CN112910488B - Public and private network fusion system and data processing method thereof - Google Patents
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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
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
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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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0067—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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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
Abstract
The invention discloses a public and private network fusion system and a data processing method thereof. The public and private network fusion system comprises a public network subsystem and a private network subsystem which share the audio processing circuit; the public network subsystem comprises a public network DSP, a public network radio frequency transceiving circuit and a public network antenna which are sequentially connected; the private network subsystem comprises a private network DSP, a private network radio frequency transceiver circuit and a private network antenna which are connected in sequence; the audio processing circuit and the private network DSP are respectively connected with the public network DSP, the public network DSP is used as a master DSP, and the private network DSP is used as a slave DSP. Compared with the prior art, the invention reduces one audio processing circuit, simplifies the software and hardware structure of the whole system and the production and test links thereof, achieves the integration and advantage complementation of public and private networks, and has the advantages of low cost, low power consumption, easy miniaturization and the like.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a public and private network convergence system and a data processing method thereof.
Background
In the private network wireless communication industry, the narrow-band communication technology is adopted, so that the channel capacity is limited, and only language and short messages can be transmitted. With the social development, the development of the wireless communication technology is in a bottleneck and cannot meet the increasing application of large data transmission requirements in the private network industry. Such as: transmitting pictures, video, etc. The private network system combines the advantages of the narrow-band communication technology, and the convergence of the broadband communication technology becomes the development trend of private network wireless communication.
At present, in a public and private network convergence product, a private network system and a broadband system are generally independent. The two systems independently carry out the transmission, coding and decoding of voice and data. Referring to fig. 1, a conventional public-private network convergence product generally combines a private network system and a public network system into a whole, and performs audio signal transmission through a serial port control, an audio interface and a protocol. Therefore, public and private network communication interconnection and intercommunication are realized.
The main problems of the prior art are: two independent and complete wireless systems (a private network system and a public network system) exist, so that the circuit is bloated, the cost is increased, the power consumption of the whole machine is increased, and the miniaturization of products is not facilitated. The prior art solutions also have the following minor problems: more test links, complex hardware circuit, increased production cost and the like.
Disclosure of Invention
The invention aims to provide a public and private network convergence system and a data processing method thereof, which are used for solving the technical problems in the prior art.
In a first aspect of the present invention, a public-private network convergence system is provided, which includes a public network subsystem and a private network subsystem sharing an audio processing circuit; the public network subsystem comprises a public network DSP, a public network radio frequency transceiving circuit and a public network antenna which are sequentially connected; the private network subsystem comprises a private network DSP, a private network radio frequency transceiving circuit and a private network antenna which are connected in sequence; the audio processing circuit and the private network DSP are respectively connected with the public network DSP, the public network DSP is used as a master DSP, and the private network DSP is used as a slave DSP.
The public network DSP is used for carrying out operation processing on received signals and comprises the following steps: the signal transmitted by the private network DSP is directly forwarded to the audio processing circuit, the signal transmitted by the public network radio frequency transceiver circuit is subjected to operation processing and then is transmitted to the audio processing circuit, the private network signal transmitted by the audio processing circuit is directly forwarded to the private network DSP, and the public network signal transmitted by the audio processing circuit is subjected to operation processing and then is forwarded to the public network radio frequency transceiver circuit;
the audio processing circuit is to: after audio processing including audio decoding and audio amplification is carried out on the signals transmitted by the public network DSP, the signals are played through the connected acoustic devices; and carrying out audio processing including signal amplification and audio coding on the sound signals received by the acoustic device, and then transmitting the sound signals to the public network DSP.
Further, when the private network antenna receives a private network wireless signal, the private network radio frequency transceiver circuit processes the received private network wireless signal into a baseband signal, and the private network DSP performs operation processing on the baseband signal and then transmits the baseband signal to the public network DSP, and the baseband signal is directly forwarded to the audio processing circuit for processing through the public network DSP.
Furthermore, when the private network subsystem needs to transmit the sound signal, the audio processing circuit processes the input sound signal and transmits the processed sound signal to the public network DSP, the processed sound signal is directly transmitted to the private network DSP through the public network DSP, and the processed sound signal is transmitted by the private network antenna after being subjected to operation processing through the private network DSP and modulated through the private network radio frequency transceiver circuit.
Further, when the public network antenna receives a public network wireless signal, the public network radio frequency transceiver circuit processes the received public network wireless signal into a baseband signal, and the public network DSP performs operation processing on the baseband signal and then transmits the baseband signal to the audio processing circuit for processing.
Furthermore, when the public network subsystem needs to transmit the sound signal, the audio processing circuit processes the input sound signal and transmits the processed sound signal to the public network DSP, and the processed sound signal is transmitted by the private network antenna after being processed by the public network DSP and modulated by the public network radio frequency transceiver circuit.
Further, when the public network antenna and the private network antenna receive signals simultaneously, the signals received by the private network antenna are processed preferentially.
Furthermore, when the public network subsystem transmits signals and the private network antenna receives the signals, the signals received by the private network antenna are preferentially processed.
Furthermore, when the private network subsystem transmits signals and the public network antenna receives the signals, the signals required to be transmitted by the private network subsystem are preferentially processed.
In a second aspect of the present invention, there is provided a data processing method of the public-private network convergence system, the method including:
when a private network antenna receives a private network wireless signal, the private network radio frequency transceiving circuit processes the received private network wireless signal into a baseband signal, the private network DSP performs operation processing on the baseband signal and then transmits the baseband signal to the public network DSP, and the baseband signal is directly forwarded to the audio processing circuit for processing through the public network DSP;
when the private network subsystem needs to transmit sound signals, the audio processing circuit processes the input sound signals and transmits the processed sound signals to the public network DSP, the processed sound signals are directly transmitted to the private network DSP through the public network DSP, and the processed sound signals are transmitted out through the private network antenna after being subjected to operation processing through the private network DSP and modulated through the private network radio frequency transceiving circuit;
when the public network antenna receives a public network wireless signal, the public network radio frequency transceiver circuit processes the received public network wireless signal into a baseband signal, and the public network DSP performs operation processing on the baseband signal and then transmits the baseband signal to the audio processing circuit for processing;
when the public network subsystem needs to transmit sound signals, the audio processing circuit processes the input sound signals and transmits the processed sound signals to the public network DSP, and the sound signals are transmitted by the private network antenna after being processed by the public network DSP and modulated by the public network radio frequency transceiver circuit;
when the public network antenna and the private network antenna receive signals simultaneously, preferentially processing the signals received by the private network antenna;
when the public network subsystem transmits signals and the private network antenna receives the signals, preferentially processing the signals received by the private network antenna;
when the private network subsystem transmits signals, and the public network antenna receives the signals, the signals required to be transmitted by the private network subsystem are preferentially processed.
The technical effects obtained by the invention are as follows:
the invention provides a more deeply integrated public and private network integration system, wherein public network and private network subsystems share a set of audio processing circuit (namely, a circuit for realizing the functions of voice coding, decoding, audio amplification and the like) and a software algorithm, and compared with the prior art, the system reduces one path of audio processing circuit, and simplifies the software and hardware structure of the whole system and the production and test links thereof.
The invention has the advantages from various angles that:
from a cost perspective: most of the audio processing circuits can be shared by the two systems, so that the material cost is effectively reduced;
from the perspective of product miniaturization: the audio processing circuit can be reduced, and therefore the occupied space of components on the PCB is reduced.
From the perspective of overall power consumption: by reducing the audio processing circuitry, some power consumption can be reduced.
From a functional perspective: the real public and private network fusion is realized, and the advantages are complementary.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following briefly introduces the embodiment and the drawings used in the description of the prior art.
Fig. 1 is a schematic block diagram of a conventional public-private network convergence product;
fig. 2 is a schematic block diagram of a public-private network convergence system according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," and the like in the description and in the claims, and in the above-described drawings, are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The following will explain details by way of specific examples.
Referring to fig. 2, an embodiment of the invention provides a public-private network convergence system.
The public and private network fusion system comprises a public network subsystem and a private network subsystem which share an audio processing circuit; the public network subsystem comprises a public network DSP, a public network radio frequency transceiving circuit and a public network antenna which are sequentially connected; the private network subsystem comprises a private network DSP, a private network radio frequency transceiver circuit and a private network antenna which are connected in sequence; the audio processing circuit and the private network DSP are respectively connected with the public network DSP, the public network DSP is used as a master DSP, and the private network DSP is used as a slave DSP.
In the public and private network convergence system, two independent subsystems are used for realizing respective services, two DSPs (a private network DSP and a public network DSP) are required, and after the two systems are integrated, a master-slave relationship is required. The DSP master frequency of the public network is higher, the operation processing capacity is stronger, and the data delay is shorter. Therefore, the public network DSP is used as a master DSP, and the private network DSP is used as a slave DSP. The DSP is a short for Digital Signal Processing (Digital Signal Processing).
The public network DSP is used for carrying out operation processing on received signals and comprises the following steps: the signal transmitted by the private network DSP is directly forwarded to the audio processing circuit, the signal transmitted by the public network radio frequency transceiver circuit is subjected to operation processing and then is transmitted to the audio processing circuit, the private network signal transmitted by the audio processing circuit is directly forwarded to the private network DSP, and the public network signal transmitted by the audio processing circuit is subjected to operation processing and then is forwarded to the public network radio frequency transceiver circuit;
the audio processing circuit is to: after audio processing including audio decoding and audio amplification is carried out on the signals transmitted by the public network DSP, the signals are played through the connected acoustic devices; and carrying out audio processing including signal amplification and audio coding on the sound signals received by the acoustic device, and then transmitting the sound signals to the public network DSP. The acoustic device includes a speaker, a microphone, and the like.
Wherein, the private network DSP and the public network DSP can be connected through an I2S interface. The English full name of I2S is Inter-IC Sound, and the Chinese name is the built-in audio bus of integrated circuit.
In the application of the public and private network convergence system, various scenes are encountered, and under the scenes respectively listed below, how data voice is processed in the system is.
Scene one: and receiving by the private network.
The private network antenna receives a private network wireless signal, a private network radio frequency transceiving circuit processes a series of radio frequency signals such as filtering frequency selection, signal amplification, frequency mixing and the like to obtain a baseband signal, the baseband signal is transmitted to the public network DSP through an I2S interface after being processed by the private network DSP, the public network DSP does not process any voice data signal transmitted from the private network DSP after receiving the voice data signal, and the voice data signal is directly transmitted to an audio processing circuit to be played through a loudspeaker after audio decoding, audio amplification and the like.
Scene two: and (5) transmitting by a private network.
After the private network transmits and broadcasts voice by pressing a PTT (Push-to-talk) key, a microphone receives a sound signal, the sound signal is transmitted to a public network DSP after the processes of signal amplification and audio coding are carried out by an audio processing circuit, and the public network DSP forwards the sound signal to the private network DSP and then the sound signal is transmitted out by a private network antenna after modulation.
Scene three: and (6) receiving by the public network.
The public network antenna receives the public network wireless signal, the public network radio frequency transceiver circuit processes a series of radio frequency signals such as filtering frequency selection, signal amplification, frequency mixing and the like to obtain a baseband signal, and the baseband signal is played through a loudspeaker after the processes of audio decoding, audio amplification and the like.
Scene four: and (5) transmitting by the public network.
The public network transmits through dialing and connects the telephone. The microphone receives the sound signal, and after the sound signal is subjected to the processes of signal amplification and audio coding by the audio processing circuit, the sound signal is modulated and then transmitted by the public network antenna.
Scene five: and the public network and the private network receive simultaneously.
The public and private network convergence product needs to define the public and private network priority, namely: public network first or private network first. Generally, public and private network convergence products adopt private network priority. Under the premise, in combination with the scene, the private network antenna receives a private network wireless signal, and a public network receiving access can be automatically closed through software configuration. The special network radio frequency transceiver circuit is used for processing a series of radio frequency signals such as filtering frequency selection, signal amplification, frequency mixing and the like to obtain baseband signals, then the baseband signals are transmitted to the public network DSP through an I2S interface after being processed by the special network DSP, the public network DSP receives voice data transmitted by the special network DSP and directly transmits the voice data to the audio processing circuit without any processing to carry out audio decoding, and the audio signals are played through a loudspeaker after being amplified and the like.
Scene six: when the public network transmits, the private network signal is received.
Because the public and private network convergence product needs to define the priority of the public and private network, the public and private network convergence product usually adopts the priority of the private network. Under the premise, in combination with the scene, the software automatically interrupts the public network transmission. The private network antenna receives a private network wireless signal, a private network radio frequency transceiving circuit processes a series of radio frequency signals such as filtering frequency selection, signal amplification, frequency mixing and the like to obtain a baseband signal, the baseband signal is then transmitted to the public network DSP through an I2S interface after being processed by the private network DSP, and the public network DSP directly transmits voice data transmitted from the private network DSP to an audio processing circuit without any processing to perform audio decoding, audio amplification and the like, and then the voice data is played through a loudspeaker.
Scene seven: when the private network transmits, the public network signal is received.
Because the public-private network convergence product needs to define the priority of the public-private network, the public-private network convergence product usually adopts the priority of the private network. Under the premise, in combination with the scene, after the private network presses a PTT key to transmit and broadcast voice, the software automatically interrupts the public network receiving. Meanwhile, the microphone receives a sound signal, the sound signal is amplified through the audio processing circuit, the sound signal is transmitted to the public network DSP after the audio coding process, the public network DSP forwards the sound signal to the private network DSP, and the sound signal is modulated and then transmitted out through the private network antenna.
The above scenarios completely cover scenarios that all public and private network systems will encounter in application, and corresponding processing schemes have been respectively given.
The technical effects obtained by the invention are as follows: the invention provides a more deeply integrated public and private network integration system, wherein public network and private network subsystems share a set of audio processing circuit (namely, a circuit for realizing the functions of voice coding, decoding, audio amplification and the like) and a software algorithm, and compared with the prior art, the system reduces one path of audio processing circuit, and simplifies the software and hardware structure of the whole system and the production and test links thereof.
The invention has the advantages from various angles that:
from a cost perspective: most of the audio processing circuits can be shared by the two systems, so that the material cost is effectively reduced;
from the perspective of product miniaturization: the audio processing circuit can be reduced, and therefore the occupied space of components on the PCB is reduced.
From the perspective of overall power consumption: by reducing the audio processing circuitry, some power consumption can be reduced.
From a functional perspective: the real public and private network fusion is realized, and the advantages are complementary.
The technical solution of the present invention is explained in detail by the specific embodiments above. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; the technical solutions described in the above embodiments can be modified or part of the technical features can be equivalently replaced by those skilled in the art; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A public and private network fusion system is characterized by comprising a public network subsystem and a private network subsystem which share an audio processing circuit; the public network subsystem comprises a public network DSP, a public network radio frequency transceiving circuit and a public network antenna which are sequentially connected; the private network subsystem comprises a private network DSP, a private network radio frequency transceiver circuit and a private network antenna which are connected in sequence; the audio processing circuit and the private network DSP are respectively connected with the public network DSP, the public network DSP is used as a master DSP, and the private network DSP is used as a slave DSP;
the public network DSP is used for carrying out operation processing on the received signals and comprises the following steps: the signal transmitted by the private network DSP is directly forwarded to the audio processing circuit, the signal transmitted by the public network radio frequency transceiver circuit is subjected to operation processing and then is transmitted to the audio processing circuit, the private network signal transmitted by the audio processing circuit is directly forwarded to the private network DSP, and the public network signal transmitted by the audio processing circuit is subjected to operation processing and then is forwarded to the public network radio frequency transceiver circuit;
the audio processing circuit is to: after audio processing including audio decoding and audio amplification is carried out on the signals transmitted by the public network DSP, the signals are played through the connected acoustic devices; and carrying out audio processing including signal amplification and audio coding on the sound signals received by the acoustic device, and then transmitting the sound signals to the public network DSP.
2. The system of claim 1, wherein when the private network antenna receives the private network wireless signal, the private network rf transceiver circuit processes the received private network wireless signal into a baseband signal, and the private network DSP performs an operation on the baseband signal and then transmits the baseband signal to the public network DSP, and the baseband signal is directly forwarded to the audio processing circuit via the public network DSP for processing.
3. The system of claim 1, wherein when the private network subsystem needs to transmit the audio signal, the audio processing circuit processes the input audio signal and transmits the processed audio signal to the public network DSP, the processed audio signal is directly forwarded to the private network DSP via the public network DSP, and the processed audio signal is modulated by the private network rf transceiver circuit and transmitted by the private network antenna.
4. The system of claim 1, wherein when the public network antenna receives a public network wireless signal, the public network rf transceiver circuit processes the received public network wireless signal into a baseband signal, and the public network DSP performs an operation on the baseband signal and then transmits the baseband signal to the audio processing circuit for processing.
5. The system of claim 1, wherein when the public network subsystem needs to transmit the sound signal, the audio processing circuit processes the input sound signal and transmits the processed sound signal to the public network DSP, and the processed sound signal is modulated by the public network DSP and then transmitted by the private network antenna.
6. The system of claim 1, wherein signals received by the private network antenna are preferentially processed when signals are received by both the public network antenna and the private network antenna.
7. The system of claim 1, wherein when the private network antenna receives a signal while the public network subsystem transmits the signal, the private network antenna preferentially processes the signal received by the private network antenna.
8. The system of claim 1, wherein when the private network subsystem transmits a signal and the public network antenna receives a signal, the signal to be transmitted by the private network subsystem is preferentially processed.
9. A data processing method of the public and private network convergence system according to claim 1, the method comprising:
when a private network antenna receives a private network wireless signal, the private network radio frequency transceiving circuit processes the received private network wireless signal into a baseband signal, the private network DSP performs operation processing on the baseband signal and then transmits the baseband signal to the public network DSP, and the baseband signal is directly forwarded to the audio processing circuit for processing through the public network DSP;
when the private network subsystem needs to transmit sound signals, the audio processing circuit processes the input sound signals and transmits the processed sound signals to the public network DSP, the processed sound signals are directly transmitted to the private network DSP through the public network DSP, and the processed sound signals are transmitted out through the private network antenna after being subjected to operation processing through the private network DSP and modulated through the private network radio frequency transceiving circuit;
when the public network antenna receives a public network wireless signal, the public network radio frequency transceiver circuit processes the received public network wireless signal into a baseband signal, and the public network DSP performs operation processing on the baseband signal and then transmits the baseband signal to the audio processing circuit for processing;
when the public network subsystem needs to transmit sound signals, the audio processing circuit processes the input sound signals and transmits the processed sound signals to the public network DSP, and the processed sound signals are transmitted by the private network antenna after being subjected to operation processing by the public network DSP and modulated by the public network radio frequency transceiver circuit;
when the public network antenna and the private network antenna receive signals simultaneously, preferentially processing the signals received by the private network antenna;
when the public network subsystem transmits signals and the private network antenna receives the signals, preferentially processing the signals received by the private network antenna;
when the private network subsystem transmits signals, and the public network antenna receives the signals, the signals required to be transmitted by the private network subsystem are preferentially processed.
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| CN117082460B (en) * | 2023-10-16 | 2024-01-26 | 深圳市联科通信有限公司 | Public-private network signal sharing method, double-network interphone and mixed networking interphone system |
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| CN204795013U (en) * | 2015-05-15 | 2015-11-18 | 力声（福建）通信股份有限公司 | Mixed intercom of ECHAT public network and private network |
| WO2018107362A1 (en) * | 2016-12-13 | 2018-06-21 | 海能达通信股份有限公司 | Wideband and narrowband communication device and method |
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