公开(公告)号：US20140064186A1

公开(公告)日：2014-03-06

申请号：US13881184

申请日：2012-12-17

申请人： Stephen Grant ,  Erik Dahlman ,  Andreas Höglund ,  Stefan Parkvall ,  Edgar Ramos ,  Yi-Pin Eric Wang

发明人： Stephen Grant ,  Erik Dahlman ,  Andreas Höglund ,  Stefan Parkvall ,  Edgar Ramos ,  Yi-Pin Eric Wang

IPC分类号： H04W52/26

CPC分类号： H04W52/265 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/325 ,  H04W52/386 ,  H04W52/40

摘要： A radio network controller, RNC, 614, and a method therein, for enhancing reception quality of transmissions on an uplink control channel from a user equipment, UE, 613 to a serving base station, BS, 610. The RNC, the UE and the serving BS are comprised in a communication system 600. The method comprises, when conditions for boosting the uplink control channel are fulfilled, determining a boosting factor based on a ratio of path gains of a channel from the UE to the serving BS and of a channel from the UE to a non-serving BS 611, respectively, which non-serving BS is comprised in the communications system. The method further comprises transmitting the determined boosting factor to the UE, whereby the reception quality of transmission on the uplink control channel from the UE to the serving BS is enhanced by the UE boosting the control channel by means of the boosting factor.

摘要翻译： 一种无线电网络控制器，RNC 614及其方法，用于增强从用户设备UE 613到服务基站BS 610的上行链路控制信道上的传输的接收质量。RNC，UE和 服务BS包括在通信系统600中。该方法包括：当满足用于升级上行链路控制信道的条件时，基于从UE到服务BS的信道的路径增益的比率和信道的确定提升因子 分别从UE到非服务BS 611，其中非服务BS包括在通信系统中。 该方法还包括将确定的升压因子发送给UE，由此UE通过升压因子来提升控制信道的上行控制信道的从UE到服务BS的接收传输质量。

公开(公告)号：US20130310059A1

公开(公告)日：2013-11-21

申请号：US13640337

申请日：2012-07-30

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

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

IPC分类号： H04W72/04

CPC分类号： H04W72/1231 ,  H04W52/143 ,  H04W52/244 ,  H04W72/0446 ,  Y02D70/00

摘要： 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.

摘要翻译： 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：US08542645B2

公开(公告)日：2013-09-24

申请号：US13119512

申请日：2009-08-28

申请人： Stefan Parkvall ,  Robert Baldemair ,  Erik Dahlman

发明人： Stefan Parkvall ,  Robert Baldemair ,  Erik Dahlman

IPC分类号： H04Q7/00

CPC分类号： H04L27/2636

摘要： The present disclosure relates to a technique for transmitting modulation symbols on multiple frequency resources. A method aspect of this technique includes applying a Discrete Fourier Transform (DFT) coding per set of modulation symbols of two or more sets of modulation symbols, wherein a first set of modulation symbols from the two or more sets of modulation symbols is transmitted on a set of frequency resources handled by the same power amplifier. Then, Orthogonal Frequency Division Multiplexing (OFDM) modulation is applied to the sets of DFT coded modulation symbols to output a first set of OFDM symbols for transmission on the set of frequency resources, and output another set of OFDM symbols for transmission on at least one additional frequency resource distinct from the set of frequency resources. Power amplification is then applied per set of frequency resources at the power amplifier.

摘要翻译： 本公开涉及一种用于在多个频率资源上发送调制符号的技术。 该技术的方法方面包括对每组调制符号的两组或更多组应用对每组调制符号的离散傅里叶变换（DFT）编码，其中来自两组或更多组调制符号的第一组调制符号在 由同一功率放大器处理的一组频率资源。 然后，将正交频分复用（OFDM）调制应用于DFT编码调制符号组，以输出第一组OFDM符号，用于频率资源集合上的传输，并输出另一组OFDM符号以在至少一个 附加频率资源与频率资源集不同。 然后在功率放大器上对每组频率资源施加功率放大。

公开(公告)号：US08526377B2

公开(公告)日：2013-09-03

申请号：US12934207

申请日：2008-09-03

申请人： Bengt Lindoff ,  Stefan Parkvall ,  Erik Dahlman

发明人： Bengt Lindoff ,  Stefan Parkvall ,  Erik Dahlman

IPC分类号： H04W4/00 ,  H04B7/005

CPC分类号： H04W52/0216 ,  H04W76/28 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/24 ,  Y02D70/25

摘要： Mechanisms to provide independent DRX (discontinuous reception) functionalities for individual carriers of a multi-carrier wireless network (200) are described. DRX is a higher layer functionality indicating which TTIs (transmission time intervals) a user equipment (220) needs to read for control signals. Operating in the DRX cycle allows the user equipment (220) to reduce battery consumption. A connection is established between a base station (210) and the user equipment (220) over a plurality of carriers, where for each carrier, an independent DRX cycle is established. The plurality of carriers include anchor carriers which can carry commands from the base station (210). The anchor carriers have shorter DRX cycles than the non-anchor carriers. When a large amount of download data is to be transferred, the DRX cycles of multiple carriers are overridden and used for transfer to achieve fast download rates. The override commands are sent from the base station (210) to the user equipment (220) prior to the transfer.

摘要翻译： 描述了为多载波无线网络（200）的各个载波提供独立的DRX（间歇接收）功能的机制。 DRX是指示用户设备（220）为控制信号需要读取哪些TTI（传输时间间隔）的较高层功能。 在DRX周期中操作允许用户设备（220）减少电池消耗。 在多个载波上在基站（210）和用户设备（220）之间建立连接，其中对于每个载波，建立独立的DRX周期。 多个载波包括可承载来自基站（210）的命令的锚载波。 锚载波具有比非锚载波更短的DRX周期。 当要传送大量的下载数据时，多个载波的DRX周期被覆盖并用于传输以实现快速下载速率。 覆盖命令在传输之前从基站（210）发送到用户设备（220）。

公开(公告)号：US20130094595A1

公开(公告)日：2013-04-18

申请号：US13703521

申请日：2010-06-30

申请人： Konstantinos Dimou ,  Erik Dahlman ,  Robert Baldemair

发明人： Konstantinos Dimou ,  Erik Dahlman ,  Robert Baldemair

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  H04L5/005 ,  H04L5/0053 ,  H04L25/0202 ,  H04L25/0228

摘要： The invention relates to a method in a user equipment for channel estimation, the user equipment communicating within a wireless communication system comprising at least two cells arranged in a layered structure, the at least two cells using at least partly overlapping bandwidth. The user equipment communicates with a base station of an underlaid cell of the layered structure, and the Select resource method comprises the steps of: selecting, from elements carrying CRSs among resource blocks scheduled for the user equipment in the underlaid cell, resource elements carrying cell specific reference symbols, wherein the resource blocks are within bandwidth used by the underlaid cell; and performing the channel estimation by utilizing the selected resource elements carrying cell specific selected resource reference symbols. The invention also relates elements carrying CRSs to user equipment implementing the method.

摘要翻译： 本发明涉及一种用于信道估计的用户设备中的方法，所述用户设备在无线通信系统内进行通信，所述无线通信系统包括以分层结构排列的至少两个小区，所述至少两个小区使用至少部分重叠的带宽。 用户设备与分层结构的底层小区的基站进行通信，选择资源方法包括以下步骤：从在下层小区中为用户设备调度的资源块中承载CRS的元素中选择携带小区的资源单元 特定参考符号，其中所述资源块在所述底层小区使用的带宽内; 以及通过利用携带小区特定的所选资源参考符号的所选择的资源元素来执行信道估计。 本发明还涉及携带CRS的元件到实现该方法的用户设备。

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。