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公开(公告)号：US20100322100A1
公开(公告)日：2010-12-23
申请号：US12867494
申请日：2009-01-28
Applicant: Lei Wan , David Astely , Muhammad Kazmi
Inventor： Lei Wan , David Astely , Muhammad Kazmi
IPC: H04W24/00
CPC classification number: H04W24/08 , H04B7/0413 , H04B7/0617 , H04J11/0093 , H04L5/0007 , H04L5/005 , H04L5/0053
Abstract: The present invention ensures that the UEs are able to make use of all the available reference signals that can be used in a cell for performing UE measurements, estimations or demodulations. That is achieved by indicating on a downlink common or shared channel, the MIMO mode settings associated with a specific network node. The indicated MIMO mode settings explicitly or implicitly indicate available common reference signals and/or dedicated reference signals to be used for said UE measurements, estimations or demodulations, which implies that measurements, estimations or demodulations can be performed based on said received indication.
Abstract translation: 本发明确保了UE能够利用可以在小区中用于执行UE测量，估计或解调的所有可用的参考信号。 这是通过在下行链路公共或共享信道上指示与特定网络节点相关联的MIMO模式设置来实现的。 所指示的MIMO模式设置明确或隐含地指示可用于所述UE测量，估计或解调的可用的公共参考信号和/或专用参考信号，这意味着可以基于所述接收到的指示来执行测量，估计或解调。
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2.发明申请公开(公告)号：US20100296410A1
公开(公告)日：2010-11-25
申请号：US12863861
申请日：2008-12-05
Applicant: Muhammad Kazmi , David Astely
Inventor： Muhammad Kazmi , David Astely
Abstract: The technology applies to a cellular radio network where each cell area is associated with a radio base station in which mobile terminals communicate with at least one of the base stations over a radio interface. The mobile terminals perform mobility-related measurements on downlink signals received from a corresponding neighbor cell during time slots configured for downlink transmission measurement. A configuration node receives input information, and based on that received input information, determines measurement time slot configuration information. The node provides the measurement time slot configuration information to the base stations so that the base stations may signal the measurement time slot configuration information to mobile terminals.
Abstract translation: 该技术适用于蜂窝无线电网络，其中每个小区区域与无线电基站相关联，其中移动终端通过无线电接口与至少一个基站通信。 在针对下行链路传输测量配置的时隙期间，移动终端对从对应的相邻小区接收的下行链路信号进行移动性相关测量。 配置节点接收输入信息，并根据接收的输入信息确定测量时隙配置信息。 节点向基站提供测量时隙配置信息，使得基站可以将测量时隙配置信息发送到移动终端。
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3.发明授权Method and apparatus for communicating to UE an indication of available RS, based on MIMO mode settings 有权用于基于MIMO模式设置向UE通信可用RS的指示的方法和装置公开(公告)号：US08917696B2
公开(公告)日：2014-12-23
申请号：US12867494
申请日：2009-01-28
Applicant: Lei Wan , David Astely , Muhammad Kazmi
Inventor： Lei Wan , David Astely , Muhammad Kazmi
CPC classification number: H04W24/08 , H04B7/0413 , H04B7/0617 , H04J11/0093 , H04L5/0007 , H04L5/005 , H04L5/0053
Abstract: The present invention ensures that the UEs are able to make use of all the available reference signals that can be used in a cell for performing UE measurements, estimations or demodulations. That is achieved by indicating on a downlink common or shared channel, the MIMO mode settings associated with a specific network node. The indicated MIMO mode settings explicitly or implicitly indicate available common reference signals and/or dedicated reference signals to be used for said UE measurements, estimations or demodulations, which implies that measurements, estimations or demodulations can be performed based on said received indication.
Abstract translation: 本发明确保了UE能够利用可以在小区中用于执行UE测量，估计或解调的所有可用的参考信号。 这是通过在下行链路公共或共享信道上指示与特定网络节点相关联的MIMO模式设置来实现的。 所指示的MIMO模式设置明确或隐含地指示可用于所述UE测量，估计或解调的可用的公共参考信号和/或专用参考信号，这意味着可以基于所述接收到的指示来执行测量，估计或解调。
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4.发明授权公开(公告)号：US08441951B2
公开(公告)日：2013-05-14
申请号：US12863861
申请日：2008-12-05
Applicant: Muhammad Kazmi , David Astely
Inventor： Muhammad Kazmi , David Astely
Abstract: The technology applies to a cellular radio network where each cell area is associated with a radio base station in which mobile terminals communicate with at least one of the base stations over a radio interface. The mobile terminals perform mobility-related measurements on downlink signals received from a corresponding neighbor cell during time slots configured for downlink transmission measurement. A configuration node receives input information, and based on that received input information, determines measurement time slot configuration information. The node provides the measurement time slot configuration information to the base stations so that the base stations may signal the measurement time slot configuration information to mobile terminals.
Abstract translation: 该技术适用于蜂窝无线电网络，其中每个小区区域与无线电基站相关联，其中移动终端通过无线电接口与至少一个基站通信。 在针对下行链路传输测量配置的时隙期间，移动终端对从对应的相邻小区接收的下行链路信号进行移动性相关测量。 配置节点接收输入信息，并根据接收的输入信息确定测量时隙配置信息。 节点向基站提供测量时隙配置信息，使得基站可以将测量时隙配置信息发送到移动终端。
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公开(公告)号：US09603101B2
公开(公告)日：2017-03-21
申请号：US14385954
申请日：2012-03-21
Applicant: Stefan Parkvall , David Astely , Erik Dahlman , Pal Frenger
Inventor： Stefan Parkvall , David Astely , Erik Dahlman , Pal Frenger
CPC classification number: H04W52/18 , H04W16/32 , H04W24/02 , H04W48/12 , H04W84/045
Abstract: A technique for operating a network node in a heterogeneously deployed network comprising network nodes of different nominal transmit powers and at least partially overlapping coverage areas is described. A method implementation of this technique comprises a step of operating the network node in a base mode in which the network node is configured to transmit terminal-specific demodulation reference signals for a first set of terminal devices. The method comprises the further step of selectively activating or deactivating operation of the network node in a Single Frequency Network (SFN) mode in which the network node is configured to transmit, for a second set of terminal devices, the same cell-specific reference nodes as another network node of the heterogeneously deployed network that has a larger nominal transmit power.
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Patent Agency Ranking
公开(公告)号：US09596019B2
公开(公告)日：2017-03-14
申请号：US12992921
申请日：2008-05-28
Applicant: Henrik Asplund , David Astely , Johan Nystrom , Tobias Tynderfeldt
Inventor： Henrik Asplund , David Astely , Johan Nystrom , Tobias Tynderfeldt
Abstract: The present invention relates to a group (G1, G2) of at least two transceiver units (1, 2; 3, 4) in at least one wireless communication system. The transceiver units (1, 2; 3, 4) in the group (G1, G2) are arranged for wireless communication with at least one other transceiver unit. The transceiver units (1, 2; 3, 4) in the group (G1, G2) are arranged to transmit signals with polarizations that are essentially parallel to each other when received by at least one transceiver unit for which the transmitted signals (5, 6) constitutes interference.The present invention also relates to a method, a node and a transceiver unit.
Abstract translation: 本发明还涉及一种方法，节点和收发机单元。
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7.发明授权公开(公告)号：US09565696B2
公开(公告)日：2017-02-07
申请号：US13370649
申请日：2012-02-10
Applicant: Ali Behravan , David Astely , George Jöngren
Inventor： Ali Behravan , David Astely , George Jöngren
CPC classification number: H04W72/1289 , H04L5/0048 , H04L5/005 , H04L5/0092 , H04L5/0094 , H04L25/0224 , H04L27/2611 , H04W72/042 , H04W72/14 , H04W74/006
Abstract: The present invention relates to methods and apparatus for providing a more flexible configuration of sounding reference signal, SRS, transmission. This is achieved by dynamically triggering a mobile terminal to transmit SRS. Thus, embodiments of the invention include a method implemented by a base station in a communications network that semi-statically configures some uplink symbols for periodic SRS transmission and other uplink symbols for aperiodic SRS transmission. The method includes dynamically determining whether an uplink symbol that has been semi-statically configured for aperiodic SRS transmission is to be used by a given mobile terminal at a given time for SRS transmission. The method then further includes signaling a terminal-specific instruction that indicates said determination to the given mobile terminal.
Abstract translation: 本发明涉及用于提供更灵活的探测参考信号SRS传输配置的方法和装置。 这通过动态触发移动终端来发送SRS来实现。 因此，本发明的实施例包括由通信网络中的基站实现的方法，其中半静态地配置用于周期性SRS传输的一些上行链路符号以及用于非周期SRS传输的其他上行链路符号。 该方法包括动态地确定给定移动终端在给定时间是否使用用于非周期性SRS传输的半静态配置的上行链路符号用于SRS传输。 该方法然后还包括向给定的移动终端发信号通知指示所述确定的终端专用指令。
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8.发明授权公开(公告)号：US08908789B2
公开(公告)日：2014-12-09
申请号：US13520880
申请日：2010-01-12
Applicant: Yang Hu , David Astely , Xinghua Song , Jianfeng Wang
Inventor： Yang Hu , David Astely , Xinghua Song , Jianfeng Wang
CPC classification number: H04L25/0226 , H04B7/0413 , H04B7/0678 , H04L5/0016 , H04L5/0023 , H04L5/005 , H04L5/0051 , H04L5/1469 , H04L25/0204 , H04L25/0224
Abstract: The prevent invention provides a method for performing channel estimation and detection in a Multiple-Input-Multiple-Output (MIMO) system, including: generating a demodulation reference signal, DM-RS, pattern for an extended cyclic prefix (CP); and estimating and detecting channel performance based on the generated DM-RS signal pattern. The DM-RS pattern supports from rank 1 to rank 8 patterns for 8 layer transmission. A transmitter, a receiver and a system thereof are also provided. The solution of the present invention improves channel estimation accuracy, saves channel estimation implementation and implementation complexity at terminals.
Abstract translation: 防止发明提供了一种在多输入多输出（MIMO）系统中执行信道估计和检测的方法，包括：产生用于扩展循环前缀（CP）的解调参考信号DM-RS，模式; 以及基于所生成的DM-RS信号模式来估计和检测信道性能。 DM-RS模式支持8层传输从1级到8级模式。 还提供发射机，接收机及其系统。 本发明的解决方案提高了信道估计精度，节省了终端的信道估计实现和实现复杂度。
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9.发明授权公开(公告)号：US08817719B2
公开(公告)日：2014-08-26
申请号：US13256595
申请日：2010-06-18
Applicant: Ali Behravan , David Astely , George Jöngren
Inventor： Ali Behravan , David Astely , George Jöngren
CPC classification number: H04W72/1289 , H04L5/0048 , H04L5/005 , H04L5/0092 , H04L5/0094 , H04L25/0224 , H04L27/2611 , H04W72/042 , H04W72/14 , H04W74/006
Abstract: The present invention relates to methods and arrangements for providing a more flexible configuration of SRS transmission. This is achieved by dynamically triggering a mobile terminal to transmit SRS. Thus, embodiments of the invention allow dynamically trigged SRS in any uplink subframe, even without necessarily reserving resources semi-statically on cell level. This is done by signaling to the terminal whether the mobile terminal should leave the predefined uplink symbol empty for sounding reference signals or use it for data transmission. In case a terminal leaves the last symbol empty for sounding reference signals, there are two possibilities, either the UE shall transmit one or several reference signals from one or several antennas, or the terminal shall leave the last symbol blank since another terminal may be using the resource for sounding. Accordingly, in a specific embodiment, there are at least three different messages that can be conveyed to the terminal: use the predefined uplink symbol for data, leave it blank or use it for sounding reference signals.
Abstract translation: 本发明涉及用于提供更灵活的SRS传输配置的方法和装置。 这通过动态触发移动终端来发送SRS来实现。 因此，本发明的实施例允许在任何上行链路子帧中动态触发SRS，甚至不必在小区级别上半静态地保留资源。 这通过向终端发信号完成，移动终端是否应该将预定义的上行链路符号留空以用于探测参考信号或者将其用于数据传输。 在终端将最后一个符号留空以用于探测参考信号的情况下，存在两种可能性：UE应该从一个或多个天线发射一个或多个参考信号，或者终端应该将最后一个符号留空，因为另一个终端可能正在使用 侦听资源。 因此，在具体实施例中，存在可以传送到终端的至少三个不同的消息：使用预定义的上行链路符号用于数据，将其留空或用于探测参考信号。
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公开(公告)号：US08744468B2
公开(公告)日：2014-06-03
申请号：US13640337
申请日：2012-07-30
Applicant: Stefan Parkvall , David Astely , Erik Dahlman , David Hammarwall , Bengt Lindoff , Stefano Sorrentino , Leif Wilhelmsson
Inventor： Stefan Parkvall , David Astely , Erik Dahlman , David Hammarwall , Bengt Lindoff , Stefano Sorrentino , Leif Wilhelmsson
IPC: H04W72/04
CPC classification number: H04W72/1231 , H04W52/143 , H04W52/244 , H04W72/0446 , Y02D70/00
Abstract: In a heterogeneous cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, the data transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node.
Abstract translation: 在异构小区部署中，移动终端可能需要在微微节点正在使用相同的频率或频率集合为移动终端发送用户数据的同时从宏节点接收控制数据传输。 这可能导致有问题的干扰情况。 根据本发明的几个实施例，使用两种一般方法中的至少一种来减轻上述干扰情况。 在第一种方法中，微微节点的传输功率在一些时间间隔内减小，从而将干扰降低到可能从宏节点接收的水平。 在一些可能与第一种方法组合的第二种方法中，从宏节点发送的数据由微微节点单独提供，或与宏节点组合。
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