a2) United States Patent
`US 8,538,411 B2
`(0) Patent No.:
`Sep. 17, 2013
`(45) Date of Patent:
`Kwonet al.
`
`US008538411B2
`
`(54) APPARATUS AND METHOD FOR
`TRANSMITTING/RECEIVING ACTIVATION
`INDICATOR REGARDING COMPONENT
`CARRIER IN WIRELESS COMMUNICATION
`SYSTEM
`
`(75)
`
`Inventors: Ki Bum Kwon, Ansan-si (KR); Myung
`Cheul Jung, Seoul (KR); Sung Jin Seo,
`Seoul (KR)
`
`(73) Assignee: Pantech Co., Ltd., Seoul (KR)
`
`(*) Notice:
`
`Subject to any disclaimer, the term ofthis
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 186 days.
`
`(21) Appl. No.: 12/916,203
`
`(22)
`
`Filed:
`
`Oct. 29, 2010
`
`Prior Publication Data
`
`US 2011/0105107 Al
`
`May5, 2011
`
`(65)
`
`(30)
`
`2010/0208749 Al*
`8/2010 Chunetal. ou. 370/474
`2010/0234037 Al*
`9/2010 Terry etal.
`.....
`... 455/450
`
`2010/0278176 A1* 11/2010 Faniuolo etal... 370/389
`
`(Continued)
`FOREIGN PATENT DOCUMENTS
`2012-519984
`8/2012
`2007/148707
`12/2007
`
`JP
`WO
`
`(Continued)
`
`OTHER PUBLICATIONS
`
`International Search Report dated Aug. 1, 2011 for Application No.
`PCT/KR2010/007549 , which corresponds to U.S. Appl. No.
`12/916,203.
`
`(Continued)
`
`Primary Examiner — Jean Gelin
`Assistant Examiner — Qun Shen
`(74) Attorney, Agent, or Firm — H.C. Park & Associates,
`PLC
`
`Foreign Application Priority Data
`
`(57)
`
`ABSTRACT
`
`Oct. 30, 2009
`Sep. 8, 2010
`
`(KR) wees 10-2009-0104586
`
`(KR) wee 10-2010-0088151
`
`(51)
`
`Int. Cl.
`HOAW 4/00
`(52) U.S. CL.
`USPC... 455/422.1; 455/454; 455/509; 370/252;
`370/311; 370/329
`
`(2009.01)
`
`(58) Field of Classification Search
`USPC vce 455/509, 422.1, 454; 370/252, 311,
`370/329
`
`See application file for complete search history.
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`2009/0163211 Al*
`6/2009 Kitazoeetal. oi . 455/436
`2009/0196196 Al
`8/2009 Ghoshetal.
`2010/0098011 Al*
`4/2010 Pelletier et al. wo. 370/329
`
`20
`
`BS
`
`A method for supporting activation/deactivation of serving
`cells by a base station (eNB) in a wireless communication
`system provides decreased overhead and decreased power
`consumptionfor a user equipment (UE). The method includes
`configuring M supportable serving cells in the UE, configur-
`ing an indicator indicating activation/deactivation of each of
`the M serving cells, configuring a medium access control
`(MAC) message which includes a MAC control element (CE)
`and a logical channel identifier (LCID), the MAC CE includ-
`ing the indicator configured for each of the M serving cells
`and having a length corresponding to an integer multiple of 8
`bits, the LCID indicating that the MAC CEincludes the
`indicator indicating activation/deactivation of each serving
`cell, and transmitting the configured MAC message to the
`UE. Accordingly, a control channel or data channel regarding
`a component carrier is selectively received depending on
`whether the componentcarrier is activated.
`
`16 Claims, 35 Drawing Sheets
`
`
`
`
`
`
`
`
`
`SAMSUNG 1006
`
`SAMSUNG 1006
`
`1
`
`

`

`US 8,538,411 B2
`
`Page 2
`
`(56)
`
`WO
`WO
`
`FOREIGN PATENT DOCUMENTS
`2009/086696
`7/2009
`2009/099974
`8/2009
`
`References Cited
`
`11/2010
`2010/126154
`OTHER PUBLICATIONS
`NEC, R2-094624,“Details on CarrierAggregation Signaling”, 3GPP
`U.S. PATENT DOCUMENTS
`soloosgores ne Delo Hee oiseesrnsnenesceeceennten at TSG-RAN WG?#67, Shenzhen, China, Aug. 24-28, 2009.(http://
`
`5011/0038296 Al*
`2/2011 Yietal.
`| 370/312
`‘@P-3gpp.org/specs/html-info/TDocExMtg--R2-67--27297htm).
`2011/0045863 A1*
`2/2011 Leeetal.
`........
`455/517
`NEC, R2-094626, “Mobility and Carrier Aggregation Signaling”,
`2011/0243066 Al* 10/2011 Nayeb Nazar etal.
`....... 370/328
`3GPP TSG-RAN WG2 #67, Shenzhen, China, Aug. 24-28, 2009.
`2011/0292851 A1* 12/2011 Fongetal. ccc 370/311
`(hitp://ftp.3gpp.org/specs/html-info/TDocExMtg--R2-67--27297.
`2011/0305290 Al* 12/2011 Kimetal.
`......
`. 375/267
`htm).
`
`7/2012 Dalsgaard etal.
`....0...... 455/434
`2012/0178445 Al*
`Ericsson, ST-Ericsson, “Activation and deactivation of component
`carriers,” 3GPP TSG-RAN WG2 #68, Tdoc R2-096752, Oct. 9-13,
`2009, Jeju, Korea.
`
`Wo
`
`* cited by examiner
`
`2
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 1 of 35
`
`US 8,538,411 B2
`
`FIG. 1
`
`20
`
`BS
`
`3
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 2 of 35
`
`US 8,538,411 B2
`
`FIG. 2
`
`Anchor Carrier
`
`
`
`4
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 3 of 35
`
`US 8,538,411 B2
`
` UOISUA}XJ-GDD
`UOISUd}XF-7DD
`
`
`IEN-E€DD99-2)UOIsusPxXq-TDD
`
`¢Old
`
`SORRY
`
`T40lS
`
`C0\S
`
`SDDFIAVAIZIAYTV
`
`
`
`NOLLVWYOANITIOYULNOD
`
`
`
`dNOUDNOLLVALLDV
`
`pe
`
`5
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 4 of 35
`
`US 8,538,411 B2
`
`
`
`
`
`G4LVDIGNINOIDSaVLIVGL__J
`
`HD0ddAdf
`
`sosae[|
`
`
`
`dNOdDNOILVAILDV
`
`NOILVWHYOANI
`
`TOULNOD IAN-ED)D
`
`SSS
`
`uolsualx5-S$DD
`UOISUd}XF-7)D
`98-2)
`UOISUa}XF-T)D
`
`yOl
`
`6
`
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 5 of 35
`
`US 8,538,411 B2
`
`-osaa[|
`
`
`
`
`
`H29ddAdfdQALVDIGNINOID3YVLVdL__J
`
`GDI
`
`I-CD) UOISUB]XJ-TDD
`
`
`UOISUa}Xg-G9D-UOISUA}XF-f9D--DAN-EDD
`
`
`
`NOILVAYOANIVIVO
`
`
`
`NOLLWAYOANIVIVO
`
` dNOwD
`NOILLVALLDV
`pe
`
`
`
`dNOUDNOLLVALLDV
`
`7
`
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 6 of 35
`
`US 8,538,411 B2
`
`FIG. 6
`
`SELECT PRIMARY PRELIMINARY
`CONTROL INFORMATION
`ACTIVATION GROUP
`
`SELECT SECONDARY PRELIMINARY
`CONTROL INFORMATION
`ACTIVATION GROUP
`
`SELECT PREFERRED ASSIGNMENT
`CONTROL INFORMATION
`ACTIVATION GROUP
`
`ACTIVATION GROUP
`
`ASSIGN INFORMATION TO
`PREFERRED ASSIGNMENT
`CONTROL INFORMATION
`
`ADD PREFERRED
`
`
`IS THERE
`ASSIGNMENT CONTROL
`
`REMAINING CONTROL
`INFORMATION
`
`INFORMATION?
`ACTIVATION GROUP
`
`No
`
`5610
`
`5620
`
`5630
`
`5640
`
`S650
`
`CONFIGURE CONTROL
`INFORMATION ACTIVATION GROUPY
`
`2670
`
`END
`
`8
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 7 of 35
`
`US 8,538,411 B2
`
`FIG. 7
`
`ENTIRE
`
`PRIMARY pt
`
`PRELIMINARY
`ACTIVATION
`
`CC2
`
`y
`
`ALLEN 7
`tO
`
`von pSECONDARY
`
`CCS
`
`PRELIMINARY
`ACTIVATION
`GROUP
`
`PREFERRED
`ASSIGNMENT 7
`
`some Lfe[aleo[es
`
`7i CelYises
`
`GROUP
`
`SPECIFIC
`
`(7
`
`ADDED PREFERRED
`ASSIGNMENT CC
`
`GROUP
`
`YL
`
`Yo
`
`9
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 8 of 35
`
`US 8,538,411 B2
`
`START
`
`SELECT PRIMARY PRELIMINARY DATA
`INFORMATION ACTIVATION GROUP
`
`SELECT SECONDARY PRELIMINARY DATA
`INFORMATION ACTIVATION GROUP
`
`SELECT PREFERRED ASSIGNMENT DATA
`INFORMATION ACTIVATION GROUP
`
`ASSIGN INFORMATION TO PREFERRED
`ASSIGNMENT DATA INFORMATION
`
`ACTIVATION GROUP
`
`ADD PREFERRED
` IS THERE
`ASSIGNMENT DATA
`
`REMAINING DATA
`INFORMATION
`
`INFORMATION?
`ACTIVATION GROUP
`
`No
`
`$750
`
`$710
`
`$720
`
`$730
`
`S740
`
`CONFIGURE DATA INFORMATION
`ACTIVATION GROUP
`
`$770
`
`END
`
`10
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 9 of 35
`
`US 8,538,411 B2
`
`FIG. 9
`
`PRIMARY LL
`
`
`
`ENTIRE
`
`PRELIMINARY
`
`SECONDARY
`
`PRELIMINARY
`
`GROUP
`
`11
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 10 of 35
`
`US 8,538,411 B2
`
`
`
`12
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 11 of 35
`
`US 8,538,411 B2
`
`FIG. 11
`
`1100
`
`1110
`
`1120
`
`Unit (1122)
`
`Message
`Transmission
`Unit (1112)
`
`Message
`Reception
`Unit (1114)
`
`Activtion Group
`Configuration
`Unit (1124)
`
`Activation Indicator
`Generation
`
`13
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 12 of 35
`
`US 8,538,411 B2
`
`CLOl
`
`1’Od
`
`YNNALNV700cT
`
`dYOMICOD
`
`
`
`YOLVYINIDYaddVW
`
`
`
`TWNOISLNAW14
`
`
`
`Wdi0JDYNOSIY
`
`
`
`YOLVYINIDYaddVW
`
`
`
`TWNOISINAW14
`
`
`
`Wdi0JDYNOSIY
`
`wddO34d
`
`NOLLVINGOW OTT
`
`09¢TOST
`
`
`
`OrelOECT
`
`OCCT
`
`ddddVAN
`
`NOLLVINGOW
`YdaTaNVeDS
`
`ddddVAN
`
`YdaTaNVeDS
`
`14
`
`14
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 13 of 35
`
`US 8,538,411 B2
`
`FIG. 13
`
`RECEIVE ACTIVATION INDICATOR
`
`START TO RECEIVE INFORMATION
`REGARDING CC IN ACTIVATION GROUP
`
`
`
`
`
`RECEIVE INFORMATION IN ACTIVATION
`GROUP AND THEN DEMODULATE AND
`ANALYZE INFORMATION
`
`f~_<330
`
`15
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 14 of 35
`
`US 8,538,411 B2
`
`1400
`
`1420
`
`1430
`
`1410
`
`RECEPTION
`PROCESSING
`
`UNIT ACTIVATION GROUP
`
`CONFIRMATION
`UNIT
`
`INFORMATION
`ANALYSIS
`UNIT
`
`16
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 15 of 35
`
`US 8,538,411 B2
`
`FIG. 15
`
`1500
`
`1505
`
`1510
`
`DL PCC ---~-sabps--------=salconnnananWp.soon
`UL PCC -----44-_-------PcellatSL
`
`1515
`
`1520
`
`1525
`
`t/aUL SCC py ------#F--------“Sa-------SE
`
`---
`
`1530
`
`1535
`
`1540
`
`@ « Intra-frequency
`Neighbour Cell
`
`SS: Inter-frequency
`Neighbour Cell
`
`17
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 16 of 35
`
`US 8,538,411 B2
`
`
`
`peojteday
`
`
`
`
`
`
`
`NdsDVN|OUJUODJYW}/O41U0)IVA
`
`UJUaWe9|9
`TJuawaje
`
`9LOld
`
`A-OT9T
`
`v-OT9T
`
`e-OT9T
`
`C-OT9T
`
`T-O191
`
`Ov9T
`
`
`
`W-0E9T1-0891
`
`-*o“
`-
`
`S2OL
`”~~Q7gy
`
`”
`
`OT9T
`
`a
`
`”
`
`
`
`GuippedqI1/3/u/u
`
`JOPed-qns
`
`
`
`JapeayJV
`
`18
`
`18
`
`
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 17 of 35
`
`US 8,538,411 B2
`
`FIG. 17
`
`1700
`
`
`
`PPPPPE 1.
`
`8
`
`7
`
`6
`
`5
`
`4
`
`3
`
`2
`
`1
`
`MM
`SERVING CELL INDEX OF
`
`SSC SUPPORTABLE IN SYSTEM
`
`19
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 18 of 35
`
`US 8,538,411 B2
`
`FIG. 18
`
`1800
`
`
`
`ofifofofo}2]}ojo} roc
`8 MOO4@Q2 1
`MM
`SERVING CELL INDEX OF
`
`SSC SUPPORTABLE IN SYSTEM
`
`: SERVING CELL INDEX OF
`
`SSC CONFIGURED IN UE
`
`20
`
`20
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 19 of 35
`
`US 8,538,411 B2
`
`FIG. 19
`
`1900
`
`
`
`1905
`
`\
`
`SERVING CELL INDEX OF
`
`SSC SUPPORTABLE IN SYSTEM
`
`21
`
`21
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 20 of 35
`
`US 8,538,411 B2
`
`FIG. 20
`
`2000
`
`
`
`2{afo}o}z}o}aja) roc
`
`F8
`
`F7
`
`FG
`
`FS
`
`F4
`
`F3
`
`F2 Fl
`
`MM
`FREQUENCY INDEX OF
`SSC SUPPORTABLE IN SYSTEM
`
`22
`
`22
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 21 of 35
`
`US 8,538,411 B2
`
`FIG. 21
`
`2100
`
`
`
`
`
`F4
`F3
`F2 Fl
`2105
`\
`J
`
`FREQUENCY INDEX OF
`SSC SUPPORTABLE IN SYSTEM
`
`23
`
`23
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 22 of 35
`
`US 8,538,411 B2
`
`FIG. 22
`
`2200
`
`
`
`RiriR[R}oli}ol}1} 100
`\Z771
`
`2205
`\
`J
`
`SERVING CELL INDEX OF
`
`SSC CONFIGURED IN UE
`
`24
`
`24
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 23 of 35
`
`US 8,538,411 B2
`
`FIG. 23
`
`2300
`
`
`
`
`RiriR[R}oli}ol}1} 100
`\L77F4
`
`F3 Fl
`2305
`\
`
`FREQUENCY INDEX OF
`SSC CONFIGURED IN UE
`
`25
`
`25
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 24 of 35
`
`US 8,538,411 B2
`
`FIG. 24
`
`2400
`
`
`
`
`INDEXMAPPING
`fit= |
`
`scenech,INDEXCELL INDEX OF
`
`2405
`
`INFORMATION
`
`SSC CONFIGURED IN UE
`
`26
`
`26
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 25 of 35
`
`US 8,538,411 B2
`
`INFORMATION
`
`INDEX MAPPING
`
`SERVING CELL INDEX OF
`
`SSC CONFIGURED IN UE
`
`27
`
`27
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 26 of 35
`
`US 8,538,411 B2
`
`FIG. 26
`
`2600
`
`
`
`ifofofrfofol[s}roa
`
`0
`~L-SERVING CELL
`INDEX OF PSC
`
`6
`5
`4
`SERVING CELL
`INDEX OF SSC
`
`1 7
`
`3
`
`2
`
`SERVING CELL INDEX OF
`
`SERVING CELL SUPPORTABLE IN SYSTEM
`
`28
`
`28
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 27 of 35
`
`US 8,538,411 B2
`
`FIG, 27
`
`2700
`
`
`
`o}2}ofofojo}o}i}iox
`@O@GO+1O@21@
`MM
`SERVING CELL INDEX OF SERVING
`
`CELL SUPPORTABLE IN SYSTEM
`
`Q: SERVING CELL INDEX OF
`SERVING CELL CONFIGURED IN UE
`
`29
`
`29
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 28 of 35
`
`US 8,538,411 B2
`
`FIG. 28
`
`2800
`
`
`
`2805
`
`\
`
`j
`
`SERVING CELL INDEX OF SERVING CELL
`
`SUPPORTABLE IN SYSTEM
`
`30
`
`30
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 29 of 35
`
`US 8,538,411 B2
`
`FIG. 29
`
`2900
`
`
`
`2{afo}o}z}o}aja) roc
`
`F7
`
`F6
`
`FS
`
`F4
`
`F3
`
`F2
`
`F1
`
`FO
`
`MM
`FREQUENCY INDEX OF SERVING
`CELL SUPPORTABLE IN SYSTEM
`
`31
`
`31
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 30 of 35
`
`US 8,538,411 B2
`
`FIG. 30
`
`3000
`
`
`
`3005
`
`\
`
`j
`
`FREQUENCY INDEX OF SERVING
`CELL SUPPORTABLE IN SYSTEM
`
`32
`
`32
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 31 of 35
`
`US 8,538,411 B2
`
`FIG. 31
`
`3100
`
`
`
`SERVING CELL INDEX OF SERVING
`
`CELL CONFIGURED IN UE
`
`33
`
`33
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 32 of 35
`
`US 8,538,411 B2
`
`FIG. 32
`
`3200
`
`
`
`3205
`
`\
`
`F3 Fl
`
`FO
`
`FREQUENCY INDEX OF SERVING
`CELL CONFIGURED IN UE
`
`34
`
`34
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 33 of 35
`
`US 8,538,411 B2
`
`
`
`INDEX MAPPING
`INFORMATION
`
`SERVING CELL INDEX OF SERVING
`
`CELL CONFIGURED IN UE
`
`35
`
`35
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 34 of 35
`
`US 8,538,411 B2
`
`FIG. 34
`
`3400
`
`
`
`3405
`
`INFORMATION
`
` | | TH| INDEXMAPPING
`
`
`
`
`
`SERVING oanorKoINDEX OF SERVING
`
`CELL CONFIGURED IN UE
`
`36
`
`36
`
`

`

`U.S. Patent
`
`Sep. 17, 2013
`
`Sheet 35 of 35
`
`US 8,538,411 B2
`
`FIG. 35
`
`UE
`
`BS
`
`INDEX MAPPING INFORMATION
`
`MAPPING CONFIRMATION INFORMATION ACTIVATION INDICATOR
`
`37
`
`37
`
`

`

`US 8,538,411 B2
`
`1
`APPARATUS AND METHOD FOR
`TRANSMITTING/RECEIVING ACTIVATION
`INDICATOR REGARDING COMPONENT
`CARRIER IN WIRELESS COMMUNICATION
`SYSTEM
`
`This application claimspriority from andthe benefit under
`35 U.S.C. §119(a) of Korean Patent Application No.
`10-2009-0104586, filed on Oct. 30, 2009, and Korean Patent
`Application No. 10-2010-0088151, filed on Sep. 8, 2010, the
`disclosures of which are incorporated herein by reference for
`all purposes.
`
`BACKGROUND
`
`1. Field
`
`The following description relates to wireless communica-
`tions, and moreparticularly, to an apparatus and method for
`constructing an activation group regarding a componentcar-
`rier in a wireless communication system having a plurality of
`componentcarriers and for transmitting and receiving activa-
`tion information generated on the basis of the constructed
`activation group.
`2. Discussion of the Background
`Next generation wireless communication systems support
`a high data rate. For this, various techniques, such as multiple
`input multiple output (MIMO), cooperative multiple point
`transmission (CoMP), relay, etc., have been researched, but
`another solution may be to increase a bandwidth.
`However, currently, a frequency resource is in a saturation
`state, and various schemesare partially used in a wide fre-
`quency band.Forthis reason, in order to ensure a broadband
`bandwidth in order to satisfy a higher data rate, a system is
`designedto satisfy a basic requirement which requires sepa-
`rate bands capable of operating respective independentsys-
`tems, and a carrier aggregation (CA) is introduced. In con-
`cept, the CA aggregates a plurality of bands into one system.
`In this case, a band that can be independently managed is
`defined as a componentcarrier (CC).
`
`SUMMARY
`
`Exemplary embodiments ofthe present invention provide a
`system including a plurality of componentcarriers satisfying
`a service requirement in a next generation wireless commu-
`nication system, and a methodfor the system.
`Exemplary embodiments of the present invention provide
`an apparatus and methodfor configuring an activation group
`in correspondence with specific information in a wireless
`communication system using a plurality of componentcarri-
`ers.
`
`Exemplary embodiments of the present invention provide
`an apparatus and method for generating an activation indica-
`tor on the basis of an activation group configured in corre-
`spondence with specific information in a wireless communi-
`cation system using a plurality of componentcarriers.
`Exemplary embodiments of the present invention provide
`an apparatus and methodfor indicating activation and deac-
`tivation of a componentcarrier configured in correspondence
`with specific information in a wireless communication sys-
`tem using a plurality of componentcarriers.
`Exemplary embodiments of the present invention provide
`an apparatus and method for transmitting and receiving an
`activation indicator indicating activation of a selected com-
`ponentcarrier in a wireless communication system using a
`plurality of componentcarriers.
`
`2
`Exemplary embodiments of the present invention provide
`an apparatus and method for transmitting and receiving an
`activation indicator indicating deactivation of a selected com-
`ponent carrier in a wireless communication system using a
`plurality of componentcarriers.
`Exemplary embodiments of the present invention provide
`an apparatus and method for transmitting and receiving an
`activation indicator indicating activation or deactivation of a
`selected componentcarrier by constructing the indicator in a
`format of a bitmap having a predeterminedsize in a wireless
`communication system using a plurality of componentcarri-
`ers.
`
`Exemplary embodiments of the present invention provide
`an apparatus and method for transmitting and receiving an
`activation indicator indicating activation or deactivation of a
`secondary serving cell (SSC), to which a system information
`block type 2 (SIB2) connection is established, by construct-
`ing the indicator to have the same length as information
`indicating a componentcarrier index in a wireless communi-
`cation system.
`Exemplary embodiments of the present invention provide
`an apparatus and method for transmitting and receiving an
`activation indicator indicating activation or deactivation of an
`SSC, to which an SIB2 connection is established, by using
`medium access control (MAC) signaling in a wireless com-
`munication system.
`Additional features of the invention will be set forth in the
`description which follows, and in part will be apparent from
`the description, or may be learned by practice of the inven-
`tion.
`
`An exemplary embodimentprovides a methodfor support-
`ing activation/deactivation of serving cells by a base station
`(eNB) in a wireless communication system,
`the method
`including configuring M supportable serving cells in a user
`equipment (UE), configuring an indicator indicating activa-
`tion/deactivation of each ofthe M serving cells, configuring a
`medium access control (MAC) message which includes a
`MACcontrol element (CE) and a logical channel identifier
`(LCID), the MAC CEincluding the indicator configured for
`each ofthe M serving cells and having a length corresponding
`to an integer multiple of 8 bits, the LCID indicating that the
`MACCEincludes the indicator indicating activation/deacti-
`vation of each serving cell, and transmitting the configured
`MACmessage to the UE.
`An exemplary embodimentprovides a methodfor support-
`ing activation/deactivation of serving cells by a user equip-
`ment (UE)in a wireless communication system, the method
`including receiving a medium access control (MAC) message
`from a base station (eNB), confirming by a logical channel
`identifier (LCID)that an indicatoris included in the received
`MAC message, and confirming that the indicator indicates
`activation/deactivation of each of M serving cells configured
`in the UE by using a MAC control element (MAC CE) having
`a length corresponding to an integer multiple of 8 bits, and
`receiving a downlink control channel or a downlink data
`channel from the eNBortransmitting an uplink data channel
`to the eNB byusing an activated serving cell based on the
`confirmedindicator.
`An exemplary embodimentprovides a base station (eNB)
`to support activation/deactivation of serving cells in a wire-
`less communication system, the eNB including an activation
`group configuration unit to configure M supportable serving
`cells in a user equipment (UE), an activation indicator gen-
`eration unit to generate an indicator indicating activation/
`deactivation of each of the M serving cells, a message trans-
`mission unit to configure a medium access control (MAC)
`message and to transmit the configured MAC messageto the
`
`25
`
`30
`
`35
`
`40
`
`45
`
`50
`
`55
`
`60
`
`65
`
`38
`
`38
`
`

`

`US 8,538,411 B2
`
`3
`4
`UE, the MAC message including a MAC control element
`and having a length corresponding to an integer multiple of 8
`(MAC CE) andalogical channelidentifier (LCID), the MAC
`bits, the LCID indicating that the MAC CEincludes the
`indicator. The CC is a cell to transmit and receive information
`CE including the indicator configured for each of the M
`serving cells and having a length corresponding to an integer
`multiple of 8 bits, the LCID indicating that the MAC CE
`includesthe indicator.
`An exemplary embodiment provides a user equipment
`(UE) to support activation/deactivation of serving cells in a
`wireless communication system, the user equipment includ-
`ing a reception processing unit to receive a medium access
`control (MAC) message, an activation group confirmation
`unit to confirm by logical channel identifier (LCID) that an
`indicator is included in the received MAC message, and to
`confirm that the indicator indicates activation/deactivation of
`
`between the eNB and the UE, that the cell has a linkage
`between uplink CC and downlink CC.
`An exemplary embodiment provides a user equipment
`(UE)to support activation/deactivation of componentcarrier
`(CC)s in a wireless communication system, the user equip-
`ment
`including a reception processing unit to receive a
`medium access control (MAC) message, an activation group
`confirmation unit to confirm by logical channel identifier
`(LCID)that an indicator is included in the recetved MAC
`message, and to confirm that the indicator indicates activa-
`tion/deactivation of each of M componentcarrier (CC)s con-
`figured in the UE by using a MAC control element (CE)
`having a length correspondingto an integer multiple of 8 bits,
`and an information analysis unit to receive a downlink control
`channel or a downlink data channel, or to transmit an uplink
`data channel, by using an activated componentcarrier (CC)
`based on the confirmedindicator. The CC is a cell to transmit
`
`each of M serving cells configured in the UE by using a MAC
`control element (CE) having a length corresponding to an
`integer multiple of8 bits, and an information analysis unit to
`receive a downlink control channel or a downlink data chan-
`nel, or to transmit an uplink data channel, by using an acti-
`vated serving cell based on the confirmed indicator.
`An exemplary embodimentprovides a method for support-
`andreceive information between the eNBand the UE,that the
`ing activation/deactivation of componentcarriers by a base
`cell has a linkage between uplink CC and downlink CC.
`station (eNB) in a wireless communication system supporting
`An exemplary embodimentprovides a methodfor support-
`multi componentcarriers, the method including configuring
`ing activation/deactivation of componentcarrier (CC)s by a
`M supportable componentcarrier (CC)s in a user equipment
`base station (eNB) in a wireless communication system using
`(UE), configuring an indicator indicating activation/deactiva-
`a plurality of CCs having frequency bandsthat can be inde-
`tion of each of the M CCs, configuring a medium access
`control (MAC) message which includes a MACcontrolele-
`pendently managed, the method including determining, for
`
`ment (CE) andalogical channel identifier (LCID), the MAC each of the CCs, activation to instruct monitoring for receiv-
`30
`CEincluding the indicator configured for each of the M CCs
`ing a control channel and a data channelorat least one of the
`control channel and the data channel or deactivation to
`and having a length corresponding to an integer multiple of 8
`bits, the LCID indicating that the MAC CEincludes the
`indicator indicating activation/deactivation of each CC, and
`transmitting the configured MAC messageto the UE. The CC
`is acell to transmit andreceive information between the eNB
`
`20
`
`25
`
`35
`
`instruct a stop of the monitoring for receiving the control
`channel and the data channel, setting the determined activa-
`tion or deactivation to a 1-bit indicator, wherein the activation
`is set to 1 and the deactivation is set to 0, and transmitting
`medium access control (MAC) signaling which includes the
`and the UE,that the cell has a linkage between uplink CC and
`downlink CC.
`indicator for each of the CCsinabit-stream having a prede-
`An exemplary embodimentprovides a method for support-
`termined length, to a user equipment (UE).
`ing activation/deactivation of componentcarriers by a user
`An exemplary embodimentprovides a methodfor support-
`equipment (UE) in a wireless communication system sup-
`ing activation/deactivation of componentcarrier (CC)s by a
`porting multi component carriers,
`the method including
`user equipment (UE) in a wireless communication system
`receiving a medium access control (MAC) message from a
`using a plurality of CCs having frequency bandsthat can be
`base station (eNB), confirming by a logical channelidentifier
`independently managed,
`the method including receiving
`(LCID)that an indicator is included in the recerved MAC
`medium access control (MAC) signaling which includes an
`message, and confirming that the indicator indicates activa-
`indicator configured for each of the CCsin a bit-stream hav-
`tion/deactivation of each of M componentcarrier (CC)s con-
`ing a predetermined length, confirming the indicator set for
`figured in the UE by using a MAC control element (MAC CE)
`each of the CCsin the bit-stream having the predetermined
`having a length correspondingto an integer multiple of 8 bits,
`length, activating a corresponding CC if the confirmed indi-
`and receiving a downlink control channel or a downlink data
`cator is 1 or deactivating the corresponding CC if the con-
`channel from the eNBortransmitting an uplink data channel
`firmed indicator is 0, and receiving a control channel and a
`data channelor at least one ofthe control channel and the data
`to the eNB byusing an activated CC based on the confirmed
`indicator. The CC is a cell to transmit and receive information
`channel by monitoring the activated CC or not receiving the
`control channel and the data channel by stopping monitoring
`of the deactivated CC.
`
`40
`
`45
`
`50
`
`55
`
`60
`
`65
`
`39
`
`between the eNB and the UE, that the cell has a linkage
`between uplink CC and downlink CC.
`An exemplary embodimentprovides a base station (eNB)
`to support activation/deactivation ofcomponentcarrier (CC)s
`in a wireless communication system, the eNB including an
`activation group configuration unit to configure M support-
`able componentcarrier (CC)s in a user equipment (UE), an
`activation indicator generation unit to generate an indicator
`indicating activation/deactivation of each of the M compo-
`nentcarrier (CC)s, a message transmission unit to configure a
`medium access control (MAC) message andto transmit the
`configured MAC message to the UE, the MAC message
`including a MACcontrol element (MAC CE) anda logical
`channel identifier (LCID), the MAC CE including the indi-
`cator configured for each of the M componentcarrier (CC)s
`
`An exemplary embodimentprovides a base station (eNB)
`for supporting activation/deactivation of component carrier
`(CC)s in a wireless communication system using a plurality
`of CCs having frequency bands that can be independently
`managed, the eNB including a controller to determine, for
`each of the CCs, activation to instruct monitoring for receiv-
`ing a control channel and a data channelorat least one of the
`control channel and the data channel or deactivation to
`instruct a stop of the monitoring for receiving the control
`channel and the data channel, and to set the determined acti-
`vation or deactivation to a 1-bit indicator, wherein the activa-
`tion is set to 1 and the deactivationis set to 0, and a transceiver
`medium access control (MAC) signaling which includes the
`
`39
`
`

`

`US 8,538,411 B2
`
`6
`5
`
`indicator for each of the CCsinabit-stream having a prede- FIG. 12 showsa signal generation structure of a downlink
`termined length, to a user equipment (UE).
`physical channel for transmitting an activation indicator
`An exemplary embodiment provides a user equipment
`according to an exemplary embodimentof the present inven-
`tion.
`(UE) for supporting activation/deactivation of component
`carrier (CC)s in a wireless communication system using a
`plurality of CCs having frequency bandsthat can be indepen-
`dently managed, the UE including a reception processing unit
`to receive medium access control (MAC) signaling which
`includes an indicator configured for each of the CCs in a
`bit-stream having a predetermined length,an activation group
`confirmation unit to confirm the indicator set for each of the
`CCsin the bit-stream having the predetermined length, and to
`activate a corresponding CCif the confirmed indicatoris 1 or
`deactivate the corresponding CC if the confirmedindicatoris
`0, and an information analysis unit to receive a control chan-
`nel and a data channelor at least one of the control channel
`and the data channel by monitoring the activated CC or not to
`receive the control channel and the data channel by stopping
`monitoring of the deactivated CC.
`It is to be understood that both the foregoing general
`description and the following detailed description are exem-
`plary and explanatory and are intended to provide further
`explanation of the invention as claimed. Other features and
`aspects will be apparent from the following detailed descrip-
`tion, the drawings, and the claims.
`
`20
`
`25
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`The accompanying drawings, which are includedto pro-
`vide a further understanding of the invention and are incor-
`porated in and constitute a part of this specification, illustrate
`embodiments of the invention, and together with the descrip-
`tion serve to explain the principles of the invention.
`FIG. 1 showsa wireless communication system according
`to an exemplary embodimentofthe present invention.
`FIG. 2 shows a case of simultaneously using 5 CCs having
`a frequency band of 20 MHz or lower in a wireless commu-
`nication system according to an exemplary embodiment of
`the present invention.
`FIG. 3 shows a downlink control information activation
`
`30
`
`35
`
`40
`
`group according to an exemplary embodimentofthe present
`invention.
`
`FIG. 4 shows a case where a missing region is generated
`whendata is received using the control information activation
`indicator of FIG.3.
`
`45
`
`FIG. 5 shows a control information activation group and a
`data information activation group in downlink according to
`an exemplary embodimentofthe present invention.
`FIG.6 is a flowchart for configuring a control information
`activation group according to an exemplary embodimentof
`the present invention.
`FIG. 7 showsa structure of an activation group for each
`layer according to an exemplary embodimentof the present
`invention.
`
`FIG. 8 is a flowchart for configuring a data information
`activation group according to an exemplary embodimentof
`the present invention.
`FIG. 9 shows an example of transmitting an activation
`indicator individually for each CC of an activation group
`according to an exemplary embodimentof the present inven-
`tion.
`
`FIG. 10 is a flowchart for transmitting an activation indi-
`cator in an eNB according to an exemplary embodimentofthe
`present invention.
`FIG. 11 is a schematic view ofa transmitter for transmitting
`an activation indicator according to an exemplary embodi-
`mentof the present invention.
`
`50
`
`55
`
`60
`
`65
`
`40
`
`FIG.13 is a flowchart for receiving an activation indicator
`according to an exemplary embodimentof the present inven-
`tion.
`
`FIG. 14 showsa receiver for receiving an activation indi-
`cator according to an exemplary embodimentof the present
`invention.
`
`FIG. 15 is a diagram for explaining the concept ofa pri-
`mary serving cell (PSC) and a secondary serving cell (SSC).
`FIG. 16 shows a MACprotocol data unit (PDU)including
`an activation indicator according to an exemplary embodi-
`mentof the present invention.
`FIG. 17 shows a MACcontrol element including anacti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 18 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 19 shows a MACcontrol element including anacti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 20 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 21 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 22 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 23 shows a MACcontrol element including anacti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 24 shows a MACcontrol element including anacti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 25 shows a MACcontrol element including anacti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 26 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 27 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 28 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 29 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 30 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 31 shows a MACcontrol element including anacti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 32 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`FIG. 33 shows a MACcontrol element including an acti-
`vation indicator according to an exemplary embodiment of
`the present invention.
`
`
`
`40
`
`

`

`US 8,538,411 B2
`
`DESCRIPTION OF EXEMPLARY
`EMBODIMENTS
`
`The invention is described morefully hereinafter withref-
`erence to the accompanying drawings, in which exemplary
`embodimentsofthe invention are shown. This invention may,
`however, be embodied in manydifferent forms and should not
`be construed as limited to the embodimentsset forth herein.
`
`20
`
`8
`7
`nication