Mobile phones

Mobile phones

Industry: Mobile communications

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Mobile phones

Spectrum allocation

Mobile communications; Mobile phones

Federal government assignment of a range of frequencies for a category of use or uses. For example, the FCC allocated the 1900 MHz band for personal communications services. Allocation, accomplished ...

Spectrum assignment

Mobile communications; Mobile phones

Federal government authorization for use of specific frequencies or frequency pairs within a given allocation, at specific geographic locations.

Spectrum cap

Mobile communications; Mobile phones

A limit to the allocated spectrum designated for a specific service.

Spread spectrum

Mobile communications; Mobile phones

Initially devised for military use, this radio transmission technology "spreads" information over greater bandwidth than necessary to resist jamming and other interference.

Standby time

Mobile communications; Mobile phones

The amount of time you can leave your fully charged cellular portable or transportable phone turned on before the phone will completely discharge the batteries. See Talk Time.

Stratospheric platform

Mobile communications; Mobile phones

Blimp-like platform for wireless telephone service in urban areas.

Strongest signal

Mobile communications; Mobile phones

The concept that a wireless 911 call should be routed to the cell site with the strongest link to the phone, regardless of which carrier holds the caller as a customer. A shortcoming is that strength ...