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    TECHNIQUES FOR INITIAL ACCESS IN WIRELESS SYSTEMS
    71.
    发明申请
    TECHNIQUES FOR INITIAL ACCESS IN WIRELESS SYSTEMS 审中-公开

    公开(公告)号：US20190313357A1

    公开(公告)日：2019-10-10

    申请号：US16373416

    申请日：2019-04-02

    Applicant: QUALCOMM Incorporated

    Inventor： Xiao Feng Wang ,  Peter Gaal ,  Iyab Issam Sakhnini ,  Jun Ma

    IPC: H04W56/00 ,  H04B7/185 ,  H04W48/04 ,  H04W72/04 ,  H04W76/10

    Abstract: Methods, systems, devices, and apparatuses for wireless communications are described that support techniques for initial access in wireless systems. Generally, the described techniques provide for communicating satellite information to simplify initial access procedures. A wireless communications system may signal relevant information (e.g., Doppler information or propagation delay information) associated with communications through a satellite to mobile terminals (e.g., user equipment (UEs)). The mobile terminals may utilize the relevant information to generate an uplink transmission (e.g., a random access message or an initial access message) that compensates for the Doppler shift and propagation delay that may be experienced by communications between the mobile terminals and the satellite.

    HD-FDD HARQ OPERATION
    72.
    发明申请
    HD-FDD HARQ OPERATION 审中-公开
    HD-FDD HARQ操作

    公开(公告)号：US20150326381A1

    公开(公告)日：2015-11-12

    申请号：US14706856

    申请日：2015-05-07

    Applicant: QUALCOMM Incorporated

    Inventor： Iyab Issam Sakhnini ,  Tingfang Ji ,  Hao Xu ,  Wanshi Chen ,  Alexei Yurievitch Gorokhov

    IPC: H04L5/16 ,  H04L5/00 ,  H04L1/18 ,  H04B1/52

    CPC classification number: H04L5/16 ,  H04B1/52 ,  H04L1/0027 ,  H04L1/1822 ,  H04L1/1887 ,  H04L1/1896 ,  H04L5/0055 ,  H04L5/0073 ,  H04L5/0091 ,  H04L5/0092 ,  H04L5/1438

    Abstract: Methods, systems, and devices for half-duplex frequency division duplexing (HD-FDD) hybrid automatic repeat request (HARQ) operation are described. The base station may receive a message from a user equipment (UE) indicative of a duplexing capability of the UE. The base station may then select a HARQ process limit based on the duplexing capability. In some examples, the base station may anticipate a collision between an uplink (UL) transmission and a downlink (DL) subframe based on the selected HARQ process limit. The base station may then schedule a transmission to avoid the anticipated collision. In some examples, the base station may limit a number of configurations available for channel quality indicator (CQI) or a precoding matrix indicator (PMI).

    Abstract translation: 描述了用于半双工频分双工（HD-FDD）混合自动重传请求（HARQ）操作的方法，系统和设备。 基站可以从指示UE的双工能力的用户设备（UE）接收消息。 然后，基站可以基于双工能力来选择HARQ进程限制。 在一些示例中，基站可以基于所选择的HARQ进程限制来预期上行链路（UL）传输和下行链路（DL）子帧之间的冲突。 然后，基站可以安排传输以避免预期的冲突。 在一些示例中，基站可以限制可用于信道质量指示符（CQI）或预编码矩阵指示符（PMI）的多个配置。

    Random access channel message without a physical downlink control channel
    74.
    发明授权
    Random access channel message without a physical downlink control channel 有权

    公开(公告)号：US12238780B2

    公开(公告)日：2025-02-25

    申请号：US18340347

    申请日：2023-06-23

    Applicant: QUALCOMM Incorporated

    Inventor： Mahmoud Taherzadeh Boroujeni ,  Iyab Issam Sakhnini ,  Tao Luo

    IPC: H04W74/0833

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a first random access channel (RACH) message to a base station, and monitor for a second RACH message from the base station in a set of resource candidates that are based at least in part on the transmitted first RACH message absent downlink control information. The set of resource candidates may be outside of a physical downlink control channel. Numerous other aspects are provided.

    Overlap extensions and weighting functions for communications with guard intervals
    75.
    发明授权
    Overlap extensions and weighting functions for communications with guard intervals 有权

    公开(公告)号：US12199801B2

    公开(公告)日：2025-01-14

    申请号：US18050770

    申请日：2022-10-28

    Applicant: QUALCOMM Incorporated

    Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Hemant Saggar ,  Jing Sun

    IPC: H04L27/26

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting device may add a first extension before modulated symbols of a communication, the first extension including data from an end portion of the modulated symbols. The transmitting device may add a second extension after the modulated symbols, the second extension including data from a beginning portion of the modulated symbols. The transmitting device may apply a first weighting function that overlaps the first extension and the beginning portion of the modulated symbols. The transmitting device may apply a second weighting function that overlaps the end portion of the modulated symbols and the second extension. The transmitting device may add one or more of a header before the first extension or a tail after the second extension. The transmitting device may transmit the communication. Numerous other aspects are described.

    Non-coherent downlink (DL) control channel for higher bands
    76.
    发明授权
    Non-coherent downlink (DL) control channel for higher bands 有权

    公开(公告)号：US12167413B2

    公开(公告)日：2024-12-10

    申请号：US17647305

    申请日：2022-01-06

    Applicant: QUALCOMM Incorporated

    Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Jing Sun ,  Xiaoxia Zhang ,  Jun Ma

    IPC: H04W72/14 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/23

    Abstract: Systems, methods, and devices for wireless communication that support mechanisms for non-coherent, sequence-based downlink control signaling in a wireless communication system. In aspects, the mechanisms for non-coherent, sequence-based downlink control signaling may include a new non-coherent, sequence-based downlink control channel or signal transmitted from a base station to a user equipment (UE) and configured to convey information bits (e.g., control information bits) to the UE. The UE may receive a signal transmitted over the new non-coherent, sequence-based downlink control channel and may decode the signal to extract the control information. The UE may then apply a control based on the control information received from the base station in the signal over the non-coherent, sequence-based downlink control channel.

    CONDITIONAL HYBRID AUTOMATIC REPEAT REQUEST RETRANSMISSION ACROSS CARRIERS
    77.
    发明公开
    CONDITIONAL HYBRID AUTOMATIC REPEAT REQUEST RETRANSMISSION ACROSS CARRIERS 审中-公开

    公开(公告)号：US20240340109A1

    公开(公告)日：2024-10-10

    申请号：US18296313

    申请日：2023-04-05

    Applicant: QUALCOMM Incorporated

    Inventor： Diana Maamari ,  Iyab Issam Sakhnini ,  Hyun Yong Lee ,  Mickael Mondet

    IPC: H04L1/1812 ,  H04L5/00 ,  H04W8/22

    CPC classification number: H04L1/1816 ,  H04L5/001 ,  H04W8/22

    Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a user equipment (UE) and a network entity may support conditional cross-carrier hybrid automatic repeat request (HARQ) retransmissions. The UE may transmit a capability message to the network entity to indicate a capability of the UE to support the cross-carrier HARQ retransmissions. The UE or the network entity may transmit a message on a first component carrier. The UE or the network entity may retransmit the message on a second component carrier based on an availability of resources for retransmitting the message, based on the capability of the UE, and based on one or more conditions associated with communications by the UE satisfying a threshold condition for cross-carrier HARQ retransmissions. For uplink communications, the UE may perform the transmitting and conditional retransmitting. For downlink communications, the network entity may perform the transmitting and conditional retransmitting.

    MULTIPLEXING TECHNIQUES USING ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING (OFDM) INDEX MODULATION
    80.
    发明公开
    MULTIPLEXING TECHNIQUES USING ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING (OFDM) INDEX MODULATION 审中-公开

    公开(公告)号：US20240297747A1

    公开(公告)日：2024-09-05

    申请号：US18178459

    申请日：2023-03-03

    Applicant: QUALCOMM Incorporated

    Inventor： Iyab Issam Sakhnini ,  Tao Luo

    IPC: H04L5/00

    CPC classification number: H04L5/0007 ,  H04L5/0025 ,  H04L5/0048

    Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a signal including multiple sets of bits, where each set of bits of the multiple sets of bits is associated with either a first group or a second group based on a respective modulation index for each set of bits. Each set of bits may map to one or more additional bits based on an association of each set of bits with the first group, the second group, or both. The first wireless device may decode either or both of a first message formed at least partially by the one or more additional bits or a second message formed at least partially by respective sets of bits associated with the second group. Each of the first and second messages may be for different channels or for different wireless devices.

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