MXPA99001323A - Improvements in ultrafast time hopping cdma-rf. - Google Patents

Improvements in ultrafast time hopping cdma-rf.

Info

Publication number
MXPA99001323A
MXPA99001323A MXPA99001323A MX9901323A MXPA99001323A MX PA99001323 A MXPA99001323 A MX PA99001323A MX PA99001323 A MXPA99001323 A MX PA99001323A MX 9901323 A MX9901323 A MX 9901323A MX PA99001323 A MXPA99001323 A MX PA99001323A
Authority
MX
Mexico
Prior art keywords
time
pulse
packet
division
access
Prior art date
Application number
MXPA99001323A
Other languages
Spanish (es)
Inventor
Terrace W Barrett
Original Assignee
Terrace W Barrett
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Terrace W Barrett filed Critical Terrace W Barrett
Priority claimed from PCT/US1997/003182 external-priority patent/WO1998039882A1/en
Publication of MXPA99001323A publication Critical patent/MXPA99001323A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0074—Code shifting or hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/71632—Signal aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/2634—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for channel frequency control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0003—Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/71635—Transmitter aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/719—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B2001/6908—Spread spectrum techniques using time hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/12—Generation of orthogonal codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/005—Optical Code Multiplex

Abstract

Ultrashort pulse time hopping code-division-multiple-access (CDMA) and time-division-multiple-access (TDMA) RF, IR, and optical communications systems (20, 30) in the time-frequency domain (60) comprise a transmitter (20) including a short duration pulse/packet generator (40) for generating a short duration pulse/packet in the femtosecond to microsecond range and a controller (14) for controlling the generator (40), code connected to the controller (14) for varying the time position of each short pulse/packet in frames (90) of pulses/packets (100) in orthogonal superframes (200) of ultrafast time hopping code and time division multiple access format precise oscillator-clock (10) for controlling such timing, encoding modems for transforming intelligence into pulse/packet position modulation form, and antenna/amplifier system (70). Orthogonal codes with temporal coding of the sequence of ultrafast pulses/packets constituting the carrier for transmission by the antenna system (70).
MXPA99001323A 1997-03-07 1997-03-07 Improvements in ultrafast time hopping cdma-rf. MXPA99001323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1997/003182 WO1998039882A1 (en) 1994-07-29 1997-03-07 Improvements in ultrafast time hopping cdma-rf

Publications (1)

Publication Number Publication Date
MXPA99001323A true MXPA99001323A (en) 2006-02-10

Family

ID=22260450

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA99001323A MXPA99001323A (en) 1997-03-07 1997-03-07 Improvements in ultrafast time hopping cdma-rf.

Country Status (5)

Country Link
EP (1) EP0966818A4 (en)
JP (1) JP2002500832A (en)
AU (1) AU731763B2 (en)
CA (1) CA2262955A1 (en)
MX (1) MXPA99001323A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103329462B (en) * 2011-01-22 2015-03-04 维尔塞特公司 Frame formatting for high rate optical communications

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3728632A (en) * 1971-03-12 1973-04-17 Sperry Rand Corp Transmission and reception system for generating and receiving base-band pulse duration pulse signals without distortion for short base-band communication system
US5268933A (en) * 1991-09-27 1993-12-07 Motorola, Inc. Data packet alignment in a communication system
US5377225A (en) * 1993-10-19 1994-12-27 Hughes Aircraft Company Multiple-access noise rejection filter for a DS-CDMA system
US5677927A (en) * 1994-09-20 1997-10-14 Pulson Communications Corporation Ultrawide-band communication system and method

Also Published As

Publication number Publication date
EP0966818A4 (en) 2002-10-09
AU731763B2 (en) 2001-04-05
JP2002500832A (en) 2002-01-08
EP0966818A1 (en) 1999-12-29
AU3472597A (en) 1998-09-22
CA2262955A1 (en) 1998-09-11

Similar Documents

Publication Publication Date Title
WO2001022672A8 (en) Pulse transmission transceiver architecture for low power communications
WO1997008854A3 (en) Time division duplex repeater for use in a cdma system
EP1827050A3 (en) Methods and apparatuses for reverse link supplemental channel architecture for a wireless communication system
GB8830200D0 (en) Power economising in multiple user radio systems
WO2002033847A3 (en) Systems and methods for wirelessly communicating time division multiple access (tdma) data using adaptive multiplexing and coding
AU2001261070A1 (en) Downlink power control for multiple downlink time slots in tdd communication systems
CA2439697A1 (en) Interference suppression methods for 802.11
WO1999007085A3 (en) Method and radio station for transmitting data
MX9603336A (en) A high-data-rate wireless local-area network.
DK2058994T3 (en) Apparatus and method for reducing collision of messages between mobile stations simultaneously using a base station in a cellular CDMA communication system
ATE492074T1 (en) SWITCHED TRANSMISSION IN CONTROL HOLD STATE IN A CDMA COMMUNICATIONS SYSTEM
CA2275406A1 (en) Method for acquisition and synchronization of terminals in a satellite/wireless tdma system
CA2346618A1 (en) Method for avoiding interference in a digital communication system
BR0311241A (en) A method and apparatus for facilitating communication in the radio communication system providing data communications at multiple data rates, and a method for facilitating detection of data received at the receiving station of the transmitting station.
EP1408620B8 (en) Transmission method and transmitter for an ultra-wide bandwidth telecommunication system
CA2413954A1 (en) A method of controlling initial power ramp-up in cdma systems by using short codes
CA2319811A1 (en) Device and method for spreading channels in mobile communication system
IL136808A0 (en) Concatenated codes for spread spectrum communication
AU5712998A (en) Collision avoidance in a half-duplex communication system
ATE392053T1 (en) SYSTEM AND METHOD FOR USING UNUSED CAPACITY IN THE DATA FIELD OF A SPECIAL BURST
GB2349318A (en) Pulse shaping according to modulation scheme
MXPA99001323A (en) Improvements in ultrafast time hopping cdma-rf.
GB2337432A (en) Pulse position modulation communications protocol
ATE262267T1 (en) METHOD FOR CONTROLLING A SOURCE OF IONIZING RADIATIONS AND SYSTEM FOR IMPLEMENTING THE METHOD
EP0984578A4 (en) Comb-like spectrum communication method of complementary series repetition modulation type