利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

109 条记录 (耗时 0.017 秒)

    TIMING OF UPLINK TRANSMISSIONS IN A MULTI-CARRIER COMMUNICATION SYSTEM
    53.
    发明公开
    TIMING OF UPLINK TRANSMISSIONS IN A MULTI-CARRIER COMMUNICATION SYSTEM 审中-公开
    EINEMMEHRTRÄGER-KOMMUNIKATIONSSYSTEM中的TIMING VON UPLINK-ÜBERTRAGUNGEN

    公开(公告)号：EP2553987A1

    公开(公告)日：2013-02-06

    申请号：EP11710216.0

    申请日：2011-03-28

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： LINDOFF, Bengt ,  WALLÉN, Anders ,  ANDGART, Niklas ,  KAMUF, Matthias ,  BERGLJUNG, Christian

    IPC分类号： H04W56/00

    CPC分类号： H04W56/0045 ,  H04L5/001 ,  H04W72/12

    摘要： A terminal with transmitter and receiver operates in a multi-carrier communication system and receives at least two downlink carriers. One or more timing advance commands are received, each associated with a group of one or more uplink carriers, each group being associated with one or more of the received downlink carriers. For each downlink carrier associated with one of the groups of uplink carriers, one is selected as a reference downlink carrier; the reference downlink carrier timing is ascertained; and a transmission time period is ascertained based on the timing of the downlink reference carrier and an offset specified by the timing advance command associated with the group of uplink carriers. The transmission time period comprises a start time and a stop time. Transmission is initiated at an earliest transmission start time of the ascertained transmission time periods and is ceased at a latest ascertained stop time.

    摘要翻译： 具有发射机和接收机的终端在多载波通信系统中操作并且接收至少两个下行链路载波。 接收一个或多个定时提前命令，每个定时提前命令与一个或多个上行链路载波的组相关联，每个组与所接收的下行链路载波中的一个或多个相关联。 对于与上行链路载波组中的一个相关联的每个下行链路载波，选择一个作为参考下行链路载波; 确定参考下行链路载波定时; 并且基于下行链路参考载波的定时和由与上行链路载波组相关联的定时提前命令指定的偏移来确定传输时间段。 传输时间段包括开始时间和停止时间。 传输在所确定的传输时间段的最早的传输开始时间开始，并且在最后确定的停止时间停止。

    TELECOMMUNICATIONS METHOD AND APPARATUS FOR FACILITATING POSITIONING MEASUREMENTS
    56.
    发明公开
    TELECOMMUNICATIONS METHOD AND APPARATUS FOR FACILITATING POSITIONING MEASUREMENTS 有权
    通信方法和装置的定位测量结果使能

    公开(公告)号：EP2443886A1

    公开(公告)日：2012-04-25

    申请号：EP09788574.3

    申请日：2009-06-22

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： KAZMI, Muhammad ,  LINDOFF, Bengt ,  MÜLLER, Walter

    IPC分类号： H04W64/00

    CPC分类号： H04W64/003 ,  H04B17/20 ,  H04W24/02 ,  H04W48/04 ,  H04W64/00 ,  H04W76/20 ,  H04W76/27 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08

    摘要： A node (28) of a radio access network, RAN, configured for operation over a radio interface (32) with a wireless terminal (30), and a method for operating such a node. The node is characterized by a computer-implemented node radio resource control, RRC, unit (52) and a transceiver (48). The computer-implemented node radio resource control, RRC, unit (52) is configured to prepare a measurement request message for transmission to the wireless terminal (30). The measurement request message being configured both to direct the wireless terminal (30) to perform measurements relative to position determination signals transmitted from plural cells of the radio access network (20) and to provide a parameter which specifies or influences timing of a mode change, the mode change being between a discontinuous mode and a modified mode. The discontinuous mode being configured to comprise at least one of non-reception periods between reception periods and non-transmission periods between transmission periods, and wherein relative to the discontinuous mode the modified mode is configured to shortened or eliminated at least one of following: i) the non-reception periods, and ii) the non-transmission periods. The transceiver (48) is configured to transmit the measurement request message to the wireless terminal (30) over the radio interface (32).

    ALLOCATION OF PRIMARY AND SECONDARY SYNCHRONIZATION CODE SEQUENCES TO CELLS IN A WIRELESS COMMUNICATION SYSTEM
    57.
    发明公开
    ALLOCATION OF PRIMARY AND SECONDARY SYNCHRONIZATION CODE SEQUENCES TO CELLS IN A WIRELESS COMMUNICATION SYSTEM 有权
    中小学SEKUNDÄRSYNCHRONISATIONSKODESEQUENZEN到细胞奖，无线通信系统

    公开(公告)号：EP2427983A1

    公开(公告)日：2012-03-14

    申请号：EP09788537.0

    申请日：2009-05-08

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： LINDOFF, Bengt ,  ANDGART, Niklas ,  KANGAS, Ari ,  ROSENQVIST, Anders

    IPC分类号： H04L5/00 ,  H04B7/26

    CPC分类号： H04L5/0037 ,  H04J11/0069 ,  H04J13/18

    摘要： Allocation of cell IDs in a cellular communication system includes determining a candidate allocation pattern of primary and secondary synchronization signal sequences for a candidate set of two or more cells. A performance metric is applied to the candidate allocation pattern to ascertain a performance indicator for the candidate allocation pattern, wherein the performance indicator indicates a quality of positioning performance for the candidate set of two or more cells. Cell-specific positioning performance for each cell in the candidate set of cells can be considered to derive the performance indicator of the candidate allocation pattern. If the performance indicator indicates acceptable positioning performance, primary and secondary synchronization signal sequences are allocated to respective ones of base stations corresponding to the two or more cells in accordance with the candidate allocation pattern. Otherwise, the process is repeated for a different candidate allocation pattern.

    IDENTIFYING MULTI-COMPONENT CARRIER CELLS
    58.
    发明公开
    IDENTIFYING MULTI-COMPONENT CARRIER CELLS 有权
    多分量载波小区的识别

    公开(公告)号：EP2294869A1

    公开(公告)日：2011-03-16

    申请号：EP09765745.6

    申请日：2009-06-03

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： LINDOFF, Bengt ,  PARKVALL, Stefan ,  JADING, Ylva ,  DAHLMAN, Erik

    IPC分类号： H04W48/16

    CPC分类号： H04W48/16 ,  H04J11/0069 ,  H04W48/08

    摘要： Methods and apparatus for generating and determining multi-component carrier cells, without the use of neighbor-cell lists, are described. Methods for generating and informing a communication system terminal about other component carriers belonging to a certain cell identity (ID), and methods and apparatus for a mobile terminal utilizing extended synchronization information for doing multi-component carrier cell search are described. Also, methods for multi-component carrier measurements and methods of reporting such measurements to a network are described.

    SYSTEM AND METHOD OF RECEIVING AND PROCESSING MULTICOMMUNICATION SIGNALS
    59.
    发明公开
    SYSTEM AND METHOD OF RECEIVING AND PROCESSING MULTICOMMUNICATION SIGNALS 有权
    系统和方法用于接收和处理多通信信号

    公开(公告)号：EP2281377A1

    公开(公告)日：2011-02-09

    申请号：EP09732957.7

    申请日：2009-03-27

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： LINDOFF, Bengt ,  ANDGART, Niklas ,  NORDSTRÖM, Fredrik

    IPC分类号： H04L27/26 ,  H04L5/00

    CPC分类号： H04L5/0007 ,  H04L5/0041 ,  H04L27/2657 ,  H04L27/2662 ,  H04W56/0035 ,  H04W56/0045

    摘要： A receiver receives and front-end processes a plurality of component carrier signals, each carrier spaced apart in frequency. The digitized, baseband component carrier signals are inspected to determine estimates of timing offsets between the carriers. A control unit selects a first component carrier signal having data scheduled to the receiver. If data is scheduled to the receiver on other component carrier signals, the control unit generates timing and frequency offset adjustment control signals to time-and frequency-align each other component carrier signal having relevant data, to the first component carrier signal. All the relevant component carrier signals are then combined, and a single OFDM symbol, spanning all the relevant component carriers, is presented to an FFT for symbol detection.