SIST EN 303 146-2 V1.2.1:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Reconfigurable Radio Systems (RRS) - Mobile Device Information Models and Protocols - Part 2: Reconfigurable Radio Frequency Interface (RRFI)35.200Vmesniška in povezovalna opremaInterface and interconnection equipment33.060.01Radijske komunikacije na splošnoRadiocommunications in generalICS:Ta slovenski standard je istoveten z:ETSI EN 303 146-2 V1.2.1 (2016-06)SIST EN 303 146-2 V1.2.1:2016en01-september-2016SIST EN 303 146-2 V1.2.1:2016SLOVENSKI

ETSI EN 303 146-2 V1.2.1 (2016-06) Reconfigurable Radio Systems (RRS); Mobile Device (MD) information models and protocols; Part 2: Reconfigurable Radio Frequency Interface (RRFI)

Reference REN/RRS-0246 Keywords interface, mobile, SDR ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE

Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88

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ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 3 Contents Intellectual Property Rights ................................................................................................................................ 4 Foreword ............................................................................................................................................................. 4 Modal verbs terminology .................................................................................................................................... 4 1 Scope ........................................................................................................................................................ 5 2 References ................................................................................................................................................ 5 2.1 Normative references ......................................................................................................................................... 5 2.2 Informative references ........................................................................................................................................ 5 3 Definitions and abbreviations ................................................................................................................... 6 3.1 Definitions .......................................................................................................................................................... 6 3.2 Abbreviations ..................................................................................................................................................... 7 4 Introduction .............................................................................................................................................. 8 5 System Identification ................................................................................................................................ 9 5.1 Radio Computer Structure .................................................................................................................................. 9 5.2 URA ................................................................................................................................................................. 11 5.3 RF Transceiver ................................................................................................................................................. 11 5.4 RF Interfaces .................................................................................................................................................... 11 5.5 Radio Computer RF System Requirement Mapping ........................................................................................ 11 6 Notational Tools ..................................................................................................................................... 12 6.1 Notational Tool for Information Model Classes ............................................................................................... 12 6.2 Notational Tool for Interface Classes ............................................................................................................... 13 7 Information Model for Radio Computer ................................................................................................ 13 7.1 Radio Computer ............................................................................................................................................... 13 7.2 Class Definitions for Information Model ......................................................................................................... 16 8 Interface Definition ................................................................................................................................ 21 8.1 Interface Overview ........................................................................................................................................... 21 8.2 Spectrum Control Services ............................................................................................................................... 24 8.2.1 Overview on Spectrum Control Services .................................................................................................... 24 8.2.2 Messages for Spectrum Control Services ................................................................................................... 24 8.3 Power Control Services .................................................................................................................................... 25 8.3.1 Overview on Power Control Services ......................................................................................................... 25 8.3.2 Messages for Power Control Services ........................................................................................................ 25 8.4 Antenna Management Services ........................................................................................................................ 25 8.4.1 Overview on Antenna Management Services ............................................................................................. 25 8.4.2 Messages for Antenna Management Services............................................................................................. 26 8.5 Tx/Rx Chain Control Services.......................................................................................................................... 26 8.5.1 Overview on Tx/Rx Chain Control Services .............................................................................................. 26 8.5.2 Messages for Tx/Rx Chain Control Services .............................................................................................. 26 8.6 RVM Protection Services ................................................................................................................................. 27 8.6.1 Overview on RVM Protection Services ...................................................................................................... 27 8.6.2 Messages for RVM Protection Services ..................................................................................................... 28 8.7 Class Definitions for Interface .......................................................................................................................... 28 Annex A (informative): Abstract Data Definitions .............................................................................. 31 Annex B (informative): RRFI Qualification Methods for Validation ............................................... 34 History .............................................................................................................................................................. 35

ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https://ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Reconfigurable Radio Systems (RRS). The present document is part 2 of a multi-part deliverable covering the Mobile Device (MD) information models and protocols, as identified below: ETSI EN 303 146-1:

"Multiradio Interface (MURI)"; ETSI EN 303 146-2: "Reconfigurable Radio Frequency Interface (RRFI)"; ETSI EN 303 146-3:

National transposition dates Date of adoption of this EN: 30 May 2016 Date of latest announcement of this EN (doa): 31 August 2016 Date of latest publication of new National Standard or endorsement of this EN (dop/e):

28 February 2017 Date of withdrawal of any conflicting National Standard (dow): 28 February 2017

Modal verbs terminology In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and "cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). "must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 5 1 Scope The present document defines an information model and protocol for reconfigurable radio frequency interface for reconfigurable MDs. The work is based on the Use Cases defined in ETSI TR 102 944 [i.1], on the system requirements defined in ETSI EN 302 969 [1] and on the radio reconfiguration related architecture for mobile devices defined in ETSI EN 303 095 [i.8]. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. [1] ETSI EN 302 969 (V1.2.1): "Reconfigurable Radio Systems (RRS); Radio Reconfiguration related Requirements for Mobile Devices". 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] ETSI TR 102 944: "Reconfigurable Radio Systems (RRS); Use Cases for Baseband Interfaces for Unified Radio Applications of Mobile Device". [i.2] Recommendation ITU-T Q.1290: "Glossary of Terms used in the Definition of Intelligent Networks". [i.3] ETSI TR 102 839: "Reconfigurable Radio Systems (RRS); Multiradio Interface for Software Defined Radio (SDR) Mobile Device Architecture and Services". [i.4] IEEE 1900.4-2009™: "IEEE Standard for Architectural Building Blocks Enabling Network-Device Distributed Decision Making for Optimized Radio Resource Usage in Heterogeneous Wireless Access Networks". [i.5] ETSI EN 303 146-1: "Reconfigurable Radio Systems (RRS); Mobile Device Information Models and Protocols; Part 1: Multiradio Interface (MURI)". [i.6] DigRFSM Working Group: "MIPI® Alliance Specification for DigRFSM v4". [i.7] Recommendation ITU-T X.680: "Information technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation". SIST EN 303 146-2 V1.2.1:2016

ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 6 [i.8] ETSI EN 303 095 (V1.2.1): "Reconfigurable Radio Systems (RRS); Radio Reconfiguration related Architecture for Mobile Devices". 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: Application Processor (AP): part of mobile device hardware working under OS control and on which User Applications, among others, are executed channel: designated part of the information transfer capability having specified characteristics, provided at the user network interface NOTE: It is the over-the-air wireless propagation channel which is used to convey an information signal from transmitter to receiver. This definition is specified in Recommendation ITU-T Q.1290 [i.2]. Communication Services Layer (CSL): layer related to communication services supporting generic applications NOTE: A communication services layer supports generic applications like Internet access. In the present document, it consists of Administrator, Mobility Policy Manager (MPM), Networking stack and Monitor. link: connection from one location to another through a given Radio Access Technology for the purpose of transmitting and receiving digital information NOTE: Each Link is conveyed over a given Channel. Radio Application (RA): software which enforces the generation of the transmit RF signals or the decoding of the receive RF signals NOTE 1: The software is executed on a particular radio platform or an RVM as part of the radio platform. NOTE 2: RAs might have different forms of representation. They are represented as:

source codes including Radio Library calls of Radio Library native implementation and Radio HAL calls;

IRs including Radio Library calls of Radio Library native implementation and radio HAL calls;

executable codes for a particular radio platform. Radio Computer (RC): part of mobile device hardware working under ROS control and on which RAs are executed NOTE: A Radio Computer typically includes programmable processors, hardware accelerators, peripherals, etc. RF part is considered to be part of peripherals. Radio Control Framework (RCF): control framework which, as a part of the OS, extends OS capabilities in terms of radio resource management NOTE: RCF is a control framework which consists of Configuration Manager (CM), Radio Connection Manager (RCM), Flow Controller (FC), Multiradio Controller (MRC) and Resource Manager (RM) which is typically part of OS. Radio Frequency (RF) transceiver: part of radio platform converting, for transmission, baseband signals into radio signals, and, for reception, radio signals into baseband signals Radio Operating System (ROS): any appropriate OS empowered by RCF NOTE: ROS provides RCF capabilities as well as traditional management capabilities related to management of RP such as resource management, file system support, unified access to hardware resources, etc. SIST EN 303 146-2 V1.2.1:2016

ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 7 radio platform: part of mobile device hardware which relates to radio processing capability, including programmable components, hardware accelerators, RF transceiver, and antenna(s) NOTE: A Radio Platform is a piece of hardware capable of generating RF signals or receiving RF signals. By nature, it is heterogeneous hardware including different processing elements such as fixed accelerators, e.g. Application-Specific Integrated Circuit (ASIC), or reconfigurable accelerators, e.g. FPGAs, etc. Radio Virtual Machine (RVM): abstract machine which supports reactive and concurrent executions NOTE: An RVM may be implemented as a controlled execution environment which allows the selection of a trade-off between flexibility of base band code development and required (re-)certification efforts.

reconfigurable Mobile Device (MD): Mobile Device with radio communication capabilities providing support for radio reconfiguration NOTE: Reconfigurable Mobile Devices include but are not limited to: smartphones, feature phones, tablets, and laptops. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ACK ACKnowledgement ACKM ACKnowledgement with Modification AP Application Processor ASIC Application-Specific Integrated Circuit ASN.1 Abstract Syntax Notation One BBIC Base-Band Integrated Circuit BLER Block Error Rate CSL Communication Services Layer EU European Union MD Mobile Device MDRC Mobile Device Reconfiguration Class MIMO Multiple Input Multiple Output MPM Mobility Policy Manager MURI MUltiRadio Interface NACK Negative ACKnowledgement OOB Out Of Band OS Operating System RA Radio Application RAN Radio Access Network RAP Radio Application Package RAT Radio Access Technology RC Radio Computer RCF Radio Control Framework RF Radio Frequency RFIC Radio Frequency Integrated Circuit ROS Radio Operating System RPI Radio Programming Interface RRFI Reconfigurable Radio Frequency Interface RVM Radio Virtual Machine RX Reception SINR Signal to Interference plus Noise Ratio TR Technical Report UML Unified Modeling Language URA Unified Radio Applications URAI Unified Radio Applications Interface SIST EN 303 146-2 V1.2.1:2016

ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 8 4 Introduction A reconfigurable MD is capable of running multiple radios simultaneously and of changing the set of radios by loading new Radio Application Package (RAP). All Radio Applications (RAs) are called Unified Radio Applications (URAs) when they exhibit a common behaviour from the reconfigurable MD's point of view [1]. In order to run multiple URAs, the reconfigurable MD will include Communication Services Layer (CSL), Radio Control Framework (RCF), Radio Platform and 4 sets of interfaces for their interconnection.

Figure 4.1: Four sets of interfaces for reconfigurable MD Figure 4.1 illustrates the reconfigurable MD architecture with the 4 sets of interfaces, i.e.: • MURI for interfacing CSL and RCF [i.5]. • RRFI for interfacing URA and RF Transceiver, which is the scope of the present document. • URAI for interfacing URA and RCF [i.3]. • RPI for allowing an independent and uniform production of RAs [i.3]. The present document defines RRFI. SIST EN 303 146-2 V1.2.1:2016

ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 9 RadioComputer<>IMURI<>IRRFI<>IRPI<>IURAI Figure 4.2: UML class diagram for RC interfaces Figure 4.2 illustrates UML class diagram for RC interfaces. The reconfigurable MD may be seen as a RC where individual URAs are engineered as software entities [i.8]. The present document is organized as follows: • clause 5 describes the system identification; • clause 6 describes the notational tool for defining both information model classes and interface classes; • clause 7 describes the information model for RC; and • clause 8 describes the interface definition. While UML is used for defining the information model and protocol related to RRFI, other modelling languages could be used as well. 5 System Identification 5.1 Radio Computer Structure Figure 5.1 illustrates how URA and RF Transceiver interacts with each other using RRFI. SIST EN 303 146-2 V1.2.1:2016

using RRFI for reconfigurable MD As shown in figure 5.1, RRFI can support up to 5 kinds of services depending on the applicable MDRC [1].

A Reconfigurable MD shall support all the services as required by the corresponding MDRC as shown in table 5.1 and fully detailed in clause 8 of the present document. In case that a reconfigurable MD supports multiple MDRCs, the concerned reconfigurable MD shall support all the services as defined in table 5.1. Table 5.1: Required services of RRFI according to each MDRC Mobile Device Reconfiguration Class Spectrum Control services Power Control services Antenna Management services Tx/Rx Chain Control services RVM Protection services MDRC-0 No No No No No MDRC-1 Yes Yes No No Yes MDRC-2, MDRC-5 Yes Yes Yes Yes (see note) Yes MDRC-3, MDRC-6 Yes Yes Yes Yes Yes MDRC-4, MDRC-7 Yes Yes Yes Yes Yes NOTE: Among the various Tx/Rx Chain Control services, only the service related with Tx/Rx timing is required in this case.

A corresponding summary of the services is given below. • Spectrum Control services These services are used to set up spectrum-related parameters such as carrier frequency, bandwidth, sampling frequency, etc. that will be determined according to the URAs they are related to. • Power Control services These services are used to set up RF power-related parameters such as maximum transmit (Tx) power level, Tx power level per antenna, receive (Rx) gain, etc. Specific power schemes which have to be controlled according to the communication circumstance around the reconfigurable MD are also included in the Power Control services. • Antenna Management services These services are used to determine the antenna configuration. Antenna radiation pattern, antenna gain, antenna direction, sector configuration, polarization, frequency range, etc. are some factors to be considered in the Antenna Management services.

NOTE: Antenna Management services depend on the configurability of the antenna. SIST EN 303 146-2 V1.2.1:2016

ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 11 • Tx/Rx Chain Control services These services are used to provide parameters related to real-time control of the RF transceiver chain. Parameters to be controlled using the Tx/Rx Chain Control services include (but are not limited to) Tx start/stop time, Rx start/stop time, spectrum- and/or power-related values.

• RVM Protection services These services are used to provide parameters related to the selection of RVM protection class. Parameters to be controlled using the RVM Protection services include (but are not limited to) selection and/or request of RF protection class as well as, RF Front-end indication of input data signals modification. The clauses 5.2 to 5.4 describe the components/entities shown in figure 5.1. 5.2 URA RAs need to be subject to a common reconfiguration, multiradio execution and resource sharing strategy framework (depending on the concerned MDRC). Since all RAs exhibit a common behaviour from the reconfigurable MD perspective, those RAs are called URAs [i.8]. 5.3 RF Transceiver RF Transceiver, which includes transceiver chain(s), is part of the radio platform in RC that transforms, in Tx mode, the baseband signal to radio signal, and in Rx mode, the radio signal to baseband signal. 5.4 RF Interfaces The RF Interfaces depicted in figure 5.1 denote digital interfaces which define the physical interconnections between base-band and RFIC (Radio Frequency Integrated Circuit), for example, the DigRFSM specification defining the interface between an RFIC and a BBIC (Base-Band Integrated Circuit) in a mobile device. RRFI defined in the present document complements such RF interfaces by defining services which are required for reconfigurable MDs. 5.5 Radio Computer RF System Requirement Mapping The Radio Computer components above described shall support the RF system requirements shown in table 5.2 and described in clause 6.5 of ETSI EN 302 969 [1].

NOTE: The transceiver requirements defined in clauses 6.5.5, 6.5.6 and 6.5.8 of ETSI EN 302 969 [1] are not related to the RF Interface defined in the present document and therefore do not appear in table 5.2. Table 5.2: Mapping of RC Components to the system requirements described in ETSI EN 302 969 [1] Entity/Component/Unit System Requirements [1] Comments Unified Radio Applications R-FUNC-RFT-02 Radio Application selects a suitable number of antenna inputs/outputs. The requirement is described in clause 6.5.2 of ETSI EN 302 969 [1]. RF Transceiver R-FUNC-RFT-03 The reconfigurable MD supports multiple Radio Applications using distinct frequency bands. The requirement is described in clause 6.5.3 of ETSI EN 302 969 [1]. R-FUNC-RFT-04 RF transceiver manages input/output signals from/to one or several Radio Applications. The requirement is described in clause 6.5.4 of ETSI EN 302 969 [1]. Reconfigurable RF Interface R-FUNC-RFT-01, R-FUNC-RFT-07 The RRFI provides a suitable interface for RF transceiver configuration. The requirement is described in clauses 6.5.1 and 6.5.7 of ETSI EN 302 969 [1]. R-FUNC-RFT-09 The RRFI supports a suitable selection of an RF protection class. The requirement is described in clause 6.5.9 of ETSI EN 302 969 [1]. SIST EN 303 146-2 V1.2.1:2016

ETSI ETSI EN 303 146-2 V1.2.1 (2016-06) 12 6 Notational Tools 6.1 Notational Tool for Information Model Classes Table 6.1 shows a template for defining information model classes [i.4]. Each information model class is defined in clause 7.2 in accordance with the template shown in table 6.1. NOTE: ASN.1 is used throughout the present document for abstract type definitions; however, alternative ways are possible and are not excluded.

Table 6.1: Template for defining Information Model Classes Class[(abstract class)] DERIVED FROM ATTRIBUTES [] Value type: Possible access: Default value: CONTAINED IN CONTAINS ] - exactly n instances, • [ - ] - not less than m and not more than n instances.> SUPPORTED EVENTS .

Further details on the template in table 6.1 are given below. • is the name of the Class as it appears in the corresponding model. Additional information is also included in case the class in question has been specified as an abstract one. • DERIVED FROM field identifies the super class of the class in case of sub-classing. • ATTRIBUTES field describes the attributes that have been defined in the class. More specifically: - identifies the name of an attribute, as it is included in the class definition. - holds the type of the attribute specified in Abstract Syntax Notation One (ASN.1). Details related to the ASN.1 module are specified in annex A of the present document. - provides information about the level of accessibility of the attribute. This may include: 'Read', 'Write', 'Read-Write', 'Add-Remove' (for list-type attributes), 'Read-Add-Remove', and 'None' (for internal access only). • CONTAINED IN field includes a list of classes whose instances may contain an instance of this class; containment is a strong aggregation relationship, that is, a contained instance is for its lifetime bound to its contai