公开(公告)号：US20150111504A1

公开(公告)日：2015-04-23

申请号：US14407429

申请日：2012-06-12

申请人： Chunhui Zhang ,  Fredrik Huss ,  Youping Su

发明人： Chunhui Zhang ,  Fredrik Huss ,  Youping Su

IPC分类号： H04W24/02

CPC分类号： H04W24/02 ,  H01Q1/246 ,  H01Q3/267 ,  H04B17/11 ,  H04B17/14

摘要： A Calibration Coupling Unit, CCU, and a method therein for enabling calibration of a Base Station are provided. The CCU comprises an Antenna Interface Standards Group, AISG, interface and the CCU is connected to the Base Station by means of radio branch feeder cables carrying uplink and downlink transmissions to/from the Base Station. The Base Station comprises a Radio Unit, RU, and a Base Band Unit, BBU, and the CCU is further connectable to an antenna array comprising antenna elements. The method in the CCU comprises receiving (110) at least one calibration signal from the RU on at least one radio branch feeder cable of the CCU; and converting (130) the calibration signal to a receiving frequency band of the RU. The method further comprises providing (140) the converted signal to the RU via at least one of the radio branch feeder cables, thereby enabling calibration of the Base Station.

摘要翻译： 提供校准耦合单元，CCU及其中用于使基站校准的方法。 CCU包括天线接口标准组，AISG接口，并且CCU通过向基站/从基站承载上行链路和下行链路传输的无线电分支馈线连接到基站。 基站包括无线电单元，RU和基带单元BBU，并且CCU还可连接到包括天线元件的天线阵列。 CCU中的方法包括在CCU的至少一个无线分支馈电电缆上从RU接收（110）至少一个校准信号; 并将校准信号转换（130）到RU的接收频带。 该方法还包括通过至少一个无线分支馈电电缆将经转换的信号提供（140）到RU，从而使得能够校准基站。

公开(公告)号：US08831034B2

公开(公告)日：2014-09-09

申请号：US12887704

申请日：2010-09-22

申请人： Tobias Tynderfeldt ,  Dirk Gerstenberger ,  Fredrik Huss ,  Daniel Larsson

发明人： Tobias Tynderfeldt ,  Dirk Gerstenberger ,  Fredrik Huss ,  Daniel Larsson

IPC分类号： H04J3/16

CPC分类号： H04W56/0045 ,  H04W56/0005

摘要： A solution for extending the cell range and in particular for a solution for handling timing alignment is presented herein. The solution comprises determining a distance between user equipment and a radio access network node. User equipment located at a distance related to a pre defined timing advance value is scheduled to handle uplink communication so as to arrive at a later time slot for reducing the risk of conflicting with other transmissions towards the access node.

摘要翻译： 本文介绍了用于扩展单元范围，特别是用于处理定时对准的解决方案的解决方案。 解决方案包括确定用户设备和无线电接入网络节点之间的距离。 调度位于与预定义的定时提前值相关的距离的用户设备来处理上行链路通信，以便到达稍后的时隙，以减少与向接入节点的其他传输冲突的风险。

公开(公告)号：US08774113B2

公开(公告)日：2014-07-08

申请号：US13381750

申请日：2009-09-21

申请人： Daniel Larsson ,  Tobias Tynderfeldt ,  Fredrik Huss

发明人： Daniel Larsson ,  Tobias Tynderfeldt ,  Fredrik Huss

IPC分类号： H04W72/04

CPC分类号： H04W74/008 ,  H04W74/0833

摘要： A method and apparatus for accessing a wireless communication system, and for processing random access attempts. A mobile communication device detects random-access information transmitted by a base station, transmits a random-access preamble to the base station according to the random-access information, and receives a random-access response from the base station. The random-access response includes at least an allocation of uplink resources to be used for the next step in the random access procedure. The mobile device also selects a reference signal sequence index from a pre-determined set of sequence indexes, and transmits a first message to the base station using the uplink resource allocation provided in the random-access response. The first message includes a device identifier and a first demodulation reference signal derived from a base reference sequence shifted according to the selected sequence index.

摘要翻译： 一种用于访问无线通信系统并用于处理随机接入尝试的方法和装置。 移动通信设备检测由基站发送的随机接入信息，根据随机接入信息向基站发送随机接入前导码，并从基站接收随机接入响应。 随机接入响应至少包括用于随机接入过程中的下一步骤的上行链路资源的分配。 移动设备还从预定的序列索引集合中选择参考信号序列索引，并且使用随机接入响应中提供的上行链路资源分配向基站发送第一消息。 第一消息包括从根据所选序列索引偏移的基本参考序列导出的设备标识符和第一解调参考信号。

公开(公告)号：US20130279559A1

公开(公告)日：2013-10-24

申请号：US13454919

申请日：2012-04-24

申请人： Michael Samuel Bebawy ,  Fredrik Huss ,  Yi-Pin Eric Wang

发明人： Michael Samuel Bebawy ,  Fredrik Huss ,  Yi-Pin Eric Wang

IPC分类号： H04B1/10 ,  H04L27/01 ,  H04L27/00

CPC分类号： H04L25/03012 ,  H04L1/005 ,  H04L25/03171 ,  H04L25/0328 ,  H04L27/38

摘要： In one aspect, the present invention improves Turbo equalization and/or soft interference cancellation processing in communication receivers by providing an efficient and accurate technique to compute the second moment of a received symbol, e.g., an interfering symbol, as a function of the expected bit values of only those bits in the symbol that are magnitude-controlling bits according to a defined modulation constellation. Advantageously, the expected bit values in at least one embodiment are computed using a LUT that maps bit LLRs to corresponding hyperbolic tangent function values. Further, the expected symbol value is computed as a linear function of terms comprising the expected bit values and the soft symbol variance is efficiently computed from the second moment and the expected symbol value squared. This simplified processing reduces receiver complexity, particularly in the context of modulation constellations having non-constant magnitudes, and thus saves power and/or improves design economics.

摘要翻译： 在一个方面，本发明通过提供有效和准确的技术来计算接收符号的第二时刻（例如干扰符号）来改善通信接收机中的Turbo均衡和/或软干扰消除处理，作为预期位的函数 根据定义的调制星座，只有符号中那些位是幅度控制位的值。 有利地，使用将位LLR映射到对应的双曲正切函数值的LUT来计算至少一个实施例中的预期位值。 此外，预期符号值被计算为包括预期位值的项的线性函数，并且从第二时刻有效地计算软符号方差，并且预期符号值平方。 这种简化的处理降低了接收机的复杂度，特别是在具有非恒定幅度的调制星座的上下文中，从而节省功率和/或提高了设计经济性。

公开(公告)号：US08489969B2

公开(公告)日：2013-07-16

申请号：US13526651

申请日：2012-06-19

申请人： Fredrik Huss

发明人： Fredrik Huss

IPC分类号： G06F11/00

CPC分类号： H03M13/3994 ,  H03M13/09 ,  H03M13/175 ,  H03M13/4123 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0073

摘要： The present invention relates to channel decoding and provides ways and means for improved channel decoding of data frames. The frame has been channel encoded and transmitted to a receiver. The frame includes a part with information that is unknown to the receiver and another part with information for which the receiver generates at least one data hypothesis predicting its information content. The receiver performs a hypothesis-based decoding of the received encoded frame, wherein the at least one data hypothesis is used to improve a probability of successful decoding. The invention may advantageously be used to improve decoding of frames containing short control messages with fill bits, e.g. acknowledgement messages.

摘要翻译： 本发明涉及信道解码，并且提供了改进数据帧的信道解码的方式和手段。 该帧已被信道编码并传输到接收机。 该帧包括具有接收器未知的信息的部分，另一部分具有信息，其中接收器生成至少一个预测其信息内容的数据假设。 接收机对接收到的编码帧执行基于假设的解码，其中使用至少一个数据假设来提高成功解码的概率。 本发明可以有利地用于改善包含具有填充比特的短控制消息的帧的解码，例如， 确认消息。

公开(公告)号：US20130065537A1

公开(公告)日：2013-03-14

申请号：US13229164

申请日：2011-09-09

申请人： Eliana YEPEZ ,  Jinliang HUANG ,  Edward MAH ,  Fredrik HUSS

发明人： Eliana YEPEZ ,  Jinliang HUANG ,  Edward MAH ,  Fredrik HUSS

IPC分类号： H04B17/00

CPC分类号： H04L25/0222 ,  H04L25/0224 ,  H04L27/2602

摘要： A method and system for selecting an algorithm for channel estimation in a wireless communication system are disclosed. According a parameter indicative of an accuracy of a channel estimation algorithm is determined. A selection between a first channel estimation algorithm and a second channel estimation algorithm is made based on the determined parameter.

摘要翻译： 公开了一种在无线通信系统中选择用于信道估计的算法的方法和系统。 根据指示信道估计算法的精度的参数被确定。 基于确定的参数进行第一信道估计算法和第二信道估计算法之间的选择。

公开(公告)号：US20120254706A1

公开(公告)日：2012-10-04

申请号：US13526651

申请日：2012-06-19

申请人： Fredrik HUSS

发明人： Fredrik HUSS

IPC分类号： H03M13/23 ,  H03M7/00 ,  G06F11/10 ,  H04W36/00 ,  H03M13/05

CPC分类号： H03M13/3994 ,  H03M13/09 ,  H03M13/175 ,  H03M13/4123 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0073

摘要： The present invention relates to channel decoding and provides ways and means for improved channel decoding of data frames. The frame has been channel encoded and transmitted to a receiver. The frame includes a part with information that is unknown to the receiver and another part with information for which the receiver generates at least one data hypothesis predicting its information content. The receiver performs a hypothesis-based decoding of the received encoded frame, wherein the at least one data hypothesis is used to improve a probability of successful decoding. The invention may advantageously be used to improve decoding of frames containing short control messages with fill bits, e.g. acknowledgement messages.

摘要翻译： 本发明涉及信道解码，并且提供了改进数据帧的信道解码的方式和手段。 该帧已被信道编码并传输到接收机。 该帧包括具有接收器未知的信息的部分，另一部分具有信息，其中接收器生成至少一个预测其信息内容的数据假设。 接收机对接收到的编码帧执行基于假设的解码，其中使用至少一个数据假设来提高成功解码的概率。 本发明可以有利地用于改善包含具有填充比特的短控制消息的帧的解码，例如， 确认消息。

公开(公告)号：US20110170514A1

公开(公告)日：2011-07-14

申请号：US13120359

申请日：2009-04-28

申请人： Erik Eriksson ,  Fredrik Huss ,  Daniel Larsson

发明人： Erik Eriksson ,  Fredrik Huss ,  Daniel Larsson

IPC分类号： H04W72/04

CPC分类号： H04W74/004 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04L1/0073 ,  H04L1/1664 ,  H04L1/1671 ,  H04L1/1819 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0096 ,  H04L25/03343 ,  H04L2001/125 ,  H04L2025/03802 ,  H04W72/06

摘要： A method and an arrangement (400, 600) in a first and second node, respectively, are provided. In a step (220), the first node (110) sends a plurality of resource units in a time period on a combined feedback and data channel. Said plurality of resource units comprises information about feedback data and user data. At least a minimum number of resource units are reserved for allocation by the user data.

摘要翻译： 提供了分别在第一和第二节点中的方法和装置（400,600）。 在步骤（220）中，第一节点（110）在组合的反馈和数据信道上在一段时间内发送多个资源单元。 所述多个资源单元包括关于反馈数据和用户数据的信息。 至少最少数量的资源单位被保留用于用户数据的分配。

公开(公告)号：US20100124936A1

公开(公告)日：2010-05-20

申请号：US12274808

申请日：2008-11-20

申请人： Ulf SKARBY ,  Erling FLOSER ,  Fredrik HUSS

发明人： Ulf SKARBY ,  Erling FLOSER ,  Fredrik HUSS

IPC分类号： H04W64/00 ,  H04W24/00

CPC分类号： H04W56/004 ,  H04W60/00 ,  H04W84/047

摘要： In one aspect, the invention provides a method for tracking a mobile terminal. In some embodiments, this method includes the following steps: receiving a signal transmitted from the mobile terminal; searching a primary search area for a signal associated with the mobile terminal; searching a secondary search area for a signal associated with the mobile terminal, wherein the secondary search area is larger than the primary search area; determining the strength of a signal associated with the mobile terminal that was found by searching the secondary search area; and determining whether the primary search area should be modified based on the determined strength of the signal that was found by searching the secondary search area.

摘要翻译： 一方面，本发明提供了一种跟踪移动终端的方法。 在一些实施例中，该方法包括以下步骤：接收从移动终端发送的信号; 搜索主搜索区域以获取与所述移动终端相关联的信号; 搜索辅助搜索区域以获取与所述移动终端相关联的信号，其中所述辅助搜索区域大于所述主搜索区域; 确定通过搜索辅助搜索区域找到的与移动终端相关联的信号的强度; 以及基于通过搜索辅助搜索区域确定的信号的确定的强度来确定是否应该修改主搜索区域。

公开(公告)号：US20090239585A1

公开(公告)日：2009-09-24

申请号：US12302999

申请日：2006-06-01

申请人： Fredrik Huss

发明人： Fredrik Huss

IPC分类号： H04L27/06 ,  H04M1/00

CPC分类号： H03M13/3994 ,  H03M13/09 ,  H03M13/175 ,  H03M13/4123 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0073

摘要： The present invention relates to channel decoding and provides ways and means for improved channel decoding of data frames. The frame has been channel encoded and transmitted to a receiver (3a). The frame includes a part (51, 53) with information that is unknown to the receiver and another part (54, 55) with information for which the receiver generates at least one data hypothesis predicting its information content. The receiver performs a hypothesis-based decoding (149) of the received encoded frame, wherein the at least one data hypothesis is used to improve a probability of successful decoding. The invention may advantageously be used to improve decoding of frames containing short control messages with fill bits, e.g. acknowledgement messages (17).

摘要翻译： 本发明涉及信道解码，并且提供了改进数据帧的信道解码的方式和手段。 该帧已被信道编码并被发送到接收机（3a）。 帧包括具有对于接收机未知的信息的部分（51,53）和具有信息的另一部分（54,55），其中接收器生成预测其信息内容的至少一个数据假设。 接收机执行接收的编码帧的基于假设的解码（149），其中使用至少一个数据假设来提高成功解码的概率。 本发明可以有利地用于改善包含具有填充比特的短控制消息的帧的解码，例如， 确认消息（17）。