A method, apparatus and system for processing side link resources

By processing sidelink resources according to HARQ parameters by the TX terminal, the transmission reliability problem caused by the inability of the TX terminal to send HARQ information is solved, and the correct reception of data packets and efficient utilization of resources are achieved.

CN116192343BActive Publication Date: 2025-11-14HUAWEI TECH CO LTD
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Patent Information

Application Number
CN202211247106.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-08-16
Publication Date
2025-11-14
Estimated Expiration
2039-08-16

AI Technical Summary

Technical Problem

In LTE or NR systems, when the TX terminal is unable to send HARQ information to the network device or the network device is unable to receive HARQ information, the existing technology does not describe how the TX terminal handles the subsequent HARQ process, leading to reliability issues in sidelink data transmission.

Method used

The TX terminal processes the side link resources according to the HARQ parameters, including determining whether the data packet is received correctly, using the new data to instruct the NDI and HARQ process number to process resources, avoiding unnecessary retransmissions or new transmissions, and ensuring reasonable resource utilization when the data packet is received correctly.

Benefits of technology

It improves the reliability of sidelink transmission, avoids unnecessary transmission and feedback, and ensures the correct reception of data packets and efficient utilization of resources.

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Abstract

This application provides a method, apparatus, and system for processing sidelink resources, relating to the field of communication technology. It is used to process sidelink resources allocated for retransmitting data packets when a first terminal does not send HARQ information to a network device. The first terminal determines that it has not sent confirmation information for a first sidelink Hybrid Automatic Repeat Request (HARQ) process to the network device at a first moment; the confirmation information is used to indicate whether a second terminal has correctly received the first data packet of the first sidelink HARQ process sent by the first terminal to the second terminal on the first sidelink resource; the first terminal determines a second sidelink resource; the HARQ parameters of the second sidelink resource include a New Data Indicator (NDI) and a HARQ process number; if the confirmation information indicates that the second terminal has correctly received the first data packet, the first terminal processes the second sidelink resource according to the HARQ parameters. This solution can be applied to fields such as autonomous driving, automatic driving, assisted driving, intelligent driving, connected driving, intelligent connected driving, car sharing, and artificial intelligence.
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