公开(公告)号：US08295869B2

公开(公告)日：2012-10-23

申请号：US12521942

申请日：2007-02-05

申请人： Jonas B. Karlsson ,  David Astely ,  Bo Göransson

发明人： Jonas B. Karlsson ,  David Astely ,  Bo Göransson

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H01Q21/24 ,  H01Q3/26 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/066 ,  H04B7/0671 ,  H04B7/0673 ,  H04B17/21 ,  H04B17/364

摘要： A method and apparatus of improving the performance of a mobile radio system (100) comprising at least one radio device (105, 120) having at least two transmission equipments (114) adapted to transmit radio signals within a frequency band is disclosed. The method comprises deriving (220) a relative time delay of the at least two transmission equipments based on at least two sub-band transmit weight vectors, wherein a sub-band transmit weight vector comprises weight vectors applicable to the at least two transmission equipments, respectively, in a sub-band of the frequency band.

摘要翻译： 公开了一种改进移动无线电系统（100）的性能的方法和装置，该移动无线电系统（100）包括至少一个无线电设备（105,120），该至少一个无线电设备具有适于在频带内发射无线电信号的至少两个传输设备（114）。 该方法包括基于至少两个子带发射权重向量导出（220）至少两个传输设备的相对时间延迟，其中子带发射权重向量包括可应用于至少两个传输设备的权重向量， 分别在频带的子带中。

公开(公告)号：US20120106471A1

公开(公告)日：2012-05-03

申请号：US13256595

申请日：2010-06-18

申请人： Ali Behravan ,  David Astely ,  George Jöngren

发明人： Ali Behravan ,  David Astely ,  George Jöngren

IPC分类号： H04W72/04

CPC分类号： H04W72/1289 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0092 ,  H04L5/0094 ,  H04L25/0224 ,  H04L27/2611 ,  H04W72/042 ,  H04W72/14 ,  H04W74/006

摘要： The present invention relates to methods and arrangements for providing a more flexible configuration of SRS transmission. This is achieved by dynamically triggering a mobile terminal to transmit SRS. Thus, embodiments of the invention allow dynamically trigged SRS in any uplink subframe, even without necessarily reserving resources semi-statically on cell level. This is done by signaling to the terminal whether the mobile terminal should leave the predefined uplink symbol empty for sounding reference signals or use it for data transmission. In case a terminal leaves the last symbol empty for sounding reference signals, there are two possibilities, either the UE shall transmit one or several reference signals from one or several antennas, or the terminal shall leave the last symbol blank since another terminal may be using the resource for sounding. Accordingly, in a specific embodiment, there are at least three different messages that can be conveyed to the terminal: use the predefined uplink symbol for data, leave it blank or use it for sounding reference signals.

摘要翻译： 本发明涉及用于提供更灵活的SRS传输配置的方法和装置。 这通过动态触发移动终端来发送SRS来实现。 因此，本发明的实施例允许在任何上行链路子帧中动态触发SRS，甚至不必在小区级别上半静态地保留资源。 这通过向终端发信号完成，移动终端是否应该将预定义的上行链路符号留空以用于探测参考信号或者将其用于数据传输。 在终端将最后一个符号留空以用于探测参考信号的情况下，存在两种可能性：UE应该从一个或多个天线发送一个或几个参考信号，或者终端应该将最后一个符号留空，因为另一个终端可能正在使用 侦听资源。 因此，在具体实施例中，存在可以传送到终端的至少三个不同的消息：使用预定义的上行链路符号用于数据，将其留空或用于探测参考信号。

公开(公告)号：US20120099439A1

公开(公告)日：2012-04-26

申请号：US13381026

申请日：2010-06-29

申请人： Robert Baldemair ,  Ylva Jading ,  Erik Dahlman ,  David Astely

发明人： Robert Baldemair ,  Ylva Jading ,  Erik Dahlman ,  David Astely

IPC分类号： H04W72/04 ,  H04W24/00

CPC分类号： H04W72/1289 ,  H04L5/0044 ,  H04L5/0094 ,  H04L5/0096 ,  H04W24/10

摘要： Methods and user equipment are provided for activation of downlink component carriers. Even though configured to monitor multiple component carriers, a user equipment unit does not start to monitor them immediately, but instead monitors only one or a few carriers initially. Once a downlink scheduling assignment is received, the user equipment unit will then monitor additional component carriers. After one or more subframes where the user equipment unit is not scheduled, the user equipment unit returns to its original state where it monitors one or a few carriers.

摘要翻译： 提供了用于激活下行链路分量载波的方法和用户设备。 即使配置为监视多个分量载波，用户设备单元也不会立即开始监视它们，而是最初只监控一个或几个运营商。 一旦接收到下行链路调度分配，用户设备单元将监视附加分量载波。 在用户设备单元未被调度的一个或多个子帧之后，用户设备单元返回其监视一个或几个载波的其原始状态。

公开(公告)号：US20110179332A1

公开(公告)日：2011-07-21

申请号：US13063324

申请日：2009-09-10

申请人： Tobias Rydén ,  David Astely ,  Johan Nilsson

发明人： Tobias Rydén ,  David Astely ,  Johan Nilsson

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/1607 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1835

摘要： A method for automatic repeat request operation of a plurality of simultaneous automatic repeat request processes is disclosed. The method comprises receiving a transmission comprising at least one transport block; storing soft bits of the transport block in a buffer; and transmitting an automatic repeat request process signal, wherein the transmitting of the automatic repeat request process signal comprises one of: transmitting an acknowledgment signal if the transport block is determined to be properly received, transmitting a negative acknowledgement signal if the transport block is determined to contain an error, and transmitting a blocking indication signal if there is not room enough for the soft bits in the buffer. A transceiver arrangement and a computer program are also disclosed.

摘要翻译： 公开了一种用于多个同时自动重复请求过程的自动重复请求操作的方法。 该方法包括接收包括至少一个传输块的传输; 将传输块的软比特存储在缓冲器中; 以及发送自动重发请求处理信号，其中所述自动重发请求处理信号的发送包括以下之一：如果所述传输块被确定为正确接收，则发送确认信号;如果所述传输块被确定为 包含错误，并且如果没有足够的空间用于缓冲器中的软比特，则发送阻塞指示信号。 还公开了收发器装置和计算机程序。

公开(公告)号：US20110170562A1

公开(公告)日：2011-07-14

申请号：US12987128

申请日：2011-01-09

申请人： Yang Hu ,  David Astely ,  Xinghua Song ,  Jianfeng Wang

发明人： Yang Hu ,  David Astely ,  Xinghua Song ,  Jianfeng Wang

IPC分类号： H03K9/00 ,  H04J13/00

CPC分类号： H04L25/0226 ,  H04B7/0413 ,  H04B7/0678 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/1469 ,  H04L25/0204 ,  H04L25/0224

摘要： The prevent invention provides a method for performing channel estimation and detection in a Multiple-Input-Multiple-Output (MIMO) system, including: generating a demodulation reference signal, DM-RS, pattern for an extended cyclic prefix (CP); and estimating and detecting channel performance based on the generated DM-RS signal pattern. The DM-RS pattern supports from rank 1 to rank 8 patterns for 8 layer transmission. A transmitter, a receiver and a system thereof are also provided. The solution of the present invention improves channel estimation accuracy, saves channel estimation implementation and implementation complexity at terminals.

摘要翻译： 防止发明提供了一种在多输入多输出（MIMO）系统中执行信道估计和检测的方法，包括：产生用于扩展循环前缀（CP）的解调参考信号DM-RS，模式; 以及基于所生成的DM-RS信号模式来估计和检测信道性能。 DM-RS模式支持8层传输从1级到8级模式。 还提供发射机，接收机及其系统。 本发明的解决方案提高了信道估计精度，节省了终端的信道估计实现和实现复杂度。

公开(公告)号：US20110122819A1

公开(公告)日：2011-05-26

申请号：US12999863

申请日：2009-04-14

申请人： George Jöngren ,  David Astely

发明人： George Jöngren ,  David Astely

IPC分类号： H04W40/00

CPC分类号： H04L1/1822 ,  H04L1/1635 ,  H04L1/1812 ,  H04L1/1887

摘要： The present invention relates to methods and arrangements in a wireless communication system that enable the use of multi-codeword transmission and ACK/NACK compression with low performance loss. It also enables the use of advanced receivers of reasonable complexity. This is achieved by a solution based on the even distribution of the symbols of separately coded blocks of information bits over the available physical resources before transmission. Each physical resource will thus carry a mixture of symbols from all blocks of information bits, which results in a more similar channel quality for the blocks of information bits. A compressed ACK/NACK message corresponding to the blocks of information bits will thus be more accurate and the performance loss due to the ACK/NACK compression can be reduced.

摘要翻译： 本发明涉及无线通信系统中的方法和装置，其能够使用多码字传输和具有低性能损失的ACK / NACK压缩。 它还可以使用合理复杂的高级接收机。 这是通过基于在传输之前的可用物理资源上的分开编码的信息比特块的符号的均匀分布的解决方案来实现的。 因此，每个物理资源将携带来自所有信息比特块的符号的混合，这导致信息比特块的更相似的信道质量。 因此，与信息比特块相对应的压缩ACK / NACK消息将更加准确，并且可以减少由于ACK / NACK压缩引起的性能损失。

公开(公告)号：US20110075594A1

公开(公告)日：2011-03-31

申请号：US12934812

申请日：2008-09-15

申请人： Per Burström ,  Anders Furuskär ,  David Astely ,  Arne Simonsson

发明人： Per Burström ,  Anders Furuskär ,  David Astely ,  Arne Simonsson

IPC分类号： H04B7/00 ,  H04J3/00

CPC分类号： H04W52/146 ,  H04W52/10 ,  H04W52/242

摘要： A method performed in a wireless network includes receiving signals within a downlink frequency domain to enable channel estimation and measuring two or more signals only for two or more frequency bands of the downlink frequency domain that correspond to two or more uplink frequency bands associated with a scheduling grant or channel allocation that correspond to physical uplink channel frequency bands. The method also includes calculating path loss values for each of the frequency bands and calculating a total power based on the path loss values corresponding to the frequency bands. The method further includes determining a power allocation per frequency band based on the calculated total power to be applied to an uplink transmission and allocating the total power.

摘要翻译： 在无线网络中执行的方法包括：在下行链路频域内接收信号，以使能信道估计，并且仅测量与对应于与调度相关联的两个或多个上行链路频带的下行链路频域的两个或更多个频带 对应于物理上行链路信道频带的授权或信道分配。 该方法还包括计算每个频带的路径损耗值，并且基于对应于频带的路径损耗值来计算总功率。 该方法还包括基于所计算的上行链路传输的总功率来确定每个频带的功率分配并分配总功率。

公开(公告)号：US20110013536A1

公开(公告)日：2011-01-20

申请号：US12933301

申请日：2008-11-03

申请人： Sorour Falahati ,  David Astely ,  Robert Baldemair

发明人： Sorour Falahati ,  David Astely ,  Robert Baldemair

IPC分类号： H04L12/26

CPC分类号： H04L1/0073 ,  H04L1/0057 ,  H04L1/1628 ,  H04L1/1809 ,  H04L2001/125

摘要： Methods and apparatus for generating, transmitting, and processing error control information in a wireless communication system are disclosed. The error control information is designed so that the probability of a NACK-to-ACK error in transmission is lower than the probability for an ACK-to-NACK error. Multiple ACK/NACK bits are transmitted along with one or more side information bits that indicate the relative quantities of ACK values and NACK values among the ACK/NACK bits. In an exemplary method for generating error control information in a communication device, a plurality of ACK/NACK bits indicating whether corresponding transport blocks were successfully received are generated. One or more side information bits are formed as a function of the ACK/NACK bits, the side information bits indicating the relative quantities of ACK values and NACK values among the ACK/NACK bits, and transmitted along with the ACK/NACK bits to the remote communication node.

摘要翻译： 公开了一种在无线通信系统中生成，发送和处理错误控制信息的方法和装置。 错误控制信息被设计成使得传输中的NACK到ACK错误的概率低于ACK到NACK错误的概率。 多个ACK / NACK比特与一个或多个辅助信息比特一起发送，该比特信息表示ACK / NACK比特中的ACK值和NACK值的相对量。 在用于在通信设备中产生错误控制信息的示例性方法中，生成指示是否已成功接收相应传输块的多个ACK / NACK比特。 作为ACK / NACK位的函数形成一个或多个侧信息位，侧信息位指示ACK / NACK位之间的ACK值和NACK值的相对量，并与ACK / NACK位一起发送到 远程通讯节点。

公开(公告)号：US20100260079A1

公开(公告)日：2010-10-14

申请号：US12746899

申请日：2008-08-21

申请人： Robert Baldemair ,  David Astely

发明人： Robert Baldemair ,  David Astely

IPC分类号： H04W72/04 ,  H04J3/00

CPC分类号： H04W74/0833 ,  H04W74/004

摘要： The invention relates to methods and communication devices in a network comprising the steps of mapping (S2) and allocating a first random access resource to a first frequency in an uplink subframe of a radio frame, and transmitting (S4) an expression on the radio channel expressing mapping of the first random access resource to use in relation to at least one uplink subframe.

摘要翻译： 本发明涉及网络中的方法和通信设备，包括以下步骤：在无线帧的上行链路子帧中映射（S2）和分配第一随机接入资源至第一频率，并且在无线电信道上发送（S4）表达式 表示关于至少一个上行链路子帧使用的第一随机接入资源的映射。

公开(公告)号：US20090147743A1

公开(公告)日：2009-06-11

申请号：US12275883

申请日：2008-11-21

申请人： Stefan Parkvall ,  David Astely

发明人： Stefan Parkvall ,  David Astely

IPC分类号： H04W72/12

CPC分类号： H04L5/0094 ,  H04L1/1607 ,  H04W72/0446 ,  H04W72/1289

摘要： In a cellular system, transmissions are made in subframes which comprise subelements. The method is used for scheduling first and second channels in a subframe, and comprises: dividing the transmission resources for the first channel into a first set of resource groups, assigning the resource groups of the first set to subelements in the subframe in a predetermined fashion, assigning a symbol value to all subelements in the subframe which have not been assigned a resource groups of the first set, dividing the transmission resources for the second channel into a second set of resource groups, assigning the resource groups of the second set to subelements in the subframe by means of said symbol values.

摘要翻译： 在蜂窝系统中，传输是在包含子元素的子帧中进行的。 该方法用于在子帧中调度第一和第二信道，并且包括：将第一信道的传输资源划分为第一组资源组，以预定方式将第一集合的资源组分配给子帧中的子元素 向尚未分配第一组的资源组的子帧中的所有子元素分配符号值，将第二信道的传输资源划分为第二组资源组，将第二组的资源组分配给子元素 在子帧中借助于所述符号值。