Full-Duplex Base Station TX-RX Pairing for Spectrum Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless networks operate in half-duplex mode using Time Division Duplex (TDD) or Frequency Division Duplex (FDD), limiting spectrum efficiency due to the inability to simultaneously transmit and receive on the same frequency band, whereas full-duplex communication has the potential to double spectrum efficiency by serving uplink and downlink clients simultaneously.
Innovation Solution
A base station selects transmit-receive UE pairs based on channel strengths and data sizes to perform full-duplex communication, using a transceiver unit with antennas and a processor to form TX-RX UE pairs and trigger channel measurements and information feedback, enabling simultaneous transmission and reception on the same frequency band.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex communication is implemented to serve uplink and downlink clients simultaneously on the same frequency band, then spectrum efficiency is improved and doubled, but the complexity of configuration and measurement procedures increases
Solution Approach 1:
The patent segments the configuration and measurement procedures into distinct phases: first configuring TX-RX UE pairs by selecting transmitting and receiving UEs based on channel strengths, then separately performing channel measurements and information feedback. This segmentation allows the complex full-duplex setup to be managed through structured, modular steps rather than a monolithic procedure.
Solution Approach 2:
The base station performs preliminary actions by pre-selecting and configuring TX-RX UE pairs before actual data transmission begins. The base station determines suitable transmitting and receiving UEs based on channel strengths in advance, establishing the pairing structure beforehand. This preliminary configuration simplifies subsequent measurement and feedback procedures by having the UE pairing framework already in place.
2Reliability
If the base station selects TX-RX UE pairs based on multiple channel strength measurements, then communication quality is improved, but the measurement overhead and signaling complexity increase
Solution Approach 1:
The patent applies local quality by focusing channel strength measurements on specific critical links: the channel between the base station and transmitting UE, the channel between the base station and receiving UE, and the channel between transmitting and receiving UEs. Rather than measuring all possible channel combinations, the system selectively measures only the locally relevant channels needed for TX-RX pair configuration, reducing overall measurement overhead while maintaining communication quality.
Data Source
AI summary
A configuration and measurement method for performing a full-duplex communication and a base station (BS) using the same is disclosed. In an embodiment, a base station selects a transmitting user equipment (UE) among one or more transmitting UEs and a receiving UE among one or more receiving UEs to form a transmit-receive (TX-RX) UE pair of one or more TX-RX UE pairs for performing the full-duplex communication, based on a first channel strength between the BS and the transmitting UE, a second channel strength between the BS and the receiving UE, and a third channel strength the transmitting UE and the receiving UE. And the BS transmits an informing message of the one or more TX-RX UE pairs for triggering the channel measurement and the information fed back.