Handover method and base station

Abstract

Embodiments of the present invention provide a handover method and a base station. The handover method may include: when the UE needs to be handed over, acquiring bearer context information of the UE on the first base station; sending a handover request to the target base station, where the handover request carries bearer context information; receiving a handover that agrees to handover returned by the target base station After the response, a handover command is sent to the UE to make the UE handover to the target base station. The handover method may also include: when the UE needs to be handed over, sending a handover request to the target base station; after receiving a handover response returned by the target base station that agrees to handover, sending a handover instruction to the first base station that provides services for the UE, so that The first base station forwards data to the target base station; and sends a handover command to the UE so that the UE is handed over to the target base station. Based on the above technical solution, it is possible to quickly implement handover of the UE under the condition of using multiple carriers, and quickly restore the current service of the UE, thereby improving user communication experience.

Description

technical field [0001] The present invention relates to the field of wireless communication, and more particularly, to a handover method and a base station in the field of wireless communication. Background technique [0002] The 3GPP LTE-A system has agreed to use carrier aggregation technology as a method to expand system bandwidth to support peak data rates up to 1G. The main idea of ​​carrier aggregation is to aggregate multiple component carriers into a carrier with a larger bandwidth to support high-speed data rates. [0003] A user equipment (User Equipment, UE) may aggregate carriers from two different sites, so as to implement carrier aggregation between different sites. For example, when the UE is at the cell edge, the UE may aggregate a low-frequency carrier from a macro base station and a high-frequency carrier from a relay station (RelayNode, RN). [0004] When the UE uses carriers from different sites, one radio resource connection (RadioResourceControl, RRC)...

AI Technical Summary

Problems solved by technology

That is to say, first, when the UE is receiving services from multiple sites based on the carrier aggregation technology, if the UE needs to be handed over, it is not possible to quickly handover the UE and quickly restore the current service of the UE in related technologies; Second, regardless of whether the UE is using carrier aggregation technology or not, if the UE wants to use carrier aggregation technology after handover, it is not possible to directly switch the UE to two sites and quickly restore the current service of the UE in related technologies

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