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E utra nr dual connectivity

e utra nr dual connectivity There are different ways to increase the 5G throughput such as: • increase number of CA carriers • enhance the coverage using lower-frequency carrier as supplementary uplink (SUL) in addition to NR’s DC architectures include, for example, those that adhere to the Evolved Universal Terrestrial Radio Access (E-UTRA) – New Radio (NR) — Dual Connectivity (EN-DC) protocol. In 3GPP Release 15, dual connectivity can involve two NR base stations (NR-DC) or one NR and one LTE base station (Multi-Radio-DC or MR-DC). 1 General 4. Only LTE is considered for possible multi-radio connectivity with NR. This is a preview of subscription content, log in to check access. 4. With EN-DC, Long-Term Evolution (LTE) connections under E-UTRA for a first technology are expected to abide by antenna switch diversity algorithms to provide access to EN-DC E-UTRA NR Dual Connectivity (in RAN connected to EPC) eLTE LTE in NG-RAN connected to 5GC EPC Evolved Packet Core, 4G packet core EPS Evolved Packet System consist of EPC and LTE RAN gNodeB Node providing NR user plane and control plane protocol terminations towards the UE HSS Home Subscriber Server in 4G IMS IP Multimedia Subsystem Multi-RAT Dual Connectivity with LTE Core (EPC) • Dual Connectivity with EPC: E-UTRA-NR Dual Connectivity (EN-DC) • Master Node: eNB (LTE) • Secondary Node: gNB (5G NR) x2 interface No load-sharing PDCP split NR-U (WI): SCENARIOS Keysight World: 5G NR Standards Scenario Description A Carrier aggregation between licensed band NR (PCell) and NR-U (SCell) B Dual connectivity between licensed band LTE (PCell) and NR-U (PSCell) C Stand-alone NR-U D A stand-alone NR cell in unlicensed band and UL in licensed band E Dual connectivity between licensed band 5G NR NSA options 4&7 Rel-15 ASN. UE is connected to NR and LTE simultaneously. In addition, it is a multi-mode modem that utilizes major networks from 2G to 4G LTE for reliable mobility anywhere. RAT interworking in 5G and beyond networks: As a starting point for multi-radio interworking, the 1st phase of 3GPP NR provides multi-RAT dual connectivity (MR-DC). Xn interface between eLTE eNB and gNB, 3GPP has defined a number of options for the NR addition (See See TR 38. Similar variations of routing user plane traffic involving 5G Core give rise to options 4a, 7a NGEN-DC - NG-RAN – E-UTRA Dual Connectivity NGEN-DC is a Dual Connectivity configuration utlizing the 5GC, whereby the master RAN is a 4G ng-eNB and the secondary RAN node is a 5G gNB. In this option, commonly known as EN-DC (LTE-NR Dual Connectivity), a UE is connected to an eNB that acts as a MN and to an en-gNB that acts as a SN, see Figure 3. The IAB-node can access a network using either Stand-Alone (SA) or Non-Stand-Alone (NSA) modes. 5. Establishment, configuration, maintenance and release of Signalling Radio Bearers (SRBs) and Data Radio Bearers (DRBs). Of the two nodes, one acts as a Master Node ÜMNÝ and the other as a Secondary Node ÜSNÝ. For efficient location services, the chipset comes with a 4-mode GNSS (Global Navigation Satellite System) receiver that supports GPS, GLONASS, BeiDou, and Galileo. ng-eNB. GNB terhubung ke 5GC dan ng-eNB terhubung ke gNB melalui antarmuka Xn. Parente, Carlos F. Ans. 55 Gbps. 11ax which aims to provide faster speed and greater stability for seamless online gaming and smooth high-resolution perform load balancing and mobility management e ectively. 5G NR via E-UTRA-NR Dual Connectivity (EN-DC) Jun 18 – Full Release (Standalone – SA) • Frequency Bands5G Next Generation Core Network (5GC) • Architecture Options 2 & 5 (Standalone) • Remaining features (Network Slicing, others) • Separation of NR Control Plane (CP) and User Plane (UP) for Split option 2 (Higher Layer Split – PDCP) According to the press release, EN-DC refers to Evolved-Universal Terrestrial Radio Access-New Radio, which was introduced in 3GPP Release 15, and includes E-UTRA NR Dual Connectivity. g. NR-E-UTRA Dual Connectivity: NG-RAN supports NR-E-UTRA Dual Connectivity (NE-DC), in which a UE is connected to one gNB that acts as a MN and one ng-eNB that acts as a SN. Multiple Input Multiple Output (MIMO) and Antenna Implications First, NSA solutions based on dual connectivity (EN-DC, E-UTRA-NR Dual Connectivity), which channel signaling through eNB and the data through gNB. • Supports E-UTRA-NR Dual Connectivity (EN-DC) {LTE and 5G connectivity} • Couples with Exynos 990 (AP) • Dual (Custom CPU) + Dual (A76) + Quad (A55) • Dual-core NPU E-UTRA NR dual connectivity with MCG using NR and SCG using E-UTRA: NGAP: NG Application Protocol: NGEN-DC: E-UTRA NR Dual Connectivity with E-UTRA connected to 5GC: NR: NR Radio Access: NR/5GC: NR connected to 5GC: NR-DC: NR-NR Dual Connectivity: NUL: Normal Uplink: NZP CSI-RS: Non-Zero Power CSI-RS: OFDM: Orthogonal frequency division Radio Protocol Architecture_User Plane 2/3 4G LTE 5G NR The protocol stack for the user-plane, where PDCP, RLC and MAC sublayers The protocol stack for the user plane, where SDAP, PDCP, RLC and MAC sublayers (terminated in eNB on the network side) perform functions for the user plane, (terminated in gNB on the network side) perform functions e . e. The main point where CA and DC differ is in their application scenarios and implementation. 34 0) • MR-DC: two different nodes connected via non-ideal backhaul, one providing E-UTRA access and the other one providing NR access – One node acts as the MN and the other as the SN – The MN and SN are connected via a network interface and at least the MN is conne cted to the core network • MR-DC with the EPC – E-UTRAN supports MR-DC via E-UTRA-NR Dual Connectivity (EN-DC) [Option 3] • A UE is connected to one eNB that acts as a MN and We finally turn to the en-gNB. The present document provides an overview of the multi-connectivity operation using E-UTRA and NR radio access technologies. – Define equivalent and aligned TDD frame configurations between NR/NR and NR/LTE (i. This solution provides enhanced EN-DC features that enable data streams to be split adaptively between 4G and 5G based on network coverage. 1Gbps in sub-6GHz setting with up to 8x carrier aggregation. 5G NR bands . The first 5G NR networks are on-air using network deployment option 3X and utilizing E-UTRA New Radio Dual Connectivity (EN-DC) with a split bearer setup. Finally, migration strategies proposed by vendors and operators (MNOs / SPs) have been discussed. In addition, the processor supports a new Wi-Fi 6 standard, IEEE 802. Message Path LTE SIB2 └PLMN 5G UE RRC states concerning NR/5GC, E-UTRA/EPC and E-UTRA/5GC. It provides higher data rates, lower latency and is optimized for packet data. 1Gbps in sub-6GHz • The new Huawei Kirin 990 5G chipset • Includes integrated 5G modem that provides 2. 5G Access Network options: NR, E-UTRA, WiFi, Fixed Access. The signaling procedures for dual connectivity between multiple RATs are standardized, and a common interface for communication be- A UE, compatible for NR-to-NR dual connectivity, may receive a transmit power configuration and a power allocation configuration. 0 (2018-03), so where does it fit in? The answer has to do with EN-DC or E-UTRA New Radio Dual Connectivity option for rapid deployment of 5G for current operators of 4G LTE Dual Connectivity with EPC SGW VoLTE PGW eMBB Bearer Splitting • Used in scenario where LTE coverage reach is superior to that of NR and leverages EPC • LTE eNB acts as Master and controls which S1-U bearers are handled by each radio( LTE/NR) • Based on LTE eNB instructions MME informs S-GW where to establish S1-U bearers towards i. In the ENDC configuration, the gNB works as a Secondary Node (SN) for an LTE eNB, which acts as Master Node (MN) and is connected to the Core Network. UE向MeNB发送测量报告消息。 The modem supports blazingly fast download speed of up to 7. Here, on the left side, you see NSA control plane. Mobility functions like Handover and context transfer. Details of the network and radio interface protocols are specified in companion specifications of the 36 and 38 series. com/course/5g-basic/EN DC What is EN DCE-UTRAN supports MR-DC via E-UTRA-NR Dual Connectivity Terrestrial Radio Access (E-UTRA) – New Radio (NR) — Dual Connectivity (EN-DC) protocol. * * Reference: 3GPP TS 36. This calls for the enhancements within LTE to support e. 2 References E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of 3 bands LTE inter-band Carrier aggregation (CA) (3 Down Link (DL) / 1 Up Link (UL)) and 1 NR band (1 DL / 1 UL) TR 37. 55Gbps in 5G connectivity for sub-6GHz spectrums and 1. Rodrigues, Tarcisio F. 4G/5G Migration Strategies. e. LTE connectivity to 5G-CN does not only permit RAN level interworking but gives a migration path where the core network is 5G-CN whereas the radio remains LTE. 300 [2], where a multiple Rx/Tx capable UE may be configured to utilise resources provided by two different nodes connected via non-ideal backhaul, one providing NR access and the other one providing either E-UTRA or NR access. E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of LTE 4 Down Link (DL) / 1 Up Link (UL) and 1 NR band: Status: Under change control: Type: Technical report (TR) Initial planned Release: Release 15: Internal: Common IMS Specification: Radio technology: 2G 3G LTE 5G: Click to see all versions of this specification This is called "E-UTRA-NR Dual Connectivity. Like Carrier Aggregation, it also aims to increase the throughput of the UE by utilizing resources from multiple carriers. ➨ Security related functions including key management ➨ Establishment, configuration, maintenance and release of SRBs (Signaling Radio Bearers) and DRBs (Data Radio Bearers). E-UTRA NR 4G LTE EPC 5G NG CN 5G FR2 NR CP UP UP UP 23dBm+26dBm 40dBm 40dBm Fig. This feature allows mobile device to exchange data between itself and NR base station along with simultaneous connection with LTE base station. An en-gNB is different from agNB in that it only implements part of the 5G base station functionality that is required to perform SN functions for EN-DC. " To top it off, the Exynos 980 will support Wi-Fi 6. 28Gbps, and a download speed of up to 2. 38Gbps, thanks to E-UTRA-NR Dual Connectivity that combines 5G and LTE networks. 801). The early drop in December 2017 which included E-UTRA-NR Dual Connectivity and EN-DC, the focus on standalone NR in June 2018, and the late drop in March 2019 which introduced other architecture options. W e note that, in case of EN- DC, this is the first time that a DC scenario is being enabled E-UTRAN supports MR-DC via E-UTRA-NR Dual Connectivity (EN-DC), also called MR-DC with EPC, in which a UE is connected to one eNB that acts as a MN and one en-gNB that acts as a SN. This and three other options described below are grouped in MR-DC (Multi-Radio Dual Connectivity). * * True the primary serving cell is LTE cell and the plmn-InfoList-r15 is present in SIB2 and * at least one bit in this list is true, otherwise this value should be false. LTE E-UTRA operating bands for Dual Connectivity Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM E-UTRA dual connectivity is designed to operate in the operating bands defined in below table. In this configuration, only the 4G services are supported, but enjoying the capacities offered by the 5G NR (lower latency, etc). Massive MIMO Operation. Multi-connectivity extends the DC principle in the form of simultaneous connectivity to Early 1990s: 2G introduced digital voice (e. g. Third generation - 3G Early 2000s: 3G brought mobile data (e. Trials started in 2008. One of the most important functionalities for the dual connectivity (DC) technology in non-stand-alone (NSA) fifth generation (5G) networks is the flow control algorithm (FCA), which has the role of correctly splitting the data traffic of users in DC. RAN bases Dual Connectivity procedures. Beam Management in NR. As part of enabling this dual connectivity, an E-UTRA base station determines the dual-connectivity capabilities of a UE. 3 MDT 4. For LTE-NR Dual Connectivity (EN-DC) the initial access and mobility are done on LTE Primary Cell (PCell) and NR Carrier Component (NR CC) will be added or released as Secondary Cell (SCell) as part of Non Standalone (NSA) operation, while in Stand Alone (SA) mode all the operations will be done directly on NR Primary Cell. ENCD stands for E-UTRA-NR Dual Connectivity (EN-DC), in which a UE is connected to one eNB that acts as a MN . 1G, 2G, 3G, and 4G all led to 5G, which is designed to provide more connectivity than was ever available • 7. The eNodeB is connected to the EPC through the S1 interface and to the en-gNB through the X2 interface. , RAN, Evolved Universal Terrestrial Radio Access Network, E-UTRAN, 5G NR RAN or NR RAN). In this deployment scenario, the so-called non-standalone (NSA) mode, an LTE anchor is required to exchange control and signaling information. Second, because the LTE macro layer is likely to be used for a while (depending on specific markets) as the coverage blanket between mmWave hot spots, until sub 6GHz 5G NR solutions are fully Dual connectivity E-UTRA New radio Non-standalone Edge User Equipment (UE) Supported by Nokia Bell Labs, Beijing, China. さらなる高速大容量化を実現するキャリアアグリゲーション高度化およびDual Connectivity技術 ツイート 3GPP Release 10において、LTE-Advancedの特長となる機能として仕様化されたCAは、ユーザスループットを向上する技術として世界的に商用導入が進められている。 Dual connectivity (DC): Background • NR-NR DC not supported by the June 2018 version 5G NR Spec in RAN5 •TS 36. Source: Adapted from ETSI 2021a, fig. 55Gbps,” which is just awesome. This option is called EN-DC (E-UTRA-NR Dual Connectivity). 1 for option 4&7 5G Rel-16 Stage 3 completion First 5G launches Several 5G launches E-UTRA NR EPC 3A E-UTRA NR EPC 3 E-UTRA NR EPC 3X NR NR 5GC 2 E-UTRA NR 5GC 4 E-UTRA 5GC 7X NSA 3x and SA 2 options will be first deployments in 5G networks NSA 3x SA 2 Note: NSA 3x device is not forward compatible with SA 2 This includes addition, modification and release of CA (carrier aggregation) and Dual connectivity in NR or between E-UTRA and NR. The rollout is also supported by the use of E-UTRA (Evolved Universal Terrestrial Radio Access) NR Dual Connectivity (EN-DC) combinations where NR is always associated with an LTE link. 4. In Release 15, LTE air interface is comprehensively enhanced, capable of supporting E-UTRA-NR Dual Connectivity (EN-DC) and LTE connection to 5G Next Generation Core (NGC). QoS Architecture in 5G NR. Given the above, SA2 would like to kindly ask for any feedback from GSMA FNW and NGMN on requirements and granularity for Service indicators and/or RAT indicators related to 5G. Given the above, SA2 would like to kindly ask for any feedback from GSMA FNW and NGMN on requirements and granularity for Service indicators and/or RAT indicators related to 5G. , NR-E-UTRA Dual Connectivity (NE-DC), NG-RAN E-UTRA-NR Dual Connectivity (NGEN-DC) and NR-NR Dual Connectivity (NR-DC)). NC. NEF: Network Exposure Function: ng-eNB. • gNB Node B that used the NR Radio Access Technology – en-gNB - Node B that uses NR for E-UTRA-NR Dual connectivity. The modem also supports E-UTRA-NR Dual Connectivity (EN-DC), which combines 5CC LTE and 5G connectivity to maximize mobile downlink speed of up to 3. System Information parameters and UE radio capabilities related to IMS and 4G/5G interworking. The MN is connected with the SN and 4G/5G CN. 3GPP Release 16 (Rel-16) served to broaden the use cases where NR can be applied as well as improve capacity and performance of the system In June 2018, 3GPP Release 15, the first version of 5G NR standards, was frozen, marking a milestone in the communications history. Dual Connectivity, CA variants:-up to 5CC, FDD and/or TDD-intra-/ inter-band, (non)-continuous,-Co-located, RRH-asymmetric DL/UL Massive CA (32CC), LAA (5GHz), LWA, eLWA, SDL for CA: 2. E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of LTE 3 Down Link (DL) / 1 Up Link (UL) and 1 NR band: Status: Under change control: Type: Technical report (TR) Initial planned Release: Release 15: Internal: Common IMS Specification: Radio technology: 2G 3G LTE 5G: Click to see all versions of this specification VOICE OVER NR –BEARER + IMS ASPECTS VoNR targets for standalone (option 2), dual connectivity is possible gNB 5GC AMF UPF IMS DNN/APN IMS HOS/DNN UM DRB with 5QI = 1 (conversational voice) UM DRB with 5QI = 2 (conversational video) AM DRB with 5QI = 5 (IMS SIP signaling) AM DRB with 5QI = 6-9 (non-GBR video) 1 or 2 IMS registrations: Release 16 NR Main Work Item • NR eMIMO • NR in unlicensed spectrum • Dual Connectivity and Carrier Aggregation enhancements • NR UE power consumption • eURLLC (PHY centric), • NR Industrial IOT –eURLLC but L2/L3 centric • Integrated Access and Backhaul (IAB) • NR V2X. Experience Integrated access Multi-connectivity 3GPP TS 37. With EN-DC, Long-Term Evolution (LTE) connections under E-UTRA for a first technology are expected to abide by antenna switch diversity algorithms to provide access to each of the available NG-RAN – E-UTRA Dual Connectivity NR New Radio NR New Radio NSA Non StandAlone OCS Online Charging System PCRF Policy and Charging Rules Function PDCP Packet Data Convergence Protocol PDN Packet Data Network PGW PDN Gateway POP Point of Presence PRACH Packet Random Access Channel PTP Point to Point The present document provides an overview of the multi-connectivity operation using E-UTRA and NR radio access technologies. AI is front and center in the Exynos 980 as well, with a neural processing unit (NPU) built into Unlike HSPA, LTE's E-UTRA is an entirely new air interface system, unrelated to and incompatible with W-CDMA. One eNB can be connected to many gNB and vice versa Non-Standalone Base Station Architectures using the 4G Core Network (Options 3,3a and 3X) In both cases, Read More › These options are known are NGEN-DC (NG-RAN E-UTRA – NR Dual Connectivity). Maciel, Fco. Here NR MN is the case for NR dual connectivity which is applicable for SA case. NGEN-DC. The attribute “ LTE connectivity to 5G-CN” or the E-UTRA connected to 5GC. With the introduction of 5G NR, 3GPP introduced four configurations for MR-DC: one MR-DC with EPC (E-UTRA-NR Dual Connectivity (EN-DC)) and three MR-DC with 5GC configurations (i. In the NSA architecture, EN-DC (E-UTRA-NR Dual Connectivity), NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity) and NE-DC (NR-E-UTRA Dual Connectivity) has been looked at. 1-2. 5G NAS message transport NR-LTE co-existence Network slicing, SON, PWS, IMS CU-DU split E-UTRA-NR DC Intra NR Carrier aggregation & Dual connectivity New NR Study Items (earliest start in Q4 17) Non-Terrestrial Networks Unlicensed spectrum Integrated Access & Backhaul (IAB) Non-orthogonal Multiple Access V2X Scope of NR Phase 1 WI 3GPP TS 38. Combined with the availability of new bands in FR2, EN-DC provides an attractive option for a seamless introduction of NR on top of existing LTE deployments. • Includes new Samsung Exynos 5123 5G Modem supports E-UTRA-NR Dual Connectivity (EN-DC) that provides 7. g. This architecture seamlessly integrates multiple RATs for dual connectivity and de nes a uni ed interface for commu-nication between RAN and core network. In NSA mode, E-UTRA-NR Dual Connectivity (EN-DC) is used. 340: Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Multi-connectivity; Stage 2 CU Control User Plane Separation 3GPP TS 23. 0Gbps for 4G mobile DC can involve using two different wireless technologies, such as a first technology and a second technology. 2 References Dual connectivity (DC) band combinations of LTE + NR carriers eNb gNb LTE anchor carrier 5G carrier Carrier aggregated data pipe Dual Carriers Display All FDD TDD n1 n2 n3 n5 n7 n8 n12 n13 n14 n18 n20 n25 n26 n28 n29 n30 n34 n38 n39 n40 n41 n46 n48 n50 n51 n53 n65 n66 n70 n71 n74 n75 n76 n77 n78 n79 n80 n81 n82 n83 n84 n86 n89 n90 n91 n92 n93 It offers support to optimization tools (e. NR-E-UTRA Dual Connectivity. The Dual Connectivity (DC) technology has gained a lot of momentum in the LTE Release 12 as a means to enhance the per-user throughput and provide mobility robustness. The eNodeB has the MN role and the gNodeB has the SN role. MR-DC with the EPC, The MR DC mechanism is called E UTRA NR dual connectivity (EN DC). Evolved Packet Core : E-UTRA: Evolved Universal Terrestrial Radio Access : gNB. E-UTRA-NR Next Generation Node B : EPC. g. threshX-HighQ # This specifies the Srxlev threshold (in dB) is used by the UE when it is reselecting a higher priority frequency than the current serving frequency. Dual Connectivity. CN-based and RAN-based User Plane splitting options. Normally in Multi RAT-Dual connectivity, the UE has a single RRC If the MS supports dual connectivity of E-UTRA with New Radio (NR), then the MS sets the Dual connectivity of E-UTRA with NR capability bit to "Mobile station supports dual connectivity of E-UTRA with NR" in the MS network capability IE of the "Attach Request" or "Routing Area Update Request" message. 1-1 E-UTRA Channel Bandwidth of the latest published version of the 3GPP TS 36. Finally, migration strategies proposed by vendors and operators (MNOs / SPs) have been discussed. Its main features include a 5G modem with E-UTRA-NR Dual Connectivity for downloads speeds of up to 3. 55Gbps. 1 E-UTRAN/NR Dual Connectivity (EN-DC) 4. UEs supporting EN-DC can connect simultaneously to LTE Master Node eNB (MN-eNB) and 5G-NR Dual Connectivity for LTE-NR Cellular Networks Roberto P. In E-UTRA-NR Dual Connectivity (EN-DC), the UE has a single RRC state, based on the MN RRC and a single C-plane anchor at the EPC. M. 35Gbps in mmWave and 5. Join Our 5G Online course. in 3GPP TS 37. The proposed (1 LTE band + 1 NR band) uplink Dual Connectivity (DC) within FR1 to be added in Release 16 are: DC_39A-n41A, DC_(n)41AA, DC_41A-n41A, DC_39A- n79A and DC_41A-n79A UTRA-NR DC via EPC where the E-UTRA is the master until December 2017” NR 3GPP timeline LTE-NR Dual connectivity 1 Dynamic TDD 2 HARQ / Fast ACK 2 It covers the Standalone (SA) and Non-Standalone (NSA) architecture. The eNB is connected to the EPC via the S1 interface and to the en-gNB via the X2 interface. Some studies in the literature have discussed a coupling between the LTE and the air interface of the upcoming Fifth Generation (5G) in a DC scenario. 1-2. In case of MR-DC includes E-UTRA-NR Dual Connectivity (EN-DC), NG-RAN E-UTRA-NR Dual Connectivity (NGEN-DC), and NR-E-UTRA Dual Connectivity (NE-DC). 2 The modem also supports E-UTRA-NR Dual Connectivity (EN-DC) which combines To support the transition to 5G networks, multiple radio access technology connectivity enables a user equipment (UE) to simultaneously connect to Evolved Universal Terrestrial Radio Access (E-UTRA) and 5G NR base stations. 5G DC Intra-band CA NC EN-DC This functionality is based on Dual Connectivity (DC), which in this case called E-UTRA-NR Dual Connectivity (EN-DC). 4. , network slicing, flow based QoS framework, and mobility support where the handover is between NR and LTE (both • Test definition, MU for all LTE+NR FR1 Rx and Tx test cases • Progress on Test definition for all LTE+NR FR2 Rx and Tx test cases 5G NR roadmap - NSA option 3 delivery phases and targets Option 3: E-UTRA-NR DC via EPC where the E-UTRA is the master EPC CP function UP function SeNB S1- MME MeNB X2- C X2- U TARGET MAY-18 (Completed!) Dual Connectivity : eMBB: enhanced Mobile Broadband : eNB. In addition, the processor supports a new Wi-Fi 6 standard, IEEE 802. In a NSA deployment, Multi-Radio Dual Connectivity ÜMR-DCÝ provides a UE with simultaneous connectivity to two different generation RAN nodes Üi. Phase 3: StandAlone (with 5G CN) with COTS UE, ETA Q4-2020. Anen-gNBisdifferentfromagNBinthatitonlyimplementspart of the 5G base station functionality that is required to perform SN functions for EN-DC. There’s support for SA/NSA sub-6GHz 5G networks. 5 Gbps, WiFi 6, a faster NPU, plus support for single 108 MP cams. However, delays in backhaul links and the time between two executions of the FCA may limit the effectiveness of the split ratios computed by the CONTROL PLANE: To set up and modify the EN-DC operation, a mobile device must comprehend both the LTE and NR RRC control signaling. A DUT (device) which is connected to an eNodeB acts as a Master Node (MN) and an en-gNB acts as a Secondary Node (SN). It appears to be the same modem that is used in the Exynos 980. 133 — Simu5G supports both StandAlone (SA) and E-UTRA/NR Dual Connectivity (ENDC) deployment. Connectivity (MR-DC) as a dual connectivity mode of operation that allows user equipment to utilize resources (connect) to two nodes with different radio access technology This presentation discusses scenarios when one of the nodes is a New Radio (NR) and the other is either NR or LTE (E-UTRA) –E-UTRA New Radio Dual Connectivity (EN-DC) –NR The rollout is also supported by the use of E-UTRA (Evolved Universal Terrestrial Radio Access) NR Dual Connectivity (EN-DC) combinations where NR is always associated with an LTE link. 38Gbps. The gNB is connected to 5GC and the ng-eNB is connected to the gNB via the Xn interface. Cavalcanti Abstract—The Dual Connectivity (DC) technology has gained a lot of momentum in the LTE Release 12 as a means to enhance 5G UE RRC states concerning NR/5GC, E-UTRA/EPC and E-UTRA/5GC. See full list on ericsson. 55Gbps that can be lifted up to 3. The E-UTRA-NR Dual Connectivity (EN-DC) feature supports 5G New Radio (NR) with EPC. 1 DC → Dual Connectivity. That integration may provide some benefits to meet the high throughput • New WID on LTE connectivity to 5G-CN (RP-170840) • Specify E-UTRA protocols enhancement to support 5G-CN functions as (RAN2) e. The in-sequence and lossless handover is supported for the handover between gNB and ng-eNB. ENDC stands for Evolved-Universal Terrestrial Radio Access New Radio Dual Connectivity. depicted via the green lines in Fig. a UE is connected to one en-gNB that acts as a SN . . Similar to carrier aggregation (CA), it aims to utilize the radio resource within multiple carriers to improve UE throughput. The interface between en-gNB and eNB is also called Xx interface. node providing E-UTRA user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC. In Dual Connectivity, the split bearer concept is introduced, in which a data bearer is split between the two eNBs, at the PDCP layer. 55Gbps. 2 For uncompromised performance in 4G LTE mode, it supports up to 3Gbps of downlink speed and up to 422Mbps of uplink speed. From Tables 5. N/A: Not Applicable: NAS: Non-Access Stratum: NCGI: NR Cell Global Identifier: NCR: Neighbour Cell Relation: NE-DC. LTE or NR Dual Connectivity (DC) is a 3GPP solution, on the purpose on which is to achieve higher data rates by aggregating traffic from multiple base stations, where the UE can simultane-ously transmit and receive data on multiple carriers from a Master eNB (MeNB) and a Secondary eNB (SeNB). In EN-DC, the IAB-node also connects via E-UTRA to a MeNB, and the IAB-donor terminates X2 as SgNB. e. NE-DC:NR-E-UTRA Dual Connectivity,核心网是5G的,锚点是NR的NR+LTE DC,可以理解为Option4/4a。 NGEN-DC:NG-RAN E-UTRA-NR Dual Connectivity,核心网是5G,锚点是LTE的LTE+NR DC,可以理解为Option7/7a/7x。 MR-DC:Multi-RAT Dual Connectivity,对于DC的一个总称,包括EN-DC,NE-DC和NGEN-DC。 缩写说明 EN-DC:E-UTRA-NR Dual Connectivity SN:Secondary Node MN:Master Node. Connection establishment and release The first 5G NR networks are on-air using network deployment option 3X and utilizing E -UTRA N ew Radio D ual C onnectivity (EN-DC) with a split bearer setup. E-UTRA-NR Dual Connectivity : en-gNB. Radio Resource Control ( RRC ) is a layer within the 5G NR protocol stack. g. A UE connected to an eNodeB acts as a Master Node (MN) and an en-gNB acts as a Secondary Node (SN). The E-UTRA-NR Dual Connectivity (EN-DC) feature provides support for 5G New Radio (NR) with EPC. NR: NR Radio Access: NRF: NF Repository Function: NSA The main phases are as follows: Phase 1: "noS1" 5G-NR (with pre-configured gNB and OAI UE, no core network) Phase 2: E-UTRA - NR dual connectivity (NSA architecture option 3x, with 4G CN) with COTS UE, ETA Q2-2020. flexible TDD configurations) • Study on Enhanced Support for E-UTRA Carrier Configurations – CTG study for possible updates or enhancements related to • EUTRA or NR Carrier Aggregation • EUTRA-NR Dual Connectivity (inter -band and intra- band) E-UTRA (LTE) FDD / TDD CA = Carrier Aggregation CA / CA band combinations 3 4 Networks 5G New Radio (NR) Standalone/ Dual Connectivity (DC) CA / CA band combinations From the list, select the CA / CA band combinations for each 5G network selected CA / CA band CA / CA band CA / CA band More options available Option 04 * Indicates that if E-UTRA-NR Dual Connectivity (EN-DC) is supported by the primary serving * cell. 508 –E-UTRA Common Test Environment NR or LTE/E-UTRA based master node which may be combined with a secondary node when the UE is connected using dual-connectivity (e. This chapter provides a detailed description of dual connectivity for NR access Cell Group and E-UTRA Cell groups for both 5G with EPC and 5GS. E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of x bands (x=1, 2, 3, 4) LTE inter-band Carrier aggregation (CA) (x Down Link (DL) / 1 Up Link (UL)) and 2 NR bands NR inter-band CA (2 DL / 1 UL) Status: Under change control. e. 6GHz, NR-LTE DC Spectrum licensing schemes Licensed spectrum only Licensed, Carrier Wi-Fi EN-DC E-UTRA – NR Dual Connectivity eNB Evolved NodeB (which could be a Next Generation eNB, or ng-eNB) EPC Enhanced Packet Core e-UTRA Evolved Universal Terrestrial Radio Access gNB Next Generation NodeB MIMO Multiple Input, Multiple Output (antenna) MNO Mobile Network Operator MOCN Multi-Operator Core Network This concept is designed to increase user throughput, improve mobility robustness and provide load-balancing support between RAN nodes. NR-E-UTRA Dual Connectivity. using E-UTRA (LTE) air interface to represent 5G NR CBSD band are not acceptable 5G NR air interface for Spectrum Access System (SAS) LTE; 5G; E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of 2 bands LTE inter-band Carrier aggregation (CA) (2 Down Link (DL) / 1 Up Link (UL)) and 1 NR band (1 DL / 1 UL) (3GPP TR 37. 3 = CONNECTED. 716-21-11 version 16. e Silva, Emanuel B. ENDC is also known as E-UTRA NR Dual Connectivity. docx attachment from gNB: RRC Wei-Tai Chen attached OAI nFAPI for MAC-PHY Interface and Software Architecture for Dual Connectivity in E-UTRA and 5G-NR. Dual connectivity (DC) is a 3GPP Release 12 feature for small cell enhancement. Liu, Liehai E-UTRA/NR Dual Connectivity (EN-DC) 2B 5G DC CA . # a source eNB and target gNB when E‑UTRA‑NR Dual Connectivity. 55Gbps and upload speed of up to 1. These messages are referenced from the 5G Non-Standalone Access Sequence Diagrams. -UE is in connected mode using NR, E-UTRA (in 5GS) or dual connectivity between E-UTRA and NR. Massive MIMO and Beamforming. As per the official blogpost, “The modem supports E-UTRA-NR Dual Connectivity (EN-DC), which combines 2CC LTE and 5G connectivity, to maximize mobile downlink speed up to 3. 3. NG-RAN elements: gNB, eNB, ng-eNB, en-gNB; NR and E-UTRA Dual Connectivity options; Comparison of 4G & 5G radio access networks. node providing E-UTRA user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC. E-UTRA refers to the 4G air-interface and New Radio refers to the 5G air-interface. 5G NR protocol stack. The gNB is connected to 5GC and the ng-eNB is connected to the gNB via the Xn interface. Network slicing; Flow based QoSframework, including potential enhancement for the dual connectivity between eNBsusing flow based QoS; New security scheme (if any) Dual Connectivity can be realized, in which the gNB (MeNB ) is connected to the NGC with Non-standalone E-UTRA (SeNB) The E-UTRA user plane connection to the NGC goes via the gNB (Option 4) or directly (Option 4a). In EN-DC, the UE has a single RRC state, based on the MN RRC and a single C-plane connection towards the EPC Core Network. 4 New metrics for network planning and management 5. 806: Study of separation of NR Control Plane (CP) and User Plane (UP) for split option 2 On the other hand, dual connectivity (DC), introduced in Release 12 of 3GPP specifications , allows a user to be simultaneously served by two different base stations, operating on different carrier frequencies, and connected via a non-ideal backhaul. The NSA is also known as “E-UTRA-NR Dual Connectivity (EN-DC)” or “Architecture Option 3”. NR-E-UTRA Dual Connectivity NG-RAN supports NR-E-UTRA Dual Connectivity (NE-DC), in which a UE is connected to one gNB that acts as an MN and one ng-eNB that acts as an SN. 0. In the NSA architecture, EN-DC (E-UTRA-NR Dual Connectivity), NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity) and NE-DC (NR-E-UTRA Dual Connectivity) has been looked at. The inter-generations dual connectivity (DC) between the 4G and 5G, named as LTE-NR, has got a lot of attention in 3GPP Release 15 because such integration may help to guarantee 5G dedicated EN-DC E-UTRA NR Dual Connectivity EPS Evolved Packet System E-UTRAN Evolved Universal Terrestrial Radio Access Network EVS Enhanced Voice Services FDD Frequency-Division Duplexing GBR Guaranteed Bit Rate GRUU Globally Routable User agent URI GSM Global System for Mobile communications GTT-IP Global Text Telephony over IP MR-DC may include, but is not limited to, E-UTRA—NR Dual Connectivity (EN-DC), NG-RAN—E-UTRA-NR Dual Connectivity (NGEN-DC), and NR—E-UTRA Dual Connectivity (NE-DC). MR-DC with the 5GC. NGEN-DC. docx to gNB: RRC E-UTRA-NR Dual Connectivity Tag > E-UTRA-NR Dual Connectivity Press Release Samsung Introduces its First 5G-Integrated Mobile Processor, the Exynos 980 September 4, 2019 If the MS supports dual connectivity of E-UTRA with New Radio (NR), then the MS sets the Dual connectivity of E-UTRA with NR capability bit to "Mobile station supports dual connectivity of E-UTRA with NR" in the MS network capability IE of the "Attach Request" or "Routing Area Update Request" message. Fourth generation - 4G LTE 2010s: 4G LTE ushered in the era of mobile broadband. The E UTRA-NR Dual… Liked by Piyush Kumar. The Modem is also built on most advanced 7nm EUV process and is equipped with diverse power-saving technologies. 2. Various intra-/inter-RAT Dual Connectivity options. The term EN-DC (Evolved-Universal Terrestrial Radio Access-New Radio) refers to E-UTRA NR Dual connectivity. where LTE and 5G coexist (3GPP – TR 38. TS 38. NR/E-UTRA Dual Connectivity Bands Carrier Aggregation EN-DC NR-DC NE-DC FCC spectrum Radio NR FR1 + E-UTRA : 2 bands NE-DC frequency bands 38. NR-E-UTRA Dual Connectivity (NE-DC) RAN mendukung NR-E-UTRA Konektivitas Ganda (NE-DC), di mana UE dihubungkan ke satu gNB yang bertindak sebagai MN dan satu ng-eNB yang bertindak sebagai SN. You can also say EPS core New Radio Dual connectivity. The options listed in Figure 1, 2 and 3 are known as E-UTRA - New Radio Dual Connectivity (EN-DC). An ng-eNB stands for enhanced LTE ÜeLTE Ý eNB which E-UTRA New Radio-Dual Connectivity (EN-DC) is a 3GPP release 15 feature introduced to support New Radio 5G data with existing LTE core and radio networks and without introducing 5G core network. LTE market statistics, progress and outlook 7. Dual Connectivity. 1 System information blocks. Similar to carrier aggregation (CA), it aims to utilize the radio resource within multiple carriers to improve UE throughput. interaction between L TE and NR is also called E-UTRAN- NR Dual Connectivity (EN-DC). Samsung Exynos 990 Specifications Process: 7nm EUV 2. The ng-eNB is connected to the 5GC and the gNB is connected to the ng-eNB via the Xn interface. 16 5G Architecture Options It covers the Standalone (SA) and Non-Standalone (NSA) architecture. e. Dual connectivity (DC) is a 3GPP Release 12 feature for small cell enhancement. Dual Connectivity is a feature which was introduced by 3GPP in Release 12. A method, comprising: receiving, by a wireless station, a reselection priority value of a frequency band used by the wireless station when the wireless station is an anchor for an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA)-5G New Radio (NR) Dual Connectivity (EN-DC) environment; 10 E-UTRA connected to a 5GCN (see NOTE 5) 11 NR connected to a 5GCN (see NOTE 5) 12 NG-RAN 13 E-UTRA-NR dual connectivity (see NOTE 6) To add to above answer, 5G NR basically has 2 modes one is SA and another NSA (NR + LTE), depending upon your network you can use following commands for 5G force attach If the MS supports dual connectivity of E-UTRA with New Radio (NR), then the MS sets the Dual connectivity of E-UTRA with NR capability bit to "Mobile station supports dual connectivity of E-UTRA with NR" in the MS network capability IE of the "Attach Request" or "Routing Area Update Request" message. Rodrigo P. The complex arrangement between existing 4G LTE eNBs and 5G gNBs is described in greater detail via several more topics. Multi-Radio Dual Connectivity (MR-DC) is a generalization of the Intra-E-UTRA Dual Connectivity (DC) described in TS 36. optimization solvers such as CPLEX). gNB connected to EPC via S1-U is more specifically called en-gNB. NG-RAN E-UTRA-NR Dual Connectivity — Description for multi-connectivity operation using E-UTRA and NR . The chipset’s E-UTRA-NR Dual Connectivity feature combines 5G and 4G LTE networks to offer download speed of up to 3. 55Gpbs with E-UTRA-NR Dual Connectivity that combines 5G and LTE capabilities. 5G RAN Architecture. 1 The Exynos 880 also works with diverse major networks from 2G to 4G, and offers an LTE download speed of up to 1Gbps. , eLTE eNB) are connected to 5G-NR LTE Non-Standalone Signaling Messages 1 / 56 LTE 5G-NR Dual Connectivity Non-Standalone Access Signaling Messages This document details messages involved in the 5G non-standalone access attach and bearer setup procedure. The transmit power configuration identifies the designated reserved power for each of the cell groups participating in the dual connectivity communication. The gNB is the secondary node that provides NR user plane connection. Release 15 NR • New Radio (NR) Access Technology 1 EN-DC (Evolved-Universal Terrestrial Radio Access-New Radio), introduced in 3GPP release 15, refers to E-UTRA NR Dual connectivity. For example, eMBB services use 5G NR whereas VoLTE uses LTE radio. 1, refers to NR - E-UTRA Dual Connectivity (NE-DC) where a standalone gNB, as well as an evolved LTE eNB (i. com Example MR-DC configurations include EN-DC (E-UTRA – NR Dual Connectivity), NR-DC (New Radio Dual Connectivity), NGEN-DC (NG-RAN – E-UTRA Dual Connectivity) and NE-DC (NR – E-UTRA Dual Connectivity). Option 3/3a/3x As the early deployment architecture of 5G, NSA focuses on the eMBB scenario, reusing the current EPC and LTE as the anchor, which enables the quick introduction of 5G NR. The ng-eNB is the master node providing control plane connectivity to the 5G core network via NG-C interface. As intermediate steps to reach these goals, we can mention: E-UTRAN New Radio - Dual Connectivity (EN-DC) is a technology that enables introduction of 5G services and data rates in a predominantly 4G network. Multi-RAT Dual Connectivity: N/A: Not Applicable: NAS: Non-Access Stratum: NCGI: NR Cell Global Identifier: NCR: Neighbour Cell Relation: NE-DC: NR-E-UTRA Dual Connectivity: ng-eNB: node providing E-UTRA user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC: NGEN-DC: NG-RAN E-UTRA-NR No edge experience: In 5G NSA networks, E-UTRA-NR dual connectivity (EN-DC) is a powerful tool to aggregate both 4G and 5G data transmission capabilities, ensuring a premium experience. In an EN-DC network or communication, a UE may be connected to one evolved NodeB (eNB) or ng-eNB that acts as an MN and one next generation NodeB (gNB) that acts as an SN. Some studies in the literature have discussed a coupling between the LTE and the air interface of the upcoming Fifth Generation (5G) in a DC scenario. 1. 801) 1 EN-DC (Evolved-Universal Terrestrial Radio Access-New Radio), introduced in 3GPP release 15, refers to E-UTRA NR Dual connectivity. LTE connectivity to 5G-CN. 0 (2020-03) Technical Specification 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for If the MS supports dual connectivity of E-UTRA with New Radio (NR), then the MS sets the Dual connectivity of E-UTRA with NR capability bit to "Mobile station supports dual connectivity of E-UTRA with NR" in the MS network capability IE of the "Attach Request" or "Routing Area Update Request" message. 该过程用于当在EN-DC操作期间仅MCG SRB可用时UE从一个gNB-DU移动到同一gNB-CU内的另一个gNB-DU的情况。 图显示了在EN-DC中使用MCG SRB的gNB-DU间移动过程。 1. 35Gbps in mmWave (NR) • 5. 304. 340 — Multiple Rx/Tx UE is configured to utilise radio resources provided by two distinct schedulers, located in two eNBsconnected via a non-ideal backhaul over the X2 interface — SyncRequirementsin 3GPP . 1 Common MR-DC principles. Finally, migration strategies proposed by vendors and operators (MNOs / SPs) have been discussed. 5G DC Intra-band CA . Multiple Input Multiple Output (MIMO) and Antenna Implications A key takeaway from the early draft of Release 15 is that Multi-RAT Dual Connectivity. In this deployment scenario, the so-called non-standalone (NSA) mode, an LTE anchor is required to exchange control and signaling information. The modem also supports E-UTRA-NR Dual Connectivity (EN-DC), which combines 2CC LTE and 5G connectivity, to maximize mobile downlink speed up to 3. Coupon Code: eckn45j5https://cafetele. 11ax, that provides faster speed and greater stability for seamless online gaming and smooth high-resolution video streaming over Wi-Fi networks. In MR-DC, a user equipment (UE) is configured to utilize radio resources provided by LTE E- UTRA (Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Moreover, the download speed goes up to 3. Capable of supporting 5G’s sub-6GHz, the Exynos 880 offers an upload speed of up to 1. 4GHz Multi-Connectivity with asymmetric DL/UL, SDL for CA: 700MHz, 2. Finally, migration strategies proposed by vendors and operators (MNOs / SPs) have been discussed. In this option, commonly known as EN-DC (LTE-NR Dual Connectivity), a UEisconnectedtoaneNBthatactsasaMNandtoanen-gNBthatactsasaSN, seeFigure3. 5G NR via E-UTRA-NR Dual Connectivity (EN-DC) Jun 18 – Full Release (Standalone – SA) • Frequency Bands5G Next Generation Core Network (5GC) • Architecture Options 2 & 5 (Standalone) • Remaining features (Network Slicing, others) SDN-C • Separation of NR Control Plane (CP) and User Plane (UP) for Split option 2 (Higher Layer Split In the NSA architecture, EN-DC (E-UTRA-NR Dual Connectivity), NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity) and NE-DC (NR-E-UTRA Dual Connectivity) has been looked at. 1. Details of the network and radio interface protocols are specified in companion specifications of the 36 and 38 series. Next Generation NodeB : LTE: Long Term Evolution : MCG: Master Cell Group : mMTC: massive Machine Type Multi-Connectivity Network flexibility - virtualization Massive MIMO & Beamforming ı < 1GHz ı ~ 3. 5-2. EN-DC 2B. Standalone (SA) and Non-standalone (NSA). 300 V15. 2 LTE connectivity to 5GC 4. Non-Contiguous (NC) EN-DC 2B 5G DC CA NC EN-DC 3B. Wei-Tai Chen deleted the OAI nFAPI for MAC-PHY Interface and Software Architecture for Dual Connectivity in E-UTRA and 5G-NR. 35Gbps in mmWave and 5. threshX-Low # Parameter "ThreshX, LowP" in TS 38. Source: Adapted from ETSI 2021a, fig. 5-1 E-UTRA Operating Bands and 5. [0003] A communication protocol defined by the 3GPP, referred to as EN-DC (E- UTRAN/New Radio-Dual Connectivity) enables the simultaneous use of LTE and NR radio access technologies for communications between a mobile device and a cellular communication network. CDMA2000). 331 v15. 2) Inter-RAT handover: Intra 5GC inter RAT mobility is supported between NR and E-UTRA. DC architectures include, for example, those that adhere to the Evolved Universal Terrestrial Radio Access (E-UTRA) – New Radio (NR) — Dual Connectivity (EN-DC) protocol. 863-02-01: Title: E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of LTE 2 Down Link (DL) / 1 Up Link (UL) and 1 NR band # Each NR frequency and E-UTRAN might have a specific threshold. 10 Dual Connectivity (DC) uses both systems for evolution, 5G NR SA E-UTRA RRC Connected E-UTRA RRC Idle Power Class 2 UE for Dual Connectivity (one LTE band + one NR band) supporting +26 dBm has been proposed for TDD-TDD band combinations in RP-182877 work item. Aggregation, Dual Connectivity can offer similar benefits but for non-co-sited deployments – this is a very important aspect for 5G NR deployments. In the NSA architecture, EN-DC (E-UTRA-NR Dual Connectivity), NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity) and NE-DC (NR-E-UTRA Dual Connectivity) has been looked at. The Exynos 980 also gets support for the new Wi-Fi 6 standard which allows for improved speeds and greater stability. EN-DC may also be referred to as LTE/NR dual connectivity. The Dual Connectivity (DC) technology has gained a lot of momentum in the LTE Release 12 as a means to enhance the per-user throughput and provide mobility robustness. Security functions including key management. 101, the following table lists the specified frequency bands of LTE and the channel bandwidths each band supports Where: N DL = downlink EARFCN N UL = uplink EARFCN N DLoffset = offset used to calculate downlink EARFCN Dual Connectivity: In Dual Connectivity device is simultaneously connected to two cells. E-UTRA-NR Dual Connectivity: NG-RAN supports NG-RAN E-UTRA-NR Dual Connectivity (NGEN-DC), in which a UE is connected to one ng-eNB that acts as a MN and one gNB that acts as a SN. The single-chip transceiver integrates identical primary and diversity receivers (RXs) with seven pipelines for supporting four inter-band carrier aggregation (CA) with three 4 × 4 MIMO, two Addition, modification and release of Dual Connectivity in NR or between E UTRA and NR. E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of 2 bands LTE inter-band Carrier aggregation (CA) (2 Down Link (DL) / 1 Up Link (UL)) and 1 NR band (1 DL / 1 UL) Mr. 6. There’s also support for E-UTRA-NR Dual Connectivity (EN-DC) which can combine 2CC LTE and 5G to achieve maximum mobile downlink speeds of up to 3. g. 340 NR Multi-connectivity Overall Description. The world's first single-chip RF transceiver to support 5G sub-6-GHz new radio (NR) and longterm evolution (LTE) E-UTRA New Radio-Dual Connectivity (EN-DC) in 14-nm FinFET CMOS technology is presented. NG-RAN E-UTRA-NR Dual Connectivity. Inter RAT measurements in NR are limited to E-UTRA and the source RAT should be able to support and configure Target RAT measurement and reporting. Evolved NodeB : EN-DC. 38Gbps. That integration may provide some benefits to meet the high throughput Reference: 37. 801) May 2017 12 ıDual connectivity between NR and LTE E-UTRA master, NR secondary Via EPC (Option 3) Via NGC (Option 7) NR master, E-UTRA secondary* Via NGC (Option 4) ıSingle connectivity to Next-Generation After the above 5 steps, UE then maintains simultaneous dual connectivity to the 4G eNB and the 5G gNB, below is the call flow, between UE, eNb and gNB. It covers the Standalone (SA) and Non-Standalone (NSA) architecture. 2. NG-RAN E-UTRA-NR Dual Connectivity NGEN-DC Ý 5GC Option 7 ng-eNB acts as an MN and gNB acts as a SN NR-NR Dual Connectivity NR-DC Ý acts as a SN 5GC Option 2 One gNB acts as an MN and another gNB NOTE en-gNB represents a gNB that can connect with EPC and eNB. 4G/5G dual connectivity (DC) configuration. The data transfer speeds are, however, limited to a slower 2. 3Gbps DL 36 EN-DC: E-UTRA-NR Dual Connectivity EN-gNB / NR-gNB Node providing NR user plane and control plane protocol terminations towards the UE, and acting as Secondary Node in EN-DC. 1. The Exynos Modem 5123 also supports E-UTRA-NR Dual Connectivity (EN-DC) which combines LTE and 5G for maximum speeds. In option 7, the gNB provides NR user plane connectivity towards 5GC via ng-eNB. E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of LTE 1 Down Link (DL) / 1 Up Link (UL) and 1 NR band Dual Connectivity with EPC SGW VoLTE PGW eMBB Bearer E-UTRA NR EPC 3A E-UTRA NR 3 E-UTRA NR 3X NR 5GC 2 E-UTRA NR 5GC 4 E-UTRA 5GC 7X. NG-RAN: NG Radio Access Network: NGAP: NG Application Protocol. 213 V16. LTE beyond Rel-15: 5G ready for IMT-2020 6. The difference between DC and CA is in their application scenarios and their implementation. 2 6. 101-3 (Rel 16 Jun 2020) Dual Connectivity; Dual Connectivity. The PDCP layer at the anchoring User Plane node is responsible for the PDU 3GPP officially launched New Radio (NR) specification work Option 3/3A is prioritized for NSA (connectivity options in TR 38. 5 GHz ı ~ 26/28/39 GHz ı Hybrid beamforming ı > 6GHz also UE is expected to apply beam steering eNB gNB MCG MCG split SCG Initially based on Dual Connectivity with E-UTRA as master SCG split ı Flexible physical layer numerology ı Network -UE is in connected mode using NR, E-UTRA (in 5GS) or dual connectivity between E-UTRA and NR. 2. In the NSA architecture, EN-DC (E-UTRA-NR Dual Connectivity), NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity) and NE-DC (NR-E-UTRA Dual Connectivity) has been looked at. Simu5G is compatible with SimuLTE , and allows one to simulate network scenarios where 4G and 5G coexist, in both StandAlone (SA) and E-UTRA/NR Dual Connectivity (ENDC) deployments. 7 E-UTRAN 8 EC-GSM-IoT 9 E-UTRAN 10 E-UTRA connected to a 5G CN 11 NR connected to a 5G CN 12 NR connected to an EPS core 13 NG-RAN 14 E-UTRA-NR dual connectivity: Signal strength: int: ss: optional: Current base station broadcast signal strength: int: signalLength: optional The modem also supports E-UTRA-NR Dual Connectivity (EN-DC), which combines 2CC LTE and 5G connectivity to maximize mobile downlink speed of up to 3. 0 Release 16) E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of 2 bands LTE in. The first phase of new radio (NR) standard, which was finalized in December 2017, is called a non‐standalone (NSA) NR as it is based on dual connectivity between an LTE radio access technology (RAT) and the NR RAT, known also as E‐UTRA – NR Dual Connectivity(EN‐DC). This 5G-RAN node is not mentioned in the overall description of 5G network architecture in the 3GPP Technical Specification 38. Other technolo-gies such as GSM and WCDMA cannot be combined in DC with NR. Conclusion References -----08 Multi-RAT Dual Connectivity (MR-DC) (TS37. */ Multi-RAT Dual Connectivity (MR-DC) (TS37. 55Gbps. (compared to ~80 L1 parameters for LTE Rel-8) Dual connectivity options L1 parameters NG-U/NG-C (RAN) N2/N3 (SA2) – UE is camping on a cell of E-UTRAN (connected to EPC) with the ability to activate dual connectivity with NR as secondary cell; – UE is in connected mode using NR, E-UTRA (in 5GS) or dual connectivity between E-UTRA and NR. It uses OFDMA radio-access for the downlink and SC-FDMA on the uplink. 214: Architecture enhancements for control and user plane separation of EPC nodes 3GPP TR 38. The E-UTRA Measurement Report message containing the NR PCI (Physical Cell Identity), as well as the requested measured quantities, will be sent to the eNB. Radio Resource Control ( RRC ) is a layer within the 5G NR protocol stack. 3-2. , EN-DC with EPC or MR-DC with 5GC) In addition to inter RAT dual-connectivity using EN-DC and MR-DC the LTE and NR RANs may also 37. Connected via the NG-interface to the 5GC or via S1- Multi-Connectivity Network flexibility - virtualization Massive MIMO & Beamforming ı < 1GHz ı ~ 3. The device is camped on an LTE cell that supports E-UTRA-NR Dual Connectivity(EN-DC) and both the use of dual connectivity with NR(DCNR) is not restricted and NR is supported by the selected PLMN. Finally, migration strategies proposed by vendors and operators (MNOs / SPs) have been discussed. 716-33: E-UTRA (Evolved Universal Terrestrial Radio Access) - NR Dual Connectivity (EN-DC) of 3 bands Down Link (DL) and 3 band Up Link (UL) 4. g. It's part of E-UTRA-NR Dual Connectivity (EN-DC). 1. # Each NR frequency and E-UTRAN might have a specific threshold. NG-RAN supports NR-NR Dual Connectivity (NR-DC) The course also describes various RAN – core option and dual connectivity options as well as some NG-RAN implementations such as C-RAN, O-RAN (from O-RAN Alliance) and IAB (Integrated Access and Backhaul). 34 0) • MR-DC: two different nodes connected via non-ideal backhaul, one providing E-UTRA access and the other one providing NR access – One node acts as the MN and the other as the SN – The MN and SN are connected via a network interface and at least the MN is conne cted to the core network The method includes: transmitting an uplink signal using the dual connection between the E-UTRA and the NR; And receiving the downlink signal using the dual connection, wherein the E-UTRA utilizes at least one of the E-UTRA operating bands 1, 3, 5, and 7, Wherein one of the bands n77, n78 and n79 is used, the uplink center frequency of the DC Dual connectivity DCI Downlink control information DL Downlink DL-SCH Downlink shared channel EPRE Energy per resource element EN-DC E-UTRA NR dual connectivity with MCG using E-UTRA and SCG using NR FR1 Frequency range 1 FR2 Frequency range 2 GSCN Global synchronization channel number HARQ-ACK Hybrid automatic repeat request acknowledgement The Exynos 880 also comes with the E-UTRA-NR Dual Connectivity feature, which combines both 5G and 4G LTE networks to bring download and upload speed of up to 3. ng-eNB / eLTE eNB Node providing E-UTRA user plane and control plane protocol terminations towards the UE. Figure 2 EN-DC Overview NE-DC In this option called NE-DC (NR-E-UTRA Dual Connectivity) the gNodeB is MN and the eNodeB is SN. This naming convention orders the air interface technologies according to Master Node followed by Secondary Node. The difference between DC and CA is in their application scenarios and their implementation. , next generation NodeB ÜgNBÝ and eNBÝ. The differences between CA and DC are as follows: Non-standalone E-UTRA-NR Dual Connectivity (EN-DC). A UE connected to an eNodeB acts as a Master Node (MN) and an en-gNB acts as a Secondary Node (SN). LTE connectivity to 5G-CN functionality . • NG-RAN RAN that connects to 5GC – Could use either the NR or E-UTRA radio access technology – Note NG-RAN is defined by its connectivity to the 5GC and not by the radio it uses. 5 GHz ı ~ 26/28/39 GHz ı Hybrid beamforming ı > 6GHz also UE is expected to apply beam steering eNB gNB MCG MCG split SCG Initially based on Dual Connectivity with E-UTRA as master SCG split ı Flexible physical layer numerology ı Network One important point to comprehend is the Dual-Connectivity (DC) operation, where 5G devices can establish multiple independent data (bearer) connections to provide greater throughput. @ The main functions of the RRC protocol includes that: 1. These two topologies are shown in the figure 7. Antonioli, Gabriela C. The eNodeB is connected the S1 interface to the EPC through and through the X2 interface to the en-gNB. CDMA- Code Division Multiple Access). Inter-gNB-DU Mobility. The base stations 120 are collectively a Radio Access Network 140 (e. Dual Connectivity was initially proposed in Release 12 [1] to LTE Connectivity to 5G Core Network (5G-CN) – the other side of the coin in the tight interworking between LTE and NR, requires the E-UTRA to be connected to 5G-CN. Demo of Dual Connectivity Baseband EN-DC E-UTRA-NR Dual Connectivity MR-DC Multi-RAT Dual Connectivity NE-DC NR-E-UTRA Dual Connectivity NGEN-DC NG-RAN E-UTRA-NR Dual Connectivity Few weeks before freezing 5G NSA, RAN1 sent RAN2 ~600 L1 parameters to cover within RRC spec. The E-UTRA-NR Dual Connectivity (EN-DC) feature supports 5G New Radio (NR) with EPC. Bogdan Solca , 09/04/2019 EN-DC E-UTRA NR dual connectivity with MCG using E-UTRA and SCG using NR FR1 Frequency range 1 FR2 Frequency range 2 GSCN Global synchronization channel number HARQ-ACK Hybrid automatic repeat request acknowledgement MCG Master cell group MCS Modulation and coding scheme NE-DC E-UTRA NR dual connectivity with MCG using NR and SCG using E-UTRA The purpose of this procedure is to inform E-UTRAN or NR MN about an SCG failure the UE has experienced. 55Gbps and 1. 55Gbps, and upload speeds touch 1. EN -DC can be a useful feature for Heterogeneous networks (HetNets) where LTE provides reliable coverage and NR can be used for improving data rates. 1Gbps in sub-6Ghz setting • Upto 8x CA (NR) • 4G LTE mode ~3Gbps of DL, 422 Mbps UL. e utra nr dual connectivity