CA2537143A1 - Method and system for quality-based power control in cellular communications systems - Google Patents

Method and system for quality-based power control in cellular communications systems Download PDF

Info

Publication number
CA2537143A1
CA2537143A1 CA002537143A CA2537143A CA2537143A1 CA 2537143 A1 CA2537143 A1 CA 2537143A1 CA 002537143 A CA002537143 A CA 002537143A CA 2537143 A CA2537143 A CA 2537143A CA 2537143 A1 CA2537143 A1 CA 2537143A1
Authority
CA
Canada
Prior art keywords
quality
power control
based power
cellular communications
network
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
CA002537143A
Other languages
French (fr)
Other versions
CA2537143C (en
Inventor
Fredrik Gunnarsson
Fredrik Gustafsson
Jonas Blom
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.)
Telefonaktiebolaget LM Ericsson AB
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
Priority claimed from US09/031,635 external-priority patent/US6449462B1/en
Application filed by Individual filed Critical Individual
Publication of CA2537143A1 publication Critical patent/CA2537143A1/en
Application granted granted Critical
Publication of CA2537143C publication Critical patent/CA2537143C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

A method and system for quality-based transmission power control in a cellular communications system are disclosed, whereby a network operator can specify the transmission quality requirements using a measurement that better reflects the actual quality perceived by the users.
All transmitter'power levels in the network can be controlled by identical power regulators, each of which can adapt to individual traffic situations in order to achieve the specified quality. For example, in a GSM frequency-hopping network, the FER together with the parameters estimated from the current traffic situation, are mapped onto a target C/I, which in turn, the power control algorithm strives to achieve. Consequently, the power regulators can adapt to the traffic situation experienced by each receiver.

Claims (5)

1. A method for performing quality-based power control in a mobile communications system, comprising the steps of:
identifying at least one time delay;
determining if there are physical constraints involved in performing the quality-based power control;
if there are physical constraints involved in performing the quality-based power control, utilize at least one describing function to predict limits for oscillations in a local loop;
and if there are no physical constraints involved in performing the quality-based power control, determine locations of local loop poles that keep a power controller operating within a stability region.
2. The method of claim 1, wherein said at least one time delay is equal to zero.
3. The method of claim 1 or 2, wherein said at least one describing function comprises at least one discrete time describing function.
4. The method of claim 1, 2 or 3, wherein it is determined that a set of controller parameters imply that said power controller is stable.
5. The method of any one of claims 1 to 4, wherein said limits comprise limits on power controller parameters.
CA2537143A 1998-02-27 1999-02-23 Method and system for quality-based power control in cellular communications systems Expired - Lifetime CA2537143C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/031,635 US6449462B1 (en) 1998-02-27 1998-02-27 Method and system for quality-based power control in cellular communications systems
US09/031,635 1998-02-27
CA002322224A CA2322224C (en) 1998-02-27 1999-02-23 Method and system for quality-based power control in cellular communications systems

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002322224A Division CA2322224C (en) 1998-02-27 1999-02-23 Method and system for quality-based power control in cellular communications systems

Publications (2)

Publication Number Publication Date
CA2537143A1 true CA2537143A1 (en) 1999-09-02
CA2537143C CA2537143C (en) 2010-06-22

Family

ID=36141792

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2537143A Expired - Lifetime CA2537143C (en) 1998-02-27 1999-02-23 Method and system for quality-based power control in cellular communications systems

Country Status (1)

Country Link
CA (1) CA2537143C (en)

Also Published As

Publication number Publication date
CA2537143C (en) 2010-06-22

Similar Documents

Publication Publication Date Title
WO1999044305A3 (en) Method and system for quality-based power control in cellular communications systems
CA2072972C (en) Method of controlling output power in a mobile radio communication system
EP0762668A3 (en) Method for controlling transmission power of a radio transmitter
CN1258298C (en) Method and apparatus for geographic based control in communication system
US6845246B1 (en) Location based power control for mobile communications systems
MY118575A (en) Automatic power control in uncoordinated frequency-hopping radio systems
US20110055363A1 (en) Wireless communication terminal and communication system selection method
WO1996031013A1 (en) System and method for setting output power parameters in a cellular mobile telecommunications system
WO1999055070A3 (en) Management of functionality in a consumer electronics system
US7477912B2 (en) Method for improving performances of a mobile radiocommunication system using a power control algorithm
FR2761838B1 (en) METHOD FOR CONTROLLING THE TRANSMISSION POWER OF TERMINALS IN A CELLULAR NETWORK OF CDMA TYPE, BASE STATION AND BASE STATION CONTROLLER USING THE SAME
CA2387167A1 (en) Method and arrangement for controlling transmission power and a network element
CA2537143A1 (en) Method and system for quality-based power control in cellular communications systems
US7986956B2 (en) Supporting mobile voice clients in a WLAN
KR101028265B1 (en) Method for estimating real time subscriber density and method for generating optimization data of antenna using the same in wireless communication system
JP2001298409A (en) Method for operating cellular communication system
KR101023087B1 (en) Method for controlling transmission power in indoor station
CN100518003C (en) Outer-loop power control method
EP1037483A1 (en) A method for dynamically choosing a best parameter value for a power control algorithm in a mobile radiocommunication system
CN112020128A (en) Terminal and transmission power control method thereof
RU2011106404A (en) METHOD AND DEVICE FOR CORRECTIONS FOR POWER MANAGEMENT BASED ON DELTA VALUE IN WIRELESS COMMUNICATION SYSTEMS

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20190225