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：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：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：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：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。

公开(公告)号：US20090041240A1

公开(公告)日：2009-02-12

申请号：US11835782

申请日：2007-08-08

申请人： Stefan Parkvall ,  Erik Dahlman ,  Tobias Tynderfeldt

发明人： Stefan Parkvall ,  Erik Dahlman ,  Tobias Tynderfeldt

IPC分类号： H04K1/00

CPC分类号： H04W72/0413 ,  H04W72/02 ,  H04W74/004 ,  H04W74/0833

摘要： The technology described in this case facilitates random access by a user terminal with a radio base station. A user terminal determines one of a first type of uplink scrambling sequences and generates a random access message using the determined one of the first type of uplink scrambling sequences. The random access message is transmitted to the base station. The user terminal receives from the base station a second, different type of uplink scrambling sequence and uses it for subsequent communication with the radio base station. For example, the first uplink scrambling sequences may be specifically associated with the radio base station's cell area or a random access radio channel associated with the radio base station, but they are not specifically assigned to any user terminal, and the second uplink scrambling sequence may be selected from a second set of uplink scrambling sequences specifically assignable to individual user terminals.

摘要翻译： 在这种情况下描述的技术有助于用无线电基站的用户终端的随机接入。 用户终端确定第一类型的上行链路扰频序列中的一个，并且使用所确定的第一类型的上行链路扰频序列来生成随机接入消息。 随机接入消息被发送到基站。 用户终端从基站接收第二种不同类型的上行加扰序列，并将其用于与无线基站的后续通信。 例如，第一上行链路扰频序列可以与无线电基站的小区区域或与无线电基站相关联的随机接入无线电信道具体地关联，但是它们没有被特别分配给任何用户终端，并且第二上行链路加扰序列可以 从可专用于各个用户终端的第二组上行链路扰频序列中选择。

公开(公告)号：US06907005B1

公开(公告)日：2005-06-14

申请号：US09621672

申请日：2000-07-24

申请人： Erik Dahlman ,  Stefan Parkvall

发明人： Erik Dahlman ,  Stefan Parkvall

IPC分类号： H04L1/18 ,  G01R31/08

CPC分类号： H04L1/1819 ,  H04L1/1803 ,  H04L1/187 ,  H04L1/1874 ,  H04L1/188

摘要： The present invention provides a flexible ARQ scheme. A communications channel is set up between a transmitter and a receiver. A value is selected for an ARQ parameter for data packets to be transmitted over the communications channel. The ARQ parameter value may be selected in accordance with a trade-off between a desired performance or goal, e.g., a specific throughput of data packets transmitted over the communications channel, and one or more communication resources required to support the desired performance or goal. An example of an ARQ parameter is a number of outstanding data packets to be acknowledged by the receiver before more packets can be sent to the receiver. Another parameter example is a delay associated with the ARQ scheme. In a preferred, non-limiting example embodiment, first and second ARQ parameter values are selected for a desired trade-off. Accordingly, a specific number of outstanding data packets to be acknowledged by the receiver and an acknowledgement or retransmission delay can be selected to achieve a desired performance, e.g., a desired throughput of data packets, at a particular resource cost. Because of the flexibility provided by the present invention, a communications device may set its own objectives for a particular connection based upon one or more performance requirements, communication resources, or other requirements.

摘要翻译： 本发明提供了一种灵活的ARQ方案。 在发射机和接收机之间建立通信信道。 为通过通信信道发送的数据包的ARQ参数选择一个值。 ARQ参数值可以根据所需性能或目标之间的折衷来选择，例如通过通信信道发送的数据分组的特定吞吐量，以及支持期望性能或目标所需的一种或多种通信资源。 ARQ参数的示例是在更多分组可以被发送到接收机之前由接收机确认的未完成数据分组的数量。 另一个参数示例是与ARQ方案相关联的延迟。 在优选的非限制性示例性实施例中，选择第一和第二ARQ参数值用于期望的权衡。 因此，可以选择要由接收机确认的特定数量的未完成数据分组以及确认或重传延迟，以便以特定资源成本实现期望的性能，例如期望的数据分组吞吐量。 由于本发明提供的灵活性，通信设备可以基于一个或多个性能要求，通信资源或其他要求为特定连接设置其自己的目标。

公开(公告)号：US06542736B1

公开(公告)日：2003-04-01

申请号：US09542984

申请日：2000-04-04

申请人： Stefan Parkvall ,  Erik Dahlman

发明人： Stefan Parkvall ,  Erik Dahlman

IPC分类号： H04Q700

CPC分类号： H04W28/20 ,  H04B7/02 ,  H04W16/24 ,  H04W16/28

摘要： A mobile terminal sends rapidly changing information relating to the downlink transmission of packet data from a base station sector to the mobile terminal at a higher rate on a fast channel. This rapidly changing information may include, for example, a current data transmission rate and/or a current base station sector identification. Information that changes more slowly, such as the identification of a base station to handle the mobile terminal communication, is communicated to the base station at a lower rate on a slow channel. The information received from the mobile terminal at the higher rate is used by the base station to request a particular sector (and preferably also a sector antenna) to transmit data to the mobile terminal and/or to adjust the current maximum data transmission rate to the mobile terminal. A mobile terminal may also make similar sector/rate requests from plural sectors at the same time as well as from plural sector antennas.

摘要翻译： 移动终端在快速信道上以更高的速率将与分组数据的下行链路传输有关的快速变化的信息从基站扇区发送到移动终端。 这种快速变化的信息可以包括例如当前数据传输速率和/或当前基站扇区标识。 变化较慢的信息，例如用于处理移动终端通信的基站的识别，以较慢的信道以较低的速率传送给基站。 以较高速率从移动终端接收的信息被基站用来请求特定扇区（并且优选地是扇区天线）向移动终端发送数据和/或将当前最大数据传输速率调整到 移动终端。 移动终端也可以从多个扇区天线同时进行来自多个扇区的类似的扇区/速率请求。

公开(公告)号：US09603101B2

公开(公告)日：2017-03-21

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： H04W4/00 ,  H04W52/18 ,  H04W24/02 ,  H04W16/32 ,  H04W48/12 ,  H04W84/04

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.