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1. 发明申请

WO2011102768A1 METHODS AND ARRANGEMENTS FOR DYNAMICALLY TRIGGERING THE TRANSMISSION OF SOUNDING REFERENCE SIGNAL IN A TELECOMMUNICATION SYSTEM 审中-公开
标题翻译：用于动态地触发电信系统中的声音参考信号传输的方法和装置
公开(公告)号：WO2011102768A1
公开(公告)日：2011-08-25
申请号：PCT/SE2010/050685
申请日：2010-06-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BEHRAVAN, Ali , ASTELY, David , JÖNGREN, George
发明人： BEHRAVAN, Ali , ASTELY, David , JÖNGREN, George
IPC分类号： H04L5/00 , H04L27/26
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应从一个或多个天线发送一个或几个参考信号，或者终端应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。

2. 发明申请

WO2011090413A1 SRS TRANSMISSION IN PUSCH 审中-公开
标题翻译： SRS中的SRS传输
公开(公告)号：WO2011090413A1
公开(公告)日：2011-07-28
申请号：PCT/SE2010/050523
申请日：2010-05-12
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BEHRAVAN, Ali , ASTELY, David , JÖNGREN, George
发明人： BEHRAVAN, Ali , ASTELY, David , JÖNGREN, George
IPC分类号： H04L5/00
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。

3. 发明申请

WO2012148336A1 DECENTRALISED CONTROL OF INTERFERENCE REDUCTION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统干扰减少的分散控制
公开(公告)号：WO2012148336A1
公开(公告)日：2012-11-01
申请号：PCT/SE2011/050541
申请日：2011-04-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BEHRAVAN, Ali , ASTELY, David , QIAN, Yu
发明人： BEHRAVAN, Ali , ASTELY, David , QIAN, Yu
IPC分类号： 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）减小跟随可变下行链路时间间隔的大小。

4. 发明申请

WO2012135978A1 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干扰引起的干扰
公开(公告)号：WO2012135978A1
公开(公告)日：2012-10-11
申请号：PCT/CN2011/000607
申请日：2011-04-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , QIAN, Yu , ASTELY, David , BEHRAVAN, Ali , GAN, Jiansong
发明人： QIAN, Yu , ASTELY, David , BEHRAVAN, Ali , GAN, Jiansong
IPC分类号： H04W88/08
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，确定与自身通信结构（CS1）相关的干扰延迟，检测空中接口识别识别另一个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。

5. 发明申请

WO2010002319A3 METHODS AND ARRANGEMENTS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2010002319A3
公开(公告)日：2010-01-07
申请号：PCT/SE2009/050381
申请日：2009-04-14
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , JÖNGREN, George , ASTELY, David
发明人： JÖNGREN, George , ASTELY, David
IPC分类号： H04L1/18 , H04L1/16
摘要： The present invention relates to methods and arrangements in a wireless communication system that enable the use of multi-codeword transmission and ACK/NACK compression with low performance loss. It also enables the use of advanced receivers of reasonable complexity. This is achieved by a solution based on the even distribution of the symbols of separately coded blocks of information bits over the available physical resources before transmission. Each physical resource will thus carry a mixture of symbols from all blocks of information bits, which results in a more similar channel quality for the blocks of information bits. A compressed ACK/NACK message corresponding to the blocks of information bits will thus be more accurate and the performance loss due to the ACK/NACK compression can be reduced.

6. 发明申请

WO2009098578A2 METHOD AND ARRANGEMENT IN A TELECOMMUNICATIONS SYSTEM 审中-公开
标题翻译：电信系统中的方法和安排
公开(公告)号：WO2009098578A2
公开(公告)日：2009-08-13
申请号：PCT/IB2009/000205
申请日：2009-02-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HAMMARWALL, David , JÖNGREN, George , ASTELY, David , LUNDEVALL, Per, Magnus
发明人： HAMMARWALL, David , JÖNGREN, George , ASTELY, David , LUNDEVALL, Per, Magnus
IPC分类号： H04B17/00
CPC分类号： H04B17/345
摘要： A receiving unit or a transmitting unit of a wireless network for facilitating noise and interference measurements on an air interface. The receiving unit includes a network interface which obtains information relating to a time-varying layout of a silent resource element (RE) grid. The receiving unit includes an electronic memory having code in communication with the network interface which stores the information. The receiving unit includes a processing unit in communication with the electronic memory that takes a presence of a silent RE grid into account in the reception of a control or a data channel. In the transmitting unit, the processing unit takes the presence of a silent RE grid into account in the transmission of a control or a data channel. A method in the receiving unit or a transmitting unit of a wireless network, for facilitating noise and interference measurements on an air interface. The method includes the steps of obtaining information relating to a time-varying layout of a silent resource element (RE) grid. There is the step of taking a presence of a silent RE grid into account in the reception of a control or a data channel.
摘要翻译：无线网络的接收单元或发射单元，用于促进空中接口上的噪声和干扰测量。接收单元包括网络接口，该网络接口获得与无声资源元素（RE）网格的时变布局有关的信息。接收单元包括具有与存储信息的网络接口通信的代码的电子存储器。接收单元包括与电子存储器通信的处理单元，其在接收控制或数据信道时考虑无声RE网格的存在。在发送单元中，处理单元在控制或数据信道的传输中考虑无声RE网格的存在。在无线网络的接收单元或发射单元中的方法，用于促进空中接口上的噪声和干扰测量。该方法包括获得与无声资源元素（RE）网格的时变布局有关的信息的步骤。在接收控制或数据通道时考虑无声RE网格的存在。

7. 发明申请

WO2011134107A1 CONTROL SIGNALING DESIGN FOR LTE-A DOWNLINK TRANSMISSION MODE 审中-公开
标题翻译： LTE-A下行链路传输模式的控制信令设计
公开(公告)号：WO2011134107A1
公开(公告)日：2011-11-03
申请号：PCT/CN2010/000595
申请日：2010-04-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , JÖNGREN, George , SONG, Xinghua
发明人： HU, Yang , ASTELY, David , JÖNGREN, George , SONG, Xinghua
IPC分类号： H04W28/18
CPC分类号： H04L5/0091 , H04B7/0613 , H04B7/0665 , H04B7/0862 , H04L5/0023 , H04L5/0053
摘要： The invention relates to a new DCI format that is proposed in Rel-10 to support Rel-10 MIMO transmission. Essentially, only two extra bits is introduced in DCI format 2B to signal rank up to eight layers.
摘要翻译：本发明涉及在Rel-10中提出的支持Rel-10 MIMO传输的新的DCI格式。基本上，在DCI格式2B中仅引入两个额外的位来信号排列达8层。

8. 发明申请

WO2011085509A1 LAYER-TO DM RS PORT MAPPING FOR LTE-ADVANCED 审中-公开
标题翻译：用于LTE-ADVANCED的层到DM RS端口映射
公开(公告)号：WO2011085509A1
公开(公告)日：2011-07-21
申请号：PCT/CN2010/000043
申请日：2010-01-12
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
IPC分类号： H04B7/26
CPC分类号： H04B7/0452 , H04B7/0689 , H04L5/0023 , H04L5/0026 , H04L5/0048
摘要： The invention discloses a method for mapping pattern between transmission layers to demodulation reference signal (DM-RS) ports for both SU-MIMO and MU-MIMO in case of multi-layer transmission in LTE ReI- 10.
摘要翻译：本发明公开了一种用于在LTE ReI-10中进行多层传输的情况下将传输层之间的模式映射到用于SU-MIMO和MU-MIMO的解调参考信号（DM-RS）端口的方法。

9. 发明申请

WO2010050874A1 METHOD FOR TRANSMISSION OF REFERENCE SIGNALS AND DETERMINATION OF PRECODING MATRICES FOR MULTI-ANTENNA TRANSMISSION 审中-公开
标题翻译：传输参考信号的方法和确定多天线传输的预编码矩阵
公开(公告)号：WO2010050874A1
公开(公告)日：2010-05-06
申请号：PCT/SE2009/050542
申请日：2009-05-14
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , RAHMAN, Muhammad Imadur , JÖNGREN, George , ASTELY, David
发明人： RAHMAN, Muhammad Imadur , JÖNGREN, George , ASTELY, David
IPC分类号： H04B7/06 , H04B7/04
CPC分类号： H04B7/0639 , H04B7/0417 , H04B7/0469 , H04B7/0617 , H04B7/0691 , H04L5/0023 , H04L5/005 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques are disclosed for determining transmitter antenna weights at a base station (12) having more available transmit antennas (150) than the available number of reference signals. An exemplary method includes transmitting (530) a plurality of reference signals and receiving (540) channel feedback data derived by a mobile terminal (14) from the reference signals. The reference signals are each assigned to a corresponding one of two or more antenna groupings, wherein at least a first one of the antenna groupings comprises two or more transmit antennas (150), and transmitted using at least one transmit antenna (150) from the corresponding antenna grouping. The method further includes determining (550) a first beam-forming vector for the first one of the antenna grouping and mapping (570) the one or more data streams to the transmit antennas (150) according to a final precoding matrix that depends on the channel feedback data and the first beam-forming vector, to obtain a weighted transmit signal for each of the antennas (150).
摘要翻译：公开了用于在具有比可用数量的参考信号更多的可用发射天线（150）的基站（12）处确定发射机天线权重的技术。一种示例性方法包括：发射（530）多个参考信号，并且从参考信号接收（540）由移动终端（14）导出的信道反馈数据。每个参考信号被分配给两个或多个天线分组中的相应一个，其中天线分组中的至少第一天线分组包括两个或多个发射天线（150），并且使用至少一个发射天线（150）从相应的天线分组。该方法还包括确定（550）天线组合中第一个的第一波束形成向量，并根据最终的预编码矩阵将所述一个或多个数据流映射（570）到发射天线（150）信道反馈数据和第一波束成形矢量，以获得每个天线（150）的加权发射信号。

10. 发明申请

WO2011136710A1 TRANSMITTER, RECEIVER AND METHODS FOR DOWNLINK CONTROL SIGNALLING 审中-公开
标题翻译：发射机，接收机和下行链路控制信令的方法
公开(公告)号：WO2011136710A1
公开(公告)日：2011-11-03
申请号：PCT/SE2010/051011
申请日：2010-09-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , SONG, Xinghua , ASTELY, David , JÖNGREN, George
发明人： HU, Yang , SONG, Xinghua , ASTELY, David , JÖNGREN, George
IPC分类号： H04L25/03 , H04L5/00
CPC分类号： H04L5/0091 , H04B7/0613 , H04B7/0665 , H04B7/0862 , H04L5/0023 , H04L5/0053
摘要： Downlink control information (DCI) extensions to support 3GPP Rel-10 functionalities comprise minimal extensions of DCI format 2B. In some embodiments, only two extra bits (20) are introduced to signal rank up to eight, by reusing the Scrambling Identity bit (16) while at the same time supporting different MU-MIMO dimensioning for the important cases of rank-1 and rank-2. This new DCI format can potentially support not only single cell downlink transmission but also some other Rel-10 functionalities, e.g. CoMP or relaying/HetNet.
摘要翻译：用于支持3GPP Rel-10功能的下行链路控制信息（DCI）扩展包括DCI格式2B的最小扩展。在一些实施例中，通过重新使用加扰标识位（16），同时支持秩-1和重要情况的不同的MU-MIMO尺寸标注，仅引入两个额外的比特（20）来信号等级达到八个 -2。这种新的DCI格式不仅可以支持单小区下行链路传输，还可以支持一些其他Rel-10功能，例如， CoMP或中继/ HetNet。

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