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51. 发明申请

US20090052327A1 End-to-end considerate link control and routing in a multihop network 有权
标题翻译：在多跳网络中端到端的周到的链路控制和路由
公开(公告)号：US20090052327A1
公开(公告)日：2009-02-26
申请号：US11919880
申请日：2005-07-01
申请人： Peter Larsson , Zhang Zhang
发明人： Peter Larsson , Zhang Zhang
IPC分类号： H04L1/00
CPC分类号： H04L45/00 , H04L45/123 , H04L45/124 , H04W28/18 , H04W40/08 , H04W40/12 , H04W40/16 , H04W52/267 , H04W52/46 , Y02D70/142 , Y02D70/22 , Y02D70/324 , Y02D70/34
摘要： By introducing a novel parameter common to all links along the entire multihop route it is possible to more flexibly allocate, for each of a number of the links, a set of three interdependent link transmit parameters representative of link transmit energy, link transmit time or link transmit bandwidth or link code word consumption, and link transmit power. Basically, the common parameter is determined based on a given end-to-end (ETE) transmit parameter constraint for the entire multihop route. The idea is then to assign or allocate, for each considered link, the three interdependent link transmit parameters based on the common parameter and local link characteristics. In this way, all three link transmit parameters may (and generally will) be different between at least two links on the route when the links have different link characteristics, assuming that each link transmit parameter is also dependent on the local link characteristics. Preferably, the common parameter is determined in the process of optimizing a given objective ETE function.
摘要翻译：通过引入沿着整个多跳路线的所有链路共同的新颖参数，对于多个链路中的每一个，可以更灵活地分配一组三个相互依赖的链路传输参数，其代表链路传输能量，链路传输时间或链路传输带宽或链路码字消耗，并链路传输功率。基本上，基于针对整个多跳路由的给定端到端（ETE）传输参数约束来确定公共参数。然后，该思想是根据公共参数和本地链路特性为每个考虑的链路分配或分配三个相互依赖的链路传输参数。以这种方式，假设每个链路传输参数也取决于本地链路特性，则当链路具有不同的链路特性时，所有三个链路传输参数可能（并且通常将）在路由上的至少两个链路之间是不同的。优选地，在优化给定的目标ETE功能的过程中确定公共参数。

52. 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。

53. 发明申请

US20080298250A1 Method and Arrangement for Link Cost Determination for Routing in Wireless Networks 有权
标题翻译：无线网络路由的链路成本确定方法与布置
公开(公告)号：US20080298250A1
公开(公告)日：2008-12-04
申请号：US12065646
申请日：2005-10-12
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： G01R31/08
CPC分类号： H04W40/16 , H04L45/123 , Y02D70/142 , Y02D70/22 , Y02D70/34
摘要： The invention relates to determination of a link cost employable in route determination and data forwarding in a multihop communication network (1). This link cost is adapted to the particular characteristics of wireless contention-based networks (1), in which both network nodes (10, 20) involved in node-to-node data forwarding block neighbor nodes (30, 40, 50) that have to defer medium access during the data forwarding. The link cost is determined based on the estimated total number of nodes (30, 40, 50) that are blocked if data is forwarded on a wireless link (12) from a node (10) to another node (20). The link cost may also be based on a per bit normalized expected transmit duration for the data forwarding in combination with said estimated number of nodes. Usage of the link cost in route determination minimizes the number of truly blocked nodes in the network (1) and increased the network capacity.
摘要翻译：本发明涉及确定在多跳通信网络（1）中的路由确定和数据转发中可使用的链路成本。该链路成本适应于基于无线竞争的网络（1）的特定特征，其中参与节点到节点数据转发的相邻节点（30,40,50）中的两个网络节点（10,20）具有在数据转发期间推迟媒体访问。如果数据在无线链路（12）上从节点（10）转发到另一个节点（20），则基于估计的节点总数（30,40,50）来确定链路成本。链路成本还可以基于与所述估计的节点数相结合的数据转发的每位归一化的预期发送持续时间。在路由确定中使用链路成本可以最大限度地减少网络中真实阻塞的节点数量（1），增加网络容量。

54. 发明授权

US07440763B2 Multi-access call setup 有权
标题翻译：多路访问呼叫设置
公开(公告)号：US07440763B2
公开(公告)日：2008-10-21
申请号：US10547781
申请日：2003-04-11
申请人： Johan Lundsjo , Ramon Espineira , Joakim Bergström , Peter Larsson
发明人： Johan Lundsjo , Ramon Espineira , Joakim Bergström , Peter Larsson
IPC分类号： H04Q7/20
CPC分类号： H04W68/12 , H04W48/20 , H04W76/10 , H04W88/06
摘要： In a multi-access communication system, a terminal is kept reachable through a first access network, which is most resource efficient one of the available access networks for keeping the terminal reachable. The terminal scans passively for the existence of usable base stations for other access networks of the system and reports data associated with such existences to the first access network. When a request for a call to the terminal is received, a paging is performed in the first access network. The paging message comprises information about preferred access network, based on the reported data of the existence of usable base stations or access points of other access networks. The terminal connects to the preferred access network and performs a call set-up directly in the preferred access network.
摘要翻译：在多址通信系统中，可以通过第一接入网络来保持终端的可达性，该第一接入网是用于保持终端可达的可用接入网之一资源最为有效的一种。该终端被动地扫描用于系统的其他接入网络的可用基站的存在，并将与这种存在相关联的数据报告给第一接入网络。当接收到对终端的呼叫的请求时，在第一接入网络中执行寻呼。基于报告的可用基站的存在的数据或其他接入网络的接入点，寻呼消息包括关于优选接入网络的信息。该终端连接到优选的接入网络，并在首选的接入网络中直接进行呼叫建立。

55. 发明申请

US20080165671A1 Transmitter Apparatus and Method for Transmitting Packet Data Units in a Communication System 有权
标题翻译：用于在通信系统中发送分组数据单元的发射机装置和方法
公开(公告)号：US20080165671A1
公开(公告)日：2008-07-10
申请号：US11722245
申请日：2004-12-21
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： H04J9/00 , H04J11/00
CPC分类号： H04L27/2614 , H04L25/03866 , H04L27/3411
摘要： In a communication system, when packet data units (PDUs) to be transmitted from a transmitter apparatus are modulated according to Orthogonal Frequency Division Multiplexing (OFDM), the waveforms representing the modulated PDUs will experience different peak to average ratio values (PAR) making the PDUs differently sensitive to non-ideal transmitter characteristics. To minimize errors in the transmitted PDUs, at least two PDUs (304, 305, 306) are scrambled and modulated in parallel and substantially simultaneously in the transmitter (100), and the PAR values of the at least two PDUs (304, 305, 306) are determined at each transmit instance. The measured PAR values of the at least two PDUs are compared in a scheduler (310), and the scheduler selects for transmission the PDU with the lowest PAR value. The scheduler (310) then instructs the transmitter (100) to transmit the selected PDU. If the PDUs that were not selected for transmission are re-scrambled and re-modulated before they are transmitted, the average PAR value for a transmitted PDU can be lowered by 2-3 dB with the invention if 8 PDUs are compared at each transmit instance.
摘要翻译：在通信系统中，当根据正交频分复用（OFDM）调制要从发射机装置发送的分组数据单元（PDU）时，表示调制PDU的波形将经历不同的峰均比（PAR），使得 PDU对不理想的发射机特性不敏感。为了使传输的PDU中的错误最小化，至少两个PDU（304,305,306）在发射机（100）中并行并且基本上同时进行加扰和调制，并且至少两个PDU（304,305,306） 306）在每个发送实例处确定。在调度器（310）中对至少两个PDU的测量的PAR值进行比较，并且调度器选择用于发送具有最低PAR值的PDU。调度器（310）然后指示发射机（100）发送所选择的PDU。如果未被选择用于发送的PDU在发送之前被重新加扰和重新调制，则发送的PDU的平均PAR值可以降低2-3dB，如果在每个发送实例上比较8个PDU，则本发明。

56. 发明申请

US20080076465A1 Instantaneous joint transmit power control and link adaptation for RTS/CTS based channel access 有权
标题翻译：用于基于RTS / CTS的信道接入的瞬时联合发射功率控制和链路自适应
公开(公告)号：US20080076465A1
公开(公告)日：2008-03-27
申请号：US11947306
申请日：2007-11-29
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： 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.
摘要翻译：基于发送请求发送（RTS-CTS）信道接入方案的闭环链路调整方法包括以下步骤。指定一个站作为始发站。在预期的DATA传输之前，从发起站发送具有预定发射功率的RTS帧，发出信道，使得可以在指定的接收站评估接收特性。响应于始发站，以具有链路调整指令的方式，从具有来自接收站的预定发射功率发送CTS帧。将DATA帧从始发站发送到符合链路调整指令的接收站帧，达到发起站功能的程度。并且响应于来自接收站的发起站发送指示DATA帧接收结果的确认（ACK）帧。

57. 发明申请

US20050013253A1 Method for multihop routing for distributed wlan networks 有权
标题翻译：分布式wlan网络的多跳路由方法
公开(公告)号：US20050013253A1
公开(公告)日：2005-01-20
申请号：US10488512
申请日：2002-09-11
申请人： Jan Lindskog , Gunnar Rydnell , Peter Larsson
发明人： Jan Lindskog , Gunnar Rydnell , Peter Larsson
IPC分类号： H04B7/26 , H04L12/26 , H04L12/28 , H04L12/56 , H04W28/18 , H04W28/24 , H04W40/02 , H04W40/24 , H04W74/08 , H04W76/02 , H04W80/00 , H04W84/12
CPC分类号： H04W28/18 , H04L45/00 , H04L45/121 , H04L47/10 , H04L47/14 , H04L47/2408 , H04L47/283 , H04W28/24 , H04W40/02 , H04W40/246 , H04W74/08 , H04W76/10 , H04W80/00 , H04W84/12
摘要： A method for multihop packet trasmissions in a wireless network involves establishing a multihop route through the wireless network. After establishment of the multihop route, transmission protocol parameter are altered to minimize delays for transmissions over the multihop route and at least one packet is transmitted over the multihop route according to the altered transmission protocol parameters. In a first embodiment, the altering of the transmission protocol parameters includes setting a NAV value at each node of the multihop route for a duration of the packet transmissions over the route. In an alternative embodiment, multihop packets are assigned a higher QoS value.
摘要翻译：一种用于无线网络中的多跳分组调度的方法涉及通过无线网络建立多跳路由。在建立多跳路由之后，改变传输协议参数以最小化在多跳路由上的传输的延迟，并且根据改变的传输协议参数在多跳路由上传输至少一个分组。在第一实施例中，传输协议参数的改变包括在该路由上的分组传输的持续时间内设置多跳路由的每个节点处的NAV值。在替代实施例中，分配多跳数据包较高的QoS值。

58. 发明授权

US06842487B1 Cyclic delay diversity for mitigating intersymbol interference in OFDM systems 有权
标题翻译：循环延迟分集，用于减轻OFDM系统中的符号间干扰
公开(公告)号：US06842487B1
公开(公告)日：2005-01-11
申请号：US09667504
申请日：2000-09-22
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： H04J11/00 , H04B7/06 , H04L1/06 , H04L27/26 , H04K1/10 , H04L27/28
CPC分类号： H04B7/0671 , H04B7/0676 , H04L1/06 , H04L5/0023 , H04L27/2602
摘要： A method and/or an apparatus for mitigating intersymbol interference. In systems which employ transmission diversity when transmitting symbols which have a guard interval, the multiple versions of the transmitted symbols have the samples of the transmitted symbols shifted relative to each version transmitted. The shifted samples of the transmitted symbol are shifted from the end of the transmitted symbol into the beginning of the transmitted symbol. A last number of samples of the transmitted symbol are copied and placed in the guard interval which precedes the symbol. The guard interval and the symbol are transmitted to a receiver.
摘要翻译：一种减轻符号间干扰的方法和/或装置。在发送具有保护间隔的符号时采用传输分集的系统中，所发送的符号的多个版本具有相对于发送的每个版本移动的发送符号的样本。发送符号的移位样本从发送符号的结尾移动到发送符号的开头。发送符号的最后数量的样本被复制并放置在符号之前的保护间隔中。保护间隔和符号被发送到接收器。

59. 发明授权

US06609012B1 Mobile terminal initiated and assisted antenna selection 有权
标题翻译：移动终端启动和辅助天线选择
公开(公告)号：US06609012B1
公开(公告)日：2003-08-19
申请号：US09348048
申请日：1999-07-06
申请人： Göran Malmgren , Hui Li , Mikael Larsson , Peter Larsson
发明人： Göran Malmgren , Hui Li , Mikael Larsson , Peter Larsson
IPC分类号： H04Q720
CPC分类号： H04W16/24 , H04B7/061 , H04W24/00 , H04W48/20 , H04W74/00 , H04W84/042 , H04W84/12
摘要： In a cellular, broadband radio access network, such as a High Performance Local Area Network Type 2 (HIPERLAN/2), which employs multiple antennas per base station, the process of identifying and selecting the most appropriate base station antenna to support a given mobile terminal may be accomplished more effectively by allowing the mobile terminal to initiate antenna selection and, thereafter, to identify the most appropriate one of the multiple base station antennas. By utilizing the mobile terminal in this capacity, the process of antenna selection can be accomplished more effectively even if there is relatively little uplink communication between the mobile terminal and its corresponding base station.
摘要翻译：在诸如每个基站采用多个天线的高性能局域网类型2（HIPERLAN / 2）的蜂窝式宽带无线电接入网络中，识别和选择最合适的基站天线以支持给定移动台终端可以通过允许移动终端发起天线选择并且此后识别多个基站天线中最合适的一个天线来更有效地实现。通过利用该容量的移动终端，即使在移动终端与其对应的基站之间存在相对较少的上行链路通信，也可以更有效地实现天线选择的处理。

60. 发明授权

US08798099B2 Method and arrangement in a wireless communication system 有权
标题翻译：无线通信系统中的方法和布置
公开(公告)号：US08798099B2
公开(公告)日：2014-08-05
申请号：US13130990
申请日：2010-07-05
申请人： Peter Larsson
发明人： Peter Larsson
IPC分类号： H04J13/00
CPC分类号： H04B7/0669 , H04B7/0408 , H04B7/0697
摘要： The present invention relates to a method and a transmitting unit in a wireless communication system. The transmitting unit is configured to transmit over multiple antennas pointing in different directions. Each antenna provides a beam partially overlapping with at least one other antenna. The method for the transmitting unit comprises switching in time between transmitting (910) in a unicast mode over each of said at least two antennas, and transmitting (920) in a broadcast mode concurrently over all of the at least two antennas using a space time code.
摘要翻译：本发明涉及无线通信系统中的方法和发送单元。发送单元被配置为在指向不同方向的多个天线上进行发送。每个天线提供与至少一个其他天线部分重叠的波束。用于发送单元的方法包括在所述至少两个天线中的每一个上以单播模式发送（910）之间的时间切换，并且使用空间时间在所有所述至少两个天线中同时以广播模式发送（920）码。

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