Thinking about the development of gigabit optical network services for operators
At present, China's gigabit optical network construction and deployment has entered a rapid development phase, and has achieved global leadership in four aspects: technology level, network capacity, industrial ecology, and user scale. As of the end of the first quarter of 2023, China has 110 million broadband gigabit or more users, 17.93 million 10G PON ports, gigabit optical network has the ability to cover more than 500 million households, the network scale and coverage level ranked first in the world. Currently, domestic telecom operators have focused on the new direction of Gigabit optical network technology evolution, and continue to explore the application of Gigabit optical network in different scenarios through research and development, trials to find new market opportunities and development paths.
Technology evolution direction of Gigabit optical network
Direction 1: All-optical transmission side from the basic bearer network to high-speed, high-capacity, high-quality service network gradually transformation, around the end-to-end flat network architecture of high-speed technology is constantly developing and evolving. At present, the industry accelerates the construction of 400G optical transport network, of which the short-range system has gradually matured, in the metropolitan scenario and part of the backbone scenario has begun commercialization; long-range and ultra-long-range system has carried out a series of experiments, and basically has the feasibility of commercialization. Currently, 800G, 1.6T optical transport network has become a key research direction, international and domestic standardization organizations have launched relevant research. IEEE, OIF and other organizations on 800G standards will soon be released, the relevant technology to 10km, 40km of the short and medium distance down. At the same time, the industry for 1.6T development needs, application scenarios and technical solutions are being further discussed, and the research and development of transceiver chips and other related products and standards are being carried out simultaneously.
Direction 2: In addition to the improvement of single-pass rate, the number of channels of the entire WDM can be increased by widening the transmission spectrum to achieve system capacity expansion and performance improvement. The C+L band can increase the transmission capacity by nearly one time, and the industry has developed C6T amplifier and L4.8T amplifier, and needs to promote the gradual maturation of optical amplifier and other optoelectronic device technology and industry to realize the spectrum expansion of 80×150GHz= 12THz ultra-wide spectrum range. In addition, in the future, with the optical transmission capacity is greater, S + C + L-band and other more spectrum expansion program will become an important direction for future evolution.
Direction three: access side around all-optical, ultra-broadband, differentiated and intelligent evolution and development. pon network evolution about every eight to ten years a generation, the current stage of 10G PON has been applied on a large scale. 2021 September, ITU-T identified 50G PON as the mainstream technology of the next generation of PON, and issued relevant standards to support the construction of 10 Gigabit broadband network. Currently, mainstream operators at home and abroad have chosen 50G PON as the next-generation technology research and development direction, and there is already a pilot application of 50G PON in 2023. In addition, the standardization work of ITU-T for FTTR has been officially launched, mainly containing network architecture, optical layer parameters, interaction protocols and remote management and other related standards. Relevant domestic experts participate in the development of some standards to promote FTTR to achieve gigabit optical access network to gigabit home network development.
Gigabit optical network enables B- and C-side diversified scenario applications
First, gigabit optical network supports the smart home to take the lead in landing applications and enhance the digital level of family life. FTTR's high performance, high reliability, and strong networking capabilities are well suited to the needs of network layer elements of smart home services. FTTR's high performance, high reliability, strong networking capabilities and other features are well suited to the needs of smart home and other services for the network layer elements, can truly achieve all-round coverage of gigabit broadband in all corners of the home, thereby enhancing the user experience of smart home products.
Secondly, the dual-gigabit synergy will gradually meet the network needs of industrial data convergence and precision manufacturing. Gigabit optical network is suitable for high performance demand in industrial fixed scenarios, while 5G is suitable for mobile objects with low latency requirements, such as AGV, intelligent storage and other scenarios. 5G and Gigabit optical network will further synergize for scenarios with low latency, large bandwidth, low jitter, large data particles and large quantities. This will realize the deep integration of IT and OT in industrial enterprises, and help enterprises build a flat and efficient industrial network at the end of the network, thus accelerating the digital transformation of enterprises.
Furthermore, gigabit optical network has a broad application space in various fields of society and people's livelihood, which can narrow the digital divide and promote the equalization of public services. Gigabit optical network has been the first to enter the scene landing and scale promotion stage in digital government, smart city, education and medical fields, while it is still in the industry exploration stage in agricultural informatization, helping rural revitalization, cultural tourism and other fields. In the future, gigabit optical network will be used in a broader range of people's livelihood inclusive application scenarios, helping to enhance the happiness and sense of access to people's lives.
Operator gigabit optical network business development suggestions
As the main force of network construction, operators continue to consolidate the new digital base of gigabit cities. China Telecom continues to carry out the construction of all-optical network, which has covered 345 cities, over 500 million user units and 400,000 administrative villages, empowering the digital transformation of the industry. China Mobile has built the world's largest optical network, covering more than 600 million households. China Unicom has plowed a gigabit optical network, covering 450 million households with fiber optic entry and more than 1.2 million whole-house optical broadband users, focusing on improving the digital governance capacity of cities. China Radio and Television (CRT) is based on TV service and broadband service, promoting the upgrading of backbone network as well as access network.
First, it introduces functions to meet emerging needs and builds industry-adapted and scenario-adapted gigabit optical networks. On the one hand, gigabit optical network has certain demand differences in different industry application scenarios. For different application scenarios, it is necessary to combine the business isolation, encryption transmission, visualization management and other needs of different scenarios, improve the differentiated and personalized network design capability, and realize resilient and reliable network bearing by combining edge computing, cloud, AI, 5G and other technologies. On the other hand, some of the industry application scenarios of gigabit optical networks are relatively similar or have a relatively high degree of standardization. For similar scenarios, it is necessary to refine a network design solution that can be replicated on a large scale and standardized, build a platform network management portal, and digitally empower network operation and maintenance.
Second, gigabit optical network to help the construction of smart cities gradually towards real-time control, the need to establish data as the new production factors of long-term operation mechanism. Smart city construction needs to be based on data to form the evolution from IOT to WIT, to achieve the quality of economic and social development and governance service level improvement. In this process, telecom operators need to work with the government and enterprises to build systems and standards for data circulation, openness and sharing, take into account data privacy and security protection, form a paradigm of "government-led, enterprise-led, local operation and ecological prosperity", promote the integration of data elements with other factors of production, and help the development of smart cities. Construction.
Third, to achieve a comprehensive transformation of the smart home business, from a single network connection business to a platform-based business jointly built by the cloud and network. Operators should continue to deepen the technology related to the smart home, strengthen the intelligent connection, intelligent perception, intelligent decision-making, intelligent interaction, data security and other aspects of technological innovation and application capabilities, focusing on the layout of platform applications and open capacity services, and promote the smart home business from a single broadband communication pipeline operation model, a comprehensive shift to the digital, intelligent, ecological platform system operation model built by the cloud and network together. By building smart home information solutions, operators can create a new smart home experience for users with "human-home-device-scene-platform" with senseless interaction along the whole chain.
Fourth, to build a new pattern of open ecology and collaborative development, through cooperation to further promote the sharing of contacts and collaborative development. Operators can take advantage of FTTR gigabit all-optical digital home base, with gigabit broadband and gigabit Wi-Fi as the leader, and continuously extend the product chain of smart home services. Based on user demand, joint industrial ecological partners expand gigabit scenarios to enhance digital home life experience. By exploring new operation systems such as terminal cooperation and service cooperation, we empower a variety of hardware forms and software applications to further build an integrated wisdom platform. On this basis, we will create an integrated smart home all-scene ecology focusing on emerging application scenarios such as elderly health, family education, whole-house intelligence, and cloud computers, and jointly create a portfolio of star smart home applications covering all scenarios, and continuously improve the integration operation capability of smart homes.
At present, China's gigabit optical network construction and deployment has entered a rapid development phase, and has achieved global leadership in four aspects: technology level, network capacity, industrial ecology, and user scale. As of the end of the first quarter of 2023, China has 110 million broadband gigabit or more users, 17.93 million 10G PON ports, gigabit optical network has the ability to cover more than 500 million households, the network scale and coverage level ranked first in the world. Currently, domestic telecom operators have focused on the new direction of Gigabit optical network technology evolution, and continue to explore the application of Gigabit optical network in different scenarios through research and development, trials to find new market opportunities and development paths.
Technology evolution direction of Gigabit optical network
Direction 1: All-optical transmission side from the basic bearer network to high-speed, high-capacity, high-quality service network gradually transformation, around the end-to-end flat network architecture of high-speed technology is constantly developing and evolving. At present, the industry accelerates the construction of 400G optical transport network, of which the short-range system has gradually matured, in the metropolitan scenario and part of the backbone scenario has begun commercialization; long-range and ultra-long-range system has carried out a series of experiments, and basically has the feasibility of commercialization. Currently, 800G, 1.6T optical transport network has become a key research direction, international and domestic standardization organizations have launched relevant research. IEEE, OIF and other organizations on 800G standards will soon be released, the relevant technology to 10km, 40km of the short and medium distance down. At the same time, the industry for 1.6T development needs, application scenarios and technical solutions are being further discussed, and the research and development of transceiver chips and other related products and standards are being carried out simultaneously.
Direction 2: In addition to the improvement of single-pass rate, the number of channels of the entire WDM can be increased by widening the transmission spectrum to achieve system capacity expansion and performance improvement. The C+L band can increase the transmission capacity by nearly one time, and the industry has developed C6T amplifier and L4.8T amplifier, and needs to promote the gradual maturation of optical amplifier and other optoelectronic device technology and industry to realize the spectrum expansion of 80×150GHz= 12THz ultra-wide spectrum range. In addition, in the future, with the optical transmission capacity is greater, S + C + L-band and other more spectrum expansion program will become an important direction for future evolution.
Direction three: access side around all-optical, ultra-broadband, differentiated and intelligent evolution and development. pon network evolution about every eight to ten years a generation, the current stage of 10G PON has been applied on a large scale. 2021 September, ITU-T identified 50G PON as the mainstream technology of the next generation of PON, and issued relevant standards to support the construction of 10 Gigabit broadband network. Currently, mainstream operators at home and abroad have chosen 50G PON as the next-generation technology research and development direction, and there is already a pilot application of 50G PON in 2023. In addition, the standardization work of ITU-T for FTTR has been officially launched, mainly containing network architecture, optical layer parameters, interaction protocols and remote management and other related standards. Relevant domestic experts participate in the development of some standards to promote FTTR to achieve gigabit optical access network to gigabit home network development.
Gigabit optical network enables B- and C-side diversified scenario applications
First, gigabit optical network supports the smart home to take the lead in landing applications and enhance the digital level of family life. FTTR's high performance, high reliability, and strong networking capabilities are well suited to the needs of network layer elements of smart home services. FTTR's high performance, high reliability, strong networking capabilities and other features are well suited to the needs of smart home and other services for the network layer elements, can truly achieve all-round coverage of gigabit broadband in all corners of the home, thereby enhancing the user experience of smart home products.
Secondly, the dual-gigabit synergy will gradually meet the network needs of industrial data convergence and precision manufacturing. Gigabit optical network is suitable for high performance demand in industrial fixed scenarios, while 5G is suitable for mobile objects with low latency requirements, such as AGV, intelligent storage and other scenarios. 5G and Gigabit optical network will further synergize for scenarios with low latency, large bandwidth, low jitter, large data particles and large quantities. This will realize the deep integration of IT and OT in industrial enterprises, and help enterprises build a flat and efficient industrial network at the end of the network, thus accelerating the digital transformation of enterprises.
Furthermore, gigabit optical network has a broad application space in various fields of society and people's livelihood, which can narrow the digital divide and promote the equalization of public services. Gigabit optical network has been the first to enter the scene landing and scale promotion stage in digital government, smart city, education and medical fields, while it is still in the industry exploration stage in agricultural informatization, helping rural revitalization, cultural tourism and other fields. In the future, gigabit optical network will be used in a broader range of people's livelihood inclusive application scenarios, helping to enhance the happiness and sense of access to people's lives.
Operator gigabit optical network business development suggestions
As the main force of network construction, operators continue to consolidate the new digital base of gigabit cities. China Telecom continues to carry out the construction of all-optical network, which has covered 345 cities, over 500 million user units and 400,000 administrative villages, empowering the digital transformation of the industry. China Mobile has built the world's largest optical network, covering more than 600 million households. China Unicom has plowed a gigabit optical network, covering 450 million households with fiber optic entry and more than 1.2 million whole-house optical broadband users, focusing on improving the digital governance capacity of cities. China Radio and Television (CRT) is based on TV service and broadband service, promoting the upgrading of backbone network as well as access network.
First, it introduces functions to meet emerging needs and builds industry-adapted and scenario-adapted gigabit optical networks. On the one hand, gigabit optical network has certain demand differences in different industry application scenarios. For different application scenarios, it is necessary to combine the business isolation, encryption transmission, visualization management and other needs of different scenarios, improve the differentiated and personalized network design capability, and realize resilient and reliable network bearing by combining edge computing, cloud, AI, 5G and other technologies. On the other hand, some of the industry application scenarios of gigabit optical networks are relatively similar or have a relatively high degree of standardization. For similar scenarios, it is necessary to refine a network design solution that can be replicated on a large scale and standardized, build a platform network management portal, and digitally empower network operation and maintenance.
Second, gigabit optical network to help the construction of smart cities gradually towards real-time control, the need to establish data as the new production factors of long-term operation mechanism. Smart city construction needs to be based on data to form the evolution from IOT to WIT, to achieve the quality of economic and social development and governance service level improvement. In this process, telecom operators need to work with the government and enterprises to build systems and standards for data circulation, openness and sharing, take into account data privacy and security protection, form a paradigm of "government-led, enterprise-led, local operation and ecological prosperity", promote the integration of data elements with other factors of production, and help the development of smart cities. Construction.
Third, to achieve a comprehensive transformation of the smart home business, from a single network connection business to a platform-based business jointly built by the cloud and network. Operators should continue to deepen the technology related to the smart home, strengthen the intelligent connection, intelligent perception, intelligent decision-making, intelligent interaction, data security and other aspects of technological innovation and application capabilities, focusing on the layout of platform applications and open capacity services, and promote the smart home business from a single broadband communication pipeline operation model, a comprehensive shift to the digital, intelligent, ecological platform system operation model built by the cloud and network together. By building smart home information solutions, operators can create a new smart home experience for users with "human-home-device-scene-platform" with senseless interaction along the whole chain.
Fourth, to build a new pattern of open ecology and collaborative development, through cooperation to further promote the sharing of contacts and collaborative development. Operators can take advantage of FTTR gigabit all-optical digital home base, with gigabit broadband and gigabit Wi-Fi as the leader, and continuously extend the product chain of smart home services. Based on user demand, joint industrial ecological partners expand gigabit scenarios to enhance digital home life experience. By exploring new operation systems such as terminal cooperation and service cooperation, we empower a variety of hardware forms and software applications to further build an integrated wisdom platform. On this basis, we will create an integrated smart home all-scene ecology focusing on emerging application scenarios such as elderly health, family education, whole-house intelligence, and cloud computers, and jointly create a portfolio of star smart home applications covering all scenarios, and continuously improve the integration operation capability of smart homes.