CN110166102A - The switching method and device of WiFi antenna - Google Patents
The switching method and device of WiFi antenna Download PDFInfo
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- CN110166102A CN110166102A CN201910453602.5A CN201910453602A CN110166102A CN 110166102 A CN110166102 A CN 110166102A CN 201910453602 A CN201910453602 A CN 201910453602A CN 110166102 A CN110166102 A CN 110166102A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity 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
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity 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
- H04B7/0608—Antenna selection according to transmission parameters
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the present application discloses the switching method and device of a kind of WiFi antenna, this method comprises: being scanned after starting WiFi communication module using the first WiFi antenna, determines the access point AP connecting with the first WiFi antenna；Detect the first received signal strength indicator RSSI for the AP connecting with the first WiFi antenna；If the first RSSI is lower than the first preset signal strength threshold value, the 2nd RSSI of the AP of the 2nd WiFi antenna connection is detected；RSSI difference is calculated based on the first RSSI and the 2nd RSSI；If the RSSI difference is greater than the second preset signal strength threshold value, the currently used WiFi antenna of the WiFi communication module is switched into the 2nd WiFi antenna from the first WiFi antenna.The embodiment of the present application can promote WiFi signal quality.
Description
Technical field
This application involves fields of communication technology, and in particular to a kind of switching method and device of WiFi antenna.
Background technique
Currently, the WiFi antenna of the mobile terminals such as mobile phone is designed using single antenna, in certain scenes (for example, playing sports ground
Scape sees video scene) under, the hand of user is easy to hold the position where WiFi antenna.And WIFI antenna is once held by hand,
WIFI signal often will appear very big decaying, cause WiFi signal second-rate.
Summary of the invention
The embodiment of the present application provides the switching method and device of a kind of WiFi antenna, can promote WiFi signal quality.
In a first aspect, the embodiment of the present application provides a kind of switching method of WiFi antenna, the method is applied to include the
The WiFi communication module of one WiFi antenna and the 2nd WiFi antenna, which comprises
Step A1: it after starting WiFi communication module, is scanned, is determined and described first using the first WiFi antenna
The access point AP of WiFi antenna connection；
Step A2: the first received signal strength indicator RSSI for the AP that detection is connect with the first WiFi antenna；
Step A3: it if the first RSSI is lower than the first preset signal strength threshold value, detects the 2nd WiFi antenna and connects
The 2nd RSSI of the AP connect；
Step A4: RSSI difference is calculated based on the first RSSI and the 2nd RSSI；
Step A5: if the RSSI difference is greater than the second preset signal strength threshold value, the WiFi communication module is current
The WiFi antenna used switches to the 2nd WiFi antenna from the first WiFi antenna.
Second aspect, the embodiment of the present application provide a kind of switching device of WiFi antenna, described device be applied to include
The WiFi communication module of first WiFi antenna and the 2nd WiFi antenna, described device include:
Scanning element is scanned after starting WiFi communication module using the first WiFi antenna,
Determination unit, for determining the access point AP connecting with the first WiFi antenna；
Detection unit, for detecting the first received signal strength indicator for the AP connecting with the first WiFi antenna
RSSI；
The detection unit is also used to detect that the first RSSI is strong lower than the first preset signals when the detection unit
Threshold value is spent, the 2nd RSSI of the AP of the 2nd WiFi antenna connection is detected；
Computing unit, for calculating RSSI difference based on the first RSSI and the 2nd RSSI；
Antenna switching unit leads to the WiFi for being greater than the second preset signal strength threshold value in the RSSI difference
The currently used WiFi antenna of letter module switches to the 2nd WiFi antenna from the first WiFi antenna.
The third aspect, the embodiment of the present application provide a kind of WiFi communication module, and the WiFi communication module includes that radio frequency is received
Send out chip, filter, combiner, switching switch, the first WiFi antenna and the 2nd WiFi antenna, in which:
First transmitting-receiving port of the rf chip connects the first end of the filter, the rf chip
The first transmitting-receiving port connect the first input port of the combiner；The second end of the filter connects the combiner
Second input port, the output port of the combiner connect the fixed port of the switching switch, and the switching switch moves
End, the first non-moving end of the switching switch connect the first WiFi antenna, the second non-moving end connection of the switching switch
The 2nd WiFi antenna；
After starting the WiFi communication module, the rf chip controls the moved end and described the of the switching switch
The connection of one non-moving end, is scanned using the first WiFi antenna, determines the access point connecting with the first WiFi antenna
AP；
The first of the AP being connect by rf chip detection with the first WiFi antenna receives signal
Intensity indicates RSSI；
If the first RSSI is lower than the first preset signal strength threshold value, the rf chip detection described second
The 2nd RSSI of the AP of WiFi antenna connection；
The rf chip is based on the first RSSI and the 2nd RSSI and calculates RSSI difference；
If the RSSI difference is greater than the second preset signal strength threshold value, the rf chip control switching is opened
The moved end of pass is connect with second non-moving end, by the currently used WiFi antenna of the WiFi communication module from described first
WiFi antenna switches to the 2nd WiFi antenna.
Fourth aspect, the embodiment of the present application provide a kind of mobile terminal, including processor, memory, and the memory is used
In storing one or more programs, one or more of programs are configured to be executed by the processor, and above procedure includes
For executing the instruction of the step in the embodiment of the present application first aspect.
5th aspect, the embodiment of the present application provide a kind of computer readable storage medium, wherein above-mentioned computer-readable
Storage medium storage is used for the computer program of electronic data interchange, wherein above-mentioned computer program executes computer such as
Step some or all of described in the embodiment of the present application first aspect.
6th aspect, the embodiment of the present application provide a kind of computer program product, wherein above-mentioned computer program product
Non-transient computer readable storage medium including storing computer program, above-mentioned computer program are operable to make to calculate
Machine executes the step some or all of as described in the embodiment of the present application first aspect.The computer program product can be one
A software installation packet.
As can be seen that the switching method of WiFi antenna described in the embodiment of the present application, specifically comprises the following steps: to open
It after dynamic WiFi communication module, is scanned using the first WiFi antenna, determines the access point AP connecting with the first WiFi antenna；Inspection
Survey the first received signal strength indicator RSSI for the AP connecting with the first WiFi antenna；If the first RSSI is lower than the first preset signals
Intensity threshold, the 2nd RSSI of the AP of detection the 2nd WiFi antenna connection；It is poor that RSSI is calculated based on the first RSSI and the 2nd RSSI
Value；If RSSI difference is greater than the second preset signal strength threshold value, by the currently used WiFi antenna of WiFi communication module from first
WiFi antenna switches to the 2nd WiFi antenna.Implement the embodiment of the present application, by the way that two WiFi antenna (the first WiFi antennas are arranged
With the 2nd WiFi antenna), it can be decided whether according to the received signal strength indicator RSSI of two WiFi antennas at two
It is switched between WiFi antenna, in the case where holding scene, if a WiFi antenna is held extremely, another can be switched in time
WiFi antenna, to promote WiFi signal quality.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 a is a kind of structural schematic diagram of WiFi communication module disclosed in the embodiment of the present application；
Fig. 1 b is the first WiFi antenna of one kind and the 2nd WiFi antenna disclosed in the embodiment of the present application in the position of mobile terminal
Set relation schematic diagram；
Fig. 2 is a kind of flow diagram of the switching method of WiFi antenna disclosed in the embodiment of the present application；
Fig. 3 is the flow diagram of the switching method of another kind WiFi antenna disclosed in the embodiment of the present application；
Fig. 4 is the flow diagram of the switching method of another kind WiFi antenna disclosed in the embodiment of the present application；
Fig. 5 is a kind of structural schematic diagram of the switching device of WiFi antenna disclosed in the embodiment of the present application；
Fig. 6 is a kind of structural schematic diagram of mobile terminal disclosed in the embodiment of the present application.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first " in above-mentioned attached drawing, " second " etc. are for distinguishing
Different objects, are not use to describe a particular order.In addition, term " includes " and " having " and their any deformations, it is intended that
It is to cover and non-exclusive includes.Such as the process, method, system, product or equipment for containing a series of steps or units do not have
It is defined in listed step or unit, but optionally further comprising the step of not listing or unit, or optionally also wrap
Include other step or units intrinsic for these process, methods, product or equipment.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Mobile terminal involved by the embodiment of the present application may include the various handheld devices with wireless communication function,
Mobile unit, wearable device calculate equipment or are connected to other processing equipments and various forms of radio modem
User equipment (User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal
Device) etc..For convenience of description, apparatus mentioned above is referred to as mobile terminal.
It describes in detail below to the embodiment of the present application.
Fig. 1 a is please referred to, Fig. 1 a is a kind of structural schematic diagram of WiFi communication module disclosed in the embodiment of the present application.Such as figure
Shown in 1a, which includes rf chip 11, filter 12, combiner 13, switching switch 14, first
WiFi antenna 15 and the 2nd WiFi antenna 16.As shown in Figure 1a, the first transmitting-receiving port of rf chip 11 connects filter
12 first end, the first input port of the second transmitting-receiving port connection combiner 13 of rf chip 11；Filter 12
Second end connects the second input port of combiner 13, the moved end of the output port connection switching switch 14 of combiner 13, switching
First non-moving end of switch 14 connects the first WiFi antenna 15, and the second non-moving end of switching switch 14 connects the 2nd WiFi antenna
16；
After starting WiFi communication module 100, the moved end and the first non-moving end of the control switching switch 14 of rf chip 11
Connection, is scanned using the first WiFi antenna 15, determines the access point AP connecting with the first WiFi antenna 15；
The first received signal strength indicator for the AP connecting with the first WiFi antenna 15 is detected by rf chip 11
RSSI；
If the first RSSI is lower than the first preset signal strength threshold value, the detection of rf chip 11 and the 2nd WiFi antenna 16
The 2nd RSSI of the AP of connection；
Rf chip 11 is based on the first RSSI and the 2nd RSSI and calculates RSSI difference；
If RSSI difference is greater than the second preset signal strength threshold value, the moved end of the control switching switch 14 of rf chip 11
It is connect with the second non-moving end, the currently used WiFi antenna of WiFi communication module is switched to second from the first WiFi antenna 15
WiFi antenna 16.
Wherein, the first transmitting-receiving port of rf chip 11 is used to emit or receive the WiFi signal of 2.4G frequency range, penetrates
Second transmitting-receiving port of frequency transceiving chip 11 is used to emit or receive the WiFi signal of 5G frequency range.Switching switch 14 can be hilted broadsword
Double-throw (Single Pole Double Throw, SP2T) switch.
Rf chip 11 can be WiFi chip, for example can be wireless connection (Wireless
Connectivity, WCN) chip, filter 12 can be SAW filter (surface acoustic wave,
SAW).In first WiFi antenna 15 and the 2nd WiFi antenna 16, one is primary antenna, another is slave antenna.Primary antenna is normal
Use antenna.It should be noted that the first WiFi antenna 15 and the 2nd WiFi antenna 16 are the day received and dispatched dedicated for WiFi signal
Line is not used in the transmitting-receiving of other radiofrequency signals.
As shown in Figure 1a, WiFi (also referred to as WIFI) access (2.4G access and 5G access) is after combiner 13, using cutting
Changing switch 14 (for example, SP2T is switched) can be in two WiFi antennas (the first WiFi antenna 15 and the 2nd WiFi by radio frequency path
Antenna 16) between switch over.
Wherein, the position of mobile terminal is arranged in the first WiFi antenna 15 and the 2nd WiFi antenna 16 is arranged in mobile terminal
The distance between position be greater than pre-determined distance threshold value.That is, the first WiFi antenna 15 and the 2nd WiFi antenna 16 be not close to
Setting.For example, Fig. 1 b is please referred to, Fig. 1 b is the first WiFi antenna of one kind disclosed in the embodiment of the present application and the 2nd WiFi days
Positional diagram of the line in mobile terminal.Fig. 1 b shows the first WiFi antenna and the 2nd WiFi antenna in mobile terminal
9 kinds of different positional relationships.As shown in Figure 1 b, the first WiFi antenna and the 2nd WiFi antenna can be set mobile terminal not
Same position.The position of first WiFi antenna and the 2nd WiFi antenna is set according to positional relationship shown in Fig. 1 b, it can be
After one of them in one WiFi antenna and the 2nd WiFi antenna is held by the hand of user, the signal quality of another WiFi antenna
It is unaffected.
It, can be between two WIFI antennas by WIFI access by increasing a RF switch on WIFI radio frequency path
It switches over.The two general antennas are distributed in the both sides on mobile phone top, in the case where holding scene, if a WiFi antenna is held
Extremely, another WiFi antenna can be switched in time, to promote WiFi signal quality.And for multiple-input and multiple-output
For (Multiple-Input Multiple-Output, MIMO) design, the scheme cost of the application has more advantage, because
MIMO needs support two WIFI accesses, and chip needs two sets of conversion paths, price itself can be than expensive one times of single WIFI chip
More than, two filters are also required on radio frequency path to support, therefore entire bill of materials (Bill of Material, BOM)
Cost can be higher.Therefore the program is a kind of most suitable selection for middle terminal and time flagship machine, only needs to increase in cost
Add a SP2T switch, compared with MIMO scheme, cost can be lower.
Based on WiFi communication module shown in Fig. 1 a, a kind of switching method of WiFi antenna is disclosed.Referring to Fig. 2, Fig. 2
It is a kind of flow diagram of the switching method of WiFi antenna disclosed in the embodiment of the present application, as shown in Fig. 2, the WiFi antenna
Switching method includes the following steps.
201, it after mobile terminal starts WiFi communication module, is scanned, is determined and first using the first WiFi antenna
The access point AP of WiFi antenna connection.
In the embodiment of the present application, after starting WiFi communication module, the rf chip in WiFi communication module can be selected
It selects and is scanned using the first WiFi antenna or the 2nd WiFi antenna.For example, preferentially primary antenna can be selected to be scanned.If
Primary antenna is the first WiFi antenna, then can choose the first WiFi antenna and be scanned.Near first WiFi antenna can scan
Available access point (Access Point, AP), and the suitable AP of (manually or automatically) selection is connect with the first WiFi antenna.
202, the first received signal strength indicator RSSI for the AP that mobile terminal detection is connect with the first WiFi antenna.
In the embodiment of the present application, mobile terminal can periodically execute step 202.And it is determined according to the result of detection
Whether step 203 is executed.If the first RSSI of detection is lower than the first preset signal strength threshold value, show the first WiFi antenna
Signal quality is poor, is unable to satisfy the quality requirement of the current WiFi signal of user, thens follow the steps 203.If the of detection
One RSSI is greater than or equal to the first preset signal strength threshold value, shows that the signal quality of the first WiFi antenna is preferable, can satisfy
The quality requirement of the current WiFi signal of user, then can continue to execute step 202.
Optionally, step 202 can specifically include following steps:
Step (11), mobile terminal receive the radio frames that the AP connecting with the first WiFi antenna is sent；
Step (12), mobile terminal calculate the first instantaneous RSSI of the AP of the first WiFi antenna connection based on radio frames；
Step (13), mobile terminal repeat n times above-mentioned steps (11) to step (12), acquisition for mobile terminal N number of first wink
When RSSI, seek the N number of first instantaneous RSSI average value be the first RSSI, N is positive integer.
In the embodiment of the present application, mobile terminal can be repeatedly calculated by asking by repeatedly calculating the first instantaneous RSSI
The average value of first instantaneous RSSI is to obtain more accurate first RSSI.It avoids due to AP jitter or measured deviation
Caused by the first rssi measurement result inaccuracy situation.The accuracy of the measurement result of the first RSSI can be improved.
203, if the first RSSI is lower than the first preset signal strength threshold value, mobile terminal detects the connection of the 2nd WiFi antenna
The 2nd RSSI of above-mentioned AP.
Wherein, the first preset signal strength threshold value can be set in advance and be stored in the memory (ratio of mobile terminal
Such as, nonvolatile memory) in.Optionally, the first preset signal strength threshold value can currently run (ratio according to mobile terminal
Such as, front stage operation) application program determine.The quality of the WiFi signal as required for different application programs is variant,
Therefore, required minimum signal strength threshold is also not quite similar.For example, when game class is applied and video class application is run,
It is higher to the minimum requirements of the quality of WiFi signal, it is lower to the quality requirement of WiFi signal in the operation of instant communication applications.
Before executing step 203, the available currently running application program of mobile terminal, and according to application program with
The corresponding relationship of preset signal strength threshold value determines the first preset signal strength threshold corresponding with currently running application program
Value.Then step 203 is executed again.
It should be noted that mobile terminal detect the 2nd WiFi antenna connection above-mentioned AP two RSSI when, need by
Of short duration switch to after the 2nd WiFi antenna from the first WiFi antenna of the currently used WiFi antenna of WiFi communication module carries out again
WiFi communication module currently used WiFi antenna after measurement finishes, and can be switched to the from the 2nd WiFi antenna by measurement
One WiFi antenna still carries out the transmitting-receiving of WiFi signal using the first WiFi antenna.
Optionally, in step 203, mobile terminal detects the 2nd RSSI of the above-mentioned AP of the 2nd WiFi antenna connection, specifically
Can further include following steps:
(21), the currently used WiFi antenna of WiFi communication module is switched to second from the first WiFi antenna by mobile terminal
WiFi antenna；
(22), in the case where the 2nd WiFi antenna connects AP, mobile terminal sends signal quality measured data packet to AP,
It receives AP and is directed to the confirmation data packet that signal quality measured data packet returns；
(23), mobile terminal calculates the second instantaneous RSSI of the AP of the 2nd WiFi antenna connection based on confirmation data packet；
(24), the currently used WiFi antenna of WiFi communication module is switched to first from the 2nd WiFi antenna by mobile terminal
WiFi switches antenna；
(25), mobile terminal repeats n times above-mentioned steps (21) to step (24), obtains N number of second instantaneous RSSI, seeks N
The average value of a second instantaneous RSSI determines that the average value of the N number of second instantaneous RSSI is the 2nd RSSI, and N is positive integer.
Wherein, signal quality measured data packet can be null-data packet.
In the embodiment of the present application, the second instantaneous RSSI is measured every time, mobile terminal requires WiFi communication module is current
The WiFi antenna used switches to the 2nd WiFi antenna from the first WiFi antenna, after measurement, then switches back.Due to entire
Measurement process only needs several milliseconds, and user terminal is almost noninductive.Mobile terminal can be passed through by repeatedly calculating the second instantaneous RSSI
The average value of the repeatedly calculate second instantaneous RSSI is sought to obtain more accurate 2nd RSSI.It avoids due to AP jitter
Or the situation of the second rssi measurement result inaccuracy caused by measured deviation.The standard of the measurement result of the 2nd RSSI can be improved
True property.
Optionally, mobile to obtain N number of second instantaneous RSSI in step (25), seek the average value of the N number of second instantaneous RSSI
Later, following steps can also be performed:
(31), mobile terminal seeks the variance of the N number of second instantaneous RSSI；
(32), if the variance of N number of second instantaneous RSSI is less than default variance threshold values, mobile terminal execution determines N number of
The step of average value of second instantaneous RSSI is two RSSI；
(33), if the variance of N number of second instantaneous RSSI is greater than or equal to default variance threshold values, mobile terminal, which determines, to be surveyed
2nd RSSI of amount is invalid measurement, and mobile terminal re-measures the 2nd RSSI of the 2nd WiFi antenna.
In the embodiment of the present application, default variance threshold values can be set in advance and be stored in the memory of mobile terminal
In (for example, nonvolatile memory).The embodiment of the present application is only less than default variance threshold values in the variance of the N number of second instantaneous RSSI
In the case where, using the average value of the N number of second instantaneous RSSI as the 2nd RSSI.That is, only in the signal quality of the 2nd WiFi antenna
In the case where relatively stable, just using the average value measured as effective 2nd RSSI, otherwise, if the average value fluctuation measured
It is larger, then show that larger fluctuation occurs in measurement process in the signal quality of the 2nd WiFi antenna, it is believed that the 2nd RSSI measured
For invalid value.The 2nd RSSI that measurement can be avoided the occurrence of occurs fluctuating larger situation, prevents from subsequent switching to the 2nd WiFi
After antenna, there is larger fluctuation in the signal quality of the 2nd WiFi antenna.
204, mobile terminal is based on the first RSSI and the 2nd RSSI and calculates RSSI difference.
In the embodiment of the present application, mobile terminal is based on the first RSSI and the 2nd RSSI calculating RSSI difference and is specifically as follows:
The value of first RSSI is subtracted the value of the 2nd RSSI by mobile terminal, obtains RSSI difference.RSSI difference is for reflecting the first WiFi
The signal quality difference of antenna and the 2nd WiFi antenna, difference is bigger, shows the signal quality of the 2nd WiFi antenna than first
The signal quality of WiFi antenna will be good it is more.Its difference is smaller, shows the signal quality and the first WiFi of the 2nd WiFi antenna
The signal quality difference of antenna is smaller.Its difference shows that the signal quality of the 2nd WiFi antenna is less than if it is negative value
The signal quality of one WiFi antenna.
205, if RSSI difference is greater than the second preset signal strength threshold value, mobile terminal is currently used by WiFi communication module
WiFi antenna switch to the 2nd WiFi antenna from the first WiFi antenna.
In the embodiment of the present application, if RSSI difference is greater than the second preset signal strength threshold value, show the 2nd WiFi antenna
Signal quality to be got well more than the signal quality of the first WiFi antenna, then mobile terminal can carry out the switching of WiFi antenna, will
The currently used WiFi antenna of WiFi communication module switches to the 2nd WiFi antenna from the first WiFi antenna.
Second preset signal strength threshold value can be set in advance and be stored in the memory of mobile terminal (for example, non-
Volatile memory) in.It should be noted that the second preset signal strength threshold value cannot be arranged it is too small, to prevent from appearing in
The case where switching (being referred to as " pingpang handoff ") between one WiFi antenna and the 2nd WiFi antenna repeatedly.
Above-mentioned steps 201 to step 205 is the switching flow that the 2nd WiFi antenna is switched to from the first WiFi antenna.From
The switching flow that two WiFi antennas switch to the first WiFi antenna is similar to step 205 with above-mentioned steps 201, no longer superfluous herein
It states.
Implement the embodiment of the present application, it, can by the way that two WiFi antennas (the first WiFi antenna and the 2nd WiFi antenna) are arranged
To be decided whether to switch between two WiFi antennas according to the received signal strength indicator RSSI of two WiFi antennas,
In the case where holding scene, if a WiFi antenna is held extremely, another WiFi antenna can be switched in time, to promote WiFi
Signal quality.
Referring to Fig. 3, Fig. 3 is the process signal of the switching method of another kind WiFi antenna disclosed in the embodiment of the present application
Figure, Fig. 3 is advanced optimized on the basis of Fig. 2.As shown in figure 3, the switching method of the WiFi antenna includes as follows
Step.
301, it after mobile terminal starts WiFi communication module, is scanned, is determined and first using the first WiFi antenna
The access point AP of WiFi antenna connection.
302, the first received signal strength indicator RSSI for the AP that mobile terminal detection is connect with the first WiFi antenna.
303, if the first RSSI is lower than the first preset signal strength threshold value, mobile terminal detects the connection of the 2nd WiFi antenna
The 2nd RSSI of above-mentioned AP.
Wherein, step 301 is to the specific implementation step 201 shown in Figure 2 of step 303 to step 203, herein not
It repeats again.
304, mobile terminal calculates the difference of the 2nd RSSI and the first RSSI, obtains the instantaneous difference of RSSI.
305, mobile terminal repeats M above-mentioned steps 302 to step 304, obtains the instantaneous difference of M RSSI, seeks M
The average value of the instantaneous difference of RSSI determines that the average value of the instantaneous difference of M RSSI is RSSI difference.
In the embodiment of the present application, M can be the positive integer more than or equal to 2.Mobile terminal can be by repeatedly calculating
The instantaneous difference of RSSI, by seeking the average value of the instantaneous difference of the RSSI repeatedly calculated to obtain more accurate RSSI difference.It keeps away
Exempt from the WiFi antenna as caused by AP jitter or measured deviation and misses handover event.The switching of WiFi antenna can be improved
Reliability.
306, if RSSI difference is greater than the second preset signal strength threshold value, mobile terminal is currently used by WiFi communication module
WiFi antenna switch to the 2nd WiFi antenna from the first WiFi antenna.
Wherein, the specific implementation of step 306 step 205 shown in Figure 2, details are not described herein again.
Implement the embodiment of the present application, it, can by the way that two WiFi antennas (the first WiFi antenna and the 2nd WiFi antenna) are arranged
To be decided whether to switch between two WiFi antennas according to the received signal strength indicator RSSI of two WiFi antennas,
In the case where holding scene, if a WiFi antenna is held extremely, another WiFi antenna can be switched in time, to promote WiFi
Signal quality.It can be kept away by asking the average value of the instantaneous difference of the RSSI repeatedly calculated to obtain more accurate RSSI difference
Exempt from the WiFi antenna as caused by AP jitter or measured deviation and miss handover event, the switching of WiFi antenna can be improved
Reliability.
Referring to Fig. 4, Fig. 4 is the process signal of the switching method of another kind WiFi antenna disclosed in the embodiment of the present application
Figure, Fig. 4 is advanced optimized on the basis of Fig. 2.As shown in figure 4, the switching method of the WiFi antenna includes as follows
Step.
401, it after mobile terminal starts WiFi communication module, is scanned, is determined and first using the first WiFi antenna
The access point AP of WiFi antenna connection.
402, the first received signal strength indicator RSSI for the AP that mobile terminal detection is connect with the first WiFi antenna.
403, if the first RSSI is lower than the first preset signal strength threshold value, mobile terminal detects the connection of the 2nd WiFi antenna
The 2nd RSSI of above-mentioned AP.
Wherein, step 401 is to the specific implementation step 201 shown in Figure 2 of step 403 to step 203, herein not
It repeats again.
404, mobile terminal calculates the difference of the 2nd RSSI and the first RSSI, obtains the instantaneous difference of RSSI.
405, mobile terminal repeats M above-mentioned steps 402 to step 404, obtains the instantaneous difference of M RSSI, determines M
Minimum value in the instantaneous difference of RSSI is RSSI difference.
406, if RSSI difference is greater than the second preset signal strength threshold value, mobile terminal is currently used by WiFi communication module
WiFi antenna switch to the 2nd WiFi antenna from the first WiFi antenna.
In the embodiment of the present application, after mobile terminal obtains the instantaneous difference of M RSSI, by the instantaneous difference of M RSSI most
Small value is used as RSSI difference, if minimum value is both greater than the second preset signal strength threshold value, shows that M difference all meets switching item
Part.If minimum value less than the second preset signal strength threshold value, shows there are the feelings for being unsatisfactory for switching condition in M difference
Condition then needs to continue to measure RSSI difference, it can be ensured that the signal quality difference of two WiFi antennas is in lasting a period of time
The switching that WiFi antenna is inside realized in all biggish situation, can prevent the case where WiFi antenna accidentally switches as far as possible.
Wherein, the specific implementation of step 406 step 205 shown in Figure 2, details are not described herein again.
Implement the embodiment of the present application, it, can by the way that two WiFi antennas (the first WiFi antenna and the 2nd WiFi antenna) are arranged
To be decided whether to switch between two WiFi antennas according to the received signal strength indicator RSSI of two WiFi antennas,
In the case where holding scene, if a WiFi antenna is held extremely, another WiFi antenna can be switched in time, to promote WiFi
Signal quality.It may insure that the signal quality difference of two WiFi antennas is real in all biggish situation within lasting a period of time
The switching of existing WiFi antenna, can prevent the case where WiFi antenna accidentally switches as far as possible.
It is above-mentioned that mainly the scheme of the embodiment of the present application is described from the angle of method side implementation procedure.It is understood that
, in order to realize the above functions, it comprises execute the corresponding hardware configuration of each function and/or software mould for mobile terminal
Block.Those skilled in the art should be readily appreciated that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, the present invention can be realized with the combining form of hardware or hardware and computer software.Some function actually with
Hardware or computer software drive the mode of hardware to execute, the specific application and design constraint item depending on technical solution
Part.Professional technician can specifically realize described function to each using distinct methods, but this reality
Now it should not be considered as beyond the scope of the present invention.
The embodiment of the present application can carry out the division of functional unit according to above method example to mobile terminal, for example, can
With each functional unit of each function division of correspondence, two or more functions can also be integrated in a processing unit
In.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.It needs
It is noted that be schematical, only a kind of logical function partition to the division of unit in the embodiment of the present application, it is practical real
It is current that there may be another division manner.
Referring to Fig. 5, Fig. 5 is a kind of structural schematic diagram of the switching device of WiFi antenna disclosed in the embodiment of the present application.
As shown in figure 5, the switching device 500 of the WiFi antenna includes:
Scanning element 501 is scanned after starting WiFi communication module using the first WiFi antenna；
Determination unit 502, for determining the access point AP connecting with the first WiFi antenna；
Detection unit 503, for detecting the first received signal strength for the AP connecting with the first WiFi antenna
Indicate RSSI；
The detection unit 503 is also used to detect the first RSSI lower than the first default letter when the detection unit
Number intensity threshold detects the 2nd RSSI of the AP of the 2nd WiFi antenna connection；
Computing unit 504, for calculating RSSI difference based on the first RSSI and the 2nd RSSI；
Antenna switching unit 505, for being greater than the second preset signal strength threshold value in the RSSI difference, by the WiFi
The currently used WiFi antenna of communication module switches to the 2nd WiFi antenna from the first WiFi antenna.
Optionally, the detection unit 503 detects the first reception letter for the AP connecting with the first WiFi antenna
Number intensity indicates RSSI, specifically: step B1: receive the radio frames for the AP transmission connecting with the first WiFi antenna；
Step B2: the first instantaneous RSSI of the AP of the first WiFi antenna connection is calculated based on the radio frames；It repeats in n times
It states step B1 to step B2, obtains N number of first instantaneous RSSI, the average value for seeking N number of first instantaneous RSSI is described the
One RSSI, N are positive integer.
Optionally, the detection unit 503 detects the 2nd RSSI of the AP of the 2nd WiFi antenna connection, specifically
Are as follows: the currently used WiFi antenna of the WiFi communication module step C1: is switched to described from the first WiFi antenna
Two WiFi antennas；Step C2: in the case where the 2nd WiFi antenna connects the AP, Xiang Suoshu AP sends signal quality and surveys
Data packet is measured, the confirmation data packet that the AP is returned for the signal quality measured data packet is received；Step C3: based on described
Confirmation data packet calculates the second instantaneous RSSI of the AP of the 2nd WiFi antenna connection；Step C4: the WiFi is led to
The currently used WiFi antenna of letter module switches to the first WiFi switching antenna from the 2nd WiFi antenna；Repeat n times
Above-mentioned steps C1 to step C4 obtains N number of second instantaneous RSSI, seeks the average value of N number of second instantaneous RSSI, determine institute
The average value for stating the N number of second instantaneous RSSI is the 2nd RSSI, and N is positive integer.
Optionally, the computing unit 504 is based on the first RSSI and the 2nd RSSI and calculates RSSI difference, specifically
Are as follows: the difference for calculating the 2nd RSSI and the first RSSI obtains the instantaneous difference of RSSI；M above-mentioned steps A2 is repeated to arrive
Step A4 obtains the instantaneous difference of M RSSI, seeks the average value of the instantaneous difference of M RSSI, determines the M RSSI wink
The average value of time difference value is the RSSI difference.
Optionally, the computing unit 504 is based on the first RSSI and the 2nd RSSI and calculates RSSI difference, specifically
Are as follows: the difference for calculating the 2nd RSSI and the first RSSI obtains the instantaneous difference of RSSI；M above-mentioned steps A2 is repeated to arrive
Step A4 obtains the instantaneous difference of M RSSI, determines that the minimum value in the instantaneous difference of M RSSI is the RSSI difference.
The switching device for implementing WiFi antenna shown in fig. 5 passes through two WiFi antennas of setting (the first WiFi antenna and the
Two WiFi antennas), can be decided whether according to the received signal strength indicator RSSI of two WiFi antennas two WiFi days
It is switched between line, in the case where holding scene, if a WiFi antenna is held extremely, another can be switched in time WiFi days
Line, to promote WiFi signal quality.
Referring to Fig. 6, Fig. 6 is a kind of structural schematic diagram of mobile terminal disclosed in the embodiment of the present application.As shown in fig. 6,
The mobile terminal 600 includes processor 601 and memory 602, wherein mobile terminal 600 can also include bus 603, processing
Device 601 and memory 602 can be connected with each other by bus 603, and bus 603 can be Peripheral Component Interconnect standard
(Peripheral Component Interconnect, abbreviation PCI) bus or expanding the industrial standard structure (Extended
Industry Standard Architecture, abbreviation EISA) bus etc..It is total that bus 603 can be divided into address bus, data
Line, control bus etc..Only to be indicated with a thick line in Fig. 6, it is not intended that an only bus or a type convenient for indicating
The bus of type.Wherein, mobile terminal 600 can also include input-output equipment 604, and input-output equipment 604 may include showing
Display screen, such as liquid crystal display.Memory 602 is used to store one or more programs comprising instruction；Processor 601 is for adjusting
With the above-mentioned Fig. 2 of the instruction execution method and step some or all of into Fig. 4 of storage in the memory 602.
Implement mobile terminal shown in fig. 6, passes through two WiFi antennas of setting (the first WiFi antenna and the 2nd WiFi days
Line), can be decided whether according to the received signal strength indicator RSSI of two WiFi antennas between two WiFi antennas into
Row switching, in the case where holding scene, if a WiFi antenna is held extremely, can switch to another WiFi antenna in time, thus
Promote WiFi signal quality.
The embodiment of the present application also provides a kind of computer storage medium, wherein computer storage medium storage is for electricity
The computer program of subdata exchange, it is as any in recorded in above method embodiment which execute computer
A kind of some or all of the switching method of WiFi antenna step.
The embodiment of the present application also provides a kind of computer program product, which includes storing computer
The non-transient computer readable storage medium of program, the computer program are operable to execute computer as the above method is real
Apply some or all of the switching method of any WiFi antenna recorded in example step.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described because
According to the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, and related actions and modules is not necessarily of the invention
It is necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way
It realizes.For example, the apparatus embodiments described above are merely exemplary, such as the division of the unit, it is only a kind of
Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit,
It can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer-readable access to memory.Based on this understanding, technical solution of the present invention substantially or
Person says that all or part of the part that contributes to existing technology or the technical solution can body in the form of software products
Reveal and, which is stored in a memory, including some instructions are used so that a computer equipment
(can be personal computer, server or network equipment etc.) executes all or part of each embodiment the method for the present invention
Step.And memory above-mentioned includes: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), mobile hard disk, magnetic or disk.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can store in a computer-readable memory, memory
May include: flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random access device (English:
Random Access Memory, referred to as: RAM), disk or CD etc..
The embodiment of the present application is described in detail above, specific case used herein to the principle of the present invention and
Embodiment is expounded, and the above description of the embodiment is only used to help understand the method for the present invention and its core ideas；
At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the present invention
There is change place, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of switching method of WiFi antenna, which is characterized in that the method is applied to include the first WiFi antenna and second
The WiFi communication module of WiFi antenna, which comprises
Step A1: it after starting WiFi communication module, is scanned using the first WiFi antenna, determining and the first WiFi
The access point AP of antenna connection；
Step A2: the first received signal strength indicator RSSI for the AP that detection is connect with the first WiFi antenna；
Step A3: if the first RSSI is lower than the first preset signal strength threshold value, the 2nd WiFi antenna connection is detected
The 2nd RSSI of the AP；
Step A4: RSSI difference is calculated based on the first RSSI and the 2nd RSSI；
Step A5: if the RSSI difference is greater than the second preset signal strength threshold value, the WiFi communication module is currently used
WiFi antenna switch to the 2nd WiFi antenna from the first WiFi antenna.
2. the method according to claim 1, wherein it is described detection connect with the first WiFi antenna it is described
The first received signal strength indicator RSSI of AP, comprising:
Step B1: the radio frames that the AP connecting with the first WiFi antenna is sent are received；
Step B2: the first instantaneous RSSI of the AP of the first WiFi antenna connection is calculated based on the radio frames；
N times above-mentioned steps B1 to step B2 is repeated, N number of first instantaneous RSSI is obtained, seeks the flat of N number of first instantaneous RSSI
Mean value is the first RSSI, and N is positive integer.
3. method according to claim 1 or 2, which is characterized in that the institute of detection the 2nd WiFi antenna connection
State the 2nd RSSI of AP, comprising:
Step C1: the currently used WiFi antenna of the WiFi communication module is switched to described from the first WiFi antenna
Two WiFi antennas；
Step C2: in the case where the 2nd WiFi antenna connects the AP, Xiang Suoshu AP sends signal quality measured data
Packet receives the confirmation data packet that the AP is returned for the signal quality measured data packet；
Step C3: the second instantaneous RSSI of the AP of the 2nd WiFi antenna connection is calculated based on the confirmation data packet；
Step C4: the currently used WiFi antenna of the WiFi communication module is switched to described from the 2nd WiFi antenna
One WiFi switches antenna；
N times above-mentioned steps C1 to step C4 is repeated, N number of second instantaneous RSSI is obtained, seeks the flat of N number of second instantaneous RSSI
Mean value determines that the average value of N number of second instantaneous RSSI is the 2nd RSSI, and N is positive integer.
4. described in any item methods according to claim 1~3, which is characterized in that described based on the first RSSI and described
2nd RSSI calculates RSSI difference, comprising:
The difference for calculating the 2nd RSSI and the first RSSI obtains the instantaneous difference of RSSI；
M above-mentioned steps A2 to step A4 is repeated, the instantaneous difference of M RSSI is obtained, seeks the flat of the instantaneous difference of M RSSI
Mean value determines that the average value of the instantaneous difference of M RSSI is the RSSI difference.
5. described in any item methods according to claim 1~3, which is characterized in that described based on the first RSSI and described
2nd RSSI calculates RSSI difference, comprising:
The difference for calculating the 2nd RSSI and the first RSSI obtains the instantaneous difference of RSSI；
M above-mentioned steps A2 to step A4 is repeated, the instantaneous difference of M RSSI is obtained, determines in the instantaneous difference of M RSSI
Minimum value is the RSSI difference.
6. a kind of switching device of WiFi antenna, which is characterized in that described device is applied to include the first WiFi antenna and second
The WiFi communication module of WiFi antenna, described device include:
Scanning element is scanned after starting WiFi communication module using the first WiFi antenna,
Determination unit, for determining the access point AP connecting with the first WiFi antenna；
Detection unit, for detecting the first received signal strength indicator for the AP connecting with the first WiFi antenna
RSSI；
The detection unit is also used to detect the first RSSI lower than the first preset signal strength threshold when the detection unit
Value detects the 2nd RSSI of the AP of the 2nd WiFi antenna connection；
Computing unit, for calculating RSSI difference based on the first RSSI and the 2nd RSSI；
Antenna switching unit, for being greater than the second preset signal strength threshold value in the RSSI difference, by the WiFi communication mould
The currently used WiFi antenna of block switches to the 2nd WiFi antenna from the first WiFi antenna.
7. a kind of WiFi communication module, which is characterized in that the WiFi communication module includes rf chip, filter, conjunction
Road device, switching switch, the first WiFi antenna and the 2nd WiFi antenna, in which:
First transmitting-receiving port of the rf chip connects the first end of the filter, and the of the rf chip
Two transmitting-receiving ports connect the first input port of the combiner；The second end of the filter connects the second of the combiner
Input port, the output port of the combiner connect the moved end of the switching switch, the first non-moving end of the switching switch
The first WiFi antenna is connected, the second non-moving end of the switching switch connects the 2nd WiFi antenna；
After starting the WiFi communication module, the rf chip controls the moved end and described first of the switching switch not
Moved end connection, is scanned using the first WiFi antenna, determines the access point AP connecting with the first WiFi antenna；
Pass through the first received signal strength for the AP that rf chip detection is connect with the first WiFi antenna
Indicate RSSI；
If the first RSSI is lower than the first preset signal strength threshold value, the rf chip detection the described 2nd WiFi days
The 2nd RSSI of the AP of line connection；
The rf chip is based on the first RSSI and the 2nd RSSI and calculates RSSI difference；
If the RSSI difference is greater than the second preset signal strength threshold value, the rf chip controls the switching switch
Moved end is connect with second non-moving end, by the currently used WiFi antenna of the WiFi communication module from the described first WiFi days
Line switches to the 2nd WiFi antenna.
8. WiFi communication module according to claim 7, which is characterized in that the first WiFi antenna setting is mobile whole
The position at end and the 2nd WiFi antenna are greater than pre-determined distance threshold value at a distance from being arranged between the position of mobile terminal.
9. a kind of mobile terminal, which is characterized in that including processor and memory, the memory is for storing one or more
A program, one or more of programs are configured to be executed by the processor, and described program includes for executing such as right
It is required that 1~5 described in any item methods.
10. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium is for storing electron number
According to the computer program of exchange, wherein the computer program executes computer as described in any one of Claims 1 to 5
Method.
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| CN201910453602.5A CN110166102A (en) | 2019-05-28 | 2019-05-28 | The switching method and device of WiFi antenna |
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|---|---|---|---|
| CN201910453602.5A CN110166102A (en) | 2019-05-28 | 2019-05-28 | The switching method and device of WiFi antenna |
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