A method and a device for establishing a radio access bearer

Abstract

The embodiment of the invention provides a method and a device for establishing a wireless access bearer, the method is applied between a base station and a terminal, and the base station comprises asource base station and a destination base station; the method comprises the steps that when establishment of a wireless access bearer between a source base station and a terminal fails, a destinationbase station receives a switching request sent by the source base station; wherein the communication protocol version number used by the switching request is higher than the communication protocol version number used by the target base station; the destination base station returns a switching request confirmation signal to the source base station; the source base station is used for sending a base station switching command to the terminal based on the switching request confirmation signaling; the destination base station initiates a radio access bearer establishment request to the terminal; wherein the terminal is used for establishing a wireless access bearer with a target base station according to the request for establishing the wireless access bearer; and the destination base stationreceives a feedback result of successful establishment of the radio access bearer returned by the terminal. According to the embodiment of the invention, the situation that the ERAB process needs to be reestablished from the beginning in the prior art is avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and a device for establishing a radio access bearer. Background technique [0002] In the LTE wireless communication system, the terminal needs to establish ERAB (Evolved Radio Access Bearer, Evolved Radio Access Bearer) bearer for business, and as the geographical location of the terminal continues to change, in order to ensure the continuity of the service, the terminal needs to be in different cells to switch. [0003] In actual scenarios, ERAB bearer establishment and handover may occur concurrently, that is, during the ERAB bearer establishment process, the terminal reports a measurement report and needs to perform mobility handover. At this time, the ERAB bearer establishment process needs to be terminated first, and then the mobility handover is performed; during this process, since there is no feedback from the terminal, the terminated ERAB bearer...

AI Technical Summary

Problems solved by technology

[0021] Therefore, when ERAB bearer establishment and handover occur concurrently, the prior art has the problems of high ERAB establishment failure rate, low service connection rate, high re-establishment ratio, and poor network quality

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