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21. 发明授权

US08345804B2 Simplified RACH preamble detection receiver 有权
标题翻译：简化的RACH前导码检测接收机
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。

22. 发明授权

US08150412B2 Interference mitigation in a wireless communication system 有权
标题翻译：无线通信系统中的干扰减轻
公开(公告)号：US08150412B2
公开(公告)日：2012-04-03
申请号：US11368790
申请日：2006-03-06
申请人： Fang-Chen Cheng , Lei Song , Shupeng Li
发明人： Fang-Chen Cheng , Lei Song , Shupeng Li
IPC分类号： H04W72/00
CPC分类号： H04W52/40 , H04W16/04
摘要： The present invention provides a method of interference mitigation in a wireless communication system. The method that may include reducing transmission power associated with at least one first channel provided by at least one first base station associated with at least one corresponding first coverage area adjacent a second coverage area associated with a second base station concurrently with maintaining at least one transmission power associated with the second base station(s). The method may also include increasing the transmission power associated with the first channel(s) provided by the first base station(s) concurrently with reducing at least one transmission power associated with at least one first channel provided by the second base station(s).
摘要翻译：本发明提供了一种在无线通信系统中的干扰减轻的方法。该方法可以包括降低与由至少一个第一基站相关联的至少一个第一信道所提供的传输功率，所述至少一个第一信道与与第二基站相关联的第二覆盖区域相邻的至少一个对应的第一覆盖区域相关联，同时保持至少一个传输与第二基站相关联的功率。该方法还可以包括同时降低与第一基站提供的第一信道相关联的发射功率，同时减少与由第二基站提供的至少一个第一信道相关联的至少一个传输功率，。

23. 发明授权

US07929962B2 Method for controlling radio communications during idle periods in a wireless system 有权
标题翻译：用于在无线系统中的空闲周期期间控制无线电通信的方法
公开(公告)号：US07929962B2
公开(公告)日：2011-04-19
申请号：US11415945
申请日：2006-05-01
申请人： Rainer Walter Bachl , Fang-Chen Cheng , Lei Song
发明人： Rainer Walter Bachl , Fang-Chen Cheng , Lei Song
IPC分类号： H04W24/00
CPC分类号： H04L27/261 , H04B7/2637 , H04W72/1226
摘要： A method is provided for maintaining synchronization between an AT and a base station during an idle period. During the idle period, a reduced number of uplink reference signals for uplink channel quality estimation are sent to the base station by the AT. The uplink reference signals are sent to assist coherent demodulation and uplink channel quality estimation for scheduling. During the uplink idle period, the numbers of uplink reference signals are designed to be reduced in selective coherent bandwidths. The selection of the coherent bandwidth alternates in time and covers the entire spectrum to allow the channel quality estimation through the entire spectrum.
摘要翻译：提供了一种用于在空闲时段期间保持AT与基站之间的同步的方法。在空闲期间，用于上行链路信道质量估计的上行链路参考信号的数量减少由AT发送到基站。发送上行链路参考信号以协助相干解调和上行链路信道质量估计进行调度。在上行链路空闲时段期间，上行链路参考信号的数量被设计为在选择性相干带宽中减少。相干带宽的选择在时间上交替并且覆盖整个频谱以允许通过整个频谱的信道质量估计。

24. 发明授权

US07903605B2 Coordinating transmission scheduling among multiple base stations 有权
标题翻译：协调多个基站之间的传输调度
公开(公告)号：US07903605B2
公开(公告)日：2011-03-08
申请号：US12684250
申请日：2010-01-08
申请人： Fang-Chen Cheng , Shupeng-Li , Lei Song
发明人： Fang-Chen Cheng , Shupeng-Li , Lei Song
IPC分类号： H04W4/00
CPC分类号： H04W72/1278 , H04B7/022 , H04W16/10 , Y02D70/122 , Y02D70/1242 , Y02D70/1244 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/442
摘要： A method and an apparatus for scheduling transmissions of a plurality of cells in a wireless communications system including one or more base stations is provided. The method comprises providing a set of virtual channels to enable an intra-cell transmission orthogonal to another transmission within each cell of the plurality of cells and inter-cell transmissions orthogonal to other transmissions across a cluster of cells associated with the one or more base stations. The method further comprises exchanging signaling messages between two or more base stations to coordinate scheduling of the intra-cell transmission with the inter-cell transmissions for the cluster of cells. For optimizing a parameter associated with scheduling of a plurality of users from a cluster of cells in a wireless communication system, an optimal power level for the parameter of each active user may be searched to maximize an indication of system capacity of the wireless communication system. This enables a coordinated jointly scheduling of the users active in the cluster of cells based on the optimal power levels such that the total interference within the cluster may be minimized to maximize the system throughput/capacity.
摘要翻译：提供了一种用于在包括一个或多个基站的无线通信系统中调度多个小区的传输的方法和装置。该方法包括提供一组虚拟信道以使得能够与多个小区的每个小区内的另一个传输正交的小区内传输，以及与一个或多个基站相关联的小区的其他传输正交的小区间传输。该方法还包括在两个或多个基站之间交换信令消息以协调小区内传输的调度与小区簇的小区间传输。为了优化与来自无线通信系统中的小区的集群的多个用户的调度相关联的参数，可以搜索每个活动用户的参数的最佳功率电平以最大化无线通信系统的系统容量的指示。这使得能够基于最佳功率电平来协调在小区集群中活动的用户的协调调度，使得可以最小化集群内的总干扰以使系统吞吐量/容量最大化。

25. 发明授权

US07844277B2 Method for coordinated control of radio resources in a distributed wireless system 有权
标题翻译：分布式无线系统中无线电资源的协调控制方法
公开(公告)号：US07844277B2
公开(公告)日：2010-11-30
申请号：US11386065
申请日：2006-03-21
申请人： Fang-Chen Cheng , Shupeng Li , Lei Song
发明人： Fang-Chen Cheng , Shupeng Li , Lei Song
IPC分类号： H04Q7/20
CPC分类号： H04W28/00 , H04W24/02 , H04W72/00 , H04W92/04 , H04W92/045 , H04W92/20
摘要： A method is provided for coordinating distributed radio resource management. The method comprises communicating information between a plurality of units having radio resource management responsibilities, wherein the communicated information is related to radio resources associated with each unit.
摘要翻译：提供了一种协调分布式无线电资源管理的方法。该方法包括在具有无线电资源管理责任的多个单元之间传送信息，其中所传送的信息与与每个单元相关联的无线电资源相关。

26. 发明授权

US07782967B2 Method of frequency offset compensation 有权
标题翻译：频偏补偿方法
公开(公告)号：US07782967B2
公开(公告)日：2010-08-24
申请号：US11842398
申请日：2007-08-21
申请人： Fang-Chen Cheng , Lei Song , Robert Soni
发明人： Fang-Chen Cheng , Lei Song , Robert Soni
IPC分类号： H04K1/10
CPC分类号： H04L5/023 , H04L27/2657 , H04L2027/0034
摘要： The present invention provides a method of processing a baseband signal including user signals transmitted by a plurality of users. The method includes applying frequency offset compensations to the baseband signal, thereby to form respective frequency-shifted baseband signals. Each frequency compensation shifts the baseband signal by a multiple of a selected frequency offset and each resulting frequency-shifted baseband signal includes frequency-shifted user signals. The method also includes assigning at least some of the frequency-shifted user signals to groups. Each group corresponds to one of the frequency compensations and the assignment is carried out so that each group includes frequency-shifted user signals that have an estimated frequency offset that lies within a range determined by the corresponding frequency compensation. The method further includes estimating a frequency offset of each of the user signals based on the frequency-shifted user signal and the frequency compensation of the group including the frequency-shifted user signal.
摘要翻译：本发明提供一种处理包括由多个用户发送的用户信号的基带信号的方法。该方法包括对基带信号应用频率补偿补偿，从而形成相应的频移基带信号。每个频率补偿将基带信号移位所选频率偏移的倍数，并且每个所得到的频移基带信号包括频移用户信号。该方法还包括将至少一些频移用户信号分配给组。每个组对应于频率补偿之一，并且执行分配，使得每个组包括具有位于由对应的频率补偿确定的范围内的估计频率偏移的频移用户信号。该方法还包括基于频移用户信号和包括频移用户信号的组的频率补偿来估计每个用户信号的频率偏移。

27. 发明申请

US20090196238A1 MULTIPLEXING PUCCH INFORMATION 有权
标题翻译：多路复用PUCCH信息
公开(公告)号：US20090196238A1
公开(公告)日：2009-08-06
申请号：US12237849
申请日：2008-09-25
申请人： Fang-Chen Cheng , Lei Song
发明人： Fang-Chen Cheng , Lei Song
IPC分类号： H04W72/00
CPC分类号： H04L5/0053 , H04L1/0027 , H04L1/1671 , H04L1/1692 , H04L1/1893 , H04L5/0007
摘要： An exemplary method of communicating includes multiplexing control signaling in a physical uplink control channel (PUCCH) onto a physical uplink shared channel (PUSCH) by puncturing PUSCH data with PUCCH control information using a uniform distribution of the PUCCH information within at least one resource block of the PUSCH data. One example includes using a first constant amplitude zero autocorrelation sequence (CAZAC) index on PUCCH for communicating CQI and ACK information together and using a second, different CAZAC sequence index for communicating CQI information alone or with NAK information or DTX. The used index provides an indication of whether ACK information is communicated. The used index also provides implicit DTX detection without additional processing.
摘要翻译：一种通信的示例性方法包括：在物理上行链路控制信道（PUCCH）中将控制信令复用到物理上行链路共享信道（PUSCH）上，通过使用PUCCH信息在PUCCH资源块的至少一个资源块内均匀分布PUCCH信息 PUSCH数据。一个例子包括在PUCCH上使用第一恒定幅度零自相关序列（CAZAC）索引，用于一起传送CQI和ACK信息，并且使用第二不同的CAZAC序列索引来单独地传送CQI信息或与NAK信息或DTX通信。所使用的索引提供ACK信息是否通信的指示。使用的索引还提供隐含的DTX检测，无需额外的处理。

28. 发明申请

US20080310561A1 SIMPLIFIED RACH PREAMBLE DETECTION RECEIVER 有权
标题翻译：简化的RACH前缀检测接收器
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。

29. 发明申请

US20070225003A1 Method for coordinated control of radio resources in a distributed wireless system 有权
标题翻译：分布式无线系统中无线电资源的协调控制方法
公开(公告)号：US20070225003A1
公开(公告)日：2007-09-27
申请号：US11386065
申请日：2006-03-21
申请人： Fang-Chen Cheng , Shupeng Li , Lei Song
发明人： Fang-Chen Cheng , Shupeng Li , Lei Song
IPC分类号： H04Q7/20
CPC分类号： H04W28/00 , H04W24/02 , H04W72/00 , H04W92/04 , H04W92/045 , H04W92/20
摘要： A method is provided for coordinating distributed radio resource management. The method comprises communicating information between a plurality of units having radio resource management responsibilities, wherein the communicated information is related to radio resources associated with each unit.
摘要翻译：提供了一种协调分布式无线电资源管理的方法。该方法包括在具有无线电资源管理责任的多个单元之间传送信息，其中所传送的信息与与每个单元相关联的无线电资源相关。

30. 发明授权

US08324520B2 Disconnector with front and side operational access 有权
标题翻译：具有前端和侧面操作通道的隔离开关
公开(公告)号：US08324520B2
公开(公告)日：2012-12-04
申请号：US12793742
申请日：2010-06-04
申请人： Lei Song
发明人： Lei Song
IPC分类号： H01H3/42
CPC分类号： H01H3/42 , H01H11/0018 , H01H71/56
摘要： A disconnector is disclosed, including a first operating element. The operating element is provided with a pivoting element, including a cam wheel which is in the form of a disk and has two opposite cams, with the rotation axis of this cam wheel which is in the form of a disk being at right angles to the axis of the first operating element, and with the cam wheel which is in the form of a disk having two protuberances, which can in each case make contact with the pivoting element in different operating states. In at least one embodiment, the disconnector includes a holding opening, which is arranged on at least one end surface, which is in the form of a disk, of the cam wheel which is in the form of a disk, and including a second operating element, which is fitted in the holding opening, with this second operating element having a body, an operating opening which is located in the center part of the body, and two vane pieces which are fitted on both sides of the body. In at least one embodiment, the second operating element can rotate relative to the holding opening, and can produce a rotatary movement of the cam wheel which is in the form of a disk. The disconnector according to at least one embodiment of the invention can be operated both from the front and from the side, with side operation being independent manual operation.
摘要翻译：公开了一种隔离开关，包括第一操作元件。操作元件设置有枢转元件，该枢转元件包括呈圆盘形状的凸轮，并具有两个相对的凸轮，该凸轮的旋转轴线呈盘形，该旋转轴呈圆形第一操作元件的轴线以及具有两个突起的盘形式的凸轮，其可以在每种情况下以不同的操作状态与枢转元件接触。在至少一个实施例中，隔离开关包括保持开口，该保持开口布置在呈圆盘形状的凸轮的形式的至少一个端面上，该凸轮为圆盘形，并且包括第二操作元件，其安装在保持开口中，该第二操作元件具有主体，位于主体的中心部分中的操作开口和安装在主体两侧的两个叶片。在至少一个实施例中，第二操作元件可以相对于保持开口旋转，并且可以产生呈盘形式的凸轮的旋转运动。根据本发明的至少一个实施例的隔离开关可以从前侧和从侧面操作，侧面操作是独立的手动操作。

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