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    Polar code interleaving and bit selection
    101.
    发明授权
    Polar code interleaving and bit selection 有权

    公开(公告)号：US10979081B2

    公开(公告)日：2021-04-13

    申请号：US16550485

    申请日：2019-08-26

    Applicant: MEDIATEK INC.

    Inventor： Wei-De Wu ,  Chia-Wei Tai

    IPC: H03M13/27 ,  H03M13/00 ,  H04L1/00 ,  H03M13/13

    Abstract: Apparatus and methods are provided for polar code sub-block interleaving and bit selection. In one novel aspect, middle-part interlaced sub-block interleaving is provided for polar code interleaving. In one embodiment, the middle part of the polar code is interlaced and generates the interleaved polar code. In another embodiment, the lower part and the upper part are also sub-block interleaved with the middle-part interlaced method. In another novel, rate-dependent unified bit selection is provided. The bit selection is categorized into three operation categories of repetition, puncturing and the shortening. Each category follows unified bit selection rule with different categories differ only in the access scheme. In one embodiment, the circular buffer is used for bit selection.

    Polar bit allocation for partial content extraction
    103.
    发明授权
    Polar bit allocation for partial content extraction 有权

    公开(公告)号：US10925032B2

    公开(公告)日：2021-02-16

    申请号：US16149914

    申请日：2018-10-02

    Applicant: MEDIATEK INC.

    Inventor： Wei-De Wu ,  Chia-Wei Tai ,  Yen-Cheng Liu

    IPC: H04W72/00 ,  H04L1/00 ,  H04L27/26 ,  H04H60/00 ,  H04W48/10 ,  H04L25/00 ,  H04W52/00

    Abstract: Aspects of the disclosure provide a method and device performing input bit allocation that includes receiving broadcasting information bits, generating timing related bits for the broadcasting information bits, and selecting a portion of the generated timing related bits. The method and device can further include allocating each of the selected timing related bits to selected input bits of an encoder, so that each of the selected timing related bits is allocated to an input bit of the encoder corresponding to an available bit channel of the encoder where the selected inputs bits of the encoder correspond to encoded bits that are located in a front portion of the encoded bits.

    Triggering adaptation mechanisms for UE power-saving
    104.
    发明授权
    Triggering adaptation mechanisms for UE power-saving 有权

    公开(公告)号：US10856227B2

    公开(公告)日：2020-12-01

    申请号：US16583476

    申请日：2019-09-26

    Applicant: Mediatek Inc.

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

    IPC: H04W52/02 ,  H04W76/28

    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE attempts to detect a trigger event. The UE determines values of a first set of power configuration parameters when the trigger event is detected, wherein a change in a value of each power configuration parameter in the first set of power configuration parameters affects power consumption of the first UE. The UE transmits or receives signals in accordance with the values of the first set of power configuration parameters.

    WAKE-UP SIGNAL OPERATION FOR UE POWER SAVING
    105.
    发明申请
    WAKE-UP SIGNAL OPERATION FOR UE POWER SAVING 审中-公开

    公开(公告)号：US20200037247A1

    公开(公告)日：2020-01-30

    申请号：US16520537

    申请日：2019-07-24

    Applicant: Mediatek Inc.

    Inventor： Yiju Liao ,  Xiu-Sheng Li ,  Wei-De Wu ,  Chien Hwa Hwang

    IPC: H04W52/02 ,  H04W72/04

    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE attempts to detect a wake-up signal transmitted from a base station and directed to the UE prior to an ON duration in a discontinuous reception (DRX) cycle in Radio Resource Control (RRC) connected mode. The UE refrains from monitoring a down link control channel during the ON duration when the wake-up signal does not trigger the UE to monitor a down link control channel in the ON duration.

    Polar Code Interleaving and Bit Selection
    106.
    发明申请
    Polar Code Interleaving and Bit Selection 审中-公开

    公开(公告)号：US20200014405A1

    公开(公告)日：2020-01-09

    申请号：US16550485

    申请日：2019-08-26

    Applicant: MEDIATEK INC.

    Inventor： Wei-De Wu ,  Chia-Wei Tai

    IPC: H03M13/27 ,  H03M13/00 ,  H04L1/00 ,  H03M13/13

    Abstract: Apparatus and methods are provided for polar code sub-block interleaving and bit selection. In one novel aspect, middle-part interlaced sub-block interleaving is provided for polar code interleaving. In one embodiment, the middle part of the polar code is interlaced and generates the interleaved polar code. In another embodiment, the lower part and the upper part are also sub-block interleaved with the middle-part interlaced method. In another novel, rate-dependent unified bit selection is provided. The bit selection is categorized into three operation categories of repetition, puncturing and the shortening. Each category follows unified bit selection rule with different categories differ only in the access scheme. In one embodiment, the circular buffer is used for bit selection.

    Low complexity rate matching for polar codes
    107.
    发明授权
    Low complexity rate matching for polar codes 有权

    公开(公告)号：US10432234B2

    公开(公告)日：2019-10-01

    申请号：US15653048

    申请日：2017-07-18

    Applicant: MEDIATEK INC.

    Inventor： Wei-De Wu ,  Chia-Wei Tai ,  Mao-Ching Chiu

    IPC: H04B1/04 ,  H04L1/00 ,  H03M13/00 ,  H03M13/13 ,  H03M13/15

    Abstract: Aspects of the disclosure provide polar code rate matching methods. A first method can include determining whether to puncture or shorten a mother polar code according to a mother code rate and/or a rate matched code rate, and selecting K positions in the sequence of N input bits for input of K information bits to a polar encoder according to an offline prepared index list ordered according to the reliabilities of respective synthesized channels. Frozen input bits caused by puncturing or shortening are skipped during the selection. A second method includes generating a mother polar code, rearranging code bits of the mother polar code to form a rearranged sequence that can be stored in a circular buffer, and performing, in a unified way, one of puncturing, shortening, or repetition on the rearranged sequence to obtain a rate matched code.

    TECHNIQUES OF ADDITIONAL BIT FREEZING FOR POLAR CODES WITH RATE MATCHING
    109.
    发明申请
    TECHNIQUES OF ADDITIONAL BIT FREEZING FOR POLAR CODES WITH RATE MATCHING 审中-公开

    公开(公告)号：US20190058548A1

    公开(公告)日：2019-02-21

    申请号：US16105022

    申请日：2018-08-20

    Applicant: Mediatek Inc.

    Inventor： Wei-De Wu ,  Chia-Wei Tai

    IPC: H04L1/00

    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and wireless equipment are provided. The wireless equipment obtains an integer E and an integer N. E encoded bits are to be selected for transmission from N encoded bits output from an encoder. The wireless equipment determines F inputs from N inputs of the encoder based on E and N. The F inputs do not include S inputs that correspond to S outputs of the encoder generating encoded bits not to be transmitted. The wireless equipment sets the F inputs to a predetermined value.

    CHANNEL BIT INTERLEAVER DESIGN FOR POLAR CODING CHAIN
    110.
    发明申请
    CHANNEL BIT INTERLEAVER DESIGN FOR POLAR CODING CHAIN 审中-公开

    公开(公告)号：US20190044544A1

    公开(公告)日：2019-02-07

    申请号：US16055480

    申请日：2018-08-06

    Applicant: Mediatek Inc.

    Inventor： Yiju Liao ,  Wei-De Wu ,  Chia-Wei Tai

    IPC: H03M13/27 ,  H03M13/13 ,  H04L1/00 ,  H04L5/00 ,  H04L1/18

    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and wireless equipment are provided. The wireless equipment interleaves a first sequence of encoded bits output from an encoder and then manipulating the interleaved first sequence of encoded bits to generate a second sequence of encoded bits. The wireless equipment places the second sequence of encoded bits in a buffer. The wireless equipment selects, from the buffer, a first section of the second sequence of encoded bits for transmission. The wireless equipment interleaves the first section of encoded bits. The wireless equipment transmits the interleaved first section of encoded bits via one or more symbols.

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