CA2158577A1 - Reverse Link, Transmit Power Correction and Limitation in a Radiotelephone System - Google Patents

Reverse Link, Transmit Power Correction and Limitation in a Radiotelephone System

Info

Publication number
CA2158577A1
CA2158577A1 CA2158577A CA2158577A CA2158577A1 CA 2158577 A1 CA2158577 A1 CA 2158577A1 CA 2158577 A CA2158577 A CA 2158577A CA 2158577 A CA2158577 A CA 2158577A CA 2158577 A1 CA2158577 A1 CA 2158577A1
Authority
CA
Canada
Prior art keywords
radiotelephone
limitation
transmit power
reverse link
gain
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
CA2158577A
Other languages
French (fr)
Other versions
CA2158577C (en
Inventor
Ana L. Weiland
Richard K. Kornfeld
Richard J. Kerr
John E. Maloney
Nathaniel B. Wilson
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.)
Qualcomm Inc
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=22752727&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2158577(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 CA002275156A priority Critical patent/CA2275156C/en
Publication of CA2158577A1 publication Critical patent/CA2158577A1/en
Application granted granted Critical
Publication of CA2158577C publication Critical patent/CA2158577C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • 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
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • 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

The process and apparatus of the present invention limits the output power of a radiotelephone, operating in a cellular system in the preferred embodiment.
This ensures the transmitted sidebands and synthesizer phase noise remains within a certain specification. This is accomplished by power detection and a correction accumulator that together generate a gain control signal by limiting the gain adjustment to a maximum value, even when the cell site communicating with the radiotelephone is sending power turn-up commands to the radiotelephone. This process includes dynamically correcting the output level of the transmitter due to gain variations in the transmitter stages or gain control elements.
CA002158577A 1994-02-28 1995-02-17 Reverse link, transmit power correction and limitation in a radiotelephone system Expired - Lifetime CA2158577C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002275156A CA2275156C (en) 1994-02-28 1995-02-17 Reverse link, transmit power correction and limitation in a radiotelephone system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/203,151 US5452473A (en) 1994-02-28 1994-02-28 Reverse link, transmit power correction and limitation in a radiotelephone system
US203,151 1994-02-28
PCT/US1995/002125 WO1995023460A1 (en) 1994-02-28 1995-02-17 Method and apparatus for correction and limitation of transmitter power on the reverse link of a mobile radio telephone system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002275156A Division CA2275156C (en) 1994-02-28 1995-02-17 Reverse link, transmit power correction and limitation in a radiotelephone system

Publications (2)

Publication Number Publication Date
CA2158577A1 true CA2158577A1 (en) 1995-08-31
CA2158577C CA2158577C (en) 2000-05-16

Family

ID=22752727

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002158577A Expired - Lifetime CA2158577C (en) 1994-02-28 1995-02-17 Reverse link, transmit power correction and limitation in a radiotelephone system

Country Status (16)

Country Link
US (3) US5452473A (en)
EP (1) EP0695482B1 (en)
JP (1) JP3452930B2 (en)
KR (1) KR100208456B1 (en)
CN (1) CN1078022C (en)
AT (1) ATE200946T1 (en)
AU (1) AU674475B2 (en)
BR (1) BR9505674A (en)
CA (1) CA2158577C (en)
DE (1) DE69520812T2 (en)
ES (1) ES2158088T3 (en)
FI (1) FI112564B (en)
HK (1) HK1011124A1 (en)
MX (1) MX9504538A (en)
RU (1) RU2134018C1 (en)
WO (1) WO1995023460A1 (en)

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