Terminal Panel Activation for Beam Gain and Power Trade-offs
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Solution Overview
Problem
In future radio communication systems, user equipment (UE) faces challenges in activating and deactivating multiple panels effectively, leading to potential degradation in system performance due to increased power consumption and decreased beam gain if these panels are not used appropriately.
Innovation Solution
A terminal equipped with a receiving section to receive information for activating or deactivating multiple panels, and a control section to manage panel usage based on this information, ensuring appropriate utilization of panels for both downlink reception and uplink transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple panels are used for downlink reception and uplink transmission, then beam gain is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic panel activation and deactivation based on communication conditions. The terminal receives activation/deactivation information from the base station and dynamically switches between using multiple panels (for high beam gain requirements) and using fewer panels (for power saving), making the system adaptable to varying operational demands rather than statically using all panels continuously
Solution Approach 2:
The patent changes the operational state parameter of panels from a static configuration to a dynamic one controlled by activation/deactivation commands. By receiving control information that specifies which panels should be active, the system adjusts the number and state of operational panels to match current communication needs, thereby optimizing the trade-off between beam gain and power consumption
2Use of energy by moving object
If multiple panels are not appropriately activated, then power consumption decreases, but system performance degrades
Solution Approach 1:
The patent establishes a feedback control mechanism where the base station monitors communication conditions and sends activation/deactivation information to the terminal. This closed-loop control ensures that panels are activated when system performance requires them (maintaining reliability) and deactivated when they are not needed (saving power), preventing both excessive power consumption and performance degradation
Solution Approach 2:
The patent uses preliminary configuration where the base station pre-configures multiple panels in the terminal and provides activation/deactivation commands as needed. This allows the terminal to have panels ready for immediate use when required, ensuring that system performance can be quickly restored or maintained without degradation when communication conditions demand multiple panels
3Device complexity
If panel activation is not clearly defined, then device complexity is reduced, but beam gain decreases
Solution Approach 1:
The patent introduces an intermediary control mechanism where the base station acts as the mediator that manages panel activation and deactivation. Instead of the terminal autonomously managing complex panel control decisions, the base station provides clear activation/deactivation information, simplifying the terminal's device complexity while ensuring that beam gain requirements are met through centralized control
Data Source
AI summary
A terminal is disclosed including a receiver that receives a first downlink control information (DCI) for scheduling a first Physical Uplink Shared Channel (PUSCH) and receives a second DCI for scheduling a second PUSCH; and a processor that controls, based on the first DCI and the second DCI, simultaneous transmission of the first PUSCH and the second PUSCH by using a first panel and a second panel, wherein when group-based beam reporting is configured, each of the first panel and the second panel corresponds to each respective group of the group-based beam reporting. In other aspects, a radio communication method, a base station, and a system are also disclosed.