IEEE 802.21 MEDIA INDEPENDENT HANDOVER Title: Multi-Radio Power Conservation Management (MRPM)

IEEE 802.21 MEDIA INDEPENDENT HANDOVER Title: Multi-Radio Power Conservation Management (MRPM) Date Submitted: March 3 2009 Presented at IEEE 802 plenary in Vancouver Authors or Sources: Dennis Edwards, Behcet Sarikaya, James Han, Junghoon Jee, Anthony Chan Abstract: 802.21 MRPM Tutorial 21-09-0030-02-mrpm

Contents Overview MRPM Principle MRPM Use cases Existing power management in individual radio technology Power Management Problems Basic MIH capabilities 21-09-0030-02-mrpm

Contents Overview Power Management Problems MRPM Principle MRPM Use cases Existing power management in individual radio technology Basic MIH capabilities 21-09-0030-02-mrpm

Multi-Radio Activities in IEEE 802.21 • Optimized Handover between different technologies • IEEE 802.21, Published in Jan-2009 • Security Signaling during Handovers • IEEE 802.21a, PAR Approved in Dec-2008 • Handovers to Broadcast Technologies • IEEE 802.21b, PAR Approved in Jan-2009 • Battery Power Conservation in Multi-Radio devices • MRPM (IEEE 802.21c) 21-09-0030-02-mrpm

Rapid Power Consumption by Multiple Radios 802.16 802.16 3GPP; 3GPP2 3GPP; 3GPP2 Power Power 802.11 802.11 R1 R2 R3 R1 + – + – + – + – Battery life Drains battery fast if power consumption is optimized only within each individual technology Different technologies have different modes of operation each with different power consumption Battery life 21-09-0030-02-mrpm

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 802.21 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. 21-09-0030-02-mrpm

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 21-09-0030-02-mrpm

Multi-Radio Power Management (3) Single radio Multiple radios Multiple radios with MRPM Power Power Power negligible Battery life negligible Battery life Battery life 21-09-0030-02-mrpm

Multi-Radio Power Management (4) QoS Operator Policy Network Selection Policy Control Multi Interface Control Resource Management operates in a power efficient way! MIH MIH (Neighboring Network MAP) MRPM - Device power characteristics - Each I/F status (power state) • MRPM • Location • Network Accessibility Power States Power States Control Radio (WiFi, WiMAX, 3GPP) WiFi WiMAX 3GPP Network Node Mobile Node 21-09-0030-02-mrpm

Contents Overview Power Management Problems MRPM Principle MRPM Use cases Minimizing Power Consumption Network Selection Lowest power configuration Use of deep sleep state Existing power management in individual radio technology Basic MIH capabilities 21-09-0030-02-mrpm

Multiple radios are active for application services Only one active radio can be utilized for application services Unutilized radios are put into Off or Deep-Sleep Use Case #1. In Service Each radio controlled independently Power In service Sleep In service Potential MRPM solution Power In service Deep Sleep Off or Deep Sleep 21-09-0030-02-mrpm

Use Case #2. No Service Each radio controlled independently Power • Multiple radios are in sleep states consuming unnecessary power • Unutilized radio is put into Off or Deep-Sleep Idle Sleep Sleep Potential MRPM solution Power Off or Deep Sleep Off or Deep Sleep Idle 21-09-0030-02-mrpm

Use Case #3. Single Idle State Each radio controlled independently Power • Multiple idle state radios are in sleep states controlled independently • 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 Idle Sleep Idle Potential MRPM solution Power Off or Deep Sleep Off or Deep Sleep Idle 21-09-0030-02-mrpm

Case 4 Illustration of Use Cases 3GPP Paging Controller TAU to 3GPP paging controller. 3GPP Tracking Area Use Case #3 WiMAX is turned-off Cell 5 AP 5 MRPM WiMAX Paging Area B Cell 6 AP 6 WiMAX Paging Controller WiFi is turned-off Use Case #2 WiMAX Paging Area A Cell 4 AP 4 WiFi into PSM Cell 3 AP 3 Cell 2 AP 1 Cell 1 AP 2 Application is terminated Multiple Active Radios Single Active Radio Use Case #1 21-09-0030-02-mrpm

802.21 media independent handover (MIH) services Layer 3 and Above Layers SIP MIH Function Information Service Event Service MIP HMIP MIH_SAP Command Service LLC_SAP LLC_SAP Network 1 (e.g., 802.16) Network 2 (e.g., 3GPP) Information Service MIH_LINK_SAP MIH_LINK_SAP Event Service Command Service Handover 21-09-0030-02-mrpm

802.21 MIH at devices and at networksenables collaboration between them Higher Layer Higher Layer MIHF MIHF IP IP Logical Connection between peer nodes MIH_NET_SAP MIH_NET_SAP MAC MAC PHY PHY 802.11u 802.16g 21-09-0030-02-mrpm

MRPM PAR/5C is at: https://mentor.ieee.org/802.21/file/08/21-09-0021-00-mrpm-revised-par-and-5c.doc Feedback: anthonychan@huawei.com; jhjee@etri.re.kr; STDS-802-21@LISTSERV.IEEE.ORG 21-09-0030-02-mrpm

Thank you 21-09-0030-02-mrpm

IEEE 802.21 MEDIA INDEPENDENT HANDOVER Title: Multi-Radio Power Conservation Management (MRPM)