CN114095805A - Data service processing method and system based on I-PON - Google Patents
Data service processing method and system based on I-PON Download PDFInfo
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- CN114095805A CN114095805A CN202010750273.3A CN202010750273A CN114095805A CN 114095805 A CN114095805 A CN 114095805A CN 202010750273 A CN202010750273 A CN 202010750273A CN 114095805 A CN114095805 A CN 114095805A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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Abstract
The disclosure relates to a data service processing method and system based on an I-PON. The method is applied to an IP broadcast receiving module of a gateway, and comprises the following steps: according to a program data request sent by a terminal, determining a UDP multicast IP destination address, a UDP destination port number and a first PID code corresponding to the program data requested by the terminal; analyzing and screening UDP data packets in a program stream received through an I-PON unidirectional broadcast optical fiber network, and determining a first UDP data packet corresponding to an IP destination address and a UDP destination port number; filtering and screening target TS data packets consistent with the first PID code from TS data packets in the first UDP data packets; and the target TS data packet is encapsulated again to obtain a second UDP data packet, and the second UDP data packet is sent to the terminal, so that the occupied bandwidth is small, unnecessary waste of the bandwidth in the home local area network is avoided, and the bandwidth pressure in the home local area network is relieved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and a system for processing a data service based on an I-PON.
Background
In 3 months in 2017, the State News publishing television and television Central office formally releases GY/T306.1-2017 part 1 of technical specification of Cable television network fiber to the Home System: general technical requirements, wherein the I-PON scheme is included as one of typical application schemes. The I-PON system scheme is a fiber-to-the-home technical scheme based on a gigabit IP broadcast technology and a bidirectional IP technology, the gigabit IP broadcast technology applies a gigabit Ethernet technology to a unidirectional broadcast network, the defects brought by the traditional radio frequency technology are eliminated, the space interference problem and the frequency point limitation are avoided, and the bandwidth can be expanded from 10G to 20G, 40G and 100G along with the continuous upgrading of an IP broadcast receiving module. The bidirectional IP technology may be an EPON (Ethernet Passive Optical Network), a GPON (Gigabit-Cable PON), a 10G xPON bidirectional Optical Network, a coaxial eoc (Ethernet Over Cable)/docsis (data Over Cable Service Interface specifications) technology, a wireless communication Network, or an Ethernet technology.
In the related art, TS (transport stream) stream data of a program is sent to a gateway in a broadcast manner by using UDP data packets as carriers, the gateway sends UDP data packets in which TS stream data required by a user is located to a terminal used by the user, and the terminal parses TS data packets of the program to be watched from a plurality of received TS data packets of the UDP data packets, so as to play the program for the user to watch. However, in this way, the transmission of UDP packets occupies unnecessary bandwidth, which causes bandwidth shortage and waste in the home lan. How to effectively relieve the bandwidth pressure in the home local area network and avoid unnecessary bandwidth waste becomes an important problem that needs to be solved.
Disclosure of Invention
In view of the above, to solve the above technical problem, the present disclosure provides a data service processing method and system based on an I-PON.
According to an aspect of the present disclosure, there is provided an I-PON-based data service processing method applied to an IP broadcast receiving module of a gateway, the method including:
determining request information corresponding to program data requested by a terminal according to a program data request sent by the terminal, wherein the request information comprises a UDP multicast IP destination address, a UDP destination port number and a first PID code;
analyzing and screening UDP data packets in a program stream received through an I-PON unidirectional broadcast optical fiber network, and determining first UDP data packets corresponding to the IP destination address and the UDP destination port number from the UDP data packets, wherein each UDP data packet at most comprises 7 TS data packets;
filtering out target TS data packets consistent with the first PID code from TS data packets in the first UDP data packets, and discarding other TS data packets except the target TS data packets in the first UDP data packets;
and repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal.
In one possible implementation, the first PID code includes one or more PID codes,
when the first PID code includes a plurality of PID codes, the plurality of PID codes include a plurality of different PID codes corresponding to at least two types, or the plurality of PID codes include a plurality of different PID codes corresponding to the same type.
In one possible implementation, the header of each TS packet carries a corresponding second PID code,
wherein, filtering out the target TS data packets consistent with the first PID code from the TS data packets in the first UDP data packet comprises:
and determining a TS data packet with a second PID code consistent with the first PID code in the TS data packet in the first UDP data packet as a target TS data packet.
In a possible implementation manner, repackaging the target TS packet to obtain a second UDP packet includes:
and encapsulating and packaging the target TS data packet based on the regenerated UDP packet header to form the second UDP data packet.
In one possible implementation, the request information further includes a terminal identifier of the terminal,
wherein, repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal, includes:
transmitting the second UDP packet to a terminal corresponding to the terminal identification,
wherein the sending of the second UDP packet is realized based on the IPv4 protocol or the IPv6 protocol.
According to another aspect of the present disclosure, there is provided an I-PON based data traffic processing system, the system including: a gateway, an I-PON unidirectional broadcast optical fiber network and a terminal, wherein the gateway comprises an IP broadcast receiving module,
the terminal is used for generating a program data request according to request information corresponding to program data to be requested and sending the program data request to the IP broadcast receiving module, wherein the request information comprises a UDP multicast IP destination address, a UDP destination port number and a first PID code;
the IP broadcast receiving module is used for determining request information corresponding to the program data requested by the terminal according to the program data request;
analyzing and screening UDP data packets in the program stream received through the I-PON unidirectional broadcast optical fiber network, and determining first UDP data packets corresponding to the IP destination address and the UDP destination port number from the UDP data packets, wherein each UDP data packet at most comprises 7 TS data packets;
filtering out target TS data packets consistent with the first PID code from TS data packets in the first UDP data packets, and discarding other TS data packets except the target TS data packets in the first UDP data packets;
repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal;
and the terminal is also used for playing the program according to the received second UDP data packet.
In one possible implementation, the first PID code includes one or more PID codes,
when the first PID code includes a plurality of PID codes, the plurality of PID codes include a plurality of different PID codes corresponding to at least two types, or the plurality of PID codes include a plurality of different PID codes corresponding to the same type.
In one possible implementation, the header of each TS packet carries a corresponding second PID code,
wherein, the filtering and screening out the target TS data packets consistent with the first PID code from the TS data packets in the first UDP data packet comprises:
and determining a TS data packet with a second PID code consistent with the first PID code in the TS data packet in the first UDP data packet as a target TS data packet.
In a possible implementation manner, repackaging the target TS packet to obtain a second UDP packet includes:
and encapsulating and packaging the target TS data packet based on the regenerated UDP packet header to form the second UDP data packet.
In one possible implementation, the request information further includes a terminal identifier of the terminal,
wherein, repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal, includes:
transmitting the second UDP packet to a terminal corresponding to the terminal identification,
wherein the sending of the second UDP packet is realized based on the IPv4 protocol or the IPv6 protocol.
According to the data service processing method and system based on the I-PON, a UDP multicast IP destination address, a UDP destination port number and a first PID code corresponding to program data requested by a terminal are determined according to a program data request sent by the terminal; analyzing and screening UDP data packets in the program stream received through the I-PON unidirectional broadcast optical fiber network, and determining a first UDP data packet corresponding to the IP destination address and the UDP destination port number from the UDP data packets; filtering out target TS data packets consistent with the first PID code from TS data packets in the first UDP data packets, and discarding other TS data packets except the target TS data packets in the first UDP data packets; and repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal.
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 disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 shows a flowchart of an I-PON based data traffic processing method according to an embodiment of the present disclosure.
Fig. 2 illustrates a schematic structure of a UDP packet and a TS packet according to an embodiment of the present disclosure.
Fig. 3 shows a schematic diagram of an I-PON based data traffic processing system according to an embodiment of the present disclosure.
Fig. 4 is a schematic diagram illustrating an application scenario of an I-PON based data traffic processing system according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively 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.
Furthermore, in the following detailed description, numerous specific details are set forth 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 that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Fig. 1 shows a flowchart of an I-PON based data traffic processing method according to an embodiment of the present disclosure. As shown in fig. 1, the method is applied to an IP broadcasting Receiving Module (IPRM) of a gateway, and includes steps S11 to S14.
In step S11, request information corresponding to the program data requested by the terminal is determined according to a program data request sent by the terminal, where the request information includes a UDP multicast IP destination address (also referred to as an IP destination address for short), a UDP destination port number, and a first PID code.
In this embodiment, the gateway may be an I-PON home gateway, the gateway may receive various service requests of all subordinate terminals, and communication and data transmission are implemented between the gateway and the terminals through a local area network such as a home local area network. The terminal may be a set top box, an intelligent television, a mobile terminal (such as a smart phone, a tablet computer, etc.), and the like, which are capable of sending a service request, and the disclosure does not limit this. The program data request includes request information, and the request information is used for indicating relevant information of a program to be requested by the terminal.
In this embodiment, the PID (packet identifier) code is an identification code of a packet or data packet in the data stream of the digital satellite tv program transmission, and includes a video PID code, an audio PID code, and a clock synchronization PID code (i.e., a PCR PID code). According to the difference of PID codes, different programs and the type of data of the data packet carrying the PID codes can be distinguished.
In one possible implementation, the first PID code may include one or more PID codes. When the first PID code includes a plurality of PID codes, the plurality of PID codes may include a plurality of different PID codes corresponding to at least two types, or the plurality of PID codes may also include a plurality of different PID codes corresponding to the same type.
For example, for a certain program Q, the program data includes audio data and video data, and the PID codes corresponding to the audio data and the video data are numbered in different encoding manners, assuming that the PID code of the audio data of the program Q is 3559 and the PID code of the video data is 2100, if the audio data and the video data of the program Q are to be obtained, the first PID code in the program data request sent by the terminal is "2100" and "3559". Assuming another program P with audio data PID code 3808 and video data PID code 8191, if the audio data of program Q and program P are to be obtained, the first PID code in the program data request transmitted by the terminal includes "3559" and "3808".
In step S12, UDP packets in the program stream received through the I-PON unidirectional broadcast optical fiber network are parsed and screened, and first UDP packets corresponding to the IP destination address and the UDP destination port number are determined from the UDP packets, where each UDP packet includes at most 7 ts (transport stream) packets.
In one possible implementation, the header of each TS packet carries a corresponding second PID code. Wherein, filtering out the TS packets in the first UDP packet to obtain the target TS packets that are consistent with the first PID code may include: and determining a TS data packet with a second PID code consistent with the first PID code in the TS data packet in the first UDP data packet as a target TS data packet.
In this embodiment, the I-PON unidirectional broadcast optical network may include an optical amplifier, an optical splitter, and an optical fiber cable. The program stream received by the gateway through the I-PON unidirectional broadcast optical fiber network may be data sent by the server in a multicast manner, or may also be data from the server forwarded by the head end switch in a multicast manner. The server can comprise a live broadcast platform based on a protocol such as UDP (user datagram protocol), a video-on-demand server based on a protocol such as TCP (transmission control protocol), HTTP (hyper text transport protocol) and the like, an internet application server, an internet application service platform and the like. The head-end switch may be a switch located at a server end, and may be configured with a forwarding policy, and may send program stream data to a unidirectional broadcast optical fiber network, and then to a gateway.
Fig. 2 illustrates a schematic structure of a UDP packet and a TS packet according to an embodiment of the present disclosure. As shown in fig. 2, a UDP packet includes an 8-byte UDP header containing an IP destination address and a UDP destination port number. The length of the maximum payload portion of a UDP packet is 188 × 7-1316 bytes. Since TS packets have a length of 4+ 184-188 bytes, when the payload of one UDP packet is used, 7 TS packets can be carried. For one TS data packet, which includes a 4-byte TS header and a 184-byte TS payload, the TS header carries a second PID code (shown as a "PID" with a length of 13 bits in fig. 2).
In step S13, a target TS packet matching the first PID code is filtered out from the TS packets in the first UDP packet, and other TS packets except the target TS packet in the first UDP packet are discarded.
In step S14, the target TS packet is re-encapsulated to obtain a second UDP packet, and the second UDP packet is sent to the terminal.
In this embodiment, the gateway may send the second UDP packet to the terminal through the local area network. And after receiving the second UDP data packet, the terminal analyzes the second UDP data packet to obtain a target TS data packet, and further plays the program for the user.
In a possible implementation manner, repackaging the target TS packet to obtain a second UDP packet may include: and encapsulating and packaging the target TS data packet based on the regenerated UDP packet header to form the second UDP data packet.
Therefore, the second UDP data packet generated by repackaging only includes the target TS data packet required by the user of the terminal, and the rest TS data packets not required by the terminal are discarded, compared with the prior art in which the first UDP data packet is directly sent to the terminal, the bandwidth occupied for sending the second UDP data packet is obviously less, the bandwidth pressure of the local area network is relieved, and since the transmitted second UDP data packet only includes the target TS data packet required by the terminal, the effective utilization rate of the bandwidth is significantly improved, and unnecessary bandwidth waste is avoided (in the prior art, the first UDP data packet is directly transmitted, except for the target TS data packet, the transmission of other TS data packets is waste of the bandwidth). And because the second UDP data packet is smaller, the data transmission speed is naturally increased, the speed of the gateway responding to the terminal program data request is increased, and better user watching experience is brought to the user.
According to a program data request sent by a terminal, determining a UDP multicast IP destination address, a UDP destination port number and a first PID code corresponding to program data requested by the terminal; analyzing and screening UDP data packets in the program stream received through the I-PON unidirectional broadcast optical fiber network, and determining a first UDP data packet corresponding to the IP destination address and the UDP destination port number from the UDP data packets; filtering out target TS data packets consistent with the first PID code from TS data packets in the first UDP data packets, and discarding other TS data packets except the target TS data packets in the first UDP data packets; and repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal.
In a possible implementation manner, the request information may further include a terminal identifier of the terminal. The repackaging the target TS packet to obtain a second UDP packet, and sending the second UDP packet to the terminal may include:
and sending the second UDP data packet to a terminal corresponding to the terminal identification. Wherein the sending of the second UDP packet is realized based on the IPv4 protocol or the IPv6 protocol.
In this embodiment, the terminal identifier can distinguish which one of the plurality of terminals under the gateway the program data request comes from specifically, the terminal identifier may include an IP address and a MAC address of the terminal, and may further include a mark such as a number of the terminal in the gateway, 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 can be locked based on the IP address and the MAC address. Assuming that 5 terminals can all send program data requests to the gateway, the 5 terminals can be numbered in advance, for example, 1, 2, 3, 4, and 5, respectively, and then which of the 5 specific terminals is can be determined according to the numbers.
The present disclosure also provides a data service processing system based on an I-PON, which includes a gateway, an I-PON unidirectional broadcast optical network, and a terminal, where the gateway includes an IP broadcast receiving module. The specific working process of the system can be referred to the above related description of the data service processing method based on the I-PON.
The terminal is used for generating a program data request according to request information corresponding to program data to be requested, and sending the program data request to the IP broadcast receiving module, wherein the request information comprises a UDP multicast IP destination address, a UDP destination port number and a first PID code.
The IP broadcast receiving module is used for determining request information corresponding to the program data requested by the terminal according to the program data request;
analyzing and screening UDP data packets in the program stream received through the I-PON unidirectional broadcast optical fiber network, and determining first UDP data packets corresponding to the IP destination address and the UDP destination port number from the UDP data packets, wherein each UDP data packet at most comprises 7 TS data packets;
filtering out target TS data packets consistent with the first PID code from TS data packets in the first UDP data packets, and discarding other TS data packets except the target TS data packets in the first UDP data packets;
and repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal.
And the terminal is also used for playing the program according to the received second UDP data packet.
Compared with the prior art in which the first UDP data packet is directly sent to the terminal, the data service processing system based on the I-PON provided by the embodiment of the present disclosure occupies a small bandwidth, avoids unnecessary waste of bandwidth in the home lan, and relieves bandwidth pressure in the home lan.
Fig. 3 shows a schematic diagram of an I-PON based data traffic processing system according to an embodiment of the present disclosure. As shown in fig. 3, the system includes, in addition to the gateway, the I-PON unidirectional broadcast optical fiber Network, and the terminal (i.e. the gateway 20, the IP broadcast receiving module 202 of the gateway 20, the I-PON unidirectional broadcast optical fiber Network 60, and the terminal 30 in fig. 3), a head end switch 10, a server 50, and a bidirectional data Network 40, where the gateway 20 further includes a Network Processor (NP) 201.
The server 50 is configured to send the live program stream and the on-demand program stream to the head-end switch, and the head-end switch sends the live program stream and the on-demand program stream requested by the terminal 30 to the IP broadcast receiving module 202 through the I-PON unidirectional broadcast optical fiber network 60.
The program data request sent by the terminal 30 may be for a live program. For live programs, the server 50 encapsulates live data of different programs into a plurality of UDP packets as program streams, and sends the program streams in a multicast manner. The IP broadcast receiving module 202 performs the above-mentioned steps S11 to S14 upon receiving the program data request.
The terminal 30 may also perform transmission of request bidirectional service data through the bidirectional data network to complete the bidirectional service request. The terminal 30 may send a bidirectional service request, such as a request for data on demand, a request for internet data, etc., to the network processor 201, and the network processor 201 sends a request message generated based on the bidirectional service request through the bidirectional data network 40 based on the bidirectional service request. After receiving the request packet, the head-end switch 10 may send a data request to the server 50 as a proxy, or may directly forward the request packet to the server 50. The server 50 issues bidirectional service data in response to the data request or request message. The head end switch 10 determines when receiving the bidirectional service data, and when the bidirectional service data is the on-demand program data, the on-demand program data may be sent to the IP broadcast receiving module 202 through the I-PON unidirectional broadcast optical fiber network 60, and the IP broadcast receiving module 202 sends the on-demand program data to the corresponding terminal 30; when the bidirectional service data is internet data and/or on-demand interactive information, the internet data and/or on-demand interactive information may be sent to the network processor 201 through the bidirectional data network 40 via the bidirectional data network 40, and then the network processor 201 sends the internet data and/or on-demand interactive information to the corresponding terminal 30.
In one possible implementation, the first PID code may include one or more PID codes. When the first PID code includes a plurality of PID codes, the plurality of PID codes include a plurality of different PID codes corresponding to at least two types, or the plurality of PID codes include a plurality of different PID codes corresponding to the same type.
In one possible implementation, the header of each TS packet carries a corresponding second PID code. Wherein, filtering out target TS packets that are consistent with the first PID code from the TS packets in the first UDP packet may include:
and determining a TS data packet with a second PID code consistent with the first PID code in the TS data packet in the first UDP data packet as a target TS data packet.
In a possible implementation manner, repackaging the target TS packet to obtain a second UDP packet may include: and encapsulating and packaging the target TS data packet based on the regenerated UDP packet header to form the second UDP data packet.
In one possible implementation, the request information further includes a terminal identifier of the terminal,
wherein, repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal, includes:
transmitting the second UDP packet to a terminal corresponding to the terminal identification,
wherein the sending of the second UDP packet is realized based on the IPv4 protocol or the IPv6 protocol.
It should be noted that, although the data service processing method and system based on the I-PON are described above by taking the above embodiments as examples, those skilled in the art can understand that the disclosure should not be limited thereto. In fact, the user can flexibly set each step and each device according to personal preference and/or actual application scene, as long as the technical scheme of the disclosure is met.
Application example
An application example according to the embodiment of the present disclosure is given below in combination with "a user watches a live program through a mobile phone" as an exemplary application scenario, so as to facilitate understanding of the data service processing method and system based on the I-PON. It is to be understood by those skilled in the art that the following application examples are for the purpose of facilitating understanding of the embodiments of the present disclosure only and are not to be construed as limiting the embodiments of the present disclosure.
Fig. 4 is a schematic diagram illustrating an application scenario of an I-PON based data traffic processing system according to an embodiment of the present disclosure. As shown in fig. 4, the implementation process of "the user watches live programs through the mobile phone" according to the method and the system is as follows:
the mobile phone (also called a terminal) determines that a user wants to watch a live program M according to the detected operation of the user on the mobile phone, then determines request information according to the watching requirement of the user and generates a program data request according to the request information, wherein the request information comprises a UDP multicast IP destination address, a UDP destination port number and a first PID code corresponding to the live program M, and the first PID code comprises PID-1 and PID-2. And then the mobile phone sends the program data request to an IP broadcast receiving module of the gateway.
An IP broadcast receiving module of the gateway determines request information corresponding to the program data requested by the terminal according to the program data request; a plurality of UDP packets UDP1, UDP2 … UDPn-1 and UDPn in a program stream received through an I-PON unidirectional broadcast optical fiber network are analyzed and screened, and a first UDP packet 'UDP 2' corresponding to an IP destination address and a UDP destination port number is determined from the plurality of UDP packets. TS1 and TS6 (namely target TS data packets) which are consistent with PID-1 and PID-2 are filtered and screened out from 7 TS data packets TS1, TS2, TS3, TS4, TS5, TS6 and TS7 in UDP2, and other TS data packets TS2, TS3, TS4, TS5 and TS7 except TS1 and TS6 in UDP2 are discarded; and encapsulating and packaging the regenerated UDP new packet header, the TS1 and the TS6 to form a second UDP data packet 'UDP new packet'. And then sending the second UDP data packet 'UDP new packet' to the mobile phone through the local area network.
And after receiving the second UDP data packet 'UDP new packet', the mobile phone performs the playing of the prepared program M for the user to watch.
By the mode, occupied bandwidth is small, unnecessary waste of bandwidth in the home local area network is avoided, and bandwidth pressure in the home local area network is relieved.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques 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 data service processing method, applied to an IP broadcast receiving module of a gateway, the method comprising:
determining request information corresponding to program data requested by a terminal according to a program data request sent by the terminal, wherein the request information comprises a UDP multicast IP destination address, a UDP destination port number and a first PID code;
analyzing and screening UDP data packets in a program stream received through an I-PON unidirectional broadcast optical fiber network, and determining first UDP data packets corresponding to the IP destination address and the UDP destination port number from the UDP data packets, wherein each UDP data packet at most comprises 7 TS data packets;
filtering out target TS data packets consistent with the first PID code from TS data packets in the first UDP data packets, and discarding other TS data packets except the target TS data packets in the first UDP data packets;
and repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal.
2. The method of claim 1, wherein the first PID code comprises one or more PID codes,
when the first PID code includes a plurality of PID codes, the plurality of PID codes include a plurality of different PID codes corresponding to at least two types, or the plurality of PID codes include a plurality of different PID codes corresponding to the same type.
3. The method of claim 1, wherein the header of each TS packet carries a corresponding second PID code,
wherein, filtering out the target TS data packets consistent with the first PID code from the TS data packets in the first UDP data packet comprises:
and determining a TS data packet with a second PID code consistent with the first PID code in the TS data packet in the first UDP data packet as a target TS data packet.
4. The method of claim 1, wherein repackaging the target TS packet into a second UDP packet comprises:
and encapsulating and packaging the target TS data packet based on the regenerated UDP packet header to form the second UDP data packet.
5. The method of claim 1, wherein the request information further includes a terminal identification of the terminal,
wherein, repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal, includes:
transmitting the second UDP packet to a terminal corresponding to the terminal identification,
wherein the sending of the second UDP packet is realized based on the IPv4 protocol or the IPv6 protocol.
6. An I-PON based data traffic processing system, the system comprising: a gateway, an I-PON unidirectional broadcast optical fiber network and a terminal, wherein the gateway comprises an IP broadcast receiving module,
the terminal is used for generating a program data request according to request information corresponding to program data to be requested and sending the program data request to the IP broadcast receiving module, wherein the request information comprises a UDP multicast IP destination address, a UDP destination port number and a first PID code;
the IP broadcast receiving module is used for determining request information corresponding to the program data requested by the terminal according to the program data request;
analyzing and screening UDP data packets in the program stream received through the I-PON unidirectional broadcast optical fiber network, and determining first UDP data packets corresponding to the IP destination address and the UDP destination port number from the UDP data packets, wherein each UDP data packet at most comprises 7 TS data packets;
filtering out target TS data packets consistent with the first PID code from TS data packets in the first UDP data packets, and discarding other TS data packets except the target TS data packets in the first UDP data packets;
repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal;
and the terminal is also used for playing the program according to the received second UDP data packet.
7. The system of claim 6, wherein the first PID code comprises one or more PID codes,
when the first PID code includes a plurality of PID codes, the plurality of PID codes include a plurality of different PID codes corresponding to at least two types, or the plurality of PID codes include a plurality of different PID codes corresponding to the same type.
8. The system of claim 6, wherein the header of each TS packet carries a corresponding second PID code,
wherein, the filtering and screening out the target TS data packets consistent with the first PID code from the TS data packets in the first UDP data packet comprises:
and determining a TS data packet with a second PID code consistent with the first PID code in the TS data packet in the first UDP data packet as a target TS data packet.
9. The system of claim 6, wherein repackaging the target TS packet into a second UDP packet comprises:
and encapsulating and packaging the target TS data packet based on the regenerated UDP packet header to form the second UDP data packet.
10. The system of claim 6, wherein the request information further includes a terminal identification of the terminal,
wherein, repackaging the target TS data packet to obtain a second UDP data packet, and sending the second UDP data packet to the terminal, includes:
transmitting the second UDP packet to a terminal corresponding to the terminal identification,
wherein the sending of the second UDP packet is realized based on the IPv4 protocol or the IPv6 protocol.
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