CN117294372A - Frequency conversion control method, device and system - Google Patents
Frequency conversion control method, device and system Download PDFInfo
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- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method, a device and a system for controlling frequency conversion, wherein the method comprises the following steps: acquiring a frequency conversion reference frequency; calculating a frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point; calculating a frequency conversion frequency number according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset, wherein the frequency conversion coefficient is a coefficient determined according to the frequency conversion target frequency; and transmitting the calculated frequency conversion target frequency and frequency conversion frequency number to a frequency conversion module for controlling the frequency conversion module to convert the signal data and exchanging information with the communication module. The invention dynamically sets the center frequency and the bandwidth according to the needs, does not need to redesign a chip or reflow a chip, adapts the communication module to different private networks, meets the requirements of the private network frequency bands, expands the application range and reduces the development cost and the development period.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for controlling frequency conversion.
Background
With the development of wireless communication, for different application scenarios, devices need to work in different frequency bands, especially private network devices, and need to work in the frequency band of the private network. In order to meet the above requirements, the conventional method is that the terminal is implemented by adopting FPGA (english: field Programmable Gate Array, chinese: field programmable gate array) so as to meet the requirements of the private network frequency band, which has the following drawbacks:
1. the whole physical layer, protocol stack and the like need to be redeveloped, and the development period is long;
2. inflexible, can only be used in private networks, and cannot be better compatible or expand applications;
3. the price is high, the development period is long, the cost is high, and the price is correspondingly raised due to small quantity;
4. the volume is large, and because the FPGA chip is adopted, the volume is relatively large, and flexible application is limited;
5. the power consumption is high, and the FPGA is adopted to realize the regional sleep control is difficult to carry out, so that the power consumption is high.
If the private network FPGA is made into a dedicated chip, there are the following disadvantages:
1. the design and development period is long, and generally needs half a year to one year;
2. the modification of the whole chip is influenced by the change of the radio frequency, so that the flexibility is poor;
3. the special chip has smaller usage amount than the common commercial chip, so the development cost of each special chip is high, and the product cost cannot be reduced.
Therefore, how to meet the requirements of the private network frequency band and reduce the implementation cost is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In order to overcome the defects that the prior private network frequency band requirement is difficult to meet and the implementation cost is high, the invention provides a method, a device and a system for controlling frequency conversion.
In order to achieve the above object, according to a first aspect of the present invention, an embodiment of the present invention provides a method for controlling a frequency conversion, including the steps of:
acquiring a frequency conversion reference frequency;
calculating a frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point;
calculating a frequency conversion frequency number according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset, wherein the frequency conversion coefficient is a coefficient determined according to the frequency conversion target frequency;
and transmitting the calculated frequency conversion target frequency and frequency conversion frequency number to a frequency conversion module for controlling the frequency conversion module to convert the signal data and exchanging information with the wireless communication module.
Optionally, the acquiring the frequency conversion reference frequency includes:
scanning an idle frequency band;
selecting a reference frequency point from the idle frequency band;
and determining the frequency conversion reference frequency according to the difference between the reference frequency point and the central frequency point.
Optionally, before sending the calculated frequency conversion target frequency and the frequency conversion frequency number to the frequency conversion module, the method further includes:
and deleting the idle frequency band where the frequency conversion target frequency is located when the frequency band interference intensity of the frequency conversion target frequency and the adjacent network is greater than a threshold value or the frequency conversion target frequency is in a forbidden frequency band, and rescanning the idle frequency band.
Optionally, the frequency conversion number is calculated according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset, and is calculated according to the following formula:
,
wherein, N represents the frequency number of the frequency conversion, phi represents the frequency conversion reference frequency, k represents the frequency conversion coefficient, and delta represents the frequency point number reference offset.
Optionally, the frequency conversion coefficient has the following mathematical relationship with the frequency conversion target frequency:
,
where k represents a frequency conversion coefficient, and f represents a frequency conversion target frequency.
According to a second aspect of the present invention, an embodiment of the present invention further provides a frequency conversion control apparatus, including:
the acquisition module is used for acquiring the frequency conversion reference frequency;
the first calculation module is used for calculating the frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point;
the second calculation module is used for calculating a frequency conversion frequency number according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset, wherein the frequency conversion coefficient is a coefficient determined according to the frequency conversion target frequency;
the control module is used for sending the calculated frequency conversion target frequency and frequency conversion frequency number to the frequency conversion module and controlling the frequency conversion module to convert the data signal and interact information with the wireless communication module.
Optionally, the acquisition module is further configured to,
scanning an idle frequency band;
selecting a reference frequency point from the idle frequency band;
and determining the frequency conversion reference frequency according to the difference between the reference frequency point and the central frequency point.
Optionally, the second calculation module calculates the frequency number of the frequency to be converted according to the following formula:
,
wherein, N represents the frequency number of the frequency conversion, phi represents the frequency conversion reference frequency, k represents the frequency conversion coefficient, and delta represents the frequency point number reference offset.
Optionally, the frequency conversion coefficient has the following mathematical relationship with the frequency conversion target frequency:
,
where k represents a frequency conversion coefficient, and f represents a frequency conversion target frequency.
According to a third aspect of the present invention, an embodiment of the present invention further provides a frequency conversion control system, including:
the device comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the frequency conversion control method in the embodiment when executing the computer program;
the frequency conversion module is used for converting the data signal according to the received frequency conversion target frequency and the frequency conversion frequency number and exchanging information with the wireless communication module.
As described above, the method, device and system for controlling frequency conversion provided by the embodiment of the invention have the following beneficial effects: acquiring a frequency conversion reference frequency; calculating a frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point; calculating a frequency conversion frequency number according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset, wherein the frequency conversion coefficient is a coefficient determined according to the frequency conversion target frequency; and transmitting the calculated frequency conversion target frequency and frequency conversion frequency number to a frequency conversion module for controlling the frequency conversion module to convert the signal data and exchanging information with the communication module. The invention provides a new architecture algorithm, which can avoid redesigning the chip or re-streaming the chip, maximally reduce the cost and improve the application range of the chip. The center frequency and the bandwidth can be dynamically set according to the needs, so that terminals or chips only supporting commercial versions can be conveniently adapted to different private networks, the demands of private network users are met, the application range of commercial chips is expanded, and the development cost and the period of private network equipment are reduced.
Drawings
Fig. 1 is a schematic flow chart of a frequency conversion control method according to an embodiment of the present invention;
fig. 2 is a flow chart of a method for acquiring a frequency conversion reference frequency according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a frequency conversion control device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a frequency conversion control system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a frequency conversion module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another frequency conversion module according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Please refer to fig. 1 to 6. It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings rather than the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
The frequency conversion control method provided by the embodiment of the invention aims at an application scene comprising a wireless communication chip and a wireless communication module. Specifically, the wireless communication chip refers to a wireless communication chip commercially available or ready for commercial use in the market, and supports different wireless communication standards or waveforms; the wireless communication module is developed secondarily on the basis of a common commercial wireless communication chip, and a packaged socket is provided, so that a user can insert the wireless communication module into a board card of the user directly. The implementation main body of the frequency conversion control method provided by the invention can be any type of processor such as MCU (English: microcontroller Unit, chinese: micro control unit), CPU and the like, and the processor, the wireless communication chip and the wireless communication module convert data information through intermediate equipment such as a frequency conversion module or a module, so that data information interaction is realized.
Referring to fig. 1, a flow chart of a frequency conversion control method provided by an embodiment of the present invention is shown in fig. 1, and an embodiment of the present invention shows a flow of a processor implementing frequency conversion control processing.
Step S101: and acquiring the frequency conversion reference frequency.
In particular embodiments, the wireless communication module generally has its own operating parameters including, but not limited to, frequency range, bandwidth, center frequency point, reference frequency point, and adaptation to the corresponding communication standard. In an exemplary embodiment, the frequency range of the wireless communication module may be 3.3G-3.8G, the bandwidth is 500MHz, the center frequency point is 3.5GHz, the reference frequency point is 3.45GHz, and the standard 3gpp R15, R16, R17 is adapted. Of course, it should be noted that the working parameters of the wireless communication module may be any other values, and the parameters of the wireless communication module are selected and determined according to the specific application scenario, which is not limited in the present invention. For example, the frequency range of the wireless communication module can be 1.8G-2.3G, the bandwidth is 100MHz, the center frequency point is 2.1GHz, the reference frequency point is 2.15GHz, and the wireless communication module is adapted to the standard 3GPP R9.
In the first implementation, a preset frequency-converted reference frequency may be obtained. The preset frequency conversion reference frequency can be input through external equipment and stored in a register for being read by a processor so as to convert data information into corresponding frequency. Specifically, in an exemplary embodiment, in order to convert 5.8Ghz data information, taking the example that the center frequency point of the wireless communication module is 3.5Ghz, a frequency conversion reference frequency of 2.3Ghz needs to be stored in a register in advance. Thus, a user can configure corresponding frequency conversion reference frequency through the input device according to actual use requirements, so that frequency conversion operation of different frequencies is realized.
In a second implementation case, referring to fig. 2, a flow chart of a method for obtaining a frequency conversion reference frequency according to an embodiment of the present invention is shown in fig. 2, where the embodiment of the present invention shows a process for dynamically obtaining the frequency conversion reference frequency, and includes the following steps:
step S1011: and scanning the idle frequency band.
And starting sweep frequency searching in an automatic searching mode, and detecting an idle frequency band. The specific implementation process is not described in detail in the embodiment of the present invention. In an exemplary embodiment, the detected idle frequency band may be 3GHz-3.9GHz.
Step S1012: and selecting a reference frequency point from the idle frequency band.
And selecting a reference frequency point from the idle frequency bands obtained in the steps, and taking the idle frequency band 3GHz-3.9GHz detected in the steps as an example, wherein the reference frequency point can be 3.6GHz.
Step S1013: and determining the frequency conversion reference frequency according to the difference between the reference frequency point and the central frequency point.
In an exemplary embodiment, the center frequency point of the communication module is 2.1GHz, which is 1.5GHz different from the reference frequency point, and the frequency conversion reference frequency can be set to be 1.5GHz.
The method for acquiring the frequency conversion reference frequency provided by the embodiment of the invention can dynamically adjust according to the use scene without depending on preset data, expands the application range and has high flexibility.
Step S102: and calculating the frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point.
In an exemplary embodiment, the frequency parameter after the frequency conversion is correspondingly shifted according to the frequency conversion reference frequency. Taking the frequency range of the wireless communication module before frequency conversion of 3.3G-3.8G, the bandwidth of 500MHz, the center frequency point of 3.5GHz and the reference frequency point of 3.45GHz as an example.
Specifically, the frequency conversion reference frequency is 2.3GHz, and the center frequency point of the wireless communication module is 3.5GHz, so that the center frequency point and the frequency conversion reference frequency are added to obtain the frequency conversion target frequency of 5.8GHz.
The frequency range of the frequency conversion output is added with the frequency conversion reference frequency and updated to be 5.6GHz-6.1GHz. The bandwidth remains unchanged. The center frequency point is added with the frequency conversion reference frequency to obtain the frequency conversion target frequency of 5.8GHz. The reference frequency point is updated to 5.75GHz.
Step S103: and calculating the frequency conversion frequency number according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset.
The number of the frequency to be converted is calculated according to the following formula:
,
wherein N represents the number of the frequency conversion,represents the frequency conversion reference frequency, k represents the frequency conversion coefficient,representing the frequency bin number reference offset.
The frequency conversion coefficient and the frequency conversion target frequency have the following mathematical relationship:
,
where k represents a frequency conversion coefficient, and f represents a frequency conversion target frequency.
Of course, it should be noted that, the mathematical relationship between the frequency conversion coefficient and the frequency conversion target frequency is only preferable, and in the specific implementation process, the method of defining the dependence relationship between the frequency conversion coefficient and the frequency conversion target frequency in the form of piecewise function according to different application scenarios should all belong to the protection scope of the present invention.
To facilitate the description of the calculation process of the frequency numbers of the frequency conversion, an example in step S102 is also taken as an example. In the above steps, the known frequency conversion reference frequency is 2.3GHz, the calculated frequency conversion target frequency is 5.8GHz, the frequency conversion coefficient is 20000Hz according to the corresponding relation between the frequency conversion coefficient and the frequency conversion target frequency, the frequency point number reference offset is a preset parameter, 785000 is taken as an example in the embodiment of the invention, and the frequency conversion frequency number= (2.3 x 10 x 9/20000) +785000=90000) can be calculated by substituting the formula
In specific implementation, after step S103 is performed, the method may further include the following steps:
when the interference intensity between the frequency conversion target frequency and the frequency band of the adjacent network is greater than a threshold value, or the frequency conversion target frequency is in a forbidden frequency band, deleting the idle frequency band where the frequency conversion target frequency is located, rescanning the idle frequency band, or rereading input to update the frequency conversion reference frequency.
In the embodiment of the invention, the threshold is not limited, and when the frequency conversion target frequency is judged to be strong in interference with the adjacent grid, or the calculated frequency conversion target frequency is in a preset forbidden frequency band, if the frequency conversion target frequency does not meet the frequency management requirement, the frequency conversion reference frequency is refreshed in a dynamic or manual input mode, so that a new frequency conversion target frequency is obtained, and the frequency adaptability after frequency conversion is ensured. Specifically, in the case of dynamic frequency sweep, if the judgment of this step is not satisfactory, the steps S1011 to S1013, S102, S103 are repeatedly performed by rescanning the idle frequency band. In the case of manual input, if it is judged that the requirement is not satisfied by this step, the steps of S101 to S103 are re-executed. Through the above loop iteration until reaching the requirement, the specific process is not repeated in the invention.
Step S104: and transmitting the calculated frequency conversion target frequency and frequency conversion frequency number to a frequency conversion module for controlling the frequency conversion module to convert the signal data and exchanging information with the wireless communication module.
In the specific implementation, according to the working range of the components of the frequency conversion module, the calculated frequency conversion target frequency and frequency conversion frequency number are used for generating the PAC packet, the PAC packet is sent to and written into the frequency conversion module, the frequency conversion module realizes the frequency conversion of signal data according to the obtained PAC packet, the frequency conversion module finishes the frequency conversion of data information, namely up-conversion and down-conversion, and thus the converted data can be subjected to information interaction with the wireless communication module.
The conversion parameters and the calculation parameters can be flexibly agreed by both communication parties according to the needs. The device can be arranged at the radio frequency end of the prior commercial chip or commercial communication equipment, and the interaction of control signaling with the chip or the communication equipment is not needed. In specific implementation, the frequency conversion parameters and calculation parameters such as the frequency conversion target frequency, the frequency conversion frequency number and the like can be prestored in the wireless communication module according to the convention of the communication mode, for example, the radio frequency section of the existing commercial chip and commercial communication equipment, so that the frequency conversion can be controlled in a preset mode to meet the requirements of special application scenes, and the frequency conversion parameters and calculation parameters such as the corresponding frequency conversion target frequency, the frequency conversion frequency number and the like are transmitted to the frequency conversion equipment in disorder through the chip or the communication equipment in a mode of control signaling.
It should be noted that, in the specific implementation, other frequency conversion parameters calculated in the above steps, including frequency conversion point parameters, frequency conversion gain, register parameters, etc. may be written into the frequency conversion module in a manner such as firmware or a manner of parameter configuration, which is not limited in the present invention.
As can be seen from the description of the above embodiments, the method for controlling frequency conversion according to the embodiments of the present invention obtains the frequency conversion reference frequency; calculating a frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point; calculating a frequency conversion frequency number according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset, wherein the frequency conversion coefficient is a coefficient determined according to the frequency conversion target frequency; and transmitting the calculated frequency conversion target frequency and frequency conversion frequency number to a frequency conversion module for controlling the frequency conversion module to convert the signal data and exchanging information with the communication module. The invention provides a new architecture algorithm, which can avoid redesigning the chip or re-streaming the chip, maximally reduce the cost and improve the application range of the chip. The center frequency and the bandwidth can be dynamically set according to the needs, so that terminals or chips only supporting commercial versions can be conveniently adapted to different private networks, the demands of private network users are met, the application range of commercial chips is expanded, and the development cost and the period of private network equipment are reduced.
From the above description of the method embodiments, it will be clear to those skilled in the art that the present invention may be implemented by means of software plus necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on this understanding, the technical solution of the present invention may be embodied essentially or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: read Only Memory (ROM), random Access Memory (RAM), magnetic or optical disks, and the like.
Embodiments of the present invention provide a non-volatile computer storage medium storing computer-executable instructions that can perform the multi-turn control method of any of the method embodiments described above.
Corresponding to the embodiment of the frequency conversion control method provided by the invention, the invention also provides a frequency conversion control device.
Referring to fig. 3, a schematic structural diagram of a frequency conversion control device according to an embodiment of the present invention is shown in fig. 3, where the device includes:
an acquisition module 11, configured to acquire a frequency conversion reference frequency;
a first calculating module 12, configured to calculate a frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point;
a second calculation module 13, configured to calculate a frequency number of the frequency to be converted according to the frequency reference frequency, the frequency coefficient, and the frequency point number reference offset, where the frequency coefficient is a coefficient determined according to a frequency target frequency of the frequency to be converted;
a control module 14 for transmitting the calculated frequency conversion target frequency and frequency conversion frequency number to a frequency conversion module for controlling the frequency conversion module to convert the data signal and to exchange information with the wireless communication module
In an exemplary embodiment, the obtaining module 11 is further configured to scan an idle frequency band; selecting a reference frequency point from the idle frequency band; and determining the frequency conversion reference frequency according to the difference between the reference frequency point and the central frequency point.
In an exemplary embodiment, the second calculating module 13 is further configured to delete an idle frequency band where the frequency conversion target frequency is located when the frequency band interference strength between the frequency conversion target frequency and the adjacent network is greater than a threshold value or the frequency conversion target frequency is in a forbidden frequency band, and send an instruction to the acquiring module to rescan the idle frequency band.
In an exemplary embodiment, the second calculating module 13 is further configured to calculate a frequency number of the frequency to be converted, according to the following formula:
,
wherein, N represents the frequency number of the frequency conversion, phi represents the frequency conversion reference frequency, k represents the frequency conversion coefficient, and delta represents the frequency point number reference offset.
The frequency conversion coefficient and the frequency conversion target frequency have the following mathematical relationship:
,
where k represents a frequency conversion coefficient, and f represents a frequency conversion target frequency.
Fig. 4 is a schematic structural diagram of a frequency conversion control system according to an embodiment of the present invention, as shown in fig. 4, where the system includes:
one or more processors 310 and a memory 320, one processor 310 being illustrated in fig. 4.
The apparatus for performing the frequency conversion control method may further include: a frequency conversion module 330, an input device 350 and an output device 340.
The processor 310, the memory 320, the input device 350, and the output device 340, and the frequency conversion module 330 may be connected by a bus or otherwise, for example, in fig. 4.
The memory 320 is a non-volatile computer readable storage medium, and may be used to store a non-volatile software program, a non-volatile computer executable program, and program instructions/modules (e.g., the acquisition module 11, the first calculation module 12, the second calculation module 13, and the control module 14 shown in fig. 3) corresponding to the battery state of health estimation method according to the embodiment of the present invention. The processor 310 executes various functional applications of the server and data processing, i.e., implements the above-described method embodiment of the frequency conversion control method, by running non-volatile software programs, instructions, and modules stored in the memory 320.
Memory 320 may include a storage program area that may store an operating system, at least one application program required for functionality, and a storage data area; the storage data area may store data created according to the use of the frequency conversion control device, and the like. In addition, memory 320 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 embodiments, memory 320 may optionally include memory located remotely from processor 310, which may be connected to the processing device for the frequency conversion control via 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 350 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the switching control device. The output device 340 may include a display device such as a display screen.
The one or more modules are stored in the memory 320 that, when executed by the one or more processors 310, perform the method of controlling a frequency conversion in any of the method embodiments described above.
In an exemplary embodiment, the frequency conversion module 330 may further include the following:
the frequency conversion 330 module performs frequency conversion, that is, up-conversion and down-conversion, of information data, referring to fig. 5, which is a schematic diagram of a frequency conversion module according to an embodiment of the present invention, and referring to fig. 6, which is a schematic diagram of another frequency conversion module according to an embodiment of the present invention.
Specifically, fig. 5 shows a Frequency conversion module structure of a TDD (Time-division Duplex) mode, and fig. 6 shows a Frequency conversion module structure of a FDD (Frequency-division Duplex) mode. The TDD mode of the conversion module includes an RF filter 501, a radio frequency switch 502, an lna (english: low Noise Amplifier, chinese: low noise Power Amplifier) 503, a down-conversion mixer 504, a down-sampling filter 505, a frequency sweep 506, and an up-sampling filter 507, an up-conversion mixer 508, a pa509 (english: power Amplifier, chinese: power Amplifier). Through the description of the above steps, PAC packets generated by the processor are read by the frequency conversion module, the frequency conversion parameters are written in, and the RF filter 501 reduces out-of-band interference and interference to other systems; the radio frequency switch 502 is used for switching between receiving and transmitting, the LNA503 is a low noise amplifier for amplifying a received signal, the down-conversion mixer 504 performs down-conversion of the signal, that is, the down-conversion mixer shifts from a high frequency band to a low frequency band, the down-sampling filter 505 filters a low frequency signal from the down-converted signal, and the low frequency signal enters the wireless communication module. The up-sampling filter 507 filters out a high frequency signal from the up-converted signal, and the up-conversion mixer 508 completes up-conversion of the signal, i.e. the up-conversion is shifted from a low frequency band to a high frequency band, and the high frequency signal enters the wireless communication module.
Fig. 6 shows a frequency conversion module in FDD mode, which can support configuration of uplink and downlink frequency points not identical, specifically includes a duplexer 601, an rf filter 602, an LNA603, a down-conversion mixer 604, a down-sampling filter 605, a frequency sweep 606, an up-sampling filter 607, an up-conversion mixer 608, and a PA609, and a detailed description of the function can be found in the description of the frequency conversion module in TDD mode, which is not repeated herein.
The system can execute the method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. Technical details not described in detail in this embodiment may be found in the methods provided in the embodiments of the present invention.
The electronic device of the embodiments of the present invention exists in a variety of forms including, but not limited to:
(1) A mobile communication device: such devices are characterized by mobile communication capabilities and are primarily aimed at providing voice, data communications. Such terminals include: smart phones (e.g., iPhone), multimedia phones, functional phones, and low-end phones, etc.
(2) Ultra mobile personal computer device: such devices are in the category of personal computers, having computing and processing functions, and generally also having mobile internet access characteristics. Such terminals include: PDA, MID, and UMPC devices, etc., such as iPad.
(3) Portable entertainment device: such devices may display and play multimedia content. The device comprises: audio, video players (e.g., iPod), palm game consoles, electronic books, and smart toys and portable car navigation devices.
(4) And (3) a server: the configuration of the server includes a processor, a hard disk, a memory, a system bus, and the like, and the server is similar to a general computer architecture, but is required to provide highly reliable services, and thus has high requirements in terms of processing capacity, stability, reliability, security, scalability, manageability, and the like.
(5) Other electronic devices with data interaction function.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, with reference to the description of method embodiments in part. The apparatus and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A method of controlling a frequency conversion, comprising:
acquiring a frequency conversion reference frequency;
calculating a frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point;
according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset, calculating a frequency conversion frequency number according to the following calculation formula:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein N represents a frequency number of the frequency conversion, < >>Represents the frequency conversion reference frequency, k represents the frequency conversion coefficient,>representing the frequency point number reference offset;
the frequency conversion coefficient is a coefficient determined according to a frequency conversion target frequency, and the frequency conversion coefficient and the frequency conversion target frequency have the following mathematical relationship:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein k represents a frequency conversion coefficient, and f represents a frequency conversion target frequency;
and transmitting the calculated frequency conversion target frequency and frequency conversion frequency number to a frequency conversion module for controlling the frequency conversion module to convert the signal data and exchanging information with the wireless communication module.
2. The method for controlling frequency conversion according to claim 1, wherein the obtaining the frequency conversion reference frequency comprises:
scanning an idle frequency band;
selecting a reference frequency point from the idle frequency band;
and determining the frequency conversion reference frequency according to the difference between the reference frequency point and the central frequency point.
3. The method for controlling frequency conversion according to claim 2, wherein before transmitting the calculated target frequency for frequency conversion and the frequency number for frequency conversion to the frequency conversion module, the method further comprises:
and deleting the idle frequency band where the frequency conversion target frequency is located when the frequency band interference intensity of the frequency conversion target frequency and the adjacent network is greater than a threshold value or the frequency conversion target frequency is in a forbidden frequency band, and rescanning the idle frequency band.
4. A switching control device, characterized by comprising:
the acquisition module is used for acquiring the frequency conversion reference frequency;
the first calculation module is used for calculating the frequency conversion target frequency according to the frequency conversion reference frequency and the center frequency point;
the second calculation module is configured to calculate a frequency number of the frequency conversion according to the frequency conversion reference frequency, the frequency conversion coefficient and the frequency point number reference offset, where the calculation formula is as follows:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein N isRepresenting the number of the frequency of the conversion, < >>Represents the frequency conversion reference frequency, k represents the frequency conversion coefficient,>representing the frequency point number reference offset;
the frequency conversion coefficient is a coefficient determined according to a frequency conversion target frequency, and the frequency conversion coefficient and the frequency conversion target frequency have the following mathematical relationship:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein k represents a frequency conversion coefficient, and f represents a frequency conversion target frequency;
the control module is used for sending the calculated frequency conversion target frequency and frequency conversion frequency number to the frequency conversion module and controlling the frequency conversion module to convert the data signal and interact information with the wireless communication module.
5. The apparatus of claim 4, wherein the acquisition module is further configured to,
scanning an idle frequency band;
selecting a reference frequency point from the idle frequency band;
and determining the frequency conversion reference frequency according to the difference between the reference frequency point and the central frequency point.
6. A conversion control system, comprising:
a memory and a processor, the memory storing a computer program, the processor implementing the steps of the method of controlling a frequency conversion as claimed in any one of claims 1 to 3 when the computer program is executed;
the frequency conversion module is used for converting the data signal according to the received frequency conversion target frequency and the frequency conversion frequency number and exchanging information with the wireless communication module.
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