Method and device for anchor point replacement

Abstract

The present invention discloses a method and equipment for anchor point replacement. The method includes: a target base station receiving an anchor point replacement request message sent by a source base station, wherein the source base station is a serving cell that currently provides services for terminals and has control and decision-making power The corresponding base station, the target base station is the base station corresponding to the auxiliary cell currently serving the terminal controlled by the serving cell, and the anchor point change request message is used to request that the control decision-making right be switched to the target base station; the target base station sends the The source base station sends an anchor point replacement confirmation message, where the anchor point replacement confirmation message is used to confirm the anchor point replacement request message. The anchor point replacement method of the present invention enables the terminal to continue to transmit user data while switching, and can obtain control signaling from multiple base stations to ensure smooth switching of the terminal, reduce switching delay, and improve user experience during switching.

Description

technical field [0001] Embodiments of the present invention relate to the communication field, and more specifically, to a method and device for anchor point replacement. Background technique [0002] At present, wireless communication standardization organizations are conducting discussions based on a delay reduction technology in a handover process of a Long Term Evolution (Long Term Evolution, LTE) system. In the existing LTE system, the main difficulty that brings handover delay is focused on the reconfiguration of the terminal, source base station and target base station. [0003] In the existing technology, the handover delay includes downlink synchronization delay, uplink synchronization delay and reconfiguration completion signaling delay at the target base station after terminal reconfiguration is completed. Wherein, since the downlink synchronization focuses on the synchronization between the terminal and the target base station, this step can be ignored when the ...

AI Technical Summary

Problems solved by technology

[0012] This solution can eliminate the delay caused by establishing an RRC connection during the handover process, but it requires the terminal to support maintaining the RRC connection with the source base station and the target base station at the same time, which has high requirements on the function of the terminal and increases the complexity of the terminal. During the handover process, the data transmission between the base station and the terminal is interrupted, the data transmission efficiency of the system is low, and the user experience is poor

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