Interleaved Full-Duplex Uplink-Downlink Transmission Configuration
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in improving spectral efficiency and managing full-duplex communications effectively, leading to inefficiencies in uplink and downlink transmission configurations.
Innovation Solution
Implementing an interleaved configuration for uplink and downlink transmissions in a full-duplex manner, where uplink and downlink transmissions are interlaced in the frequency domain, allowing non-overlapping frequency resources to share a time resource, with a base station configuring UE to use interlace assignments and resource block sets to optimize spectral efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional time-division duplexing is used for uplink and downlink transmissions, then interference between directions is minimized, but spectral efficiency deteriorates due to inability to utilize full duplex capabilities
Solution Approach 1:
The patent segments the frequency spectrum into multiple interlaced resource blocks, where odd-indexed resource blocks are allocated for uplink transmissions and even-indexed resource blocks are allocated for downlink transmissions. This frequency-domain segmentation enables simultaneous full-duplex operation while minimizing self-interference through careful resource isolation
Solution Approach 2:
The patent applies local quality by configuring different gap durations for uplink and downlink transmissions based on their specific interference characteristics. The base station configures a first gap duration for downlink transmissions and a second gap duration for uplink transmissions, optimizing each direction's resource allocation according to local interference conditions
2Object-generated harmful factors
If gap durations are added between uplink and downlink transmissions to reduce interference, then interference is minimized, but transmission time and spectral efficiency deteriorate
Solution Approach 1:
The patent implements dynamic gap duration configuration where the base station can independently adjust the first gap duration for downlink transmissions and the second gap duration for uplink transmissions based on real-time channel conditions and interference levels. This dynamic adaptation optimizes the balance between interference mitigation and spectral efficiency
Solution Approach 2:
The patent changes the temporal parameter of gap durations to optimize full-duplex operation. By configuring different gap durations for different transmission directions and adjusting them dynamically, the system minimizes interference while maximizing resource utilization and reducing time loss
3Productivity
If full-duplex configuration is implemented without interleaved resource allocation, then simultaneous uplink and downlink transmission capability is achieved, but interference management and resource allocation efficiency deteriorate
Solution Approach 1:
The patent segments frequency resources into interlaced patterns with clear uplink/downlink designation, creating a structured resource allocation framework that simplifies interference management while enabling simultaneous full-duplex transmissions
Solution Approach 2:
The patent transitions from time-division to frequency-domain resource allocation by implementing interleaved resource block patterns. This dimensional change from temporal to spectral separation enables full-duplex operation with simplified interference management through frequency-selective resource assignment
Data Source
AI summary
Apparatus, methods, and computer-readable media for facilitating interleaved uplink-downlink transmissions in full-duplex using unlicensed resources are disclosed herein. An example method for wireless communication of a user equipment (UE) includes receiving, from a base station, an indication of an interleaved configuration, the interleaved configuration corresponding to a full-duplex configuration including a first gap duration following a downlink transmission and a second gap duration following an uplink transmission. The example method also includes configuring at least one of uplink transmissions or downlink transmissions based on the indication. Additionally, the example method includes communicating with the base station via the interleaved configuration, communications with the base station including at least one of the uplink transmissions or the downlink transmissions.