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1. 发明申请

WO2012035453A1 INTERFERER PARAMETER ESTIMATION METHOD AND APPARATUS 审中-公开
标题翻译：干扰参数估计方法和装置
公开(公告)号：WO2012035453A1
公开(公告)日：2012-03-22
申请号：PCT/IB2011/053539
申请日：2011-08-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , MOLNAR, Karl, J. , JÖNGREN, George
发明人： MOLNAR, Karl, J. , JÖNGREN, George
IPC分类号： H04L25/02 , H04J11/00 , H04L1/20 , H04W72/08 , H04L27/26
CPC分类号： H04L25/0202 , H04J11/0023 , H04L1/20 , H04L25/0226 , H04L27/2601 , H04L27/2647 , H04W24/10
摘要： Interference is estimated in an Orthogonal Frequency Division Multiplexing system by receiving at a wireless receiver pilot symbols and data symbols transmitted in time and frequency via resource blocks, detecting a first one of the data symbols transmitted to the wireless receiver via a time-frequency resource element of a first one of the resource blocks and identifying a second one of the resource blocks adjacent the first resource block having related interference parameters. The interference is estimated based on the pilot symbols transmitted via the first resource block and the pilot symbols transmitted via the second resource block.
摘要翻译：在正交频分复用系统中通过在无线接收机上接收经由资源块在时间和频率上发送的导频符号和数据符号来估计干扰，检测经由时间 - 频率资源元素发送到无线接收机的第一个数据符号并且识别与具有相关干扰参数的第一资源块相邻的资源块中的第二个资源块。基于经由第一资源块发送的导频符号和经由第二资源块发送的导频符号来估计干扰。

2. 发明申请

WO2012035452A1 CHANNEL STATE INFORMATION REPORTING FOR A SUCCESSIVELY DECODED, PRECODED MULTI-ANTENNA TRANSMISSION 审中-公开
标题翻译：通道状态信息报告，用于下一代已解码的多天线传输
公开(公告)号：WO2012035452A1
公开(公告)日：2012-03-22
申请号：PCT/IB2011/053537
申请日：2011-08-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , MOLNAR, Karl, J.
发明人： MOLNAR, Karl, J.
IPC分类号： H04L1/00 , H04L25/03 , H04B7/06
CPC分类号： H04L1/0023 , H04B7/0626 , H04B7/063 , H04B7/0639 , H04B7/0658 , H04L1/0045 , H04L25/03
摘要： Teachings herein provide reduced complexity channel state information (CSI) reporting for a successively decoded, precoded multi-antenna transmission. A wireless communication device reports CSI by forming, for each candidate transmission rank of the transmission, a sequence of codewords by iteratively adding codewords allowed for that rank to the sequence. At any given point in the sequence, the device adds the codeword expected to yield the highest individual information rate if decoded at that point in the sequence, considering the different rates possible under different precodings of the transmission. The device then computes, for each rank, a sum information rate across the codewords in the sequence formed for that rank, selects the rank having the highest sum information rate, and reports the selected rank along with the sequence formed for that rank. CSI reporting complexity is reduced because the device constrains its evaluation to only some of the possible decoding sequences.
摘要翻译：这里的教导为连续解码的预编码的多天线传输提供了降低复杂度的信道状态信息（CSI）报告。无线通信设备通过向该序列迭代地添加允许该等级的码字，为传输的每个候选传输等级形成码字序列来报告CSI。在序列中的任何给定点处，考虑到在传输的不同预编码下可能的不同速率，设备将预期的码字添加以产生最高个体信息速率，如果在序列中的那一点被解码。然后，该装置针对每个等级计算在为该等级形成的序列中的码字之间的和信息速率，选择具有最高和信息速率的秩，并且将所选择的等级与为该等级形成的序列一起报告。由于设备将其评估限制为只有一些可能的解码序列，因此CSI报告复杂度降低。

3. 发明申请

WO2011055258A2 METHOD AND APPARATUS FOR INTERFERER PARAMETER ESTIMATION USING MULTIPLE RECEIVER ARBITRATION 审中-公开
标题翻译：用多次接收机仲裁干扰参数估计的方法和装置
公开(公告)号：WO2011055258A2
公开(公告)日：2011-05-12
申请号：PCT/IB2010/054758
申请日：2010-10-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , MOLNAR, Karl, J.
发明人： MOLNAR, Karl, J.
CPC分类号： H04L27/0008 , H04L27/2649
摘要： In one embodiment, a receiver implements a method of demodulating a set of symbols dispersed within a time-frequency grid of a received OFDM signal The method includes determining which one of two or more demodulators is preferred for use in a given region of the time-frequency grid by evaluating detection statistics generated by the demodulator for the set of symbols. Each demodulators operates according to different demodulation parameters that correspond to different interference assumptions The method further includes recovering the set of symbols for decoding using whichever demodulator is preferred for each symbol according to the region from which the symbol is recovered. The method may be further extended by updating each demodulator's demodulation parameters using reference and/or data symbols from the regions where that demodulator is preferred, and recovering the desired symbols using the updated demodulation parameters. Such updating can be further iterated, for additional demodulation parameter refinement
摘要翻译：在一个实施例中，接收机实现了解调分散在接收到的OFDM信号的时间 - 频率网格内的一组符号的方法。该方法包括确定两个或更多个解调器中的哪一个优选用于使用在时频网格的给定区域中，通过评估由解调器为这组符号生成的检测统计量。每个解调器根据对应于不同干扰假设的不同解调参数进行操作。该方法还包括根据恢复符号的区域，使用无论哪个解调器对于每个符号都是优选的来恢复解码符号集合。该方法可以通过使用来自优选解调器的区域的参考和/或数据符号来更新每个解调器的解调参数，并且使用更新的解调参数恢复期望的符号来进一步扩展该方法。这种更新可以进一步迭代，用于附加的解调参数细化

4. 发明申请

WO2011007334A2 INTERFERER REGION IDENTIFICATION USING IMAGE PROCESSING 审中-公开
标题翻译：利用图像处理进行干扰区域识别
公开(公告)号：WO2011007334A2
公开(公告)日：2011-01-20
申请号：PCT/IB2010/053238
申请日：2010-07-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , MOLNAR, Karl, J. , BOTTOMLEY, Gregory, E.
发明人： MOLNAR, Karl, J. , BOTTOMLEY, Gregory, E.
CPC分类号： H04J11/0023 , G06T1/00 , H04L27/2647
摘要： Demodulation and interference parameter estimation m an OFDM receiver is improved by identifying regions, in a two-dimensional arras of time-frequency transmission positions, having related interference parameters, such as resulting from the same pre-coding scheme, transmission rank, transmitting antennas, and the like. An interference measure is estimated for each of a plurality of time-frequency positions. The interference measures are analyzed by considering them as pixels, or picture elements, in a two-dimensional image, and applying image processing algorithm to identify the regions having related interference parameters The image processing algorithms may include operations such as edge detection, segmentation, and or clustering The receiver may perform interference suppression or cancellation such as interference rejection combining of data extracted from signals received within an identified time-frequency region having related interference parameters.
摘要翻译： OFDM接收机中的解调和干扰参数估计通过识别在时频传输位置的二维阵列中具有相关干扰参数的区域而得到改进，所述相关干扰参数例如来自相同的预编码方案，传输秩，发射天线等。针对多个时频位置中的每一个估计干扰量度。通过将干涉测量视为二维图像中的像素或图像元素并应用图像处理算法来识别具有相关干涉参数的区域来分析干涉测量。图像处理算法可包括诸如边缘检测，分割和或群集接收机可以执行干扰抑制或消除，诸如从在具有相关干扰参数的识别时间频率区域内接收的信号中提取的数据的干扰抑制组合。

5. 发明申请

WO2007032715A1 METHOD USING RELIABILITY MEASURES CORRESPONDING TO CHANNEL PARAMETERS IN ADAPTIVE SCHEDULING 审中-公开
标题翻译：在自适应调度中使用与通道参数相关的可靠性测量方法
公开(公告)号：WO2007032715A1
公开(公告)日：2007-03-22
申请号：PCT/SE2005/001352
申请日：2005-09-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , FELTER, Stefan , MOLNAR, Karl, J. , KRASNY, Leonid
发明人： FELTER, Stefan , MOLNAR, Karl, J. , KRASNY, Leonid
IPC分类号： H04L1/00 , H04B7/04
CPC分类号： H04L1/20 , H04B17/336 , H04L1/0026
摘要： The present invention relates to a method and arrangement for improving the channel state condition information that is provided between transmitter and receiver units in a wireless communication system. The present invention introduces a statistical measure, e.g. an uncertainty value of a quantity or its prediction value, for parameters that describe a communication channel and define said measure under consideration of possible impacts on said channel. A reliability measure is provided for the communication channel from a transmitter unit to a receiver unit representing an estimation of appropriate channel parameters. The reliability measure is either retrieved at the receiver unit and based on direct channel observations or indirectly retrieved at the transmitter unit based on feedback information or conclusions from the behaviour of the reverse channel. The present invention can be implemented either in a radio base station or in a user equipment of a wireless communication system.
摘要翻译：本发明涉及一种用于改善在无线通信系统中在发射机和接收机单元之间提供的信道状态条件信息的方法和装置。本发明引入统计量度，例如用于描述通信信道的参数的数量或其预测值的不确定性值，并且在考虑对所述信道的可能影响的情况下定义所述测量。提供了从发射机单元到接收机单元的通信信道的可靠性度量，其表示适当信道参数的估计。可靠性测量在接收机单元处检索，并且基于直接信道观测或基于来自反向信道的行为的反馈信息或结论在发射机单元处间接检索。本发明可以在无线电基站或无线通信系统的用户设备中实现。

6. 发明申请

WO2009008787A1 METHOD AND ARRANGEMENTS FOR COMMUNICATION OF CHANNEL QUALITY INFORMATION IN A TELECOMMUNICATIONS SYSTEM 审中-公开
标题翻译：电信系统中通道质量信息通信的方法和安排
公开(公告)号：WO2009008787A1
公开(公告)日：2009-01-15
申请号：PCT/SE2007/050509
申请日：2007-07-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , MOLNAR, Karl, J. , ASTELY, David , SUNDIN, Tomas
发明人： MOLNAR, Karl, J. , ASTELY, David , SUNDIN, Tomas
IPC分类号： H04B7/06 , H04L1/00 , H04Q7/22
CPC分类号： H04B7/066 , H04B7/061 , H04B7/0632 , H04B7/0691 , H04L1/003 , H04L1/0068 , H04L1/0631
摘要： The present invention relates to a mobile terminal device (401), a base station (400) and a method that make it possible to use a channel quality indicator, CQI, reporting format for CQI reporting from the mobile terminal device to the base station, which CQI reporting format depends on a selected transmit antenna configuration. The mobile terminal device (400) is arranged to receive a signal (404) from a number of transmit antennas, which signal includes a number of subcarriers (412), and to determine the CQI, reporting format for a collection of the subcarriers based on the selected transmit antenna configuration. The mobile terminal device is further arranged to determine a number of CQI values (409) relating to said subcarriers in accordance with the determined CQI reporting format and to transmit the CQI values to the base station in a feedback signal (408). The CQI reporting format is adapted to the selected transmit antenna configuration such that the granularity of CQI reporting depends on the selected transmit antenna configuration.
摘要翻译：本发明涉及移动终端装置（401），基站（400）以及能够使用信道质量指示符，CQI，从移动终端装置向基站进行CQI报告的报告格式的方法，哪个CQI报告格式取决于所选择的发射天线配置。移动终端装置（400）被配置为从多个发送天线接收信号（404），该信号包括多个子载波（412），并且基于以下方式确定用于子载波的集合的报告格式：选定的发射天线配置。移动终端装置还被配置为根据所确定的CQI报告格式确定与所述子载波有关的CQI值（409）的数量，并且在反馈信号（408）中将CQI值发送到基站。 CQI报告格式适用于所选择的发射天线配置，使得CQI报告的粒度取决于所选择的发射天线配置。

7. 发明申请

WO2002082833A1 SHORT-TERM AND LONG-TERM CHANNEL CHARACTERISTICS 审中-公开
标题翻译：短期和长期通道特性
公开(公告)号：WO2002082833A1
公开(公告)日：2002-10-17
申请号：PCT/US2002/008072
申请日：2002-03-18
申请人： ERICSSON, INC. , ARSLAN, Huseyin , MOLNAR, Karl, J. , BOTTOMLEY, Gregory, E. , KHAYRALLAH, Ali, S.
发明人： ARSLAN, Huseyin , MOLNAR, Karl, J. , BOTTOMLEY, Gregory, E. , KHAYRALLAH, Ali, S.
IPC分类号： H04Q7/00
CPC分类号： H04L1/20
摘要： A communications system and method for compensating for an interferer signal in a received signal comprising a radio processor for filtering the received signal (310), and a demodulator (320) coupled to the radio processor for demodulating the filtered received signal. A channel quality estimator (330) coupled to the demodulator determines a channel characteristic based on instantaneous noise values of the received signal, for controlling the demodulation of the received signal to compensate for the interferer signal responsive to the channel characteristic. Further, where the channel characteristic is a first channel characteristic, the channel quality estimator determines a second channel characteristic based on instantaneous noise values of the received signal and controls demodulation of the received signal to compensate for the interferer signal responsive to the first and the second channel characteristics.
摘要翻译：一种用于补偿接收信号中的干扰信号的通信系统和方法，包括用于对接收信号进行滤波的无线电处理器（310），以及耦合到无线电处理器的用于解调滤波的接收信号的解调器（320）。耦合到解调器的信道质量估计器（330）基于接收信号的瞬时噪声值来确定信道特性，用于响应于信道特性来控制接收信号的解调以补偿干扰信号。此外，在信道特性是第一信道特性的情况下，信道质量估计器基于接收信号的瞬时噪声值来确定第二信道特性，并且控制接收信号的解调以补偿响应于第一和第二信号的干扰信号通道特性。

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