Sidelink PSSCH Repetition Across Partitioned Resource Pools

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Solution Overview

Problem

There is a need for further improvements in 5G NR technology, particularly in wireless communication systems with sidelink communication, to enhance the efficiency and reliability of sidelink control channel transmissions.

Innovation Solution

A method and apparatus are provided to transmit a repetition configuration associated with first and second physical sidelink control channel (PSSCH) transmissions, including a frequency hopping pattern, to improve the reliability and efficiency of sidelink information transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If frequency hopping pattern is implemented in PSSCH transmissions, then reliability of sidelink information transmission is improved, but device complexity increases

Engineering Contradiction:

Improvereliability of sidelink information transmissionVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The resource pool is divided into multiple sub-resource pools, each with distinct frequency ranges. The frequency hopping pattern distributes PSSCH transmissions across these segmented sub-resource pools, enhancing reliability through frequency diversity while maintaining manageable device complexity through structured segmentation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system implements dynamic frequency hopping where the frequency location of PSSCH transmissions changes according to a predefined pattern across different time instances. This dynamic allocation allows the system to adapt to varying channel conditions, improving transmission reliability without requiring complex real-time decision-making at the device level.

Inventive Principle:

Principle #15Dynamics

2Productivity

If repetition configuration is transmitted for first and second PSSCH transmissions, then efficiency of sidelink communication is improved, but loss of time increases

Engineering Contradiction:

Improveefficiency of sidelink communicationVSAvoidtime for transmitting repetition configuration

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The repetition configuration, including the frequency hopping pattern, is determined and prepared in advance before the actual PSSCH transmissions occur. This preliminary configuration allows the transmitting device to efficiently schedule multiple transmissions without real-time decision delays, improving overall communication efficiency while minimizing the time overhead associated with configuration signaling.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12426066B2Transmission across partitioned resource pools

Publication Date: 2025.09.23 QUALCOMM INC

AI summary

Apparatus, methods, and computer program products for wireless communication are provided. An example method may include transmitting, to a second network entity, a repetition configuration associated with a first PSSCH transmission and a second PSSCH transmission, where the repetition configuration includes information indicative of a frequency hopping pattern associated with the first PSSCH transmission and the second PSSCH transmission. The example method may further include transmitting, to the second network entity, the first PSSCH transmission including a first instance of sidelink information based on the frequency hopping pattern. The example method may further include transmitting, to the second network entity, the second PSSCH transmission including a second instance of the sidelink information based on the frequency hopping pattern.