Sub-Band Full Duplex Switching for Traffic-Adaptive Interference Control
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies due to fixed SBFD modes that do not adapt to varying traffic conditions, leading to resource waste or excessive latency, and self-interference issues in full-duplex operations.
Innovation Solution
Implement dynamic switching between UE and network node SBFD modes based on identified patterns, allowing adaptive communication strategies to optimize resource utilization and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed SBFD modes are used, then device complexity is reduced, but network resource efficiency deteriorates due to inability to adapt to varying traffic conditions
Solution Approach 1:
The patent implements dynamic switching between different SBFD modes (first SBFD mode and second SBFD mode) based on detected traffic conditions. The system transitions from static fixed modes to dynamic adaptive modes, where the network node selects the appropriate mode according to real-time traffic patterns, thereby improving network resource efficiency while managing complexity through automated decision-making
Solution Approach 2:
The patent changes the operational parameters of SBFD communication by switching between different modes with distinct sub-band configurations. The first SBFD mode uses a first set of sub-bands while the second SBFD mode uses a second set, allowing parameter adaptation to traffic conditions without requiring manual reconfiguration, thus resolving the contradiction between efficiency and complexity
2Speed
If full-duplex operations are used, then communication speed is improved, but self-interference increases
Solution Approach 1:
The patent segments the frequency spectrum into different sub-bands and divides communication into distinct modes: a first SBFD mode for downlink communication and a second SBFD mode for uplink communication. This segmentation allows full-duplex operations to proceed in different frequency segments simultaneously, improving communication speed while managing self-interference through spatial and spectral separation
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a communication manager that detects traffic conditions and selects the appropriate SBFD mode. This intermediary layer mediates between the desire for high-speed full-duplex communication and the need to manage self-interference, making intelligent decisions about mode selection based on real-time conditions
3Productivity
If adaptive SBFD mode switching is implemented, then network resource efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling the network node to autonomously detect traffic conditions and select the appropriate SBFD mode without external intervention. The communication manager automatically monitors traffic patterns and makes decisions about mode switching, reducing the need for complex manual control while improving adaptability and resource efficiency
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, information identifying a sub-band full duplex (SBFD) pattern, wherein the information identifying the SBFD pattern includes an indicator of whether the SBFD pattern is for a UE SBFD mode or a network node SBFD mode. The UE may communicate, with the network node, on one or more sub-bands in accordance with the SBFD pattern and the indicator of whether the SBFD pattern is for the UE SBFD mode or the network node SBFD mode. Numerous other aspects are described.