zte umts amr-nb & amr-wb feature guide
TRANSCRIPT
AMR-NB & AMR-WB WCDMA RAN
Feature Guide
AMR-NB & AMR-WB Feature Guide
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. I
AMR-NB & AMR-WB Feature Guide
Version Date Author Approved By Remarks
V4.5 2010-10-
15
Hu Xingxing/
Huang He Guo tian
© 2010 ZTE Corporation. All rights reserved.
ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or
used without the prior written permission of ZTE.
Due to update and improvement of ZTE products and technologies, information of the document is
subjected to change without notice.
AMR-NB & AMR-WB Feature Guide
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TABLE OF CONTENTS
1 Functional Attribute ............................................................................................ 1
2 Overview ............................................................................................................. 1
2.1 Function Introduction ............................................................................................. 1
2.1.1 CS Conversational RAB for AMR Speech ............................................................ 3
2.1.2 WB-AMR Speech Support .................................................................................... 3
2.1.3 AMR Rate Controlling ............................................................................................ 4
2.1.4 TrFO ...................................................................................................................... 4
3 Technical Description ........................................................................................ 5
3.1 CS AMR Voice and Session Service Bearer ........................................................ 5
3.1.1 Implementation Mechanism of CS AMR Voice and Session Service Bearer Function ................................................................................................................ 5
3.1.2 Signaling Flow of AMR Service ............................................................................. 6
3.2 AMR-WB Voice Service ........................................................................................ 8
3.2.1 Implementation Mechanism of AMR-WB Functions ............................................. 8
3.3 Dynamic AMR Adaptation ................................................................................... 10
3.3.1 Classification of Dynamic AMR Adaptation......................................................... 10
3.3.2 Dynamic AMR Adaptation Based on Single-Link Transmission Power ............. 11
3.3.3 Dynamic Adjustment Triggered by Resource Congestion ................................. 14
3.3.4 Dynamic Adjustment Triggered by Load............................................................. 15
3.4 TrFO Support ...................................................................................................... 15
3.4.1 OoBTC Outband Codec Control......................................................................... 16
3.4.2 IuUP Initialization ................................................................................................. 17
3.4.3 IuUP Rate Control ............................................................................................... 17
4 Parameters and Configuration........................................................................ 19
4.1 Parameter List of AMR Dynamic Rate Adjustment ............................................ 19
4.1.1 Configuration of AMR Dynamic Rate Adjustment Parameters........................... 20
5 Counter and Alarm ............................................................................................ 26
5.1 Counter List ......................................................................................................... 26
5.2 Alarm List ............................................................................................................ 30
6 Glossary ............................................................................................................. 30
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FIGURES
Figure 3-1 Signaling Flow of AMR Service ................................................................................ 7
Figure 3-2 UE Transmission Power Measurement Event Report (Trigger Time is fixed to be 100ms) ...................................................................................................................................... 12
Figure 3-3 NodeB DTCP Measurement Event Report (Hysteresis Time is fixed to be 100ms) .................................................................................................................................................. 14
Figure 3-4 Flow of OoBTC Outband Codec Control ............................................................... 16
Figure 3-5 IuUP Initialization..................................................................................................... 17
Figure 3-6 Flow of IuUP Rate Control ...................................................................................... 18
TABLES
Table 2-1 AMR-NB Rate Classification...................................................................................... 2
Table 2-2 AMR-WB Rate Classification .................................................................................... 2
Table 4-1 Parameter List ......................................................................................................... 19
AMR-NB & AMR-WB Feature Guide
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1 Functional Attribute
System version: [RNC V3.09, OMMR V3.09, Node B V4.09, OMMB V4.09]
Attribute: [Optional]
NEs involved:
UE NodeB RNC MSCS MGW SGSN GGSN HLR
√ - √ √ √ - - √
Note:
*-: No NE is involved.
*√: An NE is involved.
Dependency: [None]
Mutual exclusion: [None]
Remarks: [None]
2 Overview
2.1 Function Introduction
The present 3GPP employs narrowband AMR (AMR-NB) and wideband AMR (AMR-WB).
For the AMR-NB, the speech channel bandwidth is limited to 3.7 kHz, and the sampling
frequency is 8,000 Hz. For the AMR-WB, the speech channel bandwidth is up to 7 kHz,
and the sampling frequency is up to 16,000 Hz. The AMR-WB has better speech quality
than the AMR-NB, although the two modes have the same frame length of 20ms.
AMR is introduced into the 3G system based on the following considerations :
By means of the AMR Control (AMRC), voice rate can be reduced to improve voice
quality. In addition, system load can be effectively lightened. In the case of certain
radio load, if users want to obtain the optimal subjective feeling of voice quality, the
most suitable AMR is not the maximum rate, but a suitable medium rate. By
weighing load, the AMRC can achieve the following goals:
The AMRC can reduce an AMR when load is heavy. This lightens system load
and improves voice quality.
The AMRC can increase an AMR when load is light. In this way, QoS is greatly
improved.
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When uplink coverage is limited, AMR can be reduced to effectively widen uplink
coverage. In initial WCDMA network construction, both uplink coverage and downlink
capacity are limited; therefore, it is especially important to widen uplink coverage.
The Adaptive Multi-Rate (AMR) is also called the AMR-NB (Narrowband). This service has
three service RBs, and can provide eight speech rates and two mute rates, as shown in
Table 2-1:
Table 2-1 AMR-NB Rate Classification
AMR
Codec Mode
Total Number
of Bits
Sub-
flow 1
Sub-
flow 2
Sub-
flow 3
Codec Mode
AMR 4.75 kbps 95 42 53 0 AMR_4.75
AMR 5.15 kbps 103 49 54 0 AMR_5.15
AMR 5.9 kbps 118 55 63 0 AMR_5.90
AMR 6.7 kbps 134 58 76 0 AMR_6.70
AMR 7.4 kbps 148 61 87 0 AMR_7.40
AMR 7.95 kbps 159 75 84 0 AMR_7.95
AMR 10.2 kbps 204 65 99 40 AMR_10.20
AMR 12.2 kbps 244 81 103 60 AMR_12.20
AMR SID 39 39 0 0 AMR_SID
GSM-EFR SID 43 43 0 0 GSM-EFR SID
*SID (Silence Descriptor)
AMR-NB voice coding is divided into three sub-flows out of consideration for the
importance of information and error tolerance in voice coding. Each sub-flow requires its
own QoS assurance. Sub-flow 1 is the most important. Sub-flow 2 comes next. Sub-flow 3
is the least important. Sub-flow 1 needs better channel coding at an air interface to
guarantee its accuracy. No data rate is the coding in the case of mute. SID uses this
frame to indicate that current voice is not activated.
AMR-WB is short for Adaptive Multi-Rate Wideband. This service was introduced in 1999
in order to provide better speech quality and speech reproducibility. It can be applied both
in 3G system and GSM system.
Unlike AMR-NB, the AMR-WB has only two service RBs and provides nine speech rates
and one mute rate, as shown in the Table 2-2 below:
Table 2-2 AMR-WB Rate Classification
AMR-WB
Codec Mode
Total Number
of Bits
Sub-
flow 1
Sub-
flow 2
Sub-
flow 3
Codec Mode
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AMR-WB
Codec Mode
Total Number
of Bits
Sub-
flow 1
Sub-
flow 2
Sub-
flow 3
Codec Mode
1.75 40 40 0 0 AMR-WB_SID*
6.60 132 54 78 0 AMR-WB_6.60
8.85 177 64 113 0 AMR-WB_8.85
12.65 253 72 181 0 AMR-WB_12.65
14.25 285 72 213 0 AMR-WB_14.25
15.85 317 72 245 0 AMR-WB_15.85
18.25 365 72 293 0 AMR-WB_18.25
19.85 397 72 325 0 AMR-WB_19.85
23.05 461 72 389 0 AMR-WB_23.05
23.85 477 72 405 0 AMR-WB_23.85
*SID (Silence Descriptor)
Like the AMR-NB, the AMR-WB sub-flow 1 contains the most important information of
speech, with 12-bit CRC protection added on the air interface. The sub-flow 2 contains less
important speech information, without CRC protection on the air interface.
2.1.1 CS Conversational RAB for AMR Speech
ZTE equipment supports all the eight AMRs: 12.2kbps, 10.2kbps, 7.95kbps, 7.4kbps,
6.7kbps, 5.9kbps, 5.15kbps, and 4.75kbps. What rate (s) to be used is same as the rate(s)
in RAB Assignment from CN. ZTE equipment supports DTX and SID.
The RAB parameters of ZTE RAN equipment, used to bear session AMR services, follow
the definition in the 3GPP TS 34.108.
2.1.2 WB-AMR Speech Support
ZTE RAN equipment supports all the nine speech rates of WB-AMR session, that is,
23.85Kbps, 23.05Kbps, 19.85Kbps, 18.25Kbps, 15.85Kbps, 14.25Kbps, 12.65Kbps,
8.85Kbps, 6.6Kbps, together with the mute rate 1.75 Kbps. The rate-(s) to be used is the
same as the rate(s) in RAB Assignment from CN. ZTE RNC enables and disables the
function of WAMR by the parameter WAMRSUPIND.
ZTE RNC does not support RAB negociation between AMR-NB and AMR-WB. When the
AMR-WB can not be established because of resources congestion, it is not supported to
establish AMR-NB by RAB negociation.
The RAB parameters of ZTE RAN equipment, used to bear session AMR-WB services,
follow the definition in the 3GPP TS 34.108.
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2.1.3 AMR Rate Controlling
In WCDMA system, the radio environment between UE and a base station always
changes. When a UE is far away from the base station or the radio environment degrades,
the base station or UE is bound to transmit at a higher power under the action of closed-
loop power control in order to guarantee the QoS of AMR service. The power change and
power increase at this time may result in sharp increase in power and further deterioration
of the radio environment. As a result, the system capacity decreases. Even when the
power is increased to even a certain limit value, QoS requirements of service can not be
satisfied.
ZTE RNC equipment can monitor the uplink transmission power of UE in a UE internal
measurement report or the downlink transmission power of a Node B dedicated
measurement report base station. When the uplink or downlink transmission power rises
to a certain threshold, the RNC will automatically adjust this user's AMR to reduce the
power necessary for service. That is, a conversation is most probably kept going by
reducing voice quality. When the radio environment between UE and the base station is
good and the transmission power of the base station or UE decreases to a certain
threshold, AMR can be increased to provide users with better voice quality as long as
other users' feeling and system performance are not affected.
In addition, when a cell evaluated by means of downlink transmission power and uplink
interference has high downlink load and uplink load, ZTE RNC equipment can lighten the
cell load by reducing the AMR of some low-priority users, so as to accommodate more
users.
The actual AMR which can be adjusted by the RNC must belong to the AMR code set
configured for users by the CN during call establishment. The voice quality when low-rate
AMR coding is used is not as good as that when high-rate AMR coding is used, but low-
rate AMR coding has higher capacity (number of users) and wider coverage than high-rate
AMR coding. Analysis of simulation result shows that there is about 30% coverage radius
gain when the lowest AMR (4.75Kbps) instead of the highest AMR (12.2Kbps) is used.
When the lowest AMR is used, a cell will accommodate twice as many users as those
when the highest AMR is used.
2.1.4 TrFO
WCDMA employs AMR compressed voice encoding. The maximum encoding rate is
12.2kbit/s. At the R99 stage, TDM bearer is used between CS core network devices, and
voice must employ 64kbit/s PCM encoding. One very important function of the R99 MSC is
voice Transcoder (TC), which converts the AMR voice codes of a mobile terminal into PCM
codes and transmits them over a network. The calls between mobile users require two
voice encoding/decoding conversions, that is, AMR-PCM-AMR. Frequent
encoding/decoding reduces voice quality.
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In view of this, the 3GPP organization has introduced the Tandem Free Operation (TFO)
and Transcoder Free Operation (TrFO) in the R4 protocol to avoid voice encoding/decoding.
Meantime, the TFO and TrFO help save the transmission network bandwidth between core
networks. The differences between both technologies are as follows: The TFO still needs
TC resource. After call establishment, a direct connection is established between the TCs
of the calling and called MSCs by means of in-band signaling negotiation to bypass
encoding/decoding. The TrFO does not need any TC resource at all. It means that outband
signaling encoding/decoding function (OoBTC) is used during call establishment to
implement consistent voice encoding/decoding negotiation between UE and network.
The TFO technology is implemented in the core network equipment. It does not need the
participation of RAN equipment. The TrFO technology requires that RAN equipment should
support outband voice encoding negotiation and the processing related to a user plane.
Both the TFO and TrFO can be used for AMR-WB encoding.
ZTE RAN equipment supports the TrFO function and complies with the 3GPP TS 23.153
and TS 25.415.
3 Technical Description
3.1 CS AMR Voice and Session Serv ice Bearer
3.1.1 Implementation Mechanism of CS AMR Voice and Session Service
Bearer Function
Selection of AMR-NB Rates
Function description: The 3GPP protocol defines eight speech rates and two mute
rates for AMR-NB, which supports the speech rate up to 12.2k. A database saves all
the rate configuration combinations of AMR-NB. According to the maximum rate of
AMR-NB in a CN assignment message, the RNC searches for corresponding
configuration information from the database.
Setup of Single AMR-NB Service and Concurrence with the PS Service
Function description: This function supports the setup of a single AMR-NB service
and the concurrency of AMR-NB and PS services.
Three Service RBs Established for the AMR-NB
Function description: This function supports service transformation by means of three
service RBs and reconfiguration.
Mobility of AMR-NB
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Function description: This function supports soft handover, hard handover, and
relocation of AMR-NB service, and handover between 2G and 3G.
Directed Retry of the AMR-NB Service During Assignment
Function description: This function supports directed retry of AMR-NB service during
service assignment.
Default Configuration of AMR-NB rates: 12.2k, 12.2/7.95/5.9/4.75k and 7.95kbps.
Function description: This function supports the default configuration of AMR-NB
rates: 12.2k, 12.2/7.95/5.9/4.75k and 7.95kbps. It is used for the handover between
2G and 3G. The RNC establishes bearer according to this default configuration, sets
the default configuration in the HANDOVER TO UTRAN COMMAND message, and
sends this message to the UE through the 2G network.
RAB Modification of AMR-NB
Function description: This function does not support RNC initiates the RAB
modification of AMR-NB service; it supports CN initiates the RAB modification of
AMR-NB service. At present, the main scenarios for the CN to initiate RAB
modification to the AMR-WB include the TFO or TrFO conditions satisfied after
performance of handover, call forwarding, and intelligent service.
Dynamic Rate Adjustment for AMR-NB Service
Function description: This function supports dynamic rate adjustment for the AMR-
NB service triggered by link level, resource congestion, and load control. If the rate
adjustment threshold is met, the uplink rate is controlled by the RNC through the TFC
Control, and the downlink rate is controlled by the RNC through the Iuup reverse rate
control frame.
3.1.2 Signaling Flow of AMR Service
The setup flow of the AMR-WB and AMR-NB services is practically identical to that of
common services. The following example demonstrates the setup flow of the DCH service
in the synchronous mode.
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Figure 3-1 Signaling Flow of AMR Service
6. Downlink Synchronisation
7. Uplink Synchronisation
UE Node B
Serving RNS
Serving
RNC
CN
RRC RRC
10. DCCH : Radio Bearer Setup Complete
NBAP NBAP 4. Radio Link Reconfiguration Ready
DCH-FP
NBAP NBAP 8. Radio Link Reconfiguration Commit
RRC RRC
9. DCCH : Radio Bearer Setup
Apply new transport format set
Select L1, L2 and Iu Data
Transport Bearer parameters
RANAP RANAP
11. RAB Assignment
Response
5. ALCAP Iub Data Transport Bearer Setup
2. ALCAP Iu Data
Transport Bearer Setup
Not required towards PS
domain
RANAP RANAP
1. RAB Assignment
Request
[Establishment]
NBAP NBAP 3. Radio Link Reconfiguration Prepare
[DCH Addition]
DCH-FP DCH-FP
DCH-FP
1 CN initiates establishment of the radio access bearer with RANAP message Radio
Access Bearer Assignment Request. Parameters: Radio Access Bearer
parameters, User Plane Mode, Transport Address, Iu Transport Association.
2 SRNC initiates set-up of Iu Data Transport bearer using ALCAP protocol. This request
contains the AAL2 Binding Identity to bind the Iu Data Transport Bearer to the Radio
Access Bearer (this step is not required towards PS domain).
3 SRNC requests its Node B to prepare establishment of DCH to carry the radio access
bearer (Radio Link Reconfiguration Prepare ). Parameters: Transport Format Set,
Transport Format Combination Set, Power control information.
4 Node B allocates resources and notifies SRNC that the preparation is ready (Radio
Link Reconfiguration Ready). Parameters: Transport layer addressing information
(AAL2 address, AAL2 Binding Id) for Iub Data Transport Bearer.
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5 SRNC initiates the setup of Iub Data Transport Bearer using ALCAP protocol. This
request contains the AAL2 Binding Identity to bind the Iub Data Transport Bearer to
DCH.
6 The Node B and SRNC establish synchronism for the Iub and Iur Data Transport
Bearer by means of exchange of the appropriate DCH Frame Protocol frames
Downlink Synchronization.
7 The Node B and SRNC establish synchronism for the Iub and Iur Data Transport
Bearer by means of exchange of the appropriate DCH Frame Protocol frames Uplink
Synchronization.
8 NBAP message Radio Link Reconfiguration Commit is sent from SRNC to Node
B.
9 RRC message Radio Access Bearer Setup is sent by SRNC to UE. Parameters:
Transport Format Set, Transport Format Combination Set.
10 UE sends RRC message Radio Access Bearer Setup Complete to SRNC.
11 SRNC sends RANAP message Radio Access Bearer Assignment Response to CN.
3.2 AMR-WB Voice Service
3.2.1 Implementation Mechanism of AMR-WB Functions
Selection of AMR-WB Rates
Function description: ZTE through configuring the parameter WAMRSUPIND to
support the WB-AMR. The protocol 26.201 defines nine speech rates and one mute
rate for AMR-WB, which supports the maximum speech rate of 23.85k. The database,
with the AMR-WB service added, needs to save all AMR-WB rate configuration
combinations. According to the maximum AMR-WB rate in the message assigned by
the CN, the RNC searches for corresponding configuration information from the
database.
Note: The AMR-WB supports the voice bandwidth 50Hz-7kHz (the AMR-NB supports
the voice bandwidth 200Hz-3.4kHz); therefore, it has better voice quality than the
AMR-NB. Among the rates (23.85 kbps, 23.05 kbps, 19.85 kbps, 18.25 kbps, 15.85
kbps, 14.25 kbps, 12.65 kbps, 8.85 kbps, and 6.6 kbps) supported by the AMR-WB,
12.65kbps is the minimum rate that can achieve high-quality sound effects. The MOS
values of 6.6 kbps, 8.85 kbps, and 12.65 kbps apparently increase as the rate rises.
The MOS values of 12.65kbps, 14.25kbps, 15.85kbps, 18.25kbps, and 19.85kbps do
not apparently increase as the rate rises. So the rates of 12.65 kbps, 8.85 kbps, and
6.6 kbps are recommended by 3GPP.
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Setup of Single AMR-WB Service and Concurrency with PS Service
Function description: The setup of a single AMR-WB service and the concurrency of
the AMR-WB and PS services are supported in the same way as the AMR-NB.
Three Service RBs Established for AMR-WB
Function description: Originally, the AMR-WB had only two service RBs while the
AMR-NB had three. For easy conversion between these two services through
reconfiguration, the 3GPP 25.331 and 34.108 specifications related to the AMR-WB
recommend configuration of three service RBs. The service sub-flow associated with
the third RB does not exist in the Iu port, and its actual data volume is 0 (0 × 60). The
RNC requires special processing, that is, the Iu port still supports two service sub-
flows, while the Iuup port needs to support the interconnection between two service
sub-flows and three service RBs.
Mobility of AMR-WB
Function description: Like the AMR-NB control policy, this function supports soft
handover, hard handover, relocation, and 2G-3G handover for the AMR-WB service.
This function uses the present parameters without new handover parameter added.
Directed Retry of AMR-WB Service During Assignment
Function description: Like the AMR-NB control policy, this function supports directed
retry of the AMR-WB service during service assignment. This function uses the
present parameters without new load balancing parameter added.
RAB Modification of AMR-WB
The RNC is not supported to initiate RAB modification to the AMR-WB service, while
the CN is supported to initiate the RAB modification to the AMR-WB, which is
performed in a way similar to that of the AMR-NB. At present, the main scenarios for
the CN to initiate RAB modification to the AMR-WB include the TFO or TrFO
conditions satisfied after performance of handover, call forwarding, and intelligent
service.
Dynamic Rate Adjustment for AMR-WB Service
Function description: Like the AMR-NB control policy, this function supports the
dynamic rate adjustment for the AMR-WB service triggered by link level, resource
congestion, and load control. This function uses the present parameters without new
load control parameter added. If the rate adjustment threshold is met, the uplink rate
is controlled by the RNC through the TFC Control, and the CN downlink rate is
controlled by the RNC through the Iuup reverse rate control frame.
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3.3 Dynamic AMR Adaptation
3.3.1 Classification of Dynamic AMR Adaptation
According to the types of AMR, dynamic AMR adaptation is classified into AMR-NB
dynamic rate adjustment and AMR-WB dynamic rate adjustment. The AMR-WB rate
adjustment principles and steps are the same as those of the AMR-NB. In Iuup Version1,
ZTE RNC configures the AMR-NB rates by the parameters AmrNbMode0UseTag,
AmrNbMode1UseTag, AmrNbMode2UseTag, AmrNbMode3UseTag, AmrNbMode4UseTag,
AmrNbMode5UseTag, AmrNbMode6UseTag and AmrNbMode7UseTag. And ZTE RNC
configures AMR-WB rates by the parameters AmrWbMode0UseTag,
AmrWbMode1UseTag, AmrWbMode2UseTag, AmrWbMode3UseTag,
AmrWbMode4UseTag, AmrWbMode5UseTag, AmrWbMode6UseTag,
AmrWbMode7UseTag and AmrWbMode8UseTag. In Iuup Version2, ZTE RNC supports all
the AMR-NB and AMR-WB rates assigned by the CN. The AMR-NB and AMR-WB
dynamic rate adjustment based on single-link transmission power is controlled by the
configuration parameter AmrRncAdjust.
There are three types of AMR dynamic rate adjustment depending on the trigger
mechanisms:
AMR dynamic rate adjustment based on single-link transmission power
Due to inner-loop power control, uplink/downlink single-link transmission power varies
with the radio environment between the transmitting antennas of UE and NodeB.
When the radio environment degrades, the RNC should reduce the AMR to decrease
single-link transmission power to some degree. This serves to avoid heavy
uplink/downlink load of a cell resulting from increase in single-link transmission power
of AMR. When the single-link transmission power of AMR is low and the system load
is light, the RNC may increase the AMR to provide users with better voice quality by
making full use of system resources.
AMR rate adjustment triggered by the uplink/downlink overload of a cell
When a cell has uplink/downlink overload, the rate of uplink/downlink AMR service
should be reduced to decrease single-link transmission power, so as to lighten the
uplink/downlink load of the cell.
AMR rate adjustment triggered by the uplink/downlink resource congestion of a cell
Reduce the rate of uplink/downlink AMR service to lighten the uplink/downlink
resource congestion.
For these three trigger mechanisms, ZTE RNC can only adjust the rate of WB_AMR
services in the range of WB_AMR rates and can not adjust the rate of WB_AMR services
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to the rate of WB_AMR. ZTE RNC can also only adjust the rate of NB_AMR services in
the range of NB_AMR rates.
In terms of the currently implemented functions and AMR service running, ZTE considers it
unnecessary to control an uplink rate with the granularity as accurate as TTI. Therefore,
ZTE has not yet implemented SRB5-based uplink AMR-WB rate adjustment.
3.3.2 Dynamic AMR Adaptation Based on Single-Link Transmission Power
AMR-WB dynamic rate adjustment and AMR-NB dynamic rate adjustment both involve
uplink direction and downlink direction. They have the same principle and use the same
threshold. In view of this, they are unified as AMR dynamic rate adjustment and described
here.
3.3.2.1 Uplink Direction (Based on the UE Transmission power)
Uplink AMR dynamic rate adjustment is based on the transmission power reported by UE.
Its operating principles are as follows:
When the uplink transmission power reported by UE exceeds the threshold
AMR_6A1 (invariably configured as 90% of the maximum transmission power
(MaxUlDpchPwr) of uplink DPCH), the AMR should be reduced by one level if the
current uplink AMR is not the minimum rate. If UE does not report any measurement
result or the reported uplink transmission power exceeds the threshold AMR_6B1
(invariably configured as 80% of the maximum uplink transmission power of UE) after
AMR reduction, we can concluded that the current transmission power is still
relatively high. In this case, the AMR should be further reduced level by level until the
uplink AMR is reduced to the minimum rate or the uplink transmission power reported
by UE is lower than the threshold AMR_6B1. If the uplink transmission power
reported by UE is lower than the threshold AMR_6B1, the AMR reduction will be
terminated.
When the uplink transmission power reported by UE is lower than the threshold
AMR_6B2 (invariably configured as 60% of the maximum transmission power
MaxUlDpchPwr of uplink DPCH), the AMR should be increased by one level if the
current uplink AMR is not the maximum rate and the uplink load of the system is
neither overloaded nor congested. If UE does not report any measurement result or
the reported uplink transmission power is lower than the threshold AMR_6A2
(invariably configured as 70% of the maximum uplink transmission power of UE) after
AMR increase, we can concluded that the current transmission power is still
relatively low. If the current uplink AMR is not the maximum rate and the uplink load
of the system is neither overloaded nor congested, the AMR should be further
increased level by level until the uplink AMR is increased to the maximum rate or the
uplink transmission power reported by UE exceeds the threshold AMR_6A2. If uplink
overload or resource congestion occurs during the increase of the AMR, it is
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necessary to stop increasing the AMR. If the uplink transmission power reported by
UE exceeds the threshold AMR_6A2, the AMR increase will be terminated.
In order to avoid Ping-Pang AMR rate adjustment and the bad user experience due to
over frequent AMR rate adjustment, ZTE RNC restricts the two consective AMR rates
adjustment of the same direction by the parameter RevEvtDetectIme.
Figure 3-2 UE Transmission Power Measurement Event Report (Trigger Time is fixed to be
100ms)
Tx Power
Time
AMR_6A1
AMR_6A2
AMR_6B1
AMR_6B2
Report
6A
Report
6B
Report
6A
Report
6B
Trigger
TimeTrigger
Time
Trigger
Time
Trigger
Time
In the TrFO connection mode, the following judgments must be added on the basis of
the steps above:
If the target value of the AMR uplink rate increase originated from the local end is
smaller than or equal to the maximum uplink rate of the Iu port, it is allowed to
originate the rate increase, which then will be admitted by the admission control
module. If the target value of the rate increase originated from the local end is greater
than the maximum uplink rate of the Iu port, it is rejected to originate the rate
increase.
When the RNC receives the rate control command from the CN, the maximum rate is the
uplink target rate required by the CN. The admission control module determines the
maximum uplink rate allowed by the current local end according to the uplink load state of
the current cell and the single-link UE transmission power measurement report, and then
returns this rate in the rate control response command to the peer end. At the same time,
the RNC sends to the UE the TFC control command, requiring adjustment of the UE uplink
rate to a smaller one of the maximum uplink AMR available with the local end and the
maximum uplink AMR stated in the rate control command sent to the RNC from the CN.
3.3.2.2 Downlink Direction (Based on DTCP)
The downlink AMR adjustment is based on the special downlink transmission power
measurement report from Node B on the basic principles as follows:
When the special downlink transmission power reported by NodeB exceeds the
threshold AMR_E1 (invariably configured as 90% of the maximum downlink
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transmission power (MaxDlDpchPwr) of AMR service), the downlink AMR should be
reduced by one level if the current downlink AMR is not the minimum rate. If the
special downlink transmission power reported periodically (The period is invariably
configured as four seconds) by NodeB after the downlink AMR reduction still exceeds
the threshold AMR_E1, we can concluded that the current transmission power is still
relatively high. And the downlink AMR should be further reduced to the minimum rate,
or the special downlink transmission power reported by NodeB is reduced to a value
lower than AMR_E2 (invariably configured as 80% of the maximum transmission
power (MaxDlDpchPwr) of downlink DPCH of AMR-WB service). If the special
downlink transmission power reported by NodeB is reduced to a value lower than the
threshold AMR_E2, the AMR reduction should be stopped.
When the special downlink transmission power reported by NodeB is lower than the
threshold AMR_F1 (invariably configured as 60% of the maximum transmission power
(MaxDlDpchPwr) of downlink DPCH of AMR service), the downlink AMR should be
increased by one level if the current downlink AMR is not the maximum rate and the
downlink load of the system is neither overloaded nor congested. If the special
downlink transmission power reported periodically (The period is invariably configured
as four seconds) by NodeB after the rate increase is still ultra-lower than the
threshold AMR_F1, we can concluded that the current transmission power is still
relatively low. If the current downlink AMR is not the maximum rate and the downlink
load of the system is neither overloaded nor congested, the downlink AMR should be
further increased level by level until the downlink AMR rises to its maximum or the
special downlink transmission power reported by NodeB is higher than the threshold
AMR_F2 (invariably configured as 70% of the maximum downlink transmission power
(MaxDlDpchPwr) of AMR service). If downlink overload or resource congestion occurs
during increase of the AMR rate, it is necessary to stop increasing the AMR rate. If
the special downlink transmission power reported by NodeB has exceeded the
threshold AMR_F2, the downlink AMR increase should be stopped.
In order to avoid Ping-Pang AMR rate adjustment and the bad user experience due to
over frequent AMR rate adjustment, ZTE RNC restricts the two consective AMR rates
adjustment of the same direction by the parameter RevEvtDetectIme.
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Figure 3-3 NodeB DTCP Measurement Event Report (Hysteresis Time is fixed to be
100ms)
DTCP
Time
AMR_E1
AMR_F2
AMR_E2
AMR_F1
Report
AReport
B
Report
B
Report
A
Hysteresis
TimeHysteresis
Time
Hysteresis
Time
Hysteresis
Time
Periodic
Report
Periodic
Report
In the TrFO connection mode, the downlink rate depends on the downlink rate of the
Iu port; In a Mobile to Mobile call, the downlink rate depends on the uplink rate of the
peer end. Therefore, the downlink AMR-WB rate adjustment algorithm has the
following changes in comparison with the TrFO connection mode:
When the local end needs to adjust the downlink AMR, the RNC sends the adjusted
target rate through the rate control command to the CN, which then sends this rate
through the rate control command to the peer-end RNC. The returned rate control
response command contains the maximum uplink rate available with the peer end.
The peer end UE sends data at the smaller rate between the maximum uplink rate
supported by the peer end and the target rate required by the local end, so as to
complete downlink rate adjustment for the local end.
When the uplink rate of the peer end is decreased, the downlink rate of the local end
will be decreased accordingly.
When the uplink rate of the peer end is increased, the downlink rate of the local end will be
increased accordingly, resulting in change of the cell downlink load and the single-link
downlink D-TCP. The RNC should determine whether to decrease the increasing downlink
rate according to the cell downlink load and the single-link downlink D-TCP measurement
report. If the downlink rate should be decreased, the RNC sends to the CN the rate control
command that contains the maximum rate supported by the local end, so as to control the
downlink rate of the Iu port.
3.3.3 Dynamic Adjustment Triggered by Resource Congestion
In case of uplink/downlink resource congestion, the RNC should decrease the rate of some
AMR services by priority. When the uplink/downlink resource congestion is cleared, the
RNC should increase step by step the rate of any decreased AMR service that meets the
rate increase conditions described above. This dynamic adjustment also applies to WB-
AMR. For details, please refer to ZTE UMTS Congestion Control Feature Guide.
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3.3.4 Dynamic Adjustment Triggered by Load
In case of uplink/downlink overload on a cell, the RNC should decrease the rate of some
AMR services by priority. When the uplink/downlink overload is cleared, the RNC should
increase step by step the rate of any decreased AMR service that meets the rate increase
conditions described above. This dynamic adjustment also applies to WB-AMR. For
details, please refer to ZTE UTMS Overload Control Feature Guide.
3.4 TrFO Support
At the R99 stage, voice at the CN CS employs 64kbit/s PCM encoding based on TDM
bearer. Therefore, the R99 MSC must have the voice TC function. But voice
encoding/decoding is apt to reduce voice quality. The calls between mobile users , in
particular, need dual voice encoding/decoding. If a codec is not used, voice quality will be
improved with network bandwidth saved.
At the R4 stage, voice encoding/decoding times can be reduced by establishing a TrFO
connection. The TrFO connection can be established throughout end-to-end process or
between some node of a call connection. For example, for a call between UMTS UE and a
fixed telephone, the TrFO connection only exists between UMTS UE and a core network.
The core network and RNC in the TrFO connection must support the IuUP V2. Otherwise,
no TrFO connection can be established. ZTE supports the IuUP V1 and IuUP V2. The RNC
will make a choice according to CN RAB assignment parameters.
The TrFO is implemented by employing the outband signaling encoding/decoding control
function (OoBTC). It is applicable to the calls between mobile networks and those between
a mobile network and an external network. When the same voice encoding/decoding type
is used between both call parties or between one call party and a node in the call
connection, the TrFO can transparently transmit compressed voice, which improves voice
quality and saves transmission bandwidth.
The node on both sides with a TrFO connection successfully established between them
will use completely the same common compressed voice encoding type negotiated at the
OoBTC stage. A codec must be inserted between a TrFO connection and a non-TrFO
connection to convert one encoding type into another. The implementation strategy of the
core network will, to the greatest extent, ensure that the insertion position can meet the
following requirements:
The insertion position should reduce the use of a transcoder and improve voice quality;
The insertion position should save transmission bandwidth, that is, it should prolong
the connection which uses compressed voice encoding data for transmission.
ZTE RNC controls the IuUP version between CN and RNC in the RAB assignment
procedure by the parameter IntraRatUpVer if CN support both IuUP Version1 and Version2.
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And ZTE RNC controls the IuUP version between CN and RNC in 2G to 3G relocation
procedure by the parameter InterRatUpVer if CN support both IuUP Version1 and Version2.
For a UTRAN, its IuUP initialization, reverse initialization, IuUP rate control, and IuUP
reverse rate control are related to the TrFO process.
3.4.1 OoBTC Outband Codec Control
When a call is initiated, both call parties will negotiate about the codec so as to attempt to
establish a TrFO operation. In an IAM, the O-MSC carries the supported codec type list
and sends it to a transmission network. From the list, the transmission network deletes
the types that are not supported and sends it to a T-MSC. From the list, the T-MSC also
deletes the encoding types that are not supported. Then, the T-MSC selects an optimal
common encoding/decoding type, returns it to the transmission network and the O-MSC,
and notifies them of the currently selected encoding/decoding type. Meantime, the T-MSC
feeds back the encoding/decoding type that the Terminating UE supports to the O-MSC,
and begins to establish bearer on the basis of this codec. This flow is shown in Figure 3-4.
Figure 3-4 Flow of OoBTC Outband Codec Control
Codec List (v, w, x, y, z)
Codec List (v, w, x, z)
O-MSC Transit T-MSC
O-MGW T-MGWTransit
MGW
Selected Codec = v, Available List (v, x, z, )
Selected Codec = v
Selected Codec = v
Selected Codec = v, Available
List (v, x, z, )
Selected Codec = v
Bearer Established Bearer Established
The encoding type that the UE supports is transparently transmitted to the RNC by means
of Uplink Direct Transfer-> NAS Message-> Bearer Capacity. Then, the RNC transparently
transmits the encoding type to the MSC Server by means of Direct Transfer -> NAS
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Indicator ->Bearer Capacity. During RAB assignment, the encoding/decoding type lists of
the calling and called parties are completely the same.
3.4.2 IuUP Initialization
IuUP initialization serves to define the mapping relationship (used at the data transmission
stage) between the RNC and CN on both sides of IuUP, including RAB sub-flow
combination, RFCIs, and SDU size of related RAB sub-flow.
If a bearer is successfully established, the CN will deliver an RAB assignment request
message to the RNC. The RNC in R4 version must support all the SDU sub-flow
combinations in the RAB assignment request message. That is, the content in the
initialization frame is a universal set of sub-flow combinations determined by RAB
assignment. Thus, the initialization frame will only be used to negotiate about IuUP version
information and RFCI correspondence (each RFCI corresponds to a sub-flow combination).
In the R99 version, this initialization process can only be initiated when the RNC receives
RAB assignment/modification or RNC relocation. In the R4 version, the CN can also start
this initialization process, called IuUP reverse initialization. IuUP initialization is shown in
Figure 3-5.
Figure 3-5 IuUP Initialization
*
Transfer Of User Data
CN/ RNC
INITIALISATION
((RFCI, SDU sizes[, IPTIs 2) ]) m )
INITIALISATION ACK
* can be repeated N INIT times 2) optional
RNC/ CN
In the RFCI set determined during IuUP initialization, the rate which corresponds to the
first RAB sub-flow combination is the maximum rate in the initialization answer direction
permitted by the local end when data transmission begins. The maximum rate must be
greater than the guaranteed rate and SID rate. It can be modified during IuUP rate control
after IuUP initialization. The rate greater than the guaranteed rate is called a controllable
rate. The rate lower than the guaranteed rate cannot be modified.
3.4.3 IuUP Rate Control
IuUP rate control serves to notify the peer IuUP protocol layer of the maximum rate at the
Iu port in the reverse direction of the rate control frame. In the R4 version, IuUP rate control
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can be initiated by the RNC or the CN. In the R99 version, IuUP rate control can only be
initiated by the RNC.
As long as an IuUP entity is not suspended by other control flows, it can initiate rate
control. The controlled rates are all included in the RFC set determined during IuUP
initialization. These rates that correspond to the RFC should be higher than the guaranteed
rate. "Rate control" cannot be implemented in terms of the SID rate and the RFC lower
than the guaranteed rate because they themselves cannot be prohibited.
Figure 3-6 Flow of IuUP Rate Control
CN/ RNC
RNC/ CN
RATE CONTROL
(RFCI indicators)
RATE CONTROL ACK
(RFCI indicators)
Note: The rate control frame describes the use limit of an "RFC set", which is called "RFC
limit set" in the following parts.
In downlink direction, the RNC triggers the rate control frame, records the "RFC limit set"
(downlink direction), and monitors the implementation behavior of the CN. If the CN still
sends the data frame of the limited RFCI, the rate control frame must be resent. In uplink
direction, the IuUP module of the RNC receives the rate control frame and implements the
limit by means of TFC control.
The rate control initiated by the CN is as follows: After receiving a rate control message
from the RNC, the CN initiates rate control to the other party of a call to limit or open the
other party's uplink AMR level. Or the CN initiates a rate adjustment flow on its own
according to TrFO. For example, in SRNS relocation, the CN first performs reverse
initialization after a new RNC sends relocation detection to the CN. Then, the new RNC
initiates a process called immediate initialization. This serves to negotiate about the
maximum rate for data transmission between two IuUP entities which support TrFO.
The rate control initiated by the RNC is as follows: During dynamic AMR process, the RNC
adjusts the downlink AMR level according the downlink load of a cell or the dedicated TCP
measurement of an RL, and initiates rate control.
Compared with the encoding/decoding type negotiation before initialization, the IuUP rate
control is in-band rate control.
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4 Parameters and Configuration
4.1 Parameter List of AMR Dynamic Rate
Adjustment
Table 4-1 Parameter List
Id Abbreviated Parameter name
1 AmrRncAdjust AMR Rate Adjustment Switch for RNC
2 MaxUlDpchPwr Maximum Allowed Uplink DPCH Transmission Power
3 MaxDlDpchPwr DPCH Maximum DL Power
4 AmrNbMode0UseTag AMR_NB 4.75k Use Tag
5 AmrNbMode1UseTag AMR_NB 5.15k Use Tag
6 AmrNbMode2UseTag AMR_NB 5.90k Use Tag
7 AmrNbMode3UseTag AMR_NB 6.70k Use Tag
8 AmrNbMode4UseTag AMR_NB 7.40k Use Tag
9 AmrNbMode5UseTag AMR_NB 7.95k Use Tag
10 AmrNbMode6UseTag AMR_NB 10.2k Use Tag
11 AmrNbMode7UseTag AMR_NB 12.2k Use Tag
12 AmrWbMode0UseTag AMR_WB 6.60k Use Tag
13 AmrWbMode1UseTag AMR_WB 8.85k Use Tag
14 AmrWbMode2UseTag AMR_WB 12.65k Use Tag
15 AmrWbMode3UseTag AMR_WB 14.25k Use Tag
16 AmrWbMode4UseTag AMR_WB 15.85k Use Tag
17 AmrWbMode5UseTag AMR_WB 18.25k Use Tag
18 AmrWbMode6UseTag AMR_WB 19.85k Use Tag
19 AmrWbMode7UseTag AMR_WB 23.05k Use Tag
20 AmrWbMode8UseTag AMR_WB 23.85k Use Tag
21 RevEvtDetectIme
Time Interval for Consecutive AMR Adjustment of
Same Direction
22 WAMRSUPIND WB-AMR Speech Support Indicator
23 INTERRATUPVER Inter-RAT IuUP Version
24 INTRARATUPVER Intra-RAT IuUP Version
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4.1.1 Configuration of AMR Dynamic Rate Adjustment Parameters
4.1.1.1 AmrRncAdjust
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Basic Information-> AMR Rate Adjustment Switch for RNC
Parameter Configuration
When the value of this parameter is "Closed", AMR dynamic rate adjustment will not
be triggered due to UE internal measurement and NodeB special measurement; when
the value of this parameter is "Open", AMR dynamic rate adjustment will be triggered
due to the above-mentioned measurement. When this parameter is closed, AMR
voice quality remains unchanged in any case; when this parameter is opened, AMR
voice quality may slightly degrade according to different scenarios, but system
capacity can be increased accordingly.
4.1.1.2 MaxUlDpchPwr
OMC Path
View -> Configuration Management -> Rnc Radio Resource Management-> Advanced
Parameter Manager -> Power Control Related to Service and Diversity Mode ->
Maximum Allowed Uplink DPCH Transmission Power(dBm)
Parameter Configuration
Background configuration value. The greater this value is, the higher the maximum
permissible uplink transmission power.
4.1.1.3 MaxDlDpchPwr
OMC Path
View -> Configuration Management ->Rnc Radio Resource Management-> Advanced
Parameter Manager ->Power Control Related to Service and Diversity Mode-> DPCH
Maximum DL Power
Parameter Configuration
It represents the maximum permissible downlink DPCH transmission power. It is
related to service sub-class.
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4.1.1.4 AmrNbMode0UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_NB
4.75k Use Tag
Parameter Configuration
AMR_NB 4.75k using label 0: not using
1: using
4.1.1.5 AmrNbMode1UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_NB
5.15k Use Tag
Parameter Configuration
AMR_NB 5.15k using label 0: not using
1: using
4.1.1.6 AmrNbMode2UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_NB
5.90k Use Tag
Parameter Configuration
AMR_NB 5.90k using label 0: not using
1: using
4.1.1.7 AmrNbMode3UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_NB
6.70k Use Tag
Parameter Configuration
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AMR_NB 6.70k using label 0: not using
1: using
4.1.1.8 AmrNbMode4UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_NB
7.40k Use Tag
Parameter Configuration
AMR_NB 7.40k using label 0: not using
1: using
4.1.1.9 AmrNbMode5UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_NB
7.95k Use Tag
Parameter Configuration
AMR_NB 7.95k using label 0: not using
1: using
4.1.1.10 AmrNbMode6UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_NB
10.2k Use Tag
Parameter Configuration
AMR_NB 10.2k using label 0: not using
1: using
4.1.1.11 AmrNbMode7UseTag
OMC Path
AMR-NB & AMR-WB Feature Guide
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View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_NB
12.2k Use Tag
Parameter Configuration
AMR_NB 12.2k using label 0: not using
1: using
4.1.1.12 AmrWbMode0UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
6.60k Use Tag
Parameter Configuration
AMR_WB 6.60k using label 0: not using
1: using
4.1.1.13 AmrWbMode1UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
8.85k Use Tag
Parameter Configuration
AMR_WB 8.85k using label 0: not using
1: using
4.1.1.14 AmrWbMode2UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
12.65k Use Tag
Parameter Configuration
AMR_WB 12.65k using label 0: not using
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1: using
4.1.1.15 AmrWbMode3UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
14.25k Use Tag
Parameter Configuration
AMR_WB 14.25k using label 0:not using
1: using
4.1.1.16 AmrWbMode4UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
15.85k Use Tag
Parameter Configuration
AMR_WB 15.85k using label 0: not using
1: using
4.1.1.17 AmrWbMode5UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
18.25k Use Tag
Parameter Configuration
AMR_WB 18.25k using label 0: not using
1: using
4.1.1.18 AmrWbMode6UseTag
OMC Path
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View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
19.85k Use Tag
Parameter Configuration
AMR_WB 19.85k using label 0: not using
1: using
4.1.1.19 AmrWbMode7UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
23.05k Use Tag
Parameter Configuration
AMR_WB 23.05k using label 0: not using
1: using
4.1.1.20 AmrWbMode8UseTag
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> AMR_WB
23.85k Use Tag
Parameter Configuration
AMR_WB 23.85k using label 0: not using
1: using
4.1.1.21 RevEvtDetectIme
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Radio Resource Management -> Time
Interval for Consecutive AMR Adjustment of Same Direction
Parameter Configuration
It is used to set the time interval of two consecutive rate of AMR in the same direction.
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4.1.1.22 WAMRSUPIND
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> RNC Configuration Supplement Parameters-> WB-AMR Speech Support Indicator
Parameter Configuration
This parameter indicates whether support for WB-AMR voice services.
1.1.1.1 INTERRATUPVER
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Configuration Supplement Information -
>Inter-RAT IuUP Version
Parameter Configuration
Specifies the intra-RAT IuUP Version.
1.1.1.2 INTRARATUPVER
OMC Path
View -> Configuration Management -> RNC NE -> RNC Radio Resource Management
-> Advanced Parameter Manager -> RNC Configuration Supplement Information -
>Intra-RAT IuUP Version
Parameter Configuration
Specifies the intra-RAT IuUP Version.
5 Counter and Alarm
5.1 Counter List Counter No. Description
C310030466 Number of CS AMR 12.2k in the best cell
C310030467 Number of CS AMR 10.2k in the best cell
C310030468 Number of CS AMR 7.95k in the best cell
C310030469 Number of CS AMR 7.4k in the best cell
C310030470 Number of CS AMR 6.7k in the best cell
C310030471 Number of CS AMR 5.9k in the best cell
C310030472 Number of CS AMR 5.15k in the best cell
C310030473 Number of CS AMR 4.75k in the best cell
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C310030474 Number of CS WB AMR 23.85k in the best cell
C310030475 Number of CS WB AMR 23.05k in the best cell
C310030476 Number of CS WB AMR 19.85k in the best cell
C310030477 Number of CS WB AMR 18.25k in the best cell
C310030478 Number of CS WB AMR 15.85k in the best cell
C310030479 Number of CS WB AMR 14.25k in the best cell
C310030480 Number of CS WB AMR 12.65k in the best cell
C310030481 Number of CS WB AMR 8.85k in the best cell
C310030482 Number of CS WB AMR 6.60k in the best cell
C310030638 Number of CS AMR 12.2k in the non-best cell
C310030639 Number of CS AMR 10.2k in the non-best cell
C310030640 Number of CS AMR 7.95k in the non-best cell
C310030641 Number of CS AMR 7.4k in the non-best cell
C310030642 Number of CS AMR 6.7k in the non-best cell
C310030643 Number of CS AMR 5.9k in the non-best cell
C310030644 Number of CS AMR 5.15k in the non-best cell
C310030645 Number of CS AMR 4.75k in the non-best cell
C310030646 Number of CS WB AMR 23.85k in the non-best cell
C310030647 Number of CS WB AMR 23.05k in the non-best cell
C310030648 Number of CS WB AMR 19.85k in the non-best cell
C310030649 Number of CS WB AMR 18.25k in the non-best cell
C310030650 Number of CS WB AMR 15.85k in the non-best cell
C310030651 Number of CS WB AMR 14.25k in the non-best cell
C310030652 Number of CS WB AMR 12.65k in the non-best cell
C310030653 Number of CS WB AMR 8.85k in the non-best cell
C310030654 Number of CS WB AMR 6.60k in the non-best cell
C310063411 Number of CS AMR 12.2k in the DRNC cell
C310063412 Number of CS AMR 10.2k in the DRNC cell
C310063413 Number of CS AMR 7.95k in the DRNC cell
C310063414 Number of CS AMR 7.4k in the DRNC cell
C310063415 Number of CS AMR 6.7k in the DRNC cell
C310063416 Number of CS AMR 5.9k in the DRNC cell
C310063417 Number of CS AMR 5.15k in the DRNC cell
C310063418 Number of CS AMR 4.75k in the DRNC cell
C310063419 Number of CS WB AMR 23.85k in the DRNC cell
C310063420 Number of CS WB AMR 23.05k in the DRNC cell
C310063421 Number of CS WB AMR 19.85k in the DRNC cell
AMR-NB & AMR-WB Feature Guide
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C310063422 Number of CS WB AMR 18.25k in the DRNC cell
C310063423 Number of CS WB AMR 15.85k in the DRNC cell
C310063424 Number of CS WB AMR 14.25k in the DRNC cell
C310063425 Number of CS WB AMR 12.65k in the DRNC cell
C310063426 Number of CS WB AMR 8.85k in the DRNC cell
C310063427 Number of CS WB AMR 6.60k in the DRNC cell
C310040001 Holding time for the best cell,AMR12.2
C310040002 Holding time for the best cell,AMR10.2
C310040003 Holding time for the best cell,AMR7.95
C310040004 Holding time for the best cell,AMR7.4
C310040005 Holding time for the best cell,AMR6.7
C310040006 Holding time for the best cell,AMR5.9
C310040007 Holding time for the best cell,AMR5.15
C310040008 Holding time for the best cell,AMR4.75
C310040009 Holding time for the best cell,WB-AMR23.85
C310040010 Holding time for the best cell,WB-AMR23.05
C310040011 Holding time for the best cell,WB-AMR19.85
C310040012 Holding time for the best cell,WB-AMR18.25
C310040013 Holding time for the best cell,WB-AMR15.85
C310040014 Holding time for the best cell,WB-AMR14.25
C310040015 Holding time for the best cell,WB-AMR12.65
C310040016 Holding time for the best cell,WB-AMR8.85
C310040017 Holding time for the best cell,WB-AMR6.60
C310040075 Holding time for the non-best cell,AMR12.2
C310040076 Holding time for the non-best cell,AMR10.2
C310040077 Holding time for the non-best cell,AMR7.95
C310040078 Holding time for the non-best cell,AMR7.4
C310040079 Holding time for the non-best cell,AMR6.7
C310040080 Holding time for the non-best cell,AMR5.9
C310040081 Holding time for the non-best cell,AMR5.15
C310040082 Holding time for the non-best cell,AMR4.75
C310040083 Holding time for the non-best cell,WB-AMR23.85
C310040084 Holding time for the non-best cell,WB-AMR23.05
C310040085 Holding time for the non-best cell,WB-AMR19.85
C310040086 Holding time for the non-best cell,WB-AMR18.25
C310040087 Holding time for the non-best cell,WB-AMR15.85
C310040088 Holding time for the non-best cell,WB-AMR14.25
AMR-NB & AMR-WB Feature Guide
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 29
C310040089 Holding time for the non-best cell,WB-AMR12.65
C310040090 Holding time for the non-best cell,WB-AMR8.85
C310040091 Holding time for the non-best cell,WB-AMR6.60
C310073296 Holding time for the DRNC cell,AMR12.2
C310073297 Holding time for the DRNC cell,AMR10.2
C310073298 Holding time for the DRNC cell,AMR7.95
C310073299 Holding time for the DRNC cell,AMR7.4
C310073300 Holding time for the DRNC cell,AMR6.7
C310073301 Holding time for the DRNC cell,AMR5.9
C310073302 Holding time for the DRNC cell,AMR5.15
C310073303 Holding time for the DRNC cell,AMR4.75
C310073304 Holding time for the DRNC cell,WB-AMR23.85
C310073305 Holding time for the DRNC cell,WB-AMR23.05
C310073306 Holding time for the DRNC cell,WB-AMR19.85
C310073307 Holding time for the DRNC cell,WB-AMR18.25
C310073308 Holding time for the DRNC cell,WB-AMR15.85
C310073309 Holding time for the DRNC cell,WB-AMR14.25
C310073310 Holding time for the DRNC cell,WB-AMR12.65
C310073311 Holding time for the DRNC cell,WB-AMR8.85
C310073312 Holding time for the DRNC cell,WB-AMR6.60
C310073296 Holding time for the DRNC cell,AMR12.2
C310073297 Holding time for the DRNC cell,AMR10.2
C310073298 Holding time for the DRNC cell,AMR7.95
C310073299 Holding time for the DRNC cell,AMR7.4
C310073300 Holding time for the DRNC cell,AMR6.7
C310073301 Holding time for the DRNC cell,AMR5.9
C310073302 Holding time for the DRNC cell,AMR5.15
C310073303 Holding time for the DRNC cell,AMR4.75
C310073304 Holding time for the DRNC cell,WB-AMR23.85
C310073305 Holding time for the DRNC cell,WB-AMR23.05
C310073306 Holding time for the DRNC cell,WB-AMR19.85
C310073307 Holding time for the DRNC cell,WB-AMR18.25
C310073308 Holding time for the DRNC cell,WB-AMR15.85
C310073309 Holding time for the DRNC cell,WB-AMR14.25
C310073310 Holding time for the DRNC cell,WB-AMR12.65
C310073311 Holding time for the DRNC cell,WB-AMR8.85
C310073312 Holding time for the DRNC cell,WB-AMR6.60
AMR-NB & AMR-WB Feature Guide
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 30
5.2 Alarm List
No related alarm list.
6 Glossary
A
AMR Adaptive Multi-Rate
AMRC Adaptive Multi-Rate Control
AMR-NB Adaptive Multi-Rate Narrow-Band
AMR-WB Adaptive Multi-Rate Wide-Band
C
CN Core Network
D
D-TCP Dedicated Transmitting Carrier Power
I
IAM Initial Address Message
IuUP Iu User Plane
M
MSC Mobile Switch Center
N
NAS Non-Access-Stratum
O
OoBTC Out-of-Band Transcoder Control
P
PCM Pulse Code Modulation
PSTN Public Switched Telephone Network
AMR-NB & AMR-WB Feature Guide
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 31
Q
QoS Quality of Service
O-MSC Originating Mobile Switch Center
R
RAB Radio Access Bearer
RFC RAB sub-Flow Combination
RFCI RAB sub-Flow Combination Indicator
RL Radio Link
RX Receive
RNC Radio Network Controller
S
SCR Source Controlled Rate
SDU Service Data Unit
SID Silence Information Description
SRNC Serving RNC
T
TC Transcoder
TCP Transmitting Carrier Power
TFC Transport Format Combination
TFO Tandem Free Operation
T-MSC Terminating Mobile Switch Center
TrFO Transcoder Free Operation
TX Transmit
U
UMTS Universal Mobile Telecommunications System