Wireless transmission precoding

• US 10,027,388 B2
• Filed: 12/13/2013
• Issued: 07/17/2018
• Est. Priority Date: 04/26/2013
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Zhu, Yuan, Li, Qinghua, Chen, Xiaogang
• Primary Examiner(s): Vu, Huy D
• Assistant Examiner(s): CUNNINGHAM, KEVIN M
• Application Number:
  US14/778,040
• Publication Number:
  US 20160308593A1
• Time in Patent Office: 1,677 Days
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04B 7/0469 taking special antenna structures, e.g. cross polarized antennas into account
• CPC Class Codes: H04B 7/0486 taking channel rank into account
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04L 49/109 Integrated on microchip, e.g. switch-on-chip
• CPC Class Codes: H04W 28/0263 involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
• CPC Class Codes: H04W 4/025 using location based information parameters
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

Embodiments of the present disclosure describe systems and methods for precoding wireless transmissions. Various embodiments may precode rank-one or rank-two wireless transmissions onto four antennas. Various embodiments may precode wireless transmissions using a precoding matrix selected from a group of matrices, wherein different groups of matrices differ in total angular region, number of beams, or angular distance between beams. Other embodiments may be described and/or claimed.

Claims

1. An apparatus for precoding wireless transmissions on four antennas, comprising:

one or more computing processors;

selection logic to be operated by the one or more computing processors to select, based on an indicator from a user equipment, a precoding matrix from a set of matrices, wherein the set of matrices are calculated by using elements of

2. The apparatus of claim 1, further comprising:

a touch screen display.

3. The apparatus of claim 1, wherein the precoding matrix is selected from the set of matrices representable as

4. The apparatus of claim 1, further comprising:

reception logic to receive the indicator from the user equipment, wherein the indicator specifies a particular precoding matrix to be selected by the selection logic.

5. The apparatus of claim 4, further comprising:

one or more antennas, coupled with the reception logic, to receive the indicator from the user equipment.

6. One or more computer readable media having instructions thereon which, when executed by one or more processing devices of an apparatus, cause the apparatus to:

select, based on an indicator from a user equipment, a precoding matrix from a set of matrices, wherein the set of matrices are calculated by using elements of

7. The one or more computer readable media of claim 6, wherein the one or more processing devices are included in a System on Chip.

8. The one or more computer readable media of claim 6,

wherein the precoding matrix is selected from the set of matrices representable as

9. The one or more computer readable media of claim 6, further having instructions thereon which, when executed by the one or more processing devices of the apparatus, cause the apparatus to:

receive the indicator from the user equipment, wherein the indicator specifies a particular precoding matrix to be selected by the apparatus.

10. The one or more computer readable media of claim 6, wherein the one or more computer readable media comprises a non-volatile memory.

11. An apparatus for indicating a selected precoding matrix, comprising:

one or more computing processors;

selection logic to be operated by the one or more computing processors to select a precoding matrix, for precoding a rank-one wireless transmission on four antennas, from a set of matrices, wherein the set of matrices are calculated by using elements of

12. The apparatus of claim 11,

wherein the precoding matrix is selected from the set of matrices representable as

13. The apparatus of claim 12, further comprising:

one or more antennas to wirelessly transmit the indicator to the access node.

14. The apparatus of claim 11, further comprising a global positioning system device.

15. One or more computer readable media having instructions thereon which, when executed by one or more processing devices of an apparatus, cause the apparatus to:

select a precoding matrix, for precoding a rank-one wireless transmission on four antennas, from a set of matrices, wherein the set of matrices are calculated by using elements of

16. The one or more computer readable media of claim 15, wherein the one or more computer readable media comprises a non-volatile memory.

17. The one or more computer readable media of claim 15,

wherein the precoding matrix is selected from the set of matrices representable as

18. A method for precoding wireless transmissions on four antennas, comprising:

selecting, by a computing device based on an indicator from a user equipment, a precoding matrix from a set of matrices, wherein the set of matrices are calculated by using elements of

19. The method of claim 18,

wherein the precoding matrix is selected from the set of matrices representable as

20. The method of claim 18, further comprising:

receiving, by the computing device, the indicator from the user equipment, wherein the indicator specifies a particular precoding matrix to be selected by the computing device.

21. The method of claim 18, wherein the computing device comprises an evolved NodeB(eNB).

22. A method for enabling wireless transmissions on four antennas, comprising:

selecting, by a computing device, a precoding matrix, for precoding a rank-one wireless transmission on four antennas, from a set of matrices, wherein the set of matrices are calculated by using elements of

23. The method of claim 22, wherein the computing device is a user equipment.

24. The method of claim 22,

wherein the precoding matrix is selected from the set of matrices representable as