Sidelink Power Regulation Modes for 5G Interference Control
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Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, configuring sidelink communications to optimize transmit power while minimizing interference on access links and other sidelinks is challenging, as higher power levels can cause interference and must comply with regulatory standards based on factors like association with a base station, location, and frequency band.
Innovation Solution
Client devices implement sidelink communications using regulation modes such as Standard Power (SP), Low Power Indoor (LPI), and Very Low Power (VLP) modes, determining and advertising their transmit power parameters to align with the lower power level for optimal communication, and switching between modes based on association with base stations or default settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If higher transmit power levels are used for sidelink communications, then communication range and reliability are improved, but interference on access links and other sidelinks increases
Solution Approach 1:
The system dynamically adjusts transmit power levels based on real-time conditions including device associations, location, and frequency band. Client devices switch between different regulation modes (SP, LPI, VLP) depending on their operational context, allowing the transmit power to be optimized for each specific situation rather than using a fixed high power level.
Solution Approach 2:
The patent changes the power level parameter based on regulatory mode configurations. By implementing multiple regulation modes with different power characteristics (Standard Power, Low Power Indoor, Very Low Power), the system can select appropriate power parameters that balance communication reliability with interference minimization for different operational scenarios.
2Object-generated harmful factors
If transmit power is reduced to minimize interference, then harmful effects are reduced, but communication reliability and range deteriorate
Solution Approach 1:
The system applies different power levels locally to different communication scenarios. Instead of using a uniform low power level across all sidelink communications, the patent allows each client device to select from multiple regulation modes (SP, LPI, VLP) based on its specific operational context, such as whether it is associated with a base station, its location, and the frequency band being used.
Solution Approach 2:
The transmit power is dynamically adjusted based on real-time operational conditions. Client devices can switch between regulation modes depending on their association status with base stations, their geographic location, and the frequency band in use, allowing the system to maintain high power when needed for reliability while using lower power when sufficient to minimize interference.
3Adaptability or versatility
If multiple regulation modes are implemented to handle different scenarios, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal regulation mode framework where client devices can operate in multiple modes (SP, LPI, VLP) depending on their operational context. This multi-functional approach allows a single device to adapt to various scenarios including being associated with or disconnected from base stations, different locations, and different frequency bands, rather than requiring separate hardware for each scenario.
Solution Approach 2:
The system uses dynamic mode selection based on operational conditions. Client devices automatically select appropriate regulation modes based on whether they are associated with base stations, their location, and the frequency band in use. This dynamic adaptation simplifies the user experience while maintaining high adaptability across different operational scenarios.
4Length of moving object
If transmit power is increased to ensure coverage, then communication range is improved, but regulatory compliance becomes more difficult to maintain
Solution Approach 1:
The patent implements multiple regulation modes with different power parameters to comply with various regulatory requirements. The Standard Power (SP) mode, Low Power Indoor (LPI) mode, and Very Low Power (VLP) mode provide different transmit power levels that can be selected based on the operational scenario and regulatory requirements, allowing the system to maintain both communication range and regulatory compliance.
Solution Approach 2:
The system dynamically selects the appropriate regulation mode based on operational conditions including whether the device is associated with a base station, its location, and the frequency band being used. This dynamic mode selection ensures that the transmit power remains within regulatory limits while providing sufficient communication range for each specific scenario.
Data Source
AI summary
Disclosed are systems and techniques for performing sidelink communications. For instance, a first client device can determine a first transmit power parameter for transmitting sidelink communications. The first transmit power parameter can either be received from a base station associated with the first client device or it can be a default parameter based on the first client device not being associated with a base station. The first client device can transmit, to a second client device, a first sidelink transmission having a first power level corresponding to the first transmit power parameter. The first client device can receive, from the second client device, a first sidelink reception having a second power level corresponding to a second transmit power parameter.