Location Configuration Protocols

How many do we need?

Steve Edge

Qualcomm

OMA - Location Configuration Protocols

• Location Configuration Protocols defined by OMA

• SUPL ULP (User plane Location Protocol) is used to obtain terminal location and convey it to the terminal and/or network (H-SLP or E-SLP)

• RLP (Roaming Location Protocol) is used to request and convey location between SLPs

• MLP (Mobile Location Protocol) is used to request and convey location to a client (SUPL Agent)

• MLP and RLP are also used to support the 3GPP control plane (CP) location solution and are being introduced to support the 3GPP2 CP solution

OMA - Location Configuration Protocols

• Protocol characteristics

• ULP is ASN.1 defined and uses TCP/IP transport and TLS

• MLP and RLP are XML defined and can be transported using various protocols (e.g. HTTP, WSP, SOAP) although only an HTTP 1.1 mapping is currently defined

• SUPL is an endorsed location solution for 3GPP IP based emergency calls and location for 3GPP I-WLAN access

OMA - Location Configuration Protocols

• The Figure shows the roles of MLP, RLP and ULP to support SUPL 1.0

• In SUPL 2.0, a defined protocol (ILP – Internal Location Protocol) is allowed between the SLC and SPC and SUPL INIT transport from the H-SLP (or E-SLP) to the SET may also use UDP/IP and SIP Push

SET

(SUPL Enabled Terminal)

WAP PPG

SMSC/MC

MLS Application/SUPL AgentLr/LCS-z

Le/L1

SLCSPC

V-SLP(SUPL Location Platform)

POTAP (Lup) PAP (Lup)

SMS Telecommuni

cation/Tele Svc

(Lup)

Lup

SLC(SUPL

Location Center)

SPC (SUPL

Positioning Center)

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MLP

RLP

ULP

Lr/LCS-z

SLC

SPC

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Common end-to-end interfaces

H-SLP R-SLP

Lr/LCS-z

RLP

Lup

ULP

WAP Push

SMS

interfaces for proxy mode

Interfaces for non-proxy mode

RLP