CN114759936A - Signal transmitting module, signal transmitting method and signal transmitting equipment - Google Patents

Signal transmitting module, signal transmitting method and signal transmitting equipment Download PDF

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Publication number
CN114759936A
CN114759936A CN202210385427.2A CN202210385427A CN114759936A CN 114759936 A CN114759936 A CN 114759936A CN 202210385427 A CN202210385427 A CN 202210385427A CN 114759936 A CN114759936 A CN 114759936A
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signal
module
phase
selection information
modulated
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CN114759936B (en
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陈希
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Shenzhen Ousi Microelectronics Technology Co ltd
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Shenzhen Ousi Microelectronics Technology Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/02Transmitters
    • H04B1/04Circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20Modulator circuits; Transmitter circuits
    • H04L27/2032Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/023Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

The application discloses a signal transmitting module, a signal transmitting method and signal transmitting equipment, and belongs to the technical field of wireless communication. The signal transmitting equipment comprises a signal generating module, a mixer module, an oscillator module and an antenna module; the signal generating module is used for generating a signal to be modulated and outputting the signal to be modulated to the mixer module; the oscillator module is used for generating at least two groups of phase signals with different phases and outputting the at least one group of phase signals to the mixer module; the signal generation module is also used for generating phase selection information, and the phase selection information is used for selecting the phase signal output to the mixer module by the oscillator module in the idle time period of the signal to be modulated; the frequency mixer module is used for carrying out frequency mixing modulation on the phase signal selected according to the phase selection information and the signal to be modulated to obtain a target modulation signal; the antenna module is used for transmitting the target modulation signal. The signal modulation method and the signal modulation device can realize signal modulation in different modes and improve the signal transmission rate.

Description

Signal transmitting module, signal transmitting method and signal transmitting equipment
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a signal transmitting module, a signal transmitting method, and a signal transmitting device.
Background
With the rapid development of the wireless communication technology field, more and more functions are available in the terminal, for example, more and more terminals may be provided with functions of shooting, monitoring, video, and the like. In addition, when various terminals perform mutual communication, application of various wireless communication techniques is also indispensable.
And between the two signal transmission devices, one is used as a signal transmitting device, the other is used as a signal receiving device, the signal transmitting device transmits the modulated communication signal to the signal receiving device, and the signal receiving device completes information transmission by receiving the communication signal. Among them, in an Ultra Wide Band (UWB) protocol, currently, a modulation scheme of various signals supported at present generally employs a Binary Phase Shift Keying (BPSK) modulation scheme for modulation, and since a communication rate modulated by the modulation scheme is low, a problem of low signal transmission rate between communication devices employing the UWB communication protocol is caused.
Disclosure of Invention
The embodiment of the application provides a signal transmitting module, a signal transmitting method and signal transmitting equipment, which can realize signal modulation in other modes and improve the signal transmission rate under the condition of not changing the structure of a transmitter of the current UWB protocol.
In one aspect, an embodiment of the present application provides a signal transmitting module, which includes a signal generating module, a mixer module, an oscillator module, and an antenna module;
the signal generating module is used for generating a signal to be modulated and outputting the signal to be modulated to the mixer module;
the oscillator module is used for generating at least two groups of phase signals with different phases and outputting the at least one group of phase signals to the mixer module;
the signal generating module is further configured to generate phase selection information, where the phase selection information is used to select a phase signal output by the oscillator module to the mixer module in an idle period of the signal to be modulated;
the frequency mixer module is used for carrying out frequency mixing modulation on the phase signal selected according to the phase selection information and the signal to be modulated to obtain a target modulation signal;
the antenna module is used for transmitting the target modulation signal.
The signal transmitting module comprises a signal generating module, a mixer module, an oscillator module and an antenna module; the signal generating module is used for generating a signal to be modulated and outputting the signal to be modulated to the mixer module; the oscillator module is used for generating at least two groups of phase signals with different phases and outputting the at least one group of phase signals to the mixer module; the signal generation module is also used for generating phase selection information, and the phase selection information is used for selecting a phase signal output to the mixer module by the oscillator module in an idle time period of a signal to be modulated; the frequency mixer module is used for carrying out frequency mixing modulation on the phase signal selected according to the phase selection information and the signal to be modulated to obtain a target modulation signal; the antenna module is used for transmitting the target modulation signal. According to the method and the device, the phase signal input by the carrier oscillator is determined through the phase selection information carried in the idle time period, so that different modulation modes are realized based on the phase selection information carried in the idle time period, signal modulation of other modes is realized under the condition that the structure of a transmitter of the current UWB protocol is not changed, and the signal transmission rate is improved.
As an optional implementation manner, in an aspect of this embodiment, the phase selection information includes a first type of phase selection information and a second type of phase selection information, and the oscillator module is further configured to determine a type of the phase selection information in the idle period before generating at least two sets of phase signals with different phases and outputting the at least one set of phase signals to the mixer module;
the oscillator module is further configured to determine that a phase signal input by the carrier oscillator to the mixer is a cosine function signal when the type of the phase selection information in the idle period is the first type of phase selection signal;
the oscillator module is further configured to determine that a phase signal input by the carrier oscillator to the mixer is a sine function signal when the kind of the phase selection information in the idle period is the second information.
In the embodiment of the application, for different phase selection information carried in the idle time period, corresponding different phase signals are provided, and QPSK signal modulation of a signal to be modulated is realized through a cosine function signal and a sine function signal.
As an optional implementation manner, in an aspect of the embodiment of the present application, the signal to be modulated further includes transmission time periods, the transmission time periods and the idle time periods in the signal to be modulated are alternately set, phase selection information in each idle time period of at least two groups of intervals in the signal to be modulated is different, and the mixer module is further configured to switch the function signal input to the mixer module by the oscillator module to the phase signal selected by the phase selection information in the idle time period before reaching the transmission time period in the signal to be modulated and before performing mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal.
In the embodiment of the application, before the transmission time period is reached, the function signal in the carrier oscillator is switched to the phase signal, so that the signal transmitting equipment modulates the content transmitted in the transmission time period according to the phase signal, and the accuracy of signal modulation is improved.
As an optional implementation manner, in an aspect of the embodiment of the present application, the idle period further includes switching point information, where the switching point information is located at a midpoint of the idle period, and the switching point information is used to instruct the oscillator module to switch the output phase signal according to the phase selection information.
In the embodiment of the application, the function signal in the carrier oscillator is switched to the phase signal before the transmission time period is reached through the switching time of the switching point information prompt function in the idle time period, so that the accuracy of modulating the content transmitted in the transmission time period by the signal transmitting equipment according to the phase signal is improved.
As an optional implementation manner, in an aspect of the embodiment of the present application, the signal to be modulated includes a plurality of target symbols, each of the target symbols is divided into two partitions, and each partition includes one transmission period and one idle period.
In the embodiment of the present application, each target symbol is divided into one transmission time period and one idle time period, and different phase selection information may be added in each transmission time period, so that the signal transmitting apparatus can accurately modulate the content transmitted in each transmission time period according to the phase signal.
As an optional implementation manner, in an aspect of the embodiment of the present application, the oscillator module is further configured to determine, according to a type of phase selection information carried by each idle time period in each partition, each phase signal input to the mixer module before the transmission time period of the oscillator module in each partition;
the mixer module is further configured to modulate the signal to be modulated according to the respective phase signal of each partition in the signal to be modulated.
In the embodiment of the application, for different information in each idle time period, the phase signals input to the mixer by the carrier oscillator are different, so that the effect of modulating the transmission information in different transmission time periods according to the corresponding phase signals is realized, and the adaptability of signal modulation is improved.
As an optional implementation manner, in an aspect of this embodiment of the present application, the signal transmitting module further includes a digital-to-analog converter module;
The digital-to-analog converter is used for converting the signal to be modulated from a digital signal to an analog signal before the mixer module performs frequency mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal.
In the embodiment of the application, the signal to be modulated is converted through the digital-to-analog converter, and the converted signal and the phase signal are conveniently subjected to frequency mixing processing in the frequency mixer, so that the efficiency of signal modulation is improved.
In another aspect, an embodiment of the present application provides a signal transmission method, where the method is applied to a signal transmission device, and the method includes:
adding phase selection information in an idle time period in a signal to be modulated to generate the signal to be modulated;
determining a phase signal input from an oscillator module to a mixer module in the signal transmitting equipment according to the phase selection information in the idle time period;
performing frequency mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal;
and transmitting the target modulation signal.
As an optional implementation manner, in an aspect of the embodiments of the present application, before determining, according to the phase selection information in the idle period, a phase signal input to a mixer module by an oscillator module in the signal transmitting apparatus, the determining further includes:
Determining a kind of phase selection information in the idle period;
the determining, according to the phase selection information in the idle period, the phase signal input by the oscillator module to the mixer module in the signal transmitting apparatus includes:
when the type of the phase selection information carried in the idle time period is the first type of phase selection signal, determining that the phase signal input to the mixer module by the oscillator module is a cosine function signal;
when the kind of the phase selection information carried in the idle period is the second information, it is determined that the phase signal input to the mixer module by the oscillator module is a sine function signal.
In another aspect, an embodiment of the present application provides a signal transmitting apparatus, where the signal transmitting apparatus includes at least one signal transmitting module according to the above one aspect, the signal transmitting apparatus further includes a memory and a processor, where the memory stores a computer program, and when the computer program is executed by the processor, the processor is enabled to implement the signal transmitting method according to the above one aspect.
In another aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the signal transmission method according to the above another aspect and its optional modes.
In another aspect, the present application provides a computer program product, which when run on a computer causes the computer to execute the signal transmission method according to the above one aspect.
In another aspect, the present application provides an application distribution platform, which is configured to distribute a computer program product, wherein when the computer program product runs on a computer, the computer is caused to execute the signal transmission method according to the above aspect.
The technical scheme provided by the embodiment of the application can at least comprise the following beneficial effects:
the signal transmitting module comprises a signal generating module, a mixer module, an oscillator module and an antenna module; the signal generation module is used for generating a signal to be modulated and outputting the signal to be modulated to the mixer module; the oscillator module is used for generating at least two groups of phase signals with different phases and outputting the at least one group of phase signals to the mixer module; the signal generation module is also used for generating phase selection information, and the phase selection information is used for selecting a phase signal output to the mixer module by the oscillator module in an idle time period of a signal to be modulated; the frequency mixer module is used for carrying out frequency mixing modulation on the phase signal selected according to the phase selection information and the signal to be modulated to obtain a target modulation signal; the antenna module is used for transmitting the target modulation signal. According to the method and the device, the phase signal input by the carrier oscillator is determined through the phase selection information carried in the idle time period, so that different modulation modes are realized based on the phase selection information carried in the idle time period, signal modulation of other modes is realized under the condition that the structure of a transmitter of the current UWB protocol is not changed, and the signal transmission rate is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a connection between terminals through a network according to an exemplary embodiment of the present application;
fig. 2 is a schematic structural diagram of a signal transmitting module according to an exemplary embodiment of the present application;
fig. 3 is a schematic structural diagram of a signal transmitting module according to an exemplary embodiment of the present application;
FIG. 4 is a schematic diagram of a target symbol according to an exemplary embodiment of the present application;
fig. 5 is a flowchart of a method of transmitting a signal according to an exemplary embodiment of the present application;
fig. 6 is a flowchart of a method of transmitting a signal according to another exemplary embodiment of the present application;
FIG. 7 is a schematic diagram of a target symbol according to another exemplary embodiment of the present application;
fig. 8 is a schematic structural diagram of a signal transmitting apparatus according to an exemplary embodiment of the present application;
Fig. 9 is a block diagram of a signal transmitting apparatus according to an exemplary embodiment of the present application;
fig. 10 is a schematic structural diagram of a terminal according to an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
It should be noted that the terms "first", "second", "third" and "fourth", etc. in the description and claims of the present application are used for distinguishing different objects, and are not used for describing a specific order. The terms "comprises," "comprising," and "having," and any variations thereof, of the embodiments of the present application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The scheme provided by the application can be used in a terminal with a short-range wireless communication function used in daily life of people, and in an application scenario when the position of a signal source transmitting a short-range wireless signal in a space needs to be determined, for convenience of understanding, first, some terms and application architectures related to the embodiments of the application are briefly introduced below.
Binary Phase Shift Keying (BPSK) modulation is one of the conversion schemes for converting analog signals into data values, and represents an information Keying Phase Shift scheme by using a combination of complex waves having a Phase offset. BPSK uses a reference sine wave and a phase-inverted wave, and allows one to be 0 and the other to be 1, thereby allowing simultaneous transmission of information of 2 values (1 bit).
Quadrature Phase Shift Keying (QPSK) modulation is a digital modulation scheme. It is divided into absolute phase shift and relative phase shift. Since the absolute phase shift method has a phase ambiguity problem, the relative phase shift method DQPSK is mainly used in practice. The method is widely applied to wireless communication at present and becomes a very important modulation and demodulation mode in modern communication.
Ultra Wide Band (UWB) is a carrier-free communication technology that uses non-sinusoidal narrow pulses on the nanosecond to picosecond scale to transmit data. By transmitting very low power signals over a wide frequency spectrum, UWB can achieve data transmission rates of hundreds of mbits/s to Gbit/s over a range of about 10 meters.
Please refer to fig. 1, which illustrates a schematic structural diagram of a network connection between terminals according to an exemplary embodiment of the present application. As shown in fig. 1, a terminal 110 and a number of base stations 120 are included.
Wherein the terminal 110 is a terminal having cellular mobile communication capabilities. The terminal 110 may communicate with one or more core networks via a Radio Access Network (RAN), and the terminal 110 may be a mobile terminal such as a mobile phone (or referred to as a "cellular" phone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device. For example, a Station (Station), a subscriber unit (subscriber unit), a subscriber Station (subscriber Station), a mobile Station (mobile), a remote Station (remote Station), an access point (ap), a remote terminal (remote), an access terminal (access terminal), a user equipment (user terminal), a user agent (user agent), a user equipment (user device), or a user terminal (UE). Alternatively, the terminal 110 may be a device of an unmanned aerial vehicle.
The base station 120 may be a network side device in a wireless communication system. The wireless communication system may be a 4th generation mobile communication (4G) system, which is also called a long term evolution system; alternatively, the wireless communication system may be a 5G system, which is also called a New Radio (NR) system. Alternatively, the wireless communication system may be a next generation system of a 5G system.
The base station 120 may be an evolved node b (eNB) used in a 4G system. Alternatively, the base station 120 may also be a base station (gNB) adopting a centralized distributed architecture in a 5G system. When the base station 120 adopts a centralized distribution architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DU). A Protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer is set in the central unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the embodiment of the present application does not limit a specific implementation manner of the base station 120.
The base station 120 and the terminal 110 may establish a radio connection over the air. In various embodiments, the wireless air interface is based on fourth generation mobile communication network technology (4G) standard; or the wireless air interface is based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.
Optionally, the wireless communication system may further include a network management device 130.
Several base stations 120 are connected to the network management device 130, respectively. The network Management device 130 may be a core network device in the wireless communication system, for example, the network Management device 130 may be a Mobility Management Entity (MME) in the EPC. Alternatively, the Network management device may also be other core Network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), or a Home Subscriber Server (HSS), for example. The implementation form of the network management device 130 is not limited in the embodiment of the present application.
Optionally, the terminal 110 may also be a camera, a sensor (such as an infrared sensor, a light sensor, a vibration sensor, a sound sensor, and the like), a smart television, a smart robot, a smart speaker, a smart refrigerator, a smart air conditioner, a smart rice cooker, a water purifier, and other devices that are fixedly installed or move in a small range. Alternatively, the terminal 110 may be a mobile device such as an MP3 player (Moving Picture Experts Group Audio Layer III, motion Picture Experts Group Audio Layer IV), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion Picture Experts Group Audio Layer 4), or an intelligent bluetooth headset.
In the related art, between two signal transmission devices, one is used as a signal transmission device and the other is used as a signal reception device, the signal transmission device transmits a modulated communication signal to the signal reception device, and the signal reception device completes transmission of information by receiving the communication signal. Among them, in an Ultra Wide Band (UWB) protocol, a modulation scheme of various signals supported at present is generally modulated by a Binary Phase Shift Keying (BPSK) modulation scheme, and since a highest communication rate supported at present by the UWB protocol is 31.2MBits/s, a communication rate in the modulation scheme is low compared to other modulation schemes (for example, QPSK modulation), which causes a problem that a signal transmission rate between communication apparatuses using the UWB communication protocol is low.
In order to improve the rate of signal transmission under the UWB communication protocol, the application provides a solution, which can realize signal modulation in other forms and improve the communication rate of the UWB under the condition of not changing the structure of the current UWB transmitter.
Please refer to fig. 2, which illustrates a schematic structural diagram of a signal transmitting module according to an exemplary embodiment of the present application. As shown in fig. 2, the signal transmitting module 200 includes a signal generating module 201, a mixer module 202, an oscillator module 203, and an antenna module 204.
The antenna comprises a signal generation module 201, a mixer module 202, an oscillator module 203 and an antenna module 204. The signal generation module 201 comprises a first output port 201a and a second output port 201b, the mixer module 202 comprises a first input port 202a, a second input port 202b and a third output port 202c, the oscillator module 203 comprises a third input port 203a and a fourth output port 203b, and the antenna module 204 comprises a fourth input port 204 a.
The signal generating module 201 is electrically connected to the first input port 202a of the mixer module 202 through the first output port 201a, the signal generating module 201 is electrically connected to the third input port 203a of the oscillator module 203 through the second output port 201b, the mixer module 202 is electrically connected to the fourth output port 203b of the oscillator module 203 through the second input port 202b, and the mixer module 202 is electrically connected to the fourth input port 204a of the antenna module 204 through the third output port 202 c.
The signal generating module 201 is configured to generate a signal to be modulated and output the signal to be modulated to the mixer module. Optionally, the signal format of the signal to be modulated includes at least one target symbol, where the target symbol includes a transmission time period and an idle time period. For example, the signal generating module may be a baseband module (baseband), and when signal transmission is required, the signal transmitting apparatus needs to generate a signal to be modulated through the baseband module.
The signal generating module 201 is further configured to generate phase selection information, the phase selection information is used to select a phase signal that is output to the mixer module 202 by the oscillator module 203 in an idle period of the signal to be modulated, and the oscillator module 202 is configured to generate at least two groups of phase signals with different phases and output at least one group of phase signals to the mixer module. The phase selection information corresponds to the phase signal, and the signal generating module 201 may add the generated phase selection information to the signal to be modulated, that is, the signal generating module 201 may also generate the corresponding signal to be modulated by adding the phase selection information in the idle period in the target symbol.
The mixer module 203 is configured to perform mixing modulation on the phase signal selected according to the phase selection information and the signal to be modulated, and obtain a target modulation signal. The mixing modulation includes a QPSK modulation manner, that is, the mixer module 203 may implement QPSK modulation through the phase signal and the signal to be modulated, so as to obtain a target modulation signal.
The antenna module 204 is used for transmitting the target modulation signal. The obtained target modulation signal is transmitted through the antenna module 204.
In summary, the signal transmitting module according to the embodiment of the present invention includes a signal generating module, a mixer module, an oscillator module, and an antenna module; the signal generating module is used for generating a signal to be modulated and outputting the signal to be modulated to the mixer module; the oscillator module is used for generating at least two groups of phase signals with different phases and outputting the at least one group of phase signals to the mixer module; the signal generation module is also used for generating phase selection information, and the phase selection information is used for selecting a phase signal output to the mixer module by the oscillator module in an idle time period of a signal to be modulated; the frequency mixer module is used for carrying out frequency mixing modulation on the phase signal selected according to the phase selection information and the signal to be modulated to obtain a target modulation signal; the antenna module is used for transmitting the target modulation signal. According to the method and the device, the phase signal input by the carrier oscillator is determined through the phase selection information carried in the idle time period, so that different modulation modes are realized based on the phase selection information carried in the idle time period, signal modulation of other modes is realized under the condition that the structure of a transmitter of the current UWB protocol is not changed, and the signal transmission rate is improved.
In a possible implementation manner, the signal transmitting module further includes a digital-to-analog converter module, where the digital-to-analog converter is configured to convert the signal to be modulated from a digital signal to an analog signal before the mixer module performs frequency mixing modulation according to the phase signal and the signal to be modulated to obtain the target modulation signal, so as to improve the efficiency of signal modulation.
Please refer to fig. 3, which illustrates a schematic structural diagram of a signal transmitting module according to an exemplary embodiment of the present application. As shown in fig. 3, the signal transmitting module 300 includes a signal generating module 301, a digital-to-analog converter 302(DAC), a mixer module 303, an oscillator module 304, and an antenna module 305.
The signal generation module 301 includes a first output port 301a and a second output port 301b, the digital-to-analog converter 302 includes a first input port 302a and a third output port 302b, the mixer module 303 includes a second input port 303a, a third input port 303b and a fourth output port 303c, the oscillator module 304 includes a fourth input port 304a and a fifth output port 304b, and the antenna module 305 includes a fifth input port 305 a.
The signal generating module 301 is electrically connected to a first input port 302a of the digital-to-analog converter 302 through a first output port 301a, a third output port 302b of the digital-to-analog converter 302 is electrically connected to a second input port 303a of the mixer module 303, the signal generating module 301 is electrically connected to a fourth input port 304a of the oscillator module 304 through a second output port 301b, the mixer module 303 is electrically connected to a fifth output port 304b of the oscillator module 304 through a third input port 303b, and the mixer module 303 is electrically connected to a fifth input port 305a of the antenna module 305 through a fourth output port 303 c.
The signal generating module 301 is configured to generate a signal to be modulated and output the signal to be modulated to the mixer module. Optionally, the signal format of the signal to be modulated includes at least one target symbol, where the target symbol includes a transmission time period and an idle time period. For example, the signal generating module may be a baseband module (baseband), and when signal transmission is required, the signal transmitting apparatus needs to generate a signal to be modulated through the baseband module.
The signal to be modulated comprises at least one target symbol, and the target symbol comprises a transmission time period and an idle time period. Please refer to fig. 4, which illustrates a schematic structural diagram of a target symbol according to an exemplary embodiment of the present application. As shown in fig. 4, a target symbol 401 includes a transmission period 402 and an idle period 403, where data can be transmitted in the transmission period 402, and phase selection information for selecting a function signal to be input to a mixer by a subsequent carrier oscillator can be transmitted in the idle period 403. Wherein each transmission period corresponds to each idle period when more than two target symbols are consecutive.
The signal generating module 301 is further configured to generate phase selection information, where the phase selection information is used to select a phase signal output by the oscillator module 304 to the mixer module 303 in an idle period of the signal to be modulated.
The oscillator module 303 is configured to generate at least two sets of phase signals with different phases and output the at least one set of phase signals to the mixer module. The phase selection information corresponds to the phase signal, and the signal generation module 301 may add the generated phase selection information to the signal to be modulated, that is, the signal generation module 301 may also generate the corresponding signal to be modulated by adding the phase selection information in the idle time period in the target symbol.
Optionally, the phase selection information includes first-type phase selection information and second-type phase selection information, and the oscillator module 303 is further configured to determine the type of the phase selection information in the idle period before generating at least two sets of phase signals with different phases and outputting the at least one set of phase signals to the mixer module; the oscillator module 303 is further configured to determine that the phase signal input to the mixer module 304 by the oscillator module 303 is a cosine function signal when the type of the phase selection information in the idle period is the first type of phase selection signal; the oscillator module 303 is further configured to determine that the phase signal input to the mixer module 304 by the oscillator module 303 is a sine function signal when the kind of the phase selection information in the idle period is the second information.
For example, when the phase selection information carried in the idle period is the first information, it is determined that the phase signal input to the mixer module 304 by the oscillator module 303 is a cosine function signal. When the phase selection information carried in the idle period is the second information, it is determined that the phase signal input to the mixer module 304 by the oscillator module 303 is a sine function signal. Wherein the first information may be 0 in the bit information, and the second information is 1 in the bit information. That is, if the phase selection information added in the idle period is 0, the oscillator module 303 may determine that the phase signal input to the mixer module 304 by the oscillator module 303 is a cosine function signal.
Please refer to table 1, which shows a table of correspondence between phase selection information and phase signals according to an exemplary embodiment of the present application.
Phase selection information Phase signal
0 Cosine function signal
1 Sine function signal
TABLE 1
As shown in table 1, in the case where the above bit information is 0 and 1, respectively, the phase signals are a cosine function signal and a sine function signal, respectively, thereby implementing QPSK modulation. For example, when the phase selection information carried in the idle period is 0, it is determined that the phase signal input by the oscillator module 303 to the mixer module 304 is cos (wt), and when the phase selection information carried in the idle period is 1, it is determined that the phase signal input by the oscillator module 303 to the mixer module 304 is sin (wt). Thereby enabling selection of different phase functions by the mixer module 304.
Optionally, the transmission time periods and the idle time periods in the signal to be modulated are alternately set, and the phase selection information in each idle time period of at least two groups of intervals (one idle time period and one transmission time period in the signal to be modulated can be regarded as one group) in the signal to be modulated is different, for example, in the foregoing fig. 4, a target symbol may sequentially include a first transmission time period and a first idle time period, and a second transmission time period and a second idle time period, and the phase selection information in the first idle time period and the second transmission time period of the two groups of intervals may be different, and the mixer module 304 is further configured to switch the function signal input by the oscillator module 303 to the mixer module 304 to the phase signal selected by the phase selection information in the idle time period before the phase signal selected by the oscillator module 303 and the signal to be modulated are subjected to mixing modulation and the target modulation signal is obtained and before the transmission time period in the signal to be modulated arrives. For example, in the process of performing the mixing modulation, different phase selection information is set for each idle time period in the target symbol, before a transmission time period corresponding to the idle time period comes, the function signal input to the mixer module 304 by the oscillator module 303 is switched to the phase signal corresponding to the phase selection information, and when the transmission time period comes, the mixer module 304 adopts the phase signal corresponding to the phase selection information, thereby ensuring the accuracy of the mixing modulation.
Optionally, the idle period further includes switching point information, where the switching point information is located at a midpoint of the idle period, and the switching point information is used to instruct the oscillator module 303 to switch the output phase signal according to the phase selection information. That is, the switching point information corresponds to a time for instructing the oscillator module 303 to switch the phase selection information, and when the switching point information is reached, the output phase signal is switched according to the phase selection information. For example, the idle period further includes switching point information, where the switching point information is located at a midpoint of the idle period, and the switching point information is used to instruct the oscillator module 303 to switch the phase selection information, so as to switch the function signal. For example, in fig. 5, each of the first idle period and the second idle period has its own switching point information (I/Q switching point), and each switching point information may be located at a midpoint of its own idle period, and when a midpoint (I/Q switching point) in the first idle period before the second transmission period is reached, the phase selection information corresponding to the idle period is switched, and the function output by the oscillator module 303 to the mixer module 304 is switched to the sin (wt) branch, so as to achieve the effect of switching different function signals.
The mixer module 304 is configured to perform mixing modulation according to the phase signal and the signal to be modulated, and obtain a target modulation signal. The mixing modulation includes a QPSK modulation manner, that is, the mixer module 304 may implement QPSK modulation through the phase signal and the signal to be modulated, so as to obtain the target modulation signal. Optionally, the digital-to-analog converter 302 is configured to convert the signal to be modulated from a digital signal to an analog signal before the mixer module 304 performs mixing modulation according to the phase signal and the signal to be modulated to obtain the target modulation signal.
The antenna module 305 is used to transmit the target modulated signal. The resulting target modulated signal is transmitted through the antenna module 305.
Optionally, the signal to be modulated includes a plurality of target symbols, each target symbol is divided into two partitions, and each partition includes a transmission time period and an idle time period. The oscillator module 303 is further configured to determine, according to the type of the phase selection information carried in each idle time period in each partition, each phase signal input to the mixer module 304 by the oscillator module 303 in the transmission time period in each partition; the mixer module 304 is further configured to modulate the signal to be modulated according to the respective phase signal of each partition in the signal to be modulated.
That is, in this application, the target symbol may be further divided into two partitions, each partition includes a transmission time period and an idle time period, and the oscillator module 303 may further determine, according to phase selection information carried in each idle time period in each partition, each phase signal input to the mixer module 304 by the oscillator module 303 in the transmission time period in each partition. That is, if the target symbol is divided into two partitions in the protocol, and each partition includes a transmission time period and an idle time period, the oscillator module 303 may further determine, according to the phase selection information carried in each idle time period in each partition, the respective phase signals input to the mixer module 304 by the oscillator module 303 in the transmission time period in each partition. When different information is added in the idle period, the phase signal input by the oscillator module 303 is also different.
In summary, the signal transmitting module according to the embodiment of the present invention includes a signal generating module, a mixer module, an oscillator module, and an antenna module; the signal generating module is used for generating a signal to be modulated and outputting the signal to be modulated to the mixer module; the oscillator module is used for generating at least two groups of phase signals with different phases and outputting the at least one group of phase signals to the mixer module; the signal generation module is also used for generating phase selection information, and the phase selection information is used for selecting the phase signal output to the mixer module by the oscillator module in the idle time period of the signal to be modulated; the frequency mixer module is used for carrying out frequency mixing modulation on the phase signal selected according to the phase selection information and the signal to be modulated to obtain a target modulation signal; the antenna module is used for transmitting the target modulation signal. According to the method and the device, the phase signal input by the carrier oscillator is determined through the phase selection information carried in the idle time period, so that different modulation modes are realized based on the phase selection information carried in the idle time period, signal modulation of other modes is realized under the condition that the structure of a transmitter of the current UWB protocol is not changed, and the signal transmission rate is improved.
The following is an embodiment of a method for transmitting a signal provided by the present application, and for details that are not disclosed in the embodiment, reference may be made to the embodiment of the signal transmitting module described above in the present application.
Referring to fig. 5, a flowchart of a method for transmitting a signal according to an exemplary embodiment of the present application is shown. The method can be applied to various terminals in the scenario shown in fig. 1, which may be a signal transmitting device comprising a signal generating module, a mixer, a carrier oscillator and an antenna module, wherein the mixer corresponds to the mixer module in the above-mentioned embodiment, and the carrier oscillator corresponds to the oscillator module in the above-mentioned embodiment, and the method is performed by the signal transmitting device. As shown in fig. 5, the signal transmission method includes the following steps.
Step 501, adding phase selection information in an idle time period in a signal to be modulated to generate the signal to be modulated.
The signal to be modulated comprises at least one target symbol, and the target symbol comprises a transmission time period and an idle time period.
Optionally, the signal transmitting device may generate a signal to be modulated through its own signal generating module, where a signal format of the signal to be modulated includes at least one target symbol, and the target symbol includes a transmission time period and an idle time period. For example, the signal generating module may be a baseband module (baseband), and when signal transmission is required, the signal transmitting apparatus needs to generate a signal to be modulated through the baseband module. The structure of the signal to be modulated can refer to the description in fig. 4, and is not described herein again.
Step 502, according to the phase selection information in the idle period, determining the phase signal input from the oscillator module to the mixer module in the signal transmitting apparatus.
The phase selection information carried in the idle period may be bit information added in the process of generating the signal to be modulated. In this application, the signal transmitting apparatus may determine the phase signal input from the carrier oscillator to the mixer based on the added bit information. That is, after the signal transmitting apparatus generates the signal to be modulated, the signal transmitting apparatus may determine, according to the phase selection information carried in the idle period, a phase signal that the carrier oscillator needs to input to the mixer in the corresponding transmission period in the target symbol.
Step 503, performing mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal.
Optionally, the signal transmitting device transmits the target function signal to the mixer through the carrier oscillator, transmits the generated signal to be modulated to the mixer through the signal generating module, and performs mixing modulation on the signal to be modulated and the mixer.
Step 504, transmitting the target modulation signal.
Optionally, the signal transmitting device transmits the target modulation signal through the antenna module.
In summary, the signal transmitting apparatus according to the embodiment of the present application includes a signal generating module, a mixer, a carrier oscillator, and an antenna module, and generates a signal to be modulated, where the signal to be modulated includes at least one target symbol, and the target symbol includes a transmission time period and an idle time period; determining a phase signal input to a mixer by a carrier oscillator according to phase selection information carried in the idle time period; and performing mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal. According to the method and the device, the phase signal input by the carrier oscillator is determined through the phase selection information carried in the idle time period, so that different modulation modes are realized based on the phase selection information carried in the idle time period, signal modulation of other modes is realized under the condition that the structure of a transmitter of the current UWB protocol is not changed, and the signal transmission rate is improved.
In a possible implementation manner, taking the phase signal as a cosine function signal or a sine function signal as an example, under the condition that the transmitter structure of the current UWB protocol is not changed, QPSK modulation is implemented, and the rate of signal transmission is improved.
Referring to fig. 6, a flowchart of a method for transmitting a signal according to an exemplary embodiment of the present application is shown. The method can be applied to various terminals in the scenario shown in fig. 1, which may be a signal transmitting device comprising a signal generating module, a mixer, a carrier oscillator and an antenna module, wherein the mixer corresponds to the mixer module in the above-mentioned embodiment, and the carrier oscillator corresponds to the oscillator module in the above-mentioned embodiment, and the method is performed by the signal transmitting device. As shown in fig. 6, the signal transmission method includes the following steps.
Step 601, generating a signal to be modulated, where the signal to be modulated includes at least one target symbol, and the target symbol includes a transmission time period and an idle time period.
Optionally, in the signal transmitting apparatus, when signal transmission is required, the signal transmitting apparatus generates a signal to be modulated through its own signal generating module, where a signal format of the signal to be modulated includes at least one target symbol, and in the UWB communication protocol, a structure of one target symbol may be as shown in fig. 3, and in this application, the generated signal to be modulated may include at least one target symbol.
The process of generating the signal to be modulated may be to generate the signal to be modulated by adding phase selection information in an idle period of a target symbol of a first transmission signal, where the first transmission signal is any one of UWB ultra-wideband signals. For example, the first modulation signal is an HPRF PRF-249.6 MHz modulation signal defined in the 802.15.4z protocol, in which phase selection information is added to an idle period, so that the phase signal in the carrier oscillator can be subsequently converted based on the added phase selection information. Optionally, the first modulation signal may also be in other signal formats defined by the 802.15.4a and 802.15.4z protocols, which is not limited in this application.
Optionally, the phase selection information may be bit information, for example, represented by 0 and 1, and when the signal to be modulated is generated, 0 is added to an idle time period in the first modulation signal to implement generation of the signal to be modulated, or 1 is added to an idle time period in the first modulation signal to implement generation of the signal to be modulated.
Optionally, in the signal to be modulated, the set transmission time period may be used to transmit a pulse signal, and the set idle time period may be used to prevent multipath interference and interference between multiple users.
Step 602, when the phase selection information carried in the idle period is the first information, determining that the phase signal input by the carrier oscillator to the mixer is a cosine function signal.
Step 603, when the phase selection information carried in the idle period is the second information, determining that the phase signal input by the carrier oscillator to the mixer is a sine function signal.
Optionally, when the phase selection information carried in the idle period is the first information, it is determined that the phase signal input by the carrier oscillator to the mixer is a cosine function signal. When the phase selection information carried in the idle period is the second information, it is determined that the phase signal input to the mixer by the carrier oscillator is a sine function signal. Wherein the first information may be 0 in the above bit information. That is, if the phase selection information added in the idle period is 0, in this step, it may be determined that the phase signal of the carrier oscillator input to the mixer is a cosine function signal.
Similarly to the above table 1, in the case where the above bit information is 0 and 1, respectively, the phase signals are a cosine function signal and a sine function signal, respectively, thereby implementing QPSK modulation. For example, when the phase selection information carried in the idle period is 0, the signal transmitting apparatus may determine that the phase signal input to the mixer by the carrier oscillator is cos (wt), and when the phase selection information carried in the idle period is 1, the signal transmitting apparatus may determine that the phase signal input to the mixer by the carrier oscillator is sin (wt). Thereby enabling the mixer to select different phase functions.
Optionally, in this application, the target symbol may be further divided into two partitions, each partition includes a transmission time period and an idle time period, and the signal transmitting device may further determine, according to phase selection information carried in each idle time period in each partition, each phase signal input by the carrier oscillator to the forward mixer in the transmission time period in each partition. That is, if the target symbol is divided into two partitions in the protocol, and each partition contains a transmission time period and an idle time period, the signal transmitting device may further determine, according to phase selection information carried in each idle time period in each partition, a respective phase signal input to the mixer by the carrier oscillator in the transmission time period in each partition. When different information is added in the idle period, the function signals input by the carrier oscillator are different.
Still taking as an example that the signal to be modulated adds phase selection information in the idle period in the above-mentioned HPRF PRF-249.6 MHz modulation signal, please refer to fig. 7, which shows a schematic structural diagram of a target symbol according to an exemplary embodiment of the present application. As shown in fig. 7, one target symbol 700 includes two partitions, a first partition 701 and a second partition 702, a first transmission period 701a and a first idle period 701b are included in the first partition 701, and a second transmission period 702a and a second idle period 702b are included in the second partition 702. If the phase selection information added in the first idle period 701b is 0 and the phase selection information added in the second idle period 702b is 1, the signal transmitting apparatus may further determine that the phase signal input to the forward mixer by the carrier oscillator in the first transmission period 701a in the first partition 701 is a cosine function signal and the phase signal input to the forward mixer in the second transmission period 702a in the first partition 701 is a sine function signal according to the phase selection information carried by each idle period in each partition.
And step 604, before the transmission time period is reached, switching the function signal input to the mixer by the carrier oscillator to a phase signal.
Optionally, in the process of performing mixing modulation, before a transmission time period in the target symbol comes, a function signal input by the carrier oscillator to the mixer is switched to a phase signal, and when the transmission time period comes, the mixer uses the corresponding phase signal, so that accuracy of the mixing modulation is ensured.
In a possible implementation manner, the switching point information may be set in an idle period, for example, the idle period further includes switching point information, the switching point information is located at a midpoint of the idle period, and the switching point information is used for indicating a time when the carrier oscillator performs function signal switching. For example, in fig. 7, each of the first idle period and the second idle period has its own switching point information (I/Q switching point), and each of the switching point information may be located at a midpoint of the respective idle period, and when a midpoint (I/Q switching point) in the first idle period before the second transmission period is reached, the function of the carrier oscillator output to the mixer is switched to sin (wt) branch, so as to achieve the effect of switching different function signals.
Step 605, performing mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal.
Optionally, the signal transmitting device performs mixing modulation on the phase signal and the signal to be modulated in the mixer to obtain the target modulation signal. Corresponding to the above implementation manner, the phase selection information added in the idle time periods in different partitions is different, and in this step, the signal transmitting device modulates the signal to be modulated according to the respective phase signal of each partition in the signal to be modulated.
Optionally, the signal transmitting device further includes a digital-to-analog converter, and the digital-to-analog converter converts the signal to be modulated from a digital signal to an analog signal before performing mixing modulation according to the phase signal and the signal to be modulated to obtain the target modulation signal; and performing mixing modulation according to the phase signal and the analog signal to obtain a target modulation signal.
Optionally, taking a UWB transmitting device as an example, please refer to fig. 8, which illustrates a schematic structural diagram of a signal transmitting device according to an exemplary embodiment of the present application. As shown in fig. 8, the signal transmitting apparatus 800 includes a baseband module 801, a digital-to-analog converter 802(DAC), a mixer 803, a carrier oscillator 808, and an antenna module 805. As shown in fig. 8, the baseband module 801 generates a signal to be modulated in a digital signal waveform, the digital signal waveform is converted into an analog signal waveform by the DAC, and the analog signal is input to the mixer for mixing. The carrier oscillator 808 performs phase selection through phase selection information carried in an idle time period to realize switching of different function signals, so that a mixing signal adopted in the mixer realizes two signals in orthogonal phases, thereby realizing QPSK signal modulation of a signal to be modulated, and finally, the signal is transmitted through the antenna module, and the QPSK signal modulation and transmission processes of UWB signals are completed.
And step 606, transmitting the target modulation signal.
In summary, the signal transmitting apparatus according to the embodiment of the present application includes a signal generating module, a mixer, a carrier oscillator, and an antenna module, and generates a signal to be modulated, where the signal to be modulated includes at least one target symbol, and the target symbol includes a transmission time period and an idle time period; determining a phase signal input to a mixer by a carrier oscillator according to phase selection information carried in the idle time period; and performing mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal. According to the method and the device, the phase signal input by the carrier oscillator is determined through the phase selection information carried in the idle time period, so that different modulation modes are realized based on the phase selection information carried in the idle time period, signal modulation of other modes is realized under the condition that the structure of a transmitter of the current UWB protocol is not changed, and the signal transmission rate is improved.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Referring to fig. 9, which shows a block diagram of a signal transmitting apparatus 900 according to an exemplary embodiment of the present application, the signal transmitting apparatus 900 may be applied to a signal transmitting device, where the signal transmitting device includes a signal generating module, a mixer, a carrier oscillator, and an antenna module, and the signal transmitting apparatus 900 includes:
a first generating module 901, configured to add phase selection information in an idle time period in a signal to be modulated, and generate the signal to be modulated;
a first determining module 902, configured to determine, according to the phase selection information in the idle period, a phase signal input to a mixer module by an oscillator module in the signal transmitting apparatus;
a first obtaining module 903, configured to perform mixing modulation according to the phase signal and the signal to be modulated, so as to obtain a target modulation signal.
A first sending module 904, configured to send the target modulation signal.
In summary, the signal transmitting apparatus according to the embodiment of the present application includes a signal generating module, a mixer, a carrier oscillator, and an antenna module, and generates a signal to be modulated, where the signal to be modulated includes at least one target symbol, and the target symbol includes a transmission time period and an idle time period; determining a phase signal input to a mixer by a carrier oscillator according to phase selection information carried in the idle time period; and performing mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal. According to the method and the device, the phase signal input by the carrier oscillator is determined through the phase selection information carried in the idle time period, so that different modulation modes are realized based on the phase selection information carried in the idle time period, signal modulation of other modes is realized under the condition that the structure of a transmitter of the current UWB protocol is not changed, and the signal transmission rate is improved.
Optionally, the phase selection information includes a first type of phase selection information and a second type of phase selection information, and the apparatus further includes:
a second determining module, configured to determine a kind of phase selection information in the idle period before determining a phase signal input to a mixer module by an oscillator module in the signal transmitting apparatus according to the phase selection information in the idle period;
the first determining module is configured to determine that the phase signal input to the mixer module by the oscillator module is a cosine function signal when the type of the phase selection information carried in the idle period is the first type of phase selection signal;
when the kind of the phase selection information carried in the idle period is the second information, it is determined that the phase signal input to the mixer module by the oscillator module is a sine function signal.
The embodiment of the present application further provides a signal transmitting apparatus, which includes at least one signal transmitting module as described in the above embodiments. The signal transmitting apparatus further includes a memory and a processor, the memory stores therein a computer program, and the computer program, when executed by the processor, causes the processor to implement the signal transmitting method as in the above-described embodiments. Alternatively, the signal transmitting apparatus may be applied to a terminal, and the steps performed by the signal transmitting apparatus in the foregoing embodiments may also be performed by the terminal instead.
Fig. 10 is a schematic structural diagram of a terminal according to an exemplary embodiment of the present application. As shown in fig. 10, terminal 1000 can include a Central Processing Unit (CPU) 1001, a system Memory 1004 including a Random Access Memory (RAM) 1002 and a Read Only Memory (ROM) 1003, and a system bus 1005 connecting system Memory 1004 and CPU 1001. The terminal 1000 can also include a basic Input/Output System (I/O System) 1008, which facilitates transfer of information between devices within the computer, and a mass storage device 1007, which stores an operating System 1012, application programs 1013, and other program modules 1014.
The basic input/output system 1006 includes a display 1008 for displaying information and an input device 1009 such as a mouse, keyboard, etc. for a user to input information. Wherein the display 1008 and the input device 1009 are both connected to the central processing unit 1001 through an input-output controller 1010 connected to the system bus 1005. The basic input/output system 1006 may also include an input/output controller 1010 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, the input-output controller 1010 also provides output to a display screen, a printer, or other type of output device.
The mass storage device 1007 is connected to the central processing unit 1001 through a mass storage controller (not shown) connected to the system bus 1005. The mass storage device 1007 and its associated computer-readable media provide non-volatile storage for terminal 1000. That is, the mass storage device 1007 may include a computer-readable medium (not shown) such as a hard disk or CD-ROM (Compact disk Read-Only Memory) drive.
The computer readable media may include computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), flash Memory or other solid state Memory technology, CD-ROM, DVD (Digital Video Disc), or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that the computer storage media is not limited to the foregoing. The system memory 1004 and mass storage device 1007 described above may be collectively referred to as memory.
The terminal 1000 can be connected to the internet or other network devices through a network interface unit 1011 connected to the system bus 1005.
The memory further includes one or more programs, the one or more programs are stored in the memory, and the central processing unit 1001 implements all or part of the steps performed by the terminal in the methods provided in the above embodiments of the present application by executing the one or more programs. Alternatively, the terminal may be integrated in a vehicle as an in-vehicle terminal.
In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product.
The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others. The embodiment of the application also discloses a computer readable storage medium which stores a computer program, wherein the computer program is executed by a processor to realize the method in the embodiment of the method.
Embodiments of the present application also disclose a computer program product comprising a non-transitory computer readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform the method in the above method embodiments.
The embodiment of the present application further discloses an application publishing platform, wherein the application publishing platform is configured to publish a computer program product, and when the computer program product runs on a computer, the computer is enabled to execute the method in the method embodiment.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are all alternative embodiments and that the acts and modules involved are not necessarily required for this application.
In various embodiments of the present application, it should be understood that the sequence numbers of the above-mentioned processes do not imply a necessary order of execution, and the order of execution of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated units, if implemented as software functional units and sold or used as separate products, may be stored in a computer accessible memory. Based on such understanding, the technical solutions of the present application, which essentially or partly contribute to the prior art, or all or part of the technical solutions, may be embodied in the form of a software product, which is stored in a memory and includes several requests for causing a computer device (which may be a personal computer, a server, or a network device, etc., and may specifically be a processor in the computer device) to execute some or all of the steps of the above methods of the embodiments of the present application.
It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by hardware instructions of a program, and the program may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM), or other Memory, such as a magnetic disk, or a combination thereof, A tape memory, or any other medium readable by a computer that can be used to carry or store data.
The foregoing describes a signal transmitting module, a signal transmitting method, and a signal transmitting device disclosed in the embodiments of the present application by way of example, and a principle and an implementation of the present application are described herein by way of example, and the description of the foregoing embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A signal transmission module is characterized by comprising a signal generation module, a mixer module, an oscillator module and an antenna module;
the signal generation module is used for generating a signal to be modulated and outputting the signal to be modulated to the mixer module;
the oscillator module is used for generating at least two groups of phase signals with different phases and outputting at least one group of phase signals to the mixer module;
the signal generating module is further configured to generate phase selection information, where the phase selection information is used to select a phase signal output by the oscillator module to the mixer module in an idle time period of the signal to be modulated;
the frequency mixer module is used for carrying out frequency mixing modulation on the phase signal selected according to the phase selection information and the signal to be modulated to obtain a target modulation signal;
the antenna module is used for transmitting the target modulation signal.
2. The signal transmitting module of claim 1, wherein the phase selection information comprises a first type of phase selection information and a second type of phase selection information, and the oscillator module is further configured to determine a type of the phase selection information in the idle period before generating at least two sets of phase signals with different phases and outputting the at least one set of phase signals to the mixer module;
The oscillator module is further configured to determine that the phase signal input to the mixer module by the oscillator module is a cosine function signal when the type of the phase selection information in the idle period is the first type of phase selection signal;
the oscillator module is further configured to determine that the phase signal input to the mixer module by the oscillator module is a sine function signal when the kind of the phase selection information in the idle period is the second information.
3. The signal transmitting module of claim 1, wherein the signal to be modulated further includes transmission time periods, the transmission time periods and the idle time periods in the signal to be modulated are alternately set, phase selection information in each idle time period of at least two groups of intervals in the signal to be modulated is different, and the mixer module is further configured to switch the function signal input to the mixer module by the oscillator module to the phase signal selected by the phase selection information in the idle time period before reaching the transmission time period in the signal to be modulated and before performing mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal.
4. The signal transmitting module of claim 3, wherein the idle period further comprises switching point information, the switching point information is located at a midpoint of the idle period, and the switching point information is used to instruct the oscillator module to switch the output phase signal according to the phase selection information.
5. The signal transmission module of claim 3, wherein the signal to be modulated includes a plurality of target symbols, each of the target symbols is divided into two partitions, and each partition includes a transmission period and an idle period.
6. The signal transmitting module of claim 5, wherein the oscillator module is further configured to determine, according to a type of phase selection information carried in each idle period in each partition, each phase signal input to the mixer module by the oscillator module before the transmission period in each partition;
the mixer module is further configured to modulate the signal to be modulated according to the respective phase signal of each partition in the signal to be modulated.
7. The signal transmitting module of any one of claims 1 to 6, further comprising a digital-to-analog converter module;
The digital-to-analog converter is used for converting the signal to be modulated from a digital signal to an analog signal before the mixer module performs frequency mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal.
8. A signal transmission method, wherein the method is applied to a signal transmission device, and wherein the method comprises:
adding phase selection information in an idle time period in a signal to be modulated to generate the signal to be modulated;
determining a phase signal input to a mixer module by an oscillator module in the signal transmitting equipment according to the phase selection information in the idle time period;
performing frequency mixing modulation according to the phase signal and the signal to be modulated to obtain a target modulation signal;
and transmitting the target modulation signal.
9. The method of claim 8, wherein the phase selection information comprises a first type of phase selection information and a second type of phase selection information, and before the determining the phase signal input from the oscillator module to the mixer module in the signal transmitting apparatus according to the phase selection information in the idle period, the method further comprises:
Determining a kind of phase selection information in the idle period;
the determining, according to the phase selection information in the idle period, the phase signal input by the oscillator module to the mixer module in the signal transmitting apparatus includes:
when the type of the phase selection information carried in the idle time period is the first type of phase selection signal, determining that the phase signal input to the mixer module by the oscillator module is a cosine function signal;
when the kind of the phase selection information carried in the idle period is the second information, determining that the phase signal input to the mixer module by the oscillator module is a sine function signal.
10. A signal transmission apparatus, characterized in that it comprises at least one signal transmission module according to any one of claims 1 to 7.
CN202210385427.2A 2022-04-13 Signal transmitting module, signal transmitting method and signal transmitting equipment Active CN114759936B (en)

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