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    ericsson 5g nodes

    With the advent of 5G, several experts in the industry got together to define how the core network should evolve to support the needs of 5G New Radio (NR) and the advanced use cases to be enabled by it. Alongside 5G new radio (NR), 5G Core is a fundamental cornerstone of 5G networks. That is, MRTD = TAE + ∆Tprop. Some microservices can even be re-used for different NFs, making implementation more effective and facilitating independent life-cycle management – which allows upgrades and new functionalities to be deployed with zero impact on running services. The split option is denominated as 7-2x and it is an intra-PHY split – that is, some parts of the 3GPP PHY layer are implemented in the DU and others in the RU [9]. With the network exposure capabilities from the dual-mode 5G Core, service providers can now begin to use a common suite of pre-integrated, standard Application Programming Interfaces (APIs) to program and control connectivity services between IoT devices and application functions. ​. These segments are Massive IoT, Broadband IoT, Critical IoT and Industrial Automation IoT. Services with special accuracy or availability demands should be carefully analyzed to minimize costs. Also, cars will use 5G technology for different services. In many cases, a combination of techniques in both domains will be required to create a robust and reliable solution. Ericsson Addendum: According to Ericsson’s latest Mobility Report, published earlier this week, global 5G subscriptions will exceed 2.6bn within the next six years and by that time Ericsson predicts that 5G will cover 65 percent of the world.It also believes that total mobile subscriptions, including to previous generation networks, will reach 8.9bn from 8bn over the next six years. The connectivity needs of all industries can be addressed by four multi-purpose IoT segments, which efficiently co-exist in one 5G network. These applications require synchronization accuracy in the same range as the TSN. 5G network speeds in the UAE are currently the world's fastest, according to new research by vpnMentor, the world's largest VPN review website. With Ericsson's 5G platform you can: Evolve your network from 4G to … While many applications benefit from accurate time synchronization, it is important to realize that high time accuracy over large areas can be very costly. The Future Network Architecture needs to provide for a lot of various types of functionality and at the same time it is required to be able to deploy that functionality in different physical locations. The protocol is based on a two-way exchange of timing messages [7]. joined Ericsson in 2002 and currently works as a researcher at Business Area Networks, where much of his time is spent on analysis and solutions related to synchronization, including contributions to 3GPP standardization. 5G New Radio introduces a new type of wireless backhaul known as integrated access and backhaul that is of particular interest for dense deployment of street-level radio nodes. He joined Ericsson in 2005 and has served as a member of the ORAN Working Group 4 (Open Fronthaul) with standardization since Ericsson joined the ORAN Alliance in 2019. Time and phase synchronization is particularly important in 5G networks. Industrial automation is just one example of a use case that requires accurate timing and is likely to generate additional synchronization requirements in the near future. Pioneering customers select us as their 5G partner and we are first with commercial live networks in four continents. This results in synchronization requirements in the microsecond range between nodes in the TSN. GNSS is based on satellites having a known time and orbit position, transmitting messages whose arrival are measured by the GNSS receiver. Check the latest information on our 5G agreements. Ericsson ERIC recently inked a deal for an undisclosed amount with China Telecom and China Unicom to offer core products and solutions for 5G … Read our guide Building a new world - evolving from EPC to 5G Core. As noted in the bottom of the figure, ∆Tprop_UE1 and ∆Tprop_UE4 are less than ∆Tprop_UE2, which is less than ∆Tprop_UE3. The two main types of synchronization requirements that are relevant for 5G networks are those that depend on the radio network operation and those that depend on the supported services (application-driven requirements). Several aspects need to be considered when selecting the most appropriate synchronization solution(s), including installation and operation costs, synchronization accuracy, robustness and availability targets. The baseband function in a base station is split into two logical units: a CU hosting the higher-layer protocols and a DU handling the lower layers to the user equipment (UE). 3GPP-defined asynchronous dual connectivity without TAE requirements and ∆Tprop restrictions is an example of a feature with no timing requirement. In parts of the network where transport does not support PTP, PTP should not be used as the primary time source for RAN nodes due to the limitations on the achievable performance. Many of the commercial 5G networks going live around the world today use TDD. You’ve probably heard about advanced 5G use cases which, thanks to ultra-low network latency and very high throughputs, will revolutionize businesses and the day-to-day lives of consumers. The data carried between a DU and an RU uses Ethernet-based transport. These features and related timing requirements are applicable within a single operator network, and as a result, control of relative time error between antennas used by the feature is sufficient. Communications Service Providers (CSPs) and Enterprises often struggle with the complexity created by successive mobility generations, packetization, and cloud. To mitigate such effects, the transport network requires PTP-aware network elements such as boundary clocks or transparent clocks as well as support of PTP across the entire time distribution chain (“full timing support from the network” as described in G.8275.1). Per the recent collaboration, the 5G data and voice calls were made on Ericsson’s 5G infrastructure and harnessed the next-gen technology of Oppo … A toolkit lets integrated operators run their mobile and fixed-line operations on a common 5G core. The strict MRTD, and thereby TAE, relates to features using the same frequencies (like MIMO (multiple-input, multiple-output)) or at adjacent spectrum (like contiguous carrier aggregation) where common or shared functions in the RF chain could cause strict timing dependencies. the deviation in frame start timing between cells must be below a maximum value specified as cell phase synchronization accuracy in the 3GPP. Download your guide to building a cloud native 5G Core. Johansson holds an M.Sc. While the introduction of 5G did not cause any fundamental change to radio network synchronization requirements, some applications may put more stringent local accuracy requirements on the synchronization of the 5G nodes. Ericsson is the market leader in terms of 5G live networks across 5 continents. Its importance has grown in 4G, and it will be more important than ever in 5G and future networks. An important aspect of this is that a base station may use PTP for the delivery of both time synchronization and frequency synchronization. Some approaches to solving the UE device-positioning use case rely on accurate synchronization of the radio nodes with the help of methods such as OTDOA (Observed Time Difference of Arrival). Ericsson ERIC has secured a five-year 5G core deal from WIND Hellas, covering both the standalone and non-standalone modes of the technology. Each Network Function (NF) is formed by a combination of small pieces of software code called as microservices. 5G is set to be revolutionary. Lars Magnus ... mobile switching centers and service application nodes. T-Mobile US, Inc. TMUS recently announced multi-billion-dollar deals with Ericsson ERIC and Nokia NOK to continue expanding its nationwide 5G network. Ericsson ERIC recently announced that its 5G Radio Access Network and Core products and solutions are driving Orange Spain’s 5G services in Madrid and Barcelona. In this case, the distribution of a single time reference is sufficient. According to its SpeedTest field research, a network speed of 959.39Mbps in the UAE puts it at the top of the global list, ahead of Saudi Arabia (921.11Mbps) and Norway (865.57Mbps). Ericsson is a technology leader in 5G. It is an evolution of our powerful virtualized portfolio, designed for cloud deployment, consisting of our Cloud Packet Core, Cloud Unified Data Management (UDM) and Policy and Signaling Controller products. Some relate to combining spectrum assets, thereby allowing total higher aggregated bandwidth and throughput (carrier aggregation, dual connectivity and so on), while others relate to improving link performance at the cell edge (variants of coordinated multi-point operation, for example). When the GNSS reference is lost, the holdover time can be prolonged by using assisting synchronization sources such as APTS, OAS and PRTC/enhanced PRTC traceable synchronous Ethernet. Authors: Stefano Ruffini, Mikael Johansson, Björn Pohlman, Magnus Sandgren, APTS – Assisted Partial Timing SupportCP – Cyclic Prefix CPRI – Common Public Radio Interface CU – Centralized UnitDL – DownlinkDU – Distributed UniteCPRI – Enhanced CPRI ePRTC – Enhanced Primary Reference Time Clock FTS – Full Timing SupportGNSS – Global Navigation Satellite SystemIoT – Internet of ThingsITU-T – International Telecommunication Union Telecommunication Standardization SectorMRTD – Maximum Receive Timing DifferenceNR – New RadioNTP – Network Time Protocol OAS – Over-the-Air SynchronizationPRTC – Primary Reference Time ClockPTP – Precision Time ProtocolRF – Radio FrequencyRU – Radio UnitRX – ReceptionT-GM – Telecom GrandmasterTAE – Time Alignment ErrorTSN – Time-Sensitive Network/NetworkingTX – TransmissionUE – User EquipmentUL – Uplink UTC – Coordinated Universal Time. in telecommunication engineering from Sapienza University of Rome, Italy. OAS is based on round-trip time measurement similar to PTP, with the advantage that the asymmetries are generally small over the air, making it possible to achieve good time alignment. As shown in Figure 4, a fairly typical 5G mobile network can combine methods like GNSS and OAS at base station sites, time and frequency distribution via the transport network, and redundancy and holdover functions in the nodes. TDD radio frames inherently require time and phase alignment between radio base stations, to prevent interferences and related loss of traffic. The tightest requirements should be addressed locally only when and where required. The duration of the guard period needs to cater for four effects: Since guard periods are not used for communication, they reduce the time ratio when spectrum resources can be used. However, during technology shifts and business transformations it becomes crucial. Ruffini holds a M.Sc. There are two requirements for time domain isolation: For TDD synchronicity and interference, the critical points are when switching between transmission and reception, as shown in Figure 2. The adoption of cloud-native technology and the new 5G Core architecture will impact other parts of the core network as infrastructure, voice services, automation and orchestration, operations and management and security. It is integrated with Ericsson Packet Core Gateway in Ericsson’s dual-mode 5G Core offering and addresses security use cases for core network deployments in mobile broadband and IoT segments. The optimal solution for a specific network may depend on existing synchronization feature support of the network and network elements, transport network modernization plans that improve synchronization support, as well as operator preferences. Ericsson estimates the number of subscriptions reaching one billion by the end of 2023. Time synchronization is also required in FDD networks when different radio coordination features are used. 5G wireless access provides wireless connectivity for a wide range of new applications and use cases. Watch this video for an overview of our multi-access, high-performance and cost-effective core platform for 5G above or explore our assets below to gain more insights. 5G will be offered through 5G towers but not only. 5G makes it possible to serve several applications that have previously been supported either by wireline or by non-standard radio technologies, such as Critical Internet of Things (IoT) and Industrial Automation IoT services [1] for which time synchronization is fundamental. This includes using Precision Time Protocol (PTP) and radio interface-based methods to synchronize distributed radio units in the evolved RAN architecture, where the upper and lower parts of the 5G New Radio (NR) RAN are separated in the different logical units: the centralized unit (CU), the distributed unit (DU) and the radio unit (RU). … When 5G is used to support smart grid applications, the 3GPP synchronization architecture [4] can be used to support the distribution of timing to the synchro-phasors that in this way can measure the phase relationships in the AC power distribution network. The DU may be part of the synchronization chain or just a consumer of the synchronization. This Ericsson Technology Review article explains the main categories of 5G synchronization requirements and presents a toolbox of solutions for all relevant scenarios, the most challenging of which can often be addressed within the RAN domain. One promising method for time alignment of the radio network is to use information over the NR air interface. Ericsson is a technology leader in 5G. To limit the effects of asymmetry and packet delay variation that could be created by the network nodes (switches and routers, for example), IEEE 1588 has specified the “boundary clock” and “transparent clock” functions with event message timestamping in the hardware layer. The product, which leverages the Nokia Smart Node portfolio leverages Qualcomm® 5G RAN platform Thanks to our dual-mode core solution - and its embedded API management module - both 4G and 5G core network APIs can be combined into customized service APIs to be exposed to partners and application functions in a controlled and secure way. The fundamental technologies to address these requirements come from the GNSS, which provides the basic technology for a time synchronization master, enabling global distribution of a UTC-traceable reference. For the same delay spread, UE1 and UE4 can tolerate larger TAE than UE2 and UE3. In this new architecture each Network Function (NF) offers one or more services to other NFs via Application Programming Interfaces (API). Ericsson's 5G radio prototype, which provides 5G wireless network access, has been widely deployed for real-world testing in the U.S., South Korea, Japan, … To that end, 5G enabled networks need to be designed from an end-to-end perspective, beyond mobile access. Operational Knowledge of Multi-Vendor transmission Nodes - Ericsson / Nokia / Huawei / Ceragon Telecom equipment. In particular, these recommendations define reference synchronization networks, where the synchronization is generated by time synchronization masters or PRTCs, which are typically based on GNSS technology and where the reference timing signal is carried across a network of clocks. OAS uses timing information sent over the radio interface between neighboring base stations. In this project, Ericsson will deliver a comprehensive portfolio of telecom services. Ericsson Packet Core, are currently looking for a software developer to strengthen our team and community in one of Ericsson's industry-leading product that is a part of Product Development Group (PDG-Mobility). Specified by IEEE 1588, PTP has been selected by the telecom industry to distribute accurate time synchronization from an accurate master, such as GNSS. In cases where the TDD-unicast area is not isolated, the 3GPP has specified that traceability to a standard timing reference (UTC) is required [3]. This is particularly relevant for cases that require GNSS redundancy (to protect against jamming or spoofing events, for example), where the distribution of timing over the transport network as a complement to a local GNSS receiver should be considered. joined Ericsson in 1997 and currently serves as a system developer. To decrease overheads, the emphasis is on striving to keep the guard periods short, while still catering for the desired effects. The purpose of the G.8275.1 profile is to meet the highest accuracy, which requires the implementation of an IEEE 1588 telecom boundary clock or telecom transparent clock in every node in the timing distribution network. Figure 1: Synchronization in new network scenarios. Synchronization requirements related to communication over the radio interface can be divided into two categories: TDD cell phase synchronization (Tsync) and communication features based on coordinated transmission or reception from multiple Transmission Reception Points (TRxPs). Ericsson's 5G New Radio RAN is an integral component of its 5G platform and includes software support for shift from LTE (a 4G mobile communications … Ericsson is a technology leader in 5G. The new 5GC architecture addresses the needs of not just today, but the future – raising mobile communications to unprecedented levels and making it possible to digitalize entire societies. joined Ericsson in 1993. GNSS satellites visibility is important for proper operation. Frequency synchronization in these reference networks is carried over the physical layer (typically using synchronous Ethernet). After first joining Ericsson in 1997 to … New network architectures imply new approaches to addressing the various synchronization needs. Finding the right balance between timing accuracy, availability and cost is key to making services successful. Here, Ericsson´s 5G platform plays an instrumental role, in helping you build a better 5G network in a better way. Soft Skill & Behavioural Proficiency: Effective communication & Presentation skill. ​Download our 5G core programmability paper to learn more. 5G Core enables new ways of achieving challenging business and operational goals. With Ericsson’s dual-mode 5G Core, software probes are built-in. Frequency synchronization based on packet protocols like Network Time Protocol (NTP) or PTP using the G.8265.1 profile (in a PTP-unaware network) has proven to be the most cost-efficient solution in LTE-FDD networks, where frequency synchronization alone was often sufficient. Several CSPs have partnered with us. Spanish operator Telefonica’s 5G network already reaches 80% of the country’s population, local press reported. This is not always the case in real networks due to factors such as different fiber length or the use of different wavelengths in the optical transmission. This is because the reduced transient times in NR made it possible to keep the same synchronization requirement with low overhead. Operators use Ericsson products to migrate from 2G to 3G and, most recently, to 4G networks. ​. Short disruptions due to interference and blocking are common, but the negative impact can be avoided or limited by the base station’s holdover using the local oscillator – up to a few hours for a TDD base station, for example. Why do you need a 5G Core network and 5G NR Standalone? A GNSS-based solution installed directly at base station sites can provide cost-efficient, accurate and predictable time synchronization of the radio network without any support from the transport network. Depending on the required positioning accuracy, these may not always result in cost-efficient solutions. Since any source of asymmetry results in error in the time synchronization distribution, the asymmetry must either be known and compensated for or sufficiently small to be negligible. This can be done by simply setting API parameters as opposed to running complex network integration projects, allowing for multiple network operations towards IoT devices previously considered impossible or too expensive. In this context, over-the-air synchronization (OAS) is a powerful tool. Coordination may also occur between NR and LTE. Ericsson ERIC recently made a significant headway in strengthening its market position in the 5G Enterprise market by acquiring Cradlepoint for an enterprise value of $1.1 billion. In practice, a base station with a Global Navigation Satellite System (GNSS) receiver fulfils the requirement on UTC traceability as specified by the 3GPP. has worked with timing and synchronization distribution within the RAN base station and with air transmission accuracy for 20 years. In particular, one of the groups in O-RAN addresses the split between the DU and RU – O-DU and O-RU in the O-RAN terminology. Verizon’s 5G gets points for speed but knocks for coverage | … This includes multiple operators in both the US and South Korea, as well as in Switzerland, Australia and UAE. The 5G Core (5GC) is the heart of the mobile network where ultra-connectivity translates into service differentiation and business flexibility. Proper network synchronization is a prerequisite to excellent radio network performance. Figure 3: Synchronization for coordinated transmission/reception. An efficient synchronization solution that addresses all relevant scenarios requires the support of a toolbox of synchronization methods that are implemented in the RAN domain (GNSS and OAS), the transport domain (such as PTP), or both. PTP with “full timing support from the network” should be used to meet the relevant time synchronization requirements. While the level of the required synchronization accuracy depends on several factors, it would be a mistake to apply the tightest synchronization requirement as a general 5G requirement, as doing so would make the cost for 5G and the future evolution of the mobile technologies unsustainable. Longer holdover periods can be achieved when GNSS is combined with other technologies that provide a stable timing reference (traceable to PRTC). The network evolution from EPC to 5G core plays a central role in creating a powerful network platform, capable of being exposed and automated, for service providers to extract more value and become contributors in existing and emerging ecosystems.​However, the journey to a full 5G Core will imply a technology shift with the adoption of the new 3GPP defined service-based architecture (SBA) and network functions built on cloud native technology.​ Learn our smooth and step-wise migration alternatives to 5G Core. The path delay estimation assumes that the delay of the two transmission directions is symmetric. Ericsson's 5G radio network products build further on proven 4G platforms which, today, offer state-of-the art security functions such as support for secure protocols, e.g. This prevents interference between different networks using adjacent frequency bands or between national borders, because it enables the phase alignment of the radio frames generated by different networks with overlapping areas. Has worked with timing and synchronization is key to making services successful designed to optimize service performance and reliability and... Tsync ) networks is carried over the physical layer ( typically using Ethernet. And an RF propagation delay difference ( ∆Tprop ) to keep the same as. Made it possible to keep the same delay spread, UE1 and UE4 can tolerate larger TAE UE2. Mrtd as a fraction of a cyclic prefix ( CP ) the UE device-positioning case. 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