Multi-Band RF Unit Control for Wireless Terminals
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently supporting multiple frequency bands due to rapid path loss and attenuation in the terahertz band, particularly for long-distance communication, and require advanced methods to manage resource allocation and RF unit operations across different bands.
Innovation Solution
A method and device that organically control RF units across multiple frequency bands by determining a common reference clock and resource allocation based on similarity in RF characteristics, allowing for efficient resource utilization and reduced power consumption by sharing reference signals and compensating for phase noise and frequency offsets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If THz band is used for wireless communication, then bandwidth and data rate are improved, but path loss and attenuation increase rapidly
Solution Approach 1:
The patent combines THz band communication with sub-THz band communication in a dual-connectivity architecture. The terminal device simultaneously maintains connections to both THz base stations (for high data rate) and sub-THz base stations (for reliable signal transmission), merging the advantages of both frequency bands to achieve high speed while mitigating path loss through diversity combining.
2Reliability
If multiple RF units are individually controlled for each frequency band, then communication reliability is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent introduces a unified RF unit control module that manages multiple RF units across different frequency bands (THz and sub-THz) through a single control interface. This universal controller implements joint scheduling, resource allocation, and parameter management for all RF units, enabling multi-band operation while reducing control complexity and power consumption compared to independent control of each RF unit.
3Productivity
If resource allocation is optimized for each connection, then spectral efficiency is improved, but terminal processing complexity increases
Solution Approach 1:
The patent introduces a connection management module as an intermediary layer between the physical RF units and the terminal's baseband processor. This module handles resource allocation, scheduling, and parameter coordination for multiple connections (THz and sub-THz), performing joint optimization of spectral resources while shielding the terminal from the complexity of managing multiple frequency bands simultaneously.
Data Source
AI summary
A method for a terminal to support a plurality of frequency bands in a wireless communication system according to an embodiment of the present specification comprises the steps of: receiving connection-related information related to a plurality of connections (CN) based on different frequency bands and a reference connection (RCN) related to the plurality of CNs; determining at least one specific CN among the plurality of CNs on the basis of the similarity of the Radio Frequency (RF) characteristics between the RCN and each of the CNs; and transmitting a request message related to the at least one specific CN.