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330 条记录 (耗时 0.034 秒)

    User separation in space division multiple access for a multi-carrier communication system
    12.
    发明授权
    User separation in space division multiple access for a multi-carrier communication system 有权
    用于多载波通信系统的空分多址的用户分离

    公开(公告)号：US08363603B2

    公开(公告)日：2013-01-29

    申请号：US11333890

    申请日：2006-01-18

    申请人： Min Dong ,  Tingfang Ji ,  Dhananjay Ashok Gore ,  Alexei Gorokhov ,  Arak Sutivong

    发明人： Min Dong ,  Tingfang Ji ,  Dhananjay Ashok Gore ,  Alexei Gorokhov ,  Arak Sutivong

    IPC分类号： H04W4/00

    CPC分类号： H04B7/0617 ,  H04B7/0452 ,  H04W16/04 ,  H04W16/28

    摘要： Apparatuses and methodologies are described that increase system capacity in a multi-access wireless communication system. Spatial dimensions may be utilized to distinguish between multiple signals utilizing the same channel and thereby increase system capacity. Signals may be separated by applying beamforming weights based upon the spatial signature of the user device-base station pair. Grouping spatially orthogonal or disparate user devices on the same channel facilitates separation of signals and maximization of user device throughput performance. User devices may be reassigned to groups periodically or based upon changes in the spatial relationships between the user devices and the base station.

    摘要翻译： 描述了增加多址无线通信系统中的系统容量的装置和方法。 可利用空间维度来区分使用相同信道的多个信号，从而增加系统容量。 可以基于用户设备 - 基站对的空间签名应用波束成形权重来分离信号。 在相同信道上对空间正交或不同用户设备进行分组有助于信号分离和用户设备吞吐量性能的最大化。 用户设备可以周期性地或基于用户设备和基站之间的空间关系的改变重新分配给组。

    Method and apparatus for pilot communication in a multi-antenna wireless communication system
    19.
    发明申请
    Method and apparatus for pilot communication in a multi-antenna wireless communication system 有权
    用于多天线无线通信系统中的导频通信的方法和装置

    公开(公告)号：US20070071127A1

    公开(公告)日：2007-03-29

    申请号：US11390622

    申请日：2006-03-27

    申请人： Dhananjay Gore ,  Tingfang Ji ,  Tamer Kadous

    发明人： Dhananjay Gore ,  Tingfang Ji ,  Tamer Kadous

    IPC分类号： H04L1/02

    CPC分类号： H04L27/2613 ,  H04B7/0413 ,  H04L25/0226

    摘要： Systems and methodologies are described that facilitate improved pilot information to MIMO user devices without increasing interference of SISO user devices in a wireless communication environment. A data communication signal can be generated and transmitted at a first power level, and a continuous pilot waveform comprising pilot information related to the data signal can be generated and sent at a second power level below the first transmission power level. Alternatively, a discontinuous pilot waveform can be generated so that it does not overlap with pilot segments in the first waveform, and can be transmitted at the first power level without interfering with the first waveform as received by a SISO user device. A MIMO user device can receive both waveforms, and can employ the pilot waveform to better estimate a MIMO channel for the first waveform.

    摘要翻译： 描述了在不增加SISO用户设备在无线通信环境中的干扰的情况下促进对MIMO用户设备的改进的导频信息的系统和方法。 可以以第一功率电平生成并发送数据通信信号，并且可以以低于第一发送功率电平的第二功率电平生成包括与数据信号相关的导频信息的连续导频波形。 或者，可以生成不连续的导频波形，使得其不与第一波形中的导频段重叠，并且可以在不干扰由SISO用户设备接收的第一波形的情况下以第一功率电平发送。 MIMO用户设备可以接收两个波形，并且可以使用导频波形来更好地估计用于第一波形的MIMO信道。

    Recovery from resource mismatch in a wireless communication system
    20.
    发明授权
    Recovery from resource mismatch in a wireless communication system 有权
    从无线通信系统中的资源不匹配恢复

    公开(公告)号：US09420603B2

    公开(公告)日：2016-08-16

    申请号：US11849646

    申请日：2007-09-04

    申请人： Tingfang Ji ,  Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar

    发明人： Tingfang Ji ,  Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar

    IPC分类号： H04W72/12

    CPC分类号： H04W72/1252

    摘要： System(s) and method(s) that facilitate assignment mismatch recovery are provided. A projected level of resources required to satisfy one or more communication constraints (e.g., inter-cell and intra-cell interference) is generated. The projected resources are contrasted with scheduled resources and a determination is made as to whether a mismatch between assigned and projected resources exists. A mismatch is recovered through an adaptive response that feeds back magnitudes for the communication resources which are compatible with the communication constraints.

    摘要翻译： 提供了有助于分配失配恢复的系统和方法。 产生满足一个或多个通信约束（例如，小区间和小区内干扰）所需的预计资源量。 预计资源与预定的资源形成对照，并确定是否存在分配和预计资源之间的不匹配。 通过自适应响应恢复不匹配，该自适应响应反馈与通信约束兼容的通信资源的幅度。