【文章內(nèi)容簡介】 52Any1, 3, 5, 7, 9140Any0, 1, 2, 3, 4, 5, 6, 7, 8, 946N/AN/AN/A150Even9472Even9161Even1483Even1171Even4493Even4181Even7503Even7191Any1513Any1201Any4523Any4211Any7533Any7221Any1, 6543Any1, 6231Any2 ,7553Any2 ,7241Any3, 8563Any3, 8251Any1, 4, 7573Any1, 4, 7261Any2, 5, 8583Any2, 5, 8271Any3, 6, 9593Any3, 6, 9281Any0, 2, 4, 6, 860N/AN/AN/A291Any1, 3, 5, 7, 961N/AN/AN/A30N/AN/AN/A62N/AN/AN/A311Even9633Even9對于具有前導(dǎo)格式04的幀結(jié)構(gòu)2，在一個UL幀上可能有多個隨機(jī)接入資源，取決于UL/DL配置。，其中配置索引對應(yīng)于一個特定前導(dǎo)格式結(jié)合，PRACH密度值 和版本序號。 幀結(jié)構(gòu)2的隨機(jī)接入配置（前導(dǎo)格式04）PRACH 配置索引前導(dǎo)格式密度每10 ms版本PRACH 配置索引前導(dǎo)格式密度每10ms版本0003222101332102023421130103522040113623050123724060203825070213926080224030903041311003142321103243310120404431113041453201404246330150504734016051484017052494118060504219061514102010524112111534202212544302311055440241115645025120574602613027140281502916030203121。每個格式表示一個特定隨機(jī)接入資源的位置，其中為給定時間瞬間的頻率資源索引，分別表示該資源是否在所有無線幀，偶數(shù)無線幀，或奇數(shù)無線幀中再發(fā)生， 分別表示是否隨機(jī)接入資源位于前半幀或后半幀，是前導(dǎo)開始的上行子幀編號，從連續(xù)兩個上行下行轉(zhuǎn)換點(diǎn)之間的第一上行子幀開始計(jì)數(shù)，除前導(dǎo)格式4（前導(dǎo)格式4總是在UpPTS傳輸且定義為（*））。隨機(jī)接入前導(dǎo)格式03的開始應(yīng)該與相應(yīng)的上行子幀的開始一致，在UE處假定時間提前為0。隨機(jī)接入前導(dǎo)格式4應(yīng)該開始于UE處UpPTS末尾前的[]。每個PRACH配置的隨機(jī)接入時機(jī)應(yīng)該先被分配時間再分配頻率，如果時分復(fù)用不足以容納一個PRACH配置的所有時機(jī)，需要一個在時域不重疊的特定密度值。對前導(dǎo)格式03，頻分復(fù)用應(yīng)該根據(jù)下式進(jìn)行：其中為上行資源塊數(shù)，分配給考慮的PRACH時機(jī)的第一物理資源塊，prachFrequencyOffset 為PRACH的第一可用物理資源塊，表示為一個物理資源塊編號（由高層配置且滿足）。 對前導(dǎo)格式4，頻分復(fù)用應(yīng)該根據(jù)下式進(jìn)行： 其中，是系統(tǒng)幀數(shù)，是一個無線幀中DL和UL轉(zhuǎn)換點(diǎn)數(shù)。每個隨機(jī)接入前導(dǎo)占據(jù)一個帶寬，對應(yīng)于兩種幀結(jié)構(gòu)的6個連續(xù)資源塊。表 幀結(jié)構(gòu)2的上行隨機(jī)接入前導(dǎo)在時域和頻域的映射（* UpPTS）PRACH 配置索引(見表 )UL/DL配置(見表 )01234560(0,1,0,2)(0,1,0,1)(0,1,0,0)(0,1,0,2)(0,1,0,1)(0,1,0,0)(0,1,0,2)1(0,2,0,2)(0,2,0,1)(0,2,0,0)(0,2,0,2)(0,2,0,1)(0,2,0,0)(0,2,0,2)2(0,1,1,2)(0,1,1,1)(0,1,1,0)(0,1,0,1)(0,1,0,0)N/A(0,1,1,1)3(0,0,0,2)(0,0,0,1)(0,0,0,0)(0,0,0,2)(0,0,0,1)(0,0,0,0)(0,0,0,2)4(0,0,1,2)(0,0,1,1)(0,0,1,0)(0,0,0,1)(0,0,0,0)N/A(0,0,1,1)5(0,0,0,1)(0,0,0,0)N/A(0,0,0,0)N/AN/A(0,0,0,1)6(0,0,0,2)(0,0,1,2)(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,1,0)(0,0,0,2)(0,0,0,1)(0,0,0,1)(0,0,0,0)(0,0,0,0)(1,0,0,0)(0,0,0,2)(0,0,1,1)7(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,1,0)N/A(0,0,0,0)(0,0,0,2)N/AN/A(0,0,0,1)(0,0,1,0)8(0,0,0,0)(0,0,1,0)N/AN/A(0,0,0,1)(0,0,0,0)N/AN/A(0,0,0,0)(0,0,1,1)9(0,0,0,2)(0,0,1,2)(0,0,0,1)(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,0,0)(0,0,1,0)(1,0,0,0)(0,0,0,2)(0,0,0,1)(0,0,0,0)(0,0,0,1)(0,0,0,0)(1,0,0,1)(0,0,0,0)(1,0,0,0)(2,0,0,0)(0,0,0,2)(0,0,1,1)(0,0,0,1)10(0,0,1,1)(0,0,0,0)(0,0,1,0)(0,0,1,0)(0,0,0,1)(0,0,1,1)(0,0,1,0)(0,0,0,0)(1,0,1,0)N/A(0,0,0,0)(0,0,0,1)(1,0,0,0)N/A(0,0,1,0)(0,0,0,0)(0,0,0,2)11N/A(0,0,0,0)(0,0,1,0)(0,0,0,1)N/AN/AN/AN/A(0,0,1,1)(0,0,0,1)(0,0,1,0)12(0,0,0,2)(0,0,1,2)(0,0,0,1)(0,0,1,1)(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,1,0)(0,0,0,0)(0,0,1,0)(1,0,0,0)(1,0,1,0)(0,0,0,2)(0,0,0,1)(0,0,0,0)(1,0,0,2)(0,0,0,1)(0,0,0,0)(1,0,0,1)(1,0,0,0)(0,0,0,0)(1,0,0,0)(2,0,0,0)(3,0,0,0)(0,0,0,2)(0,0,1,1)(0,0,0,1)(0,0,1,0)13(0,0,0,0)(0,0,1,0)(0,0,0,2)(0,0,1,2)N/AN/A(0,0,0,1)(0,0,0,0)(0,0,0,2)(1,0,0,1)N/AN/A(0,0,0,0)(0,0,0,2)(0,0,1,1)(0,0,0,1)14(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,1,0)N/AN/A(0,0,0,0)(0,0,0,2)(0,0,0,1)(1,0,0,0)N/AN/A(0,0,1,0)(0,0,0,0)(0,0,0,2)(0,0,1,1)15(0,0,0,2)(0,0,1,2)(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,1,0)(1,0,0,1)(0,0,0,0)(0,0,1,0)(1,0,0,0)(1,0,1,0)(2,0,0,0)(0,0,0,2)(0,0,0,1)(0,0,0,0)(1,0,0,2)(1,0,0,1)(0,0,0,1)(0,0,0,0)(1,0,0,1)(1,0,0,0(2,0,0,1)(0,0,0,0)(1,0,0,0)(2,0,0,0)(3,0,0,0)(4,0,0,0)(0,0,0,2)(0,0,1,1)(0,0,0,1)(0,0,1,0)(0,0,0,0)16(0,0,1,0)(0,0,0,2)(0,0,1,2)(0,0,0,1)(0,0,1,1)(0,0,1,1)(0,0,0,0)(0,0,1,0)(0,0,0,1)(1,0,1,1)(0,0,1,0)(0,0,0,0)(1,0,1,0(1,0,0,0)(2,0,1,0)(0,0,0,0)(0,0,0,2)(0,0,0,1)(1,0,0,0)(1,0,0,2)(0,0,0,0)(0,0,0,1)(1,0,0,0)(1,0,0,1)(2,0,0,0)N/AN/A17(0,0,0,0)(0,0,1,0)(0,0,0,2)(0,0,1,2)(0,0,0,1)(0,0,0,0)(0,0,1,0)(0,0,0,1)(0,0,1,1)(1,0,0,0)N/A(0,0,0,1)(0,0,0,0)(0,0,0,2)(1,0,0,1)(1,0,0,0)N/AN/AN/A18(0,0,0,2)(0,0,1,2)(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,1,0)(0,0,0,1)(0,0,1,1)(0,0,0,0)(0,0,1,0)(1,0,0,1)(1,0,1,1)(0,0,0,0)(0,0,1,0)(1,0,0,0)(1,0,1,0)(2,0,0,0)(2,0,1,0)(0,0,0,2)(0,0,0,1)(0,0,0,0)(1,0,0,2)(1,0,0,1)(1,0,0,0)(0,0,0,1)(0,0,0,0)(1,0,0,1)(1,0,0,0)(2,0,0,1)(2,0,0,0)(0,0,0,0)(1,0,0,0)(2,0,0,0)(3,0,0,0)(4,0,0,0)(5,0,0,0)(0,0,0,2)(0,0,1,1)(0,0,0,1)(0,0,1,0)(0,0,0,0)(1,0,0,2)19N/A(0,0,0,0)(0,0,1,0)(0,0,0,1)(0,0,1,1)(1,0,0,0)(1,0,1,0)N/AN/AN/AN/A(0,0,1,1)(0,0,0,1)(0,0,1,0)(0,0,0,0)(0,0,0,2)(1,0,1,1)20 / 30(0,1,0,1)(0,1,0,0)N/A(0,1,0,1)(0,1,0,0)N/A(0,1,0,1)21 / 31(0,2,0,1)(0,2,0,0)N/A(0,2,0,1)(0,2,0,0)N/A(0,2,0,1)22 / 32(0,1,1,1)(0,1,1,0)N/AN/AN/AN/A(0,1,1,0)23 / 33(0,0,0,1)(0,0,0,0)N/A(0,0,0,1)(0,0,0,