METHOD AND APPARATUS FOR MAINTAINING COMMUNICATIONS WHEN RADIO COMMUNICATION IS UNAVAILABLE

    公开(公告)号:CA2564657A1

    公开(公告)日:2005-11-24

    申请号:CA2564657

    申请日:2005-04-19

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus for maintaining communications between a mobile computer (102) and a mobile subscriber unit (104) is disclosed. The method a nd apparatus comprise determining whether a connection is available between the mobile subscriber unit (104) and a radio communications system. If a connection is available, then the method and apparatus include retrieving a first LP address for the mobile computer (102) from the radio communications system. Then, the method and apparatus comprise caching the first IP address in the mobile subscriber unit (104) for use by the mobile computer (102). Finally, the method and apparatus include utilizing the first IP address eve n if the radio communications system is unavailable and updating the first IP address with a second IP address obtained from the radio communications syst em when the radio communications system is available.

    Method and apparatus for maintaining communications when radio communication is unavailable

    公开(公告)号:AU2005242232A1

    公开(公告)日:2005-11-24

    申请号:AU2005242232

    申请日:2005-04-19

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus for maintaining communications between a mobile computer and a mobile subscriber unit is disclosed. The method and apparatus comprise determining whether a connection is available between the mobile subscriber unit and a radio communications system. If a connection is available, then the method and apparatus include retrieving a first IP address for the mobile computer from the radio communications system. Then, the method and apparatus comprise caching the first IP address in the mobile subscriber unit for use by the mobile computer. Finally, the method and apparatus include utilizing the first IP address even if the radio communications system is unavailable and updating the first IP address with a second IP address obtained from the radio communications system when the radio communications system is available.

    METHOD OF SIGNALING REVERSE CHANNEL INFORMATION WITH MINIMALVOICE/DATA DELAY

    公开(公告)号:CA2558551A1

    公开(公告)日:2005-10-06

    申请号:CA2558551

    申请日:2005-02-22

    Applicant: MOTOROLA INC

    Inventor: BIGGS ROBERT A

    Abstract: In a time division multiple access system, a subscriber listens to an assigned channel ( 300 ) and an alternate channel ( 302 ) until a location of reverse channel signaling is determined for the assigned channel. The subscriber also obtains a fixed periodic rate ( 304 ) for the reverse channel signaling. Based on the fixed periodic rate, the subscriber selectively listens to the alternate channel to receive reverse channel signaling while transmitting information on the assigned channel. The base repeater, however, selects the fixed periodic rate for reverse channel signaling and transmits the reverse channel signaling at the fixed periodic rate to the transmitting subscriber. If the base repeater receives a burst belonging to a superframe and determines that any burst in the superframe will collide with the reverse channel signaling, the base repeater buffers any received burst in the superframe and transmits the buffered bursts at a subsequent time.

    Method of signaling reverse channel information with minimal voice/data delay

    公开(公告)号:AU2005226531A1

    公开(公告)日:2005-10-06

    申请号:AU2005226531

    申请日:2005-02-22

    Applicant: MOTOROLA INC

    Inventor: BIGGS ROBERT A

    Abstract: In a time division multiple access system, a subscriber listens to an assigned channel ( 300 ) and an alternate channel ( 302 ) until a location of reverse channel signaling is determined for the assigned channel. The subscriber also obtains a fixed periodic rate ( 304 ) for the reverse channel signaling. Based on the fixed periodic rate, the subscriber selectively listens to the alternate channel to receive reverse channel signaling while transmitting information on the assigned channel. The base repeater, however, selects the fixed periodic rate for reverse channel signaling and transmits the reverse channel signaling at the fixed periodic rate to the transmitting subscriber. If the base repeater receives a burst belonging to a superframe and determines that any burst in the superframe will collide with the reverse channel signaling, the base repeater buffers any received burst in the superframe and transmits the buffered bursts at a subsequent time.

    METHOD FOR UTILIZING MULTIPLE LEVEL ENCRYPTION

    公开(公告)号:CA2526010A1

    公开(公告)日:2004-12-02

    申请号:CA2526010

    申请日:2004-04-20

    Applicant: MOTOROLA INC

    Abstract: In a wireless communication system with an air interface comprised of a plurality of bursts, a communication device (102) receives a burst (200). Th e burst (200) comprises payload (206, 208), a first indicator (202) and a seco nd indicator (204). Upon receipt of the burst (200), the communication device (102) determines a value of the first indicator (202) to determine whether e nd- to-end encryption is applied to at least a portion of the payload, and determines a value of the second indicator (204) to determine whether air interface encryption is applied to at least a portion of the payload.

    Method for synchronizing a control channel to a working channel

    公开(公告)号:AU2004231766A1

    公开(公告)日:2004-11-04

    申请号:AU2004231766

    申请日:2004-02-12

    Applicant: MOTOROLA INC

    Inventor: BIGGS ROBERT A

    Abstract: A subscriber unit ( 104 ) listens to a first channel ( 202 ) comprising a plurality of micro-slots and a plurality of data units. The subscriber unit decodes at least a portion of a data unit on the first channel comprising a micro-slot value. The subscriber unit learns the synchronization between the first channel and a second channel ( 206/300 ) based on the micro-slot value. A first base radio ( 106 1 ) transmits a first plurality of data units on the first channel. A second base radio ( 106 3 ) transmits a second plurality of data units on the second channel. The first plurality of micro-slots on the first channel are synchronized with the second plurality of micro-slots or plurality of frame boundaries on the second channel. The first base radio transmits a message ( 406 ) on the first channel in at least one of the plurality of data units, wherein the message comprises at least a micro-slot value used to associate the synchronization between the first channel and the second channel.

    METHODS FOR INFORMING SUBSCRIBERS OF ADJACENT SITES
    19.
    发明申请
    METHODS FOR INFORMING SUBSCRIBERS OF ADJACENT SITES 审中-公开
    用于通知相邻站点的用户的方法

    公开(公告)号:WO2006104619A3

    公开(公告)日:2007-08-23

    申请号:PCT/US2006006826

    申请日:2006-02-27

    CPC classification number: H04W48/14 H04W36/0061 H04W88/16

    Abstract: Methods for informing a mobile device (110) of adjacent sites (100) in a RF communication system (100) wherein the RF communication system comprises a first network (102) and a second network (104) are disclosed. A mobile device (110) in the first network (102) of the RF communication system (100) updates a signaling gateway (106) with position information of the mobile device (110) wherein the signaling gateway interfaces between the first network (102) and the second network (104) and receives a list of adjacent sites in the second network from the signaling gateway.

    Abstract translation: 公开了在RF通信系统(100)中通知相邻站点(100)的移动设备(110)的方法,其中RF通信系统包括第一网络(102)和第二网络(104)。 RF通信系统(100)的第一网络(102)中的移动设备(110)用信息网关(106)更新具有移动设备(110)的位置信息,其中信令网关在第一网络(102) 和第二网络(104),并且从信令网关接收第二网络中的相邻站点的列表。

    METHODS FOR INFORMING SUBSCRIBERS IN A CHANNELIZED NETWORK OF ADJACENT SITES
    20.
    发明申请
    METHODS FOR INFORMING SUBSCRIBERS IN A CHANNELIZED NETWORK OF ADJACENT SITES 审中-公开
    在相关网站的通道网络中通知订阅者的方法

    公开(公告)号:WO2006115739A2

    公开(公告)日:2006-11-02

    申请号:PCT/US2006013124

    申请日:2006-04-07

    CPC classification number: H04W48/10

    Abstract: A method for informing a mobile device of adjacent sites in a RF communication system is disclosed. The RF communication system comprises a first network and a second network. At a site in the second network of the RF communication system, information is maintained of adjacent sites wherein the adjacent sites are within the first network, and a first list of adjacent sites is broadcast to at least one mobile device within coverage of the site in the second network.

    Abstract translation: 公开了一种用于向RF通信系统中的相邻站点通知移动设备的方法。 RF通信系统包括第一网络和第二网络。 在RF通信系统的第二网络中的站点处,维护相邻站点的信息,其中相邻站点在第一网络内,并且相邻站点的第一列表被广播到站点覆盖范围内的至少一个移动设备 第二个网络。

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