【正文】 RT L1 PCH information 30 4b 00 9e 01 13 3e 25 01 4a RT CS_ID 選定一個基站 準備階段 (MMI層發(fā)送主叫指令至 L3,RT層尋找基站建立 CCH) TCH請求階段 (RT層做具體操作 ) 31 57 00 01 02 02 09 00 RT CS link cch req 手機向基站發(fā)送請求分配業(yè)務信道的請求 30 0f 00 20 08 00 00 00 00 00 00 00 00 4e RT L1 pch information 30 35 00 04 RT TR001P Timer Out ink cch req超時 31 60 00 02 02 02 31 00 RT CS link cch rereq 重發(fā)請求 30 0f 00 20 08 00 00 00 00 00 00 00 00 4e RT L1 pch information 30 35 00 04 RT TR001P Timer Out 31 60 00 02 02 02 31 00 RT CS link cch rereq 30 04 00 20 07 01 RT L1 primitive 30 0f 00 20 08 1a 57 1a 1a 7a 34 a0 00 4b RT L1 pch information 30 0f 00 20 08 1a 57 13 23 a3 81 00 00 4a RT L1 pch information 30 12 00 04 20 08 01 02 02 12 a0 81 00 00 RT L1 lch assignment L1向 RT發(fā)送信道發(fā)配成功消息 30 09 00 05 00 RT L1 Uwave IND L1向 RT發(fā)送 U波檢測成功信息 30 20 00 06 RT L1 tch sync L1向 RT發(fā)送 TCH(業(yè)務信道 )同步信息 L2的建立 30 1e 00 06 11 01 RT L2 facch est req RT向 L2發(fā)送 FACCH建立請求，下面是建業(yè)務通道，約定業(yè)務信道載頻和時隙 26 01 00 3f 81 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 l2 to l1 data req facch L2向 L1發(fā)送 FACCH數(shù)據(jù)傳送請求 28 01 00 10 02 01 00 from l1 inf – facch 從 L1收到 FACCH 27 01 00 10 01 01 00 02 73 81 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0 from L1 data –facch 30 19 00 06 11 03 RT L2 facch indication L2向 RT發(fā)回 FACCH指示信息 30 1d 00 06 11 01 RT L2 sacch est req RT向 L2發(fā)送 SACCH建立請求 26 00 00 3f 09 00 00 l2 to l1 data req –sacch L2向 L1發(fā)送 SACCH數(shù)據(jù)傳送請求 28 00 00 10 02 00 00 from l1 inf – sacch 27 00 00 10 01 00 00 02 73 0b 00 00 from L1 data sacch 30 18 00 07 11 01 RT L2 sacch indication 31 50 00 07 RT MM tch est cfm or ind RT向 MM發(fā)送業(yè)務信道建立確認信息 33 03 00 31 04 00 00 00 MM get TCH establishment confirm from RR 41 16 00 01 pm send cc set up request to cc 發(fā)送 cc setup請求 , 說明 pm發(fā)給 cc setup消息 35 98 00 00 00 00 03 80 8c a4 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ….. CC PM: SETUP CC setup 包含被叫號碼等信息 內部接口 36 05 00 45 01 01 05 04 03 80 8c a4 6c 0e 00 80 30 35 37 31 38 35 35 38 37 31 34 30 CC CS: SETUP CC向基站發(fā)送 SETUP消息 2a 01 00 01 24 02 l2 iformat facch 26 01 00 02 04 00 a2 00 45 01 01 05 04 03 80 8c a4 6c 0e 00 80 30 35 37 l2 to l1 data req (facch) L2向 L1發(fā)送數(shù)據(jù)傳輸請求 ,通過 FACCH傳輸 28 01 00 10 02 01 00 from l1 inf – facch 26 01 00 02 04 02 a2 00 38 35 35 38 37 31 34 30 70 09 80 38 37 35 39 31 35 27 01 00 10 01 01 00 04 71 81 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 from L1 data –facch 27 01 00 10 01 01 00 04 70 c9 00 45 01 81 02 00 00 00 00 00 00 00 00 00 00 00 00 00 from L1 data –facch 35 02 00 45 01 81 02