IEEE MEDIA INDEPENDENT HANDOVER DCN: srho Title: Recap of Multi-Radio Power Management (MRPM) Date Submitted: September 21, 2011 Presented at IEEE 802 interim in Bangkok Authors or Sources: Junghoon Jee, Anthony Chan, Dennis Edwards, Behcet Sarikaya, James Han, Abstract: Recap of Multi-Radio Power Management for the future planning of IEEE

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3G WWAN Home Airport Zone 1Zone 2Zone 3 Zone 4 Zone 5 Zone 6 Zone 7Zone 9 WiMAX Zone 8 WiMAX Radio State 3G WWAN Wi-Fi WiMAX GPS Radio State 3G WWAN Wi-Fi WiMAX GPS Radio State 3G WWAN Wi-Fi WiMAX GPS Radio State 3G WWAN Wi-Fi WiMAX GPS Radio State 3G WWAN Wi-Fi WiMAX GPS Radio State 3G WWAN Wi-Fi WiMAX GPS Radio State 3G WWAN Wi-Fi WiMAX GPS IEEE for Network Discovery IEEE , SIP, VCC, IMS, for Network Selection and Service Continuity across multiple radios (3G WWAN  Wi-Fi  WiMAX) , SIP, IMS for Service Continuity (Wi-Fi  WiMAX) VCC, SIP, IMS for Call Continuity (3G WWAN  Wi-Fi) Plug into power jack Turn on Wi-Fi Continue over Wi-Fi Wi-Fi Link Going Down. Shutdown Wi-Fi Operator initiated switch to WiMAX Continue session on WiMAX Connect to Wi-Fi Battery level low Shutdown WiMAX Switch to 3G WWAN Turn on Wi-Fi Continue session on Wi-Fi Operating on 3G WWAN Continue session on 3G WWAN What IEEE targeted…

Contents Overview MRPM Principle MRPM Use cases Existing power management in individual radio technology Power Management Problems Basic MIH capabilities

Moving Forward Single Radio Operation

9 Contents Overview Power Management Problems MRPM Principle MRPM Use cases Existing power management in individual radio technology Basic MIH capabilities

Optimized Handover between different technologies IEEE , Published in Jan-2009 Security Signaling during Handovers IEEE a, PAR Approved in Dec-2008 Handovers to Broadcast Technologies IEEE b, PAR Approved in Jan-2009 Battery Power Conservation in Multi-Radio devices MRPM (IEEE c) Multi-Radio Activities in IEEE

Contents Overview Power Management Problems MRPM Principle MRPM Use cases Existing power management in individual radio technology Basic MIH capabilities

Rapid Power Consumption by Multiple Radios GPP; 3GPP2 +–+– +–+– +–+– Different technologies have different modes of operation each with different power consumption GPP; 3GPP2 +–+– Drains battery fast if power consumption is optimized only within each individual technology ServiceStandbySleepBattery life (approx. # only for cellular ) 1 radio R12 hrs (talk time) 1 radio 2 radios 3 radios R124 hrs (customer expectation) R1,R212 hrs R1,R2,R38 hrs 1 radio 2 radios 3 radios R16 days (customer expectation) R1,R23 days R1,R2,R32 days Power Battery life Power Battery life R1 R2R3R1

Contents Overview Power Management Problems MRPM Principle MRPM Use cases Existing power management in individual radio technology Basic MIH capabilities

Multi-Radio Power Management (1) Purpose: Enhance the user experience by extending the battery operating life of multi-radio mobile devices. Scope: Define mechanisms to reduce power consumption of multi-radio mobile devices based on IEEE services. Not in Scope: Enhancements to the MAC/PHY of individual access technologies for making them more power efficient are outside the scope of this project.

Multi-Radio Power Management (2) Enables to put inaccessible or unused radios into lower power states (Off or Deep-sleep) Enables to activate the deactivated radios when required Within coverage area, application requirement, network capacity Enables to select best radio and its corresponding power state for an application service Enables to minimize the time in accessing the network when activating a radio Acquiring configuration parameters to access the network in advance

Multi-Radio Power Management (3) Power Battery life Power Battery life Power Battery life negligible Single radioMultiple radiosMultiple radios with MRPM

Multi-Radio Power Management (4) MIH (Neighboring Network MAP) MIH (Neighboring Network MAP) MRPM - Device power characteristics - Each I/F status (power state) MRPM - Device power characteristics - Each I/F status (power state) WiMAX WiFi 3GPP MIH MRPM -Location -Network Accessibility MRPM -Location -Network Accessibility Policy Control Policy Control Multi Interface Control Multi Interface Control Network Selection Network Selection Radio (WiFi, WiMAX, 3GPP) Radio (WiFi, WiMAX, 3GPP) Resource Management Resource Management QoS Operator Policy Power States Power States Control

Contents Overview Power Management Problems MRPM Principle MRPM Use cases 1. Minimizing Power Consumption 2. Network Selection 3. Lowest power configuration 4. Use of deep sleep state Existing power management in individual radio technology Basic MIH capabilities

Use Case #1. In Service Multiple radios are active for application services Primary Radio MAY be mainly utilized for application services Unutilized radios are put into Off or Deep-Sleep Power In serviceSleep In service Power In service Off or Deep Sleep Each radio controlled independently Potential MRPM solution Deep Sleep

Use Case #2. No Service Power Idle Sleep Power Idle Off or Deep Sleep Off or Deep Sleep Multiple radios are in sleep states consuming unnecessary power Unutilized radio is put into Off or Deep-Sleep Each radio controlled independently Potential MRPM solution

Use Case #3. Single Idle State Power Idle Sleep Idle Power Idle Off or Deep Sleep Off or Deep Sleep Multiple radios are in idle states Primary radio may be utilized for paging Unnecessary idle state radio is put into deep sleep or off state Out of coverage area Coverage overlap Location management through single idle state radio Each radio controlled independently Potential MRPM solution

Case 4 Illustration of Use Cases WiMAX Paging Area B 3GPP Tracking Area AP 6 AP 5 Cell 5 Cell 6 TAU to 3GPP paging controller. Cell 1 Cell 2 Cell 3 Cell 4 AP 1 AP 2 AP 3 AP 4 Multiple Active Radios WiMAX Paging Area A Application is terminated WiFi into PSM WiFi is turned-off WiMAX is turned-off Single Active Radio Use Case #1 Use Case #2 Use Case #3 MRPM 3GPP Paging Controller WiMAX

Contents Overview Power Management Problems MRPM Principle MRPM Use cases Existing power management in individual radio technology Basic MIH capabilities

media independent handover (MIH) services MIH Function MIH_SAP Network 2 (e.g., 3GPP) Network 1 (e.g., ) MIH_LINK_SAP LLC_SAP Handover Event Service Command Service Information Service Command Service Event Service Information Service LLC_SAP SIP MIPHMIP Layer 3 and Above Layers

MIH at devices and at networks enables collaboration between them u g Higher Layer IP MAC PHY Higher Layer IP MAC PHY MIHF MIH_NET_SAP MIHF MIH_NET_SAP Logical Connection between peer nodes

MRPM PAR/5C is at: revised-par-and-5c.dochttps://mentor.ieee.org/802.21/file/08/ mrpm- revised-par-and-5c.doc Feedback:

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