With the vigorous development of the digital economy and the emergence of new technologies and new business models, the park, as the main production site for thousands of industries, is accelerating its transformation towards digitalization and intelligence.
The park serves as the primary production site for a wide range of industries including government affairs, manufacturing, healthcare, education, and transportation. It covers the vast majority of office and production scenarios. Over 80% of the domestic GDP and 90% of the innovative achievements are generated within the park. With the rapid growth in the number of terminals, the rapid increase in wireless service bandwidth, and the increasing demands for service experience, the park network is currently in the stage of evolving from a gigabit network to a high-quality 10-gigabit network.
The park serves as the primary production site for various industries such as government affairs, manufacturing, healthcare, education, and transportation, covering the vast majority of office and production scenarios. The number of terminals connected to the national network is constantly increasing, including both intelligent terminals and IoT terminals. According to statistics from Gartner and ABI Research, the global average number of wireless terminals per person will increase from 1 per person in 2022 to 3-5 per person in 2025. At the same time, the number of IoT devices is also growing rapidly, with 80% of them connected to the network through wireless access. The park network needs to meet the access requirements of a large number of terminals.
In enterprise office operations, applications such as cloud desktops, video conferencing, 4K videos, VR/AR are gradually becoming more widespread, leading to a significant increase in bandwidth demand. Take video conferencing as an example, its market size will grow by nearly 4 times in the next 10 years, with a compound annual growth rate of 10%. High-definition video conferencing is an important growth point in the market, with each participant requiring at least 10 Mbit/s of upstream and downstream bandwidth. This means that the industry park network needs to support a multiple increase in video conferencing bandwidth.
The number of video conferences, VR/AR and other services that are sensitive to latency and jitter continues to increase within the park. For instance, the latency requirement for video conferences is generally less than 150ms, and the jitter is less than 50ms; while VR services have higher requirements for bandwidth and latency, with a single connection bandwidth requirement exceeding 500Mbit/s and latency not exceeding 20ms. The park network needs to provide stable quality guarantees to ensure the user experience.
The 10 Gigabit campus network features significant characteristics such as ultra-wide bandwidth of 10 Gigabit, stable and reliable performance, guaranteed experience, intelligent operation and maintenance, security protection, and green and low-carbon environmental friendliness. It not only needs to meet the demand for significantly increased access bandwidth, but also should have the networking capability of continuous wireless coverage, enhance and guarantee the application and user experience, achieve intelligent network operation and maintenance, and thus fully meet the new business requirements of high-quality 10 Gigabit industies park.
The overall carrying solution composed of multiple technologies such as 50G-PON, FTTR (Fiber To The Room), and Wi-Fi 7 can effectively support the aforementioned 10G-park business requirements. 50G-PON can provide ultra-large bandwidth optical access capabilities, meeting the needs of various large-bandwidth services within the park; FTTR technology can extend the fiber to each room or area, achieving ultra-high-speed and seamless coverage of the network within the park; compared with previous generations of Wi-Fi technologies, Wi-Fi 7 has higher transmission rates, lower latency, and stronger anti-interference capabilities in wireless access, and through the coordination of optical and wireless, it can provide users with a high-quality wireless network experience. The three technologies work together to form a powerful 10G-park network solution, which can meet the all-round network requirements of the park during its digital transformation process.
In the construction of the smart industies park, the overall solution consisting of 50G-PON, FTTR and Wi-Fi 7 provides strong technical support, significantly enhancing the network performance and application experience of the park. This solution's technological innovation and optimization enable it to meet the high requirements of the park for the network, especially in aspects such as high-density access, low latency, large bandwidth and strong anti-interference capability.
The 50G-PON technology, as a new generation of optical access technology, features symmetric upstream and downstream transmission rates of up to 50Gbit/s, which can meet the demands of various large-bandwidth services within the park. The PON port on the 50G-PON OLT (Optical Line Terminal) side is equipped with a three-transmitter-three-receiver and six-way multiplexing (MPM) device, which can simultaneously support G-PON (Gbit/s passive optical network), XGS-PON (10Gbit/s symmetrical passive optical network), and 50G-PON collaborative transmission. This multi-generation PON technology coexistence feature enables the park network to achieve progressive upgrading without large-scale renovations, significantly reducing deployment costs and network interruption risks. Based on network slicing and class of service-based business carrying capabilities, this technology can provide differentiated network services for different functional areas such as office, production, and life, meeting the diverse requirements of various services for bandwidth, latency, and security. Based on the P2MP (Point-to-Multipoint) passive optical distribution network, it has better scalability and flexibility compared to network cables, with lower power consumption and stronger anti-interference capabilities, and can better adapt to the demands of future business growth.
The FTTR technology is based on the P2MP architecture and extends the optical fibers further into each room or area, for Wi-Fi data transmission back and to support the overall network management and optimization. It builds a manageable high-speed Wi-Fi network within the user's premises. According to the technical standards of the upstream PON port and the different optical interface technologies between the master and slave devices, FTTR equipment is divided into multiple generations. Among them, the optical path rate between the master and slave devices of 50G-PON FTTR is symmetrical 10 Gbit/s, and that of XGS-PON FTTR is symmetrical 2.5 Gbit/s. Currently, both of these two generations of products support Wi-Fi 7. Based on factors such as business requirements and cost performance, FTTR of each generation can be deployed as needed. FTTR can inherit the successful operation and maintenance experience of the operator's FTTH (fiber to the home) and has the advantages of flexible expansion and a telecommunications-grade network that is visible, manageable, and maintainable.
Compared with Wi-Fi 6, Wi-Fi 7 has achieved breakthroughs in transmission rate, latency, and anti-interference capability through technologies such as the highest 4096-QAM modulation, MLO (Multi-Link Operation), and MRU (Multi-Radio Unit). Based on domestic spectrum planning (40MHz + 160MHz + 80MHz) and mainstream device configuration (MIMO 2×2), the physical layer peak rates achievable in typical two-link aggregation scenarios are 3570.6 Mbit/s (40MHz + 160MHz) and 4323.6 Mbit/s (160MHz + 80MHz); in the MIMO 4×4 mode, the physical layer peak rate can be increased to 7141.2 Mbit/s (40MHz + 160MHz) and 8647.2 Mbit/s (160MHz + 80MHz). In typical application scenarios, considering the overhead of air interface beacon frames, channel backoff, collisions, and confirmation frame feedback, the effective transmission rate is usually 75% of the physical layer peak rate. The combination of these technologies significantly improves the data transmission efficiency of Wi-Fi 7. The low latency feature of Wi-Fi 7 ensures the rapid transmission of data and effectively reduces operation latency, providing reliable network support for real-time interaction application scenarios (such as intelligent robot communication, etc.). By integrating core technologies such as MLO, MRU, preamble hole punching, and multi-AP (wireless access point) collaboration of Wi-Fi 7, it possesses advantages such as low latency, QoS (Quality of Service) guarantee, and strong anti-interference capability.
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