公开(公告)号：US20090207815A1

公开(公告)日：2009-08-20

申请号：US12307763

申请日：2007-07-04

申请人： Stefan Parkvall ,  Erik Dahlman ,  Walter Muller ,  Goran Rune

发明人： Stefan Parkvall ,  Erik Dahlman ,  Walter Muller ,  Goran Rune

IPC分类号： H04W72/04 ,  H04J3/00

CPC分类号： H04B7/2656 ,  H04W36/00 ,  H04W72/00 ,  H04W72/04 ,  H04W72/12

摘要： The present invention relates to methods and arrangements for improving the capabilities of an evolved Universal Terrestrial Radio Access Network, in particular for cases when more than one radio access network applying a time-division duplex transmission mode need to co-exist on a same carrier. The invention addresses further problems concerning an efficient allocation of uplink resources and resource allocation in a handover situation. The present invention assigns an attribute in form of a distinguishing value to the time slots used for the uplink and downlink transmission on said carrier such as to avoid scheduling of transmissions via a first radio access network in downlink or uplink time slots assigned to the second radio access network and to avoid scheduling of transmissions via the second radio access network in uplink time slots assigned for transmissions in the first radio access network.

摘要翻译： 本发明涉及用于改进演进的通用陆地无线电接入网络的能力的方法和装置，特别是在应用时分双工传输模式的多于一个无线电接入网络需要共同存在于相同载波上的情况下。 本发明解决了在切换情况下有效分配上行链路资源和资源分配的问题。 本发明以对于所述载波上的上行链路和下行链路传输的时隙为特征值分配属性，以避免在分配给第二无线电的下行链路或上行链路时隙中经由第一无线电接入网络调度传输 并且避免在分配给第一无线电接入网络中的传输的上行链路时隙中经由第二无线电接入网络调度传输。

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：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：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：US20120134284A1

公开(公告)日：2012-05-31

申请号：US13127854

申请日：2010-10-20

申请人： Erik Dahlman ,  Niklas Johansson ,  Stefan Parkvall

发明人： Erik Dahlman ,  Niklas Johansson ,  Stefan Parkvall

IPC分类号： H04W16/00 ,  H04W24/00

CPC分类号： H04W24/02 ,  H04W16/28 ,  H04W48/18 ,  H04W84/045 ,  H04W92/20

摘要： First network node 110 and method in the first network node 110 for configuring a second network node 120 to operate either in cell mode or in beam mode when communicating with a user equipment 130, 140. The method comprises obtaining information for determining the operative mode of the second network node 120, comparing the obtained information with a threshold value, determining the operative mode of the second network node 120, based on the made comparison, and configuring the second network node 120 in cell mode or in beam mode, in relation to the user equipment 130,140, according to the determined operative mode of the second network node 120. A user equipment 130, 140 and a method in a user equipment 130, 140 is also disclosed.

摘要翻译： 第一网络节点110和第一网络节点110中的方法，用于在与用户设备130,140通信时配置第二网络节点120以小区模式或波束模式操作。该方法包括：获得用于确定 第二网络节点120，将所获得的信息与阈值进行比较，基于所做的比较确定第二网络节点120的操作模式，并且以小区模式或以波束模式配置第二网络节点120相对于 用户设备130,140，其根据所确定的第二网络节点120的操作模式。还公开了用户设备130,140和用户设备130,140中的方法。

公开(公告)号：US08073454B2

公开(公告)日：2011-12-06

申请号：US12158480

申请日：2005-12-20

申请人： Stefan Parkvall ,  P{dot over (a)}l Frenger ,  Erik Dahlman ,  Jonas Pettersson

发明人： Stefan Parkvall ,  P{dot over (a)}l Frenger ,  Erik Dahlman ,  Jonas Pettersson

IPC分类号： H04W72/00

CPC分类号： H04W16/06 ,  H04W52/10 ,  H04W52/241 ,  H04W52/246 ,  H04W52/367 ,  H04W72/0426 ,  H04W72/082 ,  H04W84/042

摘要： A method for scheduling resources for uplink transmissions in a radio access network includes each of a plurality of access points (APs) placing its resources to the disposition of other APs and transmitting a blocking signal if it does not allow other APs to use any of its resources. The method includes a user terminal (UT) listening for blocking signals and an AP scheduling the UT on the AP's own resources and/or on resources belonging to one or more other APs.

摘要翻译： 一种用于在无线电接入网络中调度用于上行链路传输的资源的方法包括将其资源置于其他AP的配置中的多个接入点（AP）中的每一个，并且如果不允许其他AP使用其中任何一个，则发送阻塞信号 资源。 该方法包括：监听阻塞信号的用户终端（UT）和AP在AP自身资源和/或属于一个或多个其他AP的资源上调度UT。

公开(公告)号：US20110244850A1

公开(公告)日：2011-10-06

申请号：US13158895

申请日：2011-06-13

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： H04W4/00

CPC分类号： H04L27/2655 ,  H04J11/0069 ,  H04L27/2602 ,  H04L27/2675

摘要： For wireless networks that transmit synchronization signals allowing user equipment to synchronize to cells within the network and transmit reference signals allowing user equipment to determine cell identities, a method and apparatus taught herein advantageously link the synchronization signal sequences to the reference signal sequences according to a defined mapping. The linking simplifies the cell search process by allowing user equipment to determine cell identities based on mapping detected synchronization signal sequences to the corresponding reference signal or to the corresponding subset of reference signals in embodiments where there are more reference signal sequences than synchronization signal sequences. In at least one embodiment, the network is a 3G LTE network and at least the Primary Synchronization Signal (P-SyS) sequences are linked to the Downlink (DL) reference symbol sequences according to a defined mapping, thereby allowing to user equipment to determine cell identities from detected P-SyS sequences.

摘要翻译： 对于发送允许用户设备与网络中的小区同步并发送允许用户设备确定小区标识的参考信号的同步信号的无线网络，本文教导的方法和装置有利地将同步信号序列链接到参考信号序列， 映射。 该链接通过允许用户设备基于将检测到的同步信号序列映射到对应的参考信号或者在具有比同步信号序列更多的参考信号序列的参考信号序列的相应子集中来确定小区标识来简化小区搜索过程。 在至少一个实施例中，网络是3G LTE网络，并且至少主同步信号（P-SyS）序列根据定义的映射链接到下行链路（DL）参考符号序列，从而允许用户设备确定 来自检测到的P-SyS序列的细胞鉴定。