11.2.9 Packet Measurement Report

04.603GPPGeneral Packet Radio Service (GPRS)Mobile Station (MS) - Base Station System (BSS) interfaceRadio Link Control / Medium Access Control (RLC/MAC) protocolRelease 1999TS

This message is sent on the PACCH from the mobile station to the network to report measurement results. The message may contain measurement results from the Network Control measurements or from the Extended measurements, but not both simultaneously. More than one message may be required depending on the number of measurements to report. For a (3G) multi-RAT mobile station, report on 3G cells may be included as a result of Network Control measurements.

Message type: PACKET MEASUREMENT REPORT

Direction: mobile station to network

Table 11.2.9.1: PACKET MEASUREMENT REPORT message content

< Packet Measurement Report message content > ::=

< TLLI : bit (32) >

{ 0 | 1 < PSI5_CHANGE_MARK : bit (2) > }

{ 0 < NC Measurement Report : < NC Measurement Report struct > >

| 1 < EXT Measurement Report : < EXT Measurement Report struct > > }

{ null | 0 bit** = < no string > — Receiver compatible with earlier release

| 1 — Additions in release 99 :

{ 0 | 1 { 0 < BA_USED : bit > < 3G_BA_USED : bit > | 1 < PSI3_CHANGE_MARK : bit(2) > } < PMO_USED : bit > } { 0 | 1 < 3G Measurement Report : < 3G Measurement Report struct > > } < padding bits > } ;

< NC Measurement Report struct > ::=

< NC_MODE : bit (1) >

< RXLEV_SERVING_CELL : bit (6) >

{ 0 | 1 < INTERFERENCE_SERVING_CELL : bit (6) > }

< NUMBER_OF_NC_MEASUREMENTS : bit (3) >

{ < FREQUENCY_N : bit (6) >

{ 0 | 1 < BSIC_N : bit (6) > }

< RXLEV_N : bit (6) > } * (val(NUMBER_OF_NC_MEASUREMENTS)) ;

< EXT Measurement Report struct > ::=

< EXT_REPORTING_TYPE: 00 | 01 | 10 >

{ 0 | 1

{ 0 | 1 < I_LEVEL_TN0 : bit (6) > }

{ 0 | 1 < I_LEVEL_TN1 : bit (6) > }

{ 0 | 1 < I_LEVEL_TN2 : bit (6) > }

{ 0 | 1 < I_LEVEL_TN3 : bit (6) > }

{ 0 | 1 < I_LEVEL_TN4 : bit (6) > }

{ 0 | 1 < I_LEVEL_TN5 : bit (6) > }

{ 0 | 1 < I_LEVEL_TN6 : bit (6) > }

{ 0 | 1 < I_LEVEL_TN7 : bit (6) > } }

< NUMBER_OF_MEASUREMENTS : bit (5) >

{ < FREQUENCY_N : bit (6) >

{ 0 | 1 < BSIC_N : bit (6) > }

< RXLEV_N : bit (6) > } * (val(NUMBER_OF_MEASUREMENTS)) ;

< 3G Measurement Report struct > ::=

< N_3G: bit (3) >

{ < 3G_CELL_LIST_INDEX : bit (7) >

< REPORTING_QUANTITY : bit (6) > } * (val(N_3G + 1 )) ;

Table 11.2.9.2: PACKET MEASUREMENT REPORT information element details

TLLI (32 bit field)
This field contains the TLLI of the mobile station. This field is encoded as defined in sub-clause 12.16.

PSI5_CHANGE_MARK (2 bit field)
This field shall contain the value of the PSI5_CHANGE_MARK in the PSI5 message containing the list of frequencies to measure. If the measurement order has been initiated by a PACKET MEASUREMENT ORDER message, the PSI5_CHANGE_MARK parameter shall be omitted from the message.

BA_USED (1 bit field)
3G_BA_USED (1 bit field)
PSI3_CHANGE_MARK
(2 bit field)

In case of NC measurement report, these fields shall be included and contain the value of the BA_IND, 3G_BA_IND and PSI3_CHANGE_MARK respectively in the messages defining the used Neighbour Cell list.

In case PBCCH exists, PSI3_CHANGE_MARK shall be used.
In case PBCCH does not exist, BA_USED and 3G_BA_USED shall be used.

PMO_USED (1 bit field)
This parameter shall contain the value of the PMO_IND in the PACKET CELL CHANGE ORDER or PACKET MEASUREMENT ORDER messages that has modified the used Neighbour Cell list. If no such message has been received, PMO_USED shall be set to zero.

NC_MODE (1 bit field)
This field indicates if the mobile station was in mode NC1 or NC2 when sending the measurement report.

0 Mobile station in mode NC1
1 Mobile station in mode NC2

RXLEV_SERVING_CELL (6 bit field)
This field contains the value of the RXLEV parameter for the serving cell calculated by the mobile station (see 3GPP TS 05.08). This field is encoded as the binary representation of the RXLEV parameter value defined in 3GPP TS 05.08.
Range 0 to 63

INTERFERENCE_SERVING_CELL (6 bit field)
This field contains the average interference level for the serving cell measured on the PCCCH if a valid value is available (measured in packet idle mode, see 3GPP TS 05.08). The field is encoded as the binary representation of the I_LEVEL value defined in 3GPP TS 05.08.

EXT_REPORTING_TYPE (2 bit field)
This field indicates the type of Extended measurement report also indicated by the same parameter in the PSI5 or in the PACKET MEASUREMENT ORDER message (see 3GPP TS 05.08).

bit
2 1
0 0 Type 1 measurement reporting
0 1 Type 2 measurement reporting
1 0 Type 3 measurement reporting
1 1 Reserved.

I_LEVEL_TN0 (6 bit field)
I_LEVEL_TN1 (6 bit field)
I_LEVEL_TN2 (6 bit field)
I_LEVEL_TN3 (6 bit field)
I_LEVEL_TN4 (6 bit field)
I_LEVEL_TN5 (6 bit field)
I_LEVEL_TN6 (6 bit field)
I_LEVEL_TN7 (6 bit field)
These fields contain the I_LEVEL value measured on timeslots 0 through 7, respectively for the frequency specified either in the Packet Measurement Order or in the PSI5 message. . The fields are transferred if the data is available and each field is encoded as the binary representation of the I_LEVEL value defined in 3GPP TS 05.08.
Range 0 to 63

FREQUENCY_N (6 bit field)
This field indicates the frequency/cell upon which the measurement was made. The field is an index into the resulting Frequency/Cell List either for NC- or for EXT- measurements.

NC Measurements

If PBCCH is allocated in the cell, the resulting frequency/cell list for NC Measurements is the GSM Neighbour Cell list defined in sub-clause 5.6.3.2.

If PBCCH is not allocated in the cell, the resulting frequency/cell list for NC Measurements is

– The BA(GPRS) (defined in sub-clause 5.6.3.2) before the MS has acquired the complete GSM Neighbour Cell list from the BCCH messages. In this case, the MS shall not include R99 extension (‘Additions in release 99’) in the PACKET MEASUREMENT REPORT message.

– The GSM Neighbour Cell list (defined in sub-clause 5.6.3.2) after the MS has acquired the complete GSM Neighbour Cell list from the BCCH messages.

EXT Measurements

The ‘EXT Measurements Parameters’ can be repeated either in a sequence of PSI5 message instances or in a sequence of Packet Measurement Order message instances where each message instance can contain one or more sub-lists of frequency (ARFCN) parameters. The sub-lists of either of the messages shall then be concatenated into a resulting frequency list in order of appearance within a message instance and then in order of ascending message instances. Each added frequency position in the resulting frequency list shall then be assigned an ascending index used for measurement reports. If the same frequency is defined more than once in the resulting list, each occurrence will get en index, but measurements shall only be performed and reported for the last added position.

For EXT measurements the FREQUENCY_N = 0 refers to the first frequency within the first message instance and FREQUENCY_N = n refers to the last frequency in the ‘EXT Frequency list struct’ within the last message instance.
Range 0 to 63

BSIC_N (6 bit field)
This field indicates the BSIC of the frequency upon which the measurement was made. For EXT measurements this field shall be include only if the Frequency List Type is type 1 or type 2. For type 1, this field is included if the BSIC was decoded and shall not be included if the BSIC was not decoded. For NC measurements this field shall be included only for frequencies that refer to the BA(BCCH) list. The field is encoded as the BSIC value defined in 3GPP TS 04.08.
Range 0 to 63

RXLEV_N (6 bit field)
This field indicates the measured RXLEV of the frequency upon which the measurement was made (see 3GPP TS 05.08). This field is encoded as the RXLEV value defined in 3GPP TS 04.08.
Range 0 to 63

3G Measurements
Measurement reporting for 3G Cells is defined in 3GPP TS 05.08.

3G_CELL_LIST_INDEX (7 bit field)
This is the index of the i’th reported 3G neighbour cell in the 3G Neighbour Cell List. See sub-clause 5.6.3.1 ("Deriving the 3G Neighbour Cell list from the 3G Neighbour Cell description").

REPORTING_QUANTITY (6 bit field)
This is the reportng quantity for the i’th reported 3G cell. The quantities are defined in 3GPP TS 05.08 for the respective Radio Access Technology.