Enhancements on 5G session management (5GSM) handling of network rejection not due to congestion control
AssigneeMediatek Inc.
InventorsChien-Chun Huang-Fu, Bo-Hun Chen
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Abstract
A method for 5G Session Management (5GSM) handling of network rejection not due to congestion control is provided. A User Equipment (UE) receives a 5GSM reject message from a mobile communication network. The 5GSM reject message indicates a network rejection not due to congestion control. The UE associates a back-off timer with a Home Public Land Mobile Network (HPLMN) Single-Network Slice Selection Assistance Information (S-NSSAI). The UE prevents itself from sending a 5GSM request message for the same HPLMN S-NSSAI that is associated with the back-off timer.
Claims20
A method, comprising:
- receiving a 5G Session Management (5GSM) reject message from a mobile communication network by a User Equipment (UE), wherein the 5GSM reject message indicates a network rejection not due to congestion control;
- associating a back-off timer with a serving Home Public Land Mobile Network (HPLMN) Single-Network Slice Selection Assistance Information (S-NSSAI) or a mapped HPLMN S-NSSAI based on a register of the UE, wherein the serving HPLMN S-NSSAI is a serving part of a complete S-NSSAI and the mapped HPLMN S-NSSAI is a mapped part of the complete S-NSSAI;
- and
- preventing the UE from sending a 5GSM request message for the same HPLMN S-NSSAI that is associated with the back-off timer.
A User Equipment (UE), comprising:
- a wireless transceiver, configured to perform wireless transmission and reception to and from a mobile communication network;
- and
- a controller, configured to receive a 5G Session Management (5GSM) reject message indicating a network rejection not due to congestion control from the mobile communication network via the wireless transceiver, associate a back-off timer with a serving Home Public Land Mobile Network (HPLMN) Single-Network Slice Selection Assistance Information (S-NSSAI) or a mapped HPLMN S-NSSAI based on a register of the UE, and prevent the UE from sending a 5GSM request message for the same HPLMN S-NSSAI that is associated with the back-off timer, wherein the serving HPLMN S-NSSAI is a serving part of a complete S-NSSAI and the mapped HPLMN S-NSSAI is a mapped part of the complete S-NSSAI.
A method, comprising:
- sending a 5G Session Management (5GSM) request message to a mobile communication network by a User Equipment (UE), wherein the 5GSM request message is associated with a serving Home Public Land Mobile Network (HPLMN) Single-Network Slice Selection Assistance Information (S-NSSAI) or a mapped HPLMN S-NSSAI based on a register of the UE, wherein the serving HPLMN S-NSSAI is a serving part of a complete S-NSSAI, the mapped HPLMN S-NSSAI is a mapped part of the complete S-NSSAI, and the serving HPLMN S-NSSAI or the mapped HPLMN S-NSSAI is associated with a back-off timer;
- receiving a 5GSM reject message from the mobile communication network, wherein the 5GSM reject message indicates a network rejection not due to congestion control;
- and
- preventing the UE from sending another 5GSM request message for the same HPLMN S-NSSAI in response to the 5GSM reject message.
Dependencies are inferred from the claim text.