Repeater Uplink Multiplexing for Phase Distortion and Power Mismatch
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing phase distortion and power mismatch during multiplexing of uplink signals in network-controlled repeaters, which can degrade signal quality and coverage.
Innovation Solution
Techniques are provided to address phase distortion and power mismatch by enabling network entities to determine and configure appropriate multiplexing configurations for repeaters, such as time-division or frequency-division multiplexing, based on feedback from repeaters regarding observed phase distortion and power imbalance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If uplink signals are multiplexed in a network-controlled repeater, then signal coverage is improved, but phase distortion and power mismatch occur degrading signal quality
Solution Approach 1:
The system dynamically selects between time-division multiplexing and frequency-division multiplexing based on observed phase distortion and power mismatch conditions. The multiplexing configuration is not fixed but adapts to changing channel conditions, allowing the system to maintain signal quality while providing coverage enhancement.
Solution Approach 2:
The patent changes the multiplexing parameter (time-division vs. frequency-division) based on measured phase distortion and power mismatch levels. By adjusting this fundamental parameter according to observed conditions, the system resolves the contradiction between providing coverage through multiplexing and maintaining signal quality.
2Manufacturing precision
If frequency-division multiplexing is used, then power mismatch is reduced, but phase distortion may occur
Solution Approach 1:
The system implements feedback mechanisms where the repeater measures phase distortion and power mismatch for each multiplexing configuration. Based on this feedback, the network entity determines the optimal multiplexing approach, creating a closed-loop system that continuously optimizes signal quality.
Solution Approach 2:
The multiplexing configuration dynamically switches between time-division and frequency-division based on which approach better mitigates the current dominant impairment (phase distortion or power mismatch), allowing the system to adapt to varying channel conditions.
3Manufacturing precision
If multiplexing configuration is determined by network entity, then signal quality is improved, but system complexity increases
Solution Approach 1:
The network entity acts as an intermediary that receives measurements from the repeater and determines the optimal multiplexing configuration. This centralizes the decision-making complexity in the network entity while keeping the repeater relatively simple, distributing the complexity burden to where processing capabilities exist.
Solution Approach 2:
The system uses feedback from repeater measurements to inform network entity decisions, allowing the network entity to determine configurations based on actual observed conditions rather than using complex real-time processing at the repeater itself.
Data Source
AI summary
Apparatus, methods, and computer-readable media for facilitating multiplexing of uplink signals at a repeater are disclosed herein. An example, a method for wireless communication at a repeater, includes obtaining a first uplink signal associated with a UE. The example method also includes providing a first uplink communication including the first uplink signal multiplexed with a second uplink signal, the second uplink signal being associated with an MT component of the repeater. Additionally, the example method includes obtaining a multiplexing configuration based in part on at least one of a phase distortion and a power mismatch associated with the first uplink communication. The example method also includes providing a second uplink communication based in part on the multiplexing configuration, the second uplink communication including a third uplink signal multiplexed with a fourth uplink signal.