Methods, system, user equipment, and apparatus for uplink resource muting operation in wireless communication

One or more processors for muting resource elements used for wireless communications and configured to, when executing instructions stored in a memory, perform operations comprising:

• obtaining, by the one or more processors, configuration data that indicates a frequency density of muted resource blocks (RBs) in a frequency domain, the frequency density of muted RBs in the frequency domain representing a ratio of a) a number of the muted RBs repeated at regular intervals in the frequency domain for a physical uplink shared channel (PUSCH) transmission to b) a number of RBs to be allocated for the PUSCH transmission;
• identifying, by the one or more processors and based on a value of an antenna ports information element in downlink control information (DCI) that schedules the PUSCH transmission, a group of resource elements within the muted RBs;
• determining, by the one or more processors and based on the frequency density of the muted RBs in the frequency domain and the identified group of resource elements, a muted resource pattern (MRP) within-resource blocks the RBs of the scheduled PUSCH transmission;
• and
• causing, by the one or more processors, a transmission of the RBs of the scheduled PUSCH transmission without transmission on the identified group of resource elements of the determined MRP.

One or more non-transitory computer-readable media storing instructions that, when executed by one or more computers, cause the one or more computers to perform operations for muting resource elements used for wireless communications, the operations comprising:

• obtaining configuration data that indicates a frequency density of muted resource blocks (RBs) in a frequency domain, the frequency density of muted RBs in the frequency domain representing a ratio of a) a number of the muted RBs repeated at regular intervals in the frequency domain for a physical uplink shared channel (PUSCH) transmission to b) a number of RBs to be allocated for the PUSCH transmission;
• identifying, based on a value of an antenna ports information element in downlink control information (DCI) that schedules the PUSCH transmission, a group of resource elements within the muted RBs;
• determining, based on the frequency density of the muted RBs in the frequency domain and the identified group of resource elements, a muted resource pattern (MRP) within the RBs of the scheduled PUSCH transmission;
• and
• causing a transmission of the RBs of the scheduled PUSCH transmission without transmission on the identified group of resource elements of the determined MRP.