Integrated Relay Architecture for IEEE 802.16m Systems
Document Number: S802.16m-07_299r2
Date Submitted: November 14, 2007
Source:
Sassan Ahmadi
e-mail: sassan.ahmadi@intel.com
Intel Corporation
Jerry Sydir
e-mail: jerry.sydir@intel.com
Intel Corporation
Hujun Yin
e-mail: hujun.yin@intel.com
Intel Corporation
Mo-Han Fong e-mail: mhfong@nortel.com
Nortel Networks
Peiying Zhu
e-mail: pyzhu@nortel.com
Nortel Networks
Hang Zhang email: hazhang@nortel.com
Nortel Networks
Sang-Youb Kim email: sangyoub@nortel.com
Nortel Networks
Venue:
Atlanta, GA
Base Contribution:
IEEE C802.16m-07_299r2
Purpose:
For discussion and approval by IEEE 802.16 Working Group (Consideration of integrated relay for IEEE 802.16m systems)
Notice:
This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the
participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to
add, amend or withdraw material contained herein.
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also acknowledges and accepts that this contribution may be made public by IEEE 802.16.
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Outline
•
•
•
•
•
Network Architecture
Frequency Usage and Duplexing With Relay
Relay Functional Architecture
Classification of Data Plane Functions
Data and Control Flows for RS nodes
2
Network Architecture
R1
R1
16m BS
R6
R1’
R8
16m MS
R1’x
16m RS
R1’y
16m BS
R6
Access Service Network
Gateway
16e MS
R1’z
16m MS
R1’x
16m RS
Access Service Network
Layer 1 and Layer 2 protocols to be
specified by 802.16m standard
3
Frequency Usage and Duplexing With Relay
• Support for shared channel (in-band) and dedicated channel (out-ofband relay)
– Shared channel model – Multiple links share a frequency channel and
coordinate the allocation of radio resources
– Dedicated channel model – Individual links are assigned independent
instances of frequency channels and schedulers do not coordinate the
allocation of radio resources on the channels
• Duplexing schemes
– Support both TDD and FDD deployments
• FDD deployments include FDD and H-FDD MSs
– Assume that entire network is either TDD or FDD
– In FDD, all DL transmissions assigned to the DL band and all UL
transmissions assigned to the UL band.
4
Relay Functional Architecture
• Integrated relay architecture
– Extend 802.16j architecture by making MSs aware of the presence of
RSs and the multi-hop nature of the path between them and the BS.
– Some examples of how this is useful are
• Allows better network entry decisions
• Support for advanced relay techniques
• Support single relay mode based on one of 802.16j modes
5
Data Plane Functions Classified as End-to-End and Hop-byHop
• Hop-by-hop Functions
– Performed to transmit/receive data over a single hop in a multi-hop relay
network.
– Performed independently at each hop (coordination across hops is not
required)
– Performed in the same manner at each hop in the network
– Some examples of such functions are link adaptation and scheduling.
• End-to-end Functions
–
–
–
–
Performed to transmit data across a multi-hop path.
Performed in a coordinated manner from source to destination
Can be performed differently at different stations along the path.
Some examples of such functions are packet forwarding, which is
performed at all of the stations along a path, but is different at the
source, destination, and intermediate nodes and ARQ, which is
performed only at the source and destination.
6
IEEE 802.16m Air-Interface Protocol Stack
Example Classification of Layer 2 Functions Across Data and Control
Planes
Network Layer
Routing
Radio Resource
Management
Location
management
System
configuration
management
Multi-Carrier
Support
Mobility
Management
Idle Mode
Management
MBS
Self-Organization
Network-entry
Management
Security
management
Connection
Management
Convergence Sublayer
MAC Common Part Sub-layer (Resource Control and Management Functions)
Sleep Mode
Management
Data Forwarding
QoS
ARQ
MAC Common Part Sub-layer (End-to-End Functions)
MAC Common Part Sub-layer (Hop-by-Hop Functions)
Fragmentation/Packing
Scheduling and
Resource
Multiplexing
MAC PDU formation
PHY control
Multi-Radio
Coexistence
Interference
management
Ranging
Control Plane
Link Adaptation
(CQI, HARQ, power
control)
Control
Signaling
Encryption
Data Plane
7
IEEE 802.16m Protocol Functions for End Nodes (BS, MS)
Network Layer
Routing
Radio Resource
Management
Location
management
System
configuration
management
Multi-Carrier
Support
Mobility
Management
Idle Mode
Management
MBS
Self-Organization
Network-entry
Management
Security
management
Connection
Management
Convergence Sublayer
MAC Common Part Sublayer
Sleep Mode
Management
QoS
Scheduling and
Resource
Multiplexing
Multi-Radio
Coexistence
ARQ
Fragmentation/Packing
MAC PDU formation
PHY control
Data Forwarding
Interference
management
Ranging
Link Adaptation
(CQI, HARQ, power
control)
Control
Signaling
Encryption
Data Plane
Control Plane
Physical Layer
8
Data Flow for IEEE 802.16m End Nodes (BS, MS)
Network Layer
Routing
Radio Resource
Management
Location
management
System
configuration
management
Multi-Carrier
Support
Mobility
Management
Idle Mode
Management
MBS
Self-Organization
Network-entry
Management
Security
management
Connection
Management
Convergence Sublayer
MAC Common Part Sublayer
Sleep Mode
Management
QoS
Scheduling and
Resource
Multiplexing
Multi-Radio
Coexistence
PHY control
Data Forwarding
Interference
management
Ranging
ARQ
Fragmentation/Packing
MAC PDU formation
Link Adaptation
(CQI, HARQ,
power control)
Control
Signaling
Encryption
PHY control signaling
Physical Layer
9
MAC Signaling Flow for IEEE 802.16m End Nodes (BS, MS)
Network Layer
Routing
Multi-Carrier
Support
Self-Organization
Radio Resource
Management
Location
Management
System
configuration
management
Mobility
Management
Idle Mode
Management
MBS
Network entry
management
Security
management
Connection
Management
Convergence Sublayer
MAC Common Part Sublayer
Sleep Mode
Management
QoS
Multi-Radio
Coexitence
Scheduler
ARQ
Fragmentation/Packing
PHY Control
Data Forwarding
Interference
management
Ranging
MAC PDU formation
Link Adaptation
(CQI, HARQ,
power control)
Control Signaling
Encryption
PHY control signaling
Physical Layer
10
IEEE 802.16m Protocol Functions for Intermediate Nodes (RS)
Routing
Radio Resource
Management
Location
management
System
configuration
management
Multi-Carrier
Support
Mobility
Management
Idle Mode
Management
MBS
Self-Organization
Network-entry
Management
Security
management
Connection
Management
MAC Common Part Sublayer
Sleep Mode
Management
QoS
Scheduling and
Resource
Multiplexing
Multi-Radio
Coexistence
ARQ
Fragmentation/Packing
MAC PDU formation
PHY control
Data Forwarding
Interference
management
Ranging
Link Adaptation
(CQI, HARQ, power
control)
Control
Signaling
Encryption
Data Plane
Control Plane
Physical Layer
A RS contains a subset of the above-shown functions. The subset of
functions depend on the RS type/category.
11
Data Flow for IEEE 802.16m Intermediate Nodes (RS)
Routing
Radio Resource
Management
Location
management
System
configuration
management
Multi-Carrier
Support
Mobility
Management
Idle Mode
Management
MBS
Self-Organization
Network-entry
Management
Security
management
Connection
Management
MAC Common Part Sublayer
Sleep Mode
Management
QoS
Scheduling and
Resource
Multiplexing
Multi-Radio
Coexistence
PHY control
Data Forwarding
Interference
management
Ranging
ARQ
Fragmentation/Packing
MAC PDU formation
Link Adaptation
(CQI, HARQ,
power control)
Control
Signaling
Encryption
PHY control signaling
Physical Layer
A RS contains a subset of the above-shown functions. The subset of
functions depend on the RS type/category.
12
MAC Signaling Flow for IEEE 802.16m
Intermediate Nodes (RS)
Routing
Multi-Carrier
Support
Self-Organization
Radio Resource
Management
Location
Management
System
configuration
management
Mobility
Management
Idle Mode
Management
MBS
Network entry
management
Security
management
Connection
Management
MAC Common Part Sublayer
Sleep Mode
Management
QoS
Multi-Radio
Coexitence
Scheduler
ARQ
Fragmentation/Packing
PHY Control
Data Forwarding
Interference
management
Ranging
MAC PDU formation
Link Adaptation
(CQI, HARQ,
power control)
Control Signaling
Encryption
PHY control signaling
Physical Layer
A RS contains a subset of the above-shown functions. The subset of
functions depend on the RS type/category.
13