CN103401598A - Novel multi-network-integrated indoor distribution system - Google Patents
Novel multi-network-integrated indoor distribution system Download PDFInfo
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- CN103401598A CN103401598A CN2013103085219A CN201310308521A CN103401598A CN 103401598 A CN103401598 A CN 103401598A CN 2013103085219 A CN2013103085219 A CN 2013103085219A CN 201310308521 A CN201310308521 A CN 201310308521A CN 103401598 A CN103401598 A CN 103401598A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention relates to a novel multi-network-integrated indoor distribution system. The novel multi-network-integrated indoor distribution system comprises an access unit, an extension unit and a remote end unit, wherein the access unit, the extension unit and the remote end unit transmit signals through digital optical fibers; the access unit can couple multiple downlink radio-frequency (RF) signals from RRUs (Radio Remote Units) of different systems, and the downlink RF signals are converted into baseband digital signals after the downlink RF signals pass through a digital processing unit; the access unit can receive downlink baseband signals from BBUs (Building Baseband Units) of different systems, and the downlink baseband signals can be transmitted together with the baseband digital signals, which are received and processed by an RF coupling port, after the downlink baseband signals pass through the digital processing unit. The novel multi-network-integrated indoor distribution system has the beneficial effects that indoor signal coverage is realized by adopting information source access, digital optical fiber transmission and remote coverage; and the access unit supports signal access of multiple network types and supports signal access of multiple forms. The invention discloses a multi-network-type signal access and coverage system, and repeated construction is avoided, so that the system is energy-saving and environment-friendly; meanwhile, the system supports the signal access of multiple forms, so that network construction is more flexible and convenient.
Description
Technical field
The present invention relates to the indoor Covering domain of mobile communications network, is that a kind of novel many nets merge indoor distributed system.
Background technology
For solving the indoor covering problem of radio signal, effective method is built indoor distributed system exactly at present, base station signal is incorporated into to each indoor zone, thereby coverage hole in decontamination chamber, for indoor user provides stable, reliable radio signal, make indoor user enjoy high-quality communication service.
Along with the development of radio communication, the network of the multiple types such as 2G/3G/4G all needs to carry out simultaneously indoor covering.And traditional coverage mode is based on repeater or based on the indoor distributed system of RF remote unit (RRU), every kind of equipment can only be supported a kind of network formats, can't realize with a set of equipment transmission and the covering of the multiple types networks such as 2G/3G/4G, this has directly caused the cost of whole networking to increase.
Summary of the invention
The present invention will solve the shortcoming of above-mentioned prior art, provides a kind of novel many nets to merge indoor distributed system, and this system integration degree is high, and a set of equipment can be realized transmission and the covering of the multiple types networks such as 2G/3G/4G; Networking is flexible, and the information source access way both can, from the radio frequency output coupling access (with the indoor distributed system based on repeater) of RRU, also can access (with the indoor distributed system based on RRU) from the base band output optical fibre of BBU.
The present invention solves the technical scheme that its technical problem adopts: this novel many nets merge indoor distributed system, comprise access unit, expanding element and far-end unit, between access unit, expanding element and far-end unit, pass through the digital fiber signal transmission; Described access unit can be coupled multichannel from the downlink radio-frequency signal of different systems RRU, after digital processing element, converts baseband digital signal to and transmits by optical fiber; Can receive the downgoing baseband signal from different systems BBU by optical fiber, also can be through after digital processing element, together with RF-coupled mouthful of baseband digital signal that receives and processed, by optical fiber, transmitting.(described access unit can be coupled the N road from the downlink radio-frequency signal of different systems RRU, after mixing and analog-to-digital conversion, by digital processing element, carries out the base band relevant treatment and framing transmits by optical fiber; It also can receive the downgoing baseband signal of different systems BBU and carry out the dependency basis tape handling according to specified protocol by optical fiber, then together with signal that radio frequency path is come by New Deal framing again and by optical fiber, transmit).
Described far-end unit, from optical fiber, extracting signal and exporting the downstream signal of each frequency range standard, by behind the POIHe road, sending into together antenna-feedback system, is realized the covering of indoor regional; POI is from after the upward signal of isolating each frequency range standard antenna-feedback system, by described far-end unit, undertaken after digital processing sending access unit back to and finally being delivered in the corresponding BBU of each standard or RRU by optical fiber going.
Described expanding element can the access network based on ethernet signal with after original signal in optical fiber framing again together with transmission, also can extract ethernet signal from optical fiber, separating frame; Described far-end unit can extract ethernet signal from optical fiber, separating frame, also can the access network based on ethernet signal with after original signal in optical fiber framing again together with transmission, for Ethernet transparent transmission link is provided between expanding element and far-end unit.
Described access unit can one or more expanding elements in parallel, and expanding element can cascade multi-tier unit, and expanding element can multi-stage far-end in parallel unit simultaneously; Described access unit is direct one or more far-end unit in parallel also.
The present invention is star-like, the networking mode of chain or mixing makes networking more flexible.
The effect that the present invention is useful is: adopt information source access, digital fiber transmission, far-end to cover and realize indoor coverage of signal.Access unit had both been supported the signal access of many network formats; Support again multi-form signal access: from the simulation of RRU, export RF-coupled or access from the digital fiber base band of BBU.The invention discloses a kind of signal access and covering system of many network formats, avoided repeated construction, energy-conserving and environment-protective; This system is supported multi-form signal access simultaneously, makes networking also more flexible.
The accompanying drawing explanation
Fig. 1 is system block diagram of the present invention;
Fig. 2 is that the present invention nets the theory diagram that merges access unit in indoor distributed system more;
Fig. 3 is that the present invention nets the theory diagram that merges expanding element in indoor distributed system more;
Fig. 4 is that the present invention nets the theory diagram that merges far-end unit in indoor distributed system more;
Fig. 5 is that the present invention nets the network-building method that merges indoor distributed system more.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, it mainly is comprised of access unit, expanding element and far-end unit system block diagram of the present invention, realizes the indoor covering that many nets merge.
Access unit is connected with the simulation output of RRU or is connected with the optical fiber output of BBU, be used to receiving downstream signal and transmitting upward signal; It is connected with expanding element by optical fiber.
Expanding element is connected by internet devices such as gigabit network interface and switches, merges together with the data that the Ethernet data that receives and access unit transmission are come and passes to far-end unit; The data decomposition that receives from far-end unit is opened, and Ethernet data is passed to the internet devices such as switch that connect, and upward signal transmits tieback and enters unit.
Far-end unit is exported to the POIHe road to the downstream signal that receives from expanding element and is sent into antenna-feedback system, realizes indoor covering; Simultaneously the upward signal that receives by the optical fiber transmission expanding element of pulling over.Far-end unit is from optical fiber, extracting Ethernet data and giving the plug-in internet devices such as AP, and the Ethernet data of the internet devices such as AP through the optical fiber transmission expanding element of pulling over, realize transparent Ethernet transmission link.During the plug-in AP of far-end unit, the output of AP also can realize covering by the POIHe road in antenna-feedback system.
As shown in Figure 2, external interface is mainly 4 radio frequency interfaces and 6 optical fiber interfaces to the theory diagram of access unit.Radio frequency interface, for RRU, communicating by letter, transmits uplink and downlink signals; Wherein 4 optical fiber interfaces, for expanding element or the far-end unit of next stage, being connected, have identical optical fiber speed; Other 2 optical fiber interfaces are fixed for communicating by letter with BBU, transmit uplink and downlink signals, can use different optical fiber speed.
The access unit internal main will be comprised of radio frequency unit, digital processing element, optical fiber interface, monitoring, clock and monitoring etc.Radio frequency unit is realized mixing and filtering, the functions such as gain adjustment, analog-to-digital conversion of downstream signal; Realize the function such as digital-to-analogue conversion, modulated filter, gain adjustment of upward signal; Uplink and downlink signals closes road by duplex.Digital processing element carries out the DDC/DUC processing, according to agreement, carries out framing solution frame the data of radio frequency interface; Data to the BBU optical fiber interface are carried out Base-Band Processing by the agreement of appointment, finally together with the data of radio frequency interface according to new agreement framing solution frame; Downstream signal after processing is sent toward 4 optical fiber interfaces, the upward signal that receives from 4 optical fiber interfaces is closed to Lu Houzai and process.Optical fiber interface is realized the conversion of going here and there and reaching and going here and there, but supports the light mouth of 4 tunnel phase same rates and the light mouth of 2 tunnel separate configurations speed.Monitoring unit achieves a butt joint into the control of unit, simultaneously control information is delivered to digital processing element and carries out the framing transmission by agreement, realizes the Control on Communication to miscellaneous equipment in whole network topology.When not meeting BBU, clock unit adopts the reference clock of local reference clock as whole system, and provides system required various work clocks; When meeting BBU, clock unit adopts the clock that recovers in optical fiber as the reference clock.Power subsystem is realized voltage transitions, provides system required various different voltage; Backup battery is provided, realizes power fail warning; International full AC-AC input, realize the direct current input by changing power module.
As shown in Figure 3, external interface is mainly 8 gigabit Ethernet mouths and 10 optical fiber interfaces to the theory diagram of expanding element.The gigabit Ethernet mouth is for the internet device such as switch, being connected, support 10/100/1000M rate adaptation; Fix 1 optical fiber interface be used to connecting access unit or higher level's expanding element; Fix 1 optical fiber interface be used to connecting the expanding element of subordinate; All the other 8 optical fiber interfaces are for connecting far-end unit, and are corresponding one by one with 8 gigabit Ethernet mouths, i.e. after the data of gigabit Ethernet mouth N packing, only mail to optical fiber interface N.
The expanding element internal main will be comprised of digital processing element, optical fiber interface, Ethernet interface, monitoring, clock and power supply.Digital processing element outputs to far-end unit to the data of coming from access unit or higher level's expanding element from optical fiber interface N after framing together with data that Ethernet interface N comes; The downstream signal that receives from access unit or higher level's expanding element is sent toward all the other 9 optical fiber interfaces, deliver to access unit or higher level's expanding element after the upward signal that receives from other 9 optical fiber interfaces is closed to road.Optical fiber interface is realized going here and there and reaching parallel-serial conversion, adopts identical light mouth speed.Adopt 24 passage gigabit Ethernet PHY chips, interface adopts RGMII interface and digital processing element to communicate.Monitoring unit is realized the control to expanding element, simultaneously information is delivered to digital processing element and carries out the framing transmission by agreement, with the control that communicates of miscellaneous equipment in whole network topology.Clock unit uses the reference clock from recovering optical fiber, provides system required various work clocks.Power subsystem is realized voltage transitions, provides system required various different voltage; Backup battery is provided, realizes power fail warning; International full AC-AC input, realize the direct current input by changing power module.
As shown in Figure 4, external interface mainly contains 1 optical fiber interface, 1 gigabit Ethernet mouth and 4 radio frequency interfaces to the theory diagram of far-end unit.Optical fiber interface is for connecting access unit or expanding element; Ethernet interface, for connecting plug-in internet device, is supported the 10/100/1000M rate adaptation; Radio frequency interface is connected to POI, and downstream signal JingPOIHe road outputs to antenna feeder, and the upward signal that antenna feeder receives is delivered to each radio frequency interface after POI separates.
The far-end unit internal main will be comprised of optical fiber interface, Ethernet interface, digital processing element, radio frequency unit, monitoring, clock and power supply.Optical fiber interface realizes going here and there and reaching parallel-serial conversion.Single channel gigabit Ethernet PHY chip interface adopts RGMII interface and digital processing element to communicate.Digital processing element is carrying out exporting to radio frequency unit after the DUC processing from the downstream signal that receives optical fiber, after the upward signal DDC that radio frequency unit is come processes, sends into optical fiber interface and transmits.Radio frequency unit carries out digital-to-analogue conversion, adjustment, the modulated filter of gaining to downstream signal and carries out final amplification output, upward signal is carried out to low noise and amplify rear mixing and filtering, gain adjustment, analog-to-digital conversion, and uplink and downlink signals closes road by duplex.Monitoring unit is realized the control to far-end unit, simultaneously information is delivered to digital processing element and carries out the framing transmission by agreement, with the control that communicates of miscellaneous equipment in whole network topology.Clock unit uses the reference clock from recovering optical fiber, provides system required various work clocks.Power subsystem is realized voltage transitions, provides system required various different voltage; Backup battery is provided, realizes power fail warning; International full AC-AC input, realize the direct current input by changing power module.
Fig. 5 is that the present invention nets the network-building method that merges indoor distributed system more, very flexibly, support the networking mode of star-like, chain and mixing, in practical application, can select different networking modes according to scene.
Access unit has 4 optical fiber interfaces be used to connecting the next stage unit.
Far-end unit can be directly connected to access unit, and do not possess Ethernet pass-through channel between these two unit this moment.
Far-end unit is connected to access unit after also can first connecting expanding element, the ethernet channel that have a transparent transmission between expanding element and far-end unit this moment.
An expanding element can connect 8 far-end units, when covering needs unnecessary 8 remote terminations, can realize by a plurality of expanding elements of cascade, but far-end unit only forms the ethernet channel of transparent transmission with direct-connected expanding element.
In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of requirement of the present invention.
Claims (4)
1. novel many nets merge indoor distributed system, it is characterized in that: comprise access unit, expanding element and far-end unit, between access unit, expanding element and far-end unit, pass through the digital fiber signal transmission; Described access unit can be coupled multichannel from the downlink radio-frequency signal of different systems RRU, after digital processing element, converts baseband digital signal to and transmits by optical fiber; Can receive the downgoing baseband signal from different systems BBU by optical fiber, through after digital processing element, together with RF-coupled mouthful of baseband digital signal that receives and processed, by optical fiber, transmitting.
2. novel many nets according to claim 1 merge indoor distributed systems, it is characterized in that: described far-end unit is from optical fiber, extracting signal and exporting the downstream signal of each frequency range standard, by behind the POIHe road, sending into together antenna-feedback system; POI is from after the upward signal of isolating each frequency range standard antenna-feedback system, by described far-end unit, undertaken after digital processing sending access unit back to and finally being delivered in the corresponding BBU of each standard or RRU by optical fiber going.
3. novel many nets according to claim 1 merge indoor distributed systems, it is characterized in that: described expanding element can the access network based on ethernet signal with after original signal in optical fiber framing again together with transmission, also can extract ethernet signal from optical fiber, separating frame; Described far-end unit can extract ethernet signal from optical fiber, separating frame, also can the access network based on ethernet signal with after original signal in optical fiber framing again together with transmission, for Ethernet transparent transmission link is provided between expanding element and far-end unit.
4. novel many nets according to claim 1 merge indoor distributed system, it is characterized in that: described access unit can one or more expanding elements in parallel, expanding element can cascade multi-tier unit, and expanding element can multi-stage far-end in parallel unit simultaneously; Described access unit is direct one or more far-end unit in parallel also.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104582013A (en) * | 2014-12-31 | 2015-04-29 | 杭州柏乐尼通信设备有限公司 | Communication radio frequency server |
| CN104936197A (en) * | 2014-03-20 | 2015-09-23 | 常州隽通电子技术有限公司 | Mobile communication micropower digital multipoint indoor coverage system |
| CN105680950A (en) * | 2016-01-27 | 2016-06-15 | 南京典格通信科技有限公司 | Five-mode seven-frequency ten-channel intelligent digital optical fiber indoor distribution system |
| CN105682106A (en) * | 2014-11-18 | 2016-06-15 | 中国移动通信集团上海有限公司 | Multi-standard compatible in-building coverage design method and apparatus |
| CN106211195A (en) * | 2016-08-31 | 2016-12-07 | 武汉邮电科学研究院 | A kind of indoor distributed covering system of LTE and method |
| CN106550371A (en) * | 2015-09-23 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of multiple source cut-in method and system |
| CN107889283A (en) * | 2016-09-29 | 2018-04-06 | 中兴通讯股份有限公司 | A kind of base station and the switching method of hardware corridor |
| CN109076636A (en) * | 2016-12-26 | 2018-12-21 | 华为技术有限公司 | Signal processing method and distributed control means in distributed base station |
| CN110061883A (en) * | 2019-04-26 | 2019-07-26 | 嘉兴思睿通信科技有限公司 | A kind of real time computation system and method for the 5G communication technology |
| CN111010680A (en) * | 2019-12-23 | 2020-04-14 | 京信通信系统（中国）有限公司 | Indoor distribution system |
| CN111510218A (en) * | 2020-03-30 | 2020-08-07 | 深圳国人无线通信有限公司 | 5G wireless network communication system |
| CN111935420A (en) * | 2020-08-13 | 2020-11-13 | 深圳市注目视讯技术有限公司 | Method for infinitely expanding signal interface node |
| 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 |
| CN115021818A (en) * | 2022-04-22 | 2022-09-06 | 三维通信股份有限公司 | Ethernet networking system and networking method based on distributed base station |
| CN115277300A (en) * | 2022-09-30 | 2022-11-01 | 深圳国人无线通信有限公司 | Optimized room distribution system covering method and room distribution system |
| WO2023082744A1 (en) * | 2021-11-12 | 2023-05-19 | 三维通信股份有限公司 | Carrier configuration method and system for distributed antenna system, processing device, and chip |
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2013
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| CN104936197A (en) * | 2014-03-20 | 2015-09-23 | 常州隽通电子技术有限公司 | Mobile communication micropower digital multipoint indoor coverage system |
| CN105682106A (en) * | 2014-11-18 | 2016-06-15 | 中国移动通信集团上海有限公司 | Multi-standard compatible in-building coverage design method and apparatus |
| CN105682106B (en) * | 2014-11-18 | 2019-01-18 | 中国移动通信集团上海有限公司 | A kind of indoor coverage designing method and device of multisystem compatible |
| CN104582013A (en) * | 2014-12-31 | 2015-04-29 | 杭州柏乐尼通信设备有限公司 | Communication radio frequency server |
| CN106550371A (en) * | 2015-09-23 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of multiple source cut-in method and system |
| WO2017049829A1 (en) * | 2015-09-23 | 2017-03-30 | 中兴通讯股份有限公司 | Multi-source access method and system |
| CN105680950A (en) * | 2016-01-27 | 2016-06-15 | 南京典格通信科技有限公司 | Five-mode seven-frequency ten-channel intelligent digital optical fiber indoor distribution system |
| CN106211195A (en) * | 2016-08-31 | 2016-12-07 | 武汉邮电科学研究院 | A kind of indoor distributed covering system of LTE and method |
| CN107889283A (en) * | 2016-09-29 | 2018-04-06 | 中兴通讯股份有限公司 | A kind of base station and the switching method of hardware corridor |
| CN109076636A (en) * | 2016-12-26 | 2018-12-21 | 华为技术有限公司 | Signal processing method and distributed control means in distributed base station |
| CN110061883A (en) * | 2019-04-26 | 2019-07-26 | 嘉兴思睿通信科技有限公司 | A kind of real time computation system and method for the 5G communication technology |
| CN111010680A (en) * | 2019-12-23 | 2020-04-14 | 京信通信系统（中国）有限公司 | Indoor distribution system |
| WO2021129637A1 (en) * | 2019-12-23 | 2021-07-01 | 京信网络系统股份有限公司 | Indoor distribution system |
| CN111510218A (en) * | 2020-03-30 | 2020-08-07 | 深圳国人无线通信有限公司 | 5G wireless network communication system |
| CN111510218B (en) * | 2020-03-30 | 2023-05-02 | 深圳国人无线通信有限公司 | 5G wireless network communication system |
| 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 |
| CN113950062B (en) * | 2020-06-30 | 2023-08-15 | 中国移动通信集团设计院有限公司 | Home broadband device supporting 5G signal coverage |
| CN111935420A (en) * | 2020-08-13 | 2020-11-13 | 深圳市注目视讯技术有限公司 | Method for infinitely expanding signal interface node |
| WO2023082744A1 (en) * | 2021-11-12 | 2023-05-19 | 三维通信股份有限公司 | Carrier configuration method and system for distributed antenna system, processing device, and chip |
| CN115021818A (en) * | 2022-04-22 | 2022-09-06 | 三维通信股份有限公司 | Ethernet networking system and networking method based on distributed base station |
| CN115021818B (en) * | 2022-04-22 | 2024-05-07 | 三维通信股份有限公司 | Ethernet networking system and networking method based on distributed base station |
| CN115277300A (en) * | 2022-09-30 | 2022-11-01 | 深圳国人无线通信有限公司 | Optimized room distribution system covering method and room distribution system |
| CN115277300B (en) * | 2022-09-30 | 2022-12-09 | 深圳国人无线通信有限公司 | Optimized room distribution system covering method and room distribution system |
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Inventor after: Li Xin Inventor after: Jin Huaidong Inventor after: Chu Rulong Inventor after: Mao Jianyang Inventor after: Chen Qingsong Inventor after: Zhu Huaihuan Inventor after: Wu Zhijian Inventor after: Li Xinjin, Huai Dong, Zhu Rulong, Mao Jianyang, Chen Qingsong, Zhu Huaihuan, Wu Zhijian, Li Yuelun Inventor before: Chu Rulong Inventor before: Wu Zhijian Inventor before: Li Xin |
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