中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.02 seconds)

    RESOURCE SHARING IN COMMUNICATION SYSTEMS
    2.
    发明专利
    RESOURCE SHARING IN COMMUNICATION SYSTEMS 未知

    公开(公告)号：GB2442042A

    公开(公告)日：2008-03-26

    申请号：GB0618563

    申请日：2006-09-20

    Applicant: MOTOROLA INC

    Inventor： MUCK MARKUS D ,  BERNARDIN PHILIPPE ,  CHENGELEROYEN GEMINI B ,  GAULT SOPHIE

    IPC: H04W28/18

    Abstract: A communication system includes a plurality of access points (107) supporting a plurality of remote stations (101, 103, 105). A resource controller (111) comprises a receiver (201) receiving operating status messages from the access points (107) and a resource constraint processor (203) which determines common resource scheme constraints for the remote stations (101, 103, 105) in response to the status messages. The resource scheme constraints are distributed to the remote stations (101, 103, 105) which ensure that any selected resource scheme meets the resource scheme constraints. The resource controller (ill) furthermore comprises a time interval controller (207) which allocates different resource scheme modification time intervals to different subgroups of the remote stations (101, 103, 105). Each remote station (101, 103, 105) is arranged to autonomously select a resource scheme but can only change the resource scheme during a resource scheme modification time interval allocated to the remote station (101, 103, 105). The invention allows improved resource sharing and provides advantages of both distributed and centralized resource sharing approaches.

    Transmission of signalling information in an OFDM communication system
    3.
    发明专利
    Transmission of signalling information in an OFDM communication system 未知

    公开(公告)号：GB2425922B

    公开(公告)日：2007-08-01

    申请号：GB0508797

    申请日：2005-05-03

    Applicant: MOTOROLA INC

    Inventor： ROUQUETTE-LEVEIL STEPHANIE ,  COURVILLE DE MARC G BERNARD ,  LABBE PATRICK ,  MUCK MARKUS D ,  SIMOENS SEBASTIEN

    IPC: H04L27/26

    Abstract: An Orthogonal Frequency Division Multiplexing, OFDM, transmitter comprises a signalling data generator (113) which generates a set of data symbols indicative of physical layer characteristics of data transmissions from the OFDM transmitter (100). A first symbol generator (115) and second symbol generator (117) generates a first and second OFDM signalling symbol by allocating the set of data symbols to subcarriers. The allocation of the physical layer data symbols to subcarriers is different for the first OFDM signalling symbol and the second OFDM signalling symbol. A data packet generator (105) and transmitter (101) generate a data packet and transmit this to an OFDM receiver (300). The OFDM receiver (300) determines the physical layer data symbols by combining the data symbols of corresponding subcarriers of the first and second OFDM signalling symbols and uses the resulting information to decode the user data of the data packet.

    Transmission of signalling information in an OFDM communication system
    4.
    发明专利
    Transmission of signalling information in an OFDM communication system 未知

    公开(公告)号：GB2425922A

    公开(公告)日：2006-11-08

    申请号：GB0508797

    申请日：2005-05-03

    Applicant: MOTOROLA INC

    Inventor： ROUQUETTE-LEVEIL STEPHANIE ,  COURVILLE DE MARC G BERNARD ,  LABBE PATRICK ,  MUCK MARKUS D ,  SIMOENS SEBASTIEN

    IPC: H04L27/26

    Abstract: An Orthogonal Frequency Division Multiplexing, OFDM, transmitter comprises a signalling data generator (113) which generates a set of data symbols (e.g. in the SIG-N field) indicative of physical layer characteristics (e.g. modulation scheme, coding rate etc.) of data transmissions from the OFDM transmitter (100). A first symbol generator (115) and second symbol generator (117) generates a first and second OFDM signalling symbol (the second symbol being a repetition of the first symbol), by allocating the set of data symbols to subcarriers. The allocation of the physical layer data symbols to subcarriers is different for the first OFDM signalling symbol and the second OFDM signalling symbol. A data packet generator (105) and transmitter (101) generate a data packet and transmit this to an OFDM receiver (300). The OFDM receiver (300) determines the physical layer data symbols by combining the data symbols of corresponding subcarriers of the first and second OFDM signalling symbols and uses the resulting information to decode the user data of the data packet. An improved performance and range extension is achieved.

    TRANSMISSION OF SIGNALLING INFORMATION IN AN OFDM COMMUNICATION SYSTEM
    5.
    发明申请
    TRANSMISSION OF SIGNALLING INFORMATION IN AN OFDM COMMUNICATION SYSTEM 审中-公开
    OFDM通信系统中信令信息的传输

    公开(公告)号：WO2006119159A2

    公开(公告)日：2006-11-09

    申请号：PCT/US2006016567

    申请日：2006-05-01

    Applicant: MOTOROLA INC ,  DE COURVILLE MARC G BERNARD ,  ROUQUETTE-LEVEIL STEPHANIE ,  LABBE PATRICK ,  MUCK MARKUS D ,  SIMOENS SEBASTIEN

    Inventor： DE COURVILLE MARC G BERNARD ,  ROUQUETTE-LEVEIL STEPHANIE ,  LABBE PATRICK ,  MUCK MARKUS D ,  SIMOENS SEBASTIEN

    IPC: H04J11/00 ,  H04L27/26

    CPC classification number: H04L5/0094 ,  H04L5/0007 ,  H04L5/0046

    Abstract: An Orthogonal Frequency Division Multiplexing, OFDM, transmitter comprises a signalling data generator (113) which generates a set of data symbols indicative of physical layer characteristics of data transmissions from the OFDM transmitter (100). A first symbol generator (115) and second symbol generator (117) generates a first and second OFDM signalling symbol by allocating the set of data symbols to subcarriers. The allocation of the physical layer data symbols to subcarriers is different for the first OFDM signalling symbol and the second OFDM signalling symbol. A data packet generator (105) and transmitter (101) generate a data packet and transmit this to an OFDM receiver (300). The OFDM receiver (300) determines the physical layer data symbols by combining the data symbols of corresponding subcarriers of the first and second OFDM signalling symbols and uses the resulting information to decode the user data of the data packet.

    Abstract translation: 正交频分复用OFDM，发射机包括信令数据生成器（113），其产生指示来自OFDM发射机（100）的数据传输的物理层特性的一组数据符号。 第一符号发生器（115）和第二符号发生器（117）通过将该组数据符号分配给子载波来产生第一和第二OFDM信令符号。 物理层数据符号分配给子载波对于第一OFDM信令符号和第二OFDM信令符号是不同的。 数据包发生器（105）和发送器（101）产生数据包并将其发送到OFDM接收器（300）。 OFDM接收机（300）通过组合第一和第二OFDM信令符号的相应子载波的数据符号来确定物理层数据符号，并使用得到的信息来解码数据分组的用户数据。

    OFDM COMMUNICATION SYSTEM, COMMUNICATION UNIT AND METHOD OF COMMUNICATING OFDM SIGNALS
    6.
    发明申请
    OFDM COMMUNICATION SYSTEM, COMMUNICATION UNIT AND METHOD OF COMMUNICATING OFDM SIGNALS 审中-公开
    OFDM通信系统，通信单元和通信OFDM信号的方法

    公开(公告)号：WO2007133888A3

    公开(公告)日：2008-10-16

    申请号：PCT/US2007066975

    申请日：2007-04-19

    Applicant: MOTOROLA INC ,  MUCK MARKUS D ,  LABBE PATRICK

    Inventor： MUCK MARKUS D ,  LABBE PATRICK

    IPC: H04J11/00 ,  H04B7/185 ,  H04J3/16 ,  H04L12/28

    CPC classification number: H04L27/2608 ,  H04B1/0053 ,  H04B1/0067 ,  H04B1/406

    Abstract: An orthogonal frequency division multiplex (OFDM) wireless communication system supports two OFDM communication modes of operation. A first OFDM communication mode of operation utilises a first respective communication bandwidth and a second OFDM communication mode of operation utilises a second communication bandwidth that incorporates the first communication bandwidth and at least one side carrier of the first communication bandwidth, where the at least one side carrier is arranged to carry no power in the first mode of operation. Signalling information is communicated in the at least one side-carrier in the second mode of operation, thereby indicating that the second mode of communication is to be used.

    Abstract translation: 正交频分复用（OFDM）无线通信系统支持两种OFDM通信模式。 第一OFDM通信操作模式利用第一相应的通信带宽，并且第二OFDM通信操作模式利用包含第一通信带宽的第二通信带宽和第一通信带宽的至少一个侧向载波，其中至少一个侧 载波被布置成在第一操作模式中不携带电力。 在第二操作模式中，在至少一个侧载波中传送信令信息，从而指示要使用第二通信模式。

Patent Agency Ranking