US 12,256,357 B2
Multi-SIM UE capability indications and band conflict resolution
Sethuraman Gurumoorthy, San Jose, CA (US); Srirang A. Lovlekar, Cupertino, CA (US); Fangli Xu, Beijing (CN); Haijing Hu, Beijing (CN); Naveen Kumar R. Palle Venkata, San Diego, CA (US); Sarma V. Vangala, Campbell, CA (US); Yuqin Chen, Shenzhen (CN); Zhibin Wu, Los Altos, CA (US); Longda Xing, San Jose, CA (US); Rama Diwakara Rao Noolu, Fremont, CA (US); and Birgit Breining, Munich (DE)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/441,834
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Mar. 31, 2021, PCT No. PCT/CN2021/084420
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2022/205072, PCT Pub. Date Oct. 6, 2022.
Prior Publication US 2022/0361132 A1, Nov. 10, 2022
Int. Cl. H04W 60/00 (2009.01); H04W 68/00 (2009.01)
CPC H04W 60/005 (2013.01) [H04W 68/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A user equipment (UE) device, the UE device comprising:
a radio, comprising one or more antennas for performing wireless communications;
a processor operatively coupled to the radio; and
first and second subscriber identity modules (SIMs), wherein each of the first SIM and the second SIM is coupled to the radio and configured to be used with the radio for the wireless communications;
wherein the UE device is configured to, using the first SIM:
transmit a registration request message to a first network via a base station, wherein the registration request message comprises one or more UE capability indications;
receive a registration accept message from the base station, wherein the registration accept message comprises one or more network capability indications corresponding to respective UE capability indications of the one or more UE capability indications, wherein the one or more network capability indications further comprise an indication that the network supports providing a paging cause indicator with paging messages;
receive, by the UE device, a paging message from the base station including the paging cause indicator indicating whether the paging message is for a packet-switched voice call;
receive, by the UE device, a second paging message from the base station, wherein the second paging message does not include the paging cause indicator, and
determining, based on an absence of the paging cause indicator in the second paging message and on the registration accept message comprising the one or more network capability indications comprising an indication that the network supports providing a paging cause indicator with paging messages, that the second paging message is not for the packet-switched voice call.