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Method, device and system for transmitting data

A technology for transmitting data and transmitting blocks, which is applied in the field of transmitting data and can solve problems such as waste of network resources

Active Publication Date: 2020-06-02
BEIJING XIAOMI MOBILE SOFTWARE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the above processing, even if only one CB in the TB has an error, the entire TB will be retransmitted, which will cause a lot of waste of network resources

Method used

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  • Method, device and system for transmitting data
  • Method, device and system for transmitting data
  • Method, device and system for transmitting data

Examples

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Embodiment Construction

[0116] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0117]An exemplary embodiment of the present disclosure provides a data transmission method, which involves a data retransmission processing mechanism. The method can be jointly implemented by the sending end and the receiving end. The system architecture can be as follows figure 1 shown. Wherein, the sending end may be any device capable of sending data in the wireless communication ...

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Abstract

The present disclosure relates to a data transmission method, device and system, and belongs to the technical field of communication. The method includes: receiving a transmission block TB sent by a sending end, wherein the TB includes a plurality of code blocks CB; determining an error CB in the TB, and determining according to a preset affiliation relationship between a CB and a code block group CBG Whether each CBG includes an error CB, wherein, in the affiliation, any CB corresponds to m CBGs, and m is a preset positive integer; for each CBG, if an error CB is included in the CBG, determine The feedback information corresponding to the CBG is a negative answer NACK, and if the CBG does not include an error CB, determine that the feedback information corresponding to the CBG is an affirmative answer ACK; and send the feedback information corresponding to each CBG to the sending end. By adopting the present disclosure, the waste of network resources can be reduced.

Description

technical field [0001] The present disclosure relates to the technical field of communication, and in particular to a method and device for transmitting data. Background technique [0002] In the wireless communication system, a data retransmission mechanism is provided to retransmit the data when the data transmission is wrong, so as to ensure that the receiving end can receive correct data. [0003] In the process of data transmission, the receiving end uses CRC (Cyclic Redundancy Check, Cyclic Redundancy Check) to detect whether the received TB (Transport Block, transmission block) has an error. If any CB (CodeBlock, code block) in the TB is wrong, the receiving end determines that the TB is wrong, and feeds back NACK (Negative Acknowledgment, negative answer) to the sending end. If all the CBs in the TB are correct, the receiving end determines that the TB is correct , Feedback ACK (Acknowledgment, affirmative answer) to the sender. After receiving NACK, the sender wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18
CPCH04L1/1607H04L1/1896H04L1/1864H04L1/1614H04L1/08H04L1/1861H04L1/1621H04L1/1812
Inventor 朱亚军周珏嘉洪伟刘春花李勇
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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