Connection set-up between two terminals
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Accused Products
Abstract
The invention relates to the setting up of a connection between an originating terminal and a terminating terminal. Both terminals may connect via the same access network. The access network accesses a core network through an access gateway. The access gateway transmits and/or receives connection set-up signalling transmitted along a signalling path through at least the core network. Using an information element in the connection set-up signalling, information on media plane access needs of nodes in the signalling path is collected and provided for determining whether a local shortcut of a media path can be established in the access network.
46 Citations
83 Claims
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1-32. -32. (canceled)
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33. A method of setting up a connection between an originating terminal and a terminating terminal connecting via the same access network, the access network accessing a core network through an originating access gateway for the originating terminal, the method comprising:
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at the originating access gateway, including an information element in a set-up message for setting up the connection through at least the core network; transmitting the set-up message on a signalling path through at least the core network to a terminating access gateway in the core network, wherein at least one of the nodes through which the signalling path progresses enters information into the information element relating to its needs to access a media plane of the connection to be set up; receiving at the terminating access gateway the set-up message comprising the information element; transmitting a response message including the information element with collected media plane access needs in an opposite direction along the signalling path to the originating access gateway; and providing information on the collected media plane access needs for a determination by the originating access gateway or another node regarding whether a local shortcut of a media path of said connection can be established in the access network.
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34. A method of setting up a connection between an originating terminal and a terminating terminal connecting via the same access network, the access network accessing a core network through at least one access gateway, the method being performed by a core network node of said core network, the method comprising:
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receiving connection set-up signalling for establishing said connection, said signalling being transmitted along a signalling path in at least the core network, said core network node being in the signalling path; receiving with said connection set-up signalling an information element storing media plane access needs of at least one node preceding said core network node in said signalling path with respect to the direction of transmission of the information element, wherein said media plane access needs indicate the needs of a preceding node to access a media plane of the connection to be set up; entering into the information element information relating to the need of the core network node to access the media plane; and transmitting the information element with said connection set-up signalling to a next node in the signalling path so as to enable the collection of media plane access needs of nodes in the signalling path, via said information element, for determining whether a local shortcut of a media path of said connection can be established in the access network. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A core network node for a core network configured to set up a connection between an originating terminal and a terminating terminal connecting via the same access network, the access network accessing said core network through at least one access gateway, wherein the core network node comprises a receiving unit and a transmitting unit, and further comprises a processing unit configured to:
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receive, via the receiving unit, connection set-up signalling for establishing said connection and to receive an information element with that signaling, wherein said signalling is transmitted along a signalling path in at least the core network, said core network node being in the signalling path, wherein said information element stores media plane access needs of at least one node preceding said core network node in said signalling path with respect to the direction of transmission of the information element, and wherein said media plane access needs indicate the needs of a preceding node to access a media plane of the connection to be set up; enter into the information element information relating to the need of the core network node to access the media plane; and transmit, via the transmitting unit, the information element with said connection set-up signalling to a next node in the signalling path so as to enable the collection of media plane access needs of nodes in the signalling path, via said information element, for determining whether a local shortcut of a media path of said connection can be established in the access network. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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64. A method of setting up a connection between an originating terminal and a terminating terminal connecting via the same access network, the access network accessing a core network through at least one access gateway, the method being performed by the access gateway and comprising:
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receiving connection set-up signalling for establishing said connection, said signalling being transmitted along a signalling path in at least the core network; collecting information on the needs of nodes in said signalling path to access a media plane of the connection to be set up, by retrieving from the received connection set-up signalling an information element that stores the media plane access needs of at least one of the nodes in the signalling path; and providing the collected information for a determination by the access gateway or another node regarding whether a local shortcut of a media path of said connection can be established in the access network. - View Dependent Claims (65, 66, 67, 68, 69, 70, 71, 72, 73)
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74. An access gateway of a core network configured to set up a connection between an originating terminal and a terminating terminal connecting via the same access network, the access gateway being adapted to provide access to a core network for the access network, wherein the access gateway comprises a receiving unit and a transmitting unit, and further comprises a processing unit configured to:
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receive, via the receiving unit, connection set-up signalling for establishing said connection, said signalling being transmitted along a signalling path in at least the core network; collect information on the needs of nodes in said signalling path to access a media plane of the connection to be set up, by retrieving from the received connection set-up signalling an information element that stores the media plane access needs of at least one of the nodes in the signalling path; and provide the collected information for a determination by the access gateway or another node regarding whether a local shortcut of a media path of said connection can be established in the access network. - View Dependent Claims (75, 76, 77, 78, 79, 80, 81, 82, 83)
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Specification