Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose a wireless network and methods to maintain a MA PDU session at a NSACF entity. The method includes determining, by a SMF entity, that a PDU session is the MA PDU session based on an indication from a UE. Further, the method includes indicating, by the SMF entity, that the PDU session is the MA PDU session to the NSACF entity in response to determination. The wireless network may maintain the count accurately even though the PDU session is a MA PDU session.

Abstract: A method for handling network access during by a User Equipment (UE) in a wireless communication system, may include: identifying an initiation of a handover from a 3GPP network to a non-3GPP network; determining whether the handover is initiated during an ongoing call at the UE, or an always-on packet data unit (PDU) session at the UE; suspending at least one suspended real-time transport protocol (RTP) packet on the 3GPP network to prevent transmission of at least one service request to the 3GPP network during the handover based on the handover being initiated during the ongoing call at the UE, and configuring a status of the always-on PDU session as inactive for the 3GPP network to prevent the transmission of the at least one service request to the 3GPP network during the handover based on the handover being initiated during the always-on PDU session at 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) for optimizing a multi-access protocol data unit (MA-PDU) session 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 UE in a wireless network, comprising performing a registration procedure indicating support of a first paging subgrouping; receiving, from an AMF, a negotiated PEIPS assistance information in a registration accept message during registration procedure; using a PEIPS assistance information; establishing an emergency PDU session over a first access network; stopping to use PEIPS assistance information; performing handover procedure of the emergency PDU session from first access network to a second access network; and in case that emergency PDU session is handed over from first access network to second access network, using PEIPS assistance information.

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 timer expiry during an ongoing non-access stratum (NAS) procedure in a wireless network by a UE. The method includes detecting that a last running first timer is stopped or expired. Further, the method includes performing a deregistration procedure by sending a deregistration request message to a network entity in the wireless network when the last running first timer is stopped or expired. Further, the method includes starting a second timer. Further, the method includes determining that the deregistration procedure is not successful in first attempt. Further, the method includes aborting the ongoing deregistration procedure upon determining that the deregistration procedure is not successful in the first attempt. The method can be used to ensure that the UE registers over higher priority PLMN without any delay and extra signalling.

Abstract: A method for controlling Short Message Service (SMS) communication by a Dual Subscriber Identity Module (SIM) Dual Standby (DSDS) device is provided. The method includes detecting that a first SIM is on a voice call and a second SIM is in a standby mode, determining whether page information is received at the second SIM from a server during the voice call of the first SIM and/or the voice call of the first SIM is terminated, immediately sending a refresh registration signal to the server or triggering an event at a DSDS device when the page information is received at the second SIM from the server during the voice call of the first SIM and/or the voice call of the first SIM is terminated and immediately receiving a pending SMS from the server in response to sending the refresh registration signal to the server or triggering the event.

Abstract: According to an example embodiment of the disclosure, a method for performing network slice reselection by a User Equipment (UE) is disclosed. The method comprises identifying allowed network slices within a first Network Slice Simultaneous Registration Group (NSSRG) for first applications at the UE. The method comprises receiving an initialization request from a second application at the UE. The method comprises determining one or more UE Route Selection Policy (URSP) rules for the second application. The method comprises determining whether the network slice required for the second application corresponds to one of the one or more allowed network slices within the first NSSRG. The method comprises transmitting, to a network, a second registration request for registration of the UE to a second NSSRG including the network slice required for the second application based on the URSP rules for the second application.

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, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure relates to a method and an apparatus to trigger deactivation and re-activation of a secondary cell group (SCG) in a multi-radio access Technology (RAT) dual connectivity (MR-DC) network.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose methods for handling a network slice admission control (NSAC) performed by a Network Function (NF) service consumer (200) in a wireless network (1000). The method includes determining that an existing Protocol Data Unit (PDU) session has been handed over from a source access to a target access. Further, the method includes performing a network slice admission control for the PDU session, based on the determination, by interacting the NF service consumer with a Network Slice Admission Control Function (NSACF) entity (300).

Abstract: A method and system in the User Equipment (UE) for maintaining rejected network slice selection assistance information (NSSAI) for Single Network Slice Selection Assistance Information (S-NSSAI) not available due to maximum number of UEs reached per access type. The method comprises receiving a Non-Access Stratum (NAS) message including at least one of a registration accept, registration reject or CONFIGURATION UPDATE COMMAND message along with at least one of rejected Single Network Slice Selection Assistance Information (S-NSSAI(s)) information and a cause for the S-NSSAI not available due to maximum number of UEs reached from a network. Thereafter, the method includes determining by the UE an access type on which the rejected S-NSSAI(s) is applicable based on the received S-NSSAI(s) information and then maintaining a storage of the rejected NSSAI for the S-NSSAI not available due to the maximum number of the UEs reached per access type based on the determination.

Abstract: In an example embodiment, a method of optimizing service delivery performed by a UE operating in EN-DC mode is disclosed. The method comprises detecting that a network service is ongoing at the UE using a first radio access technology (RAT), based on an application request sent by the UE to a network, wherein the first RAT is one of long-term evolution (LTE) and NR. The method further comprises detecting, during the ongoing network service being availed using the first RAT, a frequency of one or more NR network procedures being performed by the UE to be greater than a first threshold frequency. The method further comprises modifying a measurement interval associated with an NR cell measurement procedure, in response to detecting the frequency of the NR network procedures to be greater than the first threshold frequency. Furthermore, the method comprises continuing the Network Service using the first RAT.

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: According to various embodiments, a method performed by a user equipment (UE) in a wireless network may include receiving a steering of roaming connected mode control information (SOR-CMCI) configuration or SOR information from a network entity, initiating a timer in response to receiving the SOR-CMCI configuration or the SOR information from the network entity, identifying whether the UE is in an idle mode before expiry of the timer, in case that the UE is in the idle mode, identifying a condition under which the UE is in the idle mode, and performing, based on the condition, a first operation of allowing the timer to continue running, or a second operation of stopping the timer and selecting a public land mobile network (PLMN).

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose a wireless network and methods to maintain a MA PDU session at a NSACF entity. The method includes determining, by a SMF entity, that a PDU session is the MA PDU session based on an indication from a UE. Further, the method includes indicating, by the SMF entity, that the PDU session is the MA PDU session to the NSACF entity in response to determination. The wireless network may maintain the count accurately even though the PDU session is a MA PDU session.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide a method for selecting route selection descriptor in network (1000) by a CE (100). The method includes receiving a URSP rule configuration from HPLMN apparatus (200). The URSP rule configuration includes a route selection criteria in a block. The block can be, for example, but not limited to a URSP information block of the URSP rule configuration, a traffic descriptor block of the URSP rule configuration, a route selection descriptor block of the URSP rule configuration, and a route validation criteria block of the URSP rule configuration. Further, the method includes detecting an initiation of an application in the UE. Further, the method includes determining that the URSP rule configuration is applicable to the application.

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: 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: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to various embodiments of the present disclosure, a method of operating a user equipment (UE) in a wireless communication system is provided. The method comprises: while the UE is connected to a first cell of a new generation radio access network (NG-RAN), receiving SOR-CMCI (steering of roaming connected mode control information) from the first cell; starting a Tsor-cm timer based on the SOR-CMCI; and in case a cell change of the UE from the first cell to a second cell is detected and the second cell is a cell of an access technology other than NG-RAN; stopping the Tsor-cm timer.

Abstract: The present 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).

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method for controlling standalone access (SA) capability performed by a terminal, includes: detecting that at least one subscriber identity module (SIM) card is available in the terminal; determining whether the at least one SIM card supports SA capability available in the terminal; enabling the SA capability in the terminal based on determining that the at least one SIM card supports the SA capability; and disabling the SA capability in the terminal based on determining that the at least one SIM card does not support the SA capability.