Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. In some implementations, a user equipment (UE) and method to manage a rejected network slice selection assistance information (NSSAI) is disclosed. The method may include receiving, from a network, an activate default EPS bearer context request message with a Single-NSSAI (S-NSSAI) and a Public Land Mobile Network (PLMN) identifier (ID). In addition, the method may include removing the S-NSSAI from a rejected NSSAI list for a current PLMN.

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: 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: 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 optimizing acquisition time and power consumption at a user equipment (UE) are provided. The method includes establishing, by the UE located at an initial location, a radio resource control (RRC) connection with a non-terrestrial network (NTN)-based public land mobile network (PLMN), determining a current location of the UE based on one or more predetermined parameters, determining whether to perform a PLMN search for identifying a PLMN with a higher priority than connected NTN-based PLMN based at least on the initial location and the current location of the UE; and performing one of performing the PLMN search upon determining that a distance between the initial location and the current location of the UE is greater than a predetermined threshold distance value, or skipping the PLMN search upon determining that the distance between the initial location and the current location of the UE is less than the predetermined threshold distance value.

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. 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 fifth generation (5G) or sixth generation (6G) communication system. Embodiments herein disclose methods for maintaining priority of a VPLMN during a PLMN selection procedure by a UE. The method includes ignoring a pre-configured priority for a VPLMN and considering the VPLMN as a lowest priority in response to determining that the UE has entered a state and the second SOR information is not received before the UE enters the state or the received second SOR information security check is not successful. The method includes considering a priority of the VPLMN as the pre-configured priority by not considering the VPLMN as a lowest priority and stopping the timer associated with the “first SOR security check not successful” in response to determining that the UE receives the second SOR information and a second SOR security check is successful before the UE enters the state.

Abstract: A method and a system for selecting Non-Terrestrial Networks (NTNs) in communication networks are provided. The method includes prioritizing a random terrestrial network (TN) over other NTNs, changing the scan pattern to accommodate combination of Bands, radio access technologies (RATS), and public land mobile networks (PLMNs), and pre-configuring PLMN priorities at the user equipment (UE).

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 for handling unavailability period collision in a wireless network (1000) by a network apparatus (200). The method includes identifying that a collision occurs between a network slice specific authentication and authorization (NSSAA) procedure and a registration procedure. Further, the method includes in case that a registration request message for the registration procedure includes information on an unavailable period, aborting the NSSAA procedure.

Abstract: The present disclosure relates to a system and a method for connection management. The method includes establishing, by a UE, a connection with a 5G cell. The established connection with the 5G cell is in a current tracking area of a 5G New Radio (NR). Further, the method includes determining, by the UE, one or more Long-Term Evolution (LTE) cells in the current tracking area or registration area that are not accessible to the UE (300). The one or more LTE cells are configured to operate on an LTE frequency. Furthermore, the method includes temporarily deprioritising or disabling, by the UE, a Stand Alone (SA) mode based on the determination of the one or more LTE cells in the current tracking area or the registration area that are not accessible to the UE.

Abstract: An example a method for managing paging restrictions in a wireless network includes detecting, by a UE, whether a first subscriber identity module (SIM) is configured for a dedicated data subscription (DDS). The method further includes detecting, by the UE, an occurrence of a trigger condition in connection with at least one of the first SIM and at least one second SIM and enabling, by the UE, a paging restriction to the at least one second SIM based on the occurrence of the predetermined trigger condition.

Abstract: A method of selecting access network for routing data of user equipment (UE) is provided. The method includes receiving trigger indicating a requirement of one or more network services. Further, the method includes determining that a UE is registered on a Third Generation Partnership Project (3GPP) access network and a non-3GPP access network simultaneously. The method includes identifying availability of one or more network services in the 3GPP access network and the non-3GPP access network. Thereafter, the method includes selecting one of, the 3GPP access network and the non-3GPP network, based on availability of one or more network services in one of, the 3GPP access network and the non-3GPP access network, or selecting one of, the 3GPP access network and the non-3GPP network based on one or more network parameters, when one or more network services are available in the 3GPP access network and the non-3GPP access network.

Abstract: The present disclosure relates to an apparatus and method for cell reselection in a wireless communication system. The method comprises: determining whether a User Equipment (UE) is in an inactive mode supported by a serving cell and detecting a trigger for reselection of the serving cell for the UE, while the UE is in the inactive mode. The method further comprises identifying, based on the detection, a plurality of neighbouring cells available for being connected to the UE. The method also comprises selecting a first cell, from among the plurality of the neighbouring cells, that supports the inactive mode of the UE, for connecting with the UE.

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 mobile communication system is provided. The method comprises receiving, from an access management function (AMF) entity via a base station, a configuration update command message in case that the UE supporting a multi universal subscriber identity module (MUSIM) feature is not registered for an emergency service, and disabling the MUSIM features based on the received configuration update command message. The configuration update command message includes registration result information indicating that the UE supporting the MUSIM features is registered for the emergency service.

Abstract: A method for optimizing a medium access control (MAC) padding and uplink (UL) grants in a wireless network is provided. The method includes transmitting buffer status report (BSR) to a network apparatus from at least one of a first MAC entity or a second MAC entity, receiving UL grants from the network apparatus based on a data volume requested in the BSR, transmitting UL transmission data from one of the first MAC entity or the second MAC entity to the network apparatus by MAC padding the UL transmission data based on the UL grants and the data volume, determining a set of padded bits of the UL transmission data one of the first MAC entity or the second MAC entity, and scaling the data volume to a scaled data volume be requested in a subsequent BSR at the at least one of the first MAC entity or the second MAC entity.

Abstract: A method for controlling, by a user equipment (UE), PDCP aggregation in a dual connectivity mode includes receiving a first Uplink (UL) data threshold value from a network; monitoring a throughput of a UL data of the UE and occurrence of at least one UL channel condition, wherein the at least one UL channel condition includes at least one of a network condition and a UE condition; determining whether to perform a calculation of a second UL data threshold value based on the occurrence of the at least one UL channel condition; calculating the second UL data threshold value based on a plurality of network parameters and a plurality of UE parameters, based on determining to perform the calculation of the second UL data threshold value; comparing an amount of the UL data with the second UL data threshold value; and controlling PCDP aggregation based on a result of the comparison.

Abstract: The disclosure provides methods and apparatuses for performing beam alignment. In some embodiments, a method of performing beam alignment by a user equipment (UE) of a wireless network, includes determining, by the UE based on a plurality of parameters associated with the UE, a first quality level of a connection of the UE in a first orientation and at a geographical location. The connection uses a first beam from at least one network entity of the wireless network. The method further includes determining, by the UE based on the first quality level, a second orientation from a plurality of orientations at the geographical location. The second quality level of the second orientation exceeds the first quality level. The method further includes changing, by the UE, an orientation of the UE from the first orientation to the second orientation.