D2D Signal Scheduling via Frequency Band Capability Assessment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, such as LTE, face challenges in efficiently managing device-to-device (D2D) communication signals, particularly in carrier aggregation environments, where determining suitable frequency bands for D2D signal transmission and reception is complex and requires improved methods for scheduling and capability assessment.
Innovation Solution
A method and apparatus for D2D signal transceiving in a wireless communication system that determines frequency band capability and schedules D2D signals based on carrier aggregation support, allowing for efficient transmission and reception by user equipment and base stations, using transceiver modules and processors to assess and manage frequency band capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If carrier aggregation is applied to multiple frequency bands for D2D communication, then communication capacity and bandwidth are improved, but device complexity and scheduling difficulty increase
Solution Approach 1:
The patent segments the frequency bands into separate component carriers (primary carrier and secondary carriers) for D2D communication. Each carrier can be independently configured and managed, allowing the system to handle multiple frequency bands by dividing them into manageable units with distinct scheduling and resource allocation procedures.
Solution Approach 2:
The patent introduces a new dimension of carrier aggregation by configuring multiple component carriers across different frequency bands for D2D communication. This multi-dimensional approach allows simultaneous transmission on multiple carriers, effectively increasing communication capacity while maintaining organized management through hierarchical carrier configuration.
2Reliability
If frequency band capability assessment is performed for D2D communication, then communication reliability is improved, but measurement and detection difficulty increase
Solution Approach 1:
The patent performs preliminary frequency band capability assessment and configuration before actual D2D communication begins. The base station evaluates which frequency bands are suitable for D2D communication and pre-configures the appropriate component carriers, thereby ensuring communication reliability while avoiding complex real-time measurements during active communication.
Solution Approach 2:
The base station acts as an intermediary that performs frequency band capability assessment on behalf of the user equipment. Instead of requiring the UE to independently measure and determine suitable frequency bands, the base station evaluates band capabilities and makes configuration decisions, simplifying the measurement process while ensuring reliable D2D communication setup.
Data Source
AI summary
The present invention provides a method for transmitting and receiving a signal for device-to-device (D2D) communication and apparatus for the same, which are used in a wireless access system supporting D2D communication. As one aspect of the present invention, a method for transmitting and receiving a D2D signal by a terminal comprises the steps of: determining whether a D2D signal can be transmitted and received in at least one frequency band; transmitting, to a base station, information on a frequency band capacity; and generating the D2D signal according to the information on a frequency band capacity.