FDR Mode Resource Block Group Configuration for Interference Management
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Solution Overview
Problem
Full Duplex Radio (FDR) systems face significant interference challenges due to simultaneous transmission and reception in the same frequency band, leading to self-interference and inter-link interference, which affect communication performance.
Innovation Solution
A method for resource allocation by a Base Station (BS) in a wireless communication system, where Resource Block Groups (RBGs) are configured based on whether User Equipment (UE) operates in Full Duplex Radio (FDR) or Half Duplex (HD) mode, with non-contiguous RBs in FDR mode to minimize Inter-Modulation Distortion (IMD) and contiguous RBs in HD mode, allowing for efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If contiguous RBs are allocated in FDR mode, then resource allocation efficiency is improved, but Inter-Modulation Distortion (IMD) affecting adjacent RBs increases
Solution Approach 1:
The patent divides the Resource Block Group (RBG) into non-contiguous RBs in the frequency domain for FDR-mode UEs, segmenting the resource allocation to prevent IMD affecting adjacent RBs while maintaining efficient resource utilization
Solution Approach 2:
The patent applies different RBG configuration strategies based on UE operating mode: non-contiguous RBs for FDR mode to minimize IMD, and contiguous RBs for HD mode to maximize efficiency, tailoring the resource allocation quality to local operational requirements
2Object-generated harmful factors
If non-contiguous RBs are allocated in FDR mode, then Inter-Modulation Distortion (IMD) is minimized, but resource allocation complexity increases
Solution Approach 1:
The patent dynamically adjusts RBG configuration based on UE operating mode (FDR or HD), switching between non-contiguous and contiguous RB allocations as needed, making the system adaptable to different operational requirements without fixed complexity
3Productivity
If FDR mode is used, then system capacity is doubled by simultaneous transmission and reception, but self-interference and inter-link interference increase
Solution Approach 1:
The patent segments frequency resources into non-contiguous RBs for FDR-mode UEs, separating transmitted and received signals in the frequency domain to reduce self-interference while maintaining simultaneous transmission and reception capabilities
Solution Approach 2:
The patent changes the frequency domain parameters of resource allocation by using non-contiguous RB configurations for FDR-mode UEs, adjusting the spectral distribution to minimize interference while preserving the high capacity benefits of full-duplex operation
Data Source
AI summary
A method for allocating resources by a Base Station (BS) in a wireless communication system is disclosed. The method includes configuring a Resource Block Group (RBG) dependent on whether a User Equipment (UE) operates in Full Duplex Radio (FDR) mode or Half Duplex (HD) mode, and allocating resources to the UE in units of the configured RBG. The RBG includes a plurality of Resource Blocks (RBs).