Signaling, procedures, user equipment and base stations for uplink ultra reliable low latency communications
View Patent ↗A user equipment (UE) is described that includes receiving circuitry configured to receive, from a base station apparatus, a radio resource control message including first information used for configuring a periodicity for an uplink data transmission, the receiving circuitry configured to receive on a physical downlink control channel, from the base station apparatus, second information used for indicating an activation for the uplink data transmission. Transmitting circuitry is configured to transmit, to the base station apparatus, confirmation information Medium Access Control (MAC) Control Element (CE) for the second information, the transmitting circuitry configured to perform on a physical uplink shared channel, to the base station apparatus, the uplink data transmission based on the first information and the second information. The receiving circuitry is also configured to receive on the physical downlink control channel, from the base station apparatus, third information used for indicating a deactivation for the uplink data transmission.
1. A user equipment (UE) that communicates with a base station apparatus, comprising:
receiving circuitry configured to receive a radio resource control (RRC) message comprising first information used for configuring a periodicity,
the receiving circuitry configured to receive a RRC message comprising second information used for configuring a numerology,
the receiving circuitry configured to detect in a common search space, a physical downlink control channel for a downlink control information (DCI) format with cyclic redundancy check (CRC) scrambled by a first radio network identifier (RNTI), the first RNTI being different from a Cell-RNTI (C-RNTI) and a semi-persistent scheduling C-RNTI, the first RNTI being used for indicating an activation and a deactivation for an uplink data transmission on a physical uplink shared channel (PUSCH) based on the periodicity and the numerology; and
transmitting circuitry configured to transmit confirmation information Medium Access Control (MAC) Control Element (CE) in a case that third information used for indicating the activation for the uplink data transmission on the PUSCH is comprised in the DCI format with the CRC scrambled by the first RNTI,
the transmitting circuitry configured to perform, based on a detection of the DCI format comprising the third information, the uplink data transmission on the PUSCH based on the periodicity and the numerology, wherein
the transmitting circuitry is configured to transmit confirmation information MAC CE in a case that fourth information used for indicating the deactivation for the uplink data transmission on the PUSCH is comprised in the DCI format with the CRC scrambled by the first RNTI, and
the confirmation information MAC CE for the DCI format comprising the third information is identified by a MAC protocol data unit (MAC PDU) subheader with a logical channel identifier (LCID),
the confirmation information MAC CE for the DCI format comprising the fourth information is identified by the MAC PDU subheader with the LCID, and
the same index of the LCID is used for the confirmation information MAC CE for the DCI format comprising the third information and the confirmation information MAC CE for the DCI format comprising the fourth information.
2. A base station apparatus that communicates with a user equipment (UE), comprising:
transmitting circuitry configured to transmit a radio resource control (RRC) message comprising first information used for configuring a periodicity,
the transmitting circuitry configured to transmit a RRC message comprising second information used for configuring a numerology,
the transmitting circuitry configured to transmit in a common search space of a physical downlink control channel, a downlink control information (DCI) format with cyclic redundancy check (CRC) scrambled by a first radio network identifier (RNTI), the first RNTI being different from a Cell-RNTI (C-RNTI) and a semi-persistent scheduling C-RNTI, the first RNTI being used for indicating an activation and a deactivation for an uplink data transmission on a physical uplink shared channel (PUSCH) based on the periodicity and the numerology; and
receiving circuitry configured to receive confirmation information Medium Access Control (MAC) Control Element (CE) in a case that third information used for indicating the activation for the uplink data transmission on the PUSCH is comprised in the DCI format with the CRC scrambled by the first RNTI,
the receiving circuitry configured to receive, based on a transmission of the DCI format comprising the third information, the uplink data transmission on the PUSCH based on the periodicity and the numerology, wherein
the receiving circuitry is configured to receive confirmation information MAC CE in a case that fourth information used for indicating the deactivation for the uplink data transmission on the PUSCH is comprised in the DCI format with the CRC scrambled by the first RNTI, and
the confirmation information MAC CE for the DCI format comprising the third information is identified by a MAC protocol data unit (MAC PDU) subheader with a logical channel identifier (LCID),
the confirmation information MAC CE for the DCI format comprising the fourth information is identified by the MAC PDU subheader with the LCID, and
the same index of the LCID is used for the confirmation information MAC CE for the DCI format comprising the third information and the confirmation information MAC CE for the DCI format comprising the fourth information.
3. A communication method of a user equipment that communicates with a base station apparatus, comprising:
receiving a radio resource control (RRC) message comprising first information used for configuring a periodicity;
receiving a RRC message comprising second information used for configuring a numerology;
detecting in a common search space, a physical downlink control channel for a downlink control information (DCI) format with cyclic redundancy check (CRC) scrambled by a first radio network identifier (RNTI), the first RNTI being different from a Cell-RNTI (C-RNTI) and a semi-persistent scheduling C-RNTI, the first RNTI being used for indicating an activation and a deactivation for an uplink data transmission on a physical uplink shared channel (PUSCH) based on the periodicity and the numerology;
transmitting confirmation information Medium Access Control (MAC) Control Element (CE) in a case that third information used for indicating the activation for the uplink data transmission on the PUSCH is comprised in the DCI format with the CRC scrambled by the first RNTI;
performing, based on a detection of the DCI format comprising the third information, the uplink data transmission on the PUSCH based on the periodicity and the numerology;
transmitting confirmation information MAC CE in a case that fourth information used for indicating the deactivation for the uplink data transmission on the PUSCH is comprised in the DCI format with the CRC scrambled by the first RNTI, wherein
the confirmation information MAC CE for the DCI format comprising the third information is identified by a MAC protocol data unit (MAC PDU) subheader with a logical channel identifier (LCID),
the confirmation information MAC CE for the DCI format comprising the fourth information is identified by the MAC PDU subheader with the LCID, and
the same index of the LCID is used for the confirmation information MAC CE for the DCI format comprising the third information and the confirmation information MAC CE for the DCI format comprising the fourth information.
4. A communication method of a base station apparatus that communicates with a user equipment (UE), comprising:
transmitting a radio resource control (RRC) message comprising first information used for configuring a periodicity;
transmitting a RRC message comprising second information used for configuring a numerology;
transmitting in a common search space of a physical downlink control channel, a downlink control information (DCI) format with cyclic redundancy check (CRC) scrambled by a first radio network identifier (RNTI), the first RNTI being different from a Cell-RNTI (C-RNTI) and a semi-persistent scheduling C-RNTI, the first RNTI being used for indicating an activation and a deactivation for the uplink data transmission on a physical uplink shared channel (PUSCH) based on the periodicity and the numerology;
receiving confirmation information Medium Access Control (MAC) Control Element (CE) in a case that third information used for indicating the activation for the uplink data transmission on the PUSCH is comprised in the DCI format with the CRC scrambled by the first RNTI;
receiving, based on a transmission of the DCI format comprising the third information, the uplink data transmission on the PUSCH based on the periodicity and the numerology;
receiving confirmation information MAC CE in a case that fourth information used for indicating the deactivation for the uplink data transmission on the PUSCH is comprised in the DCI format with the CRC scrambled by the first RNTI, wherein
the confirmation information MAC CE for the DCI format comprising the third information is identified by a MAC protocol data unit (MAC PDU) subheader with a logical channel identifier (LCID),
the confirmation information MAC CE for the DCI format comprising the fourth information is identified by the MAC PDU subheader with the LCID, and
the same index of the LCID is used for the confirmation information MAC CE for the DCI format comprising the third information and the confirmation information MAC CE for the DCI format comprising the fourth information.