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11. 发明申请

WO2009084990A1 USING SPATIAL PROPERTIES OF MIMO CHANNELS FOR ENHANCED CHANNEL ESTIMATION IN MIMO SYSTEMS 审中-公开
标题翻译：使用MIMO信道的空间属性来增强MIMO系统中的信道估计
公开(公告)号：WO2009084990A1
公开(公告)日：2009-07-09
申请号：PCT/SE2007/051084
申请日：2007-12-27
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ZANGI, Kambiz , KRASNY, Leonid
发明人： ZANGI, Kambiz , KRASNY, Leonid
IPC分类号： H04B7/08 , H04B7/04 , H04B7/06
CPC分类号： H04B7/0413 , H04L5/0048 , H04L25/0204 , H04L25/0224 , H04L25/0244 , H04L27/2647
摘要： An apparatus for estimating a channel response associated with a multiple input/multiple output (MIMO) system includes an antenna that receives multiple pilot symbols, each of the multiple pilot symbols transmitted from a different one of multiple transmit antennas of a transmitter in the MIMO system. The apparatus further includes a channel estimator that determines spatial, time and frequency correlations of channels of the MIMO system among the multiple transmit antennas when estimating a channel response associated with the MIMO system based on multiple ones of the received plurality of pilot symbols.
摘要翻译：用于估计与多输入/多输出（MIMO）系统相关联的信道响应的装置包括：天线，其接收多个导频符号，所述多个导频符号中的每一个从MIMO系统中的发射机的多个发射天线中的不同发射天线发送。该装置还包括信道估计器，其基于接收到的多个导频符号中的多个导频符号估计与MIMO系统相关联的信道响应，确定MIMO系统在多个发射天线中的信道的空间，时间和频率相关性。

12. 发明申请

WO2008060203A1 METHOD AND ARRANGEMENT FOR PILOT PATTERN BASED CONTROL SIGNALLING IN MIMO SYSTEMS 审中-公开
标题翻译： MIMO系统中基于引导模式的控制信号的方法和布置
公开(公告)号：WO2008060203A1
公开(公告)日：2008-05-22
申请号：PCT/SE2006/050469
申请日：2006-11-13
申请人： Telefonaktiebolaget LM Ericsson (publ) , WANG, Yi-Pin ERIC , CHENG, Jung-Fu THOMAS , GRANT, Stephen , KRASNY, Leonid , MOLNAR, Karl J
发明人： WANG, Yi-Pin ERIC , CHENG, Jung-Fu THOMAS , GRANT, Stephen , KRASNY, Leonid , MOLNAR, Karl J
IPC分类号： H04B7/04 , H04L1/00
CPC分类号： H04L5/005 , H04B7/0417 , H04B7/0632 , H04B7/0684 , H04B2201/70701 , H04J13/0003 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0618 , H04L2001/0093
摘要： The present invention relates to control signaling in wireless communication systems. In particular, the present invention relates to control signaling in MIMO based communication systems. In the method according to the invention control information is transferred from a base station to at least one user equipment, via a plurality of common pilot channels. A set of unique pilot sequences has been pre- defined, and the base station assigns specific pilot sequences from the set of pilot sequences to specific common pilot channels, forming a pilot sequence assignment pattern representing a specific control information. The user equipment, having knowledge of the relations between pilot sequence assignment patterns and control information, interprets the received pilot sequence assignment pattern as specific control information. The method is particularly well suited for broadcast type control information.
摘要翻译：本发明涉及无线通信系统中的控制信令。具体地，本发明涉及基于MIMO的通信系统中的控制信令。在根据本发明的方法中，控制信息经由多个公共导频信道从基站传送到至少一个用户设备。已经预先定义了一组唯一的导频序列，并且基站将特定的导频序列从该导频序列集合分配给特定的公共导频信道，形成表示特定控制信息的导频序列分配模式。了解导频序列分配模式和控制信息之间的关系的用户设备将接收到的导频序列分配模式解释为特定的控制信息。该方法特别适用于广播类型控制信息。

13. 发明申请

WO2005067338A1 NETWORK CONTROLLED CHANNEL INFORMATION REPORTING 审中-公开
标题翻译：网络控制信道信息报告
公开(公告)号：WO2005067338A1
公开(公告)日：2005-07-21
申请号：PCT/US2004/039014
申请日：2004-11-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , CHENG, Jung-fu , WANG, Yi-Pin , GRANT, Stephen James , KRASNY, Leonid , MOLNAR, Karl James
发明人： CHENG, Jung-fu , WANG, Yi-Pin , GRANT, Stephen James , KRASNY, Leonid , MOLNAR, Karl James
IPC分类号： H04Q7/38
CPC分类号： H04W8/24 , H04W24/00
摘要： A method of supplying channel information in a wireless communication system comprises a mobile terminal normally providing a basic channel report to the wireless communication system; the mobile terminal receiving at least one common feedback criterion broadcast to a plurality of mobile terminals; the mobile terminal determining if the mobile terminal satisfies a condition based on the at least one common feedback criterion; and the mobile terminal selectively providing an enhanced channel report to the wireless communication system based on the determining. The basic channel report may comprise information related to a first set of channel parameters, and the enhanced channel report may provide greater detail on the first set of channel parameters and/or relate to a second set of channel parameters. A method of a base station adaptively controlling channel information reporting by broadcast transmitting at least one common feedback criterion is also presented.
摘要翻译：一种在无线通信系统中提供频道信息的方法包括通常向无线通信系统提供基本频道报告的移动终端; 所述移动终端接收向多个移动终端广播的至少一个公共反馈准则; 所述移动终端基于所述至少一个公共反馈标准来确定所述移动终端是否满足条件; 并且所述移动终端基于所述确定选择性地向所述无线通信系统提供增强的信道报告。基本信道报告可以包括与第一组信道参数相关的信息，并且增强信道报告可以提供关于第一组信道参数的更多细节和/或涉及第二组信道参数。还提出了一种通过广播发送至少一个公共反馈标准自适应地控制信道信息报告的基站的方法。

14. 发明申请

WO2008054267A1 METHOD AND ARRANGEMENT FOR SINR FEEDBACK IN MIMO BASED WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：基于MIMO的无线通信系统中SINR反馈的方法和布置
公开(公告)号：WO2008054267A1
公开(公告)日：2008-05-08
申请号：PCT/SE2006/001241
申请日：2006-11-01
申请人： TELEFONAKTIEBOLAGET LM Ericsson (publ) , WANG, Yi-Pin, Eric , CHENG, Jung-Fu, Thomas , GRANT, Stephen , KRASNY, Leonid , MOLNAR, Karl
发明人： WANG, Yi-Pin, Eric , CHENG, Jung-Fu, Thomas , GRANT, Stephen , KRASNY, Leonid , MOLNAR, Karl
IPC分类号： H04L1/00 , H04B7/04
CPC分类号： H04L1/0015 , H04B7/0426 , H04B2201/709727 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0618 , H04W52/262 , H04W52/42
摘要： The present invention relates to a method and arrangement to enhance the communication performance in wireless communication systems. The method of the invention provides better adjustment of reported SINR in MIMO, and PARC-MIMO based communication systems. According to the method information relating to signal-to-interference-plus-noise ratio is determined by the user equipment and reported to the base station. The base station adjust reported SINRs using a model of the SINR dependences of power and code allocation. The dependences is modeled by a function comprising a first parameter relating only to power allocation and a second parameter relating only to code allocation. The first parameter has a power allocation exponent and the second parameter has a code allocation exponent. Both the power allocation exponent and the code allocation exponent are data stream dependent.
摘要翻译：本发明涉及一种用于增强无线通信系统中的通信性能的方法和装置。本发明的方法提供对MIMO中所报告的SINR的更好的调整以及基于PARC-MIMO的通信系统。根据该方法，信号与干扰加噪声比的信息由用户设备确定并向基站报告。基站使用功率和码分配的SINR依赖关系的模型来调整报告的SINR。依赖关系由包括仅与功率分配相关的第一参数的功能和仅与代码分配相关的第二参数来建模。第一个参数具有功率分配指数，第二个参数具有代码分配指数。功率分配指数和代码分配指数都是依赖于数据流。

15. 发明申请

WO2005081444A1 ADAPTIVE FEEDBACK FOR MINO COMMUNICATION SYSTEMS 审中-公开
标题翻译：适应性反馈用于微型通信系统
公开(公告)号：WO2005081444A1
公开(公告)日：2005-09-01
申请号：PCT/US2005/003944
申请日：2005-01-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , KRASNY, Leonid , MOLNAR, Karl James , CHENG, Jung-fu , GRANT, Stephen James , WANG, Yi-Pin
发明人： KRASNY, Leonid , MOLNAR, Karl James , CHENG, Jung-fu , GRANT, Stephen James , WANG, Yi-Pin
IPC分类号： H04L1/06
CPC分类号： H04B7/0686 , H04B7/061 , H04B7/0626 , H04B7/065 , H04B7/0689 , H04B7/0691 , H04B2201/709727 , H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L1/003 , H04L1/06
摘要： An adaptive transmission scheme provides multiple levels of adaptation. At a first level, a selection is made between a limited feedback or open loop scheme and a rich feedback or closed loop scheme. At a second level of adaptation, a diversity mode is selected. Additional levels of adaptation could be employed.
摘要翻译：自适应传输方案提供多级适配。在第一级，在有限的反馈或开环方案和丰富的反馈或闭环方案之间进行选择。在第二级适配时，选择分集模式。可以采用额外的适应水平。

16. 发明申请

WO2008153479A3 METHOD AND APPARATUS FOR CONTROLLING MULTI-ANTENNA TRANSMISSION IN A WIRELESS COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2008153479A3
公开(公告)日：2008-12-18
申请号：PCT/SE2008/050616
申请日：2008-05-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： HUI, Dennis , KRASNY, Leonid
IPC分类号： H04L1/06 , H04B7/06 , H04L27/26
摘要： Multi-antenna transmission control presented herein involves generating a set of virtual channel realizations at the transmitter (10) that shares the same second-order statistics as the actual channel realizations observed for a targeted receiver (12). By making the control-related quantities of interest at the transmitter (10) depend on the long-term statistics of the channel, the actual channel realizations are not needed for transmission control, e.g., for accurate Multiple-Input-Multiple-Output (MIMO) precoding. As such, the use of virtual channel realizations enables transmission control that approaches the "closed-loop" channel capacity that would be provided by full feedback of the (instantaneous) actual channel realizations, without requiring the overhead signaling burden that attends full feedback.

17. 发明申请

WO2008133580A1 MULTIPLE-INPUT, MULTIPLE-OUTPUT COMMUNICATION SYSTEM WITH REDUCED FEEDBACK 审中-公开
标题翻译：多输入多输出通信系统，减少反馈
公开(公告)号：WO2008133580A1
公开(公告)日：2008-11-06
申请号：PCT/SE2008/050317
申请日：2008-03-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： ZANGI, Kambiz , KRASNY, Leonid
IPC分类号： H04B7/06
CPC分类号： H04B7/0417 , H04B7/043 , H04B7/0634 , H04B7/0691
摘要： In MIMO systems, two or more transmit signals are transmitted from different antenna clusters having one or more transmit antennas each. A precoding circuit weight the transmit signals transmitted from each transmit antenna using a common set of frequency independent antenna weights for all antenna clusters. The antenna weights are computed based on correlations between transmit antennas in the same antenna cluster.
摘要翻译：在MIMO系统中，从具有一个或多个发射天线的不同天线簇发射两个或更多个发射信号。预编码电路使用对于所有天线簇的共用的一组独立于频率的天线权重对从每个发射天线发射的发射信号进行加权。基于相同天线簇中的发射天线之间的相关性来计算天线权重。

18. 发明申请

WO2009011652A1 ADAPTIVE COMPRESSION OF CHANNEL FEEDBACK BASED ON SECOND ORDER CHANNEL STATISTICS 审中-公开
标题翻译：基于第二订单通道统计的信道反馈自适应压缩
公开(公告)号：WO2009011652A1
公开(公告)日：2009-01-22
申请号：PCT/SE2008/050865
申请日：2008-07-11
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： HUI, Dennis , KRASNY, Leonid
IPC分类号： H04L1/00
CPC分类号： H04L1/0026 , H04L1/0019 , H04L1/0029 , H04L1/003
摘要： A method of variable rate vector quantization reduces the amount of channel state feedback. Channel coefficients of a communication channel are determined and second order statistics (e.g. Variances) of the channel taps are computed). Bit allocation for the channel taps are determined based on the coefficients statistics. The channel taps are individually quantized at rates determined based on said bit allocations.
摘要翻译：可变速率矢量量化的方法减少了信道状态反馈的量。确定通信信道的信道系数，并且计算信道抽头的二阶统计量（例如，变化）。基于系数统计确定信道抽头的位分配。以基于所述位分配确定的速率单独地量化信道抽头。

19. 发明申请

WO2009031966A2 METHOD AND APPARATUS FOR LINEARLY PRECODING DOWNLINK TRANSMISSIONS TO REDUCE TEMPORAL VARIATIONS IN INTERFERENCE 审中-公开
标题翻译：用于线性预测下行链路传输以减少干扰中的时态变化的方法和装置
公开(公告)号：WO2009031966A2
公开(公告)日：2009-03-12
申请号：PCT/SE2008/050936
申请日：2008-08-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： ZANGI, Kambiz , KRASNY, Leonid , HUI, Dennis
CPC分类号： H04L5/0082 , H04L1/0015 , H04L5/0023 , H04L5/0058 , H04L25/03343 , H04W4/08 , H04W28/18 , H04W72/00
摘要： According to one or more method and apparatus embodiments taught herein, network base stations (10) reduce temporal variations in the interference perceived by mobile stations (12) operating within the network (60) by slowing down the rate at which they change or otherwise update the linear precoding settings applied to their transmitted Orthogonal Frequency Division Multiplex (OFDM) signals in comparison to the rate at which the base stations (10) perform link adaptation. That is, the precoding-related component of measured interference (e.g., other-cell interference) at the mobile stations (12) is made quasi-stationary with respect to channel quality reporting and link adaptation intervals by fixing the precoding settings used by each base station (10) over time intervals substantially longer than the channel reporting/link adaptation intervals.
摘要翻译：根据本文教导的一个或多个方法和装置实施例，网络基站（10）通过减慢其改变或以其他方式更新的速率来减少在网络（60）内操作的移动站（12）感知到的干扰的时间变化与基站（10）进行链路自适应的速率相比，应用于其发射的正交频分复用（OFDM）信号的线性预编码设置。也就是说，通过固定每个基站使用的预编码设置，相对于信道质量报告和链路自适应间隔，在移动站（12）处的测量干扰（例如其他小区干扰）的预编码相关分量被准备为准静止站（10）的时间间隔大大长于信道报告/链路自适应间隔。

20. 发明申请

WO2015186026A1 EFFICIENT UPLINK TRANSMISSION OF CHANNEL STATE INFORMATION 审中-公开
标题翻译：高效率上行链路传输信道状态信息
公开(公告)号：WO2015186026A1
公开(公告)日：2015-12-10
申请号：PCT/IB2015/053990
申请日：2015-05-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： HUI, Dennis , CHENG, Jung-Fu , ZANGI, Kambiz , KRASNY, Leonid
IPC分类号： H04B7/04 , H04B7/06 , H04B7/08
CPC分类号： H04B7/0874 , H04B7/0606 , H04B7/0626 , H04B7/0691 , H04B7/0822 , H04L1/0029 , H04L5/0023 , H04L5/0048
摘要： A User Equipment, UE, (20) in a wireless communication network (10) includes a multiplicity of antennas (224), from which a subset of antennas is selected using a selection scheme synchronized to the network. A set of sub- carriers is selected from a plurality of sub-carriers using a selection scheme synchronized to the network. The UE receives a plurality of known reference symbols over the selected set of sub-carriers and through the selected subset of antennas. A frequency response for each selected sub-carrier is estimated over only the selected subset of antennas. The results are quantized and transmitted to the network on an uplink control channel.
摘要翻译：无线通信网络（10）中的用户设备（UE）（20）包括多个天线（224），使用与网络同步的选择方案从中选择天线子集。使用与网络同步的选择方案，从多个子载波中选择一组子载波。 UE在所选择的一组子载波上并通过所选择的天线子集接收多个已知参考符号。每个选择的子载波的频率响应仅在选定的天线子集上估计。结果被量化并在上行链路控制信道上传送到网络。

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