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1. 发明授权

US06788708B1 Code synchronization unit and method 失效
标题翻译：代码同步单元和方法
公开(公告)号：US06788708B1
公开(公告)日：2004-09-07
申请号：US09583898
申请日：2000-06-01
申请人： Doron Rainish , David Ben-Eli , David Burshtein , Shlomo Shamai
发明人： Doron Rainish , David Ben-Eli , David Burshtein , Shlomo Shamai
IPC分类号： H04J1300
CPC分类号： H04B1/707
摘要： A pilot acquisition unit for code division multiple access (CDMA) communication systems is provided which includes a fast Hadamard transform (FHT) unit and a pre-Hadamard processing unit. The FHT unit determines the quality, in accordance with a metric, of each of a set of possible pseudo-random number (PN) loadings and the pre-Hadamard processing unit generates a vector u per set of PN loadings. The vector u defines a quality metric of a received pilot signal with the set of possible PN loadings, the pre-Hadamard processing unit providing the vector u to the FHT unit.
摘要翻译：提供了一种用于码分多址（CDMA）通信系统的导频获取单元，其包括快速Hadamard变换（FHT）单元和前Hadamard处理单元。 FHT单元根据度量，确定一组可能的伪随机数（PN）加载中的每一个的质量，并且前哈达玛处理单元在每个PN加载集合中生成向量u。矢量u使用一组可能的PN加载来定义接收到的导频信号的质量度量，前Hadamard处理单元向FHT单元提供向量u。

2. 发明授权

US06690680B1 Communication system signal synchronization techniques 有权
标题翻译：通信系统信号同步技术
公开(公告)号：US06690680B1
公开(公告)日：2004-02-10
申请号：US09450215
申请日：1999-11-29
申请人： Daniel J. Marchok , Samir Kapoor
发明人： Daniel J. Marchok , Samir Kapoor
IPC分类号： H04J1300
CPC分类号： H04L5/023 , H04L5/1453 , H04L27/2613 , H04L27/2657 , H04L27/2662 , H04L27/2666
摘要： A communications system includes a transmitter that generates symbols in a plurality of bins using a first timing signal and generates a reference signal by using the first timing signal. The transmitter transmits the symbols and the reference signal carried by a first signal, which is frequency multiplexed with a second signal from another transmission source. A demultiplexer frequency demultiplexes the first signal, which is downconverted in response to a control signal to generate a frequency downconverted signal, and a processing circuit is responsive to the frequency downconverted signal to identify the predetermined bin and to generate the control signal in response to the identification of the predetermined bin.
摘要翻译：通信系统包括使用第一定时信号在多个箱中生成符号的发送器，并且通过使用第一定时信号产生参考信号。发射机发送由与来自另一个发射源的第二信号频率复用的第一信号携带的符号和参考信号。解复用器频率解复用第一信号，其响应于控制信号而被下变频以产生下变频信号，并且处理电路响应于下变频信号以识别预定的存储区并且响应于所述控制信号产生控制信号识别预定仓。

3. 发明授权

US06690652B1 Adaptive power control in wideband CDMA cellular systems (WCDMA) and methods of operation 失效
标题翻译：宽带CDMA蜂窝系统（WCDMA）中的自适应功率控制和操作方法
公开(公告)号：US06690652B1
公开(公告)日：2004-02-10
申请号：US09413991
申请日：1999-10-07
申请人： Ali S. Sadri
发明人： Ali S. Sadri
IPC分类号： H04J1300
CPC分类号： H04W52/267 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0059 , H04L1/0071 , H04W52/221 , H04W52/223 , H04W52/42
摘要： A WCDMA system includes a Base Station (BS) transmitter, or forward transmitter and a pilot channel that transmits control signals between the BS and a Mobile Station (MS) to reconfigure their transmitter/receiver. Reconfiguration is performed according to the prediction of the channel attenuation and the threshold set at the BS or MS based on its channel power probability density function separated into three distinct equal probable regions. In one embodiment, Seamless Rate Change (SRC)/Transmitter Power Control (TPC) logic uses the predicted channel attenuation to signal both the transmitter and the receiver in a channel to reconfigure their transmit power level according to the power density function (pdf) of the channel power and threshold level. A transmission rate is reduced when the power level is below the threshold and increased when the channel power is above threshold. The pilot channel is used to signal the mobile station and the base station.
摘要翻译： WCDMA系统包括基站（BS）发射机或前向发射机和在BS与移动台（MS）之间传输控制信号以重新配置其发射机/接收机的导频信道。根据信道衰减的预测和基于其信道功率概率密度函数的BS或MS设置的阈值来进行重新配置，该函数被分成三个不同的相等可能区域。在一个实施例中，无缝速率改变（SRC）/发射机功率控制（TPC）逻辑使用预测的信道衰减来在信道中向发射机和接收机两者发信号，以根据功率密度函数（pdf）重新配置其发射功率电平通道功率和阈值水平。当功率电平低于阈值时，当信道功率高于阈值时，传输速率降低。导频信道用于向移动台和基站发信号。

4. 发明授权

US06654365B1 Reduced complexity trellis-based multiuser detector for CDMA 失效
标题翻译：降低复杂度的基于网格的多用户检测器
公开(公告)号：US06654365B1
公开(公告)日：2003-11-25
申请号：US09256716
申请日：1999-02-24
申请人： Randal R. Sylvester , Thomas R. Giallorenzi
发明人： Randal R. Sylvester , Thomas R. Giallorenzi
IPC分类号： H04J1300
CPC分类号： H04L25/03331 , H04B1/7103 , H04L25/0204 , H04L25/021 , H04L25/0242 , H04L25/03184 , H04L25/03216 , H04L25/0328 , H04L25/03299
摘要： A maximum likelihood (ML) detector provides improved performance in the presence of multiple user interference (MUI), particularly performance of a multiuser receiver for asynchronous CDMA. The detector can be implemented using a Viterbi algorithm, this greatly reducing system sensitivity to MUI. An approximation to the ML detector provides a sparse trellis search based on the structure of the ML detector. The resulting detector, which may be referred to as a reduced-complexity recursive detector (RCRD), has a dynamic structure that allows a trade-off between complexity and performance. Use is made of a unique metric to define the trellis-structure and the M-algorithm to reduce the number of surviving paths. The metric calculation is then repeated at decision points to provide soft-decision information for further signal processing, soft-decision decoding of an error-correction code, or iterative reception of the multiuser signal.
摘要翻译：最大似然（ML）检测器在多用户干扰（MUI）的存在下提供改进的性能，特别是用于异步CDMA的多用户接收机的性能。检测器可以使用维特比算法实现，大大降低了系统对MUI的敏感度。 ML检测器的近似值提供了基于ML检测器结构的稀疏网格搜索。所得到的检测器（其可以被称为降低复杂度递归检测器（RCRD））具有允许在复杂度和性能之间进行权衡的动态结构。使用唯一的度量来定义网格结构和M算法来减少幸存路径的数量。然后在决策点重复度量计算，以提供用于进一步的信号处理，纠错码的软判决解码或多用户信号的迭代接收的软判决信息。

5. 发明授权

US06639906B1 Multichannel demodulator 失效
标题翻译：多通道解调器
公开(公告)号：US06639906B1
公开(公告)日：2003-10-28
申请号：US08987172
申请日：1997-12-09
申请人： Jeffrey A. Levin
发明人： Jeffrey A. Levin
IPC分类号： H04J1300
CPC分类号： H04B1/70752 , H04B1/70735 , H04B1/70753 , H04B1/70756 , H04B1/708 , H04B1/7085 , H04B1/7113 , H04B2001/70935
摘要： A system and method for performing the digital receive processing for multiple signals received over the same RF band is described. In a preferred embodiment of the invention, digital RF samples are stored in a queue which is accessed by a searcher and demodulator. The searcher and demodulator are preferably located on the same integrated circuit along with the queue. The demodulator demodulates a set of reverse link signals stored within the queue where each reverse link signal is received with at a particular time offset and processed using a particular channel code. The searcher periodically searches for reverse link signals not being processed by the demodulator, and for access requests transmitted via the access channel. The searcher preferably searches during the worthy power control groups of each reverse link signal, which corresponds to the two of sixteen power control groups transmitted during, an eighth rate frame.
摘要翻译：描述了用于对通过相同RF频带接收的多个信号执行数字接收处理的系统和方法。在本发明的优选实施例中，数字RF样本被存储在由搜索器和解调器访问的队列中。搜索器和解调器优选地与队列一起位于同一集成电路上。解调器解调存储在队列中的一组反向链路信号，其中每个反向链路信号在特定时间偏移处被接收并且使用特定信道码进行处理。搜索者周期性地搜索未被解调器处理的反向链路信号，以及用于经由接入信道发送的接入请求。搜索者优选地在每个反向链路信号的有价值的功率控制组中搜索，其对应于在第八速率帧期间发送的十六个功率控制组中的两个。

6. 发明授权

US06608818B1 Radio link protocol enhancements to reduce setup time for data calls 有权
标题翻译：无线链路协议增强，减少数据呼叫的建立时间
公开(公告)号：US06608818B1
公开(公告)日：2003-08-19
申请号：US09437417
申请日：1999-11-10
申请人： Nischal Abrol , Nikolai K. N. Leung
发明人： Nischal Abrol , Nikolai K. N. Leung
IPC分类号： H04J1300
CPC分类号： H04L1/1858 , H04L1/1809 , H04L1/1829 , H04L1/1848 , H04L1/20 , H04W76/10
摘要： An improved method and system for determining round-trip time (RTT) during a radio link protocol (RLP) wireless communication link. The RTT estimate is negotiated by both sides of the RLP communication link without the need for the 3-way handshake generally required for RLP synchronization. The method includes techniques used by both sides of the RLP communication link to dynamically update and refine their initial, negotiated RTT estimates.
摘要翻译：一种在无线电链路协议（RLP）无线通信链路中确定往返时间（RTT）的改进方法和系统。 RTT估计由RLP通信链路的双方协商，而不需要RLP同步通常需要的3次握手。该方法包括RLP通信链路的双方使用的技术来动态地更新和改进其初始协商的RTT估计。

7. 发明授权

US06526065B1 Code management system and method for CDMA communication networks 有权
标题翻译： CDMA通信网络的码管理系统和方法
公开(公告)号：US06526065B1
公开(公告)日：2003-02-25
申请号：US09234871
申请日：1999-01-21
申请人： Ray-Guang Cheng
发明人： Ray-Guang Cheng
IPC分类号： H04J1300
CPC分类号： H04J13/0044 , H04J13/20
摘要： A system and method for assigning channelization (spreading) codes in CDMA communication networks using spread spectrum modulation techniques such that a minimum number of spreading codes are assigned by using an optimal codeword. A system codeword of a predetermined weight representing spreading codes for different spreading factors in the spread spectrum communication system is used, in conjunction with a user defined weight, to determine the optimal codeword such that a minimum number of spreading codes are assigned therewith.
摘要翻译：一种使用扩频调制技术在CDMA通信网络中分配信道化（扩展）码的系统和方法，使得通过使用最优码字来分配最小数量的扩展码。使用表示扩展频谱通信系统中用于不同扩频因子的扩展码的预定权重的系统码字，结合用户定义的权重来确定最佳码字，以便与其分配最小数量的扩展码。

8. 发明授权

US06498789B1 CDMA mobile communications device 失效
标题翻译： CDMA移动通信设备
公开(公告)号：US06498789B1
公开(公告)日：2002-12-24
申请号：US09207718
申请日：1998-12-09
申请人： Shoichiro Honda
发明人： Shoichiro Honda
IPC分类号： H04J1300
CPC分类号： H04J13/10 , H04B1/707 , H04B1/7115 , H04J13/0022
摘要： In a CDMA mobile communications device, a long code generator can be eliminated from a receiving section by storing a received long code at an output timing of a decimating section 11 through calculation of a write address of a FIFO buffer 12a, calculating a read address of the FIFO buffer at the cycle of a reference clock signal output from a reference clock signal generation section 12c, controlling the received long code through use of a FIFO buffer control section 12b which reads the received long code, and by a symbol combining section 10 combining symbols received over paths and output from a RAKE receiving section at the cycle of the reference clock signal and demodulating the combined symbol through use of the received long code.
摘要翻译：在CDMA移动通信设备中，通过计算FIFO缓冲器12a的写入地址，计算读取地址，可以在接收部分通过在抽取部分11的输出定时存储接收到的长码来消除长码发生器从参考时钟信号生成部分12c输出的参考时钟信号的周期的FIFO缓冲器，通过使用读取接收的长码的FIFO缓冲器控制部分12b以及组合的符号组合部分10来控制所接收的长码通过路径接收的符号，并且在参考时钟信号的周期从RAKE接收部分输出，并且通过使用所接收的长码来解调组合符号。

9. 发明授权

US06466559B1 Method and apparatus for allocating processing resources 有权
标题翻译：分配处理资源的方法和装置
公开(公告)号：US06466559B1
公开(公告)日：2002-10-15
申请号：US09143619
申请日：1998-08-28
申请人： Staffan E. Johansson , Nils T. E. Jonsson , Peter Johansson , Christoffer Andersson , Patrik J. E. RynbÅck
发明人： Staffan E. Johansson , Nils T. E. Jonsson , Peter Johansson , Christoffer Andersson , Patrik J. E. RynbÅck
IPC分类号： H04J1300
CPC分类号： H04Q3/0062 , H04L2012/5607 , H04L2012/5632 , H04L2012/5676 , H04W72/04
摘要： First and second pools of resource units are configured using a structure having plural levels including first and second level resource units. A relationship is established between ones of the two pools of resource units. A request is made for a resource that requires a resource unit from both of the first and second resource unit pools. A single allocation procedure is employed to allocate resource units from both pools. If one of the resource units is available in one pool, the relationship ensures that a required corresponding resource unit in another pool is also available.
摘要翻译：使用具有包括第一和第二级资源单元的多个级别的结构来配置资源单元的第一和第二池。在两个资源单位池之间建立了关系。对需要来自第一和第二资源单元池的资源单元的资源进行请求。采用单个分配过程从两个池中分配资源单元。如果其中一个资源单元在一个池中可用，则该关系确保另一池中所需的相应资源单元也可用。

10. 发明授权

US06356528B1 Interleaver and deinterleaver for use in a diversity transmission communication system 有权
标题翻译：用于分集传输通信系统的交织器和解交织器
公开(公告)号：US06356528B1
公开(公告)日：2002-03-12
申请号：US09293527
申请日：1999-04-15
申请人： Stein S. Lundby , Keith Saints
发明人： Stein S. Lundby , Keith Saints
IPC分类号： H04J1300
CPC分类号： H04B7/0697 , H03M13/09 , H03M13/23 , H03M13/2957 , H04B1/707 , H04B7/0613 , H04B7/0671 , H04B7/0678 , H04B7/0894 , H04B2201/709709 , H04L1/0041 , H04L1/0071 , H04L1/06
摘要： Apparatuses for a transmitter and a receiver which enhance the performance of a system utilizing interleaving and transmit diversity by reordering the sequence of symbols transmitted along the different transmission channels. This enhancement is accomplished by providing different shuffling functions in conjunction with the interleavers and deinterleavers used with different transmission channels, which decreases the probability of loss of sequential symbols when transmission channels or antennas become correlated.
摘要翻译：用于发射机和接收机的装置，其通过重新排序沿着不同传输信道传输的符号序列来增强利用交织和发射分集的系统的性能。通过提供与不同传输信道一起使用的交织器和解交织器提供不同的混洗功能来实现该增强，这降低了当传输信道或天线变得相关时丢失序列符号的概率。

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