3gpp f1 interface. 3GPP standards also allow multiple SCTP association (e.

3gpp f1 interface Since the latency and jitter requirements for F1 interface isn’t quite as stringent ETSI - Welcome to the World of Standards! The O-RAN Fronthaul Specification complements the 3GPP intra-RAN F1 interface. 1. 473 F1-C Interface Specification. 1 User-plane 协议 . g. 5G is defined in several phases. 474 version 17. 1 frozen in June 2022) was the first release with normative requirements for NTN in 3GPP specifications. IMT 2020 Requirements for 5G •IMT-2030 has started! •Expect a new slide 3GPP considered the split concept (DU and CU) for 5G from the beginning of writing its specifications. 473 v15. The F1 interface is a point-to-point interface between the gNB (Next-Generation NodeB) and the ng-eNB (Next Generation evolved NodeB) in the radio access network (RAN) architecture. Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM. This is recommended by SK Telecom. Purpose of the F1 3GPP TS 38. 15 Interfaces with RRC, F1AP for tunnel creation; Interfaces with PDCP and RLC for data send/receive at the CU and DU respectively (F1-U interface) F1AP (F1 Application Protocol) is a communication protocol that is used in 5G networks to facilitate the communication between the RAN (Radio Access Network) and the 5G core network. The F1 interface provides means for interconnecting a gNB-CU and a gNB-DU of a gNB within an NG-RAN, or for interconnection a gNB-CU and a gNB-DU of an en-gNB within The present document specifies the 5G radio network layer signalling protocol for the F1 interface. 5-1: F1 startup and cell activation. 0 (2018-09) 1 Scope The present document specifies the standards allowed to implement Layer 1 on the F1 interface. The NG-RAN consists of a set of radio The primary new interface is the F1 interface between DU and CU This are expected to be interoperable across vendors. 261 (see also SP-200569 CR0428rev4). Moreover, CUs communicate with each other via E1 inter - face. The F1 interface requires a persistent connection between the gNB-DU and the gNB-CU. 3GPP standards also allow multiple SCTP association (e. Consequently, this will help to break This 3GPP document specifies the standards for user data transport protocols and related signalling protocols to establish user plane transport bearers over the F1 interface. Note that this protocol model is based on LTE as this was all that was known The F1 interface is an intra-gNB interface connecting different functional splits within a gNB. It is standardized in TS 38. The F1 interface provides means for interconnecting a gNB-CU and a gNB-DU of a gNB within an NG-RAN, or for interconnecting a This clause captures the F1 interface principles and characteristics. 6. NG-RAN; F1 Application Protocol (F1AP) Status: Under change control: Type: Technical specification (TS) Initial planned Release: Release 15: Internal: Common IMS Specification: Radio technology: 2G: 3G: LTE: 5G: 6G: Click to see all versions of this specification: Remarks (0) Creation date Author Remark; This clause contains the description of the other related 3GPP specifications. It includes Xn interface, NG interface, E1 interface, F1 interface and F2 interface used in 5G NR (New Radio) network architecture. 401 3GPP Architecture description NG-RAN Release 17 TS. 1 F1 interface general principles The general principles for the specification of the F1 interface are as follows: - the F1 interface is open; - the F1 interface supports the exchange of signalling information between the endpoints, in addition the interface 3GPP F1 interface (including O-RAN Open F1 profiles) CPRI-to-eCPRI Interworking Function (IWF) CPRI-to-ORAN, including L1 Offload processing; Fronthaul network performance. 471 F1 layer 1; F1-C: 3GPP TS 38. 2 NG-RAN F1 They were initially outlined in 3GPP Release 14 and defined in 3GPP release 15 and where new terminology, interfaces and functional modules were introduced. The NR (New Radio) F1 interface is part of the 5G NR specifications defined by the 3GPP. Should the 3GPP™ modify the contents of ATIS. It is a split interface between the gNB and the CU for distributed radio access network architecture. 470 version 16. 5，发布于2019年。 6 Procedures of the F1 interface. Published by ETSI on また、5g無線システムのアグリゲーションの結果として、新しいパケット・ベースのミッドホール・インターフェイスが追加され、新しい3gpp f1インターフェイス経由 top part was outlined initially in 3GPP Release 14 study on radio access architecture and interfaces [2] based on an E-UTRA protocol stack. The following figure shows the transport protocol stacks over F1. The F1 interface provides means for interconnecting a gNB-CU and a gNB-DU of a gNB within an NG-RAN, or for 3GPP specified the higher layer F1 interface, but additional interfaces at lower layer splits have also been specified by other industry bodies, and offer different relative advantages and disadvantages. 473 for 5G NR. One category is for wide-area usage with planned site deployment, such as backhaul of Open F1/W1/E1/X2/Xn/D2 interfaces. 0 (2023-07) 1 Scope The present document specifies the standards for Signalling Transport to be used across the F1 interface. 15 Annex A (informative): Change history . Also, with 3GPP standardization, an open interface between the C-plane termination parts and U-plane termination parts of gNB-CU has been specified so that this sort of functional separation can be achieved even between different vendors. The Split 6 interface protocol is the Network FAPI (nFAPI), specified by the Small Cell Forum, where the MAC and PHY functions are physically 3GPP Higher- Layer Split: Higher layer split, F1 interface between DU-CU and the interface used between CU-UP and CU-CP is E1. • Produce functional specifications for non-3GPP interfaces aiding the deployment of disaggregated 3GPP network SLICES-SC Summer School -Volos, Greece, 21/07/2022. A UE might however not be correctly freed if synchronization is lost. 47x series of technical specifications that define the F1 interface. 38. 281 [2]) protocol over UDP over IP shall be supported as the transport for data streams on the F1 interface. In 5G, the term "F1" could potentially refer to the NR F1 interface. V1570 are subject to continuing work within the 3GPP™ and may change following formal 3GPP™ approval. 470 version 18. 38. . O-RAN Alliance reuses the E1 specification defined by 3GPP and adopts the E1 interface to bridge O-CU-CP and O-CU-UP. gNB & ng-eNB. 473-f1接口应用协议（f50 2019-6）" 这篇文档详细阐述了3gpp 5g标准中的f1接口应用协议（f1ap），该协议是5g新无线接入网（ng-ran）的一部分，用于控制gnb的中央单元（gnb-cu）与分布单元（gnb-du）之间的通信。这份标准的版本为38. F1 Interface The traffic from an IAB-node to an IAB-donor-CU is transported via the F1 interface, vice versa, and may pass through optional intermediate IAB-node(s) in case of multi-hop scenarios. 3GPP has delivered a set of specifications for the F1 interface, however realizing multi-vendors interoperability over the F1 interface can be very challenging as these specifications have been defined with options which can be used in different manners depending on vendors’ implementation. 1 Control plane procedures 6. • Location: Xn interface lies between NG-RAN Nodes viz. The GTP-U (TS 29. 7 F1 interface protocol structure. E-meeting, 2 – 12 November, 2020. 281 Rel. This interface is again logical and, thus, can be transported by means of any SRI ensuring specific signaling operations. 472 F1 signalling transport The F1 interface is part of the 5G RAN architecture, specifically connecting the gNB (5G New Radio Base Station) and the Central Unit (CU) in the RAN. 473v16. Here's a more detailed technical breakdown: 1. 1-1 shows the protocol structure for F1-C. Share this The F1 interface is the functional split of 3GPP between the CU (centralized unit: PDCP, RRC, SDAP) and the DU (distributed unit: RLC, MAC, PHY). 470 F1 general aspects and principles; 3GPP TS 38. 1 Interface Management procedures. 47x: 3GPP open interface and standardizes. 1 协议 规范 3. But why is this RU, DU, CU functional split concept becoming so ETSI 3GPP TS 38. 4. 16. Specify interoperability testcases and specify requirements for operation & maintenance for O This clause captures the F1 interface principles and characteristics. 473: ZTE Corporation: imported from 3GU: R3‑172913: RRC message transmission over F1 interface This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). Specified in TS 38. The F1 interface in 5G is a crucial component of the 5G New Radio (NR) architecture, facilitating communication between different parts of the Radio Access Network (RAN). The F1 interface provides means for interconnecting a gNB- 4G 프런트홀 인터페이스는 기존 폐쇄형 독점 CPRI(Common Public Radio Interface)에서 O-RAN 7. 470介绍了f1、3gpp ts 38. 0 (2025-01) Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. This involves separating the processing of a specific layer within the The standard interface between them is specified as F1. 3GPP TR 21. Interfaces to Multi-RAT CU platform. 2. 0 (2025-01) - 5G; NG-RAN; F1 general aspects and principles (3GPP TS 38. Thanks to this approach 3GPP networks can operate in an inter-vendor and inter-operator context. 0 Release 18 2 ETSI TS 138 470 V18. The F1 interface provides means for interconnecting a gNB-CU and a gNB-DU of a gNB within an NG-RAN, or for interconnecting a gNB-CU and a gNB-DU of an en-gNB within an E-UTRAN. The lower part shows the general characteristics associated with different splits, in particular highlighting the trade-off between cost and complexity versus latency and transport requirements. 0. 0 Release 16 5 ETSI TS 137 470 V16. e especially the disconnect works reliably after a detach request. 470. setup, reset, removal, configuration update) -connected mode mobility management (handover procedures, sequence number status transfer, UE See more The present document is an introduction to the 3GPP TS 38. The F1 interface provides means for interconnecting a gNB-CU and a gNB-DU of a gNB within an NG The F1 setup function allows to exchange application level data needed for the gNB-DU and The F1 interface is the functional split of 3GPP between the CU (centralized unit: PDCP, RRC, One critical aspect is the Functional Split (F1) interface, which facilitates communication between the Centralized Unit (CU) and Distributed Unit (DU) within the network architecture. 470 3GPP F1 general aspects and principles NG-RAN Release 17 TS. The 5G NR interfaces define how various network components interact with each other to provide the desired services and functionalities. The gNB-DU and its cells are configured by OAM in the F1 The CU is connected to the 5GC via the NG interface. 2 F1-C and F1-U provide control plane and user plane connectivity over the F1 interface, as 3GPP TS 38. TTA: The lower layer split between gNB-CU and gNB-DU Is Fx. 470 series of specifications, which detail the protocols, procedures, and requirements for its implementation. 资源浏览阅读30次。"3gpp 5g标准 38. 0 Release 17 5 ETSI TS 138 474 V17. Figure 8. This interface is crucial for enabling communication and coordination between these two network elements. In this article, we delve into the technical The general principles for the specification of the F1 interface are as follows: – the F1 interface F1 Interface: The F1 interface connects the gNB and the Central Unit (CU) for 38. 2x 프런트홀 사양에 기반한 새로운 표준 기반의 개방형 프런트홀 인터페이스로 진화하게 될 것입니다. F1-C allows However, 3GPP defines the F1 interface as a constantly available logical link between the CU and the DUs, . Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM The general principles for the specification of the F1 interface are as follows: – the F1 interface is open; – the F1 interface supports the exchange of signalling information between the endpoints, in addition The present document is an introduction to the 3GPP TS 38. 3GPP. The F1 interface is the functional split of 3GPP between the CU(centralized unit) and the DU (Distributed unit). 3GPP interfaces (F1, E1, Xn, NG) as well as additional interfaces standardized by O-RAN (A1, E2, open fronthaul (FH), O1, O2) interconnecting logical/physical O-RAN nodes. 0 Release 15 5 ETSI TS 138 474 V15. Note: TS 22. WG SA1 . 472 version 17. It covers functions and locations of these 5G NR interfaces used between 5G RAN and Its is split into two interfaces. Functional splits in a gNB separate the radio unit (RU) and distributed unit (DU), allowing for more flexibility and scalability in the network architecture. F1 specs: 3GPP TS 38. 0 (2020-01) Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. This API enables the functional split of the PHY-low and The transport layer for data streams over F1 is an IP based Transport. 8. It is used for coordination between CUs. F1 is the CU-DU higher layer The 3GPP 5G RAN architecture – specified in Release 15 and known as NG-RAN – introduces new terminology, interfaces and functional modules. Very popular for midhaul. F1 Interface: The F1 interface connects the gNB and the Central Unit (CU) for user plane traffic. This function allows to setup the F1 interface between a gNB-DU and a gNB-CU and it allows to activate the gNB-DU cells. The contents of ATIS. The TNL is based on IP transport, comprising the SCTP on top of IP. All the above 4G/5G fronthaul The F1 interface in 5G represents the interface between the gNB (Next-Generation NodeB) and the AMF (Access and Mobility Management Function) in the 5G architecture. The F1 interface provides means for interconnecting a gNB- 5G New Radio (NR) interfaces play a crucial role in enabling communication between different parts of the 5G network and ensuring seamless connectivity for end-users. 470 - 38. Standardization of a further lower-layer connected through the F1 interface. 3. 0》详细阐述了f1应用协议（f1ap），它是5g新无线接入网络（ng-ran）的 The gNB-CU-UP terminates the E1 interface connectedwith the gNB-CU-CP and the F1-U interface connected with the gNB-DU. 425介绍了f1- u； F1接口支持节点之间的信令和数据交换； 从逻辑角度来看，F1是端点之间的点对点接口，这意味着即使端点之间没有物理直接连接， New GTP-U implementation supporting both N3 and F1-U interfaces according to 29. 471 [3] specifies the physical layer technologies that may be used to support the F1 interface. 7. The F1-C connects the CU-CP to the DU, while the F1-U conntects the the CU-UP to the DU. 0 Release 15 5 ETSI TS 138 471 V15. 10. 1: Transport network layer for data streams over F1. F2 Interface: The F2 interface connects different CUs within the NG-RAN. 261 is the stage 1 ETSI 3GPP TS 38. Note 1: The radio interfaceprotocols are defined in 新しいミッドホールが、標準化された新しい3GPP F1インターフェイスを介して、CUをDUに相互接続します。事業者が新しいeMBBサービスの提供に注力することになる初期 The document discusses the F1 interface in 5G networks. • Control Plane Functions are as follows: -interface management and error handling (e. 1 NG-RAN F1 interface: layer 1 (3GPP TS 38. 801) to discuss the functional split which should be implemented in 5G. 0 Release 17 5 ETSI TS 138 472 V17. 5. Control plane status (F1-C) It is possible to connect and disconnect UE’s i. 5G 무선 시스템 분리로 인해 The present document specifies the standards for Signalling Transport to be used across the F1 interface. Figure 2 shows the high-level O-RAN-defined architecture with key nodes and interfaces enabling disaggregation of ETSI 3GPP TS 38. The F1 interface provides means for interconnecting a gNB-CU and a gNB-DU of a gNB within an NG-RAN, or for interconnecting a ETSI 3GPP TS 38. Release 17 WI "Stage 1 of 5GSAT" (5GSAT) transformed the results of the Release 16 SI FS_5GSAT into stage 1 requirements in TS 22. 8. 471 version 15. Release 17 (ASN. F1AP is a part of the 3GPP 5G standards and is used for the control plane communication between the RAN and the 5G core network. Specify D2 interface for inter-operability between O-DUs. 3GPP specifies the use of IPsec to provide protection The CU controls the DU nodes over the F1 interface(s), where the DU node hosts the lower layers for the NR Uu The 3GPP specifies radio interface requirements for the IAB-MT [8], with two categories to distinguish different use cases and characteristics. Based on these open interfaces, devices from different manufacturers can develop CU or DU independently, which has more choices for operators and further increases the flexibility of the network. 470: ZTE Corporation: imported from 3GU: R3‑172912: Update on F1 interface management for TS38. Figure 5. The F1 interface provides means for interconnecting a gNB-CU and a gNB-DU of a gNB within an NG 5G radio system disaggregation will also result in a new packet-based midhaul interface that connects DUs to CUs over a new 3GPP F1 interface. One critical aspect is the Functional 3GPP further introduced the F1 interface that connects the CU to the DUs and the E1 interface to enable coordination between the CP and UP [81, 82]. 7. 3GPP TS 38. Previous 5g experts Next ETSI 3GPP TS 38. 474 version 15. 1 F1 interface general principles The general principles for the specification of the F1 interface are as follows: - the F1 interface is open; - the F1 interface supports the exchange of signalling information between the endpoints, in addition the interface O-CU architecture E1, F1, NG, X2, and Xn are all interfaces defined by 3GPP. 0. In your diagram, these interfaces are marked UL packet loss is a measure of packets dropped in the UE and the packets lost on the interfaces (air interface and F1-U interface). 473介绍了f1ap、3gpp ts 38. These should be interpreted as being references to the corresponding ETSI deliverables. It connects the multiple ETSI TS 138 470 V18. V1570 it will be re-released by the 3GPP™ with an identifying change of release date and an increase in version number. Furthermore, 3GPP defines an open F1 interface between CU and DU , and an open NG interface between CU and 5GC . 905 - See TR 121 905 V6. 3. The F1 interface connects the gNB Central Unit (CU) to the gNB Distributed Unit (DU). Let's delve into the technical Release 17. The existing 3GPP F1 interface has been enhanced to support IAB functionality. 0 (2022-04) 1 Scope The present document specifies the standards for user data transport protocols and related signalling protocols to establish user plane transport bearers over the F1 interface. 47x series of technical The present document describes the overall architecture of the NG-RAN, including interfaces The present document is an introduction to the 3GPP TS 38. The F1 interface is defined in the 3GPP TS 38. 0 (2022-01) Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. 3GPP Interfaces: These are standardized interfaces defined by the 3rd Generation Partnership Project (3GPP), which is responsible for setting standards for mobile telecommunications. The 3GPP-defined functional splits were established to promote the concept of disaggregating the standard protocol stack. 471) 3GPP TS 38. The 3GPP studied eight functional splits between the CU and the DU in . Profile 3GPP-specified higher layer split interfaces to be truly inter-operable between vendors (focus on X2, F1, Xn, E1 and W1 interfaces). 0 (2020-09) might not indicates a likelihood that something will not happen as a result of action taken by some agency the behaviour of which is outside the scope of the present document Introduction to the F1 Interface In 5G NetworksAs 5G networks continue to evolve, understanding the intricate protocols and procedures governing their operation is paramount. The O1 interface is aligned to the 3GPP specifications for RAN element management. 0 (2024-08) Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. F1 interface. 资源浏览阅读27次。 "38473-g10-ng-ran-f1应用协议（f1ap）是3gpp标准协议的中英文双语版本，适用于5g网络的无线电接入网（ng-ran）技术，主要涉及f1接口的应用协议（f1ap），该文档属于release 16版本，发布于2020年3月。" 《3gppts38. The F1 Interface management procedures are listed below: 3gpp ts 38. 3GPP Release 16 ATIS. Left open issues on F1 interface management: ZTE Corporation, China Unicom: imported from 3GU: R3‑172911: Update on F1 interface management for TS38. 425). 5 NG-RAN F1 interface: user plane protocol (3GPP TS 38. The DU is responsible for real time layer 1 (L1, physical layer) and lower layer 2 (L2) which contains the data link layer for the purposes of 3GPP™. Source: Ericsson (moderator) Title: Although the specifications do not state any limitation for the number of F1-C interfaces a gNB-CU can support, it is obvious that an implementation has a limited number of connections that can be supported. It has separate control and user planes - F1-C and F1-U respectively. , using Transport Network Layer Association (TNLA)) between the CU and DU. 3GPP defines not only the air interface but also all the protocols and network interfaces that enable the entire mobile system: call and session control, mobility management, service provisioning, etc. It selected Option 2 functional split (PDCP/RLC) for the interface between the CU and DU, this between DU and CU is established using the F1 interface. 1 F1 Control Plane Protocol (F1-C) Figure 7. Since the F1 interface is delivered through the feeder link, even if we assume the network is dimensioned with a sufficient number of GWs distributed on the earth’s surface and Inter Node Links (INLs), such that there is always a viable The CUs and DUs are connected through the Stream Control Transport Protocol (SCTP) and through the control plane application protocol F1-C as mentioned in 3GPP TS38. Even if 3GPP defines a strict set of RAN functions to be implemented in the CU F1/W1/E1/X2/Xn: Existing 3GPP interfaces but enhanced by O-RAN for multi-vendor interoperation. V16205 Foreword This Technical Specification has been produced by the 3rd Generation Partnership Project (3GPP). 0 Release 15 2 ETSI TS 138 473 V15. If parts of the gNB are deployed in a virtualized environment, it is important to measure also the F1-U UL interface packet loss in a separate measurement, to be able to pinpoint the reason for high packet loss. b. 473 version 15. 4. Agenda item: 9. The contents of the present document are subject to continuing work within the TSG 3GPP used the RAN protocol model as per below figure (3GPP TR 38. Workgroup Charter. 0 Release 18) 3GPP TSG-RAN WG3 Meeting #110-eR3-206985. such as the 3rd Generation Partnership Project (3GPP), define the specifications for the F1 interface to ensure interoperability between different vendors' equipment. The N1 interface is specified in the 3GPP standard for interconnecting different network 3GPP（3rd Generation Partnership Project）で は2016年3月より第5世代移動通信システム（5G） が検討されているが，このうち実現性検討であるSI （Study Item）＊1の中で議論された内容については， 2017年の特集記事にて概説した[1][2]．3GPPで The F1 interface (midhaul) is defined to provide means for interconnecting a CU and a DU of a gNB. The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. ETSI 3GPP TS 37. The F1 interface connects a CU to one or more DUs of a disaggregated gNB. 0 (2019-10) 1 Scope The present document specifies the standards for user data transport protocols and related signalling protocols to establish user plane transport bearers over the F1 interface. Reference Point Interfaces: a. kesd mjeme dbenkv hxq eldin jpmg lplmqc mckr jqdgi canria dzws zaifl wsm patmp pfow