A kind of transmission method and device based on harq

A transmission method and retransmission technology, applied in the field of HARQ-based transmission methods and devices, capable of solving problems such as inability to meet service requirements and transmission delay requirements

Active Publication Date: 2021-03-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a set of processing mechanisms is still used, such as indiscriminate multiplexing of business data at the MAC sublayer, data transmission and fast retransmission with a single HARQ configuration parameter may not meet business requirements
[0005] Therefore, for services with different transmission requirements, setting the same HARQ configuration parameters cannot meet the transmission delay requirements of different services, and a HARQ-based transmission scheme is urgently needed to meet the transmission delay requirements of different services

Method used

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  • A kind of transmission method and device based on harq
  • A kind of transmission method and device based on harq
  • A kind of transmission method and device based on harq

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Experimental program
Comparison scheme
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Embodiment 1

[0164] In this embodiment, the above-mentioned HARQ-based transmission method is described in detail for the scenario of service transmission between the base station and the terminal device through a single wireless interface technology. At this time, all services between the network device and the terminal device are transmitted on one wireless interface technology, so The transmission requirements of different services are realized by configuring different HARQ configuration parameters for bearers. The specific signaling process is as follows Image 6 Shown:

[0165] Step 601: the terminal device sends an attach request to the core network controller through the base station.

[0166] Step 602: The core network controller authorizes the attach request of the terminal device, obtains the QoS parameters of the first service corresponding to the attach request, and the core network controller triggers the establishment of an end-to-end bearer for the first service, including ...

Embodiment 2

[0184] In this embodiment, the above-mentioned HARQ-based transmission method is described in detail in the scene of service transmission between the network device and the terminal device through multiple air interfaces. At this time, different services between the network device and the terminal device can be transmitted on different wireless interface technologies. Therefore, the transmission requirements of different services can be realized by configuring different HARQ configuration parameters for services transmitted in different radio interface technologies. Since different HARQ configuration parameters correspond to different radio interface technologies, the configuration process can be directed to the radio interface technologies. The specific signaling process can be found in Figure 7 shown.

[0185] Step 701: the terminal device sends an attach request to the core network controller through the base station.

[0186] Step 702: The core network controller author...

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Abstract

The invention discloses a HARQ-based transmission method and device to meet the transmission requirements of different services. The method is as follows: the network device receives the QoS parameter of the service corresponding to the service request issued by the core network device; determines the HARQ configuration parameter corresponding to the service based on the QoS parameter of the service; and notifies the terminal of the HARQ configuration parameter equipment. In this way, when different services are transmitted between the network device and the terminal device, different HARQ configuration parameters are configured for different services, and data transmission and retransmission of services are performed based on the configured HRAQ configuration parameters, so as to meet the transmission requirements of different services.

Description

technical field [0001] The present invention relates to the field of wireless technologies, in particular to a HARQ-based transmission method and device. Background technique [0002] The hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) technology is a technology that combines forward error correction (Forward Error Correction, FEC) and automatic repeat request (Automatic Repeat Request, ARQ). FEC enables the receiving end to correct some errors by adding redundant information, thereby reducing the number of retransmissions. For errors that cannot be corrected by FEC, the receiving end will request the sending end to resend data through the ARQ mechanism. The HARQ technology implements data transmission and fast retransmission by maintaining HARQ entities at both ends of the communication, namely, the media access control (Media access control, MAC) sublayer of the terminal equipment side and the base station side respectively. [0003] figure 1 As s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L29/08
CPCH04L1/1896H04L1/22H04L1/0017H04L1/1812H04L1/203H04L5/0055
Inventor 张锦芳张伟
Owner HUAWEI TECH CO LTD
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