Physical uplink shared channel (PUSCH) design with power spectral density (PSD) parameters in new radio-spectrum sharing (NR-SS)
Wireless communications systems and methods related to improving multiplexing capability in a frequency spectrum are provided. A first wireless communication device obtains a configuration for communicating a communication signal in a frequency spectrum. The configuration is based on at least a number of wireless communication devices scheduled to communicate in a time period. The configuration indicates resources in the frequency spectrum over the time period and a frequency distribution mode of the resources. The first wireless communication device communicates, with a second wireless communication device, the communication signal in the frequency spectrum during the time period based on the configuration.
1. A method of wireless communication performed at a user equipment, the method comprising:
receiving a configuration for communicating a communication signal in a frequency spectrum, wherein the configuration is based on at least a number of wireless communication devices scheduled to communicate in a time period and indicates resources in the frequency spectrum over the time period, wherein the indicated resources comprise at least one subset of mini-resource blocks (mini-RBs) of one or more RBs, the at least one subset of mini-RBs being less than all mini-RBs of the one or more RBs, wherein each RB of the one or more RBs comprises a first number of subcarriers, and wherein each mini-RB comprises a second number of subcarriers that is less than the first number of subcarriers; and
communicating the communication signal in the frequency spectrum during the time period using the indicated resources based on the configuration, wherein a transport block size (TBS) of the communication signal is based on a number of the mini-RBs in the indicated resources.
2. The method of claim 1 , wherein the TBS of the communication signal is further based on a number of subcarriers in each mini-RB of the subset of mini-RBs.
3. The method of claim 2 , wherein the TBS of the communication signal is further based on at least one of a number of transmission layers, a modulation order, or a coding rate.
4. The method of claim 1 , wherein the configuration indicates a spreading factor, and wherein the communicating the communication signal is based on the spreading factor.
5. The method of claim 4 , wherein the spreading factor is a frequency domain spreading factor.
6. The method of claim 4 , wherein the spreading factor is a time domain spreading factor.
7. The method of claim 4 , wherein the TBS of the communication signal is further based on a length of the spreading factor.
8. The method of claim 1 , wherein the configuration is further based on a power spectral density (PSD) parameter of the frequency spectrum, and wherein the scheduled wireless communication devices comprise the user equipment.
9. The method of claim 1 , wherein the configuration is further based on at least one of:
a number of transmission layers scheduled for each of the scheduled wireless communication devices,
a waveform of the communication signal, or
a subcarrier spacing.
10. The method of claim 1 , wherein the communicating comprises:
transmitting a physical uplink shared channel (PUSCH) signal using the resources.
11. The method of claim 1 , further comprising:
communicating a reference signal during one or more symbols within the time period,
wherein the communication signal is communicated during one or more other symbols within the time period.
12. The method of claim 11 , wherein the reference signal is communicated using at least one subcarrier outside of the indicated resources.
13. The method of claim 11 , wherein the one or more RBs comprise a first RB and a second RB, wherein the resources comprise subcarriers within each of the first RB and the second RB, and wherein the reference signal is communicated based on a scrambling code that is based on at least a frequency location of the subcarriers.
14. The method of claim 1 , wherein the communicating comprises:
receiving the communication signal.
15. The method of claim 1 , wherein the communicating comprises:
transmitting the communication signal.
16. An apparatus, comprising:
a processor configured to obtain a configuration for communicating a communication signal in a frequency spectrum, wherein the configuration is based on at least a number of wireless communication devices scheduled to communicate in a time period and indicates resources in the frequency spectrum over the time period, wherein the indicated resources comprise at least one subset of mini-resource blocks (mini-RBs) of one or more RBs, the at least one subset of mini-RBs being less than all mini-RBs of the one or more RBs, wherein each RB of the one or more RBs comprises a first number of subcarriers, and wherein each mini-RB comprises a second number of subcarriers that is less than the first number of subcarriers; and
a transceiver in communication with the processor, the transceiver configured to:
receive the configuration; and
communicate the communication signal in the frequency spectrum during the time period using the indicated resources based on the configuration, wherein a transport block size (TBS) of the communication signal is based on a number of the mini-RBs in the indicated resources.
17. The apparatus of claim 16 , wherein the TBS of the communication signal is further based on a number of subcarriers in each mini-RB of the subset of mini-RBs.
18. The apparatus of claim 17 , wherein the TBS of the communication signal is further based on at least one of a number of transmission layers, a modulation order, or a coding rate.
19. The apparatus of claim 16 , wherein the configuration indicates a spreading factor, and wherein the communication signal is based on the spreading factor.
20. The apparatus of claim 19 , wherein the spreading factor is a frequency domain spreading factor.
21. The apparatus of claim 19 , wherein the spreading factor is a time domain spreading factor.
22. The apparatus of claim 19 , wherein the TBS of the communication signal is further based on a length of the spreading factor.
23. The apparatus of claim 16 , wherein the configuration is further based on a power spectral density (PSD) parameter of the frequency spectrum, and wherein the scheduled wireless communication devices comprise the apparatus.
24. The apparatus of claim 16 , wherein the configuration is further based on at least one of:
a number of transmission layers scheduled for each of the scheduled wireless communication devices,
a waveform of the communication signal, or
a subcarrier spacing.
25. The apparatus of claim 16 , wherein the transceiver configured to communicate the communication signal comprises the transceiver configured to:
transmit a physical uplink shared channel (PUSCH) signal using the resources.
26. The apparatus of claim 16 , wherein the transceiver is further configured to:
communicate a reference signal during one or more symbols within the time period,
wherein the transceiver is configured to communicate the communication signal during one or more other symbols within the time period.
27. The apparatus of claim 26 , wherein the transceiver is configured to communicate the reference signal using at least one subcarrier outside of the indicated resources.
28. The apparatus of claim 26 , wherein the one or more RBs comprise a first RB and a second RB, wherein the resources comprise subcarriers within each of the first RB and the second RB, and wherein the reference signal is communicated based on a scrambling code that is based on at least a frequency location of the subcarriers.
29. A method of wireless communication performed at a network operating entity, the method comprising:
transmitting a configuration for communicating a communication signal in a frequency spectrum, wherein the configuration is based on at least a number of wireless communication devices scheduled to communicate in a time period and indicates resources in the frequency spectrum over the time period, wherein the indicated resources comprise at least one subset of mini-resource blocks (mini-RBs) of one or more RBs, the at least one subset of mini-RBs being less than all mini-RBs of the one or more RBs, wherein each RB of the one or more RBs comprises a first number of subcarriers, and wherein each mini-RB comprises a second number of subcarriers that is less than the first number of subcarriers; and
communicating the communication signal in the frequency spectrum during the time period using the indicated resources based on the configuration, wherein a transport block size (TBS) of the communication signal is based on a number of the mini-RBs in the indicated resources.
30. A network operating entity, comprising:
a processor configured to obtain a configuration for communicating a communication signal in a frequency spectrum, wherein the configuration is based on at least a number of wireless communication devices scheduled to communicate in a time period and indicates resources in the frequency spectrum over the time period, wherein the indicated resources comprise at least one subset of mini-resource blocks (mini-RBs) of one or more RBs, the at least one subset of mini-RBs being less than all mini-RBs of the one or more RBs, wherein each RB of the one or more RBs comprises a first number of subcarriers, and wherein each mini-RB comprises a second number of subcarriers that is less than the first number of subcarriers; and
a transceiver in communication with the processor, the transceiver configured to:
transmit the configuration; and
communicate the communication signal in the frequency spectrum during the time period using the indicated resources based on the configuration, wherein a transport block size (TBS) of the communication signal is based on a number of the mini-RBs in the indicated resources.