公开(公告)号：US07646750B2

公开(公告)日：2010-01-12

申请号：US10558829

申请日：2004-05-28

申请人： Bin Xu ,  Fangfu Guo ,  Xinxi Diao ,  Huanqiu Ye

发明人： Bin Xu ,  Fangfu Guo ,  Xinxi Diao ,  Huanqiu Ye

IPC分类号： H04B7/216

CPC分类号： H04B1/7113 ,  H04B1/7117

摘要： The present invention relates to a method and apparatus of precise first-path detection in CDMA mobile communications systems, comprising the steps of: a. calculating the noise threshold for the first-path detection according to the multi-path profile; b. judging whether there is a maximum point exceeding the noise threshold in the multi-path profile, if yes, carrying out side-lobe suppression at this maximum point and obtaining the candidate first path; otherwise, setting the flag of no first path existing, and exiting the entire process of first-path detection; c. judging according to the location of the candidate first path whether the first path is ambiguous, if yes, carrying out correction of first-path ambiguity, obtaining the corrected location of final first path, and exiting the entire first-path detection process; otherwise, outputting the location of candidate first path as the location of final first path. The apparatus in accordance with this invention comprises at least a module for noise threshold calculation, a module for side-lobe suppression, and a module for first-path ambiguity detection and correction.

摘要翻译： 本发明涉及CDMA移动通信系统中的精确第一路径检测的方法和装置，包括以下步骤：a。 根据多路径轮廓计算第一路径检测的噪声阈值; b。 判断在多路径分布中是否存在超过噪声阈值的最大点，如果是，则在该最大点执行旁瓣抑制并获得候选的第一路径; 否则，设置不存在第一条路径的标志，并退出整个第一路径检测过程; C。 根据候选第一路径的位置判断第一路径是否不明确，如果是，执行第一路径模糊度的校正，获得最终第一路径的校正位置，并退出整个第一路径检测过程; 否则，输出候选第一路径的位置作为最终第一路径的位置。 根据本发明的装置至少包括用于噪声阈值计算的模块，用于旁瓣抑制的模块和用于第一路径模糊度检测和校正的模块。

公开(公告)号：US20070115870A1

公开(公告)日：2007-05-24

申请号：US10558829

申请日：2004-05-28

申请人： Bin Xu ,  Fangfu Guo ,  Xinxi Diao ,  Huangqiu Ye

发明人： Bin Xu ,  Fangfu Guo ,  Xinxi Diao ,  Huangqiu Ye

IPC分类号： H04B7/185

CPC分类号： H04B1/7113 ,  H04B1/7117

摘要： The present invention relates to a method and apparatus of precise first-path detection in CDMA mobile communications systems, comprising the steps of: a. calculating the noise threshold for the first-path detection according to the multi-path profile; b. judging whether there is a maximum point exceeding the noise threshold in the multi-path profile, if yes, carrying out side-lobe suppression at this maximum point and obtaining the candidate first path; otherwise, setting the flag of no first path existing, and exiting the entire process of first-path detection; c. judging according to the location of the candidate first path whether the first path is ambiguous, if yes, carrying out correction of first-path ambiguity, obtaining the corrected location of final first path, and exiting the entire first-path detection process; otherwise, outputting the location of candidate first path as the location of final first path. The apparatus in accordance with this invention comprises at least a module for noise threshold calculation, a module for side-lobe suppression, and a module for first-path ambiguity detection and correction.

摘要翻译： 本发明涉及CDMA移动通信系统中的精确第一路径检测的方法和装置，包括以下步骤：a。 根据多路径轮廓计算第一路径检测的噪声阈值; b。 判断在多路径分布中是否存在超过噪声阈值的最大点，如果是，则在该最大点执行旁瓣抑制并获得候选的第一路径; 否则，设置不存在第一条路径的标志，并退出整个第一路径检测过程; C。 根据候选第一路径的位置判断第一路径是否不明确，如果是，执行第一路径模糊度的校正，获得最终第一路径的校正位置，并退出整个第一路径检测过程; 否则，输出候选第一路径的位置作为最终第一路径的位置。 根据本发明的装置至少包括用于噪声阈值计算的模块，用于旁瓣抑制的模块和用于第一路径模糊度检测和校正的模块。

公开(公告)号：US20050124368A1

公开(公告)日：2005-06-09

申请号：US10500598

申请日：2002-03-29

申请人： Xinxi Diao ,  Fangfu Guo

发明人： Xinxi Diao ,  Fangfu Guo

IPC分类号： G01S5/02 ,  H04B1/707 ,  H04Q7/38 ,  H04B17/00

CPC分类号： H04B1/7113

摘要： The invention discloses a method that identifies whether a channel is LOS or NLOS in a mobile communication system. After coherent accumulation and non-coherent accumulation have been made by the system, first the method takes power difference between the direct path and the non-direct path in a same power delay profile to identify a channel; and then the result is further determined by {overscore (τ)}/σ difference of a LOS channel and a NLOS channel (where {overscore (τ )}and σ is the mean delay and the RMS delay spread of a multipath power profile, respectively). A channel is determined as a LOS channel, if the power ratio of the Maximum Path to the Local Maximum Path is greater than a threshold K, and simultaneously the arrival time difference between the First Path and said Maximum Path is less than a time interval T; otherwise it is a NLOS channel. The method is easier to implement and compatible with the present mobile communication system.

摘要翻译： 本发明公开了一种在移动通信系统中识别信道是LOS还是NLOS的方法。 在系统进行相干累加和非相干累加之后，首先采用相同的功率延迟分布中的直接路径和非直接路径之间的功率差异来识别信道; 然后结果进一步由{overcore（LOS信道和NLOS信道的τ/ sigma差异（其中{overscore（tauand sigma分别是多径功率分布的平均延迟和RMS延迟扩展））确定。 被确定为LOS信道，如果最大路径到本地最大路径的功率比大于阈值K，并且同时第一路径和所述最大路径之间的到达时间差小于时间间隔T;否则 它是一个NLOS通道，该方法更容易实现，与目前的移动通信系统兼容。

公开(公告)号：US07099640B2

公开(公告)日：2006-08-29

申请号：US10500598

申请日：2002-03-29

申请人： Xinxi Diao ,  Fangfu Guo

发明人： Xinxi Diao ,  Fangfu Guo

IPC分类号： H04B1/06 ,  H04B1/68

CPC分类号： H04B1/7113

摘要： The invention discloses a method that identifies whether a channel is LOS or NLOS in a mobile communication system. After coherent accumulation and non-coherent accumulation have been made by the system, first the method takes power difference between the direct path and the non-direct path in a same power delay profile to identify a channel; and then the result is further determined by {overscore (τ)}/σ difference of a LOS channel and a NLOS channel (where {overscore (τ)} and σ is the mean delay and the RMS delay spread of a multipath power profile, respectively). A channel is determined as a LOS channel, if the power ratio of the Maximum Path to the Local Maximum Path is greater than a threshold K, and simultaneously the arrival time difference between the First Path and said Maximum Path is less than a time interval T; otherwise it is a NLOS channel. The method is easier to implement and compatible with the present mobile communication system.

摘要翻译： 本发明公开了一种在移动通信系统中识别信道是LOS还是NLOS的方法。 在系统进行相干累加和非相干累加之后，首先采用相同的功率延迟分布中的直接路径和非直接路径之间的功率差异来识别信道; 然后结果进一步由{overcore（LOS通道和NLOS通道的tau / sigma差异（其中超过（tau和sigma分别是多径功率曲线的平均延迟和RMS延迟扩展））决定。 如果本地最大路径的最大路径的功率比大于阈值K，则同时将第一路径与所述最大路径之间的到达时间差小于时间间隔T; 否则是NLOS通道，该方法更容易实现，与目前的移动通信系统兼容。

公开(公告)号：US20120257551A1

公开(公告)日：2012-10-11

申请号：US13258190

申请日：2010-06-22

申请人： Xinxi Diao ,  Zhengrong Lai ,  Xiaodong Zhu ,  Zhifeng Ma ,  Guang Yang

发明人： Xinxi Diao ,  Zhengrong Lai ,  Xiaodong Zhu ,  Zhifeng Ma ,  Guang Yang

IPC分类号： H04J4/00 ,  H04W72/04

CPC分类号： H04W72/0493 ,  H04W72/048 ,  H04W72/082

摘要： The present invention provides a method for duplexing communication, and a method and a system for scheduling a terminal. The method for scheduling a terminal includes: determining capability information of the terminal when the terminal makes a request for a service; allocating a band resource for the terminal according to the capability information of the terminal and the currently available band resources, and sending information of the allocated band resource to the terminal in the band currently used by the terminal, wherein the allocated band resource includes a bidirectionally used band, and at least one of the uplink band and downlink band includes a unidirectional band; and communicating with the terminal in the manner of time division duplexing by way of the allocated band resource. The present invention makes the best of the band resources near the TDD licensed band and improves the communication efficiency.

摘要翻译： 本发明提供了一种用于双工通信的方法，以及用于调度终端的方法和系统。 终端的调度方法包括：当终端进行服务请求时，确定终端的能力信息; 根据终端的能力信息和当前可用的频带资源分配终端的频带资源，并且将已分配的频带资源的信息发送给终端当前使用的频带中的终端，其中所分配的频带资源包括双向 所述上行频带和下行频带中的至少一个包括单向频带; 并通过分配的频带资源以时分双工方式与终端通信。 本发明使得TDD授权频带附近的频带资源最好，提高了通信效率。

公开(公告)号：US07283787B2

公开(公告)日：2007-10-16

申请号：US10511569

申请日：2003-01-27

申请人： Xinxi Diao ,  Jiancheng Du

发明人： Xinxi Diao ,  Jiancheng Du

IPC分类号： H04B7/15 ,  H04B7/185 ,  H04B3/36 ,  H04B7/17 ,  H04B17/92

CPC分类号： H04B7/155 ,  H04W16/26

摘要： The present invention relates to a repeater for positioning mobile station and a method thereof. The repeater according to the present invention is implemented through adding a cell identifier generator module to the downlink circuit structure of a conventional repeater; said cell identifier generator module includes: a synchronization searching unit designed to search for base station synchronization signal, a time delay unit designed to generate a fixed delay between start time of cell identifier signal frame and start time of base station pilot signal frame, and a cell identifier signal generating unit designed to generate cell identifier signal code word. The mobile station positioning method determines the mobile station is in the coverage of the repeater on the basis that the time difference between base station pilot signal and cell identifier signal is consistent to the fixed delay; then the method utilizes TOA (Time of Arrival) measuring function to determine the distance from the mobile station to the repeater; thus it improves positioning accuracy of mobile stations in the coverage of the repeater. The repeater for positioning mobile station is easy to implement and can meet the positioning requirement of a plurality of mobile stations in the coverage of the repeater.

摘要翻译： 本发明涉及一种用于定位移动台的中继器及其方法。 根据本发明的中继器通过将小区标识符生成器模块添加到常规中继器的下行链路电路结构来实现; 所述小区标识符发生器模块包括：设计用于搜索基站同步信号的同步搜索单元，设计成在小区标识符信号帧的开始时间和基站导频信号帧的起始时间之间产生固定延迟的时间延迟单元，以及 小区标识符信号生成单元，用于生成小区标识信号码字。 移动台定位方法基于基站导频信号与小区标识符信号之间的时差与固定延迟一致，确定移动台处于中继器的覆盖范围内; 那么该方法利用TOA（到达时间）测量功能来确定从移动台到中继器的距离; 从而提高了移动台在中继器覆盖范围内的定位精度。 用于定位移动台的中继器易于实现，并且可以满足中继器覆盖范围内的多个移动台的定位要求。

公开(公告)号：US20090154582A1

公开(公告)日：2009-06-18

申请号：US12302052

申请日：2006-05-24

申请人： Xinxi Diao

发明人： Xinxi Diao

IPC分类号： H04L27/28 ,  H04B15/00

CPC分类号： H04H20/67 ,  H04H20/42 ,  Y02D70/1222 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168

摘要： A cooperative transmission system for single frequency digital broadcasting network and method thereof are disclosed, said system includes a first double-layer cooperative transmission structure with same frequency and a second double-layer cooperative transmission structure with same frequency, which are vertically aggregated; wherein each of the double-layer cooperative transmission structures with same frequency is made up of a main transmission layer including several main transmitters with same transmitting frequency and an auxiliary transmission layer including several auxiliary transmitters with same transmitting frequency; the electromagnetic wave transmitted by the main transmitters in the first double-layer cooperative transmission structure with same frequency and the electromagnetic wave transmitted by the main transmitters in the second double-layer cooperative transmission structure with same frequency have different frequencies. The present invention makes up the disadvantage of the single frequency network, and can greatly improve the spectrum efficiency of broadcasting channel, the coverage (especially the indoor coverage) of broadcasting signal and the effect of mobile receiving of broadcasting signal.

摘要翻译： 公开了一种用于单频数字广播网络的协作传输系统及其方法，所述系统包括具有相同频率的第一双层协作传输结构和具有相同频率的第二双层协作传输结构，其垂直聚合; 其中具有相同频率的双层协作传输结构中的每一个由包括具有相同发射频率的几个主发射机的主传输层和包括具有相同发射频率的多个辅助发射机的辅助传输层组成; 在主频率相同频率的第一双层协作传输结构中，主发射机发射的电磁波频率相同，第二双层协作传输结构中主发射机发射的电磁波频率不同。 本发明弥补了单频网络的缺点，可以大大提高广播频道的频谱效率，广播信号的覆盖（特别是室内覆盖）和广播信号的移动接收效果。

公开(公告)号：US20120275352A1

公开(公告)日：2012-11-01

申请号：US13519154

申请日：2010-06-11

申请人： Xinxi Diao ,  Zhifeng Ma ,  Zhengrong Lai ,  Xiaodong Zhu ,  Guang Yang

发明人： Xinxi Diao ,  Zhifeng Ma ,  Zhengrong Lai ,  Xiaodong Zhu ,  Guang Yang

IPC分类号： H04J3/00 ,  H04J1/00

CPC分类号： H04B7/15542

摘要： A wireless relay device includes: a first receiving channel configured to receive signals from a base station or from a base station and a terminal, a second receiving channel configured to receive signals from the terminal, a first sending channel configured to send signals to the base station or to the base station and the terminal, and a second sending channel configured to send signals to the terminal, and further includes a radio frequency control unit configured to, during communicating with the base station and the terminal, control the first receiving channel, the second receiving channel, the first sending channel and the second sending channel to use frequency bands in the following mode: receiving signals synchronously from the base station and the terminal in a first time interval, and sending signals synchronously to the base station and the terminal in a second time interval, wherein the third frequency band and the fifth frequency band are two guard bands between the working frequency band of a Frequency Division Duplex (FDD) system and the second frequency band serving as the working frequency band of a Time Division Duplex (TDD) system. The disclosure realizes the bidirectional relay communication between the base station and the terminal by using an idle guard band, increasing the utilization efficiency and the utilization flexibility of the guard band.

摘要翻译： 无线中继装置包括：第一接收信道，被配置为从基站或从基站和终端接收信号，第二接收信道，被配置为从终端接收信号;第一发送信道，被配置为向基站发送信号 以及配置为向终端发送信号的第二发送信道，还包括射频控制单元，被配置为在与基站和终端通信期间控制第一接收信道， 第二接收信道，第一发送信道和第二发送信道以下述方式使用频带：在第一时间间隔中从基站和终端同步接收信号，并且同步地向基站和终端发送信号 在第二时间间隔中，其中第三频带和第五频带是卫星之间的两个保护带 频分双工（FDD）系统的主频带和作为时分双工（TDD）系统的工作频带的第二频带。 本公开通过使用空闲保护带实现基站与终端之间的双向中继通信，提高了保护频带的利用效率和利用灵活性。

公开(公告)号：US08068452B2

公开(公告)日：2011-11-29

申请号：US12302052

申请日：2006-05-24

申请人： Xinxi Diao

发明人： Xinxi Diao

IPC分类号： H04W4/00

CPC分类号： H04H20/67 ,  H04H20/42 ,  Y02D70/1222 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168

摘要： A cooperative transmission system for single frequency digital broadcasting network and method thereof are disclosed, said system includes a first double-layer cooperative transmission structure with same frequency and a second double-layer cooperative transmission structure with same frequency, which are vertically aggregated; wherein each of the double-layer cooperative transmission structures with same frequency is made up of a main transmission layer including several main transmitters with same transmitting frequency and an auxiliary transmission layer including several auxiliary transmitters with same transmitting frequency; the electromagnetic wave transmitted by the main transmitters in the first double-layer cooperative transmission structure with same frequency and the electromagnetic wave transmitted by the main transmitters in the second double-layer cooperative transmission structure with same frequency have different frequencies. The present invention makes up the disadvantage of the single frequency network, and can greatly improve the spectrum efficiency of broadcasting channel, the coverage (especially the indoor coverage) of broadcasting signal and the effect of mobile receiving of broadcasting signal.

摘要翻译： 公开了一种用于单频数字广播网络的协作传输系统及其方法，所述系统包括具有相同频率的第一双层协作传输结构和具有相同频率的第二双层协作传输结构，其垂直聚合; 其中具有相同频率的双层协作传输结构中的每一个由包括具有相同发射频率的几个主发射机的主传输层和包括具有相同发射频率的多个辅助发射机的辅助传输层组成; 在主频率相同频率的第一双层协作传输结构中，主发射机发射的电磁波频率相同，第二双层协作传输结构中主发射机发射的电磁波频率不同。 本发明弥补了单频网络的缺点，可以大大提高广播频道的频谱效率，广播信号的覆盖（特别是室内覆盖）和广播信号的移动接收效果。

公开(公告)号：US20120250591A1

公开(公告)日：2012-10-04

申请号：US13509579

申请日：2010-06-12

申请人： Xinxi Diao ,  Xiaodong Zhu ,  Zhengrong Lai ,  Zhifeng Ma ,  Guang Yang

发明人： Xinxi Diao ,  Xiaodong Zhu ,  Zhengrong Lai ,  Zhifeng Ma ,  Guang Yang

IPC分类号： H04W72/04 ,  H04J1/00 ,  H04J3/00

CPC分类号： H04W16/10 ,  H04L5/001 ,  H04L5/0028 ,  H04L5/0064 ,  H04L5/0087 ,  H04L5/14

摘要： A method for carrier aggregation comprises: in a first time zone, sending, by a radio access point, a downlink signal to a user terminal by using a first guard band between a time division duplexing (TDD) system and a frequency division duplexing (FDD) system and a bidirectional communication band of the TDD system; or/and, in a second time zone, receiving, by the radio access point, a uplink signal sent by the user terminal using a second guard band between the TDD system and the FDD system and the bidirectional communication band. A method for dynamically allocating a spectrum is further provided. By way of the present invention, the utilization rate of the guard band and the flexibility in the use of the guard band are improved.

摘要翻译： 一种用于载波聚合的方法包括：在第一时区中，通过使用时分双工（TDD）系统和频分双工（FDD）之间的第一保护带，由无线电接入点向用户终端发送下​​行链路信号 ）系统和TDD系统的双向通信频带; 或/和在第二时区，由无线接入点接收由TDD系统和FDD系统之间的第二保护频带和双向通信频带由用户终端发送的上行链路信号。 还提供了用于动态分配频谱的方法。 通过本发明，提高了保护带的利用率和使用保护带的灵活性。