Transcript 21-09-0030-03-mrpm-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
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Contents
• Overview
• MRPM Principle
• MRPM Use cases
• Existing power management in individual radio technology
• Power Management Problems
• Basic MIH capabilities
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Contents
• Overview
• Power Management Problems
• MRPM Principle
• MRPM Use cases
• Existing power management in individual radio technology
• Basic MIH capabilities
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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)
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Contents
• Overview
• Power Management Problems
• MRPM Principle
• MRPM Use cases
• Existing power management in individual radio technology
• Basic MIH capabilities
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Rapid Power Consumption by Multiple Radios
802.11
3GPP;
3GPP2
802.16
Power
802.11
R1
+
–
+
–
+
–
Different technologies have
different modes of operation each
with different power consumption
Service
1 radio
802.16
R1
Standby
Power
3GPP;
3GPP2
R2
R3
+
–
Battery
Drains battery fast if
life
power consumption is
optimized only within each
individual technology
Sleep
R1
Battery life
Battery life (approx. # only for cellular )
2 hrs (talk time)
1 radio
R1
24 hrs (customer expectation)
2 radios
R1,R2
12 hrs
3 radios
1 radio
R1,R2,R3
8 hrs
R1
6 days (customer expectation)
2 radios
R1,R2
3 days
3 radios
R1,R2,R3
2 days
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Contents
• Overview
• Power Management Problems
• MRPM Principle
• MRPM Use cases
• Existing power management in individual radio technology
• Basic MIH capabilities
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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.
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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
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Multi-Radio Power Management (3)
Single radio
Power
Multiple radios
Power
Multiple radios with MRPM
Power
negligible
Battery life
negligible
Battery life
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Battery life
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Multi-Radio Power Management (4)
Network
Selection
Policy
Control
Multi
Interface
Control
Operator
Policy
QoS
Resource
operates in
Management
a power efficient
way!
MIH
(Neighboring
Network
MAP)
WiFi
MRPM
- Device power
characteristics
- Each I/F status
(power state)
WiMAX
Mobile Node
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3GPP
Power States
Power States Control
MRPM
-Location
-Network Accessibility
MIH
Radio
(WiFi, WiMAX, 3GPP)
Network Node
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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
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Use Case #1. In Service
Each radio controlled independently
Power
• 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
In service
Sleep
In service
Potential MRPM solution
Power
In service
Deep Sleep Off or Deep Sleep
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Use Case #2. No Service
Power
Each radio controlled independently
• Multiple radios are in sleep states
consuming unnecessary power
• Unutilized radio is put into Off or
Deep-Sleep
Idle
Power
Sleep
Sleep
Potential MRPM solution
Idle
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Off or
Deep Sleep
Off or
Deep Sleep
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Use Case #3. Single Idle State
Power
Each radio controlled independently
• Multiple idle state radios are in
sleep states controlled
independently
Idle
Power
Sleep
Idle
Potential MRPM solution
Idle
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Off or
Deep Sleep
• 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
Off or
Deep Sleep
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Case 4 Illustration of Use Cases
TAU to 3GPP
paging controller.
3GPP
Tracking Area
Cell 5
WiMAX is
turned-off
AP 5
Use Case #3
MRPM
Cell 6
WiMAX
Paging Area B
AP 6
3GPP
Paging
Controller
WiMAX
Paging Controller
WiFi is
turned-off
WiMAX
Paging Area A
Cell 4
Use Case #2
AP 4
WiFi into PSM
Cell 3
Cell 1
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AP 1
AP 3
Cell 2
AP 2
Multiple Active
Radios
Single Active
Radio
Application is terminated
Use Case #1
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Contents
• Overview
• Power Management Problems
• MRPM Principle
• MRPM Use cases
• Existing power management in individual radio technology
• Basic MIH capabilities
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802.21 media independent handover
(MIH) services
Service
Event
MIP
Service
Command
Service
Information
Service
Event
Service
Command
Service
HMIP
LLC_SAP
LLC_SAP
Network 1
(e.g., 802.16)
MIH_LINK_SAP
MIH
Function
SIP
MIH_LINK_SAP
MIH_SAP
Information
Layer 3 and
Above Layers
Network 2
(e.g., 3GPP)
Handover
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802.21 MIH at devices and at networks
enables collaboration between them
Higher Layer
Higher Layer
MIH_NET_SAP
MAC
MIHF
Logical
Connection
between
peer nodes
MIHF
MIH_NET_SAP
IP
IP
MAC
PHY
PHY
802.11u
802.16g
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MRPM
• PAR/5C is at:
• https://mentor.ieee.org/802.21/file/08/21-09-0021-00-mrpmrevised-par-and-5c.doc
• Feedback:
• [email protected]; [email protected];
• [email protected]
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Thank you
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