公开(公告)号：US20110105046A1

公开(公告)日：2011-05-05

申请号：US13005195

申请日：2011-01-12

申请人： Karl James Molnar ,  Jung-fu Cheng ,  Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang

发明人： Karl James Molnar ,  Jung-fu Cheng ,  Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang

IPC分类号： H04B17/00

CPC分类号： H04L1/0019 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/20 ,  H04L25/0202 ,  H04L25/0222 ,  H04L27/2647

摘要： A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance information that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations. Channel quality information can be generated by selecting channel quality metrics according to receiver input signal quality and a desired probability of meeting a defined performance requirement over a range of propagation channel realizations, or by selecting channel quality metrics according to receiver input signal quality and particularized propagation channel realizations.

摘要翻译： 用于产生信道质量信息的方法和装置，例如可以用于发送链路自适应，提供不同的操作模式，例如当传播信道估计不可靠时可以使用的第一模式，以及可以使用的第二模式 当传播信道估计是可靠的。 在一个或多个实施例中，使用接收机性能信息来生成信道质量信息，所述接收机性能信息根据定义的信道质量度量（例如，支持的数据速率），在传播信道实现范围内针对接收机输入信号质量的不同值来表征接收机性能。 可以通过根据接收机输入信号质量选择信道质量度量并且在传播信道实现范围内满足定义的性能要求的期望概率，或者通过根据接收机输入信号质量和特定传播选择信道质量度量来生成信道质量信息 渠道实现。

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：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：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：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。

公开(公告)号：US07236514B2

公开(公告)日：2007-06-26

申请号：US09968443

申请日：2001-10-01

申请人： Greg Bottomley ,  Yi-Pin Eric Wang ,  Essam Sourour ,  Jian-Ching Guey

发明人： Greg Bottomley ,  Yi-Pin Eric Wang ,  Essam Sourour ,  Jian-Ching Guey

IPC分类号： H04B1/00

CPC分类号： H04L25/0224 ,  H04B1/71052 ,  H04B1/712 ,  H04B7/0848 ,  H04B2201/709727 ,  H04L25/0204 ,  H04W52/16

摘要： A communications signal is processed to determine a proportionality relationship between a gain of a first channel (e.g., a pilot channel) and a gain of a second channel (e.g., a traffic channel) from a model of the first channel and information recovered from the second channel according to the model of the first channel. Symbol estimates may be generated from the information received over the second channel based on the determined proportionality relationship. In some embodiments, a gain multiplier may be estimated from information received over the second channel, a channel estimate for the first channel and a noise estimate for the first channel, for example, by generating despread values from the information received over the second channel, processing the despread values according to the channel estimate to generate symbol estimates, and generating the estimate of the gain multiplier from the noise estimate and the symbol estimates. Methods, apparatus and computer program products are provided.

摘要翻译： 处理通信信号以确定来自第一信道的模型的第一信道（例如，导频信道）的增益和第二信道的增益（例如，业务信道）之间的比例关系，以及从第 第二通道根据第一通道的型号。 可以基于所确定的比例关系从通过第二信道接收的信息生成符号估计。 在一些实施例中，可以通过第二信道接收的信息，第一信道的信道估计和第一信道的噪声估计来估计增益乘数，例如，通过在第二信道上接收的信息产生解扩值， 根据信道估计处理解扩值以产生符号估计，以及根据噪声估计和符号估计生成增益乘数的估计。 提供方法，仪器和计算机程序产品。

公开(公告)号：US06714585B1

公开(公告)日：2004-03-30

申请号：US09344899

申请日：1999-06-25

申请人： Yi-Pin Eric Wang ,  Tony Ottosson ,  Gregory Edward Bottomley

发明人： Yi-Pin Eric Wang ,  Tony Ottosson ,  Gregory Edward Bottomley

IPC分类号： H04B1707

CPC分类号： H04B1/712 ,  H04B1/7117

摘要： Information encoded in a transmitted spread spectrum signal included in a composite signal is recovered. The composite signal is received from the communications medium, and correlated with a desired spreading sequence to produce a plurality of time-offset correlations. Weighting factors are generated based on knowledge of spread spectrum signals in the composite signal. The correlations are combined according to the weighting factors to estimate information encoded in the transmitted spread spectrum signal. According to one aspect, a composite channel response is estimated from knowledge of the desired spreading sequence and an impairment correlation is determined from an estimate of power of an interfering spread spectrum signal and an estimate of power of noise in the composite signal. The composite channel response and impairment correlation are used to generate the weighting factors. According to another aspect, weighting factors are iteratively generated from an estimated channel response, an estimated impairment correlation, and previously determined weighting factors. Related apparatus are also described.

摘要翻译： 在复合信号中包含的发送的扩频信号中编码的信息被恢复。 从通信介质接收复合信号，并与期望的扩展序列相关，以产生多个时间偏移相关。 基于复合信号中扩频信号的知识产生加权因子。 根据加权因子组合相关性以估计在所发射的扩频信号中编码的信息。 根据一个方面，根据期望的扩展序列的知识估计复合信道响应，并根据干扰扩频信号的功率估计和复合信号中的噪声功率的估计来确定损害相关。 复合信道响应和损伤相关用于产生加权因子。 根据另一方面，从估计的信道响应，估计的损害相关性和先前确定的加权因子迭代地产生加权因子。 还描述了相关装置。

公开(公告)号：US06631124B1

公开(公告)日：2003-10-07

申请号：US09432989

申请日：1999-11-03

申请人： Havish Koorapaty ,  Yi-Pin Eric Wang ,  Paul W. Dent

发明人： Havish Koorapaty ,  Yi-Pin Eric Wang ,  Paul W. Dent

IPC分类号： H04J300

CPC分类号： H04W72/08 ,  H04B7/2618 ,  H04W48/06

摘要： A wireless communications system including at least one base station operative to communicate with terminals on a plurality of carrier frequencies in repetitive time slots defined thereon is operated by assigning an entire time slot or a spreading-code defined subchannel of a time slot to a terminal based on a communications constraint associated with the terminal. The communications constraint may include a performance requirement, such as an information rate or an error rate, and a signal reception condition, such as signal to noise ratio. According to another aspect, a wireless communications system determines a communications constraint associated with a terminal. The system assigns a time slot, a spreading code, a coding rate and a bandwidth to the terminal based on the determined communications constraint. Preferably, the system assigns a time slot, a spreading code, a coding rate and a bandwidth to the terminal such that at least one of an available bandwidth, a number of available time slots, and a number of available spreading codes is optimized. Related apparatus are also described.

摘要翻译： 一种无线通信系统，包括至少一个基站，可操作以与在其上定义的重复时隙中的多个载波频率上的终端进行通信，通过将时隙的全部时隙或扩展码定义的子信道分配给终端来进行操作 关于与终端相关联的通信约束。 通信约束可以包括诸如信息速率或错误率的性能要求，以及诸如信噪比的信号接收条件。 根据另一方面，无线通信系统确定与终端相关联的通信约束。 系统基于所确定的通信约束向终端分配时隙，扩展码，编码率和带宽。 优选地，系统向终端分配时隙，扩展码，编码率和带宽，使得可用带宽，可用时隙的数量和可用扩展码的数量中的至少一个被优化。 还描述了相关装置。

公开(公告)号：US06185244B2

公开(公告)日：2001-02-06

申请号：US09129151

申请日：1998-08-05

申请人： Per Johan Anders Nyström ,  Karim Jamal ,  Raiz Esmailzadeh ,  Yi-Pin Eric Wang

发明人： Per Johan Anders Nyström ,  Karim Jamal ,  Raiz Esmailzadeh ,  Yi-Pin Eric Wang

IPC分类号： H04L2730

CPC分类号： H04B1/7083 ,  H04J13/107 ,  H04L7/043

摘要： A special coding scheme is disclosed for more effectively acquiring a long code and frame timing during a cell search in a CDMA communications system. A code set of length M Q-ary code words including symbols from a set of Q short codes is defined with certain properties. The primary property to be satisfied is that no cyclic shift of a code word yields a valid code word. The other properties to be satisfied are that there is a one-to-one mapping between a long code message and a valid code word, and a decoder should be able to find both the random shift (thereby implicitly finding the frame timing) and the transmitted code word (i.e., its associated long code indication message) in the presence of interference and noise, with some degree of accuracy and reasonable complexity.