CN201174765Y - Self-adapting base station pulling far apparatus - Google Patents
Self-adapting base station pulling far apparatus Download PDFInfo
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- CN201174765Y CN201174765Y CNU2008201019202U CN200820101920U CN201174765Y CN 201174765 Y CN201174765 Y CN 201174765Y CN U2008201019202 U CNU2008201019202 U CN U2008201019202U CN 200820101920 U CN200820101920 U CN 200820101920U CN 201174765 Y CN201174765 Y CN 201174765Y
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- base station
- module
- information
- monitoring unit
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model discloses a self-adapting base station remote device capable of realizing control of the output power of the device. The device judges according to telephone traffic information of a base station, adjusts parameters of related modules, and achieves the aim of adjusting the power. Therefore, under the condition of jamming of the base station, the device automatically reduces the output power, reduces the coverage area, reduces the telephone traffic of the base station, avoids long-term jamming of the base station, and then improves the network quality. Besides, the self-adapting base station remote device also can realize automatic adjustment of the operating frequency of the device and make parameters of a frequency selector consistent with the frequency of the base station; and the device judges frequency information of the base station, adjusts the parameters of the related modules, and achieves the aim of frequency adjustment. Therefore, the carrier frequency of the device is automatically adjusted through acquisition of the information of the base station and automatic tracking of the frequency of the base station, thereby the incapability of being normally operated for a long time or mass drop call of the device is avoided, and consequently the network quality is improved. The self-adapting base station remote device has strong practicality.
Description
Technical field
The utility model relates to a kind of mobile communication network device, specially refers to a kind ofly can adjust parameter automatically according to environmental condition and make it the adaptive base station extension apparatus that adapts with the base station.
Background technology
Along with mobile communications network and professional development thereof, the maintaining sustained and rapid growth of telephone traffic requires more and morely to the traffic capacity of wireless network, and the effective means that solves traffic capacity is to increase the base station.Because the mounting condition of base station is had relatively high expectations, and public's existence has caused the reconnaissance difficulty of subregion, problems such as constructional difficulties to the general doubt of mobile communication base station radiation to the health influence.Along with the quantity of base station is more and more, a large amount of base station reconnaissances is more and more difficult, and the problem of installation site, base station becomes one of matter of utmost importance of base station construction; At present base station signal zooms out common employing optical fiber repeater, its with BS (or MS) signal received after processing and amplifying, again with frequently being transmitted to MS (or BS), it is a kind of foolproof absorption traffic, cause congestion phenomenon if occur a large amount of traffics in the optical fiber repeater area of coverage, optical fiber repeater keeps same parameter that signal is amplified forwarding, so its congestion phenomenon will continue to exist.On the other hand, because the network optimization causes base station frequency to change, and optical fiber repeater can't be made corresponding adjustment and the base station adapts, cause occurring communication blind district or call drop in a large number when base station that optical fiber repeater utilized.
Therefore, need a kind of new base station signal extension apparatus to solve the problems referred to above and defective.
The utility model content
For the congestion of traffic that overcomes existing optical fiber repeater is stopped up easily, and the shortcoming and defect that can not make the frequency adjustment that adapts along with the base station frequency variation, the utility model provides a kind of adaptive base station extension apparatus, not only can realize the device power output is controlled automatically, prevent that long-term the obstruction from appearring in the base station, also can realize frequency from motion tracking, prevent to occur after the base station from changing frequently blind area or a large amount of call drop.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of adaptive base station extension apparatus is characterized in that, comprising:
One comprises the near-end machine of base station information analytic unit, donor antenna mouth, coupler, duplexer, communication module, up attenuator, downstream attenuation device, optical module and monitoring unit;
One comprises the remote termination of optical module, frequency-selector, low noise amplifier, power amplifier, filter, duplexer, monitor, monitoring unit and retransmitting antenna mouth;
Described base station information analytic unit is one to be used for collecting LAC (area code) information, CID (base station numbering) information, CH (frequency numbering) information that comes from the base station, and above-mentioned information analyzed and calculate, and send to the device of near-end machine monitoring unit according to result of calculation;
The coupler input port of described near-end machine is connected with the donor antenna mouth, the optical interface of optical module is connected with optical fiber, by the donor antenna mouth to the input port of coupler, input port to the descending delivery outlet of the antenna opening of duplexer, duplexer to the downstream attenuation device of the delivery outlet of coupler, downstream attenuation device delivery outlet be to the optical module rf input port, the optical module rf input port is formed down link between the optical module optical interface; By the optical interface of optical module to optical module radio frequency delivery outlet, optical module radio frequency delivery outlet to up attenuator input port, the delivery outlet of up attenuator forms up link to coupler delivery outlet, coupler input port to the up input port of duplexer, the antenna opening of duplexer to the donor antenna mouth; The coupling aperture of coupler is connected with the base station information analytic unit, and base station information analytic unit data port is connected with monitoring unit;
The duplexer antenna opening of described remote termination is connected with the retransmitting antenna mouth, the optical interface of optical module is connected with optical fiber, by the retransmitting antenna mouth to the up delivery outlet of the antenna opening of duplexer, duplexer to the low noise amplifier input port, the low noise amplifier delivery outlet to the filter input port, filter delivery outlet to optical module rf input port, optical module rf input port form up link to the optical module optical interface; By the optical interface of optical module to the radio frequency delivery outlet of the radio frequency delivery outlet of optical module, optical module to the frequency-selector input port, the frequency-selector delivery outlet to the power amplifier input port, power amplifier delivery outlet to the input port of monitor, delivery outlet to the descending input port of duplexer, the antenna opening of duplexer of monitor form down link to the retransmitting antenna mouth.
The monitoring unit of near-end machine described in the utility model is one to be used for receiving the information that comes from confidence analysis unit, base station, and formation is analyzed, calculates, handled to information instruct, each module output in the monitoring unit of remote termination or near-end machine, the operating frequency of adjusting device makes it and the corresponding to device in base station.
The monitoring unit of remote termination described in the utility model is that a near-end machine monitoring unit that is used for receiving free optical module to transmit instructs, and the formation instruction is analyzed, calculates, handled in instruction, each module output in remote termination; Also receive simultaneously information, and the device that the formation data message is issued near-end machine monitoring unit is handled, analyzed to information from each module in the remote termination.
The monitor of remote termination described in the utility model is a telephone traffic information that is used for each carrier wave in the monitoring device, and data are issued the monitoring unit of remote termination, monitoring unit by remote termination is analyzed, is handled it, form instruction, the power output of adjusting device prevents that long-term congested device from appearring in the base station.
The monitoring unit of near-end machine described in the utility model comprises that one is connected with the base station information analytic unit, gathers the frequency information of base station, and exports to the data acquisition module of data analysis module; One input is connected with data acquisition module, accepts the data message that data acquisition module is defeated by, and the information of receiving is carried out analytical calculation, obtains a result, and exports the data analysis module of processing signals to the control Executive Module; One input is connected with data analysis module, accepts the processing signals that data analysis module is defeated by, and output is connected with each module in the near-end machine respectively, exports the control Executive Module of control signal to the module of correspondence and remote termination monitoring unit.
The monitoring unit of remote termination described in the utility model comprises that an input is connected with optical module, accept by the optical module forwarding from the information of near-end machine monitoring unit and the module information in the remote equipment, and export to the data acquisition module of data analysis module; One input is connected with data acquisition module, accepts the data message that data acquisition module is defeated by, and the information of receiving is carried out analytical calculation, obtains a result and exports the data analysis module of processing signals to the control Executive Module; One input is connected with data analysis module, accepts the processing signals that data analysis module is defeated by, and output is connected with remote end module respectively, exports the control Executive Module of control signal to the monitoring unit of the module of correspondence and remote termination.
The beneficial effects of the utility model are, a kind of adaptive base station extension apparatus of the present utility model, can realize the device power output is controlled, in the course of the work, base station call information on the data collecting module collected monitor of remote termination monitoring unit, export to the data analysis module of remote termination monitoring unit, by data analysis module the traffic information data is analyzed and calculated according to certain algorithm, and according to result calculated to whether wanting the adjusting device power output to judge, under the situation that needs are adjusted, the parameter of correlation module is adjusted, reach the purpose of adjusting power.Like this, when stopping up appearred in the base station, device reduced power output automatically, dwindles coverage, reduces the telephone traffic of base station, avoided the base station long-term obstruction to occur, thereby improved network quality.On the other hand, the utility model can also be realized the operating frequency of automatic regulating apparatus, make the parameter of frequency-selector consistent with the frequency of base station, in the course of the work, information on the data collecting module collected base station information analytic unit of near-end machine monitoring unit, export to the data analysis module of near-end machine monitoring unit, by data analysis module the traffic information data is analyzed and calculated according to certain algorithm, and according to result calculated to whether wanting the adjusting device operating frequency to judge, under the situation that needs are adjusted, parameter to correlation module is adjusted, and reaches the purpose of adjusting frequency.Like this, by gathering base station information, the frequency of tracking base stations automatically realizes the carrier frequency of automatic regulating apparatus, and avoiding device to occur for a long time can't operate as normal or a large amount of call drop, improves network quality.The utlity model has very strong practicality.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a principle of device structural representation of the present utility model.
The critical piece symbol description
2 near-end machines, 3 remote terminations
The data output of 20 base station information analytic units, 201 base station information analytic units
231 couplings of 21 donor antenna mouths, 22 duplexers, 23 couplers
24 up attenuator 25 downstream attenuation devices 26 optical modules 27 monitoring units
271 data acquisition modules, 272 data analysis modules, 273 control Executive Modules
The radio frequency delivery outlet of rf input port 263 optical modules of 261 optical interfaces, 262 optical modules
30 monitors, 31 optical modules, 32 frequency-selectors, 33 low noise amplifiers
34 power amplifiers, 311 optical interfaces, 312 rf input ports, 313 radio frequency delivery outlets
35 filters, 36 duplexers, 37 monitoring units, 38 retransmitting antenna mouths
361 duplexer antenna opening
371 data acquisition modules, 372 data analysis modules, 373 control Executive Modules
Embodiment
Describe and other technology contents, characteristics and effect about the utility model, in the detailed description of a first-selected embodiment in following cooperation with reference to the accompanying drawings, can clearly present.
Please refer to Fig. 1, is principle of device structural representation of the present utility model.We can be clear that among the figure, a kind of adaptive base station extension apparatus of the present utility model, a near-end machine 2 and a remote termination 3.Near-end machine 2 comprises base station information analytic unit 20, donor antenna mouth 21, duplexer 22, coupler 23, up attenuator 24, downstream attenuation device 25, optical module 26 and monitoring unit 27.Base station information analytic unit 20 is used for collecting LAC (area code) information, CID (base station numbering) information, CH (frequency numbering) information that comes from the base station, and above-mentioned information analyzed and calculate, and send to near-end machine monitoring unit 27 according to result of calculation.Remote termination 3 comprises optical module 31, frequency-selector 32, low noise amplifier 33, power amplifier 34, filter 35, duplexer 36, monitor 30, monitoring unit 37 and retransmitting antenna mouth 38.
The input port 231 of the coupler 23 of near-end machine 2 is connected with donor antenna mouth 21, the optical interface 261 of optical module is connected with optical fiber, the delivery outlet 232 of coupler 23 is connected with duplexer 22, by donor antenna mouth 21 to the input port of coupler 23, the delivery outlet of input port to the descending delivery outlet of the antenna opening of duplexer 22, duplexer 22 to downstream attenuation device 25 of the delivery outlet 232 of coupler 23, downstream attenuation device 25 is again to the rf input port 262 of optical module 26, the rf input port 262 of optical module 26 is formed down link between the optical interface 261 of optical module 26.Optical interface 261 to radio frequency delivery outlet 263 to the input port of up attenuator 24, the delivery outlet of up attenuator 24 of optical module 26 by optical module 26 formed up link to the delivery outlet 232 of coupler 23, the input port 231 of coupler 23 to the up input port of duplexer 22, the antenna opening of duplexer 22 to donor antenna mouth 21.Coupler 23 is connected with base station information analytic unit 20 by coupling aperture 233, and the data output 201 of base station information analytic unit 20 is connected with monitoring unit 27.
In the remote termination 3, the antenna opening 361 of duplexer 36 is connected with retransmitting antenna mouth 38, the optical interface 311 of optical module 31 is connected with optical fiber, by the delivery outlet of the input port of retransmitting antenna mouth 38 to the up delivery outlet of the antenna opening 361 of duplexer 36, duplexer 36 to low noise amplifier 33, low noise amplifier 33 to the input port of filter 35, the delivery outlet of filter 35, between the optical interface 311 of optical module 31, form up link to the rf input port 312 of optical module 31, the rf input port 312 of optical module 31 again; Optical interface 311 to radio frequency delivery outlet 313 to the input port of frequency-selector 32, delivery outlet to the delivery outlet of power amplifier 34 input ports, power amplifier 34 of frequency-selector 32 of optical module 31 by optical module 31 formed down link to the input port of monitor 30, delivery outlet to the descending input port of duplexer 36, the antenna opening 361 of duplexer 36 of monitor 30 again to retransmitting antenna mouth 38.
The monitoring unit 27 of near-end machine 2 receives the information that comes from base station information analytic unit 20, and formation is analyzed, calculates, handled to information instruct, to the monitoring unit 37 of remote termination or corresponding module output, the operating frequency of adjusting device makes it consistent with the base station.The monitoring unit 37 of remote termination 3, the instruction of the monitoring unit 27 of the near-end machine 2 that the next free optical module 31 of reception is transmitted, and formation is analyzed, calculates, handled in instruction instruct, each module is exported in remote termination; Also receive simultaneously information, and the monitoring unit 27 that the formation data message is issued near-end machine 2 is handled, analyzed to information from each module in the remote termination.The monitor 30 of remote termination 3 is used for the traffic information of each carrier wave in the checkout gear, and data are issued the monitoring unit 37 of remote termination 3, and by the monitoring unit 37 of remote termination 3 it is analyzed, handles, form instruction, the power output of adjusting device, it is long-term congested to prevent that the base station from occurring.
We can also see that the monitoring unit 27 of near-end machine further comprises a data acquisition module 271, a data analysis module 272 and a control Executive Module 273 among the figure.Data acquisition module 271 is connected with base station information analytic unit 20, gathers the frequency information of base station, and exports to data analysis module 272; The input of data analysis module 272 is connected with data acquisition module 271, accepts the data message that data acquisition module 271 is defeated by, and the information of receiving is carried out analytical calculation, obtain a result, and to control Executive Module 273 dateouts; The input of control Executive Module 273 is connected with data analysis module 272, accept the processing signals that data analysis module 272 is defeated by, the output of control Executive Module 273 is connected with each module in the near-end machine respectively, exports control signals to the module of correspondence and the monitoring unit 37 of remote termination 3.Optical module 26 is forwarded to optical module 31 to the instruction of control Executive Module 273, and optical module 31 is forwarded to the monitoring unit 37 of remote termination 3 more then.
The monitoring unit 37 of remote termination 3 also comprises a data acquisition module 371, a data analysis module 372 and a control Executive Module 373.The input of data acquisition module 371 is connected with optical module 31, accept by optical module 31 transmit from the information of the monitoring unit 27 of near-end machine 2 and each module information in the remote termination in the remote equipment 3, and export to data analysis module 372; The input of data analysis module 372 is connected with data acquisition module 371, accepts the data message that data acquisition module 371 is defeated by, and the information of receiving is carried out analytical calculation, obtain a result, and to control Executive Module 373 dateouts; The input of control Executive Module 373 is connected with data analysis module 372, accept the processing signals that data analysis module 372 is defeated by, its output is connected with each module in the remote termination 3 respectively, sends instruction and optical module 31 is exported control signals with the monitoring unit 37 that control command is forwarded to remote termination 3 to the optical module 31 of correspondence.
A kind of adaptive base station extension apparatus of the present utility model, can realize the device power output is controlled, in the course of the work, the base station call information that the data acquisition module 371 of the monitoring unit 37 of remote termination 3 is gathered on the monitor 30, export to the data analysis module 372 of remote termination 3 monitoring units 37, analyze and calculate according to certain algorithm by 372 pairs of traffic information datas of data analysis module, and according to result calculated to whether wanting the adjusting device power output to judge.Under the situation that needs are adjusted, the parameter of correlation module is adjusted, reach the purpose of adjusting power.Like this, when stopping up appearred in the base station, device reduced power output automatically, dwindles coverage, reduces the telephone traffic of base station, avoided the base station long-term obstruction to occur, thereby improved network quality.
A kind of adaptive base station extension apparatus of the present utility model can realize adjusting automatically the channel frequency of adaptive base station.Make the parameter of frequency-selector be adjusted to the state of the command request that meets control centre.In the course of the work, information on the data collecting module collected 271 base station information analytic units 20 of near-end machine 2 monitoring units 27, export to the data analysis module 272 of near-end machine monitoring unit 27, analyze and calculate according to certain algorithm by 272 pairs of traffic information datas of data analysis module, and according to result calculated to whether wanting the adjusting device operating frequency to judge, under the situation that needs are adjusted, the parameter of correlation module is adjusted, reach the purpose of adjusting frequency.Like this, by gathering base station information, the frequency of tracking base stations automatically realizes the carrier frequency of automatic regulating apparatus.
In sum, a kind of self adaptation extension apparatus of the present utility model not only can be realized the device power output is controlled automatically, prevent that long-term the obstruction from appearring in the base station, also can realize frequency from motion tracking, prevent to occur blind area or a large amount of call drop after the base station from changing frequently, have very strong practicality.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (6)
1, a kind of adaptive base station extension apparatus is characterized in that, comprising:
One comprises the near-end machine of base station information analytic unit, donor antenna mouth, coupler, duplexer, communication module, up attenuator, downstream attenuation device, optical module and monitoring unit;
One comprises the remote termination of optical module, frequency-selector, low noise amplifier, power amplifier, filter, duplexer, monitor, monitoring unit and retransmitting antenna mouth;
Described base station information analytic unit is one to be used for collecting LAC (area code) information, CID (base station numbering) information, CH (frequency numbering) information that comes from the base station, and above-mentioned information analyzed and calculate, and send to the device of near-end machine monitoring unit according to result of calculation;
The coupler input port of described near-end machine is connected with the donor antenna mouth, the optical interface of optical module is connected with optical fiber, by the donor antenna mouth to the input port of coupler, input port to the descending delivery outlet of the antenna opening of duplexer, duplexer to the downstream attenuation device of the delivery outlet of coupler, downstream attenuation device delivery outlet be to the optical module rf input port, the optical module rf input port is formed down link between the optical interface of optical module; By the optical interface of optical module to optical module radio frequency delivery outlet, optical module radio frequency delivery outlet to up attenuator input port, the delivery outlet of up attenuator forms up link to coupler delivery outlet, coupler input port to the up input port of duplexer, the antenna opening of duplexer to the donor antenna mouth; The coupling aperture of coupler is connected with the base station information analytic unit, and base station information analytic unit data port is connected with monitoring unit;
The duplexer antenna opening of described remote termination is connected with the retransmitting antenna mouth, the optical interface of optical module is connected with optical fiber, by the retransmitting antenna mouth to the up delivery outlet of the antenna opening of duplexer, duplexer to the low noise amplifier input port, the low noise amplifier delivery outlet to the filter input port, filter delivery outlet to the rf input port of optical module rf input port, optical module forms up link to the optical interface of optical module; By the optical interface of optical module to the radio frequency delivery outlet of the radio frequency delivery outlet of optical module, optical module to the frequency-selector input port, the frequency-selector delivery outlet to the power amplifier input port, power amplifier delivery outlet to the input port of monitor, delivery outlet to the descending input port of duplexer, the antenna opening of duplexer of monitor form down link to the retransmitting antenna mouth.
2, a kind of adaptive base station extension apparatus as claimed in claim 1, it is characterized in that, the monitoring unit of described near-end machine is one to be used for receiving the information that comes from confidence analysis unit, base station, and formation is analyzed, calculates, handled to information instruct, each module output in the monitoring unit of remote termination or near-end machine, the operating frequency of adjusting device makes it and the corresponding to device in base station.
3, a kind of adaptive base station extension apparatus as claimed in claim 1, it is characterized in that, the monitoring unit of described remote termination is that a near-end machine monitoring unit that is used for receiving free optical module to transmit instructs, and formation is analyzed, calculates, handled in instruction instruct, each module output in remote termination; Also receive simultaneously information, and the device that the formation data message is issued near-end machine monitoring unit is handled, analyzed to information from each module in the remote termination.
4, a kind of adaptive base station extension apparatus as claimed in claim 1, it is characterized in that, the monitor of described remote termination is a telephone traffic information that is used for each carrier wave in the monitoring device, and data are issued the monitoring unit of remote termination, monitoring unit by remote termination is analyzed, is handled it, form instruction, the power output of adjusting device prevents that long-term congested device from appearring in the base station.
5, a kind of adaptive base station extension apparatus as claimed in claim 1 or 2, it is characterized in that, the monitoring unit of described near-end machine comprises that one is connected with the base station information analytic unit, gathers the frequency information of base station, and exports to the data acquisition module of data analysis module; One input is connected with data acquisition module, accepts the data message that data acquisition module is defeated by, and the information of receiving is carried out analytical calculation, obtains a result, and exports the data analysis module of processing signals to the control Executive Module; One input is connected with data analysis module, accepts the processing signals that data analysis module is defeated by, and output is connected with each module in the near-end machine respectively, exports the control Executive Module of control signal to the module of correspondence and remote termination monitoring unit.
6, as claim 1 or 3 described a kind of adaptive base station extension apparatus, it is characterized in that, the monitoring unit of described remote termination comprises that an input is connected with optical module, acceptance by optical module transmit from the information of near-end machine monitoring unit and the module information in the remote equipment, and export to the data acquisition module of data analysis module; One input is connected with data acquisition module, accepts the data message that data acquisition module is defeated by, and the information of receiving is carried out analytical calculation, obtains a result and exports the data analysis module of processing signals to the control Executive Module; One input is connected with data analysis module, accepts the processing signals that data analysis module is defeated by, and output is connected with each module in the far-end respectively, exports the control Executive Module of control signal to the monitoring unit of the module of correspondence and remote termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201019202U CN201174765Y (en) | 2008-04-09 | 2008-04-09 | Self-adapting base station pulling far apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201019202U CN201174765Y (en) | 2008-04-09 | 2008-04-09 | Self-adapting base station pulling far apparatus |
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| CN201174765Y true CN201174765Y (en) | 2008-12-31 |
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|---|---|---|---|
| CNU2008201019202U Expired - Fee Related CN201174765Y (en) | 2008-04-09 | 2008-04-09 | Self-adapting base station pulling far apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646190B (en) * | 2009-09-15 | 2011-11-02 | 武汉虹信通信技术有限责任公司 | Method and system for realizing automatic frequency search of GSM digital remote system |
| CN103580734A (en) * | 2012-07-27 | 2014-02-12 | 财团法人工业技术研究院 | Antenna control method and system |
| CN111901803A (en) * | 2020-07-10 | 2020-11-06 | 展讯通信（上海）有限公司 | Communication interaction method, master node, slave node, indoor distribution system and medium |
-
2008
- 2008-04-09 CN CNU2008201019202U patent/CN201174765Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646190B (en) * | 2009-09-15 | 2011-11-02 | 武汉虹信通信技术有限责任公司 | Method and system for realizing automatic frequency search of GSM digital remote system |
| CN103580734A (en) * | 2012-07-27 | 2014-02-12 | 财团法人工业技术研究院 | Antenna control method and system |
| CN103580734B (en) * | 2012-07-27 | 2017-05-03 | 财团法人工业技术研究院 | antenna control method and system |
| CN111901803A (en) * | 2020-07-10 | 2020-11-06 | 展讯通信（上海）有限公司 | Communication interaction method, master node, slave node, indoor distribution system and medium |
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Granted publication date: 20081231 Termination date: 20140409 |