公开(公告)号：US20050195889A1

公开(公告)日：2005-09-08

申请号：US10795101

申请日：2004-03-05

Applicant: Stephen Grant ,  Jung-Fu Cheng ,  Leonid Krasny ,  Karl Molnar ,  Yi-Pin Wang

Inventor： Stephen Grant ,  Jung-Fu Cheng ,  Leonid Krasny ,  Karl Molnar ,  Yi-Pin Wang

IPC: H04B1/707 ,  H04J99/00

CPC classification number: H04B1/707 ,  H04B2201/709727

Abstract: A receiver includes a receiver circuit that decodes multiple signals of interest contained in a composite received signal. The receiver comprises a plurality of successive signal detection stages to detect respective signals contained in the composite received signal. Each detection circuit comprises at least one Generalized RAKE combining circuit and generates a detected signal at an output. Each but the last stage further comprises a signal regeneration circuit that cancels the signal of interest detected by that stage from a stage input signal provided to the next stage such that successive detection of the signals of interest benefits from cumulative cancellation of the previously detected signals.

Abstract translation: 接收机包括对包含在复合接收信号中的感兴趣的多个信号进行解码的接收机电路。 接收机包括多个连续的信号检测级，以检测包含在复合接收信号中的各个信号。 每个检测电路包括至少一个通用RAKE组合电路，并在输出端产生检测信号。 除了最后阶段之外，每个除了最后阶段还包括信号再生电路，该信号再生电路从提供给下一级的级输入信号中消除由该级检测到的感兴趣的信号，使得感兴趣的信号的连续检测从先前检测到的信号的累积消除中获益。

公开(公告)号：US20050181739A1

公开(公告)日：2005-08-18

申请号：US11045877

申请日：2005-01-28

Applicant: Leonid Krasny ,  Karl Molnar ,  Jung-Fu Cheng ,  Stephen Grant ,  Yi-Pin Wang

Inventor： Leonid Krasny ,  Karl Molnar ,  Jung-Fu Cheng ,  Stephen Grant ,  Yi-Pin Wang

IPC: H04B7/06 ,  H04L1/00 ,  H04L1/06 ,  H04B1/00 ,  H03C7/02 ,  H04B1/02 ,  H04B7/00 ,  H04B7/02 ,  H04L27/04 ,  H04L27/12 ,  H04L27/20

CPC classification number: H04B7/0686 ,  H04B7/061 ,  H04B7/0626 ,  H04B7/065 ,  H04B7/0689 ,  H04B7/0691 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/003 ,  H04L1/06

Abstract: An adaptive transmission scheme provides multiple levels of adaptation. At a first level, a selection is made between a limited feedback or open loop scheme and a rich feedback or closed loop scheme. At a second level of adaptation, a diversity mode is selected. Additional levels of adaptation could be employed.

Abstract translation: 自适应传输方案提供多级适配。 在第一级，在有限反馈或开环方案和丰富的反馈或闭环方案之间进行选择。 在第二级适配时，选择分集模式。 可以采用额外的适应水平。

公开(公告)号：US20100103983A1

公开(公告)日：2010-04-29

申请号：US12260641

申请日：2008-10-29

Applicant: Yi-Pin Wang ,  Gregory E. Bottomley

Inventor： Yi-Pin Wang ,  Gregory E. Bottomley

IPC: H04B1/707

CPC classification number: H04J13/20 ,  H04B1/7105

Abstract: A base station is described herein that uses a root spreading code based code assignment to transmit signals to a mobile station. The mobile station can then suppress intra-block interference by effectively using a joint detection technique or a non-linear equalization technique to detect the transmitted symbols.

Abstract translation: 本文描述了使用基于根扩展码的代码分配来向移动台发送信号的基站。 移动台然后可以通过有效地使用联合检测技术或非线性均衡技术来检测所发送的符号来抑制块内干扰。

公开(公告)号：US07599698B2

公开(公告)日：2009-10-06

申请号：US10747752

申请日：2003-12-29

Applicant: Jung-Fu Cheng ,  Yi-Pin Wang ,  Stephen J. Grant ,  Leonid Krasny ,  Karl J. Molnar

Inventor： Jung-Fu Cheng ,  Yi-Pin Wang ,  Stephen J. Grant ,  Leonid Krasny ,  Karl J. Molnar

IPC: H04W72/00

CPC classification number: H04W8/24 ,  H04W24/00

Abstract: A method of supplying channel information in a wireless communication system comprises a mobile terminal normally providing a basic channel report to the wireless communication system; the mobile terminal receiving at least one common feedback criterion broadcast to a plurality of mobile terminals; the mobile terminal determining if the mobile terminal satisfies a condition based on the at least one common feedback criterion; and the mobile terminal selectively providing an enhanced channel report to the wireless communication system based on the determining. The basic channel report may comprise information related to a first set of channel parameters, and the enhanced channel report may provide greater detail on the first set of channel parameters and/or relate to a second set of channel parameters. A method of a base station adaptively controlling channel information reporting by broadcast transmitting at least one common feedback criterion is also presented.

Abstract translation: 一种在无线通信系统中提供频道信息的方法包括通常向无线通信系统提供基本频道报告的移动终端; 所述移动终端接收向多个移动终端广播的至少一个公共反馈准则; 所述移动终端基于所述至少一个公共反馈标准来确定所述移动终端是否满足条件; 并且所述移动终端基于所述确定选择性地向所述无线通信系统提供增强的信道报告。 基本信道报告可以包括与第一组信道参数相关的信息，并且增强信道报告可以提供关于第一组信道参数的更多细节和/或涉及第二组信道参数。 还提出了一种通过广播发送至少一个公共反馈标准自适应地控制信道信息报告的基站的方法。

公开(公告)号：US07389099B2

公开(公告)日：2008-06-17

申请号：US11112578

申请日：2005-04-22

Applicant: Carmela Cozzo ,  Yi-Pin Wang ,  Håkan B Eriksson ,  Gregory E. Bottomley ,  Ali S. Khayrallah

Inventor： Carmela Cozzo ,  Yi-Pin Wang ,  Håkan B Eriksson ,  Gregory E. Bottomley ,  Ali S. Khayrallah

IPC: H04B1/18

CPC classification number: H04B1/7107 ,  H04B2201/709727

Abstract: A method and apparatus in a radio receiver for canceling interference from a high power, high data rate signal received in a combined signal that includes a contribution from the high power signal and a contribution from a lower power signal. It is first determined whether the high power signal was correctly received. A CRC checksum may be used to determine whether the high power signal was received with a good reliability. Thereafter, the contribution of the high power signal is removed from the received signal only if the high power signal was correctly received. The contribution of the high power signal may be removed by hard-subtracting the contribution of the high power signal from the received signal if all of the bits of the checksum are correct, and soft-subtracting the contribution of the high power signal from the received signal if most, but not all, of the bits in the checksum are correct.

Abstract translation: 一种无线电接收机中的方法和装置，用于消除在包括来自高功率信号的贡献和来自低功率信号的贡献的组合信号中接收的高功率，高数据速率信号的干扰。 首先确定高功率信号是否正确接收。 可以使用CRC校验和来确定高功率信号是否以良好的可靠性被接收。 此后，仅当正确接收到高功率信号时，才从接收信号中去除高功率信号的贡献。 如果校验和的所有比特都正确，则可以通过从接收到的信号中硬减去高功率信号的贡献来消除高功率信号的贡献，并且从所接收到的功率信号中减去高功率信号的贡献 信号，如果校验和中的大多数但不是全部的位是正确的。

公开(公告)号：US20070244953A1

公开(公告)日：2007-10-18

申请号：US11357816

申请日：2006-02-17

Applicant: Yi-Pin Wang ,  Gregory Bottomley ,  Andres Reial

Inventor： Yi-Pin Wang ,  Gregory Bottomley ,  Andres Reial

IPC: G06F7/38

CPC classification number: G06F7/5443 ,  H04B2201/709727

Abstract: A method and corresponding circuit for determining a final result for a desired series of multiply-and-accumulate (MAC) operations are based on counting the occurrence of products in the desired series of MAC operations, multiplying the counts by their corresponding products to obtain partial sums, and adding the partial sums to obtain the final result. MAC processing as taught herein can be applied to a wide range of applications, such as received signal processing in wireless communication for computationally efficient (and high-rate) generation of interference correlation estimates and/or equalization filter values for a received communication signal.

Abstract translation: 用于确定期望的一系列乘法和累加（MAC）操作的最终结果的方法和相应的电路是基于计算所需系列MAC操作中的乘积的发生，将计数乘以其相应乘积以获得部分 总和，并添加部分和以获得最终结果。 如本文教导的MAC处理可以应用于广泛的应用，例如用于无线通信中的接收信号处理，用于接收的通信信号的计算有效（和高速率）产生干扰相关估计和/或均衡滤波器值。

公开(公告)号：US20070104254A1

公开(公告)日：2007-05-10

申请号：US11566820

申请日：2006-12-05

Applicant: Gregory Bottomley ,  Yi-Pin Wang

Inventor： Gregory Bottomley ,  Yi-Pin Wang

IPC: H04B1/00

CPC classification number: H04B1/712 ,  H04B1/7107 ,  H04B1/7115 ,  H04B2201/709727 ,  H04J13/0077

Abstract: Multi-transmitter interference caused by one or more interfering own-cell and/or other-cell transmitters is reduced in a RAKE-based receiver. The RAKE-based receiver comprises a plurality of RAKE fingers, a processor and a combiner. The plurality of RAKE fingers are configured to despread received symbols, wherein a delay for a first one of the plurality of RAKE fingers corresponds to a symbol of interest transmitted by a first transmitter and a delay for a second one of the plurality of RAKE fingers corresponds to an interfering symbol transmitted by a second transmitter. The processor is configured to determine a cross-correlation between the symbol of interest and the interfering symbol. The combiner is configured to combine the symbol of interest with the interfering symbol using the cross-correlation to reduce interference attributable to the interfering symbol from the symbol of interest.

Abstract translation: 在基于RAKE的接收机中减少由一个或多个干扰自身小区和/或其他小区发射机引起的多发射机干扰。 基于RAKE的接收机包括多个RAKE指，处理器和组合器。 多个RAKE拨号被配置为对接收的符号进行解扩，其中多个RAKE指中的第一个RAKE指的延迟对应于由第一发送器发送的感兴趣的符号，并且多个RAKE指中的第二个对应的延迟对应 到由第二发射机发射的干扰符号。 处理器被配置为确定感兴趣的符号和干扰符号之间的互相关。 组合器被配置为使用互相关来组合感兴趣的符号与干扰符号，以减少归因于感兴趣符号的干扰符号的干扰。

公开(公告)号：US20060245476A1

公开(公告)日：2006-11-02

申请号：US11115491

申请日：2005-04-27

Applicant: Yi-Pin Wang ,  Jung-Fu Cheng

Inventor： Yi-Pin Wang ,  Jung-Fu Cheng

IPC: H04B1/707

CPC classification number: H04J13/20 ,  H04B1/7105 ,  H04B1/71052 ,  H04B1/71055 ,  H04B1/71072 ,  H04J13/0044 ,  H04L25/03305

Abstract: A joint detector that improves the performance of receiving a downlink control channel signal for a near-end mobile terminal in the presence of a stronger control channel signal addressed to a far-end mobile terminal sharing the same OVSF, or channelization, code through the use of orthogonal signature sequences. Depending on the specific embodiment, the joint detector may produce the desired bits for the control signal of interest, or may produce detected bits for all control signals sharing the same OVSF code. The joint detector despreads and combines the received code-multiplexed signal, utilizing knowledge of the cross correlations of the set of signature sequences and time-varying channel coefficients to alleviate performance degradation caused by interference from other signals. In various embodiments, the joint detector may be implemented as a modified decorrelating detector, a modified MMSE detector, a modified LS estimator detector, a successive interference-canceling detector, or a jointly hypothesized detector.

Abstract translation: 一种联合检测器，其在存在针对共享相同OVSF的远端移动终端的更强控制信道信号或通过使用的信道化代码的情况下，改善了对于近端移动终端接收下行链路控制信道信号的性能 的正交特征序列。 根据具体实施例，联合检测器可以产生用于感兴趣的控制信号的期望比特，或者可以产生用于共享相同OVSF码的所有控制信号的检测比特。 联合检测器利用所述签名序列集合和时变信道系数的互相关的知识来对接收的码复用信号进行解扩和合并，以减轻由其他信号的干扰引起的性能下降。 在各种实施例中，联合检测器可以被实现为修改的去相关检测器，修改的MMSE检测器，修改的LS估计器检测器，连续的干扰消除检测器或联合假设的检测器。

公开(公告)号：US20050282500A1

公开(公告)日：2005-12-22

申请号：US10869527

申请日：2004-06-16

Applicant: Yi-Pin Wang ,  Gregory Bottomley ,  Rajaram Ramesh

Inventor： Yi-Pin Wang ,  Gregory Bottomley ,  Rajaram Ramesh

IPC: H04B7/005 ,  H04L1/00 ,  H04L1/20 ,  H04Q7/20

CPC classification number: H04L1/20 ,  H04B2201/709727 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/206

Abstract: A receiver circuit suppresses effects of “benign” impairment from the calculation of received signal quality estimates, such that the estimate depends primarily on the effects of non-benign impairment. For example, a received signal may be subject to same-cell and other-cell interference plus noise, which is generally modeled using a Gaussian distribution, and also may be due to certain forms of self-interference, such as quadrature phase interference arising from imperfect derotation of the pilot samples used to generate channel estimates for the received signal. Such interference generally takes on a distribution defined by the pilot signal modulation, e.g., a binomial distribution for binary phase shift keying modulation. Interference arising from such sources is relatively “benign” as compared to Gaussian interference and thus should be suppressed or otherwise discounted in signal quality calculations. Suppression may be based on subtracting benign impairment correlation estimates from total impairment correlation estimates, or on filtering the benign impairment in channel estimation.

Abstract translation: 接收机电路抑制从接收到的信号质量估计的计算中的“良性”损伤的影响，使得估计主要取决于非良性损伤的影响。 例如，接收到的信号可以经受相同小区和其他小区干扰加噪声，其通常使用高斯分布来建模，并且还可能是由于某些形式的自干扰，例如由 用于产生接收信号的信道估计的导频样本的不完全解旋。 这种干扰通常采用由导频信号调制定义的分布，例如二进制相移键控调制的二项分布。 与高斯干扰相比，从这些源产生的干扰相对“良性”，因此在信号质量计算中应被抑制或以其他方式折扣。 抑制可以基于从总损伤相关性估计中减去良性损伤相关估计，或者在滤波信道估计中的良性损伤。

公开(公告)号：US20050163199A1

公开(公告)日：2005-07-28

申请号：US10672492

申请日：2003-09-26

Applicant: Yi-Pin Wang

Inventor： Yi-Pin Wang

IPC: H04L25/02 ,  H04L27/38 ,  H04B1/707

CPC classification number: H04B1/712 ,  H04B2201/709727 ,  H04L25/0226 ,  H04L27/3809

Abstract: An exemplary receiver demodulates an amplitude modulated data signal received in association with a reference signal, wherein a transmit power of the data signal is unknown to the receiver circuit, by determining a scaling factor based on the reference and data signals. Thus, an exemplary receiver estimates scaling factors indicative of the received amplitude of a data channel signal that is transmitted at a power different from that of the reference channel being used to estimate the radio channel properties. The scaling factor may be used to correct the amplitude of information symbols recovered from a received data signal such that they are moved closer in amplitude to intended points within an amplitude modulation constellation and/or to scale nominal points in a reference constellation used in demodulating the received symbols.

Abstract translation: 示例性接收机解调与参考信号相关联接收的幅度调制数据信号，其中通过基于参考和数据信号确定缩放因子，数据信号的发射功率对于接收机电路是未知的。 因此，示例性接收机估计指示以与用于估计无线电信道属性的参考信道不同的功率发送的数据信道信号的接收幅度的缩放因子。 缩放因子可以用于校正从接收的数据信号恢复的信号符号的幅度，使得它们在幅度上移动到幅度调制星座图中的预期点更接近，和/或缩放用于解调所述信号的参考星座中的标称点 收到的符号。