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1. 发明授权

US08159954B2 Method and arragement for advanced routing metrics in multihop networks 有权
标题翻译：多跳网络中高级路由指标的方法和策略
公开(公告)号：US08159954B2
公开(公告)日：2012-04-17
申请号：US11792286
申请日：2005-03-08
申请人： Peter Larsson , Niklas Johansson , Rong Hu , Zhang Zhang
发明人： Peter Larsson , Niklas Johansson , Rong Hu , Zhang Zhang
IPC分类号： G06F11/00
CPC分类号： H04W40/06 , H04L45/00 , H04L45/123 , H04W84/18 , Y02D70/22 , Y02D70/322
摘要： The inventors have envisioned a multihop network scenario in which nodes are equipped with advanced multi-antenna arrangements, and recognized the advantage of exploring the presence of such advanced antenna arrangements in multihop network nodes for the specific purpose of determining link cost for routing in the network. Link cost is determined for a wireless link between a pair of nodes in the network based on multi-channel characteristics between the nodes, where at least one of the nodes is configured for operation with multiple antennas to provide for multiple channels. These multi-channel characteristics may for example be determined based on explicit channel matrix estimation and/or the number of transmit and receive antennas or other information on the antenna capabilities of the involved nodes. The determined link cost information may subsequently be used together with additional routing cost information for route determination, and packet forwarding.
摘要翻译：本发明人设想了一种多跳网络场景，其中节点配备有先进的多天线布置，并且认识到在多跳网络节点中探索这种高级天线布置的存在的优点，用于确定网络中的路由的链路成本。基于节点之间的多信道特性来确定网络中的一对节点之间的无线链路的链路成本，其中至少一个节点被配置为使用多个天线进行操作以提供多个信道。这些多信道特征可以例如基于显式信道矩阵估计和/或发射和接收天线的数量或涉及节点的天线能力的其他信息来确定。所确定的链路成本信息随后可以与用于路由确定和分组转发的附加路由成本信息一起使用。

2. 发明申请

US20110275313A1 Systems And Methods For Forwarding A Multi-User RF Signal 有权
标题翻译：用于转发多用户RF信号的系统和方法
公开(公告)号：US20110275313A1
公开(公告)日：2011-11-10
申请号：US13143522
申请日：2009-01-19
申请人： Robert Baldemair , Päl Frenger , Niklas Johansson , Peter Larsson
发明人： Robert Baldemair , Päl Frenger , Niklas Johansson , Peter Larsson
IPC分类号： H04W88/04 , H04B3/36
CPC分类号： H04B7/2606 , H04B7/15542 , H04L5/0007 , H04L5/0037
摘要： A dynamic frequency translating repeater operating in a mobile communications system is operable to receive a multi-user signal and perform time-varying and user-specific frequency shifting in the repeater signal. The dynamic frequency translating repeater may further perform user subcarrier specific dynamic frequency translation. Different mobile stations may be allocated different frequency shift amounts based on the interference environments, resource allocations, and scheduling constraints particular to each mobile station.
摘要翻译：在移动通信系统中操作的动态频率转换中继器可操作以接收多用户信号并在中继器信号中执行时变和用户特定的频移。动态频率转换中继器可以进一步执行用户子载波特定的动态频率转换。可以基于每个移动台特有的干扰环境，资源分配和调度约束来分配不同的移动站的不同的频移量。

3. 发明授权

US07920501B2 Method and arrangement for bi-directional relaying in wireless communication systems 有权
标题翻译：无线通信系统中双向中继的方法和装置
公开(公告)号：US07920501B2
公开(公告)日：2011-04-05
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： H04B7/14
CPC分类号： H04L1/0041 , H03M7/30 , H04B7/15521 , H04B7/15592 , H04L2001/0097 , H04W16/26
摘要： A 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：中继节点与至少第一和第二发送/接收无线电节点双向通信，并且中继无线电节点至少接收携带至少第一数据的第一信号和至少携带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。

4. 发明授权

US07464166B2 Contention-based forwarding with integrated multi-user detection capability 有权
标题翻译：基于竞争的转发具有集成的多用户检测能力
公开(公告)号：US07464166B2
公开(公告)日：2008-12-09
申请号：US10729835
申请日：2003-12-08
申请人： Peter Larsson , Niklas Johansson
发明人： Peter Larsson , Niklas Johansson
IPC分类号： G06F15/16
CPC分类号： H04L45/00 , H04B7/2606 , H04L47/10 , H04L47/14 , H04L47/15 , H04L47/17 , H04L47/41
摘要： A basic idea is to employ multi-user detection (MUD) at the receiver side in a multi-hop network to concurrently decode multiple packets transmitted from multiple nodes (T1, T2), and prioritize among the correctly decoded packets to select one or more packets suitable for forwarding, and finally reply with a packet acknowledgement (ACK) to the corresponding transmitting node for each selected packet. In this way, the design choice of MUD is exploited in the forwarding procedure. It is furthermore beneficial to exploit also the diversity enabled by the existence of multiple relay nodes (R1, R2, R3). A transmitting node that transmits its data packet signal to multiple relay candidate nodes and then receives packet acknowledgements from at least two relay candidate nodes preferably performs a prioritization to select a suitable relay node. The transmitting node then transmits a forwarding order (FO) to the selected relay node, which takes on responsibility for forwarding the information to the next node.
摘要翻译：一个基本思想是在多跳网络中的接收机侧采用多用户检测（MUD）来同时解码从多个节点（T1，T2）发送的多个分组，并且在正确解码的分组中优先选择一个或多个适用于转发的分组，并且最后用每个所选分组的对应发送节点的分组确认（ACK）进行答复。以这种方式，在转发过程中利用了MUD的设计选择。此外，还有利于利用多个中继节点（R1，R2，R3）的存在实现的分集。将其数据分组信号发送到多个中继候选节点，然后从至少两个中继候选节点接收分组确认的发送节点优选地执行优先级选择合适的中继节点。然后，发送节点向所选择的中继节点发送转发顺序（FO），该中继节点负责将信息转发到下一个节点。

5. 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。

6. 发明申请

US20110081856A1 Methods and Arrangements for Frequency Selective Repetition 有权
标题翻译：频率选择重复的方法和布置
公开(公告)号：US20110081856A1
公开(公告)日：2011-04-07
申请号：US12996678
申请日：2009-06-22
申请人： Niklas Johansson , Gunnar Mildh , Pål Frenger , Peter Larsson
发明人： Niklas Johansson , Gunnar Mildh , Pål Frenger , Peter Larsson
IPC分类号： H04B1/40 , H04B3/36
CPC分类号： H04B7/15542 , Y02D70/1262 , Y02D70/1264 , Y02D70/446
摘要： Methods and apparatuses for enabling frequency selective repetition of signals in a telecommunication system in which aggregation of component carriers is applied. Information signals are received (1102) in a first set of frequency bands, which is defined to cover anchor carriers, which can be used by both legacy and non-legacy terminals. Further, information is received (1104) in a second set of frequency bands, which is defined to cover non-anchor carriers, which only can be used by non-legacy terminals. Instructions concerning which frequency band(s) that should be repeated by the repeater node, are also received (1106). Thereafter, the frequency bands indicated in the instructions are filtered out (1110), after which these frequency bands or parts are repeated by the repeater node. This results in enabling frequency selective repetition in a system which may comprise legacy mobile, which limits the interference in the system, which enables higher bitrates and saves energy.
摘要翻译：在应用分量载波的聚合的电信系统中，使信号频率选择性重复的方法和装置。信息信号在第一组频带中被接收（1102），其被定义为覆盖可以由传统终端和非传统终端使用的锚定载波。此外，在第二组频带中接收信息（1104），其被定义为覆盖只能由非传统终端使用的非锚定载波。还接收关于中继器节点应该重复哪个频带的指令（1106）。此后，滤除指令中指示的频带（1110），之后由中继器节点重复这些频带或部分。这导致在可能包括传统移动设备的系统中实现频率选择性重复，这限制了系统中的干扰，其实现更高的比特率并节省能量。

7. 发明授权

US07729260B2 Cost determination in a multihop network 有权
标题翻译：多跳网络中的成本确定
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。

8. 发明申请

US20090268662A1 Method and Arrangement for Bi-Directional Relating in Wireless Communication Systems 有权
标题翻译：无线通信系统中双向关系的方法与布置
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。

9. 发明申请

US20070147254A1 Cost determination in a multihop network 有权
标题翻译：多跳网络中的成本确定
公开(公告)号：US20070147254A1
公开(公告)日：2007-06-28
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 , H04J3/14
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。

10. 发明申请

US20070101015A1 Fast opportunistic distributed resource reallocation for established connections in a multihop network 审中-公开
标题翻译：在多跳网络中建立连接的快速机会性分布式资源重新分配
公开(公告)号：US20070101015A1
公开(公告)日：2007-05-03
申请号：US10596586
申请日：2003-12-19
申请人： Peter Larsson , Niklas Johansson
发明人： Peter Larsson , Niklas Johansson
IPC分类号： G06F15/173
CPC分类号： H04L47/824 , H04L45/02 , H04L45/123 , H04L45/44 , H04L47/70 , H04L47/762 , H04L47/783 , H04L47/822 , H04L47/829 , H04W28/06 , H04W36/00 , H04W40/00 , H04W40/02 , H04W40/08 , H04W40/12 , H04W40/28 , H04W40/38 , H04W72/04 , H04W80/00 , H04W84/18 , Y02D70/22 , Y02D70/30 , Y02D70/324 , Y02D70/34
摘要： A multihop network and nodes are described herein that implement a reactive routing protocol that enables resources of the multihop network to be continuously adapted in a distributed/opportunistic manner in response to a topology change within the multihop network so as to optimize the performance of a connection between a source node and a destination node. The types of resources that can be adapted include for example: (1) a route; (2) a channel; and/or (3) physical layer parameters. And, the different types of topology changes that can occur include for example: (1) movement of a node; (2) quality variations in a channel between the source node and the destination node; (3) changes in traffic patterns in the multihop network; (4) changes in transmit patterns (e.g., power, beamforming direction) in the multihop network; and (5) changes in resource allocations in the multihop network.
摘要翻译：本文描述了多跳网络和节点，其实施反应性路由协议，其使多跳网络的资源能够响应于多跳网络内的拓扑变化而以分布/机会主义的方式连续地进行调整，以便优化连接的性能在源节点和目的地节点之间。可以调整的资源类型包括：（1）路由; （2）通道; 和/或（3）物理层参数。并且，可能发生的不同类型的拓扑变化包括例如：（1）节点的移动; （2）源节点与目的节点之间的信道质量变化; （3）多跳网络中流量模式的变化; （4）多跳网络中的发射模式（例如，功率，波束成形方向）的改变; 和（5）多跳网络资源分配的变化。

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