Multiplex TDD Sync Detection Module for Repeater Cost Reduction
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Solution Overview
Problem
Legacy TDD repeaters require separate sync detection modules for each frequency band, leading to increased cost and complexity due to challenges in processing UL/DL configuration and synchronization information, resulting in higher costs and complexity with additional frequency bands.
Innovation Solution
A single TDD sync detection module is configured to determine UL/DL configuration information for multiple TDD signals across different frequency ranges, using synchronization information to switch between uplink and downlink signals, reducing the need for multiple modules and simplifying circuitry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate sync detection modules are used for each frequency band, then synchronization accuracy for each band is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies universality by designing a single sync detection module that can detect synchronization signals across multiple frequency bands. The module processes TDD configuration information and synchronization signals from different bands through a unified detection mechanism, eliminating the need for separate modules per band while maintaining synchronization accuracy.
Solution Approach 2:
The patent merges the functionality of multiple separate sync detection modules into a single integrated module. The module combines processing capabilities for multiple frequency bands, consolidating what would traditionally require separate hardware components into one unified structure, thereby reducing device complexity.
2Reliability
If separate sync detection modules are used for each frequency band, then band-specific synchronization is improved, but manufacturing cost increases
Solution Approach 1:
The single sync detection module is designed with universal capability to handle multiple frequency bands, reducing the total component count required for manufacturing. This multi-functional approach maintains synchronization reliability across bands while lowering production costs through simplified bill of materials and assembly processes.
Solution Approach 2:
The module employs parameter changes by dynamically adjusting detection parameters based on the active frequency band. This allows a single hardware module to adapt to different bands through software or configuration changes, eliminating the need for multiple fixed-configuration modules and reducing manufacturing complexity.
3Adaptability or versatility
If multiple sync detection modules are used, then handling of UL/DL configuration across bands is improved, but circuitry complexity increases
Solution Approach 1:
The single sync detection module provides universal handling of UL/DL configuration across multiple frequency bands. It processes TDD configuration information from different bands through a unified detection and processing path, maintaining adaptability to various band configurations while avoiding the circuitry complexity of multiple separate modules.
Data Source
AI summary
A technology is described for a repeater that can comprise: a first port; a second port; a first amplification and filtering path coupled between the first port and the second port, wherein the first amplification and filtering path is configured to amplify and filter a first time division duplex (TDD) signal in a first frequency range of a first TDD uplink (UL) signal; a second amplification and filtering path coupled between the first port and the second port, wherein the second amplification and filtering path is configured to amplify and filter a second TDD signal in a second frequency range of a second TDD downlink (DL) signal; and a modem configured to generate an UL/DL indication signal for the first frequency range, and send the UL/DL indication signal to the repeater.