Method and apparatus for supporting management actions for very high throughput in wireless communications
A method and apparatus may be used in Very High Throughput (VHT) Wireless Local Area Network (WLAN) management actions. Management action frames such as VHT Action frames may be used to implement VHT features in WLANs. Extensions to 802.11 Action frames may be used to support VHT features and provide backward compatibility. VHT Management Actions may be supported with VHT Action frames and VHT extensions to 802.11 Action frames in various categories such as Direct Link Setup (DLS), Public, Spectrum Management and high throughput (HT). An access point (AP) or a wireless transmit/receive unit (WTRU) may indicate VHT capability by way of signaling.
1. A method for use in wireless communications, the method comprising:
transmitting a sounding packet to a station (STA); and
receiving, from the STA, an Action No Acknowledgement (ACK) frame that includes a Very High Throughput (VHT) multiple input multiple output (MIMO) Control field and a VHT Compressed Beamforming Report field, wherein the VHT MIMO Control field indicates a channel width related to a multi-channel non-contiguous spectrum transmission associated with the sounding packet, and wherein the VHT Compressed Beamforming Report field includes information based on a value indicated in the VHT MIMO Control field.
2. The method of claim 1 , wherein the VHT MIMO Control field indicates a number of columns in a matrix and a number of rows in the matrix.
3. The method of claim 1 , wherein the VHT MIMO Control field indicates a bandwidth configuration that includes a plurality of secondary channels for a VHT multi-channel transmission relative to a primary channel.
4. The method of claim 1 , wherein the VHT Compressed Beamforming Report field includes a plurality of orthogonal frequency division multiplex (OFDM) sub-carriers, wherein the OFDM sub-carriers are grouped in a set.
5. The method of claim 1 , wherein a compressed beamforming matrix code book information size is included in the VHT MIMO Control field.
6. The method of claim 1 , wherein the VHT MIMO Control field indicates a remaining segment number of an associated measurement report.
7. The method of claim 1 , wherein the VHT Compressed Beamforming Report field includes an average signal to noise ratio (SNR) for each of a number of space-time streams.
8. The method of claim 1 , wherein the VHT Compressed Beamforming Report field includes a Beamforming Feedback Matrix for each of a number of space-time streams.
9. An access point (AP) comprising:
a transmitter configured to transmit a sounding packet; and
a receiver configured to receive an Action No Acknowledgement (ACK) frame that includes a Very High Throughput (VHT) multiple input multiple output (MIMO) Control field and a VHT Compressed Beamforming Report field, wherein the VHT MIMO Control field indicates a channel width related to a multi-channel non-contiguous spectrum transmission associated with the sounding packet, and wherein the VHT Compressed Beamforming Report field includes information based on a value indicated in the VHT MIMO Control field.
10. The AP of claim 9 , wherein the VHT MIMO Control field indicates a number of columns in a matrix and a number of rows in the matrix.
11. The AP of claim 9 , wherein the VHT MIMO Control field indicates a bandwidth configuration that includes a plurality of secondary channels for a VHT multi-channel transmission relative to a primary channel.
12. The AP of claim 9 , wherein the VHT Compressed Beamforming Report field includes a plurality of orthogonal frequency division multiplex (OFDM) sub-carriers, wherein the OFDM sub-carriers are grouped in a set.
13. The AP of claim 9 , wherein a compressed beamforming matrix code book information size is included in the VHT MIMO Control field.
14. The AP of claim 9 , wherein the VHT MIMO Control field indicates a remaining segment number of an associated measurement report.
15. The AP of claim 9 , wherein the VHT Compressed Beamforming Report field includes an average signal to noise ratio (SNR) for each of a number of space-time streams.
16. The AP of claim 9 , wherein the VHT Compressed Beamforming Report field includes a Beamforming Feedback Matrix for each of a number of space-time streams.
17. An access point (AP) comprising:
a transmitter configured to transmit a sounding packet; and
a receiver configured to receive an Action No Acknowledgement (ACK) frame that includes a Very High Throughput (VHT) multiple input multiple output (MIMO) Control field and a VHT Compressed Beamforming Report field, wherein the VHT MIMO Control field indicates a channel width related to a multi-channel non-contiguous spectrum transmission associated with the sounding packet;
wherein the VHT Compressed Beamforming Report field includes an average signal to noise ratio (SNR) for each of a number of space-time streams and a Compressed Beamforming Feedback Matrix for each of a number of space-time streams.
18. The AP of claim 17 , wherein the VHT MIMO Control field indicates a number of columns in a matrix and a number of rows in the matrix.
19. The AP of claim 17 , wherein a compressed beamforming matrix code book information size is included in the VHT MIMO Control field.
20. The AP of claim 17 , wherein the VHT MIMO Control field indicates a remaining segment number of an associated measurement report.