US 12,177,839 B2
User equipment and method for system information modification and acquisition procedure
Hung-Chen Chen, Taipei (TW); Chie-Ming Chou, Taipei (TW); and Yung-Lan Tseng, Taipei (TW)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Dec. 12, 2022, as Appl. No. 18/079,746.
Application 18/079,746 is a continuation of application No. 17/128,165, filed on Dec. 20, 2020, granted, now 11,653,352.
Application 17/128,165 is a continuation of application No. 16/381,026, filed on Apr. 11, 2019, granted, now 10,904,910, issued on Jan. 26, 2021.
Claims priority of provisional application 62/656,827, filed on Apr. 12, 2018.
Prior Publication US 2023/0108837 A1, Apr. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/1273 (2023.01); H04W 4/90 (2018.01); H04W 68/02 (2009.01); H04W 72/23 (2023.01)
CPC H04W 72/1273 (2013.01) [H04W 68/02 (2013.01); H04W 72/23 (2023.01); H04W 4/90 (2018.02)] 18 Claims
OG exemplary drawing
 
1. A method performed by a base station (BS) for a system information (SI) modification procedure, the method comprising:
transmitting, to a user equipment (UE), downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a paging radio network temporary identifier (P-RNTI), the DCI including an SI modification bit and a public warning system (PWS) notification bit, wherein:
the DCI enables the UE to perform an SI acquisition procedure in a case that the SI modification bit is set, and
the DCI enables the UE to acquire at least one of an earthquake and tsunami warning system (ETWS) notification and a commercial mobile alert system (CMAS) notification immediately after the UE determines that the PWS notification bit is set.