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    DOWNLINK CHANNEL DESIGN FOR LTE WITH LOW LATENCY
    11.
    发明专利
    DOWNLINK CHANNEL DESIGN FOR LTE WITH LOW LATENCY 未知

    公开(公告)号：AU2019201071B2

    公开(公告)日：2020-05-07

    申请号：AU2019201071

    申请日：2019-02-15

    Applicant: QUALCOMM INC

    Inventor： GAAL PETER ,  CHEN WANSHI ,  PATEL SHIMMAN ARVIND ,  MALLADI DURGA PRASAD ,  WEI YONGBIN ,  DAMNJANOVIC ALEKSANDAR ,  XU HAO ,  DABEER ONKAR JAYANT

    IPC: H04L1/00 ,  H04L5/00 ,  H04W72/00

    Abstract: Methods and apparatus for managing user equipment (UE) communications in a wireless communications system are disclosed. In an embodiment, one method comprises receiving, at the UE, control information located at one or more resource element positions in a control channel region of a downlink subframe or a slot of the downlink subframe. A check is performed on the control channel region received at each of the one or more resource element positions to determine whether corresponding control information is for the UE. Where the check indicates the corresponding control information is for the UE, a position of a data channel region and a transmission time interval (TTI) length of the data channel region is determined as being less than a temporal length of the downlink subframe, based on the corresponding control information. At the determined position, downlink data in the data channel region is received.

    Flexible time division duplexing (TDD) subframe structure with latency reduction
    12.
    发明专利
    Flexible time division duplexing (TDD) subframe structure with latency reduction 未知

    公开(公告)号：AU2016342097B2

    公开(公告)日：2020-03-12

    申请号：AU2016342097

    申请日：2016-08-25

    Applicant: QUALCOMM INC

    Inventor： CHEN WANSHI ,  PATEL SHIMMAN ARVIND ,  MONTOJO JUAN ,  XU HAO ,  DAMNJANOVIC ALEKSANDAR

    IPC: H04W72/54

    Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify an uplink/downlink (UL/DL) configuration that defines subframe configuration options for each subframe of a frame. For example, the UL/DL configuration may establish parameters for time division duplexing (TDD) operation between a base station and a user equipment (UE). The wireless device (e.g., the UE or base station) may determine a constraint for a subframe of the frame based on the UL/DL configuration and then determine an adaptive subframe configuration based on the constraint. The adaptive subframe configuration may include one or several downlink symbol periods and one or several uplink symbol periods. The wireless device may then communicate during the subframe according to the adaptive subframe configuration rather than the original UL/DL configuration; and, because the adaptive subframe may be constrained by the identified UL/DL configuration, the communication during the subframe may avoid disruption to UEs.

    Data transmission in a physical downlink control channel
    13.
    发明专利
    Data transmission in a physical downlink control channel 未知

    公开(公告)号：AU2018290341A1

    公开(公告)日：2019-12-05

    申请号：AU2018290341

    申请日：2018-06-22

    Applicant: QUALCOMM INC

    Inventor： HOSSEINI SEYEDKIANOUSH ,  CHEN WANSHI ,  PATEL SHIMMAN ARVIND

    IPC: H04W72/04

    Abstract: Communications data having a reliability and latency threshold may be transmitted within a legacy downlink control channel. For example, a user equipment (UE) may utilize low latency services, such as ultra-reliable low latency communications (URLLC). In such cases, a base station may transmit URLLC data in a legacy physical downlink control channel (PDCCH) of a downlink transmission time interval. The UE may determine that the PDCCH includes downlink data. The downlink data may have a delay tolerance below the threshold level (e.g., URLLC data), and the determination may be based on a downlink control information (DCI) payload within the received PDCCH. The UE may then receive the downlink data within the PDCCH. In some examples, the downlink data may be received within the DCI payload. Additionally or alternatively, the DCI payload may provide an indication of resources within the PDCCH that are utilized for carrying the downlink data.

    Techniques for cellular random access in a subframe of an unlicensed radio frequency spectrum band
    15.
    发明专利
    Techniques for cellular random access in a subframe of an unlicensed radio frequency spectrum band 未知

    公开(公告)号：AU2016220173B2

    公开(公告)日：2019-08-15

    申请号：AU2016220173

    申请日：2016-02-17

    Applicant: QUALCOMM INC

    Inventor： DABEER ONKAR JAYANT ,  DAMNJANOVIC ALEKSANDAR ,  VAJAPEYAM MADHAVAN SRINIVASAN ,  ZHANG XIAOXIA ,  PATEL SHIMMAN ARVIND ,  CHEN WANSHI ,  WEI YONGBIN

    IPC: H04W74/08 ,  H04W16/14

    Abstract: Techniques are described for wireless communication. One method includes winning a contention for access to an unlicensed radio frequency spectrum band, transmitting a request message upon winning the contention for access to the unlicensed radio frequency spectrum band, and receiving a response message over the unlicensed radio frequency spectrum band. The request message is transmitted by a user equipment (UE) on an enhanced physical random access channel (ePRACH) or shortened ePRACH (SePRACH), to access a cell that operates in the unlicensed radio frequency spectrum band. The response message is received in response to transmitting the request message, and the request message may be transmitted irrespective of whether a base station has gained access to the unlicensed radio frequency spectrum band. Moreover, system information provides information necessary for the UE to identify which subframe is assigned to random access, and during which first subset of symbols in the subframe the UE shall perform a Listen-Before Talk, LBT, procedure, and only when the spectrum band is considered not to be in use, then perform conventional random access in an ensuing second subset of symbols of the subframe.

    Techniques for configuring reference signals in low latency wireless communications
    17.
    发明专利
    Techniques for configuring reference signals in low latency wireless communications 未知

    公开(公告)号：AU2016391628B2

    公开(公告)日：2019-05-16

    申请号：AU2016391628

    申请日：2016-12-12

    Applicant: QUALCOMM INC

    Inventor： PATEL SHIMMAN ARVIND ,  CHEN WANSHI

    IPC: H04L5/00 ,  H04W72/12 ,  H04W72/14

    Abstract: Various aspects described herein relate to determining a configuration of reference signal (RS) resources in wireless communications. A scheduling grant of resources can be received from an access point, wherein the scheduling grant indicates one or more parameters related to transmission locations of one or more RSs. RS resource locations can be determined for the one or more RSs based at least in part on the one or more parameters. The one or more RSs can be received over the RS resource locations allowing for decimation of the RSs in time and/or frequency.

    DYNAMIC TIME DIVISION DUPLEXING
    18.
    发明专利
    DYNAMIC TIME DIVISION DUPLEXING 未知

    公开(公告)号：SG11201901252QA

    公开(公告)日：2019-04-29

    申请号：SG11201901252Q

    申请日：2017-09-15

    Applicant: QUALCOMM INC

    Inventor： HOSSEINI SEYEDKIANOUSH ,  CHEN WANSHI ,  GAAL PETER ,  SUN JING ,  PATEL SHIMMAN ARVIND

    IPC: H04L5/00

    Abstract: Methods, systems, and devices for wireless communication are described. A base station may allocate resources for communication with a user equipment (UE). The resources may include one or more subframes, and each subframe may include one or more shortened transmission time intervals (sTTIs). Each sTTI may be assigned a transmission direction according to a time division duplex (TDD) pattern. Based on traffic needs and/or interference from other UEs and/or base stations, the base station may determine to modify the TDD pattern used for communication. Accordingly, a base station may transmit an indicator in a control message or control region of a TTI or sTTI, to indicate to users that a transmission direction of an sTTI in the TDD pattern is being changed. Subsequently, a user may communicate with the base station according to the reconfigured TDD pattern.

    Low latency physical downlink control channel and physical downlink shared channel
    19.
    发明专利
    Low latency physical downlink control channel and physical downlink shared channel 未知

    公开(公告)号：AU2017311316A1

    公开(公告)日：2019-01-24

    申请号：AU2017311316

    申请日：2017-08-09

    Applicant: QUALCOMM INC

    Inventor： SUN JING ,  CHEN WANSHI ,  GAAL PETER ,  PATEL SHIMMAN ARVIND ,  HOSSEINI SEYEDKIANOUSH ,  XU HAO

    IPC: H04L5/00

    Abstract: Methods, systems, and devices for wireless communication are described. A base station may indicate time and frequency resources for a low latency physical downlink control channel (sPDCCH), which may be different from another physical downlink control channel (PDCCH), to a user equipment (UE). The base station may then transmit a common sPDCCH (CsPDCCH) message to indicate which low latency control channel elements (sCCEs) are used for sPDCCH transmission during a given subframe. In some cases, the signaling used to indicate the initial resource allocation for sPDCCH may be infrequent relative to the CsPDCCH transmissions. If some of the resources initially allocated for sPDCCH are not actually used for sPDCCH during a subframe, the base station and the UE may use those resources for communicating data. For example, the base station may transmit data using a low latency physical downlink shared channel (sPDSCH) to the UE using those resources.

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