Dynamic Antenna Subset Selection for High-Speed UE Downlink
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for downlink reception in wireless communications systems fail to effectively adjust antenna configurations for different speed environments, leading to issues like data loss and higher latency in high-speed scenarios.
Innovation Solution
User equipment (UE) activates additional antennas for downlink reception when operating in high-speed environments by detecting the speed environment using mobility sensors or control signaling, allowing for enhanced antenna utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional antenna configuration methods are used, then device complexity is reduced, but downlink reception reliability deteriorates in high-speed environments
Solution Approach 1:
The patent implements dynamic antenna configuration by transitioning from static to adaptive antenna selection. The UE dynamically adjusts its antenna subset based on real-time speed detection, switching between a first antenna subset for low-speed environments and a second antenna subset for high-speed environments. This dynamic adaptation resolves the contradiction by improving reliability through environment-aware configuration while managing complexity through automated decision-making based on speed thresholds.
Solution Approach 2:
The patent changes the operational parameters of the antenna system by modifying the antenna subset selection based on speed environment parameters. When the UE detects high-speed movement, it changes the active antenna configuration from the first subset to the second subset, optimizing reception parameters for the current speed condition. This parameter change approach improves reliability without requiring complete system redesign, thus managing device complexity.
2Reliability
If additional antennas are activated for high-speed environments, then downlink data transmission success rate is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by selectively activating specific antenna subsets based on the local operating environment (speed condition). Rather than continuously powering all antennas, the system activates only the appropriate antenna subset (first or second) corresponding to the current speed environment. This localized activation strategy improves transmission success rate in high-speed conditions while minimizing overall power consumption by keeping unnecessary antennas inactive.
Solution Approach 2:
The patent implements dynamic power management through antenna subset switching. The system dynamically adjusts which antennas are active based on real-time speed detection, transitioning between different antenna configurations. This dynamic approach allows the UE to optimize the balance between power consumption and transmission success rate by activating additional antennas only when high-speed operation requires it, rather than maintaining all antennas active continuously.
3Use of energy by moving object
If antenna subset is reduced for power saving, then power consumption is reduced, but latency increases in high-speed scenarios
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple antenna subsets (first and second subsets) before the UE enters high-speed operation. The system prepares the appropriate antenna configuration in advance and can quickly switch between subsets based on speed detection. This preliminary preparation eliminates the need for complex real-time antenna selection during high-speed transmission, thereby reducing latency while maintaining power efficiency through pre-defined optimization points.
Solution Approach 2:
The patent implements dynamic switching between pre-configured antenna subsets to minimize latency. When the UE detects high-speed movement, it can quickly transition from the first antenna subset to the second antenna subset without undergoing complex real-time optimization. This dynamic switching between prepared configurations reduces the time required for antenna reconfiguration, thereby reducing latency while maintaining power consumption benefits through selective activation.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receiving, from abase station, control signaling scheduling transmission of a downlink message within a wireless channel resource. The UE may select a first antenna subset of a plurality of antennas of the UE to receive the downlink message. The UE may identify that a second antenna subset of antennas of the plurality of antennas of the UE is currently available to use for receiving the downlink message based at least in part on detecting a speed environment in which the UE is operating. The UE may monitor, for downlink reception of the downlink message, the wireless channel resource using the first antenna subset and one or more antennas of the second antenna subset.