Method, device and system based on HARQ transmission

A retransmission and base station technology, applied in transmission systems, digital transmission systems, error prevention/detection using the return channel, etc., can solve the problems of large data volume and waste of physical resources, etc., to improve utilization, reduce waste, reduce The effect of small waste

Active Publication Date: 2017-06-27
HONOR DEVICE CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a method, device, and system based on HARQ transmission to at least solve the problem that the existing HARQ mechanism needs to fill up the curren...

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  • Method, device and system based on HARQ transmission
  • Method, device and system based on HARQ transmission
  • Method, device and system based on HARQ transmission

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Embodiment Construction

[0090] In order to make the description of the following embodiments clear and concise, a brief introduction of related technologies is first given:

[0091] First, HARQ

[0092] Due to the time-varying characteristics of the wireless channel and the impact of multipath fading on signal transmission, and some unpredictable interference will cause signal transmission failure, the HARQ mechanism is used in LTE, which is about automatic repeat request (English full name: automatic repeat -request, English abbreviation: ARQ) and forward error correction (English full name: forward error correction, English abbreviation: FEC) are used in combination. In the FEC technology, by adding certain parity bits to information bits (English: bits), the encoding rate is reduced, thereby ensuring the quality of service. In the ARQ technology, the receiving end judges the correctness of the received data packet through CRC information. If the data packet is received correctly, send an acknowl...

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Abstract

The embodiment of the invention provides a method, device and system based on HARQ transmission for at least solving the problem that the physical resource is wasted since excessive redundant information is transmitted aiming at the feature that the delay insensitive service data size is large when the existing HARQ mechanism needs to fill the current available physical resource by use of the data needing to be retransmitted in the retransmission. The method comprises the following steps: a base station performs the physical layer framing to acquire a physical layer frame, wherein the physical layer frame contains respective redundancy versions of M code words needing to be retransmitted and/or the code work of the first newly transmitted data; the code word of the first newly transmitted data is obtained by re-performing the channel encoding after performing the error estimation encoding on the first newly transmitted data by the base station; the code word of the firstly transmitted data is used for filling the residual resource except the resource occupied by respectively redundancy version of the M code words needing to be transmitted in the current available physical resource; the base station modulates the physical layer frame, and sends the modulated physical layer frame to the user equipment UE. The method, device and system are suitable for the wireless communication field.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a transmission method, device and system based on hybrid automatic repeat request (full English name: hybrid automatic repeat request, English abbreviation: HARQ). Background technique [0002] With the entry of broadband Internet value-added services into the consumer market, at the same time, the popularity of smart terminals including Pads and smart phones, the variety of types, and the continuous improvement of performance, as well as the upgrading of mobile networks, especially the long-term commercialization in 2013 Evolution (English full name: long termevolution, English abbreviation: LTE) network, with its 100Mbps downlink peak rate, can provide users with a better mobile Internet experience, resulting in more and more mobile data services. The functions and services supported by smart terminals Also more and more, interactive applications are becoming more ...

Claims

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Application Information

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IPC IPC(8): H04L1/18
CPCH04L1/1819H04L1/18
Inventor 蔺同宇梁家伟吕梦阳望育梅田春长
Owner HONOR DEVICE CO LTD
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