D2D Scheduling Configuration for Interference Management
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Solution Overview
Problem
Current D2D communication systems, particularly in mission-critical scenarios, face interference and collision issues when multiple devices transmit data simultaneously, leading to loss of critical information such as position reports or system check-ins, especially in scenarios without network coverage.
Innovation Solution
A method and system for D2D communication that provides a scheduling configuration allowing managed D2D groups to transmit data on reserved channels, enabling full duplex communication and authorizing specific devices to transmit on reserved channels, thereby reducing interference and enhancing user experience in mission-critical communication modes like repeater, network relay, and multi-watch functionalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple devices transmit data simultaneously in D2D communication, then communication speed and data rate are improved, but interference and collision increase leading to loss of critical information
Solution Approach 1:
The patent implements scheduling assignments that are transmitted before actual data transmission, pre-allocating time and frequency resources for each device. This preliminary scheduling action prevents simultaneous transmissions that would cause collisions, ensuring reliable delivery of critical information while maintaining efficient resource utilization for high data rates
2Ease of operation
If D2D communication operates without network coverage, then autonomy and ease of operation are improved, but interference management and resource coordination become more difficult
Solution Approach 1:
The patent enables D2D devices to autonomously perform scheduling assignments and resource allocation without network assistance. Devices self-organize by transmitting scheduling information to coordinate their transmissions, automatically managing interference through distributed scheduling decisions. This self-service mechanism maintains operational autonomy while handling the complexity of interference management through decentralized coordination
Data Source
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AI summary
A method and system for device-to-device (D2D) communication is provided. The method includes providing, from a first D2D-UE to at least one second D2D-UE, a scheduling configuration, wherein the first D2D-UE and the at least one second D2D-UE form a managed D2D group, and providing, from the first D2D-UE to the at least one second D2D-UE, data according to the scheduling configuration.