Method and apparatus for providing a shared message

• US 20090122795A1
• Filed: 11/14/2007
• Published: 05/14/2009
• Est. Priority Date: 11/14/2007
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Koskela, Jussi, H-P Nurmi, Juha
• Application Number:
  US11/985,578
• Publication Number:
  US 20090122795A1
• Time in Patent Office: Days
• US Class Current: 370/389
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 61/5069 for group communication, multicast communication or broadcast communication
• CPC Class Codes: H04L 61/5076 Update or notification mechanisms, e.g. DynDNS

Abstract

According to some embodiments of the present invention provides a new and unique technique to extend a point-to-point communication with a point-to-multipoint feature. Each end node has, beside a unique address, a configurable address that can be updated via some configuration means from a control entity. The unique address is a dedicated address. Different end node can have the same configurable address. The sender of a message or packet must be aware of the used addresses in the system. The technique does not require any changes to the normal data communication protocol. The messages or packets are unchanged. The implementation is done on the sender side and in the end node. Each message or frame or packet contains only one address. Each message and packet is received by each end node. A message is used by an end node if the unique or configurable address is matching. Beside that there is a possibility that the filtering is done by a hub that is selecting the right end node according the port definition (each output port has a dedicated unique address and configurable address). Moreover, the shared image frame has been sent once by the sender, which results in lower power consumption and less load on the sender.

Claims

1. A method comprising:

providing a command to update a configurable address of one or more communication nodes in a communication system so as to be able to receive shared data; and

providing the shared data and a destination address so that one or more communication nodes process the shared data if either their respective unique address or configurable address matches the destination address.

2. A method according to claim 1, wherein the one or more communication nodes is a peripheral, including a main display, or a television output, or a sub-display, or a high definition multimedia interface, or a mass storage, or a functional module, in a communication system.

3. A method according to claim 1, wherein the one or more communication nodes are hubs having ports in a hub system.

4. A method according to claim 1, wherein the shared data is a message or a packet or a frame.

5. A method according to claim 1, wherein the method includes configuring different communications nodes to have the same configurable address to receive the shared data.

6. A method according to claim 1, wherein the method includes broadcasting a multicast signal having the shared data and destination address to all nodes in the communication system.

19. A method according to claim 1, wherein the method is implemented in a chipset comprising:

one or more modules configured for providing a command to update a configurable address of one or more communication nodes in a communication system so as to be able to receive shared data; and

one or more modules configured for providing the shared data and a destination address so that one or more communication nodes process the shared data if either their respective unique address or configurable address matches the destination address.

20. A method according to claim 1, wherein the method is implemented in a computer program product with a program code, which program code is stored on a machine readable medium, for carrying out the steps of the method via a computer program running in a processor, controller or other suitable module in one or more nodes, points, terminals, devices or functional modules in the communication system.

21. A method according to claim 1, wherein the method further comprises implementing the step of the method via a computer program running in a processor, controller or other suitable module in a node, point, terminal, device or functional module.

7. Apparatus comprising:

one or more modules configured for providing a command to update a configurable address of one and more communication nodes in a communication system so as to be able to receive shared data; and

one or more modules configured for providing the shared data and a destination address so that one or more communication nodes process the shared data if either their respective unique address or configurable address matches the destination address.

8. Apparatus according to claim 7, wherein the one or more communication nodes is a peripheral, including a main display, or a television output, or a sub-display, or a mass storage, or a high definition multimedia interface, or a functional module, in the communication system.

9. Apparatus according to claim 7, wherein the one or more communication nodes are hubs having output ports in a hub system.

10. Apparatus according to claim 7, wherein the shared data is a message or a packet or a frame.

11. Apparatus according to claim 7, wherein the configurable address is configurable to have the same group address as different communications nodes in the communication system.

12. Apparatus according to claim 7, wherein the shared data and destination address is broadcast to all nodes in the communication system in a multicast message or packet or frame.

13. A system comprising:

one node, point, terminal or device having one or more modules configured for providing a command to update a configurable address of one or more communication nodes in a communication system so as to be able to receive shared data, and for also providing the shared data and a destination address; and

another node, point, terminal or device having one or more modules configured for receiving the command and updating the configurable address so as to be able to receive the shared data, and for also receiving the shared data and the destination address and processing the shared data if either its respective unique address or configurable address matches the destination address.

14. A system according to claim 13, wherein the system is a communication system having the one or more communication nodes as peripherals, including a main display, or a television output, or a sub-display, or a high definition multimedia interface, or a mass storage, or a functional module, or some combination thereof.

15. A system according to claim 13, wherein the system is a hub system having at least one hub with ports.

16. A system according to claim 13, wherein the shared data is a message or a packet or a frame.

17. A system according to claim 13, wherein the system comprises different communications nodes that are configurable to have the same configurable address to receive the shared data.

18. A system according to claim 13, wherein the shared data and destination address is broadcast to all nodes in the communication system in a multicast signal.

38. A system according to claim 13, wherein the system comprises a control entity that is aware of all unique and configurable addresses and controls the configurable addresses.

39. A system according to claim 13, wherein the one node, point, terminal, or device that provides a multicast message is either listening to the control entity so that it has the latest knowledge about currently used unique and configurable addresses in the system or is requesting before a normal or multicast message a latest address definition from the control entity.

40. A system according to claim 13, wherein the system comprises at least two masters which are both capable of modification of the configurable addresses and capable of transmitting normal and shared data.

41. A system according to claim 40, wherein in one mode only one of the masters is active at a time.

42. A system according to claim 41, wherein in the one mode an active master is allowed to modify the configurable addresses according to its needs.

43. A system according to claim 42, wherein the at least one other master is in a passive mode where it tracks all modifications to the addresses, so as to allow a smooth master transition from a passive master state to an active master state, and vice versa.

22. Apparatus comprising:

means for providing a command to update a configurable address of one or more communication nodes in a communication system so as to be able to receive shared data; and

means for providing the shared data and a destination address so that one or more communication nodes process the shared data if either their respective unique address or configurable address matches the destination address.

23. A method comprising:

receiving in a communication node in a communication system a command to update a configurable address so as to be able to receive shared data; and

receiving in the communication node the shared data and a destination address so that the communication node processes the shared data if either its respective unique address or configurable address matches the destination address.

24. A method according to claim 23, wherein the communication node is a peripheral, including a main display, or a television output, or a sub-display, or a high definition multimedia interface, or a mass storage device, or a functional module, in the communication system.

25. A method according to claim 23, wherein the communication node is a hub having at least one port in a hub system.

26. A method according to claim 23, wherein the shared data is a message or a packet or a frame.

27. A method according to claim 23, wherein the method includes configuring different communications nodes to have the same configurable address to receive the shared data.

28. A method according to claim 23, wherein the method includes broadcasting a multicast signal having the shared data and destination address to all nodes in the communication system.

34. A method according to claim 23, wherein the method is implemented in a chipset comprising:

one or more modules configured for receiving a command to update a configurable address of one or more communication node in a communication system so as to be able to receive shared data; and

one or more modules configured for receiving the shared data and a destination address so that one or more communication nodes process the shared data if either their respective unique address or configurable address matches the destination address.

35. A method according to claim 23, wherein the method is implemented in a computer program product with a program code, which program code is stored on a machine readable medium, for carrying out the steps of the method via a computer program running in a processor, controller or other suitable module in one or more nodes, points, terminals or devices in the communication system.

29. Apparatus comprising:

one or more modules configured for receiving in a communication node in a communication system a command to update a configurable address so as to be able to receive shared data; and

one or more modules configured for receiving in the communication node the shared data and a destination address so that the communication node processes the shared data if either its respective unique address or configurable address matches the destination address.

30. Apparatus according to claim 29, wherein the communication node is a peripheral, including a main display, or a television output, or a sub-display, or a high definition multimedia interface, or a mass storage, or a functional module, in the communication system.

31. Apparatus according to claim 29, wherein the communication node is a hub having at least one output port in a hub system.

32. Apparatus according to claim 29, wherein the shared data is a message or a packet or a frame.

33. Apparatus according to claim 29, wherein the shared data and destination address are broadcast to all nodes in the communication system in a multicast signal.

36. A method comprising:

updating a configurable address of a communication node in a communication system so as to be able to receive shared data; and

processing the shared data in the communication node if either its respective unique address or configurable address matches a destination address associated with the shared data.

37. Apparatus comprising:

means for receiving in a communication node in a communication system a command to update a configurable address so as to be able to receive shared data; and

means for receiving in the communication node the shared data and a destination address so that the communication node processes the shared data if either its respective unique address or configurable address matches the destination address.