公开(公告)号：US20090103498A1

公开(公告)日：2009-04-23

申请号：US11876264

申请日：2007-10-22

申请人： Johan Nilsson ,  Bengt Lindoff

发明人： Johan Nilsson ,  Bengt Lindoff

IPC分类号： H04Q7/20 ,  H03M13/03

CPC分类号： H04L25/067 ,  H04B2201/709727 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/1671 ,  H04L1/1854 ,  H04L5/0007 ,  H04L5/1484 ,  H04L25/0224

摘要： Receiver resources are allocated based on how subframes are allocated within in a frame between downlink and uplink transmissions and how often the receiver is expected to report feedback information associated with the downlink transmissions. Additional time is available for processing received data blocks if the feedback information derived from those blocks must be reported later than expected due to the unavailability of uplink subframes. According to one embodiment, received signals are processed by receiving transmission configuration information indicating how downlink and uplink subframes are allocated within a frame in the time domain. Based on the transmission configuration information, the receiver determines whether a delay that exceeds a feedback reporting interval assigned to the receiver will occur when reporting feedback information associated with the downlink subframes. Receiver resources are allocated based on whether a delay will occur when reporting the feedback information.

摘要翻译： 基于如何在下行链路和上行链路传输之间的帧内分配子帧来分配接收机资源，以及接收机期望报告与下行链路传输相关联的反馈信息的频率。 如果从这些块导出的反馈信息由于上行链路子帧的不可用性而必须在晚于报告的情况下报告，则附加时间可用于处理接收到的数据块。 根据一个实施例，通过接收指示在时域中的帧内如何分配下行链路和上行链路子帧的传输配置信息来处理所接收的信号。 基于传输配置信息，当报告与下行链路子帧相关联的反馈信息时，接收机确定是否将发生超过分配给接收机的反馈报告间隔的延迟。 基于在报告反馈信息时是否发生延迟来分配接收器资源。

公开(公告)号：US20090075647A1

公开(公告)日：2009-03-19

申请号：US11856233

申请日：2007-09-17

申请人： Bengt Lindoff ,  Elias Jonsson

发明人： Bengt Lindoff ,  Elias Jonsson

IPC分类号： H04Q7/20 ,  H04B17/00

CPC分类号： H04B17/382 ,  H04B17/26 ,  H04B17/318 ,  H04W36/30

摘要： The method and apparatus described herein uses variable length snapshot periods to determine signal strength measurements. A mobile station determines the measurement bandwidth associated with a base station, and sets the snapshot period based on the measurement bandwidth. The mobile station determines the signal strength of serving and neighboring cells during snapshot periods. Such signal strength measurements may be used to assist and/or direct handover operations.

摘要翻译： 本文描述的方法和装置使用可变长度的快照周期来确定信号强度测量。 移动台确定与基站相关联的测量带宽，并根据测量带宽设置快照周期。 移动台在快照期间确定服务和相邻小区的信号强度。 这种信号强度测量可用于辅助和/或直接切换操作。

公开(公告)号：US20090036079A1

公开(公告)日：2009-02-05

申请号：US11949481

申请日：2007-12-03

申请人： Bengt Lindoff ,  Andres Reial

发明人： Bengt Lindoff ,  Andres Reial

IPC分类号： H04B1/06

CPC分类号： H04L27/3863 ,  H03D3/009 ,  H04L2027/0024

摘要： A wireless communication system receiver compensates a received signal containing an IQ gain imbalance prior to performing frequency correction. The IQ gain imbalance in the signal is estimated after frequency correction, providing an IQ gain imbalance estimate for subsequent IQ gain imbalance compensation. The IQ gain imbalance estimation includes formulating a plurality of hypotheses of phase error between I and Q signal components, and taking as the actual phase error the hypothesis that yields the maximum power ratio between I and Q signal components. The maximum power ratio is differentiated with respect to the IQ imbalance estimate. The IQ gain imbalance estimate is updated as a function of its prior value(s), the maximum power ratio, and the derivative of the maximum power ratio.

摘要翻译： 无线通信系统接收机在执行频率校正之前补偿包含IQ增益不平衡的接收信号。 在频率校正之后估计信号中的IQ增益不平衡，为随后的IQ增益不平衡补偿提供IQ增益不平衡估计。 IQ增益不平衡估计包括制定I和Q信号分量之间的相位误差的多个假设，并且将实际的相位误差作为产生I和Q信号分量之间的最大功率比的假设。 相对于IQ不平衡估计，最大功率比是不同的。 IQ增益不平衡估计作为其先前值，最大功率比和最大功率比的导数的函数进行更新。

公开(公告)号：US20080205351A1

公开(公告)日：2008-08-28

申请号：US11943440

申请日：2007-11-20

申请人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

发明人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04J11/00 ,  H04L7/00

CPC分类号： H04L27/2613 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/2626 ,  H04L27/2655 ,  H04L27/2666

摘要： A cellular communications system that utilizes OFDM in its radio interface is capable of utilizing either a first subcarrier spacing or a second subcarrier spacing. Which of these is presently in use is indicated by generating a first type of synchronization signal in response to the first subcarrier spacing presently being in use, and generating a second type of synchronization signal in response to the second subcarrier spacing presently being in use. Whichever of the first type of synchronization signal and the second type of synchronization signal was generated is transmitted. To distinguish between the first and second types of synchronization signals, a time domain representation of the second type of synchronization signal includes a plurality of instances of the first type of synchronization signal.

摘要翻译： 在其无线电接口中利用OFDM的蜂窝通信系统能够利用第一子载波间隔或第二子载波间隔。 当前正在使用中的哪一个当前正在使用时响应于当前正在使用的第一子载波间隔产生第一类型的同步信号，并且响应于当前正在使用的第二子载波间隔而产生第二类型的同步信号来指示。 发送第一类型的同步信号和第二类型的同步信号中的任何一个。 为了区分第一类型和第二类型的同步信号，第二类型的同步信号的时域表示包括第一类型的同步信号的多个实例。

公开(公告)号：US20080181194A1

公开(公告)日：2008-07-31

申请号：US11852606

申请日：2007-09-10

申请人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

发明人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04J3/06

CPC分类号： H04L27/2655 ,  H04J11/0069 ,  H04L27/2602 ,  H04L27/2675

摘要： For wireless networks that transmit synchronization signals allowing user equipment to synchronize to cells within the network and transmit reference signals allowing user equipment to determine cell identities, a method and apparatus taught herein advantageously link the synchronization signal sequences to the reference signal sequences according to a defined mapping. The linking simplifies the cell search process by allowing user equipment to determine cell identities based on mapping detected synchronization signal sequences to the corresponding reference signal or to the corresponding subset of reference signals in embodiments where there are more reference signal sequences than synchronization signal sequences. In at least one embodiment, the network is a 3G LTE network and at least the Primary Synchronization Signal (P-SyS) sequences are linked to the Downlink (DL) reference symbol sequences according to a defined mapping, thereby allowing to user equipment to determine cell identities from detected P-SyS sequences.

摘要翻译： 对于发送允许用户设备与网络中的小区同步并发送允许用户设备确定小区标识的参考信号的同步信号的无线网络，本文教导的方法和装置有利地将同步信号序列链接到参考信号序列， 映射。 该链接通过允许用户设备基于将检测到的同步信号序列映射到对应的参考信号或者在具有比同步信号序列更多的参考信号序列的参考信号序列的相应子集中来确定小区标识来简化小区搜索过程。 在至少一个实施例中，网络是3G LTE网络，并且至少主同步信号（P-SyS）序列根据定义的映射链接到下行链路（DL）参考符号序列，从而允许用户设备确定 来自检测到的P-SyS序列的细胞鉴定。

公开(公告)号：US20080081624A1

公开(公告)日：2008-04-03

申请号：US11537104

申请日：2006-09-29

申请人： Andres Reial ,  Bengt Lindoff

发明人： Andres Reial ,  Bengt Lindoff

IPC分类号： H04Q7/20

CPC分类号： H04W36/0094 ,  H04B2201/709727 ,  H04W36/30

摘要： A method and apparatus adapted to adjust threshold values for initiating HO measurements based on terminal or user equipment (UE) performance. The threshold values for initiating the HO measurements and for executing the HO may be determined by the network. Prior to determining whether to proceed with these procedures, the thresholds are adjusted, based on the actual UE performance. This adjustment is achieved by applying an offset in dB that captures the effective SIR improvement of the advanced receiver compared to the standard receiver used to set the thresholds. The offset depends on, among other things, the receiver type used, the number of receiver antennas, the multi-path channel profile, the number of active radio links, and the services/connection modes that are currently active in the UE.

摘要翻译： 一种适于基于终端或用户设备（UE）性能来调整用于发起HO测量的阈值的方法和装置。 用于启动HO测量和用于执行HO的阈值可以由网络确定。 在确定是否继续执行这些程序之前，根据实际的UE性能调整阈值。 通过应用与用于设置阈值的标准接收机相比，捕获高级接收机的有效SIR改善的以dB为单位的偏移来实现该调整。 偏移量取决于所使用的接收器类型，接收机天线的数量，多径信道简档，活动无线电链路的数量以及当前在UE中活动的服务/连接模式。

公开(公告)号：US20080031368A1

公开(公告)日：2008-02-07

申请号：US11289184

申请日：2005-11-29

申请人： Bengt Lindoff ,  Magnus Almgren ,  Henrik Asplund ,  Anders Furuskar ,  Niclas Wiberg

发明人： Bengt Lindoff ,  Magnus Almgren ,  Henrik Asplund ,  Anders Furuskar ,  Niclas Wiberg

IPC分类号： H04J11/00 ,  H04Q7/20

CPC分类号： H04W48/20 ,  H04B17/318 ,  H04B17/336 ,  H04B17/382 ,  H04L27/2601

摘要： Systems and methods of cell selection are based on measures of frequency selectivity, time selectivity, and/or antenna selectivity. For example, the delay spread and coherence bandwidth of a channel are two measures of frequency selectivity that can be taken into account in the cell selection process. In addition to or instead of either delay spread or coherence bandwidth, Doppler frequency shift or coherence time (which are two measures of time selectivity) and/or antenna correlation or mean signal strength per antenna (which are two measures of antenna selectivity), among other parameters, can be determined and taken into account.

摘要翻译： 小区选择的系统和方法基于频率选择性，时间选择性和/或天线选择性的测量。 例如，信道的延迟扩展和相干带宽是在小区选择过程中可以考虑的频率选择性的两个度量。 除了或代替延迟扩展或相干带宽，多普勒频移或相干时间（其是时间选择性的两个测量）和/或天线相关性或每个天线的平均信号强度（其是天线选择性的两个测量），在 其他参数，可以确定和考虑。

公开(公告)号：US20070297324A1

公开(公告)日：2007-12-27

申请号：US11566508

申请日：2006-12-04

申请人： Bengt Lindoff ,  Anders Wallen

发明人： Bengt Lindoff ,  Anders Wallen

IPC分类号： H04J11/00

CPC分类号： H04L27/261 ,  H04J11/0093 ,  H04L27/2656 ,  H04L27/2684 ,  H04W24/00 ,  H04W36/30 ,  H04W48/08 ,  H04W56/00 ,  H04W88/02

摘要： A method and apparatus that utilizes the synchronization channel (SCH) by the user equipment (UE) to obtain time synchronization information and to perform cell search. In order to perform the SCH detection, only a correlation between the known SCH signal and the received sequence is needed, hence the FFT is not involved in the synchronization step. Typically the SCH and pilot symbols are transmitted with a constant power which is the same for all base stations. Hence, based on the serving cell (SC) SCH and pilot symbols, the power relation between these signals is estimated and the ratio applied when performing time synchronization to other cells (i.e. correlation the received sequence with the SCH from that particular NC) to estimate the pilot signal strength for the NB cell.

摘要翻译： 利用用户设备（UE）的同步信道（SCH）获取时间同步信息并执行小区搜索的方法和装置。 为了执行SCH检测，仅需要已知SCH信号和接收到的序列之间的相关性，因此在同步步骤中不涉及FFT。 通常，SCH和导频符号以对于所有基站相同的恒定功率发送。 因此，基于服务小区（SC）SCH和导频符号，估计这些信号之间的功率关系，并且当与其他小区进行时间同步时（即，将来自该特定NC的SCH的接收序列相关）估计 NB电池的导频信号强度。

公开(公告)号：US20070293157A1

公开(公告)日：2007-12-20

申请号：US11425324

申请日：2006-06-20

申请人： Jacobus Haartsen ,  Bengt Lindoff

发明人： Jacobus Haartsen ,  Bengt Lindoff

IPC分类号： H04B17/00 ,  H04B15/00 ,  H04B7/00

CPC分类号： H04W56/0045 ,  H04B7/2681

摘要： Timing alignment of User Equipment (UE) in a communications system is maintained by measuring an environmental condition of the UE, and determining a present magnitude of change metric representing a present magnitude of change of the environmental condition relative to a baseline value. The present magnitude of change metric is combined with a previous accumulation metric to obtain a present accumulation metric. If it is detected that the present accumulation metric satisfies a predetermined relationship with respect to the threshold value (e.g., is greater than the threshold value), then the UE transmits a timing advance request. An environmental condition can be, for example, a Doppler shift of a received signal, a Received Signal Strength Indication from a received signal, a temperature within the UE, a humidity within the UE, a supply voltage of the UE, or a symbol timing of a received signal.

摘要翻译： 用户设备（UE）在通信系统中的定时对齐是通过测量UE的环境状况来维持的，并且确定当前幅度的变化度量，其表示当前环境条件变化幅度相对于基准值。 将当前幅度的变化量度与先前的累积度量相结合以获得当前的累积度量。 如果检测到当前累积度量相对于阈值满足预定关系（例如，大于阈值），则UE发送​​定时提前请求。 环境条件可以是例如接收信号的多普勒频移，来自接收信号的接收信号强度指示，UE内的温度，UE内的湿度，UE的电源电压或符号定时 的接收信号。

公开(公告)号：US20070237261A1

公开(公告)日：2007-10-11

申请号：US11278878

申请日：2006-04-06

申请人： Bengt Lindoff ,  Johan Nilsson

发明人： Bengt Lindoff ,  Johan Nilsson

IPC分类号： H04L27/00

CPC分类号： H04B1/001 ,  H04B1/28 ,  H04B1/406 ,  H04W36/14 ,  H04W36/30 ,  H04W88/06

摘要： An apparatus, and a method performed by the apparatus, including a terminal with a front end receiver and analog filter (AF) operable throughout a bandwidth that is large enough to cover the total bandwidth used by different access technologies that the terminal supports. The terminal is operable to simultaneously extract from the output of a single front end receiver and AF the carrier frequencies and bandwidths of the different access technologies. This permits cell evaluation activity and an ongoing communication session to be conducted simultaneously with different access technologies on different bandwidths within the bandwidth of the analog filter and without interruption of the communication session.

摘要翻译： 一种由该装置执行的装置和方法，包括具有前端接收机和模拟滤波器（AF）的终端，该终端可在整个带宽内操作，该带宽足够大以覆盖终端支持的不同接入技术所使用的总带宽。 该终端可操作以从单个前端接收器的输出和AF同时提取不同接入技术的载波频率和带宽。 这允许小区评估活动并且持续的通信会话与模拟滤波器的带宽内的不同带宽上的不同接入技术同时进行，并且不中断通信会话。