Location area identity
 | This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)
|
Inn mobile networks, location area identity (LAI) is a unique identifier assigned to each location area of a Public Land Mobile Network (PLMN).[1]
Overview
[edit]This internationally unique identifier is used for location updating of mobile subscribers. It is composed of a three decimal digit mobile country code (MCC), a two to three digit mobile network code (MNC) that identifies a Subscriber Module Public Land Mobile Network (SM PLMN) in that country, and a location area code (LAC) which is a 16 bit number with two special values, thereby allowing 65534 location areas within one GSM PLMN.
Broadcast
[edit]The LAI is broadcast regularly through a broadcast control channel (BCCH). A mobile station (e.g. cell phone) recognizes the LAI and stores it in the SIM Card. If the mobile station is moving and notices a change of LAI, it will issue a location update request, thereby informing the mobile provider of its new LAI. This allows the provider to locate the mobile station in case of an incoming call.
See also
[edit]References
[edit]- ^ "LAI - Telecom ABC". www.telecomabc.com. Retrieved 2023-09-05.
External links
[edit] | This article related to telecommunications is a stub. You can help Wikipedia by expanding it. |