Passive location measurement

A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:

• initiating a passive trigger based (TB) ranging measurement with first device and a second device, wherein the passive TB ranging measurement comprises a passive TB ranging measurement phase followed by a passive TB ranging measurement reporting phase;
• encoding a downlink (DL) location measurement report (LMR) frame for transmission;
• encoding a trigger frame (TF) for transmission to the first device and second device;
• wherein the TF triggers the first device to send a first UL LMR the second device to send a second UL LMR;
• encoding, during the passive TB ranging measurement reporting phase, a first broadcast LMR comprising measurement information of the first device and the second device carried in the DL LMR;
• and
• encoding, during the passive TB ranging measurement reporting phase, a second broadcast LMR comprising the measurement information carried in first UL LMR and the second UL LMR.

A method comprising:

• initiating, by one or more processors, a passive trigger based (TB) ranging measurement with first device and a second device, wherein the passive TB ranging measurement comprises a passive TB ranging measurement phase followed by a passive TB ranging measurement reporting phase;
• encoding a downlink (DL) location measurement report (LMR) frame for transmission;
• encoding a trigger frame (TF) for transmission to the first device and second device;
• wherein the TF triggers the first device to send a first UL LMR the second device to send a second UL LMR;
• encoding, during the passive TB ranging measurement reporting phase, a first broadcast LMR comprising measurement information of the first device and the second device carried in the DL LMR;
• and
• encoding, during the passive TB ranging measurement reporting phase, a second broadcast LMR comprising the measurement information carried in first UL LMR and the second UL LMR.