CN114679192B - Wide-narrow band multimode terminal - Google Patents
Wide-narrow band multimode terminal Download PDFInfo
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- CN114679192B CN114679192B CN202011557284.6A CN202011557284A CN114679192B CN 114679192 B CN114679192 B CN 114679192B CN 202011557284 A CN202011557284 A CN 202011557284A CN 114679192 B CN114679192 B CN 114679192B
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- narrowband
- broadband
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- audio signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application provides a broadband and narrowband multimode terminal, comprising: a narrowband modem, a wideband controller, a wideband memory, a wideband audio codec and a wideband radio frequency chip; the narrowband modem comprises a narrowband radio frequency chip and a narrowband controller; after the broadband controller is started, under the condition that an instruction for indicating to start the narrowband controller is received, the narrowband controller is started; the broadband controller sends the digital audio signal sent by the broadband audio codec to the narrowband controller under the condition that the instruction of the narrowband modem for sending the audio signal is received; the narrowband controller controls the narrowband radio frequency chip to transmit the digital audio signal; the broadband controller sends the audio signal to be played sent by the narrowband modem to the broadband audio codec; the broadband audio codec performs digital-to-analog conversion on the audio signal to be played to obtain an analog audio signal to be played. The wide-narrow band multimode terminal has high wide-narrow band fusion degree and simplified architecture.
Description
Technical Field
The application relates to the field of communication, in particular to a wide-narrow band multimode terminal.
Background
The broadband and narrowband multimode terminal comprises a broadband system and a narrowband system, wherein the broadband system is used for broadband multimedia communication such as 4G and 5G, and the narrowband system is used for narrowband intercom communication such as DMR, PDT, TETRA and P25.
Currently, the broadband multimode terminal includes the broadband multimode terminal shown in fig. 1 and 2, wherein the broadband multimode terminal shown in fig. 1 includes: broadband systems, narrowband systems, main controllers, and common peripherals. Wherein the broadband system comprises: broadband controllers and broadband peripherals. The narrowband system comprises: narrowband controllers and narrowband peripherals. Wherein the broadband peripheral comprises: broadband audio, broadband power, broadband storage, broadband Radio Frequency (RF), etc., the narrowband peripheral includes: narrowband audio, narrowband power, narrowband storage, narrowband RF, and the like. The broadband multimode terminal shown in fig. 2 includes: ARM chips, FPGA chips, first and second RF transceivers, first and second broadband wireless communication chips, switch chips, and Ethernet transceivers.
The mid-wideband system and the narrowband system in the wideband-narrowband multimode terminal shown in fig. 1 are relatively independent, i.e. the integration degree between the wideband system and the narrowband system is low, more components are needed, and the cost is high. The architecture of the wide-narrow band multimode terminal shown in fig. 2 is relatively complex, has more components and has high cost. In order to reduce the cost, it is necessary to provide a wide and narrow band multimode terminal with high integration and simple architecture.
Disclosure of Invention
The application provides a broadband and narrowband multimode terminal, and aims to provide a broadband and narrowband multimode terminal with high broadband and narrowband integration and simplified architecture.
In order to achieve the above object, the present application provides the following technical solutions:
the application provides a broadband and narrowband multimode terminal, which comprises: a narrowband modem, a wideband controller, a wideband memory, a wideband audio codec and a wideband radio frequency chip; the broadband memory, the broadband audio codec and the broadband radio frequency chip are respectively connected with the broadband controller; the narrowband modem comprises a narrowband radio frequency chip and a narrowband controller; the narrowband controller is connected with the narrowband radio frequency chip; the broadband controller is connected with the narrowband controller through a preset interface;
the broadband controller is used for guiding the narrowband controller to start under the condition that an instruction for guiding the narrowband controller to start is received after the broadband controller is started; loading a preset program which is called from the broadband memory into the narrowband controller for operation;
the broadband controller is further configured to send the digital audio signal sent by the broadband audio codec to the narrowband controller when receiving an instruction for the narrowband modem to transmit the audio signal; the digital audio signal is obtained by performing analog-to-digital conversion on an audio signal to be transmitted by the narrowband modem by the broadband audio codec;
the narrowband controller is used for controlling the narrowband radio frequency chip to transmit the digital audio signal;
the broadband controller is further configured to send the audio signal to be played sent by the narrowband modem to the broadband audio codec;
the broadband audio codec is used for performing digital-to-analog conversion on the audio signal to be played to obtain an analog audio signal to be played.
Optionally, the broadband multimode terminal further includes: a broadband power management circuit; the broadband power supply management circuit is connected with the broadband controller; the narrowband modem further comprises a power supply for powering the narrowband modem; the power supply is connected with the broadband controller;
the broadband power supply management circuit is used for controlling the switch of the broadband controller;
the broadband controller is further configured to control switching of the power supply when a switching control instruction for the narrowband modem is received.
Optionally, the preset program includes: the narrowband controller processes a narrowband physical layer and a narrowband protocol stack, and a program for controlling the narrowband radio frequency chip.
Optionally, a preset narrowband application program and a preset narrowband service program are stored in the broadband controller;
the broadband controller is further used for executing the narrowband application program and/or the narrowband service program indicated by the preset instruction under the condition that the preset instruction is received.
Optionally, the audio signal to be played is obtained by performing waveform processing on the radio frequency signal received by the narrowband radio frequency chip by the narrowband controller.
Optionally, the broadband multimode terminal further includes: an amplifier connected to the wideband audio codec, and a playback device connected to the amplifier;
the amplifier is used for amplifying the analog audio signal to be played to obtain an amplified analog audio signal;
the playing device is used for playing the amplified analog audio signal.
Optionally, the broadband multimode terminal further includes: a microphone;
the microphone is used for collecting the audio signals to be transmitted by the narrowband modem;
the microphone is further configured to send an audio signal to be transmitted by the narrowband modem to the wideband audio codec.
Optionally, the narrowband controller is configured to control the narrowband radio frequency chip to transmit the digital audio signal, and includes:
the narrowband controller is specifically used for carrying out preset waveform processing on the digital audio signal to obtain a digital audio signal after waveform processing; and sending the waveform processed digital audio signal and a transmitting instruction to the narrowband radio frequency chip; the transmitting instruction is used for indicating the narrowband radio frequency chip to transmit the digital audio signal after the waveform processing.
Optionally, the broadband controller is connected with the narrowband controller through a serial peripheral interface.
Optionally, the wideband controller is connected with the wideband audio codec through a digital audio interface.
The wide-narrow band multimode terminal comprises a narrow band modem, a wide band controller, a wide band memory, a wide band audio codec and a wide band radio frequency, wherein the narrow band modem comprises the narrow band radio frequency and the narrow band controller.
After the broadband controller is started, under the condition that an instruction for indicating to guide the narrowband controller to start is received, the narrowband controller is guided to start; and loading the preset program which is called from the broadband memory into the narrowband controller to operate, so that the narrowband system does not need to comprise the narrowband memory.
In the application, under the condition that the instruction of the narrowband modem to transmit the audio signal is received by the wideband controller, the wideband audio codec performs analog-to-digital conversion on the audio signal to be transmitted by the narrowband modem to obtain a digital audio signal, and sends the digital audio signal to the narrowband controller, and the narrowband controller controls the narrowband radio frequency chip to transmit the digital audio signal. Under the condition that the narrowband modem needs to play the audio signal, the wideband controller sends the audio signal to be played to the wideband audio codec, and the wideband audio codec performs digital-to-analog conversion on the audio signal to be played to obtain an analog audio signal to be played, so that conditions are provided for playing through a player in the wideband system.
It can be seen that in the present application, the narrowband system is realized by the wideband system for storage and audio processing, so on one hand, the fusion degree between the wideband and the narrowband is improved; on the other hand, the wide-narrow band multimode terminal does not need devices such as a main controller, a public peripheral, a narrow-band audio codec, a narrow-band memory and the like, so that the architecture is simplified compared with the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a wideband and narrowband multimode terminal disclosed in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a further broad and narrow band multimode terminal according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Fig. 1 is a schematic diagram of a wide-narrowband multimode terminal according to an embodiment of the present application, which may include: a narrowband modem, a wideband controller, a wideband memory, a wideband audio codec and a wideband radio frequency chip; the broadband memory, the broadband audio codec and the broadband radio frequency chip are respectively connected with the broadband controller; the narrowband modem comprises a narrowband radio frequency chip and a narrowband controller; the narrowband controller is connected with the narrowband radio frequency chip.
The broadband controller is connected to the narrowband controller through a preset interface, where the preset interface may be a serial peripheral interface, for example, SPI (Serial peripheral interface) interface, and of course, in reality, the preset interface may also be another interface, and the embodiment does not limit the specific content of the preset interface. The broadband controller and the broadband audio codec may be connected through a digital audio interface, such as a PDM interface and an I2S interface.
In this embodiment, the narrowband system does not include external memory, is booted by the narrowband controller (where the narrowband controller may be booted through a boot port, e.g., an SPI port), the narrowband controller and loads a program for the narrowband controller such that the narrowband shares the wideband memory. Specifically, after the broadband controller is started, under the condition that an instruction for indicating to guide the narrowband controller to start is received, the narrowband controller is guided to start, and a preset program called from the broadband memory is loaded into the narrowband controller to run. The instruction for instructing to start the narrowband controller may be a preset instruction stored in the wideband controller in advance, or may be an instruction for operating the wideband controller by a person.
Alternatively, the preset program may include: the narrowband controller processes the narrowband physical layer and the narrowband protocol stack and controls the program of the narrowband radio frequency chip. Optionally, in this embodiment, a preset narrowband application program and a preset narrowband service program are stored in the broadband controller; the broadband controller is also used for executing the narrowband application program and/or the narrowband service program indicated by the preset instruction under the condition that the preset instruction is received. Namely, in the embodiment, the broadband controller is used as a main controller, and the narrowband application, the narrowband service logic and the peripheral control are fused. The narrowband modem is only used as a narrowband modem module, and the narrowband controller is responsible for narrowband physical layer processing, narrowband protocol stacks and narrowband radio frequency control, so that a complex programmable logic device (Complex programmable logic device, CPLD) is not required to be used.
In this embodiment, the audio codec and the audio processing circuit are omitted from the narrowband, and the narrowband audio transmission and the narrowband audio reception are performed by the wideband audio codec and the audio processing circuit (the analog-to-digital conversion circuit and the digital-to-analog conversion circuit).
Wherein the process of narrowband transmitting audio may comprise: the broadband controller is further configured to, when receiving an instruction from the narrowband modem to transmit an audio signal, perform analog-to-digital conversion on the audio signal to be transmitted by the narrowband modem by using the wideband audio codec to obtain a digital audio signal, and send the digital audio signal to the broadband controller by using the wideband audio codec (where the wideband audio codec may send the audio signal to be played to the broadband controller through the PDM audio port), and send the digital audio signal to the narrowband controller by using the wideband audio codec (where the digital audio signal may be sent to the narrowband controller through the I2S audio port). The narrowband controller transmits the digital audio signal by controlling the narrowband radio frequency chip.
Optionally, the narrowband controller controls the narrowband radio frequency chip to transmit the digital audio signal, which specifically may include: the narrow-band controller performs preset waveform processing on the digital audio signal to obtain a digital audio signal after waveform processing; and transmitting the digital audio signal and the transmitting instruction after the waveform processing to a narrow-band radio frequency chip; the transmitting instruction is used for indicating the narrowband radio frequency chip to transmit the digital audio signal after waveform processing.
In this embodiment, the process of narrowband receiving audio may include: and the narrowband controller carries out waveform processing on the radio frequency signals received by the narrowband radio frequency chip to obtain audio signals to be played. The narrowband modem sends the audio signal to be played to the broadband controller, the broadband controller sends the audio signal to be played to the broadband audio codec (wherein the broadband controller can send the audio signal to be played to the broadband audio codec through the PDM audio port), and the broadband audio codec performs digital-to-analog conversion on the audio signal to be played to obtain the analog audio signal to be played.
Fig. 2 is a schematic diagram of a further embodiment of a wideband/narrowband multimode terminal according to the present application, where, on the basis of the wideband/narrowband multimode terminal shown in fig. 1, a narrowband modem is added with: a power supply for powering the narrowband modem, wherein the power supply is connected to the broadband controller and the broadband multimode terminal adds: a broadband power management circuit connected to the broadband controller, an amplifier connected to the broadband audio codec, a playback device connected to the amplifier, and a microphone.
The broadband power supply management circuit controls the switch of the broadband controller, and the broadband controller controls the switch of the power supply in the narrowband modem under the condition that the broadband controller receives a switch control instruction to the narrowband modem. I.e. the narrow-band modem of this embodiment has no switching power supply management circuit, and the narrow-band switching power supply management can be implemented by means of the broadband power supply management circuit and the broadband controller. The narrow-band controller in the narrow-band modem is started by controlling the broadband power supply management circuit, so that the wide-band controller is started first, and the narrow-band controller is controlled to start after the wide-band controller operates.
In this embodiment, for the process of transmitting an audio signal by the narrowband modem in the embodiment corresponding to fig. 1, the embodiment collects, by the microphone, the audio signal to be transmitted by the narrowband modem, and sends the audio signal to be transmitted to the wideband audio codec.
In this embodiment, for the process of receiving an audio signal by the narrowband modem in the embodiment corresponding to fig. 1, the embodiment amplifies an analog audio signal to be played obtained by digital-to-analog conversion of the wideband audio codec by using an amplifier, so as to obtain an amplified analog audio signal, and the amplified analog audio signal is played by using a playing device. The playing device may be a speaker, and of course, in practice, the playing device may be other playing devices besides a speaker, and the specific content of the playing device is not limited in this embodiment.
From the description of the above two embodiments, it can be seen that the wideband-narrowband multimode terminal of this embodiment is mainly broadband, and narrowband is auxiliary, and the broadbands and the narrowband are further fused. The narrowband Modem is only responsible for core functions such as narrowband RF transceiver and Modem (Modem) Modem, and other functions (such as storage, audio, power management, starting) and application software, and platform processing software are all operated and processed by means of the broadband controller and the broadband circuit.
The method is mainly characterized by comprising the following three aspects, firstly, a narrow-band is free of an external memory nonvolatile memory (FLASH), and is booted by a broadband controller, and a program is loaded for the narrow-band, so that the narrow-band shares the broadband memory. Second, the narrowband omits an audio codec or an audio analog-to-digital and digital-to-analog conversion circuit, and the narrowband audio work is completed by means of the wideband codec and the wideband controller audio channel. Thirdly, the narrow band omits a power on-off management circuit, and the narrow band on-off management control is completed by means of the wide band.
In summary, in the wideband and narrowband multimode terminal provided by the embodiment of the application, the degree of integration of software and hardware between the narrowband is higher, the method is simpler, the wideband chip is easy to update and iterate, and the narrowband is more intelligent.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other.
The features described in the various embodiments of the present disclosure may be interchanged or combined with each other in the above description of the disclosed embodiments to enable those skilled in the art to make or use the present application.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A wide-narrow band multimode terminal, comprising: a narrowband modem, a wideband controller, a wideband memory, a wideband audio codec and a wideband radio frequency chip; the broadband memory, the broadband audio codec and the broadband radio frequency chip are respectively connected with the broadband controller; the narrowband modem comprises a narrowband radio frequency chip and a narrowband controller; the narrowband controller is connected with the narrowband radio frequency chip; the broadband controller is connected with the narrowband controller through a preset interface;
the broadband controller is used for guiding the narrowband controller to start under the condition that an instruction for guiding the narrowband controller to start is received after the broadband controller is started; loading a preset program which is called from the broadband memory into the narrowband controller for operation;
the broadband controller is further configured to send the digital audio signal sent by the broadband audio codec to the narrowband controller when receiving an instruction for the narrowband modem to transmit the audio signal; the digital audio signal is obtained by performing analog-to-digital conversion on an audio signal to be transmitted by the narrowband modem by the broadband audio codec;
the narrowband controller is used for controlling the narrowband radio frequency chip to transmit the digital audio signal;
the broadband controller is further configured to send the audio signal to be played sent by the narrowband modem to the broadband audio codec;
the broadband audio codec is used for performing digital-to-analog conversion on the audio signal to be played to obtain an analog audio signal to be played.
2. The broadband narrowband multimode terminal of claim 1, wherein the broadband multimode terminal further comprises: a broadband power management circuit; the broadband power supply management circuit is connected with the broadband controller; the narrowband modem further comprises a power supply for powering the narrowband modem; the power supply is connected with the broadband controller;
the broadband power supply management circuit is used for controlling the switch of the broadband controller;
the broadband controller is further configured to control switching of the power supply when a switching control instruction for the narrowband modem is received.
3. The broadband multimode terminal of claim 1, wherein the preset program comprises: the narrowband controller processes a narrowband physical layer and a narrowband protocol stack, and a program for controlling the narrowband radio frequency chip.
4. The broadband multimode terminal according to claim 1, wherein the broadband controller stores a preset narrowband application program and a preset narrowband service program;
the broadband controller is further used for executing the narrowband application program and/or the narrowband service program indicated by the preset instruction under the condition that the preset instruction is received.
5. The broadband narrowband multimode terminal of claim 1, wherein the audio signal to be played is obtained by waveform processing of a radio frequency signal received by the narrowband radio frequency chip by the narrowband controller.
6. The broadband narrowband multimode terminal of claim 1, wherein the broadband multimode terminal further comprises: an amplifier connected to the wideband audio codec, and a playback device connected to the amplifier;
the amplifier is used for amplifying the analog audio signal to be played to obtain an amplified analog audio signal;
the playing device is used for playing the amplified analog audio signal.
7. The broadband narrowband multimode terminal of claim 1, wherein the broadband multimode terminal further comprises: a microphone;
the microphone is used for collecting the audio signals to be transmitted by the narrowband modem;
the microphone is further configured to send an audio signal to be transmitted by the narrowband modem to the wideband audio codec.
8. The broadband narrowband multimode terminal of claim 1, wherein the narrowband controller for controlling the narrowband radio frequency chip to transmit the digital audio signal comprises:
the narrowband controller is specifically used for carrying out preset waveform processing on the digital audio signal to obtain a digital audio signal after waveform processing; and sending the waveform processed digital audio signal and a transmitting instruction to the narrowband radio frequency chip; the transmitting instruction is used for indicating the narrowband radio frequency chip to transmit the digital audio signal after the waveform processing.
9. The broadband narrowband multimode terminal of claim 1, wherein the broadband controller and the narrowband controller are connected by a serial peripheral interface.
10. The wideband-narrowband multimode terminal of claim 1, wherein the wideband controller is coupled to the wideband audio codec via a digital audio interface.
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| CN202011557284.6A CN114679192B (en) | 2020-12-24 | 2020-12-24 | Wide-narrow band multimode terminal |
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| CN202011557284.6A CN114679192B (en) | 2020-12-24 | 2020-12-24 | Wide-narrow band multimode terminal |
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| CN114679192B true CN114679192B (en) | 2023-06-09 |
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