CN103581773A - Multi-service access system and method based on PON - Google Patents
Multi-service access system and method based on PON Download PDFInfo
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- CN103581773A CN103581773A CN201310526724.5A CN201310526724A CN103581773A CN 103581773 A CN103581773 A CN 103581773A CN 201310526724 A CN201310526724 A CN 201310526724A CN 103581773 A CN103581773 A CN 103581773A
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Abstract
The invention discloses a multi-service access system and method based on a PON and relates to the field of optical fiber access. The system comprises a local side macro base station, GPON local side OLT equipment, an ODN and at least one far-end RF light device. A near-end light module disc is connected to each far-end RF light device through an optical fiber link and the ODN. The near-end light module disc comprises a near-end duplexer, a near-end monitoring unit and a near-end light switching unit. Each far-end RF light device comprises a far-end light switching unit, a far-end monitoring unit, a power amplifier, a low-noise amplifier and a far-end duplexer. Wireless signals of the local side macro base station extend into families of users through a radio frequency remote technology, a femto base station is formed, wireless access providing a wireless terminal solves the problem that optical fibers are repeatedly placed through fiber to the home and an optical fiber repeater, the building cost of an operator can be greatly lowered, and the data speed of a wireless terminal user can be obviously improved.
Description
Technical field
The present invention relates to optical fiber access field, particularly relate to a kind of based on PON(Passive Optical Network, EPON) multi-service access system and the cut-in method of network.
Background technology
Optical fiber access is from FTTC(Fiber To The Curb, and Fiber To The Curb) to FTTB(Fiber To The Building, Fiber-To-The-Building), then to FTTH(Fiber To The Home, Fiber to the home), constantly close to user resident.Fiber to the home is that current Ge great operator is in the access way of Large scale construction, be endowed the access way for ultimate solution, both inherited the feature that Optical Fiber Transmission message capacity is large, loss is little, anti-electromagnetic interference capability is strong, again because its omnidistance optical link all adopts passive device with laying feature simple, easy to maintenance.This access way can solve the high speed access of user speech business, network data service and video traffic.
Along with social development, radio communication is also in fast development, wireless access is from initial macro base station, micro-base station (Microcell) finally, then to femto base station (Picocell) and femto base station (Femtocell) etc., is also constantly to user resident, to extend.The business-driven center of gravity of radio communication is from initial voice call forward data, video traffic fast transfer, and the demand growth of data capacity is rapid.The variation of this business demand cause base station construction present quantity increase, gradually to the close trend of user, even femto base station can be registered one's residence.
Optical fiber access is to adopt EPON device and optical fiber to deploy troops on garrison duty, and what wireless access adopted is base station and the upstream device that optical fiber connects, and current optical fiber accesses the problem that has repeated construction, waste fiber resource with wireless access.
Summary of the invention
The object of the invention is in order to overcome the deficiency of above-mentioned background technology, a kind of multi-service access system and cut-in method based on PON network is provided, the wireless signal of local side macro base station is extended in user family by Remote Radio Technique, form femto base station, provide the wireless access of wireless terminal to solve that Fiber to the home and optical fiber repeater repeat the to deploy troops on garrison duty problem of optical fiber, can significantly reduce the construction cost of operator, significantly improve the data rate of wireless terminal user.
The invention provides a kind of multi-service access system based on PON network, comprise local side macro base station, GPON terminal OLT device, ODN, at least one far-end RF light device, GPON terminal OLT device comprises near-end optical module dish and PON interface disc, PON interface disc is connected with near-end optical module dish, local side macro base station is connected with near-end optical module dish by radio frequency feed line, and near-end optical module dish is connected to each far-end RF light device by optical fiber link, ODN;
Described near-end optical module dish comprises near-end duplexer, near-end monitoring unit, near-end optical conversion element, and near-end duplexer is connected with near-end optical conversion element, and near-end optical conversion element is connected with near-end monitoring unit, wherein:
Near-end duplexer, for: received RF signal and the emitting radio frequency signal of isolation near-end;
Near-end monitoring unit, for: default parameter is become to control signal, and composition control signaling frame sends to far-end RF light device;
Near-end optical conversion element carries out opto-electronic conversion after radiofrequency signal is amplified;
Described far-end RF light device comprises far-end optical conversion element, remote monitoring unit, power amplifier, low noise amplifier, far-end duplexer, far-end optical conversion element is connected with power amplifier, low noise amplifier respectively, remote monitoring unit is connected with power amplifier, low noise amplifier respectively, power amplifier, low noise amplifier are all connected with far-end duplexer, wherein:
Far-end optical conversion element, for: radiofrequency signal and light signal are changed mutually;
Remote monitoring unit, for: the control signal frame that near-end monitoring unit is sent resolves to inner parameter, carries out corresponding control command; The monitor data composition control signaling frame of feedback states information is returned to near-end monitoring unit;
Power amplifier, for: improve the radiofrequency signal power of output, reach transmitting power requirement;
Low noise amplifier, for: the radiofrequency signal receiving from far-end duplexer with lower noise, amplified;
Far-end duplexer, for: received RF signal and the emitting radio frequency signal of isolation far-end.
On the basis of technique scheme, described far-end RF light device is connected to home network by FTTH ONU.
On the basis of technique scheme, described far-end RF light device is connected to building network by FTTB ONU.
On the basis of technique scheme, described far-end RF light device is connected with family wireless terminal by wireless network.
On the basis of technique scheme, described far-end RF light device is connected by near wireless terminal wireless network and building.
The present invention also provides a kind of multi service access method based on PON network being used in above-mentioned multi-service access system, comprises the following steps:
2G/3G/4G base station down signal is sent into the near-end optical module dish of GPON terminal OLT device by radio frequency feeder by radio-frequency (RF) coupler, after the near-end duplexer of near-end optical module dish, amplifier in near-end optical conversion element, by direct light intensity modulation, become the first light signal, through wavelength division multiplexing unit, be combined into a road optical fiber with the digital optical signal of OLT, send to far-end and register one's residence; The far-end RF light device of registering one's residence is reduced to the first light signal and PON signal after the wavelength-division of far-end optical conversion element is processed, the first light signal is reduced to radiofrequency signal through opto-electronic conversion, through overcompensation amplification, power amplification, duplexing filtering by antenna transmission, complete indoor radio signal and cover, near-end monitoring unit carries out polling type monitoring by the mode of FSK to remote monitoring unit;
Up mobile service signal enters far-end RF light device, after duplexing filtering, low noise amplification, through direct light intensity modulation, it is the second light signal, through EPON, arrive the near-end optical module dish of GPON terminal OLT device, through opto-electronic conversion, be reduced to up radiofrequency signal, after overcompensation amplification, duplexing filtering, by coupler, enter base station upstream Interface, remote monitoring unit carries out polling type monitoring by the mode of FSK to near-end monitoring unit.
On the basis of technique scheme, local side at PON network, by antenna reception or directly use coupling loop to obtain wireless signal from base station, after being coupled out from base station, enter near-end optical module dish, by electric light, change, the signal of telecommunication changes light signal into, the light signal of this light signal and PON interface inputs to optical fiber after WDM device, through Optical Fiber Transmission, arrives far-end RF light device; Far-end RF light device first passes through WDM device by the radiofrequency signal carrier wave in optical fiber and PON baseband carrier demultiplexing, and PON baseband carrier light signal connects the ONU equipment in user family, and by the access of its completing user fixed line voice service, Internet data business; Radio frequency light signal transfers to after the signal of telecommunication, enters far-end RF light device and amplifies, and signal is sent into transmitting antenna, coverage goal region after amplifying.
On the basis of technique scheme, described up mobile service signal to far-end RF light device, then to near-end optical module dish, is got back to base station by reception antenna, thus the access of the mobile voice service of completing, wireless data service.
Compared with prior art, advantage of the present invention is as follows:
(1) the present invention makes full use of the optical fiber link that EPON has been built, the wireless signal of local side macro base station is extended in user family by Remote Radio Technique, form femto base station (Femtocell), the wireless access of wireless terminal (mobile phone, IPAD etc.) is provided, the final integrated access system that forms wired a, wireless access, solve that Fiber to the home and optical fiber repeater repeat the to deploy troops on garrison duty problem of optical fiber, can significantly reduce the construction cost of operator.
(2) the present invention starts just to adopt radio frequency Optical Fiber Transmission from local side, makes full use of bandwidth of an optical fiber, improves the frequency of radio-frequency carrier signal, can significantly improve rf data capacity, significantly improves the data rate of wireless terminal user.For example, utilize the open frequency range of 60GHz, can make terminal use obtain the data rate of Gigabits per second, thereby break through current WiFi(Wireless Fidelity, wireless compatibility authentication) the highest access rate.
(3) the present invention can simplify the design of remote end module, reduces costs, for large-scale promotion lays the foundation.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the multi-service access system based on PON network in the embodiment of the present invention.
Fig. 2 is the structured flowchart of near-end optical module dish in the embodiment of the present invention.
Fig. 3 is the structured flowchart of far-end RF light device in the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of multi-service access system based on PON network, comprise local side macro base station, GPON terminal OLT device, ODN(Optical Distribution Network, optical distribution network), at least one far-end RF(Radio Frequency, radio frequency) light device, GPON terminal OLT device comprises near-end optical module dish and PON interface disc, PON interface disc is connected with near-end optical module dish, local side macro base station is connected with near-end optical module dish by radio frequency feed line, near-end optical module dish passes through optical fiber link, ODN is connected to each far-end RF light device, far-end RF light device can pass through FTTH ONU(Optical Network Unit, optical network unit) be connected to home network, also can be connected to building network by FTTB ONU, can also be connected by near wireless terminal wireless network and family wireless terminal or building.
Shown in Figure 2, near-end optical module dish comprises near-end duplexer, near-end monitoring unit, near-end optical conversion element, and near-end duplexer is connected with near-end optical conversion element, and near-end optical conversion element is connected with near-end monitoring unit, wherein:
Near-end duplexer, for: received RF signal and the emitting radio frequency signal of isolation near-end;
Near-end monitoring unit, for: default parameter is become to control signal, and composition control signaling frame sends to far-end RF light device;
Near-end optical conversion element carries out opto-electronic conversion after radiofrequency signal is amplified.
Shown in Figure 3, far-end RF light device comprises far-end optical conversion element, remote monitoring unit, power amplifier, low noise amplifier, far-end duplexer, far-end optical conversion element is connected with power amplifier, low noise amplifier respectively, remote monitoring unit is connected with power amplifier, low noise amplifier respectively, power amplifier, low noise amplifier are all connected with far-end duplexer, wherein:
Far-end optical conversion element, for: radiofrequency signal and light signal are changed mutually;
Remote monitoring unit, for: the control signal frame that near-end monitoring unit is sent resolves to inner parameter, carries out corresponding control command; The monitor data composition control signaling frame of feedback states information is returned to near-end monitoring unit;
Power amplifier, for: improve the radiofrequency signal power of output, reach transmitting power requirement;
Low noise amplifier, for: the radiofrequency signal receiving from far-end duplexer with lower noise, amplified;
Far-end duplexer, for: received RF signal and the emitting radio frequency signal of isolation far-end.
The embodiment of the present invention also provides a kind of multi service access method based on PON network being used in above-mentioned multi-service access system, comprises the following steps:
2G/3G/4G base station down signal is sent into the near-end optical module dish of GPON terminal OLT device by radio frequency feeder by radio-frequency (RF) coupler, after the near-end duplexer of near-end optical module dish, amplifier in near-end optical conversion element, by direct light intensity modulation, become the first light signal, through wavelength division multiplexing unit, be combined into a road optical fiber with the digital optical signal of OLT, send to far-end and register one's residence; The far-end RF light device of registering one's residence is reduced to the first light signal and PON signal after the wavelength-division of far-end optical conversion element is processed, the first light signal is reduced to radiofrequency signal through opto-electronic conversion, through overcompensation amplification, power amplification, duplexing filtering by antenna transmission, complete indoor radio signal and cover, near-end monitoring unit carries out polling type monitoring by the mode of FSK to remote monitoring unit;
Up mobile service signal enters far-end RF light device, after duplexing filtering, low noise amplification, through direct light intensity modulation, it is the second light signal, through EPON, arrive the near-end optical module dish of GPON terminal OLT device, through opto-electronic conversion, be reduced to up radiofrequency signal, after overcompensation amplification, duplexing filtering, by coupler, enter base station upstream Interface, remote monitoring unit carries out polling type monitoring by the mode of FSK to near-end monitoring unit.
The principle of the embodiment of the present invention is elaborated as follows:
The embodiment of the present invention is processed the near-end wireless access in remote radio in the OLT design that is fused to PON system, the far-end in remote radio covered in the ONU design of merging in PON system, and PON system and radio frequency stretch system sharing fiber resource; Local side at PON network, by antenna reception or directly use coupling loop to obtain wireless signal from base station, after being coupled out from base station, enter near-end optical module dish, by electric light, change, the signal of telecommunication changes light signal into, and the light signal of this light signal and PON interface inputs to optical fiber after WDM device, through Optical Fiber Transmission, arrives far-end RF light device; Far-end RF light device is first by WDM(Wavelength Division Multiplexing, wavelength division multiplexing) device is by the radiofrequency signal carrier wave in optical fiber and PON baseband carrier demultiplexing, PON baseband carrier light signal connects the ONU equipment in user family, and by the access of its completing user fixed line voice service, Internet data business; Radio frequency light signal transfers to after the signal of telecommunication, enters far-end RF light device and amplifies, and signal is sent into transmitting antenna, coverage goal region after amplifying.The operation principle of up link is the same, and up mobile service signal to far-end RF light device, then to near-end optical module dish, is got back to base station by reception antenna, thus the access of the mobile voice service of completing, wireless data service.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these are revised and modification belongs within the scope of the claims in the present invention and equivalent technologies thereof, these modifications and modification are also within protection scope of the present invention.
The prior art that the content of not describing in detail in specification is known to the skilled person.
Claims (8)
1. the multi-service access system based on PON network, it is characterized in that: comprise local side macro base station, GPON terminal OLT device, ODN, at least one far-end RF light device, GPON terminal OLT device comprises near-end optical module dish and PON interface disc, PON interface disc is connected with near-end optical module dish, local side macro base station is connected with near-end optical module dish by radio frequency feed line, and near-end optical module dish is connected to each far-end RF light device by optical fiber link, ODN;
Described near-end optical module dish comprises near-end duplexer, near-end monitoring unit, near-end optical conversion element, and near-end duplexer is connected with near-end optical conversion element, and near-end optical conversion element is connected with near-end monitoring unit, wherein:
Near-end duplexer, for: received RF signal and the emitting radio frequency signal of isolation near-end;
Near-end monitoring unit, for: default parameter is become to control signal, and composition control signaling frame sends to far-end RF light device;
Near-end optical conversion element carries out opto-electronic conversion after radiofrequency signal is amplified;
Described far-end RF light device comprises far-end optical conversion element, remote monitoring unit, power amplifier, low noise amplifier, far-end duplexer, far-end optical conversion element is connected with power amplifier, low noise amplifier respectively, remote monitoring unit is connected with power amplifier, low noise amplifier respectively, power amplifier, low noise amplifier are all connected with far-end duplexer, wherein:
Far-end optical conversion element, for: radiofrequency signal and light signal are changed mutually;
Remote monitoring unit, for: the control signal frame that near-end monitoring unit is sent resolves to inner parameter, carries out corresponding control command; The monitor data composition control signaling frame of feedback states information is returned to near-end monitoring unit;
Power amplifier, for: improve the radiofrequency signal power of output, reach transmitting power requirement;
Low noise amplifier, for: the radiofrequency signal receiving from far-end duplexer with lower noise, amplified;
Far-end duplexer, for: received RF signal and the emitting radio frequency signal of isolation far-end.
2. the multi-service access system based on PON network as claimed in claim 1, is characterized in that: described far-end RF light device is connected to home network by FTTH ONU.
3. the multi-service access system based on PON network as claimed in claim 1, is characterized in that: described far-end RF light device is connected to building network by FTTB ONU.
4. the multi-service access system based on PON network as claimed in claim 1, is characterized in that: described far-end RF light device is connected with family wireless terminal by wireless network.
5. the multi-service access system based on PON network as claimed in claim 1, is characterized in that: described far-end RF light device is connected by near wireless terminal wireless network and building.
6. be used in claim 1 to 5 the multi service access method based on PON network in multi-service access system described in any one, it is characterized in that, comprise the following steps:
2G/3G/4G base station down signal is sent into the near-end optical module dish of GPON terminal OLT device by radio frequency feeder by radio-frequency (RF) coupler, after the near-end duplexer of near-end optical module dish, amplifier in near-end optical conversion element, by direct light intensity modulation, become the first light signal, through wavelength division multiplexing unit, be combined into a road optical fiber with the digital optical signal of OLT, send to far-end and register one's residence; The far-end RF light device of registering one's residence is reduced to the first light signal and PON signal after the wavelength-division of far-end optical conversion element is processed, the first light signal is reduced to radiofrequency signal through opto-electronic conversion, through overcompensation amplification, power amplification, duplexing filtering by antenna transmission, complete indoor radio signal and cover, near-end monitoring unit carries out polling type monitoring by the mode of FSK to remote monitoring unit;
Up mobile service signal enters far-end RF light device, after duplexing filtering, low noise amplification, through direct light intensity modulation, it is the second light signal, through EPON, arrive the near-end optical module dish of GPON terminal OLT device, through opto-electronic conversion, be reduced to up radiofrequency signal, after overcompensation amplification, duplexing filtering, by coupler, enter base station upstream Interface, remote monitoring unit carries out polling type monitoring by the mode of FSK to near-end monitoring unit.
7. the multi service access method based on PON network as claimed in claim 6, it is characterized in that: at the local side of PON network, by antenna reception or directly use coupling loop to obtain wireless signal from base station, after being coupled out from base station, enter near-end optical module dish, by electric light, change, the signal of telecommunication changes light signal into, the light signal of this light signal and PON interface inputs to optical fiber after WDM device, through Optical Fiber Transmission, arrives far-end RF light device; Far-end RF light device first passes through WDM device by the radiofrequency signal carrier wave in optical fiber and PON baseband carrier demultiplexing, and PON baseband carrier light signal connects the ONU equipment in user family, and by the access of its completing user fixed line voice service, Internet data business; Radio frequency light signal transfers to after the signal of telecommunication, enters far-end RF light device and amplifies, and signal is sent into transmitting antenna, coverage goal region after amplifying.
8. the multi service access method based on PON network as claimed in claim 6, it is characterized in that: described up mobile service signal by reception antenna to far-end RF light device, arrive again near-end optical module dish, get back to base station, thus the access of the mobile voice service of completing, wireless data service.
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| CN201310526724.5A CN103581773A (en) | 2013-10-31 | 2013-10-31 | Multi-service access system and method based on PON |
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| CN104301367A (en) * | 2014-03-14 | 2015-01-21 | 同济大学 | Communication method between remote unit and power amplifier in digital multipoint distribution system |
| CN105306764A (en) * | 2015-11-09 | 2016-02-03 | 中国电子科技集团公司第五十四研究所 | Short-wave modem |
| CN107888290A (en) * | 2017-11-30 | 2018-04-06 | 杭州初灵信息技术股份有限公司 | A kind of GPON signals polymerization remote device and its polymerization remote method |
| CN108882255A (en) * | 2018-06-15 | 2018-11-23 | 上海中兴易联通讯股份有限公司 | A kind of framework of the PON carrying room household LTE subsystem |
| CN109803271A (en) * | 2019-01-24 | 2019-05-24 | 谢萍 | A kind of communication equipment and communication system with micro-base station |
| CN110445543A (en) * | 2019-08-22 | 2019-11-12 | 和源通信（上海）股份有限公司 | A kind of Optical fiber relay remote device |
| CN113890613A (en) * | 2021-09-28 | 2022-01-04 | 武汉恒泰通技术有限公司 | Optical fiber filtering system for transmitting multiple services by one optical fiber |
| CN114071265A (en) * | 2021-11-15 | 2022-02-18 | 太仓市同维电子有限公司 | System, method, device, processor and storage medium for realizing electromagnetic compatibility test for PON uplink telecommunication terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104301367A (en) * | 2014-03-14 | 2015-01-21 | 同济大学 | Communication method between remote unit and power amplifier in digital multipoint distribution system |
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| CN113890613A (en) * | 2021-09-28 | 2022-01-04 | 武汉恒泰通技术有限公司 | Optical fiber filtering system for transmitting multiple services by one optical fiber |
| CN114071265A (en) * | 2021-11-15 | 2022-02-18 | 太仓市同维电子有限公司 | System, method, device, processor and storage medium for realizing electromagnetic compatibility test for PON uplink telecommunication terminal |
| CN114071265B (en) * | 2021-11-15 | 2024-05-28 | 太仓市同维电子有限公司 | System, method, device, processor and storage medium for realizing electromagnetic compatibility test for PON uplink telecommunication terminal |
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Application publication date: 20140212 |