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2. 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.

3. Voice over LTE - Wikipedia

   en.wikipedia.org/wiki/Voice_over_LTE

   Voice over Long-Term Evolution ( acronym VoLTE) is an LTE high-speed wireless communication standard for voice calls and SMS using mobile phones and data terminals. [ 1][ 2] VoLTE has up to three times more voice and data capacity than older 3G UMTS and up to six times more than 2G GSM. It uses less bandwidth because VoLTE's packet headers are ...

4. List of UWB-enabled mobile devices - Wikipedia

   en.wikipedia.org/wiki/List_of_UWB-enabled_mobile...

   Compatible asset tracking network UWB Controller Apple: HomePod Mini: iOS 16.3, iPadOS 16.3 or later: November 2020 Apple's Find My: Apple U1 HomePod (2nd generation) January 2023 Apple U1 [16] AirTag: iOS 14.5, iPadOS 14.5 or later: April 2021 Apple U1 [17] AirPods Pro 2: iOS 15.1, iPadOS 15.1 or later: September 2022 Case only Apple U1 ...

5. 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.

6. 5G - Wikipedia

   en.wikipedia.org/wiki/5G

   Wireless network technologies. In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones. Like its predecessors, 5G networks are cellular networks, in ...

7. Comparison of wireless data standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_wireless...

   Typical 2G standards include GSM and IS-95 with extensions via GPRS, EDGE and 1xRTT, providing Internet access to users of originally voice centric 2G networks. Both EDGE and 1xRTT are 3G standards, as defined by the ITU, but are usually marketed as 2.9G due to their comparatively low speeds and high delays when compared to true 3G technologies.

8. High Speed Packet Access - Wikipedia

   en.wikipedia.org/wiki/High_Speed_Packet_Access

   High-Speed Uplink Packet Access ( HSUPA) is a 3G mobile telephony protocol in the HSPA family. It is specified and standardized in 3GPP Release 6 to improve the uplink data rate to 5.76 Mbit/s, extend capacity, and reduce latency. Together with additional improvements, this allows for new features such as Voice over Internet Protocol (VoIP ...

9. iPhone SE (3rd generation) - Wikipedia

   en.wikipedia.org/wiki/IPhone_SE_(3rd_generation)

   The third-generation iPhone SE (also known as the iPhone SE 3 or the iPhone SE 2022) is a smartphone designed and developed by Apple Inc. It is part of the 15th generation of the iPhone, alongside the iPhone 13 and 13 Mini and iPhone 13 Pro and 13 Pro Max models. Apple announced the third-generation iPhone SE on March 8, 2022, as the successor ...