Jitter control with hybrid automatic repeat request process

    公开(公告)号:US12074715B2

    公开(公告)日:2024-08-27

    申请号:US18033116

    申请日:2020-10-21

    CPC classification number: H04L1/1835 H04L1/1864

    Abstract: Various example embodiments provide efficient jitter control by means of a hybrid automatic repeat request (HARQ) process. Abase station may transmit to a UE a forwarding time parameter for data packet(s) associated with a HARQ process. The UE 110 may store the data packet(s) in a HARQ buffer and determine to hold the data packet(s) in the HARQ buffer until a delivery time determined based on the forwarding time parameter. Once the delivery time has been reached, the UE may forward the data packets to higher protocol layers. This enables efficient jitter control of a data packet flow. Apparatuses, methods, and computer programs are disclosed.

    Triggered hybrid automatic repeat request acknowledgement reporting for downlink semi-persistent scheduling data transmission

    公开(公告)号:US11985681B2

    公开(公告)日:2024-05-14

    申请号:US17361863

    申请日:2021-06-29

    CPC classification number: H04W72/23 H04L1/1812

    Abstract: A method may include receiving, by a user equipment from a network entity, a first downlink (DL) control signal activating semi-persistent scheduling (SPS) of a first set of downlink data transmissions, the downlink control signal indicating an applicable hybrid automatic repeat request (HARQ) feedback timing for the first set of downlink data transmissions and receiving one or more of the first set of downlink data transmissions. The user equipment may determine that an applicable HARQ feedback timing for a second set of downlink data transmission previously received with an inapplicable HARQ feedback timing has not been provided. In response to the determination, the user equipment may determine a HARQ feedback timing for the one or more of the first set of downlink data transmissions based a second DL control signal indicating an applicable HARQ feedback timing received after reception of the one or more of the first set of downlink data transmissions.

    Signaling arrangement for wireless system

    公开(公告)号:US11303403B2

    公开(公告)日:2022-04-12

    申请号:US14451613

    申请日:2014-08-05

    Abstract: Systems, methods, apparatuses, and computer program products for a signaling arrangement for a wireless system are provided. One method includes transmitting a short control signaling (SCS) message to one or more user equipment (UE). The SCS message may comprise at least a reference signal part and an optional control signal part. The reference signal part may comprise reference signals that allow the UE to perform at least one of: cell search, synchronization, fine time/frequency tracking, radio resource management (RRM) measurements, radio link monitoring, or channel state information (CSI) reporting. In an embodiment, the control signal part may indicate at least one of: whether the cell is ON or OFF, whether each subframe in a current or upcoming set of subframes are ON or OFF, TDD uplink-downlink configuration for a current or upcoming radio frame, PLMN ID to identify to which operator's network the cell belongs to, and/or system information.

    Aperiodic channel state information (CSI) reporting for enhanced carrier aggregation

    公开(公告)号:US10812217B2

    公开(公告)日:2020-10-20

    申请号:US15544245

    申请日:2016-01-21

    Abstract: Systems, methods, apparatuses, and computer program products for aperiodic channel state information (CSI) reporting for enhanced carrier aggregation are provided. One method includes transmitting, by a network node, a configuration of at least two aperiodic channel state information (A-CSI) reporting modes per one or more configured downlink (DL) component carriers (CC) to at least one user equipment. The method may also include transmitting an aperiodic channel state information (A-CSI) trigger to the at least one user equipment. The transmitting of the A-CSI trigger may cause the at least one user equipment to dynamically switch between the two configured aperiodic channel state information (A-CSI) reporting modes.

    FEEDBACK TIMING
    47.
    发明申请
    FEEDBACK TIMING 审中-公开

    公开(公告)号:US20200304248A1

    公开(公告)日:2020-09-24

    申请号:US16088138

    申请日:2017-01-30

    Abstract: There is provided a method, comprising: detecting (200) that data from a transmitting device is scheduled to the apparatus; determining (210) a transmission time interval length applied in the transmission of the scheduled data to the apparatus; and selecting (220), at least partially based on the determined transmission time interval length, an acknowledgement feedback mode to be used for sending acknowledgment feedback for the scheduled data amongst a plurality of acknowledgement feed-back modes, wherein the selected acknowledgement feedback mode defines acknowledgement feedback timing.

    Methods and apparatuses for dynamic transmit diversity fallback

    公开(公告)号:US10778293B2

    公开(公告)日:2020-09-15

    申请号:US16276058

    申请日:2019-02-14

    Abstract: Systems, methods, apparatuses, and computer program products for dynamic transmit diversity fallback are provided. One method may include configuring a user equipment with a maximum number of multiple-input multiple-output (MIMO) layers used for transmission mode 9 or transmission mode 10 scheduling, and performing, by a network node, at least one of transmission mode 9 or transmission mode 10 scheduling. The configuring may include indicating to the user equipment to use a modified mapping table providing transmit diversity fallback for the at least one of transmission mode 9 or transmission mode 10 scheduling.

    Method and apparatus for performing hybrid automatic repeat request processes

    公开(公告)号:US10587370B2

    公开(公告)日:2020-03-10

    申请号:US15489200

    申请日:2017-04-17

    Abstract: A method and apparatus may include receiving an uplink grant in a specific subframe of a frame and/or a physical hybrid-ARQ indicator channel transmission, for a physical-uplink-shared-channel transmission or retransmission on a special subframe. The method may also include determining that the uplink grant validates transmitting a physical-uplink-shared-channel transmission on the special subframe, or that the physical hybrid-ARQ indicator channel transmission validates transmitting a physical-uplink-shared-channel retransmission on the special subframe. The method may also include determining transmission parameters for transmitting the physical-uplink-shared-channel transmission or retransmission. The method may also include transmitting the physical-uplink-shared-channel transmission or retransmission on the special subframe.

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