Table Of Contents - Quectel UC20 GNSS At Command Manual

Contents
About the Document ................................................................................................................................... 2
1 Introduction .......................................................................................................................................... 4
1.1. How to Use GNSS ...................................................................................................................... 4
1.2. NMEA Sentence Type ................................................................................................................. 5
1.3. Introduction of gpsOneXTRA ...................................................................................................... 5
1.4. GNSS Power Saving Management ............................................................................................ 6
1.4.1. DPO (Dynamic Power Optimization) ............................................................................... 6
1.4.2. ODP (On-Demand Positioning) ........................................................................................ 6
2 Description of AT Command .............................................................................................................. 8
2.1. AT+QGPSCFG Configure GNSS ............................................................................................. 8
2.2. AT+QGPSDEL Delete Assistance Data ................................................................................. 11
2.3. AT+QGPS Operate GPS Session .......................................................................................... 12
2.4. AT+QGPSEND Terminate GNSS Session ............................................................................. 13
2.5. AT+QGPSLOC Obtain Fixed Position .................................................................................... 14
2.6. AT+QGPSGNMEA Obtain NMEA Sentences ........................................................................ 15
2.7. AT+QGPSXTRA Enable gpsOneXTRA Functionality ............................................................ 16
2.8. AT+QGPSXTRATIME Inject gpsOneXTRA Time ................................................................... 17
2.9. AT+QGPSXTRADATA Inject gpsOneXTRA Data Manually ................................................... 18
2.10. Introduction of URC................................................................................................................... 19
2.10.1. Expired XTRA Data ........................................................................................................ 19
3 Example .............................................................................................................................................. 21
3.1. Turn On and Off the GNSS Engine ........................................................................................... 21
3.2. Application of GNSS nmeasrc .................................................................................................. 21
3.3. Examples of Injecting gpsOneXTRA ........................................................................................ 22
4 Appendix A Reference ....................................................................................................................... 24
5 Appendix B Summary of Error Codes ............................................................................................. 25
UC20_GNSS_AT_Commands_Manual
UC20 GNSS AT Commands Manual
Confidential / Released
WCDMA Module
3 / 25