[XGNews]: ZTE wireless intelligent layout Network — an interview with Mr. Gu Jun, chief Wireless Engineer of ZTE R & D planning

The following is the [XGNews]: ZTE wireless intelligent layout Network — an interview with Mr. Gu Jun, chief Wireless Engineer of ZTE R & D planning recommended by xgapn.com.

Mobile communication magazine   Liu Zongxiang

With the gradual scale and complexity of 5g commercial network, how to provide high-quality experience with the highest efficiency has become a key proposition to continuously develop 5g users, release 5g network potential and enhance 5g network value. However, the contradiction between the diversification of business, network, terminal and scene and the relatively fixed network resource strategy is becoming increasingly prominent. The traditional “one size fits all” resource allocation strategy centered on network quality can not accurately meet the needs of differentiated experience guarantee. Based on the endogenous intelligent architecture of the new generation of base stations, ZTE has launched a user centric solution driven by two wheels of user scheduling and network scheduling, which realizes the best balance between user experience and network efficiency through scenario based intelligent computing and accurate resource allocation, enabling high-quality 5g growth.

During the “5g Network Innovation Seminar (2021)” held on October 13, 2021, the reporter of mobile communication interviewed Mr. Gu Jun, chief Wireless Engineer of ZTE R & D planning, on ZTE’s wireless intelligent arrangement network. Now the relevant interview contents are summarized as follows for the readers.

Reporter: what is wireless intelligent network? What are the main architectures and functions?

Gu Jun: Based on the endogenous intelligent architecture of ZTE’s new generation BBU, the wireless intelligent orchestration network realizes user centered accurate resource allocation through four in one joint perception of terminal characteristics, network characteristics, business characteristics and cross domain characteristics, as well as scene Intelligent Computing and decision-making. Wireless intelligent scheduling network includes network scheduling at macro level and user scheduling at micro level. User scheduling takes users as the object to realize users’ intelligent guidance and intelligent scheduling in multi-layer network; The network arrangement takes the network as the object, which can realize the intelligent allocation of network resources such as multi-standard shared spectrum, TDD frame structure, massive MIMO beam and so on.

Reporter: under what background was the wireless intelligent choreography network developed?

Gu Jun: in the 5g era, under the realistic background of increasingly diversified networks, services and terminals, the traditional “one size fits all” network resource allocation strategy centered on network quality can not accurately meet the differentiated experience support needs brought about by business diversity, such as under guarantee and over guarantee in TOC and tob networks. In order to better serve the differentiated needs and businesses of more users in complex and changeable network scenarios and limited network resources, it is necessary to transform from network centered resource allocation strategy to user centered precise resource service mode. ZTE actively embraces the huge challenge brought by 5g multi repetition and complexity to the migration from network centralization to user centered precision service paradigm, and puts forward the industry’s first wireless intelligent orchestration network solution based on the endogenous AI computing power and orchestration engine of communication base stations, based on the accurate cognition of differentiated scene characteristics and personalized business needs, Provide user-centered adaptive flexible scheduling service of network resources to realize the best unity of user experience and network efficiency.

Reporter: what is the mechanism and operation mode of user arrangement and network arrangement?

Gu Jun: firstly, the user arranges the wireless network capability into the logical grid representing the wireless environment, establishes the grid knowledge base, including coverage capacity, spectrum efficiency, load and other information, and determines the network capability provided by different grids; Then, through the business knowledge base, that is, the intelligent learning of business types and sending characteristics, the user needs can be accurately identified and predicted; Finally, combined with the ability of the terminal, a targeted strategy matching is formed to accurately guide users to the grid that meets the experience prediction. Network arrangement is to form a grid with base station cluster as a unit, and form a capability set based on frequency band, system, bandwidth, frame structure and other elements in the grid. With the development of network and the birth of services, the capability set grows. Through self-learning and intelligent prediction of the traffic demand in different periods in the grid, the grid capacity under different resource combinations is matched, so as to form an adaptive grid resource scheduling strategy and optimize the grid service capacity.

Reporter: at present, is there a commercial landing case of wireless intelligent choreography? How about universality? What’s the effect?

Gu Jun: the wireless intelligent scheduling scheme has been widely commercially verified by three major domestic operators. Tests in Liaoning, Yunnan, Sichuan and Guangdong show that the scheme fully demonstrates the dual value of user experience and network efficiency with 300% + edge rate enhancement, 50% + delay reduction and 10% + spectrum efficiency improvement, It has laid a solid foundation for further large-scale commercial use and meeting the common needs of efficient spectrum sharing and multi-layer network accurate experience collaboration in the global 5g development.

Reporter: with the scale deployment of 5g network and the introduction of 700m and 2.1g FDD NR spectrum, how to deal with the wireless intelligent scheduling scheme and improve the user experience and network efficiency?

Gu Jun: with the introduction of China Mobile 700m and ITU 2.1g multi-layer 5g network, the wide application of wireless intelligent scheduling scheme will further promote the transformation of 5g network to more quality growth. Among them, network scheduling is based on Intelligent cluster spectrum scheduling technology, breaking through the dilemma of selecting one of the current spectrum application modes, Automatically realize the automatic adaptation of 40m NR / 20m NR / 20m NR + 20m LTE and other states under different traffic and interference scenarios, maximize 5g experience without affecting 4G services, improve the utilization efficiency of spectrum resources, and automatically evolve to 40m pure 5g network; User scheduling technology, through the dynamic prediction of 700m network interference and expected experience level, effectively avoids migrating 5g users to 700m cell with strong signal but poor experience, and enhances user experience and network traffic through accurate and agile inter layer collaboration.

Reporter: what are the current intelligent choreography schemes? How to improve the intelligent layout scheme to fully serve the B2C and B2B markets.

Gu Jun: the wireless intelligent layout scheme is generally divided into network layout and user layout. The network layout includes spectrum layout, frame structure layout, beam layout, slice layout, etc; User scheduling includes intelligent guidance and intelligent scheduling. In the future, we will further expand the capabilities of network + user joint arrangement, tob + TOC joint arrangement and end-to-end joint arrangement, so as to realize the scenario resource arrangement driven by intention, accurately adapt the differentiated business needs in TOC and tob networks with the highest network efficiency, and promote quality 5g growth.

Reporter: how does ZTE push the intelligent layout scheme to a wider range of business in stages and steps?

Gu Jun: ZTE’s wireless intelligent layout scheme closely fits the core demands of 5g network development in different periods for commercial empowerment. In the commercial stage of CMCC 2.6g NR and ITU 3.5G NR single-layer 5g networks, the massive MIMO beam arrangement aiming at minimal three-dimensional coverage is combined with user arrangement driven by experience to realize the balance and optimization of 5g shunting capacity and business experience; After the introduction of new 5g network layers such as ITU 2.1g and mobile 700m, the intelligent scheduling scheme has low-cost, high-performance, self-organizing spectrum scheduling ability and accurate and efficient user scheduling ability, so as to realize the accurate experience collaboration and network efficiency improvement of multi-layer networks; When the network gradually develops to the stage of fine operation, intelligent orchestration further realizes the multi-dimensional collaborative optimization of user experience, spectrum efficiency and network energy consumption through scenario driven flexible orchestration, so as to promote the sustainable development of the network.

Reporter: what is the future evolution direction of wireless intelligent choreography?  

Gu Jun: the wireless intelligent layout scheme with excellent user experience and network efficiency will become the core value engine for 5g to enter the stock era and deeply release the network potential. Facing the future, the wireless intelligent choreography network will further focus on the network evolution requirements of excellent experience, high efficiency, low energy consumption and easy operation and maintenance, combined with the latest development of intelligent technologies and architectures such as intention network, digital twin and heterogeneous computing, continue to improve and expand the “metacognition” level of 5g network self-understanding and user-centered scene accurate service ability, and “sail” in the “sail” Under the guidance of the plan and the “double carbon” strategy, we will continue to enable the green digital economy.

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