Data transmission method and device of 5G system

Abstract

The invention relates to the field of communication, in particular to a data transmission method and device of a 5G system. The data transmission method is used for reducing the load of the system andimproving the processing efficiency, and comprises the steps of: determining a number of data packets to be sent, and determining a threshold value interval corresponding to the current load of the system; then converging the data packets to be sent according to a preset threshold value when determining that the number of the data packets reaches the preset threshold value corresponding to the threshold value interval, and generating a converged data packet; and finally, sending the converged data packet to a receiver, and triggering the receiver to analyze the converged data packet. Thus, the data packets to be sent can be converged into the converged data packet and then sent to the receiver, the message primitive processing number of protocol interlayer interaction is reduced, the header adding process is simplified, the convergence condition is accurately limited, the effectiveness of the processing result is ensured, the load of a system processor is reduced, the processing efficiency is improved, the scheduling frequency is reduced, the operation overhead of the system is reduced, and the resource consumption is reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method and device for a 5G system. Background technique [0002] The fifth generation mobile communication system (Fifth Generation, 5G)-new wireless technology (New Radio, NR) user plane protocol mainly includes packet data convergence protocol (Packet Data Convergence Protocol, PDCP), radio link control (Radio Link Control, RLC) protocol and Media Access Control (Media Access Control, MAC) protocol. When the user equipment (User Equipment, UE) transmits uplink data to the base station, the data in the UE flows from the upper protocol layer to the lower protocol layer. Generally speaking, the data entity from / to the upper protocol layer is called a service data unit (ServiceData Unit) , SDU), and the corresponding entity to / from the lower protocol layer is called a protocol data unit (Protocol DataUnit, PDU). [0003] During uplink transmission, the PDCP l...

AI Technical Summary

Problems solved by technology

[0005] The current protocol layer processing flow of 5G NR, when a large number of data packets are generated, because the central processing unit (Central Processing Unit, CPU) load is proportional to the number of PDCP PDUs to be processed, when the data packets are frequent, many involved in the protocol process A large number of data packets exchange primitive messages between protocol layers, and the number of memory copies increases, memory release and application are frequent, increasing the CPU load of the device, resulting in system instability

At present, these functions are realized through hardware accelerators, and the high-frequency access acceleration of data packets dramatically increases system load and resource consumption.

Images