EP-4736539-A1 - METHOD AND APPARATUS FOR NON-TERRESTRIAL NETWORK ACCESS MANAGEMENT

EP4736539A1EP 4736539 A1EP4736539 A1EP 4736539A1EP-4736539-A1

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by an access and mobility management function (AMF) entity in a wireless communication system is provided. The method comprises receiving, from a managed function entity, information on a non-terrestrial network (NTN) public land mobile network (PLMN) restriction, wherein the information includes first information on an identity (ID) of public land mobile network (PLMN) and second information associated with a location for which an access of the PLMN is restricted for an NTN access and restricting the NTN access associated with the location based on the first information and the second information.

Inventors

GAUTAM, DEEPANSHU
KAUSHIK, ASHUTOSH

Assignees

Samsung Electronics Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20240801

Claims (15)

A method performed by an access and mobility management function (AMF) entity in a wireless communication system, the method comprising: receiving, from a managed function entity, information on a non-terrestrial network (NTN) public land mobile network (PLMN) restriction, wherein the information includes first information on an identity (ID) of public land mobile network (PLMN) and second information associated with a location for which an access of the PLMN is restricted for an NTN access; and restricting the NTN access associated with the location based on the first information and the second information.
The method of claim 1, wherein the second information further includes geographical information on the location at which the PLMN is not allowed for the NTN access.
The method of claim 1, wherein the second information further includes information on a time duration for which the PLMN is not allowed for the NTN access at the location, and information on a network slice for which the PLMN is not allowed for the NTN access at the location.
The method of claim 1, wherein the information on the NTN PLMN restriction includes location restrictions per PLMN associated with the NTN access.
An access and mobility management function (AMF) entity in a wireless communication system, the AMF entity comprising: a transceiver; and a controller coupled with the transceiver and configured to: receive, from a managed function entity, information on a non-terrestrial network (NTN) public land mobile network (PLMN) restriction, wherein the information includes first information on an identity (ID) of public land mobile network (PLMN) and second information associated with a location for which an access of the PLMN is restricted for an NTN access, and restrict the NTN access associated with the location based on the first information and the second information.
The AMF entity of claim 5, wherein the second information further includes geographical information on the location at which the PLMN is not allowed for the NTN access.
The AMF entity of claim 5, wherein the second information further includes information on a time duration for which the PLMN is not allowed for the NTN access at the location, and information on a network slice for which the PLMN is not allowed for the NTN access at the location.
The AMF entity of claim 5, wherein the information on the NTN PLMN restriction includes location restrictions per PLMN associated with the NTN access.
A method performed by a managed function entity in a wireless communication system, the method comprising: transmitting, to an access and mobility management function (AMF) entity, information on a non-terrestrial network (NTN) public land mobile network (PLMN) restriction, wherein the information includes first information on an identity (ID) of public land mobile network (PLMN) and second information associated with a location for which an access of the PLMN is restricted for an NTN access, and wherein a restriction of the NTN access associated with the location is based on the first information and the second information.
The method of claim 9, wherein the second information further includes geographical information on the location at which the PLMN is not allowed for the NTN access.
The method of claim 9, wherein the second information further includes information on a time duration for which the PLMN is not allowed for the NTN access at the location, and information on a network slice for which the PLMN is not allowed for the NTN access at the location.
The method of claim 9, wherein the information on the NTN PLMN restriction includes location restrictions per PLMN associated with the NTN access.
A managed function entity in a wireless communication system, the managed function entity comprising: a transceiver; and a controller coupled with the transceiver and configured to: transmit, to an access and mobility management function (AMF) entity, information on a non-terrestrial network (NTN) public land mobile network (PLMN) restriction, wherein the information includes first information on an identity (ID) of public land mobile network (PLMN) and second information associated with a location for which an access of the PLMN is restricted, and wherein a restriction of the NTN access associated with the location is based on the first information and the second information.
The managed function entity of claim 13, wherein the second information further includes geographical information on the location at which the PLMN is not allowed for the NTN access, information on a time duration for which the PLMN is not allowed for the NTN access at the location, and information on a network slice for which the PLMN is not allowed for the NTN access at the location.
The managed function entity of claim 13, wherein the information on the NTN PLMN restriction includes location restrictions per PLMN associated with the NTN access.

Description

METHOD AND APPARATUS FOR NON-TERRESTRIAL NETWORK ACCESS MANAGEMENT The disclosure relates generally to the field of new radio (NR) satellite access, and more particularly, to a method and a system for enhanced non-terrestrial network (NTN) management in NR satellite access. Fifth generation (5G) mobile communication technologies define broad frequency bands such that high transmission rates and new services are possible, and can be implemented not only in sub 6 gigahertz (GHz) bands such as 3.5GHz, but also in above 6GHz bands referred to as millimeter wave (mmWave) bands including 28GHz and 39GHz. In addition, it has been considered to implement sixth generation (6G) mobile communication technologies referred to as beyond 5G systems in terahertz (THz) bands, such as 95GHz to 3THz bands, to realize transmission rates fifty times faster than 5G mobile communication technologies and ultra-low latencies one-tenth of 5G mobile communication technologies. At the beginning of the development of 5G mobile communication technologies, to support services and to satisfy performance requirements in connection with enhanced mobile broadband (eMBB), ultra reliable low latency communications (URLLC), and massive machine-type communications (mMTC), there has been ongoing standardization regarding beamforming and massive multiple input multiple output (MIMO) for mitigating radio-wave path loss and increasing radio-wave transmission distances in mmWave, supporting numerologies (for example, operating multiple subcarrier spacings) for efficiently utilizing mmWave resources and dynamic operation of slot formats, initial access technologies for supporting multi-beam transmission and broadbands, definition and operation of bandwidth part (BWP), new channel coding methods such as a low density parity check (LDPC) code for large amount of data transmission and a polar code for highly reliable transmission of control information, layer 2 (L2) pre-processing, and network slicing for providing a dedicated network specialized to a specific service. Currently, there are ongoing discussions regarding improvement and performance enhancement of initial 5G mobile communication technologies in view of services to be supported by 5G mobile communication technologies, and there has been physical layer standardization regarding technologies such as vehicle-to-everything (V2X) for aiding driving determination by autonomous vehicles based on information regarding positions and states of vehicles transmitted by the vehicles and for enhancing user convenience, NR-unlicensed (NR-U) aimed at system operations conforming to various regulation-related requirements in unlicensed bands, NR user equipment (UE) power saving, NTN which is UE-satellite direct communication for providing coverage in an area in which communication with terrestrial networks is unavailable, and positioning. Moreover, there has been ongoing standardization in air interface architecture/protocol regarding technologies such as industrial Internet of things (IIoT) for supporting new services through interworking and convergence with other industries, integrated access and backhaul (IAB) for providing a node for network service area expansion by supporting a wireless backhaul link and an access link in an integrated manner, mobility enhancement including conditional handover and dual active protocol stack (DAPS) handover, and two-step random access channel (2-step RACH) for simplifying NR random access procedures. There also has been ongoing standardization in system architecture/service regarding a 5G service based architecture or service based interface for combining network functions virtualization (NFV) and software-defined networking (SDN) technologies, and mobile edge computing (MEC) for receiving services based on UE positions. As 5G mobile communication systems are commercialized, connected devices that have been exponentially increasing will be connected to communication networks, and it is accordingly expected that enhanced functions and performances of 5G mobile communication systems and integrated operations of connected devices will be necessary. To this end, new research is scheduled in connection with extended reality (XR) for efficiently supporting augmented reality (AR), virtual reality (VR), mixed reality (MR) and the like, 5G performance improvement and complexity reduction by utilizing artificial intelligence (AI) and machine learning (ML), AI service support, metaverse service support, and drone communication. Such development of 5G mobile communication systems will serve as a basis for developing not only new waveforms for providing coverage in THz bands of 6G mobile communication technologies, multi-antenna transmission technologies such as full dimensional MIMO (FD-MIMO), array antennas and large-scale antennas, metamaterial-based lenses and antennas for improving coverage of THz band signals, high-dimensional space multiplexing technology using orbital an