Grouped UE Beam Transmission Control via DRX Coordination
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Solution Overview
Problem
Existing radio access schemes inefficiently manage beam transmissions to User Equipment (UEs) by handling cell/beam mobility on a per UE basis, leading to wasteful resource use and power consumption, especially in scenarios requiring high-speed UE support and lean carrier operations.
Innovation Solution
A method and radio access node that groups UEs associated with the same beam set and assigns a coordinated Discontinuous Reception (DRX) phase to these groups, allowing synchronized transmission during the active time of the DRX phase, thereby optimizing resource usage and reducing unnecessary beam activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If beam transmissions are managed on a per UE basis, then individual UE mobility requirements are met, but resource usage efficiency deteriorates and power consumption increases
Solution Approach 1:
The patent groups multiple UEs into a common beam set and manages beam transmissions collectively rather than individually. By merging the handling of multiple UEs into a single coordinated beam management process, the system reduces redundant beam activations and signaling overhead, thereby lowering power consumption while maintaining mobility support for all grouped UEs.
Solution Approach 2:
The patent creates a universal beam set that can serve multiple UEs simultaneously with different mobility requirements. The common beam set is configured to accommodate the most demanding UE in terms of mobility, allowing all UEs in the group to benefit from the same beam management approach, thus reducing overall system complexity and energy usage.
2Adaptability or versatility
If beam transmissions are managed on a per UE basis, then individual UE requirements are satisfied, but resource usage efficiency deteriorates
Solution Approach 1:
The patent combines multiple individual beam transmissions into a single common beam set transmission. By merging resource allocation for multiple UEs into one unified resource pool, the system eliminates redundant resource usage and improves overall resource efficiency while still meeting individual UE requirements through appropriate resource allocation within the common set.
Solution Approach 2:
The patent configures the common beam set with resources that may exceed the minimum required for any single UE, ensuring that all UEs in the group can be served simultaneously without requiring additional individual resources. This excessive action approach prevents resource contention and improves efficiency by avoiding the need for multiple separate beam configurations.
3Speed
If beams remain active to support high-speed UE mobility, then mobility performance is maintained, but resource wastage increases
Solution Approach 1:
The patent implements periodic beam activation and deactivation for the common beam set based on the mobility patterns of grouped UEs. Instead of maintaining continuous beam activity, the system activates beams periodically when needed for high-speed mobility support and deactivates them during periods of lower activity, thereby reducing resource wastage while maintaining mobility performance when required.
Solution Approach 2:
The patent dynamically adjusts the activation state of the common beam set based on real-time UE mobility conditions. When high-speed mobility is detected in the grouped UEs, the beam set is activated to provide necessary support; when mobility requirements decrease, the beam set is deactivated or placed in a low-power state, optimizing resource usage according to actual needs.
Data Source
AI summary
A method and radio access node for controlling beam transmission from a radio access node. The method identifies a number of user equipment (UEs) associated with a same beam set and groups the identified UEs into one or more corresponding groups. The method assigns a same discontinuous reception (DRX) phase to the UEs in each corresponding group, and coordinates transmission from the beam set to UEs in the one or more corresponding groups based on the assigned DRX phase.