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EP-4740631-A1 - METHOD AND SYSTEM FOR PERFORMING NETWORK REGISTRATION IN A WIRELESS COMMUNICATION NETWORK

EP4740631A1EP 4740631 A1EP4740631 A1EP 4740631A1EP-4740631-A1

Abstract

The present disclosure relates to method and system for performing network registration in a wireless communication network The present disclosure encompasses: receiving, at a network node from a user equipment (UE) [102], a registration request for establishment of a connection between the UE [102] and a first network; authenticating, by the network node, an identity of the UE [102] based on a communication with an authentication network node for the received registration request; receiving, at the network node, a registration reject message from the authentication network node based on a failure of the authentication of the identity of the UE [102]; mapping, by the network node, the registration reject message with a plurality of error codes to identify an error cause code; and transmitting, by the network node, the registration reject message to the UE [102] along with the identified error cause code.

Inventors

  • BHATNAGAR, AAYUSH
  • Bisht, Birendra Singh
  • RAJESH, Durgesh
  • Banka, Venkatakrishna
  • DEVAL, Sunny
  • BEHERA, Dilip
  • RAJU, Neha
  • GOURH, Santosh
  • KUMAR, PRADEEP
  • SINGH, MUKESH
  • NATALI, Fenil
  • MUKHERJEE, KOUSHIK
  • EDAKKARA, Jim
  • Ghag, Arpita Jaywant
  • BHATTACHARYA, Dipanjan
  • KUMAR, SANDEEP
  • Singh, Harbinder Pal

Assignees

  • Jio Platforms Limited

Dates

Publication Date
20260513
Application Date
20240611

Claims (17)

  1. 1. A method implemented by a network node, the method comprising: receiving, at the network node from a user equipment (UE) [102], a registration request for establishment of a connection between the UE [102] and a first network; authenticating, by the network node, an identity of the UE [102] based on a communication with an authentication network node for the received registration request; receiving, at the network node, a registration reject message from the authentication network node based on a failure of the authentication of the identity of the UE [102]; mapping, by the network node, the registration reject message with a plurality of error codes to identify an error cause code; and transmitting, by the network node, the registration reject message to the UE [102] along with the identified error cause code.
  2. 2. The method as claimed in claim 1, wherein the network node is an Access and Mobility Management Function (AMF) associated with the first network, wherein the first network is a 5th Generation (5G) network.
  3. 3. The method as claimed in claim 1, wherein the authentication network node corresponds to an Authentication Server Function (AUSF) [112] associated with the first network.
  4. 4. The method as claimed in claim 1, wherein the registration reject message comprises at least one of a plurality of HTTP failure cause codes.
  5. 5. The method as claimed in claim 1, wherein the plurality of error codes corresponds to Non- Access Stratum (NAS) cause codes associated with the registration reject message.
  6. 6. The method as claimed in claim 1, wherein the error cause code corresponds to nonallowance of N1 mode by the first network.
  7. 7. The method as claimed in claim 1, wherein the registration request is received from the UE [102] enabled with a subscriber identity module (SIM) configured to operate on a second network.
  8. 8. The method as claimed in claim 7, wherein the transmission of the registration reject message to the UE [102] along with the identified error cause code indicates the UE [102] to disable N 1 mode and attempt to establish a connection with the second network, wherein the second network is a 4th Generation (4G) network.
  9. 9. A network node comprising: a receiving unit [202] configured to receive, from a user equipment (UE) [102], a registration request for establishment of a connection between the UE [102] and a first network; an authentication unit [204] configured to authenticate an identity of the UE [102] based on a communication with an authentication network node for the received registration request; the receiving unit [202] configured to receive a registration reject message from the authentication network node based on a failure of the authentication of the identity of the UE [102]; a mapping unit [206] configured to map the registration reject message with a plurality of error codes to identify a corresponding error cause code; and a transmitting unit [208] configured to transmit the registration reject message to the UE [102] along with the identified error cause code.
  10. 10. The network node as claimed in claim 9, wherein the network node is an Access and Mobility Management Function (AMF) associated with the first network, wherein the first network is a 5 th Generation (5G) network.
  11. 11. The network node as claimed in claim 9, wherein the authentication network node corresponds to an Authentication Server Function (AUSF) 112 associated with the first network.
  12. 12. The network node as claimed in claim 9, wherein the registration reject message comprises at least one of a plurality of HTTP failure cause codes.
  13. 13. The network node as claimed in claim 9, wherein the plurality of error codes corresponds to Non-Access Stratum (NAS) cause codes associated with the registration reject message.
  14. 14. The network node as claimed in claim 9, wherein the error cause code corresponds to nonallowance of N1 mode by the first network.
  15. 15. The network node as claimed in claim 9, wherein the registration request is received from the UE [102] enabled with a subscriber identity module (SIM) configured to operate on a second network.
  16. 16. The network node as claimed in claim 15, wherein the transmission of the registration reject message to the UE [102] along with the identified error cause code indicates the UE [102] to disable N1 mode and attempt to establish a connection with the second network, wherein the second network is a 4 th Generation (4G) network.
  17. 17. A non-transitory computer-readable storage medium storing instruction, the storage medium comprising executable code which, when executed by one or more units of a system, causes: a receiving unit [202] to receive, from a user equipment (UE) [102], a registration request for establishment of a connection between the UE [102] and a first network; an authentication unit [204] to authenticate an identity of the UE [102] based on a communication with an authentication network node for the received registration request; the receiving unit [202] to receive a registration reject message from the authentication network node based on a failure of the authentication of the identity of the UE [102]; a mapping unit [206] to map the registration reject message with a plurality of error codes to identify a corresponding error cause code; and a transmitting unit [208] to transmit the registration reject message to the UE [102] along with the identified error cause code.

Description

METHOD AND SYSTEM FOR PERFORMING NETWORK REGISTRATION IN A WIRELESS COMMUNICATION NETWORK FIELD OF THE DISCLOSURE The present disclosure relates generally to the field of network registration. More particularly, the present invention relates to method and system for configurable error mapping for network registration in a wireless communication system. BACKGROUND The following description of related art is intended to provide background information pertaining to the field of the disclosure. This section may include certain aspects of the art that may be related to various features of the present disclosure. However, it should be appreciated that this section be used only to enhance the understanding of the reader with respect to the present disclosure, and not as admissions of prior art. In existing systems, one of the significant issues that exists is the prolonged periods during which devices remain deregistered after receiving registration rejection messages from the 5G network. This occurs due to the lack of proper mechanisms to handle registration failures for 4G only SIMs in 5G networks. As a result of prolonged deregistration periods, users experience disrupted connectivity, leading to a poor user experience. Devices (such as User Equipment(s)) are unable to perform a quick transition to a compatible network (such as 4G) after being rejected by the 5G network, resulting in a loss of network access and service disruptions. The existing method or system often lacks clarity in the reasons for registration rejection, making it difficult for devices to understand the cause of the failure and take appropriate corrective actions. This lack of transparency further exacerbates the issue of prolonged deregistration. The inability of devices to quickly switch between networks following a registration rejection leads to inefficient utilization of network resources. This inefficiency can strain network capacity and impact overall network performance. In some cases, the existing method and systems may not adequately address security concerns during the registration process, particularly when authenticating the identity of devices attempting to connect to the network. This can pose risks to network integrity and user privacy. Therefore, in light of the foregoing discussion, there exists a need for an improved method and system that can effectively handle the registration of 4G only SIMs in 5G networks, ensuring seamless connectivity, efficient network resource utilization, and enhanced security, without causing prolonged deregistration periods and ensuring continuous connectivity for the users. OBJECTS OF THE INVENTION Some of the objects of the present disclosure, which at least one embodiment disclosed herein satisfies are listed herein below. It is an object of the present invention to provide a system and method configurable error mapping for network registration in a wireless communication system. It is another object of the present invention to provide a system and method configurable error mapping for network registration in a wireless communication system that prevent devices with 4G only SIMs from remaining in a deregistered state for an extended period when they receive rejections from the 5G network due to the absence of user data provisioning in the 5G Authentication Server Function/User Data Management (AUSF/UDM). This aims to ensure that the device or user equipment (UE) can quickly attempt to connect to a 4G network instead of waiting for long durations. It is yet another object of the present invention to provide a system and method configurable error mapping for network registration in a wireless communication system that ensure seamless connectivity for users by enabling devices to swiftly transition to a 4G network in the event of a registration rejection from the 5G network. This is particularly important for users who rely on continuous network access for their communication and data needs. It is yet another object of the present invention to provide a system and method configurable error mapping for network registration in a wireless communication system that provides flexibility in mapping HTTP error codes received from the AUSF/UDM to specific NAS (Non-Access Stratum) cause codes. This flexibility allows the network to dynamically adjust its response based on different scenarios and error codes, thereby enhancing the adaptability of the network to various registration challenges. It is yet another object of the present invention to provide a system and method configurable error mapping for network registration in a wireless communication system that by reducing the time that devices spend in a deregistered state, the invention aims to enhance the overall efficiency and performance of the network. This can lead to improved network resource management and a better allocation of network capacity to active users. It is yet another object of the present invention to provide a system and metho