	US 12,192,757 B2
	Methods and devices for protecting privacy of slice identity information
Wantao Yu, Shenzhen (CN); Yuze Liu, Shenzhen (CN); Shilin You, Shenzhen (CN); Jin Peng, Shenzhen (CN); and Zhaoji Lin, Shenzhen (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Filed by ZTE Corporation, Shenzhen (CN)
Filed on May 6, 2022, as Appl. No. 17/738,279.
Application 17/738,279 is a continuation of application No. PCT/CN2019/116676, filed on Nov. 8, 2019.
Prior Publication US 2022/0264289 A1, Aug. 18, 2022
Int. Cl. H04W 12/02 (2009.01); H04W 8/02 (2009.01); H04W 12/08 (2021.01); H04W 60/04 (2009.01); H04W 72/21 (2023.01); H04W 76/10 (2018.01)

CPC H04W 12/02 (2013.01) [H04W 8/02 (2013.01); H04W 12/08 (2013.01); H04W 60/04 (2013.01); H04W 72/21 (2023.01); H04W 76/10 (2018.02)]

15 Claims

1. A method for wireless communication, comprising:

protecting privacy of a transmitted network slice selection assistance information (NSSAI) between a user equipment and a base station by performing:

receiving a temporary NSSAI (T-NSSAI) from an access and mobility management function (AMF) to the base station, the T-NSSAI comprising at least one temporary single NSSAI (T-S-NSSAI);

storing the T-NSSAI in the base station;

receiving a radio resource control (RRC) signaling message from the user equipment to the base station, the RRC signaling message comprising a T-S-NSSAI corresponding to an allowed single NSSAI (S-NSSAI);

selecting the AMF based on the T-S-NSSAI;

receiving a registration accept message during an initial registration procedure from the AMF to the base station, the registration accept message comprising a mapping relationship between at least one allowed S-NSSAI and at least one T-S-NSSAI; and

sending the mapping relationship between at least one allowed S-NSSAI and at least one T-S-NSSAI from the base station to the user equipment so that the user equipment stores the mapping relationship between the at least one allowed S-NSSAI and the at least one T-S-NSSAI.