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。

公开(公告)号：US20090179755A1

公开(公告)日：2009-07-16

申请号：US12007516

申请日：2008-01-11

申请人： Rainer W. Bachl ,  Fang-Chen Cheng ,  Jung Ah Lee

发明人： Rainer W. Bachl ,  Fang-Chen Cheng ,  Jung Ah Lee

IPC分类号： G08B21/00 ,  H04M11/00

CPC分类号： H04W72/082 ,  H04W72/0426 ,  H04W92/20

摘要： A method may include determining a metric for at least one physical resource block of a wireless cellular network in at least a one cell. Each physical resource block may include a set of frequencies, and/or the metric may be based on interference on the at least one physical resource block in the at least one cell. A determination of whether the metric violates a metric threshold may be made, and an overload indicator may be sent to at least one other cell if the metric violates the metric threshold.

摘要翻译： 一种方法可以包括确定至少一个小区中的无线蜂窝网络的至少一个物理资源块的度量。 每个物理资源块可以包括一组频率，和/或度量可以基于至少一个小区中的至少一个物理资源块上的干扰。 可以做出该度量是否违反度量阈值的确定，并且如果度量违反度量阈值，则可以向至少一个其他小区发送过载指示符。

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。

公开(公告)号：US07376119B2

公开(公告)日：2008-05-20

申请号：US10422844

申请日：2003-04-25

申请人： Fang-Chen Cheng

发明人： Fang-Chen Cheng

IPC分类号： H04J3/06

CPC分类号： H04W56/005 ,  H04W56/0075

摘要： In a method of controlling downlink transmission timing at a radio network controller (RNC) in a communication system, a relative window is determined. The relative window represents a time difference between an arrival time of a data frame at the RNC from a core network, and a target transmission time for transmitting the data frame from the RNC to a Node-B. Boundary thresholds that adjoin the relative window are set, and a target arrival time that a data frame is to be received at the RNC is compared to the thresholds. The RNC may send a request to advance or retard sending of the data frame to the core network, depending on whether target arrival time of the data frame is outside one of the thresholds. A data frame received within the relative window is transmitted from the RNC to a Node-B.

摘要翻译： 在通信系统中的无线网络控制器（RNC）的控制下行链路发送定时的方法中，确定相对窗口。 相对窗口表示来自核心网的RNC处的数据帧的到达时间与从RNC到节点B的数据帧发送的目标发送时间之间的时间差。 设置与相对窗口相邻的边界阈值，并将在RNC处接收数据帧的目标到达时间与阈值进行比较。 RNC可以根据数据帧的目标到达时间是否超出阈值之一，发送将数据帧发送到核心网络的请求。 在相对窗口内接收到的数据帧从RNC发送到节点B。

公开(公告)号：US20070254598A1

公开(公告)日：2007-11-01

申请号：US11415945

申请日：2006-05-01

申请人： Rainer Bachl ,  Fang-Chen Cheng ,  Lei Song

发明人： Rainer Bachl ,  Fang-Chen Cheng ,  Lei Song

IPC分类号： H04B1/38

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。

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。

公开(公告)号：US20060176869A1

公开(公告)日：2006-08-10

申请号：US11055019

申请日：2005-02-09

申请人： Fang-Chen Cheng ,  Shupeng Li ,  Yifei Yuan

发明人： Fang-Chen Cheng ,  Shupeng Li ,  Yifei Yuan

IPC分类号： H04J3/00

CPC分类号： H04W72/1231

摘要： A method is provided for controlling a wireless communications system. The method comprises dynamically selecting one of a first and second transmission time interval for communications over a channel between a first and second device based on at least one operating characteristic of the channel.