Methods for configurable non-orthogonal multiple access transmission

    公开(公告)号:US10447518B2

    公开(公告)日:2019-10-15

    申请号:US15844015

    申请日:2017-12-15

    摘要: Aspects of the present disclosure provide a scheme for generating a multiple access (MA) signal that include mapping each of at least one stream of bits to generate a set of modulated symbols and transmitting the set of modulated symbols. The spreading signatures that are selected to map the at least one stream of bits are selected, at least in part, based on a set of compatibility rules. The spreading involves mapping each stream of bits using a respective spreading signature from a set of spreading signatures to generate a respective set of modulated symbols, wherein real spreading signature components of the spreading signatures are orthogonal to each other and imaginary spreading signature components of the spreading signatures are orthogonal to each other.

    Apparatus and method for transmitting data with conditional zero padding

    公开(公告)号:US10243763B2

    公开(公告)日:2019-03-26

    申请号:US15468726

    申请日:2017-03-24

    IPC分类号: H04L25/03 H04L27/26 H04L25/02

    摘要: An apparatus and method for transmitting data with conditional zero padding is provided. In accordance with an embodiment of the disclosure, a transmitter transmits data to a receiver by transmitting symbols such that each symbol is preceded by a cyclic prefix of a fixed length and the symbol conditionally includes enough zero padding to avoid ISI (Inter-Symbol Interference) between consecutive symbols. In some implementations, if the fixed length for cyclic prefixes is long enough to avoid ISI between consecutive symbols, then the symbols may omit zero padding. Otherwise, the symbols may include enough zero padding to avoid ISI between consecutive symbols. The zero padding may be zero tail or zero head.

    Network relay signaling for downlink transparent relay

    公开(公告)号:US09622229B2

    公开(公告)日:2017-04-11

    申请号:US13620385

    申请日:2012-09-14

    IPC分类号: H04W72/04 H04B7/155 H04B7/26

    摘要: In a method of providing downlink retransmissions to a mobile station in a wireless communication network, the wireless communication network comprising a base station communicatively linked to a transparent relay station, the base station receives a request for a retransmission from the mobile station; schedules resources for the retransmission; signals scheduling information for the retransmission to the transparent relay station via a control link; and the transparent relay station receives the scheduling information for the retransmission on the control link; and sends the retransmission to the mobile station in a retransmit subframe on a retransmit frequency band.

    Apparatus and method for transmitting data with conditional zero padding
    28.
    发明授权
    Apparatus and method for transmitting data with conditional zero padding 有权
    用条件零填补发送数据的装置和方法

    公开(公告)号:US09313063B1

    公开(公告)日:2016-04-12

    申请号:US14610277

    申请日:2015-01-30

    摘要: An apparatus and method for transmitting data with conditional zero padding is provided. In accordance with an embodiment of the disclosure, a transmitter transmits data to a receiver by transmitting symbols such that each symbol is preceded by a cyclic prefix of a fixed length and the symbol conditionally includes enough zero padding to avoid ISI (Inter-Symbol Interference) between consecutive symbols. In some implementations, if the fixed length for cyclic prefixes is long enough to avoid ISI between consecutive symbols, then the symbols may omit zero padding. Otherwise, the symbols may include enough zero padding to avoid ISI between consecutive symbols. The zero padding may be zero tail or zero head.

    摘要翻译: 提供了一种用条件零填充发送数据的装置和方法。 根据本公开的实施例,发射机通过发送符号将数据发送到接收机,使得每个符号之前是固定长度的循环前缀,并且符号有条件地包括足够的零填充以避免ISI(符号间干扰) 连续符号之间。 在一些实现中,如果循环前缀的固定长度足够长以避免连续符号之间的ISI,则符号可以省略零填充。 否则,符号可以包括足够的零填充以避免连续符号之间的ISI。 零填充可以是零尾或零头。

    System and method for transparent coordinated beam-forming
    29.
    发明授权
    System and method for transparent coordinated beam-forming 有权
    透明协调波束形成的系统和方法

    公开(公告)号:US09077413B2

    公开(公告)日:2015-07-07

    申请号:US13445422

    申请日:2012-04-12

    摘要: A method for reducing interference at a first user equipment (UE) includes receiving, by a second communications controller, a request to reduce interference at the first UE, the first UE being served by a first communications controller. The method also includes determining, by the second communications controller, a beam adjustment in accordance with uplink transmission measurements of the first UE and a second UE, the beam adjustment to aim a transmission to the second UE away from the second UE and towards an angle orthogonal to a first direction of the first UE relative to the second communications controller, the second UE being served by the second communications controller. The method further includes pre-adjusting, by the second communications controller, the transmission with the beam adjustment, and transmitting, by the second communications controller, the pre-adjusted transmission to the second UE.

    摘要翻译: 一种减少第一用户设备(UE)干扰的方法包括由第二通信控制器接收减少第一UE的干扰的请求,第一UE由第一通信控制器服务。 该方法还包括由第二通信控制器确定根据第一UE和第二UE的上行链路传输测量的波束调整,波束调整以将来自第二UE的传输瞄准第二UE并朝向第二UE的角度 与第一UE的第一方向相对于第二通信控制器正交,第二UE由第二通信控制器服务。 该方法还包括由第二通信控制器预先调整具有波束调整的传输,并由第二通信控制器将预先调整的传输发送到第二UE。