Configured Grant Operations for Multiple PUSCH

    公开(公告)号:US20230422273A1

    公开(公告)日:2023-12-28

    申请号:US18466451

    申请日:2023-09-13

    Applicant: Apple Inc.

    CPC classification number: H04W72/232 H04L1/1822 H04W72/1273 H04W72/11

    Abstract: A user equipment (UE) is configured to receive from a base station a semi-persistent scheduling (SPS) configuration for physical downlink shared channel (PDSCH) transmissions wherein multiple PDSCHs are transmitted within a single period of the SPS, the SPS configuration including a parameter for a number of hybrid automatic repeat request (HARQ) processes associated with the SPS configuration, receive from the base station a downlink control information (DCI) transmission for activating the SPS configuration, the DCI including a HARQ process ID for one of the PDSCH transmissions in the SPS configuration, wherein the UE determines a maximum number of PDSCH transmissions allowed within the single period based on the parameter for the number of HARQ processes associated with the SPS configuration, validate the DCI to determine time domain resources to use for the PDSCH transmission and receive from the base station the multiple PDSCH transmissions within the single SPS period.

    TRP-Specific PUSCH Transmissions for Multi-TRP Operation

    公开(公告)号:US20230422272A1

    公开(公告)日:2023-12-28

    申请号:US18462734

    申请日:2023-09-07

    Applicant: Apple Inc.

    CPC classification number: H04W72/232 H04W72/044 H04B7/0456

    Abstract: A user equipment (UE) is configured to communicate with one or more transmission and reception points (TRPS). The UE receives a sounding reference signal (SRS) resource set configuration including a first resource set corresponding to a first transmission and reception point (TRP) and a second resource set corresponding to a second TRP, receives a downlink control information (DCI) transmission including an SRS resource indicator (SRI) indicating (i) which resource from the first resource set should be selected for a first physical uplink shared channel (PUSCH) transmission to a first TRP, and (ii) which resource from the second resource set should be selected for a second PUSCH transmission to a second TRP and transmits the first PUSCH transmission to the first TRP and the second PUSCH transmission to the second TRP.

    JOINT CHANNEL ESTIMATION FOR MULTIPLE DOWNLINK TRANSMISSIONS

    公开(公告)号:US20230344677A1

    公开(公告)日:2023-10-26

    申请号:US18129672

    申请日:2023-03-31

    Applicant: Apple Inc.

    CPC classification number: H04L25/0204 H04L5/0051 H04W72/0446

    Abstract: Mechanisms are provided for a user equipment (UE) to perform joint channel estimation for multiple downlink transmissions. A method performed by a UE can include reporting, to a base station, a capability of the lIE to perform joint channel estimation, receiving a configuration for joint channel estimation, where the configuration includes a time domain window (TDW) indicating a duration of the joint channel estimation, and further determining whether to perform the joint channel estimation. Based on a determination to perform the joint channel estimation, the method can include determining an actual time domain window within the TDW for performing the joint channel estimation, and performing the joint channel estimation within the actual time domain window for a first physical downlink shared channel (PDSCH) transmission based on a first demodulation reference signals (DMRS), and a second PDSCH transmission based on a second DMRS.

    SYSTEM AND METHOD FOR FAST BEAM TRACKING IN A HIGH FREQUENCY WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230239852A1

    公开(公告)日:2023-07-27

    申请号:US17442519

    申请日:2020-10-16

    Applicant: Apple Inc.

    CPC classification number: H04W72/046 H04W72/23 H04W72/54 H04W72/51

    Abstract: Methods and apparatuses are disclosed for performing fast beam switching in a high-frequency wireless communication environment. Higher frequencies reduce transmission wavelength, which allows for an increased number of antennas and an increased number of beams. Therefore, beams become narrower and are more prone to failure. The UE must be capable of quickly identifying the beam failure and switching to a new beam. Therefore, the UE is capable of receiving multiple beams from the base station and configures both for testing and immediate use. In some cases, the UE can receive multiple beams for testing and assumes a default beam while feeding back to the base station a preferred beam. To support the larger number of available beams, MAC-CE and DCI are modified to identify this increased number of states. Alternatively, two MAC-CEs are sent, each containing a different group of states, and the DCI identifies both the group and the selected state.

    DOWNLINK (DL) AND UPLINK (UL) SCHEDULING FOR TRANSMISSION ABOVE 52.6 GHZ

    公开(公告)号:US20230239846A1

    公开(公告)日:2023-07-27

    申请号:US17439680

    申请日:2020-10-16

    Applicant: Apple Inc.

    CPC classification number: H04W72/0453 H04W72/23 H04W72/02

    Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing downlink and uplink scheduling in communication above 52.6 GHz. For example, some aspects of this disclosure relate to a base station. The base station includes a transceiver configured to communicate over a wireless network with a user equipment (UE) and a processor communicatively coupled to the transceiver. The processor determines that the communication between the base station and the UE is in a frequency range above 52.6 GHz. In response to the determination, the processor disables a frequency main resource assignment (FDRA), modifies a Resource Block Group (RBG) size, or modifies a Resource Indication Value (RIV) determination. The processor generates a Downlink Channel Indicator (DCI) based at least on one or more of the disabled FDRA, the modified RBG size, or the modified RIV determination. The processor transmits, using the transceiver, the DCI to the UE.

Patent Agency Ranking