US 12,501,331 B2
Method for selecting target relay UE, network device and UE
Huiying Zhang, Beijing (CN); Yali Zhao, Beijing (CN); and Hao Xu, Beijing (CN)
Assigned to Datang Mobile Communications Equipment Co., Ltd., Beijing (CN)
Appl. No. 18/261,929
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Dec. 20, 2021, PCT No. PCT/CN2021/139795
§ 371(c)(1), (2) Date Jul. 18, 2023,
PCT Pub. No. WO2022/151926, PCT Pub. Date Jul. 21, 2022.
Claims priority of application No. 202110065152.X (CN), filed on Jan. 18, 2021.
Prior Publication US 2024/0306059 A1, Sep. 12, 2024
Int. Cl. H04W 88/04 (2009.01); H04W 36/00 (2009.01); H04W 36/30 (2009.01); H04W 84/04 (2009.01)
CPC H04W 36/033 (2023.05) [H04W 36/0061 (2013.01); H04W 36/00835 (2018.08); H04W 36/304 (2023.05); H04W 84/042 (2013.01); H04W 88/04 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for selecting a target relay UE, performed by a network device, the method comprising:
acquiring a candidate relay UE list of a remote UE and a public land mobile network (PLMN) list;
determining a target relay set by performing an access/handover decision on each candidate relay UE in the candidate relay UE list based on the PLMN list; and
selecting a target relay UE from the target relay set;
wherein acquiring the PLMN list comprises:
acquiring a relay service PLMN list of each candidate relay UE in the candidate relay UE list and/or a relay access PLMN list of the remote UE; or
acquiring a PLMN lists of a serving base station of each candidate relay UE in the candidate relay UE list;
wherein in response to the acquired PLMN list being the PLMN list of the serving base station of each candidate relay UE, determining the target relay set by performing the access/handover decision on each candidate relay UE in the candidate relay UE list based on the PLMN list comprises:
determining whether a PLMN list of a serving base station of a candidate relay UE overlaps the relay access PLMN list of the remote UE; and
in response to the PLMN list of the serving base station of the candidate relay UE overlapping the relay access PLMN list of the remote UE, adding the candidate relay UE to the target relay set.