CN109474370B

CN109474370B - Pipeline data transmission method and equipment of digital broadcasting system

Info

Publication number: CN109474370B
Application number: CN201710801025.5A
Authority: CN
Inventors: 邢观斌; 王伟平; 陶涛; 邱翔东; 雷文; 申红兵; 李群
Original assignee: Timi Technologies Co ltd; Guoguang Integration Beijing Media Technology Development Co ltd
Current assignee: Timi Technologies Co ltd; Guoguang Integration Beijing Media Technology Development Co ltd
Priority date: 2017-09-07
Filing date: 2017-09-07
Publication date: 2021-11-02
Anticipated expiration: 2037-09-07
Also published as: CN109474370A

Abstract

The invention discloses a pipeline data transmission method and equipment of a digital broadcasting system. The method comprises the following steps: carrying a physical signaling pipeline for transmitting signaling information from the starting position of the frame header data block; carrying a physical data pipe for transmitting service data from the starting position of the frame body data block; the physical tail pipeline used for transmitting the service data is jointly carried by the symbol resources which are not occupied by the physical signaling pipeline in the frame head data block and the symbol resources which are not occupied by the physical data pipeline in the frame body data block; the signaling information transmitted in the physical signaling pipeline comprises signaling information parameters of the physical signaling pipeline, signaling information parameters of the physical data pipeline and signaling information parameters of the physical tail pipeline, and the signaling information parameters of the physical tail pipeline comprise code word initial indication information of the physical tail pipeline. The pipeline data transmission scheme of the digital broadcasting system provided by the invention reduces the waste of system resources.

Description

Pipeline data transmission method and equipment of digital broadcasting system

Technical Field

The present invention relates to the field of digital broadcasting technologies, and in particular, to a method and an apparatus for transmitting pipeline data in a digital broadcasting system.

Background

Digital broadcasting has the greatest characteristic of broadcastability except wide coverage and large program capacity, and has an important position in the construction of national information infrastructure, the realization of general services and the national information security strategy as an important component of the information communication industry.

In broadcasting systems such as radio broadcasting, terrestrial handheld broadcasting, satellite broadcasting, etc., services are divided into various types in order to provide differentiated services. All services in the system are multiplexed for transmission in the same broadcast physical signal frame, with different services providing different quality of service (QOS). Meanwhile, in order to avoid the signal receiving processing from being too complicated, the physical signal frame length is usually fixed and not variable.

The inventor of the present invention finds that on the premise that the digital broadcasting system fixes the length of the physical signal frame and each service resource in the frame is flexibly configurable, partial residual resources may appear in the physical signal frame, which causes waste of system resources.

Disclosure of Invention

An object of the present invention is to provide a pipeline data transmission scheme for a digital broadcasting system, so as to fully utilize system resources and reduce resource waste.

According to a first aspect of the present invention, there is provided a method for transmitting pipe data in a digital broadcasting system, wherein a physical signal frame of the digital broadcasting system comprises a preamble, a frame header data block, and a frame body data block;

in the frame header data block, a physical signaling pipeline for transmitting signaling information is borne from the initial position of the frame header data block;

in the frame body data block, carrying a physical data pipeline for transmitting service data from the starting position of the frame body data block;

in the frame header data block and the frame body data block, a physical tail pipe for transmitting service data is jointly loaded through a symbol resource which is not occupied by a physical signaling pipe in the frame header data block and a symbol resource which is not occupied by a physical data pipe in the frame body data block;

the signaling information transmitted in the physical signaling pipeline comprises signaling information parameters of the physical signaling pipeline, signaling information parameters of the physical data pipeline and signaling information parameters of the physical tail pipeline, and the signaling information parameters of the physical tail pipeline comprise code word start indication information of the physical tail pipeline.

Optionally, the signaling information parameter of the physical tail pipe further includes width information of the physical tail pipe.

Optionally, the signaling information parameter of the physical tail pipe further includes a coding rate and a modulation mode adopted by the physical tail pipe.

Optionally, the physical signal frame includes one physical signaling pipe and a plurality of physical data pipes.

Optionally, the signaling information transmitted in the physical signaling pipe further includes the number of frame header data blocks and the number of symbol resources of each frame header data block, as well as the number of frame body data blocks and the number of symbol resources of each frame body data block;

the signaling information parameters of the physical signaling pipeline comprise the number of code words, the length of the code words and the modulation mode of the physical signaling pipeline in the physical signal frame;

the signaling information parameters of the physical data pipes include the number of the physical data pipes in the physical signal frame, the number of code words of each physical data pipe, the length of the code words and the modulation mode.

Optionally, the receiving end calculates the number of symbol resources occupied by the physical signaling pipe according to the number of code words, the length of the code words and the modulation mode of the physical signaling pipe in the physical signal frame; calculating the number of symbol resources occupied by the physical data pipelines according to the number of the physical data pipelines in the physical signal frame, the number of code words of each physical data pipeline, the length of the code words and the modulation mode;

the receiving end calculates the total symbol resource quantity of the frame header data blocks according to the number of the frame header data blocks and the symbol resource quantity of each frame header data block; calculating the total symbol resource quantity of the frame body data blocks according to the number of the frame body data blocks and the symbol resource quantity of each frame body data block;

the receiving end determines the symbol resources occupied by the physical tail pipeline in the frame header data block according to the total symbol resource quantity of the frame header data block and the symbol resource quantity occupied by the physical signaling pipeline; determining the symbol resources occupied by the physical tail pipe in the frame body data block according to the total symbol resource quantity of the frame body data block and the symbol resource quantity occupied by the physical data pipe;

and the receiving end respectively extracts the symbol resources of the physical tail pipeline from the frame header data block and the frame body data block, and determines the starting symbol position corresponding to the physical tail pipeline code word from the symbol resources of the physical tail pipeline of the physical signal frame according to the starting indication information of the physical tail pipeline code word in the signaling information.

Optionally, in the frame header data block, a physical fast pipe for transmitting service data is carried from an end position of the physical signaling pipe;

carrying a physical tail pipe for transmitting service data by the symbol resources not occupied by the physical signaling pipe and the physical fast pipe in the frame head data block and the symbol resources not occupied by the physical data pipe in the frame body data block;

the code rate of the service data transmitted by the physical fast pipeline is lower than that of the service data transmitted by the physical data pipeline; the signaling information transmitted in the physical signaling pipe also includes signaling information parameters of the physical fast pipe.

Optionally, the physical signal frame comprises a physical fast pipe;

the signaling information transmitted in the physical signaling pipeline also comprises the number of frame header data blocks and the number of symbol resources of each frame header data block, as well as the number of frame body data blocks and the number of symbol resources of each frame body data block;

the signaling information parameters of the physical data pipes comprise the number of the physical data pipes in the physical signal frame, the number of code words of each physical data pipe, the length of the code words and the modulation mode;

the signaling information parameters of the physical fast pipeline comprise the number of code words, the length of the code words and the modulation mode of the physical fast pipeline in the physical signal frame.

Optionally, the receiving end calculates the number of symbol resources occupied by the physical signaling pipe according to the number of code words, the length of the code words and the modulation mode of the physical signaling pipe in the physical signal frame; calculating the number of symbol resources occupied by the physical fast pipeline according to the number of code words, the length of the code words and the modulation mode of the physical fast pipeline in the physical signal frame; calculating the number of symbol resources occupied by the physical data pipelines according to the number of the physical data pipelines in the physical signal frame, the number of code words of each physical data pipeline, the length of the code words and the modulation mode;

the receiving end determines the symbol resources occupied by the physical tail pipeline in the frame header data block according to the total symbol resource quantity of the frame header data block, the symbol resource quantity occupied by the physical signaling pipeline and the symbol resource quantity occupied by the physical fast pipeline; determining the symbol resources occupied by the physical tail pipe in the frame body data block according to the total symbol resource quantity of the frame body data block and the symbol resource quantity occupied by the physical data pipe;

According to a second aspect of the present invention, there is provided a data transmission device of a digital broadcasting system, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of the preceding claims when executing the program.

The pipeline data transmission scheme of the digital broadcasting system provided by the invention utilizes the residual resources of the system to bear the physical tail pipeline for transmitting the service data, thereby reducing the waste of system resources.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a block diagram showing an example of a hardware configuration of a pipe data transmission apparatus that can be used to implement an embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of a physical signal frame according to a first embodiment of the present invention.

Fig. 3 shows a schematic structural diagram of a physical signal frame according to a second embodiment of the present invention.

Fig. 4 illustrates a framing procedure of the tail pipe data by the sending end according to the embodiment of the present invention.

Fig. 5 illustrates a receiving process of receiving tail pipe data by a receiving end according to an embodiment of the present invention.

Fig. 6 is a schematic diagram illustrating a generation manner of a scrambling code sequence of a tail pipe scrambling code according to an embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The inventor of the present invention finds that on the premise that the digital broadcasting system fixes the length of the physical signal frame and each service resource in the frame is flexibly configurable, part of the remaining resources may appear in the physical signal frame. Since the traffic resources are flexibly configurable, the situation of the remaining resources is not fixed, which causes a hindrance to further utilizing the remaining resources for transmitting data.

The pipeline data transmission method and the equipment of the digital broadcasting system provided by the embodiment of the invention are suitable for a single carrier digital broadcasting system.

< hardware configuration >

The data transmission device 1000 may be an electronic device such as a computer or a server. As shown in fig. 1, the data transmission apparatus 1000 may include a processor 1010, a memory 1020, an interface device 1030, a communication device 1040, a display device 1050, an input device 1060, a speaker 1070, a microphone 1080, and the like. The processor 1010 may be a central processing unit CPU, a microprocessor MCU, or the like. The memory 1020 includes, for example, a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, and the like. The interface device 1030 includes, for example, a USB interface, a headphone interface, a bluetooth interface, and the like. The communication device 1040 can perform wired or wireless communication, for example. The display device 1050 is, for example, a liquid crystal display panel, a touch panel, or the like. The input device 1060 may include, for example, a touch screen, a keyboard, and the like. A user can output/input voice information through the speaker 1070 and the microphone 1080.

The data transmission apparatus 1000 shown in fig. 1 is illustrative only and is not intended to limit the present invention, its application or uses in any way. In an embodiment of the present invention, the memory 1020 of the data transmission device 1000 is used to store a computer program, and the processor 1010 executes the computer program to implement the pipeline data transmission method according to any one of the embodiments of the present invention.

It should be understood by those skilled in the art that although a plurality of devices are shown for the data transmission apparatus 1000 in fig. 1, the present invention may only relate to some of the devices, for example, the data transmission apparatus 1000 only relates to the processor 1010 and the storage device 1020, etc. Skilled artisans may design the program instructions based on the teachings of the present disclosure, and how the processor executes the program instructions is well known in the art and will not be described in detail herein.

Referring to fig. 2, a method for transmitting pipe data of a digital broadcasting system according to a first embodiment of the present invention is described.

The physical signal frames of the digital broadcasting system are of fixed length, each physical signal frame is composed of 1 preamble signal and N data blocks, wherein the data blocks 1 to M are frame header data blocks, and the data blocks M +1 to N are frame body data blocks. The physical signal frame comprises 1 physical signaling pipeline, 1 physical tail pipeline and K physical data pipelines. Wherein N is more than or equal to 2, M is more than or equal to 1, K is more than or equal to 1, and N, M, K is an integer.

In the frame header data block, a physical signaling pipe for transmitting signaling information is carried from the start position of the frame header data block, that is, the physical signaling pipe is carried from the position of the data block 1. In the physical signal frame, the number of symbol resources occupied by the physical signaling pipe may be calculated according to the number of FEC (Forward Error Correction ) codewords, the FEC codeword length, and the modulation mode of the physical signaling pipe in the physical signal frame. When the symbol resources of the frame header data block cannot be filled up by the physical signaling pipe, the remaining symbol resources are used for carrying the service data of the physical tail pipe. For example, the number of FEC code words of the physical signaling pipeline is P, the length of the code word is 1024 bits, and then the total number of bits of all the code words is 1024 × P, where P ≧ 1, and P is an integer; modulating the P code words into symbols, and calculating the number of symbol resources occupied by the physical signaling pipe according to the modulation method, for example, if a specific modulation method is to adjust every 2 bits into one symbol, one code word corresponds to 512 symbols, and the number of symbol resources occupied by the physical signaling pipe is 512 × P.

In the frame body data block, a physical data pipe for transmitting traffic data is carried from the start position of the frame body data block, that is, from the position of the data block M + 1. The frame body data block of the physical signal frame may carry a plurality of physical data pipes, as shown in fig. 2, in this embodiment, the number of the physical data pipes is K, and those skilled in the art may divide the width and the number of the physical data pipes by themselves as needed, which will not be described herein. In the physical signal frame, the number of symbol resources occupied by the physical data pipes may be calculated according to the number of the physical data pipes in the physical signal frame, the number of FEC codewords, the FEC codeword length, and the modulation mode of each physical data pipe. When the symbol resources in the frame body data block cannot be filled by the physical data pipe, the remaining symbol resources are used to carry the traffic data of the physical tail pipe.

And in the frame header data block and the frame body data block, jointly carrying a physical tail pipeline for transmitting service data by using the symbol resources which are not occupied by the physical signaling pipeline in the frame header data block and the symbol resources which are not occupied by the physical data pipeline in the frame body data block.

The codeword length of the physical signaling pipe, the codeword length of the physical data pipe, and the codeword length of the physical tail pipe may be the same or different.

In a specific example, the signaling information transmitted in the physical signaling pipe includes the number of frame header data blocks and the number of symbol resources of each frame header data block, and the number of frame body data blocks and the number of symbol resources of each frame body data block.

In a specific example, the signaling information transmitted in the physical signaling pipe includes a signaling information parameter of the physical signaling pipe, a signaling information parameter of the physical data pipe, and a signaling information parameter of the physical tail pipe.

In a specific example, the signaling information parameter of the physical signaling pipe includes the number of FEC codewords, the length of FEC codewords, and the modulation mode of the physical signaling pipe in the physical signal frame.

In a specific example, the signaling information parameter of the physical data pipe includes the number of physical data pipes in the physical signal frame, the number of FEC codewords per physical data pipe, the FEC codeword length, and the modulation mode.

In a specific example, the signaling information parameter of the physical tail pipe includes a start indication information of a Code word of the physical tail pipe, a width information of the physical tail pipe, and an LDPC (Low Density Parity Check Code) Code rate and a modulation mode adopted by the physical tail pipe.

Referring to fig. 4, the service data of the physical tail pipe is subjected to bit scrambling, FEC encoding, and constellation mapping, and then is subjected to system framing. The width of the physical tail pipe is the remaining symbol resources after the physical signaling pipe and all the physical data pipes in the physical signal frame are filled, and it cannot be guaranteed that the size of data transmitted by each frame of the physical tail pipe is an integer number of tail pipe FEC code words, so that the physical tail pipe code word initial indication information needs to be transmitted in the physical signaling pipe. And the physical tail pipeline code word start indication information is used for the receiving end to carry out tail pipeline FEC code word synchronization. For example, the size of data transmitted by each frame of the physical tail pipe is 1000 symbols, 1 tail pipe FEC codeword corresponds to 512 symbols, and the tail pipe codeword start indication information indicates the start position of the tail pipe FEC codeword in the physical signal frame.

Referring to fig. 5, the receiving end of the physical tail pipe data first needs to perform synchronization of the physical signal frame and channel estimation and equalization processing to analyze the signaling information transmitted in the physical signaling pipe, and then extracts the symbol resources of the physical tail pipe from the frame header data block and the frame body data block respectively according to the residual symbol resources filled in the physical signaling pipe and all the physical data pipes in the physical signaling frame calculated by the signaling information. And determining the starting symbol position corresponding to the physical tail pipeline code word from the symbol resource of the physical tail pipeline of the physical signal frame according to the physical tail pipeline code word starting indication information in the signaling information. After the initial symbol position corresponding to the physical tail pipe code word is determined, the service data of the physical tail pipe can be recovered after constellation de-mapping, FEC decoding, bit descrambling and other parameters according to the modulation mode, the coding code rate and the like of the physical tail pipe in the signaling information.

In a specific example, the receiving end calculates the number of symbol resources occupied by the physical signaling pipe according to the number of FEC codewords, the FEC codeword length, and the modulation mode of the physical signaling pipe in the physical signal frame.

In a specific example, the receiving end calculates the number of symbol resources occupied by the physical data pipes according to the number of the physical data pipes in the physical signal frame, the number of FEC codewords of each physical data pipe, the FEC codeword length, and the modulation mode.

In a specific example, the receiving end calculates the total number of symbol resources of the frame header data blocks according to the number of the frame header data blocks and the number of the symbol resources of each frame header data block.

In a specific example, the receiving end calculates the total symbol resource amount of the frame body data block according to the number of the frame body data blocks and the symbol resource amount of each frame body data block.

In a specific example, the receiving end determines the symbol resources occupied by the physical tail pipe in the frame header data block according to the total symbol resource quantity of the frame header data block and the symbol resource quantity occupied by the physical signaling pipe; and determining the symbol resources occupied by the physical tail pipe in the frame body data block according to the total symbol resource quantity of the frame body data block and the symbol resource quantity occupied by the physical data pipe. And the receiving end respectively extracts the symbol resources of the physical tail pipeline from the frame header data block and the frame body data block, and determines the starting symbol position corresponding to the physical tail pipeline code word from the symbol resources of the physical tail pipeline of the physical signal frame according to the starting indication information of the physical tail pipeline code word in the signaling information.

Referring to table (1), the digital broadcasting system provides 8 data block types, and it can be seen from table (1) that the number N of data blocks included in each physical signal frame, the total number M of frame header data blocks, and the number R of symbols included in each data block under different data block types are included.

Watch (1)

In which FH_MultThe values of the spreading factor of the frame header data block can be 1, 2, 3 and 4. N is a radical of_bwThe value of the system bandwidth expansion factor can be 1, 2, 4 and 8.

In type 1, when the system bandwidth is extended by a factor of N_bwWhen the value is 1, each data block has 512 symbols, of which 480 symbols are data symbols to be carried and the rest are pilot symbols.

Referring to fig. 6, a generation method of a scrambling sequence of tail pipe scrambling is shown, and a parameter table is generated according to the scrambling sequence provided in table (2) to generate a bit scrambling sequence.

Generating a polynomial	Register D₀To D₁₄Initial value of (2)
		g(x)＝x¹⁵+x¹⁴+1	1 0 0 1 0 1 0 1 0 0 0 0 0 0 0

Watch (2)

The relation between the LDPC coding rate and the code length adopted by the physical tail pipe is shown in the table (3):

watch (3)

The signaling information parameters corresponding to the physical tail pipe are shown in table (4), and the physical tail pipe code word start indication information is the tail pipe code word start address in table (4).

Watch (4)

Referring to fig. 3, a method for transmitting pipe data of a digital broadcasting system according to a second embodiment of the present invention is described.

The physical signal frames of the digital broadcasting system are of fixed length, each physical signal frame is composed of 1 preamble signal and N data blocks, wherein the data blocks 1 to M are frame header data blocks, and the data blocks M +1 to N are frame body data blocks. The physical signal frame comprises 1 physical signaling pipeline, 1 physical fast pipeline, 1 physical tail pipeline and K physical data pipelines. Wherein N is more than or equal to 2, M is more than or equal to 1, K is more than or equal to 1, and N, M, K is an integer.

In the frame header data block, a physical signaling pipe for transmitting signaling information is carried from the start position of the frame header data block, that is, the physical signaling pipe is carried from the position of the data block 1. In the physical signal frame, the number of symbol resources occupied by the physical signaling pipe may be calculated according to the number of FEC (Forward Error Correction ) codewords, the FEC codeword length, and the modulation mode of the physical signaling pipe in the physical signal frame.

And in the frame header data block, carrying a physical fast pipeline for transmitting service data from the end position of the physical signaling pipeline. The physical fast pipeline is used for transmitting some service data with high time requirements, emphasizing real-time fast performance, the service data transmitted by the physical fast pipeline may not need interleaving processing, and the coding rate may be lower, for example, a code rate of 1/5 may be adopted. The physical signal frame may have 1 physical fast pipe, and the number of symbol resources occupied by the physical fast pipe may be calculated according to the number of FEC codewords, the FEC codeword length, and the modulation method of the physical fast pipe in the physical signal frame. In other embodiments, one physical signal frame may have a plurality of physical fast pipes, and the number of symbol resources occupied by the physical fast pipes may be calculated according to the number of physical fast pipes in the physical signal frame, the number of FEC codewords per physical fast pipe, the FEC codeword length, and the modulation method.

When the symbol resources of the frame header data block cannot be filled up by the physical signaling pipe and the physical fast pipe, the remaining symbol resources are used for carrying the service data of the physical tail pipe.

The physical data pipe is used for transmitting traffic data which is relatively insensitive to time, and for example, a code rate of 1/2 can be adopted. And the code rate of the service data transmitted by the physical fast pipeline is lower than that of the service data transmitted by the physical data pipeline.

And in the frame header data block and the frame body data block, jointly carrying a physical tail pipeline for transmitting service data through the symbol resources which are not occupied by the physical signaling pipeline and the physical fast pipeline in the frame header data block and the symbol resources which are not occupied by the physical data pipeline in the frame body data block.

The codeword length of the physical signaling pipe, the codeword length of the physical fast pipe, the codeword length of the physical data pipe, and the codeword length of the physical tail pipe may be the same or different.

In a specific example, the signaling information transmitted in the physical signaling pipe includes a signaling information parameter of the physical signaling pipe, a signaling information parameter of the physical fast pipe, a signaling information parameter of the physical data pipe, and a signaling information parameter of the physical tail pipe.

In a specific example, the signaling information parameter of the physical fast pipe includes the number of FEC codewords, the length of FEC codewords, and the modulation scheme of the physical fast pipe in the physical signal frame.

Referring to fig. 4, the service data of the physical tail pipe is subjected to bit scrambling, FEC encoding, and constellation mapping, and then is subjected to system framing. The width of the physical tail pipe is the residual symbol resource after the physical signaling pipe, the physical fast pipe and the physical data pipe in the physical signal frame are filled, and it cannot be guaranteed that the size of data transmitted by each frame of the physical tail pipe is an integer number of tail pipe FEC code words, so that the physical tail pipe code word initial indication information needs to be transmitted in the physical signaling pipe. And the physical tail pipeline code word start indication information is used for the receiving end to carry out tail pipeline FEC code word synchronization. For example, the size of data transmitted by each frame of the physical tail pipe is 1000 symbols, 1 tail pipe FEC codeword corresponds to 512 symbols, and the tail pipe codeword start indication information indicates the start position of the tail pipe FEC codeword in the physical signal frame.

Referring to fig. 5, the receiving end receives the physical tail pipe data by first performing synchronization of the physical signal frame and channel estimation and equalization, and then extracting the symbol resources of the physical tail pipe from the frame header data block and the frame body data block according to the calculated remaining symbol resources filled in the physical signaling pipe, all physical fast pipes and all physical data pipes in the physical signal frame. And acquiring initial indication information, a modulation mode and coding rate parameter information of the code words of the physical tail pipes, and determining initial symbol positions corresponding to the code words of the physical tail pipes from symbol resources of the physical tail pipes of the physical signal frames according to the initial indication information of the code words of the physical tail pipes in the signaling information. After the initial symbol position corresponding to the physical tail pipe code word is determined, the service data of the physical tail pipe can be recovered after constellation de-mapping, FEC decoding, bit descrambling and other parameters according to the modulation mode, the coding code rate and the like of the physical tail pipe in the signaling information.

In a specific example, the physical signal frame includes 1 physical fast pipe, and the receiving end calculates the number of symbol resources occupied by the physical fast pipe according to the number of FEC codewords, the length of the FEC codewords, and the modulation method of the physical fast pipe in the physical signal frame.

In a specific example, the receiving end determines the symbol resources occupied by the physical tail pipe in the frame header data block according to the total symbol resource quantity of the frame header data block, the symbol resource quantity occupied by the physical signaling pipe, and the symbol resource quantity occupied by the physical fast pipe; and determining the symbol resources occupied by the physical tail pipe in the frame body data block according to the total symbol resource quantity of the frame body data block and the symbol resource quantity occupied by the physical data pipe. And the receiving end respectively extracts the symbol resources of the physical tail pipeline from the frame header data block and the frame body data block, and determines the starting symbol position corresponding to the physical tail pipeline code word from the symbol resources of the physical tail pipeline of the physical signal frame according to the starting indication information of the physical tail pipeline code word in the signaling information.

Other relevant contents of the second embodiment can be found in the first embodiment, and the description is not repeated here.

The method and the device for transmitting the pipeline data of the digital broadcasting system provided by the embodiment of the invention utilize the residual resources of the system to bear the physical tail pipeline for transmitting the service data, thereby reducing the waste of system resources. The method and the device for transmitting the pipeline data of the digital broadcasting system, which are provided by the embodiment of the invention, provide the tail pipeline for transmitting the service data by using the residual resources, transmit the initial indication information of the code word of the physical tail pipeline in the physical signaling pipeline and help a receiving end to receive and recover the service data of the physical tail pipeline.

It will be appreciated by those skilled in the art that the signaling data transmission device 1000 may be implemented in various ways. For example, the data transmission device 1000 may be implemented by an instruction configuration processor. For example, the data transmission apparatus 1000 may be implemented by storing instructions in ROM and reading the instructions from ROM into a programmable device when the apparatus is started. For example, the data transfer device 1000 may be consolidated into a dedicated device (e.g., an ASIC). The data transmission apparatus 1000 may be divided into units independent of each other, or may be implemented by combining them together. The data transmission device 1000 may be implemented by one of the various implementations described above, or may be implemented by a combination of two or more of the various implementations described above.

It is well known to those skilled in the art that with the development of electronic information technology such as large scale integrated circuit technology and the trend of software hardware, it has been difficult to clearly divide the software and hardware boundaries of a computer system. As any of the operations may be implemented in software or hardware. Execution of any of the instructions may be performed by hardware, as well as by software. Whether a hardware implementation or a software implementation is employed for a certain machine function depends on non-technical factors such as price, speed, reliability, storage capacity, change period, and the like. Accordingly, it will be apparent to those skilled in the art of electronic information technology that a more direct and clear description of one embodiment is provided by describing the various operations within the embodiment. Knowing the operations to be performed, the skilled person can directly design the desired product based on considerations of said non-technical factors.

The present invention may be a system, method and/or computer program product. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied therewith for causing a processor to implement various aspects of the present invention.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present invention may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing an electronic circuit, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA), with state information of computer-readable program instructions, which can execute the computer-readable program instructions.

Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the invention is defined by the appended claims.

Claims

1. A pipeline data transmission method of a digital broadcasting system is characterized in that a physical signal frame of the digital broadcasting system comprises a preamble signal, a frame header data block and a frame body data block; the physical signal frame is of a fixed length;

2. The method according to claim 1, wherein the signaling information parameters of the physical tail pipe further comprise width information of the physical tail pipe.

3. The method of claim 1, wherein the signaling information parameters of the physical tail pipe further comprise a coding rate and a modulation scheme adopted by the physical tail pipe.

4. The method of claim 1, wherein the physical signal frame comprises one physical signaling pipe and a plurality of physical data pipes.

5. The method of claim 4, wherein the signaling information transmitted in the physical signaling pipe further includes the number of frame header data blocks and the number of symbol resources per frame header data block, and the number of frame body data blocks and the number of symbol resources per frame body data block;

6. The method of claim 5, wherein the receiving end calculates the number of symbol resources occupied by the physical signaling pipe according to the number of code words, the length of code words and the modulation mode of the physical signaling pipe in the physical signal frame; calculating the number of symbol resources occupied by the physical data pipelines according to the number of the physical data pipelines in the physical signal frame, the number of code words of each physical data pipeline, the length of the code words and the modulation mode;

7. The method according to claim 4, wherein in the frame header data block, a physical fast pipe for transmitting service data is carried from an end position of the physical signaling pipe;

8. The method of claim 7, wherein the physical signal frame comprises a physical fast pipe;

9. The method of claim 8, wherein the receiving end calculates the number of symbol resources occupied by the physical signaling pipe according to the number of code words, the length of code words and the modulation mode of the physical signaling pipe in the physical signal frame; calculating the number of symbol resources occupied by the physical fast pipeline according to the number of code words, the length of the code words and the modulation mode of the physical fast pipeline in the physical signal frame; calculating the number of symbol resources occupied by the physical data pipelines according to the number of the physical data pipelines in the physical signal frame, the number of code words of each physical data pipeline, the length of the code words and the modulation mode;

10. A pipe data transmission apparatus of a digital broadcasting system, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of claims 1 to 9 when executing the program.