Antenna Array Selection for Wireless Blockage Mitigation
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Solution Overview
Problem
Wireless communication systems face challenges in maintaining effective communication due to antenna blockages caused by user body parts, leading to degraded performance and inefficiencies.
Innovation Solution
User equipment (UE) selects and transmits feedback on specific antenna array configurations based on detected blockage conditions, switching between predetermined sets to optimize communication, using methods like frequency-modulated continuous-wave (FMCW) radar for sensing blockages and transmitting messages to network entities about selected antenna arrays and transmission configuration indicators (TCI) states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single antenna array is used for communication, then device complexity is reduced, but communication reliability deteriorates due to blockages from user body parts
Solution Approach 1:
The patent implements dynamic antenna array selection where the UE switches between different antenna arrays based on real-time blockage detection. The system monitors for blockages and dynamically selects from multiple predetermined antenna arrays (e.g., first antenna array covering first edge, second antenna array covering second edge) to maintain communication reliability under varying conditions.
Solution Approach 2:
The patent divides the antenna system into multiple separate antenna arrays positioned at different locations on the UE. Each antenna array is configured to cover specific edges or portions of the UE, allowing independent selection based on blockage conditions. This segmentation enables the system to overcome blockages by switching to antenna arrays in unblocked positions.
2Reliability
If multiple antenna arrays are monitored and selected dynamically, then communication reliability improves, but power consumption increases
Solution Approach 1:
The patent pre-configures multiple antenna arrays with predetermined configurations before operation. These antenna arrays are prepared in advance with known coverage areas and characteristics, allowing the UE to quickly switch between them without requiring complex real-time optimization calculations, thereby reducing processing power and energy consumption during dynamic selection.
Solution Approach 2:
The patent implements a feedback mechanism where the UE monitors for antenna blockage conditions and provides feedback to the network entity about the selected antenna array. This feedback loop enables efficient antenna selection by allowing the network to adapt transmissions based on the UE's reported blockage conditions and selected antenna configuration, optimizing power usage across the communication system.
3Productivity
If antenna blockage is not detected and mitigated, then device complexity remains low, but communication performance deteriorates
Solution Approach 1:
The patent implements self-service blockage detection where the UE autonomously monitors its own antenna blockage conditions using sensors or signal processing techniques. The UE independently determines when blockages occur and selects appropriate antenna arrays without requiring external assistance, enabling the device to self-manage communication reliability while maintaining relatively simple architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances communication reliability and efficiency by dynamically adapting antenna configurations to mitigate blockages, improving coverage and user experience by reducing latency and power consumption.
Implementation Method 1
using methods like frequency-modulated continuous-wave (FMCW) radar for sensing blockages
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support methods for selection of antenna arrays and beamforming feedback. In some cases, a user equipment (UE) may monitor for an antenna blockage condition at the UE and may select a set of antenna arrays for the UE for communications between the UE and a network entity based at least in part on whether the antenna blockage condition is detected, the set of antenna arrays selected from a multiple predetermined sets of antenna arrays of the UE. Additionally, the UE may transmit, to the network entity, a message indicative of whether the antenna blockage condition is detected and may communicate with the network entity using the set of antenna arrays in accordance with whether the antenna blockage condition is detected.