Cell network selectively applying proxy mode to minimize power

• US 20070242647A1
• Filed: 01/05/2007
• Published: 10/18/2007
• Est. Priority Date: 03/22/2006
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Bennett, James
• Granted Patent: US 7,720,038 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 76/20 Manipulation of established connections
• CPC Class Codes: H04W 84/10 Small scale networks; Flat hierarchical networks
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A wireless access point and multiple wireless terminals exchange utilization, status, mobility and reception characteristics. Each wireless terminal generates reception characteristics based on transmissions received from the wireless access point and from other devices in the network. In one operating mode, the characteristics gathered by the wireless devices are forwarded to the wireless access point, and, based on all received characteristics, the wireless access point selects a client device for the relay of communications between itself and another client device. In another mode of operation, the access point selects a relay proxy on a transmission by transmission basis. In response to a request, a servicing client device repeats intercepted transmissions sent by a client device and intended for the access point.

Claims

1. A wireless network in a communication infrastructure having a packet switched backbone network, the wireless network comprising:

an access point, communicatively coupled to the packet switched backbone network, having access point processing circuitry and access point wireless transceiver circuitry;

a plurality of client devices, each having client processing circuitry and client wireless transceiver circuitry;

the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters;

managing communications both between the plurality of client devices and the packet switched backbone network;

receiving reception characteristics from at least some of the plurality of client devices, each reception characteristic received from a client device relating to evaluations made by the client device regarding transmissions intercepted by the client device, the intercepted transmissions between another of the plurality of client devices and the access point;

based upon the received reception characteristics, selecting a first client device to act as a relay proxy to relay wireless transmissions between the access point and the second client device; and

directing the first client device to act as a relay proxy to relay wireless transmissions between the access point and the second client device.

2. The wireless network of claim 1, the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters further:

receiving status characteristics from at least some of the plurality of client devices, each status characteristic received from a client device relating to status characteristics of the client device; and

wherein selecting the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the status characteristics of the first client device.

3. The wireless network of claim 2, wherein the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters determining whether to direct the first client device to act as a relay proxy further based upon the status characteristics of the second client device.

4. The wireless network of claim 2, wherein status characteristics received from the first client device indicate that the first client device is wall plug powered.

5. The wireless network of claim 1, the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters further:

receiving mobility characteristics from at least some of the plurality of client devices, each mobility characteristic received from a client device relating to mobility characteristics of the client device; and

wherein selecting the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the mobility characteristics of at least one of the first client device and the second client device.

6. The wireless network of claim 5, wherein the mobility characteristics indicate that the first client device is stationary.

7. The wireless network of claim 1, the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters further:

receiving utilization characteristics from at least some of the plurality of client devices, each utilization characteristic received from a client device relating to utilization characteristics of the client device; and

wherein selecting the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the utilization characteristics of the first client device.

8. The wireless network of claim 7, wherein the utilization characteristics indicate that the first client device has sufficient communication capability and processing capability to relay the wireless transmissions between the access point and the second client device.

9. The wireless network of claim 1, wherein in relaying wireless transmissions between the access point and the second client device, the first client device relays only transmissions sent by the second client device to the access point.

10. The wireless network of claim 1, wherein in relaying wireless transmissions between the access point and the second client device, the first client device:

relays transmissions sent by the second client device to the access point; and

relays transmissions sent by the access point to the second client device.

11. An access point for use in a wireless network to service a plurality of client devices including a first client device and a second client device, the access point comprising:

a network interface coupled to a packet switched backbone network;

access point wireless transceiver circuitry; and

access point processing circuitry coupled to the network interface and to the access point wireless transceiver circuitry, the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters;

manages communications between the plurality of client devices and the packet switched backbone network;

receives reception characteristics from at least some of the plurality of client devices, each reception characteristic received from a client device relating to evaluations made by the client device regarding transmissions intercepted by the client device transmitted between another of the plurality of client devices and the access point;

based upon the received reception characteristics, selects a first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device; and

directing the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device.

12. The access point of claim 11, the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters further:

receives status characteristics from at least some of the plurality of client devices, each status characteristic received from a client device relating to status characteristics of the client device; and

wherein the selection of the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the status characteristics of the first client device.

13. The access point of claim 12, wherein the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters determines whether to direct the first client device to act as a relay proxy further based upon the status characteristics of the second client device.

14. The access point of claim 12, wherein status characteristics received from the first client device indicate that the first client device is wall plug powered.

15. The access point of claim 11, the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters further:

receives mobility characteristics from at least some of the plurality of client devices, each mobility characteristic received from a client device relating to mobility characteristics of the client device; and

wherein the selection of the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the mobility characteristics of at least one of the first client device and the second client device.

16. The access point of claim 15, wherein the mobility characteristics indicate that the first client device is stationary.

17. The access point of claim 11, the access point processing circuitry, using the access point wireless transceiver circuitry and an associated set of communication parameters further:

receives utilization characteristics from at least some of the plurality of client devices, each mobility characteristic received from a client device relating to utilization characteristics of the client device; and

wherein the selection of the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the utilization characteristics of the first client device.

18. The access point of claim 17, wherein the utilization characteristics indicate that the first client device has sufficient communication capability and processing capability to relay the wireless transmissions between the access point and the second client device.

19. The access point of claim 11, wherein in relaying wireless transmissions between the access point and the second client device, the first client device relays only transmissions sent by the second client device to the access point.

20. The access point of claim 11, wherein in relaying wireless transmissions between the access point and the second client device, the first client device:

relays transmissions sent by the second client device to the access point; and

relays transmissions sent by the access point to the second client device.

21. A client device for use in a wireless network in a communication infrastructure having a packet switched backbone network and having an access point communicatively coupled to the packet switched backbone network and a second client device, the client device comprising:

client device wireless transceiver circuitry;

client device processing circuitry; and

the client processing circuitry, using the client device wireless transceiver circuitry;

receiving a request from the access point to report reception characteristics relating to evaluations made by the client device regarding transmissions intercepted by the client device transmitted between another of the plurality of client devices and the access point;

determining reception characteristics relating to transmissions intercepted by the client device transmitted between another of the plurality of client devices and the access point;

reporting the reception characteristics to the access point;

receiving a direction from the access point to act as a relay proxy to relay wireless transmissions between the access point and the second client device; and

acting as a relay proxy to relay wireless transmissions between the access point and the second client device.

22. The client device of claim 21, the client device processing circuitry, using the client device wireless transceiver circuitry and an associated set of communication parameters further:

receiving a request from the access point to report status characteristics relating to a status of the client device;

determining status characteristics of the client device;

reporting the status characteristics to the access point;

wherein the selection of the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the status characteristics of the first client device.

23. The client device of claim 22, wherein the access point processing circuitry, using the client device wireless transceiver circuitry and an associated set of communication parameters determines whether to direct the first client device to act as a relay proxy further based upon the status characteristics of the second client device.

24. The client device of claim 22, wherein status characteristics received from the first client device indicate that the first client device is wall plug powered.

25. The client device of claim 21, the client device processing circuitry, using the client device wireless transceiver circuitry and an associated set of communication parameters further:

receiving a request from the access point to report status characteristics relating to a mobility of the client device;

determining mobility characteristics of the client device;

reporting the mobility characteristics to the access point;

wherein the selection of the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the mobility characteristics of the first client device.

26. The client device of claim 25, wherein the mobility characteristics indicate that the first client device is stationary.

27. The client device of claim 21, the client device processing circuitry, using the client device wireless transceiver circuitry and an associated set of communication parameters further:

receives utilization characteristics from at least some of the plurality of client devices, each mobility characteristic received from a client device relating to mobility characteristics of the client device; and

wherein the selection of the first client device to act as a relay proxy by relaying wireless transmissions between the access point and the second client device is further based upon the utilization characteristics of the first client device.

28. The client device of claim 27, wherein the utilization characteristics indicate that the first client device has sufficient communication capability and processing capability to relay the wireless transmissions between the access point and the second client device.

29. The client device of claim 21, wherein in relaying wireless transmissions between the access point and the second client device, the first client device relays only transmissions sent by the second client device to the access point.

30. The client device of claim 21, wherein in relaying wireless transmissions between the access point and the second client device, the first client device:

relays transmissions sent by the second client device to the access point; and

relays transmissions sent by the access point to the second client device.