CN110233809B - Baseband signal processing method, device, equipment and storage medium - Google Patents

Baseband signal processing method, device, equipment and storage medium Download PDF

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CN110233809B
CN110233809B CN201910569486.3A CN201910569486A CN110233809B CN 110233809 B CN110233809 B CN 110233809B CN 201910569486 A CN201910569486 A CN 201910569486A CN 110233809 B CN110233809 B CN 110233809B
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communication mode
baseband signal
processing unit
unit
demodulation
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CN110233809A (en
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辛凯
刘虎
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Shanghai Jinzhuo Technology Co ltd
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6508—Flexibility, adaptability, parametrability and configurability of the implementation
    • H03M13/6513—Support of multiple code types, e.g. unified decoder for LDPC and turbo codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes

Abstract

The embodiment of the invention discloses a baseband signal processing method, a baseband signal processing device, baseband signal processing equipment and a baseband signal processing storage medium, wherein the method comprises the following steps: according to the concurrency type of a wireless communication mode supported by a terminal, gating a baseband signal processing unit matched with the concurrency type from a plurality of standby baseband signal processing units; determining a signal flow direction and a target wireless communication mode corresponding to the target baseband signal; and selecting a matched processing unit to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode. According to the technical scheme provided by the embodiment of the invention, the corresponding processing unit is determined according to the signal flow direction of the target baseband signal and the wireless communication mode, and then the target baseband signal is modulated and coded or demodulated and decoded, so that different types of wireless communication signals can be simultaneously transmitted, the data transmission delay is reduced, and the communication efficiency is improved.

Description

Baseband signal processing method, device, equipment and storage medium
Technical Field
Embodiments of the present invention relate to the field of communications technologies, and in particular, to a baseband signal processing method, apparatus, device, and storage medium.
Background
Wireless communication has become one of the important communication means in the communication field as a communication method for exchanging information by freely propagating an electronic wave signal in space.
The wireless communication method is generally classified into microwave communication (typically, 4G communication, 5G communication, or the like) and satellite communication. Microwave is a radio wave, has a wide frequency band, has a large communication capacity, and has a transmission distance of tens of kilometers, so a microwave relay station is generally established every tens of kilometers; and satellite communication is the establishment of microwave communication links between two or more earth stations or between moving objects on the ground by using communication satellites as relay stations.
In the process of implementing the invention, the inventor finds that the prior art has the following defects: when the existing equipment carries out wireless communication, microwave signals and communication satellite signals can be processed only in a single mode, namely, the microwave baseband signal processing device is used for receiving or sending the microwave signals, the communication satellite baseband signal processing device is used for receiving or sending the communication satellite signals, and information synchronization and concurrence of data chains cannot be achieved.
Disclosure of Invention
The embodiment of the invention provides a baseband signal processing method, a baseband signal processing device, baseband signal processing equipment and a baseband signal processing storage medium, which are used for realizing concurrence of a satellite communication mode and a land mobile communication mode and improving communication efficiency.
In a first aspect, an embodiment of the present invention provides a baseband signal processing method, including:
according to a concurrency type of a wireless communication mode supported by a terminal, gating a baseband signal processing unit matched with the concurrency type from a plurality of preset standby baseband signal processing units, wherein the concurrency type comprises: concurrence of satellite communication mode and land mobile communication mode;
acquiring a target baseband signal to be processed, and determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal;
and selecting a matched processing unit from the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode.
In a second aspect, an embodiment of the present invention provides a baseband signal processing apparatus, including:
a baseband signal processing unit obtaining module, configured to gate, according to a concurrency type of a wireless communication mode supported by a terminal, a baseband signal processing unit matched with the concurrency type from a plurality of baseband signal processing units preset with multiple candidates, where the concurrency type includes: concurrence of satellite communication mode and land mobile communication mode;
the target baseband signal acquisition module is used for acquiring a target baseband signal to be processed and determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal;
and the baseband signal processing module is used for selecting a matched processing unit from the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode.
In a third aspect, an embodiment of the present invention further provides an apparatus, where the apparatus includes:
one or more processors;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the baseband signal processing method according to any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the baseband signal processing method according to any embodiment of the present invention.
According to the technical scheme provided by the embodiment of the invention, after the concurrency type of the terminal is determined, the corresponding processing unit is determined according to the signal flow direction of the target baseband signal and the wireless communication mode, and then the target baseband signal is modulated and coded or demodulated and decoded, so that different types of wireless communication signals can be simultaneously transmitted, the delay of data transmission is greatly reduced, the communication efficiency is improved, and particularly for data needing to keep synchronism, the terminal can be simultaneously transmitted or received by data interaction in different transmission directions.
Drawings
Fig. 1 is a flowchart of a baseband signal processing method according to an embodiment of the present invention;
fig. 2A is a flowchart of a baseband signal processing method according to a second embodiment of the present invention;
fig. 2B is a flowchart of a baseband signal processing method according to a second embodiment of the present invention;
fig. 2C is a flowchart of a baseband signal processing method according to a second embodiment of the present invention;
fig. 3A is a flowchart of a baseband signal processing method according to a third embodiment of the present invention;
fig. 3B is a flowchart of a baseband signal processing method according to a first embodiment of the present invention;
fig. 3C is a flowchart of a baseband signal processing method according to a first embodiment of the present invention;
fig. 3D is a flowchart of a baseband signal processing method according to a second specific application scenario of the present invention;
fig. 3E is a flowchart of a baseband signal processing method according to a second specific application scenario of the present invention;
fig. 4 is a block diagram of a baseband signal processing apparatus according to a fourth embodiment of the present invention;
fig. 5 is a block diagram of a device according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a baseband signal processing method according to an embodiment of the present invention, where the embodiment is applicable to a case where a satellite communication mode and a land mobile communication mode are concurrent, and the method may be executed by a baseband signal processing apparatus according to an embodiment of the present invention, where the apparatus may be implemented by software and/or hardware, and may be generally integrated in a terminal device supporting the satellite communication mode and the land mobile communication mode, and may typically be integrated in a mobile phone, and the method specifically includes the following steps:
s110, according to a concurrency type of a wireless communication mode supported by a terminal, gating a baseband signal processing unit matched with the concurrency type from a plurality of preset standby baseband signal processing units, wherein the concurrency type comprises: the satellite communication mode and the land mobile communication mode are concurrent.
Concurrence means that several programs are in a period from the time when the programs are started to the time when the programs are finished, and the programs are all run on the same processor, but only one program is run on the processor at any time point. In the wireless communication mode, different wireless signals are transmitted simultaneously; for example, the terminal device may perform data interaction with a satellite terminal at sea through a satellite, and may perform data interaction with other terminals on the ground through a terrestrial mobile communication system. Particularly, the reason for the simultaneous operation is that the data interaction speed is very fast, and the execution modes of the data are still in the order in the sense of the user.
Optionally, in the embodiment of the present invention, the satellite communication mode includes an all-satellite-one-signal communication mode; the land mobile communication mode comprises a 4G land mobile communication mode and a 5G land mobile communication mode; the concurrency type of the wireless communication mode supported by the terminal comprises concurrency of the satellite communication mode of the skynt one and the 4G land mobile communication mode and concurrency of the satellite communication mode of the skynt one and the 5G land mobile communication mode. If the terminal supports the concurrence of the satellite communication mode of the skynt one and the 4G land mobile communication mode, gating a baseband signal processing unit matched with the satellite communication mode of the skynt one and the 4G land mobile communication mode from a plurality of preset alternative baseband signal processing units; and if the terminal supports the concurrence of the satellite communication mode of the skynt one and the 5G land mobile communication mode, gating the baseband signal processing unit matched with the satellite communication mode of the skynt one and the 5G land mobile communication mode from a plurality of preset alternative baseband signal processing units.
Different wireless communication modes conform to different protocol types and frequency bands. For example, the skynone signal communication mode conforms to the GMR-13G protocol, and the frequency band is the S band; the frequency bands of the 4G land mobile communication mode comprise 1880-1900MHz, 2320-2370MHz and 2575-2635 MHz; the frequency bands of the 5G land mobile communication mode include 3300-.
Different wireless communication modes are different in modulation and demodulation mode and coding and decoding. For example, the Modulation and demodulation scheme adopted by the 4G terrestrial mobile communication scheme is OFDM (Orthogonal Frequency Division Multiplexing ) plus symbol Modulation and demodulation, and the symbol Modulation and demodulation scheme may be QPSK (Quadrature Phase Shift Keying), 16QAM (16Quadrature Amplitude Modulation, including Quadrature Amplitude Modulation of 16 symbols), or 64QAM (including Quadrature Amplitude Modulation of 64 symbols); the modulation and demodulation mode adopted by the 5G land mobile communication mode is OFDM plus symbol modulation and demodulation, and the symbol modulation and demodulation can be QPSK, 16QAM, 64QAM or 256QAM (including quadrature amplitude modulation of 256 symbols); the modulation and demodulation mode adopted by the Tiantong one-signal communication mode is spread spectrum and de-spread spectrum technology plus symbol modulation and demodulation, and the symbol modulation and demodulation can be GMSK (Gaussian Filtered Minimum Shift Keying), QPSK (Quadrature Phase Shift Keying), or 8PSK (8Phase Shift Keying ); the channel coding and decoding adopted by the 4G land mobile communication mode are Turbo codes and convolutional codes, the channel coding and decoding adopted by the 5G land mobile communication mode are LDPC (Low-density Parity-check) codes and Polar codes, and the communication mode of the Tiantong number I is LDPC codes and Turbo codes. The baseband signal processing unit is used for modulating, demodulating, encoding or decoding the acquired baseband signal.
In particular, the selection of the symbol modulation and demodulation schemes for the 4G land mobile communication scheme, the 5G land mobile communication scheme, and the skynman signal communication scheme is related to the type of data to be transmitted, the amount of data, and the channel quality.
Particularly, the Turbo code adopted by the 4G land mobile communication mode is different from the Turbo code adopted by the skynman one-number communication mode in terms of production polynomial, and the encoding and decoding matrixes are different, so that the Turbo codes are different; the LDPC (Low-density Parity-check) code adopted in the 5G terrestrial mobile communication mode is different from the LDPC code in the skynman one-number communication mode in terms of a production polynomial of the LDPC code, and the coding and decoding matrices of the LDPC code are different, so that the LDPC code is also different.
S120, obtaining a target baseband signal to be processed, and determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal.
The signal flow direction comprises a receiving direction and a sending direction; after a target baseband signal to be processed is acquired, whether the target baseband signal is a receiving direction signal or a sending direction signal is determined. Since the terminal supports concurrence of the satellite communication mode and the land mobile communication mode, after the target baseband signal to be processed is obtained, whether the target baseband signal is the satellite communication mode or the land mobile communication mode needs to be determined; specifically, it is determined whether the target baseband signal is in a wireless communication scheme selected from a skynet signal communication scheme, a 4G land mobile communication scheme, and a 5G land mobile communication scheme.
And S130, selecting a matched processing unit from the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode.
If the signal flow direction is a signal receiving direction and the target wireless communication mode is a sky-communication one-signal communication mode, selecting a processing unit which is matched with the sky-communication one-signal communication mode from the gated baseband signal processing units and used for demodulation or decoding to perform baseband signal processing on the target baseband signal; if the signal flow direction is a signal receiving direction and the target wireless communication mode is a 4G land mobile communication mode, selecting a processing unit which is matched with the 4G land mobile communication mode from the gated baseband signal processing unit and used for demodulation or decoding to perform baseband signal processing on the target baseband signal; if the signal flow direction is a signal receiving direction and the target wireless communication mode is a 5G land mobile communication mode, selecting a processing unit which is matched with the 5G land mobile communication mode from the gated baseband signal processing unit and used for demodulation or decoding to perform baseband signal processing on the target baseband signal; if the signal flow direction is a signal sending direction and the target wireless communication mode is a sky-communication one-signal communication mode, selecting a processing unit which is matched with the sky-communication one-signal communication mode from the gated baseband signal processing units and used for modulation or coding to perform baseband signal processing on the target baseband signal; if the signal flow direction is a signal sending direction and the target wireless communication mode is a 4G land mobile communication mode, selecting a processing unit which is matched with the 4G land mobile communication mode from the gated baseband signal processing unit and used for modulation or coding to perform baseband signal processing on the target baseband signal; if the signal flow direction is a signal sending direction and the target wireless communication mode is a 5G land mobile communication mode, the gated baseband signal processing unit selects a processing unit which is matched with the 5G land mobile communication mode and used for modulation or coding to perform baseband signal processing on the target baseband signal.
According to the technical scheme provided by the embodiment of the invention, after the concurrency type of the terminal is determined, the corresponding baseband signal processing unit is determined according to the signal flow direction of the target baseband signal and the wireless communication mode, and then the target baseband signal is modulated and coded or demodulated and decoded, so that different types of wireless communication signals can be simultaneously transmitted, the delay of data transmission is greatly reduced, and particularly for data needing to keep synchronism, data interaction in different transmission directions can be simultaneously carried out by the terminal.
Example two
Fig. 2A is a flowchart of a baseband signal processing method according to a second embodiment of the present invention, which is embodied based on the foregoing embodiments. Correspondingly, the method of the embodiment specifically includes the following steps:
s210, according to a concurrency type of a wireless communication mode supported by a terminal, gating a baseband signal processing unit matched with the concurrency type from a plurality of preset standby baseband signal processing units, wherein the concurrency type comprises: and the concurrence of the satellite communication mode of the heaven-through number one and the 4G land mobile communication mode, or the concurrence of the satellite communication mode of the heaven-through number one and the 5G land mobile communication mode.
Specifically, as shown in fig. 2B, according to the concurrence of the skynt one satellite communication mode and the 4G land mobile communication mode supported by the terminal, the baseband signal processing unit that matches the concurrence of the skynt one satellite communication mode and the 4G land mobile communication mode is gated from the baseband signal processing unit that is preset with a plurality of candidates; the gated baseband signal processing unit comprises a gated despreading and demodulating unit which is used as a primary demodulating and processing unit matched with the skynt one satellite communication mode, and a gated first OFDM demodulating and processing unit which is used as a primary demodulating and processing unit matched with the 4G land mobile communication mode; gating a GMSK demodulation unit, a first QPSK demodulation unit or an 8PSK demodulation unit as a secondary demodulation processing unit matched with the skynt one-number satellite communication mode, and gating a second QPSK demodulation unit, a first 16QAM demodulation unit or a first 64QAM demodulation unit as a secondary demodulation processing unit matched with the 4G land mobile communication mode; and gating a first LDPC decoding unit or a first Turbo decoding unit as a decoding processing unit matched with the skynt one satellite communication mode, and gating a second Turbo decoding or convolutional decoding as a decoding processing unit matched with the 4G land mobile communication mode.
As shown in fig. 2C, according to the concurrence of the satellite communication mode of skynt one and the 5G land mobile communication mode supported by the terminal, the baseband signal processing unit matched with the concurrence of the satellite communication mode of skynt one and the 5G land mobile communication mode is gated from a plurality of preset standby baseband signal processing units; the gated baseband signal processing unit comprises a gated despreading and demodulating unit which is used as a primary demodulating and processing unit matched with the skynt one satellite communication mode, and a gated second OFDM demodulating and processing unit which is used as a primary demodulating and processing unit matched with the 5G land mobile communication mode; gating a GMSK demodulation unit, a first QPSK demodulation unit or an 8PSK demodulation unit as a secondary demodulation processing unit matched with the skynt one-number satellite communication mode, and gating a third QPSK demodulation unit, a second 16QAM demodulation unit, a second 64QAM demodulation unit or a 256QAM demodulation unit as a secondary demodulation processing unit matched with the 5G land mobile communication mode; and gating a first LDPC decoding unit or a first Turbo decoding unit as a decoding processing unit matched with the skynt one satellite communication mode, and gating a second LDPC decoding unit or a Polar decoding unit as a decoding processing unit matched with the 5G land mobile communication mode.
The first-stage demodulation processing unit is used for carrying out despreading processing on the Tiantong one-signal communication signal and carrying out OFDM demodulation processing on a 4G land mobile communication signal or a 5G land mobile communication signal; wherein despreading removes the spreading code and reconstructs the information over the original bandwidth of the signal; the second-level demodulation processing unit is used for carrying out symbol demodulation processing on the Tiantong one-signal communication signal, the 4G land mobile communication signal or the 5G land mobile communication signal; the decoding processing unit is used for restoring the demodulated communication signal into original information or data.
S220, obtaining a target baseband signal to be processed, and determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal.
And S230, when the signal flow direction is determined to be the signal receiving direction, selecting a primary demodulation processing unit matched with the target wireless communication mode from the gated baseband signal processing units, and demodulating the target baseband signal by using the primary demodulation processing unit to obtain a first demodulation signal.
Particularly, since there may be interference signals or jammers during signal transmission, and the despreading process spreads the interference signals or jammers, when the wireless communication mode of the target baseband signal is the skynone signal communication mode, the target baseband signal may not be despread, that is, the skynone signal communication signal is not demodulated by using the primary demodulation processing unit, and the signal that has not been processed by the primary demodulation processing unit is used as the first demodulated signal.
S240, selecting a secondary demodulation processing unit matched with the target wireless communication mode from the gated baseband signal processing units, and performing demodulation processing on the first demodulated signal by using the secondary demodulation processing unit to obtain a second demodulated signal.
And S250, selecting a decoding processing unit matched with the target wireless communication mode from the gated baseband signal processing units, and decoding the second demodulation signal by using the decoding processing unit to obtain a decoding signal and sending the decoding signal to a next processing unit.
The decoded signal is the actual information or data represented by the target baseband signal, and because the types of the information or data included in the target baseband signal are different, the next processing unit corresponding to the decoded signal is also different. For example, the type of information or data included in the target baseband signal may include voice, image, text, file, and/or web page; the next processing unit may include one or more of a voice playing unit, an image processing unit, a short message processing unit, a web browsing unit, and a file presentation unit. Optionally, in the embodiment of the present invention, the type of information or data included in the target baseband signal is not specifically limited, and the type of the next processing unit is also not specifically limited.
According to the technical scheme provided by the embodiment of the invention, different baseband signal processing units are respectively matched with the received Tiantong one-signal communication signal, 4G land mobile communication signal and 5G land mobile communication signal according to different wireless communication modes of the target baseband signal, and the actual data or information of the target baseband signal is obtained after demodulation and decoding processing, so that the data synchronous receiving of the Tiantong one-signal communication signal and the 4G land mobile communication signal and the data synchronous receiving of the Tiantong one-signal communication signal and the 5G land mobile communication signal are realized, the delay of data transmission is reduced, and the communication efficiency is improved.
EXAMPLE III
Fig. 3A is a flowchart of a baseband signal processing method according to a third embodiment of the present invention, which is embodied based on the foregoing embodiments, and in this embodiment, the signal flow direction is a signal transmission direction. Correspondingly, the method of the embodiment specifically includes the following steps:
s310, according to a concurrency type of a wireless communication mode supported by a terminal, gating a baseband signal processing unit matched with the concurrency type from a plurality of preset standby baseband signal processing units, wherein the concurrency type comprises: the method comprises the step of concurrence of the satellite communication mode of the heaven-earth connection and the 4G land mobile communication mode, or the step of concurrence of the satellite communication mode of the heaven-earth connection and the 5G land mobile communication mode.
Specifically, according to concurrence of an skynt one satellite communication mode and a 4G land mobile communication mode supported by a terminal, gating a baseband signal processing unit which is matched with the concurrence of the skynt one satellite communication mode and the 4G land mobile communication mode from a plurality of standby baseband signal processing units; the gated baseband signal processing unit comprises a gated first LDPC coding unit or a gated first Turbo coding unit which is used as a coding processing unit matched with the skyntong one-number satellite communication mode, and a gated second Turbo coding unit or a gated convolutional coding unit which is used as a coding processing unit matched with the 4G land mobile communication mode; gating a GMSK modulation unit, a first QPSK modulation unit or an 8PSK modulation unit as a primary modulation processing unit matched with the skynt one-number satellite communication mode, and gating a second QPSK modulation unit, a first 16QAM modulation unit or a first 64QAM modulation unit as a primary modulation processing unit matched with the 4G land mobile communication mode; and the gating spread spectrum modulation unit is used as a secondary modulation processing unit matched with the satellite communication mode of the skynone number one, and the gating first OFDM modulation processing unit is used as a secondary modulation processing unit matched with the 4G land mobile communication mode.
According to the concurrence of the satellite communication mode of the skynt one and the 5G land mobile communication mode supported by the terminal, gating a baseband signal processing unit which is matched with the concurrence of the satellite communication mode of the skynt one and the 5G land mobile communication mode from a plurality of standby baseband signal processing units; the gated baseband signal processing unit comprises a gated first LDPC coding unit or a gated first Turbo coding unit which is used as a coding processing unit matched with the skynone first satellite communication mode, and a gated second LDPC coding unit or a gated Polar coding unit which is used as a coding processing unit matched with the 5G land mobile communication mode; gating a GMSK modulation unit, a first QPSK modulation unit or an 8PSK modulation unit as a primary modulation processing unit matched with the Tiantong first satellite communication mode, and gating a third QPSK modulation unit, a second 16QAM modulation unit, a second 64QAM modulation unit or a 256QAM modulation unit as a primary modulation processing unit matched with the 5G land mobile communication mode; and the gating spread spectrum modulation unit is used as a secondary modulation processing unit matched with the satellite communication mode of the skynone number one, and the gating second OFDM modulation processing unit is used as a secondary modulation processing unit matched with the 5G land mobile communication mode.
The first-level modulation processing unit is used for carrying out spread spectrum processing on the Tiantong one-signal communication signal and carrying out OFDM modulation processing on the 4G land mobile communication signal or the 5G land mobile communication signal; the spread spectrum is to spread the frequency spectrum of the transmission signal, so that the bandwidth of the transmission signal is wider than the original bandwidth of the transmission signal; the secondary modulation processing unit is used for carrying out symbol modulation processing on the Tiantong one-signal communication signal, the 4G land mobile communication signal or the 5G land mobile communication signal; the encoding processing unit is used for compiling original information or data into a transmission signal.
S320, obtaining a target baseband signal to be processed, and determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal.
And S330, when the signal flow direction is determined to be the signal sending direction, selecting a coding processing unit matched with the target wireless communication mode from the gated baseband signal processing units, and modulating the target baseband signal by using the coding processing unit to obtain a coded signal.
Particularly, since there may be interference signals or jammers during signal transmission, and the spreading process will spread these interference signals or jammers, when the wireless communication mode of the target baseband signal is the skywalkone signal communication mode, the target baseband signal may not be spread, that is, the skywalkone signal communication signal is not modulated by the primary modulation processing unit, and the signal that has not been processed by the primary modulation processing unit is used as the first modulation signal.
S340, selecting a primary modulation processing unit matched with the target wireless communication mode from the gated baseband signal processing units, and modulating the coded signal by using the primary modulation processing unit to obtain a first modulation signal.
And S350, selecting a secondary modulation processing unit matched with the target wireless communication mode from the gated baseband signal processing units, and modulating the first modulation signal by using the secondary modulation processing unit to obtain a second modulation signal and sending the second modulation signal to a next processing unit.
According to the technical scheme provided by the embodiment of the invention, the signals to be transmitted are respectively matched with different baseband signal processing units according to different wireless communication modes of the target baseband signals, and the transmitted signals are obtained after coding and modulation processing, so that the synchronous data transmission of the Tiantong one-signal communication signals and the 4G land mobile communication signals and the synchronous data transmission of the Tiantong one-signal communication signals and the 5G land mobile communication signals are realized, the delay of data transmission is reduced, and the communication efficiency is improved.
Specific application scenario one
As shown in fig. 3B and fig. 3C, a specific application scenario of the present invention is to provide a baseband signal processing method based on the foregoing embodiment; in the application scenario, a terminal supporting concurrent satellite communication and 4G terrestrial mobile communication acquires data information sent by a mobile terminal a through a satellite, and sends the data information to a mobile terminal B through a 4G base station, and specifically, the method includes:
s101, gating a baseband signal processing unit matched with the concurrence of the skynet signal communication mode and the 4G land mobile communication mode from a plurality of preset standby baseband signal processing units according to the concurrence of the skynet signal communication mode and the 4G land mobile communication mode supported by the terminal.
S102, according to a target baseband signal, determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal.
Specifically, a signal receiving end of a terminal acquires a communication signal of the satellite of skynone number, and a signal sending end of the terminal sends the communication signal to a 4G base station; therefore, the signal flow direction of the receiving end is determined to be a receiving signal and the target wireless communication mode is a sky-communication one-signal communication mode; the signal flow of the second target baseband signal is a transmission signal and the target wireless communication mode is a 4G land mobile communication mode.
S103, selecting the despreading and demodulating unit as a primary demodulation processing unit, and selecting the first OFDM modulating unit as a secondary modulation processing unit.
And S104, selecting the 8PSK demodulation unit as a secondary demodulation processing unit, and selecting the first 16QAM modulation unit as a primary modulation processing unit.
And S105, selecting the first Turbo decoding unit as a decoding processing unit and selecting the second Turbo coding unit as an encoding processing unit.
S106, the terminal sends the acquired Tiantong one-number communication signal to the 4G base station.
A terminal supporting the concurrence of the skynone signal communication mode and the 4G land mobile communication mode acquires a communication signal sent by a mobile terminal A through a skynone first satellite, and acquires a decoding signal by taking the communication signal as a first target baseband signal and respectively processing the communication signal by a first-stage demodulation processing unit, a second-stage demodulation processing unit and a decoding processing unit configured in the above steps; and then the decoded signal is used as a second target baseband signal, and is respectively processed by the coding processing unit, the primary modulation processing unit and the secondary modulation processing unit configured in the steps to obtain a secondary modulation signal, and the terminal sends the secondary modulation signal to another mobile terminal B through the 4G base station, so that the synchronous data concurrence of the terminal is completed, and the whole process of sending data from the mobile terminal A to the other mobile terminal B is realized.
According to the technical scheme provided by the embodiment of the invention, the terminal acquires the data sent by the mobile terminal through the Tiantong first-number satellite and sends the data to the other mobile terminal through the 4G base station, so that the concurrence of satellite communication and land mobile communication is realized, the terminal simultaneously carries out different types of signal transmission at the receiving end and the sending end, the delay of data transmission is reduced, the synchronism of data is kept, and the communication efficiency is improved.
Specific application scenario two
As shown in fig. 3D and fig. 3E, the second specific application scenario of the present invention provides a baseband signal processing method based on the above-mentioned embodiment; in the application scenario, a terminal supporting concurrent satellite communication and 5G terrestrial mobile communication acquires data information sent by a mobile terminal C through a satellite, and sends the data information to a mobile terminal D through a 5G base station, and specifically, the method includes:
s201, gating a baseband signal processing unit matched with the concurrence of the skynet signal communication mode and the 5G land mobile communication mode from a plurality of preset standby baseband signal processing units according to the concurrence of the skynet signal communication mode and the 5G land mobile communication mode supported by the terminal.
S202, according to the target baseband signal, determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal.
Specifically, a signal receiving end of the terminal acquires a communication signal of the satellite of skynone number, and a signal sending end of the terminal sends the communication signal to the 5G base station; therefore, the signal flow direction of the receiving end is determined to be a receiving signal and the target wireless communication mode is a sky-communication one-signal communication mode; the signal flow of the second target baseband signal is a transmission signal and the target wireless communication mode is a 5G land mobile communication mode.
S203, selecting the despreading and demodulating unit as a primary demodulating and processing unit, and selecting the second OFDM modulating unit as a secondary modulating and processing unit.
And S204, selecting the 8PSK demodulation unit as a secondary demodulation processing unit, and selecting the 256QAM modulation unit as a primary modulation processing unit.
S205, selecting a first Turbo decoding unit as a decoding processing unit and selecting a first LDPC coding unit as a coding processing unit.
S206, the terminal sends the acquired Tiantong one-number communication signal to the 5G base station.
A terminal supporting the concurrence of the skynone signal communication mode and the 5G land mobile communication mode acquires a communication signal sent by a mobile terminal C through a skynone first satellite, and the communication signal is used as a first target baseband signal and is respectively processed by the primary demodulation processing unit, the secondary demodulation processing unit and the decoding processing unit configured in the above steps to acquire a decoding signal; and then, the decoded signal is used as a second target baseband signal and is respectively processed by the coding processing unit, the primary modulation processing unit and the secondary modulation processing unit configured in the steps to obtain a secondary modulation signal, and the terminal sends the secondary modulation signal to another mobile terminal D through the 5G base station, so that the synchronous data concurrence of the terminal is completed, and the whole process of sending data from the mobile terminal C to the other mobile terminal D is realized.
According to the technical scheme provided by the embodiment of the invention, the terminal acquires the data sent by the mobile terminal through the Tiantong first-number satellite and sends the data to the other mobile terminal through the 5G base station, so that the concurrence of satellite communication and land mobile communication is realized, the terminal simultaneously carries out different types of signal transmission at the receiving end and the sending end, the delay of data transmission is reduced, the synchronism of data is kept, and the communication efficiency is improved.
Example four
Fig. 4 is a block diagram of a signaling apparatus according to a fourth embodiment of the present invention, where the signaling apparatus specifically includes: a baseband signal processing unit acquisition module 410, a target baseband signal acquisition module 420, and a baseband signal processing module 430.
A baseband signal processing unit obtaining module 410, configured to gate, according to a concurrency type of a wireless communication mode supported by a terminal, a baseband signal processing unit matched with the concurrency type from a plurality of preset candidate baseband signal processing units, where the concurrency type includes: concurrence of satellite communication mode and land mobile communication mode;
a target baseband signal obtaining module 420, configured to obtain a target baseband signal to be processed, and determine a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal;
and a baseband signal processing module 430, configured to select a matched processing unit from the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode.
According to the technical scheme provided by the embodiment of the invention, after the concurrency type of the terminal is determined, the corresponding baseband signal processing unit is determined according to the signal flow direction of the target baseband signal and the wireless communication mode, and then the target baseband signal is modulated and coded or demodulated and decoded, so that different types of wireless communication signals can be simultaneously transmitted, the delay of data transmission is greatly reduced, and particularly for data needing to keep synchronism, data interaction in different transmission directions can be simultaneously carried out by the terminal.
Optionally, on the basis of the foregoing technical solution, the baseband signal processing module 430 specifically includes:
a first demodulation signal obtaining unit, configured to select, when it is determined that the signal flow direction is the signal receiving direction, a primary demodulation processing unit that matches the target wireless communication mode from among gated baseband signal processing units, and perform demodulation processing on the target baseband signal using the primary demodulation processing unit, to obtain a first demodulation signal;
a second demodulation signal acquisition unit, configured to select a secondary demodulation processing unit matching the target wireless communication mode from the gated baseband signal processing units, and perform demodulation processing on the first demodulation signal by using the secondary demodulation processing unit to obtain a second demodulation signal;
and the decoding signal acquisition unit is used for selecting a decoding processing unit matched with the target wireless communication mode from the gated baseband signal processing units, decoding the second demodulation signal by using the decoding processing unit, and sending the obtained decoding signal to the next processing unit.
Optionally, on the basis of the foregoing technical solution, the baseband signal processing unit obtaining module 410 specifically includes:
the first demodulation processing gating unit is used for gating the despreading and demodulation unit as a primary demodulation processing unit matched with the skynt one-satellite communication mode according to the concurrence of the skynt one-satellite communication mode and the 4G land mobile communication mode supported by the terminal, and gating the first OFDM demodulation processing unit as a primary demodulation processing unit matched with the 4G land mobile communication mode;
the second demodulation processing gating unit is used for gating the GMSK demodulation unit, the first QPSK demodulation unit or the 8PSK demodulation unit as a secondary demodulation processing unit matched with the skynoto first satellite communication mode, and gating the second QPSK demodulation unit, the first 16QAM demodulation unit or the first 64QAM demodulation unit as a secondary demodulation processing unit matched with the 4G land mobile communication mode;
and the first decoding processing gating unit is used for gating the first LDPC decoding unit or the first Turbo decoding unit as a decoding processing unit matched with the skyntong one-number satellite communication mode, and gating the second Turbo decoding unit or the convolutional decoding unit as a decoding processing unit matched with the 4G land mobile communication mode.
Optionally, on the basis of the above technical solution, the baseband signal processing unit obtaining module 410 further includes:
a third demodulation processing gating unit, which is used for gating a despreading demodulation unit as a primary demodulation processing unit matched with the satellite communication mode of skynone according to the concurrence of the satellite communication mode of skynone and the 5G land mobile communication mode supported by the terminal, and gating a second OFDM demodulation processing unit as a primary demodulation processing unit matched with the 5G land mobile communication mode;
a fourth demodulation processing gating unit, configured to gate the GMSK demodulation unit, the first QPSK demodulation unit, or the 8PSK demodulation unit as a secondary demodulation processing unit matched with the skynotong first satellite communication mode, and gate the third QPSK demodulation unit, the second 16QAM demodulation unit, the second 64QAM demodulation unit, or the 256QAM demodulation unit as a secondary demodulation processing unit matched with the 5G terrestrial mobile communication mode;
and the second decoding processing gating unit is used for gating the first LDPC decoding unit or the first Turbo decoding unit as a decoding processing unit matched with the satellite communication mode of the skynone-number one, and gating the second LDPC decoding unit or the Polar decoding unit as a secondary demodulation processing unit matched with the 5G land mobile communication mode.
Optionally, on the basis of the foregoing technical solution, the baseband signal processing module 430 further includes:
a coded signal obtaining unit, configured to select, when it is determined that the signal flow direction is the signal sending direction, a coded processing unit that matches the target wireless communication scheme from among gated baseband signal processing units, and perform modulation processing on the target baseband signal using the coded processing unit to obtain a coded signal;
the first modulation signal acquisition unit is used for selecting a primary modulation processing unit matched with the target wireless communication mode from the gated baseband signal processing unit and modulating the coded signal by using the primary modulation processing unit to obtain a first modulation signal;
and the second modulation signal acquisition unit is used for selecting a secondary modulation processing unit matched with the target wireless communication mode from the gated baseband signal processing unit, modulating the first modulation signal by using the secondary modulation processing unit, obtaining a second modulation signal and sending the second modulation signal to the next processing unit.
Optionally, on the basis of the above technical solution, the baseband signal processing unit obtaining module 410 further includes:
the first coding processing gating unit is used for gating a first LDPC coding unit or a first Turbo coding unit as a coding processing unit matched with the skynt one-number satellite communication mode and gating a second Turbo coding unit or a convolutional coding unit as a coding processing unit matched with the 4G land mobile communication mode according to the concurrence of the skynt one-number satellite communication mode and the 4G land mobile communication mode supported by the terminal;
the first modulation processing gating unit is used for gating the GMSK modulation unit, the first QPSK modulation unit or the 8PSK modulation unit as a primary modulation processing unit matched with the skynt one-number satellite communication mode, and gating the second QPSK modulation unit, the first 16QAM modulation unit or the first 64QAM modulation unit as a primary modulation processing unit matched with the 4G land mobile communication mode;
and the second modulation processing gating unit is used for gating the spread spectrum modulation unit as a secondary modulation processing unit matched with the skynt one-number satellite communication mode and gating the first OFDM modulation processing unit as a secondary modulation processing unit matched with the 4G land mobile communication mode.
Optionally, on the basis of the above technical solution, the baseband signal processing unit obtaining module 410 further includes:
the second coding processing gating unit is used for gating the first LDPC coding unit or the first Turbo coding unit as a coding processing unit matched with the skynt one-number satellite communication mode and gating the second LDPC coding unit or the Polar coding unit as a coding processing unit matched with the 5G terrestrial mobile communication mode according to the concurrence of the skynt one-number satellite communication mode and the 5G terrestrial mobile communication mode supported by the terminal;
a third modulation processing gating unit, configured to gate a GMSK modulation unit, a first QPSK modulation unit, or an 8PSK modulation unit as a primary modulation processing unit matched with the skynoto one satellite communication mode, and gate a third QPSK modulation unit, a second 16QAM modulation unit, a second 64QAM modulation unit, or a 256QAM modulation unit as a primary modulation processing unit matched with the 5G land mobile communication mode;
and the fourth modulation processing gating unit is used for gating the spread spectrum modulation unit as a secondary modulation processing unit matched with the skynt one satellite communication mode and gating the second OFDM modulation processing unit as a secondary modulation processing unit matched with the 5G land mobile communication mode.
The device can execute the baseband signal processing method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. For technical details not described in detail in this embodiment, reference may be made to the method provided in any embodiment of the present invention.
EXAMPLE five
Fig. 5 is a schematic structural diagram of an apparatus according to a fifth embodiment of the present invention, as shown in fig. 5, the apparatus includes a processor 50, a memory 51, an input device 52, and an output device 53; the number of processors 50 in the device may be one or more, and one processor 50 is taken as an example in fig. 5; the device processor 50, the memory 51, the input device 52 and the output device 53 may be connected by a bus or other means, as exemplified by the bus connection in fig. 5.
The memory 51 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as the modules (the baseband signal processing unit acquiring module 410, the target baseband signal acquiring module 420, and the baseband signal processing module 430) corresponding to the baseband signal processing apparatus according to the fourth embodiment of the present invention. The processor 50 executes various functional applications of the device and data processing by executing software programs, instructions and modules stored in the memory 51, that is, implements the above-described baseband signal processing method.
The memory 51 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 51 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 51 may further include memory located remotely from the processor 50, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 52 is operable to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 53 may include a display device such as a display screen.
EXAMPLE six
An embodiment of the present invention further provides a computer-readable storage medium, which when executed by a computer processor is configured to perform a baseband signal processing method, the method including:
according to a concurrency type of a wireless communication mode supported by a terminal, gating a baseband signal processing unit matched with the concurrency type from a plurality of preset standby baseband signal processing units, wherein the concurrency type comprises: concurrence of satellite communication mode and land mobile communication mode;
acquiring a target baseband signal to be processed, and determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal;
and selecting a matched processing unit from the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the baseband signal processing method provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute the baseband signal processing method according to the embodiments of the present invention.
It should be noted that, in the embodiment of the baseband signal processing apparatus, the units and modules included in the embodiment are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (9)

1. A baseband signal processing method, comprising:
according to a concurrency type of a wireless communication mode supported by a terminal, gating a baseband signal processing unit matched with the concurrency type from a plurality of preset standby baseband signal processing units, wherein the concurrency type comprises: concurrence of satellite communication mode and land mobile communication mode;
acquiring a target baseband signal to be processed, and determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal;
selecting a matched processing unit from the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode;
the selecting a matched processing unit from the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode includes:
when the signal flow direction is determined to be the signal receiving direction, selecting a primary demodulation processing unit matched with the target wireless communication mode from gated baseband signal processing units, and demodulating the target baseband signal by using the primary demodulation processing unit to obtain a first demodulation signal; selecting a secondary demodulation processing unit matched with the target wireless communication mode from gated baseband signal processing units, and demodulating the first demodulation signal by using the secondary demodulation processing unit to obtain a second demodulation signal;
selecting a decoding processing unit matched with the target wireless communication mode from gated baseband signal processing units, and decoding the second demodulation signal by using the decoding processing unit to obtain a decoding signal and sending the decoding signal to a next processing unit;
the demodulating the target baseband signal by using the first-stage demodulation processing unit to obtain a first demodulated signal, further includes: and when the wireless communication mode of the target baseband signal is a universal serial bus (OTO) signal communication mode, taking a signal which is not processed by the primary demodulation processing unit as a first demodulation signal.
2. The method of claim 1, wherein gating the baseband signal processing unit matching the concurrency type from a plurality of preset alternative baseband signal processing units according to the concurrency type of the wireless communication mode supported by the terminal comprises:
according to the concurrence of the satellite communication mode of the skynt one and the 4G land mobile communication mode supported by the terminal, gating a baseband signal processing unit which is matched with the concurrence of the satellite communication mode of the skynt one and the 4G land mobile communication mode from a plurality of standby baseband signal processing units; the gated baseband signal processing unit comprises a gated despreading and demodulating unit which is used as a primary demodulating and processing unit matched with the skynt one satellite communication mode, and a gated first OFDM demodulating and processing unit which is used as a primary demodulating and processing unit matched with the 4G land mobile communication mode; gating a GMSK demodulation unit, a first QPSK demodulation unit or an 8PSK demodulation unit as a secondary demodulation processing unit matched with the skynt one-number satellite communication mode, and gating a second QPSK demodulation unit, a first 16QAM demodulation unit or a first 64QAM demodulation unit as a secondary demodulation processing unit matched with the 4G land mobile communication mode; and gating a first LDPC decoding unit or a first Turbo decoding unit as a decoding processing unit matched with the skynone first satellite communication mode, and gating a second Turbo decoding unit or a convolutional decoding unit as a decoding processing unit matched with the 4G land mobile communication mode.
3. The method of claim 1, wherein gating the baseband signal processing unit matching the concurrency type from a plurality of preset alternative baseband signal processing units according to the concurrency type of the wireless communication mode supported by the terminal comprises:
according to the concurrence of the satellite communication mode of the skynt one and the 5G land mobile communication mode supported by the terminal, gating a baseband signal processing unit which is matched with the concurrence of the satellite communication mode of the skynt one and the 5G land mobile communication mode from a plurality of standby baseband signal processing units; the gated baseband signal processing unit comprises a gated despreading and demodulating unit which is used as a primary demodulating and processing unit matched with the skynt one satellite communication mode, and a gated second OFDM demodulating and processing unit which is used as a primary demodulating and processing unit matched with the 5G land mobile communication mode; gating a GMSK demodulation unit, a first QPSK demodulation unit or an 8PSK demodulation unit as a secondary demodulation processing unit matched with the skynt one-number satellite communication mode, and gating a third QPSK demodulation unit, a second 16QAM demodulation unit, a second 64QAM demodulation unit or a 256QAM demodulation unit as a secondary demodulation processing unit matched with the 5G land mobile communication mode; and gating a first LDPC decoding unit or a first Turbo decoding unit as a decoding processing unit matched with the skynt one satellite communication mode, and gating a second LDPC decoding unit or a Polar decoding unit as a decoding processing unit matched with the 5G land mobile communication mode.
4. The method of claim 1, wherein selecting a matched processing unit from among the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode comprises:
when the signal flow direction is determined to be the signal sending direction, selecting a coding processing unit matched with the target wireless communication mode from gated baseband signal processing units, and modulating the target baseband signal by using the coding processing unit to obtain a coded signal;
selecting a primary modulation processing unit matched with the target wireless communication mode from gated baseband signal processing units, and modulating the coded signal by using the primary modulation processing unit to obtain a first modulation signal;
and selecting a secondary modulation processing unit matched with the target wireless communication mode from the gated baseband signal processing units, and modulating the first modulation signal by using the secondary modulation processing unit to obtain a second modulation signal and sending the second modulation signal to a next processing unit.
5. The method according to claim 4, wherein gating the baseband signal processing unit matching the concurrency type from a plurality of preset alternative baseband signal processing units according to the concurrency type of the wireless communication mode supported by the terminal comprises:
according to the concurrence of the satellite communication mode of the skynt one and the 4G land mobile communication mode supported by the terminal, gating a baseband signal processing unit which is matched with the concurrence of the satellite communication mode of the skynt one and the 4G land mobile communication mode from a plurality of standby baseband signal processing units; the gated baseband signal processing unit comprises a gated first LDPC coding unit or a gated first Turbo coding unit which is used as a coding processing unit matched with the skyntong one-number satellite communication mode, and a gated second Turbo coding unit or a gated convolutional coding unit which is used as a coding processing unit matched with the 4G land mobile communication mode; gating a GMSK modulation unit, a first QPSK modulation unit or an 8PSK modulation unit as a primary modulation processing unit matched with the Tiantong first satellite communication mode, and gating a second QPSK modulation unit, a first 16QAM modulation unit or a first 64QAM modulation unit as a primary modulation processing unit matched with the 4G land mobile communication mode; and the gating spread spectrum modulation unit is used as a secondary modulation processing unit matched with the skynone first satellite communication mode, and the gating first OFDM modulation processing unit is used as a secondary modulation processing unit matched with the 4G land mobile communication mode.
6. The method according to claim 4, wherein gating the baseband signal processing unit matching the concurrency type from among a plurality of baseband signal processing units having a preset candidate according to the concurrency type of the wireless communication mode supported by the terminal comprises:
according to the concurrence of the satellite communication mode of the skynt one and the 5G land mobile communication mode supported by the terminal, gating a baseband signal processing unit which is matched with the concurrence of the satellite communication mode of the skynt one and the 5G land mobile communication mode from a plurality of standby baseband signal processing units; the gated baseband signal processing unit comprises a gated first LDPC coding unit or a gated first Turbo coding unit which is used as a coding processing unit matched with the satellite communication mode of the skynone-number one, and a gated second LDPC coding unit or a gated Polar coding unit which is used as a coding processing unit matched with the 5G land mobile communication mode; gating a GMSK modulation unit, a first QPSK modulation unit or an 8PSK modulation unit as a primary modulation processing unit matched with the skynone first satellite communication mode, and gating a third QPSK modulation unit, a second 16QAM modulation unit, a second 64QAM modulation unit or a 256QAM modulation unit as a primary modulation processing unit matched with the 5G land mobile communication mode; and the gating spread spectrum modulation unit is used as a secondary modulation processing unit matched with the satellite communication mode of the skynone number one, and the gating second OFDM modulation processing unit is used as a secondary modulation processing unit matched with the 5G land mobile communication mode.
7. A baseband signal processing apparatus, comprising:
a baseband signal processing unit obtaining module, configured to gate, according to a concurrency type of a wireless communication mode supported by a terminal, a baseband signal processing unit matched with the concurrency type from a plurality of baseband signal processing units preset with multiple candidates, where the concurrency type includes: concurrence of satellite communication mode and land mobile communication mode;
the target baseband signal acquisition module is used for acquiring a target baseband signal to be processed and determining a signal flow direction corresponding to the target baseband signal and a target wireless communication mode corresponding to the target baseband signal;
the baseband signal processing module is used for selecting a matched processing unit from the gated baseband signal processing units to perform baseband signal processing on the target baseband signal according to the signal flow direction and the target wireless communication mode;
the baseband signal processing module further includes:
a first demodulation signal obtaining unit, configured to select, when it is determined that the signal flow direction is the signal receiving direction, a primary demodulation processing unit that matches the target wireless communication mode from among gated baseband signal processing units, and perform demodulation processing on the target baseband signal using the primary demodulation processing unit, to obtain a first demodulation signal;
a second demodulation signal obtaining unit, configured to select a secondary demodulation processing unit matched with the target wireless communication mode from the gated baseband signal processing unit, and perform demodulation processing on the first demodulation signal by using the secondary demodulation processing unit to obtain a second demodulation signal;
a decoding signal obtaining unit, configured to select, from the gated baseband signal processing units, a decoding processing unit that matches the target wireless communication mode, and perform decoding processing on the second demodulation signal using the decoding processing unit, so as to obtain a decoding signal, and send the decoding signal to a next processing unit;
the demodulating the target baseband signal by using the first-stage demodulation processing unit to obtain a first demodulated signal, further includes: and when the wireless communication mode of the target baseband signal is a universal serial bus (OTO) signal communication mode, taking a signal which is not processed by the primary demodulation processing unit as a first demodulation signal.
8. An apparatus, characterized in that the apparatus comprises:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the baseband signal processing method of any one of claims 1-6.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a baseband signal processing method according to any one of claims 1 to 6.
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