Wireless Resource Reconfiguration for Low-Latency SBFD Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication networks face challenges with excessive latency and constrained transmission energy in Time Division Duplex (TDD) mode, particularly for latency-sensitive applications like vehicle-to-vehicle communication and remote surgery, due to limited uplink transmission opportunities and sub-optimal radio coverage.
Innovation Solution
Implementing Sub-band Full Duplex (SBFD) mode in wireless networks to re-configure transmission resources dynamically, allowing simultaneous downlink and uplink transmissions within specific sub-bands, and enhancing flexible formats for slots or symbols to accommodate varying traffic demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If TDD mode is used with traditional time division multiplexing, then transmission resource scheduling is simplified, but transmission latency increases and uplink transmission opportunities are limited
Solution Approach 1:
The patent segments the transmission resource pool into multiple sub-pools, where each sub-pool can be independently configured with different formats (DL, UL, or flexible). This segmentation allows specific sub-pools to be designated for uplink transmission, thereby increasing uplink transmission opportunities without disrupting the overall TDD structure. The segmentation enables targeted optimization of uplink resources while maintaining simplified scheduling in other sub-pools.
Solution Approach 2:
The patent introduces dynamic re-configuration capability that allows transmission resource segments to switch between initial formats (DL/UL/flexible) and enhanced flexible formats based on traffic demands. This dynamic adjustment enables the system to adaptively increase uplink transmission opportunities when needed, reducing latency for uplink-intensive applications while maintaining the ability to revert to traditional scheduling when traffic patterns are stable.
2Use of energy by moving object
If traditional TDD resource allocation is used, then system complexity is reduced, but transmission energy efficiency deteriorates for latency-sensitive applications
Solution Approach 1:
The patent applies local quality by configuring different formats (DL, UL, flexible) for different sub-pools within the transmission resource pool. This allows energy-efficient uplink transmission to be localized in specific sub-pools dedicated to uplink traffic, while other sub-pools maintain traditional configurations. The enhanced flexible format can be applied locally to specific transmission resource segments rather than globally, optimizing energy efficiency for latency-sensitive applications without requiring complete system reconfiguration.
Solution Approach 2:
The patent changes the format parameter of transmission resource segments from static initial formats to dynamic enhanced flexible formats. This parameter change enables the system to adapt transmission directions and resource allocations based on real-time traffic demands, improving energy efficiency for applications with varying latency requirements. The parameter changes are applied selectively to specific sub-pools and segments rather than uniformly across the entire system, managing complexity through targeted optimization.
3Adaptability or versatility
If flexible formats are enhanced for dynamic re-configuration, then adaptability to varying traffic demands improves, but device complexity increases
Solution Approach 1:
The patent divides the transmission resource pool into multiple sub-pools, each capable of being configured with different formats. This segmentation allows enhanced flexible formats to be applied selectively to specific sub-pools based on traffic demands, rather than requiring all sub-pools to support complex re-configuration. The segmentation isolates complexity to only those sub-pools that require dynamic adaptation, while other sub-pools can maintain simpler static configurations.
Solution Approach 2:
The patent implements partial re-configuration by allowing only certain transmission resource segments within sub-pools to be re-configured from initial formats to enhanced flexible formats, rather than requiring complete re-configuration of the entire resource pool. This partial action approach provides sufficient adaptability for varying traffic demands while limiting the scope of complexity to only the necessary segments, reducing overall device complexity compared to full re-configuration schemes.
Data Source
AI summary
This disclosure relates generally to a method, device, and system for signal and data transmission in a wireless network. One method performed by a device performed by a wireless device is disclosed. The method may include: determining an initial format for each time block of a transmission resource pool comprising at least one sub-pool including a first sub-pool, and determining, that a transmission resource segment in the first sub-pool is re-configured from an initial format to an enhanced flexible format, wherein the initial format of the transmission resource segment is same as the initial format of the first sub-pool, and an initial transmission direction of the transmission resource segment is same as an initial transmission direction of the first sub-pool.