[go: up one dir, main page]

WO2008107930A1 - Transmission power control method, and radio communication system - Google Patents

Transmission power control method, and radio communication system Download PDF

Info

Publication number
WO2008107930A1
WO2008107930A1 PCT/JP2007/000165 JP2007000165W WO2008107930A1 WO 2008107930 A1 WO2008107930 A1 WO 2008107930A1 JP 2007000165 W JP2007000165 W JP 2007000165W WO 2008107930 A1 WO2008107930 A1 WO 2008107930A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission power
ptx
communication system
control method
power control
Prior art date
Application number
PCT/JP2007/000165
Other languages
French (fr)
Japanese (ja)
Inventor
Dai Kimura
Hiroyuki Seki
Tsuyoshi Shimomura
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/000165 priority Critical patent/WO2008107930A1/en
Priority to JP2009502345A priority patent/JP5155995B2/en
Publication of WO2008107930A1 publication Critical patent/WO2008107930A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A mobile station (10) finds a path-loss (L0) from a received signal to a connecting base station (100) and a path-loss (L1) to the largest adjacent base station (200). The mobile station (10) computes two levels of transmission power (PTX_S, PTX_I) on the basis of the two pass-losses (L0, L1), respectively. The mobile station (10) determines the smaller transmission power out of the two levels of transmission power (PTX_S, PTX_I) as transmission power (PTX) to the connecting base station (100). Alternatively, the mobile station (10) determines the value after the addition to the two levels of transmission power (PTX_S, PTX_I) at a constant rate α (0<α<1) as the transmission power (PTX).
PCT/JP2007/000165 2007-03-02 2007-03-02 Transmission power control method, and radio communication system WO2008107930A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/000165 WO2008107930A1 (en) 2007-03-02 2007-03-02 Transmission power control method, and radio communication system
JP2009502345A JP5155995B2 (en) 2007-03-02 2007-03-02 Transmission power control method and radio communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000165 WO2008107930A1 (en) 2007-03-02 2007-03-02 Transmission power control method, and radio communication system

Publications (1)

Publication Number Publication Date
WO2008107930A1 true WO2008107930A1 (en) 2008-09-12

Family

ID=39737836

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000165 WO2008107930A1 (en) 2007-03-02 2007-03-02 Transmission power control method, and radio communication system

Country Status (2)

Country Link
JP (1) JP5155995B2 (en)
WO (1) WO2008107930A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011101178A (en) * 2009-11-05 2011-05-19 Kyocera Corp Radio base station and method of controlling communication
JP2013513324A (en) * 2009-12-08 2013-04-18 ホアウェイ・テクノロジーズ・カンパニー・リミテッド System and method for power control
CN112840709A (en) * 2018-10-23 2021-05-25 华为技术有限公司 Uplink power control system and method in a communication system with multi-access point coordination

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998048528A1 (en) * 1997-04-24 1998-10-29 Ntt Mobile Communications Network Inc. Mobile communication method and mobile communication system
JP2000216727A (en) * 1998-12-14 2000-08-04 Nokia Mobile Phones Ltd Method for deciding availability of service in radio communication network
JP2005318327A (en) * 2004-04-28 2005-11-10 Matsushita Electric Ind Co Ltd Communication terminal device and transmission power control method
JP2007502572A (en) * 2003-08-19 2007-02-08 エルジー エレクトロニクス インコーポレイティド NodeB scheduling method in mobile communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998048528A1 (en) * 1997-04-24 1998-10-29 Ntt Mobile Communications Network Inc. Mobile communication method and mobile communication system
JP2000216727A (en) * 1998-12-14 2000-08-04 Nokia Mobile Phones Ltd Method for deciding availability of service in radio communication network
JP2007502572A (en) * 2003-08-19 2007-02-08 エルジー エレクトロニクス インコーポレイティド NodeB scheduling method in mobile communication system
JP2005318327A (en) * 2004-04-28 2005-11-10 Matsushita Electric Ind Co Ltd Communication terminal device and transmission power control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011101178A (en) * 2009-11-05 2011-05-19 Kyocera Corp Radio base station and method of controlling communication
JP2013513324A (en) * 2009-12-08 2013-04-18 ホアウェイ・テクノロジーズ・カンパニー・リミテッド System and method for power control
US9031599B2 (en) 2009-12-08 2015-05-12 Futurewei Technologies, Inc. System and method for power control
US10334535B2 (en) 2009-12-08 2019-06-25 Huawei Technologies Co., Ltd. System and method for power control
CN112840709A (en) * 2018-10-23 2021-05-25 华为技术有限公司 Uplink power control system and method in a communication system with multi-access point coordination

Also Published As

Publication number Publication date
JP5155995B2 (en) 2013-03-06
JPWO2008107930A1 (en) 2010-06-03

Similar Documents

Publication Publication Date Title
WO2004073205A3 (en) Power control for reverse packet data channel in cdma systems
WO2011052965A3 (en) Dynamic uplink power control method and device in a wireless communications system
WO2009051412A3 (en) Method of controlling uplink power in wireless communication system
WO2010144238A3 (en) Femto-cell power control using idle-mode user equipment in a cellular communication system
WO2009001400A1 (en) Power control system in wireless communication
WO2012064100A3 (en) Method and terminal apparatus for transmitting a power status report in a wireless communication system
WO2010087623A2 (en) Method for controlling transmission power, and apparatus for same
WO2008136294A1 (en) User device, base station device, and communication control method in mobile communication system
WO2007103764A3 (en) Method and system of interrupting a transmitting subscriber in a wireless communications system
WO2007139680A3 (en) Controlling transmit power of picocell base units
WO2007024895A3 (en) Access point interference control and selection methods
WO2008078357A1 (en) Wireless communication method, base station, and user terminal
WO2006138570A3 (en) Serving base station selection in a wireless communication system
WO2008156314A3 (en) Effective system information reception method
WO2010087622A3 (en) Method for controlling signal transmission power and device for same
SG127744A1 (en) Mobile station, base station, communications system, and communication method
WO2007087483A3 (en) Power control in schedulable wireless communication terminal
WO2008084371A8 (en) Power control and channel reuse techniques for wireless relay networks
EP1811684A3 (en) Transmission power control technique and wireless communications system using the same
WO2006115623A3 (en) Method of power control in a wireless communication system
WO2009022825A3 (en) Effective reception method in wireless communication system providing mbms service
WO2013025014A3 (en) Apparatus and method for controlling uplink transmission power in wireless communication system
WO2009010906A3 (en) Link adaptation by channel bundling in a wireless communication system
TW200733599A (en) Transmit power control in a radio station
WO2005029878A3 (en) System and method of operation for network overlay geolocation system with repeaters

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07713547

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2009502345

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07713547

Country of ref document: EP

Kind code of ref document: A1