Data transmission method and device

Abstract

The embodiment of the invention provides a data transmission method and device, and belongs to the field of communication. Communication resources can be saved, and user experience can be improved. The data transmission method comprises the steps that whether the data amount of first data needing to be transmitted to terminal equipment at present is larger than or equal to a firs data amount threshold value; if the data amount of the first data is larger than or equal to the first data amount threshold value, state transition from RRC_IDEL to RRC_CONNECTED is conducted on the terminal equipment; if the data amount of the first data is smaller than the first data amount threshold value, state transition from RRC_IDEL to RRC_SDT is conducted on the terminal equipment. The data transmission method and device are used for enabling the terminal equipment to be transited to different RRC states according to the data amount of the transmission data between the terminal equipment and a base station.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method and device. Background technique [0002] In the LTE (Long Term Evolution, long-term evolution) network, it is hoped to simplify RRC (Radio Resource Control, radio resource control) processing to the greatest extent, reduce delay, and improve user experience, so LTE only retains two RRC states, namely RRC_IDLE (Radio Resource Control Idle, radio resource control idle state) and RRC_CONNECTED (Radio Resource Control Connected, radio resource control connected state), the RRC_IDEL and RRC_CONNECTED are well known in the industry, for details, please refer to Section 4.2.1 of No. 36.331 agreement in 3GPP ( P19-P20). When the terminal device has no data transmission service, it is usually in the RRC_IDLE state. In this state, the base station does not have the uplink data or downlink data of the terminal device, and only performs some operations such as m...

AI Technical Summary

Problems solved by technology

[0003] With the continuous advancement of Internet of Things technology, the pace of commercialization is gradually accelerating, and there are more and more terminal devices that frequently perform data transmission services with small amounts of data, such as MTC (Machine-Type Communication, machine-to-machine communication) terminals in the Internet of Things equipment, because the terminal equipment will frequently perform RRC state transition, if the terminal equipment still adopts the simplified RRC processing method of the LTE network, it will bring a huge signaling load to the LTE network, and each cell in the LTE network The number of RRC connections is limited. If there are a large number of terminal devices accessing the LTE network at the same time, a large amount of communication resources will be seized, which will reduce the network service quality of traditional mobile terminal devices and affect user experience.

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