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

Claim 13:
14. An apparatus comprising:
a non-transitory memory, configured to store computer executable program code; and
a processor, coupled to the non-transitory memory,
wherein the program code comprises instructions, and when the processor executes the instructions, the instructions cause the apparatus to perform the following operations:
receiving a second random number (RAND) from a mobility management network element, and generating a first RAND based on the second RAND and a first key;
obtaining 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 a first registration request message to an access network device, wherein the first registration request message comprises the first slice selection assistance information.