CN114024943B - Multimedia data service processing method and system based on I-PON - Google Patents
Multimedia data service processing method and system based on I-PON Download PDFInfo
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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- H04L2212/00—Encapsulation of packets
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Abstract
In the system, a gateway repacks a bidirectional service request sent by a terminal to generate a UDP request data packet and sends the UDP request data packet to an IP broadcast intelligent distributor through a bidirectional data network, the IP broadcast intelligent distributor is used as a bidirectional service agent to request bidirectional service downlink data to a server, the bidirectional service downlink data packet fed back by the server is marked and then directly sent to the gateway through an I-PON unidirectional broadcast optical fiber network to finally be sent to the terminal, the bidirectional service downlink data does not occupy the bidirectional data network any more, the bidirectional service downlink data transmission efficiency and the speed are improved, meanwhile, the bidirectional data network and the I-PON unidirectional broadcast optical fiber network are well compatible, and the advantages of convenience and smoothness in large data transmission and richer program content of OTT can be fully exerted.
Description
Technical Field
The disclosure relates to the technical field of communication, in particular to a multimedia data service processing method and system based on an I-PON.
Background
In order to actively cope with the integration of three networks, broadcast and television enterprises carry out bidirectional network transformation in a large range in the past few years, but with the rapid development of services, especially the rapid development of high-quality video services, the broadcast and television enterprises are limited by the bandwidth of the traditional access mode, and the future full-service deployment is difficult to effectively support.
In 3 months of 2017, the national news publishing and broadcasting and television headquarter formally releases GY/T306.1-2017, part 1 of the technical Specification of the cable television network fiber-to-the-home system: general technical requirements, wherein the I-PON scheme is included as one of the typical application schemes. The I-PON system scheme is an optical fiber home-to-home technical scheme based on a tera IP broadcasting technology and a bidirectional IP technology, the tera IP broadcasting technology applies a tera Ethernet technology to a unidirectional broadcasting network, the defects caused by the traditional radio frequency technology are eliminated, meanwhile, the problem of space interference is solved, the frequency point limitation is avoided, and the bandwidth can be expanded from 10G to 20G, 40G and 100G along with the continuous upgrading of an IP broadcasting receiving module. The bidirectional IP technology may be EPON (Ethernet Passive Optical Network ), GPON (Gigabit-Capable PON, passive optical access system), 10G xPON bidirectional optical fiber network, coaxial EOC (Ethernet Over Cable)/DOCSIS (Data Over Cable Service Interface Specifications) technology, wireless communication network or ethernet technology.
However, currently, broadcast and telecom operators widely provide OTT (Over The Top) -based video services, whether live broadcast or on demand, three-layer, four-layer and application layer datagram types of the broadcast and telecom operators are respectively UDP/TCP/HTTP (HLS), and the TCP/HTTP protocol is highly dependent on a bidirectional physical channel, cannot be well compatible with a network system based on separation of unidirectional and bidirectional channels, and cannot exert the advantages of convenient and smooth large data transmission, richer program content and the like of OTT.
Disclosure of Invention
In view of the above, in order to solve the above technical problems, the present disclosure provides a method and a system for processing a multimedia data service based on an I-PON.
According to an aspect of the present disclosure, there is provided an I-PON based multimedia data service processing system comprising an IP broadcast intelligent distributor and a gateway comprising a network processor and an IP broadcast receiving module,
the network processor is used for repackaging and packaging a bidirectional service request sent by a terminal into a UDP request data packet, and sending the UDP request data packet to the IP broadcast intelligent distributor through a bidirectional data network, wherein the UDP request data packet comprises a terminal identifier, a gateway identifier and request information of the bidirectional service request, and the bidirectional service request is generated based on a TCP/HTTP protocol;
The IP broadcasting intelligent distributor is used as a bidirectional service agent of the terminal and is used for decapsulating the UDP request data packet to obtain the request information, the terminal identifier and the gateway identifier, recording the terminal identifier and the gateway identifier, generating a request message according to the request information and the distributor identifier, and transmitting the request message to a server so that the server determines downlink data requested by the terminal according to the request message and generates a bidirectional service downlink data packet which needs to be transmitted to the IP broadcasting intelligent distributor according to the downlink data; and
the bidirectional service downlink data packet is received, the terminal identification and the gateway identification are utilized to mark the bidirectional service downlink data packet, the obtained marked data packet is sent to the gateway through an I-PON unidirectional broadcast optical fiber network, and the bidirectional service downlink data packet is consistent with the data packet of the marked data packet in type;
and when the IP broadcast receiving module judges that the received marked data packet carries the gateway identification, the gateway sends the marked data packet to a terminal corresponding to the terminal identification in the marked data packet.
In one possible implementation, repackaging and encapsulating the bidirectional service request sent by the terminal into a UDP request packet includes:
adding the gateway identification in the bidirectional service request from the terminal, repackaging and packaging to generate the UDP request data packet, wherein the bidirectional service request comprises request information and the terminal identification,
the terminal identification comprises an IP address and an MAC address of the terminal, and the gateway identification comprises the MAC address of the gateway and/or the MAC address of the IP broadcast receiving module.
In one possible implementation, the distributor identification includes an IP address of the IP broadcast intelligent distributor and/or a MAC address of the IP broadcast intelligent distributor.
In one possible implementation manner, when the IP broadcast receiving module determines that the received marked data packet carries the gateway identifier, the gateway sends the marked data packet to a terminal corresponding to the terminal identifier in the marked data packet, where the method includes:
and when judging that the received marked data packet carries the gateway identifier, the IP broadcast receiving module sends the marked data packet to a terminal corresponding to the terminal identifier in the marked data packet.
In one possible implementation manner, when the IP broadcast receiving module determines that the received marked data packet carries the gateway identifier, the gateway sends the marked data packet to a terminal corresponding to the terminal identifier in the marked data packet, where the method includes:
when the IP broadcast receiving module judges that the received marked data packet carries the gateway identifier, address conversion is carried out on the marked data packet, and the obtained converted data packet is sent to the network processor;
and the network processor sends the converted data packet to a terminal corresponding to the terminal identifier.
In one possible implementation, the bidirectional traffic downstream packet, the tagged packet and the request packet are generated based on the TCP/HTTP protocol.
According to another aspect of the present disclosure, there is provided an I-PON-based multimedia data service processing method, which is applied to an IP broadcasting intelligent distributor, the method comprising:
receiving a UDP request data packet sent by a network processor of a gateway through a bidirectional data network, wherein the UDP request data packet is formed by repackaging and packaging a bidirectional service request sent by a terminal by the network processor, the UDP request data packet comprises a gateway identifier, a terminal identifier and request information of the bidirectional service request, and the bidirectional service request is generated based on a TCP/HTTP protocol;
The bidirectional service agent serving as the terminal de-encapsulates the UDP request data packet to obtain the request information, the terminal identifier and the gateway identifier, records the terminal identifier and the gateway identifier, generates a request message according to the request information and the distributor identifier, and sends the request message to a server, so that the server determines downlink data requested by the terminal according to the request message, and generates a bidirectional service downlink data packet which needs to be sent to the IP broadcast intelligent distributor according to the downlink data;
receiving the bidirectional service downlink data packet, and marking the bidirectional service downlink data packet by using the terminal identifier and the gateway identifier to obtain a marked data packet;
the marked data packet is sent to the gateway through an I-PON unidirectional broadcast optical fiber network, so that when the IP broadcast receiving module of the gateway judges that the marked data packet carries the gateway identification, the gateway sends the marked data packet to a terminal corresponding to the terminal identification in the marked data packet,
and the bidirectional service downlink data packet is consistent with the data packet type of the marked data packet.
In one possible implementation, the distributor identification includes an IP address of the IP broadcast intelligent distributor and/or a MAC address of the IP broadcast intelligent distributor.
In one possible implementation, the bidirectional traffic downstream packet, the tagged packet and the request packet are generated based on the TCP/HTTP protocol.
According to another aspect of the present disclosure, there is provided an I-PON based multimedia data service processing method applied to a gateway including a network processor and an IP broadcast receiving module, the method comprising:
repackaging and packaging a bidirectional service request sent by a terminal into a UDP request data packet by using the network processor, and sending the UDP request data packet to an IP broadcast intelligent distributor through a bidirectional data network, wherein the UDP request data packet comprises a gateway identifier, a terminal identifier and request information of the bidirectional service request, and the bidirectional service request is generated based on a TCP/HTTP protocol;
the IP broadcast receiving module is utilized to receive the marked data packet from the IP broadcast intelligent distributor, when judging that the marked data packet carries the gateway identification, the gateway sends the marked data packet to a terminal corresponding to the terminal identification in the marked data packet,
After receiving the UDP request packet, the IP broadcast intelligent distributor de-encapsulates the UDP request packet as a bidirectional service agent of the terminal to obtain the request information, the terminal identifier and the gateway identifier, records the terminal identifier and the gateway identifier, generates a request packet according to the request information and the distributor identifier, and sends the request packet to a server, so that the server determines downlink data requested by the terminal according to the request packet, and generates a bidirectional service downlink data packet to be sent to the IP broadcast intelligent distributor according to the downlink data; and marking the received bidirectional service downlink data packet by using the terminal identifier and the gateway identifier to obtain the marked data packet, wherein the bidirectional service downlink data packet is consistent with the marked data packet in type.
In one possible implementation manner, the network processor is used to repackage and encapsulate the bidirectional service request sent by the terminal into a UDP request packet, including:
adding the gateway identification to a bidirectional service request from the terminal by the network processor, repackaging and packaging to generate the UDP request data packet, wherein the bidirectional service request comprises request information and the terminal identification,
The terminal identification comprises an IP address and an MAC address of the terminal, and the gateway identification comprises the MAC address of the gateway and/or the MAC address of the IP broadcast receiving module.
In one possible implementation manner, the gateway sends the marked data packet to a terminal corresponding to a terminal identifier in the marked data packet, including:
and transmitting the marked data packet to a terminal corresponding to the terminal identifier in the marked data packet by using the IP broadcast receiving module.
In one possible implementation manner, the gateway sends the marked data packet to a terminal corresponding to a terminal identifier in the marked data packet, including:
address conversion is carried out on the marked data packet by utilizing the IP broadcast receiving module, and the obtained converted data packet is sent to the network processor;
and transmitting the converted data packet to a terminal corresponding to the terminal identifier by using the network processor.
In one possible implementation, the bidirectional traffic downstream packet, the tagged packet and the request packet are generated based on the TCP/HTTP protocol.
According to the multimedia data service processing method and system based on the I-PON, the gateway repacks and encapsulates the bidirectional service request sent by the terminal to generate the UDP request data packet and sends the UDP request data packet to the IP broadcasting intelligent distribution machine through the bidirectional data network, the IP broadcasting intelligent distribution machine serves as a bidirectional service agent of the terminal to request bidirectional service downlink data to the server, the bidirectional service downlink data packet fed back by the server is directly sent to the gateway through the I-PON unidirectional broadcasting optical fiber network to be finally sent to the terminal, the bidirectional service downlink data does not occupy the bidirectional data network any more, the bidirectional service downlink data transmission efficiency and speed are improved, meanwhile, the bidirectional data network and the I-PON unidirectional broadcasting optical fiber network are well compatible, and the advantages of convenience and smoothness in large data transmission, more abundant program content and the like of OTT can be fully exerted.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features and aspects of the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 illustrates a schematic structure of an I-PON based multimedia data service processing system according to an embodiment of the present disclosure.
Fig. 2 illustrates a schematic structure of an I-PON based multimedia data service processing system according to an embodiment of the present disclosure.
Fig. 3 shows a flowchart of a multimedia data service processing method based on an I-PON according to an embodiment of the present disclosure.
Fig. 4 shows a flowchart of a multimedia data service processing method based on an I-PON according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the disclosure will be described in detail below with reference to the drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
In addition, numerous specific details are set forth in the following detailed description in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art have not been described in detail in order not to obscure the present disclosure.
Fig. 1 illustrates a schematic structure of an I-PON based multimedia data service processing system according to an embodiment of the present disclosure. As shown in fig. 1, the system includes: an IP broadcast intelligent distributor (IP Distribution Line Terminal, abbreviated DLT) 10 and a gateway 20, the gateway 20 comprising a network processor (Network Processor, abbreviated NP) 201 and an IP broadcast receiving module (IP Receiving Module, abbreviated IPRM) 202.
The network processor 201 is configured to repackage and encapsulate a bidirectional service request sent by the terminal 30 into a UDP request packet, and send the UDP request packet to the IP broadcast intelligent distributor 10 through the bidirectional data network 40, where the UDP request packet includes a terminal identifier, a gateway identifier, and request information of the bidirectional service request, and the bidirectional service request is generated based on a TCP/HTTP protocol.
The IP broadcast intelligent distributor 10 is used as a bidirectional service proxy for the terminal 30, and is configured to decapsulate the UDP request packet to obtain the request information, the terminal identifier, and the gateway identifier, record the terminal identifier and the gateway identifier, generate a request packet according to the request information and the distributor identifier, and send the request packet to the server 50, so that the server 50 determines downlink data requested by the terminal 30 according to the request packet, and generates a bidirectional service downlink packet to be sent to the IP broadcast intelligent distributor 10 according to the downlink data.
The IP broadcast intelligent distributor 10 is further configured to receive the bidirectional downstream data packet, tag the bidirectional downstream data packet with the terminal identifier and the gateway identifier, and send the obtained tagged data packet to the gateway 20 through the I-PON unidirectional broadcast optical fiber network 60, where the bidirectional downstream data packet is consistent with the tagged data packet in type.
The IP broadcast receiving module 202, when determining that the received marked data packet carries the gateway identifier, sends the marked data packet to the terminal 30 corresponding to the terminal identifier in the marked data packet by the gateway 20.
According to the multimedia data service processing system based on the I-PON, the gateway repacks and encapsulates the bidirectional service request sent by the terminal into the UDP request data packet and sends the UDP request data packet to the IP broadcasting intelligent distributor through the bidirectional data network, the IP broadcasting intelligent distributor serves as a bidirectional service proxy of the terminal to request bidirectional service downlink data to the server, the bidirectional service downlink data packet fed back by the server is marked and then is directly sent to the gateway through the I-PON unidirectional broadcasting optical fiber network to be finally sent to the terminal, the bidirectional service downlink data does not occupy the bidirectional data network any more, the bidirectional service downlink data transmission efficiency and the speed are improved, meanwhile, the bidirectional data network and the I-PON unidirectional broadcasting optical fiber network are well compatible, and the advantages of convenience and smoothness in large data transmission, more abundant program contents and the like of OTT can be fully exerted.
In this embodiment, the gateway may be an I-PON home gateway, and the gateway may receive bidirectional service requests of all subordinate terminals, where the terminals may be devices capable of sending bidirectional service requests, such as a set-top box, an intelligent television, a mobile terminal (e.g., a smart phone, a tablet pc, etc.), and the disclosure is not limited to this. The bidirectional service request comprises request information, and the request information is used for indicating related information of the service requested by the terminal. The gateway is connected with the bidirectional data network and the I-PON unidirectional broadcast optical fiber network, and is connected with the terminal through the local area network to perform data transmission.
In this embodiment, the terminal identifier may include an IP address and a MAC address of the terminal 30, and may also include a label such as a number of the terminal in the gateway, which is capable of distinguishing which of a plurality of terminals subordinate to the gateway is the bidirectional service request, which is not limited by the present disclosure. For example, the terminal identification may be an IP address and a MAC address of the terminal, so that the terminal may be locked based on the IP address and the MAC address. Assuming that 5 terminals can each send a bidirectional service request to the gateway, the 5 terminals may be numbered in advance, e.g. 1, 2, 3, 4, 5, respectively, and then it may be determined which of the 5 specific terminals is according to the number.
In this embodiment, since the IP broadcast intelligent distributor may receive UDP request packets of a plurality of gateways, the gateway identifier is set so that the plurality of gateways can be distinguished based on the gateway identifier. The gateway identification may include a MAC address of the gateway 20 and/or a MAC address of the IP broadcast receiving module 202, and may also include a label such as a number of the gateway in the IP broadcast intelligent distributor, which is not limited by the present disclosure. For example, the gateway identification may be a MAC address of the IP broadcast receiving module, such that the IP broadcast intelligent distributor may lock the gateway based on the MAC address of the IP broadcast receiving module. Assuming that there are 4 gateways that can each send a UDP request packet to the server, the 4 gateways may be numbered in advance, e.g., a, b, c, and d, respectively, then it may be determined which of the 4 specific gateways is based on the number.
In this embodiment, since the server may receive the request messages of the plurality of IP broadcast intelligent distributors, the IP broadcast intelligent distributor identifier is set so as to be able to distinguish the plurality of IP broadcast intelligent distributors based on the IP broadcast intelligent distributor identifier. The IP broadcast intelligent distributor identifier may include a distributor identifier including an IP address of the IP broadcast intelligent distributor and/or a MAC address of the IP broadcast intelligent distributor, and may further include a label such as a number of the IP broadcast intelligent distributor in a server, which is not limited in this disclosure. For example, the IP broadcast intelligent distributor identification may be a MAC address of the IP broadcast receiving module, such that the server may lock the IP broadcast intelligent distributor based on the MAC address of the IP broadcast receiving module. Assuming that 4 IP broadcast intelligent distributors can each send a request message to the server, the 4 IP broadcast intelligent distributors can be numbered in advance, for example, A, B, C and G respectively, and then which of the 4 specific IP broadcast intelligent distributors is can be determined according to the numbers.
In this embodiment, the IP broadcast intelligent distributor receives the UDP request packet, then decapsulates the UDP request packet to obtain the gateway identifier, and then further parses the UDP request packet to obtain the terminal identifier and the request information. And after the gateway identification and the terminal identification are recorded, generating the request message according to the request information and the distributor identification. In this way, after receiving the request message, the server can determine which one of the plurality of IP broadcast intelligent distributors the bidirectional service downlink data packet responding to the request message is sent to according to the distributor identifier in the request message, and then send the bidirectional service downlink data packet to the IP broadcast intelligent distributor corresponding to the distributor identifier.
In one possible implementation, the bidirectional traffic downstream packet, the tagged packet and the request packet are generated based on the TCP/HTTP protocol.
In the implementation mode, the data packet types of the bidirectional service downlink data packet and the marked data packet are consistent, so that the transmission process of the data packet can be simplified, the time waste caused by the need of data packet type conversion is avoided, and the transmission efficiency is reduced.
In one possible implementation manner, the IP broadcast intelligent distributor is a local network processing device, and can parse, process and encapsulate a downlink UDP message, a TCP message and an HTTP message, and finally aggregate the downlink UDP message, the TCP message and the HTTP message to a tera-meganetwork port to be sent out; the UDP request data packet for carrying out the bidirectional service request received by the uplink can be unpacked and then forwarded to the server.
In one possible implementation, the server may include a video on demand server, an internet application service platform, etc., based on UDP protocol, TCP protocol, HTTP protocol.
Fig. 2 illustrates a schematic structure of an I-PON based multimedia data service processing system according to an embodiment of the present disclosure. In one possible implementation, as shown in fig. 2, the I-PON unidirectional broadcast optical fiber network 60 may include an optical amplifier 601, an optical splitter 602, and an optical fiber cable (not shown).
In one possible implementation, as shown in fig. 2, to implement the transmission of UDP request data packets over a bidirectional data network, the system may further include a switch 402. The bi-directional data network 40 may include an optical line terminal (optical line terminal, OLT for short) 401, equipment for connecting to the fiber optic trunk. After sending the UDP request data packet, the network processor transmits the UDP request data packet to the IP broadcasting intelligent distributor through the OLT and the switch. The bi-directional data network may be an EPON/GPON/10G xPON bi-directional fiber optic network, a coaxial EOC/DOCSIS bi-directional network, a wireless communication network, or an ethernet network, etc., which is not limited by the present disclosure.
In one possible implementation, repackaging and encapsulating the bidirectional service request sent by the terminal 30 into a UDP request packet may include:
The gateway identifier is added to the bidirectional service request from the terminal 30, and the UDP request packet is generated by repackaging and encapsulation, where the bidirectional service request includes request information and the terminal identifier.
In this implementation, the bidirectional service request may not be parsed, and after the gateway identifier is directly added, the packet is encapsulated into a UDP request packet to be sent out.
In one possible implementation manner, after the IP broadcast intelligent distributor 10 receives the bidirectional service downlink data packet returned by the server 50 in response to the request packet, the bidirectional service downlink data packet may be marked directly by using the terminal identifier and the gateway identifier recorded before, and the obtained marked data packet is broadcast and sent to the gateway through the I-PON unidirectional broadcast optical fiber network. The IP broadcast receiving module receives various data packets sent from the I-PON unidirectional broadcast optical fiber network, and after identifying the marked data packet carrying the gateway identification, the IP broadcast receiving module can determine that the data packet is required by a subordinate terminal, and then sends the data packet to a corresponding terminal according to the terminal identification in the marked data packet.
In one possible implementation manner, as shown in fig. 2, when the IP broadcast receiving module 202 determines that the received marked data packet carries the gateway identifier, the gateway 20 sends the marked data packet to the terminal 30 corresponding to the terminal identifier in the marked data packet, which may include:
The IP broadcast receiving module 202, when determining that the received marked data packet carries the gateway identifier, sends the marked data packet to the terminal 30 corresponding to the terminal identifier in the marked data packet (as shown by a single-line arrow in fig. 2, a data transmission process).
In one possible implementation manner, as shown in fig. 2, when the IP broadcast receiving module 202 determines that the received marked data packet carries the gateway identifier, the gateway 20 sends the marked data packet to the terminal 30 corresponding to the terminal identifier in the marked data packet, which may include:
when the IP broadcast receiving module 202 determines that the received marked data packet carries the gateway identifier, performing address conversion on the marked data packet, and sending the obtained converted data packet to the network processor 201; the network processor 201 transmits the converted data packet to the terminal 30 corresponding to the terminal identification (data transmission process shown by double-line arrow in fig. 2).
In this implementation, address conversion performed by the IP broadcast receiving module on the marked data packet may include: and converting the source MAC address in the marked data packet into the MAC address of the IP broadcast receiving module to obtain a converted data packet, and transmitting the converted data packet to a terminal corresponding to the terminal identifier by the network processor.
Fig. 3 shows a flowchart of a multimedia data service processing method based on an I-PON according to an embodiment of the present disclosure. As shown in fig. 3, the method is applied to the above-mentioned IP broadcasting intelligent distributor, and the method includes steps S11 to S14.
In step S11, a UDP request packet sent by a network processor of a gateway is received through a bidirectional data network, where the UDP request packet is formed by repackaging and encapsulating a bidirectional service request sent by a terminal by the network processor, and the UDP request packet includes a gateway identifier of the gateway, a terminal identifier of the terminal, and request information of the bidirectional service request, and the bidirectional service request is generated based on a TCP/HTTP protocol.
In step S12, the IP broadcasting intelligent distributor as a bidirectional service agent of the terminal decapsulates the UDP request packet to obtain the request information, the terminal identifier and the gateway identifier, records the terminal identifier and the gateway identifier, generates a request packet according to the request information and the distributor identifier, and sends the request packet to a server, so that the server determines downlink data requested by the terminal according to the request packet, and generates a bidirectional service downlink packet to be sent to the IP broadcasting intelligent distributor according to the downlink data.
In step S13, the bidirectional service downlink data packet is received, and the terminal identifier and the gateway identifier are used to mark the bidirectional service downlink data packet, so as to obtain a marked data packet.
In step S14, the marked data packet is sent to the gateway through an I-PON unidirectional broadcast optical network, so that when the IP broadcast receiving module of the gateway determines that the marked data packet carries the gateway identifier, the gateway sends the marked data packet to a terminal corresponding to the terminal identifier in the marked data packet. And the bidirectional service downlink data packet is consistent with the data packet type of the marked data packet.
In one possible implementation, the distributor identification includes an IP address of the IP broadcast intelligent distributor and/or a MAC address of the IP broadcast intelligent distributor.
In one possible implementation, the bidirectional traffic downstream packet, the tagged packet and the request packet are generated based on the TCP/HTTP protocol.
The steps S11 to S14 executed by the IP broadcast intelligent distributor may be understood with reference to the operations executed by the IP broadcast intelligent distributor in the I-PON-based multimedia data service processing system, which are not described herein.
According to the multimedia data service processing method based on the I-PON, which is applied to the IP broadcasting intelligent distributor, after the IP broadcasting intelligent distributor receives the UDP request data packet generated by repackaging and packaging the bidirectional service request sent by the terminal through the bidirectional data network, the request packet is generated after unpacking to request the bidirectional service downlink data to the server, the bidirectional service downlink data packet fed back by the server is directly sent to the gateway through the I-PON unidirectional broadcasting optical fiber network to be finally sent to the terminal, the bidirectional service downlink data does not occupy the bidirectional data network any more, the bidirectional service downlink data transmission efficiency and the speed are improved, meanwhile, the bidirectional data network and the I-PON unidirectional broadcasting optical fiber network are well compatible, and the advantages of convenience and smoothness in large data transmission, more abundant program content and the like of OTT can be fully exerted.
Fig. 4 shows a flowchart of a multimedia data service processing method based on an I-PON according to an embodiment of the present disclosure. As shown in fig. 4, the method is applied to a gateway including a network processor and an IP broadcast receiving module. The method comprises step S21 and step S22.
In step S21, the bidirectional service request sent by the terminal is repackaged and encapsulated into a UDP request packet by using the network processor, and the UDP request packet is sent to the IP broadcast intelligent distributor through the bidirectional data network, where the UDP request packet includes the gateway identifier of the gateway, the terminal identifier of the terminal, and the request information of the bidirectional service request, and the bidirectional service request is generated based on the TCP/HTTP protocol.
In step S22, the IP broadcast receiving module is used to receive the marked data packet from the IP broadcast intelligent distributor, when it is determined that the marked data packet carries the gateway identifier, the gateway sends the marked data packet to a terminal corresponding to the terminal identifier in the marked data packet,
after receiving the UDP request packet, the IP broadcast intelligent distributor de-encapsulates the UDP request packet as a bidirectional service agent of the terminal to obtain the request information, the terminal identifier and the gateway identifier, records the terminal identifier and the gateway identifier, generates a request packet according to the request information and the distributor identifier, and sends the request packet to a server, so that the server determines downlink data requested by the terminal according to the request packet, and generates a bidirectional service downlink data packet to be sent to the IP broadcast intelligent distributor according to the downlink data; and marking the received bidirectional service downlink data packet by using the terminal identifier and the gateway identifier to obtain the marked data packet, wherein the bidirectional service downlink data packet is consistent with the marked data packet in type.
In one possible implementation manner, the network processor is used to repackage and encapsulate the bidirectional service request sent by the terminal into a UDP request packet, including:
adding the gateway identification to a bidirectional service request from the terminal by the network processor, repackaging and packaging to generate the UDP request data packet, wherein the bidirectional service request comprises request information and the terminal identification,
the terminal identification comprises an IP address and an MAC address of the terminal, and the gateway identification comprises the MAC address of the gateway and/or the MAC address of the IP broadcast receiving module.
In one possible implementation manner, the gateway sends the marked data packet to a terminal corresponding to a terminal identifier in the marked data packet, including:
and transmitting the marked data packet to a terminal corresponding to the terminal identifier in the marked data packet by using the IP broadcast receiving module.
In one possible implementation manner, the gateway sends the marked data packet to a terminal corresponding to a terminal identifier in the marked data packet, including:
address conversion is carried out on the marked data packet by utilizing the IP broadcast receiving module, and the obtained converted data packet is sent to the network processor;
And transmitting the converted data packet to a terminal corresponding to the terminal identifier by using the network processor.
In one possible implementation, the bidirectional traffic downstream packet, the tagged packet and the request packet are generated based on the TCP/HTTP protocol.
The steps S21 and S22 executed by the gateway may be understood with reference to the operations executed by the gateway in the I-PON-based multimedia data service processing system, which are not described herein.
According to the multimedia data service processing method based on the I-PON, which is provided by the embodiment of the disclosure, the gateway repacks and encapsulates the bidirectional service request sent by the terminal into the UDP request data packet and sends the UDP request data packet to the IP broadcasting intelligent distribution machine through the bidirectional data network, the IP broadcasting intelligent distribution machine requests bidirectional service downlink data to the server, the IP broadcasting intelligent distribution machine is utilized to mark the bidirectional service downlink data packet fed back by the server and then sends the bidirectional service downlink data packet to the gateway through the I-PON unidirectional broadcasting optical fiber network to finally be sent to the terminal, the bidirectional service downlink data does not occupy the bidirectional data network any more, the bidirectional service downlink data transmission efficiency and the speed are improved, meanwhile, the bidirectional data network and the I-PON unidirectional broadcasting optical fiber network are well compatible, and the advantages of convenience and smoothness in large data transmission, more abundant program content and the like of OTT can be fully exerted.
It should be noted that, although the method and system for processing a multimedia data service based on an I-PON are described above by taking the above embodiments as examples, it will be understood by those skilled in the art that the present disclosure should not be limited thereto. In fact, the user can flexibly set the system composition and the method steps according to personal preference and/or practical application scene, so long as the technical scheme of the disclosure is met.
The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement of the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. An I-PON-based multimedia data service processing system is characterized in that the system is applied to a network system with a unidirectional channel and a bidirectional channel separated, the system comprises an IP broadcast intelligent distributor and a gateway, the gateway comprises a network processor and an IP broadcast receiving module,
The network processor is configured to repackage and encapsulate a bidirectional service request sent by a terminal into a UDP request packet, and send the UDP request packet to the IP broadcast intelligent distributor through a bidirectional data network, where the UDP request packet includes an IP address and a MAC address of the terminal, a MAC address of a gateway, and request information of the bidirectional service request, the bidirectional service request is generated based on a TCP/HTTP protocol, and the bidirectional channel is provided by the bidirectional data network;
the IP broadcasting intelligent distributor is used as a bidirectional service proxy of the terminal, and is configured to decapsulate the UDP request packet to obtain the request information, an IP address and an MAC address of the terminal, and an MAC address of the gateway, record the IP address and the MAC address of the terminal, and generate a request packet according to the request information, the IP address of the IP broadcasting intelligent distributor, and the MAC address of the IP broadcasting intelligent distributor, and send the request packet to a server, so that the server determines downlink data requested by the terminal according to the request packet, and generates a bidirectional service downlink packet to be sent to the IP broadcasting intelligent distributor according to the downlink data, where the request packet includes the IP address of the IP broadcasting intelligent distributor and the MAC address of the IP broadcasting intelligent distributor; and
The bidirectional service downlink data packet is received, the IP address and the MAC address of the terminal and the MAC address of the gateway are utilized to mark the bidirectional service downlink data packet, the obtained marked data packet is sent to the gateway through an I-PON unidirectional broadcast optical fiber network, the types of the bidirectional service downlink data packet and the data packet of the marked data packet are consistent, the marked data packet comprises the IP address and the MAC address of the terminal and the MAC address of the gateway, and the unidirectional channel is provided by the I-PON unidirectional broadcast optical fiber network;
when the IP broadcast receiving module judges that the received marked data packet carries the MAC address of the gateway, the gateway sends the marked data packet to a terminal corresponding to the IP address and the MAC address of the terminal in the marked data packet;
when the IP broadcast receiving module determines that the received marked data packet carries the MAC address of the gateway, the gateway sends the marked data packet to a terminal corresponding to the IP address and the MAC address of the terminal in the marked data packet, including: when judging that the received marked data packet carries the MAC address of the gateway, the IP broadcast receiving module performs address conversion on the marked data packet and sends the obtained converted data packet to the network processor; and the network processor sends the converted data packet to a terminal corresponding to the IP address and the MAC address of the terminal.
2. The system of claim 1, wherein repackaging the bidirectional traffic request sent by the terminal into a UDP request packet comprises:
and adding the MAC address of the gateway in a bidirectional service request from the terminal, and repackaging and packaging to generate the UDP request data packet, wherein the bidirectional service request comprises request information, the IP address and the MAC address of the terminal.
3. The system of claim 1, wherein the IP broadcast receiving module, when determining that the received marked data packet carries the MAC address of the gateway, the gateway sends the marked data packet to a terminal corresponding to the IP address and the MAC address of the terminal in the marked data packet, including:
and when judging that the received marked data packet carries the MAC address of the gateway, the IP broadcast receiving module sends the marked data packet to a terminal corresponding to the IP address and the MAC address of the terminal in the marked data packet.
4. The system of claim 1, wherein the bidirectional traffic downstream data packet, the tagged data packet, and the request message are generated based on a TCP/HTTP protocol.
5. An I-PON based multimedia data service processing method, wherein the method is applied to an IP broadcast intelligent distributor, the IP broadcast intelligent distributor being in a network system in which a unidirectional channel and a bidirectional channel are separated, the method comprising:
receiving a UDP request data packet sent by a network processor of a gateway through a bidirectional data network, wherein the UDP request data packet is formed by repackaging and packaging a bidirectional service request sent by a terminal by the network processor, the UDP request data packet comprises a MAC address of the gateway, an IP address and a MAC address of the terminal and request information of the bidirectional service request, the bidirectional service request is generated based on a TCP/HTTP protocol, and the bidirectional channel is provided by the bidirectional data network;
the bidirectional service agent serving as the terminal de-encapsulates the UDP request data packet to obtain the request information, the IP address and the MAC address of the terminal, the MAC address of the gateway, records the IP address and the MAC address of the terminal, the MAC address of the gateway, and generates a request message according to the request information, the IP address of the IP broadcasting intelligent distributor and the MAC address of the IP broadcasting intelligent distributor, and sends the request message to a server, so that the server determines downlink data requested by the terminal according to the request message, and generates a bidirectional service downlink data packet which needs to be sent to the IP broadcasting intelligent distributor according to the downlink data, wherein the request message comprises the IP address of the IP broadcasting intelligent distributor and the MAC address of the IP broadcasting intelligent distributor;
The bidirectional service downlink data packet is received, and marked by the IP address and the MAC address of the terminal and the MAC address of the gateway to obtain a marked data packet, wherein the marked data packet comprises the IP address and the MAC address of the terminal and the MAC address of the gateway;
the marked data packet is sent to the gateway through an I-PON unidirectional broadcast optical fiber network, so that when the IP broadcast receiving module of the gateway judges that the marked data packet carries the MAC address of the gateway, the marked data packet is subjected to address conversion and the obtained converted data packet is sent to a network processor of the gateway, the gateway sends the marked data packet to a terminal corresponding to the IP address and the MAC address of the terminal in the marked data packet, and the unidirectional channel is provided by the I-PON unidirectional broadcast optical fiber network;
and the bidirectional service downlink data packet is consistent with the data packet type of the marked data packet.
6. The method of claim 5, wherein the bidirectional traffic downstream data packet, the tagged data packet, and the request message are generated based on a TCP/HTTP protocol.
7. An I-PON based multimedia data service processing method, wherein the method is applied to a gateway including a network processor and an IP broadcast receiving module, the gateway being in a network system in which a unidirectional channel and a bidirectional channel are separated, the method comprising:
repackaging and packaging a bidirectional service request sent by a terminal into a UDP request data packet by using the network processor, and sending the UDP request data packet to an IP broadcast intelligent distributor through a bidirectional data network, wherein the UDP request data packet comprises a gateway MAC address, a terminal IP address and MAC address and request information of the bidirectional service request, the bidirectional service request is generated based on a TCP/HTTP protocol, and the bidirectional channel is provided by the bidirectional data network;
the method comprises the steps that an IP broadcast receiving module is utilized to receive a marked data packet sent by an IP broadcast intelligent distributor through an I-PON unidirectional broadcast optical fiber network, when judging that the marked data packet carries the MAC address of a gateway, the gateway sends the marked data packet to a terminal corresponding to the IP address and the MAC address of the terminal in the marked data packet, the unidirectional channel is provided by the I-PON unidirectional broadcast optical fiber network, and the marked data packet comprises the IP address and the MAC address of the terminal and the MAC address of the gateway;
After receiving the UDP request packet, the IP broadcast intelligent distributor de-encapsulates the UDP request packet as a bidirectional service agent of the terminal to obtain the request information, an IP address and an MAC address of the terminal, an MAC address of the gateway, record the IP address and the MAC address of the terminal, and generate a request packet according to the request information, the IP address of the IP broadcast intelligent distributor, and the MAC address of the IP broadcast intelligent distributor, where the request packet includes the IP address of the IP broadcast intelligent distributor and the MAC address of the IP broadcast intelligent distributor, and send the request packet to a server, so that the server determines downlink data requested by the terminal according to the request packet, and generates a bidirectional service downlink data packet to be sent to the IP broadcast intelligent distributor according to the downlink data; the IP address and the MAC address of the terminal and the MAC address of the gateway are utilized to mark the received bidirectional service downlink data packet to obtain the marked data packet, the bidirectional service downlink data packet is consistent with the marked data packet in type, and the marked data packet comprises the IP address and the MAC address of the terminal and the MAC address of the gateway;
The gateway sends the marked data packet to a terminal corresponding to an IP address and a MAC address of the terminal in the marked data packet, and the method comprises the following steps: address conversion is carried out on the marked data packet by utilizing the IP broadcast receiving module, and the obtained converted data packet is sent to the network processor; and transmitting the converted data packet to a terminal corresponding to the IP address and the MAC address of the terminal by using the network processor.
8. The method of claim 7, wherein repackaging the bidirectional traffic request sent by the terminal into the encapsulated UDP request packet using the network processor, comprises:
and adding the MAC address of the gateway in a bidirectional service request from the terminal by using the network processor, and repackaging and packaging to generate the UDP request data packet, wherein the bidirectional service request comprises request information, the IP address and the MAC address of the terminal.
9. The method of claim 7, wherein the gateway sending the tagged data packet to a terminal corresponding to an IP address and a MAC address of the terminal in the tagged data packet, comprises:
And transmitting the marked data packet to a terminal corresponding to the IP address and the MAC address of the terminal in the marked data packet by using the IP broadcast receiving module.
10. The method of claim 7, wherein the bidirectional traffic downstream data packet, the tagged data packet, and the request message are generated based on a TCP/HTTP protocol.
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