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| 13999 | LTE (Long-Term Evolution) (簡訳:LTE（ロングタームエボリューション）) | --- | |
| ComputerWeekly.com | 2023-03-10 05:50 | ????0? | |
| Although LTE is commonly referred to as 4G LTE, LTE is technically slower than 4G but still faster than normal 3G. For this reason, LTE may also be called 3.95G. While LTE speeds reach 100 Mbps, true 4G offers speeds up to 1,000 Mbps. However, different versions of LTE meet 4G speeds, such as LTE-A.Opensignal found that across 87 countries, the average availability of 4G networks was 80%. In 2020, the big three U.S. mobile operators -- AT&T, T-Mobile and Verizon -- scored 90% and above in the 4G availability category. 4G LTE and 5G are replacing 3G across North America and Western Europe, with major 3G networks scheduled to be shut down in 2022.LTE-M delivers data speeds of around 1 Mbps, while NB-IoT supports up to 26 Kbps in downlink. These drastically reduced data speeds increase the battery life of M2M devices that use the IoT cellular standards. For sensors and other devices that need mobility on the cellular network, NB-IoT can support a battery life of up to 10 years. LTE-M can support up to 10 years of battery life on two AA batteries, but only if the device is static and broadcasting for seconds daily. If a device is on, moving about on an LTE network and using LTE-M supported voice features, the battery life will be reduced.There was no global standard for wireless broadband until the advent of LTE. Prior to LTE, GSM had caught on in Asia and Europe, but the major mobile operators in other countries, including the U.S. and Canada, had adopted Code-Division Multiple Access. The goal of LTE was to merge a fragmented market and offer a more efficient network for network operators.802.11n802.11n is an IEEE standard for wireless networking that boosts the speed, dependability and range of wireless transmissions in ... See complete definitionantennaAn antenna is a specialized transducer that converts electric current into electromagnetic (EM) waves or vice versa. See complete definitionservice set identifier (SSID)A service set identifier (SSID) is a sequence of characters that uniquely names a Wi-Fi network. See complete definition -- ???????? | |||
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