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Data sending method and device and information source

A data sending method and technology to be sent, applied in the field of communication, can solve the problem that the coding method cannot meet the requirements of future communication systems and the like

Inactive Publication Date: 2018-04-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The embodiment of the present invention provides a data transmission method, device and information source to at least solve the problem that existing coding methods in related technologies cannot meet the needs of future communication systems

Method used

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  • Data sending method and device and information source
  • Data sending method and device and information source
  • Data sending method and device and information source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] The method embodiment provided in Embodiment 2 of the present application may be executed in a signal source, a computer terminal, or a similar signal sending device. Taking running on the source as an example, figure 2 It is a block diagram of the hardware structure of the information source of a data sending method in the embodiment of the present invention. Such as figure 2 As shown, the signal source 20 may include one or more (only one is shown in the figure) processing means 22 (the processor 22 may include but not limited to processing means such as a microprocessor MCU or a programmable logic device FPGA, etc.), for A memory 24 for storing data, and a transmission device 26 for communication functions. Those of ordinary skill in the art can understand that, figure 2 The shown structure is only for illustration, and it does not limit the structure of the above-mentioned electronic device. For example, information source 20 may also include figure 2 more ...

example 1

[0112] The sender has a transport block to be transmitted, and it needs to be encoded before sending. The encoding process includes: according to the length T bits of the transport block and the preset threshold E 1 bits (where T and E 1 are all positive integers, E 1 The effect is similar to that of the aforementioned first preset threshold), to determine the encoding mode of the transport block. Among them, the threshold E 1 is a function of the maximum coded block length of the Turbo code.

[0113] In this example set E 1 Not greater than the maximum code block length K of the Turbo code encoder max 10 times of , in the example, assume the maximum code block length K of the Turbo code max = 6144 bits, threshold E 1 is K max 5 times that of E 1 =6144*5=30720 bits.

[0114] When T≤E 1 When , the transmission block is coded with Tubo code, when T>E 1 , the transport block is encoded using LDPC. In this example, assuming that the length of the transport block is T=3...

example 2

[0117] The sender has a transmission block to be transmitted, which needs to be encoded before sending, and the encoding process includes:

[0118] According to the length T bits of the transport block and the preset threshold E 1 bits (where T and E 1 are all positive integers), determine the encoding method of the transport block. Among them, the threshold E 1 is a function of the LDPC code length.

[0119] In this example, set E 1 Not greater than the maximum code block length K of the LDPC code encoder max 10 times of , assuming the maximum code block length K of the LDPC code max = 8096 bits, threshold E 1 is K max 5 times that of E 1 =8096*5=40480 bits.

[0120] When T≤E 1 When , the transmission block is coded with a polar code, when T>E 1 , the transport block is encoded using LDPC. In this example, assuming that the length of the transport block is T=60000 bits, the transport block is coded by LDPC.

[0121] When the length T of the transmission block is ...

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Abstract

The invention provides a data sending method and device and an information source. The method comprises the steps of determining a coding mode for coding transmission blocks according to data featuresfor representing to-be-sent transmission blocks and preset parameters corresponding to the data features; coding the transmission blocks according to the determined coding mode; and sending the codedtransmission blocks to a receiving end. Through application of the method, the device and the information source, the problem that an existing coding mode in related technologies cannot satisfy demands of a future communication system is solved, and the effect of improving the coding mode selection flexibility is achieved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data sending method, device and information source. Background technique [0002] The transmitting end of a digital communication system usually includes a source, a source encoder, a channel encoder, and a modulator, and the receiving end usually includes a demodulator, a channel decoder, a source decoder, and a sink, such as figure 1 shown. The channel encoder is used to introduce redundant information to the information bits according to certain rules, so that the channel decoder at the receiving end can correct the bit errors that occur when the information is transmitted on the channel to a certain extent. [0003] Generally speaking, forward error correction (Forward Error Correction, referred to as FEC) coding is the process of generating a check bit sequence from an information bit sequence. The information bit sequence and the check bit sequence together form what w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/00H04L1/0006H04L1/0009H04L1/0014H04L1/0061
Inventor 许进徐俊李立广
Owner ZTE CORP
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