Network Controlled Repeater for 5G Coverage and Adaptability
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Solution Overview
Problem
The deployment of 5G systems, especially in the millimeter wave band, faces significant challenges in enhancing cell coverage due to severe signal fading, and traditional RF repeaters lack the ability to communicate with network devices, limiting their flexibility in adapting to environmental changes.
Innovation Solution
A repeater system that can communicate with network devices via a control link, supporting uplink and downlink transmission of CP-OFDM waveforms, allowing for dynamic configuration of forwarding operations based on network conditions, thereby enhancing signal coverage and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional RF repeaters are deployed to enhance signal coverage in 5G millimeter wave systems, then signal coverage is improved, but the repeaters lack the ability to communicate with network devices, reducing flexibility and adaptability to environmental changes
Solution Approach 1:
The repeater is equipped with a control link that enables bidirectional communication with the network device. This feedback mechanism allows the network device to send control information to the repeater and receive status information from the repeater, enabling dynamic adjustment of forwarding parameters based on environmental conditions and network requirements, thus resolving the contradiction between coverage enhancement and adaptability
Solution Approach 2:
The repeater is designed with multi-functional capabilities, including signal forwarding function and communication function with network devices. By integrating these multiple functions into a single device, the repeater can both enhance coverage and adapt to environmental changes through control link communication, eliminating the need for separate devices
2Strength
If traditional RF repeaters are used for coverage enhancement, then signal strength is improved, but the device complexity remains low which limits configuration flexibility
Solution Approach 1:
The repeater transitions from a static, fixed-configuration device to a dynamic, programmable device. The control link enables the network device to dynamically configure forwarding parameters, gain settings, and operational modes based on real-time network conditions, allowing the repeater to maintain high signal strength while achieving flexible configuration through software control
Data Source
AI summary
A network controlled repeater includes: forwarding processor circuitry; and communicating processor circuitry configured to: transmit capability information for discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) waveforms to a network device, and receive control information from the network device via a control link, wherein the network controlled repeater supports cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveforms for uplink and downlink, an uplink modulation scheme and a downlink modulation scheme; and the forwarding processor circuitry is further configured to perform forwarding at a backhaul link and/or an access link according to the control information.