About the parameters of the 4G base station

TAI

LTE/EPC identifies the user location with a Tai, similar to the 2g/3g location area Lai and the routing area Rai, a TA can be composed of one or more cells. When the Tai change occurs in the LTE user movement, the terminal needs to initiate a Tau tracking zone update to the Mme, which contains the user's Tai.

Tai is made up of three parts of Mcc+mnc+tac. Where: TAC: Tracking Area code, 2 bytes, with 16 binary representation as X1 X2 x3 x4,tac FQDN Format: TAC-LB<X3X4>.TAC-HB<X1X2>.TAC.EPC. Mnc<mnc>.mcc<mcc>.3gppnetwork.org. Since the TAC uses a LAC different FQDN format, the TAC and LAC can be used in overlapping.

TAC code number planning and the LAC planning and distribution Unified, L1L2 by the group unified distribution, L3L4 by the province distribution, each branch priority to enable the local GSM network LAC the same TAC code number. Wireless coverage of the same TA, try not to be located in different MSC pool coverage, so as to facilitate the deployment of subsequent CSFB.

ecgi

ECGI is composed of two parts of Plmn+eci, ECI consists of Enodeb-id+cell-id two parts

Cell-id

Cell-id is the Eutran community identification, cellid by the branch office, the value range 0~255 (decimal)/0x00-0xff (hex), all 0 of the code is not used.

About the parameters of the 4G base station