Patent US6463286B1 successfully refreshed from Google Patents.
US6463286B1
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Method, exchange, telecommunication system and mobile station for temporary selective national roaming at predetermined network operation conditions in a mobile radio communication system
Assignee: Telefonaktiebolaget LM Ericsson AB
•
Filing: 1999-07-30
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Granted: 2002-10-08
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Expires: 2019-07-30
Abstract
Abstract The invention relates to a method, an exchange, a telecommunication system and a mobile station for providing a temporary selective national roaming at predetermined network operation conditions, e.g. at network overload in a mobile radio communication system. A first switching means (MSC/VLR) of a home network (HPLMN) performs a negotiation with a second switching means (MSC/VLR′) of another network (VPLMN) which has free capacity to handle mobile stations (MS 1 -MS 4 ) of the first network (HPLMN) which cannot be handled by said first network (HPLMN) during e.g. an overload condition occuring therein. When e.g. the overload condition occurs, a request message (RM) is first sent to the second switching means (MSC/VLR′) in order to enquire whether the second network (VPLMN) has enough free capacity to take over mobile stations (MS 1 -MS 4 ) from the first network (HPLMN). Thus, it can be ensured that mobile stations (MS 1 -MS 4 ) of the first network (HPLMN) do not cause an overload condition in the second network (VPLMN) when they have been registered in the second network (VPLMN) and receive a service therein.
Inventors
- 👤 Reijo Salminen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:35
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/0005; H04W36/0055; H04W36/0066
Claims Analysis
Total Claims: 78
Claim 1
Independent Claim
279 words
Telecommunication system comprising a first and at least one second mobile radio communication network, wherein one or more mobile stations of the first network are temporarily granted access in the second network at overload conditions in the first network, comprising in the first network: a) an overload detection means detecting an overload condition in the first network; b) a first switching means including request means for sending to a second switching means of the second network a request message requesting that one or more mobile stations of the first network which cannot be handled in the first network due to said overload condition be handled by the second network, the request message indicating the number of mobile stations to be handled by the second network; and in the at least one second network: c) a reception means for receiving said request message from the first switching means; d) an access grant means for determining whether the second network has enough capacity to handle calls of said one or more mobile stations which cannot be handled by the first network and for granting access for the mobile stations if there is enough capacity; e) a response message sending means for sending a response message to said first switching means indicating that said second network grants access to one or more mobile stations of the first network which cannot be handled during said overload conditions if said access grant means determines that the capacity is sufficient; and in at least one of the first and second network: f) a registering means for registering the one or more mobile stations, which cannot be handled in said first network, in said second network.
Claim 2
Dependent Claim
279 words
Telecommunication system comprising a first and at least one second mobile radio communication network, wherein one or more mobile stations of the first network are temporarily granted access in the second network at overload conditions in the first network, comprising in the first network: a) an overload detection means detecting an overload condition in the first network; b) a first switching means including request means for sending to a second switching means of the second network a request message requesting that one or more mobile stations of the first network which cannot be handled in the first network due to said overload condition be handled by the second network, the request message indicating the number of mobile stations to be handled by the second network; and in the at least one second network: c) a reception means for receiving said request message from the first switching means; d) an access grant means for determining whether the second network has enough capacity to handle calls of said one or more mobile stations which cannot be handled by the first network and for granting access for the mobile stations if there is enough capacity; e) a response message sending means for sending a response message to said first switching means indicating that said second network grants access to one or more mobile stations of the first network which cannot be handled during said overload conditions if said access grant means determines that the capacity is sufficient; and in at least one of the first and second network: f) a registering means for registering the one or more mobile stations, which cannot be handled in said first network, in said second network.
Claim 3
Independent Claim
170 words
A method for temporarily transferring one or more mobile stations of a first mobile radio communication network at predetermined operation conditions to at least one second mobile radio communication network, comprising the following steps: a) detecting a predetermined operation condition in the first network; b) sending, from a switching means of the first network to at least one switching means of the second, network at least one request message requesting that one or more mobile stations of said first network be handled by the second network when said predetermined operation condition is detected, the at least one request message indicating the number of mobile stations to be handled by the second network; c) receiving a response message by the switching means of first network from the switching means of the second network indicating that the second network grants access to said one or more mobile stations of the first network; and d) registering said one or more mobile stations of the first network in the at least one second network.
Claim 4
Independent Claim
170 words
A method for temporarily transferring one or more mobile stations of a first mobile radio communication network at predetermined operation conditions to at least one second mobile radio communication network, comprising the following steps: a) detecting a predetermined operation condition in the first network; b) sending, from a switching means of the first network to at least one switching means of the second, network at least one request message requesting that one or more mobile stations of said first network be handled by the second network when said predetermined operation condition is detected, the at least one request message indicating the number of mobile stations to be handled by the second network; c) receiving a response message by the switching means of first network from the switching means of the second network indicating that the second network grants access to said one or more mobile stations of the first network; and d) registering said one or more mobile stations of the first network in the at least one second network.
Claim 5
Dependent Claim
27 words
A method according to claim 1 , wherein said request message indicates at least one access class of mobile stations to be handled by the second network.
Claim 6
Dependent Claim
52 words
A method according to claim 3 , wherein several second networks are provided and said switching means of the first network determines on the basis of the access classes of the mobile stations in which second network the at least one of said mobile stations of the first network should be registered.
Claim 7
Dependent Claim
36 words
A method according to claim 3 , wherein several request messages are sent separately to several switching means in the second network each request message containing a number of mobile stations of a particular access group.
Claim 8
Dependent Claim
22 words
A method according to claim 1 , wherein as the predetermined operation condition an overload condition is detected in the first network.
Claim 9
Dependent Claim
85 words
A method according to claim 6 , wherein said request message indicates one or more mobile stations of the first network which cannot be handled in the first network due to said overload condition, said response message indicates that the second network grants an access to the one or more mobile stations of the first network which cannot be handled during said overload condition and the one or more mobile stations which cannot be handled in the first network are registered in said second network.
Claim 10
Dependent Claim
21 words
A method according to claim 7 , wherein said request message indicates information about the overload area in the first network.
Claim 11
Dependent Claim
78 words
A method according to claim 7 , further comprising in response to receiving said response message from the second network, sending an overload message to the base station controllers connected to the switching means of the first network indicating that a roaming to the second network is allowed for the at least one mobile stations of the first network due to said overload condition, said base station controllers providing said overload message to the mobile stations indicated therein.
Claim 12
Dependent Claim
46 words
A method according to claim 9 , wherein said overload message indicates the at least one access class for which a roaming to said second network is allowed, said base station controllers providing said overload message to the mobile stations belonging to the indicated access class.
Claim 13
Dependent Claim
43 words
A method according to claim 9 , wherein said overload message indicates at least one of the at least one second network to which the mobile stations are allowed to roam and a particular switching means of said at least one second networks.
Claim 14
Dependent Claim
70 words
A method according to claim 6 , wherein in said step a) an operation condition detection means in the at least one mobile stations detects said overload condition if a call-setup request issued by said mobile station fails or if an on-going communication is interrupted; and said at least one mobile stations send a transfer request to said first switching means for actively requesting a transfer to the second network.
Claim 15
Dependent Claim
22 words
A method according to claim 12 , wherein said transfer request indicates the desired second network to which a transfer is requested.
Claim 16
Dependent Claim
50 words
A method according to claim 6 , wherein when said mobile station receives a release message after the end of said overload conditions, said mobile station sends a transfer request to the switching means of the second network indicating a desired first network where the re-registering is to be performed.
Claim 17
Dependent Claim
38 words
A method according to claim 1 , wherein as said predetermined operation condition, at least one of a maintenance condition and a switching command by at least one or more mobile users is detected in the first network.
Claim 18
Dependent Claim
26 words
A method according to claim 1 , wherein in step b) said request message is sent to at least two switching means of the second network.
Claim 19
Dependent Claim
29 words
A method according to claim 1 , wherein several second networks are provided and said request message is sent to at least one switching means in each second network.
Claim 20
Dependent Claim
60 words
A method according to claim 17 , wherein when a mobile station, which has been registered in said second network moves outside said allowable location area, said switching means of the second network decides either to continue a call or to perform an inter-network handover to the first network or to yet another second network, or to release the call.
Claim 21
Dependent Claim
26 words
A method according to claim 1 , wherein the mobile stations are located in at least one of the same location area and different location areas.
Claim 22
Dependent Claim
45 words
A method according to claim 1 , wherein a copy of the subscriber data of the at least one mobile stations of the first network stored in the home location register of the first network is sent to the switching means of the second network.
Claim 23
Dependent Claim
39 words
A method according to claim 1 , wherein when a mobile station of the first network is in an idle state when registered in the second network, the mobile station performs repeated re-registering requests to said first switching means.
Claim 24
Dependent Claim
47 words
A method according to claim 1 , wherein after a mobile station has been registered in the second network, said switching means of the second network determines allowable location areas in the second network to which the mobile station is allowed to roam in the second network.
Claim 25
Dependent Claim
40 words
A method according to claim 1 , wherein several second networks are provided and said first switching means scans said several second networks if a second network has refused to take over the mobile stations during said predetermined operation condition.
Claim 26
Dependent Claim
74 words
A method according to claim 1 , wherein when it is detected that the predetermined operation condition has ended in the first network, said switching means of the first network sends a stop message to the switching means of the second network, wherein said second switching means withdraws the access granting of said at least one mobile stations of the first network, whereafter said at least one mobile stations re-register in the first network.
Claim 27
Dependent Claim
33 words
A method according to claim 24 , wherein the mobile stations re-register at the same switching means from which they have left the first network depending on the location of the mobile station.
Claim 28
Dependent Claim
60 words
A method according to claim 24 , wherein when the mobile stations re-register at the switching means of the first network, an update location information message is sent to a home location register of the first network and the location information contained therein is compared with the location information stored when the mobile station was registered in the second network.
Claim 29
Dependent Claim
34 words
A method according to claim 1 , wherein the mobile station is transferred to another second network if an overload occurs in the second network to which the mobile station has first been transferred.
Claim 30
Dependent Claim
266 words
Telecommunication system comprising a first and at least one second mobile radio communication network, wherein at least one mobile stations of the first network are temporarily granted access in the second network at predetermined operation conditions in the first network, comprising: in the first network: a) an operation condition detection means detecting an predetermined operation condition in the first network; b) a first switching means including request means for sending to a second switching means of said second network a request message requesting that one or more mobile stations of the first network be handled by the second network when said predetermined operation condition is detected, the request message indicating the number of mobile stations to be handled by the second network; and in the at least one second network: c) a reception means for receiving said request message from said first switching means; d) an access grant means for determining whether the second network has enough capacity to handle calls of the at least one mobile stations when said predetermined operation condition is detected and for granting access for the mobile stations if there is enough capacity; e) a response message sending means for sending a response message to said first switching means indicating that the second network grants access to at least one mobile stations of the first network if said access grant means determines that the capacity is sufficient; and in at least one of the first- and second network: f) a registering means for registering the at least one mobile stations when said predetermined operation condition is detected in the second network.
Claim 31
Dependent Claim
266 words
Telecommunication system comprising a first and at least one second mobile radio communication network, wherein at least one mobile stations of the first network are temporarily granted access in the second network at predetermined operation conditions in the first network, comprising: in the first network: a) an operation condition detection means detecting an predetermined operation condition in the first network; b) a first switching means including request means for sending to a second switching means of said second network a request message requesting that one or more mobile stations of the first network be handled by the second network when said predetermined operation condition is detected, the request message indicating the number of mobile stations to be handled by the second network; and in the at least one second network: c) a reception means for receiving said request message from said first switching means; d) an access grant means for determining whether the second network has enough capacity to handle calls of the at least one mobile stations when said predetermined operation condition is detected and for granting access for the mobile stations if there is enough capacity; e) a response message sending means for sending a response message to said first switching means indicating that the second network grants access to at least one mobile stations of the first network if said access grant means determines that the capacity is sufficient; and in at least one of the first- and second network: f) a registering means for registering the at least one mobile stations when said predetermined operation condition is detected in the second network.
Claim 32
Dependent Claim
27 words
A system according to claim 28 , wherein said request message indicates at least one access class of mobile stations to be handled by the second network.
Claim 33
Dependent Claim
26 words
A method according to claim 28 , wherein said operation condition detection means detects as said predetermined operation condition an overload condition in the first network.
Claim 34
Dependent Claim
85 words
A system according to claim 30 , wherein said request message indicates at least one mobile stations of the first network which cannot be handled in said first network due to said overload condition, said response message indicates that the second network grants an access to the at least one mobile stations of the first network which cannot be handled during said overload condition and the at least one mobile stations which cannot be handled in the first network are registered in said second network.
Claim 35
Dependent Claim
90 words
A system according to claim 31 , wherein said first switching means comprises a reception means for receiving said response message from said second switching means and for sending an overload message to the base station controllers connected to the first switching means of the first network indicating that a roaming to the second network is allowed for at least one mobile stations which cannot be handled in the first network due to said overload condition, said base station controllers providing said overload message to the mobile stations indicated therein.
Claim 36
Dependent Claim
46 words
A system according to claim 32 , wherein said overload message lists the at least one access class for which a roaming to said second network is allowed, said base station controllers providing said overload message to the mobile stations belonging to the indicated access class.
Claim 37
Dependent Claim
43 words
A system according to claim 32 , wherein said overload message indicates at least one of said at least one second network to which the mobile stations are allowed to roam and a particular switching means of said at least one second networks.
Claim 38
Dependent Claim
21 words
A system according to claim 30 , wherein said request message indicates information about the overload area in the first network.
Claim 39
Dependent Claim
58 words
A system according to claim 30 , wherein when said operation condition detection means detects that said overload condition has ended in the first network, said first switching means sends a stop message to said second switching means, wherein said second switching means withdraws the access granting of said at least one mobile stations of the first network.
Claim 40
Dependent Claim
40 words
A system according to claim 28 , wherein said operation condition detection means detects as said predetermined operation condition at least one of a maintenance condition and a switching command by at least one mobile users in said first network.
Claim 41
Dependent Claim
25 words
A system according to claim 28 , wherein said request means sends said request message to at least two switching means of the second network.
Claim 42
Dependent Claim
38 words
A system according to claim 38 , wherein said request means sends several request messages separately to several switching means an the second network each request message containing a number of mobile stations of a particular access group.
Claim 43
Dependent Claim
33 words
A system according to claim 28 , wherein said telecommunication system comprises several second networks and said request means sends said request message to at least one switching means in each second network.
Claim 44
Dependent Claim
57 words
A system according to claim 28 , wherein said telecommunication system comprises several second networks and said switching means of said first network determines on the basis of the access classes of the mobile stations in which second network at least one of said mobile stations which cannot be handled in the first network should be registered.
Claim 45
Dependent Claim
30 words
A system according to claim 28 , wherein the mobile stations in the first network are located in at least one of the same location area and different location areas.
Claim 46
Dependent Claim
57 words
A system according to claim 28 , wherein said registering means copies in response to receiving a registration message from the at least one mobile stations which have been granted an access in the second network, the subscriber data of the mobile stations from the home location register of the first network into said second switching means.
Claim 47
Dependent Claim
42 words
A system according to claim 28 , wherein when a mobile station of the first network is in an idle state when registered in the second network, the mobile station is adapted for performing repeated re-registering requests to said first switching means.
Claim 48
Dependent Claim
42 words
A system according to claim 28 , wherein said second switching means comprises a location area determining means for determining allowable location areas in the second network where said at least one mobile stations are allowed to roam in the second network.
Claim 49
Dependent Claim
58 words
A system according to claim 28 , wherein when a mobile station, which has been registered in the second network, moves outside said allowable location area, said second switching means is adapted to either continue a call, or to perform an inter-network handover to the first network or to yet another second network, or to release the call.
Claim 50
Dependent Claim
47 words
A system according to claim 28 , wherein the telecommunication system comprises several several second networks and said first switching means comprises scan means for scanning the several second networks if a second network has refused to take over the mobile stations during said predetermined operation condition.
Claim 51
Dependent Claim
172 words
An exchange of a first mobile radio communication network for handing over at least one mobile stations of a first network to at least one second mobile radio communication network at predetermined operation conditions in the first network, comprising a) an operation condition detection means detecting a predetermined operation condition in the first network; b) a switching means including request means for sending to a switching means of the second network a request message requesting that at least one mobile stations of the first network be handled by the second network when the predetermined operation condition is detected, the request message indicating the number of mobile stations to be: handled by the second network; c) a reception means for receiving a response message from a switching means of the second network indicating that the second network grants access to at least one mobile stations of the: first network when the predetermined operation condition is detected; and d) a registering means for registering said at least one mobile stations in the second network.
Claim 52
Dependent Claim
172 words
An exchange of a first mobile radio communication network for handing over at least one mobile stations of a first network to at least one second mobile radio communication network at predetermined operation conditions in the first network, comprising a) an operation condition detection means detecting a predetermined operation condition in the first network; b) a switching means including request means for sending to a switching means of the second network a request message requesting that at least one mobile stations of the first network be handled by the second network when the predetermined operation condition is detected, the request message indicating the number of mobile stations to be: handled by the second network; c) a reception means for receiving a response message from a switching means of the second network indicating that the second network grants access to at least one mobile stations of the: first network when the predetermined operation condition is detected; and d) a registering means for registering said at least one mobile stations in the second network.
Claim 53
Dependent Claim
27 words
An exchange according to claim 48 , wherein said request message indicates at least one access class of mobile stations to be handled by the second network.
Claim 54
Dependent Claim
26 words
An exchange according to claim 40 , wherein said operation condition detection means detects as the predetermined operation condition an overload condition in the first network.
Claim 55
Dependent Claim
85 words
An exchange. according to claim 50 , wherein said request message indicates at least one mobile stations of the first network which cannot be handled in the first network due to said overload condition, said response message indicates that the second network grants an access to the at least one mobile stations of the first network which cannot be handled during said overload condition and said at least one mobile stations which cannot be handled in the first network are registered in the second network.
Claim 56
Dependent Claim
70 words
An exchange according to claim 51 , wherein said switching means is adapted for sending an overload message to the base station controllers of the first network indicating that a roaming to the second network is allowed for at least one mobile stations which cannot be handled in the first network due to said overload condition, said base station controllers providing said overload message to the mobile stations indicated therein.
Claim 57
Dependent Claim
46 words
An exchange according to claim 52 , wherein said overload message lists the at least one access class for which a roaming to said second network is allowed, said base station controllers providing said overload message to the mobile stations belonging to the indicated access class.
Claim 58
Dependent Claim
55 words
An exchange according to claim 50 , wherein when said operation condition detection means detects that said overload condition has ended in the first network, said switching means of the first network sends a stop message to said switching means of the second.network for cancelling said access grant of said at least one mobile stations.
Claim 59
Dependent Claim
40 words
An exchange according to claim 48 , wherein said operation condition detection means detects as the predetermined operation condition at least one of a maintenance condition and a switching command by at least one mobile users in the first network.
Claim 60
Dependent Claim
51 words
An exchange according to claim 48 , wherein said registering means copies, when said at least one mobile stations sends a registration message to said switching means of the second network, the subscriber data from the home location register of the first network to said switching means of the second network.
Claim 61
Dependent Claim
26 words
An exchange according to claim 51 , wherein said request message sent by said request means indicates information about the overload area in the first network.
Claim 62
Dependent Claim
52 words
An exchange according to claim 48 , wherein several second networks, wherein said switching means of the first network determines on the basis of the access classes of the mobile stations in which second network at least one of the mobile stations should be registered, when the predetermined operation condition is detected.
Claim 63
Dependent Claim
189 words
A telecommunication system comprising at least two mobile radio communication networks, wherein one or more mobile stations which cannot be handled in one network are handed over to another network during predetermined operation conditions in the one network, wherein at least one network comprises one or more exchanges, wherein at least one of the exchanges includes: a) an operation condition detection means detecting a predetermined operation condition in the first network; b) a switching means including request means for sending to a switching means of the second network a request message requesting that one or more mobile stations of the first network be handled by the second network when the predetermined operation condition is detected, the request message indicating the number of mobile stations to be handled by the second network; c) a reception means for receiving a response message from a switching means of the second network indicating that the second network grants access to one or more mobile stations of the first network when the predetermined operation condition is detected; and d) a registering means for registering said one or more mobile stations in the second network.
Claim 64
Dependent Claim
189 words
A telecommunication system comprising at least two mobile radio communication networks, wherein one or more mobile stations which cannot be handled in one network are handed over to another network during predetermined operation conditions in the one network, wherein at least one network comprises one or more exchanges, wherein at least one of the exchanges includes: a) an operation condition detection means detecting a predetermined operation condition in the first network; b) a switching means including request means for sending to a switching means of the second network a request message requesting that one or more mobile stations of the first network be handled by the second network when the predetermined operation condition is detected, the request message indicating the number of mobile stations to be handled by the second network; c) a reception means for receiving a response message from a switching means of the second network indicating that the second network grants access to one or more mobile stations of the first network when the predetermined operation condition is detected; and d) a registering means for registering said one or more mobile stations in the second network.
Claim 65
Dependent Claim
27 words
An exchange according to claim 59 , wherein said request message indicates at least one access class of mobile stations to be handled by the second network.
Claim 66
Dependent Claim
26 words
An exchange according to claim 59 , wherein said operation condition detection means detects as the predetermined operation condition an overload condition in the first network.
Claim 67
Dependent Claim
85 words
An exchange according to claim 61 , wherein said request message indicates at least one mobile stations of the first network which cannot be handled in the first network due to said overload condition, said response message indicates that the second network grants an access to the at least one mobile stations of the first network which cannot be handled during said overload condition and said at least one mobile stations which cannot be handled in the first network are registered in the second network.
Claim 68
Dependent Claim
70 words
An exchange according to claim 62 , wherein said switching means is adapted for sending an overload message to the base station controllers of the first network indicating that a roaming to the second network is allowed for at least one mobile stations which cannot be handled in the first network due to said overload condition, said base station controllers providing said overload message to the mobile stations indicated therein.
Claim 69
Dependent Claim
46 words
An exchange according to claim 63 , wherein said overload message lists the at least one access class for which a roaming to said second network is allowed, said base station controllers providing said overload message to the mobile stations belonging to the indicated access class.
Claim 70
Dependent Claim
26 words
An exchange according to claim 62 , wherein said request message sent by said request means indicates information about the overload area in the first network.
Claim 71
Dependent Claim
56 words
An exchange according to claim 61 , wherein when said operation condition detection means detects that said overload condition has ended in the first network, said switching means of the first network sends a stop message to said switching means of the second network for cancelling said access grant of said at least one mobile stations.
Claim 72
Dependent Claim
40 words
An exchange according to claim 59 , wherein said operation condition detection means detects as the predetermined operation condition at least one of a maintenance condition and a switching command by at least one mobile users in the first network.
Claim 73
Dependent Claim
51 words
An exchange according to claim 59 , wherein said registering means copies, when said at least one mobile stations sends a registration message to said switching means of the second network, the subscriber data from the home location register of the first network to said switching means of the second network.
Claim 74
Dependent Claim
52 words
An exchange according to claim 59 , wherein several second networks, wherein said switching means of the first network determines on the basis of the access classes of the mobile stations in which second network at least one of the mobile stations should be registered, when the predetermined operation condition is detected.
Claim 75
Independent Claim
186 words
A method for temporarily transferring at least one mobile stations of a first mobile radio communication network at overload conditions to at least one second mobile radio communication network, comprising the following steps: a) detecting an overload condition in the first network; b) sending, from a switching means of the first network to at least one switching means of the second network, at least one request message requesting that one or more mobile stations of the first network which cannot be handled in the first network due to said overload condition be handled by the second network, the at least one request message indicating the number of mobile stations to be handled by the second network; c) receiving a response message by the switching means of the first network from the switching means of the second network indicating that the second network grants access to one or more mobile stations of the first network which cannot be handled during said overload conditions; and d) registering said one or more mobile stations, which cannot be handled in the first network, in the at least one second network.
Claim 76
Independent Claim
186 words
A method for temporarily transferring at least one mobile stations of a first mobile radio communication network at overload conditions to at least one second mobile radio communication network, comprising the following steps: a) detecting an overload condition in the first network; b) sending, from a switching means of the first network to at least one switching means of the second network, at least one request message requesting that one or more mobile stations of the first network which cannot be handled in the first network due to said overload condition be handled by the second network, the at least one request message indicating the number of mobile stations to be handled by the second network; c) receiving a response message by the switching means of the first network from the switching means of the second network indicating that the second network grants access to one or more mobile stations of the first network which cannot be handled during said overload conditions; and d) registering said one or more mobile stations, which cannot be handled in the first network, in the at least one second network.
Claim 77
Dependent Claim
184 words
An exchange of a first mobile radio communication network for handing over one or more mobile stations of a first network to at least one second mobile radio communication network at overload conditions in the first network, comprising a) an overload detection means detecting an overload condition in the first network; b) a switching means including request means for sending to a switching means of the second network a request message requesting that one or more mobile stations of the first network which cannot be handled in the first network due to said overload condition be handled by the second network, the request message indicating the number of mobile stations to be handled by the second network; c) a reception. means for receiving a response message from a switching means of the second network indicating that the second network grants access to one or more mobile stations of the first network which cannot be handled during said overload conditions; and d) a registering means for registering the one or more mobile stations, which cannot be handled in the first network, in the second network.
Claim 78
Dependent Claim
184 words
An exchange of a first mobile radio communication network for handing over one or more mobile stations of a first network to at least one second mobile radio communication network at overload conditions in the first network, comprising a) an overload detection means detecting an overload condition in the first network; b) a switching means including request means for sending to a switching means of the second network a request message requesting that one or more mobile stations of the first network which cannot be handled in the first network due to said overload condition be handled by the second network, the request message indicating the number of mobile stations to be handled by the second network; c) a reception. means for receiving a response message from a switching means of the second network indicating that the second network grants access to one or more mobile stations of the first network which cannot be handled during said overload conditions; and d) a registering means for registering the one or more mobile stations, which cannot be handled in the first network, in the second network.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-10-07 | 2006-04-08 | 2006-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-10-07 | 2010-04-08 | 2010-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-10-07 | 2014-04-08 | 2014-10-08 | $7700.00 | Window Closed / Lapsed |