利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.035 秒)

    TRANSMISSION OF CHANNEL QUALITY DATA IN WIRELESS COMMUNICATION SYSTEMS
    2.
    发明申请
    TRANSMISSION OF CHANNEL QUALITY DATA IN WIRELESS COMMUNICATION SYSTEMS 有权
    无线通信系统中信道质量数据的传输

    公开(公告)号：US20100227565A1

    公开(公告)日：2010-09-09

    申请号：US12645830

    申请日：2009-12-23

    申请人： Hongmei Sun ,  Changlong Xu ,  Qinghua Li ,  Yuan Zhu ,  Rath Vannithamby ,  Jong-Kae J.K. Fwu ,  Senjie Zhang ,  Yang Y. Gao ,  Hujun Yin

    发明人： Hongmei Sun ,  Changlong Xu ,  Qinghua Li ,  Yuan Zhu ,  Rath Vannithamby ,  Jong-Kae J.K. Fwu ,  Senjie Zhang ,  Yang Y. Gao ,  Hujun Yin

    IPC分类号： H04B17/00

    CPC分类号： H04W68/08 ,  H04B7/0478 ,  H04W68/02 ,  H04W84/045

    摘要： Briefly, in accordance with one or more embodiments, data transmitted from a transmitter is received in a downlink channel, and channel quality data is fed back to the transmitter in a first uplink channel or in a second uplink channel. Channel quality data is feedback at a lower rate on the first uplink channel and channel quality data is feedback at a higher rate on the second uplink channel in the event there is a higher amount of data to be fed back. Link adaptation may be utilized to select a transmission rate on the second uplink channel, wherein the transmission rate is selected based at least in part on a channel condition or a user location.

    摘要翻译： 简而言之，根据一个或多个实施例，在下行链路信道中接收从发射机发送的数据，并且在第一上行链路信道或第二上行链路信道中将信道质量数据反馈给发射机。 信道质量数据在第一上行链路信道上以较低的速率进行反馈，并且在存在要反馈的数据量较大的情况下，信道质量数据以较高速率在第二上行链路信道上反馈。 可以利用链路自适应来选择第二上行链路信道上的传输速率，其中至少部分地基于信道条件或用户位置来选择传输速率。

    Transmission of channel quality data in wireless communication systems
    3.
    发明授权
    Transmission of channel quality data in wireless communication systems 有权
    无线通信系统中信道质量数据的传输

    公开(公告)号：US09037091B2

    公开(公告)日：2015-05-19

    申请号：US12645830

    申请日：2009-12-23

    申请人： Hongmei Sun ,  Changlong Xu ,  Qinghua Li ,  Yuan Zhu ,  Rath Vannithamby ,  Jong-Kae J. K. Fwu ,  Senjie Zhang ,  Yang Y. Gao ,  Hujun Yin

    发明人： Hongmei Sun ,  Changlong Xu ,  Qinghua Li ,  Yuan Zhu ,  Rath Vannithamby ,  Jong-Kae J. K. Fwu ,  Senjie Zhang ,  Yang Y. Gao ,  Hujun Yin

    IPC分类号： H04B17/00 ,  H04W68/08

    CPC分类号： H04W68/08 ,  H04B7/0478 ,  H04W68/02 ,  H04W84/045

    摘要： Briefly, in accordance with one or more embodiments, data transmitted from a transmitter is received in a downlink channel, and channel quality data is fed back to the transmitter in a first uplink channel or in a second uplink channel. Channel quality data is feedback at a lower rate on the first uplink channel and channel quality data is feedback at a higher rate on the second uplink channel in the event there is a higher amount of data to be fed back. Link adaptation may be utilized to select a transmission rate on the second uplink channel, wherein the transmission rate is selected based at least in part on a channel condition or a user location.

    摘要翻译： 简而言之，根据一个或多个实施例，在下行链路信道中接收从发射机发送的数据，并且在第一上行链路信道或第二上行链路信道中将信道质量数据反馈给发射机。 信道质量数据在第一上行链路信道上以较低的速率进行反馈，并且在存在要反馈的数据量较大的情况下，信道质量数据以较高速率在第二上行链路信道上反馈。 可以利用链路自适应来选择第二上行链路信道上的传输速率，其中至少部分地基于信道条件或用户位置来选择传输速率。

    MIMO beamforming method and method of constructing a differential codebook for a wireless network
    7.
    发明申请
    MIMO beamforming method and method of constructing a differential codebook for a wireless network 有权
    MIMO波束成形方法和无线网络构成差分码本的方法

    公开(公告)号：US20100054114A1

    公开(公告)日：2010-03-04

    申请号：US12584142

    申请日：2009-09-01

    申请人： Qinghua Li ,  Senjie Zhang ,  Hongming Zheng ,  Shanshan Zheng

    发明人： Qinghua Li ,  Senjie Zhang ,  Hongming Zheng ,  Shanshan Zheng

    IPC分类号： H04J11/00 ,  H04B7/00 ,  H04K1/10

    CPC分类号： H04B7/0617 ,  H04B7/0434 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0478 ,  H04B7/0641 ,  H04W16/28

    摘要： A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

    摘要翻译： MIMO波束成形方法包括在基站处接收关于理想波束成形矩阵和平均波束成形方向之间的差异的信息，使用该信息在基站处构造波束成形矩阵，以及使用重构波束形成矩阵执行波束成形操作。 或者，该方法包括在用户台处计算平均波束成形方向，在用户台处计算与差分码本中的差分矩阵相对应的量化索引，以及在无线网络的无线信道上发送量化索引。 可以通过识别码本中心和变换存储在无线网络的组件的存储器中的预定码本来构建差分码本。

    MIMO beamforming method and method of constructing a differential codebook for a wireless network
    8.
    发明授权
    MIMO beamforming method and method of constructing a differential codebook for a wireless network 有权
    MIMO波束成形方法和无线网络构成差分码本的方法

    公开(公告)号：US09094072B2

    公开(公告)日：2015-07-28

    申请号：US13437162

    申请日：2012-04-02

    申请人： Qinghua Li ,  Senjie Zhang ,  Hongming Zheng ,  Shanshan Zheng

    发明人： Qinghua Li ,  Senjie Zhang ,  Hongming Zheng ,  Shanshan Zheng

    IPC分类号： H04W4/00 ,  H04B7/06 ,  H04B7/04 ,  H04W16/28

    CPC分类号： H04B7/0617 ,  H04B7/0434 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0478 ,  H04B7/0641 ,  H04W16/28

    摘要： A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

    摘要翻译： MIMO波束成形方法包括在基站处接收关于理想波束成形矩阵和平均波束成形方向之间的差异的信息，使用该信息在基站处构造波束成形矩阵，以及使用重构波束形成矩阵执行波束成形操作。 或者，该方法包括在用户台处计算平均波束成形方向，在用户台处计算与差分码本中的差分矩阵相对应的量化索引，以及在无线网络的无线信道上发送量化索引。 可以通过识别码本中心和变换存储在无线网络的组件的存储器中的预定码本来构建差分码本。