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Modem, mobile terminal and method for reporting signal strength

A modem and mobile terminal technology, applied in the field of communications, can solve the problems of inability to filter jitter and small signal jitter, and achieve the effects of reducing the number of wakeups, reducing standby power consumption, and reducing power consumption

Inactive Publication Date: 2010-06-16
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the invention can ensure the smoothing of the downlink small-scale signal jitter, it cannot filter out the uplink small-scale signal jitter, and when the signal jitters at the median value of the interval, this method cannot filter the jitter, resulting in frequent reporting of RSSI values, and when the standby time Frequent wake-up of the main control CPU, not suitable for the environment where the modem is used as the slave module of the mobile terminal

Method used

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  • Modem, mobile terminal and method for reporting signal strength
  • Modem, mobile terminal and method for reporting signal strength
  • Modem, mobile terminal and method for reporting signal strength

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0023] The modem proposed by the present invention includes an RSSI capturing unit, an RSSI reporting unit and a band rejection filter; wherein,

[0024] The RSSI capture unit is used to capture the current RSSI value and send it to the band-stop filter when it changes. Band-stop filter, its processing schematic diagram is as follows figure 1 As shown, it is used to filter the RSSI value sent by the RSSI capture unit. When |current RSSI value-last recorded RSSI value|>=preset RSSI increment threshold, update the recorded RSSI value and add the current The RSSI value is sent to the RSSI reporting unit, which reports to the main control CPU, otherwise the current RSSI value is not processed. The RSSI reporting unit is used to report the RSSI value sent by the band-stop filter to the main control CPU. If it is currently in a standby state, it also needs t...

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Abstract

The invention discloses a modem, a mobile terminal and a method for reporting signal strength. The mobile terminal comprises a main-control CPU and the modem. The modem comprises an RSSI capture unit, an RSSI reporting unit and a band-elimination filter for filtering an RSSI value. The method for reporting the signal strength comprises the following steps: pre-setting an RSSI incremental threshold; when the modem captures that the RSSI value changes, if an absolute value of subtracting the last recorded RSSI value from the current RSSI value is more than or equal to the RSSI incremental threshold, updating the recorded RSSI value and sending the current RSSI value to the RSSI reporting unit, and reporting the current RSSI value to the main-control CPU by the reporting unit; if the absolute value of subtracting the last recorded RSSI value from the current RSSI value is less than the RSSI incremental threshold, not treating the current RSSI value. By adopting the invention, the standby power consumption can be greatly reduced, and the signal bar display can be smoothed.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a modem, a mobile terminal and a method for reporting signal strength when the modem is used as a slave module of the mobile terminal. Background technique [0002] When the main control CPU and the modem module are separated, the modem measures the current pilot signal strength change and reports it to the main control CPU through the AT command, and the main control CPU then processes and displays the number of signal grids accordingly. [0003] Since the mobile terminal is powered by a battery, it has higher requirements on standby power consumption. Due to the frequent movement of the mobile terminal during actual use, the RSSI (Received Signal Strength Indication, received signal strength) measurement signal value changes frequently, resulting in the modem needing to frequently wake up the main control CPU during standby, and report new signal strength values ​​to the ...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04B17/00H04W88/02H04B17/318
CPCY02B60/50Y02D30/70
Inventor 程智翔
Owner NUBIA TECHNOLOGY CO LTD
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