METHOD AND APPARATUS FOR CROSS PAGING A MULTI NETWORK COMMUNICATION SYSTEM

• US 20070047562A1
• Filed: 08/23/2006
• Published: 03/01/2007
• Est. Priority Date: 08/31/2005
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Xu, Xiang, Crocker, Ronald, Sayeedi, Shahab
• Granted Patent: US 8,599,871 B2
• Time in Patent Office: Days
• US Class Current: 370/401
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 36/0066 of control information between different types of networks in order to establish a new radio link in the target network
• CPC Class Codes: H04W 36/0072 of resource information of target access point
• CPC Class Codes: H04W 68/12 Inter-network notification
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

Various embodiments are described which can serve to increase the cross paging call success rate in joint networks. Resource reservation by a requesting network (312) in the context of cross paging is described. In general, such resource reservation may be triggered by the occurrence of any one of a variety of events in conjunction with the requesting network determining that a communication session with an AT (301) is desirable. Examples of triggering events include the following: the AT subscribing for resource reservation as a matter of configuration, the AT having a particular call state and perhaps with regard to particular services, the AT requesting resource reservation (before or after being paged/notified of the requesting network'"'"'s desire to provide service, the communication session for which the requesting network is requesting the AT is of a particular type, and/or resource reservation is an operational default system operation.

Claims

1. A method to facilitate cross-paging in a multi-network communication system, the method comprising:

obtaining communication service from a first network;

sending, by an access terminal (AT) before leaving the communication service of the first network, an indication that resource reservation is requested.

2. The method of claim 1, wherein sending the indication that resource reservation is requested comprises sending an indication that resource reservation is requested for a service connection to be provided by the second network.

3. The method of claim 2, further comprising receiving a page from the first network for the service connection that is to be provided by the second network, wherein sending the indication that resource reservation is requested comprises sending the indication that resource reservation is requested after receiving the page.

4. A method for cross-paging in a multi-network communication system, the method comprising:

requesting, by a first network via a second network, an access terminal (AT) for service;

establishing, by the first network, a connection with the AT to support a communication session;

performing, by the first network prior to establishing the connection with the AT, at least one step from the group of steps consisting of;

reserving, by the first network prior to requesting the AT for service via the second network, at least one communication resource in anticipation of providing service to the AT,

receiving, by the first network from the second network, information indicating a present call state of the AT in the second network,

receiving, by the first network from the second network, cross-paging-related configuration information for the AT, and

receiving, by the first network from the second network, an indication that resource reservation is requested.

5. The method of claim 4, further comprising

determining, by the first network, that a communication session with the AT is desirable, wherein determining that the communication session with the AT is desirable comprises receiving signaling for at least one type of service related to the AT from the group consisting of

a circuit-switched service and

a packet data service.

6. The method of claim 4, wherein reserving the at least one communication resource in anticipation of providing service to the AT comprises

reserving the at least one communication resource when a service request has been received for the AT for a packet data service type.

7. The method of claim 4, further comprising

reserving, by the first network, at least one communication resource in anticipation of providing service to the AT, in response to receiving at least one piece of information from the group consisting of

the information indicating the present call state of the AT in the second network,

information indicating a location of the AT,

the cross-paging-related configuration information for the AT, and

the indication that resource reservation is requested;

indicating, to the second network by the first network after reserving, that at least one communication resource has been reserved in anticipation of providing service to the AT.

8. The method of claim 4, wherein receiving at least one piece of information, from the group consisting of

the information indicating the present call state of the AT in the second network,

the cross-paging-related configuration information for the AT, and

the indication that resource reservation is requested,

comprises receiving a message from the group of messages consisting of an event notification, a service response message, a paging response message, and a clear request message.

9. The method of claim 4, wherein requesting the AT for service via the second network comprises sending a message from the group of messages consisting of a service request message and a paging request message.

10. The method of claim 4,

wherein reserving the at least one communication resource comprises reserving at least one communication resource from the group of resources consisting of at least one air interface traffic channel and at least one network bearer resource, and

wherein the at least one network bearer resource comprises at least one network bearer resource from the group consisting of an A8 connection, an A10 connection, terrestrial circuits, and SCCP resources.

11. The method of claim 4, wherein reserving the at least one communication resource comprises reserving at least one communication resource based on the information indicating the location of the AT.

12. The method of claim 4, wherein the present call state comprises a call state from the group consisting of

a busy call state,

idle call state;

active packet data session state, and

dormant packet data session state.

13. A method for cross-paging in a multi-network communication system, the method comprising:

providing communication service to an access terminal (AT) by a first network;

receiving, by the first network, a message from a second network requesting to provide communication service to the AT;

performing, by the first network, at least one step from the group of steps consisting of;

sending information indicating a present call state of the AT in the first network,

sending cross-paging-related configuration information for the AT, and

sending an indication that resource reservation is requested.

14. The method of claim 13, further comprising:

receiving an indication, by the first network from the second network, that at least one communication resource has been reserved in anticipation of providing service to the AT;

paging, by the first network in response to receiving the indication that at least one communication resource has been reserved, the AT for the communication service to be provided by the second network.

15. The method of claim 13, wherein sending at least one piece of information, from the group consisting of

the information indicating the present call state of the AT in the first network,

the cross-paging-related configuration information for the AT, and

the indication that resource reservation is requested,

comprises sending a message from the group of messages consisting of an event notification, a service response message, a paging response message, and a clear request message.

16. The method of claim 13, wherein the message received from the second network requesting to provide communication service to the AT comprises a message from the group of messages consisting of a service request message and a paging request message.

17. The method of claim 13, wherein the present call state comprises a call state from the group consisting of

a busy call state,

idle call state;

active packet data session state, and

dormant packet data session state.

18. The method of claim 13, wherein sending information indicating the present call state of the AT in the first network comprises sending information indicating the present call state of the AT in response to the present call state changing.

19. The method of claim 13, wherein sending cross-paging-related configuration information for the AT comprises sending the cross-paging-related configuration information upon arrival of the AT in the first network for service.

20. An access terminal (AT) comprising:

a transceiver;

a processing unit, communicatively coupled to the transceiver,

adapted to obtain communication service from a first network via the transceiver, and

adapted to send, via the transceiver before leaving the communication service of the first network, an indication that resource reservation is requested.

21. A network comprising:

a transceiver;

a network interface;

a processing unit, communicatively coupled to the transceiver and the network interface,

adapted to request, via the network interface and a second network, an access terminal (AT) for service,

adapted to establish a connection with the AT via the transceiver to support a communication session, and

adapted in at least one manner of adaptation from the group of adaptations consisting of;

adapted to reserve, prior to requesting the AT for service via the second network and prior to establishing the connection with the AT, at least one communication resource in anticipation of providing service to the AT,

adapted to receive, from the second network via the network interface prior to establishing the connection with the AT, information indicating a present call state of the AT in the second network,

adapted to receive, from the second network via the network interface prior to establishing the connection with the AT, cross-paging-related configuration information for the AT, and

adapted to receive, from the second network via the network interface prior to establishing the connection with the AT, an indication that resource reservation is requested.

22. A network comprising:

a transceiver;

a network interface;

a processing unit, communicatively coupled to the transceiver and the network interface,

adapted to provide communication service to an access terminal (AT) via the transceiver,

adapted to receive a message from a second network via the network interface requesting to provide communication service to the AT, and

adapted in at least one manner of adaptation from the group of adaptations consisting of;

adapted to send information via the network interface indicating a present call state of the AT,

adapted to send cross-paging-related configuration information for the AT via the network interface, and

adapted to send an indication via the network interface that resource reservation is requested.