公开(公告)号：US20130094389A1

公开(公告)日：2013-04-18

申请号：US13706417

申请日：2012-12-06

申请人： Stefan Parkvall ,  David Astely ,  Erik Dahlman

发明人： Stefan Parkvall ,  David Astely ,  Erik Dahlman

IPC分类号： H04W24/02 ,  H04W72/00

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 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.

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：US08363746B2

公开(公告)日：2013-01-29

申请号：US12864252

申请日：2008-01-25

申请人： Per Skillermark ,  Anders Furuskar ,  Erik Dahlman

发明人： Per Skillermark ,  Anders Furuskar ,  Erik Dahlman

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L5/0048 ,  H04B1/715 ,  H04B2001/7154 ,  H04L5/0012

摘要： The present invention increases the interference diversity in systems with the frame structure described above by using frequency hopping sequences that are selected considering characteristics of the channel relating to how the channel varies. According to a first embodiment, the channel characteristics relate to channel coherence time and according to a second embodiment, the channel characteristics relate to channel coherence bandwidth. For channels with long coherence times, the transmission hops back and forth several times during a TTI on the different available frequencies. For channels with wide coherence bandwidths, hopping may be performed between the frequency used by the reference signals and its neighbor frequencies. For channels with both long coherence times and wide coherence bandwidths, a combination may be used.

摘要翻译： 本发明通过使用考虑与频道变化相关的信道的特性来选择的跳频序列来增加具有上述帧结构的系统中的干扰分集。 根据第一实施例，信道特性涉及信道相干时间，并且根据第二实施例，信道特性涉及信道相干带宽。 对于具有长相干时间的信道，在不同可用频率下的TTI期间，传输来回跳动若干次。 对于具有宽相干带宽的信道，可以在参考信号使用的频率与其相邻频率之间执行跳频。 对于具有长相干时间和宽相干带宽的信道，可以使用组合。

公开(公告)号：US20110170471A1

公开(公告)日：2011-07-14

申请号：US13120034

申请日：2009-04-22

申请人： Erik Dahlman ,  Yiva Jading ,  Stefan Parkvall ,  Niklas Johansson

发明人： Erik Dahlman ,  Yiva Jading ,  Stefan Parkvall ,  Niklas Johansson

IPC分类号： H04H20/71

CPC分类号： H04W72/0446 ,  H04B7/14 ,  H04B7/15528 ,  H04B7/2606 ,  H04L25/24 ,  H04W4/06 ,  H04W72/1231 ,  H04W72/14 ,  H04W84/047

摘要： Method and apparatus for avoiding or reducing interference between transmissions from a donor eNB to a relay node and down link transmissions from the relay node to at least one mobile terminal, where the transmissions take place in overlapping frequency bands. In the method, at least one interruption is created in a transmission from the relay node to the mobile terminal(s), and during the created interruption, a transmission from the donor eNB is received. This may result in an improved reception of the transmission from the eNB in the relay node.

摘要翻译： 用于避免或减少从施主eNB到中继节点的传输之间的干扰的方法和装置，以及从中继节点到至少一个移动终端的下行链路传输，其中传输在重叠的频带中发生。 在该方法中，在从中继节点到移动终端的传输中创建至少一个中断，并且在创建的中断期间，接收到来自施主eNB的传输。 这可能导致来自中继节点中的eNB的传输的改进的接收。

公开(公告)号：US07961709B2

公开(公告)日：2011-06-14

申请号：US12522166

申请日：2007-12-07

申请人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman

发明人： Bengt Lindoff ,  Robert Baldemair ,  Erik Dahlman

IPC分类号： H04J3/06

CPC分类号： H04J11/0073 ,  H04B7/2681 ,  H04J11/0076 ,  H04J13/0077 ,  H04J13/107 ,  H04J13/16 ,  H04J2011/0009 ,  H04L27/2613 ,  H04W56/00 ,  H04W56/0085

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 arranged in a first ordering. In another known one of the time slots, a synchronization signal, S2, is transmitted that comprises a pair of sequences 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，发送一个同步信号S1，该同步信号包括按照第一次排序排列的一对序列。 在另一个已知的一个时隙中，发送包括以第二次排序排列的一对序列的同步信号S2。 所选择的一对序列被唯一地标识特定的小区组，并且该序列的第一次排序仅用于已知的一个时隙中的传输，并且该序列的第二次排序仅用于在所述另一个时隙中进行传输 已知的一个时隙。

公开(公告)号：US20110086644A1

公开(公告)日：2011-04-14

申请号：US12672357

申请日：2008-06-18

申请人： Erik Dahlman ,  Ylva Jading ,  Stefan Parkvall

发明人： Erik Dahlman ,  Ylva Jading ,  Stefan Parkvall

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04L5/0051 ,  H04W28/18 ,  H04W72/1268 ,  H04W88/08 ,  H04W99/00

摘要： The teachings presented herein propose a separation between the configuration of a sounding signal, and the initialization of the sounding signal. In other words, in at least one example embodiment proposed herein, a base station or other controlling entity separates the selection of sounding signal parameters (sounding signal configuration) and the signaling of that configuration information to a mobile terminal from the Ordering” or other initiation of sounding signal transmission. Thus, a mobile station may be sent sounding signal configuration information and subsequently be commanded (implicitly or explicitly) to begin sounding signal transmissions according to the previously provided configuration information.

摘要翻译： 本文提出的教导提出了探测信号的配置与探测信号的初始化之间的间隔。 换句话说，在本文中提出的至少一个示例实施例中，基站或其他控制实体将选择的探测信号参数（探测信号配置）和该配置信息的信令从订购“或其他启动 的发声信号传输。 因此，移动台可以被发送探测信号配置信息，随后根据先前提供的配置信息命令（隐式地或明确地）开始发声信号传输。

公开(公告)号：US20110075625A1

公开(公告)日：2011-03-31

申请号：US12926511

申请日：2010-11-23

申请人： Johan Nyström ,  Pàl Frenger ,  Erik Dahlman ,  Svante Signell ,  Göran Klang

发明人： Johan Nyström ,  Pàl Frenger ,  Erik Dahlman ,  Svante Signell ,  Göran Klang

IPC分类号： H04W4/00

CPC分类号： H04L5/0048 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/006 ,  H04L25/0226 ,  H04W16/02 ,  H04W16/10 ,  H04W16/12 ,  H04W52/325 ,  H04W72/08

摘要： A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.

摘要翻译： 一组不同的导频结构被设计用于不同环境和/或预期在小区中发生的不同用户行为。 估计用户的无线电条件。 然后，在用于其通信的资源空间中为每个用户分配一个区域（108A-E），该区域具有合适的导频配置。 在一个实施例中，预先为不同部分（110A-D）提供不同的导频结构，然后执行向用户的资源分配，以将估计的无线电条件与所提供的导频结构相匹配。 在另一个实施例中，首先执行分配，然后在所分配的资源空间区域内适配实际的导频结构以适应环境条件。

公开(公告)号：US20110065468A1

公开(公告)日：2011-03-17

申请号：US12161396

申请日：2007-01-18

申请人： Stefan Parkvall ,  Erik Dahlman ,  Lei Wan

发明人： Stefan Parkvall ,  Erik Dahlman ,  Lei Wan

IPC分类号： H04B7/00

CPC分类号： H04L5/0032 ,  H04B7/06 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0041 ,  H04W72/04 ,  H04W72/042 ,  H04W72/087 ,  H04W72/1263

摘要： The available transmission resources on a downlink-shared channel are divided into resource blocks, each resource block comprising a predetermined number of sub-carriers during a predetermined time period. The resource blocks are subdivided into localized resource blocks and distributed resource blocks. A user requiring sufficient resources can be allocated a plurality of said localized resource blocks. A user who would require only a small number of said localized resource blocks can instead be allocated subunits of a plurality of said distributed resource blocks.

摘要翻译： 将下行链路共享信道上的可用传输资源划分为资源块，每个资源块在预定时间段期间包括预定数量的子载波。 资源块被细分为局部资源块和分布式资源块。 可以分配多个所述本地化资源块的需要足够资源的用户。 仅需要少量所述本地化资源块的用户可以替代地分配多个所述分布式资源块的子单元。

公开(公告)号：US20110007728A1

公开(公告)日：2011-01-13

申请号：US12599089

申请日：2008-03-25

申请人： Ylva Jading ,  Erik Dahlman

发明人： Ylva Jading ,  Erik Dahlman

IPC分类号： H04B7/216

CPC分类号： H04L1/0072 ,  H04J11/0069 ,  H04L1/08 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0091 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2656 ,  H04L2001/0093

摘要： A broadcast control channel (BCH) transport block is communicated in a cellular communications system having a physical layer in which information is communicated in one or more frames, wherein the BCH transport block represents BCH information. This involves coding (901) the BCH transport block (1001, 1101) to generate M bits of coded information. Nframes segments of coded bits are formed (903) from the M bits of coded information, wherein the BCH information can be derived from any one of the Nframes segments of coded bits. A unique one of Nframes mapping functions is applied (905) to each of the Nframes segments of coded bits to produce Nframes mapped segments of coded bits. A different one of the Nframes mapped segments of coded bits is transmitted (907) in each of Nframes frames. This enables multi-frame timing to be determined even when fewer than all BCH segments are received.

摘要翻译： 在具有在一个或多个帧中传送信息的物理层的蜂窝通信系统中传送广播控制信道（BCH）传输块，其中，所述BCH传输块表示BCH信息。 这涉及编码（901）BCH传输块（1001,1101）以产生编码信息的M位。 从编码信息的M位形成编码位的N帧段（903），其中BCH信息可以从编码位的N帧段中的任一个导出。 将Nframe映射函数中唯一的一个应用（905）到编码比特的N帧段中的每一个，以产生编码比特的N帧映射段。 编码比特的N帧映射段中的不同的一个在N帧帧中被发送（907）。 这使得即使在接收到比所有BCH段少的情况下也能够确定多帧定时。

公开(公告)号：US20100315963A1

公开(公告)日：2010-12-16

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： H04L12/26 ,  H04W4/00

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：US20090258639A1

公开(公告)日：2009-10-15

申请号：US10583452

申请日：2004-12-02

申请人： Johan Nyström ,  Pal Frenger ,  Erik Dahlman ,  Stefan Parkvall

发明人： Johan Nyström ,  Pal Frenger ,  Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04W40/00

CPC分类号： H04W76/15 ,  H04B7/2606 ,  H04W76/14 ,  H04W88/04

摘要： A system and a method for wireless linking in a cellular communication system are disclosed such that a mobile station is maintained in simultaneous communication with at least a first node and a second node for access to the cellular communication system. Information going to and from the first node is not identical to the information going to and from the second node. In one embodiment the second node, or secondary access point is a relay node forwarding received information to and from the first node, or primary access point. In another embodiment the second node is another mobile station performing a direct mobile-to-mobile communication (MS-to-MS). In still an embodiment a first wireless link to the first node is for control information only. In still a further embodiment a second wireless link to the second node is only for communication of information from the mobile station or only for communication of information to the mobile station.

摘要翻译： 公开了一种用于蜂窝通信系统中的无线链接的系统和方法，使得移动台与至少第一节点和第二节点保持同时通信以访问蜂窝通信系统。 进出第一个节点的信息与进入第二个节点的信息不同。 在一个实施例中，第二节点或辅助接入点是将接收的信息转发到第一节点或主接入点的中继节点。 在另一个实施例中，第二节点是执行直接移动到移动通信（MS到MS）的另一个移动站。 在另一实施例中，到第一节点的第一无线链路仅用于控制信息。 在又一个实施例中，到第二节点的第二无线链路仅用于来自移动台的信息的通信，或仅用于向移动台通信信息。