Paging Parameters

Last updated: January 15, 2009

• CS Paging Identity Type

  This setting determines whether the UE is paged using its IMSI or a TMSI (see Test Set-Originated Connection ). If you wish to page the UE using a TMSI, the test set must first assign a TMSI to the UE during registration ( TMSI Assignment must be set to On when the UE registers with the test set, see Performing a Location Update (CS Domain Registration) ). The TMSI used to page the UE is determined by the TMSI setting.

  GPIB command: CALL:PAGing:IDENtity[:TYPE] .

  This parameter can only be set when call status is Idle .

• Paging IMSI

  If you know the UE's International Mobile Subscriber Identity (IMSI), you can enter it under Paging IMSI and proceed directly to originating a call even if the UE has not registered. Otherwise, you must wait for the UE to report its IMSI value upon registering with the test set. See Performing a Location Update (CS Domain Registration) and Establishing a Connection with the UE .

  GPIB command: CALL:PAGing:IMSI[:SELected]

• TMSI Assignment

  This setting determines whether the test set assigns a TMSI to the UE during the Location Update Procedure (see Performing a Location Update (CS Domain Registration) ). If TMSI Assignment is set to On , when the UE registers with the test set, the test set assigns the UE a TMSI in the Location Update Accept message. The TMSI assigned to the UE is determined by the TMSI setting.

  You must set TMSI Assignment to On before the UE registers in order for a TMSI to be assigned.

  If you do not plan to page the UE using a TMSI, it is recommended that you leave TMSI Assignment set to Off so that the Location Update procedure executes as quickly as possible (if TMSI Assignment is On , the UE must send a TMSI Reallocation Complete message).

  GPIB command: CALL[:CELL]:TMSI:ASSignment .

  This parameter can only be set when call status is Idle .

• TMSI

  TMSI (Temporary Mobile Subscriber Identity) is described in 3GPP TS 25.331 10.3.1.17. It is a 32 bit number, but 3GPP TS 23.003 2.4 indicates "The network shall not allocate a TMSI with all 32 bits equal to 1 (this is because the TMSI must be stored in the SIM, and the SIM uses 4 octets with all bits equal to 1 to indicate that no valid TMSI is available)." Thus, TMSI may be set to any value between 0 and 4294967294.

  When TMSI Assignment is set to On , this setting determines the TMSI that is assigned to the UE during the Location Update Procedure (see Performing a Location Update (CS Domain Registration) ).

  When CS Paging Identity Type is set to TMSI , this setting determines the TMSI that is used to page the UE (see Test Set-Originated Connection ).

  GPIB command: CALL[:CELL]:TMSI[:VALue] .

  This parameter can only be set when call status is Idle .

• Repeat Paging

  When Repeat Paging is set to Off, the test set issues a single PICH page indication and Paging Type I message when you select Originate Call ( CALL:ORIGinate[:AUTO] ).

  When Repeat Paging is set to On, when you select Originate Call ( CALL:ORIGinate[:AUTO] ), the test set sends PICH page indications and Paging Type I messages every DRX Cycle Length (CN Domain) until the UE responds with PRACH preambles and a valid RRC Connection request (see RRC Connection Setup Procedure ) or until End Call ( CALL:END[:AUTO] ) is selected.

  GPIB command: CALL:PAGing:REPeat[:STATe][:SELected]

  This parameter can only be set when operating mode is Cell Off .