Location Based Services at Heterogeneous Networks

Location Based Services @

Heterogeneous NetworksExtending jSS7 and jDiameter for TelScale GMLC and RestComm

Restconn - Lisbon 2015


So… aren’t Location Based Services already covered for mobile phones with GPS?

... let’s check some facts


Hence…

3+ billion feature phones by 2020 (~34%)

~10% of worldwide coverage only thru GSM/EDGE by 2020

~60% non LTE subscriptions by 2020


Besides, how do we locate devices here?


Further motivational scenarios?


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)

RestconnLisbon 2015

Location Manageme

nt and Geographic areas of a

legacy mobile (GSM)

NetworkBTS 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’sRadio Access Network

Area

Location Area (LA):

Managed by one or more BSCs.

Each LA has its own identifier (LAI)

MAP UL


Location Services architecture in legacy mobile networks: GSM/EDGE


Location Services architecture in legacy mobile networks: UMTS/WCDMA/HSPA+


Location Services architecture in LTE/IMS

Restconn Lisbon 2015

TeleStax TelScale RestComm internetworking


GSM Location service example flow with RestComm

MAP USSD Begin

SIP INVITEUSSI

MLPLCS Req

MAP ATI Req

MAP ATI Resp

MLPLCS Resp

SIP INFOUSSI

MAP USSD End

MAP SRIforSM Req

MAP SRIforSM Resp

SIP BYEUSSI

IM SIP MESSAGE

IM SIP MESSAGE

MAP MT-fwSM

MAP MT-fwSM Ack

MAP USSD Cont

MAP USSD Cont

SIP INFOUSSI


UMTS Location example flow with RestComm

MAP USSD Begin SIP INVITE

USSI MLP

LCS Req

MAP SRIforLCS

MAP SRIforLCS

MLPLCS Resp

SIP INFOUSSI

MAP USSD End

MAP SRIforSM Req

MAP SRIforSM Resp

SIP BYEUSSI

IM SIP MESSAGE

IM SIP MESSAGE

MAP MT-fwSM

MAP MT-fwSM Ack

MAP USSD Cont

MAP USSD Cont

SIP INFOUSSI

MAP PSL (Req)

MAP PSL (Res)


LTE Location example flow with RestComm

SIP INVITEUSSI

MLPLCS Req

SLh Diameter SRIforLCS Req

MLPLCS 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 INFOUSSI

SLg Diameter PSL ReqSLg Diameter

PSL Resp

SIP BYEUSSI SIP INFO

USSI


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>

Thank you!

Q&A?Restconn - Lisbon 2015

[email protected]@telestax.com

mailto:[email protected]

mailto:[email protected]

Location Based Services at Heterogeneous Networks

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