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Cell reselection method and cell reselection device

A cell reselection and cell technology, applied in the field of communications

Active Publication Date: 2013-08-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this choice of the UE will result in stronger transmit power when the UE initiates services to the serving cell, causing stronger interference to neighboring cells.
That is to say, when the UE is in a heterogeneous network with different transmit powers of cell base stations, according to the existing judgment basis for selecting the serving cell of the UE based on the received signal level, the selected serving cell of the UE may be inappropriate, resulting in When the UE initiates services to the serving cell, the transmission power is relatively strong, which causes strong interference to neighboring cells, resulting in defects such as increased network system interference signals and reduced system throughput.

Method used

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  • Cell reselection method and cell reselection device
  • Cell reselection method and cell reselection device
  • Cell reselection method and cell reselection device

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Experimental program
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Embodiment Construction

[0027] The inventor found through analysis that in the prior art, cell reselection is performed only according to received power without considering path loss, so UE will choose to camp on a macro cell in most cases. When the UE chooses to camp on the macro cell, if the path loss from the UE to the macro cell is greater than the path loss from the UE to the pico cell, that is, the UE needs to use higher transmit power to send data to the macro cell than to the pico cell. Therefore, if the UE wants to initiate a service to the macro cell, it will cause strong interference to the pico cell, thereby reducing the throughput of the system.

[0028] To this end, the present invention provides the following examples. The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0029] Such as figure 1 As shown, it is a flowchart of Embodiment 1 of the cell reselection method of the present ...

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PUM

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Abstract

A cell reselection method and device are disclosed in the embodiments of the present invention, wherein the cell reselection method comprises the steps of: receiving the priority assigned to a cell by a base station; performing cell reselection according to the priority of the cell and a path loss measurement result. The cell reselection device includes: a first receiving unit for receiving the priority assigned to the cell by the base station; a reselection unit for performing cell reselection according to the priority of the cell and the path loss measurement result. The cell reselection method and device, when performing reselection for heterogeneous network cells, are able to avoid the unnecessary uplink interference caused by mis-selecting a cell and improve the throughput of a system.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a cell reselection method and device. Background technique [0002] With the development of mobile communication technology, the mobile communication system has developed to the third generation. In order to maintain a long-term competitive advantage, the long-term evolution system (LTE) standard formulation work is in progress. At the same time, the needs of users are becoming more and more diverse. In order to meet this demand, the system equipment also diversifies, and networks such as family indoor coverage, enterprise-level internal coverage base stations, and some other hotspot coverage emerge as the times require. Such a network may be a home base station (Home NodeB), an access point (Access Point, AP), a private network (Private Network), a micro cell (micro cell), a pico cell (pico cell), and the like. These cells are characterize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/30H04W28/16H04W48/18H04W48/20
CPCH04W36/24
Inventor 于映辉邓天乐李安俭
Owner HUAWEI TECH CO LTD
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