CN113132386B

CN113132386B - Multi-protocol compatible guiding transmission sending and receiving method and device

Info

Publication number: CN113132386B
Application number: CN202110426081.1A
Authority: CN
Inventors: 李明齐; 卞鑫; 许春玲; 田金凤; 封松林
Original assignee: Shanghai Advanced Research Institute of CAS
Current assignee: Shanghai Advanced Research Institute of CAS
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2023-07-25
Anticipated expiration: 2041-04-20
Also published as: CN113132386A

Abstract

The multi-protocol compatible guiding transmission sending and receiving method and device of the invention guides the terminal to receive the user service indication information based on multi-transmission protocol transmission for providing service indication for each user service data by predefining and acquiring the relevant setting necessary session parameters by the sending terminal, thereby enabling the terminal to receive and acquire the user service transmitted by adopting different transmission protocols based on the user service indication information. The method can solve the problem of compatibility fusion of multiple independent transmission protocols between different standard systems, has small influence on the original standard technology, is simple to realize and low in complexity, and can improve the compatibility of the communication system to different transmission protocols.

Description

Multi-protocol compatible guiding transmission sending and receiving method and device

Technical Field

The present invention relates to the field of data transmission technologies, and in particular, to a method and an apparatus for transmitting and receiving a multi-protocol compatible pilot transmission.

Background

With the continuous enhancement of the informatization level, the arrival of the 5G age has become an irreversible technical trend, and the mutual integration level of the 5G mobile communication and the broadcast television field is also necessarily improved. The current mass media content provides more consumption options for users, and at the same time, the delivery and transmission of the content also faces new challenges. Therefore, the efficient and extensible data transmission technology oriented to 5G broadcasting is important to improving the network transmission efficiency and the user experience.

Asynchronous Layered Coding (LCT) is a large-scale scalable reliable content delivery protocol formulated by international organization for standardization IETF (Internet Engineering Task Force) that supports concurrent reliable asynchronous content delivery from a single sender to an unlimited number of terminals. Based on LCT protocol, IETF subsequently formulated FLUTE and ROUTE protocols for unidirectional file delivery. The FLUTE protocol has strong advantages in a large scale scalable broadcast/multicast file download delivery scenario, which has been applied in the IPDC (IP Datacast) solution of DVB-H and the solution of 3GPP cellular network MBMS (Multimedia Broadcast Multicast Service). The ROUTE protocol is a transport protocol suitable for unicast, broadcast, multicast scenarios, data and low latency streaming oriented applications, and has been adopted by the united states next generation broadcast television standard.

The intelligent media transmission (Smart Media Transport, SMT) protocol is a packet-switched-oriented multimedia transmission protocol being formulated in China, and has strong advantages in providing transmission and distribution services for media data in heterogeneous networks consisting of unidirectional networks and bidirectional networks. SMT protocols may support efficient distribution and transmission of media data including time-sequential media data (e.g., video, audio), non-time-sequential media data (e.g., text, pictures), and user feedback data (e.g., real-time instructions).

The MPEG media transport (MPEG media transport, MMT) protocol is a multimedia transport protocol adopted by the new generation digital terrestrial broadcasting standard in the united states, and has similar characteristics to the SMT protocol.

Since LCT-based FLUTE, ROUTE, etc. protocols have respective advantages with MMT, SMT protocols or MMT or SMT-based transport protocols, both will be applied for a long time in the future. However, at present, only FLUTE transmission protocols are supported in communication standards such as 3gpp 4G and 5G, but protocols such as ROUTE, MMT, SMT are not supported. When the network adopts multiple protocols to transmit multimedia services, the terminal lacks the capability of acquiring user service indication information such as service announcement SA files, service layer signaling SLS and the like transmitted by different protocols through a proper unified guiding method, and further fails to acquire corresponding user service data.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention aims to solve the problem that in the prior art, when a network adopts multiple protocols to transmit services, a receiving terminal, especially a terminal only supporting unidirectional reception, lacks a method capable of acquiring user service indication information by using a suitable unified guiding method to acquire information such as service notification and signaling transmitted by adopting different protocols, and further fails to acquire corresponding user service data.

To achieve the above and other related objects, the present invention provides a multi-protocol compatible bootstrapping transmission and reception method, applied to a terminal, the method comprising: establishing a transmission channel with at least one transmitting end; acquiring session parameters predefined for transmitting user service indications using different transmission protocols; the session parameters corresponding to each transmission protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification; based on the session parameters, receiving a protocol data packet from a transmitting end by adopting a corresponding transmission protocol on the special transmission address, and obtaining user service indication information according to a transmission session identifier or a transmission protocol packet identifier; and based on the user service indication information, respectively receiving the user service data from the sending end by adopting a corresponding transmission protocol.

In one embodiment of the present invention, the transmission protocol includes, but is not limited to: FLUTE, ROUTE, MMT and one or more of SMT protocols.

In an embodiment of the present invention, the method for obtaining the user service indication information based on the session parameter by receiving the protocol data packet from the transmitting end by using the corresponding transmission protocol at the dedicated transmission address and according to the transmission session identifier or the transmission protocol packet identifier includes: according to the transmission protocol identification, receiving a protocol data packet by adopting a corresponding transmission protocol on the special transmission address; if the protocol data packet is transmitted by adopting the FLUTE or the ROUTE, determining that the protocol data packet carries the user service indication information by comparing a received value of a Transmission Session Identification (TSI) in the received LCT packet with a preset value of the TSI; wherein, the preset value of the transmission session identification TSI of the session for transmitting the user service indication information is a set specific value; if the MMT or SMT protocol transmission is adopted, the received value of the packet_id is identified through a transmission protocol packet in the received MMTP packet or SMTP packet, and the received value is compared with a preset value of the packet_id, so that the user service indication information is carried in the protocol data packet; wherein, the preset value of the transport protocol packet identification packet_id of the application layer signaling for transmitting the user service indication information is a set specific value; and acquiring user service indication information in the protocol data packet.

In an embodiment of the present invention, a specific value set by the preset value of the transmission session indicator TSI is 0; and/or, the specific value set by the preset value of the packet_id of the transport protocol packet identifier is 0.

In an embodiment of the present invention, the method for acquiring session parameters predefined according to different transmission protocols includes: based on the direct acquisition path and/or the indirect acquisition path, acquiring session parameters predefined according to different transmission protocols; wherein the direct acquisition pathway comprises: directly acquiring from a terminal pre-stored with the session parameters, and/or pre-storing the session parameters in a terminal application to be provided for the terminal; the indirect acquisition pathway includes: indirectly through OMA PUSH distribution and/or HTTP servers.

In an embodiment of the present invention, the dedicated transport address and/or the indicated transport address include: IP address and/or UDP port number.

To achieve the above and other related objects, the present invention provides a method for transmitting a multi-protocol compatible bootstrapping transmission, applied to a transmitting end, the method comprising: user service indication information constructed to provide service indication for each user service data transmitted by adopting different transmission protocols; based on the session parameters and according to the transmission protocol identifiers, the user service indication information is encapsulated into protocol data packets, and the user service indication information is sent to the corresponding special transmission address through each transmission protocol and by adopting the predefined transmission session identifiers and/or the transmission protocol packet identifiers; and based on the user service indication information, distributing the user service data to the terminal through a corresponding transmission protocol.

In an embodiment of the present invention, the user service indication information includes: and the user service indication information is a ROM service announcement channel (ROM SACH) file and/or a Service Layer Signaling (SLS) terminal corresponding to the MMT and SMT protocols if the terminal is in a receiving-only mode (ROM).

To achieve the above and other related objects, the present invention provides a multi-protocol compatible bootstrapping transmission receiving apparatus, for use in a terminal, comprising: the network module is used for establishing a transmission channel with at least one transmitting end; an acquisition module for acquiring session parameters predefined for transmitting user service indications using different transmission protocols; the session parameters corresponding to each transmission protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification; the indication information receiving module is connected with the acquisition module and is used for receiving a protocol data packet from a transmitting end by adopting a corresponding transmission protocol on the special transmission address based on the session parameter, and acquiring user service indication information according to a transmission session identifier or a transmission protocol packet identifier; and the user service data receiving module is connected with the indication information receiving module and is used for respectively acquiring the user service data distributed by the transmitting end by adopting the corresponding transmission protocol based on the user service indication information.

To achieve the above and other related objects, the present invention provides a multi-protocol compatible guided transmission transmitting apparatus, applied to a transmitting end, comprising: the network module is used for establishing a transmission channel with at least one terminal; a session parameter predefining module for predefining session parameters for transmitting user service instructions using different transmission protocols; wherein the predefined session parameters corresponding to the user service indication of each transport protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification; the user service instruction information construction module is used for constructing user service instruction information for providing service instructions for all user service data transmitted by adopting different transmission protocols; the user service indication information sending module is connected with the session parameter predefining module and the user service indication information constructing module and is used for packaging the user service indication information into protocol data packets based on the session parameters, and sending the user service indication information to corresponding special transmission addresses through each transmission protocol and adopting a predefined transmission session identifier and/or a transmission protocol packet identifier; and the user service data distribution module is connected with the user service indication information construction module and is used for distributing the user service data to the terminal through the corresponding transmission protocol based on the user service indication information.

As described above, the method and apparatus for sending and receiving multi-protocol compatible guided transmission according to the present invention guide the receiving end to obtain the user service indication information transmitted by different transmission protocols based on the multi-transmission protocol, which provides service indication for each user service data, by obtaining the session parameters necessary for the relevant settings by the terminal. The method can solve the compatibility problem of multiple independent transmission protocols between different standard systems, has small influence on the original standard technology, is simple to realize and low in complexity, and can improve the compatibility of the communication system to different transmission protocols.

Drawings

FIG. 1 is a schematic view of an implementation environment in an embodiment of the present invention.

Fig. 2 is a flow chart of a multi-protocol compatible bootstrapping transmission and reception method according to an embodiment of the invention.

Fig. 3 is a schematic functional block diagram of a multi-protocol compatible bootstrapping transceiver according to an embodiment of the present invention.

Fig. 4 is a flow chart of a method for transmitting a multi-protocol compatible bootstrapping transmission according to an embodiment of the invention.

Fig. 5 is a schematic functional block diagram of a multi-protocol compatible bootstrapping transmission device according to an embodiment of the present invention.

Detailed Description

Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. The present application may be embodied or applied in other specific forms and details, and various modifications and alterations may be made to the details of the present application from a different perspective or perspective without departing from the spirit of the present application. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

The embodiments of the present application will be described in detail below with reference to the drawings so that those skilled in the art to which the present application pertains can easily implement the same. This application may be embodied in many different forms and is not limited to the embodiments described herein.

For the purpose of clarity of explanation of the present application, components not related to the explanation are omitted, and the same or similar components are given the same reference numerals throughout the specification.

Throughout the specification, when a component is said to be "connected" to another component, this includes not only the case of "direct connection" but also the case of "indirect connection" with other elements interposed therebetween. In addition, when a certain component is said to "include" a certain component, unless specifically stated to the contrary, it is meant that other components are not excluded, but other components may be included.

When an element is referred to as being "on" another element, it can be directly on the other element but be accompanied by the other element therebetween. When a component is stated to be "directly on" another component, it is stated that there are no other components between them.

Although the terms first, second, etc. may be used herein to describe various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Such as a first interface and a second interface, etc. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or" and/or "as used herein are to be construed as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; A. b and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the language clearly indicates the contrary. The meaning of "comprising" in the specification is to specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but does not preclude the presence or addition of other features, regions, integers, steps, operations, elements, and/or components.

Terms representing relative spaces such as "lower", "upper", and the like may be used to more easily describe the relationship of one component relative to another component illustrated in the figures. Such terms refer not only to the meanings indicated in the drawings, but also to other meanings or operations of the device in use. For example, if the device in the figures is turned over, elements described as "under" other elements would then be oriented "over" the other elements. Thus, the exemplary term "lower" includes both upper and lower. The device may be rotated 90 deg. or at other angles and the terminology representing relative space is to be construed accordingly.

Although not differently defined, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The term addition defined in the commonly used dictionary is interpreted as having a meaning conforming to the contents of the related art document and the current hint, so long as no definition is made, it is not interpreted as an ideal or very formulaic meaning too much.

In view of the deficiency of the prior art, the terminal is guided to acquire user service indication information which is based on multiple transmission protocols and provides service indication for transmitting user service data by adopting different transmission protocols by acquiring session parameters required by relevant settings by the terminal. The method can solve the compatibility problem of multiple independent transmission protocols between different standard systems, has small influence on the original standard technology, is simple to realize and low in complexity, and can improve the compatibility of the communication system to different transmission protocols.

Referring to fig. 1, a schematic diagram of an implementation environment for implementing multi-protocol compatible data transmission according to an embodiment of the present invention is shown, where the system includes a transmitting end 101 and a terminal 102.

In an embodiment, the transmitting end 101 and/or the terminal 102 may be implemented in an electronic terminal, for example, a server or a server group, where the electronic terminal is, for example, a smart phone, a tablet computer, or a notebook computer, and has data processing capability and network connection capability.

In an embodiment, the transmitting end 101 and/or the terminal 102 may be implemented based on a processing device, and at a hardware level, the embedded processing device includes an embedded microprocessor 1011, such as a processor chip of a ARM, MIPS, powerPC architecture; memories such as Cache, main memory (ROM type NOR Flash, EPROM, PROM, etc., RAM type SRAM, DRAM, SDRAM, etc.), and other auxiliary memories; examples of the general-purpose device interface include an a/D (analog/digital conversion interface), a D/a (digital/analog conversion interface), an I/O interface including an RS-232 interface (serial communication interface), an Ethernet interface, a wireless Ethernet interface, a USB (universal serial bus interface), an audio interface, a VGA video output interface, an I2C (field bus), an SPI (serial peripheral interface), an IrDA (infrared interface), and an I/O interface.

The terminal 102 is guided to receive the multi-protocol compatible user service data sent by the sending end 101 through the acquired session parameters, specifically, as shown in fig. 2, an embodiment of a multi-protocol compatible guiding transmission receiving method of the terminal 102 is shown, and the method includes:

step S201: and establishing a transmission channel with at least one transmitting end.

In an embodiment, the transmission channel may be established between the transmitting end and the terminal by wireless transmission such as mobile communication network, broadcast network, wi-Fi, bluetooth, infrared, or wired transmission such as optical fiber network, xDSL, data connection line, etc. Preferably, the method can be realized by a mobile communication network function with a broadcast transmission function.

Step S202: session parameters predefined for transmitting user service indications using different transmission protocols are acquired.

In detail, the session parameters corresponding to each transport protocol at least include: a private transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification.

Specifically, each session parameter corresponds to one transmission protocol, for example, may be any one or more transmission protocols such as MMT, SMT, FLUTE and ROUTE, which are not limited in this application. The transport Protocol identifier may be an identification number (protocol_id) or an identification pattern, where the identification number is an identification number with any length and composed of one or more of any letter, number, and symbol. The identification image can be a common graphic structure or a graphic combination shape, such as a rectangle or a house graphic; and the pattern can also be a one-dimensional code or a two-dimensional code pattern.

The transmission session identifier and the transmission protocol packet identifier are identifiers of user service indication information corresponding to transmission of user service data, the transmission session identifier is an identifier of a session carrying the user service indication information for a FLUTE protocol and a ROUTE protocol, and the transmission protocol packet identifier is an identifier of a protocol data packet carrying the user service indication information for an MMT protocol and an SMT protocol.

The dedicated transport address includes: one or more of a source IP address, a destination IP address, and a port number. Generally, only the destination IP address and UDP port number are needed. For example, the SMT protocol transmits a protocol packet carrying user service indication information, where the IP address is A2 and the UDP port number is P2; and, for the same transmission protocol, the predefined IP address and UDP port number of the terminal and the sender are the same; the predefined UDP port numbers are not the same for different transport protocols. The IP address employs a multicast IP address, especially for a receive-only mode of the terminal.

It should be noted that, the session parameters are consistent with the session parameters predefined by the sender, so that the terminal obtains the required user service indication information by receiving the corresponding protocol data packet.

Optionally, the method for acquiring the session parameters predefined according to different transmission protocols includes: based on the direct acquisition path and/or the indirect acquisition path, acquiring session parameters predefined according to different transmission protocols; wherein the direct acquisition pathway comprises: the method directly obtains the session parameters from a terminal pre-stored with the session parameters, and specifically comprises the following steps: acquiring session parameters directly pre-stored in a terminal, or acquiring session parameters pre-stored in a terminal application to be provided for the terminal; the indirect acquisition pathway includes: the terminal is indirectly obtained through OMA PUSH distribution and/or an HTTP server. The indirect acquisition mode requires the terminal to perform two-way communication with other terminals so as to acquire the session parameters indirectly.

It should be noted that, for the terminals with different receiving modes, the session parameters need to be obtained according to actual situations; for example, for a receive-only mode, the terminal can only support a direct acquisition approach to acquire predefined necessary session parameters; for terminals that also have bi-directional transmission capabilities, session parameters predefined according to different transmission protocols may be acquired by either a direct acquisition approach or an indirect acquisition approach.

In one embodiment, the transmission protocol includes, but is not limited to: FLUTE, ROUTE, MMT and one or more of SMT protocols; corresponding to the FLUTE and the ROUTE protocol, judging whether the protocol data packet carries service indication information or not through comparison of a receiving value of a transmission session indication value (TSI) in the protocol data packet and a preset value of the transmission session indication TSI, wherein the preset value of the transmission session indication TSI can be preset to any specific value; corresponding to the MMT and SMT protocols, judging whether the protocol data packet carries service indication information or not by comparing a receiving value of a protocol packet identifier in the protocol data packet with a preset value, wherein the preset value of the protocol packet identifier can be preset to any specific value;

it should be noted that, for the FLUTE and the ROUTE protocol, if the received value of the transmission session instruction value TSI in the protocol data packet is different from the preset specific value, it is indicated that the transmitted protocol data packet does not carry the user service instruction information corresponding to each user service data; for the corresponding SMT protocol, if the received value of the protocol packet identification value in the protocol data packet is different from the preset specific value, it is indicated that the transmitted protocol data packet does not carry the user service indication information corresponding to the user service data.

Optionally, the transmission session identifier corresponding to the FLUTE and the ROUTE protocol includes: the preset value of the transmission session identifier TSI is 0; and/or, the transmission protocol packet identification corresponding to the MMT and SMT protocols includes: the preset value of the protocol packet identification packet_id is 0.

It should be noted that, if the setting value of the transmission session instruction value TSI in the protocol data packet is not 0 for the FLUTE and the ROUTE protocols, it is indicated that the transmitted protocol data packet does not carry the user service instruction information corresponding to the user service data; if the set value of the protocol packet identification value in the protocol data packet is not 0 for the corresponding MMT and SMT protocols, the transmitted protocol data packet is not carried with user service indication information corresponding to each user service data.

Step S203: based on the session parameters, the corresponding transmission protocol is adopted on the special transmission address to receive the protocol data packet from the transmitting end, and the user service indication information is obtained according to the transmission session identification or the transmission protocol packet identification.

Optionally, the user service indication information at least includes: service identification, transmission protocol identification and service transmission address corresponding to each user service data respectively; specifically, each piece of user service data corresponds to a transport protocol identifier, for example, any transport protocol such as MMT, SMT, FLUTE and ROUTE may be used, which is not limited in this application. The service identifier corresponding to each user service data may be an identification number (serviceID) or an identification pattern, where the identification number is an identification number with any length and composed of one or more of any letter, number and symbol. The identification image can be a common graphic structure or a graphic combination shape, such as a rectangle or a house graphic; and the pattern can also be a one-dimensional code or a two-dimensional code pattern. The service transport address includes: one or more of a source IP address, a destination IP address, and a port number. Generally, only the destination IP address and port number are needed.

Optionally, step S203 includes: finding a special transmission address corresponding to the transmission protocol in the session parameters according to the transmission protocol adopted by the user, and adopting the corresponding transmission protocol to receive a protocol data packet on the special transmission address; based on the transmission session identifier and/or the transmission protocol packet identifier corresponding to each transmission protocol in the session parameters, when the transmission session identifier and/or the transmission protocol packet identifier corresponding to the transmission protocol is found in the received protocol data packet, and the receiving value is the same as the corresponding preset value, judging that the protocol data packet carries user service indication information; and further acquiring user service indication information in the protocol data packet from the protocol data packet.

Optionally, according to the transport protocol identifier, a corresponding transport protocol is adopted on the dedicated transport address to receive a protocol data packet; if the protocol data packet is transmitted by adopting FLUTE and ROUTE, determining that the protocol data packet carries the user service indication information by receiving a Transmission Session Identification (TSI) value in a received LCT packet and comparing the received value with a preset Transmission Session Identification (TSI) value of a session for transmitting the user service indication information; wherein, the preset value of the transmission session identifier TSI is a set specific value; if the protocol data packet is transmitted by MMT or SMT, determining that the protocol data packet carries the user service indication information by receiving a receiving value of a transmission protocol packet identification packet_id in the MMTP packet or SMTP packet and comparing the receiving value with a preset value of a transmission protocol packet identification packet_id of an application layer signaling for transmitting the user service indication information; wherein, the preset value of the transport protocol packet identification packet_id is a set specific value; and acquiring user service indication information in the protocol data packet.

In an embodiment, when the transport protocol is FLUTE or ROUTE, a dedicated transport address corresponding to the FLUTE or ROUTE transport protocol is found in the session parameter according to the FLUTE or ROUTE protocol adopted by the device, and a corresponding transport protocol is adopted on the dedicated transport address to receive a protocol data packet; based on a transmission session identifier corresponding to a FLUTE or a ROUTE protocol in the session parameter, namely that a preset value of a transmission session instruction value TSI in a protocol data packet carrying user service instruction information corresponding to the FLUTE or the ROUTE is 0, when the received value of the transmission session instruction value TSI corresponding to the transmission protocol is found to be 0 in the received protocol data packet, judging that the received protocol data packet carries the user service instruction information; further, obtaining user service indication information in the protocol data packet from the protocol data packet; similarly, when the transmission protocol is MMT or SMT protocol, finding a special transmission address corresponding to the MMT or SMT transmission protocol in the session parameter according to the MMT or SMT protocol adopted by the user, and adopting the corresponding transmission protocol to receive a protocol data packet on the special transmission address; based on a transport protocol packet identifier corresponding to an SMT protocol in the session parameter, that is, a preset value of a protocol packet identifier packet_id in a transport data packet carrying user service indication information corresponding to the MMT or SMT protocol is 0, when a received value of the protocol packet identifier packet_id corresponding to the transport protocol is found to be 0 in the received protocol data packet, determining that the received protocol data packet carries the user service indication information; and further acquiring user service indication information in the protocol data packet from the protocol data packet.

Optionally, the types of the user service indication information include: a service announcement SA corresponding to the FLUTE and the ROUTE protocol and/or a service layer signaling SLS corresponding to the MMT and the SMT protocol. For example, for a FLUTE or ROUTE protocol, if the TSI value in the received LCT packet is 0, it is determined that the received LCT packet carries user service instruction information, and if the terminal is in a receive-only ROM mode, the user service instruction information is a ROM service announcement channel ROM SACH file; for MMT or SMT protocol, if the packet_id value in the received MMTP packet or SMTP packet is 0, then the received SMTP packet is judged to carry service layer signaling SLS.

Step S204: and respectively acquiring the user service data distributed by the transmitting end by adopting a corresponding transmission protocol based on the user service indication information.

Optionally, based on the user service indication information, protocol data packets corresponding to the user service data distributed by the sending end are respectively obtained and analyzed on the transmission address corresponding to the user service data.

Specifically, according to the service identifier, the transmission protocol identifier and the transmission address corresponding to each user service data in the obtained and parsed user service indication information, the terminal obtains the protocol data packet corresponding to each user service data distributed by the transmitting end on the transmission address corresponding to each user service data, and disassembles each protocol data packet to obtain each user service data.

As shown in fig. 3, there is provided a bootstrapping transmission reception apparatus implementing the multiprotocol compatible bootstrapping transmission reception method, which is applied to the terminal 102, the data reception apparatus including: a network module 301, an acquisition module 302, an instruction information receiving module 303, a user service data receiving module 304, and the like.

The network module 301 is configured to establish a transmission channel with at least one transmitting end;

the acquiring module 302 is configured to acquire session parameters predefined for transmitting user service indications using different transmission protocols; the session parameters corresponding to each transmission protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification;

the indication information receiving module 303 is connected to the obtaining module 302, and is configured to receive, on the basis of the session parameter, a protocol data packet from the transmitting end by using a corresponding transmission protocol at the dedicated transmission address, and obtain user service indication information according to a transmission session identifier or a transmission protocol packet identifier; wherein the user service indication information at least comprises: service identification, transmission protocol identification and service transmission address corresponding to each user service data respectively;

The user service data receiving module 304 is connected to the indication information receiving module 303, and is configured to obtain, based on the user service indication information, each user service data distributed by the sender and adopting a corresponding transmission protocol.

It should be noted that, it should be understood that the division of the modules in the embodiment of the system of fig. 3 is merely a division of logic functions, and may be fully or partially integrated into a physical entity or may be physically separated. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a mode that a part of modules are called by processing elements and software, and the part of modules are realized in a hardware mode;

for example, each module may be one or more integrated circuits configured to implement the above methods, e.g.: one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASIC), or one or more microprocessors (digital signal processor, abbreviated as DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, abbreviated as FPGA), or the like. For another example, when a module above is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processor that may invoke the program code. For another example, the modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

Therefore, since the implementation principle of the pilot transmission receiving device has been described in the foregoing embodiments, a detailed description is omitted here.

In an embodiment, the indication information receiving module 303 is further configured to receive a protocol data packet using a corresponding transport protocol at the dedicated transport address; if the FLUTE and the ROUTE are adopted for transmission, determining that the protocol data packet carries the user service indication information through a received value of a Transmission Session Identification (TSI) in the received LCT packet and comparing the received value with a preset value of the Transmission Session Identification (TSI); wherein, the preset value of the transmission session identifier TSI is a set specific value; if the MMT or SMT protocol transmission is adopted, the received value of the packet_id is identified by a transmission protocol packet in the received MMTP packet or SMTP packet, and the received value is compared with a preset value of the packet_id, so that the user service indication information is carried in the protocol data packet; wherein, the preset value of the transport protocol packet identification packet_id is a set specific value; and acquiring user service indication information in the protocol data packet.

As further shown in fig. 4, the present invention provides a multi-protocol compatible bootstrapping transmission method, which is applied to the transmitting end 101, and the method includes:

Step S401: and establishing a transmission channel with at least one terminal.

Alternatively, a transmission channel may be established between the transmitting end and the terminal by wireless transmission such as a mobile communication network, a broadcast network, wi-Fi, bluetooth, infrared, or by wired transmission such as a fiber optic network, xDSL, data connection, or the like. Preferably, the method can be realized by a mobile communication network function with a broadcast transmission function.

Step S402: predefined as session parameters for transmitting user service indications using different transmission protocols.

In detail, the predefined session parameters corresponding to the user service indication of each transport protocol include at least: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification;

The dedicated transport address includes: one or more of a source IP address, a destination IP address, and a port number. Generally, only the multicast IP address and UDP port number are needed. For example, the SMT protocol transmits a protocol packet carrying user service indication information, where the IP address is A2 and the UDP port number is P2; the dedicated transport address includes: IP address and/or UDP port number; and, for the same transmission protocol, the IP address and UDP port number predefined by the terminal sending end and the terminal are the same; the predefined UDP port numbers are not the same for different transport protocols. The IP address employs a multicast IP address, especially for a receive-only mode of the terminal.

It should be noted that, the session parameters are consistent with session parameters acquired by the terminal, so that the terminal can acquire the user service indication information transmitted by different transmission protocols of dishes sent by the sending end by receiving the corresponding protocol data packet.

Step S403: the user service indication information is constructed to transmit the user service data providing service indication by using different transmission protocols.

Optionally, the user service indication information at least includes: service identification, transmission protocol identification and service transmission address corresponding to each user service data respectively. Specifically, each piece of user service data corresponds to a transport protocol identifier, for example, any transport protocol such as MMT, SMT, FLUTE and ROUTE may be used, which is not limited in this application. The service identifier corresponding to each user service data may be an identification number (serviceID) or an identification pattern, where the identification number is an identification number with any length and composed of one or more of any letter, number and symbol. The identification image can be a common graphic structure or a graphic combination shape, such as a rectangle or a house graphic; and the pattern can also be a one-dimensional code or a two-dimensional code pattern. The service transport address includes: one or more of a source IP address, a destination IP address, and a port number. Generally, only the destination IP address and the port number are needed; the dedicated transport address includes: IP address and/or UDP port number; and, for the same transmission protocol, the IP address and UDP port number predefined by the terminal sending end and the terminal are the same; the predefined UDP port numbers are not the same for different transport protocols. The IP address employs a multicast IP address, especially for a receive-only terminal. Thus, the user service indication information may provide an indication for transmitting the respective user service data.

In one embodiment, each user service data corresponds to a transport protocol identifier, and each transport protocol identifier corresponds to an identification number and a transport address. For example, the user service instruction information specifies that the service identification number (SeviceID) transmitted by the FLUTE Protocol is SID1, the transport Protocol identification (protocol_id) is Porto1, and the transport address includes IP address A1, port number P1.

Step S404: and based on the session parameters, the user service indication information is encapsulated into protocol data packets, and the user service indication information is sent to the corresponding special transmission address through each transmission protocol and by adopting a predefined transmission session identifier and/or a transmission protocol packet identifier.

Optionally, based on the transmission session identifier and/or the transmission protocol packet identifier of each transmission protocol in the predefined session parameters, the transmission session identifier and/or the transmission protocol packet identifier corresponding to the adopted transmission protocol needs to be set in the session parameters in the protocol data packet carrying the user service indication information; and then, according to the special transmission addresses corresponding to the transmission protocols in the session parameters, sending user service indication information to the corresponding special transmission addresses through the transmission protocols.

In an embodiment, the transmission protocol comprises: FLUTE, ROUTE, MMT and one or more of SMT protocols; determining whether the protocol data packet carries service indication information according to whether a set value of a transmission session indication TSI in the protocol data packet is set to a preset value or not according to the FLUTE and the ROUTE protocol, wherein the preset value of the transmission session indication can be preset to any specific value; corresponding to the MMT and the SMT protocol, determining whether the protocol data packet carries service indication information according to whether a set value of a protocol packet identifier in the protocol data packet is set to a preset value, wherein the preset value of the protocol packet identifier can be preset to any specific value;

it should be noted that, for the FLUTE and ROUTE protocols, if the set value of the transmission session instruction value TSI in the protocol data packet is different from the preset specific value, it is indicated that the transmitted protocol data packet does not carry the user service instruction information corresponding to each user service data; for the MMT and SMT protocols, if the set value of the protocol packet identification value in the protocol data packet is different from the preset specific value, the transmitted protocol data packet is not carried with user service indication information corresponding to each user service data.

Optionally, the transmission session identifier corresponding to the FLUTE and the ROUTE protocol includes: the preset value of the transmission session identifier TSI is 0; and/or, the transmission protocol packet identification corresponding to the MMT and SMT protocols includes: the preset value of the protocol packet identifier is 0.

It should be noted that, if the setting value of the transmission session instruction value TSI in the protocol data packet is not 0 for the FLUTE and the ROUTE protocols, it is indicated that the transmitted protocol data packet does not carry the user service instruction information corresponding to each user service data; if the set value of the protocol packet identification value in the protocol data packet is not 0 for the corresponding MMT and SMT protocols, the transmitted protocol data packet is not carried with user service indication information corresponding to each user service data.

Optionally, the types of the user service indication information include: a service announcement SA corresponding to the FLUTE and the ROUTE protocol and/or a service layer signaling SLS corresponding to the SMT protocol. For example, for transmission using FLUTE or ROUTE protocol, the TSI value in the LCT packet carrying the SA file containing the user service indication information is 0, where if the terminal is in the receive-only ROM mode, the user service indication information is a ROM service announcement channel ROM SACH file; for MMT and SMT protocols, the packet_id value in the MMTP packet or SMTP packet carrying SLS containing user service indication information is 0.

Step S405: based on the user service indication information, distributing the user service data through the service transmission addresses corresponding to the user service data through the transmission protocols respectively so as to be acquired by the terminal.

Optionally, based on the user service indication information, each user service data is respectively encapsulated into a protocol data packet according to a corresponding transmission protocol identification protocol, and the protocol data packet is respectively sent to a service transmission address corresponding to each user service data through the transmission protocol, so that the terminal can receive and analyze each protocol data packet at the corresponding service transmission address.

As shown in fig. 5, there is provided a bootstrapping transmission transmitting apparatus implementing the multiprotocol compatible bootstrapping transmission transmitting method, which is applied to the transmitting end 101, the data transmitting apparatus including: a network module 51, a session parameter predefining module 52, a user service instruction information constructing module 53, a user service instruction information transmitting module 54, a user service data transmitting module 55, and the like.

The network module 51 establishes a transmission channel with at least one terminal;

the session parameter predefining module 52 is configured to predefine session parameters indicated for transmitting user services using different transmission protocols; wherein the predefined session parameters corresponding to the user service indication of each transport protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification;

The user service instruction information construction module 53 is configured to construct user service instruction information for providing service instruction for each user service data transmitted by using different transmission protocols;

the user service indication information sending module 54 is connected to the session parameter predefining module 52 and the user service indication information constructing module 53, and is configured to encapsulate the user service indication information into protocol data packets based on the session parameter, and send the user service indication information to the corresponding dedicated transmission address through each transmission protocol and using a predefined transmission session identifier and/or a transmission protocol packet identifier;

and the user service data sending module 55 is connected with the user service indication information sending module 54 and is used for distributing the user service data through the service transmission addresses corresponding to the user service data through the transmission protocols respectively based on the user service indication information so as to be acquired by the terminal.

It should be noted that, it should be understood that the division of the modules in the embodiment of the system of fig. 5 is merely a division of logic functions, and may be fully or partially integrated into a physical entity or may be physically separated. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a mode that a part of modules are called by processing elements and software, and the part of modules are realized in a hardware mode;

Therefore, since the implementation principle of the data transmission device has been described in the foregoing embodiments, a detailed description thereof is omitted herein.

Optionally, the user service indication information sending module 54 is configured to set, based on a transmission session identifier and/or a transmission protocol packet identifier of each transmission protocol in the predefined session parameters, a transmission session identifier and/or a transmission protocol packet identifier corresponding to the adopted transmission protocol in the session parameters in the protocol data packet carrying the user service indication information; and then, according to the special transmission addresses corresponding to the transmission protocols in the session parameters, sending user service indication information to the corresponding special transmission addresses through the transmission protocols.

For a better description of the solution of the present invention, the following specific examples are provided:

embodiment one: a multi-protocol compatible bootstrapping transmission receiving apparatus is applied to a terminal configured in a reception-only mode; the device comprises:

the network module is used for establishing a transmission channel with at least one transmitting end;

the acquisition module is used for acquiring the session parameters predefined for transmitting the user service instruction by adopting different transmission protocols from a television service configuration management object pre-stored or pre-configured with the session parameters; wherein, the liquid crystal display device comprises a liquid crystal display device,

for FLUTE or ROUTE protocol transport, the session description fragment includes at least the contents of the following session parameters:

-multicasting an IP address;

-a target UDP port number preset as a UDP port number registered at the IANA;

-a Transmission Session Identification (TSI);

-Protocol identification (protocol_id);

for MMT or SMT protocol transmissions, the session description fragment includes at least the following session parameters:

-multicasting an IP address;

-a target UDP port number preset as a UDP port number registered at the IANA;

-protocol packet identification (packet_id);

-Protocol identification (protocol_id);

wherein, the multicast IP address can be IPv4 or IPv6, and can be preset as a special address defined by a service provider; the port number is preset as a UDP port number registered in the IANA, and different protocol transmission adopts different UDP port numbers; for FLUTE or ROUTE transmission, TSI is preset to "0", and protocol_id is preset to "FLUTE/UDP" or "ROUTE/UDP"; for MMT or SMT protocols, the packet_id is preset to "0", and the protocol_ID is preset to "MMT/UDP" or "SMT/UDP".

The indication information receiving module is connected with the acquisition module and is used for receiving Protocol data packets by adopting a corresponding Protocol based on the session parameters and according to a protocol_ID, when the transmission Protocol is FLUTE or ROUTE, a special transmission address corresponding to the FLUTE or ROUTE transmission Protocol is found in the session parameters according to the FLUTE or ROUTE Protocol adopted by the user, and the corresponding transmission Protocol is adopted on the special transmission address to receive the Protocol data packets; based on a transmission session identifier corresponding to a FLUTE or a ROUTE protocol in the session parameter, that is, a preset value of a transmission session instruction TSI corresponding to the FLUTE or the ROUTE is 0, when a receiving value of a transmission session instruction TSI corresponding to the transmission protocol is found to be 0 in the received protocol data packet, judging that the received protocol data packet carries user service instruction information; further, obtaining user service indication information in the protocol data packet from the protocol data packet; similarly, when the transport protocol is an MMT or SMT protocol, based on a transport protocol packet identifier in a transport data packet corresponding to the MMT or SMT protocol and carrying user service indication information in the session parameter, that is, a preset value of a protocol packet identifier packet_id corresponding to the MMT or SMT protocol is 0, and when it is found in the protocol data packet that a received value of the protocol packet identifier packet_id corresponding to the transport protocol is 0, it is determined that the received protocol data packet carries user service indication information;

And the user service data receiving module is connected with the indication information receiving module and is used for respectively acquiring the user service data distributed by the transmitting end and adopting the corresponding transmission protocol based on the user service indication information.

In summary, the method and the device for sending and receiving the multi-protocol compatible guidance transmission according to the present invention guide the terminal to obtain the user service indication information based on the multi-transmission protocol for providing the service indication for transmitting the user service data using different transmission protocols by obtaining the session parameters necessary for the relevant settings by the terminal. The method can solve the compatibility problem of multiple independent transmission protocols between different standard systems, has small influence on the original standard technology, is simple to realize and low in complexity, and can improve the compatibility of the communication system to different transmission protocols. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A multi-protocol compatible bootstrapping transmission reception method, applied to a terminal, the method comprising:

establishing a transmission channel with at least one transmitting end;

acquiring session parameters predefined for transmitting user service indication information using different transmission protocols; the session parameters corresponding to each transmission protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification; the dedicated transport address includes: IP address and UDP port number; each transport protocol corresponds to a dedicated transport address;

based on the session parameters, receiving a protocol data packet from a transmitting end by adopting a corresponding transmission protocol on the special transmission address, and obtaining user service indication information according to a transmission session identifier or a transmission protocol packet identifier; the user service indication information at least comprises: service identification, transmission protocol identification and service transmission address corresponding to each user service data respectively;

based on the user service indication information, respectively acquiring user service data distributed by the sending end by adopting a corresponding transmission protocol;

the method for obtaining user service indication information based on the session parameters by adopting a corresponding transmission protocol to receive a protocol data packet from a transmitting end on the special transmission address and according to a transmission session identifier or a transmission protocol packet identifier comprises the following steps:

According to the transmission protocol identification, receiving a protocol data packet by adopting a corresponding transmission protocol on the special transmission address; when the transport protocol is FLUTE or ROUTE, finding a special transport address corresponding to the FLUTE or ROUTE transport protocol in the session parameters according to the FLUTE or ROUTE protocol adopted by the user, and adopting the corresponding transport protocol to receive a protocol data packet at the special transport address; when the transmission protocol is MMT or SMT protocol, finding a special transmission address corresponding to the MMT or SMT transmission protocol in the session parameters according to the MMT or SMT protocol adopted by the user, and adopting the corresponding transmission protocol to receive a protocol data packet on the special transmission address;

if the protocol data packet is transmitted by adopting FLUTE and ROUTE, determining that the protocol data packet carries the user service indication information by receiving a Transmission Session Identification (TSI) value in a received LCT packet and comparing the received value with a preset Transmission Session Identification (TSI) value of a session for transmitting the user service indication information; wherein, the preset value of the transmission session identifier TSI is a set specific value; the specific value set by the preset value of the transmission session indication TSI is 0;

If the protocol data packet is transmitted by using an MMT or SMT protocol, determining that the protocol data packet carries the user service indication information by receiving a receiving value of a transmission protocol packet identification packet_id in the received MMTP or SMTP packet and comparing the receiving value with a preset value of a transmission protocol packet identification packet_id of an application layer signaling for transmitting the user service indication information; wherein, the preset value of the transport protocol packet identification packet_id is a set specific value; the specific value set by the preset value of the transport protocol packet identification packet_id is 0;

acquiring user service indication information in the protocol data packet;

based on the user service indication information, respectively acquiring the user service data distributed by the sending end by adopting a corresponding transmission protocol includes:

and according to the service identification, the transmission protocol identification and the transmission address corresponding to the user service data in the acquired and analyzed user service indication information, acquiring the protocol data packet corresponding to the user service data distributed by the transmitting end on the transmission address corresponding to the user service data, and disassembling the protocol data packet to acquire the user service data.

2. The method for receiving a multi-protocol compatible bootstrapping transmission according to claim 1 wherein the means for obtaining session parameters predefined according to different transmission protocols comprises:

Based on the direct acquisition path and/or the indirect acquisition path, acquiring session parameters predefined according to different transmission protocols;

wherein the direct acquisition pathway comprises: directly acquiring from a terminal pre-stored with the session parameters, and/or pre-storing the session parameters in a terminal application to be provided for the terminal;

the indirect acquisition pathway includes: indirectly through OMA PUSH distribution and/or HTTP servers.

3. A multi-protocol compatible guided transmission sending method, which is applied to a sending end, the method comprising:

establishing a transmission channel with at least one terminal;

predefined as session parameters for transmitting user service indications using different transmission protocols; wherein, the predefined session parameters of the transmission user service indication information corresponding to each transmission protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification; the dedicated transport address includes: IP address and UDP port number; each transport protocol corresponds to a dedicated transport address;

user service indication information constructed to provide service indication for each user service data transmitted by adopting different transmission protocols; the user service indication information at least comprises: service identification, transmission protocol identification and service transmission address corresponding to each user service data respectively;

Based on the session parameters and according to the transmission protocol identifiers, the user service indication information is encapsulated into protocol data packets, and the user service indication information is sent to corresponding special transmission addresses through each transmission protocol and by adopting the predefined transmission session identifiers and/or the transmission protocol packet identifiers, so that the terminal can receive the protocol data packets by adopting the corresponding transmission protocols at the special transmission addresses according to the transmission protocol identifiers; if the protocol data packet is transmitted by adopting FLUTE and ROUTE, determining that the protocol data packet carries the user service indication information by receiving a Transmission Session Identification (TSI) value in a received LCT packet and comparing the received value with a preset Transmission Session Identification (TSI) value of a session for transmitting the user service indication information; wherein, the preset value of the transmission session identifier TSI is a set specific value; the specific value set by the preset value of the transmission session indication TSI is 0; if the protocol data packet is transmitted by using an MMT or SMT protocol, determining that the protocol data packet carries the user service indication information by receiving a receiving value of a transmission protocol packet identification packet_id in the received MMTP or SMTP packet and comparing the receiving value with a preset value of a transmission protocol packet identification packet_id of an application layer signaling for transmitting the user service indication information; wherein, the preset value of the transport protocol packet identification packet_id is a set specific value; the specific value set by the preset value of the transport protocol packet identification packet_id is 0; acquiring user service indication information in the protocol data packet; wherein receiving a protocol data packet at the dedicated transport address using a corresponding transport protocol according to the transport protocol identification comprises: when the transport protocol is FLUTE or ROUTE, finding a special transport address corresponding to the FLUTE or ROUTE transport protocol in the session parameters according to the FLUTE or ROUTE protocol adopted by the user, and adopting the corresponding transport protocol to receive protocol data packets at the special transport address; when the transmission protocol is MMT or SMT protocol, finding a special transmission address corresponding to the MMT or SMT transmission protocol in the session parameters according to the MMT or SMT protocol adopted by the user, and adopting the corresponding transmission protocol to receive a protocol data packet on the special transmission address;

And based on the user service indication information, distributing the user service data to the terminal through a corresponding transmission protocol.

4. The multi-protocol compatible bootstrapping transmission transmitting method according to claim 3 wherein the user service indication information includes: and the user service indication information is a ROM service announcement channel (ROM SACH) file and/or Service Layer Signaling (SLS) corresponding to the MMT and SMT protocols if the terminal is in a receiving-only mode (ROM).

5. A multi-protocol compatible bootstrapping transmission receiving apparatus, applied to a terminal, comprising:

an acquisition module for acquiring session parameters predefined for transmitting user service indication information using different transmission protocols; the session parameters corresponding to each transmission protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification; the dedicated transport address includes: IP address and UDP port number; each transport protocol corresponds to a dedicated transport address;

The indication information receiving module is connected with the acquisition module and is used for receiving the protocol data packet from the transmitting end by adopting a corresponding transmission protocol on the special transmission address according to the transmission protocol identification based on the session parameter, and acquiring user service indication information according to the transmission session identification or the transmission protocol packet identification;

the user service data receiving module is connected with the indication information receiving module and is used for respectively acquiring all user service data distributed by the transmitting end by adopting a corresponding transmission protocol based on the user service indication information;

acquiring user service indication information in the protocol data packet;

6. A multi-protocol compatible bootstrapping transmission transmitting apparatus, applied to a transmitting end, comprising:

the network module is used for establishing a transmission channel with at least one terminal;

a session parameter predefining module for predefining session parameters for transmitting user service indication information by using different transmission protocols; wherein, the predefined session parameters of the user service indication information corresponding to each transmission protocol at least comprise: a special transport address, a transport protocol identification, a transport session identification, and a transport protocol packet identification; the dedicated transport address includes: IP address and UDP port number; each transport protocol corresponds to a dedicated transport address;

the user service instruction information construction module is used for constructing user service instruction information for providing service instructions for all user service data transmitted by adopting different transmission protocols; the user service indication information at least comprises: service identification, transmission protocol identification and service transmission address corresponding to each user service data respectively;

The user service indication information sending module is connected with the session parameter predefining module and the user service indication information constructing module and is used for packaging the user service indication information into protocol data packets according to the transmission protocol identifiers based on the session parameters, sending the user service indication information to corresponding special transmission addresses through each transmission protocol by adopting the predefined transmission session identifiers and/or the transmission protocol packet identifiers respectively so that the terminal can receive the protocol data packets on the special transmission addresses by adopting the corresponding transmission protocols according to the transmission protocol identifiers; if the protocol data packet is transmitted by adopting FLUTE and ROUTE, determining that the protocol data packet carries the user service indication information by receiving a Transmission Session Identification (TSI) value in a received LCT packet and comparing the received value with a preset Transmission Session Identification (TSI) value of a session for transmitting the user service indication information; wherein, the preset value of the transmission session identifier TSI is a set specific value; the specific value set by the preset value of the transmission session indication TSI is 0; if the protocol data packet is transmitted by using an MMT or SMT protocol, determining that the protocol data packet carries the user service indication information by receiving a receiving value of a transmission protocol packet identification packet_id in the received MMTP or SMTP packet and comparing the receiving value with a preset value of a transmission protocol packet identification packet_id of an application layer signaling for transmitting the user service indication information; wherein, the preset value of the transport protocol packet identification packet_id is a set specific value; the specific value set by the preset value of the transport protocol packet identification packet_id is 0; acquiring user service indication information in the protocol data packet; wherein receiving a protocol data packet at the dedicated transport address using a corresponding transport protocol according to the transport protocol identification comprises: when the transport protocol is FLUTE or ROUTE, finding a special transport address corresponding to the FLUTE or ROUTE transport protocol in the session parameters according to the FLUTE or ROUTE protocol adopted by the user, and adopting the corresponding transport protocol to receive protocol data packets at the special transport address; when the transmission protocol is MMT or SMT protocol, finding a special transmission address corresponding to the MMT or SMT transmission protocol in the session parameters according to the MMT or SMT protocol adopted by the user, and adopting the corresponding transmission protocol to receive a protocol data packet on the special transmission address;

And the user service data distribution module is connected with the user service indication information construction module and is used for distributing the user service data to the terminal through the corresponding transmission protocol based on the user service indication information.