Method and Structure in Support of the Formation of Substantially Co-Linear Wireless Device Pairings and Mitigation of Interference Effects in a Digital Multi-Media Communication Environment

• US 20080299912A1
• Filed: 11/30/2007
• Published: 12/04/2008
• Est. Priority Date: 05/30/2007
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Inventors: Unger, Robert
• Granted Patent: US 8,055,191 B2
• Time in Patent Office: Days
• US Class Current: 455/70
• CPC Class Codes: H04B 1/207 with an audio or audio/video bus for signal distribution H04B1/205 takes precedence

Abstract

A method and structure that supports the formation of co-linear device pairs and mitigation of undesired interference in a digital multi-media communication environment. Compass orientation information of co-located devices within range of one another in a wireless communication environment is used to determine whether sufficiently co-linear device pairing opportunities exist and may also be used to identify and/or mitigate undesired interference conditions. Various remedial actions may be performed to enhance co-linear device pairing and mitigation action may be taken to mitigation interference between substantially co-linear and co-located devices in the environment.

Claims

1. A method of forming a co-linear relationship between wireless devices in a wireless communication environment, comprising:

a first wireless device in the environment receiving a second compass orientation of a second wireless device co-located in the defined environment;

determining whether the second compass orientation of the second wireless device is sufficiently co-linear with a first compass orientation of the first wireless device to support wireless transmission of data between the first and second wireless devices;

if the second compass orientation of the second wireless device is not sufficiently co-linear with the first compass orientation of the first wireless device, performing a remedial action in support of achieving a sufficiently co-linear relationship for at least one of the first and second wireless devices.

2. A method of forming a substantially co-linear wireless device pair in a communication environment, comprising:

positioning a first device and a second wireless device to be in a roughly co-linear arrangement in the environment, wherein the first and second wireless devices have first and second multiple axis compass elements, respectively;

determining a first compass orientation of the first wireless device with respect to a first fixed reference of the environment;

determining a second compass orientation of the second wireless device with respect to the second fixed reference of the environment;

determining from the first and second compass orientations whether the first and second wireless devices are sufficiently co-linear to support wireless transmission of data between the first and second wireless devices; and

if it is determined that the first and second wireless devices are not sufficiently co-linear to support wireless transmission of data between the first and second wireless devices, further comprising performing a remedial action in support of achieving a sufficiently co-linear relationship for at least one of the first and second wireless devices.

6. The method of claim 2, wherein if it is determined from the first and second compass orientations that the first and second wireless devices are sufficiently co-linear to form a substantially co-linear pair, further comprising determining whether the substantially co-linear pair is substantially co-linear with a wireless device in the environment.

7. The method of claim 6, further comprising:

identifying one or more wireless devices co-located with the substantially co-linear device pair in the environment sharing an orientation substantially approximate either of the first and second compass orientations of the first and second wireless devices, respectively, and within communication range of the first substantially co-linear device pair;

identifying any co-located wireless device of the one or more co-located wireless devices having an orientation substantially approximate the first or second compass orientations but not substantially parallel the first communication path as a co-linear wireless device, wherein the substantially co-linear device pair and each identified co-linear wireless device are impermissibly co-linear; and

for an identified co-linear wireless device, performing a remedial action to cause the co-linear wireless device to no longer be co-linear with the substantially co-linear device pair.

8. The method of claim 7, wherein performing the remedial action to cause the co-linear wireless device to no longer be co-linear with the substantially co-linear device pair further comprising performing one or more of changing the first or second compass orientations of the first and second wireless devices to define a new communication path between the first and second wireless devices that is substantially co-linear to support wireless communications between the first device pair, changing the orientation of an identified co-linear wireless device to have a new orientation that is not substantially co-linear with either of the first and second compass orientations of the first and second wireless devices, and communicating a message that the co-linear wireless device and the substantially co-linear device pair are impermissibly co-linear.

9. The method of claim 7, for a wireless device of the one or more co-located wireless devices identified as having an orientation substantially approximate either the first and second compass orientations, determining whether the orientation of the wireless device would support a line of communication that is substantially parallel a first communication path between the first and second wireless devices of the first substantially co-linear pair

10. The method of claim 9, wherein if the orientation of the wireless device is substantially parallel the first communication path, determining whether the wireless device substantially parallel the first communication path is proximate enough to the first communication path to cause interference between the wireless device and the first co-linear pair to exceed a permissible interference level and if interference between the wireless device and the first co-linear pair exceeds a permissible interference level, performing a mitigation action to mitigate the interference between the wireless device and the first co-linear pair.

11. The method of claim 7, wherein determining whether the substantially co-linear pair is impermissibly co-linear with another wireless device in the environment, further comprises:

determining channel usage of the wireless device and channel usage of the substantially co-linear pair; and

if the channel usage of the wireless device approximates channel usage of the substantially co-linear pair, then the wireless device and the substantially co-linear pair are co-linear with respect to each other.

12. The method of claim 11, further comprising performing a remedial action to mitigate the co-linear relationship between the substantially co-linear pair and the wireless device.

13. The method of claim 11, wherein if the detected channel usage of the wireless device does not approximate channel usage of the substantially co-linear pair, then the substantially co-linear pair and the wireless device are parallel and not co-linear.

3. The method of 2, wherein if it is determined from the first and second compass orientations that the first and second wireless devices are not sufficiently co-linear to support wireless transmission of data between the first and second wireless devices, further comprising adjusting a position of least one of the first and second wireless devices to achieve a greater degree of co-linearity between first and second wireless devices.

4. The method of 2, wherein if it is determined from the first and second compass orientations that the first and second wireless devices are not sufficiently co-linear to support wireless transmission of data between the first and second wireless devices, the remedial action comprises changing the first compass orientation of the first wireless device in support of achieving a sufficiently co-linear relationship between the first wireless device and a third wireless device in the environment.

5. The method of 2, wherein if it is determined from the first and second compass orientations that the first and second wireless devices are not sufficiently co-linear to support wireless transmission of data between the first and second wireless devices, further comprising communicating a message that quantifies the degree of non-co-linearity between the first and second wireless devices.

14. A method of using compass orientation information to form communication pairings in a communication environment, comprising:

a first control subsystem of a first wireless device interrogating a first compass element of the first wireless device to determine a first compass orientation of the first wireless device with respect to a fixed reference of the environment;

a first transmit element of the first wireless device communicating its first compass orientation to other wireless devices within communication range in the environment;

a first receive element of the first wireless device receiving one or more orientations corresponding to one or more other wireless devices in the environment;

determining whether the first compass orientation is substantially aligned to any of the one or more orientations of the one or more other wireless devices received by the first receive element to identify one or more potentially co-linear wireless devices of the one or more other wireless devices;

determining whether any of the one or more potentially co-linear wireless devices is substantially co-linear with the first wireless device to support wireless transmission of data between the first wireless device and the substantially co-linear wireless device; and

the first control subsystem of the first wireless device selecting one of the substantially co-linear wireless devices with which to form a substantially co-linear pair capable of wireless transmission of data.

15. The method of claim 14, further comprising for any other of the substantially co-linear wireless devices not paired with the first wireless device performing a remedial action to mitigate interference, if present, between the first wireless device and the any other of the substantially co-linear wireless devices.

16. The method of claim 14, wherein for a potentially co-linear wireless device of the one or more potentially co-linear wireless devices identified, further comprising:

the first receive element of the first wireless device detecting channel usage of the potentially co-linear wireless device;

determining whether the channel usage of the potentially co-linear wireless device is approximate the channel usage of the first wireless device; and

if the channel usage of the potentially co-linear wireless device is not approximate the channel usage of the first wireless device, the potentially co-linear wireless device is not co-linear to the first wireless device and the first wireless device is parallel and collocated with respect to the potentially co-linear wireless device.

17. The method of claim 16, wherein upon detection of interference between data transmission by the first wireless device along a first communication path and data transmission by the potentially co-linear wireless device, performing a remedial action to mitigate interference between the potentially co-linear wireless device and the wireless device.

18. The method of claim 16, wherein if the channel usage of the potentially co-linear wireless device is approximate the channel usage of the first wireless device, determining whether temporal alignment of data transmission along a first communication path by the first wireless device and along a second communication path by the potentially co-linear wireless device results in interference between the first and second communication paths.

19. The method of claim 18, further comprising performing a remedial action to mitigate interference between the first and second communication paths during periods of temporally aligned wireless data communication.

20. A wireless communication system that provides for the formation of co-linear device pairs of devices in a wireless communication environment, comprising:

a first wireless device further comprising;

a first control subsystem;

a first transmitter element in cooperative arrangement with and controlled by the first control subsystem;

a first compass element in cooperative arrangement with and controlled by the first control subsystem, wherein the first compass element is operable to determine a first compass orientation of the first wireless communication device with respect to a first fixed reference in the environment and the first control subsystem interrogates the first compass element for the first compass orientation of the first wireless device;

a first antenna element coupled to the first transmitter element;

a digital data source operatively coupled to the first control subsystem of the first wireless device;

a second wireless communication device further comprising;

a second control subsystem;

a first receiver element in cooperative arrangement with and controlled by the second control subsystem;

a second compass element in cooperative arrangement with and controlled by the second control subsystem, wherein the second compass element is operable to determine a second compass orientation of the second wireless device with respect to a second fixed reference in the environment and the second control subsystem interrogates the second compass element for the second compass orientation of the second wireless device; and

a second antenna element coupled to the first receiver element; and

a data sink operatively coupled to the second control subsystem of the second wireless device;

wherein one or both of the first and second control subsystems determine from the first and second compass orientations whether the first and second wireless devices are sufficiently co-linear to support wireless transmission of data between the first and second wireless devices.

21. The system of claim 20, wherein if one or both of the first and second control subsystems determine from the first and second compass orientations that the first and second wireless devices are sufficiently co-linear to support wireless transmission of data between the first and second wireless devices, the first and second wireless devices are controlled by said first and second control subsystems, respectively, to form a substantially co-linear device pair.

22. The system of claim 20, wherein one or both of the first and second control subsystems determine from the first and second compass orientations if the first and second wireless devices are substantially parallel and in close enough proximity to cause interference and perform an interference mitigation action if interference exceeds an interference threshold.

23. The system of claim 20, wherein if one or both of the first and second control subsystems determine from the first and second compass orientations that the first and second wireless devices are not sufficiently co-linear to support wireless transmission of data, at least one of said first and second control subsystems function in support of a remedial action for achieving a sufficiently co-linear relationship for at least one of the first and second wireless devices.

24. A wireless communication device operable to operate in co-linear relation with another wireless device in a wireless communication environment, comprising:

a first control subsystem;

a first compass element in cooperative arrangement with and controlled by the first control subsystem, wherein the first compass element is operable to determine a first compass orientation of the first wireless communication device with respect to a first fixed reference in the environment and communicate the first compass orientation to the first control subsystem of the first wireless device;

a first transmit/receive element in cooperative arrangement with and controlled by the first control subsystem, wherein the first transmit/receive element is operable to receive a second compass orientation of a second wireless entity co-located within range of the first wireless device in the environment and communicate the second compass orientation to the first control subsystem; and

a first antenna element coupled to the first transmit/receive element;

wherein the first control subsystem determines from the first and second compass orientations whether the first orientation of the first wireless devices is sufficiently co-linear with the second compass orientation to support wireless transmission of data between the first and second wireless devices.

25. The wireless device of claim 24, wherein the first control subsystem determines from the first and second compass orientations that the first and second wireless devices are sufficiently co-linear to support wireless transmission of data between the first and second wireless devices and the first control subsystem controls the first wireless device to form a substantially co-linear device pair with the second wireless device.

26. The wireless device of claim 24, wherein the first control subsystem determines from the first and second compass orientations if the first and second wireless devices are substantially parallel and in sufficient proximity to cause interference that exceeds an interference threshold and if so, the first control subsystem performs an interference mitigation action.

27. The wireless device of claim 24, wherein if the first control subsystem determines from the first and second compass orientations that the first and second wireless devices are not sufficiently co-linear to support wireless transmission of data, said first control subsystem performs a remedial action towards achieving a sufficiently co-linear relationship for the first wireless device.