System and method for dynamically allocating data rates and channels to clients in a wireless network

• US 20070254672A1
• Filed: 06/26/2007
• Published: 11/01/2007
• Est. Priority Date: 03/26/2003
• Status: Active Grant

• Current Assignee: Behram Dacosta, David Desch
• Original Assignee: Behram Dacosta, David Desch
• Inventors: Dacosta, Behram, Desch, David
• Granted Patent: US 7,539,498 B2
• Time in Patent Office: Days
• US Class Current: 455/452.100
• CPC Class Codes: H04W 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Disclosed is a system, apparatus, and method for dynamically allocating wireless channels in a wireless network. At least two client devices are present in the wireless network. Each client device is capable of transceiving wireless data over a wireless channel. In one embodiment, a server capable of a transceiving wireless data over at least one wireless channel determines the number of client devices in the wireless network. The server allocates client devices to different wireless channels. Particularly, client devices that receive data at substantially different data rates are allocated to different wireless channels in order to optimize the total system utility of the wireless network. Furthermore, client devices that receive data at substantially similar data rates are allocated to the same wireless channel.

Claims

1-38. -38. (canceled)

39. A system for dynamically assigning wireless channels in a wireless network, the system comprising:

a first client device having a transceiver to transceive wireless data, the first client device being associated with the wireless network and assigned to a wireless channel; and

a second client device having a transceiver to transceive wireless data, the second client to associate with the wireless network by requesting assignment of a wireless channel, wherein if the first and second client devices receive data at substantially different data rates, the first and second client devices are assigned to different wireless channels, whereas, if the first and second client devices receive data at substantially similar data rates, the first and second client devices are assigned to a common wireless channel, in order to optimize total system utility of the wireless network;

wherein the first and second client devices transceive data on a common wireless channel based upon a power level selected to maximize data rate transfer in view of power level requirements for the wireless network.

40. The system of claim 39, wherein, in order to select the power level to maximize data rate transfer between the first and second client devices, data rates at which the first and second client device receive data at are estimated at a plurality of different transmit power levels.

41. The system of claim 39, wherein if the first and second client devices receive data at substantially different data rates, the second client devices is assigned to a wireless channel to which a third client device is already assigned that has a substantially similar data receive rate.

42. The system of claim 41, wherein the second and third client devices transceive data on channel based upon a power level selected to maximize data rate transfer in view of power level requirements for the wireless network.

43. The system of claim 42, wherein, in order to select the power level to maximize data rate transfer between the second and third client devices, data rates that the second and third client device receive data at are estimated a plurality of different transmit power levels.

44. The system of claim 42, wherein at least a pair of the first, second, and third client devices are grouped into near client devices that are relatively near to a server or far client devices that are relatively far from the server.

45. The system of claim 44, wherein the server is a home server for transmitting video and audio data streams to client devices over wireless channels.

46. The system of claim 44, wherein the server is further coupled to another network.

47. A method for dynamically assigning wireless channels in a wireless network, the method comprising:

associating a first client with the wireless network;

assigning the first client device to a wireless channel;

associating a second client device with the wireless network by requesting assignment of a wireless channel;

assigning the first and second client devices to different wireless channels if the first and second client devices receive data at substantially different data rates;

assigning the first and second client devices to a common wireless channel if the first and second client devices receive data at substantially similar data rates in order to optimize total system utility of the wireless network;

wherein if the first and second client devices transceive data on a common wireless channel, selecting a power level to maximize data rate transfer in view of power level requirements for the wireless network.

48. The method of claim 47, wherein, in order to select the power level to maximize data rate transfer between the first and second client devices, data rates that the first and second client device receive data at are estimated at a plurality of different transmit power levels.

49. The method of claim 47, wherein if the first and second client devices receive data at substantially different data rates, further comprising assigning the second client device to a wireless channel to which a third client device is already assigned wherein the third client has a substantially similar data receive rate.

50. The method of claim 49, wherein the second and third client devices transceive data on channel based upon a power level selected to maximize data rate transfer in view of power level requirements for the wireless network.

51. The method of claim 50, wherein, in order to select the power level to maximize data rate transfer between the second and third client devices, data rates that the first and second client device receive data at are estimated at a plurality of different transmit power levels.

52. The method of claim 50, further comprising grouping at least a pair of the first, second, and third client devices into near client devices that are relatively near to a server or far client devices that are relatively far from the server.

53. The method of claim 52, wherein the server is a home server for transmitting video and audio data streams to client devices over wireless channels.

54. The method of claim 52, wherein the server is further coupled to another network.

55. A first client device for use in a wireless network with a second client device in which wireless channels are dynamically assigned, the first client device comprising:

a transceiver to transceive wireless data; and

a processor to implement a software module to implement operations including;

associating the first client device with the wireless network;

transceving wireless data on an assigned wireless channel at an assigned power level;

wherein if the first and second client devices receive data at substantially different data rates, the first and second client devices are assigned to different wireless channels, whereas, if the first and second client devices receive data at substantially similar data rates, the first and second client devices are assigned to a common wireless channel in order to optimize total system utility of the wireless network and the first and second client device are assigned a power level selected to maximize data rate transfer in view of power level requirements for the wireless network.

56. The first client device of claim 55, wherein, in order to select the power level to maximize data rate transfer between the first and second client devices, data rates at which the first and second client device receive data at are estimated at a plurality of different transmit power levels.

57. The first client device of claim 55, wherein if the first and second client devices receive data at substantially different data rates, the first client devices is assigned to a wireless channel to which a third client device is already assigned that has a substantially similar data receive rate.

58. The first client device of claim 57, wherein the first and third client devices transceive data on channel at an assigned power level selected to maximize data rate transfer in view of power level requirements for the wireless network.

59. The first client device of claim 58, wherein, in order to select the power level to maximize data rate transfer between the first and third client devices, data rates that the first and third client device receive data at are estimated at a plurality of different transmit power levels.

60. The first client device of claim 58, wherein at least a pair of the first, second, and third client devices are grouped into near client devices that are relatively near to a server or far client devices that are relatively far from the server.

61. The first client device of claim 60, wherein the server is a home server for transmitting video and audio data streams to client devices over wireless channels.

62. The first client device of claim 60, wherein the server is further coupled to another network.