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5Gネットワークのアンテナ技術

Antenna Technology for 5G Networks

 

出版社 出版年月電子版価格 ページ数
Heavy Reading
ヘビーリーディング社
2016年6月US$1,495
エンタープライズライセンス
26

サマリー

米国調査会社ヘビーリーディング社(Heavy Reading)の調査レポート「5Gネットワークのアンテナ技術」は、アンテナ市場を分析し、採用用途に注目しつつ、如何に5Gへの移行に適合していくかについて記載しています。ビームフォーミングについてや、10社の主要企業の概要も記載しています

 


 

EXECUTIVE SUMMARY(PDF)

The technology development of 5G networks is gathering pace, as operators and vendors in some countries aim to get pre-standards 5G networks ready within the next two to three years. Antenna research and development (R&D) is an important part of work on the new radio access technology, particularly for achieving increased spectral efficiency in existing frequency bands and addressing challenges of using new bands at much higher frequencies.

Among the most fruitful areas of development are multiple input, multiple output (MIMO), massive MIMO and the beamforming and steering that active antenna arrays enable. There are significant challenges to be overcome to develop the technology in these areas – and competing approaches are likely to persist for some time. One critical issue is that the ecosystem for large active antenna arrays and integrated antenna/radio frequency (RF) systems cannot really develop at scale until it is clear what frequencies are likely to be used for 5G.

In the rest of 2016 and into 2017/18, we expect more trials and demonstrations of the core antenna technologies for the frequency bands currently used for cellular networks (and which are also relevant for 5G), as well as in mmWave bands that are likely to be made available for 5G.

Beamforming approaches and beam-steering algorithms will be refined and improved; the solutions demonstrated so far, while impressive, are by no means ready for live network deployment.

On the device chipset side, we expect that the requirement to understand which frequency bands will be used will inhibit the development of advanced antenna/RF systems for 5G. Moreover, for the full value of the beamforming/steering concept to be realized will require development of steerable beams on the uplink, but there is limited space for radios and filters on a smartphone. A lot of hard work lies ahead.

Antenna Technology for 5G Networks analyzes the market for antennas, looking at the applications in development and considers how they fit into the 5G movement. Further, the report examines beamforming, and profiles 10 leading players in the market.

COMPANIES COVERED

In some respects, networks for 5G will look different from 4G networks, but in other respects 5G represents a clear evolution of today's technology. Successive releases of the 3GPP standards have added functionality to LTE/LTE-Advanced (LTE-A)/LTE-A Pro. As well as providing a parallel development track alongside work on 5G, the LTE work has used some of the same concepts that are likely to be included in 5G. Among these are the use of dual connectivity (connection of the terminal to more than one base station), interworking with WiFi, License Assisted Access at 5 GHz and full-dimension (FD) MIMO. The following excerpt shows how antenna development can help address the functional and technical requirements of 5G networks.

 

Antenna Technology for 5G Networks is published in PDF format.
 



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プレスリリース

[プレスリリース原文]

Spectrum Issues Loom Large for Antennas

Heavy Lifting
Analyst Notes
Danny Dicks
 
 
 
 
6/15/2016

Although standards for 5G won't be finalized for some years, the industry can't wait, and it's forging ahead to develop pre-standards networks for deployment within the next two to three years.

But economies of scale apply to telecom networks and services in a significant way: there are potential sales of hundreds of millions of device and hundreds of thousands of base stations associated with rolling out a new wireless technology; component parts must be manufactured in volumes that mean they are cheap enough to support an investment case.

In the case of antennas and radio equipment, one important factor is that the number of different frequencies to which they are tuned must be kept as small as possible, for reasons of cost and space. You don't want to put more radios and antennas than absolutely necessary into any device or base station, and there is also a limit to the tuneable range of each radio/antenna system. The problem is that not only have 5G technical standards not been agreed upon yet, but neither have the frequencies that will be used.

Some pretty impressive research and development (R&D) work has been going on over the last few years to increase spectral efficiency and throughput, use beamforming and steering to serve more users per base station and show that very high frequencies can be used for cellular communication. However, because no one can be certain which frequencies might end up being used for 5G, building prototypes and testing them has required some degree of flexibility -- not least in the way that testbeds and instrumentation are used.

There is momentum building behind 3.5GHz and 28GHz frequency bands in several countries that are large enough for economies of scale to start to kick in, but the antenna development work has encompassed many more bands than this. Our compilation of trials and demos from the big vendors indicates at least nine different bands that are the subject of publicly announced work (and we suspect that other bands are being tried out in private research).

None of this research effort will be wasted as there is still much to learn about how best to form radio beams, steer them to where the user is, combine signals from multiple antennas, fabricate integrated radios/antennas and explore ways to overcome signal propagation challenges at high frequencies, for instance. But it is likely that vendors whose prototypes match the early 5G frequencies will have a head start in the market.

The latest Heavy Reading report, "Antenna Technology for 5G Networks," looks at the work being done to develop antennas to support the technical and performance specifications for 5G networks, showing how work done in LTE, LTE-Advanced and LTE-Advanced Pro has laid the groundwork. It examines multiple input, multiple output (MIMO) and massive MIMO, and their applicability and limitations and considers how antennas will be built to deal with the very high frequencies that many are proposing should be used in 5G networks. It explains issues of how best to form and steer radio beams so that they track users, and it summarizes the state of antenna R&D work by the big network equipment providers. Finally, the report profiles ten leading companies active in this field.

— Danny Dicks, Contributing Analyst, Heavy Reading

 

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