Avamprogetto 2a

Technical requirements for the handover interfaces for the execution of telecommunications surveillance

address in case of cable modem or wlan access or an

IMEI in case of Mobile PS access.

It shall be provided as UTF8String.

naAssignedAddress Table E.3

The naAssignedAddress structure shall be composed

of the following 2 elements: 1) set of IPAddress, 2)

addressType

1) IPAddress Annex E.3

Description and requirements Examples

The IPv4 address or IPv6 prefix used by the 198.51.100.24

subscriber's client for the connection. Preferably in text 2001:DB8:A125:C27B format using the element "iPTextAddress".

2) addressType Annex E.3

Description and requirements ELEMENTS

The type of IP address. unknown

internal

external

Location and additionalLocations Table E.3

General requirements

The location information corresponds to the location of the cell antenna serving the mobile PS target or the location of the access point serving a target by wireless lan (wlan). The location information at the beginning and at the end of the session must be provided for each network access session that took place within the period for which historical data was requested. The location information at the end of the session must be provided with the additionalLocations element.

The location information structure may be composed of three main information structures:

1) Cell and area identity, 2) Geographical coordinates and 3) Postal location.

Depending on the network access technology used by the target, the following location information elements and fields may be delivered in the session records:

Mobile PS network access:

GERAN radio access technology:

1) Cell and area identity elements: globalCellID

2) Geographical coordinates elements: gsmLocation

3) Postal location elements: any available field

UTRAN radio access technology:

1) Cell and area identity elements: globalCellID and/or sAI

2) Geographical coordinates elements: gsmLocation or umtsLocation

3) Postal location elements: any available field

E-UTRAN radio access technology:

1) Cell and area identity elements: userLocationInformation

2) Geographical coordinates elements: gsmLocation or umtsLocation

3) Postal location elements: any available field

Wireless LAN network access:

Wi-Fi® hotspot access:

2) Geographical coordinates elements, if available: gsmLocation

3) Postal location elements: any available field