The document discusses the Dynamic Channel Configuration Control (DCCC) functionality. DCCC allows for dynamic adjustment of service channels according to radio conditions and user behavior to improve service quality and optimize radio resource usage. DCCC is based on data volume or throughput. It defines parameters for thresholds, measurement periods, and adjustment strategies to dynamically increase or decrease channel rates based on traffic measurements. The goal is to make efficient use of resources by adjusting channels according to real-time network conditions.

1. Telefónica Movistar México - TeMM
Realizado por:
Héctor Ochoa
18 de Agosto de 2.015 – R28
Revisión de Funcionalidad:
DCCC - Dynamic Channel Configuration Control

2. Dynamic Channel Configuration Control
• Introducción
Los servicios Best Effort están compuestos por
los servicios Interactive y background.
Las velocidades de los servicios BE varian en gran
medida, por lo que es al realizarse un ajuste
dinámico de los canales de servicio se logra un uso
más eficiente de los recursos.
La funcionalidad DCCC permite realizar un ajuste
dinámico de los canales de servicio de acuerdo a
las condiciones de radio y comportamiento del
usuario que permite mejorar la calidad del servicio
y optimizar el uso de los recursos de radio.
Funcionamiento del DCCC

3. Configuración DCCC
 Activación
Model Feature ID Description Included in the
TeMM Network
RNC NodeB UE Other
Network Units
CN Other Features
QW1SUPAINP00 WRFD-01061208 HSUPA DCCC N NA NA NA NA NA WRFD-010612 HSUPA Introduction Package.
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
DCCC Switch UCORRMALGOSWITCH DRA_DCCC_SWITCH ON ON
When the switch is on, the dynamic channel reconfiguration control
algorithm is used for the RNC.
Ok
HSUPA DCCC Switch UCORRMALGOSWITCH DRA_HSUPA_DCCC_SWITCH ON ON
When the switch is on, the DCCC algorithm is used for HSUPA. The DCCC
switch must be also on before this switch takes effect.
Ok
No hay Licencia en
RNC.
 Tipos de DCCC

4. DCCC Basado en Volumen de Datos
• Si el volumen de tráfico es muy
elevado, se genera un evento 4A.
• Si el volumen de tráfico es muy
bajo se genera un evento 4B.
Traffic Measurement Event 4A Thd.
(Event4aThd)
Pending Time After
Triggering of Event 4A
(TimetoTrigger4A)
Pending time after trigger 4A
(PendingTime4A)
 Ajuste de Rates 4A:
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
Traffic Measurement
Event 4A threshold
UTYPRABDCCCMC Event4aThd - 1024 Bytes Traffic upper limit for the DCH to trigger event 4A. Común: 1024 Bytes
Pending Time After
Triggering of Event
4A
UTYPRABDCCCMC TimetoTrigger4A - 240 ms
Holding period before triggering event 4A for DCH traffic. Event 4A is reported when the DCH traffic volume
exceeds the value for Event4aThd for a period of time longer than the value for TimetoTrigger4A.
Común: 240ms
Pending time after
trigger 4A
UTYPRABDCCCMC PendingTime4A - 4000 ms Period during which event 4A for DCH traffic cannot be reported again after one such event is reported. Común: 4s

5.  Ajuste de Rates 4B:
Traffic Measurement Event 4B Thd.
(Event4bThd)
Pending time after trigger 4B
(PendingTime4B)
Pending Time After Triggering of
Event 4B
(TimetoTrigger4B)
DCCC Basado en Volumen de Datos
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
Traffic Measurement
Event 4B threshold
UTYPRABDCCCMC Event4bThd - - Traffic lower limit for the DCH to trigger event 4B. Común: 256 Bytes
Pending Time After
Triggering of Event
4B
UTYPRABDCCCMC TimetoTrigger4B - 2560ms
Holding period before triggering event 4B for DCH traffic. Event 4B for DCH traffic is reported when the DCH traffic
volume does not exceed the value for Event4bThd for a period of time longer than the value for TimetoTrigger4B.
Común: 2560 y 30000 ms
Pending time after
trigger 4B
UTYPRABDCCCMC PendingTime4B 4000 ms Period during which event 4B for DCH traffic cannot be reported again after one such event is reported. Común: 4s
• Si el volume de tráfico es muy
elevado, se genera un evento 4A.
• Si el volume de tráfico es muy bajo
se genera un evento 4B.

6.  Ajuste de Rates:
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
DCCC Strategy UDCCC DcccStg
RATE_UP_A
ND_DOWN_
ON_DCH
RATE_UP_AND
_DOWN_ON_D
CH
Strategy for adjustment of the rate of the PS BE service when the UE is in the CELL_DCH state.
RATE_UP_AND_DOWN_ON_DCH indicates that the rate over the DCH can be raised or lowered.
RATE_UP_ONLY indicates that the rate over the DCH can only be raised. When UE is in low activity state, it
is no need to degrade the traffic rate to the threshold for DCCC before state transition to CELL_FACH. That
means UE can transit to CELL_FACH state at any rate.
Ok
HSUPA DCCC
Strategy
UDCCC HsupaDcccStg
RATE_UP_A
ND_DOWN_
ON_EDCH
RATE_UP_AND
_DOWN_ON_E
DCH
Strategy of the UE for rate adjustment over the EDCH. RATE_UP_AND_DOWN_ON_EDCH indicates that the
rate over the EDCH can be raised or lowered. RATE_UP_ONLY_ON_EDCH indicates that the rate over the
EDCH can only be raised. When UE is in low activity state, it is no need to degrade the traffic rate to the
threshold for HSUPA DCCC before state transition to CELL_FACH. That means UE can transit to CELL_FACH
state at any rate over the EDCH.
Ok
Uplink Rate Increase
Adjust Level
UDCCC UlRateUpAdjLevel 3_Rates 3_Rates Uplink data rate increasing level for BE services carried over the DCH in the uplink. Ok
Uplink Rate
Decrease Adjust
Level
UDCCC UlRateDnAdjLevel 3_Rates 3_Rates Uplink data rate decreasing level for BE services carried over the DCH in the uplink. Ok
DCCC Basado en Volumen de Datos

7. Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
Uplink Mid Bit Rate
Calculate Method
UDCCC UlMidRateCalc AUTO_CALC
HAND_APPOIN
T
This parameter determines whether the uplink intermediate rate uses automatic or manual mode when using 3-
step adjustment.
COLAG1X, GDLPN1X, GDLPN2X,
URUC1X: AUTO_CALC
Uplink Mid Bit Rate
Threshold
UlMidRateThd NA D128
Threshold of the UL intermediate rate when the 3-step mode is used for UL rate adjustment and the manual mode
is used for UL intermediate rate adjustment.
COLAG1X, GDLPN1X, GDLPN2X,
URUC1X: AUTO_CALC
Uplink Bit Rate
Threshold for DCCC
UDCCC UlDcccRateThd 32, 128 kbps 64kbps
For BE services with an excessively low maximum rate, the DCCC algorithm performance can introduce only little
gain, but increases the algorithm processing workload. Therefore, the DCCC algorithm based on the uplink
coverage can be enabled only for BE services whose maximum uplink rate exceeds this threshold.
OAXCZ1X 32, TIJPA1X 128 Trial: 32kbps
Downlink Bit Rate
Threshold for DCCC
UDCCC DlDcccRateThd 64kbps 64kbps
For BE services with an excessively low maximum rate, the DCCC algorithm performance can introduce only little
gain, but increases the algorithm processing workload. Therefore, the DCCC algorithm based on the uplink
coverage can be enabled only for BE services whose maximum uplink rate exceeds this threshold.
Ok Trial: 32kbps
Low Activity Bit Rate
Threshold
UDCCC LittleRateThd 64kbps 64kbps
Bit rate threshold for low activity. When a BE service's data rate is decreased to the one for DCCC and conditions
for a D2F state transition are met, the RNC decreases the data rate to the one for low activity if the D2F state
transition cannot be performed. The reason for the failed D2F state transition can be that the switch for the
transition to the CELL_FACH state is turned off or that CS services are going on.
Ok
Trial: 32 ó 16
kbps
128 kbps
64 kbps Little Rate Thd  64 kbps
DCCC Basado en Volumen de Datos
 Ajuste de Rates:
Se repite para Downlink,
misma configuración

8.  Ajuste de Rates
128 kbps
64 kbps
Servicio Cantidad Porcentaje en la Red Objetivo
CS 12.2kbps 9558 100.0% 100%
PS 0kbps 9558 100.0% 100%
PS 8kbps 9558 100.0% 100%
PS 16kbps 9558 100.0% 100%
PS 32kbps 9544(14) 99.9% 100%
PS 64kbps 9444(114) 98.8% 100%
PS 128kbps 9381(177) 98.1% 100%
PS 144kbps 671 7.0% 0%
PS 256kbps 670 7.0% 0%
PS 384kbps 654 6.8% 0%
 Se debe homologar la configuración de RB en toda la red  Max. RB=128kbps.
 Se debe ejecutar alguna de las siguientes acciones:
1. Reducir el Middle Rate Threshold  Acción Recomendada (Trial Propuesto).
2. Cambiar el Mid Bit Rate Calculate Method a Auto_Calc.
3. Habilitar el RB de 256 kbps.
RB Configurados en la Red
DCCC Basado en Volumen de Datos

9.  Activación
DCCC Basado en Throughput
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
Throughput HSUPA
DCCC
UCORRMALGOSWI
TCH
DRA_THROUGHPUT_D
CCC_SWITCH
OFF ON When the switch is on, the DCCC based on traffic statistics is supported over the DCH.
MXLNE1X, COLAG1X, GDLPN1X,
GDLPN2X, TEPSL1X, URUCU1X,
ACAPV2X, CHPPV2X, OAXCZ1X
Corregir
 Descripción
Se debe homologar la configuración en todas las RNC.
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
DCH Throu Meas
Period
UDCCC DchThrouMeasPeriod 100(10ms) 100(10ms)
This parameter specifies the period of DCH throughput ratio measurement.Macd performs statistic of traffic
volume on DCH and reports 4B events which are used for the rate decrease process of BE service set up on DCH.
ok
E-DCH Throu Meas
Period
UUESTATETRANS E2FThrouMeasPeriod 20(10ms) 30(10ms)
Period of E-DCH throughput ratio measurement. This parameter specifies the period of E-DCH throughput ratio
measurement. The throughput ratio over the E-DCH is periodically measured to implement state transition from E-
DCH to FACH and DCCC algorithm on EDCH.
MXLNE1X, TIJPA1X

10.  DCH
DCCC Basado en Throughput
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
Number of MRs
Before Triggering of
Event 4B on DCH
UTYPRABDCCCMC
DchThrouTimetoTrigg
er4B
- 2
Number of measurement periods before triggering event 4B for DCH throughput. This parameter ensures event 4B
is not repeatedly reported when DCH throughput fluctuates. Event 4B for DCH throughput is reported when DCH
throughput does not exceed the related threshold for event 4B for a number of measurement periods which is
larger than the value for DchThrouTimetoTrigger4B.
Común: 2
Number of MRs
Between Two Events
4B on DCH
UTYPRABDCCCMC
DchThrouPendingTim
e4B
- 16
Number of measurement periods during which event 4B for DCH throughput cannot be reported again after one
such event is reported. This parameter helps prevent event 4B from being reported many times after one such
event is already reported and UEs' data rates fail to be decreased.
Común: 16

11.  HSUPA
DCCC Basado en Throughput
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
Number of MRs
Before Triggering of
Event 4A on EDCH
UTYPRABDCCCMC EdchTimetoTrigger4A - 2
Number of measurement periods before triggering event 4A for uplink E-DCH throughput. Event 4A for uplink E-DCH
throughput is reported when the uplink E-DCH throughput exceeds the related threshold for event 4A for a number
of measurement periods which is larger than the value forEdchTimetoTrigger4A.
Común: 2
Number of MRs
Between Two Events
4A on EDCH
UTYPRABDCCCMC EdchPendingTime4A - 16
Number of measurement periods during which event 4A for E-DCH throughput cannot be reported again after one
such event is reported. This parameter helps prevent event 4A from being reported many times after one such
event is already reported and UEs' data rates fail to be increased.
Común: 16
Number of MRs
Before Triggering of
Event 4B on EDCH
UTYPRABDCCCMC EdchTimetoTrigger4B - 2
Number of measurement periods before triggering event 4B for uplink E-DCH throughput. Event 4B for uplink E-DCH
throughput is reported when the uplink E-DCH throughput does not exceed the related threshold for event 4B for a
number of measurement periods which is larger than the value for EdchTimetoTrigger4B.
Común: 2
Number of MRs
Between Two Events
4B on EDCH
UTYPRABDCCCMC EdchPendingTime4B - 16
Number of measurement periods during which event 4B for E-DCH throughput cannot be reported again after one
such event is reported. This parameter helps prevent event 4B from being reported many times after one such
event is already reported and UEs' data rates fail to be decreased.
Común: 16
E2FThrouThd = 8kbps
EdchRateAdjustSet Auditoria Fuera de Baseline
11480 KBPS::OFF OK
5440 KBPS::OFF OK
2720 KBPS::OFF OK
2048 KBPS::OFF Error ON: NOGCO1X, GDLPN2X, MORPM1X, PVACH1X
1280 KBPS::OFF Error
ON: NOGCO1X, COLAG1X, GDLPN1X, GDLPN2X,
MORPM1X, PVACH1X, TEPSL1X, URUCU1X
608 KBPS::ON OK
384 KBPS::OFF Error ON: MORPM1X, PVACH1X, URUCU1X.
256 KBPS::ON OK
144 KBPS::OFF Error ON: MORPM1X, PVACH1X, URUCU1X.
128 KBPS::ON Error OFF: MORPM1X
64 KBPS::OFF Error ON: URUCU1X, ACAPV2X - Trial 64Kbps
32 KBPS::OFF Error ON: ACAPV2X
16 KBPS::OFF Error ON: Todo menos PVACH1X, ACAPV2X
Rate Threshold Rate Ratio Real Threshold
11480kbps 70% 8036 kbps
5440 kbps 70% 3808 kbps
2720 kbps 70% 1904 kbps
2048 kbps 75% 1536 kbps
1280 kbps 75% 960 kbps
608 kbps 75% 456 kbps
384 kbps 75% 288 kbps
256 kbps 80% 204.8 kbps
144 kbps 80% 115.2 kbps
128 kbps 80% 102.4 kbps
64 kbps 90% 57.6 kbps
32 kbps 80% 25.6 kbps
16 kbps 80% 12.8 kbps

12.  Descripción:
Sólo aplica para el decremento de rates una vez que la celda entra en estado de congestion LDR.
Aplica para UL y DL.
DCCC Basado en LDR
 Si el rate actual es igual al MBR. Se
redice hasta el Middle Rate.
 Si el rate actual se encuantra entre el
GB y el MBR, se reduce hasta el GBR.
 Una vez el sector sale del estado de
congestion LDR. El aumento de rate
se realiza en base al algoritmo DCCC.
 Ajuste de Rates:

13.  Guaranteed Bit Rates:
Interactive (kbps) Background (kbps)
RNC Nombre Región UL GBR DL GBR UL GBR DL GBR
ENSBV1X Ensenada 1 64 64 32 64
LPZNB1X La Paz 1 64 64 32 64
MXLNE1X Mexicali 1 64 64 32 64
SJCCC1X San José del Cabo (Los Cabos) 1 64 64 32 64
TIJPA1X Tijuana 1 64 64 32 64
CULPM1X Culiacán 2 64 64 32 32
GUYCV1X Guaymas 2 64 64 32 32
HERHE1X Hermosillo 2 8 8 32 32
LMCAL1X Los Mochis 2 64 64 32 32
MZTCN1X Mazatlán 2 64 64 32 32
NOGCO1X Nogales 2 64 64 32 32
OBRNB1X Obregón 2 64 64 32 32
MTYCO2X Monterrey Corregidora 4 64 64 32 64
MTYMJ2X Monterrey Jimenez 4 64 64 32 64
COLAG1X Colima 6 64 64 32 64
GDLPN1X Guadalajara 1 6 64 64 64 64
GDLPN2X Guadalajara 2 6 64 64 64 64
MORPM1X Morelia 6 64 64 32 64
PVACH1X Puerto Vallarta 6 64 64 64 64
TEPSL1X Tepic 6 64 64 64 64
URUCU1X Uruapan 6 32 64 32 64
ACAPV2X Acapulco 8 64 64 32 64
CHPPV2X Chilpancingo 8 64 64 32 64
OAXCZ1X Oaxaca 8 64 64 32 64
IGUIM1X Iguala 9 64 64 32 64
IXTBA3X Ixtlahuaca 9 64 64 32 64
TOLJM2X Toluca 9 64 64 32 64
DCCC Basado en LDR

14.  Parámetros Asociados al Link Stability Control
• SET UQUALITYMEAS
BE Trigger Time 6A1
BE Trigger Time 6B1
BE Trigger Time 6A2
BE Trigger Time 6B2
BE Trigger Time 6D
BE Trigger Time of Event E
BE Reporting Period Unit for Event E
BE Event E Reporting Period
BE Trigger Time of Event F
BE Reporting Period Unit for Event F
BE Event E Reporting Period
• MOD UTYPRABQUALITYMEAS
Uplink Event 6A1 Relative Threshold
Uplink Event 6A2 Relative Threshold
Uplink Event 6B1 Relative Threshold
Uplink Event 6B2 Relative Threshold
Event 5A Threshold
Event Ea Relative Threshold
Event Eb Relative Threshold
DCCC Basado en Estabilidad del Enlace

15.  Ajuste de Rates
 DCCC Estabilidad Enlace - UlFullCvrRate
• DCCC Volumen de Datos - UlDcccRateThd
• DCCThroughput - UlDcccRateThd
• DCCC LDR - GBR
Parámetro Comando Nombre Actual Recom. Descripción Auditoria Comentarios
Uplink Full Coverage
Bit Rate
UDCCC UlFullCvrRate 64kbps 64kbps
The uplink full coverage rate refers to the maximum uplink service rate configured in the UTRAN when uplink links
are unstable. The rate can be regarded as the uplink peak rate in the coverage areas of the cell plan.
If this parameter is set to a very large value, the call drop rate increases when UEs' data rates are decreased to the
bit rate for full coverage. If this parameter is set to a very small value, the bandwidth for the UEs whose data rates
are decreased to the bit rate for full coverage is too low. This causes the QoS to deteriorate.
ok
Downlink Full
Coverage Bit Rate
UDCCC DlFullCvrRate 64kbps 64kbps
The downlink full coverage rate refers to the maximum downlink service rate configured in the UTRAN when
downlink links are unstable. The rate can be regarded as the downlink peak rate in the coverage areas of the cell
plan. If the downlink TCP rate is limited and the current maximum downlink rate is higher than the full coverage
rate, the rate is reduced to the full coverage rate of the cell plan.
If this parameter is set to a very large value, the call drop rate increases when UEs' data rates are decreased to the
bit rate for full coverage. If this parameter is set to a very small value, the bandwidth for the UEs whose data rates
are decreased to the bit rate for full coverage is too low. This causes the QoS to deteriorate.
ok
DCCC Basado en Estabilidad del Enlace

16. Conclusión
Se debe validar con Huawei si el feature HSUPA DCCC requiere licencia. Actualmente la
funcionalidad se encuentra activa pero no se encuentra la licencia en la RNC.
DCCC Basado en Volumen de Datos
1. Existen 4 RNC con el parámetro UlMidRateCalc/DlMidRateCalc configurado en AUTO CALC. Se
recomienda homologar toda la red en HAND APPOINT (COLAG1X, GDLPN1X, GDLPN2X,
URUC1X), se esperará el resultado de Actividad 5.
2. En dos RNC no se encuentra homologado el UlDCCCRateThd (OAX: 32 y TIJ: 128). Se
recomienda configurarlo en 64kbps (se esperará el resultado de Actividad 5).
3. [Trial] Se propone modificar el LittleRateThd de 64 a 32 kbps en RNC MXLNE1X (Posee alto
tráfico R99).
4. Se debe homologar la configuración de RB en toda la red:
 Agregar:
• RB 32kbps:14 sectores
• RB 64kbps: 114 sectores
• RB 128kbps: 177 sectores
 Remover:
• RB 144kbps: 671 sectores
• RB 256kbps: 670 sectores
• RB 384kbps: 654 sectores

17. Conclusión
5. [Trial] Se recomienda reducir el Middle Rate Threshold de 128 kbps a 64 kbps (UL y DL) en
RNC TEPSL1X.
 Se debe realizar también el decremento de UlDcccRateThd/DlDcccRateThd de 64 a
32kbps.
DCCC Basado en Throughput
6. Se debe activar la funcionalidad en todas las RNC, DRA_THROUGHPUT_DCCC_SWITCH=ON
en 9 RNC (MXLNE1X, COLAG1X, GDLPN1X, GDLPN2X, TEPSL1X, URUCU1X, ACAPV2X,
CHPPV2X, OAXCZ1X).
7. Homologar el E2FThrouMeasPeriod a 30 en MXLNE1X y TIJPA1X.
8. [Trial] Realizar ajuste de rates HSUPA en URUCU1X. Posee 8 rates activos (16, 64, 128, 144,
256, 384, 608, 1280). Desactivar los rates en color rojo.

18. Conclusión
DCCC Basado en LDR
9. [Trial] Homologar el GBR UL y DL para el servicio Interactive en HERHE1X (8 a 64 kbps).
10. [Trial] Reducir el GBR DL para el servicio Background en RNC TOLJM2X de 64 a 32kbps (alta
congestión de códigos).
DCCC Basado en Estabilidad de Enlace
11. Activar funcionalidad en TIJPA1X y GDLPN1X (BEQosPerform=ON).
12. [Trial] Agregar RateDegrade como 1era acción UL (BEUlAct1) en RNC ACAPV2X.

19. ¡Gracias por su atención!