Handover method and base station

Abstract

The embodiment of the invention provides a handover method and a base station. The handover method can comprise the following steps of: when the handover of user equipment (UE) is required, acquiring the bearer context information of the UE on a first base station; transmitting a handover request to a target base station, wherein the handover request carries the bearer context information; and after a handover response indicating agreement on the handover is received from the target base station, transmitting a handover command to the UE to realize the handover of the UE to the target base station. The handover method also can comprise the following steps of: when the handover of the UE is required, transmitting the handover request to the target base station; after the handover response indicating the agreement on the handover is received from the target base station, transmitting a handover instruction to the first base station providing service for the UE to enable the first base station to forward data to the target base station; and transmitting the handover command to the UE to realize the handover of the UE to the target base station. On the basis of the technical scheme, the handover of the UE can be quickly realized under a multi-carrier condition, and a current service of the UE can be quickly recovered, so that the communication experiences of a user can be improved.

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 (Relay Node, RN). [0004] When the UE uses carriers from different sites, one radio resource connection (Radio Resource Control, R...

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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