High Pathloss Mode Switching in Wireless Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems struggle to maintain reliable communications in environments with excessive pathloss, such as millimeter wave networks, where traditional techniques fail to accommodate larger variations in pathloss, leading to communication failures.
Innovation Solution
The implementation of a high pathloss mode in wireless devices, which involves switching from a first mode to a second mode upon detecting a pathloss value exceeding a threshold. This mode adjusts parameters such as synchronization signal block length, modulation and coding scheme, and beam width to support continued wireless communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wireless communication techniques are used, then the system is simple and easy to operate, but it cannot support excessive pathloss values leading to communication failures
Solution Approach 1:
The system dynamically switches between a first mode (for normal pathloss conditions) and a second mode (for high pathloss conditions). The mode switching is triggered when pathloss exceeds a threshold, allowing the system to adapt its operation mode based on real-time channel conditions. This dynamic adaptation enables the system to maintain communication reliability across varying pathloss environments.
Solution Approach 2:
The patent changes key parameters when switching from the first mode to the second mode, including: increasing the synchronization signal block length, adjusting modulation and coding scheme, modifying beam width, and changing reference signal configuration. These parameter changes enable the system to accommodate high pathloss values while maintaining communication reliability.
2Reliability
If the synchronization signal block length is increased to support high pathloss mode, then communication reliability improves, but the time required for signal transmission increases
Solution Approach 1:
The system dynamically adjusts the synchronization signal block length based on pathloss conditions. In the first mode (normal conditions), a shorter block length is used to minimize time loss. When high pathloss is detected, the system switches to the second mode with a longer block length to improve reliability. This dynamic adjustment optimizes the trade-off between time efficiency and communication reliability.
Solution Approach 2:
The patent explicitly changes the synchronization signal block length parameter when transitioning between modes. The first mode uses a shorter block length for time efficiency, while the second mode uses a longer block length for enhanced reliability in high pathloss environments. This parameter change directly addresses the trade-off between transmission time and communication reliability.
3Adaptability or versatility
If multiple modes are implemented to handle different pathloss conditions, then pathloss adaptability improves, but device complexity increases
Solution Approach 1:
The system implements a dynamic mode switching mechanism that transitions between a first mode and a second mode based on pathloss threshold conditions. The switching decision is automated and triggered by monitoring pathloss values, reducing the need for complex manual configuration. This dynamic approach enables the system to handle multiple pathloss conditions while managing implementation complexity through automated decision-making.
Solution Approach 2:
The patent defines specific parameter changes associated with each mode (synchronization signal block length, modulation scheme, beam width, reference signal configuration). By establishing clear parameter mappings for each mode, the system simplifies the complexity of managing multiple modes. The parameters are pre-configured and automatically applied during mode transitions, reducing the operational complexity of pathloss adaptation.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A wireless device (e.g., a user equipment and/or base station) may operate in a first mode in a wireless network over a radio frequency spectrum band. The wireless device may receive a signal indicating that a value of the radio frequency spectrum band has satisfied a threshold value. The wireless device may switch, based at least in part on the signal indicating that the value has satisfied the threshold value, from the first mode to a second mode for wireless communications in the wireless network, wherein a first length of a first synchronization signal block associated with the first mode is shorter than a second length of a second synchronization signal block associated with the second mode.