Patent ID: 8619808
Filing Date: 2013-12-31
Classification: H04W

Abstract:
1. A method of updating a Network Allocation Vector (NAV) Timer, comprising: receiving a first frame with a first source address and a first destination address; receiving a second frame with a second source address and a second destination address; and updating the NAV Timer by comparing the first and second source addresses and the first and second destination addresses wherein: when a STA receives a mmWaveCTS-to-Self frame and the following data frames also have the same source address, the same NAV Timer will be updated; when a STA receives a valid data frame with RA and TA values that match the NAVSRC and NAVDST values, in any order, and for any NAV Timer, then the STA should set the associated NAV Timer to the value of the duration field in the received frame; when a STA receives a valid mmWaveCF-End response with RA and TA values that match the NAVSRC and NAVDST values, in any order, and for any NAV Timer, then the STA should set the associated NAV Timer to the value of the duration field in the received mmWaveCF-End frame; when one of the NAVSRC or NAVDST of a NAV Timer is 0 and the corresponding NAVDST or NAVSRC, respectively, of the NAV Timer match the RA or the TA value of the received valid mmWaveCF-End frame, then the STA should set the associated NAV Timer to the value of the duration field in the received mmWaveCF-End frame; when a STA receives an ACK frame followed by a data frame where the RA in an ACK frame and the TA in a data frame are the same, the same NAV Timer will be updated; and when a STA receives an ACK frame followed by a data frame where the RA in an ACK frame and the RA in a data frame are the same, the same NAV Timer will be updated.