Last updated: 2014-11-28
If BCCH Update Page is set to Auto, when you change a parameter that causes a Broadcast Channel (BCCH) Update Procedure (SIB Contents) (which only occurs when call status is idle), the test set updates its BCCH information and sends a Paging Type I message to the UE telling it to re-read the BCCH. If BCCH Update Page is set to Inhibit , when you change a BCCH parameter that would normally cause a BCCH Update procedure, the test set updates its BCCH information but does NOT send a Paging Type I message to the UE.
If your UE does not support the BCCH Update procedure, set this field to Inhibit. However, the UE will then be unaware of the changes to the BCCH. To force your UE to re-read the BCCH, you can do one of the following:
Originate a call and then release it.
Cause the UE to perform a cell re-selection by changing the Scrambling Code and Cell Identity.
Turn the UE off and then back on.
You may also use this field to reduce the amount of signalling between the test set and UE as follows: if you need to change many BCCH parameters, set this field to Inhibit, change all of the parameters except one, set this field to Auto, then change the final parameter. That way, only one Paging Type I message is sent to the UE.
GPIB Command: CALL[:CELL]:BCCHannel:UPDate:PAGE
This parameter specifies whether the PS domain information is present in SIB 1 or not. If it is absent, the UE will not attempt to initiate any packet switched services, like GPRS Attach or PDP Context Activation, with the test set.
GPIB Command: CALL[:CELL]:PSDomain
See LAC (Local Area Code). This setting can only be changed when call status is Idle . If BCCH Update Page is set to Auto and you change this setting while your UE is camped to the test set, the test set performs a Broadcast Channel (BCCH) Update Procedure (SIB Contents). If BCCH Update Page is set to Inhibit (the default value) and you change this setting while your UE is camped to the test set, you must force your UE to re-read the BCCH to observe the change.
GPIB Command: CALL[:CELL]:MCCode[:SELected]
See LAC (Local Area Code). This setting can only be changed when call status is Idle . If BCCH Update Page is set to Auto and you change this setting while your UE is camped to the test set, the test set performs a Broadcast Channel (BCCH) Update Procedure (SIB Contents). If BCCH Update Page is set to Inhibit (the default value) and you change this setting while your UE is camped to the test set, you must force your UE to re-read the BCCH to observe the change.
GPIB Command: CALL[:CELL]:MNCode[:SELected]
The Local Area Code, together with MCC (Mobile Country Code) and MNC (Mobile Network Code) identify the location areas within the system coverage area.
GPIB Command: CALL[:CELL]:LACode[:SELected]
This parameter determines the Routing Area Code in the SIB 1 broadcast message. The RAC 16 is only included in SIB 1 when the PS Domain Information is set to Present.
The RAC is a fixed length code (of 1 octet) identifying a routing area within a location area (see 3GPP TS 23.003 4.2).
When the BCCH Update Page is set to Present, this parameter specifies the Routing Area Code in the SIB 1 broadcast message.
GPIB Command: CALL[:CELL]:RACode[:SELected]
3GPP TS 25.331 10.3.2.2 defines cell identity as a 28 bit number which unambiguously identifies a cell within a PLMN (Public Land Mobile Network). The Cell Identity parameter in the test set allows you to input a decimal value between 0 and 268435455, which is then transmitted to the UE as a 28 bit number, identifying the test set.
This parameter is transmitted in SIB 3 on the BCCH (see Broadcast Channel (BCCH) Update Procedure (SIB Contents)).
GPIB Command: CALL[:CELL]:IDENtity[:SELected]
When ATT (IMSI Attach) Flag State is Off, the test set will not perform IMSI attach or detach procedure.
GPIB Command: CALL[:CELL]:ATTFlag[:STATe]
DRX (Discontinuous Reception) Cycle is defined in 3GPP TS 25.304 3.1 as "Individual time interval between monitoring Paging Occasion for a specific UE." 3GPP TS 25.331 8.6.3.1a states "The UE shall determine its idle mode paging occasions and PICH monitoring occasions for that CN domain..., based on the stored CN domain specific DRX cycle length, when using DRX in idle mode." This setting determines the length of the DRX cycle that the UE uses while in idle mode.
GPIB Command: CALL[:CELL]:DRX:CLENgth
A TD-SCDMA network can operate in either Network Mode I or Mode II.
In Mode I the MSC (Mobile Switching Centre) and the SGSN (Serving GPRS Support Node) are connected together. The primary consequence of Mode I is that UEs are allowed to perform combined GPRS Attach & IMSI Attach procedures and combined Location Update & Routing Area Update procedures.
In Mode I the UE is not required by the standards to use the combined procedures, although it is likely to do so. It is likely that the UE will only do a combined GPRS attach procedure on power up.
In Mode II the MSC and SGSN are not inter-connected. In this case, the UE is forced into doing separate GPRS Attach and IMSI Attach procedures and separate Routing Area Update and Location Area Update procedures.
GPIB Command: CALL[:CELL]:NMOPeration:TDSCdma
This setting specifies which 3GPP TD-SCDMA standard version the signalling messages will comply with during the call setup procedure. When Auto is selected, the protocol revision will be based on the UE Reported Access Stratum Release Indicator, see UE Access Stratum Rel Ind.
Setting up a HSDPA service call requires the protocol revision to be revision 5 or above. You can either set the Protocol Revision Control to be Revision 5, or set it to Auto if the UE Reported Access Stratum Release Indicator is 5 or above.
GPIB Command: CALL:PREVision:CONTrol
While in active cell operating mode, the test set broadcasts the System Information Message on the BCCH. The System Information Message consists of a Master Information Block (MIB) and several System Information Blocks (SIBs 1, 2, 3, 5, 7 and 11). The information in these SIBs helps the UE (mobile station) successfully communicate with the network.
The user-settable parameters contained in the MIB and SIBs are listed below. When you change any of these parameters, the test set changes the information it sends on the BCCH accordingly. Changing any of the parameters causes the test set to perform a BCCH update procedure if the call status is idle and BCCH Update Page is set to Auto (if the test set is on a connection with a UE, the test set will post an error if you try to change any of these parameters). During a BCCH update procedure, the test set sends a Paging Type I message to the UE indicating that it needs to re-read the BCCH. If your UE does not support the BCCH update procedure, you may set BCCH Update Page to Inhibit, which prevents the test set from sending a Paging Type I message to the UE (the test set still updates the BCCH). However, note that the UE will then be unaware of the changes in the BCCH.
MIB Settable Parameters:
SIB 1 Settable Parameters:
SIB 3 Settable Parameters:
SIB 5 Settable Parameters:
SIB 11 Settable Parameters: