公开(公告)号：US09882628B2

公开(公告)日：2018-01-30

申请号：US13880533

申请日：2011-09-22

Applicant: Lars Sundstrom ,  Leif Wilhelmsson

Inventor： Lars Sundstrom ,  Leif Wilhelmsson

IPC: H04B7/15 ,  H04B7/155 ,  H04B15/00

CPC classification number: H04B7/15585 ,  H04B7/155 ,  H04B15/00

Abstract: A technique for self-interference suppression control for a relay node is provided. The relay node comprises a transmitter and a receiver, and is adapted to transmit and received simultaneously using the same frequency channel or using proximate frequency channels. The relay node further comprises an interference signal estimator having a first input adapted to receive a transmitter signal from the transmitter, a second input adapted to receive adaptation metric and an output adapted to output an estimated interference signal generated by the interference signal estimator based on the transmitter signal and the adaptation metric. A subtractor is coupled to the output of interference signal estimator and configured to subtract the estimated interference signal from a received signal in the receiver so as to actively cancel a signal transmitted from the relay node that leaks back into the receiver of the relay node to suppress self-interference.

公开(公告)号：US09461730B2

公开(公告)日：2016-10-04

申请号：US13880529

申请日：2011-09-22

Applicant: Leif Wilhelmsson ,  Lars Sundström

Inventor： Leif Wilhelmsson ,  Lars Sundström

IPC: H04B7/155 ,  H04B15/00

CPC classification number: H04B7/15585 ,  H04B7/155 ,  H04B15/00

Abstract: A technique for controlling suppression of self-interference in a relay node configured to transmit and receive simultaneously using the same frequency channel or using proximate frequency channels is provided. A method implementation of this technique comprises the steps of actively cancelling a signal transmitted from the relay node that leaks back into a receiver of the relay node to suppress self-interference, determining whether an increase of an amount of self-interference suppression is needed or whether self-interference suppression can be decreased, and increasing or decreasing, depending on the result of the determination, at least one of the transmit power of the signal transmitted from the relay node and the receive power of the relay node.

Abstract translation: 提供了一种用于控制被配置为使用相同频率信道或使用接近频率信道同时发送和接收的中继节点中的自干扰抑制的技术。 该技术的方法实现包括以下步骤：主动地消除从中继节点发送的信号，该信号泄漏到中继节点的接收机中以抑制自干扰，确定是否需要增加自干扰抑制量， 取决于确定结果，能够减少自干扰抑制，以及根据确定结果增加或减少从中继节点发送的信号的发射功率和中继节点的接收功率中的至少一个。

公开(公告)号：US20150249937A1

公开(公告)日：2015-09-03

申请号：US14430216

申请日：2012-09-28

Applicant: Bengt Lindoff ,  Qianxi Lu ,  Qingyu Miao ,  Leif Wilhelmsson

Inventor： Bengt Lindoff ,  Qianxi Lu ,  Qingyu Miao ,  Leif Wilhelmsson

IPC: H04W36/00 ,  H04W36/16 ,  H04W72/04 ,  H04W76/02 ,  H04W4/00

CPC classification number: H04W36/0011 ,  H04W4/80 ,  H04W36/00 ,  H04W36/165 ,  H04W72/0453 ,  H04W76/14 ,  H04W84/042

Abstract: The present disclosure relates to a method of a first radio device in non-network assisted device-to-device (D2D) communication with a second radio device using a first frequency resource and a first communication protocol. The method comprises determining that the first radio device is within coverage of a cellular network. The method also comprises connecting to the cellular network. The method also comprises sending a message to the second radio device, informing said second radio device that the first radio device is within coverage of the cellular network. The method also comprises receiving a message from the cellular network comprising information about a second frequency resource and a second communication protocol. The method also comprises initiating a handover of the D2D communication from the first frequency resource and communication protocol to the second frequency resource and communication protocol.

Abstract translation: 本公开涉及在使用第一频率资源和第一通信协议的第二无线电设备的非网络辅助设备到设备（D2D）通信中的第一无线电设备的方法。 该方法包括确定第一无线电设备在蜂窝网络的覆盖范围内。 该方法还包括连接到蜂窝网络。 该方法还包括向第二无线电设备发送消息，通知所述第二无线电设备第一无线电设备在蜂窝网络的覆盖范围内。 该方法还包括从蜂窝网络接收包括关于第二频率资源和第二通信协议的信息的消息。 该方法还包括启动D2D通信从第一频率资源和通信协议到第二频率资源和通信协议的切换。

公开(公告)号：US20150223257A1

公开(公告)日：2015-08-06

申请号：US14400681

申请日：2012-06-13

Applicant: Leif Wilhelmsson ,  Gabor Fodor ,  Bengt Lindoff

Inventor： Leif Wilhelmsson ,  Gabor Fodor ,  Bengt Lindoff

IPC: H04W72/08 ,  H04W24/02 ,  H04W76/02 ,  H04W72/04

CPC classification number: H04W72/082 ,  H04W24/02 ,  H04W72/0406 ,  H04W76/14

Abstract: A method of a first wireless communication device adapted to perform device-to-device communication with a third device is disclosed, wherein a second device causes interference to the device-to-device communication. The method comprises determining an interference criterion associated with the second wireless communication device, and transmitting an interference management request message related to the interference criterion to a network node. A corresponding method of a network node adapted to provide assistance of device-to-device communication is also disclosed. The method comprises receiving the interference management request message related to the interference criterion from the first wireless communication device, and transmitting an interference control message to at least one of the first wireless communication device, the second wireless communication device, and the third wireless communication device. Corresponding computer program product, arrangements, wireless communication device and network node are also disclosed.

Abstract translation: 公开了一种适于与第三设备执行设备到设备通信的第一无线通信设备的方法，其中第二设备对设备到设备通信造成干扰。 所述方法包括确定与所述第二无线通信设备相关联的干扰标准，以及将与所述干扰标准相关的干扰管理请求消息发送到网络节点。 还公开了适于提供设备到设备通信的辅助的网络节点的对应方法。 该方法包括从第一无线通信设备接收与干扰标准相关的干扰管理请求消息，并且向第一无线通信设备，第二无线通信设备和第三无线通信设备中的至少一个发送干扰控制消息 。 还公开了相应的计算机程序产品，布置，无线通信设备和网络节点。

公开(公告)号：US20150119058A1

公开(公告)日：2015-04-30

申请号：US14379847

申请日：2012-02-21

Applicant: Johan Rune ,  Anders Wallén ,  Leif Wilhelmsson

Inventor： Johan Rune ,  Anders Wallén ,  Leif Wilhelmsson

IPC: H04W72/04 ,  H04W52/02

CPC classification number: H04W72/048 ,  H04W52/0209 ,  H04W52/0216 ,  H04W52/0219 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/21 ,  Y02D70/24

Abstract: For controlling energy-consumption associated with data transmission between a terminal device (200) and a mobile network a node of the mobile network which is responsible for scheduling the data transmission, e.g., a base station (100) or a control node (300) obtains an energy consumption profile of the terminal device (200). The energy consumption profile specifies characteristics of multiple energy sinks in the terminal device (200). On the basis of the energy consumption profile, the node performs scheduling of the data transmission.

Abstract translation: 为了控制与终端设备（200）和移动网络（负责调度数据传输的移动网络的节点）（例如基站（100）或控制节点（300））之间的数据传输相关联的能量消耗， 获得终端装置（200）的能量消耗曲线。 能量消耗曲线指定终端设备（200）中的多个能量汇的特征。 在能耗曲线的基础上，节点执行数据传输的调度。

公开(公告)号：US09020077B2

公开(公告)日：2015-04-28

申请号：US13823774

申请日：2011-09-16

Applicant: Lars Sundström ,  Fenghao Mu ,  Leif Wilhelmsson

Inventor： Lars Sundström ,  Fenghao Mu ,  Leif Wilhelmsson

IPC: H04L27/22 ,  H04B1/16 ,  H03D7/16 ,  H04B1/12

CPC classification number: H04L27/389 ,  H03D7/166 ,  H03D2200/0088 ,  H04B1/126 ,  H04L25/08

Abstract: A complex intermediate frequency mixer (IFM) for frequency translating a received complex intermediate frequency, IF, signal, wherein the received complex IF signal comprises at least two frequency bands located at upper-side and lower-side of 0 Hz, is provided. The complex intermediate frequency mixer comprises a first, second, third and fourth mixer (M1, M2, M3, M4). The complex intermediate frequency mixer further comprises a first, second, third and fourth gain adjusting component (α1, α2, δ2, δ1), connected to a first, second, third and fourth mixer output (M1-out, M2-out, M3-out, M4-out), respectively. Moreover, a first summing unit (S1), connected to a first gain output (α1-out), a fourth gain output (δ1-out) and a third mixer output (M3-out) negated, and second summing unit (S2), connected to the second gain output (α2-out), the third gain output (δ2-out) and the fourth mixer output (M4-out), are configured to output a first baseband complex signal of the received complex IF signal.

公开(公告)号：US08855570B2

公开(公告)日：2014-10-07

申请号：US12629164

申请日：2009-12-02

Applicant: Leif Wilhelmsson

Inventor： Leif Wilhelmsson

IPC: H04B1/00 ,  H04W72/02 ,  H04W16/14 ,  H04W88/06

CPC classification number: H04W72/02 ,  H04W16/14 ,  H04W52/243 ,  H04W88/06

Abstract: A communication device has a plurality of concurrently operating transceivers, each operating in a respectively different one of a plurality of communication systems, wherein the plurality of concurrently operating transceivers includes a first transceiver and a second transceiver. Operation of the communication device includes the first transceiver ascertaining whether transmissions by the second transceiver are causing interference in a receiver of the first transceiver and if so, performing one or more interference response actions. The one or more interference response actions include ascertaining whether the interference is at an acceptable level and if so then taking no further interference response actions. If the interference is ascertained to be at an unacceptable level, an interference mitigation request is communicated to the second transceiver. The second transceiver can, for example, shift its use of frequencies to a region whereby the first transceiver's band select filter can sufficiently attenuate the second transceiver's signal.

Abstract translation: 通信设备具有多个并发操作的收发器，每个收发器分别在多个通信系统中的不同的一个中工作，其中多个同时操作的收发机包括第一收发器和第二收发器。 通信设备的操作包括第一收发器，确定第二收发器的传输是否在第一收发器的接收机中引起干扰，如果是，执行一个或多个干扰响应动作。 所述一个或多个干扰响应动作包括确定干扰是否在可接受的水平，如果是，那么不采取进一步的干扰响应动作。 如果确定干扰处于不可接受的水平，则将干扰减轻请求传送到第二收发器。 例如，第二收发器可以将频率的使用转换到区域，由此第一收发器的频带选择滤波器可以充分地衰减第二收发信机的信号。

公开(公告)号：US08744468B2

公开(公告)日：2014-06-03

申请号：US13640337

申请日：2012-07-30

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

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

IPC: H04W72/04

CPC classification number: H04W72/1231 ,  H04W52/143 ,  H04W52/244 ,  H04W72/0446 ,  Y02D70/00

Abstract: 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.

Abstract translation: 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为移动终端发送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单独提供，或与宏节点组合。

公开(公告)号：US20140106737A1

公开(公告)日：2014-04-17

申请号：US14009455

申请日：2012-03-14

Applicant: Leif Wilhelmsson ,  Niklas Johansson ,  Bengt Lindoff

Inventor： Leif Wilhelmsson ,  Niklas Johansson ,  Bengt Lindoff

IPC: H04W40/22 ,  H04B7/155

CPC classification number: H04W40/22 ,  H04B7/155 ,  H04B7/15557

Abstract: The embodiments herein relate to a method in a relay node (110) for relaying data from a first network node (107) to a second network node (101) in a radio communication network (100). The relay node (110)receives the data from the first network node (107) and decodes the received data. The relay node (110) determines a delay constraint of the decoded data and recodes the decoded data. The relay node (110) relays the recoded data to the second network node (101) based on the determined delay constraint and according to a radio communication protocol. The communication between the relay node (110), the first network node (107) and the second network node (101) is based on the same radio communication protocol.

Abstract translation: 这里的实施例涉及中继节点（110）中用于在无线电通信网络（100）中将数据从第一网络节点（107）中继到第二网络节点（101）的方法。 中继节点（110）从第一网络节点（107）接收数据，并对接收到的数据进行解码。 中继节点（110）确定解码数据的延迟约束并重新编码解码的数据。 中继节点（110）基于确定的延迟约束并根据无线电通信协议将重新编码的数据中继到第二网络节点（101）。 中继节点（110），第一网络节点（107）和第二网络节点（101）之间的通信基于相同的无线电通信协议。

公开(公告)号：US20140105149A1

公开(公告)日：2014-04-17

申请号：US14116955

申请日：2012-05-14

Applicant: Bengt Lindoff ,  Christian Bergljung ,  Leif Wilhelmsson

Inventor： Bengt Lindoff ,  Christian Bergljung ,  Leif Wilhelmsson

IPC: H04L1/00 ,  H04W72/12

CPC classification number: H04L1/0003 ,  H04J11/003 ,  H04L1/0009 ,  H04L1/0034 ,  H04L1/1867 ,  H04W24/10 ,  H04W72/12 ,  H04W72/1215 ,  H04W72/1226

Abstract: A method in a first radio communication node (110, 310, 710, 1010) and a first radio communication node (110, 310, 710, 1010) for scheduling a data transmission in a first time frame using one of a plurality of modulation and coding schemes are provided. The data transmission is to be transmitted between the first radio communication node (110, 310, 710, 1010) and a second radio communication node (120, 320, 720, 1020). The first radio communication node (110, 310, 710, 1010) obtains (301, 701, 1001, 1401) a first indication about channel quality for the first time frame. The first radio communication node (110, 310, 710, 1010) obtains (302, 702, 1002, 1402) second indication about a possible upcoming transmission failure. The possible upcoming transmission failure relates to a feedback information to be transmitted in a second time frame. The feedback information is associated with the data transmission in the first time frame. The first radio communication node (110, 310, 710, 1010) selects (303, 703, 1003, 1403) a modulation and coding scheme out of said plurality of modulation and coding schemes based on the first indication and the second indication. Next, the first radio communication node (110, 310, 710, 1010) schedules (304, 704, 1004, 1404) the data transmission using the selected modulation and coding scheme.

Abstract translation: 一种在第一无线电通信节点（110,310,710,1010）和第一无线电通信节点（110,310,710,1010）中的方法，用于使用多个调制中的一个来调度第一时间帧中的数据传输，以及 提供编码方案。 数据传输将在第一无线电通信节点（110,310,710,1010）和第二无线电通信节点（120,320,720,1020）之间传输。 第一无线电通信节点（110,310,710,1010）获得关于第一时间帧的信道质量的第一指示（301,701,1001,1401）。 第一无线电通信节点（110,310,710,1010）获得关于可能的即将到来的传输故障的第二指示（302,702,1002,1402）。 可能的即将到来的传输故障涉及要在第二时间帧中发送的反馈信息。 反馈信息与第一时间帧中的数据传输相关联。 基于第一指示和第二指示，第一无线电通信节点（110,310,710,1010）从所述多个调制和编码方案中选择（303,703,1003,1403）调制和编码方案。 接下来，第一无线电通信节点（110,310,710,1010）使用所选择的调制和编码方案来调度（304,704,1004,1404）数据传输。