7 RRC and BRM

1 © 2005 Nokia RRC and BRM.ppt / 2006-12-20 / MNi

Company Confidential

RRC and BRM



Contents

• RRC hand groups• HLP for RRC• RRC Lifetime macro• E2K for BRM



RRCPRBRRCPRB (FAM ID = 4FD) offers signalling connections towards the UE and call control functionality. It is divided into hand groups: RRC-S, RRC-C, MCC, RRC-D.

•RRC-S = RRC-System = HG1•Handles system information scheduling, segment. and broadcasting•1 hand per WBTS•32 hands per ICSU• Hands 1-20 (hex)

•RRC-C = RRC-Common = HG2•Handles the common RACH/FACH signaling procedures towards the UE when there is no RRC connection•1 hand per WCEL•288 hands per ICSU•Hands 21-140 (hex)



RRCPRB - MCC

• MCC = MS Connection Control = HG3• Controls the connection between the UE, RNC, and CN• Requests the capacity from BRM • Produces the RLC parameters needed for radio bearer services and

composes the transport channel parameters • Controls the packet data transfer states according to inactivity/activity

indications from MAC-layer• 1 hand per UE• In RN2.1: 4096 hands per ICSU

• Hands 141-1140 (hex)• In RN2.2: 8192 hands per ICSU



RRCPRB – RRC -D

• RRC-D = RRC Dedicated = HG4• Handles the dedicated signaling procedures when the UE has RRC

connection i.e. it sends/receives messages to/from the UE using Signalling Radio Bearer services of RLC

• 1 hand per UE• In RN2.1: 4096 hands per ICSU

• Hands 1141-2140 (hex)• In RN2.2: 8192 hands per ICSU



RRC hand groups – RN2.2

0000-MAN>ZSXP:RRC

ID NAME LDT ATTR BP MP SI HGC MQ EH IS LP HP04FD RRC_QX 6110 (G3106) 18AD 32 50 0014 0004 FFFF 01 00 50 50 HGR:0001 PRC:002D BLOCK SIZE: 01 HGR:0002 PRC:0120 BLOCK SIZE: 01 HGR:0003 PRC:2000 BLOCK SIZE: 40 HGR:0004 PRC:2000 BLOCK SIZE: 40

ZSXP:<XXX>; Check process family IDXXX = 3 first letters of the PRB name



FAM – Family Utilities17-FAM>?

PROCESS FAMILY HANDLING

? ..... MENU / HELP F ..... DISPLAY FAMILY CONTROL BLOCK (FCB) D ..... DISPLAY FAMILY DATA BLOCK (FDB) I ..... FAMILY INFORMATION SUMMARY G ..... DISPLAY GROUP DATA H ..... DISPLAY HAND DATA U ..... DISPLAY RESOURCE USAGE M ..... DISPLAY MINI-PCB DATA B ..... DISPLAY TNSDL-STACK BOTTOM

K ..... FREE A HAND PROCESS T ..... SET THERMOMETER SUPERVISOR R ..... RESET SYNC STATUS S ..... SET SYNC STATUS C ..... CHANGE WAITING TIMES X ..... FORCE MASTER TO RUN A ..... DISPLAY/MODIFY PROCESS CLEANUP DATA

Z ..... RETURN TO MAIN LEVEL



FAM – Family Utilities001C-FAM>HR:4FD

RESERVED HANDS:HAND FO:PREV NEXT TIME GR STATE STABITS JBUFFER RCOMP FAM PROC FO0001 00 0605 0002 80003657 01 Reserved -------- 0000.00000000 0000 0000 0000 000002 00 0001 0021 80003664 01 Reserved -------- 0000.00000000 0000 0000 0000 000021 00 0002 0022 80003D38 02 Reserved -------- 0000.00000000 0000 0000 0000 000022 00 0021 0023 80003D72 02 Reserved -------- 0000.00000000 0000 0000 0000 000023 00 0022 0024 80003D8B 02 Reserved -------- 0000.00000000 0000 0000 0000 000024 00 0023 0025 80003DC2 02 Reserved -------- 0000.00000000 0000 0000 0000 000025 00 0024 0026 80003DDC 02 Reserved -------- 0000.00000000 0000 0000 0000 000026 00 0025 15D2 80003E17 02 Reserved -------- 0000.00000000 0000 0000 0000 0005D2 00 15D2 1603 806ED5AD 03 Reserved -------- 0000.00000000 0000 0000 0000 000603 00 1603 1604 8073BADC 03 Reserved -------- 0000.00000000 0000 0000 0000 000604 00 1604 1605 8073CA24 03 Reserved -------- 0000.00000000 0000 0000 0000 000605 00 1605 0001 8073FA5C 03 Reserved -----L-- 0000.00000000 0000 0000 0000 0015D2 00 0026 05D2 806ED5AD 04 Reserved -------- 0000.00000000 0000 0000 0000 001603 00 05D2 0603 8073BADC 04 Reserved -------- 0000.00000000 0000 0000 0000 001604 00 0603 0604 8073CA24 04 Reserved -------- 0000.00000000 0000 0000 0000 001605 00 0604 0605 8073FA5C 04 Reserved -------- 0000.00000000 0000 0000 0000 00



Check RRC-C macro• Outputs RRC-C Cell IDs, ICSU logical addresses of working cells and RRC-C hand identifiers

ICSU RRC-C CELL ID LOG ADD HAND ID

wcell 000110 rrc-c 4450 04FD 001Cwcell 000210 rrc-c 0000 04FD 0000wcell 000001 rrc-c 4452 04FD 004Ewcell 000002 rrc-c 0000 04FD 0000wcell 000003 rrc-c 0000 04FD 0000wcell 000013 rrc-c 0000 04FD 0000wcell 000004 rrc-c 4453 04FD 0035wcell 000005 rrc-c 4453 04FD 0038wcell 000006 rrc-c 4453 04FD 0037wcell 000007 rrc-c 0000 04FD 0000wcell 000008 rrc-c 0000 04FD 0000wcell 000009 rrc-c 4453 04FD 0034wcell 000041 rrc-c 4452 04FD 004Fwcell 000051 rrc-c 4452 04FD 0050wcell 000061 rrc-c 0000 04FD 0000



RRC Lifetime macro• This macro can be used to check, whether there are hanging RRC hands in the system,

or to approximate the amount of concurrent calls in the system.

1. Edit configuration of the macro• #define DEVICE_NAME "RNC2" // enter your HIT device name here• string path = "C:\\users\\"; // the results will be stored in this directory

2. Run the macro3. Analyse the results

• Both the HIT messages window and the above given path will now contain a list of currenly running RRCPRC’s MCC and RRC-D hands in each ICSU

• There is also information how long the hands have been running (in minutes)• If you can find for example a pair of MCC and RRC-D that have been running for 10000 minutes,

it is pretty sure that they are hanging• If success rate for certain ICSU (or some / all of them) is poor, it might be so that RRC hands are

hanging there• Restarting the ICSU will solve the situation• Try to collect RRC monitorings and ICSU computer logs before restarting if there is time• The amount of active RRC-D and MCC hands per ICSU is a snapshot of the amount of concurrent

calls in the system - however only near exact as each ICSU snapshot is taken separately



RRC Lifetime macro - example resultsICSU 01 0197 4FD hand: current life time = 00000023 minutesICSU 01 1197 4FD hand: current life time = 00000023 minutesICSU 04 0197 4FD hand: current life time = 00000002 minutesICSU 04 1197 4FD hand: current life time = 00000002 minutesICSU 05 0197 4FD hand: current life time = 00000002 minutesICSU 05 1197 4FD hand: current life time = 00000002 minuteshandgroup1 count 3 handgroup2 count 3



HPLRRC• You can output RRC monitoring logs with HPL in order to detect failures

and exceptions• HPL extension is located in OMU• Benefit of HPL is that is does not cause any extra load to RNC • Each ICSU saves 5 MB of monitoring continously



HPLRRC – main menu

0000-HPL>?

MAIN MENU OF HPLRRC SERVICE TERMINAL EXTENSION

? ..... MENU / HELP H ..... HANGING MCC HANDS HELPER S ..... RRC SELF MONITORING COMMANDS Z ..... RETURN TO MAIN LEVEL



HPLRRC - H0000-HPL-H>?H

HS/HF/HR - Get state info from hanging MCC hands to Screen/to File/Read file

Hx:(<UNIT INDEX>),N(,offset,size);

Hx:<UNIT INDEX>,Pxxx(,offset,size);

<UNIT INDEX> defines index of the destination ICSU. If <UNIT INDEX> has not been given command will be executed in all ICSU units in state WO-EX or SP-EX.

N : MCCs hung > N minutes are shown Pxxx : MCC hand process xxx is shown offset : hex offset to data in data segment size : dec number of bytes to get

If offset/size are given, the requested data is fetched and printed unformatted. Else pre-defined data is fetched and printed formatted.



HPLRRC - S0000-HPL-S>?

MAIN MENU OF HPLRRC SELF MONITOR COMMANDS

? ..... MENU / HELP C ..... CLEAR RRC SELF MONITORING BUFFER I ..... INTERROGATE RRC SELF MONITORING INFORMATION L ..... LIST CONTENTS OF THE RRC SELF MONITORING BUFFER M ..... MOVE MONITORINGS TO THE SELF MONITORING BUFFER N ..... START RRC SELF MONITORING S ..... STOP RRC SELF MONITORING Z ..... RETURN TO MAIN LEVEL



HPLRRC - S00-HPL-S>?M

MOVE MONITORINGS TO THE SELF MONITORING BUFFER

M:<UNIT INDEX>:<PROCESS ID>;

<UNIT INDEX> defines index of the destination ICSU. parameter is obligatory

<PROCESS ID> defines the process which messages will be moved to self monitoring buffer. parameter is obligatory

00-HPL-S>M:4:0;

DESTINATION UNIT: ICSU-4 =================

Data moved to Monitoring buffer successfully

DATA COUNT IN BUFFER : 181536

00-HPL-S>M:4:1;



HPLRRC - S

00-HPL-S>L


BYTES WRITTEN: 5031379

Monitorings written successfully to logfile


BYTES WRITTEN: 5013530

Monitorings written successfully to logfile

L writes monitorings from WO-EX ICSUs to RUNNING/RRCTMP directory



RRCTMP contents

IWX::,:RRCTMP,:%,%,;

RNC IPA2800 2005-12-15 10:40:07

VOLUME DIRECTORY.DIR: 0 INITIALIZED 01-03-27 SFFS DIRECTORY OF RRCTMP LIMIT 2=============================================================== FILE NAME FILE FILE DATA PAGE 1 VERSION NO LENGTH CREATOR ATTR (H) (H) (DEC)

ICSU_0 .LOG 2 3 5031380 EE DA ICSU_0 .LOG 1 4 5031380 EE A ICSU_1 .LOG 2 6 5013531 EE DA ICSU_1 .LOG 1 7 5013531 EE A ICSU_2 .LOG 2 9 4910299 EE DA ICSU_2 .LOG 1 A 4910299 EE A ICSU_3 .LOG 2 C 4931773 EE DA ICSU_3 .LOG 1 13 4931773 EE A

TOTALS 39778062 ( INCLUDING FIDS )

FREE BLOCKS IN DISK 23238444 ( 68 % )DISK SIZE 33697119 BLOCKS



FTP RRCTMP contents to you PC



BRMPRB - BTS Resource Manager• FAM ID = 4FB• Load Control, Admission Control, Packet Scheduler• Receives cell specific radio resource measurement reports from BTS. Based on

these reports BRMPRB is able to schedule the remaining radio resources for various kinds of radio access bearers of UE

• Radio resource scheduling function includes the power change estimation, admission decision and allocation of capacity, DL code and DL power for the RAB

• There is 1 BRMPRB hand for each BTS and it is created when the BTS is created• There are 30 BRMPRB hands per ICSU• Allocates and releases radio resources of the cell in radio link setup, modification

or release • Allocates the common channel spreading codes• Can be monitored with E2K service terminal extension



E2K

• Monitors the BRM process family (L3 signalling messages)• Admission Control• Load Control• Packet Scheduler• Resource Manager

• Tracing calls/cell• Code trees



E2K extension (BRM monitoring)17-E2K>? BRM MONITORING

? ..... HELP / MENU B ..... BTS SPECIFIC INFO C ..... CELL STATUS FILE E ..... Eb/No Table M ..... MS STATUS FILE N ..... NRT QUEUEING INFO O ..... ONLINE MONITORING P ..... RNC PARAMETERS R ..... RT QUEUEING INFO T ..... CODE TREE Z ..... RETURN TO MAIN LEVEL



B - BTS specific info001C-E2K>?B

B(C)(D):BTS_ID,OUTPUT_TYPE; ! ! ! ! ! ! ! 1 = BTS CELL ID LIST (default) ! ! ! 2 = GENERAL INFO OF BTS ! ! ! 3 = BTS SPECIFIC PARAMETERS ! ! ! 4 = BTS CAPABILITY INFORMATION ! ! ! 5 = BTS SPECIFIC OVERLOAD CONTROL CANDIDATE LISTS (EOCB) ! ! ! 6 = COMMON MEAS OVER IUR INFO ! ! ! 7 = OPEN IUB RELATED INFORMATION ! ! ! 8 = BTS PENALTY TIMER (PIT) LISTS ! ! ! 9 = BTS HSDPA RELATED INFORMATION ! ! ! 10 = TEST PARAMETERS ! ! ! ! ! ! ! ! Selected BTS id (HEX/DEC) ! ! ! D = Give BTS_ID parameter as DEC ! C = Continuous output, interrupted by Ctrl-A or Ctrl-C



B - BTS Cell Id list17-E2K>B:3;

===============================================================================BTS CELL ID LIST OUTPUT 2005-11-15 12:41:46.76BTS 0003 (HEX) / 00003 (DEC) State: NORMAL===============================================================================

BRM_CELL_INDEX CELL_ID(HEX) CELL_ID(DEC) CELL STATE-01 07EF 02031 NORMAL-02 07F0 02032 BLOCKED-03 07F1 02033 NORMAL-04 0000 00000 NOT_IN_USE-05 0000 00000 NOT_IN_USE-06 0000 00000 NOT_IN_USE-07 0000 00000 NOT_IN_USE-08 0000 00000 NOT_IN_USE-09 0000 00000 NOT_IN_USE-10 0000 00000 NOT_IN_USE-11 0000 00000 NOT_IN_USE-12 0000 00000 NOT_IN_USE===============================================================================



C - Cell Status File C(C)(D):BTS_ID,CELL_ID,OUTPUT_TYPE; ! ! ! ! ! ! ! ! ! 0 = All records (default) ! ! ! ! 1 = GENERAL INFO OF CELL ! ! ! ! 2 = REALTIME LOAD INFORMATION ! ! ! ! 3 = RADIO NETWORK PLANNING PARAMETERS ! ! ! ! 4 = LIST OF HIGH BIT RATE BEARERS ! ! ! ! 5 = DECREASED BITRATE LIST ! ! ! ! 6 = SCCPCH AND PCH IDs AND PARAMETERS ! ! ! ! 7 = PRACH ID AND PARAMETERS ! ! ! ! 8 = EXTENDED REALTIME LOAD INFORMATION OF CELL ! ! ! ! 9 = OPEN IUB RELATED INFORMATION OF THE CELL ! ! ! ! 10 = OVERLOAD CONTROL PRIORITY LISTS ! ! ! ! 11 = OVERLOAD CONTROL CANDIDATE LISTS ! ! ! ! 12 = PS REJECTION RATE INFORMATION ! ! ! ! 13 = SLHO CELL INFORMATION ! ! ! ! 14 = SLHO CANDIDATE LISTS ! ! ! ! 15 = SLHO INTERFERENCE LOAD INFO ! ! ! ! 16 = SLHO PS NRT CAPA REQ REJECTION RATE LOAD INFO ! ! ! ! 17 = SLHO DL SC RESERVATION RATE LOAD INFO ! ! ! ! 18 = SLHO HARD BLOCKING LOAD INFO ! ! ! ! 19 = HSDPA INFORMATION OF THE CELL ! ! ! ! 20 = PRE-EMPTION CANDIDATE LIST ! ! ! ! ! ! ! Selected CELL ID (HEX/DEC) / 0 = all / W = working



C - Cell Status File17-E2K>C:1,W,1;

===============================================================================CELL STATUS FILE OUTPUT 2005-11-15 12:54:12.77BTS 0001 CELL INDEX 0001 CELL ID 07DB (HEX) 00001 0001 02011 (DEC)===============================================================================

GENERAL INFORMATION OF CELL===============================================================================CODE TREE INDEX 01PRIMARY DOWNLINK SCRAMBLING CODE 00C8SECONDARY DOWNLINK SCRAMBLING CODE 00MAC-C Computer ID 4470MAC-C Family id 0513MAC-C process ID 0000CELL STATE NORMALPRE-EMPTION ALLOWED TRUE PRE-EMPTION STARTED FALSEPRE-EMPTION STARTED OUTSIDE FALSE...===============================================================================



M - MS status file

M(C)(D):BTS_ID,OUTPUT_TYPE,MS_ID,CELL_ID; ! ! ! ! ! ! ! ! ! ! ! 0 = All CELLs (default) ! ! ! ! ! HEX/DEC = Selected CELL_ID ! ! ! ! ! (Parameter affects only with output_type 8) ! ! ! ! ! ! ! ! ! 0 = All active MS records (default) ! ! ! ! DEC = Selected MS_ID ! ! ! ! ! ! ! 1 = GENERAL MS INFORMATION LIST OF CURRENT MS DATA (default) ! ! ! 2 = GENERAL MS INFORMATION LIST OF NEW MS DATA ! ! ! 3 = DETAILED CURRENT MS SPECIFIC DATA -> Shows MCC hand and ICSU id

! ! ! 4 = DETAILED NEW MS SPECIFIC DATA ! ! ! 5 = COMPRESSED MODE RELATED DATA ! ! ! 6 = GENERAL DCH INFORMATION LIST OF CURRENT MS DATA ! ! ! 7 = GENERAL DCH INFORMATION LIST OF NEW MS DATA ! ! ! 8 = MS RL INFORMATION LISTED BY CELLS (CURRENT MS DATA) ! ! ! 9 = SLHO MS INFORMATION ! ! !



M - MS status file001C-E2K>M:1;

===============================================================================MS STATUS FILE OUTPUT 2005-12-06 21:26:52.24BTS 0001 (HEX) / 00001 (DEC)===============================================================================

GENERAL MS INFORMATION LIST OF CURRENT AND VALID DATA------------------------------------------------------------------------------- RL data:MS_ID SRNTI PID PRE SF DCH_CNT CNT RL_ID CELL SPREAD_CODE RL_PWR-002 000018DF 0839 F 0128 04 02 01 07DD 0005 17.50 02 07DB 0006 17.50-003 000018E2 083A F 0128 04 01 01 07DD 0004 17.50-004 000018E0 083A F 0128 04 03 01 07DB 0005 18.00 02 07DD 0006 18.00 03 07DF 0004 18.00-005 000018DD 0839 F 0032 02 01 01 07DD 0005 21.00-006 000018DE 083A F 0128 04 02 01 07DD 0008 21.00 02 07DB 0004 21.00-007 000018DB 0839 F 0032 02 02 01 07DD 0003 21.50 02 07DB 0003 21.50===============================================================================



M - MS status file001C-E2K>M:1,6;

===============================================================================MS STATUS FILE OUTPUT 2005-12-06 21:30:04.86BTS 0001 (HEX) / 00001 (DEC)===============================================================================

GENERAL DCH INFORMATION LIST OF CURRENT AND VALID DATA------------------------------------------------------------------------------- DCH_ AR_ TRAF_ TH_MS_ID DCH TYPE DL_BR UL_BR DL_STATE UL_STATE PRI CLASS PRI-001 00 SIGNAL_LINK 00003700 00003700 ACTIVE ACTIVE 15 CONVE 00-001 01 PS_NRT_DATA 00032000 00032000 ACTIVE ACTIVE 08 BACKG 00-002 00 SIGNAL_LINK 00003700 00003700 ACTIVE ACTIVE 15 CONVE 00-002 01 AMR_SF_1 00012200 00012200 INACTIVE INACTIVE 14 CONVE 00-002 02 AMR_SF_2 00012200 00012200 INACTIVE INACTIVE 00 CONVE 00-002 03 AMR_SF_3 00012200 00012200 INACTIVE INACTIVE 00 CONVE 00-003 00 SIGNAL_LINK 00003700 00003700 ACTIVE ACTIVE 15 CONVE 00-003 01 AMR_SF_1 00012200 00012200 INACTIVE INACTIVE 14 CONVE 00-003 02 AMR_SF_2 00012200 00012200 INACTIVE INACTIVE 00 CONVE 00-003 03 AMR_SF_3 00012200 00012200 INACTIVE INACTIVE 00 CONVE 00-004 00 SIGNAL_LINK 00003700 00003700 ACTIVE ACTIVE 15 CONVE 00-004 01 AMR_SF_1 00012200 00012200 INACTIVE INACTIVE 14 CONVE 00-004 02 AMR_SF_2 00012200 00012200 INACTIVE INACTIVE 00 CONVE 00-004 03 AMR_SF_3 00012200 00012200 INACTIVE INACTIVE 00 CONVE 00-005 00 SIGNAL_LINK 00003700 00003700 ACTIVE ACTIVE 15 CONVE 00-005 01 PS_NRT_DATA 00064000 00032000 ACTIVE ACTIVE 08 BACKG 00-006 00 SIGNAL_LINK 00003700 00003700 ACTIVE ACTIVE 15 CONVE 00-006 01 AMR_SF_1 00012200 00012200 INACTIVE INACTIVE 14 CONVE 00-006 02 AMR_SF_2 00012200 00012200 INACTIVE INACTIVE 00 CONVE 00-006 03 AMR_SF_3 00012200 00012200 INACTIVE INACTIVE 00 CONVE 00-008 00 SIGNAL_LINK 00003700 00003700 ACTIVE ACTIVE 15 CONVE 00-008 01 PS_NRT_DATA 00064000 00032000 ACTIVE INACTIVE 08 BACKG 00===============================================================================



T - Code TreeT(C)(D):BTS_ID,CELL_ID,SF,SEARCH_KEY,CODE_ID/MS_ID; ! ! ! ! ! ! ! ! ! ! ! ! ! 0 = All codes (default) ! ! ! ! ! ! DEC = Selected CODE_ID/MS_ID ! ! ! ! ! ! (SEARCH_KEY must be 'B' or 'C') ! ! ! ! ! 0 = output all codes (default) ! ! ! ! ! 1 = CODE STATUS: FREE ! ! ! ! ! 2 = CODE STATUS: RESERVED ! ! ! ! ! 3 = CODE STATUS: OCCUPIED FROM UP ! ! ! ! ! 4 = CODE STATUS: OCCUPIED FROM DOWN ! ! ! ! ! 5 = CODE STATUS: NOT IN USE ! ! ! ! ! 6 = CONNECTION TYPE: RT code ! ! ! ! ! 7 = CONNECTION TYPE: NRT codes ! ! ! ! ! 8 = CONNECTION TYPE: Common codes ! ! ! ! ! 9 = CONNECTION TYPE: RT and NRT ! ! ! ! ! A = CONNECTION TYPE: Signaling ! ! ! ! ! B = Search code by MS_ID ! ! ! ! ! C = Search code by CODE_ID ! ! ! ! Output only codes of selected spreading factor ! ! ! ! 0 = ALL SF levels(default),4,8,16,32,64,128,256,512



T - code tree – common channels001C-E2K>T:1,7DB,,8;

===============================================================================CODE TREE OUTPUT 2005-12-06 21:50:03.61BTS 0001 CELL INDEX 0001 CELL ID 07DB (HEX) 00001 0001 02011 (DEC)===============================================================================Optimisation allowed TRUE Optimisation incomplete FALSEOptimisation counter 00011 / 00040Continue optimisation from here 00000Optimisation timer (sec) 03600Code tree usage (%) 40

SPREADING FACTOR 64------------------------------------------------------------------------------- OCCUPATION INDEX SF ID STATUS OC OU OD MS_ID C_DOWN C_UP CONNECT TYPE -0065 0064 0001 RESERV T F F 0000 00000 00000 COMMON SCCPCH1

SPREADING FACTOR 256------------------------------------------------------------------------------- OCCUPATION INDEX SF ID STATUS OC OU OD MS_ID C_DOWN C_UP CONNECT TYPE -0256 0256 0000 RESERV T F F 0000 00000 00000 COMMON CPICH -0257 0256 0001 RESERV T F F 0000 00000 00000 COMMON PCCPCH -0258 0256 0002 RESERV T F F 0000 00000 00000 COMMON AICH -0259 0256 0003 RESERV T F F 0000 00000 00000 COMMON PICH ===============================================================================

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7 RRC and BRM