Millimeter Wave Frame Structure for Device Ranging
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Solution Overview
Problem
Existing communication systems lack support for terminal devices to determine distance between themselves and other devices through ranging, especially in frequency bands below 6 GHz where spectrum resources are limited.
Innovation Solution
A positioning and ranging method is introduced, where a terminal device is configured with a frame structure having a first time unit, operating in a frequency band not less than 6 GHz, allowing for positioning and ranging using time-frequency resources, thereby enabling distance measurement between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If terminal devices operate in frequency bands below 6 GHz, then communication compatibility is maintained, but spectrum resources are limited and ranging capability is insufficient
Solution Approach 1:
The patent transitions from traditional sub-6 GHz frequency operations to millimeter wave frequency bands (24 GHz, 38 GHz, 60 GHz), representing a dimensional change in the frequency spectrum. This enables access to abundant unused spectrum resources in higher frequency bands, resolving the contradiction between limited spectrum resources and ranging capability.
Solution Approach 2:
The patent changes the operating frequency parameter from below 6 GHz to millimeter wave bands (24-60 GHz). This parameter change unlocks abundant spectrum resources and enables advanced ranging capabilities through dedicated time units configured for positioning and ranging operations.
2Measurement precision
If dedicated time units for positioning are introduced in millimeter wave bands, then ranging precision is improved, but frame structure complexity increases
Solution Approach 1:
The patent segments the frame structure by introducing dedicated first time units specifically configured for positioning and ranging operations, separate from other communication functions. This segmentation enables precise ranging measurements while maintaining organized and manageable frame structure through clear functional separation.
Solution Approach 2:
The millimeter wave frame structure is designed to support multiple functions including data transmission, positioning, and ranging through different time units. The first time units are universally applicable across various millimeter wave frequency bands (24 GHz, 38 GHz, 60 GHz), providing flexible multi-functional operation.
Data Source
AI summary
A positioning and ranging method, and including: sending a configuration of a frame structure to a terminal device, the frame structure including a first time unit, the first time unit being used for positioning and/or ranging, and a working frequency of the frame structure being in a frequency band not less than 6 GHz.