CN204290976U - A kind of simulation repeater - Google Patents

A kind of simulation repeater Download PDF

Info

Publication number
CN204290976U
CN204290976U CN201520010028.3U CN201520010028U CN204290976U CN 204290976 U CN204290976 U CN 204290976U CN 201520010028 U CN201520010028 U CN 201520010028U CN 204290976 U CN204290976 U CN 204290976U
Authority
CN
China
Prior art keywords
optical module
remote termination
end machine
signal
mixer
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.)
Active
Application number
CN201520010028.3U
Other languages
Chinese (zh)
Inventor
杨向晖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COMLAB (BEIJING) COMMUNICATION SYSTEM EQUIPMENT Co Ltd
COMLAB(北京)通信系统设备有限公司
Original Assignee
COMLAB (BEIJING) COMMUNICATION SYSTEM EQUIPMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by COMLAB (BEIJING) COMMUNICATION SYSTEM EQUIPMENT Co Ltd filed Critical COMLAB (BEIJING) COMMUNICATION SYSTEM EQUIPMENT Co Ltd
Priority to CN201520010028.3U priority Critical patent/CN204290976U/en
Application granted granted Critical
Publication of CN204290976U publication Critical patent/CN204290976U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a kind of simulation repeater, and this simulation repeater comprises remote termination and two obtain radiofrequency signal respectively near-end machine from different base station; Each described near-end machine has the primary optical module of near-end machine and near-end machine from optical module; Described remote termination has the primary optical module of remote termination and remote termination from optical module; The primary optical module of remote termination of described remote termination connects the primary optical module of near-end machine of a described near-end machine, the remote termination of described remote termination from the near-end machine of another near-end machine of light model calling from optical module.This simulation repeater can, normally for user provides communication signal, use more stable under the state of any one base station or near-end machine fault.

Description

A kind of simulation repeater
Technical field
The utility model belongs to Repeater Technology field, particularly relates to a kind of simulation repeater.
Background technology
Along with the development of China's mobile communication cause, covering and the optimization of wireless network show its importance day by day.Direct discharging station is the covering of wireless network and a part indispensable in optimizing.The covering of repeater generally has several form: outdoor repeater station, comprises wireless discharging-directly station, optical fiber repeater, frequency-shift repeater; Indoor repeater, also claims indoor distributed system, comprises radio frequency and optical fiber transmission technique.But in existing Repeater Technology, if breaking down in any remote termination of repeater, near-end machine or base station to affect the normal work of whole repeater, signal cover will change, and occurs signal blind zone, affects the normal use of people.
So, in existing repeater, break down once near-end machine or somewhere, base station and will affect the normal work of repeater, affect the normal use of people.
Utility model content
In view of this, an object of the present utility model proposes a kind of simulation repeater, to break down the problem causing repeater normally to work to solve the near-end machine of repeater in prior art or somewhere, base station.There is a basic understanding some aspects in order to the embodiment to disclosure, shown below is simple summary.This summarized section is not extensive overview, neither determine key/critical component or describe the protection range of these embodiments.Its sole purpose presents some concepts by simple form, in this, as the preamble of following detailed description.
In some optional embodiments, this simulation repeater comprises: remote termination and two obtain the near-end machine of radiofrequency signal respectively from different base station; Each described near-end machine has the primary optical module of near-end machine and near-end machine from optical module; Described remote termination has the primary optical module of remote termination and remote termination from optical module; The primary optical module of remote termination of described remote termination connects the primary optical module of near-end machine of a described near-end machine, the remote termination of described remote termination from the near-end machine of another near-end machine of light model calling from optical module.
In some optional embodiments, in this simulation repeater, the quantity of remote termination is at least two; Each remote termination has a primary optical module of remote termination and remote termination from optical module; Each near-end machine comprises the identical near-end machine optical module of many groups, often organizes near-end machine optical module and comprises a primary optical module of near-end machine and near-end machine from optical module; The remote termination primary optical module correspondence of each remote termination connects a primary optical module of near-end machine of a near-end machine, and the remote termination of this remote termination is from the near-end machine connecting another near-end machine by optical module correspondence from optical module; The primary optical module of remote termination and the primary optical module of near-end machine, remote termination from optical module and near-end machine from between optical module all for connecting one to one.
In some optional embodiments, in this simulation repeater, each remote termination also has a remote termination optical module for subsequent use; Often organize near-end machine optical module and also there is a near-end machine optical module for subsequent use; Remote termination optical module for subsequent use and a near-end machine optical module for subsequent use of each remote termination connect one to one; The primary optical module of remote termination of each remote termination is connected same near-end machine with remote termination optical module for subsequent use.
In some optional embodiments, in this simulation repeater, be connected by leakage cable or antenna between two adjacent described remote terminations.
In some optional embodiments, in this simulation repeater, each near-end machine also comprises: interconnective first duplexer and the first mixer; Described first mixer comprises the first transmitting combining unit and first and receives mixer; The primary optical module of each near-end machine, optical module for subsequent use and from optical module and the primary optical module of each remote termination, optical module for subsequent use with from optical module, there is signal input port and signal output port; The signal input port often organizing near-end machine optical module connects first and receives mixer, and the signal output port often organizing near-end machine optical module connects the first transmitting combining unit.
In some optional embodiments, in this simulation repeater, each remote termination also has interconnective second duplexer and the second mixer; Described second mixer comprises the second transmitting combining unit and second and receives mixer; The signal input port of each remote termination connects described second and receives mixer, and the signal output port of each remote termination connects described second transmitting combining unit.
In some optional embodiments, in this simulation repeater, each remote termination also has low noise amplifier and power amplifier; Second receives mixer is connected with the second duplexer by described low noise amplifier; Second transmitting combining unit is connected with the second duplexer by described power amplifier.
In some optional embodiments, this simulation repeater also comprises: at least two feeder lines and at least two couplers, each described near-end machine is connected with corresponding base station with coupler described at least one by least one described feeder line.
In some optional embodiments, the signal that in this simulation repeater, the primary optical module of remote termination of each remote termination and optical module for subsequent use receive is than its power height 5dB ~ 8dB from the signal received with optical module.
Compared with prior art, the beneficial effects of the utility model are:
The utility model provides a kind of simulation repeater, in this simulation repeater, multiple remote termination is set between two base stations, each remote termination adopt active and standby, receive the signal from two base stations respectively from three optical modules, and be connected by leakage cable or antenna between adjacent two base stations, like this, no matter in repeater, in remote termination, near-end machine, leakage cable or base station, any place breaks down, all can not affect the normal work of this repeater, greatly improve the operating efficiency of repeater, decrease frequency of maintenance simultaneously, use more secure.
In order to above-mentioned and relevant object, will describe in detail and the feature particularly pointed out in the claims after one or more embodiment comprises.Explanation below and accompanying drawing describe some illustrative aspects in detail, and its instruction is only some modes in the utilizable various mode of principle of each embodiment.Other benefit and novel features become obvious by considering by reference to the accompanying drawings along with detailed description below, and the disclosed embodiments will comprise all these aspects and theirs is equivalent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the simulation repeater of the utility model embodiment;
Fig. 2 is the structured flowchart of the simulation repeater of the utility model embodiment;
Fig. 3 is the structured flowchart of the near-end machine of the simulation repeater of the utility model embodiment;
Fig. 4 is the exemplary plot of simulation repeater under a base station fault of the utility model embodiment;
Fig. 5 is the exemplary plot of simulation repeater under a near-end machine fault of the utility model embodiment;
Fig. 6 is the exemplary plot of simulation repeater under a remote termination fault of the utility model embodiment;
Fig. 7 is the exemplary plot of simulation repeater under cable fault is leaked at a place of the utility model embodiment.
Embodiment
The following description and drawings illustrate specific embodiments of the present utility model fully, to enable those skilled in the art to put into practice them.Embodiment only represents possible change.Unless explicitly requested, otherwise independent parts and function are optional, and the order of operation can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The scope of embodiment of the present utility model comprises the gamut of claims, and all obtainable equivalent of claims.In this article, these embodiments of the present utility model can be represented with term " utility model " individually or always, this is only used to conveniently, and if in fact disclose the utility model more than, be not the scope that automatically will limit this application be any single utility model or utility model design.
Now in conjunction with the accompanying drawings, shown in Fig. 1 is the structure chart of simulating repeater in some optional embodiments; Shown in Fig. 2 is the structured flowchart of simulating repeater in some optional embodiments; Shown in Fig. 3 is the structured flowchart of the near-end machine of simulating repeater in some optional embodiments; Shown in Fig. 4 is simulate the exemplary plot of repeater under a base station fault in some optional embodiments; Shown in Fig. 5 is simulate the exemplary plot of repeater under a near-end machine fault in some optional embodiments; Shown in Fig. 6 is simulate the exemplary plot of repeater under a remote termination fault in some optional embodiments; Shown in Fig. 7 is simulate the exemplary plot of repeater under cable fault is leaked at a place in some optional embodiments.
As shown in Figures 1 to 3, in some optional embodiments, disclose a kind of simulation repeater, this simulation repeater comprises: the base station that base station 1 is different with 2 two, base station, obtain the near-end machine 3 of radiofrequency signal from base station 1 and obtain the near-end machine 4 of radiofrequency signal from base station 2, and the remote termination 5 be arranged between two near-end machines, remote termination 6, remote termination 7 and remote termination 8, the quantity of remote termination can arbitrarily be arranged as required, general setting between 1 ~ 16, each described near-end machine has the identical near-end machine optical module of many groups, wherein often organize described near-end machine optical module and comprise the primary optical module 11 of near-end machine, optical module 12 for subsequent use and from optical module 13 3 optical modules, each described remote termination has the primary optical module of remote termination 14, optical module for subsequent use 15 and from optical module 16 3 optical modules, the primary optical module of remote termination 14 of each described remote termination and optical module 15 for subsequent use are corresponding with a primary optical module of near-end machine 11 of one of them near-end machine and near-end machine optical module for subsequent use 12 to be respectively connected, and its remote termination is connected from optical module 13 from optical module 16 with one of them near-end machine of near-end machine described in another, the primary optical module of described remote termination and the primary optical module of near-end machine, remote termination optical module for subsequent use and near-end machine optical module for subsequent use and remote termination from optical module and near-end machine from between optical module all for connecting one to one.Be connected by leakage cable or antenna between two adjacent remote terminations.In repeater, adopt two near-end machines to be connected respectively to two different base stations, two signals sources can be obtained, when one of them base station or near-end machine break down, another base station or near-end machine can be adopted to work on; And in repeater, each remote termination obtains the signal of one of them base station by key light module and standby optical module, by obtaining the signal of another base station from optical module, and be connected by leakage cable or antenna between adjacent remote termination, so just can ensure any one remote termination of no matter repeater, near-end machine, base station or leak cable to break down this repeater can be made to continue normal work, user can receive signal, realizes normal communication.
In some optional embodiments, the primary optical module of each near-end machine 11 in this simulation repeater, optical module for subsequent use 12, from optical module 13 and the primary optical module of each remote termination 14, optical module for subsequent use 15, there is signal input port 17 and signal output port 18 from optical module 16.Wherein signal input port 17 is for receiving the received RF signal coming from user, and signal output port 18 comes from the emitting radio frequency signal of base station for receiving.Like this by the mutual communication that just can realize between base station and user between near-end machine and remote termination.
In some optional embodiments, in this simulation repeater, each near-end machine also has first duplexer 19; Described first duplexer 19 has the first bidirectional port, the first emission port 20 and the first receiving port 21; Described first bidirectional port is connected with base station, for carrying out the transmission of radiofrequency signal between base station; Described first emission port 20 is connected with the signal output port 18 of described near-end machine optical module; Described first receiving port 21 is connected with the signal input port 17 of described near-end machine optical module.In near-end machine, arrange duplexer to transmit what obtain from base station and isolate from the Received signal strength that antenna receives, and the wave band beyond communications band can be filtered, better can ensure the quality of communication.
In some optional embodiments, in this simulation repeater, each near-end machine also has at least one first mixer, each described first mixer comprises first transmitting combining unit 22 and one first reception mixer 23, for carrying out the mean allocation of power to signal, a road signal averaging is assigned as multiple signals; First emission port 20 of first duplexer 19 is connected with the input of described first transmitting combining unit 22, and its first receiving port 21 is connected with described first input receiving mixer 23; The output of the first transmitting combining unit 22 be connected with first duplexer 19 is connected with the signal output port 18 of described near-end machine optical module or the input of other the first transmitting combining unit 22; Be connected with first duplexer 19 first receives the output of mixer 23 is connected with the signal input port 17 of described near-end machine optical module or other the first input receiving mixer 23; The signal output port 18 often organizing described near-end machine optical module is connected with the output of first transmitting combining unit 22, and the signal input port 17 of this group near-end machine optical module is connected with one first output receiving mixer 23.In concrete implementation process, the quantity of the first transmitting combining unit 22 and the first reception mixer 23 is set according to the quantity of the near-end machine optical module arranged in near-end machine, such as, repeater in Fig. 2, wherein one group of near-end machine optical module is only set in each near-end machine, then only need in each near-end machine, arrange first transmitting combining unit and one first reception mixer, wherein, first transmitting combining unit and the primary optical module of near-end machine, optical module for subsequent use, be connected from the signal output port of optical module, first receives mixer and the primary optical module of this near-end machine, optical module for subsequent use, be connected from the signal input port of optical module.As the repeater in Fig. 3, eight groups of optical modules are provided with in each near-end machine, just needing, multiple first transmitting combining unit 22 and multiple first is set and receives mixer 23, if select the more mixer of port just can arrange several corresponding mixer less, if select the mixer that port is less, just need to arrange several corresponding mixer more, in a word, ensure the primary optical module of each near-end machine, optical module for subsequent use and from can receiving one with the signal output port 18 of optical module and receiving only the emitting radio frequency signal that comes from base station, the primary optical module of each near-end machine, optical module for subsequent use and from can receiving with the signal input port 17 of optical module and receiving only the received RF signal that comes from user side, the quantity of optical module in near-end machine just can be adjusted like this by the quantity of adjustment mixer, realize the effect of optical module expansion, thus drive multiple remote termination, make the communication of repeater more secure.
In some optional embodiments, in this simulation repeater, each remote termination also has the second duplexer 24, second transmitting combining unit 25 and the second reception mixer 26, in literary composition, the second transmitting combining unit 25 and the second reception mixer 26 is collectively referred to as the second mixer; Described second duplexer 24 has the second bidirectional port, the second emission port 27 and the second receiving port 28; The input of described second transmitting combining unit 25 is with the primary optical module of described remote termination 14, optical module for subsequent use 15, be connected from the signal output port 18 of optical module 16, and its output is connected with the second emission port 27 of described second duplexer 24; Described second receives the input of mixer 26 with the primary optical module of described remote termination 14, optical module for subsequent use 15, be connected from the signal input port 17 of optical module 16, and its output is connected with the second receiving port 28 of described second duplexer 24; Second bidirectional port of described second duplexer 24 connects other remote termination or signal antenna.
In some optional embodiments, in this simulation repeater, each remote termination also has low noise amplifier 29 and power amplifier 30; The input of described low noise amplifier 29 is connected with the second output receiving mixer 26, and its output is connected with the second receiving port 28 of the second duplexer 24; The input of described power amplifier 30 is connected with the output of the second transmitting combining unit 25, and its output is connected with the second emission port 27 of the second duplexer 24.
In some optional embodiments, this simulation repeater also comprises: at least two feeder lines and at least two couplers, each near-end machine is connected with corresponding base station with coupler described at least one by least one described feeder line.
In some optional embodiments, the signal that in this simulation repeater, the primary optical module of remote termination 14 of each remote termination and optical module for subsequent use 15 receive is than its power height 5dB ~ 8dB from the signal received with optical module 16.In concrete implementation process, by mixer, the radiofrequency signal from base station is divided into multiple signals, be sent to primary optical module respectively afterwards, optical module for subsequent use, from with optical module, wherein primary optical module, optical module for subsequent use, usually main path signal is called from the signal received with optical module, for road signal with from road signal, can by the power of attenuator reduction from road signal in concrete enforcement, the radiofrequency signal just received than primary optical module and optical module for subsequent use from the power of the radiofrequency signal received with optical module is like this high, when primary optical module and optical module simultaneous faults for subsequent use, equipment automatically will be reduced to and work on from optical module, do not affect the normal operation of equipment.And due to lower from the RF signal power received with optical module under primary optical module and all normal situation of optical module for subsequent use, equipment can not be selected to carry out communication from road signal, from the normal work that also can not affect equipment with optical module, so be can ensure that equipment better runs than main path signal with for the state that road signal is low usually by the power setting from road signal.And in concrete implementation process, such as, from the power of road signal 5dB ~ 8dB, 6dB lower than the power of main path signal and standby road signal usually.
Be further analyzed referring now to the advantage of Fig. 4 ~ 7 to above-mentioned simulation repeater:
As shown in Figure 4, when simulating certain base station 1 in repeater and breaking down, signal coverage areas 9 no signal of this base station 1, now, base station 2 is in normal condition, then the signal coverage areas 10 of base station 2 has signal, and user can utilize the signal coming from base station 2 to carry out communication.In like manner, when breaking down in base station 2, the signal coming from base station 1 can be utilized to carry out communication.
As shown in Figure 5, when simulating certain near-end machine 3 in repeater and breaking down, the signal of base station 1 cannot be transferred to remote termination, so signal coverage areas 9 no signal of base station 1, now, near-end machine 4 is in normal condition, can by the Signal transmissions of base station 2 to remote termination, then the signal coverage areas 10 of base station 2 has signal, and user can utilize the signal coming from base station 2 to carry out communication.In like manner, when near-end machine 4 breaks down, can utilize near-end machine 3 that the signal of base station 1 is sent to remote termination, user can utilize the signal coming from base station 1 to carry out communication.
As shown in Figure 6, when simulating certain remote termination 6 in repeater and breaking down, the signal that region near remote termination 6 can be launched by the remote termination 5 adjacent with remote termination 6 and remote termination 7 cover, the signal that user can utilize remote termination 5 or remote termination 7 to launch carries out communication, can not affect the use of user.In like manner, when other any one remote termination breaks down, user can utilize the signal coming from the remote termination that it closes on to carry out communication.
As shown in Figure 7, when simulating the leakage cable in repeater between certain two remote termination 6 and 7 and breaking down, the signal area at this fault place will cover by the signal from the remote termination 5 and 8 adjacent with remote termination 6 and 7, user just can utilize the signal of remote termination 5 or remote termination 8 to carry out communication, can not affect the use of user.In like manner, when other leakage cable breaks down, user also can utilize the signal of adjacent distal end machine to carry out communication.
Simulation repeater of the present utility model, each remote termination adopts primary optical module, optical module for subsequent use and from the radiofrequency signal received respectively with optical module from two different base stations, and be connected by leakage cable or antenna between adjacent two remote terminations, like this, no matter remote termination in repeater, near-end machine, leak any place in cable or base station to break down, all can not affect the normal work of repeater, simultaneously, optical module in near-end machine can be expanded by arranging multiple mixer, thus drive multiple remote termination to carry out work, the quorum sensing inhibitor that whole region is good can be ensured like this, use more secure.
In a word, the foregoing is only embodiment of the present utility model, be not intended to limit protection range of the present utility model, and for illustration of the utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (9)

1. simulate a repeater, it is characterized in that, comprising:
Remote termination and two obtain the near-end machine of radiofrequency signal respectively from different base station;
Each described near-end machine has the primary optical module of near-end machine and near-end machine from optical module;
Described remote termination has the primary optical module of remote termination and remote termination from optical module;
The primary optical module of remote termination of described remote termination connects the primary optical module of near-end machine of a described near-end machine, the remote termination of described remote termination from the near-end machine of another near-end machine of light model calling from optical module.
2. simulation repeater according to claim 1, is characterized in that, the quantity of described remote termination is at least two;
Each described remote termination has a primary optical module of remote termination and remote termination from optical module;
Each described near-end machine comprises the identical near-end machine optical module of many groups, often organizes near-end machine optical module and comprises a primary optical module of near-end machine and near-end machine from optical module;
The remote termination primary optical module correspondence of each described remote termination connects a primary optical module of near-end machine of a near-end machine, and the remote termination of this remote termination is from the near-end machine connecting another near-end machine by optical module correspondence from optical module;
The primary optical module of described remote termination and the primary optical module of near-end machine, remote termination from optical module and near-end machine from between optical module all for connecting one to one.
3. simulation repeater according to claim 2, is characterized in that, each described remote termination also has a remote termination optical module for subsequent use;
Often organize described near-end machine optical module and also there is a near-end machine optical module for subsequent use;
Remote termination optical module for subsequent use and a near-end machine optical module for subsequent use of each described remote termination connect one to one;
The primary optical module of remote termination of each described remote termination is connected same near-end machine with remote termination optical module for subsequent use.
4. simulation repeater according to claim 3, is characterized in that, is connected between two adjacent described remote terminations by leakage cable or antenna.
5. simulation repeater according to claim 4, is characterized in that, each described near-end machine also comprises: interconnective first duplexer and the first mixer;
Described first mixer comprises the first transmitting combining unit and first and receives mixer;
The primary optical module of each described near-end machine, optical module for subsequent use and from optical module and the primary optical module of each described remote termination, optical module for subsequent use with from optical module, there is signal input port and signal output port;
The signal input port often organizing near-end machine optical module connects first and receives mixer, and the signal output port often organizing near-end machine optical module connects the first transmitting combining unit.
6. simulation repeater according to claim 5, is characterized in that, each described remote termination also has interconnective second duplexer and the second mixer;
Described second mixer comprises the second transmitting combining unit and second and receives mixer;
The signal input port of each described remote termination connects described second and receives mixer, and the signal output port of each described remote termination connects described second transmitting combining unit.
7. simulation repeater according to claim 6, is characterized in that, each described remote termination also has low noise amplifier and power amplifier; Described second receives mixer is connected with described second duplexer by described low noise amplifier; Described second transmitting combining unit is connected with described second duplexer by described power amplifier.
8. the simulation repeater according to claim 1 to 7 any one, it is characterized in that, also comprise: at least two feeder lines and at least two couplers, each described near-end machine is connected with corresponding base station with coupler described at least one by least one described feeder line.
9. simulation repeater according to claim 8, is characterized in that, the signal that the primary optical module of remote termination of each described remote termination and optical module for subsequent use receive is than its power height 5dB ~ 8dB from the signal received with optical module.
CN201520010028.3U 2015-01-07 2015-01-07 A kind of simulation repeater Active CN204290976U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520010028.3U CN204290976U (en) 2015-01-07 2015-01-07 A kind of simulation repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520010028.3U CN204290976U (en) 2015-01-07 2015-01-07 A kind of simulation repeater

Publications (1)

Publication Number Publication Date
CN204290976U true CN204290976U (en) 2015-04-22

Family

ID=52874102

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520010028.3U Active CN204290976U (en) 2015-01-07 2015-01-07 A kind of simulation repeater

Country Status (1)

Country Link
CN (1) CN204290976U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104506238A (en) * 2015-01-07 2015-04-08 Comlab(北京)通信系统设备有限公司 Analog repeater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104506238A (en) * 2015-01-07 2015-04-08 Comlab(北京)通信系统设备有限公司 Analog repeater

Similar Documents

Publication Publication Date Title
CN209692750U (en) A kind of novel room 5G subsystem
CN206196066U (en) Signal transmission system of remote radio head module and applied this module
CN211352456U (en) Wireless room divides system based on repeater frequency shift technique
CN102833010A (en) Passive intermodulation improvement method for base station signals of mobile communication system
CN101321020A (en) Optical fiber distribution system used for multi-communication standard access and its control method
CN204290976U (en) A kind of simulation repeater
CN203340293U (en) Low-power multi-antenna tunnel distribution coverage system
CN202565269U (en) TD-LTE chamber branch MIMO frequency conversion system
CN101242628A (en) Wireless signal area coverage method and wireless access network
CN201556711U (en) Wideband smart antenna
CN101646267A (en) Novel repeater system
CN104506238A (en) Analog repeater
CN104936197A (en) Mobile communication micropower digital multipoint indoor coverage system
CN215935113U (en) Capacity type near-end machine device and frequency shift chamber subsystem
CN102204402B (en) Base station equipment and signal transmission method thereof
CN210297706U (en) Active fiber multiplier and system
CN201274479Y (en) Optical fiber repeater for TD-SCDMA mobile communication
CN212969930U (en) Novel extension coverage end and system of 5G indoor sub-base station
CN211769564U (en) Novel access unit of distributed elevator signal amplification system
CN204634050U (en) Light signal access type LTE quorum sensing inhibitor system
CN113225132A (en) 5G base station coupling zoom-out system
CN208939956U (en) Single cable MIMO signal transmitting device
CN103165967B (en) A kind of coupler and the common transport system based on repeater room subsystem
CN203327011U (en) BBU+RRU networking architecture
CN201450507U (en) One-dragged multi-fiber optic repeater with combined radio frequency combining branch and optical branch

Legal Events

Date Code Title Description
GR01 Patent grant