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: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method of managing an energy performance policy, EPP, for a user equipment, UE, over a network interface of a network, for example a New Radio, NR, network such as a 5G NR network, the method comprising: sending, by the Core Network, CN, for example the Access and Mobility Management Function, AMF, thereof, assistance information on the EPP for the UE to an NG-RAN node and/or to the UE using signalling and/or messages; and managing the EPP for the UE.

Abstract: Disclosed is a method and device for binding a user and a UE in a mobile communication system. A method by a network entity may comprise receiving provisioning information for a user from a service provider, receiving a binding request message including verification information and a digital user identifier from a user equipment completing user authentication for the service provider, verifying the verification information using the provisioning information, and the verification information being successfully verified, binding the digital user identifier with the UE's subscriber information and storing in a subscriber database. The subscriber database may be used to provide a service corresponding to a service invocation to the UE in response to receiving the service invocation including the digital user identifier from the service provider.

Abstract: The present disclosure relates to a communication method and device in a wireless communication system supporting network slicing, and, according to an embodiment of the present disclosure, a method performed by a terminal in a wireless communication system supporting network slicing comprises steps in which: a terminal transmits a session establishment request message for a first network slice through a first access network; a session establishment rejection message is received through the first access network from a network entity for managing a session for the first network slice; and handover to a second access network, which is the preferred access network of the terminal, is determined if the session establishment rejection message includes, as the cause of rejection of the session establishment request, information that indicates the number of sessions exceeding the maximum number of sessions for the first network slice.

Abstract: A method and apparatus of an AMF controller in a wireless communication system are provided. The method and apparatus include: registering a first SIM based on a first registration request message and registering a second SIM based on a second registration request message which has a GUTI for the first SIM. Further, the method and apparatus include: receiving at least one of downlink data and signaling information for the second SIM when a N1 NAS is in CM-Connected state for the first SIM, and transmitting a NAS message indicating at least one of the downlink data and the signaling information for the second SIM over the N1 NAS connection of the first SIM.

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. Disclosed is a method of operating a second telecommunication network to manage access of Disaster Inbound Roamers, DIR, from a first telecommunication network, to the second telecommunication network, comprising the step of: the second telecommunication network broadcasting a message indicating to User Equipments, UEs, of the first telecommunications network that they are able to roam on the second telecommunication network.

Abstract: Embodiments herein provide a method and system of reporting a charging information for a Device-to-Device (D2D) communication established using a wireless network. The method includes recording by a first electronic device the charging information associated with a D2D communication session. The D2D communication session is established between the first electronic device and a second electronic device. Further, the method includes determining by the first electronic device whether the charging information meets charging criteria during the D2D communication session. The charging criteria are generated by a network node in a secure environment of the first electronic device. Further, the method includes reporting the charging information to the network node in the wireless network in response to determining that the charging information meets the charging criteria.

Abstract: The present invention relates to a terminal and a communication method of the same. According to an embodiment of the present invention, a communication method of a remote terminal may include: transmitting, to a relay terminal, a request message comprising ProSe (proximity based service) per-packet priority associated with a TMGI (temporary mobile group identity); and receiving, from the relay terminal, a MBMS traffic transmitted based on the ProSe per-packet priority.

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 method includes transmitting a service authorization request message to a first network device, the first network drive including a proximity-based service (ProSe) function, and receiving a service authorization response message from the first network device. The first terminal is a relay terminal capable of performing a UE-to-network relay function.

Abstract: The present invention relates to a method and apparatus for group communication. In more detail, the present invention relates to a method and apparatus for allowing a terminal to participate in group communication effectively on the move, and a communication method of a base station in a mobile communication system according to the present invention includes receiving Multimedia Broadcast Multicast Service (MBMS) bearer information including a QoS parameter from a Multi-cell/multicast Coordination Entity (MCE); updating bearer information for a terminal using the received MBMS bearer information; making a handover decision of the terminal and transmitting a handover request message including the MBMS bearer information to a Mobility Management Entity (MME) or a second base station which does not support MBMS; transmitting a handover command message from the second base station to the terminal; and forwarding MBMS data to the second base station during a predetermined period.

Abstract: The present invention relates to a terminal and a communication method of the same. According to an embodiment of the present invention, a communication method of a remote terminal may include: transmitting, to a relay terminal, a request message comprising ProSe (proximity based service) per-packet priority associated with a TMGI (temporary mobile group identity); and receiving, from the relay terminal, a MBMS traffic transmitted based on the ProSe per-packet priority.

Abstract: Embodiments herein provide a method and system of reporting a charging information for a Device-to-Device (D2D) communication established using a wireless network. The method includes recording by a first electronic device the charging information associated with a D2D communication session. The D2D communication session is established between the first electronic device and a second electronic device. Further, the method includes determining by the first electronic device whether the charging information meets charging criteria during the D2D communication session. The charging criteria are generated by a network node in a secure environment of the first electronic device. Further, the method includes reporting the charging information to the network node in the wireless network in response to determining that the charging information meets the charging criteria.

Abstract: A unidirectional service implementation method and an apparatus for transmitting media content collected by a terminal in a wireless communication system are provided. The unidirectional service implementation method includes registering with a server by transmitting a registration message, transmitting a first unidirectional service request message including information requesting a first unidirectional service, and establishing a first session based on the first unidirectional service request message.

Abstract: The present invention relates to a terminal and a communication method of the same. According to an embodiment of the present invention, a communication method of a remote terminal may include: transmitting, to a relay terminal, a request message comprising ProSe (proximity based service) per-packet priority associated with a TMGI (temporary mobile group identity); and receiving, from the relay terminal, a MBMS traffic transmitted based on the ProSe per-packet priority.

Abstract: Embodiments herein provide a method and system of reporting a charging information for a Device-to-Device (D2D) communication established using a wireless network. The method includes recording by a first electronic device the charging information associated with a D2D communication session. The D2D communication session is established between the first electronic device and a second electronic device. Further, the method includes determining by the first electronic device whether the charging information meets charging criteria during the D2D communication session. The charging criteria are generated by a network node in a secure environment of the first electronic device. Further, the method includes reporting the charging information to the network node in the wireless network in response to determining that the charging information meets the charging criteria.

Abstract: Embodiments herein provide a method and system of reporting a charging information for a Device-to-Device (D2D) communication established using a wireless network. The method includes recording by a first electronic device the charging information associated with a D2D communication session. The D2D communication session is established between the first electronic device and a second electronic device. Further, the method includes determining by the first electronic device whether the charging information meets charging criteria during the D2D communication session. The charging criteria are generated by a network node in a secure environment of the first electronic device. Further, the method includes reporting the charging information to the network node in the wireless network in response to determining that the charging information meets the charging criteria.

Abstract: The present invention relates to a method and an apparatus for transmitting data to user equipment through not only a current base station cell but also a neighboring base station cell via inter-eNB CA in a wireless communication system.

Abstract: Methods and apparatuses are provided for allocating an internet protocol (IP) address by a packet data network gateway (PGW) in a wireless communication system. A binding update message to request the IP address of a terminal, is received from a serving gateway (SGW). The IP address of the terminal is allocated. A binding acknowledgement message including the IP address is transmitted to the SGW. A dynamic host configuration protocol (DHCP) discover message is received from the SGW. A DHCP offer message including the IP address assigned to the terminal, is transmitted to the SGW.

Abstract: The present invention relates to a method and apparatus for group communication. In more detail, the present invention relates to a method and apparatus for allowing a terminal to participate in group communication effectively on the move, and a communication method of a base station in a mobile communication system according to the present invention includes receiving Multimedia Broadcast Multicast Service (MBMS) bearer information including a QoS parameter from a Multi-cell/multicast Coordination Entity (MCE); updating bearer information for a terminal using the received MBMS bearer information; making a handover decision of the terminal and transmitting a handover request message including the MBMS bearer information to a Mobility Management Entity (MME) or a second base station which does not support MBMS; transmitting a handover command message from the second base station to the terminal; and forwarding MBMS data to the second base station during a predetermined period.

Abstract: Methods and apparatus are provided for releasing an Internet Protocol (IP) address by a Packet Data Network (PDN) GateWay (PGW) in a mobile communication system. The PGW allocates, to a User Equipment (UE), an Internet Protocol version 4 (IPv4) address and an Internet Protocol version 6 (IPv6) address to activate a PDN connection. If the UE releases the IPv4 address: the PGW identifies whether a PDN type associated with the PDN connection is an IPv4/v6, which indicates that the UE is allocated both the IPv4 address and the IPv6 address; the PGW transmits, to a Serving GateWay (SGW), a Binding Revocation message including information indicating release of the IPv4 address with the PDN connection remaining if the PDN type is the IPv4/v6; and the PGW receives, from the SGW, a Binding Revocation acknowledge message to acknowledge release of the IPv4 address.