A kind of reset mac layer, data transmission method and device

Abstract

The present application relates to a reset MAC layer, data transmission method and device, which are used to reduce transmission interruption time. One of the methods for resetting the MAC layer includes: receiving a first message from a first network device, where the first message includes reset instruction information, and the reset instruction information is used to instruct the MAC layer of the terminal device to perform Reset; reset the MAC layer. The terminal device can be individually instructed to reset the MAC layer through the reset instruction information, so that the terminal device can reset the MAC layer, so as to avoid decryption confusion caused by data packets encrypted by the old key.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and device for resetting a MAC layer and data transmission. Background technique [0002] With the fifth generation mobile communication technology (the 5 th generation, 5G), in the deployment of operators, base stations working in the long term evolution (long term evolution, LTE) system and base stations working in the 5G new radio (new radio, NR) system can be configured together with the terminal The device communicates, that is, the terminal device can be connected to the base station operating in the LTE system (hereinafter referred to as the LTE base station) and the base station operating in the NR system (hereinafter referred to as the NR base station), so that both the LTE system can be used. The frequency of the NR system is also used to transmit data, and the frequency of the NR system is also used to transmit data, thereby improving th...

AI Technical Summary

Problems solved by technology

[0004] However, the PDCP layer corresponding to only one radio bearer may be relocated, but the mobilitycontrolinfo sent by the base station to the terminal device will instruct the terminal device to re-establish the PDCP layer and RLC layer corresponding to all radio bearers, which will cause all The transmission of the radio bearers of all is interrupted for a long time

If mobilitycontrolinfo is not sent, although the base station can separately indicate the reconstruction of the PDCP layer and the RLC layer, the base station cannot separately indicate the reset of the MAC layer, and the terminal device cannot reset the MAC layer.

Images