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Method for scanning power of multi-mode terminal and multi-mode terminal

A multi-mode terminal and power technology, which is applied in the field of communication, can solve the problems of long time-consuming power scanning, etc., and achieve the effect of improving user experience and speed

Active Publication Date: 2020-07-31
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention solves the problem that power scanning takes a long time when the multi-mode terminal is turned on

Method used

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  • Method for scanning power of multi-mode terminal and multi-mode terminal
  • Method for scanning power of multi-mode terminal and multi-mode terminal
  • Method for scanning power of multi-mode terminal and multi-mode terminal

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Embodiment Construction

[0032] In the prior art, a multimode terminal needs to perform a power scan when it is turned on to reside in a suitable cell, and each network in the multimode (such as TDD-LTE network / FDD-LTE network / WCDMA network / TDS_CDMA network / GSM Network) mode requires a power scan.

[0033] The current GSM network power scans to search for the signal strength of a frequency point, and judges whether the frequency point is valid, which is usually realized by calculating a Received Signal Strength Indication (RSSI) from a time-domain signal.

[0034] TD-SCDMA network power scans to search the signal strength of the frequency point, and judges whether the frequency point is valid. There are usually two methods, one: use the time domain signal to calculate the RSSI method, but because there are more frequency points than GSM, this method needs to be carried out Improvement, first calculate the signal strength of the frequency point with a step of 800KHz, lock the frequency point range with...

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Abstract

The invention discloses a multi-mode terminal power scanning method and device. The multi-mode terminal comprises at least two wireless network communication units, the at least two wireless network communication unit comprises a first network communication unit, and the method comprises the following steps: each of the at least two wireless network communication units receives a radio frequency signal from a corresponding network frequency band, and converts the radio frequency signal into a digital signal; the first network communication unit performs the Fourier transformation on the digital signal at each network frequency band; and the channel data corresponding to a frequency point is stored in a frequency point list of a memory when determining that the power corresponding to the frequency point of a channel of each network frequency band is greater than or equal to a set threshold value after the Fourier transformation. The first network communication unit performs the Fourier transformation on the obtained digital signal of each network frequency band so that the power scanning speed of each of multiple networks can be improved when the multi-mode terminal is turned on, and the user experience is greatly improved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method for scanning power of a multi-mode terminal and a multi-mode terminal. Background technique [0002] With the continuous development of communication technologies, existing user equipment (User Equipment, UE) is usually a multi-mode terminal, which can support multiple different network modes. User terminals can switch between different network modes. For example, for TDD-LTE or FDD-LTE mobile terminals, voice transmission is performed under 3G / 2G, and data transmission is performed under 4G. [0003] In the prior art, a multimode terminal needs to perform a power scan when it is turned on to reside in a suitable cell, and each network in the multimode (such as TDD-LTE network / WCDMA network / TDS_CDMA network / GSM network) mode Power scanning is required, so it takes a long time to complete power scanning in multiple network modes, and the user experience...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02H04W48/16
CPCH04W24/02H04W48/16
Inventor 田旭
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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