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    METHOD AND APPARATUS IN A RADIO COMMUNICATION SYSTEM FOR IMPLEMENTING A FREQUENCY REUSE PLAN
    21.
    发明专利
    METHOD AND APPARATUS IN A RADIO COMMUNICATION SYSTEM FOR IMPLEMENTING A FREQUENCY REUSE PLAN 未知

    公开(公告)号：CA2285074A1

    公开(公告)日：1998-10-08

    申请号：CA2285074

    申请日：1998-02-16

    Applicant: MOTOROLA INC

    Inventor： DEHNER LEO G ,  BAUM KEVIN LYNN ,  HILL THOMAS CASEY

    IPC: H04B15/00 ,  H04B7/26 ,  H04W8/24 ,  H04W16/00 ,  H04B1/10

    Abstract: A radio communication system (100) implements a frequency reuse plan by sending a message (308) simultaneously with other messages in a plurality of cell clusters (202-208) utilizing the frequency reuse plan, which provides a message carrier-to-interference ratio (C/I) sufficient for reception of the message when a receiver (104) is adjusted in accordance with a periodically transmitted pilot symbol (402-408). The C/I is smaller than preferred for reception of the pilot symbol. The pilot symbol is periodically transmitting simultaneously with other pilot symbols in a time diverse manner such that pilot symbol transmissions for adjacent ones of the plurality of cell clusters occur in non-overlapping time slots, thereby generating the larger C/I preferred for reception of the pilot symbol. The pilot symbol and the message are received by the receiver, and the receiver is adjusted in accordance with the pilot symbol to demodulate the message.

    METHOD AND APPARATUS IN A WIRELESS COMMUNICATION SYSTEM FOR IDENTIFYING WHO HAS RECEIVED A GROUP MESSAGE
    22.
    发明专利
    METHOD AND APPARATUS IN A WIRELESS COMMUNICATION SYSTEM FOR IDENTIFYING WHO HAS RECEIVED A GROUP MESSAGE 未知

    公开(公告)号：AU2003223668A1

    公开(公告)日：2003-12-19

    申请号：AU2003223668

    申请日：2003-04-17

    Applicant: MOTOROLA INC

    Inventor： HILL THOMAS CASEY ,  KOTZIN MICHAEL

    IPC: H04W4/12 ,  H04W4/24 ,  H04J3/17

    Abstract: A server ( 102 ) receives ( 302 ) from an originator a group message directed to an address associated in the server with a pre-defined plurality of recipients whose coupling to the wireless communication system at any given time is either active or inactive. The server stores ( 304 ) the group message, and transmits ( 316 ) the group message to each recipient of the pre-defined plurality of recipients whenever the recipient is actively coupled to the wireless communication system. The server indicates ( 318 ) thereafter to the originator that the recipient has received the group message.

    Method and apparatus in a radio communication system for implementing a frequency reuse plan
    23.
    发明专利
    Method and apparatus in a radio communication system for implementing a frequency reuse plan 未知

    公开(公告)号：AU6164598A

    公开(公告)日：1998-10-22

    申请号：AU6164598

    申请日：1998-02-16

    Applicant: MOTOROLA INC

    Inventor： DEHNER LEO G ,  HILL THOMAS CASEY ,  BAUM KEVIN LYNN

    IPC: H04B15/00 ,  H04B7/26 ,  H04W8/24 ,  H04W16/00 ,  H04B1/10

    Abstract: A radio communication system (100) implements a frequency reuse plan by sending a message (308) simultaneously with other messages in a plurality of cell clusters (202-208) utilizing the frequency reuse plan, which provides a message carrier-to-interference ratio (C/I) sufficient for reception of the message when a receiver (104) is adjusted in accordance with a periodically transmitted pilot symbol (402-408). The C/I is smaller than preferred for reception of the pilot symbol. The pilot symbol is periodically transmitting simultaneously with other pilot symbols in a time diverse manner such that pilot symbol transmissions for adjacent ones of the plurality of cell clusters occur in non-overlapping time slots, thereby generating the larger C/I preferred for reception of the pilot symbol. The pilot symbol and the message are received by the receiver, and the receiver is adjusted in accordance with the pilot symbol to demodulate the message.

    Apparatus and method for message re-transmission on demand
    24.
    发明专利
    Apparatus and method for message re-transmission on demand 未知

    公开(公告)号：AU5526896A

    公开(公告)日：1996-11-21

    申请号：AU5526896

    申请日：1996-03-25

    Applicant: MOTOROLA INC

    Inventor： HILL THOMAS CASEY ,  CHOI KWOK KEUNG ,  DANG TRI THIEN ,  HUFFERD LOWELL C III

    IPC: H04W4/12 ,  H04Q7/38

    Abstract: A communication system (100) providing analog message re-transmission on demand comprises a base station (114) and at least one portable communication transceiver (118). The base station (114) transmits an address (414) identifying the portable communication transceiver (118) to which a voice message is directed, and a session number (415) modulated in a first modulation format and a compressed analog message (418) representing the voice message modulated in a second modulation format. When the signal quality of the voice message played back in the portable communication transceiver (118) is perceived by the user to be unintelligible, the user can receive from the base station (114) a re-transmission of the compressed analog message (418) by generating a request for re-transmission of the compressed analog message (418).

    METHOD AND APPARATUS FOR MANAGING AN AD HOC WIRELESS NETWORK
    25.
    发明公开
    METHOD AND APPARATUS FOR MANAGING AN AD HOC WIRELESS NETWORK 有权
    方法和设备，用于管理无线Ad Hoc网络

    公开(公告)号：EP1303925A4

    公开(公告)日：2008-04-02

    申请号：EP01946599

    申请日：2001-06-21

    Applicant: MOTOROLA INC

    Inventor： HILL THOMAS CASEY ,  SOUISSI SLIM ,  GOLDBERG STEVE

    IPC: H04L12/56 ,  H04B7/00

    CPC classification number: H04W84/20

    Abstract: In an ad hoc wireless network having a plurality of members, a master, while communicating on a first communication channel, recognizes (202) a need for assistance in managing the network. In response to the need, the master negotiates (204) with a member of the ad hoc wireless network for the member to become a sub-master. The sub-master then assumes (206) management of a portion of the plurality of members. The sub-master and the portion then communicate (208) on a second communication channel negotiated with the master.

    METHOD AND APPARATUS IN A RADIO COMMUNICATION SYSTEM FOR IMPLEMENTING A FREQUENCY REUSE PLAN
    26.
    发明公开
    METHOD AND APPARATUS IN A RADIO COMMUNICATION SYSTEM FOR IMPLEMENTING A FREQUENCY REUSE PLAN 失效
    频率重用系统的方法和装置的无线电通信系统

    公开(公告)号：EP0972348A4

    公开(公告)日：2002-09-04

    申请号：EP98906416

    申请日：1998-02-16

    Applicant: MOTOROLA INC

    Inventor： DEHNER LEO G ,  HILL THOMAS CASEY ,  BAUM KEVIN LYNN

    IPC: H04B15/00 ,  H04B7/26 ,  H04W8/24 ,  H04W16/00 ,  H04Q7/36

    CPC classification number: H04W8/245 ,  H04B7/2621 ,  H04W16/00

    Abstract: A radio communication system (100) implements a frequency reuse plan by sending a message (308) simultaneously with other messages in a plurality of cell clusters (202-208) utilizing the frequency reuse plan, which provides a message carrier-to-interference ratio (C/I) sufficient for reception of the message when a receiver (104) is adjusted in accordance with a periodically transmitted pilot symbol (402-408). The C/I is smaller than preferred for reception of the pilot symbol. The pilot symbol is periodically transmitting simultaneously with other pilot symbols in a time diverse manner such that pilot symbol transmissions for adjacent ones of the plurality of cell clusters occur in non-overlapping time slots, thereby generating the larger C/I preferred for reception of the pilot symbol. The pilot symbol and the message are received by the receiver, and the receiver is adjusted in accordance with the pilot symbol to demodulate the message.

    PAGING METHOD USING POWER SHIFTED TRANSMITTERS
    28.
    发明公开
    PAGING METHOD USING POWER SHIFTED TRANSMITTERS 失效
    PERSONENRVERVERHREN MIT LEISTUNGSVERSCHOBENEM SENDER

    公开(公告)号：EP0789956A4

    公开(公告)日：1998-10-14

    申请号：EP96921615

    申请日：1996-06-17

    Applicant: MOTOROLA INC

    Inventor： HILL THOMAS CASEY

    IPC: H04M3/42 ,  H04B7/26 ,  H04W88/18

    CPC classification number: H04W88/185

    Abstract: Transmitters (18) in a two-way radio communication system (10) transmit location inquiries to subscribing pagers (14), each transmission occurring at a given power output level. Each pager (14) is capable of responding with an acknowledgment signal identifying a particular transmitter whose signal was captured. Messages are sent to those pagers which respond with proper acknowledgments. To locate a pager which failed to acknowledge receipt of a signal from a particular transmitter, the power output level of at least one transmitter, and preferably a group of transmitters, is changed, and the transmitters re-transmit the location inquiry at the changed power output levels. A similar power-shifting technique is provided for transmitters in a one-way communication system.

    Abstract translation: 双向无线电通信系统（10）中的发射机（18）向订阅寻呼机（14）发送位置查询，每个发射以给定的功率输出电平发生。 每个寻呼机（14）能够用一个确认信号作出响应，该确认信号识别其信号被捕获的特定发射机。 消息被发送给那些以正确的确认响应的寻呼机。 为了定位未能确认从特定发射机接收信号的寻呼机，改变至少一个发射机的功率输出水平，并且优选地改变一组发射机的功率输出水平，并且发射机以改变的功率重新发射位置查询 产出水平。 为单向通信系统中的发射机提供类似的功率转换技术。

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