Carrier Aggregation Configuration for D2D Communications
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Solution Overview
Problem
The increasing number of wireless communication device users strains the limited licensed spectrum resources, necessitating more efficient use of radio network resources, particularly in device-to-device (D2D) communication technologies.
Innovation Solution
Facilitating carrier aggregation for D2D communications by establishing a configuration of component carriers that can be selectively activated and deactivated, allowing direct communication between devices without relying on cellular network components, enabling efficient use of radio resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If device-to-device communication is implemented to reduce dependency on cellular network, then end-to-end delay is reduced and communication efficiency is improved, but the strain on limited licensed spectrum resources increases
Solution Approach 1:
The patent segments the spectrum into multiple component carriers that can be independently aggregated and activated. This allows the system to divide the limited radio resources into manageable portions that can be dynamically allocated to D2D communications, reducing the overall strain on licensed spectrum while maintaining low latency performance through selective carrier activation.
Solution Approach 2:
The patent implements dynamic carrier activation and deactivation mechanisms where component carriers can be selectively turned on or off based on traffic conditions and D2D communication needs. This dynamic adjustment allows the system to optimize radio resource usage in real-time, activating only the necessary carriers for active D2D sessions and deactivating others to reduce spectrum strain.
2Productivity
If carrier aggregation configuration is established for D2D communication, then radio resource efficiency is improved, but system complexity increases
Solution Approach 1:
The patent designs a carrier aggregation framework that serves multiple functions: it enables D2D communication, manages radio resources, and provides quality of service guarantees all within a unified configuration mechanism. By making the carrier aggregation system multi-functional, the patent reduces the need for separate complex management systems and simplifies overall device operation while maintaining high radio resource efficiency.
Solution Approach 2:
The patent incorporates feedback mechanisms where communication devices report their carrier activation status and traffic conditions back to the network. This feedback loop enables automatic adjustment of carrier configurations, reducing the manual complexity of setting up carrier aggregation while optimizing radio resource allocation based on actual device needs and network conditions.
Data Source
AI summary
Methods and apparatuses are provided for facilitating use of carrier aggregation for device-to-device communications. A method may include establishing, at a first communication apparatus, a carrier aggregation configuration defining a set of one or more component carriers usable for device-to-device communication between the first communication apparatus and a second communication apparatus. The method may further include causing the first communication apparatus to engage in device-to-device communication with the second communication apparatus in accordance with the established carrier aggregation configuration. Corresponding apparatuses are also provided.