US 12,439,275 B2
Beam adaptation for reconfigurable intelligent surface aided UE positioning
Weimin Duan, San Diego, CA (US); and Hyojin Lee, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 19, 2022, as Appl. No. 17/813,456.
Prior Publication US 2024/0031823 A1, Jan. 25, 2024
Int. Cl. H04W 16/28 (2009.01); H04B 17/318 (2015.01); H04W 24/10 (2009.01)
CPC H04W 16/28 (2013.01) [H04B 17/318 (2015.01); H04W 24/10 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication at a user equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:
obtain an indication of beam pattern information for a set of downlink (DL) beams for a network entity, wherein the set of DL beams is associated with a reconfigurable intelligent surface (RIS);
adjust a first transmission angle for a set of uplink (UL) beams based on the beam pattern information and measurement for the set of DL beams, wherein the first transmission angle for the set of UL beams is adjusted to proximately align with a second transmission angle of the set of DL beams from the RIS;
transmit, via the RIS, the set of UL beams to the network entity based on the adjusted first transmission angle;
measure a reference signal received power (RSRP) for each of the set of DL beams from the RIS; and
transmit a report of the RSRP measurement for each of the set of DL beams to the network entity, wherein to obtain the indication of the beam pattern information, the at least one processor is further configured to receive, from the network entity, a second information indicative of a difference between an angle of the set of DL beams from the RIS and an angle of departure (AoD) of the UE.