D2D Communication Configuration via Location and Signal Feedback
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Solution Overview
Problem
There is a need for improved device-to-device (D2D) data transmission/reception methods and apparatuses that ensure the safety of wireless terminals, particularly in 5G communication systems, where existing technologies face challenges in maintaining reliable communication and security, especially in scenarios like pedestrian-to-vehicle and vehicle-to-pedestrian communications.
Innovation Solution
The proposed solution involves a method and apparatus for D2D communication that includes receiving information about signal reception rates and location data from user equipment (UEs), determining a data transmission/reception configuration based on this information, and adjusting the configuration to optimize communication, such as by increasing transmit power or switching to a sensing-based resource selection scheme, to ensure stable data transmission and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If D2D communication is performed without centralized configuration management, then communication autonomy and response speed are improved, but communication reliability and safety are deteriorated
Solution Approach 1:
The base station performs preliminary actions by determining D2D data transmission/reception configurations in advance based on location information and reception rate information, then provides these configurations to UEs before actual communication occurs. This allows UEs to quickly switch to pre-configured parameters when communication conditions change, achieving both fast response and reliable communication.
Solution Approach 2:
The system implements feedback mechanisms where UEs report reception rate information and location information to the base station. The base station uses this feedback to dynamically adjust and reconfigure D2D communication parameters, ensuring communication reliability while maintaining responsive adaptation to changing conditions.
2Reliability
If transmit power is increased to improve signal reception in challenging environments, then communication reliability is improved, but power consumption is worsened
Solution Approach 1:
The system dynamically adjusts transmit power and other communication parameters based on real-time reception rate information and location information. Instead of using fixed high power settings, the base station configures appropriate power levels according to actual communication conditions, achieving reliable communication while minimizing unnecessary power consumption.
Solution Approach 2:
The invention changes communication parameters (transmit power, resource allocation, modulation schemes) based on reception rate information and location information. By adapting parameters to actual conditions rather than using fixed settings, the system achieves reliable communication at optimal power levels.
3Device complexity
If D2D communication configuration is determined autonomously by UEs, then device complexity is reduced, but communication safety and reliability are worsened
Solution Approach 1:
The base station acts as an intermediary that determines D2D communication configurations based on location information and reception rate information. This centralizes the complex decision-making process in the base station while keeping UE operations relatively simple, ensuring both communication safety and reduced device complexity.
Solution Approach 2:
The base station performs multiple functions including determining D2D configurations, managing resource allocation, and monitoring communication quality. By consolidating these functions in the base station, the system achieves reliable and safe communication without requiring complex autonomous capabilities in each UE.
Data Source
AI summary
Disclosed is a fifth generation (5G) or pre-5G communication system for supporting higher data transmission rates beyond fourth generation (4G) communication systems such as LTE systems. A data communication method includes receiving information about a reception rate of a signal from a second user equipment (UE) performing device-to-device (D2D) communication with a first UE, receiving location information about at least one of the first UE and the second UE, determining a data communication configuration for the D2D communication based on the reception rate information and the location information, and transmitting the determined data communication configuration to at least one of the first UE and the second UE.