5G NR Radio Protocol Stack (Layer 2 and Layer 3) September 4, 2017 July 10, 2020 Author 5G 3GPP has released specification 38.300 V1 this month about NR and NG-RAN Overall Description: Stage 2, This standard comes with the detailed descriptions about 5G NR network and Protocol architecture. The 5G Architecture Working Group as part of the 5GPPP Initiative is looking at capturing novel trends and key technological enablers for the realization of the 5G architecture. The Access Network transports NAS “transparently”. Demultiplexing of MAC SDUs from Transport Blocks (TB) delivered from the physical layer on transport channels. Your email address will not be published. Protocol Stack on different interfaces . The 5G protocol stack consists of Open Wireless Architecture, lower and upper network layer, open transport protocol and application layer. Addition, modification and release of carrier aggregation. I would not describe much details on each component of the protocol stack in this video. Mapping between logical channels and transport channels. layer 1,layer 2 and layer 3. NAS is a Control plane protocol. Ciphering, deciphering and integrity protection. Posted on 01. Open RAN network architecture is needed to address the specific needs of different mobile operators around the world and it is expected that vendors will interoperate to create customized Open RAN solutions to meet these requirements. Similar to 4G (LTE), depending upon the direction of data … 5G also comprises a next generation core network that is currently in the phase of development and standardization. The NAS is a control protocol which terminates in AMF on the network side. The 5G protocol stack architecture will discussed in detail; in particular differences with 4G, and what are the reasonable function splits in 5G RAN. The 5G Service-Based Architecture (SBA) is built on web technology and web protocols to enable flexible and scalable deployments using virtualization and container technologies and cloud-based processing platforms. 1.72. 5G NR User plane Protocol Stack is shown below : 5G NR Control plane Protocol Stack is shown below : These have been explained below with the figures. We can share our NR problems that we face everyday and help each other. 5G Protocol Stack - User Plane 5G Protocol Stack - Control Plane SDAP is the only new layer introduced in 5G. 5G RAN protocol stack. 5G NR Protocol Stack 5G protocol or NR protocol stack is very much similar to the LTE (4G) protocol stack. In this paper we propose new design framework for network architecture of future 5G mobile networks, including protocols and algorithms. 5G NR NSA ENDC Dual Connectivity Signalling end to end attach Call flow, How to Install libusb-0.1-4 package on Ubuntu or Linux. They have proposed about 8 possible options shown in below figure. The 5G network protocol stack consists of multiple layers, e.g., physical layer, radio resource control (RRC) layer, non-access stratum (NAS) layer, etc. Functional Architecture AndreaDetti 1 Introduction Before 5G, the design of cellular network architecture was centered on the end users. This figure below shows the control & user plane protocol stack of the X2 interface. Learn how your comment data is processed. GPRS Tunnelling Protocol for the user plane (GTP-U) tunnels user data between eNodeB and the S-GW as well as between the S-GW and the P-GW in the backbone network. So, if you know lte, then it will be easy for you to understand. GPRS Tunnelling Protocol for the user plane (GTP-U) tunnels user data between eNodeB and the S-GW as well as between the S-GW and the P-GW in the backbone network. This architecture model, which further adopts principles lik… The focus of 5G-MoNArch is about a flexible, adaptable, and programmable architecture for 5G. There can be multiple DU connected to each Centralized Unit (CU). 1.2.2.3.2 User-Plane Protocol Stacks. Security functions including key management. 3GPP has released TS 38.300 Rel 15 Ver 3.1.0 about NR and NG-RAN Overall Description: Stage 2, This standard comes with the detailed descriptions about 5G NR network and Protocol architecture. Click here for Initial Access and cell selection call flows in 5G NR Network. Please join our 5G forum and share your knowledge. This means eNB transfers NAS messages without interpretation. There are thousand of other experts are there to help you. 3GPP has defined a Higher Layer Split interface (F1), separating the Central Unit (CU) from the Distributed Unit (DU). Figure 5: Function migration from 4G to 5G . 3GPP has released TS 38.300 Rel 15 Ver 3.1.0 about NR and NG-RAN Overall Description: Stage 2, This standard comes with the detailed descriptions about 5G NR network and Protocol architecture. src="http://c.statcounter.com/4826252/0/9b97da5f/1/" href="http://www.statcounter.com/drupal/" Inter-slice control and cross-domain management, experiment-driven modelling and optimisation, native cloud-enabled protocol stack are innovative enablers for the sliced network. Posted on 01. 5G also comprises a next generation core network that is currently in the phase of development and standardization. LTE Protocol Stacks The figures below diagram the key protocol stacks on Uu, S1, and X2 interfaces for both C-plane and U-plane messaging. 5G Network Architecture. The protocol stack for the user-plane transport related to a PDU session is illustrated in Fig. The 5G layer-1 is PHYSICAL Layer. How paging are manages in 5g NR ENDC dual connectivity, What is the purpose of Non Zero and Zero CSI-RS. OWA stands for open wireless architecture layer which works as a physical layer and data link layer of the OSI stack. Two different protocol … How UE is Going To Get the SSB configuration in 5G NR? Basically, the user and control plane protocol stack are almost same as in LTE. 5G network architecture Figure-1 depicts 5G network architecture. The NG user plane interface (NG-U) is defined between the NG-RAN node and the UPF. End of this year first trial will start while commercial deployments using fully compliant equipment will start around 2020. NR Radio User plane and Control Protocol Stack is shown in below figures: Figure #1 […] The user plane protocols are PHY, MAC, RLC, PDC and SDAP and the control plane protocols are PHY, MAC, RLC, PDC, RRC and NSA. The SCTP layer provides guaranteed delivery of application layer messages. I would not describe much details on each component of the protocol stack in this video. The proposed design is … 5G Architecture. 5G/NR - Radio Protocol Stack Architecture Home : www.sharetechnote.com NR Radio Protocol Stack Architecture is almost same as LTE Radio Protocol Stack Architecture. L3 NSA level 5G protocol stack software enabling the base station's interactions with the mobile operator network core in non-standalone (NSA) mode and ensuring operation on top of the existing 4G network, which is essential for rapid deployment of 5G networks in the Russian Federation (Certificate issued on December 10, 2020). The transport network layer is built on IP transport. 5G NR Tutorial - Learn the concepts of 5G NR with this tutorial covering all the important topics from Introduction, Specifications, Features, Technology, Architecture, Protocol stack, Advantages, Challenges, Future Scope, and work. 3. The course provides a solid technical understanding of the different cellular technologies that are used in the mobile telecommunications industry today. For instance, 5G physical layer supports mobile broadband, massive machine type communication, and ultra- reliable and low latency communication for a wide array of devices and applications. For more info, you can read spec TS 23.501. Now let’s turn our focus to the 5G RAN protocol stack to outline the different parts where RAN processing is important. The following graphic shows the 4G RAN and core network as compared to the 5G RAN and core. 5G NR User plane Protocol Stack is shown below : 5G NR Control plane Protocol Stack … 5G Protocol Stack. Sassan Ahmadi, in 5G NR, 2019. UU User-plane : Radio interface user-plane carries, user Application traffic, which follows UU-U (Above)protocol stack. User-data is transparent to access nodes like gNB. Fig. UU Control-plane : in control plane RRC, PDCP, RLC, MAC, PHY get terminated at gNB, but NAS termination … We will discuss Access Network(AN) and Radio Access Network user and control plane protocol in 5G NR. If you are already familiar with LTE protocol stack or general concept of radio protocol stack, you would not need to spend too much time in reading this page. 5G-NR: Protocol Stack 3GPP has released specification 38.300 V1 this month about NR and NG-RAN Overall Description: Stage 2, This standard comes with the detailed descriptions about 5G NR network and Protocol architecture. Sequence numbering independent of the one in PDCP (only for Unacknowledged Mode (UM) and Acknowledged Mode (AM)). These have been explained below with the figures. That means wherever suitable the architecture elements are defined as network functions that offer their services via interfaces of a common framework to any network functions that are permitted to make use of these provided services. UE cell selection and reselection and control of cell selection and reselection. Its support for IMS includes also emergency and regulatory services specifics. The application layer signalling protocol is referred to as NGAP (NG Application Protocol). Functions are also same with some added features. Mapping between a QoS flow bearers to data radio bearer according to their quality of service requirements. The transport network layer is built on IP transport and GTP-U is used on top of UDP/IP to carry the user plane PDUs between the NG-RAN node and the UPF. Network repository functions (NRF) allow every network function to discover the services offered by other network functions. Mar, 2019 by Pankaj in 5G, NG Interface, NG-C, NG-U. With the help of the above figure, we can observe how the data flows through various protocol layers of 5G NR stack. Each layer in turn has its own protocols to implement its procedures, such as the protocols for connecting/disconnecting devices to/from the network and for paging devices to deliver notifications of incoming calls and SMS. 5G Protocol and Architecture. LTE Protocol Stacks The figures below diagram the key protocol stacks on Uu, S1, and X2 interfaces for both C-plane and U-plane messaging. Understand 5G network architecture and planning; Gain a solid foundation of HetNets and HetNet planning; Understand M2M/IoT technologies and its applications. Transfer of control plane data to lower layer. The 5G stage 2 level specifications include the overall architecture model and principles, eMBB data services, subscriber authentication and service usage authorization, application support in general, but also specifically for applications closer to the radio as with edge computing. PDCP PDU routing in case of split bearers. Multiplexing of MAC SDUs belonging to one or different logical channels into transport blocks (TB) and deliver to the physical layer on transport channels. While the split between CU and DU is now formally defined by 3GPP, there are a number of split options still to be considered for the DU/RU interface, which we will explore later. Priority handling between logical channels of one UE by means of logical channel prioritization. UU User-plane : Radio interface user-plane carries, user Application traffic, which follows UU-U (Above)protocol stack. Centralized Unit (CU) Supports following protocol layers SDAP (Only in caes of 5G, not present in 4G LTE) The main functions of NAS are authentication, mobility management and security control. Click to view enlarged image. OWA Layer: OWA layer is the short form of Open Wireless Architecture layer. The figure clearly explains the user plane and control plane protocols. 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