公开(公告)号：US20070047552A1

公开(公告)日：2007-03-01

申请号：US10596707

申请日：2003-12-22

Applicant: David Astely

Inventor： David Astely

IPC: H04L12/56

CPC classification number: H04W52/346 ,  H04B7/0619

Abstract: 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.

Abstract translation: 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

Applicant: Andrew Logothetis ,  David Astely

Inventor： Andrew Logothetis ,  David Astely

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

CPC classification number: H01Q3/2605 ,  H01Q1/246 ,  H01Q3/40 ,  H01Q25/002

Abstract: 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.

Abstract translation: 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：US09699765B2

公开(公告)日：2017-07-04

申请号：US13993474

申请日：2010-12-20

Applicant: Mats Sågfors ,  David Astely ,  Stefan Parkvall ,  Riikka Susitaival

Inventor： Mats Sågfors ,  David Astely ,  Stefan Parkvall ,  Riikka Susitaival

IPC: H04W72/02 ,  H04W48/12 ,  H04W8/18 ,  H04W28/06

CPC classification number: H04W8/183 ,  H04W28/06 ,  H04W48/12 ,  H04W72/02

Abstract: Method in a user equipment (120), a user equipment (120), a method in a base station (110) and a base station (110) for setting values of system parameters used within a wireless communication system (100). A first set of parameter values and an associated first tag is sent from the base station (110) to be received and stored by the user equipment (120). Further, a second set of parameter values and an associated second tag is sent from the base station (110) to be received and stored by the user equipment (120). When the base station (110) determine to change system information parameters, a command tag is sent, to be received by the user equipment (120), which apply the set of parameter values associated with the tag corresponding to the received command tag.

公开(公告)号：US09685702B2

公开(公告)日：2017-06-20

申请号：US13991990

申请日：2010-12-17

Applicant: Yang Hu ,  David Astely ,  Zhiheng Guo ,  Muhammad Imadur Rahman ,  Hai Wang ,  Ruiqi Zhang

Inventor： Yang Hu ,  David Astely ,  Zhiheng Guo ,  Muhammad Imadur Rahman ,  Hai Wang ,  Ruiqi Zhang

IPC: H01Q3/00 ,  G01S3/16 ,  H01Q3/40 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/10 ,  H04B7/04

CPC classification number: H01Q3/40 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0671 ,  H04B7/0686 ,  H04B7/0691 ,  H04B7/10

Abstract: The invention discloses a beamforming method for polarized antenna array consisting of a plurality of antenna elements, applied to single layer beamforming or dual layer beamforming, which includes the steps: determining (201) first beamforming weights for phase compensation among the antenna elements within each polarization direction; determining (202) second beamforming weights for phase compensation between equivalent channels of two polarization directions; and calculating (203) hybrid beamforming weights as product of the first beamforming weights and the second beamforming weights. A beamforming apparatus for polarized antenna array is also provided in the invention as well as a radio communication device and a system thereof. With the invention, the single-layer and dual-layer beamforming weights are determined for the cross-polarized antenna array without requiring full channel knowledge or the aid of PMI. Computation complexity is lowered and full power amplifier utilization can be achieved.

公开(公告)号：US09497004B2

公开(公告)日：2016-11-15

申请号：US12896993

申请日：2010-10-04

Applicant: David Astely ,  Robert Baldemair ,  Dirk Gerstenberger ,  Daniel Larsson ,  Lars Lindbom ,  Stefan Parkvall

Inventor： David Astely ,  Robert Baldemair ,  Dirk Gerstenberger ,  Daniel Larsson ,  Lars Lindbom ,  Stefan Parkvall

IPC: H04B7/00 ,  H04L5/00 ,  H04W8/24 ,  H04W28/26 ,  H04W48/16 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04L5/0053 ,  H04L5/0005 ,  H04L5/001 ,  H04L5/0094 ,  H04W8/24 ,  H04W28/26 ,  H04W48/16 ,  H04W72/0453 ,  H04W72/1273 ,  H04W88/02 ,  H04W88/08

Abstract: The invention is a method and apparatus for signaling uplink control information in a mobile communication network using carrier aggregation. The signaling mechanism allows the transmission, on a single uplink component carrier, of control information associated with a downlink transmission on multiple aggregated downlink component carriers. Semi-statically reserved resources for the transmission of control information on the uplink component carrier may be dynamically shared by user terminals that are assigned multiple downlink component carriers for downlink transmissions. Implicit or explicit resource indication can be used in combination with dynamic resource indication.

Abstract translation: 本发明是一种使用载波聚合在移动通信网络中信令上行链路控制信息的方法和装置。 信令机制允许在单个上行链路分量载波上传输与多个聚合的下行链路分量载波上的下行链路传输相关联的控制信息。 用于在上行链路分量载波上发送控制信息的半静态资源可以由为下行链路传输分配多个下行链路分量载波的用户终端动态共享。 隐式或显式资源指示可以与动态资源指示结合使用。

公开(公告)号：US09426753B2

公开(公告)日：2016-08-23

申请号：US14397711

申请日：2012-05-03

Applicant: Erik Eriksson ,  David Astely

Inventor： Erik Eriksson ,  David Astely

IPC: H04B7/00 ,  H04W52/14 ,  H04W52/22 ,  H04W52/38 ,  H04W52/24

CPC classification number: H04W52/146 ,  H04W52/226 ,  H04W52/242 ,  H04W52/243 ,  H04W52/386 ,  H04W72/0446 ,  H04W72/0473

Abstract: Some embodiments herein relate to method in a user equipment (10) for determining a transmit power to be used by the user equipment when transmitting in a radio communications network, which user equipment (10) is served by a radio network node (12,12′) in the radio communications network. The user equipment (10) receives, from the radio network node (12,12′), an indication indicating a set of power control parameters out of multiple sets of power control parameters, which multiple sets of power control parameters are stored at the user equipment (10). The user equipment (10) determines a transmit power based on the indicated set of power control parameters.

Abstract translation: 本文中的一些实施例涉及在用户设备（10）中用于确定在无线电通信网络中发送时由用户设备使用的发射功率的方法，哪个用户设备（10）被无线电网络节点（12,12 '）在无线电通信网络中。 用户设备（10）从无线电网络节点（12,12'）接收指示多组功率控制参数中的一组功率控制参数的指示，多组功率控制参数存储在用户 设备（10）。 用户设备（10）基于所指示的一组功率控制参数确定发射功率。

公开(公告)号：US20150085769A1

公开(公告)日：2015-03-26

申请号：US14385954

申请日：2012-03-21

Applicant: Stefan Parkvall ,  David Astely ,  Erik Dahlman ,  Pal Frenger

Inventor： Stefan Parkvall ,  David Astely ,  Erik Dahlman ,  Pal Frenger

IPC: H04W52/18

CPC classification number: H04W52/18 ,  H04W16/32 ,  H04W24/02 ,  H04W48/12 ,  H04W84/045

Abstract: A technique for operating a network node in a heterogeneously deployed network comprising network nodes of different nominal transmit powers and at least partially overlapping coverage areas is described. A method implementation of this technique comprises a step of operating the network node in a base mode in which the network node is configured to transmit terminal-specific demodulation reference signals for a first set of terminal devices. The method comprises the further step of selectively activating or deactivating operation of the network node in a Single Frequency Network (SFN) mode in which the network node is configured to transmit, for a second set of terminal devices, the same cell-specific reference nodes as another network node of the heterogeneously deployed network that has a larger nominal transmit power.

Abstract translation: 描述了在包括具有不同标称发射功率和至少部分重叠覆盖区域的网络节点的异构部署网络中操作网络节点的技术。 该技术的方法实现包括以基本模式操作网络节点的步骤，其中网络节点被配置为发送用于第一组终端设备的终端特定解调参考信号。 该方法包括以单频网络（SFN）模式选择性地激活或去激活网络节点的操作的步骤，其中网络节点被配置为针对第二组终端设备向相同的小区特定参考节点 作为具有较大额定发射功率的异构部署网络的另一网络节点。

公开(公告)号：US08780798B2

公开(公告)日：2014-07-15

申请号：US12990404

申请日：2008-02-05

Applicant: Stefan Parkvall ,  Ylva Jading ,  Erik Dahlman ,  David Astely

Inventor： Stefan Parkvall ,  Ylva Jading ,  Erik Dahlman ,  David Astely

IPC: H04W4/20

CPC classification number: H04W4/20 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/0053

Abstract: Methods and devices for introducing enhanced signals into a wireless environment. The enhanced signals provide for functionality that is not specified in a communication standard corresponding to a standard of a legacy terminal. The enhanced signals can be utilized by a non-legacy terminal. The legacy terminal is incapable of processing the enhanced signals and is unable to detect the presence of the enhanced signals.

Abstract translation: 将增强信号引入无线环境的方法和设备。 增强信号提供在对应于传统终端的标准的通信标准中未指定的功能。 增强信号可以由非传统终端利用。 遗留终端不能处理增强的信号，并且不能检测出增强的信号的存在。

公开(公告)号：US08767697B2

公开(公告)日：2014-07-01

申请号：US13188493

申请日：2011-07-22

Applicant: David Astely ,  Stefan Parkvall ,  Per Johan Anders Nystrom

Inventor： David Astely ,  Stefan Parkvall ,  Per Johan Anders Nystrom

IPC: H04W4/00

CPC classification number: H04M9/025 ,  H04B7/2656 ,  H04L5/14 ,  H04W72/04 ,  H04W72/1263

Abstract: The invention discloses a method for a cellular communications system, in which traffic is sent in frames, each frame comprising a first number of subframes, with a second number of said subframes being available for at least either uplink or downlink traffic. At least one of said second number of subframes is made to comprise at least three parts, as follows: One part which is utilized for uplink traffic, One part which is utilized for downlink traffic, One part which is utilized as a guard period, with said guard period part being scheduled between the uplink and the downlink parts. The duration of at least two of said three parts may be varied to fit the current system need.

Abstract translation: 本发明公开了一种用于蜂窝通信系统的方法，其中业务以帧的形式发送，每帧包括第一数量的子帧，其中第二数量的所述子帧可用于至少上行链路或下行链路业务。 所述第二数量的子帧中的至少一个被制成包括至少三部分，如下：一部分用于上行链路业务，一部分用于下行链路业务，一部分被用作保护周期，具有 所述保护周期部分被调度在上行链路和下行链路部分之间。 可以改变所述三个部分中的至少两个的持续时间以适应当前的系统需要。

公开(公告)号：US08737507B2

公开(公告)日：2014-05-27

申请号：US13127176

申请日：2009-05-14

Applicant: David Astely ,  George Jöngren ,  Muhammad Imadur Rahman

Inventor： David Astely ,  George Jöngren ,  Muhammad Imadur Rahman

IPC: H04B7/02

CPC classification number: H04B7/0639 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0691 ,  H04L5/0023 ,  H04L5/005 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802

Abstract: Determining transmitter antenna weights at a base station having more available transmit antennas than the available number of reference signals can be performed by transmitting reference signals and receiving channel feedback data derived by a mobile terminal from the reference signals. The reference signals are each assigned to one of two or more antenna groupings, wherein at least a first one of the antenna groupings includes two or more transmit antennas, and transmitted using at least one transmit antenna from the corresponding antenna grouping. A first beam-forming vector for the first one of the antenna grouping is determined, and mapping the one or more data streams to the transmit antennas according to a final precoding matrix that depends on the channel feedback data and the first beam-forming vector is performed, to obtain a weighted transmit signal for each of the antennas.

Abstract translation: 可以通过从参考信号发送参考信号和接收由移动终端导出的信道反馈数据来确定具有比可用参考信号数更多的可用发射天线的基站的发射机天线权重。 每个参考信号被分配给两个或多个天线分组中的一个，其中天线分组中的至少第一天线分组包括两个或更多个发射天线，并且使用来自相应天线分组的至少一个发射天线发射。 确定天线分组中的第一个的第一波束形成向量，并且根据取决于信道反馈数据和第一波束形成向量的最终预编码矩阵将一个或多个数据流映射到发射天线 以获得每个天线的加权发射信号。