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Mobile terminal cell search method and device

A cell search, mobile terminal technology, used in wireless communication, access restriction, electrical components, etc.

Active Publication Date: 2019-12-03
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The embodiment of the present invention solves the problem of how to quickly select a cell with the best signal quality

Method used

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  • Mobile terminal cell search method and device
  • Mobile terminal cell search method and device
  • Mobile terminal cell search method and device

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Embodiment Construction

[0034] In the prior art, when the LTE mobile terminal is in the non-LTE main mode connection state, if there are too many LTE frequencies to be measured, it will take a long time to report all the measurement results of multiple frequency points. handover after the measurement result, which makes the cell handover time too long. If the cell switching is performed before all the measurement results of all LTE frequencies to be measured are reported, it may result in switching to a cell whose signal quality is not optimal.

[0035] In the embodiment of the present invention, after receiving the frequency points to be measured sent by the network side, the frequency points to be measured are sorted according to the signal strength values ​​corresponding to the frequency points to be measured, and the N frequency points to be measured with the largest signal strength values ​​are selected . According to the order of the signal strength value from large to small, the cell is searc...

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Abstract

The present invention relates to a mobile terminal cell searching method and device. The cell searching method comprises the steps of receiving the to-be-measured frequency points sent by a network side; calculating the signal intensity values of all to-be-measured frequency points, selecting the first N to-be-measured frequency points of which the signal intensity values are maximum; according to the order of the signal intensity values from large to small, carrying out the cell searching on the N selected to-be-measured frequency points orderly. By the method and the device, a cell having the optimal signal quality can be selected rapidly.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a mobile terminal cell search method and device. Background technique [0002] The Long Term Evolution (LTE) communication standard is one of the quasi-4G standards mainly promoted in the field of mobile communication today. LTE mobile terminals in the existing market usually support multiple communication modes such as GSM, GPRS, EDGE, CDMA and LTE. [0003] During the use of the LTE mobile terminal, there will often be a situation of switching back and forth between different network modes. For example, when the user makes a call, the LTE mobile terminal is in the GSM network mode, and when the user accesses the RAN network, the LTE mobile terminal is in the LTE network mode. [0004] In order to achieve fast switching between various modes, the LTE mobile terminal needs to measure the signal of the slave mode in the master mode. Wherein: the current network mode of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16
CPCH04W48/16
Inventor 刘腾飞薛丰廷
Owner SPREADTRUM COMM (SHANGHAI) CO LTD