Page 1 Remote Transaction Protocol LBS Roaming Meeting, Denver January 18, 2007 Remote Transaction Protocol LBS Roaming Meeting, Denver January 18, 2007

Page 2 Remote Transaction Protocol Update Based on the agreement from the San Francisco LBS Roaming Summit QUALCOMM created a draft protocol spec for the Remote Transaction Protocol for PDE interconnection Protocol Spec is on the LBS Wiki Page Interested parties are encouraged to review and comment Ideally the specification could be released as final at the March CDG IRT

Page 3 Sample Call Flow 1

Page 4 Sample Call Flow 2

Page 5 General Packet Format

Page 6 Remote Transaction Protocol Update H-PDE ID / V-PDE ID Identify the H-PDE and V-PDE The H-PDE sets these parameters in the request package The PDE addresses are configurable and are set by mutual agreement among the carriers Session ID Identifies the transactions associated with an IS-801 session at the H-PDE The value is set by the H-PDE and reflected by the V-PDE in the response Transaction ID Identifies the individual transaction The value is set by the H-PDE and reflected by the V-PDE in the response The transaction ID must uniquely identify the transaction at the H-PDE It will be used in combination with the H-PDE identity to identify the transaction at the V-PDE interface

Page 7 Messages Request messageMessage ID Request Assistance Data Request Location Estimate Keep Alive Request Table 4 ‑ 1: Message ID values for messages from H-PDE to V-PDE Response messageMessage ID Provide Assistance Data Provide Location Estimate Reject Keep Alive Response Table 4 ‑ 2: Message ID values for messages from V-PDE to H-PDE

Page 8 Request Messages ParameterM/OTag valueReference ASST_TYPEM LOC_ESTO Table 4 ‑ 6:Request assistance data parameters ParameterM/OTag valueReference LOC_REQM SYSTEM_PARAMO PPMO PRMO LOC_ESTO TIME_OFFSETO Table 4 ‑ 7:Request location estimate parameters

Page 9 Response Messages ParameterM/OTag valueReference BS_CAPO GPS_ACQ_DATAO GPS_LOC_ASST_SPHO GPS_LOC_ASST_CARTO GPS_SENS_DATAO BS_ALMANACO GPS_ALMANACO GPS_EPHEMERISO GPS_NAV_MES_BITSO GPS_ALMANAC_CORO GPS_SAT_HEALTHO ASST_DATA_REJECTO Table 4 ‑ 8:Provide assistance data parameters ParameterM/OTag valueReference LOC_ESTM Table 4 ‑ 9:Provide location estimate parameters

Page 10 Next Steps Group Review of the protocol specification Conference calls as needed Final approval by March CDG IRT