3GPP TS 23.107 V3.5.0 (2000-12)
`
`Technical Specification
`
`
`
`3rd Generation Partnership Project;
`Technical Specification Group Services and System Aspects;
`QoS Concept and Architecture
`(Release 1999)
`
`
`
`
`
`
`
`The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP.
`The present document has not been subject to any approval process by the 3GPP Organisational Partners and shall not be implemented.
`This Specification is provided for future development work within 3GPP only. The Organisational Partners accept no liability for any use of this Specification.
`Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organisational Partners' Publications Offices.
`
`1
`
`

`

`
`Release 1999
`
`2
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`
`
`
`
`
`
`
`
`Keywords
`UMTS, architecture, quality
`
`3GPP
`
`Postal address
`
`
`3GPP support office address
`650 Route des Lucioles - Sophia Antipolis
`Valbonne - FRANCE
`Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
`
`Internet
`http://www.3gpp.org
`
`Copyright Notification
`
`No part may be reproduced except as authorized by written permission.
`The copyright and the foregoing restriction extend to reproduction in all media.
`
`© 2000, 3GPP Organizational Partners (ARIB, CWTS, ETSI, T1, TTA, TTC).
`All rights reserved.
`
`
`3GPP
`
`

`

`
`Release 1999
`
`3
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`Contents
`Foreword............................................................................................................................................................. 5
`1
`Scope ........................................................................................................................................................ 6
`2
`References ................................................................................................................................................ 6
`3
`Abbreviations ........................................................................................................................................... 6
`4
`High Level Requirements ......................................................................................................................... 7
`4.1
`End User QoS Requirements .......................................................................................................................................... 7
`4.2 General Requirements for QoS ...................................................................................................................................... 8
`4.3
`Technical Requirements for QoS ................................................................................................................................... 8
`5
`CS QoS in release '99 ............................................................................................................................... 8
`6
`QoS Architecture ...................................................................................................................................... 9
`6.1 Overview of Different Levels of QoS ............................................................................................................................ 9
`6.1.1
`The End-to-End Service and UMTS Bearer Service ............................................................................................ 10
`6.1.2
`The Radio Access Bearer Service and the Core Network Bearer Service........................................................... 10
`6.1.3
`The Radio Bearer Service and the Iu Bearer Service ............................................................................................ 10
`6.1.4
`The Backbone Network Service ............................................................................................................................. 11
`6.2 QoS Management Functions in the Network .............................................................................................................. 11
`6.2.1
`Description of functions .......................................................................................................................................... 11
`6.2.1.1 QoS management functions for UMTS bearer service in the control plane ........................................................ 11
`6.2.1.2
`Functions for UMTS bearer service in the user plane .......................................................................................... 11
`6.2.2
`Allocation of QoS management functions ............................................................................................................. 12
`6.2.2.1 QoS management functions for UMTS bearer service in the control plane ........................................................ 12
`6.2.2.2 QoS management functions for the UMTS bearer service in the user plane ...................................................... 13
`6.3 UMTS QoS Classes ....................................................................................................................................................... 13
`6.3.1
`Conversational class ................................................................................................................................................ 14
`6.3.2
`Streaming class ........................................................................................................................................................ 14
`6.3.3
`Interactive class ....................................................................................................................................................... 15
`6.3.4
`Background class ..................................................................................................................................................... 15
`6.4 QoS Parameters ............................................................................................................................................................. 15
`6.4.1
`Asymmetric Bearers ................................................................................................................................................ 15
`6.4.2
`Sources of UMTS Bearer Service Parameters ....................................................................................................... 16
`6.4.3
`UMTS Bearer Service Attributes ........................................................................................................................... 16
`6.4.3.1 List of attributes ....................................................................................................................................................... 16
`6.4.3.2 Attributes discussed per class ................................................................................................................................. 18
`6.4.3.3 UMTS bearer attributes: summary ......................................................................................................................... 19
`6.4.4
`Radio Access Bearer Service Attributes ................................................................................................................ 20
`6.4.4.1 List of attributes ....................................................................................................................................................... 20
`6.4.4.2 Attributes discussed per class ................................................................................................................................. 22
`6.4.4.3 Radio Access Bearer attributes: summary ............................................................................................................. 23
`6.4.5
`Radio Bearer Service Parameters ........................................................................................................................... 23
`6.4.6
`Iu Bearer Service Parameters ................................................................................................................................. 24
`6.4.7
`Core Network Bearer Service Parameters ............................................................................................................. 24
`6.5
`Parameter Value Ranges ............................................................................................................................................... 24
`6.5.1
`Ranges of UMTS Bearer Service Attributes ......................................................................................................... 24
`6.5.2
`Ranges of Radio Access Bearer Service Attributes .............................................................................................. 25
`7
`Support of QoS Requirement During Inter-SGSN RA Update .............................................................. 26
`8
`QoS Parameter Mapping ........................................................................................................................ 26
`8.1
`From Application Parameters to UMTS Bearer Service Parameters ......................................................................... 26
`8.2
`From UMTS Bearer Service Parameters to Radio Access Bearer Service Parameters ............................................ 26
`8.3
`From UMTS Bearer Service Parameters to CN Bearer Service Parameters ............................................................. 27
`9
`Interworking ........................................................................................................................................... 27
`9.1 UMTS-GSM CS/GPRS ................................................................................................................................................ 27
`
`3GPP
`
`

`

`
`Release 1999
`
`4
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`UMTS-GSM CS ...................................................................................................................................................... 27
`9.1.1
`9.1.1.1 Handover from UMTS to GSM .............................................................................................................................. 27
`9.1.1.2 Handover from GSM to UMTS .............................................................................................................................. 28
`9.1.2
`UMTS-GPRS ........................................................................................................................................................... 28
`9.1.2.1 General rules ............................................................................................................................................................ 28
`9.1.2.2 Determining R99 attributes from R97/98 attributes .............................................................................................. 29
`9.1.2.3 Determining R97/98 attributes from R99 attributes .............................................................................................. 29
`9.2 UMTS-PSTN ................................................................................................................................................................. 30
`9.3 UMTS-ISDN ................................................................................................................................................................. 30
`9.4 UMTS-Internet .............................................................................................................................................................. 30
`Annex A (informative): Error resilience in real-time packet multimedia payloads ................................. 32
`A.1
`Introduction ............................................................................................................................................ 32
`A.1.1
`Factors affecting error resilience ............................................................................................................................ 32
`A.2 Example figures...................................................................................................................................... 33
`Annex B (normative): Reference Algorithm for Conformance Definition of Bitrate .............................. 34
`Annex C (normative): Determine which QoS profile is of highest QoS .................................................... 35
`Annex D (informative): Change history ....................................................................................................... 36
`
`
`3GPP
`
`

`

`
`Release 1999
`
`5
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`Foreword
`This Technical Specification (TS) has been produced by the 3rd Generation Partnership Project (3GPP).
`
`The present document identifies the Quality of Service (QoS) aspects for the 3GPP system.
`
`The contents of the present document are subject to continuing work within the TSG and may change following formal
`TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
`identifying change of release date and an increase in version number as follows:
`
`Version x.y.z
`
`where:
`
`x
`
`the first digit:
`
`1 presented to TSG for information;
`
`2 presented to TSG for approval;
`
`3 or greater indicates TSG approved document under change control.
`
`y
`
`the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
`updates, etc.
`
`z
`
`the third digit is incremented when editorial only changes have been incorporated in the document.
`
`3GPP
`
`

`

`
`Release 1999
`
`6
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`Scope
`1
`The present document provides the framework for Quality of Service within UMTS. The main purpose is to specify the
`list of attributes applicable to UMTS Bearer Service and Radio Access Bearer Service, as well as describe the Quality
`of Service architecture to be used in UMTS networks.
`
`References
`2
`The following documents contain provisions which, through reference in this text, constitute provisions of the present
`document.
`
`• References are either specific (identified by date of publication, edition number, version number, etc.) or
`non-specific.
`
`• For a specific reference, subsequent revisions do not apply.
`
`• For a non-specific reference, the latest version applies.
`
`[1]
`
`[2]
`
`[3]
`
`[4]
`
`[5]
`
`3GPP TS 23.110: "UMTS Access Stratum - Services and Functions".
`
`3GPP TS 22.100: "Service aspects, Service principles".
`
`3GPP TS 23.121: "Evolution of the GSM platform towards UMTS".
`
`(Void)
`
`3GPP TS 22.105: "Services & Service capabilities".
`
`Abbreviations
`3
`For the purpose of the present document, the following abbreviations apply:
`
`3G
`AMR
`ATM
`BER
`BS
`CC
`CN
`CRC
`CS
`DTX
`FDD
`FER
`FTP
`GPRS
`GSM
`IETF
`IP
`ISDN
`MO
`MPEG
`MT
`MTC
`NS
`PDP
`PDU
`PS
`
`3rd Generation
`Adaptive Multirate speech codec
`Asynchronous Transfer Mode
`Bit Error Rate
`Bearer Service
`Call Control
`Core Network
`Cyclic Redundancy Check
`Circuit Switched
`Discontinuous Transmission
`Frequency Division Duplex
`Frame Erasure Ratio
`File Transfer Protocol
`General Packet Radio Service
`Global System for Mobile Communication
`Internet Engineering Task Force
`Internet Protocol
`Integrated Services Digital Network
`Mobile Originating Call
`Moving Pictures Expert Group
`Mobile Terminal
`Mobile Terminated Call
`Network Service
`Packet Data Protocol
`Protocol Data Unit
`Packet Switched
`
`3GPP
`
`

`

`
`Release 1999
`
`7
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`PSTN
`QoS
`RA
`RAB
`RAN
`RLC
`RSVP
`RT
`RTP
`SAP
`SDU
`SGSN
`SLA
`SMS
`SVC
`UDP
`TBC
`TDD
`TE
`TSPEC
`UE
`UMTS
`UTRA
`UTRAN
`
`Public Switched Telephone Network
`Quality of Service
`Routing Area
`Radio Access Bearer
`Radio Access Network
`Radio Link Control
`Resource Reservation Protocol
`Real Time
`Real Time Transport Protocol
`Service Access Point
`Service Data Unit
`Serving GPRS Support Node
`Service Level Agreement
`Short Message Service
`Switched Virtual Circuit
`User Datagram Protocol
`Token Bucket Counter
`Time Division Duplex
`Terminal Equipment
`Traffic Specification
`User Equipment
`Universal Mobile Telecommunication System
`UMTS Terrestrial Radio Access
`UMTS Terrestrial Radio Access Network
`
`4
`
`High Level Requirements
`
`End User QoS Requirements
`4.1
`Generally, end users care only the issues that are visible to them. The involvement of the user leads to the following
`conclusions. From the end-user point of view:
`
`- only the QoS perceived by end-user matter;
`
`-
`
`the number of user defined/controlled attributes has to be as small as possible;
`
`- derivation/definition of QoS attributes from the application requirements has to be simple;
`
`- QoS attributes shall be able to support all applications that are used, a certain number of applications have the
`characteristic of asymmetric nature between two directions, uplink/downlink;
`
`- QoS definitions have to be future proof;
`
`- QoS has to be provided end-to-end.
`
`3GPP
`
`

`

`
`Release 1999
`
`8
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`General Requirements for QoS
`4.2
`- QoS attributes (or mapping of them) should not be restricted to one or few external QoS control mechanisms but
`the QoS concept should be capable of providing different levels of QoS by using UMTS specific control
`mechanisms (not related to QoS mechanisms in the external networks).
`
`- All attributes have to have unambiguous meaning.
`
`- QoS mechanism have to allow efficient use of radio capacity.
`
`- Allow independent evolution of Core and Access networks.
`
`- Allow evolution of UMTS network, (i.e., eliminate or minimise the impact of evolution of transport technologies
`in the wireline world).
`
`- All attribute combinations have to have unambiguous meaning.
`
`Technical Requirements for QoS
`4.3
`This subclause presents the general high-level technical requirements for the UMTS QoS. QoS will be defined with a
`set of attributes. These attributes should meet the following criteria:
`
`- UMTS QoS control mechanisms shall provide QoS attribute control on a peer to peer basis between UE and 3G
`gateway node;
`
`-
`
`-
`
`the UMTS QoS mechanisms shall provide a mapping between application requirements and UMTS services;
`
`the UMTS QoS control mechanisms shall be able to efficiently interwork with current QoS schemes. Further, the
`QoS concept should be capable of providing different levels of QoS by using UMTS specific control
`mechanisms (not related to QoS mechanisms in the external networks);
`
`- a session based approach needs to be adopted for all packet mode communication within the 3G serving node
`with which UMTS QoS approach shall be intimately linked, essential features are multiple QoS streams per
`address;
`
`-
`
`-
`
`the UMTS shall provide a finite set of QoS definitions;
`
`the overhead and additional complexity caused by the QoS scheme should be kept reasonably low, as well as the
`amount of state information transmitted and stored in the network;
`
`- QoS shall support efficient resource utilisation;
`
`-
`
`the QoS attributes are needed to support asymmetric bearers;
`
`- applications (or special software in UE or 3G gateway node) should be able to indicate QoS values for their data
`transmissions;
`
`- QoS behaviour should be dynamic , i.e., it shall be possible to modify QoS attributes during an active session;
`
`- number of attributes should be kept reasonably low (increasing number of attributes, increase system
`complexity);
`
`- user QoS requirements shall be satisfied by the system, including when change of SGSN within the Core
`Network occurs.
`
`CS QoS in release 1999
`5
`For UMTS release '99 CS-CC, the QoS related bearer definitions of GSM (as defined in bearer capability information
`element, octet 6 and its extensions) are sufficient.
`
`Based on the Bearer Capability information element the following services can be identified:
`a) speech: from the Information Transfer Capability (ITC) parameter;
`
`3GPP
`
`

`

`
`Release 1999
`
`9
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`b) data, non-transparent: from the ITC and Connection element (CE) parameters;
`c) data, transparent: from the ITC and CE parameters.
`For each of the above services, associated call control parameters, including the Bearer Capability information element,
`can be considered to define the UMTS bearer service.
`
`The further mapping to Radio Access Bearer attributes is done according to the principles described in clause 8.
`
`NOTE: The mapping from GSM CC to UMTS RAB attributes is in the responsibility of CN WG1 and CN WG3.
`
`6
`
`QoS Architecture
`
`Overview of Different Levels of QoS
`6.1
`Network Services are considered end-to-end, this means from a Terminal Equipment (TE) to another TE. An End-to-
`End Service may have a certain Quality of Service (QoS) which is provided for the user of a network service. It is the
`user that decides whether he is satisfied with the provided QoS or not.
`
`To realise a certain network QoS a Bearer Service with clearly defined characteristics and functionality is to be set up
`from the source to the destination of a service.
`
`A bearer service includes all aspects to enable the provision of a contracted QoS. These aspects are among others the
`control signalling, user plane transport and QoS management functionality. A UMTS bearer service layered architecture
`is depicted in figure 1, each bearer service on a specific layer offers it's individual services using services provided by
`the layers below.
`
`TE
`
`MT
`
`UMTS
`
`UTRAN
`
`CN Iu
`EDGE
`NODE
`End-to-End Service
`
`CN
`Gateway
`
`TE
`
`TE/MT Local
`Bearer Service
`
`UMTS Bearer Service
`UMTS Bearer Service
`
`External Bearer
`Service
`
`Radio Access Bearer Service
`
`CN Bearer
`Service
`
`Radio Bearer
`Service
`
`Iu Bearer
`Service
`
`Backbone
`Bearer Service
`
`UTRA
`FDD/TDD
`Service
`
`Physical
`Bearer Service
`
`Figure 1: UMTS QoS Architecture
`
`3GPP
`
`
`
`

`

`
`Release 1999
`
`10
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`The End-to-End Service and UMTS Bearer Service
`6.1.1
`On its way from the TE to another TE the traffic has to pass different bearer services of the network(s). A TE is
`connected to the UMTS network by use of a Mobile Termination (MT). The End-to-End Service on the application
`level uses the bearer services of the underlying network(s). As the End-to-End Service is conveyed over several
`networks (not only UMTS) it is not subject for further elaboration in the present document.
`
`The End-to-End-Service used by the TE will be realised using a TE/MT Local Bearer Service, a UMTS Bearer Service,
`and an External Bearer Service.
`
`TE/MT Local Bearer Service is not further elaborated here as this bearer service is outside the scope of the UMTS
`network.
`
`Having said that the End-to-End Bearer Service is beyond the scope of the present document it is however the various
`services offered by the UMTS Bearer Service that the UMTS operator offers. It is this bearer service that provides the
`UMTS QoS.
`
`The External Bearer Service is not further elaborated here as this bearer may be using several network services, e.g.
`another UMTS Bearer Service.
`
`6.1.2
`
`The Radio Access Bearer Service and the Core Network Bearer
`Service
`As described in the previous subclause it is the UMTS Bearer Service that provides the UMTS QoS. The UMTS Bearer
`Service consists of two parts, the Radio Access Bearer Service and the Core Network Bearer Service. Both services
`reflects the optimised way to realise the UMTS Bearer Service over the respective cellular network topology taking into
`account such aspects as e.g. mobility and mobile subscriber profiles.
`
`The Radio Access Bearer Service provides confidential transport of signalling and user data between MT and CN Iu
`Edge Node with the QoS adequate to the negotiated UMTS Bearer Service or with the default QoS for signalling. This
`service is based on the characteristics of the radio interface and is maintained for a moving MT.
`
`If unequal error protection shall be supported, it is provided by underlying Radio Bearer Services. In this case the
`payload of the user data SDU, transported by the Radio Access Bearer Service, shall conform to a SDU format defined
`with possible exact sizes and the payload bits statically structured per size. Each bit of the SDU payload belongs to a
`defined subflow. At Radio Access Bearer Service establishment, the exact SDU payload format and required reliability
`per subflow is signalled to UTRAN using standardised attributes (see subclause 6.4.3).
`
`In release 1999, unequal error protection for a Radio Access Bearer is only applicable for services using a codec
`integrated in the core network. This implies that UMTS Bearer service can not use the attribute SDU format information
`to define subflows and the payload bits of the SDUs will therefore be equally protected.
`
`The Core Network Bearer Service of the UMTS core network connects the UMTS CN Iu Edge Node with the CN
`Gateway to the external network. The role of this service is to efficiently control and utilise the backbone network in
`order to provide the contracted UMTS bearer service. The UMTS packet core network shall support different backbone
`bearer services for variety of QoS.
`
`The Radio Bearer Service and the Iu Bearer Service
`6.1.3
`The Radio Access Bearer Service is realised by a Radio Bearer Service and an Iu-Bearer Service.
`
`The role of the Radio Bearer Service is to cover all the aspects of the radio interface transport. This bearer service uses
`the UTRA FDD/TDD, which is not elaborated further in the present document.
`
`To support unequal error protection, UTRAN and MT shall have the ability to segment/reassemble the user flows into
`the different subflows requested by the Radio Access Bearer Service. The segmentation/ reassemble is given by the
`SDU payload format signalled at Radio Access Bearer establishment. The Radio Bearer service handles the part of the
`user flow belonging to one subflow, according to the reliability requirements for that subflow.
`
`The Iu-Bearer Service together with the Physical Bearer Service provides the transport between UTRAN and CN. Iu
`bearer services for packet traffic shall provide different bearer services for variety of QoS.
`
`3GPP
`
`

`

`
`Release 1999
`
`11
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`The Backbone Network Service
`6.1.4
`The Core Network Bearer Service uses a generic Backbone Network Service.
`
`The Backbone Network Service covers the layer 1/Layer2 functionality and is selected according to operator's choice in
`order to fulfil the QoS requirements of the Core Network Bearer Service. The Backbone Network Service is not specific
`to UMTS but may reuse an existing standard.
`
`QoS Management Functions in the Network
`6.2
`The purpose of this subclause is to give a comprehensive overview of functionality needed to establish, modify and
`maintain a UMTS Bearer Service with a specific QoS. The relations between the functions internal to the nodes are
`implementation specific. The allocation of these functions to the UMTS entities shall indicate the requirement for the
`specific entity to enforce the QoS commitments negotiated for the UMTS bearer service. The specific realisation of
`these functions is implementation dependent and has only to maintain the specified QoS characteristics. The QoS
`management functions of all UMTS entities together shall ensure the provision of the negotiated service between the
`access points of the UMTS bearer service. The end-to-end service is provided by translation/mapping with UMTS
`external services.
`
`6.2.1
`
`Description of functions
`
`QoS management functions for UMTS bearer service in the control plane
`6.2.1.1
`Service Manager co-ordinates the functions of the control plane for establishing, modifying and maintaining the
`service it is responsible for. And, it provides all user plane QoS management functions with the relevant attributes. The
`service manager offers services to other instances, it signals with peer service managers and uses services provided by
`other instances. The service manager may perform an attribute translation to request lower layer services. Furthermore,
`it may interrogate other control functions to receive permission for service provision.
`Translation function converts between the internal service primitives for UMTS bearer service control and the various
`protocols for service control of interfacing external networks. The translation includes the converting between UMTS
`bearer service attributes and QoS attributes of the external networks service control protocol (e.g. between IETF TSPEC
`and UMTS service attributes). The service manager may include a translation function to convert between its service
`attributes and the attributes of a lower layer service it is using.
`
`Admission/Capability control maintains information about all available resources of a network entity and about all
`resources allocated to UMTS bearer services. It determines for each UMTS bearer service request or modification
`whether the required resources can be provided by this entity and it reserves these resources if allocated to the UMTS
`bearer service. The function checks also the capability of the network entity to provide the requested service, i.e.
`whether the specific service is implemented and not blocked for administrative reasons. The resource control performed
`by the admission control supports also the service retention.
`
`Subscription Control checks the administrative rights of the UMTS bearer service user to use the requested service
`with the specified QoS attributes.
`
`Functions for UMTS bearer service in the user plane
`6.2.1.2
`User plane QoS management functions maintain the signalling and user data traffic within certain limits, defined by
`specific QoS attributes. UMTS bearer services with different QoS attribute values shall be supported by the QoS
`management functions. These functions ensure the provision of the QoS negotiated for a UMTS bearer service.
`
`Mapping function provides each data unit with the specific marking required to receive the intended QoS at the
`transfer by a bearer service.
`Classification function assigns data units to the established services of a MT according to the related QoS attributes if
`the MT has multiple UMTS bearer services established. The appropriate UMTS bearer service is derived from the data
`unit header or from traffic characteristics of the data.
`
`Resource Manager distributes the available resources between all services sharing the same resource. The resource
`manager distributes the resources according to the required QoS. Example means for resource management are
`scheduling, bandwidth management and power control for the radio bearer.
`
`3GPP
`
`

`

`
`Release 1999
`
`12
`
`3GPP TS 23.107 V3.5.0 (2000-12)
`
`Traffic conditioner provides conformance between the negotiated QoS for a service and the data unit traffic. Traffic
`conditioning is performed by policing or by traffic shaping. The policing function compares the data unit traffic with the
`related QoS attributes. Data units not matching the relevant attributes will be dropped or marked as not matching, for
`preferential dropping in case of congestion. The traffic shaper forms the data unit traffic according to the QoS of the
`service. The reference algorithm for traffic conditioning is described in Annex B. This reference algorithm should not
`be interpreted as a required implementation algorithm.
`
`6.2.2
`
`Allocation of QoS management functions
`
`QoS management functions for UMTS bearer service in the control plane
`6.2.2.1
`The QoS management functions for controlling the UMTS bearer service are shown in figure 2. These control functions
`support the establishment and the modification of a UMTS bearer service by signalling/negotiation with the UMTS
`external services and by the establishment or modification of all UMTS internal services with the required
`characteristics.
`
`TE
`
`MT
`
`Local
`Service
`Control
`
`Transl.
`
`Adm./Cap.
`Control
`
`UMTS BS
`Manager
`
`UTRAN
`
`Adm./Cap.
`Control
`
`RAB
`Manager
`
`CN EDGE
`
`Gateway
`
`Adm./Cap.
`Control
`
`Subscr.
`Control
`
`Adm./Cap.
`Control
`
`Transl.
`
`UMTS BS
`Manager
`
`UMTS BS
`Manager
`
`Ext.
`Netw.
`
`Ext.
`Service
`Control
`
`Local BS
`Manager
`
`Radio BS
`Manager
`
`Radio BS
`Manager
`
`Iu BS
`Manager
`
`Adm.
`Iu BS
`Contr
`Manager
`
`CN BS
`Manager
`
`CN BS
`Manager
`
`Ext. BS
`Manager
`
`UTRA
`ph. BS M
`
`UTRA
`ph. BS M
`
`Iu NS
`Manager
`
`Iu NS
`Manager
`
`BB NS
`Manager
`
`BB NS
`Manager
`
`protocol interface
`
`service primitive interface
`
`
`
`Figure 2: QoS management functions for UMTS bearer service in the control plane
`
`The translation functions (Trans.) in the MT and the Gateway convert between external service signalling and internal
`service primitives including the translation of the service attributes. The translation function in the Gateway is FFS
`regarding packet oriented services.
`
`The UMTS