Christine Falk

Presented to:

Federal AviationAdministration

Introduction to

Required Communication Performance (RCP)

andRequired Surveillance

Performance (RSP)

Christine Falk

8-10 February 2012

SOCM/2

2Federal AviationAdministration

Intro to RCP8 February 2012

Introduction

1. Guidance & Directives

2. Required Communication Performance - RCP 400

- RCP 240

3. Required Surveillance Performance - RSP 400

- RSP 180

Guidance PublicationsFor RCP and RSP

• ICAO Doc 4444 and ICAO Annexes 2,6,10, and 11

• Global Operational Data Link Document (GOLD), 14 June 2010

-- Derived from these documents- RTCA DO-306 Safety and Performance Standard for Air Traffic Data Link

Services in Oceanic and Remote Airspace (Oceanic SPR Standard), 11 October 2007

- ICAO Document 9869, Manual on Required Communication Performance, First Edition, 2008

Authorization Requirement

ICAO Annex 6, Chapter 7

7.1.3 For flights in defined portions of airspace or on routes where an RCP type has been prescribed, an aeroplane shall, in addition to the requirements specified in 7.1.1:

a) be provided with communication equipment which will enable it to operate in accordance with the prescribed RCP type(s); and

b) be authorized by the State of the Operator for operations in such airspace.

Performance Based Operations

Balances capability & performance of:

RCP RNP

• Navigation

• Communications

• Surveillance

• Air Traffic Management (ATM)

RNP – required navigation performance

RCP – required communication performance

RSP – required surveillance performance

Required Communication Performance

A statement of communication performance necessary for a particular operation or service.

– Operationally derived and not based on any specific techniques, technologies and/or architecture.

– Defined for an operational communication transaction (two-way)

– Includes both human and technical elements

– Applies to both voice and data link communications

GOLD / RTCA DO-306

RCP Specifications

Intended uses for which RCP specification is applicable

RCP 400

- Technology other than HF voice radio is normal means of communications

-- Lateral separation ≥ 50 NM

-- Time-based longitudinal separation (10 min or greater)

- Technology other than HF voice radio is alternative means of communications

-- Lateral separation = 30 NM lateral

-- Reduced longitudinal separation minima

RCP 240- CPDLC is the primary means of communications

-- Lateral separation = 30 NM

RCP specification is…

• A label that defines a performance standard for operational communication transactions (e.g. RCP 400)

• Provides allocations to the air traffic service provider (ATSP), communication service provider (CSP), aircraft operator and aircraft system

• Denotes operational values for:– Communication transaction time– RCP Continuity– RCP Availability– RCP Integrity

RCP Communication Transaction Time - The maximum time for the completion of the transaction after which the initiator should revert to an alternative procedure.

RCP definitions

RCP Continuity - Probability that a transaction can be completed within the communication transaction time given that the service was available at the start of the transaction. - Either expiration time (ET) or nominal time (TT) of 95%

RCP Availability - Probability that a transaction can be initiated when needed.

RCP Integrity - Probability that a transaction is completed with no undetected errors.

Operational communication transaction - The process a human uses to send an instruction, a clearance, flight information and/or a request. The process is completed when that human is confident that the transaction is complete.

Oceanic RCP specifications(applies to CPDLC)

Specification

Transaction

Time (sec)Continuity Availability Integrity

400400---------------

0.999-----------------------

0.950.999 Malfunction = 10-5

per flight hour

240240

-----------------

0.999---------------------

0.999(safety)

0.9999 (efficiency)

Malfunction = 10-5

per flight hour

CPDLC – Controller Pilot Data Link Communication

RCP Type

Intervention

clearance issued

Controller /

HMIATSU

System

SystemFlight Crew /

Aircraft

System

Aircraft

System

SystemATSU

System

Controller /

Controllerconfident

transactioncomplete

communication transaction time

Clearance

acknowledgement

receivedRCP 40099.9% ≤ 60 sec95% ≤ 60 sec

RCP 40099.9% ≤ 310 sec95% ≤ 260 sec

RCP 40099.9% ≤ 370 sec95% ≤ 320 sec

RCP 40099.9% ≤ 400 sec95% ≤ 350 sec

ATM System

RCTP – Required Communication Technical Performance

PORT – Pilot Operational Response Time

TRN – Monitored Operational Performance

HMI – Human Machine Interface

RCP Type

Intervention

clearance issued

Controller /

HMIATSU

System

SystemFlight Crew /

Aircraft

System

Aircraft

System

SystemATSU

System

Controller /

Controllerconfident

transactioncomplete

communication transaction time

Clearance

acknowledgement

receivedRCP 24099.9% ≤ 60 sec95% ≤ 60 sec

RCP 24099.9% ≤ 150 sec95% ≤ 120 sec

RCP 24099.9% ≤ 210 sec95% ≤ 180 sec

RCP 24099.9% ≤ 240 sec95% ≤ 210 sec

RCTP – Required Communication Technical Performance

PORT – Pilot Operational Response Time

TRN – Monitored Operational Performance

HMI – Human Machine Interface

RCP Availability Criteria

Availability parameter Efficiency Safety Compliance means

Service Availability (A CSP) N/A .999 Contract/service agreement terms

Unplanned outage duration limit (min) N/A 20 Contract/service agreement terms

Maximum number of unplanned outages (per year)

N/A 24 Contract/service agreement terms

Maximum accumulated unplanned outage time (min/yr)

Unplanned outage notification delay (min)

Specification RCP 400/D Application: CPDLC Component: CSP

CPDLC – controller pilot data link communicationsCSP – communication service provider

RCP Availability Criteria

Service Availability (A CSP) .9999 .999 Contract/service agreement terms

Unplanned outage duration limit (min) 10 10 Contract/service agreement terms

4 48 Contract/service agreement terms

Specification RCP 240/D Application: CPDLC Component: CSP

And here we conduct our flight

En Route OceanicTerminal En Route Terminal

RCP 10/V - Basic

RCP 60/D - IC

RCP 400/V - Basic

RCP 240/D - RHSM

RCP 10/V - Basic

RCP 400/D – IC

RCP 60/D - TAP

SATCOM radio fails

5. Ground side monitors communication service

6. Air side monitors aircraft system

7. Pilot/controller receives alerts for communication failures

2. Eligible Operators file for service level(s)

3. Pilot/controller know RCP type, just as they know RNAV/RNP type

1. RCP types for service level(s) published in AIPs and charts

4. Pilot/controller operates according to RCP type

GES Outag

/D - Data/V - VoiceIC – Increased capacityRHSM – Reduced horizontal separation minimaTAP – Tailored Arrival Procedure

Any questions on RCP?

Evolution of SurveillanceVoice Position Report

Secondary surveillance radar (SSR)

Primary surveillance radar

Required Surveillance Performance - RSP

• Defines high-level surveillance system performance requirements.

• Operationally derived and not based on any specific techniques, technologies and/or architecture.

• Includes both ground and airborne systems.

• Supports a particular ATM application (e.g. reduced separation)

specificationIntended uses for which surveillance type is applicable

- ADS‑C or FMC WPR is the normal means of surveillance

-- Lateral separation ≥ 50 NM

-- Time-based longitudinal separation (10 min or greater)

- Technology other than HF voice radio provides an alternative means of surveillance, e.g. position reporting via satellite voice

180- ADS-C is the normal means of surveillance

GOLD / RTCA DO-306

RSP specification is…

A label (e.g. type 400) that represents the values assigned to surveillance performance parameters for:

– Surveillance data transit time– RSP Continuity– RSP Availability– RSP Integrity

Provides allocations to the air traffic service provider, communication service provider, aircraft operator and aircraft system

RSP definitions

Surveillance data transit time - The required time for surveillance data delivery.

RSP Continuity - The required probability that surveillance data can be delivered within the delivery time parameter given that the service was available at the start of delivery. - Either Overdue Time (OT) or nominal delivery time (DT) of 95%

RSP Availability - The required probability that surveillance data can be provided when needed.

RSP Integrity - The required probability that surveillance data is delivered with no undetected error.

Oceanic Surveillance Performance Specification (applies to ADS-C)

Specification

Surveillance delivery time

Continuity Availability Integrity

---------

Navigation FOM(see note below)

Time at position accuracy± 1 sec (UTC)

Data IntegrityMalfunction = 10 -5 per flight hour

---------

0.999 (safety)------------0.9999

(efficiency)

Navigation FOM(see note below)

Time at position accuracy± 1 sec (UTC)

Data IntegrityMalfunction = 10 -5 per flight hour

Note: The navigation figure of merit (FOM) is specified on the navigation criteria associated with this specification.

RSP 400 – time / continuityFlight Crew /

Aircraft

System

SystemATSU

System

Controller /

Surveillance D

elivery

RSP400

SurveillanceData

RSTP AIR

RSTP ATSP

RSTP CSP

Time at position,or, for ATSU

Systemmonitoring, time

expected atPosition.

RSP 40099.9% ≤ 30 sec95% ≤ 15 sec

RSP 40099.9% ≤ 340 sec95% ≤ 270 sec

RSP 40099.9% ≤ 30 sec

95% ≤ 15 sec

RSP 40099.9% ≤ 400 sec95% ≤ 300 sec

RSTP – Required Surveillance Total Performance

RSP 180 – time / continuityFlight Crew /

Aircraft

System

SystemATSU

System

Controller /

Surveillance D

elivery

RSP180

Surveillance Data

RSTP AIR

RSTP ATSP

RSTP CSP

Time at position,or, for ATSU

Systemmonitoring, time

expected atPosition

RSP 18099.9% ≤ 5 sec95% ≤ 3 sec

RSP 18099.9% ≤ 170 sec

95% ≤ 84 sec

RSP 18099.9% ≤ 5 sec

95% ≤ 3 sec

RSP 18099.9% ≤ 180 sec

95% ≤ 90 sec

RSTP – Required Surveillance Total Performance

Surveillance Availability Criteria

Service Availability (A CSP) N/A .999 Contract/service agreement terms

Unplanned outage duration limit (min) N/A 20 Contract/service agreement terms

Specification Type 400 Application ADS-C Component: CSP

Surveillance Availability Criteria

Service Availability (A CSP) .9999 .999 Contract/service agreement terms

Unplanned outage duration limit (min) 10 10 Contract/service agreement terms

Specification Type 180 Application ADS-C Component: CSP

RCP / RSP is not the same as RNP

Some similarity, but…

Item RNP RCP / RSP

Specificationsexclusive to aircraft and

operatorend-to-end system requirements

Monitoring and alerting

real time monitoring and alerting

real-time monitoring and alerting

post-implementation monitoring(statistical) and corrective action

aircraft and operator shared between aircraft and ATSP / ATSU

Summary

1. Guidance & Directives

2. Required Communication Performance - RCP 400

- RCP 240

4. Required Surveillance Performance - RSP 400

- RSP 180

Christine Falk

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