CA2425549A1 - Adaptive power control for a spread-spectrum transmitter - Google Patents

Adaptive power control for a spread-spectrum transmitter Download PDF

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Publication number
CA2425549A1
CA2425549A1 CA002425549A CA2425549A CA2425549A1 CA 2425549 A1 CA2425549 A1 CA 2425549A1 CA 002425549 A CA002425549 A CA 002425549A CA 2425549 A CA2425549 A CA 2425549A CA 2425549 A1 CA2425549 A1 CA 2425549A1
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CA
Canada
Prior art keywords
spread
transmitter
spectrum
signal
power level
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002425549A
Other languages
French (fr)
Other versions
CA2425549C (en
Inventor
Donald L. Schilling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
InterDigital Technology Corp
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24462823&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2425549(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to CA2634337A priority Critical patent/CA2634337C/en
Publication of CA2425549A1 publication Critical patent/CA2425549A1/en
Application granted granted Critical
Publication of CA2425549C publication Critical patent/CA2425549C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/221—TPC being performed according to specific parameters taking into account previous information or commands using past power control commands
    • 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
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/225—Calculation of statistics, e.g. average, variance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/246—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter calculated in said terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers

Abstract

An apparatus for adaptive-power control of a spread--spectrum transmitter of a mobile station operating in a cellular-communications network using spread-spectrum modulation. A base station transmits a generic spread--spectrum signal and an APC-data signal. A mobile station has an acquisition circuit (101, 102, 103) for acquiring and decoding the generic spread-spectrum signal, a detector (104) for detecting a received power level of the generic spread-spectrum signal, a decoder (105) for decoding the APC-data signal as a threshold, a differential amplifier (106) for generating a comparison signal by comparing the received power level to the threshold, a transmitter (112) for transmitting a transmitter spread-spectrum signal, an antenna, and a variable-gain device (111) responsive to the comparison signal indicating an increase or decrease for adjusting a transmitter-power level of the transmitter spread--spectrum signal.
CA002425549A 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter Expired - Lifetime CA2425549C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2634337A CA2634337C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/614,816 US5093840A (en) 1990-11-16 1990-11-16 Adaptive power control for a spread spectrum transmitter
US07/614,816 1990-11-16
CA002310104A CA2310104C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002310104A Division CA2310104C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2634337A Division CA2634337C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter

Publications (2)

Publication Number Publication Date
CA2425549A1 true CA2425549A1 (en) 1992-05-17
CA2425549C CA2425549C (en) 2008-09-23

Family

ID=24462823

Family Applications (4)

Application Number Title Priority Date Filing Date
CA002091783A Expired - Lifetime CA2091783C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread spectrum transmitter
CA002425549A Expired - Lifetime CA2425549C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter
CA2634337A Expired - Lifetime CA2634337C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter
CA002310104A Expired - Lifetime CA2310104C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002091783A Expired - Lifetime CA2091783C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread spectrum transmitter

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA2634337A Expired - Lifetime CA2634337C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter
CA002310104A Expired - Lifetime CA2310104C (en) 1990-11-16 1991-11-14 Adaptive power control for a spread-spectrum transmitter

Country Status (8)

Country Link
US (1) US5093840A (en)
EP (4) EP1523110B1 (en)
CA (4) CA2091783C (en)
DE (3) DE69133619D1 (en)
ES (3) ES2137911T3 (en)
HK (2) HK1015570A1 (en)
SG (1) SG43873A1 (en)
WO (1) WO1992009156A1 (en)

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Also Published As

Publication number Publication date
EP0515610A1 (en) 1992-12-02
CA2091783C (en) 2000-07-25
HK1074931A1 (en) 2005-11-25
EP1926227A2 (en) 2008-05-28
EP0855807A3 (en) 1999-09-01
ES2137911T1 (en) 2000-01-01
EP1523110A2 (en) 2005-04-13
EP0855807B1 (en) 2005-06-01
EP1523110B1 (en) 2009-06-24
DE69133467D1 (en) 2005-07-07
CA2425549C (en) 2008-09-23
WO1992009156A1 (en) 1992-05-29
CA2634337C (en) 2010-11-02
EP0515610B1 (en) 1998-08-05
HK1015570A1 (en) 1999-10-15
EP0855807A2 (en) 1998-07-29
EP0515610A4 (en) 1993-06-09
CA2310104C (en) 2003-07-15
CA2091783A1 (en) 1992-05-17
ES2121840T3 (en) 1998-12-16
SG43873A1 (en) 1997-11-14
EP1926227A3 (en) 2010-03-03
CA2634337A1 (en) 1992-05-17
DE69133467T2 (en) 2006-04-27
ES2329048T3 (en) 2009-11-20
EP1523110A3 (en) 2006-01-18
CA2310104A1 (en) 1992-05-17
DE69129936D1 (en) 1998-09-10
DE69133619D1 (en) 2009-08-06
US5093840A (en) 1992-03-03
ES2137911T3 (en) 2005-11-01
DE69129936T2 (en) 1999-04-22

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