Wireless Repeater Uplink Power Control Across Multiplexed Links
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently controlling transmission powers of various types of uplink signals in wireless repeaters to enhance radio network performance.
Innovation Solution
A method and apparatus for a wireless repeater that determines uplink transmission power values based on power control information, multiplexing modes, link ON/OFF periods, communication directions, and priority criteria, allowing efficient power management for control and backhaul links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless repeater amplifies and retransmits uplink signals, then coverage extension and signal strength are improved, but transmission power control complexity increases due to multiple types of uplink signals
Solution Approach 1:
The patent segments power control into separate processes for different uplink signal types. The repeater determines first uplink power information for control signals (PUCCH, PUSCH, SRS) and second uplink power information for backhaul signals independently, then applies appropriate power control parameters to each segment based on its specific requirements and multiplexing mode
Solution Approach 2:
The patent implements dynamic power control by adjusting power parameters based on real-time conditions. The repeater dynamically selects power control approaches (open-loop, closed-loop, or hybrid) for different uplink signals based on multiplexing modes, link ON/OFF periods, and communication directions, allowing flexible adaptation to changing network conditions
2Productivity
If different power control parameters are used for different uplink signals, then transmission efficiency is improved, but determination complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring power control parameters and approaches for different signal types and multiplexing modes. The repeater pre-determines which power control approach to use based on the multiplexing mode (e.g., time-division, frequency-division, or spatial-division multiplexing) before actual transmission, simplifying real-time power determination
Solution Approach 2:
The patent utilizes parameter changes by adjusting power control parameters based on identified conditions. When different multiplexing modes are detected, the repeater changes power control parameters accordingly, selecting appropriate power reference values and control approaches to optimize transmission efficiency for each signal type
3Measurement precision
If power reference values are adjusted based on multiplexing modes, then power control accuracy is improved, but processing overhead increases
Solution Approach 1:
The repeater performs self-service by autonomously determining power control parameters based on identified multiplexing modes and signal types without requiring extensive external coordination. The device independently adjusts power reference values according to its own operational state and detected conditions, reducing processing overhead while maintaining accuracy
Data Source
AI summary
An operation method of a first device may comprise the steps of: receiving device control information for controlling the first device from a second device; identifying one or more types of power control information, which are included in the device control information and related to uplink power control of the first device; identifying an association relationship between the one or more types of power control information and one or more resources for uplink transmission of the first device; and on the basis of the one or more types of power control information associated with the one or more resources, determining one or more uplink transmission power values corresponding to the one or more resources.