UWB Ranging Round Scheduling for Precise and Fast Communication
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Solution Overview
Problem
There is a need for efficient methods and devices to transmit and receive scheduling information based on a block/round structure in ultra-wideband (UWB) wireless networks, particularly for low-rate (LR) wireless networks like WPAN, to support precise ranging and high-speed data communication.
Innovation Solution
A method and device for generating and transmitting scheduling information elements (IEs) in a block structure based on ranging rounds, and for receiving and identifying assigned ranging rounds in UWB wireless networks, including information on the type and scheduling list for each device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If scheduling information is transmitted using traditional methods in UWB wireless networks, then the system can support basic communication, but it cannot efficiently support precise ranging and high-speed data communication simultaneously
Solution Approach 1:
The patent segments the scheduling information into distinct elements: Scheduling IE for block structure allocation and Ranging IE for ranging-specific parameters. This segmentation allows simultaneous optimization for both high-speed data communication (through efficient block allocation) and precise ranging (through dedicated ranging parameters), resolving the contradiction between communication speed and ranging precision
2Adaptability or versatility
If the system supports both low-rate wireless network compatibility and ultra-wideband high-speed communication, then versatility is improved, but system complexity increases
Solution Approach 1:
The patent implements a universal scheduling framework where the Scheduling IE can serve dual purposes: allocating resources for both traditional low-rate WPAN communication and high-speed UWB data transmission. The block structure methodology provides a unified resource allocation mechanism that adapts to different network modes, maintaining versatility while avoiding the need for separate complex scheduling systems for each communication type
3Measurement precision
If detailed scheduling information is provided for each device in ranging rounds, then ranging precision is improved, but information overhead increases
Solution Approach 1:
The patent applies local quality by providing detailed ranging parameters only to devices that require precise ranging functionality, while other devices can operate with simpler scheduling information. The Scheduling IE includes device-specific fields that are populated based on individual device requirements, allowing the system to optimize ranging precision for specific devices without unnecessarily increasing information overhead for all devices in the network
Data Source
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AI summary
Disclosed are a method and apparatus for the transmission or reception of scheduling information based on a block/round structure in an ultra-wideband (UWB) wireless network system. A method performed by a first device in an ultra-wideband (UWB) wireless network system according to an embodiment of the present disclosure may comprise: a step in which the first device generates a scheduling information element (IE) for scheduling in a block structure based on one or more ranging rounds; and a step of transmitting a frame including the scheduling IE to one or more second devices. Here, the scheduling IE may include: information indicating the type of scheduling based on a ranging round unit; and scheduling list information related to scheduling based on a ranging round unit for each device.