Avoiding formation of a call loop resulting from handling of a mobile terminated call in parallel with a location update in a wireless communication network
First Claim
1. A mobility and call management entity (MCME), the MCME comprising:
- a processor and a memory communicatively connected to the processor, the processor configured to;
send, from the MCME toward a second MCME, a routing information request message associated with delivery of a mobile terminated (MT) call to a mobile device (MD), the routing information request message comprising an indication of a gateway MCME for the MD; and
receive, at the MCME from the second MCME, a release message instructing the MCME to release resources of the MCME associated with the MD.
3 Assignments
0 Petitions
Accused Products
Abstract
A call loop avoidance capability is provided for preventing formation of a call loop resulting from handling of a mobile terminated (MT) call in parallel with a location update for a mobile device (MD) in a wireless communication network. The call loop avoidance capability prevents formation of a call loop between an old mobility and call management entity (MCME) and a new MCME when delivery of an MT call to an MD is performed while the MD is in the process of moving from the old MCME to the new MCME using a location update procedure. An enhanced call routing procedure supports direct delivery of the MT call from the new MCME to the MD (rather than delivery of the MT call by the new MCME to the MD via the old MCME) in order to prevent formation of a call loop between the old MCME and the new MCME.
-
Citations
20 Claims
-
1. A mobility and call management entity (MCME), the MCME comprising:
a processor and a memory communicatively connected to the processor, the processor configured to; send, from the MCME toward a second MCME, a routing information request message associated with delivery of a mobile terminated (MT) call to a mobile device (MD), the routing information request message comprising an indication of a gateway MCME for the MD; and receive, at the MCME from the second MCME, a release message instructing the MCME to release resources of the MCME associated with the MD. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
16. A method, comprising:
-
sending, from a first mobility and call management entity (MCME) toward a second MCME, a routing information request message associated with delivery of a mobile terminated (MT) call to a mobile device (MD), the routing information request message comprising an indication of a gateway MCME for the MD; and receiving, at the first MCME from the second MCME, a release message instructing the MCME to release resources of the MCME associated with the MD.
-
-
17. An apparatus, comprising:
a processor and a memory communicatively connected to the processor, the processor configured to; receive, at a first mobility and call management entity (MCME) from a second MCME, a routing information request message associated with delivery of a mobile terminated (MT) call to a mobile device (MD); and determine, at the first MCME based on the routing information request message, whether the first MCME performs a gateway MCME function for the MT call to the MD. - View Dependent Claims (18, 19, 20)
Specification