System and Method for Frequency Division Multiple Access Communications
    2.
    发明申请
    System and Method for Frequency Division Multiple Access Communications 有权
    用于频分多址通信的系统和方法

    公开(公告)号:US20080219235A1

    公开(公告)日:2008-09-11

    申请号:US11996463

    申请日:2006-07-27

    IPC分类号: H04B7/208

    摘要: A method and system for wireless frequency division multiple access communications in the uplink and/or downlink directions, having an improved pilot insertion scheme for single carrier based communications is provided. A first time duration for transmission of a data payload block (7) is established, and the transmission is processed using a first frequency domain or a time domain. A second time duration for transmission of at least one pilot block (70) is established, and the transmission is processed using a second frequency domain or the time domain, the second time duration (70) is not greater than the first time duration (7).

    摘要翻译: 提供了一种用于上行链路和/或下行链路方向上的无线频分多址通信的方法和系统,其具有用于基于单载波的通信的改进的导频插入方案。 建立用于发送数据有效载荷块(7)的第一时间段,并且使用第一频域或时域处理传输。 建立用于发送至少一个导频块(70)的第二持续时间,并且使用第二频域或时域处理该传输,第二持续时间(70)不大于第一持续时间(7) )。

    Adaptive Transmission Systems and Methods
    4.
    发明申请
    Adaptive Transmission Systems and Methods 有权
    自适应传输系统和方法

    公开(公告)号:US20120188881A1

    公开(公告)日:2012-07-26

    申请号:US12226736

    申请日:2007-04-19

    IPC分类号: H04W24/00 H04B7/04

    摘要: Abstract Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.

    摘要翻译: 摘要空间复用和发射分集可以提高无线通信系统的容量。 该系统和方法利用至少两种传输模式来适应具有多个天线的通信系统的通信方案。 至少两种传输模式可以但不一定用于上行链路通信。 两种传输模式可以从由单天线模式,分集模式,空间复用模式和混合分集和空间复用模式组成的组中选择。 至少两个传输模式可以涉及多个发射机之间的适配。 至少一个接收机可以指示要由发射机用于后续传输的传输模式。 发射机可以确定要用于后续传输的传输模式。 传输模式可以基于通道探测。

    Methods and systems to mitigate inter-cell interference
    5.
    发明申请
    Methods and systems to mitigate inter-cell interference 有权
    缓解细胞间干扰的方法和系统

    公开(公告)号:US20090245197A1

    公开(公告)日:2009-10-01

    申请号:US11990868

    申请日:2006-08-23

    IPC分类号: H04W72/04

    摘要: The present invention provides methods and devices for mitigating inter-cell interference in communication environments having a plurality of cells. In some embodiments, a time-frequency transmission resource that includes multiple sub-carriers over multiple OFDM symbol intervals is partitioned into a first zone and a second zone. In the first zone, transmissions are transmitted on at least one frequency sub-band which is common to all of the plurality of cells. In the second zone, transmissions are transmitted on at least one frequency sub-band which is used by less than all of the plurality of cells, so as to mitigate inter-cell interference. In some embodiments, in the first zone transmissions are transmitted using a transmission power which is common to all of the plurality of cells and in the second zone transmissions are transmitted using a transmission power which is used by less than all of the plurality of cells so as to mitigate inter-cell interference.

    摘要翻译: 本发明提供了用于减轻具有多个小区的通信环境中的小区间干扰的方法和装置。 在一些实施例中,包括多个OFDM符号间隔上的多个子载波的时间 - 频率传输资源被划分为第一区域和第二区域。 在第一区域中,在所有多个小区共同的至少一个频率子带上传输传输。 在第二区域中,传输在由少于所有多个小区使用的至少一个频率子带上发送,以便减轻小区间干扰。 在一些实施例中,在第一区域中,使用对于所有多个小区是公共的传输功率传输传输,并且在第二区域中,传输使用小于所有多个小区使用的传输功率来传输 以减轻细胞间干扰。

    System and method for frequency division multiple access communications
    6.
    发明授权
    System and method for frequency division multiple access communications 有权
    用于频分多址通信的系统和方法

    公开(公告)号:US08169994B2

    公开(公告)日:2012-05-01

    申请号:US11996463

    申请日:2006-07-27

    IPC分类号: H04B7/208

    摘要: A method and system for wireless frequency division multiple access communications in the uplink and/or downlink directions, having an improved pilot insertion scheme for single carrier based communications is provided. A first time duration for transmission of a data payload block (7) is established, and the transmission is processed using a first frequency domain or a time domain. A second time duration for transmission of at least one pilot block (70) is established, and the transmission is processed using a second frequency domain or the time domain, the second time duration (70) is not greater than the first time duration (7).

    摘要翻译: 提供了一种用于上行链路和/或下行链路方向上的无线频分多址通信的方法和系统,其具有用于基于单载波的通信的改进的导频插入方案。 建立用于发送数据有效载荷块(7)的第一时间段,并且使用第一频域或时域处理传输。 建立用于发送至少一个导频块(70)的第二持续时间,并且使用第二频域或时域处理该传输,第二持续时间(70)不大于第一持续时间(7) )。