13 = TCH enhanced full rate 14 = TCH full rate, 14,4kbs data 15 = TCH full rate, 9,6kbs data 16 = TCH full rate, 7,2kbs data 17 = TCH full rate, 4,8kbs data 18 = TCH full rate, 2,4kbs data
19 = TCH half rate, 4,8kbs data, first half 20 = TCH half rate, 4,8kbs data, second half 21 = TCH half rate, 2,4kbs data, first half 22 = TCH half rate, 2,4kbs data, second half 23 = TCH full rate FACCH
24 = TCH half rate FACCH, first half 25 = TCH half rate FACCH, second half 26 = AFS (Adaptive full rate speech) 27 = AHS (Adaptive half rate speech) 50 = PBCCH 51 = PCCCH
60 = PDTCH 时隙 频点
6 CI(Carrier Interference C/I，载干比) 1 21 0 Channel C/I: 21.8 第二项
7 HOF(Handover Failure切换失败)
8 L3U (Layer 3 Uplink) RACH CHANNEL REQUEST 46 Originating Speech Call Location Update Answer to Paging 40,41,42,43,44,45,46,47,48,
49,4A,4B,4C,4D,4E,4F,E7 01,02,03,04,05,06,07,08, 09,0A,0B,0C,0D,0E,0F 31,32,33,34,35,36,37,38, 39,3A,3B,3C,3D,3E,3F
§2 正常信令流程
§2.1 呼叫建立及主叫释放信令流程
Mobile originating call establishment
a) Call clearing initiated by the network
b）Call clearing initiated by the MS
1 Call Attempt 18:52:13.947（CAA）呼叫尝试 Call Type: Voice call 呼叫类型 Count: 1 第几次呼叫
Phone Number: 13673640441 被叫号码
2 Layer 3 Downlink 18:52:14.152 SYSTEM INFORMATION TYPE 2 邻小区BCCH频点描述：携带BA和BA-IND（BCCH分配序号指示） NCC Permitted 网络色码允许 RACH控制消息：
Max Retrans 最大重传次数 TX-integer 扩展传输时系数 RE 是否允许呼叫重建 EC 紧急呼叫 CBA 小区是否被禁止 ACC 被限制接入的用户级别 在BCCH上发送 用于小区重选
3 Layer 3 Downlink 18:52:14.153 SYSTEM INFORMATION TYPE 3 CELL ID小区识别 LAC 位置区识别 控制信道描述：
ATT 移动台附着分离允许指示 BS-AG-BLKS-RES 接入允许AGCH块数
CCCH-CONF 公共控制信道结构,即信道组合方式 CBQ2 Cell Bar Qualify 2 inactive
BS-PA-MFRMS 传输寻呼消息留给同一寻呼组的51TDMA复帧数 T3212 timeout 周期性位置更新时间 30(=3 hours) 小区选项：
RADIO-LINK-TIMEOUT 无线链路超时 64 DTX 不连续发射指示 PWRC 功率控制指示 小区选择参数
CELL-RESELECT-HYSTERESIS 小区重选滞后值 6dB
MS-TXPWR-MAX-CCH 移动台接入小区应使用的最大TX功率电平 5 RXLEV-ACCESS-MIN 最小接入电平RXP 12
NECI: Half rate support: New establishment causes are supported ACS 系统消息16,17不在BCCH上发送 RACH控制参数:同系统消息2 其余参数:掩码发送控制,GPRS指示 下行消息,在BCCH上发送.
4 Layer 3 Downlink 18:52:14.154 SYSTEM INFORMATION TYPE 4 下行消息在 BCCH上发送
和SYSTEM INFORMATION TYPE 3基本一样,不同的是包含CBCH信道描述,CBCH移动配置. 5 Layer 2 Downlink 18:52:14.174 CCCH FILL 6 Layer 2 Downlink 18:52:14.193 CCCH UNIT_DATA
7 Layer 3 Downlink 18:52:14.193 CCCH PAGING REQUEST TYPE 1 Paging mode: Normal paging 寻呼模式:正常的寻呼
5,6,7信令是公共控制信道的信息, CCCH: 共用控制信道, 它的子通道PCH(PAGING CHANNEL)在CCCH上. 手机能认出并用一个RACH作出反应.; 还有子通道AGCH 访问认可通道, 命令手机进入SDCCH或TCH.: 是双向控制信道, CCCH和BCH在多帧上分享0时隙；CCCH包括RACH; PCH; AGCH; CBCH; PCH呼叫通道 用于运载IMSI报知手机有呼叫、PCH是下行通道 8 Cell Reselection 18:52:14.406 1 14101 41102 1 14101 41101
Old Cellular System: GSM 900 Old LAC: 14101
Old Cell Identification: 41102 New Cellular System: GSM 900 New LAC: 14101
New Cell Identification: 41101
9 Channel Info 18:52:14.406 目标小区信道信息 Cellular System: GSM 900 Channel Type: Control channel Carrier Number: 94 Cell Identification: 41101 LAC: 14101 Uplink DTX: n/a Radio Link Timeout: n/a Extended Channel Type: CCCH Timeslot number: n/a BCCH ARFCN: 94
10 Neighbor List 18:52:14.406 邻区信息 Number of Neighbor List Header Params: 0 Number of Neighbor List Items: 20 邻区数 Neighbor Channel (1) Cellular System: GSM 900 UARFCN: 64 BSIC: -1
列出20个邻区列表中20个邻区的频点和BSIC 11 RX Level 18:52:14.406 当前小区和其邻区测量信息 Serving Cell
Channel Number: 94 BSIC: 37 RX Level Full: -40 RX Level Sub: -40 C1: 36
C2: 36
列出当前小区和最强的6个邻区测量信息 12 Enhanced RX Level 18:52:14.406 Cellular System: GSM 900 Number of Channels: 8
Number of Parameters per Channel: 16 Serving Cell -- Channel Number: 94
Base Station Identification Code: 37 RX Level Full: -40 dBm RX Level Sub: -40 dBm C1: 36 C2: 36 C31: n/a C32: n/a
HCS Priority Class: n/a HCS Threshold: n/a
Cell Identification (16-bit): 41101 Location Area Code: 14101 Routing Area Code: 0 Neighbor Cell (1) -- Channel Number: 82
Base Station Identification Code: 16 RX Level: -65 dBm C1: 34 C2: 34 C31: n/a C32: n/a
HCS Priority Class: n/a HCS Threshold: n/a
Cell Identification (16-bit): 41103 Location Area Code: 14101