WO2008084540A1 - Radio communication apparatus and radio communication method - Google Patents

Radio communication apparatus and radio communication method Download PDF

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Publication number
WO2008084540A1
WO2008084540A1 PCT/JP2007/050237 JP2007050237W WO2008084540A1 WO 2008084540 A1 WO2008084540 A1 WO 2008084540A1 JP 2007050237 W JP2007050237 W JP 2007050237W WO 2008084540 A1 WO2008084540 A1 WO 2008084540A1
Authority
WO
WIPO (PCT)
Prior art keywords
communication
stas
sdma
basis
transmission line
Prior art date
Application number
PCT/JP2007/050237
Other languages
French (fr)
Japanese (ja)
Inventor
Shinji Murai
Takashi Yano
Masaaki Shida
Shigenori Hayase
Keisuke Yamamoto
Original Assignee
Hitachi, Ltd.
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 Hitachi, Ltd. filed Critical Hitachi, Ltd.
Priority to JP2008552981A priority Critical patent/JP4856195B2/en
Priority to PCT/JP2007/050237 priority patent/WO2008084540A1/en
Publication of WO2008084540A1 publication Critical patent/WO2008084540A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Landscapes

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

Abstract

In a radio communication system in which an AP (Access Point: base station) performs communication with STAs (STAtions: terminals) by the SDMA, the AP acquires radio transmission line information from the STAs and corrects the radio transmission line information on the basis of the value of the quantization noise power or thermal noise power of each of the STAs of SDMA groups. The AP then determines communication capacity and communication time to be assigned to each of the STAs in the SDMA groups on the basis of the corrected radio transmission line information and request information from the STAs and performs the communication with each of the STAs of the SDMA groups on the basis of the determined communication capacity and communication time. Additionally, the AP evaluates the communication quality of the SDMA groups and excludes an SDMA group having inferior communication quality from communication candidates. This prevents the deterioration of communication caused by a quantization error and further reduces the amount of an operation during the communication.
PCT/JP2007/050237 2007-01-11 2007-01-11 Radio communication apparatus and radio communication method WO2008084540A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008552981A JP4856195B2 (en) 2007-01-11 2007-01-11 Wireless communication apparatus and wireless communication method
PCT/JP2007/050237 WO2008084540A1 (en) 2007-01-11 2007-01-11 Radio communication apparatus and radio communication method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/050237 WO2008084540A1 (en) 2007-01-11 2007-01-11 Radio communication apparatus and radio communication method

Publications (1)

Publication Number Publication Date
WO2008084540A1 true WO2008084540A1 (en) 2008-07-17

Family

ID=39608443

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/050237 WO2008084540A1 (en) 2007-01-11 2007-01-11 Radio communication apparatus and radio communication method

Country Status (2)

Country Link
JP (1) JP4856195B2 (en)
WO (1) WO2008084540A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012511860A (en) * 2008-12-12 2012-05-24 エルジー エレクトロニクス インコーポレイティド Spatial division multiple access for wireless LAN and channel estimation for this
JP5149971B2 (en) * 2008-12-09 2013-02-20 株式会社日立製作所 Wireless communication system and wireless communication method
JP2014161070A (en) * 2009-12-23 2014-09-04 Intel Corp Device, system and method of simultaneously communicating with group of wireless communication devices
US9173191B2 (en) 2009-12-20 2015-10-27 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005033335A (en) * 2003-07-08 2005-02-03 Ntt Docomo Inc Multiple input multiple output propagation path signal transmitting apparatus and receiving station
JP2006109255A (en) * 2004-10-07 2006-04-20 Matsushita Electric Ind Co Ltd Multi-antenna fully duplex radio equipment, and communication method thereof
JP2007089144A (en) * 2005-08-24 2007-04-05 Matsushita Electric Ind Co Ltd Mimo-ofdm transmitter and mimo-ofdm transmitting method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005033335A (en) * 2003-07-08 2005-02-03 Ntt Docomo Inc Multiple input multiple output propagation path signal transmitting apparatus and receiving station
JP2006109255A (en) * 2004-10-07 2006-04-20 Matsushita Electric Ind Co Ltd Multi-antenna fully duplex radio equipment, and communication method thereof
JP2007089144A (en) * 2005-08-24 2007-04-05 Matsushita Electric Ind Co Ltd Mimo-ofdm transmitter and mimo-ofdm transmitting method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NISHIMURA T. ET AL.: "Koyu Beam Kukan Bunkatsu Taju Hoshiki ni Okeru Channel Suitel Gosa o Koryo shita Baai no Tokusei Hyoka", IEICE TECHNICAL REPORT, JAPAN, vol. 102, no. 204, 17 July 2002 (2002-07-17), pages 25 - 30, XP003023211 *
NISHIMURA T. ET AL.: "MIMO Channel deno SDMA Kudari Kaisen Beam Keiseiho", IEICE TECHNICAL REPORT, JAPAN, vol. 101, no. 371, 13 October 2001 (2001-10-13), pages 23 - 30, XP000291276 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5149971B2 (en) * 2008-12-09 2013-02-20 株式会社日立製作所 Wireless communication system and wireless communication method
JP2012511860A (en) * 2008-12-12 2012-05-24 エルジー エレクトロニクス インコーポレイティド Spatial division multiple access for wireless LAN and channel estimation for this
US9564999B2 (en) 2008-12-12 2017-02-07 Lg Electronics Inc. Space division multiple access for wireless LAN, and channel estimation for the same
US9781578B2 (en) 2008-12-12 2017-10-03 Lg Electronics Inc. Space division multiple access for wireless LAN, and channel estimation for the same
US10206070B2 (en) 2008-12-12 2019-02-12 Lg Electronics Inc. Space division multiple access for wireless LAN, and channel estimation for the same
US9173191B2 (en) 2009-12-20 2015-10-27 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication devices
US10256881B2 (en) 2009-12-20 2019-04-09 Intel Corporation Apparatus, system and method of sounding feedback sequence of explicit beamforming training
US10447364B2 (en) 2009-12-20 2019-10-15 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication devices
US10938463B2 (en) 2009-12-20 2021-03-02 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication devices
US11791875B2 (en) 2009-12-20 2023-10-17 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication devices
JP2014161070A (en) * 2009-12-23 2014-09-04 Intel Corp Device, system and method of simultaneously communicating with group of wireless communication devices

Also Published As

Publication number Publication date
JP4856195B2 (en) 2012-01-18
JPWO2008084540A1 (en) 2010-04-30

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