US7200401B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operator forced inter-system handover
Assignee: Nokia Technologies Oy
•
Filing: 2000-06-29
•
Granted: 2007-04-03
•
Expires: 2020-06-29
Abstract
Abstract A communication network system is disclosed, which comprises at least two different types of radio access networks attached to a core network. In the network system, a subscriber communicates via a first radio access network with the core network which forces handover of the subscriber to another type of radio access network on the basis of operator specific criteria.
Inventors
- 👤 Tony Hulkkonen
- 👤 Juha Back
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:27
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/24; H04W36/34; H04W36/38
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
140 words
A communication network system comprising at least two different types of radio access networks attached to a core network, wherein: a subscriber is adapted to communicate via a first radio access network with the core network; and the core network is adapted to force handover of the subscriber to another type of radio access network on the basis of operator specific criteria, wherein the operator specific criteria comprise subscriber's identity, and wherein the core network is adapted to analyze the subscribers identity upon receiving a service request from the first radio access network and to force a handover to the another type of radio access network on the basis of the analysis result, and to indicate that the first radio access network is a preferred radio access network in a handover request message sent to the another radio access network.
Claim 2
Dependent Claim
140 words
A communication network system comprising at least two different types of radio access networks attached to a core network, wherein: a subscriber is adapted to communicate via a first radio access network with the core network; and the core network is adapted to force handover of the subscriber to another type of radio access network on the basis of operator specific criteria, wherein the operator specific criteria comprise subscriber's identity, and wherein the core network is adapted to analyze the subscribers identity upon receiving a service request from the first radio access network and to force a handover to the another type of radio access network on the basis of the analysis result, and to indicate that the first radio access network is a preferred radio access network in a handover request message sent to the another radio access network.
Claim 3
Dependent Claim
41 words
A network system according to claim 1 , wherein the core network is adapted to indicate in an assignment request message sent to the first radio access network that a handover to the other type of radio access network is needed.
Claim 4
Dependent Claim
46 words
A network system according to claim 1 , wherein the core network analyzes the subscriber's identity upon receiving a service request from the first radio access network and forces a handover to the other type of radio access network on the basis of the analysis result.
Claim 5
Dependent Claim
30 words
A network system according to claim 1 , wherein allowed radio access network types are specified as subscriber parameters in a subscriber database and are transmittable to the core network.
Claim 6
Dependent Claim
16 words
A network system according to claim 1 , wherein the operator specific criteria comprise subscriber's location.
Claim 7
Dependent Claim
38 words
A network system according to claim 5 , wherein the core network is adapted to indicate location information and a type of target radio access network in an assignment request message sent to the first radio access network.
Claim 8
Dependent Claim
39 words
A network system according to claim 5 , wherein the core network is adapted to transmit location information and a type of target radio access network to the first radio access network at any time during an active connection.
Claim 9
Dependent Claim
18 words
A network system according to claim 1 , wherein the operator specific criteria comprise a required security level.
Claim 10
Dependent Claim
35 words
A network system according to claim 8 , wherein the core network is adapted to analyze the required security level of a requested service and to force handover on the basis of the analysis result.
Claim 11
Dependent Claim
28 words
A network system according to claim 9 , wherein a set of permitted security algorithms is specified in a subscriber database and is transmitted to the core network.
Claim 12
Independent Claim
161 words
A method of handing over a subscriber communicating via a first radio access network with a core network to another type of radio access network, the radio access networks being attached to the core network in a communication network system comprising at least two different types of radio access networks, wherein the handover of the subscriber to the other type of radio access network is forced by the core network on the basis of operator specific criteria, wherein the operator specific criteria comprise subscriber's identity, wherein the subscriber's identity is analyzed by the core network upon receiving a service request from the first radio access network and a handover to the other type of radio access network is forced on the basis of the analysis result, and wherein the core network is configured to indicate that the first radio access network is a preferred radio access network in a handover request message sent to the another type of radio access network.
Claim 13
Independent Claim
161 words
A method of handing over a subscriber communicating via a first radio access network with a core network to another type of radio access network, the radio access networks being attached to the core network in a communication network system comprising at least two different types of radio access networks, wherein the handover of the subscriber to the other type of radio access network is forced by the core network on the basis of operator specific criteria, wherein the operator specific criteria comprise subscriber's identity, wherein the subscriber's identity is analyzed by the core network upon receiving a service request from the first radio access network and a handover to the other type of radio access network is forced on the basis of the analysis result, and wherein the core network is configured to indicate that the first radio access network is a preferred radio access network in a handover request message sent to the another type of radio access network.
Claim 14
Dependent Claim
40 words
A method according to claim 11 , wherein it is indicated in an assignment request message sent from the core network to the first radio access network that a handover to the other type of radio access network is needed.
Claim 15
Dependent Claim
16 words
A method according to claim 11 , wherein the operator specific criteria comprise a requested service.
Claim 16
Dependent Claim
29 words
A method according to claim 11 , wherein allowed radio access network types are specified as subscriber parameters in a subscriber database and are transmitted to the core network.
Claim 17
Dependent Claim
15 words
A method according to claim 11 , wherein the operator specific criteria comprise subscriber's location.
Claim 18
Dependent Claim
36 words
A method according to claim 15 , wherein location information and a type of target radio access network is indicated in an assignment request message sent from the core network to the first radio access network.
Claim 19
Dependent Claim
37 words
A method according to claim 16 , wherein location information and a type of target radio access network is transmitted by the core network to the first radio access network at any time during an active connection.
Claim 20
Dependent Claim
17 words
A method according to claim 11 , wherein the operator specific criteria comprise a required security level.
Claim 21
Dependent Claim
34 words
A method according to claim 18 , wherein the required security level of a requested service is analyzed by the core network and a handover is forced on the basis of the analysis result.
Claim 22
Dependent Claim
27 words
A method according to claim 18 , wherein a set of permitted security algorithms is specified in a subscriber database and is transmitted to the core network.
References Cited (Backward Citations)
JPH06245247A
Cited
WO1995007010A1
Cited
WO1996014719A1
Cited
US6397065B1
Cited
WO1998059513A1
Cited
US6584314B1
Cited
US6438370B1
Cited
WO2000010355A1
Cited
WO2000016577A1
Cited
WO2000032001A2
Cited
WO2000044189A1
Cited
US20020086682A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-04-02 | 2010-10-02 | 2011-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-04-02 | 2014-10-02 | 2015-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-04-02 | 2018-10-02 | 2019-04-03 | $7700.00 | Window Closed / Lapsed |