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Small cell switching method and base stations

A technology for small cells and base stations, applied in the field of small cell handover methods and base stations, can solve problems such as heavy resource load and signal quality degradation, and achieve the effects of fast handover, shortening terminal time, and improving experience

Active Publication Date: 2015-03-25
ZTE CORP
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AI Technical Summary

Problems solved by technology

However, when the signal quality between the UE in the DC state and the MeNB is stable, but the signal quality between the UE and the SeNB is degraded (or the resource load of the SeNB is heavy), so that the UE needs to switch out of the small cell of the SeNB, currently There is no solution that enables UE handover to other SeNB cells

Method used

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  • Small cell switching method and base stations

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Embodiment Construction

[0061] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0062] figure 2 It is a schematic flow diagram of a small cell handover method according to an embodiment of the present invention; figure 2 shown, including the following steps:

[0063] Step 201: The primary base station of the macro cell configures the UE accessing the macro cell to perform radio signal measurement and receive the measurement results reported by the UE, or perform signaling interaction with the secondary base station of the small cell accessed by the UE to obtain The load information of the secondary base station, where the load information includes resource usage status information of the UE.

[0064] Here, the main base station and the MME of the core network are provided with an S1-MME interface, which can provide stable and reliable wireless signal coverage for the UE, and exchange control plane signaling a...

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Abstract

The invention discloses a small cell switching method and base stations. The method comprises the steps that when the main base station determines that the signal quality between UE and a small source cell is lower than a first preset threshold value according to a wireless signal measuring result reported by the UE, or when the main base station determines that the load of the small source cell is higher than a second preset threshold value according to the load information acquired from a slave base station, or when the small source cell requires to be switched out of the UE, the main station selects an adjacent small cell with the signal quality and the load condition being capable of meeting the requirement of the UE for the UE according to the measuring result as a target small cell, and the UE is indicated to be switched to the target small cell. According to the technical scheme, the purpose that the UE is stably and quickly switched to the target small cell is achieved.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a small cell switching method and a base station. Background technique [0002] With the continuous evolution of wireless communication technology and protocol standards, the mobile packet service has undergone tremendous development, and the data throughput capability of a single terminal has been continuously improved. Taking the Long Term Evolution (LTE, Long Term Evolution) system as an example, it can support data transmission at a maximum downlink rate of 100 Mbps within a 20M bandwidth; in the subsequent enhanced Long Term Evolution (LTE-A, LTE Advanced) system, the data transmission rate will be Further improvement, it can even reach 1Gbps. [0003] The expansive growth of terminal data traffic has brought enormous pressure and challenges to mobile network service capabilities and deployment strategies. On the one hand, operators need to enhance existing network deploy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/04H04W88/08
CPCH04W36/04H04W36/22H04W36/0058H04W36/08H04W36/302H04W84/045H04W76/15
Inventor 王昕和峰黄亚达
Owner ZTE CORP
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