A method and an apparatus for establishing a user plane bearer are provided. The method includes receiving a transport layer address supported by a serving gateway (SGW)/packet gateway (PGW) from a mobile management entity (MME), selecting, by a radio access network (RAN) entity, directly the appropriate transport layer address to establish the user plane bearer, or after receiving the transport layer address transmitted by the SGW/PGW, selecting, by the MME, the appropriate transport layer address to establish the user plane bearer, or reporting, by the MME, the obtained transport layer address used by the access entity to the SGW/PGW to establish the user plane bearer.

A solution for establishing a data traffic (e.g., PDU) session for a user equipment (UE) on a network (e.g., 5G cellular network) comprises receiving, by an access node (e.g., AMF), from a network repository (e.g., NRF), identification of a plurality of available session management nodes (e.g., SMFs), wherein the identification of the plurality of available session management nodes indicates whether each session management node supports a first traffic type or a second traffic type (e.g., IPv4 or (IPv6); determining, by the access node, a requested traffic type identified by the UE; determining a match between supported and requested traffic types; based at least on the match, selecting a session management node from the plurality of available session management nodes; and based at least on selecting the session management node, establishing the traffic session with the UE and the selected session management node.

Described herein are methods, devices, media, and systems for managing emergency communications and providing seamless data extraction from a communication device by an emergency service.

Described herein are methods, devices, media, and systems for managing emergency communications and providing seamless data extraction from a communication device by an emergency service.

A message transmitting method of an electronic device supporting to transmit and receive a message of a first format is provided. The message transmitting method includes obtaining information on at least one bearer type allowing the electronic device to transmit or receive a message, determining whether the electronic device transmits or receives a message of a second format different from the first format based on at least one of the at least one bearer type, and transmitting the message using the second format or the first format, in which a specific value is set to be compatible with the second format, based on the determination result.

Embodiments of the present invention relate to an RRC connection method and a serving node. In the embodiments, an RRC connection is established between an anchor node and a UE. Therefore, when a serving node of the UE is switched, a connection between an MME and the anchor node does not change. When the MME needs to send a paging message, the MME does not need to send the paging message to all base stations in a TA area that corresponds to the paging message, thereby effectively reducing signaling load of a core network.

The present technology relates to a transmission apparatus, a transmission method, a reception apparatus, and a reception method that enable channel selection information and time information to be transmitted effectively.

A transmission apparatus acquires channel selection information for selecting a service and time information used for synchronizations on a transmission side and a reception side, generates, as a physical layer frame constituted of a preamble and a data portion, the physical layer frame in which specific information including at least one of the channel selection information and the time information is arranged at a head of the data portion right after the preamble, and transmits the physical layer frame as digital broadcast signals. The present technology is applicable to IP packet broadcasting, for example.

The present technology relates to a transmission apparatus, a transmission method, a reception apparatus, and a reception method that enable channel selection information and time information to be transmitted effectively.

A transmission apparatus acquires channel selection information for selecting a service and time information used for synchronizations on a transmission side and a reception side, generates, as a physical layer frame constituted of a preamble and a data portion, the physical layer frame in which specific information including at least one of the channel selection information and the time information is arranged at a head of the data portion right after the preamble, and transmits the physical layer frame as digital broadcast signals. The present technology is applicable to IP packet broadcasting, for example.

A data transmission method, a device, and a data transmission system are provided to implement local interaction between two terminals when the two terminals are served by different UPF entities. The method performed by a first user plane function entity includes receiving a data packet from a first terminal through an uplink path corresponding to the first terminal, where the data packet carries addressing information of a second terminal; determining path information of a second user plane function entity based on information about the uplink path corresponding to the first terminal and the addressing information of the second terminal; sending the data packet to the second user plane function entity based on the path information of the second user plane function entity; and sending the data packet to the second terminal through a downlink path corresponding to the second terminal.

A method is performed by a wireless device. The method comprises receiving a predetermined number N of Orthogonal Frequency Division Multiplexing (OFDM) symbols of a PHY Protocol Data Unit (PPDU), determining, using the Nth received OFDM symbol, whether the PPDU is a PPDU according to a first wireless network standard or a PPDU according to a second wireless network standard, and decoding the PPDU according to the determined wireless network standard. The predetermined number N corresponds to either a location of a Legacy Signal (L-SIG) field in the PPDU or the location of a symbol of a second field of the second wireless network standard in the PPDU, the second field being different from the L-SIG field. The first and second wireless network standards may each be a Vehicle to Everything standard or an Intelligent Transportation System standard, and may be different from each other.