Compressed PSDU Layout for Low-Overhead UWB Ranging Control
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in data transmission due to high overhead in PSDU formats for NB-assisted multi-millisecond UWB control signals, particularly in determining device distance, which limits payload capacity and increases energy consumption.
Innovation Solution
A compressed PSDU format is introduced, optimizing the structure by removing unnecessary elements and using a 1 millisecond timing grid for both NB and UWB packets, reducing overhead and enhancing payload capacity through a simplified format for poll, response, and report packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard PSDU format is used for NBA-MMS-UWB control signals, then the transmission includes all necessary control information, but the overhead is high and payload capacity is limited
Solution Approach 1:
The patent extracts and removes unnecessary elements from the standard PSDU format, keeping only the essential control information fields required for NBA-MMS-UWB operations. This extraction process reduces overhead while maintaining the completeness of critical control signals.
Solution Approach 2:
The patent changes the structural parameters of the PSDU format by reorganizing field arrangements, optimizing bit allocations, and adjusting timing parameters to reduce overall overhead while preserving all necessary control functionality.
2Reliability
If a standard PSDU format is used for NBA-MMS-UWB control signals, then all control information is transmitted, but the transmission duration is increased
Solution Approach 1:
By extracting and removing redundant control information fields from the standard PSDU format, the patent reduces the total number of bits that need to be transmitted, thereby shortening the transmission duration while maintaining essential control functionality.
Solution Approach 2:
The patent optimizes timing parameters and field durations within the PSDU format, adjusting the temporal allocation of each control field to minimize total transmission time while ensuring all necessary control signals are完整地 transmitted.
3Reliability
If a standard PSDU format is used for NBA-MMS-UWB control signals, then control functionality is maintained, but energy consumption is increased
Solution Approach 1:
By extracting and eliminating unnecessary control fields and overhead elements from the PSDU format, the patent reduces the total data volume that requires processing and transmission, thereby lowering the energy consumption of wireless communication devices while maintaining essential control functionality.
Solution Approach 2:
The patent optimizes energy-related parameters by reducing transmission power requirements through shorter packet durations, minimizing processing energy through simplified field structures, and optimizing radio resource allocation efficiency.
4Reliability
If a standard PSDU format is used for NBA-MMS-UWB control signals, then comprehensive control information is provided, but payload capacity is reduced
Solution Approach 1:
The patent extracts and removes redundant control information fields from the standard PSDU format, freeing up payload capacity for actual data transmission while maintaining all essential control functionality through optimized essential fields.
Solution Approach 2:
The patent reallocates bit parameters and field sizes within the PSDU structure, reducing the overhead portion to maximize the payload portion, thereby increasing overall payload capacity while preserving complete control information in the optimized format.
Data Source
AI summary
A wireless device may transmit ranging transmissions using a compressed PSDU. The compressed PSDU may be configured to support poll packets, response packets, and report packets. The compressed PSDU may comprise an identifier (ID) field, an address field, ID specific data, and a cyclic redundancy check (CRC) field. Further, the wireless device may use an optimized header IE for broadcast.