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Data transmission method of internet of vehicles, sending terminal and network side equipment

A data transmission method and network-side device technology, applied in the field of communication, can solve problems such as large feedback resource overhead

Inactive Publication Date: 2020-05-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Embodiments of the present invention provide a data transmission method for the Internet of Vehicles, a sending terminal, and a network-side device to solve the problem of large feedback resource overhead for retransmission feedback

Method used

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  • Data transmission method of internet of vehicles, sending terminal and network side equipment
  • Data transmission method of internet of vehicles, sending terminal and network side equipment
  • Data transmission method of internet of vehicles, sending terminal and network side equipment

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Embodiment Construction

[0111] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0112] see figure 1 , figure 1 is a schematic diagram of the applicable network structure of the embodiment of the present invention, such as figure 1 As shown, it includes a terminal 11 and a network side device 12, wherein the terminal 11 can be a user terminal (User Equipment, UE) or other terminal equipment, such as: a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer ), personal digital assistant (PDA for short), mobile Internet device (Mobile Internet Device, MID) or wearable device (Wearable Device) and other terminal-side devices. It should be noted that, in the embodiment of the present invention, there is no Define the specific type of terminal. The network-side device 12 refers to a base station ...

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Abstract

Provided are a data transmission method of an internet of vehicles, a sending terminal and network side equipment, the method comprising: receiving retransmission configuration sent by the network side equipment, the retransmission configuration being used for indicating pre-allocated retransmission resources; and performing hybrid automatic repeat request (HARQ) retransmission corresponding to the initial transmission on the pre-allocated retransmission resources. According to the invention, pre-allocated resources are pre-configured through the network side equipment, so that when the initial transmission fails, a retransmission resource does not need to be applied to the network side equipment, the signaling overhead can be effectively saved, and the data retransmission time delay can be effectively reduced, the problems of huge feedback resource consumption and time delay multiplication of an HARQ (Hybrid Automatic Repeat Request) mechanism adopted in a network side distributed sidelink transmission mode are solved, and the low time delay and high reliability of sidelink data transmission are effectively guaranteed.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a data transmission method of the Internet of Vehicles, a sending terminal and a network side device. Background technique [0002] As we all know, direct communication between devices is a typical communication method of the information exchange (Vehicle to X, V2X) system between the vehicle and the outside world. In the existing standard framework, the direct link between devices is defined, that is, the device-to-device (Device to Device, D2D) link is a direct link Sidelink, or PC5 link; the link between the network and the direct communication device The cellular communication link between is called a Device to Network (Device to Network, D2N) link, or a Uu link. [0003] The devices in direct communication can all be on-net, or all off-net, or some devices can be on-net and some off-net. The so-called on-net means that the equipment participating in the ...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04L1/18H04L29/08H04W4/40H04W76/14
CPCH04W4/40H04W76/14H04L5/0053H04L5/0098H04L5/0057H04L1/18H04L67/12H04L5/0091H04L5/0055H04L5/0082H04L5/0005H04L1/1893H04L1/1896H04L1/1887H04L1/1812H04W72/02H04W72/23
Inventor 谌丽冯媛赵亚利
Owner DATANG MOBILE COMM EQUIP CO LTD
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