US 12,250,621 B2
Method for improved roaming of a limited-bandwidth user equipment
Dong Chen, La Ciotat (FR); Volker Breuer, Boetzow (DE); and Xu Zhu, La Ciotat (FR)
Assigned to Telit Cinterion Deutschland GmbH, Munich (DE)
Appl. No. 17/612,633
Filed by Telit Cinterion Deutschland GmbH, Munich (DE)
PCT Filed Apr. 17, 2020, PCT No. PCT/EP2020/060872
§ 371(c)(1), (2) Date Nov. 19, 2021,
PCT Pub. No. WO2020/239324, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. PCT/CN2019/088795 (WO), filed on May 28, 2019.
Prior Publication US 2022/0248308 A1, Aug. 4, 2022
Int. Cl. H04W 4/00 (2018.01); H04W 8/04 (2009.01); H04W 48/16 (2009.01)
CPC H04W 48/16 (2013.01) [H04W 8/04 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of operating a user equipment operating in a cellular network different from the user equipment's home cellular network, the user equipment being configured to carry out, following a periodic home network scan cycle, a measurement attempt to the home cellular network, the user equipment operating in a reduced activity mode, comprising reduced measurement activity time periods,
the method comprising the steps of comparing the periodic home network scan cycle with the reduced activity mode's reduced measurement activity time period, and,
in case the periodic home network scan cycle is shorter than the reduced measurement activity time period, amending the periodic home network scan cycle.