Dynamic internet protocol address management method

• US 20030058813A1
• Filed: 09/24/2001
• Published: 03/27/2003
• Est. Priority Date: 09/24/2001
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Emmons, Thomas Peter Jr., Viola, Cindy J., White, Douglas A.
• Granted Patent: US 6,961,322 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5053 Lease time; Renewal aspects
• CPC Class Codes: H04L 61/5061 Pools of addresses
• CPC Class Codes: H04L 61/5076 Update or notification mechanisms, e.g. DynDNS

Abstract

A method manages an internet protocol address and time of validity. The method obtains (52) the IP address and validity time period for a mobile station (10). The IP address and validity time period are transmitted (53) to the mobile station (10). Prior to expiration of the validity time period the network (20) renews the IP address for a new validity time period.

Claims

1. A method for management of an Internet Protocol (IP) address of a mobile station through a network, the method comprising the steps of:

obtaining by the network the IP address and validity time period for the mobile station;

transmitting the IP address and validity time period to the mobile station; and

renewing the IP address for a new validity time period.

2. The method as claimed in claim 1, wherein there is further included the step of transmitting by the network the new validity time period to the mobile station.

3. The method as claimed in claim 1, wherein the step of renewing includes the step of prior to an expiration of the validity time period, requesting the new validity time period from a Dynamic Host Configuration Protocol (DHCP) by the network.

4. The method as claimed in claim 1, wherein the step of obtaining includes the step of requesting by the mobile station the IP address and validity time period from the network.

5. The method as claimed in claim 4, wherein the step of obtaining further includes the step of assigning by the network the IP address and the validity time period from a pool.

6. The method as claimed in claim 4, wherein the step of obtaining further includes the step of requesting by the network the IP address and validity time period from a Dynamic Host Configuration Protocol (DHCP).

7. The method as claimed in claim 6, wherein there is further included a step of if the IP address was obtained from the Dynamic Host Configuration Protocol (DHCP), requesting by the network the new validity time period to the Dynamic Host Configuration Protocol (DHCP).

8. The method as claimed in claim 7, wherein there is further included the step of if a handset name is available, registering by the network the new validity time period for the IP address and name to the Domain Name Server.

9. The method as claimed in claim 1, wherein there is further included the steps of:

requesting services by the mobile station from an application server;

inquiring by the application server the IP address and new validity time period from a Domain Name Served; and

responding to the application server by the Domain Name Served with the IP address and a time remaining of the new validity time period to the application server.

10. The method as claimed in claim 7, wherein there is further included the step of providing the new validity time period to the network by the Dynamic Host Configuration Protocol server.

11. The method as claimed in claim 1, wherein there is further included the step of registering the IP address and validity time period and name for the mobile station with a Domain Name Server.

12. A method for management of an Internet Protocol (IP) address of a mobile station through a network, the method comprising the steps of:

obtaining by the network the IP address and a validity time period for the mobile station;

requesting by the mobile station a new validity time period for the IP address to the network;

prior to an expiration of the validity time period and subsequent to the step of requesting by the mobile station, renewing by the network the IP address for the new validity time period.

13. The method as claimed in claim 12, wherein there is further included a step of transmitting by the network the new validity time period to the mobile station.

14. The method as claimed in claim 12, wherein the step of renewing includes the step of requesting the new validity time period from a Dynamic Host Configuration Protocol server by the network.

15. The method as claimed in claim 12, wherein the step of obtaining further includes the step of assigning by the network the IP address and the validity time period from a pool.

16. The method as claimed in claim 12, wherein the step of obtaining further includes the step of requesting by the network the IP address and validity time period from a Dynamic Host Configuration Protocol server.

17. The method as claimed in claim 12, wherein there is further included the step of providing the new validity time period associated with the name to the Domain Name Server by the network.

18. A method for management of an Internet Protocol (IP) address of a mobile station through a network, the method comprising the steps of:

obtaining by the mobile station the IP address and validity time period for the IP address;

prior to an expiration of the validity time period, renewing by the network the IP address for a new validity time period;

transmitting by the network to the mobile station the new validity time period; and

receiving an update response by the network from the mobile station indicating that the mobile station is active.

19. The method as claimed in claim 18, wherein there is further included a step of deactivating the IP address and new validity time for a failure of a modify procedure between the mobile station and the network.

20. The method as claimed in claim 18, wherein the step of obtaining includes the step of requesting by the mobile station the IP address and validity time period.

21. The method as claimed in claim 18, wherein the step of obtaining the IP address includes the step of requesting the IP address and validity time period by the network from a Dynamic Host Configuration Protocol (DHCP) server.

22. The method as claimed in claim 18, wherein the step of obtaining further includes the step of assigning by the network the IP address and the validity time period from a pool.