CN101446677A - Loosely shielded optical cable used for 3G network baseband remote technology - Google Patents
Loosely shielded optical cable used for 3G network baseband remote technology Download PDFInfo
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- CN101446677A CN101446677A CNA2008101366768A CN200810136676A CN101446677A CN 101446677 A CN101446677 A CN 101446677A CN A2008101366768 A CNA2008101366768 A CN A2008101366768A CN 200810136676 A CN200810136676 A CN 200810136676A CN 101446677 A CN101446677 A CN 101446677A
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- optical cable
- remote technology
- sleeve pipe
- network baseband
- loosely shielded
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Abstract
The invention discloses a loosely shielded optical cable used for 3G network baseband remote technology, comprising optical fiber which passes through and is arranged inside a loose tube; the loose tube is filled with fiber grease; the surrounding of the loose tube is covered with an aramid silk reinforced element; the aramid silk reinforced element is provided with an outer sheath externally; the optical cable is especially used for optical signal transmission from BBU/MU to RRU (remote radio unit). The optical cable replaces the traditional a plurality of feeder cables which are heavy and expensive, thereby simplifying construction and lowering cost.
Description
Technical field
The present invention relates to a kind of loosely shielded optical cable that is used for the 3G network baseband remote technology.
Background technology
In 3G network is built, power amplifier and low noise amplifier, radio-frequency (RF) transceiver even intermediate frequency unit need be zoomed out to the areal coverage away from the base station as remote end module, be called remote technology.Remote technology generally comprises that radio frequency zooms out, intermediate frequency zooms out, three kinds of baseband extensions etc., radio frequency zooms out the distance that zooms out that realizes with the intermediate frequency remote technology and is respectively about 100 meters and 300 meters, and baseband extension is a fiber optic stretch, and its transmission range can reach tens kilometers, can realize that long distance zooms out.The core of fiber optic stretch technology is that baseband portion of base station (BBU+MU equipment) and radio frequency part (RRU) are separated, and the two connects with optical cable.Radio frequency part can be placed on indoor, outdoor as remote end module, networking is very flexible.
In base station deployment, adopt the fiber optic stretch technology to bring huge benefit, mainly show the following aspects for mobile operator:
The first, reducing the construction costs.Employing optical fiber connects, and substitutes many traditional feeder lines, can reduce feeder loss, has reduced the power requirement of power amplifier, thereby has reduced the base station equipment cost.
The second, cut operating costs.By to the reasonable utilization of current BTS resource and the concentrated placement of base station baseband part, reduce the lease expenses of base station.
The 3rd, realize quick networking.Base band and radio frequency placed apart allows engineering construction have very strong dirigibility, accelerated the engineering construction progress, ensures that 3G network disposes fast.
The 4th, be convenient to network optimization adjustment.Remote and the quick deployment characteristics of optical fiber make the position adjustment of antenna no longer be subjected to the restriction of base station, can make up the standard cellular structure according to base station surrounding environment characteristics, have reduced the difficulty of the network optimization.
The 5th, rationally utilize optical network resource.Can rationally utilize existing optical network resource, newly-built fiber cable network also can be used for other miscellaneous service, as data access, video monitoring etc.
The 6th, solve indoor covering.Past generally with indoor covering separately consideration separately, can cover unified consideration with outdoor and indoor signal after the employing fiber optic stretch technology, effectively utilize Internet resources, has reduced cost, has improved network coverage quality.
Summary of the invention
The present invention seeks to: a kind of loosely shielded optical cable that is used for the 3G network baseband remote technology is provided, be specifically designed to BBU/MU (main website baseband control unit) to the optical signal transmission between the RRU (remote radio unit (RRU)), this optical cable has replaced traditional heaviness and many expensive feeder cables, simplify construction, reduce cost.
Technical scheme of the present invention is: a kind of loosely shielded optical cable that is used for the 3G network baseband remote technology, comprise the optical fiber that is located in the loose sleeve pipe, be filled with fine cream in the pine sleeve pipe, loose sleeve pipe periphery is coated with the aramid yarn reinforcing element, the oversheath of aramid yarn reinforcing element peripheral hardware.
The further technical scheme of the present invention is: a kind of loosely shielded optical cable that is used for the 3G network baseband remote technology, comprise the optical fiber that is located in the loose sleeve pipe, be filled with fine cream in the pine sleeve pipe, loose sleeve pipe periphery is coated with the aramid yarn reinforcing element, the oversheath of aramid yarn reinforcing element peripheral hardware; The outside surface of described optical fiber is coated with individual layer UV resin; Described oversheath adopts polyurethane material.
Advantage of the present invention is:
1, cable configuration compactness, external diameter is little, and is in light weight, and bending radius is little, is convenient to construction.
2, be suitable for vertical run from the antenna of cat head or roof to machine room.
3, adopt the loose tube fiber structure, optical fiber adopts individual layer UV resin-coating outward, makes optical fiber have good temperature, anti-bending and mechanical protection performance, and is more convenient for being connected with connector.
4, adopt loose nested structure, the degree of freedom of optical fiber in sleeve pipe is bigger, thereby makes the machinery of optical cable, temperature performance better.
5, the anti-element of opening of high strength aramid yarn is for optical cable provides better mechanical protection.
6, cable jacket adopts polyurethane material, has excellent weatherability, ageing-resistant performance, wearing quality and fire resistance, both can use in outdoor rugged surroundings, also can be in indoor use.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is a structural representation of the present invention.
Wherein: 1 loose sleeve pipe; 2 optical fiber; 3 fine cream; 4 aramid yarn reinforcing elements; 5 oversheaths.
Embodiment
Embodiment: as shown in Figure 1, a kind of loosely shielded optical cable that is used for the 3G network baseband remote technology, comprise the optical fiber 2 that is located in the loose sleeve pipe 1, the outside surface of optical fiber 2 is coated with individual layer UV resin, be filled with fine cream 3 in the pine sleeve pipe 1, pine sleeve pipe 1 periphery is coated with aramid yarn reinforcing element 4, the oversheath 5 of aramid yarn reinforcing element 4 peripheral hardwares, and oversheath 5 adopts polyurethane material.
Zooming out optical cable among the present invention, is to be specifically designed to BBU/MU (main website baseband control unit) to the optical signal transmission between the RRU (remote radio unit (RRU)), and this optical cable has replaced traditional heaviness and many expensive feeder cables, simplifies construction, reduces cost.
Dragging optical cable is as the transmission medium of fiber optic stretch technology, and its environment for use is very complicated, therefore has following characteristics:
1, cable configuration compactness, external diameter is little, and is in light weight, and bending radius is little, constructability.
2, be suitable for vertical run from the antenna of cat head or roof to machine room.
3, adopt the loose tube fiber structure, optical fiber adopts individual layer UV resin-coating outward, and optical fiber is had very Good temperature, anti-bending and mechanical protection performance, and be more convenient for being connected with connector.
4, adopt loose tube structure, the free degree of optical fiber in sleeve pipe is bigger, thus make optical cable machinery, Temperature performance is better.
5, the anti-element of opening of high strength aramid yarn is for optical cable provides better mechanical protection.
6, cable jacket adopts polyurethane material, has excellent weatherability, ageing-resistant performance, wear-resisting Property and fire resistance both can have been used in outdoor adverse circumstances, also can be in indoor use.
7, the connector of particular design and exterior aerial equipment connection are firm, and good seal performance makes optical cable Middle optical fiber is not vulnerable to the impact of environment.
Claims (3)
1. loosely shielded optical cable that is used for the 3G network baseband remote technology, it is characterized in that: comprise the optical fiber (2) that is located in the loose sleeve pipe (1), be filled with fine cream (3) in the pine sleeve pipe (1), pine sleeve pipe (1) periphery is coated with aramid yarn reinforcing element (4), the oversheath (5) of aramid yarn reinforcing element (4) peripheral hardware.
2. the loosely shielded optical cable that is used for the 3G network baseband remote technology according to claim 1 is characterized in that: the outside surface of described optical fiber (2) is coated with individual layer UV resin.
3. the loosely shielded optical cable that is used for the 3G network baseband remote technology according to claim 1 is characterized in that: described oversheath (5) adopts polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101366768A CN101446677A (en) | 2008-12-30 | 2008-12-30 | Loosely shielded optical cable used for 3G network baseband remote technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101366768A CN101446677A (en) | 2008-12-30 | 2008-12-30 | Loosely shielded optical cable used for 3G network baseband remote technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101446677A true CN101446677A (en) | 2009-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101366768A Pending CN101446677A (en) | 2008-12-30 | 2008-12-30 | Loosely shielded optical cable used for 3G network baseband remote technology |
Country Status (1)
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| CN (1) | CN101446677A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298990A (en) * | 2011-06-01 | 2011-12-28 | 江苏中煤电缆股份有限公司 | Towing resistance rubber flexible cable with flexibility reinforcement structure |
| CN102401953A (en) * | 2011-11-24 | 2012-04-04 | 成都亨通光通信有限公司 | Micro optical cable |
| CN102401955A (en) * | 2011-11-24 | 2012-04-04 | 成都亨通光通信有限公司 | Novel strengthened optical cable |
| CN103033444A (en) * | 2011-09-29 | 2013-04-10 | 山东太平洋光缆有限公司 | Dripping test method of optical fiber ointment for communication optical fiber cable |
| CN103543508A (en) * | 2013-11-06 | 2014-01-29 | 山东英特力光通信开发有限公司 | Communication optical fiber cable |
-
2008
- 2008-12-30 CN CNA2008101366768A patent/CN101446677A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298990A (en) * | 2011-06-01 | 2011-12-28 | 江苏中煤电缆股份有限公司 | Towing resistance rubber flexible cable with flexibility reinforcement structure |
| CN103033444A (en) * | 2011-09-29 | 2013-04-10 | 山东太平洋光缆有限公司 | Dripping test method of optical fiber ointment for communication optical fiber cable |
| CN102401953A (en) * | 2011-11-24 | 2012-04-04 | 成都亨通光通信有限公司 | Micro optical cable |
| CN102401955A (en) * | 2011-11-24 | 2012-04-04 | 成都亨通光通信有限公司 | Novel strengthened optical cable |
| CN103543508A (en) * | 2013-11-06 | 2014-01-29 | 山东英特力光通信开发有限公司 | Communication optical fiber cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090603 |