CN104518836A - Method, device and electronic apparatus for inhibiting harmonic interference - Google Patents
Method, device and electronic apparatus for inhibiting harmonic interference Download PDFInfo
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- CN104518836A CN104518836A CN201310446230.6A CN201310446230A CN104518836A CN 104518836 A CN104518836 A CN 104518836A CN 201310446230 A CN201310446230 A CN 201310446230A CN 104518836 A CN104518836 A CN 104518836A
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Abstract
An embodiment of the present invention provides a method, device and electronic apparatus for inhibiting harmonic interference. The method includes: using a low-frequency stage radio frequency switch and a high-frequency stage radio frequency switch to divide a GSM signal of a GMS device into a high-frequency stage portion and a low-frequency stage portion; and filtering the low-frequency stage portion of the GSM signal. By adoption of the embodiment of the present invention, a triple frequency harmonic component of the low-frequency stage portion of the GSM signal can be inhibited, the harmonic interference in the electronic apparatus having both the GSM device and an LTE device can be reduced, and system performance can be improved.
Description
Technical field
The present invention relates to signal processing technology, particularly the method, device and the electronic equipment that disturb of a kind of harmonic inhabitation.
Background technology
At present along with the development of technology, there is the situation of global system for mobile communications (GSM, GlobalSystem for Mobile communication) module and Long Term Evolution (LTE, Long Term Evolution) module coexist in the terminal.Such as, under GSM and LTE works (SGLTE, Simultaneous GSM and LTE) pattern simultaneously, the situation that a lot of GSM frequency range and TD-LTE frequency range or FDD-LTE frequency range use simultaneously is had.
Usually, two transceivers can work for transmission/reception (TX/RX) simultaneously.In such cases, such as because the third-harmonic component of GSM900 frequency range can fall into the reception band limits of TD-LTE B41/FDD-LTE B7, this humorous wave interference can cause receiving acuity worsens (desense) large in frequency range at B41/B7, and the GSM900 frequency range therefore worked together with TD-LTE B41/FDD-LTE B7 is the situation of most critical.
Fig. 1 is the schematic diagram that in prior art, GSM device and LTE device coexist, as shown in Figure 1, LTE device 101 can comprise transceiver, power amplifier (PA, Power Amplifier), main antenna (Primary Antenna) and auxiliary antenna (Secondary Antenna) etc.GSM device 102 can comprise transceiver, GSM power amplifier, switch (SPxT) and GSM antenna etc.
Inventor finds in prior art, because the triple-frequency harmonics of GSM900 has the same frequency for B41/B7 frequency range, cannot be leached.The situation of humorous wave interference is there is, performance when influential system GSM/LTE uses jointly in the electronic equipment causing GSM device and LTE device to coexist thus.
Above it should be noted that, just conveniently to technical scheme of the present invention, clear, complete explanation is carried out to the introduction of technical background, and facilitate the understanding of those skilled in the art to set forth.Only can not think that technique scheme is conventionally known to one of skill in the art because these schemes have carried out setting forth in background technology part of the present invention.
Summary of the invention
Method, device and electronic equipment that the embodiment of the present invention provides a kind of harmonic inhabitation to disturb.Object is: the electronic equipment coexisted for GSM device and LTE device, the interference of further harmonic inhabitation.
According to an aspect of the embodiment of the present invention, a kind of method providing harmonic inhabitation to disturb, be applied in the electronic equipment that GSM device and LTE device coexist, described method comprises:
Use low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the GSM signal of GSM device is divided into high band part and low-frequency range part;
Filtering is carried out to the low-frequency range part of described GSM signal.
According to another aspect of the embodiment of the present invention, wherein, described filtering is for suppressing the harmonic component of the low-frequency range part of described GSM signal to the interference of the high frequency band signal of described LTE device.
According to another aspect of the embodiment of the present invention, wherein, repeatedly filtering is carried out to the low-frequency range part of described GSM signal, comprising:
Filtering is carried out to the described GSM signal before the described low-frequency range radio-frequency (RF) switch of input; And
Filtering is carried out to the described GSM signal that described low-frequency range radio-frequency (RF) switch exports.
According to another aspect of the embodiment of the present invention, wherein, described method also comprises:
First duplexer is used the high frequency band signal merging of the low-frequency range part of described GSM signal and described LTE device to be outputted on the antenna of described LTE device.
According to another aspect of the embodiment of the present invention, wherein, the antenna of described GSM device is double-fed point antenna, for the high band part of the low-frequency range part and described GSM signal that merge described GSM signal.
According to another aspect of the embodiment of the present invention, wherein, described method also comprises:
The second duplexer is used the high band part merging of the low-frequency range part of described GSM signal and described GSM signal to be outputted on the antenna of described GSM device.
According to another aspect of the embodiment of the present invention, provide the device that a kind of harmonic inhabitation disturbs, described device comprises:
Low-frequency range radio-frequency (RF) switch, for the control of launching the GSM signal of described GSM device and/or receiving, and exports the low-frequency range part of described GSM signal;
High band radio-frequency (RF) switch, for the control of launching the GSM signal of described GSM device and/or receiving, and exports the high band part of described GSM signal;
Filter unit, carries out filtering to the low-frequency range part of described GSM signal.
According to another aspect of the embodiment of the present invention, wherein, described filter unit suppresses the harmonic component of the low-frequency range part of described GSM signal to the interference of the high frequency band signal of described LTE device.
According to another aspect of the embodiment of the present invention, wherein, described filter unit comprises:
First low pass filter, carries out filtering to the described GSM signal before the described low-frequency range radio-frequency (RF) switch of input;
Second low pass filter, carries out filtering to the described GSM signal that described low-frequency range radio-frequency (RF) switch exports.
According to another aspect of the embodiment of the present invention, wherein, described device also comprises:
First duplexer, outputs to the high frequency band signal merging of the low-frequency range part of described GSM signal and described LTE device on the antenna of described LTE device.
According to another aspect of the embodiment of the present invention, wherein, the antenna of described GSM device is double-fed point antenna, for the high band part of the low-frequency range part and described GSM signal that merge described GSM signal.
According to another aspect of the embodiment of the present invention, wherein, described device also comprises:
Second duplexer, outputs to the high band part merging of the low-frequency range part of described GSM signal and described GSM signal on the antenna of described GSM device.
According to another aspect of the embodiment of the present invention, provide a kind of electronic equipment, described electronic equipment comprises GSM device and LTE device; Wherein, described GSM device comprises:
Low-frequency range radio-frequency (RF) switch, to the control that the GSM signal of described GSM device is launched and/or received, and exports the low-frequency range part of described GSM signal;
High band radio-frequency (RF) switch, to the control that the GSM signal of described GSM device is launched and/or received, and exports the high band part of described GSM signal;
Filter unit, carries out filtering to the low-frequency range part of described GSM signal.
According to another aspect of the embodiment of the present invention, wherein said electronic equipment is mobile terminal.
The beneficial effect of the embodiment of the present invention is, by using low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the signal of GSM device is divided into high band part and low-frequency range part, and carries out filtering to the low-frequency range part of GSM signal; Can suppress the third-harmonic component of the low-frequency range part of GSM signal, the humorous wave interference occurred in the electronic equipment that reduction GSM device and LTE device coexist, improves the performance of system.
With reference to description below and accompanying drawing, these and other aspects of the present invention will be known.Describe at these and in accompanying drawing, specifically disclose particular implementation of the present invention, representing some modes implementing principle of the present invention, but should be appreciated that scope of the present invention is not limited.On the contrary, the present invention includes all changes within the scope of the spirit falling into appended claims and intension, amendment and equivalent.
Describe and/or illustrative feature for an execution mode, can use in the same manner or in a similar manner in one or more other execution mode, and/or combine with the feature of other execution modes or replace the feature of other execution modes to use.
It should be emphasized that, term " comprises " existence being used to refer to described feature, important document, step or part when using in this manual, but does not get rid of one or more further feature, important document, step, the existence of part or their combination or increase.
With reference to the following drawings, many aspects of the present invention will be understood better.Part in accompanying drawing is not necessarily drawn in proportion, focuses on clearly exemplifying principle of the present invention.For the ease of illustrating and describing some parts of the present invention, the corresponding part in accompanying drawing can be amplified dimensionally, such as, amplify relative to large than in the example devices made actual in the present invention of other parts.Parts shown in a figure of the present invention or execution mode and feature can combine with the parts shown in one or more other figure or execution mode and feature.In addition, in the accompanying drawings, identical label all indicates corresponding part in whole figure, and can be used for the identical or similar portions in sign more than one execution mode.
Accompanying drawing explanation
Included accompanying drawing is used to provide further understanding of the invention, which constitute a part for specification, exemplified with the preferred embodiment of the present invention, and be used for explaining principle of the present invention together with explanatory note, wherein for identical key element, represent with identical Reference numeral all the time.
In the accompanying drawings:
Fig. 1 is the schematic diagram that in prior art, GSM device and LTE device coexist;
Fig. 2 is a flow process of the method for the harmonic inhabitation interference of the embodiment of the present invention;
Fig. 3 is another flow process of the method for the harmonic inhabitation interference of the embodiment of the present invention;
Fig. 4 is the example schematic that the GSM device of the embodiment of the present invention and LTE device coexist;
Fig. 5 is another flow process of the method for the harmonic inhabitation interference of the embodiment of the present invention;
Fig. 6 is the example schematic that the GSM device of the embodiment of the present invention and LTE device coexist;
Fig. 7 is another flow process of the method for the harmonic inhabitation interference of the embodiment of the present invention;
Fig. 8 is the example schematic that the GSM device of the embodiment of the present invention and LTE device coexist;
Fig. 9 is that one of the device of the harmonic inhabitation interference of the embodiment of the present invention forms schematic diagram;
Figure 10 is a schematic block diagram of the System's composition of the mobile terminal of the embodiment of the present invention.
Embodiment
Interchangeable terms " electronic equipment " and " electronic installation " comprise portable radio communication equipment.Term " portable radio communication equipment " is called as " mobile radio terminal ", " portable electron device " or " portable communication appts " below, comprises the equipment of all such as mobile phones, beep-pager, communicator, electronic notebook, PDA(Personal Digital Assistant), smart phone, portable communication appts etc.
In this application, the portable electron device being mainly mobile phone (also referred to as " mobile phone ") with regard to form describes embodiments of the present invention.But, be to be understood that, the present invention should not be limited to the situation of mobile phone, and can relate to the suitable electronic equipment of any type, and the example of such electronic equipment comprises media player, game station, PDA and computer, digital camera, panel computer etc.
Embodiment 1
A kind of method that the embodiment of the present invention provides harmonic inhabitation to disturb, is applied in the electronic equipment that GSM device and LTE device coexist.Fig. 2 is a flow process of the method for the harmonic inhabitation interference of the embodiment of the present invention, and as shown in Figure 2, described method comprises:
Step 201, uses low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the GSM signal of GSM device is divided into high band part and low-frequency range part;
Step 202, carries out filtering to the low-frequency range part of GSM signal.
In the present embodiment, the harmonic component of the low-frequency range part of GSM signal can be suppressed the interference of the high frequency band signal of LTE device.Particularly, the interference that the third-harmonic component of the low-frequency range part of GSM signal causes can be suppressed, but the present invention is not limited thereto, only be described for the third-harmonic component of the low-frequency range part of GSM signal below.
In the present embodiment, low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch can be High Linear switch (HighLinearity Switch), also can be common high-power RF switches, such as, can be common low frequency SP4T and high frequency SP4T.GSM signal can be divided into low-frequency range part and high band part by low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch.
In the present embodiment, LTE device is construed as the concept of broad sense, such as, can also be universal mobile telecommunications system (UMTS, Universal Mobile Telecommunication System) module or TDS etc.
In the present embodiment, one or many filtering can be carried out to the low-frequency range part of GSM signal.Such as, specifically can comprise: filtering is carried out to the GSM signal before input low-frequency range radio-frequency (RF) switch; And more repeatedly filtering is carried out to the GSM signal that low-frequency range radio-frequency (RF) switch exports.The triple-frequency harmonics of the generation of GSM signal can be suppressed thus, excessive interference can not be produced to the frequency range of LTE device.
Coexist for GSM900 and TD-LTE B41/FDD-LTE B7 in SGLTE pattern below and be described.In CMCC SGLTE phone, GSM900 and TD-LTE B41/FDD-LTE B7 works simultaneously, and GSM900 frequency range is used for voice and TD-LTE B41/FDD-LTE B7 is used for transfer of data.
If employing prior art, such as, scheme shown in Fig. 1, GSM LB(GSM low-frequency range) and GSM HB(GSM high band) use a duplexer (SPxT).TD-LTE B41 is at the frequency range from 2496MHz to 2690MHz; The reception frequency range of FDD-LTE B7 is at the frequency range from 2620MHz to 2690MHz.When the transmission frequency range of GSM900 works in 880MHz to 915MHz scope, its triple-frequency harmonics covers the frequency range from 2640MHz to 2745MHz.Therefore, the triple-frequency harmonics of GSM900 fall into the reception frequency range of B41/B7.
About GSM PA(power amplifier) current state be: third-harmonic component level is about-15dBm.Current state about the GSM duplexer shown in Fig. 1 is: due to for most switch, and the specification of-70dBc is the most popular, and therefore, third-harmonic component level is about-35dBm.The current state of GSM LB LPF is the decay of 35dB for triple-frequency harmonics, therefore, arrives the triple-frequency harmonics of the output of GSM duplexer for being approximately-35dBm.
If use common isolation between antennas value: 10dB isolation, the power level so arriving the triple-frequency harmonics of the GSM of TD-LTE B41/FDD-LTE B7 antenna is about-35dBm-10dB=-45dBm.When the receiving sensitivity of TD-LTEB41/FDD-LTE B7 is: during to 5MHz bandwidth for-98dBm, powerful triple-frequency harmonics can clobber receiving function.If use GSM triple-frequency harmonics rejects trap, because duplexer is the significant contributor of triple-frequency harmonics, therefore situation can't be improved a lot.After using 2 LPF suppressing GSM triple-frequency harmonics, be still about-35dBm in the harmonics level of GSM duplexer.
Therefore, the interference that above-mentioned triple-frequency harmonics causes can not be solved in prior art.The present invention is described in detail below.
In one embodiment, signal isolation can be carried out by duplexer, can use duplexer that the high-frequency signal of the low-frequency range part of GSM signal and LTE device is merged output.Fig. 3 is another flow process of the method for the harmonic inhabitation interference of the embodiment of the present invention, and as shown in Figure 3, described method comprises:
Step 301, uses low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the GSM signal of GSM device is divided into high band part and low-frequency range part;
Step 302, carries out repeatedly filtering to the low-frequency range part of GSM signal, to suppress the third-harmonic component of the low-frequency range part of GSM signal.
Step 303, uses duplexer the high frequency band signal merging of the low-frequency range part of GSM signal and LTE device to be outputted on the antenna of LTE device.
Fig. 4 is the example schematic that the GSM device of the embodiment of the present invention and LTE device coexist, and as shown in Figure 4, LTE device 401 and GSM device 402 co-exist in an electronic equipment; Wherein, GSM device 402 can comprise transceiver, GSM power amplifier, low frequency High Linear switch 4021, high frequency High Linear switch 4022, low pass filter (LPF, Low Pass Filter) 4023 and low pass filter 4024, and GSM antenna etc.
As shown in Figure 4, this electronic equipment can also comprise duplexer 403, and the high frequency band signal of the low-frequency range part of GSM signal and LTE device is isolated by this duplexer 403, is merged into a road and outputs on the antenna of LTE device.Such as be connected on LTE Primary antenna.
In the present embodiment, the triple-frequency harmonics from GSM PA is: third-harmonic component level is about-15dBm.After LPF4023, third-harmonic component level is about-15dBm-35dB=-50dBm.The GSM triple-frequency harmonics that the High Linear switch used generally has is that approximately-60dBm(also has about-50dBm worst); Therefore, in a worst case, GSM third-harmonic component level adds-50dBm for about-50dBm, is approximately-47dBm.
In the present embodiment, between duplexer 4021 and duplexer 403, use the discrete GSMLPF4024 that 15dB suppresses, after duplexer 4021, GSM triple-frequency harmonics can be suppressed further.GSM third-harmonic component is about-47dBm-15dB=-62dBm.Here, the off-the-shelf GSM LPF that 35dB can also be used to suppress, suppresses more harmonic wave, and now insertion loss (insertion loss) is large about 0.35dB; Even if therefore adopt Common radio frequency switch to add the LPF with 35dB, harmonic component also can be greatly suppressed, and cost is that insertion loss (insertion loss) may increase 0.15dB.
While use duplexer 403 merges the high frequency band signal of GSM low-frequency range and LTE, the harmonics restraint of 35dB can be increased.Therefore, GSM third-harmonic component is about-62dBm-35dB=-97dBm.With the GSM harmonic interference signals of-97dBm, the acuity worsens (desense) that LTE receives is less than 1dB.
In the present embodiment, by use duplexer 403, LPF4023 and 4024, and the insertion loss that High Linear switch 4021 and 4022 causes is less than 1.3dB in GSM low-frequency range, is less than 1.2dB at GSM high band, this loss can by GSM PA process to provide enough power outputs.Therefore, present embodiment can make gsm module and receive LTE module co-operation frequency range being less than the acuity worsens of 1dB; And the design for antenna is easier to realize.
In another embodiment, duplexer can be used the high band part of the low-frequency range part of GSM signal and GSM signal to be merged.Fig. 5 is another flow process of the method for the harmonic inhabitation interference of the embodiment of the present invention, and as shown in Figure 5, described method comprises:
Step 501, uses low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the GSM signal of GSM device is divided into high band part and low-frequency range part;
Step 502, carries out repeatedly filtering to the low-frequency range part of GSM signal, to suppress the third-harmonic component of the low-frequency range part of GSM signal.
Step 503, uses duplexer the high band part merging of the low-frequency range part of GSM signal and GSM signal to be outputted on the antenna of GSM device.
Fig. 6 is another example schematic that the GSM device of the embodiment of the present invention and LTE device coexist, and as shown in Figure 6, LTE device 601 and GSM device 602 co-exist in an electronic equipment; Wherein, GSM device 602 can comprise transceiver, GSM power amplifier, low frequency High Linear switch 6021, high frequency High Linear switch 6022, low pass filter 6023 and low pass filter 6024, and GSM antenna etc.
As shown in Figure 6, this electronic equipment can also comprise duplexer 603, and the high band part of the low-frequency range part of GSM signal and GSM signal is isolated by this duplexer 603, is merged into a road and outputs on the antenna of GSM device.
In the present embodiment, GSM low-frequency range uses a High Linear radio-frequency (RF) switch and GSM high band to use a High Linear radio-frequency (RF) switch; GSM low-frequency range and GSM high band can be separated.Thus, the triple-frequency harmonics from GSM PA is: third-harmonic component level is about-15dBm.After LPF6023, third-harmonic component level is about-15dBm-35dB=-50dBm.The GSM triple-frequency harmonics that the High Linear switch used generally has is that approximately-60dBm(also has about-50dBm worst), therefore, in a worst case, GSM third-harmonic component level adds-50dBm for about-50dBm, is approximately-47dBm.
In the present embodiment, between duplexer 6021 and duplexer 603, use the discrete GSMLPF6024 that 10dB suppresses, after duplexer 6021, GSM triple-frequency harmonics can be suppressed further.GSM third-harmonic component is about-47dBm-10dB=-57dBm.
While use duplexer 603 merges the signal of GSM low-frequency range and GSM high band, the harmonics restraint of 30dB can be obtained.Therefore, GSM third-harmonic component is about-57dBm-30dB=-87dBm.If use common isolation between antennas value: 10dB isolation, the power level so arriving the triple-frequency harmonics of the GSM of TD-LTE B41/FDD-LTE B7 antenna is about-87dBm-10dB=-97dBm.With the GSM signal of-97dBm, the acuity worsens that LTE receives is less than 1dB.
In the present embodiment, by use duplexer 603, LPF6023 and 6024, and the insertion loss that High Linear radio-frequency (RF) switch 6021 and 6022 causes is less than 1.3dB in GSM low-frequency range, is less than 1.2dB at GSM high band, this loss can by GSM PA process to provide enough power outputs.Therefore, present embodiment can make gsm module and LTE module co-operation, receives sensitization deterioration in frequency range be less than 1dB in LTE module.
In another embodiment, the antenna of GSM device can be double-fed point antenna, can merge the low-frequency range part of GSM signal and the high band part of GSM signal.Fig. 7 is another flow process of the method for the harmonic inhabitation interference of the embodiment of the present invention, and as shown in Figure 7, described method comprises:
Step 701, uses low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the GSM signal of GSM device is divided into high band part and low-frequency range part;
Step 702, carries out repeatedly filtering to the low-frequency range part of GSM signal, to suppress the third-harmonic component of the low-frequency range part of GSM signal.
Step 703, uses double-fed point antenna to merge the low-frequency range part of GSM signal and the high band part of GSM signal.
In the present embodiment, owing to employing double-fed point antenna, duplexer can be saved.
Fig. 8 is another example schematic that the GSM device of the embodiment of the present invention and LTE device coexist, and as shown in Figure 8, LTE device 801 and GSM device 802 co-exist in an electronic equipment; Wherein, GSM device 802 can comprise transceiver, GSM power amplifier, low frequency High Linear switch 8021, high frequency High Linear switch 8022, low pass filter 8023 and low pass filter 8024, and GSM double-fed point antenna etc.
In the present embodiment, the triple-frequency harmonics from GSM PA is: third-harmonic component level is about-15dBm.After LPF8023, third-harmonic component level is about-15dBm-35dB=-50dBm.The High Linear switch used generally has GSM triple-frequency harmonics, and size is that approximately-60dBm(also has about-50dBm worst), therefore, in a worst case, GSM third-harmonic component level adds-50dBm for about-50dBm, is approximately-47dBm.
In the present embodiment, between duplexer 8021 and GSM antenna, use the GSM LPF8024 that 40dB suppresses, GSM triple-frequency harmonics can be suppressed further.GSM third-harmonic component is about-47dBm-40dB=-87dBm.Double-fed point antenna (low-frequency range and high band) is used directly to merge the signal of GSM low-frequency range and GSM high band; GSM third-harmonic component is about-87dBm.If use common isolation between antennas value: 10dB isolation, the power level so arriving the triple-frequency harmonics of the GSM of TD-LTE B41/FDD-LTE B7 antenna is about-87dBm-10dB=-97dBm.With the GSM signal of-97dBm, the acuity worsens that LTE receives is less than 1dB.
In the present embodiment, by use LPF8023 and 8024, and the insertion loss that High Linear switch 8021 and 8022 causes is less than 1.2dB in GSM low-frequency range, is less than 0.6dB at GSM high band, and this loss can by GSMPA process to provide enough power outputs.This uses double-fed point GSM antenna and without the benefit of duplexer, it contributes to reducing the insertion loss in GSM high band.Therefore, present embodiment can make GSM and LTE module co-operation, receives acuity worsens in frequency range be less than 1dB at LTE, and little on the impact of GSM high band.
It should be noted that and only to schematically illustrate invention has been above, but the present invention is not limited thereto.Such as, all parts in accompanying drawing 4,6,8 is only in order to the example that the present invention provides is described, can also adopt other parts or structure according to actual conditions.
From above-described embodiment, by using low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the signal of GSM device is divided into high band part and low-frequency range part, and repeatedly filtering is carried out to the low-frequency range part of GSM signal; Can suppress the third-harmonic component of the low-frequency range part of GSM signal, the humorous wave interference occurred in the electronic equipment that reduction GSM device and LTE device coexist, improves the performance of system.
Embodiment 2
The device that the embodiment of the present invention provides a kind of harmonic inhabitation to disturb, suppresses the humorous wave interference that GSM device and LTE device coexist and produce.The present invention corresponds to the method for the harmonic inhabitation interference in embodiment 1, and identical content repeats no more.
Fig. 9 is that one of the device of the harmonic inhabitation interference of the embodiment of the present invention forms schematic diagram, and as shown in Figure 9, described device 900 comprises:
Low-frequency range radio-frequency (RF) switch 901, for the control of launching the GSM signal of GSM device and/or receiving, and exports the low-frequency range part of GSM signal;
High band radio-frequency (RF) switch 902, for the control of launching the GSM signal of GSM device and/or receiving, and exports the high band part of GSM signal;
Filter unit 903, carries out filtering to the low-frequency range part of GSM signal.
In the present embodiment, filter unit 903 can carry out one or many filtering, and the third-harmonic component of the low-frequency range part of GSM signal can be suppressed the interference of the high frequency band signal of LTE device.
In the present embodiment, filter unit 903 can comprise: the first low pass filter and the second low pass filter.First low pass filter carries out filtering to the GSM signal before input low-frequency range radio-frequency (RF) switch 901; Second low pass filter carries out filtering to the GSM signal that low-frequency range radio-frequency (RF) switch 901 exports.
In one embodiment, described device 900 can also comprise: first duplexer, the high frequency band signal merging of the low-frequency range part of GSM signal and LTE device is outputted on the antenna of LTE device.
In another embodiment, the antenna of GSM device can be double-fed point antenna, for the high band part of the low-frequency range part and GSM signal that merge GSM signal.
In another embodiment, described device 900 can also comprise: the second duplexer, the high band part merging of the low-frequency range part of GSM signal and GSM signal is outputted on the antenna of GSM device.
In the present embodiment, the device of this harmonic inhabitation interference can be integrated in GSM device, also can be arranged at respectively in GSM device and LTE device, can also be formed as the module independent of GSM device and LTE device; Concrete execution mode can be determined according to actual conditions.
From above-described embodiment, by using low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the signal of GSM device is divided into high band part and low-frequency range part, and repeatedly filtering is carried out to the low-frequency range part of GSM signal; Can suppress the third-harmonic component of the low-frequency range part of GSM signal, the humorous wave interference occurred in the electronic equipment that reduction GSM device and LTE device coexist, improves the performance of system.
Embodiment 3
The embodiment of the present invention provides a kind of electronic equipment, and described electronic equipment comprises GSM device and LTE device.The present invention corresponds to embodiment 1 or 2, and identical content repeats no more.
Wherein, described GSM device comprises:
Low-frequency range radio-frequency (RF) switch, for the control of launching the GSM signal of GSM device and/or receiving, and exports the low-frequency range part of GSM signal;
High band radio-frequency (RF) switch, for the control of launching the GSM signal of GSM device and/or receiving, and exports the high band part of GSM signal;
Filter unit, carries out filtering to the low-frequency range part of GSM signal.
In the present embodiment, filter unit can carry out one or many filtering, and the third-harmonic component of the low-frequency range part of GSM signal can be suppressed the interference of the high frequency band signal of LTE device.
In the present embodiment, electronic equipment can be mobile terminal, but the present invention is not limited thereto.
Figure 10 is a schematic block diagram of the System's composition of the mobile terminal 1000 of the embodiment of the present invention, which includes communication module 110, and this communication module 110 can comprise GSM device 1001 and LTE device 1002.Wherein, GSM device 1001 comprises the device of harmonic inhabitation as described in Example 2 interference.
As shown in Figure 10, this mobile terminal 1000 can also comprise central processing unit 100, input unit 120, audio treatment unit 130, memory 140, camera 150, display 160, power supply 170.
This central processing unit 100(, sometimes also referred to as controller or operational controls, can comprise microprocessor or other processor devices and/or logic device) receive and input and control various piece and the operation of mobile terminal 1000.Input unit 120 provides input to central processing unit 100.This input unit 120 is such as button or touch input device.The view data of picked-up for pickup image data, and is supplied to central processing unit 100 by camera 150, uses in a conventional manner, such as, carries out storing, transmission etc.
Power supply 170 is for providing electric power to mobile terminal 1000.Display 160 is for carrying out the display of the display object such as image and word.This display such as can be LCD display, but is not limited to this.
Memory 140 is coupled to central processing unit 100.This memory 140 can be solid-state memory, such as, and read-only memory (ROM), random-access memory (ram), SIM card etc.Can also be such memory, even if it also preserves information when power-off, selectively wipe and be provided with more data, the example of this memory be sometimes referred to as EPROM etc.Memory 140 can also be the device of certain other type.Memory 140 comprises buffer storage 141(sometimes referred to as buffer).Memory 140 can comprise applications/functions storage part 142, and this applications/functions storage part 142 is for storing application program and function program or the flow process for the operation that performed mobile terminal 1000 by central processing unit 100.
Memory 140 can also comprise data store 143, this data store 143 for storing data, such as contact person, numerical data, picture, sound and/or any other data used by electronic equipment.The driver store portion 144 of memory 140 can comprise electronic equipment for communication function and/or the various drivers for other functions (transmitting application, address list application etc. as message) of performing electronic equipment.
Audio process 130 can comprise any suitable buffer, decoder, amplifier etc.In addition, audio process 130 is also coupled to central processing unit 100, thus makes it possible to be recorded in the machine by microphone 132, and makes it possible to play by loud speaker 131 sound that the machine stores.
The embodiment of the present invention also provides a kind of computer-readable program, wherein when performing described program in the electronic device, described program make computer perform in described electronic equipment as above as described in embodiment 1 harmonic inhabitation interference method.
The embodiment of the present invention also provides a kind of storage medium storing computer-readable program, and wherein said computer-readable program makes computer perform the method for the harmonic inhabitation interference above described in embodiment 1 in the electronic device.
More than describe the preferred embodiment of the present invention with reference to the accompanying drawings.Many feature and advantage of these execution modes are clearly according to this detailed description book, and therefore claims are intended to all these feature and advantage fallen in its true spirit and scope covering these execution modes.In addition, owing to those skilled in the art will find apparent that a lot of amendment and changing, therefore not embodiments of the present invention to be limited to precision architecture that is illustrated and that describe and operation, but can contain and fall into all suitable modifications within the scope of it and equivalent.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, any one in the following technology can known altogether with this area or their combination realize: the discrete logic with the logic gates for realizing logic function to data-signal, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
To describe or frame can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step in specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein, can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should those skilled in the art described by the present invention understand.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.
Above-mentioned explanatory note and accompanying drawing show various different feature of the present invention.Should be appreciated that those of ordinary skill in the art describe and each step illustrative and process in the accompanying drawings above can preparing suitable computer code to realize.It is also understood that above-described various terminal, computer, server, network etc. can be any types, and described computer code can be prepared according to disclosure and realize the present invention to utilize described device.
Particular implementation of the present invention is disclosed at this.Those of ordinary skill in the art will readily appreciate that, the present invention has other application in other circumstances.In fact, also there is many execution modes and realization.Claims are absolutely not in order to limit the scope of the present invention to above-mentioned embodiment.In addition, arbitrarily for " for ... device " to quote be all the explaination that device in order to describe key element and claim adds function, and specifically do not use arbitrarily " for ... device " the key element quoted do not wish to be understood to that device adds the element of function, even if this claim includes the word of " device ".
Although illustrate and describe the present invention for certain preferred embodiments or multiple execution mode, obviously, those skilled in the art are reading and can expect the modification that is equal to and modified example when understanding specification and accompanying drawing.Especially for the various functions performed by above-mentioned key element (parts, assembly, device, form), unless otherwise noted, wish that (namely the term (comprising quoting of " device ") for describing these key elements corresponds to any key element of the concrete function performing described key element, function equivalent), even if this key element is structurally different from the open structure performing this function in illustrated illustrative embodiments of the present invention or multiple execution mode.In addition, although below in several illustrative execution mode only one or more describes specific features of the present invention, as required and from the viewpoint of to any given or embody rule is favourable, but this feature can be combined with one or more other features of other execution modes.
Claims (14)
1. a method for harmonic inhabitation interference, be applied in the electronic equipment that GSM device and LTE device coexist, described method comprises:
Use low-frequency range radio-frequency (RF) switch and high band radio-frequency (RF) switch that the GSM signal of described GSM device is divided into high band part and low-frequency range part;
Filtering is carried out to the low-frequency range part of described GSM signal.
2. method according to claim 1, wherein, described filtering is for suppressing the harmonic component of the low-frequency range part of described GSM signal to the interference of the high frequency band signal of described LTE device.
3. method according to claim 1, wherein, repeatedly filtering is carried out to the low-frequency range part of described GSM signal, comprising:
Filtering is carried out to the described GSM signal before the described low-frequency range radio-frequency (RF) switch of input; And
Filtering is carried out to the described GSM signal that described low-frequency range radio-frequency (RF) switch exports.
4. the method according to any one of claims 1 to 3, wherein, described method also comprises:
First duplexer is used the high frequency band signal merging of the low-frequency range part of described GSM signal and described LTE device to be outputted on the antenna of described LTE device.
5. the method according to any one of claims 1 to 3, wherein, the antenna of described GSM device is double-fed point antenna, for the high band part of the low-frequency range part and described GSM signal that merge described GSM signal.
6. the method according to any one of claims 1 to 3, wherein, described method also comprises:
The second duplexer is used the high band part merging of the low-frequency range part of described GSM signal and described GSM signal to be outputted on the antenna of described GSM device.
7. a device for harmonic inhabitation interference, described device comprises:
Low-frequency range radio-frequency (RF) switch, for the control of launching the GSM signal of described GSM device and/or receiving, and exports the low-frequency range part of described GSM signal;
High band radio-frequency (RF) switch, for the control of launching the GSM signal of described GSM device and/or receiving, and exports the high band part of described GSM signal;
Filter unit, carries out filtering to the low-frequency range part of described GSM signal.
8. device according to claim 7, wherein, described filter unit suppresses the harmonic component of the low-frequency range part of described GSM signal to the interference of the high frequency band signal of described LTE device.
9. device according to claim 7, wherein, described filter unit comprises:
First low pass filter, carries out filtering to the described GSM signal before the described low-frequency range radio-frequency (RF) switch of input;
Second low pass filter, carries out filtering to the described GSM signal that described low-frequency range radio-frequency (RF) switch exports.
10. the device according to any one of claim 7 to 9, wherein, described device also comprises:
First duplexer, outputs to the high frequency band signal merging of the low-frequency range part of described GSM signal and described LTE device on the antenna of described LTE device.
11. devices according to any one of claim 7 to 9, wherein, the antenna of described GSM device is double-fed point antenna, for the high band part of the low-frequency range part and described GSM signal that merge described GSM signal.
12. devices according to any one of claim 7 to 9, wherein, described device also comprises:
Second duplexer, outputs to the high band part merging of the low-frequency range part of described GSM signal and described GSM signal on the antenna of described GSM device.
13. 1 kinds of electronic equipments, described electronic equipment comprises GSM device and LTE device; Wherein, described GSM device comprises:
Low-frequency range radio-frequency (RF) switch, for the control of launching the GSM signal of described GSM device and/or receiving, and exports the low-frequency range part of described GSM signal;
High band radio-frequency (RF) switch, for the control of launching the GSM signal of described GSM device and/or receiving, and exports the high band part of described GSM signal;
Filter unit, carries out filtering to the low-frequency range part of described GSM signal.
14. electronic equipments according to claim 13, wherein said electronic equipment is mobile terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310446230.6A CN104518836A (en) | 2013-09-26 | 2013-09-26 | Method, device and electronic apparatus for inhibiting harmonic interference |
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| CN201310446230.6A CN104518836A (en) | 2013-09-26 | 2013-09-26 | Method, device and electronic apparatus for inhibiting harmonic interference |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286703A (en) * | 2018-09-28 | 2019-01-29 | 维沃移动通信有限公司 | A kind of control circuit and terminal |
| CN110545114A (en) * | 2019-08-12 | 2019-12-06 | 佳讯飞鸿（北京）智能科技研究院有限公司 | railway wireless communication terminal based on LTE-R |
| US20210344369A1 (en) * | 2018-11-21 | 2021-11-04 | Huizhou Tcl Mobile Communication Co., Ltd. | Method for reducing sglte coupling de-sense and mobile terminal |
-
2013
- 2013-09-26 CN CN201310446230.6A patent/CN104518836A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286703A (en) * | 2018-09-28 | 2019-01-29 | 维沃移动通信有限公司 | A kind of control circuit and terminal |
| CN109286703B (en) * | 2018-09-28 | 2021-01-08 | 维沃移动通信有限公司 | Control circuit and terminal |
| US20210344369A1 (en) * | 2018-11-21 | 2021-11-04 | Huizhou Tcl Mobile Communication Co., Ltd. | Method for reducing sglte coupling de-sense and mobile terminal |
| US11522569B2 (en) * | 2018-11-21 | 2022-12-06 | Huizhou Tcl Mobile Communication Co., Ltd. | Method for reducing SGLTE coupling de-sense and mobile terminal |
| CN110545114A (en) * | 2019-08-12 | 2019-12-06 | 佳讯飞鸿（北京）智能科技研究院有限公司 | railway wireless communication terminal based on LTE-R |
| CN110545114B (en) * | 2019-08-12 | 2021-10-22 | 佳讯飞鸿（北京）智能科技研究院有限公司 | Railway wireless communication terminal based on LTE-R |
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