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2. Cellular frequencies in the United States - Wikipedia

   en.wikipedia.org/wiki/Cellular_frequencies_in...

   There are 51 MTAs, 493 BTAs and 175 EAs in the United States. The Advanced Wireless Services (AWS) bands, auctioned in the summer of 2006, were for 1,710–1,755 MHz, and 2,110–2,155 MHz. The spectrum was divided into blocks: A blocks were for Cellular Market Areas, based on existing cellular (1G) licenses, and were 2 × 10 MHz.

3. Comparison of mobile phone standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_mobile_phone...

   GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM . Time-division multiple access (TDMA) provides multiuser access by chopping up the channel into sequential time slices. Each user of the channel takes turns to transmit and receive signals.

4. List of mobile virtual network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   There are also MVNOs who provide only data service to mobile hotspot devices (mobile broadband providers). Native Wi-Fi calling refers to the ability of mobile phones on the service to seamlessly use Wi-Fi rather than the cellular network to connect normally dialed calls, when enabled. It does not refer to the ability to use third-party ...

5. LTE (telecommunication) - Wikipedia

   en.wikipedia.org/wiki/LTE_(telecommunication)

   LTE stands for Long-Term Evolution [ 7] and is a registered trademark owned by ETSI (European Telecommunications Standards Institute) for the wireless data communications technology and a development of the GSM/UMTS standards. However, other nations and companies do play an active role in the LTE project.

6. Samsung Galaxy S III - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_S_III

   U.S. version: 0.55 W/kg (head) 1.49 W/kg (body) [ 6] The Samsung Galaxy S III (unofficially known as the Samsung Galaxy S3) is an Android smartphone designed, developed, and marketed by Samsung Electronics. Launched in 2012, it had sold more than 80 million units overall, making it the most sold phone in the S series. [ 5] It is the third ...

7. Cell Broadcast - Wikipedia

   en.wikipedia.org/wiki/Cell_Broadcast

   Cell Broadcast. Public warning alerts using embedded Cell Broadcast feature on Android 12. Cell Broadcast ( CB) is a method of sending short messages to multiple mobile telephone users in a defined area at the same time. It is defined by the ETSI 's GSM committee and 3GPP and is part of the 2G, 3G, 4G LTE (telecommunication) and 5G standards. [ 1]

8. Lively (company) - Wikipedia

   en.wikipedia.org/wiki/Lively_(company)

   lively .com. v. t. e. Lively (stylized as Live!y, and known before 2021 as GreatCall) is a connected health technology company based in the United States of America. Since 2018, the company has been a subsidiary of electronics retailer Best Buy. [ 1] Lively offers health and safety products and services for older adults, [ 2] including mobile ...

9. United States Cellular Corporation - Wikipedia

   en.wikipedia.org/wiki/United_States_Cellular...

   United States Cellular Corporation ( doing business as UScellular and formerly known as U.S. Cellular) is an American mobile network operator. Its stock is publicly traded, but Telephone and Data Systems Inc. owns a controlling stake (83% economic and 96% voting power). The company was formed in 1983 and is headquartered in Chicago, Illinois.