Wireless signal receiving device and system
By designing a wireless signal receiving device for multi-antenna reception and signal processing, the problem of GPS signals being easily disturbed during reception is solved, and the positioning accuracy and system stability of GPS are improved.
Patent Information
- Application Number
- CN202210971833.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-10-14
- Filing Date
- 2022-08-12
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2042-08-12
AI Technical Summary
When the existing wireless signal receiving device receives GPS and wireless wide area network signals, the GPS signal is easily disturbed, resulting in a decrease in reception quality, and the newly added L5 frequency band improves positioning accuracy and error requirements.
A wireless signal receiving device is designed to receive wireless signals in different frequency bands through multiple antennas, adopt processing technologies such as signal separation and signal amplification, and select and switch the wireless signal to be output through the signal switching device, and finally feed the processed signal into the corresponding wireless network module.
It reduces the interference of GPS signals by wireless wide area network signals, improves the positioning accuracy of GPS and reduces positioning errors, and provides output selection of multiple wireless network modules when the wireless signal is unstable, increasing the stability of the system.
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Figure CN115987305B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of communication technology, and in particular to a wireless signal receiving device and system. Background Art
[0002] Current wireless wide area network (WWAN) module manufacturers integrate and receive global positioning system (GPS) wireless signals together with wireless wide area network wireless signals in consideration of space during circuit design.
[0003] However, if the GPS wireless signal is received together with the wireless wide area network wireless signal, the GPS wireless signal will be interfered, resulting in a decrease in the reception quality of the GPS wireless signal.
[0004] In addition, in the current application of GPS in the industry, in addition to the original L1 band wireless signal, the L5 band wireless signal has also been added. Due to the addition of the L5 band wireless signal, the requirements for GPS positioning error and positioning accuracy have also increased accordingly. Summary of the invention
[0005] The present application provides a wireless signal receiving device and system, which can receive multiple wireless signals including different frequency bands through multiple antennas, and then process the multiple wireless signals including different frequency bands through signal processing such as signal separation and signal amplification, and then select and switch the wireless signals to be output through a signal switching device, and then select the wireless network module to be fed into by the wireless signal through a module switching device, and merge the wireless signals according to the module requirements, or directly feed the wireless signals into the selected wireless network module.
[0006] In order to achieve the above objectives, this application adopts the following technical solutions:
[0007] In a first aspect, the present application provides a wireless signal receiving device, including: a first antenna, a second antenna, a third antenna, a first signal separation device, a first signal switching device, a second signal switching device, a first module switching device, a second module switching device, and a first signal merging device;
[0008] A first antenna, used for receiving a first wireless signal in the L1 frequency band of a global positioning system;
[0009] A second antenna, used for receiving a second wireless signal of the global positioning system L5 frequency band;
[0010] a third antenna for receiving external antenna wireless signals including GPS L1 band and GPS L5 band;
[0011] A first signal separation device, connected to the third antenna, for separating the external antenna wireless signal into a third wireless signal of the GPS L1 frequency band and a fourth wireless signal of the GPS L5 frequency band;
[0012] A first signal switching device, coupled to the first antenna and connected to the first signal separation device, for switching and outputting the first wireless signal and the third wireless signal respectively;
[0013] A second signal switching device, coupled to the second antenna and connected to the first signal separation device, for switching and outputting the second wireless signal and the fourth wireless signal respectively;
[0014] A first module switching device, connected to the first signal switching device, for switching an output path of the first wireless signal or the third wireless signal;
[0015] A second module switching device, connected to the second signal switching device, for switching an output path of the second wireless signal or the fourth wireless signal;
[0016] The first signal merging device is connected to the first module switching device and the second module switching device, and is used to merge the wireless signals received from the first module switching device and the second module switching device into a fifth wireless signal.
[0017] Optionally, in a possible design, the wireless signal receiving device further includes: a fourth antenna, a first duplexer, and a second signal combining device;
[0018] a fourth antenna, configured to receive a sixth wireless signal including a wireless wide area network frequency band;
[0019] A first duplexer, connected to the fourth antenna, for receiving a sixth wireless signal;
[0020] The second signal merging device is connected to the first duplexer and the first module switching device, and is used for merging the wireless signals received from the first module switching device and the first duplexer into a seventh wireless signal.
[0021] Optionally, in another possible design, the wireless signal receiving device further includes: a first low noise amplifier and a second low noise amplifier;
[0022] A first low noise amplifier is coupled to the first antenna and connected to the first signal switching device, and is used to receive a first wireless signal;
[0023] The second low noise amplifier is coupled to the second antenna and connected to the second signal switching device for receiving a second wireless signal.
[0024] Optionally, in another possible design, the wireless signal receiving device further includes: a first duplexer and an extractor;
[0025] A first duplexer, connected to the first antenna, for receiving a wireless signal from the first antenna;
[0026] an extractor, connected to the first duplexer and coupled to the first signal switching device, for receiving a wireless signal from the first duplexer;
[0027] The first antenna is further used to receive a sixth wireless signal including a wireless wide area network frequency band.
[0028] Optionally, in another possible design, the wireless signal receiving device further includes: a second duplexer and a third duplexer;
[0029] A second duplexer is connected to the second antenna and is used to receive a wireless signal from the second antenna;
[0030] A third duplexer connected to the second duplexer and the second module switching device, and configured to receive wireless signals from the second module switching device and the second duplexer;
[0031] The second antenna is also used to receive a multiple-input multiple-output system MIMO wireless signal including a wireless wide area network frequency band.
[0032] Optionally, in another possible design, the first signal separation device is a triplexer.
[0033] Optionally, in another possible design, the first signal combining device is a triplexer.
[0034] Optionally, in another possible design, the second signal merging device includes a duplexer and an extractor.
[0035] Optionally, in another possible design, the frequency band of the first wireless signal includes the 617 MHz to 5950 MHz frequency band of the wireless wide area network, and the frequency band of the second wireless signal includes the 617 MHz to 5000 MHz frequency band of the wireless wide area network.
[0036] In a second aspect, the present application provides a wireless signal receiving system, including: a wireless signal receiving device, a single-feed global positioning system module and a dual-feed wireless wide area network module; the wireless signal receiving device includes: a first antenna, a second antenna, a third antenna, a first signal separation device, a first signal switching device, a second signal switching device, a first module switching device, a second module switching device, and a first signal merging device;
[0037] A first antenna, used for receiving a first wireless signal in the L1 frequency band of a global positioning system;
[0038] A second antenna, used for receiving a second wireless signal of the global positioning system L5 frequency band;
[0039] a third antenna for receiving external antenna wireless signals including GPS L1 band and GPS L5 band;
[0040] A first signal separation device, connected to the third antenna, for separating the external antenna wireless signal into a third wireless signal of the GPS L1 frequency band and a fourth wireless signal of the GPS L5 frequency band;
[0041] A first signal switching device, coupled to the first antenna and connected to the first signal separation device, for switching and outputting the first wireless signal and the third wireless signal respectively;
[0042] A second signal switching device, coupled to the second antenna and connected to the first signal separation device, for switching and outputting the second wireless signal and the fourth wireless signal respectively;
[0043] A first module switching device, connected to the first signal switching device, for switching an output path of the first wireless signal or the third wireless signal;
[0044] A second module switching device, connected to the second signal switching device, for switching an output path of the second wireless signal or the fourth wireless signal;
[0045] A first signal merging device, connected to the first module switching device and the second module switching device, for merging the wireless signals received from the first module switching device and the second module switching device into a fifth wireless signal;
[0046] a single-feed global positioning system module connected to the first signal combining device and configured to receive a fifth wireless signal;
[0047] The dual-feed wireless wide area network module is coupled to the first module switch device and the second module switch device, and is used for receiving wireless signals from the first module switch device and the second module switch device.
[0048] Optionally, in a possible design, the wireless signal receiving device further includes: a fourth antenna, a first duplexer, and a second signal combining device;
[0049] a fourth antenna, configured to receive a sixth wireless signal including a wireless wide area network frequency band;
[0050] A first duplexer, connected to the fourth antenna, for receiving a sixth wireless signal;
[0051] a second signal combining device, connected to the first duplexer and the first module switching device, and configured to combine the wireless signals received from the first module switching device and the first duplexer into a seventh wireless signal;
[0052] The dual-feed wireless wide area network module is also used to receive a seventh wireless signal.
[0053] Optionally, in another possible design, the wireless signal receiving device further includes: a first low noise amplifier and a second low noise amplifier;
[0054] A first low noise amplifier is coupled to the first antenna and connected to the first signal switching device, and is used to receive a first wireless signal;
[0055] The second low noise amplifier is coupled to the second antenna and connected to the second signal switching device for receiving a second wireless signal.
[0056] Optionally, in another possible design, the wireless signal receiving device further includes: a first duplexer and an extractor;
[0057] A first duplexer, connected to the first antenna, for receiving a wireless signal from the first antenna;
[0058] an extractor, connected to the first duplexer and coupled to the first signal switching device, for receiving a wireless signal from the first duplexer;
[0059] The first antenna is further used to receive a sixth wireless signal including a wireless wide area network frequency band.
[0060] Optionally, in another possible design, the wireless signal receiving device further includes: a second duplexer and a third duplexer;
[0061] A second duplexer is connected to the second antenna and is used to receive a wireless signal from the second antenna;
[0062] A third duplexer connected to the second duplexer and the second module switching device, and configured to receive wireless signals from the second module switching device and the second duplexer;
[0063] The second antenna is also used to receive a multiple-input multiple-output system MIMO wireless signal including a wireless wide area network frequency band;
[0064] The dual-feed wireless wide area network module is also used to receive the wireless signal from the third duplexer.
[0065] Optionally, in another possible design, the first signal separation device is a triplexer.
[0066] Optionally, in another possible design, the first signal combining device is a triplexer.
[0067] Optionally, in another possible design, the second signal merging device includes a duplexer and an extractor.
[0068] Optionally, in another possible design, the frequency band of the first wireless signal includes the 617 MHz to 5950 MHz frequency band of the wireless wide area network, and the frequency band of the second wireless signal includes the 617 MHz to 5000 MHz frequency band of the wireless wide area network.
[0069] In the technical solution provided by the present application, multiple wireless signals including different frequency bands (such as L1 frequency band and L5 frequency band, etc.) can be received through multiple antennas, and then the multiple wireless signals including different frequency bands are subjected to signal processing such as signal separation and signal amplification, and then the wireless signals to be output are selected and switched by the signal switching device, and then the wireless signal is selected to be fed into the wireless network module by the module switching device, and the wireless signals are merged according to the module requirements, or the wireless signals are directly fed into the selected wireless network module. Through the wireless signal receiving device provided by the present application, while reducing the interference of the GPS wireless signal with the wireless signal of the wireless wide area network frequency band, the reception of the wireless signal of the L5 frequency band of the global positioning system is increased, thereby improving the positioning accuracy of the global positioning system and reducing the positioning error. In addition, the present application selects the wireless network module to be fed into by the module switching device, so that when the wireless signal is unstable, it can provide users with multiple wireless network module output options to increase the stability of the system.
[0070] In this application, the names of the above-mentioned devices or modules are not limited. In actual implementation, these devices or modules may appear with other names. As long as the functions of each device or module are similar to those of this application, they are within the scope of the claims of this application and their equivalent technologies.
[0071] These and other aspects of the present application will become more apparent from the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0072] Figure 1 A schematic diagram of the structure of a wireless signal receiving system provided in an embodiment of the present application;
[0073] Figure 2 A schematic diagram of the structure of another wireless signal receiving system provided in an embodiment of the present application;
[0074] Figure 3 A schematic diagram of the structure of another wireless signal receiving system provided in an embodiment of the present application. DETAILED DESCRIPTION
[0075] The wireless signal receiving device and system provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0076] The terms "first" and "second" and the like in the specification and drawings of this application are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of objects.
[0077] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.
[0078] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
[0079] In the description of the present application, unless otherwise specified, “plurality” means two or more.
[0080] In addition, the acquisition, storage, use, and processing of data in the technical solution of this application comply with the relevant provisions of national laws and regulations.
[0081] Reference Figure 1 , is a schematic diagram of the structure of a wireless signal receiving system provided in an embodiment of the present application. Figure 1 As shown, the wireless signal receiving system may include a wireless signal receiving device, a single-feed global positioning system module GPSM1, and a dual-feed wireless wide area network module WWANM. The wireless signal receiving device includes a first antenna Ant.1, a second antenna Ant.2, a third antenna Ant.3, a first signal separation device SS1, a first signal switching device SSW1, a second signal switching device SSW2, a first module switching device MSW1, a second module switching device MSW2, and a first signal merging device SC1.
[0082] Among them, the first antenna Ant.1 is connected to the first signal switching device SSW1, the second antenna Ant.2 is connected to the second signal switching device SSW2, the first signal separation device SS1 is connected to the third antenna Ant.3, the first signal switching device SSW1 and the second signal switching device SSW2, the first module switching device MSW1 is connected to the first signal merging device SC1, the first signal switching device SSW1 and the dual-feed wireless wide area network module WWANM, the second module switching device MSW2 is connected to the first signal merging device SC1, the second signal switching device SSW2 and the dual-feed wireless wide area network module WWANM, and the first signal merging device SC1 is connected to the single-feed global positioning system module GPSM1.
[0083] like Figure 1As shown, the wireless signal receiving system provided in the embodiment of the present application can receive a first wireless signal in the global positioning system L1 frequency band (or a frequency band including 617MHz to 5950MHz of the wireless wide area network, which includes 617MHz and 5950MHz) through the first antenna Ant.1, and can also receive a second wireless signal in the global positioning system L5 frequency band (or a frequency band including 617MHz to 5000MHz of the wireless wide area network, which includes 617MHz and 5000MHz) through the second antenna Ant.2; and, can also receive an external antenna wireless signal including the global positioning system L1 frequency band and the global positioning system L5 frequency band through the third antenna Ant.3. Afterwards, the first signal separation device SS1 can separate the external antenna wireless signal received by the third antenna Ant.3 into a third wireless signal of the global positioning system L1 frequency band and a fourth wireless signal of the global positioning system L5 frequency band, and the first signal switching device SSW1 can switch and output the first wireless signal and the third wireless signal of the global positioning system L1 frequency band (or the frequency band including 617MHz to 5950MHz of the wireless wide area network, which includes 617MHz and 5950MHz) to the first module switching device MSW1 respectively, and the second signal switching device SSW2 can also switch and output the global positioning system L5 frequency band (or the frequency band including 617MHz to 5000MHz of the wireless wide area network) respectively. The frequency band may include 617MHz and 5000MHz) and the second wireless signal and the fourth wireless signal are switched to the second module switching device MSW2; then, the first module switching device MSW1 can switch the output path of the first wireless signal or the third wireless signal of the global positioning system L1 frequency band (or the frequency band including the wireless wide area network 617MHz to 5950MHz, which frequency band includes 617MHz and 5950MHz), and the second module switching device MSW2 can switch the output path of the second wireless signal or the fourth wireless signal of the global positioning system L5 frequency band (or the frequency band including the wireless wide area network 617MHz to 5000MHz, which frequency band may include 617MHz and 5000MHz).When the dual-feed wireless wide area network module WWANM output is selected, the first module switching device MSW1 and the second module switching device MSW2 will directly feed the wireless signal into the dual-feed wireless wide area network module WWANM, and when the single-feed global positioning system module GPSM1 output is selected, the first module switching device MSW1 and the second module switching device MSW2 will output the wireless signal to the first signal merging device SC1, and the first signal merging device SC1 will merge the wireless signals received from the first module switching device MSW1 and the second module switching device MSW2 into a fifth wireless signal, and feed the fifth wireless signal including the global positioning system L1 frequency band (or the wireless wide area network frequency band of 617MHz to 5950MHz, which includes 617MHz and 5950MHz) and the global positioning system L5 frequency band (or the wireless wide area network frequency band of 617MHz to 5000MHz, which includes 617MHz and 5000MHz) into the single-feed global positioning system module GPSM1.
[0084] In an embodiment of the present application, the first antenna Ant.1 serves as an internal antenna and can be connected to the first signal switching device SSW1 to receive a first wireless signal in a single-band global positioning system L1 frequency band (or a frequency band including a wireless wide area network of 617MHz to 5950MHz, which includes 617MHz and 5950MHz), and transmit the first wireless signal in a single-band global positioning system L1 frequency band to the first signal switching device SSW1.
[0085] The second antenna Ant.2, as an internal antenna, can be connected to the second signal switching device SSW2 to receive a second wireless signal of a single-band global positioning system L5 frequency band (or a frequency band including a wireless wide area network of 617MHz to 5000MHz, which may include 617MHz and 5000MHz) and transmit the second wireless signal of a single-band global positioning system L5 frequency band to the second signal switching device SSW2.
[0086] The third antenna Ant.3, as an external antenna, can be connected to the first signal separation device SS1, and is used to receive external antenna wireless signals including the global positioning system L1 frequency band and the global positioning system L5 frequency band, and transmit the external antenna wireless signals including the global positioning system L1 frequency band and the L5 frequency band to the first signal separation device SS1.
[0087] The first signal separation device SS1 can be connected to the third antenna, the first signal switching device SSW1 and the second signal switching device SSW2, and is used to separate the external antenna wireless signal including the global positioning system L1 frequency band and the L5 frequency band into a third wireless signal of the global positioning system L1 frequency band and a fourth wireless signal of the global positioning system L5 frequency band, and transmit the third wireless signal of the global positioning system L1 frequency band and the fourth wireless signal of the global positioning system L5 frequency band to the first signal switching device SSW1 and the second signal switching device SSW2 respectively.
[0088] Optionally, in a possible implementation, the first signal separation device SS1 can be a triplexer, but the embodiment of the present application is not limited to this. Any device that can separate the external antenna wireless signal including the global positioning system L1 frequency band and the L5 frequency band into the global positioning system L1 frequency band and the global positioning system L5 frequency band wireless signal can be used as the first signal separation device SS1 in the wireless signal receiving system provided in the embodiment of the present application.
[0089] The first signal switching device SSW1 can be connected to the first antenna Ant.1, the first signal separation device SS1 and the first module switching device MSW1, and is used to switch and output the first wireless signal of the GPS L1 frequency band (or the frequency band of the wireless wide area network 617MHz to 5950MHz, which includes 617MHz and 5950MHz) and the third wireless signal of the GPS L1 frequency band. Exemplarily, the first signal switching device SSW1 can receive the first wireless signal of the GPS L1 frequency band from the first antenna Ant.1 and the third wireless signal of the GPS L1 frequency band from the first signal separation device SS1, and choose to switch and output the first wireless signal of the GPS L1 frequency band to the first module switching device MSW1, or choose to switch and output the third wireless signal of the GPS L1 frequency band to the first module switching device MSW1, that is, at the same time point, the first signal switching device SSW1 will only output one wireless signal (the first wireless signal or the third wireless signal) to the first module switching device MSW1. The selection and switching of the first signal switching device SSW1 may be manually switched by the user, or the wireless signal to be output may be switched by software, hardware or firmware, which is not limited in the embodiment of the present application.
[0090] The second signal switching device SSW2 can be connected to the second antenna Ant.2, the first signal separation device SS1 and the second module switching device MSW2, and is used to switch and output the second wireless signal of the GPS L5 frequency band (or the frequency band of the wireless wide area network 617MHz to 5000MHz, which includes 617MHz and 5000MHz) and the fourth wireless signal of the GPS L5 frequency band. Exemplarily, the second signal switching device SSW2 can receive the second wireless signal of the GPS L5 frequency band from the second antenna Ant.2 and the fourth wireless signal of the GPS L5 frequency band from the first signal separation device SS1, and choose to switch and output the second wireless signal of the GPS L5 frequency band to the second module switching device MSW2, or choose to switch and output the fourth wireless signal of the GPS L5 frequency band to the second module switching device MSW2, that is, at the same time point, the second signal switching device SSW2 will only output one wireless signal (the second wireless signal or the fourth wireless signal) to the second module switching device MSW2. The selective switching of the second module switching device MSW2 can be manually switched by the user, or the wireless signal to be output can be switched by software, hardware or firmware, which is not limited in the embodiment of the present application.
[0091] The first module switching device MSW1 can be connected to the first signal switching device SSW1, the first signal merging device SC1 and the dual-feed wireless wide area network module WWANM, and is used to switch the output path of the first wireless signal or the third wireless signal. Exemplarily, the first module switching device MSW1 can receive the first wireless signal or the third wireless signal of the global positioning system L1 frequency band (or the frequency band including the wireless wide area network 617MHz to 5950MHz, which includes 617MHz and 5950MHz) from the first signal switching device SSW1, and select to switch and output the first wireless signal or the third wireless signal of the global positioning system L1 frequency band to the first signal merging device SC1, or select to switch and output the first wireless signal or the third wireless signal of the global positioning system L1 frequency band to the dual-feed wireless wide area network module WWANM. The selective switching of the first module switching device MSW1 can be manually switched by the user, or the wireless network module to be output can be switched by software, hardware or firmware, and the embodiment of the present application does not limit this.
[0092] The second module switching device MSW2 can be connected to the second signal switching device SSW2, the first signal merging device SC1 and the dual-feed wireless wide area network module WWANM, and is used to switch the output path of the second wireless signal or the fourth wireless signal. Exemplarily, the second module switching device MSW2 can receive the second wireless signal or the fourth wireless signal of the global positioning system L5 frequency band (or the frequency band including the wireless wide area network 617MHz to 5000MHz, which includes 617MHz and 5000MHz) from the second signal switching device SSW2, and select to switch and output the second wireless signal or the fourth wireless signal of the global positioning system L5 frequency band to the first signal merging device SC1, or select to switch and output the second wireless signal or the fourth wireless signal of the global positioning system L5 frequency band to the dual-feed wireless wide area network module WWANM. The selective switching of the second module switching device MSW2 can be manually switched by the user, or the wireless network module to be output can be switched by software, hardware or firmware, and the embodiment of the present application does not limit this.
[0093] The first signal merging device SC1 can be connected to the single-feed global positioning system module GPSM1, the first module switching device MSW1 and the second module switching device MSW2, and is used to merge the wireless signals received from the first module switching device MSW1 and the second module switching device MSW2 into a fifth wireless signal. Exemplarily, the first signal merging device SC1 can receive a first wireless signal or a third wireless signal in the global positioning system L1 frequency band (or a frequency band including a wireless wide area network of 617MHz to 5950MHz, which includes 617MHz and 5950MHz) from the first module switching device MSW1, and a second wireless signal or a fourth wireless signal in the global positioning system L5 frequency band (or a frequency band including a wireless wide area network of 617MHz to 5000MHz, which includes 617MHz and 5000MHz) from the second module switching device MSW2, and then merge the wireless signals received from the first module switching device MSW1 and the second module switching device MSW2 into a fifth wireless signal including the global positioning system L1 frequency band and the global positioning system L5 frequency band, and then output the fifth wireless signal including the global positioning system L1 frequency band and the global positioning system L5 frequency band to the single-feed global positioning system module GPSM1.
[0094] Optionally, in a possible implementation, the first signal merging device SC1 may be a triplexer, but the present application embodiment does not limit this. Any device that can merge the wireless signals received from the first module switching device MSW1 and the second module switching device MSW2 into wireless signals including the global positioning system L1 frequency band (or the wireless wide area network 617MHz to 5950MHz frequency band, which includes 617MHz and 5950MHz) and the global positioning system L5 frequency band (or the wireless wide area network 617MHz to 5000MHz frequency band, which includes 617MHz and 5000MHz) can be used as the first signal merging device SC1 in the wireless signal receiving system provided in the present application embodiment. Among them, the single-feed global positioning system module GPSM1 can also be a wireless wide area network module, which is not limited in the present application embodiment.
[0095] The single-feed global positioning system module GPSM1 can be connected to the first signal merging device SC1, and is used to receive a fifth wireless signal including the global positioning system L1 frequency band (or the wireless wide area network 617MHz to 5950MHz frequency band, which includes 617MHz and 5950MHz) and the global positioning system L5 frequency band (or the wireless wide area network 617MHz to 5000MHz frequency band, which includes 617MHz and 5000MHz) from the first signal merging device SC1, and use the fifth wireless signal as a wireless network signal source within the network coverage of the single-feed global positioning system module GPSM1 to provide users with the use of a wireless network. The single-feed global positioning system module GPSM1 is a single-feed global positioning system module, that is, the single-feed global positioning system module GPSM1 has only one wireless signal input port. The wireless signal receiving system provided in the embodiment of the present application can merge multiple wireless signals into a single input source (the fifth wireless signal) through the first signal merging device SC1, and feed the single-feed global positioning system module GPSM1 as a wireless network signal input source.
[0096] The dual-feed wireless wide area network module WWANM can be connected to the first module switching device MSW1 and the second module switching device MSW2, and is used to receive the wireless signals of the first module switching device MSW1 and the second module switching device MSW2, and use the wireless signals of the first module switching device MSW1 and the second module switching device MSW2 as the wireless network signal source within the network coverage of the dual-feed wireless wide area network module WWANM to provide users with the use of a wireless network. Among them, the dual-feed wireless wide area network module WWANM has two wireless signal input ports, and the wireless signal receiving system provided in the embodiment of the present application can directly feed the wireless signals (first wireless signal, second wireless signal, third wireless signal and fourth wireless signal) of the first module switching device MSW1 and the second module switching device MSW2 into the dual-feed wireless wide area network module WWANM for use as a wireless network signal input source.
[0097] Reference Figure 2 , which is a structural diagram of another wireless signal receiving system provided in an embodiment of the present application. In this embodiment, the wireless signal receiving system may include a wireless signal receiving device, a single-feed global positioning system module GPSM1, and a dual-feed wireless wide area network module WWANM. Among them, the wireless signal receiving device includes a first antenna Ant.1, a second antenna Ant.2, a third antenna Ant.3, a fourth antenna Ant.4, a first low noise amplifier LNA1, a second low noise amplifier LNA2, a first duplexer DIP1 (Diplexer), a first signal separation device SS1, a first signal switching device SSW1, a second signal switching device SSW2, a first module switching device MSW1, a second module switching device MSW2, a first signal merging device SC1, and a second signal merging device SC2.
[0098] The first antenna Ant.1 can be connected to the first low noise amplifier LNA1, the second antenna Ant.2 can be connected to the second low noise amplifier LNA2, the first signal separation device SS1 can be connected to the third antenna Ant.3, the first signal switching device SSW1 and the second signal switching device SSW2, the fourth antenna Ant.4 can be connected to the first duplexer DIP1, the first duplexer DIP1 is connected to the second signal merging device SC2, the first signal switching device SSW1 is connected to the first low noise amplifier LNA1, the second signal switching device SSW2 is connected to the second low noise amplifier LNA2, the first module switching device MSW1 is connected to the first signal merging device SC1, the second signal merging device SC2 and the first signal switching device SSW1, the second module switching device MSW2 is connected to the first signal merging device SC1, the second signal switching device SSW2 and the dual-feed wireless wide area network module WWANM, the first signal merging device SC1 is connected to the single-feed global positioning system module GPSM1, and the second signal merging device SC2 is connected to the dual-feed wireless wide area network module WWANM.
[0099] Among them, the functions and connection relationships of the third antenna Ant.3, the first signal separation device SS1, the first signal merging device SC1, and the single-feed global positioning system module GPSM1 are the same as those in the aforementioned embodiment. Components with the same symbols represent that the functions of the components include the same functions as in the aforementioned embodiment, and they will not be repeated here, and only the differences from the aforementioned embodiment will be described.
[0100] The first antenna Ant.1 and the second antenna Ant.2 are similar to the above-mentioned embodiment, and the difference from the above-mentioned embodiment is that a first low noise amplifier LNA1 is added between the first antenna Ant.1 and the first signal switching device SSW1, and a second low noise amplifier LNA2 is added between the second antenna Ant.2 and the second signal switching device SSW2. In this embodiment, the first low noise amplifier LNA1 is used to receive the first wireless signal, and perform signal processing such as noise filtering and signal amplification on the first wireless signal, and then output the processed wireless signal to the first signal switching device SSW1; the second low noise amplifier LNA2 is used to receive the second wireless signal, and perform signal processing such as noise filtering and signal amplification on the second wireless signal, and then output the processed wireless signal to the second signal switching device SSW2.
[0101] The fourth antenna Ant.4 is connected to the first duplexer DIP1, and is used to receive any sixth wireless signal including a wireless wide area network frequency band (for example, the sixth wireless signal may include a wireless wide area network 3300MHz to 5950MHz frequency band and a wireless wide area network 617MHz to 2690MHz frequency band, including 3300MHz, 5950MHz, 617MHz and 2690MHz), and transmit the sixth wireless signal including the wireless wide area network frequency band to the first duplexer DIP1.
[0102] The second signal merging device SC2 is connected to the first duplexer DIP1, the first module switching device MSW1 and the dual-feed wireless wide area network module WWANM, and is used to merge the wireless signals received from the first module switching device MSW1 and the first duplexer DIP1 into a seventh wireless signal. In this embodiment, the first duplexer DIP1 can receive the sixth wireless signal from the fourth antenna Ant.4, and split the sixth wireless signal into two wireless signals of wireless wide area network frequency bands of different frequency bands (for example, wireless wide area network 3300MHz~5950MHz frequency band and wireless wide area network 617MHz~2690MHz frequency band), and then transmit the wireless signals split by the first duplexer DIP1 to the duplexer DIP and extractor EX included in the second signal merging device SC2 respectively (in a possible implementation, the wireless signal of the wireless wide area network 3300MHz~5950MHz frequency band is transmitted The wireless signal of the wireless wide area network in the frequency band of 617MHz to 2690MHz is sent to the duplexer DIP, and the wireless signal of the wireless wide area network is transmitted to the extractor EX). Then, the second signal merging device SC2 can merge the wireless signals from the first duplexer DIP1 and the first module switching device MSW1 through the extractor EX and filter out the wireless signals other than the wireless signals of the frequency band to be retained, and then merge the wireless signal from the other output port of the first duplexer DIP1 and the wireless signal retained by the extractor EX into a seventh wireless signal through the duplexer DIP, and then output the seventh wireless signal to the dual-feed wireless wide area network module WWANM.
[0103] In this embodiment, the wireless signal receiving system can ensure that the dual-feed wireless wide area network module WWANM can utilize the wireless signal of the wireless wide area network frequency band while reducing the interference of the GPS wireless signal and improving the reception quality of the GPS wireless signal through the above functional structure.
[0104] Reference Figure 3 , is a schematic diagram of the structure of another wireless signal receiving system provided in an embodiment of the present application. Figure 3As shown, the wireless signal receiving system may include a wireless signal receiving device, a single-feed global positioning system module GPSM1 and a dual-feed wireless wide area network module WWANM. The wireless signal receiving device includes a first antenna Ant.1, a second antenna Ant.2, a third antenna Ant.3, a first duplexer DIP1 (Diplexer), a second duplexer DIP2 (Diplexer), a third duplexer DIP3 (Diplexer), a first extractor EX1, a first signal merging device SC1, a second signal merging device SC2, a first signal separating device SS1, a first low noise amplifier LNA1, a second low noise amplifier LNA2, a first signal switching device SSW1, a second signal switching device SSW2, a first module switching device MSW1 and a second module switching device MSW2. The first duplexer DIP1 is connected to the first antenna Ant.1, the second signal merging device SC2 and the first extractor EX1, the second duplexer DIP2 is connected to the second antenna Ant.2, the second low noise amplifier LNA2 and the third duplexer DIP3, the first low noise amplifier LNA1 is connected to the first extractor EX1 and the first signal switching device SSW1, the first module switching device MSW1 is connected to the first signal switching device SSW1, the first signal merging device SC1 and the second signal merging device SC2, the second signal merging device SC2 is connected to the first extractor EX1 to And a dual-feed wireless wide area network module WWANM, the first signal separation device SS1 is connected to the third antenna Ant.3, the first signal switching device SSW1 and the second signal switching device SSW2, the second signal switching device SSW2 is connected to the second low noise amplifier LNA2 and the second module switching device MSW2, the second module switching device MSW2 is connected to the first signal merging device SC1 and the third duplexer DIP3, the third duplexer DIP3 is connected to the dual-feed wireless wide area network module WWANM, and the first signal merging device SC1 is connected to the single-feed global positioning system module GPSM1.
[0105] Among them, the functions and connection relationships of the third antenna Ant.3, the first signal separation device SS1, the first signal merging device SC1 and the single-feed global positioning system module GPSM1 included in the wireless signal receiving system in the embodiment of the present application are the same as those in the aforementioned embodiment. Components with the same symbols represent that the functions of the components include the same functions as in the aforementioned embodiment, and they will not be repeated here, and only the differences from the aforementioned embodiment will be explained.
[0106] The first antenna Ant.1 is connected to the first duplexer DIP1. Compared with the first antenna Ant.1 in the aforementioned embodiment, the first antenna Ant.1 can also be used to receive a first wireless signal including a wireless wide area network frequency band (for example, the frequency band of the first wireless signal can also include a wireless wide area network 3300MHz to 5950MHz frequency band and a wireless wide area network 617MHz to 2690MHz frequency band). The first duplexer DIP1 can receive the first wireless signal from the first antenna Ant.1 and split the first wireless signal into a wireless signal in the wireless wide area network frequency band and a wireless signal in the global positioning system L1 frequency band (in a possible implementation, the first duplexer DIP1 can also split the first wireless signal into a wireless signal in the wireless wide area network frequency band and a wireless signal in the global positioning system L1 frequency band). The wireless signals split by the first duplexer DIP1 are respectively transmitted to the second signal merging device SC2 and the first extractor EX1 (in a possible implementation method, the wireless signals of the wireless wide area network 3300MHz ~ ~ 5950MHz frequency band can be transmitted to the duplexer of the second signal merging device SC2, and the wireless signals of the wireless wide area network 617MHz ~ 2690MHz frequency band and the global positioning system L1 frequency band can be transmitted to the first extractor EX1).
[0107] The first extractor EX1 is connected to the second signal merging device SC2, the first low noise amplifier LNA1 and the first duplexer DIP1, and is used to filter out wireless signals other than the wireless signals of the frequency band to be retained. In this embodiment, the first extractor EX1 receives the wireless signal from the first duplexer DIP1, and is used to filter out wireless signals other than the wireless signals of the global positioning system L1 frequency band (or the frequency band including the wireless wide area network 617MHz to 5950MHz, which includes 617MHz and 5950MHz) in the first wireless signal (in another possible implementation, the wireless signals of the wireless wide area network 617MHz~2690MHz frequency band and the global positioning system L1 frequency band can be split by the first extractor EX1 into wireless signals of the wireless wide area network 617MHz~2690MHz frequency band and wireless signals of the global positioning system L1 frequency band, and the wireless signals of the wireless wide area network 617MHz~2690MHz frequency band can be transmitted to the second signal merging device SC2. 2, the wireless signal of the global positioning system L1 frequency band is transmitted to the first low noise amplifier LNA1), further, after the first duplexer DIP1 splits the wireless signal, the wireless signal other than the wireless signal of the global positioning system L1 frequency band is immediately filtered out to ensure the quality of the wireless signal of the global positioning system L1 frequency band, and when the first antenna Ant.1 simultaneously receives the wireless signal of the wireless wide area network frequency band and the wireless signal of the global positioning system L1 frequency band, the interference to the GPS wireless signal is reduced, and then the wireless signal of the global positioning system L1 frequency band (or the frequency band including the wireless wide area network 617MHz to 5950MHz, which includes 617MHz and 5950MHz) is transmitted to the first low noise amplifier LNA1 or the second signal merging device SC2.
[0108] The first low noise amplifier LNA1 can be coupled to the first antenna Ant.1, and connected to the first extractor EX1 and the first signal switching device SSW1, for receiving the wireless signal from the first extractor EX1, and performing signal processing such as noise filtering and signal amplification on the wireless signal from the first extractor EX1, and then outputting the processed wireless signal to the first signal switching device SSW1.
[0109] The second signal merging device SC2 is connected to the first duplexer DIP1, the first extractor EX1, the first module switching device MSW1 and the dual-feed wireless wide area network module WWANM, and is used to merge the wireless signals received from the first module switching device MSW1, the first extractor EX1 and the first duplexer DIP1 into a seventh wireless signal. In this embodiment, the second signal merging device SC2 can merge the wireless signals from the first extractor EX1 and the first low noise amplifier LNA1 after noise filtering and signal amplification through the extractor EX, and filter out wireless signals other than the wireless signals of the global positioning system L1 frequency band, and then merge the wireless signal from the other output port of the first duplexer DIP1 and the wireless signal retained by the extractor EX into the seventh wireless signal through the duplexer DIP, and then output the seventh wireless signal to the dual-feed wireless wide area network module WWANM. The above functional structure can ensure that a single antenna is used to receive wireless signals including wireless WAN band and wireless signals of the global positioning system L1 band. When the dual-feed wireless WAN module WWANM can utilize the wireless signals of the wireless WAN band, it can reduce the interference of GPS wireless signals and improve the reception quality of GPS wireless signals.
[0110] The second antenna Ant.2 is connected to the second duplexer DIP2 and coupled to the second low noise amplifier LNA2. Compared with the second antenna Ant.2 in the aforementioned embodiment, it can also be used to receive a multi-input multi-output (MIMO) wireless signal including a wireless wide area network band. The second duplexer is used to receive the wireless signal of the second antenna, and split the wireless signal of the second antenna into a wireless signal of the global positioning system L5 band and a MIMO wireless signal of the wireless wide area network band, and then transmit the wireless signal of the global positioning system L5 band and the MIMO wireless signal of the wireless wide area network band split by the second duplexer DIP2 to the second low noise amplifier LNA2 and the third duplexer DIP3 respectively, and then the MIMO wireless signal of the wireless wide area network band and the wireless signal of the global positioning system L5 band after noise filtering and signal amplification by the second low noise amplifier LNA2 are combined by the third duplexer DIP3, and output to the dual-feed wireless wide area network module WWANM. The above functional structure can ensure that a single antenna can receive MIMO wireless signals including wireless wide area network frequency bands and wireless signals of the global positioning system L5 frequency band. While the dual-feed wireless wide area network module WWANM can utilize the MIMO wireless signals of the wireless wide area network frequency band, it can reduce interference to the GPS wireless signal and improve the reception quality of the GPS wireless signal.
[0111] In summary, the embodiment of the present application can receive multiple wireless signals including different frequency bands (such as L1 frequency band and L5 frequency band, etc.) through multiple antennas, and then process the multiple wireless signals including different frequency bands through signal processing such as signal separation and signal amplification, and then select and switch the wireless signal to be output through the signal switching device, and then select the wireless network module to be fed into by the module switching device, and merge the wireless signals according to the module requirements, or directly feed the wireless signal into the selected wireless network module. Through the wireless signal receiving device provided by the present application, while reducing the interference of the GPS wireless signal with the wireless signal of the wireless wide area network frequency band, the reception of the L5 frequency band wireless signal of the global positioning system can be increased, thereby improving the positioning accuracy of the global positioning system and reducing the positioning error. In addition, the present application selects the wireless network module to be fed into by the module switching device, so that when the wireless signal is unstable, it can provide users with multiple wireless network module output options to increase the stability of the system.
[0112] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A wireless signal receiving device, characterized in that: include: A first antenna, a second antenna, a third antenna, a first signal separation device, a first signal switching device, a second signal switching device, a first module switching device, a second module switching device, a first signal merging device, a fourth antenna, a first duplexer, and a second signal merging device; The first antenna is used to receive a first wireless signal including a global positioning system L1 frequency band; The second antenna is used to receive a second wireless signal including a global positioning system L5 frequency band; The third antenna is used to receive external antenna wireless signals including the GPS L1 frequency band and the GPS L5 frequency band; The first signal separation device is connected to the third antenna and is used to separate the external antenna wireless signal into a third wireless signal of the global positioning system L1 frequency band and a fourth wireless signal of the global positioning system L5 frequency band; The first signal switching device is coupled to the first antenna and connected to the first signal separation device, and is used to switch and output the first wireless signal and the third wireless signal respectively; The second signal switching device is coupled to the second antenna and connected to the first signal separation device, and is used to switch and output the second wireless signal and the fourth wireless signal respectively; The first module switching device is connected to the first signal switching device and is used to switch the output path of the first wireless signal or the third wireless signal; The second module switching device is connected to the second signal switching device and is used to switch the output path of the second wireless signal or the fourth wireless signal; The first signal merging device is connected to the first module switching device and the second module switching device, and is used to merge the wireless signals received from the first module switching device and the second module switching device into a fifth wireless signal The fourth antenna is used to receive a sixth wireless signal including a wireless wide area network frequency band; The first duplexer is connected to the fourth antenna and is used to receive the sixth wireless signal; The second signal merging device is connected to the first duplexer and the first module switching device, and is used to merge the wireless signals received from the first module switching device and the first duplexer into a seventh wireless signal.
2. The wireless signal receiving device according to claim 1, characterized in that: The wireless signal receiving device further includes: a first low noise amplifier and a second low noise amplifier; The first low noise amplifier is coupled to the first antenna and connected to the first signal switching device, and is used to receive the first wireless signal; The second low noise amplifier is coupled to the second antenna and connected to the second signal switching device, and is used for receiving the second wireless signal.
3. The wireless signal receiving device according to claim 1, characterized in that: The wireless signal receiving device further includes: a first duplexer and an extractor; The first duplexer is connected to the first antenna and is used to receive the wireless signal of the first antenna; The extractor is connected to the first duplexer and coupled to the first signal switching device, and is used to receive the wireless signal of the first duplexer; The first antenna is further used to receive a sixth wireless signal including a wireless wide area network frequency band.
4. The wireless signal receiving device according to claim 1, characterized in that: The wireless signal receiving device further includes: a second duplexer and a third duplexer; The second duplexer is connected to the second antenna and is used to receive the wireless signal of the second antenna; The third duplexer is connected to the second duplexer and the second module switching device, and is used to receive wireless signals from the second module switching device and the second duplexer; The second antenna is also used to receive a multiple-input multiple-output system MIMO wireless signal including a wireless wide area network frequency band.
5. The wireless signal receiving device according to claim 1, characterized in that: The first signal separation device is a triplexer.
6. The wireless signal receiving device according to claim 1, characterized in that: The first signal combining device is a triplexer.
7. The wireless signal receiving device according to claim 1, characterized in that: The second signal combining device includes a duplexer and an extractor.
8. The wireless signal receiving device according to claim 1, characterized in that: The frequency band of the first wireless signal includes the frequency band of 617 MHz to 5950 MHz of the wireless wide area network, and the frequency band of the second wireless signal includes the frequency band of 617 MHz to 5000 MHz of the wireless wide area network.
9. A wireless signal receiving system, characterized in that: It includes a wireless signal receiving device, a single-feed global positioning system module and a dual-feed wireless wide area network module; the wireless signal receiving device includes: a first antenna, a second antenna, a third antenna, a first signal separation device, a first signal switching device, a second signal switching device, a first module switching device, a second module switching device, and a first signal merging device; The first antenna is used to receive a first wireless signal including a global positioning system L1 frequency band; The second antenna is used to receive a second wireless signal including a global positioning system L5 frequency band; The third antenna is used to receive external antenna wireless signals including the GPS L1 frequency band and the GPS L5 frequency band; The first signal separation device is connected to the third antenna and is used to separate the external antenna wireless signal into a third wireless signal of the global positioning system L1 frequency band and a fourth wireless signal of the global positioning system L5 frequency band; The first signal switching device is coupled to the first antenna and connected to the first signal separation device, and is used to switch and output the first wireless signal and the third wireless signal respectively; The second signal switching device is coupled to the second antenna and connected to the first signal separation device, and is used to switch and output the second wireless signal and the fourth wireless signal respectively; The first module switching device is connected to the first signal switching device and is used to switch the output path of the first wireless signal or the third wireless signal; The second module switching device is connected to the second signal switching device and is used to switch the output path of the second wireless signal or the fourth wireless signal; The first signal merging device is connected to the first module switching device and the second module switching device, and is used to merge the wireless signals received from the first module switching device and the second module switching device into a fifth wireless signal; The single-feed global positioning system module is connected to the first signal combining device and is used to receive the fifth wireless signal; The dual-feed wireless wide area network module is coupled to the first module switching device and the second module switching device, and is used to receive wireless signals from the first module switching device and the second module switching device.
10. The wireless signal receiving system according to claim 9, characterized in that: The wireless signal receiving device further comprises: a fourth antenna, a first duplexer and a second signal combining device; The fourth antenna is used to receive a sixth wireless signal including a wireless wide area network frequency band; The first duplexer is connected to the fourth antenna and is used to receive the sixth wireless signal; The second signal merging device is connected to the first duplexer and the first module switching device, and is used to merge the wireless signals received from the first module switching device and the first duplexer into a seventh wireless signal; The dual-feed wireless wide area network module is also used to receive the seventh wireless signal.
11. The wireless signal receiving system according to claim 9, characterized in that: The wireless signal receiving device further includes: a first low noise amplifier and a second low noise amplifier; The first low noise amplifier is coupled to the first antenna and connected to the first signal switching device, and is used to receive the first wireless signal; The second low noise amplifier is coupled to the second antenna and connected to the second signal switching device, and is used for receiving the second wireless signal.
12. The wireless signal receiving system according to claim 9, characterized in that: The wireless signal receiving device further includes: a first duplexer and an extractor; The first duplexer is connected to the first antenna and is used to receive the wireless signal of the first antenna; The extractor is connected to the first duplexer and coupled to the first signal switching device, and is used to receive the wireless signal of the first duplexer; The first antenna is further used to receive a sixth wireless signal including a wireless wide area network frequency band.
13. The wireless signal receiving system according to claim 9, characterized in that: The wireless signal receiving device further includes: a second duplexer and a third duplexer; The second duplexer is connected to the second antenna and is used to receive the wireless signal of the second antenna; The third duplexer is connected to the second duplexer and the second module switching device, and is used to receive wireless signals from the second module switching device and the second duplexer; The second antenna is further used to receive a multiple-input multiple-output system MIMO wireless signal including a wireless wide area network frequency band; The dual-feed wireless wide area network module is also used to receive the wireless signal of the third duplexer.
14. The wireless signal receiving system according to claim 9, characterized in that: The first signal separation device is a triplexer.
15. The wireless signal receiving system according to claim 9, characterized in that: The first signal combining device is a triplexer.
16. The wireless signal receiving system according to claim 10, characterized in that: The second signal combining device includes a duplexer and an extractor.
17. The wireless signal receiving system according to claim 9, characterized in that: The frequency band of the first wireless signal includes the frequency band of 617 MHz to 5950 MHz of the wireless wide area network, and the frequency band of the second wireless signal includes the frequency band of 617 MHz to 5000 MHz of the wireless wide area network.
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