This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for demodulation reference signal (DMRS) and cell specific reference signal (CRS) collision avoidance procedures for wireless communication. Conventional networks and devices may be unable to perform DMRS shifting in some modes. For example, when considering two transmissions of multiple TRP modes, if a DMRS symbol for one transmission is shifted due to a collision with a CRS pattern, the alignment of the transmissions may be altered. If DMRS symbols of the transmissions are not aligned, interference or decoding failure may occur. The disclosure enables procedures for performing DMRS shifting in multiple TRP modes. For example, the DMRS symbols of both transmissions may be shifted responsive to determining an overlap for one transmission. Such shifting may enable the alignment of the DMRS locations for both transmissions to enable decoding of the transmissions.

This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for demodulation reference signal (DMRS) and cell specific reference signal (CRS) collision avoidance procedures for wireless communication. Conventional networks and devices may be unable to perform DMRS shifting in some modes. For example, when considering two transmissions of multiple TRP modes, if a DMRS symbol for one transmission is shifted due to a collision with a CRS pattern, the alignment of the transmissions may be altered. If DMRS symbols of the transmissions are not aligned, interference or decoding failure may occur. The disclosure enables procedures for performing DMRS shifting in multiple TRP modes. For example, the DMRS symbols of both transmissions may be shifted responsive to determining an overlap for one transmission. Such shifting may enable the alignment of the DMRS locations for both transmissions to enable decoding of the transmissions.

System, methods, and computer-readable media for validating and committing a shared O-RU configuration via a shared O-RU Operator. The shared O-RU Operator validates a partitioned configuration received from a tenant operator, with the ability to indicate to the tenant operator that the partitioned configuration is conformant to agreed-upon sharing rules and then commits the shared configuration to the shared O-RU. The shared O-RU operator shares the outcome of the commit operation to the tenant operator via defined operational-data that can be read by the tenant operator. A single radio in O-RAN is shared by multiple different operators and enables a neutral host to deploy a radio unit and then have that attached to different operators networks.

System, methods, and computer-readable media for validating and committing a shared O-RU configuration via a shared O-RU Operator. The shared O-RU Operator validates a partitioned configuration received from a tenant operator, with the ability to indicate to the tenant operator that the partitioned configuration is conformant to agreed-upon sharing rules and then commits the shared configuration to the shared O-RU. The shared O-RU operator shares the outcome of the commit operation to the tenant operator via defined operational-data that can be read by the tenant operator. A single radio in O-RAN is shared by multiple different operators and enables a neutral host to deploy a radio unit and then have that attached to different operators networks.

A technology for a terminal apparatus, a base station apparatus, a communication method, and an integrated circuit which enable efficient communication with reduced complexity of protocol processing is provided. A terminal apparatus for communicating with a base station apparatus receives an RRC connection reconfiguration request message including a Data Radio Bearer (DRB) configuration from the base station apparatus, the DRB configuration includes an SDAP configuration, the SDAP configuration includes information indicating whether an SDAP function is to be enabled or disabled, in a case that the SDAP function is enabled, the SDAP function is configured, and in a case that the SDAP function is disabled, the SDAP function is not configured.

A technology for a terminal apparatus, a base station apparatus, a communication method, and an integrated circuit which enable efficient communication with reduced complexity of protocol processing is provided. A terminal apparatus for communicating with a base station apparatus receives an RRC connection reconfiguration request message including a Data Radio Bearer (DRB) configuration from the base station apparatus, the DRB configuration includes an SDAP configuration, the SDAP configuration includes information indicating whether an SDAP function is to be enabled or disabled, in a case that the SDAP function is enabled, the SDAP function is configured, and in a case that the SDAP function is disabled, the SDAP function is not configured.

A terminal is disclosed including a receiver that receives a signal of a downlink shared channel; and a transmitter that transmits Acknowledgement (ACK)/Negative Acknowledgement (NACK) information for the signal of the downlink shared channel using an uplink control channel in a time resource included in a plurality of time resource candidates. In other aspects, a radio communication method and a base station are also disclosed.

A terminal is disclosed including a receiver that receives a signal of a downlink shared channel; and a transmitter that transmits Acknowledgement (ACK)/Negative Acknowledgement (NACK) information for the signal of the downlink shared channel using an uplink control channel in a time resource included in a plurality of time resource candidates. In other aspects, a radio communication method and a base station are also disclosed.

A method of multiplexing logical channels (LCHs) in configured grants (CG) to enable faster transmission of high priority data in 5G New Radio-Unlicensed (NR-U) is proposed. Two options of imposing a CAPC-based restriction rule on multiplexing a low priority LCH with a high priority LCH are provided. In a first option, a threshold CAPC value is configured via RRC signaling. Data belonging to LCH having a priority lower than the CAPC threshold is not allowed to be multiplexed with data belonging to LCH having a priority higher than the CAPC threshold. In a second option, each CAPC has a flag indicating if the CPAC can have reduced priority via RRC signaling. If the flag is set for the CAPC, then data belonging to LCH assigned with the CAPC cannot be multiplexed with data belonging to lower priority LCHs.

A method of multiplexing logical channels (LCHs) in configured grants (CG) to enable faster transmission of high priority data in 5G New Radio-Unlicensed (NR-U) is proposed. Two options of imposing a CAPC-based restriction rule on multiplexing a low priority LCH with a high priority LCH are provided. In a first option, a threshold CAPC value is configured via RRC signaling. Data belonging to LCH having a priority lower than the CAPC threshold is not allowed to be multiplexed with data belonging to LCH having a priority higher than the CAPC threshold. In a second option, each CAPC has a flag indicating if the CPAC can have reduced priority via RRC signaling. If the flag is set for the CAPC, then data belonging to LCH assigned with the CAPC cannot be multiplexed with data belonging to lower priority LCHs.