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 Dr. Helmut Schäffer ICM N PG R S C 2 Confiden tial GSM to UMTS inter-system Handover RAN S !orum !e"r. #th$ %&&'

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    Dr. Helmut SchfferICM N PG R S C 2 Confidential

    GSM to UMTS

    inter-system Handover

    RAN S !orum

    !e"r. #th$ %&&'

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    - Confidential Commercially not binding Siemens, 2004

    (ontent

    )ntroduction * Motivation R!N "it# o$erla%%ing GSM & 'M(S cells

    Architecture of the com"ined GSM * UMTS Net+or, Interfaces bet"een net"or) elements

    )nter-system Messae !lo+'*&MS +(S +SC MSC RNC Node+ MS&'*

    GSM to UMTS Handover )nitiation Maor %rere-.isites S.fficient 'M(S co$erage / Po"er +.dget /

    Im%erati$e / Ser$ice based /ando$er 1irected Retry from GSM to 'M(S

    Summary

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    )ntroduction * Motivation

    Goal H/ from GSM to UMTS de0endin on certain conditions

    UMTS cell 1

    GSM cell

    UMTS cell %

    Sufficient UMTS coverae H/

    2o+er 3udet H/

    )m0erative H/

    Service "ased Handover

    Directed Retry GSM to UMTS

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    - Confidential Commercially not binding Siemens, 2004

    Architecture of com"ined GSM * UMTS Net+or,

    )nterfaces "et+een net+or, elements 4(S services5

    'MSC

    G3MSC

    MSC

    RNC+SC

    !

    Node++(S

    MS&'*

    I.

    !bis I.b

    'm '.

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    )nter-system messae flo+

    GSM to UMTS handover

    "TS !G MSC RNS

    $-Ha%&'(er-Re)*+re&

    I*-Re,'cat+'%-Re)*et

    I*-Re,'cat+'%Re)*et-$c$-Ha%&'(er-C'//a%&

    RI-HO-C'//a%&

    I*-Re,'cat+'%-DetectRRC-HO-C'/0,ete

    I*-Re,'cat+'%-C'/0,ete

    $-C,ear-C'//a%&

    $-C,ear-C'/0,ete

    MS1U2 MS1U2"SC

    Mea. Re0'rt HO C'%&. I%&+cat+'%

    HO $cce

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    - Confidential Commercially not binding Siemens, 2004

    GSM to UMTS Handover )nitiation 415

    Ma6or 0rere7uisites )nclusion of UMTS neih"our cells in

    - 3S( and 3TS data "ase

    - System )nformation messaes 43S(*3TS -8 mo"ile5

    Rece0tion of mo"ile station (9ASSMAR: 4mo"ile -8 3TS*3S(5

    - UMTS ca0a"ility 4!DD$ TDD5

    - UMTS 0o+er class 4!DD$ TDD5

    Rece0tion of Measurement Re0orts 4mo"ile -8 3TS5

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    - Confidential Commercially not binding Siemens, 2004

    GSM to UMTS Handover )nitiation 4%5

    Sufficient UMTS coverae H/

    - H/ to UMTS as soon as a certain sufficient UMTS threshold is met

    2o+er 3udet H/

    - H/ to a cell +hich offers the smallest 0ath loss

    )m0erative H/ - ;merency H/< +hich uses UMTS cells to save the call

    Service "ased Handover

    - Handover certain services 4e.. data5 to UMTS$ ,ee0 certain services 4e.. voice5 +ithin GSM

    Directed Retry from GSM to UMTS - conestion "ased and service "ased

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    - Confidential Commercially not binding Siemens, 2004

    Sufficient UMTS coverae H/ 415

    Aim H/ to UMTS as soon as sufficient UMTS threshold condition is met.

    GSM cell

    UMTS cell 1

    UMTS cell %

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    - Confidential Commercially not binding Siemens, 2004

    Sufficient UMTS coverae H/ 4%5

    (onditions for H/ initiation - for RS(2 re0ortin Recei$ed le$el RSCP5 of 'M(S cell larger t#an 6s.fficient RSCP7 t#res#old8

    R=9ev>N(994n5 8 umtsSuffRS(24n5 ? Ma= 4&$ 2a5 415

    - for c*No re0ortin Recei$ed 9.ality *c&No5 of 'M(S cell larger t#an 6s.fficient *c&No7 t#res#old8

    [email protected]>N(994n5 8 umtsSuffcNo4n5 ? Ma= 4&$ 2a5 4%5

    "it# t#e follo"ing definitions8

    2a MsT=2ma=4n5 B 24n5 4C5

    MsT=2ma=4n5 ma:im.m R; (< %o"er an MS&'* is %ermitted to .se in a neig#bo.r cell=

    24n5 ma:im.m (< %o"er ca%ability ;11 or (115 of t#e MS&'*

    R=9ev>N(994n5 recei$ed le$el RSCP5 of neig#bo.r cell n ;11 or (115 "#ic# ismeas.red by t#e MS&'* and re%orted by MS&'* to t#e +(S=

    [email protected]>N(994n5 recei$ed -.ality *c&No5 of ;11 neig#bo.r cell n "#ic# is meas.red by

    t#e MS&'* and re%orted by MS&'* to t#e +(S=

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    2o+er 3udet Handover 415

    Aim Handover to a cell +hich offers the smallest 0ath loss

    UMTS cell 1

    GSM cell

    UMTS cell %

    Sufficient UMTS coverae H/

    2o+er 3udet H/

    )m0erative H/

    Service "ased Handover

    Directed Retry GSM to UMTS

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    2o+er 3udet Handover 4%5

    (onditions for H/ initiationithout Hierarchical (ell Structure H(S/I*RC > ;!?S*5823GT 8 hoMarin4n5 ? umtsAd6ust4n5 4'5

    AND R=9ev>N(994n5 8 R=9evMin(4n5 ? Ma= 4&$ 2a5 4#5

    "it# t#e definitions8

    23GT 40athloss in servin cell s5 B 40athloss in neih"our cell n5 4E5

    F Min 4 MsT=2ma=4s5$ 24s5 5 - R9>D9 - 2R>(>D I

    - F Min 4 MsT=2ma=4n5$ 24n5 5 - R=9ev>N(994n5 I

    2a MsT=2ma=4n5 B 24n5 4C5

    ith Hierarchical (ell Structure H(S/I*RC > (R'*58

    23GT 8 hoMarin4n5 ? umtsAd6ust4n5 4'5 AND R=9ev>N(994n5 8 R=9evMin(4n5 ? Ma= 4&$ 2a5 4#5

    AND 2riority9ayerN(ell4n5 2riority9ayer4s5 4J5

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    )m0erative H/ 415

    Aim of this ;merency H/

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    )m0erative H/ 4%5

    (onditions for H/ initiation

    '%lin) '?5 or 1o"nlin) 1?5 7ualityis too lo", or '? or 1? levelis too lo" or MS&'* +(S distanceis too large

    !or RS(2 re0ortin )nclusion of UMTS cells in T(9 if Recei$ed le$el RSCP5 of 'M(S cell larger t#an t#e minim.m RSCP t#res#old8

    R=9ev>N(994n5 8 R=9evMin(4n5 ? Ma= 4&$ 2a5 4K5

    !or c*No re0ortin)nclusion of UMTS cells in T(9 if Recei$ed 9.ality *c&No5 of 'M(S cell larger t#an t#e minim.m *c&No t#res#old8

    [email protected]>N(994n5 8 umtsMincNo4n5 ? Ma= 4&$ 2a5 4L5

    "it# t#e follo"ing definitions8 2a MsT=2ma=4n5 B 24n5 4C5MsT=2ma=4n5 ma:im.m R; (< %o"er an MS&'* is %ermitted to .se in a neig#bo.r cell=

    24n5 ma:im.m (< %o"er ca%ability ;11 or (115 of t#e MS&'*

    R=9ev>N(994n5 recei$ed le$el RSCP5 of neig#bo.r cell n ;11 or (115 "#ic# is meas.red byt#e MS&'* and re%orted by MS&'* to t#e +(S=

    [email protected]>N(994n5 recei$ed -.ality *c&No5 of ;11 neig#bo.r cell n "#ic# is meas.red by t#eMS&'* and re%orted by MS&'* to t#e +(S=

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    Service "ased Handover 415

    Aim Handover certain services 4e.. data5 to UMTS$ ,ee0 certain services 4e.. voice5 +ithin GSM.

    GSM cell 1 GSM cell %

    Sufficient UMTS coverae H/

    2o+er 3udet H/

    )m0erative H/

    Service "ased Handover

    Directed Retry GSM to UMTS

    UMTS cell %

    UMTS cell 1

    UMTS cell C

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    Service "ased Handover 4%5

    ) ;Service Handover< sent on A-interface 4MS( -8 3S(5

    !SSIGNM*N( R*9'*S( /[email protected]*R R*9'*S(

    I* set to 6/ando$er to '(R!N shall notbe %erformed78

    The MS*U is ,e0t +ithin the GSM system. No handover to UMTS. I=e=, t#e +(S generates a (C? "it#o.t 'M(S target cells=

    I* set to 6/ando$er to '(R!N should notbe %erformed78

    The MS/UE is kept within the GSM system as long as possible. I=e=, only 6im%erati$e7 #ando$ers to 'M(S are %erformed, and only if no GSM cells are a$ailable to sa$e t#e call= GSMs.blist is ran)ed abo$e t#e 'M(Ss.blist=

    I* set to 6/ando$er to '(R!N should be %erformed78

    The MS*U is handed over to UMTS as soon as 0ossi"le. I=e=, t#e +(S initiates a 6s.fficient 'M(S co$erage /7= ;or im%erati$e /, t#e 'M(Ss.blist is ran)ed abo$e t#e GSMs.blist=

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    Directed Retry from GSM to UMTS 415

    Aim - Use UMTS cells for call setu0 if GSM servin cell is conested - Service "ased Handover certain services 4e.. data5 to UMTS

    GSM cell 1 GSM cell %

    Sufficient UMTS coverae H/

    2o+er 3udet H/

    )m0erative H/

    Service "ased Handover

    Directed Retry GSM to UMTS

    UMTS cell %

    UMTS cell 1

    UMTS cell C

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    Directed Retry from GSM to UMTS 4%5

    (onditions for H/ initiation - conestionof GSM ser$ing cell and no GSM neig#bo.r cell a$ailable - orI* 6Service Handover7 is set to 6Handover to UMTS should "e 0erformed7

    !or RS(2 re0ortin )nclusion of UMTS cells in T(9 if Recei$ed le$el RSCP5 of 'M(S cell larger t#an t#e minim.m RSCP t#res#old8

    R=9ev>N(994n5 8 R=9evMin(4n5 ? Ma= 4&$ 2a5 4K5

    !or c*No re0ortin)nclusion of UMTS cells in T(9 if Recei$ed 9.ality *c&No5 of 'M(S cell larger t#an t#e minim.m *c&No t#res#old8

    [email protected]>N(994n5 8 umtsMincNo4n5 ? Ma= 4&$ 2a5 4L5

    "it# t#e follo"ing definitions8 2a MsT=2ma=4n5 B 24n5 4C5

    MsT=2ma=4n5 ma:im.m R; (< %o"er an MS&'* is %ermitted to .se in a neig#bo.r cell=

    24n5 ma:im.m (< %o"er ca%ability ;11 or (115 of t#e MS&'*

    R=9ev>N(994n5 recei$ed le$el RSCP5 of neig#bo.r cell n ;11 or (115 "#ic# ismeas.red by t#e MS&'* and re%orted by MS&'* to t#e +(S=

    [email protected]>N(994n5 recei$ed -.ality *c&No5 of ;11 neig#bo.r cell n "#ic# is meas.red byt#e MS&'* and re%orted by MS&'* to t#e +(S=

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    GSM to UMTS Handover * Summary

    !le=i"le H/ alorithm$ 0re0ared for different customer aims$es0ecially

    - H/ to UMTS as soon as 0ossi"le or

    - H/ +hen the UMTS 0athloss is smaller than the GSM 0athloss

    - H/ to hih 0riority UMTS cells 4Hierarchical (ell Structure H(S5

    UMTS cells can "e used to save a call in areas +ith lo+ GSM coverae

    Service "ased H/ and Directed Retry

    - Handover of certain services 4e.. data5 to UMTS- :ee0 certain services 4e.. voice5 +ithin GSM

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    3ac, U0 Slides

    Additional Information:

    (ell Ran,in in Taret (ell 9ist 4T(95

    !urther inter-system messae flo+s

    - Directed Retry from GSM to UMTS

    - H/ from UMTS to GSM

    2arameters * A""reviations

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    Sufficient UMTS coverae H/

    (ell Ran,in in Taret (ell 9ist 4T(95ithout Hierarchical (ell Structure H(S /I*RC > ;!?S*5

    for RSCP re%orting8 ;11&(11 cell "it# larest RS(2on to%

    for *c&No re%orting8 ;11 cell "it# larest c*Nois ran)ed on to% of ;11 s.blistA

    (11 cell "it# largest RSCP is ran)ed on to% of (11 s.blistA

    ;11 s.blist is ran)ed abo$e (11 s.blist=ith Hierarchical (ell Structure H(S /I*RC > (R'*5

    Increases t#e fle:ibility for t#e o%erator to direct traffic to certain 'M(S cells=

    for RSCP re%orting8 ;11&(11 cell "it# smallest 2riority9ayerN(ell4n5on to%A

    cells "it# e-.al Priority?ayerNCell are ran)ed according to RS(2=

    for *c&No re%orting8 ;11&(11 cell "it# smallest 2riority9ayerN(ell4n5on to%= cells "it# e-.al Priority?ayerNCell are ran)ed according to8

    ;11 cell "it# larest c*Nois ran)ed on to% of ;11 s.blistA

    (11 cell "it# #ig#est RSCP is ran)ed on to% of (11 s.blistA

    ;11 s.blist is ran)ed abo$e (11 s.blist=

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    2o+er 3udet Handover

    (ell Ran,in in Taret (ell 9ist 4T(95ithout Hierarchical (ell Structure H(S /I*RC > ;!?S*5

    Cells "it# t#e larest ;3etter (ell alue< 3(4n5are ran)ed on to% of t#e (C?=

    3(4n5 23GT4n5 B hoMarin4n5 - umtsAd6ust4n5

    ith Hierarchical (ell Structure H(S /I*RC > (R'*5

    Increases t#e fle:ibility for t#e o%erator to direct traffic to certain 'M(S cells=

    Cell ran)ing according to8

    2riority9ayerN(ell4n5 cells "it# smallest 2riority9ayerN(ell4n5on to% of t#e (C?=

    3(4n5 cells "it# e-.al Priority?ayerNCellare ran)ed according to 3(4n5

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    )m0erative H/

    (ell Ran,in in Taret (ell 9ist 4T(95ithout Hierarchical (ell Structure H(S /I*RC > ;!?S*58 for RSCP re%orting8 ;11&(11 cell "it# larest 3(on to% of 'M(Ss.blist

    for *c&No re%orting8 ;11 cell "it# larest c*Nois ran)ed on to% of ;11 s.blistA (11 cell "it# largest RSCP is ran)ed on to% of (11 s.blistA ;11 s.blist is ran)ed abo$e (11 s.blist to form 'M(Ss.blist=

    ith Hierarchical (ell Structure H(S /I*RC > (R'*58

    Increases t#e fle:ibility for t#e o%erator to direct traffic to certain 'M(S cells=

    for RSCP re%orting8 ;11&(11 cell "it# smallest 2riority9ayerN(ell4n5on to%A cells "it# e-.al Priority?ayerNCell are ran)ed according to 3(=

    for *c&No re%orting8 ;11&(11 cell "it# smallest 2riority9ayerN(ell4n5on to%=

    cells "it# e-.al Priority?ayerNCell are ran)ed according to8 ;11 cell "it# larest c*Nois ran)ed on to% of ;11 s.blistA (11 cell "it# #ig#est RSCP is ran)ed on to% of (11 s.blistA ;11 s.blist is ran)ed abo$e (11 s.blist=

    (om0lete T(9 4+ith and +*o H(S5 GSM-su"listis ran)ed a"oveUMTS-su"list=

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    Directed Retry from GSM to UMTS

    (ell Ran,in in Taret (ell 9ist 4T(95ithout Hierarchical (ell Structure H(S /I*RC > ;!?S*58 for RSCP re%orting8 ;11&(11 cell "it# larest 3(on to% of 'M(Ss.blist

    for *c&No re%orting8 ;11 cell "it# larest c*Nois ran)ed on to% of ;11 s.blistA (11 cell "it# largest RSCP is ran)ed on to% of (11 s.blistA ;11 s.blist is ran)ed abo$e (11 s.blist to form 'M(Ss.blist=

    ith Hierarchical (ell Structure H(S /I*RC > (R'*58

    Increases t#e fle:ibility for t#e o%erator to direct traffic to certain 'M(S cells=

    for RSCP re%orting8 ;11&(11 cell "it# smallest 2riority9ayerN(ell4n5on to%A cells "it# e-.al Priority?ayerNCell are ran)ed according to 3(=

    for *c&No re%orting8 ;11&(11 cell "it# smallest 2riority9ayerN(ell4n5on to%= cells "it# e-.al Priority?ayerNCell are ran)ed according to8 ;11 cell "it# larest c*Nois ran)ed on to% of ;11 s.blistA

    (11 cell "it# #ig#est RSCP is ran)ed on to% of (11 s.blistA ;11 s.blist is ran)ed abo$e (11 s.blist=

    (om0lete T(9"it# and "&o /CS5 de%ends on I* 6Service Handover78

    /ando$er to 'M(S should "e%erformed8 'M(Ss.blist ran)ed a"oveGSMs.blist /ando$er to 'M(S should not "e%erformed8 'M(Ss.blist ran)ed "elo+GSMs.blist I* 6Ser$ice /ando$er missing at !interface8 'M(Ss.blist ran)ed "elo+GSMs.blist

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    Directed Retry from GSM to UMTS

    )nter-system messae flo+

    "TS !G MSC RNS

    $-Ha%&'(er-Re)*+re&

    I*-Re,'cat+'%-Re)*et

    I*-Re,'cat+'%Re)*et-$c$-Ha%&'(er-C'//a%&

    RI-HO-C'//a%&

    I*-Re,'cat+'%-Detect RRC-HO-C'/0,ete

    I*-Re,'cat+'%-C'/0,ete$-C,ear-C'//a%&

    $-C,ear-C'/0,ete

    MS1U2 MS1U2"SC

    Mea. Re0'rt HO C'%&. I%&+cat+'%

    F'rce& HO Re)*et$-$+%/e%t-Re)*et

    $-$+%/e%t-Fa+,*re

    HO $cce

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    )nter-system messae flo+

    UMTS to GSM handover

    MS1U2 MS1U2RNS !G#MSC "TS

    I*-Re,'cat+'%-Re)*+re&$-Ha%&'(er-Re)*et

    $-Ha%&'(er-Re)*et-$cI*-Re,'cat+'%-C'//a%&

    RRC-HO-C'//a%&RI-HO-$cce

    $-Ha%&'(er-Detect

    RI-HO-C'/0,ete$-Ha%&'(er-C'/0,ete

    I*-Re,eae-C'//a%&

    I*-Re,eae-C'/0,ete

    "SC

    Cha%%e, $ct+(at+'%-$c

    Cha%%e, $ct+(at+'%

    Ha%&'(er Detect+'%

    Mea. Re0'rt

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    2arameters * A""reviations 415

    CG (#ird Generation

    AD((#is data base obect contains attrib.tes for t#e neig#bo.r cell relations#i% bet"een

    a GSM ser$ing cell and a GSM neig#bo.r cell=

    1ata base obect containment tree8 +SS;'NC(IN!? & +(SM & +(S & !1BC

    AD(CG(#is data base obect contains attrib.tes for t#e neig#bo.r cell relations#i%

    bet"een a GSM ser$ing cell and an 'M(S neig#bo.r cell=

    1ata base obect containment tree8 +SS;'NC(IN!? & +(SM & +(S & !1BCG

    3(4n5+etter Cell @al.e of neig#bo.r cell n= 1efinitions8

    for GSM neig#bo.r cell8 [email protected] 8> 23GT4n5 B hoMarin4n5

    for 'M(S neig#bo.r cell8 [email protected] 8> 23GT4n5 B hoMarin4n5 B umtsAd6ust4n5

    3RJ.& +asic Release =0 of Siemens GSM R!N5

    3S( +ase Station Controller GSM5

    3S( (#is data base obect contains +SC attrib.tes= 1ata base obect containment tree8

    +SS;'NC(IN!? & +SC

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    2arameters * A""reviations 4%5

    3TS +ase (ranscei$er Station GSM5

    3TS(#is data base obect contains +(S attrib.tes= 1ata base obect containment tree8

    +SS;'NC(IN!? & +(SM & +(S

    D91o"n ?in) +(S D MS&'*5

    c*No Recei$ed energy %er c#i% di$ided by t#e %o"er density in t#e band .sed for '(R!N

    ;11 cell meas.rements5

    !DD ;re-.ency 1i$ision 1.%le:

    [email protected] t#is %arameter defines data base attrib.te8 fddRe%9ty5 "#et#er t#e

    MS&'* s#all re%ort t#e meas.rement -.antity RSCP or *c&No of ;11 neig#bo.r cells5 to

    t#e +(S= 1ata base obect containment tree8+SS;'NC(IN!? & +(SM & +(S & fddRe%9ty

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    2arameters * A""reviations 4C5

    GSM Global System for Mobile Comm.nications

    HAND (#is data base obect contains #ando$er s%ecific attrib.tes= 1ata base obect

    containment tree8 +SS;'NC(IN!? & +(SM & +(S & /!N1

    H(S8 /ierarc#ical Cell Str.ct.re

    H)R((#is attrib.te *nable/ierarc#icalCell/o5 is .sed to enable&disable t#e /ierarc#ical

    Cell Str.ct.re H(S5A i=e= it enables&disables t#e .sage of %riority layers P?, P?NC5 for#ando$er= 1ata base obect containment tree8

    +SS;'NC(IN!? & +(SM & +(S & /!N1 & /I*RC

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    2arameters * A""reviations 4'5

    H/ /ando$er

    H/9TH9D94s5 t#is %arameter defines t#e 1? recei$ed le$el t#res#old

    #o?o"er(#res#old?e$1?5 for 1? ?e$el /ando$er= 1ata base obect containment tree8

    +SS;'NC(IN!? & +(SM & +(S & /!N1 & /?(/[email protected]?

    H/9TH9U94s5 t#is %arameter defines t#e '? recei$ed le$el t#res#old

    #o?o"er(#res#old?e$'?5 for '? ?e$el /ando$er=1ata base obect containment tree8

    +SS;'NC(IN!? & +(SM & +(S & /!N1 & /?(/[email protected]'?

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    2arameters * A""reviations 4#5

    hoMarin4n5 ;/ando$er Margin7 %arameter data base attrib.te8 /M5 "#ic# is .sed to

    %re$ent #ando$er oscillations bet"een t#e ser$ing GSM cell and neig#bo.r cell n GSM or'M(S neig#bo.r cell5= 1ata base obect containment trees8

    +SS;'NC(IN!? & +(SM & +(S & !1BC & /M for GSM neig#bo.rs5

    +SS;'NC(IN!? & +(SM & +(S & !1BCG & /M for 'M(S neig#bo.rs5

    ) Information *lement

    MS Mobile Station GSM5

    MS*U 1.almode Mobile Station "#ic# s.%%orts bot# GSM and 'M(S

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    2arameters * A""reviations 4E5

    MS( Mobileser$ices S"itc#ing Center

    MsT=2ma= ma:im.m R; (< %o"er an MS&'* is %ermitted to .se in a cell= 1ata base obectcontainment trees8 for GSM cells8+SS;'NC(IN!? & +(SM & +(S & Ms(:Pma:GSM+SS;'NC(IN!? & +(SM & +(S & Ms(:Pma:D(S+SS;'NC(IN!? & +(SM & +(S & Ms(:Pma:2(S

    for 'M(S ;115 cells8+SS;'NC(IN!? & (G(!DD& Ms(:Pma:UMTS for 'M(S (115 cells8+SS;'NC(IN!? & (G(TDD& Ms(:Pma:UMTS

    MsT=2ma=4n5 ma:im.m R; (< %o"er an MS&'* is %ermitted to .se in a neig#bo.r cell n=

    MsT=2ma=4s5 ma:im.m R; (< %o"er an MS&'* is %ermitted to .se in t#e ser$ing cell s=

    Node3'M(S base transcei$er station

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    2arameters * A""reviations 4J5

    23GT4n5 Po"er +.dget .sed by t#e #ando$er algorit#m for a Po"er +.dget #ando$er to

    t#e 6better cell7 n= 1efinition8 P+G(n5 8> E Min Ms(:Pma:s5, Ps5 5 R

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    2arameters * A""reviations 4K5

    2R>(>D difference bet"een t#e ma:im.m do"nlin) R; %o"er %ermitted in t#e GSM

    ser$ing cell and t#e act.al do"nlin) %o"er d.e to t#e +SS %o"er control=

    RAN Radio !ccess Net"or)

    RN( Radio Net"or) Controller 'M(S5

    RNS Radio Net"or) S.bsystem 'M(S5

    RS(2 Recei$ed Signal Code Po"er .sed for '(R!N ;11 or (11 cell meas.rements5

    R9>D9 GSM ser$ing cell recei$ed le$el do"nlin)5 meas.red by t#e MS&'*=

    R9>U9 GSM ser$ing cell recei$ed le$el .%lin)5 meas.red by t#e +(S=

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    2arameters * A""reviations 4L5

    R=9evMin4n5 defines t#e minim.m recei$ed le$el "#ic# is re-.ired to %erform a #ando$er

    to t#e neig#bo.r cell n GSM neig#bo.r cell5=1ata base obect containment trees8

    +SS;'NC(IN!? & +(SM & +(S & !1BC & R

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    2arameters * A""reviations 41&5

    T(9 (arget Cell ?ist

    TDD (ime 1i$ision 1.%le:

    TGT!DD(#is data base obect contains attrib.tes of t#e 'M(S ;115 cell= 1ata base obect

    containment tree8 +SS;'NC(IN!? & (G(;11

    TGTTDD(#is data base obect contains attrib.tes of t#e 'M(S (115 cell= 1ata base obect

    containment tree8 +SS;'NC(IN!? & (G((11

    U 'ser *-.i%ment 'M(S mobile station5

    U9'% ?in) MS&'* D +(S5

    UMTS 'ni$ersal Mobile (elecomm.nication System

    umtsAd6ust4n5 t#is attrib.te is .sed for t#e Po"er +.dget / 6better cell /75 from GSM

    to 'M(S= (#is intersystem offset data base attrib.te8 '!1B5 is added to t#e HoMarin4n5in

    order to #a$e t#e fle:ibility to ad.st t#e RSCP le$el of t#e 'M(S neig#bo.r cell n5 to t#e 1?

    recei$e le$el of t#e GSM ser$ing cell= 1ata base obect containment tree8

    +SS;'NC(IN!? & +(SM & +(S & !1BCG & '!1B

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    2arameters * A""reviations 4115

    umtsMincNo4n5 defines t#e *c&No t#res#old data base attrib.te8 'M*CN5 "#ic# is

    re-.ired to %erform an 6im%erati$e /7 to a ;11 neig#bo.r cell n5 ift#e %arameter [email protected] set to 6*c&No re%orting7=

    1ata base obect containment tree8

    +SS;'NC(IN!? & +(SM & +(S & !1BCG & 'M*CN

    umtsSuffcNo4n5 defines t#e 6s.fficient7 *c&No t#res#old data base attrib.te8 'S*CN5

    abo$e "#ic# t#e +(S initiates a 6S.fficient 'M(S co$erage /7 to a ;11 neig#bo.r cell n5 if

    t#e %arameter [email protected] set to 6*c&No re%orting7=

    1ata base obect containment tree8

    +SS;'NC(IN!? & +(SM & +(S & !1BCG & 'S*CN

    umtsSuffRS(24n5 defines t#e 6s.fficient7 RSCP t#res#old data base attrib.te8 'SRSCP5

    abo$e "#ic# t#e +(S initiates a 6S.fficient 'M(S co$erage /7 to a (11 neig#bo.r cell n5

    or to a ;11 neig#bo.r cell n5 if t#e %arameter [email protected] set to 6RSCPre%orting7= 1ata base obect containment tree8

    +SS;'NC(IN!? & +(SM & +(S & !1BCG & 'SRSCP

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    2arameters * A""reviations 41%5

    UTRAN'M(S (errestrial Radio !ccess Net"or)

    c8Hsc#ae2HaHsystems3for.mH/H/3GSM'M(S3systemsfor.m=%%t