Wireless architecture for traditional wire based protocol

• US 8,667,144 B2
• Filed: 07/24/2008
• Issued: 03/04/2014
• Est. Priority Date: 07/25/2007
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Dharmaraju, Dinesh, Krishnan, Ranganathan, Sheth, Soham
• Primary Examiner(s): DOAN, DUYEN MY
• Application Number:
  US12/179,411
• Publication Number:
  US 20090031035A1
• Time in Patent Office: 2,049 Days
• Field of Search: 709/227, 709/203, 709/230
• US Class Current: 709/227
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04W 12/0431 Key distribution or pre-distribution; Key agreement
• CPC Class Codes: H04W 12/069 using certificates or pre-shared keys
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals

Abstract

Aspects describe service discovery of wireless MDDI client-capable devices though interaction with an underlying bearer protocol. Service discovery can be performed when the underlying layer supports multicasting, when the underlying layer is wiMedia UWB MAC and/or UDP/IP. Service discovery can be initiated by a w-MDDI sender and/or a w-MDDI receiver. An optional mutual security association procedure can be conducted if both devices support security and security is necessary.

Claims

1. A method for wirelessly communicating data at a high rate between a host entity and at least one remote wireless Mobile Display Digital Interface (MDDI) client capable device, comprising:

transmitting, from an upper network layer to a lower network layer, a message to obtain a list of devices in a local area that support wireless MDDI;

performing a service discovery process to obtain information related to a plurality of wireless MDDI client capable devices in a local area;

receiving an indication to associate with at least one of the plurality of wireless MDDI client capable devices;

determining security capabilities of each of the plurality of wireless MDDI client capable devices;

selectively performing a security association procedure; and

associating with the at least one of the plurality of wireless MDDI client capable devices.

2. The method of claim 1, wherein the information related to a plurality of wireless MDDI client capable devices includes a string identifier corresponding to a device name, capabilities of the device, and a state indication, wherein the information is retained locally.

3. The method of claim 1, wherein performing a service discovery process comprises:

transmitting the message to the lower layer to obtain the list of devices in the local area that support wireless MDDI;

receiving a response that includes the list of devices;

sending a packet to each of the devices included in the received list; and

receiving a response that contains strings identifiers for each of the responding devices.

4. The method of claim 3, wherein the lower layer supports multicast, the method further comprises transmitting a service query packet to a multicast group to solicit information from a selected wireless MDDI client capable device, wherein the multicast group is specified by a multicast address.

5. The method of claim 3, wherein the lower layer is wiMedia UWB MAC, the method further comprises receiving application specific information elements related to each of the w-MDDI client capable devices.

6. The method of claim 3, wherein the lower layer is UDP/IP, the method further comprising:

transmitting a service query packet to a multicast group on a UDP port;

joining the multicast group on the UDP port; and

receiving a service response from each device that supports w-MDDI.

51. The method of claim 1, wherein the upper network layer comprises a wireless MDDI layer.

7. A wireless communications apparatus, comprising:

a memory that retains instructions related to transmitting a message from an upper network layer to a lower network layer to obtain a list of devices in a local area that support wireless MDDI, performing a service discovery process to gather information related to a plurality of wireless MDDI client capable devices in a local area, receiving a request to associate with at least one of the plurality of wireless MDDI client capable devices, determining security capabilities of each of the plurality of wireless MDDI client capable devices, performing a security association procedure, and associating with the at least one of the plurality of wireless MDDI client capable devices; and

a processor, coupled to the memory, configured to execute the instructions retained in the memory.

8. The wireless communications apparatus of claim 7, wherein the information related to a plurality of wireless MDDI client capable devices includes a string identifier corresponding to a device name, capabilities of the device, and a state indication, wherein the information is retained locally.

9. The wireless communications apparatus of claim 7, wherein the memory further retains instructions related to conveying the message to the lower layer to obtain the list of devices, receiving a response that includes the list of devices, transmitting a packet to each of the devices included in the received list, and receiving a response that contains strings identifiers for each of the responding devices.

10. The wireless communications apparatus of claim 9, wherein the lower layer supports multicast, the memory further retains instructions related to transmitting a service query packet to a multicast group to solicit information from a selected wireless MDDI client capable device, wherein the multicast group is specified by a multicast address.

11. The wireless communications apparatus of claim 9, wherein the lower layer is wiMedia UWB MAC, the memory further retains instructions related to receiving application specific information elements related to each of the w-MDDI client capable devices.

12. The wireless communications apparatus of claim 9, wherein the lower layer is UDP/IP, the memory further retains instructions related to communicating a service query packet to a multicast group on a UDP port, joining the multicast group on the UDP port, and receiving a service response from each device that supports w-MDDI.

52. The wireless communications apparatus of claim 7, wherein the upper network layer comprises a wireless MDDI layer.

13. A wireless communications apparatus that wirelessly communicates data at a high rate, comprising:

means for performing a service discovery process to gather information related to a plurality of wireless MDDI client capable devices in a local area, wherein the means for performing the service discovery process comprises means for transmitting, from an upper network layer to a lower network layer, a message to obtain a list of devices that includes the plurality of wireless MDDI client capable devices in the local area;

means for receiving a request to associate with at least one of the plurality of wireless MDDI client capable devices;

means for determining security capabilities of each of the plurality of wireless MDDI client capable devices;

means for selectively performing a security association procedure; and

means for associating with the at least one of the plurality of wireless MDDI client capable devices.

14. The wireless communications apparatus of claim 13, wherein the information related to a plurality of wireless MDDI client capable devices includes a string identifier corresponding to a device name, capabilities of the device, and a state indication, wherein the information is retained locally.

15. The wireless communications apparatus of claim 13, further comprising:

means for conveying the message to the lower layer to obtain the list of devices;

means for receiving a response that includes the list of devices;

means for transmitting a packet to each of the devices included in the received list, and

means for receiving a response that contains strings identifiers for each of the responding devices.

16. The wireless communications apparatus of claim 15, wherein the lower layer supports multicast, the apparatus further comprises means for transmitting a service query packet to a multicast group to solicit information from a selected wireless MDDI client capable device, wherein the multicast group is specified by a multicast address.

17. The wireless communications apparatus of claim 15, wherein the lower layer is wiMedia UWB MAC, the apparatus further comprises means for receiving application specific information elements related to each of the w-MDDI client capable devices.

18. The wireless communications apparatus of claim 15, wherein the lower layer is UDP/IP, the apparatus further comprising:

means for communicating a service query packet to a multicast group on a UDP port;

means for joining the multicast group on the UDP port; and

means for receiving a service response from each device that supports w-MDDI.

53. The wireless communications apparatus of claim 13, wherein the upper network layer comprises a wireless MDDI layer.

19. A computer program product, comprising:

a nontransitory computer-readable medium comprising;

a first set of codes for causing a computer to perform a service discovery process to obtain information related to a plurality of wireless MDDI client capable devices in a local area, wherein the service discovery process comprises transmitting, from an upper network layer to a lower network layer, a message to obtain a list of devices that includes the plurality of wireless MDDI client capable devices in the local area;

a second set of codes for causing the computer to receive an indication to associate with at least one of the plurality of wireless MDDI client capable devices;

a third set of codes for causing the computer to determine security capabilities of each of the plurality of wireless MDDI client capable devices;

a fourth set of codes for causing the computer to perform a security association procedure; and

a fifth set of codes for causing the computer to associate with the at least one of the plurality of wireless MDDI client capable devices.

20. The computer program product of claim 19, wherein the information related to a plurality of wireless MDDI client capable devices includes a string identifier corresponding to a device name, capabilities of the device, and a state indication, wherein the information is retained locally.

21. The computer program product of claim 19, wherein the lower layer supports multicast.

22. The computer program product of claim 19, wherein the lower layer is wiMedia UWB MAC or UDP/IP.

54. The computer program product of claim 19, wherein the upper network layer comprises a wireless MDDI layer.

61. The computer program product of claim 19, wherein the first set of codes for causing a computer to perform a service discovery process further comprise:

code for transmitting the message to the lower layer to obtain the list of devices in the local area that support wireless MDDI;

code for receiving a response that includes the list of devices;

code for sending a packet to each of the devices included in the received list; and

code for receiving a response that contains strings identifiers for each of the responding devices.

62. The computer program product of claim 19 wherein the lower layer is UDP/IP, and further comprising:

code for transmitting a service query packet to a multicast group on a UDP port;

code for joining the multicast group on the UDP port; and

code for receiving a service response from each device that supports w-MDDI.

23. At least one processor configured to communicate data at a high rate between a host entity and at least one remote wireless MDDI client capable device, comprising:

a first electrical component for performing a service discovery process to obtain information related to a plurality of wireless MDDI client capable devices in a local area, wherein the service discovery process comprises transmitting, from an upper network layer to a lower network layer, a message to obtain a list of devices that includes the plurality of wireless MDDI client capable devices in the local area;

a second electrical component for receiving an indication to associate with at least one of the plurality of wireless MDDI client capable devices;

a third electrical component for determining security capabilities of each of the plurality of wireless MDDI client capable devices;

a fourth electrical component for selectively performing a security association procedure; and

a fifth electrical component for associating with the at least one of the plurality of wireless MDDI client capable devices.

24. The at least one processor of claim 23, wherein the lower layer supports multicast.

25. The at least one processor of claim 23, wherein the lower layer is wiMedia UWB MAC or UDP/IP.

55. The processor of claim 23, wherein the upper network layer comprises a wireless MDDI layer.

26. A method for wirelessly communicating data at a high rate with a host entity, comprising:

transmitting a neighbor list message from an upper network layer to a lower network layer that solicits a list of devices in a local area;

receiving a list of devices in the local area;

sending a wireless MDDI query packet to each of the devices;

receiving a reply that includes string identifiers for the replying device, the reply is received before expiration of a predetermined interval; and

selectively associating with the replying device.

27. The method of claim 26, wherein the neighbor list message is a “

Get Neighbor List”

message and the list of devices is received from a lower layer in a “

Lower Layer Neighbor List Response.”

28. The method of claim 27, wherein the wireless MDDI query packet is a “

w-MDDI Service Query”

packet and the reply is a “

w-MDDI Service Response”

packet.

29. The method of claim 27, wherein the wireless MDDI query packet is a “

w-MDDI Host Query”

packet and the reply is a “

w-MDDI Host Response”

packet.

30. The method of claim 26, wherein the lower layer supports multicasting.

31. The method of claim 26, wherein the lower layer is wiMedia UWB MAC.

32. The method of claim 26, wherein the lower layer is UDP/IP.

33. The method of claim 26, wherein if a reply is not received before expiration of a predetermined interval, the association is unsuccessful and a previous state is resumed.

34. The method of claim 26, further comprises performing mutual security authentication.

56. The method of claim 26, wherein the upper network layer comprises a wireless MDDI layer.

35. A wireless communications apparatus, comprising:

a memory that retains instructions related to transmitting a neighbor list message from an upper network layer to a lower network layer;

wherein the neighbor list message solicits a list of devices in a local area, receiving a list of devices in the local area, sending a wireless MDDI query packet to each of the devices, receiving a reply that includes string identifiers for the replying device, and selectively associating with the replying device, wherein the reply is received before expiration of a predetermined interval; and

a processor, coupled to the memory, configured to execute the instructions retained in the memory.

36. The wireless communications apparatus of claim 35, wherein the lower layer supports multicasting.

37. The wireless communications apparatus of claim 35, wherein the lower layer is wiMedia UWB MAC.

38. The wireless communications apparatus of claim 35, wherein the lower layer is UDP/IP.

39. The wireless communications apparatus of claim 35, wherein if a reply is not received before expiration of a predetermined interval, the association is unsuccessful and a previous state is resumed.

40. The wireless communications apparatus of claim 35, the memory retains instructions related to performing mutual security authentication.

57. The method of claim 35, wherein the upper network layer comprises a wireless MDDI layer.

41. A wireless communications apparatus that wirelessly communicates data at a high rate, comprising:

means for sending a neighbor list message from an upper network layer to a lower network layer, wherein the neighbor list message solicits a list of devices in a local area;

means for receiving a list of devices in the local area;

means for transmitting a wireless MDDI query packet to each of the devices;

means for receiving a reply that includes string identifiers for the replying device, the reply is received before expiration of a predetermined interval; and

means for associating with the replying device.

42. The wireless communications apparatus of claim 41, wherein the lower layer supports multicasting.

43. The wireless communications apparatus of claim 41, wherein the lower layer is wiMedia UWB MAC.

44. The wireless communications apparatus of claim 41, wherein the lower layer is UDP/IP.

45. The wireless communications apparatus of claim 41, wherein if a reply is not received before expiration of a predetermined interval, the association is unsuccessful and a previous state is resumed.

46. The wireless communications apparatus of claim 41, further comprises means for performing mutual security authentication.

58. The wireless communications apparatus of claim 41, wherein the upper network layer comprises a wireless MDDI layer.

47. A computer program product, comprising:

a nontransitory computer-readable medium comprising;

a first set of codes for causing a computer to transmit a neighbor list message from an upper network layer to a lower network layer, wherein the neighbor list message solicits a list of devices in a local area;

a second set of codes for causing the computer to receive a list of devices in the local area;

a third set of codes for causing the computer to transmit a wireless MDDI query packet to each of the devices;

a fourth set of codes for causing the computer to receive a reply that includes string identifiers for the replying device, the reply is received before expiration of a predetermined interval; and

a fifth set of codes for causing the computer to associate with the replying device.

48. The computer program product of claim 47, wherein the lower layer supports multicasting.

49. The computer program product of claim 47, wherein the lower layer is wiMedia UWB MAC or UDP/IP.

59. The computer program product of claim 47, wherein the upper network layer comprises a wireless MDDI layer.

50. At least one processor configured to communicate data at a high rate, comprising:

a first electrical component for transmitting a neighbor list message from an upper network layer to a lower network layer, wherein the neighbor list message solicits a list of devices in a local area;

a second electrical component for receiving a list of devices in the local area;

a third electrical component for sending a wireless MDDI query packet to each of the devices;

a fourth electrical component for receiving a reply that includes string identifiers for the replying device, the reply is received before expiration of a predetermined interval; and

a fifth electrical component for selectively associating with the replying device.

60. The at least one processor of claim 50, wherein the upper network layer comprises a wireless MDDI layer.