CN106550371A - A kind of multiple source cut-in method and system - Google Patents

A kind of multiple source cut-in method and system Download PDF

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Publication number
CN106550371A
CN106550371A CN201510611941.3A CN201510611941A CN106550371A CN 106550371 A CN106550371 A CN 106550371A CN 201510611941 A CN201510611941 A CN 201510611941A CN 106550371 A CN106550371 A CN 106550371A
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China
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information source
signal
external information
digital
optical signal
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CN201510611941.3A
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Chinese (zh)
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林洁
陈豪
付灿
李雪林
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ZTE Corp
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ZTE Corp
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Priority to CN201510611941.3A priority Critical patent/CN106550371A/en
Priority to PCT/CN2016/073069 priority patent/WO2017049829A1/en
Publication of CN106550371A publication Critical patent/CN106550371A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18Network planning tools
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18Network planning tools
    • H04W16/20Network planning tools for indoor coverage or short range network deployment

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)

Abstract

The invention discloses a kind of multiple source cut-in method and system, methods described includes:Multiple source access unit carries out opto-electronic conversion successively to own information source base band optical signal and photoelectricity inverse conversion is processed, and realizes free information source base band optical signal transparent transmission;External information source radiofrequency signal is processed into external information source digital signal by the multiple source access unit, and carries out opto-electronic conversion process to the described external information source digital signal that process is obtained, and obtains external information source optical signal;The own information source base band optical signal and the external information source optical signal are sent to indoor covering system by same optical fiber by the multiple source access unit, so that the indoor coverage of signal of compatible multiple source is realized by the indoor covering system.The invention enables the multiple source signal of different manufacturers or different systems can share a set of indoor covering system simultaneously, so as at utmost reduce the construction cost and programming and planning difficulty of indoor distributed system.

Description

A kind of multiple source cut-in method and system
Technical field
The present invention relates to moving communicating field, more particularly to a kind of multiple source cut-in method and system.
Background technology
China Mobile's mechanics of communication is developed rapidly, and first 2G global mobile communications system has been opened in Guangdong within 1994 System (Global System for Mobile Communication, GSM) digital mobile telephone network, 2009 Year, Ministry of Industry and Information formally provided 3G license, was hereafter only separated by 4 years, and China initially enters the 4G epoch.Make a general survey of China Mobile communication developing history be can be seen that over and cross the 4G epoch from 2G during the decade, and the 5G epoch Also can be arrived in several years afterwards.Several communication times are crossed within the so of short duration time period, multi-standard user is altogether It is saved as a kind of inevitable phenomenon, this requires that operator provides the application scenarios of various communication standard coexistences. So, how on the basis of original old standard signal covering is retained, while the movement for increasing New Schemes signal sets It is standby, realize coexisting, become one and can inquire into problem, because this not only can take into account the shifting of existing multi-standard user Dynamic communication requirement, while operator's purchase cost and maintenance cost can be saved.
Data show that the mobile communication business more than 80% all occurs environment indoors, Fig. 1 is that prior art is carried For conventional macro station indoor covering system schematic diagram, as shown in figure 1, its principle is to form indoor day using antenna feeder Line compartment system, i.e. room subsystem, by the signal distributions of mobile base station every nook and cranny indoors, so as to ensure Room area possesses preferable signal and covers.Fig. 2 is micro- station in-door covering schematic diagram that prior art is provided, from Structure shown in Fig. 2 can be seen that femto cell mainly by netting twine layout, with respect to the macro station shown in Fig. 1 Indoor covering system, due to reducing the room subsystem comprising power splitter and bonder, reduces hardware cost, The signal attenuation of optical fiber and network cable transmission contrast feeder line transmission is very little simultaneously, greatly reduces and base station is exported The requirement of power, thus indoor coverage of signal also progressively begin to use it is micro- station come layout complete.
Increase New Schemes mobile communication on the basis of former communication equipment is retained to cover, existing conventional method is exactly again Increase the corresponding macro station indoor covering system as shown in Figure 1 of a set of New Schemes equipment or micro- station as shown in Figure 2 Macro station indoor covering system.By taking structure shown in Fig. 1 as an example, a set of macro station indoor distributed system includes multiple work(point Device, bonder and room point antenna-feedback system, the access covering of multi-standard mobile device occur in many set macro station rooms Compartment system, as coverage increases, causes indoor distributed system repeated construction and feeder line layout chaotic, Operation cost also can be multiplied therewith.That is, existing increase right for the covering of New Schemes movable signal The design of the indoor distributed system answered, can cause repeated construction and the long range antenna feeder of indoor distributed system The layout of system is chaotic, causes operation cost to increase considerably, the increase of programming and planning difficulty.
The content of the invention
It is an object of the invention to provide a kind of multiple source cut-in method and system, can preferably solve multiple source letter Number simultaneously share the problem of a set of indoor covering system.
According to an aspect of the invention, there is provided a kind of multiple source cut-in method, including:
Multiple source access unit is carried out at opto-electronic conversion and photoelectricity inverse conversion successively to own information source base band optical signal Reason, realizes own information source base band optical signal transparent transmission;
External information source radiofrequency signal is processed into external information source digital signal by the multiple source access unit, and to place The described external information source digital signal that reason is obtained carries out opto-electronic conversion process, obtains external information source optical signal;
The multiple source access unit is by same optical fiber by the own information source base band optical signal and described external Information source optical signal is sent to indoor covering system, so that the room of compatible multiple source is realized by the indoor covering system Interior signal is covered.
Preferably, external information source radiofrequency signal is processed into external information source numeral letter by described multiple source access unit Number the step of include:
The multiple source access unit passes through radio frequency feed line or antenna accesses external information source radiofrequency signal, and via outer Connect the transmission of information source radio-frequency module;
Analog-to-digital conversion process and numeral are carried out successively to the signal after the transmission via external information source radio-frequency module Signal processing, obtains external information source digital signal.
Preferably, the described indoor coverage of signal by the compatible multiple source of indoor covering system realization includes:
The own information source base band optical signal for receiving is converted into own information source base-band digital letter by the indoor covering system Number, the own information source baseband digital signal being converted to is carried out at Digital Signal Processing and digital-to-analogue conversion successively Reason, and the signal that process is obtained is transmitted via own information source radio frequency transmitting channel;
The external information source optical signal for receiving is converted into into external information source digital signal, by the external information source being converted to Digital signal carries out Digital Signal Processing and digital-to-analogue conversion process successively, and will process the signal for obtaining via external Information source radio frequency transmitting channel is transmitted;
By the antenna-feedback system of the indoor covering system, transmit described via own information source radio frequency transmitting channel Signal and it is described via external information source radio frequency transmitting channel transmit signal launch, so as to realize that compatibility is more The in-door covering of information source.
Preferably, also include:
The indoor covering system receives the first indoor pedestrian signal via own information source radio frequency reception channel (having the corresponding subscriber signal of information source by oneself), and the first indoor pedestrian signal is included successively At frequency conversion, amplification, the radiofrequency signal process of filtering, analog-to-digital conversion process, Digital Signal Processing and opto-electronic conversion Reason, obtains the corresponding optical signal of own information source, and sends to the multiple source access unit;
The indoor covering system receives the second indoor pedestrian signal via external information source radio frequency reception channel (i.e. external information source corresponding subscriber signal), and the second indoor pedestrian signal is included successively At frequency conversion, amplification, the radiofrequency signal process of filtering, analog-to-digital conversion process, Digital Signal Processing and opto-electronic conversion Reason, obtains the corresponding optical signal of external information source, and sends to the multiple source access unit.
Preferably, also include:
The multiple source access unit carries out opto-electronic conversion and light successively to the corresponding optical signal of the own information source Electric inverse conversion is processed, and the signal after process is sent to own information source Base Band Unit;
The multiple source access unit the corresponding optical signal of the external information source is carried out successively opto-electronic conversion process, Digital Signal Processing and digital to analog conversion are processed, and will process the signal for obtaining via extraneous information source radio-frequency module Deliver to external information source Remote Radio Unit.
According to a further aspect in the invention, there is provided a kind of multiple source access system, including:
Multiple source access unit, for carrying out opto-electronic conversion and photoelectricity reverse to own information source base band optical signal successively Process is changed, own information source base band optical signal transparent transmission is realized, and external information source radiofrequency signal is processed into into external information source Digital signal, carries out opto-electronic conversion process to the described external information source digital signal that process is obtained, obtains external letter Source optical signal, then by same optical fiber by the own information source base band optical signal and the external information source optical signal It is sent to indoor covering system;
The indoor covering system, for using the incoming described own information source base band optical signal of the same optical fiber The indoor coverage of signal of compatible multiple source is realized with the external information source optical signal.
Preferably, the multiple source access unit includes:
First photoelectric conversion module, for own information source base band optical signal is converted into own information source base band telecommunications Number;
External information source radio-frequency module, for being transmitted through the external information source radio frequency letter that radio frequency feed line or antenna are accessed Number;
Digital signal processing module, for being carried out via the signal of the external information source radio-frequency module transmission successively Analog-to-digital conversion process and Digital Signal Processing, obtain external information source digital signal;
Second photoelectric conversion module, for the own information source base electrical signal and the external information source numeral are believed Number be converted to own information source base band optical signal and external information source optical signal.
Preferably, the indoor covering system includes:
Photoelectric conversion unit, for the own information source base band optical signal for receiving is converted into own information source base-band digital Signal, and the external information source optical signal for receiving is converted into into external information source digital signal;
Digital signal processing unit, for the own information source baseband digital signal being converted to is carried out numeral successively Signal processing and digital-to-analogue conversion process, and the signal that process is obtained is passed via own information source radio frequency transmitting channel It is defeated;The external information source digital signal being converted to is carried out into Digital Signal Processing and digital-to-analogue conversion process successively, and The signal that process is obtained is transmitted via external information source radio frequency transmitting channel.
Preferably, the digital signal processing unit of the indoor covering system is additionally operable to connect via own information source radio frequency Receiving channel reception carries out including the first indoor pedestrian letter that frequency conversion, amplification, the radiofrequency signal of filtering are processed Number, analog-to-digital conversion process, Digital Signal Processing and opto-electronic conversion are carried out to received signal and is processed, obtained certainly There is the corresponding optical signal of information source, and send to the multiple source access unit.
Preferably, the second photoelectric conversion module of the multiple source access unit is to the institute from indoor covering system Stating the corresponding optical signal of own information source carries out opto-electronic conversion, obtains the corresponding signal of telecommunication of the own information source, for First photoelectric conversion module carries out photoelectricity inverse conversion process to the corresponding signal of telecommunication of the own information source, and will Signal after process is sent to own information source Base Band Unit.
Preferably, the digital signal processing unit of the indoor covering system is additionally operable to connect via external information source radio frequency Receiving channel reception carries out including second mobile subscriber's signal that frequency conversion, amplification, the radiofrequency signal of filtering are processed, Carry out analog-to-digital conversion process, Digital Signal Processing and opto-electronic conversion to process to received signal, obtain external letter The corresponding optical signal in source, and send to the multiple source access unit.
Preferably, the second photoelectric conversion module of the multiple source access unit is to the institute from indoor covering system Stating the corresponding optical signal of external information source carries out opto-electronic conversion process, obtains the corresponding signal of telecommunication of the external information source, So that the digital signal processing module carries out Digital Signal Processing to the corresponding signal of telecommunication of the external information source, and The signal that process is obtained is sent to external information source Remote Radio Unit via external information source radio-frequency module.
Compared with prior art, the beneficial effects of the present invention is:
The present invention can be made while layout New Schemes signal macro station in-door covering or micro- station indoor covering system The radiofrequency signal of original other producers, other standard information sources, i.e. multiple source letter are accessed with radio frequency feed line or antenna Number can share a set of indoor covering system simultaneously, so as at utmost reduce the construction of indoor covering system into Originally with programming and planning difficulty.
Description of the drawings
Fig. 1 is the conventional macro station indoor covering system schematic diagram that prior art is provided;
Fig. 2 is micro- station in-door covering schematic diagram that prior art is provided;
Fig. 3 is the signal transmitting flow chart of multiple source cut-in method provided in an embodiment of the present invention;
Fig. 4 is that the signal of multiple source cut-in method provided in an embodiment of the present invention receives flow chart;
Fig. 5 is multiple source access unit functional block diagram provided in an embodiment of the present invention;
Fig. 6 is the schematic diagram that multiple source provided in an embodiment of the present invention accesses macro station covering system;
Fig. 7 is the schematic diagram that multiple source provided in an embodiment of the present invention accesses micro- station covering system.
Specific embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, it will be appreciated that described below Preferred embodiment be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 3 is the signal transmitting flow chart of multiple source cut-in method provided in an embodiment of the present invention, as shown in figure 3, Step includes:
Step S101:Multiple source access unit carries out opto-electronic conversion and light successively to own information source base band optical signal Electric inverse conversion is processed, and realizes own information source base band optical signal transparent transmission, meanwhile, the multiple source access unit will be outer Connect information source radiofrequency signal and be processed into external information source digital signal, and the described external information source numeral letter obtained to process Number opto-electronic conversion process is carried out, obtain external information source optical signal.
Own information source baseband signal is produced by the corresponding Base Band Unit of own information source, and the Base Band Unit is generally put It is placed in communications equipment room.
By own information source base band optical signal by opto-electronic conversion twice, realize that own information source base band optical signal is being believed more Transparent transmission in the access unit of source, that is, optical signal is converted to and the signal of telecommunication and then is reconverted into optical signal.
External information source radiofrequency signal can be the outdoor radiofrequency signal by antenna wireless access, or pass through The external information source radiofrequency signal of feeder line access in radio.
External information source radio-frequency module transmission of the external information source radiofrequency signal via multiple source access unit, then to institute Stating carries out analog-to-digital conversion process and Digital Signal Processing successively via the signal after the transmission of external information source radio-frequency module, Obtain external information source digital signal.
Wherein, during the external information source radiofrequency signal accessed via the transmission of external information source radio-frequency module, to institute State radiofrequency signal be filtered, amplify, the signal processing such as frequency conversion.
Step S102:The multiple source access unit by same optical fiber by the own information source base band optical signal and The external information source optical signal is sent to indoor covering system, and the indoor covering system includes macro station in-door covering System or micro- station indoor covering system, to realize the indoor coverage of signal of compatible multiple source.
Step S103:The incoming described own information source base band optical signal of same optical fiber described in the indoor covering system Respective handling is carried out with the external information source optical signal, and the signal that process is obtained is penetrated via own information source respectively Frequency transmission channel and external information source radio frequency transmitting channel are launched.That is, in the indoor coverage of signal In system, the own information source base band optical signal is carried out after respective handling, by corresponding own information source radio frequency Module carries out signal transmission and realizes launching indoor user signal;Corresponding position is carried out to the external information source optical signal After reason, signal transmission is carried out by corresponding external information source radio-frequency module and realizes launching indoor user signal.
Specifically, for multiple source accesses macro station indoor covering system, by the own information source base band light letter for receiving Own information source base electrical signal number is converted into, the own information source base electrical signal being converted to is carried out into digital-to-analogue and is turned Change, and the signal that process is obtained is transmitted via own information source radio frequency transmitting channel;By the external information source light for receiving Signal is converted into external information source digital signal, and the external information source digital signal being converted to is carried out digital letter successively Number process and digital-to-analogue conversion process, and the signal that obtains will be processed via special external information source radio frequency transmitting channel Transmission;Finally by same antenna-feedback system by it is described via own information source radio frequency transmitting channel transmit signal and The signal transmitted via external information source radio frequency transmitting channel is launched, so as to realize the room of compatible multiple source Interior signal transmitting.For multiple source accesses micro- station indoor covering system, by interface modular converter will receive from There is information source base band optical signal to be converted into own information source base electrical signal, and by network cable transmission to micro- station equipment, turn The own information source base electrical signal got in return is changed into after corresponding Digital Signal Processing and digital-to-analogue conversion Analogue signal, and the process such as frequency conversion, amplification, filtering is carried out via own information source radio frequency transmitting channel;To receive External information source optical signal be converted into external information source digital signal, by the external information source digital signal being converted to according to It is secondary to carry out Digital Signal Processing and digital-to-analogue conversion process, and the signal for obtaining will be processed via external information source radio frequency Penetrate channel transfer;Finally by same antenna, by the letter transmitted via own information source radio frequency transmitting channel Number and it is described via external information source radio frequency transmitting channel transmit signal launch, so as to realize compatible multiple source In-door covering.
Fig. 4 is that the signal of multiple source cut-in method provided in an embodiment of the present invention receives flow chart, as shown in figure 4, Step includes:
Step S201:The external letter that the indoor covering system will be received via external information source radio frequency reception channel The corresponding indoor signal in source and the corresponding indoor letter of own information source received via own information source radio frequency reception channel Number corresponding optical signal is processed as respectively.
Specifically, the indoor covering system receives external information source correspondence via external information source radio frequency reception channel Indoor signal (i.e. the corresponding reception signal of the second indoor pedestrian signal/external information source), and to described outer Connect that information source radio frequency reception channel is transmitted and the signal after processing carries out analog digital conversion and opto-electronic conversion is processed, obtain outer Connect the corresponding optical signal of information source.Meanwhile, the indoor covering system is received via own information source radio frequency reception channel (i.e. the first indoor pedestrian signal/external information source is corresponding to receive letter to the corresponding indoor signal of own information source Number), and the signal after the own information source radio frequency reception channel is transmitted and processed carries out analog digital conversion and photoelectricity Conversion process, obtains the corresponding optical signal of own information source.
Step S202:The indoor covering system respective handling is received and carried out by same optical fiber and The described own information source and the corresponding optical signal of the external information source for obtaining sends multiple source access unit to.
Step S203:The multiple source access unit carries out opto-electronic conversion to the corresponding optical signal of the external information source And Digital Signal Processing, the signal that process is obtained is sent to external information source radio frequency via external information source radio-frequency module Extension unit, carries out opto-electronic conversion successively to the corresponding optical signal of the own information source and photoelectricity inverse conversion is processed, And the signal after process is sent to own information source Base Band Unit.
The multiple source access unit carries out opto-electronic conversion and numeral letter to the corresponding optical signal of the external information source Number process, and send the signal that obtains is processed to external information source remote radio list via extraneous information source radio-frequency module Unit.Meanwhile, the multiple source access unit carries out opto-electronic conversion successively to the corresponding optical signal of the own information source Process with photoelectricity inverse conversion, and the signal after process is sent to own information source Base Band Unit.
From the principle, it is mutual inverse process that indoor signal is received with the processing procedure of transmitting, by making interior more Formula mobile handset device carries out signal transmitting and signal is received, and realizes the communication interaction of base station and mobile subscriber, So as to complete the indoor coverage of signal of multiple source.
Fig. 5 is multiple source access unit functional block diagram provided in an embodiment of the present invention, the multiple source access unit Opto-electronic conversion is carried out successively to own information source base band optical signal and photoelectricity inverse conversion is processed, realize own information source base band Optical signal transparent transmission, and external information source radiofrequency signal is processed into into external information source digital signal, the institute obtained by process Stating external information source digital signal carries out opto-electronic conversion process, obtains external information source optical signal, then by same light The own information source base band optical signal and the external information source optical signal are sent to indoor covering system by fibre, for The indoor covering system, for using the incoming described own information source base band optical signal of the same optical fiber and institute State the indoor coverage of signal that external information source optical signal realizes compatible multiple source.As shown in figure 5, including:First light Electric modular converter 10, external information source radio-frequency module 21 and digital signal processing module 22, the second opto-electronic conversion mould Block 30.Wherein:
Indoors in signal overwrite procedure, own information source base band optical signal is changed by the first photoelectric conversion module 10 Into own information source base electrical signal, external information source radio-frequency module 21 is transmitted through what radio frequency feed line or antenna were accessed External information source radiofrequency signal, digital signal processing module 22 pairs are transmitted via the external information source radio-frequency module 21 Signal carry out analog-to-digital conversion process and Digital Signal Processing successively, obtain external information source digital signal, the second light The own information source base electrical signal and the external information source digital signal are respectively converted into by electric modular converter 30 Own information source base band optical signal and external information source optical signal, and utilize the incoming indoor covering system of same optical fiber.
During signal is received indoors, the second photoelectric conversion module 30 is to having by oneself from indoor covering system The optical signal of information source corresponding frequency band carries out opto-electronic conversion, obtains the corresponding signal of telecommunication of the own information source, the first light The corresponding signal of telecommunication of the own information source of electric modular converter 10 pairs carries out photoelectricity inverse conversion process, and after processing Signal send to own information source Base Band Unit.Second photoelectric conversion module 30 pairs is from indoor covering system The optical signal of external information source corresponding frequency band carries out opto-electronic conversion process, obtains the corresponding telecommunications of the external information source Number, the corresponding signal of telecommunication of the external information source of digital signal processing module 22 pairs carry out the multiple source access it is single After unit and Digital Signal Processing, and will process the signal that obtains via external information source radio-frequency module 21 send to External information source Remote Radio Unit.
For the indoor signal emission process of compatible multiple source:
Own information source base band optical signal is converted into own information source base electrical signal by the first photoelectric conversion module 10. External information source radio-frequency module 21 passes through radio frequency feed line or antenna accesses external information source radiofrequency signal, and via external Information source radio frequency transmitting channel is transmitted, and is penetrated in the external information source accessed via the transmission of external information source radio frequency transmitting channel During frequency signal, the radiofrequency signal is carried out to include the process of filtering, amplification, frequency conversion;Digital Signal Processing Analog-to-digital conversion process is carried out successively via the signal after the transmission of external information source radio frequency transmitting channel described in module 22 pairs And Digital Signal Processing, external information source digital signal is obtained, the Digital Signal Processing is included under shift frequency, numeral The process such as frequency conversion, noise reduction.Second photoelectric conversion module 30 is by the own information source base electrical signal and described outer Connect information source digital signal and be converted into own information source base band optical signal and external information source optical signal, and pass through same optical fiber By the own information source base band optical signal and the external information source optical signal be sent to macro station indoor covering system or Micro- station indoor covering system.
The own information source base band optical signal for receiving is converted into own letter by the photoelectric conversion unit of indoor covering system Source baseband digital signal, and the external information source optical signal for receiving is converted into into external information source digital signal;Cover interior The own information source baseband digital signal being converted to is carried out numeral by the digital signal processing unit of convering system successively Signal processing and digital-to-analogue conversion process, the signal that process is obtained is transmitted via own information source radio frequency transmitting channel, And the external information source digital signal being converted to is carried out into Digital Signal Processing and digital-to-analogue conversion process successively, and will The signal that process is obtained is via corresponding external information source radio frequency transmitting channel transmission in covering system, simultaneous so as to realize Hold the indoor signal transmitting of multiple source.
For the indoor signal of compatible multiple source receives process:
Indoor covering system via own information source radio frequency reception channel receive the first indoor pedestrian signal, and The signal is entered during transmission the first indoor pedestrian signal in the own information source radio frequency reception channel The process of the radiofrequency signals such as row frequency conversion, amplification, filtering, is then carried out to processing the signal for obtaining through radiofrequency signal Analog-to-digital conversion process and opto-electronic conversion are processed, and obtain the corresponding optical signal of own information source.In addition, in-door covering system System receives the second indoor pedestrian signal via external information source radio frequency reception channel, and penetrates in the external information source Second indoor pedestrian is believed during transmission the second indoor pedestrian signal in frequency receiving channel The process of the radiofrequency signals such as frequency conversion, amplification, filtering number is carried out, then the signal to obtaining through radiofrequency signal process Carry out analog-to-digital conversion process and opto-electronic conversion is processed, obtain the corresponding optical signal of external information source.Finally, interior is covered Convering system is by the own corresponding optical signal of information source and the corresponding optical signal of the external information source via same light Fibre is sent to the multiple source access unit.
The macro station indoor covering system or micro- station indoor covering system are processed simultaneously by the second photoelectric conversion module 30 The optical signal of the optical signal reception corresponding with external information source that the own information source correspondence for sending is received is converted into own letter The signal of telecommunication of the signal of telecommunication reception corresponding with external information source that source correspondence is received.
The own information source correspondence that the process of second photoelectric conversion module 30 is obtained is received by the first photoelectric conversion module 10 The signal of telecommunication carry out electro-optic conversion, obtain the own corresponding optical signal of information source, and resulting optical signal sent into The corresponding Base Band Unit of own information source is processed.External information source radio-frequency module 21 and digital signal processing module 22 The signal of telecommunication that the external information source correspondence that the process of second photoelectric conversion module 30 is obtained is received is carried out including numerically The Digital Signal Processing such as frequency conversion, shift frequency, and the signal that process is obtained is transmitted via external information source radio-frequency module, During transmitting via external information source radio-frequency module, the signal is carried out digital-to-analogue conversion and filtering, amplification, The process such as up-conversion, rf filtering, obtains the corresponding radiofrequency signal of external information source, and resulting radio frequency is believed Number send to the Remote Radio Unit of external information source and process.
In order to complete function above, the device needs to be equipped with corresponding electric power system 40, cpu system (i.e. CPU Control system) 50 and clock system 60, to ensure the device normal work.
For multiple source accesses macro station indoor covering system, present invention achieves increase New Schemes movable signal covering A set of indoor covering system is shared simultaneously, specifically, can be covered in layout New Schemes movable signal macro station room While lid, relatively original different manufacturers are accessed using radio frequency feed line, other information source radio frequencies of different systems are believed Number, radio frequency transmission, analog digital conversion and Digital Signal Processing are carried out, then opto-electronic conversion is optical signal, by optical fiber Into Remote Radio Unit, and transmitted with original signal radio-frequency receiving-transmitting frequency, and new mobile information source shares a set of room Interior compartment system realizes that multi-standard signal is covered.
For multiple source accesses micro- station indoor covering system, the present invention also achieves increase New Schemes movable signal and covers Lid shares a set of indoor covering system simultaneously, and specific implementation accesses macro station indoor covering system phase with multiple source Seemingly, femto cell when using multiple source access unit shown in Fig. 5 is had source signal by oneself and passes through the device optical fiber Incoming fiber optic is exported, and other different manufacturers, different systems outer signal are accessed by radio frequency feed line, it is also possible to Wireless access is carried out using antenna, radio frequency transmission, analog digital conversion, Digital Signal Processing and photoelectricity is then carried out and is turned Optical fiber output is used after changing, then network cable transmission is switched to by interface modular converter, entered There is antenna to complete the covering of multiple source signal.
That is, the present invention is specifically included:
1st, opto-electronic conversion and photoelectricity inverse conversion are carried out to own information source, transparent transmission is carried out in multiple source access unit, Realize intelligent acess, optical fiber output.
2nd, utilize to external information source radio frequency feed line or antenna to access, carry out radiofrequency signal frequency conversion transmission, modulus and turn Change and Digital Signal Processing, then carry out opto-electronic conversion, and own signal shares same optical fiber output.
3rd, for macro station indoor covering system, signal enters macro station by optical fiber after multiple source access unit Remote Radio Unit, the macro station Remote Radio Unit is except with the corresponding radio frequency transmission module of own source signal Outward, the radio-frequency (RF) receiving and transmission module also with the external information source frequency range of correspondence, to realize the logical of external source signal Letter is covered.
4th, it is for micro- station indoor covering system, similar with macro station indoor covering system, have information source and external letter by oneself Source after multiple source access unit optical fiber output enters back into interface modular converter and is converted to the signal of telecommunication, realize net Line output is gone forward side by side, and the radio frequency unit in micro- station will equally increase the external information source frequency range of one correspondence of design Radio-frequency (RF) receiving and transmission module, the indoor communications for completing external information source are covered.
Wherein, the external information source that the multiple source access unit is accessed have by oneself relatively information source can be different systems, Can also be that different vendor's base station equipment exports information source, multiple external information sources are accessed and can be connect by increasing multiple source Correspond to external information source radio frequency processing module quantity to realize in entering unit, with wide compatibility.Externally Connect information source to access by radio frequency feed line or access using antenna wireless, dock in multiple source access unit The radiofrequency signal for entering carries out radio frequency link transmission, Digital Signal Processing is carried out after analog digital conversion, then turns through photoelectricity Change and be changed into optical signal, by optical fiber output, and the reception process of external information source is exactly the inverse of above-mentioned transmitting substantially Process.
Below in conjunction with the accompanying drawings technical scheme implementation steps are described in detail.
Fig. 6 is the schematic diagram that multiple source provided in an embodiment of the present invention accesses macro station indoor covering system, Fig. 7 It is the schematic diagram of the micro- station indoor covering system of multiple source access provided in an embodiment of the present invention.Accessed using multiple source Unit accesses external information source, changes into optical signal into after macro station Remote Radio Unit or micro- station system, letter to be completed Number cover, it is necessary to be reduced to former frequency range radiofrequency signal, therefore need in macro station radio frequency stretch system or micro- station Increase following design:
(1) corresponding Digital Signal Processing is done to external source signal on software;
(2) there is corresponding radio-frequency (RF) receiving and transmission module on hardware,
Set for the software and hardware of external information source by the multiple source access unit and the indoor covering system Meter, completes letter so as to realize that external information source shares indoor covering system by multiple source access unit and own information source Number cover.
So that the micro- station systems of new building 4G are covered as an example, the multiple source access unit that present example is provided specifically sets Meter concept, it is assumed that a new building building, nearby 2G, 3G cover, it is desirable to carry out in-door covering 2G, 3G, 4G signal, and 4G bid contracts are micro- station systems.According to routine operation, increase 2G, 3G respectively grand Stand indoor distributed system, can there is two sets of macro station indoor distributed systems and a set of micro- station covering system simultaneously, into This multiplication, and the feeder attenuation that macro station indoor distribution is used is larger, and original 2G/3G macro stations output is had Larger pressure, therefore original 2G/3G signals covering can be introduced using multiple source access unit, neither increase former There are 2G, NodeB output, also do not increase macro station indoor distributed system, by sharing micro- station covering system Cost of implementation is controlled, and is easily accomplished allocation plan.Comprise the following steps that:
1. multiple source access unit design corresponds to the radio frequency link of original 2G/3G signal frequencies respectively, using radio-frequency feed Line or antenna wireless are accessed, and realize that the transmitting-receiving of original 2G/3G information sources radiofrequency signal and multiple source access unit connects Connect.
2. for the transmitting of external information source:
(1) the 2G/3G radio-frequency transmissions information source for accessing enters the correspondence original information source transmitting frequency of multiple source access unit The radio-frequency module of section, carries out rf filtering, amplifies and down-converted through external information source radio frequency submodule, Intermediate frequency filtering being carried out again, being amplified and analog digital conversion, numeral letter is entered after converting analog signals into digital signal Number process submodule.
(2) Digital Signal Processing submodule is moved for the digital signal of external information source radio frequency submodule output Frequently (multicarrier shift frequency is to zero-frequency), Digital Down Convert (Digital Down Conversion, DDC), noise reduction Process, opto-electronic conversion is carried out by the second photoelectric conversion module then, produce optical signal and pass through optical fiber by external letter The transmission signal in source is sent to the interface modular converter of the micro- station systems of 4G.
(3) interface modular converter of micro- station system is in addition to completing the own function switching signal in micro- station, while also Complete external information source optical signal is changed into the function of the signal of telecommunication so that the signal can pass through network cable transmission.
(4) external 2G/3G transmitting information sources enter the micro- station systems of 4G from netting twine after interface modular converter process, By with micro- station in digital signal processing module, digital signal is carried out into Digital Up Convert (Digital Up Conversion, DUC), shift frequency (multicarrier is moved on to into correspondence carrier frequency point) and corresponding peak clipping, numeral Predistortion (Digital Pre-Distortion, DPD) process, then carries out digital-to-analogue conversion, the mould of generation Intending signal carries out including filtering, amplification, upper change by the radio-frequency module that correspondence original 2G/3G in micro- station launches frequency range Frequently, radio frequency amplification, rf filtering etc. are processed, and share the transmitting that the micro- station antennas of 4G complete 2G/3G information sources.
3rd, reception of the external information source to indoor moving signal:
(1) radio-frequency module of frequency range is received to interior by correspondence 2G/3G in micro- station antenna and micro- station first 2G/3G movable signals are received, and carry out down coversion, filtering, amplify after rf filtering, processing and amplifying Transmission and analog digital conversion, convert analog signals into digital signal, enter subsequently into digital signal processing module Row shift frequency, DDC, noise reduction process, the signal after process is by network cable transmission to interface modular converter.
(2) the reception digital signal of external information source is changed into into optical signal in interface modular converter, then by light It is fine that the signal transmission is accessed into multiple source access unit.
(3) signal is turned optical signal by the second photoelectric conversion module in multiple source access unit first Digital signal is changed to, then the digital signal to changing carries out DUC, shift frequency and (multicarrier moved on to correspondence carrier wave Frequency) process, then analogue signal is converted digital signals into by digital to analog converter, the analogue signal of generation is led to The radio-frequency module for crossing in multiple source access unit correspondence original 2G, 3G reception frequency range is filtered, amplifies, upper change Frequently, amplify again, after rf filtering etc. processes, former 2G/3G is transmitted a signal to using radio frequency feed line or antenna Information source rf receiver unit, completes the reception of 2G/3G information sources.
4. own 4G information sources only by the optical module interface of multiple source access unit in input port by optical signal The signal of telecommunication is converted to, optical signal is converted electrical signals in output port, through such opto-electronic conversion and light Electric inverse conversion realizes own source signal transparent transmission, enters back into the original interface conversion in micro- station and signal processing, radio frequency Receive-transmit system, completes the covering of 4G signals.
Multiple source shown in Fig. 6 access macro station indoor covering system to the transmitting of external information source and receive process with It is consistent that multiple source shown in Fig. 7 is accessed in micro- station indoor covering system principle, and difference is that multiple source connects Entering needs to carry out opto-electronic conversion or inverse conversion to signal by interface conversion unit between unit and micro- station, so as to realize The signal transmission at multiple source access unit and micro- station.
As in communication system, the functional realiey such as radio frequency link design, Digital Signal Processing and signal conversion has The scheme of comparative maturity, and scheme implementation also have it is various (such as radio frequency frequency conversion have high and low intermediate frequency and Three kinds of schemes of zero intermediate frequency), the mode that functions given above are implemented includes but is not limited to above-mentioned side Formula.
Although being described in detail to the present invention above, the invention is not restricted to this, the art technology Personnel can carry out various modifications with principle of the invention.Therefore, all modifications made according to the principle of the invention, All should be understood to fall into protection scope of the present invention.

Claims (12)

1. a kind of multiple source cut-in method, it is characterised in that include:
Multiple source access unit is carried out at opto-electronic conversion and photoelectricity inverse conversion successively to own information source base band optical signal Reason, realizes own information source base band optical signal transparent transmission;
External information source radiofrequency signal is processed into external information source digital signal by the multiple source access unit, and to place The described external information source digital signal that reason is obtained carries out opto-electronic conversion process, obtains external information source optical signal;
The multiple source access unit is by same optical fiber by the own information source base band optical signal and described external Information source optical signal is sent to indoor covering system, so that the room of compatible multiple source is realized by the indoor covering system Interior signal is covered.
2. method according to claim 1, it is characterised in that described multiple source access unit will be outer Connecing the step of information source radiofrequency signal is processed into external information source digital signal includes:
The multiple source access unit passes through radio frequency feed line or antenna accesses external information source radiofrequency signal, and via outer Connect the transmission of information source radio-frequency module;
Analog-to-digital conversion process and numeral are carried out successively to the signal after the transmission via external information source radio-frequency module Signal processing, obtains external information source digital signal.
3. method according to claim 1 and 2, it is characterised in that described by the in-door covering System realizes that the indoor coverage of signal of compatible multiple source includes:
The own information source base band optical signal for receiving is converted into own information source base-band digital letter by the indoor covering system Number, the own information source baseband digital signal being converted to is carried out at Digital Signal Processing and digital-to-analogue conversion successively Reason, and the signal that process is obtained is transmitted via own information source radio frequency transmitting channel;
The external information source optical signal for receiving is converted into into external information source digital signal, by the external information source being converted to Digital signal carries out Digital Signal Processing and digital-to-analogue conversion process successively, and will process the signal for obtaining via external Information source radio frequency transmitting channel is transmitted;
By the antenna-feedback system of the indoor covering system, transmit described via own information source radio frequency transmitting channel Signal and it is described via external information source radio frequency transmitting channel transmit signal launch, so as to realize that compatibility is more The in-door covering of information source.
4. method according to claim 3, it is characterised in that also include:
The indoor covering system receives the first indoor pedestrian signal via own information source radio frequency reception channel, And the first indoor pedestrian signal is carried out including successively frequency conversion, amplification, the radiofrequency signal of filtering process, Analog-to-digital conversion process, Digital Signal Processing and opto-electronic conversion are processed, and obtain the corresponding optical signal of own information source, and Send to the multiple source access unit;
The indoor covering system receives the second indoor pedestrian signal via external information source radio frequency reception channel, And the second indoor pedestrian signal is carried out including successively frequency conversion, amplification, the radiofrequency signal of filtering process, Analog-to-digital conversion process, Digital Signal Processing and opto-electronic conversion are processed, and obtain the corresponding optical signal of external information source, and Send to the multiple source access unit.
5. method according to claim 4, it is characterised in that also include:
The multiple source access unit carries out opto-electronic conversion and light successively to the corresponding optical signal of the own information source Electric inverse conversion is processed, and the signal after process is sent to own information source Base Band Unit;
The multiple source access unit the corresponding optical signal of the external information source is carried out successively opto-electronic conversion process, Digital Signal Processing and digital to analog conversion are processed, and will process the signal for obtaining via external information source radio-frequency module Deliver to external information source Remote Radio Unit.
6. a kind of multiple source access system, it is characterised in that include:
Multiple source access unit, for carrying out opto-electronic conversion and photoelectricity reverse to own information source base band optical signal successively Process is changed, own information source base band optical signal transparent transmission is realized, and external information source radiofrequency signal is processed into into external information source Digital signal, carries out opto-electronic conversion process to the described external information source digital signal that process is obtained, obtains external letter Source optical signal, then by same optical fiber by the own information source base band optical signal and the external information source optical signal It is sent to indoor covering system;
The indoor covering system, for using the incoming described own information source base band optical signal of the same optical fiber The indoor coverage of signal of compatible multiple source is realized with the external information source optical signal.
7. system according to claim 6, it is characterised in that the multiple source access unit includes:
First photoelectric conversion module, for own information source base band optical signal is converted into own information source base band telecommunications Number;
External information source radio-frequency module, for being transmitted through the external information source radio frequency letter that radio frequency feed line or antenna are accessed Number;
Digital signal processing module, for being carried out via the signal of the external information source radio-frequency module transmission successively Analog-to-digital conversion process and Digital Signal Processing, obtain external information source digital signal;
Second photoelectric conversion module, for the own information source base electrical signal and the external information source numeral are believed Number be converted to own information source base band optical signal and external information source optical signal.
8. the system according to claim 6 or 7, it is characterised in that the indoor covering system includes:
Photoelectric conversion unit, for the own information source base band optical signal for receiving is converted into own information source base-band digital Signal, and the external information source optical signal for receiving is converted into into external information source digital signal;
Digital signal processing unit, for the own information source baseband digital signal being converted to is carried out numeral successively Signal processing and digital-to-analogue conversion process, and the signal that process is obtained is passed via own information source radio frequency transmitting channel It is defeated;The external information source digital signal being converted to is carried out into Digital Signal Processing and digital-to-analogue conversion process successively, and The signal that process is obtained is transmitted via external information source radio frequency transmitting channel.
9. system according to claim 8, it is characterised in that the numeral letter of the indoor covering system Number processing unit is additionally operable to receive via own information source radio frequency reception channel to carry out including frequency conversion, amplifications, filters Radiofrequency signal process the first indoor pedestrian signal, received signal is carried out analog-to-digital conversion process, Digital Signal Processing and opto-electronic conversion are processed, and are obtained the corresponding optical signal of own information source, and are sent to many letters Source access unit.
10. system according to claim 9, it is characterised in that the second of the multiple source access unit Photoelectric conversion module carries out opto-electronic conversion to the corresponding optical signal of described own information source from indoor covering system, The corresponding signal of telecommunication of the own information source is obtained, so that first photoelectric conversion module is to the own information source pair The signal of telecommunication answered carries out photoelectricity inverse conversion process, and the signal after process is sent to own information source Base Band Unit.
11. systems according to claim 8, it is characterised in that the numeral letter of the indoor covering system Number processing unit is additionally operable to receive via external information source radio frequency reception channel to carry out including frequency conversion, amplifications, filters Radiofrequency signal process second mobile subscriber's signal, analog-to-digital conversion process, numeral are carried out to received signal Signal processing and opto-electronic conversion are processed, and obtain the corresponding optical signal of external information source, and are sent to the multiple source and connect Enter unit.
12. systems according to claim 11, it is characterised in that the of the multiple source access unit Two photoelectric conversion modules carry out photoelectricity and turn to the corresponding optical signal of described external information source from indoor covering system Process is changed, the corresponding signal of telecommunication of the external information source is obtained, so that the digital signal processing module is to described outer Connecing the corresponding signal of telecommunication of information source carries out Digital Signal Processing, and will process the signal for obtaining via external information source radio frequency Module is sent to external information source Remote Radio Unit.
CN201510611941.3A 2015-09-23 2015-09-23 A kind of multiple source cut-in method and system Withdrawn CN106550371A (en)

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