Rate matching for full duplex communications
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain an indication of at least one rate matching configuration. The UE may communicate in a full duplex communication mode, wherein communicating in the full duplex communication mode comprises rate matching based at least in part on the at least one rate matching configuration. Numerous other aspects are described.
1 . A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
obtain an indication of at least one rate matching configuration in which a first numerology of an uplink communication and a second numerology of a downlink communication are different; and
communicate in a full duplex communication mode, wherein the one or more processors, to communicate in the full duplex communication mode, are configured to rate match based at least in part on the at least one rate matching configuration.
2 . The UE of claim 1 , wherein the at least one rate matching configuration comprises at least one downlink configuration,
wherein the one or more processors, to communicate in the full duplex communication mode, are configured to transmit a physical uplink shared channel (PUSCH) communication, and wherein the one or more processors, to transmit the PUSCH communication, are configured to rate match around the at least one downlink configuration.
3 . The UE of claim 2 , wherein the at least one downlink configuration comprises a downlink rate match pattern.
4 . The UE of claim 3 , wherein the downlink rate match pattern comprises a control resource set (CORESET) configuration.
5 . The UE of claim 3 , wherein the one or more processors, to obtain the indication of the at least one downlink configuration, are configured to obtain a rate match pattern list that indicates the downlink rate match pattern.
6 . The UE of claim 5 , wherein the one or more processors, to obtain the rate match pattern list, are configured to receive a physical downlink shared channel (PDSCH) configuration, wherein the PDSCH configuration includes the rate match pattern list.
7 . The UE of claim 2 , wherein the at least one downlink configuration comprises at least one of a synchronization signal block configuration or a periodic reference signal configuration corresponding to a channel state information reference signal (CSI-RS).
8 . The UE of claim 7 , wherein the CSI-RS comprises at least one of a non-zero power CSI-RS or a zero-power CSI-RS.
9 . The UE of claim 2 , wherein the one or more processors, to obtain the indication of the at least one downlink configuration, are configured to receive a serving cell configuration that indicates a cell specific reference signal (CRS).
10 . The UE of claim 2 , wherein the indication of the at least one downlink configuration comprises an indicator field of a downlink control information (DCI) transmission that indicates a set of rate matching resources for rate matching dynamically scheduled PUSCH transmissions, wherein the PUSCH communication comprises a dynamically scheduled transmission.
11 . The UE of claim 10 , wherein the indicator field of the DCI transmission indicates at least one of a downlink resource or the second numerology of the downlink communication.
12 . The UE of claim 1 , wherein the at least one rate matching configuration comprises at least one uplink resource to be rate matched,
wherein the one or more processors, to communicate in the full duplex communication mode, are configured to receive a physical downlink shared channel (PDSCH) communication based at least in part on a rate matching operation associated with the at least one uplink resource.
13 . The UE of claim 12 , wherein the at least one uplink resource comprises at least one of:
a sounding reference signal resource set identifier,
a dedicated rate matching pattern, or
the first numerology of the uplink communication.
14 . The UE of claim 1 , wherein the one or more processors are further configured to:
determine a first physical protocol level priority associated with a communication to be communicated; and
determine a second physical protocol level priority associated with at least one resource indicated by the rate matching configuration,
wherein the rate matching comprises rate matching based at least in part on the first physical protocol level priority and the second physical protocol level priority.
15 . The UE of claim 1 , wherein the one or more processors are further configured to:
determine a rate matching pattern based at least in part on the rate matching configuration; and
blank out at least one of a tone adjacent to the rate matching pattern or a symbol adjacent to the rate matching pattern.
16 . The UE of claim 15 , wherein the one or more processors are further configured to obtain an indication of one or more blanking parameters, wherein the one or more processors, to blank out the at least one of the tone or the symbol, are configured to blank out the at least one of the tone or the symbol based at least in part on the indication of the one or more blanking parameters.
17 . The UE of claim 16 , wherein the one or more processors, to obtain the indication of the one or more blanking parameters, are configured to receive a radio resource control message or obtaining a numerology-specific blanking parameter table.
18 . A base station for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
obtain an indication of at least one rate matching configuration in which a first numerology of an uplink communication and a second numerology of a downlink communication are different; and
communicate in a full duplex communication mode, wherein the one or more processors, to communicate in the full duplex communication mode, are configured to rate match based at least in part on the at least one rate matching configuration.
19 . The base station of claim 18 , wherein the at least one rate matching configuration comprises at least one downlink configuration,
wherein the one or more processors, to communicate in the full duplex communication mode, are configured to receive a physical uplink shared channel (PUSCH) communication, and wherein the PUSCH communication is rate matched around the at least one downlink configuration.
20 . The base station of claim 19 , wherein the at least one downlink configuration comprises a downlink rate match pattern.
21 . The base station of claim 20 , wherein the downlink rate match pattern comprises a control resource set (CORESET) configuration.
22 . The base station of claim 21 , wherein the one or more processors, to obtain the indication of the at least one downlink configuration, are configured to obtain a rate match pattern list that indicates the downlink rate match pattern.
23 . The base station of claim 22 , wherein the one or more processors are further configured to transmit a physical downlink shared channel (PDSCH) configuration, wherein the PDSCH configuration includes the rate match pattern list.
24 . The base station of claim 19 , wherein the at least one downlink configuration comprises at least one of:
a synchronization signal block configuration,
a channel state information reference signal (CSI-RS), or
a parameter that indicates a cell specific reference signal (CRS).
25 . The base station of claim 19 , wherein the indication of the at least one downlink configuration comprises an indicator field of a downlink control information (DCI) transmission that indicates a set of rate matching resources for rate matching dynamically scheduled PUSCH transmissions, wherein the PUSCH communication comprises a dynamically scheduled transmission, wherein the indicator field of the DCI transmission indicates at least one of a downlink resource or the second numerology of the downlink communication.
26 . The base station of claim 18 , wherein the at least one rate matching configuration comprises at least one uplink resource to be rate matched,
wherein the one or more processors, to communicate in the full duplex communication mode, are configured to transmit a physical downlink shared channel (PDSCH) communication based at least in part on a rate matching operation associated with the at least one uplink resource.
27 . The base station of claim 26 , wherein the at least one uplink resource comprises at least one of:
a sounding reference signal resource set identifier,
a dedicated rate matching pattern, or
the first numerology of the uplink communication.
28 . The base station of claim 18 , wherein the one or more processors are further configured to transmit an indication of one or more blanking parameters.
29 . A method of wireless communication performed by a user equipment (UE), comprising:
obtaining an indication of at least one rate matching configuration in which a first numerology of an uplink communication and a second numerology of a downlink communication are different; and
communicating in a full duplex communication mode, wherein communicating in the full duplex communication mode comprises rate matching based at least in part on the at least one rate matching configuration.
30 . A method of wireless communication performed by a base station, comprising:
obtaining an indication of at least one rate matching configuration in which a first numerology of an uplink communication and a second numerology of a downlink communication are different; and
communicating in a full duplex communication mode, wherein communicating in the full duplex communication mode comprises rate matching based at least in part on the at least one rate matching configuration.