CN207766259U - Frequency division duplex radio circuit and terminal - Google Patents
Frequency division duplex radio circuit and terminal Download PDFInfo
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- CN207766259U CN207766259U CN201721630401.0U CN201721630401U CN207766259U CN 207766259 U CN207766259 U CN 207766259U CN 201721630401 U CN201721630401 U CN 201721630401U CN 207766259 U CN207766259 U CN 207766259U
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Abstract
The utility model provides a kind of frequency division duplex radio circuit and terminal, wherein frequency division duplex radio circuit includes：Radio-frequency signal transceiver, including the first UHF band reception end, the second UHF band reception end and radiofrequency signal transmitting terminal；At least one multiplexer, including the first filtering receiving terminal, the first filtering transmitting terminal, the second filtering receiving terminal and the second filtering transmitting terminal, the first UHF band reception access is formed between first filtering transmitting terminal and the first UHF band reception end, the second UHF band reception access is formed between second filtering transmitting terminal and the second UHF band reception end, the first filtering receiving terminal, the second filtering receiving terminal form the first frequency range transmission path and the second frequency range transmission path between radiofrequency signal transmitting terminal respectively.By the technical solution of the utility model, a set of hardware circuit is shared by third frequency range and the first frequency range, the second frequency range, the difficulty of layout is reduced, saves circuit cost, realize the optimization of radio circuit, and then is conducive to promote radiofrequency signal quality.
Description
Technical field
The utility model is related to printed-board technology field, in particular to a kind of frequency division duplex radio circuit and
A kind of terminal.
Background technology
In the related art, as the mobile terminals such as mobile phone become increasingly popular, requirement of the client to its mobile terminal is increasingly
Height, the especially requirement to the network coverage of mobile terminal and upload, download transmission rate and signal quality are more and more severe
It carves.
However as the rapidly expansion of mobile terminal network coverage area, and high transfer rate and signal quality are required, this
So that the frequency range that radio communication design circuit requirement includes is more and more, circuit becomes to become increasingly complex, and design space becomes to get over
Carry out narrower, as shown in Figure 1 frequency division duplex radio circuit, is primarily present following defect：
(1) radio frequency band increases considerably, and will necessarily increase the use (using three duplexers) of radio frequency related device,
Increase manufacturing cost.
(2) in a limited space, layout and cabling to PCB propose prodigious challenge, especially frequency division duplex frequency
The increase of section improves the probability for the isolation for influencing related frequency range, so that bringing into not if the arrangement of circuit board is not reasonable
Necessary desense, to make signal quality be deteriorated.
Utility model content
The utility model is based at least one above-mentioned technical problem, it is proposed that a kind of new frequency division duplex radio frequency electrical
Road, to solve the above problems.
In view of this, first aspect according to the present utility model, it is proposed that a kind of frequency division duplex radio circuit, including：It penetrates
Frequency signal transceiver, including the first UHF band reception end, the second UHF band reception end and radiofrequency signal transmitting terminal；At least one multiplexing
Device, including the first filtering receiving terminal, the first filtering transmitting terminal, the second filtering receiving terminal and the second filtering transmitting terminal, the first filtering
The first UHF band reception access, the second filtering transmitting terminal and the second UHF band reception end are formed between transmitting terminal and the first UHF band reception end
Between form the second UHF band reception access, the first filtering receiving terminal, the second filtering receiving terminal respectively with radiofrequency signal transmitting terminal it
Between form the first frequency range transmission path and the second frequency range transmission path；When the first frequency range and the second frequency range work at the same time, pass through
First UHF band reception access receives the carrier signal of third frequency range, and the carrier wave of third frequency range is sent by the second frequency range transmission path
Signal, wherein the reception band limits of third frequency range belongs to the reception band limits of the first frequency range, with the transmission frequency of third frequency range
Segment limit belongs to the transmission band limits of the second frequency range.
In the technical scheme, replace multiple duplexers to reduce the setting quantity of duplexer by using multiplexer,
The reception frequency range of third frequency range belongs to the reception band limits of the first frequency range, and the transmission frequency range of third frequency range belongs to the second frequency range
Transmission band limits when, the carrier signal of third frequency range can be received by the first filtering receiving terminal of multiplexer, and is passed through
The carrier signal of third frequency range is sent to radio-frequency signal transceiver by the first filtering transmitting terminal of multiplexer, to realize third frequency range
Carrier signal receives, and receiving the third frequency range carrier wave that radio-frequency signal transceiver is sent by the second filtering receiving terminal of multiplexer believes
Number, and antenna is sent to by the second filtering transmitting terminal of multiplexer, to realize that third band carrier signal is sent, with existing skill
Radio circuit layout modes are compared in art, on the one hand, share a set of hardware by third frequency range and the first frequency range, the second frequency range
Circuit reduces the difficulty of layout, saves circuit cost, on the other hand, realizes the optimization of radio circuit, and then be conducive to
Radiofrequency signal quality is promoted, in another aspect, increasing band limits by realization, also helps carrier wave polymerization.
Specifically, radio-frequency signal transceiver can be rf chip.
In the above-mentioned technical solutions, it is preferable that at least one multiplexer is a four work devices.
In the technical scheme, at least one multiplexer is set to a four work devices, since four work devices allow two frequencies
Band is connected to antenna simultaneously, and meets stringent intersection isolation specification, on the one hand, is replaced by using a four work devices original
Three duplexers, with realize three frequency ranges signal transmission and transmission, to be conducive to carrier wave polymerization realization, another party
Face, four work devices may be configured to single antenna connection structure, and then the structure for being advantageously implemented antenna switch module simplifies.
Specifically, four Work tool bodies include aerial signal transmission end, the first filtering transmitting terminal, the second filtering transmitting terminal, first
Filter receiving terminal and the second filtering receiving terminal allows two frequency ranges to work at the same time, due to first due to the isolation performance of four work devices
The range of receiving of frequency range includes the range of receiving of third frequency range, and the first UHF band reception access can receive the load of the first frequency range simultaneously
The carrier signal of wave signal and third frequency range receives the carrier signal of the carrier signal and third frequency range of the first frequency range in antenna
Afterwards, after by the first filtering transmitting terminal of four work devices, the first filtering receiving path, it is sent to the first UHF band reception end, by penetrating
Frequency signal transceiver parses the carrier signal of the carrier signal and third frequency range of the first frequency range, and the second frequency range is received in antenna
Filtering signal after, be sent to the second UHF band reception end by the second filtering transmitting terminal, the second UHF band reception access, and then pass through
It is demodulated to the operations such as baseband digital signal and realizes signal processing.
Or radio-frequency signal transceiver by radiofrequency signal transmitting terminal by carrier signal by the first frequency range transmission path and/
Or second frequency range transmission path be sent to four work devices, operation is filtered by the filter inside four work devices, and to second
The filtering signal of the filtering signal of frequency range and third frequency range is carried out after carrier wave polymerize, then is exported to day by aerial signal transmission end
Line, then there is antenna outwardly to send the carrier aggregation signal.
In any of the above-described technical solution, it is preferable that at least one multiplexer includes the first triplexer and the second triplexer,
First triplexer includes the first UHF band reception access and the first frequency range transmission path, and the second triplexer is logical including the second UHF band reception
Road and the second frequency range transmission path.
In the technical scheme, it replaces needing the place of two duplexers that triplexer may be used, such as by the
One filtering receiving terminal and the first filtering transmitting terminal are arranged on first triplexer, and the second filtering receiving terminal and the second filtering are sent out
Sending end is arranged on second triplexer, compared with the set-up mode of three duplexers in the prior art, is equally beneficial for reducing
The use of radio-frequency devices, and optimization configuration.
In any of the above-described technical solution, it is preferable that further include：Multimode multi-frequency section power amplifier, including signal input
End, the first frequency range transmitting terminal and the second frequency range transmitting terminal, signal input part are connected to radiofrequency signal transmitting terminal, and the first frequency range is sent
End is connected to the first filtering receiving terminal, and the second frequency range transmitting terminal is connected to the second filtering receiving terminal, to be sent by the second frequency range
Access sends the carrier signal of third frequency range.
In the technical scheme, power amplifier is multimode multi-frequency section, multimode multi-frequency section power amplifier and radiofrequency signal
Transmitting terminal is electrically connected, and has been respectively provided at least the first frequency range transmitting terminal and the second frequency range transmitting terminal, the first frequency range transmitting terminal energy
Enough that the first frequency range transmission path is formed between the first filtering receiving terminal, the second frequency range transmitting terminal can be with the second filtering receiving terminal
Between form the second frequency range transmission path, on the one hand, can promoted radio frequency power output, to promote delivery efficiency, another party
A power amplification need to be arranged with an access in the prior art by setting power amplifier to multimode multi-frequency section in face
The mode of device is compared, and the setting of device is further saved, and meets the demand of carrier wave polymerization.
In any of the above-described technical solution, it is preferable that further include：The first end of combiner, combiner is respectively connected to
One filtering receiving terminal and the second filtering receiving terminal, the second end of combiner is connected to antenna, wherein combiner is used for will be via the
After one frequency range transmission path polymerize with the carrier signal of the second frequency range transmission path, it is sent to antenna.
In the technical scheme, by the way that combiner is arranged, the filtering signal of at least three frequency ranges can be polymerized to two tunnels
Filtering signal, and it is sent to antenna, to be emitted to the external world by antenna, or rather at least by the filtering signal point received from the external world
It is sent to radio-frequency signal transceiver after three frequency ranges, advantageously reduces antenna amount, improves the utilization rate of arrangement space.
In any of the above-described technical solution, it is preferable that further include：One end of antenna switch module, antenna switch module connects
It is connected to antenna, the other end of antenna switch module is connected to multiplexer, wherein when being connected between antenna switch module, antenna
Receive or emit the first band carrier signal, the second band carrier signal and third band carrier signal.
In the technical scheme, antenna switch module is provided with antenna sending and receiving end, and antenna sending and receiving end is connected to antenna, day
The other end of wiretap module is connected to multiplexer, to receive the carrier aggregation signal of multiplexer transmission, is opened by the way that antenna is arranged
Module is closed, sending and receiving for multiple band carrier signals can be controlled by switching radio frequency path, is four works in multiplexer
When device, antenna switch module can be considered as the switch of a single-pole single-throw(SPST, to be conducive to advanced optimize wiring.
In any of the above-described technical solution, it is preferable that further include：Controller is respectively connected to the first triplexer and second
Triplexer, controller are worked at the same time for controlling the first triplexer with the second triplexer.
In the technical scheme, the controller of the first triplexer and the second triplexer is respectively connected to by setting, with logical
It crosses controller to realize two frequency bands while being connected to antenna, and then meets the needs of carrier wave polymerization
Wherein, under the premise of being provided with the controller, the first triplexer and the second triplexer can also be replaced with to
One duplexer and the second duplexer.
In any of the above-described technical solution, it is preferable that combiner is dual-frequency channel merger or tri-frequency combiner.
In any of the above-described technical solution, it is preferable that the transmission band limits of the first frequency range be 1920M~1980M, first
The reception band limits of frequency range is 2110M~2170M；The transmission band limits of second frequency range is 1710M~1785M, the second frequency
The reception band limits of section is 1805M~1880M；The transmission band limits of third frequency range is 1710M~1755M, third frequency range
Reception band limits be 2110M~2155M.
In the technical scheme, the band limits of tri- frequency ranges of Band1, Band3 and Band4 has following relationship：Band1
Transmission frequency range is 1920M~1980M, and it is 2110M~2170M that Band1, which receives frequency range,；Band3 transmit frequency range be 1710M~
It is 1805M~1880M that 1785M, Band3, which receive frequency range,；It is 1710M~1755M that Band4, which transmits frequency range, and Band4 receives frequency range and is
2110M~2155M；Band4 receives the reception band limits that band limits is under the jurisdiction of Band1, and Band4 transmission band limits is subordinate to
B4 can be allowed to walk the TX of B1, the RX of B3 is walked, pass through when Band1 and Band3 are worked at the same time in the transmission band limits of Band3
Replace Band1 duplexers, Band3 duplexers and Band4 duplexers using tetra- work devices of band1/3, make Band4 and Band1,
Band3 shares a set of hardware circuit, and Band1 and Band3 can be worked at the same time, and is used so as to save Band4 duplexers
Material, while reducing TX the and RX cablings of Band4, and then achieve the purpose that optimize radio circuit.
Second aspect according to the present utility model, it is also proposed that a kind of terminal, including：Such as the first aspect of the utility model
Any one of described in frequency division duplex radio circuit.
In the technical scheme, frequency division duplex radio circuit may include radio-frequency signal transceiver (rf chip),
Multimode multi-frequency section power amplifier, a four work device (or two triplexers), antenna switch module and antenna, to form two frequencies
Section receiving path and two frequency range transmission paths, a UHF band reception access therein can receive the radio frequency letter of two frequency ranges
Number, a frequency range transmission path therein can send the radiofrequency signal of two frequency ranges, thus under the facilities of single antenna,
It is directly realized carrier wave polymerizable functional.
By above technical scheme, replace multiple duplexers to reduce the setting quantity of duplexer by using multiplexer,
Belong to the reception band limits of the first frequency range in the reception frequency range of third frequency range, and the transmission frequency range of third frequency range belongs to the second frequency
When the transmission band limits of section, the carrier signal of third frequency range can be received by the first filtering receiving terminal of multiplexer, and lead to
The carrier signal of third frequency range is sent to radio-frequency signal transceiver by the first filtering transmitting terminal for crossing multiplexer, to realize third frequency
Section carrier signal receives, and the third frequency range carrier wave that radio-frequency signal transceiver is sent is received by the second filtering receiving terminal of multiplexer
Signal, and antenna is sent to by the second filtering transmitting terminal of multiplexer, it is and existing to realize that third band carrier signal is sent
Radio circuit layout modes are compared in technology, on the one hand, are shared by third frequency range and the first frequency range, the second frequency range a set of hard
Part circuit reduces the difficulty of layout, saves circuit cost, on the other hand, realizes the optimization of radio circuit, and then advantageous
In promoting radiofrequency signal quality, in another aspect, increasing band limits by realization, carrier wave polymerization is also helped.
Description of the drawings
Fig. 1 shows the structural schematic diagram of frequency division duplex radio circuit in the related technology；
Fig. 2 shows the structural schematic diagrams of the frequency division duplex radio circuit of one embodiment according to the present utility model；
Fig. 3 shows the structural schematic diagram of the frequency division duplex radio circuit of another embodiment according to the present utility model.
Specific implementation mode
In order to be more clearly understood that the above objects, features, and advantages of the utility model, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
Novel to be implemented different from other modes described here using other, therefore, the scope of protection of the utility model is simultaneously
It is not limited by following public specific embodiment.
Fig. 2 and Fig. 3 shows the schematic flow diagram of the frequency division duplex radio circuit of embodiment according to the present utility model.
The frequency division duplex radio circuit of one embodiment according to the present utility model, including：Radio-frequency signal transceiver 202,
Including the first UHF band reception end 2022, the second UHF band reception end 2024 and radiofrequency signal transmitting terminal 2026；At least one multiplexing
Device 204, including the first filtering receiving terminal 2046, first filter transmitting terminal 2042, second and filter the filtering of receiving terminal 2048 and second
Transmitting terminal 2044 forms the first UHF band reception access between first filtering transmitting terminal 2042 and the first UHF band reception end 2022
202a, forms the second UHF band reception access 202b between the second filtering transmitting terminal 2044 and the second UHF band reception end 2024, and first
Filtering receiving terminal 2046, second filters receiving terminal 2048 and forms the transmission of the first frequency range between radiofrequency signal transmitting terminal 2026 respectively
Access 204a and the second frequency range transmission path 204b；When the first frequency range and the second frequency range work at the same time, connect by the first frequency range
The carrier signal that access 202a receives third frequency range is received, the carrier wave that third frequency range is sent by the second frequency range transmission path 204b is believed
Number, wherein the reception band limits of third frequency range belongs to the reception band limits of the first frequency range, with the transmission frequency range of third frequency range
Range belongs to the transmission band limits of the second frequency range.
In this embodiment, replace multiple duplexers to reduce the setting quantity of duplexer by using multiplexer 204,
The reception frequency range of third frequency range belongs to the reception band limits of the first frequency range, and the transmission frequency range of third frequency range belongs to the second frequency range
Transmission band limits when, can by multiplexer 204 first filtering receiving terminal 2046 receive third frequency range carrier signal,
And the carrier signal of third frequency range is sent to by radio-frequency signal transceiver by the first filtering transmitting terminal 2042 of multiplexer 204
202, to realize that third band carrier signal receives, radiofrequency signal is received by the second filtering receiving terminal 2048 of multiplexer 204
The third band carrier signal that transceiver 202 is sent, and antenna is sent to by the second filtering transmitting terminal 2044 of multiplexer 204
210, to realize that third band carrier signal is sent, compared with radio circuit layout modes in the prior art, on the one hand, pass through
Third frequency range shares a set of hardware circuit with the first frequency range, the second frequency range, reduces the difficulty of layout, saves circuit cost,
On the other hand, the optimization of radio circuit is realized, and then is conducive to promote radiofrequency signal quality, in another aspect, being increased by realizing
Add band limits, also helps carrier wave polymerization.
Specifically, radio-frequency signal transceiver 202 can be rf chip.
Embodiment one：
In the above embodiment, it is preferable that at least one multiplexer 204 is a four work devices.
In this embodiment, at least one multiplexer 204 is set to a four work devices, since four work devices allow two frequencies
Band is connected to antenna 210 simultaneously, and meets stringent intersection isolation specification, on the one hand, is replaced by using a four work devices
Original three duplexers, to realize the transmission and transmission of the signal of three frequency ranges, to be conducive to the realization of carrier wave polymerization, separately
On the one hand, four work devices may be configured to 210 connection structure of single antenna, and then be advantageously implemented the knot of antenna switch module 208
Structure simplifies.
Specifically, four Work tool bodies include aerial signal transmission end, the first filtering filtering transmitting terminal of transmitting terminal 2042, second
2044, the first filtering receiving terminal 2046 and second filters receiving terminal 2048, due to the isolation performance of four work devices, allows two frequency ranges
It works at the same time, since the range of receiving of the first frequency range includes the range of receiving of third frequency range, the first UHF band reception access 202a energy
The carrier signal of carrier signal and third frequency range enough while that receive the first frequency range, the load of the first frequency range is received in antenna 210
Wave signal filters receiving path with after the carrier signal of third frequency range by the first filtering transmitting terminal 2042, first of four work devices
Afterwards, it is sent to the first UHF band reception end 2022, the carrier signal of the first frequency range and the is parsed by radio-frequency signal transceiver 202
The carrier signal of three frequency ranges, after the filtering signal that antenna 210 receives the second frequency range, by second filtering transmitting terminal 2044,
Second UHF band reception access 202b is sent to the second UHF band reception end 2024, and then by being demodulated to the operations such as baseband digital signal
Realize signal processing.
Or radio-frequency signal transceiver 202 is sent carrier signal by the first frequency range by radiofrequency signal transmitting terminal 2026
Access 204a and/or the second frequency range transmission path 204b are sent to four work devices, are filtered by the filter inside four work devices
Operation, and after polymerizeing with the filtering signal of third frequency range progress carrier wave to the filtering signal of the second frequency range, then by aerial signal
Transmission end is exported to antenna 210, then has antenna 210 outwardly to send the carrier aggregation signal.
Embodiment two：
In any of the above-described embodiment, it is preferable that at least one multiplexer 204 includes the first triplexer and the two or three work
Device, the first triplexer include the first UHF band reception access 202a and the first frequency range transmission path 204a, and the second triplexer includes the
Two UHF band reception access 202b and the second frequency range transmission path 204b.
In this embodiment, it replaces needing the place of two duplexers that triplexer may be used, such as by first
Filter receiving terminal 2046 and first filter transmitting terminal 2042 be arranged on first triplexer, by second filtering receiving terminal 2048 and
Second filtering transmitting terminal 2044 is arranged on second triplexer, compared with the set-up mode of three duplexers in the prior art,
It is equally beneficial for reducing the use of radio-frequency devices, and optimization configuration.
Embodiment three：
In any of the above-described embodiment, it is preferable that further include：Multimode multi-frequency section power amplifier 206, including signal input
The 2062, first frequency range transmitting terminal 2064 and the second frequency range transmitting terminal 2066, signal input part 2062 is held to be connected to radiofrequency signal hair
Sending end 2026, the first frequency range transmitting terminal 2064 are connected to the first filtering receiving terminal 2046, and the second frequency range transmitting terminal 2066 is connected to
Second filtering receiving terminal 2048, to send the carrier signal of third frequency range by the second frequency range transmission path 204b.
In this embodiment, power amplifier is multimode multi-frequency section, multimode multi-frequency section power amplifier 206 and radiofrequency signal
Transmitting terminal is electrically connected, and has been respectively provided at least the first frequency range transmitting terminal 2064 and the second frequency range transmitting terminal 2066, the first frequency range
Transmitting terminal 2064 can form the first frequency range transmission path 204a, the second frequency range transmitting terminal between the first filtering receiving terminal 2046
2066 can form the second frequency range transmission path 204b between the second filtering receiving terminal 2048, on the one hand, can be penetrated in promotion
Frequency output power, to promote delivery efficiency, on the other hand, by setting power amplifier to multimode multi-frequency section, with existing skill
The mode that a power amplifier need to be arranged in an access in art is compared, and further saves the setting of device, and meet
The demand of carrier wave polymerization.
Example IV：
In any of the above-described embodiment, it is preferable that further include：The first end of combiner, combiner is respectively connected to first
It filters receiving terminal 2046 and second and filters receiving terminal 2048, the second end of combiner is connected to antenna 210, wherein combiner is used
After it will polymerize with the carrier signal of the second frequency range transmission path 204b via the first frequency range transmission path 204a, it is sent to antenna
210。
In this embodiment, by the way that combiner is arranged, the filtering signal of at least three frequency ranges can be polymerized to the filter of two tunnels
Wave signal, and it is sent to antenna 210, to be emitted to the external world by antenna 210, or rather by the filtering signal point received from the external world
It is sent to radio-frequency signal transceiver 202 after at least three frequency ranges, advantageously reduces 210 quantity of antenna, improves the profit of arrangement space
With rate.
Embodiment five：
In any of the above-described embodiment, it is preferable that further include：Antenna switch module 208, the one of antenna switch module 208
End 2084 is connected to antenna 210, and the other end 2082 of antenna switch module 208 is connected to multiplexer 204, wherein is opened in antenna
When closing the conducting of module 208, antenna 210 receives or the first band carrier signal of transmitting, the second band carrier signal and third frequency
Section carrier signal.
In this embodiment, antenna switch module 208 is provided with 210 sending and receiving end of antenna, and 210 sending and receiving end of antenna is connected to
The other end of antenna 210, antenna switch module 208 is connected to the carrier-wave transmission end 2050 of multiplexer 204, to receive multiplexer
204 carrier aggregation signals sent can be multiple to control by switching radio frequency path by the way that antenna switch module 208 is arranged
Band carrier signal sends and receives, and when multiplexer 204 is four work device, antenna switch module 208 can be considered as a list
The switch of single-pole single-throw, to be conducive to advanced optimize wiring.
Embodiment six：
In any of the above-described embodiment, it is preferable that further include：Controller is respectively connected to the first triplexer and the two or three
Work device, controller are worked at the same time for controlling the first triplexer with the second triplexer.
In this embodiment, the controller of the first triplexer and the second triplexer is respectively connected to by setting, to pass through
Controller realizes that two frequency bands are connected to antenna 210 simultaneously, and then meets the needs of carrier wave polymerization
Wherein, under the premise of being provided with the controller, the first triplexer and the second triplexer can also be replaced with to
One duplexer and the second duplexer.
In any of the above-described embodiment, it is preferable that combiner is dual-frequency channel merger or tri-frequency combiner.
Embodiment seven：
As shown in figure 3, in any of the above-described embodiment, it is preferable that the transmission band limits of the first frequency range be 1920M~
The reception band limits of 1980M (Band1TX), the first frequency range are 2110M~2170M (Band1RX)；The transmission frequency of second frequency range
Segment limit is 1710M~1785M (Band3TX), and the reception band limits of the second frequency range is 1805M~1880M (Band3RX)；
The transmission band limits of third frequency range is 1710M~1755M (Band4TX), the reception band limits of third frequency range be 2110M~
2155M(Band4RX)。
In this embodiment, the band limits of tri- frequency ranges of Band1, Band3 and Band4 has following relationship：Band1 is passed
It is 1920M~1980M to send frequency range, and it is 2110M~2170M that Band1, which receives frequency range,；It is 1710M~1785M that Band3, which transmits frequency range,
It is 1805M~1880M that Band3, which receives frequency range,；It is 1710M~1755M that Band4, which transmits frequency range, and it is 2110M that Band4, which receives frequency range,
~2155M；Band4 receives the reception band limits that band limits is under the jurisdiction of Band1, and Band4 transmission band limits is under the jurisdiction of
The transmission band limits of Band3 can allow B4 to walk the TX of B1 when Band1 and Band3 are worked at the same time, and walk the RX of B3, and frequency division is double
Work radio circuit can specifically include：
Radio-frequency signal transceiver 202, four work devices 204, multimode multi-frequency section power amplifier 206,208 He of antenna switch module
First UHF band reception end 2022 of antenna 210, radio-frequency signal transceiver 202 can receive the radio frequency letter of Band1 and Band4 simultaneously
Number and be connected to the first filtering transmitting terminal 2042, the second UHF band reception end 2024 receive Band3, and be connected to the second filtering transmission
End 2044, radiofrequency signal transmitting terminal 2026 is connected to signal input part 2062, and the first frequency range transmitting terminal 2064 is connected to the first filter
Wave receiving terminal 2046, the second frequency range transmitting terminal 2066 are connected to the second filtering receiving terminal 2048, with simultaneously send Band3 and
The radiofrequency signal of Band4, carrier-wave transmission end 2050 are connected to the other end 2082 of antenna switch module 208, antenna switch module
208 one end 2084 is connected to antenna 210.
Band1 duplexers, Band3 duplexers and Band4 duplexers are replaced by using tetra- work devices of band1/3, makes Band4
A set of hardware circuit is shared with Band1, Band3, and Band1 and Band3 can be worked at the same time, so as to save Band4
Duplexer materials, while reducing TX the and RX cablings of Band4, and then achieve the purpose that optimize radio circuit.
Second aspect according to the present utility model, it is also proposed that a kind of terminal, including：Such as the first aspect of the utility model
Any one of described in frequency division duplex radio circuit.
In this embodiment, frequency division duplex radio circuit may include radio-frequency signal transceiver (rf chip), more
Mould multiband power amplifier, a four work device (or two triplexers), antenna switch module and antenna, to form two frequency ranges
Receiving path and two frequency range transmission paths, a UHF band reception access therein can receive the radiofrequency signal of two frequency ranges,
A frequency range transmission path therein can send the radiofrequency signal of two frequency ranges, thus under the facilities of single antenna, directly
Connecing realizes carrier wave polymerizable functional.
In the present invention, term " first ", " second ", " third " are only used for the purpose of description, and should not be understood as
Instruction implies relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace
The terms such as dress ", " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, it can also
It is to be detachably connected, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.It is right
For those skilled in the art, it can understand that above-mentioned term in the present invention specific contains as the case may be
Justice.
In the description of the utility model, it is to be understood that the fingers such as term "upper", "lower", "left", "right", "front", "rear"
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the utility model and
Simplify description, specific direction must be had, with specific azimuth configuration by not indicating or implying the indicated device or unit
And operation, it is thus impossible to be construed as a limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In can be combined in any suitable manner.
The preferred embodiment that these are only the utility model, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of frequency division duplex radio circuit, which is characterized in that including：
Radio-frequency signal transceiver, including the first UHF band reception end, the second UHF band reception end and radiofrequency signal transmitting terminal；
At least one multiplexer, including the first filtering receiving terminal, the first filtering transmitting terminal, the second filtering receiving terminal and the second filtering
Transmitting terminal forms the first UHF band reception access between the first filtering transmitting terminal and first UHF band reception end, and described the
The second UHF band reception access is formed between two filtering transmitting terminals and second UHF band reception end, the first filtering receiving terminal,
The second filtering receiving terminal forms the first frequency range transmission path and the second frequency range between the radiofrequency signal transmitting terminal respectively
Transmission path；
When first frequency range and second frequency range work at the same time, third frequency is received by the first UHF band reception access
The carrier signal of section, the carrier signal of the third frequency range is sent by the second frequency range transmission path, wherein the third
The reception band limits of frequency range belongs to the reception band limits of first frequency range, with the transmission band limits of the third frequency range
Belong to the transmission band limits of second frequency range.
2. frequency division duplex radio circuit according to claim 1, which is characterized in that
At least one multiplexer is a four work devices.
3. frequency division duplex radio circuit according to claim 1, which is characterized in that
At least one multiplexer includes the first triplexer and the second triplexer, and first triplexer includes first frequency
Section receiving path and the first frequency range transmission path, second triplexer include the second UHF band reception access with it is described
Second frequency range transmission path.
4. frequency division duplex radio circuit according to claim 2 or 3, which is characterized in that further include：
Multimode multi-frequency section power amplifier, including signal input part, the first frequency range transmitting terminal and the second frequency range transmitting terminal, the letter
Number input terminal is connected to the radiofrequency signal transmitting terminal, and the first frequency range transmitting terminal is connected to the first filtering receiving terminal,
The second frequency range transmitting terminal is connected to the second filtering receiving terminal, described in being sent by the second frequency range transmission path
The carrier signal of third frequency range.
5. frequency division duplex radio circuit according to claim 4, which is characterized in that further include：
Combiner, the first end of the combiner are respectively connected to the first filtering receiving terminal and are received with second filtering
End, the second end of the combiner are connected to antenna,
Wherein, the combiner is for will be via the carrier wave of the first frequency range transmission path and the second frequency range transmission path
After signal polymerization, it is sent to the antenna.
6. frequency division duplex radio circuit according to claim 2, which is characterized in that further include：
One end of antenna switch module, the antenna switch module is connected to antenna, and the other end of the antenna switch module connects
It is connected to the four works device,
Wherein, when the antenna switch module is connected, the antenna receives or the first band carrier signal of transmitting, the second frequency range
Carrier signal and third band carrier signal.
7. frequency division duplex radio circuit according to claim 3, which is characterized in that further include：
Controller, is respectively connected to first triplexer and second triplexer, and the controller is for controlling described the
One triplexer is worked at the same time with second triplexer.
8. frequency division duplex radio circuit according to claim 5, it is characterised in that
The combiner is dual-frequency channel merger or tri-frequency combiner.
9. frequency division duplex radio circuit according to any one of claim 1 to 3, which is characterized in that
The transmission band limits of first frequency range is 1920M~1980M, and the reception band limits of first frequency range is
2110M~2170M；
The transmission band limits of second frequency range is 1710M~1785M, and the reception band limits of second frequency range is
1805M~1880M；
The transmission band limits of the third frequency range is 1710M~1755M, and the reception band limits of the third frequency range is
2110M~2155M.
10. a kind of terminal, which is characterized in that including：
Frequency division duplex radio circuit as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721630401.0U CN207766259U (en) | 2017-11-29 | 2017-11-29 | Frequency division duplex radio circuit and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721630401.0U CN207766259U (en) | 2017-11-29 | 2017-11-29 | Frequency division duplex radio circuit and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN207766259U true CN207766259U (en) | 2018-08-24 |
Family
ID=63188939
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721630401.0U Active CN207766259U (en) | 2017-11-29 | 2017-11-29 | Frequency division duplex radio circuit and terminal |
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| CN (1) | CN207766259U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728443A (en) * | 2018-12-10 | 2019-05-07 | 深圳市万普拉斯科技有限公司 | Dual-band antenna framework and intelligent movable equipment |
| CN110233637A (en) * | 2019-06-19 | 2019-09-13 | Oppo（重庆）智能科技有限公司 | A kind of radio circuit and communication equipment |
| CN112702074A (en) * | 2020-12-24 | 2021-04-23 | Oppo广东移动通信有限公司 | Radio frequency circuit |
| CN113162637A (en) * | 2021-04-28 | 2021-07-23 | 上海芯波电子科技有限公司 | System-in-package terminal and method of antenna multiplexer |
| CN114124112A (en) * | 2020-08-27 | 2022-03-01 | 华为技术有限公司 | Radio frequency circuit for transmitting multi-frequency-band signals |
-
2017
- 2017-11-29 CN CN201721630401.0U patent/CN207766259U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728443A (en) * | 2018-12-10 | 2019-05-07 | 深圳市万普拉斯科技有限公司 | Dual-band antenna framework and intelligent movable equipment |
| CN110233637A (en) * | 2019-06-19 | 2019-09-13 | Oppo（重庆）智能科技有限公司 | A kind of radio circuit and communication equipment |
| CN114124112A (en) * | 2020-08-27 | 2022-03-01 | 华为技术有限公司 | Radio frequency circuit for transmitting multi-frequency-band signals |
| CN112702074A (en) * | 2020-12-24 | 2021-04-23 | Oppo广东移动通信有限公司 | Radio frequency circuit |
| CN113162637A (en) * | 2021-04-28 | 2021-07-23 | 上海芯波电子科技有限公司 | System-in-package terminal and method of antenna multiplexer |
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