Fernando Mendioroz - Location Based Services at Heterogeneous Networks. Extending jSS7 and jDiameter for TelScale GMLC and Restcomm.

1. Location Based Services
@
Heterogeneous Networks
Extending jSS7 and jDiameter for TelScale GMLC and RestComm
Restconn - Lisbon 2015

2. Restconn - Lisbon 2015

3. Restconn - Lisbon 2015
So… aren’t Location Based Services already covered for
mobile phones with GPS?
... let’s check some facts

4. Restconn - Lisbon 2015
Hence…
 3+ billion feature phones by 2020 (~34%)
 ~10% of worldwide coverage only thru GSM/EDGE by 2020
 ~60% non LTE subscriptions by 2020

5. Restconn - Lisbon 2015
Besides, how do we locate devices here?

6. Restconn - Lisbon 2015
Further motivational scenarios?

7. Restconn - Lisbon 2015
Location Based Services methods in Cellular Networks…
 Retrieve radio access entities Identifiers from the HLR
(Cell/Location Area IDs)
 Trigger procedures at the Radio Access Network for
location estimate in Universal Coordinates, e.g.:
 Observed/Uplink Time Difference of Arrival (O/UTDOA)
 Enhanced Observed Time Difference (E-OTD)
 Timing Advance (TA)
 Angle of Arrival (AoA)

8. Restconn - Lisbon 2015

9. Restconn
Lisbon 2015
Location
Management
and
Geographic
areas of a
legacy mobile
(GSM)
Network
BTS coverage area.
Each cell/sector has a
unique Global Cell
Identifier (GCI),
periodically updated at
the HLR via a MAP UL
between MSC/VLR and
HLR
Group of Location Areas
managed by a single
MSC/VLR
MNO’s
Radio Access Network
Area
Location Area (LA):
Managed by one or
more BSCs.
Each LA has its own
identifier (LAI)
MAP UL

10. Restconn - Lisbon 2015
Location Services architecture in legacy mobile networks: GSM/EDGE

11. Restconn - Lisbon 2015
Location Services architecture in legacy mobile networks: UMTS/WCDMA/HSPA+

12. Restconn - Lisbon 2015
Location Services architecture in LTE/IMS

13. Restconn
Lisbon
2015
TeleStax TelScale RestComm internetworking

14. Restconn
Lisbon
2015
GSM Location service example flow with RestComm
MAP
USSD Begin
SIP INVITE
USSI
MLP
LCS Req
MAP
ATI Req
MAP
ATI Resp
MLP
LCS Resp
SIP INFO
USSI
MAP
USSD End
MAP
SRIforSM Req
MAP
SRIforSM Resp
SIP BYE
USSI
IM
SIP MESSAGE
IM
SIP MESSAGE
MAP
MT-fwSM
MAP
MT-fwSM Ack
MAP
USSD Cont
MAP
USSD Cont
SIP INFO
USSI

15. Restconn
Lisbon
2015
UMTS Location example flow with RestComm
SIP INVITE
USSI
MLP
LCS Req
MAP
SRIforLCS
MAP
SRIforLCS
MLP
LCS Resp
SIP INFO
USSI
MAP
USSD End
MAP
SRIforSM Req
MAP
SRIforSM Resp
SIP BYE
USSI
IM
SIP MESSAGE
IM
SIP MESSAGE
MAP
MT-fwSM
MAP
MT-fwSM Ack
MAP
USSD Cont
MAP
USSD Cont
SIP INFO
USSI
MAP
PSL (Req)
MAP
PSL (Res)

16. Restconn
Lisbon
2015
LTE Location example flow with RestComm
SIP INVITE
USSI
MLP
LCS Req
SLh Diameter
SRIforLCS Req
MLP
LCS Resp
MAP
SRIforSM Req
MAP
SRIforSM Resp
IM
SIP MESSAGE
IM
SIP MESSAGE
MAP
MT-fwSM
MAP
MT-fwSM Ack
SLh Diameter
SRIforLCS Resp
SIP INFO
USSI
SLg Diameter
PSL ReqSLg Diameter
PSL Resp
SIP BYE
USSI
SIP INFO
USSI

17. Restconn
Lisbon
2015
RestComm API
POST response <RestcommResponse>
<Location>
<Sid>CAfa51b104354440b09213d04752f50271</Sid>
<ParentSid/>
<DateCreated>2015-10-31T03:41:14.488-06:00</DateCreated>
<DateUpdated>2015-10-31T03:41:14.488-06:00</DateUpdated>
<DateExecuted>2015-10-31T03:41:14.488-06:00</DateExecuted>
<AccountSid>ACae6e420f425248d6a26948c17a9e2acf</AccountSid>
<Source>+598995498785</Source>
<PhoneNumber>+59897018375</PhoneNumber>
<LocationType>current</LocationType>
<LocationPrecision>UniversalCoordinates</LocationPrecision>
<Status>successful</Status>
<LocationData>
<GlobalCellId>90183B</GlobalCellId>
<LocationAreaId>751</LocationAreaId>
</MobileNetworkCode>
</MobileCountryCode>
<AgeOfLocationInfo>0</AgeOfLocationInfo>
</NetworkEntityAddress>
<DeviceLatitude>34.541079S</Latitude>
<DeviceLongitude>56.1421274W</Longitude>
</LocationData>
<LocationResponseTime>27</LocationResponseTime>
</UserStatus>
<ApiVersion>1.0</ApiVersion>
<Uri>/2012-04-
24/Accounts/ACae6e420f425248d6a26948c17a9e2acf/Location/CAfa51b104354440b09213d04752f50271</Uri>
<Location>
</RestcommResponse>

18. Thank you!
Q&A?
Restconn - Lisbon 2015