专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明申请

WO2008004916A1 MULTI-ANTENNA RELAY WITH SELF-INTERFERENCE CANCELLATION 审中-公开
标题翻译：具有自干扰消除的多天线继电器
公开(公告)号：WO2008004916A1
公开(公告)日：2008-01-10
申请号：PCT/SE2006/000829
申请日：2006-07-03
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LARSSON, Peter , PRYTZ, Mikael
发明人： LARSSON, Peter , PRYTZ, Mikael
IPC分类号： H04B7/15 , H04B1/38
CPC分类号： H04B7/15564
摘要： A wireless relay node (100) comprises a receiving side (110) and a transmitting side (120) adapted for concurrent reception and transmission of an information stream, and at least one of the two sides has multiple antennas for multi-antenna operation. In the internal design, the wireless relay node is further configured (130) for cancelling signal feedback from a multi-antenna dependent feedback channel from the transmitting side to the receiving side based on an N x M dimensional filter matrix (135) dependent on the multi-antenna dependent feedback channel, where at least one of N and M is greater than 1. In this way, self-interference cancellation of a multi-antenna dependent feedback signal from the output to the input of the wireless relay node is effectively obtained.
摘要翻译：无线中继节点（100）包括适于同时接收和发送信息流的接收侧（110）和发送侧（120），并且所述两侧中的至少一个具有用于多天线操作的多个天线。在内部设计中，无线中继节点被进一步配置（130），用于基于取决于所述发射侧的接收侧的N×M维滤波器矩阵（135）来消除来自多天线依赖反馈信道的信号反馈多天线相关反馈信道，其中N和M中的至少一个大于1.以这种方式，有效地获得从天线到输入端的多天线相关反馈信号的自干扰消除。

92. 发明申请

WO2007091930A1 LINK ADAPTATION AND POWER CONTROL WITH CONSUMED ENERGY MINIMIZATION 审中-公开
标题翻译：链路适应和功率控制与消耗能量最小化
公开(公告)号：WO2007091930A1
公开(公告)日：2007-08-16
申请号：PCT/SE2006/000176
申请日：2006-02-08
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LARSSON, Peter , ZHANG, Zhang
发明人： LARSSON, Peter , ZHANG, Zhang
IPC分类号： H04B7/005 , H04L1/00
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，同时最小化总消耗的能量。

93. 发明申请

WO2007064249A1 SCHEDULING IN A WIRELESS MULTI-HOP RELAY NETWORK 审中-公开
标题翻译：在无线多路继电器网络中进行调度
公开(公告)号：WO2007064249A1
公开(公告)日：2007-06-07
申请号：PCT/SE2005/001789
申请日：2005-11-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LARSSON, Peter
发明人： LARSSON, Peter
IPC分类号： H04B7/02 , H04B7/15 , H04L12/56 , H04L27/26
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 first aspect of the invention relates to a wireless relaying network having a number of network nodes including a designated originating node (10), at least one relaying node (20), and at least two receiving nodes (30). Basically, the designated originating node (10) transmits a pilot signal, and the relaying node(s) (20) receives and forwards the pilot signal to the receiving nodes (30), each of which measures channel quality based on the received pilot signal. In accordance with the invention, at least part of the receiving nodes (30) feed information on the measured channel quality all the way back to the designated originating node (10), and the originating node (10) then schedules data for transmission to at least one selected node of the receiving nodes (30) based on the received channel quality information. Subsequently, the designated originating node (10) transmits data to the selected receiving node(s) via the same relaying node(s) (20) that forwarded the pilot signal. In this way, multi-user diversity scheduling is introduced to relaying networks in a unique and efficient manner that provides significant data rate enhancements.
摘要翻译：本发明的第一方面涉及具有包括指定的始发节点（10），至少一个中继节点（20）和至少两个接收节点（30）的多个网络节点的无线中继网络。基本上，指定的起始节点（10）发送导频信号，并且中继节点（20）接收并转发导频信号到接收节点（30），每个节点（30）基于接收到的导频信号来测量信道质量。根据本发明，接收节点（30）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（10），并且始发节点（10）然后调度数据以便传输到基于所接收的信道质量信息，接收节点（30）的至少一个选定节点。随后，指定的发起节点（10）通过转发导频信号的相同的中继节点（20）向所选择的接收节点发送数据。以这种方式，以独特而有效的方式引入多用户分集调度来中继网络，提供显着的数据速率增强。

94. 发明申请

WO2007043921A1 METHOD AND ARRANGEMENT FOR LINK COST DETERMINATION FOR ROUTING IN WIRELESS NETWORKS 审中-公开
标题翻译：用于在无线网络中路由的链路成本确定的方法和装配
公开(公告)号：WO2007043921A1
公开(公告)日：2007-04-19
申请号：PCT/SE2005/001526
申请日：2005-10-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LARSSON, Peter
发明人： LARSSON, Peter
IPC分类号： H04L12/56 , H04L12/28
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。

95. 发明申请

WO2006088400A1 METHOD AND ARRANGEMENT FOR COOPERATIVE RELAYING 审中-公开
标题翻译：合作中继的方法与安排
公开(公告)号：WO2006088400A1
公开(公告)日：2006-08-24
申请号：PCT/SE2005/000227
申请日：2005-02-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LARSSON, Peter , HU, Rong , ZHANG, Zhang
发明人： LARSSON, Peter , HU, Rong , ZHANG, Zhang
IPC分类号： H04L1/06 , H04B7/15
CPC分类号： H04B7/0632 , H04B7/15592 , H04L1/0625
摘要： In a method for relaying deployment in a wireless communication system comprising a transmitting node with multiple antennas for communicating with at least one receiving node via at least two relay nodes, a data stream at the transmitting node is partitioned (S1) into at least two data substreams, each of which is beamformed and transmitted (S2) over a first link to a respective of the relay nodes; subsequently at least one restorable representation of each received substream is forwarded (S3) over a second link to the receiving node from the two relay nodes; and finally the received and decoded representations are multiplexed (S4) to form an output signal at the receiving node corresponding to the original data stream.
摘要翻译：在一种用于在包括具有多个天线的发射节点的无线通信系统中中继部署的方法中，用于经由至少两个中继节点与至少一个接收节点进行通信，所述发射节点处的数据流被划分为至少两个数据子流，其中每一个被波束形成并通过第一链路发送（S2）到相应的中继节点; 随后每个接收到的子流的至少一个可恢复表示通过来自两个中继节点的接收节点的第二链路转发（S3）最后将接收和解码的表示复用（S4），以在与原始数据流对应的接收节点处形成输出信号。

96. 发明申请

WO2005062504A1 METHOD AND SYSTEM OF RADIO COMMUNICATIONS OF TRAFFIC WITH DIFFERENT CHARACTERISTIC 审中-公开
标题翻译：具有不同特征的无线电通信方法与系统
公开(公告)号：WO2005062504A1
公开(公告)日：2005-07-07
申请号：PCT/SE2003/002055
申请日：2003-12-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LARSSON, Peter , DAHLMAN, Erik
发明人： LARSSON, Peter , DAHLMAN, Erik
IPC分类号： H04B7/26
CPC分类号： H04W40/02 , H04W28/18 , H04W72/10 , H04W84/042 , Y02D70/1242 , Y02D70/1244 , Y02D70/30
摘要： The present invention relates to communications. More especially it relates to communications over radio links subject to fading or otherwise intermittently unreliable. Particularly it relates to high data rate communications and combinations of conventional and opportunistic communications within a communications system.
摘要翻译：本发明涉及通信。更具体地说，它涉及通过无线电链路进行的通信，这些通信可能会褪色或以其他方式间歇性地不可靠。特别地，它涉及通信系统中的高数据速率通信和常规和机会性通信的组合。

97. 发明申请

WO2005062496A1 A METHOD FOR DETERMINING TRANSMIT WEIGHTS 审中-公开
标题翻译：一种确定发送权重的方法
公开(公告)号：WO2005062496A1
公开(公告)日：2005-07-07
申请号：PCT/SE2003/002071
申请日：2003-12-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , ASTELY, David , LARSSON, Peter
发明人： ASTELY, David , LARSSON, Peter
IPC分类号： H04B7/06
CPC分类号： H04B7/0632 , H04B7/0617 , H04L1/0026 , H04L27/261 , H04L27/2626
摘要： The present invention relates to beamforming in a multi-carrier multi-user communication system applying an adaptive method for determining transmit weights for the various antenna beams. A set of complex transmission weights is adapted in response to appropriate feedback information on transmission quality from receiving units in order to achieve a maximisation of a function of said quality indicator and thus optimise the transmission of the pilot signal.
摘要翻译：本发明涉及多载波多用户通信系统中的波束形成，其应用用于确定各种天线波束的发射权重的自适应方法。响应于来自接收单元的关于传输质量的适当反馈信息来适配一组复传输权重，以便实现所述质量指示符的功能的最大化，并且因此优化导频信号的传输。

98. 发明申请

WO2005060123A1 METHOD AND APPARATUS IN A MIMO BASED COMMUNICATION SYSTEM 审中-公开
标题翻译：基于MIMO的通信系统中的方法和装置
公开(公告)号：WO2005060123A1
公开(公告)日：2005-06-30
申请号：PCT/SE2004/001358
申请日：2004-09-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LARSSON, Peter , SIGNELL, Svante , ASTELY, David
发明人： LARSSON, Peter , SIGNELL, Svante , ASTELY, David
IPC分类号： H04B7/06
CPC分类号： H04L1/0028 , H04B7/0417 , H04B7/0443 , H04B7/0452 , H04B7/0626 , H04B7/0628 , H04L1/0015 , H04L1/06 , H04W52/42
摘要： Communication in a MIMO network is optimized by selecting a first set of users comprising at least one user, selecting a second set of users not comprised in the first set, adapting communication parameters for the first set of users according to a first principle suitable, e.g. SVD, adapting communication parameters for the sec-ond set of users according to a second principle, e.g. opportunistic MIMO, and transmitting to the first set of user terminals according to the first communication parameters and to the second set of user terminals according to the second commu-nication parameters. In this way, communication with one or a few users can be op-timized while network resources can be used in an efficient way also for other users.
摘要翻译：通过选择包括至少一个用户的第一组用户，选择未包括在第一组中的第二组用户，根据适合的第一原则，适应第一组用户的通信参数来优化MIMO网络中的通信。 SVD，根据第二原理，适应第二组用户的通信参数，例如。机会性MIMO，并且根据第一通信参数向第一组用户终端和根据第二通信参数发送到第二组用户终端。这样，与一个或几个用户的通信可以被优化，而网络资源可以以其他用户有效的方式使用。

99. 发明申请

WO2004107693A1 METHOD AND SYSTEM FOR WIRELESS COMMUNICATION NETWORKS USING RELAYING 审中-公开
标题翻译：使用继电器的无线通信网络的方法和系统
公开(公告)号：WO2004107693A1
公开(公告)日：2004-12-09
申请号：PCT/SE2004/000825
申请日：2004-05-27
申请人： TELEFONAKTIEBOLAGET LM Ericsson (publ) , LARSSON, Peter
发明人： LARSSON, Peter
IPC分类号： H04L25/52
CPC分类号： H04B7/15592 , H04B7/022 , H04B7/026 , H04B7/15528 , H04B7/2606 , H04L1/0001 , H04L1/0021 , H04L1/0618 , H04L5/0007 , H04L5/0035 , H04L5/0048 , H04L25/0206 , H04L25/0224 , H04L25/20 , H04L27/2602 , H04L27/2655 , H04L2001/0097 , H04W52/40 , H04W52/46 , H04W88/02
摘要： The present invention relates to wireless networks using relaying. In the method according to the present invention of performing communication in a two-hop wireless communication network, a transmitter 210, a receiver 220 and at least one relay station 215 are engaged in a communication session The relay station 215 forwards signals from a first link between the transmitter 210 and the relay station 215 to a second link between the relay stations 215 and the receiver 220. The forwarding performed by the at least one relay station 215 is adapted as a response to estimated radio channel characteristics of at least the first link. Preferably the forwarding is adapted as a response to estimated radio channel characteristics of both the first and second link.
摘要翻译：本发明涉及使用中继的无线网络。在根据本发明的在两跳无线通信网络中执行通信的方法中，发射机210，接收机220和至少一个中继站215参与通信会话。中继站215将信号从第一链路在发射机210和中继站215之间到中继站215和接收机220之间的第二链路。由至少一个中继站215进行的转发被适配为对至少第一链路的估计无线电信道特性的响应。优选地，转发被适配为对第一和第二链路的估计无线电信道特性的响应。

100. 发明申请

WO2004023736A1 METHOD AND DEVICES FOR EFFICIENT DATA TRANSMISSION LINK CONTROL IN MOBILE MULTICAST COMMUNICATION SYSTEMS 审中-公开
标题翻译：移动通信系统中有效数据传输链路控制的方法和设备
公开(公告)号：WO2004023736A1
公开(公告)日：2004-03-18
申请号：PCT/EP2002/010025
申请日：2002-09-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , SACHS, Joachim , MEYER, Michael , WAGER, Stefan , HUSCHKE, Jörg , LARSSON, Mikael , LARSSON, Peter
发明人： SACHS, Joachim , MEYER, Michael , WAGER, Stefan , HUSCHKE, Jörg , LARSSON, Mikael , LARSSON, Peter
IPC分类号： H04L12/56
CPC分类号： H04L1/1635 , H04L1/1642 , H04L1/1685 , H04L1/1832 , H04L1/187 , H04L12/1868 , H04L12/189 , H04L47/10 , H04L47/14 , H04L47/15 , H04L47/27 , H04L2001/0093 , H04W56/00
摘要： A method for a data transmission with ARQ protocol using multicast groups such as GSM, GPRS or UMTS in a mobile communication system is described. Data is transmitted in data blocks (PDU) from a transmitter (T) to a plurality of receivers (R1-RM), said data blocks (PDU) being identifiable by an identification (e.g. a sequence number). The receivers (R1-RM) send status indications to the transmitter (T) whether a data block (PDU) is correctly received. The transmitter (T) is adapted to perform retransmissions according to the status indications and has a transmission window comprising the transmission status for the data blocks (PDU) according to their identification. In the method, a synchronization to the transmitter (T) is performed for at least one first of said receivers (Ri), wherein a range of identifications of transmitted data block (PDU) is selected in said synchronization. The transmitter (T) deletes the transmission status for the selected range of identifications from the transmitter window and the first receiver (Ri) stops sending status indications for the data blocks (PDU) corresponding to the selected range of identifications. In addition, a transmitter and a computer program implementing the method are described. As an example the transmitter can be a RNC extending the RLC and MAC-HSPDA protocols standardized by 3GPP for obtaining efficient and reliable point-to-multipoint radio links.
摘要翻译：描述了在移动通信系统中使用诸如GSM，GPRS或UMTS之类的多播组的ARQ协议进行数据传输的方法。数据在数据块（PDU）中从发射机（T）发送到多个接收机（R1-RM），所述数据块（PDU）可通过识别（例如序列号）来识别。接收机（R1-RM）向发射机（T）发送状态指示是否正确接收到数据块（PDU）。发射机（T）适于根据状态指示执行重发，并具有包括根据其标识的数据块（PDU）的传输状态的传输窗口。在该方法中，对所述接收机（Ri）中的至少一个执行与发射机（T）的同步，其中在所述同步中选择发送数据块（PDU）的标识的范围。发射机（T）从发射机窗口删除所选择的标识范围的传输状态，并且第一接收机（Ri）停止发送对应于所选择的标识范围的数据块（PDU）的状态指示。另外，描述实现该方法的发射机和计算机程序。作为示例，发射机可以是扩展由3GPP标准化的RLC和MAC-HSPDA协议的RNC，用于获得有效和可靠的点对多点无线电链路。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式