Communication methods and device in wireless network and system

Abstract

The embodiment of the invention discloses communication methods and device in a wireless network and a system. The communication method in the wireless network comprises the following steps: terminalequipment establishes dual connection with first access network equipment and second access network equipment, wherein the connection between the terminal equipment and the first access network equipment contained in the dual connection is radio resource control (RRC) connection; the terminal equipment receives first configuration information sent by the first access network equipment, wherein thefirst configuration information comprises signaling radio bearer (SRB) configuration information of the second access network equipment and a triggering condition for starting the SRB configuration information; and when the triggering condition is satisfied, the terminal equipment starts the SRB configuration information of the second access network equipment to establish the RRC connection withthe second access network equipment. The recovery of a dual connection working mode is accelerated, and a demand for low delay is satisfied.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a communication method, device and system in a wireless network. Background technique [0002] In the fourth generation (4th Generation, 4G) mobile communication, the reliability of the radio resource control (Radio Resource Control, RRC) connection is the basis for ensuring the information interaction between the control plane and the user plane. Radio link problems can cause RRC connections to be unreliable, thereby affecting communication quality. In order to ensure the reliability of the RRC connection, a dual connectivity (Dual Connectivity, DC) architecture is introduced in 4G mobile communications. Taking the Long Term Evolution (LTE) system as an example, under the DC architecture, the terminal device can communicate with the primary access network device (such as the primary base station MeNB (Master eNB)) and the secondary access network device (suc...

AI Technical Summary

Problems solved by technology

[0009] However, the data transmission is temporarily interrupted during the RRC connection re-establishment process between the terminal device and the main access network device, and the resulting data interruption delay is undesirable for the URLLC service

At the same time, the addition or modification of auxiliary access network equipment needs to be completed through the RRC connection reconstruction process, which prolongs the recovery time of the dual connection architecture and is not conducive to the realization of URLLC service target performance

Therefore, the delay caused by the existing dual connection recovery process cannot meet the requirements of 5G mobile communication services, especially the low delay requirements of URLLC services

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