A data transmission method, device and electronic equipment

Abstract

The present invention relates to the technical field of communications, provides a data transmission method and apparatus, and an electronic device, and can reduce user plane delay while ensuring resource utilization. The method comprises: determining a transmission result of a previous data packet by a terminal; if the transmission result indicates that the transmission is successful or not completed, determining at least two shared basic transmission units according to the terminal ID, the total number of basic transmission units, and a preset mapping rule; if the transmission result indicates a transmission failure and the previous data packet does not meet retransmission conditions, determining at least one basic transmission unit exclusively for the terminal according to the terminal ID, wherein the retransmission conditions are that the data packet is transmitted only once and does not experience queuing delay when the data packet is transmitted; and then, transmitting a data packet to be transmitted to a base station by means of the determined basic transmission unit.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data transmission method, device and electronic equipment. Background technique [0002] In order to meet the delay index of Ultra Reliable and Low Latency Communications (URLLC), an uplink license-free transmission scheme is currently proposed, that is, during the uplink transmission process, the terminal can directly transmit uplink data on pre-configured resources. , eliminating the process of the terminal sending a resource scheduling request to the base station. Compared with the traditional authorization transmission scheme, the uplink authorization-free transmission scheme saves the resource request and authorization time, and reduces the user plane delay. At the same time, considering that URLLC supports machine-type communication and has a large number of users, in order to increase the system capacity, Sparse Code Multiple Access (SCMA) technology can b...

AI Technical Summary

Problems solved by technology

However, since the number of terminals sending data packets to the base station in actual applications is much smaller than the number of all terminals served by the base station, the initial transmission resources and retransmission resources allocated to the terminals may not be actually used, which will cause a lot of waste of resources , so at present, resource utilization and user plane delay cannot be considered when URLLC communication is implemented.

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