Scheduling mechanisms for media access control protection and channel sounding
First Claim
Patent Images
1. A method comprising:
- transmitting, by a device, at least one data block comprising at least one field to one or more stations, the at least one field comprising a very high throughput signal (VHT-SIG-B) field that includes an offset value, the VHT-SIG-B field is transmitted in a beam formed fashion to facilitate differing offset value for each station, wherein the offset value indicates start and end of transmission of a block acknowledgement by each station;
receiving, by the device, of the block acknowledgement from each station, where an order of receiving the block acknowledgement is based upon the transmitted offset value;
transmitting, by the device, of a schedule frame that includes station association identification (STA-AID) fields, the STA AID fields facilitate a desired order of transmitting a response by each station;
and receiving in the desired order, by the device, of the response from the one or more stations;
transmitting a null data packet frame that solicits a beam form (BF) feedback frame as the response, the response is appended to the block acknowledgement (BA) during a transmission by the station to the device.
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Abstract
Channel sounding for spatial division multiple access (SDMA) under the IEEE 802.11 protocol is described.
39 Citations
19 Claims
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1. A method comprising:
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transmitting, by a device, at least one data block comprising at least one field to one or more stations, the at least one field comprising a very high throughput signal (VHT-SIG-B) field that includes an offset value, the VHT-SIG-B field is transmitted in a beam formed fashion to facilitate differing offset value for each station, wherein the offset value indicates start and end of transmission of a block acknowledgement by each station; receiving, by the device, of the block acknowledgement from each station, where an order of receiving the block acknowledgement is based upon the transmitted offset value; transmitting, by the device, of a schedule frame that includes station association identification (STA-AID) fields, the STA AID fields facilitate a desired order of transmitting a response by each station; and receiving in the desired order, by the device, of the response from the one or more stations; transmitting a null data packet frame that solicits a beam form (BF) feedback frame as the response, the response is appended to the block acknowledgement (BA) during a transmission by the station to the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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transmitting simultaneously during a transmission opportunity (TXOP), by a device, a schedule frame to one or more stations, the schedule frame comprising a plurality of station association identifier (STA-AID) fields, that is configured to facilitate a desired order of transmitting a response by each station and one field comprising a very high throughput signal (VHT-SIG-B) field that includes an offset value, the VHT-SIG-B field is transmitted in a beam formed fashion to facilitate differing offset value for each station, wherein the offset value indicates start and end of transmission of a block acknowledgement by each station; and receiving during the TXOP, by the device, of the block acknowledgement and a the response responsive to the schedule frame from the one or more stations in the desired order; transmitting a null data packet frame that solicits a beam form (BF) feedback frame as the response, the response is appended to the block acknowledgement (BA) during a transmission by the station to the device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A device, comprising:
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a processing unit; a memory coupled to the processing unit; a transmitter, coupled to the processing unit, to simultaneously transmit omni-directional a schedule frame during transmission opportunity (TXOP), the schedule frame comprising a plurality of station association identifier (STA-AID) fields, that is configured to facilitate a desired order of transmitting a response by each station, and one field comprising a very high throughput signal (VHT-SIG-B) field that includes an offset value, the VHT-SIG-B field is transmitted in a beam formed fashion to facilitate differing offset value for each station, wherein the offset value indicates start and end of transmission of a block acknowledgement by each station; a receiver, coupled to the processing unit, to receive the block acknowledgement and the response from the one or more stations in the desired order, wherein the block acknowledgement and the response are received within the TXOP; and transmitting a null data packet frame that solicits a beam form (BF) feedback frame as the response, the response is appended to the block acknowledgement (BA) during a transmission by the station to the device. - View Dependent Claims (19)
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Specification