CN201976255U - 3G wireless area center with radio remote system for realizing coverage - Google Patents
3G wireless area center with radio remote system for realizing coverage Download PDFInfo
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- CN201976255U CN201976255U CN2011200253045U CN201120025304U CN201976255U CN 201976255 U CN201976255 U CN 201976255U CN 2011200253045 U CN2011200253045 U CN 2011200253045U CN 201120025304 U CN201120025304 U CN 201120025304U CN 201976255 U CN201976255 U CN 201976255U
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- stretch system
- bbu
- base station
- frequency stretch
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Abstract
The utility model discloses a 3G (The 3rd Generation Telecommunication) wireless area center with a radio remote system for realizing coverage. The 3G wireless area center completes networking in two ways: the first way is that BBUs (base band unit) and RRUs (radio remote unit) are sequentially connected, and the second way is that NodeB base stations and the radio remote system are sequentially connected, wherein, the radio remote system comprises near-end machine DAUs (Data Adapter Unit) for coupling base station signals and far-end machine DRUs (digital remote unit) for transmitting optical fibers and amplifying radio signals; and the BBUs in the first way, the NodeB base stations in the second way and the DAUs are centrally placed in a central machine room, and the RRUs and the DRUs are dispersed in target residential areas for covering the target residential areas. In the utility model, carrier resources are centrally placed in the central machine room, both machine rooms and related resources are not required, so that both the network construction cost and the operation cost are reduced, the construction period is shortened and the work difficulty is reduced, meanwhile, extra air conditioners are not required, so the energy consumption of air conditioners is reduced to the utmost extent.
Description
Technical field
The utility model relates to the networking technology of 3G (Third Generation) Moblie network insertion net, and particularly a kind of radio frequency stretch system is realized the 3G radio block center of covering.
Background technology
Mostly the construction of 3G (Third Generation) Moblie network at present is continuity and uses for reference the networking mode of second generation mobile communication, but because 3G network is operated in the 2000MHz frequency range, the propagation loss of electric wave is bigger than 2G frequency range, the signal penetration capacity than 2G frequency range a little less than, and stronger signal strength signal intensity and the signal quality of the high-speed data service of 3G needs, so existing networking mode can not well satisfy the requirement of using.
Fig. 1 has provided the structural representation that carries out the NodeB networking according to the networking mode of second generation mobile communication, and this networking mode adopts in the outdoor site, a plurality of grand station of building respectively, realizes the outdoor network coverage.Fig. 2 has provided with this kind networking mode and has realized the equipment and the auxiliary facility schematic diagram that cover.From Fig. 1 and Fig. 2 as can be seen, each base station node B is needed a supporting machine room, and all need to be provided with air-conditioning, supervisory control system etc. in each machine room, adopt this networking mode to have following shortcoming: the auxiliary facility of building a station is many, networking cost height, and the construction period is long, the carrier frequency resource utilance is low, property coordination resistance is big, and it is high that energy consumption reaches operation maintenance cost greatly, and these have had a strong impact on the quality and the speed of third generation networking.
Application number is that 200820200635.6 Chinese utility model patent discloses a kind of radio frequency stretch system and realizes the radio block center that covers, and this patent is to adopt to concentrate the mode of placing to reach the purpose of necessary resources such as saving machine room, transmission in machine room.Difference is that above-mentioned patent is at the GSM standard among the 2G, and can not realize the wireless coverage at WCDMA, CDMA20000 and three kinds of 3G standards of TD-SCDMA.
Therefore, for solving the problem that existing 3G network exists in building, need provide a kind of small investment, simple in structure and have a networking mode of good covering quality and quick construction speed.
The utility model content
Main purpose of the present utility model is to overcome the shortcoming of prior art with not enough, provide a kind of radio frequency stretch system to realize the 3G radio block center that covers, it has the advantage that simple in structure, small investment and networking mode have good covering quality and quick construction speed.
The purpose of this utility model realizes by following technical scheme: radio frequency stretch system is realized the 3G radio block center of covering, comprise two kinds of networking modes, a kind of is BBU (Base Band Unit, baseband processing unit) and RRU (Radio Remote Unit, radio frequency remoto module) connects realization successively, another kind is that the NodeB base station is connected successively with radio frequency stretch system and realizes, wherein radio frequency stretch system is made up of near-end machine DAU, the Transmission Fibers of coupling base station signal and the remote termination DRU that amplifies radiofrequency signal; BBU in described first kind of mode or the Node B base station in the second way and DAU concentrate and are positioned in the central machine room, and RRU and DRU are dispersed in the Target cell, are used for the covering to Target cell.
The connected mode of the connected mode of described BBU and RRU, Node B base station and radio frequency stretch system comprises that independently employing is perhaps adopted any permutation and combination method of above-mentioned two kinds of networking modes a bit to the star-like networking mode of multiple spot or the daisy chain networking mode of point-to-point chain.
When adopting above-mentioned any networking mode, each remote termination DRU is connected with corresponding BBU or near-end machine DAU by main road optical fiber respectively in each RRU or the radio frequency stretch system, and each final stage RRU or remote termination DRU form articulating by standby optical fiber with corresponding BBU or near-end machine.
Described BBU or Node B base station all are connected with outside by RNC (Radio Network Controller, radio network controller).RNC is a key network element of 3G network, and it is the part of Access Network, is used to provide mobile management, call treatment, url management and handover mechanism.
The utility model compared with prior art has following advantage and beneficial effect:
1, the utility model can concentrate on carrier frequency resource the central machine room placement, adopt RRU or radio frequency stretch system remote termination to realize the covering of radio block center, and RRU or remote termination installation does not need machine room, do not need necessary resources.Therefore, a plurality of sites and supporting demand become one, and construction cost significantly reduces, and corresponding later stage operation maintenance cost also significantly reduces.Need build respectively a plurality of sites compared to existing networking mode, need to drop into a plurality of sites resource, a plurality of necessary resources, thereby make site and related investment accounting very big, the utility model can be saved related investments such as machine room site, transmission, power supply in a large number, saves network construction cost and operation maintenance cost significantly.
2, the utility model is when saving machine room and related investment, by being concentrated, places BBU, base-band resource is shared flexibly, dynamic dispatching, effectively promote base-band resource and port resource utilance, can save more main equipment investment, RRU or DRU press close to the installation of antenna input port simultaneously, can promote the area coverage at single station, reduce website quantity, thereby reduce the networking investment.
3, in networking and maintenance process, property coordination accounting in the engineering construction cycle is bigger, also is the working difficult point in the engineering construction.Adopt a plurality of sites resource, the property coordination committee expends the plenty of time and strengthens work difficulty.Networking mode described in the utility model only needs that a central machine room is done property and coordinates, and consumed time and work difficulty all reduce greatly.In addition, because Node B base station and radio frequency stretch system DAU etc. place at central machine room, the installation of these equipment, the time of opening, transferring survey and operation maintenance and difficulty all significantly reduce, and 1/3 construction period, the significantly work difficulty of Jiang Diing have been saved in the single station of existing networking mode.
4, in the utility model Node B concentrate is placed, on the one hand can the existing transmission of Sharing Center's machine room, corollary equipment such as power supply, improve the utilance of corollary equipment, reduce corollary equipment quantity, cut down the consumption of energy; On the other hand, can make full use of the air-conditioning equipment of central machine room.73.7% of existing networking mode machine room energy consumption comes from air-conditioning, and RRU or radio frequency stretch system DRU adopt natural heat dissipation, need not additionally to lay air-conditioning, reduce air conditioning energy consumption to greatest extent.To compare the synthesis energy saving effect obvious with existing networking side, is a kind of green networking pattern of low energy consumption.
Description of drawings
Fig. 1 is the networking structure schematic diagram of existing NodeB;
Fig. 2 is that existing networking mode needs the corollary equipment schematic diagram;
Fig. 3 is the radio block center networking mode that BBU+RRU realizes in the utility model;
Fig. 4 is the radio block center networking mode that Node B base station in the utility model+radio frequency stretch system is realized;
Fig. 5 is overlay device of the present utility model and auxiliary facility schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
As shown in Figure 3, radio frequency stretch system is realized the 3G radio block center of covering, is connected realization by BBU successively with RRU, and described BBU concentrates and is positioned in the central machine room, and RRU is dispersed in the Target cell, is used for the covering to Target cell.Adopting BBU to concentrate the mode of placing to share on base-band resource, reach higher carrier frequency resource utilance, is a kind of form of scheduling of resource very flexibly.
The connected mode of described BBU and RRU adopts any star-like networking mode to multiple spot, also can adopt the daisy chain networking mode of point-to-point chain certainly, perhaps adopts any permutation and combination method of above-mentioned two kinds of networking modes.
When adopting above-mentioned networking mode, each RRU is connected with corresponding BBU by main road optical fiber respectively, and each final stage RRU is by standby optical fiber and the articulating of BBU formation accordingly.
Described BBU is connected with outside by RNC.
As shown in Figure 5, present embodiment is simple in structure, and the power-supply system that only need be used to power compared to prior art gets final product with the optical fiber that is used for being connected with BBU, does not need additionally to lay air-conditioning, does not need a plurality of sites resource, can reduce network consumption and reduction construction cost.
Embodiment 2
As shown in Figure 4, radio frequency stretch system is realized the 3G radio block center of covering, be that Node B base station is connected successively with radio frequency stretch system and realizes, wherein radio frequency stretch system is made up of near-end machine DAU, the Transmission Fibers of coupling base station signal and the remote termination DRU that amplifies radiofrequency signal; Described Node B base station and DAU concentrate and are positioned in the central machine room, and DRU is dispersed in the Target cell, is used for the covering to Target cell.
The connected mode of described Node B base station and radio frequency stretch system independently adopts any star-like networking mode to multiple spot, also can comprise the daisy chain networking mode of point-to-point chain certainly, perhaps adopts any permutation and combination method of above-mentioned two kinds of networking modes.
When adopting above-mentioned networking mode, each remote termination DRU is connected with corresponding near-end machine DAU by main road optical fiber respectively in each radio frequency stretch system, and each final stage remote termination DRU is by standby optical fiber and the articulating of near-end machine formation accordingly.
Described Node B base station is connected with outside by RNC.
As shown in Figure 5, present embodiment is simple in structure, and the power-supply system that only need be used to power compared to prior art gets final product with the optical fiber that is used for being connected with near-end machine DAU, does not need additionally to lay air-conditioning, do not need a plurality of sites resource, can reduce network consumption and reduction construction cost.
The foregoing description is the utility model preferred implementation; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (4)
1. radio frequency stretch system is realized the 3G radio block center of covering, it is characterized in that, comprise two kinds of networking modes, a kind of BBU of being is connected realization successively with RRU, another kind is that Node B base station is connected successively with radio frequency stretch system and realizes, wherein radio frequency stretch system is made up of near-end machine DAU, the Transmission Fibers of coupling base station signal and the remote termination DRU that amplifies radiofrequency signal; BBU in described first kind of mode and the Node B base station in the second way and DAU concentrate and are positioned in the central machine room, and RRU and DRU are dispersed in the Target cell, are used for the covering to Target cell.
2. radio frequency stretch system according to claim 1 is realized the 3G radio block center of covering, it is characterized in that, the connected mode of the connected mode of described BBU and RRU, Node B base station and radio frequency stretch system comprises that independently employing is perhaps adopted any permutation and combination method of above-mentioned two kinds of networking modes a bit to the star-like networking mode of multiple spot or the daisy chain networking mode of point-to-point chain.
3. radio frequency stretch system according to claim 1 is realized the 3G radio block center of covering, it is characterized in that, when adopting above-mentioned any networking mode, each remote termination DRU is connected with corresponding BBU or near-end machine DAU by main road optical fiber respectively in each RRU or the radio frequency stretch system, and each final stage RRU or remote termination DRU form articulating by standby optical fiber with corresponding BBU or near-end machine.
4. radio frequency stretch system according to claim 1 is realized the 3G radio block center of covering, it is characterized in that, described BBU or Node B base station all are connected with outside by RNC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200253045U CN201976255U (en) | 2011-01-26 | 2011-01-26 | 3G wireless area center with radio remote system for realizing coverage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200253045U CN201976255U (en) | 2011-01-26 | 2011-01-26 | 3G wireless area center with radio remote system for realizing coverage |
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| CN201976255U true CN201976255U (en) | 2011-09-14 |
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| CN2011200253045U Expired - Fee Related CN201976255U (en) | 2011-01-26 | 2011-01-26 | 3G wireless area center with radio remote system for realizing coverage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304419A (en) * | 2016-08-15 | 2017-01-04 | 上海交通大学 | The wireless forward pass system of digital optical transmission based on multi-core fiber |
| CN117279109A (en) * | 2023-11-21 | 2023-12-22 | 深圳市佳贤通信科技股份有限公司 | Downlink dispatching system and method based on family base station networking |
-
2011
- 2011-01-26 CN CN2011200253045U patent/CN201976255U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304419A (en) * | 2016-08-15 | 2017-01-04 | 上海交通大学 | The wireless forward pass system of digital optical transmission based on multi-core fiber |
| CN106304419B (en) * | 2016-08-15 | 2020-06-12 | 上海交通大学 | Wireless forward transmission system for digital optical transmission based on multi-core optical fiber |
| CN117279109A (en) * | 2023-11-21 | 2023-12-22 | 深圳市佳贤通信科技股份有限公司 | Downlink dispatching system and method based on family base station networking |
| CN117279109B (en) * | 2023-11-21 | 2024-03-19 | 深圳市佳贤通信科技股份有限公司 | Downlink dispatching system and method based on family base station networking |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20160126 |
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| EXPY | Termination of patent right or utility model |