CN204392257U - The schedulable digital optical fiber direct station of a kind of capacity - Google Patents
The schedulable digital optical fiber direct station of a kind of capacity Download PDFInfo
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- CN204392257U CN204392257U CN201420860691.8U CN201420860691U CN204392257U CN 204392257 U CN204392257 U CN 204392257U CN 201420860691 U CN201420860691 U CN 201420860691U CN 204392257 U CN204392257 U CN 204392257U
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Abstract
The utility model relates to the schedulable digital optical fiber direct station of a kind of capacity, comprise access unit and capping unit, described access unit is coupled with base station feed line, access unit is provided with independently radio-frequency channel, some roads, for accessing the base station signal of multiple sector simultaneously, the signal of each sector is carried out digitlization employing, and packing is put into optical fiber and is transmitted together; Described capping unit is provided with a radio-frequency channel, road, and cover for supporting the base station signal of a sector to amplify, this sector is one of them sector optional; Transport communication is carried out by digital fiber between described access unit and capping unit.The beneficial effects of the utility model are: can dispatch in overlay area power system capacity according to telephone traffic situation at any time, thus successfully manage " tidal phenomena ", solve network congestion, the thorny problem such as cannot to access.
Description
Technical field
The utility model belongs to communication technical field, particularly relates to the schedulable digital optical fiber direct station of a kind of capacity.
Background technology
In the life of modern metropolitan cities, operating time people assemble in a large number in CBD region, After Hours migrate in a large number to residential block again, i.e. " tidal effect ".This phenomenon has caused the flowing of telephone traffic in mobile communication system, makes hot spot region occur large burst traffic in particular moment, causes network congestion, cannot access; Capacity planning for the networking initial stage also brings certain difficulty.And in reply the type region while Bulk Call flowing, realize reducing networking cost, promote operation core competitiveness, become one difficult problems of pendulum in face of operator.
The repeater that tradition coverage mode adopts only possesses covering function and can not provide capacity, so for the covering scene with " tidal phenomena ", just need operator two all a large amount of building base station and covered by repeater of point, cause networking cost very high, utilance is not high.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art existence, and provides a kind of capacity schedulable digital optical fiber direct station.
The purpose of this utility model has been come by following technical solution.The schedulable digital optical fiber direct station of this capacity, comprise access unit and capping unit, described access unit is coupled with base station feed line, access unit is provided with multichannel independently radio-frequency channel, for accessing the base station signal of multiple sector simultaneously, the signal of each sector is carried out digitlization employing, and packing is put into optical fiber and is transmitted together; Described capping unit is provided with a radio-frequency channel, road, and cover for supporting the base station signal of a sector to amplify, this sector is one of them sector optional; Transport communication is carried out by digital fiber between described access unit and capping unit.
The down link of described radio-frequency channel is made up of filter unit, gain adjusting unit and mixing unit, the downstream signal of sector crosses if sampling via after independently radio-frequency channel mixing and filtering by independently ADC, send into FPGA and carry out the Digital Signal Processing such as DDC and framing, after last also string and electro-optic conversion, mail to each capping unit by optical fiber.
The up link of described radio-frequency channel is made up of modulating unit, gain adjusting unit and filter unit, the upward signal of sector is delivered to access unit again by photoelectricity and serioparallel exchange by each capping unit by optical fiber, undertaken separating frame and the digital uplink signal extracting each capping unit by FPGA, FPGA directly carries out numeric field addition to the upward signal of each capping unit, then after the digital processings such as DUC, give DAC simultaneously and be converted to corresponding analog signal, finally deliver to the signal that radio-frequency channel output gain can independently adjust.
Described capping unit receives the upward signal of mobile phone by antenna transmission downstream signal simultaneously.
Described capping unit receives data by optical fiber from described access unit, and FPGA separates frame and extracts independently downstream digital signal, and mobile phone upward signal transfers digital signal to by ADC and returns upper level capping unit by optical fiber transmission behind radio-frequency channel.
Described capping unit also arranges cascade capping unit, and this capping unit is connected with access unit after being directly connected with access unit or being first connected with upper level capping unit again.
Described access unit also arranges cascade access unit, and each access unit is provided with four for connecting the optical fiber interface of next stage access unit.
The radio-frequency channel of described access unit is provided with independently radio-frequency channel, 4-12 road.
The beneficial effects of the utility model are: can dispatch in overlay area power system capacity according to telephone traffic situation at any time, thus successfully manage " tidal phenomena ", solve network congestion, the thorny problem such as cannot to access.
Accompanying drawing explanation
Fig. 1 is direct discharging station block diagram of the present utility model.
Fig. 2 is networking mode block diagram of the present utility model.
Fig. 3 is typical apply block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, detailed introduction is done to the utility model: as shown in Figure 1, the utility model comprises access unit and capping unit, wherein, described access unit and capping unit carry out transport communication by digital fiber, described access unit can access the base station signal of multiple sector simultaneously, the signal of each sector is carried out digitlization employing, and packing is put into optical fiber and is transmitted together.Described capping unit is only supported that the base station signal of a sector amplifies and is covered, but it can select arbitrarily one of them sector.Wherein, described access unit is provided with multichannel independently radio-frequency channel, and described capping unit is provided with a radio-frequency channel, road.
In the present embodiment, as shown in Figure 1, access unit is independently made up of radio-frequency channel 4 tunnels, and capping unit only has 1 radio-frequency channel, tunnel.Access unit is coupled with base station feed line, and it has independently radio-frequency channel, 4 tunnels, so can connect 4 base station sections.Radio-frequency channel down link is by filter unit, and gain adjusting unit, mixing unit forms.4 sectors, the 4 road downstream signals of coming via after 4 independently radio-frequency channel mixing and filtering by 4 tunnels independently ADC cross if sampling, send into FPGA and carry out the Digital Signal Processing such as DDC and framing, mail to each capping unit by optical fiber after last also string and electro-optic conversion, in framing process, wherein place the digital signal of 4 road down going channels by the position defined in agreement.Radio-frequency channel up link is by modulating unit, and gain adjusting unit, filter unit forms.Upward signal is delivered to access unit again by photoelectricity and serioparallel exchange by each capping unit by optical fiber, undertaken separating frame and the digital uplink signal extracting each capping unit by FPGA, FPGA directly carries out numeric field addition to the upward signal of each capping unit, then after the digital processings such as DUC, 4 parts are copied, give 4 road DAC simultaneously and be converted to corresponding analog signal, finally deliver to radio-frequency channel and export the signal that 4 tunnel gains can independently adjust.Because each sector of base station is all have filter unit, the up channel that only meeting demodulation institute configurating downlink channel is corresponding simultaneously, so the upward signal of each capping unit gives base station after can directly merging.
Capping unit receives the upward signal of mobile phone by antenna transmission downstream signal simultaneously.It only has 1 radio-frequency channel, tunnel, and receive data by optical fiber from access unit or upper level capping unit, FPGA separates frame and extracts 4 tunnels independently downstream digital signal, and concrete which downstream signal of output is converted to analog signal to DAC and is determined by MCU monitoring unit.Mobile phone upward signal transfers digital signal to by ADC and returns upper level capping unit or access unit by optical fiber transmission behind radio-frequency channel.
As shown in Figure 2, this digital optical fiber direct station supports the networking mode of star-like, chain and mixing, can select different networking modes in practical application according to scene.In order to support networking mode flexibly, capping unit needs intact being delivered in next stage capping unit downstream signal to go while receiving the downstream signal of coming in upper level capping unit optical fiber; In like manner its needs the upward signal of the upward signal received from next stage capping unit and this capping unit to merge to be delivered to upper level capping unit later.
In order to expand the base station section quantity of access, access unit can arrange cascade access unit, and this cascade access unit is the access unit of next stage or upper level one by one, and access unit has 4 optical fiber interfaces for connecting next stage access unit.
Described capping unit also arranges cascade capping unit, this cascade capping unit is the capping unit of next stage or upper level one by one, capping unit can be directly connected to access unit, is connected to access unit after also can being first connected to upper level capping unit.
As shown in Figure 3, operator adopts the digital optical fiber direct station in the utility model, each sector of base station is linked into the radio frequency interface in access unit corresponding to each passage respectively, multiple capping unit is adopted to cover the required region A ~ F covered respectively, wherein A ~ C overlay area belongs to office building, daytime, traffic carrying capacity was large, and evening, traffic carrying capacity was few; D ~ F overlay area belongs to community, and daytime, traffic carrying capacity was few, and evening, traffic carrying capacity was large.Selected by the sector arranging each capping unit, can realize when daytime, by S1 overlay area, sector A, S2 overlay area, sector B, S3 overlay area, sector C, S4 overlay area, sector D ~ F; When evening, by S1 overlay area, sector A ~ C, S2 overlay area, sector E, S3 overlay area, sector F, S4 overlay area, sector D.If do not adopt capacity scheduling in this covering scheme, then need configuration 6 sectors to realize covering, resource utilization is lower.Adopt the capacity scheduling scheme in the utility model, greatly reduce networking cost, realize the optimization of resource.
The utility model is not limited to above-mentioned execution mode; no matter do any change on its shape or material are formed; every employing structural design provided by the utility model, is all one distortion of the present utility model, all should thinks within the utility model protection range.
Claims (8)
1. the schedulable digital optical fiber direct station of capacity, it is characterized in that: comprise access unit and capping unit, described access unit is coupled with base station feed line, access unit is provided with multichannel independently radio-frequency channel, for accessing the base station signal of multiple sector simultaneously, the signal of each sector is carried out digitlization employing, and packing is put into optical fiber and is transmitted together; Described capping unit is provided with a radio-frequency channel, road, and cover for supporting the base station signal of a sector to amplify, this sector is one of them sector optional; Transport communication is carried out by digital fiber between described access unit and capping unit.
2. the schedulable digital optical fiber direct station of capacity according to claim 1, it is characterized in that: the down link of described radio-frequency channel is made up of filter unit, gain adjusting unit and mixing unit, the downstream signal of sector crosses if sampling via after independently radio-frequency channel mixing and filtering by independently ADC, send into FPGA and carry out DDC and framing Digital Signal Processing, after last also string and electro-optic conversion, mail to each capping unit by optical fiber.
3. the schedulable digital optical fiber direct station of capacity according to claim 1, it is characterized in that: the up link of described radio-frequency channel is by modulating unit, gain adjusting unit and filter unit composition, the upward signal of sector is delivered to access unit again by photoelectricity and serioparallel exchange by each capping unit by optical fiber, undertaken separating frame and the digital uplink signal extracting each capping unit by FPGA, FPGA directly carries out numeric field addition to the upward signal of each capping unit, then after DUC digital processing, give DAC simultaneously and be converted to corresponding analog signal, finally deliver to the signal that radio-frequency channel output gain can independently adjust.
4. the schedulable digital optical fiber direct station of capacity according to claim 1, is characterized in that: described capping unit receives the upward signal of mobile phone by antenna transmission downstream signal simultaneously.
5. the schedulable digital optical fiber direct station of capacity according to claim 1, it is characterized in that: described capping unit receives data by optical fiber from described access unit, FPGA separates frame and extracts independently downstream digital signal, and mobile phone upward signal transfers digital signal to by ADC and returns upper level capping unit by optical fiber transmission behind radio-frequency channel.
6. the schedulable digital optical fiber direct station of capacity according to claim 1, it is characterized in that: described capping unit also arranges cascade capping unit, this capping unit is connected with access unit after being directly connected with access unit or being first connected with upper level capping unit again.
7. the schedulable digital optical fiber direct station of capacity according to claim 1, is characterized in that: described access unit also arranges cascade access unit, and each access unit is provided with four for connecting the optical fiber interface of next stage access unit.
8. the schedulable digital optical fiber direct station of capacity according to claim 1, is characterized in that: the radio-frequency channel of described access unit is provided with independently radio-frequency channel, 4-12 road.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420860691.8U CN204392257U (en) | 2014-12-30 | 2014-12-30 | The schedulable digital optical fiber direct station of a kind of capacity |
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| CN201420860691.8U CN204392257U (en) | 2014-12-30 | 2014-12-30 | The schedulable digital optical fiber direct station of a kind of capacity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942291A (en) * | 2017-10-12 | 2018-04-20 | 西安天和防务技术股份有限公司 | Intermediate frequency digital receiver, IF signal processing method |
| CN109618412A (en) * | 2019-01-23 | 2019-04-12 | 广州开信通讯系统有限公司 | New digital optical fiber distribution system towards 5G and the method that capacity scheduling is carried out to downlink, uplink using the system |
| CN110048777A (en) * | 2019-03-29 | 2019-07-23 | 广州开信通讯系统有限公司 | Digital light compartment system, capacity scheduling method and device |
-
2014
- 2014-12-30 CN CN201420860691.8U patent/CN204392257U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942291A (en) * | 2017-10-12 | 2018-04-20 | 西安天和防务技术股份有限公司 | Intermediate frequency digital receiver, IF signal processing method |
| CN109618412A (en) * | 2019-01-23 | 2019-04-12 | 广州开信通讯系统有限公司 | New digital optical fiber distribution system towards 5G and the method that capacity scheduling is carried out to downlink, uplink using the system |
| CN109618412B (en) * | 2019-01-23 | 2023-03-10 | 广州开信通讯系统有限公司 | Novel 5G-oriented digital optical fiber distribution system and method for carrying out capacity scheduling on downlink and uplink by using same |
| CN110048777A (en) * | 2019-03-29 | 2019-07-23 | 广州开信通讯系统有限公司 | Digital light compartment system, capacity scheduling method and device |
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