CN202059584U - Optimized digital enclave companding system - Google Patents
Optimized digital enclave companding system Download PDFInfo
- Publication number
- CN202059584U CN202059584U CN2011200037012U CN201120003701U CN202059584U CN 202059584 U CN202059584 U CN 202059584U CN 2011200037012 U CN2011200037012 U CN 2011200037012U CN 201120003701 U CN201120003701 U CN 201120003701U CN 202059584 U CN202059584 U CN 202059584U
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- CN
- China
- Prior art keywords
- digital enclave
- companding
- enclave companding
- digital
- end machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an optimized digital enclave companding system, comprising a base station, a digital enclave companding near end machine, a digital enclave companding distal end machine, also a coupling circuit and a modem. The modem is connected with the digital enclave companding system, the base station is connected with the digital enclave companding near end machine via the coupling circuit, the digital enclave companding near end machine is equipped with a near end link receiving antenna and a near end link transmitting antenna, and the digital enclave companding distal end machine is equipped with a distal end link receiving antenna and a distal end link transmitting antenna. The optimized digital enclave companding system of the utility model is simple in structure, is easy to implement, has better noise suppression capability, and by using the optimized digital enclave companding system, the problem that there are existed many mountain area signal blind zones at present can be solved effectively.
Description
Technical field
The utility model relates to a kind of mobile communication equipment, and the companding system is optimized on particularly a kind of digital enclave.
Background technology
Develop rapidly along with China's mobile communication cause, the mobile communication subscriber amount just constantly increases, so that cellular plans is more and more littler, base station location is more and more lower, especially in the rural area, the rural area radio mobile communication utilizes the on-air radio channel to carry out communication, because radio transmission is subjected to the influence of topography and geomorphology bigger, and the quantity of base station and lay the place and be subjected to certain restriction, therefore in mobile communication network, have many wireless coverages blind area or air interference district, cause the problem that the mobile subscriber can not insert, go offline or speech quality is low.The enclave system is that of network replenishes, and it can replace the base station and realize wireless coverage.But the enclave companding system that we adopted at present also can't better meet people's demand, existing enclave system and simulation frequency-shift and frequency-selective system class are seemingly, being multiplied of hardware selected just to mean in order to realize multichannel by existing enclave system, and the problem that causes consistency to be difficult to guarantee easily, relatively poor, the system noise sound pitch of its overlay area speech quality in addition, be difficult to simultaneously transfer analog signal to digital signal, cause the problem of network service inconvenience.
Summary of the invention
The purpose of this utility model just is to provide a kind of digital enclave to optimize the companding system, can address the above problem fully.
To achieve these goals, the technical solution adopted in the utility model is such: the companding system is optimized on a kind of digital enclave, comprise the base station, numeral enclave companding near-end machine, numeral enclave companding remote termination, also comprise coupling circuit and modulator-demodulator, modulator-demodulator links to each other with digital enclave companding system, the base station links to each other with digital enclave companding near-end machine by coupling circuit, described digital enclave companding near-end machine is provided with near-end link reception antenna and near-end link transmitting antenna, and described digital enclave companding remote termination is provided with far-end link reception antenna and far-end link transmitting antenna.
As preferably, the alms giver's link between described digital enclave companding near-end machine and the digital enclave companding remote termination is the 200MHZ frequency range.
Compared with prior art; advantage of the present utility model is: simple in structure, easy enforcement; in the companding system of digital enclave of the present utility model when being the digital enclave of direct type companding system by wired coupling circuit between base station and the digital enclave companding system near-end machine; between base station and digital enclave companding system near-end machine, be coupled as radio frequency type numeral enclave companding system by radiofrequency signal; the utlity model has higher noise inhibiting ability; have the filtration defencive function, can effectively solve the many problems of present mountain area signal blind zone.
Description of drawings
Fig. 1 is a digital enclave of the present utility model companding system principle diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, the companding system is optimized on a kind of digital enclave, comprise the base station, numeral enclave companding near-end machine, numeral enclave companding remote termination, also comprise coupling circuit and modulator-demodulator, modulator-demodulator links to each other with digital enclave companding system, the base station links to each other with digital enclave companding near-end machine by coupling circuit, described digital enclave companding near-end machine is provided with near-end link reception antenna and near-end link transmitting antenna, described digital enclave companding remote termination is provided with far-end link reception antenna and far-end link transmitting antenna, and the alms giver's link between described digital enclave companding near-end machine and the digital enclave companding remote termination is the 200MHZ frequency range.
Simple in structure, easy enforcement; in the companding system of digital enclave of the present utility model when being the digital enclave of direct type companding system by wired coupling circuit between base station and the digital enclave companding system near-end machine; between base station and digital enclave companding system near-end machine, be coupled as radio frequency type numeral enclave companding system by radiofrequency signal; the utlity model has higher noise inhibiting ability; have the filtration defencive function, can effectively solve the many problems of present mountain area signal blind zone.
Claims (2)
1. the companding system is optimized on a digital enclave, comprise base station, digital enclave companding near-end machine, digital enclave companding remote termination, it is characterized in that: also comprise coupling circuit and modulator-demodulator, modulator-demodulator links to each other with digital enclave companding system, the base station links to each other with digital enclave companding near-end machine by coupling circuit, described digital enclave companding near-end machine is provided with near-end link reception antenna and near-end link transmitting antenna, and described digital enclave companding remote termination is provided with far-end link reception antenna and far-end link transmitting antenna.
2. the companding system is optimized on a kind of digital enclave according to claim 1, and it is characterized in that: the alms giver's link between described digital enclave companding near-end machine and the digital enclave companding remote termination is the 200MHZ frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200037012U CN202059584U (en) | 2011-01-07 | 2011-01-07 | Optimized digital enclave companding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200037012U CN202059584U (en) | 2011-01-07 | 2011-01-07 | Optimized digital enclave companding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202059584U true CN202059584U (en) | 2011-11-30 |
Family
ID=45019546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200037012U Expired - Fee Related CN202059584U (en) | 2011-01-07 | 2011-01-07 | Optimized digital enclave companding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202059584U (en) |
-
2011
- 2011-01-07 CN CN2011200037012U patent/CN202059584U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20120107 |