An area consisting of a certain portion or all of the total coverage area of a cell site. One face of a cell antenna, typically
three‐sided, that operates independently of the other sectors. Cell Sector or cell face is a term used only by ANSI US
standards‐based systems. For GSM and other European standards‐based systems, the term sector or face is not used.
Rather, the term “Cell” refers to a specific “sector” area of a cell site. Sectors are generally assigned a unique numerical
identifier.