公开(公告)号：AU2003294423A1

公开(公告)日：2004-07-09

申请号：AU2003294423

申请日：2003-11-18

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D

IPC: H04W48/18

Abstract: A wireless communications unit 200 , and corresponding method within, is arranged and constructed for choosing a system selection algorithm that is used for selecting a system to provide services for the communications unit and comprises: means for associating a location with the wireless communications unit 223 215 ; a controller 209 for choosing a system selection algorithm from a plurality of such algorithms based on the location, where the chosen algorithm includes scan parameters (FIG. 3 ) that vary with the location; and a receiver 205 controllable by the controller according to the chosen algorithm to search for a system to provide service for the wireless communications unit.

公开(公告)号：AU2003282556A1

公开(公告)日：2004-05-13

申请号：AU2003282556

申请日：2003-10-09

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D

IPC: H04L12/56 ,  H04W28/16

Abstract: A method and apparatus dynamically assigns each of a plurality of different information streams associated with one wireless communication unit (12a), to independent communication resources from different communication resource pools from each of a plurality of different wireless network elements (14a-14n), based on, for example, quality of service requirement data determined for each of the information streams. As such, the wireless communication unit (12a) may establish two or more separate links using two or more completely independent radio resources from different wireless base stations in the same system.

公开(公告)号：CA2298647C

公开(公告)日：2003-01-21

申请号：CA2298647

申请日：1998-07-14

Applicant: MOTOROLA INC

Inventor： ROZANSKI WALTER J JR ,  KOTZIN MICHAEL D

IPC: H04L27/30 ,  H04B7/06 ,  H04B7/10 ,  H04B7/26 ,  H04B15/00 ,  H04J11/00 ,  H04Q7/36 ,  H04K1/00

Abstract: Different orthogonal codes (W x, W y) are used to spread common pilot channe ls (Pilot A) intended for transmission to a particular mobile station (106) within a coverage area (sector A) to implement forward link transmit diversity. By implementing separate, different orthogonal codes (W x, W y) for each pilot channel (Pilot A), the pilot signals transmitted via antennas (218, 222) to a common coverage area (sector A) are orthogonal to one another and thus do not degrade system performance. Additionally, the use of different orthogonal codes (W x, W y) for each pilot channel (Pilot A) allows the mobile station (106) to discern which pilot channel spread with a different orthogonal code includes corresponding traffic channel (TCH) information. This allows forward link transmit diversity to be enabled/disabled based on conditions associated with the environment, the communications channel, etc. without a complete loss of information as seen by the mobile station (106).

公开(公告)号：AU1404602A

公开(公告)日：2002-07-01

申请号：AU1404602

申请日：2001-11-05

Applicant: MOTOROLA INC

Inventor： KOURTIS STAMATIS ,  KOTZIN MICHAEL D ,  BENSON MAYA

IPC: H04L12/56 ,  H04W52/02 ,  H04W76/04 ,  H04W88/04 ,  H04W88/06 ,  H04W88/10 ,  H04B7/26

公开(公告)号：AU9648501A

公开(公告)日：2002-04-15

申请号：AU9648501

申请日：2001-10-02

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D

IPC: H04B1/38 ,  H04B7/04 ,  H04B7/08 ,  H04B1/06 ,  H04B17/02

公开(公告)号：AU8090001A

公开(公告)日：2002-02-13

申请号：AU8090001

申请日：2001-07-30

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D ,  THOMAS HOWARD J

IPC: A63F13/12 ,  H04H20/18 ,  H04H20/24 ,  H04H60/90 ,  H04L12/18 ,  H04L29/06 ,  H04L29/08 ,  H04Q7/22

Abstract: A wireless data system (200) and a method (300) of communicating digital data to a handheld wireless device (202) are provided. The wireless data system (200) includes a plurality of handheld wireless devices (202) capable of receiving digital data comprised of a first digital data portion and at least one second digital data portion. The wireless data system (200) also includes a wireless network (209) capable of transmitting (318) the first digital data portion to the plurality of handheld wireless devices (202), a data server (212) for creating the digital data, the data server capable of communicating with the wireless network, and at least one broadcast transmitter (215) communicating with the data server, the at least one broadcast transmitter broadcasting (321) the at least one second digital data portion to the plurality of handheld wireless devices. The plurality of handheld wireless devices (202) are capable of receiving and combining (323) the first digital data portion and the at least one second digital data portion.

公开(公告)号：FI106664B

公开(公告)日：2001-03-15

申请号：FI932823

申请日：1993-06-18

Applicant: MOTOROLA INC

Inventor： LABEDZ GERALD P ,  KOTZIN MICHAEL D ,  SCHULER JOSEPH J

IPC: H04B7/005 ,  H04B1/10 ,  H04L25/02 ,  H04L25/03 ,  H04L25/30 ,  H04L27/01 ,  H04L27/38

Abstract: An equalization system for equalizing a corrupted signal is disclosed. The equalization system includes a complex matched filter (400) and a maximum likelihood sequence estimator (MLSE) (405) for removing the effects of phase shift, amplitude variations, intersymbol interference, etc. resulting from multi-pathing and noise contributed by the receiver front end. The system estimates a correlation signal C(t) (505) and synchronizes C(t) 505 to maximize its energy as seen on the taps of the complex matched filter (400). Taps having amplitude coefficients below a predetermined threshold are set to zero to produce a modified CIR estimate. The modified CIR estimate which has had the effects of noise virtually eliminated, is then used to construct the complex matched filter (400) and is also used as input to the MLSE (405) to produce a better equalized data signal.

公开(公告)号：BR9908711A

公开(公告)日：2000-11-21

申请号：BR9908711

申请日：1999-03-11

Applicant: MOTOROLA INC

Inventor： BRUCKERT EUGENE J ,  KOTZIN MICHAEL D

IPC: G01S5/14 ,  G01S19/06 ,  G01S19/25 ,  H04B1/707 ,  H04B7/005 ,  H04W52/34 ,  H04B1/69

Abstract: A mobile subscriber unit (MS) location method and system in a spread spectrum channel coding system uses a known spread spectrum location beacon channel (34) that is time division multiplexed with normal code division multiplexed channels (36). Each base station (12, 14 and 16) in a defined service area transmits the known time division multiplexed spread spectrum location beacon signal (34), such as a known location channel, as a spread spectrum location beacon signal at a same time interval. Mobile subscriber units (18) receive the spread spectrum location beacon signal (34) time division multiplexed with the normal CDMA channels (36) and determine their own location using location techniques such as trilateration. Preferably, all of a base station's transmit power is assigned to this special known location channel (34) during transmission.

公开(公告)号：BR9810855A

公开(公告)日：2000-07-25

申请号：BR9810855

申请日：1998-07-14

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D ,  ROZANSKI WALTER J

IPC: H04L27/30 ,  H04B7/06 ,  H04B7/10 ,  H04B7/26 ,  H04B15/00 ,  H04J11/00 ,  H04Q7/36 ,  H04K1/00

Abstract: Different orthogonal codes (Wx, Wy) are used to spread common pilot channels (PilotA) intended for transmission to a particular mobile station (106) within a coverage area (sector A) to implement forward link transmit diversity. By implementing separate, different orthogonal codes (Wx, Wy) for each pilot channel (PilotA), the pilot signals transmitted via antennas (218, 222) to a common coverage area (sector A) are orthogonal to one another and thus do not degrade system performance. Additionally, the use of different orthogonal codes (Wx, Wy) for each pilot channel (PilotA) allows the mobile station (106) to discern which pilot channel spread with a different orthogonal code includes corresponding traffic channel (TCH) information. This allows forward link transmit diversity to be enable/disabled based on conditions associated with the environment, the communications channel, etc. without a complete loss of information as seen by the mobile station (106).

公开(公告)号：BR9714595A

公开(公告)日：2000-05-16

申请号：BR9714595

申请日：1997-12-19

Applicant: MOTOROLA INC

Inventor： BRUCKERT EUGENE J ,  KOTZIN MICHAEL D ,  HUNG NELSON

IPC: H04W36/18 ,  H04W72/04 ,  H04K1/10

Abstract: In a communication system where frame boundaries for the discrete frames for different users may be offset relative to one another, assignment of a remote unit (125) to a particular frame offset occurs by a processor (321) determining a frame offset belonging to a group that is the least busy group of all possible groups. In addition, during handoff of the remote unit (125) from a serving base station (130) to a neighboring base station, the remote unit (125) is attempted to be kept within the same call group, however should the same call group of the neighboring base station be filled, the remote unit (125) is placed in a second call group that is one call group prior to the current call group.