US 12,308,926 B2
Apparatus for selecting radio beams
Oana-Elena Barbu, Aalborg (DK); Johannes Harrebek, Aalborg (DK); and Benny Vejlgaard, Gistrup (DK)
Assigned to NOKIA TECHNOLOGIES OY, Espoo (FI)
Appl. No. 17/998,406
Filed by Nokia Technologies OY, Espoo (FI)
PCT Filed May 12, 2021, PCT No. PCT/US2021/031954
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/231548, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 20174410 (EP), filed on May 13, 2020.
Prior Publication US 2023/0231614 A1, Jul. 20, 2023
Int. Cl. H04W 72/51 (2023.01); H04B 7/06 (2006.01); H04W 16/28 (2009.01); H04W 64/00 (2009.01)
CPC H04B 7/0695 (2013.01) [H04W 16/28 (2013.01); H04W 64/00 (2013.01); H04W 72/51 (2023.01)] 1 Claim
OG exemplary drawing
 
1. A terminal device comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to with the at least one processor, cause the terminal device at least to:
measure signals relating to a plurality of radio beams;
determine, based on the measured signals, at least one metric relating to radio beam quality and at least one metric relating to radio beam positioning of radio beams, wherein the at least one metric relating to radio beam quality includes radio beam power and the at least one metric relating to radio beam positioning includes propagation delay, wherein radio beam power includes received signal power such as a received signal strength indicator (RSSI) or a reference signal received power (RSRP), and propagation delay includes a timing advance or time of arrival;
transmit a set of data relating to the plurality of radio beams to at least one access node, wherein the set of data includes the at least one metric relating to radio beam quality and the at least one metric relating to radio beam positioning of radio beams;
estimate a direction of an arrival path of radio beams provided by the at least one access node, wherein estimating the direction of the arrival path includes switching receive beams until captured energy is the highest, and estimating a complex gain of one or more multipath components; and
select a subset of radio beams provided by the at least one access node, wherein selecting the subset of radio beams includes collecting signal energy from a specified transmitter, wherein the terminal device is served by a first access node, wherein the measurement data comprises a synchronization signal block (SSB) associated with a radio beam provided by at least one second access node, wherein the SSB comprises at least a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and wherein the PSS and SSS are used for radio frame synchronization.