動画・データ・音声のユーザーエクスペリエンス評価｜Umetrix

Assuring video quality across mobile networks is complicated, with a myriad of dynamic challenges. These challenges can be overcome through comprehensive testing, but there are several different ways to measure video performance. Rather than analyzing packets or frames for diagnostic testing, many performance evaluation methods use pixel comparisons of the source versus the delivered video to determine overall quality. This is a common standardized method, but unfortunately it is not applicable to most Over-the-Top (OTT) streaming applications. Now there’s something new.

Mission critical communications have long relied on legacy TETRA and P25 technologies. While cellular services have evolved over the past decade to provide wideband audio, multimedia calling, and high bandwidth data connections, the first responders who use LMR (Land Mobile Radio) systems haven’t moved ahead at the same pace. But neither has cellular been ready to provide the essential critical communications capabilities to allow it to be a viable alternative.

現在のゲームユーザーはより低いレイテンシーとより良いユーザーエクスペリエンスを求めています。新しいテストおよび保証プラットフォームはオペレータとそのハイパースケーラ パートナーがエッジゲームのユースケースを正確にテストし、よりよく管理することを目的としたソリューションを提供することができます。

Automation is simplifying and streamlining live network field testing to assure superior performance of devices and networks.

As 5G rolls out in numerous global markets, service providers need to be sure their new networks live up to the high expectations. But as 5G technologies are radically more complex, there are important differences in critical areas of performance testing that cannot be ignored.

Video is steadily rising toward becoming the de facto standard for personal communications. Expanding beyond traditional telecommunications and cable networks, more and more players are entering the arena to deliver richer multimedia experiences capable of high-quality video calling, streaming, broadcast and virtual reality. For content providers and distribution channels alike, it is important to note that each type of video has its own unique characteristics and challenges that can greatly affect the user experience. Understanding these complexities is key.

Streaming video services are now pervasive, and with wide availability of high performing cellular and broadband networks, video-over-mobile is truly exploding. But in delivering the high-quality experience that viewers now expect, dozens of factors come into play at every stage - from servers to networks to a multitude of devices – that can adversely affect video quality.

現在の公共安全ネットワークは通常、音声中心であり、非常に低いデータレートのみをサポートしています。しかし、PSセルラーが、高画質のビデオ通話、ストリーミング、ブロードキャスト、偵察など、新たなマルチメディアエクスペリエンスを提供します。ただし、ビデオのタイプそれぞれに固有の特性と課題が存在し、ユーザーの干渉体験を大きく左右します。こうした複雑性を理解することが重要です。