Transcript 21-05-0242-00-0000-InterDigital

• IEEE 802.21 MEDIA INDEPENDENT HANDOVER
• DCN: 21-05-0203-00-0000
• Title: MEDIA INDEPENDENT HANDOVER Functions and
Services Specification
• Date Submitted: March 7th, 2005
• Presented at IEEE 802.21 session #NN in City
• Authors or Source(s): Alan Carlton, Ulises Olvera-Hernandez,
Marian Rudolf, Juan Carlos Zuniga,
• Abstract:
• Summary of the key aspects of the Media Independent Handover
Proposal
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IEEE 802.21 presentation release statements
• This
document has been prepared to assist the IEEE 802.21 Working Group. It
is offered as a basis for discussion and is not binding on the contributing
•
•
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802.21.
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the
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Key Features

A generic and flexible MIH reference model that can apply to different
technologies such as cellular and 802.X

Logical view of network architecture which shows how 802.21 fits in
heterogeneous networks.

Introduction of generic trigger information that can be tailor-made to
accommodate multiple access technologies.

Comprehensive call flow scenarios including
 System access
 Handover
 Success and failure cases

Details of SAP, triggers and MIH services

Analysis of Mobile IP enhancement and its interactions with 802.21


Supports seamless service continuity
Flexible for implementation and requires minimum effort of standardization
work throughout the different standards groups
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Updates since Last Revision

Trigger Definition has been updated as per harmonization exercise.

Normative and informative components of the proposal have been
identified

Remote transport mechanism is defined based on the introduction of a
new ether type that introduces a new MIH protocol
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Logical Network Architecture
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Evaluation Matrix
MIHO
Support
802.3
to/from
802.X
802.3
to/from
3GPP
802.3
to/from
3GPP2
802.X
to/from
802.Y
802.X
to/from
3GPP
802.X
to/from
3GPP2
MIH Reference Model
(Architectural Precepts of Proposal)
Event
Service
Information
Service
Other
Elements
Call Flows
Discretionary
Handover
Successful
(Required)
Handover
Unsuccessful
Inc.
-
2 Scenarios
1 Scenario
Inc.
Inc.
-
2 Scenarios
1 Scenario
Supp
Inc.
Inc.
-
2 Scenarios
1 Scenario
Supp
Supp
Inc.
Inc.
-
2 Scenarios
1 Scenario
Supp
Supp
Supp
Inc.
Inc.
-
2 Scenarios
1 Scenario
Supp
Supp
Supp
Inc.
Inc.
-
2 Scenarios
1 Scenario
SI/SC
SI/NC
NI/SC
NI/NC
Supp.
Supp
Supp
Supp
Inc.
Supp.
Supp
Supp
Supp
Supp.
Supp
Supp
Supp.
Supp
Supp.
Supp.
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Proposed MIH Reference Model
Layer 3
MIH_L3_SAP
MIH_MGT_SAP
MIH
MIH Functions
MLME
MLME_SAP
Event
PLME_SAP
PLME_SAP
MAC
Remote -Information
Event
Event
Event
Remote-Event
MAC
Functions
Event
Event
Event
Event
MIH_MAC_SAP
MIH_PHY_SAP
PHY
MIH_SAP
MIH_MAC_SAP
LLC
MIH_PHY_SAP
PHY
Functions
PLME
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MIH Service Description
IEEE 802.21 specifies a set of services that allow seamless handovers
across heterogeneous access networks.
A seamless handovers can be defined as one that allows the delivery of a service on a new
access interface with equal quality as the previous access interface and that it is
imperceptible to an end user
The service encompasses the following:

Information Service (IS): The IS provides a description of available access
networks and their offered capabilities. This allows the use of state machines
that trigger handovers and system access towards the best possible connection
for the delivery of a service. This includes System Operator, Network Identities,
QoS and offered access technology amongst other.

Event Service (ES): The ES provides notifications with regards to changes to
both upper and lower layers associated to a particular link and surrounding
access networks. Notification are generated when either the current link no
longer supports service requirements or a better candidate has been found.

Media Independent Handover Function (MIH): MIH provides a set of
procedures that support the handover decision that uses both IS and ES to
determine the best point of attachment for the delivery of a service for both initial
network selection and handover. MIH considers inputs from multiple access
networks when determining a handover candidate. MIH uses IS and ES
information from both upper and lower layer when applying policy criteria. 8
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Review of Basic Mode of Operation
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Dual Mode Terminal
3GPP
Handover
MIH
Network
MIH_L3MM_SAP
MIH_MIP_SAP
MIH
MIH Main Function
Compile triggers
and determineREQUIRED!
if handover shall be requested
HANDOVER
MIH_SAP
MAC
LLC
FER
QoS
ACK
MIH_PHY_SAP
PHY
Noise
Interf
RSSI
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MIH_SAP
SAP
MIH
If Measurement crossed threshold
then fire trigger
MIH_SAP
SAP
MIH
If Measurement crossed threshold
then fire trigger
PHY
MAC_Event
MIH_MAC_SAP
PHY_Event
PHY_Event
MAC_Event
MIH_SAP
SAP SAP
LLC
MIH_MAC_SAP
MAC
MIH_PHY_SAP
Information_Service
Remote_MIH_Event
10
Dual Mode Terminal
3GPP
3GPP RAN/CN
Set-up radio bearer
Network
MIH
MIH_L3MM_SAP
MIH_MIP_SAP
MIH
MIH
MIH Main
Main Function
Function
Compile triggers
and determineREQUIRED!
ifCOPLETE!
handover shall be requested
HANDOVER
HANDOVER
MIH_SAP
MAC
LLC
FER
QoS
ACK
MIH_PHY_SAP
PHY
Noise
Interf
RSSI
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MIH_SAP
SAP
MIH
If Measurement crossed threshold
then fire trigger
MIH_SAP
SAP
MIH
If Measurement crossed threshold
then fire trigger
PHY
MAC_Event
MIH_MAC_SAP
PHY_Event
PHY_Event
MAC_Event
MIH_SAP
SAP SAP
LLC
MIH_MAC_SAP
MAC
MIH_PHY_SAP
Information_Service
Remote_MIH_Event
11
Dual Mode Terminal
Mobile IP
Handover
MIH
MIH_L3MM_SAP
Network
MIH_MIP_SAP
MIH
MIH Main Function
Compile triggers
and determineREQUIRED!
if handover shall be requested
HANDOVER
MIH_SAP
MAC
LLC
FER
QoS
ACK
MIH_PHY_SAP
PHY
Noise
Interf
RSSI
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MIH_SAP
SAP
MIH
If Measurement crossed threshold
then fire trigger
MIH_SAP
SAP
MIH
If Measurement crossed threshold
then fire trigger
PHY
MAC_Event
MIH_MAC_SAP
PHY_Event
PHY_Event
MAC_Event
MIH_SAP
SAP SAP
LLC
MIH_MAC_SAP
MAC
MIH_PHY_SAP
Information_Service
Remote_MIH_Event
12
New AP
Dual Mode Terminal
Mobile IP
Use new CoA
CN/HA
Network
MIH
MIH_L3MM_SAP
MIH_MIP_SAP
MIH
MIH
MIH Main
Main Function
Function
Compile triggers
and determineREQUIRED!
ifCOPLETE!
handover shall be requested
HANDOVER
HANDOVER
MIH_SAP
MAC
LLC
FER
QoS
ACK
MIH_PHY_SAP
PHY
Noise
Interf
RSSI
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MIH_SAP
SAP
MIH
If Measurement crossed threshold
then fire trigger
MIH_SAP
SAP
MIH
If Measurement crossed threshold
then fire trigger
PHY
MAC_Event
MIH_MAC_SAP
PHY_Event
PHY_Event
MAC_Event
MIH_SAP
SAP SAP
LLC
MIH_MAC_SAP
MAC
MIH_PHY_SAP
Information_Service
Remote_MIH_Event
13
Trigger/Functionality Review (1 of 10)
Trigger Designation
Event Reported
MIH_SERVICE.req
Request to provide Upper
event triggers
Layer
Entity
MIH_SERVICE.req
Request to provide Upper
information
Layer
triggers
Entity
MIH_SERVICE.ind
Request to provide Remote
event triggers
MIH
Function
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Source
When
generated
Upper
The trigger is
Layer
generated
Manageme when an
nt Entity
external
entity
requests
Media
Independent
Handover
event trigger
Services
Upper
The trigger is
Layer
generated
Manageme when an
nt Entity
external
entity
requests
Media
Independent
Handover
information
Services
Remote
The trigger is
MIHME_S generated
AP
when an
external
entity
requests
Media
Independent
Handover
event trigger
Services
Sender
Receiver
Dest.
Effect of
Information
Scope
receipt
Elements
The MIH
Local
TriggerTypeList,
attempts
DestinationAddre
activation of
ss,
event triggers
ReceiverAddress,
as requested
SenderAddress
by upper
RequestId, Upper
layer entity
LayerType
Trigger
Description
An upper layer
entity uses this
trigger to request
activation of the
event service
An upper layer
entity uses this
trigger to request
activation of the
information
service
MIHME_SAP
(Media
Independent
Handover
Management
Entity_Service
Access Point)
MIH
MIHME_SAP
(Media
Independent
Handover
Management
Entity_Service
Access Point)
MIH
The MIH
Local
attempts
activation of
system
information
triggers as
requested by
upper layer
entity.
Local
MIHME_SAP
MIH
The MIH
Remote TriggerTypeList, The peer MIH
attempts
DestinationAddre uses this trigger
activation of
ss,
to request
event triggers
ReceiverAddress, activation of the
as requested
SenderAddress event service
by remote
RequestId, Upper
peer
LayerType
TriggerTypeList,
DestinationAddre
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
RequestId, Upper
LayerType
14
Trigger/Functionality Review (2 of 10)
Trigger Designation
Event Reported
Source
Sender
MIH_SERVICE.ind
Request to provide Remote
information
MIH
triggers
Function
Remote
MIHME_S
AP
MIH_SERVICE.conf
Acknowledgement MIH
indicating the
Function
outcome of the
requested service
MIHME_S
AP (Media
Independen
t Handover
Manageme
nt
Entity_Serv
ice Access
Point)
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When
Receiver
Dest.
generated
The trigger is Local
MIH
generated
MIHME_SAP
when an
external
entity
requests
Media
Independent
Handover
information
Services
The trigger is Upper Layer Entity UL
generated a
result of a
external
entity
requesting
Media
Independent
Handover
Services
Effect of
Information
Trigger
Scope
receipt
Elements
Description
The MIH
Remote TriggerTypeList, The peer MIH
attempts
DestinationAddre uses this trigger
activation of
ss,
to request
system
ReceiverAddress, activation of the
information
SenderAddress information
triggers as
RequestId, Upper service
requested by
LayerType
upper layer
entity.
The effect on Local
the upper
layer entity is
not specified
RequestId,
DestinationAddre
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
UpperSystemInfo
rmation
The MIH function
uses this
primitive to
provide the result
of a request for
event or
information
services. For the
information
service the
primitive also
provides system
information based
on the provided
Upper layer Type.
15
Trigger/Functionality Review (3 of 10)
Trigger Designation
Event Reported
MIH_CONFIG.req
MIH specific
configuration
request
MIH_CONFIG.conf
Acknowledgement MIH
indicating the
Function
outcome of the
requested service
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Source
Upper
Layer
Entity
When
generated
Upper
A external
Layer
management
Manageme entity
nt Entity generates
this trigger
when it needs
to request
configuration
of Media
Independent
Handover
system
parameters.
Sender
Receiver
MIHME_SAP
(Media
Independent
Handover
Management
Entity_Service
Access Point)
Dest.
MIH
MIHME_S The trigger is Upper Layer Entity UL
AP (Media generated
Independen when an
t Handover external
Manageme entity
nt
requests
Entity_Serv configuration
ice Access of interPoint)
technology
system
paramters.
Effect of
Information
Scope
receipt
Elements
The MIH
Local RequestId,
attempts
DestinationAddre
configuration
ss,
of system
ReceiverAddress,
parameters
SenderAddress,
as per
SourceAddress,
request.
INTTECHVECTO
R
Trigger
Description
An upper layer
entity uses this
trigger to request
configuration of
inter-technology
system
parameters and
thresholds
The effect on Local
the upper
layer entity is
not specified
The MIH function
uses this
primitive to
provide the result
of a request for
configuration of
inter-technology
system
parameters and
thresholds.
RequestId,
DestinationAddre
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
ConfigurationRep
ortMap
16
Trigger/Functionality Review (4 of 10)
When
Receiver
generated
MIH
MIH
The MIH
MLME_SAP
Function Manageme management
nt Entity
entity
generates
this trigger
when it needs
to request
configuration
of Media
Independent
Handover
system
parameters
within the
MAC layer.
Trigger Designation
Event Reported
MLME_MIHMGT.req
MIH specific
configuration
request
MLME_MIHMGT.conf
Acknowledgement MAC
MLME_SA The trigger is MIH Management MIH
indicating the
Managem P
generated
Entity
outcome of the
ent Entity
when an MIH
requested service
requests
configuration
of intertechnology
system
parameters.
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Source
Sender
Dest.
MAC
Mgmt
Entity
Effect of
Information
Scope
receipt
Elements
The MAC
Local RequestId,
layer
DestinationAddre
attempts
ss,
configuration
ReceiverAddress,
of system
SenderAddress,
parameters
SourceAddress,
as per
MACMIHVECTO
request.
R
Trigger
Description
MIH uses this
trigger to request
configuration of
technology
specific MIH
parameters and
thresholds
MIH commits Local
values for
thresholds
and system
parameters
The MAC
management
entity uses this
primitive to
provide the result
of a request for
configuration of
inter-technology
system
parameters and
thresholds.
RequestId,
DestinationAddre
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
ConfigurationRep
ortMap
17
Trigger/Functionality Review (5 of 10)
Event Reported
PLME_MIHMGT.req
MIH specific
configuration
request
PLME_MIHMGT.conf
Acknowledgement PHY
PLME_SA The trigger is MIH Management MIH
indicating the
Managem P
generated
Entity
outcome of the
ent Entity
when an MIH
requested service
requests
configuration
of intertechnology
system
parameters.
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Source
When
Receiver
generated
MIH
The MIH
PLME_SAP
Manageme management
nt Entity
entity
generates
this trigger
when it needs
to request
configuration
of Media
Independent
Handover
system
parameters
within the
MAC layer.
Trigger Designation
MIH
Function
Sender
Dest.
PHY
Mgmt
Entity
Effect of
Scope
receipt
The PHY
Local
layer
attempts
configuration
of system
parameters
as per
request.
Information
Elements
RequestId,
DestinationAddre
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
PHYMIHVECTO
R
Trigger
Description
MIH uses this
trigger to request
configuration of
technology
specific MIH
parameters and
thresholds
MIH commits Local
values for
thresholds
and system
parameters
RequestId,
DestinationAddre
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
ConfigurationRep
ortMap
The PHY
management
entity uses this
primitive to
provide the result
of a request for
configuration of
inter-technology
system
parameters and
thresholds.
18
Trigger/Functionality Review (6 of 10)
Trigger Designation
Event Reported
MIH_HO_PREPARE.re Link Availability
q
from upper layer
Source
Sender
Upper
Upper
Layer
Layer
Mobility Entity
Managem
ent Entity
MIH_HO_PREPARE.re Link Request from Upper
Upper
q
upper layer
Layer
Layer
Mobility Entity
Managem
ent Entity
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When
generated
The upper
layer
generates
this trigger
when it wants
to signal the
availability of
a new link
The upper
layer
generates
this trigger
when it needs
to request the
establishment
of a new link
Receiver
Dest.
MIH_SAP (Media MIH
Independent
Handover_Service
Access Point)
MIH_SAP (Media MIH
Independent
Handover_Service
Access Point)
Effect of
Information
Scope
receipt
Elements
The MIH
Local RequestId,
function uses
RequestType
this input to
DestinationAddre
determine
ss,
whether at
ReceiverAddress,
Handover
SenderAddress,
shall be
SourceAddress,
triggered
ReportInterval
towards the
new link
The MIH
Local RequestId,
function
RequestType,
attempts
DestinationAddre
establishmen
ss,
t of a new link
ReceiverAddress,
SenderAddress,
SourceAddress,
NetworkPreferen
ceMap
Trigger
Description
The upper layer
entity uses this
triggers to signal
the availability of
a new link valid
for the duration of
a reported period
The upper layer
entity uses this
triggers to
request the
establishment of
a new link. A
preferred list of
candidates might
be optionally
provided
19
Trigger/Functionality Review (7 of 10)
Trigger Designation
Event Reported
Source
Sender
MIH
Function
MIH_SAP
MIH_HO_PREPARE.ind Link supporting
MIH
current interface is Function
unavailable
MIH_SAP
MIH_HO_PREPARE.co Link request
nf
confirmation
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When
Receiver
Dest.
generated
The MIH
Upper Layer Entity UL
generates
this trigger
when a
request to
provide an
alternate link
or a
notification
regarding the
availability of
a new link is
received
The MIH
Upper Layer Entity UL
generates
this trigger
when the link
supporting
the current
interface in no
longer
available
Effect of
Information
Scope
receipt
Elements
The effect on Local/R RequestId,
the upper
emote RequestType,
layer entity is
DestinationAddre
not specified
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
CandidateMACad
dressList,
CandidateIPAddr
essList
Trigger
Description
The MIH uses
this trigger to
confirm a new
attempt to
establish an
alternate link or
as an
acknowledgemen
t that a new link
is available
The effect on Local/R RequestId,
the upper
emote TriggerType,
layer entity is
DestinationAddre
not specified
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
CurrentPofAIPAd
dress,
CurrentPofAMAC
Addres,CurrentC
ontext,
CandidateMACad
dressList,
CandidateIPAddr
essList,
ServiceReference
Id, ActionTime
The MIH uses
this trigger to
provide upper
layers with an
indication
regarding the
conditions
prevailing at the
link layer
supporting the
current interface.
In particular this
trigger indicates
that the current
link is
unavailable.
20
Trigger/Functionality Review (8 of 10)
Trigger Designation
Event Reported
Source
Sender
MIH_HO_PREPARE.ind Alternate Link is
available
MIH
Function
MIH_SAP
MIH_HO_PREPARE.ind An alternate Link
is required
MIH
Function
MIH_SAP
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When
Receiver
Dest.
generated
The MIH
Upper Layer Entity UL
generates
this trigger
when an
alternate late
to support an
interface has
become
available
Effect of
Information
Scope
receipt
Elements
The effect on Local/R RequestId,
the upper
emote TriggerType,
layer entity is
DestinationAddre
not specified
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
CurrentPofAIPAd
dress,
CurrentPofAMAC
Addres,CurrentC
ontext,
CandidateMACad
dressList,
CandidateIPAddr
essList,
ServiceReference
Id, ActionTime
Trigger
Description
The MIH uses
this trigger to
provide upper
layers with an
indication
regarding the
conditions
prevailing at the
link layer
supporting the
current interface.
In particular this
trigger is fired to
indicate the
establishment or
the availability of
a L2 conn
Trigger is fired Upper Layer Entity UL
when the
requirements
established
on a current
link cannot
longer be met
The effect on Local/R RequestId,
the upper
emote TriggerType,
layer entity is
DestinationAddre
not specified
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
CurrentPofAIPAd
dress,
CurrentPofAMAC
Addres,CurrentC
ontext,
CandidateMACad
dressList,
CandidateIPAddr
essList,
ServiceReference
Id, ActionTime
The MIH uses
this trigger to
provide upper
layers with an
indication
regarding the
conditions
prevailing at the
link layer
supporting the
current interface.
In particular this
trigger is fired
when the
requirements
established on
the current link
cannot l
21
Trigger/Functionality Review (9 of 10)
Trigger Designation
Event Reported
Source
Sender
MIH_HO_COMMIT.ind
Establishment of
alternate Link is
complete
MIH
Function
MIH_SAP
MIH_HO_COMMIT.ind
Establishment of
alternate link is
Aborted
MIH
Function
MIH_SAP
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When
Receiver
Dest.
generated
Trigger is fired Upper Layer Entity UL
when a layer
2 Handover
has
successfully
completed
Effect of
Information
Scope
receipt
Elements
The effect on Local/R RequestId,
the upper
emote TriggerType,
layer entity is
DestinationAddre
not specified
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
CurrentPofAIPAd
dress,
CurrentPofAMAC
Addres,CurrentC
ontext,
CandidateMACad
dressList,
CandidateIPAddr
essList,
ServiceReference
Id, ActionTime
Trigger
Description
The MIH uses
this trigger to
provide upper
layers with an
indication
regarding
availability of a
link previously
reported as
unsuitable to
provide the
relevant service.
In particular this
trigger is fired to
indicate
successful
completion of a
L2 handover
Trigger is fired Upper Layer Entity UL
when a layer
2 has been
aborted
The effect on Local/R RequestId,
the upper
emote TriggerType,
layer entity is
DestinationAddre
not specified
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
CurrentPofAIPAd
dress,
CurrentPofAMAC
Addres,CurrentC
ontext,
CandidateMACad
dressList,
CandidateIPAddr
essList,
ServiceReference
Id, ActionTime
The MIH uses
this trigger to
provide upper
layers with an
indication
regarding
availability of a
link previously
reported as
unsuitable to
provide the
relevant service.
is fired when L2
handover is
aborted. L2 HO
might be aborted
either due to
unsuccessfu
22
Trigger/Functionality Review (10 of 10)
Trigger Designation
Event Reported
MIH_MACEVENT.ind
MAC event is
reported
Media
specific
MAC
entity
When
Receiver
generated
MAC layer Trigger is fired MIH_MAC_SAP
when a MIH
threshold is
crossed
MIH_PHYEVENT.ind
PHY event is
reported
Media
specific
PHY
entity
PHY layer Trigger is fired MIH_PHY_SAP
when a MIH
threshold is
crossed
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Source
Sender
Dest.
MIH
MIH
Effect of
Information
Scope
receipt
Elements
MIH
Local
RequestId,
determines
DestinationAddre
whether a HO
ss,
trigger to
ReceiverAddress,
upper layer is
SenderAddress,
required
SourceAddress,
MACMIHVECTO
R
Trigger
Description
The MAC layer
uses this trigger
to indicate the
MIH function
whether
technology
specific
thresholds have
been crossed.
Details of the
readings that
caused the
trigger to be fired
are also provided.
MIH
Local
determines
whether a HO
trigger to
upper layer is
required
The PHY layer
uses this trigger
to indicate the
MIH function
whether
technology
specific
thresholds have
been crossed.
Details of the
readings that
caused the
trigger to be fired
are also provided.
RequestId,
DestinationAddre
ss,
ReceiverAddress,
SenderAddress,
SourceAddress,
PHYMIHVECTO
R
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Call Flow Scenarios
The following call flow scenarios are included:

System access under 3GPP coverage

Handover from 802.11 to 3GPP network

Handover from 3GPP to 802.11 network

Handover from 802.11 to 802.3

Handover from 802.3 to 802.11

Handover between 802.x networks
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Thank you!
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