Access Point Group Coordination for Multi-Link Wireless Systems
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Solution Overview
Problem
Existing communication systems face challenges in efficiently coordinating multiple access points to optimize network performance, particularly in dense deployments where interference and latency issues are prevalent.
Innovation Solution
The proposed solution involves a control apparatus that determines whether candidate groups of access points meet requirements for coordinated communication, including multi-link operation and specific coordination schemes, by assessing backhaul link features such as availability and synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple access points are coordinated to serve a terminal device, then network throughput and communication efficiency are improved, but system complexity and coordination overhead increase
Solution Approach 1:
The patent segments the coordination process into distinct phases: candidate group formation based on channel characteristics, backhaul link feature assessment, and coordination scheme selection. This segmentation reduces the overall complexity by breaking down the complex coordination task into manageable, sequential steps that can be independently optimized and implemented.
Solution Approach 2:
The patent performs preliminary actions by pre-assessing backhaul link features (availability, latency, bandwidth) before finalizing coordination groups. Channel characteristics are measured and candidate groups are formed in advance, allowing the system to make informed coordination decisions without real-time complexity. This preliminary assessment enables faster coordination scheme selection and reduces real-time computational burden.
2Adaptability or versatility
If access points with multiple active links are included in coordination groups, then multi-link operation capability is enhanced, but backhaul link requirements and synchronization demands increase
Solution Approach 1:
The patent performs preliminary assessment of backhaul link features including availability, latency, and bandwidth before including access points with multiple active links in coordination groups. This advance evaluation ensures that only access points meeting the necessary backhaul requirements are selected, thereby maintaining reliability while enabling multi-link operation capability.
Solution Approach 2:
The patent changes the selection parameters for coordination groups by incorporating specific backhaul link feature thresholds. Access points are evaluated against multiple parameters (backhaul availability, latency bounds, bandwidth requirements) before being included in coordination groups with multi-link operation capability. This parameter-based filtering ensures reliability requirements are met while maintaining adaptability.
3Reliability
If coordination schemes are selected based on detailed backhaul link assessment, then communication reliability is improved, but processing time and computational overhead increase
Solution Approach 1:
The patent segments the scheme selection process into distinct evaluation stages: channel characteristic measurement, candidate group formation, backhaul link feature assessment, and final scheme selection. This segmentation allows the system to process information in manageable chunks rather than all at once, reducing computational overhead while maintaining comprehensive evaluation for reliability.
Solution Approach 2:
The patent performs preliminary measurements and assessments of channel characteristics and backhaul link features before final coordination scheme selection. By gathering this information in advance, the system reduces real-time processing requirements and can make reliable coordination decisions more quickly, thereby reducing the time loss associated with scheme selection.
Data Source
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AI summary
Provided is a control apparatus and a control method for a wireless communication system. The control apparatus is configured to determine for candidate group(s) of access points whether backhaul link feature(s) meet a requirement for coordinated communication with a terminal device. The requirement for coordinated communication includes a requirement for multi-link operation and/or a requirement for a coordination scheme. Based on a result of this determination, a candidate group of access points is selected as a group of APs for serving the terminal device in coordinated communication. By disclosing these techniques, the present disclosure provides for considering multi-link operation and/or coordination scheme selection in coordinated communication.