公开(公告)号：BR9205509A

公开(公告)日：1994-04-05

申请号：BR9205509

申请日：1992-08-14

Applicant: MOTOROLA INC

Inventor： JASPER STEVEN C ,  BIRCHLER MARK A ,  SOLOMON JAMES D

IPC: H04L1/02 ,  H04B1/707 ,  H04B3/10 ,  H04J1/00 ,  H04L27/26 ,  H04L27/34 ,  H04L5/12

Abstract: A quad 16 QAM transmission and reception methodology wherein a time domain pilot reference is advantageously associated therewith. There may be one or more such pilot references for each packet of multiple 16 QAM pulses. Depending upon the embodiment, each 16 QAM pulse can include a time domain pilot reference, or an estimated pilot reference for that pulse can be determined either by reference to pilot references in other pulses sharing the same packet, or by reference to pilot references for other previously received 16 QAM pulses corresponding to that same pulse.

公开(公告)号：HK1000528A1

公开(公告)日：1998-04-03

申请号：HK97102132

申请日：1997-11-07

Applicant: MOTOROLA INC

Inventor： JASPER STEVEN C ,  BIRCHLER MARK A

IPC: H04B7/08 ,  H04L1/04 ,  H04L1/06 ,  H04L27/38 ,  H04L ,  H04B

Abstract: A method for implementing diversity reception to counteract effects of channel fading on a transmitted information signal. In diversity receive paths, estimates of complex channel gain are computed based upon pilot symbols inserted from time to time in the transmitted information symbol stream. Phase corrected and weighted samples from the diversity paths are summed prior to the decision process. The squared magnitudes of the diversity path channel gains are summed to provide the proper threshold adjustment.

公开(公告)号：GB2266645B

公开(公告)日：1996-05-08

申请号：GB9312028

申请日：1992-08-14

Applicant: MOTOROLA INC

Inventor： JASPER STEVEN C ,  BIRCHLER MARK A ,  SOLOMON JAMES D

IPC: H04L1/02 ,  H04B1/707 ,  H04B3/10 ,  H04J1/00 ,  H04L27/26 ,  H04L27/34 ,  H04L5/12 ,  H04L23/02

Abstract: A quad 16 QAM transmission and reception methodology wherein a time domain pilot reference is advantageously associated therewith. There may be one or more such pilot references for each packet of multiple 16 QAM pulses. Depending upon the embodiment, each 16 QAM pulse can include a time domain pilot reference, or an estimated pilot reference for that pulse can be determined either by reference to pilot references in other pulses sharing the same packet, or by reference to pilot references for other previously received 16 QAM pulses corresponding to that same pulse.

公开(公告)号：GB2266645A

公开(公告)日：1993-11-03

申请号：GB9312028

申请日：1992-08-14

Applicant: MOTOROLA INC

Inventor： JASPER STEVEN C ,  BIRCHLER MARK A ,  SOLOMON JAMES D

IPC: H04L1/02 ,  H04B1/707 ,  H04B3/10 ,  H04J1/00 ,  H04L27/26 ,  H04L27/34 ,  H04L5/12 ,  H04L23/02

Abstract: A quad 16 QAM transmission (132-136) and reception (600) methodology wherein a time domain pilot reference is advantageously associated therewith. There may be one or more such pilot references for each packet of multiple 16 QAM pulses (200). Depending upon the embodiment, each 16 QAM pulse can include a time domain pilot reference, or an estimated pilot reference (402 and 301) for that pulse can be determined either by reference to pilot references in other pulses sharing the same packet, or by reference to pilot references for other previously received 16 QAM pulses corresponding to that same pulse.

公开(公告)号：WO2008021704A3

公开(公告)日：2008-09-25

申请号：PCT/US2007074698

申请日：2007-07-30

Applicant: MOTOROLA INC ,  KUMAR SURENDER ,  BIRCHLER MARK A ,  EKL RANDY L ,  HILL THOMAS C ,  KOTZIN MICHAEL D ,  LEE WHAY CHIOU ,  MATSON PEGGY K ,  STANFORTH PETER J

Inventor： KUMAR SURENDER ,  BIRCHLER MARK A ,  EKL RANDY L ,  HILL THOMAS C ,  KOTZIN MICHAEL D ,  LEE WHAY CHIOU ,  MATSON PEGGY K ,  STANFORTH PETER J

IPC: G06F15/173 ,  G06F15/16

CPC classification number: H04W40/02 ,  H04W40/10 ,  H04W40/14 ,  H04W40/16 ,  H04W72/00 ,  H04W84/18 ,  H04W88/04 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/30 ,  Y02D70/326 ,  Y02D70/34

Abstract: A system (100) and method (300) for mesh/ad hoc participation is provided. The method can include providing (310) an incentive to a user operating a device in an ad hoc network and determining (320) network resources associated with providing the incentive. The method can establish a credit system for devices within the ad hoc network, evaluate a supply and demand for the network resources, and allocate credits to the devices for forwarding packets in the ad hoc network. The method can determine a delivery capacity for the devices and negotiate an optimal packet route through the devices in the ad hoc network based on the supply and demand.

Abstract translation: 提供了用于网格/临时参与的系统（100）和方法（300）。 该方法可以包括向在自组织网络中操作设备的用户提供（310）激励以及确定（320）与提供激励相关联的网络资源。 该方法可以为ad hoc网络内的设备建立信用系统，评估网络资源的供应和需求，并且将信用分配给设备以在ad hoc网络中转发分组。 该方法可以确定设备的传送容量并且基于供给和需求来协商通过自组织网络中的设备的最优分组路由。

公开(公告)号：ID20412A

公开(公告)日：1998-12-10

申请号：ID980391

申请日：1998-03-19

Applicant: MOTOROLA INC

Inventor： HESS GARRY C ,  MARSAN MARK J ,  BIRCHLER MARK A

IPC: H03D1/04 ,  H04J1/00 ,  H04J11/00 ,  H04L1/20 ,  H04L27/38

Abstract: A communication system (100) employs a method and apparatus for mitigating distortion effects and enhancing signal usability determinations in a receiver (102). The receiver receives a discrete information signal that includes a stream of information symbols. Each information symbol (124) of the stream includes two components: a desired component and an undesired component that includes interference and distortion. The receiver determines an estimate (126) of the desired component of an information symbol and an estimate (130) of the undesired component of the information symbol based on the information symbol itself and its desired component estimate. The undesired component estimate is then scaled by a scaling factor (132) that is derived based on the desired component estimate. An enhanced determination of signal usability (136) for the received symbol is finally determined based on the scaled undesired component estimate (134). In this manner, the enhanced signal usability determination approaches being a function of interference only, substantially exclusive of distortion.

公开(公告)号：CA2250236A1

公开(公告)日：1998-08-06

申请号：CA2250236

申请日：1997-12-19

Applicant: MOTOROLA INC

Inventor： JONES DEBRA A ,  OROS NICHOLAS C ,  BIRCHLER MARK A

IPC: G01S5/00 ,  G01C21/20 ,  G01S1/04 ,  G01S5/06 ,  G01S19/03 ,  H04B7/26 ,  H04W64/00 ,  H04Q7/32 ,  G01S5/10 ,  H04Q7/20

Abstract: Signals exchanged between a fixed infrastructure (110-116) and a mobile unit (160) give rise to M channel quality metrics. The channel quality metrics ar e mapped, via predetermined relationships (501-503), into M corresponding time of arrival variances, which in turn are used to derive M-1 time of arrival differential variances. A time of arrival differential weighting matrix including, in part, the time of arrival differential variances, is used to calculate a WLS solution, which solution is an estimate of a location of the mobile unit. This procedure may be implemented using an infrastructure-based location processor (130) operating in conjunction with the mobile unit, or m ay be performed by either the location processor or mobile unit alone.

公开(公告)号：MX9206164A

公开(公告)日：1993-04-01

申请号：MX9206164

申请日：1992-10-26

Applicant: MOTOROLA INC

Inventor： JASPER STEVEN C ,  BIRCHLER MARK A ,  SOLOMON JAMES D

IPC: H04L1/02 ,  H04B1/707 ,  H04B3/10 ,  H04J1/00 ,  H04L27/26 ,  H04L27/34 ,  H04B1/00

Abstract: A quad 16 QAM transmission and reception methodology wherein a time domain pilot reference is advantageously associated therewith. There may be one or more such pilot references for each packet of multiple 16 QAM pulses. Depending upon the embodiment, each 16 QAM pulse can include a time domain pilot reference, or an estimated pilot reference for that pulse can be determined either by reference to pilot references in other pulses sharing the same packet, or by reference to pilot references for other previously received 16 QAM pulses corresponding to that same pulse.

公开(公告)号：AU7956891A

公开(公告)日：1992-01-07

申请号：AU7956891

申请日：1991-05-30

Applicant: MOTOROLA INC

Inventor： JASPER STEVEN C ,  BIRCHLER MARK A

IPC: H04B7/08 ,  H04L1/04 ,  H04L1/06 ,  H04L27/38 ,  H04L5/12 ,  H04B7/02 ,  H04B7/10

Abstract: A method for implementing diversity reception to counteract effects of channel fading on a transmitted information signal. In diversity receive paths, estimates of complex channel gain are computed based upon pilot symbols inserted from time to time in the transmitted information symbol stream. Phase corrected and weighted samples from the diversity paths are summed prior to the decision process. The squared magnitudes of the diversity path channel gains are summed to provide the proper threshold adjustment.

公开(公告)号：EP0895600A4

公开(公告)日：2001-05-02

申请号：EP97952533

申请日：1997-12-19

Applicant: MOTOROLA INC

Inventor： BIRCHLER MARK A ,  JONES DEBRA A ,  OROS NICHOLAS C

IPC: G01S5/00 ,  G01C21/20 ,  G01S1/04 ,  G01S5/06 ,  G01S19/03 ,  H04B7/26 ,  H04W64/00 ,  G01S3/02 ,  G01C21/00 ,  G01S5/02 ,  G01S5/12 ,  G06G7/78 ,  H04Q7/00 ,  H04Q9/00

CPC classification number: H04W64/00 ,  G01C21/20 ,  G01S1/045 ,  G01S5/06

Abstract: Signals exchanged between a fixed infrastructure (110-116) and a mobile unit (160) give rise to M channel quality metrics. The channel quality metrics are mapped, via predetermined relationships (501-503), into M corresponding time of arrival variances, which in turn are used to derive M-1 time of arrival differential variances. A time of arrival differential weighting matrix including, in part, the time of arrival differential variances, is used to calculate a WLS solution, which solution is an estimate of a location of the mobile unit. This procedure may be implemented using an infrastructure-based location processor (130) operating in conjunction with the mobile unit, or may be performed by either the location processor or mobile unit alone.