Interference Cancellation Method, Apparatus, and System

    公开(公告)号:US20220353704A1

    公开(公告)日:2022-11-03

    申请号:US17825512

    申请日:2022-05-26

    Abstract: In an embodiment an interference cancellation method includes generating, by a first device, a first packet, wherein the first packet comprises a first group of elements, a second group of elements, and user data, the first group of elements being different from the second group of elements and sending, by the first device, the first packet to a second device by using at least one pair of subcarriers, wherein two subcarriers in the at least one pair of subcarriers are symmetrical with respect to a direct current subcarrier, and wherein the first packet is usable by the second device to cancel interference in the user data based on the first group of elements and the second group of elements.

    Signal sending method and apparatus

    公开(公告)号:US11005537B2

    公开(公告)日:2021-05-11

    申请号:US16823859

    申请日:2020-03-19

    Abstract: The present disclosure relates to signal sending methods and apparatus. One example method includes generating a first data signal based on channel state information, receiving a second data signal sent by a primary transmitter, determining a phase of the second data signal, and sending the first data signal based on a phase of a first measurement signal sent by the primary transmitter and the phase of the second data signal sent by the primary transmitter.

    DATA TRANSMISSION DEVICE AND METHOD, AND COMMUNICATION SYSTEM
    4.
    发明申请
    DATA TRANSMISSION DEVICE AND METHOD, AND COMMUNICATION SYSTEM 审中-公开
    数据传输设备和方法,以及通信系统

    公开(公告)号:US20130051348A1

    公开(公告)日:2013-02-28

    申请号:US13663983

    申请日:2012-10-30

    Abstract: The present disclosure discloses a data transmission device and method and a communication system. The data transmission device provided in the present disclosure is located on an IP metropolitan area network node or on an optical line terminal of a radio access network and includes: a first service bypass processing module, configured to receive uplink packet service data sent by a user equipment, determine, according to a preset service distribution policy, that the uplink packet service data needs distribution, and directly send the uplink packet service data to a public data network PDN through a locally preset Gi interface; and/or a second service bypass processing module, configured to directly receive, through the Gi interface, downlink packet service data sent by the PDN to the UE and send the downlink packet service data to the UE.

    Abstract translation: 本公开公开了一种数据传输设备和方法以及通信系统。 在本公开中提供的数据传输设备位于IP城域网或无线接入网的光线路终端上,包括:第一业务旁路处理模块,用于接收用户发送的上行分组业务数据 设备根据预设的业务分配策略确定上行分组业务数据需要分配,并通过本地预设的Gi接口直接发送上行分组业务数据到公用数据网PDN; 和/或第二服务旁路处理模块,被配置为通过Gi接口直接接收由PDN发送到UE的下行链路分组业务数据,并向UE发送下行链路分组业务数据。

    Method for measuring downlink channel quality, transmit end, receive end, and system

    公开(公告)号:US10236962B2

    公开(公告)日:2019-03-19

    申请号:US16139238

    申请日:2018-09-24

    Abstract: A method includes: a transmit end transmits at least two mixed pilot signals to a receive end separately by using at least two physical antennas. The at least two mixed pilot signals are separately obtained after preset pilot signals corresponding to logical antennas in the at least two logical antennas are weighted by using a precoding weight matrix. The transmit sends a first codebook subset restriction instruction to the receive end. The first codebook subset restriction instruction carries a rank indication RANK and at least one precoding matrix index PMI. The transmit end receives a channel quality feedback message that is fed back by the receive end according to downlink channel quality of an equivalent channel of a specified antenna. Accordingly, a suitable serving antenna is selected for a receive end, thereby improving signal quality.

    Method for measuring downlink channel quality, transmit end, receive end, and system

    公开(公告)号:US10122433B2

    公开(公告)日:2018-11-06

    申请号:US15416544

    申请日:2017-01-26

    Abstract: The present disclosure disclose a method including: a transmit end transmits at least two mixed pilot signals to a receive end separately by using at least two physical antennas. The at least two mixed pilot signals are separately obtained after preset pilot signals corresponding to logical antennas in the at least two logical antennas are weighted by using a precoding weight matrix. The transmit sends a first codebook subset restriction instruction to the receive end. The first codebook subset restriction instruction carries a rank indication RANK and at least one precoding matrix index PMI. The transmit end receives a channel quality feedback message that is fed back by the receive end according to downlink channel quality of an equivalent channel of a specified antenna. According to the present invention, a suitable serving antenna is selected for a receive end, thereby improving signal quality.

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