HP – PTT

Nextel

NEXTEL PERU

Nextel Peru already finished the deployment of its UMTS (3G) Network.

It allows to provide new services to the customers, like:

• Call & Videocall

• VAS services

• Broadband connection

• Smartphones

NEW SERVICES = MAYOR REVENUE GENERATING OPPORTUNITIES

HP-PTT

High Performance Push To Talk

Qualcomm already desing a solution for

HP-PTT using a 3G Network, it is called

QCHAT.

The QChat provides a method of instant

connection and two-way communication

between users.

The handsets and server software allow

users to connect instantaneously with

other Qchat users.

Enables one-to-one (private) and one-to-

many (group) calls over the 3G Networks.

Dynamic management of group

membership by subscribers.

HP-PTT

Ad hoc creation of chat groups on the handset, in addition to

the standing groups that an administrator may establish.

QChat is able to interoperate with iDEN push-to-talk handsets

on the Nextel National Network.

QChat

How QChat Works

QChat users can connect to each

other worldwide, in either private

or group calls, with the simple

push of a button like iDEN. It uses

voice-over Internet Protocol (VoIP)

technologies to allow subscribers

to communicate by using a PTT

button.

QChat calls are created by

combining separate point-to-point

connections between each IP

endpoint; the process is managed

by the QChat Applications Server,

which is deployed on the carrier’s

IP-based Wide Area Network

(WAN).

USIM

One of the keys for Qchat service is the SIM Card information, if there

isn’t this parameters HP-PTT service is not posible. Those parameters

are needed for QChat

• Username Defined in QChat DB

• Alternative Address 1 UFMI

• Alternative Address 2 PTN

• Call Type Capability Barring/unbarring

• Network Domain ID Operator

• Call Restrictions Restrictions

Melody

In other hand, the Device Information for HPPTT service is a very

important part of the System. The Device parameters can be divided in:

• Dev Info

• Dev Detail

• FUMO

• HPPTTFF

• HPPTT Defaults

• HPPTT UserDef

Qchat Client

IMEI Tracking

• Subscriber swaps the devices – removes the SIM card from one device and puts it in another compatible device.

1

• SIM based IMEI tracking applet detects the new IMEI after a swap and triggers a mobile originating SMS to the OTA server with the new information

2

2

3

• If needed OTA server initiates OMA-CP session to update the device settings

3

3 NII Network

SmartTrust OTA DM server

OTA Events (SIM and OMA-DM based transactions)

• The OTA server registers the new IMEI information for that subscription

• The IMEI is checked against a database of devices and their capabilities (TCR) by the server

• For a standard 3G device, if the subscription has device compatible services available, the OTA server initiates a device settings update to provision the device

• The use case captures the standard 3G behaviour

• In the event a SIM is exchanged between a Qchat device and a non-Qchat device, additional scenarios need to be addressed.

• The new IMEI is also sent to the IT billing system for synchronization

• (NOTE: The next slide captures all such possible cases.)

Provisioning Flow

BSS

SmartTrust OTA DM server

• Customer buys a HPPTT device from a Point of Sale.

1

3

• BSS system adds the device, provisions the network elements (HLR, VAS, AAA, QAS, U/G Database etc) to enable voice, data and other services

2

• Qchat client goes online upon successfully provisioning of all mandatory elements and registers with the QAS server

6

• After successfully provisioning the network elements, BSS provisions the OTA subsystem with subscriber profile including Qchat parameters needed to activate the service

3

• OTA generates a profile for the MSISDN, HPPTT and sends all the SIM profile parameters to the SIM via SMS

4

7

• User powers on device

• CPA reads mandatory factory flash and user parameters from SIM, if available, provisions them to the Qchat client

2

NII Network

6

4

Network Elements

• A SIM update is followed by a SIM refresh causing the device to read all SIM updates. CPA reads all Qhcat user data sent via OTA and begins provisioning the Qchat client with the same.

5

• Any Qchat provisioning return codes are sent back via client initiated OMA-DM session

6

• Any additional Qchat updates captured on the DM tree are pushed via the OMA-DM session

7

• Any Qchat provisioning return codes are sent back via client initiated OMA-DM session

7a

7a

6 • Qchat client registers

with the QAS server and continues to do so every 4 hours

6

OTA Events (SIM and OMA-DM based transactions)

OTA Benefits

Increased data services ARPU Device is always properly provisioned,

reprovisioned and/or configured with correct settings via various channels –

auto-detection, care, campaigns

Improved Customer Satisfaction No more repeated calls to care for lost

settings or inability to configure services. No more device returns and visits to retail

stores. Seamless roaming experience – increased customer loyalty.

Process Simplification & Standardization

A single platform to manage all device portfolio in a simplified and standard way. A single interface for care with powerful tools for OTA management

and for subscribers to perform basic operations via established OTA channels and processes.

Reduced operational and support costs

Significant reduction in calls to customer care. Provisioning triggered by

automatic device detection, mass campaign to update/fix device issues and

firmware updates reduce operational costs over time

Improved Qchat Experience In the case of NII’s 3G where the

network is still in the early stages, having FOTA capability is critical to

performing updates for Qchat as the technology and user requirements

evolve.

Forced Registration

FOTA

High Level Network Topology

HSMP

LHS

BSCS

SOAP

MO/MT SMSs

GGSN

OMA-DM Session

SmartTrust

hosted OTA

platform in

Stockholm

Sweden

HSMP module which acts

as a SMSC. A dedicated

SMSC for OTA traffic, no

need to use the Ericsson

SMSC

LHS BSCS Billing

system with

interfaces to AAA,

HLR, core, and

OTA for

provisioning

VPN

connectivity

between

Stockholm

and NII

markets

SS7 for HSMP

and Packet data

for OMA IP

sessions

SMS’s to the SIM

card, OMA-CP

and OMA-DM

sessions with the

device

SmartTrust

Nextel Markets

Conclusion

OTA IS THE KEY FOR HP-PTT