Combining differing transport technologies in a telecommunications system
First Claim
1. A telecommunications system having an application layer and a transport layer, the system comprising:
- a first node which utilizes a first transport technology;
a second node which utilizes a second transport technology;
wherein the first transport technology and the second transport technology are interworked for facilitating establishment of a transport bearer between the first node and the second node without terminating or interworking with application control signaling in the application layer.
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Accused Products
Abstract
In a multi-layer telecommunications system which includes an application layer and a transport layer, differing transport technologies are interworked without terminating the application layer signaling or without involving a technology interworking in the control plane of the application layer (e.g., without interworking in the application signaling). In various illustrated embodiments, the application layer is a radio network layer of a wireless telecommunications system. In at least some embodiments of the present invention a transport layer interworking function is situated on an interface between two nodes of the radio access network (RAN). The interworking function can be located in a separate node which may be a node having both ATM and internet protocol (IP) interfaces. There are numerous modes of implementing the interworking of the present invention, regardless of which interface is affected (e.g., an Iur interface, an Iu interface, or an Iub interface). A first interworking mode involves interworking with q.aal2 signaling. There are various ways or options of implementing the interworking with q.aal2 signaling. A first such example option is to use an IP specific signaling protocol over the IP network. A second example option is to use q.aal2 signaling over the IP network to/from the IP node. In one of its aspects, the present invention also provides an optimization feature in the event that nodes on both side of the interface (Iu interface, Iur interface, or Iub interface) are IP-connected nodes. Another interworking mode involves obtaining address and binding identifier parameters to be included in application signaling messages by consulting a transport layer interworking gateway. Yet another mode of implementing interworking for the present invention involves tunneling.
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Citations
68 Claims
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1. A telecommunications system having an application layer and a transport layer, the system comprising:
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a first node which utilizes a first transport technology;
a second node which utilizes a second transport technology;
wherein the first transport technology and the second transport technology are interworked for facilitating establishment of a transport bearer between the first node and the second node without terminating or interworking with application control signaling in the application layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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- 24. For use in a telecommunications system having an application layer and a transport layer, the system comprising a first node which utilizes a first transport technology and a second node which utilizes a second transport technology, a method comprising interworking the first transport technology and the second transport technology to facilitate establishment of a transport bearer between the first node and the second node without terminating or interworking with application control signaling in the application layer.
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47. A telecommunications system having an application layer and a transport layer, the application layer being a radio network layer, the system comprising:
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a first node which is connected to use Internet Protocol;
a second node;
wherein the first node attempts to establish a transport bearer between the first node and the second node using application level signaling, but when unsuccessful invokes an interworking function in the transport layer for establishing the transport bearer. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55)
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- 56. For use in a telecommunications system having an application layer and a transport layer, the application layer being a radio network layer, the system comprising a first node which is connected to use Internet Protocol and a second node, a method comprising attempting to establish a transport bearer between the first node and the second node using application level signaling, but when unsuccessful invoking an interworking function in the transport layer for establishing the transport bearer.
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65. A telecommunications system having an application layer and a transport layer, the application layer being a radio network layer, the system comprising:
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a first node;
a second node which is connected to use Internet Protocol;
a transport layer interworking gateway;
wherein the second node obtains address parameters of the transport layer interworking gateway from the transport layer interworking gateway for inclusion in application layer signaling to the first node in order to enable the first node to use the transport layer interworking gateway for the purpose of establishing a transport bearer between the first node and the second node. - View Dependent Claims (66)
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67. For use in a telecommunications system having an application layer and a transport layer, the application layer being a radio network layer;
- the system comprising a first node, a second node which is connected to use Internet Protocol; and
a transport layer interworking gateway;
a method comprising;
the second node obtaining address parameters of the transport layer interworking gateway for inclusion in application layer signaling to the first node, thereby enabling the first node using the transport layer interworking gateway for the purpose of establishing a transport bearer between the first node and the second node. - View Dependent Claims (68)
- the system comprising a first node, a second node which is connected to use Internet Protocol; and
Specification