Patent ID: 9369918
Filing Date: 2016-06-14
CPC Classification: H04W

Claim Text:
1. A method for use in a first wireless transmit/receive unit (WTRU), the method comprising: maintaining a network allocation vector (NAV); receiving a contention free (CF)-End frame from a second WTRU, wherein the CF-End frame includes a duration field and a basic service set identifier (BSSID) field indicating a medium access control (MAC) address associated with an access point (AP), wherein the BSSID field includes an individual/group bit; and on a condition that the individual/group bit of the BSSID field has a value of one (1), determining that a scrambling sequence of the CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the second WTRU and resetting the NAV.