Apparatus, system and method of multi user ranging measurement

An apparatus comprising logic and circuitry configured to cause a wireless communication station to:

• generate a plurality of sounding sequences corresponding to a plurality of stations (STAs), the plurality of sounding sequences comprising at least first and second different sounding sequences, the first sounding sequence corresponding to at least one first STA of the plurality of STAs, the second sounding sequence corresponding to at least one second STA of the plurality of STAs;
• during a Multi-User (MU) ranging measurement, transmit a MU frame to indicate a MU Downlink (DL) transmission;
• and
• following the MU frame, transmit a MU DL Null Data Packet (NDP) transmission to the plurality of STAs, the MU DL NDP transmission comprising a plurality of Long Training Fields (LTFs) comprising the plurality of sounding sequences.

A product including one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a wireless communication station to:

• generate a plurality of sounding sequences corresponding to a plurality of stations (STAs), the plurality of sounding sequences comprising at least first and second different sounding sequences, the first sounding sequence corresponding to at least one first STA of the plurality of STAs, the second sounding sequence corresponding to at least one second STA of the plurality of STAs;
• during a Multi-User (MU) ranging measurement, transmit a MU frame to indicate a MU Downlink (DL) transmission;
• and
• following the MU frame, transmit a MU DL Null Data Packet (NDP) transmission to the plurality of STAs, the MU DL NDP transmission comprising a plurality of Long Training Fields (LTFs) comprising the plurality of sounding sequences.

An apparatus comprising circuitry and logic configured to cause a first wireless station (STA) to:

• during a Multi-User (MU) ranging measurement, receive a MU frame from a second STA to indicate a MU Downlink (DL) transmission, the MU frame comprises allocation information to indicate an allocation of a plurality of Long Training Fields (LTFs) to a plurality of STAs including the first STA, the allocation information to indicate which one or more LTFs of the plurality of LTFs comprises a sounding sequence corresponding to the first STA;
• following the MU frame, receive a MU DL Null Data Packet (NDP) transmission comprising the plurality of LTFs;
• and
• based on the allocation information, determine one or more measurements on the one or more LTFs comprising the sounding sequence corresponding to the first STA.

A product including one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a first wireless communication station (STA) to:

• during a Multi-User (MU) ranging measurement, receive a MU frame from a second STA to indicate a MU Downlink (DL) transmission, the MU frame comprises allocation information to indicate an allocation of a plurality of Long Training Fields (LTFs) to a plurality of STAs including the first STA, the allocation information to indicate which one or more LTFs of the plurality of LTFs comprises a sounding sequence corresponding to the first STA;
• following the MU frame, receive a MU DL Null Data Packet (NDP) transmission comprising the plurality of LTFs;
• and
• based on the allocation information, determine one or more measurements on the one or more LTFs comprising the sounding sequence corresponding to the first STA.