CN107612563B - Radio-frequency front-end system, mobile terminal and signal processing method - Google Patents
Radio-frequency front-end system, mobile terminal and signal processing method Download PDFInfo
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- CN107612563B CN107612563B CN201710771739.6A CN201710771739A CN107612563B CN 107612563 B CN107612563 B CN 107612563B CN 201710771739 A CN201710771739 A CN 201710771739A CN 107612563 B CN107612563 B CN 107612563B
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Abstract
The embodiment of the invention discloses a kind of radio-frequency front-end systems, are applied to technical field of mobile terminals, which includes：Antenna master switch, combiner, antenna and multiple branch switch；Antenna master switch integrates mutiple antennas switch；One end of each duplexer is all connected with a branch switch, the sum of Insertion Loss of each branch switch is less than the loss of antenna master switch, and the difference between the sum of Insertion Loss of each branch switch and the loss of antenna master switch is less than default value, each branch switch includes multiple first ends, one of first end is connected with one end of duplexer, the access component for the signal that at least one first end presets frequency range with transmitting-receiving in remaining first end is connected, each second end of branch switch is connected with an input terminal of combiner, and the output end of combiner connects antenna.The embodiment of the invention also discloses a kind of mobile terminal and signal processing methods, can reduce the loss of radio-frequency front-end system.
Description
Technical field
At technical field of mobile terminals more particularly to a kind of radio-frequency front-end system, mobile terminal and signal
Reason method.
Background technology
Radio-frequency front-end is the functional area between the RF transceiver of mobile phone and antenna, mainly by power amplifier,
Low-noise amplifier, switch, duplexer, filter and other passive equipments composition.
In existing radio-frequency front-end, duplexer is switched using two-in-one antenna, and duplexer can be switched on two-way
All the way, intermediate frequency and high frequency are all the way for signal, wherein low frequency.Such two-in-one antenna switch can meet low frequency and intermediate frequency, low frequency and
The carrier wave aggregate combinations of high frequency.But two-in-one antenna switch causes path loss bigger, and specifically, low frequency channel loss
For 0.7db (DECIBEL), intermediate-frequency channel 0.8db, high frequency 1db or so.
Invention content
A kind of radio-frequency front-end system of present invention offer, mobile terminal and signal processing method, exist to solve radio-frequency front-end
Larger problem is lost in antenna master switch in communication process.
First aspect of the embodiment of the present invention provides a kind of radio-frequency front-end system, including：
Antenna master switch, combiner, antenna and multiple branch switch；
The antenna master switch integrates mutiple antennas switch；
One end of each duplexer is all connected with a branch switch, the sum of the Insertion Loss of each branch switch
Less than the loss of the antenna master switch, and between the sum of Insertion Loss of each branch switch and the loss of the antenna master switch
Difference be less than default value；
Each branch switch includes multiple first ends, one of first end and described the one of the duplexer
End is connected, and the access component for the signal that at least one first end presets frequency range with transmitting-receiving in remaining first end is connected；
Each second end of the branch switch is connected with an input terminal of the combiner, the output of the combiner
End connects the antenna.
Second aspect of the embodiment of the present invention provides a kind of mobile terminal, including the radio frequency that first embodiment of the invention provides
Front end system.
The third aspect of the embodiment of the present invention provides a kind of signal processing method, including：Branch switch one of them first
End is connected with one end of duplexer, and the signal of at least one first end and the default frequency range of transmitting-receiving is logical in remaining multiple first end
Road component is connected；
When receiving the signal of communication of upstream or downstream, the frequency range of the signal of communication is confirmed；
If the frequency range of the signal of communication belongs to the frequency range in the default frequency range, the branch switch connection pair is controlled
Answer the access component of the default frequency range so that the signal of communication passes through from corresponding access.
From the embodiments of the present invention it is found that radio-frequency front-end system provided by the invention, mobile terminal and signal processing side
The smaller branch switch of Insertion Loss is connect by method with antenna master switch, which is integrated with mutiple antennas switch, each
One first end of branch switch is connected with one end of a duplexer, remaining first end connection transmitting-receiving of the branch switch
The access component of the signal of default frequency range, the second end of the branch switch are connected on combiner, when the signal for having default frequency range is logical
It is out-of-date, the corresponding access of controlling brancher switch connection so that the signal, which is got around, is lost larger antenna master switch, and via Insertion Loss
Smaller branch switch passes through, and reduces the loss of radio-frequency front-end system.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention.
Fig. 1 is the structural schematic diagram for the radio-frequency front-end system that first embodiment of the invention provides；
Fig. 2 is the structural schematic diagram for the radio-frequency front-end system that second embodiment of the invention provides；
Fig. 3 is the flow diagram for the signal processing method that third embodiment of the invention provides；
Fig. 4 is the flow diagram for the signal processing method that fourth embodiment of the invention provides；
Fig. 5 shows a kind of hardware structure diagram of mobile terminal.
Specific implementation mode
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described reality
It is only a part of the embodiment of the present invention to apply example, and not all embodiments.Based on the embodiments of the present invention, people in the art
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
Radio-frequency front-end system provided in an embodiment of the present invention applied to mobile terminal is in existing radio-frequency front-end system
In antenna master switch after increase with antenna master switch in integrate duplexer corresponding number branch switch, branch switch
Insertion Loss is smaller, and each branch switch has multiple non-moving ends, one of non-moving end to connect corresponding duplexer, remaining is motionless
End connects the signal path of important default frequency range, when the signal of default frequency range by when, by the branch switch without passing through
The duplexer, to reduce the loss of radio-frequency front-end system.
Mobile terminal refers to including mobile phone, PDA (PERSONAL DIGITAL ASSISTANT), laptop etc.
Mobile electronic equipment.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram for the radio-frequency front-end system that first embodiment of the invention provides, this implementation
Radio-frequency front-end system in example may include：Antenna master switch, combiner, antenna and multiple branch switch, in the antenna master switch
It is switched including mutiple antennas, the moved end of each duplexer is all connected with a branch switch, and the sum of Insertion Loss of each branch switch is small
In the loss of antenna master switch, and the difference between the sum of Insertion Loss of each branch switch and the loss of the antenna master switch is less than in advance
Setting value.Each branch switch includes multiple first ends, and one of first end is connected with the moved end of corresponding duplexer,
The access component for the signal that at least one first end presets frequency range with transmitting-receiving in remaining first end is connected.Each branch switch
Second end is connected with an input terminal of combiner, and the output end of combiner connects antenna.Radio-frequency front-end system in Fig. 1 is with 2
For a branch switch, which can be applied in mobile terminal, which includes：
Antenna master switch 10, first branch switch 20 and the second branch switch 30, combiner 40, antenna 50；
Wherein, first branch switch 20 and the second branch switch 30 Insertion Loss of itself are less than the loss of antenna master switch 10,
And difference of the sum of 30 Insertion Loss of first branch switch 20 and the second branch switch between the loss of antenna master switch 10 is less than in advance
Setting value, that is, first branch switch 20 compared with antenna master switch 10 is fairly small with the sum of Insertion Loss of the second branch switch 30
's.Specifically, the sum of the Insertion Loss of first branch switch 20 and the second branch switch 30 be antenna master switch 10 be lost 20%~
30%.The default value is the 70%~80% of 10 loss value of antenna master switch.
First branch switch 20 and the second branch switch 30 include respectively multiple first ends, one of first end with it is each
One end of self-corresponding duplexer is connected, at least one first end presets the signal of frequency range with transmitting-receiving in remaining first end
Access component be connected.
The second end of first branch switch 20 and the second branch switch 30 is connected with an input terminal of combiner 40 respectively,
The output end of combiner 40 connects antenna 50.
In Fig. 1 by taking first branch switch 20 and the second branch switch 30 are respectively provided with 2 first ends as an example, each branch is opened
One of pass first end connection antenna master switch 10, another first end presets the access component of the signal of frequency range with transmitting-receiving
It is connected, specifically, the access component of another first end connection X frequency band signals of first branch switch 20 forms X accesses；The
The access component of another first end connection W frequency band signals of two branch switch 30, forms W accesses.
In the embodiment of the present invention, the smaller branch switch of Insertion Loss is connect with antenna master switch, the antenna master switch is integrated
There are mutiple antennas switch, a first end of each branch switch to be connected with one end of a duplexer, the branch switch
Remaining first end connection transmitting-receiving preset frequency range signal access component, the second end of the branch switch is connected on combiner
On, when the signal for having default frequency range by when, the corresponding access of controlling brancher switch connection so that the signal get around loss it is larger
Antenna master switch, and pass through via the smaller branch switch of Insertion Loss, reduce the loss of radio-frequency front-end system.
Referring to Fig. 2, Fig. 2 is the structural schematic diagram for the radio-frequency front-end system that second embodiment of the invention provides, the radio frequency
Front end system can be applied in mobile terminal, radio-frequency front-end system shown in Fig. 2 it is different from radio-frequency front-end system shown in FIG. 1 it
Be in：
One end of duplexer in aforementioned embodiment illustrated in fig. 1 is the moved end of duplexer, each duplexer packet
Multiple non-moving ends are included, multiple non-moving ends of each duplexer are separately connected different frequency range in multiple transmitting-receiving preset frequency bands accesses
The access component of signal.
Specifically, first antenna switch 101 is used to be switched on the access of each frequency band signals in first band access, same
It is conducting that one moment, which kept the access of frequency band signals all the way, so that the frequency band signals pass through the access.Specifically, first frequency
Band access is medium-high frequency access.
Second duplexer 102 is used to be switched on the access of each frequency band signals in second band access, in synchronization
It is conducting to keep the access of frequency band signals all the way, so that the frequency band signals pass through the access.Specifically, the second band access
For low frequency channel.
First antenna switch 101 and the second duplexer 102 include respectively a moved end, multiple non-moving ends.First day
Multiple non-moving ends of wiretap 101 are separately connected the access component of the signal of different frequency range in multiple transmitting-receiving first band accesses,
It can be switched on corresponding non-moving end by controlling the moved end, to connect the receipts of the signal of different frequency range in the first band access
Access is sent out, multiple non-moving ends of the second antenna master switch 102 are separately connected different frequency range in multiple transmitting-receiving second band accesses
The access component of signal can be switched on corresponding non-moving end, to connect in the second band access not by controlling the moved end
With the transmitting-receiving access of the signal of frequency range.
First branch switch 20 and the second branch switch 30 are single pole multiple throw.The first end of each branch switch is single
The non-moving end of knife multithrow switch, second end are the moved end of single pole multiple throw.
It should be noted that the non-moving end of the switch in various embodiments of the present invention is can not to change leading to for switch connection
One end of road component, the moved end of switch are the one end for the access component that can change switch connection by processor control.That is,
Different non-moving ends is connected in the moved end that switch can be controlled, so that the access component that switch connection is different.
Single pole multiple throw is specially four throw switch of single-pole double-throw switch (SPDT), single-pole three-throw switch or hilted broadsword.The present invention is implemented
In each figure in example by taking branch switch is single-pole double-throw switch (SPDT) as an example, the connection and work of other kinds of single pole multiple throw
Principle is identical.
When the non-moving end of single pole multiple throw is two, that is, when the single pole multiple throw is single-pole double-throw switch (SPDT), the list
One non-moving end of double-pole double throw switch connects the moved end of a duplexer, another non-moving end connects the transmitting-receiving and presets frequency range
The signal of the access component of signal, the default frequency range is to other frequency ranges except the signal of different frequency range in preset frequency bands access
Signal.
When the non-moving end of single pole multiple throw is more than or equal to three, that is, the single pole multiple throw is single-pole three-throw switch
Or when four throw switch of hilted broadsword, a non-moving end of the single pole multiple throw connects the moved end of a duplexer, which throws more
Remaining multiple non-moving end of switch are separately connected the access component that the signal of frequency range is preset in multiple transmitting-receivings.Specifically, with first
The first branch switch 20 that duplexer 101 connects, remaining other than connecting the non-moving end of first antenna switch 101 moved end
Multiple non-moving ends, are separately connected the access component that the signals of frequency range are preset in multiple transmitting-receivings, signal of the default frequency range be this first
The signal of other frequency ranges in frequency band access except the signal of different frequency range.
If it should be noted that the signal of branch switch transmitting-receiving is not belonging to the signal of the default frequency range, but belonging to and the branch
Frequency band signals in the corresponding preset frequency bands access of duplexer of way switch connection, then control the duplexer and connect the transmitting-receiving
The corresponding access of signal.
One specific example, in Fig. 2, multiple non-moving ends of first antenna switch 101 are separately connected transmitting-receiving higher frequency band
The access component of the signal of different frequency range in access, the different frequency range signal can be GSM (GLOBAL SYSTEM FOR
MOBILE COMMUNICATION) frequency band signals such as AMHZ (megahertz), GSM BMHZ, GSM CMHZ.Further, first
Way switch 20 has 2 non-moving ends, wherein the moved end of a non-moving end connection first antenna switch 101, the connection of another non-moving end
The access component for receiving and dispatching GSM XMHZ frequency band signals, to be correspondingly formed X accesses, multiple non-moving ends with first antenna switch 101
The signal frequency range of the access component transmission of connection is different.
Multiple non-moving ends of second duplexer 102 are separately connected the signal of different frequency range in transmitting-receiving higher frequency band access
Access component, the different frequency range signal can be the frequency band signals such as GSM DMHZ (megahertz), GSM EMHZ, GSM FMHZ.Into
One step, the second branch switch 30 has 2 non-moving ends, and one of non-moving end connects the moved end of the second duplexer 102, another
The access component of a non-moving end connection transmitting-receiving GSM WMHZ frequency band signals, to be correspondingly formed W accesses, with the second duplexer 102
The connection of multiple non-moving ends the transmission of access component signal frequency range it is different.
It should be noted that when branch switch is single-pole double-throw switch (SPDT), the non-moving end connection one of the branch switch
The moved end of a duplexer, another non-moving end connect the access component that the signal of frequency range is preset in a transmitting-receiving.The default frequency range
Signal may be configured as a most important, most common frequency band signals.It can avoid the time expended when switching communication path and damage
Consumption, while single-pole double-throw switch (SPDT), relative to single-pole three-throw switch, four throw switch of hilted broadsword, Insertion Loss is minimum.
Single pole multiple throw can also be other kinds of switch, as long as the sum of the Insertion Loss of multiple single pole multiple throws is less than
The loss of antenna master switch 10, all can be applicable in the present embodiment.
In the embodiment of the present invention, the smaller single pole multiple throw of Insertion Loss is connect with antenna master switch, the antenna master switch
It is integrated with mutiple antennas switch, a non-moving end of each single pole multiple throw is connected with the moved end in duplexer, remaining
Non-moving end preset the access component of signal of frequency range with transmitting-receiving and be connected, the moved end of the single pole multiple throw and the one of combiner
Input terminal be connected, when the signal for having default frequency range by when, control single pole multiple throw connect the corresponding access of the signal so that
The signal, which is got around, is lost larger antenna master switch, and passes through via the smaller single pole multiple throw of Insertion Loss, reduces radio-frequency front-end
The loss of system.
Referring to Fig. 3, Fig. 3 is the signal processing method flow diagram in third embodiment of the invention, this method can answer
The upstream or downstream signal of communication received, the radio frequency are handled with the radio-frequency front-end system in earlier figures 1 to embodiment illustrated in fig. 2
Front end system includes the branch switch that the sum of multiple Insertion Loss are less than antenna master switch, and antenna master switch is integrated with mutiple antennas and opens
It closes, respectively the one of first end of the branch switch is connected with one end of a duplexer, at least one the in remaining first end
One end is connected with the access component for the signal that frequency range is preset in transmitting-receiving, respectively an input of the second end of the branch switch and combiner
End is connected, and the description of the other structures of the radio-frequency front-end system refers to the description of each embodiment shown in 1~Fig. 2 of earlier figures.It should
Method includes the following steps：
S301, when receiving the signal of communication of upstream or downstream, confirm the frequency range of the signal of communication；
When receiving signal of communication from antenna, alternatively, receiving the signal of communication being sent out, the signal of communication is confirmed
Frequency range.
If the frequency range of S302, the signal of communication belongs to the frequency range in the default frequency range, branch switch connection pair is controlled
The access component of frequency range should be preset so that the signal of communication passes through from corresponding access.
The access component for the signal that at least one first end presets frequency range with transmitting-receiving in the first end of the branch switch is connected,
If the signal of communication received is the signal of one of them default frequency range, the branch switch can control to connect corresponding access,
So that the signal of communication passes through from the access of the connection, passed through from duplexer with getting around, i.e., the signal of communication has got around the day
Line master switch.
In the embodiment of the present invention, the smaller branch switch of Insertion Loss is connect with antenna master switch, the antenna master switch is integrated
There are mutiple antennas switch, a first end of each branch switch to be connected with one end of a duplexer, the branch switch
Remaining first end connection transmitting-receiving preset frequency range signal access component, the second end of the branch switch is connected on combiner
On, when the signal for having default frequency range by when, the corresponding access of controlling brancher switch connection so that the signal get around loss it is larger
Antenna master switch, and pass through via the smaller branch switch of Insertion Loss, reduce the loss of radio-frequency front-end system.
Fig. 4 is referred to, Fig. 4 is the flow diagram of signal processing method in third embodiment of the invention, the signal processing
Method can apply the upstream or downstream communication letter that the radio-frequency front-end system processing in 1~embodiment illustrated in fig. 2 of earlier figures receives
Number, which includes the branch switch that the sum of multiple Insertion Loss are less than antenna master switch, which is that hilted broadsword is more
One non-moving end of throw switch, a single pole multiple throw is connected with the moved end of a duplexer, in remaining non-moving end at least
The access component of signal that one non-moving end presets frequency range with transmitting-receiving is connected, the moved end of the branch switch and the one of combiner it is defeated
Enter end to be connected.The antenna master switch switchs for All-in-One, is two-in-one switch in the present embodiment, that is, be integrated with first antenna and open
It closes and the second duplexer, multiple non-moving ends of first antenna switch is separately connected different frequencies in multiple transmitting-receiving first band accesses
Multiple non-moving ends of the access component of the signal of section, the second duplexer are separately connected difference in multiple transmitting-receiving second band accesses
The access component of the signal of frequency range.The description of the other structures of the radio-frequency front-end system, this method may include following steps：
S401, when receiving the signal of communication of upstream or downstream, confirm the frequency range of the signal of communication；
Wherein, if the signal of communication received from antenna, confirm the frequency range of the signal of communication, combiner is according to the communication
The frequency range of signal is by the communication signal transmissions to first antenna switch, the second duplexer or branch switch.
If the frequency range of S402, the signal of communication belongs to the frequency range in the default frequency range, branch switch connection pair is controlled
The access component of frequency range should be preset so that the signal of communication passes through from corresponding access；
One non-moving end of the single pole multiple throw is connected with the moved end of a duplexer, remaining non-moving end and at least one
The access component that the signal of frequency range is preset in a transmitting-receiving is connected, if the signal of communication received is the letter of one of them default frequency range
Number, then can control the single pole multiple throw to connect corresponding access so that the signal of communication passes through from the access of the connection, with around
It opens and passes through from duplexer, i.e., the signal of communication has got around the antenna master switch.
If the frequency range of S403, the signal of communication is not belonging to the frequency range in the default frequency range, branch switch connection is controlled
The access component of the corresponding default frequency range so that the signal of communication passes through from corresponding access.
Specifically, it if the frequency range of signal of communication belongs to the frequency range in first band access, controls first antenna switch and connects
The corresponding access component of frequency range of logical signal of communication so that signal of communication passes through from corresponding access.
If the frequency range of signal of communication belongs to the frequency range in second band access, controls the second duplexer and connect communication letter
Number the corresponding access component of frequency range so that signal of communication passes through from corresponding access.
The details of the present embodiment not to the greatest extent, please refers to the description of 1~embodiment illustrated in fig. 3 of earlier figures, details are not described herein again.
In the embodiment of the present invention, the smaller single pole multiple throw of Insertion Loss is connect with antenna master switch, the antenna master switch
It is integrated with mutiple antennas switch, a non-moving end of each single pole multiple throw is connected with the moved end in duplexer, remaining
Non-moving end preset the access component of signal of frequency range with transmitting-receiving and be connected, the moved end of the single pole multiple throw and the one of combiner
Input terminal be connected, when the signal for having default frequency range by when, control single pole multiple throw connect the corresponding access of the signal so that
The signal, which is got around, is lost larger antenna master switch, and passes through via the smaller single pole multiple throw of Insertion Loss, reduces radio-frequency front-end
The loss of system.
Referring to Fig. 5, Fig. 5 is mobile terminal hardware architecture diagram provided in an embodiment of the present invention.
Mobile terminal in the present embodiment includes：It memory 51, processor 52 and is stored on memory 51 and can locate
The computer program run on reason device, processor are realized when executing described program described in 1~embodiment illustrated in fig. 4 of earlier figures
Radio-frequency front-end system.
Further, which further includes：
At least one input equipment 53；At least one output equipment 54.
Above-mentioned memory 51,52 input equipment 53 of processor and output equipment 54 are connected by bus 55.
Wherein, input equipment 53 concretely camera, touch panel, physical button or mouse etc..Output equipment
54 concretely display screens.
Memory 51 can be high random access memory body (RAM, Random Access Memory) memory, also may be used
For non-labile memory (non-volatile memory), such as magnetic disk storage.Memory 51 can for storing one group
Program code is executed, processor 52 is coupled with memory 51.
Mobile terminal described in the present embodiment further includes radio-frequency front-end system 56, and radio-frequency front-end system 56 includes antenna
Master switch, combiner, antenna and multiple branch switch；The antenna master switch integrates mutiple antennas switch；Each antenna
The moved end of switch is all connected with a branch switch, and the sum of Insertion Loss of each branch switch is less than the antenna master switch
Loss, and the difference between the sum of Insertion Loss of each branch switch and the loss of the antenna master switch is less than default value；
Each branch switch includes multiple first ends, and one of first end is connected with the moved end of the duplexer, remaining
First end at least one first end preset the access component of signal of frequency range with transmitting-receiving and be connected；Each branch switch
Second end is connected with an input terminal of the combiner, and the output end of the combiner connects the antenna.
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, it may refer to the associated description of other embodiments.
It is the description to radio-frequency front-end system provided by the present invention, mobile terminal and signal processing method above, for
Those skilled in the art, the thought of embodiment, has change in specific embodiments and applications according to the present invention
Place, to sum up, the content of the present specification should not be construed as limiting the invention.
Claims (10)
1. a kind of radio-frequency front-end system, which is characterized in that the radio-frequency front-end system includes：
Antenna master switch, combiner, antenna and multiple branch switch；
The antenna master switch integrates mutiple antennas switch；
One end of each duplexer is all connected with a branch switch, and the sum of the Insertion Loss of each branch switch is less than
The loss of the antenna master switch, and the difference between the sum of Insertion Loss of each branch switch and the loss of the antenna master switch
Value is less than default value；
Each branch switch includes multiple first ends, one end phase of one of first end and the duplexer
Even, the access component for the signal that at least one first end presets frequency range with transmitting-receiving in remaining first end is connected；
Each second end of the branch switch is connected with an input terminal of the combiner, and the output end of the combiner connects
Connect the antenna；
When the signal for having default frequency range by when, control the branch switch and connect corresponding access so that the signal is got around
The larger antenna master switch is lost, passes through via the smaller branch switch of Insertion Loss.
2. radio-frequency front-end system according to claim 1, which is characterized in that the branch switch is single pole multiple throw.
3. radio-frequency front-end system according to claim 2, which is characterized in that one end of the duplexer is moved end, institute
It includes multiple non-moving ends to state antenna, and multiple non-moving ends of each duplexer are separately connected multiple transmitting-receiving preset frequency bands accesses
The access component of the signal of middle different frequency range；
The first end of the branch switch is the non-moving end of single pole multiple throw, and the second end of the branch switch is
The moved end of single pole multiple throw；
When the non-moving end of the single pole multiple throw is two, a non-moving end of the single pole multiple throw connects an institute
The moved end of duplexer is stated, another non-moving end of the single pole multiple throw connects the logical of the signal of the default frequency range of the transmitting-receiving
Road component, the signal of the default frequency range are the letter of other frequency ranges in the preset frequency bands access except the signal of different frequency range
Number.
4. radio-frequency front-end system according to claim 3, which is characterized in that when the non-moving end of the single pole multiple throw is big
When equal to three, a non-moving end of the single pole multiple throw connects the moved end of a duplexer, the hilted broadsword
Remaining multiple non-moving end of multithrow switch are separately connected the access component that the signal of frequency range is preset in multiple transmitting-receivings.
5. radio-frequency front-end system according to claim 4, which is characterized in that
The single pole multiple throw is specially four throw switch of single-pole double-throw switch (SPDT), single-pole three-throw switch or hilted broadsword.
6. a kind of mobile terminal, which is characterized in that including 1 to 5 any one of them radio-frequency front-end system of the claims.
7. a kind of signal processing method handles the letter using 1 to 5 any one of them radio-frequency front-end system of the claims
Number, which is characterized in that the one of first end of branch switch is connected with one end of duplexer, in remaining multiple first end at least
One first end is connected with the access component for the signal that frequency range is preset in transmitting-receiving, the method includes：
When receiving the signal of communication of upstream or downstream, the frequency range of the signal of communication is confirmed；
If the frequency range of the signal of communication belongs to the frequency range in the default frequency range, controls the branch switch and connect corresponding institute
State the access component of default frequency range so that the signal of communication passes through from corresponding access.
8. the method according to the description of claim 7 is characterized in that after the frequency range for confirming the signal of communication, also wrap
It includes：
If the frequency range of the signal of communication is not belonging to the frequency range in the default frequency range, control described in the duplexer connection
The corresponding access component of frequency range of signal of communication so that the signal of communication passes through from corresponding access.
9. according to the method described in claim 8, it is characterized in that, the duplexer integrates first antenna switch and second day
Wiretap, multiple non-moving ends of the first antenna switch are separately connected the letter of different frequency range in multiple transmitting-receiving first band accesses
Number access component, then, if the frequency range of the signal of communication is not belonging to the frequency range in the default frequency range, described in control
Duplexer connects the corresponding access component of frequency range of the signal of communication so that the signal of communication passes through from corresponding access
Including：
If the frequency range of the signal of communication belongs to the frequency range in the first band access, controls the first antenna switch and connect
Lead to the corresponding access component of frequency range of the signal of communication so that the signal of communication passes through from corresponding access.
10. according to the method described in claim 9, it is characterized in that, multiple non-moving ends of second duplexer connect respectively
The access component for connecing the signal of different frequency range in multiple transmitting-receiving second band accesses, then, if the frequency range of the signal of communication
The frequency range being not belonging in the default frequency range then controls the corresponding access of frequency range that the duplexer connects the signal of communication
Component so that the signal of communication is from corresponding access by further including：
If the frequency range of the signal of communication belongs to the frequency range in the second band access, controls second duplexer and connect
Lead to the corresponding access component of frequency range of the signal of communication so that the signal of communication passes through from corresponding access.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771739.6A CN107612563B (en) | 2017-08-31 | 2017-08-31 | Radio-frequency front-end system, mobile terminal and signal processing method |
Applications Claiming Priority (1)
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| CN106209154A (en) * | 2016-07-01 | 2016-12-07 | 乐视控股（北京）有限公司 | Antenna assembly and major-minor collection antenna-switching device thereof and method |
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| CN102404879B (en) * | 2011-11-04 | 2016-04-13 | 惠州Tcl移动通信有限公司 | A kind of communication terminal |
| CN102420634A (en) * | 2011-12-07 | 2012-04-18 | 捷开通讯科技(上海)有限公司 | Wireless communication transmitting and receiving system |
| CN202856730U (en) * | 2012-09-17 | 2013-04-03 | 西安天和防务技术股份有限公司 | Converter based on microwave centralized transmission and scattered transmission |
| CN107070483B (en) * | 2017-03-20 | 2019-12-03 | Oppo广东移动通信有限公司 | Radio circuit and terminal |
| CN107070485A (en) * | 2017-05-10 | 2017-08-18 | 广东欧珀移动通信有限公司 | Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment |
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