Configuring Tracking Area Identity Group

The SMF provides configuration to define the supported list of Tracking Areas and Tracking Area Ranges for a PLMN. Upon enabling this configuration, the SMF sends the configured Tracking Area Identity (TAI) to the NRF during the SMF Service Registration.

Use the following configuration to define multiple TAI groups with different names.

configure 
   profile tai-group group_name 
      mcc mcc mnc mnc 
      tac list [ tac_value1 tac_value2 tac_valueN ] 
      tac range start tac_start_value end tac_end_value 
      end 

NOTES:

  • configure : Enters the global configuration mode.

  • profile tai-group group_name : Specifies the name of the TAI Group to enter the profile configuration.

  • mcc mcc_value : Specifies the mobile country code.

  • mnc mnc_value : Specifies the mobile network code.

  • tac list [ tac_value1 tac_value2 tac_valueN ] : This keyword allows you to configure —

    • multiple PLMNs and TAC values within the specified TAI group

    • a maximum of 16 PLMNs within the specified TAI group

    • a maximum of 64 TAC values under a PLMN

  • tac range start tac_start_value end tac_end_value : This keyword allows you to configure —

    • multiple TAC range values

    • a maximum of 64 TAC ranges under a PLMN

    Important

    The SMF ignores TAC range values if the start range value is greater than the end range value.

  • The SMF derives TAC list and TAC range from TAI group or NCGI group configuration. If the NCGI list already includes a TAC, you can skip the TAC configuration under TAI group. However, if the TAC is associated to a different UPF, this behavior is not applicable.