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US 10,856,250 B2Granted
Method and system for transmission of SUSI in the NAS procedure
AssigneeNEC Corporation
InventorsKundan Tiwari, Toshiyuki Tamura, Sheeba Backia Mary Baskaran
Life of this patent
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Abstract
The present disclosure is related to sending of a one time identifier of a UE during the NAS procedure. Specifically, the present disclosure relates to determining whether to use same one time identifier or different one time identifier during registration retry procedure.
Claims28
A method for a user equipment (UE), the method comprising:
- initiating an initial registration procedure by sending a first registration request message to a core network node, the first registration request message including a first subscription concealed identifier (SUCI), wherein the first SUCI is based on a subscription permanent identifier (SUPI);
- starting a first timer and a second timer based on sending the first registration request message;
- starting a third timer based on expiry of the first timer;
- and
- reinitiating the initial registration procedure by sending a second registration request message to the core network node based on expiry of the third timer,
- wherein the second registration request message includes the first SUCI in a case where the second timer is running,
- wherein the second registration request message includes a second SUCI based on the SUPI in a case where the second timer is not running, and
- wherein the second SUCI is different from the first SUCI.
5 more elements
A User Equipment (UE) comprising:
- a memory;
- and
- at least one hardware processor coupled to the memory,
- wherein the at least one hardware processor is configured to:
- initiate an initial registration procedure by sending a first registration request message to a core network node, the first registration request message including a first subscription concealed identifier (SUCI), wherein the first SUCI is based on a subscription permanent identifier (SUPI);
- start a first timer and a second timer based on sending the first registration request message;
- start a third timer based on expiry of the first timer;
- and
- reinitiate the initial registration procedure by sending a second registration request message to the core network node based on expiry of the third timer,
- wherein the second registration request message includes the first SUCI in a case where the second timer is running,
- wherein the second registration request message includes a second SUCI based on the SUPI in a case where the second timer is not running, and
- wherein the second SUCI is different from the first SUCI.
9 more elements
A method for a user equipment (UE), the method comprising:
- initiating a first initial registration procedure by sending a first registration request message to a core network node, the first registration request message including a first subscription concealed identifier (SUCI), wherein the first SUCI is based on a subscription permanent identifier (SUPI);
- starting a first timer and a second timer based on sending the first registration request message;
- starting a third timer based on expiry of the first timer;
- and
- reinitiating a second initial registration procedure by sending a second registration request message to the core network node based on expiry of the third timer,
- wherein the second registration request message includes the first SUCI in a case where the second timer is running,
- wherein the second registration request message includes a second SUCI based on the SUPI in a case where the second timer is not running, and
- wherein the second SUCI is different from the first SUCI.
5 more elements
A User Equipment (UE) comprising:
- a memory;
- and
- at least one hardware processor coupled to the memory;
- wherein the at least one hardware processor is configured to:
- initiate a first initial registration procedure by sending a first registration request message to a core network node, the first registration request message including a first subscription concealed identifier (SUCI), wherein the first SUCI is based on a subscription permanent identifier (SUPI);
- start a first timer and a second timer based on sending the first registration request message;
- start a third timer based on expiry of the first timer;
- and
- reinitiate a second initial registration procedure by sending a second registration request message to the core network node based on expiry of the third timer,
- wherein the second registration request message includes the first SUCI in a case where the second timer is running,
- wherein the second registration request message includes a second SUCI based on the SUPI in a case where the second timer is not running, and
- wherein the second SUCI is different from the first SUCI.
9 more elements
Dependencies are inferred from the claim text.