-R on one or more channels with the at least one pre-association identifier in accordance with OFDMA.
8. The apparatus of claim 1 , wherein the TF-R comprises an indication of one or more channels for the one or more pre-association stations to transmit on and a duration of a random access transmission opportunity.
9. The apparatus of claim 8 , wherein the TF-R indicates that only pre-association stations are to transmit in the random access transmission opportunity.
10. The apparatus of claim 1 , wherein the pre-association identifiers are generated by the one or more pre-association stations.
11. The apparatus of claim 10 , wherein the one or more pre-association stations randomly generate the corresponding pre-association identifier if a back-off counter decrements to a predetermined value, wherein the back-off counter is for accessing a channel in accordance with OFDMA.
12. The apparatus of claim 1 , wherein the transceiver circuitry and processing circuitry is further configured to:
generate the one or more acknowledgements to the one or more pre-association stations with a media access control address of the corresponding one or more pre-association stations.
13. The apparatus of claim 1 , further comprising:
memory coupled to the transceiver circuitry and processing circuitry; and,
one or more antennas coupled to the transceiver circuitry and processing circuitry.
14. The apparatus of claim 1 , further comprising inemory coupled to the transceiver circuitry and processing circuitry, wherein the memory is configured to store the TF-R, the one or more pre-association uplink management frames, and the one or more acknowledgements.
15. A non-transitor computer-readable storage medium that stores instructions for execution by one or more processors, the instructions to configure the one or more processors to cause a high-efficiency wireless local-area network (HEW) master station to:
transmit a trigger frame for uplink random access (TF-R);
receive one or more pre-association uplink management frames in response to the trigger frame in accordance with orthogonal frequency division multiple-access (OFDMA) from one or more pre-association stations, wherein each response from the one or more pre-association stations comprises a pre-association identifier; and
transmit one or more acknowledgements to the one or more pre-association stations in accordance with OFDMA, wherein the pre-association identifier is transmitted within a duration field of the pre-association uplink management frames.
16. The non-transitory computer-readable storage medium of claim 15 , wherein the one or more acknowledgements are a block acknowledgement frame comprising the pre-association identifier for each of the one or more pre-association stations.
17. An apparatus of a high-efficiency (HE) station, the HE station comprising transceiver circuitry and processing circuitry configured to:
receive a block acknowledgement (BA) frame comprising one or more identifiers; and
determine whether a BA information field of the block acknowledgement frame is for an unassociated station or a station with an association identifier based on a field of the BA information field that indicates whether the BA information field is for the unassociated station or the station with the association identifier, wherein a value of the field of 1111 indicates the BA information field is for the unassociated station, and wherein a pre-association identifier and an association identifier are to be indicated in a same field of the BA information field.
18. The apparatus of claim 17 , wherein the field is one of a traffic identifier field or a block acknowledgment bitmap field of the block acknowledgement frame in accordance with Institute of Electrical and Electronic Engineers (IEEE) 802.11.
19. The apparatus of claim 17 , wherein a master station is configured to receive data frames from stations with association identifiers and refrain from receiving data frames from stations with pre-association identifiers.
20. The apparatus of claim 17 , further comprising:
memory coupled to the transceiver circuitry and processing circuitry; and,
one or more antennas coupled to the transceiver circuitry and processing circuitry.
21. The apparatus of claim 17 , further comprising memory coupled to the transceiver circuitry and processing circuitry, wherein the memory is configured to store the BA frame.
22. The apparatus of claim 17 , wherein if the BA information field is for the unassociated station, the BA information field further comprises a media access control address of the unassociated station.
23. The apparatus of claim 17 , wherein the pre-association identifier indicates the BA information field is for the unassociated station.
24. A method performed by a high-efficiency wireless local-area network (HEW) station, the method comprising:
transmit a trigger frame for uplink random access (TF-R);
receive one or more pre-associations uplink management frames in response to the trigger frame in accordance with orthogonal frequency division multiple-access (OFDMA) from one or more pre-association stations, wherein each response from the one or more pre-association stations comprises a pre-association identifier; and
transmit one or more acknowledgements to the one or more pre-association stations in accordance with OFDMA, wherein the pre-association identifier is transmitted within a duration field of the pre-association uplink management frames.
25. The method of claim 24 , wherein the one or more acknowledgements are a block acknowledgement frame comprising for each of the one or more pre-association stations a corresponding pre-association identifier.