Data transmission method, system, terminal, base station, and computer-readable storage medium

Abstract

The invention discloses a data transmission method, system, terminal, base station and computer-readable storage medium, and relates to the technical field of wireless communication, wherein the method comprises: in response to a connection reconfiguration carrying an enabling configuration information element sent by the base station message, the terminal configures parameters for transmitting data in a first transmission mode, where the first transmission mode is a transmission time interval TTI bundling mode or a non-TTI bundling mode; the terminal sends a connection reconfiguration complete message to the base station after the configuration is completed; The terminal sends a first uplink resource request message to the base station; and in response to the first uplink grant message returned by the base station, the terminal transmits data to the base station in the first transmission mode, where the first uplink grant message carries the first transmission way sign. The present invention can improve the speed of changing the data transmission mode.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a data transmission method, system, terminal, base station and computer-readable storage medium. Background technique [0002] In the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) Long Term Evolution (Long Term Evolution, LTE) application, when the cell edge or the channel is seriously damaged, the LTE voice (Voice over LTE, VoLTE) user's The transmit power of the terminal is limited, therefore, the block error rate (Block Error Rate, BLER) requirement for data transmission cannot be met within a transmission time interval (Transmission Time Interval, TTI). [0003] To address the above problems, 3GPP proposed the concept of TTI bundling (Transmission Time Interval Bundling, TTI-B), which may also be called subframe bundling. Data transmission in a TTI bundling manner means that a data block (Transport Block, TB) is repeated...

AI Technical Summary

Problems solved by technology

[0004] Although 3GPP proposed the concept of TTI-B, it did not give a method on how to activate or deactivate the TTI bundling function

[0007] 1. The terminal needs to leave the base station first, and then randomly access the base station. The terminal performs an intra-cell handover. Therefore, the process of this method is complicated, the delay is large, and the conversion speed between different data transmission methods is slow;

[0008] 2. If the base station has connected to many terminals at this time, the terminal may fail to access during random access, which will affect the normal transmission of data and cause VoLTE users to drop the line, seriously affecting the user experience of VoLTE users

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