METHOD FOR REGISTERING TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR
First Claim
1. A method of registering a user equipment (UE) in a wireless communication system, the method comprising:
- transmitting a registration request message to an access and mobility management function (AMF), wherein the registration request message comprises a requested network slice selection assistance information (NSSAI), and wherein the requested NSSAI comprises at least one single NSSAI (S-NSSAI) corresponding to a network slice with which the UE requests to register; and
receiving, from the AMF, a registration accept message in response to the registration request message,wherein based on the AMF rejecting an S-NSSAI among the at least one S-NSSAI in the requested NSSAI;
the registration accept message comprises (i) information regarding the rejected S-NSSAI, and (ii) a rejection cause for the rejected S-NSSAI, andthe method further comprises;
storing the rejected S-NSSAI in a rejected NSSAI based on the rejection cause; and
attempting to use the stored rejected S-NSSAI based on (i) the rejection cause being that the stored rejected S-NSSAI is not available in a current registration area, and (ii) the UE leaving the current registration area.
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Accused Products
Abstract
A registration method of a user equipment (UE) in a wireless communication system is disclosed. The registration method includes transmitting a registration request message to an access and mobility management function (AMF), wherein the registration request message includes requested network slice selection assistance information (NSSAI) including single (S)-NSSAI corresponding to a network slice to which the UE intends to register with; and receiving, from the AMF, a registration accept message as a response to the registration request message, wherein if at least one of the S-NSSAI included in the requested NSSAI is rejected by the AMF, the registration accept message includes the rejected S-NSSAI and a reason for refusal for the rejected S-NSSAI.
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Citations
22 Claims
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1. A method of registering a user equipment (UE) in a wireless communication system, the method comprising:
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transmitting a registration request message to an access and mobility management function (AMF), wherein the registration request message comprises a requested network slice selection assistance information (NSSAI), and wherein the requested NSSAI comprises at least one single NSSAI (S-NSSAI) corresponding to a network slice with which the UE requests to register; and receiving, from the AMF, a registration accept message in response to the registration request message, wherein based on the AMF rejecting an S-NSSAI among the at least one S-NSSAI in the requested NSSAI; the registration accept message comprises (i) information regarding the rejected S-NSSAI, and (ii) a rejection cause for the rejected S-NSSAI, and the method further comprises; storing the rejected S-NSSAI in a rejected NSSAI based on the rejection cause; and attempting to use the stored rejected S-NSSAI based on (i) the rejection cause being that the stored rejected S-NSSAI is not available in a current registration area, and (ii) the UE leaving the current registration area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A user equipment (UE) configured to perform a registration procedure in a wireless communication system, the UE comprising:
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a transceiver; at least one processor; and at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising; transmitting a registration request message through the transceiver to an access and mobility management function (AMF), wherein the registration request message comprises a requested network slice selection assistance information (NSSAI), and wherein the requested NSSAI comprises at least one single NSSAI (S-NSSAI) corresponding to a network slice with which the UE requests to register; and receiving, from the AMF through the transceiver, a registration accept message in response to the registration request message, wherein based on the AMF rejecting an S-NSSAI among the at least one S-NSSAI in the requested NSSAI; the registration accept message comprises (i) information regarding the rejected S-NSSAI, and (ii) a rejection cause for the rejected S-NSSAI, and the operations further comprise; storing the rejected S-NSSAI in a rejected NSSAI based on the rejection cause; and attempting to use the stored rejected S-NSSAI based on (i) the rejection cause being that the stored rejected S-NSSAI is not available in a current registration area, and (ii) the UE leaving the current registration area. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification