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Method for transmitting data, communication device and network device

A technology for communication equipment and network equipment, applied in the field of communication, can solve the problems of network equipment not knowing whether the sideline is correctly transmitted, low resource utilization, etc., and achieve the effect of reducing transmission delay and fast retransmission

Active Publication Date: 2020-07-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the scheduled transmission mode, the network device does not know whether the sidelink transmission is correct, and only releases the scheduled resources when the sidelink transmission reaches the maximum number of retransmissions, and the utilization rate of resources is low.

Method used

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  • Method for transmitting data, communication device and network device
  • Method for transmitting data, communication device and network device
  • Method for transmitting data, communication device and network device

Examples

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Embodiment Construction

[0106] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0107] The technical solutions of the embodiments of the present application can be applied to communication between communication devices in various scenarios. For example, as figure 2 Unicast and multicast transmission, machine type communication (MTC) / machine to machine (M2M) of sidelinks between vehicles and vehicles / people / infrastructure in the NR vehicle networking scenario shown Scenarios, long term evolution-vehicle (LTE-V), dedicated short range communications (dedicated short range communications, DSRC), etc.

[0108] The embodiments of the present application relate to air interface transmission between network equipment and user equipment and air interface transmission between user equipment and user equipment.

[0109] The communication equipment in the embodiments of this application may refer to user equipment, terminal equipment, a...

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PUM

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Abstract

The invention provides a data transmission method, a communication device and a network device, which can be applied to the Internet of Vehicles, such as NR V2X, LTE-V, DSRC and the like. In the technical scheme of the invention, the network device configures transmission parameters such as maximum retransmission times, retransmission time intervals and the like for sidelink communication, and schedules time-frequency resources of sidelink transmission through sidelink scheduling information. A sending side communication device feeds back ACK to the network device when sidelink transmission iscorrect, so that the network device releases the reserved retransmission time-frequency resources in time; and when the sideline transmission fails, the sending side communication device realizes rapid sideline retransmission by using the reserved retransmission time-frequency resources. Through the technical scheme, the sidelink transmission delay can be reduced, and the resource utilization rate is improved.

Description

technical field [0001] The present application relates to the field of communications, and more particularly to methods, communication devices, and network devices for transmitting data. Background technique [0002] In the 3rd generation partnership project (3GPP), the Internet of Vehicles technology based on cellular network is proposed, which interconnects cars through a vehicle to everything (V2X) communication system. Vehicle-to-vehicle (V2V), vehicle-to-person (V2P), vehicle-to-infrastructure (V2I) and vehicle-to-network (V2N) intelligent transportation services. Except for V2N vehicle and network communication using uplink and downlink, other V2V, V2I and V2P data communication all use sidelink for communication. The side link (sidelink, SL) is defined for the direct communication between the communication device and the communication device, that is, the communication device and the communication device communicate directly without forwarding by the network device. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/18H04W72/12H04W76/34
CPCH04L5/0055H04L5/0005H04W76/34H04L1/1816H04W72/20H04L1/18H04W72/12H04L5/00
Inventor 张锦芳苏宏家向铮铮
Owner HUAWEI TECH CO LTD