Full-Duplex Wireless Communication Antenna Port Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G communication systems face challenges in enabling full-duplex operation in distributed multiple-input multiple-output (MIMO) networks, particularly in selecting antenna ports for effective channel state information (CSI) reporting and coherent joint transmission across spatially distributed panels, which affects data transmission efficiency and interference management.
Innovation Solution
The system allows user equipment (UE) to receive configuration information from a base station to identify and report amplitude coefficients for multiple transmit-receive points (TRPs), enabling full-duplex or half-duplex operations based on channel and interference measurements, and selects appropriate antenna panels for downlink coherent joint transmission using a codebook for precoding across distributed panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex operation is enabled in distributed MIMO systems, then data transmission efficiency is improved, but interference management becomes more difficult
Solution Approach 1:
The system segments antenna ports into different sets (first set and second set) with distinct operational modes. The first set operates in full-duplex mode for simultaneous transmission and reception, while the second set operates in half-duplex mode, thereby dividing the complex interference management task into manageable segments with different interference characteristics.
Solution Approach 2:
Different antenna ports are assigned different operational characteristics (full-duplex vs. half-duplex modes) based on their specific locations and interference profiles. This local differentiation allows each antenna port to operate optimally for its specific role, with full-duplex ports benefiting from higher throughput and half-duplex ports providing interference mitigation.
2Measurement precision
If antenna ports are dynamically selected for CSI reporting, then measurement precision is improved, but device complexity increases
Solution Approach 1:
Instead of requiring CSI reporting from all antenna ports, the system selectively reports CSI only from a subset of antenna ports (either the first set operating in full-duplex mode or the second set operating in half-duplex mode). This partial action approach reduces the complexity of CSI reporting while maintaining sufficient measurement precision for effective channel state assessment.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A user equipment (UE) in a communication system is provided. The UE comprises a transceiver and a controller configured to receive, from a base station, configuration information associated with a multiple transmit-receive points (TRPs): identify amplitude coefficients associated with the multiple TRPs based on the configuration information; and transmit, to the base station, a channel state information (CSI) report includes indicators indicating the amplitude coefficients associated with the multiple TPRs.