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1. 发明授权

US09565696B2 Methods and arrangements in a telecommunication system for configuring transmission of sounding reference signals 有权
标题翻译：用于配置发声参考信号传输的电信系统中的方法和装置
公开(公告)号：US09565696B2
公开(公告)日：2017-02-07
申请号：US13370649
申请日：2012-02-10
申请人： Ali Behravan , David Astely , George Jöngren
发明人： Ali Behravan , David Astely , George Jöngren
IPC分类号： H04W72/12 , H04L5/00 , H04L27/26 , H04W72/04 , H04W74/00 , H04L25/02
CPC分类号： H04W72/1289 , H04L5/0048 , H04L5/005 , H04L5/0092 , H04L5/0094 , H04L25/0224 , H04L27/2611 , H04W72/042 , H04W72/14 , H04W74/006
摘要： 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.
摘要翻译：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。

2. 发明授权

US08817719B2 Methods and arrangements for dynamically triggering the transmission of sounding reference signal in a telecommunication system 有权
标题翻译：在电信系统中动态触发探测参考信号的传输的方法和装置
公开(公告)号：US08817719B2
公开(公告)日：2014-08-26
申请号：US13256595
申请日：2010-06-18
申请人： Ali Behravan , David Astely , George Jöngren
发明人： Ali Behravan , David Astely , George Jöngren
IPC分类号： H04W72/04 , H04W72/12 , H04W74/00 , H04L5/00 , H04W56/00 , H04L25/02
CPC分类号： H04W72/1289 , H04L5/0048 , H04L5/005 , H04L5/0092 , H04L5/0094 , H04L25/0224 , H04L27/2611 , H04W72/042 , H04W72/14 , H04W74/006
摘要： 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.
摘要翻译：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。

3. 发明申请

US20120294254A1 SRS Transmission in PUSCH 审中-公开
标题翻译： PUSCH中的SRS传输
公开(公告)号：US20120294254A1
公开(公告)日：2012-11-22
申请号：US13522106
申请日：2010-05-12
申请人： Ali Behravan , David Astely , George Jöngren
发明人： Ali Behravan , David Astely , George Jöngren
IPC分类号： H04W72/04
CPC分类号： H04L5/0048 , H04L5/0023 , H04L5/0094
摘要： The present invention uses user-specific resources, as allocated on the uplink, for conveying one or more antenna-specific sounding reference signals (SRSs). This technique advantageously permits, for example, a user equipment (UE) configured for uplink Multiple-Input-Multiple-Output (MIMO) operation to send antenna-specific SRSs within the granted resources allocated to the UE via one or more scheduled uplink grants. That is, within the granted resources allocated by a given uplink grant, a UE uses at least a portion of those resources for sending antenna-specific SRSs, rather than for sending uplink data (user traffic). Thus, in one or more embodiments, the present invention comprises a method at a UE of transmitting antenna-specific SRSs for two or more uplink transmit antennas. The method comprises transmitting an antenna-specific sounding reference signal for at least one of the uplink transmit antennas within a granted resource allocated to the user equipment for a scheduled uplink data transmission.
摘要翻译：本发明使用在上行链路上分配的用户特定资源来传送一个或多个天线特定的探测参考信号（SRS）。该技术有利地允许例如配置用于上行链路多输入多输出（MIMO）操作的用户设备（UE），以经由一个或多个调度的上行链路授权在分配给UE的授权资源内发送天线专用SRS。也就是说，在由给定的上行链路授权分配的授权资源内，UE使用这些资源的至少一部分来发送天线特定的SRS，而不是用于发送上行链路数据（用户业务）。因此，在一个或多个实施例中，本发明包括在UE处发射用于两个或更多个上行链路发射天线的天线专用SRS的方法。所述方法包括在分配给所述用户设备的授权资源中为所调度的上行链路数据传输发送用于所述上行链路发射天线中的至少一个的天线专用探测参考信号。

4. 发明申请

US20120257584A1 Methods and Arrangements in a Telecommunication System 有权
标题翻译：电信系统的方法与安排
公开(公告)号：US20120257584A1
公开(公告)日：2012-10-11
申请号：US13370649
申请日：2012-02-10
申请人： Ali Behravan , David Astely , George Jöngren
发明人： Ali Behravan , David Astely , George Jöngren
IPC分类号： H04W72/04
CPC分类号： H04W72/1289 , H04L5/0048 , H04L5/005 , H04L5/0092 , H04L5/0094 , H04L25/0224 , H04L27/2611 , H04W72/042 , H04W72/14 , H04W74/006
摘要： 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.
摘要翻译：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。

5. 发明授权

US10097324B2 SRS transmission in PUSCH 有权
公开(公告)号：US10097324B2
公开(公告)日：2018-10-09
申请号：US13522106
申请日：2010-05-12
申请人： Ali Behravan , David Astely , George Jöngren
发明人： Ali Behravan , David Astely , George Jöngren
IPC分类号： H04L5/00
摘要： The present invention uses user-specific resources, as allocated on the uplink, for conveying one or more antenna-specific sounding reference signals (SRSs). This technique advantageously permits, for example, a user equipment (UE) configured for uplink Multiple-Input-Multiple-Output (MIMO) operation to send antenna-specific SRSs within the granted resources allocated to the UE via one or more scheduled uplink grants. That is, within the granted resources allocated by a given uplink grant, a UE uses at least a portion of those resources for sending antenna-specific SRSs, rather than for sending uplink data (user traffic). Thus, in one or more embodiments, the present invention comprises a method at a UE of transmitting antenna-specific SRSs for two or more uplink transmit antennas. The method comprises transmitting an antenna-specific sounding reference signal for at least one of the uplink transmit antennas within a granted resource allocated to the user equipment for a scheduled uplink data transmission.

6. 发明申请

US20120106471A1 Methods and Arrangements for Dynamically Triggering the Transmission of Sounding Reference Signal in a Telecommunication System 有权
标题翻译：用于动态触发电信系统中探测参考信号传输的方法和布置
公开(公告)号：US20120106471A1
公开(公告)日：2012-05-03
申请号：US13256595
申请日：2010-06-18
申请人： Ali Behravan , David Astely , George Jöngren
发明人： Ali Behravan , David Astely , George Jöngren
IPC分类号： H04W72/04
CPC分类号： H04W72/1289 , H04L5/0048 , H04L5/005 , H04L5/0092 , H04L5/0094 , H04L25/0224 , H04L27/2611 , H04W72/042 , H04W72/14 , H04W74/006
摘要： 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.
摘要翻译：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送一个或几个参考信号，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。

7. 发明申请

US20140056190A1 Reducing Interference Caused by an Atmospheric Duct in a Wireless Communication System 审中-公开
标题翻译：减少无线通信系统中大气管道引起的干扰
公开(公告)号：US20140056190A1
公开(公告)日：2014-02-27
申请号：US14110164
申请日：2011-04-08
申请人： Yu Qian , David Astely , Ali Behravan , Jiansong Gan
发明人： Yu Qian , David Astely , Ali Behravan , Jiansong Gan
IPC分类号： H04W24/02
CPC分类号： H04W24/02 , H04B7/2656 , H04L1/205 , H04W28/04 , H04W88/08
摘要： A first base station (14) in a wireless communication system (10) operating according to a synchronised time division scheme detects interference of uplink communication, determines the delay of the interference in relation to an own communication structure (CS1), detects aerial interface identifying data of the source of interference identifying a further base station and sends an indication of the further base station interfering uplink communication to the interference handling node (22). The indication is accompanied by identification data comprising aerial interface identifying data of the further base station and distance data determining the distance (D1) between the first and the further base station. The interference handling node (37) receives the indication with accompanying identification data, investigates the identification data in order to determine the identity of a candidate for the further base station and orders the candidate base station to perform an interference limitation activity.
摘要翻译：根据同步时分方式操作的无线通信系统（10）中的第一基站（14）检测上行链路通信的干扰，确定相对于自身的通信结构（CS1）的干扰的延迟，检测空中接口识别识别另一基站的干扰源的数据，并向干扰处理节点（22）发送进一步的基站干扰上行链路通信的指示。该指示伴随有识别数据，其包括另外的基站的空中接口标识数据和确定第一和另外的基站之间的距离（D1）的距离数据。干扰处理节点（37）用附带的识别数据接收指示，调查识别数据，以便确定另外基站的候选者的身份，并命令候选基站执行干扰限制活动。

8. 发明授权

US08958319B2 Decentralized control of interference reduction in a wireless communication system 有权
标题翻译：无线通信系统中干扰减少的分散控制
公开(公告)号：US08958319B2
公开(公告)日：2015-02-17
申请号：US13257607
申请日：2011-04-29
申请人： Ali Behravan , David Astely , Yu Qian
发明人： Ali Behravan , David Astely , Yu Qian
IPC分类号： G01R31/08 , H04B7/26
CPC分类号： H04B7/2656
摘要： A first base station (14) in a wireless communication system (10) operating according to a synchronised time division duplex scheme comprises an antenna (24), a radio communication unit (26) and an interference handling module (28). The interference handling module comprises an interference investigating unit (30) and a transmission control unit (34) configured to provide a sounding frame in which a variable downlink time interval has a pre-defined size long enough to provoke interference, order the interference investigating unit to obtain and analyse a link quality data parameter in a non-downlink time interval and determine whether interference from another base station is present. The transmission control unit is further configured to order the radio communication unit (26) to reduce the size of following variable downlink time intervals according to an interference reduction scheme for obtaining time intervals with a guaranteed reduced size if interference from another base station is present.
摘要翻译：根据同步的时分双工方式操作的无线通信系统（10）中的第一基站（14）包括天线（24），无线电通信单元（26）和干扰处理模块（28）。干扰处理模块包括干扰调查单元（30）和传输控制单元（34），其被配置为提供其中可变下行链路时间间隔具有足够长的预定义尺寸以引起干扰的探测帧，命令干扰调查单元在非下行链路时间间隔中获取和分析链路质量数据参数，并确定是否存在来自另一个基站的干扰。传输控制单元还被配置为：如果存在来自另一基站的干扰，则根据用于获得具有保证减小的大小的时间间隔的干扰减少方案，命令无线电通信单元（26）减小后续可变下行链路时间间隔的大小。

9. 发明申请

US20120314592A1 Decentralized Control of Interference Reduction in a Wireless Communication System 有权
标题翻译：无线通信系统中干扰减少的分散控制
公开(公告)号：US20120314592A1
公开(公告)日：2012-12-13
申请号：US13257607
申请日：2011-04-29
申请人： Ali Behravan , David Astely , Yu Qian
发明人： Ali Behravan , David Astely , Yu Qian
IPC分类号： H04W24/02
CPC分类号： H04B7/2656
摘要： A first base station (14) in a wireless communication system (10) operating according to a synchronised time division duplex scheme comprises an antenna (24), a radio communication unit (26) and an interference handling module (28). The interference handling module comprises an interference investigating unit (30) and a transmission control unit (34) configured to provide a sounding frame in which a variable downlink time interval has a pre-defined size long enough to provoke interference, order the interference investigating unit to obtain and analyse a link quality data parameter in a non-downlink time interval and determine whether interference from another base station is present. The transmission control unit is further configured to order the radio communication unit (26) to reduce the size of following variable downlink time intervals according to an interference reduction scheme for obtaining time intervals with a guaranteed reduced size if interference from another base station is present.
摘要翻译：根据同步的时分双工方式操作的无线通信系统（10）中的第一基站（14）包括天线（24），无线电通信单元（26）和干扰处理模块（28）。干扰处理模块包括干扰调查单元（30）和传输控制单元（34），其被配置为提供其中可变下行链路时间间隔具有足够长的预定义尺寸以引起干扰的探测帧，命令干扰调查单元在非下行链路时间间隔中获取和分析链路质量数据参数，并确定是否存在来自另一个基站的干扰。传输控制单元还被配置为：如果存在来自另一基站的干扰，则根据用于获得具有保证减小的大小的时间间隔的干扰减少方案，命令无线电通信单元（26）减小跟随可变下行链路时间间隔的大小。

10. 发明申请

US20130242949A1 Antenna Port Mapping for Demodulation Reference Signals 有权
标题翻译：天线端口映射解调参考信号
公开(公告)号：US20130242949A1
公开(公告)日：2013-09-19
申请号：US13874768
申请日：2013-05-01
申请人： Yang Hu , David Astely , David Hammarwall , George Jöngren , Xinghua Song , Jianfeng Wang
发明人： Yang Hu , David Astely , David Hammarwall , George Jöngren , Xinghua Song , Jianfeng Wang
IPC分类号： H04W72/06
CPC分类号： H04W28/0263 , H04J11/00 , H04L5/0026 , H04L5/0048 , H04W72/042 , H04W72/0453 , H04W72/06
摘要： The present invention provides a unified, rank independent mapping between antenna ports and group/code pairs. Each antenna port is uniquely associated with one code division multiplexing (CDM) group and one orthogonal cover code (OCC). The mapping between antenna ports and group/code pairs is chosen such that, for a given antenna port, the CDM group and OCC will be the same for every transmission rank.
摘要翻译：本发明提供天线端口和组/码对之间的统一的等级独立映射。每个天线端口与一个码分多路复用（CDM）组和一个正交覆盖码（OCC）唯一相关。选择天线端口和组/码对之间的映射，使得对于给定的天线端口，CDM组和OCC对于每个传输等级将是相同的。

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