公开(公告)号：US20100246701A1

公开(公告)日：2010-09-30

申请号：US12740080

申请日：2008-10-30

申请人： Dirk Gerstenberger ,  Johan Bergman ,  Christer Edholm ,  Jose Luis Pradas ,  Stefan Wager ,  Yi-Pin Eric Wang

发明人： Dirk Gerstenberger ,  Johan Bergman ,  Christer Edholm ,  Jose Luis Pradas ,  Stefan Wager ,  Yi-Pin Eric Wang

IPC分类号： H04K1/10 ,  H04B7/00

CPC分类号： H04W74/006 ,  H04W74/0833 ,  H04W74/0866

摘要： The present invention relates to fast random access methods and arrangements for the enhanced uplink dedicated channel of E-UTRAN (Evolved Universal terrestrial radio access network). A user equipment (UE) being in a low activity state sends a random access request comprising a preamble on a physical random access channel (PRACH) to a NodeB. The NodeB receives the request and sends in response to the received random access request a response comprising information associated with detection of the preamble on an acquisition indicator channel (AICH). The response comprises further in an extension of the AICH an indication of an action to be taken by the UE. In an embodiment of the present invention the action is to access the E-DCH and the response comprises configuration parameters to the E-DCH.

摘要翻译： 本发明涉及用于E-UTRAN（演进通用陆地无线电接入网络）的增强型上行链路专用信道的快速随机接入方法和装置。 处于低活动状态的用户设备（UE）将物理随机接入信道（PRACH）上的前导码的随机接入请求发送到节点B。 节点B接收请求并响应于接收到的随机接入请求发送包括与获取指示符信道（AICH）上的前导码的检测相关联的信息的响应。 该响应在AICH的扩展中进一步包括UE要采取的动作的指示。 在本发明的一个实施例中，动作是访问E-DCH，响应包括对E-DCH的配置参数。

公开(公告)号：US07773950B2

公开(公告)日：2010-08-10

申请号：US10869527

申请日：2004-06-16

申请人： Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Rajaram Ramesh

发明人： Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Rajaram Ramesh

IPC分类号： H04B17/00

CPC分类号： H04L1/20 ,  H04B2201/709727 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/206

摘要： 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.

摘要翻译： 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：US07724813B2

公开(公告)日：2010-05-25

申请号：US11321709

申请日：2005-12-29

申请人： Yi-Pin Eric Wang ,  Gregory Bottomley ,  Lennart Andersson

发明人： Yi-Pin Eric Wang ,  Gregory Bottomley ,  Lennart Andersson

IPC分类号： H04B17/00 ,  H04B7/00

CPC分类号： H04W52/286 ,  H04B2201/709727 ,  H04W52/16 ,  H04W52/325

摘要： According to method and apparatus embodiments taught herein, power control feedback is generated for a control channel signal that is received in conjunction with a reference channel signal based on the reference channel's signal strength or quality, and an estimate of a gain factor relating the control and reference channel signals. By way of non-limiting example set in a Wideband CDMA (WCDMA) context, the reference channel signal comprises a Common Pilot Channel (CPICH) signal and the control channel signal comprises a Fractional Dedicated Physical Channel (F-DPCH) signal that is transmitted at an (unknown) power gain relative to the CPICH signal.

摘要翻译： 根据本文教导的方法和装置实施例，为基于参考信道的信号强度或质量而结合参考信道信号接收的控制信道信号生成功率控制反馈，以及与控制和 参考通道信号。 通过在宽带CDMA（WCDMA）上下文中设置的非限制性示例，参考信道信号包括公共导频信道（CPICH）信号，并且控制信道信号包括传输的分数专用物理信道（F-DPCH）信号 以相对于CPICH信号的（未知）功率增益。

公开(公告)号：US20100124206A1

公开(公告)日：2010-05-20

申请号：US12572423

申请日：2009-10-02

申请人： Gregory E. Bottomley ,  Dirk Gerstenberger ,  Lars Lindbom ,  Yi-Pin Eric Wang

发明人： Gregory E. Bottomley ,  Dirk Gerstenberger ,  Lars Lindbom ,  Yi-Pin Eric Wang

IPC分类号： H04J3/00 ,  H04B1/707

CPC分类号： H04W4/06 ,  H04B1/707 ,  H04B2201/70701 ,  H04J3/00 ,  H04J13/0044 ,  H04J13/20

摘要： A pilot channel signal for time-division multiplexing with one or more traffic channel signals in a broadcast/multi-cast signal and for code-division multiplexing with a continuously transmitted pilot channel signal is described. In an exemplary method for transmitting a broadcast/multicast signal, a pilot symbol sequence is obtained for each slot of one or more frames of the broadcast/multicast signal, so that the pilot symbol sequence varies for each slot of a given frame. The pilot symbol sequence for each slot is spread with a channelization code, and the spread pilot symbol sequence for each slot is scrambled, using a scrambling code, to form a first pilot channel signal. The first pilot channel signal is transmitted so that it is time-division multiplexed with one or more traffic channel signals transmitted during each slot and code-division multiplexed with a second pilot channel signal transmitted during all slots of the one or more frames.

摘要翻译： 描述了用于与广播/多播信号中的一个或多个业务信道信号进行时分复用并用于与连续发送的导频信道信号进行码分复用的导频信道信号。 在用于发送广播/多播信号的示例性方法中，为广播/多播信号的一个或多个帧的每个时隙获得导频符号序列，使得导频符号序列对于给定帧的每个时隙而变化。 每个时隙的导频符号序列用信道化码扩展，并且使用扰码对每个时隙的扩展导频符号序列进行加扰，以形成第一导频信道信号。 发送第一导频信道信号，使其与在每个时隙期间发送的一个或多个业务信道信号进行时分复用，并与在一个或多个帧的所有时隙期间发送的第二导频信道进行码分多路复用。

公开(公告)号：US20100098030A1

公开(公告)日：2010-04-22

申请号：US12445070

申请日：2006-11-01

申请人： Yi-Pin Eric Wang ,  Jung-Fu Thomas Cheng ,  Stephen Grant ,  Leonid Krasny ,  Karl Molnar

发明人： Yi-Pin Eric Wang ,  Jung-Fu Thomas Cheng ,  Stephen Grant ,  Leonid Krasny ,  Karl Molnar

IPC分类号： H04W72/04 ,  H04L27/28

CPC分类号： H04L1/0015 ,  H04B7/0426 ,  H04B2201/709727 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0618 ,  H04W52/262 ,  H04W52/42

摘要： The present invention relates to a method and arrangement to enhance the communication performance in wireless communication systems. The method of the invention provides better adjustment of reported SINR in MIMO, and PARC-MIMO based communication systems. According to the method information relating to signal-to-interference-plus-noise ratio is determined by the user equipment and reported to the base station. The base station adjust reported SINRs using a model of the SINR dependences of power and code allocation. The dependences is modeled by a function comprising a first parameter relating only to power allocation and a second parameter relating only to code allocation. The first parameter has a power allocation exponent and the second parameter has a code allocation exponent. Both the power allocation exponent and the code allocation exponent are data stream dependent.

摘要翻译： 本发明涉及一种用于增强无线通信系统中的通信性能的方法和装置。 本发明的方法提供对MIMO中所报告的SINR的更好的调整以及基于PARC-MIMO的通信系统。 根据该方法，信号与干扰加噪声比的信息由用户设备确定并向基站报告。 基站使用功率和码分配的SINR依赖关系的模型来调整报告的SINR。 依赖关系由包括仅与功率分配相关的第一参数的功能和仅与代码分配相关的第二参数来建模。 第一个参数具有功率分配指数，第二个参数具有代码分配指数。 功率分配指数和代码分配指数都是依赖于数据流。

公开(公告)号：US20100061472A1

公开(公告)日：2010-03-11

申请号：US12514762

申请日：2006-11-13

申请人： Karl Molnar ,  Leonid Krasny ,  Jung-Fu Thomas Cheng ,  Stephen Grant ,  Yi-Pin Eric Wang

发明人： Karl Molnar ,  Leonid Krasny ,  Jung-Fu Thomas Cheng ,  Stephen Grant ,  Yi-Pin Eric Wang

IPC分类号： H04L27/28 ,  H04B7/00

CPC分类号： H04L5/005 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0684 ,  H04B2201/70701 ,  H04J13/0003 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0618 ,  H04L2001/0093

摘要： The present invention relates to control signaling in wireless communication systems. In particular, the present invention relates to control signaling in MIMO based communication systems. In the method according to the invention control information is transferred from a base station to at least one user equipment, via a plurality of common pilot channels. A set of unique pilot sequences has been pre-defined, and the base station assigns specific pilot sequences from the set of pilot sequences to specific common pilot channels, forming a pilot sequence assignment pattern representing a specific control information. The user equipment, having knowledge of the relations between pilot sequence assignment patterns and control information, interprets the received pilot sequence assignment pattern as specific control information. The method is particularly well suited for broadcast type control information.

摘要翻译： 本发明涉及无线通信系统中的控制信令。 具体地，本发明涉及基于MIMO的通信系统中的控制信令。 在根据本发明的方法中，控制信息经由多个公共导频信道从基站传送到至少一个用户设备。 已经预先定义了一组唯一的导频序列，并且基站将特定导频序列从该导频序列集合分配给特定的公共导频信道，形成表示特定控制信息的导频序列分配模式。 了解导频序列分配模式和控制信息之间的关系的用户设备将接收到的导频序列分配模式解释为特定的控制信息。 该方法特别适用于广播类型控制信息。

公开(公告)号：US20090316674A1

公开(公告)日：2009-12-24

申请号：US12141607

申请日：2008-06-18

申请人： Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Douglas A. Cairns

发明人： Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Douglas A. Cairns

IPC分类号： H04J13/04

CPC分类号： H04B1/712 ,  H04B1/7105 ,  H04B2201/709727

摘要： According to the teachings presented herein, “spreading code” knowledge is used in forming amplitude references for QAM demodulation in a DS-CDMA receiver. Here, “spreading code” broadly refers to spreading/channelization codes, scrambling codes, or the product of such codes. Further, these teachings apply to any linear DS-CDMA demodulator, such as Rake, Generalized Rake (G-Rake), or chip equalizer, and to nonlinear demodulators that employ linear filtering, such as decision feedback equalizers (DFEs). Advantageously, the determination of symbol-specific amplitude references relies on shared correlation estimates and/or shared combining weights that are common to two or more symbols of interest, thereby significantly reducing processing requirements as compared to the use of symbol-specific impairment correlation estimates.

摘要翻译： 根据本文提出的教导，在DS-CDMA接收机中使用“扩展码”知识来形成QAM解调的幅度参考。 这里，“扩展码”广泛地指扩频/信道化码，扰码或这些码的乘积。 此外，这些教导适用于任何线性DS-CDMA解调器，例如Rake，Generalized Rake（G-Rake）或码片均衡器，以及采用线性滤波的非线性解调器，例如判决反馈均衡器（DFE）。 有利地，符号特定幅度参考的确定依赖于两个或多个感兴趣符号共有的共享相关估计和/或共享组合权重，从而与使用符号特异性损害相关估计相比显着地减少了处理要求。

公开(公告)号：US20080304554A1

公开(公告)日：2008-12-11

申请号：US12135268

申请日：2008-06-09

申请人： Tracy Fulghum ,  Gregory E. Bottomley ,  Yi-Pin Eric Wang

发明人： Tracy Fulghum ,  Gregory E. Bottomley ,  Yi-Pin Eric Wang

IPC分类号： H04B1/06

CPC分类号： H04L25/03133 ,  H04B1/7103 ,  H04B1/712 ,  H04B17/327 ,  H04B2201/709727

摘要： In one of its aspects, the technology concerns a method of processing a signal which includes physical data channels which have been channelized using spreading codes. The method comprises (1) despreading unoccupied spreading codes (e.g., codes which are essentially unobscured by traffic data) included in the signal to obtain unoccupied code despread values, (2) using the unoccupied code despread values to form an impairment covariance matrix; and (3) using the impairment covariance matrix along with a channel estimate to form a processing parameter. The processing parameter can be one of combining sets and a signal quality estimate. In another of its aspects, the technology concerns a coherent, linear equalizer apparatus configured to process a signal which includes physical data channels which have been channelized using spreading codes. The equalizer apparatus comprises plural delay fingers (32) configured to despread unoccupied spreading codes included in the signal to obtain unoccupied code despread values, and a generator (60) configured to use the unoccupied code despread values to form an impairment covariance matrix.

摘要翻译： 在其一个方面，该技术涉及一种处理信号的方法，该信号包括已经使用扩展码被信道化的物理数据信道。 该方法包括：（1）解扩所述信号中包含的未被占用的扩展码（例如，由业务数据本质上被遮挡的码），以获得未占用的码解扩值，（2）使用未占用的码去扩展值形成损害协方差矩阵; 和（3）使用损伤协方差矩阵以及信道估计来形成处理参数。 处理参数可以是组合集合和信号质量估计之一。 在另一方面，该技术涉及一种相干的线性均衡器装置，其被配置为处理包括已经使用扩展码被信道化的物理数据信道的信号。 均衡器装置包括：多个延迟指（32），被配置为对包括在信号中的未占用的扩展码进行解扩以获得未占用的码去扩展值;以及生成器（60），被配置为使用未占用的码去扩展值来形成损害协方差矩阵。

公开(公告)号：US20080267265A1

公开(公告)日：2008-10-30

申请号：US11739126

申请日：2007-04-24

申请人： Douglas A. Cairns ,  Yi-Pin Eric Wang ,  Gregory E. Bottomley

发明人： Douglas A. Cairns ,  Yi-Pin Eric Wang ,  Gregory E. Bottomley

IPC分类号： H04B1/69

CPC分类号： H04B1/71055 ,  H04B1/7107 ,  H04B2201/709727

摘要： Detecting a symbol of interest comprises despreading a received signal to obtain despread values corresponding to the symbol of interest and to one or more interfering symbols, combining the despread values to generate combined values for the symbol of interest and the interfering symbols, computing spreading waveform correlations between the spreading waveform for the symbol of interest and the spreading waveforms for the interfering symbols, computing interference rejection terms representing the interference present in the combined value for the symbol of interest attributable to the interfering symbols based on the spreading waveform correlations, and generating an estimate of the symbol of interest by combining the combined values with the interference rejection terms. The interference rejection terms are computed by scaling the spreading waveform correlations by corresponding signal powers and compensating the estimates for noise. This provides a robust interference model that avoids numerical problems associated with conventional joint detection.

摘要翻译： 检测感兴趣的符号包括解扩接收信号以获得对应于感兴趣符号的解扩值和一个或多个干扰符号，组合解扩值以产生感兴趣符号和干扰符号的组合值，计算扩展波形相关性 在感兴趣符号的扩展波形和干扰符号的扩展波形之间，基于扩展波形相关性计算代表归因于干扰符号的感兴趣符号的组合值中存在的干扰的干扰抑制项， 通过将组合值与干扰抑制项组合来估计感兴趣的符号。 通过相应的信号功率缩放扩展波形相关性并补偿噪声的估计来计算干扰抑制项。 这提供了一个强大的干扰模型，可以避免与常规关节检测相关的数值问题。

公开(公告)号：US20070149233A1

公开(公告)日：2007-06-28

申请号：US11275309

申请日：2005-12-22

申请人： Yi-Pin Eric Wang ,  Stefan Parkvall

发明人： Yi-Pin Eric Wang ,  Stefan Parkvall

IPC分类号： H04Q7/20

CPC分类号： H04W52/325 ,  H04W52/16 ,  H04W52/247 ,  H04W52/36

摘要： A system and method for determining a downlink transmit power level for a downlink signaling channel such as the E-DCH HARQ Indicator Channel (E-HICH) in a cellular radio communication network, wherein the transmit power level is calculated to achieve a desired signaling message error rate. The base station determines a diversity order of an uplink control channel from a mobile station, and sets the downlink E-HICH transmit power based on the desired signaling message error rate and the diversity order of the uplink control channel. Optionally, the base station may first determine whether the cell transmitting the E-HICH is the serving cell for the High-Speed Downlink Shared Channel (HS-DSCH). If so, the base station determines the downlink transmit power level for the downlink signaling channel as an offset from the reported Channel Quality Indicator (CQI) value.

摘要翻译： 一种用于确定诸如蜂窝无线电通信网络中的E-DCH HARQ指示符信道（E-HICH）的下行链路信令信道的下行链路发射功率电平的系统和方法，其中计算发射功率电平以实现期望的信令消息 错误率。 基站确定来自移动台的上行链路控制信道的分集顺序，并且基于期望的信令消息错误率和上行链路控制信道的分集顺序来设置下行链路E-HICH发送功率。 可选地，基站可以首先确定发送E-HICH的小区是否是用于高速下行链路共享信道（HS-DSCH）的服务小区。 如果是，则基站将下行链路信令信道的下行链路发射功率电平确定为与报告的信道质量指示符（CQI）值的偏移。