Transmission of group common PDCCH (physical downlink control channel) for NR (new radio)

    公开(公告)号:US11147051B2

    公开(公告)日:2021-10-12

    申请号:US16464814

    申请日:2018-02-05

    Applicant: Apple Inc.

    Abstract: Techniques discussed herein can facilitate transmission and reception of group common PDCCH (Physical Downlink Control Channel) for NR (New Radio). One example embodiment employable by a UE (User Equipment) comprises processing circuitry configured to: process higher layer signaling that configures a set of combinations for slot formats for the UE; detect, via blind decoding on at least a portion of a control resource set, a DCI (Downlink Control Information) message that indicates a combination for slot formats of the set of combinations for slot formats via a SFI (slot format indicator); and determine a slot format for one or more slots based on the indicated combination for slot formats, wherein the slot format indicates, for each symbol of the one or more slots, whether that symbol is DL (Downlink), UL (Uplink), or a flexible symbol in the slot format.

    Techniques for improving new radio (NR) positioning performance

    公开(公告)号:US12114281B2

    公开(公告)日:2024-10-08

    申请号:US17280207

    申请日:2019-09-26

    Applicant: Apple Inc.

    CPC classification number: H04W64/00 G01S5/10

    Abstract: Systems, methods, and circuitries are disclosed for determining a position of a wireless device. In one example, an apparatus for a first wireless communication device including baseband circuitry having a radio frequency (RF) interface configured to transmit and receive RF signals is provided. The apparatus includes one or more processors configured to process a signal received from a second wireless communication device to identify at least first arrival path and a different arrival path between the first wireless communication device and the second wireless communication device; and determine a location of the second wireless communication device based on the first arrival path and the different arrival path.

    Collision Handling of Reference Signals

    公开(公告)号:US20220190987A1

    公开(公告)日:2022-06-16

    申请号:US17689229

    申请日:2022-03-08

    Applicant: Apple Inc.

    Abstract: A user equipment (UE) can include processing circuitry configured to decode control information of a physical down-in link control channel (PDCCH) received via a resource within a control resource set (CORESET) occupying a subset of a plurality of e OFDM symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a PDSCH. The DM-RS can be detected within the slot, the DM-RS starting at a symbol 01 location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data scheduled by the
    PDCCH and received via the PDSCH can be decoded, where the decoding is based on the detected DM-RS.

    System and method for PUCCH transmission scheme

    公开(公告)号:US11146435B2

    公开(公告)日:2021-10-12

    申请号:US16408063

    申请日:2019-05-09

    Applicant: APPLE INC.

    Abstract: Technology for a user equipment (UE) configured for communication of sounding reference signal (SRS) resources is disclosed. The UE can decode a radio resource control (RRC) signal indicating an SRS to transmit with a physical uplink control channel (PUCCH), wherein the PUCCH and the SRS are quasi co located (QCLed) based on a spatial received parameter. The UE can encode an SRS for transmission using the spatial received parameter. The UE can encode uplink control information (UCI) for transmission in the PUCCH using the spatial received parameter. The UE can have a memory interface configured to send to a memory the spatial received parameter.

    SUPPORT OF ADVANCED USER EQUIPMENT (UE) MINIMUM PROCESSING TIMES IN NEW RADIO (NR) SYSTEMS

    公开(公告)号:US20210058956A1

    公开(公告)日:2021-02-25

    申请号:US17075562

    申请日:2020-10-20

    Applicant: Apple Inc.

    Abstract: A method of support of aggressive user equipment (UE) minimum processing times for physical downlink shared channel (PDSCH) processing and physical uplink shared channel (PUSCH) preparation in new radio (NR) is disclosed. The method includes indicating or causing to indicate a capability from the UE to the network in the form of capability reporting for support of Capability 2 processing times, and multiplexing or causing to multiplex scheduling instances with Capabilities 1 or 2 based on the indication. The method also includes applying or causing to apply a relaxation to the minimum UE processing times, N1, indicating time between end of PDSCH to earliest start of corresponding hybrid automatic repeat request-acknowledge (HARQ-ACK) feedback transmission when the PDSCH has specific durations and/or mapping types or has time-domain overlaps with the scheduling physical downlink control channel (PDCCH). A corresponding apparatus and non-transitory computer readable medium are also disclosed.

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