Wireless Device Service Multiplexing via Dynamic Power Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The 5G NR-U technology faces challenges in efficiently multiplexing services with different priority levels, particularly in unlicensed spectrum scenarios, where high priority services like URLLC require reliable and low-latency communications while low priority services like eMBB have less stringent requirements.
Innovation Solution
The proposed wireless communication method involves a device transmitting data in a first period and performing specific operations in subsequent periods based on channel power sensing. These operations include reducing or stopping data transmission, delaying, or puncturing data in overlapping periods to accommodate high priority service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data transmission continues in overlapping periods, then low priority service throughput is maintained, but high priority service latency requirement cannot be met
Solution Approach 1:
The patent applies dynamics by making the transmission power adjustable based on real-time channel conditions and priority requirements. The device dynamically changes power levels from normal power to reduced power when high priority services need the channel, allowing flexible adaptation between serving low priority services continuously versus yielding to high priority services when needed.
Solution Approach 2:
The patent changes the transmission power parameter as a mechanism to resolve the contradiction. By sensing channel power and comparing it against thresholds, the system adjusts the transmission power parameter to either maintain low priority service throughput or reduce it to accommodate high priority service latency requirements.
2Reliability
If transmission power is reduced to accommodate high priority service, then high priority service reliability is improved, but low priority service throughput decreases
Solution Approach 1:
The system dynamically adjusts transmission power based on real-time channel sensing and priority service requirements. When high priority services are detected, the power is reduced from normal level to a lower level, enabling reliable high priority transmission while allowing low priority services to continue at reduced throughput rather than completely stopping.
Solution Approach 2:
The transmission power parameter is changed based on channel power sensing results and service priority classification. The system compares sensed power against thresholds and adjusts the transmission power parameter accordingly, creating a flexible mechanism that balances high priority reliability needs with low priority throughput requirements.
3Reliability
If channel power sensing is performed continuously, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements periodic channel power sensing rather than continuous sensing. The device performs power sensing at specific intervals or triggered by certain conditions (such as before transmission or when channel conditions change), which maintains transmission reliability while significantly reducing the complexity of continuous monitoring and control.
Data Source
AI summary
A wireless communication method for use in a wireless device. The wireless communication method comprises transmitting data in a first period and performing a first operation in a second period which is within the first period.