TECHNIQUES AND APPARATUSES FOR MULTIPLEXING SCHEMES FOR MILLIMETER WAVE DOWNLINK SINGLE CARRIER WAVEFORMS

• US 20190020527A1
• Filed: 07/09/2018
• Published: 01/17/2019
• Est. Priority Date: 07/12/2017
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: LEI, Jing, SUN, Jing, KADOUS, Tamer
• Granted Patent: US 10,560,304 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 10/90 Non-optical transmission systems, e.g. transmission systems employing non-photonic corpuscular radiation
• CPC Class Codes: H04B 7/0408 using two or more beams, i.e. beam diversity
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04B 7/10 Polarisation diversity; Directional diversity
• CPC Class Codes: H04J 14/06 Polarisation multiplex systems
• CPC Class Codes: H04J 3/02 Details electronic switching or gating H03K17/00
• CPC Class Codes: H04L 27/2636 with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
• CPC Class Codes: H04L 27/3488 Multiresolution systems
• CPC Class Codes: H04L 27/361 Modulation using a single or unspecified number of carriers, e.g. with separate stages of phase and amplitude modulation
• CPC Class Codes: H04L 27/362 Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated H04L27/366 takes precedence
• CPC Class Codes: H04L 27/38 Demodulator circuits; Receiver circuits
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams

Abstract

Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.

Claims

1. A method of wireless communication performed by a transmitter device, comprising:

receiving a first data stream and a second data stream;

modulating the first data stream to create a first modulated data stream;

modulating the second data stream to create a second modulated data stream; and

multiplexing the first modulated data stream and the second modulated data stream into a symbol using in-phase and quadrature carriers.

2. The method of claim 1, wherein the transmitter device is further configured to add a first signature to the first data stream and a second signature to the second data stream,

wherein the first signature and the second signature are added for identification of a destination of the first data stream and the second data stream by at least one recipient device.

3. The method of claim 2, wherein the first signature and the second signature are added after channel coding of the first data stream and the second data stream.

4. The method of claim 1, wherein the modulation is amplitude modulation.

5. The method of claim 1, wherein the first data stream is associated with a first recipient device and the second data stream is associated with a second recipient device.

6. The method of claim 1, wherein the first data stream is associated with a first recipient device and a second recipient device,

wherein time division multiplexing is used to multiplex symbols associated with the first recipient device and the second recipient device for transmission.

7. A method of wireless communication performed by a recipient device, comprising:

receiving a signal having an in-phase component and a quadrature component;

identifying at least one symbol pertinent to the recipient device,

wherein the at least one symbol is identified from at least one of the in-phase component or the quadrature component; and

demodulating the at least one symbol.

8. The method of claim 7, wherein the at least one symbol is identified based at least in part on the at least one symbol being received on the one of the in-phase component or the quadrature component.

9. The method of claim 7, wherein the at least one symbol is identified based at least in part on a signature, specific to the recipient device, associated with the at least one symbol.

10. The method of claim 7, wherein the at least one symbol is identified from a plurality of symbols on the one of the in-phase component or the quadrature component,

wherein the at least one symbol is time division multiplexed with the plurality of symbols.

11. A transmitter device for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to;

receive a first data stream and a second data stream;

modulate the first data stream to create a first modulated data stream;

modulate the second data stream to create a second modulated data stream; and

multiplex the first modulated data stream and the second modulated data stream into a symbol using in-phase and quadrature carriers.

12. The transmitter device of claim 11, wherein the transmitter device is further configured to add a first signature to the first data stream and a second signature to the second data stream,

wherein the first signature and the second signature are added for identification of a destination of the first data stream and the second data stream by at least one recipient device.

13. The transmitter device of claim 12, wherein the first signature and the second signature are added after channel coding of the first data stream and the second data stream.

14. The transmitter device of claim 11, wherein the modulation is amplitude modulation.

15. The transmitter device of claim 11, wherein the first data stream is associated with a first recipient device and the second data stream is associated with a second recipient device.

16. The transmitter device of claim 11, wherein the first data stream is associated with a first recipient device and a second recipient device,

wherein time division multiplexing is used to multiplex symbols associated with the first recipient device and the second recipient device for transmission.

17. A recipient device for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to;

receive a signal having an in-phase component and a quadrature component;

identify at least one symbol pertinent to the recipient device,

wherein the at least one symbol is identified from at least one of the in-phase component or the quadrature component; and

demodulate the at least one symbol.

18. The recipient device of claim 17, wherein the at least one symbol is identified based at least in part on the at least one symbol being received on the one of the in-phase component or the quadrature component.

19. The recipient device of claim 17, wherein the at least one symbol is identified based at least in part on a signature, specific to the recipient device, associated with the at least one symbol.

20. The recipient device of claim 17, wherein the at least one symbol is identified from a plurality of symbols on the one of the in-phase component or the quadrature component,

wherein the at least one symbol is time division multiplexed with the plurality of symbols.

21. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

one or more instructions that, when executed by one or more processors of a transmitter device, cause the one or more processors to;

receive a first data stream and a second data stream;

modulate the first data stream to create a first modulated data stream;

modulate the second data stream to create a second modulated data stream; and

multiplex the first modulated data stream and the second modulated data stream into a symbol using in-phase and quadrature carriers.

22. The non-transitory computer-readable medium of claim 21, wherein the one or more instructions, when executed by the one or more processors further cause the one or more processors to add a first signature to the first data stream and a second signature to the second data stream,

wherein the first signature and the second signature are added for identification of a destination of the first data stream and the second data stream by at least one recipient device.

23. The non-transitory computer-readable medium of claim 22, wherein the first signature and the second signature are added after channel coding of the first data stream and the second data stream.

24. The non-transitory computer-readable medium of claim 21, wherein the modulation is amplitude modulation.

25. The non-transitory computer-readable medium of claim 21, wherein the first data stream is associated with a first recipient device and the second data stream is associated with a second recipient device.

26. The non-transitory computer-readable medium of claim 21, wherein the first data stream is associated with a first recipient device and a second recipient device,

wherein time division multiplexing is used to multiplex symbols associated with the first recipient device and the second recipient device for transmission.

27. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

one or more instructions that, when executed by one or more processors of a recipient device, cause the one or more processors to;

receive a signal having an in-phase component and a quadrature component;

identify at least one symbol pertinent to the recipient device,

wherein the at least one symbol is identified from at least one of the in-phase component or the quadrature component; and

demodulate the at least one symbol.

28. The non-transitory computer-readable medium of claim 27, wherein the at least one symbol is identified based at least in part on the at least one symbol being received on the one of the in-phase component or the quadrature component.

29. The non-transitory computer-readable medium of claim 27, wherein the at least one symbol is identified based at least in part on a signature, specific to the recipient device, associated with the at least one symbol.

30. The non-transitory computer-readable medium of claim 27, wherein the at least one symbol is identified from a plurality of symbols on the one of the in-phase component or the quadrature component,

wherein the at least one symbol is time division multiplexed with the plurality of symbols.

31. An apparatus for wireless communication, comprising:

means for receiving a first data stream and a second data stream;

means for modulating the first data stream to create a first modulated data stream;

means for modulating the second data stream to create a second modulated data stream; and

means for multiplexing the first modulated data stream and the second modulated data stream into a symbol using in-phase and quadrature carriers.

32. The apparatus of claim 31, further comprising means for adding a first signature to the first data stream and a second signature to the second data stream,

wherein the first signature and the second signature are added for identification of a destination of the first data stream and the second data stream by at least one recipient device.

33. The apparatus of claim 32, wherein the first signature and the second signature are added after channel coding of the first data stream and the second data stream.

34. The apparatus of claim 31, wherein the modulation is amplitude modulation.

35. The apparatus of claim 31, wherein the first data stream is associated with a first recipient device and the second data stream is associated with a second recipient device.

36. The apparatus of claim 31, wherein the first data stream is associated with a first recipient device and a second recipient device,

wherein time division multiplexing is used to multiplex symbols associated with the first recipient device and the second recipient device for transmission.

37. An apparatus for wireless communication, comprising:

means for receiving a signal having an in-phase component and a quadrature component;

means for identifying at least one symbol pertinent to the apparatus,

wherein the at least one symbol is identified from at least one of the in-phase component or the quadrature component; and

means for demodulating the at least one symbol.

38. The apparatus of claim 37, wherein the at least one symbol is identified based at least in part on the at least one symbol being received on the one of the in-phase component or the quadrature component.

39. The apparatus of claim 37, wherein the at least one symbol is identified based at least in part on a signature, specific to the apparatus, associated with the at least one symbol.

40. The apparatus of claim 37, wherein the at least one symbol is identified from a plurality of symbols on the one of the in-phase component or the quadrature component,

wherein the at least one symbol is time division multiplexed with the plurality of symbols.