公开(公告)号：US20150085769A1

公开(公告)日：2015-03-26

申请号：US14385954

申请日：2012-03-21

申请人： Stefan Parkvall ,  David Astely ,  Erik Dahlman ,  Pal Frenger

发明人： Stefan Parkvall ,  David Astely ,  Erik Dahlman ,  Pal Frenger

IPC分类号： H04W52/18

CPC分类号： H04W52/18 ,  H04W16/32 ,  H04W24/02 ,  H04W48/12 ,  H04W84/045

摘要： 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.

摘要翻译： 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

申请人： Stefan Parkvall ,  Ylva Jading ,  Erik Dahlman ,  David Astely

发明人： Stefan Parkvall ,  Ylva Jading ,  Erik Dahlman ,  David Astely

IPC分类号： H04W4/20

CPC分类号： H04W4/20 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/0053

摘要： 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.

摘要翻译： 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

申请人： David Astely ,  Stefan Parkvall ,  Per Johan Anders Nystrom

发明人： David Astely ,  Stefan Parkvall ,  Per Johan Anders Nystrom

IPC分类号： H04W4/00

CPC分类号： H04M9/025 ,  H04B7/2656 ,  H04L5/14 ,  H04W72/04 ,  H04W72/1263

摘要： 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.

摘要翻译： 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

申请人： David Astely ,  George Jöngren ,  Muhammad Imadur Rahman

发明人： David Astely ,  George Jöngren ,  Muhammad Imadur Rahman

IPC分类号： H04B7/02

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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08675632B2

公开(公告)日：2014-03-18

申请号：US13382035

申请日：2009-07-10

申请人： Robert Baldemair ,  David Astely ,  Bo Göransson ,  George Jongren

发明人： Robert Baldemair ,  David Astely ,  Bo Göransson ,  George Jongren

IPC分类号： H04J3/24

CPC分类号： H04B7/0413 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0092 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2613

摘要： The present disclosure relates to signalling of reference signals for Multi Input Multi Output (MIMO) transmission schemes. A method embodiment for generating reference signals for use between a mobile terminal 10 and an access node 20 in a cellular communication network 100 comprises receiving, by the mobile terminal 10, a cyclic shift set indicator; selecting, from a group of cyclic shift sets, a cyclic shift set based on the received cyclic shift set indicator, each cyclic shift set comprising at least two parameters each indicating a cyclic shift; and generating, based on at least two parameters of the selected cyclic shift set, at least two orthogonal reference signals for at least two layers of a Single User Spatial Multiplexing transmission scheme to be simultaneously transmitted. A further method embodiment comprises selecting, from a plurality of groups of cyclic shift sets, a group of cyclic shift sets based on at least one of a transmission rank, being the number of layers to be simultaneously transmitted, and a number of configured antennas of the mobile terminal 10.

摘要翻译： 本公开涉及用于多输入多输出（MIMO）传输方案的参考信号的信令。 用于产生在蜂窝通信网络100中的移动终端10和接入节点20之间使用的参考信号的方法实施例包括：由移动终端10接收循环移位设置指示符; 从循环移位组的组中选择基于所接收的循环移位设置指示符的循环移位集合，每个循环移位集包括至少两个指示循环移位的参数; 以及基于所选择的循环移位集合的至少两个参数，生成用于要同时发送的单用户空间复用传输方案的至少两层的至少两个正交参考信号。 另一方法实施例包括从多个循环移位组组中选择一组循环移位组，所述循环移位组基于以下中的至少一个：作为要同时发送的层的数量的传输等级和多个配置的天线 移动终端10。

公开(公告)号：US08654027B2

公开(公告)日：2014-02-18

申请号：US13320802

申请日：2009-05-27

申请人： Sven Oscar Petersson ,  David Astely ,  Bjorn Gunnar Johannisson

发明人： Sven Oscar Petersson ,  David Astely ,  Bjorn Gunnar Johannisson

IPC分类号： H01Q21/00

CPC分类号： H01Q1/246 ,  H01Q25/02

摘要： An antenna arrangement (200, 300, 400) with antenna units (220, 230) comprising an input port (201, 202), a power divider (202, 204) for dividing an input signal into a major and a minor part with a ratio 11, a network (211, 216) with a sum input port, a difference input port, and first and second output ports, first (215, 217) and second antenna (214, 218) elements of a first and a second polarization. Signals to the sum input port are output with a first relation between them and signals to the difference input port are output with a second phase relation. The antenna units are arranged so that the major part of an input signal is connected to the sum port of a network and the minor part of an input signal is connected to the difference port of another network, and the first and second output ports of a network are connected to first and second adjacent antenna elements of the same polarization.

摘要翻译： 一种具有天线单元（220,230）的天线布置（200,300,400），包括输入端口（201,202），功率分配器（202,204），用于将输入信号分成主要和次要部分 比例11，具有和输入端口，差分输入端口以及第一和第二输出端口的网络（211,216），第一和第二极化的第一（215,217）和第二天线（214,218）元件 。 输出到和输入端口的信号以它们之间的第一关系输出，并且到差分输入端口的信号以第二相位关系输出。 天线单元被布置成使得输入信号的主要部分连接到网络的和端口，并且输入信号的次要部分连接到另一网络的差分端口，并且第一和第二输出端口 网络连接到相同极化的第一和第二相邻天线元件。

公开(公告)号：US20130310059A1

公开(公告)日：2013-11-21

申请号：US13640337

申请日：2012-07-30

申请人： Stefan Parkvall ,  David Astely ,  Erik Dahlman ,  David Hammarwall ,  Bengt Lindoff ,  Stefano Sorrentino ,  Leif Wilhelmsson

发明人： Stefan Parkvall ,  David Astely ,  Erik Dahlman ,  David Hammarwall ,  Bengt Lindoff ,  Stefano Sorrentino ,  Leif Wilhelmsson

IPC分类号： H04W72/04

CPC分类号： H04W72/1231 ,  H04W52/143 ,  H04W52/244 ,  H04W72/0446 ,  Y02D70/00

摘要： In a heterogeneous cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, the data transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node.

摘要翻译： 在异构小区部署中，移动终端可能需要在微微节点正在使用相同的频率或频率集合来传送移动终端的用户数据的同时从宏节点接收控制数据传输。 这可能导致有问题的干扰情况。 根据本发明的几个实施例，使用两种一般方法中的至少一种来减轻上述干扰情况。 在第一种方法中，微微节点的传输功率在一些时间间隔内减小，从而将干扰降低到可能从宏节点接收的水平。 在一些可能与第一种方法组合的第二种方法中，从宏节点发送的数据由微微节点提供，单独或与宏节点组合。

公开(公告)号：US08588845B2

公开(公告)日：2013-11-19

申请号：US12991629

申请日：2009-01-28

申请人： Stefan Parkvall ,  Johan Torsner ,  Michael Meyer ,  Mats Sågfors ,  Robert Baldemair ,  David Astely ,  Henning Wiemann

发明人： Stefan Parkvall ,  Johan Torsner ,  Michael Meyer ,  Mats Sågfors ,  Robert Baldemair ,  David Astely ,  Henning Wiemann

IPC分类号： H04M1/00

CPC分类号： H04L1/1635 ,  H04L5/0053 ,  H04L5/0094

摘要： According to the present invention, a receiving node of a telecommunications network (20) (e.g. a radio base station (22) in uplink, or a mobile terminal (24) in downlink) transmits a single acknowledgement message to a transmitting node (e.g. a mobile terminal (24) in uplink, or a radio base station (22) in downlink) in respect of signals received over a plurality of frequency-aggregated carriers (component carriers) (10) between the transmitting and receiving nodes. If all signals are decoded correctly in the receiving node, a positive acknowledgement message (ACK) is sent to the transmitting node; if not all signals are decoded correctly, a negative acknowledgement message (NACK) is sent, or no acknowledgement message is sent. In this way, a single acknowledgement message can be sent for signals received over multiple carriers. The acknowledgement message can have the same format as legacy standards (for example, as specified in Release 8 of the 3GPP specifications), providing compatibility with existing equipment. The number of messages is also reduced compared with the straightforward approach of transmitting individual acknowledgement messages per component carrier.

摘要翻译： 根据本发明，电信网络（20）（例如，上行链路中的无线电基站（22）或下行链路中的移动终端（24））的接收节点向发送节点（例如， 关于在发送节点和接收节点之间的多个频率聚合载波（分量载波）（10）上接收的信号，上行链路中的移动终端（24）或下行链路中的无线电基站（22）。 如果所有信号在接收节点中被正确地解码，则肯定确认消息（ACK）被发送到发送节点; 如果不是全部信号被正确地解码，则发送否定确认消息（NACK），或者不发送确认消息。 以这种方式，可以针对在多个载波上接收的信号发送单个确认消息。 确认消息可以具有与传统标准相同的格式（例如，如3GPP规范的版本8中所规定），提供与现有设备的兼容性。 与每个分量载波发送各个确认消息的简单方法相比，消息的数量也减少了。

公开(公告)号：US08559557B2

公开(公告)日：2013-10-15

申请号：US13120699

申请日：2008-09-24

申请人： Yang Hu ,  David Astely ,  Jingyi Liao

发明人： Yang Hu ,  David Astely ,  Jingyi Liao

IPC分类号： H03K9/00

CPC分类号： H04L1/0029 ,  H04L1/0073 ,  H04L1/0079 ,  H04L1/1607

摘要： Methods of transmitting and receiving information in a telecommunications network are described. A method of transmitting, for example, includes identifying a message for transmission, the message selected from a plurality of predetermined messages, and selecting a code combination from a set of codes combinations, each code combination corresponding to a predetermined message. Data is encoded with the selected code combination, and the encoded data is transmitted. A method of receiving may include receiving the signal including data encoded for transmission with the selected code combination, and decoding the signal to retrieve unencoded data, the decoding including determining with which code combination selected from the set of code combinations the data is encoded. The data is decoded, and the message for transmission is selected from the plurality of predetermined messages, wherein the message is selected based on the code combination with which the data was encoded.

摘要翻译： 描述在电信网络中发送和接收信息的方法。 例如，发送的方法包括识别用于发送的消息，从多个预定消息中选择的消息，以及从一组代码组合中选择代码组合，每个代码组合对应于预定消息。 数据用选择的代码组合进行编码，并且编码的数据被发送。 一种接收方法可以包括：接收包含利用所选代码组合进行编码以传输的数据的信号，以及对该信号进行解码以检索未编码的数据，该解码包括确定从编码数据的代码组合组中选择的哪个代码组合。 数据被解码，并且从多个预定消息中选择用于发送的消息，其中基于数据被编码的代码组合来选择消息。

公开(公告)号：US08537853B2

公开(公告)日：2013-09-17

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： H04J3/16

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。