CN204350319U - A kind of LTE digital optical-fiber remote system - Google Patents
A kind of LTE digital optical-fiber remote system Download PDFInfo
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- CN204350319U CN204350319U CN201420795641.6U CN201420795641U CN204350319U CN 204350319 U CN204350319 U CN 204350319U CN 201420795641 U CN201420795641 U CN 201420795641U CN 204350319 U CN204350319 U CN 204350319U
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Abstract
The utility model relates to a kind of LTE digital optical-fiber remote system, comprises near-end machine, expanding element, remote termination; Near-end machine is connected with Remote Radio Unit, incoming radio frequency signal; Near-end machine is connected with expanding element or remote termination by optical fiber, and expanding element is connected with expanding element or remote termination by optical fiber; Expanding element comprises remote power feeding module, and remote power feeding module is that remote termination is powered.LTE digital optical-fiber remote system described in the utility model, is undertaken LTE base station signal being coupled at same near-end machine, is sent to far-end by single fiber, then amplifies through remote radio unit (RRU), realizes base station signal and zooms out covering.Cost is low, energy consumption is little, networking is convenient, maintenance upgrade is convenient, reduces investment and difficulty of construction, realizes LTE quorum sensing inhibitor.
Description
Technical field
The utility model relates to digital optical-fiber remote system field, and more particularly, relate to a kind of LTE digital optical-fiber remote system, what can realize LTE signal zooms out covering.
Background technology
LTE system is thought accurate 4G wireless communication system widely, and it has the transmission rate of the up 50M of descending 100M.The 4G development of infrastructure network of current Ge great operator tentatively completes, and future will face the problem of the network optimization.
Repeater, as a kind of main network optimization equipment, is widely adopted.And along with the development of technology and the raising of network technology requirement, high performance digital high-frequency amplification station also progressively replaces original simulation repeater.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of LTE base station signal is carried out being coupled at same near-end machine, be sent to far-end by single fiber, then amplify through remote radio unit (RRU), realize the LTE digital optical-fiber remote system that base station signal zooms out covering.
The technical solution of the utility model is as follows:
A kind of LTE digital optical-fiber remote system, comprises near-end machine, expanding element, remote termination; Near-end machine is connected with Remote Radio Unit, incoming radio frequency signal; Near-end machine is connected with expanding element or remote termination by optical fiber, and expanding element is connected with expanding element or remote termination by optical fiber; Expanding element comprises remote power feeding module, and remote power feeding module is that remote termination is powered.
As preferably, near-end machine comprises near-end digital signal processing module, near-end monitoring module, proximal fiber transceiver module, near-end receiver module, near-end transmitter module, receives coupler, launches coupler; Receive coupler to be connected with near-end receiver module, near-end receiver module is connected with near-end digital signal processing module, and near-end digital signal processing module is also connected with proximal fiber transceiver module, near-end monitoring module, near-end transmitter module; Near-end transmitter module is connected with transmitting coupler.
As preferably, expanding element comprises expansion of digital signal processing module, expansion optical fiber receiver-transmitter module, expanding monitoring module, remote power feeding module; Expansion optical fiber receiver-transmitter module is connected with expansion of digital signal processing module, expansion of digital signal processing module and expanding monitoring model calling; Remote power feeding module is connected with remote termination.
As preferably, remote termination comprises remote digital signal processing module, remote monitoring module, distal fiber transceiver module, far-end receiver module, far-end transmitter module; Far-end receiver module is connected with remote digital signal processing module, and remote digital signal processing module is also connected with distal fiber transceiver module, remote monitoring module, far-end transmitter module.
As preferably, the networking structure of near-end machine, expanding element, remote termination is daisy chain, star-like, ring-like or mixed networking mode.
As preferably, near-end machine, expanding element, remote termination are by intelligent acess optical fiber distribution system.
As preferably, 1 near-end machine connects at most 4 expanding elements, and 1 expanding element connects at most 10 remote terminations, supports 6 grades of equipment cascadings or expansion at most.
As preferably, connect 256 remote terminations at most.
The beneficial effects of the utility model are as follows:
LTE digital optical-fiber remote system described in the utility model, is undertaken LTE base station signal being coupled at same near-end machine, is sent to far-end by single fiber, then amplifies through remote radio unit (RRU), realizes base station signal and zooms out covering.Cost is low, energy consumption is little, networking is convenient, maintenance upgrade is convenient, reduces investment and difficulty of construction, realizes LTE quorum sensing inhibitor.
Accompanying drawing explanation
Fig. 1 is the system topology figure of the utility model embodiment;
Fig. 2 is near-end machine system block diagram of the present utility model;
Fig. 3 is remote termination system block diagram of the present utility model;
Fig. 4 is expanding element system block diagram of the present utility model;
Fig. 5 is that signal of the present utility model forwards and converges schematic diagram;
In figure: 10 is near-end machines, 101 is near-end digital signal processing modules, 102 is near-end monitoring modules, 103 is proximal fiber transceiver modules, 104 is near-end receiver modules, 105 is near-end transmitter modules, 106 is receive coupler, 107 is launch coupler, 20 is remote terminations, 201 is remote digital signal processing modules, 202 is remote monitoring modules, 203 is distal fiber transceiver modules, 204 is far-end receiver modules, 205 is far-end transmitter modules, 30 is expanding elements, 301 is expansion of digital signal processing modules, 302 is expansion optical fiber receiver-transmitter modules, 303 is expanding monitoring modules, 304 is remote power feeding modules.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment
As described in Figure 1, LTE digital optical-fiber remote system described in the utility model comprises: near-end machine 10, several expanding elements 30, several remote terminations 20.Near-end machine 10 is connected with radio frequency remote unit RRU, incoming radio frequency signal; Near-end machine 10 is connected with expanding element 30 or remote termination 20 by optical fiber, and expanding element 30 is connected with expanding element 30 or remote termination 20 by optical fiber; Expanding element 30 comprises remote power feeding module 304, and remote power feeding module 304 supplies for remote termination 20.
LTE digital optical-fiber remote system is divided into two passages, down going channel and data feedback channels.In descending process, the signal of RRU enters near-end machine 10 and carries out Digital Signal Processing, expanding element 30 or remote termination 20 is sent to through optical fiber, the signal received forwards by expanding element 30, be sent to each remote termination 20 be connected with expanding element 30 again by optical fiber, the signal received to carry out after Digital Signal Processing through antenna transmission to overlay area by remote termination 20.In up process, antenna reception aerial signal enters remote termination 20 and carries out Digital Signal Processing, through Optical Fiber Transmission to expanding element 30 or near-end machine 10, after the signal received converges by expanding element 30, return near-end machine 10 through Optical Fiber Transmission, near-end machine 10 sends it back base station after carrying out Digital Signal Processing to the received signal.
The effect of described near-end machine 10 is, carries out Digital Signal Processing in down link to the two-way radiofrequency signal of RRU, and by optical fiber by Signal transmissions to expanding element 30 or remote termination 20; RRU is sent it back after the signal that expanding element 30 or remote termination 20 transmit being carried out signal transacting in up link.
The effect of described expanding element 30 is, forwards the signal of access arrangement and converges, and provides power supply for remote termination 20.
The effect of described remote termination 20 is, in down link, the downstream signal received is carried out Digital Signal Processing and is sent in the air; Expanding element 30 or near-end machine 10 is sent to by optical fiber after signal air interface received in up link carries out signal transacting.
Signal downlink transmitting procedure: TD-LTE two-way radiofrequency signal is sent to near-end machine 10 through RRU, is transmitted through the fiber to expanding element 30 after near-end machine 10 carries out Digital Signal Processing; Expanding element 30 proximally machine 10 of inciting somebody to action receives signal and is forwarded to all light mouths of expanding element 30, through Optical Fiber Transmission to the remote termination 20 be connected with expanding element 30 or other expanding elements 30; Remote termination 20 receives the laggard row Digital Signal Processing of downstream signal, and signal is emitted to aerial after power amplifier module amplifies.
Signal uplink transmitting procedure: after remote termination 20 receives aerial signal, returns expanding element 30 by Optical Fiber Transmission after Digital Signal Processing; After the upward signal received converges by expanding element 30 through Optical Fiber Transmission to near-end machine 10; Near-end machine 10 receives after upward signal carries out Digital Signal Processing, sends it back RRU through digital-to-analogue conversion.
As shown in Figure 2, near-end machine 10 comprises: near-end digital signal processing module 101, near-end monitoring module 102, proximal fiber transceiver module 103, near-end receiver module 104, near-end transmitter module 105, reception coupler 106, transmitting coupler 107.Receive coupler 106 to be connected with near-end receiver module 104, near-end receiver module 104 is connected with near-end digital signal processing module 101, and near-end digital signal processing module 101 is also connected with proximal fiber transceiver module 103, near-end monitoring module 102, near-end transmitter module 105; Near-end transmitter module 105 is connected with transmitting coupler 107.
Near-end machine 10 operation principle is: in descending process, near-end machine 10 enters near-end receiver module 104 through receiving after coupler 106 receives base station signal, carry out mixing and filtering process, and by entering near-end digital signal processing module 101 after analog-to-digital conversion, carry out the process such as slot synchronization, carrier synchronization, automatic frequency detection and power detection, after framing processing is carried out to the signal after process, be sent to expanding element 30 or remote termination 20 by proximal fiber transceiver module 103.In up process, after proximal fiber transceiver module 103 receives the signal of expanding element 30 or remote termination 20, after near-end digital signal processing module 101 processes, then by near-end transmitter module 105, after carrying out digital-to-analogue conversion, mixing and filtering, then launch go back to base station through launching coupler 107.Near-end monitoring module 102 pairs of near-end machines 10 are monitored, and comprise the function such as power detection, power control, optical fiber information monitoring, remote system upgrade.
Mixing and filtering, analog-to-digital conversion that above-mentioned near-end receiver module 104 carries out, the digital-to-analogue conversion that near-end transmitter module 105 carries out, mixing and filtering all realize by hardware circuit, also can be realized by the software approach of prior art.The process such as the detection of the slot synchronization that near-end digital signal processing module 101 carries out, carrier synchronization, automatic frequency and power detection, and the function such as power detection, power control, optical fiber information monitoring, remote system upgrade that near-end monitoring module 102 carries out, be all realized by the software approach of prior art.Therefore, the utility model still belongs to the authorized object of utility model.
As shown in Figure 3, remote termination 20 comprises: remote digital signal processing module 201, remote monitoring module 202, distal fiber transceiver module 203, far-end receiver module 204, far-end transmitter module 205; Far-end receiver module 204 is connected with remote digital signal processing module 201, and remote digital signal processing module 201 is also connected with distal fiber transceiver module 203, remote monitoring module 202, far-end transmitter module 205.
Remote termination 20 operation principle is: in descending process, after distal fiber transceiver module 203 receives the signal of expanding element 30 or near-end machine 10, after remote digital signal processing module 201 processes, again by far-end transmitter module 205, after carrying out digital-to-analogue conversion, mixing and filtering, then through antenna transmission to overlay area.In up process, remote termination 20 enters far-end receiver module 204 after antenna receives aerial signal, carry out mixing and filtering process, and process by entering remote digital signal processing module 201 after analog-to-digital conversion, be sent to expanding element 30 or near-end machine 10 by distal fiber transceiver module 203 after framing processing is carried out to the signal after process.Remote monitoring module 202 pairs of remote terminations 20 are monitored, and comprise the function such as power detection, power control, optical fiber information monitoring, remote system upgrade.
Mixing and filtering, analog-to-digital conversion that above-mentioned far-end receiver module 204 carries out, the digital-to-analogue conversion that far-end transmitter module 205 carries out, mixing and filtering all realize by hardware circuit, also can be realized by the software approach of prior art.Slot synchronization, carrier synchronization, automatic frequency that remote digital signal processing module 201 is carried out detect and the process such as power detection, and the function such as power detection, power control, optical fiber information monitoring, remote system upgrade that remote monitoring module 202 is carried out, be all realized by the software approach of prior art.Therefore, the utility model still belongs to the authorized object of utility model.
As shown in Figure 4, expanding element 30 comprises expansion of digital signal processing module 301, expansion optical fiber receiver-transmitter module 302, expanding monitoring module 303, remote power feeding module 304; Expansion optical fiber receiver-transmitter module 302 is connected with expansion of digital signal processing module 301, and expansion of digital signal processing module 301 is connected with expanding monitoring module 303; Remote power feeding module 304 is connected with remote termination 20.
Expanding element 30 operation principle is: in descending process, after expansion optical fiber receiver-transmitter module 302 receives near-end machine 10 signal, after expansion of digital signal processing module 301 carries out signal forwarding, then be forwarded to by expansion optical fiber receiver-transmitter module 302 other expanding elements 30 be connected with this expanding element 30.In up process, after expanding element 30 receives upward signal from expansion optical fiber receiver-transmitter module 302, after expansion of digital signal processing module 301 carries out signal gathering, be sent to near-end machine 10 by expansion optical fiber receiver-transmitter module 302.Expanding monitoring module 303 pairs of expanding elements 30 are monitored, and comprise the functions such as optical fiber information monitoring, remote system upgrade.Remote power feeding module 304 is to the remote termination 20 be connected with this expanding element 30, and the form adopting AC/DC or DC/DC to power carries out remote power feeding.
As shown in Figure 5, described signal forwards and converges operation principle: in descending process, expanding element 30 receives the signal that near-end machine 10 sends, original signal is transmitted to the remote termination 20 that each is connected with expanding element 30, the signal that namely every platform remote termination 20 receives is all be consistent with the signal that expanding element 30 receives.In up process, the signal that the every platform remote termination 20 received by expanding element 30 sends carry out cumulative after send it back near-end machine 10, the signal that namely near-end machine 10 receives is the superposition of the signal that all remote terminations 20 receive.
The signal that above-mentioned expansion of digital signal processing module 301 is carried out forwards and converges, and the function such as optical fiber information monitoring, remote system upgrade that expanding monitoring module 303 is carried out, and is all realized by the software approach of prior art.Therefore, the utility model still belongs to the authorized object of utility model.
Near-end machine 10, expanding element 30, remote termination 20 are by intelligent acess optical fiber distribution system.Telecommunication and system software upgrading function, by optical fiber distribution system, carry out the communication between near-end machine 10 and expanding element 30 or remote termination 20 and system software upgrading, facilitate system management.
Networking capability of the present utility model is: 1 near-end machine 10 connects at most 4 expanding elements, 30,1 expanding element 30 and connects 10 remote terminations 20 at most, supports 6 grades of equipment cascadings or expansion at most.The utility model can connect at most 256 remote terminations 20.
Above-described embodiment is only used to the utility model is described, and is not used as restriction of the present utility model.As long as according to technical spirit of the present utility model, change above-described embodiment, modification etc. all will be dropped in the scope of claim of the present utility model.
Claims (8)
1. a LTE digital optical-fiber remote system, is characterized in that, comprises near-end machine, expanding element, remote termination; Near-end machine is connected with Remote Radio Unit, incoming radio frequency signal; Near-end machine is connected with expanding element or remote termination by optical fiber, and expanding element is connected with expanding element or remote termination by optical fiber; Expanding element comprises remote power feeding module, and remote power feeding module is that remote termination is powered.
2. LTE digital optical-fiber remote system according to claim 1, it is characterized in that, near-end machine comprises near-end digital signal processing module, near-end monitoring module, proximal fiber transceiver module, near-end receiver module, near-end transmitter module, receives coupler, launches coupler; Receive coupler to be connected with near-end receiver module, near-end receiver module is connected with near-end digital signal processing module, and near-end digital signal processing module is also connected with proximal fiber transceiver module, near-end monitoring module, near-end transmitter module; Near-end transmitter module is connected with transmitting coupler.
3. LTE digital optical-fiber remote system according to claim 1, is characterized in that, expanding element comprises expansion of digital signal processing module, expansion optical fiber receiver-transmitter module, expanding monitoring module, remote power feeding module; Expansion optical fiber receiver-transmitter module is connected with expansion of digital signal processing module, expansion of digital signal processing module and expanding monitoring model calling; Remote power feeding module is connected with remote termination.
4. LTE digital optical-fiber remote system according to claim 1, is characterized in that, remote termination comprises remote digital signal processing module, remote monitoring module, distal fiber transceiver module, far-end receiver module, far-end transmitter module; Far-end receiver module is connected with remote digital signal processing module, and remote digital signal processing module is also connected with distal fiber transceiver module, remote monitoring module, far-end transmitter module.
5. the LTE digital optical-fiber remote system according to any one of Claims 1-4, is characterized in that, the networking structure of near-end machine, expanding element, remote termination is daisy chain, star-like, ring-like or mixed networking mode.
6. the LTE digital optical-fiber remote system according to any one of Claims 1-4, is characterized in that, near-end machine, expanding element, remote termination are by intelligent acess optical fiber distribution system.
7. LTE digital optical-fiber remote system according to claim 1, is characterized in that, 1 near-end machine connects at most 4 expanding elements, and 1 expanding element connects at most 10 remote terminations, supports 6 grades of equipment cascadings or expansion at most.
8. LTE digital optical-fiber remote system according to claim 7, is characterized in that, connects 256 remote terminations at most.
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| CN201420795641.6U CN204350319U (en) | 2014-12-15 | 2014-12-15 | A kind of LTE digital optical-fiber remote system |
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| CN201420795641.6U CN204350319U (en) | 2014-12-15 | 2014-12-15 | A kind of LTE digital optical-fiber remote system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108738033A (en) * | 2018-06-26 | 2018-11-02 | 河南京科科技有限公司 | A kind of indoor covering system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108738033A (en) * | 2018-06-26 | 2018-11-02 | 河南京科科技有限公司 | A kind of indoor covering system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361006, Xiamen Software Park, Fujian Province, two expect No. 57, Lane 601 Patentee after: Xiamen teletom information technology Limited by Share Ltd Address before: 361006, Xiamen Software Park, Fujian Province, two expect No. 57, Lane 601 Patentee before: Ximen Teletom Science and Technology Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LTE digital optical fiber remote system Effective date of registration: 20190325 Granted publication date: 20150520 Pledgee: Xiamen finance Company limited by guarantee Pledgor: Xiamen teletom information technology Limited by Share Ltd Registration number: 2019990000256 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201021 Granted publication date: 20150520 Pledgee: Xiamen finance Company limited by guarantee Pledgor: XIAMEN TELETOM INFORMATION TECHNOLOGY Co.,Ltd. Registration number: 2019990000256 |