Dynamic Phase Shifting Resolution Management in Beam Communications
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Solution Overview
Problem
Wireless communications systems face inefficiencies due to high processing overhead caused by high-precision phase shifters, leading to potential interference and degraded performance, especially in beam-based communications using millimeter wave frequencies.
Innovation Solution
User equipment (UE) dynamically updates the phase shifting resolution based on interference metrics and power saving values, requesting to switch between high and low resolution phase shifters, with network entity approval, to manage beam refinement processes and reduce side lobe interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high-precision phase shifter is used to improve beam-based communication performance, then communication quality is improved, but processing overhead at the UE increases significantly
Solution Approach 1:
The patent implements dynamic switching between high-precision and low-precision phase shifters based on communication conditions. The network entity configures both types of phase shifters at the UE and dynamically selects which one to use based on factors like channel conditions, interference levels, and power consumption requirements, making the system adaptable rather than static
Solution Approach 2:
The patent changes the precision parameter of the phase shifter dynamically. By switching between high-precision and low-precision phase shifters, the system adjusts the phase resolution parameter according to current communication needs, allowing high precision when needed and low precision when sufficient, thereby optimizing the trade-off between communication quality and processing overhead
2Object-generated harmful factors
If a high-precision phase shifter is used to reduce side lobe interference, then interference is minimized, but processing overhead and power consumption increase
Solution Approach 1:
The system dynamically switches between high-precision and low-precision phase shifters based on interference conditions. When side lobe interference is problematic, the high-precision phase shifter is activated to suppress it effectively. When interference levels are acceptable, the system switches to the low-precision phase shifter to reduce power consumption, creating a dynamic response to interference conditions
Solution Approach 2:
The patent converts the harmful effect of high power consumption into a beneficial feature by making it conditional. Instead of continuously consuming high power to maintain low interference, the system only activates high-precision mode when interference suppression is actually needed, transforming the potential harm of high power consumption into a controlled, situation-dependent benefit
3Reliability
If beam refinement process is continuously performed to improve beam accuracy, then communication performance is improved, but processing overhead increases
Solution Approach 1:
The patent implements periodic beam refinement rather than continuous refinement. The beam refinement process is triggered at specific intervals or under specific conditions (such as when channel conditions change significantly or when communication quality degrades), rather than running continuously, thereby reducing processing overhead while maintaining beam accuracy when needed
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. In some systems, a user equipment (UE) may transmit, to a network entity, a first signal including a request to update a resolution of a phase shifting operation associated with beam-based communications. The UE may receive, from the network entity, a second signal approving the request. The UE may communicate using a beam according to an updated resolution of the phase shifting operation based on the second signal approving the request. Additionally, or alternatively, the UE may transmit a first signal including a request to suspend a beam refinement process based on the resolution of the phase shifting operation. The UE may receive a second signal approving the request to suspend the beam refinement process. The UE may communicate with the network entity using a beam based on suspending further beam refinement in response to the second signal.