[go: up one dir, main page]

WO1999067971A3 - Method and apparatus for estimating the channel quality in a time division multiple access based network - Google Patents

Method and apparatus for estimating the channel quality in a time division multiple access based network Download PDF

Info

Publication number
WO1999067971A3
WO1999067971A3 PCT/SE1999/000970 SE9900970W WO9967971A3 WO 1999067971 A3 WO1999067971 A3 WO 1999067971A3 SE 9900970 W SE9900970 W SE 9900970W WO 9967971 A3 WO9967971 A3 WO 9967971A3
Authority
WO
WIPO (PCT)
Prior art keywords
estimating
quality
channels
channel
multiple access
Prior art date
Application number
PCT/SE1999/000970
Other languages
French (fr)
Other versions
WO1999067971A2 (en
Inventor
Daniel Bringby
Patrik Karlsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to BR9911399-6A priority Critical patent/BR9911399A/en
Priority to CA002335594A priority patent/CA2335594A1/en
Priority to AU48107/99A priority patent/AU4810799A/en
Publication of WO1999067971A2 publication Critical patent/WO1999067971A2/en
Publication of WO1999067971A3 publication Critical patent/WO1999067971A3/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

A technique for estimating the quality of an unmeasureable channel in a time division multiple access radio telecommunication network is disclosed. In an embodiment of the invention, the estimate of the unmeasurable channel is based on samples from other time slots or channels on the same carrier frequency in the same cell. By way of example, a plurality of quality measurements, which may include the interference, bit error rate (BER), frame erasure rate (FER), and burst quality (BQ) are performed on associated channels of the same carrier frequency and cell as the unmeasurable channel. The quality is based on the suitable maximum value of the estimated values derived from the associated channels. The method is applicable to either uplink or downlink signal measuring techniques and provides an effective means for estimating intrafrequency channels that are closely correlated.
PCT/SE1999/000970 1998-06-22 1999-06-04 Method and apparatus for estimating the channel quality in a time division multiple access based network WO1999067971A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR9911399-6A BR9911399A (en) 1998-06-22 1999-06-04 Processes for calculating the quality and interference of an unmeasurable channel in a radio-telecommunications system for multiple access by time division, and, system for calculating the quality of an unmeasurable channel in a radio telecommunications network of multiple access by time division time
CA002335594A CA2335594A1 (en) 1998-06-22 1999-06-04 Method and apparatus for estimating the channel quality in a time division multiple access based network
AU48107/99A AU4810799A (en) 1998-06-22 1999-06-04 Method and apparatus for estimating the channel quality in time division multiple access based network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10097798A 1998-06-22 1998-06-22
US09/100,977 1998-06-22

Publications (2)

Publication Number Publication Date
WO1999067971A2 WO1999067971A2 (en) 1999-12-29
WO1999067971A3 true WO1999067971A3 (en) 2002-10-03

Family

ID=22282498

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/000970 WO1999067971A2 (en) 1998-06-22 1999-06-04 Method and apparatus for estimating the channel quality in a time division multiple access based network

Country Status (5)

Country Link
AR (1) AR018914A1 (en)
AU (1) AU4810799A (en)
BR (1) BR9911399A (en)
CA (1) CA2335594A1 (en)
WO (1) WO1999067971A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2938009B1 (en) * 2001-05-14 2019-05-01 InterDigital Technology Corporation Channel quality measurements for downlink resource allocation
GB2464289B (en) * 2008-10-08 2012-12-05 Samsung Electronics Co Ltd Estimating link qualities in multi-carrier systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458768A1 (en) * 1990-05-23 1991-11-27 Telefonaktiebolaget L M Ericsson A method for determining the transmission quality of a home traffic connection in a mobile radio system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458768A1 (en) * 1990-05-23 1991-11-27 Telefonaktiebolaget L M Ericsson A method for determining the transmission quality of a home traffic connection in a mobile radio system

Also Published As

Publication number Publication date
AU4810799A (en) 2000-01-10
AR018914A1 (en) 2001-12-12
CA2335594A1 (en) 1999-12-29
WO1999067971A2 (en) 1999-12-29
BR9911399A (en) 2001-09-18

Similar Documents

Publication Publication Date Title
KR100401219B1 (en) Weighted open loop power control in a time division duplex communication system
EP1540872B1 (en) Method and system for multi-cell interference reduction in a wireless communication system
EP1299956B1 (en) Code power measurement for dynamic channel allocation
US5323421A (en) Method and apparatus of estimating channel quality in a receiver
EP3309975B1 (en) Channel sounding techniques for a wireless communication system
KR100831136B1 (en) Method and apparatus for controlling transmission power in CDMA communication system
US8614979B2 (en) Techniques for high mobility communications
US9313678B2 (en) Method and apparatus for measuring interference in a telecommunications system
US8279971B2 (en) Determining a level of power reduction for a transmitter
AU2004310536B2 (en) Signal interference measurement
EP2028783A2 (en) Synchronous coherent orthogonal frequency division multiplexing system
US7564794B2 (en) Method and an apparatus for a waveform quality measurement
US20080232234A1 (en) Channel sounding techniques for a wireless communication system
KR101102411B1 (en) How to synchronize the synchronization device and receiver to the timing and carrier frequency of the communication system
KR20070093227A (en) Channel Estimation Apparatus and Method for Interference Cancellation in Mobile Communication Systems
WO1999043101A1 (en) Forward link power control in a cellular system using nt/i0 values
KR20020006581A (en) Transmission power control method and mobile communication system
KR101004661B1 (en) Method and system for interference evaluation and reduction in wireless communication system
US6987750B2 (en) Method and apparatus for evaluating a timeslot in a TDMA signal
KR100763529B1 (en) Power control method and apparatus in communication system using space-time transmission diversity
JPH11275035A (en) Mobile station communication device, base station communication device, and wireless communication system
WO1999067971A3 (en) Method and apparatus for estimating the channel quality in a time division multiple access based network
TWI243549B (en) Assigning uplink slots to optimize uplink power control gain in wireless communications
GB2353670A (en) Minimising interference in a cellular mobile telecommunications system
EP1205049A1 (en) Method of estimating inter-cell interference in a telecommunications system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWE Wipo information: entry into national phase

Ref document number: 48107/99

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 2335594

Country of ref document: CA

122 Ep: pct application non-entry in european phase
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG