Resolution for CID 118 and 664. Date: 2011-05-11. Authors:. Slide 1. Comment 118 and 664 related to TXOP PS. Proposed Text change from 593 r5. 126.96.36.199a Power management during VHT transmissions
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188.8.131.52a Power management during VHT transmissions
The power management scheme described in this section is applicable only when the dot11VHTTXOPPowerSave is true at VHT AP. The non-AP VHT STAs that are in Active mode (see Table 11-1—Power Management modes) and have dot11TXOPPowerSave set to true operate in TXOP power save mode. A VHT AP may or may not allow non-AP VHT STAs in TXOP power save mode to enter the Doze state during a TXOP. A VHT AP shall indicate this using TXOP_PS_NOT_ALLOWED parameter in TXVECTOR of a frame with FORMAT VHT..The value of this parameter in the TXVECTOR of all VHT PPDUs transmitted by VHT AP shall remain same for the duration of TXOP. The value of this parameter in the TXVECTOR of all VHT PPDUs transmitted by VHT AP may be changed from 1 to 0 during the TXOP to enable TXOP PS for the remainder of the TXOP. The value of this parameter in the TXVECTOR of all VHT PPDUstransmitted by VHT AP shall not be changed from 0 to 1 during the TXOP.
STA1 or STA Group1
STA2 or STA Group 2
Set TXOP_PS_NOT_ALLOWED = 0 here
Set TXOP_PS_NOT_ALLOWED = 1
at the beginning of a TXOP
All other STAs operating in TXOP
PS mode goes to DOZE state
No STA goes to DOZE state