公开(公告)号：US08797965B2

公开(公告)日：2014-08-05

申请号：US13583935

申请日：2011-03-18

申请人： Peter Alriksson ,  Joakim Axmon

发明人： Peter Alriksson ,  Joakim Axmon

IPC分类号： H04Q7/00 ,  H04Q7/24

CPC分类号： H03G3/3052 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/003 ,  H04W76/28

摘要： A technique for performing Automatic Gain Control (AGC) in a multi-carrier communication system in which transmission gaps are scheduled on a serving carrier to enable temporary tuning to another carrier by a served device is described. A method embodiment of this technique comprises: performing a first AGC procedure in relation to a first signal received on a first carrier during a first transmission gap; determining an AGC configuration for a second procedure based on at least one of channel conditions in relation to the first carrier and a lapsed time since the first transmission gap; and determining if the second AGC procedure can be skipped.

摘要翻译： 描述了一种用于在多载波通信系统中执行自动增益控制（AGC）的技术，其中在服务载波上调度传输间隙以允许被服务设备临时调谐到另一个载波。 该技术的方法实施例包括：在第一传输间隙期间相对于在第一载波上接收的第一信号执行第一AGC过程; 基于与所述第一载波相关的信道条件和从所述第一传输间隙起经过的时间中的至少一个来确定用于第二过程的AGC配置; 以及确定是否可以跳过第二AGC程序。

公开(公告)号：US20130143556A1

公开(公告)日：2013-06-06

申请号：US13699179

申请日：2011-05-13

申请人： Joakim Axmon ,  Niklas Andgart ,  Srinivas Badagandi ,  Oliver Klein ,  Dietmar Lipka

发明人： Joakim Axmon ,  Niklas Andgart ,  Srinivas Badagandi ,  Oliver Klein ,  Dietmar Lipka

IPC分类号： H04W48/16

CPC分类号： H04W48/16 ,  H04J11/0073 ,  H04J11/0076 ,  H04J11/0086 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2675

摘要： A technique for cell signature determination in a cellular communication network is provided. A method implementation of this technique comprises the steps of providing a set of hypothesis signals, each hypothesis signal including a signature hypothesis, receiving a composite signal including a first signal portion carrying a first signature from a first cell and a second signal portion carrying a second signature from a second cell, wherein the first signal portion and the second signal portion overlap at least partially in time, and obtaining a correlation result by correlating the composite signal with each hypothesis signal. After the first signature has been determined, a set of phantom signatures associated with the first signature is provided. The phantom signatures represent artifacts from the first signal portion in the correlation result. Finally, the second signature is determined based on the correlation result taking into account the set of phantom signatures associated with the first signature.

摘要翻译： 提供了一种在蜂窝通信网络中进行小区签名确定的技术。 该技术的方法实现包括以下步骤：提供一组假设信号，每个假设信号包括签名假设，接收包括携带来自第一小区的第一签名的第一信号部分和携带第二信号的第二信号部分的复合信号 签名，其中所述第一信号部分和所述第二信号部分至少部分地在时间上重叠，并且通过将所述复合信号与每个假设信号相关来获得相关结果。 在确定了第一签名之后，提供了与第一签名相关联的一组幻影签名。 幻影签名代表相关结果中来自第一信号部分的伪影。 最后，基于与第一个签名相关联的一组幻影签名的相关结果来确定第二个签名。

公开(公告)号：US20130077508A1

公开(公告)日：2013-03-28

申请号：US13522807

申请日：2012-05-22

申请人： Joakim Axmon ,  Muhammad Kazmi ,  Bengt Lindoff

发明人： Joakim Axmon ,  Muhammad Kazmi ,  Bengt Lindoff

IPC分类号： H04W24/00

CPC分类号： H04W24/10 ,  H04L27/26 ,  H04W16/14 ,  H04W24/00 ,  H04W36/0094 ,  H04W48/16 ,  H04W72/042 ,  H04W72/0453

摘要： One aspect of the present invention is method for signal quality measurement that provides significant improvements in accuracy, at least in certain scenarios where conventional approaches to such measurements are vulnerable to inaccuracies. Non-limiting example scenarios include instances where a communication network uses downlink carriers in neighboring cells with overlapping frequencies but with different bandwidths and/or center frequencies. In such cases, there may be uneven interference across the carrier bandwidth, e.g., arising from neighboring carriers operating at different center frequencies and/or at different bandwidths. Thus, making the signal quality measurement for a given carrier depend on a combination of measurements taken at different frequency regions of the carrier provides a clearer, more accurate picture of the interference or loading conditions bearing on that carrier.

公开(公告)号：US09992695B2

公开(公告)日：2018-06-05

申请号：US14124907

申请日：2012-01-19

申请人： Joakim Axmon ,  Muhammad Kazmi ,  Iana Siomina

发明人： Joakim Axmon ,  Muhammad Kazmi ,  Iana Siomina

IPC分类号： H04W24/08 ,  H04W24/10 ,  H04W48/16

CPC分类号： H04W24/08 ,  H04W24/10 ,  H04W48/16

摘要： Embodiments herein relate to a user equipment, UE, configured to performing measurements in a wireless communication network. The UE acquires system information, SI, of a cell during autonomous gaps, and also performs at least one non-SI measurement related to a serving and/or to one or more neighbor cells during a time period comprising the autonomous gaps. The embodiments also relate to a serving network node, a target network node and respective method therein.

公开(公告)号：US09031175B2

公开(公告)日：2015-05-12

申请号：US14112754

申请日：2012-04-13

申请人： Peter Alriksson ,  Joakim Axmon

发明人： Peter Alriksson ,  Joakim Axmon

IPC分类号： H03G3/20 ,  H03G3/30

CPC分类号： H03G3/20 ,  H03G3/3073 ,  H03G3/3078 ,  H04B17/309 ,  H04B17/318 ,  H04B17/327 ,  H04B17/382

摘要： A method of performing Automatic Gain Control, AGC, in a receiver of a device is provided. The device is served on a serving carrier of a multi-carrier communication network. Measurement gaps are scheduled on the serving carrier for inter-carrier measurements on a non-serving carrier. The method comprises the step of determining a first time interval, in which a predefined signal portion is transmitted on the non-serving carrier; the step of estimating, for the first time interval, received signal power on the non-serving carrier; the step of computing a receiver gain based on the estimate signal power; the step of performing, over a second time interval, an inter-carrier measurement on the non-serving carrier; and the step of applying the receiver gain to the receiver after the second time interval.

摘要翻译： 提供了一种在设备的接收机中执行自动增益控制（AGC）的方法。 该装置在多载波通信网络的服务载体上服务。 测量间隙被调度在服务载波上用于非服务载波上的载波间测量。 该方法包括确定第一时间间隔的步骤，其中在非服务载波上发送预定信号部分; 对于第一时间间隔估计非服务载波上的接收信号功率的步骤; 基于估计信号功率计算接收机增益的步骤; 在第二时间间隔上对非服务载波执行载波间测量的步骤; 以及在第二时间间隔之后将接收机增益应用于接收机的步骤。

公开(公告)号：US08848638B2

公开(公告)日：2014-09-30

申请号：US13398786

申请日：2012-02-16

申请人： Joakim Axmon ,  Erik Eriksson ,  Bengt Lindoff ,  Anders Wallén ,  Leif Wilhelmsson

发明人： Joakim Axmon ,  Erik Eriksson ,  Bengt Lindoff ,  Anders Wallén ,  Leif Wilhelmsson

IPC分类号： H04Q7/00 ,  H04L5/00 ,  H04W48/16 ,  H04W48/12

CPC分类号： H04W72/0493 ,  H04L5/00 ,  H04L5/0053 ,  H04W48/12 ,  H04W48/16

摘要： A network node that serves a host cell in a cellular communication system transmits, at (a) first time interval(s), first control channel information on a control channel that extends over a first bandwidth of a radiofrequency spectrum. The first control channel communicates information necessary to enable a first type of communication device to receive data from the host cell. The first type of communication device can receive first bandwidth-wide signals. At (a) second time interval(s), second control channel information is transmitted on a second control channel of a first M-cell. The second control channel occupies a second bandwidth that is smaller than the first bandwidth. The second time interval(s) do(es) not coincide with any of the first time interval(s). A second type of communication device having reduced receive bandwidth capabilities compared to those of the first type of communication device is thereby made capable of being served by the node.

摘要翻译： 服务蜂窝通信系统中的主机小区的网络节点在（a）第一时间间隔处，在通过射频频谱的第一带宽延伸的控制信道上发送第一控制信道信息。 第一控制信道传送使得第一类型的通信设备能够从主机小区接收数据所需的信息。 第一类通信设备可以接收第一带宽信号。 在（a）第二时间间隔，在第一M单元的第二控制信道上发送第二控制信道信息。 第二控制信道占用小于第一带宽的第二带宽。 第二时间间隔（s）与第一时间间隔（s）中的任一个不一致。 与第一类型的通信设备相比，具有降低的接收带宽能力的第二类型的通信设备由此能够被节点服务。

公开(公告)号：US20140126380A1

公开(公告)日：2014-05-08

申请号：US13668890

申请日：2012-11-05

申请人： Muhammad Ali Kazmi ,  Farshid Ghasemzadeh ,  Joakim Axmon ,  Walter Gerhard Alois Müller ,  Christian Bergljung

发明人： Muhammad Ali Kazmi ,  Farshid Ghasemzadeh ,  Joakim Axmon ,  Walter Gerhard Alois Müller ,  Christian Bergljung

IPC分类号： H04W24/08

CPC分类号： H04W24/06 ,  H04W24/08 ,  H04W72/04

摘要： The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.

摘要翻译： 本发明涉及用于在OFDMA系统中测试移动终端的方法和装置，其中发送小区中的全部或部分可用下行链路无线电资源。 测试装置中的处理单元将一组连续的资源块分割成单独的连续部分。 资源块集合的第一连续部分被分配给第一类型的用户，并且资源块集合中的第二连续部分被分配给第二类型的用户。 测试设备中的发射机使用至少一个连续的资源块集合向第一类型和第二类型的用户发送测试信号。

公开(公告)号：US08504029B2

公开(公告)日：2013-08-06

申请号：US13193361

申请日：2011-07-28

申请人： Joakim Axmon ,  Ali Nader ,  Robert Wolfgang Klang

发明人： Joakim Axmon ,  Ali Nader ,  Robert Wolfgang Klang

IPC分类号： H04W36/00

CPC分类号： H04W48/16

摘要： A user equipment (UE) cell search involves tuning a demodulation frequency of the UE based on signals received from a first encountered cell and using a non-initial cell search procedure to continue searching for a cell that is qualified for camping on, wherein the non-initial cell search procedure relies on the demodulation frequency being within limits of accuracy that enable successful reception and decoding of received information. Prior to finding a qualified cell, information enabling a first discovered unqualified cell to again be found is saved. After a period of time during which the non-initial cell search procedure has been performed and before the UE's demodulation frequency is beyond acceptable limits of accuracy, the saved information is used to again tune the demodulation frequency based on reading signals from the first discovered unqualified cell. The UE then continues to perform the non-initial cell search procedure.

摘要翻译： 用户设备（UE）小区搜索涉及基于从第一遇到小区接收到的信号来调谐UE的解调频率，并且使用非初始小区搜索过程继续搜索适合露营的小区，其中， - 初始小区搜索过程依赖于解调频率在准确的限度内，能够成功地接收和解码所接收的信息。 在找到合格的单元之前，可以节省能够再次找到第一个发现的不合格单元格的信息。 在执行非初始小区搜索过程的一段时间之前，在UE的解调频率超出准确度的可接受限度之前，使用保存的信息，基于来自第一被发现的不合格的读取信号再次调谐解调频率 细胞。 然后，UE继续执行非初始小区搜索过程。

公开(公告)号：US20100226264A1

公开(公告)日：2010-09-09

申请号：US12399809

申请日：2009-03-06

申请人： Joakim Axmon ,  Bengt Lindoff

发明人： Joakim Axmon ,  Bengt Lindoff

IPC分类号： H04W16/24 ,  H04J1/16

CPC分类号： H04W48/16 ,  H04J11/0079 ,  H04J11/0086

摘要： A wireless communication receiver performs robust cell searching, excluding interference due to UL transmissions from other UE, by qualifying the output of a matched filter with a metric indicative of the momentary signal-to-noise ratio (SNR). The momentary SNR metric is derived over the same amount of samples as the length of the matched filter. By discarding filter outputs during low momentary SNR, synchronization interference from UL transmissions is avoided. The momentary SNR metric and filter outputs are efficiently calculated, with only a few states and operations, compared to a conventional tapped delay line filter implementation. A limited list of cell candidates is populated, with information on correlation, timing, cell identity within cell group, and SNR metric for the K strongest candidates with respect to the matched filter correlation values. This list is used for later cell search stages, where a secondary synchronization channel is decoded.

摘要翻译： 无线通信接收机通过用指示瞬时信噪比（SNR）的度量来限定匹配滤波器的输出，执行鲁棒小区搜索，排除由于来自其他UE的UL传输引起的干扰。 在与匹配滤波器的长度相同的采样量上导出瞬时SNR度量。 通过在低瞬时SNR期间丢弃滤波器输出，避免了来自UL传输的同步干扰。 与传统的抽头延迟线滤波器实现相比，具有仅几种状态和操作的瞬时SNR度量和滤波器输出被有效地计算。 填充有限的单元候选列表，其中关于匹配滤波器相关值的K个最强候选者的关联，定时，小区组内的小区标识以及SNR度量的信息。 该列表用于稍后的小区搜索阶段，其中辅助同步信道被解码。

公开(公告)号：US20090310492A1

公开(公告)日：2009-12-17

申请号：US12472430

申请日：2009-05-27

申请人： Muhammad Ali Kazmi ,  Joakim Axmon ,  Christian Bergljung ,  Farshid Ghasemzadeh ,  Walter Muller

发明人： Muhammad Ali Kazmi ,  Joakim Axmon ,  Christian Bergljung ,  Farshid Ghasemzadeh ,  Walter Muller

IPC分类号： H04L12/26 ,  H04B7/02 ,  H04W72/00

CPC分类号： H04W24/06 ,  H04B17/20 ,  H04L5/0007 ,  H04L5/003 ,  H04W72/00

摘要： The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits the resources used for transmission into contiguous unities in the frequency domain such that one or more of said unities comprise resources allocated to one or more mobile terminals under test, and at least one of said unities comprise resources allocated to virtual users.

摘要翻译： 本发明涉及用于在OFDMA系统中测试移动终端的方法和装置，其中发送小区中的全部或部分可用下行链路无线电资源。 测试设备中的处理单元将用于传输的资源分离成频域中的连续单位，使得所述单位中的一个或多个包括分配给被测试的一个或多个移动终端的资源，并且所述单位中的至少一个包括分配的资源 到虚拟用户。