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11. 发明申请

WO2007126346A1 POWER CONTROL IN A WIRELESS SYSTEM HAVING MULTIPLE INTERFERING COMMUNICATION RESOURCES 审中-公开
标题翻译：具有多个干扰通信资源的无线系统中的功率控制
公开(公告)号：WO2007126346A1
公开(公告)日：2007-11-08
申请号：PCT/SE2006/000517
申请日：2006-04-27
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LARSSON, Peter
发明人： LARSSON, Peter
IPC分类号： H04B7/005
CPC分类号： H04W52/26 , H04W52/225 , H04W52/242 , H04W52/265 , H04W52/267 , H04W52/343 , H04W52/367
摘要： A wireless communication system having multiple interfering communication resources is considered. A power control procedure is based on assigning (Sl) a common control parameter to the considered communication resources, and using the control parameter together with a unique power control condition (S2) for determining the individual transmit power parameters of the communication resources. In particular, the idea is to determine, for each one of at least a subset of said communication resources, an individual transmit power parameter based on a power control condition implying that the total received power divided with the path gam of the communication resource should correspond to the common control parameter (S2). The determined transmit power parameters are then used for controlling (S3) the transmit powers of the corresponding communication resources. By using the proposed power control condition when determining the transmit power parameters, and then adapting the transmit data rates according to the resulting link quality, it is possible to maximize aggregate data rate for any given amount of total invested power.
摘要翻译：考虑具有多个干扰通信资源的无线通信系统。功率控制过程基于将公共控制参数（S1）分配给所考虑的通信资源，并且使用控制参数以及用于确定通信资源的各个发射功率参数的唯一功率控制条件（S2）。特别地，该思想是为了确定所述通信资源的至少一个子集中的每一个，基于功率控制条件的单个发射功率参数，这意味着与通信资源的路径gam分开的总接收功率应该对应到公共控制参数（S2）。所确定的发射功率参数然后用于控制（S3）相应通信资源的发射功率。通过在确定发射功率参数时使用所提出的功率控制条件，然后根据所得到的链路质量来调整发送数据速率，可以对任何给定总投资功率的总量数据速率进行最大化。

12. 发明申请

WO2006096097A1 METHOD AND ARRANGEMENT FOR ADVANCED ROUTING METRICS IN MULTIHOP NETWORKS 审中-公开
标题翻译：多媒体网络中高级路由度量的方法和布置
公开(公告)号：WO2006096097A1
公开(公告)日：2006-09-14
申请号：PCT/SE2005/000339
申请日：2005-03-08
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LARSSON, Peter , JOHANSSON, Niklas , HU, Rong , ZHANG, Zhang
发明人： LARSSON, Peter , JOHANSSON, Niklas , HU, Rong , ZHANG, Zhang
IPC分类号： H04L12/56 , H04L12/28
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. A basic idea of the invention is therefore to determine link cost (S3) 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 (S1) and/or the number of transmit and receive antennas (S2) 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 (S4), and packet forwarding (S5).
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。因此，本发明的基本思想是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（S3），其中至少一个节点被配置为与多个节点一起操作天线提供多个通道。例如，可以基于显式信道矩阵估计（S1）和/或发射和接收天线（S2）的数量或涉及节点的天线能力的其他信息来确定这些多信道特征。所确定的链路成本信息随后可以与用于路由确定（S4）和分组转发（S5）的附加路由成本信息一起使用。

13. 发明申请

WO2006085801A1 QUALITY-BASED DATA SCHEDULING 审中-公开
标题翻译：基于质量的数据调度
公开(公告)号：WO2006085801A1
公开(公告)日：2006-08-17
申请号：PCT/SE2005/000182
申请日：2005-02-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , JOHANSSON, Niklas , LARSSON, Peter , MEYER, Michael
发明人： JOHANSSON, Niklas , LARSSON, Peter , MEYER, Michael
IPC分类号： H04L1/00
CPC分类号： H04L1/1664 , H04L1/0026 , H04L1/0059 , H04L1/1812 , H04L1/1887 , H04L2001/0097
摘要： The present invention relates to quality-based scheduling of data in wireless networks (1). In this scheduling, quality information (30) representing the degree of decodability of previously transmitted but not correctly received and not successfully decoded data packets (10) is estimated in receiving communications nodes (200). This quality information (30) is reported back to the node (100) that transmitted the packet (10). The quality information (30) will be used by the transmitting node (100) when scheduling subsequent data transmissions. In this scheduling process, at least one of selection of: I) receiving node(s) (200), to which a second data packet (20) is to be forwarded; ii) a type of the data in the second packet (20); and/or iii) a data flow, to which the second packet (20) belongs, is performed based on the quality information (30).
摘要翻译：本发明涉及无线网络（1）中的基于质量的数据调度。在该调度中，在接收通信节点（200）中估计表示先前发送但未正确接收并且未成功解码的数据分组（10）的可解码度的质量信息（30）。该质量信息（30）被报告给发送分组（10）的节点（100）。当调度后续数据传输时，发送节点（100）将使用质量信息（30）。在该调度处理中，对第一数据分组（20）进行转发的以下各项中的至少一个：I）接收节点（200）进行选择; ii）第二分组（20）中的数据的类型; 和/或iii）基于质量信息（30）执行第二分组（20）所属的数据流。

14. 发明申请

WO2006068543A1 TRANSMITTER APPARATUS AND METHOD FOR TRANSMITTING PACKET DATA UNITS IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在通信系统中发送分组数据单元的发送装置和方法
公开(公告)号：WO2006068543A1
公开(公告)日：2006-06-29
申请号：PCT/SE2004/001946
申请日：2004-12-21
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LARSSON, Peter
发明人： LARSSON, Peter
IPC分类号： H04L27/26 , H04L25/03
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。

15. 发明申请

WO2006041403A1 METHOD AND SYSTEM OF COMMUNICATIONS 审中-公开
标题翻译：通信方法与系统
公开(公告)号：WO2006041403A1
公开(公告)日：2006-04-20
申请号：PCT/SE2005/001525
申请日：2005-10-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LARSSON, Peter , JOHANSSON, Niklas
发明人： LARSSON, Peter , JOHANSSON, Niklas
IPC分类号： H04L12/56
CPC分类号： H04L47/626 , H04L45/26 , H04L47/50 , H04L47/522 , H04W40/12 , Y02D70/122 , Y02D70/1242 , Y02D70/34
摘要： The present invention relates to communications. More especially it relates to multiple access communications over channels of diverse channel qualities, e.g. signal to noise and interference ratios, varying over time.
摘要翻译：本发明涉及通信。更具体地说，它涉及通过不同信道质量的信道的多址接入通信，例如，信噪比和干扰比随时间变化。

16. 发明申请

WO2005064863A1 METHOD AND ARRANGEMENT IN WIRELESS AD HOC OR MULTIHOP NETWORKS 审中-公开
标题翻译：无线广域网或多业务网络中的方法和布置
公开(公告)号：WO2005064863A1
公开(公告)日：2005-07-14
申请号：PCT/EP2004/014668
申请日：2004-12-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LARSSON, Peter , JOHANSSON, Niklas, J.
发明人： LARSSON, Peter , JOHANSSON, Niklas, J.
IPC分类号： H04L12/56
CPC分类号： H04W40/248 , H04L45/26 , H04W8/005 , H04W28/22 , H04W40/08 , H04W40/246 , H04W40/30 , H04W52/0216 , H04W52/0219 , H04W52/0245 , H04W52/325 , H04W60/02 , H04W84/18 , Y02D70/1224 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/22 , Y02D70/324
摘要： The present invention relates to the use of beaconing or "hello" messages in wireless multihop or ad hoc communication networks. In the method according to the present invention beacon messages (HELLO messages) are transmitted between a plurality of radio nodes (205, 215) in an ad hoc or multihop network. The rate of which the radio nodes transmit their beacons is based on an estimate of the network dynamics. Also the transmit power of the beacons are preferably based on an estimate of the network dynamics. The radio nodes bases their estimate of the network dynamics on beacons received from neighboring radio nodes.
摘要翻译：本发明涉及在无线多跳或自组织通信网络中使用信标或“hello”消息。在根据本发明的方法中，在自组织或多跳网络中的多个无线电节点（205,215）之间传送信标消息（HELLO消息）。无线电节点传输信标的速率是基于网络动力学的估计。信标的发送功率也优选地基于网络动态的估计。无线电节点将其对网络动态的估计基于从相邻无线电节点接收的信标。

17. 发明申请

WO2005060170A1 FAST/OPPORTUNISTIC DISTRIBUTED RESOURCE REALLOCATION FOR ESTABLISHED CONNECTIONS IN A MULTIHOP NETWORK 审中-公开
标题翻译：在多个网络中建立连接的快速/机会性分配资源重新
公开(公告)号：WO2005060170A1
公开(公告)日：2005-06-30
申请号：PCT/SE2003/002040
申请日：2003-12-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LARSSON, Peter , JOHANSSON, Niklas
发明人： LARSSON, Peter , JOHANSSON, Niklas
IPC分类号： H04L12/28
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 (100, 400) and nodes (102a-102q and A-G) are described herein that implement a reactive routing protocol (200) that enables resources of the multihop network (100, 400) to be continuously adapted in a distributed/opportunistic manner in response to a topology change within the multihop network (100, 400) so as to optimize the performance of a connection between a source node (102a, A) and a destination node (102m, E). 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 (102a-102q and A-G); (2) quality variations in a channel between the source node (102a, A) and the destination node (102m, E); (3) changes in traffic patterns in the multihop network (100, 400); (4) changes in transmit patterns (e.g., power, beamforming direction) in the multihop network (100, 400); and (5) changes in resource allocations in the multihop network (100, 400).
摘要翻译：本文描述了多跳网络（100,400）和节点（102a-102q和AG），其实现反应式路由协议（200），其使多跳网络（100,400）的资源能够以分布式/机会性响应于多跳网络（100,400）内的拓扑变化的方式，以便优化源节点（102a，A）和目的地节点（102m，E）之间的连接的性能。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（102a-102q和A-G）的移动; （2）源节点（102a，A）和目的地节点（102m，E）之间的信道的质量变化; （3）多跳网络中流量模式的变化（100,400）; （4）在多跳网络（100,400）中的发射模式（例如，功率，波束成形方向）的变化; （5）多跳网络中资源分配的变化（100,400）。

18. 发明申请

WO2011145990A1 REDUCED POWER CONSUMPTION IN A WIRELESS COMMUNICATION SYSTEM WHILE PROVIDING ADEQUATE DIRECTIONAL RADIO COVERAGE 审中-公开
标题翻译：无线通信系统中提供充分的方向无线电覆盖的功耗降低
公开(公告)号：WO2011145990A1
公开(公告)日：2011-11-24
申请号：PCT/SE2010/050554
申请日：2010-05-21
申请人： Telefonaktiebolaget LM Ericsson (publ) , LARSSON, Peter
发明人： LARSSON, Peter
IPC分类号： H04B7/06
CPC分类号： H04B7/0671 , H04B7/0689 , H04W52/0206 , Y02D70/444
摘要： There is provided an arrangement for a wireless communication system that includes a set of power amplifiers (10-1, 10-2, 10-3) and a set of antennas (20-1, 20-2, 20-3) based on which at least two different configurations are provided, including a first configuration (1) of power amplifiers and antennas and a second configuration (2) of power amplifier(s) and antennas. The arrangement also includes switching circuitry (40) configured to switch between the configurations. The second configuration employs a smaller number of power amplifiers than the first configuration, and the second configuration has fewer power amplifiers than antennas where at least one power amplifier is connected to at least two antennas via respective antenna branches that are configured with different delays, as represented by delay elements (30-1, 30-2). A difference in delay between a pair of these antenna branches is based on a measure representative of the inverse bandwidth of a signal to be transmitted through the antennas.
摘要翻译：提供了一种用于无线通信系统的装置，其包括一组功率放大器（10-1,10-2,10-3）和一组天线（20-1,20-2,20-3），其基于其提供至少两种不同的配置，包括功率放大器和天线的第一配置（1）和功率放大器和天线的第二配置（2）。该装置还包括被配置为在配置之间切换的切换电路（40）。第二种配置采用比第一种配置更少数量的功率放大器，并且第二配置具有比天线更少的功率放大器，其中至少一个功率放大器经由配置有不同延迟的相应天线分支连接到至少两个天线，如由延迟元件（30-1,30-2）表示。一对这些天线分支之间的延迟差基于表示要通过天线发送的信号的反向带宽的度量。

19. 发明申请

WO2008066421A1 RELIABLE MULTICAST WITH LINEARLY INDEPENDENT DATA PACKET CODING 审中-公开
标题翻译：具有线性独立数据包编码的可靠多媒体
公开(公告)号：WO2008066421A1
公开(公告)日：2008-06-05
申请号：PCT/SE2006/001368
申请日：2006-11-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LARSSON, Peter
发明人： LARSSON, Peter
IPC分类号： H04L1/18 , H04L12/18
CPC分类号： H04L1/1887 , H04L1/1845 , H04L5/0044 , H04L5/0058 , H04L12/1868 , H04L2001/0093
摘要： Regular data packets are scheduled for transmission from a sender to multiple receivers in a multicast ARQ system. In a joint scheduling and encoding procedure, a composite data packet is formed as a weighted linear combination of regular data packets. The corresponding coding weights are adapted based on feedback information from the receivers about received data packets such the composite packet represents a new linearly independent coding of regular data packets different from any multicast data packet previously received each receiver in a selected set of the receivers during the multicast session. In addition, using a weight vector with at least two different non-zero coding weights adds a further degree of freedom and guarantees the ability to always form a composite data packet that represents a new linearly independent coding for transmission. The ability to transmit linearly independent data packets in at least a majority of the transmission instances will significantly improve the throughput performance for reliable multicasting, especially when the number of users is large.
摘要翻译：定期数据包被安排在组播ARQ系统中从发送方发送到多个接收者。在联合调度和编码过程中，形成复合数据分组作为常规数据分组的加权线性组合。相应的编码权重基于来自接收机的关于接收到的数据分组的反馈信息进行调整，使得该复合分组表示在所选择的一组接收机期间先前接收到每个接收机的接收机中的任何多播数据分组不同的常规数据分组的新的线性独立编码多播会话。此外，使用具有至少两个不同的非零编码权重的权重向量增加了进一步的自由度，并且保证总是形成表示用于传输的新的线性独立编码的复合数据分组的能力。在至少大部分传输实例中传输线性独立的数据包的能力将显着提高可靠多播的吞吐量性能，特别是当用户数量较多时。

20. 发明申请

WO2008008013A1 METHOD AND APPARATUS FOR INTERFERENCE REDUCTION 审中-公开
标题翻译：用于干扰减少的方法和装置
公开(公告)号：WO2008008013A1
公开(公告)日：2008-01-17
申请号：PCT/SE2006/050257
申请日：2006-07-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LARSSON, Peter , JOHANSSON, Niklas
发明人： LARSSON, Peter , JOHANSSON, Niklas
IPC分类号： H04B7/26 , H04Q7/30 , H04Q7/38
CPC分类号： H04L5/0062 , H04B17/345 , H04J11/0053 , H04L5/0035 , H04W88/08
摘要： A method and apparatus for reducing interference caused by an interfering signal are disclosed for use in an access node, such as a base station, communicating with at least one mobile terminal in a wireless network, the method comprising the fol- lowing steps: receiving information related to at least one data packet that is to be transmitted by a second access node to at least a second mobile terminal, receiving time-frequency information about the point in time when the at least one data packet will be transmitted from the second access node to the second mobile terminal, estimating the interfering signal based on the at least one data packet, cancelling interference based on the estimated interference signal at the point in time. This facilitates interference cancellation, especially in a network using distributed RRM.
摘要翻译：公开了一种用于减少由干扰信号引起的干扰的方法和装置，用于与无线网络中的至少一个移动终端进行通信的接入节点（例如基站），该方法包括以下步骤：接收信息涉及要由第二接入节点发送到至少第二移动终端的至少一个数据分组，接收关于从第二接入节点发送至少一个数据分组的时间点的时间 - 频率信息到所述第二移动终端，基于所述至少一个数据分组估计所述干扰信号，基于在所述时间点估计的干扰信号来消除干扰。这有助于干扰消除，特别是在使用分布式RRM的网络中。

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