-
1.发明授权Random access channel message format for an extended range wireless communication system 有权用于扩展范围无线通信系统的随机接入信道消息格式公开(公告)号：US08000306B2
公开(公告)日：2011-08-16
申请号：US11741068
申请日：2007-04-27
申请人： Fang-Chen Cheng , Jung A. Lee , Lei Song , Said Tatesh , Henry H. Ye
发明人： Fang-Chen Cheng , Jung A. Lee , Lei Song , Said Tatesh , Henry H. Ye
IPC分类号： H04J3/06
CPC分类号： H04W56/00
摘要： The present invention provides a method for transmitting and receiving random access channel messages in an extended range wireless communication system. One embodiment of the method may include accumulating, at a base station, signal energy received during a first portion of a transmission time interval. The method may also include accumulating, at the base station, signal energy received during a second portion of the transmission time interval. The first and second portions are offset from the start or end of the transmission time interval by selected delay intervals. The method may further include detecting the message(s) based on the signal energy accumulated during the first and second portions of the transmission time interval.
摘要翻译： 本发明提供了一种用于在扩展范围无线通信系统中发送和接收随机接入信道消息的方法。 该方法的一个实施例可以包括在基站处累积在传输时间间隔的第一部分期间接收到的信号能量。 该方法还可以包括在基站处累积在传输时间间隔的第二部分期间接收到的信号能量。 第一和第二部分通过所选择的延迟间隔从传输时间间隔的开始或结束偏移。 该方法还可以包括基于在传输时间间隔的第一和第二部分期间累积的信号能量来检测消息。
-
2.发明申请RANDOM ACCESS CHANNEL MESSAGE FORMAT FOR AN EXTENDED RANGE WIRELESS COMMUNICATION SYSTEM 有权用于扩展无线通信系统的随机访问信道格式公开(公告)号：US20080267134A1
公开(公告)日：2008-10-30
申请号：US11741068
申请日：2007-04-27
申请人： Fang-Chen Cheng , Jung A. Lee , Lei Song , Said Tatesh , Henry H. Ye
发明人： Fang-Chen Cheng , Jung A. Lee , Lei Song , Said Tatesh , Henry H. Ye
IPC分类号： H04B7/216
CPC分类号： H04W56/00
摘要： The present invention provides a method for transmitting and receiving random access channel messages in an extended range wireless communication system. One embodiment of the method may include accumulating, at a base station, signal energy received during a first portion of a transmission time interval. The method may also include accumulating, at the base station, signal energy received during a second portion of the transmission time interval. The first and second portions are offset from the start or end of the transmission time interval by selected delay intervals. The method may further include detecting the message(s) based on the signal energy accumulated during the first and second portions of the transmission time interval.
摘要翻译： 本发明提供了一种用于在扩展范围无线通信系统中发送和接收随机接入信道消息的方法。 该方法的一个实施例可以包括在基站处累积在传输时间间隔的第一部分期间接收到的信号能量。 该方法还可以包括在基站处累积在传输时间间隔的第二部分期间接收到的信号能量。 第一和第二部分通过所选择的延迟间隔从传输时间间隔的开始或结束偏移。 该方法还可以包括基于在传输时间间隔的第一和第二部分期间累积的信号能量来检测消息。
-
公开(公告)号：US08953562B2
公开(公告)日：2015-02-10
申请号：US11670092
申请日：2007-02-01
申请人： Rainer Bachl , Fang-Chen Cheng , Jung A. Lee , Lei Song , Said Tatesh
发明人： Rainer Bachl , Fang-Chen Cheng , Jung A. Lee , Lei Song , Said Tatesh
CPC分类号： H04W74/0866 , H04L25/0204 , H04L27/2613
摘要： The present invention provides a method and apparatus for using uplink reference signals for access grant requests. The method includes determining that at least one mobile unit is requesting access to at least one uplink channel based on information indicative of a change in a masking sequence applied to at least one reference signal. Another embodiment of the present invention includes providing a first reference signal modulated by a first masking sequence to indicate a request for access to at least one uplink channel.
摘要翻译： 本发明提供一种使用上行链路参考信号进行接入许可请求的方法和装置。 该方法包括基于指示应用于至少一个参考信号的屏蔽序列的改变的信息来确定至少一个移动单元正在请求对至少一个上行链路信道的访问。 本发明的另一实施例包括提供由第一屏蔽序列调制的第一参考信号，以指示访问至少一个上行链路信道的请求。
-
公开(公告)号：US20080186911A1
公开(公告)日：2008-08-07
申请号：US11670092
申请日：2007-02-01
申请人： Rainer Bachl , Fang-Chen Cheng , Jung A. Lee , Lei Song , Said Tatesh
发明人： Rainer Bachl , Fang-Chen Cheng , Jung A. Lee , Lei Song , Said Tatesh
IPC分类号： H04Q7/00
CPC分类号： H04W74/0866 , H04L25/0204 , H04L27/2613
摘要： The present invention provides a method and apparatus for using uplink reference signals for access grant requests. The method includes determining that at least one mobile unit is requesting access to at least one uplink channel based on information indicative of a change in a masking sequence applied to at least one reference signal. Another embodiment of the present invention includes providing a first reference signal modulated by a first masking sequence to indicate a request for access to at least one uplink channel.
摘要翻译： 本发明提供一种使用上行链路参考信号进行接入许可请求的方法和装置。 该方法包括基于指示应用于至少一个参考信号的屏蔽序列的改变的信息来确定至少一个移动单元正在请求对至少一个上行链路信道的访问。 本发明的另一实施例包括提供由第一屏蔽序列调制的第一参考信号，以指示访问至少一个上行链路信道的请求。
-
5.发明申请Method for increasing spectrum efficiency in an OFDM based multi-bandwidth wireless system 有权在基于OFDM的多带宽无线系统中提高频谱效率的方法公开(公告)号：US20070253381A1
公开(公告)日：2007-11-01
申请号：US11415993
申请日：2006-05-01
申请人： Rainer Bachl , Fang-Chen Cheng , James Seymour , Lei Song , Said Tatesh
发明人： Rainer Bachl , Fang-Chen Cheng , James Seymour , Lei Song , Said Tatesh
IPC分类号： H04Q7/24
CPC分类号： H04L5/0037 , H04L5/0007 , H04W16/12
摘要： A method is provided for operating a multi-bandwidth OFDMA system that can achieve an enhanced bandwidth efficiency due to windowing without significantly impacting the underlying physical design of the receive filters. The method comprises establishing a bandwidth over which the radio resources transmit signals, the bandwidth being comprised of an edge-band and a center-band. Narrow band radio resources are assigned to a portion of the bandwidth that is at least partially within the edge-band.
摘要翻译： 提供了一种用于操作多带宽OFDMA系统的方法，其可以通过窗口实现增强的带宽效率，而不会显着影响接收滤波器的底层物理设计。 该方法包括建立无线电资源传输信号的带宽，带宽由边缘频带和中心频带组成。 窄带无线电资源被分配给至少部分在边缘频带内的带宽的一部分。
-
6.发明授权Method for increasing spectrum efficiency in an OFDM based multi-bandwidth wireless system 有权在基于OFDM的多带宽无线系统中提高频谱效率的方法公开(公告)号：US07782900B2
公开(公告)日：2010-08-24
申请号：US11415993
申请日：2006-05-01
IPC分类号： H04J3/16
CPC分类号： H04L5/0037 , H04L5/0007 , H04W16/12
摘要： A method is provided for operating a multi-bandwidth OFDMA system that can achieve an enhanced bandwidth efficiency due to windowing without significantly impacting the underlying physical design of the receive filters. The method comprises establishing a bandwidth over which the radio resources transmit signals, the bandwidth being comprised of an edge-band and a center-band. Narrow band radio resources are assigned to a portion of the bandwidth that is at least partially within the edge-band.
摘要翻译： 提供了一种用于操作多带宽OFDMA系统的方法，其可以由于窗口而实现增强的带宽效率，而不会显着影响接收滤波器的底层物理设计。 该方法包括建立无线电资源传输信号的带宽，带宽由边缘频带和中心频带组成。 窄带无线电资源被分配给至少部分在边缘频带内的带宽的一部分。
-
公开(公告)号：US20100113050A1
公开(公告)日：2010-05-06
申请号：US12611170
申请日：2009-11-03
申请人： Fang-Chen Cheng , Said Tatesh , Jung A. Lee
发明人： Fang-Chen Cheng , Said Tatesh , Jung A. Lee
IPC分类号： H04W72/04
CPC分类号： H04W72/082 , H04L5/001 , H04L5/14 , H04L5/143 , H04W72/0453
摘要： An exemplary method of allocating bandwidth to a call for at least one user includes allocating 10 MHz of the bandwidth for a downlink between a base station and the at least one user. 5 MHz of the bandwidth are allocated for an uplink between the user and the base station. A selected amount of bandwidth is aggregated to the allocated 5 MHz for the uplink. The amount of bandwidth that is aggregated is at least one of an additional 3 MHz band or two additional 1.4 MHz bands.
摘要翻译： 向至少一个用户的呼叫分配带宽的示例性方法包括为基站和所述至少一个用户之间的下行链路分配10MHz的带宽。 为用户和基站之间的上行链路分配5MHz的带宽。 所选择的带宽量被聚合到针对上行链路的分配的5MHz。 聚合的带宽量是额外的3MHz频带或两个额外的1.4MHz频带中的至少一个。
-
公开(公告)号：US08345804B2
公开(公告)日：2013-01-01
申请号：US11946541
申请日：2007-11-28
申请人： Lei Song , Fang-Chen Cheng , Henry H. Ye
发明人： Lei Song , Fang-Chen Cheng , Henry H. Ye
IPC分类号： H03D1/00
CPC分类号： H04L27/265 , H04L27/2613 , H04L27/2652
摘要： A low complexity RACH preamble detector is described herein. The RACH preamble detection algorithm uses the peak detection of the time domain correlation function through frequency domain processing. The frequency domain processing considers the reference signals generated directly from frequency domain CAZAC sequence or time domain CAZAC sequence with DFT conversion. A low-complexity poly-phase LPF along with down sampling is implemented before the FFT to reduce the required length of the long FFT operation N-folded.
摘要翻译： 本文描述了低复杂度RACH前导码检测器。 RACH前导码检测算法通过频域处理使用时域相关函数的峰值检测。 频域处理考虑直接从频域CAZAC序列或时域CAZAC序列生成的参考信号，并进行DFT转换。 在FFT之前实现了低复杂度多相LPF以及下采样，以减少N-fold的长FFT运算所需的长度。
-
公开(公告)号：US20080310561A1
公开(公告)日：2008-12-18
申请号：US11946541
申请日：2007-11-28
申请人： Lei Song , Fang-Chen Cheng , Henry H. Ye
发明人： Lei Song , Fang-Chen Cheng , Henry H. Ye
IPC分类号： H04L27/06
CPC分类号： H04L27/265 , H04L27/2613 , H04L27/2652
摘要： A low complexity RACH preamble detector is described herein. The RACH preamble detection algorithm uses the peak detection of the time domain correlation function through frequency domain processing. The frequency domain processing considers the reference signals generated directly from frequency domain CAZAC sequence or time domain CAZAC sequence with DFT conversion. A low-complexity poly-phase LPF along with down sampling is implemented before the FFT to reduce the required length of the long FFT operation N-folded.
摘要翻译： 本文描述了低复杂度RACH前导码检测器。 RACH前导码检测算法通过频域处理使用时域相关函数的峰值检测。 频域处理考虑直接从频域CAZAC序列或时域CAZAC序列生成的参考信号，并进行DFT转换。 在FFT之前实现了低复杂度多相LPF以及下采样，以减少N-fold的长FFT运算所需的长度。
-
10.发明授权Fast handover with reduced service interruption for high speed data channels in a wireless system 有权快速切换，减少无线系统中高速数据信道的业务中断公开(公告)号：US07711367B2
公开(公告)日：2010-05-04
申请号：US10978234
申请日：2004-10-29
申请人： Fang-Chen Cheng , Teck Hu , Sudepp Kumar Palat , Said Tatesh
发明人： Fang-Chen Cheng , Teck Hu , Sudepp Kumar Palat , Said Tatesh
IPC分类号： H04W36/10
摘要： A method is provided for controlling a wireless communications system. The method comprises communicating data to a first base station, and selecting a switchover time for ceasing communications with the first base station and beginning communications with a second base station. The switchover time is based on channel conditions associated with the communications to the first and second base stations, such as SIR.
摘要翻译： 提供了一种用于控制无线通信系统的方法。 该方法包括将数据传送到第一基站，以及选择停止与第一基站的通信并开始与第二基站的通信的切换时间。 切换时间基于与与第一和第二基站的通信相关联的信道条件，例如SIR。
-
-
-
-
-
-
-
-
-
搜索结果
87 条记录 (耗时 0.025 秒)
