DE102008063657A1 - Method for operating Bluetooth device i.e. handsfree set in motor vehicle, involves regulating Bluetooth functions on serial port profile by remote devicelist protocol between telephony client device and accessory phone device - Google Patents

Abstract

The method involves using multiple standard- Bluetoothprofiles e.g. handsfree profile (HFP), phonebook access profile (PBAP), message access profile (MAP) and serial port profile (SPP), for communicating over a point-to-point connection. Bluetoothfunctions are regulated on the SPP by a remote devicelist protocol (RDP) between a telephony client device i.e. mobile hand set (H) and an accessory phone device (APD) e.g. head unit (HU). The Bluetoothfunctions exceed above operational range of the standard- Bluetoothprofiles.

Description

The The invention relates to methods for operating wireless Bluetooth devices in a motor vehicle according to the preamble of claim 1.

in the Automotive area standard Bluetooth profiles are used to Phone features accessible via Bluetooth connections close. These standard Bluetooth profiles allow a standardized Access to features such as telephony, address book and messages (SMS). To flexible extensions of the vehicle telephone system too it is desirable to use these functions by means of additional telephone devices, such as cordless Make handheld devices remotely available. In this case, access to the standard functions can continue using the standard Bluetooth profiles. An additional However, protocol is required to provide maintenance and device selection capabilities to provide.

From the DE 10 2004 049 933 A1 a device is known, comprising a mobile phone, which is operable in a mobile network of a mobile service provider, further comprising a Bluetooth adapter, which allows communication of the mobile phone with at least one other Bluetooth-enabled device such as a hands-free device in a vehicle. In this case, the function and / or the functional scope of the Bluetooth adapter can be controlled by the mobile service provider via the mobile radio network by means of the mobile telephone.

It It is an object of the invention to provide an improved method of operation specify wireless Bluetooth devices in a motor vehicle.

The The object is achieved by a method having the features of claim 1.

advantageous Further developments are the subject of the dependent claims.

at a method of operation according to the invention wireless bluetooth devices in a motor vehicle over A point-to-point connection is used to communicate between one Telephony client device (for example, a central control unit / head unit) and a remote telephone device via the point-to-point connection has a number of standard Bluetooth profiles used. The number of standard Bluetooth profiles will be one serial channel profile used on the over the standard Bluetooth profiles Beyond Bluetooth functions using a proprietary Protocol between the telephony client device and the remote Telephone device are provided.

The Remote phone is a device that is remote Telephone services over the standard Bluetooth protocols offers. The telephony client device is a device that Telephone services of the remote telephone over uses the standard Bluetooth profiles. The telephony client device has a user interface as well as an audio input and a Audio output on.

• – Freisprech-Profil (HFP – hands free profile): Alle Ruf-Behandlungs-Funktionen. Zur Sicherstellung von Notruf-Funktionen kann eine Verbindung des HFP-Profils immer ermöglicht werden. Außer für Notrufe wird das HFP-Profil nur verbunden, während das entfernte Telefongerät (RPD) mit einem Mobiltelefon verbunden ist.
• – Telefonbuch-Zugangs-Profil (PBAP – phonebook access profile): Das Telefonbuch-Zugangs-Profil dient dem Zugang zu einem Telefonbuch und zu Anruflisten des Mobiltelefons, das mit dem entfernten Telefongerät RPD verbunden ist. Auf diese Weise können beispielsweise Einträge aus dem Telefonbuch in einem Display der Head-Unit dargestellt und von einem Nutzer ausgewählt werden. Das Telefonbuch-Zugangs-Profil PBAP wird nur verbunden, wenn das entfernte Telefongerät RPD mit einem Mobiltelefon verbunden ist.
• – Nachrichten-Zugangs-Profil (MAP – message access profile): wird benutzt, um Zugriff auf gespeicherte Nachrichten (SMS) auf dem Mobiltelefon zu ermöglichen oder Nachrichten über das Mobiltelefon zu versenden. Zur Sicherstellung erweiterter Notfall-Funktionalität kann das Verbinden des Nachrichten-Zugangs-Profils immer ermöglicht werden. Außer für Notrufe ist das Nachrichten-Zugangs-Profil immer verbunden, wenn das entfernte Telefongerät RPD mit einem Mobiltelefon verbunden ist.
• – serielles Kanal-Profil (SPP – serial port profile)
• – Dienst-Ermittlungs-Profil (SDP – service discovery profile)

The standard Bluetooth profiles include:

• - Hands free profile (HFP - hands free profile): All call handling features. To ensure emergency call functions, it is always possible to connect the HFP profile. Except for emergency calls, the HFP profile is only connected while the remote telephone device (RPD) is connected to a mobile phone.
• - Phonebook access profile (PBAP): The phonebook access profile is used to access a phonebook and call lists of the mobile phone connected to the remote telephone device RPD. In this way, for example, entries from the telephone book can be displayed in a display of the head unit and selected by a user. The phonebook access profile PBAP is connected only when the remote telephone device RPD is connected to a mobile phone.
• - Message access profile (MAP): used to allow access to stored messages (SMS) on the mobile phone or to send messages via the mobile phone. To ensure advanced emergency functionality, connecting the message access profile can always be enabled. Except for emergency calls, the message access profile is always connected when the remote telephone device RPD is connected to a mobile phone.
• - Serial port profile (SPP)
• Service discovery profile (SDP)

Advantageous when using the proprietary protocol on the serial channel profile is that accessory products, for example Mobile phones, cordless handsets with reduced effort proprietary can be connected. This way a selection can be made supplier of a vehicle-telephone system more flexible This is because the supplier only includes the standard Bluetooth profiles of the serial profile SPP needs to provide while the proprietary protocol from the manufacturer of the vehicle can be supplemented.

The following are exemplary embodiments of the invention explained in more detail with reference to drawings.

there demonstrate:

1 a Bluetooth system in a vehicle having a central control unit, a remote telephone set and a mobile telephone, and

2 a Bluetooth system in a vehicle with a central control unit, a mobile handset and a mobile phone.

In 1 a Bluetooth system for a vehicle is shown. It comprises a head unit HU, which has a user interface and is used as a telephony client device TCD. A remote telephone device RPD is configured as an additional telephone device APD and communicates with the telephony client device TCD via a point-to-point connection by means of a number of standard Bluetooth profiles HFP, PBAP, MAP, SPP. The remote telephone device RPD provides a mobile phone M via Bluetooth with a SIM access profile SAP. On the serial channel profile SPP, Bluetooth functions beyond the standard Bluetooth profiles are provided by means of a proprietary protocol RDP between the telephony client device TCD and the remote telephone device RPD.

With the additional telephone device APD is a device meant that can be purchased and installed separately. It deals is about a device that has additional phone adaptations over the standard Bluetooth profiles, by the central control unit HU supports, provides.

In 2 another embodiment of the Bluetooth system is shown. It comprises a central control unit (head unit) HU, which is used as a remote telephone device RPD. A mobile handset H serves as a telephony client device TCD and communicates with the remote telephone set RPD via a point-to-point connection using a number of standard Bluetooth profiles HFP, PBAP, MAP, SPP. The remote telephone device RPD provides the Bluetooth standard profiles HFP, PBAP, MAP to a mobile phone M via Bluetooth. On the serial channel profile SPP, Bluetooth functions beyond the standard Bluetooth profiles are provided by means of a proprietary protocol RDP between the telephony client device TCD and the remote telephone device RPD.

Instead of of the mobile handset H, for example Also be provided a headset or a room microphone. As well can use several mobile handsets or mobile phones M be provided.

The In particular, RDP's proprietary protocol provides features ready for device selection and maintenance.

The remote telephone device RPD with its own user interface, for example, input and output devices of the central control unit HU as in 2 can be unlocked or blocked, depending on which user interface settings are selected.

A remote telephone device RPD without a user interface, for example the additional telephone device APD (accessory phone device) as in 1 can enable or block its phone functions depending on the presence of a serial port profile (SPP) connection to the telephony client device (TCD).

This means that the establishment of a SPP connection phone functions unlocks while turning off the SPP connection Phone functions blocked.

After this the phone features have been unlocked can the additional Phone device APD a proprietary strategy that is called the proprietary protocol RDP use to to connect the last connected mobile phones M again. After a Mobile phone M is successfully reconnected it may be the telephony client device Notify TCD about the connection.

A Connection to the remote phone RPD can always Start by making the telephony client device TCD an SPP connection builds. The telephony client device TCD can then use a Download the list of remote devices and click on the notification to connect to a mobile phone M wait. While of waiting, the telephony client device TCD can also enter certain mobile phone M for a reconnection attempt choose.

After this the remote telephone device RPD connects to one Mobile phone M has communicated to the telephony client device TCD the other default Bluetooth phone profiles, such as HFP, PBAP, MAP connect. The SPP connection can be used for Status updates from the remote phone RPD stay active.

After the remote telephone device RPD has informed the disconnection of a mobile telephone M, the telephony client device TCD can switch off the standard telephone-related Bluetooth profiles, such as HFP, PBAP, MAP. The SPP connection may request status updates from the remote phone device RPD always stay active.

Before the telephony client device TCD shuts down all standard telephone Bluetooth profiles, such as HFP, PBAP, MAP shut down. Subsequently, the SPP connection off. For a remote telephone device RPD without a user interface means deactivation the telephone services and thus the switching off of existing connections from the remote telephone device RPD to the mobile phone M.

The remote telephone device RPD can be operated without that there is a possibility of the device list to change. In this case, the remote telephone device shares RPD just a static device list with.

The static device list contains one or more Entries connected using a + RCON command or can be disconnected, but without any services authorized or denied or a query performed can be. This feature can only be used to operate a SIM card of an SAP module.

It Additional standard Bluetooth profiles may be provided for example, a dial-up network profile / personal area network profile DUN / PAN connected only when the remote phone device RPD is connected to the mobile phone M.

APD

additional Telephone device (accessory phone device)

H

mobile handset

HFP

Handsfree Profile (handsfree profile)

HU

central Control unit (head unit)

M

mobile phone

MAP

Message Access Profile (message access profile)

PBAP

Phone Book Access Profile (phonebook access profile)

RDP

proprietary Protocol (remote devicelist protocol)

RPD

distant Telephone device (remote phone device)

SAP

SIM Access profile (SIM access profile)

SDP

Service-Discovery Profile (service discovery profile)

SIM

Teinehmer identity module (subscriber identity module)

SPP

serial Channel profile (serial port profile)

TCD

Telephony client device (telephony client device), Head Unit

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102004049933 A1 [0003]

Claims (4)

A method of operating Bluetooth wireless devices in a motor vehicle over a point-to-point connection using a number of standard Bluetooth profiles (HFP, PBAP, MAP, SPP) for communication over the point-to-point connection is characterized in that from the number of standard Bluetooth profiles (HFP, PBAP, MAP, SPP), a serial channel profile (SPP) is used, on which a functional scope of the standard Bluetooth profiles (HFP, PBAP Bluetooth (MAP, SPP) functions are provided by means of a proprietary protocol (RDP) between a telephony client device (TCD) and a remote telephone device (RPD). Method according to claim 1, characterized in that that the proprietary protocol (RDP) features device selection and provides for maintenance. Method according to one of claims 1 or 2, characterized in that the telephony client device (TCD) as a central control unit (HU) with a user interface is formed and that the remote telephone device (RPD) formed as an additional telephone device (APD) is and a mobile phone (M) at least one SIM access profile (SAP). Method according to one of claims 1 or 2, characterized in that the telephony client device (TCD) is designed as a mobile handset (H) and that the remote telephone device (RPD) as a central Control unit (HU) is formed.