D2D Coordinator for Direct Device Communication
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in maximizing bandwidth and reducing traffic load, particularly in proximity-based applications where devices need to communicate directly without overloading base stations, which affects battery life and network interference.
Innovation Solution
Implementing device-to-device (D2D) communication technology that enables user equipment (UEs) to communicate directly with each other, reducing the need for network infrastructure and allowing for lower-power modes, while using a D2D coordinator to manage resource allocation and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If devices communicate through base stations in traditional wireless networks, then network coverage and connectivity are ensured, but network traffic load increases and battery life decreases
Solution Approach 1:
The patent extracts the communication function from the base station infrastructure and enables direct device-to-device communication. User equipment can directly exchange data without routing through base stations, thereby reducing network traffic load and energy consumption while maintaining connectivity in coverage areas.
Solution Approach 2:
The patent introduces a D2D coordinator as an intermediary entity that manages resource allocation and coordination for direct device communications. This mediator enables efficient local communication while offloading traffic from base stations, improving network efficiency and reducing energy consumption.
2Use of energy by moving object
If devices communicate directly in D2D mode, then battery life is extended and network traffic is reduced, but network interference increases and connectivity is lost in areas without base station coverage
Solution Approach 1:
The D2D coordinator acts as a mediator that manages spectrum resources and coordinates transmissions between devices. By centralizing resource allocation, the system can manage interference effectively while enabling direct communications that conserve battery life.
Solution Approach 2:
The patent dynamically adjusts transmission parameters such as power levels, frequency selection, and resource allocation based on channel conditions and interference levels. This allows the system to optimize direct communications while minimizing harmful interference to other users.
3Speed
If D2D communication is implemented without network coordination, then device autonomy and speed are improved, but resource allocation efficiency decreases and interference management becomes difficult
Solution Approach 1:
The D2D coordinator serves as an intermediary that handles complex resource allocation and interference management tasks. This allows devices to communicate directly with high speed while the coordinator manages the complexity of resource distribution and coordination.
Solution Approach 2:
The patent segments the communication system into two functional parts: direct device-to-device data transmission for high speed communication, and coordinator-based resource management for efficient allocation. This segmentation allows both fast communication and efficient resource management to coexist.
Data Source
AI summary
An apparatus is provided for a device-to-device, D2D, communication enabled user equipment, UE, comprising a processing section to determine, based on a signal received from another UE, a channel condition between the UE and the another UE; the UE to report the determined channel condition to an evolved Node B, eNB. The processing section is to initiate D2D communication based on a communication from the eNB, received in response to the report. Also, an apparatus is provided for a network element, comprising An input to receive a describing a channel condition between a first UE and a second UE; a processor to determine, based on the channel condition, whether or not D2D communication between the first UE and the second UE is to be enabled; and an output to output a result of the determination when the processor determines D2D communication is to be enabled. Related methods are also provided.