公开(公告)号：US06714527B2

公开(公告)日：2004-03-30

申请号：US10174121

申请日：2002-06-18

申请人： Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira ,  Alexander Reznik

发明人： Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira ,  Alexander Reznik

IPC分类号： H04J1302

CPC分类号： H04B1/71052 ,  H04B1/7105 ,  H04B2201/70703 ,  H04B2201/70705

摘要： A plurality of communication signals have differing spreading codes. Each communication has an associated code comprising chips. For each chip of each communication, a vector of that chip convolved with an impulse response is produced. For each communication, support blocks comprising the chip vectors are produced. A number of the chip vectors in a support block is based on that communication's spreading factor. A system response matrix is assembled. The system response matrix has symbol sub-matrices. Each symbol sub-matrix comprises a support block from each communication. Data of the communications is detected using the symbol response matrix.

摘要翻译： 多个通信信号具有不同的扩展码。 每个通信具有包括芯片的相关代码。 对于每个通信的每个芯片，产生与脉冲响应卷积的该芯片的矢量。 对于每个通信，产生包括芯片向量的支持块。 支持块中的多个码片向量基于该通信的扩频因子。 组合系统响应矩阵。 系统响应矩阵具有符号子矩阵。 每个符号子矩阵包括来自每个通信的支持块。 使用符号响应矩阵检测通信的数据。

公开(公告)号：US20040001528A1

公开(公告)日：2004-01-01

申请号：US10064307

申请日：2002-07-01

申请人： InterDigital Technology Corporation

发明人： Younglok Kim ,  Jung-Lin Pan ,  Ariela Zeira ,  Alexander Reznik

IPC分类号： H04B001/69

CPC分类号： H04J13/0044 ,  H04B1/707 ,  H04B1/71052 ,  H04B1/71055 ,  H04B2201/70703 ,  H04B2201/70705

摘要： A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.

公开(公告)号：US20030215003A1

公开(公告)日：2003-11-20

申请号：US10151682

申请日：2002-05-20

发明人： Gregory E. Bottomley ,  Ali S. Khayrallah

IPC分类号： H04B001/707

CPC分类号： H04B1/7115 ,  H04B1/7117 ,  H04B2001/70935 ,  H04B2201/70705 ,  H04B2201/70707 ,  H04B2201/709727 ,  H04J13/0048

摘要： A flexible Fast Walsh Transform circuit provides configurable FWT sizes, and is suitable for use in radio receivers where the received signal may be generated using varying spreading codes and/or varying numbers of multi-codes. Such signal types are commonly encountered in wireless communication systems like those based on the Wideband CDMA (W-CDMA) or IS-2000 (cdma2000) standards, and particularly with the higher data rate provisions of those standards. In one application, a RAKE receiver includes RAKE fingers that each include one of the flexible FWT circuits, such that each finger despreads the received signal using variably sized FWTs in accordance with the characteristics of the received signal. The flexibility in FWT sizing may derive from, for example, the inclusion of separately selectable but differently sized FWT circuits, or from the inclusion of a configurable FWT circuit capable of generating different sizes of FWTs.

摘要翻译： 灵活的快速沃尔什变换电路提供可配置的FWT大小，并且适用于无线电接收机，其中接收信号可以使用变化的扩展码和/或不同数量的多码来产生。 在诸如基于宽带CDMA（W-CDMA）或IS-2000（cdma2000）标准的无线通信系统中通常遇到这样的信号类型，特别是在这些标准的较高数据速率规定中。 在一个应用中，RAKE接收机包括RAKE指，其中每个包括柔性FWT电路之一，使得每个指根据接收信号的特性使用可变大小的FWT来解扩接收信号。 FWT尺寸的灵活性可以来自例如包括单独可选择但不同尺寸的FWT电路，或者包括能够产生不同大小的FWT的可配置FWT电路。

公开(公告)号：US20030108025A1

公开(公告)日：2003-06-12

申请号：US10218158

申请日：2002-08-12

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Sung-Hoon Kim ,  Hyun-Woo Lee ,  Kook-Heui Lee ,  Ju-Ho Lee ,  Sung-Ho Choi

IPC分类号： H04B007/216

CPC分类号： H04L1/0066 ,  H04B2201/70705 ,  H04J13/0044 ,  H04J13/102 ,  H04J13/20 ,  H04L1/0025 ,  H04L1/1803 ,  H04L1/1812

摘要： A method of transmitting and receiving information about successive orthogonal codes assigned to user data for spreading on a control channel before transmission of the user data on a plurality of code channels in an HSDPA (High Speed Data Packet Access) communication system. A Node B determines an offset between a starting orthogonal code among the assigned orthogonal codes and the first of a plurality of successive orthogonal codes available to the HSDPA communication system, determines the number of the assigned orthogonal codes counted from the starting orthogonal code being the number of the code channels, forms orthogonal code information indicating the offset and the number of the orthogonal codes, and transmits the orthogonal code information to a UE.

摘要翻译： 一种在HSDPA（高速数据分组接入）通信系统中的多个代码信道上发送用户数据之前，发送和接收分配给用户数据的信息的方法，用于在控制信道上进行扩展。 节点B确定所分配的正交码中的起始正交码与可用于HSDPA通信系统的多个连续正交码中的第一个之间的偏移量，确定从起始正交码计数的所分配的正交码的数量为数字 形成指示偏移的正交码信息和正交码的数量，并将正交码信息发送给UE。

公开(公告)号：US20030103491A1

公开(公告)日：2003-06-05

申请号：US10157159

申请日：2002-05-30

发明人： Frank Frederiksen ,  Troels Emil Kolding

IPC分类号： H04L012/28

CPC分类号： H04B1/707 ,  H04B2201/70705 ,  H04J13/00 ,  H04J13/0077 ,  H04J13/16

摘要： A method for compact representation of multi-code signaling that includes determining a number of multi-codes and a code offset. A codeword is formulated that includes a code group indicator and an offset indicator. The codeword represents a compact representation of multi-code signaling and is formulated and may be decoded without the need for a look-up table.

摘要翻译： 一种用于紧密表示多码信令的方法，包括确定多码和码偏移的数量。 制定了包括代码组指示符和偏移指示符的码字。 码字表示多码信令的紧凑表示，并且被配制并且可以被解码而不需要查找表。

公开(公告)号：US06563810B1

公开(公告)日：2003-05-13

申请号：US09409981

申请日：1999-09-30

申请人： Giovanni E. Corazza

发明人： Giovanni E. Corazza

IPC分类号： H04B7216

CPC分类号： H04W52/367 ,  H04B2201/70705 ,  H04L1/0002 ,  H04W28/22 ,  H04W36/18 ,  H04W52/26 ,  H04W52/267 ,  H04W52/343 ,  H04W52/40 ,  H04W72/04

摘要： Method and apparatus for performing transmission data rate allocation in a high speed wireless communications network. A macro control loop with the network of base stations on one side and all the subscriber stations on the other side. Subscriber station selects a rate based on the amount of data queued for transmission (100). Adjusts this rate based on the available power headroom of the subscriber station (102). This adjusted transmission rate is then adjusted again to account for protection of base stations in the candidate set of the subscriber station (104). This rate is then adjusted in accordance with busy tone signals indicative of the loading conditions of active set base stations of the subscriber station (108). The base stations react to these action by refreshing measurements of their instantaneous traffic load and providing feedback in the form of soft busy tones. The algorithm is named Closed Loop Resource Allocation.

公开(公告)号：US20020176392A1

公开(公告)日：2002-11-28

申请号：US10100997

申请日：2002-03-19

发明人： Alexander Reznik ,  Timothy J. Lubecki ,  Ariela Zeira

IPC分类号： H04B007/216

CPC分类号： H04B1/7105 ,  H04B1/7093 ,  H04B1/71052 ,  H04B2201/70703 ,  H04B2201/70705

摘要： A multiuser detector that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser detector is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The system and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.

摘要翻译： 一种多用户检测器，其检测并解码具有不同扩频因子的同步或异步CDMA子信道，降低了计算复杂度。 多用户检测器与使用Cholesky分解的ZF-BLE，MMSE，去相关检测器等兼容，以最小化数字运算。 系统和方法将表示各个用户的响应特性的系统传输响应矩阵的列排列成表示针对给定的接收数据块的多个匹配滤波器响应的总系统传输响应矩阵。 本发明结合Cholesky分解在并行匹配滤波之前减少了所需数学运算的数量。

公开(公告)号：US20020131532A1

公开(公告)日：2002-09-19

申请号：US09834135

申请日：2001-04-12

发明人： Richard Chi ,  Da-Shan Shiu

IPC分类号： H04L027/06

CPC分类号： H04B1/7103 ,  H04B2201/70705 ,  H04L25/0262 ,  H04L25/03171

摘要： Techniques for detecting received sequences when certain signaling characteristics (e.g., transport formats, rates) are not known a priori at the receiver. In one method, a sequence for a transmitted message is received, and a metric value is computed for each of a number of hypothesized messages corresponding to a number of hypotheses for the unknown signaling characteristic of the transmitted message. The metric value is computed based on a MAP metric derived to approximately maximize a joint a posteriori probability between the received sequence and the hypothesized messages. The hypothesized message having the best metric value is selected as the transmitted message. The specific form of the MAP metric is dependent on the particular signaling scheme used to map the message to its corresponding sequence, and may be used for blind transport format detection (BTFD) in a W-CDMA system and blind rate detection in an IS-95 CDMA system.

摘要翻译： 当某些信令特征（例如，传输格式，速率）在接收机处不知道时，用于检测接收到的序列的技术。 在一种方法中，接收用于发送的消息的序列，并且针对与发送的消息的未知信令特性的假设数量相对应的多个假设消息中的每一个计算度量值。 基于导出的MAP度量计算度量值，以近似地使接收到的序列与假设消息之间的联合后验概率最大化。 选择具有最佳度量值的假设消息作为发送消息。 MAP度量的具体形式取决于用于将消息映射到其对应序列的特定信令方案，并且可以用于W-CDMA系统中的盲传输格式检测（BTFD），并且在IS- 95 CDMA系统。

公开(公告)号：US20020131483A1

公开(公告)日：2002-09-19

申请号：US10007153

申请日：2001-12-04

发明人： Aris Papasakellariou

IPC分类号： H04B001/707 ,  H04B001/69

CPC分类号： H04B1/7115 ,  H04B1/712 ,  H04B2201/70705

摘要： Spreading factor (SF) estimation in a code division multiple access (CDMA) spread spectrum system where the SF of the data channel may change on a frame-by-frame basis to reflect a change in the data rate for each corresponding frame. The SF estimation methods despread the data channel for all possible SF values, perform maximal ratio combining (MRC) when resolved multipaths occur, take the absolute value of the MRC results, and average these absolute values over many symbol periods to obtain decision statistics for the various SF's. The SF estimation methods then post-process these decision statistics and make a SF decision.

摘要翻译： 在码分多址（CDMA）扩频系统中的扩频因子（SF）估计，其中数据信道的SF可以逐帧地改变以反映每个相应帧的数据速率的变化。 SF估计方法对所有可能的SF值的数据信道进行解扩，在分解多路径发生时执行最大比组合（MRC），获取MRC结果的绝对值，并在许多符号周期内平均这些绝对值，以获得 各种SF的。 然后，SF估算方法对这些决策统计进行后处理，并作出SF决策。

公开(公告)号：US20020097697A1

公开(公告)日：2002-07-25

申请号：US09986216

申请日：2001-10-22

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Sang-Min Bae ,  Young-Kwon Cho ,  Ho-Kyu Choi ,  Youn-Sun Kim ,  Jin-Woo Heo ,  Jong-Yoon Hwang ,  Hyun-Woo Lee ,  Sung-Jin Kim ,  Chu-Hyon Yi ,  Sun-Gi Ku ,  Hwan-Joon Kwon ,  Ju-Ho Lee

IPC分类号： H04B007/216 ,  H04J003/16

CPC分类号： H04B7/264 ,  H04B1/707 ,  H04B2201/70705

摘要： Disclosed is a mobile station for determining a data rate for a packet data service in a mobile communication system including a base station, and the mobile station being provided with a voice service and a packet data service from the base station. In the mobile station, a receiver receives orthogonal code allocation information indicating the number of orthogonal codes allocated for the packet data service, a measurer measures a CIR using a received pilot channel, and a controller determines a data rate corresponding to the measured CIR, controls the determined data rate based on the number of the allocated orthogonal codes, and determines a controlled data rate.

摘要翻译： 公开了一种用于在包括基站的移动通信系统中确定分组数据业务的数据速率的移动台，并且该移动站被提供有来自基站的语音服务和分组数据服务。 在移动站中，接收机接收指示分配给分组数据业务的正交码数量的正交码分配信息，测量者使用接收到的导频信道测量CIR，并且控制器确定与测量的CIR对应的数据速率，控制 基于所分配的正交码的数量确定的数据速率，并确定受控的数据速率。