	US 12,267,909 B2
	User equipment operating as relay via a sidelink connection
Zhibin Wu, Los Altos, CA (US); Adesh Kumar, San Jose, CA (US); Dawei Zhang, Saratoga, CA (US); Fangli Xu, Beijing (CN); Haijing Hu, Los Gatos, CA (US); Naveen Kumar R. Palle Venkata, San Diego, CA (US); Sethuraman Gurumoorthy, San Ramon, CA (US); Srirang A. Lovlekar, Fremont, CA (US); Sudeep Manithara Vamanan, Nuremberg (DE); and Yuqin Chen, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,591
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Jul. 24, 2020, PCT No. PCT/CN2020/104477 § 371(c)(1), (2) Date Sep. 21, 2021, PCT Pub. No. WO2022/016517, PCT Pub. Date Jan. 27, 2022.
Prior Publication US 2022/0303749 A1, Sep. 22, 2022
Int. Cl. H04W 8/00 (2009.01); H04W 16/28 (2009.01); H04W 24/08 (2009.01); H04W 24/10 (2009.01); H04W 88/04 (2009.01); H04W 92/18 (2009.01)

CPC H04W 8/005 (2013.01) [H04W 16/28 (2013.01); H04W 24/08 (2013.01); H04W 24/10 (2013.01); H04W 88/04 (2013.01); H04W 92/18 (2013.01)]

20 Claims

1. A method, comprising:

at a first user equipment (UE):

determining that a predetermined condition is satisfied, the predetermined condition associated with the first UE operating as a layer 2 (L2) UE-to-network relay for a second UE and comprising at least one or more access stratum (AS) layer based conditions, wherein the L2 UE-to-network relay comprises a Uu interface between the first UE and a base station and a PC5 interface between the first UE and the second UE;

transmitting a sidelink discovery message, in response to determining that the predetermined condition is satisfied; and

monitoring for a signal from the second UE in response to the discovery message.