公开(公告)号：US06173162B2

公开(公告)日：2001-01-09

申请号：US08874907

申请日：1997-06-16

申请人： Erik Dahlman ,  Johan Lundsjö ,  Mathias Johansson

发明人： Erik Dahlman ,  Johan Lundsjö ,  Mathias Johansson

IPC分类号： H04B100

CPC分类号： H04W52/325 ,  H04B7/2628 ,  H04W52/12 ,  H04W52/16 ,  H04W52/24

摘要： Methods of controlling the power levels of transmitted signals in telecommunication systems are described. A user may be assigned a plurality of radio bearers associated with a plurality of physical channels for communicating with a radiocommunication system. A fast power control loop monitors a reference channel and adjusts transmit power in accordance with an SIR target value. A plurality of slow power control loops adjust the SIR target value and also provide offset transmit power values associated with each physical channel to adapt the transmit powers in accordance with varying quality requirements between radio bearers.

摘要翻译： 描述了控制电信系统中发射信号功率电平的方法。 可以向用户分配与多个物理信道相关联的多个无线电承载，用于与无线电通信系统通信。 快速功率控制回路监视参考通道并根据SIR目标值调整发射功率。 多个慢功率控制环路调整SIR目标值并且还提供与每个物理信道相关联的偏移发射功率值，以根据无线电承载之间的不同质量要求来适配发射功率。

公开(公告)号：US09137075B2

公开(公告)日：2015-09-15

申请号：US11943440

申请日：2007-11-20

申请人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

发明人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04J11/00 ,  H04L7/00 ,  H04L27/26 ,  H04L27/00

CPC分类号： H04L27/2613 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/2626 ,  H04L27/2655 ,  H04L27/2666

摘要： A cellular communications system that utilizes OFDM in its radio interface is capable of utilizing either a first subcarrier spacing or a second subcarrier spacing. Which of these is presently in use is indicated by generating a first type of synchronization signal in response to the first subcarrier spacing presently being in use, and generating a second type of synchronization signal in response to the second subcarrier spacing presently being in use. Whichever of the first type of synchronization signal and the second type of synchronization signal was generated is transmitted. To distinguish between the first and second types of synchronization signals, a time domain representation of the second type of synchronization signal includes a plurality of instances of the first type of synchronization signal.

摘要翻译： 在其无线电接口中利用OFDM的蜂窝通信系统能够利用第一子载波间隔或第二子载波间隔。 当前正在使用中的哪一个当前正在使用时响应于当前正在使用的第一子载波间隔产生第一类型的同步信号，并且响应于当前正在使用的第二子载波间隔而产生第二类型的同步信号来指示。 发送第一类型的同步信号和第二类型的同步信号中的任何一个。 为了区分第一类型和第二类型的同步信号，第二类型的同步信号的时域表示包括第一类型的同步信号的多个实例。

公开(公告)号：US09094146B2

公开(公告)日：2015-07-28

申请号：US13159017

申请日：2011-06-13

申请人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman

发明人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman

IPC分类号： H04J11/00 ,  H04W28/18 ,  H04W48/08

CPC分类号： H04J11/0076 ,  H04J11/0069 ,  H04J11/0073 ,  H04W28/18 ,  H04W48/08

摘要： Timing parameters and an identity of a particular one of a number of cell groups are indicated in a signal transmitted in a cellular communication system having a radio frame in a physical layer, the radio frame comprising a number of time slots. In a known one of the time slots, a synchronization signal, S1, is transmitted that comprises a pair of sequences, Si%,Sj% (Si%≠Sj% arranged in a first ordering. In another known one of the time slots, a synchronization signal, S2 is transmitted that comprises the pair of sequences, Si%,Sj% arranged in a second ordering. The selected pair of sequences is uniquely identified with the particular cell group, and the first ordering of the sequences is used only for transmission in the known one of the time slots, and the second ordering of the sequences is used only for transmission in said another known one of the time slots.

摘要翻译： 在具有物理层中的无线电帧的蜂窝通信系统中发送的信号中指示多个小区组中的特定一个小区的定时参数和身份，该无线帧包括多个时隙。 在已知的一个时隙中，发送同步信号S1，该同步信号S1包括一对序列，Si％，Sj％（以第一次排序排列的Si％≠Sj％），在另一个已知的时隙中， 发送同步信号S2，其包括按照第二排序排列的一对序列Si％，Sj％，所选择的一对序列由特定小区组唯一地标识，序列的第一个排序仅用于 已知的一个时隙中的传输，并且序列的第二排序仅用于在所述另一个已知的时隙中的传输。

公开(公告)号：US20150156781A1

公开(公告)日：2015-06-04

申请号：US14412142

申请日：2012-07-04

申请人： Erik Dahlman ,  David Astely ,  Stefan Parkvall

发明人： Erik Dahlman ,  David Astely ,  Stefan Parkvall

IPC分类号： H04W72/08 ,  H04W72/04

CPC分类号： H04W72/08 ,  H04L47/2466 ,  H04W40/12 ,  H04W72/0406

摘要： It is presented a method performed in a first network node. The method comprises the steps of: receiving an uplink transmission from a mobile communication terminal; determining, based on content of the uplink transmission, information to be transmitted over a first communication channel when the content comprises control data intended for a second network node; transmitting the information over the first communication channel to the second network node when the information is to be transmitted over the first communication channel; and transmitting the information via a second communication channel, the second communication channel being physically separate from the first communication channel, when the information is not to be transmitted over the first communication channel. A corresponding network node is also presented.

摘要翻译： 呈现在第一网络节点中执行的方法。 该方法包括以下步骤：从移动通信终端接收上行链路传输; 当所述内容包括用于第二网络节点的控制数据时，基于所述上行链路传输的内容，确定要在第一通信信道上发送的信息; 当要在第一通信信道上发送信息时，将第一通信信道上的信息发送到第二网络节点; 以及当所述信息不通过所述第一通信信道发送时，经由第二通信信道发送所述信息，所述第二通信信道与所述第一通信信道物理上分离。 还提出了相应的网络节点。

公开(公告)号：US09036571B2

公开(公告)日：2015-05-19

申请号：US13319267

申请日：2009-05-08

申请人： Pål Frenger ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

发明人： Pål Frenger ,  Robert Baldemair ,  Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04W4/00 ,  H04W88/06 ,  H04L5/00 ,  H04W76/04

CPC分类号： H04W88/06 ,  H04L5/0037 ,  H04W76/28

摘要： A method in a radio network node for dynamic carrier mode switching is provided. The radio network node is comprised in a radio communications system. The radio network node is configured to operate in a legacy mode and is further configured to operate in a non legacy mode. At least one carrier is operated so that it switches (602) from non legacy mode to legacy mode. When operating the carrier in the legacy mode, the radio network node signals (603) with a user equipment. The user equipment operates in legacy mode, but can not operate in non legacy mode. The radio network node then operates the at least one carrier so that it switches (604) from legacy mode back to non legacy mode.

摘要翻译： 提供了一种用于动态载波模式切换的无线电网络节点中的方法。 无线电网络节点包括在无线电通信系统中。 无线电网络节点被配置为以传统模式操作，并且还被配置为以非传统模式操作。 操作至少一个载波，使得它将（602）从非传统模式切换到传统模式。 当在传统模式下操作载波时，无线电网络节点用用户设备发信号（603）。 用户设备以传统模式运行，但不能在非传统模式下运行。 无线电网络节点然后操作至少一个载波，使得它将（604）从传统模式切换回非传统模式。

公开(公告)号：US08902811B2

公开(公告)日：2014-12-02

申请号：US13379602

申请日：2010-06-16

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

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

IPC分类号： H04L7/00 ,  H04W92/00 ,  H04W56/00

CPC分类号： H04W56/0045 ,  H04L5/001 ,  H04W56/0065

摘要： The present invention relates to methods and arrangements in a base station and a user equipment for determining an uplink transmission timing correction for communication in a telecommunication system in which aggregation of component carriers is applied. The base station receives a signal from the user equipment on a uplink (UL) component carrier and measures the arrival time of the signal. A timing correction of the UL transmission timing based on the arrival time of the signal is determined. Thereupon the base station determines for which of the uplink component carriers used by the user equipment the timing correction is valid. The timing correction and the validity information is sent to the user equipment. The user equipment adjusts the UL transmission timing for each UL component carrier the timing correction is valid for.

摘要翻译： 本发明涉及在应用分量载波的聚合的电信系统中确定用于通信的上行链路传输定时校正的基站和用户设备中的方法和装置。 基站在上行链路（UL）分量载波上接收来自用户设备的信号，并测量信号的到达时间。 确定基于信号的到达时间的UL传输定时的定时校正。 因此，基站确定用户设备使用的哪个上行链路分量载波的定时校正是有效的。 定时校正和有效性信息被发送到用户设备。 用户设备调整定时校正有效的每个UL分量载波的UL传输定时。

公开(公告)号：US08559343B2

公开(公告)日：2013-10-15

申请号：US12816821

申请日：2010-06-16

申请人： Stefan Parkvall ,  David Astely ,  Erik Dahlman ,  Johan Nyström ,  Muhammad Imadur Rahman ,  Yngve Selén ,  Johan Sköld

发明人： Stefan Parkvall ,  David Astely ,  Erik Dahlman ,  Johan Nyström ,  Muhammad Imadur Rahman ,  Yngve Selén ,  Johan Sköld

IPC分类号： H04J3/00 ,  H04W4/00

CPC分类号： H04W72/0446 ,  H04B7/2643 ,  H04B7/2656 ,  H04L5/14 ,  H04W72/0406

摘要： The technology disclosed provides the ability for a subframe to be configured as a “flexible” subframe. As a result, at least three different types of subframes in a TDD system may be configured: a downlink (“DL”) subframe, an uplink (“UL”) subframe, and a “flexible” subframe. While the DL and UL subframes are preconfigured for each frame instance, the flexible subframes are dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another instance of the frame.

摘要翻译： 所公开的技术提供了将子帧配置为“灵活”子帧的能力。 结果，可以配置TDD系统中的至少三种不同类型的子帧：下行链路（“DL”）子帧，上行链路（“UL”）子帧和“灵活”子帧。 虽然对于每个帧实例预先配置了DL和UL子帧，但是在帧的另一个实例中，灵活子帧被动态地分配为帧的一个实例中的上行链路子帧和下行链路子帧。

公开(公告)号：US08351319B2

公开(公告)日：2013-01-08

申请号：US12595304

申请日：2008-04-03

申请人： Stefan Parkvall ,  David Astely ,  Erik Dahlman

发明人： Stefan Parkvall ,  David Astely ,  Erik Dahlman

IPC分类号： H04J11/00

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

摘要： The present invention relates to cellular radio communication and in particular to providing information on neighbor cells to enable terminals to perform neighbor cell measurements. In the prior art the terminal attempts to make neighbor cell measurements in a reference signal structure that is the same in the neighbor 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 neighboring 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 neighbor cells.

摘要翻译： 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：US08249007B2

公开(公告)日：2012-08-21

申请号：US12532166

申请日：2008-01-11

申请人： Ylva Jading ,  Erik Dahlman ,  Elias Jonsson ,  Stefan Parkvall

发明人： Ylva Jading ,  Erik Dahlman ,  Elias Jonsson ,  Stefan Parkvall

IPC分类号： H04W4/00 ,  H04W72/00 ,  H04L12/66

CPC分类号： H04W72/005 ,  H04J11/0093 ,  H04L5/0007 ,  H04L5/005 ,  H04W36/0055

摘要： A network unit of an own cell is operated in a radio communication system utilizing a radio interface that includes a radio frame made up of a number of sub-frames. The own cell serves one or more user equipments. Operation includes obtaining information about a scheduling of MBSFN data transmissions in one or more neighboring cells. The information thereby obtained is used to generate an information signal that, for a given sub-frame, enables the one or more user equipments to determine whether neighboring cell measurements can be performed using a unicast group of Orthogonal Frequency Division Multiple access (OFDM) symbols. The information signal is transmitted to the one or more user equipments, which can then use the information to determine how to locate cell-specific reference symbols when doing measurements of neighboring cells.

摘要翻译： 自身小区的网络单元在利用包括由多个子帧构成的无线帧的无线接口的无线通信系统中进行操作。 自己的小区服务于一个或多个用户设备。 操作包括获得关于在一个或多个相邻小区中的MBSFN数据传输的调度的信息。 由此获得的信息用于生成信息信号，对于给定的子帧，使一个或多个用户设备能够使用正交频分多址（OFDM）符号的单播组来确定是否可以执行相邻小区测量 。 信息信号被发送到一个或多个用户设备，然后可以在进行相邻小区的测量时使用该信息来确定如何定位小区特定参考符号。

公开(公告)号：US08238303B2

公开(公告)日：2012-08-07

申请号：US12324073

申请日：2008-11-26

申请人： Kambiz Zangi ,  Erik Dahlman ,  Dennis Hui

发明人： Kambiz Zangi ,  Erik Dahlman ,  Dennis Hui

IPC分类号： H04J3/00

CPC分类号： H04L5/0051 ,  H04L5/0007 ,  H04L5/0062 ,  H04L25/0202

摘要： The present invention provides a method of generating mutually orthogonal reference signals for different user terminals in and OFDM system that span different but overlapping subcarriers. The subcarriers allocated to the user terminals are divided into a plurality of non-overlapping subcarrier blocks. Each user terminal is then allocated one or more subcarrier blocks. For each subcarrier block, a user terminal is assigned a reference signal comprising a base reference sequence and a linear phase rotation. To ensure mutual orthogonality among all user terminals, user terminals allocated the same subcarrier block use the same base reference sequence with different linear phase rotations.

摘要翻译： 本发明提供了一种对跨越不同但重叠的子载波的不同用户终端和OFDM系统生成相互正交参考信号的方法。 分配给用户终端的副载波被划分成多个不重叠的副载波块。 然后，每个用户终端被分配一个或多个子载波块。 对于每个子载波块，向用户终端分配包括基本参考序列和线性相位旋转的参考信号。 为了确保所有用户终端之间的相互正交性，分配相同子载波块的用户终端使用具有不同线性相位旋转的相同的基准参考序列。