METHOD FOR SWITCHING AN ACCESS NODE

• US 20110314123A1
• Filed: 02/16/2010
• Published: 12/22/2011
• Est. Priority Date: 02/20/2009
• Status: Active Grant

• Current Assignee: Orange S.A.
• Original Assignee: Orange S.A.
• Inventors: Herbelin, Philippe, Daoud Triki, Khadija, Leveque, Cédric
• Granted Patent: US 8,615,563 B2
• Time in Patent Office: Days
• US Class Current: 709/217
• CPC Class Codes: H04W 36/0033 with transfer of context information

Abstract

Method for switching access nodes for a terminal capable of implementing a set of applications with at least one remote communicating entity through a packet-switched network, said terminal being associated with a set of first communication contexts, a first communication context including a same first transport configuration common to the set of applications and a first application configuration corresponding to a given application. The method comprises the following steps, reiterated for all the first communication contexts: reception by the terminal of an access node switching notification message, said message indicating a second communication context including a second transport configuration, reception by the terminal of notification message count information, filtering of said second transport configuration of said second communication context on the basis of said count information, transmission of a filtered notification message to the application corresponding to the current iteration.

Claims

1. A method for switching access nodes for a terminal capable of implementing a set of applications with at least one remote communicating entity through a packet-switched network, said terminal being associated with a set of first communication contexts, a first communication context comprising a same first transport configuration common to the set of applications and a first application configuration corresponding to a given application,

said method comprising iterations of the following steps:

receiving by the terminal of an access node switching notification message, said message indicating a second communication context including a second transport configuration,

reception receiving by the terminal of notification message count information,

filtering said second transport configuration of said second communication context based on said count information, and

transmission of transmitting a filtered notification message to the application corresponding to the current iteration,

said steps being reiterated for all the first communication contexts.

2. The method as claimed in claim 1, wherein the filtering step comprises, for a current iteration, the following substeps:

deleting said second transport configuration, for all the iterations, and

updating transport parameters based on said second transport configuration when the count information indicates that the current iteration is the last iteration.

3. The method as claimed in claim 1, wherein the access node switching notification message and the count information are sent by a switching node.

4. The method as claimed in claim 3, wherein the switching node is an access node to which the terminal is connected before switching.

11. A non-transitory computer program product for a terminal comprising software instructions for controlling the implementation of the steps of the method as claimed in claim 1, when this program is executed by the terminal.

5. A method for controlling the switching of access nodes for a terminal capable of implementing a set of applications with at least one remote communicating entity through a packet-switched network, said terminal being associated with a set of first communication contexts, a first communication context comprising a same first transport configuration common to the set of applications and a first application configuration corresponding to a given application,

said method implemented in a switching node comprising steps for:

sending an access node switching notification message to said terminal, said message indicating a second communication context including a second transport configuration, and

sending count information associated with said notification message,

said steps being implemented iteratively for all the first communication contexts.

12. A non-transitory computer program product for a switching node comprising software instructions for controlling the implementation of the steps of the method as claimed in claim 5, when this program is executed by the switching node.

6. A device for switching access nodes for a terminal capable of implementing a set of applications with at least one remote communicating entity through a packet-switched network, said terminal being associated with a set of first communication contexts, a first communication context comprising a same first transport configuration common to the set of applications and a first application configuration corresponding to a given application,

said device comprising the elements of:

a receiver for receiving an access node switching notification message, said message indicating a second communication context comprising a second transport configuration,

a receiver for receiving notification message count information,

a filter for filtering said second transport configuration of said second communication context on the basis of said count information, and

a transmitter for transmitting a filtered notification message to the application corresponding to the current iteration,

said elements being configured for iterative operation for all the first communication contexts.

8. A terminal comprising the device as claimed in claim 6.

10. A telecommunication system comprising at least one terminal as claimed in claim 8 and one switching node comprising the device for controlling the switching of access nodes for a terminal capable of implementing a set of applications with at least one remote communicating entity through a packet-switched network, said terminal being associated with a set of first communication contexts, a first communication context comprising a same first transport configuration common to the set of applications and a first application configuration corresponding to a given application,

said device comprising the elements of:

a transmitter for sending an access node switching notification message to said terminal, said message indicating a second communication context comprising a second transport configuration,

a transmitter for sending count information associated with said notification message,

said elements being configured for iterative operation for all the first communication contexts.

7. A device for controlling the switching of access nodes for a terminal capable of implementing a set of applications with at least one remote communicating entity through a packet-switched network, said terminal being associated with a set of first communication contexts, a first communication context comprising a same first transport configuration common to the set of applications and a first application configuration corresponding to a given application,

said device comprising the elements of:

a transmitter for sending an access node switching notification message to said terminal, said message indicating a second communication context comprising a second transport configuration,

a transmitter for sending count information associated with said notification message,

said elements being configured for iterative operation for all the first communication contexts.

9. A switching node comprising the device as claimed in claim 7.