Beam Selection for Semi-Persistent Wireless Scheduling
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Solution Overview
Problem
Wireless communication devices face challenges in determining the optimal beam parameters for effective communication due to environmental changes, interference, and structural obstructions, particularly in semi-persistent scheduling scenarios where traditional methods may not provide real-time adaptation.
Innovation Solution
The proposed solution involves a processing circuit and receiver configuration that determines a transmission configuration based on a resource set associated with the time of transmission, using quasi co-location information from the Control Resource Set (CORESET) to dynamically select the appropriate beam for wireless communication, especially in semi-persistent scheduling scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional beam selection methods are used for semi-persistent scheduling, then device complexity is reduced, but adaptability to environmental changes deteriorates
Solution Approach 1:
The system pre-configures multiple transmission configuration indication (TCI) states in advance, each associated with different beam parameters. During semi-persistent scheduling, the receiver can select from these pre-configured states based on current channel conditions, avoiding the need for complex real-time beam calculations while maintaining adaptability.
Solution Approach 2:
The patent implements dynamic beam selection by allowing the receiver to switch between different TCI states based on persistent channel quality indicators. The system dynamically adjusts the transmission configuration by selecting appropriate beam parameters from the pre-configured set, enabling adaptation to environmental changes without increasing device complexity.
2Reliability
If real-time beam parameter adjustment is implemented, then communication reliability is improved, but processing overhead increases
Solution Approach 1:
Multiple TCI states with different beam parameters are configured in advance before communication begins. When semi-persistent scheduling is activated, the receiver can immediately select from these pre-prepared configurations based on current channel conditions, eliminating the need for time-consuming real-time beam calculations while ensuring communication reliability.
Solution Approach 2:
The system changes beam parameters by selecting from a discrete set of pre-configured TCI states rather than continuously optimizing beam parameters in real-time. This approach maintains communication reliability by adapting to channel changes while reducing processing time through discrete state selection instead of continuous optimization.
3Adaptability or versatility
If multiple transmission configuration indications are supported, then adaptability to different channel conditions is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal TCI state framework where a single configuration structure can represent multiple beam parameters. The receiver uses a unified selection mechanism that works across different channel conditions and scheduling scenarios, allowing multiple transmission configurations to be managed through a single versatile interface rather than separate management procedures for each configuration type.
Data Source
AI summary
The disclosure relates in some aspects to determining which beam parameters to use for wireless communication. For example, a wireless communication device may use one beam selection procedure for a non-persistent communication and another beam selection procedure for a semi-persistent communication. For the non-persistent communication, a transmission configuration signaled with control scheduling or a default transmission configuration may specify the beam configuration for the communication. For the semi-persistent communication, a recently used transmission configuration may specify the beam configuration for the communication. An apparatus may determine that a channel is persistently scheduled, determine a transmission configuration for a transmission based on a resource set associated with a transmission time, and receive information based on the determined transmission configuration. An apparatus may identify a resource set, acquire a transmission configuration of the resource set, and receive information on the channel based on the transmission configuration.