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    • 31. 发明申请
    • METHODS AND ARRANGEMENTS FOR DYNAMICALLY TRIGGERING THE TRANSMISSION OF SOUNDING REFERENCE SIGNAL IN A TELECOMMUNICATION SYSTEM
    • 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
    • WO2011102768A1
    • 2011-08-25
    • PCT/SE2010/050685
    • 2010-06-18
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)BEHRAVAN, AliASTELY, DavidJÖNGREN, George
    • BEHRAVAN, AliASTELY, DavidJÖNGREN, George
    • H04L5/00H04L27/26
    • 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。
    • 32. 发明申请
    • SRS TRANSMISSION IN PUSCH
    • SRS中的SRS传输
    • WO2011090413A1
    • 2011-07-28
    • PCT/SE2010/050523
    • 2010-05-12
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)BEHRAVAN, AliASTELY, DavidJÖNGREN, George
    • BEHRAVAN, AliASTELY, DavidJÖNGREN, George
    • H04L5/00
    • H04L5/0048H04L5/0023H04L5/0094
    • 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.
    • 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。
    • 34. 发明申请
    • CORRECTION OF FREQUENCY OFFSETS GREATER THAN THE NYQUIST FREQUENCY
    • 频率偏差大于NYQUIS频率的校正
    • WO2010097357A1
    • 2010-09-02
    • PCT/EP2010/052182
    • 2010-02-22
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)ANDGART, NiklasALRIKSSON, PeterAXMON, JoakimLINDOFF, BengtJÖNGREN, George
    • ANDGART, NiklasALRIKSSON, PeterAXMON, JoakimLINDOFF, BengtJÖNGREN, George
    • H04L27/26
    • H04L27/2686H04L27/2657H04L2027/0065
    • There is disclosed a method of estimating frequency offset of a received signal in a terminal apparatus operating in a wireless communication system. The method comprises a) determining a phase change between a first and a second reference symbol of the received signal, wherein the time distance t between the first and the second reference symbols is associated with an observation frequency ƒ such that ƒ=1/ t ; b) determining a preliminary frequency offset Δƒ based on the determined phase change, wherein the preliminary frequency offset Δƒ form a frequency offset hypothesis Δƒ h ; c) decoding at least a part of the received signal, with application of the frequency offset hypothesis Δƒ h , to a decoded signal; d) determining whether the decoded signal is a successful decoding, wherein if the decoded signal is a successful decoding, determining the frequency offset hypothesis Δƒ h to be the estimated frequency offset, and if the decoded signal is not a successful decoding, adjusting the frequency offset hypothesis Δƒ h by an integer n times the observation frequency ƒ such that Δƒ h =Δ ƒ + n • ƒ, where n ∈ [+/- 1, 2, 3,...], and repeating steps c) and d). Computer program, frequency controller, and terminal apparatus are also disclosed.
    • 公开了一种在无线通信系统中运行的终端装置中估计接收信号的频率偏移的方法。 该方法包括:a)确定接收信号的第一和第二参考符号之间的相位变化,其中第一和第二参考符号之间的时间距离t与观测频率相关联,使得= 1 / t; b)确定初步频率偏移? 基于所确定的相位变化,其中, 形成频率偏移假设? H ; c)解码接收信号的至少一部分,应用频偏估计? h,解码信号; d)确定解码信号是否是成功解码,其中如果解码信号是成功解码,则确定频偏估计? h是估计的频偏,如果解码信号不成功解码,调整频偏假设? h乘以观察频率的整数n,使得 h =? + n°,其中n [+/- 1,2,3,...],重复步骤c)和d)。 还公开了计算机程序,频率控制器和终端装置。
    • 35. 发明申请
    • MAPPING USER DATA ONTO A TIME-FREQUENCY RESOURCE GRID IN A COORDINATED MULTI-POINT WIRELESS COMMUNICATIONS SYSTEM
    • 将用户数据映射到协调的多点无线通信系统中的时频资源网
    • WO2010093301A1
    • 2010-08-19
    • PCT/SE2009/051045
    • 2009-09-21
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)DAHLMAN, ErikJÖNGREN, George
    • DAHLMAN, ErikJÖNGREN, George
    • H04L5/00
    • 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 (1 10, 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。
    • 38. 发明申请
    • METHOD AND ARRANGEMENT IN A TELECOMMUNICATIONS SYSTEM
    • 电信系统中的方法和安排
    • WO2009098578A2
    • 2009-08-13
    • PCT/IB2009/000205
    • 2009-02-04
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)HAMMARWALL, DavidJÖNGREN, GeorgeASTELY, DavidLUNDEVALL, Per, Magnus
    • HAMMARWALL, DavidJÖNGREN, GeorgeASTELY, DavidLUNDEVALL, Per, Magnus
    • H04B17/00
    • H04B17/345
    • 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.
    • 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。
    • 40. 发明申请
    • INDEPENDENT CONFIGURATION IDENTITIES IN A HETEROGENEOUS CELLULAR COMMUNICATION NETWORK
    • 异构蜂窝通信网络中的独立配置标识
    • WO2012153229A1
    • 2012-11-15
    • PCT/IB2012/052177
    • 2012-05-01
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)JÖNGREN, GeorgePARKVALL, Stefan
    • JÖNGREN, GeorgePARKVALL, Stefan
    • H04W48/08
    • H04W4/08H04L41/0803H04W16/32H04W48/08H04W84/042H04W84/045H04W88/02
    • Systems and methods are disclosed for using multiple configuration groups having corresponding configuration identity (CID) parameters to configure a trans-mission channel and a reception channel for a user equipment device in a cellular communication network. In one embodiment, a user equipment device "in a cellular communication network obtains CID values for CID parameters for a number of configuration groups. Each of the configuration groups includes one or more transmission channel or reception channel parameters. For each of the configuration groups, the user equipment device configures the parameters in the configuration group based on the CID value obtained for the CID parameter for the configuration group. In this manner, the transmission channel and the reception channel for the user equipment device are configured based on multiple CID values rather than a single physical layer cell identifier for a cell in which the user equipment device is located.
    • 公开了使用具有相应配置标识(CID)参数的多个配置组来配置蜂窝通信网络中的用户设备设备的传输信道和接收信道的系统和方法。 在一个实施例中,蜂窝通信网络中的用户设备设备为多个配置组获得CID参数的CID值,每个配置组包括一个或多个传输信道或接收信道参数,对于每个配置组, 用户设备设备根据为配置组的CID参数获得的CID值配置配置组中的参数,以这种方式,根据多个CID值配置用户设备设备的传输通道和接收通道, 比用户设备设备所在的小区的单个物理层小区标识符。