Rate matching for new radio (NR) physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH)
Certain aspects of the present disclosure relate to methods and apparatus relating to rate matching for new radio (NR) physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH). In certain aspects, a method includes receiving a rate matching resource (RMR) configuration from a serving cell. The method also includes identifying one or more first resource elements (REs) to be rate matched around at least in part based on a transmission numerology associated with the RMR configuration, wherein the one or more first REs are used for reference signal (RS) transmission in the serving cell or a neighboring cell. The method further includes mapping a physical downlink shared channel (PDSCH) to one or more second REs not including the first REs.
1. A method of wireless communication by a user equipment (UE), the method comprising:
receiving a rate matching resource (RMR) configuration from a serving cell;
identifying one or more first resource elements (REs) to be rate matched around at least in part based on a transmission numerology associated with the RMR configuration, wherein the one or more first REs are used for reference signal (RS) transmission in a neighboring cell; and
mapping a physical downlink shared channel (PDSCH) to one or more second REs not including the first REs.
2. The method of claim 1 , wherein the transmission numerology associated with the RMR configuration received from the serving cell is identical to a transmission numerology of the neighboring cell.
3. The method of claim 1 , wherein the transmission numerology associated with the RMR configuration received from the serving cell is different than a transmission numerology of the neighboring cell.
4. The method of claim 3 , wherein a subcarrier spacing corresponding to the transmission numerology associated with the RMR configuration received from the serving cell is larger than a subcarrier spacing corresponding to the transmission numerology of the neighboring cell.
5. The method of claim 3 , wherein a subcarrier spacing corresponding to the transmission numerology associated with the RMR configuration received from the serving cell is smaller than a subcarrier spacing corresponding to the transmission numerology of the neighboring cell.
6. The method of claim 1 , wherein the RMR includes zero power channel state information reference signals (ZP CSI-RS).
7. An apparatus, comprising:
a non-transitory memory comprising executable instructions; and
a processor in data communication with the memory and configured to execute the instructions to cause the apparatus to:
receive a rate matching resource (RMR) configuration from a serving cell;
identify one or more first resource elements (REs) to be rate matched around at least in part based on a transmission numerology associated with the RMR configuration, wherein the one or more first REs are used for reference signal (RS) transmission in a neighboring cell; and
map a physical downlink shared channel (PDSCH) to one or more second REs not including the first REs.
8. The apparatus of claim 7 , wherein the transmission numerology associated with the RMR configuration received from the serving cell is identical to a transmission numerology of the neighboring cell.
9. The apparatus of claim 7 , wherein the transmission numerology associated with the RMR configuration received from the serving cell is different than a transmission numerology of the neighboring cell.
10. The apparatus of claim 9 , wherein a subcarrier spacing corresponding to the transmission numerology associated with the RMR configuration received from the serving cell is larger than a subcarrier spacing corresponding to the transmission numerology of the neighboring cell.
11. The apparatus of claim 9 , wherein a subcarrier spacing corresponding to the transmission numerology associated with the RMR configuration received from the serving cell is smaller than a subcarrier spacing corresponding to the transmission numerology of the neighboring cell.
12. The apparatus of claim 7 , wherein the RMR includes zero power channel state information reference signals (ZP CSI-RS).
13. An apparatus for wireless communications, the apparatus comprising:
means for receiving a rate matching resource (RMR) configuration from a serving cell;
means for identifying one or more first resource elements (REs) to be rate matched around at least in part based on a transmission numerology associated with the RMR configuration, wherein the one or more first REs are used for reference signal (RS) transmission in a neighboring cell; and
means for mapping a physical downlink shared channel (PDSCH) to one or more second REs not including the first REs.
14. The apparatus of claim 13 , wherein the transmission numerology associated with the RMR configuration received from the serving cell is identical to a transmission numerology of the neighboring cell.
15. The apparatus of claim 13 , wherein the transmission numerology associated with the RMR configuration received from the serving cell is different than a transmission numerology of the neighboring cell.
16. The apparatus of claim 15 , wherein a subcarrier spacing corresponding to the transmission numerology associated with the RMR configuration received from the serving cell is larger than a subcarrier spacing corresponding to the transmission numerology of the neighboring cell.
17. The apparatus of claim 15 , wherein a subcarrier spacing corresponding to the transmission numerology associated with the RMR configuration received from the serving cell is smaller than a subcarrier spacing corresponding to the transmission numerology of the neighboring cell.
18. The apparatus of claim 13 , wherein the RMR includes zero power channel state information reference signals (ZP CSI-RS).
19. A non-transitory computer readable medium having instructions stored thereon that, when executed by a user equipment (UE), cause the UE to perform a method comprising:
receiving a rate matching resource (RMR) configuration from a serving cell;
identifying one or more first resource elements (REs) to be rate matched around at least in part based on a transmission numerology associated with the RMR configuration, wherein the one or more first REs are used for reference signal (RS) transmission in a neighboring cell; and
mapping a physical downlink shared channel (PDSCH) to one or more second REs not including the first REs.
20. The non-transitory computer readable medium of claim 19 , wherein the transmission numerology associated with the RMR configuration received from the serving cell is identical to a transmission numerology of the neighboring cell.
21. The non-transitory computer readable medium of claim 19 , wherein the transmission numerology associated with the RMR configuration received from the serving cell is different than a transmission numerology of the neighboring cell.
22. The non-transitory computer readable medium of claim 21 , wherein a subcarrier spacing corresponding to the transmission numerology associated with the RMR configuration received from the serving cell is larger than a subcarrier spacing corresponding to the transmission numerology of the neighboring cell.
23. The non-transitory computer readable medium of claim 21 , wherein a subcarrier spacing corresponding to the transmission numerology associated with the RMR configuration received from the serving cell is smaller than a subcarrier spacing corresponding to the transmission numerology of the neighboring cell.
24. The non-transitory computer readable medium of claim 19 , wherein the RMR includes zero power channel state information reference signals (ZP CSI-RS).