Channel Sounding

Is Bluetooth Channel Sounding Enough for Positioning in the Market?

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Is Bluetooth Channel Sounding Enough for Positioning in the Market?

This article is sourced from: Intelligent Communication Positioning Circle The “2026 China High-Precision Positioning Technology Industry White Paper” is currently in the research phase, and the companies surveyed so far include: Changsha Chixin Semiconductor Technology Co., Ltd. Shenzhen Newray Semiconductor Technology Co., Ltd. Jiangsu Zhuosheng Microelectronics Co., Ltd. Shenzhen Jieyang Microelectronics Co., Ltd. Shenzhen Huayun … Read more

BLE Channel Sounding (Part II)

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BLE Channel Sounding (Part II)

In the previous article, we mentioned that there are mainly two methods for distance measurement in CS: RTT (Round-Trip Time) and PBR (Phase-Based Ranging).Overview of BLE Channel SoundingThis article will briefly analyze distance measurement based on RTT. As shown in the previous figure, the steps for a single RTT measurement are as follows:RTT=2*TOF=(ToAr-ToDi)+(ToAi-ToDr)distance = c … Read more

Eight Advantages of Bluetooth™ Channel Sounding and New Dual-Antenna Development Kit

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Eight Advantages of Bluetooth™ Channel Sounding and New Dual-Antenna Development Kit

Bluetooth™ channel sounding (Bluetooth® Channel Sounding） provides strong support for numerous use cases that rely on high-precision and secure device positioning. Whether it is personal item tracking, digital keys, or various scenarios that benefit from accurately obtaining the distance between two different Bluetooth™ devices, this technology makes it possible. Given the vast Bluetooth device ecosystem … Read more

Solution | KW47 BLE Single Point CS + Multi-Node Listening Digital Key Solution for Automobiles

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Solution | KW47 BLE Single Point CS + Multi-Node Listening Digital Key Solution for Automobiles

This article provides an overview Legong Technology and Qiuyuan Electronics have developed a new Bluetooth digital key solution for automobiles based on the Bluetooth 6.0 certified KW47 chip, which implements single-point Channel Sounding (CS) and multi-node listening. This solution offers high-precision Channel Sounding ranging capabilities, assisting automotive manufacturers in distance measurement and area positioning, injecting … Read more

Bluetooth Innovations Expand Wireless Connectivity Boundaries, High-Efficiency New Products Propel the Smart Transition of Bluetooth Devices

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Bluetooth Innovations Expand Wireless Connectivity Boundaries, High-Efficiency New Products Propel the Smart Transition of Bluetooth Devices

IoT Think Tank Original As the global industries accelerate their smart transformation, wireless connectivity technologies are undergoing a profound intelligent revolution. The deep integration of artificial intelligence technologies with various connectivity technologies not only enhances the efficiency of device interconnectivity but also gives rise to entirely new application scenarios and functionalities. Among various wireless connectivity … Read more

How to Distinguish Pitch, Loudness, and Timbre from Waveforms

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How to Distinguish Pitch, Loudness, and Timbre from Waveforms

1. The Three Elements of Musical Sound 1. Pitch refers to the highness or lowness of a sound, determined by frequency. In physics, the speed of an object’s vibration is described by the frequency, which is the number of vibrations per second. A faster vibration results in a higher frequency and a higher pitch; a … Read more

Bluetooth Technology Alliance: Deepening Presence in China, Expanding 5-6GHz Band and Innovations like HDT

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Bluetooth Technology Alliance: Deepening Presence in China, Expanding 5-6GHz Band and Innovations like HDT

According to a report by Electronic Enthusiasts (Author: Mo Tingting), after a five-year hiatus, the Bluetooth Asia Conference makes a grand return. From May 22 to 23, 2025, the 2025 Bluetooth Asia Conference was held in Shenzhen. “It has been five years since we held such a grand event, and I sincerely hope that we … Read more

Bluetooth Channel Sounding Opens a New Era of Distance Sensing – Exploring Development Kit Solutions

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Bluetooth Channel Sounding Opens a New Era of Distance Sensing - Exploring Development Kit Solutions

Bluetooth® Channel Sounding can meet a wide range of precise distance measurement needs while offering advantages of easy deployment and low cost. Its centimeter-level high-precision distance measurement capability is expected to bring innovative features to devices supporting low-power Bluetooth, including Human-interface devices (HID), proximity interactions, automation, and Human Machine Interface (HMI). Anti-Loss Solutions Currently, an … Read more

New Bluetooth Channel Sounding Development Kit – Supports Dual Antennas, Significantly Improves Target Accuracy

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New Bluetooth Channel Sounding Development Kit - Supports Dual Antennas, Significantly Improves Target Accuracy

In Bluetooth channel sounding (Channel Sounding) applications, the design scheme should always consider adding a second antenna. As shown in Silicon Labs‘ low-power Bluetooth (Bluetooth LE) channel sounding antenna guideline document – AN1493: Antenna Design Guidelines for BLE Channel Sounding, even in cases where size is constrained, adding a second antenna is feasible and helps … Read more

Weekly Insights: What Upgrades Does Bluetooth 6.0 Bring and What Are Its Benefits?

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Weekly Insights: What Upgrades Does Bluetooth 6.0 Bring and What Are Its Benefits?

I only recently learned that Bluetooth 6.0 has been released for over six months. However, this technology is like taking medicine; it takes time for it to be industrialized and for its benefits to be realized. Let’s first review the major upgrades of Bluetooth over the years: Bluetooth Major Version Release Date Core Upgrade Points … Read more