公开(公告)号：US06980587B2

公开(公告)日：2005-12-27

申请号：US09801697

申请日：2001-03-09

申请人： Anne-Marie Gesret ,  Majid Boloorian

发明人： Anne-Marie Gesret ,  Majid Boloorian

IPC分类号： G01S19/11 ,  H04B1/707 ,  H04B7/26 ,  H04Q7/38 ,  H04B1/69

CPC分类号： H04B1/7083

摘要： A set of values corresponding to measured parameters of the output peaks resulting from the correlation of the received data with a synchronization code stored in the receiver are saved to a peak buffer. Subsequent transmissions of the synchronization data are similarly correlated in the receiver and the results stored as assigned values in further peak buffers. The contents of the peak buffers are then regrouped according to their positional entries. A ranking is computed from the values assigned for each position and the positions with the highest ranking are selected for slot timing.

摘要翻译： 对应于由接收到的数据与存储在接收器中的同步码相关而产生的输出峰值的测量参数的一组值被保存到峰值缓冲器。 随后的同步数据的传输在接收机中和在另外的峰值缓冲器中作为分配值存储的结果类似地相关。 峰值缓冲器的内容然后根据它们的位置条目重新组合。 从为每个位置分配的值计算排名，并且为时隙定时选择具有最高排名的位置。

公开(公告)号：US06895231B2

公开(公告)日：2005-05-17

申请号：US09956692

申请日：2001-09-20

申请人： Majid Boloorian

发明人： Majid Boloorian

IPC分类号： H03J7/02 ,  H03J7/04 ,  H04B1/26 ,  H04B1/7087 ,  H04L27/227 ,  H04L27/38 ,  H04B15/00

CPC分类号： H04B1/7087 ,  H03J7/04

摘要： A method and apparatus provided for adjusting reference frequency iteratively in a receiver. Received data is correlated with a locally stored synchronization code and the peak correlation value is detected. In a first run-through this will be stored in a local peak correlation store. The frequency is then adjusted by a predetermined step and the process performed again, with the peak correlation value detected being compared with the peak in the local store. If the new peak is larger then that frequency step is saved and a further frequency step applied. If the new correlation peak is smaller than the previously stored peak then the frequency step applied to derive that new peak is removed and a smaller frequency step applied. This process continues for a succession of decreasing frequency steps until all the stored frequency steps have been used up, at which point the local oscillator frequency is adjusted and the receiver continues with the cell search process.

摘要翻译： 一种用于在接收机中迭代地调整参考频率的方法和装置。 接收到的数据与本地存储的同步码相关，并且检测到峰值相关值。 在第一次运行中，这将存储在本地峰值相关存储库中。 然后通过预定步骤调整频率，并且再次执行处理，将检测到的峰值相关值与本地存储器中的峰值进行比较。 如果新峰值较大，那么该频率步长将被保存，并应用另一个频率步长。 如果新的相关峰值小于先前存储的峰值，则应用于导出该新峰值的频率步长被移除并施加较小的频率步长。 这个过程继续进行一系列降低的频率步长，直到所有存储的频率步长都被消耗，此时调整本地振荡器频率，接收机继续进行小区搜索过程。

公开(公告)号：US20210341611A1

公开(公告)日：2021-11-04

申请号：US16866437

申请日：2020-05-04

申请人： Majid Boloorian

发明人： Majid Boloorian

IPC分类号： G01S17/34 ,  G01S17/89 ,  G01S17/58

摘要： Systems and methods described herein are directed to extending a range of operation of a remote imaging system including a Light Detection and Ranging (LIDAR) system. Example embodiments describe delaying a locally generated reference signal in time with respect to an outgoing LIDAR signal. By delaying the reference signal, the system can effectively increase a maximum range of target detection while maintaining the accuracy of target detection. In some embodiments, by delaying the reference signal, the system may be able to reduce the effects of phase noise and chirp non-linearities on the beat signal and effectively improve the signal-to-noise ratio. As such, the maximum range of operation of the system may be increased while maintaining highly accurate estimations of target depth and/or velocity.

公开(公告)号：US20210311194A1

公开(公告)日：2021-10-07

申请号：US16838381

申请日：2020-04-02

申请人： Majid Boloorian

发明人： Majid Boloorian

IPC分类号： G01S17/894 ,  G01S7/481 ,  G01S7/4912

摘要： Systems and methods described herein are directed to computationally fast and accurate processing of data acquired by a remote imaging system, such as a Light Detection and Ranging system (LIDAR). Example embodiments describe processing of scanned target data based on performing a low-resolution Fourier Transform (FT) of a beat signal that may be a function of distance and/or velocity of objects associated with the scanned target. Various methods described herein can effectively convert the low-resolution FT data into high-resolution frequency domain data that can be used to accurately estimate a frequency of the beat signal. The system may use the beat signal frequency to determine the distance and/or velocity of the corresponding object and generate point-cloud information associated with a three-dimensional image construction of the scanned target.

公开(公告)号：US09338751B2

公开(公告)日：2016-05-10

申请号：US13658004

申请日：2012-10-23

申请人： Tobias Scholand ,  Michael Speth ,  Majid Boloorian ,  Cheng Yi ,  Sanjeev Tavathia ,  Biljana Badic ,  Rajarajan Balraj

发明人： Tobias Scholand ,  Michael Speth ,  Majid Boloorian ,  Cheng Yi ,  Sanjeev Tavathia ,  Biljana Badic ,  Rajarajan Balraj

IPC分类号： H04W52/16 ,  H04W52/42

CPC分类号： H04W52/16 ,  H04W52/146 ,  H04W52/346 ,  H04W52/367 ,  H04W52/42

摘要： A device includes a first adjustment unit which is configured to adjust a power of a first carrier signal, and a second adjustment unit configured to adjust a power of a second carrier signal. The first adjustment unit is configured to adjust the first carrier signal power based on a maximum allowable imbalance between the first carrier signal power and the second carrier signal power. A method for controlling a transmit power in a user equipment of a radio communications system includes calculating in the user equipment first carrier signal power and a second carrier signal power. The method further includes adjusting in the user equipment the calculated transmit power for at least one out of the first carrier signal and the second carrier signal based on the maximum allowable power imbalance between the first carrier signal power and the second carrier signal power.

摘要翻译： 一种装置包括被配置为调整第一载波信号的功率的第一调整单元和被配置为调整第二载波信号的功率的第二调整单元。 第一调整单元被配置为基于第一载波信号功率和第二载波信号功率之间的最大允许不平衡来调整第一载波信号功率。 一种用于控制无线电通信系统的用户设备中的发射功率的方法包括：在用户设备中计算第一载波信号功率和第二载波信号功率。 该方法还包括基于第一载波信号功率和第二载波信号功率之间的最大允许功率不平衡，在用户设备中调整计算出的第一载波信号和第二载波信号中的至少一个的发射功率。

公开(公告)号：US20140113675A1

公开(公告)日：2014-04-24

申请号：US13658004

申请日：2012-10-23

申请人： Tobias Scholand ,  Michael Speth ,  Majid Boloorian ,  Cheng Yi ,  Sanjeev Tavathia ,  Biljana Badic ,  Rajarajan Balraj

发明人： Tobias Scholand ,  Michael Speth ,  Majid Boloorian ,  Cheng Yi ,  Sanjeev Tavathia ,  Biljana Badic ,  Rajarajan Balraj

IPC分类号： H04W52/16 ,  H04W52/32

CPC分类号： H04W52/16 ,  H04W52/146 ,  H04W52/346 ,  H04W52/367 ,  H04W52/42

摘要： A device includes a first adjustment unit which is configured to adjust a power of a first carrier signal, and a second adjustment unit configured to adjust a power of a second carrier signal. The first adjustment unit is configured to adjust the first carrier signal power based on a maximum allowable imbalance between the first carrier signal power and the second carrier signal power. A method for controlling a transmit power in a user equipment of a radio communications system includes calculating in the user equipment first carrier signal power and a second carrier signal power. The method further includes adjusting in the user equipment the calculated transmit power for at least one out of the first carrier signal and the second carrier signal based on the maximum allowable power imbalance between the first carrier signal power and the second carrier signal power.

摘要翻译： 一种装置包括被配置为调整第一载波信号的功率的第一调整单元和被配置为调整第二载波信号的功率的第二调整单元。 第一调整单元被配置为基于第一载波信号功率和第二载波信号功率之间的最大允许不平衡来调整第一载波信号功率。 一种用于控制无线电通信系统的用户设备中的发射功率的方法包括：在用户设备中计算第一载波信号功率和第二载波信号功率。 该方法还包括基于第一载波信号功率和第二载波信号功率之间的最大允许功率不平衡，在用户设备中调整计算出的第一载波信号和第二载波信号中的至少一个的发射功率。

公开(公告)号：US07254161B2

公开(公告)日：2007-08-07

申请号：US10204217

申请日：2001-02-19

申请人： Majid Boloorian

发明人： Majid Boloorian

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713

CPC分类号： H04L27/0014 ,  H04B1/707 ,  H04B1/7075 ,  H04L2027/0065 ,  H04L2027/0095

摘要： A method of estimating the difference in frequency between base station transmissions received over a radio channel and a locally generated carrier frequency in a mobile receiver. The differential phase shifts imparted to different parts of a received synchronization code because of a frequency offset of the local reference oscillator are detected in the receiver. A series of partial correlations of the received synchronization code over a single transmission slot allows detection of the differential phase shifts. Signal to noise ratios may be improved by means of a series of overlapping partial correlations. The period over which the correlations are performed is much less than the coherence time of the radio channel.

摘要翻译： 一种估计移动接收机中通过无线电信道接收的基站传输与本地生成的载波频率之间的频率差异的方法。 在接收机中检测到由于本地参考振荡器的频率偏移而导致的接收到的同步码的不同部分的差分相移。 在单个传输时隙上接收的同步码的一系列部分相关性允许检测差分相移。 通过一系列重叠的部分相关性可以提高信噪比。 执行相关性的周期远小于无线电信道的相干时间。

公开(公告)号：US07006558B2

公开(公告)日：2006-02-28

申请号：US09955831

申请日：2001-09-19

申请人： Majid Boloorian

发明人： Majid Boloorian

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713

CPC分类号： H04B1/7085 ,  H04B1/7075 ,  H04B1/7087 ,  H04B2201/70701 ,  H04L27/2332 ,  H04L2027/0065 ,  H04L2027/0095

摘要： The present invention relates to a method and apparatus for correcting frequency offset of a local oscillator in a direct sequence spread spectrum receiver such as Universal Mobile Telecommunications System (UMTS). Received signals comprise a plurality of sequential slots of data. At least one of these includes synchronization data. A correlation is performed between this received data and a locally stored synchronization code. Subsequently, the received data is phase adjusted and a further correlation performed between the phase adjusted data and the locally stored synchronization code. The strongest correlation peak is then determined and a phase offset to be applied to the local oscillator is estimated from the phase adjustment required to produce the strongest peak. This is subsequently applied to the local oscillator.

摘要翻译： 本发明涉及用于校正诸如通用移动通信系统（UMTS）的直接序列扩频接收机中本地振荡器的频率偏移的方法和装置。 接收信号包括数据的多个顺序时隙。 这些中的至少一个包括同步数据。 在该接收的数据与本地存储的同步码之间执行相关性。 随后，接收的数据被相位调整，并且在相位调整数据和本地存储的同步码之间执行进一步的相关性。 然后确定最强的相关峰值，并且从产生最强峰值所需的相位调整估计要施加到本地振荡器的相位偏移。 随后将其应用于本地振荡器。

公开(公告)号：US06950458B2

公开(公告)日：2005-09-27

申请号：US09956697

申请日：2001-09-19

申请人： Majid Boloorian

发明人： Majid Boloorian

IPC分类号： H04B1/707 ,  H04B7/26 ,  H04L27/00 ,  H04B1/69

CPC分类号： H04B1/7075 ,  H04L2027/0028 ,  H04L2027/0055 ,  H04L2027/0065 ,  H04L2027/0095

摘要： A method and apparatus for acquiring slot timing and frequency offset correction of a local oscillator, provided for use in a direct sequence spread spectrum receiver. The received signals in such a system comprise a plurality of sequential slots of data. Some of these comprise synchronization data. At least two different correlations are performed at a receiver between the received data and a locally stored synchronization code. These are compared to determine which give the strongest correlation peak and the timing of this peak is then stored. The offset to be applied to a local oscillator in the receiver is then estimated from this time and subsequently applied to the local oscillator.

摘要翻译： 一种用于获取在直接序列扩频接收机中使用的本地振荡器的时隙定时和频偏校正的方法和装置。 这种系统中的接收信号包括数据的多个顺序时隙。 其中一些包括同步数据。 在所接收的数据和本地存储的同步码之间的接收机处执行至少两个不同的相关。 将它们进行比较以确定哪个给出最强相关峰，然后存储该峰的时间。 然后从该时间估计要在接收机中施加到本地振荡器的偏移量，随后将其应用于本地振荡器。