In the US, AT&T as well as T-Mobile phones use GSM – and most of the rest of the world uses GSM as well. CDMA in the US is Verizon, Sprint and US Cellular. You need to read up on the subject.
Read moreIs GSM same as 4G?
GSM is a second-generation (2G) cellular technology standard and is, therefore, less capable of providing high-speed data as compared to UMTS, which is a third-generation (3G) technology and LTE, which is a fourth-generation (4G) cellular technology.
Read moreDoes 5G use CDMA or GSM?
Comparison table GenerationTechnologySignal quality/coverage area3GW-CDMASmaller cells and lower indoors coverage on 2100 MHz; equivalent coverage indoors and superior range to GSM on 850/900 MHz.4GOFDMASmaller cells and lower coverage on the S band.5GOFDMADense cells on millimeter waves.Comparison of mobile phone standards – Wikipedia en.wikipedia.org › wiki › Comparison_of_mobile_phone_standards
Read moreWhat bandwidth is LTE?
With its bandwidth of 20 MHz , LTE can achieve speeds of up to 300 Mbit/s downlink and 75 Mbit/s uplink, with a latency of under 20 milliseconds.
Read moreWhat is bandwidth of 5G?
5G can be significantly faster than 4G, delivering up to 20 Gigabits-per-second (Gbps) peak data rates and 100+ Megabits-per-second (Mbps) average data rates .
Read moreWhat is cellular sub6?
Sub-6 GHz 5G refers to 5G deployments using spectrum under 6 GHz . This mostly refers to Sprint’s mid-band 2.5 GHz spectrum as well as the low-band 600 Mhz used by T-Mobile and U.S. Cellular as well as AT&T at 850 Mhz.30 Oca 2020
Read moreHow fast is sub6 5G?
Sub-6 GHz 5G (mid-band 5G), by far the most common, will usually deliver between 100 and 4,400 MBit/s but will have a much further reach than mmWave, especially outdoors. C-Band (n77/n78) will be deployed by various U.S. operators in 2022.
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