Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a user equipment (UE) in a communication system is provided. The method includes receiving disaster configuration information being encrypted; decrypting the disaster configuration information to verify an integrity of the disaster configuration information before acting upon or storing the disaster configuration information; and identifying whether a disaster roaming is available based on the disaster configuration information.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for handling communication in a wireless network by a user equipment (UE) is provided. The method includes receiving a non-access stratum (NAS) message indicating that the UE is not permitted to access a first public land mobile network (PLMN) over a satellite communication along with geographical indication or a timer indication from the first PLMN. Further, the method includes determining a geographical area based on the received geographical indication or a timer value based on the timer indication. Further, the method includes starting a timer with the timer value. Further, the method includes determining that the UE is not allowed to access the first PLMN in the determined geographical area or the expiry of the timer.

Abstract: Various embodiments herein disclose a method camping a User Equipment (UE) on a cell, the method comprising: creating a combined Most Recently Used (MRU) list by merging a list 4G MRU frequencies with a Public Land Mobile Network (PLMN) having a 5GC and a list of 5G MRU frequencies, determining whether one of a 4G cell with 5G core (5GC) and a 5G cell is available for camping by performing a MRU scan on the combined MRU list; performing one of: camping on one of the 4G cell with 5G core and the 5G cell in response to determining that one of the 5G cell and the 4G cell with 5G core is available and performing a 4G MRU frequency scan on a list of 4G without 5GC MRU frequencies in response to determining that one of the 4G cell with 5G core and the 5G cell is not available.

Abstract: The present disclosure relates to a communication method and system for converging a 5G communication system for supporting higher data rates beyond a 4G system with a technology for IoT. Embodiments herein provide method for controlling disaster roaming service in a wireless network by UE. The method includes receiving a disaster roaming enabled indication from first PLMN or second PLMN associated with UE. Further, the method includes detecting a disaster condition. Further, the method includes determining whether the disaster roaming enabled indication indicates that a disaster roaming is disabled in UE or disaster roaming is enabled in UE. In an embodiment, the method includes enabling the disaster roaming service at UE and allowing UE to select the PLMN for using the disaster roaming service during the disaster condition in response to determining that disaster roaming is enabled in UE.

Abstract: Embodiments herein provide a method for controlling disaster area for disaster roaming service by a UE (100). The method includes detecting a disaster condition associated with a first PLMN (200a) that is associated with a first service provider. Further, the method includes sending a registration request to a second PLMN (200b) for the disaster roaming service. The second PLMN (200b) is associated with a second service provider and is available in a disaster area covered by the first PLMN (200a). Further, the method includes receiving a TAI list from the second PLMN (200b). The TAI list includes a set of tracking areas associated with the disaster area covered by the second PLMN (200b). Further, the method includes camping on the second PLMN (200b) for the disaster roaming service in the set of tracking areas indicated in the TAI list during the disaster condition with the first PLMN (200a).

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 a deregistration procedure of a UE (100) for a disaster roaming service in a wireless network (1000) by the UE (100). The method includes detecting a disaster condition in the wireless network (1000). Further, the method includes triggering a registration procedure with a forbidden PLMN (FPLMN) on a 3GPP access to receive the disaster roaming service in the wireless network (1000) and get registered for the disaster roaming service with the FPLMN (300). Further, the method includes detecting a signal on a non-3GPP access to receive a normal service. Further, the method includes triggering a deregistration procedure with the FPLMN (300) on the 3GPP access to stop receiving the disaster roaming service from the FPLMN (300) in response to detecting the signal on the non-3GPP access to receive the normal service.

Abstract: A method of handling an ongoing call performed by a UE in a wireless network is provided. The method includes initiating a voice over long term evolution (VoLTE) call in a 4th generation (4G) network, detecting that a 5th generation (5G) network entity has configured an inter radio access technology (I-RAT) measurement indicating a change from the 4G network to a 5G network based on identification of the 5G network by the UE, determining whether at least one of the UE or the 5G network does not support a voice over new radio (VoNR) call with a 5G cell in the 5G network, and performing one of delaying sending a measurement report until the VoLTE call is completed in response to determining that the at least one of the UE or the 5G network does not support the VoNR call, or sending the measurement report immediately for the 5G cell in response to determining that both the UE and the 5G network support the VoNR call.

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: Methods and/or systems for managing continuity of data flow in 5G networks. A UE may receive a message from a 5G network in response to a PDU session establishment request. The message indicates a failure to establish a PDU session with a first DNN and a first network slice. A PDU session may be established with at least one of a second DNN and a second network slice, if the PDU session is matching with a route selection descriptor applicable to data traffic to be routed through the PDU session. A non-CIoT device may receive a message from a 5G network in response to a service request. The message may indicate failure of a service request procedure, pertaining to a PDU session, such as due to insufficient user-plane resources. The PDU session may be closed and reestablished. If there is lower layer failure in 5G, a connection may be established with a 4G network for data transfer.

Abstract: A method for connecting user equipment (UE) to data network name (DNN) in public network integrated non-public network (NPN) is provided. The method includes identifying prioritized DNN and corresponding network slice, from list of prioritized DNNs and network slices, when UE (moves from first location to second location, where session management (SM) retry timer is enabled, disabling SM retry timer based on identification, evaluating user route selection policy (URSP) rule for connecting UE to prioritized DNN and corresponding network slice. Further, the disclosure relates to method receiving rejection cause when UE sends request to connect to higher priority DNN and via corresponding network slice, where SM retry timer is enabled, detecting inactivity of packet transmission for pre-determined time period, and evaluating URSP rule, where UE is connected to higher priority DNN, and corresponding network slice.

Abstract: Embodiments herein disclose methods for handling operation of a UE during a disaster situation by the UE. The method includes initiating a wait timer upon selecting a forbidden public land mobile network (FPLMN) to receive a disaster roaming service. Further, the method includes determining whether at least one of: a MS is registered via a non-3GPP access or 3GPP access to another allowable PLMN, the FPLMN has stopped broadcasting a disaster related indication, and the FPLMN has stopped broadcasting the PLMN with the disaster condition. Further, the method includes stopping the wait timer and performing a PLMN selection procedure based on the determination. The provided method optimizes the operations in disaster situations.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose methods and systems for providing services efficiently in a wireless communication network, following a disaster condition. According to various embodiments, a method performed by a user equipment (UE) connected to at least one public land mobile network (PLMN), the method comprising: identifying that a disaster condition is applied to the at least one PMLN; determining one or more PLMN among at least one available PLMN, and one or more registration type supported by the determined one or more PLMN, wherein the one or more registration type include information on a normal registration or information on a disaster roaming registration; and triggering a registration procedure based on the determined one or more registration type.

Abstract: The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes, at switch-on or recovery from a lack of a coverage, identifying that a registered public land mobile network (PLMN) is a PLMN with which the UE is registered for a disaster roaming, and performing a PLMN selection procedure, based on the identification, wherein the registered PLMN is ignored during the PLMN selection procedure.

Abstract: A method for a data session switching by a User Equipment (UE) is provided. The method includes monitoring network broadcasted parameters of a second Subscriber Identity Module (SIM) of the UE while performing a Fifth Generation Cellular Network (5G) data session over a first SIM of the UE, where the first SIM is configured for a Default Data Service (DDS), detecting that a trigger criterion is met for the 5G data session switching to the second SIM based on the network broadcasted parameters, and in response to the trigger criterion being met, configuring the second SIM for the DDS for continuing the 5G data session over the second SIM.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The embodiment herein is to disclose a method for selecting PLMN with disaster condition (PLMN-D) to receive disaster roaming service in an area. The method includes detecting, by a UE, a disaster condition in the area. Further, the method includes detecting, by the UE, a forbidden PLMN (FPLMN) broadcasting a plurality of PLMN-Ds in the area. Further, the method includes selecting, by the UE, the at least one PLMN-D from the plurality of PLMN-D based on a predefined sequence of priority order. Further, the method includes camping, by the UE, the FPLMN corresponding to the at least one selected PLMN-D. Further, the method includes triggering, by the UE, a registration procedure on the camped FPLMN by indicating the at least one selected PLMN-D in the registration request message.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology. A method of handling control plane data in a wireless network. The method comprises sending, by a user entity (UE), a non-access stratum (NAS) message along with an indication data to a mobility management (MM) core network entity. The MM core network entity processes the received NAS message and the indication data. The MM core network entity determines status of network congestion upon processing the processed NAS message. Sending, by the MM core network entity, a response to the UE based on at least one of the processed indication data and the determined network congestion.

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 registration of a UE (100) for disaster roaming service in a network (1000) by a second PLMN (200b). In an embodiment, the method includes sending a registration reject message to the UE (100) in response to determining that the UE is not allowed to receive the disaster roaming service, with a first PLMN as PLMN with the disaster condition, from the second PLMN. In another embodiment, the method includes determining whether the second PLMN (200b) provides the disaster roaming service or a normal service to the UE (100) in response to determining that the UE is allowed to receive the service from the second PLMN (200b), and sending a registration accept message to the UE (100).

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for handling communication in a wireless network by a user equipment (UE) is provided. The method includes receiving a non-access stratum (NAS) message indicating that the UE is not permitted to access a first public land mobile network (PLMN) over a satellite communication along with geographical indication or a timer indication from the first PLMN. Further, the method includes determining a geographical area based on the received geographical indication or a timer value based on the timer indication. Further, the method includes starting a timer with the timer value. Further, the method includes determining that the UE is not allowed to access the first PLMN in the determined geographical area or the expiry of the timer.

Abstract: Methods and systems for SIM management on a DSDA/DSDS device. Methods and systems for Subscriber Identity Module (SIM) management on a User Equipment (UE) are provided. The UE includes one of, a Dual SIM Dual Active (DSDA) UE, or a Dual SIM Dual Standby (DSDS) UE. A method disclosed herein includes selecting a SIM from dual SIM for at least one application to establish at least one Protocol Data Unit (PDU) session. The method includes selecting the SIM for the at least one application based on, at least one of, UE Route Selection Policy (URSP) rules of each SIM, Local Area Data Network (LADN) Data Network Names (DNNs) available per SIM, a current status of each SIM, and an availability of Public Network Integrated Non-Public Network (PNI-NPN) services for each SIM.

Abstract: Methods and systems for managing temperature of 5G UE by TX/RX path switching. If temperature of the UE increases beyond a preconfigured threshold due to heat contributed by a first TX/RX path of the UE, embodiments perform switching from the first TX/RX path to a second TX/RX path to control the temperature of the UE. The first TX/RX path and the second TX/RX path correspond to the same or different RF bands. If the first TX/RX path and the second TX/RX path correspond to different RF bands, the UE sends, to a wireless network, either: a measurement report, indicating that RSRP of a cell corresponding to the second TX/RX path is greater than RSRP of the serving cell corresponding to the first TX/RX path; or a UE Assistance Information indicating that the UE intends to camp on the cell corresponding to the second TX/RX path of the UE.