Signal conversion device, method, terminal equipment and base station

Abstract

This application relates to the field of communication technology, providing a signal conversion device, method, terminal equipment, and base station. The device includes an antenna and a pseudo-signal generator connected to the antenna. The antenna is used to receive satellite signals from a first satellite system. The pseudo-signal generator receives the satellite signals transmitted by the antenna, processes the satellite signals, and generates a pseudo-signal, which is a pseudo-signal from a second satellite system. By using the above device to modify base station equipment, the base station equipment can be enabled to use signals from multiple satellite systems for time synchronization.

Description

Technical Field

[0001] The embodiments of the present application belong to the field of communication technology, and in particular, relate to a signal conversion device, method, terminal equipment and base station. Background Art

[0002] In order to ensure the normal operation of the communication network, time synchronization needs to be maintained between base station devices. At present, time synchronization between base station devices can be achieved by using GNSS (Global Navigation Satellite System) and / or PTP (Precision Time Protocol). Among them, GNSS uses the received satellite ephemeris signal to extract the clock for synchronization, including China's Beidou Satellite Navigation System BDS, the United States' Global Satellite Navigation System GPS, Russia's Glonass system, Europe's Galileo system, etc.; PTP synchronizes time through network master-slave synchronization, including 1588v2 clock, etc.

[0003] Generally, the accuracy of synchronization by positioning satellites can reach 20 nanoseconds (ns) and is not affected by the number of transmission hops between wireless devices. If PTP is used for synchronization, the message needs to be transmitted through the data network. After a certain number of hops, it is affected by uncontrollable factors such as network jitter and asymmetry, and the synchronization accuracy and stability are not as good as satellite synchronization. Generally speaking, each hop of transmission will increase the synchronization error by 20ns. In addition, synchronization by PTP cannot provide geographic location information. Therefore, most base station equipment deployed in the existing network uses positioning satellite synchronization as the main synchronization method, and PTP as the backup method.

[0004] At present, 5G base station equipment supports multiple types of GNSS synchronization methods and 1588v2 network synchronization methods. For example, it supports Beidou / GPS dual-mode GNSS synchronization methods and 1588v2 network synchronization methods. Among them, GNSS is the main synchronization method, and 1588v2 is the backup synchronization method. However, some equipment may only support one type of GNSS synchronization method due to reasons such as the early construction period. For example, 2G / 3G base station equipment and some 4G base station equipment only support GPS synchronization method, but not Beidou synchronization method. When the GPS service fails or is unavailable for some reason, a large number of network devices that are synchronized through GPS satellite timing will no longer be able to be used, which will cause a large number of network devices to be paralyzed.

[0005] In the prior art, the adaptation to Beidou or other satellite systems can be achieved by upgrading or replacing the equipment. In this process, the corresponding boards and GNSS antennas need to be replaced or added, which is very costly. Summary of the invention

[0006] In view of this, the embodiments of the present application provide a signal conversion device, method, terminal equipment and base station, which can solve the problem in the prior art that some base station equipment only supports the synchronization mode of a single satellite system, so that the base station equipment can adapt to other satellite systems.

[0007] A first aspect of an embodiment of the present application provides a signal conversion device, comprising an antenna and a pseudo signal generating device connected to the antenna; wherein:

[0008] The antenna is used to receive satellite signals of a first satellite system;

[0009] The pseudo signal generating device is used to receive the satellite signal transmitted by the antenna, and process the satellite signal to generate a pseudo signal, where the pseudo signal is a signal of a pseudo second satellite system.

[0010] A second aspect of an embodiment of the present application provides a base station, comprising the signal conversion device as described in the first aspect above and a base station device connected to the signal conversion device.

[0011] A third aspect of the embodiments of the present application provides a signal conversion method, including:

[0012] receiving a satellite signal of a first satellite system;

[0013] Processing the satellite signal to generate a pseudo signal, where the pseudo signal is a signal of a pseudo second satellite system;

[0014] The pseudo signal is transmitted to a base station device, and the base station device is used to perform time synchronization according to the pseudo signal.

[0015] A fourth aspect of the embodiments of the present application provides a signal conversion device, including:

[0016] A satellite signal receiving module, used for receiving a satellite signal of a first satellite system;

[0017] A pseudo signal generating module, used for processing the satellite signal to generate a pseudo signal, wherein the pseudo signal is a signal of a pseudo second satellite system;

[0018] The pseudo signal transmission module is used to transmit the pseudo signal to a base station device, and the base station device is used to perform time synchronization according to the pseudo signal.

[0019] The fifth aspect of an embodiment of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the signal conversion method described in the third aspect above when executing the computer program.

[0020] A sixth aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the signal conversion method as described in the third aspect above is implemented.

[0021] A seventh aspect of an embodiment of the present application provides a computer program product. When the computer program product is run on a terminal device, the terminal device executes the signal conversion method described in the third aspect above.

[0022] An eighth aspect of an embodiment of the present application provides a chip, comprising a memory and a processor, wherein the processor executes a computer program stored in the memory to implement the signal conversion method described in the third aspect above.

[0023] Compared with the prior art, the embodiments of the present application have the following advantages:

[0024] In the embodiment of the present application, by adding a signal conversion device, the signal of the first satellite system can be converted into a pseudo signal of the second satellite system, so that the device that only supports the use of the signal of the second satellite system for time synchronization can also support the signal of the first satellite system. Taking the first satellite system as the Beidou system and the second satellite system as the GPS system as an example, by using the signal conversion device to convert the Beidou signal into a pseudo GPS signal, the base station device that only supports the use of GPS signals can also use the Beidou signal for time synchronization without making any changes to the base station and the network, thereby minimizing the transformation and greatly reducing the cost required for base station transformation. In addition, due to the increasing scale of centralized deployment of base station equipment, if each device in the base station is separately installed with a GNSS receiving antenna according to the prior art, the space resources on the sky will seriously affect the number and location of the receiving antenna that can be installed, and the wiring rack and wall hole from the floor to the machine room cannot bear the increasing number of feeder layouts. In the embodiment of the present application, through centralized timing, a signal conversion device can be used to provide time reference for multiple base station devices at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of time synchronization of a base station device in the prior art;

[0027] Figure 2It is a schematic diagram of time synchronization of a base station device provided in an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of a signal conversion device provided in an embodiment of the present application;

[0029] Figure 4 is a schematic diagram of another signal conversion device provided in an embodiment of the present application;

[0030] Figure 5 It is a schematic diagram of multi-channel time reference benchmark information processing provided by an embodiment of the present application;

[0031] Figure 6 It is a schematic diagram of the steps of a signal conversion method provided in an embodiment of the present application;

[0032] Figure 7 is a schematic diagram of another signal conversion device provided in an embodiment of the present application;

[0033] Figure 8 It is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] In the following description, specific details such as specific system structures, technologies, etc. are proposed for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the present application.

[0035] like Figure 1 FIG. 1 is a schematic diagram of a base station device for time synchronization in the prior art. According to the existing time synchronization method, after receiving the GPS L1 C / A signal transmitted by the GPS satellite 102, the timing antenna 101 installed on the sky surface can transmit it to the base station device 104 through the feeder 103. The base station device 104 can receive the GPS L1 C / A signal through a GPS receiver (not shown in the figure), and after internal processing, output high-precision time reference information.

[0036] However, if the base station device 104 only supports time synchronization through the GPS satellite 102, then when the GPS satellite 102 fails to provide service due to a malfunction or other reasons, the base station device 104 cannot work normally.

[0037] In order to solve the above problems, the embodiments of the present application provide a signal conversion device, method, terminal equipment and base station. By using a pseudo signal generating device, the signals transmitted by other satellite systems can be converted into pseudo signals of the satellite system supported by the base station device, thereby improving the adaptability of the base station device to multiple satellite systems.

[0038] like Figure 2 FIG. 1 is a schematic diagram of a base station device performing time synchronization provided by an embodiment of the present application. Figure 2 In the embodiment, the timing antenna 201 installed on the sky surface can transmit the BDS B1I signal transmitted by the Beidou satellite 202 to the pseudo signal generating device 204 through the feeder 203. After the BDS B1I signal is processed by the pseudo signal generating device 204, the corresponding pseudo signal can be output and transmitted to the base station device 205. Figure 2 In the embodiment, if the base station device 205 is a device that only supports time synchronization through GPS satellites, then the pseudo signal generating device 204 can process the BDS B1I signal into a pseudo GPS signal, and then transmit the pseudo GPS signal to the base station device 205, so that the base station device 205 that only supports time synchronization through GPS satellites can also obtain high-precision time reference information that can meet the needs of mobile communication base station devices.

[0039] In the embodiment of the present application, in order to improve the system reliability, the antenna 201 connected to the pseudo signal generating device 204 may include multiple antennas. The pseudo signal generating device 204 can judge the multi-channel signals received by the multiple antennas, select the one channel signal with normal data or the highest accuracy for processing, and output the pseudo signal. The embodiment of the present application is not limited to this.

[0040] It should be noted that the above introduction that the base station device 205 only supports time synchronization through the GPS satellite is only an example. If the base station device 205 only supports time synchronization through the Beidou satellite, the technical solution provided in the embodiment of the present application can also be used to convert other satellite signals (such as GPS L1 C / A signals) received by the timing antenna 201 into pseudo-Beidou signals through the pseudo signal generating device 204, so that the base station device that only supports time synchronization through the Beidou satellite can also use signals transmitted by other types of satellite systems for time synchronization. The embodiment of the present application is not limited to this.

[0041] The technical solution of the embodiment of the present application is explained below through specific examples.

[0042] Reference Figure 3 , shows a schematic diagram of a signal conversion device provided in an embodiment of the present application, the device includes an antenna 301 and a pseudo signal generating device 302 connected to the antenna 301.

[0043] Among them, the antenna 301 can be used to receive satellite signals of the first satellite system; after receiving the satellite signals transmitted by the antenna 301, the pseudo signal generating device 302 can process the satellite signals to generate pseudo signals, which can be signals of the pseudo second satellite system.

[0044] Exemplarily, if the first satellite system is the Beidou satellite navigation system BDS, and the second satellite system is the global satellite navigation system GPS, the satellite signal of the first satellite system may be a BDS B1I signal, and the pseudo signal may be a pseudo GPS signal. Alternatively, if the first satellite system is a GPS system and the second satellite system is a Beidou system, the satellite signal of the first satellite system may be a GPS L1 C / A signal, and the pseudo signal may be a pseudo Beidou signal, which is not limited in the embodiments of the present application.

[0045] like Figure 3 As shown, the pseudo signal generating device 302 may include a first satellite system receiver 3021 and a pseudo second satellite system signal generator 3022 .

[0046] The first satellite system receiver 3021 may be used to receive the satellite signal of the first satellite system transmitted by the antenna 301, and output the time reference information according to the satellite signal. The pseudo second satellite system signal generator 3022 may be used to receive the time reference information output by the first satellite system receiver 3021, and generate a pseudo signal according to the time reference information.

[0047] Exemplarily, if the first satellite system is the Beidou system and the second satellite system is the GPS system, the first satellite system receiver 3021 is a Beidou satellite receiver, for example, a Beidou high-precision timing receiver. The pseudo second satellite system signal generator 3022 is a pseudo GPS signal generator.

[0048] In the embodiment of the present application, the Beidou high-precision timing receiver forms a high-precision time reference benchmark (relative to UTC (Coordinated Universal Time) time error is less than 30ns) by receiving the BDS B1I signal. The pseudo-GPS signal generator uses the time reference benchmark output by the Beidou high-precision timing receiver to output a pseudo-GPS signal, and ensures that the GPS signal receivers (from different manufacturers) in the existing mobile communication base station equipment can obtain a high-precision time reference (relative to UTC time error is less than 300ns) that meets the needs of the mobile communication base station equipment. According to the 3GPP (3rd Generation Partnership Project) protocol, the time accuracy requirement of the mobile communication base station equipment is usually only 1 microsecond (us), therefore, the above-mentioned pseudo-GPS signal generator can fully meet the accuracy requirements of the base station equipment for time synchronization.

[0049] In principle, the signal conversion device provided in the embodiment of the present application only needs to use one timing antenna ( Figure 3 The pseudo GPS signal generator directly uses the information to generate a simplified GPS L1 C / A signal (for example, only M GPS satellites are included to ensure that the subsequent GPS high-precision timing receiver can obtain a high-precision time reference that meets the needs of the mobile communication base station equipment, that is, a time reference with a relative UTC time error of less than 300ns).

[0050] However, since the pseudo second satellite system signal generator 3022 is connected in series, the reliability requirement for the pseudo signal generating device 302 is relatively high. Therefore, it is possible to consider configuring multiple antennas and multiple first satellite system receivers in the signal conversion device, and connecting each antenna to a first satellite system receiver to form a redundant design, so as to avoid the decrease of reliability index as much as possible.

[0051] like Figure 4 FIG. 2 is a schematic diagram of another signal conversion device provided by an embodiment of the present application, wherein the device includes two antennas 401A and 401B, wherein the antenna 401A is connected to the first satellite system receiver 4021A, and the antenna 401B is connected to the first satellite system receiver 4021B. The first satellite system receiver 4021A and the first satellite system receiver 4021B can output a channel of time reference information respectively. For example, Figure 4 Time reference 1 and time reference 2 are shown in FIG.

[0052] therefore, Figure 4 The pseudo second satellite system signal generator 4022 can determine a channel of target time reference information from multiple channels of time reference information (time reference 1 and time reference 2) output by multiple first satellite system receivers (4021A and 4021B), and generate a pseudo signal based on the channel of target time reference information.

[0053] For example, a number of Beidou high-precision timing receivers can be used to obtain two high-precision time reference benchmarks. The pseudo GPS signal generator can obtain a reliable high-precision time reference based on the rapid conversion of these high-precision time references and the comprehensive judgment of the local clock as the target time reference benchmark information for subsequent use.

[0054] In a possible implementation of the embodiment of the present application, the target time reference reference information can be selected by judging whether each channel of time reference reference information is normal. For example, if it is judged that a certain Beidou high-precision timing receiver is working abnormally, the information output by the Beidou high-precision timing receiver that is working normally can be used as the target time reference reference information; if both Beidou high-precision timing receivers are working normally, the information output by one of them can be selected as the target time reference reference information according to the priority of the receiver or in other ways (such as random selection); if both receivers are working abnormally, a fault prompt is given.

[0055] like Figure 5 FIG. 1 is a schematic diagram of a multi-channel time reference information processing method provided by an embodiment of the present application. For the multi-channel time reference information output by multiple receivers, the current time value and time accuracy can be determined from multiple time sources by multi-source fusion decision. Figure 5 , multiple time sources include upstream time sources such as time reference base 1 and time reference base 2, and local crystal oscillators, etc. Of course, other types of external time sources can be expanded according to actual needs, and the embodiments of the present application are not limited to this.

[0056] When making a multi-source fusion decision, a certain receiver (for example, receiver 1) can be used as the main output of a high-precision time reference (time reference base 1), and receiver 1 is used by default to tame the local crystal oscillator to obtain the target time reference base information. When it is determined that the output of receiver 1 is abnormal, the time reference (time reference base 1) output by receiver 2 is used. If both receivers are abnormal, the local crystal oscillator can be used to output the time reference.

[0057] Then, the pseudo GPS signal generator can use the target time reference information to generate a simplified GPS L1C / A signal.

[0058] In the embodiment of the present application, the pseudo signal generating device 402 can transmit the pseudo signal to the base station devices, and these base station devices can use the pseudo signal for time synchronization. If the pseudo signal generating device 402 needs to output multiple pseudo signals, a power division circuit is required.

[0059] like Figure 4 As shown, the pseudo signal generating device 402 further includes a power divider 4023 connected to the pseudo second satellite system signal generator 4022, and the power divider 4023 can be connected to multiple base station devices 403. The power divider 4023 can receive the pseudo signal output by the pseudo second satellite system signal generator 4022, divide the pseudo signal into multiple signals, and transmit the multiple signals to multiple base station devices 403.

[0060] In an embodiment of the present application, by adding a signal conversion device, the signal of the first satellite system can be converted into a pseudo signal of the second satellite system, so that the device that only supports the use of the second satellite system signal for time synchronization can also support the signal of the first satellite system. Taking the first satellite system as the Beidou system and the second satellite system as the GPS system as an example, by using a signal conversion device to convert the Beidou signal into a pseudo GPS signal, the base station device that only supports the use of GPS signals can also use the Beidou signal for time synchronization without making any changes to the base station and the network, thereby minimizing the transformation and greatly reducing the cost required for base station transformation. In addition, as the scale of centralized deployment of base station equipment becomes larger and larger, if the base station equipment is deployed in accordance with Figure 1 Each device is equipped with a separate GNSS receiving antenna. The space resources on the antenna surface will seriously affect the number and location of receiving antennas that can be installed. The wiring racks and wall holes from the floor to the equipment room cannot accommodate the increasing number of feeder cables. Figure 2 The centralized timing method shown supports the use of one signal conversion device to provide time reference for multiple base station devices at the same time, which is particularly important.

[0061] Reference Figure 6 , shows a schematic diagram of the steps of a signal conversion method provided by an embodiment of the present application, which may specifically include the following steps:

[0062] S601: Receive a satellite signal of a first satellite system.

[0063] It should be noted that the method can be applied to a terminal device, which may be the signal conversion device in the aforementioned embodiment, or other devices capable of implementing the various functions of the aforementioned signal conversion device, and the embodiments of the present application are not limited to this.

[0064] In the embodiment of the present application, the first satellite system may be a Beidou system. Therefore, the satellite signal of the first satellite system may be a BDS B1I signal transmitted by a Beidou satellite. The terminal device may receive the above BDS B1I signal through an antenna.

[0065] S602: Process the satellite signal to generate a pseudo signal, where the pseudo signal is a signal of a pseudo second satellite system.

[0066] In the embodiment of the present application, the second satellite system may be a GPS system. After the terminal device processes the satellite signal, a pseudo GPS signal may be generated.

[0067] In a specific implementation, the terminal device may include a Beidou satellite receiver and a pseudo GPS signal generator. After receiving the BDS B1I signal, the antenna of the terminal device can transmit it to the Beidou satellite receiver through a feeder, and the Beidou satellite receiver processes the BDS B1I signal to form high-precision time reference information. Then, the pseudo GPS signal generator can output a pseudo GPS signal based on the time reference information output by the Beidou satellite receiver.

[0068] In a possible implementation of the embodiment of the present application, the antenna and Beidou satellite receiver configured in the terminal device may include multiple, and each antenna is connected to a Beidou satellite receiver. Therefore, the terminal device can output multiple time reference benchmark information by multiple Beidou satellite receivers according to the satellite signals received by the multiple antennas. The GPS signal generator can determine the target time reference benchmark information from the multiple time reference benchmark information, and generate the above-mentioned pseudo signal according to the target time reference benchmark information.

[0069] Exemplarily, when the GPS signal generator determines the target time reference reference information from multiple time reference reference information, it can determine which time reference reference information output by the receiver is selected as the target time reference reference information based on the working status of each Beidou satellite receiver.

[0070] S603: Transmit the pseudo signal to a base station device, where the base station device is configured to perform time synchronization according to the pseudo signal.

[0071] The pseudo signal generated by the terminal device can be transmitted to the base station device through the feeder for time synchronization.

[0072] It should be noted that since the various processing steps of the terminal device in the method embodiment are similar to the processing process of the signal conversion device in the aforementioned embodiment, this embodiment introduces this in a relatively simple manner. For relevant details, please refer to the introduction in the aforementioned signal conversion device embodiment.

[0073] In an embodiment of the present application, after receiving a satellite signal of a first satellite system, a pseudo signal of a second satellite system is generated by processing the satellite signal, and the pseudo signal is transmitted to a base station device, so that the base station device can perform time synchronization according to the pseudo signal. In an embodiment of the present application, by converting the signal of the first satellite system into a pseudo signal of the second satellite system, a device that only supports time synchronization using the signal of the second satellite system can also support the signal of the first satellite system.

[0074] Reference Figure 7 , shows a schematic diagram of another signal conversion device provided in an embodiment of the present application, which may specifically include a satellite signal receiving module 701, a pseudo signal generating module 702, and a pseudo signal transmitting module 703, wherein:

[0075] A satellite signal receiving module, used for receiving a satellite signal of a first satellite system;

[0076] A pseudo signal generating module, used for processing the satellite signal to generate a pseudo signal, wherein the pseudo signal is a signal of a pseudo second satellite system;

[0077] The pseudo signal transmission module is used to transmit the pseudo signal to a base station device, and the base station device is used to perform time synchronization according to the pseudo signal.

[0078] In an embodiment of the present application, the pseudo signal generation module is specifically used to: output multiple time reference benchmark information according to the satellite signal; determine target time reference benchmark information from the multiple time reference benchmark information; and generate the pseudo signal according to the target time reference benchmark information.

[0079] Reference Figure 8 , shows a schematic diagram of a terminal device according to an embodiment of the present application. Figure 8 As shown, the terminal device 800 of this embodiment includes: a processor 810, a memory 820, and a computer program 821 stored in the memory 820 and executable on the processor 810. When the processor 810 executes the computer program 821, the steps in the above-mentioned signal conversion method embodiment are implemented, for example Figure 6 Alternatively, when the processor 810 executes the computer program 821, the functions of each module / unit in the above-mentioned device embodiments are realized, for example Figure 7 Functions of modules 701 to 703 are shown.

[0080] Exemplarily, the computer program 821 may be divided into one or more modules / units, which are stored in the memory 820 and executed by the processor 810 to complete the present application. The one or more modules / units may be a series of computer program instruction segments capable of completing specific functions, which may be used to describe the execution process of the computer program 821 in the terminal device 800. For example, the computer program 821 may be divided into a satellite signal receiving module, a pseudo signal generating module, and a pseudo signal transmitting module, and the specific functions of each module are as follows:

[0081] A satellite signal receiving module, used for receiving a satellite signal of a first satellite system;

[0082] a pseudo signal generating module, used for processing the satellite signal to generate a pseudo signal, wherein the pseudo signal is a signal of a pseudo second satellite system;

[0083] The pseudo signal transmission module is used to transmit the pseudo signal to a base station device, and the base station device is used to perform time synchronization according to the pseudo signal.

[0084] The terminal device 800 may include, but is not limited to, a processor 810 and a memory 820. Those skilled in the art will appreciate that Figure 8 It is only an example of the terminal device 800 and does not constitute a limitation of the terminal device 800. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal device 800 may also include input and output devices, network access devices, buses, etc.

[0085] The processor 810 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0086] The memory 820 may be an internal storage unit of the terminal device 800, such as a hard disk or memory of the terminal device 800. The memory 820 may also be an external storage device of the terminal device 800, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the terminal device 800. Further, the memory 820 may also include both an internal storage unit of the terminal device 800 and an external storage device. The memory 820 is used to store the computer program 821 and other programs and data required by the terminal device 800. The memory 820 may also be used to temporarily store data that has been output or is to be output.

[0087] An embodiment of the present application also discloses a base station, comprising the signal conversion device described in the foregoing embodiment and a base station device connected to the signal conversion device.

[0088] An embodiment of the present application also discloses a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the signal conversion method as described in the aforementioned method embodiment when executing the computer program.

[0089] The embodiment of the present application further discloses a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the signal conversion method as described in the aforementioned method embodiment is implemented.

[0090] The embodiment of the present application further discloses a computer program product. When the computer program product is run on a terminal device, the terminal device executes the signal conversion method described in the above-mentioned embodiments.

[0091] An embodiment of the present application further discloses a chip, which includes a memory and a processor, and the processor executes a computer program stored in the memory to implement the signal conversion method as described in the above embodiments.

[0092] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application is described in detail with reference to the above-mentioned embodiments, a person skilled in the art should understand that the technical solutions described in the above-mentioned embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A signal conversion device, characterized in that: It includes an antenna and a pseudo signal generating device connected to the antenna; wherein: The antenna is used to receive satellite signals of a first satellite system; The pseudo signal generating device is used to receive the satellite signal transmitted by the antenna, process the satellite signal, generate a pseudo signal, and transmit the pseudo signal to the base station device; the pseudo signal is a signal of a pseudo second satellite system; the base station device is a device that only supports the signal of the second satellite system for time synchronization; The base station device is used for performing time synchronization according to the pseudo signal.

2. The device according to claim 1, characterized in that The pseudo signal generating device comprises a first satellite system receiver and a pseudo second satellite system signal generator; wherein: The first satellite system receiver is used to receive the satellite signal transmitted by the antenna and output time reference benchmark information according to the satellite signal; The pseudo second satellite system signal generator is used to receive the time reference benchmark information output by the first satellite system receiver, and generate the pseudo signal according to the time reference benchmark information.

3. The device according to claim 2, characterized in that The antenna includes a plurality of antennas, the first satellite system receiver includes a plurality of antennas, and each antenna is connected to one of the first satellite system receivers; wherein: The pseudo second satellite system signal generator is used to determine target time reference benchmark information from multiple time reference benchmark information output by multiple first satellite system receivers, and generate the pseudo signal according to the target time reference benchmark information.

4. The device according to claim 2, characterized in that The pseudo signal generating device further comprises a power divider connected to the pseudo second satellite system signal generator, and the power divider is connected to a plurality of base station devices; The power divider is used to receive the pseudo signal output by the pseudo second satellite system signal generator, divide the pseudo signal into multiple signals, and transmit the multiple signals to the multiple base station devices.

5. The device according to any one of claims 1 to 4, characterized in that: The first satellite system is the Beidou Satellite Navigation System BDS, the second satellite system is the Global Navigation Satellite System GPS, and the pseudo signal is a pseudo GPS signal.

6. A base station, characterized in that: It comprises a signal conversion device as described in any one of claims 1 to 5 and a base station device connected to the signal conversion device.

7. A signal conversion method, characterized in that: include: receiving a satellite signal of a first satellite system; Processing the satellite signal to generate a pseudo signal, where the pseudo signal is a signal of a pseudo second satellite system; The pseudo signal is transmitted to a base station device, where the base station device is a device that only supports the signal of the second satellite system for time synchronization, and the base station device is used to perform time synchronization according to the pseudo signal.

8. The method according to claim 7, characterized in that The step of processing the satellite signal to generate a pseudo signal comprises: Outputting multiple time reference information according to the satellite signal; Determine target time reference information from the multiple time reference information; The pseudo signal is generated according to the target time reference benchmark information.

9. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the signal conversion method according to claim 7 or 8 is implemented.

10. A chip, characterized in that: The chip includes a memory and a processor, and the processor executes a computer program stored in the memory to implement the signal conversion method as claimed in claim 7 or 8.

Images