公开(公告)号：US07729260B2

公开(公告)日：2010-06-01

申请号：US10584131

申请日：2004-12-01

申请人： Peter Larsson ,  Niklas Johansson

发明人： Peter Larsson ,  Niklas Johansson

IPC分类号： H04L12/26

CPC分类号： H04W40/02 ,  H04L45/04 ,  H04L45/124 ,  H04L45/22 ,  H04W4/24 ,  H04W52/46 ,  Y02D70/22 ,  Y02D70/30

摘要： In a multihop communications network a cost determination method includes determining a plurality of simultaneously potential or favorable next hop nodes for at least one of the nodes between a source and a destination node pair, whereby a mesh-like path comprising a plurality of simultaneously potential routes or paths is defined between the source and destination node. This mesh-like structure is typically determined in a distributed manner and results from a cost optimization process. The cost optimization should preferably consider stochastic variations that for example are caused by the wireless medium.

摘要翻译： 在多跳通信网络中，成本确定方法包括为源节点对和目的节点对之间的节点中的至少一个节点确定多个同时可能的或有利的下一跳节点，由此网状路径包括多个同时的潜在路由 或者在源节点和目的节点之间定义路径。 这种网状结构通常以分布式方式确定并且由成本优化过程产生。 成本优化应优选考虑例如由无线介质引起的随机变化。

公开(公告)号：US07710908B2

公开(公告)日：2010-05-04

申请号：US11994942

申请日：2006-05-05

申请人： Peter Larsson ,  Niklas Johan Johansson

发明人： Peter Larsson ,  Niklas Johan Johansson

IPC分类号： H04H20/71

CPC分类号： H04L1/1867 ,  H04L1/004 ,  H04L2001/0093

摘要： A sending node (405) is adapted for communication with several receiving nodes (410, 420) by transmitting information in the form of a regular data packet to at least one intended receiving nodes, said sending node comprising—means to receive, identify and store a priori information in feedback from receiving nodes (410, 420); —means (905) for forming a composite data packet from at least two regular data packets, said means arranged to use a priori information from said a priori information storage module (910) and to determine which multiple individual data packets to retrieve from a buffer module (920) for use in the composite data packet, said means being arranged to form a composite data packet from which the intended receiving node for each of the at least two regular packets can decode the composite packet to obtain at least one packet intended for it.

摘要翻译： 发送节点（405）适于通过以规则数据分组的形式向至少一个预期接收节点发送信息来与若干接收节点（410,420）通信，所述发送节点包括 - 用于接收，识别和存储的装置 来自接收节点（410,420）的反馈中的先验信息; - 用于从至少两个常规数据分组形成复合数据分组的装置（905），所述装置被布置成使用来自所述先验信息存储模块（910）的先验信息，并确定从缓冲器中检索哪些多个单独数据分组 模块（920），用于在复合数据分组中使用，所述装置被布置成形成复合数据分组，所述至少两个常规分组中的每一个的预期接收节点从该组合数据分组可以解码复合分组，以获得至少一个用于 它。

公开(公告)号：US20100098014A1

公开(公告)日：2010-04-22

申请号：US12588109

申请日：2009-10-05

申请人： Peter Larsson

发明人： Peter Larsson

IPC分类号： H04W72/04 ,  H04W28/00 ,  H04B7/208

CPC分类号： H04B7/022 ,  H04B7/0857 ,  H04L25/067 ,  H04W36/18 ,  H04W52/12 ,  H04W52/42

摘要： Each receiving node (120) of a plurality of receiving nodes (120-1, 120-2 and 120-3) such as base stations in a wireless network converts a superposition of signals received from a plurality of transmitting nodes such as mobile terminals (10) to produce soft complex signal information. The soft complex signal information associated with the considered plurality of receiving nodes are collected, for example in a central node (130) and jointly detect signal information transmitted from at least a subset of the plurality of transmitting nodes (10) based on the collected soft complex signal information. The collected soft signal information generally retains phase and amplitude information, and the transmitted signals are preferably detected in a joint detection process based on a complex channel representation and collected soft signal information. In a truly distributed realization, adjacent receiving nodes or base stations exchange soft complex signal information with each other, thus forming at least partially overlapping groups for distributed collection of information, detection and subsequent decoding in each base station.

公开(公告)号：US20090268662A1

公开(公告)日：2009-10-29

申请号：US11794473

申请日：2005-12-22

申请人： Peter Larsson ,  Niklas Johansson ,  Kai-Erik Sunell

发明人： Peter Larsson ,  Niklas Johansson ,  Kai-Erik Sunell

IPC分类号： H04W4/00 ,  H03M13/00

CPC分类号： H04L1/0041 ,  H03M7/30 ,  H04B7/15521 ,  H04B7/15592 ,  H04L2001/0097 ,  H04W16/26

摘要： The present invention relates to methods and arrangements in a relaying radio node and/or in a sending/receiving radio node, adapted for use in a relaying communication system. The relaying node is in bidirectional communication with at least a first and a second sending/receiving radio node, and the relaying radio node receives at least a first signal carrying at least first data and a second signal carrying at least second data. The relaying node generates a reduced representation of at least the first and second signal, with a reduced information content as compared to the first and second data, by a joint non-linearly encoding operation, and transmits the reduced representation to at least the first and the second communication node. The first and second sending/receiving node can extract data from the reduced representation by a non-linear decoding operation using stored a priori information.

摘要翻译： 本发明涉及中继无线电节点和/或发送/接收无线电节点中适用于中继通信系统中的方法和装置。 所述中继节点与至少第一和第二发送/接收无线电节点进行双向通信，并且所述中继无线电节点至少接收至少携带至少第一数据的第一信号和携带至少第二数据的第二信号。 通过联合非线性编码操作，中继节点通过联合非线性编码操作产生具有与第一和第二数据相比减少的信息内容的至少第一和第二信号的缩小表示，并将缩减表示发送到至少第一和第二信号 第二通信节点。 第一和第二发送/接收节点可以使用存储的先验信息通过非线性解码操作从缩小表示中提取数据。

公开(公告)号：US20090175172A1

公开(公告)日：2009-07-09

申请号：US11917112

申请日：2005-12-01

申请人： Mikael Prytz ,  Joachim Sachs ,  Per Magnusson ,  Johan Lundsjö ,  Peter Larsson

发明人： Mikael Prytz ,  Joachim Sachs ,  Per Magnusson ,  Johan Lundsjö ,  Peter Larsson

IPC分类号： H04L12/26

CPC分类号： H04L45/123 ,  H04L45/12 ,  H04L45/1283 ,  H04W40/00

摘要： This invention extends routing mechanisms that use link metrics for route selection so that: A link metric cross correlation vector is determined for all links, where each element in the vector corresponds to some other link, and reflects the change in the link metric value if a data flow would already use this other link. The invention further describes a specific embodiment where all cross-correlating links are adjacent to each other, i.e., they terminate or originate in a common node. A mechanism is described to create an extended routing graph. This extended graph permits the use of standard polynomial time algorithms that simultaneously construct the optimal route and find the optimal route metric (such as shortest-path algorithms) also for the adjacent link cross-correlating case.

摘要翻译： 本发明扩展了使用用于路由选择的链路度量的路由机制，使得：针对所有链路确定链路度量互相关向量，其中向量中的每个元素对应于某个其他链路，并且如果a 数据流将已经使用这个其他链接。 本发明进一步描述了一个具体实施例，其中所有交叉相关链路彼此相邻，即，它们终止或产生在公共节点中。 描述了一种机制来创建扩展路由图。 该扩展图允许使用标准多项式时间算法，其同时构建最优路由并且为相邻链路交叉关联情况找到最优路由度量（例如最短路径算法）。

公开(公告)号：US20080274692A1

公开(公告)日：2008-11-06

申请号：US12095478

申请日：2005-11-29

申请人： Peter Larsson

发明人： Peter Larsson

IPC分类号： H04B7/14

CPC分类号： H04L5/0048 ,  H04B7/15592 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0057 ,  H04L2001/0097 ,  H04W40/28 ,  H04W52/40

摘要： A wireless relaying network having a number of network nodes including a designated originating node, at least one relaying node, and at least two receiving nodes. The designated originating node transmits a pilot signal, and the relaying node(s) receives and forwards the pilot signal to the receiving nodes, each of which measures channel quality based on the received pilot signal. At least part of the receiving nodes feed information on the measured channel quality all the way back to the designated originating node, and the originating node then schedules data for transmission to at least one selected node of the receiving nodes based on the received channel quality information. Subsequently, the designated originating node transmits data to the selected receiving node(s) via the same relaying node(s) that forwarded the pilot signal. In this way, multi-user diversity scheduling is introduced to relaying networks that provides significant data rate enhancements.

摘要翻译： 一种具有多个网络节点的无线中继网络，包括指定的起始节点，至少一个中继节点和至少两个接收节点。 指定的起始节点发送导频信号，并且中继节点接收并转发导频信号到接收节点，接收节点中的每一个基于接收到的导频信号测量信道质量。 接收节点的至少一部分将所测量的信道质量的信息一直提供给指定的发起节点，并且始发节点然后基于所接收的信道质量信息调度数据以传输到接收节点的至少一个选定节点 。 随后，指定的起始节点通过转发导频信号的相同中继节点将数据发送到所选择的接收节点。 以这种方式，多用户分集调度被引入到提供显着数据速率增强的中继网络。

公开(公告)号：US20080212510A1

公开(公告)日：2008-09-04

申请号：US11994887

申请日：2006-05-05

申请人： Peter Larsson

发明人： Peter Larsson

IPC分类号： H04J15/00

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。

公开(公告)号：US20080076466A1

公开(公告)日：2008-03-27

申请号：US11947341

申请日：2007-11-29

申请人： Peter Larsson

发明人： Peter Larsson

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/46 ,  H04W28/18 ,  H04W28/26 ,  H04W52/08 ,  H04W52/10 ,  H04W52/16 ,  H04W52/243 ,  H04W52/50 ,  H04W52/54 ,  H04W74/0816

摘要： A method for closed loop link adjustment based on a Request To Send-Clear To Send (RTS-CTS) channel access scheme includes the following steps. Designating a station as an originating station. Transmitting a RTS frame with predetermined transmit power from an originating station, prior to an intended DATA transmission, sounding the channel such that reception characteristics can be evaluated at a designated receiving station. Transmitting, in response to the originating station, a CTS frame with a predetermined transmit power from the receiving station with directives of link adjustments. Transmitting a DATA frame from the originating station to the receiving station frame complying with link adjustment directives to the extent of the originating stations capabilities. And, transmitting an acknowledge (ACK) frame in response to the originating stations from the receiving station indicating result of DATA frame reception.

公开(公告)号：US20070160014A1

公开(公告)日：2007-07-12

申请号：US10596861

申请日：2004-12-23

申请人： Peter Larsson

发明人： Peter Larsson

IPC分类号： H04Q7/24

CPC分类号： H04B7/022 ,  H04B7/15592 ,  H04B7/2606 ,  H04B17/382 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0048 ,  H04L25/0224 ,  H04L25/0242 ,  H04W24/00 ,  H04W40/02 ,  H04W52/46 ,  H04W76/10 ,  H04W84/047 ,  H04W88/04

摘要： The present invention relates to relay supported wireless communication to enhance communication performance. In the wireless communication system according to the invention neighboring relay stations are arranged with substantially overlapping coverage. In the method according to the invention mobile stations makes soft association to relay stations. The mobile stations feed back the selection of relay stations and channel quality measures to the base station. The base station adapts the transmission to the relay stations based on each mobile stations reported soft associations and channel quality measures. In this way the control signaling to and from the relay stations can be very limited.

摘要翻译： 本发明涉及中继支持的无线通信，以增强通信性能。 在根据本发明的无线通信系统中，相邻中继站布置有大致重叠的覆盖。 在根据本发明的方法中，移动站对中继站进行软关联。 移动台向基站反馈中继站的选择和信道质量措施。 根据每个移动台报告的软关联和信道质量测量，基站将传输适配到中继站。 以这种方式，来往和来自中继站的控制信号可以非常有限。

公开(公告)号：US20070149135A1

公开(公告)日：2007-06-28

申请号：US10584129

申请日：2003-12-23

申请人： Peter Larsson ,  Johan Nystrom

发明人： Peter Larsson ,  Johan Nystrom

IPC分类号： H04B17/00

CPC分类号： H04B7/022

摘要： A multiple path information transfer system in a cellular radio network includes several receivers (BS-1, . . . , BS-N) for receiving radio signals representing digital information from at least one signal source. From each received radio signal a corresponding digitized baseband signal that contains soft information is extracted. Compressing units (10) compress the soft information to produce compressed baseband signals. These compressed signals are forwarded to a combining unit over a transport network. A de-compressor (16) de-compresses the forwarded signals to at least approximately restore the baseband signals. The de-compressed signals are combined (18-22) and the combined signal is decoded to at least approximately restore the digital information.

摘要翻译： 蜂窝无线电网络中的多路径信息传输系统包括用于从至少一个信号源接收表示数字信息的无线电信号的几个接收机（BS-1，...，BS-N）。 从每个接收到的无线电信号中提取包含软信息的对应的数字化基带信号。 压缩单元（10）压缩软信息以产生压缩的基带信号。 这些压缩信号通过传输网络转发到组合单元。 解压缩器（16）将所转发的信号压缩至少近似地恢复基带信号。 解压缩信号被组合（18-22），并且组合的信号被解码以至少大致恢复数字信息。