8.5.63 Logged Measurements Configuration

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

8.5.63.1 General

Figure 8.5.63.1-1: Logged measurements configuration

The purpose of this procedure is to configure the UE to perform logging of measurement results while in IDLE mode, CELL_PCH, URA_PCH and CELL_FACH state when second DRX cycle is used.

NOTE: UTRAN may retrieve stored logged measurement information by means of the UE Information procedure.

8.5.63.2 Initiation

UTRAN initiates the logged measurements configuration procedure to the UE by sending the LOGGING MEASUREMENT CONFIGURATION message.

8.5.63.3 Reception of LOGGING MEASUREMENT CONFIGURATION by the UE

Upon receiving the LOGGING MEASUREMENT CONFIGURATION message the UE shall:

1> if IE "Logged Measurements Configuration Info" is present:

2> if stored, discard the existing logged measurement configuration as well as the logged measurement information as specified in 8.5.66;

2> store the received IEs "Logging Duration", "Logging Interval", "Area Configuration" if included in IE "Logged Measurements Configuration Info" in variable LOGGED_MEAS_CONFIG and IEs "Absolute Time Info", "Trace reference", "Trace recording session" and "TCE Id" in variable LOGGED_MEAS_REPORT_VARIABLE;

2> if the IE "PLMN Identity List" is present, store it in variable LOGGED_MEAS_REPORT_VARIABLE;

2> add the current Registered PLMN to the contents of the IE "PLMN Identity List" in variable LOGGED_MEAS_REPORT_VARIABLE;

2> start timer T326 with the timer value set to the IE "Logging Duration".

NOTE: The UE should not stop timer T326 unless explicitly stated when it moves to another RAT.

1> if IE "Logged ANR configuration Info" is present:

2> if variable LOG_ANR_CONFIG was already stored, discard the existing logged measurement configuration for ANR purpose as well as the associated logged measurement information as specified in 8.5.68;

2> store the received IEs in the IE "Logged ANR configuration Info" in variable LOG_ANR_CONFIG;

2> store the current Registered PLMN in the IE "PLMN Identity" in variable LOG_ANR_REPORT_VARIABLE;

2> store the list of Equivalent PLMNs in the IE "Equivalent PLMN Identity List" in variable LOG_ANR_REPORT_VARIABLE;

2> start timer T327 with the timer value set to the IE "Logging Duration" included in IE "Logged ANR configuration Info".

8.5.63.4 T326 Expiry

When timer T326 expires, the UE shall:

1> release variable LOGGED_MEAS_CONFIG.

The UE is allowed to release stored logged measurements, i.e. to release LOGGED_MEAS_REPORT_VARIABLE 48 hours after T326 expiry.

8.5.63.5 T327 Expiry

When timer T327 expires, the UE shall:

1> stop perfoming ANR measurement and logging, release the variable LOG_ANR_CONFIG.

NOTE: The UE should not stop timer T327 upon transition to Idle mode, when it moves to another RAT or a PLMN not included in the IE "PLMN Identity" or IE "Equivalent PLMN Identity List" stored in variable LOG_ ANR_REPORT_VARIABLE. The UE is allowed to keep the stored logged ANR measurements, i.e. to store LOG_ANR_REPORT_VARIABLE 48 hours after T327 starts.