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11. 发明申请

WO2009096846A1 CONFIGURATION MEASUREMENT TIME SLOTS FOR MOBILE TERMINALS IN A TDD SYSTEM 审中-公开
标题翻译： TDD系统中移动终端的配置测量时隙
公开(公告)号：WO2009096846A1
公开(公告)日：2009-08-06
申请号：PCT/SE2008/051412
申请日：2008-12-05
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , KAZMI, Muhammad , ASTELY, David
发明人： KAZMI, Muhammad , ASTELY, David
IPC分类号： H04W24/10 , H04W48/08
CPC分类号： H04W24/10 , H04W48/08
摘要： 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.
摘要翻译：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，在无线电基站中，移动终端通过无线电接口与至少一个基站进行通信。移动终端在被配置用于下行链路传输测量的时隙期间对从对应的相邻小区接收的下行链路信号执行移动性相关的测量。配置节点接收输入信息，并且基于接收到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，使得基站可以向移动终端发信号通知测量时隙配置信息。

12. 发明申请

WO2009075631A2 METHODS AND DEVICES FOR COMMUNICATING ON A RADIO CHANNEL 审中-公开
标题翻译：用于通信无线电信道的方法和设备
公开(公告)号：WO2009075631A2
公开(公告)日：2009-06-18
申请号：PCT/SE2008/050934
申请日：2008-08-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BALDEMAIR, Robert , ASTELY, David
发明人： BALDEMAIR, Robert , ASTELY, David
IPC分类号： H04W74/08
CPC分类号： H04W74/0833 , H04W74/004
摘要： The invention relates to devices and methods for transmitting data on a radio channel comprising to jointly encode (S4) a preamble format with a first random access configuration, forming an extended random access configuration. The extended random access configuration is then transmitted (S6) on the radio channel.
摘要翻译：本发明涉及用于在无线电信道上传输数据的装置和方法，包括：通过第一随机接入配置联合编码（S4）前导码格式，形成扩展的随机接入配置。然后在无线电信道上发送（S6）扩展随机接入配置。

13. 发明申请

WO2009075630A1 IMPROVED SCHEDULING IN A CELLULAR SYSTEM 审中-公开
标题翻译：改进细胞系统调度
公开(公告)号：WO2009075630A1
公开(公告)日：2009-06-18
申请号：PCT/SE2008/050524
申请日：2008-05-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , PARKVALL, Stefan , ASTELY, David
发明人： PARKVALL, Stefan , ASTELY, David
IPC分类号： H04W72/14 , H04W72/12
CPC分类号： H04L5/0094 , H04L1/1607 , H04W72/0446 , H04W72/1289
摘要： In a cellular system (100), transmissions are made (410) in subframes (310) which comprise subelements. The method is used for scheduling (415) first and second channels in a subframe, and comprises: • dividing (420) the transmission resources for the first channel into a first set of resource groups, • assigning (425) the resource groups of the first set to subelements in the subframe (310) in a predetermined fashion, • assigning (430) a symbol value to all subelements (210) in the subframe (310) which have not been assigned a resource groups of the first set, • dividing (435) the transmission resources for the second channel into a second set of resource groups, • assigning (440) the resource groups of the second set to subelements in the subframe by means of said symbol values.
摘要翻译：在蜂窝系统（100）中，在包括子元件的子帧（310）中进行（410）传输。该方法用于在子帧中调度（415）第一和第二信道，并且包括：将第一信道的传输资源划分（420）到第一组资源组中，分配（425）第一组的资源组以预定的方式对子帧（310）中的子元素分配（430）符号值到尚未被分配了第一组的资源组的子帧（310）中的所有子元素（210）（435）用于所述第二信道的传输资源转换成第二组资源组，通过所述符号值将所述第二集合的资源组分配（440）到所述子帧中的子元素。

14. 发明申请

WO2009041881A2 METHOD AND ARRANGEMENT IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：通信系统中的方法和布置
公开(公告)号：WO2009041881A2
公开(公告)日：2009-04-02
申请号：PCT/SE2008/050684
申请日：2008-06-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WAN, Lei , ASTELY, David
发明人： WAN, Lei , ASTELY, David
IPC分类号： H04B7/26 , H04L25/02
CPC分类号： H04L5/14 , H04L5/0048
摘要： The present invention concerns a method and an arrangement in a first node in a wireless communication system. The first node is using a frame structure of a Time Division Duplex mode (TDD mode) physical layer protocol for transmitting a signal from the first node to a second node in a wireless communication network. The method is characterised by the step of Transmitting a Sounding Reference Signal (SRS) in an Uplink Pilot Timeslot comprised within the TDD mode frame structure. Further, the present invention concerns a method and an arrangement in a second node in a wireless communication system.
摘要翻译：本发明涉及无线通信系统中的第一节点中的方法和装置。第一节点使用时分双工模式（TDD模式）物理层协议的帧结构，用于在无线通信网络中将信号从第一节点发送到第二节点。该方法的特征在于在TDD模式帧结构中包括的上行链路导频时隙中发送探测参考信号（SRS）的步骤。此外，本发明涉及无线通信系统中的第二节点中的方法和装置。

15. 发明申请

WO2012108804A1 REFERENCE SIGNAL RESOURCE ALLOCATION IN A MULTI-CARRIER SYSTEM 审中-公开
标题翻译：多载波系统中的参考信号资源分配
公开(公告)号：WO2012108804A1
公开(公告)日：2012-08-16
申请号：PCT/SE2011/051131
申请日：2011-09-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SORRENTINO, Stefano , BALDEMAIR, Robert , ASTELY, David
发明人： SORRENTINO, Stefano , BALDEMAIR, Robert , ASTELY, David
IPC分类号： H04L5/00
CPC分类号： H04L5/0048 , H04L5/0094
摘要： Downlink control information, DCI, messages used for signaling downlink resource grants are employed for triggering sounding reference signal transmission in the uplink. An index of the uplink component carrier that should be used for the transmission is derived from SIB-2 linking between the downlink component carrier targeted by the downlink DCI message and one of the uplink component carriers configured for the mobile station, when the linking is available. In some cases the downlink component carrier targeted by the downlink DCI message is identified by a carrier identification field in the downlink DCI. Variants of the disclosed techniques involve a default uplink component carrier, which is used in the event that the SIB-2 based allocation is not possible or desired. The default uplink component carrier can be statically defined or semi- statically signaled by Radio Resource Control, RRC, signaling.
摘要翻译：下行链路控制信息，DCI，用于信令下行链路资源许可的消息用于触发上行链路中的探测参考信号传输。应该用于传输的上行链路分量载波的索引是从链路可用时从下行链路DCI消息所针对的下行链路分量载波与为移动台配置的上行链路分量载波之一之间的SIB-2链接导出的。在某些情况下，由下行链路DCI消息所针对的下行分量载波由下行链路DCI中的载波标识字段来识别。所公开技术的变型涉及默认上行链路分量载波，其在基于SIB-2的分配不可能或不期望的情况下使用。默认的上行分量载波可以由无线电资源控制（RRC）信令静态地定义或半静态地发出信号。

16. 发明申请

WO2012079202A1 BEAMFORMING METHOD, APPARATUS FOR POLARIZED ANTENNA ARRAY AND RADIO COMMUNICATION DEVICE AND SYSTEM THEREOF 审中-公开
标题翻译：波束形成方法，用于极化天线阵列和无线电通信装置的装置及其系统
公开(公告)号：WO2012079202A1
公开(公告)日：2012-06-21
申请号：PCT/CN2010/002075
申请日：2010-12-17
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , HU, Yang , ASTELY, David , GUO, Zhiheng , RAHMAN, Muhammad Imadur , WANG, Hai , ZHANG, Ruiqi
发明人： HU, Yang , ASTELY, David , GUO, Zhiheng , RAHMAN, Muhammad Imadur , WANG, Hai , ZHANG, Ruiqi
IPC分类号： H04B7/10
CPC分类号： H01Q3/40 , H04B7/0408 , H04B7/0413 , H04B7/0469 , H04B7/0617 , H04B7/0671 , H04B7/0686 , H04B7/0691 , H04B7/10
摘要： The invention discloses a beamforming method for polarized antenna array consisting of a plurality of antenna elements, applied to single layer beamforming or dual layer beamforming, which includes the steps: determining (201) first beamforming weights for phase compensation among the antenna elements within each polarization direction; determining (202) second beamforming weights for phase compensation between equivalent channels of two polarization directions; and calculating (203) hybrid beamforming weights as product of the first beamforming weights and the second beamforming weights. A beamforming apparatus for polarized antenna array is also provided in the invention as well as a radio communication device and a system thereof. With the invention, the single-layer and dual-layer beamforming weights are determined for the cross-polarized antenna array without requiring full channel knowledge or the aid of PMI. Computation complexity is lowered and full power amplifier utilization can be achieved.
摘要翻译：本发明公开了一种用于由应用于单层波束成形或双层波束形成的多个天线元件组成的极化天线阵列的波束成形方法，其包括以下步骤：确定（201）每个极化内的天线元件之间的相位补偿的第一波束形成权重方向; 确定（202）第二波束形成权重用于两个极化方向的等效信道之间的相位补偿; 以及计算（203）混合波束形成权重作为所述第一波束形成权重和所述第二波束成形权重的乘积。本发明还提供了一种用于极化天线阵列的波束成形装置以及无线电通信装置及其系统。利用本发明，对于交叉极化天线阵列确定单层和双层波束成形权重，而不需要全渠道知识或PMI的帮助。计算复杂度降低，可实现全功率放大器利用。

17. 发明申请

WO2011139189A1 METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的方法和布置
公开(公告)号：WO2011139189A1
公开(公告)日：2011-11-10
申请号：PCT/SE2010/050487
申请日：2010-05-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , RAHMAN, Muhammad Imadur , SUN, Fan , ASTELY, David
发明人： RAHMAN, Muhammad Imadur , SUN, Fan , ASTELY, David
IPC分类号： H04B7/04 , H04B7/06
CPC分类号： H04B7/0417 , H04B7/0465 , H04B7/0617 , H04B7/0626 , H04B7/0639 , H04B7/0665
摘要： Method and arrangement in a base station for sending data to a user equipment. The base station comprises an instance of a codebook, corresponding to another instance of the codebook comprised in the user equipment. The method comprises obtaining channel state information from a signal received from the user equipment, estimating a channel to be used for transmitting data to the user equipment, calculating a precoder, based on the obtained channel state information. Further is comprised the steps of selecting a precoding index from the codebook based on the calculated precoder, or selecting a precoding index received from the user equipment, precoding data to be transmitted to the user equipment using the calculated precoder and transmitting the precoded data, a non-user dedicated reference signal and the precoding index on the estimated channel to the user equipment. Further, corresponding method and arrangement in a user equipment are described.
摘要翻译：用于向用户设备发送数据的基站中的方法和装置。基站包括对应于用户设备中包含的码本的另一实例的码本的实例。该方法包括从用户设备接收到的信号中获取信道状态信息，根据所获得的信道状态信息估计用于向用户设备发送数据的信道，计算预编码器。还包括以下步骤：基于所计算的预编码器从码本中选择预编码索引，或者选择从用户设备接收的预编码索引，使用所计算的预编码器对要发送给用户设备的数据进行预编码，并发送预编码数据; 非用户专用参考信号和估计信道上的用户设备的预编码索引。此外，描述了用户设备中的相应方法和布置。

18. 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。

19. 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。

20. 发明申请

WO2010107365A2 METHOD AND ARRANGEMENT IN A CELLULAR COMMUNICATION SYSTEM 审中-公开
标题翻译：细胞通信系统中的方法和布置
公开(公告)号：WO2010107365A2
公开(公告)日：2010-09-23
申请号：PCT/SE2010/050215
申请日：2010-02-24
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BALDEMAIR, Robert , ASTELY, David
发明人： BALDEMAIR, Robert , ASTELY, David
IPC分类号： H04B7/04 , H04B7/06
CPC分类号： H04B7/0439 , H04B7/0426 , H04B7/0613
摘要： The basic idea of the present invention is to not only design a frequency-selective precoder with respect to the channel properties but also to ensure that the time- domain spread is limited. Hence the energy of the time-domain impulse response of the frequency-selective precoder is concentrated. According to a first embodiment, the time-domain spread is limited by designing a precoder such that it allows smooth transitions in the frequency domain between the values of the precoder when the precoder provides a staircase function. The smooth transitions can either be achieved by lowpass filtering the frequency-domain representation, the staircase function, of the precoder or by designing the precoder such that the sharp jumps are replaced by slopes. According to a second embodiment, the time-domain spread is controlled. The control may be achieved by employing a time-domain parameterization to precisely control the introduced additional time-domain spread.
摘要翻译：本发明的基本思想不仅是针对信道特性设计频率选择性预编码器，而且还确保时域扩展受到限制。因此，频率选择性预编码器的时域脉冲响应的能量集中。根据第一实施例，通过设计预编码器来限制时域扩展，使得当预编码器提供阶梯功能时，允许在预编码器的值之间的频域中的平滑过渡。平滑过渡可以通过对预编码器的频域表示，阶梯函数进行低通滤波，或者通过设计预编码器来实现，使得尖锐的跳跃被斜率替代。根据第二实施例，控制时域扩展。可以通过采用时域参数化来精确地控制引入的附加时域扩展来实现该控制。

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