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  2. Carpenter v. United States - Wikipedia

    en.wikipedia.org/wiki/Carpenter_v._United_States

    Carpenter v. United States, 585 U.S. 296 (2018), is a landmark United States Supreme Court case concerning the privacy of historical cell site location information (CSLI). The Court held that the government violates the Fourth Amendment to the United States Constitution when it accesses historical CSLI records containing the physical locations of cellphones without a search warrant.

  3. Preferred Roaming List - Wikipedia

    en.wikipedia.org/wiki/Preferred_Roaming_List

    The Preferred Roaming List (PRL) is a database residing in a wireless (primarily CDMA) device, such as a cellphone, that contains information used during the system selection and acquisition process. In the case of R-UIM -based CDMA devices, the PRL resides on the R-UIM. The PRL indicates which bands, sub bands, and service provider identifiers ...

  4. Roaming - Wikipedia

    en.wikipedia.org/wiki/Roaming

    Technical definition. In more technical terms, roaming refers to the ability for a cellular customer to automatically make and receive voice calls, send and receive data, or access other services, including home data services, when travelling outside the geographical coverage area of the home network, by means of using a visited network.

  5. 5G is the latest network of wireless technology. It’s used to transmit data between appliances, like mobile phones and Bluetooth devices.

  6. Stingray phone tracker - Wikipedia

    en.wikipedia.org/wiki/Stingray_phone_tracker

    The StingRay is an IMSI-catcher with both passive (digital analyzer) and active (cell-site simulator) capabilities. When operating in active mode, the device mimics a wireless carrier cell tower in order to force all nearby mobile phones and other cellular data devices to connect to it. [9][10][11] The StingRay family of devices can be mounted ...

  7. 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.

  8. Cellular network - Wikipedia

    en.wikipedia.org/wiki/Cellular_network

    The most common example of a cellular network is a mobile phone (cell phone) network. A mobile phone is a portable telephone which receives or makes calls through a cell site (base station) or transmitting tower. Radio waves are used to transfer signals to and from the cell phone. Modern mobile phone networks use cells because radio frequencies ...

  9. Apple–FBI encryption dispute - Wikipedia

    en.wikipedia.org/wiki/Apple–FBI_encryption_dispute

    Apple–FBI encryption dispute. An iPhone 5C, the model used by one of the perpetrators of the 2015 San Bernardino attack. The Apple–FBI encryption dispute concerns whether and to what extent courts in the United States can compel manufacturers to assist in unlocking cell phones whose data are cryptographically protected. [1]