XDD BWP Switching for Resource Overlap Management
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Solution Overview
Problem
Existing communication systems face challenges in efficiently managing and switching bandwidth parts (BWP) in cross-division duplex (XDD) systems, particularly in ensuring simultaneous downlink (DL) and uplink (UL) communications while managing resource overlaps.
Innovation Solution
The proposed XDD system implements a method where a terminal receives BWP configuration information from a base station, allowing for temporal separation of DL and UL communications in one slot and simultaneous DL and UL communications in another slot, based on defined priorities for resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If BWP switching is implemented in XDD systems to enable flexible resource allocation, then adaptability is improved, but device complexity increases due to the need to manage multiple BWP configurations and switching mechanisms
Solution Approach 1:
The system segments the bandwidth into multiple Bandwidth Parts (BWPs), each with specific UL/DL configurations. This allows independent management and switching of different BWP segments to adapt to varying traffic requirements without managing the entire bandwidth as a single unit, thus improving adaptability while controlling complexity through modular organization
Solution Approach 2:
The patent implements dynamic BWP switching mechanisms where the system can transition between different BWP configurations based on real-time traffic conditions. This dynamic adaptation allows the system to optimize resource allocation for different service types (eMBB, URLLC, mMTC) while maintaining manageable complexity through standardized switching procedures and priority-based resource management
2Productivity
If simultaneous DL and UL communications are enabled in XDD systems, then productivity is improved, but resource overlap conflicts increase requiring complex priority management
Solution Approach 1:
The system applies different priority rules and resource management strategies to different resource types and service categories. High-priority services (URLLC) receive preferential treatment in resource allocation and conflict resolution, while lower-priority services (eMBB) use standard procedures. This localized quality differentiation enables simultaneous DL/UL communications with manageable conflict resolution
Solution Approach 2:
The patent introduces priority management mechanisms and resource coordination protocols that act as intermediaries between conflicting DL and UL transmissions. These intermediary mechanisms resolve resource overlaps by applying predefined priority rules, allowing simultaneous communications while maintaining system order and preventing conflicts through standardized mediation procedures
3Adaptability or versatility
If multiple BWP configurations are maintained for different service types, then adaptability is improved, but loss of time increases due to BWP switching delays
Solution Approach 1:
The system performs preliminary configuration of multiple BWP parameters and characteristics in advance, storing them as pre-configured templates. When service type changes are needed, the system can quickly switch between pre-configured BWPs without performing complex real-time calculations, thus maintaining adaptability while minimizing switching time delays
Solution Approach 2:
The patent optimizes BWP switching by changing only the necessary parameters when transitioning between configurations rather than reconfiguring the entire BWP structure. This selective parameter update approach maintains service type adaptability while reducing the time required for BWP switching by minimizing the scope of changes needed
Data Source
AI summary
A method of a terminal, includes: receiving first DL BWP configuration information comprising an ID of a first DL BWP; receiving first UL BWP configuration information comprising an ID of a first UL BWP; receiving, from the base station, second DL BWP configuration information comprising an ID of a second DL BWP and an ID of a second UL BWP; and recognizing, through the ID of the second UL BWP, that the second DL BWP configuration information is information for DL-UL configuration of the terminal, wherein, in a first slot, when the first DL BWP and the first UL BWP are temporally separated from each other, DL communication and UL communication are not simultaneously performed, by the terminal, with the base station, and wherein, in a second slot, the DL communication and the UL communication are simultaneously performed with a base station based on the second DL BWP configuration information.