The only difference between LAC and TAC is that the LAC is the terminology used in GSM/UMTS while the TAC is the terminology used in LTE. … What is Lac and Tac?īoth the LAC and TAC share the same concept of providing the location code of a base station set. The LAC is used as a unique reference to determine the location of a mobile device Mobile devices store the LAC on the SIM card. What is Lac network?Ī cellular network is divided into several area’s and each location area consists of 1 to 65534 radio transmission cells. The served area of a cellular radio access network is usually divided into location areas, consisting of one or several radio cells. The Location Area Code, abbreviated as LAC is the unique number given to each location area within the network. In the Indian 2,2,3 convention of digit grouping, it is written as 1,00,000. What is a lac number?Ī lakh (/læk, lɑːk/ abbreviated L sometimes written lac) is a unit in the Indian numbering system equal to one hundred thousand (100,000 scientific notation: 105). This is a 36bit identity which can be concatenated with the PLMN-Id (PLMN Identifier) to form the NCGI (NR Cell Global Identity).
In 5G, a service provider identifies a cell using an NCI (NR Cell Identity).
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