System and method for handling simple IP to mobile IP transition
First Claim
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1. A method for transitioning between a first wireless protocol having geographically dependent addressing and a second wireless protocol having non-geographically dependent addressing, the method comprising:
- a wireless device detecting a new system requiring reconnect of a packet data service while in a state during which link layer connectivity for a packet data service is maintained;
the wireless device determining whether the new system has been previously visited by the wireless device;
if the wireless device has not previously visited the new system, the wireless device attempting to establish a session using the second wireless protocol with the new system; and
if the wireless device has previously visited the new system;
a) the wireless device determining whether the new system previously allowed a session using the second wireless protocol; and
b) if the new system previously allowed a session using the second wireless protocol, the wireless device attempting to establish a session using the second wireless protocol with the new system;
wherein the first wireless protocol comprises SIP (simple IP) and the second wireless protocol comprises MIP (mobile IP).
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Abstract
Methods are provided for transitioning between SIP and MIP. Mobile devices, upon detecting a new system, automatically attempt a MIP session to avoid the default position of SIP. A history is maintained of systems visited, and for systems that did not support MIP in the past, a MIP session is not attempted, but rather SIP is initiated from the start.
15 Citations
25 Claims
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1. A method for transitioning between a first wireless protocol having geographically dependent addressing and a second wireless protocol having non-geographically dependent addressing, the method comprising:
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a wireless device detecting a new system requiring reconnect of a packet data service while in a state during which link layer connectivity for a packet data service is maintained; the wireless device determining whether the new system has been previously visited by the wireless device; if the wireless device has not previously visited the new system, the wireless device attempting to establish a session using the second wireless protocol with the new system; and if the wireless device has previously visited the new system; a) the wireless device determining whether the new system previously allowed a session using the second wireless protocol; and b) if the new system previously allowed a session using the second wireless protocol, the wireless device attempting to establish a session using the second wireless protocol with the new system; wherein the first wireless protocol comprises SIP (simple IP) and the second wireless protocol comprises MIP (mobile IP). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wireless device configured to communicate with access networks using a first wireless protocol having geographically dependent addressing and a second wireless protocol having non-geographically dependent addressing, the wireless device being configured to:
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detect a new system requiring reconnect of a packet data service while in a state during which link layer connectivity for a packet data service is maintained; determine whether the new system has been previously visited by the wireless device; if the wireless device has not previously visited the new system, attempt to establish a session using the second wireless protocol with the new system; and if the wireless device has previously visited the new system; a) determine whether the new system previously allowed a session using the second wireless protocol; and b) if the new system previously allowed a session using the second wireless protocol, attempt to establish a session using the second wireless protocol with the new system; wherein the first wireless protocol comprises SIP (simple IP) and the second wireless protocol comprises MIP (mobile IP). - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A computer readable medium having computer executable instructions stored thereon for execution on a wireless device so as to implement a method of transitioning between a first wireless protocol having geographically dependent addressing and a second wireless protocol having non-geographically dependent addressing, the method comprising:
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a wireless device detecting a new system requiring reconnect of a packet data service while in a state during which link layer connectivity for a packet data service is maintained; the wireless device determining whether the new system has been previously visited by the wireless device; if the wireless device has not previously visited the new system, the wireless device attempting to establish a session using the second wireless protocol with the new system; and if the wireless device has previously visited the new system; a) the wireless device determining whether the new system previously allowed a session using the second wireless protocol; and b) if the new system previously allowed a session using the second wireless protocol, the wireless device attempting to establish a session using the second wireless protocol with the new system; wherein the first wireless protocol comprises SIP (simple IP) and the second wireless protocol comprises MIP (mobile IP). - View Dependent Claims (21, 22, 23, 24, 25)
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Specification