公开(公告)号：FI20020648A

公开(公告)日：2002-04-29

申请号：FI20020648

申请日：2002-04-04

Applicant: MOTOROLA INC

Inventor： REED JOHN DOUGLAS ,  SMITH JACK ANTHONY

IPC: G01S5/00 ,  G01S5/02 ,  G01S19/05 ,  G01S19/48 ,  H04Q7/34 ,  G01S

Abstract: A method and apparatus for assigning location estimates from a first transceiver of a plurality of wireless transceivers to a second transceiver is disclosed. The present invention makes use of a low power short-range auxiliary communication link incorporated within networked devices to interact with nearby devices for obtaining location estimates of the current location of a device. Confidence levels are then assigned to the information obtained from the interactions with the nearby devices, and a determination of whether to update the location estimate is made.

公开(公告)号：BR9808124A

公开(公告)日：2000-03-08

申请号：BR9808124

申请日：1998-01-20

Applicant: MOTOROLA INC

Inventor： LAIRD KEVIN MICHAEL ,  SMITH JACK ANTHONY

IPC: H04B1/707 ,  H04J11/00

Abstract: A peak-reducing waveform is estimated and summed with a composite signal to reduce the peak-to-average power ratio of the composite signal. The estimate of the peak-reducing waveform is modified to have Walsh code components orthogonal to the assigned Walsh codes. An iterative process of estimating subsequent peak-reducing waveform is implemented to produce a peak-reducing waveform which, when summed with the composite signal, results in a composite signal having a peak-to-average ratio at a desired level and thus does not have the effects of remodulating the assigned Walsh codes. Constraints on the magnitude of the unassigned Walsh code components can be included for controlling the power level under the unassigned Walsh codes.

公开(公告)号：EP1021881A4

公开(公告)日：2003-04-09

申请号：EP98902609

申请日：1998-01-20

Applicant: MOTOROLA INC

Inventor： LAIRD KEVIN MICHAEL ,  SMITH JACK ANTHONY

IPC: H04B1/707 ,  H04J11/00

CPC classification number: H04B1/707 ,  H04B2201/70706

Abstract: A peak-reducing waveform (202) is estimated and summed with a composite signal (102) to reduce a peak-to-average power ratio of the composite signal (104). The estimate of the peak-reducing waveform (204) is modified to have Walsh code components (205) orthogonal to the assigned Walsh codes (210). An iterative process of estimating subsequent peak-reducing waveform is implemented to produce a peak-reducing waveform (202) which, when summed with the composite signal (102), results in a composite signal (104) having a peak-to-average ratio at a desired level and thus does not have the effects of remodulating the assigned Walsh codes. Constraints on the magnitude of the unassigned Walsh code components can be included for controlling the power level under the unassigned Walsh codes.

公开(公告)号：EP1142174A4

公开(公告)日：2002-02-13

申请号：EP99973595

申请日：1999-11-01

Applicant: MOTOROLA INC

Inventor： REED JOHN DOUGLAS ,  SMITH JACK ANTHONY

IPC: H04L12/56 ,  H04W12/10 ,  H04W28/22 ,  H04W36/06 ,  H04W72/04 ,  H04W72/12 ,  H04J1/00 ,  H04Q7/38

CPC classification number: H04W72/048 ,  H04W28/22

Abstract: In a method for allocating a system resource (46) to subscribers of a wireless communication system a resource sensitivity indicator is determined for a system resource allocated by the wireless communication system for each of a first subscriber and a second subscriber (24, 26, 28). The system resource may include a level of service, a channel frequency, or a data rate. Next, an inefficient allocation of the system resource detected. One of the first and second subscribers having a lower resource sensitivity indicator is selected. Finally, an allocation of the system resource is changed for the selected subscriber unit to increase the efficiency of the allocation of the system resource.

公开(公告)号：EP1138132A4

公开(公告)日：2004-03-17

申请号：EP99958732

申请日：1999-11-01

Applicant: MOTOROLA INC

Inventor： REED JOHN DOUGLAS ,  SMITH JACK ANTHONY

IPC: H04B7/005 ,  H04B7/26 ,  H04W36/18 ,  H04W36/22 ,  H04W36/38 ,  H04W52/34 ,  H04W52/40 ,  H04Q7/36

CPC classification number: H04W52/343 ,  H04B7/2628 ,  H04W36/18 ,  H04W36/22 ,  H04W36/38 ,  H04W52/346 ,  H04W52/40

Abstract: In a method for managing resources in a base station in a code division multiple access communication (20), a resource shortage of a selected resource in a first base station (22) is detected. Next, a subscriber unit (34) having a communication link (38) with the first base station is selected. Thereafter, a handoff direction message is sent to the selected subscriber unit to cause a second base station (26) to contribute the selected resource, wherein the resource shortage in the first base station is alleviated. Resources that may experience shortages in the first base station include transmission power and available user spreading codes.