5G Radio (PA TRX Digital Filter Antenna Integration etc) Design Engineer. They combine FDD 2-5G antennas with mid-band M-MIMO panels, in two different design options. End-user performance requirements continue to increase, putting high demands on the radio access network (RAN) to deliver increased coverage, capacity and end-user throughput. Peter von ButovitschPeter von Butovitsch joined Ericsson in 1994 and currently serves as Technology Manager at Systems & Technology. In multi-path scenarios, where the radio channel comprises multiple propagation paths from transmitter to receiver through diffraction around corners and reflections against buildings or other objects, it is beneficial to send the same data stream in several different paths (direction and/or polarization) with phases and amplitudes controlled in a way that they add constructively at the receiver . The strip contains printed circuit boards and tiny antennas able to pick up and send 5G data. Ericsson is showing off the fruits of its acquisition of its long-time antenna provider, Kathrein Mobile Communications, last year. Ericsson Technology Review, Designing for the future: the 5G NR physical layer, available at: Ericsson Technology Review, Evolving LTE to fit the 5G future, available at: Ericsson Technology Review, 5G radio access, available at: Ericsson white paper, 5G radio access: capabilities and technologies. Since the AAS and the transport network must be dimensioned for the maximum number of layers, the MNO needs to consider how many layers are required in their networks. Ericsson said mobile networks increasingly depended on antenna technology, with more integration of antennas and radios and increasing use of active antennas in next-generation 5G. Figure 3: An array of sub-arrays supporting high total antenna gain and steerability. And one of the things is trying to integrate 5G capability with standard passive antennas.” “Passive antennas will cover lowband frequencies (600-900 MHz) and then there are some midband arrays in current products for 14-2600 MHz. Ericsson Massive MIMO Macro 5G layer antennas 1. Anders FuruskärAnders Furuskär joined Ericsson Research in 1997 and is currentlya senior expert focusing on radio resource management and performanceevaluation of wireless networks. As a result, AAS significantly enhances network performance in both uplink and downlink. The purpose of MIMO is to increase throughput. 2. Further, the vertical coverage range needs to be large enough to cover the vertical spread of users. Using larger sub-arrays for a given antenna area means that fewer radio chains are required. This is referred to as reciprocity-based beamforming. He later moved to the Systems & Technology organization to work closer to the implementation of multi antenna technologies. The system includes hardware, software and services for radio, RAN Compute, antenna system, transport, power, enclosure and site solutions. Our solutions will accelerate Swisscom’s 5G transformation. Ericsson said its five-year deal with T-Mobile will see it supply equipment, software and related services to expand and enhance the telco’s 5G footprint. Expand Collapse. He is currently a researcher at Systems and Technology working with concept development and network performance for NR with a focus on advanced antenna systems. David AstelyDavid Astely is currently a Principal Researcher with Ericsson Research in the radio area. Therefore, the network capacity typically improves as the number of MIMO layers increases, to a point at which power sharing and interference between users result in diminishing gains, and eventually also losses. There is generally a mix of building types, which creates multipath propagation between the AAS and the UE. Ericsson Multi-band 5G radios 1. Ericsson Spectrum Sharing completely transforms the way 5G is introduced across the world. Such features are already used with conventional systems in today's LTE networks. Since then he has held various positions in Ericsson Research and in product development. By combining multi frequency low band support with the AIR 3239, in a single unit, no extra footprint is needed for massive MIMO 5G. The achievable capacity gains from MU-MIMO depend on receiving each layer with good signal-to-interference-and-noise-ratio (SINR). Radio 8823 8T/8R radio 3.5GHz band. Modern Slavery Statement | Privacy | Legal | © Telefonaktiebolaget LM Ericsson 1994-2021, Redefine customer experience in real time, https://www.elsevier.com/books/5g-nr-the-next-generation-wireless accesstechnology/dahlman/978-0-12-814323-0, https://www.ericsson.com/en/ericsson-technology-review, https://www.ericsson.com/en/ericsson-technology-review/archive/2017/designing-for-the-future-the-5g-nr-physical-layer, https://www.ericsson.com/en/ericsson-technology-review/archive/2017/evolving-lte-to-fit-the-5g-future, https://www.ericsson.com/en/ericsson-technology-review/archive/2014/5g-radio-access, Massive MIMO brings high-speed mobile internet to football fans. Another main driver for AAS is the need to meet coverage requirements on new and higher frequency bands. Ericsson leveraged on the latest Kathrein Mobile Communications (KMC) antenna technology, and designed the Hybrid AIR site solution. It has unveiled two new radios for its AIR (antenna-integrated radio) family, which are designed to make it quicker, easier and cheaper to deploy midband 5G at scale. The urban low-rise scenario illustrated in section B of Figure 4 represents many of the larger cities around the world, including the outskirts of many high-rise cities. This is particularly important when introducing 5G on existing site grids. Along the walls at one of Ericsson's demos, the strip was embedded behind a … It should be noted that the practical benefits of many layers in MU-MIMO are limited by the fact that, in today's real networks, even with a high number of simultaneous connected users, there tends not to be many users who want to receive data simultaneously. He joined Ericsson Research in 1998, where he worked with research and standardization of 3G and 4G physical layer with a special interest in MIMO and beamforming technologies. It fits all site types and traffic scenarios, even as networks grow in scale and complexity. In dense urban high-rise scenarios with tall buildings and high subscriber density, an AAS with beamforming capabilities in both vertical and horizontal directions is the most beneficial option. To see how an antenna array creates steerable high-gain beams, we start with an antenna array of a specific size, which is then divided into sub-arrays of different sizes. The main network evolution driver is increased capacity or equivalently high end-user throughput for a given traffic load. This scenario calls for an AAS with a large antenna area and the ability to support horizontal beamforming. In suburban/rural scenarios, where vertical beamforming is usually not needed, the performance of a more cost efficient AAS with fewer radio chains is often sufficient. This allows the AAS to adapt the number of layers and determine how to beamform them. He holds both an M.Sc. He has held various positions at Ericsson Research and in RAN system design over the years, and from 1999 to 2014 he worked for Ericsson in Japan and China. The contributors to Ericsson's opinion on this topic are Peter von Butovitsch, David Astely, Christer Friberg, Anders Furuskär, Bo Göransson, Billy Hogan, Jonas Karlsson and Erik Larsson. Applying AAS features to an AAS radio results in significant performance gains because of the higher degrees of freedom provided by the larger number of radio chains, also referred to as Massive MIMO. By changing the phases of the sub-array signals in a certain way, this gain can be achieved in any direction, as shown in section A of Figure 3. Partitioning the antenna into small sub-arrays results in high-gain beams that can be steered over a large range of angles and effectively addresses the interference problems seen with conventional systems. To distinguish between DL layers, a UE needs to have at least as many receiver antennas as there are layers. Channel estimates can be used to determine how to combine the signals received to improve the desired signal power and mitigate interfering signals, either from other cells or within the same cell in the case of MU-MIMO. T-Mobile and Ericsson have worked together to design, build and expand the T-Mobile 5G nationwide network since early in 2018. New 20+1-Port Passive Antenna with 2L8M Bands Antenna 6600 2L 8M 2.0m. The key components to make this data call a success include Ericsson’s commercial radio hardware loaded with special extended-range software, Qualcomm’s Snapdragon X55 5G Modem-RF System with the QTM527 mmWave antenna module, housed in a fixed wireless access (FWA) customer-premises equipment (CPE), presumably supplied by the broadband technology company Casa Systems. The array gain is referred to as the gain achieved when all sub array signals are added constructively (in phase). The timing is now right for the telecom industry to make the technology shift to advanced antenna systems (AAS). There are two basic ways of acquiring the DL channel knowledge between the UEs and the AAS: UE feedback and UL channel estimation. For FDD, where different frequencies are used for UL and DL, the channel is not fully reciprocal. The innovative solution, tested on a live network, was made possible thanks to the new Ericsson 5G mmWave high power antenna-integrated radio AIR 5322, installed at the mobile site on Via Oriolo Romano in Rome, equipped with Ericsson’s extended range software. We have chosen three typical use cases that illustrate different aspects of AAS deployment: rural/suburban, urban low-rise and dense urban high-rise. Networks 5G Radio … in electronic engineering from Dublin City University, Ireland. Apply now » Posted date: Dec 19, 2020 Location: Beijing, 11, CN Company: Ericsson. Recent technology developments have made advanced antenna systems (AAS) a viable option for large-scale deployments in existing 4G and future 5G mobile networks. AIR 4488 Triple-band antenna, 4T/4R, 3 bands, low-band and mid-band, 7 frequency bands AIR4488 3. This has an implication on how to choose antenna array structure in a real deployment scenario with specific coverage requirements. AAS radio = Hardware unit that comprises an antenna array, radio chainsand parts of the baseband, all tightly integrated to facilitate AAS featuresAAS feature = A multi-antenna feature (such as beamforming and MIMO)that can be executed in the AAS radio, in the baseband unit or bothAAS = AAS radio + AAS featuresConventional system = Passive antenna + remote radio unit comprisinga low number (2, 4 or 8) of radio chainsDual-polarized antenna element = Combination of two antenna elementswith orthogonal polarizations with the purpose of enabling diversity anddoubling the number of antenna elements on a given physical area. MIMO works in both UL and DL, but for simplicity the description below will be based on the DL. 3 dB). End-to-end solutions for the construction of 5G radio sites that are both future-proof and cost-effective for mobile networks that will operate profitably. When transmitting, beamforming is the ability to direct radio energy through the radio channel toward a specific receiver, as shown in the top left quadrant of Figure 1. For UL reception of data signals, channel estimates can be determined from known signals received on the UL transmissions. For TDD, the same frequency is used for both UL and DL transmission. Jonas KarlssonJonas Karlsson joined Ericsson in 1993. Swisscom has more than 19,000 employees and is one of the most innovative and sustainable companies in Switzerland. https://www.ericsson.com/.../advanced-antenna-systems-for-5g-networks The AAS needs to have a sufficient number of radio chains to support the relatively large number of sub-arrays. AIR 8828 FDD AIR8828. Bo Göransson | Wireless@KTH | 5G & the multi antenna advantage | 2016-10-06 | Page 28 Ericsson 5G Roadmap 1st 5 Gbps throughput –June 2014 1st Dual Connectivity LTE-5G 1st Multipoint Connectivity with distributed MIMO 5G Radio Prototype field trials in 2016 Ericsson 5G field trial gear achieves peak downlink throughput over 25 Gbps with MU-MIMO The total number of elements determines the maximum gain and the sub-array partitioning allows steering of high gain beams over the range of angles. Ericsson Massive MIMO Macro 5G layer antennas 1. The new solution, tested on a live network, used the new Ericsson 5G mmWave high power antenna-integrated radio AIR 5322, installed at the mobile site on Via Oriolo Romano in Rome, equipped with Ericsson’s extended range software.