JP5686515B2 - 無線ネットワークで中央装置によってウェイク/スリープ・サイクルをスケジューリングする方法 - Google Patents
無線ネットワークで中央装置によってウェイク/スリープ・サイクルをスケジューリングする方法 Download PDFInfo
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- JP5686515B2 JP5686515B2 JP2009295738A JP2009295738A JP5686515B2 JP 5686515 B2 JP5686515 B2 JP 5686515B2 JP 2009295738 A JP2009295738 A JP 2009295738A JP 2009295738 A JP2009295738 A JP 2009295738A JP 5686515 B2 JP5686515 B2 JP 5686515B2
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- Prior art keywords
- wake
- sleep
- cycle
- mobile device
- scheduling
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- 238000000034 method Methods 0.000 title claims description 34
- 230000003213 activating effect Effects 0.000 claims description 2
- 238000013459 approach Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 6
- 238000007726 management method Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 230000011664 signaling Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004622 sleep time Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- H04W52/02—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 master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
-
- 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
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
-
- 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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/02—Hybrid access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/04—Scheduled access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Rm,x,y q=Min{Min{Rm,x,y,Rm,x,y max},Max{Rm,x,y em,Rm,x,y min}}
なお、Rm,x,y em、Rm,x,yは、緊急データ(emergency data)を送信するレートと、接続Cm,x,yについて全てのバッファリングされたデータを送信するレートとを表す。緊急データは、ξm,x,yを越える待機期間を有するデータである。従って、接続の“非QoSレート”は
Rm,x,y nq=Rm,x,y-Rm,x,y q
と定義される。
TS=min{Tm C,m∈A} (1)
で与えられるように、組Aに含まれる全てのMSの中の最小遅延制約であってよい。
Tm S=[Tm C/TS]・TS,m∈A (2)
と定義される。
Tm I=Tm S-Tm L (フレーム)
である。
Tm S=nm・TS (4)
なお、整数nmは
[外1]
は、以下:
TS システム・スケジューリング・サイクル
Tm S MSのスケジューリング・サイクル
Tm L リスニング・ウィンドウ
Tm I スリープ・ウィンドウ
Tm C スリープ・サイクル期間
Claims (7)
- 少なくとも1つのモバイル装置を有する無線ネットワークで中央装置によってウェイク/スリープ・サイクルをスケジューリングする方法であって、
システム基準サイクルの整数倍であるウェイク/スリープ・サイクル長を各モバイル装置に帰属させるステップと、
各モバイル装置のウェイク/スリープ・サイクル内でスリープ期間及びウェイク期間を割り当てるステップと、
各モバイル装置のウェイク/スリープ・サイクルを、他のモバイル装置のウェイク/スリープ・サイクルとのウェイク期間のコリジョンを回避するよう配置するステップと
を有し、
実時間サービスを有する全ての前記モバイル装置の中の、実時間サービスに対する遅延制約の最小値は、前記システム基準サイクルとして設定され、
新しいモバイル装置が前記中央装置と結びつく場合に、より長いウェイク/スリープ・サイクル長を有する1又はそれ以上のモバイル装置のウェイク/スリープ・サイクル長は、前記システム基準サイクルのより小さい整数倍に変更される、方法。 - 各モバイル装置のウェイク/スリープ・サイクルを配置する前記ステップは、他のモバイル装置のウェイク/スリープ・サイクルとのウェイク期間のコリジョンを回避するよう各モバイル装置のウェイク/スリープ・サイクルの開始時間を調整するステップを有する、請求項1記載の方法。
- 1又はそれ以上のモバイル装置は高い優先度を伴うサービスを有する、請求項1又は2記載の方法。
- 実時間サービスは前記高い優先度を有する、請求項3記載の方法。
- 実時間サービスを有するモバイル装置のウェイク/スリープ・サイクル長は、当該モバイル装置の実時間サービスに対する最大遅延要求より短いという制約下で前記システム基準サイクルの最大の整数倍として考えられる、請求項4記載の方法。
- モバイル装置のウェイク期間は、当該モバイル装置の実時間サービスのQoS要求に基づいて設定される、請求項4記載の方法。
- モバイル装置のウェイク/スリープ・サイクルをスケジューリングする方法であって、
システム基準サイクルの整数倍として定義される長さを有するスリープ/ウェイク・サイクルについてのスケジューリング・データを中央ステーションから受信するステップと、
前記スケジューリング・データの関数として適切な回路を起動し且つスリープに設定するステップと
を有し、
実時間サービスを有する全ての前記モバイル装置の中の、実時間サービスに対する遅延制約の最小値は、前記システム基準サイクルとして設定され、
前記スケジューリング・データは、他のモバイル装置が前記中央ステーションと結びつく場合に、前記ウェイク/スリープ・サイクルの長さを前記システム基準サイクルのより小さい整数倍へ変更する、方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09305006.0 | 2009-01-06 | ||
EP09305006A EP2205029A1 (en) | 2009-01-06 | 2009-01-06 | A method for scheduling wake/sleep cycles by a central device in a wireless network |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010161772A JP2010161772A (ja) | 2010-07-22 |
JP5686515B2 true JP5686515B2 (ja) | 2015-03-18 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009295738A Expired - Fee Related JP5686515B2 (ja) | 2009-01-06 | 2009-12-25 | 無線ネットワークで中央装置によってウェイク/スリープ・サイクルをスケジューリングする方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US9497704B2 (ja) |
EP (2) | EP2205029A1 (ja) |
JP (1) | JP5686515B2 (ja) |
KR (1) | KR101636577B1 (ja) |
CN (1) | CN101815347A (ja) |
BR (1) | BRPI1000089A2 (ja) |
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2009
- 2009-01-06 EP EP09305006A patent/EP2205029A1/en not_active Withdrawn
- 2009-12-22 EP EP09180343.7A patent/EP2207390B1/en active Active
- 2009-12-25 JP JP2009295738A patent/JP5686515B2/ja not_active Expired - Fee Related
- 2009-12-30 US US12/655,374 patent/US9497704B2/en active Active
-
2010
- 2010-01-04 CN CN201010000209A patent/CN101815347A/zh active Pending
- 2010-01-05 KR KR1020100000584A patent/KR101636577B1/ko active IP Right Grant
- 2010-01-05 BR BRPI1000089-5A patent/BRPI1000089A2/pt active Search and Examination
-
2016
- 2016-09-30 US US15/281,877 patent/US10206171B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
BRPI1000089A2 (pt) | 2011-03-29 |
US20170019854A1 (en) | 2017-01-19 |
KR101636577B1 (ko) | 2016-07-05 |
KR20100081940A (ko) | 2010-07-15 |
EP2207390A1 (en) | 2010-07-14 |
JP2010161772A (ja) | 2010-07-22 |
US9497704B2 (en) | 2016-11-15 |
US20100267407A1 (en) | 2010-10-21 |
US10206171B2 (en) | 2019-02-12 |
CN101815347A (zh) | 2010-08-25 |
EP2207390B1 (en) | 2017-08-30 |
EP2205029A1 (en) | 2010-07-07 |
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