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  2. Comparison of mobile phone standards - Wikipedia

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

    Has no built-in limit to the number of concurrent users. Uses precise clocks that do not limit the distance a tower can cover. [7] Consumes less power and covers large areas so cell size in IS-95 is larger. Able to produce a reasonable call with lower signal (cell phone reception) levels. Uses soft handoff, reducing the likelihood of dropped calls.

  3. 5G - Wikipedia

    en.wikipedia.org/wiki/5G

    An Android phone, showing that it is connected to a 5G network. In telecommunications, 5G is the fifth generation of cellular network technology, which mobile operators began deploying worldwide in 2019 as the successor to 4G. 5G is based on standards defined by the International Telecommunication Union under the IMT-2020 requirements, which outline performance targets for speed, latency, and ...

  4. List of wireless network technologies - Wikipedia

    en.wikipedia.org/wiki/List_of_wireless_network...

    5G is a major phase of mobile telecommunications standards beyond the 4G/IMT Advanced standards. NGMN Alliance or Next Generation Mobile Networks Alliance define 5G network requirements as: Data rates of several tens of megabits per second (Mbit/s) should be supported for tens of thousands of users.

  5. 4G - Wikipedia

    en.wikipedia.org/wiki/4G

    A 4G system must meet the performance requirements defined by the International Telecommunication Union in IMT Advanced. 4G supports a range of applications, including enhanced mobile internet access, high-definition streaming, IP telephony, video conferencing, and the expansion of Internet of Things (IoT) applications.

  6. List of wireless network protocols - Wikipedia

    en.wikipedia.org/wiki/List_of_wireless_network...

    Nodes typically connect in a star or mesh topology. While most individual nodes in a WSAN are expected to have limited range (Bluetooth, Zigbee, 6LoWPAN, etc.), particular nodes may be capable of more expansive communications (Wi-Fi, Cellular networks, etc.) and any individual WSAN can span a wide geographical range. An example of a WSAN would ...

  7. Cellular frequencies in the United States - Wikipedia

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

    D, E, and F blocks covered huge areas of the country, typically several states at a time, and covered 2 × 5 MHz for D and E blocks, 2 × 10 MHz for F. [5] The 700 MHz band was auctioned in early 2008 using spectrum previously used by television stations' analog broadcasts, with Verizon Wireless and AT&T Mobility winning the majority of ...

  8. Timing advance - Wikipedia

    en.wikipedia.org/wiki/Timing_advance

    This limit of 63 × 550 metres is the maximum 35 kilometres that a device can be from a base station and is the upper bound on cell placement distance. A continually adjusted TA value avoids interference to and from other users in adjacent timeslots, thereby minimizing data loss and maintaining Mobile QoS (call quality-of-service).

  9. Mobile phone signal - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_signal

    However, there are different formulas for 2G, 3G and 4G networks. In GSM networks, ASU maps to RSSI (received signal strength indicator, see TS 27.007 [ 3 ] sub clause 8.5). dBm = 2 × ASU - 113, ASU in the range of 0.31 and 99 (for not known or not detectable).

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