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    Search space design for control channel in wireless communication
    154.
    发明授权
    Search space design for control channel in wireless communication 有权

    公开(公告)号：US11617169B2

    公开(公告)日：2023-03-28

    申请号：US17035596

    申请日：2020-09-28

    Applicant: QUALCOMM Incorporated

    Inventor： Yang Yang ,  Tao Luo ,  Peter Pui Lok Ang ,  Jing Jiang

    IPC: H04W72/04 ,  H04L5/00

    Abstract: Aspects of the present disclosure provide various flexible search space designs that can handle UEs with various capabilities and limitations. In some aspects of the disclosure, the downlink bandwidth may be divided into several self-contained sub-bands. Each sub-band may include one or more OFDM subcarriers or tones, and each UE may be configured to monitor one or more of the sub-bands for its downlink control channel. The sub-band is self-contained in such a way that each sub-band includes CCEs that are mapped to resource elements contained in the same sub-band. In some aspects of the disclosure, different sub-bands can be configured with the different transmission modes and pilot densities. The transmission mode, pilot density, and layer-ID may be determined as a function of each UE's search space.

    ADAPTIVE SCALABLE NUMEROLOGY FOR HIGH SPEED TRAIN SCENARIOS
    155.
    发明申请
    ADAPTIVE SCALABLE NUMEROLOGY FOR HIGH SPEED TRAIN SCENARIOS 有权

    公开(公告)号：US20230015699A1

    公开(公告)日：2023-01-19

    申请号：US17935427

    申请日：2022-09-26

    Applicant: QUALCOMM Incorporated

    Inventor： Alexandros Manolakos ,  Jing Jiang ,  June Namgoong ,  Joseph Binamira Soriaga ,  Tingfang Ji

    IPC: H04L41/0896 ,  H04L1/00 ,  H04L27/26 ,  H04W64/00 ,  H04W72/00

    Abstract: The present disclosure provides for adaptive resource management in new radio operations that adapts a numerology including a subcarrier spacing and/or cyclic prefix for a user equipment (UE) traveling at a high speed. A base station may transmit via a plurality of remote radio heads (RRH) to a user equipment (UE) is moving along a high speed track. The base station may transmit, in a first time period, using a first numerology including a first subcarrier spacing and a first cyclic prefix ratio, a first transmission for the UE. The base station may transmit, in a subsequent time period, using a second numerology including a second subcarrier spacing and a second cyclic prefix ratio, a second transmission for the UE. At least one of the second subcarrier spacing is different than the first subcarrier spacing or the second cyclic prefix ratio is different than the first cyclic prefix ratio.

    Out-of-order processing
    156.
    发明授权
    Out-of-order processing 有权

    公开(公告)号：US11558864B2

    公开(公告)日：2023-01-17

    申请号：US16790716

    申请日：2020-02-13

    Applicant: QUALCOMM Incorporated

    Inventor： Seyedkianoush Hosseini ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Yi Huang ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Amir Aminzadeh Gohari ,  Aamod Khandekar

    IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18

    Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. Techniques are described herein for performing out-of-order processing. The UE may receive a first downlink channel at a first time and a second downlink channel at a second time. The UE may determine that a priority of the second downlink channel is different (e.g., higher) than a priority of the first downlink channel. The UE may determine that a first uplink transmission associated with the first downlink channel is to be transmitted after a second uplink transmission associated with the second channel based on the different priorities. The UE may set one or more operations based on these determinations. In some cases, the UE may suspend processing the of the first downlink channel to process the second downlink channel.

    Circular buffer based hybrid automatic retransmission request for polar codes
    157.
    发明授权
    Circular buffer based hybrid automatic retransmission request for polar codes 有权

    公开(公告)号：US11539456B2

    公开(公告)日：2022-12-27

    申请号：US16759255

    申请日：2018-11-20

    Applicant: QUALCOMM Incorporated

    Inventor： Changlong Xu ,  Kai Chen ,  Jing Jiang ,  Gabi Sarkis ,  Hao Xu

    IPC: H04L1/18 ,  H04L1/00 ,  H04L1/08

    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining a target coding rate, RT, for transmitting a group of K information bits, based on a first coding rate, R1, corresponding to a first target block error rate (BLER) for a first transmission of a first redundancy version (RV) of the packet and a second coding rate, R2, corresponding to a second target BLER for a last transmission of a last RV of the packet; determining a circular buffer size, N, of a circular buffer for use in transmitting the first RV and the last RV of the packet; generating encoded information bits from the K information bits using a polar code having a mother code size of N; writing the encoded information bits to the circular buffer; determining a maximum number of retransmissions, based on a latency requirement for the packet; generating different RVs from the encoded information bits in the circular buffer, each RV based on a corresponding target BLER; and transmitting the first RV via a wireless medium.

    Fountain harq for reliable low latency communication
    159.
    发明授权
    Fountain harq for reliable low latency communication 有权

    公开(公告)号：US11489646B2

    公开(公告)日：2022-11-01

    申请号：US16456876

    申请日：2019-06-28

    Applicant: Qualcomm Incorporated

    Inventor： Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Kambiz Azarian Yazdi ,  Krishna Kiran Mukkavilli ,  John Edward Smee

    IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/00 ,  H04L1/16 ,  H04L5/14

    Abstract: Methods, systems, and devices are described for fountain hybrid automatic repeat request (HARD) for reliable low latency communication. A wireless device may transmit a data block based on a low latency operational mode. The device may then transmit a number of redundancy versions of the data block prior to determining whether an acknowledgement (ACK) has been received. In some examples the ACK may be an augmented ACK, which may be based on the number of redundancy versions received prior to successfully decoding the data block, and which may include an additional resource request. In some examples, the device may select an updated modulation and coding scheme (MCS) based on the augmented ACK. In some examples, the device may increase a number of frequency resources (e.g., component carriers) used for transmission based on the augmented ACK.

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