Abstract: Methods and/or systems for managing satellite communication using a store and forward (S&F) service with at least one network node onboard satellite. An example method may include: determining, by a User Equipment (UE), that a network supports the store and forward service; and initiating, by UE, at least one Non-Access Stratum (NAS) procedure with network, wherein UE re-attempts to provide a NAS signaling based on received at least one store and forward information. Determining, by a core network node, that at least one NAS procedure initiated by UE cannot be completed due to store and forward (S&F) operation, wherein core network node onboard the network; and providing, by core network node, at least one S&F information to UE, wherein S&F information comprises an indication of UE in S&F operation, list of Satellite Identifications (IDs), and S&F wait timer.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments disclosed herein provide a method for handling slice Deregistration Inactivity timer of on-demand S-NSSAI in a telecommunication network (1000) by a UE (100). The method includes determining whether a MA PDU session is successfully established. In an embodiment, the method includes avoiding to start a slice de-registration inactivity timer in the UE and an AMF entity (200) on any access type, when the MA PDU session is successfully established. In another embodiment, the method includes starting the slice deregistration inactivity timer for the on-demand S-NSSAI over a corresponding access type, when the MA PDU session is not successfully established.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Specifically, the disclosure related to a method performed by a user equipment (UE) for managing behavior of Equivalent Stand-alone Non-Public Network (SNPN) in a wireless communication system.

Abstract: Embodiments herein disclose a method for handling a PLMN selection in a wireless network by a UE. The method includes receiving, by a user equipment (UE), slice-based PLMN selection information from a network entity of a home public land mobile network (HPLMN), and selecting, by the UE, a visited public land mobile network (VPLMN) among a plurality of PLMNs based on a priority order defined in the slice-based PLMN selection information.

Abstract: The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. A method performed by a user equipment (UE) for handling session management (SM) procedure in a wireless network system is provided. The method includes establishing, by the UE, a protocol data unit (PDU) session with a network apparatus in the wireless network system, determining, by the UE, whether the UE is in an area where a single-network slice selection assistance information (S-NSSAI) associated with the PDU session is not allowed or not supported by the network apparatus, and in case that the UE is in the area where the S-NSSAI of the PDU session is not allowed or not supported by the network apparatus, initiating, by the UE, a PDU session release procedure or initiating a PDU session modification procedure.

Abstract: A method for handling, by a mobility management entity (MME)-ground, a user equipment (UE) context for satellite communication is provided. The method may comprise maintaining a UE context for a UE based on the UE registering with a network entity. The method may comprise identifying at least one first MME-onboard each of which is in a corresponding satellite having possibility to serve the UE. The method may comprise sharing the UE context stored at the MME-ground with the at least one identified first MME-onboard.

Abstract: A method of a mobile station (MS) for performing closed access group (CAG) selection is disclosed. The method may comprise camping on a cell of a first public land mobile network (PLMN); and performing PLMN selection, cell selection or cell re-selection based on a current time, and a time validity information corresponding to each CAG-identifier(ID) for a second PLMN, based on the MS being in a limited service state in the first PLMN, and being in an automatic PLMN selection mode.

Abstract: A method for access control of a UE (120) connecting through a Mobile base station relay (MBSR)-UE (122) in a wireless network (1000) by an IAB-Donor gNB (108). The method includes connecting the UE (120) to the IAB-Donor gNB (108) through a first MBSR-UE (122) to receive an emergency service in the wireless network. Further, the method includes determining that the first MBSR-UE (122a) is about to become unavailable to provide the emergency service to the UE (120) in the wireless network. Further, the method includes transmitting a handover request message to the UE (120) to perform an handover procedure to move the UE (120) to a NG-RAN node (104) before the first MBSR-UE (122a) becomes unavailable in the wireless network upon determining that the first MBSR-UE (122a) is about to become unavailable.

Abstract: A method performed by a mobility management entity (MME) are provided. The method comprises detecting that a monitoring event that a user equipment (UE) is moving from being registered in a store and forward (S&F) mode to not being registered in the S&F mode, and in response to detecting the monitoring event, transmitting, to a service capability server/application server (SCS/AS), a message indicating that the UE is moving from being registered in the S&F mode to not being registered in the S&F mode.

Abstract: A method for handling a store and forward (S&F) satellite operation for satellite communication is provided.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a network slice admission control function (NSACF) in a communication system, the method comprising: receiving, from a session management function plus packet data network gateway control plane function (SMF+PGW?C), a message for controlling a number of user equipment (UEs) registered to a network slice, the message comprising an update flag; identifying whether the update flag comprises update value indicating that an access type of the UE is to be replaced with a new access type; and in case that the update flag comprises the update value, replacing the access type of the UE with the new access type.

Abstract: The disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). Embodiments disclosed herein provide a method for managing a NSSAI list in a wireless network (1000) by a UE (100). The method includes receiving the partially allowed NSSAI list or an allowed NSSAI list from a NF entity (200) in the wireless network (1000). Further, the method includes deleting the S-NSSAI, from the partially rejected NSSAI, included in the partially allowed NSSAI list or allowed NSSAI list. Further, the method includes receiving the configured NSSAI information from the NF entity (200). Further, the method includes deleting a stored partially rejected NSSAI based on the configured NSSAI information.

Abstract: A method and a system for capability reporting for handling public land mobile network (PLMN)-specific attempt counters in a disaster roaming registration procedure in a wireless communication system are provided. The method includes receiving, by a user equipment (UE), a registration accept message from a PLMN upon, based on initiation of the disaster roaming registration procedure between the UE and the PLMN. Further, the method includes determining, by the UE, whether the registration accept message is for disaster roaming services, based on the registration accept message. Further, the method includes performing, by the UE, one of resetting a PLMN-specific attempt counter for the PLMN, based on the registration accept message being determined to not be for the disaster roaming services, or resetting the PLMN-specific attempt counter of the PLMN for a PLMN determined by the UE as having a disaster condition, based on the registration accept message being determined to be for the disaster roaming services.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide a method for handling a RPLMN during a disaster situation in a wireless network by a UE. In an embodiment, the method includes selecting RPLMN as PLMN with the disaster condition for accessing the disaster roaming services in response to determining that the RPLMN is included in a list of PLMNs with disaster condition for which disaster roaming services is offered by another PLMN and is allowable. In another embodiment, the method includes skipping the RPLMN and determining a PLMN with disaster condition for acessing the disaster roaming services in response to determining that the at least one PLMN is not included in the list of PLMNs with the disaster condition for which disaster roaming services is offered by the another PLMN or is not allowable.

Abstract: Embodiments herein provide a method for managing a priority of Visited Public Land Mobile Networks (VPLMNs) of a wireless communication network. The method includes receiving a registration accept message including steering of roaming (SoR) information from a VPLMN; in response to a security check of the SoR information being failed, adding the VPLMN to a SoR abort list including PLMNs where a registration was aborted due to SoR; and deleting the SoR abort list after a predetermined time period.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose a method for handling an UE (100) during an unavailability period in a wireless network (1000) by the UE (100). The method includes detecting that a network apparatus (700) in the wireless network (1000) supports for the unavailability period in a last registration procedure. Further, the method includes determining an event is triggered, where the event makes the UE to become 2024/101810 unavailable. Further, the method includes creating a REGISTRATION REQUEST message by including an information to indicate unavailability period that starts immediately. Further, the method includes setting a follow-on request indicator to “No follow-on request pending” and not include an uplink data status IE or an allowed PDU session status IE in the REGISTRATION REQUEST message. Further, the method includes sending the REGISTRATION REQUEST message to the network apparatus (700).

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a base station in a wireless communication system includes identifying that a user equipment (UE) is out of a coverage of a satellite due to a discontinuous coverage (DC), and transmitting, to a network entity managing a mobility of the UE, a UE context release request message including a cause value for a UE context release.

Abstract: Methods and/or systems for providing packet data network (PDN) connectivity in a satellite communication network. An example method may include storing, by a mobility management entity (MME)-onboard entity, a PDN connectivity request at a first time instance, on the MME-onboard entity receiving the PDN connectivity request from a user equipment (UE). A method may include processing, by the MME-onboard entity, a PDN connectivity procedure based on the PDN connectivity request, on the MME-onboard entity establishing a feeder link and obtaining a connection with a ground core network (CN) entity. A method may include obtaining, by the MME-onboard entity, a response corresponding to the PDN connectivity procedure from an MME-ground entity. A method may include implementing, by the MME-onboard entity, the PDN connectivity procedure based on the PDN connectivity procedure being initiated by the UE at a second time instance.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure relates to method and apparatus for managing forbidden tracking areas in communication network. The method comprises receiving, from an access and mobility function (AMF), a reject message including a rejection cause regarding an access to at least one network slice, wherein the UE is camped on a first tracking area of a plurality of tracking areas associated with a public land mobile network (PLMN), and wherein the rejection cause is based on an error indicating unavailability of the at least one network slice in the first tracking area; storing information of the first tracking area in a list of forbidden tracking areas for the UE; and recording the error while storing the information of the first tracking area in the list of forbidden tracking areas for the UE.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Disclosed is a method performed by a User Equipment, UE, in a telecommunication network, comprising the steps of: receiving, from a network entity, a Network Slice Access Group, NSAG, information; determining whether there is a Single-Network Slice Selection Assistance Information, S-NSSAI, entry which is in the NSAG information, which is not part of a configured NSSAI; and removing, from the NSAG information, any S-NSSAI entry which is in the NSAG information nad is not part of the configured NSSAI.