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    VIRTUAL SEARCH SPACES FOR BEAM INDICATION
    73.
    发明申请
    VIRTUAL SEARCH SPACES FOR BEAM INDICATION 有权

    公开(公告)号：US20210306118A1

    公开(公告)日：2021-09-30

    申请号：US17343594

    申请日：2021-06-09

    Applicant: QUALCOMM Incorporated

    Inventor： Wooseok Nam ,  Sony Akkarakaran ,  Tao Luo ,  Xiao Feng Wang ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Shengbo Chen ,  Yan Zhou

    IPC: H04L5/00 ,  H04L25/02 ,  H04L27/00 ,  H04L27/26 ,  H04L1/00

    Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify time and frequency resources for a physical downlink shared channel (PDSCH) to be transmitted to a user equipment (UE) in a first transmission time interval (TTI). The base station may transmit configuration information for a control channel search space set in a second TTI. The second TTI may precede the first TTI. The configuration information may include an indication of an absence of a physical downlink control channel (PDCCH) transmission to send in the control channel search space set indicating the identified time and frequency resources for the PDSCH, and a set of time and frequency resources for the control channel search space set. The UE may receive the configuration information and identify the time and frequency resources allocated for the PDSCH in the second TTI, and receive the PDSCH transmission in the second TTI.

    Feedback techniques in wireless communications
    74.
    发明授权
    Feedback techniques in wireless communications 有权

    公开(公告)号：US11082096B2

    公开(公告)日：2021-08-03

    申请号：US16728969

    申请日：2019-12-27

    Applicant: QUALCOMM INCORPORATED

    Inventor： Sony Akkarakaran ,  Tao Luo ,  Makesh Pravin John Wilson ,  Kaushik Chakraborty ,  Wooseok Nam ,  Shengbo Chen

    IPC: H04B7/0417 ,  H04L1/16 ,  H04L1/18 ,  H04B7/06 ,  H04L5/00

    Abstract: A user equipment (UE) may be configured to communicate a number of transmissions that may each have separate feedback processes. A feedback configuration for providing feedback for such separate feedback processes may be determined based on semi-static signaling and dynamic signaling. In some cases, semi-static signaling, such as radio resource control (RRC) signaling and dynamic signaling, such as downlink control information (DCI), may together provide a feedback configuration for a particular transmission. The semi-static signaling may provide a number of bits of feedback information, an interpretation of the bits of feedback information, or combinations thereof, and dynamic signaling may indicate that one or more of the bits are to have one of a number of available interpretations, may indicate that one or more additional bits are to be included with feedback, of combinations thereof. These feedback techniques may be used to provide feedback for uplink or downlink transmissions.

    SEQUENCE FOR REFERENCE SIGNALS DURING BEAM REFINEMENT
    77.
    发明申请
    SEQUENCE FOR REFERENCE SIGNALS DURING BEAM REFINEMENT 有权

    公开(公告)号：US20210135804A1

    公开(公告)日：2021-05-06

    申请号：US17091684

    申请日：2020-11-06

    Applicant: QUALCOMM Incorporated

    Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Xiao Feng Wang ,  Juan Montojo ,  Shengbo Chen ,  Wooseok Nam

    IPC: H04L5/00 ,  H04W74/08 ,  H04B7/06 ,  H04B7/08 ,  H04W16/28

    Abstract: Methods, systems, and devices for wireless communication are described. Wireless communications systems may support beamformed transmissions between devices (e.g., to improve coverage range). The beamformed transmissions may depend on discovery and maintenance of receive and transmit beams over which a given device may communicate with another device. Various receive and transmit beams for a given device may be compared using reference signals. As the number of devices attempting to access a cell increases, the number of reference signals to be transmitted may scale proportionally. Large numbers of reference signals may flood time-frequency resources of the system and/or require excessive processing at a mobile device. Scrambling sequences for reference signals may be employed to improve efficiency of resource usage. In aspects, the scrambling sequences may be implicitly determined (e.g., based on resources over which the access request was transmitted). Such an implicit association may reduce the need for additional signaling.

    RANDOM ACCESS CHANNEL PROCEDURES WITH MULTIPLE CARRIERS
    78.
    发明申请
    RANDOM ACCESS CHANNEL PROCEDURES WITH MULTIPLE CARRIERS 有权

    公开(公告)号：US20210127428A1

    公开(公告)日：2021-04-29

    申请号：US17142622

    申请日：2021-01-06

    Applicant: QUALCOMM Incorporated

    Inventor： Sony Akkarakaran ,  Tao Luo ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Xiao Feng Wang ,  Kaushik Chakraborty ,  Wooseok Nam ,  Shengbo Chen ,  Juan Montojo

    IPC: H04W74/08 ,  H04W74/00 ,  H04L5/00

    Abstract: Methods, systems, and devices for wireless communication are described. Wireless communications systems may support uplink random access channel (RACH) transmissions on multiple beams and over multiple component carriers (CCs). A wireless device may transmit a random access preamble to a base station in a first RACH transmission, which may indicate a set of CCs over which the base station may respond with a random access response (RAR) in a second RACH transmission. The second RACH transmission may then include an indication for which CCs the wireless device may use for a subsequent RACH transmission (e.g., a RACH message 3). The wireless device may also indicate a beam index and/or time-frequency resources associated with beams and/or CCs used for such cell acquisition transmissions. In other examples, the base station may indicate resources (e.g., via a handover command or RACH command) for wireless device scheduling request and/or beam-failure recovery request transmission.

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