Intra-cell handover method and device

Abstract

The invention relates to the field of communication, and discloses an intra-cell handover method and device. The intra-cell handover method comprises the steps that: a base station receives a UE (user equipment) context modification request message which is sent by a core network, wherein a first context resource corresponding to UE is stored in the base station; the base station generates a second context resource corresponding to the UE according to the UE context modification request message; the base station sends an RRC (Radio Resource Control) connection reconfiguration message to the UE; and if the base station receives a first RRC connection reestablishment request message sent by the UE and an identifier corresponding to a context resource carried in the first RRC connection reestablishment request message is an identifier corresponding to the second context resource, the base station completes RRC connection reestablishment with the UE by using the second context resource and releases the first context resource. The intra-cell handover method and device disclosed by the invention are used for solving the problem that in the prior art, in the case that intra-cell handover is abnormal, a call drop rate of the UE is relatively high, so that communication quality is influenced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for handover within a cell. Background technique [0002] In the LTE (Long Term Evolution) system, for user security, between UE (User Equipment, User Equipment) and eNB (evolved NodeB), as well as between UE and core network MME (Mobility Management Entities, Mobility Management Entity) are all encrypted. [0003] Every time the UE accesses the eNB, the MME sends an initial context setup request (INITIAL CONTEXTSETUP REQUEST) to the eNB, and sends the key KeNB agreed between the core network and the UE to the eNB. After the eNB receives the initial context establishment request, the eNB and the UE perform algorithm negotiation. The eNB side uses the negotiated algorithm and the KeNB to generate keys for the control plane and the data plane. Similarly, the UE side uses the local KeNB and the negotiated algorithm to generate The keys of the control plane and...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for intra-cell handover, which are used to solve the problem in the prior art that in the case of abnormal intra-cell handover, the UE has a high call drop rate and affects communication quality.

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