Terminal Access Set Selection for Cell-Free Wireless Communication
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Solution Overview
Problem
Cell-free radio access networks face challenges with high signaling overhead and high computational complexity due to multiple access points providing services simultaneously.
Innovation Solution
A wireless communication method where a terminal device determines a target access device set by receiving channels from multiple access device sets, reducing signaling overhead and computational complexity by selectively associating with a target access device set for data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all access points provide services for the terminal simultaneously, then network coverage and service reliability are improved, but signaling overhead and computational complexity increase
Solution Approach 1:
The patent segments the set of all access points into multiple access device sets, where each set is responsible for serving specific terminals. This segmentation allows the system to maintain multiple service providers (improving reliability) while reducing the computational burden on each individual set (reducing complexity). The terminal determines which access device set to associate with based on channel conditions, enabling distributed service provision without requiring all APs to simultaneously process all terminals.
2Reliability
If all access points provide services for the terminal simultaneously, then network coverage and service reliability are improved, but signaling overhead increases
Solution Approach 1:
The patent extracts the service provision function from all access points and assigns it selectively to specific access device sets. The terminal determines the target access device set based on channel information and only associates with that set, thereby extracting unnecessary signaling interactions with other access point sets. This reduces signaling overhead while maintaining service reliability through the selected target set.
3Reliability
If the terminal associates with multiple access device sets, then service reliability is improved, but device complexity and resource consumption increase
Solution Approach 1:
The patent implements a dynamic association mechanism where the terminal can flexibly switch between different access device sets based on channel conditions and service requirements. Instead of statically associating with multiple sets (which would increase energy consumption), the terminal dynamically selects the most suitable target access device set, maintaining service reliability through mobility and adaptability while optimizing energy usage.
Data Source
AI summary
A wireless communication method and a wireless communication device are provided. The method includes an operation that a terminal device receives at least one first channel transmitted by a first access device set. The first access device set includes at least one access device, the at least one first channel transmitted by the first access device set is used for determining whether the first access device set is a target access device set, and the target access device set is used for performing data communication with the terminal device.