D2D Communication Scheduling Window for Resource Allocation
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Solution Overview
Problem
Existing Device to Device (D2D) communication technologies do not effectively support various communication modes like broadcast, groupcast, and unicast, leading to limited application scope and inefficiencies in resource utilization and signaling overhead.
Innovation Solution
A D2D communication method that involves determining resource locations within scheduling windows for receiving and transmitting data packets, using Hybrid Automatic Repeat Request (HARQ) and scheduled resource allocation windows, with flexible scheduling relations and data packet feedback mechanisms to optimize data transmission efficiency and reduce signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If D2D communication supports multiple communication modes (broadcast, groupcast, unicast), then the application scope of D2D communication is expanded, but the device complexity and signaling overhead increase
Solution Approach 1:
The patent applies universality by designing a unified scheduling window mechanism that can handle multiple communication modes (broadcast, groupcast, unicast) through a single framework. The scheduling window structure and resource allocation methods are made mode-agnostic, allowing the same infrastructure to serve different communication scenarios without requiring separate specialized mechanisms for each mode.
Solution Approach 2:
The patent segments the scheduling process into distinct phases and components: scheduling window configuration, resource allocation within windows, and mode-specific transmission parameters. This segmentation allows the system to maintain a unified overall structure while enabling flexible adaptation to different communication modes through configurable parameters and sub-procedures.
2Adaptability or versatility
If D2D communication supports multiple communication modes (broadcast, groupcast, unicast), then the application scope of D2D communication is expanded, but the signaling overhead increases
Solution Approach 1:
The patent merges the signaling mechanisms for different communication modes into a unified scheduling window framework. Instead of maintaining separate signaling procedures for broadcast, groupcast, and unicast, the system uses a single scheduling window structure that carries consolidated resource allocation information applicable to all modes, thereby reducing redundant signaling overhead.
Solution Approach 2:
The patent utilizes parameter changes to adapt the unified scheduling framework to different communication modes. By modifying transmission parameters, resource allocation patterns, and window configuration settings rather than creating separate signaling protocols, the system achieves mode-specific functionality while maintaining signaling efficiency.
3Productivity
If scheduling windows are configured for D2D communication, then data transmission efficiency is improved, but the terminal realization complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring scheduling windows with all necessary resource allocation information and transmission parameters before actual data transmission occurs. This advance configuration allows terminals to simply follow pre-established rules during data transmission, reducing real-time processing complexity while maintaining efficient resource utilization.
Solution Approach 2:
The patent implements periodic scheduling windows that repeat at fixed intervals with consistent structures. This periodicity allows terminals to optimize their processing by expecting data at regular intervals and using the same resource allocation patterns repeatedly, thereby reducing computational complexity through pattern recognition and reuse.
4Reliability
If HARQ scheduling window is used for retransmission, then data transmission reliability is improved, but the signaling overhead and terminal complexity increase
Solution Approach 1:
The patent nests the HARQ retransmission mechanism within the existing scheduling window framework rather than creating a separate retransmission system. The HARQ process is integrated as a nested layer within the scheduling window structure, sharing common resources and control mechanisms, which reduces overall system complexity while maintaining reliability benefits.
Data Source
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AI summary
Embodiments of the present invention disclose a Device to Device (D2D) communication method and device and a computer storage medium. The method applied to a first user equipment (UE) includes: the first UE determining a location of a resource configured in a first scheduling window for D2D communication receiving; and the first UE receiving D2D communication data packets sent by a second UE on the resource of which the location is determined.