5g-guti deletion time considering registration status over accesses
AssigneeMediatek Inc.
InventorsYUAN-CHIEH Lin, Yu-Hsin Lin
Life of this patent
Estimating the term…
Abstract
When a UE is registered to the same PLMN or SNPN over 3GPP and non-3GPP access, the UE and the AMF maintain one 5G-GUTI that is common to both 3GPP and non-3GPP access. When the UE is required to re-register to the network, the UE follows the procedures of deregister over both accesses, delete the common shared 5G-GUTI, and re-register over both accesses. The UE needs to perform the above procedures in a graceful sequence. In one novel aspect, the UE triggers the re-registration (either over 3GPP or non-3GPP access) after the completion of deregistration over both 3GPP and non-3GPP access. In addition, the UE deletes the common 5G-GUTI only after the completion of deregistration over both 3GPP and non-3GPP access.
Claims18
A method, comprising:
- (a) registering to a public land mobile network or a standalone non-public network (PLMN/SNPN) by a user equipment (UE) in a 5G network, wherein the UE is registered to the same PLMN/SNPM over a first access type and a second access type;
- (b) determining that a condition for triggering re-registration is satisfied;
- (c) performing a first de-registration over the first access type and a second de-registration over the second access type;
- and
- (d) performing a first registration over the first access or a second registration over the second access type or both, after both the first de-registration and the second de-registration in (c) are completed.
A User Equipment (UE), comprising:
- a registration handling circuit that registers to a public land mobile network or a standalone non-public network (PLMN/SNPN) in a 5G network, wherein the UE is registered to the same PLMN/SNPM over a first access type and a second access type;
- a control circuit that determines that a condition for triggering re-registration is satisfied;
- and
- a de-registration handling circuit that performs a first de-registration over the first access type and a second de-registration over the second access type, wherein the UE performs a first registration over the first access or a second registration over the second access type or both, after both the first de-registration and the second de-registration are completed.
A method comprising:
- (a) registering to a public land mobile network or a standalone non-public network (PLMN/SNPN) by a user equipment (UE) in a 5G network, wherein the UE is registered to the same PLMN/SNPM over a first access type and a second access type;
- (b) determining that a condition for triggering re-registration is satisfied;
- (c) performing a first de-registration over the first access type and a second de-registration over the second access type;
- (d) deleting a common 5G-GUTI after both the first de-registration and the second de-registration in (c) are completed;
- and
- (e) performing a first registration over the first access or a second registration over the second access type or both, after the common 5G-GUTI is deleted in (d).
Dependencies are inferred from the claim text.