CN105848170A - Indoor distribution system - Google Patents
Indoor distribution system Download PDFInfo
- Publication number
- CN105848170A CN105848170A CN201610414153.XA CN201610414153A CN105848170A CN 105848170 A CN105848170 A CN 105848170A CN 201610414153 A CN201610414153 A CN 201610414153A CN 105848170 A CN105848170 A CN 105848170A
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- China
- Prior art keywords
- light
- end unit
- expanding element
- optical
- base station
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
- H04W16/20—Network planning tools for indoor coverage or short range network deployment
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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
- H04B10/25753—Distribution optical network, e.g. between a base station and a plurality of remote units
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses an indoor distribution system comprising base station near-end units which integrate 2G/3G/4G systems together. An optical distribution unit comprises an access optical port and an output optical port. The access optical port is accessed to the 2G/3G/4G base station near-end units through transmission optical cables or tail fibers. The output optical port of the optical distribution unit is connected with extension units through the optical cables directly. Each extension unit comprises an access optical port, a cascade optical port and an output extension optical port. The access optical ports of the extension units are connected with the optical distribution unit or connected with the cascaded extension units through the optical cables. The output extension optical ports are connected with integrated far-end units through the optical cables or network cables directly. According to the indoor distribution system, cell splitting or merging is simple, and modification can be completed through background software configuration. Networking is quite flexible, and cell merging/splitting can be performed through adjustment according to the scene traffic tide demands anytime.
Description
Technical field
The present invention relates to moving communicating field, especially relate to indoor distributed system.
Background technology
Along with the development of mobile communications network, mobile network's scale of mobile communication carrier and overburden depth more
Come the biggest.Effectively supplementing as outdoor base station, and the degree of depth of indoor signal is covered, indoor distribution system
The construction of system is carried out the swiftest and the most violent at present, and some metropolitan quantity has exceeded the quantity of outdoor base station.This
It is primarily due to when TD-LTE covers for dense city, due to site construction condition, network planning network optimization ability
Etc. the restriction of factor, cause current TD-LTE outdoor macro base station to cover and there is a lot of blind spot.Corresponding thereto,
Even if covering preferable region at signal, when traffic needs is higher, it is also desirable to increase frequency or website
Quantity, now will face high construction cost and higher addressing difficulty.
Predicting according to associated mechanisms, mobile broadband data service will increase by more than 10 times at the five-year, not
Come 10 years to increase by more than 30 times.In order to preferably solve the pressure that broadband data service brings, TD-LTE adopts
By heterogeneous network concept, be defined as the base station equipment composition of various standard, various power grade multisystem,
Multi-level network structure.Indoor distributed system is the most important means realizing heterogeneous network Destination Network Structure.
On the one hand it is the important means solving TD-LTE network capacity, and another aspect is also the most real and compels
The networking means cut.At present, the mode that indoor distributed system is the most frequently used is exactly that feeder line, merit are divided
Device, bonder add traditional compartment system that antenna is constituted.This mode is applied for many years, but should in reality
But obvious several shortcoming is had, as shown in table 1 in:
Table 1:
From the point of view of above statistics, tradition indoor distributed system is primarily present the problem of following several respects, without
Method meets network competition growth requirement:
1. construction reformation difficulty is divided in existing network room, and original device aging, fault detect are difficult in maintenance, it is difficult to promote
LTE network speed, inconvenience dilatation evolution.Can only be by strengthening management in design and operation, during strengthening construction maintenance
Inspection to original device is tested, and reduces the impact on network quality, it is impossible to fundamentally solve indoor asking
Topic.
2. line loss is big: tradition indoor distributed system uses substantial amounts of feeder line, and its loss is relatively big, the biggest portion
The power dissipation divided is on feeder line, and efficiency of transmission is low.And it is off quality to there is part of devices, affects room and divide
Coverage effect；
3. must develop new be prone to hidden, installation and deployment are simple and lower-cost product, solve important field
In one's power be difficult to build branch, room covering problem.
Summary of the invention
It is an object of the invention to provide indoor distributed system, this system is on the basis of conventional chamber is divided, it is possible to very
Good carries out degree of depth covering and capacity boost.
It is an object of the invention to be achieved through the following technical solutions:
Indoor distributed system, includes base station near-end unit, light distribution unit, expanding element and integration remote
End unit, described base station near-end unit be 2G 3G the base station proximal device of 4G system, base station near-end unit
By the 2G 3G 4G system integration together, described light distribution unit comprises and connects light inlet and defeated light-emitting window, connects
Light inlet directly by transmission cable or tail optical fiber access 2G 3G 4G base station near-end unit, the most each light mouth
All support 2G 3G each system access of 4G；It is single that the defeated light-emitting window of light distribution unit directly connects extension by optical cable
Unit；Comprising in expanding element and connect light inlet, cascade light mouth and output extension light mouth, wherein, in expanding element
Connect light inlet be by optical cable connect light distribution unit or link cascade expanding element, output extension light
Mouth is directly by optical cable or netting twine connecting integration far-end unit.
Described integrated far-end unit is integration far-end unit and covers the integration that antenna integrates
Equipment, antenna integrated for orientation tabular dual polarized antenna.
Feeder line interface is had by feeder line interface external room divided antenna on described integrated far-end unit.
Described integrated far-end unit is the modularized design of multimode multi-frequency, supports that GSM, LTE and WIFI are same
Time access, there is 2x100mW MIMO function, LTE supports 20MHz+20MHz band networking.
Described base station near-end unit is furnished with MT-RJ interface, upwards enters mobile core network through transmission network
Management system, connects the MT-RJ interface of light distribution unit down through optical cable or tail optical fiber.
The described light inlet interface type that connects is MT-RJ interface；Defeated light-emitting window interface type is SC interface.
The coffret type of described expanding element is SC interface.
A described light distribution unit supports that 6 links connect expanding element；Light distribution unit and extension are single
Star-like networking and expanding element cascade system networking is supported between unit；One link of light distribution unit supports 4
Level expanding element cascade.
Advantage for present invention with effect is:
Indoor distributed system of the present invention, is that a kind of good degree of depth covers and the solution of capacity boost.This
Invention indoor distributed system is on the basis of Femto, PicoCell, and evolution has gone out self adaptation, Self management
Function, merged MIMO function simultaneously, achieved the function of TD-LTE multichannel transmitting-receiving more easily,
Embody the network advantage of TD-LTE.Indoor distributed system cell splitting of the present invention or merge relatively simple, only
Amendment can be completed by daemon software configuration.Networking is very flexible, can according to scene traffic tide demand with
Time adjust carry out cell combining/division.Again it is suitable for complicated and diversified covering scene, the most integrated, little
The design of type reduces installation difficulty and base station cost.In TD-LTE Large scale construction instantly, in tradition
On the basis of construction mode is divided in macro station, room, indoor distributed system of the present invention is highly effective, strong, feasible
Supplementary construction mode.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the present invention；
Fig. 2 is the integrated far-end unit schematic diagram of the present invention；
Fig. 3 is the integrated far-end unit stereogram of the present invention.
Detailed description of the invention
As it is shown in figure 1, indoor distributed system of the present invention, based on mobile communication new technique, it includes: base
Stand near-end unit, light distribution unit, expanding element and integration far-end unit.Described base station near-end unit
Refer to 2G 3G the base station proximal device of 4G system, base station near-end unit by 2G 3G the 4G system integration exist
Together, base station near-end unit is furnished with MT-RJ interface, upwards enters mobile core network management through transmission network
System, connects the MT-RJ interface of light distribution unit down through optical cable or tail optical fiber.The output of light distribution unit
Light mouth directly connects the SC interface of expanding element by optical cable.Wherein, a light distribution unit can support 6
Bar link connects expanding element.Star-like networking and expanding element level is supported between light distribution unit and expanding element
Connection mode networking.One link of light distribution unit supports 4 grades of expanding element cascades.Expanding element comprises
Connecing light inlet, cascade light mouth and output extension light mouth, output extension light mouth is directly connected by optical cable or netting twine
Integration far-end unit.
Integration far-end unit is divided into 2G processing module, 3G processing module, 4G processing module, WLAN
Processing module and Anneta module, as shown in Figure 2,3.Wherein, 2G 3G WLAN processing module one be to extend
The signal of unit transmission is by filtering, and signal processing passes through antenna transmission to user after amplifying；Two is by antenna
The signal message received is by after signal processing, by fiber-optic transfer to expanding element.4G processing module
Main Function is to realize MIMO function, and signal is passed through filtering by 4G processing module, at up-downgoing segregant module
After reason, up dual-antenna reception user profile, descending double antenna sends base station signal, by 4G processing module
Realize double MIMO function sending out double receipts (2T2R).
Present invention indoor distributed system based on mobile communication new technique signal processing:
Downlink: then the signal of base station near-end unit is linked into system by light distribution unit is carried out signal
Digital processing is packed, and is transmitted through the fiber to expanding element；Light distribution unit is transmitted by expanding element
After signal processes, by optical fiber, it is transferred to integration far-end unit；Integration far-end unit will extension
After the signal processing of unit transmission amplifies, by antenna, it is transferred to user.
Up-link: after integration far-end unit receives the information of user, is believed by integration far-end unit
Number process after, by fiber-optic transfer to expanding element；Expanding element is by all integration far-end unit transmission
After signal is digitized processing packing, it is transmitted through the fiber to light distribution unit；Light distribution unit will extension
After the digital signal packing reduction of unit, it is transmitted back to base station near-end unit.
Indoor distributed system of the present invention various scene coverage effect is as follows:
(1) high business scenario covers result: depletion region covering radius reaches 30 meters；Wear one and block up 10dB body of wall,
Covering radius reaches 10 meters；Deployment facility need to be distinguished in Hou Qiang both sides when wearing the thick wall of 20dB.
(2) general service scene covers result: depletion region covering radius reaches 90 meters；Wear one and block up 10dB wall
Body, covering radius reaches 30 meters；Wearing 20dB thickness wall, covering radius reaches 10 meters.
(3) low business scenario (parking lot) covers result: depletion region covering radius is up to 500 meters；Wear
One blocks up 10dB wall, and covering radius reaches 150 meters；Wear 20dB Hou Qiang overlay area covering radius and reach 50 meters.
Indoor distributed system general user of the present invention supports situation such as table 2:
Table 2:
To capacity requirement relatively large scene, need to consider that single community user number limits, community and antenna point position are carried out
Update and adjust.
The characteristic and advantage of indoor distributed system of the present invention；
1. system structure is simple, simplifies room separation structure, disposes quick and convenient, saves the construction period.No longer
Need the big metering device that conventional chamber is divided, solve device quality, engineering construction quality affect in-door covering application
The problem of quality.
2. with grand net common network pipe, before solving indoor distributed system cannot the problem of network management monitoring, Mei Geshe
Standby state is managed concentratedly by webmaster, very clear to room subnetwork situation, it is simple to troubleshooting, improves
Network optimization efficiency.Indoor and outdoor network cooperating optimizes, and promotes overall network quality.
3. supporting LTE MIMO, double-current signal is stable.With conventional chamber split-phase ratio, the total throughput in community can be made to carry
Rising 100%, edge customer speed promotes more than 40%.
4. supporting carrier aggregation, flank speed is up to 300Mbps, smooth upgrade to LTE-A.
5. output all can individually adjust, it is achieved accurately covers, and reduces interference.
6. community can directly be merged by remote software or be divided, simple to operate, it is not necessary to divide room and be adjusted.
Claims (8)
1. indoor distributed system, it is characterized in that: include base station near-end unit, light distribution unit, expanding element and integration far-end unit, described base station near-end unit be 2G 3G the base station proximal device of 4G system, base station near-end unit by 2G 3G the 4G system integration together, described light distribution unit comprises and connects light inlet and defeated light-emitting window, connecing light inlet and directly access 2G 3G 4G base station near-end unit by transmission cable or tail optical fiber, the most each light mouth all supports the 2G 3G each system access of 4G；The defeated light-emitting window of light distribution unit directly connects expanding element by optical cable；Expanding element comprises and connects light inlet, cascade light mouth and output extension light mouth, wherein, the light inlet that connects in expanding element is to connect light distribution unit or the expanding element of link cascade by optical cable, and output extension light mouth is directly by optical cable or netting twine connecting integration far-end unit.
Indoor distributed system the most according to claim 1, it is characterised in that: described integrated far-end unit is integration far-end unit and covers the integration apparatus that antenna integrates, antenna integrated for orientation tabular dual polarized antenna.
Indoor distributed system the most according to claim 1, it is characterised in that: there is feeder line interface on described integrated far-end unit by feeder line interface external room divided antenna.
Indoor distributed system the most according to claim 1, it is characterized in that: described integrated far-end unit is the modularized design of multimode multi-frequency, support that GSM, LTE and WIFI are concurrently accessed, having 2x100mW MIMO function, LTE supports 20MHz+20MHz band networking.
Indoor distributed system the most according to claim 1, it is characterized in that: described base station near-end unit is furnished with MT-RJ interface, upwards enter mobile core network management system through transmission network, connect the MT-RJ interface of light distribution unit down through optical cable or tail optical fiber.
Indoor distributed system the most according to claim 1, it is characterised in that: the described light inlet interface type that connects is MT-RJ interface；Defeated light-emitting window interface type is SC interface.
Indoor distributed system the most according to claim 1, it is characterised in that: the coffret type of described expanding element is SC interface.
Indoor distributed system the most according to claim 1, it is characterised in that: a described light distribution unit supports that 6 links connect expanding element；Star-like networking and expanding element cascade system networking is supported between light distribution unit and expanding element；One link of light distribution unit supports 4 grades of expanding element cascades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610414153.XA CN105848170A (en) | 2016-06-13 | 2016-06-13 | Indoor distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610414153.XA CN105848170A (en) | 2016-06-13 | 2016-06-13 | Indoor distribution system |
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| CN105848170A true CN105848170A (en) | 2016-08-10 |
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| CN201610414153.XA Pending CN105848170A (en) | 2016-06-13 | 2016-06-13 | Indoor distribution system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107241741A (en) * | 2017-05-09 | 2017-10-10 | 江苏省邮电规划设计院有限责任公司 | A kind of TD LTE networks covering method |
| CN112751576A (en) * | 2020-12-31 | 2021-05-04 | 京信网络系统股份有限公司 | DAS (data-based System) expansion method and device, DAS, communication equipment and medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101365243A (en) * | 2008-09-27 | 2009-02-11 | 中国移动通信集团福建有限公司 | Indoor covering path combining technique for TD-SCDMA, WLAN and GSM network |
| CN202231868U (en) * | 2011-09-29 | 2012-05-23 | 四川邮科通信技术有限公司 | Multi-system digital enclave compressing and dispreading system |
| CN202841549U (en) * | 2012-09-18 | 2013-03-27 | 京信通信系统（中国）有限公司 | Communication equipment supporting multiple services and active antenna terminal system |
| CN203504570U (en) * | 2013-10-10 | 2014-03-26 | 南京云恒瑞通网络科技有限责任公司 | Wireless-coverage active light distribution system |
-
2016
- 2016-06-13 CN CN201610414153.XA patent/CN105848170A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101365243A (en) * | 2008-09-27 | 2009-02-11 | 中国移动通信集团福建有限公司 | Indoor covering path combining technique for TD-SCDMA, WLAN and GSM network |
| CN202231868U (en) * | 2011-09-29 | 2012-05-23 | 四川邮科通信技术有限公司 | Multi-system digital enclave compressing and dispreading system |
| CN202841549U (en) * | 2012-09-18 | 2013-03-27 | 京信通信系统（中国）有限公司 | Communication equipment supporting multiple services and active antenna terminal system |
| CN203504570U (en) * | 2013-10-10 | 2014-03-26 | 南京云恒瑞通网络科技有限责任公司 | Wireless-coverage active light distribution system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107241741A (en) * | 2017-05-09 | 2017-10-10 | 江苏省邮电规划设计院有限责任公司 | A kind of TD LTE networks covering method |
| CN112751576A (en) * | 2020-12-31 | 2021-05-04 | 京信网络系统股份有限公司 | DAS (data-based System) expansion method and device, DAS, communication equipment and medium |
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Application publication date: 20160810 |
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