Continental BSRF-V1RWHIGH.0 User Manual

Document Control

1. Abstract

1.1 Change History

1.2 List of Abbreviations

1.3 Scope of Document

The aim of this document is to provide a system, functional and general product description of the BSRF intelligent antenna module.

2. Manufacturer Information

Manufacturer and Applicant: Continental Automotive GmbH, Siemensstrasse 12, 93055 Regensburg, Germany

Brand/Trademark: Continental

Factory/Manufacturing Location: Continental Automotive Systems S.R.L., Strada Salzburg 8, 550018 Sibiu, Romania

Country of Origin: Romania

3. Product and System Description

The BSRF is an Intelligent Antenna Module (IAM) for telematic and connectivity purposes to be factory fitted to passenger vehicles by the car manufacturer. It is designed and produced by Continental Automotive for the PSA Group.

The BSRF is designed for roof mounting with integrated antennas protected by a shark fin cover situated above the roof and internal PCB antennas below the roof surface.

The BSRF does not provide a direct user interface. Instead, it provides the below mentioned radio features to be used by other control units and interfaces, e.g., the Head Unit (HU) in the vehicle via the vehicle electrical bus. The only exception to this is the Emergency and Assistance Call functionalities, which can operate autonomously in the vehicle or via a push button. The BSRF uses a factory-mounted embedded SIM (MFF2).

A built-in backup antenna provides cellular network access in case the main integrated antennas covered by the shark fin get damaged, e.g., during a roll-over crash scenario.

The BSRF is connected to the car power supply via a 4-pin battery connector, and to the vehicle interfaces via a 20-pin and a BroadR-Reach connector.

The radio features are:

• Radio broadcast reception services: AM, FM, DAB
• FM antenna input for FM phase diversity (2nd FM antenna external)
• Telematics and data connection via mobile networks (2G, 3G, 4G)
• Wi-Fi hotspot
• Emergency and Assistance Call Management
• GNSS Position (GPS, GLONASS, Galileo, Beidou)

The non-radio features are:

• SW Update (via mobile networks)
• Cyber security
• Vehicle data storage

Diagram: Overview of the main functions of the BSRF in the vehicle

The diagram shows a car with various connectivity links. Cloud services (Broadcast and Multicast) are depicted at the top, connecting to the car via 'TELEMATIC LINKS' and 'CONNECTIVITY LINKS'. The car itself shows internal components like 'H.U.' (Head Unit), 'GTW' (Gateway), and 'Ethernet'. Mobile devices are shown connected via Wi-Fi. Logos for RNT, AM FM RADIO, Digital Radio, GNSS, 4G/LTE, and eCall are visible, representing the services offered.

Diagram: BSRF System Architecture

The system architecture diagram illustrates the BSRF module at the center. It connects to various components: AM/FM DAB antennas, GNSS antenna, and a cloud icon representing 4G/3G/2G and Call services. The BSRF also connects to Wi-Fi (AP and STA) and has a Backup Battery. External connections include a Gateway, IVI (AIDA), VSM, and interfaces for Head Unit (HMI), MIC in/out, eCall speaker, and A-call & E-call button with status LED. Lines indicate signal types: Analog/digital signal and RF signal. Connections are labeled as CAN HS and Ethernet. A note indicates 'Body controller module'.

4. Product Variants

4.1 Model Names

Diagram: BSRF Diversity Variants – NEA 2020 & AEE 2010

This section displays flags and descriptions for different regional variants: High Europe, Mid Europe, High Russia, High Turkey, High China, High Japan, and High Rest Of The World. Each variant specifies the NAD model, Region/Carrier, number of tuners, DAB support, FM range, and SVT status. For example, High Europe has NAD: BL28EU-RD1, MNO: ORANGE, eCall: PE112, 4 tuners, DAB on, FM range: 88-108 MHz, and SVT full. Mid Europe is similar but has 'SVT Light - No Accelerometer'. High China has NAD: BL28CN-RD1, MNO: CN UNICOM, eCall: N.A, 2 tuners, DAB off, FM range: 88-108 MHz, and SVT full. High Rest Of The World has NAD: BL28RW-001, MNO: ORANGE, eCall: PE112, 4 tuners, DAB on, FM range: 76-108 MHz, and SVT full.

The Europe HIGH and Europe MID variants share the same PCB, Housing, External connectors, and Shark fin antennas & internal antennas. The only difference is that the Europe MID variant lacks an accelerometer.

Differences between other variants include:

• NAD module (different band configurations)
• Country-specific MFF2 SIM card profile or specific SIM
• China, ROW, and Japan variants without DAB
• Number of broadcast tuners

4.2 Variants and Features Table

This table provides a detailed comparison of features across different product variants (MID EU, HIGH EU, HIGH Russia, HIGH CN, HIGH ROW, HIGH JAPAN, Turkey). It covers aspects like Geographical Zone, NAD, EUICC, FM/AM/DAB Antenna supply, FM/AM amplifier, DAB amplifier, Japan Broadcast bands, Wi-Fi/BT, Internal back-up antenna, Ethernet BroadReach, H-MTD, Accelerometer, NAND, eMMC, SDARS module, Stacked patch antenna, HD Radio, Specific main PCB for Active antenna, Antenna PCBs, Button/Led interface, Power Amp, AirBag interface, Microphone Interface, Digital TV, FM/AM/DAB Internal Antenna, LTE Antenna, CAN HS, GNSS, and RAM DDR. 'X' indicates presence, '-' indicates absence, and specific details are provided in text or numbers where applicable.

5. Hardware Description

5.1 Block Diagram

Diagram: BSRF Block Diagram

The block diagram shows the BSRF unit with a 'Shark Fin' housing containing LTE 1, LTE 2, GNSS, and AM/FM/DAB antennas. Internally, it includes a TCU (Telematics Control Unit) with eCall backup and Wi-Fi. A Backup Battery is connected to the TCU. The BSRF connects to external systems via interfaces for Head Unit (HMI), Gateway (Vehicle bus), MIC in/out, eCall speaker, and A-call & E-call Button + status LED + airbag + Wakeup. Signal types are indicated by colored lines: orange for Analog/digital signal and blue for RF signal.

5.2 Main Features

The BSRF is a combination of an Intelligent Antenna Module and a Telematics Control Unit (TCU). Key features include:

• Possibility for AM/FM and DAB reception with corresponding tuner processing.
• Embeds a 2G/3G/4G modem with internal GSM/WCDMA/LTE1 and internal LTE2 (Rx only) antennas.
• Has a backup cellular antenna (2G, 3G, 4G).
• Supports Emergency Call (eCall and ERA-GLONASS).
• Does not support VoLTE.
• Has a Backup Battery (BUB) to support eCall if the main vehicle battery is disconnected.
• Supports SVT (Stolen Vehicle Tracking).
• Supports GNSS (GPS/GLONASS/Galileo/Beidou) via an internal antenna.
• Supports Wi-Fi IEEE802.11 a/b/g/n/ac.
• Features one High Speed CAN driver for vehicle interoperability.
• Communicates with the Multimedia control unit through an Ethernet BroadR-Reach bus.
• Communicates with eCall MMI via wired signals.

5.3 Wired Interfaces

The external interface of the BSRF consists of:

1. Radio antenna connector (FM2)
2. BroadR-Reach connector (type HSD)
3. Main 20 pin connector (Tyco)
4. Backup Battery Connector

5.3.1 X3 HSD BroadR Reach Connector

Diagram: X3 HSD BroadR Reach Connector

An image shows the BroadR-Reach connector with two pins labeled 1 and 2. A table details the pin configuration: Pin 1 is 'BROADRR P1' (I/O), and Pin 2 is 'BROADRR M1' (I/O).

5.3.2 X4 Backup Battery Connector

Diagram: X4 Backup Battery Connector

An image shows the backup battery connector with two pins labeled 1 and 2. A table details the pin configuration: Pin 1 is 'VBUB' (I), and Pin 2 is 'GND' (I).

5.3.3 X12 Main Connector (Nano MQS 20 pin)

Diagrams: X12 Main Connector

Images display the 20-pin Nano MQS connector from different angles. A table lists the pin assignments, signal names, I/O direction, descriptions, current requirements, and electrical characteristics. Notable pins include CAN H/L, BUB_Supplier_Coding, Microphone In/Out, BUB_NTC_ADC, Wakeup, Power_GND, Airbag signal, SPK+/- (Loud Speaker), Red Led, +VBAT, Bcall Button, Ecall Button, and Green_Led.

5.3.4 X103 FM2 Antenna Connector

Diagram: FM Antenna Pinning Configuration

An image shows the FM2 antenna connector with pins labeled 1 and 2. A table details the pin configuration: Pin 1 is 'FM_ANT' (Type: -), providing a 12VDC output (Phantom Supply) and 100mA RF input. Pin 2 is 'GND'.

5.4 Operating Temperature Range

Operating temperature range: -40°C to +80°C. NAD operating temperature range complies with 3GPP specification: -10°C to +55°C.

5.5 Supply Voltage

Nominal Supply Voltage: 12 V DC. Supply Voltage Range: 8 V – 16 V DC.

5.6 Power Consumption

Typical current consumption is around 700mA (Tuner, NAD, Wi-Fi, GNSS on). Max continuous current estimated: 2A at 13V.

5.7 Maximum Humidity

40 °C, 93 % to be tested for 504 hours.

5.8 SIM Card

The BSRF uses a factory fitted embedded SIM Card (MFF2 with a carrier specific profile).

5.9 Backup Battery (BUB)

Diagram: Backup Battery (BUB)

An image shows a Lithium Ion battery labeled 'BSRF BUB'. It includes specifications like nominal voltage, charge voltage, end of discharge voltage, energy/capacity, maximum continuous charge current, and operating temperature ranges for charging and discharging. It also indicates the factory: TWS TECHNOLOGY (GUANGZHOU) LIMITED.

The BSRF features a Lithium Ion BUB with a 3-terminals fuse, a thermal sensor with capacitor, and active overvoltage protection. It can power the BSRF during Emergency or SVT states if the main vehicle battery is disconnected. The BUB is externally connected to the BSRF unit.

6. Wireless Services

6.1 NAD Module

The Continental NAD module is based on the MDM9628 SOC from Qualcomm, featuring a Cortex A7 core application processor and a modem for 2G, 3G, or 4G/LTE cellular networks. The NAD includes a GNSS receiver and controls WLAN. LTE, GNSS, and Wi-Fi antennas are directly connected to the NAD.

The NAD provides the following features:

• Audio Call: Incoming, outgoing for telematics services (eCall and Assistance Call).
• SMS: Data only for telematics services (eCall and Assistance Call).
• Packet Data: Data via 2G, 3G, and LTE for telematics services (eCall and Assistance Call).
• eCall: Europe, Russia, UAE.

The variants are realized via different component values according to the different bands:

The NAD module variants are assigned to the BSRF according to the following table:

6.2 Cellular Services BL28RW-001 NAD

6.2.1 2G/GSM

6.2.2 3G/UMTS

6.2.3 4G/LTE

6.3 GNSS Receiver

The GNSS receiver is included in the NAD. It is a multi-constellation compatible receiver implementing GPS, GLONASS, Galileo, and Beidou positioning systems. Positioning data is used for telematics services (eCall and Assistance Call). Positioning data is also provided to other control units and applications in the vehicle.

6.4 WLAN

The BSRF uses the Qualcomm Wi-Fi chipset QCA6564AU-3. 'AU' stands for automotive grade. '-3' stands for SDIO 3.0 interface for WLAN part control.

6.4.1 WLAN RF Parameters

6.4.2 WLAN Supported Bands per Variants

Diagram: WIFI 2.4 GHz and WIFI 5 GHz Bands per Variants

The table shows supported Wi-Fi bands for different variants (EU, RU, CN, RW, JP). For 2.4 GHz, all variants support channels CH1-CH13 (2400–2483.5 MHz). For 5 GHz, the EU and RW variants support 5150-5250 MHz (UNII-1) with restrictions for indoor/vehicle usage. The RU variant has indoor restriction for UNII-1. CN variant is not supported for UNII-1. For 5725-5850 MHz (UNII-3), EU, RU, CN, and RW variants are supported, while JP is not allowed.

6.5 Radio Broadcast Receiver

Radio reception is used by other control units in the vehicle, e.g., the Head Unit. The Broadcast RF signals are demodulated inside the BSRF, and the content (audio/data) is provided in digital format to the vehicle gateway.

6.5.1 Frequency Range for Europe:

AM (LW/MW): 148.5 kHz – 283.5 kHz / 526.5 kHz – 1 606.5 kHz
FM: 87.5 MHz – 108 MHz
DAB Band-III: 174 MHz – 240 MHz

Via telecoding, the OEM will set the correct frequencies of operation in every other country.

7. Mechanical Design

7.1 Product Picture

Diagrams: Product Views

Images display the BSRF unit from top, right side, left side, and bottom views. The top view shows the shark fin antenna integrated with the base unit. The side views highlight the aerodynamic shape of the antenna. The bottom view reveals the internal components, connectors, and mounting points, including the PSA GROUPE logo and material information (>PP GF-20<).

7.2 Product Dimension

207.6 x 200.25 x 83.7mm

7.3 Product Weight

Approximately 0.62 kg

7.4 Mechanical Mounting Concept

7.4.1 Mounting Position

The BSRF will be mounted on the back of the roof. The passenger's head can be less than 20cm from the internal antennas on the main PCB (Wi-Fi and backup antennas for eCall). All other antennas are above the roof line.

Diagram: Position of the BSRF on the vehicle roof (top view)

An illustration shows the top view of a car roof with the BSRF positioned towards the rear.

Diagram: Position of the BSRF on the vehicle roof (side view)

An illustration shows a side view of a car roof with the BSRF mounted underneath. The text indicates that the BSRF is mounted under the car roof and screwed to the design cover. The integrated antennas are above the car roof and protected by the design cover. Two smaller diagrams illustrate the car roof with the design cover and the BSRF unit.

7.4.2 Product Assembly

Diagram: Product Assembly Exploded View

An exploded view diagram shows the BSRF unit disassembled into its various components, illustrating how they fit together.

7.5 Antenna Concept

Diagram: Antenna Concept

An illustration shows the BSRF unit with its protection cover assembled. Labels indicate the different antennas: AM/FM/DAB antennas are shown at the top. LTE 2 and LTE 1 antennas are positioned internally. GNSS antenna is also visible. The underside of the unit is labeled 'Wi-Fi and eCall Backup antenna'.

8. User Manual and Packaging Statements - Europe

A table lists European countries (BE, BG, CZ, DK, DE, EE, EL, ES, FR, HR, HU, IE, IT, CY, LT, LU, LV, MT, NL, PL, PT, RO, SE, SK, SI, UK).

8.1 Specific Absorption Rate (SAR) and RF exposure evaluation (MPE)

Max. Simultaneous Transmission SAR10g = XX W/kg

The SAR10g limit (2.0 W/kg for Body) for general population/uncontrolled exposure is specified in Council Recommendation 1999/519/EC Annex II.

A minimum separation distance of 10mm between the user or bystander and the internal antennas (located on the bottom part of the BSRF inside the passenger compartment of the car) shall be ensured during normal operation.

A minimum separation distance of 20cm between the user or bystander and the external antennas (located on the top of the BSRF outside of the car) shall be ensured during normal operation.

8.2 Wi-Fi 5150 – 5250 MHz Restriction

The band 5150 - 5250 MHz is restricted to indoor or vehicle usage in Europe.

8.3 Safety Relevant Statements

Warning Symbol: An exclamation mark inside a triangle.

All connected wiring shall be adequate according to the equipment's ratings and flammability requirements of standard EN 62368-1.