CN109257098A - A kind of more scene communication full-service light distribution system control methods - Google Patents
A kind of more scene communication full-service light distribution system control methods Download PDFInfo
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- CN109257098A CN109257098A CN201811066217.7A CN201811066217A CN109257098A CN 109257098 A CN109257098 A CN 109257098A CN 201811066217 A CN201811066217 A CN 201811066217A CN 109257098 A CN109257098 A CN 109257098A
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- optical fiber
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
Abstract
The invention discloses a kind of more scenes to communicate full-service light distribution system control method, fl transmission and reverse transfer process including signal, fl transmission information source carries out photoelectric conversion through signal access control unit, it is transmitted to expanding element, digital signal is transmitted to remote radio unit (RRU) or digital optical fiber direct station by corresponding optical port by expanding element, and processor detects macro base station carrier frequency quantity, and quantity is more than preset value, the optical port of digital optical fiber direct station is selected, the optical port of remote radio unit (RRU) is otherwise selected；Reverse transfer is when being transmitted to expanding element by optical port for signal from remote radio unit (RRU) and digital optical fiber direct station, by beam combiner by two ways of optical signals mixed transfer.The present invention supports two kinds of communication standards of optical fiber repeater and remote radio unit (RRU), meets the requirement of more scene communication full-service light distribution systems.
Description
Technical field
The invention belongs to fields of communication technology, and in particular to a kind of more scenes communication full-service light distribution system controlling parties
Method.
Background technique
Digital remote system, intermediate frequency from the mobile communication optical fiber repeater station, radio frequency stretch system of early stage to newest release
Far-drawing system, mobile communication field with optical fiber as intermediary's medium progress signal transmission and distribution using more and more.
No matter analog optical fiber transmission technology or digital optical fiber transmission technology, it is all quite mature in the development of mobile communication field.
Relative to traditional radio-frequency cable, the transmission loss of optical cable is small, anti-interference is good, at low cost, effectively overcomes cable distribution half
The small defect of diameter.
But the various Optical fiber relay systems used in the mobile communication network at present only support optical fiber repeater or remote
A kind of communication standard of radio frequency unit is held, or the Optical fiber relay system in combination of two kinds of communication standards will be supported to use, system resource
Waste, higher cost, under the more and more development trends of current communication standard, it is difficult to meet wanting for a variety of communication standard accesses
It asks.
In conclusion providing a kind of more scenes communication full-service light distribution that can satisfy a variety of communication standard accesses and require
The more scene communication full-service light distribution system control methods of system are current technical problems to be solved.
Summary of the invention
It is an object of the invention to: the various Optical fiber relay systems for solving to use in the mobile communication network at present are only propped up
It holds optical fiber repeater and perhaps a kind of communication standard of remote radio unit (RRU) or will support the Optical fiber relay system of two kinds of communication standards
It is applied in combination, the problem of system resource waste, higher cost, proposes a kind of more scene communication full-service light distribution system controlling parties
Method.
The technical solution adopted by the invention is as follows:
A kind of more scene communication full-service light distribution system control methods, method include the fl transmission and reversed biography of signal
Defeated process,
Fl transmission process includes: that the 2G/3G/4G radiofrequency signal of information source is transformed to number by signal access control unit
Digital signal is sent to expanding element by baseband signal, and carry out photoelectric conversion, and expanding element is by digital signal and broadband signal
Digital signal is transmitted to remote radio unit (RRU) or digital fiber by corresponding optical port and directly put by combining by protocol conversion
It stands, the selection of optical port is controlled by processor, and processor detects macro base station carrier frequency quantity, when macro base station carrier frequency quantity is more than default
Value, selects the optical port of digital optical fiber direct station, otherwise selects the optical port of remote radio unit (RRU), passes to the signal of remote radio unit (RRU)
Radiofrequency signal is reverted to by processing, signal covering is carried out to target area by antenna, passes to the letter of digital optical fiber direct station
Number, remote termination will be passed to after signal coupling, frequency conversion and processing by near-end machine, remote termination sends out the emitted subsystem of signal processing
It is shot out；
Reverse transfer process includes: to transmit signal by the inverse process of fl transmission, from remote radio unit (RRU) sum number
When signal is transmitted to expanding element by optical port by word optical fiber repeater, two ways of optical signals is combined by beam combiner and is passed
It is defeated.
Further, the remote radio unit (RRU) goes out ONU broadband signal from decomposing digital signal simultaneously, complete by WLAN unit
At AP wireless coverage.
Further, the digital optical fiber direct station fl transmission process specifically: the base station down that near-end machine will receive
For signal by coupling, down-converted becomes i/q signal or low intermediate frequency signal to base band, after ADC transforms to digital signal by
Certain frame format is packaged into serial data, then is sent to remote termination through optical fiber, and remote termination restores I/ through baseband processing unit frame decoding
Q signal or low intermediate frequency signal transform to analog signal through DAC, then upconvert to radio frequency, and emitted subsystem is launched.
Further, the signal accesses control unit fl transmission process specifically: GSM the and LTE downlink radio frequency of information source
Signal is transformed to intermediate-freuqncy signal by converter unit, this intermediate-freuqncy signal by master unit Digital IF processing unit ADC and
Become digital baseband signal after FPGA signal processing, after carrying out photoelectric conversion by laser, downstream digital signal is sent to
Expanding element.
Further, the expanding element fl transmission process specifically: downstream digital signal is received by laser, with
The downstream broadband signal combining of ONU or AC output, protocol conversion of the digital signal Jing Guo certain format after combining pass through function
Downstream digital signal is transmitted to remote radio unit (RRU) or digital optical fiber direct station by corresponding optical port by sub-unit.
Further, when will be combined from the received digital signal of all optical ports during the reverse transfer, by width therein
Band signal separated transmission is transferred to master unit after passing through laser photoelectric conversion to ONU or AC, isolated digital medium-frequency signal.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, in the present invention, a variety of communication standard accesses is can satisfy and required, support optical fiber repeater and remote radio unit (RRU)
Two kinds of communication standards meet the requirement of more scene communication full-service light distribution systems；
2, in the present invention, in conjunction with the advantages of traditional fiber relay system, optimize the design of photoelectric conversion section, each communication system
Formula shares photo-translating system, and system can support how far hold distribution.China Mobile (GSM900, GSM1800, TD- can be compatible with
LTE (F-band), TD-SCDMA (A frequency range), TD-LTE (E frequency range)), China Telecom (CDMA800, LTE FDD1.8G, LTE
FDD2.1G, TD-LTE2.3G), China Unicom (GSM900, GSM1800/LTE FDD1.8G, WCDMA2100, TD-LTE2.3G)
Etc. multiple communication standards and frequency range.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the method for the present invention flow diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
A kind of more scene communication full-service light distribution system control methods, method include the fl transmission and reversed biography of signal
Defeated process, as shown in Figure 1.
Fl transmission process includes: that the 2G/3G/4G radiofrequency signal of information source is transformed to number by signal access control unit
Digital signal is sent to expanding element by baseband signal, and carry out photoelectric conversion, and expanding element is by digital signal and broadband signal
Digital signal is transmitted to remote radio unit (RRU) or digital fiber by corresponding optical port and directly put by combining by protocol conversion
It stands, the selection of optical port is controlled by processor, and processor detects macro base station carrier frequency quantity, when macro base station carrier frequency quantity is more than default
Value, selects the optical port of digital optical fiber direct station, otherwise selects the optical port of remote radio unit (RRU), passes to the signal of remote radio unit (RRU)
Radiofrequency signal is reverted to by processing, signal covering is carried out to target area by antenna, passes to the letter of digital optical fiber direct station
Number, remote termination will be passed to after signal coupling, frequency conversion and processing by near-end machine, remote termination sends out the emitted subsystem of signal processing
It is shot out；
Reverse transfer process includes: to transmit signal by the inverse process of fl transmission, from remote radio unit (RRU) sum number
When signal is transmitted to expanding element by optical port by word optical fiber repeater, two ways of optical signals is combined by beam combiner and is passed
It is defeated.
Signal access control unit mainly realizes radiofrequency signal access and Digital Signal Processing and photoelectric converting function, forward direction
Link: the 2G/3G/4G downlink radio-frequency signal of information source is transformed to intermediate-freuqncy signal by converter unit, this intermediate-freuqncy signal passes through main list
Become digital baseband signal after Digital IF processing unit ADC and the FPGA signal processing of member, photoelectricity is carried out by laser and is turned
After changing, downstream digital signal is sent to expanding element；Reverse link: laser receives the upstream digital letter that expanding element is sent
Number, by becoming analog if signal after FPGA and DAC signal processing, this signal passes through mixing unit again and is transformed to uplink GSM
With LTE radio signal.
Expanding element fl transmission process specifically: downstream digital signal is received by laser, is exported with ONU or AC
The combining of downstream broadband signal, protocol conversion of the digital signal Jing Guo certain format after combining, by function sub-unit by downlink
Digital signal is transmitted to remote radio unit (RRU) or digital optical fiber direct station by corresponding optical port.Reverse link: will be from all
The received digital uplink signal combining of optical port, by broadband signal separated transmission therein to ONU or AC, isolated digital intermediate frequency
Signal is transferred to master unit after passing through laser photoelectric conversion.
Remote radio unit (RRU) mainly realizes radiofrequency signal and digital signal conversion and the access of broadband signal processing, packet
It includes: forward link: receiving the downstream digital signal sent by optical fiber, decomposite each standard data according to regulation format protocol
Come, the parallel data of recovery carries out Digital Signal Processing again, by the last D of the intermediate frequencies algorithm process such as filtering, interpolation A recovery
At radiofrequency signal, most crosses and signal covering is carried out to target area by antenna.Meanwhile the ONU gone out from downstream digital signal decomposition
Broadband signal completes AP wireless coverage by WLAN unit；Reverse link: believed by the received 2G/3G/4G upstream radio-frequency of antenna
Number intermediate-freuqncy signal is transformed to by mixing unit, after this signal passes through ADC and FPGA signal processing, extension is transferred to by optical fiber
Unit.
Digital optical fiber direct station is made of near-end machine and remote termination, in practical application, near-end machine is one, and remote termination
Can be one or more, group in parallel can also connect on the net, networking mode can also diversification, such as: external, go in ring,
It is tree-like etc..Near-end machine by the base station downlink signal received by coupling, down-converted, to base band become i/q signal or
Low intermediate frequency signal is packaged into serial data by certain frame format after ADC transforms to digital signal, then is sent to distal end through optical fiber
Machine, remote termination restore i/q signal or low intermediate frequency signal through baseband processing unit frame decoding, transform to analog signal through DAC, then on
It is converted to radio frequency, emitted subsystem is launched；The mobile terminal uplink signal received is passed through above-mentioned inverse mistake by remote termination
Journey is above sent to base station receiving end.
The present invention can satisfy a variety of communication standard access requirements, and support optical fiber repeater and two kinds of remote radio unit (RRU) lead to
Believe standard, meets the requirement of more scene communication full-service light distribution systems.In conjunction with the advantages of traditional fiber relay system, optimize light
The design of electric conversion portion, each communication standard share photo-translating system, and system can support how far hold distribution.China can be compatible with
Mobile (GSM900, GSM1800, TD-LTE (F-band), TD-SCDMA (A frequency range), TD-LTE (E frequency range)), China Telecom
(CDMA800, LTE FDD1.8G, LTE FDD2.1G, TD-LTE2.3G), China Unicom (GSM900, GSM1800/LTE
FDD1.8G, WCDMA2100, TD-LTE2.3G) etc. multiple communication standards and frequency range.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of more scenes communicate full-service light distribution system control method, method includes the fl transmission and reverse transfer of signal
Process, it is characterised in that:
Fl transmission process includes: that the 2G/3G/4G radiofrequency signal of information source is transformed to digital baseband by signal access control unit
Signal, and photoelectric conversion is carried out, digital signal is sent to expanding element, expanding element closes digital signal and broadband signal
Digital signal is transmitted to remote radio unit (RRU) or digital optical fiber direct station by corresponding optical port by protocol conversion by road,
The selection of optical port by processor control, processor detect macro base station carrier frequency quantity, when macro base station carrier frequency quantity be more than preset value,
The optical port of digital optical fiber direct station is selected, the optical port of remote radio unit (RRU) is otherwise selected, the signal for passing to remote radio unit (RRU) is logical
It crosses processing and reverts to radiofrequency signal, signal covering is carried out to target area by antenna, passes to the signal of digital optical fiber direct station,
Remote termination will be passed to after signal coupling, frequency conversion and processing by near-end machine, remote termination emits the emitted subsystem of signal processing
It goes out；
Reverse transfer process includes: to transmit signal by the inverse process of fl transmission, from remote radio unit (RRU) and digital light
When signal is transmitted to expanding element by optical port by fine repeater, by beam combiner by two ways of optical signals mixed transfer.
2. a kind of more scenes according to claim 1 communicate full-service light distribution system control method, it is characterised in that: institute
It states remote radio unit (RRU) and goes out ONU broadband signal from decomposing digital signal simultaneously, AP wireless coverage is completed by WLAN unit.
3. a kind of more scenes according to claim 1 communicate full-service light distribution system control method, it is characterised in that: institute
State digital optical fiber direct station fl transmission process specifically: the base station downlink signal received is passed through coupling, lower change by near-end machine
Frequency is handled, and is become i/q signal or low intermediate frequency signal to base band, is packaged into after ADC transforms to digital signal by certain frame format
Serial data, then it is sent to remote termination through optical fiber, remote termination restores i/q signal or Low Medium Frequency letter through baseband processing unit frame decoding
Number, analog signal is transformed to through DAC, then upconvert to radio frequency, emitted subsystem is launched.
4. a kind of more scenes according to claim 1 communicate full-service light distribution system control method, it is characterised in that: institute
State signal access control unit fl transmission process specifically: the 2G/3G/4G downlink radio-frequency signal of information source is become by converter unit
It is changed to intermediate-freuqncy signal, this intermediate-freuqncy signal becomes several after Digital IF processing unit ADC and the FPGA signal processing of master unit
Downstream digital signal is sent to expanding element after carrying out photoelectric conversion by laser by word baseband signal.
5. a kind of more scenes according to claim 1 communicate full-service light distribution system control method, it is characterised in that: institute
State expanding element fl transmission process specifically: downstream digital signal is received by laser, the downlink exported with ONU or AC
Broadband signal combining, protocol conversion of the digital signal Jing Guo certain format after combining are believed downstream digital by function sub-unit
Number remote radio unit (RRU) or digital optical fiber direct station are transmitted to by corresponding optical port.
6. a kind of more scenes according to claim 1 communicate full-service light distribution system control method, it is characterised in that: institute
When stating reverse transfer will be combined in the process from the received digital signal of all optical ports, broadband signal separated transmission therein is given
ONU or AC, isolated digital medium-frequency signal are transferred to master unit after passing through laser photoelectric conversion.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110072243A (en) * | 2019-04-26 | 2019-07-30 | 嘉兴思睿通信科技有限公司 | A kind of method and system enhancing 5G mobile broadband covering scene |
| CN111010680A (en) * | 2019-12-23 | 2020-04-14 | 京信通信系统（中国）有限公司 | Indoor distribution system |
| CN111405580A (en) * | 2020-03-20 | 2020-07-10 | 广州开信通讯系统有限公司 | 5G indoor coverage system and working method |
| CN112929764A (en) * | 2020-12-31 | 2021-06-08 | 京信网络系统股份有限公司 | Signal transmission method, device, system and storage medium |
| CN113794665A (en) * | 2021-09-14 | 2021-12-14 | 广州犇一信息科技有限公司 | System and method for reducing tunnel communication interference |
| CN113950062A (en) * | 2020-06-30 | 2022-01-18 | 中国移动通信集团设计院有限公司 | Home broadband device supporting 5G signal coverage |
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| CN113794665A (en) * | 2021-09-14 | 2021-12-14 | 广州犇一信息科技有限公司 | System and method for reducing tunnel communication interference |
| CN113794665B (en) * | 2021-09-14 | 2024-01-05 | 广州犇一信息科技有限公司 | System and method for reducing tunnel communication interference |
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Application publication date: 20190122 |