-
Frame Structure for multi-hop relay and Postamble for relay
link
IEEE 802.16 Presentation Submission Template (Rev. 8.3)Document
Number:
IEEE S802.16j-07/135Date Submitted:
2007-01-16Source:
Changyoon Oh, Youngbin Chang, Hyunjeong Kang, Sungjin Lee,
Mihyun Lee,Hyoung Kyu Lim, Jaeweon Cho, Panyuh JooVoice:
+82-31-279-7529
Samsung Electronics Co., Ltd. Fax: +82-31-279-5130416 Maetan-3,
Suwon, 442-600, Korea E-mail: [email protected]
Rakesh TaoriSamsung Advanced Institute of TechnologyC.P.O. Box
1142, Seoul, 100-611, Korea
Venue:IEEE 802.16 Session #47, London, U.K.
Base Document:C80216j-07/135, C80216j-07/136
Purpose:The purpose of this slide is to support proposed frame
structure for multi-hop relay and postamble for relay link.
Notice:This document has been prepared to assist IEEE 802.16. It
is offered as a basis for discussion and is not binding on the
contributing individual(s) or organization(s). The material in this
document is subject to change in form and content after further
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withdraw material contained herein.
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Frame structure for multi-hop relay and postamble for relay
link:
#07/135, #07/136
ChangyoonChangyoon Oh, Oh, YoungbinYoungbin Chang, Chang,
HyunjeongHyunjeong Kang, Kang, SungjinSungjin Lee, Lee,
MihyunMihyun Lee, Lee, HyoungHyoung KyuKyu Lim, Lim, JaeweonJaeweon
Cho, Cho,
Panyuh JooPanyuh Joo
Samsung Electronics Co., Ltd.Samsung Electronics Co., Ltd.
Rakesh TaoriRakesh Taori
Samsung Advanced Institute of TechnologySamsung Advanced
Institute of Technology
January, 2007
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Outline
Frame Structure for Multi-hop relay
• Postamble for the relay link
• Summary
1
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4
Frame structure for multi-hop relay
#07/135
-
Frame structure for multi-hop relayGeneralized frame
structure
Exactly follows the text that is agreed in the November
meeting
With signaling and scheduling, configuration of some example
frame structures can be derived
Minimum configuration of frame structureMinimum configuration of
frame structure
Aligned with Figure 218 (802.16e) in the level of detailAligned
with Figure 218 (802.16e) in the level of detail
Same level of frame structure is providedSame level of frame
structure is provided
Term changeTerm change
Access/Relay Access/Relay zonezone => Access/Relay =>
Access/Relay intervalinterval
To avoid confusion with existing term in 802.16eTo avoid
confusion with existing term in 802.16e
In the generalized frame structure, In the generalized frame
structure,
The first access interval shall include preamble, FCH, DL(UL)The
first access interval shall include preamble, FCH,
DL(UL)--MAPMAP
The additional access interval shall not include The additional
access interval shall not include
preamble,FCH,DL(ULpreamble,FCH,DL(UL))--MAPMAP
2
-
Generalized Frame Structure (GFS)
5With signaling and scheduling, GFS can support various
configuraWith signaling and scheduling, GFS can support various
configurationstions
-
Configuration #1 from GFS
DL Sub-frame UL Sub-frame
Prea
mbl
e
MR-
BS F
ram
ew
ith M
ultip
le
Inte
rval
DL R
elay
In
terv
al
DL
Acc
ess
Inte
rval
UL R
elay
In
terv
al
UL
Acc
ess
Inte
rval
1st h
op
RS
Fram
ew
ith M
ultip
le
Inte
rval
2nd
hop
RS F
ram
ew
ith M
ultip
le
Inte
rval
DL Access Interval or DL relay Interval
Prea
mbl
e
DL
Rel
ay
Inte
rval
(Rx)
DL
Acce
ss
Inte
rval
UL
Rel
ay
Inte
rval
(Tx)
UL
Acce
ss
Inte
rval
Prea
mbl
e
DL
Acce
ss
Inte
rval
UL
Acce
ss
Inte
rval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
UL Access Interval or UL relay Interval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
UL Access Interval or UL relay IntervalDL Access Interval or DL
relay Interval
Region 1
Region 1
Region 2
Region 2
Region 2
Region 2Region 1
Region 1
Region 1 Region 1 Region 2Region 2Region 3 Region 3
DL R
elay
In
terv
al (T
x)D
L R
elay
In
terv
al (R
x)
UL R
elay
In
terv
al(R
x)
UL R
elay
In
terv
al(T
x)
5
11stst hop RS enables region 1 for relay intervalhop RS enables
region 1 for relay interval22ndnd hop RS enables region 1 for relay
interval hop RS enables region 1 for relay interval
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5
DL Sub-frame UL Sub-frame
Prea
mbl
e
MR-
BS F
ram
ew
ith M
ultip
le
Inte
rval
DL R
elay
In
terv
al
DL
Acc
ess
Inte
rval
UL R
elay
In
terv
al
UL
Acc
ess
Inte
rval
1st h
op
RS
Fram
ew
ith M
ultip
le
Inte
rval
2nd
hop
RS F
ram
ew
ith M
ultip
le
Inte
rval
DL Access Interval or DL relay Interval
Prea
mbl
e
DL
Rel
ay
Inte
rval
(Rx)
DL
Acce
ss
Inte
rval
UL
Rel
ay
Inte
rval
(Tx)
UL
Acce
ss
Inte
rval
Prea
mbl
e
DL
Acce
ss
Inte
rval
UL
Acce
ss
Inte
rval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
UL Access Interval or UL relay Interval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
UL Access Interval or UL relay IntervalDL Access Interval or DL
relay Interval
Region 1
Region 1
Region 2
Region 2
Region 2
Region 2Region 1
Region 1
Region 1 Region 1 Region 2Region 2Region 3 Region 3
DL
Rel
ay
Inte
rval
(Tx)
DL
Rel
ay
Inte
rval
(Rx)
UL
Rel
ay
Inte
rval
(Rx)
UL
Rel
ay
Inte
rval
(Tx)
Configuration #2 from GFS
11stst hop RS enables region 2 for relay intervalhop RS enables
region 2 for relay interval22ndnd hop RS enables region 2 for relay
interval hop RS enables region 2 for relay interval
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Configuration #3 from GFS
5
DL Sub-frame UL Sub-frame
Prea
mbl
e
MR-
BS F
ram
ew
ith M
ultip
le
Inte
rval
DL R
elay
In
terv
al
DL
Acc
ess
Inte
rval
UL R
elay
In
terv
al
UL
Acc
ess
Inte
rval
1st h
op
RS
Fram
ew
ith M
ultip
le
Inte
rval
2nd
hop
RS F
ram
ew
ith M
ultip
le
Inte
rval
DL Access Interval or DL relay Interval
Prea
mbl
e
DL
Rel
ay
Inte
rval
(Rx)
DL
Acce
ss
Inte
rval
UL
Rel
ay
Inte
rval
(Tx)
UL
Acce
ss
Inte
rval
Prea
mbl
e
DL
Acce
ss
Inte
rval
UL
Acce
ss
Inte
rval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
UL Access Interval or UL relay Interval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
UL Access Interval or UL relay IntervalDL Access Interval or DL
relay Interval
Region 1
Region 1
Region 2
Region 2
Region 2
Region 2Region 1
Region 1
Region 1 Region 1 Region 2Region 2Region 3 Region 3
DL
Rel
ay
Inte
rval
(Tx)
DL
Rel
ay
Inte
rval
(Rx)
UL
Rel
ay
Inte
rval
(Rx)
UL
Rel
ay
Inte
rval
(Tx)
11stst hop RS enables region 2 for relay interval and access
intervalhop RS enables region 2 for relay interval and access
interval22ndnd hop RS enables region 2 for relay interval and
access intervalhop RS enables region 2 for relay interval and
access interval
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Configuration #4 of GFS
5
(J) th Frame (J+1)th Frame
DL Subframe DL SubframeUL Subframe UL Subframe
DL Sub-frame UL Sub-frame
Prea
mbl
e
MR
-BS
Fra
me
with
Mul
tiple
In
terv
al
DL R
elay
In
terv
al
DL
Acce
ss
Inte
rval
UL R
elay
In
terv
al
UL
Acce
ss
Inte
rval
1st h
op
RS
Fram
ew
ith M
ultip
le
Inte
rval
2nd
hop
RS
Fram
ew
ith M
ultip
le
Inte
rval
DL Access Interval or DL relay Interval
Prea
mbl
e
DL
Rel
ay
Inte
rval
(Rx)
DL
Acce
ss
Inte
rval
UL
Rel
ay
Inte
rval
(Tx)
UL
Acce
ss
Inte
rval
Pre
ambl
e
DL
Acc
ess
Inte
rval
UL
Acc
ess
Inte
rval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
UL Access Interval or UL relay Interval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
DL Access Interval or DL relay Interval
UL Access Interval or UL relay Interval
UL Access Interval or UL relay IntervalDL Access Interval or DL
relay Interval
Region 1
Region 1
Region 2
Region 2
Region 2
Region 2Region 1
Region 1
Region 1 Region 1 Region 2Region 2Region 3 Region 3
DL R
elay
In
terv
al (T
x)D
L R
elay
In
terv
al (R
x)
UL R
elay
In
terv
al(R
x)
UL R
elay
In
terv
al(T
x)
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Minimum Configuration of the inbandframe structure
5
Pre
ambl
eP
ream
ble
MR
-BS
Fram
eR
S Fr
ame
--PreviousPrevious--(High level) (High level)
--ProposedProposed--(Same level as Figure 218 in 802.16e) (Same
level as Figure 218 in 802.16e)
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Postamble for the relay link#07/136
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Amble for the relay link
Time Aligned amble location Time Aligned amble location
Synchronization for the relay link
Neighbor scanning
Flexible relay zoneTo support Load balancing (access zone/relay
zone)
Postamble can support flexible access/relay zone
2
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Amble location for the relay link-Postamble-
2
Relay link
Access link
Acces
s link
Access linkRel
ay link
Acce
ss lin
k
Access link
Access
link
Both flexibility and time alignment can be satisfiedBoth
flexibility and time alignment can be satisfied
BS1→MS01(Tx.)
BS1→RS1(Tx.)
MS01→BS1(Rx.)
RS1→BS1(Rx.)
RS1→MS1(Tx.)
BS1→RS1(Rx.)
MS1→RS1(Rx.)
RS1→BS1(Tx.)
frame DL subframe UL subframe
TTG
Access Zone
Access Zone Relay Zone
BS2→MS02(Tx.)
BS→RS1(Tx.)
MS02→BS2(Rx.)
RS2→BS2(Rx.)
RS2→MS2(Tx.)
BS2→RS2(Rx.)
MS2→RS2(Rx.)
RS2→BS2(Tx.)
frame DL subframe UL subframe
TTG
Access Zone
Access Zone Relay Zone
BS1
RS1
BS2
RS2
ambLe
ambLe
-
Amble location for the relay link-Preamble-
2Both flexibility and time alignment can Both flexibility and
time alignment can notnot be satisfied be satisfied
simultaneouslysimultaneously
BS1→MS01(Tx.)
BS1→RS1(Tx.)
MS01→BS1(Rx.)
RS1→BS1(Rx.)
RS1→MS1(Tx.)
BS1→RS1(Rx.)
MS1→RS1(Rx.)
RS1→BS1(Tx.)
frame DL subframe UL subframe
TTG
Access Zone
Access Zone Relay Zone
BS2→MS02
(Tx.)
BS→RS1(Tx.)
MS02→BS2(Rx.)
RS2→BS2(Rx.)
RS2→MS2(Tx.)
BS2→RS2(Rx.)
MS2→RS2(Rx.)
RS2→BS2(Tx.)
frame DL subframe UL subframe
TTG
Access Zone
Access Zone Relay Zone
BS1
RS1
BS2
RS2
ambLe
ambLe
--flexibility is satisfiedflexibility is satisfiedHowever, time
alignment is However, time alignment is not not
satisfiedsatisfied--
--time alignment is satisfiedtime alignment is satisfiedHowever,
flexibility is However, flexibility is notnot
satisfiedsatisfied--
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Amble location for the relay link-Postamble-
2Both flexibility and time alignment can be satisfied
simultaneoBoth flexibility and time alignment can be satisfied
simultaneouslyusly
-
Amble location for the relay link-Preamble-
2Both flexibility and time alignment can Both flexibility and
time alignment can notnot be satisfied be satisfied
simultaneouslysimultaneously
BS1→MS01(Tx.)
BS1→RS1(Tx.)
MS01→BS1(Rx.)
RS1→BS1(Rx.)
RS1→MS1(Tx.)
RS1→RS3(Tx.)
MS1→RS1(Rx.)
RS1→BS1(Tx.)
frame DL subframe UL subframe
TTG
BS1
RS1
BS2
RS2
ambLe
RS3RS3→MS3(Tx.)
RS3 →RS6(Tx.)
MS2→RS11(Rx.)
RS6→RS3(Rx.)
BS1→RS1(Rx.)
RS1→RS3(Rx.)
ambLe
BS2→MS02(Tx.)
BS2→RS2(Tx.)
MS02→BS2(Rx.)
RS2→BS2(Rx.)
RS2→MS2(Tx.)
RS2→RS4(Tx.)
MS2→RS2(Rx.)
RS2→BS2(Tx.)
frame DL subframe UL subframe
TTGambLe
RS4→MS4(Tx.)
RS4 →RS7(Tx.)
MS4→RS4(Rx.)
RS7→RS4(Rx.)
BS2→RS2(Rx.)
RS2→RS4(Rx.)
ambLe
RS4
RS3→RS1(Rx.)
RS3→RS1(Tx.)
RS4→
RS2(Rx.)
RS4→
RS2(Tx.)
--flexibility is satisfiedflexibility is satisfiedHowever, time
alignment is However, time alignment is notnot
satisfiedsatisfied--
--time alignment is satisfiedtime alignment is
satisfiedHHowever, flexibility is owever, flexibility is notnot
satisfiedsatisfied--
BS1→MS01(Tx.)
BS1→RS1(Tx.)
MS01→BS1(Rx.)
RS1→BS1(Rx.)
RS1→MS1(Tx.)
RS1→RS3(Tx.)
MS1→RS1(Rx.)
RS1→BS1(Tx.)
frame DL subframe UL subframe
TTG
BS1
RS1
BS2
RS2
ambLe
RS3RS3→MS3(Tx.)
RS3 →RS6(Tx.)
MS2→RS11(Rx.)
RS6→RS3(Rx.)
BS1→RS1(Rx.)
RS1→RS3(Rx.)
ambLe
BS2→MS02(Tx.)
BS2→RS2(Tx.)
MS02→BS2(Rx.)
RS2→BS2(Rx.)
RS2→MS2(Tx.)
RS2→RS4(Tx.)
MS2→RS2(Rx.)
RS2→BS2(Tx.)
frame DL subframe UL subframe
TTGambLe
RS4→MS4(Tx.)
RS4 →RS7(Tx.)
MS4→RS4(Rx.)
RS7→RS4(Rx.)
BS2→RS2(Rx.)
RS2→RS4(Rx.)
ambLe
RS4
RS3→RS1(Rx.)
RS3→RS1(Tx.)
RS4→
RS2(Rx.)
RS4→
RS2(Tx.)
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Performance Result-Load Balancing-
5
DL DL SubframeSubframe
DL Access ZoneDL Access Zone DL Relay ZoneDL Relay Zone
Flexible BoundaryFlexible BoundarySStep size: 1 OFDMA symboltep
size: 1 OFDMA symbol
1 frame: 42 OFDMA symbols1 frame: 42 OFDMA symbolsDL DL
subframesubframe: UL : UL subframesubframe=27:15 =27:15
UL UL SubframeSubframe
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Load Balancing (Simulation Parameter)
5
Ethernet model (Average rate ~100kbps)Arrival process: Pareto
distribution(a=1.3)Average packet size=2944.8bits
Traffic model
Round RobinScheduling
3km/hMobile speed
Path-loss: NLOS (Winner model), Shadow fading: 8dBMulti-path
fading: ITU-R Pedestrian A model
Channel model(BS-MS link/RS-MS link)
Path-loss: LOS(Winner model), Shadow fading:3.4dBChannel
model(BS-RS link)
10WRS Power
20WBS Power
6 Fixed RS per cell, 2/3 position from MR-BSRS configuration
No (omni antenna)Sectorization
1kmCell radius
10 cells-wrap aroundCell layout
10MHzBandwidth
2.3GHzFrequency Band
-
Cell Throughput Comparison(No Load Balancing (No LB) vs. Load
Balancing(LB)
5
6.4
6.6
6.8
7
7.2
7.4
7.6
7.8
8
8.2
8.4
thro
ug
hp
ut
(Mb
it/s
)
No LB LB
14%14%
Number of users in a cell: 100Number of users in a cell: 100
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Frame Structure for multi-hop relay
Generalized frame structure
Supports various multi-hop frame structure configurations
Detailed minimum configuration of frame structure
Term change: zone => interval
The first access interval shall include preamble, FCH, DL(UL)
MAP
Postamble for the relay link
Time aligned amble location
Postamble supports both time alignment and flexibility of
resource
allocation between access and relay intervals.
Summary
20