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Shenzhen Ofeixin Technology Co., Ltd
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SHENZHEN OFEIXIN TECHNOLOGY Co.,Ltd. founded in 2014, with office located in Shenzhen China, and factory located at Liuyang Town ChangSha City, HuNan Province,covering an area of 39,000㎡,is one of the earliest and most proficient manufacturing enterprises which integrate R&D, production and sales as a whole in the field of high-speed wireless network.SHENZHEN OFEIXIN TECHNOLOGY Co.,Ltd. is dedicated to providing customers with perfect IOT connection solutions.With many years of experience that ...
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WIFI HaLow: An Integral Component of Smart Homes
As the number of smart home devices continues to grow, we are witnessing the limitations of traditional wireless connectivity technologies in accommodating the expanding network of home automation devices. The increasing device count leads to congestion in home networks, and operating on the same popular frequency bands can result in signal interference and performance issues.   Wireless Interference: One of the challenges faced by smart homes is wireless interference. The proliferation of wireless devices in homes, coupled with the growing number of different wireless standards operating in corresponding frequency bands, increases interference between devices. Users may experience frustration due to interference when using these devices. This is where the advantages of WIFI HaLow come into play. In comparison to traditional wireless standards, WIFI HaLow operates at lower frequencies and can deploy over 26 non-overlapping channels. It exhibits better resistance to interference in crowded WIFI environments with numerous sources of interference, such as those found in smart homes.   High Coverage: We have all encountered areas in our homes with weak or no WIFI signal. WIFI HaLow addresses this issue with its powerful signal penetration and long-range capabilities. Unlike traditional IoT devices that may experience poor or unavailable wireless signals even within the access point's range, ordinary WIFI access points may struggle to connect to outdoor smart devices like cameras, weather sensors, and sprinkler systems. WIFI HaLow, however, does not face such limitations. Operating in the Sub-1 GHz range, it can reach the boundaries of a home and penetrate through objects that standard WIFI cannot reach. With its longer wavelength and lower transmission frequency compared to common home wireless standards, WIFI HaLow signals can better pass through obstacles and walls, providing greater flexibility in positioning smart home devices without the need for complex mesh networks or multiple access points.   Security: WIFI HaLow adheres to the same security standards as conventional WIFI, such as WPA3. This helps maintain the integrity and security of home networks according to the same standards as your current WIFI network settings. WPA3 is mandatory for WIFI HaLow certified devices, ensuring robust authentication, enhanced encryption for highly sensitive data, and the resilience of the network. With the adoption of WIFI HaLow, legacy devices using older security protocols are no longer a potential vulnerability in the network.   Low Power Consumption: Existing smart homes often rely on power sources, especially for household appliances abroad. Effectively reducing power consumption to meet national device energy consumption standards becomes crucial. Moreover, devices powered by internal batteries impose even stricter power requirements, posing further challenges. WIFI HaLow, designed specifically for IoT devices, provides an effective solution by lowering power consumption and extending battery life. In comparison to existing WIFI technologies, HaLow addresses the shortcomings of high power consumption and short transmission distances, making it a wireless standard suitable for low-power micro-data transmissions, particularly showcasing significant advantages in the smart home domain. While communication protocols like Zigbee, BLE, and Enocean also boast low power consumption characteristics, WIFI HaLow's uniqueness lies in combining existing WIFI technology with low-power design. This fusion allows WIFI HaLow to comprehensively meet the requirements of various application scenarios for low power and long battery life in smart home devices.   In conclusion, WIFI HaLow, as a crucial component of the smart home sector, brings new hope to overcome the limitations of traditional wireless connectivity technologies. With the rapid growth of smart home devices, WIFI HaLow, with its low power consumption, interference resistance, powerful signal penetration, and security standards aligned with WPA3, provides support for the sustainable development of smart homes. It not only excels in congested WIFI environments but also eliminates dead zones, enabling seamless connectivity for smart home devices, offering users a more intelligent, convenient, and secure home experience.   If you would like to learn more about WIFI HaLow, please visit our official website at QOGRISYS and feel free to contact our team of experts. Let's explore innovative ways to advance smart home technology together. We look forward to collaborating with you to drive the development of intelligent, convenient, and secure homes in the future.
QOGRISYS WIFI HaLow Module: 4108E-S
In the past decade, WIFI technology has bridged networks for billions of smart interconnected devices in homes and businesses, facilitating the rapid exchange of information. However, current WIFI standards face challenges, including limitations in protocol range and overall functionality. These challenges make communication over longer distances difficult, hindering the formation of a truly interconnected ecosystem for smart devices. To meet the needs of low-power IoT clients and accelerate innovation in IoT applications, WIFI HaLow technology has emerged based on the IEEE 802.11ah standard. In comparison to traditional WIFI, WIFI HaLow can connect up to 8,192 IoT devices over longer distances and with lower power consumption through a single wireless access point (AP). The introduction of this technology is expected to break the limitations of communication distance, creating broader possibilities for the interconnection of smart devices.   QOGRISYS Technology's WIFI HaLow module, the 4108E-S, powered by the Morse Micro MM6108 chipset, represents a significant innovation in the wireless communication field. The introduction of this module will provide a more powerful and efficient connectivity solution for IoT applications. The module caters to unique requirements in various application scenarios, including smart cities, access control systems, smart agriculture, smart retail, and smart homes, offering a stable, reliable, and secure connection service for a broader range of indoor and outdoor IoT applications. Key features of the WIFI HaLow module 4108E-S include: Smaller Size: The 4108E-S has a compact size of 13.0 x 13.0 x 2.1mm, meeting the demand for small modules in end-user products and consequently reducing the volume and deployment costs of customer products. Rich Peripheral Interfaces: The 4108E-S supports SDIO 2.0 interface and SPI mode operation, along with various peripheral interfaces such as a general I2C interface, UART interface, and GPIO interface. This provides users with greater flexibility, enabling easy integration into different applications.   Extended Coverage Range: Operating in the 902 – 928MHz frequency band, the module demonstrates exceptional coverage performance with strong penetration capabilities. It operates in a Sub-1GHz frequency band, reducing interference and achieving widespread coverage over long distances, exceeding the range of traditional WIFI. Lower Power Consumption: Supporting selectable 1/2/4/8MHz channel bandwidths, the module accommodates data throughput ranging from 3.333 Mbps to 32.5 Mbps. This allows devices to operate for extended periods in low-power modes, minimizing the need for frequent charging or battery replacement. Enhanced Security: The 4108E-S module provides multi-layered security features, including encryption (AES), hash algorithms (SHA-1/SHA-2), Protected Management Frames (PMF), and Opportunistic Wireless Encryption (OWE). These features ensure the confidentiality and integrity of wireless communication, making the 4108E-S module a reliable wireless communication solution suitable for various scenarios, including those with high-security requirements.   Currently, QOGRISYS Technology's WIFI HaLow module, the 4108E-S, has been launched, primarily targeting the North American and South American markets (902-928MHz). As the Internet of Things (IoT) continues to mature and diversify, QOGRISYS Technology is committed to continuous innovation, increased research and development efforts, enhanced product performance, and gradually propelling the IoT into a new era characterized by scalability, security, low power consumption, and remote capabilities.        
WIFI7: Embracing a New Era of Wireless Connectivity
On January 8, 2024, the Wi-Fi Alliance announced the Wi-Fi CERTIFIED 7 certification, introducing powerful new features aimed at enhancing Wi-Fi performance and improving connectivity in various environments. This certification marks the official beginning of the WIFI7 era. On January 10, Bingo Corporation announced the launch of the world's first WIFI7 public network at the CES exhibition, marking the official transition of Wi-Fi 7 technology into a new phase of practical application. Against the backdrop of this technological revolution, let's explore the differences between WIFI7 technology and previous Wi-Fi technologies to gain a more comprehensive understanding of this new era in wireless network technology and prepare for the arrival of the WIFI7 era.   In the previous article, we provided a detailed introduction to the Multi-AP Coordination technology in WIFI7, and those interested can click the link to learn more: https://www.wifibtmodule.com/news/the-era-of-wifi-7-has-officially-arrived-165518.html.In this article, we will discuss the QAM modulation and 320MHz bandwidth in WIFI7 technology.     Orthogonal Amplitude Modulation (QAM) is a core technology in WIFI7, representing a digital modulation technique that maps digital signals onto multiple carriers with varying amplitudes and phases to achieve high-speed data transmission. In QAM, we often encounter a numerical value, which refers to the Modulation Symbol. The modulation symbol serves as the fundamental unit for carrying data in a specific modulation scheme. It signifies a particular signal state, and the information it contains can be transmitted and received through the modulation and demodulation process, typically represented by a set of discrete signal states or symbol points. Each modulation symbol represents a certain quantity of bits, or bits, depending on the modulation scheme and modulation order employed.     QAM modulation represents different modulation symbols by varying the amplitude and phase of the signal in two dimensions. In QAM, the number of modulation symbols is related to the modulation order. For instance, 16-QAM signifies 16 different modulation symbols, 64-QAM indicates 64 different modulation symbols, and the progression continues with WIFI4 using 64-QAM, WIFI5 employing 256-QAM, WIFI6 incorporating 1024-QAM, and WIFI7 introducing 4096-QAM modulation. Each modulation symbol can carry a specific amount of bit information, and with higher modulation orders, each symbol carries more bits, resulting in higher data transmission rates. Taking the example of the WIFI7 card O7851PM from Shenzhen QOGRISYS Technology Co., Ltd., which integrates 4096-QAM modulation technology, each modulation symbol can carry 12 bits. Compared to WIFI6 with 10 bits per symbol, this means a 20% speed improvement under the same encoding conditions.     Maximum 320MHz bandwidth   The bandwidth of WIFI is akin to the width of a road, where a wider bandwidth corresponds to a broader road, allowing for faster transmission of information.       In the early stages of WIFI and other wireless technologies like Bluetooth, the 2.4 GHz frequency band has been extensively shared, leading to significant congestion in that range. While the 5GHz frequency band offers more bandwidth compared to 2.4GHz, translating to faster speeds and greater capacity, it also faces congestion issues.   To achieve the goal of maximizing throughput, WIFI7 will continue to introduce the 6GHz frequency band and incorporate new bandwidth modes, including continuous 240MHz, non-continuous 160+80MHz, continuous 320MHz, and non-continuous 160+160MHz, providing users with a faster and more efficient data transmission experience.     Taking the O7851PM card module from QOGRISYS as an example, the O7851PM supports DBS and operates on both 2.4 GHz + 5 GHz and 2.4 GHz + 6 GHz frequency bands. Additionally, it also supports HBS, offering a maximum bandwidth of 320MHz in the 5GHz + 6GHz frequency bands or the standalone 6GHz frequency band. The maximum data rate reaches up to 5.8Gbps, providing users with an enhanced connectivity experience.   In conclusion, with the official release of WIFI7 technology, wireless networks have entered a new era, bringing forth enhanced performance and a more stable connectivity experience. The continuous evolution of QAM modulation technology and the introduction of a maximum 320MHz bandwidth have significantly improved the data transmission rates and efficiency of WIFI7. The modulation upgrades from 1024-QAM to 4096-QAM, along with the introduction of new frequency bands and bandwidth modes, provide users with faster and more efficient wireless connectivity options.     QOGRISYS Technology's O7851PM card module, serving as an exemplar of WIFI7 technology, showcases its robust performance with integrated 4096-QAM modulation technology and support for a maximum 320MHz bandwidth. This not only delivers an enhanced connectivity experience for users but also opens up new possibilities for the future development of wireless communication. With the advent of the WIFI7 era, we can anticipate further innovations and advancements, ensuring that wireless networks can provide more powerful and reliable services in various environments.

2024

01/26

The application of StarFlash in intelligent vehicles
With the rapid development of multiple industries such as smart cars, smart terminals, smart homes, and smart manufacturing, various application fields have posed common requirements for wireless short-range communication technology in terms of low latency, high reliability, and low power consumption. The inherent limitations and technical potential of existing mainstream wireless short-range communication technologies cannot meet the technical requirements of new applications. In response to addressing the industry's technical pain points, the new generation of wireless short-range communication technology, StarFlash, has emerged. Essentially a new generation of wireless short-range communication technology, StarFlash offers six major advantages over traditional wireless short-range communication technologies: low latency, high speed, interference resistance, high reliability, high concurrency, and precise positioning.     The StarFlash technology aligns with the industrial development trends of various application fields, encompassing four typical areas: smart cars, smart homes, smart terminals, and smart manufacturing. This article primarily explains the application of StarFlash technology in the field of smart cars: 1.In-Car Wireless Active Noise Cancellation: By measuring the noise waveform entering the ear and generating sound waves of the same amplitude but opposite phase to neutralize the noise. Compared to wired noise cancellation systems, StarFlash's wireless solution reduces equipment weight and installation costs and is not restricted by wire harness layout. 2.Wireless Car Keys: Enabling keyless entry and one-button start by locating the key to intelligently unlock, lock, and start the car. StarFlash technology enhances the user experience of keyless entry systems and addresses the deficiencies of existing solutions. 3.In-Car Hands-Free Calling and Entertainment Systems: Utilizing in-car microphones to capture voice signals, which are then processed and played through speakers to enable voice communication. Current wireless short-range technologies have limited latency, anti-interference capabilities, and concurrency capabilities. StarFlash technology allows in-car communication terminals to connect with multiple phones simultaneously, enabling multiple phones to use the car's speakers and microphones for calls, reducing overall vehicle cost and weight. 4.Wireless Battery Management System (BMS): Managing and monitoring the power battery, which requires communication support between the master control and multiple slave controls, the entire vehicle, and the charger. Compared to CAN and daisy-chain communication solutions, the wireless BMS based on StarFlash technology simplifies system structure, improves the energy density of the battery pack, and enhances the reliability, accuracy, and safety of cell management. It addresses the reliability issues of long-term use of wire harnesses and connectors, reduces after-sales maintenance, eliminates high-voltage risks, and offers strong scalability with low power consumption.     The widespread application of StarFlash technology is driving transformation in the field of smart cars. StarFlash technology not only enhances the efficiency of in-car wireless active noise cancellation systems, reducing equipment weight and installation costs, but also improves the user experience of wireless car key systems and in-car hands-free calling and entertainment systems, addressing multiple deficiencies of existing solutions. Additionally, in wireless battery management systems, StarFlash technology demonstrates its strong technical advantages and potential by simplifying system structure and enhancing the reliability and safety of battery management.     From the widespread application of StarFlash technology in the field of smart cars, we can see that 2024 will be a breakthrough year for StarFlash technology. To further apply the advantages of StarFlash technology to more scenarios and promote the rapid implementation of the StarFlash industry, OFS has launched three series of StarFlash modules tailored to different application scenarios to meet people's needs in various contexts: 1. 3243/3283 Series: Targeting pass-through applications, these modules integrate WiFi 6 + BT/BLE + SLE and are suitable for routers, black electronics, IPC, dash cams, and other scenarios. 2.3103 Series: For IoT applications, these modules integrate WiFi MCU + BLE/Mesh + SLE and are suitable for white goods, smart home devices, and other scenarios. 3.3102 Series: For IoT SLE scenarios, these modules integrate MCU + BLE + SLE and are suitable for remote controls, microphone game controllers, keyboards and mice, styluses, car keys, and other scenarios. In summary, with its significant advantages of low latency, high speed, interference resistance, high reliability, high concurrency, and precise positioning, StarFlash technology is gradually becoming one of the core technologies in the field of smart cars. With the introduction of OFS's StarFlash modules for different application scenarios, StarFlash technology is expected to be widely applied in more fields, further promoting the rapid development of smart cars and other related industries. Undoubtedly, 2024 will be a breakthrough year for StarFlash technology, and its widespread application and continuous innovation will lead a new wave of technological revolution in the smart car industry.      

2024

05/31

Domestic WiFi digital transmission strives to break into the high-end market
As I pondered over this headline before starting, I couldn't shake off my concerns about whether it aligns with the content. Having worked in the WiFi industry for 10 years, I've been deeply troubled by the development of domestic WiFi chips two years ago. Back then, domestic digital transmission WiFi chips were mostly confined to the low-end market, with little visibility in the high-end market. Here, I'm compiling a summary. If there are any inappropriate parts, let's just overlook them as a joke.   WiFi chips are roughly divided into digital transmission WiFi and IoT WiFi. Apart from smartphones, hardware is primarily utilized in the form of modules.   Domestic IoT WiFi boasts high cost-effectiveness, with significant advantages closely tied to its characteristics. IoT WiFi is characterized by small data and control applications, featuring a built-in RTOS system that facilitates application development. It is primarily used in smart home and control scenarios, with devices like the ESP8266 serving as typical representatives. On the other hand, digital transmission WiFi is characterized by large data transmission, spanning various applications such as audiovisual and big data scenarios, which demand higher throughput, low latency, multiple connections, and stability. Consequently, chip design for digital transmission WiFi modules is more challenging. Today, we will mainly focus on the development of digital transmission WiFi modules.     Two years ago, WiFi technology had advanced to WiFi 6, while domestic digital transmission WiFi chips were mostly single-antenna 2.4GHz, still adhering to the WiFi 4 standard. Without exception, they were unable to break through to higher specifications due to issues like IP licensing restrictions and unassailable patents. At that time, WiFi 5 and WiFi 6 chips primarily came from Taiwanese and Western manufacturers, leading to fierce competition between domestic and Taiwanese companies for low-end WiFi 4 modules, resulting in intense price competition. Meanwhile, Taiwanese and Western companies dominated the mid-to-high-end WiFi 5/6 module market, reaping profits from niche markets. We could only sigh with frustration at our inability to compete on a global scale.     The year 2023 could be considered the dawn of true development for domestic WiFi chips. Domestic WiFi chips leaped directly from WiFi 5 to WiFi 6, ushering in a wave of new domestic WiFi chip players in the market. For instance, AIC's AIC8800 swiftly captured the market with its cost-effectiveness by initially focusing on 2.4GHz WiFi 6, then rapidly iterating to dual-band WiFi 6 to further consolidate its position. Amlogic's WiFi 6, coupled with its SOC, also gained recognition in the market. Meanwhile, WUQI, leveraging its technological edge and benchmarking against leading industry players, led the charge with its flagship WQ9101, guiding domestic WiFi chips towards greater heights with its technological advancement.     In 2024, there will be a plethora of domestically produced WiFi 6 chips and modules entering the market. Due to varying levels of technological prowess among chip manufacturers, there will be a prevalence of low-end offerings, resulting in significant homogeneity and inconsistent chip performance, primarily relying on cost-effectiveness to penetrate the market. Stronger players in the industry will pursue independent research and development, positioning themselves at the forefront of technology compared to their counterparts.     Parameters of domestically produced WiFi 6 chip modules: Low-end domestic WiFi 6 chip module parameters: 1.2.4GHz single frequency 2.b/g/n/ax 3.1T1R single antenna 4.DBAC   Mid-range domestic WiFi 6 chip module parameters: 1.Dual-band 2.4/5.8GHz 2.a/b/g/n/ac/ax 3.1T1R single antenna 4.DBAC   High-end domestic WiFi 6 chip module parameters: 1.Dual-band 2.4/5.8GHz 2.a/b/g/n/ac/ax 3.1T1R single antenna or 2T2R dual antenna 4.DBAC+DBDC Among high-end domestic WiFi 6 chips, the WQ9101 chip demonstrates advanced features compared to similar domestic counterparts. Based on RISC-V design, its main parameters are as follows: 1.Dual-band 2.4/5.8GHz 2.a/b/g/n/ac/ax 3.1T1R single antenna 4.DBAC+DBDC Its DBDC feature (i.e., dual MAC, allowing two APs to work simultaneously on 2.4/5.8GHz, compared to DBAC which supports only one AP) benchmarks against high-end functions of Western counterparts, placing it ahead of domestic counterparts in the Chinese market in terms of WiFi chip technology.     The WQ9101 features two interface designs: USB and SDIO. Its USB module, the O9101UB, has also demonstrated top-notch performance in streaming tests.     The WQ9101, with its support for DBDC and top-notch performance, excels in high-reliability and complex scenarios such as video conferencing, HDMI transmission, projectors, commercial displays, robotics, and industrial control settings. Meanwhile, the WQ9201 goes a step further with the following parameters: 1.Dual-band 2.4/5.8GHz 2.a/b/g/n/ac/ax 3.2T2R dual antennas 4.DBAC (2T2R) or DBDC (1T1R)   Other notable features include: 1.Enhanced power management, with lower current compared to similar products 2.Multiple interfaces including PCIe, SDIO, and USB 3.Reserved RISC-V for differential development, such as power-saving mechanisms for WiFi 4.Compatibility with domestic operating systems This makes it suitable for a wider range of applications including set-top boxes, laptops, tablets, and more. Corresponding modules include O9201UB, O9201SB, and O9201PM.     From the perspective of the development of domestic WiFi chips, low-end chips have already achieved cost-effectiveness comparable to their Taiwanese counterparts, while mid-to-high-end chips can compete head-to-head with Taiwanese counterparts. However, there still exists a gap between top-tier chips such as WiFi 6E and WiFi 7 and their Western counterparts. Nevertheless, with the efforts of domestic WiFi manufacturers, this gap should be narrowing rather than widening. We will witness more applications of domestic WiFi modules in various scenarios.            

2024

04/28