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51. 发明申请

WO2002075955A1 METHOD AND APPARATUS FOR ADJUSTING POWER CONTROL SETPOINT IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在无线通信系统中调整功率控制设置点的方法和装置
公开(公告)号：WO2002075955A1
公开(公告)日：2002-09-26
申请号：PCT/US2002/007697
申请日：2002-03-15
申请人： QUALCOMM INCORPORATED
发明人： CHEN, Tao , HOLTZMAN, Jack, M. , LING, Funyun , SAINTS, Keith , SINDHUSHAYANA, Nagabhushana , WHEATLEY, Charles, E., III
IPC分类号： H04B7/005
CPC分类号： H04W52/12 , H04L1/0051 , H04L1/0066 , H04L1/208 , H04W52/20 , H04W52/36
摘要： Techniques to adjust the setpoint of a power control loop in a wireless communicaton system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint and a threshold E b /N t needed for the desired level of performance, or a combination thereof. The metrics may include re-encoded symbol error rate, re-encoded power metric, modified Yamamoto metric, minimum or average LLR among decoded bits, number of decoding iterations, and possibly others, The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.
摘要翻译：调整无线通信系统中功率控制回路设定值的技术。可以基于指示擦除/良好解码帧的帧状态来调整设定点，指示解码结果的置信度的一个或多个（通常是软的）度量，指示接收到的信号质量和设定点之间的差异的功率余量/ 以及所需性能水平所需的阈值Eb / Nt，或其组合。度量可以包括重新编码的符号错误率，重新编码的功率度量，修改的Yamamoto度量，解码比特中的最小或平均LLR，解码迭代次数，以及可能的其他值。可以以不同的方式和/或由不同的数量取决于上述因素。这些技术可以用于CDMA系统中的前向和/或反向链路。

52. 发明申请

WO0165761A9 METHOD TO DETECT AND CONCEAL CORRUPTED SIGNAL PARAMETERS IN CODED SPEECH COMMUNICATION 审中-公开
标题翻译：在编码语音通信中检测和抑制信号损坏的信号参数的方法
公开(公告)号：WO0165761A9
公开(公告)日：2001-11-22
申请号：PCT/EP0101462
申请日：2001-02-12
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： JONCOUR YANN A R
IPC分类号： G10L19/00 , H04L1/00 , H04L1/20
CPC分类号： H04L1/0061 , H04L1/20 , H04L1/208
摘要： The error concealment method improves the signal quality in transmission systems. The method is used for processing speech signals which have been encoded to speech parameters before transmission via a transmission channel. It allows detection at the receiving end of corrupted signal parameters due to adverse channel conditions. The method comprises estimations of the signal quality and a statistic study of the evolution of the signal parameters so as to derive an indication that the parameter is probably corrupted. A first signal quality estimation is performed. It may be e.g. an estimation of the error probability within the most important bits of the frame. A second signal quality estimation is performed. It may be e.g. an estimation of the error probability within all bits of the frame. Depending on the results of the estimations, the statistic study is performed in order to detect which signal parameters are probably corrupted.
摘要翻译：错误隐藏方法提高了传输系统的信号质量。该方法用于处理经由传输信道传输之前已被编码为语音参数的语音信号。它允许在接收端检测由于不利的信道条件而导致的信号参数的损坏。该方法包括对信号质量的估计和信号参数演化的统计学研究，以便导出参数可能被破坏的指示。执行第一信号质量估计。它可以是例如在帧的最重要位内的误差概率的估计。执行第二信号质量估计。它可以是例如在帧的所有位内的误差概率的估计。根据估计结果，进行统计学研究以检测哪些信号参数可能已被破坏。

53. 发明申请

WO9943101A9 FORWARD LINK POWER CONTROL IN A CELLULAR SYSTEM USING NT/I0 VALUES 审中-公开
标题翻译：使用NT / I0值的蜂窝系统中的前向链路功率控制
公开(公告)号：WO9943101A9
公开(公告)日：1999-11-04
申请号：PCT/US9903683
申请日：1999-02-19
申请人： QUALCOMM INC , BENDER PAUL E , PADOVANI ROBERTO
发明人： BENDER PAUL E , PADOVANI ROBERTO
IPC分类号： H04B1/04 , H04B7/005 , H04B7/26 , H04L1/00 , H04W36/08 , H04W36/18 , H04W36/30 , H04W52/00 , H04W52/24 , H04W52/40 , H04W52/44 , H04W52/58 , H04W52/60 , H04W56/00 , H04W68/00 , H04B17/00
CPC分类号： H04L1/0071 , H04L1/0002 , H04L1/0025 , H04L1/0059 , H04L1/0068 , H04L1/208 , H04W36/18 , H04W36/30 , H04W52/24 , H04W52/241 , H04W52/40 , H04W52/44 , H04W52/58 , H04W52/60 , H04W56/00 , H04W68/00
摘要： A system and method is taught for controlling the power level of transmissions within a communication system having a base station, a mobile station, a communication channel, and a pilot channel. The mobile station determines a signal strength value according to a communication signal received by way of the communication channel. A pilot channel signal is determined according to a pilot signal transmitted by way of the pilot channel. The signal to noise ratio of the communication signal is determined according to the determined signal strength value and the pilot channel signal. The power level of a transmission is controlled according to the signal to noise ratio. The noise level in a communication channel within the communication system is estimated. The pilot channel signal includes pilot energy and pilot noise components. The pilot energy component is removed to provide a remaining pilot signal. Communication system operations are controlled according to the remaining pilot signal. The power levels of transmissions are controlled by determining the signal to noise ratio of a signal within the communication channel and determining a difference signal. The difference signal is formed by determining the difference between determined and desired signal to noise ratios. The difference signal is transmitted between the base station and the mobile station. The pilot channel has at least one frame and the power control signal is inserted into the frame. Thus, information representing the strength of the communication signal is transmitted to the base by way of the pilot channel within the frame. The pilot channel can have two information frames for transmitting the power control signal a plurality of times.
摘要翻译：教导了一种用于控制具有基站，移动台，通信信道和导频信道的通信系统内的传输功率电平的系统和方法。移动台根据通过通信信道接收到的通信信号来确定信号强度值。根据通过导频信道发送的导频信号来确定导频信道信号。通信信号的信噪比根据确定的信号强度值和导频信道信号来确定。传输的功率电平根据信噪比进行控制。估计通信系统内的通信信道中的噪声电平。导频信道信号包括导频能量和导频噪声分量。导频能量分量被去除以提供剩余的导频信号。通信系统操作根据剩余的导频信号进行控制。通过确定通信信道内的信号的信噪比并确定差分信号来控制传输的功率电平。通过确定确定的和期望的信噪比之间的差异来形成差分信号。差分信号在基站和移动台之间传输。导频信道具有至少一个帧，并且功率控制信号被插入到帧中。因此，表示通信信号的强度的信息通过帧内的导频信道发送到基站。导频信道可以具有用于多次发送功率控制信号的两个信息帧。

54. 发明申请

WO99048237A1 A METHOD FOR ESTIMATING CHANNEL BIT ERROR RATIO, AND RECEIVER 审中-公开
标题翻译：用于估计信道位错误比率和接收器的方法
公开(公告)号：WO99048237A1
公开(公告)日：1999-09-23
申请号：PCT/FI1999/000194
申请日：1999-03-16
IPC分类号： H04L1/20
CPC分类号： H04L1/208 , H04L1/20
摘要： The invention relates to a method for estimating a channel bit error ratio in a receiver, and to a receiver. In the method, a pseudo bit error ratio of a channel is determined. The receiver (114) comprises detecting means (202, 204, 206, 208) for detecting a data sequence of a received signal; decoding means (302) for decoding a first encoding of the detected data signal; and re-encoding means (310) for re-encoding with the first encoding the data sequence decoded from the first encoding. The receiver (114) of the invention further comprises quality determining means (304) for providing the detected data sequence with a value for quality, and estimating means (308) for estimating the bit error ratio-provided that the quality of the detected data sequence fulfils a predetermined quality requirement by comparing the detected data sequence with the data sequence re-encoded with first encoding. The first encoding is typically a convolution coding. One way in which quality can be determined is to decode the second encoding which is, for example, a cyclic redundancy check.
摘要翻译：本发明涉及一种用于估计接收机中的信道比特误码率和接收机的方法。在该方法中，确定信道的伪比特误码率。接收器（114）包括用于检测接收信号的数据序列的检测装置（202,204,206,208）; 解码装置（302），用于解码检测到的数据信号的第一编码; 和重新编码装置（310），用于利用第一编码对从第一编码解码的数据序列进行重新编码。本发明的接收机（114）还包括用于向检测数据序列提供质量值的质量确定装置（304）和用于估计误码率的估计装置（308），只要检测数据序列的质量通过将检测到的数据序列与用第一编码重新编码的数据序列进行比较来满足预定的质量要求。第一编码通常是卷积编码。可以确定质量的一种方式是解码例如循环冗余校验的第二编码。

55. 发明申请

WO99043100A1 SYNCHRONIZATION OF FORWARD LINK BASE STATION POWER LEVELS DURING HANDOFF BETWEEN BASE STATION SECTORS IN A MOBILE RADIO COMMUNICATION SYSTEM 审中-公开
标题翻译：在移动无线电通信系统中的基站之间的移动期间的前向链路基站的电力水平的同步
公开(公告)号：WO99043100A1
公开(公告)日：1999-08-26
申请号：PCT/US1999/003530
申请日：1999-02-19
IPC分类号： H04B1/04 , H04B7/005 , H04B7/26 , H04L1/00 , H04W36/08 , H04W36/18 , H04W36/30 , H04W52/00 , H04W52/24 , H04W52/40 , H04W52/44 , H04W52/58 , H04W52/60 , H04W56/00 , H04W68/00 , H04Q7/38
CPC分类号： H04L1/0071 , H04L1/0002 , H04L1/0025 , H04L1/0059 , H04L1/0068 , H04L1/208 , H04W36/18 , H04W36/30 , H04W52/24 , H04W52/241 , H04W52/40 , H04W52/44 , H04W52/58 , H04W52/60 , H04W56/00 , H04W68/00
摘要： A method and apparatus for controlling the transmit power levels of first and second base station transceivers, wherein the first and second base station transceivers are respectively associated with first and second sectors of a cell. The received signal strength of a communication signal arriving at the mobile station is initially determined. A power control value that is based on the received signal strength is then transmitted from the mobile station to the first and second base station transceivers. A first received power control value is next generated by attempting to receive the transmitted power control value at the first base station transceiver, and a second received power control value is generated by attempting to receive the transmitted power control value at the second base station transceiver. A common transmit power value is calculated at a base station controller for the first and second base station tranceivers when the first and second received power control values are unequal. The communication signal is then transmitted from the first and second base station transceivers in accordance with the common transmit power value.
摘要翻译：一种用于控制第一和第二基站收发机的发射功率电平的方法和装置，其中第一和第二基站收发机分别与小区的第一和第二扇区相关联。初始确定到达移动台的通信信号的接收信号强度。然后，基于接收信号强度的功率控制值从移动台发送到第一和第二基站收发器。接下来通过尝试在第一基站收发信机处接收发送的功率控制值来产生第一接收功率控制值，并且通过尝试在第二基站收发信机处接收发射功率控制值来产生第二接收功率控制值。当第一和第二接收功率控制值不相等时，在第一和第二基站收发器的基站控制器处计算公共发射功率值。然后根据公共发射功率值从第一和第二基站收发机发送通信信号。

56. 发明申请

WO99008425A1 METHOD AND APPARATUS FOR DETERMINING THE RATE OF RECEIVED DATA IN A VARIABLE RATE COMMUNICATION SYSTEM 审中-公开
标题翻译：用于确定可变速率通信系统中接收数据速率的方法和装置
公开(公告)号：WO99008425A1
公开(公告)日：1999-02-18
申请号：PCT/US1998/016572
申请日：1998-08-07
IPC分类号： H03M13/01 , H03M13/09 , H03M13/35 , H03M13/41 , H04L1/00 , H04L1/08 , H04L25/02 , H04L25/03 , H04L29/08 , H03M13/00
CPC分类号： H04L25/0262 , H03M13/09 , H03M13/35 , H04L1/0046 , H04L1/0054 , H04L1/0057 , H04L1/0061 , H04L1/0065 , H04L1/0068 , H04L1/0071 , H04L1/08 , H04L1/208
摘要： In an apparatus (200) for determining the rate of received data in a variable rate communication system, a decoder (230) decodes each frame of encoded data in a received signal at each possible data rate. The decoded data is processed by a cyclic redundancy check (CRC) element (240) to produce CRC bits. The data is reencoded and correlated by a correlator (234) with the received encoded data to produce a set of normalized correlation metrics. The decoded data may also be input to a Yamamoto detector (248) to Yamamoto quality metrics. Each operation is performed for each possible data rate. The normalized correlation metric for each rate is calculated from a correlation value and a constant computer for the rate. The correlation value is determined from a correlation of the demodulated soft frame symbols and the re-encoded frame. The highest normalized correlation metric is selected and the CRC bit for this data rate is checked. If the CRC checks, this data rate is indicated as the received data rate. Otherwise, the next highest normalized correlation metric is selected and the process continues. If no CRC checks, an erasure is indicated.
摘要翻译：在用于确定可变速率通信系统中的接收数据速率的装置（200）中，解码器（230）以每种可能的数据速率对接收到的信号中的每个编码数据帧进行解码。解码数据由循环冗余校验（CRC）元素（240）处理以产生CRC比特。将数据重新编码并由相关器（234）与接收的编码数据相关，以产生一组归一化相关度量。解码的数据也可以输入到Yamamoto检测器（248）到Yamamoto质量度量。对每个可能的数据速率执行每个操作。每个速率的归一化相关度量由相关值和恒定计算机计算。相关值根据解调的软帧符号和再编码帧的相关性来确定。选择最高的归一化相关度量，并检查该数据速率的CRC位。如果CRC检查，则该数据速率被指示为接收的数据速率。否则，选择下一个最高的归一化相关度量，并且该过程继续。如果没有CRC检查，则指示擦除。

57. 发明申请

WO1997037471A1 METHOD AND APPARATUS FOR DETERMINING CODING RATE IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于确定无线通信系统中编码速率的方法和装置
公开(公告)号：WO1997037471A1
公开(公告)日：1997-10-09
申请号：PCT/US1997000435
申请日：1997-01-15
申请人： MOTOROLA INC.
发明人： MOTOROLA INC. , WANG, Michael, Mao , LING, Fuyun , STEWART, Kenneth, A.
IPC分类号： H04L27/06
CPC分类号： H04L1/208 , H04B2201/70705 , H04L1/0046 , H04L1/0054 , H04L1/20 , H04L25/0262
摘要： A receiver (500) utilizes parameters generated by a Viterbi decoder (530) to determine one of a plurality of coding rates in which user information is transmitted. The receiver (500) combines the parameters in a predetermined manner, the result of which is a detection statistic (dij). By utilizing the detection statistic (dij), the coding rate at which user information is transmitted is accurately determined.
摘要翻译：接收机（500）利用由维特比解码器（530）产生的参数来确定发送用户信息的多个编码速率中的一个。接收机（500）以预定的方式组合参数，其结果是检测统计量（dij）。通过利用检测统计量（dij），准确地确定发送用户信息的编码率。

58. 发明申请

WO1997011535A1 CELLULAR COMMUNICATION SYSTEM WITH MULTIPLE CODE RATES 审中-公开
标题翻译：具有多种代码率的蜂窝通信系统
公开(公告)号：WO1997011535A1
公开(公告)日：1997-03-27
申请号：PCT/US1996015187
申请日：1996-09-20
申请人： PACIFIC COMMUNICATION SCIENCES, INC.
发明人： PACIFIC COMMUNICATION SCIENCES, INC. , GARDNER, Steven, H. , PETRANOVICH, James, E. , HARDIN, C., Thomas
IPC分类号： H04B07/005
CPC分类号： H04W52/267 , H04B7/2659 , H04L1/0009 , H04L1/0015 , H04L1/0017 , H04L1/0025 , H04L1/0032 , H04L1/0046 , H04L1/0068 , H04L1/0071 , H04L1/208 , H04L69/18
摘要： A method and apparatus for selecting an error correction code rate in a cellular radio system. Each base station broadcasts a power product value, PP, which is its transmit power, PBT, multiplied by its desired receive power, PBR. A mobile unit determines its appropriate transmit power, PMT, by measuring its received power, PMR, and calculating PP/PMR (24). If, due to a large channel loss, the calculation result exceeds the maximum transmit power capability of the mobile unit (25), the mobile unit uses a lower code rate and adjusts the transmit power accordingly (27, 31). Three code rates, 2/3, 1/2, and 1/3, are used in the preferred embodiment in dependence on the amount of channel loss. The code rate selection can also depend on the quantity of data to be transmitted (30, 33, 34). A base station can detect the code rate by attempting to decode all code rates and choosing the best result.
摘要翻译：一种在蜂窝无线电系统中选择纠错码率的方法和设备。每个基站广播功率产品值PP，其是其发射功率PBT乘以其所需接收功率PBR。移动单元通过测量其接收功率PMR和计算PP / PMR（24）来确定其适当的发射功率PMT。如果由于信道损耗大，计算结果超过移动单元（25）的最大发射功率能力，则移动单元使用较低的码率并相应地调整发射功率（27,31）。根据信道损耗的数量，在优选实施例中使用三个码率，2/3，1/2和1/3。码率选择也可以取决于要发送的数据量（30,33,34）。基站可以通过尝试解码所有码率并选择最佳结果来检测码率。

59. 发明申请

WO1997003509A1 APPARATUS FOR DEMODULATING AND DECODING VIDEO SIGNALS 审中-公开
标题翻译：用于解密和解码视频信号的装置
公开(公告)号：WO1997003509A1
公开(公告)日：1997-01-30
申请号：PCT/US1996011109
申请日：1996-06-28
申请人： THOMSON CONSUMER ELECTRONICS, INC.
发明人： THOMSON CONSUMER ELECTRONICS, INC. , STEWART, John, Sidney
IPC分类号： H04L27/06
CPC分类号： H04L1/0057 , H04L1/0046 , H04L1/0054 , H04L1/0065 , H04L1/0068 , H04L1/0071 , H04L1/20 , H04L1/208 , H04L7/0334 , H04L27/0008 , H04L27/2332 , H04L27/3809 , H04L27/3854 , H04N7/10 , H04N21/2383 , H04N21/4382
摘要： An adaptive receiver includes an adaptive demodulator (10) and an adaptive decoder (12) for providing demodulated and decoded output data from a video signal encoded for satellite, terrestrial or cable transmission. The demodulator recovers demodulated output data by using an adaptive timing recovery network (25) and an adaptive carrier recovery network (25) that incorporates a selectable slicer network (30, 35, 40). In addition, an Automatic Gain Control network (25) within the demodulator provides a gain control output as a function of a difference between signals produced both prior to and following the slicer. The demodulator may also incorporate a signal quality detector that uses carrier recovery network signals to provide an estimate of the error in the demodulated output data. The decoder produces a Viterbi decoded output from the demodulated output data by using a selectable code rate Viterbi decoder.
摘要翻译：自适应接收机包括自适应解调器（10）和自适应解码器（12），用于从为卫星，地面或电缆传输编码的视频信号提供解调和解码的输出数据。解调器通过使用自适应定时恢复网络（25）和包含可选限幅器网络（30,35,40）的自适应载波恢复网络（25）来恢复解调的输出数据。此外，解调器内的自动增益控制网络（25）提供作为在切片器之前和之后产生的信号之间的差异的函数的增益控制输出。解调器还可以包括信号质量检测器，其使用载波恢复网络信号来提供解调输出数据中的误差的估计。解码器通过使用可选码率维特比解码器从解调的输出数据产生维特比解码输出。

60. 发明申请

WO1994017472A1 ERROR DETECTOR CIRCUIT FOR RECEIVER OPERATIVE TO RECEIVE DISCRETELY-ENCODED SIGNALS 审中-公开
标题翻译：用于接收器操作的错误检测器电路接收到已编码的信号
公开(公告)号：WO1994017472A1
公开(公告)日：1994-08-04
申请号：PCT/US1993012568
申请日：1993-12-23
申请人： MOTOROLA INC.
发明人： MOTOROLA INC. , THOME, Joseph, Francis , ARORA, Arvind, Singh , VINGGAARD, Niels
IPC分类号： G06F11/10
CPC分类号： H04L1/201 , H03M13/00 , H04L1/0045 , H04L1/0054 , H04L1/007 , H04L1/208
摘要： An error detector circuit (300), and an associated method, is disclosed for a discrete receiver, the error detector circuit (300) indicates bad frames of binary information signals which contain distorted bits of data in numbers so great as to prevent a convolutional decoder (312) from generating, accurately, a decoded signal. When bit errors are detected in numbers beyond a first preselected value of signal quality of a received signal combined with the detected number of bits errors forming a signal beyond a second preselected value, a bad frame is detected.
摘要翻译：公开了一种用于离散接收机的误差检测器电路（300）和相关联的方法，误差检测器电路（300）指示二进制信息信号的不良帧，其包含数字的失真比特数，以致于防止卷积解码器（312）精确地产生解码信号。当检测到数字超过接收信号的信号质量的第一预选值的比特错误与检测到的比特错误组合，形成超过第二预选值的信号时，检测到坏帧。

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