Patent ID: 11956715
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, comprising:
receiving, by an apparatus, a second random number (RAND) from a mobility management network element, and generating, by the apparatus, a first RAND based on the second RAND and a first key;
obtaining, by the apparatus, first slice selection assistance information and second slice selection assistance information, wherein the first slice selection assistance information is obtained by encrypting the second slice selection assistance information using a first function and the first RAND, and the second slice selection assistance information is selection assistance information of a slice the apparatus is allowed to access; and
sending, by the apparatus, a first registration request message to an access network device, wherein the first registration request message comprises the first slice selection assistance information.