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    LTE hierarchical burst mode
    181.
    发明授权
    LTE hierarchical burst mode 有权

    公开(公告)号：US10412728B2

    公开(公告)日：2019-09-10

    申请号：US15432330

    申请日：2017-02-14

    Applicant: QUALCOMM Incorporated

    Inventor： Durga Prasad Malladi ,  Yongbin Wei

    IPC: H04W72/04 ,  H04L5/00 ,  H04J11/00 ,  H04L5/14 ,  H04W74/08 ,  H04L1/18 ,  H04L27/26 ,  H04L12/26 ,  H04W16/32

    Abstract: Methods, systems, and devices are described for hierarchical communications within a wireless communications system. An eNB and/or a UE may be configured to operate within the wireless communications system which is at least partially defined through a first layer with first layer transmissions having a first subframe type and a second layer with second layer transmissions having a second subframe type. The first subframe type may have a first round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, and the second layer may have a second RTT that is less than the first RTT. Subframes of the first subframe type may be multiplexed with subframes of the second subframe type, such as through time division multiplexing.

    Techniques for configuring uplink transmissions using shared radio frequency spectrum band
    183.
    发明授权
    Techniques for configuring uplink transmissions using shared radio frequency spectrum band 有权

    公开(公告)号：US10362575B2

    公开(公告)日：2019-07-23

    申请号：US15837463

    申请日：2017-12-11

    Applicant: QUALCOMM incorporated

    Inventor： Yongbin Wei ,  Durga Prasad Malladi ,  Tao Luo ,  Srinivas Yerramalli ,  Aleksandar Damnjanovic ,  Hao Xu ,  Peter Gaal ,  Wanshi Chen

    IPC: H04W72/00 ,  H04W72/04 ,  H04L27/26 ,  H04W74/08 ,  H04W72/12

    Abstract: Techniques for wireless communications over a shared radio frequency spectrum band, may include techniques for transmitting uplink data transmissions using allocated uplink resources. Allocated uplink resources may include an uplink channel comprising a number of allocated interlaces of resource blocks (RBs) for use by a user equipment (UE). An incoming data stream may be processed and data separated into each of the allocated interlaces of RBs for the UE. Such separation may be through demultiplexing the data stream to obtain data for the allocated interlaces of RBs. The demultiplexed data may be mapped onto associated resource elements associated with the allocated interlaces of RBs, and transmitted. Different types of uplink channels, such as a physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH) and/or a physical random access channel (PRACH) may be allocated to interlaces of RBs in one or more subframes of a transmitted radio frame.

    Hybrid automatic repeat request timing for reduced transmission time intervals
    185.
    发明授权
    Hybrid automatic repeat request timing for reduced transmission time intervals 有权

    公开(公告)号：US10341061B2

    公开(公告)日：2019-07-02

    申请号：US15444875

    申请日：2017-02-28

    Applicant: QUALCOMM Incorporated

    Inventor： Wanshi Chen ,  Peter Gaal ,  Shimman Arvind Patel ,  Yongbin Wei ,  Aleksandar Damnjanovic

    IPC: H04L1/18 ,  H04W72/04 ,  H04W72/12 ,  H04W74/02 ,  H04L5/00

    Abstract: Systems, methods, and apparatuses are described for wireless communication, including for hybrid automatic repeat request (HARQ) feedback in a system that supports communications using transmission time intervals (TTIs) of different durations. A base station may identify a user equipment's (UE) capability to provide HARQ feedback for transmissions that use TTIs of a shorter duration relative to other TTIs supported in the system. The base station may select a HARQ timing mode based on the capability of the UE and may indicate the selected HARQ timing mode to the UE. The base station may then transmit one or more data transmissions to the UE using the reduced TTIs. The UE may respond with HARQ feedback based on the HARQ timing mode. The HARQ timing mode may be based on different response times based on the location of the data transmission within a TTI or relative to data transmission in other TTIs.

    Narrowband operation with reduced sampling rate
    186.
    发明授权
    Narrowband operation with reduced sampling rate 有权

    公开(公告)号：US10341042B2

    公开(公告)日：2019-07-02

    申请号：US15212595

    申请日：2016-07-18

    Applicant: QUALCOMM Incorporated

    Inventor： Jing Lei ,  Hao Xu ,  Yongbin Wei ,  Durga Prasad Malladi ,  Peter Gaal

    IPC: H04L27/26 ,  H04W4/70 ,  H04L1/00 ,  H03H17/06

    Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may use a sampling rate that is less than a default sampling rate associated with a wireless carrier. The device may operate in a narrowband portion of a system bandwidth, and the sampling rate may be less than that used by devices monitoring the whole bandwidth. Multiple sampling rates may be used so that a portion of signal processing may be associated with one sampling rate and another portion of the signal processing may be associated with another sampling rate. The size of a cyclic prefix (CP) may be adjusted based on the sampling rate to align subframe timing boundaries for signals of different sampling rates. In some cases, each symbol of a signal may include both a CP and a postfix such that the postfix for each symbol overlaps the prefix of the next symbol.

    TRAINING FIELD ASSISTED MEDIUM SENSING ACROSS MULTIPLE RADIO ACCESS TECHNOLOGIES
    187.
    发明申请
    TRAINING FIELD ASSISTED MEDIUM SENSING ACROSS MULTIPLE RADIO ACCESS TECHNOLOGIES 审中-公开

    公开(公告)号：US20190158333A1

    公开(公告)日：2019-05-23

    申请号：US16168629

    申请日：2018-10-23

    Applicant: QUALCOMM Incorporated

    Inventor： Xiaoxia Zhang ,  Yongbin Wei ,  Tamer Kadous ,  Zhifei Fan ,  Jing Sun

    IPC: H04L27/26 ,  H04L27/227 ,  H04W72/04 ,  H04L25/02

    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless systems, different wireless devices may communicate using different radio access technologies (RATs) in a shared radio frequency spectrum. Prior to communicating on a channel in the shared radio frequency spectrum, a wireless device may transmit a training field as part of a preamble in a transmission on the channel to reserve the channel for the transmission. As described herein, a training field transmitted by a wireless device using one RAT may be transmitted with an autocorrelation property associated with training fields of another RAT. As such, a wireless device configured to communicate using the other RAT may be able to receive and identify the training field (e.g., based on the autocorrelation property), and the wireless device may use the additional techniques described herein to determine an availability of the channel based on the training field.

    SCHEDULING TIMELINE IN NEW RADIO-SPECTRUM SHARING (NR-SS)
    190.
    发明申请
    SCHEDULING TIMELINE IN NEW RADIO-SPECTRUM SHARING (NR-SS) 审中-公开

    公开(公告)号：US20190110302A1

    公开(公告)日：2019-04-11

    申请号：US16129545

    申请日：2018-09-12

    Applicant: QUALCOMM Incorporated

    Inventor： Xiaoxia Zhang ,  Vikas Jain ,  Taesang Yoo ,  Tamer Kadous ,  Yongbin Wei

    IPC: H04W72/12 ,  H04L1/18

    Abstract: Wireless communications systems and methods related to determining scheduling and transmission timeline for communicating in a shared communication medium are provided. A first wireless communication device communicates, with a second wireless communication device, scheduling information during a first time period of a first transmission opportunity (TXOP) of a first network operating entity in a shared communication medium, the scheduling information indicating an offset time period relative to the first time period. The first wireless communication device communicates, with the second wireless communication device, a communication signal during a second TXOP subsequent to the first TXOP based on the offset time period.

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