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    Systems and methods for grant-free uplink transmissions
    2.
    发明授权
    Systems and methods for grant-free uplink transmissions 有权

    公开(公告)号：US11576199B2

    公开(公告)日：2023-02-07

    申请号：US17473325

    申请日：2021-09-13

    申请人： Jianglei Ma ,  Liqing Zhang ,  Yu Cao

    发明人： Jianglei Ma ,  Liqing Zhang ,  Yu Cao

    IPC分类号： H04W72/12 ,  H04W72/04 ,  H04L1/18 ,  H04W72/14

    摘要： Systems and methods are disclosed for performing combined grant-free and grant-based UL resource allocation. In a particular embodiment, a network entity sends a first type of UL transmission resource assignment selected from two types of UL transmission resource assignment mechanisms to a UE for grant-free transmission and a second type of UL transmission resource assignment from two types of UL transmission resource assignment mechanism to a UE for grant based transmission. The network entity then receives a first data transmission from the UE for grant free transmission using an assigned transmission resource and a second data transmission from the UE for grant based transmission using an assigned transmission resources. Other embodiments pertain to changing the resource allocation scheme from grant free to grant based for a UE, or vice versa. Examples reasons for doing so may include HARQ re-transmissions.

    System and method for transmission in a grant-free uplink transmission scheme
    5.
    发明授权
    System and method for transmission in a grant-free uplink transmission scheme 有权

    公开(公告)号：US10721776B2

    公开(公告)日：2020-07-21

    申请号：US15989810

    申请日：2018-05-25

    申请人： Kelvin Kar Kin Au ,  Liqing Zhang ,  Jianglei Ma

    发明人： Kelvin Kar Kin Au ,  Liqing Zhang ,  Jianglei Ma

    IPC分类号： H04W74/08 ,  H04W72/04 ,  H04L1/18

    摘要： A system and method includes implementing, by a base station (BS), a reliable ultra-low latency transmission mechanism in a grant-free uplink transmission scheme having defined therein contention transmission unit (CTU) access regions and a plurality of CTUs. Implementing the reliable ultra-low latency transmission mechanism includes defining a reliable ultra-low latency CTU (RULL-CTU) access region from a portion of the CTU access regions of the grant-free transmission scheme, defining an RULL-CTU mapping scheme by mapping at least a portion of plurality of CTUs to the RULL-CTU access region to define a plurality of RULL-CTUs, defining a reliable ultra-low latency user equipment (RULL-UE) mapping scheme by defining rules for mapping a plurality of RULL-UEs to the plurality of RULL-CTUs in an initial pattern for initial transmissions in a first transmission time interval (TTI), and a regrouped pattern for redundant transmissions in a second TTI subsequent to the first TTI.

    System and method for transmission in a grant-free uplink transmission scheme
    8.
    发明授权
    System and method for transmission in a grant-free uplink transmission scheme 有权

    公开(公告)号：US09750056B2

    公开(公告)日：2017-08-29

    申请号：US14606665

    申请日：2015-01-27

    申请人： Kelvin Kar Kin Au ,  Liqing Zhang ,  Jianglei Ma

    发明人： Kelvin Kar Kin Au ,  Liqing Zhang ,  Jianglei Ma

    IPC分类号： H04J3/00 ,  H04W74/08 ,  H04W72/04 ,  H04L1/18

    CPC分类号： H04W74/0841 ,  H04L1/1861 ,  H04W72/04

    摘要： A system and method includes implementing, by a base station (BS), a reliable ultra-low latency transmission mechanism in a grant-free uplink transmission scheme having defined therein contention transmission unit (CTU) access regions and a plurality of CTUs. Implementing the reliable ultra-low latency transmission mechanism includes defining a reliable ultra-low latency CTU (RULL-CTU) access region from a portion of the CTU access regions of the grant-free transmission scheme, defining an RULL-CTU mapping scheme by mapping at least a portion of plurality of CTUs to the RULL-CTU access region to define a plurality of RULL-CTUs, defining a reliable ultra-low latency user equipment (RULL-UE) mapping scheme by defining rules for mapping a plurality of RULL-UEs to the plurality of RULL-CTUs in an initial pattern for initial transmissions in a first transmission time interval (TTI), and a regrouped pattern for redundant transmissions in a second TTI subsequent to the first TTI.

    System and method for self-organized inter-cell interference coordination
    9.
    发明授权
    System and method for self-organized inter-cell interference coordination 有权
    用于自组织干细胞间干扰协调的系统和方法

    公开(公告)号：US09585024B2

    公开(公告)日：2017-02-28

    申请号：US13106598

    申请日：2011-05-12

    申请人： Liqing Zhang ,  Jianglei Ma ,  Zhijun Chao

    发明人： Liqing Zhang ,  Jianglei Ma ,  Zhijun Chao

    IPC分类号： H04W28/02 ,  H04W16/14 ,  H04W24/10 ,  H04W72/04 ,  H04W72/08 ,  H04W92/12

    CPC分类号： H04W16/14 ,  H04W24/10 ,  H04W72/0433 ,  H04W72/082 ,  H04W92/12

    摘要： A system and method for self-organized inter-cell interference coordination are provided. A method for controller operations includes receiving signal power measurements at a controller, determining an interference level based on the signal power measurements, generating relationship information based on the interference level, and determining frequency reuse modes for communications controllers controlled by the controller based on the relationship information.

    摘要翻译： 提供了一种用于自组织小区间干扰协调的系统和方法。 一种用于控制器操作的方法包括在控制器处接收信号功率测量，基于信号功率测量确定干扰电平，基于干扰电平产生关系信息，以及基于该关系确定由控制器控制的通信控制器的频率重用模式 信息。

    System and Method for Automatic Fractional Frequency Reuse Planning
    10.
    发明申请
    System and Method for Automatic Fractional Frequency Reuse Planning 有权
    自动分数频率再利用规划的系统与方法

    公开(公告)号：US20120028664A1

    公开(公告)日：2012-02-02

    申请号：US13118239

    申请日：2011-05-27

    申请人： Liqing Zhang ,  Jianglei Ma ,  Zhijun Chao

    发明人： Liqing Zhang ,  Jianglei Ma ,  Zhijun Chao

    IPC分类号： H04W72/04

    CPC分类号： H04W16/14 ,  H04W24/10 ,  H04W72/0433 ,  H04W72/082 ,  H04W92/12

    摘要： A system and method for automatic fractional frequency reuse (FFR) planning are provided. A method for controller operations includes determining a group of frequency reuse modes, assigning at least one frequency reuse mode to a controller based on mutual relationship information, where the at least one frequency reuse mode is from the group of frequency reuse modes, and sharing the at least one frequency reuse mode with communications controllers coupled to the controller.

    摘要翻译： 提供了一种用于自动分数频率复用（FFR）规划的系统和方法。 一种用于控制器操作的方法包括：确定一组频率复用模式，基于相互关系信息将至少一个频率复用模式分配给控制器，其中所述至少一个频率复用模式来自所述频率复用模式组，并且共享 具有耦合到控制器的通信控制器的至少一个频率重用模式。