公开(公告)号：WO0247345A3

公开(公告)日：2003-02-27

申请号：PCT/EP0114217

申请日：2001-12-05

Applicant: ERICSSON TELEFON AB L M ,  WILHELMSSON LEIF

Inventor： WILHELMSSON LEIF

IPC: H04L1/18 ,  H04L7/04 ,  H04L25/03 ,  H04L27/00 ,  H04L27/22 ,  H04L27/233

CPC classification number: H04L1/18 ,  H04L7/04 ,  H04L27/22 ,  H04L2025/03592 ,  H04L2027/0034 ,  H04L2027/0095

Abstract: Methods and apparatuses for iterative parameter estimation are described. The iterative parameter estimation includes performing a first estimation of a first portion of a signal to obtain first parameters of the portion of the signal, wherein the signal contains no known data symbols. The first portion of the signal is demodulated using the first parameters to recover data symbols. The demodulated first portion of the signal is checked to confirm correct demodulation of the first portion of the signal. A second estimation of the first portion of the signal is performed using the recovered data symbols to obtain second parameters of the first portion of the signal. Then, a second portion of the signal is demodulated using the second parameters when the first portion of the signal is correctly demodulated.

Abstract translation: 描述了迭代参数估计的方法和装置。 迭代参数估计包括执行信号的第一部分的第一估计以获得信号部分的第一参数，其中信号不包含已知的数据符号。 使用第一参数来解调信号的第一部分以恢复数据符号。 检查信号的解调的第一部分以确认信号的第一部分的正确解调。 使用恢复的数据符号来执行信号的第一部分的第二估计，以获得信号的第一部分的第二参数。 然后，当信号的第一部分被正确解调时，使用第二参数来解调信号的第二部分。

公开(公告)号：WO0241517A3

公开(公告)日：2002-09-26

申请号：PCT/EP0113226

申请日：2001-11-15

Applicant: ERICSSON TELEFON AB L M ,  WILHELMSSON LEIF ,  WALLEN ANDERS

Inventor： WILHELMSSON LEIF ,  WALLEN ANDERS

IPC: H04B7/08 ,  H04L1/00

CPC classification number: H04L1/0021 ,  H04B7/0814 ,  H04B7/082 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0036 ,  H04L1/06

Abstract: A change in a time derivative of a branch's received power is determined (402). In response to the absolute value of the received power exceeding (404) a predetermined threshold, a second branch is switched to (406). The determination (402) of the rate of change of the received power can include use of a received-signal-strength indicator. The threshold can be a function of modulation and coding. A rapid change in time derivative of the received power indicates that the branch will soon become frequency selective and that, therefore, the second branch should be switched to (406) in order to avoid the negative affects of the frequency selectivity of the first branch.

Abstract translation: 确定分支的接收功率的时间导数的变化（402）。 响应于超过（404）预定阈值的接收功率的绝对值，将第二分支切换到（406）。 接收功率的变化率的确定（402）可以包括使用接收信号强度指示符。 阈值可以是调制和编码的函数。 接收功率的时间导数的快速变化表明分支将很快变为频率选择性，因此，应该将第二分支切换到（406），以避免第一分支的频率选择性的负面影响。

公开(公告)号：WO0197385A3

公开(公告)日：2002-04-11

申请号：PCT/EP0106513

申请日：2001-06-08

Applicant: TELEFONAKTIEBOLAGETLM ERICSSON ,  WILHELMSSON LEIF ,  HED ROBERT ,  MEULEMAN HANTE

Inventor： WILHELMSSON LEIF ,  HED ROBERT ,  MEULEMAN HANTE

IPC: G11B20/18 ,  H03M13/00 ,  H03M13/47 ,  H04L1/00 ,  H04L1/20 ,  G06F11/10

CPC classification number: H04L1/0061 ,  G11B20/18 ,  H03M13/00 ,  H03M13/3738 ,  H03M13/47 ,  H04L1/0045 ,  H04L1/20

Abstract: An encoded signal that comprises a plurality of received encoded signal values is received by using an error correction decoding technique to generate a plurality of decoded signals and one more decoded error detection signals. A correction value is generated that is representative of how much correction was performed by the error correction decoding technique to generate the plurality of decoded signals. The one or more decoded error detection signals are used to generate an error detection result. The decoded information signals are then alternatively accepted or rejected as a function of the error detection result and a comparison of the correction value with a threshold value.

Abstract translation: 通过使用纠错解码技术来接收包含多个接收的编码信号值的编码信号，以产生多个解码信号和一个解码的错误检测信号。 生成表示通过纠错解码技术执行多少校正以产生多个解码信号的校正值。 一个或多个解码的错误检测信号用于产生错误检测结果。 解码的信息信号随后作为误差检测结果的函数被交替地接受或拒绝，并且将校正值与阈值进行比较。

公开(公告)号：WO2013170911A1

公开(公告)日：2013-11-21

申请号：PCT/EP2012/064860

申请日：2012-07-30

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  DAHLMAN, Erik ,  ASTELY, David ,  SORRENTINO, Stefano ,  LINDOFF, Bengt ,  WILHELMSSON, Leif ,  HAMMARWALL, David ,  PARKVALL, Stefan

Inventor： DAHLMAN, Erik ,  ASTELY, David ,  SORRENTINO, Stefano ,  LINDOFF, Bengt ,  WILHELMSSON, Leif ,  HAMMARWALL, David ,  PARKVALL, Stefan

IPC: H04W52/24

CPC classification number: H04W52/244 ,  H04W48/08 ,  H04W52/36 ,  H04W84/045

Abstract: In a heterogeneous network cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, relevant data (e.g. control information) transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node (i.e. simultaneously to the macro node during the same protected transmission time intervals).

Abstract translation: 在异构网络小区部署中，移动终端可能需要在微微节点正在使用相同的频率或频率集合为移动终端发送用户数据的同时从宏节点接收控制数据传输。 这可能导致有问题的干扰情况。 根据本发明的几个实施例，使用两种一般方法中的至少一种来减轻上述干扰情况。 在第一种方法中，微微节点的传输功率在一些时间间隔内减小，从而将干扰降低到可能从宏节点接收的水平。 在一些可能与第一种方法组合的第二种方法中，从宏节点发送的相关数据（例如，控制信息）由微微节点提供，单独或与宏节点组合（即同时到达 宏节点在相同的受保护传输时间间隔期间）。

公开(公告)号：WO2013170908A1

公开(公告)日：2013-11-21

申请号：PCT/EP2012/061153

申请日：2012-06-13

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  WILHELMSSON, Leif ,  FODOR, Gabor ,  LINDOFF, Bengt

Inventor： WILHELMSSON, Leif ,  FODOR, Gabor ,  LINDOFF, Bengt

IPC: H04W28/04

CPC classification number: H04W72/082 ,  H04W24/02 ,  H04W72/0406 ,  H04W76/14

Abstract: A method of a first wireless communication device adapted to perform device-to-device communication with a third device is disclosed, wherein a second device causes interference to the device-to-device communication. The method comprises determining an interference criterion associated with the second wireless communication device, and transmitting an interference management request message related to the interference criterion to a network node. A corresponding method of a network node adapted to provide assistance of device-to-device communication is also disclosed. The method comprises receiving the interference management request message related to the interference criterion from the first wireless communication device, and transmitting an interference control message to at least one of the first wireless communication device, the second wireless communication device, and the third wireless communication device. Corresponding computer program product, arrangements, wireless communication device and network node are also disclosed.

Abstract translation: 公开了一种适于与第三设备执行设备到设备通信的第一无线通信设备的方法，其中第二设备对设备到设备通信造成干扰。 所述方法包括确定与所述第二无线通信设备相关联的干扰标准，以及将与所述干扰标准相关的干扰管理请求消息发送到网络节点。 还公开了适于提供设备到设备通信的辅助的网络节点的对应方法。 该方法包括从第一无线通信设备接收与干扰标准相关的干扰管理请求消息，并且向第一无线通信设备，第二无线通信设备和第三无线通信设备中的至少一个发送干扰控制消息 。 还公开了相应的计算机程序产品，布置，无线通信设备和网络节点。

公开(公告)号：WO2013123979A1

公开(公告)日：2013-08-29

申请号：PCT/EP2012/052947

申请日：2012-02-21

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  WILHELMSSON, Leif ,  RUNE, Johan ,  SACHS, Joachim ,  WALLÉN, Anders

Inventor： WILHELMSSON, Leif ,  RUNE, Johan ,  SACHS, Joachim ,  WALLÉN, Anders

IPC: H04L1/00 ,  H04L1/18

CPC classification number: H04L1/0007 ,  H04L1/1854 ,  H04L1/1887

Abstract: Data Block Transmission with Variable Retransmission Feedback Time For communicating data between a transmitter (10) and a receiver (14), wireless transmission of data blocks is implemented on the basis a retransmission protocol with variable value of a feedback time. The feedback time defines a time interval between transmission of one of the data blocks (22) and transmission of a feedback message (23) indicating whether the data block (22) was successfully received. The transmitter (10) or the receiver (14) determines the value of the feedback time. Depending on the determined value of the feedback time, the transmitter (10) controls transmission of the data block (22) to the receiver and/or the receiver (14) controls reception of the data block (22) at the receiver (14). The transmitter (10) may for example be a base station of a mobile network, and the receiver (14) may be a terminal device connected to the mobile network. (Fig. 1)

Abstract translation: 具有可变重发反馈时间的数据块传输对于在发射机（10）和接收机（14）之间传送数据，数据块的无线传输是基于具有反馈时间可变值的重传协议实现的。 反馈时间定义了一个数据块（22）的传输和表示数据块（22）是否被成功接收的反馈消息（23）的发送之间的时间间隔。 发射机（10）或接收机（14）确定反馈时间的值。 根据确定的反馈时间值，发射机（10）控制数据块（22）向接收机和/或接收机（14）的传输，控制接收机（14）处的数据块（22）的接收， 。 发射机（10）可以例如是移动网络的基站，并且接收机（14）可以是连接到移动网络的终端设备。 （图。1）

公开(公告)号：WO2012158102A2

公开(公告)日：2012-11-22

申请号：PCT/SE2012/050505

申请日：2012-05-14

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  LINDOFF, Bengt ,  WILHELMSSON, Leif ,  BERGLJUNG, Christian

Inventor： LINDOFF, Bengt ,  WILHELMSSON, Leif ,  BERGLJUNG, Christian

IPC: H04L1/00

CPC classification number: H04L1/0003 ,  H04J11/003 ,  H04L1/0009 ,  H04L1/0034 ,  H04L1/1867 ,  H04W24/10 ,  H04W72/12 ,  H04W72/1215 ,  H04W72/1226

Abstract: A method in a first radio communication node (110, 310, 710, 1010) and a first radio communication node (110, 310, 710, 1010) for scheduling a data transmission in a first time frame using one of a plurality of modulation and coding schemes are provided. The data transmission is to be transmitted between the first radio communication node (110, 310, 710, 1010) and a second radio communication node (120, 320, 720, 1020). The first radio communication node (110, 310, 710, 1010) obtains (301, 701, 1001, 1401) a first indication about channel quality for the first time frame. The first radio communication node (110, 310, 710, 1010) obtains (302, 702, 1002, 1402) second indication about a possible upcoming transmission failure. The possible upcoming transmission failure relates to a feedback information to be transmitted in a second time frame. The feedback information is associated with the data transmission in the first time frame. The first radio communication node (110, 310, 710, 1010) selects (303, 703, 1003, 1403) a modulation and coding scheme out of said plurality of modulation and coding schemes based on the first indication and the second indication. Next, the first radio communication node (110, 310, 710, 1010) schedules (304, 704, 1004, 1404) the data transmission using the selected modulation and coding scheme.

Abstract translation: 一种在第一无线电通信节点（110,310,710,1010）和第一无线电通信节点（110,310,710,1010）中的方法，用于使用多个调制中的一个来调度第一时间帧中的数据传输，以及 提供编码方案。 数据传输将在第一无线电通信节点（110,310,710,1010）和第二无线电通信节点（120,320,720,1020）之间传输。 第一无线电通信节点（110,310,710,1010）获得关于第一时间帧的信道质量的第一指示（301,701,1001,1401）。 第一无线电通信节点（110,310,710,1010）获得关于可能的即将到来的传输故障的第二指示（302,702,1002,1402）。 可能的即将到来的传输故障涉及要在第二时间帧中发送的反馈信息。 反馈信息与第一时间帧中的数据传输相关联。 基于第一指示和第二指示，第一无线电通信节点（110,310,710,1010）从所述多个调制和编码方案中选择（303,703,1003,1403）调制和编码方案。 接下来，第一无线电通信节点（110,310,710,1010）使用所选择的调制和编码方案来调度（304,704,1004,1404）数据传输。

公开(公告)号：WO2012116924A1

公开(公告)日：2012-09-07

申请号：PCT/EP2012/053105

申请日：2012-02-23

Applicant: Telefonaktiebolaget L M Ericsson (publ) ,  LINDOFF, Bengt ,  NORDSTRÖM, Fredrik ,  WILHELMSSON, Leif

Inventor： LINDOFF, Bengt ,  NORDSTRÖM, Fredrik ,  WILHELMSSON, Leif

IPC: H04L25/03 ,  H04L27/26

CPC classification number: H04L25/03343 ,  H04L27/2646 ,  H04W56/0015 ,  H04W56/0045

Abstract: An Orthogonal Frequency Division Multiplexing (OFDM) symbol for transmission from a non-reference transceiver to a user equipment (UE) in a mobile communication system is generated by ascertaining a general timing for transmission of OFDM symbols, wherein the general timing is associated with a reference transceiver. A UE timing relative to the general timing is ascertained. An initial resource element (RE) value is adjusted by a pre-compensating amount to obtain a pre-compensated RE value, wherein the pre-compensating amount is based on the UE timing relative to the general timing. The pre-compensated resource element value is supplied as one of a plurality of values to be transmitted. An IFFT is performed on the plurality of values to be transmitted to obtain pre-compensated initial signal information. A cyclic prefix is appended to the pre-compensated initial signal information to form an OFDM symbol for transmission from the non-reference transceiver to the UE.

Abstract translation: 通过确定用于OFDM符号的传输的一般定时来生成用于在移动通信系统中从非参考收发器到用户设备（UE）的传输的正交频分复用（OFDM）符号，其中，一般定时与 参考收发器。 确定相对于一般定时的UE定时。 通过预补偿量来调整初始资源元素（RE）值以获得预补偿RE值，其中预补偿量基于相对于一般定时的UE定时。 预补偿资源元素值被提供为要发送的多个值之一。 对要发送的多个值执行IFFT以获得预补偿的初始信号信息。 将循环前缀附加到预补偿的初始信号信息以形成用于从非参考收发器到UE的传输的OFDM符号。

公开(公告)号：WO2012107286A1

公开(公告)日：2012-08-16

申请号：PCT/EP2012/051108

申请日：2012-01-25

Applicant: Telefonaktiebolaget L M Ericsson (publ) ,  WILHELMSSON, Leif ,  SUNDSTRÖM, Lars ,  FENGHAO, Mu

Inventor： WILHELMSSON, Leif ,  SUNDSTRÖM, Lars ,  FENGHAO, Mu

IPC: H03D7/18

CPC classification number: H04W36/30 ,  H03D7/18 ,  H03D2200/0045 ,  H04B17/327 ,  H04B17/336

Abstract: The disclosure relates to a Complex Intermediate Frequency (CIF)-based receiver adapted to process a received signal comprising a signal component at a desired frequency and a signal component as an image frequency. The CIF-based receiver determines the power of the received signal by calibrating the receiver to minimize the power of the signal component at the image frequency that interferes with the signal component at the desired frequency, introduces signal leakage from the image frequency to intentionally degrade the quality of the signal component at the desired frequency, and determines the power of the signal component at the image frequency based on the amount of degradation.

Abstract translation: 本公开涉及一种适用于处理包含期望频率的信号分量和信号分量的接收信号作为图像频率的基于复数中频（CIF）的接收机。 基于CIF的接收机通过校准接收机来确定接收信号的功率，以使图像频率处的信号分量的功率最小化，从而影响在期望频率处的信号分量，从而引起来自图像频率的信号泄漏以故意降级 以期望频率的信号分量的质量，并且基于退化量确定图像频率处的信号分量的功率。

公开(公告)号：WO2011061164A3

公开(公告)日：2011-08-11

申请号：PCT/EP2010067523

申请日：2010-11-16

Applicant: ERICSSON TELEFON AB L M ,  WILHELMSSON LEIF ,  STATTIN HANS ,  CARLBERG ERIK ,  MATTISSON SVEN

Inventor： WILHELMSSON LEIF ,  STATTIN HANS ,  CARLBERG ERIK ,  MATTISSON SVEN

IPC: H04W16/14

CPC classification number: H04W16/14 ,  H04W88/06

Abstract: A communication device has a controller operatively connected to at least a first transceiver and a second transceiver, wherein the first transceiver receives signals on one or more channels within a first frequency band and the second transceiver transmits signals on one or more channels within a second frequency band, wherein the first and second frequency bands are adjacent one another so that each of the first and second frequency bands has an adjacent border and a nonadjacent border. Coexistence between the first and second transceivers is achieved by adjusting receive and/or transmit filters associated with the transceivers to create a guard band that is located more in the first frequency band if the second transceiver is using frequencies close to its adjacent border, and a guard band that is more in the second frequency band if the second transceiver is not using frequencies close to its adjacent border.

Abstract translation: 通信设备具有可操作地连接到至少第一收发器和第二收发器的控制器，其中第一收发器在第一频带内的一个或多个信道上接收信号，并且第二收发器在第二频率内的一个或多个信道上发送信号 带，其中所述第一和第二频带彼此相邻，使得所述第一和第二频带中的每一个具有相邻边界和不相邻的边界。 通过调整与收发器相关联的接收和/或发射滤波器来实现第一和第二收发器之间的共存，以产生更靠近第一频带的保护频带，如果第二收发器使用接近其相邻边界的频率，以及 如果第二收发器不使用靠近其相邻边界的频率，则在第二频带中更多的保护频带。