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EP-4740632-A1 - METHOD AND SYSTEM FOR ROUTING THE REGISTRATION REQUEST IN A WIRELESS NETWORK

EP4740632A1EP 4740632 A1EP4740632 A1EP 4740632A1EP-4740632-A1

Abstract

The present disclosure relates to a method and a system for routing the registration request in a wireless network The method includes receiving, at a first network node [106A] from a User Equipment (UE) [102], the registration request for establishing a connection between the UE and a Core Network (CN), wherein the registration request comprises an identifier associated with the UE [102]; the method further includes analysing, by the first network node [106A], the identifier to extract a Routing Indicator (RI), wherein the RI indicates whether the registration request is to be processed by the first network node [106A]; and the method further includes processing, by the first network node [106A], the registration request based on the RI.

Inventors

  • SINGH, MUKESH
  • Bisht, Birendra Singh
  • KUMAR, AMIT
  • Bhatt, Naresh
  • Vedma, Jayakrishna
  • BHATNAGAR, AAYUSH
  • 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 (15)

  1. 1. A method for rerouting a registration request, the method comprising: receiving, at a first network node [106A] from a User Equipment (UE) [102], the registration request for establishing a connection between the UE and a Core Network (CN), wherein the registration request comprises an identifier associated with the UE [102]; analyzing, by the first network node [106A], the identifier to extract a Routing Indicator (RI), wherein the RI indicates whether the registration request is to be processed by the first network node [106A]; and processing, by the first network node [106A], the registration request based on the RI.
  2. 2. The method as claimed in claim 1, wherein processing the registration request comprises rerouting, by the first network node [106A], the registration request to a second network node [106B] of the CN when the RI indicates that the registration request is to be processed by the second network node [106B],
  3. 3. The method as claimed in claim 2, wherein the second network node [106B] is identified based on the RI.
  4. 4. The method as claimed in claim 1 , wherein the identifier is Subscriber Concealed Identifier (SUCI).
  5. 5. The method as claimed in claim 2 wherein the first network node [106A] is a first Access Mobility Function (AMF) and the second network node [106B] is a target AMF.
  6. 6. The method as claimed in claim 5, wherein rerouting the registration request to the target AMF is performed based on a comparison of a dedicated RI of the target AMF with the extracted RI of the identifier.
  7. 7. The method as claimed in claim 6, wherein comparison of the dedicated RI of the target AMF with the extracted RI of the identifier eliminates the step of independent communication with at least one authentication node, to decrease time for rerouting the registration request.
  8. 8. A system to reroute a registration request, the system comprising: a first network node [106A] comprising: a receiving unit [202] configured to receive from a User Equipment (UE) [102], the registration request for establishing a connection between the UE and a CN, wherein the registration request comprises an identifier associated with the UE [102]; an analysing unit [204] configured to analyse the identifier to extract a Routing Indicator (RI), wherein the RI indicates whether the registration request is to be processed by the first network node; and a processing unit [206] configured to process the registration request based on the RI.
  9. 9. The system as claimed in claim 8, wherein the processing unit is configured to reroute the registration request to a second network node [106B] of the CN when the RI indicates that the registration request is not to be processed.
  10. 10. The system as claimed in claim 9, wherein the second network node [106B] is identified based on the RI.
  11. 11. The system as claimed in claim 8, wherein the identifier is Subscriber Concealed Identifier (SUCI).
  12. 12. The system as claimed in claim 9, wherein the first network node [106A] is a first Access Mobility Function (AMF) and the second network node [106B] is a target AMF.
  13. 13. The system as claimed in claim 12, wherein the processing unit is configured to reroute the registration request to the target AMF based on a comparison of a dedicated RI of the target AMF with the extracted RI of the identifier.
  14. 14. The system as claimed in claim 13, wherein comparison of the dedicated RI of the target AMF with the extracted RI of the identifier eliminates the step of independent communication with at least one authentication node, to decrease time for rerouting the registration request.
  15. 15. A non-transitory computer-readable storage medium storing instruction to reroute a registration request, 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], the registration request for establishing a connection between the UE and a CN, wherein the registration request comprises an identifier associated with the UE [102]; an analyzing unit [204] to analyze the identifier to extract a Routing Indicator (RI), wherein the RI indicates whether the registration request is to be processed by the first network node; and a processing unit [206] to process the registration request based on the RI.

Description

METHOD AND SYSTEM FOR ROUTING THE REGISTRATION REQUEST IN A WIREEESS NETWORK FIEED OF THE DISCEOSURE [0001] The present disclosure relates generally to the field of wireless communication systems. More particularly, the present disclosure relates to methods and systems for routing the registration request in a wireless communication network. BACKGROUND [0002] 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. [0003] Wireless communication technology has rapidly evolved over the past few decades, with each generation bringing significant improvements and advancements. The first generation of wireless communication technology was based on analog technology and offered only voice services. However, with the advent of the second-generation (2G) technology, digital communication and data services became possible, and text messaging was introduced. 3G technology marked the introduction of high-speed internet access, mobile video calling, and location-based services. The fourth-generation (4G) technology revolutionized wireless communication with faster data speeds, better network coverage, and improved security. Currently, the fifth-generation (5G) technology is being deployed, promising even faster data speeds, low latency, and the ability to connect multiple devices simultaneously. With each generation, wireless communication technology has become more advanced, sophisticated, and capable of delivering more services to its users. [0004] In the field of mobile communications, particularly within a Public Land Mobile Network (PLMN) that hosts multiple dedicated isolated networks, a significant challenge arises in efficiently rerouting registration requests from User Equipment (UE) to the appropriate Access Mobility Function (AMF). These dedicated isolated networks, such as CIoT (Cellular Internet of Things) networks and Mobility networks, operate independently, each with its own set of user data, authentication functions, and mobility management functions. The traditional method of rerouting a UE to another AMF is based on network slicing, a concept that allows the creation of multiple virtual networks on top of a shared physical infrastructure. Each slice caters to a specific set of service requirements and has its own resources and network functions. However, in the case of completely isolated networks within the same PLMN, one network does not have access to the UE data of another network. This lack of shared UE data presents a problem because the authentication process fails for a UE who is wrongly routed to a network that does not possess their user data. Consequently, the UE cannot be authenticated and connected to the correct AMF, leading to service denial or delays. [0005] Moreover, existing methods for redirecting the UE to the correct network involve multiple message transactions between different network functions, such as the Authentication Server Function (AUSF) and the Unified Data Management (UDM). These interactions are necessary for authenticating the UE and determining the correct AMF based on the user's subscription data. However, this process introduces additional delays in redirecting the user, impacting the overall efficiency and performance of the network. The latency in the redirection process can be particularly detrimental in scenarios requiring low-latency communication, such as in real-time applications or emergency services. [0006] Thus, there exists an imperative need in the art to provide a system and method for the efficient rerouting of registration requests to the correct AMF without the need for extensive interactions with other network functions and without the delays associated with the traditional authentication and redirection processes, which the present disclosure aims to address. OBJECTS OF THE INVENTION [0007] Some of the objects of the present disclosure, which at least one embodiment disclosed herein satisfies are listed herein below. [0008] It is an object of the present disclosure to provide a method and system for routing the registration request in a wireless network. [0009] It is another object of the present disclosure to provide a method and system for routing the registration request in a wireless network that enables the rerouting of User Equipment (UE) to the correct Access Mobility Function (AMF) within a Public Land Mobile Network (PLMN) hosting multiple dedicated isolated networks, without the need for extensive interactions with other network functions such as the Authentication Server Function (AUSF) and Unified Data Management (UDM). [0010] It is another object of the present