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EP-4740519-A1 - METHOD AND SYSTEM FOR MANAGING CAPABILITY INFORMATION FOR USER EQUIPMENT

EP4740519A1EP 4740519 A1EP4740519 A1EP 4740519A1EP-4740519-A1

Abstract

The present disclosure relates to a method and a system for managing capability information for a user equipment The disclosure encompasses receiving, by a transceiver unit [204] at a network node [104], a registration request from an AMF unit [106]; sending, by the transceiver unit [204] at the network node [104], a first UE capability enquiry request to the UE [102]; receiving, by the transceiver unit [204] at the network node [104], a first UE capability response in response to the first UE capability enquiry request; sending, by the transceiver unit [204] at the network node [104], a second UE capability enquiry request to the UE [102]; receiving, by the transceiver unit [204] at the network node [104], a second UE capability response in response to the second UE capability enquiry request; transmitting, by the transceiver unit [204] at the network node [104], a response message to the AMF unit [106].

Inventors

  • GUPTA, KAPIL B
  • BHATNAGAR, AAYUSH
  • BHATNAGAR, PRADEEP KUMAR
  • BUCH, YASHESH KAMLESH
  • Vundavilli, Srinivasa Rao
  • ANUJ, KUMAR
  • GUPTA, RAJESH
  • KAPADIA, Sameer
  • Gupta, Jaya

Assignees

  • Jio Platforms Limited

Dates

Publication Date
20260513
Application Date
20240627

Claims (20)

  1. 1. A method [1000] for managing capability information for a user equipment (UE) [102] in a wireless communication network, comprising: receiving, by a transceiver unit [204] at a network node [104], a registration request from an Access and Mobility Management Function (AMF) unit [106]; sending, by the transceiver unit [204] at the network node [104], a first UE capability enquiry request to the UE [102]; in response to the first UE capability enquiry request, receiving, by the transceiver unit [204] at the network node [104], a first UE capability response; sending, by the transceiver unit [204] at the network node [104], a second UE capability enquiry request to the UE [102]; in response to the second UE capability enquiry request, receiving, by the transceiver unit [204] at the network node [104], a second UE capability response; and transmitting, by the transceiver unit [204] at the network node [104], a response message comprising a combination of the first UE capability response and the second UE capability response to the AMF unit [106],
  2. 2. The method as claimed in claim 1 comprising establishing, by the transceiver unit [204] at the network node [104], a Packet Data Unit (PDU) session between the UE [102] and the AMF unit [106] based at least on the response message.
  3. 3. The method as claimed in claim 1, wherein the network node [104] is a gNodeB.
  4. 4. The method as claimed in claim 1, wherein the registration request is an initial context setup (ICS) request, wherein the ICS request is independent of one or more UE capabilities.
  5. 5. The method as claimed in claim 1, further comprising establishing a secure connection between the network node [104] and the UE [102] based on at least one secure protocol.
  6. 6. The method as claimed in claim 1, wherein upon receiving the first UE capability response, the method further comprises transmitting, by the transceiver unit [204] at the network node [104], a registration response to the AMF unit [106] in response to the registration request to complete a UE registration procedure.
  7. 7. The method as claimed in claim 6, wherein the second UE capability enquiry request is sent to the UE after completing the UE registration procedure, the UE registration procedure is completed based on: receiving the first UE capability response from the UE [102]; and transmitting the first UE capability response to the AMF unit [106],
  8. 8. The method as claimed in claim 1, further comprising: initiating, by an analysis unit [206] at the network node [104], a predefined timer upon sending the second UE capability enquiry request; in case the predefined timer expires before receipt of the second UE capability response, releasing, by the analysis unit [206] at the network node [104], the UE [102] from the wireless communication network; and re-initiating, by the analysis unit [206] at the network node [104], the registration request.
  9. 9. The method as claimed in claim 1, wherein the first UE capability enquiry request is a New Radio (NR) request.
  10. 10. The method as claimed in claim 1, wherein the second UE capability enquiry request is an Evolved Universal Terrestrial Radio Access (EUTRA) request.
  11. 11. The method as claimed in claim 8, further comprising: receiving, by the transceiver unit [204] at the network node [104], a measurement report from the UE [102]; and initiating, by the analysis unit [206] at the network node [104], a handover procedure based at least on the received measurement report.
  12. 12. The method as claimed in claim 11, wherein upon successful initiation of the handover procedure, the method further comprises: determining, by the analysis unit [206] at the network node [104], whether a secure connection is established with the UE [102] based at least on a first interface; upon determining that the secure connection is established with the UE [102] based at least on the first interface, initiating, by the analysis unit [206] at the network node [104], a handover based at least on the first interface; upon determining that the secure connection is not established with the UE [ 102] based at least on the first interface, initiating, by the analysis unit ]206] at the network node [104], a handover based at least on a second interface; and sending, by the transceiver unit [204] at the network node [104], the second UE capability enquiry request to the UE [102],
  13. 13. The method as claimed in claim 12, wherein the first interface is an Xn interface.
  14. 14. The method as claimed in claim 12, wherein the second interface is an Ng interface.
  15. 15. A system [200] for managing capability information for a user equipment (UE) [102] in a wireless communication network, the system [200] comprising: a network node [104], the network node [104] comprising a transceiver unit [204] configured to: receive a registration request from an Access and Mobility Management Function (AMF) unit [106]; send a first UE capability enquiry request to the UE [102]; in response to the first UE capability enquiry request, receive a first UE capability response; send a second UE capability enquiry request to the UE [102]; in response to the second UE capability enquiry request, receive a second UE capability response; and transmit a response message comprising a combination of the first UE capability response and the second UE capability response to the AMF unit [106],
  16. 16. The system [200] as claimed in claim 15, wherein the transceiver unit [204] is further configured to establish a Packet Data Unit (PDU) session between the UE [102] and the AMF unit [106] based at least on the response message.
  17. 17. The system [200] as claimed in claim 15, wherein the registration request is an initial context setup (ICS) request, wherein the ICS request is independent of one or more UE capabilities.
  18. 18. The system [200] as claimed in claim 15, wherein the network node [104] is a gNodeB.
  19. 19. The system [200] as claimed in claim 15, wherein upon receipt of the first UE capability response, the transceiver unit [204] is further configured to transmit a registration response to the AMF unit [106] in response to the registration request to complete a UE registration procedure.
  20. 20. The system as claimed in claim 19, wherein the second UE capability enquiry request is sent to the UE [102] after completing the UE registration procedure, the UE registration procedure is completed based on: receipt of the first UE capability response from the UE [102]; and transmission of the first UE capability response to the AMF unit [106],

Description

METHOD AND SYSTEM FOR MANAGING CAPABILITY INFORMATION FOR USER EQUIPMENT FIELD OF INVENTION [0001] The present disclosure relates generally to the field of wireless communication systems. More particularly, the present disclosure relates to method and system for managing capability information for user equipment. 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. The third generation (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] Existing approaches for managing user equipment (UE) capabilities in wireless communication networks, particularly in 5G networks, face several challenges. One major issue is the delay in forming UE capability information messages that include both New Radio (NR) and Evolved Universal Terrestrial Radio Access (EUTRA) capabilities. This delay can result in extended registration times for UEs, negatively impacting the user experience. Another problem is the expiry of procedure waiting timers at the gNodeB. If the UE takes too long to respond with its capability information, the timer can expire, leading to a failure in the registration process. This issue is exacerbated by the delay in forming the capability information messages. Additionally, the combined NR and EUTRA capability information message can be quite large, around 2500 bytes or more. In areas with poor radio frequency (RF) conditions, these bulky messages are more likely to be dropped, leading to unsuccessful registrations. Furthermore, existing methods often lead to inefficient use of network resources by enquiring and transmitting all UE capabilities in one go, even when only a subset is immediately needed. This can result in unnecessary network congestion and waste of resources. [0005] Therefore, there is a requirement to enhance UE capability enquiry procedure which can improve UE registrations in the 5G network and lead to overall better UE experience, which the present disclosure aims to address. OBJECTS OF THE INVENTION [0006] Some of the objects of the present disclosure, which at least one implementation disclosed herein satisfies are listed herein below. [0007] It is an object of the present disclosure to provide system and method for managing capability information for user equipment. [0008] It is another object of the present disclosure to provide a solution that enhances the UE capability enquiry procedure which further improves UE registrations in the 5G network and lead to overall better UE experience and improved overall UE registration success rate. [0009] It is another object of the present disclosure to provide a solution that also reduces the delay in Registration procedure as capability enquiry only for NR takes less time per UE. [0010] It is another object of the present disclosure to provide a solution that is well suited for any heterogeneous network with Multi-RAT, Multi-Vendor consist of different products like Macro, Micro and small cell. [0011] It is another object of the present disclosure to provide a “UE Capability Split” solution wherein capability information message is split and transported into multiple segments, each containing only one RAT technology related capability information. [0012] It is yet another object of the present disclosure to provide a solution that can improve network Key Performance Indicator (KPI) of registration success rate. BRIEF DESCRIPTION OF DRAWINGS [0013] The accompanying drawings, which are incorporated herein, and constitute a part of this disclosure, illustrate exemplary implementations of the disclosed methods and systems in which like reference numerals refer to the same parts t