Adaptive Terminal Uplink Power for Reliable Resource Requests
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Solution Overview
Problem
In Long Term Evolution (LTE) communication, uplink transmissions from terminals to base stations experience delays and inefficiencies due to high bit error rates and repeated scheduling requests, leading to reduced communication efficiency.
Innovation Solution
A power adjustment method for uplink transmissions, where terminals dynamically adjust their transmission power based on response signals from the base station, using specific formulas and thresholds to optimize power usage and resource requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal increases transmission power to improve uplink signal quality, then the bit error rate decreases, but power consumption increases and communication efficiency deteriorates due to repeated transmissions
Solution Approach 1:
The patent implements dynamic power adjustment where the terminal adapts its transmission power based on real-time channel conditions and base station feedback. The power level changes dynamically across different transmission attempts rather than remaining static, optimizing the balance between reliability and energy consumption.
Solution Approach 2:
The base station provides feedback information to the terminal about the reception status of uplink signals. The terminal uses this feedback to adjust its transmission power for subsequent transmissions, creating a closed-loop control system that improves reliability while avoiding unnecessary power consumption.
2Reliability
If the terminal sends scheduling requests multiple times to ensure resource allocation, then resource allocation success rate improves, but transmission delay increases
Solution Approach 1:
The terminal dynamically adjusts the number of scheduling request transmissions and the timing between requests based on channel conditions and previous feedback. This adaptive approach ensures reliable resource allocation while minimizing unnecessary delays compared to fixed retry mechanisms.
Solution Approach 2:
The terminal performs preliminary assessments of channel conditions before sending scheduling requests and uses feedback to prepare for subsequent transmissions. This preliminary action allows the terminal to optimize transmission timing and reduce overall delay while maintaining high allocation success rates.
3Ease of operation
If the terminal uses fixed transmission power for uplink signals, then power management is simple, but communication efficiency decreases due to power waste and repeated transmissions
Solution Approach 1:
The terminal autonomously adjusts its transmission power based on feedback from the base station without requiring complex centralized control. This self-service approach maintains operational simplicity while significantly improving communication efficiency through adaptive power management.
Data Source
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AI summary
Embodiments of the present invention disclose a power adjustment method, a terminal, and a storage medium. The method includes: sending, by a terminal, an uplink resource request by using a power of a; if the terminal receives no resource allocation signaling within a predetermined time after the uplink resource request is sent, sending, by the terminal, the uplink resource request again by using a power of b1, wherein b1 is greater than a. Embodiments of the present invention may improve communication efficiency.