CN106792259A - Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks - Google Patents
Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks Download PDFInfo
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- CN106792259A CN106792259A CN201611047180.4A CN201611047180A CN106792259A CN 106792259 A CN106792259 A CN 106792259A CN 201611047180 A CN201611047180 A CN 201611047180A CN 106792259 A CN106792259 A CN 106792259A
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- Prior art keywords
- base station
- intelligent terminal
- frequency range
- wireless broadband
- broadband networks
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/08—Trunked mobile radio systems
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks, including core switching network, the base station comprising intelligent wireless antenna and multimode intelligent terminal；Communicated using 3.3GHz frequency ranges between the multimode intelligent terminal and the base station comprising intelligent wireless antenna, the multimode intelligent terminal sends or receive view data or/and video data by the base station.Using the present invention, the demand of access device and cluster multimode intelligent terminal to broadband services such as transmission of video of PDT communication systems is disclosure satisfy that, and the functions such as broadband transmission are realized between public network.
Description
Technical field
Melt with police Digital Clustering (Police Digital Trunking, PDT) system the present invention relates to wireless broadband network
Conjunction technology, more particularly to it is a kind of based on 3.3GHz frequency ranges Long Term Evolution (Long Term Evolution, LTE) wireless broadband network
Video transmission system.
Background technology
The existing digital cluster communication standard of current China has four：The Terrestrial trunked radio (Tetra) in Europe, U.S.
The GOTA and GT800 of Xinghe Huawei Company in the Iden of state and China.Two domestic standards are changed on the basis of public network
And then come, cannot meet the demand of professional user at the aspect such as network entry time and network-off direct-passing.The Iden in the U.S. is also from public affairs
What net was improved, there is a problem of same.Only Tetra disclosure satisfy that the demand including the professional user including public security.But
European Tetra standards have small overlay area, networking high cost, the equipment of different vendor cannot be interconnected, be difficult and simulation system
The problems such as compatible, encryption interface misaligns state's opening and excessive foreign patent barrier.Therefore Chinese public safety industry is needed badly
One possesses independent intellectual property right, and is adapted to the new Digital Clustering standard of country's public safety simulation system digital improvement.
In view of the foregoing, 2008 start, and have research and development ability by scientific and technological informationization office of Ministry of Public Security tissue Some Domestic
MPT analog cluster systems provide enterprise and research unit, by the effort more than 2 years, with reference to the Digital Clustering in Europe and the U.S.
Standard, has formulated a Digital Clustering standard with China's independent intellectual property right, i.e. PDT standards.PDT standards are according to China
National conditions, be filled with the brand-new Digital Clustering system of chinese producers autonomous innovation factor, its have overlay area it is big, using domestic
AES encryption and decryption, producer's system interconnect, backward compatible simulation system, patent shared, the simple cost of technology is low excellent
Gesture.PDT standards based on the police demand of public security, progressively expand to other industry at present, strive turning into the numeral of global main flow
One of cluster standard.
But, with PDT standards and the constantly improve of PDT communication systems, except to realize the dedicated network communication system
It is outer with interconnecting for public network communication system, also need further to lift communications energy of the arrowband cluster to broadband cluster evolution
Power.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of regarding based on 3.3GHz frequency range LTE wireless broadband networks
Frequency Transmission system, to meet the access device and cluster multimode intelligent terminal of PDT communication systems to broadbands such as image/video transmissions
The demand of data service, and the functions such as broadband transmission are realized between public network.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks, including core switching network, comprising wireless
The base station of smart antenna and multimode intelligent terminal；The multimode intelligent terminal and the base station comprising intelligent wireless antenna it
Between communicated using 3.3GHz frequency ranges, the multimode intelligent terminal sent by the base station or received view data or/and
Video data.
Wherein, the also dispatching control center including being connected with the core switching network.
The core switching network connects at least one base station, multimode intelligent terminal by wire communication or communication
3.3GHz frequency range LTE wireless broadband networks are accessed by the base station.
Multimode intelligent terminal sends to the dispatching control center through base station, core net or receives view data or/and regard
Frequency evidence.
The multimode intelligent terminal is sent out through base station, core net to other multimode intelligent terminals of the LTE wireless broadband networks
Send image or/and video data.
The dispatching control center initiates voice service and data, services through core net, base station to multimode intelligent terminal.
View data or/and video data that the multimode intelligent terminal sends, under the control of dispatching control center, warp
Core net, ground satellite station are sent to Emergency communication vehicle by satellite.
The Emergency communication vehicle is connected by base station with core net, and described view data or/and video data are sent
Give other multimode intelligent terminals.
Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks provided by the present invention, with advantages below：
The Video transmission system of LTE wireless broadband network of the present invention based on 3.3GHz frequency ranges, can realize the WiMAX
The miscellaneous service of dedicated network, such as high speed data transfer, mobile image/transmission of video business.Described image/transmission of video industry
Business, in PDT trunked communication system applications, mainly includes image scene transmission, the transmission of vehicle mobile video, daily police service video
Transmission etc..Further, can also realize being moved with satellite communication system, public network 3G/4G by the transmission link of terrestrial wideband network
The video and image retransmission function of dynamic broadband networks, so as to realize that provide operational area multi-path high-definition video uploads, moves in real time
The support of the Image Real-time Transmission business such as the real-time upload of video acquisition and multimode terminal law enforcement recorded information.
Brief description of the drawings
Fig. 1 is the network composition schematic diagram of Video transmission system of the present invention based on 3.3GHz frequency range LTE wireless broadband networks.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiments of the invention to the present invention based on 3.3GHz frequency range LTE wireless broadband networks video
Transmission system is described in further detail.
Fig. 1 is the net of Video transmission system of the present invention based on 3.3GHz frequency range LTE wireless broadband networks (referred to as " private network ")
Network composition schematic diagram.
As shown in figure 1, the Video transmission system of the private network, mainly includes core switching network (referred to as " core net "), base station
(BS), multimode intelligent terminal and the dispatching control center being connected with the core net.
Wherein, the core net is led to by wired (including fiber optic communication, high speed circuit) or wireless (including microwave, satellite)
Letter mode connects multiple base stations, and each base station is connected with least one multimode intelligent terminal with communication.The intelligence
Terminal accesses the core net (mobile switching centre of private network) of the private network using 3.3GHz radio bands by the base station.
Described base station includes base station controller, base station transceiver and wideband smart antenna.
The multimode intelligent terminal, is connected with the base station by Radio Link, and image or/and video are sent by base station
Data, or image or/and video data are sent to dispatching control center by base station, core net；Also can be controlled by dispatching
Center processed, core net and base station receive speech service business, the data service business that dispatching control center sends.
The multimode intelligent terminal, directly can also initiate intercommunication (PTT, Push To other multimode intelligent terminals
Talk) business, it is also possible to by ask relaying by base station (or by base station->Core net->Base station) to other multimode intelligence
Terminal initiates PTT service.So, you can realize group exhale, group call service.
The multimode intelligent terminal, it is also possible to by accessing public network 3G/4G wireless broadband networks, other shiftings supported using it
Dynamic communication network standard is realized carrying out voice, data communication with other communication terminals in public network.Further, it is also possible to pass through private network
Core net and dispatching control center, through IP network by communication gate and other mobile communications networks, cluster network, Gong Zhong electricity
Phone network is communicated.Can also be by the way that core net is by ground satellite station, the user through telecommunication satellite and other networks or/and defends
Star phone is communicated.
The dispatching control center, is initiated by the core net and base station of the private network to called multimode intelligent terminal
Voice service (including individual calling, group are exhaled and grouied busy) and data, services (including short data service, packet data service).The number
According to service, including the communication of word, image transmitting and transmission of video.
Further, Video transmission system of the invention, wireless cpe device, wireless emergency communication are also supported by base station
Command car, individual soldier's broadband wireless access equipment core network access, and then keep communicating to connect with dispatching control center；Or and its
His intelligent wireless terminal, cluster multimode intelligent terminal are communicated.
Described emergency communication command car, additionally it is possible to collected with other through core net by telecommunication satellite, ground satellite station
Group's multimode intelligent terminal carries out speech and data communication.The data communication includes word, image transmitting and transmission of video
Business.
Described dispatching control center, is receiving the image that cluster multimode intelligent terminal comes through base station, core network
After video, can be by the client that works, dispatching control center giant-screen, it is also possible to shown by projector.
The above, only presently preferred embodiments of the present invention is not intended to limit the scope of the present invention.
Claims (8)
1. a kind of Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks, including core switching network, comprising wireless intelligence
The base station of energy antenna and multimode intelligent terminal；Characterized in that, the multimode intelligent terminal with described comprising intelligent wireless day
Communicated using 3.3GHz frequency ranges between the base station of line, the multimode intelligent terminal sends or receive image by the base station
Data or/and video data.
2. the Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks according to claim 1, its feature exists
In the also dispatching control center including being connected with the core switching network.
3. the Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks according to claim 1 and 2, its feature
It is that the core switching network connects at least one base station by wire communication or communication, multimode intelligent terminal leads to
Cross the base station and access 3.3GHz frequency range LTE wireless broadband networks.
4. the Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks according to claim 2, its feature exists
In multimode intelligent terminal sends or receive view data or/and video counts through base station, core net to the dispatching control center
According to.
5. the Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks according to claim 1, its feature exists
In the multimode intelligent terminal sends image through base station, core net to other multimode intelligent terminals of the LTE wireless broadband networks
Or/and video data.
6. the Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks according to claim 2, its feature exists
In the dispatching control center initiates voice service and data, services through core net, base station to multimode intelligent terminal.
7. the Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks according to claim 1, its feature exists
In view data or/and video data that the multimode intelligent terminal sends, under the control of dispatching control center, through core
Net, ground satellite station are sent to Emergency communication vehicle by satellite.
8. the Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks according to claim 7, its feature exists
In the Emergency communication vehicle is connected by base station with core net, and described view data or/and video data are sent into other
Multimode intelligent terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047180.4A CN106792259A (en) | 2016-11-23 | 2016-11-23 | Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047180.4A CN106792259A (en) | 2016-11-23 | 2016-11-23 | Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks |
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| Publication Number | Publication Date |
|---|---|
| CN106792259A true CN106792259A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611047180.4A Pending CN106792259A (en) | 2016-11-23 | 2016-11-23 | Video transmission system based on 3.3GHz frequency range LTE wireless broadband networks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111314267A (en) * | 2018-12-11 | 2020-06-19 | 中电科海洋信息技术研究院有限公司 | Data communication method and system based on LTE network |
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Cited By (2)
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|---|---|---|---|---|
| CN111314267A (en) * | 2018-12-11 | 2020-06-19 | 中电科海洋信息技术研究院有限公司 | Data communication method and system based on LTE network |
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Application publication date: 20170531 |
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