Method and apparatus for cancelling spread-spectrum noise

    公开(公告)号:GB2278260B

    公开(公告)日:1995-07-19

    申请号:GB9312024

    申请日:1991-12-20

    Applicant: MOTOROLA INC

    Abstract: A spread-spectrum noise canceller (390) is provided for cancelling user code noise from a spread-spectrum communication channel. The spread-spectrum noise canceller (390) includes a receiver for receiving a spread-spectrum signal (302) including a first and at least a second signal as well as a noise canceller (390) operatively coupled to the receiver for reducing spread-spectrum noise in the first received signal by substantially processing the at least second received signal out of the received spread-spectrum signal (302). In addition, a method is provided which cancels user code noise from a spread-spectrum communication channel. The method includes receiving a spread-spectrum signal (302) including a first and at least a second signal and subsequently reducing spread-spectrum noise in the first received signal by substantially processing the at least second received signal out of the received spread-spectrum signal (302).

    METHOD OF TRACKING MOBILE STATION LOCATION
    22.
    发明申请
    METHOD OF TRACKING MOBILE STATION LOCATION 审中-公开
    追踪移动电台位置的方法

    公开(公告)号:WO2004062298A2

    公开(公告)日:2004-07-22

    申请号:PCT/US0339180

    申请日:2003-12-08

    Applicant: MOTOROLA INC

    Inventor: KOTZIN MICHAEL

    CPC classification number: H04W4/02 H04L67/18 H04W64/00

    Abstract: A method in a wireless communication device for tracking the location of the device using cookie files 104. The location of the device 102 is determined by the device 100 itself or the infrastructure 114 in communication with the device. The location cookie files are created by or transmitted to the device by the communication system and can be interrogated or queried immediately by the device, the infrastructure, or stored for later use by both. When a location cookie, or a cookie associated with a location has been stored on the device, it can be queried to determine when the device has moved to or close to the same location as stored in the location cookie. The location in the cookie can also be used to guide the device to a certain location of the location cookie. The location cookie can also be used to track the number of time the device enters a certain location.

    Abstract translation: 无线通信设备中用于使用cookie文件104来跟踪设备的位置的方法。设备102的位置由设备100本身或与设备通信的基础设施114来确定。 位置cookie文件由通信系统创建或传输至设备,并且可以由设备,基础设施立即询问或查询,或者存储以供以后两者使用。 当位置Cookie或与位置关联的cookie已存储在设备上时,可以查询它以确定设备何时移动到或接近位置cookie中存储的相同位置。 Cookie中的位置也可用于指导设备到位置cookie的某个位置。 位置Cookie也可用于跟踪设备进入某个特定位置的时间。

    23.
    发明专利
    未知

    公开(公告)号:DE60119132T2

    公开(公告)日:2006-11-23

    申请号:DE60119132

    申请日:2001-07-30

    Applicant: MOTOROLA INC

    Abstract: A wireless data system (200) and a method (400) of communicating digital data to one or more handheld wireless devices (202) are provided. The method (400) comprise the steps of removing (402) at least one data segment from the digital data to form a first digital data portion (300) and replacing (406) the at least one data segment with an at least one position holder (303, 305) embedded into the first digital data portion. The method further includes forming (409) at least one second digital data portion including the at least one data segment, communicating (413) the first digital data portion (300) to a wireless network (209), and communicating (419) the at least one second digital data portion to a broadcast transmitter (215). The method broadcasts (422) the first digital data portion (300) from the wireless network (209) and broadcasts (425) the at least one second digital data portion from the broadcast transmitter (215). The method combines (427) in the handheld wireless device (202) the at least one data segment of the at least one second digital data portion into the at least one position holder of the first digital data portion (300) to reconstitute the digital data.

    24.
    发明专利
    未知

    公开(公告)号:DE60119132D1

    公开(公告)日:2006-06-01

    申请号:DE60119132

    申请日:2001-07-30

    Applicant: MOTOROLA INC

    Abstract: A wireless data system (200) and a method (400) of communicating digital data to one or more handheld wireless devices (202) are provided. The method (400) comprise the steps of removing (402) at least one data segment from the digital data to form a first digital data portion (300) and replacing (406) the at least one data segment with an at least one position holder (303, 305) embedded into the first digital data portion. The method further includes forming (409) at least one second digital data portion including the at least one data segment, communicating (413) the first digital data portion (300) to a wireless network (209), and communicating (419) the at least one second digital data portion to a broadcast transmitter (215). The method broadcasts (422) the first digital data portion (300) from the wireless network (209) and broadcasts (425) the at least one second digital data portion from the broadcast transmitter (215). The method combines (427) in the handheld wireless device (202) the at least one data segment of the at least one second digital data portion into the at least one position holder of the first digital data portion (300) to reconstitute the digital data.

    Wireless communications device with network cache function

    公开(公告)号:AU9120501A

    公开(公告)日:2002-04-02

    申请号:AU9120501

    申请日:2001-09-21

    Applicant: MOTOROLA INC

    Inventor: KOTZIN MICHAEL

    Abstract: A wireless communications device (100), after determining it can not locally satisfy a request for network data (201), sends a search query or request for data to a proximal device that has a network cache function (202). The proximal device searches for the requested data (203) and if the data is found, then the data is sent to the requesting wireless communications device from the proximal device (206). The data request is sent over a wide area network (204), for example, the Internet, if the proximal device does not have the requested data stored in a memory on the proximal device (204). The wireless communications device stores the data for subsequent use and, if necessary, subsequent provision to a proximal device.

    28.
    发明专利
    未知

    公开(公告)号:DE69230716D1

    公开(公告)日:2000-04-06

    申请号:DE69230716

    申请日:1992-10-19

    Applicant: MOTOROLA INC

    Abstract: A method of reducing interference within a cellular system (10) by partitioning a designated frequency spectrum within a service coverage area (11, 12, 13, 14, 15, 16, or 17) into a first and at least second spectrum inclusive of the designated frequency spectrum and each with an associated power level. Assignment of communication units to a spectrum and power level are based upon distance from the base site (as determined through signal strength measurements). The spectral content of spectra in adjacent service coverage areas is adjusted to include non-coincidental frequencies.

    29.
    发明专利
    未知

    公开(公告)号:DE69228676T2

    公开(公告)日:1999-10-07

    申请号:DE69228676

    申请日:1992-08-24

    Applicant: MOTOROLA INC

    Abstract: A communication system employs a method for exchanging communicated signals between a remote base site (e.g., 63) and a central site (205) on a communication resource (e.g., 77) assigned to the remote base site (63). The central site (205) or the remote base site (63) determines that a signal must be exchanged between the remote base site (63) and the central site (205). The remote base site (63) then allocates the communication resource (77) for exchanging the signal from those communication resources (e.g., 76 and 77) assigned to the remote base site (63) for exchanging signals with communication units (e.g., 18) in the service coverage area (53) of the remote base site (63).

    30.
    发明专利
    未知

    公开(公告)号:DE69125949T2

    公开(公告)日:1997-11-06

    申请号:DE69125949

    申请日:1991-02-20

    Applicant: MOTOROLA INC

    Abstract: In a TDMA cellular network, there is provided a mechanism for shared-carrier frequency-hopping. It comprises: allocating on a frame basis within a reuse diameter to one coverage area during certain timeslot(s) at least one from a pool of TDM-frame-hopped carriers and allocating on a frame basis within that carrier reuse diameter to another coverage area during certain other, substantially non-overlapping timeslot(s) that frame-hopped carrier, all in substantially non-interfering time-synchronism with any proximal reuse of that carrier, whereby the advantages of frequency hopping are obtained. Stated differently, it comprises: at one instant in time, allocating within a reuse diameter to one coverage area at least one of a plurality of hopped carriers and at that same instant in time, allocating within that carrier reuse diameter to another coverage area another of that plurality of hopped carriers, all in time-synchronism with any proximal reuse of that carrier. The control and access carriers may also be included in the hopping pool, causing certain timeslots to be hopped on a sequence different from the others. The pool of hopped carriers is further apportioned among co-located sites into hopping groups, thereby reducing intra-system synchronization requirements. To solve the near/far problem, TDM timeslots bordering hopping boundaries are preferentially allocated to less distant mobile users.

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