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1. 发明专利

SE9703212D0 未知
公开(公告)号：SE9703212D0
公开(公告)日：1997-09-05
申请号：SE9703212
申请日：1997-09-05
申请人： ULF LINDGREN , HOLGER BROMAN , HENRIK SAHLIN
发明人： LINDGREN ULF , BROMAN HOLGER , SAHLIN HENRIK
IPC分类号： H04R3/00 , H03H21/00 , H03H
摘要： Method for separating at least two signals from a mixture of signals, in which method the number of different mixtures is at least as great as the number of signals to be separated, the method comprising a modified criterion based on a criterion, which is to be minimised for estimating parameters in a separation structure and a regularising amendment, characterised in that the amendment comprises a first vector with the parameters to be estimated, a second vector with possible information concerning real parameters and a weight matrix, and a product of a difference between said first and second vector, the weight matrix and a conjugated and transposed difference between said first and second vector.

2. 发明授权

US09628232B2 Method of and a radio transmission system and radio access equipment for cellular wireless radio transmission 有权
公开(公告)号：US09628232B2
公开(公告)日：2017-04-18
申请号：US12936301
申请日：2008-04-07
申请人： Henrik Sahlin , Ulf Lindgren , Kambiz Zangi
发明人： Henrik Sahlin , Ulf Lindgren , Kambiz Zangi
IPC分类号： H04L5/06 , H04L5/26 , H04W56/00 , H04W88/08 , H04W92/10 , H04L5/00
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, wherein radio access equipment of the system connects to multiple geographically spread radio antennas of a Distributed Antenna System, DAS, for transmitting to and receiving radio signals from user equipment. Transmit timings for radio transmission between the user equipment and the antennas of the DAS are established. The radio transmission is scheduled based on the established transmit timings.

3. 发明授权

US09113360B2 Method and device for SINR estimation 有权
标题翻译： SINR估计的方法和装置
公开(公告)号：US09113360B2
公开(公告)日：2015-08-18
申请号：US13704666
申请日：2010-06-16
申请人： Henrik Sahlin , Roland Carlsson , Aare Mallo
发明人： Henrik Sahlin , Roland Carlsson , Aare Mallo
IPC分类号： H04W24/06 , H04B17/336 , H04B17/373 , H04B17/382
CPC分类号： H04W24/06 , H04B17/336 , H04B17/373 , H04B17/382
摘要： A method (200) for a transceiver in a mobile system for determining the SINR for signals from at least two User Equipments during a future time interval, comprising arranging the transceiver to receive (205) transmissions from User Equipments in the mobile system on one radio channel per User Equipment, choosing (210) the at least two User Equipments from User Equipments which have data to transmit to the transceiver. The method comprises determining (220) the radio channel characteristics during the future time interval for the at least two User Equipments, emulating (230) at least one receiver type available to the transceiver during said future time interval in order to determine a post demodulation channel for the at least two User Equipments, in which emulation the determined radio channel characteristics, and determining (235) an SINR in the transceiver for the at least two User Equipments using the post demodulation channel.
摘要翻译：一种用于在未来时间间隔期间用于确定来自至少两个用户设备的信号的SINR的用于移动系统中的收发器的方法（200），包括：设置所述收发器以在一个无线电中接收（205）来自所述移动系统中的用户设备的传输每个用户设备的通道，从用户设备中选择（210）至少两个用户设备，其中具有要发送到收发器的数据。该方法包括确定（220）在至少两个用户设备的未来时间间隔期间的无线电信道特性，在所述未来时间间隔期间模拟（230）可用于收发器的至少一个接收机类型，以便确定后解调信道对于至少两个用户设备，其中仿真确定的无线电信道特性，以及使用后解调信道确定（235）用于所述至少两个用户设备的收发器中的SINR。

4. 发明申请

US20140160968A1 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谱使用
公开(公告)号：US20140160968A1
公开(公告)日：2014-06-12
申请号：US14130596
申请日：2011-07-04
申请人： Henrik Sahlin , David Engdal , Anders Persson , Yi-Pin Eric Wang
发明人： Henrik Sahlin , David Engdal , Anders Persson , Yi-Pin Eric Wang
IPC分类号： H04W24/08 , H04W24/10
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。

5. 发明申请

US20130088950A1 METHOD AND DEVICE FOR SINR ESTIMATION 有权
标题翻译： SINR估计的方法和装置
公开(公告)号：US20130088950A1
公开(公告)日：2013-04-11
申请号：US13704666
申请日：2010-06-16
申请人： Henrik Sahlin , Roland Carlsson , Aare Mallo
发明人： Henrik Sahlin , Roland Carlsson , Aare Mallo
IPC分类号： H04W24/06
CPC分类号： H04W24/06 , H04B17/336 , H04B17/373 , H04B17/382
摘要： A method (200) for a transceiver in a mobile system for determining the SINR for signals from at least two User Equipments during a future time interval, comprising arranging the transceiver to receive (205) transmissions from User Equipments in the mobile system on one radio channel per User Equipment, choosing (210) the at least two User Equipments from User Equipments which have data to transmit to the transceiver. The method comprises determining (220) the radio channel characteristics during the future time interval for the at least two User Equipments,emulating (230) at least one receiver type available to the transceiver during said future time interval in order to determine a post demodulation channel for the at least two User Equipments, in which emulation the determined radio channel characteristics,and determining (235) an SINR in the transceiver for the at least two User Equipments using the post demodulation channel.
摘要翻译：一种用于在未来时间间隔期间用于确定来自至少两个用户设备的信号的SINR的用于移动系统中的收发器的方法（200），包括：设置所述收发器以在一个无线电中接收（205）来自所述移动系统中的用户设备的传输每个用户设备的通道，从用户设备中选择（210）至少两个用户设备，其中具有要发送到收发器的数据。该方法包括确定（220）在至少两个用户设备的未来时间间隔期间的无线电信道特性，在所述未来时间间隔期间模拟（230）可用于收发器的至少一个接收机类型，以便确定后解调信道对于至少两个用户设备，其中仿真确定的无线电信道特性，以及使用后解调信道确定（235）用于所述至少两个用户设备的收发器中的SINR。

6. 发明授权

US08391131B2 Method for processing the random access transmission in the frequency domain 有权
标题翻译：在频域中处理随机接入传输的方法
公开(公告)号：US08391131B2
公开(公告)日：2013-03-05
申请号：US12162522
申请日：2007-01-24
申请人： Robert Baldemair , Jacobus Cornelis Haartsen , Stefan Parkvall , Gunnar Peters , Henrik Sahlin
发明人： Robert Baldemair , Jacobus Cornelis Haartsen , Stefan Parkvall , Gunnar Peters , Henrik Sahlin
IPC分类号： H04J11/00 , H04K1/10 , H04L27/28
CPC分类号： H04W74/0833 , H04J13/0003 , H04L27/2607 , H04L27/2613 , H04W74/08
摘要： There is provided a method of operating a communication system, the communication system comprising a user equipment and a receiver, the method in the system comprising generating a random access transmission in a user equipment and transmitting the random access transmission to the receiver in the communication system, the random access transmission including a preamble; receiving the random access transmission from the user equipment at the receiver; processing the random access transmission in the frequency domain to detect the preamble. In preferred embodiments of the invention, the preamble has a cyclic prefix, or is preceded by a plurality of zero-valued symbols.
摘要翻译：提供了一种操作通信系统的方法，所述通信系统包括用户设备和接收机，所述系统中的方法包括在用户设备中生成随机接入传输并将所述随机接入传输发送到所述通信系统中的接收机，所述随机接入传输包括前同步码; 在接收机处接收来自用户设备的随机接入传输; 处理频域中的随机接入传输以检测前导码。在本发明的优选实施例中，前导码具有循环前缀，或者在多个零值符号之前。

7. 发明申请

US20110244905A1 Method for Estimating Uplink Control Channel Quality 有权
标题翻译：估计上行链路控制信道质量的方法
公开(公告)号：US20110244905A1
公开(公告)日：2011-10-06
申请号：US13133584
申请日：2008-12-09
申请人： Per Burström , Aare Mällo , Henrik Sahlin , Arne Simonsson
发明人： Per Burström , Aare Mällo , Henrik Sahlin , Arne Simonsson
IPC分类号： H04W24/00
CPC分类号： H04W72/085 , H04L1/0026 , H04L1/0036 , H04L1/20 , H04W52/146 , H04W52/325
摘要： According to embodiment of the present invention, there is provided a radio base station (20) and a corresponding method for estimating the quality of the uplink control channel. The method comprises measuring (32, 42) a quality parameter of the uplink data channel, and using (38, 50) this to estimate the quality of the uplink control channel. In one embodiment, measurements of the uplink control channel are taken and their reliability determined. If the reliability is low (i.e. below a threshold, or below the respective measurements taken on the uplink data channel), then measurements on the data channel are used instead of those made on the control channel to estimate the control channel quality.
摘要翻译：根据本发明的实施例，提供了一种用于估计上行链路控制信道的质量的无线电基站（20）和相应的方法。该方法包括测量（32,42）上行链路数据信道的质量参数，并使用（38,50）来估计上行链路控制信道的质量。在一个实施例中，采用上行链路控制信道的测量并确定其可靠性。如果可靠性低（即低于阈值，或低于在上行链路数据信道上进行的相应测量），则使用数据信道上的测量来代替在控制信道上进行的测量来估计控制信道质量。

8. 发明授权

US06847690B1 Determinant-based synchronization techniques and systems 失效
标题翻译：基于决策者的同步技术和系统
公开(公告)号：US06847690B1
公开(公告)日：2005-01-25
申请号：US09717007
申请日：2000-11-22
申请人： Henrik Sahlin , Lars Lindbom , Ingemar Johansson
发明人： Henrik Sahlin , Lars Lindbom , Ingemar Johansson
IPC分类号： H04B7/08 , H04L7/00 , H04L7/04 , H04L25/02 , H04B1/10 , H04B14/04
CPC分类号： H04L25/0216 , H04B7/0805 , H04B7/084 , H04B7/0857 , H04L7/0004 , H04L7/042
摘要： Systems and methods for processing a received radio signal in a communication system are described. Initial time synchronization is acquired using a trace operator. Then, a number of channel taps for use in further processing is determined based on the initial time sync, also using a trace operator. A final synchronization position is then selected using the number of channel taps and, if multiple branches are employed to receive the signal, using a determinant-based technique. Finally, a channel estimate is determined using the final synchronization position.
摘要翻译：描述了在通信系统中处理接收到的无线电信号的系统和方法。使用跟踪操作符获取初始时间同步。然后，还使用跟踪操作符，基于初始时间同步来确定用于进一步处理的多个信道抽头。然后使用信道抽头的数量来选择最终同步位置，并且如果使用多个分支来接收信号，则使用基于行列式的技术。最后，使用最终同步位置来确定信道估计。

9. 发明授权

US06826226B1 Prefilter design by spectral factorization 有权
标题翻译：通过频谱分解进行预滤波器设计
公开(公告)号：US06826226B1
公开(公告)日：2004-11-30
申请号：US09688692
申请日：2000-10-17
申请人： Henrik Sahlin , Lars Lindbom
发明人： Henrik Sahlin , Lars Lindbom
IPC分类号： H03H730
CPC分类号： H04L25/03038 , H04L2025/0356 , H04L2025/03605
摘要： A baseband signal processing method for calculating minimum phase prefilters. The method preferably utilizes a spectral factorization approach. The prefilter is constructed from a minimum phase version of an estimated channel impulse response. Complex valued filter coefficients are determined by solving a system of linear equations for each iteration of the spectral factorization. The constructed prefilters provide equalization in both the forward and backward directions.
摘要翻译：一种用于计算最小相位预滤波器的基带信号处理方法。该方法优选地利用频谱分解方法。预滤器由估计的信道脉冲响应的最小相位版本构成。复数值滤波器系数通过求解频谱因式分解的每次迭代的线性方程组来确定。构造的预滤器在前进和后退方向都提供均衡。

10. 发明授权

US09832780B2 Method for estimating uplink control channel quality 有权
公开(公告)号：US09832780B2
公开(公告)日：2017-11-28
申请号：US13133584
申请日：2008-12-09
申请人： Per Burström , Aare Mällo , Henrik Sahlin , Arne Simonsson
发明人： Per Burström , Aare Mällo , Henrik Sahlin , Arne Simonsson
IPC分类号： H04B17/00 , H04W72/08 , H04L1/20 , H04W52/32 , H04L1/00 , H04W52/14
CPC分类号： H04W72/085 , H04L1/0026 , H04L1/0036 , H04L1/20 , H04W52/146 , H04W52/325
摘要： According to embodiment of the present invention, there is provided a radio base station (20) and a corresponding method for estimating the quality of the uplink control channel. The method comprises measuring (32, 42) a quality parameter of the uplink data channel, and using (38, 50) this to estimate the quality of the uplink control channel. In one embodiment, measurements of the uplink control channel are taken and their reliability determined. If the reliability is low (i.e. below a threshold, or below the respective measurements taken on the uplink data channel), then measurements on the data channel are used instead of those made on the control channel to estimate the control channel quality.

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