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

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ) ,  FELTER, Stefan ,  MOLNAR, Karl, J. ,  KRASNY, Leonid

Inventor： FELTER, Stefan ,  MOLNAR, Karl, J. ,  KRASNY, Leonid

IPC: H04L1/00 ,  H04B7/04

CPC classification number: H04L1/20 ,  H04B17/336 ,  H04L1/0026

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2007075139A2

公开(公告)日：2007-07-05

申请号：PCT/SE2006/050526

申请日：2006-11-30

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WANG, Yi-Pin ,  CHENG, Jung-fu ,  GRANT, Stephen ,  KRASNY, Leonid ,  MOLNAR, Karl

IPC: H04B7/06 ,  H04B1/69

CPC classification number: H04B7/0691 ,  H04B7/0413 ,  H04J13/0003

Abstract: A control channel for MIMO users operating in conjunction with an HS- DSCH system shares channelization codes with an HS-SCCH control channel. MIMO control channel information can be signaled from a transmit antenna selected based on information produced by the intended recipient. The modulation format used by a MiMO control channel can be selected based on the number of antenna streams in the corresponding MIMO data transmission.

Abstract translation: 与HS-DSCH系统结合操作的MIMO用户的控制信道与HS-SCCH控制信道共享信道化码。 MIMO控制信道信息可以从根据预期接收者产生的信息选择的发射天线发出信号。 可以基于相应的MIMO数据传输中的天线流的数量来选择由MiMO控制信道使用的调制格式。

公开(公告)号：WO2007040456A3

公开(公告)日：2007-04-12

申请号：PCT/SE2006/050383

申请日：2006-10-05

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)

Inventor： KRASNY, Leonid ,  GRANT, Stephen ,  KARLSSON, Jonas, B. ,  MOLNAR, Karl ,  ZANGI, Kambiz

IPC: H04B7/06

Abstract: A mobile phone is described herein that has control (or at least partial control) over which virtual antenna (s) in one or more base stations should be used for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station (s); (2) uses the antenna subset list to select which virtual antenna (s) in the configuration of virtual antennas should be used for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station (s) /scheduling unit to use the selected virtual antenna (s) for transmissions.

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

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  ZANGI, Kambiz ,  KRASNY, Leonid

Inventor： ZANGI, Kambiz ,  KRASNY, Leonid

IPC: H04B7/08 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0413 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0244 ,  H04L27/2647

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2008147297A2

公开(公告)日：2008-12-04

申请号：PCT/SE2008/050078

申请日：2008-01-24

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： BALACHANDRAN, Kumar ,  KRASNY, Leonid

IPC: H04B7/06

CPC classification number: H04W52/267 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0617 ,  H04W24/02 ,  H04W52/146 ,  H04W52/241 ,  H04W52/34 ,  H04W72/0473

Abstract: A base station maximizes a uplink data transmission rate from multiple mobiles treated by the base station as a virtual single uplink transmitter. The base station identifies a set of mobile stations as a candidate transmitting set and determines a transmit power allowable from the mobile stations in the candidate transmitting set. A subset of those mobile stations in the candidate transmitting set is identified. Uplink data transmission rates are assigned and communicated to the subset of mobile stations in the candidate transmitting set so as to optimize a total number of bits processed by the base station associated with the uplink transmissions received from the subset of candidate mobile stations. The optimization may accomplish one or more objectives in addition to optimizing the total number of bits processed.

Abstract translation: 基站使由基站处理的多个移动台的上行链路数据传输速率最大化为虚拟单个上行链路发射机。 基站将一组移动站识别为候选发送集合，并确定候选发送集合中的移动台允许的发送功率。 识别候选发送集合中的那些移动站的子集。 分配上行链路数据传输速率并将其传送到候选发送集合中的移动站的子集，以便优化与从候选移动站的子集接收到的上行链路传输相关联的基站处理的比特的总数。 除了优化处理的总位数之外，优化可以实现一个或多个目标。

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

Applicant: Telefonaktiebolaget LM Ericsson (publ) ,  WANG, Yi-Pin ERIC ,  CHENG, Jung-Fu THOMAS ,  GRANT, Stephen ,  KRASNY, Leonid ,  MOLNAR, Karl J

Inventor： WANG, Yi-Pin ERIC ,  CHENG, Jung-Fu THOMAS ,  GRANT, Stephen ,  KRASNY, Leonid ,  MOLNAR, Karl J

IPC: H04B7/04 ,  H04L1/00

CPC classification number: H04L5/005 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0684 ,  H04B2201/70701 ,  H04J13/0003 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0618 ,  H04L2001/0093

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2007136337A3

公开(公告)日：2007-11-29

申请号：PCT/SE2007/050216

申请日：2007-04-04

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： MOLNAR, Karl James ,  CHENG, Jung-Fu ,  GRANT, Stephen, J. ,  KRASNY, Leonid ,  WANG, Yi-Pin Eric

IPC: H04L1/00 ,  H04L1/20

Abstract: A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance informatio that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations. Channel quality information can be generated by selecting channel quality metrics according to receiver input signal quality and a desired probability of meeting a defined performance requirement over a range of propagation channel realizations, or by selecting channel quality metrics according to receiver input signal quality and particularized propagation channel realizations.

公开(公告)号：WO2006132592A3

公开(公告)日：2006-12-14

申请号：PCT/SE2006/050186

申请日：2006-06-07

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)

Inventor： GRANT, Stephen ,  CHENG, Jung-Fu, Thomas ,  KRASNY, Leonid ,  MOLNAR, Karl, J. ,  WANG, Yi-Pin, Eric

IPC: H04B1/707

Abstract: A receiver reduces interference in a received symbol of interest attributable to an interfering symbol using knowledge of the symbol spreading codes. The receiver comprises a plurality of correlators generating despread values for the received symbol of interest and the interfering symbol, and a combiner to combine the despread values using combining weights calculated base on spreading code correlations between spreading codes for the received symbol of interest and the interfering symbol.

公开(公告)号：WO2005086369A1

公开(公告)日：2005-09-15

申请号：PCT/SE2005/000061

申请日：2005-01-21

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： GRANT, STEPHEN James ,  CHENG, Jung-Fu ,  KRASNY, Leonid ,  MOLNAR, KARL James ,  WANG, YI-PIN Eric

IPC: H04B1/707

CPC classification number: H04B1/707 ,  H04B2201/709727

Abstract: A receiver includes a receiver circuit that decodes multiple signals of interest contained in a composite received signal. The receiver comprises a plurality of successive signal detection stages to detect respective signals contained in the composite received signal. Each detection circuit comprises at least one Generalized RAKE combining circuit and generates a detected signal at an output. Each but the last stage further comprises a signal regeneration circuit that cancels the signal of interest detected by that stage from a stage input signal provided to the next stage such that successive detection of the signals of interest benefits from cumulative cancellation of the previously detected signals.

Abstract translation: 接收机包括对包含在复合接收信号中的感兴趣的多个信号进行解码的接收机电路。 接收机包括多个连续的信号检测级，以检测包含在复合接收信号中的各个信号。 每个检测电路包括至少一个通用RAKE组合电路，并在输出端产生检测信号。 除了最后阶段之外，每个除了最后阶段还包括信号再生电路，该信号再生电路从提供给下一级的级输入信号中消除由该级检测到的感兴趣的信号，使得感兴趣的信号的连续检测从先前检测到的信号的累积消除中获益。

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

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  CHENG, Jung-fu ,  WANG, Yi-Pin ,  GRANT, Stephen James ,  KRASNY, Leonid ,  MOLNAR, Karl James

Inventor： CHENG, Jung-fu ,  WANG, Yi-Pin ,  GRANT, Stephen James ,  KRASNY, Leonid ,  MOLNAR, Karl James

IPC: H04Q7/38

CPC classification number: H04W8/24 ,  H04W24/00

Abstract: 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.

Abstract translation: 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。