HUE031812T2 - Módosított elõtag struktúra IEEE 802.11A kiterjesztésekhez, 802.11A eszközök és nagyobb adatsebességû, MIMO vagy egyébként kiterjesztett eszközök közötti koegzisztencia és együttmûködési képesség lehetõvé tételére - Google Patents

Módosított elõtag struktúra IEEE 802.11A kiterjesztésekhez, 802.11A eszközök és nagyobb adatsebességû, MIMO vagy egyébként kiterjesztett eszközök közötti koegzisztencia és együttmûködési képesség lehetõvé tételére Download PDF

Info

Publication number
HUE031812T2
HUE031812T2 HUE05754373A HUE05754373A HUE031812T2 HU E031812 T2 HUE031812 T2 HU E031812T2 HU E05754373 A HUE05754373 A HU E05754373A HU E05754373 A HUE05754373 A HU E05754373A HU E031812 T2 HUE031812 T2 HU E031812T2
Authority
HU
Hungary
Prior art keywords
field
sequence
preamble
ikus
prefix
Prior art date
Application number
HUE05754373A
Other languages
English (en)
Inventor
Zelst Albert Van
Vincent K Jones
Nee Richard D J Van
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of HUE031812T2 publication Critical patent/HUE031812T2/hu

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W99/00—Subject matter not provided for in other groups of this subclass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Claims (6)

  1. ' muwaüs Ikkl 8ö3,Us kiterjesiidsÄtk, IÖ|,Ööa eszMuök 4s nagyobb aöstseb®$$®Ä biliytô vagy egyébként kit«r|es*t*%t eszkóíók k8*8tM b8*g*K*t*tHl* #s egyi>ttm8kódé*t kejsassbg Ehetővé tételére IsSlSílÉlmllpfí^ö^lök :i 1, 6yakorló szekvencia, amely N számú olölagol {300. 310, 3¾ S&amp;0, 970, 1000. 1100) 5.esí't.í;):'’:;í>:, amelyek ki)· íbtékőléo egy $82,11 szabvány saerinb, vezeték néíkúli kommunikációs rendszer legalább N számú antennájától %tërm?zé àsvitelre vannak konfigurálva, mledegyik M számé olőisg (900, 910, 3S0, SSO, S?Ο, 1800, 2100} isr-kalroaz; egy rövid gyakorié szekvencia mezét {970,1005]; egy hosszú gyakorló szekvencia mezét {910, 1015,1050); és egy jel mezét (915,I03S); mmt jiíítemmmi hogy. az hl számú előtagok közöl legalább egy jei mezője {935, 1Ö3S] ás « rövid gyakorló szekvencia mező {970, 10®) '««,ς,,Η,Ιί .^rt.uwíW 10'^ 'CV'wi egaHíb egy vMg.se Ms**a *<'s.Vkez-k a- N silfói :®1Ítklók kézül egy másik előtag vonatkozó révkl gyakorié szekvencia mezőiéhez {920, iÚÖS), hosszú gyakorié szekvencia mezőjéhez (930, 1015, 1030] és jel mezőjéhez (III. 1035} képest^ s|s ahol rnlnderi égpk előtag UQÖ8 1100) i<sruifrioccgys Í02;ilasssis?|éy ||t3Ídeöoíál{aiMrésn {1050, lll#és py öilsédikrssií (1060, iüíbl. amely legalább egy olyan mezőt tartalmaz, amely osegkülőrtböaethéío s S03.il» szabvány által definiált elóisgiéi. 3* A* 1 igénypont szerinti gyakorié szekvencia, amely tartalmaz legalább «l^^il^ífé-'^á^töl.k.'^lfzl'ó^la*' gon maívek mindegy** legalább egy éké es egy második edoarkennáséi »sárgiaaé átylleibaz ¥So kssy|fur|{ye.i ahoi: a második előlivé};) yöid gyákodé szakvebil :ιΜ1§% $28) sikitús éltéllásáí rehditeik sz első Äsg (910,1 rövid gyakorié szekvenclá metéltéhez kepesh: a második előleg ($102) hosszé gyakaié szekvencia mezője (938) sllilúS eltolással rőhdefkszik az eisé előtag iélC.kJ bosszú gyakorió szekvencia mezőjéhez kepest; és s második előleg (910*) jel mezője {935) okükos eltolással rendelkezik az eHS előtag (910;) jel mezőjéhez hé~ fást li A I igénypont szénné gyakono szekvencm, ahm a második előtag {910,) tévid gyakorié szekvencia mezője {930) 400 ns kié-artarnú dhiikiss eltolással mMW^ zsk az első eidtag (91G*) reked gyakorié szekvencia merőjéhez képéyl; é éilsodsk előleg {910¾) hosszé gyakorló székvézséla mezője léöíioy időtartam:; ciklikoy eltolással rgadblkkzlk képest; és 3 második «IdïSg }«} ÍTinZöi» iShiSî ÎéÛO :¾ sClOîeiteO'. v > hUss eltolás«! sei; -!s's\^:sS .ív' <'i Ö ró'.;; is| y ?5;·0ίξ>-heí képest A A t igepypopt szinti gyakorié szekvencia, ameiy tataim«* továbbá egy harmadik ei&amp;íepz Çâi#^ amely legalább egy harmadik *rt<kmum«átót származó atveeihei van kcmOgytfgivs,. ahol ä harmadik eidtag $100 :ov*-J gyakorié szekverxia mm]« (9K0 ciklikus eitoiéssai ás«*yfc«zik sz sisö élltag (918.0 rövid gyakorié szskeendámsztpiheí: Mpesiy &amp; harmadik rHétag (910;) hosszé gyakorié szekvencia mezőiéi:®?! §1ita| P^llmró gyakorié uekvwm·mezdíébez-képestí és lei; mezeje {§3§Hlkiikos .ebolásssi WMkHfeetiK az eisd eidtag |3ΐ00 Jet mezőéhez ké» pest. Ai A 4. Igénypont szerímí-gyaMili^l^ipejÄ A második eiétag {3X0>j rövid gyÄrlö szekvsrvda mszSjs i9?.Cd 200 tvs időtartamú ciklikus eltolással rsmdelke· Ä sz eM előtag f9Kh} rövid gyakorié szekvencia mezőéhez épest és a hsripsdlk előtag IflúO royfd lyákodi szekvencia mezője 400 ns időtartamú ciklikus eltolással fenddfezÉv*gi*feàlbfôt«f|SstO^: rövid gyakorid s*ek· yeôdià (TidzdlIbdîJcéoest; a második siötag (»20«) hosszú gyakorid szekvencia mezßpt iOSd nS sdftäitsmo iklkos eiilássai medetkezfk zz első «idtag (Siüj bosszú gyakcvlè szekvencia mezőjéhez kepeu à;, a harmadik előtag (9 Ah; boss;» gyakorid srekvehoa mezőse 2100 ns idôtanamû ciklikus «itotôssal rendeiiEerJkaz^^e^l^lliOji veneia mezőiéhez képes·, és a második «idtag $20,} jui mezője 1050 ns Időtartamú: siklikus «itéiassai rendelkezik as első eidtag (9sty }«i nverd^hez képest, és ahol a harmadik előtag 19.11¾} jel mezője SÎ00 m -détartamú ciklikus elvoissssl réoclélke-2ik as első siötag (9I0J jel mezőjéhéz képest szakveaeis, smgíy lartalmaz továbbá egy zségysdlk időiégöt }9Ι&amp;§igmipy legalább egy negyedik adóantennától származó átvitelhez van konfigurál*. ahol a negyedik előtag {$%&amp;&amp; kdyi#.:|yakÄ:Äk^m}a-'ÄzdidipM} cea&amp;dteiásssá.-reftdiíikeíik az z?Hö elöta# (91 ü,|"Äi gyakorlő szekvencia mszijihöz kapóst; d negyedik előtag fSilsi bpsszá gyökorjő szekveAda itfs$&amp;ptë| öiÄuiieitoi^*«oÄÄ!sz-^sd eidtäg. (9.1¾} hosszú gyakorié szekvencia mezőjéhez képest; és s negyedik SÄsg (310¾) jeém«sdle (935í élklikps el|diá*dai fendelkdzd< az eisd eidtag (OÍÖy i® mezdiéhet képest 2. A 6. igénypom szar inti gyakorló szskyenda, ahol a mlsöáík ëSSag: ·ΛΊ «időtartamú ciklikus «Mllssd phdéikm ií s: első előleg (3,0,} rövid gyakori szekvencia mezőjéhez épesl és a harmadik előleg O&amp;M rövid gyakorid ••$j*kv«KW mezöle 400 ns ddtartamo oknkus eltolással rendelkezik ex eh« előleg (SlO-J rövid gyakorló szaké ysxKÍ!? mezedéhez kepesl: és a negyedik eioiag ISKöl fovm gyakorló szekvencia mezője 600 ms iciői&amp;riamö 'dkhlwSp^lf.rp^Éidklï «b$ eiőiaa (920,} rôv>d gyakorló szekvencia meaôjênez képest* s znâsodik «dőtag (âiô,} hosszú gyakorié szekvencta me*ö|e 1050 ns időtartamú titkos eltolással rendelkeïlk 5%i &amp;%ts *tcnag (9i OJ hosuù gyakorié szekvencia mexOjéhet kapást, és a Harmadik előtag i9A0-|ifzdsscú gyákddő szekvancia mezője 2108 ns időtartamú ciklikus eliosassei rendelkezi a? első előtag }9lû<} hoss#:gfáknÉlis2!#r· vencla mezőjéhez. képest és s «egyedik előtag (010*1 Hosszú gyakorié szekvencia mezője 2400 ns időtartamú ciklikus eliokHssi rendelkezik s? első előtag (9.10,) Hosszú gyakorló szekvencia mezőjéhez képest; és a második előtag (910,) Jel mezője 1050 n$ időtartamú cikhkus eltolással rendelkezik az első előtag fS10j}; £8 mezőjéhez képest, és ahol a harmadik előtag |öl05; pd mezőse 2100 ns időtartamú ciklikus okolással eeodélke-ok at aisé ekkag \93.0 , ?; összeséhez képest vt a rogymds· előtag lh 10.0 ,ei mezője 24(Kt időtart emu cikl.kns altoiassakraodeiksztk at első előtag (510¾} Jé« mezőidhez képest. i; A 2-?. liédfiiddtők Itirmelylké Stéripti gyakorid stekveoda, ahol az előtagok mindegyike tartalmat: továbbá egprkÿàdélttîlildïêtviHafri mezőt (926.· .101.0}, amely a reked gyakorié szekvencia méP |1CI0S} és á kdsszö gyakéd ló szekvencia mező (1015} között van elrendezve. 9. A 8. Igénypont szerinti gyakorid szekvencia* éhdl tsz előtagok mindegyike továbbá tartal!tiiÿ|V^:.|R^^k: Hosszú gyakoHé szefezenria mezőt (1050) és egy rdlsodik védelmi intervallum mezőt (1Q2S}. ahol § masoŐÉ bosszú gyakorié pékvénsis mező (130) a második yidélml intervallum mmá11025} és a jel mező (1035) kSjptj; vast ereodexve 10, A 9. igénypont szer irtó g vakot ló szekvencia, amely söo, második és hat madú. elötago; tartalmaz,, es legalább egy első, második és harmedik adóantenna tói szérmazóatvitelhez ven konfigurálva, ahol: 3 Nsrinsdík dötag mo,} rövid'i^Ä^ys#^p«liii;i(SlM reddslksik a másodi: siitag (dlöj rovid gyakorló szekyénci^liioéképtstó e harmadik; d|ÍlgM0iá;^:b&amp;^4tpkőrlés2«fe?enci8 mexője (850) ciklikus eltolással rendelkezik a második doiag mü,! első hosszú gyakorid szekvencia mezőiéhez képest; 3 Harmadik előtag 1910,1 második hosszú gyakorló Isékvénda n«Úja (SáÖ|f:'fed(löltMi$MI| döfj# elitig: lúld-s! második hosszo gyakorid szekvencia mezőjéhez kéipdStj a harmadik előtag (9!<y második Hosszú gyakorló szekvencia mező)« ciklikus eltolással tmdelkztzik a második eiitlfHosszú gyéköflpszokydúcls mézőjihszképé^^ 3 ^úsddlk előtag |Mö| jéi meziis|0Sj ciiikus «Itoíássel rendelkezik a második előtag 1920,} je! mezőjéhez képest it, A 6. igénypont sserino gyatsano äp-.'U<-nch an^dy dsA n-äsothk, harmadik P nggy^dtk okhagcn Ont«;r\;i, ^ «mîi*V fepsééb «i$d, második, harmadik és negyedik adóantennáktól ssármasd Ityitdhervso jtoôrüg«r|^} äshOll Í nagyedik aldrag {9.10,} rövid gyakorid siefevsmcla $Pj$ik t#2^;=:îyÎÈÏIÎE.||$:::-^|'fifjygS^sl:^®iadfèïîêe*ik-lütemaÄÄh îsg (910.0 rövid gyakori;1.' rrrövendii meiójénei képesül y nsgyedsk &amp;iSrsg [9100 0H0 hossid gyakodó siskvsnda nvnŐO? (930; ciklikus eltolással reodéikesik 3 harmadik s^tsg \9lön ds-S h&amp;rsaó gyakorid siekvenda maadgíha; képest: «negyed*Älsg {§.1Ό;· második hossíú gyakodd ||3É hhditóttepéida? első bÂilSl^il második oessio gyakodo saekventta meïdjêhe* «épesî, a negyedik előtag (910¾) másod* hosstú gyakorid siekvonsie mead)« ciMikusiei&amp;Ässat refidstoiil a harmadik-a-ôîag (910^} másndik hossaú gyakorid ssekyêîigiemPdJéhe? képest: és n negyedik ©Idisf (Möy) Isi moiéN akildfs bsorörölkdlötag (91¾} Jel meid)éhei ké- )»í |2 A 8-11. jgénypomofc bármelyik® sisrini gyesmid öekvedm ahoi a védőim» inlefvaPdröi^dÄpl^ Î$M 4929) :ï hoss*u gyakori stakvenciák idé-áoma?p.ijöiki^S$áll9#;vsnnak előállítva* ÄByd^ma'hossaö gyakorié szekvenciáknak csupán 3 pârhuïamç* vagy t^^àipÉÂd^d^iteafet áhrtólásábbt, &amp; A B-%2. fénypontok dáímeiyifc« xxorlmi gyakorié szekvencia, a védelmi intervallum (325, iölö, ,|Í2S> IyS: psidbtptgmúak. ;|#k gyakorló seekvedsdb é #vid;fyd)iOÄsas^snaa merök (829,1IK5; a ps időtartamúak, a hossad gyakorló saok^dO^i nwőh (939,IöÍ$#16lÖ} 6,4 uikiddtsíiamöak; Is a jei mesé (936,1039} 4 μ$ időtartamú,
  2. 13. Aa ölö2j§'f#fh^i||d4^jidtÄI#lÄI gy^if$i.4ïÂrîéiis,.éhot minden egyes elbtag fíödö, 13fP már sodh rshoioak ilOda. iikOi msgkuseobditoyher&amp;meaoie egy ksssrö gyakorid srekvends meiS és egy |ei meid ( 1039} kpîüî iegaiâbli egyet ssn^màt 10 A; «tftt# igénypontok bármelyike saerlnt)gyakorid ssskéineiayah# egy ahn t-ldtát ÇlOOCkj másodikrésíéeek 066O} ^ogköldntKdröttí«íó meidfe « 802.11« srekvaoy megölető n-orösn páröifsh tengaláitaígneglíttlroídil hangokat tanaidig?, esi eg\ második előtag (3(1)¾} röásötssk fésténak {1000} megkúídnbökíptmii 01016)0 a 802, llgpg&amp;vgny ôtéilélt-tó metö» hsOiíhihsk:: a (1,6, -Íj 0, 1, Q* ;I,,,.:}.siakvonciával: töfténd Sïplàsa 0t)àn oscghatardäd®: haoi^k«! tartsimai t?. As s-lésó Igénypontok bármelyike stsomi gyakmió ssekventha, amt**- egy előtagban slhalysskgdd és egy 20 MHt-es tsatornát stfogo ö-t áivivóf: át hóxtnáh ártóks-k<H jebmtó hosmt gyokorlô s?skv*nci;if faltaim«*, ahol é* kivívok egymáslóí 312,5 KHs távolságban η^οΑνηοοΑ gs és. sí alábbiak sserlfit varrnak rneghatárnrva: jL'UJ.M.U -1; %:!j*is ti"!, 1 ' VI* % V^P 0. 1,-1,-1. 1: 1.-1,1.-1.1.-5.-1,-1.-1,-1, K :MA 1,4, Ί5Ι, 1: μ,ι.ί,-ι,ί,ι,-1)
  3. 38. As «kfeô igénypontok bármely*« gyakorló uekvenda, M &amp;W 20 háHses óxátóftáí átfogó 64 alvivóh át hasonló értékeket jeleníó tesssù gyakorló ssakveodái tartalmas ét fc»ppf mini á 80211 ssáhvériy által meghatárewott hosts rartotó *»05$χύ gyakorló ssskvsndábao elhatym-kçdô nullától eltérd hangok ssáma, 18· 's*eaSlftti gyakorló .txskyortáa., amely egy előtagba« elhelyoskad&amp;ás agy 48 MH?-<?s csatornát átfogó 328 aívlvőn át hátinál! s-rtékakot jítktníó hoavsé gyakorló ssekvenöát tartalmas, shot as stylvOk egymástól 312,5 KH* {àvol^ÂiyhiS^^^^^IÔI# áláhólskssgrhtt: yáhóákMeghsfárosya: P>-M>1,1, 1,1,1,-1,-1, Î, 1.- t . 1.-1. 1> 1, 1:,-1.,:1., 1vp-1,1,5 -1,1.-1, 1, 1,1,1, -1, t.-1, -1. 1,1,-t. 1, -1, 1,-1,-1. -1,-1:-1, I, 1.-1,-1. 1,-1,1,-1,1, 1, 1, 1, -1,-1,-1.1, -1, 0, -1. 1,1. 1.1. 1. 1,-1, -1, 1, 1. -I, 1. -1 1. 1. 1, 1, 1. 1: -1.-1, 1, 1, -1, 1, -1, 1. 1: 1, 1, -1, 1,-1, -1, 1,1,-1, 1,-1, 1,-1,-1,-1. -1,-1, 1,. 1: Ί. "1, ixApi;,. -1 i 1¾ -í, 4, As okisó igénye ontok bármely** sss-fíntl gyakorid sseWenos. ameOy ®gy »lótagban eióolyeskedö ss agy 48 MHsot csatornát átfogó 123 ai vívót« ár hősies! t értékeket rtrtnrt) hossit! gyakorló ssekxenoát tortáimon amely tohh nyilától feltárd hanggoi rondoAsok, mtnt a 802.11 ssatívány öltői meghatárosoír hostá tartósé kos?to gyakorló siokvsnr.isbon távó nultétós aUfcrÓ hanggpíárhé,:
  4. 23, As Ä0 IgéhyponMl bármelyike isetwtl gyakorló sittkvercis, amely kvaómüra f&amp;isblilentyóséses sntsdu-1l«Éë tMhh&amp;|ra yppstkosé biteket hordosó jel megot; tattslmas. 12, A 21. igénypont «érinti gyakorló Mekventía, ahol as említet? jel metö továbbá 16 hites CRC rhesőttSrlál- rtisr. 2,3. At etóső Igénypontok bármelyike «érinti gyakorlósss-kvenda, amely 24 bitnél töiih bites jel mosót tartól- ms?:,
  5. 24. As eiöaö Igényem ok btnrnty»* «arlntt gyakorló lihkygnois, ahol g vsakveneta mesA^étten iévó hangok kótöi ct.opán a CK" hangplneils értálfiék. 11»? Siîlï'âs, srrisfk as báíradyte S2«rm«f •gyÎîteriô'SxeMwrssk-.sIMiMtàsà'rs tföftstkök# &amp;jfsrá$ kipêsëkkt tarussmsx
  6. 26. Sefsnfeès.,· amàiy iököst taf^mss «* t-M* l&amp;iéfpmtâ WmsmmnM sSMkk désira. 't?y ika 1-^4, sgéS^îÇnïSÉ laàmmly&amp;e sssdaís gy^rl§-s^v5gnd»,:.am«ly «gy vamék rÎëîkük saskas afek véts?-?© van taïgas rlkis, 2S. kUerjesHatt n#kykkéaaÎkëk, âmelV s 'P, si«aykön^®2kafeíig^ak«r!ö: ssekvesms siâteléfe «m φ kklîTias$â Îëvs,
HUE05754373A 2004-05-27 2005-05-27 Módosított elõtag struktúra IEEE 802.11A kiterjesztésekhez, 802.11A eszközök és nagyobb adatsebességû, MIMO vagy egyébként kiterjesztett eszközök közötti koegzisztencia és együttmûködési képesség lehetõvé tételére HUE031812T2 (hu)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57560804P 2004-05-27 2004-05-27

Publications (1)

Publication Number Publication Date
HUE031812T2 true HUE031812T2 (hu) 2017-08-28

Family

ID=35463621

Family Applications (1)

Application Number Title Priority Date Filing Date
HUE05754373A HUE031812T2 (hu) 2004-05-27 2005-05-27 Módosított elõtag struktúra IEEE 802.11A kiterjesztésekhez, 802.11A eszközök és nagyobb adatsebességû, MIMO vagy egyébként kiterjesztett eszközök közötti koegzisztencia és együttmûködési képesség lehetõvé tételére

Country Status (9)

Country Link
US (3) US7539260B2 (hu)
EP (1) EP1751890B1 (hu)
JP (1) JP4838241B2 (hu)
DK (1) DK1751890T3 (hu)
ES (1) ES2623882T3 (hu)
HU (1) HUE031812T2 (hu)
PL (1) PL1751890T3 (hu)
PT (1) PT1751890T (hu)
WO (1) WO2005119922A2 (hu)

Families Citing this family (219)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8743837B2 (en) * 2003-04-10 2014-06-03 Qualcomm Incorporated Modified preamble structure for IEEE 802.11A extensions to allow for coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices
US7916803B2 (en) 2003-04-10 2011-03-29 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
US8000223B2 (en) 2004-04-12 2011-08-16 Broadcom Corporation Method and system for multi-antenna preambles for wireless networks preserving backward compatibility
WO2005107121A1 (en) * 2004-04-28 2005-11-10 Samsung Electronics Co., Ltd. Method and apparatus for generating preamble sequence for adaptive antenna system in orthogonal frequency division multiple access communication system
ES2623882T3 (es) * 2004-05-27 2017-07-12 Qualcomm Incorporated Estructura de preámbulo modificado para ampliaciones del IEEE802.11A para permitir la coexistencia e interoperabilidad entre dispositivos 802.11A y dispositivos con mayor tasa de transmisión de datos, MIMO o con otro tipo de ampliaciones
JP4163659B2 (ja) * 2004-06-10 2008-10-08 株式会社東芝 無線送信装置及び無線送信方法
US8619907B2 (en) * 2004-06-10 2013-12-31 Agere Systems, LLC Method and apparatus for preamble training in a multiple antenna communication system
US7660362B2 (en) * 2004-06-18 2010-02-09 Broadcom Corporation Wireless local area network system using space-time block coding (STBC) having backward compatibility with prior standards
WO2006002310A2 (en) * 2004-06-22 2006-01-05 Conexant Systems, Inc. Legacy compatible spatial multiplexing systems and methods
US8077592B2 (en) * 2004-06-22 2011-12-13 Intellectual Ventures I Llc Packet processing systems and methods
EP1768294B1 (en) * 2004-06-28 2015-02-18 Hera Wireless S.A. Apparatus for transmitting signals
JP2006050573A (ja) * 2004-06-28 2006-02-16 Sanyo Electric Co Ltd 送信方法および装置ならびに受信方法および装置
US7646703B2 (en) 2004-07-27 2010-01-12 Broadcom Corporation Backward-compatible long training sequences for wireless communication networks
DE602005005115T2 (de) * 2004-07-27 2009-03-12 Broadcom Corp., Irvine Verfahren und Anordnung für kombinierte drahtlose Breitbandkommunikationen
JP3754441B1 (ja) * 2004-09-10 2006-03-15 三洋電機株式会社 受信方法ならびに装置およびそれを利用した通信システム
US7826547B2 (en) * 2004-10-26 2010-11-02 Broadcom Corporation Mixed mode preamble for MIMO wireless communications
US8737189B2 (en) * 2005-02-16 2014-05-27 Broadcom Corporation Method and system for compromise greenfield preambles for 802.11n
US7447185B2 (en) * 2004-12-29 2008-11-04 Intel Corporation Transmitting and protecting long frames in a wireless local area network
US8774327B2 (en) * 2005-01-28 2014-07-08 Broadcom Corporation Adjustable RF receiver
EP1864517A4 (en) * 2005-03-14 2013-08-21 Atmel Corp METHOD AND APPARATUS FOR OPERATING A PERSONAL NETWORK USING A RECOVERY PROTOCOL THAT ENHANCES COEXISTENCE WITH A WIRELESS LOCAL NETWORK
US7826408B1 (en) 2005-03-14 2010-11-02 Ozmo, Inc. Apparatus and method for integrating short-range wireless personal area networks for a wireless local area network infrastructure
JP4342477B2 (ja) * 2005-05-31 2009-10-14 株式会社東芝 無線送信装置及び無線受信装置
US7558537B2 (en) * 2005-06-07 2009-07-07 Broadcom Corporation Modified preamble for programmable transmitter
KR20080032033A (ko) * 2005-06-24 2008-04-14 코닌클리케 필립스 일렉트로닉스 엔.브이. 무선 네트워크에서 시공간 터보 채널 코딩/디코딩을 위한방법 및 장치
JP4841256B2 (ja) * 2005-06-28 2011-12-21 三洋電機株式会社 無線装置
US7711061B2 (en) * 2005-08-24 2010-05-04 Broadcom Corporation Preamble formats supporting high-throughput MIMO WLAN and auto-detection
US7729378B2 (en) * 2005-09-02 2010-06-01 Broadcom Corporation Robust high-throughput frame for low-quality wireless channel conditions
JP4624423B2 (ja) * 2005-09-06 2011-02-02 三洋電機株式会社 受信装置
US7944991B2 (en) * 2005-10-27 2011-05-17 Georgia Tech Research Corporation Constrained clipping for peak-to-average power ratio (crest factor) reduction in multicarrier transmission systems
US7813448B2 (en) * 2005-10-31 2010-10-12 Broadcom Corporation Cyclic delay diversity in a wireless system
US7489670B2 (en) * 2005-12-27 2009-02-10 Celeno Communications Ltd. Device, system and method of uplink/downlink communication in wireless network
US7751353B2 (en) * 2005-12-29 2010-07-06 Celeno Communications (Israel) Ltd. Device, system and method of securing wireless communication
US20070153754A1 (en) * 2005-12-29 2007-07-05 Nir Shapira Method, apparatus and system of spatial division multiple access communication in a wireless local area network
US20070153760A1 (en) 2005-12-29 2007-07-05 Nir Shapira Method, apparatus and system of spatial division multiple access communication in a wireless local area network
US7656965B2 (en) 2005-12-29 2010-02-02 Celeno Communications (Israel) Ltd. Method of secure WLAN communication
US7672400B2 (en) 2005-12-29 2010-03-02 Celeno Communications (Israel) Ltd. Method of secure WLAN communication
US9071435B2 (en) 2005-12-29 2015-06-30 Celeno Communications Ltd. System and method for tuning transmission parameters in multi-user multiple-input-multiple-output systems with aged and noisy channel estimation
US7570624B2 (en) 2005-12-29 2009-08-04 Celeno Communications (Israel) Ltd. Device, system and method of uplink/downlink communication in wireless network
US8891497B1 (en) * 2006-03-14 2014-11-18 Atmel Corporation Method and apparatus for coordinating a wireless PAN network and a wireless LAN network
US9130791B2 (en) 2006-03-20 2015-09-08 Qualcomm Incorporated Uplink channel estimation using a signaling channel
US7742770B2 (en) 2006-03-24 2010-06-22 Agere Systems Inc. Method and apparatus for improved antenna isolation for per-antenna training using variable scaling
TWI415398B (zh) * 2006-03-24 2013-11-11 Lg Electronics Inc 用於多輸入多輸出傳輸系統之減少管理負擔的方法
US7945214B2 (en) * 2006-03-24 2011-05-17 Lg Electronics Inc. Method of reducing overhead for multi-input, multi-output transmission system
US8494084B1 (en) 2006-05-02 2013-07-23 Marvell International Ltd. Reuse of a matrix equalizer for the purpose of transmit beamforming in a wireless MIMO communication system
JP5044165B2 (ja) 2006-08-14 2012-10-10 株式会社東芝 マルチアンテナ無線通信システムにおける送信機、受信機及び方法
EP2060015B1 (en) * 2006-08-18 2017-06-07 Fujitsu Limited New and legacy wireless communication device coexisting amble sequence
US20080101482A1 (en) * 2006-10-26 2008-05-01 General Instrument Corporation Method and apparatus for refining MIMO channel estimation using the signal field of the data frame
US8725142B1 (en) 2006-10-31 2014-05-13 Marvell International Ltd. Channel scanning method and apparatus
JP2010516143A (ja) * 2007-01-15 2010-05-13 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 無線通信方法及び無線通信ネットワーク
EP2130308B1 (en) 2007-03-22 2018-12-19 Marvell World Trade Ltd. Variable codebook for mimo system
US8223872B1 (en) 2007-04-04 2012-07-17 Marvell International Ltd. Reuse of a matrix equalizer for the purpose of transmit beamforming in a wireless MIMO communication system
WO2008134420A2 (en) 2007-04-25 2008-11-06 Marvell World Trade Ltd. Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems
US8199841B1 (en) 2007-04-26 2012-06-12 Marvell International Ltd. Channel tracking in a wireless multiple-input multiple-output (MIMO) communication system
US8130858B1 (en) 2007-05-30 2012-03-06 Marvell International Ltd. Method and apparatus for implementing transmit diversity in OFDM systems
EP2592766B1 (en) 2007-07-18 2020-04-22 Marvell World Trade Ltd. Access point with simultaneous downlink transmission of independent data for multiple client stations
CN101755498B (zh) 2007-07-18 2016-09-28 马维尔国际贸易有限公司 一种无线网络和客户站
US8908667B1 (en) 2007-09-07 2014-12-09 Marvell International Ltd. Method and apparatus for antenna path selection for multiple wireless communication components
US9253742B1 (en) * 2007-11-29 2016-02-02 Qualcomm Incorporated Fine timing for high throughput packets
KR100914321B1 (ko) * 2007-12-03 2009-08-27 한국전자통신연구원 다중 안테나를 구비한 무선통신 시스템의 프레임 구성 방법
KR20090060956A (ko) * 2007-12-10 2009-06-15 한국전자통신연구원 프리앰블을 이용한 네트워크 통신 방법 및 네트워크 디바이스
US8072959B2 (en) * 2008-03-06 2011-12-06 Issc Technologies Corp. Generating method for short training field in IEEE 802.11n communication systems
US8055230B1 (en) 2008-03-25 2011-11-08 Marvell International Ltd. Low noise amplifier gain adaption based on a received signal strength indication of bluetooth and wlan signals
JP4582193B2 (ja) 2008-05-23 2010-11-17 ソニー株式会社 受信装置、及び受信方法
GB2461684A (en) * 2008-06-27 2010-01-13 Vodafone Plc Transmitting communication mode information between network elements
US8982889B2 (en) 2008-07-18 2015-03-17 Marvell World Trade Ltd. Preamble designs for sub-1GHz frequency bands
US8351519B2 (en) 2008-08-15 2013-01-08 Qualcomm Incorporated Embedding information in an 802.11 signal field
US20100046656A1 (en) * 2008-08-20 2010-02-25 Qualcomm Incorporated Preamble extensions
US20100290449A1 (en) 2008-08-20 2010-11-18 Qualcomm Incorporated Preamble extensions
US9252862B2 (en) 2008-09-17 2016-02-02 Qualcomm Incorporated MIMO preamble for initial access with an unknown number of transmit antennas
US9590832B1 (en) 2008-09-23 2017-03-07 Marvell International Ltd. Sub-carrier adaptation in multi-carrier communication systems
CN101764627B (zh) * 2008-12-26 2014-05-07 株式会社Ntt都科摩 确定上行链路的解调导频序列的方法、终端以及上行链路系统
BRPI0924212B1 (pt) 2009-01-13 2018-06-26 Huawei Technologies Co., Ltd. Método e dispositivo para enviar e adquirir informação
US8392781B2 (en) * 2009-01-13 2013-03-05 Texas Instruments Incorporated Hybrid-ARQ (HARQ) with scrambler
US8335167B1 (en) 2009-02-02 2012-12-18 Marvell International Ltd. Refining beamforming techniques for phased-array antennas
WO2010099040A1 (en) 2009-02-24 2010-09-02 Marvell World Trade Ltd. Techniques for flexible and efficient beamforming
US9924512B1 (en) 2009-03-24 2018-03-20 Marvell International Ltd. OFDMA with block tone assignment for WLAN
EP2420023B1 (en) 2009-04-13 2014-08-27 Marvell World Trade Ltd. Physical layer frame format for WLAN
US8599803B1 (en) 2009-05-01 2013-12-03 Marvell International Ltd. Open loop multiple access for WLAN
US8437440B1 (en) 2009-05-28 2013-05-07 Marvell International Ltd. PHY frame formats in a system with more than four space-time streams
US20100311432A1 (en) * 2009-06-05 2010-12-09 Broadcom Corporation Cluster parsing for signaling within multiple user, multiple access, and/or mimo wireless communications
US8917784B2 (en) * 2009-07-17 2014-12-23 Qualcomm Incorporated Method and apparatus for constructing very high throughput long training field sequences
US8385443B2 (en) * 2009-07-17 2013-02-26 Qualcomm Incorporated Constructing very high throughput long training field sequences
US8571010B1 (en) 2009-07-21 2013-10-29 Marvell International Ltd. Simultaneous uplink transmission in a wireless network
US9706599B1 (en) 2009-07-23 2017-07-11 Marvell International Ltd. Long wireless local area network (WLAN) packets with midambles
US9077594B2 (en) 2009-07-23 2015-07-07 Marvell International Ltd. Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network
US9596715B1 (en) 2009-07-23 2017-03-14 Marvell International Ltd. Long wireless local area network (WLAN) packets with midambles
JP5646624B2 (ja) 2009-07-29 2014-12-24 マーベル ワールド トレード リミテッド 通信チャネルを介して送信するための物理層（ｐｈｙ）データユニットを生成する方法、および物理層装置
US9503931B2 (en) * 2009-08-12 2016-11-22 Qualcomm Incorporated Enhancements to the MU-MIMO VHT preamble to enable mode detection
US20110038441A1 (en) * 2009-08-12 2011-02-17 Cambridge Silicon Radio Limited Transmission mode detection
US8472381B1 (en) 2009-08-14 2013-06-25 Marvell International Ltd. Methods and apparatus for antenna spoofing
US8660497B1 (en) 2009-08-18 2014-02-25 Marvell International Ltd. Beamsteering in a spatial division multiple access (SDMA) system
CN102484567B (zh) 2009-08-21 2016-02-10 阿瓦尔有限公司 基于分组的ofdm系统中的报头重复
US8665949B1 (en) 2009-09-09 2014-03-04 Marvell International Ltd. Methods and apparatus for transmission of data at different modulation and/or coding rates
JP2013506322A (ja) * 2009-09-29 2013-02-21 富士通株式会社 パイロット付加方法及び装置
KR101783927B1 (ko) 2009-10-23 2017-10-10 마벨 월드 트레이드 리미티드 Ｗｌａｎ을 위한 훈련 시퀀스 지시자
JP5718350B2 (ja) 2009-11-03 2015-05-13 マーベル ワールド トレード リミテッド 通信デバイスでの省電力
US8472383B1 (en) 2009-11-24 2013-06-25 Marvell International Ltd. Group management in multiuser communications
US8886755B1 (en) 2009-12-09 2014-11-11 Marvell International Ltd. Method and apparatus for facilitating simultaneous transmission from multiple stations
KR20110082685A (ko) * 2010-01-12 2011-07-20 삼성전자주식회사 다중 사용자 다중 입출력 시스템의 프리엠블 생성 방법 및 상기 방법이 채용된 데이터 전송 장치와 단말
US9031122B2 (en) * 2010-01-29 2015-05-12 Qualcomm Incorporated Reducing phase errors on a communication device
US9444577B1 (en) 2010-04-05 2016-09-13 Marvell International Ltd. Calibration correction for implicit beamformer using an explicit beamforming technique in a wireless MIMO communication system
US8971178B1 (en) 2010-04-05 2015-03-03 Marvell International Ltd. Calibration correction for implicit beamformer using an explicit beamforming technique in a wireless MIMO communication system
US9397785B1 (en) 2010-04-12 2016-07-19 Marvell International Ltd. Error detection in a signal field of a WLAN frame header
US8665908B1 (en) 2010-05-11 2014-03-04 Marvell International Ltd. Signaling guard interval capability in a communication system
KR101923200B1 (ko) 2010-06-16 2018-11-29 마벨 월드 트레이드 리미티드 통신 네트워크에서 하향링크 다중 사용자 ｍｉｍｏ 구성을 위한 대안적인 피드백 방법 및 시스템
US9021341B1 (en) 2010-06-16 2015-04-28 Marvell International Ltd. LDPC coding in a communication system
US9001908B2 (en) 2010-07-01 2015-04-07 Marvell World Trade Ltd. Orthogonal frequency division multiplexing (OFDM) symbol formats for a wireless local area network (WLAN)
WO2012003355A1 (en) 2010-07-01 2012-01-05 Marvell World Trade Ltd. Modulation of signal field in a wlan frame header
WO2012021449A1 (en) 2010-08-10 2012-02-16 Marvell World Trade Ltd. Sub-band feedback for beamforming on downlink multiple user mimo configurations
US8891597B1 (en) 2010-08-17 2014-11-18 Marvell International Ltd. Calibration for implicit transmit beamforming
WO2012030585A2 (en) 2010-09-01 2012-03-08 Marvell World Trade Ltd. Link adaptation a communication network
US9178651B2 (en) 2010-09-29 2015-11-03 Marvell World Trade Ltd. Stream parsing in a communication system
US8731090B2 (en) 2010-10-04 2014-05-20 Marvell World Trade Ltd. Compressed feedback format for WLAN
KR101923201B1 (ko) 2010-10-07 2019-02-27 마벨 월드 트레이드 리미티드 무선 통신 시스템의 톤 재정렬
US9300511B2 (en) 2011-01-05 2016-03-29 Qualcomm Incorporated Method and apparatus for improving throughput of 5 MHZ WLAN transmissions
EP2668736B1 (en) 2011-01-28 2018-04-25 Marvell World Trade Ltd. Physical layer frame format for long range wlan
US9130727B2 (en) 2011-02-04 2015-09-08 Marvell World Trade Ltd. Control mode PHY for WLAN
US9674317B2 (en) 2011-02-10 2017-06-06 Marvell World Trade Ltd. Multi-clock PHY preamble design and detection
CN103597883B (zh) 2011-04-18 2017-12-26 马维尔国际贸易有限公司 减少无线通信系统中的功率消耗
US9385848B2 (en) 2011-05-20 2016-07-05 Microsoft Technology Licensing, Llc Short-range nodes with adaptive preambles for coexistence
US9401832B2 (en) 2011-05-20 2016-07-26 Microsoft Technology Licensing, Llc Long-range nodes with adaptive preambles for coexistence
KR102005055B1 (ko) 2011-05-26 2019-07-29 마벨 월드 트레이드 리미티드 장거리 wlan을 위한 사운딩 패킷 포맷
CN103718596B (zh) 2011-06-08 2018-02-23 马维尔国际贸易有限公司 用于低数据速率wlan的高效传输
WO2013012807A1 (en) 2011-07-15 2013-01-24 Marvell World Trade Ltd. Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network
US9078169B2 (en) 2011-08-18 2015-07-07 Marvell World Trade Ltd. Signal field design for WLAN
EP2752066B1 (en) 2011-08-29 2016-09-14 Marvell World Trade Ltd. Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network
US9398615B1 (en) 2011-09-07 2016-07-19 Marvell International Ltd. Carrier sensing and symbol timing in a WLAN system
US9154969B1 (en) 2011-09-29 2015-10-06 Marvell International Ltd. Wireless device calibration for implicit transmit
US9487441B2 (en) 2011-10-28 2016-11-08 Corning Incorporated Glass articles with infrared reflectivity and methods for making the same
US9350583B2 (en) 2011-11-02 2016-05-24 Marvell World Trade Ltd. Method and apparatus for automatically detecting a physical layer (PHY) mode of a data unit in a wireless local area network (WLAN)
CN104115541B (zh) 2011-11-02 2018-01-12 马维尔国际贸易有限公司 用于无线通信的方法和设备
US9155027B1 (en) 2011-11-23 2015-10-06 Marvell International Ltd. 802.11 enhanced distributed channel access
US9351333B1 (en) 2011-11-30 2016-05-24 Marvell International Ltd. Long wireless local area network (WLAN) packets with midambles
US8767873B2 (en) * 2011-12-02 2014-07-01 Qualcomm Incorporated Systems and methods for communication over a plurality of frequencies and streams
JP5259809B2 (ja) * 2011-12-05 2013-08-07 株式会社東芝 マルチアンテナ無線通信システムにおける送信機、受信機及び方法
US9019991B1 (en) 2011-12-08 2015-04-28 Marvell International Ltd. Method and apparatus for detecting a packet in a WLAN system
JP6189330B2 (ja) 2012-01-13 2017-08-30 マーベル ワールド トレード リミテッド 方法および装置
EP2813042B1 (en) 2012-02-07 2021-04-07 Marvell Asia Pte, Ltd. Pilot sequence design for long range wlan
JP6168503B2 (ja) 2012-04-03 2017-07-26 マーベル ワールド トレード リミテッド 方法および装置
US9735855B2 (en) 2012-04-18 2017-08-15 Marvell World Trade Ltd. Method and apparatus for relaying communication between an access point and a station in a wireless network
US9445349B1 (en) 2012-04-18 2016-09-13 Marvell International Ltd. 802.11ah duty cycle based channel access priorities
US9226227B2 (en) 2012-06-29 2015-12-29 Marvell World Trade Ltd. Group based beacons
WO2014022693A1 (en) 2012-08-03 2014-02-06 Marvell World Trade Ltd. Multi-mode indication subfield in a signal field of a wireless local area network data unit
WO2014039616A1 (en) 2012-09-06 2014-03-13 Marvell World Trade Ltd. Efficient search of precoders in precoded mimo systems
US9414432B2 (en) 2013-04-03 2016-08-09 Marvell World Trade Ltd. Physical layer frame format for WLAN
US9325540B2 (en) 2013-04-10 2016-04-26 Marvell World Trade Ltd. Method and apparatus for mitigating interference in a wireless network through use of transmit beamforming
US10320459B2 (en) 2013-04-10 2019-06-11 Marvell World Trade Ltd. Method and apparatus for mitigating interference in a wireless network through use of transmit beamforming
WO2014205743A1 (zh) * 2013-06-27 2014-12-31 华为技术有限公司 长训练序列生成方法、发送信号方法和装置
US9843097B1 (en) 2013-07-08 2017-12-12 Marvell International Ltd. MIMO implicit beamforming techniques
US9071474B1 (en) 2013-07-25 2015-06-30 Marvell International Ltd. Systems and methods for suppressing interference in a wireless communication system
US9648620B2 (en) 2013-08-28 2017-05-09 Qualcomm Incorporated Tone allocation for multiple access wireless networks
WO2015038647A2 (en) 2013-09-10 2015-03-19 Marvell World Trade Ltd. Extended guard interval for outdoor wlan
US9629169B2 (en) 2013-09-16 2017-04-18 Marvell World Trade Ltd. Access point coordination for traffic control in wireless networks
US10194006B2 (en) 2013-10-25 2019-01-29 Marvell World Trade Ltd. Physical layer frame format for WLAN
US10218822B2 (en) 2013-10-25 2019-02-26 Marvell World Trade Ltd. Physical layer frame format for WLAN
CN105830410B (zh) 2013-10-25 2020-07-03 马维尔亚洲私人有限公司 一种用于生成用于经由通信信道传输的物理层数据单元的方法和装置
US10257806B2 (en) 2013-11-11 2019-04-09 Marvell World Trade Ltd. Medium access control for multi-channel OFDM in a wireless local area network
US9825678B2 (en) 2013-11-26 2017-11-21 Marvell World Trade Ltd. Uplink multi-user multiple input multiple output for wireless local area network
US9215055B2 (en) 2013-11-27 2015-12-15 Marvell World Trade Ltd. Medium access protection and bandwidth negotiation in a wireless local area network
KR102432307B1 (ko) 2013-11-27 2022-08-12 마벨 아시아 피티이 엘티디. 무선 로컬 영역 네트워크에 대한 직교 주파수 분할 다중 액세스
WO2015081269A1 (en) 2013-11-27 2015-06-04 Marvell Semiconductor, Inc. Sounding and tone block allocation for orthogonal frequency division multiple access (ofdma) in wireless local area networks
US9166660B2 (en) 2013-11-27 2015-10-20 Marvell World Trade Ltd. Uplink multi-user multiple input multiple output beamforming
US20150173118A1 (en) * 2013-12-18 2015-06-18 Qualcomm Incorporated Flexible extended signaling
US9935794B1 (en) 2014-03-24 2018-04-03 Marvell International Ltd. Carrier frequency offset estimation
US10142067B2 (en) 2014-04-16 2018-11-27 Marvell World Trade Ltd. Determining a number of orthogonal frequency division multiplexing (OFDM) symbols in a packet
US11855818B1 (en) 2014-04-30 2023-12-26 Marvell Asia Pte Ltd Adaptive orthogonal frequency division multiplexing (OFDM) numerology in a wireless communication network
KR102444203B1 (ko) * 2014-05-01 2022-09-19 마벨 아시아 피티이 엘티디. 멀티 클록 phy 프리앰블 설계 및 검출
WO2015168639A1 (en) 2014-05-02 2015-11-05 Marvell World Trade Ltd. Multiple user allocation signaling in a wireless communication network
US10164695B2 (en) 2014-05-09 2018-12-25 Marvell World Trade Ltd. Tone block and spatial stream allocation
US9596060B1 (en) 2014-05-09 2017-03-14 Marvell International Ltd. Tone block allocation for orthogonal frequency division multiple access data unit
CN106664187A (zh) * 2014-06-02 2017-05-10 马维尔国际贸易有限公司 高效正交频分复用（ofdm）物理层（phy）
JP6645676B2 (ja) 2014-06-11 2020-02-14 マーベル ワールド トレード リミテッド 無線通信システムにおける圧縮された直交周波数分割多重（ｏｆｄｍ）シンボル
WO2016014969A1 (en) 2014-07-24 2016-01-28 Marvell Semiconductor, Inc. Group acknowledgement for multiple user communication in a wireless local area network
WO2016027956A1 (ko) * 2014-08-21 2016-02-25 엘지전자 주식회사 무선랜 시스템에서 프리엠블 전송 방법
EP3188392B1 (en) * 2014-08-30 2018-11-14 Huawei Technologies Co., Ltd. Data transmitting method, channel estimation method and device
US10075226B2 (en) * 2014-10-03 2018-09-11 Qualcomm Incorporated Per stream and per antenna cyclic shift delay in uplink multi-user MIMO
US9804918B1 (en) 2014-10-10 2017-10-31 Marvell International Ltd. Method and apparatus for generating a PHY data unit
US10027449B2 (en) 2014-12-02 2018-07-17 Marvell World Trade Ltd. Signal fields in a high efficiency wireless local area network (WLAN) data unit
US10334571B2 (en) 2014-12-05 2019-06-25 Marvell World Trade Ltd. Trigger frame format for orthogonal frequency division multiple access (OFDMA) communication
US10390328B2 (en) 2014-12-05 2019-08-20 Marvell World Trade Ltd. Beamforming training in orthogonal frequency division multiple access (OFDMA) communication systems
WO2016112324A2 (en) 2015-01-08 2016-07-14 Marvell World Trade Ltd. Downlink signaling in a high efficiency wireless local are network (wlan)
US9826532B1 (en) 2015-02-09 2017-11-21 Marvell International Ltd. Orthogonal frequency division multiple access resource request
US10306603B1 (en) 2015-02-09 2019-05-28 Marvell International Ltd. Resource request for uplink multi-user transmission
US9674011B1 (en) 2015-02-10 2017-06-06 Marvel International Ltd. Auto-detection of repeated signals
WO2016164912A1 (en) 2015-04-09 2016-10-13 Marvell World Trade Ltd. Contention-based orthogonal frequency division multiple access (ofdma) communication
US10153857B1 (en) 2015-04-10 2018-12-11 Marvell International Ltd. Orthogonal frequency division multiple access protection
WO2016176096A1 (en) 2015-04-30 2016-11-03 Corning Incorporated Electrically conductive articles with discrete metallic silver layers and methods for making same
US10382598B1 (en) 2015-05-01 2019-08-13 Marvell International Ltd. Physical layer frame format for WLAN
US10181966B1 (en) 2015-05-01 2019-01-15 Marvell International Ltd. WiFi classification by pilot sequences
US9949259B2 (en) * 2015-05-07 2018-04-17 Qualcomm Incorporated System and method for transmitting data payload in WB SC, aggregate SC, duplicate SC, OFDM transmission frames
EP3849097A1 (en) 2015-06-08 2021-07-14 Marvell Asia Pte, Ltd. Explicit beamforming in a high efficiency wireless local area network
CN107926033A (zh) 2015-06-09 2018-04-17 马维尔国际贸易有限公司 用于由多个通信设备进行的同时上行链路传输的信道接入
US10038518B1 (en) 2015-06-11 2018-07-31 Marvell International Ltd. Signaling phy preamble formats
US10492221B1 (en) 2015-06-25 2019-11-26 Marvell International Ltd. Methods and apparatus for protecting transmissions in a wireless communication network
US10201009B1 (en) 2015-08-13 2019-02-05 Marvell International Ltd. Methods and apparatus for protecting transmissions in a wireless communication network
US10136435B1 (en) 2015-08-13 2018-11-20 Marvell International Ltd. Orthogonal frequency division multiplex data unit decoding
US10079709B2 (en) 2015-08-14 2018-09-18 Marvell World Trade Ltd. Physical layer data unit format for a wireless communication network
WO2017070393A1 (en) 2015-10-20 2017-04-27 Marvell World Trade Ltd. Acknowledgment data unit for multiple uplink data units
US11082888B2 (en) 2015-10-20 2021-08-03 Nxp Usa, Inc. Single acknowledgment policy for aggregate MPDU
US10742285B1 (en) 2015-11-13 2020-08-11 Marvell International Ltd. Explicit multiuser beamforming training in a wireless local area network
WO2017100741A1 (en) 2015-12-11 2017-06-15 Marvell World Trade Ltd. Signal field encoding in a high efficiency wireless local area network (wlan) data unit
CN108604961B (zh) 2015-12-15 2020-12-22 马维尔国际有限公司 用于在无线通信网络中通信的方法和通信设备
US10277376B2 (en) 2016-02-19 2019-04-30 Marvell World Trade Ltd. Acknowledgement of transmissions in a wireless local area network
US10313923B2 (en) 2016-02-19 2019-06-04 Marvell World Trade Ltd. Acknowledgement of transmissions in a wireless local area network
US10873878B2 (en) 2016-02-19 2020-12-22 Nxp Usa, Inc. Acknowledgement of transmissions in a wireless local area network
WO2017151932A1 (en) 2016-03-02 2017-09-08 Marvell Semiconductor, Inc. Multiple traffic class data aggregation in a wireless local area network
EP3443793A2 (en) 2016-04-12 2019-02-20 Marvell World Trade Ltd. Uplink multi-user transmission
CN109478966A (zh) 2016-04-14 2019-03-15 马维尔国际贸易有限公司 确定针对正交频分多址操作的信道可用性
WO2018222226A1 (en) * 2017-02-16 2018-12-06 Arizona Board Of Regents On Behalf Of The University Of Arizona A method for exploiting preamble waveforms to support device and network functionalities in wireless systems
US10541796B2 (en) 2017-06-09 2020-01-21 Marvell World Trade Ltd. Packets with midambles having compressed OFDM symbols
EP3685543A1 (en) 2017-09-22 2020-07-29 NXP USA, Inc. Determining number of midambles in a packet
CN109873781A (zh) * 2017-12-01 2019-06-11 晨星半导体股份有限公司 符合同轴电缆多媒体联盟标准的信号接收装置及其信号处理方法
WO2019132980A1 (en) * 2017-12-29 2019-07-04 Intel IP Corporation Enhanced signal detection for wireless communications
US10904059B2 (en) * 2018-11-02 2021-01-26 Qualcomm Incorporated Control channel for vehicle-to-everything (V2X) communication
US11095391B2 (en) 2018-12-19 2021-08-17 Nxp Usa, Inc. Secure WiFi communication
US11146311B2 (en) 2019-03-21 2021-10-12 Marvell Asia Pte, Ltd. Coordinated multi-user transmissions with multiple access points
CN111628833B (zh) * 2020-06-10 2022-02-08 桂林电子科技大学 基于卷积神经网络的mimo天线数目估计方法
CN113556157B (zh) * 2021-06-08 2022-11-08 西安电子科技大学 非高斯干扰下mimo系统发射天线数估计方法及系统
US12483287B1 (en) * 2022-12-14 2025-11-25 Amazon Technologies, Inc. Low-rate wireless personal area network (LR-WPAN) preamble detection in the presence of concurrently transmitted wireless signals

Family Cites Families (137)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9019487D0 (en) * 1990-09-06 1990-10-24 Ncr Co Carrier detection for a wireless local area network
JP2970347B2 (ja) 1993-09-28 1999-11-02 住友電装株式会社 コネクタ
EP0871253B1 (en) 1993-12-06 2001-12-12 Sumitomo Wiring Systems, Ltd. Lock detection connector
US5553064A (en) * 1994-04-05 1996-09-03 Stanford Telecommunications, Inc. High speed bidirectional digital cable transmission system
KR0138281B1 (ko) * 1995-03-17 1998-07-01 김광호 주파수 선택적 방해신호 검출장치 및 그 검출방법
CA2302289C (en) * 1996-08-29 2005-11-08 Gregory G. Raleigh Spatio-temporal processing for communication
US6055231A (en) * 1997-03-12 2000-04-25 Interdigital Technology Corporation Continuously adjusted-bandwidth discrete-time phase-locked loop
JP3290926B2 (ja) * 1997-07-04 2002-06-10 松下電器産業株式会社 送信ダイバーシチ装置
US6563858B1 (en) 1998-01-16 2003-05-13 Intersil Americas Inc. Method of performing antenna diversity in spread spectrum in wireless local area network
JP3626852B2 (ja) * 1998-05-29 2005-03-09 Ｋｄｄｉ株式会社 ダイバーシチ受信下での信号合成方法及び装置
US6304750B1 (en) * 1998-11-06 2001-10-16 Lucent Technologies Inc. Space-time diversity receiver for wireless systems
US6128330A (en) * 1998-11-24 2000-10-03 Linex Technology, Inc. Efficient shadow reduction antenna system for spread spectrum
US6184829B1 (en) * 1999-01-08 2001-02-06 Trueposition, Inc. Calibration for wireless location system
US6260167B1 (en) * 1999-02-23 2001-07-10 Advanced Micro Devices, Inc. Apparatus and method for deterministic receiver testing
US6721299B1 (en) * 1999-03-15 2004-04-13 Lg Information & Communications, Ltd. Pilot signals for synchronization and/or channel estimation
CN1474613A (zh) 1999-06-28 2004-02-11 哈里公司 移动通信系统中控制前向链路发送功率的方法
US6690715B2 (en) * 1999-06-29 2004-02-10 Intersil Americas Inc. Rake receiver with embedded decision feedback equalizer
US7024168B1 (en) 1999-07-07 2006-04-04 Telefonaktiebolaget L M Ericsson (Publ) Controlled antenna diversity
US20010033603A1 (en) * 2000-01-21 2001-10-25 Microgistics, Inc. Spread spectrum burst signal receiver and related methods
US6473467B1 (en) * 2000-03-22 2002-10-29 Qualcomm Incorporated Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
JP2001292128A (ja) 2000-04-05 2001-10-19 Oki Electric Ind Co Ltd 受信装置
US6512803B2 (en) * 2000-04-05 2003-01-28 Symmetricom, Inc. Global positioning system receiver capable of functioning in the presence of interference
US6661857B1 (en) * 2000-07-10 2003-12-09 Intersil Americas Inc. Rapid estimation of wireless channel impulse response
JP3595493B2 (ja) * 2000-07-10 2004-12-02 三菱電機株式会社 無線受信装置
WO2002019552A2 (en) * 2000-09-01 2002-03-07 Broadcom Corporation Satellite receiver
US20020105375A1 (en) 2000-09-20 2002-08-08 Vladislav Sorokine Method and apparatus for detecting finger merge condition in CDMA receiver
US7110378B2 (en) * 2000-10-03 2006-09-19 Wisconsin Alumni Research Foundation Channel aware optimal space-time signaling for wireless communication over wideband multipath channels
US7095754B2 (en) * 2000-11-03 2006-08-22 At&T Corp. Tiered contention multiple access (TCMA): a method for priority-based shared channel access
DE60042408D1 (de) * 2000-11-13 2009-07-30 Lucent Technologies Inc Kanalschätzung für Raumdiversitätskommunikationssystemen
CN1129237C (zh) * 2000-11-15 2003-11-26 华为技术有限公司 无线通信系统中数字波束形成方法、模块及其阵列接收机
SE0004403L (sv) 2000-11-29 2002-05-30 Ericsson Telefon Ab L M Metoder och anordningar i ett telekommunikationssystem
US7106709B2 (en) * 2000-11-29 2006-09-12 Telefonaktiebologet Lm Ericsson (Publ) Timing drift compensation in wireless packet-based systems
US20020065047A1 (en) 2000-11-30 2002-05-30 Moose Paul H. Synchronization, channel estimation and pilot tone tracking system
US6670310B2 (en) * 2000-12-12 2003-12-30 Cleveland Punch And Die Co High performance lubricant for metal punching and shearing
US20020111142A1 (en) * 2000-12-18 2002-08-15 Klimovitch Gleb V. System, apparatus, and method of estimating multiple-input multiple-output wireless channel with compensation for phase noise and frequency offset
US7006040B2 (en) * 2000-12-21 2006-02-28 Hitachi America, Ltd. Steerable antenna and receiver interface for terrestrial broadcast
US7230910B2 (en) * 2001-01-30 2007-06-12 Lucent Technologies Inc. Optimal channel sounding system
US20020160737A1 (en) 2001-03-06 2002-10-31 Magis Networks, Inc. Method and apparatus for diversity antenna branch selection
US6675012B2 (en) * 2001-03-08 2004-01-06 Nokia Mobile Phones, Ltd. Apparatus, and associated method, for reporting a measurement summary in a radio communication system
US7088782B2 (en) * 2001-04-24 2006-08-08 Georgia Tech Research Corporation Time and frequency synchronization in multi-input, multi-output (MIMO) systems
US7177369B2 (en) 2001-04-27 2007-02-13 Vivato, Inc. Multipath communication methods and apparatuses
US7103115B2 (en) 2001-05-21 2006-09-05 At&T Corp. Optimum training sequences for wireless systems
JP3636145B2 (ja) 2001-06-15 2005-04-06 ソニー株式会社 復調タイミング生成回路および復調装置
JP3599001B2 (ja) 2001-06-25 2004-12-08 ソニー株式会社 自動利得制御回路およびその方法、並びにそれらを用いた復調装置
JP2003018119A (ja) 2001-06-29 2003-01-17 Sony Corp 受信装置
US6754195B2 (en) * 2001-07-06 2004-06-22 Intersil Americas Inc. Wireless communication system configured to communicate using a mixed waveform configuration
EP1282257A1 (en) 2001-08-02 2003-02-05 Mitsubishi Electric Information Technology Centre Europe B.V. Method and apparatus for detecting data sequences
US7123662B2 (en) * 2001-08-15 2006-10-17 Mediatek Inc. OFDM detection apparatus and method for networking devices
US7190748B2 (en) * 2001-08-17 2007-03-13 Dsp Group Inc. Digital front-end for wireless communication system
US7269224B2 (en) * 2001-09-17 2007-09-11 Bae Systems Information And Electronic Systems Integration Inc. Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems
US7103116B2 (en) 2001-09-24 2006-09-05 Atheros Communications, Inc. Detection of a false detection of a communication packet
US7342973B2 (en) * 2001-09-26 2008-03-11 General Atomics Method and apparatus for adapting multi-band ultra-wideband signaling to interference sources
US7161987B2 (en) 2001-09-26 2007-01-09 Conexant, Inc. Single-carrier to multi-carrier wireless architecture
JP3880358B2 (ja) 2001-10-04 2007-02-14 シャープ株式会社 Ｏｆｄｍ復調回路及びこれを用いたｏｆｄｍ受信装置
US7269127B2 (en) * 2001-10-04 2007-09-11 Bae Systems Information And Electronic Systems Integration Inc. Preamble structures for single-input, single-output (SISO) and multi-input, multi-output (MIMO) communication systems
US7548506B2 (en) 2001-10-17 2009-06-16 Nortel Networks Limited System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design
JP2003163669A (ja) 2001-11-27 2003-06-06 Canon Inc 無線通信装置
JP3946987B2 (ja) 2001-11-28 2007-07-18 インターナショナル・ビジネス・マシーンズ・コーポレーション 複数バンド通信装置及びその通信方法
US7106784B2 (en) * 2002-01-25 2006-09-12 Sasken Communication Technologies Limited Universal rake receiver
US20040030530A1 (en) * 2002-01-30 2004-02-12 Kuo-Hui Li Apparatus and method for detection of direct sequence spread spectrum signals in networking systems
US7161996B1 (en) * 2002-02-05 2007-01-09 Airgo Networks, Inc. Multi-antenna wireless receiver chains with vector decoding
US6873662B2 (en) * 2002-02-14 2005-03-29 Interdigital Technology Corporation Wireless communication system having adaptive threshold for timing deviation measurement and method
JP2003319005A (ja) 2002-02-20 2003-11-07 Mitsubishi Electric Corp シンボルタイミング補正回路、受信機、シンボルタイミング補正方法、及び復調処理方法
US6687492B1 (en) * 2002-03-01 2004-02-03 Cognio, Inc. System and method for antenna diversity using joint maximal ratio combining
DE10210236B4 (de) 2002-03-08 2006-01-19 Advanced Micro Devices, Inc., Sunnyvale WLAN-Empfänger-Synchronisation
US6754194B2 (en) * 2002-03-18 2004-06-22 Thomson Licensing S.A. Method and apparatus for indicating the presence of a wireless local area network by detecting signature sequences
US7257165B2 (en) * 2002-04-18 2007-08-14 Gardner Steven H Method and apparatus for preamble detection and time synchronization estimation in OFDM communication systems
JP3885657B2 (ja) * 2002-05-10 2007-02-21 Ｋｄｄｉ株式会社 Ｏｆｄｍ信号の周波数誤差を補正する受信装置
JP4078883B2 (ja) 2002-05-29 2008-04-23 ソニー株式会社 受信装置、および端末装置
US7613248B2 (en) * 2002-06-24 2009-11-03 Qualcomm Incorporated Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems
SG111072A1 (en) 2002-07-03 2005-05-30 Oki Techno Ct Singapore Pte Receiver and method for wlan burst type signals
SG129231A1 (en) * 2002-07-03 2007-02-26 Oki Techno Ct Singapore Pte Receiver and method for wlan burst type signals
US7406102B2 (en) * 2002-07-03 2008-07-29 Freescale Semiconductor, Inc. Multi-mode method and apparatus for performing digital modulation and demodulation
US7212788B2 (en) * 2002-08-13 2007-05-01 Atheros Communications, Inc. Method and apparatus for signal power loss reduction in RF communication systems
US7369485B2 (en) * 2002-08-19 2008-05-06 Conexant, Inc. Wireless receiver for sorting packets
KR20050084561A (ko) 2002-09-17 2005-08-26 아이피알 라이센싱, 인코포레이티드 다중 패턴 안테나
US7787419B2 (en) * 2002-09-17 2010-08-31 Broadcom Corporation System and method for providing a mesh network using a plurality of wireless access points (WAPs)
EP1414208A1 (en) * 2002-10-21 2004-04-28 STMicroelectronics N.V. Synchronization using training sequences with a periodical structure
US7647069B2 (en) 2002-10-25 2010-01-12 Nxp B.V. Single oscillator DSSS and OFDM radio receiver
JP3779673B2 (ja) 2002-10-30 2006-05-31 株式会社東芝 中継装置及び通信システム
US7254196B2 (en) 2002-11-26 2007-08-07 Agere Systems Inc. Symbol timing for MIMO OFDM and other wireless communication systems
KR100479864B1 (ko) 2002-11-26 2005-03-31 학교법인 중앙대학교 이동 통신 시스템에서의 하향링크 신호의 구성 방법과동기화 방법 및 그 장치 그리고 이를 이용한 셀 탐색 방법
US20040105512A1 (en) 2002-12-02 2004-06-03 Nokia Corporation Two step synchronization procedure for orthogonal frequency division multiplexing (OFDM) receivers
US7394873B2 (en) * 2002-12-18 2008-07-01 Intel Corporation Adaptive channel estimation for orthogonal frequency division multiplexing systems or the like
US7349462B2 (en) * 2002-12-23 2008-03-25 International Business Machines Corporation Acquisition and adjustment of gain, receiver clock frequency, and symbol timing in an OFDM radio receiver
JP2004214726A (ja) 2002-12-26 2004-07-29 Sony Corp 無線通信アンテナ及び無線通信装置
US20040203383A1 (en) 2002-12-31 2004-10-14 Kelton James Robert System for providing data to multiple devices and method thereof
US7352688B1 (en) 2002-12-31 2008-04-01 Cisco Technology, Inc. High data rate wireless bridging
US7421046B2 (en) * 2002-12-31 2008-09-02 Vixs Systems Inc. Method and apparatus for signal decoding in a diversity reception system with maximum ratio combining
US7421276B2 (en) * 2003-04-09 2008-09-02 Nortel Networks Limited Method, apparatus and system of configuring a wireless device based on location
JP2004289373A (ja) 2003-03-20 2004-10-14 Tdk Corp 無線通信システム、無線端末装置及び通信方式の切替方法
JP4259897B2 (ja) 2003-03-25 2009-04-30 シャープ株式会社 無線データ伝送システム及び無線データ送受信装置
CN100576834C (zh) * 2003-03-28 2009-12-30 英特尔公司 用于ofdm符号定时同步的方法和装置
US7203245B1 (en) 2003-03-31 2007-04-10 3Com Corporation Symbol boundary detector method and device for OFDM systems
US7512083B2 (en) * 2003-04-07 2009-03-31 Shaolin Li Single chip multi-antenna wireless data processor
US7916803B2 (en) 2003-04-10 2011-03-29 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
US8743837B2 (en) * 2003-04-10 2014-06-03 Qualcomm Incorporated Modified preamble structure for IEEE 802.11A extensions to allow for coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices
US7453793B1 (en) * 2003-04-10 2008-11-18 Qualcomm Incorporated Channel estimation for OFDM communication systems including IEEE 802.11A and extended rate systems
EP1617568B1 (en) * 2003-04-21 2013-09-04 Mitsubishi Denki Kabushiki Kaisha Radio communication apparatus, transmitter apparatus, receiver apparatus and radio communication system
JP2004328267A (ja) 2003-04-23 2004-11-18 Canon Inc ネットワークシステム及びその制御方法
US20040240402A1 (en) * 2003-05-27 2004-12-02 Stephens Adrian P. Multiple mode support in a wireless local area network
US7239894B2 (en) 2003-05-30 2007-07-03 Microsoft Corporation Using directional antennas to enhance throughput in wireless networks
US7110350B2 (en) * 2003-06-18 2006-09-19 University Of Florida Research Foundation, Inc. Wireless LAN compatible multi-input multi-output system
JP4425857B2 (ja) 2003-06-27 2010-03-03 三菱電機株式会社 送信機、受信機および無線通信装置
US7595768B2 (en) * 2003-06-27 2009-09-29 Intel Corporation Switching schemes for multiple antennas
US7885177B2 (en) 2003-06-30 2011-02-08 Agere Systems Inc. Methods and apparatus for backwards compatible communication in a multiple antenna communication system using time orthogonal symbols
US7403556B2 (en) 2003-06-30 2008-07-22 Via Technologies Inc. Radio receiver supporting multiple modulation formats with a single pair of ADCs
US7969857B2 (en) * 2003-08-07 2011-06-28 Nortel Networks Limited OFDM system and method employing OFDM symbols with known or information-containing prefixes
US7586884B2 (en) * 2003-08-15 2009-09-08 Qualcomm Incorporated Joint packet detection in wireless communication system with one or more receiver
DE602004029906D1 (de) * 2003-08-27 2010-12-16 Wavion Ltd Wlan-kapazitäts-erweiterung durch verwendung von sdm
EP1661253A1 (en) 2003-08-29 2006-05-31 Koninklijke Philips Electronics N.V. System and method for energy efficient signal detection in a wireless network device
US7616698B2 (en) * 2003-11-04 2009-11-10 Atheros Communications, Inc. Multiple-input multiple output system and method
KR100938095B1 (ko) * 2003-11-19 2010-01-21 삼성전자주식회사 직교 주파수 분할 다중 방식을 사용하는 통신시스템에서 프리앰블 시퀀스 생성 장치 및 방법
JP4212548B2 (ja) * 2003-12-26 2009-01-21 株式会社東芝 無線送信装置、無線受信装置、無線送信方法及び無線受信方法
KR100582906B1 (ko) * 2003-12-27 2006-05-23 한국전자통신연구원 무선 랜 시스템을 위한 프리앰블 구성 방법 및 프레임동기 검출 방법
JP4005974B2 (ja) 2004-01-09 2007-11-14 株式会社東芝 通信装置、通信方法、および通信システム
US7339999B2 (en) * 2004-01-21 2008-03-04 Qualcomm Incorporated Pilot transmission and channel estimation for an OFDM system with excess delay spread
US7586881B2 (en) * 2004-02-13 2009-09-08 Broadcom Corporation MIMO wireless communication greenfield preamble formats
US7423989B2 (en) * 2004-02-13 2008-09-09 Broadcom Corporation Preamble formats for MIMO wireless communications
US7400643B2 (en) * 2004-02-13 2008-07-15 Broadcom Corporation Transmission of wide bandwidth signals in a network having legacy devices
TW200529605A (en) 2004-02-20 2005-09-01 Airgo Networks Inc Adaptive packet detection for detecting packets in a wireless medium
JP2005286868A (ja) * 2004-03-30 2005-10-13 Sanyo Electric Co Ltd 受信方法および装置
JP2005295239A (ja) * 2004-03-31 2005-10-20 Toshiba Corp 無線送信装置、無線受信装置、無線送信方法及び無線受信方法
JP4506248B2 (ja) 2004-04-02 2010-07-21 ソニー株式会社 同期装置及び同期方法
US8000223B2 (en) * 2004-04-12 2011-08-16 Broadcom Corporation Method and system for multi-antenna preambles for wireless networks preserving backward compatibility
US7733866B2 (en) * 2004-04-15 2010-06-08 Qualcomm Incorporated Packet concatenation in wireless networks
ES2623882T3 (es) * 2004-05-27 2017-07-12 Qualcomm Incorporated Estructura de preámbulo modificado para ampliaciones del IEEE802.11A para permitir la coexistencia e interoperabilidad entre dispositivos 802.11A y dispositivos con mayor tasa de transmisión de datos, MIMO o con otro tipo de ampliaciones
WO2006002310A2 (en) * 2004-06-22 2006-01-05 Conexant Systems, Inc. Legacy compatible spatial multiplexing systems and methods
US7733834B2 (en) 2004-07-19 2010-06-08 Ittiam Systems (P) Ltd. Frame detection method for 802.11b/g based WLAN systems
JP2006054705A (ja) * 2004-08-12 2006-02-23 Toshiba Corp 無線送信装置及び無線送信方法
US7826547B2 (en) * 2004-10-26 2010-11-02 Broadcom Corporation Mixed mode preamble for MIMO wireless communications
JP2006197375A (ja) 2005-01-14 2006-07-27 Sony Corp 受信方法及び受信機
US7599333B2 (en) * 2005-02-08 2009-10-06 Qualcomm Incorporated Wireless messaging preambles allowing for beamforming and legacy device coexistence
US7282617B2 (en) * 2005-03-31 2007-10-16 Chevron U.S.A. Inc. Process of making a highly stable aromatic alkylate suitable for use in making improved additives and surfactants
JP4342477B2 (ja) * 2005-05-31 2009-10-14 株式会社東芝 無線送信装置及び無線受信装置
US7610017B2 (en) * 2005-06-09 2009-10-27 Vixs Systems, Inc. Increased data rate transmissions of a wireless communication
US7856068B1 (en) 2005-06-28 2010-12-21 Ralink Technology Corporation Nested preamble for multi input multi output orthogonal frequency division multiplexing

Also Published As

Publication number Publication date
US7599332B2 (en) 2009-10-06
WO2005119922A3 (en) 2006-06-15
JP2008500783A (ja) 2008-01-10
US20050271157A1 (en) 2005-12-08
ES2623882T3 (es) 2017-07-12
DK1751890T3 (en) 2017-06-12
US7539260B2 (en) 2009-05-26
EP1751890B1 (en) 2017-03-01
WO2005119922A2 (en) 2005-12-15
EP1751890A4 (en) 2012-10-17
EP1751890A2 (en) 2007-02-14
US20050286474A1 (en) 2005-12-29
JP4838241B2 (ja) 2011-12-14
PT1751890T (pt) 2017-05-24
US8457232B2 (en) 2013-06-04
PL1751890T3 (pl) 2017-08-31
US20090238299A1 (en) 2009-09-24

Similar Documents

Publication Publication Date Title
EP1751890B1 (en) Modified preamble structure for ieee 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, mimo or otherwise extended devices
US8743837B2 (en) Modified preamble structure for IEEE 802.11A extensions to allow for coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices
US8611457B2 (en) Modified preamble structure for IEEE 802.11A extensions to allow for coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices
EP1415428B1 (en) Channel estimation in a multi carrier transmit diversity system
JP5062852B2 (ja) パイロット信号伝送の方法
KR100906285B1 (ko) 직교 주파수 분할 통신 시스템에서 공간-시간 블록 코딩
JP4816123B2 (ja) 無線通信装置及び無線通信方法
US20080192621A1 (en) Data Communication System and Data Transmitting Apparatus
JP2005536103A (ja) 広帯域ｏｆｄｍシステムにおけるジョイントチャネルおよび雑音変動推定
JP2004530330A (ja) 複数キャリア送信ダイバーシティ・システムの多重化方法
TWI389521B (zh) 用於在行動通訊系統中傳送／接收具有擴展訓練符號之信號的方法
CN100527645C (zh) 多载波发射分集系统中的信道估算方法和电路及收发信机
KR100790484B1 (ko) 직교 주파수 분할 다중을 위한 부분 응답 시그널링
CN101107792B (zh) 无线电设备
JP2005304040A (ja) 直交周波数分割多重接続システムにおける高速周波数ホッピングのための送受信装置
JP3891986B2 (ja) マルチキャリア伝送の方法および装置
JP4604659B2 (ja) 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
JP2004336769A (ja) 多重トーン通信システムにおける有効データ・トーン数を増加させる無線機器
KR101225649B1 (ko) 다중 안테나 통신시스템의 채널추정 장치 및 방법
KR20090056729A (ko) ＭＩＭＯ（Ｍｕｌｔｉｐｌｅ Ｉｎｐｕｔ ＭｕｌｔｉｐｌｅＯｕｔｐｕｔ） ＯＦＤＭ 시스템에서 채널 추정을 위한임펄스 심볼을 포함하는 데이터 송신 및 수신 방법,ＭＩＭＯ 방식의 ＩＰ(Ｉｍｐｕｌｓｅ Ｐｏｓｔｆｉｘ）ＯＦＤＭ 시스템
KR20090056727A (ko) Ｏｆｄｍ 시스템에서 채널 추정을 위한 최적 크기의 임펄스심볼을 포함하는 데이터 송신 방법, 및 임펄스 심볼에의한 채널 추정 방법