[Beijing, China, on April 15, ] NIDA 400G Per Lane MSA released the world's first White Paper on the Single-Channel 400G Ethernet Physical Layer at the Cloud Network SmartLink Conference 2026. The White Paper systematically proposed the technical framework of the Single-Channel 400G Ethernet physical layer, which is an important breakthrough in China's next-generation high-speed interconnection technology.The white paper was prepared by the Single Channel 400G Multi-Source Protocol Group (MSA), 400G Per Lane MSA of the Global Fixed Network Innovation Alliance (NIDA). It brings together the technical contributions of more than 20 world-leading enterprises and organizations, including China Mobile, Huawei, Mosheng Technology, Alibaba Cloud, Tencent Cloud, Deutsche Tech, and Viacom. Covers key technologies such as single-channel 400G optical interconnection, electrical channel, SerDes, FEC architecture, and modulation format, and fills the gap in the bottom-layer technology system of single-channel 400G Ethernet in the industry.As AI large model parameters exceed 100 billion, high-speed interconnection requirements between GPUs in the intelligent computing center are rapidly increasing, and higher interconnection bandwidth is urgently required. The bandwidth of a single GPU interconnection port has reached 1.6 Tbit/s. To achieve the bandwidth of a single GPU interconnection port at 3.2 Tbit/s, there are two paths: "Increase the single-channel rate" and "Increase the number of channels". The existing 200 Gbit/s single channel requires 16-channel aggregation, which imposes heavy pressure on ports, heat dissipation, and cabling, and is difficult to implement. A single channel of 400Gbps requires only eight channels of aggregation, which is the only feasible solution. 400 Gbit/s per channel is not a simple doubling of the rate. It is a systematic innovation that breaks the limits of physical transmission. It is facing multiple challenges, such as theory, material, integration, and industry collaboration, and is critical to the dominance of intelligent computing networks in the next decade.As the first milestone of single-channel 400G MSA, this white paper proposes a single-channel 400G Ethernet physical layer technical framework and systematically describes key technologies such as high-speed optical interconnection, electrical channels, and SerDes. In the aspect of optical interconnection, the technical progress of three mainstream modulator platforms is analyzed, and the supporting path for high-speed optical modules is defined. In the aspect of electrical channel, the influence of different materials and designs on signal integrity is discussed, which provides an important basis for the realization of higher rate electrical channel. In terms of SerDes technology, focus on its architecture optimization and process requirements to meet the core challenges of high-speed electrical interfaces. In addition, the paper systematically compares the performance of the two mainstream modulation formats based on the FEC architecture design, and points out that the final choice will depend on industry advances in passive channel bandwidth.In 2025, NIDA will join hands with more than 20 leading institutions around the world, including China Mobile, Alibaba, and Tencent, to establish a single-channel 400G MSA based on NIDA. The aim is to pool industry efforts and accelerate the development of standards, ecosystem improvement, and large-scale deployment of related technologies. Build a solid technical foundation for the high-quality development of next-generation high-speed Ethernet; Jointly promote the formulation of single-channel 400G technology standards and industry implementation, and build an open and collaborative ultra-high-speed Ethernet technology ecosystem for the next-generation intelligent computing center.NIDA 400G MSA will organize member units to continuously improve the technical framework, release detailed technical specifications, promote industry consensus and multi-vendor interconnection, and form international standards conducive to the development of China's high-speed interconnection industry and help China's industry gain advantages in the next-generation high-speed interconnection technology upgrade. Support the high-quality development of infrastructure in China's intelligent computing centers.

The 400G per Lane Multi-Source Agreement (MSA) hosted by NIDA released the industry's first comprehensive white paper on 400G per lane Ethernet physical layer (PHY) technologies. This industry-first analysis anticipates the emerging requirements for scaling AI clusters, where network bandwidth limitations increasingly constrain computing efficiency and cluster utilization.As AI model parameters scale to trillions and AI clusters regularly exceed 100,000 accelerators, communication overhead can consume 30 to 60 percent of total training time. Switch radix saturation---constrained by packaging and thermal limits to approximately 128 ports---has made higher bandwidth per lane the primary scaling vector. The transition to 400G per lane Ethernet PHY technology represents the next frontier, demanding lane speeds exceeding 400Gb/s to achieve switch capacities beyond 400 Terabit per second.Building upon a comprehensive assessment of the latest advancements in both optical technologies and electrical channels for 400G per lane signaling, the white paper evaluates modulation schemes and forward error correction (FEC) techniques, establishing a solid foundation for the development of interoperable Ethernet PHYs.The technical study represents a collaborative effort bringing together over 20 member organizations to establish early technical consensus on emerging requirements. Contributors span across operators, hyperscalers, equipment vendors, component suppliers, and test/measurement vendors, including China Mobile, Alibaba, Tencent, Huawei, Credo, Keysight, ZTE, Accelink, AFR, CAICT, Centec, H3C, Joywell, Ligent, Longsight, Luxshare-ICT, PhotonicX AI, Ruijie, Source Photonics, TFC, Viavi Solutions and Xinertel. This early alignment helps reduce future interoperability risks and positions the industry to move cohesively as 400G per lane technology matures.About 400G per Lane MSA and NIDAThe 400G per Lane Multi-Source Agreement (MSA) is dedicated to advancing 400G per lane Ethernet technologies and fostering multi-vendor interoperability. Founded in 2025, the MSA brings together leading operators, hyperscalers, equipment vendors, component suppliers, and test/measurement vendors to establish early technical direction and coordination for emerging 400G per lane technologies.The Network Innovation and Development Alliance (NIDA) is an international, industry-based, non-profit social group formed voluntarily by industry organizations, universities, research institutes, companies, and enterprises from all over the world, focusing on promoting fixed network technology innovation and industrial upgrades.To download the full whitepaper,please visit：[https://www.nida-alliance.org/uploadfile/202604/41cb8edec7edd48.pdf].

[Shanghai, China, April 1] The 2026 Chinese and Foreign Hotel Brand Innovation Forum was held during the 2026 Shanghai International Hotel Exhibition. The event focused on core topics such as digital transformation of the hotel industry and upgrade of smart residence scenarios. Bringing together top hotel brands at home and abroad, senior industry experts and eco-partners to explore new development paths. Bo Yang, vice director of NIDA's Industry Development Dept, attended the conference. He joined hands with Huawei, Junlai International, Anpu, Hanzhong, and held the launch ceremony of Junlai International's "Reassurance Hotel" solution and the "Reassurance Hotel" solution acceleration, marking the acceleration of the implementation of the smart and secure residence ecosystem.Peace of Mind Hotel is the main innovation direction of the Wireless Smart Awareness Joint Working Group jointly established by NIDA and WAA in the hotel industry. This industry alliance aims to combine industry forces in various countries and regions to enhance the innovation and wide application of WLAN Smart Awareness technologies in related scenarios. Huawei is committed to building an open and win-win ecosystem based on AI as the core driving force and IoT awareness capabilities brought by IEEE 802.11be. This ecosystem is first compatible with IoT plug-in cards or built-in IoT modules in the IEEE802.11ac/ax phase, and adds CSI (Channel State Information, channel state information) and millimeter wave radar technologies, enabling traditional WLANs focusing on connectivity to overlay powerful AI IoT sensing applications.Bo Yang expressed the theme of "WLAN smart sensing capabilities enable the hotel industry to accelerate all-domain digital intelligence". He proposed to build a converged network construction model of "perceived + IoT + security" based on APs, breaking the situation of multi-network coexistence in traditional hotel networks. Leveraging all-scenario leading Wi-Fi 7 products, CSI synaesthesia technology, RCU container sinking solution, and exclusive Smart Eye anti-scandal technology, hotels can help reduce costs, improve efficiency, and operate safely, and build a solid foundation for digital intelligence technologies.Since the concept of "Reassurance Hotel" was first proposed in Sanya last year, it has become a consensus and transformation direction in the industry. The concept of "Reassurance Hotel" is defined from two dimensions of guest and wine management and six levels of system to reshape the new digital culture and travel ecosystem of hotels. For guests, Peace of Mind is divided into three levels: Level 1 provides the ultimate Wi-Fi experience and standard Wi-Fi 7 premium network. Level 2 focuses on personal privacy protection to ensure that there is no candid camera in guest rooms. Level-3 focuses on providing a data security smart space for business negotiation and confidential office. For the wine management, the first level achieves green energy saving; Level-2 achieves intelligent O&M, fast delivery, and non-stop upgrade. Level 3 uses smart IoT and CSI synaesthesia technologies to build future-oriented smart hotels. Its system not only clearly defines the technology implementation path, but also provides a clear value anchor for differentiated hotel competition.At the conference, Junlai International released the "Reassurance Hotel" solution, which is another example of the implementation of Reassurance Hotel in the industry. Junlai International introduced the WLAN intelligent sensing solution, practiced the "Reassurance Hotel" standard, built the guest room anti-scanny shooting system, and upgraded the intelligent and secure operation, becoming the industry benchmark. As more and more customers, standards organizations, and ecosystem partners join the Anxin Hotel ecosystem, Huawei will continue to open up its technical capabilities, work with industry chain partners to improve standards, and expand scenarios. Drive more hotel brands to upgrade to secure and intelligent "hotels with peace of mind".The exhibitors at this Shanghai International Hotel Expo covered most of the mainstream hotel customer control solution vendors in China, among which BitSmart and John Zhong exhibited the complete solutions and application cases of "Reassuring Hotel", which were favored by hotel owners, tavern group customers, and upstream and downstream partners. Sufficiently, the concept of "easy hotel" with wireless intelligence as the core technology will become the industry leader!NIDA will work closely with industry, university, and research organizations, standards organizations, and industry organizations at home and abroad to build a complete and efficient wireless intelligent sensing ecosystem.

【Barcelona, Spain, March 3】 During MWC 2026 (Mobile World Congress 2026), Yiou, Deng , Secretary-General of NIDA, attended the WLAN Global Industry Forum 2026 and participated in the inauguration ceremony of the WLAN Intelligent Sensing Industry Ecosystem Organization.Attendees at the ceremony included:Ping Zhang , Chairman of WAA; Adolfo Borrero, Chairman of the Smart City Committee of AMETIC;Tayeb Ben Meriem, Vice President of the IPv6 Forum; Shaoqi Zhao , President of Campus Network Domain, Huawei Data Communication Product Line; Shavkat Sabirov, President of the Internet Association of Kazakhstan; Xiasheng Zhang , CEO of Shenzhen Huazhao Technology Co., Ltd; Zhenhua Wei, Director of the Europe, Africa and CIS Market of Bit Intelligent.The event officially marks that the WLAN Intelligent Sensing Industry Ecosystem Organization has entered a substantial development stage.Above: Inauguration ceremony of the WLAN Intelligent Sensing Industry Ecosystem Organization at MWC 2026.Jointly initiated by WAA and NIDA, the ecosystem organization aims to unite industrial forces from various countries and regions, and strengthen the innovation and wide application of WLAN intelligent sensing technologies in relevant scenarios. Committed to taking AI as the core driving force, it will build an open and win-win ecosystem based on the IoT sensing capabilities brought by IEEE 802.11be.The ecosystem is first compatible with IoT cards or built-in IoT module solutions from the IEEE 802.11ac/ax era, and adds CSI (Channel State Information) and millimeter-wave radar technologies, empowering traditional connection-focused WLAN with powerful AI IoT sensing applications.The core of CSI sensing lies in using the propagation characteristics of wireless signals and analyzing channel state information to obtain information such as object movement and position changes in the environment. This technology benefits from several factors:First, Wi-Fi communication systems are continuously evolving toward higher frequency bands, larger antenna arrays and miniaturization, making them increasingly consistent with wireless sensing systems in hardware architecture, channel characteristics and signal processing, providing a hardware foundation for sensing technology.Second, with the rapid development of artificial intelligence and signal processing algorithms, the accuracy and efficiency of extracting useful information from CSI data have been significantly improved.Third, scenarios such as intelligent energy saving, intelligent transportation and intelligent security are growing in demand for real-time sensing and communication, presenting obvious cost advantages over traditional sensing technologies such as radar and cameras.Millimeter-wave radar technology is also entering a stage of rapid development in large-scale applications in healthcare, elderly care and other scenarios. The integration of WLAN and millimeter-wave radar technology has become the optimal solution.To unleash the technical advantages of the new IoT sensing capabilities, adaptation with terminals and applications in industry scenarios such as office energy saving, medical and elderly care, asset management and smart hotels is required. Therefore, an ecological cooperation organization is essential to achieve end-to-end ecological collaboration, gradually improve interface standards and compliance specifications between WLAN, southbound terminals and northbound application platforms, and promote the deployment standards for various scenarios.WAA and NIDA will work closely together, unite relevant global organizations and industrial chain resources, and strive to build a complete and efficient WLAN IoT sensing ecosystem.

[Nanjing, January 09, 2026] The CENI-NIDA Joint Innovation Center jointly established by Jiangsu Future Network Innovation Research Institute and the Global Fixed Network Innovation Alliance (NIDA) was officially inaugurated. Based on the industry consensus on the future network, the two parties are committed to standard development, pilot implementation, and industry promotion activities for "joint computing", "joint data", "joint intelligence", and "joint air".Tan Hang, executive vice president of Jiangsu Future Network Innovation Research Institute, and Deng Yiou, secretary general of the Global Fixed Network Innovation Alliance, opened the innovation center. The establishment of the center marks a new stage of strategic cooperation between the two sides on innovation demonstration.Secretary-General Deng Yiou reviewed important milestones in cooperation between the two sides since 2023 and thanked the Institute for its long-term support. The two sides will continue to deepen cooperation in exploring network evolution, innovation collaboration, scenario-based innovation demonstration of new quality Internet, application of industry standards, and industrialization implementation. Focusing on network AI, "east counting and west computing", and space-space integration, we will cooperate and innovate. We will make full use of the standards and international advantages of CENI's national big science devices and the Global Fixed Network Innovation Alliance, and contribute to the innovation and leadership of China's fixed network industry.