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Global Standards CollaborationGSC#10

28 August – 2 September 2005Sophia Antipolis, France

gsc10_joint_4.2, Emergency Communications

TIA TR-45 Standards Work Program on Wireless Priority

Service (WPS) for CDMA SystemsPresented by:

Cheryl Blum

Lucent Technologies

Agenda Item:

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CDMA WPS – Background and Assumptions WPS is a voluntary service based on FCC R&O 00-242 (WT Docket

No. 96-86) for Priority Access Service WPS provided only to National Security/Emergency Preparedness

(NS/EP) personnel in key leadership positions authorized by the National Communications System (NCS), and assigned one of five priority levels

WPS being developed over two technology tracks – CDMA and GSM

WPS intended for circuit-switched voice and data calls WPS standards work in TR-45.2 closely aligned with completed

CDMA WPS Industry Requirements (IR) WPS requires no modifications to the radio interface or Mobile

Stations (MSs) CDMA WPS assumes TIA/EIA-95-A + TSB-74 or later MSs

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Wireless Network

Mobile Station (MS)

Wireless Priority Service Center

(WPSC)

Signaling

Signaling and User Data

Network Reference Model for CDMA WPS

Home Location Register (HLR)/Authentication Center (AC)

Visitor Location Register (VLR)

PSTN/ISDN

MSC

Mobile Switching Center (MSC)

Inter-Working Function (IWF)

*FC+DN

Base Station (BS)

FC – Feature CodeDN - Directory Number

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Definitions WPS Call

A call originated by a WPS User by dialing *FC prefix followed by a valid DN A WPS Call may receive priority treatment in the originating wireless network (radio

access as well as switching network) and the terminating wireless network (if the call terminates to a wireless network)

Government Emergency Telecommunications Service (GETS) Call* A call originated by an NS/EP individual by dialing a GETS DN (e.g., 1-XXX-XXX-

XXXX) Unlike a WPS call, a GETS Call from an MS does not receive priority treatment in the

originating radio access network, although priority treatment is provided in the wireless switching network and the terminating wireless network (if the call terminates to a wireless network)

NS/EP Call The term NS/EP Call refers to a GETS Call or a WPS Call

* A GETS call is routed to a GETS IXC network, which validates caller’s GETS PIN, collects a destination DN from the caller through prompts, and the completes the call to the destination upon validation of PIN.

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WPS for CDMA Systems – Service Operation

WPS invoked on a per-call basis by dialing the star digit code (*FC) + DN WPS User’s MS validated by Wireless Priority Service Center (WPSC),

which also stores the priority level WPS Call request queued when no radio traffic channel is available at

the originating MSC/BS When a radio traffic channel becomes available, WPS Call is completed

with NS/EP call indication and the priority level information in the network call setup signaling (i.e, ISUP)

Priority treatment (e.g., trunk queuing) provided in the switching network when congestion is encountered

Priority treatment (i.e., queuing) provided for NS/EP Calls in the terminating MSC/BS if no radio traffic channels are available

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CDMA WPS Standard Workplan

Project No. 3-0054 (PN-3-0054) initiated 12/2001 PN-3-0054 Editor – Atul Thaper, Telcordia Technologies

TIA Letter Ballot 02/2004

Ballot Review 04/2004

Publication of PN-3-0054 (as TIA-917) 2Q2004

Note: TIA-917 expected to be enhanced to incorporate an alternate HLR-based solution currently being addressed in the CDMA WPS IR effort.

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Acronyms

AC Authentication Center

BS Base Station

CDMACode Division Multiple Access

DN Directory Number

FCC Federal Communications Commission

GETS Government Emergency Telecommunications Service

HLR Home Location Register

ISDN Integrated Services Digital Network

ISUP ISDN User Part

IR Industry Requirements

IWF Inter-Working Function

IXC Inter-Exchange Carrier

MS Mobile Station

MSC Mobile Switching Center

NCS National Communications System

NS/EP National Security/Emergency Preparedness

PIN Personal Identification Number

PN Project Number

PSTN Public Switched Telephone Network

R&O Report and Order

TIA Telecommunications Industry Association

VLR Visitor Location Register

WPS Wireless Priority Service

WPSC Wireless Priority Service Center

WT Wireless Telecommunications (Bureau of FCC)

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Thank You!MercieDanke gracias Grazie

Arigato Kamsa Hamaida

Xie_XieThoinks, Moite

Cheers