(19) United States
`(12) Patent Application Publication (10) Pub. No.: US 2017/0251460 A1
`AGIWAL et al.
`(43) Pub. Date: Aug. 31, 2017
`
`
`US 20170251460Al
`
`(54) APPARATUS AND METHOD FOR
`PERFORMING RANDOM ACCESS IN
`BEAM-FORMED SYSTEM
`
`(71) Applicant: Samsung Electronics Co., Ltd.,
`Suwon—si (KR)
`
`Inventors:
`
`(72)
`
`Anil AGIWAL, Suwon-si (KR);
`Youngbin CHANG, Anyang-si (KR);
`Nigam ANSHUMAN, Bangalore (IN)
`
`(21)
`
`Appl. No.:
`
`15/443,562
`
`(22)
`
`Filed:
`
`Feb. 27, 2017
`
`Related US. Application Data
`
`(60)
`
`Provisional application No. 62/300,333, filed on Feb.
`26, 2016, provisional application No. 62/334,660,
`filed on May 11, 2016.
`
`Publication Classification
`
`(51)
`
`Int. Cl.
`H04W 72/04
`H04W 76/04
`H04B 7/06
`(52) us. Cl.
`CPC ...... H04W 72/0406 (2013.01), H043 7/0617
`(2013.01), H04W 76/046 (2013.01)
`
`(2006.01)
`(2006.01)
`(2006.01)
`
`(57)
`
`ABSTRACT
`
`A method for performing a random access is provided. The
`method includes identifying a first downlink (DL) reception
`(RX) beam based on a measurement on a beam measure-
`ment signal,
`identifying a first uplink (UL) transmission
`(TX) beam corresponding to the identified first DL RX beam
`and transmitting at least one random access preamble for an
`RX sweeping at a base station, using the identified first UL
`TX beam based on a first power.
`
`But
`
`302
`‘J
`
`3113
`_/
`
`
`
`HHC Connection Reconfiguration
`[HF HACH Contig,
`
`3er cababilitv: P TX beams, M HX beams)
`
`
`
`311
`L1
`
`
`
`3173
`
`SeNB Addition neauesi
`
`
`
`
`lUE capability: v rx beams, it av beams]
`Alternate 11
`_
`HF anon CCTIfIQ may be
`
`
`SeNB Addition Heduest bolt
`312
`broadcaster] by arena.
`
`F
`[HF RACH Caniid
`Alternate 2: HF HITCH Cortiig
`SeNB caoabilitvi P TX beams, M BX beams]
`
`
`
`is divided in two baits: HF
`
`EACH Confid Common C HF
`
`EACH Config Dedicated. Common
`
`
`315
`into is broadcasted bv mm c
`
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`kg
`Dedicated into in dedicated
`
`SeNB Heconiio Comblete
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`
`
`
`
`Receive HACH Preamble transmitted using
`mii HACH Preamble using N TX beams,
`316DJ
`
`Trans
`
`
`
`it TX beams bv using it HX beams
`rebeat each TX beam M times
`SENH CEDEliJiliiV: M RX beams
`Sella capability: iii RX beams
`
`316
`
`UE cababilitvi it TX beams
`UE canabitiiv: N TX UBETI'IS
`
`L.\
`Beamformed EACH Preamble
`
`transmit BAH using P TX beams,
`reoeat each TX beam it times
`UE cababilitv: U RX beams
`
`SeNB caoabiiity: PTX beams
`
`
`
`which HRH is transmitted
`
`1
`
`SAMSUNG 1005
`
` RHC Connection Reconfiguration Complete
`
`3153
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`beams by using it RX beams
`itE canabiiitv: it HX beams
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`
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`317
`K’fi
`
`
`
`
`Heamiormed RAH {Tit Sill info loptionali] Silt or frame in 4
`
`SAMSUNG 1005
`
`1
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 1 0f 50
`
`US 2017/0251460 A1
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`FIG.
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`US 2017/0251460 A1
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`Patent Application Publication Aug. 31, 2017 Sheet 31 0f 50
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`US 2017/0251460 A1
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`Patent Application Publication Aug. 31, 2017 Sheet 32 0f 50
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`US 2017/0251460 A1
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`FIG. 22
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`33
`
`i l
`
`
`
`
`
`33
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 33 0f 50
`
`US 2017/0251460 A1
`
`FIG. 23
`
`P+nrbelta
`
`P+2*l]elta
`
`
`
`Q Check bi Measurement result and identity best bi BX beam
`
`RACH preamble transmission using UL TX beam reciprocal to best UL RX beam.
`4 TX beam is transmitted multiple times for HX Sweeping at BS.
`
`34
`
`34
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 34 0f 50
`
`US 2017/0251460 A1
`
`FIG. 24
`
`,
`
`START
`
`'
`
`determined UL TX beam and iii Power
`
`1 I
`
`i ii i
`
`Power Hamning = [Preamble Transmission
`Counter —1]* PowerRamdingSten
`IX Fewer = Mower Bamning
`
`Transmit PEACH nreambie dne er mniiinie times
`
`[for RX sweeping at BS) using
`
`/
`q YEA
`QR Successfuily receivev
`
`241.1;
`
`Random Access Success
`
`edueis MAX TX COUNTER?
`
`NO
`
`I
`
`I
`
`.
`.
`Preamble. TfaflSmi-SSMH QDUMB!’ =
`.
`.
`.
`.
`a
`Preamhie Transmissmn CUUHIBY + i
`
`I 2417
`J
`I’
`!
`
`END
`
`35
`
`35
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 35 0f 50
`
`US 2017/0251460 A1
`
`FIG. 25
`
`START
`
`'
`Preamble Transmission Counter = 1
`
`2am
`”T’
`
`.
`Determine the UL TX beam
`for PEACH transmission
`
`Power Rambino = lPreamble Transmission
`Counter —1 1* PowerRamointTSteD
`TX Power = P+Power Bombing
`
`.
`Transmit PEACH oreamble multiple times
`[for RX sweeping at BS) using
`determined Ul TX beam and TX Power
`
`2503
`-
`
`3/505
`
`2:507
`"4
`
`
`
`
`
`
`2:509
`
`YES
`
`.
`BAR Successfully received?
`
`
`
`
`
`, N0
`
`2513
`
`PRXCH transmitted for
`all 1111 beams at BS.O
`
`Preamble Transmission Counter
`euuals MAX TX COUNTER?
`
`YES '
`
`2519
`
`
`Preamble Transmission Counter =
`Preamble Transmission Counter + 1
`
`36
`
`1. P is initial Power
`2. MAX TX Counter
`
`configured by network
`
`2511
`
`Random Access Success
`
`2517
`
`Random ACCESS Fall
`
`36
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 36 0f 50
`
`US 2017/0251460 A1
`
`FIG. 26
`
`
`
`Atteth 1
`
`Miami 2
`
`Attemnt 3
`
`Attempt 4
`
`gig Check BL Measurement result and identify best Dt RX beam
`
`53;; EACH. bream_te transmissmn usmg UL TX beam rectbtbca! to best bl. BX beam.
`W T! beam as trans...ttted one time or multtbte tames fer ..X Sweebtng at 38
`
`[H]E; Beam is not changed
`
`m Beam is Changed
`
`37
`
`37
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 37 0f 50
`
`US 2017/0251460 A1
`
`FIG. 27
`
`START
`
`Preamble Transmission Counter = i
`
`Determine the m rx beam
`for PEACH transmission
`
`27m
`
`2703
`4
`
`1. P is initial Power
`2. MAX or counter
`configured by network
`
`2705
`
`2707
`
`Transmit PBACH oreembie one or muiiiule times
`[for RX sweeping at BS] using
`determined Ul TX beam and TX Power
`
`TX Power = P
`
`
`
`
`‘
`vas
`BAR Successiuiiir received?
`
`271 1
`#
`Random Access Success
`
`2715
`,J
`
`
`
`Random ACCESS Fail
`
`Preamble Transmission COUiTtBi
`
`Preamble Transmission Counter =
`
`Preamble iifliiSiiiiSSiDii CDUHiBI’ 4' 1
`
`euuais MAX TX COUNTER?
`
`2713
`
`YES
`
`2717
`
`2719
`
`
`
`
`
`Determine ihB Ui. TX beam TDi’ PEACH transmission
`
`2721
`
`IS beam changed?
`
`no
`
`21723
`
`iX POWBT = TX Power + PowerHamninQSieU
`
`END
`
`38
`
`38
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 38 0f 50
`
`US 2017/0251460 A1
`
`FIG. 28A
`
`Preamnie TISHSMiSSiOH Counter = 1
`
`
`
`
`for PEACH transmission
`
`1 PisiniiiaiPcwer
`2. MAX TX Counter
`
`configured by network
`
`2811
`
`Random Access Success
`
`5
`
`
`
`l
`
`i
`
`I
`
`I
`
`i
`
`isensmiteiiscncreameiecnecrmuiiieietimes
`
`determined HI. 1)! beam and iii Power
`
`[for RX sweeping at BS] using
`
`
`BAR Successiuiiy received?
`I
`
`l
`
`.
`
`
`PEACH iffii‘iSi’i‘iifiEG fOi
`ali RX beams at BS?
`
`
`
`‘z’ES
`
`39
`
`39
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 39 0f 50
`
`US 2017/0251460 A1
`
`FIG. 28B
`
`777777777777777777777777777777777777eenrmura
`
`2815
`
`
`Preamble Transmission 001!“th
`
`enuais MAX TX COUNTER?
`
`YES
`
`2617
`Random AGCGSS Fail
`
`
`2D
`.
`_
`Preamble Transmrssmn Counter =
`Preamble Transmission Counter + 1
`
`2819
`
`2821
`
`Determine the UI. TX beam for PEACH transmission
`
`2823
`
`YE8
`
`Q
`
`Is beam changed?
`
`no
`
`2825
`r4
`
`TX Power = TX POWBT + PowerfiamningSten
`
`END
`
`40
`
`40
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 40 0f 50
`
`US 2017/0251460 A1
`
`FIG. 29
`
`P+2tflelta
`
`P+Delta
`P+Deita
` ‘U
`
`,
`7/
`
`
` ‘.
`
`Attempt t
`Attempt 2
`Atteth 3 ’
`Attempt 4
`
` \\
`
`% A
`
`@ Check UL Measurement result and identify best DL RX beam
`
`/ EACH preamble transmission JSIHQ UL TX beam reciprocal to best iii BX beam
`i‘! heem is transmitted one time or multiple times for BX Sweeping at 88
`
`E Beam is not changed
`
`m Beam is changed
`
`41
`
`41
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 41 0f 50
`
`US 2017/0251460 A1
`
`FIG. 30A
`
`START
`
`Preamble Transmission Counter = i
`
`Determine the Ul TX beam
`for PRAEH transmission
`
`_
`TX Power ‘ P
`
`3001
`
`3003
`
`3005
`
`3007
`
`
`
`Transmit PEACH preamble one or multiple times
`[for BX sweeping at BS] using
`determined Ul TX beam and TX Power
`
`l. P is initial Power
`2. MAX TX Counter
`configured by network
`
`301 1
`
`3009
`
`
`
`Random Access Success RAH Successfully received?
`
`YES
`
`NO
`
`42
`
`42
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 42 0f 50
`
`US 2017/0251460 A1
`
`FIG. 30B
`
`iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii CONTINUE~~m~~ww—~m~~w~u~~w~
`
`I
`
`A 3013
`
`3015
`
`BGUBIS MAX TX COUNTER?
`
`Preamble Transmission Counter
`
`7
`
`Random ACCESS Fail
`
`
`
` l .n
`
`”U
`
`Preamble Transmission Counter =
`
`3917
`
`Preamble Transmission COUHIBF + ‘I
`
`3019
`
`; Determine the Ui. TX beam f0? PEACH transmission.
`‘—_|_________—l
`1
`at.)
`i
`:81
`IQ
`
`\ls beam changed?
`
`
`
`43
`
`43
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 43 0f 50
`
`US 2017/0251460 Al
`
`F i G . 3 1A
`
`START
`
`Preambie Transmission Counter = t
`
`Determine the UL TX beam
`for PRABH transmission
`
`TX Power 2 P
`
`
`Transmit PEACH breamble one or muitiole times
`[for BX screening at SS] using
`determined tit ix beam and iii Power
`
`
`3W1
`
`31 [)3
`
`3105
`
`3107
`,_/
`
`1. P is initial Power
`2. MAX TX Counter
`configured by network
`
`
`
`31.09
`
`3111
`
`.
`RAB Successfully received?
`
`YES
`
`Random Access Success
`
`”0
`
`3113_/
`
`
`
`PEACH transmitted for
`all RX beams at BS?
`
`YES
`
`44
`
`44
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 44 0f 50
`
`US 2017/0251460 A1
`
`FIG. 31B
`
`777777777777777777777777777777777777777 CONTlNUE"W"—---~~m"~~~-~"~mu“
`
`eauais a“ m 3011me / W
`
`
`
`Preamble Iransmissian UDUfltEi =
`Preamble Transmission Counter + 1
`
`
`i
`
`!I
`
`
`
`IS beam changed?
`
`pm
`TXPower:TXiner+PawerRamDingStep
`
`3325
`_
`
`!
`
`45
`
`i l ! i l l
`
`~
`
`7
`
`,
`
`45
`
`

`

`Patent Application Publication
`
`Aug. 31, 2017 Sheet 45 of 50
`
`US 2017/0251460 A1
`
`
`
`
`
`25me:38E853%,358%
`
`mm.05
`
`EngE5“anEggv:EggE
`
`522
`
`(J
`
`8%
`
`46
`
`
`
`mam?qam:can?masmam?E22%?=0:
`
`EmmaE@5325(Ja5%EmmaE8%
`
`:2
`
`46
`
`
`

`

`Patent Application Publication
`
`Aug. 31, 2017 Sheet 46 0f 50
`
`US 2017/0251460 A1
`
`3%
`
`Lemma
`
`5“mom
`
`CEmmaxx“9"
`
`.5“mum
`
`.55mm
`
`a:EmmmE.Eamm
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
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`
`47
`
`47
`
`
`
`
`
`

`

`Patent Application Publication
`
`Aug. 31, 2017 Sheet 47 of 50
`
`US 2017/0251460 A1
`
`“mm
`
`6E
`
`Emmaéa58
`
`55mm
`
`.55%
`
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`
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`
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`
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`
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`
`48
`
`48
`
`
`
`
`
`

`

`Patent Application Publication
`
`Aug. 31, 2017 Sheet 48 0f 50
`
`US 2017/0251460 A1
`
`mm.0;
`
`:1.“9iii.v.1;Ii!.VEmmim..EmmmEQEmmaé
`
`
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`
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`EmmmE.EmmaxxE255@53wa
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`
`49
`
`49
`
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 49 0f 50
`
`US 2017/0251460 A1
`
`FIG. 36
`
`3600
`
`3605
`
`
`
`
`CDMI’OHEI‘
`
`TFBHSCBNBF
`
`
`
`50
`
`50
`
`

`

`Patent Application Publication Aug. 31, 2017 Sheet 50 0f 50
`
`US 2017/0251460 A1
`
`FIG. 37
`
`3700
`f_.__ci_.___l
`!
`
`3205
`r____________L________1
`!
`I
`
`Transceiver
`
`L———-J
`
`Controller
`
`L_______________i
`
`51
`
`51
`
`

`

`US 2017/0251460 A1
`
`Aug. 31,2017
`
`APPARATUS AND METHOD FOR
`PERFORMING RANDOM ACCESS IN
`BEAM-FORMED SYSTEM
`
`CROSS-REFERENCE TO RELATED
`
`APPLICATION(S)
`
`[0001] This application claims the benefit under 35 U.S.C.
`§119(e) of a US. provisional patent application filed on Feb.
`26, 2016 in the US. Patent and Trademark Office and
`assigned Ser. No. 62/300,333, and of a US. provisional
`patent application filed on May 11, 2016 in the US. Patent
`and Trademark Office and assigned Ser. No. 62/334,660, the
`entire disclosure of each of which is hereby incorporated by
`reference.
`
`TECHNICAL FIELD
`
`[0002] The present disclosure relates to wireless commu-
`nication technologies. More particularly, the present disclo-
`sure relates to a filter bank multicarrier (FBMC) modulation-
`based signal transmitting method, signal receiving method
`and device.
`
`BACKGROUND
`
`To meet the demand for wireless data traffic having
`[0003]
`increased since deployment of 4th-generation (4G) commu-
`nication systems, efforts have been made to develop an
`improved 5th-generation (5G) or pre-5G communication
`system. Therefore, the 5G or pre-5G communication system
`is also called a ‘beyond 4G network’ or a ‘post long term
`evolution (LTE) System’. The 5G communication system is
`considered to be implemented in higher frequency (mm-
`Wave) bands, e.g., 60 GHZ bands, so as to accomplish higher
`data rates. To decrease propagation loss of the radio waves
`and increase the transmission distance, the beamforrning,
`massive multiple-input multiple-output
`(MIMO),
`full
`dimensional MIMO (FD-MIMO), array antenna, an analog
`beam forming, large scale antenna techniques are discussed
`in 5G communication systems. In addition, in 5G commu-
`nication systems, development for system network improve-
`ment is under way based on advanced small cells, cloud
`radio access networks
`(RANs), ultra-dense networks,
`device-to-device (D2D) communication, wireless backhaul,
`moving network, cooperative communication, coordinated
`multi-points (CoMP), reception-end interference cancella-
`tion and the like. In the 5G system, hybrid frequency shift
`keying (FSK) and quadrature amplitude modulation (QAM)
`modulation (FQAM) and sliding window superposition cod-
`ing (SWSC) as an advanced coding modulation (ACM), and
`filter bank multi carrier (FBMC), non-orthogonal multiple
`access (NOMA), and sparse code multiple access (SCMA)
`as an advanced access technology have been developed.
`[0004] The Internet, which is a human centered connec-
`tivity network where humans generate and consume infor-
`mation, is now evolving to the Internet of things (IoT) where
`distributed entities, such as things, exchange and process
`information without human intervention. The Internet of
`
`everything (IoE), which is a combination of the IoT tech-
`nology and the big data processing technology through
`connection with a cloud server, has emerged. As technology
`elements, such as “sensing technology”, “wired/wireless
`communication and network infrastructure”, “service inter-
`face technology”, and “Security technology” have been
`demanded for IoT implementation, a sensor network, a
`
`machine-to-machine (M2M) communication, machine type
`communication (MTC), and so forth have been recently
`researched. Such an IoT environment may provide intelli-
`gent Internet technology services that create a new value to
`human life by collecting and analyzing data generated
`among connected things. IoT may be applied to a variety of
`fields including smart home, smart building, smart city,
`smart car or connected cars, smart grid, health care, smart
`appliances and advanced medical services through conver-
`gence and combination between existing information tech-
`nology (IT) and various industrial applications.
`[0005]
`In line with this, various attempts have been made
`to apply 5G communication systems to IoT networks. For
`example, technologies, such as a sensor network, MTC, and
`M2M communication may be implemented by beamform-
`ing, MIMO, and array antennas. Application of a cloud RAN
`as the above-described big data processing technology may
`also be considered to be as an example of convergence
`between the 5G technology and the IoT technology.
`[0006]
`In the recent years several broadband wireless
`technologies have been developed to meet the growing
`number of broadband subscribers and to provide more and
`better applications and services. The second generation
`wireless communication system has been developed to pro-
`vide voice services while ensuring the mobility of users.
`Third generation wireless communication system supports
`not only the voice service but also data service. In recent
`years, the fourth wireless communication system has been
`developed to provide high-speed data service. However,
`currently,
`the fourth generation wireless communication
`system suffers from lack of resources to meet the growing
`demand for high speed data services.
`[0007] A method of providing a generally high data trans-
`mission rate includes a method of providing communication
`using a wider frequency band and a method of increasing
`frequency usage efficiency. However, it is very difficult to
`provide a higher average data rate through the latter method.
`This is because communication technologies of a current
`generation provide frequency usage efficiency close to a
`theoretical limit and thus, it is very difficult to increase the
`frequency usage efficiency up to that or more through a
`technical improvement. Accordingly, it can be said that a
`feasible method for increasing the data transmission rate is
`a method of providing data services through the wider
`frequency band. At this time, the thing to consider