CN102325389A - GSM micropower repeater of automatic locking base station BCCH (Broadcast Control Channel) - Google Patents
GSM micropower repeater of automatic locking base station BCCH (Broadcast Control Channel) Download PDFInfo
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- CN102325389A CN102325389A CN201110304284A CN201110304284A CN102325389A CN 102325389 A CN102325389 A CN 102325389A CN 201110304284 A CN201110304284 A CN 201110304284A CN 201110304284 A CN201110304284 A CN 201110304284A CN 102325389 A CN102325389 A CN 102325389A
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- 230000002093 peripheral effect Effects 0.000 abstract description 3
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Abstract
The invention discloses a GSM micropower repeater of an automatic locking base station BCCH (Broadcast Control Channel), which belongs to the technical field of communication signal amplifying equipment. The GSM micropower repeater of an automatic locking base station BCCH comprises a donor end duplexer, a downlink low-noise amplifier, a downlink band selector, a downlink power amplifier, a retransmission end duplexer, an uplink low-noise amplifier, an uplink band selector and an uplink power amplifier and also comprises a switch SW1, a carrier frequency selector, a coupler, a power detecting module, an MCU (Microprogrammed Control Unit) and a GSMmodem, wherein the switch SW1 is controlled by the MCU; and the carrier frequency selector is controlled by the MCU. The repeater can automatically lock and improve the BCCH level of a main service cell and solves the problem that a mobile phone is frequently switched and disconnected caused by that the main service cell is not arranged in the signal coverage area, the BCCH signal of a peripheral cell is close to a BCCH signal level value of the cell and the mobile phone frequently switches the BCCH in the cell selecting program.
Description
Technical field
The invention belongs to signal of communication multiplying arrangement technical field, relate in particular to a kind of GSM micro-power repeater.
Background technology
Along with development of city, the block is more and more intensive, and skyscraper is also more and more, and base station planning also is more and more intensive in the corresponding urban district, whenever at a distance from 1 kilometer 1 base station is just arranged.Like this, geometric center that repeats to cover at some neighbor cells such as intensive community and skyscraper, the covering level of this type regional service sub-district and neighbor cell differs in 5dB.Zone at this type is too frequent owing to there not being the replacing of leading sub-district or leading sub-district, has caused reducing the service quality and the wireless shrouding system efficient of whole network, and the low noise of network can promote appearance such as the network problem that increased dropped call greatly simultaneously.A kind of communication apparatus--repeater has appearred to this problem.
The repeater belongs to the frequency multiplying arrangement, is a kind of a kind of wireless forwarding unit that in the wireless communication transmissions process, plays the signal humidification.The basic function of repeater is exactly a radiofrequency signal power intensifier.The repeater is in down link; By pickoff signals in the existing overlay area of donor antenna; Hold duplexer, descending low noise amplifier to descending choosing band device through the alms giver; Descending choosing band device is transmitted into signal with filtered signal once more then and treats the overlay area carrying out fabulous isolation with logical outer signal after downlink power amplifier is amplified.In up link, the signal of the travelling carriage mobile phone in the overlay area is transmitted into corresponding base station with same working method after by uplink processing, thereby reaches the signal transmission between base station and mobile phone.
At present conventional repeater does not possess the BCCH broadcast channel of automatic selection base station and to its function of amplifying separately; Digital optical fiber direct station and overloading wireless discharging-directly station frequently all have the carrier frequency function; But the channel number of every road carrier frequency all need artificially be set in the actual use, could realize effectively to the base station signal enlarging function.And the cost that digital optical fiber direct station and overloading frequency wireless discharging-directly station are every is all very high, and it obviously is expensive dropping into to these little zones.Along with the network later stage optimize to be brought in constant renewal in and since digital optical fiber direct station, overloading frequently wireless discharging-directly station all be that channel number artificially is set, and channel resource fixes, then the maintenance in repeater later stage and upgrade job amount are bigger.
Summary of the invention
The technical problem that the present invention will solve provides a kind of repeater that can automatically lock base station BCCH channel, has characteristics simple in structure, that cost is lower, practical.
The technical scheme that the present invention taked is: a kind of GSM micro-power repeater that automatically locks base station BCCH channel; Comprise that the alms giver holds duplexer, descending low noise amplifier, descending choosing band device, downlink power amplifier, repeating transmission end duplexer, up low noise amplifier, up choosing band device and ascending power amplifier; It is characterized in that said repeater also comprises the switch SW 1 that is controlled by MCU, the carrier frequency frequency-selector that is controlled by MCU, coupler, power detection module, MCU and GSM modem; Said switch SW 1 is connected between said descending low noise amplifier and the descending choosing band device; The output of the said descending low noise amplifier of input termination of said carrier frequency frequency-selector; The input of the said downlink power amplifier of output termination of said carrier frequency frequency-selector; The output one tunnel of said downlink power amplifier connects the input of MCU through power detection module; Another road of the output of said downlink power amplifier holds duplexer, coupler to be connected with the input of GSM modem through retransmitting, and said GSM modem is connected with said MCU is two-way, and the output of said MCU is connected with the control end of said switch SW 1 and the control end of carrier frequency frequency-selector.
Said alms giver holds duplexer, descending low noise amplifier, switch SW 1, descending choosing band device, carrier frequency frequency-selector, downlink power amplifier and repeating transmission end duplexer to form down link; Said alms giver holds the input of the said descending low noise amplifier of output termination of duplexer; The output one tunnel of said descending low noise amplifier is through the carrier frequency frequency-selector; Another road connects the input of said downlink power amplifier, the input of the said repeating transmission end of the output termination duplexer of said downlink power amplifier through switch SW 1, descending choosing band device.
Said repeating transmission end duplexer, up low noise amplifier, up choosing band device, ascending power amplifier, alms giver hold duplexer to form up link, the input of the said up low noise amplifier of output termination of said repeating transmission end duplexer; The input of the said up choosing band device of the output termination of said up low noise amplifier; The said ascending power amplifier input terminal of the output termination of said up choosing band device; The said alms giver of output termination of said ascending power amplifier holds the input of duplexer.
The model of said MCU is: PIC16F883.
The model of said GSM modem is: GSM900C.
Beneficial effect of the present invention is following: at first; Said repeater can automatically lock and promote the BCCH channel level of main Serving cell; Solved signal coverage areas dereliction Serving cell; The BCCH signal of peripheral cell is approaching with the BCCH signal level value of this sub-district, and mobile phone is frequent in selecting the sub-district program to switch the BCCH channel, thereby mobile phone frequently switches the problem of call drop.Secondly, said repeater can select peak signal in this zone as information source automatically, has guaranteed speech quality, has improved client's satisfaction.Once more,, can refresh current BCCH channel automatically, avoid the manual maintenance in later stage, save labor owing to be provided with carrier frequency frequency-selector and choosing band device in the said rate repeater.At last, said repeater has only increased few components on the basis of original repeater, have simple in structure, practical, the advantage that cost is low.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 1 is a structured flowchart of the present invention.
Embodiment
As shown in Figure 1; A kind of GSM micro-power repeater that automatically locks base station BCCH channel comprises that the alms giver holds duplexer, descending low noise amplifier, descending choosing band device, downlink power amplifier, repeating transmission end duplexer, up low noise amplifier, up choosing band device and ascending power amplifier.It is characterized in that said repeater also comprises the switch SW 1 that is controlled by MCU, the carrier frequency frequency-selector that is controlled by MCU, coupler, power detection module, MCU and GSM modem.The model of said MCU is: PIC16F883, the model of said GSM modem is: GSM900C.Said switch SW 1 is connected between said descending low noise amplifier and the descending choosing band device; The output of the said descending low noise amplifier of input termination of said carrier frequency frequency-selector; The input of the said downlink power amplifier of output termination of said carrier frequency frequency-selector; The output one tunnel of said downlink power amplifier connects the input of MCU through power detection module; Another road of the output of said downlink power amplifier holds duplexer, coupler to be connected with the input of GSM modem through retransmitting, and said GSM modem is connected with said MCU is two-way, and the output of said MCU is connected with the control end of said switch SW 1 and the control end of carrier frequency frequency-selector.
Said alms giver holds duplexer, descending low noise amplifier, switch SW 1, descending choosing band device, carrier frequency frequency-selector, downlink power amplifier and repeating transmission end duplexer to form down link; Said alms giver holds the input of the said descending low noise amplifier of output termination of duplexer; The output one tunnel of said descending low noise amplifier is through the carrier frequency frequency-selector; Another road connects the input of said downlink power amplifier, the input of the said repeating transmission end of the output termination duplexer of said downlink power amplifier through switch SW 1, descending choosing band device.
Said repeating transmission end duplexer, up low noise amplifier, up choosing band device, ascending power amplifier, alms giver hold duplexer to form up link, the input of the said up low noise amplifier of output termination of said repeating transmission end duplexer; The input of the said up choosing band device of the output termination of said up low noise amplifier; The said ascending power amplifier input terminal of the output termination of said up choosing band device; The said alms giver of output termination of said ascending power amplifier holds the input of duplexer.
The operation principle of said repeater is following: at first; MCU control switch SW1 is in off-state; The assurance down link signal holds duplexer to descending low noise amplifier by the alms giver, behind the carrier frequency frequency-selector, behind coupler, is input to GSM modem to retransmitting the end duplexer again to downlink power amplifier.Secondly, MCU control carrier frequency frequency-selector switches it successively in communication work channel (1-94 or 96-124 channel number, or predetermined channel).When switching successively; MCU notes corresponding to the performance number of power detection module to each corresponding channel of MCU; And when switching successively; MCU also notes through coupler to GSM modem and provide current BCCH channel number to MCU, if BCCH channel number that GSM modem provides and above-mentioned MCU current the channel number phase time is set, then preserve current channel number.At last, MCU inquiry from all channel numbers of preserving meets respective operator and uses that respective channels power is the BCCH channel number of maximum power value in the frequency range, and it is set to the working channel of carrier frequency frequency-selector.MCU is control switch SW1 simultaneously, and it is closed, and descending choosing band device and carrier frequency frequency-selector are worked simultaneously.The working method of up choosing band device and descending choosing band device is the working method of fixed-bandwidth.
At first; Said repeater can automatically lock and promote the BCCH channel level of main Serving cell; Solved signal coverage areas dereliction Serving cell; The BCCH signal of peripheral cell is approaching with the BCCH signal level value of this sub-district, make the mobile phone frequent BCCH of switching channel in selecting the sub-district program, thereby mobile phone frequently switches the problem of call drop.Secondly, said repeater can select peak signal in this zone as information source automatically, has guaranteed speech quality, has improved client's satisfaction.Once more,, can refresh current BCCH channel automatically, avoid the manual maintenance in later stage, save labor owing to be provided with carrier frequency frequency-selector and choosing band device in the said repeater.At last, said repeater has only increased few components on the basis of original repeater, have simple in structure, practical, the advantage that cost is low.
Claims (5)
1. GSM micro-power repeater that automatically locks base station BCCH channel; Comprise that the alms giver holds duplexer, descending low noise amplifier, descending choosing band device, downlink power amplifier, repeating transmission end duplexer, up low noise amplifier, up choosing band device and ascending power amplifier; It is characterized in that said repeater also comprises the switch SW 1 that is controlled by MCU, the carrier frequency frequency-selector that is controlled by MCU, coupler, power detection module, MCU and GSM modem; Said switch SW 1 is connected between said descending low noise amplifier and the descending choosing band device; The output of the said descending low noise amplifier of input termination of said carrier frequency frequency-selector; The input of the said downlink power amplifier of output termination of said carrier frequency frequency-selector; The output one tunnel of said downlink power amplifier connects the input of MCU through power detection module; Another road of the output of said downlink power amplifier holds duplexer, coupler to be connected with the input of GSM modem through retransmitting, and said GSM modem is connected with said MCU is two-way, and the output of said MCU is connected with the control end of said switch SW 1 and the control end of carrier frequency frequency-selector.
2. a kind of GSM micro-power repeater that automatically locks base station BCCH channel according to claim 1; It is characterized in that said alms giver holds duplexer, descending low noise amplifier, switch SW 1, descending choosing band device, carrier frequency frequency-selector, downlink power amplifier and repeating transmission end duplexer to form down link; Said alms giver holds the input of the said descending low noise amplifier of output termination of duplexer; The output one tunnel of said descending low noise amplifier is through the carrier frequency frequency-selector; Another road connects the input of said downlink power amplifier, the input of the said repeating transmission end of the output termination duplexer of said downlink power amplifier through switch SW 1, descending choosing band device.
3. a kind of GSM micro-power repeater that automatically locks base station BCCH channel according to claim 2; It is characterized in that said repeating transmission end duplexer, up low noise amplifier, up choosing band device, ascending power amplifier, alms giver hold duplexer to form up link, the input of the said up low noise amplifier of output termination of said repeating transmission end duplexer; The input of the said up choosing band device of the output termination of said up low noise amplifier; The said ascending power amplifier input terminal of the output termination of said up choosing band device; The said alms giver of output termination of said ascending power amplifier holds the input of duplexer.
4. a kind of GSM micro-power repeater that automatically locks base station BCCH channel according to claim 3 is characterized in that the model of said MCU is: PIC16F883.
5. a kind of GSM micro-power repeater that automatically locks base station BCCH channel according to claim 4 is characterized in that the model of said GSM modem is: GSM900C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110304284 CN102325389B (en) | 2011-10-10 | 2011-10-10 | GSM micropower repeater of automatic locking base station BCCH (Broadcast Control Channel) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110304284 CN102325389B (en) | 2011-10-10 | 2011-10-10 | GSM micropower repeater of automatic locking base station BCCH (Broadcast Control Channel) |
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| CN102325389A true CN102325389A (en) | 2012-01-18 |
| CN102325389B CN102325389B (en) | 2013-08-14 |
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| CN 201110304284 Expired - Fee Related CN102325389B (en) | 2011-10-10 | 2011-10-10 | GSM micropower repeater of automatic locking base station BCCH (Broadcast Control Channel) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024780A (en) * | 2012-12-27 | 2013-04-03 | 深圳市桑达无线通讯技术有限公司 | Method of controlling cell locking by mobile terminal |
| CN103945466A (en) * | 2014-04-02 | 2014-07-23 | 京信通信系统（中国）有限公司 | Method and equipment for determining candidate switching cell set |
| CN111862410A (en) * | 2020-06-30 | 2020-10-30 | 北京骑胜科技有限公司 | Intelligent lock control method, device, equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2003101011A1 (en) * | 2002-05-20 | 2003-12-04 | Aircell, Inc. | Signal translating repeater operable in a non-terrestrial environment |
| WO2004032371A1 (en) * | 2002-09-30 | 2004-04-15 | Science Applications International Corporation | Method and system for a channel selective repeater with capacity enhancement in a spread-spectrum wireless network |
| CN201188615Y (en) * | 2008-04-25 | 2009-01-28 | 天津赛乐电子技术有限公司 | GSM frequency-hopping straightly-discharging station using baseband decoding mode |
| CN102118188A (en) * | 2009-12-30 | 2011-07-06 | 天津赛乐电子技术有限公司 | GSM (Global System for Mobile communications) repeater capable of obtaining corresponding frequency hopping frequency point by utilizing frequency locking |
| CN202231874U (en) * | 2011-10-10 | 2012-05-23 | 徐兆东 | GSM micropower repeater capable of automatically locking base station BCCH |
-
2011
- 2011-10-10 CN CN 201110304284 patent/CN102325389B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003101011A1 (en) * | 2002-05-20 | 2003-12-04 | Aircell, Inc. | Signal translating repeater operable in a non-terrestrial environment |
| WO2004032371A1 (en) * | 2002-09-30 | 2004-04-15 | Science Applications International Corporation | Method and system for a channel selective repeater with capacity enhancement in a spread-spectrum wireless network |
| CN201188615Y (en) * | 2008-04-25 | 2009-01-28 | 天津赛乐电子技术有限公司 | GSM frequency-hopping straightly-discharging station using baseband decoding mode |
| CN102118188A (en) * | 2009-12-30 | 2011-07-06 | 天津赛乐电子技术有限公司 | GSM (Global System for Mobile communications) repeater capable of obtaining corresponding frequency hopping frequency point by utilizing frequency locking |
| CN202231874U (en) * | 2011-10-10 | 2012-05-23 | 徐兆东 | GSM micropower repeater capable of automatically locking base station BCCH |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024780A (en) * | 2012-12-27 | 2013-04-03 | 深圳市桑达无线通讯技术有限公司 | Method of controlling cell locking by mobile terminal |
| CN103024780B (en) * | 2012-12-27 | 2015-04-29 | 深圳市桑达无线通讯技术有限公司 | Method of controlling cell locking by mobile terminal |
| CN103945466A (en) * | 2014-04-02 | 2014-07-23 | 京信通信系统（中国）有限公司 | Method and equipment for determining candidate switching cell set |
| CN111862410A (en) * | 2020-06-30 | 2020-10-30 | 北京骑胜科技有限公司 | Intelligent lock control method, device, equipment and storage medium |
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| Publication number | Publication date |
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| CN102325389B (en) | 2013-08-14 |
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Application publication date: 20120118 Assignee: Shijiazhuang Development Zone Xintai Communication Technology Co.,Ltd. Assignor: Xu Zhaodong Contract record no.: 2015130000074 Denomination of invention: GSM micropower repeater of automatic locking base station BCCH (Broadcast Control Channel) Granted publication date: 20130814 License type: Exclusive License Record date: 20150514 |
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Effective date of registration: 20210914 Address after: 050091 room 1402, Zhuoda academician building, 380 Xinshi North Road, Shijiazhuang City, Hebei Province Patentee after: Hebei Huifeng Network Technology Development Co.,Ltd. Address before: 050091 Hebei province Shijiazhuang City Xinshi North Road, No. 380 14 storey building Zhuoda Academicians Patentee before: Xu Zhaodong |
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Granted publication date: 20130814 |