Base Station D2D Resource Allocation via Data Notification
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Solution Overview
Problem
Current mobile communication systems lack a designed specification for effectively controlling Device to Device (D2D) communication, leading to inefficiencies in resource allocation and data transmission.
Innovation Solution
A base station equipped with a processor and memory that receives notifications and measurement reports from user terminals to determine and allocate radio resources for D2D communication, optimizing data transmission based on the amount of data to be transmitted and considering factors like transmission power and service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If D2D communication is implemented without a designed control specification, then direct device-to-device communication can be established, but resource allocation becomes inefficient and signaling overhead increases
Solution Approach 1:
The base station serves as an intermediary that receives data amount notifications from user terminals and allocates radio resources accordingly. This mediator role enables efficient resource management for D2D communication without requiring complex terminal-side resource allocation algorithms, thus improving resource allocation efficiency while maintaining D2D communication capability
Solution Approach 2:
The system implements a feedback mechanism where user terminals notify the base station of the data amount to be transmitted in D2D communication, and the base station responds with appropriate radio resource allocation. This feedback loop enables adaptive resource allocation that matches actual transmission needs, improving overall system productivity
2Measurement precision
If the base station allocates radio resources based on data amount notification, then resource allocation accuracy improves, but signaling overhead increases due to additional notifications
Solution Approach 1:
The base station requests data amount notification only when needed for D2D communication resource allocation, rather than continuously monitoring all terminal activities. This partial action approach achieves sufficient resource allocation accuracy without generating excessive signaling overhead from constant status reporting
3Reliability
If the base station controls D2D communication startup based on measurement reports, then service quality management improves, but system complexity increases
Solution Approach 1:
The base station receives measurement reports from user terminals before D2D communication startup and uses this advance information to determine whether to permit D2D communication. This preliminary action enables service quality assessment before resource commitment, improving reliability without requiring complex real-time control mechanisms during active D2D transmission
Data Source
AI summary
A base station, a processor thereof, and a communication control method thereof receive a notification from a first user terminal before starting direct device to device (D2D) communication, the notification indicating a desire for performing D2D communication, receive a measurement report including results of measurement of a cell reference signal from the first user terminal, and based on the measurement report, determine to cause the first user terminal to perform D2D communication, perform a process for starting the D2D communication between the first and second user terminals, receive a first data amount notification indicating an amount of first data to be transmitted from the first user terminal to the second user terminal, and based on the first data amount notification, allocate first radio resources to the first user terminal, where the allocated first radio resources are used by the first user terminal to transmit the first data.