CN109348063B - Wireless communication equipment and antenna switching circuit, method and system thereof - Google Patents

Wireless communication equipment and antenna switching circuit, method and system thereof Download PDF

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Publication number
CN109348063B
CN109348063B CN201811384977.2A CN201811384977A CN109348063B CN 109348063 B CN109348063 B CN 109348063B CN 201811384977 A CN201811384977 A CN 201811384977A CN 109348063 B CN109348063 B CN 109348063B
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module
radio frequency
antenna
frequency module
switching
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CN109348063A (en
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刘一阳
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Telephone Function (AREA)
  • Transceivers (AREA)

Abstract

The application is suitable for the technical field of communication, a wireless communication device and an antenna switching circuit, a method and a system thereof are provided, the embodiment of the application judges whether the wireless communication device is sleeved with a protective sleeve or not, when the wireless communication device is not sleeved with the protective sleeve, the radio frequency module is connected with the first antenna in an electric connection mode, when the wireless communication device is sleeved with the protective sleeve, the radio frequency module is disconnected from the first antenna in an electric connection mode, the radio frequency module is connected with the second antenna, the working frequency of the second antenna is larger than that of the first antenna in an electric connection mode, the influence of the working frequency of the first antenna on low-frequency offset caused by the fact that the protective sleeve is sleeved can be effectively eliminated, and the communication performance.

Description

Wireless communication equipment and antenna switching circuit, method and system thereof
Technical Field
The present application relates to the field of communications technologies, and in particular, to a wireless communication device, and an antenna switching circuit, method, and system thereof.
Background
With the continuous development of communication technology, various wireless communication devices such as mobile phones, tablet computers, smart wristbands, personal digital assistants and the like are in endless numbers, and great convenience is brought to daily production and life of people.
In practical use, external environmental factors such as the protective sleeve, the number of base stations, the geographic environment, the building density and the pattern sleeved on the wireless communication device all affect the communication performance of the wireless communication device.
Disclosure of Invention
In view of this, embodiments of the present application provide a wireless communication device, and an antenna switching circuit, a method, and a system thereof, which can effectively reduce adverse effects of a protective cover on communication quality of the wireless communication device and improve communication performance.
A first aspect of an embodiment of the present application provides an antenna switching circuit, which is applied to a wireless communication device, where the wireless communication device includes at least one radio frequency module, and the antenna switching circuit includes:
at least one first antenna;
each radio frequency module corresponds to one first antenna and one second antenna, and the working frequency of the first antenna corresponding to the radio frequency module is smaller than that of the second antenna corresponding to the radio frequency module;
the wireless communication device comprises a protective sleeve detection module, a switching module and a switching module, wherein the protective sleeve detection module is used for detecting whether the wireless communication device is sleeved with a protective sleeve or not, sending a first switching signal when the wireless communication device is not sleeved with the protective sleeve, and sending a second switching signal when the wireless communication device is sleeved with the protective sleeve; and
the switching module is respectively electrically connected with the first antenna, the second antenna, the protective sleeve detection module and the radio frequency module, and is used for switching on the electrical connection between the radio frequency module and the first antenna corresponding to the radio frequency module when receiving the first switching signal, and switching off the electrical connection between the radio frequency module and the first antenna corresponding to the radio frequency module and switching on the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module when receiving the second switching signal.
In one embodiment, the at least one radio frequency module includes at least one of a GPS module, a WiFi module, a bluetooth module, a GSM module, and an NFC module.
In one embodiment, the at least one radio frequency module comprises a GPS module corresponding to a first antenna having an operating frequency in the L1 band and a second antenna having an operating frequency greater than the L1 band.
In one embodiment, the second antenna corresponding to the GPS module is one of antennas based on B3, B4, B9, B10, or B24 frequency bands of the LTE technology standard.
In one embodiment, the antenna switching circuit further comprises:
each radio frequency module corresponds to at least one third antenna, and the working frequency of the second antenna corresponding to the radio frequency module is smaller than that of the third antenna corresponding to the radio frequency module; and
the frequency detection module is used for detecting the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module and sending a third switching signal when the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module is less than the working frequency of the first antenna corresponding to the radio frequency module;
the switching module is further electrically connected with the third antenna and the frequency detection module, and is further configured to disconnect the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module and sequentially connect the electrical connection between the radio frequency module and each of the third antennas corresponding to the radio frequency module when receiving the third switching signal until the frequency of a communication signal transmitted by the third antenna electrically connected with the radio frequency module is greater than or equal to the operating frequency of the first antenna corresponding to the radio frequency module.
In an embodiment, the switching module is specifically configured to sequentially connect the radio frequency module and each third antenna corresponding to the radio frequency module according to a sequence that the operating frequency of the third antenna corresponding to the radio frequency module is from small to large until the frequency of a communication signal transmitted by the third antenna electrically connected to the radio frequency module is greater than or equal to the operating frequency of the first antenna corresponding to the radio frequency module.
In one embodiment, the switching module includes at least one electronic switch unit equal in number to the at least one radio frequency module, and each radio frequency module corresponds to one electronic switch unit;
the input end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the radio frequency module, the output end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the first antenna and the second antenna corresponding to the radio frequency module, and the controlled end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the protective sleeve detection module.
A second aspect of the embodiments of the present application provides an antenna switching method, which is applied to a wireless communication device, where the wireless communication device includes the above antenna switching circuit, and the antenna switching method includes:
controlling the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with a protective sleeve or not;
when the wireless communication equipment is not sleeved with a protective sleeve, controlling the protective sleeve detection module to send a first switching signal, and triggering the switching module to switch on the electric connection between the radio frequency module and a first antenna corresponding to the radio frequency module when receiving the first switching signal;
when the wireless communication equipment cover is equipped with the protective sheath, control protective sheath detection module sends the second switching signal, triggers the switching module is receiving when the second switching signal, disconnection the radio frequency module with the electricity between the first antenna that the radio frequency module corresponds is connected, and the switch-on the radio frequency module with the electricity between the second antenna that the radio frequency module corresponds is connected.
A third aspect of the embodiments of the present application provides an antenna switching system, which is applied to a wireless communication device, where the wireless communication device includes the above-mentioned antenna switching circuit, and the antenna switching system includes:
the first control module is used for controlling the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with a protective sleeve or not;
the second control module is used for controlling the protective sleeve detection module to send a first switching signal when the wireless communication equipment is not sleeved with a protective sleeve, and triggering the switching module to switch on the electric connection between the radio frequency module and the first antenna corresponding to the radio frequency module when receiving the first switching signal;
and the third control module is used for controlling the protective sleeve detection module to send a second switching signal and trigger the switching module to disconnect the radio frequency module from the electric connection between the first antennas corresponding to the radio frequency module and to connect the radio frequency module with the electric connection between the second antennas corresponding to the radio frequency module when the wireless communication equipment is sleeved with the protective sleeve.
A fourth aspect of embodiments of the present application provides a wireless communication device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the above method when executing the computer program.
A fifth aspect of embodiments of the present application provides a computer-readable storage medium, which stores a computer program that, when executed by a processor, implements the steps of the above-described method.
This application embodiment is equipped with the protective sheath through detecting wireless communication equipment cover, when wireless communication equipment does not overlap and establishes the protective sheath, the electricity between switch-on radio frequency module and the first antenna is connected, when wireless communication equipment overlaps and is equipped with the protective sheath, the electricity between disconnection radio frequency module and the first antenna is connected, and switch-on radio frequency module and the electricity between the second antenna that operating frequency is greater than the first antenna are connected, can effectively eliminate the influence of the operating frequency of the first antenna that the protective sheath leads to low frequency offset of cover, improve wireless communication equipment's communication performance.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an antenna switching circuit according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an antenna switching circuit according to a second embodiment of the present application;
fig. 3 and fig. 4 are schematic structural diagrams of an antenna switching circuit according to a third embodiment of the present application;
fig. 5 is a schematic flowchart of an antenna switching method according to a fourth embodiment of the present application;
fig. 6 is a schematic structural diagram of an antenna switching system according to a fifth embodiment of the present application;
fig. 7 is a schematic structural diagram of a wireless communication device according to a sixth embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the drawings described above, are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
Example one
As shown in fig. 1, the present embodiment provides an antenna switching circuit 10, which is applied to a wireless communication device 100, where the wireless communication device 100 includes at least one rf module (fig. 1 exemplarily shows M rf modules, where M ≧ 1 and is an integer, including the rf module 101, the rf modules 102, … …, and the rf module 10M).
In a specific application, the wireless communication device may be any device having a wireless communication function, such as a mobile phone, a tablet computer, an intelligent bracelet, a personal digital assistant, a point of sale (POS) device, and the like. The radio frequency module may be any circuit, chip or device provided in the wireless Communication device and having a function of transmitting a radio frequency signal For performing wireless Communication, such as a GPS (Global Positioning System) module, a WiFi module, a bluetooth module, a GSM (Global System For Mobile Communications) module, an NFC (Near Field Communication) module, and the like. The radio frequency module can be arranged independently of the baseband chip or integrated with the baseband chip.
In one embodiment, the at least one radio frequency module includes at least one of a GPS module, a WiFi module, a bluetooth module, a GSM module, and an NFC module.
As shown in fig. 1, the antenna switching circuit 10 includes:
at least one first antenna (fig. 1 exemplarily shows M first antennas including the first antenna 11, the first antenna 12, … …, and the first antenna 1M);
at least one second antenna (fig. 1 exemplarily shows that M first antennas are M second antennas 21, 22, … …, and 2M first antennas), each radio frequency module corresponds to one first antenna and one second antenna, and an operating frequency of the first antenna corresponding to the radio frequency module is less than an operating frequency of the second antenna corresponding to the radio frequency module;
the wireless communication device comprises a protective sleeve detection module 3, wherein the protective sleeve detection module 3 is used for detecting whether the wireless communication device 100 is sleeved with a protective sleeve or not, sending a first switching signal when the wireless communication device 100 is not sleeved with the protective sleeve, and sending a second switching signal when the wireless communication device 100 is sleeved with the protective sleeve; and
and the switching module 4 is electrically connected with the first antennas 11-1M, the second antennas 21-2M, the protective sleeve detection module 3 and the radio frequency modules 101-10M respectively, and is used for switching on the electrical connection between the radio frequency modules and the first antennas corresponding to the radio frequency modules when receiving a first switching signal, switching off the electrical connection between the radio frequency modules and the first antennas corresponding to the radio frequency modules when receiving a second switching signal, and switching on the electrical connection between the radio frequency modules and the second antennas corresponding to the radio frequency modules.
In this embodiment, the protective sheath is according to user's actual need cover and locates wireless communication equipment, mainly used to play protective action such as anti falling, antiskid, prevent scraping to wireless communication equipment, has aesthetic property or interesting protection architecture concurrently. The protective sleeve can be made of materials such as silica gel, plastics, metal, wood and the like.
In a specific application, according to different types of the radio frequency modules, the operating frequencies of the first antenna and the second antenna corresponding to the radio frequency modules are different, and are specifically determined by the frequencies of the radio frequency signals transmitted by the radio frequency modules of the corresponding types, as long as the operating frequency of the first antenna corresponding to the radio frequency module is ensured to be smaller than the operating frequency of the second antenna corresponding to the radio frequency module.
In one embodiment, the at least one radio frequency module comprises a GPS module corresponding to a first antenna having an operating frequency in the L1 band and a second antenna having an operating frequency greater than the L1 band.
In specific application, the frequency range of the L1 frequency band is 1.57542 ± 1.023MHz, so long as it is ensured that the working frequency of the second antenna corresponding to the GPS module is greater than 1.57542 ± 1.023MHz, and the second antenna of which working frequency is specifically selected is related to the thickness, material, structure and specific position of the protective sleeve on the wireless communication device.
In one embodiment, the second antenna corresponding to the GPS module is one of antennas based on B3, B4, B9, B10, or B24 frequency bands of the LTE technology standard.
In specific application, the second antenna is set as one of the antennas of B3, B4, B9, B10 or B24 frequency bands based on the LTE technical standard originally equipped in the wireless communication device, so that antenna multiplexing can be realized, the cost caused by additionally setting the second antenna can be saved, the number of wires can be reduced to the maximum extent, and the structure of the wireless communication device can be simplified. The letter B in B3, B4, B9, B10 and B24 is designated as BAND in its entirety. The uplink frequency range of the B3 frequency band is 1710 MHz-1785 MHz, the uplink frequency range of the B4 frequency band is 1710 MHz-1755 MHz, the uplink frequency range of the B9 frequency band is 1749.9 MHz-1784.9 MHz, the uplink frequency range of the B10 frequency band is 1710 MHz-1770 MHz, and the uplink frequency range of the B24 frequency band is 1626.5 MHz-1660.5 MHz.
In specific application, the protective sleeve detection module can be a program module in a system setting program of the wireless communication device, and the principle of detecting whether the wireless communication device is sleeved with the protective sleeve is as follows: a user sets the program module of the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with the protective sleeve or not through any man-machine interaction mode. The protective sleeve detection module can also be a communication performance detection device, a circuit or a chip arranged in the wireless communication equipment and used for detecting the intensity and/or the error rate of a communication signal of the wireless communication equipment, when the intensity is weakened and/or the error rate is improved, the protective sleeve is considered to be sleeved on the wireless communication equipment, and otherwise, the wireless communication equipment is considered not to be sleeved with the protective sleeve. The protective sleeve detection module can also be a proximity sensor or a light sensor arranged in the wireless communication equipment, and detects whether the wireless communication equipment is sleeved with the protective sleeve or not by detecting whether an object contacts the wireless communication equipment or the light intensity of the environment where the wireless communication equipment is located. Specific implementations of the protective casing detection module can include combinations of at least one or more of the foregoing.
In a specific application, the switching module may be implemented by an analog switch, an electronic switch, a chip with a corresponding function, or a circuit structure. The switching module may be electrically connected to any position in the communication link where the first antenna and/or the second antenna are located.
In a particular application, an electrical connection refers to a communication connection for transmitting electrical signals, which is implemented by a cable line, a data bus, or the like. The electrical signal may be a current signal, a voltage signal, a pulse signal, or the like. The first switching signal and the second switching signal are electrical signals.
This embodiment is through detecting whether wireless communication equipment overlaps and is equipped with the protective sheath, when wireless communication equipment does not overlap and establishes the protective sheath, the electricity between switch-on radio frequency module and the first antenna is connected, when wireless communication equipment overlaps and is equipped with the protective sheath, the electricity between disconnection radio frequency module and the first antenna is connected, and switch-on radio frequency module and the electricity between the second antenna that operating frequency is greater than the first antenna are connected, can effectively eliminate the influence of the operating frequency of the first antenna that the protective sheath leads to low frequency offset of cover, improve wireless communication equipment's communication performance.
Example two
As shown in fig. 2, in this embodiment, the antenna switching circuit 10 in the first embodiment further includes:
at least one third antenna, where each rf module corresponds to at least one third antenna (fig. 2 exemplarily shows that the third antenna 511, the third antenna 512, … …, the third antenna 51N, the third antenna 521, the third antenna 522, … …, the third antenna 52N, … …, the third antenna 5M1, the third antenna 5M2, … …, and the third antenna 5MN are M × N third antennas, where M is an integer greater than or equal to 1), and an operating frequency of the second antenna corresponding to the rf module is less than an operating frequency of the third antenna corresponding to the rf module; and
the frequency detection module 6 is configured to detect a frequency of a communication signal transmitted by the second antenna corresponding to the radio frequency module, and send a third switching signal when the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module is less than a working frequency of the first antenna corresponding to the radio frequency module;
the switching module 4 is further electrically connected to the third antennas 511 to 5MN and the frequency detection module 6, and is further configured to, when receiving a third switching signal, disconnect the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module, and sequentially connect the electrical connection between the radio frequency module and each of the third antennas corresponding to the radio frequency module until the frequency of a communication signal transmitted by the third antenna electrically connected to the radio frequency module is greater than or equal to the operating frequency of the first antenna corresponding to the radio frequency module.
In a specific application, the frequency detection module may be any physical device, chip or circuit provided in the wireless communication device and having a function of detecting the frequency of the communication signal transmitted by each antenna, or may be a software program module.
In a specific application, the frequency detection module sends out a third switching signal when the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module is less than the working frequency of the first antenna corresponding to the radio frequency module, and also sends out the third switching signal when the frequency of the communication signal transmitted by any one third antenna corresponding to the radio frequency module is less than the working frequency of the first antenna corresponding to the radio frequency module.
In a specific application, when receiving the third switching signal, the switching module switches the radio frequency module electrically connected to the second antenna to be electrically connected to the third antenna, or switches the radio frequency module electrically connected to the third antenna to be electrically connected to the next third antenna.
In an embodiment, the switching module is specifically configured to sequentially connect the radio frequency module and each third antenna corresponding to the radio frequency module according to a sequence that the operating frequency of the third antenna corresponding to the radio frequency module is from small to large until the frequency of a communication signal transmitted by the third antenna electrically connected to the radio frequency module is greater than or equal to the operating frequency of the first antenna corresponding to the radio frequency module.
In a specific application, the switching module may also randomly switch the radio frequency module to be electrically connected to the next third antenna corresponding to the radio frequency module according to a random sequence. And the switching can be performed according to the sequence of the working frequency of the third antenna corresponding to the radio frequency module from large to small.
In a specific application, according to different types of the radio frequency modules, the operating frequency of the third antenna corresponding to the radio frequency module is different, and is specifically determined by the frequency of the radio frequency signal transmitted by the radio frequency module of the corresponding type, as long as the operating frequency of the second antenna corresponding to the radio frequency module is ensured to be smaller than the operating frequency of the third antenna corresponding to the radio frequency module.
In one embodiment, the third antenna corresponding to the GPS module is one of antennas based on B3, B4, B9, B10, or B24 frequency bands of the LTE technology standard.
In a specific application, the third switching signal is an electrical signal.
This embodiment can switch the radio frequency module into the next antenna of electricity connection when the signal quality of the communication signal of the antenna transmission that the radio frequency module is connected at present is not good through additionally setting up third antenna and frequency detection module, until signal quality meets the requirements, can effectively improve the communication performance when wireless communication equipment cover is equipped with the protective sheath.
EXAMPLE III
As shown in fig. 3, based on the first embodiment or the second embodiment, the switching module 4 includes at least one electronic switch unit 41-4M equal to at least one rf module 101-10M in number, and each rf module corresponds to one electronic switch unit.
On the basis of the first embodiment, the connection relationship between the electronic switch unit and other devices in the present embodiment is as follows:
the input end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the radio frequency module, the output end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the first antenna and the second antenna corresponding to the radio frequency module, and the controlled end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the protective sleeve detection module.
Based on the first embodiment, in a specific application, the electronic switch unit may be a single-pole single-throw analog switch or a single-pole double-throw analog switch implemented by a logic circuit, or an electronic switch tube such as a triode, a field effect transistor, or the like.
On the basis of the second embodiment, the connection relationship between the electronic switch unit and other devices in the second embodiment is as follows:
the input end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the radio frequency module, the output end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the first antenna, the second antenna and the third antenna corresponding to the radio frequency module, and the controlled end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the protective sleeve detection module and the frequency detection module.
Based on the second embodiment, in a specific application, the electronic switch unit may be a single-pole single-throw analog switch, a single-pole double-throw analog switch, or a single-pole multi-throw analog switch implemented by a logic circuit, or implemented by an electronic switch tube such as a triode, a field effect tube, or the like.
Fig. 3 exemplarily shows the case that each electronic switch unit is realized by two single-pole single-throw analog switches on the basis of fig. 1.
Fig. 4 exemplarily shows the case that each electronic switch unit is implemented by a single-pole double-throw analog switch on the basis of fig. 1.
In the embodiment, the electronic switch is adopted to form the switching module so as to realize the switching function of the antenna connection path, and the antenna connection path switching device is simple in structure, easy to realize and low in cost.
Example four
As shown in fig. 5, this embodiment provides an antenna switching method implemented by the wireless communication device 100 in the first embodiment, the second embodiment, or the third embodiment, where the antenna switching method includes:
step S501, controlling the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with a protective sleeve or not;
step S502, when the wireless communication equipment is not sleeved with a protective sleeve, controlling the protective sleeve detection module to send a first switching signal, and triggering the switching module to switch on the electric connection between the radio frequency module and a first antenna corresponding to the radio frequency module when receiving the first switching signal;
step S503, when the wireless communication device is sleeved with a protective sleeve, the protective sleeve detection module is controlled to send a second switching signal, the switching module is triggered to disconnect the electric connection between the radio frequency module and the first antenna corresponding to the radio frequency module and to connect the electric connection between the radio frequency module and the second antenna corresponding to the radio frequency module when receiving the second switching signal.
In a Specific Application, the antenna switching method may be specifically executed by a baseband chip or a Processor of the wireless communication device, where the Processor may be a Central Processing Unit (CPU), or other general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In one embodiment, the antenna switching method further comprises:
controlling the frequency detection module to detect the frequency of a communication signal transmitted by a second antenna corresponding to the radio frequency module;
when the frequency of a communication signal transmitted by a second antenna corresponding to the radio frequency module is less than the working frequency of a first antenna corresponding to the radio frequency module, controlling the frequency detection module to send a third switching signal;
and controlling the switching module to disconnect the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module and sequentially connect the electrical connection between the radio frequency module and each third antenna corresponding to the radio frequency module when receiving the third switching signal until the frequency of a communication signal transmitted by the third antenna electrically connected with the radio frequency module is greater than or equal to the working frequency of the first antenna corresponding to the radio frequency module.
In one embodiment, the antenna switching method further comprises:
and controlling the switching module to sequentially switch on the electrical connection between the radio frequency module and each third antenna corresponding to the radio frequency module according to the sequence of the working frequency of the third antenna corresponding to the radio frequency module from small to large until the frequency of a communication signal transmitted by the third antenna electrically connected with the radio frequency module is greater than or equal to the working frequency of the first antenna corresponding to the radio frequency module.
This embodiment is through detecting whether wireless communication equipment overlaps and is equipped with the protective sheath, when wireless communication equipment does not overlap and establishes the protective sheath, the electricity between switch-on radio frequency module and the first antenna is connected, when wireless communication equipment overlaps and is equipped with the protective sheath, the electricity between disconnection radio frequency module and the first antenna is connected, and switch-on radio frequency module and the electricity between the second antenna that operating frequency is greater than the first antenna are connected, can effectively eliminate the influence of the operating frequency of the first antenna that the protective sheath leads to low frequency offset of cover, improve wireless communication equipment's communication performance.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
EXAMPLE five
As shown in fig. 6, the present embodiment provides an antenna switching system 6 for executing the method steps in the fourth embodiment, where the antenna switching system 6 may be a software program system in the wireless communication device 100 in the first embodiment, the second embodiment, or the third embodiment, and the antenna switching system includes:
the first control module 601 is configured to control the protective sleeve detection module to detect whether the wireless communication device is sleeved with a protective sleeve;
the second control module 602 is configured to control the protective sheath detection module to send a first switching signal when the wireless communication device is not sheathed with a protective sheath, and trigger the switching module to switch on electrical connection between the radio frequency module and a first antenna corresponding to the radio frequency module when the switching module receives the first switching signal;
and a third control module 603, configured to control when the wireless communication device cover is provided with a protective cover, the protective cover detection module sends a second switching signal, and triggers the switching module to receive the second switching signal, disconnect the radio frequency module from the first antenna corresponding to the radio frequency module, and connect the radio frequency module to the second antenna corresponding to the radio frequency module.
In one embodiment, the antenna switching system further comprises:
the fourth control module is used for controlling the frequency detection module to detect the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module;
the fifth control module is used for controlling the frequency detection module to send out a third switching signal when the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module is less than the working frequency of the first antenna corresponding to the radio frequency module;
and the sixth control module is used for controlling the switching module to disconnect the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module and sequentially connect the electrical connection between the radio frequency module and each third antenna corresponding to the radio frequency module when receiving the third switching signal until the frequency of a communication signal transmitted by the third antenna electrically connected with the radio frequency module is greater than or equal to the working frequency of the first antenna corresponding to the radio frequency module.
In one embodiment, the sixth control module is specifically configured to:
and controlling the switching module to sequentially switch on the electrical connection between the radio frequency module and each third antenna corresponding to the radio frequency module according to the sequence of the working frequency of the third antenna corresponding to the radio frequency module from small to large until the frequency of a communication signal transmitted by the third antenna electrically connected with the radio frequency module is greater than or equal to the working frequency of the first antenna corresponding to the radio frequency module.
This embodiment is through detecting whether wireless communication equipment overlaps and is equipped with the protective sheath, when wireless communication equipment does not overlap and establishes the protective sheath, the electricity between switch-on radio frequency module and the first antenna is connected, when wireless communication equipment overlaps and is equipped with the protective sheath, the electricity between disconnection radio frequency module and the first antenna is connected, and switch-on radio frequency module and the electricity between the second antenna that operating frequency is greater than the first antenna are connected, can effectively eliminate the influence of the operating frequency of the first antenna that the protective sheath leads to low frequency offset of cover, improve wireless communication equipment's communication performance.
EXAMPLE six
As shown in fig. 7, the present embodiment provides a wireless communication apparatus 7, which includes: the antenna switching circuit 10 according to the first embodiment, the second embodiment or the third embodiment further includes a processor 70, a memory 71, and a computer program 72, such as an antenna switching program, stored in the memory 71 and executable on the processor 70. The processor 70, when executing the computer program 72, implements the steps in the above-described embodiments of the antenna switching method, such as the steps S501 to S503 shown in fig. 5. Alternatively, the processor 70, when executing the computer program 72, implements the functions of the modules in the above device embodiments, for example, the functions of the modules 601 to 603 shown in fig. 6.
Illustratively, the computer program 72 may be partitioned into one or more modules that are stored in the memory 71 and executed by the processor 70 to accomplish the present application. The one or more modules may be a series of computer program instruction segments capable of performing certain functions that describe the execution of the computer program 72 in the wireless communication device 7. For example, the computer program 72 may be divided into a first control module, a second control module, and a third control module, each of which functions specifically as follows:
the first control module is used for controlling the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with a protective sleeve or not;
the second control module is used for controlling the protective sleeve detection module to send a first switching signal when the wireless communication equipment is not sleeved with a protective sleeve, and triggering the switching module to switch on the electric connection between the radio frequency module and the first antenna corresponding to the radio frequency module when receiving the first switching signal;
and the third control module is used for controlling the protective sleeve detection module to send a second switching signal and trigger the switching module to disconnect the radio frequency module from the electric connection between the first antennas corresponding to the radio frequency module and to connect the radio frequency module with the electric connection between the second antennas corresponding to the radio frequency module when the wireless communication equipment is sleeved with the protective sleeve.
The wireless communication device 7 may be a computing device such as a notebook, a palm computer, etc. The wireless communication device may include, but is not limited to, a processor 70, a memory 71. Those skilled in the art will appreciate that fig. 7 is merely an example of a wireless communication device 7 and does not constitute a limitation of the wireless communication device 7 and may include more or less components than those shown, or some components may be combined, or different components, for example, the wireless communication device may also include input output devices, network access devices, buses, etc.
The Processor 70 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 71 may be an internal storage unit of the wireless communication device 7, such as a hard disk or a memory of the wireless communication device 7. The memory 71 may also be an external storage device of the wireless communication device 7, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, provided on the wireless communication device 7. Further, the memory 71 may also include both an internal storage unit and an external storage device of the wireless communication device 7. The memory 71 is used for storing the computer programs and other programs and data required by the wireless communication device. The memory 71 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed wireless communication device, system and method may be implemented in other ways. For example, the above-described wireless communication device embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated module, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (9)

1. An antenna switching circuit, applied to a wireless communication device including at least one radio frequency module, the antenna switching circuit comprising:
at least one first antenna;
each radio frequency module corresponds to one first antenna and one second antenna, and the working frequency of the first antenna corresponding to the radio frequency module is smaller than that of the second antenna corresponding to the radio frequency module;
the wireless communication device comprises a protective sleeve detection module, a switching module and a switching module, wherein the protective sleeve detection module is used for detecting whether the wireless communication device is sleeved with a protective sleeve or not, sending a first switching signal when the wireless communication device is not sleeved with the protective sleeve, and sending a second switching signal when the wireless communication device is sleeved with the protective sleeve; and
the switching module is respectively electrically connected with the first antenna, the second antenna, the protective sleeve detection module and the radio frequency module, and is used for switching on the electrical connection between the radio frequency module and the first antenna corresponding to the radio frequency module when receiving the first switching signal, and switching off the electrical connection between the radio frequency module and the first antenna corresponding to the radio frequency module and switching on the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module when receiving the second switching signal;
each radio frequency module corresponds to at least one third antenna, and the working frequency of the second antenna corresponding to the radio frequency module is smaller than that of the third antenna corresponding to the radio frequency module; and
the frequency detection module is used for detecting the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module and sending a third switching signal when the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module is less than the working frequency of the first antenna corresponding to the radio frequency module;
the switching module is further electrically connected with the third antenna and the frequency detection module, and is further configured to disconnect the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module and sequentially connect the electrical connection between the radio frequency module and each of the third antennas corresponding to the radio frequency module when receiving the third switching signal until the frequency of a communication signal transmitted by the third antenna electrically connected with the radio frequency module is greater than or equal to the operating frequency of the first antenna corresponding to the radio frequency module.
2. The antenna switching circuit of claim 1 wherein the at least one radio frequency module comprises at least one of a GPS module, a WiFi module, a bluetooth module, a GSM module, and an NFC module.
3. The antenna switching circuit of claim 2 wherein said at least one radio frequency module includes a GPS module, said GPS module corresponding to a first antenna operating at a frequency in the L1 band and a second antenna operating at a frequency greater than the L1 band.
4. The antenna switching circuit of claim 3 wherein the second antenna corresponding to the GPS module is one of the antennas of the B3, B4, B9, B10 or B24 frequency bands based on the LTE technology standard.
5. The antenna switching circuit according to any one of claims 1 to 4, wherein the switching module is specifically configured to sequentially connect the radio frequency module and each third antenna corresponding to the radio frequency module in an order from a smaller operating frequency to a larger operating frequency of the third antenna corresponding to the radio frequency module until a frequency of a communication signal transmitted by the third antenna electrically connected to the radio frequency module is greater than or equal to an operating frequency of the first antenna corresponding to the radio frequency module.
6. The antenna switching circuit according to claim 1, wherein the switching module comprises at least one electronic switching unit in an equal number to the at least one radio frequency module, one electronic switching unit for each radio frequency module;
the input end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the radio frequency module, the output end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the first antenna and the second antenna corresponding to the radio frequency module, and the controlled end of the electronic switch unit corresponding to the radio frequency module is electrically connected with the protective sleeve detection module.
7. An antenna switching method applied to a wireless communication device including the antenna switching circuit according to any one of claims 1 to 6, the antenna switching method comprising:
controlling the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with a protective sleeve or not;
when the wireless communication equipment is not sleeved with a protective sleeve, controlling the protective sleeve detection module to send a first switching signal, and triggering the switching module to switch on the electric connection between the radio frequency module and a first antenna corresponding to the radio frequency module when receiving the first switching signal;
when the wireless communication equipment is sleeved with a protective sleeve, controlling the protective sleeve detection module to send a second switching signal, triggering the switching module to disconnect the electric connection between the radio frequency module and the first antenna corresponding to the radio frequency module and to connect the electric connection between the radio frequency module and the second antenna corresponding to the radio frequency module when receiving the second switching signal;
controlling the frequency detection module to detect the frequency of a communication signal transmitted by a second antenna corresponding to the radio frequency module;
when the frequency of a communication signal transmitted by a second antenna corresponding to the radio frequency module is less than the working frequency of a first antenna corresponding to the radio frequency module, controlling the frequency detection module to send a third switching signal;
and controlling the switching module to disconnect the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module and sequentially connect the electrical connection between the radio frequency module and each third antenna corresponding to the radio frequency module when receiving the third switching signal until the frequency of a communication signal transmitted by the third antenna electrically connected with the radio frequency module is greater than or equal to the working frequency of the first antenna corresponding to the radio frequency module.
8. An antenna switching system applied to a wireless communication device including the antenna switching circuit according to any one of claims 1 to 6, the antenna switching system comprising:
the first control module is used for controlling the protective sleeve detection module to detect whether the wireless communication equipment is sleeved with a protective sleeve or not;
the second control module is used for controlling the protective sleeve detection module to send a first switching signal when the wireless communication equipment is not sleeved with a protective sleeve, and triggering the switching module to switch on the electric connection between the radio frequency module and the first antenna corresponding to the radio frequency module when receiving the first switching signal;
the third control module is used for controlling the protective sleeve detection module to send a second switching signal when the wireless communication equipment is sleeved with a protective sleeve, and triggering the switching module to disconnect the electric connection between the radio frequency module and the first antenna corresponding to the radio frequency module and to connect the electric connection between the radio frequency module and the second antenna corresponding to the radio frequency module when the switching module receives the second switching signal;
the fourth control module is used for controlling the frequency detection module to detect the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module;
the fifth control module is used for controlling the frequency detection module to send out a third switching signal when the frequency of the communication signal transmitted by the second antenna corresponding to the radio frequency module is less than the working frequency of the first antenna corresponding to the radio frequency module;
and the sixth control module is used for controlling the switching module to disconnect the electrical connection between the radio frequency module and the second antenna corresponding to the radio frequency module and sequentially connect the electrical connection between the radio frequency module and each third antenna corresponding to the radio frequency module when receiving the third switching signal until the frequency of a communication signal transmitted by the third antenna electrically connected with the radio frequency module is greater than or equal to the working frequency of the first antenna corresponding to the radio frequency module.
9. A wireless communication device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method of claim 7 when executing the computer program.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106453839A (en) * 2016-09-12 2017-02-22 广东欧珀移动通信有限公司 Antenna adjusting method and mobile terminal
CN107342464A (en) * 2017-06-30 2017-11-10 努比亚技术有限公司 Mobile terminal, antenna assembly and antenna switching method
US10103425B2 (en) * 2016-06-14 2018-10-16 Compal Electronics, Inc. Mobile device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104579375B (en) * 2013-10-22 2018-10-30 深圳富泰宏精密工业有限公司 Wireless communication device
CN105024714A (en) * 2014-04-23 2015-11-04 联想移动通信科技有限公司 Terminal antenna performance enhancement method, device and terminal
CN107277912B (en) * 2017-05-31 2020-03-10 Oppo广东移动通信有限公司 Radio frequency interference processing method, device, storage medium and terminal
CN108055410A (en) * 2017-12-29 2018-05-18 广东欧珀移动通信有限公司 Antenna switching circuit, antenna switching method and electronic device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10103425B2 (en) * 2016-06-14 2018-10-16 Compal Electronics, Inc. Mobile device
CN106453839A (en) * 2016-09-12 2017-02-22 广东欧珀移动通信有限公司 Antenna adjusting method and mobile terminal
CN107342464A (en) * 2017-06-30 2017-11-10 努比亚技术有限公司 Mobile terminal, antenna assembly and antenna switching method

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