CN202799163U - Multi-network digital distribution system and near-end equipment thereof - Google Patents
Multi-network digital distribution system and near-end equipment thereof Download PDFInfo
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- CN202799163U CN202799163U CN 201220379297 CN201220379297U CN202799163U CN 202799163 U CN202799163 U CN 202799163U CN 201220379297 CN201220379297 CN 201220379297 CN 201220379297 U CN201220379297 U CN 201220379297U CN 202799163 U CN202799163 U CN 202799163U
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Abstract
The utility model relates to a multi-network digital distribution system and near-end equipment of the multi-network digital distribution system, wherein a wireless communication signal like global system for mobile communications (GSM)/code division multiple access (CDMA) is converted into a digital optical signal; the digital optical signal is mixed with an Ethernet signal; the obtained complex data is transmitted to user home by five lines, and the digital optical signal is separated from the Ethernet signal by a user through a user terminal; the Ethernet signal is applied to a computer; and the digital optical signal is converted into a 2G signal, a 3G signal or a 4G signal by the user terminal, and are then applied to a mobile telephone or a telephone of the user. Therefore, the indoor wireless signal becomes much better and is free from influence of external topographies and buildings; and precise coverage of wideband and mobile communication is realized.
Description
Technical field
The utility model relates to wireless communication technology field, particularly a kind of many network datas compartment system and proximal device thereof.
Background technology
In recent years, along with the impact of the IT wave that have swepts the globe on social life grows with each passing day, based on network new business and new experience continue to bring out, so that the public is day by day strong to multiple services integration requirement.The single network architectural framework of traditional single service provider is faced with unprecedented challenge.Anyone can realize in any place from being fixed to movement, and from the image to voice, data, the informatized life from communication to video is experienced has become powerful user's request.
Up to the present, the multiple indoor compartment system has appearred on the market, a kind of first generation indoor distributed system that is called as wherein, be a kind of passive distribution system, it is assigned to each large-scale overlay area with power utilization passive device (mixer, power splitter, coupler, antenna) and the radio frequency cable of base station or microcellulor.This system supports many nets system, once is considered to satisfy the perfect indoor distributed system of future communications development, is widely used in China Mobile GSM and the GSM of CHINAUNICOM.Along with the technology of DCS (Distributed Control System, dcs) and 3G (3rd-Generation, 3G (Third Generation) Moblie technology) is used, it is excessive at the Insertion Loss of high band.Because base station equipment is expensive, cause indoor covering high cost, bandwidth but investment is high, the networking cycle is longer, substantially withdraw from the market now.
Another kind is called as second generation compartment system, it is a kind of passive distribution system that adopts active compensation equipment, it introduced on the basis of first generation indoor distributed system driedly put, loss that the active equipment such as repeater compensates the passive distribution system, at present 2G, the 3G system of extensive use mobile communication.
But, second generation compartment system has also brought the problems such as frequency band is narrow, lifting is made an uproar at the end, failure rate height, although cost is relatively low, but it also has, and difficulty of construction is large, the degree of depth cover not enough, cover that absorptive capacity is not enough, monitoring is not in place and the problems such as property difficult coordination, can not satisfy the demand of key customer and dispersion user.
The utility model content
The characteristics such as main purpose of the present utility model is, for above-mentioned deficiency of the prior art, provides a kind of many network datas compartment system and proximal device thereof, and the compatibilities of net more than having, easy construction, low noise and overlay area are wide.
For achieving the above object, the utility model by the following technical solutions.
The utility model provides a kind of many network datas compartment system proximal device, be used for radio frequency signal and digital signal are changed mutually, described proximal device comprises G/C net signal receiving module, G/C net signal transmitting module, the ADC module, the DAC module, the DSP module, the digital light module, after described G/C net signal receiving module receives the GSM/CDMA wireless signal, become digital baseband signal by described ADC module converts, and described digital baseband signal is input in the described DSP module, convert described digital baseband signal to digital optical signal, and by described digital light module output; Perhaps, described digital light module outputs in the DSP module after receiving described digital optical signal, described digital optical signal is converted to digital baseband signal, and described digital baseband signal is the GSM/CDMA wireless signal through described DAC module converts again, and by described G/C net signal transmitting module output.
Preferably, also comprise the digital mixing module, described digital mixing module is used for converting digital baseband signal to digital medium-frequency signal, again through the DAC module, be converted to the GSM/CDMA wireless signal, perhaps, described digital mixing module converts digital baseband signal to for the digital medium-frequency signal that described ADC module converts is obtained.
Preferably, also comprise mixting circuit, described mixting circuit is used for the intermediate-freuqncy signal of described digital mixing module output is converted to the GSM/CDMA wireless signal, perhaps, described mixting circuit is used for converting the GSM/CDMA wireless signal to intermediate-freuqncy signal, becomes digital medium-frequency signal by described ADC module converts again.
Preferably, also comprise microcontroller, for generation of fsk modulated signal, described digital baseband signal is converted to digital optical signal, or described digital optical signal is converted to digital baseband signal.
Preferably, also comprise clock module, described clock module provides stable clock signal for described G/C net signal receiving module, G/C net signal transmitting module, ADC module, DAC module and DSP module.
Preferably, also comprise power module, described power module provides constant voltage dc source for described G/C net signal receiving module, G/C net signal transmitting module, ADC module, DAC module and DSP module.
Preferably, also comprise monitoring module, described monitoring module is connected with described microcontroller, and when receiving the fault message that described microcontroller sends, described monitoring module produces alarm signal.
Preferably, also comprise 4G signal receiving module and 4G signal transmitting module, described 4G signal receiving module and described G/C net signal receiving module are arranged in parallel, and described 4G signal transmitting module and described G/C net signal transmitting module are arranged in parallel.
The utility model also provides a kind of many network datas compartment system, described many network datas compartment system comprises above-mentioned proximal device, also comprise relay extension equipment and user terminal, described proximal device is converted to digital optical signal with the GSM/CDMA wireless signal, and input in the described relay extension equipment, described relay extension equipment is sent to described user terminal with described digital optical signal and ethernet signal and the complex data that will organize behind the bag by gigabit networking, and described user terminal is isolated GSM/CDMA wireless signal and ethernet signal from described complex data.
Than above-mentioned prior art, the utlity model has following advantage.
1, adopt digital noise to suppress technology, each proximal device is supported 256 user terminals;
2, multisystem digital convergence, construction cost is saved with the transmission of circuit common network in 2G, 3G and broadband;
3, multiple subscriber unit form is supported chamber subsystem and the covering of registering one's residence, and networking is flexible;
4, the subscriber unit transmitting power little (≤50mW), little to human body radiation;
5, engineering construction and plant maintenance are simple, quick;
6, can solve key customer and dispersion telephone traffic;
7, low in energy consumption, energy-conserving and environment-protective;
8, have perfect monitoring function, can locate rapidly and accurately abort situation, saved maintenance cost.
Description of drawings
Fig. 1 is the network topological diagram of many network datas compartment system among the utility model embodiment.
Fig. 2 is the structural framing figure of proximal device among the utility model embodiment.
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Describe the technical solution of the utility model in detail below with reference to drawings and the specific embodiments, so as clearer, understand invention essence of the present utility model intuitively.
Fig. 1 is the network topological diagram of many network datas compartment system among the utility model embodiment.
With reference to shown in Figure 1, present embodiment at first provides a kind of many network datas compartment system 100, this system comprises proximal device 1, relay extension equipment 2 and user terminal 3, this proximal device 1 is used for the GSM/CDMA wireless signal is converted to digital optical signal, and in the input relay extension equipment 2, relay extension equipment 2 is with digital optical signal and ethernet signal group bag, and the complex data that will organize after wrapping by gigabit networking is sent to user terminal 3, user terminal 3 is isolated GSM/CDMA wireless signal and ethernet signal from above-mentioned complex data, the GSM/CDMA wireless signal is used for the mobile communication terminals such as mobile phone, ethernet signal is then for network equipments such as computers, thus the functions that the many nets of realization distribute.
Particularly, proximal device 1 is exported digital optical signal, be transmitted through the fiber to residential quarter, user place or building, be linked into the fiber cable cross connection box of this residential quarter or building, tell several relay extension equipment 2 by this fiber cable cross connection box 200 again, then the broadband network with this residential quarter or building accesses in the relay extension equipment 2, with described digital optical signal and ethernet signal group bag by category-5 cable, form complex data, and complex data is transferred to user terminal 3 by category-5 cable.User terminal 3 generally is installed in the subscriber household, is used for the mobile communication equipment to the user, provides 2G, 3G even 4G signal such as mobile phone etc., makes the user can receive very good wireless communication signal.
Many network datas compartment system 100 of present embodiment is by existing broadband network networking, after converting the GSM/CDMA wireless signal to digital optical signal, by Optical Fiber Transmission, and undertaken compound by relay extension equipment 2 and ethernet signal, then adopt existing broadband network passage with transmission of wireless signals in user family, form indoor wireless net compartment system, solved the problem of construction inconvenience and property difficult coordination, be convenient to extensive covering, as long as there is the place in broadband to lay.
Fig. 2 is the structural framing figure of proximal device among the utility model embodiment.
With reference to shown in Figure 2, present embodiment provides a kind of proximal device 1 for many nets compartment system based on embodiment illustrated in fig. 1, and this proximal device 1 can be changed radio frequency signal and digital signal mutually.
The proximal device 1 of present embodiment mainly comprises G/C net signal receiving module 11, G/C net signal transmitting module 12, ADC module 13, DAC module 14, DSP module 15, digital light module 16.After G/C net signal receiving module 11 receives the GSM/CDMA wireless signal, convert digital baseband signal to by ADC module 13, and digital baseband signal is input in the DSP module 15 (model may be selected to be FPGAEP4CGX75F484), convert digital baseband signal to digital optical signal, and by 16 outputs of digital light module; Output in the DSP module 15 after perhaps digital light module 16 receives digital optical signal, digital optical signal is converted to digital baseband signal, digital baseband signal is converted to the GSM/CDMA wireless signal through DAC module 14 again, and by 12 emissions of G/C net signal transmitting module.
Particularly, digital mixing module (not shown) also can be set in proximal device 1, this digital mixing module is used for converting digital baseband signal to digital medium-frequency signal, again through DAC module 14, be converted to the GSM/CDMA wireless signal, perhaps, the digital mixing module converts digital baseband signal to for the digital medium-frequency signal that ADC module 13 is converted to.
Simultaneously, the proximal device 1 of present embodiment also can comprise mixting circuit (not shown), this mixting circuit is used for the digital medium-frequency signal of digital mixing module output is converted to the GSM/CDMA wireless signal, perhaps, mixting circuit is used for converting the GSM/CDMA wireless signal to intermediate-freuqncy signal, converts digital medium-frequency signal to by ADC module 14 again.
In addition, also comprise microcontroller 17, for generation of fsk modulated signal, so that digital baseband signal is converted to digital optical signal, or digital optical signal is converted to digital baseband signal.
The proximal device 1 of present embodiment also is provided with clock module 18, this clock module 18 provides stable clock signal for G/C net signal receiving module 11, G/C net signal transmitting module 12, ADC module 13, DAC module 14 and DSP module 15, for each module provides synchronous sequential, make its synchronous coordination work.
The proximal device 1 of present embodiment is active device, it also comprises power module 19, and this power module 19 provides respectively constant voltage dc source for G/C net signal receiving module 11, G/C net signal transmitting module 12, ADC module 13, DAC module 14 and DSP module 15, digital light module 16, microcontroller 17 and clock module 18.
For the ease of place and the reason that can recognize in real time that fault occurs, present embodiment also is equipped with monitoring module 110 at proximal device 1, this monitoring module 110 is connected with microcontroller 17, when receiving the fault message that microcontroller 17 sends, monitoring module 110 just produces alarm signal, this alarm signal is beamed back the base station, and with the place of reminding base station fault to occur, the easy access personnel can in time fix a breakdown.
Operation principle and circuit structure characteristics according to proximal device 1 of the present utility model, above-mentioned G/C net signal receiving module 11 can replace with 4G signal receiving module (not shown), G/C net signal transmitting module 12 can replace with 4G signal transmitting module (not shown), so that the 4G signal is replaced 2G and 3G signal, so that when 2G and 3G signal are stopped using, can remove easily corresponding module.Perhaps, in proximal device and user terminal 3, increase 4G signal receiving module and 4G signal transmitting module, and this 4G signal receiving module and 4G signal transmitting module are arranged in parallel with G/C net signal receiving module 11 and G/C net signal transmitting module 12 respectively.Like this, just can be simultaneously 2G, 3G and 4G signal be input in many network datas compartment system and change, make the user also can receive the 4G cell phone signal.
In sum, many network datas compartment system of the present utility model and proximal device thereof, employing is converted to digital optical signal with wireless communication signal such as GSM/CDMA, then described digital optical signal and ethernet signal is compound, utilize category-5 cable to be transferred in the user family complex data that obtains again, the user separates digital optical signal and ethernet signal by user terminal again, ethernet signal is used for computer, digital optical signal is after user terminal conversion, form 2G, 3G or 4G signal, mobile phone for the user, phone uses, make indoor wireless signal become very good, be not subjected to the impact of extraneous landform and building, realize the broadband, mobile communication, WLAN accurately covers.And dilatation way is flexible, only need or remove 4G signal transmitting and receiving module in proximal device and user terminal increase, just can increase or remove the 4G signal, and needn't network configuration be transformed, and is very convenient, and saved widely the cost of networking.
The above only is preferred embodiment of the present utility model; be not so limit its claim; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (9)
1. the proximal device of network data compartment system more than a kind, be used for radio frequency signal and digital signal are changed mutually, it is characterized in that: described proximal device comprises G/C net signal receiving module, G/C net signal transmitting module, the ADC module, the DAC module, the DSP module, the digital light module, after described G/C net signal receiving module receives the GSM/CDMA wireless signal, become digital baseband signal by described ADC module converts, and described digital baseband signal is input in the described DSP module, convert described digital baseband signal to digital optical signal, and by described digital light module output;
Perhaps, described digital light module outputs in the DSP module after receiving described digital optical signal, described digital optical signal is converted to digital baseband signal, and described digital baseband signal is the GSM/CDMA wireless signal through described DAC module converts again, and by described G/C net signal transmitting module output.
2. many network datas compartment system proximal device as claimed in claim 1, it is characterized in that: also comprise the digital mixing module, described digital mixing module is used for converting digital baseband signal to digital medium-frequency signal, again through the DAC module, be converted to the GSM/CDMA wireless signal, perhaps, described digital mixing module converts digital baseband signal to for the digital medium-frequency signal that described ADC module converts is obtained.
3. many network datas compartment system proximal device as claimed in claim 2, it is characterized in that: also comprise mixting circuit, described mixting circuit is used for the intermediate-freuqncy signal of described digital mixing module output is converted to the GSM/CDMA wireless signal, perhaps, described mixting circuit is used for converting the GSM/CDMA wireless signal to intermediate-freuqncy signal, becomes digital medium-frequency signal by described ADC module converts again.
4. many network datas compartment system proximal device as claimed in claim 1, it is characterized in that: also comprise microcontroller, for generation of fsk modulated signal, described digital baseband signal is converted to digital optical signal, or described digital optical signal is converted to digital baseband signal.
5. many network datas compartment system proximal device as claimed in claim 1, it is characterized in that: also comprise clock module, described clock module provides stable clock signal for described G/C net signal receiving module, G/C net signal transmitting module, ADC module, DAC module and DSP module.
6. many network datas compartment system proximal device as claimed in claim 1, it is characterized in that: also comprise power module, described power module provides constant voltage dc source for described G/C net signal receiving module, G/C net signal transmitting module, ADC module, DAC module and DSP module.
7. many network datas compartment system proximal device as claimed in claim 4, it is characterized in that: also comprise monitoring module, described monitoring module is connected with described microcontroller, and when receiving the fault message that described microcontroller sends, described monitoring module produces alarm signal.
8. such as each described many network datas compartment system proximal device in the claim 1～7, it is characterized in that: also comprise 4G signal receiving module and 4G signal transmitting module, described 4G signal receiving module and described G/C net signal receiving module are arranged in parallel, and described 4G signal transmitting module and described G/C net signal transmitting module are arranged in parallel.
9. network data compartment system more than a kind, it is characterized in that: described many network datas compartment system comprises each described proximal device in the claim 1～8, also comprise relay extension equipment and user terminal, described proximal device is converted to digital optical signal with the GSM/CDMA wireless signal, and input in the described relay extension equipment, described relay extension equipment is with described digital optical signal and ethernet signal group bag, and by gigabit networking will organize the bag after complex data be sent to described user terminal, described user terminal is isolated GSM/CDMA wireless signal and ethernet signal from described complex data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379297 CN202799163U (en) | 2012-07-31 | 2012-07-31 | Multi-network digital distribution system and near-end equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379297 CN202799163U (en) | 2012-07-31 | 2012-07-31 | Multi-network digital distribution system and near-end equipment thereof |
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| CN202799163U true CN202799163U (en) | 2013-03-13 |
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| CN 201220379297 Expired - Fee Related CN202799163U (en) | 2012-07-31 | 2012-07-31 | Multi-network digital distribution system and near-end equipment thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647846A (en) * | 2013-12-23 | 2014-03-19 | 上海东洲罗顿通信股份有限公司 | Digital multipoint distribution system and transmission processing method thereof |
| CN104581752A (en) * | 2015-01-14 | 2015-04-29 | 苏州翰威信达信息技术有限公司 | Method for concentrated transmission of multi-band and multisystem wireless signals |
-
2012
- 2012-07-31 CN CN 201220379297 patent/CN202799163U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647846A (en) * | 2013-12-23 | 2014-03-19 | 上海东洲罗顿通信股份有限公司 | Digital multipoint distribution system and transmission processing method thereof |
| CN104581752A (en) * | 2015-01-14 | 2015-04-29 | 苏州翰威信达信息技术有限公司 | Method for concentrated transmission of multi-band and multisystem wireless signals |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150731 |
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| EXPY | Termination of patent right or utility model |