利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

222 records (took 0.032 seconds)

    Pilot reference transmission for a wireless communication system
    2.
    发明授权
    Pilot reference transmission for a wireless communication system 有权
    无线通信系统的导频参考传输

    公开(公告)号：US09118387B2

    公开(公告)日：2015-08-25

    申请号：US11858840

    申请日：2007-09-20

    Applicant: Roberto Padovani ,  Peter J. Black ,  Nagabhushana T. Sindhushayana

    Inventor： Roberto Padovani ,  Peter J. Black ,  Nagabhushana T. Sindhushayana

    IPC: H04L12/28 ,  H04B7/26 ,  H04B1/707 ,  H04W52/32 ,  H04J1/16 ,  H04J3/06

    CPC classification number: H04B7/2687 ,  H04B1/707 ,  H04B2201/70701 ,  H04J3/0644 ,  H04W52/325

    Abstract: A pilot reference transmission scheme well suited for high data rate wireless communication systems is disclosed. To maximize the amount of interference from transmissions from neighboring transmission sources (e.g., access points or base stations) during the pilot interval, and hence minimize the amount of interference from non-transmitting sources during the data intervals, the pilot references are transmitted in bursts at predetermined time intervals, and the pilot bursts from the access points are synchronized. This results in maximum interference contributions from non-transmitting neighboring access points, facilitating reliable estimation of worst case carrier-to-interference (C/I), and further allows the receiving devices (e.g., access terminals) to easily recognize the bursts as pilot reference. In one embodiment, each access point transmits the pilot bursts at or near its maximum transmit power level and no user-specific data is transmitted during the pilot bursts.

    Abstract translation: 公开了一种非常适合高数据速率无线通信系统的导频参考传输方案。 为了在导频间隔期间使来自相邻传输源（例如，接入点或基站）的传输的干扰量最大化，并且因此在数据间隔期间最小化来自非发射源的干扰量，导频参考以突发 并且来自接入点的导频突发是同步的。 这导致来自非发射相邻接入点的最大干扰贡献，促进对最差情况下的载波干扰（C / I）的可靠估计，并且还允许接收设备（例如，接入终端）容易地将突发识别为导频 参考。 在一个实施例中，每个接入点在其最大发射功率电平处或其附近发射导频脉冲串，并且在导频突发期间不发送用户特定数据。

    Transmission of overhead channels with timing offset and blanking
    5.
    发明授权
    Transmission of overhead channels with timing offset and blanking 有权
    具有定时偏移和消隐的开销信道的传输

    公开(公告)号：US08335176B2

    公开(公告)日：2012-12-18

    申请号：US12410355

    申请日：2009-03-24

    Applicant: Tingfang Ji ,  Jing Sun

    Inventor： Tingfang Ji ,  Jing Sun

    IPC: H04H20/71

    CPC classification number: H04W56/00 ,  H04B7/2687 ,  H04W48/12 ,  H04W52/243 ,  H04W52/38 ,  H04W52/44

    Abstract: Techniques for mitigating interference in a wireless network are described. In an aspect, interference on overhead channels may be mitigated by (i) sending the overhead channels from different base stations in non-overlapping time intervals and (ii) having each interfering base station reduce its transmit power during time intervals in which the overhead channels are sent by neighbor base stations. In one design, a first base station may send an overhead channel in a first time interval, and a second base station may send the overhead channel in a second time interval that is non-overlapping with the first time interval. The base stations may have different frame timing, which may be offset by an integer number of subframes and/or an integer number of symbol periods. Alternatively, the base stations may have the same frame timing, and the first and second time intervals may cover non-overlapping symbol periods with different indices.

    Abstract translation: 描述了用于减轻无线网络中的干扰的技术。 在一个方面，可以通过以下方式来减轻对开销信道的干扰：（i）以不重叠的时间间隔发送来自不同基站的开销信道，以及（ii）使每个干扰基站在其间的间隔期间降低其发射功率， 由相邻基站发送。 在一种设计中，第一基站可以在第一时间间隔内发送开销信道，并且第二基站可以在与第一时间间隔不重叠的第二时间间隔中发送开销信道。 基站可以具有不同的帧定时，其可以被整数个子帧和/或整数个符号周期偏移。 或者，基站可以具有相同的帧定时，并且第一和第二时间间隔可以覆盖具有不同索引的非重叠符号周期。

    System and method for wireless communication in a time division duplexing region
    6.
    发明授权
    System and method for wireless communication in a time division duplexing region 有权
    时分双工区域无线通信系统和方法

    公开(公告)号：US07965661B2

    公开(公告)日：2011-06-21

    申请号：US11969770

    申请日：2008-01-04

    Applicant: Kenneth L. Stanwood ,  Israel Jay Klein

    Inventor： Kenneth L. Stanwood ,  Israel Jay Klein

    IPC: H04L5/14 ,  H04B7/208

    CPC classification number: H04B7/2621 ,  H04B7/2656 ,  H04B7/2687

    Abstract: A method and system for using half-duplex base stations and half-duplex nodes in a Frequency Division Duplexing region to provide wireless connectivity between the half-duplex base stations and customers in multiple sectors of a cell. The method and system can use two physical channels to form two logical channels. Each logical channel shares both physical channels during alternating frames of time. The half-duplex nodes can include a millimeter-wave band frequency synthesizer configured to transmit and receive on different channels to and from the half-duplex base station. Re-use patterns of the physical channels are used for deployment of half-duplex base stations and half-duplex nodes in the FDD region to minimize co-channel interference and interference due to uncorrelated rain fade. Additional methods and systems utilize full-duplex base stations and smart antenna to communicate with the half-duplex nodes.

    Abstract translation: 一种在频分双工区域中使用半双工基站和半双工节点的方法和系统，用于提供半双工基站与小区多个扇区中的客户之间的无线连接。 该方法和系统可以使用两个物理信道来形成两个逻辑信道。 每个逻辑信道在交替的时间帧期间共享物理信道。 半双工节点可以包括毫米波频率频率合成器，其被配置为在与半双工基站的不同信道上进行发送和接收。 物理信道的重用模式用于在FDD区域中部署半双工基站和半双工节点，以使由于不相关的降雨衰落引起的同信道干扰和干扰最小化。 其他方法和系统利用全双工基站和智能天线与半双工节点进行通信。

    Method and apparatus for enhancing signal-to-noise ratio of position location measurements
    7.
    发明授权
    Method and apparatus for enhancing signal-to-noise ratio of position location measurements 有权
    提高位置测量的信噪比的方法和装置

    公开(公告)号：US07920544B2

    公开(公告)日：2011-04-05

    申请号：US11120411

    申请日：2005-05-02

    Applicant: Samir S. Soliman ,  Peter Gaal

    Inventor： Samir S. Soliman ,  Peter Gaal

    IPC: H04J3/06 ,  H04W24/00 ,  H04B7/00 ,  H04B1/00

    CPC classification number: H04B7/2687 ,  G01S1/042 ,  G01S5/0226 ,  G01S19/12 ,  G01S19/46 ,  H04W64/00

    Abstract: A method and apparatus for generating and use of a position location reference signal that allows a receiver to receive position location signals from relatively weak signal generators when in the presence of a strong signal source. The position location reference signals from multiple sources can be synchronized to occur within a scheduled time slot of a time division multiplexed communication system. During the scheduled time slot, each signal source can configure a transmission that includes a media access control address that corresponds to a value reserved for position location signals. Each signal source also configures the transmission to include a position location reference signal that corresponds to the signal source. The position location signals from each of the signal sources is positioned to occur at a time within the data portion of the scheduled time slot that no neighboring signal source transmits its corresponding position location signal.

    Abstract translation: 一种用于产生和使用位置定位参考信号的方法和装置，其允许接收机在存在强信号源时从相对较弱的信号发生器接收位置信号。 来自多个源的位置定位参考信号可以被同步在时分复用通信系统的调度时隙内。 在调度时隙期间，每个信号源可以配置包括对应于为位置定位信号保留的值的媒体访问控制地址的传输。 每个信号源还将传输配置为包括对应于信号源的位置定位参考信号。 来自每个信号源的位置信号定位成在调度时隙的数据部分内的某个时刻发生，没有相邻信号源发送其对应的位置信号。

    PILOT REFERENCE TRANSMISSION FOR A WIRELESS COMMUNICATION SYSTEM
    8.
    发明申请
    PILOT REFERENCE TRANSMISSION FOR A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统的引导参考传输

    公开(公告)号：US20100323748A1

    公开(公告)日：2010-12-23

    申请号：US12874156

    申请日：2010-09-01

    Applicant: Roberto Padovani ,  Peter J. Black ,  Nagabhushana T. Sindhushayana

    Inventor： Roberto Padovani ,  Peter J. Black ,  Nagabhushana T. Sindhushayana

    IPC: H04B7/00

    CPC classification number: H04B7/2687 ,  H04B1/707 ,  H04B2201/70701 ,  H04J3/0644 ,  H04W52/325

    Abstract: A pilot reference transmission scheme well suited for high data rate wireless communication systems is disclosed. To maximize the amount of interference from transmissions from neighboring transmission sources (e.g., access points or base stations) during the pilot interval, and hence minimize the amount of interference from non-transmitting sources during the data intervals, the pilot references are transmitted in bursts at predetermined time intervals, and the pilot bursts from the access points are synchronized. This results in maximum interference contributions from non-transmitting neighboring access points, facilitating reliable estimation of worst case carrier-to-interference (C/I), and further allows the receiving devices (e.g., access terminals) to easily recognize the bursts as pilot reference. In one embodiment, each access point transmits the pilot bursts at or near its maximum transmit power level and no user-specific data is transmitted during the pilot bursts.

    Abstract translation: 公开了一种非常适合高数据速率无线通信系统的导频参考传输方案。 为了在导频间隔期间使来自相邻传输源（例如，接入点或基站）的传输的干扰量最大化，并且因此在数据间隔期间最小化来自非发射源的干扰量，导频参考以突发 并且来自接入点的导频突发是同步的。 这导致来自非发射相邻接入点的最大干扰贡献，促进对最差情况下的载波干扰（C / I）的可靠估计，并且还允许接收设备（例如，接入终端）容易地将突发识别为导频 参考。 在一个实施例中，每个接入点在其最大发射功率电平处或其附近发射导频脉冲串，并且在导频突发期间不发送用户特定数据。

    Method and device for communicating a message on a network and systems using them
    9.
    发明授权
    Method and device for communicating a message on a network and systems using them 失效
    用于在网络上传送消息的方法和设备以及使用它们的系统

    公开(公告)号：US07747783B2

    公开(公告)日：2010-06-29

    申请号：US11356109

    申请日：2006-02-17

    Applicant: Isabelle Morvan ,  Alain Caillerie ,  Lionel Tocze

    Inventor： Isabelle Morvan ,  Alain Caillerie ,  Lionel Tocze

    IPC: G06F15/173 ,  H04B7/212

    CPC classification number: H04W48/20 ,  H04B7/2687 ,  H04W56/00 ,  H04W88/04

    Abstract: The communication method concerns communication stations adapted to communicate with each other when a base station supplies a synchronisation signal to mobile stations synchronising on this signal.This method includes a request operation (901) during which a first base station (300) transmits, to a mobile station (301), a request for the storage in memory and transmission, by said mobile station, of a message, to a message destination communication station (302) which is not synchronised with said first base station.

    Abstract translation: 通信方法涉及当基站向与该信号同步的移动台提供同步信号时适于彼此通信的通信站。 该方法包括请求操作（901），在该请求操作（901）期间，第一基站（300）向移动台（301）发送存储器中的存储请求并由所述移动站向消息发送消息 目的地通信站（302），其与所述第一基站不同步。

    Method for synchronizing a radio communication system that is divided up into radio cells
    10.
    发明授权
    Method for synchronizing a radio communication system that is divided up into radio cells 有权
    用于同步被分成无线电小区的无线电通信系统的方法

    公开(公告)号：US07742779B2

    公开(公告)日：2010-06-22

    申请号：US10563942

    申请日：2004-06-28

    Applicant: Mario Konegger ,  Walter Kunz

    Inventor： Mario Konegger ,  Walter Kunz

    IPC: H04B7/00

    CPC classification number: H04B7/2687

    Abstract: A method synchronizes a radio communication system that is divided up into radio cells. According to the method, every radio cell has one base station each for the radio coverage of a plurality of mobile stations assigned to the radio cell. The base station receives, in addition to mobile station signals of its own radio cell, mobile station signals of neighboring radio cells. The base station determines, on the basis of the mobile station signals received, the number of mobile stations and compares this number with a defined threshold value. When the number determined falls below the threshold value, a first synchronization method for synchronizing the base station and the assigned mobile stations is used, the first method corresponding to an assigned transmission standard of the radio communication system. When the threshold value is exceeded, a second synchronization method is used for synchronizing the base station and the assigned mobile stations.

    Abstract translation: 一种方法使被分成无线电小区的无线电通信系统同步。 根据该方法，每个无线电小区具有分配给无线电小区的多个移动台的无线覆盖的一个基站。 基站除了自己的无线电小区的移动台信号外还接收相邻无线电小区的移动站信号。 基站根据所接收到的移动站信号，确定移动站的数量，并将其与定义的阈值进行比较。 当确定的数量低于阈值时，使用用于使基站和分配的移动台同步的第一同步方法，第一方法对应于无线电通信系统的分配的传输标准。 当超过阈值时，使用第二同步方法来同步基站和分配的移动台。

Patent Agency Ranking