DL MIMO Precoding Enhancement
    22.
    发明申请
    DL MIMO Precoding Enhancement 审中-公开
    DL MIMO预编码增强

    公开(公告)号:US20140198868A1

    公开(公告)日:2014-07-17

    申请号:US14158035

    申请日:2014-01-17

    Abstract: A method includes applying a precoder to information to be transmitted on N antenna ports, wherein application of the precoder creates an M-Tx codebook, each codeword of which is obtained through truncation of a codeword from an N-Tx codebook corresponding to the N antenna ports. The precoded information is transmitted on the N antenna ports to a UE and information allowing an N-Tx codeword to be selected from the N-Tx codebook is received. The N-Tx codeword is truncated to an M-Tx codeword and the M-Tx codeword is used for a transmission to the UE. Another method includes receiving at a UE a transmission in first and second sets of N antenna ports, wherein the second set of antenna ports creates at least in part an M-Tx codebook. The UE searches the N-Tx codebook to determine an N-Tx codeword to be fed back and feeds back the N-Tx codeword.

    Abstract translation: 一种方法包括将预编码器应用于N个天线端口上要发送的信息,其中预编码器的应用创建M-Tx码本,其码字是通过对应于N个天线的N-Tx码本截断码字获得的 港口。 预编码信息在N个天线端口上发送给UE,并且接收允许从N-Tx码本中选择N-Tx码字的信息。 N-Tx码字被截断为M-Tx码字,并且M-Tx码字用于向UE的传输。 另一种方法包括在UE处接收第一和第二组N个天线端口中的传输,其中所述第二组天线端口至少部分地创建M-Tx码本。 UE搜索N-Tx码本以确定要反馈的N-Tx码字并反馈N-Tx码字。

    Inhibition mechanism for device-to-device (D2D) communication

    公开(公告)号:US10219301B2

    公开(公告)日:2019-02-26

    申请号:US15501545

    申请日:2014-08-06

    Abstract: An example method includes generating, by a first user device, a first number representing a contention resolution priority for the first user device contending for at least one first resource over a first data period for transmitting a packet of data in a device-to-device (D2D) wireless network, determining if a second device, in the D2D wireless network, is contending for resources overlapping with the at least one first resource of the first data period, if the second device is contending for resources overlapping with the at least one first resource of the first data period, determining if a second number representing a contention resolution priority for the second user device is greater than the first number, and if the second number is greater than the first number, inhibiting the first user device from communicating using the at least one first resource of the first data period.

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