4 Virtual Home Environment

23.1273GPPRelease 6TSVirtual Home Environment (VHE) / Open Service Access (OSA)

The Virtual Home Environment (VHE) is an important portability concept of the 3G mobile systems. It enables end users to bring with them their personal service environment whilst roaming between networks, and also being independent of terminal used.

The Personal Service Environment (PSE) describes how the user wishes to manage and interact with her communication services. It is a combination of a list of subscribed to services, service preferences and terminal interface preferences. PSE also encompasses the user management of multiple subscriptions, e.g. business and private, multiple terminal types and location preferences. The PSE is defined in terms of one or more User Profiles.

Please see TS 22.121 [5] for more details.

4.1 Personal Service Environment

4.1.1 Void

4.2 Support of Virtual Home Environment Toolkits

4.2.1 USAT

No VHE requirements.

4.2.2 MExE

No VHE requirements.

4.2.3 OSA

4.2.3.1 Support of HE-VASPs

The OSA toolkit may be used by the Home Environment, by Value Added Service Providers (VASPs) and Home Environment Value Added Service Providers (HE-VASPs).

Extensions shall be made to OSA in order to optimize the support of HE-VASPs. These extensions shall use the fact that user subscription information is owned and managed by the home environment, i.e. the Home Environment knows which users are subscribed to the service implemented by the OSA application, and if the service is activated or not.

Specific methods shall be specified in OSA Network Service Capability Features, permitting:

– An OSA application to request user related event notifications pertaining to any subscribed user for which the service implemented by the application is activated.

– The OSA SCS to report user related event notifications in which it explicitly identifies the user to which the event applies.

– An OSA application to request a function to be applied to all current subscribed users for which the service implemented by the application is activated.

It shall also be possible for the OSA SCS to report user related events to the OSA application, without the application having explicitly subscribed to the event (events to be reported have been agreed between the Home Environment and the HE-VASP by other means, e.g. in their service level agreement).

These VHE-specific extensions shall apply to all relevant Network Service Capability Features, like call and session control SCFs, user status, and user location.

4.2.4 CAMEL

No specific requirements in addition to TS 23.078 [2] and TS 22.078 [9].