US 11,737,074 B2
Communication device and method for low-latency initial access to non-standalone 5G new radio network
Ahmadreza Rofougaran, Newport Beach, CA (US); Maryam Rofougaran, Rancho Palos Verdes, CA (US); and Sam Gharavi, Irvine, CA (US)
Assigned to Movandi Corporation, Lockport, IL (US)
Filed by Movandi Corporation
Filed on Sep. 26, 2022, as Appl. No. 17/952,651.
Application 17/952,651 is a continuation of application No. 17/038,191, filed on Sep. 30, 2020, granted, now 11,470,612.
Application 17/038,191 is a continuation of application No. 16/397,713, filed on Apr. 29, 2019, granted, now 10,834,724, issued on Nov. 10, 2020.
Prior Publication US 2023/0014511 A1, Jan. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 56/00 (2009.01); H04W 72/044 (2023.01); H04B 17/318 (2015.01); H04W 84/04 (2009.01); H04B 7/06 (2006.01)
CPC H04W 72/046 (2013.01) [H04B 17/318 (2015.01); H04W 56/0015 (2013.01); H04B 7/0695 (2013.01); H04W 84/042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A communication device, comprising:
a front-end radio frequency (RF) circuitry;
a digital signal processor communicatively coupled to the front-end RF circuitry, wherein the digital signal processor is configured to:
initiate beam acquisition, by use of the front-end RF circuitry, in a receive-only mode;
set beam reception at the front-end RF circuitry to an omni-mode in which a plurality of different beams of RF signals are receivable at the communication device from a plurality of different directions;
execute a primary signal synchronization (PSS) search from each signal synchronization block (SSB) location of a plurality of SSB locations, wherein each SSB location of the plurality of SSB locations indicates a carrier frequency offset;
measure received signal strength indicator (RSSI) for each beam of the plurality of different beams of RF signals for each SSB location of the plurality of SSB locations;
switch to a specific beam of RF signals in a New Radio (NR) frequency that has a highest RSSI among the received plurality of different beams for beam reception, based on the executed PSS search; and
deactivate the receive-only mode and activate communication of the specific beam of RF signals in the NR frequency band to a customer premise equipment (CPE) or a user equipment (UE) for an access to the beam of RF signals in the NR frequency band at the CPE or the UE.