The present disclosure relates to a research that has been conducted with the support of the “Cross-Departmental Giga KOREA Project” funded by the government (the Ministry of Science and ICT) in 2017 (No. GK17N0100, millimeter wave 5G mobile communication system development). The present disclosure relates to a communication technique for convergence of a 5G communication system for supporting a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related service, etc.) on the basis of a 5G communication technology and an IoT-related technology.

This application provides a data transmission method and communications apparatus, to improve transmission efficiency. The method may include obtaining, by a MAC entity of a first communications device from an upper layer, first data on each of at least one first logical channel and second data on each of at least one second logical channel, where a service type or a destination address of the first data is different from a service type or a destination address of the second data. The method may also include generating, by the first communications device, a MAC PDU, where the MAC PDU includes the first data on each first logical channel and the second data on each second logical channel; and sending, by the first communications device, the MAC PDU through a direct link.

A method routes packets from a source to a destination across an IP network having a plurality of nodes (including the source and destination), and a plurality of network segments interconnecting the plurality of nodes. The source and destination are configured to use a given service. To those ends, the method receives information relating to the given service, and forms a path between the source and the destination. The path includes a) at least one intermediate node between the source and the destination and b) a plurality of specific network segments extending from the source to the destination. The plurality of specific network segments are a sub-set of the plurality of network segments. To form the path, the method assigns the plurality of specific network segments to the network path between the source and the destination as a function of the information relating to the given service.

A distributed radio frequency communication system facilitates communication between a wireless terminal and a core network. The system includes a remote radio unit (RRU) coupled to at least one antenna to communicate with the wireless terminal. The RRU includes electronic circuitry to perform at least a first portion of a first-level protocol of a radio access network (RAN) for communicating between the wireless terminal and the core network. The system also includes a baseband unit (BBU) coupled to the core network, and configured to perform at least a second-level protocol of the RAN. A fronthaul link is coupled to the BBU and the RRU. The fronthaul link utilizes an adaptive fronthaul protocol for communication between the BBU and the RRU. The adaptive fronthaul protocol has provisions for adapting to conditions of the fronthaul link and radio network by changing the way data is communicated over the fronthaul link.

A method for changing an identifier of a basic service set (BSS) served by an access point (AP) includes determining a first value of the identifier of the BSS, transmitting a first physical (PHY) protocol data unit (PPDU) with a first BSS identifier field in a PHY header of the first PPDU set to a pre-specified value, transmitting at least one first management frame including a second BSS identifier field in a frame body of the at least one first management frame set to the first value, and transmit at least one second PPDU with the first BSS identifier field in the PHY header set to the first value when the AP is able to start using the first value to set the first BSS identifier field in the PHY header of PPDUs transmitted by the AP.

In data communication systems, data packet processing for transmission and reception may go through different stages such as segmentation or packing of the data packets on the transmission side and duplicate detection, reordering, and reassembly on the reception side. For reliable data transmission between the peers, acknowledgement based retransmission protocol known as Automatic Repeat Request may be used where each retransmission can further segment the previously transmitted data packets. This type of data processing may lead to high memory requirements and high processing requirements. A method and apparatus are disclosed that maintain additional information about the data packets which enables virtual segmentation and packing on the transmitter side and on the receiver side, virtual duplicate detection, reordering and reassembly. Performing the segmentation, packing, duplicate detection, reordering and reassembly operations in virtual manner reduce the memory and processing requirements and this may lead to reduced power consumption and improved user experience.

A system includes a host processor, which has a host memory and is coupled to store data in a non-volatile memory in accordance with a storage protocol. A network interface controller (NIC) receives data packets conveyed over a packet communication network from peer computers containing, in payloads of the data packets, data records that encode data in accordance with the storage protocol for storage in the non-volatile memory. The NIC processes the data records in the data packets that are received in order in each flow from a peer computer and extracts and writes the data to the host memory, and when a data packet arrives out of order, writes the data packet to the host memory without extracting the data and processes the data packets in the flow so as to recover context information for use in processing the data records in subsequent data packets in the flow.

Apparatus, methods, and computer program products for disaggregated UE are provided. An example method includes establishing, with a second UE, a connection session based on a configuration profile, the configuration profile including a mapping of an upper-layer protocol to a lower-layer protocol, one or more security policies, and a routing for one or more services associated with the second UE to a protocol stack. The example method further includes managing a connection between the second UE and a third device via the connection session.

Apparatus, methods, and computer program products for disaggregated UE are provided. An example method includes establishing, with a second UE, a connection session based on a configuration profile, the configuration profile including a mapping of an upper-layer protocol to a lower-layer protocol, one or more security policies, and a routing for one or more services associated with the second UE to a protocol stack. The example method further includes managing a connection between the second UE and a third device via the connection session.

A transmitting apparatus, a receiving apparatus, and a method of signal processing are provided. The transmitting apparatus includes at least one processor configured to implement: a packet generator which generates a packet including a header and a payload, based on an input stream; and a signal processor which signal-processes the generated packet. The header includes a base header, and the base header includes various fields indicating at least one of a packet type, and a value indicating that the packet transmits one single complete input packet, a segment of an input packet, or a plurality of input packets. The fields included in the base header may also indicate presence of an additional header and a substream identifier.