CN102883186A - IPTV system and IPTV implementing method - Google Patents

IPTV system and IPTV implementing method Download PDF

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Publication number
CN102883186A
CN102883186A CN2012103400191A CN201210340019A CN102883186A CN 102883186 A CN102883186 A CN 102883186A CN 2012103400191 A CN2012103400191 A CN 2012103400191A CN 201210340019 A CN201210340019 A CN 201210340019A CN 102883186 A CN102883186 A CN 102883186A
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iptv
lte
media server
streaming media
signal
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王继征
王金宝
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Priority to CN2012103400191A priority Critical patent/CN102883186A/en
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Abstract

The invention provides an IPTV (Internet Protocol Television) system and an IPTV implementing method. The IPTV system comprises an IPTV streaming media server and an LTE (Long Term Evolution) system and the LTE system comprises an LTE core network and a base station, wherein the IPTV streaming media server is used for sending an IPTV wired signal to the LTE system; and the LTE system is connected with the IPTV streaming media server and is used for receiving the IPTV wired signal sent by the IPTV streaming media server, converting the IPTV wired signal into an IPTV wireless signal to transmit in the LTE network and sending the IPTV wireless signal to an IPTV terminal. With the IPTV system and the IPTV implementing method, the IPTV wireless transmission is implemented.

Description

IPTV system and IPTV implementation method
Technical field
The application relates to communication technical field, particularly relates to a kind of IPTV(Internet Protocol Television, network protocol television) system and a kind of IPTV implementation method.
Background technology
Existing television system is divided into two classes, and a class is the conventional wireless radio and television, a kind of IPTV that is based on wire transmission.
No matter the conventional wireless radio and television are that digital signal sends or analog signal sends, it all is the form emission wireless television signal of broadcasting, television set only need to just can teleview with the one-sided received television signal of antenna, and the communication mode of this forms of broadcasting has regularly directed characteristics.But the conventional wireless radio and television are transmitted signals of the forms of broadcasting, and the televiewer can only passive reception signal, so this communication mode has greatly limited interactive between televiewer and the TV provider, have limited just-in-time and the personalization of program.
For this reason, IPTV arises at the historic moment.IPTV also claims IPTV, the infrastructure of utilizing broadband cabled television network, provide the multiple digital media service that comprises TV programme by Internet protocol, user terminal can be IP set-top box combination conventional television, also can be the novel information terminals such as PC.This TV tech can obtain high-quality digital media service, the televiewer can with TV provider realize interactive, diversified service so that IPTV have a extensive future.
Yet, existing IPTV technology is in order to guarantee quality of TV image, often transmission bandwidth is had higher requirements, so can only be applied in the cable broadband networking, then can't use for the country that can't be equipped with the gauze road, and cable network has also limited the use of the transportable novel information television terminals such as PC.It is limited that these have all caused IPTV to use, so that the user demand that IPTV can not the to satisfy effectively user.
Summary of the invention
The application provides a kind of IPTV system and a kind of IPTV implementation method, to solve the problem that existing IPTV can not to satisfy effectively user user demand.
In order to address the above problem, the application discloses a kind of IPTV system, comprising: IPTV streaming media server and Long Term Evolution LTE system, and described LTE system comprises LTE core net and base station; Wherein, described IPTV streaming media server is used for the IPTV wire signal is sent to described LTE system; Described LTE system, be connected in described IPTV streaming media server, be used for receiving the described IPTV wire signal that described IPTV streaming media server sends, be converted to the IPTV wireless signal and in the LTE network, transmit, and described IPTV wireless signal is sent to the IPTV terminal.
Preferably, described LTE system is connected in described IPTV streaming media server by described LTE core net; Described LTE core net receives the described IPTV wire signal that described IPTV streaming media server sends and sends to described base station, and described base station is converted to described IPTV wireless signal with described IPTV wire signal and transmits in described LTE network and send to described IPTV terminal.
Preferably, described LTE network is timesharing Long Term Evolution TD-LTE network, and the uplink and downlink time slot proportion of described TD-LTE network is 1:3.
Preferably, described LTE system after also being used for receiving the wireless control signal that described IPTV terminal sends by described LTE network and being converted to line control signal, sends to described IPTV streaming media server; Described IPTV streaming media server, also being used for receiving described that described LTE system sends has line control signal to process.
Preferably, described IPTV system also comprises video code translator, and being used for received television signal and transcoding is digital video frequency flow, and described digital video frequency flow is sent to described IPTV streaming media server; Described IPTV streaming media server after being used for receiving described digital video frequency flow and being converted to the described IPTV wire signal of ICP/IP protocol encapsulation, sends to described LTE system.
In order to address the above problem, disclosed herein as well is a kind of IPTV implementation method, comprising: the IPTV streaming media server sends to Long Term Evolution LTE system with the IPTV wire signal, and described LTE system comprises LTE core net and base station; Described LTE system receives described IPTV wire signal, is converted to the IPTV wireless signal and transmits in the LTE network, and described IPTV wireless signal is sent to the IPTV terminal.
Preferably, described LTE system receives described IPTV wire signal, be converted to the IPTV wireless signal and transmit in the LTE network, and the step that described IPTV wireless signal is sent to the IPTV terminal comprises: the described LTE core net in the described LTE system receives described IPTV wire signal and sends to described base station; Described base station is converted to described IPTV wireless signal with described IPTV wire signal and transmits in the LTE network and send to described IPTV terminal.
Preferably, described LTE system receives described IPTV wire signal, being converted to the IPTV wireless signal transmits in the LTE network, and the step that described IPTV signal is sent to the IPTV terminal comprises: described LTE system receives described IPTV wire signal, be converted to behind the IPTV wireless signal in the uplink and downlink time slot proportion is the TD-LTE network of 1:3 and transmit, and described IPTV wireless signal is sent to the IPTV terminal.
Preferably, described IPTV implementation method also comprises: described LTE system sends to described IPTV streaming media server after receiving the wireless control signal that described IPTV terminal sends by described LTE network and being converted to line control signal; Described IPTV streaming media server receives described that described LTE system sends has line control signal to process.
Preferably, before described IPTV streaming media server sends to the step of LTE system with the IPTV wire signal, also comprise: video code translator received television signal and transcoding are digital video frequency flow, and described digital video frequency flow is sent to described IPTV streaming media server; Described IPTV streaming media server comprises the step that the IPTV wire signal sends to the LTE system: after described IPTV streaming media server receives described digital video frequency flow and is converted to the described IPTV wire signal of ICP/IP protocol encapsulation, send to described LTE system.
Compared with prior art, the application has the following advantages:
The application is by IPTV streaming media server and LTE system, the IPTV wire signal is sent to the LTE system of cordless communication network by the IPTV streaming media server, be converted to the IPTV wireless signal and in the LTE cordless communication network, transmit, and finally send to the IPTV terminal by the LTE system.By the application, the IPTV Technical Architecture in the LTE mobile communications network, has been solved the limitation that IPTV can only use in cable network, realized the wireless transmission of IPTV.On the one hand, this area that can't lay for cable TV network provides novel last kilometer access to watch the scheme of IPTV, and watches TV not only to be confined to the fixed location, can use in movement; On the other hand, relative conventional television broadcast, this TV tech can be given full play to the advantage of IPTV, provides the abundant TV applications such as interactive application and playback program recording, to satisfy effectively user's user demand.
Description of drawings
Fig. 1 is the structural representation according to a kind of IPTV system of the embodiment of the present application one;
Fig. 2 is the structural representation according to a kind of IPTV system of the embodiment of the present application two;
Fig. 3 is the flow chart of steps according to a kind of IPTV implementation method of the embodiment of the present application three;
Fig. 4 is the flow chart of steps according to a kind of IPTV implementation method of the embodiment of the present application four.
Embodiment
For above-mentioned purpose, the feature and advantage that make the application can become apparent more, below in conjunction with the drawings and specific embodiments the application is described in further detail.
Embodiment one
With reference to Fig. 1, show the structural representation according to a kind of IPTV system of the embodiment of the present application one.
The IPTV system of present embodiment comprises IPTV streaming media server 102 and LTE system 104.Wherein, LTE system 104 comprises that the LTE core net is EPC(Evolved Packet Core, the packet-based core networks of evolution) and the base station.
IPTV streaming media server 102 is connected connection with the LTE system, the EPC in being specially IPTV streaming media server 102 and the LTE system being connected connects, by this connection so that use the IPTV signal of cable network in the mobile radio communication of wireless network, to transmit.
Wherein, IPTV streaming media server 102 is used for the IPTV wire signal is sent to LTE system 104, is specially the EPC in the LTE system 104; LTE system 104, be connected in IPTV streaming media server 102, be used for receiving the IPTV wire signal that IPTV streaming media server 102 sends, be converted to the IPTV wireless signal at LTE(Long Term Evolution, Long Term Evolution) transmits in the network, and the IPTV wireless signal is sent to the IPTV terminal.When specific implementation, can be that the LTE core net of LTE system receives the IPTV wire signal that the IPTV streaming media server sends and sends to the base station, the base station is converted to the IPTV wireless signal with the IPTV wire signal and transmits in the LTE network and send to the IPTV terminal.Wherein, the LTE core net can play the functions such as exchanges data, registration, mobile management, and the transmitting-receiving of LTE wireless signal then can be realized in the base station.A LTE core net is that EPC can be connected with one or more base stations.
For example, after IPTV streaming media server 102 receives the IPTV wire signal that transmits in the cable network, by the interface between the EPC of IPTV streaming media server 102 and LTE system 104 (can be the general networks interface), this IPTV wire signal is sent to LTE system 104, also namely send in the LTE network and go, use cordless communication network to transmit, LTE system 104 finally sends to this IPTV wireless signal the IPTV terminal that can receive the IPTV wireless signal by the base station with the wireless signal form after by the base station this IPTV wire signal being converted to the IPTV wireless signal.
Traditional IPTV can only be applied in the wired broadband network, can't transmit in cordless communication network.Pass through present embodiment, use IPTV streaming media server and LTE system, by the IPTV streaming media server IPTV wire signal is sent to the LTE system of cordless communication network, be converted to the IPTV wireless signal and in the LTE cordless communication network, transmit, and finally send to the IPTV terminal by the LTE system.By the scheme of present embodiment, the IPTV Technical Architecture in the LTE mobile communications network, has been solved the limitation that IPTV can only use in cable network, realized the wireless transmission of IPTV.On the one hand, this area that can't lay for cable TV network provides novel last kilometer access to watch the scheme of IPTV, and watches TV not only to be confined to the fixed location, can use in movement; On the other hand, relative conventional television broadcast, this TV tech can be given full play to the advantage of IPTV, provides the abundant TV applications such as interactive application and playback program recording, to satisfy effectively user's user demand.
Embodiment two
With reference to Fig. 2, show the structural representation according to a kind of IPTV system of the embodiment of the present application two.
Present embodiment takes full advantage of TD-LTE(Time Division – Long Term Evolution, the timesharing Long Term Evolution) characteristics of mobile communication system WiMAX characteristic and all-IP, the IPTV video streaming on the TD-LTE system, is finished the transmission of IPTV on wireless channel.
The IPTV system of present embodiment comprises: video code translator 202, IPTV streaming media server 204, EPC206, eNB208.
Wherein, video code translator 202, being used for received television signal and transcoding is digital video frequency flow, and digital video frequency flow is sent to IPTV streaming media server 204; IPTV streaming media server 204 after being used for receiving digital video stream and being converted to the IPTV wire signal of ICP/IP protocol encapsulation, sends to EPC206; EPC206 is connected with IPTV streaming media server 204, is used for receiving the IPTV wire signal that IPTV streaming media server 204 sends, and then sends to eNB208; ENB208 is converted to the IPTV wireless signal with the IPTV wire signal and transmits in the TD-LTE network, sends to the IPTV terminal.Be provided with wireless receiver in the IPTV terminal, the IPTV terminal can receive the IPTV wireless signal that base station eNB 208 sends by wireless receiver.Need to prove that wireless receiver can be arranged within the IPTV terminal body, such as the antenna in the mobile phone; This is external also can be arranged at the IPTV terminal, as is set up in outdoor antenna etc.
Preferably, EPC206 comprises the PGW(packet data gateway); EPC206 receives the IPTV wire signal that IPTV streaming media server 204 sends by PGW.Certainly, in actual applications, those skilled in the art also can adopt other appropriate ways, as the receiver module mode is set receives the IPTV wire signal that IPTV streaming media server 204 sends, and use PGW to receive the IPTV wire signal that IPTV streaming media server 204 sends, simplify the realization that the IPTV signal transmits in cordless communication network, saved the realization cost.
Preferably, the LTE system sends to IPTV streaming media server 204 after also be used for receiving the wireless control signal that the IPTV terminal sends by the TD-LTE network (such as, the command signal of the replacing channel of user's input) and being converted to line control signal; IPTV streaming media server 204 also be used for to receive the LTE system and sends and have line control signal to process, and as having line control signal to obtain user's request according to this, and then carries out program and plays and adjust etc.Preferably, EPC206 sends to IPTV streaming media server 204 by PGW line control signal.For example, the IPTV terminal sends wireless control signal by the TD-LTE network, and eNB208 sends to EPC206 after receiving this wireless control signal and being converted to line control signal; EPC206 has line control signal to send to IPTV streaming media server 204 this; IPTV streaming media server 204 receives to be processed it after this has line control signal.
Because the TD-LTE system is all-IP, and the descending hump speed of user can reach 112mbps, so EPC docking IPTV streaming media server that can be from the TD-LTE core net.Like this, form digital video frequency flow behind traditional TV programme process video code translator 202 transcodings, digital video frequency flow sends on the IPTV streaming media server 204, and IPTV streaming media server 204 can be exported based on IP(and namely be encapsulated as the ICP/IP protocol form) TV signal externally issue; Issue IPTV signal out connects the EPC206 in the TD-LTE core net, is sent to IPTV terminal such as TV user by air interface after by base station eNB 208 the IPTV wire signal being converted to wireless signal again.Wherein, TV user can adopt the form of PC+LTE data card, also can adopt the form of LTE set-top box+traditional tv, also can adopt the form of mobile radio terminal such as mobile phone.
Otherwise the IPTV terminal use also can transmit upstream data and arrive IPTV streaming media server 204 formation interactive communications.For example, IPTV terminal use request program sends order request, and this order request sends eNB208 to the wireless control signal form; ENB208 converts this wireless signal to wire signal and sends to EPC206, and then sends to IPTV streaming media server 204 by EPC206; IPTV streaming media server 204 receives line control signal is arranged and processing of this order request, as responds this order request, sends corresponding data etc. to the IPTV terminal.Preferably, EPC206 can send to IPTV streaming media server 204 by PGW line control signal
When the IPTV wireless signal transmitted in the TD-LTE network, the uplink and downlink time slot proportion of TD-LTE network can flexible configuration, represents that such as 1U3D(U ascending time slot, D represent descending time slot), perhaps 2U2D, perhaps 3U1D.Preferably, the uplink and downlink time slot proportion of TD-LTE network is 1:3, namely adopts the uplink and downlink timeslot configuration of IU3D.
If the time slot proportion of configuration 1U3D, then the descending total speed of 20mhz bandwidth cell can reach more than the 100mbps, and the rate requirement of the clear TV of a road sign is 0.8mbps, then a 20mhz residential quarter can support at most 120 above TV user online simultaneously from capacity, can satisfy preferably the number of users that uses IPTV.And the time slot proportion of employing 2U2D or 3U1D, then satiable number of users will reduce.In addition, consider that the signal strength signal intensity that the user receives is different and different with the distance base station, the antenna of fixed-line subscriber can be installed in roof or outdoor, strengthen as much as possible signal reception.Comprehensive these factors, 50 above TV user can be satisfied simultaneously online in a residential quarter, and this uses the lower countries and regions of the density of population or is enough.
Pass through present embodiment, dexterously the IPTV technology is erected on the TD-LTE wireless communication system in broadband, TD-LTE core net and IPTV streaming media server are docked, so that the WiMAX advantage of the interactive advantage of IPTV and TD-LTE is all given full play to.Thereby, having solved in the conventional wireless radio data system, TV user can't realize interactive defective with TV provider; Solved the restriction that can only be used in the IPTV television system in the wire transmission, the IPTV technological expansion has been arrived in the wireless transmission, watched interactive network television for the countries and regions that can't set up wired networking a kind of solution of novelty is provided; And, in the more wide wireless mobile space, can provide easily the bullet train TV with the application extension of TV, public transport TV, the TV form of expression that personal automobile mobile TV etc. are abundant.
Embodiment three
With reference to Fig. 3, show the flow chart of steps according to a kind of IPTV implementation method of the embodiment of the present application three.
The IPTV implementation method of present embodiment may further comprise the steps:
Step S302:IPTV streaming media server sends to the LTE system with the IPTV wire signal.
Wherein, the LTE system comprises that the LTE core net is EPC and base station.
Step S304:LTE system receives the IPTV wire signal, is converted to the IPTV wireless signal and transmits in the LTE network, and the IPTV wireless signal is sent to the IPTV terminal.
As, the LTE core net in the LTE system receives the IPTV wire signal and sends to the base station; The base station is converted to the IPTV wireless signal with the IPTV wire signal and transmits in the LTE network and send to the IPTV terminal.
The IPTV implementation method of present embodiment uses the IPTV system among the aforementioned system embodiment to realize, and has the beneficial effect of aforementioned system embodiment, does not repeat them here.
Embodiment four
With reference to Fig. 4, show the flow chart of steps according to a kind of IPTV implementation method of the embodiment of the present application four.
The IPTV implementation method of present embodiment may further comprise the steps:
Step S402: video code translator received television signal and transcoding are digital video frequency flow, and digital video frequency flow is sent to the IPTV streaming media server.
Step S404:IPTV streaming media server receiving digital video stream and be converted to the IPTV wire signal of ICP/IP protocol encapsulation after, send to EPC.
Step S406:EPC receives the IPTV wire signal and sends to the base station, and the base station is converted to the IPTV wireless signal with the IPTV wire signal and transmits in LTE network such as TD-LTE network, and by the base station IPTV wireless signal is sent to the IPTV terminal.
Preferably, EPC receives described IPTV wire signal by PGW.
Preferably, the IPTV wireless signal after the base station will be changed transmits in the uplink and downlink time slot proportion is the LTE network of 1:3.Preferably, this LTE network is the TD-LTE network.
Step S408: the base station receives the IPTV terminal by the wireless control signal that LTE network such as TD-LTE network send, and sends to EPC after being converted to line control signal, sends to the IPTV streaming media server by EPC.
Preferably, EPC will have line control signal to send to the IPTV streaming media server by PGW.
Step S410:IPTV streaming media server receives that EPC sends has line control signal and processes.
As, carry out the program adjustment, perhaps, send request program data etc.
Need to prove that in actual use, the enforcement of step S408-S410 also can be before step S402-S406, perhaps, step S408-S410 and step S402-S406 executed in parallel.
The IPTV implementation method of present embodiment uses the IPTV system in the previous embodiment two to realize, and has the beneficial effect of embodiment two, does not repeat them here.
Need to prove that all the IPTV scheme to the application describes a plurality of embodiment of the application as an example of the TD-LTE network example, but is not limited to this, the application's scheme is equally applicable to the FDD-LTE network.But under the same frequency spectrum bandwidth, the FDD-LTE network is less than TD-LTE network capacity, and the IPTV number of users that can transmit is also less.Therefore, the application's IPTV scheme is particularly useful for the TD-LTE network.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For embodiment of the method, description fairly simple, relevant part gets final product referring to the part explanation of system embodiment.
More than a kind of IPTV system and IPTV implementation method that the application is provided be described in detail, used specific case herein the application's principle and execution mode are set forth, the explanation of above embodiment just is used for helping to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, the thought according to the application all will change in specific embodiments and applications, and in sum, this description should not be construed as the restriction to the application.

Claims (10)

1. a network protocol television IPTV system is characterized in that, comprising: IPTV streaming media server and Long Term Evolution LTE system, and described LTE system comprises LTE core net and base station;
Wherein,
Described IPTV streaming media server is used for the IPTV wire signal is sent to described LTE system;
Described LTE system, be connected in described IPTV streaming media server, be used for receiving the described IPTV wire signal that described IPTV streaming media server sends, be converted to the IPTV wireless signal and in the LTE network, transmit, and described IPTV wireless signal is sent to the IPTV terminal.
2. IPTV according to claim 1 system is characterized in that, described LTE system is connected in described IPTV streaming media server by described LTE core net; Described LTE core net receives the described IPTV wire signal that described IPTV streaming media server sends and sends to described base station, and described base station is converted to described IPTV wireless signal with described IPTV wire signal and transmits in described LTE network and send to described IPTV terminal.
3. IPTV according to claim 1 and 2 system is characterized in that described LTE network is timesharing Long Term Evolution TD-LTE network, and the uplink and downlink time slot proportion of described TD-LTE network is 1:3.
4. IPTV according to claim 1 and 2 system is characterized in that,
Described LTE system after also being used for receiving the wireless control signal that described IPTV terminal sends by described LTE network and being converted to line control signal, sends to described IPTV streaming media server;
Described IPTV streaming media server, also being used for receiving described that described LTE system sends has line control signal to process.
5. IPTV according to claim 1 system is characterized in that, described IPTV system also comprises video code translator, and being used for received television signal and transcoding is digital video frequency flow, and described digital video frequency flow is sent to described IPTV streaming media server;
Described IPTV streaming media server after being used for receiving described digital video frequency flow and being converted to the described IPTV wire signal of ICP/IP protocol encapsulation, sends to described LTE system.
6. a network protocol television IPTV implementation method is characterized in that, comprising:
The IPTV streaming media server sends to Long Term Evolution LTE system with the IPTV wire signal, and described LTE system comprises LTE core net and base station;
Described LTE system receives described IPTV wire signal, is converted to the IPTV wireless signal and transmits in the LTE network, and described IPTV wireless signal is sent to the IPTV terminal.
7. method according to claim 6 is characterized in that, described LTE system receives described IPTV wire signal, be converted to the IPTV wireless signal and transmit in the LTE network, and the step that described IPTV wireless signal is sent to the IPTV terminal comprises:
Described LTE core net in the described LTE system receives described IPTV wire signal and sends to described base station;
Described base station is converted to described IPTV wireless signal with described IPTV wire signal and transmits in the LTE network and send to described IPTV terminal.
8. according to claim 6 or 7 described methods, it is characterized in that described LTE system receives described IPTV wire signal, be converted to the IPTV wireless signal and transmit, and the step that described IPTV signal is sent to the IPTV terminal comprises in the LTE network:
Described LTE system receives described IPTV wire signal, is converted to behind the IPTV wireless signal in the uplink and downlink time slot proportion is the TD-LTE network of 1:3 to transmit, and described IPTV wireless signal is sent to the IPTV terminal.
9. according to claim 6 or 7 described methods, it is characterized in that, also comprise:
Described LTE system sends to described IPTV streaming media server after receiving the wireless control signal that described IPTV terminal sends by described LTE network and being converted to line control signal;
Described IPTV streaming media server receives described that described LTE system sends has line control signal to process.
10. method according to claim 6 is characterized in that,
Before described IPTV streaming media server sends to the step of LTE system with the IPTV wire signal, also comprise: video code translator received television signal and transcoding are digital video frequency flow, and described digital video frequency flow is sent to described IPTV streaming media server;
Described IPTV streaming media server comprises the step that the IPTV wire signal sends to the LTE system: after described IPTV streaming media server receives described digital video frequency flow and is converted to the described IPTV wire signal of ICP/IP protocol encapsulation, send to described LTE system.
CN2012103400191A 2012-09-13 2012-09-13 IPTV system and IPTV implementing method Pending CN102883186A (en)

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Application publication date: 20130116