RR message: IMMEDIATE ASSIGNMENT

Interface:
GSM Um [MS <-- BTS]; GSM Abis [BTS <-- BSC]
Tool: NetHawk GSM Analyser v7.9

GSM Abis:
Conn:1 Line:1 TS:30 Subch:0 9 10:58:18.119781
--------E1:
VALID FRAME
02 03 3A 9A 0C 16 01 90 2B 17 2D 06 3F 00 38 00 32 E4 92 05 00 00 2B 2B
2B 2B 2B 2B 2B 2B 2B 2B 2B
--------LAPD:
INFO
SAPI: 0 (0h) TEI: 1 (1h) C/R: 1 P/F: 0
N(R): 4DH N(S): 1DH
0C 16 01 90 2B 17 2D 06 3F 00 38 00 32 E4 92 05 00 00 2B 2B 2B 2B 2B 2B
2B 2B 2B 2B 2B
--------BTSM: <--這個BTSM在GSM似乎總是和RR:IMMEDIATE ASSIGNMENT一起出現。
IMM.ASS. CMD (CCh) T=0
Channel Nr
- downlink CCCH (PCH + AGCH)
- timeslot : 0
Full Imm. Ass. Info
- value (hex) : 2D 06 3F 00 38 00 32
E4 92 05 00 00 2B 2B 2B 2B 2B 2B 2B
2B 2B 2B 2B
--------RR:
IMMEDIATE ASSIGNMENT (RR)
L2 Pseudo Length: 0B
Skip Indicator: 00
RR management Protocol Discriminator: 06
Dedicated mode or TBF:
- TMA: No meaning
- down-link: No meaning
- T/D: 0 this message assigns a dedicated mode resource
Page Mode:
- PM: Normal paging
Channel Description:
- Channel type and TDMA offset:
SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4), subchannel 3
- TN: 00
- TSC: 00
- Hopping Channel: 0 Single RF channel
- ARFCN: 50 (32h)
Request Reference:
- Est Cause: <- MS當時送出Channel Request時，包含此理由。
1 Originating call and TCH/F is needed, or originating call
- Random Reference: 4 (0x4) <- MS當時送出Channel Request時，包含此隨機碼。
- T1': 18 (0x12)
- T2: 5 (0x5)
- T3: 16 (0x10)
- Frame number : 24445
Timing advance value: 00
Mobile Allocation Length: 00
MA C: empty
IA Rest Octets: empty
[EOM]

GPRS Abis:(有三個例子)
[Example 1]
Conn:2 Line:1 TS:30 Subch:0 10624 10:50:39.1721050
--------E1:
VALID FRAME
02 03 80 E6 20 60 01 90 2B 17 2D 06 3F 30 0A 00 78 00 F4 6C 00 00 DC 00
00 00 38 00 1C 2B 2B 2B 2B FC 00 11 0C 08 29 43 88 41 10 14 01 91
--------LAPD:
INFO
SAPI: 0 (0h) TEI: 1 (1h) C/R: 1 P/F: 0
N(R): 73H N(S): 40H
20 60 01 90 2B 17 2D 06 3F 30 0A 00 78 00 F4 6C 00 00 DC 00 00 00 38 00
1C 2B 2B 2B 2B FC 00 11 0C 08 29 43 88 41 10 14 01 91
--------BTSM: <--這個BTSM在GPRS似乎總是和RR:IMMEDIATE ASSIGNMENT一起出現。
P-IMM ASSIGN CCCH COMMAND (GPRS) T=0
Channel Nr
- downlink CCCH (PCH + AGCH)
- timeslot : 0
Full Imm. Ass. Info
- value (hex) : 2D 06 3F 30 0A 00 78
00 F4 6C 00 00 DC 00 00 00 38 00 1C
2B 2B 2B 2B
Message Sequence Id
- MSI value: 17 (11h)
MS Identity
- IMSI : 23xxxxx01411019 <-- 使用dummy ID以保護用戶資料。
--------RR:
IMMEDIATE ASSIGNMENT (RR)
L2 Pseudo Length: 0B
Skip Indicator: 00
RR management Protocol Discriminator: 06
Dedicated mode or TBF:
- TMA: No meaning
- down-link:
this message assigns a resource to the mobile station identified in the IA rest octets
- T/D: 1 this message assigns a Temporary Block Flow (TBF)
Page Mode:
- PM: Normal paging
Packet Channel Description:
- Channel type: 01
- TN: 02
- TSC: 00
- ARFCN: 00 78
Request Reference:
- Est Cause: <- MS當時送出Channel Request時，包含此理由
Location updating and the network does not set NECI bit to 1
- Random Reference: 0 (0x0) <- MS當時送出Channel Request時，包含此隨機碼。
- T1': 30 (0x1e)
- T2: 12 (0xc)
- T3: 35 (0x23)
- Frame number : 40988
Timing advance value: 00
Mobile Allocation Length: 00
MA C: empty
IA Rest Octets:
- Packet Downlink Assignment:
- Temporary Logical Link Identity:
- Local TLLI: C0 00 00 03
- TFI Assignment: 00
- RLC Mode: RLC acknowledged mode;
- Gamma: GammaCH = 0 dB
- Polling: no action is required from MS
- TA Valid: the timing advance value is not valid
- Timing Advance Index: 0C
[EOM]

[Example 2]
Conn:2 Line:1 TS:30 Subch:0 8395 10:50:17.2689796
--------E1:
VALID FRAME
02 03 74 CE 20 60 01 90 2B 17 2D 06 3F 10 0A 00 78 78 5B 56 00 00 CD 0C
00 2C 2B 2B 2B 2B 2B 2B 2B FC 00 0E
--------LAPD:
INFO
SAPI: 0 (0h) TEI: 1 (1h) C/R: 1 P/F: 0
N(R): 67H N(S): 3AH
20 60 01 90 2B 17 2D 06 3F 10 0A 00 78 78 5B 56 00 00 CD 0C 00 2C 2B 2B
2B 2B 2B 2B 2B FC 00 0E
--------BTSM: <--這個BTSM在GPRS似乎總是和RR:IMMEDIATE ASSIGNMENT一起出現。
P-IMM ASSIGN CCCH COMMAND (GPRS) T=0
Channel Nr
- downlink CCCH (PCH + AGCH)
- timeslot : 0
Full Imm. Ass. Info
- value (hex) : 2D 06 3F 10 0A 00 78
78 5B 56 00 00 CD 0C 00 2C 2B 2B 2B
2B 2B 2B 2B
Message Sequence Id
- MSI value: 14 (Eh)
--------RR:
IMMEDIATE ASSIGNMENT (RR)
L2 Pseudo Length: 0B
Skip Indicator: 00
RR management Protocol Discriminator: 06
Dedicated mode or TBF:
- TMA: No meaning
- down-link: No meaning
- T/D: 1 this message assigns a Temporary Block Flow (TBF)
Page Mode:
- PM: Normal paging
Packet Channel Description:
- Channel type: 01
- TN: 02
- TSC: 00
- ARFCN: 00 78
Request Reference:
- Est Cause: <- MS當時送出Channel Request時，包含此理由。
One phase packet access with request for single timeslot uplink transmission;one PDCH is needed
- Random Reference: 0 (0x0) <- MS當時送出Channel Request時，包含此隨機碼。
- T1': 11 (0xb)
- T2: 22 (0x16)
- T3: 26 (0x1a)
- Frame number : 14816
Timing advance value: 00
Mobile Allocation Length: 00
MA C: empty
IA Rest Octets:
- Packet Uplink Assignment:
- TFI Assignment: 14
- Polling: no action is required from MS
- USF: 06
- USF Granularity: 00
- Channel Coding Command: coding scheme 1, CS-1
- TLLI Block Channel Coding:
mobile station shall use CS-1 in GPRS TBF mode or MCS-1 in EGPRS TBF mode
- Gamma: GammaCH = 0 dB
- Timing Advance Index: 06
[EOM]

[Example 3]
Conn:2 Line:1 TS:30 Subch:0 6845 10:50:01.9568925
--------E1:
VALID FRAME
02 03 6C C0 20 60 01 90 2B 17 2D 06 3F 10 0A 00 78 7A 42 C5 00 00 CC 46 00 26 2B 2B 2B 2B 2B 2B 2B FC 00 0C
--------LAPD:
INFO
SAPI: 0 (0h) TEI: 1 (1h) C/R: 1 P/F: 0
N(R): 60H N(S): 36H
20 60 01 90 2B 17 2D 06 3F 10 0A 00 78 7A 42 C5 00 00 CC 46 00 26 2B 2B
2B 2B 2B 2B 2B FC 00 0C
--------BTSM: <--這個BTSM在GPRS似乎總是和RR:IMMEDIATE ASSIGNMENT一起出現。
P-IMM ASSIGN CCCH COMMAND (GPRS) T=0
Channel Nr
- downlink CCCH (PCH + AGCH)
- timeslot : 0
Full Imm. Ass. Info
- value (hex) : 2D 06 3F 10 0A 00 78
7A 42 C5 00 00 CC 46 00 26 2B 2B 2B
2B 2B 2B 2B
Message Sequence Id
- MSI value: 12 (Ch)
--------RR:
IMMEDIATE ASSIGNMENT (RR)
L2 Pseudo Length: 0B
Skip Indicator: 00
RR management Protocol Discriminator: 06
Dedicated mode or TBF:
- TMA: No meaning
- down-link: No meaning
- T/D: 1 this message assigns a Temporary Block Flow (TBF)
Page Mode:
- PM: Normal paging
Packet Channel Description:
- Channel type: 01
- TN: 02
- TSC: 00
- ARFCN: 00 78
Request Reference:
- Est Cause: <- MS當時送出Channel Request時，包含此理由。
One phase packet access with request for single timeslot uplink transmission;one PDCH is needed
- Random Reference: 2 (0x2) <- MS當時送出Channel Request時，包含此隨機碼。
- T1': 8 (0x8)
- T2: 5 (0x5)
- T3: 22 (0x16)
- Frame number : 11497
Timing advance value: 00
Mobile Allocation Length: 00
MA C: empty
IA Rest Octets:
- Packet Uplink Assignment:
- TFI Assignment: 11
- Polling: no action is required from MS
- USF: 03
- USF Granularity: 00
- Channel Coding Command: coding scheme 1, CS-1
- TLLI Block Channel Coding:
mobile station shall use CS-1 in GPRS TBF mode or MCS-1 in EGPRS TBF mode
- Gamma: GammaCH = 0 dB
- Timing Advance Index: 03
[EOM]

070621r2版本