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EP-4740642-A1 - A SYSTEM AND METHOD FOR NETWORK INITIATED DE-REGISTRATION PROCESS FOR A USER EQUIPMENT TO ENABLE RECOVERY PROCEDURE

EP4740642A1EP 4740642 A1EP4740642 A1EP 4740642A1EP-4740642-A1

Abstract

A system and a method for network initiated de-registration process for a User Equipment (UE) (102) to enable recovery procedure is described The method comprises registering the UE (102) with an Access and Mobility Management Function (AMF) (125) based on a request received from the UE (102). The method further comprises receiving a connection state request, sent by the UE (102), at the AMF (125). The method further comprises releasing the connection between the AMF (125) and the UE (102), using a release procedure. The method further comprises receiving an idle state response at the AMF (125) sent by the UE (102). The idle state response is sent corresponding to a data operation request that is Mobile Originated (MO) or Mobile Terminated (MT). A network procedure is initiated by the AMF (125) based on the idle state response received from the UE (102).

Inventors

  • BHATNAGAR, AAYUSH
  • BISHT, BIRENDRA
  • Singh, Harbinder Pal
  • GUPTA, AMIT K
  • Bhatt, Naresh
  • Vedma, Jayakrishna
  • MISHRA, SOMYA
  • SHARMA, Smridhi

Assignees

  • Jio Platforms Limited

Dates

Publication Date
20260513
Application Date
20240626

Claims (18)

  1. 1. A method for network initiated de-registration process for a user equipment (UE) (102) to enable recovery procedure, the method comprising the steps of: registering, by one or more processor (205), the UE (102) with an Access and Mobility Management Function (AMF) (125) based on a request received from the UE (102); receiving, by the one or more processor (205), a connection state request at the AMF (125), wherein the connection state request is sent by the UE (102); releasing, by the one or more processor (205), the connection between the AMF (125) and the UE (102), using a release procedure; receiving, by the one or more processor (205), an idle state response at the AMF (125) sent by the UE (102), wherein the idle state response is sent corresponding a data operation request that is Mobile Originated (MO) or Mobile Terminated (MT); and initiating, by the one or more processor (205), a network procedure by the AMF (125) based on the idle state response received from the UE (102).
  2. 2. The method as claimed in claim 1 , wherein receiving the idle state response by the one or more processor (205) comprises at least one of Mobility Request (MR), Periodic registration Request (PR), Scheduling Request (SR), and Deregistration (DeReg) response.
  3. 3. The method as claimed in claim 1, wherein initiating, by the one or more processor (205), the network procedure comprises a re-authentication procedure initiated by the AMF (125) when the idle state response is MR/PR, or the network procedure is a re-registration procedure initiated by the AMF (125) when the idle state response is SR.
  4. 4. The method as claimed in claim 1, wherein the method further comprises, sending, by the one or more processor (205), a paging message by the AMF (125) to the UE (102) when the data operation request is MT.
  5. 5. The method as claimed in claim 1 , wherein receiving the connection state request comprises performing, by the one or more processor (205), integrity check procedures to detect a packet loss, or a packet sequence mismatch between the UE (102) and the AMF (125).
  6. 6. The method as claimed in claim 1 , wherein releasing, comprises transmitting, by the one or more processor (205), a release command to a Radio Access Network (RAN) device (402), wherein the RAN device (402) is configured to send a Radio Resource Control (RRC) release command to the UE (102).
  7. 7. The method as claimed in claim 6, wherein releasing, comprises terminating, by the one or more processor (205), connection to the UE (102), further once the connection is terminated, the RAN device (402) transmits a release complete message to the AMF (125).
  8. 8. The method as claimed in claim 1, wherein subsequent to receiving, the connection state request, the one or more processor (205) is configured for transmitting protocol data units (PDUs) or data packets to the AMF (125) from the UE (102).
  9. 9. A system for network initiated de -registration process for a user equipment (UE) to enable recovery procedure, the system comprising: a registering unit (230) configured to register the User Equipment (UE) (102) with an Access and Mobility Management Function (AMF) (125) based on a request received from the UE (102); a transceiver unit (235) configured to receive a connection state request at the AMF (125), wherein the connection state request is sent by the UE (102); a releasing unit (240) configured to release connection between the AMF (125) and the UE (102), using a release procedure; a transceiver unit (250) configured to receive an idle state response at the AMF (125) sent by the UE (102), wherein the idle state response is sent corresponding to a data operation request that is Mobile Originated (MO) or Mobile Terminated (MT); and an initiating unit (255) configured to initiate a network procedure by the AMF (125) based on the idle state response received from the UE (102).
  10. 10. The system as claimed in claim 9, wherein receiving the idle state response by the transceiver unit (250) comprises at least one of Mobility Request (MR), Periodic registration Request (PR), Scheduling Request (SR), and Deregistration (DeReg) responses.
  11. 11. The system as claimed in claim 9, wherein initiating the network procedure comprises a re-authentication procedure initiated by the AMF (125) when the idle state response is MR/PR, or the network procedure is a re-registration procedure initiated by the AMF (125) when the idle state response is SR.
  12. 12. The system as claimed in claim 9, further comprises a paging unit (245) configured to send a paging message from the AMF (125) to the UE (102) when the data operation request is MT.
  13. 13. The system as claimed in claim 9, wherein receiving the connection state request comprises performing integrity check procedures to detect a packet loss, or a packet sequence mismatch between the UE (102) and the AMF (125).
  14. 14. The system as claimed in claim 9, wherein releasing by the releasing unit (240), comprises transmitting, a release command to a Radio access network (RAN) device (402), wherein the RAN device (402) is configured to send a Radio Resource Control (RRC) release command to the UE (102).
  15. 15. The system as claimed in claim 14, wherein releasing, comprises terminating, connection to the UE (102), further once the connection is terminated, the RAN device (402) transmits a release complete message to the AMF (125).
  16. 16. The system as claimed in claim 9, wherein subsequent to receiving, the connection state request, the transceiver (250) is configured for transmitting protocol data units (PDUs) or data packets to the AMF (125) from the UE (102).
  17. 17. A network operated equipment (102) comprising: one or more primary processors (305) communicatively coupled to one or more processors (205), the one or more primary processors (305) coupled with a memory (310), wherein said memory (310) stores instructions which when executed by the one or more primary processors (205) causes the network operated equipment (102) to: transmit, a registration request to the one or more processers (205), the registration request enables sending a connection state request and initiating a network procedure, wherein the one or more processors (205) is configured to perform the steps as claimed in claim 1.
  18. 18. A non-transitory computer-readable medium having stored thereon computer- readable instructions that, when executed by a processor, cause the processor to: register the User Equipment (UE) (102) with an Access and Mobility Management Function (AMF) (125) based on a request received from the UE (102); receive a connection state request at the AMF (125), wherein the connection state request is sent by the UE (102); release connection between the AMF (125) and the UE (102), using a release procedure; receive an idle state response at the AMF (125) sent by the UE (102), wherein the idle state response is sent corresponding to a data operation request that is Mobile Originated (MO) or Mobile Terminated (MT); and initiate a network procedure by the AMF (125) based on the idle state response received from the UE (102).

Description

A SYSTEM AND METHOD FOR NETWORK INITIATED DE-REGISTRATION PROCESS FOR A USER EQUIPMENT TO ENABLE RECOVERY PROCEDURE FIELD OF THE INVENTION [0001] The present subject matter relates to communication procedures in communication networks including cellular communication networks and, more particularly, to integrity failure and recovery procedures in a communication network. BACKGROUND OF THE INVENTION [0002] The Registration procedure is a vital step in 5G networks where the User Equipment (UE) establishes initial access and connectivity with the core network by registering itself with the Access and Mobility Management Function (AMF). During registration, the UE provides essential information like identity, location, capabilities, and authentication credentials to the AMF. The AMF verifies these credentials and authorizes the UE's network access, enabling the establishment of a connection with the 5G core network. This connection allows the UE to engage in subsequent communication and access various services, indicating that the UE is in a connected state. [0003] In the connected state, the UE transmits multiple data packets to the AMF for processing. Upon receiving a data packet, the AMF performs an integrity check on the packet. If the integrity check passes, the packet proceeds for further processing. However, if an integrity failure occurs and the check fails, indicating potential data corruption or tampering, the AMF discards the packet to prevent the propagation of compromised data throughout the network. One drawback is that in conventional integrity failure mechanisms, the UE may be configured to attempt a predetermined number of retransmissions to recover from the failure. This approach can be timeconsuming, especially when a large number of retransmissions are attempted, leading to increased signaling overhead and related costs in the communication network. [0004] Thus, there is a need for a solution which addresses the above mentioned shortcomings. SUMMARY OF THE INVENTION [0005] One or more embodiments of the present disclosure provide a system and method for performing recovery in a telecommunication network. [0006] In one aspect of the present invention, a system for network initiated deregistration process for a user equipment (UE) to enable recovery procedure is disclosed. The system includes a registering unit configured to register the User Equipment (UE) with an Access and Mobility Management Function (AMF) based on a request received from the UE. The system further includes a transceiver unit configured to receive a connection state request at the AMF. The connection state request is sent by the UE. The system further includes a releasing unit configured to release connection between the AMF and the UE, using a release procedure. The system further includes the transceiver unit configured to receive an idle state response at the AMF sent by the UE. The idle state response is sent corresponding to a data operation request that is Mobile Originated (MO) or Mobile Terminated (MT). The system further includes an initiating unit configured to initiate a network procedure by the AMF based on the idle state response received from the UE. [0007] In one aspect, receiving the idle state response by the receiving unit comprises at least one of Mobility Request (MR), Periodic registration Request (PR), Scheduling Request (SR), and Deregistration (DeReg) responses. Initiating the network procedure comprises a re-authentication procedure initiated by the AMF when the idle state response is MR/PR, or the network procedure is a re-registration procedure initiated by the AMF when the idle state response is SR. The system further comprises a paging unit configured to send a paging message from the AMF to the UE when the data operation request is MT. Receiving the connection state request comprises performing integrity check procedures to detect a packet loss, or a packet sequence mismatch between the UE and the AMF. Releasing, by the releasing unit, comprises transmitting a release command to a Radio access network (RAN) device. The RAN device is configured to send a Radio Resource Control (RRC) release command to the UE. Releasing comprises terminating connection to the UE, further once the connection is terminated, the RAN device transmits a release complete message to the AMF. Subsequent to receiving, the connection state request, the transceiver is configured for transmitting protocol data units (PDUs) or data packets to the AMF from the UE. [0008] In another aspect of the present invention, a method for network initiated deregistration process for a user equipment (UE) to enable recovery procedure is disclosed. The method includes the step of registering the UE with an Access and Mobility Management Function (AMF) based on a request received from the UE. The method further includes the step of receiving a connection state request at the AMF. The connection state request is sent by the UE. The metho