Patent ID: 11909463
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method of wireless communication performed by a base station (BS), comprising:
configuring an inter-beam phase factor tracking reference signal configuration for inter-beam phase factor tracking;
transmitting, to a user equipment (UE), an indication of the inter-beam phase factor tracking reference signal configuration;
transmitting an inter-beam phase factor tracking reference signal based at least in part on the inter-beam phase factor tracking reference signal configuration, the inter-beam phase factor tracking reference signal comprising a reference signal with a shortest periodicity among a hierarchy of a plurality of reference signal periodicities, wherein the inter-beam phase factor tracking reference signal comprises a channel state information reference signal (CSI-RS), and
wherein the hierarchy of the plurality of periodicities comprises a plurality of CSI-RS periodicities;
receiving an indication of a set of inter-beam phase factors associated with one or more measurements of the inter-beam phase factor tracking reference signal; and
determining, based at least in part on the set of inter-beam phase factors, an estimated combined beam for multi-beam combining (i) over at least two static directions or (ii) over at least two beams from one or more antenna panels.