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The difference between WIFI6 and WIFI5 lies in what aspect?

In the digital era, as wireless networks continue to evolve, WIFI technology, one of our primary means of daily connectivity, is also undergoing constant upgrades. Over the past few years, WIFI5 has been the preferred standard for many users, providing us with reliable wireless connections. However, WIFI6 has now emerged, introducing a range of new features and being hailed as "High Efficiency WIFI." Let's delve into the differences between WIFI6 and WIFI5, explore the advantages brought by this new technology, and consider the position of WIFI5 in this technological evolution.   Compared to the currently prevalent WIFI5 technology, WIFI6 demonstrates superior performance in multiple aspects. WIFI6 not only boasts faster speeds, support for more concurrent devices, and lower latency but also operates with greater energy efficiency. It adopts OFDMA technology similar to 5G, combined with 1024-QAM high-order modulation, enabling a maximum support of 160MHz bandwidth and nearly tripling the speed compared to WIFI5. Through intelligent frequency division technology, WIFI6 can accommodate concurrent connections for more devices, increasing the access device capacity by four times. Moreover, the reduction of queuing phenomena is facilitated by multi-device concurrent connections, actively avoiding interference and reducing latency by two-thirds. During terminal device standby, WIFI6 also supports on-demand wake-up functionality, effectively reducing the power consumption of terminal devices by 30%. These advanced features make WIFI6 a significant technological upgrade in the current field of network communication.     Under the WIFI5 standard, communication between devices can be likened to a single-channel transmission, where at any given moment, only one device can communicate with the router. Even if other devices are idle, they cannot transmit data simultaneously. If any device experiences interference, the entire communication channel may be affected, similar to a blockage in the entire communication process. In contrast, under the WIFI6 standard, communication has been improved. Multiple devices can communicate in a more flexible manner simultaneously, forming a more efficient multi-user transmission. Devices can be grouped into teams, and each team can independently transmit data without interfering with each other. If a particular device experiences interference, only the team to which that device belongs will be affected, without impacting the entire communication process. This makes the WIFI6 standard more powerful and reliable in the face of interference.     To enhance the device access capacity of WIFI networks in densely populated scenarios such as exhibition venues and sports stadiums, WIFI6 has introduced a technology known as BSS coloring. In traditional WIFI communication, devices adhere to the "listen before talk" principle, meaning they wait until other signals on the same channel are detected to be finished before initiating communication. However, BSS coloring technology allows devices to assess whether other signals might impact communication through specific markers. If a WIFI6 device reads the marker and determines it as "non-impactful," it will initiate communication directly, thereby reducing wait times and effectively improving the speed and reliability of wireless networks.     This is a significant improvement, but WIFI5 devices do not support this technology. WIFI5 devices do not carry markers in their transmitted signals, so surrounding devices cannot determine from these unmarked signals whether they might affect their own communication. The only solution is to remain silent, leaving time for these older devices that do not support the new technology.     In such a scenario, once WIFI5 devices initiate communication, it may force WIFI6 devices, which could have communicated, to remain silent. This highlights the advantages of adopting WIFI6 in high-density environments, while traditional WIFI5 devices become a limiting factor for overall communication efficiency. In summary, WIFI6, as the new standard for wireless connectivity in the digital era, is favored by many users due to its higher speed, support for more concurrent devices, low latency, and low power consumption.     Shenzhen Ofeixin Technology Co., Ltd fully leverages the advantages of WIFI6 technology and has successfully launched the WIFI6 module O2064PM. This module incorporates Qualcomm's QCA2064 WIFI 6 chip, featuring ultra-high integration and outstanding performance. The O2064PM module is compatible with IEEE802.11a/b/g/n/ac/ax 2x2 MIMO wireless standards, supporting Dual-band simultaneous (DBS) operation in the 2.4GHz and 5.8GHz frequency bands concurrently. It utilizes an M.2 PCIe interface, achieving a maximum data rate of 1800Mbps. After market validation, the O2064 module has been successfully mass-produced and stands out uniquely in the market.     Simultaneously, Ofeixin continues to innovate, keeping pace with the trends of the times, and has successfully developed and launched the WIFI7 module O7851PM. Based on Qualcomm's WCN7851 chip, the O7851PM utilizes an M.2 PCIe interface with dimensions of 22302.7mm, achieving a transmission rate of up to 5.8Gbps. It supports the latest WIFI7 technologies such as 4096QAM, 320MHz bandwidth, Multi-RU mechanism, Multi-LINK multiple link mechanism, CMU-MIMO, and collaborative debugging of multiple APs, making it an ideal choice for advancing towards higher levels of wireless connectivity. For more information about the product specifications of WIFI7              

2024

01/17

Evolution of Wi-Fi Standards

In today's digital age, Wi-Fi has become an indispensable part of our lives, but the evolution of this wireless communication technology has been a fascinating and rich journey. From its humble beginnings with the first steps taken, to the high-speed data transmission of Wi-Fi 7 today, each birth of a Wi-Fi standard has been accompanied by numerous innovations and technological breakthroughs.           802.11: The earliest Wi-Fi standard, released in 1997, supporting a maximum transmission rate of 2Mbps. This standard operated in the 2.4 GHz frequency band and employed Frequency-Shift Keying (FSK) and Quadrature Phase Shift Keying (QPSK) modulation techniques.   802.11a: Released in 1999, it introduced the 5 GHz frequency band for the first time, offering higher transmission rates of up to 54 Mbps. Using Orthogonal Frequency Division Multiplexing (OFDM) technology, it supported up to 8 parallel data streams, opening up new possibilities for high-speed wireless communication at that time.   802.11b: Also released in 1999, with a maximum transmission rate of 11 Mbps, significantly surpassing the performance of 802.11. Although slightly slower than 802.11a, this standard operated in the 2.4 GHz frequency band, providing better penetration and coverage, and adopted more advanced modulation techniques (Complementary Code Keying).   802.11g: Released in 2003 as the successor to 802.11b, it inherited its advantages in the 2.4 GHz frequency band and offered higher transmission rates of up to 54 Mbps. It used the same OFDM technology as 802.11a but with better compatibility. However, due to the same frequency band, it was not compatible with 802.11a.   802.11n (Wi-Fi 4): Released in 2009, it introduced Multiple Input Multiple Output (MIMO) technology, enabling simultaneous transmission of multiple data streams, improving transmission rates and coverage. It operated in both the 2.4 GHz and 5 GHz frequency bands, with a maximum transmission rate of up to 600 Mbps or higher.   Wi-Fi 4 series modules:6188E-UF, O8723UE, 6223A-SRD.          802.11ac (Wi-Fi 5): Released in 2013, primarily operates in the 5 GHz frequency band, introducing more MIMO streams, beamforming technology, and higher modulation techniques, with a maximum transmission rate of up to gigabits per second (Gbps).   Wi-Fi 5 series modules:8121N-UH, 6111E-UC, 6222D-UUC         802.11ax (Wi-Fi 6): Released in 2019, aimed at enhancing network capacity and efficiency. It introduces several improvements such as Orthogonal Frequency Division Multiple Access (OFDMA), Multi-User Multiple Input Multiple Output (MU-MIMO), etc., to accommodate the increasing number of connected devices and high-density environments, providing better support for bandwidth-intensive applications like high-definition video streaming, online gaming, etc.   Wi-Fi 6E/6 series modules:O2066PM, O2066PB,O2064PM         802.11be (Wi-Fi 7): Released in 2024, it represents the next generation Wi-Fi standard, corresponding to the upcoming new revision IEEE 802.11be - Extremely High Throughput (EHT). Building upon Wi-Fi 6, Wi-Fi 7 introduces technologies such as 320MHz bandwidth, 4096-QAM, Multi-RU, multi-link operation, enhanced MU-MIMO, and multi-AP coordination. These advancements enable Wi-Fi 7 to offer higher data transmission rates and lower latency compared to Wi-Fi 6. The theoretical throughput of Wi-Fi 7 is expected to support up to 46Gbps, roughly four times more than Wi-Fi 6.     From the initial 2Mbps to the arrival of Wi-Fi 7 at 46Gbps today, each standard's birth represents an unwavering pursuit of speed, coverage, and connectivity. With the advent of the digital age, Wi-Fi has seamlessly integrated into our lives and work, becoming a bridge connecting the world. And with the introduction of Wi-Fi 7, we look forward to faster, more stable wireless networks bringing us richer experiences and application scenarios, making the future even brighter.

2024

03/28

The era of WIFI 7 has officially arrived

On January 8, 2024, the Wi-Fi Alliance announced the launch of Wi-Fi CERTIFIED 7, marking the official arrival of the WIFI 7 era! This certification introduces a range of powerful new features aimed at enhancing Wi-Fi performance and improving connectivity in various environments. WIFI 7 supports emerging applications such as multi-user AR/VR/XR, immersive 3D training, electronic gaming, hybrid work, industrial IoT, and automotive technologies. It is anticipated that by 2028, Wi-Fi 7 will see the market entry of 2.1 billion devices, with smartphones, PCs, tablets, and access points among the early adopters of Wi-Fi CERTIFIED 7 certification.     Broadcom, CommScope's RUCKUS Networks, Intel, MaxLinear, MediaTek, and Qualcomm, among other companies, have formed the certification testbed and are among the first to receive Wi-Fi CERTIFIED 7 devices. The introduction of this certification will drive widespread adoption of Wi-Fi 7, offering users a faster, more efficient, and reliable wireless network experience.   WIFI 7 introduces a range of cutting-edge features, such as 320MHz bandwidth, 4096-QAM, Multi-RU multi-link operation, enhanced MU-MIMO, and multi-AP collaboration technologies, aiming to provide higher data transfer rates and lower latency.     Among them, Multi-AP Collaboration is a significant innovation in Wi-Fi 7. Within the 802.11 protocol framework, various access points (APs) primarily engage in collaborative activities such as channel optimization selection, AP transmit power adjustment, load balancing, and spatial reuse for efficient resource utilization. However, in practice, the collaboration between APs is relatively limited. To further enhance the efficiency of radio frequency resource utilization in specific areas, Wi-Fi 7 introduces collaborative scheduling among multiple APs. This includes coordination planning in both time and frequency domains for neighboring cells, interference coordination between neighboring cells, and distributed MIMO (Multiple Input Multiple Output), effectively reducing interference between APs and significantly improving the utilization of airborne resources.   The Multi-AP Collaboration scheduling in Wi-Fi 7 encompasses the following aspects:   Coordinated Orthogonal Frequency Division Multiple Access (Co-OFDMA):   By coordinating and allocating subcarrier resources among different APs, multiple APs can simultaneously engage in parallel communication on different subcarriers. This allows for the sharing of spectrum resources among multiple APs, thereby improving spectrum utilization efficiency and network capacity.       Coordinated Spatial Reuse (Co-SR):   Coordinating the transmission and reception time slots of different APs in the spatial domain, allowing different APs to simultaneously transmit data in adjacent areas, reduces interference between different APs, thus improving spatial reuse efficiency, network capacity, and throughput.     Coordinated Beamforming (Co-BF):   Through Coordinated Beamforming, multiple APs collaborate to concentrate signal energy and alter antenna radiation direction, transmitting the wireless signal in a more directional manner to specific user devices. This enhances signal coverage, improves link quality, and increases transmission efficiency.     Coordinated Joint Transmission (Co-JT):   Allowing the combination of data from multiple APs into a more powerful signal, simultaneously transmitting coordinated data to the same user device, improving the reception signal quality, transmission rate, and coverage range of the user device.     Coordinated Time Division Multiple Access (Co-TDMA):   Allowing multiple APs to transmit data in different time slots, through coordinated scheduling and allocation of time resources, avoiding conflicts and interference between APs, reducing transmission latency, providing a more stable and reliable connection, and improving network capacity and spectrum utilization efficiency.   Basic Service Set Coloring Mechanism (BSS Coloring):   By identifying and distinguishing different BSSs, it avoids mutual interference between multiple Wi-Fi routers or APs on the same channel, thereby enhancing the performance and reliability of the Wi-Fi network.     Clear Channel Assessment (CCA):   Dynamic Channel Sensing technology used to detect, perceive, and assess channel activities in the surrounding environment. It adjusts based on real-time channel conditions, aiding APs in selecting relatively idle channels to enhance performance and reduce interference with other Aps.   In the wave of technological innovation in Wi-Fi 7, Shenzhen Ofeixin Tech Co., Ltd.'s O7851PM wireless Wi-Fi 7 card has emerged as a standout performer. As a leading product with Wi-Fi CERTIFIED 7 certification, it is designed with the Qualcomm WCN7851 chip, supporting the M.2 PCIe interface with a transmission rate of up to 5.8Gbps. This card features support for the aforementioned Multi-AP collaboration technology and also boasts ultra-low latency (below 2ms), 4096QAM, 320MHz bandwidth, Multi-RU mechanism, Multi-LINK multi-link mechanism, CMU-MIMO, and other Wi-Fi 7 technologies. With its exceptional performance and innovative design, this Wi-Fi 7 card module is poised to be the pinnacle choice leading the Wi-Fi 7 era, providing users with an outstanding wireless connectivity experience.     This article has introduced the Multi-AP Collaboration technology of WIFI 7. Subsequent content will cover other WIFI 7 technologies. Stay tuned for more updates and the latest information in the wireless industry. Thank you for your attention.    

2024

01/16

O2066PM Wireless WIFI 6E Network Card Throughput Testing in Windows Environment

Starting from 2023, wireless terminal devices, aside from smartphones, have gradually upgraded to WIFI 6/6E. Devices based on 802.11ax technology can further meet user expectations for superior performance and coverage in the new generation Wi-Fi standard. Users typically focus on the throughput of WIFI modules, and upon receiving samples, they often conduct throughput tests on the modules. In a previous discussion, we introduced the throughput testing of the O2066PM WIFI 6E module in a Linux environment. This article will further test its throughput in a Windows environment. WIFI throughput refers to the actual maximum speed supported by WIFI devices (AP/STA) on the uplink and downlink links. It is a type of stress test that closely resembles real-world usage scenarios, especially as products become increasingly wireless, and wired Ethernet port designs gradually fade away, making it particularly important.     一、Hardware Preparation: PC1: Processor: i5-12400 Memory: 16.0 GB Operating System: Windows 11 (Chinese version) Additional Hardware: PCIE to 2.5G Network Card PC2: Processor: i5-1240P Memory: 16GB Operating System: Windows 10 (English version) Additional Hardware: O2066PM WiFi 6E Module Router: NETGEAR-RAX200 by NETGEAR Antenna:Type: Standard Dual-band PCB Antenna     二、Network Topology     三、Routing Configuration, and Connection Status     四、Screen Room Test   Screening room testing is an ideal environment test, primarily aimed at eliminating interference and assessing the module's actual throughput capacity.   Testing software: IxChariot_670   Throughput test data (actual measurement screenshots):   1、TCP UL: 2.4G HE20(287Mbps),TCP DL: 2.4G HE20(287Mbps)     2、TCP UL: 2.4G HE40(574Mbps),TCP DL: 2.4G HE40(574Mbps)     3、TCP UL: 5G HE20(287Mbps),TCP DL: 5G HE20(287Mbps)     4、TCP UL: 5G HE40(574Mbps),TCP DL: 5G HE40(574Mbps)     5、TCP UL: 5G HE80(1200Mbps),TCP DL: 5G HE80(1200Mbps)     6、TCP UL: 5G HE160(2402Mbps),TCP DL: 5G HE160(2402Mbps)   7、Summarized actual throughput test data:     五、Actual testing in office environment   The actual testing in office environment aims to assess the module's resistance to interference and throughput performance in real-world conditions. The measurements were taken at a distance of 4 meters, with a multitude of active routers, creating a complex testing environment.       六、Summary   1.For high-throughput WIFI module testing, it is necessary to enable multi-threaded testing to demonstrate the module's actual throughput capability. 2.Due to the extreme testing conditions, running TX/RX simultaneously results in significant module heat generation. Therefore, a fan was used throughout the entire process to cool the module. When designing with this module in high-throughput environments (considering mainly TX in AP mode), attention should be paid to heat dissipation issues. 3.Under 2.4G HE40 mode, the throughput rates reached 419.8Mbps (TX) and 447.1Mbps (RX). This indicates that even in the crowded 2.4GHz frequency band, the network card can still provide considerable throughput, making it an ideal choice for high-density user environments. 4.In 5G HE160 mode, the TX and RX throughput rates further increased to an impressive 1678.5Mbps and 1860.3Mbps, respectively, showcasing the outstanding performance of O2066PM in the 5GHz frequency band, supporting higher speeds and larger bandwidth. 5.In actual office scenarios, the O2066PM throughput rate decreased by approximately 700Mbps compared to the shielded room, reaching around 1Gbps, demonstrating good stability.   In summary, the O2066PM, designed based on QCA2066, demonstrates outstanding throughput in both HE40 and HE160 modes. The network card is capable of operating in a wide temperature range from -30 to 85°C, making it well-suited to meet diverse network performance requirements in various application scenarios.      

2024

01/15

The application of WiFi 7

  With the continuous maturation and popularization of WiFi 7 technology (for those who are not familiar with WiFi 7 technology, you can click the link https://mp.csdn.net/mp_blog/creation/editor/135151262 to read an article), we are ushering in a new era of digital connectivity. As the next generation wireless network standard, WiFi 7 will greatly change the development and application methods across various industries. In particular, areas such as AR/VR, Industrial Internet, video conferencing, and gaming/cloud gaming will experience unprecedented opportunities and transformations. This article will explore the application prospects and impact of WiFi 7 in these areas, demonstrating its enormous potential and influence on human society.     AR/VR:   The introduction of WiFi 7 will greatly drive the development of VR and AR technologies, creating more realistic and seamless virtual experiences for users. The high-speed transmission and low latency of WiFi 7 will effectively reduce any form of lag, further enhancing user immersion in virtual environments. In such a network environment, real-time interaction between users will become more natural, and the response speed of gestures and motion sensing will also be faster. Additionally, WiFi 7's support for multiple users will promote the realization of large-scale multi-user VR/AR experiences, such as virtual meetings and exhibitions. With the continuous advancement of technology, we believe that VR/AR applications will expand from the entertainment sector to broader fields such as education, training, and real-time collaboration, bringing people new experiences and application scenarios.     Industrial Internet:   The traditional data transmission of industrial Internet relies on wired networks, but now the emergence of WIFI 7 provides strong support for the development of wireless industrial Internet. The low latency and high capacity of WIFI 7 will provide new possibilities for real-time monitoring and control. Through WIFI 7, industrial equipment can transmit data more quickly, thereby achieving smarter and more efficient production processes. Stable communication between devices and sensors will also greatly improve the reliability of industrial automation systems, reducing the risk of production interruptions, and making the management and maintenance of industrial equipment more convenient.     Video conference:   The advent of WIFI 7 will revolutionize the field of video conferencing, offering not only high-definition video conferencing experiences due to its high-speed transmission and extremely low latency but also unprecedented smoothness and clarity for users. Additionally, multi-user support and larger network capacity mean that not only large teams but even entire enterprises can participate in meetings simultaneously without worrying about loss of connection quality. With the application of WIFI 7, meeting participants will be able to engage in real-time interaction in ways never seen before, whether through text, voice, or video communication, all of which will be smoother and more efficient.     Gaming/Cloud Gaming:   WIFI 7 will also play a crucial role in the gaming industry. Cloud gaming services will benefit from its high-speed transmission and low latency, providing players with superior gaming experiences on cloud platforms. Multiplayer online gaming will usher in a new era, supporting more players to connect and interact simultaneously, significantly enhancing the experience of competitive gaming, enabling players to respond more accurately and quickly to dynamic situations in the game.   In summary, WIFI 7's application prospects are broad, and it will have far-reaching effects in multiple domains. From more efficient video conferencing to more immersive AR/VR experiences, and to smarter industrial Internet and higher-quality cloud gaming services, WIFI 7 will bring more convenience and possibilities to human society. With the continuous advancement of technology and the expansion of application scenarios, we believe WIFI 7 will undoubtedly become a cornerstone of the future digital society, promoting humanity towards a more intelligent and convenient future.     In the digital age, Shenzhen Ofeixin Technology Co., Ltd. dares to innovate independently and keeps pace with WIFI 7's progress, continuously developing more advanced technological products. Among them, the latest WIFI 7 wireless card module, O7851PM, integrates the cutting-edge WIFI 7 technology internally, providing users with faster and more reliable wireless connections. This innovation is believed to further drive the application and popularization of WIFI 7 technology in various sectors of society, delivering superior wireless connectivity experiences to users worldwide.  

2024

03/18

The Difference Between StarFlash and Bluetooth

Background   On November 4, 2022, Huawei's newly established StarFlash Alliance, which has been in existence for nearly two years, unveiled its own communication standard—StarFlash Wireless Short-Range Communication 1.0, leading a new trend in the wireless communication field. This standard includes two modes: basic access and low-power access, providing devices with flexible and diverse connection methods. The flexible channel design allows StarFlash to operate in extremely low-power modes according to the actual needs of the device, improving the battery life of small wireless devices or reducing their size.   On August 4, 2023, Huawei shook the HDC conference by unveiling a new generation of short-range wireless connectivity technology: StarFlash NearLink. The birth of this technology stems from endless exploration and innovation in the era of ubiquitous connectivity. StarFlash NearLink not only redefines short-range wireless communication but also brings personalized and diversified connectivity experiences to users. Similar to traditional Bluetooth technology, but completely revolutionizing in its implementation, it has driven a new revolution in wireless communication with its ultimate innovation and user experience.   So what are the advantages and disadvantages of the emerging StarFlash technology compared to traditional Bluetooth technology?   1.Transmission speed:   StarFlash: StarFlash offers a transmission speed of up to 900Mbps, significantly surpassing the transmission speed of traditional Bluetooth. For scenarios requiring high-speed transmission of large amounts of data, such as 4K or 8K video streaming, and large-scale gaming, StarFlash holds a clear advantage.   Bluetooth: Bluetooth has a transmission speed of up to 24Mbps, although far behind StarFlash, it is sufficient to meet most daily life needs, such as music playback, phone calls, etc.   2.Coverage range:   StarFlash: StarFlash has a coverage range of approximately 600 meters, twice that of Bluetooth. This means that within the transmission range of StarFlash, users can move more freely without worrying about signal interruptions or connection failures. Such extended coverage range gives StarFlash an advantage in many scenarios, such as outdoor sports, large-scale event venues, or vast public areas. This wide coverage range provides users with a broader communication and connection space, allowing them to enjoy the convenience and fun brought by various wireless technologies more conveniently.   Bluetooth: The coverage range of Bluetooth is between 20-300 meters outdoors and approximately 10 meters indoors. Although smaller than StarFlash, Bluetooth technology has demonstrated extremely high stability and reliability in practical applications.   3.Device compatibility:   StarFlash: As an emerging wireless technology, the number of devices currently supporting StarFlash is relatively limited. Even smartphones or computers compatible with StarFlash require upgrading to the latest operating system to function properly.   Bluetooth: Bluetooth technology has been developed for many years, and almost all smartphones, computers, and tablets support Bluetooth. Additionally, most peripherals such as headphones, speakers, mice, and keyboards available in the market also support Bluetooth.   4.Latency and Stability:   StarFlash: StarFlash has very low latency, achieving a minimum of 20 microseconds, marking the first time human wireless connectivity has entered the microsecond level. It performs excellently in scenarios such as video calls and gaming. Additionally, StarFlash also features low power consumption, allowing for extended usage.   Bluetooth: Bluetooth has a minimum latency of around 10 to 15 milliseconds, higher than StarFlash. However, in practical usage, Bluetooth demonstrates better stability. For example, in indoor environments, even with walls or other obstacles, Bluetooth connections do not experience significant fluctuations.   5.Security:   StarFlash: StarFlash utilizes the latest security protocols and encryption technologies to effectively safeguard the security of transmitted data. Additionally, StarFlash supports connections with multiple devices, enabling users to seamlessly switch between devices.   Bluetooth: Bluetooth also employs various security measures to protect data transmission, such as AES encryption and authentication mechanisms. However, compared to StarFlash, Bluetooth's security may be slightly inferior.   6.Cost:   StarFlash: As an emerging wireless technology, the hardware cost of StarFlash devices is relatively high. This could be a significant factor hindering the widespread adoption of StarFlash in the short term.   Bluetooth: Bluetooth technology is already very mature, and hardware costs are relatively low. Therefore, in terms of cost, Bluetooth has a clear advantage.   Overall, both StarFlash and Bluetooth have their own advantages, disadvantages, and suitable scenarios. In the future, these two technologies may learn from each other and merge for further development. Let us look forward to seeing how these wireless technologies will play increasingly important roles in our lives.   With the widespread interest sparked by the outstanding performance of StarFlash technology, many are eagerly anticipating firsthand experiences. Regarding StarFlash modules, according to the latest information, Shenzhen QOGRISYS Technology Co., Ltd. will soon release StarFlash modules. QOGRISYS, as a comprehensive IoT solution provider, offers a diverse product line to meet the varied demands of the IoT market. QOGRISYS'S product line covers WIFI, BT, WIFI HaLow, Nearlink, as well as IOT/AIOT, PLC, Cellular, and more to address the needs of different scenarios. We believe everyone will be able to confidently choose the suitable module according to their product requirements.   We also welcome everyone to follow us, and we will bring you more detailed information about StarFlash modules as soon as they go online. Stay tuned for updates.      

2024

03/18

WIFI7: A New Era in Wireless Communication

  In the digital era, wireless communication has become an indispensable part of our lives. With the advent of Wi-Fi 7, we usher in a new era of wireless connectivity. The upgrade to this standard completely revolutionizes our expectations for speed, efficiency, and connectivity. Wi-Fi 7 represents the next generation of Wi-Fi standards, corresponding to the upcoming release of the new revision standard IEEE 802.11be – Extremely High Throughput (EHT). Building upon Wi-Fi 6, Wi-Fi 7 introduces technologies such as 320MHz bandwidth, 4096-QAM, Multi-RU, multi-link operation, enhanced MU-MIMO, and multi-AP coordination. These advancements enable Wi-Fi 7 to provide higher data transfer rates and lower latency compared to Wi-Fi 6. The theoretical throughput of Wi-Fi 7 is expected to support up to 46Gbps, roughly more than four times that of Wi-Fi 6.     Analysis of Key Features of WIFI 7:   Maximum 320MHz bandwidth:   The 2.4GHz and 5GHz frequency bands, being unlicensed spectra, are limited and congested. Existing Wi-Fi encounters inevitable low Quality of Service (QoS) issues when running emerging applications such as VR/AR. In order to achieve a maximum throughput goal of no less than 46Gbps, WIFI 7 will continue to introduce the 6GHz frequency band. It will also add new bandwidth modes, including continuous 240MHz, non-continuous 160+80MHz, continuous 320MHz, and non-continuous 160+160MHz. This represents more than a fourfold increase compared to the previous generation, providing robust support for high-demand applications such as 4K and 8K video (with potential transmission rates of up to 20Gbps), VR/AR, gaming (with latency requirements below 5ms), remote work, online video conferencing, and scenarios involving cloud computing.     Multi-RU Mechanism:   In WIFI 6, each user can only send or receive frames on the specific RU (Resource Unit) assigned to them, significantly limiting the flexibility of spectrum resource scheduling. To address this issue and further enhance spectrum efficiency, WIFI 7 defines a mechanism that allows the allocation of multiple RUs to a single user. Of course, to balance the complexity of implementation and spectrum utilization, the protocol imposes certain restrictions on the combination of RUs. Specifically, small-sized RUs (less than 242-Tone RUs) can only be combined with other small-sized RUs, and large-sized RUs (242-Tone RUs and above) can only be combined with other large-sized RUs. Mixing small-sized RUs and large-sized RUs is not allowed.     4096-QAM modulation technology:   The 4096-QAM modulation technology of WiFi 7 opens up a new frontier in transmission, with each modulation symbol carrying 12 bits of information. Under the same encoding, compared to WiFi 6's 1024-QAM, it achieves a 20% increase in speed. This means that more data can be transmitted in the same amount of time, providing you with a faster and more stable connection experience.     Multi-Link Mechanism:   WiFi 7 not only supports a wider spectrum but also introduces the Multi-Link mechanism to maximize the utilization of available spectrum resources. The working group has defined technologies related to Multi-Link aggregation, including enhanced Multi-Link aggregation MAC architecture, Multi-Link channel access, and Multi-Link transmission. These technologies aim to provide a more reliable and efficient wireless connection.     Support for more data streams, enhanced MIMO functionality:   The powerful MIMO capabilities of WiFi 7 propel your connection to new heights. Supporting more data streams, from 8 to 16, theoretically doubling the physical transmission rate. Additionally, the introduction of distributed MIMO enables multiple access points to collaborate, delivering a more robust and stable wireless connection.     Support for collaborative scheduling among multiple Access Points (APs):   Currently, within the 802.11 protocol framework, there is limited collaboration among Access Points (APs). WiFi 7 not only focuses on the performance of individual access points but also introduces collaborative scheduling among multiple APs. The collaborative scheduling in WiFi 7 includes coordinated planning in both time and frequency domains within cell boundaries, interference coordination within cell boundaries, and distributed MIMO. This can effectively reduce interference among APs, greatly enhancing the utilization of air interface resources.     The launch of WiFi 7 signifies a leap forward in the field of wireless communication, providing stronger and more efficient support for digital living and innovative applications. As experts in the wireless communication domain, Shenzhen Ofeixin Technology Co., Ltd. has successfully developed the WiFi 7 module. Our O7851PM WiFi 7 module, based on the independently developed WCN7851 chip from Qualcomm, is a significant innovation, encompassing all the functionalities of WiFi 7. Stay tuned for our latest achievements!      

2023

12/28

Three-Tier Architecture of StarFlash

In the wave of digital transformation, IoT (Internet of Things) technology is emerging as the link that connects the world, seamlessly integrating various smart devices into a cohesive whole. Against this backdrop, StarFlash is making its mark as a key hub for connecting the future. This article will introduce the three-tier architecture of the StarFlash system, including the foundational application layer, foundational service layer, and StarFlash access layer. Additionally, it will cover two communication interfaces within the StarFlash access layer: SLB (Basic Access) and SLE (Low Power Access).   The three-tier architecture overview of StarFlash:                                               Basic Application Layer: Implements multifunctional applications for various scenarios, serving sectors such as automotive, home, audio-visual, and more. Provides rich functionalities, enabling widespread applications of the StarFlash system across different industries.   Basic Service Layer: Comprises multiple foundational functional units, offering support for upper-layer applications and system management. Delivers robust foundational support to ensure system stability and reliability.   StarFlash Access Layer: Provides two communication interfaces, SLB (Basic Access) and SLE (Low Power Access), catering to Wi-Fi and Bluetooth network scenarios, respectively.   SLB (Basic Access): Pursues high bandwidth, large capacity, and high precision. Supports single/multiple carriers, operating in the 5GHz unlicensed frequency band. Bandwidth ranges from 20MHz to 320MHz, supporting various modulation schemes. Utilizes technologies such as ultra-short frames, multi-point synchronization, asynchronous HARQ, etc., to enhance communication performance.                                                             SLB   SLE (Low Power Access): Emphasizes low power consumption, low latency, and high reliability. Uses single-carrier transmission, operating in the 2.4GHz unlicensed frequency band. Supports bandwidths of 1MHz, 2MHz, and 4MHz, with various modulation schemes. Features include reliable multicast, short-latency intercommunication, secure pairing, etc., taking energy-saving factors into full consideration.                                                                  SLE   Guided by starlight, StarFlash is about to be introduced by QOGRISYS, injecting new vitality into the development of smart devices. In this digitized celestial landscape, StarFlash is poised to lead the way as the light of the future, unlocking greater possibilities for connectivity.  

2023

12/25

StarFlash: The Future Star of Wireless Communication

Concept of StarFlash:   StarFlash (Nearlink) is a new generation short-range wireless connectivity technology launched by the NearLink Alliance, spearheaded by the China Academy of Information and Communications Technology. In contrast to traditional WiFi and Bluetooth wireless communication technologies, StarFlash has undergone extensive innovative upgrades and has incorporated key 5G technologies. It has redefined the standards for wireless connectivity, achieving qualitative leaps in terms of speed, latency, transmission distance, security, and reliability. It can be considered as an upgraded hybrid version of WiFi and Bluetooth.     Applications of StarFlash:   Consumer Electronics Scenario:   StarFlash technology has found extensive applications in the consumer electronics sector. After the establishment of its standards, it was initially implemented in the commercial domain, primarily utilized in devices such as smartphones, tablets, mice, keyboards, headphones, speakers, stylus pens, and more. Leveraging its low power consumption characteristics, StarFlash significantly reduces device power consumption, extends standby durations, and effectively addresses the inconvenience of frequent recharging. In the realm of audio transmission, StarFlash technology stands out for its high speed and low latency, enabling high-quality, multi-channel, lossless audio transmission. In comparison to traditional Bluetooth, StarFlash technology supports higher-quality stereo high-definition audio. On the other hand, in the context of wireless mouse connectivity, the introduction of StarFlash technology significantly enhances mouse performance. Taking the example of a StarFlash technology mouse, it boasts an average refresh rate of up to 4KHz, four times that of traditional 2.4GHz mice. Simultaneously, the average transmission latency is only 413.14μs, a quarter of that of 2.4GHz mice. For gamers, this means a substantial improvement in user experience, providing more precise control and meeting the demands of users requiring high-level gaming performance. Furthermore, StarFlash technology exhibits outstanding anti-interference capabilities, allowing it to operate more stably in electromagnetically complex environments such as subways, high-speed trains, airports, and other locations. This reduces the likelihood of transmission jitter or dropout issues.       Smart Home Scenarios:   StarFlash supports a large number of connections, allowing users to effortlessly connect more devices without worrying about mutual interference between them. This is crucial for the growing number of smart home devices and terminals. StarFlash technology boasts a communication range over twice that of Bluetooth, meaning users can freely arrange smart devices without concerns about signal coverage limitations. This, in turn, enhances the reliability and flexibility of smart home systems. In the realms of home entertainment and motion-sensing gaming, StarFlash technology plays a pivotal role. It enables the simultaneous connection of multiple game controllers and motion sensors, allowing more family members to participate at the same time and enhancing the overall gaming experience for the entire household. It can be said that the high connection capacity, extended communication range, and support for multiple devices provided by StarFlash technology offer a more convenient and enriched user experience for applications in the smart home scenario.     Smart Industrial Applications:   With its notable performance advantages in low latency, high reliability, precise synchronization, and anti-interference capabilities, StarFlash technology plays a critical role in industrial manufacturing scenarios. In StarFlash MLE (Multi Link Enhanced) mode, the positioning accuracy can reach centimeter-level precision, providing high-speed, high-capacity, low-latency, and highly reliable connectivity and collaboration for industrial robots, sensors, controllers, and more. Through StarFlash technology, users can achieve remote monitoring and control of industrial equipment data and operational status via smartphones or tablets. This offers a more convenient way for the management and maintenance of industrial equipment, addressing challenges posed by diverse communication protocols while providing high-precision positioning capabilities. This, in turn, realizes intelligent connectivity and collaboration for industrial equipment.     As the future star of short-range wireless connectivity, StarFlash technology has demonstrated outstanding performance and widespread application prospects in various domains, including consumer electronics, smart homes, and intelligent industries. Its features, such as low power consumption, high connection capacity, extended communication range, and resistance to interference, position it as a significant upgrade in current wireless communication technologies. StarFlash's remarkable characteristics make it a key player in the evolution of wireless communication, promising enhanced performance and versatility in the realms of consumer electronics, smart home applications, and intelligent industrial systems.     In 2023, heralded as the commercial debut year for StarFlash, to meet the demands of emerging markets, QOGRISYS, Ltd. is set to launch corresponding StarFlash modules in the near future. This product aims to provide users with a more efficient and reliable wireless connectivity experience. Feel free to visit QOGRISYS'S official website for more information on StarFlash technology and the latest product releases. We look forward to collaborating with you in the field of intelligent wireless communication to create a more convenient and intelligent future!   Welcome to the QOGRISYS official website: www.wifibtmodule.com  

2023

12/22

WiFi 7: O7851PM Throughput Test

In recent years, with the rapid advancement of technology, WiFi technology has been continuously evolving, transitioning from WiFi 6 to WiFi 6E, and now garnering significant attention is WiFi 7. This time, our focus is on the latest WiFi 7 module developed by QOGRISYS: O7851PM. We will delve into the core metrics of WiFi 7, specifically throughput testing, to explore its performance advantages.   The foundational specifications of O7851PM: O7851PM is a WiFi 7 module designed based on the Qualcomm WCN7851 chip. It utilizes an M.2 PCIe interface with dimensions of 22*30*2.7mm. The module supports features such as 4096QAM, 320MHz bandwidth, Multi-RU mechanism, Multi-LINK multi-link mechanism, and incorporates WiFi 7 technologies including CMU-MIMO and collaborative debugging among multiple access points.     O7851PM Test Environment Setup:   1.Shielded Room   2.Testing Method:   The O7851PM module is used as an Access Point (AP), with another O7851PM module serving as a Station (STA) connected to the first O7851PM. Two external rod antennas, with two transmitters and two receivers, are connected via PCIe to a PC running a Linux system. The system is powered by a direct current power supply. The PC utilizes iperf to conduct throughput testing on the O7851PM module's TX/RX performance.     Actual Test Screenshots:   1、TCP DL/UL: 2.4G EHT40(688.5Mbps)       2、TCP DL/UL:6G EHT320(5764.8Mbps)     3、TCP DL/UL:5G EHT 160 (2402Mbps)     4、TCP DL/UL:5G HE160 (2402Mbps)     5、TCP DL/UL:6G HE160 (2402Mbps)     6、HBS: TCP DL/UL:5G EHT80 +6G EHT160 (1200Mbps+2402Mbps)     7、HBS: TCP DL/UL:5G EHT80 +5G EHT160 (1200Mbps+2402Mbps)     8、DBS: TCP DL/UL:2.4G EHT40 +5G EHT160 (600Mbps+2230Mbps)     The data summarized above:     From the above table, we can observe that the O7851PM WiFi 7 module not only supports the 6GHz frequency band but also introduces HBS. It also retains the WiFi 6E DBS functionality. In the real-world throughput test at 6GHz with a 320MHz bandwidth, the measured throughput can reach 3900Mbps. In summary, through the throughput testing of the O7851PM WiFi 7 module, we catch a glimpse of its outstanding performance in the field of wireless communication. Meanwhile, as experts in the wireless communication domain, QOGRISYS will continue to delve deep into wireless communication, providing users with more advanced and intelligent communication solutions to contribute to building a more interconnected future

2023

12/19

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