Local area network

• US 6,587,450 B1
• Filed: 10/27/1998
• Issued: 07/01/2003
• Est. Priority Date: 10/29/1997
• Status: Expired due to Term

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Mobile Phones UK Limited (Nokia Corporation)
• Inventors: Pasanen, Jari
• Primary Examiner(s): Ton, Dang
• Assistant Examiner(s): Phunkulh, Bob A.
• Application Number:
  US09/179,604
• Time in Patent Office: 1,708 Days
• Field of Search: 370/328, 370/338, 370/345, 370/349, 370/389, 370/392, 370/432, 709/223, 709/238, 455/550, 455/556, 455/557
• US Class Current: 370/338
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A wireless local area network (5) comprises at least one server device (1), one or several peripheral devices (6-15), and circuit (4, 16) for transferring information between the server device (1) and the peripheral devices (6-15). Transmission of information in the wireless local area network (5) is at least partly arranged to be conducted by a plurality of predetermined link agents, wherein the circuit for transferring information comprise circuit (4d, 16d) for generating a predetermined link agent circuit (4a, 16a) for transmitting the generated link agent, circuit (4b, 16b) for receiving the link agent, circuit (4d, 16d) for processing the received link agent, and circuit (4d, 16d) for carrying out one or several operations defined for the predetermined link agent generated.

Claims

1. A wireless local area network comprising a number of devices, including a server device and one or more peripheral devices, communication between devices in the wireless local area network being arranged to be conducted at least partly by means of link agents, said link agents being associated with tasks to be performed in the wireless local area network and devices in the wireless local area network comprising means for generating link agents, means for transmitting link agents, means for receiving link agents, and means for processing link agents in order to perform tasks associated with said link agents, said link agents being independent of the devices in the wireless local area network, such that performance of a particular task associated with a particular link agent is not bound to a particular device in the wireless local area network and can be transferred to another device in the wireless local area network.

2. A wireless local area network according to claim 1, wherein performance of a particular task associated with a particular link agent can be transferred to a device external to the wireless local area network.

3. A wireless local area network according to claim 1, wherein performance of a particular task associated with a particular link agent can be transferred to a device in another wireless local area network.

4. A wireless local area network according to claim 1, wherein said server device comprises means for generating a link agent associated with a particular task to be performed in the wireless local area network, means for transmitting said link agent from the server device to one of said one or more peripheral devices, said peripheral device comprising means for receiving the link agent, means for processing the link agent, and means for performing the particular task associated with said link agent.

5. A wireless local area network according to claim 4, wherein said one of said one or more peripheral devices further comprises means for transmitting said link agent from said peripheral device to another one of said one or more peripheral devices, said other peripheral device comprising means for receiving the link agent, means for processing the link agent, and means for performing the particular task associated with said link agent.

6. A wireless local area network according to claim 1, wherein said server device comprises means for generating a link agent associated with a particular task to be performed in the wireless local area network, means for transmitting said link agent from the server device to all of said one or more peripheral devices, each of said peripheral devices comprising means for receiving the link agent, means for processing the link agent, and means for performing the particular task associated with said link agent.

7. A wireless local area network according to claim 6, wherein said link agent is one of the following:

a general inquiry link agent for configuration of the local area network, and a setting link agent for setting the peripheral devices into a certain state.

8. A wireless local area network according to claim 1, wherein said tasks to be performed in the wireless local area network include:

transmitting signalling information, transmitting registration data, setting up the wireless local area network, breaking up the wireless local area network, synchronising the status of the wireless local area network, transmitting information to a peripheral device, monitoring the status of the wireless local area network, delivering an e-mail message, delivering a telecopy to a telecopier device connected to the wireless local area network, operating a printer connected to the wireless local area network, retrieving information, examining the status of a peripheral device, setting a peripheral device into a particular state, and routing information within the local area network.

9. A wireless local area network according to claim 1, wherein said link agents are arranged to adapt the performance of tasks in the wireless local area network in dependence on the configuration of the wireless local area network.

10. A wireless local area network according to claim 1, wherein said link agents are arranged to adapt the performance of tasks in the wireless local area network in response to the previous behavior of a user of the wireless local area network.

11. A wireless local area network according to claim 1, wherein the server device is arranged to set up the wireless local area network.

12. A wireless local area network according to claim 11, wherein the server device is arranged to set up the wireless local area network by transmitting link agents to peripheral devices that are to be connected in the wireless local area network.

13. A wireless local area network according to claim 11, wherein the server device is arranged to set up the wireless local area network by transmitting a link agent for obtaining the configuration data of a peripheral device to each peripheral device that is to be connected in the wireless local area network and each peripheral device to be connected in the local area network comprises means for generating a link agent indicating the configuration data of the peripheral device, and means for transmitting said link agent to the server device.

14. A wireless local area network according to claim 13, wherein the configuration data of a peripheral device comprises the following information:

the type of the peripheral device;

the properties of the peripheral device; and

the operating status of the peripheral device.

15. A wireless local area network according to claim 1, wherein the server device is portable.

16. A wireless local area network according to claim 15, wherein the portable server device is a mobile station further comprising means for setting up a connection to a mobile communication network.

17. A wireless local area network according to claim 15, wherein the portable server device is arranged to set up the wireless local area network automatically when in a location where devices suitable for connection to the wireless local area network are available.

18. A wireless local area network according to claim 1, wherein the server device is stationary.

19. A wireless local area network according to claim 1, wherein the wireless local area network is allocated an identification code.

20. A wireless local area network according to claim 19, wherein the identification code allocated to the wireless local area network is based on an identification code of the server device.

21. A wireless local area network according to claim 20, wherein the server device is a mobile station further comprising means for setting up a connection to a mobile communication network and the identification code allocated to the wireless local area network is based on the International Mobile Equipment Identity (IMEI) of the mobile station.

22. A wireless local area network according to claim 19, wherein the identification code allocated to the wireless local area network is used in the wireless local area network to ensure that information transmitted between devices in the wireless local area network is not accessible to devices in another local area network.

23. A wireless local area network according to claim 1, wherein at least one of said peripheral devices may simultaneously be connected in said wireless local area network and in another wireless local area network.

24. A wireless local area network according to claim 1, wherein the server device is arranged to be substantially stationary in the wireless local area network, and at least one of said one or more peripheral devices is a portable peripheral device and is arranged to activate the wireless local area network.

25. A wireless local area network according to claim 24, wherein the portable peripheral device is arranged to activate the wireless local area network by transmitting a link agent to the server device and the server device is further arranged to set up the wireless local area network responsive to receipt of said link agent.

26. A wireless local area network according to claim 24, wherein the portable peripheral device is arranged to set up the wireless local area network automatically when in a location where devices suitable for connection to the wireless local area network are available.

27. A wireless local area network according to claim 1, wherein communication between devices in the wireless local area network is affected by means of a radio frequency connection.

28. A wireless local area network according to claim 1, wherein communication between devices in the wireless local area network is affected by means of an optical connection.

29. A system of wireless local area networks comprising at least a first wireless local area network and a second wireless local area network, each of said first and second wireless local area networks comprising a number of devices, including a server device and one or more peripheral devices,

communication between devices in both of said first and said second wireless local area networks being arranged to be conducted at least partly by means of link agents specific respectively to said first wireless local area network and to said second wireless local area network, link agents specific to the first wireless local area network being associated with tasks to be performed in the first wireless local area network and link agents specific to the second wireless local area network being associated with tasks to be performed in the second wireless local area network,

devices in the first and the second wireless local area networks comprising means for generating link agents, means for transmitting link agents, means for receiving link agents, and means for processing link agents in order to perform tasks associated with said link agents,

said link agents specific to the first wireless local area network and said link agents specific to the second wireless local area network further being independent of the devices in respectively the first wireless local area network and the second wireless local area network, such that performance of a particular task associated with a particular link agent in the first wireless local area network is not bound to a particular device in the first wireless local area network and performance of a task associated with a particular link agent in the second wireless local area network is not bound to a particular device in the second wireless local area network and said tasks can be transferred to another device within respectively the first or the second wireless local area network.

30. A system of wireless local area networks according to claim 29, wherein performance of a task associated with a particular link agent in the first wireless local area network is arranged to be transferred to the second wireless local area network.

31. A system of wireless local area networks according to claim 29, wherein at least one of said devices in said first wireless local area network is common to said second wireless local area network.

32. A system of wireless local area networks according to claim 29, wherein said server device is common to said first wireless local area network and said second wireless local area network.

33. A system of wireless local area networks according to claim 29, wherein at least one of said one or more peripheral devices is common to said first wireless local area network and said second wireless local area network.

34. A method for communicating in a wireless local area network, the wireless local area network comprising a number of devices, including a server device and one or more peripheral devices, said method comprising communicating between devices in the wireless local area network at least partly using link agents, and associating said link agents with tasks to be performed in the wireless local area network comprising means for generating link agents, means for transmitting link agents, means for receiving link agents, and means for processing link agents in order to perform tasks associated with said link agents, said link agents being independent of the devices in the wireless local area network, such that performance of a particular task associated with a particular link agent is not bound to a particular device in the wireless local area network and can be transferred to another device in the wireless local area network.

35. A method according to claim 34, comprising:

generating in the server device a link agent associated with a particular task to be performed in the wireless local area network;

transmitting said link agent from the server device to one of said one or more peripheral devices;

receiving the link agent at said peripheral device; and

processing the link agent in the peripheral device to perform the particular task associated with the link agent.

36. A method according to claim 35, further comprising:

transmitting said link agent from said one of said one or more peripheral devices to another one of said one or more peripheral devices;

receiving the link agent at said other peripheral device; and

processing the link agent in said other of said one or more peripheral devices so as to perform the particular task associated with the link agent.

37. A method according to claim 34, comprising:

generating in the server device a link agent associated with a particular task to be performed in the wireless local area network;

transmitting said link agent from the server device to all of said one or more peripheral devices;

receiving the link agent at each of said one or more peripheral devices; and

processing the link agent in each of said one or more peripheral devices so as to perform the particular task associated with said link agent at each of said one or more peripheral devices.

38. A method according to claim 37, wherein said link agent is one of the following:

a general inquiry link agent for configuration of the local area network, and a setting link agent for setting the peripheral devices into a certain state.

39. A method according to claim 34, wherein said tasks to be performed in the wireless local area network include:

transmitting signalling information, transmitting registration data, setting up the wireless local area network, breaking up the wireless local area network, synchronising the status of the wireless local area network, transmitting information to a peripheral device, monitoring the status of the wireless local area network, delivering an e-mail message, delivering a telecopy to a telecopier device connected to the wireless local area network, operating a printer connected to the wireless local area network, retrieving information, examining the status of a peripheral device, setting a peripheral device into a particular state, and routing information within the local area network.

40. A method according to claim 34, wherein said link agents are arranged to adapt the performance of tasks in the wireless local area network in dependence on the configuration of the wireless local area network.

41. A method according to claim 34, wherein said link agents are arranged to adapt the performance of tasks in the wireless local area network in response to the previous behavior of a user of the wireless local area network.

42. A method according to claim 34, wherein the server device sets up the wireless local area network.

43. A method according to claim 42, wherein the server device sets up the wireless local area network by transmitting link agents to peripheral devices that are to be connected in the wireless local area network.

44. A method according to claim 42, comprising the following steps to set up the wireless local area network:

generating in the server device a link agent for obtaining the configuration data of a peripheral device;

transmitting the link agent for obtaining the configuration data of a peripheral device to each peripheral device that is to be connected in the wireless local area network;

generating in each peripheral device that is to be connected in the wireless local area network a link agent indicating the configuration data of the peripheral device; and

transmitting the link agent from each peripheral device that is to be connected in the wireless local area network to the server device.

45. A wireless local area network according to claim 44, wherein the configuration data of a peripheral device comprises the following information:

the type of the peripheral device;

the properties of the peripheral device;

the operating status of the peripheral device.

46. A method according to claim 34, wherein the server device is portable.

47. A method according to claim 46, wherein the portable server device is a mobile station comprising means for setting up a connection to a mobile communication network.

48. A method according to claim 46, wherein the portable server device sets up the wireless local area network automatically when in a location where devices suitable for connection to the wireless local area network are available.

49. A method according to claim 34, wherein the server device is stationary.

50. A method according to claim 34, wherein the wireless local area network is allocated an identification code.

51. A method according to claim 50, wherein the identification code allocated to the wireless local area network is based on an identification code of the server device.

52. A method according to claim 51, wherein the server device is a mobile station comprising means for setting up a connection to a mobile communication network and the identification code allocated to the wireless local area network is based on the International Mobile Equipment Identity (IMEI) of the mobile station.

53. A method according to claim 51, wherein the identification code allocated to the wireless local area network is used in the wireless local area network to ensure that information transmitted between devices in the wireless local area network is not accessible to devices in another local area network.

54. A method according to claim 34, wherein at least one of said peripheral devices may simultaneously be connected in said wireless local area network and in another wireless local area network.

55. A method according to claim 34, wherein the server device is substantially stationary in the wireless local area network, and at least one of said one or more peripheral devices is a portable peripheral device, said portable peripheral device being arranged to activate the wireless local area network.

56. A wireless local area network according to claim 55, wherein the portable peripheral device activates the wireless local area network automatically when in a location where devices suitable for connection to the wireless local area network are available.

57. A method according to claim 55, wherein the portable peripheral device activates the wireless local area network by transmitting a link agent to the server device and the server device sets up the wireless local area network responsive to receipt of said link agent.

58. A method according to claim 34, wherein communication between devices in the wireless local area network is affected by means of a radio frequency connection.

59. A method according to claim 34, wherein communication between devices in the wireless local area network is affected by means of an optical connection.

60. A mobile station comprising means for setting up a connection to a wireless local area network, communication between devices in the wireless local area network being arranged to be conducted at least partly by means of link agents, said link agents being associated with tasks to be performed in the wireless local area network,

the mobile station comprising means for generating link agents, means for transmitting link agents, means for receiving link agents, and means for processing link agents in order to perform tasks associated with said link agents,

said link agents being independent of the devices in the wireless local area network, such that performance of a particular task associated with a particular link agent is not bound to a particular device in the wireless local area network and can be transferred to another device in the wireless local area network.

61. A mobile station according to claim 60, further comprising means for activating the local area network.

62. A mobile station according to claim 60, arranged to operate as a server device in the wireless local area network.

63. A mobile station according to claim 60, arranged to operate as a peripheral device in the wireless local area network.

64. A mobile station according to claim 60, further comprising means for setting up a connection to a mobile communication network.

65. A peripheral device for use in a wireless local area network in which communication between devices is arranged to be conducted at least partly by means of link agents, said link agents being associated with tasks to be performed in the wireless local area network,

the peripheral device comprising means for setting up a connection to the wireless local area network, means for generating link agents, means for transmitting link agents, means for receiving link agents, and means for processing link agents in order to perform tasks associated with said link agents,

said link agents being independent of the devices in the wireless local area network, such that performance of a particular task associated with a particular link agent is not bound to a particular device in the wireless local area network and can be transferred to another device in the wireless local area network.

66. A link agent for conducting communication in a wireless local area network, the wireless local area network comprising a number of devices, including a server device and, one or more peripheral devices, communication between devices in the wireless local area network being arranged to be conducted at least partly by means of link agents, said link agents being associated with tasks to be performed in the wireless local area network and being independent of the devices in the wireless local area network, such that performance of a particular task associated with a particular link agent is not bound to a particular device in the wireless local area network and can be transferred to another device in the wireless local area network.