CN107864002A - A kind of repeater remote termination - Google Patents
A kind of repeater remote termination Download PDFInfo
- Publication number
- CN107864002A CN107864002A CN201711385236.1A CN201711385236A CN107864002A CN 107864002 A CN107864002 A CN 107864002A CN 201711385236 A CN201711385236 A CN 201711385236A CN 107864002 A CN107864002 A CN 107864002A
- Authority
- CN
- China
- Prior art keywords
- unit
- transmitting
- remote termination
- frequency unit
- intermediate frequency
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of repeater remote termination, because the remote termination not only has the ability of relaying relay, the also ability with the network coverage.Therefore, the present invention is applied in direct discharging station, can zoom out distance and expansion network coverage by adding the quantity of remote termination to be lifted, and, to the adaptable of geographical environment, the requirement to bus station position is reduced, so as to reduce difficulty of construction and save cost input.
Description
Technical field
The present invention relates to the repeater in a kind of radio communication network, more particularly to a kind of repeater remote termination.
Background technology
Because the frequency that TD-LTE is used is higher, the diffracting power of signal is poor, causes substantial amounts of weak covering, blind area.In order to
Meet these weak covering, communication needs of blind area user, addressing difficulty be present using traditional repeater equipment, coverage has
Limit, and the problems such as investment is big, and return is low, and the construction period is long by the way of base station is built be present.
The content of the invention
It is an object of the invention to：A kind of repeater remote termination is provided, to solve TD-LTE weak covering, blind area be present
Problem.
In order to realize foregoing invention purpose, the invention provides following technical scheme：
A kind of repeater remote termination, it includes the first transmitting-receiving port, the second transmitting-receiving port and the 3rd transmitting-receiving port；Wherein,
Signal covering is completed in first transmitting-receiving port of the remote termination by being connected with retransmitting antenna, also, the distal end
Second transmitting-receiving port of machine carries out signal transmission with the second transmitting-receiving port of other remote terminations by relay antenna, described remote
3rd transmitting-receiving port of terminal carries out signal transmission with the 3rd transmitting-receiving port of other remote terminations by relay antenna.
According to a kind of specific embodiment, repeater remote termination of the invention includes the first cavity filtering being sequentially connected
Device, the first power amplifier LNA unit, the first transmitting-receiving letter radio frequency unit, the first digital intermediate frequency unit, and the second number being sequentially connected
Word intermediate frequency unit, the second transmitting-receiving letter radio frequency unit, the second power amplifier LNA unit, the second cavity body filter, and be sequentially connected
The 3rd digital intermediate frequency unit, the 3rd transmitting-receiving letter radio frequency unit, the 3rd power amplifier LNA unit, the 3rd cavity body filter；Wherein,
The first digital intermediate frequency unit is connected with the second digital intermediate frequency unit and the 3rd digital intermediate frequency unit respectively.
Further, repeater remote termination of the invention also include time slot synchronization unit, control unit, clock unit and
Communication unit；Wherein, control unit connects the first power amplifier LNA unit by bus respectively, radio frequency unit is believed in the first transmitting-receiving,
First digital intermediate frequency unit, the second digital intermediate frequency unit, the second transmitting-receiving letter radio frequency unit, the second power amplifier LNA unit, the 3rd
Digital intermediate frequency unit, the 3rd transmitting-receiving are believed radio frequency unit, the 3rd power amplifier LNA unit, time slot synchronization unit, clock unit and led to
Unit is interrogated, and is transmitted the operating state data of unit to external equipment by the communication unit, and by described
Communication unit receives the control data that external equipment is sent.
According to a kind of specific embodiment, in repeater remote termination of the invention, the relay antenna uses Yagi spark gap day
Line or helical antenna, the retransmitting antenna use plate antenna.
According to a kind of specific embodiment, in repeater remote termination of the invention, the second transmitting-receiving port and described
3rd transmitting-receiving port uses identical signal transmission frequencies.
According to a kind of specific embodiment, in repeater remote termination of the invention, the remote termination also includes lightning protection mould
Block.
Compared with prior art, beneficial effects of the present invention：
In repeater remote termination of the present invention, because remote termination not only has the ability of relaying relay, also with the network coverage
Ability.Therefore, the present invention is applied in direct discharging station, can zoom out distance and expansion by adding the quantity of remote termination to be lifted
Big network coverage, moreover, to the adaptable of geographical environment, the requirement to bus station position is reduced, is applied so as to reduce
Work difficulty and saving cost input.
Brief description of the drawings：
Fig. 1 is the structural representation that the present invention is used for direct discharging station；
Fig. 2 is the structural representation of the remote termination of the present invention.
Marked in figure：1- retransmitting antennas, 2- relay antennas.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood
Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized
The scope of invention.
The present invention with reference to shown in Fig. 1 is used for the structural representation of direct discharging station；Wherein, base station is distinguished by coupler
It is connected with a retransmitting antenna 1 and near-end machine, and the near-end machine is connected with a relay antenna 2, adjacent with the near-end machine is remote
Second transmitting-receiving port of terminal 1 is connected with a relay antenna 2, and the second transmitting-receiving port of remote termination 1 and the near-end machine are in
Signal transmission is carried out after antenna, the first transmitting-receiving port of remote termination 1 is connected to realize that signal covers, far with a retransmitting antenna 1
3rd transmitting-receiving port of terminal 1 is also connected with a relay antenna 2, and the 3rd sending and receiving end of the remote termination 2 adjacent with remote termination 1
Mouth is connected with a relay antenna 2, and the 3rd transmitting-receiving port of remote termination 1 is with the 3rd transmitting-receiving port of remote termination 2 by relaying day
Line carries out signal transmission, and the first transmitting-receiving port of remote termination 2 is connected with a retransmitting antenna 1 to realize that signal covers, and distal end
Second transmitting-receiving port of machine 2 is also connected with a relay antenna 2, and the second transmitting-receiving port of remote termination that can be adjacent thereto leads to
Cross relay antenna and carry out signal transmission.
Specifically, when the present invention is applied in direct discharging station, the signal in base station, near-end machine and remote termination is converted into
Lower frequency frequency range is to realize that the medium and long distance of signal is transmitted, to realize that partially remote signal of communication covers.Due to remote termination
With the ability for amplifying relaying signal and service signal simultaneously, service signal realizes the network coverage, relaying letter by plate antenna
Number by relay antenna pass to next stage remote termination be used for the network coverage and relaying amplify.Specifically operation principle is：
Down direction：Near-end machine couples the downlink radiofrequency signal of TD-LTE base stations by coupler, by numeral
Frequency is converted to relaying frequency range after handling, then by being sent to remote termination 1 by relay antenna after the amplification of High Linear high power, simultaneously
It is aided with digital pre-distortion technology and improves power amplification efficiency and signal quality.After the relay antenna of remote termination 1 receives the relaying signal
After low noise amplification, then by being respectively used to recover the network coverage after Digital IF Processing and relaying relay.Recover network
Covering be by the signal frequency conversion after Digital IF Processing to former network frequency range after the amplification of High Linear high power, then pass through tabular
Antenna is launched to user area.Relaying relay is that the signal frequency conversion after Digital IF Processing is high by High Linear to frequency range is relayed
Remote termination 2 is sent to by relay antenna after power amplification and is used for the network coverage and relaying relay, the like, it is possible to achieve it is more
The cascade network of platform remote termination, raising zoom out distance and realize the network coverage of multiple user areas.Down going channel is only descending
Time slot is opened by time slot synchronization unit, avoids disturbing the damage of the normal work and equipment itself of former network.
Up direction：Terminal launches upward signal in ascending time slot, and remote terminations at different levels pass through in plate antenna reception space
Terminal uplink signal, by the processing after low noise amplification by digital intermediate frequency, while receive next stage remote termination in
After the upward signal for the terminal that antenna is sent, the frequency range with upper level remote termination is converted to through too high after two signals are merged
Launched after linear high power amplification by relay antenna.Finally, near-end machine receives the remote of all cascades by relay antenna
All upward signals that terminal passes over, by being converted to former network frequency range after low noise amplification, then pass through coupler transmission
To base station.Data feedback channel is only opened in ascending time slot by time slot synchronization unit, is prevented from forming former network interference and is triggered itself
The failure of equipment.
The structural representation of remote termination of the present invention with reference to shown in Fig. 2；Wherein, remote termination includes the first chamber being sequentially connected
Fluid filter, the first power amplifier LNA unit, the first transmitting-receiving letter radio frequency unit, the first digital intermediate frequency unit, and be sequentially connected
Second digital intermediate frequency unit, the second transmitting-receiving letter radio frequency unit, the second power amplifier LNA unit, the second cavity body filter, Yi Jiyi
3rd digital intermediate frequency unit of secondary connection, the 3rd transmitting-receiving letter radio frequency unit, the 3rd power amplifier LNA unit, the filtering of the 3rd cavity
Device；Wherein, the first digital intermediate frequency unit respectively with the second digital intermediate frequency unit and the 3rd digital intermediate frequency unit
Connection.
Further, remote termination also includes time slot synchronization unit, control unit, clock unit and communication unit；Wherein, control
Unit processed connected respectively by bus the first power amplifier LNA unit, first transmitting-receiving letter radio frequency unit, the first digital intermediate frequency unit,
Second digital intermediate frequency unit, the second transmitting-receiving letter radio frequency unit, the second power amplifier LNA unit, the 3rd digital intermediate frequency unit, the 3rd
Transmitting-receiving letter radio frequency unit, the 3rd power amplifier LNA unit, time slot synchronization unit, clock unit and communication unit, and by described
The operating state data of unit is uploaded to external equipment by communication unit, and receives outside set by the communication unit
Standby control data.When implementing, external equipment is remote maintenance center, in direct discharging station structural representation as shown in Figure 1
In figure, near-end machine and every remote termination upload each respectively by the signal that its one's respective area covers and remote maintenance center to center communications
From operating state data to remote maintenance center, and receive the control data at remote maintenance center.
In conjunction with the structural representation of the remote termination shown in Fig. 2；Wherein, remote termination of the present invention also includes lightning-protection module, and
And lightning-protection module is direct current or exchange according to the input of power module, and correspondingly select DC lightning prevention device or communication lightning-protection
Device.
In the present invention, relay antenna uses yagi aerial or helical antenna, and the retransmitting antenna uses plate antenna.
Moreover, in chain type cascade TD-LTE frequency-shift repeater station systems of the present invention, the second transmitting-receiving port and the 3rd transmitting-receiving port
Using identical signal transmission frequencies, can also be configured by control unit and using the signal transmission frequencies differed.
Claims (6)
1. a kind of repeater remote termination, it is characterised in that the remote termination includes the first transmitting-receiving port, the second transmitting-receiving port and the
Three transmitting-receiving ports；Wherein,
Signal covering is completed in first transmitting-receiving port of the remote termination by being connected with retransmitting antenna, also, the remote termination
Second transmitting-receiving port and the second transmitting-receiving port of other remote terminations carry out signal transmission, the remote termination by relay antenna
The 3rd transmitting-receiving port of the 3rd transmitting-receiving port and other remote terminations pass through relay antenna and carry out signal transmission.
2. repeater remote termination as claimed in claim 1, it is characterised in that the remote termination includes the first chamber being sequentially connected
Fluid filter, the first power amplifier LNA unit, the first transmitting-receiving letter radio frequency unit, the first digital intermediate frequency unit, and be sequentially connected
Second digital intermediate frequency unit, the second transmitting-receiving letter radio frequency unit, the second power amplifier LNA unit, the second cavity body filter, Yi Jiyi
3rd digital intermediate frequency unit of secondary connection, the 3rd transmitting-receiving letter radio frequency unit, the 3rd power amplifier LNA unit, the filtering of the 3rd cavity
Device；Wherein, the first digital intermediate frequency unit respectively with the second digital intermediate frequency unit and the 3rd digital intermediate frequency unit
Connection.
3. repeater remote termination as claimed in claim 4, it is characterised in that the remote termination also include time slot synchronization unit,
Control unit, clock unit and communication unit；Wherein, control unit connected respectively by bus the first power amplifier LNA unit,
First transmitting-receiving letter radio frequency unit, the first digital intermediate frequency unit, the second digital intermediate frequency unit, the second transmitting-receiving letter radio frequency unit, second
Power amplifier LNA unit, the 3rd digital intermediate frequency unit, the 3rd transmitting-receiving letter radio frequency unit, the 3rd power amplifier LNA unit, time slot are same
Unit, clock unit and communication unit are walked, and is transmitted the operating state data of unit to outer by the communication unit
Portion's equipment, and the control data sent by communication unit reception external equipment.
4. repeater remote termination as claimed in claim 1, it is characterised in that the relay antenna uses yagi aerial or spiral shell
Antenna is revolved, the retransmitting antenna uses plate antenna.
5. repeater remote termination as claimed in claim 1, it is characterised in that the second transmitting-receiving port and the 3rd transmitting-receiving
Port uses identical signal transmission frequencies.
6. repeater remote termination as claimed in claim 1, it is characterised in that the remote termination also includes lightning-protection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385236.1A CN107864002A (en) | 2017-12-20 | 2017-12-20 | A kind of repeater remote termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385236.1A CN107864002A (en) | 2017-12-20 | 2017-12-20 | A kind of repeater remote termination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107864002A true CN107864002A (en) | 2018-03-30 |
Family
ID=61706684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711385236.1A Pending CN107864002A (en) | 2017-12-20 | 2017-12-20 | A kind of repeater remote termination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107864002A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381594A (en) * | 2019-08-06 | 2019-10-25 | 京信通信系统（中国）有限公司 | Data transmission method for uplink, device, computer equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002218276A (en) * | 2001-01-17 | 2002-08-02 | Matsushita Electric Ind Co Ltd | Video relay transmission system |
| JP2004229242A (en) * | 2003-01-27 | 2004-08-12 | Mitsubishi Electric Corp | Repeating apparatus and repeating method |
| US7397812B2 (en) * | 2004-08-31 | 2008-07-08 | General Motors Corporation | System and method for wireless broadcast of multimedia files to vehicles |
| CN102036257A (en) * | 2010-12-30 | 2011-04-27 | 芯通科技（成都）有限公司 | Digital frequency shift companding system |
| CN202168087U (en) * | 2011-07-05 | 2012-03-14 | 京信通信系统（中国）有限公司 | Analog optical fiber repeater system in support of structure of daisy chain network |
| CN103297990A (en) * | 2013-06-29 | 2013-09-11 | 张波 | 4G digital enclave system |
-
2017
- 2017-12-20 CN CN201711385236.1A patent/CN107864002A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002218276A (en) * | 2001-01-17 | 2002-08-02 | Matsushita Electric Ind Co Ltd | Video relay transmission system |
| JP2004229242A (en) * | 2003-01-27 | 2004-08-12 | Mitsubishi Electric Corp | Repeating apparatus and repeating method |
| US7397812B2 (en) * | 2004-08-31 | 2008-07-08 | General Motors Corporation | System and method for wireless broadcast of multimedia files to vehicles |
| CN102036257A (en) * | 2010-12-30 | 2011-04-27 | 芯通科技（成都）有限公司 | Digital frequency shift companding system |
| CN202168087U (en) * | 2011-07-05 | 2012-03-14 | 京信通信系统（中国）有限公司 | Analog optical fiber repeater system in support of structure of daisy chain network |
| CN103297990A (en) * | 2013-06-29 | 2013-09-11 | 张波 | 4G digital enclave system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381594A (en) * | 2019-08-06 | 2019-10-25 | 京信通信系统（中国）有限公司 | Data transmission method for uplink, device, computer equipment and storage medium |
| CN110381594B (en) * | 2019-08-06 | 2021-09-03 | 京信网络系统股份有限公司 | Data transmission method, data transmission device, computer equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100375550C (en) | Base station system | |
| CN105471490B (en) | Repeater and signal processing method thereof | |
| CN101304279B (en) | Radio frequency extension apparatus and base station system | |
| CN102006683B (en) | Digital radio-frequency remote system applied to double-communication system | |
| CN103117909A (en) | Multi-system digital optical fiber category 5 cable distribution system | |
| CN102377027A (en) | Active antenna and method for calibrating active antenna | |
| CN107026660B (en) | Communication relay device, communication relay system, and method | |
| CN104065413A (en) | Digital multi-medium transmission to-the-home covering system | |
| CN111726138B (en) | Radio frequency circuit and electronic device | |
| CN204244477U (en) | A kind of in-door covering strengthens system and equipment | |
| CN101980580A (en) | Base station, remote radio unit and signal sending method thereof | |
| CN108023634A (en) | A kind of chain type cascades TD-LTE frequency-shift repeater station systems | |
| CN102035589B (en) | Base station, far-end radio frequency unit and signal sending method thereof | |
| CN104320790A (en) | TDD (Time Division Duplex)-LTE (Long Term Evolution) multiple-input-multiple-output indoor coverage system | |
| CN107864002A (en) | A kind of repeater remote termination | |
| CN103220687A (en) | Multi-standard type category 5 cable home-entry covering system | |
| CN105246092A (en) | Indoor coverage signal enhancing device and signal processing method thereof | |
| CN107493580A (en) | A kind of LTE digital two-channels fiber optic stretch multimedium is registered one's residence covering system | |
| CN201550113U (en) | Digital microwave frequency shift repeater station | |
| KR100799679B1 (en) | Microwave repeater using frequency division duplexing and time division duplexing method | |
| CN214228247U (en) | Wireless communication same-frequency forwarding system | |
| CN201821503U (en) | Code division multiple access (CDMA) 2000 category-V-cable communication device based on category-V-cable transmission | |
| CN105264789A (en) | Backhaul device and backhaul device control method | |
| CN204886973U (en) | 400MHz railway heibei provincial opera digital fiber repeater remote termination | |
| CN2927565Y (en) | Subsystem of base station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180330 |
|
| RJ01 | Rejection of invention patent application after publication |