公开(公告)号：US07760793B2

公开(公告)日：2010-07-20

申请号：US11542104

申请日：2006-10-04

申请人： Ülo Parts ,  Anders Østergaard Nielsen ,  Kaj Jansen

发明人： Ülo Parts ,  Anders Østergaard Nielsen ,  Kaj Jansen

IPC分类号： H04L27/30

CPC分类号： H04B7/2681 ,  H04B1/70735 ,  H04B1/70752 ,  H04B1/7083 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04J11/0073 ,  H04W56/0085

摘要： A communications network and method thereof include a base station controller configured to provide a repetition period of a primary synchronization channel to be equal to a predetermined integer value times a scrambling code length of the scrambling code of a common pilot channel. A user equipment in the network is configured to search for a known sequence comprising the primary synchronization channel to select a cell and a corresponding sub-frame/symbol timing from the selected cell.

摘要翻译： 通信网络及其方法包括：基站控制器，被配置为将主同步信道的重复周期提供给等于预定整数值乘以公共导频信道的扰码的扰码长度。 网络中的用户设备被配置为搜索包括主同步信道的已知序列以从所选择的小区中选择小区和对应的子帧/符号定时。

公开(公告)号：US20080165710A1

公开(公告)日：2008-07-10

申请号：US12069015

申请日：2008-02-05

申请人： Ulo Parts ,  Kaj Jansen

发明人： Ulo Parts ,  Kaj Jansen

IPC分类号： H04J3/00

CPC分类号： H04L7/06 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0058 ,  H04L5/1484

摘要： The specification and drawings present a new method, system, apparatus and software product for using DL sub-frames with a unique pilot structure for TDD communications between a network element and a user equipment. In order to have equally good estimation for, e.g., channel, SIR and/or CQI estimation in the edges of a TDD sub-frame, the pilot structure should take into account UL/DL frame boundaries. In other words, a DL TDD sub-frame (e.g., 0.5 ms in duration) or sub-frames, adjacent in time domain to an UL TDD sub-frame can have higher total pilot energy than non-adjacent downlink TDD sub-frames by a pre-selected value or values.

摘要翻译： 本说明书和附图提出了一种新的方法，系统，装置和软件产品，用于使用具有独特导频结构的DL子帧，用于网元和用户设备之间的TDD通信。 为了对TDD子帧的边缘中的信道，SIR和/或CQI估计具有同样好的估计，导频结构应考虑UL / DL帧边界。 换句话说，在时域中与UL TDD子帧相邻的DL TDD子帧（例如，持续时间为0.5ms）或子帧可以具有比非相邻下行链路TDD子帧更高的总导频能量， 预选的值或值。

公开(公告)号：US20070253319A1

公开(公告)日：2007-11-01

申请号：US11412256

申请日：2006-04-27

申请人： Kaj Jansen

发明人： Kaj Jansen

IPC分类号： H04J11/00

CPC分类号： H04L27/2655 ,  H04L27/261 ,  H04L27/2675

摘要： A solution for signal detection in a radio receiver receiving multicarrier signals is disclosed. According to the provided solution, the radio receiver receives a radio signal and converts the received radio signal into digital samples. Since a desired signal being detected occupies only a portion of subcarriers of a signal the radio receiver is configured to receive, the received signal is heavily oversampled. A detection procedure may be simplified by utilizing this oversampling. A relation between the known total bandwidth of the desired signal and the total bandwidth of the received radio signal may be calculated, and utilized in the actual signal detection. The signal detection is based on sliding correlation in which the samples of the received signal are correlated with a reference signal with different phase shifts between the two signals. As the result of the correlation, the received signal is determined to be either the desired signal or noise.

摘要翻译： 公开了一种在接收多载波信号的无线电接收机中进行信号检测的方案。 根据所提供的解决方案，无线电接收机接收无线电信号并将接收的无线电信号转换为数字样本。 由于检测到的期望信号仅占用无线电接收机的一部分子载波被配置为接收，所以接收到的信号被过度采样。 可以通过利用该过采样来简化检测过程。 可以计算所需信号的已知总带宽与接收的无线电信号的总带宽之间的关系，并用于实际的信号检测。 信号检测基于滑动相关，其中接收信号的样本与两个信号之间具有不同相移的参考信号相关。 作为相关的结果，接收信号被确定为期望的信号或噪声。

公开(公告)号：US20070116094A1

公开(公告)日：2007-05-24

申请号：US11585104

申请日：2006-10-24

申请人： Ulo Parts ,  Kaj Jansen

发明人： Ulo Parts ,  Kaj Jansen

IPC分类号： H04B1/00

CPC分类号： H04L27/2656 ,  H04J11/0086 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675

摘要： A pilot structure, a method, and a receiver for multi-carrier cellular communications communication system include a network element and a user equipment. The network element is configured to transmit a pilot sequence. The user equipment is configured to detect a pilot sequence comprising a primary synchronization sequence at predetermine number of sub-frames at a center of a bandwidth, a primary common pilot for each sub-frame, and short system information once per frame at the center of the bandwidth, and to decode the short system information to identify system frame timing and a system bandwidth of a cell.

摘要翻译： 用于多载波蜂窝通信通信系统的导频结构，方法和接收机包括网元和用户设备。 网元被配置为发送导频序列。 用户设备被配置为检测包括主同步序列的导频序列，其中预定的带宽中心的子帧数量，每个子帧的主要公共导频，以及在每个子帧的中心每帧一次的短系统信息 并且解码短系统信息以识别系统帧定时和小区的系统带宽。

公开(公告)号：US07043242B2

公开(公告)日：2006-05-09

申请号：US09773275

申请日：2001-01-31

申请人： Tapio Kuiri ,  Harri Lilja ,  Jussi Numminen ,  Kaj Jansen ,  Sami Haapoja

发明人： Tapio Kuiri ,  Harri Lilja ,  Jussi Numminen ,  Kaj Jansen ,  Sami Haapoja

IPC分类号： H04Q7/20 ,  H04Q7/00

CPC分类号： H04W36/20 ,  H04B17/309 ,  H04B17/318 ,  H04B17/354 ,  H04B17/382 ,  H04W36/08

摘要： A method and device for avoiding adjacent channel interference and reducing disconnections caused thereby, during communication between a mobile device and a base station in a wireless telecommunications network. The mobile device measures the strength of a received signal before the signal enters one or more selected filters, and compares the strength of the signal after the filtering, in order to estimate a power ratio of the adjacent channel interference to communication channel power. If the power ratio is greater than a threshold, then a handover is requested to an alternative communication channel available between the mobile device and either the base station or another base station.

公开(公告)号：US06751460B2

公开(公告)日：2004-06-15

申请号：US09730350

申请日：2000-12-05

申请人： Sari Korpela ,  Kaj Jansen

发明人： Sari Korpela ,  Kaj Jansen

IPC分类号： H04Q720

CPC分类号： H04W36/04

摘要： A method for performing a cell reselection in a system comprised of a hierarchy of cells, wherein cells of one layer of the hierarchy have a size that differs from cells of another layer of the hierarchy. The method includes steps of (a) identifying to a user equipment a layer to which individual cells in a neighbor cell list are associated; (b) when performing neighbor cell measurements for reselection purposes, avoiding a measurement of cells in the list that are larger than a current serving cell unless a Cell Selection (S) parameter falls below a search threshold parameter (Ssearch), and is greater than zero; and (c), if S is less than or equal to zero, and no cell reselection to a better cell is in process, beginning a measurement of neighbor cells without regard for their hierarchical level. If the user equipment has made cell reselection to N different cells on the same hierarchical layer within a time Tmax, the user equipment initiates a reselection procedure for larger neighbor cells. This procedure accommodates user equipment that is moving at a relatively high speed through the cells. If the user equipment locates a larger cell, which fulfills cell reselection criteria Sn>0 and Qn>Qs+Qoffsets,n+Qhyst for a period of time Treselection, cell reselection to the larger cell is made. Furthermore, if the user equipment performs a cell reselection to the larger cell, the user equipment does not attempt to reselect to a smaller cell within a time X, unless an immediate cell evaluation is triggered, wherein the time X can be pre-specified, or can be set by the network.

摘要翻译： 一种用于在由小区层级组成的系统中执行小区重选的方法，其中所述层级的一层的小区具有与所述层级的另一层的小区不同的大小。 该方法包括以下步骤：（a）向用户设备标识相邻小区列表中的各个小区与之相关联的层; （b）当执行重新选择目的的相邻小区测量时，避免对于大于当前服务小区的列表中的小区的测量，除非小区选择（S）参数低于搜索阈值参数（Ssearch），并且大于 零; 和（c），如果S小于或等于零，并且没有小区重新选择到更好的小区正在进行中，则开始相邻小区的测量而不考虑它们的层级。 如果用户设备在时间Tmax内对同一分级层上的N个不同小区进行小区重选，则用户设备对较大邻居小区启动重选过程。 该过程适应通过电池以较高速度移动的用户设备。 如果用户设备定位较大的小区，其在小区重选标准Sn> 0和Qn> Qs + Qoffsets，n + Qhyst中进行一段时间Treselection，则对较大小区进行小区重选。 此外，如果用户设备对较大的小区执行小区重选，则除非触发了即时小区评估，否则用户设备不会在时间X内重新选择到更小的小区，其中时间X可以被预先指定， 或者可以由网络设置。