PROVIDING ANTENNA DIVERSITY IN A WIRELESS COMMUNICATION SYSTEM
    61.
    发明申请
    PROVIDING ANTENNA DIVERSITY IN A WIRELESS COMMUNICATION SYSTEM 有权
    在无线通信系统中提供天线多样性

    公开(公告)号:US20080117999A1

    公开(公告)日:2008-05-22

    申请号:US11937472

    申请日:2007-11-08

    IPC分类号: H04L1/02

    摘要: Systems and methodologies are described that facilitate cycling across antennas for channel quality information (CQI) computation and data transmission in a multiple-input multiple-output (MIMO) wireless communication environment. Pilots can be obtained by a wireless terminal. Further, virtual antennas that can be supported by a channel can be identified based upon an analysis of the pilots. Moreover, CQI computations can be effectuated for each of the supported virtual antennas; thereafter, the CQI data can be sent to a base station for data transmission scheduling. Additionally, the base station can schedule transmission based upon the CQI data and/or fairness considerations. When scheduled, data transmission can occur by cycling across the supported virtual antennas.

    摘要翻译: 描述了有助于在多输入多输出(MIMO)无线通信环境中跨越天线进行信道质量信息(CQI)计算和数据传输的系统和方法。 飞行员可以通过无线终端获得。 此外,可以基于对导频的分析来识别可以由信道支持的虚拟天线。 此外,可以为每个所支持的虚拟天线实现CQI计算; 此后,CQI数据可以被发送到用于数据传输调度的基站。 此外,基站可以基于CQI数据和/或公平性考虑来调度传输。 当调度时,可以通过在支持的虚拟天线之间循环来进行数据传输。

    METHOD AND APPARATUS FOR PRE-CODING FOR A MIMO SYSTEM
    62.
    发明申请
    METHOD AND APPARATUS FOR PRE-CODING FOR A MIMO SYSTEM 审中-公开
    用于MIMO系统的预编码的方法和装置

    公开(公告)号:US20070165738A1

    公开(公告)日:2007-07-19

    申请号:US11552948

    申请日:2006-10-25

    IPC分类号: H04L1/02

    CPC分类号: H04L1/0687

    摘要: Systems and methodologies are described that facilitates computing a precoding index which correlates to a precoding matrix within a codebook. According to various aspects, systems and/or methods are described that facilitate computing an effective signal-to-noise ratio (SNR). Such systems and/or methods may further facilitate selecting a precoding matrix and a corresponding precoding index. Such systems and/or methods may still further facilitate employing the precoding matrix in a MIMO wireless communication system.

    摘要翻译: 描述了有助于计算与码本内的预编码矩阵相关的预编码索引的系统和方法。 根据各个方面,描述了有助于计算有效信噪比(SNR)的系统和/或方法。 这样的系统和/或方法可以进一步促进选择预编码矩阵和相应的预编码索引。 这样的系统和/或方法还可以进一步促进在MIMO无线通信系统中采用预编码矩阵。

    Pseudo eigen-beamforming with dynamic beam selection
    63.
    发明申请
    Pseudo eigen-beamforming with dynamic beam selection 审中-公开
    具有动态波束选择的伪特征波束成形

    公开(公告)号:US20070071147A1

    公开(公告)日:2007-03-29

    申请号:US11454761

    申请日:2006-06-15

    IPC分类号: H04B7/10 H04L27/28

    摘要: Techniques for transmitting data with limited channel information are described. A transmitter (e.g., a base station) obtains channel information for a subset of multiple antennas used for data reception at a receiver (e.g., a terminal). The channel information may include at least one channel response vector for at least one antenna, which is a subset of the multiple antennas at the receiver. The transmitter derives multiple eigenvectors based on the channel information, e.g., using pseudo eigen-beamforming. The transmitter selects at least one eigenvector from among the multiple eigenvectors and transmits data with the selected eigenvector(s). The transmitter may select and use different subsets of eigenvector(s) in different time intervals. The transmitter may arrange the multiple eigenvectors into multiple sets based on their eigenvalues, select at least one set based on a MIMO transmission rank, and select one eigenvector from each set.

    摘要翻译: 描述了用有限信道信息发送数据的技术。 发射机(例如,基站)在接收机(例如,终端))获得用于数据接收的多个天线的子集的信道信息。 信道信息可以包括用于至少一个天线的至少一个信道响应向量,其是接收机处的多个天线的子集。 发射机基于信道信息导出多个特征向量,例如使用伪特征波束形成。 发射机从多个特征向量中选择至少一个特征向量,并用所选择的特征向量发送数据。 发射机可以在不同的时间间隔内选择和使用不同的特征向量子集。 发射机可以基于它们的特征值将多个特征向量排列成多个集合,基于MIMO传输秩选择至少一个集合,并从每个集合中选择一个特征向量。

    Acknowledgment channel for wireless communications
    66.
    发明授权
    Acknowledgment channel for wireless communications 有权
    无线通信确认通道

    公开(公告)号:US09264183B2

    公开(公告)日:2016-02-16

    申请号:US12446709

    申请日:2007-10-24

    摘要: Systems and methodologies are described that facilitate establishing a forward link acknowledgement channel and transmitting acknowledgment signals thereupon. In particular, the signals can be spread within contiguous channel clusters in a tile where the signals in the cluster are mutually orthogonal to one another. Additionally, the signals can be multiplexed over a plurality of frequency regions. In this regard, the acknowledgment signals are diverse with respect to frequency and interference; moreover, the signals can be received and decoded even where one of the channels experiences high interference. Furthermore, the acknowledgement signals can also communicate a channel deassignment value, which allows devices to utilize persistent channels in communicating data to one another.

    摘要翻译: 描述了有助于建立前向链路确认信道并在其上发送确认信号的系统和方法。 特别地,信号可以在其中簇中的信号彼此相互正交的瓦片中的相邻信道簇内扩展。 另外,可以在多个频率区域上复用信号。 在这方面,确认信号在频率和干扰方面是不同的; 此外,即使在一个信道经受高干扰的情况下也可以接收和解码信号。 此外,确认信号还可以传送信道去分配值,这允许设备利用持久信道将数据彼此通信。

    Preamble design for a wireless signal
    67.
    发明授权
    Preamble design for a wireless signal 有权
    无线信号的前缀设计

    公开(公告)号:US09215669B2

    公开(公告)日:2015-12-15

    申请号:US12260826

    申请日:2008-10-29

    摘要: Providing for base station (BS) acquisition in semi-planned or unplanned wireless access networks is described herein. By way of example, a signal preamble can be dynamically allocated to wireless signal resources, such that the preamble is scheduled to different resource(s) across different cycles of the signal. Dynamic allocation can be pseudo-random, based on collision feedback, or determined by a suitable algorithm to mitigate collisions from a dominant interferer. In addition, dynamic scheduling can be particular to a type of BS to significantly reduce collisions from BSs of disparate types. In at least one aspect, a preamble resource can be sub-divided into multiple frequency sub-carrier tiles. Control channel information can be transmitted on each tile of a group of such tiles, further mitigating effects of a dominant interferer on a subset of the tile group.

    摘要翻译: 本文描述了在半计划或非计划无线接入网络中提供基站(BS)采集。 作为示例,可以将信号前同步码动态地分配给无线信号资源,使得前导码被调度到跨越信号的不同周期的不同资源。 动态分配可以是伪随机的,基于碰撞反馈,或者由适当的算法确定,以减轻来自主要干扰源的冲突。 此外,动态调度对于一种类型的BS可以是特别的,以显着减少来自不同类型的BS的冲突。 在至少一个方面,前导码资源可以被细分为多个频率子载波瓦片。 可以在一组这样的瓦片的每个瓦片上发送控制信道信息,进一步减轻显着干扰源对瓦片组的子集的影响。