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    • 81. 发明授权
    • Methods and arrangements for channel estimation
    • 信道估计的方法和布置
    • US08964632B2
    • 2015-02-24
    • US13422298
    • 2012-03-16
    • Stefano SorrentinoGeorge Jöngren
    • Stefano SorrentinoGeorge Jöngren
    • H04W56/00
    • H04L25/0204H04L5/0048H04L27/2601H04L43/028H04W16/32H04W24/08H04W56/001H04W56/0095H04W88/02
    • Some embodiments provide a method for channel estimation in a wireless device. According to the method, the wireless device obtains an indication that a set of antenna ports, or antenna port types, share at least one channel property. The wireless device then estimates one or more of the shared channel properties based at least on a first reference signal received from a first antenna port included in the set, or having a type corresponding to one of the types in the set. Furthermore, the wireless device performs channel estimation based on a second reference signal received from a second antenna port included in the set, or having a type corresponding to one of the types in the set, wherein the channel estimation is performed using at least the estimated channel properties.
    • 一些实施例提供了一种用于无线设备中的信道估计的方法。 根据该方法,无线设备获得一组天线端口或天线端口类型共享至少一个信道属性的指示。 然后,无线设备至少基于从组中包括的第一天线端口接收的第一参考信号估计一个或多个共享信道属性,或者具有与集合中的一个类型相对应的类型。 此外,无线设备基于从组中包括的第二天线端口接收到的第二参考信号或者具有与集合中的类型之一相对应的类型来执行信道估计,其中使用至少估计的信道估计来执行信道估计 频道属性。
    • 82. 发明授权
    • Mapping user data onto a time-frequency resource grid in a coordinated multi-point wireless communication sytem
    • 将用户数据映射到协调的多点无线通信系统中的时间 - 频率资源网格上
    • US08837396B2
    • 2014-09-16
    • US13148169
    • 2009-09-20
    • George JöngrenErik Dahlman
    • George JöngrenErik Dahlman
    • H04W72/04H04L5/00
    • H04L5/005H04B7/024H04L5/0005H04L5/0007H04L5/0032H04L5/0035H04L5/0053H04L5/0062H04L5/0096H04W72/0406H04W72/042
    • Methods and apparatus are disclosed for receiving user data in a wireless communication system (300) that employs coordinated multi-point transmission of the user data from a first cell serving a wireless terminal (635) and a second cell site neighboring the first cell site. In an exemplary system, the first cell site maps control signals (110, 230, 240) and user data to a time-frequency resources (220) according to a first mapping pattern, while the second cell site maps control data (110, 230, 240) and traffic data to the time-frequency resources (220) according to a second mapping pattern. An exemplary method comprises extracting (520) user data, according to the first mapping pattern, from time-frequency resources (220) of a first transmission for the wireless terminal (635) transmitted from the first cell site; detecting (540) a control element transmitted by one of the first and second cell sites, the control element indicating that user data associated with the control element is mapped to the time-frequency resources (220) according to the second mapping pattern; and, responsive to said detecting, extracting (550) user data according to the second mapping pattern from time-frequency resources (220) of a second transmission for the wireless terminal (635) transmitted from the second cell site.
    • 公开了用于在无线通信系统(300)中接收用户数据的方法和装置,该无线通信系统采用来自服务于无线终端(635)的第一小区和与第一小区站点相邻的第二小区站点的用户数据的协调多点传输。 在示例性系统中,第一小区站点将控制信号(110,230,240)和用户数据根据第一映射模式映射到时间频率资源(220),而第二小区站点将控制数据(110,230) ,240)并且根据第二映射模式将业务数据传送到时间 - 频率资源(220)。 一种示例性方法包括根据第一映射模式从第一小区站点发送的无线终端(635)的第一传输的时间 - 频率资源(220)提取(520)用户数据; 检测(540)由所述第一和第二小区站点之一发送的控制单元,所述控制单元指示与所述控制单元相关联的用户数据根据所述第二映射模式映射到所述时间频率资源(220) 并且响应于所述检测,从所述第二小区站点发送的所述无线终端(635)的第二传输的时间频率资源(220)中根据所述第二映射模式提取(550)用户数据。
    • 83. 发明授权
    • Methods and arrangements for dynamically triggering the transmission of sounding reference signal in a telecommunication system
    • 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
    • US08817719B2
    • 2014-08-26
    • US13256595
    • 2010-06-18
    • Ali BehravanDavid AstelyGeorge Jöngren
    • Ali BehravanDavid AstelyGeorge Jöngren
    • H04W72/04H04W72/12H04W74/00H04L5/00H04W56/00H04L25/02
    • H04W72/1289H04L5/0048H04L5/005H04L5/0092H04L5/0094H04L25/0224H04L27/2611H04W72/042H04W72/14H04W74/006
    • 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.
    • 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。
    • 85. 发明授权
    • System and method for allocating transmission resources
    • 用于分配传输资源的系统和方法
    • US08705574B2
    • 2014-04-22
    • US13104373
    • 2011-05-10
    • David HammarwallGeorge Jöngren
    • David HammarwallGeorge Jöngren
    • H04J4/00
    • H04W72/0406H04B7/04H04B7/0413H04B7/0456H04B7/0486H04B7/0669H04L1/003H04L1/0071H04L1/0079H04L1/1664H04L1/1671H04L5/00H04L5/0053H04L5/0057H04L5/0091H04L25/03929H04W72/04H04W72/0413
    • A method for wirelessly transmitting user data and at least a first type of control information using a plurality of transmission layers including encoding bits of a first type of control information to form one or more control codewords and encoding bits of user data to form one or more user data codewords. The method also includes generating a plurality of vector symbols based on the control codewords and the user data codewords. Each vector symbol includes a plurality of modulation symbols that are each associated with a transmission layer over which the associated modulation symbol will be transmitted. Generating the plurality of vector symbols includes interleaving bits of the one or more control codewords and bits of the one or more user data codewords so that the first type of control information is carried in modulation symbols associated with the same transmission layers in all the vector symbols transmitted during the subframe that carry the first type of control information. The method also includes transmitting the plurality of vector symbols to a receiver over a plurality of transmission layers.
    • 一种用于使用包括第一类型的控制信息的编码比特的多个传输层来无线发送用户数据和至少第一类型的控制信息以形成一个或多个控制码字并且对用户数据的比特进行编码以形成一个或多个 用户数据码字。 该方法还包括基于控制码字和用户数据码字生成多个矢量符号。 每个矢量符号包括多个调制符号,每个调制符号与传输层相关联,在该传输层上将传送相关联的调制符号。 产生多个向量符号包括交织一个或多个控制码字的比特和一个或多个用户数据码字的比特,使得第一类型的控制信息在与所有向量符号中的相同传输层相关联的调制符号中携带 在携带第一类型的控制信息的子帧期间发送。 该方法还包括通过多个传输层将多个矢量符号发射到接收机。
    • 86. 发明申请
    • Methods and Arrangements for Reference Signal Measurements
    • 参考信号测量的方法和布置
    • US20140105042A1
    • 2014-04-17
    • US13822504
    • 2012-11-13
    • Tao CuiGeorge JöngrenStefano Sorrentino
    • Tao CuiGeorge JöngrenStefano Sorrentino
    • H04W24/00
    • H04W24/00H04B17/26H04B17/318
    • Embodiments are disclosed which improve the accuracy of measurement quantities obtained based on filtered measurements, by enabling filter memory reset events triggered by specific configuration and/or reconfiguration commands. According to some embodiments, a method for obtaining a measurement quantity is provided. The measurement quantity is based on a filtered reference signal (RS) measurement value. The method is executed in a wireless device, e.g. a user equipment (UE). According to the method, the wireless device receives (1410) a filter reset indication. In response to the indication, the wireless device resets (1420) one or more RS measurement filters. The wireless device then obtains (1430) a new filtered RS measurement value, and obtains (1440) the measurement quantity based on the new filtered RS measurement value.
    • 公开了通过启用由特定配置和/或重新配置命令触发的过滤器存储器复位事件来提高基于滤波测量获得的测量量的精度的实施例。 根据一些实施例,提供了一种用于获得测量量的方法。 测量量基于滤波的参考信号(RS)测量值。 该方法在无线设备中执行,例如, 用户设备(UE)。 根据该方法,无线设备接收(1410)滤波器复位指示。 响应于该指示,无线设备重置(1420)一个或多个RS测量滤波器。 然后,无线设备获得(1430)新的经滤波的RS测量值,并且基于新的经滤波的RS测量值获得(1440)测量量。
    • 87. 发明授权
    • System and method for allocating transmission resources
    • 用于分配传输资源的系统和方法
    • US08699435B2
    • 2014-04-15
    • US13097260
    • 2011-04-29
    • David HammarwallGeorge Jöngren
    • David HammarwallGeorge Jöngren
    • H04W4/00
    • H04L5/0042H04L1/003H04L1/0079H04L1/1664H04L1/1671H04L5/0016H04L5/0044H04L5/0053
    • A method for wirelessly transmitting data and control information using a plurality of transmission layers includes determining a number of bits in one or more user data codewords to be transmitted during a subframe and calculating a number of control vector symbols to allocate to control information during the subframe. The number of control vector symbols is calculated based at least in part on the number of bits in the one or more user data codewords to be transmitted during the subframe and an estimate of the number of vector symbols onto which the one or more user data codewords will be mapped. The estimate of the number of vector symbols depends, at least in part, on the number of control vector symbols to be allocated to control information. The method also includes mapping one or more control codewords to the calculated number of control vector symbols and transmitting vector symbols carrying the one or more user data codewords and the one or more control codewords over the plurality of transmission layers during the subframe.
    • 一种用于使用多个传输层无线传输数据和控制信息的方法包括确定在子帧期间要发送的一个或多个用户数据码字中的比特数,并且计算在子帧期间分配给控制信息的多个控制向量符号 。 至少部分地基于在子帧期间要发送的一个或多个用户数据码字中的比特数和对一个或多个用户数据码字所在的向量符号的数量的估计来计算控制向量符号的数量 将被映射。 矢量符号数量的估计至少部分取决于要分配给控制信息的控制向量符号的数量。 该方法还包括将一个或多个控制码字映射到所计算的控制向量符号的数量,以及在子帧期间在多个传输层上传送携带一个或多个用户数据码字和一个或多个控制码字的矢量符号。