Device in a moble station for interconnecting a baseband module and a high frequency module by a digital interface
9 claims: 6 independent, 3 dependent
- 1Empfangs- und Sendeanordnung für Mobilfunk, mit - einem Basisbandbauteil (1) zum Verarbeiten eines in ein erstes Basisbandsignal umgesetzten Empfangssignals oder eines zweiten Basisbandsignals mit einem zur digitalen Datenübertragung ausgebildeten Ein-/Ausgang, - einem Hochfrequenzbauteil (3) zum Umsetzen des Empfangssignals in das erste Basisbandsignal oder zum Umsetzen des verarbeiteten zweiten Basisbandsignals in ein Sendesignal, mit einem zur digitalen Datenübertragung ausgebildeten Ein-/Ausgang, der mit dem Ein-/Ausgang des Basisbandbauteils (1) zur digitalen Übertragung von zu empfangenden Nutzdaten elektrisch verbunden ist, - einer ersten digitalen Mehrleiterverbindung (21, 22, 23) zur Übertragung der empfangenen Nutzdaten von dem Hochfrequenzbauteil (3) zum Basisbandbauteil (1) und der zu sendenden Nutzdaten von dem Basisbandbauteil (1) zu dem Hochfrequenzbauteil (3), und - einer zweiten digitalen Mehrleiterverbindung (24, 25, 26) zur Übertragung von Konfigurationsdaten von dem Basisbandbauteil (1) zum Hochfrequenzbauteil (3), wobei die erste (21, 22, 23) und die zweite digitale Mehrleiterverbindung (24, 25, 26) mit dem Ein-/Ausgang des Hochfrequenzbauteils (3) und dem Ein-/Ausgang des Basisbandbauteils (1) verbunden sind, - einer Synchronisationsleitung (27) für eine unidirektionale Datenübertragung von dem Basisbandbauteil (1) zu dem Hochfrequenzbauteil (3), und - einer digitalen Signalleitung (28) für eine unidirektionale Datenübertragung von dem Basisbandbauteil (1) zu dem Hochfrequenzbauteil (3), gekennzeichnet durch - einen in dem Basisbandbauteil (1) enthaltenen Ausgangspuffer, wobei - die Anordnung derart eingerichtet ist, dass für einen Sendevorgang das Hochfrequenzbauteil (3) über die digitale Signalleitung (28) aktiviert und alle für das Senden erforderlichen Konfigurationsdaten über eine Datenleitung (24) der zweiten Mehrleiterverbindung (24, 25, 26) an das Hochfrequenzbauteil (3) übertragen werden und sobald eine bestimmte Menge Datenbits in den Ausgangspuffer des Basisbandbauteils (1) geschrieben sind, dem Hochfrequenzbauteil (3) über die Synchronisationsleitung (27) ein Startsignal übermittelt wird, um die Datenbits aus dem Ausgangspuffer des Basisbandbauteils (1) anzufordern und in das Sendesignal umzusetzen.
- 2Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass - die erste digitale Mehrleiterverbindung (21, 22, 23) - - zumindest eine Datenleitung (21) aufweist, die zur seriellen Übertragung der empfangenen Nutzdaten ausgebildet ist, - - eine Bittaktleitung (22) umfasst, die zur Übertragung eines Taktsignals ausgebildet ist, wobei je eine Taktperiode je einem Bit der Datenleitung (21) zugeordnet ist, und - - eine Worttaktleitung (23) umfasst, die zum Anzeigen des Übermittlungsbeginns einer Folge von Bits auf der Datenleitung (21) ausgebildet ist.
- 3Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass - die zweite digitale Mehrleiterverbindung (24, 25, 26) - - zumindest eine Datenleitung (24) aufweist, die zur seriellen Übertragung der Konfigurationsdaten ausgebildet ist, - - eine Bittaktleitung (25) umfasst, die zur Übertragung eines Taktsignals ausgebildet ist, wobei je eine Taktperiode je einem Bit der Datenleitung (24) zugeordnet ist, und - - eine Worttaktleitung (26) umfasst, die zum Anzeigen des Übermittlungsbeginns einer Folge von Bits auf der Datenleitung (24) ausgebildet ist.
- 4Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ein-/Ausgänge des Basisbandbauteils (1) und des Hochfrequenzbauteils (3) für eine bidirektionale Datenübertragung ausgelegt sind.
- 5Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste (21, 22, 23) und die zweite Mehrleiterverbindung (24, 25, 26) für eine bidirektionale Signalübertragung ausgebildet sind.
- 6Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass - die Datenleitung (21) der ersten Mehrleiterverbindung (21, 22, 23) bidirektional ausgebildet ist, und zusätzlich zur seriellen Übertragung von zu sendenden Nutzdaten ausgelegt ist, und - die Datenleitung (24) der zweiten Mehrleiterverbindung (24, 25, 26) bidirektional ausgebildet ist, und zusätzlich zur seriellen Übertragung von Konfigurationsdaten ausgebildet ist.
- 7Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine Signalverbindung zwischen dem Basisbandbauteil (1) und dem Hochfrequenzbauteil (3), insbesondere die Datenleitung (21) der ersten digitalen Mehrleiterverbindung (21, 22, 23), als differentielle Signalleitung ausgebildet ist.
- 8Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass für mindestens eine Signalverbindung zwischen dem Basisbandbauteil (1) und dem Hochfrequenzbauteil (3), insbesondere für die Datenleitung (21) der ersten digitalen Mehrleiterverbindung (21, 22, 23) ein Signalflanken- oder Signalimpulsformungsverfahren verwendet wird.
- 9Mobilstation mit einer Anordnung nach einem der Ansprüche 1 bis 8, die zur Kommunikation, insbesondere zur drahtlosen Übertragung von Signalen, mit einer Basisstation ausgelegt ist.
Independent claims9
38 paragraphs, as filed
p0001The present invention relates to a receiving and transmitting arrangement for processing signals, in particular for processing signals in a mobile station. In mobile radio, a distinction is usually made between mobile stations and base stations, whereby several mobile stations can simultaneously communicate with a base station or a fixed station.
p0002Modules and demodulators are used within transmitting and receiving devices in mobile stations, which modulate a carrier oscillation and received data according to the data to be transmitted according to standardized modulation and demodulation methods and demodulate them according to the received data. Known modulation and demodulation methods are, for example, GSM (Global System for Mobile Communication), EDGE (Enhanced Data Rates for GSM Evolution), TIA-EIA 136 (Telecommunication Industry Associations / Electronic Industry Association), UTRA FDD (UMTS Terrestrial Radio Access Frequency Division Duplex), UTRA TDD (UMTS Terrestrial Radio Access Time Division Duplex), and IS-95. In general, these modulators and demodulators consist of a plurality of functional units, for example a baseband component, Which generates a standard-compliant, usually complex-valued signal from the data to be transmitted by means of digital signal processing, and a high-frequency component which shifts this complex-valued signal into a high-frequency position and transmits it as a real-valued signal after an appropriate amplification via an antenna. Correspondingly, the received user data are demodulated by the high-frequency component into a complex-valued signal, and the received demodulated data is further processed in a base-band component. The data is transmitted via a radio channel. Which shifts this complex-valued signal into a high-frequency position and transmits it as a real-valued signal after suitable amplification via an antenna. Correspondingly, the received user data are demodulated by the high-frequency component into a complex-valued signal, and the received demodulated data is further processed in a base-band component. The data is transmitted via a radio channel. Which shifts this complex-valued signal into a high-frequency position and transmits it as a real-valued signal after suitable amplification via an antenna. Correspondingly, the received user data are demodulated by the high-frequency component into a complex-valued signal, and the received demodulated data is further processed in a base-band component. The data is transmitted via a radio channel.
p0003Due to different physical requirements for the baseband and high-frequency components, these functional units are usually implemented in separate integrated circuits with different manufacturing technologies. In the transmitter direction, the modulated baseband signal must then be transferred to the high-frequency component in a suitable form. In the receiving direction, the demodulated high-frequency signal must be supplied to the baseband signal in a suitable form. A suitable interface is to be provided between the baseband component and the high-frequency component, which currently is usually implemented in the form of an analog signal interface. The baseband signals are usually provided at this analog interface as complex-valued baseband signals, which are divided into a real part and an imaginary part, As a so-called IQ signal with an in-phase component and a quadrature component displaced by 90 ° in phase. I and Q components are usually transmitted as a differential signal in each case; So that in turn two lines each have to be provided.
p0004From the German Offenlegungsschrift <patcit id="pcit0001" dnum="DE10035116A1"><text>DE 100 35 116 A1</text></patcit> A high-frequency interface is known for dual-standard baseband chips in mobile radio devices. In the case of the signal bus system for transmitting reception signals and transmitting signals from the high-frequency side to the baseband side, or vice versa, the interface is completely analogous. In addition to the disadvantage of the completely analogous design of the interface, the high number of signal connections required between the high-frequency side and the baseband side is also a considerable disadvantage, in particular with regard to the resulting relatively low flexibility of the arrangement and the relatively large space requirement. Furthermore, it is necessary to provide relatively high-quality analog signal processing components such as, for example, digital / analogue and analogue-to-digital converters,
p0005Furthermore, special signal processing steps with regard to the high-frequency component must usually be performed in the base-band circuit part in order to compensate for, or to correct, inaccuracies, non-idealities or tolerances in the high-frequency component beforehand. The baseband part can consequently no longer be viewed, analyzed and developed independently of the high-frequency part. Due to this advancing development in the field of digital signal processing and modulator concepts, the proportion of processing in the baseband increases in proportion to the overall signal processing path, especially with regard to the interaction with the high frequency part. This results in an undesirable, limited flexibility of baseband building blocks or baseband chips,
p0006The print <patcit id="pcit0002" dnum="WO02091601A"><text>WO 02/091601 A</text></patcit> Describes a receiving and transmitting arrangement consisting of a baseband component and a high-frequency component which are connected to one another via an interface. This interface comprises a first and a second digital multi-conductor connection, a unidirectional synchronization line and a unidirectional digital signal line for activating the high-frequency component. The arrangement also includes a receive buffer in the high-frequency component into which data to be transmitted are transmitted from the baseband component. The transmission is caused by a digital interrupt request (interrupt) line between the baseband component and the high-frequency component.
p0007It is an object of the invention to provide a receiving and transmitting arrangement for processing signals, in particular for mobile radio, which enables a baseband processing which is independent of the high-frequency part and can be implemented with little effort, in particular a low number of pins.
p0008This object is achieved by a receiving and transmitting arrangement for processing signals having the features of patent claim 1. Advantageous further developments and refinements are subject matter of the subclaims.
p0009A receiving and transmitting arrangement according to the invention (hereinafter also referred to as a "device") for processing signals, in particular for mobile radio, has a baseband component for processing a received signal with an input / output configured for digital data transmission. Furthermore, the device comprises a high-frequency component for converting the received signal into a baseband signal, the high-frequency component having an input / output configured for digital data transmission which is electrically connected to the input / output of the baseband component for digital transmission of useful data to be received. The received useful data is to be understood as meaning those data with which a carrier frequency is modulated in the high-frequency part.
p0010The device according to the invention can be implemented with a small number of lines. Furthermore, the digitally realized interface between the baseband component and the high-frequency component allows a transmission of received user data from the high-frequency part to the baseband part, as well as the transmission of configuration data. The digital interface between the baseband component and the high-frequency component can be realized in such a way that the digital interface has the lowest possible data rate. A particular advantage of the device according to the invention is shown in that the digital interface between the baseband component and the high-frequency component enables a baseband processing which is independent of the high-frequency component. The baseband component is completely realized with digital circuit components, So that a high integration density is made possible and a substantial independence from production scatterings can be achieved. The interface between the baseband component and the high-frequency component can thereby be designed completely without analog components. It is ensured that, on the one hand, the transmission of modulation data as well as of configuration data from the baseband part to the high-frequency part and, on the other hand, the transmission of reception data from the high-frequency part to the base-band part can be effected digitally.
p0011Furthermore, the device according to the invention allows those signal processing steps at the physical level corresponding to the layer 1 in the OSI layer model, such as modulation, pre-correction and compensation, as well as pulse shaping with described digital interfaces, to be executed completely in the high-frequency component and thus independently of the baseband component . It is also possible to ensure that signal processing steps are carried out at the information bit level in the baseband component, such as, for example, the formation of transport blocks, channel coding such as convolution and / or turbocoding, adaptation of the bit rate, error protection coding, interleaving, frame and packet segmentation, and also Transport stream multiplexing.
p0012The device for processing signals permits a considerably simplified circuit layout as well as a considerably simplified circuit design in the baseband component and in the high-frequency component. The digital interface allows a real-time operation and shows a considerably higher flexibility in that those digital signal processing steps can be performed directly in the high-frequency component, ie, in the high-frequency component, for the compensation and / or precorrection of the high-frequency signals. This makes it possible for a baseband component to be coupled with different high-frequency components, depending on the application. A further advantage is to be seen in the fact that, That adaptation to future production processes and production technologies with higher integration densities can be realized with very little effort. The high frequency component and the baseband component can be integrated circuits which are separated from one another. The device according to the invention is designed in such a way that it is preferably designed for use in mobile radio stations which support one or more of the mobile radio standards GSM, EDGE, TIA / EIA-136, UTRA FDD, UTRA TDD or IS-95. The device can thus be configured in one embodiment as a receiving arrangement for processing, in particular, receiving signals in mobile stations. It is preferred that it is designed for use in mobile stations which support one or more of the mobile radio standards GSM, EDGE, TIA / EIA-136, UTRA FDD, UTRA TDD or IS-95. The device can thus be configured in one embodiment as a receiving arrangement for processing, in particular, receiving signals in mobile stations. It is preferred that it is designed for use in mobile stations which support one or more of the mobile radio standards GSM, EDGE, TIA / EIA-136, UTRA FDD, UTRA TDD or IS-95. The device can thus be configured in one embodiment as a receiving arrangement for processing, in particular, receiving signals in mobile stations.
p0013According to the invention, the device has a first digital multi-conductor connection for the transmission of the received user data from the high-frequency component to the baseband component. In addition, the device advantageously includes a second digital multi-conductor connection for transmitting configuration data from the baseband component to the high-frequency component, the first and second digital multi-conductor connections being connected to the input / output of the high-frequency component and the input / output of the baseband component. The configuration data are used to identify the data with which the high-frequency component can be configured. For example, this is the type of modulation in the transmitter, the transmission power curve, the transmission time, the amplitude, the transmission mode, the on / off behavior of the transmitter, the transmit time, etc.
p0014The two independent digital multi-conductor connections make it possible to carry out a separate transmission of user data and configuration data. Since in general the payload information is processed by a digital signal processor in the baseband component and the configuration information is provided by a microprocessor in the baseband component independently thereof, the received useful data can be transmitted from the high frequency component to the baseband component via the separate first digital multi- Advantageously, the received user data and the configuration data are transmitted separately by telegram-oriented or packet-oriented transmission protocols via the digital interface. The first and second digital multi-conductor connections may be electrically connected to the high-frequency component via a single input / output. However, it may also be provided that the first digital multi-conductor connection is connected to a first input / output of the high-frequency component, and the second digital multi-conductor connection is connected to a second input / output of the high-frequency component. Analogously, it can be provided that the first and the second digital multiconductor connection are connected to a single input / output of the baseband component or to a separate input / output of the baseband component. And the second digital multi-conductor connection is connected to a second input / output of the high-frequency component. Analogously, it can be provided that the first and the second digital multiconductor connection are connected to a single input / output of the baseband component or to a separate input / output of the baseband component. And the second digital multi-conductor connection is connected to a second input / output of the high-frequency component. Analogously, it can be provided that the first and the second digital multiconductor connection are connected to a single input / output of the baseband component or to a separate input / output of the baseband component.
p0015Preferably, the first digital multiconductor connection comprises at least one data line which is designed for the serial transmission of the received useful data. In addition, the first digital multi-conductor connection has a bit clock line, which is designed for the transmission of a clock signal, one clock period each being assigned to one bit of the data line. Furthermore, the first digital multi-conductor connection comprises a word clock line, which is designed to indicate the start of transmission of a sequence of bits on the data line. The data to be transmitted via the data line, in particular the received user data, can be constructed in transmission units (telegrams), each comprising, for example, serially arranged 16 bits. A signal pulse (burst) of the circuit may itself,
p0016Advantageously, the device for processing signals has a second digital multi-conductor connection, which comprises a data line, which is designed for the serial transmission of the configuration data. Furthermore, the second digital multi-conductor connection has a bit clock line, which is designed for the transmission of a clock signal, one clock period each being assigned to one bit of this data line. Furthermore, the second digital multi-conductor connection comprises a word clock line, which is designed to indicate the start of transmission of a sequence of bits on the data line of the second digital multi- This makes it possible to enable the configuration data to be transmitted via a digital interface built up of three signal lines in addition to the received user data. Also in the case of the configuration data, the transmission protocol is advantageously organized in telegrams. During the organization of the transmission protocols, individual telegrams or a combination of directly successive telegrams can be used. Since, in the device according to the invention, the user data transmission can be carried out completely independently of the data transmission of the configuration data, it is also possible that, for example, a microprocessor in the baseband component transmits signal parameters to the high-frequency component at specific instants, the times being predetermined by the microprocessor. It can be ensured, That the digital signal processor in the baseband component remains unaffected and no user data transmission or processing interruption has to be carried out. As a result, a substantial simplification of the temporal sequence and the coordination of the processes in the baseband component can be achieved.
p0017In a particularly preferred exemplary embodiment, the inputs / outputs of the baseband component and of the high-frequency component are designed for bidirectional data transmission. In a particularly preferred manner, the device is designed as a receiving and transmitting arrangement, wherein the baseband component is designed in addition to processing a baseband signal. Furthermore, the high-frequency component is designed in addition to converting the baseband signal into a high-frequency transmission signal. It can thereby be achieved that both the interface of the reception path is implemented by a digital interface and the interface of the transmission path is designed as a digital interface. Therefore, both the received user data and the user data to be transmitted are transmitted via digital interfaces between the baseband component and the high-frequency component. By having both the transmitting and the receiving arrangement digital interfaces, the device can be constructed with a reduced number of lines and an increased flexibility as well as a reduced implementation effort.
p0018In a particularly advantageous manner, the first and the second multi-conductor connection is designed for bidirectional signal transmission. It is advantageous to designate the data line of the first multi-conductor connection in a bidirectional manner, thereby making it possible to enable a serial transmission of user data to be transmitted via the data line. The user data to be transmitted are the data with which a carrier frequency is modulated in the high-frequency component and transmitted via an antenna. Furthermore, it can be provided that the data line of the second multi-conductor connection is formed in a bidirectional manner, which makes it possible to additionally allow a serial transmission of configuration data. The bidirectional execution of the data line of the first multi-conductor connection allows both reception data from the high-frequency component to the base-band component and also transmission data from the base-band component to the high-frequency component to be transmitted. It may also be provided that the first multi-conductor connection has two data lines, only the transmission data being transmitted via one of the data lines, and only the reception data being transmitted via the second data line.
p0019Furthermore, the bidirectional execution of the data line of the second multi-line connection allows both configuration data to be transmitted from the high-frequency component to the baseband component as well as from the baseband component to the high-frequency component. This results in a considerably higher flexibility and a larger and widened application range of both the baseband component and the high-frequency component. By transmitting the reception data immediately from the high-frequency component via the data line of the first multi-line connection to the baseband component, a reduced data storage requirement occurs in the high-frequency component since transmission and reception data can be temporarily stored in the baseband component. This results in a higher flexibility in the selection of the technology of the high-frequency component. Furthermore, since no analog components are required for the transmission and reception path in the baseband component, the baseband component can be implemented with simpler, more cost-effective production technologies for exclusively digital circuits. The device according to the invention for processing signals can thus in turn be designed as a receiving arrangement with a digital interface of the receiving path. Advantageously, the device can also be designed as a transmitting and receiving arrangement in which the transmission path and the receiving path are implemented by means of a digital interface. More cost-effective production technologies for exclusively digital circuits. The device according to the invention for processing signals can thus in turn be designed as a receiving arrangement with a digital interface of the receiving path. Advantageously, the device can also be designed as a transmitting and receiving arrangement in which the transmission path and the receiving path are implemented by means of a digital interface. More cost-effective production technologies for exclusively digital circuits. The device according to the invention for processing signals can thus in turn be designed as a receiving arrangement with a digital interface of the receiving path. Advantageously, the device can also be designed as a transmitting and receiving arrangement in which the transmission path and the receiving path are implemented by means of a digital interface.
p0020In a particularly advantageous manner, exactly one line is provided for the received user data as well as for the useful data to be transmitted in the form of the data line of the first multi-line connection for the transmission path as well as for the reception path. It can also preferably be provided that exactly one line is provided for the configuration data, which is implemented by the data line of the second multi-line connection. As a result, the number of signal lines, in particular the data lines, between the baseband component and the high-frequency component can be considerably reduced.
p0021Furthermore, the device advantageously has a synchronization line for synchronizing the user data in the high-frequency component. The synchronization line is electrically connected to the inputs / outputs of the high-frequency component and the input / output of the baseband component. Furthermore, it can be provided that the device comprises a digital signal line for interrupting or triggering a signal transmission between the high-frequency component and the baseband component. This additional digital signal line is electrically connected to the input / output of the high frequency component and the input / output of the baseband component. Synchronization information can be transmitted with the synchronization line which determine the time of the respective start of transmission and end at the output side of the high-frequency component. For example, synchronization with the time slots of an underlying radio standard can thereby be carried out. With the additional digital signal line for interrupting or triggering a signal transmission, it can be caused, for example, that the data transmission between the baseband component and the high-frequency component is resumed or interrupted.
p0022Preferably, the inputs and outputs of the high frequency component and the baseband component are designed for serial data transmission. By means of a serial data transmission, in particular a serial digital data transmission, it can be made possible that digital transmission methods with standardized transmission protocols can be used due to the small amount of data to be transmitted.
p0023It can also be provided that the word clock lines characterize the beginning of a new word, in particular of a 16-bit word, by a change in edge in the clock signal, in particular a change in edge from a low level to a high level. Furthermore, it can be provided that a flank shaping method or a pulse shaping method for reducing interference emissions is used for at least one signal connection between the high-frequency component and the baseband component, and in particular for the data line of the first multi-conductor connection.
p0024It is particularly advantageous if at least one signal connection between the baseband component and the high-frequency component is designed as a differential signal line or as a double line. In particular, it is advantageous to design the data line of the first digital multiconductor connection, which is designed for the serial transmission of the useful data, as a differential signal line.
p0025It is also advantageous if a signal flank or signal pulse shaping method is used for at least one signal connection between the baseband component and the high-frequency component, in particular for the data line of the first digital multi-conductor connection.
p0026In an advantageous embodiment, the device according to the invention is arranged in a mobile station, the mobile station being designed for communication, in particular for wireless transmission of signals, with a base station. The device according to the invention in the mobile station can also be embodied here as a transmitting and receiving arrangement or merely as a receiving arrangement.
p0027An exemplary embodiment of the invention is explained in more detail below with the aid of schematic drawings. Show it.<dl id="dl0001"><dt>FIG</dt><dd>4 is a block circuit diagram of a first embodiment of the device according to the invention;</dd><dt>FIG</dt><dd>An exemplary signal waveform representation of the first digital multiconductor connection for transmitting the useful data via the digital interface according to FIG <figref idrefs="f0001">FIG</figref>;</dd><dt>FIG</dt><dd>An exemplary representation of signal sequences of the second digital multiconductor connection for the transmission of the configuration data via the digital interface according to FIG <figref idrefs="f0001">FIG</figref>; and</dd><dt>FIG</dt><dd>A representation of the signal sequences for the transmission of configuration data, useful data, synchronization data, and a basic profile of a transmission power via the digital interface according to FIG <figref idrefs="f0001">FIG</figref>.</dd></dl>
p0028A device according to the invention for processing signals for the mobile radio (<figref idrefs="f0001">FIG</figref>) Comprises a base binding component 1. The baseband component 1 is connected to a high-frequency component 3 via a digital interface 2. The baseband component 1 serves for the digital processing of user data to be transmitted and of user data which is to be transmitted, and comprises a digital signal processor DSP for processing the useful data as well as a microprocessor 11 for controlling the high-frequency component 3 by means of the configuration data. Furthermore, the microprocessor 11 controls the sequence control. In the present exemplary embodiment, the high-frequency component 3 comprises a power amplifier 31. This power amplifier can also be implemented as an external component and can be separated from the high-frequency component 3. An antenna 4 is connected to the power amplifier 31 on the output side, Which is designed for the transmission of high-frequency modulated signals. In the exemplary embodiment shown, the device is designed as a transmitting and receiving arrangement in a mobile station. The digital interface 2 between the baseband component 1 and the high-frequency component 3 comprises a first digital multi-conductor connection which is designed for the transmission of useful data to be transmitted and of received useful data between the baseband component 1 and the high-frequency component 3. This first digital multiconductor connection comprises a data line 21, which is designed for bi-directional transmission of signals. The user data to be transmitted and the received useful data are transmitted via this data line 21. The user data are thus transmitted via only a single data line. However, it can also be provided, That the useful data to be transmitted are transmitted via a first data line and the received useful data are transmitted via a second data line of this first digital multi- line connection. The data line 21 can also be designed as a differential signal line.
p0029Furthermore, the first digital multiconductor connection comprises a bit clock line 22, which is designed for the transmission of a clock signal, one clock period each being assigned to one bit of the data line 21. A word clock line 23, which is also assigned to the first digital multi-conductor connection, is designed to indicate the start of transmission of a sequence of bits on the data line 21. In this way, The first digital multi-conductor connection is thus realized in the exemplary embodiment as a 3-conductor connection between the baseband component 1 and the high-frequency component 3.
p0030Furthermore, the transmitting and receiving arrangement comprises a second digital multiconductor connection, which has a data line 24, which in the exemplary embodiment is designed as a bidirectional data line 24. Via the bidirectional data line 24, configuration data are transmitted from the baseband component 1 to the high-frequency component 3. Data from the high-frequency component 3 can also be transmitted via this bi-directional data line 24 to the baseband component 1, which were requested, for example, by the baseband component 1 via a special request telegram. This particular request telegram may be characterized, for example, in that a bit in the address part is used for indicating that the address is to be accessed in read-only, but read-only mode. The second digital multiconductor connection also comprises a bit clock line 25, which is designed for the transmission of a clock signal, a clock period of one bit each being also assigned to the data line 24. Further, the second digital multi-line connection comprises a word clock line 26, which is adapted to indicate the start of transmission of a sequence of bits on the data line 24.
p0031In the <figref idrefs="f0001">FIG</figref> Illustrated embodiment of the invention, the baseband component 1 is designed for processing a received signal as well as for processing a baseband signal. Likewise, the high-frequency component 3 is designed for converting the received signal into a baseband signal as well as for converting a baseband signal into a high-frequency transmission signal. The interface of the transmit path and the receive path is completely digital, and both the first and second multi-line connections are designed for bidirectional signal transmission.
p0032The bit clock line 22 and the word clock line 23 of the first digital multiconductor connection are designed for signal transmission from the high frequency component 3 to the baseband component 1. The bit clock line 25 and the word clock line 26 of the second digital multi-line connection are designed for signal transmission from the baseband component 1 to the high-frequency component 3. The synchronization line 27 as well as the digital signal line 28 are designed as unidirectional data lines and are designed for signal transmission from the baseband component 1 to the high-frequency component.
p0033Due to the completely digital design of the interface 2, the baseband component 1 can advantageously be implemented completely in digital circuit technology. In addition, the complete separation of the respectively digital user data data from the configuration data transmission allows a considerably simplified construction of the baseband component 1. This is made possible by the fact that no coupling is made between the digital signal processor DSP and the data provided by the microprocessor 11. Furthermore, the hybrid, ie, partially analogue and partial digital circuit technology customary in the baseband component is omitted in the reception path and in the transmission path.
p0034In <figref idrefs="f0001">Fig. 2</figref> An exemplary representation of signal sequences of the data line 21, the bit clock line 22 and the word clock line 23 of the first digital multi-line connection is shown. The serial transmission of the data - received user data, user data to be transmitted - via the data line 21 is thereby organized into telegrams, whereby in the present exemplary embodiment a telegram consists of 16 serial bits. The most significant bit (MSB, Most Significant Bit) is transmitted first and the least significant bit (LSB, Least Significant Bit) is transmitted last. In the present exemplary embodiment, the most significant bit is used to indicate whether the 15 lower-order bits contain payload information. It is thus characterized, Whether it is modulation bits for modulating a carrier oscillation in the high-frequency component 3 or control information, ie data for controlling the serial transmission or the type of the serial transmission, and the transport format of the useful data, ie ultimately whether it is modulation bits for Gaussian minimum shift Keying, EDGE, or other modulation modes. A modulating bit of the data line 21 is clocked into the high-frequency component 3 each with a falling clock edge of the periodic clock signal of the bit clock line 22, the so-called bit clock. The word clock signal of the word clock line 23 determines the beginning of the transmission of a telegram in that at the same time a falling clock edge occurs in bit clock with a word clock pulse. The data transmission then begins with the subsequent falling clock edge of the bit clock. Both the received user data and the useful data to be transmitted are transmitted in accordance with the method described in FIG<figref idrefs="f0001">FIG</figref> Is transferred from the high-frequency component 3 to the baseband component 1 or from the baseband component 1 to the high-frequency component 3.
p0035In <figref idrefs="f0002">FIG</figref> A time profile of the signals of the data line 24, the bit clock line 25 and the word clock line 26 of the second digital multi-line connection is shown. The second digital multiconductor connection is also designed for serial data transmission via the bidirectional data line 24. A block selection is implemented via the word clock line 26, with which the high-frequency component 3 receiving the configuration data or a partial circuit can be activated for this purpose. The transmission protocol of the configuration data via the data line 24 is also telegram-organized, whereby the telegrams can either be individual telegrams or a network of directly successive telegrams. A telegram consists of a defined number N + 1 bits, for example 24 bits, And is composed of an address part and a data part. The address part comprises K bits and is designated by ADR, while the data part is denoted by DTA and comprises N-K + 1 bits. In the case of a telegram link which transmits data to successive addresses, the address part can be omitted if the initial address is known to the receiver. The address then determines the destination location, for example a function block to which the data are to be transmitted in the high-frequency component 3. For the transmission of a telegram network, a special configuration telegram can be used which, before starting a telegram network, defines the beginning, the length and the start / destination address of the network. A telegram link serves, for example, to set the basic configuration of the transmission arrangement in a time-efficient manner. When transmitting individual telegrams, the time of the telegram transmission generally also determines the time at which the new setting or the configuration of the transmitting and receiving arrangement is activated. Data from the high-frequency component 3 can also be transmitted via the bidirectional data line 24 to the baseband component 1, which were previously requested by the baseband component 1 via a special request telegram. This request telegram may, for example, be designed in such a way that a bit in the address part is used for display in order to access the address in a non-writing but reading manner. Data from the high-frequency component 3 can also be transmitted via the bidirectional data line 24 to the baseband component 1, which were previously requested by the baseband component 1 via a special request telegram. This request telegram may, for example, be designed in such a way that a bit in the address part is used for display in order to access the address in a non-writing but reading manner. Data from the high-frequency component 3 can also be transmitted via the bidirectional data line 24 to the baseband component 1, which were previously requested by the baseband component 1 via a special request telegram. This request telegram may, for example, be designed in such a way that a bit in the address part is used for display in order to access the address in a non-writing but reading manner.
p0036How to use the <figref idrefs="f0001">FIGS</figref> and <figref idrefs="f0002">3</figref> In the grouping with the block diagram in <figref idrefs="f0001">FIG</figref> The microprocessor 11 can transmit transmission parameters to the high-frequency component 3 independently of a useful data transmission at times defined by it, without the digital signal processor DSP being influenced or even its processing or transmission of useful data being interrupted. This results in a substantial simplification of the temporal sequence as well as the sequence control in the baseband component 1.
p0037In <figref idrefs="f0002">FIG</figref> Is the connection between the transmission of user data, configuration data and synchronization data, as well as the basic progression of the transmission power of a GSM - compliant transmission signal from <figref idrefs="f0001">FIG</figref> Respectively. The user data to be transmitted or the useful data received are thereby transmitted via the first digital multi-conductor connection (data line 21, bit clock line 22 and word clock line 23). The configuration data is transmitted via the second digital multiconductor connection (data line 24, bit clock line 25 and word clock line 26). The synchronization information is transmitted via the synchronization line 27. First, the high-frequency component 3 is connected via the digital signal line 28 (<figref idrefs="f0001">FIG</figref>), And all the configuration data necessary for the transmission are transmitted to the high-frequency component 3 via the data line 24 of the second digital multi- If a sufficient number of modulation bits are written into the output buffer of the baseband component 1, a start signal can be given to the high-frequency component 3 via the synchronization line 27 in order to request the modulation data from the baseband component 1 and start with the modulation and the transmission. A rising edge, for example, characterizes the beginning of the transmission and a falling edge an end of a transmission time slot (burst). In the<figref idrefs="f0002">FIG</figref> The time t is indicated<sub>1</sub> The start of the transmission of configuration data and the time t<sub>3</sub> The end of the transmission of these configuration data. The time t<sub>2</sub> Denotes the beginning of the transmission of useful information (received user data or user data to be transmitted) and the time t<sub>6</sub> The end of the transmission of this payload. In the signal profile of the synchronization line 27, the time t is designated<sub>4</sub> The start of the modulator and the time t<sub>7</sub> Initiating a transmit pulse end. Furthermore, in the signal profile of the transmit signal SSI, the instant t<sub>5</sub> Which characterizes the start of an up-power ramp and a time t<sub>8th</sub> Representing the end of a down-power ramp. In a corresponding manner, the reception signals of the reception path are also determined by the signals received in FIG<figref idrefs="f0001">FIG</figref> And can be processed according to the signal traces in FIG <figref idrefs="f0002">FIG</figref> In time.
p0038The device according to the invention can be designed as a receiving arrangement or as a transmitting and receiving arrangement. It is essential that, in the case of a reception arrangement, the interface of the receiving path is executed digitally. If the device is designed as a transmitting and receiving arrangement, both the interface of the transmitting path and the interface of the receiving path are configured digitally. In this case, the first and second multi-conductor connections are advantageously designed for bidirectional data transmission. The useful data to be transmitted and the useful data received are transmitted to the baseband component 1 and the high-frequency component 3 by the bidirectional data line of the first digital multi-conductor connection.
2 sheets
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Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| WO02075947A | Cites | World Intellectual Property Organization (WIPO) |
| WO02091601A | Cites | World Intellectual Property Organization (WIPO) |
| US5867535A | Cites | United States of America |
| US2002193140A1 | Cites | United States of America |
| LUCENT: "W7020 BLUETOOTH RADIO MODULE" LUCENT TECHNOLOGIES, BELL LABS INNOVATIONS, Dezember 1999 (1999-12), XP002207699 | Non-patent | – |
10 members in 5 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 10301303 | Germany | – | |
| 10301303 | Germany | A | |
| 2004000041 | Germany | W |
Members10
| Document | Office | Kind | |
|---|---|---|---|
| DE10301303A1 | Germany | A1 | |
| WO2004066515A1 | World Intellectual Property Organization (WIPO) | A1 | |
| DE10301303B4 | Germany | B4 | |
| EP1586168A1 | European Patent Office (EPO) | A1 | |
| DE112004000468D2 | Germany | D2 | |
| US2006013324A1 | United States of America | A1 | |
| JP2006522502A | Japan | A | |
| US7386059B2 | United States of America | B2 | |
| JP4173516B2 | Japan | B2 | |
| EP1586168B1This record | European Patent Office (EPO) | B1 |
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Numbers
- Publication
- 1586168
- Application
- 47022819
Titles3
- German
- VORRICHTUNG IN EINER MOBILSTATION ZUM VERBINDEN EINES BASISBANDBAUTEILS UND EINES HOCHFREQUENZBAUTEILS MIT EINER DIGITALEN SCHNITTSTELLE
- English
- DEVICE IN A MOBLE STATION FOR INTERCONNECTING A BASEBAND MODULE AND A HIGH FREQUENCY MODULE BY A DIGITAL INTERFACE
- French
- DISPOSITIF DANS UNE STATION MOBILE PERMETTANT DE RELIER UN COMPOSANT BANDE DE BASE ET UN COMPOSANT HAUTE FREQUENCE A UNE INTERFACE NUMERIQUE
Classification
- CPC, 2
- H04B1/40
- H04B1/28
- IPC, 3
- H04B1 40
- H04B1 28
- H04Q7 32
Designated states3
- Contracting states, 3
- Germany
- France
- United Kingdom
