The 5G-Advanced network architecture has made great strides forward, forming a large version of the industry consensus: interpretation of the 28 standard topics of R18 on the SA architecture side! . The 3GPP SA 94-e meeting will be held online from December 9 to December 20, 2021. Through the collaborative efforts of industry partners, 28 projects for the first version of 5G-Advanced Rel-18 network architecture have been determined. SA/SA2 (System Architecture) is responsible for defining the end-to-end network architecture of the wireless mobile communication system. Key versions and features are often accompanied by the evolution and upgrade of the system architecture. The industry consensus of 28 projects has given high expectations to the network architecture R18, and the industry and standards of 5G-Advanced have entered the next stage. In April 2021, the official definition of 3GPP PCG 5G-Advanced sounded the charge in the industry for the establishment of R18 network architecture projects. In April 2021, some companies proposed the vision and key features of the R18 network architecture project. At the group meetings in 2021.5 and 2021.8, each company proposed its own key project directions from different dimensions of the industry. An R18 seminar was held in September 2021. Operators, equipment manufacturers, terminal manufacturers and chip manufacturers, vertical industry players, and industrial organizations such as 5GAA/5GMAG/5GDNA/5GACIA proposed nearly 50 project directions. It covers eMBB, IoT/passive IoT, industrial interconnection, broadband real-time interaction, communication perception fusion/positioning and other directions. After further discussions between 3GPP SA2 and SA and collaborative ranking by industry companies, 28 projects were finally determined. 1. Broadband real-time new media network architecture improves system capacity and user experience. In the 5.5G era, consumer video interactivity is a clear trend, which will bring about the next wave of video experience revolution. The commercialization of VR/AR and cloud games has developed rapidly, becoming a new killer application and traffic highland for mobile networks. The real-time new media network architecture enables media feature awareness, transmission enhancement, and multi-stream transmission coordination, guarantees the transmission of key messages within the flow with limited air interface resources, solves the problems of high bandwidth + low latency + low frame burst capacity, and greatly improves system capacity and user experience. Project Title RAN Impact FS XRM Architecture enhancement for XR and media services 2. The eMBB infrastructure continues to evolve, enabling better eMBB service experience. 5G s service-oriented architecture brings more evolution and enhanced flexibility to support the rapid deployment of more MBB services and experience improvement. Continuously improve the capabilities of 5G basic network architecture in multiple dimensions such as edge, slicing, capability exposure, and policies. EC edge capabilities support roaming and open more local capabilities. Network slicing better supports the network selection configuration of roaming users, and provides more flexible management and control of slicing under large network deployment. The real-time opening of the user plane UPF capability avoids roundabout routing of capability information reporting. Broadcast multicast supports inactive reception and multi-PLMN resource sharing under network sharing. Supports IAB mobility to meet more vehicle and other mobile scenarios. The evolution of network architecture continues to support non-3GPP access methods and offloading such as WiFi. Strategies on the terminal and network sides are better coordinated and controlled. Project Title RAN Impact FS eEDGE 5GC ph2 Enhancement of support for Edge Computing in 5G Core network - phase 2 FS eNS Ph3 Enhancement of Network Slicing Phase 3 FS UPEAS UPF Enhancement for Exposure And SBA FS eAMP Study on enhancement of 5G AM Policy FS SFC System Enabler for Service Function. Chaining. FS 5MBS Ph2 Architectural enhancements for 5G multi-t-broad t services Phase 2 FS VMR ARC Architecture Enhancement for Vehicle Mounted Relays FS 5WWC Ph2 5WWC, Phase 2 FS ATSSS Ph3 Access Traffic Steering, Switching and Splitting support in the 5G system architecture Phase 3. FS MPS WLAN MPS when access to EPC/5GC is WLAN FS PIN Arch Personal IoT Network architecture FS SUECR Seamless UE context recovery FS eUEPO Enhancement of 5G UE Policy FS AEUA Further Architecture Enhancement for UAV and UAM FS ARCH NR REDCAP Ph2 Enhanced support of NR RedCap with long eDRX for RRC INACTIVE state 3. The more powerful network intelligent brain 5.5G will continue to improve the data collection and analysis capabilities of the NWDAF network intelligent brain. Federated learning enables large-area deployment and multi-dimensional data integration, and enhances feedback and analysis recommendation closed-loop control of execution results. In terms of specific application scenarios, it supports encrypted traffic detection and analysis, finer-grained QoS analysis and prediction, etc. to solidify and deepen network automation and intelligence and support business implementation. For more AI/ML applications, QoS and policies will be used to ensure better exchange of AI/ML information between terminals and servers. Project establishment Title RAN Impact FS 5GAIML 5G System Support for AI/ML-based Services FS eNA Ph3 Enablers for Network Automation for 5G - phase 3 4. Improve positioning accuracy and reduce power consumption, enable campus positioning, and deeply integrate sidelink and Uu to expand new applications. The 5.5G industry needs to support high-precision and low-power positioning to meet the universal requirements of this vertical industry. The network identifies and controls positioning terminals and enables positioning data to not leave the campus through the network architecture. Combined with sidelink positioning to further improve positioning accuracy. Sidelink and Uu multi-path collaboration improves throughput and reliability to support applications in more industries. Project Title RAN Impact FS eLCS ph3 Enhancement to the 5GC LoCation Services Phase 3 FS 5G ProSe Ph2 System enhancement for Proximity based Services in 5GS - Phase 2 FS Ranging SL ARC Architecture Enhancement to support Ranging based services and sidelink positioning 5. The enhanced network capabilities of IIoT-Adv enable more ToB scenarios and services, continue to improve 5G's support for industrial interconnection and URLLC services, and open up new space in the field of intelligent manufacturing. The N3 interface is linked with transmission to ensure transmission certainty from the base station to UPF. Joint scheduling of air interface, N3, and services improves the air interface capacity of IIoT services and reduces end-to-end latency, enabling more industrial interconnection applications. More flexible and open 5GS synchronization capabilities, dynamic group management, and support for cross-data center/SMF local area LAN communication. A more flexible private network deployment method supports enhanced mobility between private networks and flexible UE network selection configuration. Study the adaptation of 5G networks to new industrial control protocols such as DetNet. Project Title RAN Impact FS 5GTTUe 5GTiming Resiliency and TSC&URLLC enhancements FS GMEC Generic group management, exposure and communication enhancements. FS DetNet Extensions to the TSC Framework to support DetNet FS eNPN ph2 Enhanced support of Non-Public Networks phase 2 6. IMS new calls improve user experience In the 5.5G era, operators build quick applications for operators' voice services based on the evolution of IMS networks. Based on the basic voice service experience, it provides high-definition, visual, interactive and reliable new 5G call services. Use the new dial pad entry for ToB calls to aggregate corporate users, support corporate traffic monetization, and open up new space for B-sides Project title RAN impact FS NG RTC System architecture for next generation real time communication services. 7. Satellite and cellular deep integration 5G evolution network architecture continues to support the deep integration of satellite and cellular networks. A set of network architecture seamlessly supports satellite access and satellite backhaul, continuing to expand 5G connections and industrial space. For IoT discontinuous coverage, enhance mobility management and reduce terminal power consumption. For satellite backhaul, it supports dynamic backhaul bandwidth and delay management, and supports UPF satellite launch. Project Title RAN Impact FS 5GSAT ARCH Ph2 5GC enhancement for satellite access Phase 2 FS 5GSATB Support of Satellite Backhauling in 5GS 28 architecture projects have a long way to go, and the next step will be the exciting and intense discussion and formulation phase of standardization plans. We believe that through continuous technological innovation and the collaborative efforts of all parties in the industry, 5G-Advanced will create a better intelligent world