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    • 82. 发明授权
    • Channel feedback for TDM scheduling in heterogeneous networks having multiple cell classes
    • 具有多个小区类的异构网络中TDM调度的信道反馈
    • US08861391B1
    • 2014-10-14
    • US13409130
    • 2012-03-01
    • Yan ZhangKrishna Srikanth Gomadam
    • Yan ZhangKrishna Srikanth Gomadam
    • H04L1/00H04B7/06
    • H04L1/0007H04B7/0619H04L1/0026H04L25/03949Y02D70/00Y02D70/1262Y02D70/444
    • A method includes receiving in a communication terminal a sequence of downlink frames from a communication network that includes multiple cells arranged in first and second layers. The first layer corresponds to a first class of cells selected from a group of classes consisting of macro-cells, micro-cells, pico-cells, femto-cells and low-power nodes (LPN). The second layer corresponds to a second class of cells, different from the first class. One or more cross-layer frames in which at least a first cell in the first layer and at least a second cell in the second layer transmit data, and one or more same-layer frames in which only one or more of the cells in a single layer that currently serves the terminal transmit the data, are identified in the sequence. Cross-layer channel feedback is calculated over the cross-layer frames, and same-layer channel feedback is calculated over the same-layer frames.
    • 一种方法包括在通信终端中接收包括布置在第一和第二层中的多个小区的通信网络的下行链路帧序列。 第一层对应于从由宏小区,微小区,微微小区,毫微微小区和低功率节点(LPN)组成的组中选择的第一类小区。 第二层对应于与第一类不同的第二类单元格。 一个或多个跨层帧,其中第一层中的至少第一小区和第二层中的至少第二小区发送数据,以及一个或多个相同层帧,其中一个或多个单元 当前服务于终端的单层发送数据,按顺序标识。 在跨层帧上计算跨层信道反馈,并在相同层帧上计算同层信道反馈。
    • 84. 发明授权
    • MIMO feedback schemes for cross-polarized antennas
    • 交叉极化天线的MIMO反馈方案
    • US08761289B2
    • 2014-06-24
    • US12965878
    • 2010-12-12
    • Adoram ErellKrishna Srikanth GomadamYan ZhangEzer Melzer
    • Adoram ErellKrishna Srikanth GomadamYan ZhangEzer Melzer
    • H04B7/02H04L1/02
    • H04B7/10H04B7/063H04B7/0641H04B7/0663
    • A method includes receiving a Multiple-Input Multiple Output (MIMO) signal over multiple communication channels from an antenna array including a first set of antennas having a first polarization and a second set of the antennas having a second polarization that is orthogonal to the first polarization. First feedback information is calculated relating to first interrelations between the antennas within either the first set or the second set. Second feedback information is calculated relating at least to second interrelations between the first set and the second set of the antennas. The first feedback information is transmitted at a first time/frequency granularity, and the second feedback information is transmitted at a second time/frequency granularity that is finer than the first time/frequency granularity.
    • 一种方法包括:从包括具有第一偏振的第一组天线的天线阵列的多个通信信道上接收多输入多输出(MIMO)信号,并且所述天线的第二组具有与第一极化正交的第二极化 。 计算与第一组或第二组内的天线之间的第一相互关系的第一反馈信息。 计算第二反馈信息至少与第一组和第二组天线之间的第二相互关系。 以第一时间/频率粒度发送第一反馈信息,并且以比第一时间/频率粒度更精细的第二时间/频率粒度发送第二反馈信息。