CN109151936B - Antenna system and network switching method - Google Patents
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- CN109151936B CN109151936B CN201811057549.9A CN201811057549A CN109151936B CN 109151936 B CN109151936 B CN 109151936B CN 201811057549 A CN201811057549 A CN 201811057549A CN 109151936 B CN109151936 B CN 109151936B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000005855 radiation Effects 0.000 description 39
- 238000010168 coupling process Methods 0.000 description 22
- 238000005859 coupling reaction Methods 0.000 description 22
- 230000008878 coupling Effects 0.000 description 21
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0825—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses an antenna system and a network switching method, wherein the antenna system comprises at least two antenna units, each antenna unit at least comprises a main antenna and an auxiliary antenna, at least two network card units respectively corresponding to the antenna units, the main antenna of each antenna unit is connected to the network card unit corresponding to the antenna unit, a switch is used for connecting the auxiliary antenna of each antenna unit to the network card unit corresponding to the antenna unit through the switch, and a control unit is connected with the switch to control the on-off of the signal connection between the auxiliary antenna of each antenna unit and the network card unit corresponding to the auxiliary antenna; compared with the prior art, the antenna system and the network switching method have the advantages that the structure of the antenna system is improved, the outgoing feeders of all the antennas are connected with the embedded controller through the selector switch for control, and the occupied space required by repeatedly setting the feeder circuits is reduced.
Description
Technical Field
The present invention relates to the field of antenna technologies, and in particular, to an antenna system and a network switching method.
Background
As known, wlan (wireless Local Area networks) refers to a wireless Local Area network, which does not need to connect with a physical cable assembly but uses electromagnetic waves to communicate over the air, so as to enable users to have more flexibility and mobility when using the network, compared with a wired network, and is widely applied to many known electronic intelligent devices. Wwan (wireless Wide Area network) refers to a wireless Wide Area network, which enables electronic devices such as notebook computers, tablet computers, etc. to connect to the internet within the coverage of a cellular network.
At present, the network connection function of the WLAN, WWAN, etc. is realized by using a radio frequency antenna on a notebook or 3C type electronic product with a metal shell, and the known antenna has certain requirements on the wireless environment of the notebook, i.e. the radiation or receiving area of the antenna must not have metal. A common solution is to provide a non-metallic plastic area on the metal panel. The arrangement of the nonmetal plastic area can cause the structural strength of the whole notebook shell to be reduced, the deformation degree is difficult to control, the appearance treatment is complex, the yield is reduced, and therefore the problems of cost increase and the like can be caused. However, if the size of the antenna can be controlled to the minimum size for use, the problem caused by the non-metal plastic area is greatly improved. Therefore, the miniaturization design of the antenna is a technical problem which needs to be broken through all the time in the design of the antenna of the electronic product.
However, as the functional requirements of people on electronic products increase, many electronic products need to be provided with various types of antennas to meet different network signal requirements, for example, in the case of mobile phones, it is necessary to be able to receive 2G/3G/4G signals of different operators and also to be able to connect to a wireless local area network, and therefore, a plurality of transceiving antennas corresponding to signals of different frequency bands need to be respectively provided.
It is known that the transceiving frequency of the wireless wide area network is generally between 699MHZ-2690MHZ, and belongs to a low frequency signal band, while the transceiving frequency of the wireless local area network generally has two bands of low frequency (1710MHZ-2690MHZ) and high frequency (5150MHZ-5850MHZ), so that the transceiving frequencies of the wireless local area network and the wireless wide area network are overlapped to some extent, however, in the present electronic product, since the antennas are respectively and correspondingly arranged, a part of the antennas are actually redundant, and a plurality of transceiving antennas are respectively arranged, the size of the antenna will become larger, the occupied space will become larger, and with the appearance of a new 5G network, more network signal antennas with different frequency bands will be placed in the electronic product in the future, so if only by structural design of a single antenna itself, it is difficult to make the antenna become smaller, the arrangement of a plurality of transceiving antennas still occupies a large space, and meanwhile, the conventional antennas are correspondingly arranged, so that corresponding circuits need to be arranged for feeding, the structure is complex, some antennas stop working completely when network types are switched, and the utilization efficiency of the antennas is very low, so that a new solution is urgently needed.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides an antenna system and a network switching method.
In order to achieve the above effect, the antenna system and the network switching method of the present invention adopt the following technical scheme:
an antenna system, comprising:
at least two antenna units, each antenna unit having at least a main antenna and a sub-antenna,
at least two network card units respectively corresponding to the antenna units, wherein the main antenna of each antenna unit is connected to the network card unit corresponding to the antenna unit,
a switch, the secondary antenna of each antenna unit is connected to the corresponding network card unit through the switch, and,
and the control unit is connected with the selector switch to control the on-off of signal connection between the auxiliary antenna of each antenna unit and the corresponding network card unit.
Preferably, the antenna unit includes:
the first antenna unit is a wireless local area network antenna and comprises a first main antenna and a first auxiliary antenna, wherein the first main antenna is an antenna with a signal transmitting and receiving function and is used for monitoring wireless local area network signals in the environment; the first auxiliary antenna is an antenna with a signal receiving function and is used for receiving signals through a wireless local area network;
the second antenna unit is a wireless wide area network antenna and comprises a second main antenna and a second auxiliary antenna, wherein the second main antenna is an antenna with a signal transmitting and receiving function and is used for monitoring wireless wide area network signals in the environment; the second secondary antenna is an antenna with a signal receiving function and is used for receiving signals through a wireless wide area network.
Preferably, the network card unit includes a WLAN network card and a WWAN network card, the WLAN network card corresponds to the first antenna unit, and the WWAN network card corresponds to the second antenna unit.
Preferably, the switch is an electronic switch with the model number BGS12SN 6.
Preferably, the control unit is an embedded controller.
A network handover method, comprising:
detecting network signal characteristics of the current environment;
determining a target network with the highest matching degree with the current environment according to the network signal characteristics;
and switching to the target network.
Preferably, the network signal characteristics include: signal strength, signal class.
Preferably, when only one signal class can be detected in the environment, the network of that class is directly adopted;
when at least two signal types can be detected in the environment, the signal strength of each signal is continuously detected, and the network with the strongest signal strength is switched.
Preferably, the signal categories include: WLAN signals, WWAN signals.
Preferably, before switching to the network with the strongest signal strength, the method further comprises listing the signal type and the signal strength of the currently available network signal to the terminal, and selecting to switch by the user.
Compared with the prior art, the antenna system and the network switching method have the advantages that the structure of the antenna system is improved, the outgoing feeders of all the antennas are connected with the embedded controller through the change-over switch for control, the occupied space required by repeated arrangement of the feeder circuits is reduced, the cost is reduced, and meanwhile, the method for network switching by combining the software and hardware layers is provided.
Drawings
FIG. 1 is a block diagram of a system architecture of an embodiment of the present invention;
FIG. 2 is a block diagram of a diverter switch according to an embodiment of the present invention;
FIG. 3 is a flowchart of a network handover method according to an embodiment of the present invention;
FIG. 4 is a flowchart of a network handover method according to an embodiment of the present invention;
fig. 5 is a front view of an antenna employed in the antenna system of the embodiment of the present invention;
FIG. 6 is a rear view of FIG. 5;
fig. 7 is a front view of an antenna employed in the antenna system of the embodiment of the present invention mounted to a base.
Description of reference numerals:
1-first radiating part 11-first feeding-in segment 12-second feeding-in segment 111-first radiating segment 112-second radiating segment 113-third radiating segment 114-fourth radiating segment 115-feeding point 2-first coupling part 21-grounding segment 22-coupling segment 23-grounding point 3-second coupling part 4-base body 5-first antenna unit 51-first main antenna 52-first auxiliary antenna 6-second antenna unit 61-second main antenna 62-second auxiliary antenna 7-switch 8-network card unit 9-control unit.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Referring to fig. 1 to 2, an antenna system according to an embodiment of the present invention is mainly applied to a currently known class 3C product, such as a notebook, a tablet, or a mobile phone intelligent terminal device, and includes: at least two antenna units, at least two network card units 8 corresponding to the antenna units respectively, a switch 7 and a control unit 9.
Each antenna unit in the two antenna units at least has a main antenna and an auxiliary antenna, wherein the main antenna unit is an antenna with a signal receiving and transmitting function, the auxiliary antenna is an antenna with a signal receiving function, and when the main antenna and the auxiliary antenna work simultaneously, one antenna unit can work normally.
Meanwhile, each antenna unit is provided with a network card unit 8 corresponding to the antenna unit, the main antenna of each antenna unit is connected to the network card unit 8 corresponding to the antenna unit, and the network card unit 8 is used for realizing data encapsulation and decapsulation, link pipeline, coding and decoding and the like of signals received and transmitted by the antenna unit corresponding to the antenna unit, so that the intelligent device can establish data connection with a corresponding network through the antenna unit.
The change-over switch 7 is an electronic chip element, the secondary antenna of each antenna unit is connected to the corresponding network card unit 8 through the change-over switch 7, the change-over switch 7 is used as a switch for controlling the operation of each antenna unit, and can control whether to feed the secondary antenna of each antenna unit, when the secondary antenna of a certain antenna unit is not fed, the antenna unit only keeps the function of monitoring the corresponding network signal in the environment, but cannot perform complete network signal transmission operation.
The control unit 9 is connected to the switch 7 to control the connection and disconnection of signals between the secondary antenna of each antenna unit and the corresponding network card unit 8, and may be an embedded controller.
Specifically, the antenna unit may be different types of antennas known at present, for example, an LTE broadband antenna, a 2.4G5 wifi antenna, a 5G antenna, a GPS antenna, and the like, and by performing structural improvement on various antennas, the sub-antennas thereof are all led out and connected to the feeding terminal through a feeder of the switch 7, so that the space occupied by the different antennas for feeding circuit layout is saved, and the size occupied by the antennas is reduced.
Further, the antenna unit of the embodiment of the present invention includes a first antenna unit 5 and a second antenna unit 6.
The first antenna unit 5 is a wireless local area network antenna (WLAN antenna) and includes a first main antenna 51 and a first auxiliary antenna 52, wherein the first main antenna 51 is an antenna with a signal transceiving function and is used for monitoring a wireless local area network signal in an environment; the first secondary antenna 52 is an antenna having a signal receiving function, and is used for receiving signals through a wireless local area network.
The second antenna unit 6 is a wireless wide area network antenna (WWAN antenna) including a second main antenna 61 and a second auxiliary antenna 62, the second main antenna 61 is an antenna with signal transceiving function for monitoring wireless wide area network signals in the environment; the second sub-antenna 62 is an antenna having a signal receiving function, and is used for receiving signals through a wireless wide area network.
Correspondingly, the network card unit 8 includes a WLAN network card and a WWAN network card, the WLAN network card corresponds to the first antenna unit 5, and the WWAN network card corresponds to the second antenna unit 6.
Further, referring to fig. 2, the switch 7 used in the embodiment of the present invention is an electronic switch with model number BGS12SN6, and has an input terminal RFin and bidirectional control switches RF1 and RF2, wherein RF1 and RF2 are respectively connected to the secondary antenna of the first antenna unit 5 and the secondary antenna of the second antenna unit 6.
The embodiment of the present invention further provides an antenna structure embodiment having only one feeding end and capable of satisfying the functions of a WLAN antenna and a WWAN antenna, and referring to fig. 5 to 7, it may include a base 4, a first radiation portion 1, a first coupling portion 2, a ground segment 21, and a second coupling portion 3.
The first radiation part 1 comprises a feed-in section, the feed-in section extends upwards from the bottom edge of the printed circuit board, one end (lower end) of the feed-in section is a feed end, the middle part of the feed-in section respectively extends transversely along two opposite directions (left and right directions) to form a first radiation section 111 and a second radiation section 112, and the other end of the feed-in section opposite to the feed end of the feed-in section respectively extends along two opposite directions (left and right directions) to form a third radiation section 113 and a fourth radiation section 114; in this embodiment, the feeding segments include a first feeding segment 11 and a second feeding segment 12 that are disposed in parallel, feeding points 115 are disposed at the bottom of the first feeding segment 11 and the bottom of the second feeding segment 12, the second radiation segment 112 and the fourth radiation segment 114 are connected to the second feeding segment 12 to form an inverted F antenna structure, the first radiation segment 111 and the third radiation segment 113 are connected to the first feeding segment 11 to form an inverted F antenna structure, and the two inverted F antenna structures are disposed back to form a monopole antenna structure capable of operating in a dual frequency band.
The first coupling portion 2 includes a grounding segment 21 and a coupling segment 22 extending from one end of the grounding segment 21 toward a direction parallel to the third radiation segment 113 and the fourth radiation segment 114 for coupling with each other; in the specific embodiment, as described with reference to fig. 2, the grounding segment 21 of the first coupling portion 2 in the embodiment extends from the middle position of the coupling segment 22 to the system ground plane (not shown) in a zigzag manner from top to bottom, a portion of the coupling segment 22 partially overlaps with the fourth radiation segment 114 to couple with the third radiation segment 113 and the fourth radiation segment 114, and transmits electromagnetic energy on the third radiation segment 113 and the fourth radiation segment 114 to the coupling segment 22, so that the third radiation segment 113, the fourth radiation segment 114 and the coupling segment 22 together form the WWAN antenna capable of operating in multiple frequency bands, specifically, the coupling amount is controlled by controlling the distance between the coupling segment 22 and the fourth radiation segment 114 and the third radiation segment 113, so as to achieve the purpose of adjusting the impedance matching of the antenna.
Based on the antenna structure, the length and width of the third radiation section 113, the fourth radiation section 114 and the coupling section 22 are properly adjusted and designed according to the required operation frequency band, so that the operation frequency band of the antenna of this embodiment can cover LTE (824 MHz-960 MHz, 1710-2170 MHz) and has a WWAN antenna function, specifically, in this embodiment, the radiation frequency band of the coupling section 22 is 699-960 MHz, the radiation frequency band of the third radiation section 113 is 1565 MHz-1675 MHz, and the radiation frequency band of the fourth radiation section 114 is 1710-2170 MHz, thereby meeting the functional requirements of the WWAN antenna.
The second coupling part 3 is disposed on the printed circuit board in parallel to the fourth radiation section 114 to be coupled with each other. Specifically, the length and width of the second coupling portion 3 and the distance between the second coupling portion and the fourth radiation section 114 are properly adjusted and designed, so that the coupling amount is controlled, the purpose of adjusting the impedance matching of the antenna is achieved, the second coupling portion 3 can cover 2300MHz to 2690MHz (2.4Ghz), the first radiation section 111 can cover 2400MHz to 2500MHz (2.4Ghz) by adjusting the first radiation section 111 and the second radiation section 112, and the second radiation section 112 can cover 5150MHz to 5850MHz (5.8 Ghz).
Further, with continuing reference to fig. 5 to 7, in this embodiment, the length of the first radiation section 111 is smaller than the length of the third radiation section 113, and the length of the second radiation section 112 is smaller than the length of the fourth radiation section 114, so as to form a planar inverted F-shaped (PIFA) antenna structure operable in two frequency bands, thereby forming a WLAN antenna capable of meeting the working requirements of the wireless local area network, including 802.11 a/b/g.
Through the structure, the PCB antenna capable of meeting the functional requirements of the WWAN antenna and the WLAN antenna simultaneously is formed only through one feeding end, so that the size of the antenna required by the WWAN antenna and the WLAN antenna due to the frequency band overlapping part is reduced, the space occupied by the whole antenna is reduced, different feeding points do not need to be arranged to control different antennas, and the miniaturization design of the antenna is facilitated.
With continuing reference to fig. 3 to fig. 4, by using the antenna system, an embodiment of the present invention further provides a network switching method, including:
step 1: detecting network signal characteristics of the current environment;
step 2: determining a target network with the highest matching degree with the current environment according to the network signal characteristics;
and step 3: and switching to the target network.
In step 1, the main antenna in each antenna unit of the antenna system in the embodiment of the present invention is used to monitor the network signal characteristics in the environment and transmit the monitoring data to the operating system side through the network card unit 8.
In step 2, a target network with the highest matching degree with the current environment is determined according to the monitored network signal characteristics, for example, when the intelligent terminal device is indoors with both WWAN signals and WLAN signals, if it is determined that the matching degree of the WLAN signals and the current environment is the highest, the WLAN network is determined as the target network.
In step 3, the embedded controller controls the switch 7 to switch on the WLAN signal antenna and the network card unit 8 in the antenna system for feeding, so that the intelligent terminal device can be connected to the WLAN network and perform network data interaction.
Specifically, the network signal characteristics described in the above embodiments include: signal strength, signal category, wherein the signal category in the present embodiment includes: WLAN signals, WWAN signals.
Further, referring to fig. 4, when only one signal class can be detected in the environment, the network of the class is directly adopted; for example, when only WLAN signals or WWAN signals can be detected in the current environment, the network of the category is directly selected and the switch 7 is controlled by the embedded controller to switch to the corresponding signal antenna for feeding.
When at least two signal types can be detected in the environment, the signal strength of each signal is continuously detected, and the network with the strongest signal strength is switched to, for example, when the user just enters the room covered by the WLAN network from the outside, at this time, the WLAN signal in the environment has the WWAN signal at the same time, and the strength of the WLAN signal is greater, the control unit 9 is directly controlled at the operating system level to send an instruction for switching to the WLAN network to the switch 7, and the switch 7 switches the feeding current to the antenna unit for transceiving the WLAN network signal.
Further, before switching to the network with the strongest signal strength, the method further comprises the step of listing the signal types and the signal strengths of the currently available network signals to the terminal, and selecting the network with the strongest signal strength by the user for switching. For example, the list of currently available networks is listed to the user through a pop-up window or a bubble window on the operating system side, and the user selects the network required by the user to switch.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (10)
1. An antenna system, comprising:
at least two antenna units, each antenna unit having at least a main antenna and a sub-antenna,
at least two network card units respectively corresponding to the antenna units, wherein the main antenna of each antenna unit is connected to the network card unit corresponding to the antenna unit,
a switch, the secondary antenna of each antenna unit being connected to the network card unit corresponding thereto through the switch, wherein the switch has bidirectional control switches, each of the bidirectional control switches being connected to the secondary antenna of one of the antenna units, and,
and the control unit is connected with the selector switch to control the on-off of signal connection between the auxiliary antenna of each antenna unit and the corresponding network card unit.
2. The antenna system of claim 1, wherein the antenna unit comprises:
the first antenna unit is a wireless local area network antenna and comprises a first main antenna and a first auxiliary antenna, wherein the first main antenna is an antenna with a signal transmitting and receiving function and is used for monitoring wireless local area network signals in the environment; the first auxiliary antenna is an antenna with a signal receiving function and is used for receiving signals through a wireless local area network;
the second antenna unit is a wireless wide area network antenna and comprises a second main antenna and a second auxiliary antenna, wherein the second main antenna is an antenna with a signal transmitting and receiving function and is used for monitoring wireless wide area network signals in the environment; the second secondary antenna is an antenna with a signal receiving function and is used for receiving signals through a wireless wide area network.
3. The antenna system of claim 2, wherein the network card unit comprises a WLAN network card corresponding to the first antenna unit and a WWAN network card corresponding to the second antenna unit.
4. The antenna system of claim 1, wherein the switch is an electronic switch of type BGS12SN 6.
5. The antenna system of claim 1, wherein the control unit is an embedded controller.
6. A method for network handover, comprising:
detecting a network signal characteristic of a current environment with a primary antenna in each antenna unit of an antenna system according to any one of claims 1 to 5;
determining a target network with the highest matching degree with the current environment according to the network signal characteristics;
and switching to the target network, wherein the control unit of the antenna system controls a switch to switch on a secondary antenna and a network card unit of the antenna unit corresponding to the target network for feeding.
7. The network handover method of claim 6, wherein the network signal characteristics comprise: signal strength, signal class.
8. The network handover method according to claim 7, wherein when only one signal class can be detected in the environment, the network of the class is directly adopted;
when at least two signal types can be detected in the environment, the signal strength of each signal is continuously detected, and the network with the strongest signal strength is switched.
9. The network handover method of claim 8, wherein the signal classes comprise: WLAN signals, WWAN signals.
10. The method of claim 9, further comprising listing the signal type and signal strength of currently available network signals to the terminal and selecting the user to perform handover before handing over to the network with the strongest signal strength.
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| CN201811057549.9A CN109151936B (en) | 2018-09-11 | 2018-09-11 | Antenna system and network switching method |
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| CN201811057549.9A CN109151936B (en) | 2018-09-11 | 2018-09-11 | Antenna system and network switching method |
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| CN109151936B true CN109151936B (en) | 2021-02-09 |
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