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    METHODS AND APPARATUS TO REDUCE PACKET LATENCY IN MULTI-LEG TRANSMISSION
    23.
    发明申请
    METHODS AND APPARATUS TO REDUCE PACKET LATENCY IN MULTI-LEG TRANSMISSION 有权

    公开(公告)号：US20220201786A1

    公开(公告)日：2022-06-23

    申请号：US17542407

    申请日：2021-12-04

    Applicant: MEDIATEK INC.

    Inventor： Chun-Fan Tsai ,  Pradeep Jose ,  Chi-Hsuan Hsieh ,  Cheng-Hsun Li ,  Wei-De Wu

    IPC: H04W76/16 ,  H04W76/20 ,  H04L1/16

    Abstract: A method of providing UE-initiated PDCP status report to reduce packet latency under Multi-RAT Dual Connectivity (MR-DC) is proposed. UE initializes PDCP status report based on some predefined condition configured by the network. The PDCP status report indicates which PDCP SDU is still not received by the UE via one radio link control (RLC) entity, and the network can retransmit the missing PDCP SDU via another RLC entity quickly. The network can enable/disable the PDCP status report via PDCP control PDU or via radio resource control (RRC) signaling. The PDCP status can be used for re-transmission of PDCP SDU on another RLC entity. The PDCP status can also be used as an indication of issues on one RLC entity, resulting in duplication being activated thereafter. The PDCP status report should be sent to the RLC entity that does not suffer from the PDCP packet loss.

    Enhancement for paging indication and radio resource management (RRM) measurements for UE power saving in a wireless network
    24.
    发明授权
    Enhancement for paging indication and radio resource management (RRM) measurements for UE power saving in a wireless network 有权

    公开(公告)号：US11102756B2

    公开(公告)日：2021-08-24

    申请号：US16787522

    申请日：2020-02-11

    Applicant: MediaTek Inc.

    Inventor： Chi-Hsuan Hsieh ,  Wei-De Wu ,  Yung-Hsiang Liu

    IPC: H04W68/02 ,  H04W76/27 ,  H04W24/10 ,  H04B17/318 ,  H04W56/00 ,  H04B17/336 ,  H04W76/28

    Abstract: In one aspect, a User Equipment (UE) performs Radio Resource Management (RRM) measurements on downlink signals with a first cycle period equal to the UE's Discontinuous Reception (DRX) cycle period. The RRM measurements cycle period is lengthened when UE detects that a signal quality measurement of the primary cell is greater than the sum of a positive offset and a signal quality measurement of a neighboring cell having the best signal quality among all of UE's neighboring cells. In another aspect, a UE de-multiplexes a paging indication which precedes a Synchronization Signal Block (SSB) in time and is generated using the same sequence generation formula as that for generating a Secondary Synchronization Signal (SSS) in the SSB. From the de-multiplexed paging indication, the UE detects that it is paged for message reception and wakes up to receive the message in a next data reception period of the UE's DRX cycle.

    Method And Apparatus For Network Energy Saving With Spatial Element Adaptation In Mobile Communications
    25.
    发明公开
    Method And Apparatus For Network Energy Saving With Spatial Element Adaptation In Mobile Communications 审中-公开

    公开(公告)号：US20240284235A1

    公开(公告)日：2024-08-22

    申请号：US18391685

    申请日：2023-12-21

    Applicant: MediaTek Inc.

    Inventor： Chi-Hsuan Hsieh

    IPC: H04W28/02 ,  H04B7/06 ,  H04W24/10

    CPC classification number: H04W28/0221 ,  H04B7/0626 ,  H04W24/10

    Abstract: Examples pertaining to network energy saving with spatial element adaptation in mobile communications are described. A user equipment (UE) transmits a first measurement report of a channel state information-reference signal (CSI-RS) based on a first indication from the network apparatus, and transmits a second measurement report of the CSI-RS based on a second indication from the network apparatus. A number of antenna elements of the network apparatus associated with the first measurement report is less than a number of antenna elements of the network apparatus associated with the second measurement report.

    Adaptation framework for UE power saving
    27.
    发明授权
    Adaptation framework for UE power saving 有权

    公开(公告)号：US11659430B2

    公开(公告)日：2023-05-23

    申请号：US17739047

    申请日：2022-05-06

    Applicant: MEDIATEK INC.

    Inventor： Chien-Hwa Hwang ,  Wei-De Wu ,  Yiju Liao ,  Cheng-Hsun Li ,  Chi-Hsuan Hsieh

    IPC: H04W28/02 ,  H04W52/02 ,  H04W36/00 ,  H04L5/00 ,  H04W72/51

    CPC classification number: H04W28/0221 ,  H04L5/0032 ,  H04W36/0069 ,  H04W52/0216 ,  H04W72/51

    Abstract: A method of UE power profile adaptation to traffic and UE power consumption characteristics based on power profile is proposed. In one preferred embodiment, hybrid of bandwidth part (BWP) and power profile is proposed. UE is configured with multiple BWPs and each BWP includes a set of power profiles. Two types of adaptation triggering can be used, a first type of trigger is based on power saving signals sent from the network, and the second type of trigger is based on timers. When the traffic characteristic for UE changes, the network can send a power saving signal to UE to trigger power profile adaptation, e.g., BWP+power profile switching. When traffic has been digested and becomes sporadic, then power profile adaptation can be triggered based on timers, e.g., a timer for BWP adaptation and another timer for power profile adaptation.

    Techniques of reducing SCell activation delay
    28.
    发明授权
    Techniques of reducing SCell activation delay 有权

    公开(公告)号：US11533149B2

    公开(公告)日：2022-12-20

    申请号：US17761260

    申请日：2020-09-30

    Applicant: MEDIATEK INC.

    Inventor： Chi-Hsuan Hsieh ,  Chiao-Yao Chuang ,  Din-Hwa Huang

    IPC: H04L5/00 ,  H04W72/12

    Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, on a primary cell, an activation command from a base station for activating a secondary cell between the UE and the base station. The UE receives scheduling information of a set of aperiodic TRSs. The UE receives a trigger indicating transmission of the set of aperiodic TRSs. The UE initiates a RF chain of the UE configured for the secondary cell in an interruption period. The UE receives, in response to receiving the trigger and in accordance with the scheduling information, the set of aperiodic TRSs on the secondary cell prior to receiving an initial SSB or an initial periodic TRS after the interruption period. The UE performs time and frequency tracking on the secondary cell based on the set of aperiodic TRSs.

    Activated secondary cells transition between dormancy behavior and active behavior in 5G NR system
    29.
    发明授权
    Activated secondary cells transition between dormancy behavior and active behavior in 5G NR system 有权

    公开(公告)号：US11463227B2

    公开(公告)日：2022-10-04

    申请号：US16942187

    申请日：2020-07-29

    Applicant: MEDIATEK INC.

    Inventor： Chi-Hsuan Hsieh ,  Wei-De Wu ,  Pei-Kai Liao

    IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04

    Abstract: Aspects of the disclosure provide a method and an apparatus for transitioning one or a plurality of activated secondary cells (SCells) between a dormancy behavior and an active behavior. For example, the apparatus can include receiving circuitry and processing circuitry. The receiving circuitry can be configured to receive a configuration indicating a number of SCell groups each including at least one of the SCells, and an indication of at least one of the SCell groups to be transitioned between the dormancy behavior and the active behavior. The processing circuitry can be configured to transition the at least one SCell of the at least one SCell group between the dormancy behavior and the active behavior.

    Uplink power control and time-division multiplexing patterns for dual active protocol stack based handover
    30.
    发明授权
    Uplink power control and time-division multiplexing patterns for dual active protocol stack based handover 有权

    公开(公告)号：US11284359B2

    公开(公告)日：2022-03-22

    申请号：US16832935

    申请日：2020-03-27

    Applicant: MEDIATEK INC.

    Inventor： Chi-Hsuan Hsieh ,  Wei-De Wu

    IPC: H04W52/40 ,  H04W36/08 ,  H04W52/36 ,  H04W52/14 ,  H04W36/18

    Abstract: Aspects of the disclosure further provide various apparatuses and methods for wireless communications. One apparatus includes processing circuitry that can determine a first transmission power for a first uplink transmission associated with the source cell and a second transmission power for a second uplink transmission associated with the target cell. When the first uplink transmission and the second uplink transmission overlap in time domain and a total power of the first transmission power and the second transmission power is above a first threshold, the processing circuitry reduces the first transmission power for the first uplink transmission to a third transmission power so that a total power of the second transmission power and the third transmission power is equal to or less than the first threshold. The processing circuitry performs the first uplink transmission at the third transmission power and the second uplink transmission at the second transmission power.

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