A method and system for wireless communication between a public transport vehicle and a remote server through at least one external mobile network. At least one router is provided in the public transport vehicle for receiving and transmitting wireless data to and from a stationary communication server outside the public transport vehicle and to and from at least one client onboard the public transport vehicle, wherein router includes a captive portal in order to provide an authentication process for the client(s). The router determines if a stream of wireless data packets received by said router corresponds to at least one of a VoIP stream and a VoWIFI stream. The router then forwards, if it has been determined that the stream of wireless data packets corresponds to at least one of a VoIP stream and a VoWIFI stream.

The use of wireless backhaul poses special challenges for in-vehicle base stations. Users that are connected to an in-vehicle base station expect continuous service, even as the in-vehicle base station passes in and out of different wireless backhaul coverage zones, such as when a train passes from a train station with good coverage to a tunnel with poor coverage. The base station thus needs seamless backhaul handover. A system that enables an in-vehicle base station to receive continuous service across different backhaul coverage zones is needed. To solve this problem, a system enabling handover is described. The system involves double-tunneling mobile device data packets in an ESP-UDP IPsec tunnel encapsulated in a GTP-U tunnel. Traffic is transmitted from a mobile device to a specially configured base station that encapsulates mobile device data packets and sends them to the network via wireless backhaul using an LTE UE modem connection.

The present disclosure relates to a method of data transmission of On-Board Unit for vehicle infotainment service and system using thereof. More particularly, the present disclosure relates to a method of data transmission of a vehicular communication device and a system thereof to receive service advertisement message from other vehicular communication device when failing to receive a service advertisement message that is broadcasted from a Road-Side Unit.

In a network comprising both fixed transmission points and mobile transmission points, the transmission points may transmit discovery reference signals that allow WTRUs to detect and/or synchronize to the transmission points. The fixed and mobile transmission points may transmit discovery reference signals with different characteristics that allow the WTRUs to distinguish between fixed and mobile transmission points. The mobile transmission points may also transmit a separate maintenance reference signal that allows WTRUs to maintain a connection with the mobile transmission point. For networks in which fixed a mobile transmission points operate in different frequency bands, the mobile transmission points may also periodically transmit discovery beacon signals in the frequency band of the fixed transmission points to allow discovery. Conditions may be imposed on WTRUs before the WTRU will transmit to the network a measurement report reporting on a potential transmission point to which it may be switched. Such conditions may include the speed of a WTRU relative to the transmission point with which it is currently associated, the speed of the WTRU relative to the newly discovered transmission point or both.

Provided are a method by which a first device performs wireless communication an apparatus for supporting same. The method may comprise: receiving, from the base station through a physical downlink control channel (PDCCH), a downlink control information (DCI) related to the SL HARQ process ID, wherein the DCI includes information related to a second SL grant for retransmission of the MAC PDU and information related to a second PUCCH resource, wherein, based on the buffer related to the SL HARQ process ID being flushed, the first device does not transmit the MAC PDU to the second device based on the second SL grant, and the first device does not transmit SL HARQ feedback information related to the MAC PDU to the base station based on the second PUCCH resource.

Systems and methods for relocating network nodes are provided herein. A network node can determine that relocation of at least one access node in the access network is required. An access node, such an IAB node with mobile capabilities, canbe selected to be relocated from a first position to a second position. Relocation messages and parameters can be signaled between the network and the access node.

A method for triggering an action of a vehicle including changing a position of a device relative to the vehicle, detecting the change in the position of the device, and triggering a configurable action in the vehicle based on the detected change in the position of the device.

Communication network architectures, systems and methods for supporting a network of mobile nodes. As a non-limiting example, various aspects of this disclosure provide communication network architectures, systems, and methods for supporting a dynamically configurable communication network comprising a complex array of both static and moving communication nodes (e.g., the Internet of moving things). More specifically, systems and methods for vehicular positioning based on the round-trip time of DSRC messages in a network of moving things.

A radio unit (RU) in a directional communication network establishes a connection with a first antenna among two antennas of a first TE in a first moving object that first enters a serving duration of the RU according to a network access request from the first antenna, and when receiving the network access request from a second antenna among two antennas of a second TE in a second moving object that next enters the serving duration, the RU processes the network access request from the second antenna based on network access priority of the second antenna and network access priority of the first antenna to which the connection is established.

A method for identifying a user device includes: receiving uplink messages sent at least twice by the same user device; on the basis of the uplink messages sent at least twice, determining remote radio unit (RRU) positional information of each RRU that receives an uplink message; judging whether a proportion of a number of different pieces of the RRU positional information among at least two pieces of the RRU positional information to a total number of the at least two pieces of the RRU positional information reaches a preset proportion threshold; when the ratio does not reach the preset ratio threshold, determining that the user device is a common user device; and when the ratio reaches the preset ratio threshold, determining that the user device is a fast-moving user device.