US 12,408,206 B2
Beam management during initial access
Olof Zander, Sodra Sandby (SE); Fredrik Rusek, Eslov (SE); Erik Bengtsson, Eslov (SE); Kun Zhao, Malmo (SE); and Jose Flordelis, Lund (SE)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 17/790,714
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Jan. 14, 2021, PCT No. PCT/EP2021/050665
§ 371(c)(1), (2) Date Jul. 1, 2022,
PCT Pub. No. WO2021/144351, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 2030011-7 (SE), filed on Jan. 14, 2020.
Prior Publication US 2023/0060540 A1, Mar. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/06 (2006.01); H04W 74/00 (2009.01); H04W 74/08 (2024.01); H04W 74/0833 (2024.01)
CPC H04B 7/0695 (2013.01) [H04W 74/006 (2013.01); H04W 74/0833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of operating a wireless communication device configured to connect to a communications network, the method comprising:
monitoring for multiple downlink reference signals transmitted by at least one access node of the communications network using multiple downlink transmit beams, each one of the multiple downlink reference signals being associated with a respective at least one of multiple random-access occasions,
accessing at least two random-access occasions of the multiple random-access occasions, the at least two random-access occasions being associated with at least two downlink reference signals selected from the multiple downlink reference signals based on said monitoring, and
establishing a multi-beam operation between the wireless communication device and the communications network, wherein the multi-beam operation is established based on at least two downlink transmit beams used for transmitting the selected at least two downlink reference signals.