Procedures for high efficiency acknowledgement transmission

Abstract

A method for high efficiency (HE) acknowledgement transmission may be performed by a station (STA) in a wireless local area network (WLAN) system. The method may include receiving a downlink (DL) frame indicating a resource allocation for the STA to transmit an uplink (UL) transmission. It may further include transmitting an acknowledgement frame in a single-user (SU) transmission or multi-user (MU) transmission, where the acknowledgement frame includes an indication of an operation mode change.

What is claimed is: 
     
         1 . A station (STA) comprising:
 a transceiver, coupled to a baseband processor, a memory, a power source and an antenna;   the transceiver configured to:
 receive a downlink (DL) frame indicating a resource allocation for the STA to transmit an uplink (UL) transmission; and 
 transmit an acknowledgement frame in a single-user (SU) transmission or multi-user (MU) transmission, wherein the acknowledgement frame includes an indication of an operation mode change. 
   
     
     
         2 . The STA of  claim 1 , wherein the indication of an operation mode change includes a change in SU/MU orthogonal frequency division multiple access (OFDMA) capability. 
     
     
         3 . The STA of  claim 1 , wherein the indication of an operation mode change includes a change in a number of spatial streams (Nss). 
     
     
         4 . The STA of  claim 1 , wherein the indication of an operation mode change includes a change in an operation bandwidth. 
     
     
         5 . The STA of  claim 1 , wherein the indication of an operation mode change includes a change in an operation resource block width. 
     
     
         6 . A method performed by a station (STA) comprising:
 receiving a downlink (DL) frame indicating a resource allocation for the STA to transmit an uplink (UL) transmission; and   transmitting an acknowledgement frame in a single-user (SU) transmission or a multi-user (MU) transmission, wherein the acknowledgement frame includes an indication of an operation mode change.   
     
     
         7 . The method of  claim 6 , wherein the indication of an operation mode change includes a change in SU/MU orthogonal frequency division multiple access (OFDMA) capability. 
     
     
         8 . The method of  claim 6 , wherein the indication of an operation mode change includes a change in a number of spatial streams (Nss). 
     
     
         9 . The method of  claim 6 , wherein the indication of an operation mode change includes a change in an operation bandwidth. 
     
     
         10 . The method of  claim 6 , wherein the indication of an operation mode change includes a change in an operation resource block width. 
     
     
         11 . An access point (AP) comprising:
 a transceiver, coupled to a baseband processor, a memory, a power source and an antenna;   the transceiver configured to:
 transmit a downlink (DL) frame indicating resource allocation for the STA to transmit uplink (UL) transmissions; and 
 receive an acknowledgement frame in a single-user (SU) or multi-user (MU) transmission, wherein the acknowledgement frame includes an indication of an operation mode change. 
   
     
     
         12 . The AP of  claim 11 , wherein the baseband processor is configured to adjust a resource allocation based on the operation mode change. 
     
     
         13 . The AP of  claim 11 , wherein the baseband processor is configured to allocate a different number of resource blocks (RBs) and channel based on the operation mode change. 
     
     
         14 . The AP of  claim 11 , wherein the baseband processor is configured to allocate a different number of spatial streams (Nss) based on the operation mode change. 
     
     
         15 . The AP of  claim 11 , wherein the baseband processor is configured to change transmission/reception settings based on the operation mode change. 
     
     
         16 . The AP of  claim 11 , wherein the baseband processor is configured to switch between single-user (SU) and multi-user (MU) transmission mode based on the operation mode change. 
     
     
         17 . The AP of  claim 11 , wherein the indication of an operation mode change includes a change in SU/MU orthogonal frequency division multiple access (OFDMA) capability. 
     
     
         18 . The AP of  claim 11 , wherein the indication of an operation mode change includes a change in a number of spatial streams (Nss). 
     
     
         19 . The AP of  claim 11 , wherein the indication of an operation mode change includes a change in an operation bandwidth. 
     
     
         20 . The AP of  claim 11 , wherein the indication of an operation mode change includes a change in an operation resource block width.