O.5 Measurement sequence chart

3GPP45.005GSM/EDGE Radio transmission and receptionTS

O.5.1 General

The measurement sequence charts that are required in all the test cases are defined in this clause.

O.5.2 TTFF Measurement Sequence Chart

The measurement sequence chart for the TTFF test cases, for both MS-assisted and MS-based GANSS, is defined in this subclause.

a) The system simulator sends a RESET MS POSITIONING STORED INFORMATION message with the IE MS POSITIONING TECHNOLOGY set to AGNSS.

b) The system simulator sends a RRLP POSITION CAPABILITY REQUEST message.

c) The MS responds with a RRLP POSITION CAPABILITY RESPONSE message, which includes the MS supported positioning methods, and may include a list of MS supported and MS needed assistance data.

d) If the MS at step (c) indicated needed assistance data, the system simulator provides the requested assistance data that are available as defined in subclause O.6 in one or more RRLP ASSISTANCE DATA messages.

e) Each RRLP ASSISTANCE DATA message is acknowledged by the MS.

f) The system simulator sends a RRLP MEASURE POSITION REQUEST message including the following information elements:

METHOD TYPE set to either ‘MS assisted’ or ‘MS based’, dependent on the test case;
POSITIONING METHODS set to ‘GPS’;
RESPONSE TIME set to 16 seconds;
ACCURACY as defined in subclause O.3.1.1;
MULTIPLE SETS set to ‘1’;
GANSS POSITIONING METHOD set according to the MS capabilities and test case;
REQUIRED RESPONSE TIME as defined in subclause O.3.1.1.

g) The MS may respond with a RRLP MEASURE POSITION RESPONSE message including the LOCATION INFORMATION ERROR IE with ‘Error Reason’ set to ‘GANSS assistance data missing’, and including a request for additional GPS and/or GANSS assistance data.

h) If the MS requested additional assistance data at step (g), the system simulator provides the requested assistance data that are available as defined in subclause O.6 in one or more RRLP ASSISTANCE DATA messages.

i) Each RRLP ASSISTANCE DATA message is acknowledged by the MS.

j) If the MS requested additional assistance data at step (g), the system simulator sends a RRLP MEASURE POSITION REQUEST message with information elements included as specified in step (f).

k) The MS sends a RRLP MEASURE POSITION RESPONSE message including the GANSS LOCATION INFORMATION IE in case of MS-based GANSS, or including the GPS MEASUREMENT INFORMATION and/or GANSS MEASUREMENT INFORMATION IE in case of MS-assisted GANSS.

l) The MS may send one additional RRLP MEASURE POSITION RESPONSE message if the amount of measurement information it needs to send is too large to fit into one single message.

Steps (a) to (l) are repeated for each test instance.