公开(公告)号：US08675632B2

公开(公告)日：2014-03-18

申请号：US13382035

申请日：2009-07-10

Applicant: Robert Baldemair ,  David Astely ,  Bo Göransson ,  George Jongren

Inventor： Robert Baldemair ,  David Astely ,  Bo Göransson ,  George Jongren

IPC: H04J3/24

CPC classification number: H04B7/0413 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0092 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2613

Abstract: 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.

Abstract translation: 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

Applicant: Sven Oscar Petersson ,  David Astely ,  Bjorn Gunnar Johannisson

Inventor： Sven Oscar Petersson ,  David Astely ,  Bjorn Gunnar Johannisson

IPC: H01Q21/00

CPC classification number: H01Q1/246 ,  H01Q25/02

Abstract: 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.

Abstract translation: 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

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

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

IPC: H04W72/04

CPC classification number: H04W72/1231 ,  H04W52/143 ,  H04W52/244 ,  H04W72/0446 ,  Y02D70/00

Abstract: 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.

Abstract translation: 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

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

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

IPC: H04M1/00

CPC classification number: H04L1/1635 ,  H04L5/0053 ,  H04L5/0094

Abstract: 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.

Abstract translation: 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

Applicant: Yang Hu ,  David Astely ,  Jingyi Liao

Inventor： Yang Hu ,  David Astely ,  Jingyi Liao

IPC: H03K9/00

CPC classification number: H04L1/0029 ,  H04L1/0073 ,  H04L1/0079 ,  H04L1/1607

Abstract: 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.

Abstract translation: 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

Applicant: Sorour Falahati ,  David Astely ,  Robert Baldemair

Inventor： Sorour Falahati ,  David Astely ,  Robert Baldemair

IPC: H04J3/16

CPC classification number: H04L1/0073 ,  H04L1/0057 ,  H04L1/1628 ,  H04L1/1809 ,  H04L2001/125

Abstract: 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.

Abstract translation: 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：US08537688B2

公开(公告)日：2013-09-17

申请号：US12528344

申请日：2007-02-23

Applicant: David Astely ,  Per Skillermark ,  Tobias Tynderfeldt ,  Erik Westerberg ,  Hannes Ekström

Inventor： David Astely ,  Per Skillermark ,  Tobias Tynderfeldt ,  Erik Westerberg ,  Hannes Ekström

IPC: G01R31/08

CPC classification number: H04B7/2656

Abstract: 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.

Abstract translation: 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：US20130094389A1

公开(公告)日：2013-04-18

申请号：US13706417

申请日：2012-12-06

Applicant: Stefan Parkvall ,  David Astely ,  Erik Dahlman

Inventor： Stefan Parkvall ,  David Astely ,  Erik Dahlman

IPC: H04W24/02 ,  H04W72/00

CPC classification number: H04L5/005 ,  H04L5/0023 ,  H04L5/0094 ,  H04L25/0206 ,  H04L27/2613 ,  H04W24/02 ,  H04W48/12 ,  H04W48/20 ,  H04W72/005 ,  H04W72/042 ,  H04W88/08

Abstract: The present invention relates to cellular radio communication and in particular to providing information on neighbour cells to enable terminals to perform neighbour cell measurements. In the prior art the terminal attempts to make neighbour cell measurements in a reference signal structure that is the same in the neighbour cell as in the cell the terminal camps in. The present invention is based on the insight that the reference signal structure may differ between neighbouring cell for example in the situation of an MBSFN area that is restricted to a region of all cells of a radio network, or in the situation of TDD mode being applied there may be different regions with different allocation of sub-frames for transmission in the uplink and downlink directions. The present invention solves the problem by broadcast information in a cell indicative of the reference signal structure in neighbour cells.

Abstract translation: 蜂窝无线电通信技术领域本发明涉及蜂窝无线电通信，特别涉及提供关于相邻小区的信息以使得终端能够执行相邻小区测量。 在现有技术中，终端尝试在相邻小区中与终端驻留的小区中相同的参考信号结构中进行相邻小区测量。本发明基于以下认识：参考信号结构可以在 例如在限于无线网络的所有小区的区域的MBSFN区域的情况下，或者在应用TDD模式的情况下，可能存在具有不同的子帧分配的不同区域，用于在 上下行方向。 本发明通过表示相邻小区中的参考信号结构的小区中的广播信息来解决该问题。

公开(公告)号：US08379547B2

公开(公告)日：2013-02-19

申请号：US12467086

申请日：2009-05-15

Applicant: Yang Hu ,  David Astely ,  Jung-Fu Cheng ,  Sorour Falahati

Inventor： Yang Hu ,  David Astely ,  Jung-Fu Cheng ,  Sorour Falahati

IPC: H04B1/54 ,  H04L5/14

CPC classification number: H04W72/0413 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0053 ,  H04L5/0092 ,  H04L5/14

Abstract: In a method of operating a communication network (20) a time division duplex (TDD) frame (F) of information is communicated over a radio interface (32) between a wireless terminal (30) and a base station node (28). The method comprises the wireless terminal (30) receiving plural downlink (DL) subframes of the frame and, in response thereto, configuring a Physical Uplink Control Channel (PUCCH) channel to comprise up to four acknowledgements by using only two PUCCH channel resources and using PUCCH format 1a or PUCCH format 1b. In an example embodiment a PUCCH channel resource is specified by a sequence utilized for transmission of at least part of the PUCCH channel and a cyclical shift applied to the sequence. The two sequences of the respective two PUCCH resources are orthogonal, and the cyclical shift of the two PUCCH resources can be in a frequency domain, a time domain, or both the frequency domain and the time domain.

公开(公告)号：US20120120855A1

公开(公告)日：2012-05-17

申请号：US13354929

申请日：2012-01-20

Applicant: Johan Torsner ,  David Astely ,  Stefan Parkvall ,  Tobias Tynderfeldt

Inventor： Johan Torsner ,  David Astely ,  Stefan Parkvall ,  Tobias Tynderfeldt

IPC: H04J3/00

CPC classification number: H04L1/1854 ,  H04L1/1621

Abstract: Method and apparatus in a communication unit employing a wireless TDD or half duplex FDD transmission arrangement when communicating with a data sending party, for scheduling feedback reports for data blocks in received receive (RX) sub-frames, in transmit (TX) sub-frames available for transmission. An obtaining unit in the communication unit receives allocation parameters for the connection where the number of required feedback reports is greater than the number of allowed feedback reports. A scheduling unit in the communication unit then schedules feedback reports in available TX sub-frames according to a predetermined spreading rule also known by the data sending party, dictating that the feedback reports are spread out or distributed evenly over the available TX sub-frames. In this way, the number of feedback reports in a TX sub-frame can be reduced.

Abstract translation: 在与数据发送方进行通信时采用无线TDD或半双工FDD传输装置的通信单元中的方法和装置，用于在发送（TX）子帧中调度所接收的接收（RX）子帧中的数据块的反馈报告 可用于传输。 通信单元中的获取单元接收所需反馈报告的数量大于所允许的反馈报告数量的连接的分配参数。 然后，通信单元中的调度单元根据数据发送方也已知的预定扩展规则来调度可用TX子帧中的反馈报告，指示反馈报告在可用的TX子帧上均匀分布或均匀分布。 以这种方式，可以减少TX子帧中的反馈报告的数量。