Multi-Bit Sidelink Feedback Over a Single PUCCH
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Solution Overview
Problem
The existing communication systems in the Internet of Vehicles (IoV) face inefficiencies in resource utilization due to the limited capacity of Physical Uplink Control Channel (PUCCH) to carry sidelink feedback information, requiring multiple channels for multi-bit feedback, leading to resource wastage.
Innovation Solution
A method and device that configures sidelink transmission resources and PUCCH resources to enable a single PUCCH to carry multi-bit sidelink feedback information, optimizing resource utilization by allowing multiple pieces of sidelink data to be reported efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple PUCCH channels are used to carry multi-bit sidelink feedback information, then the feedback information can be transmitted completely, but the resource overhead of PUCCH increases
Solution Approach 1:
The patent combines multiple pieces of sidelink feedback information (ACK/NACK for multiple transport blocks or code block groups) into a single PUCCH channel for transmission. The terminal device multiplexes the feedback bits and sends them together in one PUCCH resource, rather than using separate PUCCH channels for each feedback bit, thereby reducing resource overhead while maintaining complete feedback information transmission.
Solution Approach 2:
The patent enables a single PUCCH channel to serve multiple functions by making it capable of carrying multi-bit sidelink feedback information. The PUCCH is designed to accommodate feedback for multiple transport blocks or code block groups simultaneously, allowing one channel to perform what previously required multiple specialized channels.
2Productivity
If a single PUCCH carries multi-bit sidelink feedback information, then the utilization rate of PUCCH resources improves, but the device complexity increases
Solution Approach 1:
The patent changes the parameter of feedback information capacity from 1-bit to multi-bit in a single PUCCH channel. By increasing the information carrying capacity parameter of the PUCCH, the system achieves higher resource utilization without requiring additional channels, though this does increase processing complexity for encoding and decoding the multi-bit feedback.
Data Source
AI summary
Provided are a communication method and device, and a storage medium. A first terminal device receives configuration information sent by a network device; the network device can configure, for the first terminal device and by means of the configuration information, a sidelink transmission resource and a transmission resource that corresponds to a PUCCH; the first terminal device may send, on the sidelink transmission resource configured by the network device, multiple pieces of sidelink data to a second terminal device, and receive, from the second terminal device, sidelink feedback information corresponding to the multiple pieces of sidelink data; the number of bits corresponding to the sidelink feedback information is greater than one; and when the first terminal device reports the sidelink feedback information to the network device by means of the transmission resource and is configured by the network device, one PUCCH can bear multi-bit sidelink feedback information.