WO2007081614A2 - Method and apparatus for optimal atim size setup for 802.11 networks in an ad hoc mode - Google Patents

Method and apparatus for optimal atim size setup for 802.11 networks in an ad hoc mode Download PDF

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Publication number
WO2007081614A2
WO2007081614A2 PCT/US2006/061320 US2006061320W WO2007081614A2 WO 2007081614 A2 WO2007081614 A2 WO 2007081614A2 US 2006061320 W US2006061320 W US 2006061320W WO 2007081614 A2 WO2007081614 A2 WO 2007081614A2
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WO
WIPO (PCT)
Prior art keywords
atim
nodes
window
frame
transmission
Prior art date
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Ceased
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PCT/US2006/061320
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English (en)
French (fr)
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WO2007081614A3 (en
Inventor
Xia Gao
Moo Ryong Jeong
Fujio Watanabe
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NTT Docomo Inc
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NTT Docomo Inc
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Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to JP2008544607A priority Critical patent/JP2009518967A/ja
Publication of WO2007081614A2 publication Critical patent/WO2007081614A2/en
Publication of WO2007081614A3 publication Critical patent/WO2007081614A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • 25 DIFS is used by stations operating under the DCF to transmit data frames and management frames (e.g., probe request and probe responses).
  • data frames and management frames e.g., probe request and probe responses.
  • a "beacon” frame which is another management frame, announces the existence and the identity of a network, and plays an important part in many network maintenance tasks. Beacon frames are transmitted at regular intervals to announce the network to mobile STAs, as well as match parameters for joining the network.
  • a beacon frame includes a timestamp field, a beacon interval field, a capability field, a service set identifier (SSID) field, an IBSS parameter set field, and a traffic indication map (TIM) field.
  • the IBSS parameter set field specifies a set of parameters necessary to support an IBSS network.
  • Figure 5 shows the fields of the IBSS parameter set field.
  • PCT Patent Application Publication WO 2004/077762 Al entitled “Power management in an IEEE 802.11 IBSS WLAN using an adaptive ATIM window," by Z. Zhong, filed Sep. 2004, proposes a scheme which dynamically adjusts the size of an ATIM window.
  • each STA uses the gap between the last overheard ATIM frame transmission and the end of the ATIM window to determine whether or not to increase or decrease the size of its ATIM window.
  • Each STA competes to send its beacon containing its proposed ATIM window size. The winner's proposed window size is then adopted by all STAs of the IBSS.
  • Figure 9 shows the sequences of events that occur when a collision occurs when a transmission of an ATIM frame is attempted, and when a successful exchange of ATIM/ACK messages.
  • Figure 10 is a block diagram of an overall system architecture under which a node of the present invention may improve an ATIM window size.
  • Figure 11 shows a general procedure to calculate an optimal ATIM window size A ATIM , in accordance with one embodiment of the present invention.
  • N n _ suc nodes remain in an awake state during the data transmission period and compete to send out data frames. Assuming that every node always
  • the average ⁇ meT B to transmit a beacon shows the derivations of the average ⁇ meT B to transmit a beacon, the average number of nodes N n _ suc that transmit ATIM/ ACK messages within an ATIM exchange period of length T A , and the average time T D of a data transmission period for all N n _ suc nodes to each transmit at least one frame.
  • the average time T R for a node to finish a packet transmission across a TBTT time boundary is assumed to be t data l2 , where t data is the time required to transmit a data frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/US2006/061320 2005-12-09 2006-11-29 Method and apparatus for optimal atim size setup for 802.11 networks in an ad hoc mode Ceased WO2007081614A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008544607A JP2009518967A (ja) 2005-12-09 2006-11-29 アドホックモードの８０２．１１ネットワーク用の最適ａｔｉｍサイズセットアップの方法及び装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US74914105P 2005-12-09 2005-12-09
US60/749,141 2005-12-09
US11/564,138 US20070133448A1 (en) 2005-12-09 2006-11-28 Method and apparatus for optimal atim size setup for 802.11 networks in an ad hoc mode
US11/564,138 2006-11-28

Publications (2)

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WO2007081614A2 true WO2007081614A2 (en) 2007-07-19
WO2007081614A3 WO2007081614A3 (en) 2008-01-17

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US (1) US20070133448A1 (https=)
JP (1) JP2009518967A (https=)
WO (1) WO2007081614A2 (https=)

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US8520648B2 (en) 2010-06-14 2013-08-27 Intel Corporation Beacon transmission techniques in directional wireless networks
US8855063B2 (en) 2010-05-18 2014-10-07 Intel Corporation Method and apparatus for response scheduling in a downlink multiple-user multiple input multiple output network
WO2017189142A1 (en) * 2016-04-26 2017-11-02 Intel IP Corporation Awake window protection

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JP4238918B2 (ja) * 2007-04-02 2009-03-18 沖電気工業株式会社 通信制御装置、通信制御方法、通信制御プログラム、ノード及び通信システム
US8018882B1 (en) * 2007-07-03 2011-09-13 Marvell International Ltd. Ad-hoc wireless communication system with variable ATIM window
US8189506B2 (en) * 2007-09-12 2012-05-29 Nokia Corporation Deep sleep mode for mesh points
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JP4890476B2 (ja) * 2008-01-30 2012-03-07 京セラ株式会社 通信端末
US9516116B2 (en) * 2008-06-06 2016-12-06 Apple Inc. Managing notification service connections
JP5276461B2 (ja) * 2009-02-02 2013-08-28 パナソニック株式会社 ネットワークシステム
JP5180862B2 (ja) * 2009-02-02 2013-04-10 パナソニック株式会社 ネットワークシステム
EP2414952B1 (en) * 2009-04-01 2016-09-28 Qualcomm Incorporated Managing transmissions among nodes communicating over a shared communication medium
US9007967B2 (en) * 2009-12-03 2015-04-14 Intel Corporation BSS/PBSS support and schedule-free networking in 60GHz
US8885530B2 (en) * 2009-12-24 2014-11-11 Intel Corporation Method and system for power management in an ad hoc network
US9198195B2 (en) * 2011-08-05 2015-11-24 Qualcomm Incorporated Method and apparatus for improving coexistence of synchronous and asynchronous nodes in a synchronous MAC system
KR101881495B1 (ko) * 2012-01-25 2018-08-24 삼성전자주식회사 Ｃｓｍａ／ｃａ 방식을 기반으로 통신하는 네트워크들 간의 충돌을 방지하는 방법 및 대상 노드
US9451644B2 (en) * 2012-03-29 2016-09-20 Lg Electronics Inc. Method and apparatus of uplink set-up in a wireless communication system
US9510280B2 (en) * 2012-09-06 2016-11-29 Apple Inc. Transmitting beacon frames over a wireless data link
WO2014054910A1 (ko) * 2012-10-04 2014-04-10 엘지전자 주식회사 무선랜 시스템에서 시스템 정보 업데이트 방법 및 장치
US9626698B2 (en) * 2013-04-03 2017-04-18 Qualcomm Incorporated Systems and methods for power efficient discovery of infrastructure services on a network
US8942201B1 (en) * 2013-10-07 2015-01-27 Qualcomm Incorporated Beacon frame scheduling in an independent basic service set network
US9804664B2 (en) 2014-05-27 2017-10-31 Qualcomm Incorporated Adaptive control of RF low power modes in a multi-rate wireless system using MCS value
US9781673B2 (en) * 2014-05-27 2017-10-03 Qualcomm Incorporated Adaptive control of RF low power modes in a multi-rate wireless system using device mode
US9936452B2 (en) 2014-07-09 2018-04-03 Qualcomm Incorporated Traffic advertisement and scheduling in a neighbor aware network data link
US9936479B2 (en) 2014-07-09 2018-04-03 Qualcomm Incorporated Traffic advertisement and scheduling in a neighbor aware network data link
US9756603B2 (en) * 2014-07-09 2017-09-05 Qualcomm Incorporated Traffic advertisement and scheduling in a neighbor aware network data link
US9955421B2 (en) 2014-07-09 2018-04-24 Qualcomm Incorporated Traffic advertisement and scheduling in a neighbor aware network data link
US9961668B2 (en) * 2014-10-16 2018-05-01 Qualcomm Incorporated Communication between devices of a neighbor aware network
US11093346B2 (en) * 2019-06-03 2021-08-17 EMC IP Holding Company LLC Uninterrupted backup operation using a time based approach
CN113034071B (zh) * 2021-03-09 2023-11-17 广东便捷神科技股份有限公司 一种用于零售终端机的一键补货方法

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US8855063B2 (en) 2010-05-18 2014-10-07 Intel Corporation Method and apparatus for response scheduling in a downlink multiple-user multiple input multiple output network
US9661648B2 (en) 2010-05-18 2017-05-23 Intel Corporation Method and apparatus for response scheduling in a downlink multiple-user multiple input multiple output network
US8520648B2 (en) 2010-06-14 2013-08-27 Intel Corporation Beacon transmission techniques in directional wireless networks
WO2017189142A1 (en) * 2016-04-26 2017-11-02 Intel IP Corporation Awake window protection
US9872251B2 (en) 2016-04-26 2018-01-16 Intel IP Corporation Awake window protection
CN108886809A (zh) * 2016-04-26 2018-11-23 英特尔Ip公司 唤醒窗口保护
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US20070133448A1 (en) 2007-06-14
JP2009518967A (ja) 2009-05-07
WO2007081614A3 (en) 2008-01-17

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