D2D Communication Control Node Using Callee ID Matching
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Solution Overview
Problem
Device-to-Device (D2D) communication systems face challenges in automatically establishing connections without prior knowledge of nearby devices' proximity or D2D capabilities, leading to inefficient resource utilization and increased battery consumption due to blind initiation attempts.
Innovation Solution
A method involving a control node that receives a callee ID from a device and searches for a corresponding device with a matching ID, enabling automatic D2D communication when the condition of matching IDs is met, thereby facilitating direct communication between devices without the need for explicit proximity indications or user awareness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a device attempts D2D communication without knowing the proximity or D2D capabilities of other devices, then automatic D2D connection establishment is achieved, but battery power is consumed and radio resources are wasted
Solution Approach 1:
The network performs preliminary actions by determining D2D communication conditions and allocating resources before the actual D2D communication occurs. The base station identifies suitable device pairs, checks proximity and capability conditions, and pre-allocates radio resources, so that devices only need to execute the communication when conditions are met, avoiding blind initiation attempts and reducing energy waste.
2Extent of automation
If a device attempts D2D communication without knowing the proximity or D2D capabilities of other devices, then automatic D2D connection establishment is achieved, but radio resources are wasted
Solution Approach 1:
The system implements feedback mechanisms where devices report their D2D communication capabilities and proximity information to the network. The base station uses this feedback to make informed decisions about which device pairs should establish D2D connections, ensuring that radio resources are allocated only when conditions are suitable, thereby preventing resource waste while maintaining automatic connection establishment.
3Quantity of substance
If D2D communication is established without network assistance, then resource utilization is improved, but connection reliability is reduced
Solution Approach 1:
The base station serves as an intermediary that coordinates D2D communication establishment. It receives capability and proximity information from devices, determines whether D2D communication conditions are met, allocates radio resources, and provides communication parameters. This intermediary role ensures reliable connection establishment while maintaining efficient resource utilization, as the network only facilitates D2D connections when conditions are appropriate.
4Reliability
If conventional cellular communication is used for all communications, then connection reliability is maintained, but transmission delay increases
Solution Approach 1:
The system dynamically switches between conventional cellular communication and D2D communication modes based on real-time conditions. When devices are in close proximity and D2D conditions are met, the system transitions to D2D mode for lower latency. When conditions are not met or reliability is prioritized, it uses conventional cellular communication. This dynamic adaptation allows the system to optimize both reliability and transmission delay according to current conditions.
Data Source
AI summary
The present disclosure proposes a method for device to device (D2D) communication. The method includes the step of receiving from the first device a first callee identification (ID) as the first device is handed over to the control node, searching for the second device having a second callee ID in response to receiving from the first device the first callee ID, determining that the second device has been found includes when the first callee ID is identical to the second callee ID, and arranging for the D2D communication between the first device and the second device in response to the second device is found when a first condition is fulfilled, wherein the first condition is fulfilled at least includes the second device has been found when the first callee ID is identical to the second callee ID.