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    CONSTRUCTION OF CHANNEL ORDERING FOR POLAR CODE
    37.
    发明申请
    CONSTRUCTION OF CHANNEL ORDERING FOR POLAR CODE 审中-公开

    公开(公告)号：WO2019028169A1

    公开(公告)日：2019-02-07

    申请号：PCT/US2018/044860

    申请日：2018-08-01

    Applicant: QUALCOMM INCORPORATED

    Inventor： JIANG, Jing ,  SARKIS, Gabi ,  YANG, Yang ,  GAAL, Peter ,  SORIAGA, Joseph Binamira ,  KUDEKAR, Shrinivas

    IPC: H03M13/13 ,  H03M13/35

    Abstract: A wireless device (e.g., a base station or user equipment (UE)) may encode a codeword using a polar code for transmission over a wireless channel. The device may identify a set of bit locations of the polar code for a set of information bits based on a bit index reliability sequence. The bit index reliability sequence may be based on applying an ordered combination of a universal partial order, an analytical method, and a simulation. The bit index reliability sequence may be determined based on a binary bit weighting for the set of bit channels that applies one or more weighting factors. In some cases, the device may store the bit index reliability sequence in a lookup table for encoding, decoding, or both. A device receiving the transmitted codeword may similarly utilize the bit index reliability sequence to decode the codeword and determine the transmitted information bits.

    ENCODING AND DECODING OF QC-LDPC CODES WITH PAIRWISE ORTHOGONALITY OF ADJACENT ROWS IN THEIR BASE MATRICES
    39.
    发明申请
    ENCODING AND DECODING OF QC-LDPC CODES WITH PAIRWISE ORTHOGONALITY OF ADJACENT ROWS IN THEIR BASE MATRICES 审中-公开

    公开(公告)号：WO2018227133A1

    公开(公告)日：2018-12-13

    申请号：PCT/US2018/036726

    申请日：2018-06-08

    Applicant: QUALCOMM INCORPORATED

    Inventor： RICHARDSON, Thomas ,  SORIAGA, Joseph Binamira ,  KUDEKAR, Shrinivas ,  SARKIS, Gabi

    IPC: H03M13/11

    Abstract: Certain aspects of the present disclosure provide quasi-cyclic low-density parity-check (QC-LDPC) codes having pairwise orthogonality of adjacent rows of the corresponding base matrices, and a new decoder (e.g. layered decoder) that exploits the pairwise row orthogonality for flexible decoder scheduling without performance loss, for example by decoding sequentially row by row in the base matrix or by decoding the pairs of orthogonal rows in the base matrix at a time. An apparatus includes a receiver configured to receive a codeword in accordance with a radio technology across a wireless channel via one or more antenna elements situated proximal the receiver. The apparatus includes at least one processor coupled with a memory and comprising decoder circuitry configured to decode the codeword based on a QC-LDPC code to produce a set of information bits. The LDPC code is stored in the memory and defined by a base matrix having columns in which all adjacent rows are orthogonal in a last portion of the rows.

    TIMING ADVANCE GROUP FOR NEW RADIO
    40.
    发明申请
    TIMING ADVANCE GROUP FOR NEW RADIO 审中-公开

    公开(公告)号：WO2018223088A1

    公开(公告)日：2018-12-06

    申请号：PCT/US2018/035734

    申请日：2018-06-01

    Applicant: QUALCOMM INCORPORATED

    Inventor： WANG, Renqiu ,  CHEN, Wanshi ,  AMINZADEH GOHARI, Amir ,  SORIAGA, Joseph Binamira ,  GOROKHOV, Alexei ,  XU, Hao ,  JI, Tingfang

    IPC: H04L5/00 ,  H04W56/00

    Abstract: Aspects of the disclosure relate to communication systems, apparatus and methods which enable or support configuring timing advance in a radio access network. The method includes defining a timing advance configuration for a radio access network that employs a modulation scheme with scalable numerology, determining timing advance parameters consistent with the timing advance configuration for a user equipment (UE) that is in communication with the radio access network, and transmitting the timing advance parameters to the UE during an initial access procedure involving the UE or while the UE is in a connected state in the radio access network. The timing advance configuration may be defined to accommodate a numerology used by the radio access network.

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