CN101742534A - Modem, mobile terminal and method for reporting signal strength - Google Patents
Modem, mobile terminal and method for reporting signal strength Download PDFInfo
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- 238000003379 elimination reaction Methods 0.000 claims abstract description 12
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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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
The present invention relates to the field of communications technologies, and 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
When the main control CPU and the modem module are separated, the modem measures the current pilot signal intensity change and reports the current pilot signal intensity change to the main control CPU through an AT command, and the main control CPU processes and displays the signal lattice number according to the current pilot signal intensity change.
The mobile terminal is powered by a battery, so that higher requirements are placed on power consumption of the mobile terminal. In the actual use process of the mobile terminal, the mobile terminal is moved frequently, and the change of the measured Signal value of the RSSI (Received Signal strength) is frequent, so that the modem needs to wake up the main control CPU frequently during standby and report a new Signal strength value to the CPU for processing, and the CPU frequently works in a working state, thereby increasing the average power consumption during standby.
In addition, when the RSSI value changes with small amplitude jitter near the critical value of the signal grid number, the user feels that the mobile terminal signal grid number jumps more frequently, and the user is likely to have the impression that the mobile terminal signal is unstable. Chinese patent No. 101150806a discloses a method for smoothing PHS mobile phone signal thresholds, which distinguishes the up and down directions of signal intensity variation for a fixed threshold interval, where the actual down threshold is the actual threshold — the smoothness set artificially; when the signal goes down, neglecting the signal less than the smoothness degree, and keeping the signal lattice number unchanged; the signal is not processed when going up. Although the method can ensure that the downlink small-amplitude signal jitter is smooth, the uplink small-amplitude signal jitter cannot be filtered, and when the signal jitters in the interval, the method cannot filter the jitter, so that the RSSI value is frequently reported, and the master control CPU is frequently awakened in a standby state, so that the method is not suitable for the environment that the modem is used as a slave module of the mobile terminal.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a modem and a mobile terminal applying the modem, which realize the function of filtering the RSSI value by the modem and report the RSSI value meeting the filtering condition; the method for reporting the signal strength when the modem is used as a slave module of the mobile terminal is further provided, and standby power consumption and smooth signal lattice display are reduced by the method for reporting after the RSSI value is filtered.
In order to solve the technical problems, the invention adopts the following solutions:
a modem comprises an RSSI capturing unit, an RSSI reporting unit and a band elimination filter, wherein the band elimination filter is used for filtering RSSI values captured by the RSSI capturing unit, and updating the recorded RSSI values and sending the current RSSI values to the RSSI reporting unit when the current RSSI values-the RSSI values recorded last time | > (a preset RSSI increment threshold value) are used for reporting to a main control CPU; otherwise, the current RSSI value is not processed.
A mobile terminal comprises a main control CPU and a modem, wherein the modem comprises an RSSI capturing unit and an RSSI reporting unit,
the main control CPU is used for setting the RSSI increment threshold value and sending the RSSI increment threshold value to the modem; the RSSI reporting unit is also used for processing and displaying the signal lattice number according to the RSSI value reported by the RSSI reporting unit;
the modem also comprises a band elimination filter which is used for filtering the RSSI value captured by the RSSI capturing unit, and when the current RSSI value-the RSSI value recorded last time | > (RSSI increment threshold value), the recorded RSSI value is updated and sent to the RSSI reporting unit, and the current RSSI value is reported to the main control CPU; otherwise, the current RSSI value is not processed.
When the mobile terminal is in a working state, the main control CPU sets the RSSI increment threshold value to be a value between 0 and the RSSI interval value of the adjacent lattice number; and when the mobile terminal is in a standby state, setting the RSSI increment threshold value to be the maximum RSSI value.
A method for reporting signal strength when a modem is used as a slave module comprises the following steps:
presetting an RSSI increment threshold;
when the modem captures that the RSSI value changes: if the current RSSI value-the last recorded RSSI value | > -the RSSI increment threshold value, updating the recorded RSSI value, sending the current RSSI value to an RSSI reporting unit, and reporting the current RSSI value to a main control CPU; otherwise, the current RSSI value is not processed.
In the method, when the mobile terminal is in a working state, the RSSI increment threshold value is set to be a value between 0 and the RSSI interval value of the adjacent lattice number.
In the above method, when the mobile terminal is in the standby state, the RSSI increment threshold is set as the maximum RSSI value.
The invention has the following beneficial effects:
1) the invention reduces the awakening times of the main control CPU in the standby state by filtering the report of the irrelevant signal strength change value acquired by the modem, thereby reducing the power consumption in the standby state; the small amplitude jitter of the signal lattice number can be prevented when the RSSI value changes in the small amplitude jitter near the critical value of the signal lattice number, and the display of the signal lattice number is smoothed.
2) Since the user rarely pays attention to the signal strength of the mobile terminal in the standby state, the RSSI incremental threshold can be set as the maximum RSSI value when the mobile terminal is in the standby state by applying the method and the device, so that the modem can filter out all the acquired RSSI values without waking up the main control CPU, and the standby power consumption is further effectively reduced.
Drawings
Fig. 1 is a diagram illustrating a processing principle of a band-stop filter in an embodiment of the present invention;
fig. 2 is a flowchart of a method for automatically reporting signal strength according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and examples:
the modem provided by the invention comprises an RSSI capturing unit, an RSSI reporting unit and a band elimination filter; wherein,
the RSSI capturing unit is used for capturing the current RSSI value and sending the RSSI value to the band-stop filter when the RSSI value changes. The processing schematic diagram of the band-elimination filter is shown in fig. 1, and the band-elimination filter is used for filtering the RSSI value sent by the RSSI capturing unit, updating the recorded RSSI value and sending the current RSSI value to the RSSI reporting unit when | the current RSSI value-the last recorded RSSI value | > | is a preset RSSI increment threshold value, and reporting the current RSSI value to the main control CPU, otherwise, the current RSSI value is not processed. And the RSSI reporting unit is used for reporting the RSSI value sent by the filtered band elimination filter to the main control CPU, and if the RSSI value is in a standby state at present, an event for awakening the main control CPU needs to be initiated at the same time.
The mobile terminal provided by the invention comprises a main control CPU and a modem, wherein the main control CPU and the modem are interacted through AT commands; wherein,
the main control CPU is used for controlling the behaviors (including dialing, inquiring signal strength and the like) of the modem through AT commands; setting an RSSI increment threshold value and sending the RSSI increment threshold value to a modem through an AT command; and processing and displaying the signal lattice number according to the RSSI value reported by the modem. The modem also reports asynchronous events such as signal strength change and the like in an AT command form, and the specific working principle and structure are as described above.
As shown in fig. 2, the method for reporting signal strength when the modem is used as a slave module according to the present invention includes the following steps:
201. an RSSI delta threshold is set. The value of the RSSI can be configured according to actual needs, and generally changes from 0 to the RSSI interval value of the adjacent signal lattice number; in particular, a value of 0 means that no filtration is performed; and the value is the RSSI maximum value which shows that the signal strength value of all the services is filtered and reported.
202. The modem measures the current RSSI value, if the RSSI value changes, a band elimination filter is used for filtering, and if the current RSSI value-the RSSI value recorded last time | >, a preset RSSI increment threshold value is adopted, the next step is executed; otherwise, no processing is performed.
203. The modem stores the current RSSI value as a record value for next comparison, reports the current RSSI value to the main control CPU, and simultaneously initiates an event of awakening the main control CPU if the current mobile terminal is in a standby state.
After the signal processing is used, when the signal lattice number is close to the threshold value of the signal lattice number change, the signal lattice number change is stable a lot, and the small signal jitter close to the threshold value of the signal lattice number is effectively eliminated. Because the user does not pay much attention to the specific signal lattice number during standby, the RSSI increment threshold value can be reset to be larger than or equal to the maximum RSSI value during standby, so that the main control CPU cannot be awakened even if the RSSI is changed, and the main control CPU is awakened to update the signal lattice number to be 0 only when the network service is judged to be lost, thereby further reducing the standby power consumption.
The above embodiments are merely to illustrate the technical solutions of the present invention and not to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made without departing from the spirit and scope of the present invention and it should be understood that the present invention is to be covered by the appended claims.
Claims (6)
1. A modem comprises an RSSI capturing unit and an RSSI reporting unit, and is characterized by further comprising a band elimination filter, wherein the band elimination filter is used for filtering the RSSI value captured by the RSSI capturing unit, and when the current RSSI value-the last recorded RSSI value | > (a preset RSSI increment threshold), the recorded RSSI value is updated and the current RSSI value is sent to the RSSI reporting unit and reported to a main control CPU; otherwise, the current RSSI value is not processed.
2. A mobile terminal comprises a main control CPU and a modem, wherein the modem comprises an RSSI capturing unit and an RSSI reporting unit,
the main control CPU is used for setting the RSSI increment threshold value and sending the RSSI increment threshold value to the modem; the RSSI reporting unit is also used for processing and displaying the signal lattice number according to the RSSI value reported by the RSSI reporting unit;
the modem also comprises a band elimination filter which is used for filtering the RSSI value captured by the RSSI capturing unit, and when the current RSSI value-the RSSI value recorded last time | > (RSSI increment threshold value), the recorded RSSI value is updated and sent to the RSSI reporting unit, and the current RSSI value is reported to the main control CPU; otherwise, the current RSSI value is not processed.
3. The mobile terminal according to claim 2, wherein the main control CPU sets the RSSI increment threshold value to a value between 0 and an RSSI interval value of an adjacent trellis when the mobile terminal is in an operating state; and when the mobile terminal is in a standby state, setting the RSSI increment threshold value to be the maximum RSSI value.
4. A method for reporting signal strength when a modem is used as a slave module is characterized by comprising the following steps:
presetting an RSSI increment threshold;
when the modem captures that the RSSI value changes: if the current RSSI value-the last recorded RSSI value | > -the RSSI increment threshold value, updating the recorded RSSI value, sending the current RSSI value to an RSSI reporting unit, and reporting the current RSSI value to a main control CPU; otherwise, the current RSSI value is not processed.
5. The method of claim 4, wherein the RSSI delta threshold is set to a value between 0 and the RSSI interval value of an adjacent cell number when the mobile terminal is in an active state.
6. The signal strength reporting method of claim 4 or 5, wherein the RSSI delta threshold value is set as the maximum RSSI value when the mobile terminal is in a standby state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910188429A CN101742534A (en) | 2009-11-23 | 2009-11-23 | Modem, mobile terminal and method for reporting signal strength |
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| CN200910188429A CN101742534A (en) | 2009-11-23 | 2009-11-23 | Modem, mobile terminal and method for reporting signal strength |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480735A (en) * | 2010-11-26 | 2012-05-30 | 中兴通讯股份有限公司 | Method and device for allocating frequency resources in fractional frequency reuse (FFR) system |
| CN103166719A (en) * | 2011-12-16 | 2013-06-19 | 希姆通信息技术（上海）有限公司 | Received signal strength reporting method and device |
| CN103391142A (en) * | 2013-07-24 | 2013-11-13 | 福建星网锐捷网络有限公司 | Method and device for determining RSSI value of channel, and access point equipment |
| CN104053180A (en) * | 2014-06-27 | 2014-09-17 | 青岛海信移动通信技术股份有限公司 | Signal strength display method and mobile terminal |
| CN106465266A (en) * | 2014-05-08 | 2017-02-22 | 索尼公司 | Communication apparatus, communication method and program |
| CN106793025A (en) * | 2016-11-29 | 2017-05-31 | 努比亚技术有限公司 | A kind of method and terminal for realizing reporting events treatment |
| CN106793026A (en) * | 2016-11-29 | 2017-05-31 | 努比亚技术有限公司 | A kind of method and terminal for realizing reporting events treatment |
| CN106792886A (en) * | 2016-11-29 | 2017-05-31 | 努比亚技术有限公司 | A kind of method and terminal for realizing reporting events treatment |
| CN107406049A (en) * | 2015-02-26 | 2017-11-28 | Lg 伊诺特有限公司 | The modem operation for vehicle is controlled to prevent the device of battery discharge and control method |
| WO2018194536A1 (en) * | 2017-04-17 | 2018-10-25 | Hewlett-Packard Development Company, L.P. | Channel polling for multi-frequency band antenna tuning |
| CN109150329A (en) * | 2018-08-16 | 2019-01-04 | 珠海格力电器股份有限公司 | Signal display method and device |
| CN109413630A (en) * | 2018-12-06 | 2019-03-01 | 深圳市觅拓物联信息技术有限公司 | A kind of RSSI value of bluetooth determines method and system |
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2009
- 2009-11-23 CN CN200910188429A patent/CN101742534A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480735A (en) * | 2010-11-26 | 2012-05-30 | 中兴通讯股份有限公司 | Method and device for allocating frequency resources in fractional frequency reuse (FFR) system |
| CN103166719A (en) * | 2011-12-16 | 2013-06-19 | 希姆通信息技术（上海）有限公司 | Received signal strength reporting method and device |
| CN103166719B (en) * | 2011-12-16 | 2016-05-11 | 希姆通信息技术（上海）有限公司 | Received signal strength report method and device |
| CN103391142A (en) * | 2013-07-24 | 2013-11-13 | 福建星网锐捷网络有限公司 | Method and device for determining RSSI value of channel, and access point equipment |
| CN106465266A (en) * | 2014-05-08 | 2017-02-22 | 索尼公司 | Communication apparatus, communication method and program |
| CN106465266B (en) * | 2014-05-08 | 2020-09-11 | 索尼公司 | Communication device, communication method, and program |
| CN104053180A (en) * | 2014-06-27 | 2014-09-17 | 青岛海信移动通信技术股份有限公司 | Signal strength display method and mobile terminal |
| CN107406049A (en) * | 2015-02-26 | 2017-11-28 | Lg 伊诺特有限公司 | The modem operation for vehicle is controlled to prevent the device of battery discharge and control method |
| CN106792886A (en) * | 2016-11-29 | 2017-05-31 | 努比亚技术有限公司 | A kind of method and terminal for realizing reporting events treatment |
| CN106793026A (en) * | 2016-11-29 | 2017-05-31 | 努比亚技术有限公司 | A kind of method and terminal for realizing reporting events treatment |
| CN106793025A (en) * | 2016-11-29 | 2017-05-31 | 努比亚技术有限公司 | A kind of method and terminal for realizing reporting events treatment |
| WO2018194536A1 (en) * | 2017-04-17 | 2018-10-25 | Hewlett-Packard Development Company, L.P. | Channel polling for multi-frequency band antenna tuning |
| CN110546898A (en) * | 2017-04-17 | 2019-12-06 | 惠普发展公司，有限责任合伙企业 | Channel polling for multi-band antenna tuning |
| US11310797B2 (en) | 2017-04-17 | 2022-04-19 | Hewlett-Packard Development Company L.P. | Channel polling for multi-frequency band antenna tuning |
| CN109150329A (en) * | 2018-08-16 | 2019-01-04 | 珠海格力电器股份有限公司 | Signal display method and device |
| CN109413630A (en) * | 2018-12-06 | 2019-03-01 | 深圳市觅拓物联信息技术有限公司 | A kind of RSSI value of bluetooth determines method and system |
| CN109413630B (en) * | 2018-12-06 | 2020-10-09 | 深圳市觅拓物联信息技术有限公司 | Bluetooth RSSI value determination method and system |
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Application publication date: 20100616 |