CN103874182A - Noise floor suppression method and device for remote coverage system - Google Patents
Noise floor suppression method and device for remote coverage system Download PDFInfo
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- CN103874182A CN103874182A CN201210545409.2A CN201210545409A CN103874182A CN 103874182 A CN103874182 A CN 103874182A CN 201210545409 A CN201210545409 A CN 201210545409A CN 103874182 A CN103874182 A CN 103874182A
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Abstract
The invention discloses a noise floor suppression method for a remote coverage system. The noise floor suppression method comprises the following steps of detecting the output power of an active remote unit in the remote coverage system; according to a detection result, adjusting the output power of the active remote unit within a preset range. The invention also discloses a noise floor suppression device for the remote coverage system. The noise floor suppression device comprises an output power detection module and an output power adjustment module. The noise floor suppression method and the noise floor suppression device for the remote coverage system can be used for automatically suppressing noise floor of the remote coverage system. By presetting a control range for the output power of the active remote unit, the output power of the active remote unit is adjusted in real time; therefore the output noise floor of the remote coverage system is controlled in a reasonable range, and the influence on the receiving sensitivity of a base station and a mobile terminal is reduced. The noise floor suppression method and the noise floor suppression device for the remote coverage system are easy to implement, convenient to use, low in cost and convenient to promote and apply.
Description
Technical field
The present invention relates to the end inhibition technical field of making an uproar, the end that the relates in particular to a kind of remote covering system end of inhibition method and a kind of remote covering system restraining device of making an uproar of making an uproar.
Background technology
Wireless coverage connecting system is introduced after remote covering system, the impact that the input noise of base station can be subject to making an uproar at the bottom of line output on remote covering system.While raising when making an uproar at the bottom of the upper line output of remote covering system, the input noise of base station can improve thereupon, thereby reduces the receiving sensitivity of base station.The noise that the up input of remote covering system is introduced, after remote covering system amplifies, is delivered to the up output of remote covering system, makes to make an uproar change greatly at the bottom of line output.The up gain of remote covering system is larger, and the impact that is subject to of making an uproar at the bottom of upper line output is just larger.Equally, the impact that the input noise of mobile terminal also can be subject to making an uproar at the bottom of line output under remote covering system, while raising when making an uproar at the bottom of the lower line output of remote covering system, the input noise of mobile terminal also can improve, thereby reduces the receiving sensitivity of mobile terminal.The noise that the descending input of remote covering system is introduced, after remote covering system amplifies, is delivered to the descending output of remote covering system, makes to make an uproar change greatly at the bottom of lower line output.And the descending gain of remote covering system is larger, the impact that is subject to of making an uproar at the bottom of lower line output is just larger.The lifting effects base station of making an uproar in this end and the situation of mobile terminal reception occur than being easier in remote covering system.Because in remote covering system, zoom out and between relay and remote radio unit, have active extension unit, active extension unit is easy to introduce noise, thus increase make an uproar at the bottom of the upper line output that zooms out relay in remote covering system and the lower line output of remote radio unit at the bottom of make an uproar.
Summary of the invention
For solving the problem of above-mentioned existence, the end that the invention provides a kind of remote covering system end of inhibition method and a kind of remote covering system restraining device of making an uproar of making an uproar.
The end of the remote covering system inhibition method of making an uproar, comprises the following steps:
Detect the power output of active extension unit in remote covering system;
According to testing result, the power output of active extension unit is adjusted in preset range; Wherein, when described preset range refers to that power output when active extension unit is within the scope of this, make an uproar and be less than or equal to the first predetermined threshold value in the end of remote covering system.
Compared with general technology, the end that the invention provides a kind of remote covering system inhibition method of making an uproar, can be used for the automatic inhibition of making an uproar at the bottom of remote covering system.By the control range of default active extension unit power output, the watt level of active extension unit is adjusted in real time.Thereby make to make an uproar and be controlled in a rational scope at the bottom of the output of remote covering system, reduce the impact of the receiving sensitivity on base station and mobile terminal.The present invention not only realizes simply, easy to use, and with low cost, easy to utilize.
The end of the remote covering system restraining device of making an uproar, comprises power output detection module and power output adjusting module;
Described power output detection module is for detection of the power output of active extension unit in remote covering system;
Described power output adjusting module, for according to the testing result of described power output detection module, is adjusted to the power output of active extension unit in preset range; Wherein, when described preset range refers to that power output when active extension unit is within the scope of this, make an uproar and be less than or equal to the first predetermined threshold value in the end of remote covering system.
Compared with general technology, the end that the invention provides a kind of remote covering system restraining device of making an uproar, can be used for the automatic inhibition of making an uproar at the bottom of remote covering system.By the control range of default active extension unit power output, the watt level of active extension unit is adjusted in real time.Thereby make to make an uproar and be controlled in a rational scope at the bottom of the output of remote covering system, reduce the impact of the receiving sensitivity on base station and mobile terminal.The present invention not only realizes simply, easy to use, and with low cost, easy to utilize.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of inhibition method of making an uproar at the end of remote covering system of the present invention;
Fig. 2 is the structural representation of restraining device of making an uproar at the end of remote covering system of the present invention.
Embodiment
For further setting forth the technological means that the present invention takes and the effect obtaining, below in conjunction with accompanying drawing and preferred embodiment, to technical scheme of the present invention, know and complete description.
Referring to Fig. 1, is the make an uproar schematic flow sheet of inhibition method of the end of remote covering system of the present invention.The end of the remote covering system of the present invention inhibition method of making an uproar comprises the following steps:
S101 detects the power output of active extension unit in remote covering system;
The power output of described active extension unit can comprise up power output and/or down output power.
Preferably, when remote covering system work, can, by the up output power value that zooms out the active extension unit of the real-time detection in relay in remote covering system, detect in real time the down output power value of active extension unit by the remote radio unit in remote covering system.
S102, according to testing result, is adjusted to the power output of active extension unit in preset range; Wherein, when described preset range refers to that power output when active extension unit is within the scope of this, make an uproar and be less than or equal to the first predetermined threshold value in the end of remote covering system.
Described the first predetermined threshold value can be to expect the make an uproar maximum of the optimized scope that can reach of the end of remote covering system.
The power output of described active extension unit can comprise up power output and/or down output power.
As one of them embodiment, can, by increasing or reduce the transmitting power of active extension unit transmitting terminal in remote covering system, the power output of active extension unit be adjusted in preset range.
As one of them embodiment, if when the up power output of the active extension unit detecting is greater than the Upper threshold of preset range corresponding to described up power output, also be that up power output is while being greater than the Upper threshold of making an uproar at the bottom of the upper line output that makes to zoom out relay in optimized scope, the relay of zooming out in remote covering system notifies remote radio unit one side to reduce the uplink transmission power of active extension unit, for example take 1dBm as stepping, uplink transmission power is lowered, until the up power output of active extension unit is made an uproar in optimized scope at the bottom of can reaching the upper line output that makes to zoom out relay.
If when the up power output of the active extension unit detecting is less than the Lower Threshold of preset range corresponding to described up power output, also be that up power output is while being less than the Lower Threshold of making an uproar at the bottom of the upper line output that makes to zoom out relay in optimized scope, the relay of zooming out in remote covering system notifies remote radio unit one side to increase the uplink transmission power of active extension unit, for example take 1dBm as stepping, uplink transmission power is increased, until the up power output of active extension unit is made an uproar in optimized scope at the bottom of can reaching the upper line output that makes to zoom out relay.
As one of them embodiment, if when the down output power of the active extension unit detecting is greater than the Upper threshold of the preset range that described down output power is corresponding, also be that down output power is while being greater than the Upper threshold of making an uproar at the bottom of the lower line output that makes remote radio unit in optimized scope, remote radio unit in remote covering system notice zooms out relay one side and reduces the down transmitting power of active extension unit, for example take 1dBm as stepping, down transmitting power is lowered, until the down output power of active extension unit is made an uproar in optimized scope at the bottom of can reaching the lower line output that makes remote radio unit.
If when the down output power of the active extension unit detecting is less than the Lower Threshold of the preset range that described down output power is corresponding, also be that down output power is while being less than the Lower Threshold of making an uproar at the bottom of the lower line output that makes remote radio unit in optimized scope, remote radio unit notice in remote covering system zooms out relay one side increases the down transmitting power of active extension unit, for example take 1dBm as stepping, down transmitting power is increased, until the down output power of active extension unit is made an uproar in optimized scope at the bottom of can reaching the lower line output that makes remote radio unit.
Compared with general technology, the end that the invention provides a kind of remote covering system inhibition method of making an uproar, can be used for the automatic inhibition of making an uproar at the bottom of remote covering system.By the control range of default active extension unit power output, the power output size of active extension unit is adjusted in real time.Thereby make to make an uproar and be controlled in a rational scope at the bottom of the output of remote covering system, reduce the impact of the receiving sensitivity on base station and mobile terminal.The present invention not only realizes simply, easy to use, and with low cost, easy to utilize.
As one of them embodiment, if the power output of active extension unit cannot be adjusted in described preset range, power output and second predetermined threshold value of the active extension unit after adjusting are compared; Wherein, described the second predetermined threshold value is less than the lower limit of described preset range;
If the power output of the active extension unit after adjusting is less than or equal to described the second predetermined threshold value, close the radio-frequency (RF) switch in remote covering system.
Also be that described the second predetermined threshold value refers to the corresponding threshold value of the radio-frequency (RF) switch of closing in remote covering system.
Preferably, can test remote covering system, determine when remote covering system and export the end corresponding output power value while reaching the poorest scope of making an uproar, this is defined as to the second predetermined threshold value.
If the up power output of active extension unit is less than or equal to the second predetermined threshold value corresponding to up power output, close the up radio-frequency (RF) switch that zooms out relay in remote covering system.In the time detecting that the up power output of active extension unit reaches the corresponding threshold value of radio-frequency (RF) switch of closing in remote covering system, zoom out relay and close up radio-frequency (RF) switch, control and zoom out the optimum of making an uproar at the bottom of the up output in relay.
If the down output power of active extension unit is less than or equal to the second predetermined threshold value that down output power is corresponding, close the downlink radio frequency switch of remote radio unit in remote covering system.In the time detecting that active extension unit down output power reaches the corresponding threshold value of radio-frequency (RF) switch of closing in remote covering system, remote radio unit is closed downlink radio frequency switch, the optimum of making an uproar at the bottom of the descending output of control remote radio unit.
As one of them embodiment, if the power output of active extension unit cannot be adjusted in described preset range, power output and second predetermined threshold value of the active extension unit after adjusting are compared; Wherein, described the second predetermined threshold value is less than the lower limit of described preset range;
If the power output of active extension unit after adjusting is greater than described the second predetermined threshold value, in preset data table, search with adjust after the corresponding system gain value of the power output of active extension unit; Wherein, in described preset data table, comprise in the time that the power output of active extension unit is respectively each numerical value the corresponding hour corresponding system gain value of making an uproar at the bottom of the output of remote covering system;
Adjust the system gain of remote covering system according to the system gain value finding.
Preferably, can determine when the up power output of active extension unit is during for each numerical value, zoom out the corresponding relay yield value that zooms out of corresponding minimum of making an uproar at the bottom of the upper line output of relay, and set up the first tables of data according to above-mentioned corresponding relation;
Search the corresponding relay yield value that zooms out in described the first tables of data according to the up power output of active extension unit after adjusting, and the gain of zooming out relay is adjusted into identical with the corresponding relay yield value that zooms out in described the first tables of data;
In the time that the up power output of active extension unit is not in optimized scope, regulate the gain of zooming out relay by searching the first tables of data, reach to zoom out on relay and at the bottom of line output, make an uproar and meet optimal value.
Preferably, can determine in the time that the down output power of active extension unit is each numerical value, the corresponding remote radio unit yield value of the corresponding minimum of making an uproar at the bottom of the lower line output of remote radio unit, and set up the second tables of data according to above-mentioned corresponding relation;
Search remote radio unit yield value corresponding in described the second tables of data according to the down output power of the active extension unit after adjusting, and the gain of remote radio unit is adjusted into identical with remote radio unit yield value corresponding in described the second tables of data.
In the time that active extension unit down output power is not in optimized scope, regulate the gain of remote radio unit by searching the second tables of data, reach under remote radio unit and at the bottom of line output, make an uproar and meet optimal value.
The end of in addition, also the having announced a kind of remote covering system restraining device of making an uproar.
Referring to Fig. 2, is the make an uproar structural representation of restraining device of the end of remote covering system of the present invention.The end of the remote covering system of the present invention restraining device of making an uproar comprises power output detection module 201 and power output adjusting module 202;
Described power output detection module 201 is for detection of the power output of active extension unit in remote covering system;
The power output of described active extension unit can comprise up power output and/or down output power.
Preferably, when remote covering system work, can, by the up output power value that zooms out the active extension unit of the real-time detection in relay in remote covering system, detect in real time the down output power value of active extension unit by the remote radio unit in remote covering system.
Described power output adjusting module 202, for according to the testing result of power output detection module 201, is adjusted to the power output of active extension unit in preset range.Wherein, when described preset range refers to that power output when active extension unit is within the scope of this, make an uproar and be less than or equal to the first predetermined threshold value in the end of remote covering system.
Described power output adjusting module 202, by increasing or reduce the transmitting power of active extension unit transmitting terminal in remote covering system, is adjusted to the power output of active extension unit in described preset range.
The power output of described active extension unit can comprise up power output and/or down output power.
As one of them embodiment, can, by increasing or reduce the transmitting power of active extension unit transmitting terminal in remote covering system, the power output of active extension unit be adjusted in preset range.
As one of them embodiment, the end of the remote covering system of the present invention restraining device of making an uproar also comprises radio-frequency (RF) switch closing module;
If described power output adjusting module cannot be adjusted to the power output of active extension unit in described preset range, power output and second predetermined threshold value of the active extension unit after adjusting are compared; Wherein, described the second predetermined threshold value is less than the lower limit of described preset range;
If the power output of the active extension unit after adjusting is less than or equal to described the second predetermined threshold value, described radio-frequency (RF) switch closing module is closed the radio-frequency (RF) switch in remote covering system.
Compared with general technology, the end that the invention provides a kind of remote covering system restraining device of making an uproar, can be used for the automatic inhibition of making an uproar at the bottom of remote covering system.By the control range of default active extension unit power output, the watt level of active extension unit is adjusted in real time.Thereby make to make an uproar and be controlled in a rational scope at the bottom of the output of remote covering system, reduce the impact of the receiving sensitivity on base station and mobile terminal.The present invention not only realizes simply, easy to use, and with low cost, easy to utilize.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the end of the remote covering system inhibition method of making an uproar, is characterized in that, comprises the following steps:
Detect the power output of active extension unit in remote covering system;
According to testing result, the power output of active extension unit is adjusted in preset range; Wherein, when described preset range refers to that power output when active extension unit is within the scope of this, make an uproar and be less than or equal to the first predetermined threshold value in the end of remote covering system.
2. the end of the remote covering system according to claim 1 inhibition method of making an uproar, it is characterized in that, if the power output of active extension unit cannot be adjusted in described preset range, power output and second predetermined threshold value of the active extension unit after adjusting are compared; Wherein, described the second predetermined threshold value is less than the lower limit of described preset range;
If the power output of the active extension unit after adjusting is less than or equal to described the second predetermined threshold value, close the radio-frequency (RF) switch in remote covering system.
3. the end of the remote covering system according to claim 1 inhibition method of making an uproar, it is characterized in that, if the power output of active extension unit cannot be adjusted in described preset range, power output and second predetermined threshold value of the active extension unit after adjusting are compared; Wherein, described the second predetermined threshold value is less than the lower limit of described preset range;
If the power output of active extension unit after adjusting is greater than described the second predetermined threshold value, in preset data table, search with adjust after the corresponding system gain value of the power output of active extension unit; Wherein, in described preset data table, comprise in the time that the power output of active extension unit is respectively each numerical value the corresponding system gain value of the corresponding minimum of making an uproar at the bottom of the output of remote covering system;
Adjust the system gain of remote covering system according to the system gain value finding.
4. the end of the remote covering system according to claim 3 inhibition method of making an uproar, is characterized in that, described in preset data table, search with adjust after the step of the corresponding system gain value of the power output of active extension unit, comprise the following steps:
Determine in the time that the up power output of active extension unit is each numerical value, zoom out the corresponding relay yield value that zooms out of corresponding minimum of making an uproar at the bottom of the upper line output of relay, and set up the first tables of data according to above-mentioned corresponding relation;
Search the corresponding relay yield value that zooms out in described the first tables of data according to the up power output of active extension unit after adjusting.
5. the end of the remote covering system according to claim 3 inhibition method of making an uproar, is characterized in that, described in preset data table, search with adjust after the step of the corresponding system gain value of the power output of active extension unit, comprise the following steps:
Determine in the time that the down output power of active extension unit is each numerical value, the corresponding remote radio unit yield value of the corresponding minimum of making an uproar at the bottom of the lower line output of remote radio unit, and set up the second tables of data according to above-mentioned corresponding relation;
Search remote radio unit yield value corresponding in described the second tables of data according to the down output power of the active extension unit after adjusting.
6. the end of the remote covering system according to claim 1 inhibition method of making an uproar, is characterized in that, the described power output by active extension unit is adjusted to the step in preset range, comprises the following steps:
By increasing or reduce the transmitting power of active extension unit transmitting terminal in remote covering system, the power output of active extension unit is adjusted in described preset range.
7. according to the end of the remote covering system described in any one in claim 1 to the 6 inhibition method of making an uproar, it is characterized in that, the power output of described active extension unit comprises up power output and/or down output power.
8. the end of the remote covering system restraining device of making an uproar, is characterized in that, comprises power output detection module and power output adjusting module;
Described power output detection module is for detection of the power output of active extension unit in remote covering system;
Described power output adjusting module, for according to the testing result of described power output detection module, is adjusted to the power output of active extension unit in preset range; Wherein, when described preset range refers to that power output when active extension unit is within the scope of this, make an uproar and be less than or equal to the first predetermined threshold value in the end of remote covering system.
9. the end of the remote covering system according to claim 8 restraining device of making an uproar, is characterized in that, also comprises radio-frequency (RF) switch closing module;
If described power output adjusting module cannot be adjusted to the power output of active extension unit in described preset range, power output and second predetermined threshold value of the active extension unit after adjusting are compared; Wherein, described the second predetermined threshold value is less than the lower limit of described preset range;
If the power output of the active extension unit after adjusting is less than or equal to described the second predetermined threshold value, described radio-frequency (RF) switch closing module is closed the radio-frequency (RF) switch in remote covering system.
10. the end of the remote covering system according to claim 8 or claim 9 restraining device of making an uproar, it is characterized in that, described power output adjusting module, by increasing or reduce the transmitting power of active extension unit transmitting terminal in remote covering system, is adjusted to the power output of active extension unit in described preset range.
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| CN201210545409.2A CN103874182B (en) | 2012-12-14 | 2012-12-14 | Noise floor suppression method and device for remote coverage system |
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| CN201210545409.2A CN103874182B (en) | 2012-12-14 | 2012-12-14 | Noise floor suppression method and device for remote coverage system |
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| CN103874182A true CN103874182A (en) | 2014-06-18 |
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| CN103874182B (en) | 2017-05-10 |
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