公开(公告)号：US20090109902A1

公开(公告)日：2009-04-30

申请号：US12301579

申请日：2006-05-19

申请人： Johan Axnas ,  Niklas Johansson ,  Johan Nystrom ,  Per Skillermark ,  Kai-Erik Sunell

发明人： Johan Axnas ,  Niklas Johansson ,  Johan Nystrom ,  Per Skillermark ,  Kai-Erik Sunell

IPC分类号： H04W40/02

CPC分类号： H04L27/2602 ,  H04L5/0012 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2613 ,  H04W48/08

摘要： The object of the present invention is to provide a mechanism for a more efficient carrier search. The object is achieved by a method for sending a signal in a first node. The first node communicates with a second node via radio communication, which radio communication is performed by multi carrier transmission. The first node uses a carrier, being associated with a frequency range. The method comprises the step of transmitting an end-marker signal within or close to the frequency range. The end-marker signal is intended to be received and used by the second node for identifying the frequency range of the used carrier.

摘要翻译： 本发明的目的是提供一种用于更有效的载波搜索的机制。 该目的通过用于在第一节点中发送信号的方法来实现。 第一节点通过无线电通信与第二节点进行通信，该无线电通信是通过多载波传输进行的。 第一个节点使用与频率范围相关联的载波。 该方法包括在频率范围内或接近频率范围内发送结束标记信号的步骤。 终端标记信号旨在由第二节点接收和使用，用于识别所使用的载波的频率范围。

公开(公告)号：US08243758B2

公开(公告)日：2012-08-14

申请号：US12301579

申请日：2006-05-19

申请人： Johan Axnäs ,  Niklas Johansson ,  Johan Nyström ,  Per Skillermark ,  Kai-Erik Sunell

发明人： Johan Axnäs ,  Niklas Johansson ,  Johan Nyström ,  Per Skillermark ,  Kai-Erik Sunell

IPC分类号： H04J1/00

CPC分类号： H04L27/2602 ,  H04L5/0012 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2613 ,  H04W48/08

摘要： The object of the present invention is to provide a mechanism for a more efficient carrier search. The object is achieved by a method for sending a signal in a first node. The first node communicates with a second node via radio communication, which radio communication is performed by multi carrier transmission. The first node uses a carrier, being associated with a frequency range. The method comprises the step of transmitting an end-marker signal within or close to the frequency range. The end-marker signal is intended to be received and used by the second node for identifying the frequency range of the used carrier.

摘要翻译： 本发明的目的是提供一种用于更有效的载波搜索的机制。 该目的通过用于在第一节点中发送信号的方法来实现。 第一节点通过无线电通信与第二节点进行通信，该无线电通信是通过多载波传输进行的。 第一个节点使用与频率范围相关联的载波。 该方法包括在频率范围内或接近频率范围内发送结束标记信号的步骤。 终端标记信号旨在由第二节点接收和使用，用于识别所使用的载波的频率范围。

公开(公告)号：US20140011531A1

公开(公告)日：2014-01-09

申请号：US14006489

申请日：2011-03-22

申请人： Per Burström ,  Peter De Bruin ,  Bo Hagerman ,  Arne Simonsson ,  Per Skillermark

发明人： Per Burström ,  Peter De Bruin ,  Bo Hagerman ,  Arne Simonsson ,  Per Skillermark

IPC分类号： H04B7/02 ,  H04L5/00

CPC分类号： H04B7/024 ,  H04L5/0035 ,  H04W8/186 ,  H04W16/24 ,  H04W24/00 ,  H04W72/121

摘要： The present invention relates to the field of coordinated multipoint transmission and reception (CoMP) in wireless communication networks, in particular to methods, an apparatus, and a network node for use in performing coordinated data transmissions in a wireless communication network. A method for use in a network node for coordinating data transmission to user equipments in a wireless communication network, wherein the wireless communication network comprising at least two access nodes each access node having one or more antennas and being arranged to perform coordinated data transmissions to user equipments is provided. The method comprising: obtaining signal strength values associated with the one or more antennas of the at least two access nodes for a number of user equipments; arranging the number of user equipments into one or more groups of user equipments and associating each of the one or more groups of user equipments with a sub-set of the one or more antennas of the at least two access nodes based on the obtained signal strength values; and coordinating data transmission performed by the at least two access nodes to each of the one or more groups of user equipments based on the subset of the one or more antennas of the at least two access nodes associated with each group of user equipments, respectively.

摘要翻译： 本发明涉及无线通信网络中的协调多点发送和接收（CoMP）领域，特别涉及用于在无线通信网络中执行协调数据传输的方法，装置和网络节点。 一种用于在网络节点中用于协调无线通信网络中的用户设备的数据传输的方法，其中所述无线通信网络包括至少两个接入节点，每个接入节点具有一个或多个天线的接入节点，并且被布置成对用户执行协调的数据传输 提供设备。 该方法包括：获得与多个用户设备的至少两个接入节点的一个或多个天线相关联的信号强度值; 将用户设备的数量设置为一组或多组用户设备，并且基于所获得的信号强度将所述一个或多个用户设备组中的每一个与所述至少两个接入节点中的一个或多个天线的子集相关联 价值观 以及基于与每组用户设备相关联的所述至少两个接入节点中的一个或多个天线的子集分别将所述至少两个接入节点执行的数据传输协调到所述一个或多个用户设备组中的每一个。

公开(公告)号：US08537688B2

公开(公告)日：2013-09-17

申请号：US12528344

申请日：2007-02-23

申请人： David Astely ,  Per Skillermark ,  Tobias Tynderfeldt ,  Erik Westerberg ,  Hannes Ekström

发明人： David Astely ,  Per Skillermark ,  Tobias Tynderfeldt ,  Erik Westerberg ,  Hannes Ekström

IPC分类号： G01R31/08

CPC分类号： H04B7/2656

摘要： The invention discloses a method (1100) for a cellular wireless access TDD system (100) with a base stations (120, 220) for respective cells (110, 210) in the system, where each cell can accommodate at least a first user terminal (130, 230). The user terminals can receive traffic from their base stations during a down link period, and can transmit traffic to their base stations (120, 220) during an up link period (UL). There is a first guard period (TDu) at the transition from down link to up link, and a second guard period (TUD) at the transition from up link to down link. The method comprises measuring the interference level in a second plurality (110, 210) of cells during part of the time between two consecutive down link periods, and varying the duration of said first and/or second guard period in said second plurality of cells (110, 210) according to the interference level.

摘要翻译： 本发明公开了一种用于蜂窝无线接入TDD系统（100）的方法（1100），该系统具有用于系统中的相应小区（110,210）的基站（120,220），其中每个小区可容纳至少第一用户终端 （130,230）。 用户终端可以在下行链路周期期间从其基站接收业务，并且可以在上行链路周期（UL）期间向其基站（120,220）传送业务。 在从下行链路到上行链路的过渡期间存在第一保护期（TDu），以及从上行链路到下行链路的转变的第二保护期（TUD）。 该方法包括在两个连续的下行链路周期之间的部分时间内测量第二多个（110,210）小区中的干扰电平，并改变所述第二多个小区中的所述第一和/或第二保护周期的持续时间（ 110,210）。

公开(公告)号：US08526877B2

公开(公告)日：2013-09-03

申请号：US12747803

申请日：2007-12-14

申请人： Magnus Almgren ,  Per Skillermark

发明人： Magnus Almgren ,  Per Skillermark

IPC分类号： H04B3/36

CPC分类号： H04B7/15535

摘要： One method for controlling operation of a repeater in radio communication system comprises determination whether operation of a node in the radio communication system benefits from assistance of a repeater and transmitting, from the node in the radio communication system, a radio signal to the repeater being indicative of an order to promptly activate the repeater if the benefit exists. One complementary method for controlling operation of a repeater in radio communication system comprises detection (252), in the repeater, of a radio signal being indicative of an order to activate the repeater. Amplification in the repeater is activated (254) as a response to such a detected radio signal and uplink traffic from a user terminal being located in a vicinity of the repeater and/or downlink traffic to the user terminal is amplified (256). A repeater, a node, a user terminal and a system operating according to the method are presented.

摘要翻译： 用于控制无线电通信系统中的中继器的操作的一种方法包括确定无线电通信系统中的节点的操作是否受益于中继器的帮助，并且从无线电通信系统中的节点向无线电通信系统的无线电信号发送指示 的命令，以便在存在利益的情况下及时激活中继器。 用于控制无线电通信系统中的中继器的操作的一种补充方法包括在中继器中检测（252）无线电信号，其指示激活中继器的命令。 作为对这种检测到的无线电信号的响应，中继器中的放大被激活（254），并且来自位于中继器附近的用户终端和/或下行链路业务的用户终端的上行链路业务被放大（256）。 提出了一种中继器，节点，用户终端和根据该方法操作的系统。

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：US08134932B2

公开(公告)日：2012-03-13

申请号：US12293727

申请日：2007-03-20

申请人： Per Skillermark ,  Lei Wan ,  Jingyi Liao

发明人： Per Skillermark ,  Lei Wan ,  Jingyi Liao

IPC分类号： H04J3/17

CPC分类号： H04B7/061 ,  H04B7/0417 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/1854 ,  H04L1/1893

摘要： The present invention relates to methods and arrangements in a multi-antenna radio communication system, in particular to methods and arrangements for improved multiple HARQ transmission in such systems. While HARQ transmission schemes, as known in the art, only can consider the fact whether or not a transmission attempt has been successful the present invention provides a HARQ retransmission scheme that considers the reception quality for already performed transmissions of a same data packet when selecting a resource allocation for necessary re-transmissions. Resource allocation for retransmissions is based on a pre-defined metric indicating a quality of the reception of the previous transmission attempts. Such a metric can be derived from a quality measure derived in the receiver unit, e.g. a CQI or CSI-based value, or an appropriate measure of the mutual information, e.g. the accumulated conditional mutual information (ACMI).

摘要翻译： 本发明涉及多天线无线电通信系统中的方法和装置，特别涉及用于改进这种系统中的多个HARQ传输的方法和装置。 尽管本领域已知的HARQ传输方案只能考虑传输尝试是否成功的事实，但是本发明提供了一种HARQ重传方案，其在选择一个或多个节点时考虑已经执行的相同数据分组的传输的接收质量 资源分配进行必要的重新传输。 用于重传的资源分配基于指示先前传输尝试的接收质量的预定义度量。 这样的度量可以从在接收机单元中导出的质量度量导出，例如， 基于CQI或基于CSI的值，或相互信息的适当度量，例如。 累积条件互信息（ACMI）。

公开(公告)号：US20100273415A1

公开(公告)日：2010-10-28

申请号：US12747767

申请日：2007-12-14

申请人： Magnus Almgren ,  Per Skillermark

发明人： Magnus Almgren ,  Per Skillermark

IPC分类号： H04B7/14

CPC分类号： H04B7/15535 ,  H04B7/15514 ,  H04W16/26

摘要： A repeater device (R) for use in a radio communication system comprises a detector (44), arranged for detecting any existence of radio signaling to and/or from a user terminal being situated in a vicinity of the repeater device (R). The repeater device (R) further comprises an amplifier arrangement (46), arranged for amplifying uplink and/or downlink traffic and means (48) for activating the amplifier arrangement. The means (48) for activating the amplifier arrangement is arranged for activating the amplifier arrangement (46) as a response to an existence of the radio signaling. A method for controlling operation of a repeater in radio communication system comprises detecting, in the repeater, of radio signaling to and/or from a user terminal being situated in a vicinity of the repeater. Amplification in the repeater is activated as a response to an existence of the radio signaling and uplink and/or downlink traffic is amplified.

摘要翻译： 用于无线电通信系统的中继器设备（R）包括检测器（44），其被设置用于检测到位于中继器设备（R）附近的用户终端和/或从位于中继器设备附近的用户终端的任何无线电信令的存在。 中继器装置（R）还包括布置成放大上行链路和/或下行链路业务的放大器装置（46）和用于激活放大器装置的装置（48）。 用于激活放大器装置的装置（48）被布置成作为对无线电信号的存在的响应来激活放大器装置（46）。 一种用于控制无线电通信系统中的中继器的操作的方法，包括在中继器中检测到位于中继器附近的用户终端和/或从位于中继器附近的用户终端的无线电信令。 作为对无线电信令的存在的响应激活中继器中的放大，并且上行链路和/或下行链路业务被放大。

公开(公告)号：US20100097963A1

公开(公告)日：2010-04-22

申请号：US12523134

申请日：2007-01-16

申请人： David Astely ,  Hannes Ekström ,  Alireza Nejatian ,  Per Skillermark ,  Tobias Tynderfeldt ,  Erik Westerberg

发明人： David Astely ,  Hannes Ekström ,  Alireza Nejatian ,  Per Skillermark ,  Tobias Tynderfeldt ,  Erik Westerberg

IPC分类号： H04J3/00

CPC分类号： H04W72/1231 ,  H04W52/267 ,  H04W56/003

摘要： The invention discloses a method (800) for use in a cellular wireless system (100) with a base station (120), a cell (110) in the system and a first user terminal (130) which can be scheduled for receiving traffic from the base station during a down link period, and for transmitting traffic to the base station during an up link period. There is a first guard period (TUD) between the up link period and the down link period, and a second guard period (TDU) between the down link period and the up link period. The method (800) comprises measuring the interference level in the cell for part of the time between two consecutive down link periods, and varying at least one of the following in accordance with the measured interference level: the duration of the first or second guard period, the duration of the up link period, or the traffic sent in the up link period.

摘要翻译： 本发明公开了一种在具有基站（120），系统中的小区（110）和第一用户终端（130）的蜂窝无线系统（100）中使用的方法（800），所述第一用户终端可被调度为从 在下行链路周期期间的基站，并且用于在上行链路周期期间向基站发送业务。 在上行链路周期和下行链路周期之间存在第一保护周期（TUD）和下行链路周期与上行链路周期之间的第二保护周期（TDU）。 方法（800）包括在两个连续的下行链路周期之间的部分时间内测量小区中的干扰电平，并且根据所测量的干扰电平来改变以下中的至少一个：第一或第二保护周期的持续时间 ，上行链路周期的持续时间，或在上行链路周期中发送的流量。

公开(公告)号：US06993339B2

公开(公告)日：2006-01-31

申请号：US10133624

申请日：2002-04-29

申请人： Per Skillermark ,  Paolo Guidotti

发明人： Per Skillermark ,  Paolo Guidotti

IPC分类号： H04Q7/20

CPC分类号： H04W16/10 ,  H04W16/06 ,  H04W16/12 ,  H04W72/00 ,  H04W72/0446 ,  H04W72/0453

摘要： In the present invention, in a cellular communication system using frames (20) of communication resources in time and/or frequency domain, the communication resources (22) are divided into at least two regions (24, 26, 28). A first region (24) has a higher reuse in time and/or frequency domain than a second region (26, 28). The first region is a hybrid region (24), in which the communication resources individually are allocable for either uplink or downlink communication on a cell-to-cell basis. The second region is preferably a dedicated region (26), in which all communication resources have either uplink or downlink allocation. A third region (28) is preferably also present, in which all communication resources are allocated in the opposite direction to the second region (26). In preferred embodiments, the actual allocation of the hybrid region (24) is based on the traffic situation in each individual cell.

摘要翻译： 在本发明中，在使用时域和/或频域的通信资源的帧（20）的蜂窝通信系统中，通信资源（22）被划分为至少两个区域（24,26,28）。 第一区域（24）在时间和/或频域上具有比第二区域（26,28）更高的再利用。 第一区域是混合区域（24），其中通信资源可单独地在基于小区的基础上分配用于上行链路或下行链路通信。 第二区域优选地是专用区域（26），其中所有通信资源具有上行链路或下行链路分配。 优选地还存在第三区域（28），其中所有通信资源被分配在与第二区域（26）相反的方向上。 在优选实施例中，混合区域（24）的实际分配基于每个单独小区中的业务情况。