CA2205714A1 - Scheme for controlling transmission powers during soft handover in a cdma mobile communication system - Google Patents

Scheme for controlling transmission powers during soft handover in a cdma mobile communication system

Info

Publication number
CA2205714A1
CA2205714A1 CA2205714A CA2205714A CA2205714A1 CA 2205714 A1 CA2205714 A1 CA 2205714A1 CA 2205714 A CA2205714 A CA 2205714A CA 2205714 A CA2205714 A CA 2205714A CA 2205714 A1 CA2205714 A1 CA 2205714A1
Authority
CA
Canada
Prior art keywords
scheme
communication system
mobile communication
prescribed
soft handover
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
CA2205714A
Other languages
French (fr)
Other versions
CA2205714C (en
Inventor
Takehiro Nakamura
Kouji Ohno
Etsuhiro Nakano
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.)
NTT Docomo Inc
Original Assignee
NTT Mobile Communications Networks Inc
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 NTT Mobile Communications Networks Inc filed Critical NTT Mobile Communications Networks Inc
Publication of CA2205714A1 publication Critical patent/CA2205714A1/en
Application granted granted Critical
Publication of CA2205714C publication Critical patent/CA2205714C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04W52/38—TPC being performed in particular situations
    • H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection

Abstract

A scheme for controlling transmission powers during a soft handover in a CDMA mobile communication system, in which the receiving quality can always satisfy the reference quality even when a relationship between the receiving qualities at the base stations is reversed within the selective combination interval. In this transmission power control scheme, one radio channel among a plurality of radio channels is selected as a reference radio channel at the prescribed selective combination interval, and then a transmission power control is carried out at a prescribed transmission power control interval so that a receiving quality of the reference radio channel satisfies a prescribed reference quality, while not switching the reference radio channel within the prescribed selective combination interval.
CA002205714A 1996-05-22 1997-05-21 Scheme for controlling transmission powers during soft handover in a cdma mobile communication system Expired - Fee Related CA2205714C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12738396A JP3352593B2 (en) 1996-05-22 1996-05-22 Mobile communication system and transmission power control method during soft handover in mobile communication system
JPP8-127383 1996-05-22

Publications (2)

Publication Number Publication Date
CA2205714A1 true CA2205714A1 (en) 1997-11-22
CA2205714C CA2205714C (en) 2000-08-29

Family

ID=14958640

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002205714A Expired - Fee Related CA2205714C (en) 1996-05-22 1997-05-21 Scheme for controlling transmission powers during soft handover in a cdma mobile communication system

Country Status (7)

Country Link
US (1) US5878350A (en)
EP (1) EP0809365B1 (en)
JP (1) JP3352593B2 (en)
KR (1) KR100270454B1 (en)
CN (1) CN1149862C (en)
CA (1) CA2205714C (en)
DE (1) DE69700858T2 (en)

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Also Published As

Publication number Publication date
DE69700858T2 (en) 2000-04-20
DE69700858D1 (en) 2000-01-05
CN1166760A (en) 1997-12-03
CA2205714C (en) 2000-08-29
KR100270454B1 (en) 2000-11-01
EP0809365A1 (en) 1997-11-26
JPH09312871A (en) 1997-12-02
CN1149862C (en) 2004-05-12
EP0809365B1 (en) 1999-12-01
US5878350A (en) 1999-03-02
KR970078068A (en) 1997-12-12
JP3352593B2 (en) 2002-12-03

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Effective date: 20090521