Automatic retransmission processing method, sending end device and receiving end device
A processing method and automatic retransmission technology, applied in the field of communication, can solve the problems of large feedback channel pressure and large amount of retransmission feedback information.
Active Publication Date: 2018-05-29
HUAWEI TECH CO LTD
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] An embodiment of the present invention provides an automatic retransmission processing method, a sending end device, and a receiving end device to solve the problem of high feedback channel pressure caused by a large amount of retransmission feedback information in the existing automatic retransmission processing method
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0093] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0094] figure 1 It is a flowchart of an automatic retransmission processing method provided by an embodiment of the present invention. The method of this embodiment is applicable to the situation where it is necessary to retransmit received error or lost data packets when no less than two data packets are transmitted. The method in this emb...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
Provided in an embodiment of the present invention are an automatic retransmission processing method, transmitting end device and receiving end device, the automatic retransmission processing method comprising: after receiving a data packet group, sending retransmission feedback information to a transmitting end depending on whether data packets are correctly received, each data packet group comprising at least two data packets, and the retransmission feedback information comprising the number of correctly received data packets, and / or the number of mistakenly received data packets or missing data packets; receiving a retransmission data packet group transmitted by the transmitting end according to the retransmission feedback information, the retransmission data packet group comprising at least one retransmission data packet obtained based on a calculation method used by the data packet group; and restoring the data packet group according to the correctly received data packet, the retransmission data packet group and the calculation method. The embodiment of the present invention reduces the amount of information carried in feedback information, thus reducing the pressure on a feedback channel while improving retransmission efficiency.
Description
technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to an automatic retransmission processing method, a sending end device, and a receiving end device. Background technique [0002] Automatic Repeat request (ARQ for short), restores the erroneous data by requesting the sender to retransmit the erroneous data by the receiving end, and is one of the methods used in the communication field to deal with errors caused by the channel. [0003] Commonly used automatic retransmission requests include Stop And Wait (SAW for short) retransmission requests, Go Back N (GBN for short) retransmission requests and Selective Repeat (SR for short) retransmission requests . A SAW retransmission request means that the sender needs to temporarily stop after sending a certain data, waiting for the feedback from the receiver, and resend the data if it receives a Negative Acknowledgment (NACK) signal; if it receives an Acknowledgment...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L1/16
CPCH04L1/1829
Inventor 朱松李龠郭小龙鲁振伟
Owner HUAWEI TECH CO LTD