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. Similarly, when receiving, beamforming is the ability to collect the signal energy from a specific transmitter. The timing is now right for the telecom industry to make the technology shift to advanced antenna systems (AAS). Each stream was capable of transmitting/receiving at more than 350 Mbps. Radio 2238 Triple-band radio … Today's complex antenna systems with multiple frequencies and multiple technologies on the same radio site, put great demands on the ability to create effective solutions. The new site solution for Swisscom introduces 3.5GHz support using a 32TRx radio on existing sites. This scenario calls for an AAS with a large antenna area and the ability to support horizontal beamforming. Another main driver for AAS is the need to meet coverage requirements on new and higher frequency bands. in engineering physics and a Ph.D. in electrical engineering, specializing in signal processing, from Uppsala University, Sweden. There is generally a mix of building types, which creates multipath propagation between the AAS and the UE. Our solutions will accelerate Swisscom’s 5G transformation. In 2016, he earned an MBA from Leicester University in the UK. Along the walls at one of Ericsson's demos, the strip was embedded behind a … Figure 2: A typical antenna array (A) is made up of rows and columns of individual dual-polarized antenna elements (B). 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. Outside of Switzerland, Swisscom operates Fastweb in Italy. The potential diminishes when the mutual interference between streams increases. Ericsson leveraged on the latest Kathrein Mobile Communications (KMC) antenna technology, and designed the Hybrid AIR site solution. Since the radio channel is reciprocal (the same in UL and DL), detailed short-term channel estimates from UL transmission of known signals can be used to determine the DL transmission beams. For conventional non-beamformed systems such as 2T2R, the vertical spread of users in combination with the small ISD creates a situation where many users are outside the vertical main beam of the nearest base station. Billy HoganBilly Hogan joined Ericsson in 1995, and has worked in many areas of core and RAN design and systemization, including as the Senior Specialist for Enhanced Uplink in WCDMA. Bo Göransson | [email protected] | 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 Telecommunications giant Ericsson today announced two new radios with integrated antennas it claims will ease deployment pains and speed the rollout of mid-band 5G. This has an implication on how to choose antenna array structure in a real deployment scenario with specific coverage requirements. We help service providers maintain cutting-edge infrastructure that meets today’s needs and future growth. The size of the array gain, relative to the gain of one sub-array, depends on the number of sub-arrays – for example, two sub-arrays gives an array gain of 2 (i.e. Together with the high site density, this leads to a situation where the signals from interfering base stations are strong, and severe interference problems may occur. For illustrative purposes, we describe only one dimension. MU MIMO is also appropriate at high loads due to the multi-path propagation environment, good link qualities and UE pairing opportunities. By combining multi frequency low band support with the AIR 3239, in a single unit, no extra footprint is needed for massive MIMO 5G. in electrical engineering and engineering physics from Linköping University (Sweden) and a Ph.D. in signal processing from KTH Royal Institute of Technology in Stockholm. Figure 3: An array of sub-arrays supporting high total antenna gain and steerability. The gain and beam width depend on the size of the sub-array and the properties of the individual antenna elements. In order to use MU-MIMO, the system needs to find two or more users that need to transmit or receive data at the very same time. Moreover, the sub-array radiation pattern determines the envelope of the narrow beams (the dashed shape in section C of Figure 3). Radio 4402 for FDD 2. 2. Horizontal beamforming is a very effective feature that provides large gains. The factory is targeted at producing 5G and advanced antenna radio systems for 5G deployments in the United States as that is where Ericsson is seeing a bulk of the initial market deployments. AIR 8828 FDD AIR8828. Steedan MA354 – Low Profile, 4-in-1 Magnetic Mount Combination Antenna with 2*5G/4G MIMO and 2*Wi-Fi 6 MIMO Add to Compare; Steedan MA350 – Low Profile, 5-in-1 Magnetic Mount Combination Antenna with Active GNSS, 2*5G/4G MIMO and 2*Wi-Fi 6 MIMO Add to Compare; Steedan 3-in-1 Magnetic Mount Combination Antenna with GNSS, 5G/4G & Wi-Fi Add to Compare; Steedan – Low Profile 3-in-1 … Compared to the dense urban high-rise scenario, traffic per area unit is lower. Ericsson announces smaller 5G antennas News Wire Feed Light Reading 6/30/2020 Comment (0) STOCKHOLM – Communications service providers can now deploy mid-band 5G … This is usually done by dividing the antenna array into so called sub-arrays (groups of non-overlapping elements), as shown in section C of Figure 2, and by applying two dedicated radio chains per sub-array (one per polarization) to enable control, as shown in section D. In this way it is possible to control the direction and other properties of the created antenna array beam. Expand Collapse. Modern Slavery Statement | Privacy | Legal | © Telefonaktiebolaget LM Ericsson 1994-2021, “At Swisscom, we have rolled out 5G capacity across Switzerland. Multi-antenna techniques, here referred to as AAS features, include beamforming and MIMO. Ericsson Massive MIMO Macro 5G layer antennas 1. Such features are already used with conventional systems in today's LTE networks. Radio 4408 for TDD. Desired AAS characteristics in the dense urban high-rise scenario include an antenna area large enough to ensure sufficient coverage (UL cell-edge data rate). 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. This 448-platform solution with frequencies from 698 MHz up to 3800 MHz received 20+1-ports and measures with 2m height and 448 mm width. An advanced antenna system (AAS) is a combination of an AAS radio and a set of AAS features. Working with Ericsson and deploying the Hybrid AIR, we are now delivering wide mid-band capacity, while re-using established sites and minimizing additional footprint, with the Hybrid AIR. Maximizing the antenna area is important for improving the UL cell-edge data rates, especially for higher frequency bands employing TDD. Finding the most suitable AAS variants to achieve performance gains and cost efficiency in a specific network deployment requires an understanding of the characteristics of both AAS and of multi-antenna features. without impairing the installation object's appearance or design, or people's line of sight. 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. Recent technology developments have made advanced antenna systems (AAS) a viable option for large scale deployments in existing 4G and future 5G mobile networks. Ericsson Spectrum Sharing completely transforms the way 5G is introduced across the world. At the same time population is dense, and the mobile broadband demand is high. 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. With fewer antennas and lower wind load, we can easily install 5G in more dense urban sites, making the process very cost competitive.”, Enabling 5G massive MIMO with innovative hybrid sites, Redefine customer experience in real time, Introduces 5G massive MIMO while reusing existing infrastructure andantenna positions, Faster deployments with one unit for all technologies – enables easy installation, zero added rental costs, Optimal RF and thermal performance by using a single vendor solution. Ericsson Radio System comprises hardware, software and services for radio, RAN Compute, antenna system, transport, power, enclosure and site solutions– all run by a common management system. Figure 4: Suitable AAS configurations, schematic MU-MIMO and SU-MIMO usage ranges, and typical capacity gains in different deployment scenarios. BT said … This is achieved by controlling the transmitted signals in a way that they cancel each other out at the interfered UEs. Ericsson (ERIC) Telefonaktiebolaget LM Ericsson (ERIC) is a Swedish telecommunication equipment … 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. Also, for efficient MU-MIMO, the interference between the users should be kept low. As a result, AAS significantly enhances network performance in both uplink and downlink. This is ideal for urban areas, where the acquisition of new site space is difficult and deployments are time consuming. AAS enables state-of-the-art beamforming and MIMO techniques that are powerful tools for improving end-user experience, capacity and coverage. Using larger sub-arrays for a given antenna area means that fewer radio chains are required. Ericsson Spectrum Sharing introduces a new way of rolling out 5G that re-uses hardware/spectrum/sites, increases coverage of mid/high band, and offer a clear path to 5G stand alone, allowing operators to shift capex investments from new sites to new 5G stand alone use cases. Also, as the number of users grows, the SINR will further deteriorate due to mutual interference between the users. Ericsson sees 5G slowing in Europe but offset by China . Base stations are typically deployed on rooftops, with inter-site distances of a few hundred meters. Today he is a Principal Engineer working in Product Development Unit 4G5G, where he drives the overall strategy and solutions for AAS in 4G and 5G. The beams formed by an AAS are constantly adapted to the surroundings to give high performance in both UL and DL. There are two basic ways of acquiring the DL channel knowledge between the UEs and the AAS: UE feedback and UL channel estimation. 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