公开(公告)号：AU697734B2

公开(公告)日：1998-10-15

申请号：AU5432396

申请日：1996-03-19

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  BAYLEY GWAIN ,  TIEDEMANN EDWARD G JR ,  GILHOUSEN KLEIN S

IPC: H04W36/14 ,  H04Q7/38

公开(公告)号：MX9801621A

公开(公告)日：1998-08-30

申请号：MX9801621

申请日：1998-02-27

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  DEAN RICHARD F ,  ANTONIO FRANKLIN P

IPC: H04L5/16 ,  H04B7/005 ,  H04B7/15 ,  H04B7/26 ,  H04J3/08 ,  H04W16/26 ,  H04W52/40 ,  H04W52/46

Abstract: Un método y aparato para repetir en duplex por division de tiempo (TDD) una señal de espectro difundido, comprendida dicha señal de espectro difundido de una serie de símbolos de codigo modulados con una secuencia de pseudoruido (PN). La repetidora de TDD recibe de manera intermitente la señal de espectro difundido en una ubicacion remota proveniente de una fuente que suministra la señal de espectro difundido. La repetidora de TDD amplifica y retarda la señal de espectro difundido recibida mediante una cantidad predeterminada. La repetidora de TDD transmite de manera intermitente la señal de espectro difundido recibida, amplificada, retardada, de tal manera que el TDD no reciba la señal de espectro difundido cuando se encuentra transmitiendo la energía de señal.

公开(公告)号：HK1001447A1

公开(公告)日：1998-06-19

申请号：HK98100401

申请日：1998-01-16

Applicant: QUALCOMM INC

Inventor： LEVIN JEFFREY A ,  EASTON KENNETH D ,  HINDERLING JURG ,  BROCK MICHAEL P ,  WEAVER LINDSAY A JR

IPC: H04J13/04 ,  H04B7/005 ,  H04B7/204 ,  H04B7/216 ,  H04B7/26 ,  H04W88/08 ,  H04B ,  H04J ,  H04Q

公开(公告)号：AU686686B2

公开(公告)日：1998-02-12

申请号：AU8096494

申请日：1994-10-28

Applicant: QUALCOMM INC

Inventor： GILHOUSEN KLEIN S ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR

IPC: H04B7/005 ,  H04B7/04 ,  H04B7/216 ,  H04B7/26 ,  H04W16/24 ,  H04W36/06 ,  H04W36/18 ,  H04W52/00 ,  H04W52/14 ,  H04W52/40 ,  H04Q7/38

Abstract: A method and apparatus providing softer handoff of a mobile unit (90) between sectors (50, 70, and 80) of a common base station (60). A sectorized base station (60) comprises a set of demodulation elements (240A - 204N). Each demodulation element (240A - 204N) may be assigned to a signal from one of a plurality of sectors. The output of the demodulators (240A - 204N) are combined before the decoding process independent of the sector from which the data originated. This configuration provides improved output data reliability, more stable power control, and more efficient use of resources at the base station.

公开(公告)号：AU685869B2

公开(公告)日：1998-01-29

申请号：AU8096394

申请日：1994-10-28

Applicant: QUALCOMM INC

Inventor： BLAKENEY ROBERT D II ,  WEAVER LINDSAY A JR ,  ZIV NOAM A ,  WILLIAMSON PAUL T ,  PADOVANI ROBERTO

IPC: H04B1/7087 ,  H04B1/7117 ,  H04B7/08 ,  H04B7/26 ,  H04J13/00 ,  H04B1/16

Abstract: In a receiver having a plurality of demodulation elements, a method of assigning the plurality of demodulation element so a set of available signals. A first method emphasizes diversity of transmitting devices so that power control is optimal. A second method emphasizes the maximum signal strength available to produce aggregate maximum signal strength. Both methods control the number of reassignments so that excessive data is not lost during the reassignment process. The apparatus comprises the plurality of demodulation elements, at least one searcher element, and a controller.

公开(公告)号：CA2256435A1

公开(公告)日：1997-11-27

申请号：CA2256435

申请日：1997-05-22

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  WHITE KATHERINE W

IPC: H04W16/32 ,  H04W36/14 ,  H04Q7/36

Abstract: In a communications network, a remote unit (125) communicates with another user (30) via at least one base station (B1A). The network has a plurality of base stations (B1A-B1E) controlled by a mobile switching center (MSC-I). Each base station of the plurality of base stations (B1A-B1E) transmits an identifying pilot signal. Defining an area in which communication between a set of the base stations and the remote unit (125) is forbidden, an auxiliary antenna (130) transmits a silent region identifying pilot signal. The remote unit (125) measures a signal strength of a set of identifying pilot signals corresponding to a neighbor set of base stations (B2A-B2E) and measures a signal strength of the silent region identifying pilot signal. The remote unit (125) sends a pilot strength measurement report to the mobile switching center (MSC-I) via a first base station (B1A) with which the remote unit (125) has established communication. A handoff of the established communication between the remote unit (125) and the first base station (B1A) is initiated if the pilot strength measurement report comprises an entry corresponding to the silent region identifying pilot signal.

公开(公告)号：AU2117497A

公开(公告)日：1997-08-28

申请号：AU2117497

申请日：1997-02-06

Applicant: QUALCOMM INC

Inventor： DEAN RICHARD F ,  WEAVER LINDSAY A JR ,  WHEATLEY CHARLES E III

IPC: H04W52/04 ,  H04N7/173 ,  H04W88/08 ,  H04Q7/36 ,  H04Q7/30

Abstract: The present invention is a method and apparatus for integrating a personal communication system with a cable television plant. A set of radio antenna devices (RAD) are connected to the cable plant. The RADs provide frequency conversion and power control of signal received from the cable plant for wireless transmission to the remote units. The RADs also provide power control and frequency conversion of wireless signals received from the remote units for transmission by the RADs onto the cable plant. In addition to the functions of standard base stations and centralized controller, the CATV base station must also compensate for gain variations in the cable plant. The downstream power control is regulated by a RAD reference signal which can be hidden within the CDMA signal for maximum efficiency. The upstream power control is regulated by an upstream gain reference signal which is individually transmitted by each RAD on the upstream link. The architecture of the present invention lends itself to a great deal of flexibility. Each RAD can operate as either an element of a distributed antenna or a base station sector unto itself. The function of each RAD as distributed antenna or as sector can be remotely programmed from the headend processor. Thus the capacity density of the system can be changed to accommodate the changing traffic density. The flexibility also is important at system deployment. When the system is deploy, the entire system may feed only one sector at the base station thus reducing the start-up cost of implementing a system. As system traffic increases, more resources can simply be added at the headend to provide more capacity.

公开(公告)号：AU677578B2

公开(公告)日：1997-05-01

申请号：AU3790793

申请日：1993-03-04

Applicant: QUALCOMM INC

Inventor： TIEDEMANN EDWARD G JR ,  WEAVER LINDSAY A JR ,  PADOVANI ROBERTO

IPC: H04B1/707 ,  H04B1/7103 ,  H04B7/26 ,  H04J13/00 ,  H04J13/10 ,  H04J13/16 ,  H04L1/16 ,  H04L12/28 ,  H04L12/403 ,  H04L12/413 ,  H04L27/30 ,  H04W28/04 ,  H04W52/48 ,  H04W52/50 ,  H04W74/00 ,  H04W74/08 ,  H04Q7/00

Abstract: Collisions between messages simultaneously transmitted by multiple spread spectrum transmitters are reduced by distributing the transmissions over the available resources of the receiver. Each mobile station uses one or more randomization methods to distribute its transmissions. Each mobile station includes a microprocessor (100); an encoder (140); a timing generator (136); a PN long code sequence generator (146); and XOR gate (152). The system is used in a CDMA mobile telephone system.

公开(公告)号：BR9305758A

公开(公告)日：1997-01-28

申请号：BR9305758

申请日：1993-01-19

Applicant: QUALCOMM INC

Inventor： PADOVANI ROBERTO ,  TIEDEMANN EDWARD G JR ,  WEAVER LINDSAY A JR ,  BUTLER BRIAN K

IPC: H04L27/20 ,  C02F5/10 ,  C08L33/02 ,  C08L35/00 ,  C08L51/02 ,  C08L77/04 ,  C11D3/37 ,  H04B7/00 ,  H04J3/16 ,  H04J3/22 ,  H04J3/24 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04L20060101 ,  H04L1/00 ,  H04L1/08 ,  H04L12/00 ,  H04L27/30 ,  H04L29/06 ,  H04Q7/38

Abstract: The invention relates to a communication system in which transmission takes place according to a format which permits different types of data to be combined and transmitted within a single transmission. The novel feature is that the communication system transmits variable length frames of data in packets, and that a data combining and transmission sub-system (14, 16, 18, 20) is provided so that when a frame of data does not require a complete packet for transmission, the data combining sub-system combines the frame of data with additional data to provide a complete packet. The data combining sub-system comprises input means for receiving the frame of data and the additional data and for combining the frame of data and the additional data to provide a complete packet responsive to a control signal, and control means for providing the control signal.

公开(公告)号：AU6265296A

公开(公告)日：1997-01-09

申请号：AU6265296

申请日：1996-06-07

Applicant: QUALCOMM INC

Inventor： BROCK MICHAEL P ,  KHATIBI FARROKH ,  ROBBINS BARRY R ,  WEAVER LINDSAY A JR

IPC: H04L12/66 ,  H04Q7/24 ,  H04L12/00

Abstract: A fast and efficient packet transmission system and method for transmitting and routing packets through a digital communications network (101, 102, 103, 104, 105 and 106) which utilizes both variable length packets and fixed length packets, or cells, for achieving maximum efficiency and minimum delay in the digital communications network. Network efficiency is maximized by using variable length packets to transmit information across transmission lines (102) and network speed is maximized by using cells to route information to their intended destinations.