Techniques and apparatuses for multiplexing schemes for millimeter wave downlink single carrier waveforms
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.
1. A method of wireless communication performed by a transmitter device, comprising:
performing a modulation technique with regard to at least two data streams to generate at least two modulated data streams corresponding to the at least two data streams;
applying respective polarization patterns to the at least two modulated data streams; and
transmitting, as a multiplexed signal after the respective polarization patterns are applied, the at least two modulated data streams, wherein a particular data stream, of the at least two data streams, includes multiplexed data for multiple, different recipient devices.
2. The method of claim 1 , wherein the modulation technique is a quadrature amplitude modulation technique.
3. The method of claim 1 , wherein the multiplexed signal is multiplexed based at least in part on at least one of a superposition quadrature amplitude modulation technique using layered bit mapping or an in-phase/quadrature multiplexing technique.
4. The method of claim 1 , wherein the respective polarization patterns are applied using respective polarized antennas of the transmitter device.
5. The method of claim 1 , wherein relevant data is extracted by a recipient device, of the multiple, different recipient devices, from the multiplexed data.
6. A method of wireless communication performed by a recipient device, comprising:
receiving a multiplexed signal including at least two modulated data streams associated with respective polarization patterns,
wherein the respective polarization patterns are applied using respective polarized antennas of a transmitter device; and
obtaining data from a relevant data stream of the at least two modulated data streams,
wherein the relevant data stream includes multiplexed data for multiple, different recipient devices including the recipient device, and
wherein at least one other data stream of the at least two modulated data streams is filtered based at least in part on at least one of the respective polarization patterns.
7. The method of claim 6 , wherein the at least two modulated data streams are modulated using quadrature amplitude modulation.
8. The method of claim 6 , wherein the recipient device is configured to extract the relevant data stream from the multiplexed data.
9. The method of claim 8 , wherein the multiplexed data is multiplexed based at least in part on at least one of a superposition quadrature amplitude modulation technique using layered bit mapping or an in-phase/quadrature multiplexing technique.
10. 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:
perform a modulation technique with regard to at least two data streams to generate at least two modulated data streams corresponding to the at least two data streams;
apply respective polarization patterns to the at least two modulated data streams; and
transmit, as a multiplexed signal after the respective polarization patterns are applied, the at least two modulated data streams, wherein a particular data stream, of the at least two data streams, includes multiplexed data for multiple, different recipient devices.
11. The transmitter device of claim 10 , wherein the modulation technique is a quadrature amplitude modulation technique.
12. The transmitter device of claim 10 , wherein the multiplexed signal is multiplexed based at least in part on at least one of a superposition quadrature amplitude modulation technique using layered bit mapping or an in-phase/quadrature multiplexing technique.
13. The transmitter device of claim 10 , wherein the respective polarization patterns are applied using respective polarized antennas of the transmitter device.
14. The transmitter device of claim 10 , wherein relevant data is extracted by a recipient device, of the multiple, different recipient devices, from the multiplexed data.
15. 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 multiplexed signal including at least two modulated data streams associated with respective polarization patterns,
wherein the respective polarization patterns are applied using respective polarized antennas of a transmitter device; and
obtain data from a relevant data stream of the at least two modulated data streams,
wherein the relevant data stream includes multiplexed data for multiple, different recipient devices including the recipient device, and
wherein at least one other data stream of the at least two modulated data streams is filtered based at least in part on at least one of the respective polarization patterns.
16. The recipient device of claim 15 , wherein the at least two modulated data streams are modulated using quadrature amplitude modulation.
17. The recipient device of claim 15 , wherein the recipient device is configured to extract the relevant data stream from the multiplexed data.
18. The recipient device of claim 17 , wherein the multiplexed data is multiplexed based at least in part on at least one of a superposition quadrature amplitude modulation technique using layered bit mapping or an in-phase/quadrature multiplexing technique.
19. 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:
perform a modulation technique with regard to at least two data streams to generate at least two modulated data streams corresponding to the at least two data streams;
apply respective polarization patterns to the at least two modulated data streams; and
transmit, as a multiplexed signal after the respective polarization patterns are applied, the at least two modulated data streams, wherein a particular data stream, of the at least two data streams, includes multiplexed data for multiple, different recipient devices.
20. The non-transitory computer-readable medium of claim 19 , wherein the modulation technique is a quadrature amplitude modulation technique.
21. The non-transitory computer-readable medium of claim 19 , wherein the multiplexed signal is multiplexed based at least in part on at least one of a superposition quadrature amplitude modulation technique using layered bit mapping or an in-phase/quadrature multiplexing technique.
22. The non-transitory computer-readable medium of claim 19 , wherein the respective polarization patterns are applied using respective polarized antennas of the transmitter device.
23. The non-transitory computer-readable medium of claim 19 , wherein relevant data is extracted by a recipient device, of the multiple, different recipient devices, from the multiplexed data.
24. 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 multiplexed signal including at least two modulated data streams associated with respective polarization patterns,
wherein the respective polarization patterns are applied using respective polarized antennas of a transmitter device; and
obtain data from a relevant data stream of the at least two modulated data streams,
wherein the relevant data stream includes multiplexed data for multiple, different recipient devices including the recipient device, and
wherein at least one other data stream of the at least two modulated data streams is filtered based at least in part on at least one of the respective polarization patterns.
25. The non-transitory computer-readable medium of claim 24 , wherein the at least two modulated data streams are modulated using quadrature amplitude modulation.
26. The non-transitory computer-readable medium of claim 24 , wherein the recipient device is configured to extract the relevant data stream from the multiplexed data.
27. The non-transitory computer-readable medium of claim 26 , wherein the multiplexed data is multiplexed based at least in part on at least one of a superposition quadrature amplitude modulation technique using layered bit mapping or an in-phase/quadrature multiplexing technique.
28. An apparatus for wireless communication, comprising:
means for performing a modulation technique with regard to at least two data streams to generate at least two modulated data streams corresponding to the at least two data streams;
means for applying respective polarization patterns to the at least two modulated data streams; and
means for transmitting, as a multiplexed signal after the respective polarization patterns are applied, the at least two modulated data streams, wherein a particular data stream, of the at least two data streams, includes multiplexed data for multiple, different recipient devices.
29. The apparatus of claim 28 , wherein the modulation technique is a quadrature amplitude modulation technique.
30. The apparatus of claim 28 , wherein the multiplexed signal is multiplexed based at least in part on at least one of a superposition quadrature amplitude modulation technique using layered bit mapping or an in-phase/quadrature multiplexing technique.
31. The apparatus of claim 28 , wherein the respective polarization patterns are applied using respective polarized antennas of the apparatus.
32. The apparatus of claim 28 , wherein relevant data is extracted by a recipient device, of the multiple, different recipient devices, from the multiplexed data.
33. An apparatus for wireless communication, comprising:
means for receiving a multiplexed signal including at least two modulated data streams associated with respective polarization patterns,
wherein the respective polarization patterns are applied using respective polarized antennas of a transmitter device; and
means for obtaining data from a relevant data stream of the at least two modulated data streams,
wherein the relevant data stream includes multiplexed data for multiple, different apparatuses including the apparatus, and
wherein at least one other data stream of the at least two modulated data streams is filtered based at least in part on at least one of the respective polarization patterns.
34. The apparatus of claim 33 , wherein the at least two modulated data streams are modulated using quadrature amplitude modulation.
35. The apparatus of claim 33 , wherein the apparatus is configured to extract the relevant data stream from the multiplexed data.
36. The apparatus of claim 35 , wherein the multiplexed data is multiplexed based at least in part on at least one of a superposition quadrature amplitude modulation technique using layered bit mapping or an in-phase/quadrature multiplexing technique.