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    Method and apparatus for determining time-domain resource used for grant-free transmission
    121.
    发明授权
    Method and apparatus for determining time-domain resource used for grant-free transmission 有权

    公开(公告)号：US11515972B2

    公开(公告)日：2022-11-29

    申请号：US16875824

    申请日：2020-05-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiuqiang Xu ,  Yan Chen ,  Liqing Zhang ,  Yi Wang ,  Yinggang Du ,  Yu Cao

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

    Abstract: This application provides a method for determining a time-domain resource used for grant-free transmission. The method includes: obtaining, by a terminal device, a first time-domain period and a second time-domain period of grant-free transmission resources, where a size of the first time-domain period is P1 time units, a size of the second time-domain period is P2 time units, and P1 is greater than or equal to P2; obtaining, by the terminal device, a quantity k of grant-free transmission resources in the first time-domain period; and determining, by the terminal device based on the first time-domain period, the second time-domain period, and the quantity k of grant-free transmission resources in the first time-domain period, an index of a time unit in which a grant-free transmission resource used for grant-free transmission is located. In this way, grant-free transmission resources configured for the terminal device in two adjacent periods do not overlap.

    Systems and methods for user equipment cooperation
    122.
    发明授权
    Systems and methods for user equipment cooperation 有权

    公开(公告)号：US11283566B2

    公开(公告)日：2022-03-22

    申请号：US16743597

    申请日：2020-01-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Hua Xu ,  Jianglei Ma ,  Liqing Zhang

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

    Abstract: Aspects of the present application provide methods and devices for use in User Equipment (UE) cooperation. A packet transmitted between a base station and a UE or between UEs includes a packet destination identifier that identifies a destination of the packet. A receiving the packet from a base station or another UE can determine whether the UE is the destination of the packet. When the UE is the destination of the packet, the UE decodes the packet. When the UE is not the destination of the packet, the UE forwards the packet to another UE. The packet may include a packet source identifier that can be used by the destination to determine where the packet originated. In some instances, the cooperative UEs do not need to decode the entire packet to be able to determine the destination of the packet and therefore can forward the packet along with less processing.

    Methods and systems for numerology determination of wireless communication systems
    125.
    发明授权
    Methods and systems for numerology determination of wireless communication systems 有权

    公开(公告)号：US11082192B2

    公开(公告)日：2021-08-03

    申请号：US16678406

    申请日：2019-11-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Liqing Zhang ,  Hao Tang ,  Xinxian Li ,  Zhenfei Tang

    IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26

    Abstract: A method, system, and device to obtain a basic subcarrier spacing, or a channel bandwidth, or a maximum transmission bandwidth, or a usable subcarrier spacing set via a predefined mapping rule is provided. In an embodiment, a method in a network component to determine a system numerology includes determining, by the network component, one or more subcarrier spacing options from a candidate subcarrier spacing set that is associated with a carrier frequency band. The method also includes transmitting, by the network component, a signal indicating to one or more UEs one or more subcarrier spacing options from the candidate subcarrier spacing set.

    System and Method for Determining a Pilot Signal
    126.
    发明申请
    System and Method for Determining a Pilot Signal 有权

    公开(公告)号：US20210234658A1

    公开(公告)日：2021-07-29

    申请号：US17233243

    申请日：2021-04-16

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhihang Yi ,  Jianglei Ma ,  Liqing Zhang ,  Kelvin Kar Kin Au

    IPC: H04L5/00

    Abstract: A method of configuring a pilot signal includes defining a first pilot signal arrangement and defining a second pilot signal arrangement. Also, the method includes determining, by a communications controller, a first determined pilot signal arrangement in accordance with the first defined pilot signal arrangement, the second defined pilot signal arrangement, and a set of characteristics and transmitting, by the communications controller, the pilot signal having the first determined pilot signal arrangement.

    Timing adjustment free solution to uplink synchronous operations
    127.
    发明授权
    Timing adjustment free solution to uplink synchronous operations 有权

    公开(公告)号：US11050599B2

    公开(公告)日：2021-06-29

    申请号：US15713264

    申请日：2017-09-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Liqing Zhang ,  Malte Schellmann

    IPC: H04L12/00 ,  H04L27/26 ,  H04W56/00 ,  H04W72/04 ,  H04W72/12

    Abstract: Uplink synchronization may be achieved without adjusting for timing advance by using longer/larger cyclic prefix durations to compensate for differences in propagation delays, including the cell round-trip delays and environment based multipath delays. In this way, timing advance reference signaling may be omitted from the uplink transmissions. The cyclic prefix duration may be determined based on a characteristic of a base station's coverage area, such as a coverage area size or coverage area type. For example, a longer cyclic prefix length may be used when a base station has a larger coverage area than when the base station has a smaller coverage area. As another example, a different cyclic prefix length may be used for different coverage types. The method provided in this embodiment improves the capabilities of automatic driving and ADAS of electric vehicles. The method can be applied to vehicle networking, such as V2X, LTE-V, V2X, etc.

    Methods, devices and systems for initial grant-free transmission determination
    128.
    发明授权
    Methods, devices and systems for initial grant-free transmission determination 有权

    公开(公告)号：US10805895B2

    公开(公告)日：2020-10-13

    申请号：US16196342

    申请日：2018-11-20

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Liqing Zhang ,  Yiqun Wu ,  Yan Chen ,  Yi Wang

    IPC: H04W56/00 ,  H04L1/08 ,  H04L1/18 ,  H04W88/06 ,  H04W92/04

    Abstract: In accordance to embodiments, methods, devices, and systems for determining initial transmissions in grant-free transmissions are disclosed. A UE receives a resource configuration for grant-free (GF) transmissions. The resource configuration comprises a periodicity parameter (P), a repetition number (K), and a sequence of redundancy version (RV) numbers corresponding to one or more RV types. The periodicity parameter defines a period having K transmission occasions (TOs), and each of the K TOs is associated with one RV number in the sequence of RV numbers. The UE performs an initial GF transmission of data in a TO of the K TOs in the period defined by the periodicity parameter. The TO is associated with an RV number corresponding to RV0.

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