Changing of Channel Capabilities
AssigneeWi-LAN, Inc.
InventorsKirsi Maansaari (Nee: Savola), Marko Kokko
Life of this patent
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Abstract
In a telecommunications system, in which a connection comprises a part with an interworking function at both ends, a channel is allocated to the connection between the interworking functions. The required channel capabilities may vary during the connection, whereby the channel capabilities should be changed. When the first interworking function detects that a channel capability must be changed, a first message, which indicates the desired capability change, is transmitted (2-1) to the second interworking function; and the channel capability is changed (2-3, 2-5) into the desired one at both ends of the part.
Claims19
A method comprising:
- establishing a channel to a connection, where the channel established to the connection comprises at least a part with a first interworking function at a first end and a second interworking function at a second end;
- detecting in the first interworking function that a channel capability of the channel established to the connection must be changed;
- transmitting to the second interworking function a first message which indicates a desired capability change for the channel established to the connection;
- checking in the second interworking function whether the desired capability change can be performed in response to the first message;
- and
- if the capability can be changed into the desired one:
- transmitting a second message to the first interworking function, which message indicates that the desired capability change of the channel established to the connection can be performed at the second end;
- changing the channel capability of the channel established to the connection into the desired capability at the second end;
- and
- changing the channel capability of the channel established to the connection into the desired one at the first end in response to the reception of the second message.
A telecommunications system comprising
- at least a first part for transferring data between end-users of the system;
- at least a first interworking function at a first end of the first part;
- and
- at least a second interworking function at a second end of the first part;
- wherein the first and the second interworking functions are arranged to establish a channel in the first part to a connection between the end-users,
- wherein the first interworking function is arranged to detect a need for change in a channel capability of the channel established to a connection in the first part and to transmit to the second interworking function a first message that indicates a desired capability change for the channel established to the connection, and
- wherein the first and the second interworking functions are arranged to change the channel capability of the channel established to the connection into the desired one.
A telecommunications system node comprising:
- a first interworking function arranged to establish a channel to a user of the telecommunications system between itself, and a second interworking function located in a second node of the telecommunications system, to receive a first message which indicates a need for change in a channel capability of a channel established to the connection, to check whether it can perform the change indicated in the first message, and if it can, to transmit a second message which indicates that the first interworking function can perform a desired capability change for the channel established to the connection.
Dependencies are inferred from the claim text.