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1. 发明授权

US08937899B2 Amplify-and-forward relaying in communication systems 有权
标题翻译：通信系统中的放大转发中继
公开(公告)号：US08937899B2
公开(公告)日：2015-01-20
申请号：US13110285
申请日：2011-05-18
申请人： Yuri C. B. Silva , Pedro R. S. Lopes , Francisco R. P. Cavalcanti , Peter Larsson
发明人： Yuri C. B. Silva , Pedro R. S. Lopes , Francisco R. P. Cavalcanti , Peter Larsson
IPC分类号： H04B7/14 , H04B7/155
CPC分类号： H04B7/15521
摘要： Improved amplify-and-forward relaying in a communication network is described, including an example network of multiple single-antenna mobile stations, a multi-antenna relay station, and a multi-antenna base station. Bi-directional communication with improved transmission efficiency is enabled by suitable transmit/receive processing at the relay station without drawbacks of current relaying techniques. Linear transmit and receive processing matrices are disclosed, and it is shown that the numbers of antennas at the relay station and the base station can be substantially the same without reducing network capacity, closely matching the performance for low and high signal to noise ratios of current techniques that require the relay station to have twice as many antennas as the base station.
摘要翻译：描述了通信网络中的改进的放大和转发中继，包括多个单天线移动站的示例网络，多天线中继站和多天线基站。具有改善的传输效率的双向通信可以通过在中继站的合适的发送/接收处理来实现，而不存在当前中继技术的缺点。公开了线性发送和接收处理矩阵，并且示出了中继站和基站处的天线数量可以基本上相同，而不减少网络容量，紧密匹配电流的低和高信噪比的性能要求中继站具有与基站相同数量的天线的技术。

2. 发明授权

US08838034B2 Intercell interference reduction 有权
标题翻译：小区干扰减少
公开(公告)号：US08838034B2
公开(公告)日：2014-09-16
申请号：US12996846
申请日：2008-06-18
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： H04B1/00 , H04B7/06 , H04B7/04
CPC分类号： H04B7/0619 , H04B7/0417
摘要： A distributed antenna system based wireless cellular communication system with transmit side linear interference cancellation is described. In this system the effective channel elements (I) and (II) are estimated and reported by mobile station MS1 and MS2, respectively, to a transmit weight matrix processing apparatus. Processing apparatus uses the effective complex channel matrix (one row reported by each mobile station) to differentially update the transmit weight matrix used for the transmit side linear interference cancellation.
摘要翻译：描述了一种具有发射侧线性干扰消除的基于分布式天线系统的无线蜂窝通信系统。在该系统中，有效信道要素（I）和（II）分别由移动台MS1和MS2估计并报告给发射权重矩阵处理装置。处理装置使用有效的复信道矩阵（每个移动台报告的一行）差分地更新用于发送侧线性干扰消除的发送权重矩阵。

3. 发明授权

US08837297B2 Network coding based on soft feedback 有权
标题翻译：基于软反馈的网络编码
公开(公告)号：US08837297B2
公开(公告)日：2014-09-16
申请号：US12530012
申请日：2007-12-03
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： H04H20/71 , H04L12/863 , H04L12/873 , H04L12/825 , H04L12/801 , H04L12/861 , H04L12/811 , H04L1/20 , H04W24/00 , H04L1/00 , H04W28/04 , H04W84/04 , H04W28/18
CPC分类号： H04L1/20 , H04L1/0026 , H04L47/10 , H04L47/14 , H04L47/26 , H04L47/263 , H04L47/38 , H04L47/522 , H04L47/626 , H04L49/90 , H04L2001/0097 , H04W24/00 , H04W28/04 , H04W28/18 , H04W84/042
摘要： A method (1000) for use in a communications system (100, 200, 400), with a first transceiver (110) which transmits data packets to a second (120) and a third transceiver (130). At least the second transceiver (120) can transmit (1010) to the first transceiver (100) a quality value regarding the reception quality of one or more data packets (300) which have been received by the second transceiver, which quality value the first transceiver (110) can use to modify (1015) its data transmissions. The second transmitter (120) listens for data packets intended both for itself and for said third transmitter (130), and the quality value which is transmitted by the second transceiver (120) is based on (1025) the reception quality of one or more of said data packets, and the reception quality value is expressed as (1030) one of a plurality of possible such values.
摘要翻译：一种在通信系统（100,200,400）中使用的方法（1000），其中第一收发器（110）向第二收发器（130）和第三收发器（130）发送数据分组。至少第二收发器（120）可以向第一收发器（100）发送关于已经由第二收发器接收的一个或多个数据分组（300）的接收质量的质量值，该质量值是第一收发器收发器（110）可用于修改（1015）其数据传输。第二发射机（120）侦听用于其本身和所述第三发射机（130）的数据分组，并且由第二收发机（120）发送的质量值基于（1025）一个或多个的所述数据分组，并且所述接收质量值被表示为（1030）多个可能的这样的值中的一个。

4. 发明授权

US08699942B2 Methods and arrangements for determining radio characteristics of a radio link 有权
标题翻译：确定无线电链路的无线电特性的方法和装置
公开(公告)号：US08699942B2
公开(公告)日：2014-04-15
申请号：US13129778
申请日：2008-11-18
申请人： Pål Frenger , Niklas Johansson , Peter Larsson
发明人： Pål Frenger , Niklas Johansson , Peter Larsson
IPC分类号： H04B3/36 , H04B1/60 , H04B7/15
CPC分类号： H04B7/155 , H04W52/46
摘要： A method and arrangement in a first node (101) for determining radio characteristics of a radio link between a first repeater (103, 203) and at least one second repeater (104, 204) are provided. The first node sends a first message, to the first repeater (103, 203), instructing the first repeater (103, 203) to send a radio signal being measureable by the second repeater (104, 204). Furthermore, the first node sends a second message, to said at least one second repeater, instructing said at least one second repeater (104, 204) to measure on the radio signal. The first node receives measurement data of the radio signal, measured by said at least one second repeater (104, 204). The first node (101) determines radio characteristics of the radio link between the first repeater (103, 203) and said at least one second repeater based on the measurement data. Methods and arrangements in a first and second repeater and a method and arrangement in a second node for contributing to radio characteristics determination are provided.
摘要翻译：提供了用于确定第一中继器（103,203）和至少一个第二中继器（104,204）之间的无线电链路的无线电特性的第一节点（101）中的方法和装置。第一节点向第一中继器（103,203）发送第一消息，指示第一中继器（103,203）发送可由第二中继器（104,204）测量的无线电信号。此外，第一节点向所述至少一个第二中继器发送第二消息，指示所述至少一个第二中继器（104,204）在无线电信号上进行测量。第一节点接收由所述至少一个第二中继器（104,204）测量的无线电信号的测量数据。第一节点（101）基于测量数据确定第一中继器（103,203）和所述至少一个第二中继器之间的无线电链路的无线电特性。提供了第一和第二中继器中的方法和布置以及用于有助于无线电特性确定的第二节点中的方法和装置。

5. 发明授权

US08559992B2 Coordinated multipoint transmission/reception user grouping 有权
标题翻译：协调多点发送/接收用户分组
公开(公告)号：US08559992B2
公开(公告)日：2013-10-15
申请号：US13120152
申请日：2008-09-24
申请人： Peter Larsson , Qingyu Miao , Jiansong Gan
发明人： Peter Larsson , Qingyu Miao , Jiansong Gan
IPC分类号： H04B15/00
CPC分类号： H04W72/082 , H04W4/08 , H04W8/24 , H04W48/08 , H04W72/0446 , H04W72/0453 , H04W72/06
摘要： User grouping is employed to tradeoff the COMP forward link capacity and required reverse link feedback, which makes the design of COMP practical and flexible. A channel element, such as the large scale fading, is measured for each distributed transmitter and UE pair based on reference signals, and the network receives this information as feedback in the reverse link. The COMP determines a maximum cross interference level αreq that is affordable, based on the available reverse link capacity for feedback. If this maximum cross interference level αreq is exceeded, geographically separate UEs are divided into as few groups as possible, with UEs within each group separated, and the groups are allocated different time/frequency resource blocks. The grouping is done with the constraint that the cross interference does not exceed αreq.
摘要翻译：用户分组用于权衡COMP前向链路容量和所需的反向链路反馈，这使得COMP的设计实用性和灵活性。基于参考信号为每个分布式发射机和UE对测量诸如大规模衰落的信道元素，并且网络将该信息作为反向链路中的反馈接收。 COMP基于可用的反向链路容量进行反馈，确定了可承受的最大交叉干扰水平alphareq。如果超过这个最大交叉干扰水平αphareq，则将地理上分离的UE划分成尽可能少的组，每个组中的UE分离，并且分配不同的时间/频率资源块。分组完成的交叉干扰不超过alphareq的约束。

6. 发明授权

US08391802B2 Link adaptation and power control with consumed energy minimization 有权
标题翻译：链路适应和功率控制与消耗的能量最小化
公开(公告)号：US08391802B2
公开(公告)日：2013-03-05
申请号：US12278851
申请日：2006-02-08
申请人： Peter Larsson , Zhang Zhang
发明人： Peter Larsson , Zhang Zhang
IPC分类号： H04B1/00
CPC分类号： H04W52/24 , H04L1/0003 , H04L1/0006 , H04L1/0009 , H04L1/0019 , H04W52/0203 , H04W52/26 , H04W52/367 , H04W52/383 , Y02D70/1226 , Y02D70/142 , Y02D70/144 , Y02D70/22
摘要： The invention relates to the control and adaptation of transmit parameters for wireless communication between a transmitter (TX) and at least one receiver (RX) to provide joint power and link adaptation. A basic idea of the invention is to collectively determine the transmit duration (T) and transmit power (P) of the transmitter based on minimization of a given objective function representative of total consumed energy, on both the transmitting side and the receiving side, with respect to transmit duration and/or transmit power. In effect, this means that link transmit parameters are determined based on the energy consumption on both the transmitting side and the receiving side. In addition, both transmit power and transmit duration are varied, while minimizing overall consumed energy.
摘要翻译：本发明涉及用于发射机（TX）和至少一个接收机（RX）之间的无线通信的发射参数的控制和调整，以提供联合功率和链路自适应。本发明的基本思想是基于在发射侧和接收侧上表示总消耗的能量的给定目标函数的最小化来共同地确定发射机的发射持续时间（T）和发射功率（P）关于传输持续时间和/或传输功率。实际上，这意味着基于发送侧和接收侧的能量消耗来确定链路发送参数。此外，传输功率和发射持续时间都是变化的，同时最小化总体消耗的能量。

7. 发明申请

US20130051273A1 PLANNING ALLOCATION OF TIME-FREQUENCY RESOURCES IN WIRELESS OFDMA COMMUNICATION SYSTEMS 有权
标题翻译：无线通信系统中时频分配的规划分配
公开(公告)号：US20130051273A1
公开(公告)日：2013-02-28
申请号：US13695306
申请日：2010-05-04
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： H04W24/00
CPC分类号： H04L1/0019 , H04L1/0002 , H04L5/0007 , H04L5/006
摘要： A time-frequency resource allocation planner for planning allocation of time-frequency resources to sustain communication links from a common transmitter (TX) to multiple receivers (RX1, . . . , RXK) in a wireless OFDMA communication system includes a resource block selector configured to select a set (RBS) of time-frequency resource blocks (RB) for transmission of one packet for each communication link. A communication link quality measure provider is configured to determine a gain-to-interference-plus-noise ratio measure (Gk) for each communication link. A transmit power and transmit rate estimator, connected to the resource block selector and the communication link quality measure provider, is configured to jointly estimate, within the selected set of time-frequency resource blocks, transmit power (Pk) and transmit rate (Rk) of the packets as functions of determined gain-to-interference-plus-noise ratio measures, to at least approximately minimize expected transmitter energy consumption.
摘要翻译：用于在无线OFDMA通信系统中规划用于维持从公共发射机（TX）到多个接收机（RX1，...，RXK）的通信链路的时间 - 频率资源的分配的时间 - 频率资源分配规划器包括配置的资源块选择器选择用于每个通信链路的一个分组的传输的时间 - 频率资源块（RB）的集合（RBS）。通信链路质量测量提供者经配置以确定每个通信链路的增益与干扰加噪声比测量（Gk）。连接到资源块选择器和通信链路质量测量提供者的发射功率和发射速率估计器被配置为在所选择的一组时间 - 频率资源块内共同估计发射功率（Pk）和传输速率（R k）作为确定的增益与干扰加噪声比测量的函数，以至少大致最小化预期的发射机能量消耗。

8. 发明申请

US20110228693A1 Method Of Sensing 有权
标题翻译：感知方法
公开(公告)号：US20110228693A1
公开(公告)日：2011-09-22
申请号：US13129149
申请日：2009-03-23
申请人： Peter Larsson , Yngve Selén , Mikael Prytz
发明人： Peter Larsson , Yngve Selén , Mikael Prytz
IPC分类号： H04W24/00
CPC分类号： H04W72/02 , H04W72/0406 , H04W72/085 , H04W84/18
摘要： In a radio system where wireless nodes are in contact, the wireless nodes are enabled to exchange information, with adjacent nodes. In addition distant nodes out of range for direct communication can in accordance with one embodiment be communicated with by forwarding data over multiple hops. The wireless nodes are adapted to perform sensing of at least one radio resource in response to a request from a node. Based on the collective information from at least one other wireless nodes a wireless node can make an improved decision if a particular radio resource is free to use or not.
摘要翻译：在无线节点接触的无线电系统中，无线节点能够与相邻节点交换信息。此外，根据一个实施例，远程节点超出范围直接通信可以通过在多跳上转发数据来进行通信。无线节点适于响应于来自节点的请求来执行至少一个无线电资源的感测。基于来自至少一个其他无线节点的集体信息，无线节点可以在特定无线电资源是否自由使用时进行改进的决定。

9. 发明申请

US20110164661A1 Insertion of Signals by an Intermediate Device 有权
标题翻译：通过中间设备插入信号
公开(公告)号：US20110164661A1
公开(公告)日：2011-07-07
申请号：US13003305
申请日：2008-07-10
申请人： Pål Frenger , Peter Larsson , Niklas Johannson
发明人： Pål Frenger , Peter Larsson , Niklas Johannson
IPC分类号： H04B3/36
CPC分类号： H04B7/155 , H04B7/043 , H04B7/15542 , H04L5/0007 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04L5/0053 , H04W28/021 , H04W72/0406
摘要： A method is performed by an intermediate device in a multi-hop wireless network. The method includes receiving a transmission to forward to another device and synchronizing with the transmission based on a format of the transmission. The method further includes selecting a resource portion of the transmission based on information included in the transmission or information previously received, and inserting a signal in the selected resource portion of the transmission. The method also includes forwarding the transmission that includes the signal to the other device.
摘要翻译：一种方法由多跳无线网络中的中间设备执行。该方法包括：基于传输的格式接收传输到另一设备并与传输同步。该方法还包括基于传输中包含的信息或先前接收到的信息来选择传输的资源部分，并且在传输的所选择的资源部分中插入信号。该方法还包括将包括该信号的传输转发到另一设备。

10. 发明授权

US07940712B2 Method and arrangement for coding and scheduling in packet data communication systems 有权
标题翻译：分组数据通信系统中编码和调度的方法和装置
公开(公告)号：US07940712B2
公开(公告)日：2011-05-10
申请号：US11994887
申请日：2006-05-05
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： H04H20/71
CPC分类号： H04L1/1867 , H04L1/004 , H04L2001/0093
摘要： The method and arrangement according to the present invention relates to scheduling and coding in communication systems utilizing automatic repeat request (ARQ) and/or multihop scheduling and forwarding. According to the inventive method the receiving nodes selectively stores received information, also overheard information, as a priori information and feed back information about their respective stored a priori information to a sending node. The sending node forms composite data packets by jointly encoding and scheduling multiple multicast data packets, and subsequently transmits the composite data packets to the receiving nodes. Upon receiving a composite data packet the receiving nodes uses their stored a priori information, comprising of regular multicast packets, or full or partly decoded composite packets comprised of regular multicast packets, in the process of extracting multicast data packets from the composite data packets.
摘要翻译：根据本发明的方法和装置涉及利用自动重复请求（ARQ）和/或多跳调度和转发的通信系统中的调度和编码。根据本发明的方法，接收节点选择性地存储接收到的信息，并且也听到信息，作为先验信息，并将关于它们各自存储的先验信息的信息反馈给发送节点。发送节点通过联合编码和调度多个组播数据包来形成复合数据包，随后将复合数据包发送到接收节点。在从合成数据分组中提取组播数据分组的过程中，接收节点接收到节点使用它们所存储的包括常规多播分组的先验信息，或由常规多播分组组成的全部或部分解码的复合分组。

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