CA2413934A1 - S/n measuring circuit and method, transmitting electric power control apparatus and digital communicating system - Google Patents

S/n measuring circuit and method, transmitting electric power control apparatus and digital communicating system Download PDF

Info

Publication number
CA2413934A1
CA2413934A1 CA002413934A CA2413934A CA2413934A1 CA 2413934 A1 CA2413934 A1 CA 2413934A1 CA 002413934 A CA002413934 A CA 002413934A CA 2413934 A CA2413934 A CA 2413934A CA 2413934 A1 CA2413934 A1 CA 2413934A1
Authority
CA
Canada
Prior art keywords
electric power
transmitting electric
control apparatus
power control
measuring circuit
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
CA002413934A
Other languages
French (fr)
Other versions
CA2413934C (en
Inventor
Hironori Mizuguchi
Shousei Yoshida
Akihisa Ushirokawa
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.)
NEC Corp
Original Assignee
Nec Corporation
Hironori Mizuguchi
Shousei Yoshida
Akihisa Ushirokawa
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
Priority claimed from JP09186388A external-priority patent/JP3132427B2/en
Application filed by Nec Corporation, Hironori Mizuguchi, Shousei Yoshida, Akihisa Ushirokawa filed Critical Nec Corporation
Publication of CA2413934A1 publication Critical patent/CA2413934A1/en
Application granted granted Critical
Publication of CA2413934C publication Critical patent/CA2413934C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • Y02B60/50

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

In a transmitting electric power control apparatus, non-linear bias characteristic in S/N measurement is previously obtained by measurement, and a conversion table for realizing this reverse characteristic is created in an S/N measuring circuit 10, and when a measured S/N value is output from the dividing circuit 9, the table conversion circuit 1 receives this S/N value as an input and outputs a corrected S/N value from the above-described conversion table, whereby it is possible to provide the S/N
measurement with high accuracy, and this corrected and measured S/N is compared with a target S/N, and a demand for increasing and decreasing transmitting electric power is transmitted to a mobile station 53, and, in the mobile station 53, in accordance with the instruction from the base station 20, the transmitting electric power is determined and a coded information signal is transmitted.
CA002413934A 1997-07-11 1998-07-10 S/n measuring circuit and method, transmitting electric power control apparatus and digital communicating system Expired - Fee Related CA2413934C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9-186388 1997-07-11
JP09186388A JP3132427B2 (en) 1997-07-11 1997-07-11 S / N measurement circuit, transmission power control device, and digital communication system
CA 2243133 CA2243133C (en) 1997-07-11 1998-07-10 S/n measuring circuit and method, transmitting electric power control apparatus and digital communicating system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA 2243133 Division CA2243133C (en) 1997-07-11 1998-07-10 S/n measuring circuit and method, transmitting electric power control apparatus and digital communicating system

Publications (2)

Publication Number Publication Date
CA2413934A1 true CA2413934A1 (en) 1999-01-11
CA2413934C CA2413934C (en) 2005-08-30

Family

ID=25680370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002413934A Expired - Fee Related CA2413934C (en) 1997-07-11 1998-07-10 S/n measuring circuit and method, transmitting electric power control apparatus and digital communicating system

Country Status (1)

Country Link
CA (1) CA2413934C (en)

Also Published As

Publication number Publication date
CA2413934C (en) 2005-08-30

Similar Documents

Publication Publication Date Title
CA2243133A1 (en) S/n measuring circuit and method, transmitting electric power control apparatus and digital communicating system
CA2137460A1 (en) Method and Apparatus for Power Estimation in an Orthogonal Coded Communication System
WO2002086678A3 (en) Power management system and method
EP1107449A3 (en) Non-linear distortion compensation circuit, transmitter device to be employed in the same and mobile communication unit
CA2224271A1 (en) Method and instrument for measuring receiving sir and transmission power controller
WO1999014869A3 (en) Accurate open loop power control in a code-division multiple access communication system
MY118690A (en) Low power parallel correlator for measuring correlation between digital signal segments
EP1217861A4 (en) Communication terminal, base station device, and radio communication method
EP1835633A3 (en) System and method for generating signal waveforms in a CDMA cellular telephone system
WO1999018683A3 (en) Received signal strength determination methods and systems
WO2000064071A3 (en) Power control system and method for use with wireless communications system
ATE513372T1 (en) DELAY CONTROL CONTROL IN A DIGITAL RADIO TRANSMISSION SYSTEM
WO2004100396A8 (en) Method and arrangement for setting the transmission power of a mobile communication device
EP0455814A4 (en) Pulse transfer system of manual pulse generator
KR970004470A (en) Wireless transmitter
DK297588D0 (en) DEVICE AND PROCEDURE FOR DIGITAL CONVERSION OF THE OUTPUT ON A TWO-WIRE TRANSMITTER
CA2413934A1 (en) S/n measuring circuit and method, transmitting electric power control apparatus and digital communicating system
CA2281156A1 (en) Assembly for signal transfer between a receiving station and a transmitting station as well as for power supply of the transmitting station
DE69413605D1 (en) Transmitter circuit for a digital radio telephone
DK0685743T3 (en) Power measuring circuit with a mutually coupled transformer and an integration circuit
TW275164B (en) Precision current mirror circuit
AU2003269855A1 (en) Transmitter
JPS6412626A (en) Mobile communication system
SU1241477A1 (en) Device for digital transmission of audio signals
JPS5418209A (en) Ais signal receiving circuit

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed