5G移动信 无线架构-RAPP-CoDe-RAN Architecture.pptx

5G for people and things; 5G RAN Architecture Overview;Main drivers and use cases Key concepts Overall architecture User- and control-plane architecture LTE-5G and multi-RAT integration Multi-connectivity options Mobility concepts ;Main drivers and use cases;5G for people and things – diversity of use cases and requirements;Some push for centralization, other for distribution;;;Key concepts and objectives;5G Radio Architecture and network design principles;;Key concept: Network Convergence Sublayer;Key concept: Flexible Fronthaul Split;;Overall architecture concept;;MSM: Mobility and Session Management Entity uGW: User-plane GateWay 5G-NB: 5G-NodeB, radio, 5G-Uu termination X2*: Interface between 5G-NodeBs S1*-U: Interface for user-plane data towards uGW S1*-C: Enhanced control-plane interface For a detailed functional split description see [1] and [2] ;Logical architecture with Fronthaul Split;Support for Fronthaul Split and non-co-located User-plane offload;;Support for Cloud RAN;;Interface options for Fronthaul Split;5G Logical Architectural Framework for Fronthaul;;Multi-Service Support;Multi-service Multi-Connectivity support;Locally Switched Any-to-Any Connectivity Services below the uGW;Protocol Architecture;Key concept: Unified protocol stack for 5G air interface;Single common protocol for all radios: NCS (Network convergence sublayer) Flexible location, depending on deployment and requirements Multi-connectivity traffic handling for U-Plane and C-Plane: routing, splitting, duplication Common RRC for centralized control of multi-connectivity functions Reduce signaling and coordination complexity Flexibility for different multi-connectivity scenarios NCS as transport layer for signaling service flows Radio Convergence Sublayer (RCS) and Unified MAC Parameterizeable for 5G use cases and requirements based Optimized for parallel processing in Cloud Application control scheduling for QoE management and enforcement;NCS Key Functionality and Architecture Ch