Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
86 words
Method for providing a unique temporary international
identification of a mobile station, especially during
an initial procedure for initiating and re-establishing a
link between a mobile station and the associated serving
GPRS (General Packet Radio Service) support node (SGSN), characterized by forming a new identity
comprising the old TLLI, the old RA, an identification of
the public land mobile network (PLMN) that is the owner
of the old TLLI and the country where PLMN belong, the
new identity being used as identification on the radio
interface.
Claim 2
Dependent Claim
22 words
Method as claimed in claim 1, characterized in that said unique new
identity is used as an international link set-up identity
(ILSI).
Claim 3
Dependent Claim
40 words
Method as claimed in claim 1 or 2, characterized in that said unique identification
information is used in the attach sequence and
in the inter routing area update sequence, thereby ensuring
a unique temporary international identification of a
mobile station.
Claim 4
Dependent Claim
51 words
Method as claimed in any of the preceding claims, characterized in that said international
link set-up identity (ILSI) is used as an identification
on the radio interface and for addressing in the new SGSN
in order to address the old SGSN and thereby get the IMSI
available to the new SGSN.
Claim 5
Dependent Claim
24 words
Method as claimed in any of the preceding claims, characterized in that each PLMN is assigned
its own handling of any actual TLLI value.
Claim 6
Dependent Claim
31 words
Method as claimed in any of the preceding claims, characterized in that a server is introduced
as an addition to said ILSI or as an alternative to
handling any international TLLI.
Claim 7
Dependent Claim
36 words
Method as claimed in any of the preceding claims, characterized by using an international
temporary identification server (ITIS) for handling said
TLLI or ILSI, possibly for centralizing the handling and
assignment of the logic link identification.
Claim 8
Dependent Claim
27 words
Method as claimed in any of the preceding claims, characterized by using an unique temporary
international identification that is available to
the lower layers in the SGSN.
Claim 9
Dependent Claim
41 words
Method as claimed in any of the preceding claims, characterized in that said unique temporary
international identification can be used to get the
IMSI of the mobile station known to the new SGSN without
signalling the IMSI over the radio interface.