Methods, computer program products and apparatus providing improved quantization
    1.
    发明授权
    Methods, computer program products and apparatus providing improved quantization 有权
    方法,提供改进量化的计算机程序产品和装置

    公开(公告)号:US08243756B2

    公开(公告)日:2012-08-14

    申请号:US11827717

    申请日:2007-07-12

    CPC分类号: H03M7/30

    摘要: Thus, the exemplary embodiments of the invention describe methods, computer program products and apparatus that provide improved quantization, as may be useful within the context of a communication system (e.g., a wireless communication system) that has a relay node. In one non-limiting, exemplary embodiment, a method includes: receiving a transmission having source data from an information source; determining an estimate of the source data using a quantization technique based on maximizing data throughput; and transmitting a message including the determined estimate towards an information destination.

    摘要翻译: 因此,本发明的示例性实施例描述了在具有中继节点的通信系统(例如,无线通信系统)的上下文中可能有用的提供改进的量化的方法,计算机程序产品和装置。 在一个非限制性的示例性实施例中,一种方法包括:从信息源接收具有源数据的传输; 使用基于最大化数据吞吐量的量化技术来确定源数据的估计; 以及向所述信息目的地发送包括所确定的估计的消息。

    Methods, computer program products and apparatus providing improved quantization
    2.
    发明申请
    Methods, computer program products and apparatus providing improved quantization 有权
    方法,提供改进量化的计算机程序产品和装置

    公开(公告)号:US20090016415A1

    公开(公告)日:2009-01-15

    申请号:US11827717

    申请日:2007-07-12

    IPC分类号: H04L25/52 H04B7/204

    CPC分类号: H03M7/30

    摘要: Thus, the exemplary embodiments of the invention describe methods, computer program products and apparatus that provide improved quantization, as may be useful within the context of a communication system (e.g., a wireless communication system) that has a relay node. In one non-limiting, exemplary embodiment, a method includes: receiving a transmission having source data from an information source; determining an estimate of the source data using a quantization technique based on maximizing data throughput; and transmitting a message including the determined estimate towards an information destination.

    摘要翻译: 因此,本发明的示例性实施例描述了在具有中继节点的通信系统(例如,无线通信系统)的上下文中可能有用的提供改进的量化的方法,计算机程序产品和装置。 在一个非限制性的示例性实施例中,一种方法包括:从信息源接收具有源数据的传输; 使用基于最大化数据吞吐量的量化技术来确定源数据的估计; 以及向所述信息目的地发送包括所确定的估计的消息。

    Mechanism for Controlling Data Transmission in Fragmentation Transmission Mode
    3.
    发明申请
    Mechanism for Controlling Data Transmission in Fragmentation Transmission Mode 有权
    控制碎片传输模式下数据传输的机制

    公开(公告)号:US20130148640A1

    公开(公告)日:2013-06-13

    申请号:US13315923

    申请日:2011-12-09

    IPC分类号: H04W84/02

    CPC分类号: H04L1/1809 H04L1/1854

    摘要: There is provided a mechanism for controlling a transmission of data in a fragmentation transmission mode. When fragments are transmitted in a fragmentation transmission mode, it is determined whether the fragment frame is received successfully or whether an acknowledgment message for confirming a successful transmission of the fragment frame is received. In case the acknowledgment for the successful transmission of the one fragment frame is not received, or the fragment is frame is not successfully received, the fragmentation transmission mode is maintained and a retransmission of the fragment frame is initiated.

    摘要翻译: 提供了一种用于控制分段传输模式下的数据传输的机制。 当以分段传输模式发送片段时,确定片段帧是否被成功接收,或者是否接收到用于确认片段帧的成功发送的确认消息。 在没有接收到对于一个分段帧的成功发送的确认,或者未成功接收到该分段是帧的情况下,维持分段传输模式,并且启动片段帧的重传。

    OFDM transceiver structure with time-domain scrambling
    4.
    发明授权
    OFDM transceiver structure with time-domain scrambling 失效
    具有时域扰频的OFDM收发器结构

    公开(公告)号:US07564906B2

    公开(公告)日:2009-07-21

    申请号:US10781041

    申请日:2004-02-17

    IPC分类号: H04L27/28

    CPC分类号: H04L27/2602 H04L25/03866

    摘要: A method and transceiver for wireless multicarrier communications. At the transmitter side, conventional OFDM symbols, after inverse fast Fourier Transform, are scrambled in time domain and then guard-interval (GI) inserted, up-converted at the carrier frequency for transmission. At the receiver side, after GI removal and frequency domain channel equalization, the received signal is transformed into time-domain by inverse fast Fourier Transform. The time-domain equalized signal is descrambled in time domain and then transformed back to the frequency domain before it is rate-matched, demodulated and decoded. This time-domain scrambling and descrambling method can be used in a wireless OFDM system such as WLAN, cellular OFDM, and MC-CDMA.

    摘要翻译: 一种用于无线多载波通信的方法和收发器。 在发射机侧,在快速傅里叶逆变换之后的常规OFDM符号在时域中加扰,然后在载波频率上插入保护间隔(GI)进行上变频以进行传输。 在接收机侧,GI去除和频域信道均衡后,通过快速傅里叶逆变换将接收信号转换为时域。 时域均衡信号在时域中被解扰,然后在速率匹配,解调和解码之前被转换回到频域。 该时域加扰和解扰方法可用于诸如WLAN,蜂窝OFDM和MC-CDMA的无线OFDM系统中。

    Method and Apparatus for Subblock-Wise Frequency Domain Equalization
    5.
    发明申请
    Method and Apparatus for Subblock-Wise Frequency Domain Equalization 审中-公开
    用于子块智能频域均衡的方法和装置

    公开(公告)号:US20080101451A1

    公开(公告)日:2008-05-01

    申请号:US11733503

    申请日:2007-04-10

    IPC分类号: H03K5/159

    摘要: An approach is provided for subblock-wise frequency domain equalization, wherein a data block of a received signal is segmented into at least two subblocks at a receiving end of a transmission channel. The subblocks are then equalized separately in the frequency domain, and equalized subblocks are combined to obtain an equalized signal. Thereby, Doppler induced interference can be suppressed to achieve enhanced robustness to high Doppler and compensate performance degradation due to rapidly varying channels.

    摘要翻译: 提供了一种用于子块频域均衡的方法,其中接收信号的数据块在传输信道的接收端被分段成至少两个子块。 然后在频域中分别对子块进行均衡,并且组合均衡的子块以获得均衡的信号。 因此,可以抑制多普勒感应干扰以实现对高多普勒的增强的鲁棒性并且补偿由于快速变化的信道而导致的性能下降。

    Method and apparatus providing bit-to-symbol mapping for space-time codes
    6.
    发明授权
    Method and apparatus providing bit-to-symbol mapping for space-time codes 失效
    为时空代码提供比特到符号映射的方法和装置

    公开(公告)号:US06700926B1

    公开(公告)日:2004-03-02

    申请号:US09710936

    申请日:2000-11-13

    IPC分类号: H04B138

    CPC分类号: H03M13/25 H04L1/0618

    摘要: A method for optimizing a bit-to-symbol mapping operation. The method has steps of (a) determining a most probable symbol selection error made during a space-time decoding operation; and (b) selecting a bits-to-symbol mapper such that a bit-to-symbol mapping step results in a most probable symbol selection error, made during a space-time decoding operation, causes a minimal number of bit errors. The bits-to-symbol mapping step can be carried out so as to minimize an average number of bit errors resulting from an occurrence of the most probable symbol selection error, as well as from an occurrence of at least a second most probable symbol selection error, during the space-time decoding operation. A space-time coded communications system that operates in accordance with the method is also disclosed.

    摘要翻译: 用于优化位到符号映射操作的方法。 该方法具有以下步骤:(a)确定在空时解码操作期间产生的最可能的符号选择错误; 以及(b)选择比特到符号映射器,使得比特到符号映射步骤导致在空时解码操作期间产生的最可能的符号选择错误导致最小数量的位错误。 可以执行比特到符号映射步骤,以便最小化由最可能的符号选择错误的发生导致的平均比特错误数,以及从至少第二最可能符号选择错误的发生 ,在空时解码操作期间。 还公开了根据该方法操作的时空编码通信系统。

    Calculating estimates and decisions of parameters for receiver
    7.
    发明授权
    Calculating estimates and decisions of parameters for receiver 失效
    计算接收机参数的估计和决策

    公开(公告)号:US5881097A

    公开(公告)日:1999-03-09

    申请号:US742064

    申请日:1996-10-31

    CPC分类号: H04B1/707

    摘要: A receiving method and a receiver comprising circuit elements that are arranged to calculate estimates for parameters of a received signal in two or more stages, for processing the signal iteratively by means of an observation time-slot of a given length and containing a plurality of samples, and for sliding the observation time-slot over the received samples. In order to avoid complicated matrix operations, the receiver comprises circuit elements for sliding the observation time-slot in such a way that successive observation time-slots partly overlap, and for employing, upon calculating the estimates and decisions of parameters in each observation time-slot, estimates provided by the previous observation time-slot as initial values for those samples that fall within the previous observation time-slot, and estimates provided by the previous stage for those samples that do not fall within the previous observation time-slot.

    摘要翻译: 一种接收方法和接收机,包括电路元件,其被布置成以两级或更多级计算接收信号的参数的估计,用于通过给定长度的观测时隙迭代地处理信号并且包含多个采样 并且用于在所接收的样本上滑动观察时隙。 为了避免复杂的矩阵运算,接收机包括用于滑动观测时隙的电路元件,使得连续观测时隙部分重叠,并且在计算每个观测时间段中的参数的估计和决定时, 时隙,由先前观察时隙提供的估计值作为落在先前观察时隙内的那些采样的初始值,以及由前一级为不在前一观测时隙内的那些采样提供的估计。

    Apparatus and Method for Bit Remapping in a Relay Enhanced Communication System
    10.
    发明申请
    Apparatus and Method for Bit Remapping in a Relay Enhanced Communication System 有权
    中继增强型通信系统中位重映射的装置和方法

    公开(公告)号:US20100246599A1

    公开(公告)日:2010-09-30

    申请号:US12413200

    申请日:2009-03-27

    IPC分类号: H04J3/22 H04L5/12

    摘要: An apparatus and method for bit remapping at a relay node in a communication system. In one embodiment, an apparatus includes a processor configured to remap an order of bits of a received signal from a source node to a different order of bits for a transmitted signal to a destination node when the transmitted signal is constructed with a modulation scheme different from the received signal.

    摘要翻译: 一种在通信系统中的中继节点处进行位重映射的装置和方法。 在一个实施例中,一种设备包括:处理器,被配置为当所发送的信号被构造成具有不同于...的调制方案时,将接收到的信号的比特的顺序从源节点重新映射到用于发送的信号到目的地节点的不同的比特位 接收信号。