Frequency domain equalization
    11.
    发明申请
    Frequency domain equalization 有权
    频域均衡

    公开(公告)号:US20060029144A1

    公开(公告)日:2006-02-09

    申请号:US11184680

    申请日:2005-07-19

    IPC分类号: H04L1/02 H04B1/10

    摘要: A radio receiver 102 is provided. The radio receiver 102 comprises one or more data Fast Fourier Transformers, each data Fast Fourier Transformer operable to perform a Fast Fourier Transform on an input data block, one or more impulse response Fast Fourier Transformers, each impulse response Fast Fourier Transformer operable to perform a Fast Fourier Transform on a channel impulse response, one or more multiplier components operable to multiply a term of the output of one of the data Fast Fourier Transformers by a term of the output of one of the impulse response Fast Fourier Transformers, and one or more Inverse Fast Fourier Transformers, each Inverse Fast Fourier Transformer operable to perform an Inverse Fast Fourier Transform based on an output of one or more of the multipliers.

    摘要翻译: 提供无线电接收机102。 无线电接收器102包括一个或多个数据快速傅立叶变换器,每个数据快速傅立叶变换器可操作以对输入数据块执行快速傅里叶变换,一个或多个脉冲响应快速傅立叶变换器,每个脉冲响应快速傅立叶变换器可操作以执行 对信道脉冲响应的快速傅立叶变换,一个或多个乘法器组件,可操作以将数据快速傅里叶变换器之一的输出的项乘以脉冲响应快速傅立叶变换器之一的输出项,以及一个或多个 快速傅里叶逆变换器,每个快速傅里叶逆变换器可操作以基于一个或多个乘法器的输出执行快速傅立叶逆变换。

    Method for channel quality indicator computation and feedback in a multi-carrier communications system
    12.
    发明申请
    Method for channel quality indicator computation and feedback in a multi-carrier communications system 审中-公开
    多载波通信系统中信道质量指标计算和反馈的方法

    公开(公告)号:US20050207367A1

    公开(公告)日:2005-09-22

    申请号:US11085590

    申请日:2005-03-21

    摘要: Method for computing and transmitting channel quality information in a multi-carrier communications system. A preferred embodiment comprises receiving a transmission from a transmitter, wherein the transmission occurs over a plurality of carriers, measuring a channel condition for each carrier in a plurality of carriers, computing a channel quality indicator based upon the measured channel condition, and providing the channel quality indicator to the transmitter. The channel quality indicator can be used at the transmitter to schedule transmissions to various users in the multi-carrier communications system to maximize utilization of the carriers as well as overall network performance.

    摘要翻译: 用于在多载波通信系统中计算和发送信道质量信息的方法。 优选实施例包括从发射机接收传输,其中所述传输发生在多个载波上,测量多个载波中的每个载波的信道状况,基于测量的信道状况计算信道质量指示符,以及提供信道 质量指示器到发射机。 可以在发射机处使用信道质量指示符来调度对多载波通信系统中的各种用户的传输,以最大限度地利用载波以及整体网络性能。

    Satellite positioning system receiver utilizing time-aiding information from an independent source
    13.
    发明申请
    Satellite positioning system receiver utilizing time-aiding information from an independent source 审中-公开
    卫星定位系统接收机利用来自独立源的时间辅助信息

    公开(公告)号:US20050202829A1

    公开(公告)日:2005-09-15

    申请号:US11026436

    申请日:2004-12-30

    IPC分类号: G01S19/09 G01S19/46 H04B7/185

    CPC分类号: G01S19/256

    摘要: An electronic device (10). The device has means (222) for receiving SPS information from an SPS system (40). The device also comprises means (223) for receiving broadcast timing information from a source (50) other than the SPS system. The device also comprises means for determining a location fix of the electronic device in response to the SPS information and the broadcast timing information.

    摘要翻译: 电子设备(10)。 该装置具有用于从SPS系统(40)接收SPS信息的装置(22> 2N)。 该设备还包括用于从除SPS系统之外的源(50)接收广播定时信息的装置(22,33)。 该设备还包括用于响应于SPS信息和广播定时信息来确定电子设备的定位的装置。

    Single-antenna interference cancellation receiver in time slot communication system
    14.
    发明申请
    Single-antenna interference cancellation receiver in time slot communication system 有权
    时隙通信系统中的单天线干扰消除接收机

    公开(公告)号:US20050201493A1

    公开(公告)日:2005-09-15

    申请号:US10967605

    申请日:2004-10-18

    IPC分类号: H04L25/02 H04L25/03 H04B1/00

    摘要: A receiver (MST) for use in a modulated communications system wherein data is communicated in a time-slotted format. The receiver comprises circuitry (22) for providing samples of a group of data from the time-slotted format and circuitry (46, 42) for determining a first set of channel estimates in response to a first set of the samples. The receiver also comprises circuitry (30) for first predicting decisions for data in the group of data in response to the first set of channel estimates and circuitry (46, 42) for determining a second set of channel estimates in response to the predicted decisions. Lastly, the circuitry for predicting is further for second predicting decisions for data in the group of data in response to the second set of channel estimates.

    摘要翻译: 一种用于调制通信系统的接收机(MST),其中以时隙格式传送数据。 接收机包括用于从时隙格式提供一组数据的样本的电路(22)和用于响应于第一组样本确定第一组信道估计的电路(46,42)。 接收机还包括电路(30),用于响应于第一组信道估计和电路(46,42)首先预测数据组中的数据的决定,以响应于预测的决定来确定第二组信道估计。 最后,用于预测的电路还用于响应于第二组信道估计来第二预测数据组中的数据的决定。

    Multipath equalization for MIMO multiuser systems
    15.
    发明授权
    Multipath equalization for MIMO multiuser systems 有权
    MIMO多用户系统的多路径均衡

    公开(公告)号:US07933342B2

    公开(公告)日:2011-04-26

    申请号:US10173282

    申请日:2002-06-17

    IPC分类号: H04K1/10 H04L27/28

    摘要: Interference rejection (85) can be applied to a wireless communication signal with reduced computational complexity by producing from a sample vector (y) a plurality of vectors (w) that are smaller than the sample vector. The interference rejection operation can then be applied to each of the smaller vectors individually to decide communication symbols represented by the sample vector.

    摘要翻译: 通过从样本矢量(y)产生小于样本矢量的多个矢量(w),干扰抑制(85)可以应用于具有降低的计算复杂度的无线通信信号。 然后可以将干扰抑制操作单独地应用于每个较小的矢量,以决定由样本矢量表示的通信符号。

    Code Division Multiple Access Wireless System With Closed Loop Mode Using Ninety Degree Phase Rotation and Beamformer Verification
    16.
    发明申请
    Code Division Multiple Access Wireless System With Closed Loop Mode Using Ninety Degree Phase Rotation and Beamformer Verification 有权
    使用九十度相位旋转和波束成形器验证的闭环模式的码分多址无线系统

    公开(公告)号:US20070165699A1

    公开(公告)日:2007-07-19

    申请号:US11681088

    申请日:2007-03-01

    IPC分类号: H04B1/00

    摘要: A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (a2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.

    摘要翻译: 一种无线通信系统(10)。 该系统包括用户站(12)。 用户站包括解扩电路(22),用于接收和解扩从至少第一发射天线(A 12 1 1)和第二发射天线(A 12&lt; 2&gt; 1& / SUB>)。 多个时隙中的每一个包括包括第一组导频符号的第一信道(DPCH)和包括第二组导频符号的第二信道(PCCPCH)。 用户站还包括电路(50),用于测量来自第一发射天线的多个时隙中的每个给定时隙的第一信道测量(α1,n N),并且响应于第一组 导频符号在给定的时隙。 用户站还包括电路(50),用于测量来自第二发射天线的多个时隙中的每个给定时隙的第二信道测量(α2,n N),并且响应于第一组 导频符号在给定的时隙。 用户站还包括用于响应于第一信道测量和第二信道测量而针对多个时隙中的每个给定时隙测量相位差值(phi <2> 2(n))的电路(52) 对于给定的时隙,并且响应于给定时隙相对于由紧接在给定时隙之前的解扩电路接收的时隙的九十度旋转。

    Packet transmission scheduling in a multi-carrier communications system
    18.
    发明申请
    Packet transmission scheduling in a multi-carrier communications system 审中-公开
    多载波通信系统中的分组传输调度

    公开(公告)号:US20050207441A1

    公开(公告)日:2005-09-22

    申请号:US11085452

    申请日:2005-03-21

    CPC分类号: H04L5/023 H04L27/2608

    摘要: Method for packet transmission scheduling in a multi-carrier communications system. A preferred embodiment comprises selecting a set of users from a group of users who are targets of intended transmissions, wherein the selection is based upon channel quality information, determining a set of transmission parameters for each user in the set of users, and scheduling transmissions to the set of users. The channel quality information, which can be provided by the users of the multi-carrier communications system, can permit the exploitation of frequency diversity inherent in the multi-carrier communications system to increase system capacity to beyond a simple sum of carrier transmission bandwidth.

    摘要翻译: 多载波通信系统中分组传输调度的方法。 优选实施例包括从作为目标传输目标的一组用户中选择一组用户,其中所述选择基于信道质量信息,确定用户组中每个用户的一组传输参数,并将传输调度到 该组用户。 可以由多载波通信系统的用户提供的信道质量信息可以允许利用多载波通信系统中固有的频率分集来增加系统容量以超出载波传输带宽的简单和。

    Hybrid ARQ schemes for a multi-carrier communications system
    19.
    发明申请
    Hybrid ARQ schemes for a multi-carrier communications system 审中-公开
    用于多载波通信系统的混合ARQ方案

    公开(公告)号:US20050207345A1

    公开(公告)日:2005-09-22

    申请号:US11085591

    申请日:2005-03-21

    IPC分类号: H04L1/18 H04L12/26 H04L27/26

    摘要: Method for exploiting frequency diversity in a multi-carrier communications system to improve retransmission performance. A preferred embodiment comprises receiving the request for retransmission, formatting data for the retransmission, selecting a carrier from a plurality of carriers, and transmitting the retransmission on the selected carrier. The selected carrier may be different from a carrier used transmit the damaged transmission, thereby frequency diversity is exploited to change the probability of successful transmission in the retransmission. Alternatively, the retransmission may take place at a later time, to permit changes in the selected carrier to take place and obtain frequency diversity via the changed carrier.

    摘要翻译: 利用多载波通信系统中的频率分集来提高重传性能的方法。 优选实施例包括接收重传请求,格式化重传数据,从多个载波中选择载波,以及在所选载波上发送重传。 所选择的载波可能与使用的载波不同,发送损坏的传输,从而利用频率分集来改变重传中成功传输的概率。 或者,重传可以在稍后的时间进行,以允许所选择的载波中的改变发生并通过改变的载波获得频率分集。

    Group based packet scheduling algorithm
    20.
    发明申请
    Group based packet scheduling algorithm 有权
    基于组的分组调度算法

    公开(公告)号:US20050195843A1

    公开(公告)日:2005-09-08

    申请号:US10792569

    申请日:2004-03-03

    IPC分类号: H04L12/56

    CPC分类号: H04W72/121

    摘要: A system comprises a base station, a plurality of mobile stations, and a packet scheduling algorithm that operates on the base station. The packet scheduling algorithm groups the plurality of mobile stations into a plurality of groups based on average throughput with the base station. The packet scheduling algorithm selects one of the plurality of groups for applying a scheduling metric.

    摘要翻译: 一种系统包括基站,多个移动站以及在基站上操作的分组调度算法。 分组调度算法基于与基站的平均吞吐量将多个移动站分组成多个组。 分组调度算法选择多个组中的一个来应用调度度量。