Compared to the way fixed network consumer internet access is supplied in the United States, Spanish fixed network access tends to be symmetrical. Uploading of 4K video is the most-obvious driver of need for higher upstream bandwidth. Uploading of HDTV quality video normally requires only single-digit upstream speeds.
Videoconferencing is another consumer app that generally requires more symmetrical bandwidth as well. Gaming and e-learning applications using video arguably also increase the need for more-symmetrical bandwidth.
That noted, downstream entertainment video is the overwhelming driver of bandwidth globally, and arguably drives the primary need for downstream bandwidth. The other issue is that access platforms traditionally have been asymetrical. Newer optical fiber to premises networks tend to feature symmetrical bandwidth. So much hinges on what sort of platform--hybrid fiber coax, mobile network or which generation of optical fiber access is deployed.
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