Given that good time-to-content requires a minimum uplink speed and a minimum downlink speed, the probability of not meeting a target time-to-content of four seconds is even higher.Īnalyzing the network performance statistics also revealed the root causes for limited app coverage. It was found that the probability of a smart device not getting an uplink speed of at least 300 kbps can be as high as 20 percent during peak hours. LTE network performance statistics from metropolitan areas around the world were analyzed. Target time-to-content not being met in live LTE networks In most cases, 1 Mbps was clearly insufficient, while time-to-content was reduced by 1 second or more as measurements were made at 3, 5 and even 20 Mbps in the downlink, depending on the website. On the other hand, with an unrestricted uplink (5 Mbps provided by the LTE lab network), there was a wide variation in how much downlink speed was required to render the content within the same 4 second target. The measurements showed that, with an unrestricted downlink (20 Mbps provided by the LTE lab network), an uplink of at least 300 kbps was required to consistently meet a target time-to-content of 4 seconds or less. Ultimately, it is up to each mobile operator to define app coverage targets depending on subscriber expectations. Benchmarking some of the most popular global and local websites – including e-commerce, e-banking, news and entertainment – it was found that many pages require an uplink speed of at least 300 kbps to meet a target time-to-content of 4 seconds or less. However, once uplink speed drops below a certain threshold, it becomes the bottleneck, limiting the speed at which content can be transferred in downlink.Īpp coverage can be measured in terms of time-to-content, defined as the time from when a user requests online content until it is rendered on a smart device’s display. Often it is the speed of the downlink (from the network to the device) that determines a good time-to-content, as many popular apps receive more data in downlink than they send in uplink. Nonetheless, many mobile broadband networks do not consistently provide the performance required for a responsive experience. This allows them to effectively receive and retransmit information without risk of overlap or mixed reception from other signal bands.Providing good network performance is an important differentiator for mobile operators, and has a significant impact on both subscriber loyalty and Net Promoter Score (NPS). Each of these has its own dedicated uplink frequency which is not utilized by any other transmission source. Finally, at the lowest end of the satellite transmission range, the C band operates between 3.7 and 4.2 GHz downlink and is ideal for voice and data transmission because its lower frequency makes it less susceptible to adverse weather conditions. The lower frequency X band, between 7.25 and 7.75 GHz downlink, is a low frequency signal used predominantly by military forces for long-range communications. This is referred to as the high frequency band of radio wave transmission, as the waves used to transmit signals are very close together. Consumer broadcasts and publicly operated companies rely on Ka and Ku bands, which operate between 10.9 and 20 gigahertz downlink. In all, there are four commonly used satellite transmission bands.
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