User Apparatus D2D Communication Configuration Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
D2D communication between user apparatuses is hindered in out-of-cell coverage areas since they cannot receive configuration information from the base station, preventing them from establishing a communication route.
Innovation Solution
User apparatuses pre-store default configuration information, which includes bearer and radio resource settings, allowing them to initiate D2D communication without relying on base station signaling, by transmitting and receiving configuration indexes during discovery signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user apparatuses operate in out-of-cell coverage area, then D2D communication availability is improved, but configuration information acquisition deteriorates
Solution Approach 1:
The user apparatus stores default configuration information in advance (before entering out-of-coverage area) so that when the base station signaling becomes unavailable, the apparatus can immediately use the pre-stored configuration to establish D2D communication without interruption
Solution Approach 2:
The user apparatus creates a copy of the configuration information received from the base station and stores it locally. This copy serves as a backup that can be used when the original source (base station signaling) becomes unavailable in out-of-coverage areas
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A communication apparatus configured to perform communication by radio with another communication apparatus based on a setting by configuration information, including: a storage unit configured to hold default configuration information; a transmission unit configured to transmit default configuration information held in the storage unit to the other communication apparatus; a reception unit configured to receive default configuration information from the other communication apparatus; and a control unit configured to perform setting for performing communication by radio with the other communication apparatus by the default configuration information.