Sidelink Carrier Aggregation Parameter Optimization

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Solution Overview

Problem

Existing wireless communication systems for augmented reality (AR), virtual reality (VR), and mixed reality (MR) devices face challenges in efficiently managing sidelink connections for carrier aggregation, particularly in environments with varying sub-carrier spacing values and channel bandwidths.

Innovation Solution

The method involves a first user equipment (UE) establishing a sidelink connection with a second UE and determining to operate in a carrier aggregation mode. The UE then operates the sidelink connection according to a set of predefined parameters, including sub-carrier spacing (SCS) values, resource block sizes, maximum transmission bandwidths, and minimum guardbands, to optimize communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If carrier aggregation mode is implemented with predefined parameters for sidelink communication, then communication efficiency and reliability are improved, but device complexity and parameter management overhead increase

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidparameter management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting sub-carrier spacing values and channel bandwidth configurations based on communication conditions. The system pre-determines multiple parameter sets including SCS values (15kHz, 30kHz, 60kHz) and channel bandwidths (5MHz, 10MHz, 20MHz, 40MHz), selecting appropriate combinations to optimize sidelink carrier aggregation performance while managing complexity through standardized parameter options.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple sub-carrier spacing values and channel bandwidths are supported, then adaptability to different communication environments is improved, but system complexity increases

Engineering Contradiction:
Improveenvironmental adaptabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements universality by designing a carrier aggregation system that can operate across multiple sub-carrier spacing values (15kHz, 30kHz, 60kHz) and channel bandwidth configurations (5MHz, 10MHz, 20MHz, 40MHz) within a unified framework. This multi-functional capability allows the same sidelink interface to adapt to diverse communication environments including pedestrian and vehicular scenarios without requiring separate specialized systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system manages complexity through standardized parameter sets that can be pre-configured and selected based on communication conditions. By defining specific SCS values and channel bandwidth combinations, the patent reduces the complexity of handling multiple configurations while maintaining environmental adaptability.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If resource block sizes and guardbands are optimized according to SCS values, then communication efficiency is improved, but calculation and configuration complexity increase

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidconfiguration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-determining and storing optimal parameter combinations including resource block sizes and guardband configurations for different sub-carrier spacing values. This allows the system to quickly select pre-optimized configurations rather than calculating parameters in real-time, thereby improving communication efficiency while reducing the complexity of dynamic optimization.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250062867A1Systems and methods for sidelink carrier aggregation communication
Publication Date: 2025.02.20 META PLATFORMS TECHNOLOGIES LLC
  • US20250062867A1 patent drawing
  • US20250062867A1 patent drawing
  • US20250062867A1 patent drawing

AI summary

Systems, methods, and devices for wireless sidelink operations may include a first device including a transceiver and one or more processors configured to establish, via the transceiver, a sidelink connection with a second UE. The first UE may determine to operate in a carrier aggregation mode, for communication via the sidelink connection. The first UE may operate the sidelink connection according to a set of predefined parameters per component carrier (CC), responsive to determining to operate in the carrier aggregation mode.