Circuit device and method

Abstract

Provided is a circuit device that can adjust signal parameters of a plurality of signals transmitted between more than one terminal and more than one antenna. The circuit device is configured to separate a common signal path for the plurality of signals into a plurality of individual signal paths, wherein more than two of the plurality of signal paths are configured to carry different single signals. A signal adjustment unit is configured to independently adjust more than one signal parameter for more than two single signals.

Description

[0001] Related Applications

[0002] This application claims the benefit of priority of U.S. Provisional Application No. 63 / 104,042, filed Oct. 22, 2020, which is hereby incorporated by reference in its entirety. Field of the Invention

[0003] The present disclosure relates to the field of adjusting signal parameters, and more particularly to the field of adjusting signal parameters of radio signals to be transmitted by an antenna. Background Art

[0004] Circuit arrangements for attenuation, compensation or signal amplification are well known. For example, a compensation unit in the field of wireless technology is used to compensate for the attenuation of radio signals between a terminal and an antenna. Document DE102007004911A1 discloses a circuit arrangement for compensating for attenuation occurring in a plurality of signal paths between a transceiver device for radio communication and an external antenna used with the transceiver device.

[0005] Document DE102009027358A1 discloses a circuit for a plurality of signal branches in a circuit arrangement having multi-band capabilities.

[0006] Document DE102013207898A1 discloses a circuit arrangement for compensating for signal attenuation during signal transmission, having: an adjustable signal level amplification device including more than one signal amplifier for amplifying a transmitted signal using a signal amplification generated by the signal amplifier; an adjustment device for adjusting a signal amplification resulting from the adjustable signal level amplification device; a detector device designed to detect whether a signal level of the transmitted signal reaches or exceeds a predetermined upper limit value and whether the signal level reaches or falls below a predetermined lower limit value. The detector device is designed to cause the adjustment device to reduce the signal amplification resulting from the adjustable signal level amplification device when the upper limit value is reached or exceeded. The detector device is also designed to cause the adjustment device to reduce the signal amplification resulting from the adjustable signal level amplification device when the lower limit value is reached or undershot.

[0007] Document DE102017219690A1 discloses a method and a device for amplifying a radio signal between a terminal and an antenna or an antenna terminal by means of a circuit device. The circuit device includes an amplification unit and a detector unit having a plurality of signal branches formed for different frequency ranges, as well as a power detector unit. A transmission signal received by the terminal is divided into a first signal part and one or more second signal parts. The first signal part is applied to the plurality of signal branches of the detector unit. In other words, an active transmission band can be identified and transmitted in an active signal path, and a second transmission band can be detected.

[0008] However, as solved by DE102013207898A1, in mobile communications, devices are dimensioned to operate under well-defined power conditions defined by an upper power threshold and a lower power threshold. An amplification should be dimensioned to compensate for a maximum attenuation.

[0009] There is a system requirement for a mobile communication system that all terminals transmit signals with the same received field strength for the same base station to minimize interference between different signals and different terminals. However, in a coverage area of a base station, the distances between multiple terminals and a base station may be different, which results in different field strengths. Thus, an adjustment of the amplification for each individual terminal (and for each active signal for communication) may be necessary.

[0010] This system requirement becomes even more challenging when multiple signals are used for communication between more than one terminal and more than one base station. For example, updated mobile communication standards such as UMTS, LTE or 5G New Radio are used for a single data transmission to different base stations located in different geographical locations. In addition, the number of terminals, the number of antennas per base station and the number of base stations are highly flexible. Furthermore, in a double connectivity mode, even multiple standards for data transmission may be different for a single data transmission, such as the non-standalone (NSA) mode, in which LTE and 5G New Radio are combined for a dedicated data transmission for one terminal.

[0011] The current state of the art discloses a circuit device in which one (or more) signal paths (branches) are activated to enable reception and transmission of signals in multiple frequency bands. However, in each of the known approaches, there is only one signal path that supports a single band in an uplink mode. In addition, the known approaches are restricted to compensating for the coupling loss of only one applied (activated) call signal at a time. Summary of the Invention

[0012] The present disclosure provides a separate adjustment of more than one signal path in a circuit device for data transmission in the same or different frequency bands. This adjustment can be independent of whether the radio signal is an uplink signal or a downlink signal, enabling complete flexibility of the circuit device. For example, it is possible to achieve a gain level or power level for multiple channels in the same band (intra-band) or different bands (inter-band). In addition, it allows multiple signal paths to be adjusted separately, and any attenuation (such as the attenuation of radio signals caused by cable loss or a wireless coupler when using a terminal in a vehicle) can be compensated according to their corresponding losses.

[0013] Various embodiments include providing a circuit device that can adjust multiple signals transmitted between more than one terminal and more than one antenna. The circuit device includes: a detection unit configured to detect more than one signal parameter of the multiple signals; a control unit configured to generate more than one control signal based on the detected more than one signal parameter; a signal adjustment unit including a signal path separation unit configured to separate a common signal path for the multiple signals into multiple individual signal paths, wherein two single signal paths among the multiple signal paths are configured to carry different single signals of the multiple received signals, and wherein the signal adjustment unit is configured to: receive the multiple signals at a first port of the signal adjustment unit; receive the more than one control signal from the control unit; adjust a characteristic value of more than one component in more than one of the multiple individual signal paths arranged in the signal adjustment unit for independently adjusting more than one signal parameter for the two single signals based on the more than one control signal to obtain multiple signals including the two single signals with the adjusted signal parameters; and provide the obtained multiple signals including the two single signals with the adjusted signal parameters to more than one second port of the signal adjustment unit.

[0014] Other embodiments include a method for adjusting signal parameters of a plurality of signals transmitted between more than one terminal and more than one antenna. The method includes the following steps: detecting, by a detection unit of a circuit device, more than one signal parameter of the plurality of signals; generating, by a control unit of the circuit device, more than one control signal based on the detected more than one signal parameter; receiving, by a signal adjustment unit of the circuit device, the plurality of signals; receiving, by the signal adjustment unit of the circuit device, the more than one control signal from the control unit; separating, by a signal path separation unit that is part of the signal adjustment unit of the circuit device, a common signal path for the plurality of signals into a plurality of individual signal paths, wherein two signal paths of the plurality of signal paths carry different individual signals among the received plurality of signals; adjusting, by the signal adjustment unit of the circuit device, a characteristic value of more than one component in more than one of the plurality of individual signal paths for independently adjusting more than one signal parameter for the two individual signals based on the more than one control signal to obtain a plurality of signals including the two individual signals with the adjusted signal parameters; and providing, by the signal adjustment unit of the circuit device, the obtained plurality of signals including the two individual signals with the adjusted signal parameters.

[0015] Thereby, it is feasible to adjust the gain or attenuation or frequency range individually and independently for more than two active signals of a plurality of signals.

[0016] In the case where these more than two active signals among the plurality of signals have different coupling factors due to different origins, this independent adjustment can be helpful or necessary. Now, the gain or attenuation can be adjusted independently.

[0017] In one example, more than two distinct signals among the plurality of signals are to be transmitted to a base station but may have different free space attenuations that result in different power levels, and this independent adjustment may be necessary.

[0018] In another example, two active distinct signals of the plurality of signals are to be transmitted to different base stations (e.g., in a heterogeneous network (“HetNet”) or when a dual-connectivity mode is applied), and this independent adjustment can be required. Here, the free space attenuations are different, and the output power levels can be adjusted independently.

[0019] In another example, in an inter-band carrier aggregation data transmission scheme where two different frequency channels of a base station have different channel performances, such independent adjustment may be necessary. For example, a low-band signal and a high-band signal of two different frequency channels with different channel attenuations or different coupling factors for interface terminals of a base station may be allocated.

[0020] As can be appreciated from the above discussion, in some embodiments, instead of adjusting more than two of the plurality of signals, only one of the plurality of signals is adjusted (perhaps because the other signals do not require adjustment). BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is illustrated by way of example and not limited to the accompanying drawings, in which like reference numerals indicate like components, and in which:

[0022] Figure 1 A simplified block diagram of a circuit device according to an exemplary embodiment is shown.

[0023] Figure 2 A simplified block diagram of a circuit device according to an exemplary embodiment is shown.

[0024] Figure 3 A simplified block diagram of a circuit device according to an exemplary embodiment is shown.

[0025] Figure 4 A simplified block diagram of a circuit device with carrier aggregation according to an exemplary embodiment is shown.

[0026] Figure 4a A simplified block diagram of a circuit device with carrier aggregation according to an exemplary embodiment is shown.

[0027] Figure 5a A simplified block diagram of a tunable filter unit with an adjustable frequency range according to an exemplary embodiment is shown.

[0028] Figure 5b Shows Figure 5a The respective transmission functions of an embodiment of the tunable filter shown.

[0029] Figure 6 A flowchart of a method for adjusting signal parameters according to an exemplary embodiment is shown.

[0030] Figure 7 A simplified block diagram of a circuit device with detector details according to an exemplary embodiment is shown.

[0031] Figure 8Shows a signal transmission scheme with three frequency bands according to an exemplary embodiment.

[0032] Figure 9 Shows a signal transmission scheme for one frequency band with two channels according to an exemplary embodiment. Detailed Description

[0033] The following detailed description illustrates exemplary embodiments and is not intended to be limited to the explicitly disclosed combinations. Thus, unless otherwise specified, the features disclosed herein may be combined to form additional variations not shown for the purpose of brevity. Unless otherwise specified, the features disclosed herein may be combined together to form additional combinations not shown for the purpose of conciseness.

[0034] Figure 1 Shows an exemplary embodiment of a circuit device B. The circuit device B can be located between a terminal A and an antenna C as an intermediate signal processing component. The terminal A can represent a plurality of terminals (not shown) that can communicate in parallel with the circuit device B. The antenna B can represent a plurality of antennas (not shown) that can communicate in parallel with the circuit device B.

[0035] The circuit device B can be used to transmit a plurality of uplink signals and / or downlink signals between the terminal A and the antenna C.

[0036] The circuit device B can include a detection unit 1. As Figure 1 shown, the detection unit can include a first input port, and the first input port can be coupled to a signal path carrying a plurality of (uplink) signals that can be arranged between the terminal A and a signal adjustment unit 6.

[0037] The detection unit can include a second input port, and the second input port is coupled to a signal path carrying a plurality of (downlink) signals that can be arranged between the antenna C and the signal adjustment unit 6. In one embodiment, it may be sufficient that the detection unit 1 includes only one input port, and the only one input port is coupled to the signal path that can be arranged between the terminal A and the signal adjustment unit 6 or is coupled to the signal path that can be arranged between the antenna C and the signal adjustment unit 6. In another embodiment ( Figure 1 not shown), the detection unit can be arranged in the signal adjustment unit 6.

[0038] The detection unit 1 (regardless of its specific location) can be configured to detect more than one signal parameter. The signal can be one of an uplink signal and / or a downlink signal. The detection unit can be described, for example, in DE102014213933A1 or DE102017219690A1 or as in the following Figures 7 to 9arranged and / or formed as shown and described. The detection unit 1 can identify signals within a predefined frequency range, such as the frequency band and / or frequency channels of a specified communication standard that transmits corresponding uplink signals / downlink signals. A signal analysis of the detected uplink signal / downlink signal can additionally be performed to obtain signal parameters and / or identify a standard, such as an analysis of the time course of the uplink signal / downlink signal. It can be determined whether an uplink signal / downlink signal is detected according to a TDD method or an FDD method.

[0039] A criterion for generating more than one control signal can be the frequency range of the specifically detected transmission signal (e.g., the number of frequency bands). Another criterion can be the detected frequency bandwidth that should be used and on which the characteristic values (cut-off frequency, bandwidth, etc.) of a filter unit can be adjusted. Another criterion can be the detected FDD or TDD scheme, which defines the time sequence or simultaneity (time values) of transmitting and receiving signals. Another criterion can be the detected or measured spectral power density, which defines the allowable input and output levels and on the basis of which the attenuation value or gain value as a characteristic value can be adjusted.

[0040] The circuit device B can include a control unit 2. The control unit 2 can have a control input that can be connected to an output of the detection unit 1. The control unit 2 can be configured to generate more than one control signal based on the detected more than one signal parameter and provide the more than one control signal to more than one output port of the control unit 2.

[0041] The generated control signal can be a digital representation of the detected signal parameter, provided to the signal adjustment unit 6 to adjust the characteristic value of more than one component for adjusting the signal parameter.

[0042] The generated control signal can be the result of a comparison that can be made by the detection unit 1 or the control unit 2, and the result of the comparison can be provided to the signal adjustment unit 6 to adjust the characteristic value of more than one component for adjusting the signal parameter.

[0043] The generated control signal can be a generated adjustment command based on the detected signal parameter, and the generated adjustment command is provided to the signal adjustment unit 6 to adjust the characteristic value of more than one component for adjusting the signal parameter.

[0044] The generated control signal may include parameter information for the signal adjustment unit 6 to adjust a characteristic value of one or more components for adjusting signal parameters. The control signal may be derived from a converted version of the detected signal parameters.

[0045] The circuit device B may include the signal adjustment unit 6. The signal adjustment unit 6 may include a signal path separation unit (not shown), which may be configured to separate a common signal path for a plurality of signals into a plurality of individual signal paths, wherein two or more of the plurality of signal paths are configured to carry different single signals among the received plurality of signals. The signal adjustment unit 6 may be configured to receive the plurality of signals at a first port of the signal adjustment unit 6. The signal adjustment unit 6 may also be configured to receive one or more control signals from one or more output ports of the control unit 2 at one or more control input ports of the signal adjustment unit 6. The signal adjustment unit 6 may also be configured to adjust a characteristic value of one or more components ( Figure 1 (not shown), which are arranged in one or more of the plurality of individual signal paths of the signal adjustment unit, for independently adjusting one or more signal parameters for two or more single signals among the received plurality of signals based on the received one or more control signals to obtain a plurality of adjusted signals. This means that the control signal may include sufficient information to directly or indirectly adjust the signal parameters of two or more distinct signals among the plurality of signals. The signal adjustment unit 6 may also be configured to provide the plurality of signals having one or more adjusted signal parameters to one or more second ports of the signal adjustment unit 6.

[0046] The circuit device B is capable of performing a signal parameter adjustment, such as power adjustment of two or more signals in a single (separate) mode in one frequency band (intra-band) or different frequency bands (inter-band). By utilizing separately adjusted multi-signal paths and their adverse signal criteria (such as attenuation, crosstalk, interference) which can be compensated according to their corresponding coupling losses between the terminal A and the antenna C, this new concept can overcome the constraint of compensating only the coupling loss of one applied signal each time.

[0047] The adjustment of the signal parameters may be made independently of whether the signal whose signal parameters are to be adjusted is an uplink signal or a downlink signal. This allows the following scenarios.

[0048] In the case where two (active) uplink signals are transmitted in different frequency bands (= inter-band carrier aggregation), an adjustment of the downlink signal can be made to balance the uplink signal and the downlink signal. For example, if the circuit device is located close to the base station to which the uplink signal should be transmitted, for example if a lower threshold is undershot, the two uplink signals can be attenuated by means of more than one attenuation unit (as a component). For example, if the circuit device is located far from the base station to which the uplink signal should be transmitted, if an upper threshold is exceeded, the downlink signal can be not attenuated by means of more than one attenuation unit (as a component) and only the uplink signal can be attenuated by means of more than one attenuation unit (as a component).

[0049] In another case where two (active) uplink signals can be transmitted in different channels (e.g., different component carriers) of the same frequency band (= intra-band carrier aggregation), a plurality of channel filter units as complex components can be used to separate the two channels. The characteristic values of these channel filter units can be adjusted. For example, if the circuit device is located close to the base station to which the uplink signal should be transmitted, for example if a lower threshold is undershot, the two uplink signals can be attenuated. For example, if the circuit device is located far from the base station to which the uplink signal should be transmitted, if an upper threshold is exceeded, the downlink signal can be not attenuated and only the uplink signal can be attenuated.

[0050] If the terminal initiates a signal transmission (e.g., a phone call), the detection unit can initiate an operation and can monitor the detected frequency range (such as a frequency band or a frequency channel) of the signal as well as the power value and / or the time value. Based on the detected signal parameters, the signal adjustment unit can initiate an adjustment to adjust the characteristic values (such as gain, attenuation, frequency range, activation state (of an activation unit) and further antenna selection) of a plurality of individual components to meet predefined requirements (such as maximum power level, minimum power level, channel bandwidth, etc.).

[0051] Figure 2 Shows another exemplary embodiment of a circuit device B. In particular, Figure 2 Shows a schematic block diagram of a circuit device B for transmitting uplink signals and downlink signals between more than one terminal A and two antennas C. Although Figure 2 not shown, the circuit device B is capable of transmitting uplink signals and downlink signals between a plurality of terminals A and a plurality of antennas C. In such an alternative embodiment ( Figure 2 not shown), there can be a terminal interface 4 connected to a plurality of terminals A.

[0052] The circuit device B can be configured to enable a wireless or a wired signal to be connected to the terminal A. In addition, the circuit device B can include a plurality of antenna interfaces 5, and each of the plurality of antennas C can be connected to one of the plurality of antenna interfaces 5. In an alternative embodiment ( Figure 2 not shown), there can be one antenna interface 5 that can be connected to the plurality of antennas C.

[0053] The circuit device B can include several signal paths SPs, where, in Figure 2 , the first signal path SP1, a second signal path SP2, and an nth signal path SPn are exemplarily visualized. In Figure 2 , these signal paths SPs can be uplink signal paths or downlink signal paths. The circuit device B is capable of two-way signal transmission, that is, uplink signals and downlink signals. In the case where a signal path SP is not in use (not required), then that signal path SP can be deactivated. In the case where a further signal path SP is needed (required), then that further signal path SP can be activated. For the activation and deactivation of signal paths, amplifiers, attenuators, switches, and / or filter units are employed. Different amplifiers can be used for an uplink signal path and a downlink signal path.

[0054] Figure 2 The shown signal paths SP1,..., SPn can be specifically used for frequency range-specified uplink paths and / or downlink paths.

[0055] For example, signals in a frequency range from 832 MHz to 862 MHz (the first uplink frequency range, 3GPP FDD Mobile Band 20) can be transmitted via the first uplink path SP1, and signals in a frequency range from 791 MHz to 821 MHz (the first downlink frequency range, 3GPP FDD Mobile Band 20) can be transmitted via a first downlink path ( Figure 2 not shown).

[0056] For example, signals in a frequency range from 880 MHz to 915 MHz (the second uplink frequency range, 3GPP FDD Mobile Radio Band 8) can be transmitted via the second uplink path SP2, and signals in a frequency range from 925 MHz to 960 MHz (the second downlink frequency range, 3GPP FDD Mobile Radio Band 8) can be transmitted via a second downlink path ( Figure 2 not shown).

[0057] For example, a signal in a frequency range from 2570 MHz to 2620 MHz (the n-th uplink frequency range, TDD Mobile Radio Band 38) can be transmitted via the n-th uplink path SPn, while a signal in the frequency range from 2570 MHz to 2620 MHz (the n-th downlink frequency range, TDD Mobile Radio Band 38) can be transmitted via an n-th downlink path ( Figure 2 not shown). Further signal paths SP can be established accordingly for signals transmitted from other mobile radio bands (such as Band 1, Band 3, Band 5, Band 40, or other bands).

[0058] The signal adjustment unit 6 is shown in dashed lines and includes, as components, exemplary N signal adjustment units 6a, 6b, 6n. Each signal adjustment unit 6a, 6b, 6n can be arranged in a respective uplink path and / or downlink path SP1, SP2, SPn. However, each signal path SP can also be arranged with multiple signal adjustment units (see Figure 3 ). With these signal adjustment units 6a, 6b, 6n, a signal parameter of a signal transmitted via the corresponding signal paths SP1, SP2, SPn can be adjusted by adjusting a characteristic value of the signal adjustment units 6a, 6b, 6n. The signals to be adjusted can be transmitted from a terminal interface (not shown) to the antenna interface 5 of the circuit device B.

[0059] The signal adjustment units 6a, 6b, 6n can serve to activate and deactivate the signal paths SP1, SP2, SPn.

[0060] The signal adjustment units 6a, 6b, 6n can be part of an amplifier section and / or a filter section and / or an attenuation section and / or a switching unit of the signal adjustment unit 6. Each signal adjustment unit 6a, 6b, 6n can be respectively arranged in a frequency range - specified section of the signal paths SP1, SP2, SPn, and each of these frequency range - specified sections serves to transmit an uplink signal from exactly one uplink frequency range or serves to transmit a downlink signal from exactly one downlink frequency range.

[0061] Figure 2 The control unit 2 of the circuit device B is also shown. The control unit 2 can be a microcontroller. With the control unit 2, each signal adjustment unit 6a, 6b, 6n can be controlled using respective control signals generated by the control unit 2. In other words, the control unit 2 can generate respective control signals to adjust a characteristic value of one or more signal adjustment units 6a, 6b, 6n of the signal adjustment unit 6 in the signal paths SP1, SP2, and / or SPn. In Figure 2In this case, N distinct control signals can be generated by the control unit 2, and each of these control signals can be provided to one of the signal adjustment units 6a, 6b, 6n. However, other arrangements are also feasible. The signal adjustment units 6a, 6b, 6n can share a common control signal ( Figure 2 not shown).

[0062] For example, with the help of the control unit 2, through the generated control signals, one of the signal adjustment units 6a, 6b, 6n can be activated and / or deactivated. In the activated state of one of the signal adjustment units 6a, 6b, 6n, the corresponding signal paths SP1, SP2, SPn can be activated and signal transmission via the corresponding uplink path or downlink path SP1, SP2, SPn is feasible. In the activated state, the respective characteristic values of the signal adjustment units 6a, 6b, 6n can be a fixed value (predetermined) or variable (adjustable). In the deactivated state of one of the signal adjustment units 6a, 6b, 6n, the corresponding signal paths SP1, SP2, SPn can be deactivated and signal transmission via the corresponding uplink path or downlink path SP1, SP2, SPn can be infeasible or highly attenuated (above a threshold attenuation, such as 50 dB or 100 dB).

[0063] For example, with the help of the control unit 2, through the generated control signals, one of the signal adjustment units 6a, 6b, 6n can be gain-controlled. If a gain value, which is a characteristic value of one of the signal adjustment units 6a, 6b, 6n, should be increased, the control signals respectively send a respective gain increase command to the signal adjustment units 6a, 6b, 6n and an amplitude value or power value, which is a signal parameter of a signal transmitted via the corresponding signal paths SP1, SP2, SPn, is increased by increasing the gain of the signal path. If a gain value, which is a characteristic value of one of the signal adjustment units 6a, 6b, 6n, should be decreased, the control signals respectively send a respective gain decrease command to the signal adjustment units 6a, 6b, 6n and an amplitude value or power value, which is a signal parameter of a signal transmitted via the corresponding signal paths SP1, SP2, SPn, can be decreased by decreasing the gain of the signal path. The gain parameters for the respective signal adjustment units 6a, 6b, 6n can be a fixed value (predetermined) or variable (adjustable).

[0064] For example, with the aid of the control unit 2, by means of the generated control signal, one of the adjustment units 6a, 6b, 6n can be controlled for attenuation. If an attenuation value, which is a characteristic value of one of the signal adjustment units 6a, 6b, 6n, should be increased, the control signal can respectively send a respective attenuation increase command to the signal adjustment units 6a, 6b, 6n and an amplitude value or a power value, which is a signal parameter of a signal transmitted via the corresponding signal paths SP1, SP2, SPn, can be reduced by increasing the attenuation value of the signal path. If an attenuation value, which is a characteristic value of one of the signal adjustment units 6a, 6b, 6n, should be decreased, the control signal can respectively send a respective attenuation decrease command to the signal adjustment units 6a, 6b, 6n and an amplitude value or a power value, which is a signal parameter of a signal transmitted via the corresponding signal paths SP1, SP2, SPn, can be increased by decreasing the attenuation value of the signal path. The attenuation parameter for the respective signal adjustment units 6a, 6b, 6n can be a fixed value (predetermined) or variable (adjustable).

[0065] For example, with the aid of the control unit 2, by means of the generated control signal, a frequency range value, which is a characteristic value of the adjustment units 6a, 6b, 6n, can be controlled. If a frequency range value, which is a characteristic value of one of the signal adjustment units 6a, 6b, 6n (such as a cut-off frequency, a frequency bandwidth, a slope), should be adjusted, the control signal can respectively send a respective command to the signal adjustment units 6a, 6b, 6n and the corresponding frequency values, which are characteristic values of the corresponding signal paths SP1, SP2, SPn, can be adjusted. The adjustment of the frequency value of the signal path can be a prerequisite for the adjustment of the power value of the signal transmitted via the signal paths SP1, SP2, SPn. If a frequency range value, which is a characteristic value of one of the signal adjustment units 6a, 6b, 6n, should be set to a specified value (such as a cut-off frequency, a frequency bandwidth, a slope), the control signal respectively sends a respective command to the signal adjustment units 6a, 6b, 6n and the corresponding power values, which are signal parameters of a signal transmitted via the corresponding signal paths SP1, SP2, SPn, will be set. Thus, the frequency range value, which is a characteristic value for the respective signal adjustment units 6a, 6b, 6n, can be a fixed value (predetermined) or variable (adjustable).

[0066] Figure 2 It is also shown that the circuit arrangement B can include two signal separation units 3, where the signal separation unit 3 is preferably designed as a multiplexer for providing a plurality of uplink paths and / or downlink paths. In particular, a first multiplexer can be arranged at the antenna interface 5 and a second multiplexer can be arranged at the terminal interface 4. The multiplexer can be used as a frequency band splitter.

[0067] The signal separation unit 3 may include a plurality of filter devices, a low-pass filter, a band-pass filter, and a high-pass filter, as well as power dividers, switches, circulators, or other components (such as components designed as duplexers, diplexers, triplexers, etc.), to filter out the downlink signals transmitted via the downlink path ( Figure 2 not shown) from an antenna interface 5. The antenna signal derived from the antenna interface 5 may be transmitted by a base station (not shown) and received by one or two antennas C.

[0068] The signal separation unit 3 can also be used as a signal combiner. This allows uplink signals or downlink signals transmitted via the uplink and / or downlink paths SP1, SP2, SPn to be combined to form more than one resulting signal, and the more than one resulting signal is then transmitted to the antenna interface 5. The combined signal can then be transmitted by an antenna C to, for example, a base station (not shown).

[0069] Another signal separation unit 3 (arranged at the terminal interface 4) can be used as a band splitter. In particular, the other signal separation unit 3 also includes several filter devices, such as a low-pass filter, several band-pass filters, and a high-pass filter, as well as power splitters, switches, circulators, or other components (such as components designed as duplexers, diplexers, triplexers, etc.), to filter out more than one uplink signal transmitted by a terminal A (e.g., via a terminal interface ( Figure 2 not shown)) via the uplink paths SP1, SP2, SPn. The other signal separation unit 3 can also be used as a signal combiner. In particular, uplink signals and / or downlink signals transmitted via respective uplink paths and / or downlink paths ( Figure 2 not shown) can be combined into more than one resulting signal, and the more than one resulting signal is then transmitted to the terminal A.

[0070] Also shown is that the circuit device B may include a detection unit 1, and the detection unit 1 has an output port connected to the control unit 2. A detection unit 1 shown in dashed lines may additionally or alternatively be included in the circuit device B. The detection unit 1 can be arranged on a common signal path near the output port for the terminal A and / or on a common signal path near the output port for the antenna C.

[0071] Additionally or alternatively, the detection unit can be arranged at one or more of the plurality of signal paths SP (an uplink signal path or a downlink signal path).

[0072] The detection unit 1 may include a signal coupling unit (as part of item 1 in Figure 2 ), and the signal coupling unit can be designed as a directional coupler or a power splitter, for example. The signal path connected to an input port of the detection unit 1 connects terminal A to the other signal separation unit 3. This signal path can be a section of a downlink signal path or an uplink signal path, and thus this section can be designed as a signal path section that is not designated for the frequency range and has, for example, a broadband signal frequency range. With the detection unit 1, it can be detected whether more than one uplink signal and / or downlink signal exists on the signal path between terminal A and the other separation unit 3. Additionally, a total power value can be detected by the detection unit 1 as a signal parameter of multiple signals. Figure 2 An exemplary embodiment of the circuit device B shown may include a detection unit 1 capable of detecting and identifying uplink signals and / or downlink signals.

[0073] The uplink signal can be generated by terminal A and received by a terminal interface. In addition, the uplink signal, particularly the uplink frequency range and / or transmission standard of the uplink signal, can be identified by the detection unit 1 for signal transmission adjustment.

[0074] For example, if an uplink signal from a first uplink frequency range is detected and identified by the detection unit 1, the signal adjustment unit 6a on the first uplink path SP1 can be activated and the characteristic values of the signal adjustment unit 6a can be adjusted, particularly by using a control signal generated by the control unit 2. In this way, an activated state of the first uplink path SP1 is established and adjusted to a preferred signal parameter value.

[0075] It is feasible that, depending on a previously known assignment between different uplink signals and / or downlink paths, the control unit 2 adjusts the characteristic values of the signal adjustment units 6a, 6b, 6n. The control unit 2 then adjusts the characteristic values of the corresponding signal adjustment units 6a, 6b, 6n accordingly. For example, the assignment can be stored in a storage device (not shown) of the circuit device B, particularly in the control unit 2.

[0076] Furthermore, it is feasible that if an uplink signal has been detected, a further uplink signal can be added. One or more of the signal adjustment units 6a, 6b, 6n can then be activated and / or adjusted for their respective signal paths SP1, SP2, SPn by the control unit 2.

[0077] For example, it is feasible that two or more signal adjustment units 6a, 6b, 6n will be activated and adjusted if an uplink signal is accurately detected by the detection unit 1. However, it is also feasible that in such a case, one or more signal adjustment units 6a, 6b, 6n can be deactivated.

[0078] Figure 2 The circuit device B may further include one or more additional signal processing devices for uplink signal detection (not shown).

[0079] Figure 3 A schematic block diagram of a circuit device B is shown in a further form, the circuit device B being for transmitting uplink signals and downlink signals between one or more terminals A and one or more antennas C. Figure 3 Only one terminal A and one antenna C are shown, whereby the circuit device B can transmit uplink signals and downlink signals between the terminal A and the antenna C. Figure 3 The circuit device B shown is substantially designed like Figure 2 the circuit device B shown. Therefore, in order to avoid unnecessary repetition, Figure 2 the corresponding explanations for Figure 3 are also valid, unless otherwise stated.

[0080] Additionally, a terminal interface 4 may be arranged between the terminal A and the signal adjustment unit 6. The terminal interface 4 can establish a wired or wireless transmission to / from the terminal A.

[0081] Additionally, an optional attenuation unit 7 may be arranged between the terminal interface 4 and a signal path separation unit 3, the signal path separation unit 3 being represented as a filter - bank 31 in Figure 3 this.

[0082] Compared with Figure 2 the embodiment shown, the antenna C may be part of the circuit device B and thus, the circuit device B may include the antenna C. For simplicity, the circuit device B exemplarily includes two uplink signal paths SP1, SP2 and one downlink signal path SP3. The number of uplink signal paths or downlink signal paths is not limited in this specification.

[0083] In Figure 3 this, it is shown that the detection unit 1 is shown as a signal coupler 11 and a signal parameter detector 12. The signal coupler 11 may be located on a common signal path between the terminal interface 4 and the optional attenuation unit 7.

[0084] The optional attenuation unit 7 may have an adjustable attenuation value as an eigenvalue to adjust the total attenuation value of a plurality of signals (all signals), so that the respective signal parameters of all signals among the plurality of signals transmitted between the terminal A and the antenna C can be adjusted at one time. This is a non-independent adjustment of signal parameters and is different from the independent adjustment of more than one signal parameter for more than two signals.

[0085] The control unit 2 may also generate a control signal that can be directly applied to the attenuation unit 7. Thus, the attenuation unit 7 can be controlled via the control unit 2, in particular, to adjust an attenuation factor in a common signal path through which all signals among the plurality of signals are transmitted. The common signal path may be established between the terminal-side interface 4 and a terminal-side port of the attenuation unit 7. The common signal path may alternatively or additionally be established between the antenna-side interface 5 and an antenna-side port of the separation unit 3 (here the filter bank 31), and the attenuation unit 7 may be located there ( Figure 3 not shown). Regardless of the specific location of the attenuation unit 7, the attenuation unit 7 is configured to attenuate each of the plurality of signals at one time using the adjustable attenuation factor adjusted by the control unit 2.

[0086] In an alternative embodiment ( Figure 3 not shown), the signal coupler 11 can be arranged at different positions within the circuit device B. For example, it is feasible that the signal coupler 11 can be arranged and / or designed in such a way that a signal is coupled out from a further connection signal path located between the antenna interface 5 and the first separation unit 3. In addition, a plurality of signal couplers 11 can be arranged and / or designed in such a way that signals from parts of the uplink signal paths SP1, SP2, SP3 are decoupled.

[0087] The adjustment unit 6 is shown in more detail in Figure 3 . The adjustable (tunable) filter units 61a, 61b, 61c in the signal adjustment unit 6 can be arranged alternatively or additionally in the respective signal paths SP1, SP2, SP3. With the aid of these tunable filter units 61a, 61b, 61c, the frequency range value as an eigenvalue of each signal path can be adjusted, so that the power value as a signal parameter of the signals transmitted via the corresponding paths SP1,..., SP3 can be independently adjusted (tuned).

[0088] Tunable filter units 61a, 61b, 61c, which can be part of a filter section 61 of the signal conditioning section 6, are respectively arranged in a frequency range specifying section of signal paths SP1, SP2, SP3, and these frequency range specifying sections each serve to transmit signals from exactly one frequency range. A tunable frequency range value, which is an eigenvalue of a tunable filter unit 61a, 61b, 61c, can be a cut-off frequency value (maximum and / or minimum), a frequency bandwidth value, a frequency channel value, and / or a frequency band value.

[0089] Power level setting units 62a, 62b, 62c in the signal conditioning section 6 can alternatively or additionally be arranged in respective signal paths SP1, SP2, SP3. With these power level setting units 62a, 62b, 62c, a gain value or an attenuation value, which is an eigenvalue, can be set and / or adjusted for each signal path SP1, SP2, SP3 to independently adjust a power level or an amplitude level of a signal transmitted via the corresponding signal path SP1,..., SP3.

[0090] In operation, the detection unit 1 can detect a frequency range and a power value of a channel (e.g., a component carrier). The control unit 2 can adjust a filter unit according to the detected signal frequency range. Additionally, the control unit can adjust a gain value or an attenuation value of a power level setting unit corresponding to the detected signal parameters (e.g., power, timing, frequency value). Thus, the gain values or power values of two or more signals will be adjusted. This operation can be applied to a data transmission (inter-band or intra-band carrier aggregation or dual connectivity) for uplink signals and / or downlink signals using more than one frequency channel.

[0091] The following operation scenarios may occur:

[0092] 1) For example, if the detection unit 1 detects that the input power of one or more of the plurality of signals exceeds or undershoots a predefined power value, all signal paths can be individually adjusted such that the gain values of the respective power level setting units 62a, 62b, 62c are decreased (if it is an excess) or increased (if it is an undershoot) or the attenuation values of the respective power level setting units 62a, 62b, 62c are increased (if it is an excess) or decreased (if it is an undershoot) to protect the circuit device B from excessive power, which may cause damage to components of the circuit device B due to heat dissipation, for example.

[0093] 2) For example, if the detection unit 1 detects that the input power of a specified signal among the multiple signals exceeds or undershoots a predefined value, the signal path can be adjusted such that the gain value of each of the power level setting units 62a, 62b, 62c is reduced or the attenuation value of each of the power level setting units 62a, 62b, 62c is increased to protect the circuit device B from excessive power, which may cause damage to components of the circuit device B due to heat dissipation, for example.

[0094] 3) For example, if the detection unit 1 detects that the input power of a specified signal interferes with other signals among the multiple signals, the power values of one or more than two signals among the multiple signals are adjusted to reduce the interference.

[0095] Figure 3 The control unit 2 of the circuit device B is also shown. The control unit 2 can be designed as a microcontroller. With the help of the control unit 2, each of the filter units 61a, 61b, 61c and / or each of the power level setting units 62a, 62b, 62c can be controlled by using respective control signals generated by the control unit 2. For example, in the activated state of the signal paths SP1, SP2, SP3, the gain value or attenuation value of the power level setting units 62a, 62b, 62c can be set or changed (adjusted). Alternatively or additionally, in the activated state of the signal paths SP1, SP2, SP3, the frequency range value of the tunable filter units 61a, 61b, 61c can be set or changed (adjustable), for example, by adjusting a minimum cut-off frequency or a maximum cut-off frequency or a bandwidth value or a slope value or an order value.

[0096] Figure 3 The circuit device B is also shown to include a filter bank 31 as a signal separation unit ( Figure 2 ). The filter bank 31 can be a multiplexer including several filter units. For example, each filter unit of the filter bank 31 can be designed as a low-pass, band-pass or high-pass filter. The filter bank 31, which is a multiplexer, can be designed to provide uplink signals and downlink signals of the multiple signals transmitted via the corresponding paths SP1, SP2, SP3.

[0097] In an embodiment ( Figure 3(not shown), the filter bank 31 may include more than one adjustable (tunable) filter unit, preferably one tunable filter unit for each distinct signal path SP1, SP2, SP3. A respective control signal for each tunable filter unit (or for more than one tunable filter unit) in the filter bank 31 may be provided by the control unit 2. In such a circuit device B, the adjustable filter units 6a - 6c can be omitted, which results in lower circuit device complexity and reduced signal attenuation.

[0098] Figure 4 FIG. shows a schematic block diagram of an exemplary embodiment of a circuit device B for transmitting two exemplary uplink signals SP1, SP2 and one downlink signal SP3 between more than one terminal A and more than one antenna C. Figure 4 The shown circuit device B can be built like Figure 2 or Figure 3 the shown circuit device B. Thus, to avoid unnecessary repetition, Figure 2 and Figure 3 the corresponding explanations for Figure 4 the embodiment can also be effective, unless otherwise stated.

[0099] In addition to Figure 3 the embodiment of, Figure 4 the embodiment of also shows an amplifier unit with a constant gain, the amplifier unit with a constant gain being adapted to be used as activation units 63a, 63b, 63c of a signal path activation part 63 in the signal adjustment part 6. The activation units 63a, 63b, 63c may be arranged in the respective signal paths SP1 - SP3. These activation units 63a, 63b, 63c (compared with the adjustable amplifier units 62d, 62e, 62f) may have a constant gain. When an activation unit 63a, 63b, 63c is activated, the constant gain can be applied in the corresponding signal paths SP1, SP2, SP3. With the aid of these activation units 63a, 63b, 63c, the signals transmitted via the corresponding paths SP1 - SP3 (which can be transmitted from / to the terminal interface 4 on the terminal side to / from the antenna interface 5 on the antenna side) can be served to activate and deactivate the signal paths SP1 - SP3. The activation state of the activation units 63a, 63b, 63c can be respective characteristic values.

[0100] The activation units 63a, 63b, 63c may each be arranged in a frequency range - specified part of the signal paths SP1, SP2, SP3 respectively, and each of these frequency range - specified parts serves to transmit signals from exactly one frequency range. As Figure 4As shown, when considering the respective activation units 63a, 63b, or activation unit 63c, as shown by the indicated opposite signal directions, the signal paths SP1, SP2 can be uplink signal paths while the signal path SP3 can be a downlink signal path.

[0101] Figure 4 An exemplary embodiment of a circuit device B with carrier aggregation in the uplink mode is shown. The carrier aggregation can be an inter-band carrier aggregation or an intra-band carrier aggregation that can be activated by means of a carrier aggregation selection unit 64. The carrier aggregation selection unit may further include carrier aggregation switching units 64a, 64b, 64c that can switch between an inter-band carrier aggregation as shown by the solid line or an intra-band carrier aggregation as shown by the dashed line.

[0102] The respective signal paths SP1, SP2, SP3 applicable to intra-band carrier aggregation (e.g., in band 8 with two uplink channels and one downlink channel) are shown by dashed lines. A respective switch 65 with split functionality can be used to split multiple signals into three signal paths. Each of these signal paths may include a tunable filter unit 61a, 61b, 61c as described above. Figure 3 Thus, for each of these signal paths (shown by dashed lines), a frequency channel value as an eigenvalue such as the cut-off frequency, bandwidth, etc. can be adjusted by means of the control unit 2.

[0103] In Figure 4 there are attenuation units 62g, 62h, 62i shown (instead of Figure 3 the power level setting units 62a, 62b, 62c). These attenuation units 62g, 62h, 62i in the signal adjustment unit 6 can be arranged in the respective signal paths SP1, SP2, SP3. By means of these attenuation units 62g, 62h, 62i, an attenuation value as an eigenvalue can be set and / or adjusted for each of the signal paths SP1, SP2, SP3 to independently adjust the power level or amplitude level of a signal transmitted via the corresponding signal paths SP1,..., SP3. The attenuation units 62g, 62h, 62i are located in the frequency-specified parts of the signal paths SP1, SP2, SP3. By adjusting an attenuation value as an eigenvalue, the desired attenuation can be set to adjust an amplitude value or power value as a signal parameter of the signal transmitted on these signal paths SP1, SP2, SP3.

[0104] In Figure 4In addition to the detector unit 1, a root mean square detector unit 1a may also be present. The root mean square detector unit 1a is configured to detect the root mean square level as a signal parameter of the plurality of signals. The detected signal parameter is directed to the control unit 2 for generating respective control signals.

[0105] In Figure 4a Another exemplary embodiment of a circuit device B with carrier aggregation in the above uplink mode is shown. Figure 4a The embodiment of Figure 4 is based on the embodiment of Figure 4 and the description related to the embodiment of Figure 4a may be valid for the embodiment of Figure 4 Compared with Figure 4a Variable gain amplifier units 62d, 62e, 62f may be included to replace the variable attenuation units 62g, 62h, 62i as shown in Figure 4 These variable gain amplifier units 62d, 62e, 62f in the signal adjustment section 6 may be arranged in respective signal paths SP1, SP2, SP3. With these variable gain amplifier units 62d, 62e, 62f, a gain value as a characteristic value can be set and / or adjusted for each signal path SP1, SP2, SP3 to independently adjust a power level or an amplitude level of a signal transmitted via the corresponding signal paths SP1 - SP3. The variable gain amplifier units 62d, 62e, 62f may be located in a frequency - specified portion of the signal paths SP1, SP2, SP3. By adjusting a gain value as a characteristic value, a desired gain can be set to adjust an amplitude value or a power value as a signal parameter of the signal transmitted on these signal paths SP1, SP2, SP3.

[0106] In another exemplary embodiment of a circuit device B with carrier aggregation ( Figure 4 not shown and Figure 4a not shown), both the variable gain amplifier units 62d, 62e, 62f and the variable attenuation units 62g, 62h, 62i may be arranged in respective signal paths SP1, SP2, SP3 in the signal adjustment section 6 to set and / or adjust a gain value as a characteristic value independent of an attenuation value for each signal path SP1, SP2, SP3 to independently adjust a power level or an amplitude level of a signal transmitted via the corresponding signal paths SP1 - SP3.

[0107] Figure 5a Shows that it can be used for Figures 1 to 4aAn exemplary embodiment of a tunable filter unit 61a of the above-described circuit device B. The filter unit 61a may include a low-pass filter section 61a_1 and a high-pass filter section 61a_2. Each of these two sections 61a_1, 61a_2 may have a switching element 61a_3, and the switching element 61a_3 is connected to the control unit 2 to receive a control signal generated by the control unit 2. Each switching element 61a_3 may provide a plurality of switching states adjusted (set) by the control signal provided from the control unit 2. In Figure 5a all the switching elements 61a_3 may obtain a control signal from the control unit 2 to adjust or set their switching states as characteristic values of their respective filter sections. In one embodiment, all the switching elements 61a_3 may obtain the same control signal from the control unit 2 and the results may be switched to the same switching state. This means that in a first switching state, both the low-pass filter section 61a_1 and the high-pass filter section 61a_2 may be switched to the first passive elements of their respective low-pass filter section 61a_1 and a high-pass filter section 61a_2. This means that in a second switching state, both the low-pass filter section 61a_1 and the high-pass filter section 61a_2 may be switched to the second passive elements of their respective low-pass filter section 61a_1 and high-pass filter section 61a_2. This means that in a last switching state, both the low-pass filter section 61a_1 and the high-pass filter section 61a_2 may be switched to the last passive elements of their respective low-pass filter section 61a_1 and high-pass filter section 61a_2. In another embodiment, each switching element 61a_3 obtains a different control signal from the control unit 2 and the results are switched to an individual switching state. Thus, each of the low-pass filter section 61a_1 and the high-pass filter section 61a_2 may be independently adjusted, for example, by separate control signals. The selection of the respective values for the passive inductor or capacitor elements in their respective sections leads to a specified transmission function of the filter unit 61a and as a result is in a different frequency range. In each embodiment, the control signal may be a digital switching signal to set the switching state.

[0108] Figure 5b Shows the respective transmission functions of the tunable filter unit 61a, corresponding to Figure 5a the individual switching states adjusted by the control signal of the control unit 2.

[0109] According to Figure 4 、 5a and Figure 5b, by splitting the respective uplink or downlink signals, an in-band carrier aggregation can be processed on dedicated signal paths having tunable filters 61a-c whose filter characteristics depend on the currently applied signal among the plurality of signals detected by the detector unit 1. With the attenuation units 62g, 62h, 62i, the power level of the signals can also be individually adopted. In the case of inter-band carrier aggregation, the tunable filters 61a-c may not be required.

[0110] Furthermore, it is beneficial to integrate a broadband driver and a broadband power amplifier in each of the uplink signal path and / or the downlink signal path to flexibly fulfill all exploitable carrier aggregation topologies.

[0111] According to Figures 1 to 7 The control signals generated by the control unit 2 can be digital signals. These control signals can directly carry setting or adjustment information, such as a specific characteristic value set or adjusted in a component of the signal adjustment unit 6. For example, a 7-bit signal can be used to digitize the characteristic value set or adjusted in this component.

[0112] In another embodiment, the control signal is a 1-bit control command that only represents two digital states, namely a first state (e.g., HIGH) for increasing / decreasing a characteristic value and a second state for not changing the characteristic value. Alternatively, a digital code for "increase", "hold", and "decrease" can be provided to the respective components to increase / hold / decrease the corresponding characteristic values respectively.

[0113] In one embodiment, the control signal does not carry any information about the adjusted characteristic value of the component. In this embodiment, the control signal only carries control commands based on the detected scenario.

[0114] For example, a wireless coupler (an interface of a vehicle, such as between a terminal A and an external antenna C, also referred to as a terminal interface hereinafter) may have a minimum attenuation of 3 dB and a maximum attenuation of 13 dB. Of course, other values are also feasible, and the present disclosure is not limited to such specific power values. A total amplification can be set on a scale to compensate for the maximum attenuation.

[0115] There may be a requirement that a total amplification (e.g., the sum of a circuit device of the present invention and a wireless coupling device) can be at a specified relative power level (e.g., zero dB) (an amplification value of 1). The maximum gain value will be 13 dB. A formula to be satisfied is that the output power should be equal to the sum of the input power and the difference between the gain values of the circuit device B and the wireless coupler.

[0116] Another system requirement can be a minimum / maximum power level. For the GSM 900 standard, the minimum power level is 5 dBm and the maximum power level is 33 dBm. If the wireless coupler operates at a 3 dB gain, the output power of a signal can be 15 dBm if the input power of the signal is 5 dBm. Terminal A cannot further reduce the power and thus, it may be necessary to dynamically adapt the attenuation value of that signal in circuit device B to 10 dB attenuation to ensure a power level of 5 dBm. This may be true in the case where the output power level of the terminal increases (e.g., moving towards the base station). To avoid exceeding the maximum power level, a flexible upper threshold is proposed to ensure that the upper threshold can be reached in all scenarios. For the GSM 1800 standard, the minimum power level is 0 dBm and the maximum power level is 30 dBm and respective adaptation is necessary. An adjustment of the upper and lower thresholds as disclosed in EP2992604A1 can additionally be applied, the disclosure of EP2992604A1 being incorporated by reference.

[0117] In any case, an adjustment of the individual signal parameters may be required to meet the system requirements of the power value level at a base station to ensure that the signal strength values for all signals (from different terminals) can be equal at a base station while (1) Terminal A is moving within the coverage area (e.g., when located in a moving vehicle) and (2) multiple base stations are available for a single data communication (e.g., dual connection).

[0118] Figure 6 An exemplary embodiment showing a flow of a method 100 for adjusting signal parameters of multiple signals is shown.

[0119] Multiple signals can be transmitted between more than one Terminal A and more than one Antenna C using an intermediate circuit device B as described above Figures 1 to 5b The method 100 includes the following steps: In a detection step 101, which can be performed by a circuit device B of a detection unit 1, more than one signal parameter of the currently transmitted multiple signals can be detected. In a step 102 that can directly follow step 101, one or more control signals are generated based on the detected one or more signal parameters by a control unit 2 of the circuit device B. In a step 103 that can directly follow step 102, the multiple signals having the detected one or more signal parameters are received by a signal adjustment unit 6 of the circuit device B. In a further step 104 that can directly follow step 103, one or more control signals from one or more output ports of the control unit 2 can be received by the signal adjustment unit 6 of the circuit device B. The order of the above steps 102 and step 103 can be interchanged.

[0120] In step 105, which may directly follow step 104, an eigenvalue of more than one component may be adjusted to individually adjust more than one signal parameter for more than two of the received plurality of signals based on more than one received control signal, to obtain a plurality of adjusted signals, which can be adjusted by the signal adjustment unit 6 of circuit device B. In step 106, which may directly follow step 105, the plurality of adjusted signals having more than one adjusted signal parameter may be provided by the signal adjustment unit 6 of circuit device B.

[0121] Figure 7 Shows another exemplary embodiment of a circuit device B. As Figures 1 to 4a has been described, circuit device B can be used for the transmission of uplink signals and downlink signals between a terminal device A and an antenna C. To avoid unnecessary repetition, Figures 1 to 4a the corresponding explanations in Figure 7 are also valid, unless otherwise stated. In Figure 7 an embodiment for the aforementioned detection unit 1 is described.

[0122] Figure 7 The detection unit 1 can detect a number of frequency bands (e.g., for inter-band carrier aggregation) and a number of channels in one frequency band (e.g., for intra-band carrier aggregation) and can be configured to measure the power values of these frequency bands and / or channels.

[0123] The detection unit 1 may include a signal coupler 11 and a signal parameter detector 12. The signal parameter detector 12 may include an amplifier unit 121, a mixer unit 122, a variable frequency oscillator 123, a filter 125, and a power detector 124. The amplifier unit 121 and the variable frequency oscillator 123 may be controlled by the control unit 2. The power detector 124 may output the measured power value to the control unit 2.

[0124] Now, the operation of the detection unit 1 for detecting uplink signals will be described. These uplink signals can be provided from terminal A to the signal coupler 11 via the terminal-side interface 4. A small portion of the uplink power signal can be decoupled from the signal coupler 11. This decoupled signal portion can also be processed in the signal parameter detector 12 and the control unit 2. The signal coupler 11 is preferably a directional coupler. Another type of signal coupler 11 (such as a Wilkinson divider) can be alternatively employed. The decoupled signal portion can be fed to an amplifier unit 121. The amplifier unit 121 can amplify the decoupled signal with a small amplitude and / or can attenuate the decoupled signal with a high amplitude. The output signal of the amplifier unit 121 can be fed to a mixing unit 122. The mixing unit 122 is preferably an active mixer.

[0125] In the mixing unit 122, the (amplified or attenuated) output signal of the amplifier unit 121 can be mixed with an output signal of the variable frequency oscillator 123. This mixing results in a plurality of mixed products at the output of the mixing unit 122. From this plurality of mixed products, the first-order differential product can be filtered out by means of a filter unit 125.

[0126] The frequency of the frequency oscillator 123 can be a fixed frequency. These frequencies can be generated within a predetermined grating, for example, in steps of 100 KHz. The amplifier unit 121 can output a modulated signal. The mixing process can generate a power frequency spectrum of a baseband signal as a first-order differential product. Depending on the filter bandwidth of the filter unit 125, a portion of the power frequency spectrum can be filtered out by the filter unit 125. The remaining portion of the power frequency spectrum can be measured in the power detector unit 124 as a power value of the detected signal. The measured power value can be further processed in the control unit 2 as the signal parameter of the detected signal (as explained above).

[0127] Thus, there can be a fixed relationship between the frequency of the frequency oscillator 123 and the power of the measured power detector unit 124 together with a known bandwidth of the filter unit 125.

[0128] Figure 8 and Figure 9 show two possible cases of signal detection. Figure 8The detection of signals in the mobile radio frequency bands FB1, FB2, FB3 is shown. For this purpose, the variable frequency oscillator 123 can be successively adjusted to the carrier frequencies fc1, fc2, fc3. The filter bandwidth of the filter unit 125 can be adjusted to a corresponding bandwidth of the mobile radio frequency bands FB1, FB2, FB3. If a power value level appears in the power detector unit 124, the signal present in the corresponding mobile radio frequency band FB1, FB2, FB3 is considered to be detected. Thus, it is possible to detect the uplink signals of the inter-band aggregation.

[0129] Figure 8 It is also possible, not shown, to step the frequency oscillator 123 in a certain raster (e.g., 10 MHz), while the corresponding bandwidth of the filter unit 125 traverses the mobile radio frequency range. If a power level appears at one or more of the frequency steps of the variable frequency oscillator 123 at the power detector unit 124, the corresponding signal present in the corresponding mobile radio frequency band FB1, FB2, FB3 can be considered to be detected.

[0130] Figure 9 The detection of two mobile radio channels K1, K2 in a mobile radio frequency band FB1 is shown. By stepping the variable frequency oscillator 123 in a pre-determined frequency step (e.g., 100 KHz) throughout the entire mobile radio frequency range, whereby the filter bandwidth of the filter unit 125 (e.g., 200 KHz) is higher than the pre-determined frequency step and whereby it is detected at each frequency step whether a power value level appears at the power detector unit 124, the signals of the mobile radio channels K1, K2 can be detected. Thereby, the frequency positions of the mobile radio frequency channels can be determined (see the frequencies f K1min , f K1max ; f K2min , f K2max ) and their corresponding channel bandwidths (BW K1 = f K1max - f K1min , BW K2 = f K2ma x - f K2min ) as a function of the detected power value level.

[0131] As Figure 9 shown, the channel bandwidth can vary between multiple individual channels. For example, the channel bandwidth BW K1 can be smaller than the channel bandwidth BW K2 . As Figure 9 is also shown, the position of a channel in a frequency band FB1 can be asymmetric with respect to the frequency of the band.

[0132] In Figure 9 frequency channels K1, K2 in the frequency band FB1 may be arranged with a frequency separation gap, for example, in the range of frequencies between f K1max and f K2min in the same frequency band, which is referred to as non - adjacent inter - band carrier aggregation. Figure 9 Not shown is an embodiment in which the frequency channels K1, K2 in the frequency band FB1 may be arranged directly adjacent to each other, for example, frequencies f K1max equal to f K2min in the same frequency band, which is referred to as adjacent inter - band carrier aggregation.

[0133] All features of all embodiments described, shown, and / or claimed herein can be combined with each other. An embodiment shown in a particular drawing can be used as an intermediate step for an embodiment shown in another drawing.

[0134] The obtained plurality of signals may include more than two single signals with adjusted signal parameters, and these signals may be provided at a second port of the signal adjustment unit. Signals in the received plurality of signals that are not adjusted by the circuitry (residual signals) can be disposed of in two different ways. In a first alternative, the residual signals may be provided to the second port of the signal adjustment unit without adjustment, for example, by routing these signals without further adjustment or by bypassing the signal adjustment unit. In this first alternative, the difference between the received plurality of signals and the obtained plurality of signals can be that one or more than one signal in the received plurality of signals has an adjusted signal parameter while all the remaining signals in the plurality of signals are routed without further adjustment. The number of the obtained plurality of signals may be equal to the number of the received plurality of signals.

[0135] In a second alternative, the residual signals may not be provided to the second port of the signal adjustment unit, for example, by highly attenuating these signals. In this second alternative, the difference between the received plurality of signals and the obtained plurality of signals can be that only at least two signals in the received plurality of signals with adjusted signal parameters are provided to the second port of the signal adjustment unit. The number of the obtained plurality of signals is less than the number of the received plurality of signals.

[0136] Adjustments of signal parameters for one or more than one single signal are made independently. This means that the making of an adjustment of a first signal does not affect a remaining adjustment of a second (or third, etc.) signal. This independent adjustment once and for all excludes a common adjustment of the (all) plurality of signals, such as a change in a characteristic of a common signal path that affects all signals simultaneously, such as a change in a total attenuation value or a total gain value.

[0137] In other words: the independent adjustment of the signal parameters of one or more single signals involves two distinct adjustments of more than two of these signals. Additionally, a common adjustment of the signal parameters for all of the received multiple signals can be processed at once, such as a common attenuation or a common amplification all at once.

[0138] A signal parameter of a signal defines a signal performance of that signal. The signal parameter can be one or more of a discrete frequency value and / or a frequency range value (such as a bandwidth value), an amplitude value and / or a power value (such as a signal strength), and / or a timing value (burst signal or continuous signal) for more than one signal among the received signals.

[0139] A timing value as a signal parameter can be that the signal is a pulse signal, for example if the signal is a time division duplex (TDD) signal. A timing value as a signal parameter can be that the signal is a continuous signal, for example if the signal is a frequency division duplex (FDD) signal. A timing value as a signal parameter can be an uplink period or a downlink period or a change in the uplink period or the downlink period.

[0140] The independent adjustment involves one or more of these signal parameters. Thus, the adjustment of a first signal parameter (such as a first frequency value or a first amplitude value or a first power value) for a first signal is independent of the adjustment of a second signal parameter (such as a second frequency value or a second amplitude value or a second power value) for a second signal.

[0141] A component of the signal adjustment unit is an element located at or in a signal path of the signal adjustment unit (i.e., between the antenna and the terminal). The component has a characteristic value that can be adjusted based on more than one control signal. The characteristic value is, for example, an adjustable parameter or a preference of the component.

[0142] A characteristic value of a component of the signal adjustment unit can define a performance of that component. If the component is an amplification unit, the characteristic value can be an amplification value. If the component is a gain unit (also called an amplification unit), the characteristic value can be a gain value. If the component is an attenuation unit, the characteristic value can be an attenuation value. If the component is a filter unit, the characteristic value can be a frequency value, a frequency range value, an order of the filter unit, and / or a slope. If the component is an activation unit, the characteristic value can be an activation state. If the component is a switching unit, the characteristic value can be a switching state.

[0143] The eigenvalue(s) may be one or more of a gain value and / or an attenuation value and / or a switching state (or a corresponding device / unit) and / or a frequency value and / or a frequency range value of that component. A gain value and / or an attenuation value as an eigenvalue may be obtained by comparing the detected signal parameter with a respective reference signal parameter pre-stored in the circuit device or calculated by the control unit in terms of an amplitude value or a power value.

[0144] Additionally or alternatively, the detected signal parameter may be or may include information about one or more discrete frequencies (such as a center frequency, a lower cut-off frequency, an upper cut-off frequency), a frequency range (bandwidth value), and / or a frequency channel value of the currently received multiple signals. The signal parameter may be information capable of identifying which frequency band or channel is used by the multiple signals. In this regard, an inter-band carrier aggregation or an intra-band carrier aggregation or a dual connection can be detected. The respective detection at the detection unit may provide information required to generate a control signal.

[0145] Preferably, the detection of the one or more frequency ranges may include the detection of a first frequency range, where the first frequency range may include one or more frequency channels in a first mobile communication band.

[0146] The detection of the one or more frequency ranges may include the detection of a second frequency range, where the second frequency range may include one or more frequency channels in the first mobile communication band and / or in one or more second mobile communication bands.

[0147] Thus, one or more signal parameters of the multiple signals may be evaluated by the control unit. It is feasible that the one or more signal parameters are determined by the control unit itself or provided with the aid of the detection unit. The one or more signal parameters can be, for example, one or more signal power values. A signal power value can be particularly represented by a signal level value. It is feasible that the signal parameter (signal performance) should be determined for a predetermined period before it can become a valid signal parameter.

[0148] For example, it is feasible that the signal performance is compared with a predetermined threshold. Other forms of evaluation are also possible.

[0149] In a preferred embodiment, the one or more control signals may be provided by the control unit to one or more output ports of the control unit. The one or more output ports may be an input port for another signal (such as a detector signal provided to the control unit for a duration during which the one or more control signals may not be provided to the signal adjustment unit).

[0150] In a preferred embodiment, the one or more control signals may be received by the signal adjustment unit from one or more output ports of the control unit.

[0151] In a preferred embodiment, the one or more control signals may be received by the signal adjustment unit at one or more control input ports of the signal adjustment unit.

[0152] The detection of a signal parameter may be the result of a detection unit of an entity and may cause different control signals to be generated by the control unit. Different detection units that can cause different control signal generations may be used. For example, a detection unit may be used to detect whether a power level exceeds a maximum threshold. If a power level is exceeded, the detection unit may cause a control signal to be generated to limit a power level value or adjust a gain value to protect the circuit device and avoid any damage. Alternatively or additionally, multiple detection units may be used to detect input power characteristics at a terminal interface of the circuit device and / or detect output power characteristics at an antenna interface to ensure that signal parameters meet the requirements for protecting the circuit device and for protecting a respective receiving unit (such as a base station or a terminal) to which the multiple signals should be directed.

[0153] When detecting one or more signal parameters of the multiple signals, the independent adjustment of the one or more signal parameters for the two or more signals may then preferably directly, and then for each individual signal processing. This means that respective two signals may be adjusted at (slightly) different time points to affect the transmission characteristics of the two or more signals in a signal transmission (= data transmission) of the received multiple signals via the circuit device. This subsequent processing may be caused by employing a single-threaded processor as the control unit. Such a control unit may generate only one control signal per time unit. However, such subsequent processing may still be implemented as a quasi-parallel processing, for example if high clock rates are applied. The processing of the independent adjustment may be caused by utilizing a microcontroller as a control unit. Such a control unit may generate a distinct control signal in one time unit. Thus, the control unit generates a first control signal in a first time unit and a second control signal in a second time unit. A subsequent processing of the generated signals can still be regarded as a quasi-parallel processing, for example if high clock rates are applied or if several control lines are simultaneously set.

[0154] When detecting more than one signal parameter of the plurality of signals, independent adjustment of the more than one signal parameter can be made for each individual signal in a time-parallel manner, preferably quasi-synchronously. This means that two respective signals can be adjusted at the same time in an adjustment scenario to affect the transmission characteristics of one or more than one of the signals of the plurality of received signals via a signal transmission of the circuit device. This quasi-parallel processing can be caused by using a multi-threaded processor as the control unit. Such a control unit can generate more than one control signal per time unit.

[0155] Before adjustment, a detection can be processed, in which the signal parameters of all signals are collected and the adjustment is made as a subsequent step. Alternatively, the detection can also be made in a time-parallel manner for each signal path and the adjustment can be made based on each signal path when detecting the signal parameters.

[0156] When detecting a signal parameter of a first signal among the plurality of signals, adjustment of the eigenvalue of a first component can be processed, in which when detecting a signal parameter of a second signal among the plurality of signals, adjustment of the eigenvalue of a second component can be processed. Thus, a signal path can be adjusted during the detection of the second signal.

[0157] When detecting a signal parameter of a first signal among the plurality of signals, adjustment of the eigenvalue of a first component arranged in a first signal path of the plurality of individual signal paths and adjustment of the eigenvalues of more than one second component arranged in a second signal path of the plurality of individual signal paths can be processed. Thus, once a signal parameter of a first signal can be detected, more than two signal paths are immediately adjusted.

[0158] The circuit device proposed herein is capable of transmitting uplink signals and downlink signals between more than one terminal and more than one antenna. Such a circuit device can compensate for losses in the transmission of these uplink signals and downlink signals (such as insertion losses caused by multiple components, such as attenuation caused by a transmission cable or by a coupling factor of a general high-frequency coupler at the terminal-side interface or the antenna-side interface), and can separately regulate out more than two individual signals among the plurality of signals in a multi-signal path environment.

[0159] The adjustment scheme applied by the circuit device can occur during the actual transmission of the plurality of signals. Thus, the plurality of signals can be adjusted during the operation of the circuit device (such as when transmitting a signal between an antenna and a terminal). In this way, the signal transmission between the antenna and the terminal can be observed and corrected (adjusted) accordingly by the circuit device.

[0160] The circuit device can be a compensation unit (compensator) for a plurality of uplink and downlink radio signals. Such a compensation unit can be used to compensate for any attenuation that occurs during signal transmission between a terminal and an antenna. The attenuation can be caused by transmission cables and / or other coupling losses (e.g., when the antenna can be arranged outside the terminal (e.g., in a vehicle)).

[0161] The plurality of signals can be uplink radio signals and downlink radio signals of a mobile communication radio standard, and the uplink radio signals and downlink radio signals have uplink frequency bands and / or downlink frequency bands according to one radio standard or different radio standards (e.g., a GSM standard, a UMTS standard, an LTE standard, a WIFI, and / or a 5G New Radio standard).

[0162] A use case for such a circuit device can be that it operates as a mobile radio compensation unit (compensator) used in a motor vehicle, and it can serve to compensate for a signal attenuation during signal transmission of a plurality of uplink radio signals and downlink radio signals from or to a mobile device and a motor vehicle. Since a vehicle acts as a Faraday cage in terms of signal transmission, the quality of service of mobile communication originating from or terminating at a terminal located inside the vehicle may be reduced. By using the circuit device disclosed herein, compensation for losses, an increase in the radio cell radius, an increase in data throughout the edge of the radio cell, and / or an increase in the quality of service can be achieved.

[0163] A terminal can be a mobile device, such as a terminal that can be carried by a user. Such a mobile device can be a mobile phone or a tablet computer or a laptop computer. Additionally, a terminal can be a modem or a control device. The terminal can be permanently installed in another larger entity (e.g., a vehicle or a production site or a machine). The terminal can be a telematic device in a vehicle.

[0164] In modern communication schemes, a plurality of signals are used for signal transmission between two communication nodes. The plurality of signals can be referred to as a plurality of frequency carriers, and each carrier can carry information (such as voice or data) to exchange this information between a terminal and an antenna via the circuit device in a time - efficient manner with no significant loss. The signals have a frequency range value as a signal parameter. These signals are preferably radio signals having a carrier frequency within a predefined frequency band (in - band communication) within the frequency range or having a carrier frequency in more than one predefined frequency band (inter - band communication) within the frequency range.

[0165] In other words: A frequency range may include multiple frequency bands for transmitting multiple signals. A frequency band may include multiple channels.

[0166] Hereinafter, the term frequency channel may specifically refer to a carrier of information. Each channel may be located in a frequency range (sub-band) that may include only a portion of the frequencies of the frequency band.

[0167] In an LTE or New Radio system, such a frequency channel may be referred to as a "component carrier". An LTE component carrier may have a specified bandwidth of 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, or 20 MHz. For the New Radio system, other bandwidths may also be specified.

[0168] Carrier aggregation may be defined by utilizing more than two frequency channels for data transmission.

[0169] Some of the multiple signals may be synchronously transmitted on different frequency channels of a frequency band, which can be referred to as in-band carrier aggregation. Some of the multiple signals may be transmitted on different frequency channels of a frequency band in a time-division multiplexing manner, which can also be referred to as in-band carrier aggregation.

[0170] Some of the multiple signals may be synchronously transmitted on different frequency channels of different frequency bands (from the same base station), which can also be referred to as inter-band carrier aggregation. Some of the multiple signals may be transmitted on different frequency channels of different frequency bands in a time-division multiplexing manner, which can be referred to as inter-band carrier aggregation.

[0171] Some of the multiple signals may be transmitted in multiple different frequency bands by different base stations, which is called dual connectivity. A 5G network that supports all modes of spectrum aggregation may be closely linked to an LTE network and may adopt a dual-connectivity technology in a so-called non-standalone 5G network. In such a scenario, the non-standalone 5G network relies on an LTE core network and can implement a radio access network by adding a 5G carrier. In dual connectivity, one of the multiple signals may be transmitted via an LTE base station (eNodeB) and another signal that is time-parallel among the multiple signals may be transmitted via a 5G base station (gNodeB). Dual connectivity should not be confused with dynamic spectrum sharing (DSS), which allows an operator to provide LTE and 5G simultaneously in a frequency band.

[0172] A frequency band or a channel may be accurately assigned a carrier frequency, such as the center of the frequency band / channel. A frequency band or a channel may be assigned a carrier frequency and several sub-carrier frequencies. Thus, in the case of LTE, a frequency band may be divided into multiple component carriers. Each component carrier may be assigned a carrier frequency.

[0173] A general detection unit can be used to identify signal parameters. The detection unit is configured to detect more than one signal parameter of a plurality of uplink signals and / or downlink signals. A detection unit as described in DE102014213933A1 or DE102017219690A1 can be employed.

[0174] In one embodiment, a detector unit that functions based on the principles of frequency synthesis and frequency mixing can be used. Thus, different frequency bands or frequency channels can be identified as to which ones are more than one adjustable frequency assigned to a frequency oscillator and which ones are generated by a circuit device to identify the currently used frequency band. If, for an adjustable frequency of the frequency oscillator, it is determined that the signal parameters (signal performance) satisfy a certain criterion (for example, a signal power value of the signal is greater than a given threshold power value), then the frequency band assigned to the adjustable frequency can be identified as a frequency band or the channel assigned to the adjustable frequency can be identified as a frequency channel.

[0175] Subsequent to such identification of a specified frequency band or frequency channel in which a signal can be transmitted, a new identification of another frequency band or another frequency channel in which another signal is transmitted can be initiated. This can be an advantageous way to identify different frequency bands and / or frequency channels used in inter-band carrier aggregation and intra-band carrier aggregation. In this way, an available frequency range can be scanned to identify used or unused frequency bands or frequency channels.

[0176] A frequency range can be a value that defines a range of frequency scales (i.e., the range of the electromagnetic spectrum of electromagnetic waves for technical communication) and has a certain bandwidth. The frequency range can be defined by a distinct frequency value (such as the lowest frequency value within the range) and a bandwidth value. The frequency range can be defined as a range of (all) frequency values within a lowest frequency value and an upper frequency value. A frequency band refers to a frequency sub-range.

[0177] A frequency range can be, by way of example, a single frequency channel in a mobile communication band, multiple frequency channels in a mobile communication band, a sum of multiple frequency channels in a mobile communication band, a single mobile communication band, multiple mobile communication bands, or one of multiple frequency channels in multiple mobile communication bands.

[0178] The detection of a frequency range value can include the detection of more than two frequency channels in more than one mobile communication band. In the case where more than two frequency channels are detected to be in one frequency band, intra-band carrier aggregation can be detected. In the case where more than two frequency channels are detected to be in more than two frequency bands, inter-band carrier aggregation or dual connectivity mode can be detected.

[0179] In a preferred embodiment, a plurality of uplink signals can be transmitted by the circuit device. Thus, the plurality of signals can be a plurality of uplink radio signals, wherein a first port of the signal conditioning unit is an input port for receiving a plurality of uplink signals generated by more than one terminal, and wherein a second port of the signal conditioning unit is an output port for providing the plurality of uplink signals with adjusted signal parameters to the more than one antenna.

[0180] The uplink signals can be transmitted in the same or different frequency channels. Frequency channels with carrier frequencies from the same frequency band or from mutual uplink frequency bands can be used between the terminal and the antenna. If a frequency channel with a carrier frequency located in one uplink frequency band is used, an in-band uplink carrier aggregation can be applied. These frequency channels in one frequency band can be arranged close to each other. In this case, the respective channel bandwidths of directly subsequent frequency channels are directly adjacent without a frequency gap, which is also referred to as adjacent in-band uplink carrier aggregation. Alternatively, these frequency channels in one frequency band can be arranged with a frequency separation in the same frequency band, which is referred to as non-adjacent in-band uplink carrier aggregation. If frequency channels for uplink signals with carrier frequencies located in different frequency bands are used, an inter-band uplink carrier aggregation or a dual-connectivity mode can be applied.

[0181] An uplink path can be a signal path capable of transmitting an uplink signal from a terminal via the circuit device to the antenna. In particular, the uplink signal can be a signal of a terminal interface generated by the terminal and transmitted to the circuit device.

[0182] A plurality of downlink signals can be transmitted by the circuit device. Thus, the plurality of signals can be a plurality of downlink signals, wherein a second port of the signal conditioning unit is an input port for receiving a plurality of downlink radio signals via more than one antenna, and wherein a first port of the signal conditioning unit is an output port for providing the plurality of downlink signals with adjusted signal parameters to the more than one terminal.

[0183] Downlink signals can be transmitted in the same or different frequency channels. Frequency channels with carrier frequencies from the same frequency band or from different downlink frequency bands can be used between the terminal and the antenna. If a frequency channel with a carrier frequency located in a downlink frequency band is used, then in-band downlink carrier aggregation can be applied. These frequency channels in a frequency band can be arranged close to each other. In this case, the respective channel bandwidths of directly subsequent frequency channels (e.g., component carriers) are directly adjacent without a frequency gap, which is also referred to as contiguous in-band downlink carrier aggregation. Alternatively, these frequency channels (e.g., component carriers) in a frequency band can be arranged with a frequency separation in the same frequency band, which is referred to as non-contiguous in-band downlink carrier aggregation. If frequency channels for downlink signals with carrier frequencies located in different frequency bands are used, then inter-band downlink carrier aggregation or dual connectivity mode can be applied.

[0184] A downlink path can be a signal path capable of transmitting a downlink signal from the antenna via the circuit device to the terminal. In particular, the downlink signal can be a signal received from the antenna, such as a signal provided by a base station.

[0185] Different uplink frequency bands and / or downlink frequency bands can be used to transmit uplink signals and / or downlink signals between the terminal and the antenna according to one radio standard or different radio standards. For example, such a standard can be a GSM standard, a UMTS standard, an LTE standard, a WIFI or 5G standard. Thus, an uplink frequency band and / or a downlink frequency band can be assigned to exactly one standard but can also be assigned to several standards. This makes it possible to transmit uplink signals and / or downlink signals according to different standards in the same uplink frequency band and / or downlink frequency band, respectively.

[0186] Furthermore, signal processing means can be arranged in an uplink path and / or a downlink path to increase the signal transmission quality. Such signal transmission can be routed by active and / or passive signal processing means via more than one of the above-mentioned signal paths. The signal transmission can be carried out via the signal adjustment section of the circuit device, and the signal adjustment section can include a plurality of signal adjustment units for each downlink and / or uplink signal path. Each signal adjustment unit can further include more than one amplifier unit, an attenuation unit, a filter unit, and / or a signal switching element.

[0187] The signal adjustment section of the circuit device can include a signal separation unit configured to separate a common signal path on which a plurality of signals are provided into a plurality of individual signal paths. Each signal path can be configured to carry a single signal of the plurality of signals.

[0188] Accordingly, the circuit device may include means, in particular a signal separation unit, for providing a terminal-originated uplink signal applied to the terminal interface via the circuit device. These means may be or include filter means, power splitters, circulators, switching means, demultiplexers, etc. These means may be arranged and / or formed in such a way as to filter out and / or demultiplex a signal with a frequency in an uplink frequency range or a plurality of uplink frequency ranges from the plurality of signals provided by the terminal. An uplink signal provided in this way may be transmitted via a corresponding uplink signal path. A means for providing an uplink signal or a part thereof may include means for combining signals (preferably formed with frequencies from different frequency ranges, more preferably formed by different uplink signals). For example, the plurality of signals are divided into a first uplink signal and a second uplink signal that are at least partially routed via different uplink paths in the circuit device.

[0189] Accordingly, the circuit device may include means, in particular a signal path separation unit, for providing a terminal-dedicated downlink signal applied to the antenna reception of the circuit device via the antenna interface. The means may be arranged and / or formed in such a way as to filter out and / or divide a signal with a frequency in a downlink frequency range or a plurality of downlink frequency ranges from the plurality of signals provided by the antenna. A downlink signal filtered out and / or divided in this way may be transmitted via a corresponding downlink path. A means for providing a downlink signal or a part thereof may include means for combining signals (preferably formed with frequencies from different frequency ranges, more preferably formed by different downlink signals). For example, the plurality of signals are divided into a first downlink signal and a second downlink signal that are at least partially routed via different downlink paths in the circuit device.

[0190] In addition, the circuit device may further include means for combining signals (in particular signals transmitted on different, preferably frequency range-specified uplink paths or path sections, or signals transmitted on different, preferably frequency range-specified downlink paths or path sections).

[0191] The signal path separation unit may include one or more of the following: a multiplexer unit, a demultiplexer, a filter bank, a switching unit, a splitting unit (such as a frequency splitting unit or a power splitting unit), a circulator unit, and / or a switch with a multi-splitting function.

[0192] Thus, in order to share a common signal path, uplink signals and downlink signals can be transmitted in a time duplexing process (which can also be referred to as a TDD process (time division duplexing process)) or in a frequency duplexing process (which can also be referred to as an FDD process (frequency division duplexing process)).

[0193] The signal path separation unit may include a filter bank. The filter bank may be formed in such a way that a plurality of (input) signals of the filter bank are filtered into signals in exactly one uplink frequency range or exactly one downlink frequency range, or are filtered into more than one of the plurality of output signals of the filter bank. Such a filter bank serves to provide a single signal (frequency) band that is subsequently transmitted via a signal path or section specified by a frequency range. Thus, such a signal path or section may include such a filter bank.

[0194] A filter bank may be formed by a frequency multiplexer. The frequency multiplexer can be used to frequency-selectively divide a plurality of (input) signals into (exactly) two or more output signals of the frequency multiplexer. In particular, a frequency multiplexer splits a plurality of (input) signals containing signals of different frequencies into more than two output signals, each including a different sub-range of the frequency range of the plurality of (input) signals. Vice versa, the frequency multiplexer can also be used to combine exactly two or more input signals of different frequency ranges into exactly one output signal. For example, such a frequency multiplexer may be a so-called diplexer, triplexer, quadplexer, hexaplexer, etc.

[0195] Alternatively or additionally, the signal path separation section for providing a single uplink signal / downlink signal may include one or more splitters, such as a power splitter. With the splitter, a plurality of signals can be split into more than two individual (output) signals. Each of the (output) signals can cover the same frequency range as the input signal. In addition, the splitter can be used to combine exactly two or more individual signals into exactly one (output) signal. In one embodiment, one or more splitters can be arranged in an uplink path or a downlink path.

[0196] A filter bank and / or a splitter may be arranged in a plurality of downlink signal paths or uplink signal paths, preferably in a common path section of a plurality of downlink signal paths or uplink signal paths. This can enable reliable provision of the desired uplink signal or downlink signal. Compared with a solution using discrete components, signal attenuation is reduced, and the installation space requirement and manufacturing cost are reduced.

[0197] The circuit device may include one or more first uplink signal paths for the transmission of a first uplink signal. Preferably, the circuit device further includes one or more additional uplink paths for the transmission of an additional uplink signal.

[0198] The circuit device may include a first downlink path for the transmission of a first downlink signal. The circuit device may include one or more additional other downlink paths for the transmission of another downlink signal.

[0199] A signal path may be a signal path not assigned to a frequency range. A signal path not assigned to a frequency range can be arranged and / or formed in such a way that signals from all downlink frequency ranges or uplink frequency ranges can be transmitted via this signal path.

[0200] A signal path can be a signal path assigned to a frequency range or can include a signal path portion assigned to a frequency range. A signal path or portion assigned to a frequency range can be arranged and / or formed in such a way that signals from exactly one or from several but not all downlink frequency ranges or uplink frequency ranges can be transmitted via this signal path.

[0201] A signal path may include several signal path portions that are different from each other and may be assigned with respect to the frequency range. In particular, a signal path may include: a first portion that serves to transmit a signal of one downlink or uplink frequency range; and an additional (second) portion that serves to transmit a signal from several downlink or uplink frequency ranges.

[0202] Multiple signal paths may exist, which can be arranged and / or formed in such a way that signals from only a first downlink or uplink frequency range can be transmitted via a first signal path and signals from only an additional downlink or uplink frequency range can be transmitted via the one or more additional (second) signal paths, where the first and the additional frequency ranges may be different frequency ranges. Thus, signals of different standards can be transmitted via different signal paths.

[0203] A signal path portion may have a common signal path portion of mutually different signal paths. Such a signal path portion can be used for the transmission of a signal from several or even all uplink frequency ranges and downlink frequency ranges.

[0204] Thus, an uplink signal path or a downlink signal path may include several signal path portions. In the following description, a signal path may also be referred to as a portion of a signal path.

[0205] The circuit device may include a terminal-side interface. This can be an interface for establishing a signal connection between the circuit device and a terminal. The interface enables two-way signal transmission. For example, the terminal-side interface includes a wireless coupler to enable wireless communication with the terminal.

[0206] The circuit device may include more than one antenna-side interface. This can be an interface for establishing a signal connection between the circuit device and more than one antenna. The antenna can be an external antenna. However, in one embodiment of the circuit device, the antenna is part of the circuit device. The antenna can be used to transmit / receive signals to / from a base station or other device. The antenna-side interface enables two-way signal transmission.

[0207] The circuit device can be located in a vehicle (such as a car or a truck). In this case, the external antenna can be a vehicle antenna.

[0208] The circuit device can be part of a mobile wireless amplification device or can include or form a mobile wireless amplification device.

[0209] The generation of the control signal can be based on the detected signal parameters. This includes generating a control signal by obtaining control information (such as a control command) based on the detected signal parameters. Additionally or alternatively, the generation includes a comparison of more than one detected signal parameter with more than one reference value (such as a threshold).

[0210] The control unit of the circuit device can be one of a plurality of control and evaluation units. The control unit can be a computing unit capable of calculating or comparing detected signal parameters and evaluating the necessary adjustment values. The control unit is preferably a microcontroller or an integrated circuit.

[0211] The detection unit as described herein for detecting more than one signal parameter and the control unit for providing more than one control signal can be at least partially integrated into one control unit.

[0212] The control signal can be generated based on the detected parameters, which includes that the signal can be provided to the control unit to notify the control unit that a certain signal parameter exceeds / undershoots a certain threshold.

[0213] The control signal can include an adjustment command to adjust the characteristic value of the component to a desired value, for example, the characteristic value to be adjusted will have a specific (numerical) value that will cause the signal parameter to be adjusted to a desired value.

[0214] Additionally or alternatively, the control signal may include a simpler command, such as an "increase" or "decrease" command that will cause a respective increase / decrease of the desired eigenvalue to be adjusted.

[0215] The one or more generated control signals may be interpretable by the signal adjustment unit or one of its respective devices / units.

[0216] The adjustment of the signal parameters may be performed by increasing or decreasing a characteristic value of the components in the signal adjustment unit.

[0217] The adjustment of the signal parameters may be performed by changing (adjusting) a configuration that is a characteristic value of the components in the signal adjustment unit.

[0218] The one or more control signals may be provided at the control port of the control unit. There may be a one-to-one relationship where each control signal is provided to one control port. Each of the control signals may be input to one (distinct) component in the signal adjustment unit. Alternatively, one control signal may be input to multiple components in the signal adjustment unit.

[0219] One control signal may be used to adjust one or more characteristic values of one or more components in the signal adjustment unit, and the one or more characteristic values are used to adjust a signal parameter of one or two or more of the multiple signals.

[0220] The one or more characteristic values of one or more components in the signal adjustment unit for adjusting a signal parameter of the one or two or more signals may be adjusted independently. Thus, the control signal may include information for individually adjusting two of the multiple signals. In a preferred embodiment, each signal parameter of the two signals may be adjusted based on a distinct control signal generated by the control unit.

[0221] In a preferred embodiment, a signal coupler of the detection unit may be configured to decouple a part of the received multiple signals to a signal parameter detector of the detection unit to detect one or more signal parameters of the multiple signals. A detection unit described in DE102014213933A1 or DE102017219690A1 may be employed.

[0222] The decoupling may occur from a signal path arranged between a terminal interface of the circuit device and a first port of the signal adjustment unit.

[0223] The decoupling may occur from a signal path arranged between an antenna interface of the circuit device and a second port of the signal adjustment unit.

[0224] There may be more than two signal couplers arranged in the circuit device. In one embodiment, there may be two signal couplers adjacent to each other between a terminal interface of the circuit device and a first port of the signal adjustment unit. These different signal couplers can be used to generate different control signals as explained above.

[0225] There may be more than two signal couplers arranged in the circuit device. In one embodiment, there may be two signal couplers adjacent to each other between an antenna interface of the circuit device and a second port of the signal adjustment unit to decouple different signal portions in parallel in an uplink mode.

[0226] The detection unit may include a root mean square detector to obtain a root mean square of the plurality of signals or a root mean square of each signal of the plurality of signals.

[0227] The detection unit can, for example, detect more than one uplink signal or more than one downlink signal. For example, the detection unit can be arranged and / or formed as described in DE102014213933A1 or DE102017219690A1. The device for detecting the uplink signal and / or the downlink signal can also identify the frequency range of the corresponding uplink signal / downlink signal and / or the presence of a transmission standard of the detected uplink signal / downlink signal. A further signal analysis of the uplink signal / downlink signal can be performed to identify a standard, for example, an analysis of the time course of the uplink signal / downlink signal. It can be determined according to a TDD method or an FDD method whether an uplink signal / downlink signal is detected.

[0228] The signal coupler can be arranged and / or designed in such a way that a signal applied to the circuit device is decoupled. The design of a suitable signal coupler is known and will not be discussed in more detail here. In particular, the signal coupler can provide a decoupled signal with lower power than the transmitted signal, whereby the decoupled signal would otherwise have the same signal performance as the transmitted signal.

[0229] The circuit device may include more than one signal coupler for providing a decoupled uplink signal or downlink signal. For example, the signal coupler can decouple an uplink signal transmitted by an uplink path from the uplink path. Accordingly, the signal coupler can also decouple a downlink signal transmitted via a downlink path from the downlink path. Alternatively, one signal coupler can decouple signals bidirectionally regardless of the transmission direction (uplink or downlink) from the detection unit to the control unit.

[0230] Additional signal processing devices may be arranged in an uplink path and / or a downlink path of one of the plurality of signals. Transmission of each signal may be performed by an active and / or passive signal processing device via one of these signal paths. For example, signal transmission can be carried out via more than one amplifier unit and / or more than one attenuator unit and / or more than one signal filter unit and / or more than one signal switching unit.

[0231] A port can be used as an interface between different units to enable multiple signal paths to be connected to transmit signals between these units. A port is not necessarily restricted to a connection point. A port can include, for example, multiple connection points, such as when signal transmission includes more than one signal path.

[0232] The signal adjustment unit may include a filter unit. The filter unit may have more than one tunable filter unit as the component, preferably multiple tunable filter units as the component. Each filter unit is capable of adjusting a frequency range value as an eigenvalue.

[0233] In this document, each filter unit can be a component in the signal processing of the circuit device and can be used to remove some unwanted frequencies or unwanted frequency ranges as eigenvalues from more than one signal of the plurality of signals by the control signal. The filter unit may include multiple different filter types that can be combined. The combination of different filter types can be adjusted as an eigenvalue by the control signal. One type of filter can be a low-pass filter that allows low frequencies to pass but attenuates high frequencies. Another type of filter can be a high-pass filter that allows high frequencies to pass but attenuates low frequencies. Another type of filter can be a band-pass filter that allows only frequencies in a specified frequency band to pass. Another type of filter can be a band-stop filter or notch filter that attenuates frequencies in a frequency band. Another type of filter can be a notch filter that rejects only one specified frequency and can be regarded as an extreme band-stop filter. Another type of filter can be a comb filter that has multiple regularly spaced (equidistant) narrow passbands.

[0234] Each tunable filter unit is capable of receiving a distinct control signal from the one or more control signals of the control unit to adjust a value of the frequency range value.

[0235] The one or more components may be arranged in one or more of the signal paths of the plurality of individual signal paths. The component may be adjusted by adjusting one or more of the following characteristic values in the frequency range value: a minimum cut-off frequency of the frequency of one of the plurality of tunable filter units and / or a maximum cut-off frequency of one of the plurality of tunable filter units and / or a bandwidth value of one of the plurality of tunable filter units; and / or an order number of one of the plurality of tunable filter units. Thus, the frequency range value may be adjusted to reduce interference (such as crosstalk) or reduce the channels available in a frequency band of a frequency range.

[0236] The cut-off frequency of the filter unit may be specifically selected such that multiple portions of a signal having a frequency higher or lower than a predetermined level are reduced. The cut-off frequency of the filter unit can be selected in such a way that a component (specifically with a desired attenuation) is attenuated. In other words, multiple frequency portions can be filtered out from the signal. Additionally, the cut-off frequency can be selected in such a way that multiple differential signal portions (specifically with a desired attenuation) having a frequency greater or less than a predetermined scale are attenuated.

[0237] Each tunable filter unit can receive a distinct control signal from the one or more control signals of the control unit to adjust an order number and / or a roll-off rate and / or a transition band and / or a ripple as a characteristic value of the tunable filter unit. Thus, the complexity of the filter unit can be adjusted by the control signal to adapt the filter unit to a current transmission condition. Additionally or alternatively, two or more tunable filter units can receive a distinct control signal to adjust an order number and / or a roll-off rate and / or a transition band and / or a ripple as a characteristic value of each of the two or more tunable filter units. The two or more tunable filter units can be integrated in a frequency module.

[0238] The characteristic value may be provided with an increase / decrease command. The control unit is also capable of switching multiple specified portions of a filter unit via a switching element to adjust a cut-off frequency.

[0239] The signal adjustment unit may include a power level setting unit. The power level setting unit may have one or more power level setting units as the component, preferably multiple power level setting units as the component. Each power setting unit can set a gain value and / or an attenuation value as a characteristic value.

[0240] The one or more power level setting units may include an attenuation unit, and each attenuation unit is capable of adjusting an attenuation value as a characteristic value.

[0241] Each attenuation unit is capable of receiving a distinct control signal from the one or more control signals of the control unit to respectively set and / or adjust the attenuation value as a characteristic value.

[0242] The set or adjusted attenuation value may be a value that can be selected from a plurality of different (distinct) attenuation values. These attenuation values may be pre-stored in the circuit device. Alternatively and / or additionally, the set or adjusted attenuation value may be obtained by respective increase / decrease commands.

[0243] The signal adjustment unit may include a signal path activation unit. The signal path activation unit may have one or more activation units as the components, preferably a plurality of amplifiers and / or switching units as the components. Each activation unit is capable of activating or deactivating a distinct signal path as a characteristic value.

[0244] The signal paths (i.e., the uplink signal path and the downlink signal path) of the circuit device may be activated or deactivated and thus can include an activated state or a deactivated state.

[0245] In an activated state of a signal path, a corresponding signal transmission via the signal path is feasible, preferably because a signal attenuation does not exceed a predetermined amount. In other words, in an activated state of a signal path, the terminal interface of the circuit device can be connected to the antenna interface of the circuit device via the activated signal path.

[0246] In a deactivated state of a signal path, no signal transmission via the corresponding deactivated signal path is possible, preferably because a signal attenuation exceeds a predetermined amount. In other words, the terminal interface of the circuit device cannot be connected to the antenna interface of the circuit device via the deactivated signal path. Thus, no signal, preferably a highly attenuated signal, can be transmitted from the terminal interface of the circuit device to the antenna interface of the circuit device via the signal path, and vice versa.

[0247] The value for deactivating the signal path may be an attenuation value that can be selected from a plurality of different attenuation values. In a state where an attenuation value of a signal path is adjusted, signal transmission of a corresponding signal via the signal path using a signal attenuated by a predetermined amount (attenuation value) is feasible. In other words, in a state where the value of a signal path is attenuated, the terminal interface of the circuit device may be connected to the antenna interface of the circuit device and the signal transmission via the signal path is attenuated in value.

[0248] The one or more power level setting units may include a gain amplifier unit as the component, and each gain amplifier unit can adjust a gain value as a characteristic value.

[0249] Each gain amplifier unit can receive a distinct control signal among the one or more control signals from the control unit.

[0250] Each amplifier unit can receive a distinct control signal among the one or more control signals from the control unit to respectively set and / or adjust a gain value as a characteristic value. The adjustment of the gain value may also include activation or deactivation of the gain unit. Additionally or alternatively, two or more amplifier units can receive one distinct control signal to set and / or adjust a gain value as a characteristic value of each of the two or more amplifier units. The two or more amplifier units may be integrated in one amplifier module.

[0251] The gain value may be a gain value that can be selected from a plurality of different (distinct) gain values. These gain values may be pre-stored in the circuit device. Alternatively and / or additionally, the set or adjusted gain value can be obtained by respective increase / decrease commands. Thus, a variable gain amplification unit for distinct signals among the plurality of signals is included in the signal adjustment unit.

[0252] Gain is generally defined as the average ratio of the signal amplitude or power at an output port to the amplitude or power at an input port. It may be desirable, for example, at a port of the signal adjustment unit, to have a specified power or amplitude value for a specified signal. Knowing the desired output amplitude (level) of the signal and having the detected actual amplitude value, the gain is easily calculated by a control unit and can be included in the control signal generated by the control unit.

[0253] Although the present invention has been shown and described with respect to one or more embodiments, alterations and modifications will occur to those skilled in the art upon reading and understanding this specification and the drawings. In addition, although a particular feature of the present invention may be disclosed with respect to only one of several embodiments, such feature may be combined, as desired, with one or more other features of the other embodiments and is advantageous for a given or particular application.

[0254] Although various embodiments of the present invention have been described above, it should be understood that they are presented by way of example only and not by way of limitation. Many changes may be made to the disclosed embodiments in light of the disclosure herein without departing from the scope of the present invention. Accordingly, the scope of the present invention should not be limited by any of the above-described embodiments. Rather, the scope of the present invention should be defined in accordance with the appended claims.

[0255] The disclosure provided herein illustrates features by way of its preferred and exemplary embodiments. Upon reading this disclosure, many other embodiments, modifications, and variations within the scope and spirit of the appended claims will occur to those of ordinary skill in the art.

Claims

1. A circuit device capable of adjusting a plurality of signals transmitted between a terminal and an antenna, the circuit device comprising: a detection unit configured to detect a signal parameter of the plurality of signals; a control unit configured to generate a control signal based on the detected signal parameter; and a signal adjustment section including a signal path separation unit configured to separate a common signal path for the plurality of signals into a plurality of individual signal paths, wherein two single signal paths among the plurality of individual signal paths are configured to carry two different signals among the plurality of received signals, wherein the signal adjustment section is configured to: receive the plurality of signals at a first port of the signal adjustment section; receive the control signal from the control unit; adjust a characteristic value of a component in one of the plurality of individual signal paths arranged in the signal adjustment section for independently adjusting a signal parameter for the two different signals based on the control signal to obtain a plurality of signals including the two different signals with one or more independently adjusted signal parameters, wherein the characteristic value includes one of the following: a previously known allocation, an attenuation value, or an activation state between different uplink signals and / or downlink paths; and provide the obtained plurality of signals including the two different signals with one or more independently adjusted signal parameters to a second port of the signal adjustment section.

2. The circuit device according to claim 1, wherein, The plurality of received signals are a plurality of uplink radio signals, wherein the first port of the signal adjustment section is an input port for receiving the plurality of uplink radio signals generated by the terminal, and wherein the second port of the signal adjustment section is an output port for providing the obtained plurality of uplink radio signals with one or more independently adjusted signal parameters to the antenna.

3. The circuit device according to claim 1, wherein, The plurality of received signals are a plurality of downlink radio signals, wherein the second port of the signal adjustment section is an input port for receiving the plurality of downlink radio signals via the antenna, and wherein the first port of the signal adjustment section is an output port for providing the obtained plurality of downlink radio signals with one or more independently adjusted signal parameters to the terminal.

4. The circuit device according to claim 1, wherein, The signal adjustment section is further configured to subsequently independently adjust the one or more signal parameters for each different signal.

5. The circuit device according to claim 1, wherein, The signal adjustment section is further configured to independently adjust the one or more signal parameters for each different signal in a time-parallel manner.

6. The circuit device according to claim 1, wherein, The detection unit is configured to detect the signal parameter selected from the group consisting of a frequency range, a discrete frequency value, an amplitude value, a power value, and a timing value.

7. The circuit device according to claim 1, wherein, The detection unit is configured to detect a frequency range as the signal parameter, wherein the frequency range is selected from the group consisting of: a single frequency channel in a mobile communication band; a plurality of frequency channels in a mobile communication band; a sum of a plurality of frequency channels in a mobile communication band; a single mobile communication band; a plurality of mobile communication bands; and a plurality of frequency channels in the plurality of mobile communication bands.

8. The circuit device according to claim 1, wherein, The signal adjustment unit includes a filter unit having a tunable filter unit as the component, wherein the tunable filter unit can individually and independently adjust a frequency range value as the eigenvalue for two or more active different signals having different coupling factors, different free space attenuations, and / or different channel characteristics among the received plurality of signals.

9. The circuit device according to claim 8, wherein, The tunable filter unit is configured to receive a distinct control signal from the control unit to adjust a value of the frequency range value.

10. The circuit device according to claim 9, wherein, The component in the signal path arranged in the plurality of individual signal paths is adjusted by adjusting one of the following eigenvalues: a minimum cut-off frequency of one of the tunable filter units; a maximum cut-off frequency of one of the tunable filter units; a bandwidth value of one of the tunable filter units; and an order number of one of the tunable filter units.

11. The circuit device according to claim 1, wherein, The signal adjustment unit includes a power level setting unit having a power level setting unit as the component, wherein the power level setting unit can set a gain value and / or an attenuation value as the eigenvalue.

12. The circuit device according to claim 11, wherein, The power level setting unit includes an attenuation unit as the component, and the attenuation unit is configured to individually and independently adjust the attenuation value as the eigenvalue for two or more active different signals having different coupling factors, different free space attenuations, and / or different channel characteristics among the received plurality of signals.

13. The circuit device according to claim 12, wherein, The attenuation unit is configured to receive a distinct control signal from the control unit to set the attenuation value.

14. The circuit device according to claim 11, wherein, The attenuation value can be selected from a plurality of different attenuation values and / or the gain value is a gain value that can be selected from a plurality of different gain values.

15. The circuit device according to claim 11, wherein, The power level setting unit includes a gain amplifier unit as the component, wherein the gain amplifier unit is configured to individually and independently adjust the gain value as the eigenvalue for two or more active different signals having different coupling factors, different free space attenuations, and / or different channel characteristics among the received plurality of signals.

16. The circuit device according to claim 15, wherein, The gain amplifier unit is configured to receive a distinct control signal from the control unit to set the gain value.

17. The circuit device according to claim 1, wherein, The circuit device is configured to be operable to provide individual adjustment of more than one signal path in the circuit device for data transmission in the same band or different bands, the adjustment being independent of whether the signal having the signal parameter to be adjusted is an uplink signal or a downlink signal, whereby the circuit device is operable to individually adjust or regulate a plurality of signal paths at a time including compensating for any attenuation according to the corresponding signal loss.

18. The circuit device according to claim 1, wherein, A signal coupler of the detection unit is configured to decouple a part of the received plurality of signals to a signal parameter detector of the detection unit to detect the signal parameters of the plurality of signals.

19. The circuit device according to claim 1, wherein, The signal path separation unit includes one of the following: a multiplexer unit, a demultiplexer unit, a filter bank, a switching unit, a frequency division unit, a power division unit, a switch having a multi-division function, and a circulator unit.

20. A method for adjusting signal parameters of a plurality of signals transmitted between a terminal and an antenna, wherein, The method includes the following steps: detecting a signal parameter of a plurality of signals by a detection unit of a circuit device; generating a control signal based on the detected signal parameter by a control unit of the circuit device; receiving the plurality of signals by a signal adjustment part of the circuit device; receiving the control signal from the control unit by the signal adjustment part of the circuit device; separating a common signal path for the plurality of signals into a plurality of individual signal paths by a signal path separation unit that is part of a signal adjustment unit of the circuit device, wherein two signal paths of the plurality of signal paths carry two different signals among the received plurality of signals; adjusting a characteristic value of a component in one of the plurality of individual signal paths by the signal adjustment part of the circuit device to independently adjust a signal parameter for the two different signals based on the control signal to obtain a plurality of signals including the two different signals with the independently adjusted signal parameters, wherein the characteristic value includes one of the following: a previously known allocation, an attenuation value, or an activation state between different uplink signals and / or downlink paths; and providing the obtained plurality of signals including the two different signals with the independently adjusted signal parameters by the signal adjustment part of the circuit device.

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