Method for operating a radio transceiver

Abstract

The invention relates to a method for operating a radio transceiver (10, 12), the radio transceiver receiving station signals of a transmitting station (14) transmitted via a communication channel (16, 18, 20, 22) and transmitting station signals selected from the station signals, wherein the method comprises the following steps: - determining a communication channel (16, 18, 20, 22) for a corresponding station signal of the station signals, transmitting the corresponding station signal of the station signals via the communication channel, - obtaining reception performance for the determined communication channel (16, 18, 20, 22), - obtaining position data of the radio transceiver (10, 12), - associating the position data with the reception performance obtained with respect to the determined communication channel (16, 18, 20, 22), wherein a position-dependent reception data record is determined for at least one of the station signals, and - transmitting at least one position-dependent reception data record to a server device (24) for storing the at least one position-dependent reception data record in a retrievable manner by the server device (24).

Description

Technical Field

[0001] The present invention relates to a method for operating a radio transceiver, which receives a station signal of a transmitting station transmitted via a communication channel and transmits a station signal selected from the station signals. In addition, the present invention also relates to a method for operating a server device. In addition, the present invention relates to a radio transceiver, which is configured to receive a station signal of a transmitting station transmitted via a communication channel and transmit a station signal selected from the station signals. In addition, the present invention also relates to a motor vehicle having a radio transceiver. Finally, the present invention also relates to a server device. Background Art

[0002] Radio transceivers, in particular broadcast radio transceivers, are known in the prior art in a wide variety of designs, so that no particular reference to publications is necessary for this purpose. Radio transceivers are used to receive at least one station signal which is sent unidirectionally from a transmitting station in order to determine therefrom data or information which can be sent to a user of the radio transceiver. For this purpose, the user can preferably select the station signal of the transmitting station for transmission on the radio transceiver, for example by correspondingly adjusting the radio transceiver to the broadcast radio channel for the selected station signal.

[0003] The corresponding transmitting station provides information or data by means of a station signal, which is then transmitted via a predetermined communication channel. In a radio broadcast station, this can be achieved by a radio broadcast transmitter, which provides at least one corresponding radio channel for transmitting the station signal. Accordingly, radio broadcasting is in particular a one-way transmission of information or data from a radio broadcast station to a radio broadcast receiver using a station signal. In radio broadcasting, information transmission in the opposite direction is usually not provided. Of course, the station signal of the transmitting station is not only used to transmit information or data in the form of video, audio and / or the like, that is to say, for example, television or radio.

[0004] In particular when receiving audio in a mobile manner with the aid of an audio radio receiver (also colloquially referred to as a "radio"), but sometimes also when receiving audio in a stationary manner with the aid of a radio transceiver, the problem may arise that the station signal of the transmitting station selected by the user is only received imperfectly, for example with interference, via the communication channel set on the radio transceiver. The user may then try to improve the reception by changing the setting in the radio or selecting another communication channel, for example another radio channel. Modern radio transceivers, in particular car radios, may also have an automatic switching concept in which, in order to improve the reception, the car radio, or more precisely the audio radio receiver, is automatically switched from a first radio channel to a second radio channel, both of which transmit the same station signal.

[0005] Nevertheless, the problem may arise that the transmission of the station signal is disturbed, for example because the radio transceiver first searches for the receivable communication channels to determine via which of the receivable communication channels the desired or selected station signal among the station signals can be reliably received. For this purpose, a certain period of time is usually required, during which the transmission of the station signal is disturbed and / or may also be interrupted.

[0006] A method for receiving radio broadcast signals in a vehicle and a radio broadcast transceiver are known from patent document DE 10 2014 226 142 A1. Radio broadcast radio reception can be improved by using diversity. For this purpose, patent document DE 10 2014 226 142 A1 addresses the question of how a more effective association of reception paths with a player can be achieved. To this end, the speed of the vehicle in which the radio broadcast transceiver is located is to be determined, wherein the number of reception paths to be used for radio broadcast reception is to be preset as a function of the speed of the vehicle.

[0007] Furthermore, patent document US 2011 / 0167016 A1 discloses a method for analyzing radio usage based on a map. Finally, patent document WO 03 / 049339 A2 discloses a system and method for determining listening statistics of a vehicle radio with surface coverage.

[0008] In the mobile sector, it has proven to be disadvantageous that reception can still be disturbed when using automatic switching of radio broadcast channels. Although special techniques for "soft" switching are known in the prior art, it is not possible to completely prevent temporary significant interference, especially when the radio transceiver is in motion. Finally, it should be noted that the switching itself can lead to interference in the transmission of the station signal, especially when switching occurs frequently. Summary of the invention

[0009] The object of the invention is to improve the reception and transmission of selected station signals.

[0010] As a solution, the invention proposes a method for operating a transceiver device, a method for operating a server device, a transceiver device, and a motor vehicle having a transceiver device and a server device according to the independent claims.

[0011] Advantageous developments result from the features of the dependent claims.

[0012] Regarding the method for operating a radio transceiver, according to a first aspect, the radio transceiver receives a station signal of a transmitting station transmitted via a communication channel and transmits a station signal selected from the station signals, wherein the method comprises the following steps:

[0013] - determining a communication channel for a respective one of the station signals, over which the respective one of the station signals is transmitted, and

[0014] - obtaining reception performance for the determined communication channel,

[0015] In particular, it is proposed that the method comprises the further steps of:

[0016] - obtain the location data of the radio transceiver,

[0017] - associating the position data with the reception performance obtained with respect to the determined communication channel, wherein a position-dependent reception data record is determined for at least one of the station signals, and

[0018] - transmitting the at least one location-dependent reception data record to the server device in order to store the at least one location-dependent reception data record in a retrievable manner by the server device.

[0019] Regarding a method for operating a radio transceiver, according to a second aspect, the radio transceiver receives a station signal of a transmitting station transmitted via a communication channel and transmits a station signal selected from the station signals. In particular, it is proposed that the method includes the steps of: determining position data of the radio transceiver; transmitting at least the position data and data about the station signal selected from the station signals to a server device that stores position-related reception data records in a retrievable manner; as a response to the data transmitted to the server device, the radio transceiver receives a position-related reception data record for the station signal selected from the station signal based on the position data; and in order to receive and transmit the station signal selected from the station signal, the radio transceiver adjusts to the communication channel based on the received position-related reception data record.

[0020] Regarding a method for operating a radio transceiver, according to a second aspect, the radio transceiver receives a station signal of a transmitting station transmitted via a communication channel and transmits a station signal selected from the station signals. In addition, it is particularly proposed that the method includes the steps of: determining position data of the radio transceiver; transmitting at least the position data and data about the station signal selected from the station signal to a server device that stores a reception data record related to the position in a retrievable manner; as a response to the data transmitted to the server device, the radio transceiver receives identification data about a communication channel with optimal reception performance determined by the server device; and in order to receive and send the station signal selected from the station signal, the radio transceiver adjusts to the communication channel according to the identification data.

[0021] Regarding the method for operating a server device, according to the second aspect, it is particularly proposed that a position-related reception data record transmitted by a radio transceiver device (the position-related reception data record contains at least the position data of the radio transceiver device and the reception performance with respect to the station signal of a transmitting station transmitted via a communication channel) is received by the server device and stored in a retrievable manner, wherein the server device receives at least the position data and data about a station signal selected from the slave station signals from the corresponding transceiver device, determines a position-related reception data record for the station signal selected from the slave station signals based on the position data and the data about the station signal selected from the slave station signals, and transmits the position-related reception data record to the transceiver device.

[0022] Regarding the method for operating a server device, according to the second aspect, it is particularly proposed that a position-related reception data record transmitted by a radio transceiver device (the position-related reception data record contains at least the position data of the radio transceiver device and the reception performance with respect to the station signal of the transmitting station transmitted via the communication channel) is received by the server device and stored in a retrievable manner, wherein the server device receives at least the position data and data about the station signal selected from the station signals from the corresponding transceiver device, determines a communication channel with the best reception performance among the communication channels based on the position data and the data about the station signal selected from the station signals, and transmits identification data about the communication channel with the best reception performance to the transceiver device.

[0023] With regard to a radio transceiver of this type, according to a first aspect, it is proposed in particular that the radio transceiver is also configured as follows:

[0024] - determining a communication channel for a respective one of the station signals, through which the respective one of the station signals is transmitted,

[0025] - obtaining reception performance of the determined communication channel,

[0026] - obtain the location data of the radio transceiver,

[0027] - associating the position data with the reception performance obtained with respect to the determined communication channel in order to determine a position-dependent reception data record for at least one of the station signals,

[0028] - transmitting the at least one location-dependent reception data record to a server device.

[0029] With regard to this type of radio transceiver device, according to a second aspect, it is particularly proposed that the radio transceiver device is constructed to: determine position data of the radio transceiver device; transmit at least the position data and data about a station signal selected from the station signals to a server device that stores reception data records related to the position in a retrievable manner; receive identification data for a communication channel with optimal reception performance determined by the server device as a response to the data transmitted to the server device; and in order to receive and send the station signal selected from the station signals, the radio transceiver device adjusts to the communication channel according to the identification data.

[0030] With regard to a motor vehicle of this type, it is proposed in particular that the transceiver device is designed according to the invention.

[0031] Regarding the server device, according to the second aspect, it is particularly proposed that the server device is configured to receive and store in a retrievable manner a position-related reception data record transmitted by a radio transceiver device, the position-related reception data record containing at least the position data of the radio transceiver device and the reception performance with respect to the station signal of the transmitting station transmitted via the communication channel, wherein the server device is also configured to receive at least the position data and data about the station signal selected from the station signals from the corresponding radio transceiver device, determine a position-related reception data record for the station signal selected from the station signals based on the position data and the data about the station signal selected from the station signals, and transmit the position-related reception data record to the radio transceiver device.

[0032] Regarding the server device, according to the second aspect, it is furthermore particularly proposed that the server device is configured to receive and store in a retrievable manner a position-related reception data record transmitted by a radio transceiver device, wherein the position-related reception data record contains at least the position data of the radio transceiver device and the reception performance with respect to the station signal of the transmitting station transmitted via the communication channel, wherein the server device is also configured to receive at least the position data and data about the station signal selected from the station signals from the corresponding radio transceiver device, determine a communication channel with the best reception performance among the communication channels based on the position data and the data about the station signal selected from the station signals, and transmit identification data about the communication channel with the best reception performance to the radio transceiver device.

[0033] The invention is based in particular on the idea that by centrally collecting data on location-dependent reception performance, data can be collected at least from the transceivers and data can be made available which can be transmitted upon request to the respective transceivers so that the transceivers can determine and adjust to a suitable communication channel for receiving and transmitting the selected station signals almost without delay based on the data, in particular the identification data. The transceivers thus do not have to determine themselves a suitable communication channel, more precisely a communication channel with the best reception performance for their current location, for example by scanning all communication channels.

[0034] The invention preferably comprises two aspects, wherein the first aspect is to collect, store centrally in a retrievable manner and provide the required data. The second aspect is to make the collected and centrally stored in a retrievable manner available for the specific use of the corresponding transceiver. Thus, the first aspect is to determine or collect the corresponding location-dependent reception data records, whereas the second aspect relates to the use of these data records. In this case, the invention is particularly suitable for the case where, according to the first aspect, location-dependent reception data records are determined and transmitted to a server device by a plurality of transceivers, wherein location-dependent reception data records for as many different location data as possible should be obtained. As a result, it can be achieved in particular that, in particular, mobile transceivers can be adjusted very quickly to a correspondingly suitable communication channel in terms of the station signals to be transmitted, so that interference and / or interruptions when transmitting the station signals selected from the station signals can be reduced. Thus, the invention makes it possible, for example, by the server device to provide a comprehensive database on location-dependent reception performance, which is not only established and can be further improved by a large number of transceivers, but also, for example, by a corresponding large amount of data, to ensure a high quality in terms of the identification data transmitted to the corresponding transceiver for use.

[0035] Radio broadcasting in the present invention means one-way communication between communication partners, here a radio broadcasting station and a radio broadcasting transceiver, wherein, for example, only communication from one of the communication partners to another of the communication partners is realized. Of course, the corresponding radio broadcasting station can also use more than one radio broadcasting transmitter for sending its station signal or radio broadcasting station signal by means of a communication channel (in this case a radio channel). The one or more radio broadcasting signals can be received by at least one radio broadcasting transceiver. Radio broadcasting is usually wireless and is characterized in that electromagnetic waves are often used as a medium for radio broadcasting signals. However, radio broadcasting can also include, for example, streaming media through, in particular, digital communication networks, which at least partially use radio for signal transmission. Therefore, the communication channel is at least partially implemented as wireless.

[0036] Preferably, the communication channel is designed for wireless communication and is preferably based on radio transmission, for example using electromagnetic waves. The communication channel can be, for example, a radio channel for radio broadcast transmission.

[0037] However, the communication channel can also be at least partially a digital communication channel, for example a wireless communication network, such as GSM, UMTS, LTE and / or the like. Although such communication channels in principle enable bidirectional communication, within the concept of the invention they are primarily used to transmit station signals only in a unidirectional direction. Therefore, such an application can also be referred to as a "stream" of station signals.

[0038] The station signal, more specifically the radio broadcast station signal, is preferably an information signal and can be, for example, a video signal, an audio signal, a data signal, a combination thereof, etc. The station signal is provided by a transmitter via a corresponding communication channel.

[0039] Transmitting stations, in particular also radio transmitters, are usually devices arranged in a fixed position or statically. However, they can also be mobile in individual cases.

[0040] It can be provided that the transmitting station provides a source coding and / or source modulation for the station signal transmitted by it, which allows a reconstruction of the information or data by the radio that is as complete and reliable as possible. For this purpose, the radio can be equipped with a suitable source decoding and / or source demodulation unit.

[0041] Furthermore, it can be provided that the station signal sent by the transmitting station is provided with a transmission station-specific modulation method and / or has a channel coding. This makes it possible to achieve a safe and interference-proof transmission of the station signal from the transmitting station to the radio transceiver. Accordingly, the radio transceiver can include suitable units for this purpose, such as a channel decoding unit and / or a demodulation unit that is matched to the modulation scheme of the transmitting station. For example, the modulation method can be amplitude modulation, frequency modulation, phase modulation, amplitude square modulation, and combinations thereof, etc.

[0042] With respect to the first aspect, the radio transceiver device acquires a communication channel in which, for example, a station signal selected from the station signals is transmitted. However, supplementally or alternatively, the radio transceiver device can also determine a communication channel in which a station signal of a transmitting station is transmitted, i.e., the station signal is not a station signal of the station signal selected from the station signals. It is thus possible to determine not only a communication channel for a station signal selected from the station signals, but also (as required) to determine a communication channel through which a station signal of a transmitting station other than the transmitting station selected from the transmitting stations is transmitted. This makes it possible to acquire reception performance for a plurality of the determined communication channels and make them available.

[0043] For this purpose, it is provided that the radio transceiver device acquires position data, more precisely preferably position data about its own, in particular current position. For this purpose, the radio transceiver device may include a GPS unit or a similar device. Furthermore, in particular when the radio transceiver device is arranged in a motor vehicle, it can be provided that the radio transceiver device is communicatively connected to a navigation device of the motor vehicle and that the current position data is determined from the navigation device. Position data corresponding to the position of the radio transceiver device when the reception performance for the determined communication channel is acquired are associated with the reception performance acquired with respect to the determined communication channel, so that a position-dependent reception data record is determined for at least one of the station signals. The reception data record thus comprises at least the position data and the reception performance, which the radio transceiver device acquired at the position as a function of the position data.

[0044] For this purpose, a location-dependent reception data record can be determined for a respective one of the station signals, the location-dependent reception data record comprising at least one communication channel. Of course, the reception data record can also comprise a plurality of communication channels for the same station signal. Furthermore, it is of course possible to provide a location-dependent reception data record individually for a respective one of the determined communication channels. Preferably, the respective reception data record also comprises data about the station signal transmitted via the respective communication channel.

[0045] Subsequently, the position-dependent reception data records determined in this way are transmitted to the server device. Here, the position-dependent reception data records are stored at least in a retrievable manner. For this purpose, the server device may include one or more storage units. The server device may be a central server device. However, in an alternative design, the server device may also be arranged in a distributed manner at multiple locations, for which purpose the server device includes individual server units at the corresponding locations that are communicatively connected to each other.

[0046] In addition, the server device may also include a computer unit, which allows evaluating the received data records related to the position, so as to determine such a communication channel for predetermined position data, that is, the communication channel provides the best reception performance of the outbound signal for the radio transceiver positioned on the position data. For example, the best reception performance may include receiving field strength, data transmission rate, modulation rate and / or the like. In addition, interference effects, such as jammers and the like, may also be considered, of course. The computer unit implements the determination of the selection function for the outbound signal at the determined position of the corresponding radio transceiver by means of a suitable computer program. Subsequently, for example, identification data can be assigned to the best communication channel determined in this way, and the identification data allows the identification of the communication channel by the transceiver. Thus, it is implemented for the radio transceiver to adjust to the corresponding communication channel according to the identification data.

[0047] The radio transceiver can obtain such communication channels, that is, in these communication channels, the station signal of the selected transmitting station is transmitted by means of its own communication channel. For this purpose, for example, the entire receiving range of the radio transceiver can be scanned in terms of all available communication channels. By scanning, it can be determined which communication channels contain signals that can be received for the station signal. In this way, such communication channels can be obtained, that is, the communication channel first completely transmits any receivable station signal. Subsequently, the received station signal can be analyzed according to channel-specific parameters. Channel-specific parameters can be, for example, selected channel coding, selected modulation mode, receiving field strength, receiving mode, identification of the transmitting station, station signal of the transmitting station transmitted by means of the communication channel, a combination thereof and / or the like. In this way, the radio transceiver can determine which station signal, especially the selected station signal, can be received through which communication channel.

[0048] The channel-specific parameters can be identical for a plurality of or also for all communication channels. However, the channel-specific parameters are usually related to the type of communication channel, for example, whether the communication channel is a radio channel provided for emitting radio broadcasts within the UKW or a radio channel provided by a mobile communication network, etc. By, for example, suitable demodulation and / or decoding, the station signals of a communication channel, preferably a fixed communication channel, which transmits the station signals of the selected transmitting station, are processed taking into account the corresponding channel-specific parameters. This achieves that the station signals are provided accordingly on the receiving side. Preferably, this is done in a channel-selective manner, that is, the processing is performed independently of other communication channels.

[0049] The communication channel is preferably an at least partly wireless communication channel, which is at least partly based on the use of radio.

[0050] A transmitting station is a device that transmits information or data, for example by radio broadcasting. For this purpose, the respective station signal of the respective transmitting station is processed according to the communication channel applied to the transmission of the station signal, for example by modulating and / or coding the respective station signal. Furthermore, other processing that improves the quality of the station signal may of course also be performed, especially on the receiver side. For this purpose, error-correcting coding or the like may be used.

[0051] The communication channel for the corresponding station signal of the station signals can be determined by correspondingly scanning the communication channels that can be received by means of the radio transceiver. The determination can be limited to the station signals selected from the station signals. Furthermore, of course, there is also the possibility that, in addition to the selected station signals, the determination also includes non-selected station signals. Finally, it can also be provided that the determination includes only non-selected station signals. If necessary, this can also be achieved by selecting the station signals, for example, a user of the radio transceiver or the like makes this selection.

[0052] The scanning of communication channels need not be restricted to communication channels of a certain type, such as radio broadcast channels. Therefore, other communication channels that can be used to receive corresponding station signals in the station signal (for example via a mobile communication network or similar communication network) can also be acquired during the scanning.

[0053] The reception performance can then be determined for the communication channel determined in this way. The reception performance can include modulation type, coding, modulation rate, received signal strength, standardized volume value, value for reception quality and / or the like. Furthermore, the reception performance can also include quality data on the communication channel, such as whether the communication channel is interfered with, etc. The radio transceiver can use the reception performance in particular for receiving and transmitting the station signal selected from the station signals with the highest possible quality.

[0054] The transmission of the station signal by the radio transceiver can be realized by means of an electrical signal, which is used for a player for reproducing the data or information. For example, the player can be an amplifier or a television set. However, it can also be provided that the radio transceiver itself transmits the station signal selected from the station signals to the user, for example acoustically, visually, etc. For this purpose, the radio transceiver can include a suitable transmission unit.

[0055] According to a first aspect, the position data of the radio transceiver device are acquired. For this purpose, it can be provided that the position data are input into the radio transceiver device by a user. Furthermore, it can also be provided that the radio transceiver device itself has a positioning unit, for example based on the use of GPS or the like, for determining the position data of the radio transceiver device itself as required. Furthermore, of course, especially when the radio transceiver device is arranged in a motor vehicle, there is the possibility that the radio transceiver device is connected to other devices of the motor vehicle that can provide a corresponding positioning function, such as a navigation device or the like.

[0056] The transceiver device has a control unit or an evaluation unit which correlates the acquired position data of the transceiver device with the acquired reception performance with respect to a specific communication channel. As a result, a position-dependent reception data record can be determined, for example, individually for each of the communication channels. However, it can also be provided that the reception data record is determined at least partially in a station signal-specific or even transmitting station-specific manner. Accordingly, the position-dependent reception data record can contain corresponding additional information.

[0057] The position-dependent reception data records determined in this way are then transmitted to the server device for storage by the server device in a retrievable manner. The reception data records can thus be used for a plurality of users or transceivers, so that the reception of station signals at the respective positions of the respective transceivers can be improved.

[0058] The transmission can be carried out continuously or also at preset times. For example, the transmission can be carried out when there is a bidirectional communication connection, in particular, between the radio transceiver and the server device. The bidirectional communication connection does not need to be permanently present, but can only be present temporarily, for example, in a mobile radio transceiver. During this period, the position-related reception data records determined by the radio transceiver can be stored intermediately until they are transmitted to the server device. Of course, in principle, there is also the possibility of also storing each of the determined position-related reception data records by the radio transceiver itself. As a result, the corresponding reception data records are used directly in the radio transceiver itself. However, the availability of the reception data records for other radio transceivers is limited by this.

[0059] The server device can be a computer unit, which includes a storage unit, which can include one or more hard disks, etc. The server device can be arranged at a central location and implemented in communication technology, for example, via a communication network, such as the Internet. For example, it can be provided that the radio transceiver device can be at least partially connected to the server device via a wireless radio connection (such as WLAN, etc.) and the Internet. However, the server device can also be arranged in a spatially distributed manner and include two or more computer devices with corresponding storage units, which are connected to each other in communication technology, for example, via a communication network (such as the Internet, etc.).

[0060] According to an advantageous improvement, it is proposed that the reception performance of the determined communication channel and the position data of the radio transceiver are acquired at least at at least one predetermined time. This makes it possible to clearly associate the position data with the determined reception performance in a simple manner, especially when the radio transceiver is arranged in a mobile manner, such as in a motor vehicle. This makes it possible to associate the current position of the radio transceiver with the currently acquired reception data. Of course, it can be provided that the reception data and the position data are continuously determined and associated. This makes it possible to determine a reception profile with respect to the position data, which enables good resolution even in the case of drastic changes in the reception performance in space over a short distance, which enables the radio transceiver to be purposefully adjusted to the corresponding reception channel associated with the position data according to its own movement, or to make a prediction, so that the reception of the selected station signal can also be significantly improved during the movement of the radio transceiver. This performance is particularly suitable for use in mountainous areas where the radio transceiver is carried, or in urban areas, especially in a group of buildings with high-rise buildings, because the reception of the wireless communication channel can be significantly affected by geographical restrictions.

[0061] In addition, it is proposed that the position data of the radio transceiver device is re-determined at at least one predetermined moment, and the method is repeated when the position data of the radio transceiver device changes. It is achieved that the radio transceiver device determines that it has moved, whereby the radio transceiver device reacquires the reception performance of the communication channel and associates it with the new position data. Of course, it can be provided that not only a predetermined moment is set for re-determining the position data of the radio transceiver device. It can further be provided that a plurality of moments are preset, such as moments spaced equidistantly, etc. In addition, of course, there is also the possibility of selecting the predetermined moments according to the movement of the radio transceiver device in the following manner, that is, for example, when the speed of the radio transceiver device is very fast, the moments that are shorter in time, on the contrary, when the speed of the radio transceiver device is slow, a correspondingly longer time interval is selected between the predetermined moments. For this purpose, the radio transceiver device can preferably continuously acquire the position data and determine the movement of the radio transceiver device therefrom. This can be achieved by the control unit of the radio transceiver device or also by the evaluation unit.

[0062] The control unit or evaluation unit of the radio transceiver is preferably an electronic hardware circuit which may include a program-controlled computer unit, or even be formed by it. The hardware circuit or the computer unit is designed to provide the desired functions of the radio transceiver in order to realize the functions of the present invention. If a computer unit is present, it can be provided that the functions are realized at least partially by a suitable computer program run by the computer unit.

[0063] According to an advantageous development, at least one of the station signals is received via at least two mutually different communication channels, difference data are determined at least in terms of the corresponding normalized volume and / or the relative time delay of the corresponding station signal, and the difference data are included in the position-dependent reception data record. This makes it possible to determine comparative data with respect to a communication channel that transmits a special station signal that can be a station signal selected from the station signals. This can be used to decide whether to use a single communication channel or also to use a plurality of communication channels together for transmitting the selected station signal. In addition, a switch between the communication channels can also be provided, specifically depending on which communication channel achieves the best reception performance. Preferably, this is provided for the station signal selected from the station signals. However, it is also possible to carry out the method for station signals that are not station signals selected from the station signals. This makes it possible to supplement the database provided by the server device with as many position-dependent reception data records as possible, so that a comprehensive database can be provided, which makes reception data records for a plurality of position data available. The reception data records can be retrieved from the server device as required by a corresponding radio transceiver.

[0064] According to a second aspect for operating a radio transceiver, it is provided that the radio transceiver determines position data. The position data and data about selected station signals from the station signals are transmitted to a server device, which (as explained above) stores position-dependent reception data records in a retrievable manner. The server device is designed to evaluate the position data and data about selected station signals from the station signals and, for example, to determine the communication channel with the best reception performance for the radio transceiver at the position of its transmission. Of course, it can also be provided that the server device only determines the corresponding position-dependent reception data record from the stored data record.

[0065] For this purpose, the server device comprises, for example, an evaluation unit, which may comprise a hardware circuit and / or a computer unit to determine the desired function. The best reception performance may be, for example, the maximum received signal strength, the maximum standardized volume value, the maximum modulation rate or the minimum interference of the corresponding communication channel. Of course, a combination thereof may also be provided. The evaluation unit of the server device determines, for example, the best communication channel for receiving the selected station signal according to a predetermined or weighted reception performance. The evaluation unit of the server device may assign identification data to the communication channel determined in this way, the identification data allowing the radio transceiver to identify and adjust the determined communication channel. The identification data is transmitted by the server device to the radio transceiver. Alternatively, the determined location-related reception data record may also be transmitted to the radio transceiver. The radio transceiver receives the identification data and subsequently adjusts the communication channel for receiving the station signal selected from the station signal according to the identification data or the received location-related reception data record. The transmission of the identification data may be carried out in the same manner as the transmission of the location data and the data about the station signal selected from the station signal to the server device, for example, via a two-way communication connection, such as a mobile communication network or the like.

[0066] It is preferably proposed that the transceiver device is arranged on a motor vehicle, wherein the motor vehicle is guided according to a travel route predetermined by a navigation device, and wherein position data of the transceiver device are determined according to the predetermined travel route. In this development, it is provided that the transceiver device can transmit position data not only about the current position but also for other future positions to the server device. This allows the server device to already determine in advance corresponding identification data or position-dependent reception data records for at least a part of the predetermined travel route and make them available, so that corresponding identification data or position-dependent reception data records are activated according to the respectively accessible position of the motor vehicle or the transceiver device, so that, for example, the respectively optimal communication channel can be used for the respectively accessible position. This can significantly improve the reception of the selected station signal.

[0067] The server device can be configured to receive and store position-dependent reception data records transmitted by the radio transceiver. The storage can be performed in such a way that the position-dependent reception data records can be at least partially retrieved from the server device by the radio transceiver. For this purpose, the server device receives at least the position data and data about the station signal selected from the station signals from the corresponding radio transceiver of the radio transceiver. In the simplest case, the control unit of the server device can then search for a suitable position-dependent reception data record in the storage unit of the server device based on the position data, and determine identification data about the best communication channel based on the position-dependent reception data record and transmit it to the radio transceiver. In the simplest case, the identification data can be a position-dependent reception data record about the determined position data and the transmitted selected station signal.

[0068] Furthermore, it is of course also possible that the server device performs data processing by means of its control unit or evaluation unit. This is particularly advantageous when a plurality of position-related reception data records have been transmitted for the position data of different radio transceivers. Here, the evaluation can be arranged to further process the reception performance determined for the same position data at possibly also different times for different radio transceivers. For example, when the reception performances differ from one another, the reception performances are averaged. Furthermore, other processing can also be carried out, in particular when using statistical evaluation methods. Furthermore, it can of course also be provided that the reception performance is weighted according to a certain time in order to be able to determine more accurate reception data. Other processing devices can be provided.

[0069] The identification data may for example represent a channel, an IP address when using a digital mobile radio network, etc. Thus, in this case, the radio transceiver does not need to provide signal processing capabilities to determine the best of the communication channels. This processing capability may be provided centrally by a server device.

[0070] The advantages and effects given for the method according to the invention can of course also be applied in the same way to the radio transceiver device according to the invention, the server device according to the invention and the motor vehicle according to the invention, and vice versa. Thus, method features can also be reduced to device features, or vice versa.

[0071] The present invention also includes such refinements of the method according to the invention that have the features already described in conjunction with the refinements of the motor vehicle according to the invention. For this reason, corresponding refinements of the method according to the invention are not described again here.

[0072] The motor vehicle according to the invention is preferably designed as a car, in particular a passenger car or a truck, or a bus or a motorcycle.

[0073] The invention also includes combinations of features of the described embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Next, embodiments of the present invention will be described.

[0075] in:

[0076] Figure 1 A schematic block diagram of a radio transmission system is shown, which has a radio broadcast station, a radio broadcast transmitter, a server device connected via a communication network, and two radio transceiver devices arranged in a motor vehicle (not shown in detail);

[0077] Figure 2 A schematic diagram of a motor vehicle is shown, wherein a radio transceiver of the motor vehicle receives a station signal of station A as a selected station signal;

[0078] Figure 3 Shown with Figure 2 The same schematic diagram, in which the station signal of station G is received by the radio transceiver of the motor vehicle;

[0079] Figure 4 Shown with Figure 2 The same schematic diagram, in which the radio transceiver of the motor vehicle receives the station signal of station C;

[0080] Figure 5 Shown Figures 2 to 4 A schematic diagram based on, in which a radio transceiver of the motor vehicle transmits a position-related reception data record to a server device;

[0081] Figure 6 A schematic block diagram is shown for determining a standardized volume value by a radio transceiver;

[0082] Figure 7 a schematic diagram showing volume values ​​of selected station signals received through different receiving channels; and

[0083] Figure 8 Shown according to Figure 7 A schematic diagram of the association of matching values. DETAILED DESCRIPTION

[0084] The embodiments explained below are preferred embodiments of the present invention. The components of the embodiments described in the embodiments represent the features of the present invention that are independent of each other, and these features also improve the present invention independently of each other. Therefore, the disclosure should also include combinations that are different from the feature combinations of the embodiments shown. In addition, the described embodiments can also be supplemented by other features in the features of the present invention that have been described.

[0085] In the figures, the same reference numerals respectively denote elements with the same function.

[0086] Figure 1 A schematic block diagram is shown of a method for improving the transmission of station signals 36, 38, 40 ( Figures 2 to 4 ) is the general structure of the reception of Figure 1 In the figure, one of the transmitting stations is shown by way of example with reference numeral 14. For example, by sending a station signal in the form of a radio broadcast by a communication channel 16, 18 in the form of a radio broadcast channel, the station signal transmission of the transmitting station 14 can be carried out by a station transmitter 26 in communication connection with the transmitting station 14. Often, the sending of such a radio broadcast is realized in the UKW range. In this case, the communication channels 16, 18 are formed by radio channels defined by corresponding frequency bands. However, the transmission of the station signal by radio broadcast is not limited to UKW (ultra-short wave), but of course can also be realized in other ranges suitable for radio broadcast, such as medium wave (MW), short wave (kW) and / or the like. According to the transmission performance of the corresponding communication channels 16, 18, 20, 22, it can be stipulated that the corresponding modulation and / or coding of the station signal is used to improve or realize the reliability and / or quality of the transmission.

[0087] Furthermore, for example, when using a mobile communication network such as GSM and / or the like, the station signal of the transmitting station 14 can also be sent in the form of a stream via a digital, at least partially wireless network. For this purpose, it is also conceivable to use a communication network such as WLAN, in particular the Internet and / or the like.

[0088] In this design, it is provided that the communication channels 20, 22 are communication channels of a mobile communication network, through which the flow of station signals of the transmitting station 14 can be realized. For this purpose, transceiver stations 30, 32 for GSM transmission are arranged at suitable locations, which allow radio transceivers in effective communication range, such as the radio transceiver 10, 12, to be communicatively connected to the corresponding transceiver stations 30, 32 via the communication channels 20, 22. In this case, the transceiver stations 30, 32 are connected to the Internet 28 in terms of communication technology. The Internet 28 is also connected to the transmitting station 14 in terms of communication technology.

[0089] Thereby, the flow of the station signal of the transmission station 14 can be realized.

[0090] exist Figure 1 Not shown, the radio transceiver devices 10, 12 are arranged on the corresponding motor vehicle, for example, on the motor vehicle 34 (see Figures 2 to 5). In this case, the radio transceiver device 10 , 12 is formed by a corresponding vehicle radio.

[0091] Each of the transceivers 10, 12 is designed to receive station signals via a communication channel, for example, communication channels 16, 18, 20, 22. For this purpose, each of the transceivers 10, 12 has a corresponding receiving unit (not shown). In addition, the transceivers 10, 12 are designed here so that the transceivers 10, 12 can receive at least station signals in a substantially identical manner via at least two radio channels. Preferably, it is provided that at least two radio channels are used to receive and transmit station signals selected from the station signals. In this case, the transmission is achieved by providing an electrical signal for controlling an audio amplifier, which transmits the corresponding station signal acoustically within the corresponding motor vehicle 34.

[0092] In this embodiment, it is provided that the transceiver devices 10, 12 are communicatively connected to a navigation device (not shown in detail) of the corresponding motor vehicle 34 and that corresponding position data about the current position of the motor vehicle 34 and thus the transceiver devices 10, 12 are transmitted from the navigation device. As a result, position data about the corresponding current position can be provided for each of the transceiver devices 10, 12. In an alternative embodiment, it can of course also be provided that the corresponding one of the transceiver devices 10, 12 includes a positioning unit, which enables the determination of the corresponding position data, for example, using GNSS, in particular GPS, etc. Of course, a combination thereof can also be provided.

[0093] In this refinement, it is provided that the radio transceiver devices 10, 12 determine a communication channel 16, 18, 20, 22 for a respective one of the station signals, via which the respective one of the station signals can be transmitted. Figure 2 In the design scheme, only a single transmitting station 14 is provided, and accordingly, the transmitting station sends a single station signal. However, this should not be limiting. Obviously, multiple transmitting stations can be provided, which at least each send a single station signal. In addition, it can of course be provided that the transmitting station 14 not only sends a single station signal, but also, for example, sends two or three station signals or even more station signals. For example, Southwest German Broadcasting (SWR) sends station signals SWR1, SWR2, SWR3, etc. as a transmitting station.

[0094] Preferably, a communication channel is determined for a station signal selected from the station signals of the transmitting station 14. However, the present invention is not limited thereto. In an alternative design, it can also be provided that a communication channel can also be determined for one or more station signals that are not selected from the station signals. Preferably, the radio transceiver devices 10, 12 are accordingly configured in an adjustable manner so that the desired radio function can be realized.

[0095] Subsequently, the transceiver devices 10, 12 acquire the corresponding reception properties for the determined communication channels 16, 18, 20, 22. For example, the reception properties may include the received signal strength, the value of the reception quality, the modulation method and / or the coding method. Preferably, at least the station signal selected from the station signals is received via at least two mutually different communication channels, more specifically, the transceiver device 10 receives the selected station signal via the communication channel 16, which is a radio broadcast channel in this case, and at the same time the transceiver device 10 receives the same station signal in the form of a stream via the communication channel 20. Conversely, the transceiver device 12 receives the selected station signal via the communication channel 18, which is also a radio broadcast channel, and the transceiver device 12 also receives the same station signal in the form of a stream via the communication channel 22. This makes it possible for the transceiver devices 10, 12 to determine the difference data with respect to the correspondingly determined standardized volume and the corresponding relative time delay of the station signals, which are received via the two communication channels 16, 18, 20, 22, respectively. The position-dependent reception data record is determined together with the position data.

[0096] The position-dependent reception data records determined in this way are transmitted via the corresponding communication channels 20, 22 and the Internet 28 to the server device 24, which stores the position-dependent reception data records in a retrievable manner in a database 52. Thus, position-dependent reception data records can be provided to a plurality of users or transceiver devices 10, 12 in order to improve the reception of corresponding station signals, in particular station signals selected from the station signals, by the transceiver devices 10, 12.

[0097] In this case, it is provided that the position data of the transceiver device 10, 12 are determined again at a predetermined time and that the method for determining a position-dependent reception data record is repeated in the event of a change in the position data of the transceiver device 10, 12. This makes it possible, in particular when the motor vehicle 34 is in a determined travel, to determine a plurality of position-dependent reception data records along the travel route by the transceiver device 10, 12 and transmit them to the server device 24. Thus, by the operation of the motor vehicle 34 while traveling and the simultaneous use of the corresponding transceiver device 10, 12, a plurality of data can be determined, which data can be used to provide the transceivers of other motor vehicles moving along the same position with corresponding position-dependent reception data records, so that the reception of the corresponding station signals can be improved.

[0098] In this case, therefore, the respective transceiver device 10, 12 does not need to determine the reception data in a complex manner and improve the transmission of the respective station signal by switching and / or superimposing the communication channel as required, but the respective one of the transceiver devices 10, 12 can make corresponding adjustments in terms of reception at low cost and almost without delay by using the position-dependent reception data record provided by the server device 24, so that the response time can be significantly shortened. As a result, the transmission of the station signal can be improved.

[0099] In order to use the data of the server device 24, the transceiver devices 10, 12 are operated as described below. The corresponding transceiver device of the transceiver devices 10, 12 receives the selected station signal and transmits the station signal. As explained above, the position data of the transceiver devices 10, 12 are determined, wherein the position data and the data about the station signal selected from the station signals are transmitted to the server device 24. The server device 24 stores a plurality of position-dependent reception data records in a retrievable manner. In response to the data transmitted to the server device 24, the server device 24 determines at least one position-dependent reception data record for the station signal selected from the station signals based on the position data and transmits it to the transceiver devices 10, 12.

[0100] The transceiver devices 10, 12 receive the at least one position-dependent reception data record and adjust to the corresponding communication channel according to the received position-dependent reception data record. Preferably, the communication channel is a single communication channel. Alternatively, however, it can also be provided that the position-dependent reception data record is arranged so that two or more communication channels are used for receiving the selected station signal. The transceiver devices 10, 12 can then use one or more of the communication channels 16, 18, 20, 22 to receive and transmit station signals. In this case, the transceiver devices 10, 12 can be arranged to make corresponding adjustments by using the difference data of the position-dependent reception data record so that the switching or superposition of station signals transmitted via different communication channels can be achieved as interference-free as possible.

[0101] In an alternative embodiment, it can of course also be provided that the server device 24 uses the position data to determine the best communication channel for the selected station signal. For this purpose, the server device 24 can then determine identification data, which are transmitted to the corresponding transceiver device 10, 24. The transceiver device 10, 12 can then determine and adjust the corresponding communication channel based on the identification data. Therefore, in this embodiment of the invention, only very low costs are required in terms of the transceiver device, so that a very fast and precise response can be achieved.

[0102] The server device 24 is designed to receive and retrievably store the position-dependent reception data records transmitted by the transceiver devices 10, 12. If the server device 24 receives the position data of the transceiver devices 10, 12 and the data about the selected station signals, the server device 24 can determine the position-dependent reception data record from the stored reception data records and transmit the position-dependent reception data record to the transceiver devices 10, 12. Alternatively, it can also be provided that the server device 24 determines the communication channel with the best reception performance among the communication channels 16, 18, 20, 22 for the position data and the data about the selected station signals from the station signals and transmits the identification data about the communication channel to the transceiver devices 10, 12. In this way, only the corresponding communication channel needs to be adjusted on the part of the transceiver devices.

[0103] Of course, the server device 24 can simply store the received position-dependent reception data records. However, it can also be provided that the server device 24 further processes the position-dependent reception data records. This processing can, for example, consist in updating the current reception data records for the same position data, so that for the same position data and the same station data, only a single position-dependent reception data record is always present in the database of the server device 24. In addition, it can also be provided that the server device 24 includes a processing unit (not shown), which allows, using statistical methods and, if necessary, also taking into account geographical features, to determine its own position-dependent reception data records for position data and / or station signals for which no position-dependent reception data records exist in the database, and transmit them to the radio transceiver 10, 12 if necessary. This design has the advantage that gaps in the database can be filled in terms of position data and / or station signals. For this purpose, the processing unit can perform corresponding signal processing.

[0104] Figures 2 to 4 By way of example, it is shown how the reception performance of the station signal is acquired at the radio transceiver 10, 12 of the motor vehicle 34. In this embodiment, Figures 2 to 4 This concerns the reception performance of different station signals 36 , 38 , 40 , which are received on different dates, for example.

[0105] Figure 2 A motor vehicle 34 is shown, in which a radio transceiver 10 is arranged. Figure 2 The radio transceiver 10 receives the station signal 36 of the transmission station 14 via the radio broadcast channel 16 and acquires the standardized volume value A. The standardized volume value A is stored in the storage unit 42 of the radio transceiver 10 .

[0106] Now, Figure 3 Shown in the following day with Figure 2 In a similar situation to that of the present invention, the radio transceiver 10 now receives a station signal 38. The station signal 38 is also received via radio broadcasting. In the second storage unit 44 of the radio transceiver 10, the corresponding standardized volume value G is stored.

[0107] In the following day, according to Figure 4 , a third station signal 40 is received by the radio transceiver 10 and a standardized volume value C is stored in the memory location 46 .

[0108] When acquiring the standardized volume values ​​A, G, C, the position data are also stored, so that the storage units 42, 44, 46 store position-dependent reception data records. As soon as the radio transceiver device 10 can be connected to the Internet 28 and thus to the server device 24 via the communication channel 20, the position-dependent reception data records are transmitted to the server device 24. The server device 24 then stores the reception data records.

[0109] Figure 5 The corresponding process is shown. The data transmission from the radio transceiver device 10 to the server device 24 is shown by arrow 48, and conversely, the corresponding data transmission from the server device 24 to the radio transceiver device 10 is shown by arrow 50. In addition, Figure 5 As can be seen in FIG. 5 , the server device 24 includes a database 52 in which location-dependent reception data records are stored. As an alternative or in addition to the standardized volume, the reception field strength, the relative time delay and / or the like can also be determined. These data can also be included in the corresponding reception data record.

[0110] Figure 6 An example of how a radio transceiver 10, 12 determines a standardized volume value is shown in a schematic block diagram. In block 54, a demodulated and / or decoded station signal, here an audio signal, is input. In block 56, the sampling rate is adapted. Subsequently, signal processing continues in block 58, using an audio filter, for example according to ITU 1770.

[0111] From here, the signal processing branches into two parallel branches. In the first signal processing branch, in block 60, a square average is calculated based on a time base of about 400 ms. Subsequently, the signals for the left and right channels are added in block 62. Subsequently, in the subsequent block 64, a muting and / or long-term averaging is performed over a time period of about 300 s in this case. Finally, the average normalized volume level in preset units LUFS (loudness unit full scale) is determined in block 66.

[0112] In a second parallel branch, the peak levels are averaged over a long period of about 300 seconds in block 68. Subsequently, a normalized volume value in LUFS for the peak level is determined in a subsequent block 70. This value can then be included in the location-dependent reception data record.

[0113] Figure 7The schematic diagram shows the situation of receiving the station signal of the transmitting station 14 via different communication channels, here a first communication channel FM, a second communication channel DAB1, a third communication channel DAB2 and a fourth channel in the form of a stream. The ordinate is associated with the volume value in LUFS. The line 72 parallel to the horizontal axis represents the value of -23LUFS, which is the target value for further signal processing. The corresponding volume values ​​of the station signal received by the radio transceiver 10 are shown by the graphs of FM, DAB1, DAB2 and Stream. The received volume value (GAL; guarded average volume level in English) gives a measure of the standardized volume at which the station signal is received via the corresponding communication channel in the communication channel. The deviation from the target value 72 is indicated by the value RAW.

[0114] Figure 8 The reference table shows the Figure 7 The corresponding deviation value of the case. Figure 8 In the left column of the table, the initial situation of the settings of the radio transceiver 10 is shown. The target situation for the settings of the radio transceiver 10 is shown in the top row. The corresponding adjustment and adaptation situations are given in the area between them. The gray-shaded areas in the diagonal extending from the upper left to the lower right of the table give the corresponding reception values. The other areas relate to the corresponding adaptation coefficients when switching between communication channels.

[0115] The figure shows how the adaptation can be carried out in a simple manner. The corresponding position-dependent reception data record can be transmitted to the server device 24. It can be provided that the position-dependent reception data record only includes the Figure 8 Furthermore, it can of course also be provided that, for example, Figure 7 The reception performance shown in is included in the location-dependent reception data record.

[0116] The embodiments shown in the drawings are only for explaining the present invention and shall not limit the present invention.

Claims

1. A method for operating a radio transceiver (10, 12) which receives station signals of a transmitting station (14) transmitted via a communication channel (16, 18, 20, 22) and transmits a station signal selected from the station signals, wherein: The method comprises the following steps: - determining a communication channel (16, 18, 20, 22) for a respective one of the station signals, over which the respective one of the station signals is transmitted, and - obtaining reception performance of the determined communication channel (16, 18, 20, 22), - obtaining position data of the radio transceiver device (10, 12), - associating the position data with the acquired reception performance for the determined communication channel (16, 18, 20, 22), wherein a position-dependent reception data record is determined for at least one of the station signals, and - transmitting at least one location-dependent reception data record to a server device (24) so ​​that the at least one location-dependent reception data record is stored in a retrievable manner by the server device (24), characterized in that at least one of the station signals is received via at least two mutually different communication channels (16, 18, 20, 22), difference data of the station signal are determined at least with respect to the corresponding standardized volume and the corresponding relative time delay, and the difference data are included in the location-dependent reception data record.

2. The method according to claim 1, characterized in that The reception performance of the determined communication channel (16, 18, 20, 22) and the position data of the radio transceiver device are acquired at least at at least one predetermined time.

3. The method according to any one of the preceding claims, characterized in that The position data of the radio transceiver device are determined again at at least one predetermined time, and the method is repeated if the position data of the radio transceiver device changes.

4. The method according to claim 1 or 2, characterized in that: The reception performance includes at least one of a received signal strength, a standardized volume value, a reception quality value, a modulation mode and / or a coding mode.

5. A method for operating a radio transceiver (10, 12) which receives station signals of a transmitting station (14) transmitted via a communication channel (16, 18, 20, 22) and transmits a station signal selected from the station signals, wherein: The method comprises the following steps: determining position data of a radio transceiver (10, 12); transmitting at least the position data and data about a station signal selected from the station signals to a server device (24) storing position-dependent reception data records in a retrievable manner; as a response to the data transmitted to the server device (24), the radio transceiver (10, 12) receives a position-dependent reception data record for the station signal selected from the station signals based on the position data; and for receiving and transmitting the station signal selected from the station signals, the radio transceiver (10, 12) adjusts to the communication channel based on the received position-dependent reception data record, characterized in that the selected station signal is received via at least two mutually different communication channels (16, 18, 20, 22), and difference data of the station signal at least in terms of corresponding standardized volume and corresponding relative time delay are determined from the position-dependent reception data record.

6. The method according to claim 5, characterized in that A radio transceiver (10, 12) is arranged on a motor vehicle, wherein the motor vehicle travels along a travel route predetermined by a navigation device, wherein position data of the radio transceiver (10, 12) are determined based on the predetermined travel route.

7. A radio transceiver (10, 12), the radio transceiver being configured to receive a station signal of a transmitting station (14) transmitted via a communication channel (16, 18, 20, 22) and to transmit a station signal selected from the station signals, wherein: The radio transceiver (10, 12) is also configured as follows: - determining a communication channel (16, 18, 20, 22) for a respective one of the station signals, via which the respective one of the station signals is transmitted, - obtaining reception performance of the determined communication channel (16, 18, 20, 22), The radio transceiver (10, 12) is also configured to: - obtaining position data of the radio transceiver device (10, 12), - associating the position data with the acquired reception performance for the determined communication channel (16, 18, 20, 22) in order to determine a position-dependent reception data record for at least one of the station signals, and - transmitting the at least one location-dependent reception data record to a server device (24), characterized in that the radio transceiver device (10, 12) is designed to receive at least one of the station signals via at least two mutually different communication channels (16, 18, 20, 22), determine difference data of the station signal at least in terms of a corresponding standardized volume and a corresponding relative time delay, and include the difference data in the location-dependent reception data record.

8. A radio transceiver (10, 12) configured to receive a station signal of a transmitting station (14) transmitted via a communication channel (16, 18, 20, 22) and to transmit a station signal selected from the station signals, wherein: The radio transceiver device (10, 12) is further configured to determine position data of the radio transceiver device (10, 12) and to transmit at least the position data and data about station signals selected from the station signals to a server device which stores position-dependent reception data records in a retrievable manner; As a response to data transmitted to a server device (24), identification data about a communication channel (16, 18, 20, 22) with the best reception performance determined by the server device (24) is received; and in order to receive and send a station signal selected from the station signals, the radio transceiver device (10, 12) is adjusted to the communication channel (16, 18, 20, 22) with the best reception performance according to the identification data, characterized in that the radio transceiver device (10, 12) is designed to receive the selected station signal through at least two different communication channels (16, 18, 20, 22) from each other, and determine difference data of the station signals at least in terms of corresponding standardized volume and corresponding relative time delay from the location-related reception data record.

9. A motor vehicle having a radio transceiver, characterized in that: The transceiver device (10, 12) is designed according to claim 7 or 8.

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