Disclosed are a method and device for implementing an ad hoc network routing protocol in a multi-agent system. The device includes a trajectory information acquisition module, a data packet delivery module, a delivery confirmation module, a data packet forwarding module, a data transmission feedback module and a data storage module. The method includes: acquiring a separation and rendezvous timing table and an adjacency matrix of an ad hoc network composed of multiple agents at a given moment; if a source node has message sending requirement, performing data packet delivery and delivery confirmation based on the separation and rendezvous timing table and the adjacency matrix; and performing data packet forwarding and transmission status feedback by a non-source node.

To provide a relay apparatus for relay communication between a wireless base station and a communication terminal, the relay apparatus including: a relay function management switch for switching from on to off a relay function for relaying communications between the wireless base station and the communication terminal based on the satisfaction of a predetermined condition; and a signal transmitter for transmitting, to the communication terminal, establishing a wireless communication connection with the relay apparatus, a signal to execute handover to a handover destination which is identified before the predetermined condition has been satisfied if the predetermined condition has been satisfied.

There is provided an apparatus, said apparatus comprising means for providing a request to an application client from a server for the application, or receiving a request from the application client at the server, for uplink transmission of cooperative awareness messages from the application client to a network, determining requirements associated with the application for cooperative awareness messages, based on the requirements, providing a request from the server to the network for resources and QoS parameters for uplink transmission of the cooperative awareness messages from the application client to the network, receiving at the server an indication of the availability of resources from the network; determining, based on the application requirements and the availability of resources, criteria for use in determining which of the cooperative awareness messages to provide to the network and providing the criteria to the application client from the server.

A method of handling an identifier conflict in a relay communication access service comprises receiving a relay communication request message from a remote terminal, obtaining an identifier of the remote terminal from the relay communication request message, assigning preliminary identifiers for identifier conflict handling based on the identifier of the remote terminal, and transmitting a relay communication response message including preliminary identifier information for the assigned preliminary identifiers to the remote terminal.

A communication system is disclosed. The communication system includes a first core network that is mobile, and a radio access network, which includes a first central unit and one or more distributed units. The first central unit includes a first router containing a multi-level security guard configured to route user plane data and control plane data to the first core network. The first central unit further includes a transceiver, a control plane interface coupled to the core network, and a second router configured to communicate user plane data and control plane data to one or more first distributed units. The central unit configures at least one network function of radio resource control (RRC). The one or more distributed units configures at least one network function of packet data convergence protocol (PDCP), radio link control (RLC), medium access control (MAC), and physical link (PHY) network functions.

Systems and methods for coordinating and controlling vehicles, for example heavy trucks, to follow closely behind each other, or linking, in a convenient, safe manner and thus to save significant amounts of fuel while increasing safety. In an embodiment, on-board controllers in each vehicle interact with vehicular sensors to monitor and control, for example, relative distance, relative acceleration/deceleration, and speed. Additional safety features in at least some embodiments include providing each driver with one or more visual displays of forward and rearward looking cameras. Long-range communications are provided for coordinating vehicles for linking, and for communicating analytics to fleet managers or others.

A method and system for handling roaming in train-to-trackside wireless networks including: receiving, by an access point (AP.sub.i) currently associated with a train access terminal installed on-board a train, radio measurements of signals received by the train access terminal from access points of the train-to-trackside wireless network; determining a next access point (AP.sub.next) providing the highest signal quality (maxSQ); evaluating compliance with roaming criteria including: the next access point (AP.sub.next) is included in a list of candidate access points (N.sub.i); the time elapsed since the last roaming exceeds a minimum permanency time (t.sub.p); the highest signal quality (maxSQ) exceeds the signal quality (SQ(i)) of the access point (AP.sub.i) by a roaming margin; if the roaming criteria are met, sending a roaming command instructing the train access terminal to roam to the next access point (AP.sub.next).

Systems and methods for Radio Access Network dynamic functional splits are de-scribed. In one embodiment, a method may be disclosed for Radio Access Network dynamic functional splits, comprising: determining, by a user for a RAN, a first split of different functionalities between a central Unit (CU) and a Distributed Unit (DU), the functionalities including a Radio Resource Controller (RRC), a Packet Data Convergence Protocol (PDCP), a Radio Link Control (RLC); a Medium Access control (MAC), a Physical Layer (PHY), and a Radio Frequency Unit (RF); and wherein the system is able to provide different splits of the functionalities based on factors such as user count, fronthaul capacity, fronthaul usage, required baseband processing capacity, and latency.

Certain aspects of the present disclosure provide techniques for managing a hybrid automatic repeat request (HARQ) buffer. An example method that may be performed by a first user equipment (UE) includes dropping, in response to a HARQ budget that is exceeded relative to a number of active HARQ processes, according to one or more rules, at least one of the transmissions or one or more transport blocks (TBs) associated with the at least one of the transmissions from being processed. The method further includes processing the remaining transmissions and taking one or more actions based on the processed remaining transmissions.

An apparatus for controlling platooning controls timing of transmitting or receiving a message. The apparatus includes a communication device to communicate with other vehicles in a platoon and to transmit a message, which is received from the other vehicles, in a form of a full message and includes a controller to generate logic message for the platooning, to check omission of the message from the full message received using the communication device, and to adjust a latency of the message when the omission of the message occurs.