lte verif framework

8/13/2019 LTE Verif Framework

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3GPP TSG-RAN1#48 R1-07067412th-16thFebruary, 2007St. Lou!, ", $SA

Agenda item: 6

Source: %ra&'e, (h&a "ob)e, *PN, NTT +o(o"o, Sr&t,T-"ob)e, oa/o&e, Te)eo ta)a

Title: LT hy!a) )ayer /raeor /or er/ora&e 5er/ato&

Document for: +e!o&

&trouto&At TSG RAN plenary #33, the LTE study item was closed on the basis of the ains shown from

the LTE system performance when compared with !S"A performance $n order to ensure that

the final LTE system would still be able to reali%e these performance ains, a number of

operators re&uested for a performance 'erification to be performed in the wor( item phase before

completion of the stae 3 wor( )to be presented to the TSG RAN plenary #3* in +une --./

This performance 'erification is necessary to understand if the LTE system desin is on trac( to

meet the LTE system performance demonstrated at the end of the LTE study item, and to

understand whether any additional wor( needs to be done to impro'e the system performance

further to meet the performance tarets

The aim of this document is to propose the scenarios, performance metrics and simulation

assumptions for the 'erification process so that it is both rele'ant and that simulations can be

alined as much as possible 0ompanies are re&uested to pro'ide feedbac( on whether any more

detailed information is needed to allow for simulation alinment between companies

0ompanies with simulation capability are encouraed to contribute to the performance

'erification process usin the detailed information outlined below

Per/ora&e e5a)uato& a!e! a& etr!

$n the followin, we summari%e performance e'aluation cases and the correspondin metricswhich are seen as rele'ant from an operator point of 'iew 1ost of the presented metrics are

directly related to re&uirements in 2 Some other cases and metrics are seen as rele'ant in order

to assess the o'erall LTE performance with respect to operator re&uirements 24-

$n order to simplify comparison of results from different companies, a template for how to report

the results is pro'ided in Appendi5 0

6ocus of all e'aluation cases is 677 Results for T77 can be presented in addition

1) System analysis

The system analysis does not necessarily in'ol'e simulations and aims at assessin the capabilityrelated re&uirements in2 The followin metrics shall be pro'ided8

4a/ "ea( rates


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Typical o'erhead )control channels, pilots, uard inter'al, 9/ shall be estimated for the

operatin point used for calculations and be split into indi'idual items

4b/ 0onnection setup latency )0:plane/

4c/ ;:plane transmission latency

The calculation should include typical !AR< retransmission rates )e -= : 3-=/

4d/ !> latencies )intra:fre&uency, inter:fre&uency and inter RAT/

Support will be as(ed from RAN on the latency calculations in 24? where the detailed

assumptions are i'en

2) Full queue system evaluation

The ob@ecti'e of full &ueue system e'aluation is to assess the LTE performance compared to

Rel* accordin to the re&uirements in 2 especially in terms of throuhput and spectrum

efficiency All metrics shall be pro'ided as absolute fiures and relati'e ains compared to Rel*

Rel* performance shall be pro'ided for comparison

The system e'aluation shall be based on multi:cell system simulations fully capturin the

interference en'ironment Therefore, a realistic load shall be assumed in all cells

4- users )and optionally - users for enhancement techni&ues/ per cell on a'erae and a

homoeneous user distribution shall therefore be assumed as a reference case

1ulti:cell interference shall be e5plicitly modeled )includin fast fadin 1$1> channel/ for a

sufficient number of neihbor cells assumin same antenna confiurationTypical o'erhead )control channels of both lin(s, pilots,9 / shall be estimated for the operatin

point used in the simulations and be split into indi'idual items

Reference cases 4 to ? defined in23shall be e'aluated 0ase 4 and 3 are seen as a minimum

6or LTE, the Spatial 0hannel 1odel 243 S01:0 );rban 1acro, hih spread 23/ shall be

employed This should enable a fair comparison to Rel *, where the Typical ;rban channel

model )with perfect antenna de:correlation, 23 Table A4.:4/ is used

The followin ma5imum output powers can be assumed8

- ? dm for the ;E,

- ?*dm )4-1h%/ and ?3 dm )B 1h%, 4B 1!%/ for the eNode

The followin metrics shall be pro'ided8

a/ A'erae cell throuhput 2bitsCsCcell and spectrum efficiency 2bitsCsC!%Ccell

b/ A'erae user throuhput 2bitsCsCuser and spectrum efficiency 2bitsCsC!%Cuser

c/ B=:tile user throuhput )ie cell ede user throuhput/ 2bitsCsCuser and spectrum

efficiency 2bitsCsC!%Cuser


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The followin additional information shall be pro'ided in order to enable comparison of absolute

'alues amon different results of different companies and understand potential differences8

d/ ;ser throuhput 076 normali%ed by the a'erae user throuhput for fairness chec( shall

be pro'ided at least for the 4- user case

e/ 6or 7L8 076 of usersD eometries

f/ 6or ;L8 076 of userDs interference o'er thermal noise This 076 depends on the power

control scheme and thus also characteri%es the power control alorithm used

Note that a calibration case is also pro'ided for uplin( and downlin(

3) System evaluation with realistic traffic models

$n addition to the full &ueue case, simulations with realistic traffic models shall be pro'ided in

order to assess the LTE performance under typical traffic and load conditions

An emphasis is put on o$", where initial results were already pro'ided in 23!owe'er, also

the mi5ed traffic case is seen as rele'ant23,24-

VoIP capacity evaluation

System e'aluation is based on multi:cell system simulations as outlined in case / employin the

o$" traffic model )see Appendi5 A/

Typical o'erhead )control channels of both lin(s, pilots,9 / shall be estimated for the operatin

point used in the simulations and be split into indi'idual items

The system bandwidth for o$" simulations is reduced to B 1!% for all cases and the baseline

o'erhead assumed in the simulations shall be scaled accordinly The Typical ;rban channel

model shall be used for this case

27ifferent schedulin policy and !AR< operation may be assumed dependin on RAN

decision, to be clarified at RAN4#?F

The baseline assumption is that bundlin is not used for o$" pac(ets !owe'er, bundlin can be

considered as an enhancement techni&ue

The followin metric shall be pro'ided8

3a/ o$" capacity in form of the ma5imum number of satisfied users supported per cell )see

satisfied user criterion in Appendi5 A/ in downlin( and uplin(

Other traffic models and traffic mi

System e'aluations with other traffic models )such as !TT", 6T", amin, 'ideo conferencin,

and streamin models outlined in 23 and 24-/ and areate ser'ice mi5 pro'ided in

Appendi5 should be considered for future e'aluation, howe'er this is N>T re&uired to be done

as part of the current performance 'erification proposal within 3G""


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!) "#SF$ transmission evaluation

System e'aluations based on multi:cell simulations for S6N )Sinle 6re&uency Networ(/

transmission of an 11S ser'ice on a dedicated carrier

The deployment scenarios considered fro these e'aluations are deri'ed from the unicast cases

defined in 23 Especially case 4 and case ? )with 4- 1!% system bandwidth/ shall be e'aluatedThe same transmit powers and antenna heihts as for unicast shall be assumed for the baseline

simulations E'aluations with modified parameters especially concernin the antenna heihts and

propaation models shall be considered as specific cases

A deployment similar to unicast )!e5aonal rid, 4 cell sites, 3 sectors per site 23/ shall be

e'aluated with all sites participatin to the 1S6N The nominal co'erae area for e'aluation

corresponds to the 3 sectors of the center site and the first tier of surroundin sectors oth

numeroloies )4B (!% and .B (!% sub:carrier spacin/ may be used where appropriate

The followin metrics shall be pro'ided8

?a/ System throuhput 2bitsCs and spectrum efficiency 2bitsCsC!% assumin a co'erae of B=

of the 1S6N area )ie B= of locations in nominal 1S6N co'erae area e5perience

"ER of 4= or reater /

?b/ 1a5imum $S7 assumin a system throuhput of 4 bitCsC!% accordin to the abo'e

criterion

+o&)& o&/'urato&

The downlin( system confiuration described below contains a baseline confiuration that shallbe e'aluated by all companies as a reference case Se'eral specific techni&ues of particular

interest are listed which shall be e'aluated to clarify their additional ain compared to the

baseline

The downlin( confiurations are separately listed for unicast and 1S6N

%& 'nicast transmission

1) Specific techniques to (e evaluated

- $nterference coordination

o Reuse other than 4

o Semi:static interference co:ordination

- $nter:cell interference cancellation

o $nterference 0ancellation

- 1$1>

o Ad'anced antenna confiurations8 ? 5 , ? 5 ?

o eamformin )ad'anced antenna confiuration and spacin, to be described/

- Synchronised networ( for unicast can be assumed and e5ploited as a specific case


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2) #aseline downlin confi*uration

- Node scheduler

o Schedulin in time, fre&uency and space can be assumed ;sed 0


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o asic scheme8 Static 6ractional 6re&uency Reuse

o Reuse 4 is baseline

- "ower control

o No power control for data channels for best effort simulations

o "ower control can be assumed for control channels in all simulations and for data

channels in o$" simulations

- $nter:cell interference cancellation

o $nterference Re@ection 0ombinin at ;E24

- aseline confiuration assumes asynchronous networ( )ie properties of synchronous

networ( cannot be e5ploited/

All other basic transmission parameters )e TT$ lenth, 1odulation, Resource bloc( si%e,

reference sinal structure, channel codin/ shall follow the specifications in 2B

The followin items shall also be considered in the system e'aluation

- 0ontrol channels can be assumed error free for R* reference case and the LTEbaseline !owe'er, modelin and analysis of control channel errors )A0CNA0, 0671 symbols ofeach sub:frame "ilot positions in remainin >671 symbols are to be considered in

addition

- A recei'er noise floor shall be assumed, ie a ma5 0C$ limit of d

#& #aseline downlin confi*uration for "#SF$ +ransmission

- Synchronised networ(

- 1$1>

o Reference antenna confiuration8 45

o Specific techni&ues assumin a 5 confiuration can be considered in addition

o 0hannel estimation )pilot density/ J shall be modeled or at least calculations showin

the impact should be presented


7/21



$)& o&/'urato&

The uplin( system confiuration described below contains a baseline confiuration that shall bee'aluated by all companies as a reference case Additionally se'eral specific techni&ues of

particular interest are listed which can be e'aluated dependin on companies interest and

simulation capabilities

1) Specific techniques to (e evaluated


o Semi:static interference co:ordination

- 1$1>

o 1; 1$1> to be used for ;L o$"

o ? recei'e antennas at eNode and ? user 1;:1$1>

o Antenna selection

: S;:1$1>

o 1a5imum ran( )adapti'e/

o "re:codin can be assumed feedbac( has to be described

o L11SE is baseline )S$0 can be used in addition/

o and ? recei'e antennas at eNode

: 0losed Loop transmit di'ersity

o transmit antennas and )and ?/ recei'e antennas at eNode

: >pen Loop transmit di'ersity

o transmit antennas and )and ?/ recei'e antennas at eNode

- Synchronised networ( for unicast can be assumed and e5ploited as a specific case

2) #asic uplin confi*uration

The followin techni&ues shall be included in all system simulations as basic confiuration

- Node scheduler

o Schedulin in time, fre&uency and space can be assumed ;sed 0


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- Lin( adaptation

o 10S table and resolution

o Bbits H 3 'alues,

o I4 d resolution from J4- to 4. d

o 7etails on lin(:to:system interface includin AKGN lin(:le'el cur'es shall be

presented )assumin EES1 or 1$ES1 based S$NR mappin 244/

- !AR and di'ersity

o Antenna confiuration8

o 45 in all cases

o 4- lambda antenna spacin at eNode

o Recei'e di'ersity and 1;:1$1> )with ma5imum users/ shall be considered as

separate cases


o asic scheme8 Static 6ractional 6re&uency Reuse

o Reuse 4 is baseline

- "ower control

o 0losed loop slow power control )update rate of -- !%/ 2areed power control

scheme in RAN4#?F

o Specify if and what (nowlede from other cells is used

- aseline confiuration assumes asynchronous networ( )ie properties of synchronousnetwor( cannot be e5ploited/



The followin items should also be considered in the system e'aluation

- 0ontrol channels can be assumed error free for R* reference case and the LTEbaseline !owe'er, modelin and analysis of control channel errors )A0CNA0,

and L4CL sinalin/ is seen as hihly desirable and should be done where'er

possible

- A "ower control delay of ? ms shall be assumed )related to 0


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- aseline out of band control channel o'erhead in uplin( spans F Rs )ie * sub:carrriers with ? RDs on each side of the system bandwidth/

- L per sub:frame are assumed as pilot o'erhead for demodulation Soundin pilotshall be modelled and described where'er applicable

- A recei'er noise floor shall be assumed, ie a ma5 0C$ limit of 4. d

Re/ere&e!

24 R":-*-F3 ;pdated LTE Kor(plan

2 3G"" RAN TR B438 MRe&uirements for E'ol'ed ;TRA )E:;TRA/ and E'ol'ed ;TRAN

)E:;TRAN/, )Release ./, '.3-, 1arch --*

23 3G"" RAN KG4 TR BF4?, M"hysical Layer Aspects for E'ol'ed ;TRA, )Release ./,

.4-, September --*

2? 3G"" RAN TS 3*-48 OLTE "hysical Layer : General 7escriptionO, as of 6ebruary --.

2B 3G"" RAN TS 3*448 O"hysical 0hannels and 1odulationO, as of 6ebruary --.

2* 3G"" RAN TS 3*48 O1ultiple5in and channel codinO, as of 6ebruary --.

2. 3G"" RAN TS 3*438 O"hysical Layer J "roceduresO, as of 6ebruary --.

2F 3G"" RAN TS3*4?8 "hysical layer J 1easurementsO, as of 6ebruary --.

2 R4:-*?B,O Summary of downlin( enhancement techni&ues o'er reference LTE unicast

performance,O odafone, >rane, Ericsson, Te5as $nstruments, Siemens, Alcatel, Sprint,

1otorola, No(ia, T:1obile, $"Kireless, 3, RAN4#?*, Tallinn, Estonia, September --*

24- NG1N, DNe5t Generation 1obile Networ(s eyond !S"A P E7> J A white paperD,3-, 7ecember --*, a'ailable at http8CCwwwnmn:cooperationcomC

244 rueninhaus et al, MLin( "erformance 1odels for System Le'el Simulations of

roadband radio Access Systems, in proceedins of $EEE "$1R0 --B

24 + ! Kinters, M>ptimum 0ombinin in 7iital 1obile Radio with 0ochannel

$nterference, in $EEE +ournal on Selected Areas in 0ommunications, ol SA0:, No ?,

+uly 4F?

243 3G"" RAN TRB*8 OSpatial 0hannel 1odel for 1$1> simulationsO, '*4-, September

--3

24? R:-.5555, OLTE System Analysis of 0:"laneC;:"lane latencyO, odafone et al,RAN#B.

Ae& A oP

Satisfied user criterion

A o$" user is in outae )not satisfied/ if F= radio interface tail latency of this user is reater

than B- ms This assumes an end:to:end delay below -- ms for mobile:to:mobile

communicationsThe system capacity is defined as the number of users in the cell when more than B= of the

users are satisfied
http://www.ngmn-cooperation.com/http://www.ngmn-cooperation.com/


10/21

Erasure rate for consecuti'e full rate A1R 'oice frames is proposed to be 2less than --B= to be

defined by SA? )to account for bundled 'oice pac(et losses/ undlin is considered as an

enhancement techni&ue and the outae criterion used should be detailed for such e'aluations

"ain parameters of the traffic model

The followin table pro'ides the rele'ant parameters of the o$" traffic that shall be assumed in

the simulations The details of the correspondin traffic model are described below8

Parameter Characterization

,odec RT" A1R 4,

Source rate 4 (bps

-ncoder frame len*th - msVoice activity factor .V%F) B-= )cH--4, dH-/

SI/ payload 1odelled

4B bytes )Bytes Q header/

S$7 pac(et e'ery 4*-ms durin silence

Protocol Overhead with

compressed header

4- bit Q paddin )RT":pre:header/

?yte )RT"C;7"C$"/

yte )RL0Csecurity/

4* bits )0R0/

+otal voice payload on air

interface

?-bytes )A1R 4/

/etailed description of the VoIP traffic model

Basic Model

0onsider the simple :state 'oice acti'ity model shown in6iure 44

Fi*ure 1 0 2state voice activity model&

1 Clearly, a 2-state model is extremely simplistic, and many more complex models are

available. However, it is amenable to rapid analysis and initial estimation of talk spurt arrival

statistics and hence reservation activity.


11/21

$n the model, the probability of transitionin from state 4 )the acti'e speech state/ to state - )the

inacti'e or silent state/ while in state 4 is e&ual to a , while the probability of transitionin from

state - to state 4 while in state - is c The model is assumed updated at the speech encoder frame

rate 4CR T= , where T is the encoder frame duration )typically, -ms/

Model StatisticsThe steady:state e&uilibrium of the model re&uires that

-

4

aP

a c

cP

a c

=

+

=

+

where -P and 4P are respecti'ely the probability of bein in state - and state 4

The oice Acti'ity 6actor )A6/ is i'en by

4cP

a c = =

+

A tal(:spurt is defined as the time period TS between enterin the acti'e state )state 4/ and

lea'in the acti'e state The probability that a tal( spurt has duration n speech frames is i'en

by

4) / )4 / 4, ,TS

nn TSP P n a a n

= = =@ L

0orrespondinly, the probability that a silence period has duration n speech frames is i'en by

4) / )4 / 4,,SP

nn SPP P n c c n

= = =@ L

The mean tal( spurt duration TS )in speech frames/ is i'en by

42 TS TS E

a = =

while the mean silence period duration SP )in speech frames/ is i'en by

42 SP SP E

c = =

The distribution of the time period AE )in speech frames/ between successi'e acti'e state entries

is the con'olution of the distributions of SP and TS This is i'en by

4 4) / )4 / )4 / 4,,

AE

n nn AE

c aP P n a a c c n

c a a c

= = + =

@ L

Note that AE can be used as a crude uide to the time between 1A0 layer resource reser'ations,

pro'ided a sinle reser'ation is made per user per tal(:spurt Note that in practice, 'ery small

'alues of AE miht not lead to a separate reser'ation re&uest, but e&uation still offers some

potentially useful uidance

Since the state transitions from state 4 to state - and 'ice 'ersa are independent, the mean time

AE between acti'e state entries is i'en simply by the sum of the mean time in each state Thatis


12/21

AE TS SP = +

Accordinly, the mean rate of arri'al AER of transitions into the acti'e state is i'en by

4AE

AE

R

=

Example

As a simple e5ample, consider the case where the speech encoder frame duration -T ms=

6urther assume a desired A6 of *-= ) -* = /, and a desired mean tal( spurt duration of Bs

Accordinly, from e&uation , 4C B Ca T= and so --?a = 6urther, from e&uation ,C)4 / ---*c a = =

6or these parameters, the resultin theoretical and simulated distributions of the tal( spurt

duration ) TS , in seconds/, silence period duration ) SP , in seconds/, and time between acti'e

state entry ) AE , in seconds/ appear in 6iure

The mean tal( spurt duration is i'en by 4C B-TS a = = frames, or Bs 0orrespondinly, the

mean silence period duration is 4C 4***.SP c = = frames, or 333s The resultin mean time

between acti'e state entry is then F33s, and so the mean rate of arri'al of tal( spurts is

4 C F33 -4AER = = tal( spurts per second

0 5 10 15 20 25 30 35 40 45 500

2

4

6x 10

-3

E = Active State Occupancy Duration (s)

P[E=

A

ctiveState]

Sim.

Theory

0 5 10 15 20 25 30 350

2

4

6

8x 10

-3

E = Silence State Occupancy Duration

P[E=

SilenceState]

Sim.

Theory

0 5 10 15 20 25 30 35 40 45 500

1

2

3x 10

-3

E = Active State Re-Entry IntervalP[E=

ActiveStateRe-Entry]

Sim.

Theory

Fi*ure 2 0 State duration and entry distri(utions 0 theory and simulation&


13/21

Ae& other tra// oe)! a& tra//

This appendi5 pro'ides traffic models for further e'aluations and a typical scenario for a traffic

mi5 in the followin table8

Application Traffic Category Percentage of

Users

F+P est effort 4- =

e( #rowsin* 4++P $nteracti'e - =

Video Streamin* Streamin - =

VoIP Real:time 3- =

5amin* $nteracti'e real:time - =

The traffic models outlined in 23 and detailed below for con'enience )e best effort J 6T",

!TT"


14/21

"768( )

-,

4

ln

>=

xex

f

x

x

, ?B#4?,3B#- ==

ReadinTime 7

E5ponential 7istribution

1eanH4F- seconds

"768 -, = xef xx

, --*#-=

6T" Traffic "arameters

Interactive +raffic6 e((rowsin* usin* 4++P

A web:pae consists of a main ob@ect and embedded ob@ects )e pictures, ad'ertisements etc/

After recei'in the main pae, the web:browser will parse for the embedded ob@ects The main

parameters to characteri%e web:browsin are8

The main si%e of an ob@ect SM

The si%e of an embedded ob@ect in a pae SE

The number of embedded ob@ectsND

Readin timeD

"arsin Time for the min pae TP

"arameter Statistical 0haracteri%ation

1ain >b@ect

Si%e S1

Truncated Lonormal 7istribution

1eanH4-.4- ytes, Standard 7e'iationHB-3 ytes, 1inimumH4-- ytes,

1a5imumH 1bytes )efore Truncation/

"768( )

-,

4

ln

>=

xex

f

x

x

, 3.#F,3.#4 ==

Embedded

>b@ect Si%e

SE

Truncated Lonormal 7istribution

1eanH..BF ytes, Standard 7e'iationH4*4*F ytes, 1inimumHB- ytes,

1a5imumH 1bytes )efore Truncation/

"768( )

-,

4

ln

>=

xex

f

x

x

, 4.#*,3*# ==

Number of

Embedded

>b@ects per"ae HN7

Truncated "areto 7istribution

1eanHB*?, 1a5imumHB3 )efore Truncation/


15/21

"768 mxkf kx


16/21

Interactive 7eal+ime Services6 5amin*


$nitial pac(et

arri'al

;niform 7istribution

bxaab

fx

= ,4

, msba ?-,- ==

"ac(et arri'al 7eterministic, ?- ms

"ac(et si%e Larest E5treme alue 7istribution )also (nown as 6isher:Tippett distribution/

b

ax

eb

ax

x eeb

f

=4

, .#B,?B == bBytesa

alues for this distribution can be enerated by the followin procedure8

( )ybax lnln = , where y is drawn from a uniform distribution in the rane[ ]4,-

ecause pac(et si%e has to be inteer number of bytes, the larest inteer less

than or e&ual to 5 is used as the actual pac(et si%e

;7" header 7eterministic ) ytes/ This is added to the pac(et si%e accountin for the;7" header after header compression

;plin( Gamin Networ( Traffic "arameters

To simulate the random timin relationship between client traffic pac(et arri'al and uplin( frame

boundary, the startin time of a networ( amin mobile is uniformly distributed within 2-,?-

ms

A ma5imum delay of 4*- ms is applied to all uplin( pac(ets, ie a pac(et is dropped by the

mobile station if any part of the pac(et has not started physical layer transmission, includin

!AR< operation, 4*- ms after enterin the mobile station buffer The pac(et delay of a dropped

pac(et is counted as 4F- ms

A mobile networ( amin user is in outae if the a'erae pac(et delay is reater than *- ms The

a'erae delay is the a'erae of the delays of all pac(ets, includin the delay of pac(ets deli'ered

and the delay of pac(ets dropped


$nitial

pac(et

arri'al

;niform 7istribution

"768 bxaabfx

= ,

4

, msba ?-,- ==


17/21

"ac(et

arri'al

Larest E5treme alue 7istribution )also (nown as 6isher:Tippett distribution/

"768b

ax

eb

ax

x ee

b

f

=4

, *,BB == bmsa

alues for this distribution can be enerated by the followin procedure8

( )ybax lnln= , where y is drawn from a uniform distribution in the rane[ ]4,-

"ac(et si%e Larest E5treme alue 7istribution )also (nown as 6isher:Tippett distribution/

3*,4- == bBytesa

;7" header 7eterministic ) ytes/ This is added to the pac(et si%e accountin for the;7" header after header compression

7ownlin( Gamin Networ( Traffic "arameters

Ae& ( 9 Te)ate /or Reort&' Re!u)t!

Results should be reported in the format e5emplified in Tables 4:B and 6iures 4:? below Khere applicable, one

table and fiure per simulation case should be pro'ided 1odels and assumptions should be alined with those listedin this paper and Anne5 A in TR BF4?, and summari%ed as outlined in Table * Any de'iations should be

hihlihted Lin( le'el results should be presented as in 6iure B

Table 4 System Analysis Results

"etric 1a) Pea 7ate 1() ,plane latency 1c) 'plane delay 1d) 4O delay

-'+7% /8 1bps ms U ms K ms

-'+7% '8

Table 7ownlin( full &ueue system e'aluation Note8 results are e5amples

"etric 2a) %v* cell throu*hput and

spectrum efficiency . 7el 9)

2() %v* user throu*hput and

spectrum efficiency

2c) ,elled*e user

throu*hput and spectrum

efficiency

7el 9 .:"4;) 3 1bps-* bpsC!%Ccell )4-/

-3 1bps,--* bpsC!%Cuser )4-/

-4 1bps,-- bpsC!%Cuser )4-/

-'+7% (aseline

S'"I"O

- 1bps bpsC!%Ccell )33/

1bps,- bpsC!%Cuser )33/

-* 1bps,--* bpsC!%Cuser )3-/

-'+7% (aseline

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