公开(公告)号：US20110170449A1

公开(公告)日：2011-07-14

申请号：US13061768

申请日：2008-09-02

申请人： Yu Qian ,  David Astely ,  Yang Hu ,  Lei Wan

发明人： Yu Qian ,  David Astely ,  Yang Hu ,  Lei Wan

IPC分类号： H04W24/00

CPC分类号： H04L1/0026 ,  H04B17/336 ,  H04L5/0007 ,  H04L5/006 ,  H04W72/085

摘要： A method is performed by a device in a wireless network. The method includes receiving a transmission that includes a wideband channel quality indicator, determining a received signal power estimate for each frequency band of a frequency domain, and determining an average interference-plus-noise based on the wideband channel quality indicator and the received signal power estimate. The method further includes determining a signal-to-interference-plus-noise ratio estimate for each frequency band based on the average interference-plus-noise and the received signal power estimate, and performing a communicative operation based on the signal-to-interference-plus-noise ratio estimate.

摘要翻译： 一种方法由无线网络中的设备执行。 该方法包括接收包括宽带信道质量指示符的传输，确定频域的每个频带的接收信号功率估计，以及基于宽带信道质量指示符和接收信号功率确定平均干扰加噪声 估计。 该方法还包括基于平均干扰加噪声和接收信号功率估计来确定每个频带的信号与干扰加噪声比估计，并且基于信号干扰来执行通信操作 - 噪声比估计。

公开(公告)号：US20100322100A1

公开(公告)日：2010-12-23

申请号：US12867494

申请日：2009-01-28

申请人： Lei Wan ,  David Astely ,  Muhammad Kazmi

发明人： Lei Wan ,  David Astely ,  Muhammad Kazmi

IPC分类号： H04W24/00

CPC分类号： H04W24/08 ,  H04B7/0413 ,  H04B7/0617 ,  H04J11/0093 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0053

摘要： The present invention ensures that the UEs are able to make use of all the available reference signals that can be used in a cell for performing UE measurements, estimations or demodulations. That is achieved by indicating on a downlink common or shared channel, the MIMO mode settings associated with a specific network node. The indicated MIMO mode settings explicitly or implicitly indicate available common reference signals and/or dedicated reference signals to be used for said UE measurements, estimations or demodulations, which implies that measurements, estimations or demodulations can be performed based on said received indication.

摘要翻译： 本发明确保了UE能够利用可以在小区中用于执行UE测量，估计或解调的所有可用的参考信号。 这是通过在下行链路公共或共享信道上指示与特定网络节点相关联的MIMO模式设置来实现的。 所指示的MIMO模式设置明确或隐含地指示可用于所述UE测量，估计或解调的可用的公共参考信号和/或专用参考信号，这意味着可以基于所述接收到的指示来执行测量，估计或解调。

公开(公告)号：US20100265854A1

公开(公告)日：2010-10-21

申请号：US12747593

申请日：2008-08-20

申请人： Robert Baldemair ,  David Astely

发明人： Robert Baldemair ,  David Astely

IPC分类号： H04J3/00

CPC分类号： H04W74/0833 ,  H04W74/004

摘要： The invention relates to devices and methods for transmitting data on a radio channel comprising to jointly encode (S4) a preamble format with a first random access configuration, forming an extended random access configuration. The extended random access configuration is then transmitted (S6) on the radio channel.

摘要翻译： 本发明涉及用于在无线电信道上传输数据的装置和方法，包括：用第一随机接入配置联合编码（S4）前导码格式，形成扩展的随机接入配置。 然后在无线电信道上发送（S6）扩展随机接入配置。

公开(公告)号：US20100099362A1

公开(公告)日：2010-04-22

申请号：US12522794

申请日：2008-02-06

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

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

IPC分类号： H04B17/00

CPC分类号： H04B17/24 ,  H04B17/21

摘要： A device system, computer medium and method for calibrating at least one impairment of a signal transmitted from a transmitting unit to a receiving unit, the method including receiving at the receiving unit at least two signals transmitted from the transmitting unit, estimating at the receiving unit, based on the received at least two signals, at least one parameter associated with transmit chain links between the transmitting unit and corresponding antennas of the transmitting unit, collecting the at least one parameter in a measurement report at the receiving unit, and transmitting the measurement report from the receiving unit for correcting the at least one impairment based on the at least one parameter.

摘要翻译： 一种用于校准从发送单元发送到接收单元的信号的至少一个损害的设备系统，计算机介质和方法，所述方法包括在接收单元处接收从发送单元发送的至少两个信号，在接收单元处估计 基于所接收的至少两个信号，与所述发送单元与所述发送单元的相应天线之间的发送链路链路相关联的至少一个参数，在所述接收单元处收集测量报告中的所述至少一个参数，以及发送所述测量 从所述接收单元报告基于所述至少一个参数来校正所述至少一个损伤。

公开(公告)号：US20100097964A1

公开(公告)日：2010-04-22

申请号：US12528344

申请日：2007-02-23

申请人： David Astely ,  Per Skillermark ,  Tobias Tynderfeldt ,  Erik Westerberg ,  Hannes Ekstrom

发明人： David Astely ,  Per Skillermark ,  Tobias Tynderfeldt ,  Erik Westerberg ,  Hannes Ekstrom

IPC分类号： H04W72/04 ,  H04J3/00

CPC分类号： H04B7/2656

摘要： The invention discloses a method (1100) for a cellular wireless access TDD system (100) with a base stations (120, 220) for respective cells (110, 210) in the system, where each cell can accommodate at least a first user terminal (130, 230). The user terminals can receive traffic from their base stations during a down link period, and can transmit traffic to their base stations (120, 220) during an up link period (UL). There is a first guard period (TDu) at the transition from down link to up link, and a second guard period (TUD) at the transition from up link to down link. The method comprises measuring the interference level in a second plurality (110, 210) of cells during part of the time between two consecutive down link periods, and varying the duration of said first and/or second guard period in said second plurality of cells (110, 210) according to the interference level.

摘要翻译： 本发明公开了一种用于蜂窝无线接入TDD系统（100）的方法（1100），该系统具有用于系统中的相应小区（110,210）的基站（120,220），其中每个小区可容纳至少第一用户终端 （130,230）。 用户终端可以在下行链路周期期间从其基站接收业务，并且可以在上行链路周期（UL）期间向其基站（120,220）传送业务。 在从下行链路到上行链路的过渡期间存在第一保护期（TDu），以及从上行链路到下行链路的转变的第二保护期（TUD）。 该方法包括在两个连续的下行链路周期之间的部分时间内测量第二多个（110,210）小区中的干扰电平，并改变所述第二多个小区中的所述第一和/或第二保护周期的持续时间（ 110,210）。

公开(公告)号：US07664533B2

公开(公告)日：2010-02-16

申请号：US10704158

申请日：2003-11-10

申请人： Andrew Logothetis ,  David Astely

发明人： Andrew Logothetis ,  David Astely

IPC分类号： H04M1/00

CPC分类号： H01Q3/2605 ,  H01Q1/246 ,  H01Q3/40 ,  H01Q25/002

摘要： An antenna array in a radio node includes multiple antenna elements for transmitting a wider beam covering a majority of a sector cell that includes a common signal and a narrower beam covering only a part of the sector cell that includes a mobile user-specific signal. Transmitting circuitry is coupled to the antenna array, and processing circuitry is coupled to the transmitting circuitry. The processing circuitry ensures the user-specific signal and the common signal in a mixed beam embodiment are in-phase and time-aligned at the antenna array. In a steered beam embodiment, the processing circuitry ensures the user-specific signal and the common signal are time-aligned and have a controlled phase difference when received at mobile stations in the sector cell. In both embodiments, distortions in the common signal and the user-specific signal associated with their conversion from baseband frequency to radio frequency are also compensated. And in the steered beam embodiment, beam forming weights are used not only to radiate a narrower beam to the desired mobile user but also to direct a wider common signal beam to reach all mobile users in the cell.

摘要翻译： 无线电节点中的天线阵列包括多个天线元件，用于发射覆盖包括公共信号的扇区小区的大部分的较宽波束，以及仅覆盖包括移动用户专用信号的扇区小区的一部分的较窄波束。 发射电路耦合到天线阵列，并且处理电路耦合到发射电路。 处理电路确保混合波束实施例中的用户特定信号和公共信号在天线阵列处是同相和时间对准的。 在转向光束实施例中，处理电路确保用户特定信号和公共信号是时间对准的，并且在扇区小区中的移动台处接收时具有受控的相位差。 在这两个实施例中，公共信号的失真以及与从基带频率到射频的转换相关联的用户特定信号也被补偿。 并且在转向束实施例中，波束形成权重不仅用于将较窄的波束辐射到期望的移动用户，而且还用于引导较宽的公共信号波束以到达小区中的所有移动用户。

公开(公告)号：US20090274234A1

公开(公告)日：2009-11-05

申请号：US12306132

申请日：2006-10-04

申请人： David Astely ,  Bo Göransson ,  Per Skillermark

发明人： David Astely ,  Bo Göransson ,  Per Skillermark

IPC分类号： H04B7/02

CPC分类号： H04B7/0626 ,  H04B7/043 ,  H04B7/0617 ,  H04B7/0684 ,  H04L1/20

摘要： A method of selecting at least one communication link in a wireless communication network is proposed, comprising the steps of transmitting from at least one transmitting node in the network a pilot signal from each of at least two transmitter antennas of the transmitting node, receiving the pilot signals from the at least two transmitter antennas in a receiving terminal, estimating, in the terminal, a covariance matrix of the channel, based on the pilot signals received, determining the pathloss for each antenna based on the covariance matrix, selecting one of at least two possible links for the communication between the terminal and the transmitting nodes. The terminal is enabled to measure on each transmitter antenna individually, which provides a better tool for link selection and cell selection.

摘要翻译： 提出了一种在无线通信网络中选择至少一个通信链路的方法，包括以下步骤：从网络中的至少一个发射节点发送来自发射节点的至少两个发射机天线中的每一个的导频信号，接收导频 来自接收终端中的至少两个发射机天线的信号，基于所接收的导频信号在终端中估计信道的协方差矩阵，基于协方差矩阵确定每个天线的路径损耗，至少选择一个 用于终端和发射节点之间的通信的两个可能的链路。 终端可以单独测量每个发射机天线，为链路选择和小区选择提供了更好的工具。

公开(公告)号：US07406336B2

公开(公告)日：2008-07-29

申请号：US10596688

申请日：2003-12-22

申请人： David Astely ,  Peter Larsson

发明人： David Astely ,  Peter Larsson

IPC分类号： H04M1/00 ,  H04B1/02

CPC分类号： H04B7/0632 ,  H04B7/0617 ,  H04L1/0026 ,  H04L27/261 ,  H04L27/2626

摘要： The present invention relates to beamforming in a multi-carrier multi-user communication system applying an adaptive method for determining transmit weights for the various antenna beams. A set of complex transmission weights is adapted in response to appropriate feedback information on transmission quality from receiving units in order to achieve a maximization of a function of said quality indicator and thus optimize the transmission of the pilot signal.

摘要翻译： 本发明涉及多载波多用户通信系统中的波束成形，其应用用于确定各种天线波束的发射权重的自适应方法。 响应于来自接收单元的传输质量的适当反馈信息来适配一组复传输权重，以便实现所述质量指示符的功能的最大化，并且因此优化导频信号的传输。

公开(公告)号：US20070047552A1

公开(公告)日：2007-03-01

申请号：US10596707

申请日：2003-12-22

申请人： David Astely

发明人： David Astely

IPC分类号： H04L12/56

CPC分类号： H04W52/346 ,  H04B7/0619

摘要： The present invention relates to methods in a communication system providing the steps of determining a set of spatial transport formats, and signalling a selected active set of transport formats to one or several mobile terminals. The transport formats are adjustable by means of adapting the parameters of their complex transmission weights and/or their transmission power by evaluating collected channel management information, e.g. feedback information received from the mobile terminals, in order to optimise the aggregate data throughput subject to quality and fairness requirements. Further the present invention allows to evaluate a plurality of feedback information received from the various mobile terminals, determining applicable data rates for each of the data streams associated to the transport formats, determining from said evaluation a scheduling scheme for scheduling data streams to said mobile terminals, and assigning applicable data rates to each of said scheduled data streams.

摘要翻译： 本发明涉及通信系统中的方法，该通信系统提供了确定一组空间传输格式的步骤，以及向一个或多个移动终端发送所选择的传输格式的有效集合。 传输格式可以通过调整其复杂传输权重的参数和/或其传输功率来评估所收集的信道管理信息，例如， 从移动终端收到的反馈信息，以便根据质量和公平性要求优化聚合数据吞吐量。 此外，本发明允许评估从各种移动终端接收的多个反馈信息，确定与传输格式相关联的每个数据流的适用数据速率，从所述评估中确定用于将数据流调度到所述移动终端的调度方案 并且将适用的数据速率分配给每个所述调度的数据流。

公开(公告)号：US20050101352A1

公开(公告)日：2005-05-12

申请号：US10704158

申请日：2003-11-10

申请人： Andrew Logothetis ,  David Astely

发明人： Andrew Logothetis ,  David Astely

IPC分类号： H01Q1/24 ,  H01Q3/26 ,  H01Q3/40 ,  H01Q25/00 ,  H04B7/06 ,  H04M1/00

CPC分类号： H01Q3/2605 ,  H01Q1/246 ,  H01Q3/40 ,  H01Q25/002

摘要： An antenna array in a radio node includes multiple antenna elements for transmitting a wider beam covering a majority of a sector cell that includes a common signal and a narrower beam covering only a part of the sector cell that includes a mobile user-specific signal. Transmitting circuitry is coupled to the antenna array, and processing circuitry is coupled to the transmitting circuitry. The processing circuitry ensures the user-specific signal and the common signal in a mixed beam embodiment are in-phase and time-aligned at the antenna array. In a steered beam embodiment, the processing circuitry ensures the user-specific signal and the common signal are time-aligned and have a controlled phase difference when received at mobile stations in the sector cell. In both embodiments, distortions in the common signal and the user-specific signal associated with their conversion from baseband frequency to radio frequency are also compensated. And in the steered beam embodiment, beam forming weights are used not only to radiate a narrower beam to the desired mobile user but also to direct a wider common signal beam to reach all mobile users in the cell.

摘要翻译： 无线电节点中的天线阵列包括多个天线元件，用于发射覆盖包括公共信号的扇区小区的大部分的较宽波束，以及仅覆盖包括移动用户专用信号的扇区小区的一部分的较窄波束。 发射电路耦合到天线阵列，并且处理电路耦合到发射电路。 处理电路确保混合波束实施例中的用户特定信号和公共信号在天线阵列处是同相和时间对准的。 在转向光束实施例中，处理电路确保用户特定信号和公共信号是时间对准的，并且在扇区小区中的移动台处接收时具有受控的相位差。 在这两个实施例中，公共信号的失真以及与从基带频率到射频的转换相关联的用户特定信号也被补偿。 并且在转向束实施例中，波束形成权重不仅用于将较窄的波束辐射到期望的移动用户，而且还用于引导较宽的公共信号波束以到达小区中的所有移动用户。