A system and method for data coding and transmission for improving a retry mechanism are disclosed. A system and method allow the receiver to perform decoding based on increased data bits rather than by repeatedly processing the same retransmitted information, thereby reducing the number of retries and improving the performance of a communication system. Also, with the reduced number of retries, the computing costs of the electronic devices used in the communication systems are reduced. When mobile devices are often used in wireless communication, this is particularly advantageous since the battery life of these devices is significantly improved. Moreover, the system and method provide incremental data transmission and therefore optimize the utilization of channel bandwidth.

This application provides a data transmission method and apparatus. The method includes: obtaining significant bits in an N.sup.th data frame, where N is an integer greater than or equal to 1, a quantity of the significant bits in the N.sup.th data frame is smaller than a quantity of bits in the N.sup.th data frame, and remaining bits other than the significant bits in the N.sup.th data frame are insignificant bits in the N.sup.th data frame; and sending the significant bits in the N.sup.th data frame, and skipping sending the insignificant bits in the N.sup.th data frame. According to the application, on a premise of ensuring voice intelligibility, a transmit end apparatus transmits only the significant bits, to minimize a data transmission amount, thereby improving transmission reliability and coverage.

This application provides a data transmission method and apparatus. The method includes: obtaining significant bits in an N.sup.th data frame, where N is an integer greater than or equal to 1, a quantity of the significant bits in the N.sup.th data frame is smaller than a quantity of bits in the N.sup.th data frame, and remaining bits other than the significant bits in the N.sup.th data frame are insignificant bits in the N.sup.th data frame; and sending the significant bits in the N.sup.th data frame, and skipping sending the insignificant bits in the N.sup.th data frame. According to the application, on a premise of ensuring voice intelligibility, a transmit end apparatus transmits only the significant bits, to minimize a data transmission amount, thereby improving transmission reliability and coverage.

A packet transmission method, including receiving, by a session management function network element, first access network tunnel information and second access network tunnel information that correspond to a first service, and sending a downlink forwarding rule to a user plane function network element, where the downlink forwarding rule includes the first access network tunnel information and the second access network tunnel information, and the downlink forwarding rule indicates the user plane function network element to replicate a received downlink packet of the first service, and send downlink packets of the first service through two paths respectively corresponding to the first access network tunnel information and the second access network tunnel information.

The present disclosure relates to clock switching methods, devices, and storage medium. In one example method, a slave clock device may monitor a working status of a master clock device, and sends first indication information when discovering that the master clock device is in a faulty state, so that a communications device synchronizes with a system clock of the communications device based on time information of the slave clock device.

A system and method for wireless communications, including receiving, by a wireless communication device from a network, a first Transport Block (TB) via unicast and receiving, by the wireless communication device, an indication information indicating that the first TB received via the unicast is same as a second TB transmitted by the network via multicast.

The present invention is directed to data communication systems and techniques thereof. In a specific embodiment, the present invention provides a network connector that includes an interface for connecting to a host. The interface includes a circuit for utilizing two data paths for the host. The circuit is configured to transform the host address to different addresses based on the data path being used. There are other embodiments as well.

This disclosure provides a data sending method and receiving method, and user equipment thereof, and relates to the field of communications technologies. The data receiving method applied to user equipment includes: determining whether a Medium Access Cntrol (MAC) Protocol Data Unit (PDU) received by the user equipment includes a reserved Logical Channel Identity (LCID) value; and when the MAC PDU includes a reserved LCID value, discarding a Service Data Unit (SDU) or sub-PDU corresponding to the reserved LCID value in the MAC PDU.

This disclosure provides a data sending method and receiving method, and user equipment thereof, and relates to the field of communications technologies. The data receiving method applied to user equipment includes: determining whether a Medium Access Cntrol (MAC) Protocol Data Unit (PDU) received by the user equipment includes a reserved Logical Channel Identity (LCID) value; and when the MAC PDU includes a reserved LCID value, discarding a Service Data Unit (SDU) or sub-PDU corresponding to the reserved LCID value in the MAC PDU.

The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system therefor. The present disclosure may be applied to an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or connected car, health care, digital education, retail business, a security and safety-related service, etc.) on the basis of 5G communication technology and IoT-related technology. According to one embodiment of the present invention, provided is a method for a terminal transmitting a data packet in a wireless communication system. The method comprises the steps of: generating a data packet; determining whether to perform duplicate transmission for the data packet; and if it is determined to perform duplicate transmission for the data packet, generating at least two duplicate packets by duplicating the data packet, and transmitting the respective at least two duplicate packets to at least two base stations.