公开(公告)号：US08125938B2

公开(公告)日：2012-02-28

申请号：US10596619

申请日：2003-12-19

Applicant: Johan Nystrom ,  Pal Frenger

Inventor： Johan Nystrom ,  Pal Frenger

IPC: H04B7/14

CPC classification number: H03M13/3905 ,  H03M13/45 ,  H04B7/155 ,  H04B7/2606 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0055 ,  H04L1/0082 ,  H04L1/18 ,  H04L1/1845 ,  H04L2001/0097 ,  H04W16/26

Abstract: A relay station (606, 806a, 806b, 906a, 906b, 1006 and 1106) and a method (700) are described herein that enables reliable digital communications to occur between two nodes in a wireless relay based network (600, 800, 900, 1000 and 1100). The wireless relay based network includes a first node (602, 802, 902, 1002 and 1102) that transmits information in coded/modulated digital communications to a second node (604, 804, 904, 1004 and 1104) via one or more relay stations. And, each relay station is capable of: (1) receiving (702) a coded/modulated digital communication from the first node; (2) computing (704) a plurality of reliability values for a plurality of information symbols or coded symbols in the received coded/modulated digital communication; and (3) transmitting (706) a coded/modulated digital communication that has the computed reliability values embedded therein to the second node.

Abstract translation: 本文描述了一种中继站（606,806a，806b，906a，906b，1006和1106）以及方法（700），其使得能够在基于无线中继的网络中的两个节点之间进行可靠的数字通信（600,800,900， 1000和1100）。 基于无线中继的网络包括经编码/调制数字通信中的信息经由一个或多个中继站（604,804,904,1004和1104）向第二节点（604,804,904,1004和1104）发送信息的第一节点（602,802,902,1002和1102） 。 并且，每个中继站能够：（1）从第一节点接收（702）编码/调制的数字通信; （2）在接收到的编码/调制数字通信中对多个信息符号或编码符号计算（704）多个可靠性值; 和（3）将嵌入其中的计算的可靠性值的编码/调制数字通信发送（706）到第二节点。

公开(公告)号：US20070116092A1

公开(公告)日：2007-05-24

申请号：US10596619

申请日：2003-12-19

Applicant: Johan Nystrom ,  Pal Frenger

Inventor： Johan Nystrom ,  Pal Frenger

IPC: H04B1/00

CPC classification number: H03M13/3905 ,  H03M13/45 ,  H04B7/155 ,  H04B7/2606 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0055 ,  H04L1/0082 ,  H04L1/18 ,  H04L1/1845 ,  H04L2001/0097 ,  H04W16/26

Abstract: A relay station (606, 806a, 806b, 906a, 906b, 1006 and 1106) and a method (700) are described herein that enables reliable digital communications to occur between two nodes in a wireless relay based network (600, 800, 900, 1000 and 1100). The wireless relay based network includes a first node (602, 802, 902, 1002 and 1102) that transmits information in coded/modulated digital communications to a second node (604, 804, 904, 1004 and 1104) via one or more relay stations. And, each relay station is capable of (1) receiving (702) a coded/modulated digital communication from the first node; (2) computing (704) a plurality of reliability values for a plurality of information symbols or coded symbols in the received coded/modulated digital communication; and (3) transmitting (706) a coded/modulated digital communication that has the computed reliability values embedded therein to the second node.

Abstract translation: 本文描述了一种中继站（606,806a，806b，906a，906b，1006和1106）和方法（700），其使得能够在基于无线中继的网络中的两个节点之间进行可靠的数字通信（600， 800,900,1000和1100）。 基于无线中继的网络包括经编码/调制数字通信中的信息经由一个或多个中继站（604,804,904,1004和1104）向第二节点（604,804,904,1004和1104）发送信息的第一节点（602,802,902,1002和1102） 。 并且，每个中继站能够（1）从第一节点接收（702）编码/调制的数字通信; （2）在接收到的编码/调制数字通信中对多个信息符号或编码符号计算（704）多个可靠性值; 和（3）将嵌入其中的计算的可靠性值的编码/调制数字通信发送（706）到第二节点。

公开(公告)号：US20070002725A1

公开(公告)日：2007-01-04

申请号：US10581995

申请日：2004-12-01

Applicant: Johan Nystrom ,  Pal Frenger ,  Erik Dahlman

Inventor： Johan Nystrom ,  Pal Frenger ,  Erik Dahlman

IPC: H04J11/00

CPC classification number: H04L27/30 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2626 ,  H04L27/2647

Abstract: In a system applying orthogonal frequency division multiplexing, OFDM, a number of carriers are reserved for communication between unsynchronised nodes (N1, N2). At least one such reserved carrier is assigned to each base station. A sinusoidal signal is transmitted on this reserved carrier during a time period at least equal to two consecutive OFDM symbols. The unsynchronised receiver detects the sinusoidal signal during one of two consecutive OFDM symbol time periods. The existence, the frequency and the signal power of the signal give information about the existence and identity of the transmitter. Also, estimates of relative velocities and distances can be deduced. In preferred embodiments, the sinusoidal signal can also be used to transmit further information by using signal modulation or coding that is independent of the absolute signal phase.

Abstract translation: 在应用正交频分复用的系统中，OFDM被保留用于非同步节点（N 1，N 2）之间的通信。 至少一个这样的预留载体被分配给每个基站。 在至少等于两个连续OFDM符号的时间周期内，在该保留载波上发送正弦信号。 在两个连续的OFDM符号时间段之一期间，非同步接收机检测正弦信号。 信号的存在，频率和信号功率给出关于发射机的存在和身份的信息。 此外，可以推导出相对速度和距离的估计。 在优选实施例中，正弦信号还可以用于通过使用独立于绝对信号相位的信号调制或编码来发送进一步的信息。

公开(公告)号：US20070249361A1

公开(公告)日：2007-10-25

申请号：US11578515

申请日：2005-03-29

Applicant: Goran Klang ,  Pal Frenger ,  Stefan Parkvall ,  Johan Nystrom

Inventor： Goran Klang ,  Pal Frenger ,  Stefan Parkvall ,  Johan Nystrom

IPC: H04B7/00

CPC classification number: H04W16/10 ,  H04W72/08

Abstract: Radio resources are allocated to communication between a mobile station and a base station. The available set of radio resources may comprise radio resources primarily assigned to a neighboring cell if the 5 mobile station experience an instantaneous low level of co-channel interference from such neighboring cells. The existence of interference is preferably deduced from signal quality measurements of pilot signals. The allocation may concern uplink and/or downlink communication. Devices for performing the measurements are located in the mobile station, while devices for performing the evaluation, selection and actual allocation can be placed in different parts of the communications system—in the mobile station, in a base station or in a core network node, or as a distributed means.

Abstract translation: 无线资源分配给移动台与基站之间的通信。 如果5个移动站体验到来自这些相邻小区的同信道干扰的瞬时低电平，则可用的无线电资源组可以包括主要分配给相邻小区的无线电资源。 干扰的存在优先从导频信号的信号质量测量推导出来。 该分配可以涉及上行链路和/或下行链路通信。 用于执行测量的设备位于移动站中，而用于执行评估，选择和实际分配的设备可以放置在移动站，基站或核心网络节点中的通信系统的不同部分中， 或作为分布式手段。

公开(公告)号：US20070104174A1

公开(公告)日：2007-05-10

申请号：US10582478

申请日：2004-12-01

Applicant: Johan Nystrom ,  Pal Frenger ,  Erik Dahlman ,  Svante Signell ,  Goran Klang

Inventor： Johan Nystrom ,  Pal Frenger ,  Erik Dahlman ,  Svante Signell ,  Goran Klang

IPC: H04J1/00

CPC classification number: H04L5/0048 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/006 ,  H04L25/0226 ,  H04W16/02 ,  H04W16/10 ,  H04W16/12 ,  H04W52/325 ,  H04W72/08

Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.

Abstract translation: 一组不同的导频结构被设计用于不同环境和/或预期在小区中发生的不同用户行为。 估计用户的无线电条件。 然后，在用于其通信的资源空间中为每个用户分配一个区域（108A-E），其具有合适的导频配置。 在一个实施例中，整个资源空间在不同部分（110A-D）中设置有不同的导频结构。 然后提前向用户分配资源，以便将估计的无线电条件与所提供的导频结构相匹配。 在另一个实施例中，首先执行分配，然后在所分配的资源空间区域内适配实际的导频结构以适应环境条件。

公开(公告)号：US08626213B2

公开(公告)日：2014-01-07

申请号：US13060381

申请日：2008-08-27

Applicant: Pal Frenger ,  Fredrik Gunnarsson

Inventor： Pal Frenger ,  Fredrik Gunnarsson

IPC: H04B7/00 ,  H04B15/00

CPC classification number: H04L5/0082 ,  H04L5/0033 ,  H04L5/005 ,  H04L5/0073 ,  H04L5/0078 ,  H04W8/26 ,  H04W16/12 ,  H04W24/02 ,  H04W72/1289

Abstract: The present invention relates to methods, a communication network node and a user equipment for detecting collision of physical cell identities in a communication network system comprising radio base stations each serving at least one cell through which user equipments are moving. Reference signals comprising reference symbols corresponding to a physical cell identity are sent from said radio base stations to said user equipments over a radio interface. Transmission gaps of reference symbols are inserted in the reference signal in order to perform a physical cell identity collision test. The user equipments are arranged to detect if any other radio base station is sending reference symbols corresponding to the same physical cell identity during the transmission gaps. Thereby a physical cell identity collision is detected. The reference symbol transmission gaps are fractionally distributed within said reference signal such that at least some of said reference symbols are unaffected by said reference symbol transmission gaps.

Abstract translation: 本发明涉及用于检测通信网络系统中的物理小区标识的冲突的方法，通信网络节点和用户设备，所述通信网络系统包括各自为用户设备正在移动的至少一个小区服务的无线基站。 包括对应于物理小区标识的参考符号的参考信号通过无线电接口从所述无线电基站发送到所述用户设备。 参考符号的传输间隙插入到参考信号中，以便执行物理单元标识冲突测试。 用户设备被布置为检测在传输间隙期间是否有任何其他无线电基站发送对应于相同物理小区标识的参考符号。 从而检测到物理小区标识冲突。 参考符号传输间隙被分数分布在所述参考信号中，使得所述参考符号中的至少一些不受所述参考符号传输间隙的影响。

公开(公告)号：US20120003926A1

公开(公告)日：2012-01-05

申请号：US13256782

申请日：2009-04-29

Applicant: Mikael Coldrey ,  Pal Frenger ,  Patrik Persson

Inventor： Mikael Coldrey ,  Pal Frenger ,  Patrik Persson

IPC: H04B7/15 ,  H04W24/00

CPC classification number: H04B7/15557 ,  H04B7/0632 ,  H04B7/15592

Abstract: The invention discloses a transceiver (210, 215; 305, 310, 320, 330) for use in a cellular communications system (200, 300), arranged to communicate with at least one other transceiver in the system by means of technology for Multiple Input Multiple Output, MIMO. The transceiver is also arranged to control the function of a repeater (206, 207, 208, 209; 340) which is arranged to forward communication between the transceiver and said at least one other transceiver, said control being carried out as a result of measured performance parameters of the communication between the transceiver and said at least one other transceiver. In one embodiment, the function in the repeater (206, 207, 208, 209; 340) which the transceiver is arranged to control comprises activation and deactivation of the repeater.

Abstract translation: 本发明公开了一种在蜂窝通信系统（200,300）中使用的收发器（210,215; 305,310,320,330），其被布置成通过用于多输入的技术与系统中的至少一个其他收发器通信 多输出，MIMO。 收发器还被布置成控制中继器（206,207,208,209; 340）的功能，其被布置成转发收发器与所述至少一个其他收发器之间的通信，所述控制是作为测量结果执行的 收发器与所述至少一个其他收发器之间的通信的性能参数。 在一个实施例中，收发器被布置为控制的中继器（206,207,208,209; 340）中的功能包括中继器的激活和去激活。

公开(公告)号：US20110235529A1

公开(公告)日：2011-09-29

申请号：US13132646

申请日：2008-12-05

Applicant: Kristina Zetterberg ,  Mehdi Amirijoo ,  Pal Frenger ,  Fredrik Gunnarsson ,  Johan Moe

Inventor： Kristina Zetterberg ,  Mehdi Amirijoo ,  Pal Frenger ,  Fredrik Gunnarsson ,  Johan Moe

IPC: H04W24/00 ,  H04W74/08

CPC classification number: H04L5/0053 ,  H04L27/2607 ,  H04W52/325 ,  H04W52/343 ,  H04W52/50

Abstract: The present invention relates to a method and a communication network node for enabling automatic optimization of a random access preamble format usage in a communication network system. The network comprises the communication network node serving at least one cell to which user equipments are accessing. A random access preamble format is set for each cell and comprises a random access sequence length, TSEQ, and a random access preamble cyclic prefix length, TCP. First, the random access sequence length, TSEQ is selected and then the random access preamble cyclic prefix length, T CP is selected. Based on the selected random access sequence length, T SEQ and random access preamble cyclic prefix length, TCP, which random access preamble format to use in said cell is selected.

Abstract translation: 本发明涉及一种用于使通信网络系统中的随机接入前导码格式使用自动优化的方法和通信网络节点。 网络包括为用户设备正在访问的至少一个小区服务的通信网络节点。 为每个小区设置随机接入前导码格式，并且包括随机接入序列长度TSEQ和随机接入前导循环前缀长度TCP。 首先，选择随机接入序列长度TSEQ，然后选择随机接入前导码循环前缀长度T CP。 基于选择的随机接入序列长度T SEQ和随机接入前导循环前缀长度TCP，选择在所述小区中使用的随机接入前导码格式。

公开(公告)号：US07881260B2

公开(公告)日：2011-02-01

申请号：US10582688

申请日：2003-12-19

Applicant: Johan Nyström ,  Göran Klang ,  Pal Frenger

Inventor： Johan Nyström ,  Göran Klang ,  Pal Frenger

IPC: H04J11/00 ,  H04W72/00

CPC classification number: H04L5/0044 ,  H04L5/0007 ,  H04L27/261 ,  H04W16/00 ,  H04W16/12

Abstract: A method for use in a cellular, FFT based multi-carrier communications system comprising N subcarriers, for allocating a set P of sub-carriers to be reserved for potential use as carriers of specific information. A number M indicating the number of sub-carriers to be allocated to a set P of sub-carriers, such that L=N/M is an integer. At least two subcarriers of the set P={(n0+m*L) mod N : 0≦m

Abstract translation: 一种在基于FFT的多载波通信系统中使用的方法，其包括N个子载波，用于分配待保留用于潜在用途的子载波的集合P作为特定信息的载体。 指示要分配给子载波的集合P的子载波的数量的数字M，使得L = N / M是整数。 对于特定信息，集合P = {（n0 + m * L）mod N：0＆nlE; m

公开(公告)号：US07672447B1

公开(公告)日：2010-03-02

申请号：US09584796

申请日：2000-06-01

Applicant: Fredrik Lindqvist ,  Antoni Fertner ,  Pal Frenger

Inventor： Fredrik Lindqvist ,  Antoni Fertner ,  Pal Frenger

IPC: H04M9/08

CPC classification number: H04B3/23

Abstract: An echo canceller reduces an echo signal produced when the transmitted signal leaks back into the receiver via a hybrid. The echo canceller estimates the echo signal from the transmitted signal, and then subtracting the estimated echo signal from the received signal. In practice, the echo path channel in a DMT-modem is much longer than the cyclic prefix, and therefore, the received echo signal will be subjected to both ISI (inter-symbol-interference) and ICI (inter-carrier-interference). A traditional echo canceller, designed for a xDSL-modem, uses either a time domain adaptive FIR-filter or a combined echo canceller implemented in both time and frequency domain. A matrix-based adaptive echo canceller is implemented in the frequency domain. Various example embodiments are disclosed.

Abstract translation: 回波消除器减少当发送的信号通过混合器泄漏回接收器时产生的回波信号。 回波消除器估计来自发射信号的回波信号，然后从接收信号中减去估计的回波信号。 实际上，DMT调制解调器中的回波路径信道比循环前缀长得多，因此接收到的回波信号将受到ISI（符号间干扰）和ICI（载波间干扰）两者的影响。 为xDSL调制解调器设计的传统回声消除器采用时域自适应FIR滤波器或时域和频域实现的组合回波消除器。 在频域中实现基于矩阵的自适应回波消除器。 公开了各种示例性实施例。