Antenna unit and method of transmission or reception

• US 20060232468A1
• Filed: 10/31/2005
• Published: 10/19/2006
• Est. Priority Date: 02/02/2005
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Mizoguchi, Satoshi, Parker, Steve Carl Jamieson
• Application Number:
  US11/261,516
• Publication Number:
  US 20060232468A1
• Time in Patent Office: Days
• US Class Current: 342/359
• CPC Class Codes: H01Q 1/241 used in mobile communications, e.g. GSM H01Q1/247, H01Q1/248 take precedence
• CPC Class Codes: H01Q 3/24 varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0618 Space-time coding

Abstract

An antenna unit comprising orientation detection means and/or force detection means and an antenna is operable to control its transmission and/or reception characteristic in response to detected orientation of the antenna unit. Absolute orientation of the unit will affect the transmission and/or reception characteristics; in one embodiment changes in orientation and motion will affect these characteristics in order to take account of Doppler effects.

Claims

1. An antenna unit for connection with a communications device, for use in establishing wireless communication between said communications device and a further device, the antenna unit comprising an accelerometer operable to detect orientation with respect to gravity and a first antenna, the antenna unit being arranged in operation to modify at least a first transmission characteristic in response to detected orientation.

3. An antenna unit according to claim 1, comprising modification means to modify transmission characteristics, said means operable to adjust a modulation and coding scheme in response to any or all of the following:

a determined velocity of the antenna unit; and

a detected acceleration of the antenna unit, for the purpose of mitigating for Doppler effects in transmission or reception.

4. An antenna unit according to claim 1, further comprising modification means to modify transmission or reception characteristics, said means including any or all of the following;

selection means for selecting amongst a plurality of antennas of the antenna apparatus, and;

adjustable beam forming means.

5. An antenna unit according to claim 4 wherein one or more antennas are selectable in response to a detected orientation of the antenna unit, for the purpose of selecting or maintaining an effective beam orientation.

6. An antenna unit according to claim 4 wherein the beam forming means is adjustable in response to a detected orientation of the antenna unit, for the purpose of selecting or maintaining an effective beam orientation.

7. An antenna unit according to claim 6 wherein the beam forming means is adjustable by means of any or all of the following:

multiple feed points; and

programmable lumped parasitic elements.

8. An antenna unit according to claim 3 wherein adjustment to the modulation and coding scheme may comprise any or all of the following:

adjustment of data rate;

adjustment of transmitted signal power;

adjustment of modulation mode;

adjustment of codec parameters;

adjustment of error protection scheme; and

adjustment of type of decoder used.

9. An antenna unit according to claim 1 arranged in operation to communicate with communication hardware of a radio communication system in response to a detected orientation, for the purpose of compensating for said orientation.

10. An antenna unit according to claim 1 wherein one or more antennas of the antenna unit occupy different physical orientations relative to another antenna of the antenna unit.

11. An antenna unit according to claim 1 wherein each antenna of the antenna unit has a directional response profile which is different from at least one other antenna of the antenna unit.

12. An antenna unit according to claim 1 further arranged in operation to initially configure itself in response to detected orientation for when a transmission or reception is first made.

13. An antenna unit according to claim 1 further comprising means arranged in operation to cause data to be transmitted indicating the effective beam orientation of the antenna unit.

14. An antenna unit according to claim 1 further comprising means arranged in operation to receive data indicating the desired effective beam orientation of the antenna unit.

15. An antenna unit according to claim 1 further comprising input means arranged in operation to enable a user to set the desired effective beam orientation of the antenna unit.

16. An antenna unit according to claim 1 wherein the antenna unit further comprises a global positioning receiver.

17. An antenna unit according to claim 16 and wherein the orientation detection means comprises a magnetic sensor.

18. An antenna unit in accordance with claim 17 arranged in operation to send positional data and compass information to a navigation means, for determining a desired direction.

19. An antenna unit in accordance with claim 18 operable to receive positional data and compass information from a corresponding device, and operable to orient transmission and reception beams with respect to said received data.

20. An antenna unit according to claim 1 wherein the antenna apparatus is arranged in operation to facilitate multiple input, multiple output communications.

21. An antenna unit according to claim 1 wherein the orientation detection means is arranged in operation to trigger an alarm, if said alarm is set.

22. An antenna unit according to claim 1 and comprising processing means arranged in operation to gauge whether detected motion of the device is likely to cause damage.

23. An antenna unit according to claim 22 arranged in operation to initially notify the user in the event that the processing means determines that detected motion of the device is likely to cause damage, and thereafter to notify a third party for any or all of the following reasons:

such motion occurs again to a defined extent, and;

such motion occurs again over a defined period.

24. An antenna unit according to claim 1 wherein a processing means is further arranged in operation to parse detected orientations as input for use either by a host device or for transmission to a third party.

25. An antenna unit according to claim 1 wherein the orientation detector is an accelerometer, and further comprising recording means arranged in operation to monitor the output of the accelerometer, for the purpose of providing information concerning motion in the event of a crash.

26. A mobile communication device comprising the apparatus of claim 1.

27. A mobile communication device according to claim 26 wherein the mobile communication device is any one of a laptop, a computer, a PDA, a mobile phone, input device, and an entertainment device.

28. A vehicle comprising the apparatus of claim 1.

2. An antenna unit for connection with a communications device, for use in establishing wireless communication between said communications device and a further device, the antenna unit comprising at least an accelerometer operable to detect orientation with respect to gravity and at least a first antenna, the antenna unit being arranged in operation to modify at least a first reception characteristic in response to detected orientation.

29. A method of transmission or reception by an antenna apparatus, the method comprising the steps of:

detecting an acceleration of the antenna apparatus, and;

modifying at least a first transmission or reception characteristic of the antenna apparatus in response to a determined orientation.

30. A method of transmission by an antenna apparatus according to claim 29, wherein the step of modifying the transmission characteristics further comprises adjusting parameters of a modulation and coding scheme in response to any or all of:

the determined velocity of the apparatus; and

the detected acceleration of the apparatus, for the purpose of mitigating for Doppler effects.

31. A method of transmission or reception by an antenna apparatus according to claim 29, wherein the step of modifying the transmission or reception characteristics further comprises any or all of the following steps:

selecting amongst a plurality of antennas of the antenna apparatus, and;

adjusting a beam pattern from one or more antennas of the antenna apparatus.

32. A method of transmission or reception by an antenna apparatus according to claim 31 wherein the step of selecting one or more antennas is responsive to the detected orientation of the antenna apparatus, for the purpose of selecting or maintaining a transmission orientation.

33. A method of transmission or reception by an antenna apparatus according to claim 31 wherein the step of adjusting the beam pattern from one or more antennas of the antenna apparatus is responsive to the detected orientation of the antenna apparatus, for the purpose of selecting or maintaining a transmission orientation.

34. A computer program product comprising processor implementable instructions to cause a processing means to carry out those steps of the method of claim 29.

35. A storage medium storing processor implementable instructions to cause a processing means to carry out those steps of the method of claim 29.

36. A signal carrying processor implementable instructions to cause a processing means to carry out those steps of the method of claim 29.