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1. 发明申请

WO2013189540A1 SIMPLIFIED PRACH PROCEDURE USING SPECULATIVE RANDOM ACCESS RESPONSE 审中-公开
标题翻译：使用频谱随机访问响应简化的PRACH程序
公开(公告)号：WO2013189540A1
公开(公告)日：2013-12-27
申请号：PCT/EP2012/061932
申请日：2012-06-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , OLSSON, Thomas , SAHLIN, Henrik , BRAUER, Peter , CARLSSON, Roland , ENGDAL, David , CARLSSON, Anders , SVENSSON, Jim
发明人： OLSSON, Thomas , SAHLIN, Henrik , BRAUER, Peter , CARLSSON, Roland , ENGDAL, David , CARLSSON, Anders , SVENSSON, Jim
IPC分类号： H04W74/00
CPC分类号： H04W74/0833 , H04W72/04 , H04W74/002
摘要： The present invention relates to method and arrangement in cellular mobile communication systems, in particular for handling of a physical random access channel for example in a Long Term Evolution communication network. By sending to at least one user equipment (101), UE, in a communication network cell (105) an un-solicited speculative random access response, RAR, message comprising information relating to at least one of pre-amble identifier, allocated UE identifier, and uplink resource allocation data for L2/L3 message, it is possible to reduce the complexity of the access node (102), e.g. an eNodeB.
摘要翻译：本发明涉及蜂窝移动通信系统中的方法和装置，特别是用于处理例如长期演进通信网络中的物理随机接入信道。通过向通信网络小区（105）中的至少一个用户设备（101）UE发送未请求的推测性随机接入响应RAR消息，其包括与前同步标识符，分配的UE标识符和用于L2 / L3消息的上行链路资源分配数据，可以降低接入节点（102）的复杂度，例如一个eNodeB。

2. 发明申请

WO2013004283A8 ENHANCED USE OF FREQUENCY SPECTRUM IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：在无线通信网络中增强频率频谱的使用
公开(公告)号：WO2013004283A8
公开(公告)日：2013-12-27
申请号：PCT/EP2011061176
申请日：2011-07-04
申请人： ERICSSON TELEFON AB L M , SAHLIN HENRIK , PERSSON ANDERS , ENGDAL DAVID , WANG YI-PIN ERIC
发明人： SAHLIN HENRIK , PERSSON ANDERS , ENGDAL DAVID , WANG YI-PIN ERIC
IPC分类号： H04W24/10 , H04L5/14 , H04W72/12
CPC分类号： H04W24/08 , H04L1/0026 , H04L1/0027 , H04W24/10 , H04W72/1226
摘要： The present invention relates to a user terminal (1) arranged for communication with at least one node (2) in a wireless communication network (3). The user terminal (1) is arranged to measure received signal characteristics from at least one other user terminal (4, 5) when it is transmitting signals (6, 7; 8, 9). The measured received signal characteristics are comprised in measurement data. The user terminal (1) is arranged to transfer the measurement data to said node (2) at certain times. The present invention also relates to a node (2) that is arranged to schedule transmission and reception of signals such that each user terminal (1, 4, 5) that communicates via the node (2) either transmits or receives signals to/from the node (2) at a first frequency interval. The node (2) is arranged to transmit and receive signals simultaneously at the first frequency interval. The present invention also relates to a method.
摘要翻译：本发明涉及一种用于在无线通信网络（3）中与至少一个节点（2）通信的用户终端（1）。用户终端（1）被布置成在发送信号（6,7,8,9）时测量来自至少一个其他用户终端（4,5）的接收信号特性。测量的接收信号特性包含在测量数据中。用户终端（1）被布置成在某些时间将测量数据传送到所述节点（2）。本发明还涉及一种节点（2），其被布置成调度信号的发送和接收，使得经由节点（2）进行通信的每个用户终端（1,4,5）向/从所述节点节点（2）以第一频率间隔。节点（2）被布置成以第一频率间隔同时发送和接收信号。本发明还涉及一种方法。

3. 发明申请

WO2011035810A1 CALCULATION OF SOFT VALUES FOR UPLINK COMMUNICATION 审中-公开
标题翻译：计算上传通信软值
公开(公告)号：WO2011035810A1
公开(公告)日：2011-03-31
申请号：PCT/EP2009/062447
申请日：2009-09-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , SAHLIN, Henrik
发明人： SAHLIN, Henrik
IPC分类号： H04L25/03
CPC分类号： H04L25/03197 , H04L25/03216 , H04L25/03318
摘要： The present invention relates to a node (1) in a wireless communication network (2), the node (1) comprising a receiver (3) arranged for receiving at least two signals streams comprising bit sequences, and for evaluating which bit sequence that is most likely to have been received for a certain sent symbol for each signal stream. The receiver is also arranged for calculating metrics (34, 35, 36, 37, 38, 39, 40, 41; 42, 43, 44, 45, 46, 47, 48, 49) indicative of which bit sequence that initially is most likely to correspond to a certain sent symbol, the metrics (34, 35, 36, 37, 38, 39, 40, 41; 42, 43, 44, 45, 46, 47, 48, 49) further being used a soft value calculation where the receiver (3) is arranged for addition of metric data for a certain signal stream corresponding to an added bit sequence (f) for each case where the available metrics (42, 43, 44, 45, 46, 47, 48, 49) are incomplete for performing the estimation The missing bit is inserted in the added bit sequence in the place where it is missing, and is chosen such that it also corresponds to a symbol (51b) with the shortest Euclidian distance to the symbol (14b) with the said corresponding bit sequence (14; i, f, c) that initially is indicated to be most likely to correspond to a certain sent symbol.
摘要翻译：本发明涉及一种无线通信网络（2）中的节点（1），所述节点（1）包括接收机（3），所述接收机（3）被安排用于接收包含比特序列的至少两个信号流，并且用于评估哪个比特序列是对于每个信号流最有可能被接收到某个发送的符号。接收机还被安排用于计算指示最初最多的位序列的度量（34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49）（34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49）进一步被用于一个软值计算其中接收机（3）被安排用于对于与可用度量（42,43,44,45,46,47,48,48,48,46,47,48,48,48,48,48,48,48,48,48,48,48,48,48,40,40,40,40,40,40,40,40,46,40,41,41,41,41,41,41,41,41,41,41,41 49）对于执行估计是不完整的。丢失的比特被插入到丢失的位置中的添加的比特序列中，并且被选择为使得它也对应于具有与符号（14b）的欧几里德距离最短的符号（51b））与最初被指示为最可能对应于某个发送符号的所述相应位序列（14; i，f，c）。

4. 发明申请

WO2009124558A1 A METHOD OF AND A RADIO TRANSMISSION SYSTEM AND RADIO ACCESS EQUIPMENT FOR CELLULAR WIRELESS RADIO TRANSMISSION 审中-公开
标题翻译：无线电无线传输方法和无线电传输系统和无线电接入设备
公开(公告)号：WO2009124558A1
公开(公告)日：2009-10-15
申请号：PCT/EP2008/002755
申请日：2008-04-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , SAHLIN, Henrik , LINDGREN, UIf , ZANGI, Kambiz
发明人： SAHLIN, Henrik , LINDGREN, UIf , ZANGI, Kambiz
IPC分类号： H04W88/08
CPC分类号： H04L5/0037 , H04L5/0023 , H04W56/0005 , H04W88/085 , H04W92/10
摘要： Radio transmission in an Orthogonal Frequency Division Multiplex, OFDM, based cellular wireless radio transmission system (1 ), wherein radio access equipment (2) of the system connects to multiple geographically spread radio antennas (3, 4, 5) of a Distributed Antenna System, DAS, for transmitting to and receiving radio signals from user equipment (6, 7, 8, 9, 10). Transmit timings for radio transmission between the user equipment (6, 7, 8, 9, 10) and the antennas (3, 4, 5) of the DAS are established. The radio transmission is scheduled based on the established transmit timings.
摘要翻译：在正交频分复用OFDM基于蜂窝无线电传输系统（1）中的无线电传输，其中系统的无线电接入设备（2）连接到分布式天线系统的多个地理上扩展的无线电天线（3,4,5） DAS，用于发送和接收来自用户设备（6,7,8,9,10）的无线电信号。建立用户设备（6,7,8,9,10）与DAS的天线（3,4,5）之间的无线电传输的发送定时。基于建立的发送定时来调度无线电传输。

5. 发明申请

WO2008025373A1 DETECTION OF ACCESS BURSTS IN A RANDOM ACCESS CHANNEL 审中-公开
标题翻译：在随机访问通道中检测访问冲突
公开(公告)号：WO2008025373A1
公开(公告)日：2008-03-06
申请号：PCT/EP2006/012507
申请日：2006-12-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , BALDEMAIR, Robert , SAHLIN, Henrik
发明人： BALDEMAIR, Robert , SAHLIN, Henrik
IPC分类号： H04Q7/32
CPC分类号： H04W24/00 , H04W74/08 , H04W88/08
摘要： A technique for detecting one or more access bursts (112) in a random access channel (110) is described. Each access burst includes a transmission preamble, the transmission preamble being a member of a preamble set including sequences of preamble symbols that can be obtained by cyclically shifting a basic preamble sequence. A detector (118, 120) in a radio base station (108) determines correlation information indicative of a correlation of a single correlation preamble with each of the one or more received transmission preambles, wherein the correlation preamble is a member of the preamble set. The one or more access bursts are detected based on the correlation information.
摘要翻译：描述了用于检测随机接入信道（110）中的一个或多个接入脉冲串（112）的技术。每个接入脉冲串包括传输前同步码，所述发射前导码是包括可以通过循环移位基本前同步码序列而获得的前导符号序列的前同步码集的成员。无线电基站（108）中的检测器（118,120）确定指示单个相关前同步码与一个或多个接收到的传输前导码中的每一个的相关性的相关信息，其中相关前同步码是前同步码组的成员。基于相关信息来检测一个或多个访问突发。

6. 发明申请

WO2009151358A8 METHODS AND ARRANGEMENTS IN A WIRELESS COMMUNICATION SYSTEM FOR PRODUCING SIGNAL STRUCTURE WITH CYCLIC PREFIX 审中-公开
标题翻译：用于生成具有循环前缀的信号结构的无线通信系统中的方法和安排
公开(公告)号：WO2009151358A8
公开(公告)日：2010-01-28
申请号：PCT/SE2008050712
申请日：2008-06-13
申请人： ERICSSON TELEFON AB L M , LARSSON PETER , SAHLIN HENRIK
发明人： LARSSON PETER , SAHLIN HENRIK
IPC分类号： H04L27/26
CPC分类号： H04L27/2607 , H04L1/0079 , H04L27/2662
摘要： The present invention relates to methods and arrangements in a wireless communication system supporting cyclic-prefix insertion, using a symbol sequence comprising a number of samples for transmission over a radio channel that enables the handling of very large signal delay spreads. The symbol sequence is built up by a first symbol with CP and a second symbol with CP. The second symbol is a copy of the first symbol with the samples shifted in a way that makes the two adjacent symbols with CP match in regards to the sample order. The symbol sequence may also comprise a third symbol with CP or more, where the third symbol is a copy of the second symbol and with the samples shifted in analogy with the symbol shift described above. The resulting symbol sequence will thus appear as an extended continuous symbol thanks to the precise cyclic shift that matches adjacent symbols. This allows the receiver to place its FFT window anywhere during the extended symbol, e.g. at the end of the symbol sequence thus making it possible to handle a delay spread longer than the CP duration. It also allows to place e.g. two FFT windows and to combine the extracted signal into one SNR improved signal, while still handling a longer delay spread.
摘要翻译：本发明涉及一种支持循环前缀插入的无线通信系统中的方法和装置，其使用包括多个样本的符号序列，以在能够处理非常大的信号延迟扩展的无线电信道上进行传输。符号序列由具有CP的第一个符号和带有CP的第二个符号构成。第二个符号是第一个符号的副本，其中样本以使得具有CP的两个相邻符号与样本顺序匹配的方式移位。符号序列还可以包括具有CP或更多的第三符号，其中第三符号是第二符号的副本，并且样本类似于上述符号移位移位。因此，由于符合相邻符号的精确循环移位，所得到的符号序列因此将显示为扩展的连续符号。这允许接收机将其FFT窗口放置在扩展符号期间的任何地方。因此在符号序列结束时，可以处理长于CP持续时间的延迟扩展。它也允许放置例如。两个FFT窗口，并将提取的信号组合成一个SNR改进的信号，同时仍处理更长的延迟扩展。

7. 发明申请

WO2009142563A1 METHOD FOR MOVING QUANTIZATION NOISE INTRODUCED IN FIXED-POINT CALCULATION OF FAST FOURIER TRANSFORMS 审中-公开
标题翻译：用于移动量化噪声的方法在快速傅立叶变换的固定点计算中引入
公开(公告)号：WO2009142563A1
公开(公告)日：2009-11-26
申请号：PCT/SE2008/050610
申请日：2008-05-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , SKYMAN, Anders , SAHLIN, Henrik
发明人： SKYMAN, Anders , SAHLIN, Henrik
IPC分类号： H04L27/26 , G06F17/14 , G06F7/76
CPC分类号： H04L27/2628 , G06F17/142 , H04L27/2607
摘要： The invention discloses a method in an electronic communication device for processing a digital signal within a wireless communication network in order to transform the digital signal from a first domain representation to a second domain representation in a communication device, comprising the steps of: transforming (86, 98) the signal from the first domain to the second domain resulting in a signal of a first order of values with quantization noise in at least one area of the second domain, and performing (88, 100) a cyclic shift on the transformed signal to move the quantization noise in the second domain, resulting in a first shifted signal.
摘要翻译：本发明公开了一种电子通信设备中用于处理无线通信网络内的数字信号以便将数字信号从第一域表示转换成通信设备中的第二域表示的方法，包括以下步骤：转换（86 ，98）从第一域到第二域的信号，产生具有第二域的至少一个区域中的量化噪声的具有一阶值的值的信号，并且对变换信号执行（88,100）循环移位以移动第二域中的量化噪声，产生第一移位信号。

8. 发明申请

WO2009051525A1 PRE-CODING FOR FREQUENCY SELECTIVE RADIO COMMUNICATION CHANNELS 审中-公开
标题翻译：频率选择无线电通信信道的预编码
公开(公告)号：WO2009051525A1
公开(公告)日：2009-04-23
申请号：PCT/SE2007/000902
申请日：2007-10-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LINDGREN, Ulf , KRASNY, Leonid , SAHLIN, Henrik
发明人： LINDGREN, Ulf , KRASNY, Leonid , SAHLIN, Henrik
IPC分类号： H04L25/03
CPC分类号： H04L25/03343 , H04B7/0617 , H04B7/0626 , H04L2025/03426 , H04L2025/03802
摘要： The present invention relates to a method for processing signals to be transmitted in a MIMO system (10; 28) from a transmitter A, B; C having at least two transmitting antennas (11-12, 13-14; 29-31) to a receiver A, B; D having at least two receiving antennas (11- 12, 13-14; 32-34) on a frequency selective communication channel. The method comprises estimating elements of a channel matrix H(Q -1 ) based on time delays and complex valued coefficients associated with the communication channel to provide an estimated frequency variation function of each element of the channel matrix, and pre-coding the signals to be transmitted based on the estimated frequency variation function for each element. The invention also relates to a MIMO system; and a transmitter and a receiver for use in a MIMO system.
摘要翻译：本发明涉及一种处理从发射机A，B发送到MIMO系统（10; 28）的信号的方法; C具有至少两个发射天线（11-12,13-14; 29-31）到接收机A，B; D在频率选择性通信信道上具有至少两个接收天线（11-12,13-14; 32-34）。该方法包括基于时间延迟来估计信道矩阵H（Q-1）的元素和与通信信道相关联的复值系数，以提供信道矩阵的每个元素的估计的频率变化函数，并将该信号预编码为基于每个元素的估计频率变化函数来发送。本发明还涉及MIMO系统; 以及用于MIMO系统的发射机和接收机。

9. 发明申请

WO2013191597A1 PREFILTERING IN MIMO RECEIVER 审中-公开
标题翻译： MIMO接收机中的预处理
公开(公告)号：WO2013191597A1
公开(公告)日：2013-12-27
申请号：PCT/SE2012/050670
申请日：2012-06-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SAHLIN, Henrik , LOPEZ, Miguel
发明人： SAHLIN, Henrik , LOPEZ, Miguel
IPC分类号： H04B7/04 , H04B7/08
CPC分类号： H04B1/40 , H04B7/0413 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/0246 , H04L25/03 , H04L25/03891 , H04L2025/03426
摘要： Data signals transmitted by a plurality of transmitting antennas over a radio channel are demodulated. The method comprises receiving (202) on a plurality of receiving antennas, a data signal and a reference signal, the contents of the reference signal being known a priori to the receiver. The contents of the reference signal are used for calculating (204) an estimated polynomial channel matrix. A polynomial pre-filter matrix is calculated (206, 208) by a decomposition of the estimated polynomial channel matrix into a product of a paraunitary polynomial matrix and an upper triangular polynomial matrix with minimum phase filters on its main diagonal, where the polynomial pre-filter matrix is obtained by calculating the paraconjugate of the paraunitary polynomial matrix. The received data signal is demodulated (212) where the received data signal is multiplied with the calculated polynomial pre-filter matrix.
摘要翻译：由无线电信道上的多个发送天线发送的数据信号被解调。该方法包括在多个接收天线上接收（202）数据信号和参考信号，参考信号的内容先于接收机已知。参考信号的内容用于计算（204）估计的多项式信道矩阵。通过将估计的多项式信道矩阵分解为在其主对角线上具有最小相位滤波器的超幺多项式矩阵和上三角多项式矩阵的乘积来计算多项式预滤波器矩阵（206,208），其中多项式预滤波器矩阵滤波矩阵是通过计算超幺正多项式矩阵的附属函数得到的。接收的数据信号被解调（212），其中所接收的数据信号与计算的多项式预滤波器矩阵相乘。

10. 发明申请

WO2012099511A1 RECEIVING NODE AND METHOD FOR DETERMINING CHANNEL ESTIMATE 审中-公开
标题翻译：接收节点和确定信道估计的方法
公开(公告)号：WO2012099511A1
公开(公告)日：2012-07-26
申请号：PCT/SE2011/050061
申请日：2011-01-20
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , SAHLIN, Henrik , PERSSON, Anders
发明人： SAHLIN, Henrik , PERSSON, Anders
IPC分类号： H04L25/02
CPC分类号： H04L25/022 , H04L1/0036 , H04L25/0204 , H04L25/023 , H04L25/0232 , H04L27/2647
摘要： The present invention relates to a receiving node, and to a related method for determining a channel estimate of a radio channel in a receiving node of a radio communication system. The method comprises calculating (10) a matched filter channel estimate based on a known reference signal and a received reference signal in a frequency domain, transforming (20) the matched filter channel estimate into an over-sampled transform domain channel estimate, applying (30) a window to the over-sampled transform domain channel estimate to achieve a windowed transform domain channel estimate, transforming (40) the windowed transform domain channel estimate into a frequency domain channel estimate, and compensating (50) for a bias in the over-sampled frequency domain channel estimate based on a digital sine function.
摘要翻译：本发明涉及一种接收节点，以及一种用于确定无线电通信系统的接收节点中的无线电信道的信道估计的相关方法。该方法包括基于已知参考信号和频域中的接收参考信号计算（10）匹配滤波器信道估计，将（20）匹配滤波器信道估计转换为过采样变换域信道估计，应用（30 ）窗口到过采样的变换域信道估计，以实现窗口化的变换域信道估计，将窗口化的变换域信道估计转换（40）到频域信道估计中，并且补偿（50）基于数字正弦函数的采样频域信道估计。

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