CN201937829U - Digital enclave coverage system - Google Patents
Digital enclave coverage system Download PDFInfo
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- CN201937829U CN201937829U CN2011200016124U CN201120001612U CN201937829U CN 201937829 U CN201937829 U CN 201937829U CN 2011200016124 U CN2011200016124 U CN 2011200016124U CN 201120001612 U CN201120001612 U CN 201120001612U CN 201937829 U CN201937829 U CN 201937829U
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Abstract
The utility model discloses a digital enclave coverage system which comprises a base station, a companding near-end machine and a companding far-end machine, wherein the base station is connected with the companding near-end machine by a coupler, the companding near-end machine is communicated with the companding far-end machine by a relay wireless signal, the companding near-end machine is coupled with a downlink signal from the base station, then the downlink signal is down-conversed into a downlink output intermediate frequency signal through digital frequency-selecting and filtering, and the downlink output intermediate frequency signal is transmitted to a far end module for inputting by a power amplifier, the intermediate-frequency signal is up-conversed into a downlink output signal to be transmitted to a terminal through the digital frequency-selecting and filtering again by the downlink of the companding far-end machine, the companding far-end machine receives an uplink signal transmitted by the terminal in the air, then the uplink signal is down-conversed into an uplink output intermediate-frequency signal through the digital frequency-selecting and filtering, then the uplink output intermediate frequency signal is transmitted to the companding near-end machine for uplink inputting by the power amplifier, and the intermediate-frequency signal is up-conversed into the uplink output signal for being transmitted to the base station through the digital frequency-selecting and filtering again by the companding near-end machine uplink. The coverage system is not influenced by the external environment easily, the wireless transmission path has small loss, and the signal is not stopped easily.
Description
Technical field
The utility model relates to a kind of covering system, particularly a kind of digital enclave covering system.
Background technology
The rural area radio mobile communication utilizes the on-air radio channel to come communication, because radio transmission is subjected to the influence of topography and geomorphology atural object bigger, and the quantity of base station and the place is set is subjected to certain restriction, therefore in mobile communication network, have many wireless coverages blind area or wireless signal interference range, cause the mobile subscriber can not access, call drop or speech quality is poor.Enclave companding system is that of network replenishes, in covering is under the outstanding situation of the primary problem that solves and capacity contradiction, enclave companding system can replace the base station and realize wireless coverage, but companding system telephone traffic in existing enclave is low, adopt primary frequency to transmit, be subject to the external environment influence, the radio propagation path loss is bigger, and signal is hindered easily.
Summary of the invention
The purpose of this utility model just is to provide a kind of being difficult for to be affected by the external environment, and the radio propagation path loss is less, and signal is difficult for the digital enclave covering system that quilt is hindered.
To achieve these goals, the technical solution adopted in the utility model is such: digital enclave of the present utility model covering system, comprise the base station, companding near-end machine and companding remote termination, the base station links to each other with companding near-end machine by coupler, companding near-end machine and companding remote termination adopt the relay wireless signal communication, described companding near-end machine comprises radio frequency duplex filtration module, digital frequency-selecting companding local module and intermediate frequency duplex filtration module, described base station is connected with radio frequency duplex filtration module by coupler, the output of radio frequency duplex filtration module is connected with the input of digital frequency-selecting companding local module, the output of digital frequency-selecting companding local module is connected by the input of up radio frequency power amplification modules with radio frequency duplex filtration module, the output of digital frequency-selecting companding local module also is connected by the input of descending intermediate frequency power amplifier module with intermediate frequency duplex filtration module, the output of intermediate frequency duplex filtration module connects in the input of digital frequency-selecting companding local module, also be connected with monitoring module and power module on the digital frequency-selecting companding local module, connect a relaying antenna on the intermediate frequency duplex filtration module; Described companding remote termination comprises intermediate frequency duplex filtration module, digital frequency-selecting companding remote end module and radio frequency duplex filtration module, connect a relaying antenna on the intermediate frequency duplex filtration module, the output of intermediate frequency duplex filtration module is connected with the input of digital frequency-selecting companding remote end module, the output of digital frequency-selecting companding remote end module is connected by the input of up intermediate frequency power amplifier module with intermediate frequency duplex filtration module, the output of digital frequency-selecting companding remote end module also is connected by the input of downlink radio frequency power amplifier module with radio frequency duplex filtration module, the output of radio frequency duplex filtration module connects in the input of digital frequency-selecting companding remote end module, also be connected with monitoring module and power module on the digital frequency-selecting companding local module, radio frequency duplex filtration module also connects a retransmitting antenna.
Compared with prior art, advantage of the present utility model is: system's diffracting power is strong, and loss is little, long transmission distance, save frequency resource availability of frequency spectrum height, distortion rate is low in the signals transmission, and antijamming capability is strong, avoided co-channel interference, but omnidirectional's covering, and coverage effect is good.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, digital enclave of the present utility model covering system, comprise the base station, companding near-end machine 1 and companding remote termination 2, the base station links to each other with companding near-end machine 1 by coupler, companding near-end machine 1 adopts the relay wireless signal communication with companding remote termination 2, described companding near-end machine 1 comprises radio frequency duplex filtration module, digital frequency-selecting companding local module and intermediate frequency duplex filtration module, described base station is connected with radio frequency duplex filtration module by coupler, the output of radio frequency duplex filtration module is connected with the input of digital frequency-selecting companding local module, the output of digital frequency-selecting companding local module is connected by the input of up radio frequency power amplification modules with radio frequency duplex filtration module, the output of digital frequency-selecting companding local module also is connected by the input of descending intermediate frequency power amplifier module with intermediate frequency duplex filtration module, the output of intermediate frequency duplex filtration module connects in the input of digital frequency-selecting companding local module, also be connected with monitoring module and power module on the digital frequency-selecting companding local module, connect a relaying antenna on the intermediate frequency duplex filtration module; Described companding remote termination 2 comprises intermediate frequency duplex filtration module, digital frequency-selecting companding remote end module and radio frequency duplex filtration module, connect a relaying antenna on the intermediate frequency duplex filtration module, the output of intermediate frequency duplex filtration module is connected with the input of digital frequency-selecting companding remote end module, the output of digital frequency-selecting companding remote end module is connected by the input of up intermediate frequency power amplifier module with intermediate frequency duplex filtration module, the output of digital frequency-selecting companding remote end module also is connected by the input of downlink radio frequency power amplifier module with radio frequency duplex filtration module, the output of radio frequency duplex filtration module connects in the input of digital frequency-selecting companding remote end module, also be connected with monitoring module and power module on the digital frequency-selecting companding local module, radio frequency duplex filtration module also connects a retransmitting antenna.
Companding near-end machine 1 is coupled downstream signal through digital frequency-selecting filtering from the base station, be downconverted into down the line output intermediate-freuqncy signal and be sent to the remote end module input through power amplifier, the companding remote termination is about to intermediate-freuqncy signal for 2 times once more through digital frequency-selecting filtering, be up-converted into descending output signal and be sent to terminal, the upward signal that companding remote termination 2 sends from aerial receiving terminal is through digital frequency-selecting filtering, be downconverted into the line output intermediate-freuqncy signal and be sent to the 1 up input of companding near-end machine through power amplifier, intermediate-freuqncy signal be about on the local module once more through digital frequency-selecting filtering, be up-converted into up output signal and be sent to the base station.
Claims (1)
1. digital enclave covering system, comprise the base station, companding near-end machine and companding remote termination, the base station links to each other with companding near-end machine by coupler, companding near-end machine and companding remote termination adopt the relay wireless signal communication, it is characterized in that: described companding near-end machine comprises radio frequency duplex filtration module, digital frequency-selecting companding local module and intermediate frequency duplex filtration module, described base station is connected with radio frequency duplex filtration module by coupler, the output of radio frequency duplex filtration module is connected with the input of digital frequency-selecting companding local module, the output of digital frequency-selecting companding local module is connected by the input of up radio frequency power amplification modules with radio frequency duplex filtration module, the output of digital frequency-selecting companding local module also is connected by the input of descending intermediate frequency power amplifier module with intermediate frequency duplex filtration module, the output of intermediate frequency duplex filtration module connects in the input of digital frequency-selecting companding local module, also be connected with monitoring module and power module on the digital frequency-selecting companding local module, connect a relaying antenna on the intermediate frequency duplex filtration module; Described companding remote termination comprises intermediate frequency duplex filtration module, digital frequency-selecting companding remote end module and radio frequency duplex filtration module, connect a relaying antenna on the intermediate frequency duplex filtration module, the output of intermediate frequency duplex filtration module is connected with the input of digital frequency-selecting companding remote end module, the output of digital frequency-selecting companding remote end module is connected by the input of up intermediate frequency power amplifier module with intermediate frequency duplex filtration module, the output of digital frequency-selecting companding remote end module also is connected by the input of downlink radio frequency power amplifier module with radio frequency duplex filtration module, the output of radio frequency duplex filtration module connects in the input of digital frequency-selecting companding remote end module, also be connected with monitoring module and power module on the digital frequency-selecting companding local module, radio frequency duplex filtration module also connects a retransmitting antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200016124U CN201937829U (en) | 2011-01-05 | 2011-01-05 | Digital enclave coverage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200016124U CN201937829U (en) | 2011-01-05 | 2011-01-05 | Digital enclave coverage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937829U true CN201937829U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200016124U Expired - Fee Related CN201937829U (en) | 2011-01-05 | 2011-01-05 | Digital enclave coverage system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201937829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104243060A (en) * | 2014-08-26 | 2014-12-24 | 朱今兰 | Forwarding device based on LTE and radio frequency detection method |
| WO2015184757A1 (en) * | 2014-06-06 | 2015-12-10 | 成都福兰特电子技术有限公司 | Ground apparatus for aeronautical telecommunication system |
-
2011
- 2011-01-05 CN CN2011200016124U patent/CN201937829U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184757A1 (en) * | 2014-06-06 | 2015-12-10 | 成都福兰特电子技术有限公司 | Ground apparatus for aeronautical telecommunication system |
| CN104243060A (en) * | 2014-08-26 | 2014-12-24 | 朱今兰 | Forwarding device based on LTE and radio frequency detection method |
| CN104243060B (en) * | 2014-08-26 | 2016-11-23 | 国网山东省电力公司烟台供电公司 | A kind of retransmission unit based on LTE and radio frequency detection method |
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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: 20110817 Termination date: 20140105 |