Serving Access Node Coordination for Beam Tracking Conflicts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In high-frequency wireless communication systems, the conventional hard handover scheme is inadequate in preventing sudden service interruptions due to obstacles, and the terminal device-specific serving cluster concept is not robust enough to manage conflicts in test beam transmission directions and terminal devices to be tracked.
Innovation Solution
A method is introduced where a common communication direction is assigned to all Serving Access Nodes (SANs) within a terminal device-specific serving cluster, allowing A-SANs to determine their test beam transmission direction unambiguously and prioritize terminal devices based on deadlines for beam tracking, eliminating conflicts between test beam directions and terminal devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device-specific serving cluster concept is used for faster switching between SANs, then service continuity is improved, but conflicts arise in test beam transmission directions and terminal device tracking
Solution Approach 1:
The P-SAN acts as an intermediary that coordinates test beam transmission directions for all A-SANs. The P-SAN determines and communicates the transmission direction to each A-SAN, resolving conflicts without requiring complex peer-to-peer coordination among all SANs. This mediator approach maintains service continuity while simplifying the overall coordination mechanism.
Solution Approach 2:
The system implements feedback mechanisms where A-SANs report their test beam transmission status and terminal device tracking information to the P-SAN. The P-SAN uses this feedback to make informed decisions about direction assignment and conflict resolution, ensuring reliable service continuity through adaptive coordination.
2Ease of operation
If A-SANs autonomously determine test beam transmission directions, then operational flexibility is improved, but conflicts between test beam directions occur
Solution Approach 1:
The system dynamically adjusts the level of autonomy for A-SANs based on coordination needs. A-SANs maintain operational flexibility to determine transmission directions, but the P-SAN dynamically intervenes to resolve conflicts when they arise. This dynamic balance allows both autonomy and reliability to coexist through adaptive control.
3Adaptability or versatility
If multiple terminal devices are tracked by A-SANs, then service coverage is improved, but conflicts in terminal device tracking arise
Solution Approach 1:
The P-SAN segments the tracking responsibility for multiple terminal devices and assigns specific devices to specific A-SANs. This segmentation eliminates tracking conflicts by ensuring each A-SAN tracks only assigned devices, while the overall system maintains comprehensive service coverage through coordinated assignment.
Data Source
AI summary
A method in a Serving Access Node (SAN) for coordinating with a number of other SANs within a terminal device-specific serving cluster to which the SAN belongs. The method comprises determining an assignment of a communication direction to a timeslot. The assignment of the communication direction to the timeslot is common to all SANs in the serving cluster. The method further comprises transmitting or receiving at least one test beam in the communication direction during the timeslot. Correspondingly, a SAN is disclosed in which the method is implemented.