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31.发明授权Method and an apparatus for a quick retransmission of signals in a communication system 有权用于在通信系统中快速重传信号的方法和装置公开(公告)号：US07613978B2
公开(公告)日：2009-11-03
申请号：US11518329
申请日：2006-09-07
申请人： Ahmad Jalali , Eduardo A.S. Esteves , Nagabhushana T. Sindhushayana , Peter J. Black , Rashid A. Attar
发明人： Ahmad Jalali , Eduardo A.S. Esteves , Nagabhushana T. Sindhushayana , Peter J. Black , Rashid A. Attar
CPC分类号： H04L1/1887 , H04L1/1692 , H04L1/1809 , H04L1/1848 , H04L1/1877 , H04L1/188
摘要： A method and an apparatus for quick retransmission of signals in a communication system are disclosed. A transmitting terminal, e.g., a base station, transmits signals in a form of packets to a receiving terminal, e.g., a subscriber station. The receiving terminal determines if the packet was intended for the receiving terminal, and if so, the receiving terminal demodulates the packet. The receiving terminal then computes a quality metric of the packet, and compares the computed quality metric with a quality metric contained in the packet. If the quality metrics match, the packet is declared correctly received, and is forwarded for further processing. If the quality metrics fail to match, the receiving terminal sends a request for retransmission of the packet. The transmitting terminal determines which packet needs to be retransmitted based on the request for retransmission. The transmitting terminal then schedules the packet for retransmission.
摘要翻译： 公开了一种在通信系统中快速重发信号的方法和装置。 发送终端（例如基站）以分组的形式向接收终端（例如，用户台）发送信号。 接收终端确定分组是否用于接收终端，如果是，则接收终端解调分组。 接收终端然后计算分组的质量度量，并将计算的质量度量与分组中包含的质量度量进行比较。 如果质量度量匹配，则报文被正确地接收，并被转发用于进一步的处理。 如果质量度量不匹配，则接收终端发送分组请求。 发送终端根据重传请求确定哪个分组需要重传。 然后，发送终端调度分组进行重传。
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32.发明授权Method and apparatus for reducing power consumption of a decoder in a communication system 有权用于降低通信系统中解码器功耗的方法和装置公开(公告)号：US07051268B1
公开(公告)日：2006-05-23
申请号：US09675704
申请日：2000-09-29
CPC分类号： H04L1/0045 , H04L1/0051 , H04W52/0245 , Y02D70/21
摘要： A method and an apparatus for reducing power consumption of a decoder in a communication system are disclosed. In a communication system communicating a packet, the packet can be arranged among slots of a communication channel so that each slot following the first slot contains redundant bits of the packet with respect to the first slot. A receiving station estimates quality metric of a received slot, determines a quality metric threshold, and delimits an interval in accordance with the modified quality metric threshold. If the estimated quality metric is outside of the interval, the segment is decoded. The decoding process comprises delimiting a plurality of intervals in accordance with the quality metric threshold, associating each of the plurality of intervals with one of a plurality of parameters, determining an interval from the plurality of intervals into which the estimated quality metric belongs; and decoding the received signal for a number of iterations equal to the one of a plurality of parameters associated with the determined interval. In the course of the decoding process, a stopping criterion is evaluated, and the decoding process is terminated in accordance with the stopping criterion.
摘要翻译： 公开了一种用于降低通信系统中解码器功耗的方法和装置。 在传送分组的通信系统中，分组可以布置在通信信道的时隙中，使得跟随第一时隙的每个时隙包含相对于第一时隙的分组的冗余比特。 接收站估计接收时隙的质量度量，确定质量度量阈值，并根据修改的质量度量阈值界定间隔。 如果估计的质量度量在该间隔之外，则该段被解码。 解码过程包括根据质量度量阈值划分多个间隔，将多个间隔中的每一个与多个参数中的一个相关联，从估计质量度量所属的多个间隔中确定间隔; 以及将所接收的信号解码为等于与所确定的间隔相关联的多个参数之一的迭代次数。 在解码处理的过程中，评估停止标准，并根据停止标准终止解码处理。
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33.发明授权公开(公告)号：US06798736B1
公开(公告)日：2004-09-28
申请号：US09158254
申请日：1998-09-22
IPC分类号： H04J1100
CPC分类号： H04L1/0038 , H04B1/707 , H04B2201/70701 , H04B2201/70703 , H04J13/00 , H04J13/0048 , H04J13/10 , H04L1/0003 , H04L1/0025 , H04L1/08
摘要： A variable rate transmission system transmits a variable rate data packet including an accompanying rate indication signal indicative of the transmission rate of the variable data packet. The data packet can be spread using a long pseudonoise (PN) code, the mask of which can be selected in accordance with the transmission rate of the variable rate data packet. A preamble, providing the transmission rate, can be punctured into an outgoing pilot signal. The rate indication signal can be encoded in accordance with a set of orthogonal functions that are part of the indication of the transmission rate of the data packet.
摘要翻译： 可变速率传输系统发送包括指示可变数据分组的传输速率的伴随速率指示信号的可变速率数据分组。 可以使用长的伪噪声（PN）码扩展数据分组，其可以根据可变速率数据分组的传输速率来选择其掩码。 提供传输速率的前导码可以被打孔到输出导频信号中。 速率指示信号可以根据作为数据分组的传输速率的指示的一部分的一组正交函数进行编码。
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34.发明授权公开(公告)号：US07961592B2
公开(公告)日：2011-06-14
申请号：US11940757
申请日：2007-11-15
IPC分类号： H04J11/00
CPC分类号： H04L1/0038 , H04B1/707 , H04B2201/70701 , H04B2201/70703 , H04J13/00 , H04J13/0048 , H04J13/10 , H04L1/0003 , H04L1/0025 , H04L1/08
摘要： A variable rate transmission system transmits a variable rate data packet including an accompanying rate indication signal indicative of the transmission rate of the variable data packet. The data packet can be spread using a long pseudonoise (PN) code, the mask of which can be selected in accordance with the transmission rate of the variable rate data packet. A preamble, providing the transmission rate, can be punctured into an outgoing pilot signal. The rate indication signal can be encoded in accordance with a set of orthogonal functions that are part of the indication of the transmission rate of the data packet.
摘要翻译： 可变速率传输系统发送包括指示可变数据分组的传输速率的伴随速率指示信号的可变速率数据分组。 可以使用长的伪噪声（PN）码扩展数据分组，其可以根据可变速率数据分组的传输速率来选择其掩码。 提供传输速率的前导码可以被打孔到输出导频信号中。 速率指示信号可以根据作为数据分组的传输速率的指示的一部分的一组正交函数进行编码。
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35.发明授权公开(公告)号：US07315531B2
公开(公告)日：2008-01-01
申请号：US10858873
申请日：2004-06-01
IPC分类号： H04B7/216
CPC分类号： H04L1/0038 , H04B1/707 , H04B2201/70701 , H04B2201/70703 , H04J13/00 , H04J13/0048 , H04J13/10 , H04L1/0003 , H04L1/0025 , H04L1/08
摘要： A variable rate transmission system transmits a variable rate data packet including an accompanying rate indication signal indicative of the transmission rate of the variable data packet. The data packet can be spread using a long pseudonoise (PN) code, the mask of which can be selected in accordance with the transmission rate of the variable rate data packet. A preamble, providing the transmission rate, can be punctured into an outgoing pilot signal. The rate indication signal can be encoded in accordance with a set of orthogonal functions that are part of the indication of the transmission rate of the data packet.
摘要翻译： 可变速率传输系统发送包括指示可变数据分组的传输速率的伴随速率指示信号的可变速率数据分组。 可以使用长的伪噪声（PN）码扩展数据分组，其可以根据可变速率数据分组的传输速率来选择其掩码。 提供传输速率的前导码可以被打孔到输出导频信号中。 速率指示信号可以根据作为数据分组的传输速率的指示的一部分的一组正交函数进行编码。
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公开(公告)号：US07251229B2
公开(公告)日：2007-07-31
申请号：US09924307
申请日：2001-08-06
CPC分类号： H04B1/707 , H04B1/7097 , H04B2001/6908 , H04B2201/70701
摘要： Systems and techniques for a signal having a first set of channels separated in a first format, and a second set of channels separated in a second format wherein a first parameter for a first one of the channels from the first set is measured, a second parameter from a second one of the first channels is measured, and the relative power between the first one of the channels and the second one of the channels from the first set of channels can be computed. The foregoing abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
摘要翻译： 用于具有以第一格式分离的第一组通道的信号的系统和技术以及以第二格式分离的第二组通道，其中测量来自第一组的第一通道中的第一参数，第二参数 测量来自第一通道中的第二通道的第二通道中的第二通道中的第一通道之间的相对功率，并且可以计算来自第一组通道的通道中的第一通道与第二通道之间的相对功率。 提供上述摘要以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开内容的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。
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公开(公告)号：US07010073B2
公开(公告)日：2006-03-07
申请号：US10044235
申请日：2002-01-11
IPC分类号： H04L7/00
摘要： Techniques for deriving sample timing for multiple signal instances received on multiple antennas for a given propagation path. In one scheme, a DLL is maintained for each path, and each DLL tracks the timing of the best signal instance for the assigned path. In another scheme, a DLL is maintained for each path, and each DLL tracks the average timing of the multiple signal instances for the assigned path. To reduce timing jitter, the SINR of a signal instance may be estimated for a number of different time offsets. The loop filter for the DLL is initially updated in the normal manner. If a change in the time offset used for the sample timing is detected, then the SINRs for the new and prior offsets are compared. The new time offset is used if the associated SINR is better. Otherwise, the prior time offset is retained and used.
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公开(公告)号：US06738608B2
公开(公告)日：2004-05-18
申请号：US10075578
申请日：2002-02-12
IPC分类号： H04B106
CPC分类号： H04L7/0054 , H04B2001/70706 , H04L7/0025 , H04L27/0014 , H04L2027/0028 , H04L2027/0036 , H04L2027/0055 , H04L2027/0065
摘要： A frequency-timing control loop comprising (1) a frequency control loop to acquire and track the frequency of a given signal instance in a received signal and (2) a timing control loop to acquire and track the timing of the same signal instance. The timing control loop processes data samples for the received signal to provide a first control indicative of timing error in the data samples for the signal instance. The frequency control loop includes (1) a frequency discriminator used to derive a second control indicative of frequency error in the data samples for the signal instance, and (2) a loop filter used to filter the first and second controls to provide a third control. This third control is used to adjust the frequency and phase of a periodic signal, which is used (directly or indirectly) to downconvert and digitize the received signal to provide the data samples.
摘要翻译： 一种频率定时控制环路，包括：（1）频率控制环路，用于获取并跟踪接收信号中的给定信号实例的频率，以及（2）定时控制环路，用于获取和跟踪同一信号实例的定时。 定时控制环路处理接收信号的数据样本，以提供指示信号实例的数据采样中的定时误差的第一控制。 频率控制回路包括（1）用于导出指示信号实例的数据样本中的频率误差的第二控制的频率鉴别器，以及（2）用于对第一和第二控制进行滤波以提供第三控制的环路滤波器 。 该第三控制用于调整周期性信号的频率和相位（直接或间接使用）来对接收信号进行下变频和数字化，以提供数据样本。
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39.发明授权公开(公告)号：US06687510B2
公开(公告)日：2004-02-03
申请号：US09832671
申请日：2001-04-11
IPC分类号： H04B700
CPC分类号： H04W52/265 , H04W52/225 , H04W52/226 , H04W52/228 , H04W52/267 , H04W52/32 , H04W52/343 , H04W52/346 , H04W52/50
摘要： A method and apparatus that determines how much power to allocate to each of a plurality of reverse link power control (RLPC) Channels to be transmitted from a base station, based upon data rate control (DRC) messages transmitted to the base station. Historical information is used to determine the quality of the Forward Link over which the RLPC is to be transmitted. If the history of the DRCs received indicates that the remote station to which the RLPC Channel is to be directed has not transmitted a DRC recently, then the base station allocates power to the RLPC Channels based upon information provided to the base station in DRCs that were received by the base station, but that were directed to other base stations. Accordingly, the base station can allocate power among the RLPC Channels without having received explicit information as to the quality of the Forward Link between the base station and every remote station intended to receive the information on the RLPC Channels.
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40.发明授权Method and apparatus for transmitting reverse link power control signals based on the probability that the power control command is in error 有权基于功率控制命令错误的概率发送反向链路功率控制信号的方法和装置公开(公告)号：US06208873B1
公开(公告)日：2001-03-27
申请号：US09198320
申请日：1998-11-23
IPC分类号： H04Q720
摘要： A method and apparatus for controlling the transmit power of a plurality of mobile radio units transmitting to a base station in a mobile radio telephone system. For each of the mobile units in the system, a signal strength estimate is measured at the base station based on reverse link signals sent from the mobile units and received at the base station, wherein each signal strength estimate is associated with one of the mobile units. The signal strength estimate associated with each mobile unit is compared to a threshold. Next, for each mobile unit in the plurality of mobile units, if the signal strength estimate associated with the mobile unit is greater than the threshold, then a power control bit having a first value is assigned to the mobile unit; conversely, if the signal strength estimate associated with the mobile unit is less than the threshold, then a power control bit having a second value is assigned to the mobile unit. A variable gain that is a function of the difference between the signal strength estimate associated with the mobile unit and the threshold is next applied to each power control bit. The variable gain applied to each power control bit increases as the magnitude of the difference between the signal strength estimate associated with the mobile unit and the threshold increases. Each gain-adjusted power control bit is then transmitted to the mobile units.
摘要翻译： 一种用于控制向移动无线电话系统中的基站发送的多个移动无线电单元的发射功率的方法和装置。 对于系统中的每个移动单元，基于从移动单元发送并在基站处接收的反向链路信号在基站处测量信号强度估计，其中每个信号强度估计与移动单元之一相关联 。 将与每个移动单元相关联的信号强度估计与阈值进行比较。 接下来，对于多个移动单元中的每个移动单元，如果与移动单元相关联的信号强度估计大于阈值，则将具有第一值的功率控制比特分配给移动单元; 相反，如果与移动单元相关联的信号强度估计小于阈值，则将具有第二值的功率控制位分配给移动单元。 作为与移动单元相关联的信号强度估计之间的差异与阈值的函数的可变增益接下来应用于每个功率控制位。 施加到每个功率控制位的可变增益随着与移动单元相关联的信号强度估计与阈值之间的差值的大小增加而增加。 然后将每个增益调整功率控制位传送到移动单元。
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