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Data message retransmission control method and device, equipment and storage medium

A technology of data packets and control methods, applied in the field of communication, can solve problems such as large traffic, occupying air interface resources, and low transmission efficiency, and achieve the effects of improving transmission efficiency, saving air interface resources, and improving the utilization rate of air interface resources

Active Publication Date: 2022-03-11
深圳市领创星通科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the maximum number of retransmissions of downlink HARQ is determined by gNodeB, and different manufacturers may have different implementations. The user terminal can know the maximum number of retransmissions of uplink transmission through maxHARQ-Msg3Tx and max HARQ-Tx, but The user terminal does not know the maximum number of downlink retransmissions. The user terminal only determines whether to perform soft combining, that is, retransmission, or to clear the HARQ buffer, that is, new transmission according to the new data indicators in the received HARQ.
When the channel conditions are poor, the receiving end obtains very little effective information. At this time, if the third or fourth retransmission is performed, the amount of retransmitted data is actually relatively limited, but it occupies wireless transmission resources.
For real-time services, such as live video, the required traffic is relatively large, and the transport block size (Transport Block Size, TBS) of the transmission will also be large, but due to the poor channel quality, retransmission is not too much However, it takes up a lot of air interface resources, making the transmission efficiency low.

Method used

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  • Data message retransmission control method and device, equipment and storage medium
  • Data message retransmission control method and device, equipment and storage medium
  • Data message retransmission control method and device, equipment and storage medium

Examples

Experimental program
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Embodiment 1

[0029] figure 1 It is a flow chart of a method for controlling retransmission of data packets provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation when retransmission control is performed on data packets, and the method may be performed by a device for retransmission control of data packets, which may be implemented in hardware and / or software, usually Can be configured in computer equipment. Specifically include the following steps:

[0030] S110. When it is detected that the current retransmission control condition is satisfied, determine the current information value transmitted by the transmission channel.

[0031] Wherein, the retransmission control condition may be understood as a condition for retransmission control of the data packet. The transport channel may be understood as a channel for communication transmission. Exemplarily, the transport channel may be a physical downlink shared channel (Physical Downlink Shared Ch...

Embodiment 2

[0044] figure 2 It is a flow chart of a method for controlling retransmission of data packets provided by Embodiment 2 of the present invention. In this embodiment, on the basis of the above-mentioned embodiments, when it is detected that the current retransmission control conditions are satisfied, the current information value transmitted by the transmission channel is determined, and the amount of data that can be accommodated by the transmission channel under the current channel quality is determined according to the current information value And according to the amount of data that can be accommodated and the actual amount of data currently delivered, the retransmission control of the data message of the user service is further refined. Specifically, the following steps may be included:

[0045] S210. If the current user service belongs to the retransmission control category, and the modulation order of the transmission channel is lower than the lower limit threshold of ...

Embodiment 3

[0116] image 3 It is a schematic structural diagram of an apparatus for controlling retransmission of data packets provided by Embodiment 3 of the present invention. The apparatus for controlling retransmission of data packets provided in this embodiment may be realized by software and / or hardware, and may be configured in a server to implement a method for controlling retransmission of data packets in the embodiments of the present invention. like image 3 As shown, the device may specifically include: an information value determination module 310 , a data volume determination module 320 and a retransmission control module 330 .

[0117] Among them, the information value determination module 310 is used to determine the current information value transmitted by the transmission channel when the current retransmission control condition is met;

[0118] A data amount determination module 320, configured to determine the accommodating data amount of the transmission channel un...

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Abstract

The invention discloses a data message retransmission control method and device, equipment and a storage medium. The method comprises the steps of determining a current information value transmitted by a transmission channel when it is monitored that a retransmission control condition is met currently; determining an acceptable data volume of the transmission channel under the current channel quality according to the current information value; and performing retransmission control on the data message of the user service according to the receivable data volume and the acquired current actual issuing data volume. According to the embodiment of the invention, retransmission control is carried out on the data message of the user service according to the receivable data volume and the acquired current actual issuing data volume, so that air interface resources are saved to a certain extent, and the transmission efficiency is improved.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular, to a method, device, device, and storage medium for retransmission control of data messages. Background technique [0002] In the wireless communication system, there are mainly two retransmission mechanisms in the 5G New Interface (New Radio, NR): the Hybrid Automatic RepeatreQuest (HARQ) mechanism of the Media Access Layer (Media Access Control, MAC) layer and the Radio Link Control (RLC) layer Automatic Repeat-reQuest (ARQ) mechanism, lost and erroneous data is mainly processed by the HARQ mechanism of the MAC layer, and the RLC layer performs ARQ supplementation. Some data packets cannot be successfully decoded, but they also contain useful information. If they are discarded, these useful information will be lost. Through HARQ with soft combining, the received error data will be stored in a HARQ buffer and shared with the subsequent The retransmitted dat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/00
CPCH04L1/1806H04L1/0015
Inventor 孙腾杰黄中明简春兵余昕
Owner 深圳市领创星通科技有限公司