Patent ID: 11953585
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A first user equipment (UE) for wireless communication, comprising:
memory; and
one or more processors coupled to the memory, the memory comprising instructions executable by the one or more processors to cause the first UE to:
transmit, to a second UE via reflection by one or more passive devices, a first reference signal (RS) that is based at least in part on a first key that is shared with the second UE and that corresponds to a configuration of the one or more passive devices wherein the configuration includes a timing of when each of the one or more passive devices is active or inactive;
receive, from the second UE via reflection by the one or more passive devices and in association with the transmitting of the first RS, a second RS that is based at least in part on the first key;
generate a second key based at least in part on a measurement of the second RS on a channel that is established between the first UE and the second UE according to the configuration of the one or more passive devices; and
transmit a positioning reference signal (PRS) that is based at least in part on the second key and that is associated with a measurement of a range between the first UE and the second UE.