CN101350660B - Digital RF far-drawing system and method for controlling standby carrier channel thereof - Google Patents
Digital RF far-drawing system and method for controlling standby carrier channel thereof Download PDFInfo
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- CN101350660B CN101350660B CN200810029660A CN200810029660A CN101350660B CN 101350660 B CN101350660 B CN 101350660B CN 200810029660 A CN200810029660 A CN 200810029660A CN 200810029660 A CN200810029660 A CN 200810029660A CN 101350660 B CN101350660 B CN 101350660B
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Abstract
The present invention discloses a digital radio frequency remote system and a spare carrier channel control method. In the radio frequency remote unit, the spare carrier channel preset in the system is controlled to be started or closed in the real-time way; the monitoring mainframe module of the radio frequency remote unit adopts a first monitoring module to summarize the actual telephone traffic of the uplink of the radio frequency remote unit, and compares the actual telephone traffic and the preset threshold value which represents the number of carrier channels; when the actual traffic is more than the threshold value, the monitoring mainframe module adopts the second monitoring module to control the downlink, so as to reduce the attenuation of the spare carrier channels and to start the spare carrier channels; when the actual telephone traffic is less than the threshold value, the monitoring mainframe module adopts the second monitoring module to control the downlink, so as to improve the attenuation of the spare carrier channels and to close the spare carrier channels. The digital radio frequency remote system realizes the control over the spare carrier channel, so that the system has higher flexibility and portability, and higher intelligent degree. And the digital radio frequency remote system is in particular suitable for the occasions with larger changes of the telephone traffic.
Description
[technical field]
The present invention relates to the Mobile communication direct base station technology, be specifically related to a kind of digital RF far-drawing system and subsequent use carrier control method thereof.
[technical background]
In mobile communications network; The use of base station resource is ever-changing; Factors such as time period cause the stream of people to distribute mobile difference all can be to covering the carrier wave demand that requires proposition different, and promptly overlay device can often run into operator increases or reduce carrier resource in the scope of base station carrier source according to the requirement that covers problem.And existing digital RF far-drawing system is the mentality of designing of core with hardware based on the conventional wireless electricity; In reality, adopt special-purpose hardware chip to realize the carrier resource function; Different carrier wave demands adopt corresponding hardware, make system equipment hardware and function solidify.After the Demand Design of digital RF far-drawing system according to client's appointment, this equipment can only be applicable to the occasion of this particular demands, just can meet the demands and work as the fashionable its internal circuit of must changing in field that is used in all the other demands of different.Existing thus digital RF far-drawing system causes on the one hand owing to can not independently cover on-the-spot requirement according to reality and adjusts carrier resource owing to adopt traditional mentality of designing that does not have portability, is difficult to better satisfy requirement of client, and applicability is relatively poor; Because the curing of system hardware and function as far as production firm, need be purchased particular device and produce debugging according to client's demand arrangement, cause purchase cost and research and development on the other hand, production cost raises.
[summary of the invention]
For this reason, the object of the invention will overcome above-mentioned deficiency exactly, and a kind of method for controlling standby carrier channel of digital RF far-drawing system is provided.
In addition, another object of the present invention is to provide a kind of and last purpose method corresponding digital radio frequency stretch system.
For realizing this purpose, the present invention adopts following technical scheme:
The method for controlling standby carrier channel of digital RF far-drawing system of the present invention, the control of in Remote Radio Unit, in real time the standby carrier channel of systemic presupposition being launched or closing:
The monitoring host computer module of Remote Radio Unit through the up link of first monitoring module statistics Remote Radio Unit actual telephone traffic and with preset sign the threshold value of carrier channel number compare; When actual telephone traffic during greater than said threshold value, this monitoring host computer module reduces decay through second monitoring module control down link to standby carrier channel and it is launched realizing; When actual telephone traffic during less than said threshold value, this monitoring host computer module improves decay through second monitoring module control down link to standby carrier channel and it is closed realizing.
The attenuation process of the standby carrier channel of said second monitoring module control down link is carried out step by step, makes standby carrier channel be able to close or open through at least twice raising or the operation that reduces pad value.
The detailed process of the actual telephone traffic of said first monitoring module statistics up link is: the traffic data of obtaining the baseband processing module that is used for carrying out base band signal process in the up link earlier; By in this baseband processing module the effective traffic data being added up, then send accumulated result back to said first monitoring module as actual telephone traffic again.
The step that has differentiation in the up link for described traffic data; Be specially: in the said baseband processing module of up link; Earlier with the live traffice data with preset sign the threshold value of power limit of effective traffic signal and noise compare; If this traffic data is higher than this threshold value and then is regarded as the effective traffic signal and adds up, final accumulated result is sent to said first monitoring module as actual telephone traffic.
The said threshold value that has characterized the carrier channel number provides manual setting operation by the monitoring host computer module to the user with the threshold value that has characterized the power limit of effective traffic data and noise, and the monitoring host computer module was preset these two threshold values after the user was provided with and accomplishes through first monitoring module.
The concrete grammar of launching standby carrier channel is: the transmission of monitoring host computer module has characterized the instruction of launching standby carrier channel and has given second monitoring module; The preset sign in it of second monitoring module inquiry between the subsequent use carrier signal that need launch and its attenuation tables of data of corresponding relation to obtain corresponding attenuation; The baseband processing module of second monitoring module control down link reduces pad value according to said attenuation to the standby carrier channel classification; Make the gain of standby carrier channel be able to increase, standby carrier channel is opened thereupon.
The concrete grammar of closing standby carrier channel is: the transmission of monitoring host computer module has characterized the instruction of closing standby carrier channel and has given second monitoring module; The preset sign in it of second monitoring module inquiry between the subsequent use carrier signal that need close and its attenuation tables of data of corresponding relation to obtain corresponding attenuation; The baseband processing module of second monitoring module control down link improves pad value according to said attenuation to the standby carrier channel classification; The gain of standby carrier channel is minimized, and standby carrier channel is closed thereupon.
Said characterized the tables of data of corresponding relation between the subsequent use carrier signal that need launch and its attenuation and characterized the subsequent use carrier signal that need close and its attenuation between the tables of data of corresponding relation be same form.
Digital RF far-drawing system of the present invention; Comprise Base Band Unit and at least one Remote Radio Unit that electrically connects with it; Form up link and down link between Base Band Unit and the Remote Radio Unit; Have in the downlink/uplink of Remote Radio Unit and be used for baseband processing module that digital downstream signal/upward signal is handled in base band level, this Remote Radio Unit also comprises:
First monitoring module is connected with the baseband processing module of Remote Radio Unit up link, is used for making the judgement whether standby carrier channel was opened or closed to needs according to the actual telephone traffic of up link;
Second monitoring module is connected with the baseband processing module of Remote Radio Unit down link, is used to control this baseband processing module and adjusts the decay of standby carrier channel and open or close standby carrier channel;
The monitoring host computer module is connected with second monitoring module with said first monitoring module respectively, controls second monitoring module according to the court verdict of first monitoring module and accomplishes the operation of opening or closing standby carrier channel.
The baseband processing module of said Remote Radio Unit up link comprises:
Comparator module is preset with the threshold value of the power limit that has characterized effective traffic data and noise, with the traffic data of obtaining and this threshold value relatively, and the output comparative result;
Counter module is regarded as the effective traffic data with traffic data power in the comparator module greater than the upward signal of said threshold value and adds up and will export the result to be sent to said first monitoring module as actual telephone traffic.
Compared with prior art, the present invention possesses following advantage: at first, the present invention has realized the flexible of single sector intercarrier channel number, not only can but also can close in the off-peak hours section because of the need increase, helps the high efficiency utilization to carrier resource; Secondly, native system can adopt chips such as FPGA, DSP to realize software radio, thereby helps reducing operating cost of operator.
[description of drawings]
Fig. 1 is the theory diagram of digital RF far-drawing system of the present invention.
Fig. 2 is the theory diagram of the descending digital module of Base Band Unit that adopts of the present invention.
Fig. 3 is the theory diagram of the downstream signal processing module that adopts of the present invention.
Fig. 4 is the theory diagram of the descending digital module of Remote Radio Unit that adopts of the present invention.
Fig. 5 is the theory diagram of the downstream signal processing module that adopts of the present invention.
Fig. 6 is the theory diagram of the Remote Radio Unit upstream digital module that adopts of the present invention.
Fig. 7 is the theory diagram of the upward signal processing module that adopts of the present invention.
Fig. 8 is the theory diagram of the Base Band Unit upstream digital module that adopts of the present invention.
Fig. 9 is the theory diagram of the upward signal processing module that adopts of the present invention.
Figure 10 is the theory diagram of the uplink baseband processing module that adopts of the present invention.
[embodiment]
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail.
Fig. 1～Figure 10 shows concrete structure of the present invention.Visible by above-mentioned figure, the subsequent use digital RF far-drawing system of this sector-carrier is divided into Base Band Unit and Remote Radio Unit two parts, and Base Band Unit is connected with mobile communication base station 01 through coupler 02; Base Band Unit links to each other through optical fiber with Remote Radio Unit, is formed for the up link and the down link of signal transmission.
Consult Fig. 1, said Base Band Unit comprises duplexer 11, descending simulation frequency-variable module 12, descending digital module 13, up simulation frequency-variable module 14, upstream digital module 15, Base Band Unit monitoring host computer module 16.
In conjunction with Fig. 1 and Fig. 2, descending digital module 13 comprises that downstream signal processing module 139, light sends out submodule 134, descending monitoring module 135; In conjunction with Fig. 2 and Fig. 3, said downstream signal processing module 139 comprises modulus unscented transformation module 131, descending digital frequency conversion module 132, downgoing baseband processing module 133.
In conjunction with Fig. 1 and Fig. 8, said upstream digital module 15 comprises light receipts submodule 154, upward signal processing module 159, up monitoring module 155; In conjunction with Fig. 8 and Fig. 9, said upward signal processing module 159 comprises uplink baseband processing module 153, upstream digital frequency-variable module 152, digital-to-analogue unscented transformation module 151.
In conjunction with Fig. 1 to 3 and Fig. 8 to 9; Duplexer 11 in the said Base Band Unit is connected with up simulation frequency-variable module 14 with descending simulation frequency-variable module 12 simultaneously simultaneously; Descending simulation frequency-variable module 12 is connected with descending digital module 13, and said up simulation frequency-variable module 14 is connected 15 with the upstream digital module.
Consult Fig. 2, downstream signal processing module 139, light are sent out submodule 134 and are connected successively in the said descending digital module 13, and descending monitoring module 135 is sent out submodule 134 with downstream signal processing module 139, light respectively through data wire and is connected; Consult Fig. 3, modulus unscented transformation module 131, descending digital frequency conversion module 132, downgoing baseband processing module 133 connect successively in the said downstream signal processing module 139.
In conjunction with Fig. 1 and Fig. 8, light is received submodule 154 in the said upstream digital module 15, upward signal processing module 159 connects successively, and up monitoring module 155 is received submodule 154 through data wire with upward signal processing module 159, light and is connected; In conjunction with Fig. 8 and Fig. 9, said upward signal processing module 159 uplink baseband processing modules 153, upstream digital frequency-variable module 152, digital-to-analogue unscented transformation module 151 connect successively.
See also Fig. 1, said Base Band Unit monitoring host computer module 16 is connected through the descending monitoring module 135 in data wire and descending simulation frequency-variable module 12, up simulation frequency-variable module 14, the descending digital module 13, the up monitoring module 155 in the upstream digital module 15.
Among Fig. 1, said Remote Radio Unit comprises descending digital module 21, descending simulation frequency-variable module 22, power amplifier module 23, duplexer 27, low noise amplification module 26, up simulation frequency-variable module 25, upstream digital module 24, extension unit monitoring host computer module 28.
In conjunction with Fig. 1 and Fig. 4, said descending digital module 21 comprises light receipts submodule 214, downstream signal processing module 219, descending monitoring module 215; In conjunction with Fig. 4 and Fig. 5, said downstream signal processing module 219 comprises downgoing baseband processing module 213, descending digital frequency conversion module 212, digital-to-analogue unscented transformation module 211.
In conjunction with Fig. 1 and Fig. 6, said upstream digital module 24 comprises that upward signal processing module 249, light sends out submodule 244, up monitoring module 245; In conjunction with Fig. 6 and Fig. 7, said upward signal processing module 249 comprises modulus unscented transformation module 241, upstream digital frequency-variable module 242, uplink baseband processing module 243; In conjunction with Fig. 7 and Figure 10, said uplink baseband processing module 243 comprises comparator module 248 sum counter modules 247.
Consult Fig. 1; In the Remote Radio Unit; Said descending digital module 21 is connected with power amplifier module 23 through descending simulation frequency-variable module 22; Duplexer 27 is connected with low noise amplification module 26 with power amplifier module 23 simultaneously, and low noise amplification module 26 is connected with upstream digital module 24 through up simulation frequency-variable module 25.
Consult Fig. 4 and Fig. 5, light is received submodule 214 in the said descending digital module 21, downstream signal processing module 219 connects successively, and descending monitoring module 215 is received submodule 214 through data wire with downstream signal processing module 219, light respectively and is connected; Downgoing baseband processing module 213, descending digital frequency conversion module 212, digital-to-analogue unscented transformation module 211 connect successively in the said downstream signal processing module 219;
Consult Fig. 6 and Fig. 7, upward signal processing module 249, light are sent out submodule 244 and are connected successively in the said upstream digital module 24, and up monitoring module 245 is sent out submodule 244 through data wire and upward signal processing module 249, light and is connected; Modulus unscented transformation module 241, upstream digital frequency-variable module 242, uplink baseband processing module 243 connect successively in the said upward signal processing module 249.
Consult Fig. 1, said extension unit monitoring host computer module 28 is connected through the descending monitoring module 215 in data wire and descending simulation frequency-variable module 22, up simulation frequency-variable module 25, the descending digital module 21, the up monitoring module 245 in the upstream digital module 24; Said descending monitoring module 215 is connected with descending digital frequency conversion module 212 through data wire; Said up monitoring module 245 also is connected with comparator module 248 sum counter modules 247 respectively.
Please complex chart 1 to Figure 10, the principle when setting forth signal downlink earlier:
The signal that mobile communication base station 01 produces is sent to the duplexer 11 of Base Band Unit through coupler 02; Duplexer 11 is isolated downlink radio-frequency signal; Downlink radio-frequency signal becomes analog if signal through the mixing of descending simulation frequency-variable module 12, and this analog signal can be multi-carrier signal; Become digital medium-frequency signal after the modulus sampling of analog intermediate frequency multi-carrier signal through the modulus unscented transformation module 131 in the descending digital module 13; Descending digital frequency conversion module 132 downconverts to corresponding downstream digital baseband multi-carrier signal with digital medium-frequency signal; Be packaged into the transmission signals that is fit to standard interface protocol after the Data Format Transform of this digital baseband multi-carrier signal through downgoing baseband processing module 133, send out submodule 134 through light again and be modulated to light signal is sent to Remote Radio Unit through optical fiber descending digital module 21; The light of light signal in descending digital module 21 is received submodule 214 and is demodulated transmission signals, is reduced to corresponding digital baseband multi-carrier signal through downgoing baseband processing module 213; Descending digital frequency conversion module 212 with this digital baseband multi-carrier signal up-conversion to digital medium-frequency signal; Digital medium-frequency signal reverts to corresponding analog if signal through the digital-to-analogue conversion of digital-to-analogue unscented transformation module 211; Analog if signal through the mixing of descending simulation frequency-variable module 22 after reduction become downlink radio-frequency signal, downlink radio-frequency signal amplifies through power amplifier module 23 and outputs to cover antenna 03 with duplexer 27 and be transmitted into the interior travelling carriage (like mobile phone) of the area of coverage;
More than be that downstream signal covers principle, just opposite for its transfer process of upward signal.
The signal that travelling carriage (mobile phone) in the overlay area sends; Receive after duplexer 27 is isolated up radiofrequency signal through cover antenna 03; Radiofrequency signal becomes analog if signal through the amplification of low noise amplification module 26 and the mixing of up simulation frequency-variable module 25, and this analog signal can be multi-carrier signal; Become digital medium-frequency signal after the modulus sampling of analog if signal through the modulus unscented transformation module 241 in the far-end upstream digital module 24; Upstream digital frequency-variable module 242 in the Remote Radio Unit downconverts to upstream digital base band multi-carrier signal with digital medium-frequency signal; Be packaged into the transmission signals that is fit to standard interface protocol after the Data Format Transform of base band multi-carrier signal through uplink baseband processing module 243, send out submodule 244 through light again and be modulated to light signal is sent to Base Band Unit through optical fiber upstream digital module 15; The light of light signal in descending digital module 15 is received submodule 154 and is demodulated transmission signals, is reduced to corresponding digital baseband multi-carrier signal through upward signal processing module 159; Upstream digital frequency-variable module 152 with this digital baseband signal up-conversion to digital medium-frequency signal; Digital medium-frequency signal reverts to corresponding analog if signal through the digital-to-analogue conversion of digital-to-analogue unscented transformation module 151; Analog if signal through the mixing of up simulation frequency-variable module 14 after reduction become up radiofrequency signal, up radiofrequency signal transfers to mobile communication base station 01 through duplexer 11 with signal.
Digital RF far-drawing system of the present invention can be controlled its intrinsic standby carrier channel.Standby carrier channel is in closed condition when telephone traffic is not high, when telephone traffic reaches the certain predetermined threshold value, then can be launched automatically, makes the available carrier wave channel number of system be able to expand.Below set forth the method that this system regulates standby carrier channel:
Extension unit monitoring host computer module 28 numbers according to the uplink traffic amount of radio frequency stretch system judge whether the subsequent use carrier channel of needs open system; When up telephone traffic surpasses the unlatching threshold value that presets; The threshold value here is meant the concrete number of telephone traffic; It is busy to be regarded as telephone traffic above this threshold value; Be in idle condition otherwise be regarded as telephone traffic, extension unit monitoring host computer module 28 is opened subsequent use carrier channel through the descending monitoring module 215 control downgoing baseband processing modules 213 of descending digital module 21; When up telephone traffic be lower than setting close threshold value the time, the descending monitoring module 215 control downgoing baseband processing modules 213 of extension unit monitoring host computer module 28 through descending digital module 21 are closed subsequent use carrier channel.
Particularly, obtain the original traffic data at uplink baseband processing module 243 places, and according to preset special algorithm, and draw the telephone traffic of up link by extension unit monitoring host computer module 28 monitoring modules through upstream digital module 24.
Said preset special algorithm realizes through its comparator module 247 common cooperations of 248 sum counter modules in uplink baseband processing module 243: digital RF far-drawing system judges that the signal that up link receives is that the effective traffic data or the foundation of noise are that the uplink baseband processing module 243 of Remote Radio Unit comprises comparator module 248 sum counter modules 247; The comparison threshold value of comparator module 248 has characterized power limit between effective traffic data and the noise; Also be; When the power of signal is regarded as the effective traffic data during greater than the threshold value here, otherwise be regarded as noise.This threshold value offers comparator module 248 by the up monitoring module 245 of extension unit monitoring host computer module 28 through upstream digital module 24, can preset the monitoring host computer module by the user is manual.Comparator module 248 compared baseband signal according to this threshold value in when work, when baseband signal power magnitude during greater than the comparison threshold value, then was regarded as the effective traffic signal and was added up by counter module 247; This threshold value is relevant with the type and the operating position of digital RF far-drawing system, can be provided with through monitoring host computer module 28 by man-machine.
The concrete steps of opening or closing standby carrier channel are following: monitoring host computer module 28 is selected to export the instruction of opening or closing to descending monitoring module 215 according to the court verdict of 245 pairs of telephone traffics of up monitoring module; The descending monitoring module 215 of the descending digital module 21 of Remote Radio Unit is according to the open command of extension unit monitoring host computer module 28; The pad value that drives 213 pairs of standby carrier channels of downgoing baseband processing module reduces step by step; Make it just reach the purpose of unlatching standby carrier channel through twice decay at least; To avoid standby carrier channel opening at the beginning to the impact of electronic devices and components, thus, standby carrier channel is along with the raising of its gain is come into operation thereupon; Descending monitoring module 215 is according to the shutdown command of extension unit monitoring host computer module 28, and the pad value that drives 213 pairs of standby carrier channels of downgoing baseband processing module in like manner increases step by step, and thus, standby carrier channel is along with the reduction of its gain is closed thereupon.
System of the present invention needs according to use device class and situation two types of threshold values to be set by the client earlier; One type is to judge that uplink signal is the comparison threshold value of effective traffic data or noise, another kind of for being used to judge the telephone traffic threshold value that standby carrier channel is opened or closed.Above-mentioned two threshold values are can be by the client through interactive means input extension unit monitoring host computer module 28; Extension unit monitoring host computer module 28 is passed to the up monitoring module 245 of upstream digital module 24 with the comparison threshold value through data wire, and up monitoring module 245 is given the comparator module 248 in the uplink baseband processing module 243 with this transfer of data then; The digital baseband signal of up link and this comparison threshold value compare at comparator module 248 places; If then being regarded as normal user's telephone traffic signal greater than this value carries out counting statistics by counter module 247, the count value in a period of time is original traffic data.
More specifically, extension unit monitoring host computer module 28 obtains the original traffic data of uplink baseband processing module 243 at regular intervals through the up monitoring module 245 of upstream digital module 24; The telephone traffic of the up link between extension unit monitoring host computer module 28 calculates at this moment according to said preset special algorithm again; Extension unit monitoring host computer module 28 compares this telephone traffic numerical value and telephone traffic threshold value; If the telephone traffic numerical value that calculates is greater than preset telephone traffic threshold value; The traffic of then representing up link is busy; Need to open the standby carrier channel of digital RF far-drawing system and support, the descending monitoring module 215 of descending digital module 21 is passed in the instruction that extension unit monitoring host computer module 28 will be opened carrier channel through data wire; Descending monitoring module 215 drives the descending digital frequency conversion module 212 that baseband processing module 213 reduces the pad value of corresponding carrier channel and be transferred to through data wire timely the downstream signal processing module step by step according to instruction; Descending digital frequency conversion module 212 comes to increase step by step the gain of corresponding carrier channel according to this pad value that changes step by step, and is normal until this carrier channel gain, thereby opened subsequent use carrier channel;
If the telephone traffic numerical value that calculates is less than preset telephone traffic threshold value; The traffic of then representing up link is not in a hurry; Need close the standby carrier channel of having opened, the descending monitoring module 215 of descending digital module 21 is passed in the instruction that extension unit monitoring host computer module 28 is closed carrier channel through data wire with needs; Descending monitoring module 215 drives according to instruction that baseband processing module 213 increases the pad value of corresponding carrier channel step by step and instant passes through the descending digital frequency conversion module 212 that data wire is transferred to downstream signal processing module 219; Descending digital frequency conversion module 212 reduces step by step the gain of corresponding carrier channel according to this pad value that changes step by step, reduce to until this carrier channel gain minimum, thereby closed subsequent use carrier channel.
In the said descending monitoring module 215; Be preset with the tables of data that has characterized corresponding relation between the subsequent use carrier signal that need launch and its attenuation and characterized the subsequent use carrier signal that need close and its attenuation between the tables of data of corresponding relation; Two tables of data also can be merged into one; So that answer pad value when descending monitoring module 215 can obtain subsequent use carrier signal decayed according to the inquiry of this table, and this value is transferred to the operation that 213 pairs of subsequent use carrier signals of said downgoing baseband processing module change gain.
To sum up, digital RF far-drawing system of the present invention makes system have higher flexibility and portability owing to realized the control to standby carrier channel, and degree of intelligence is higher, is particularly useful for telephone traffic and changes occasion greatly.
The foregoing description is a preferred implementation of the present invention; But execution mode of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the method for controlling standby carrier channel of a digital RF far-drawing system is used for the control of in real time standby carrier channel of systemic presupposition being launched or closing at Remote Radio Unit, it is characterized in that:
The monitoring host computer module (28) of Remote Radio Unit through the up link of first monitoring module (245) statistics Remote Radio Unit actual telephone traffic and with preset sign the threshold value of carrier channel number compare; When actual telephone traffic during greater than said threshold value, this monitoring host computer module (28) reduces decay through second monitoring module (215) control down link to standby carrier channel and it is launched realizing; When actual telephone traffic during less than said threshold value, this monitoring host computer module improves decay through second monitoring module (215) control down link to standby carrier channel and it is closed realizing.
2. the method for controlling standby carrier channel of digital RF far-drawing system according to claim 1; It is characterized in that; The attenuation process of the standby carrier channel of said second monitoring module (215) control down link is carried out step by step, and the operation that decays through at least twice raising or reduction makes standby carrier channel be able to close or open.
3. the method for controlling standby carrier channel of digital RF far-drawing system according to claim 2; It is characterized in that; The detailed process of the actual telephone traffic of said first monitoring module (245) statistics up link is: the traffic data of obtaining the baseband processing module (243) that is used for carrying out base band signal process in the up link earlier; By this baseband processing module (243) the effective traffic data are added up again, then send accumulated result back to said first monitoring module (245) as actual telephone traffic.
4. the method for controlling standby carrier channel of digital RF far-drawing system according to claim 3; It is characterized in that; The step that has differentiation in the up link for described traffic data; Be specially: in the said baseband processing module (243) of up link; Earlier with the live traffice data with preset sign the threshold value of power limit of power and noise of effective traffic signal compare, be higher than this threshold value as if this traffic data and then be regarded as the effective traffic signal and add up, final accumulated result is sent to said first monitoring module (245) as actual telephone traffic.
5. the method for controlling standby carrier channel of digital RF far-drawing system according to claim 4; It is characterized in that; The said threshold value that has characterized the carrier channel number provides manual setting operation by monitoring host computer module (28) to the user with the threshold value that has characterized the power limit of effective traffic data and noise, and monitoring host computer module (28) was preset these two threshold values after the user was provided with and accomplishes through first monitoring module (245).
6. according to the method for controlling standby carrier channel of any described digital RF far-drawing system in the claim 1 to 5; It is characterized in that; The concrete grammar of launching standby carrier channel is: monitoring host computer module (28) transmission has characterized the instruction of launching standby carrier channel and has given second monitoring module (215); The preset sign in it of second monitoring module (215) inquiry between the subsequent use carrier signal that need launch and its attenuation tables of data of corresponding relation to obtain corresponding attenuation; The baseband processing module (213) of second monitoring module (215) control down link reduces pad value according to said attenuation to the standby carrier channel classification; Make the gain of standby carrier channel be able to increase, standby carrier channel is opened thereupon.
7. the method for controlling standby carrier channel of digital RF far-drawing system according to claim 6; It is characterized in that; The concrete grammar of closing standby carrier channel is: monitoring host computer module (28) transmission has characterized the instruction of closing standby carrier channel and has given second monitoring module (215); The preset sign in it of second monitoring module (215) inquiry between the subsequent use carrier signal that need close and its attenuation tables of data of corresponding relation to obtain corresponding attenuation; The baseband processing module (213) of second monitoring module (215) control down link improves pad value according to said attenuation to the standby carrier channel classification; The gain of standby carrier channel is minimized, and standby carrier channel is closed thereupon.
8. the method for controlling standby carrier channel of digital RF far-drawing system according to claim 7 is characterized in that: said characterized the tables of data of corresponding relation between the subsequent use carrier signal that need launch and its attenuation and characterized the subsequent use carrier signal that need close and its attenuation between the tables of data of corresponding relation be same form.
9. digital RF far-drawing system; Comprise Base Band Unit and at least one Remote Radio Unit that electrically connects with it; Form up link and down link between Base Band Unit and the Remote Radio Unit, have in the downlink/uplink of Remote Radio Unit and be used for baseband processing module (213,243) that digital downstream signal/upward signal is handled in base band level; It is characterized in that this Remote Radio Unit also comprises:
First monitoring module (245) is connected with the baseband processing module (243) of Remote Radio Unit up link, is used for making the judgement whether standby carrier channel was opened or closed to needs according to the actual telephone traffic of up link;
Second monitoring module (215) is connected with the baseband processing module (213) of Remote Radio Unit down link, is used to control this baseband processing module (213) and adjusts the decay of standby carrier channel and open or close standby carrier channel;
Monitoring host computer module (28) is connected with second monitoring module (215) with said first monitoring module (245) respectively, controls second monitoring module (215) according to the court verdict of first monitoring module (245) and accomplishes the operation of opening or closing standby carrier channel.
10. digital RF far-drawing system according to claim 9 is characterized in that, the baseband processing module of said Remote Radio Unit up link (243) comprising:
Comparator module (248) is preset with the threshold value of the power limit that has characterized effective traffic data and noise, with the traffic data of obtaining and this threshold value relatively, and the output comparative result;
Counter module (247) is regarded as the effective traffic data with traffic data power in the comparator module (248) greater than the upward signal of said threshold value and adds up and will export the result to be sent to said first monitoring module (245) as actual telephone traffic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810029660A CN101350660B (en) | 2008-07-22 | 2008-07-22 | Digital RF far-drawing system and method for controlling standby carrier channel thereof |
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| CN200810029660A CN101350660B (en) | 2008-07-22 | 2008-07-22 | Digital RF far-drawing system and method for controlling standby carrier channel thereof |
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| CN101621822B (en) * | 2009-07-30 | 2012-04-04 | 华为技术有限公司 | Method and device for checking standby carrier frequencies |
| CN103379644B (en) * | 2012-04-13 | 2017-03-22 | 中国移动通信集团公司 | Carrier wave scheduling method and system |
| CN103713582B (en) * | 2012-09-29 | 2016-08-10 | 京信通信系统（中国）有限公司 | A kind of method and apparatus of long-range monitoring |
| CN113872629B (en) * | 2020-06-12 | 2023-04-18 | 华为技术有限公司 | Information transmission method, device and storage medium |
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| WO2003071824A1 (en) * | 2002-02-21 | 2003-08-28 | Motorola Inc. | A method and apparatus for selecting carriers |
| CN1585517A (en) * | 2004-05-25 | 2005-02-23 | 中兴通讯股份有限公司 | Short-message central multi-mode data dispatch processing method |
| CN101047429A (en) * | 2006-05-10 | 2007-10-03 | 华为技术有限公司 | Method of resource distribution |
| CN101080047A (en) * | 2007-06-22 | 2007-11-28 | 清华大学 | An energy-saving method applied in GSM base station |
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| WO2003071824A1 (en) * | 2002-02-21 | 2003-08-28 | Motorola Inc. | A method and apparatus for selecting carriers |
| CN1585517A (en) * | 2004-05-25 | 2005-02-23 | 中兴通讯股份有限公司 | Short-message central multi-mode data dispatch processing method |
| CN101047429A (en) * | 2006-05-10 | 2007-10-03 | 华为技术有限公司 | Method of resource distribution |
| CN101080047A (en) * | 2007-06-22 | 2007-11-28 | 清华大学 | An energy-saving method applied in GSM base station |
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