CN102882537A - Terminal and method for reducing mutual interference of communication modules - Google Patents
Terminal and method for reducing mutual interference of communication modules Download PDFInfo
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- CN102882537A CN102882537A CN201210385577XA CN201210385577A CN102882537A CN 102882537 A CN102882537 A CN 102882537A CN 201210385577X A CN201210385577X A CN 201210385577XA CN 201210385577 A CN201210385577 A CN 201210385577A CN 102882537 A CN102882537 A CN 102882537A
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Abstract
The invention provides a terminal which comprises a first communication module and a second communication module and further comprises a sampling and processing unit and a signal superposition unit. The sampling and processing unit is used for sampling transmitting signals of the first communication module, conducting phase processing on obtained sampling signals, enable phases of the sampling signals to be reverse to those of the transmitting signals, and the signal superposition unit is used for superposition of phase reversal signals obtained after phase processing and receipt signals corresponding to the transmitting signals and received by the second communication module. The invention further provides a method for reducing mutual interference of communication modules. By means of the technical scheme, signals can be collected and processed from one communication module, processed signals are overlapped with interference signals received by the other communication module to reduce strength of the interference signals, and the mutual interference of communication modules can be reduced on the premise of increasing no distance between antennae of the two communication modules.
Description
Technical field
The present invention relates to communication technical field, in particular to a kind of terminal with a kind ofly reduce the method that communication module is disturbed mutually.
Background technology
Existing double card double standby mobile phone, respectively there is an antenna in the upper and lower of mobile phone, disturbs mutually solution of problem, mainly realize by the isolation that increases between the two module respective antenna, spatially the distance between two antennas is pulled open maximum, increase the isolation between two antennas.
But because the size of mobile phone can not infinitely increase; thereby antenna is limited apart from isolation effect; and because the classification of bimodulus machine assembly constantly increases C/G combination, TD/G combination; the TD/WCDMA combination; TD/LTE combination etc., the operating frequency between the module is on the increase, and the operating frequency of dual-card dual-standby terminal two modules is also very approaching; cause the isolation between two antennas to be not enough to deal with problems fully, disturbing mutually between the communication module is still very serious.
Therefore, need a kind of technology that communication module is disturbed mutually that reduces, can and process from a communication module collection signal, make the intensity that can reduce interference signal after the interference signal stack that receives of signal after the processing and another communication module, thereby under the prerequisite that does not increase distance between two communication module antennas, reduce disturbing mutually between the communication module.
Summary of the invention
The present invention just is being based on the problems referred to above, a kind of terminal has been proposed, can and process from a communication module collection signal, make the intensity that can reduce interference signal after the interference signal stack that receives of signal after the processing and another communication module, thereby under the prerequisite that does not increase distance between two communication module antennas, reduce disturbing mutually between the communication module.
In view of this, the present invention proposes a kind of terminal, comprise first communication module and second communication module, also comprise: sampling and processing unit, be used for transmitting of described first communication module sampled, and the sampled signal that obtains carried out Phase Processing, make described sampled signal and described transmit anti-phase; The signal superpositing unit, being used for will be through superposeing corresponding to the described reception signal that transmits that the anti-phase sampled signal that obtains after the described Phase Processing and described second communication module receive.
In this technical scheme, dual-card dual-standby terminal comprises two communication modules, communication module A and communication module B, when two communication modules are worked simultaneously, communication module B can receive transmitting of communication module A, this transmits to receive the signal of communication module B itself and causes interference, is interference signal with respect to communication module B namely.Sampling from the transmitting of communication module A, because the sampled signal of the communication module A of same time is identical with the phase place that transmits of communication module A, the single spin-echo of the interference signal that receives through the sampled signal after anti-phase and communication module B so, thereby eliminate or weakening through the interference signal from communication module A that just communication module B can be received after the stack again, realize reducing communication module A to the interference of communication module B.
In like manner, also can pass through to reduce communication module B to the interference of communication module A with upper type, thereby can under the prerequisite of the distance that does not increase by two communication module antennas, reduce disturbing mutually between the communication module in the dual-card dual-standby terminal.Simultaneously, in order to prevent causing confusion when signal processed, can adopt two circuits respectively communication module A to be sampled to communication module B, communication module B to transmitting of communication module A and process; Certainly, if can reasonable arrangement good to the both sides communication module signal sampling and sequential, the sequential scheduling problem of the operation such as processing, obviously also can realize by a circuit.
In technique scheme, preferably, described sampling and processing unit also are used for: described sampled signal or described anti-phase sampled signal are carried out amplitude regulate, make the difference of amplitude of the amplitude of described sampled signal after the adjusting or described anti-phase sampled signal and described reception signal less than preset difference value.
In this technical scheme, regulate by carrying out amplitude, can make the sampled signal after anti-phase more approaching with the amplitude of interference signal, stack afterwards can be in the intensity that reduces to a greater extent interference signal, even the destructive interference signal, thereby better reduce disturbing mutually between the communication module.
In technique scheme, preferably, described sampling and processing unit comprise: the first coupler, inverter or phase shifter, attenuator; Described signal superpositing unit comprises: the second coupler or the first resistance-capacitance circuit; Wherein, described the first coupler is used for obtaining described sampled signal; Described inverter or phase shifter are used for described sampled signal is carried out described Phase Processing, to obtain described anti-phase sampled signal; Described attenuator is used for according to default attenuation ratio described sampled signal or described anti-phase sampled signal being carried out described amplitude adjusting; Described the second coupler or described the first resistance-capacitance circuit are used for will be through the sampled signal after described Phase Processing and the adjusting of described amplitude and the stack of described reception signal.
In this technical scheme, can from the transmitting an of communication module, obtain sampled signal by a coupler, the energy of sampled signal is on energy 0.1% order of magnitude that transmits, substantially can not impact transmitting, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, again by attenuator with the range-adjusting of anti-phase sampled signal to equating with the amplitude of the reception signal of another communication module, pass through at last another coupler or a resistance-capacitance circuit (by resistance, the devices such as electric capacity build circuit) this anti-phase sampled signal of reception, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
In technique scheme, preferably, described sampling and processing unit comprise: the 3rd coupler, attenuator; Described signal superpositing unit comprises: the 4th coupler; Wherein, described the 3rd coupler is used for obtaining described sampled signal, and described sampled signal is carried out 90 ° phase shift processing; Described attenuator is used for according to default attenuation ratio the sampled signal after processing through described phase shift being carried out described amplitude to be regulated; Described the 4th coupler is used for that the sampled signal after regulating through described amplitude is carried out 90 ° phase shift to be processed, obtaining described anti-phase sampled signal, and will described anti-phase sampled signal and described reception signal superpose.
In this technical scheme, can from the transmitting an of communication module, obtain sampled signal by a coupler, then utilize the phase shift function of coupler itself, sampled signal carried out 90 ° phase shift, extremely equate with the amplitude of interference signal by the range-adjusting of attenuator with anti-phase sampled signal again, at last by the sampled signal of another coupler reception through 90 ° of phase shifts, step of going forward side by side is carried out 90 ° phase shift, make the phase place of sampled signal altogether move 180 °, obtain anti-phase sampled signal, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
In technique scheme, preferably, described sampling and processing unit comprise: the second resistance-capacitance circuit and inverter or phase shifter; Described signal superpositing unit comprises: the 3rd resistance-capacitance circuit or the 5th coupler; Wherein, described the second resistance-capacitance circuit is used for obtaining described sampled signal, and according to default attenuation ratio described sampled signal is carried out described amplitude and regulate, and wherein, the attribute of the capacitance resistance ware in described the second resistance-capacitance circuit is corresponding to described default attenuation ratio; Described inverter or phase shifter are used for the sampled signal after regulating through described amplitude is carried out described Phase Processing, to obtain described anti-phase sampled signal; Described the 3rd resistance-capacitance circuit or the 5th coupler are used for described anti-phase sampled signal and the stack of described reception signal.
In this technical scheme, can from the transmitting an of communication module, obtain sampled signal by a resistance-capacitance circuit, and by selecting the value of the device such as resistance and electric capacity in the resistance-capacitance circuit, the ratio of energy is obtained in setting from transmit, thereby the amplitude of control sampled signal, make the amplitude and interference signal of sampled signal) amplitude equate, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, owing to anti-phase sampled signal equates with single spin-echo and the amplitude that interference signal receives signal, can be so that interference signal reception signal be weakened or counteracting after the process stack.
In technique scheme, preferably, described sampling and processing unit comprise: the 4th resistance-capacitance circuit, inverter or phase shifter, attenuator; Described signal superpositing unit comprises: the 5th resistance-capacitance circuit or the 6th coupler; Wherein, described the 4th resistance-capacitance circuit is used for obtaining described sampled signal; Described inverter or phase shifter are used for described sampled signal is carried out described Phase Processing, to obtain described anti-phase sampled signal; Described attenuator is used for according to default attenuation ratio described sampled signal or described anti-phase sampled signal being carried out described amplitude adjusting; Described the 5th resistance-capacitance circuit or described the 6th coupler are used for will be through the sampled signal after described Phase Processing and the adjusting of described amplitude and the stack of described reception signal.
In this technical scheme, can from the transmitting an of communication module, obtain sampled signal by a resistance-capacitance circuit, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, extremely equate with the amplitude of interference signal by the range-adjusting of attenuator with anti-phase sampled signal again, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
Need to prove, in above every kind of processing mode sampled signal is carried out the step that Phase Processing and amplitude regulate and all can exchange mutually, can reach the effect that reduction is disturbed mutually equally.
According to another aspect of the invention, also proposed a kind of method that communication module is disturbed mutually that reduces, having comprised: step 202, the transmitting of first communication module of terminal sampled; Step 204 is carried out Phase Processing to the sampled signal that obtains, and makes described sampled signal and describedly transmits anti-phasely, obtains anti-phase sampled signal; Step 206, with described anti-phase sampled signal and described second communication module receive corresponding to the described reception signal stack that transmits.
In this technical scheme, dual-card dual-standby terminal comprises two communication modules, communication module A and communication module B, when two communication modules are worked simultaneously, communication module B can receive transmitting of communication module A, this transmits to receive the signal of communication module B itself and causes interference, is interference signal with respect to communication module B namely.Sampling from the transmitting of communication module A, because the sampled signal of the communication module A of same time is identical with the phase place that transmits of communication module A, the single spin-echo of the interference signal that receives through the sampled signal after anti-phase and communication module B so, thereby eliminate or weakening through the interference signal from communication module A that just communication module B can be received after the stack again, realize reducing communication module A to the interference of communication module B.
In like manner, also can pass through to reduce communication module B to the interference of communication module A with upper type, thereby can under the prerequisite of the distance that does not increase by two communication module antennas, reduce disturbing mutually between the communication module in the dual-card dual-standby terminal.Simultaneously, in order to prevent causing confusion when signal processed, can adopt two circuits respectively communication module A to be sampled to communication module B, communication module B to transmitting of communication module A and process; Certainly, if can reasonable arrangement good to the both sides communication module signal sampling and sequential, the sequential scheduling problem of the operation such as processing, obviously also can realize by a circuit.
In technique scheme, preferably, described step 204 also comprises: described sampled signal or described anti-phase sampled signal are carried out amplitude regulate, make the difference of amplitude of the amplitude of described sampled signal after the adjusting or described anti-phase sampled signal and described reception signal less than preset difference value.
In this technical scheme, regulate by carrying out amplitude, can make the sampled signal after anti-phase more approaching with the amplitude of interference signal, stack afterwards can be in the intensity that reduces to a greater extent interference signal, even the destructive interference signal, thereby better reduce disturbing mutually between the communication module.
In technique scheme, preferably, described step 202 comprises: obtain described sampled signal by the first coupler; Described step 204 comprises: by inverter or phase shifter described sampled signal is carried out described Phase Processing, obtaining described anti-phase sampled signal, and according to default attenuation ratio described sampled signal or described anti-phase sampled signal are carried out described amplitude by attenuator and regulate; Described step 206 comprises: will be through the sampled signal after described Phase Processing and the adjusting of described amplitude and the stack of described reception signal by the second coupler or the first resistance-capacitance circuit.
In this technical scheme, can from the transmitting an of communication module, obtain sampled signal by a coupler, the energy of sampled signal is on energy 0.1% order of magnitude that transmits, substantially can not impact transmitting, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, again by attenuator with the range-adjusting of anti-phase sampled signal to equating with the amplitude of the reception signal of another communication module, pass through at last another coupler or a resistance-capacitance circuit (by resistance, the devices such as electric capacity build circuit) this anti-phase sampled signal of reception, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
In technique scheme, preferably, described step 202 comprises: obtain described sampled signal by the 3rd coupler; Described step 204 comprises: described sampled signal is carried out 90 ° phase shift processing by described the 3rd coupler, and according to default attenuation ratio described anti-phase sampled signal is carried out described amplitude by attenuator and regulate; Described step 206 comprises: by described the 4th coupler the sampled signal after regulating through described amplitude is carried out 90 ° phase shift and processes, obtaining described anti-phase sampled signal, and will described anti-phase sampled signal and described reception signal superpose.
In this technical scheme, can from the transmitting an of communication module, obtain sampled signal by a coupler, then utilize the phase shift function of coupler itself, sampled signal carried out 90 ° phase shift, extremely equate with the amplitude of interference signal by the range-adjusting of attenuator with anti-phase sampled signal again, at last by the sampled signal of another coupler reception through 90 ° of phase shifts, step of going forward side by side is carried out 90 ° phase shift, make the phase place of sampled signal altogether move 180 °, obtain anti-phase sampled signal, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
In technique scheme, preferably, described step 202 comprises: obtain described sampled signal by the second resistance-capacitance circuit; Described step 204 comprises: by described the second resistance-capacitance circuit, according to default attenuation ratio described sampled signal being carried out described amplitude regulates, and by inverter or phase shifter the sampled signal after regulating through described amplitude is carried out described Phase Processing, to obtain described anti-phase sampled signal; Described step 206 comprises: by the 3rd resistance-capacitance circuit or the 5th coupler described anti-phase sampled signal and described reception signal are superposeed.
In this technical scheme, can from the transmitting an of communication module, obtain sampled signal by a resistance-capacitance circuit, and by selecting the value of the device such as resistance and electric capacity in the resistance-capacitance circuit, the ratio of energy is obtained in setting from transmit, thereby the amplitude of control sampled signal, make the amplitude and interference signal of sampled signal) amplitude equate, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, owing to anti-phase sampled signal equates with single spin-echo and the amplitude that interference signal receives signal, can be so that interference signal reception signal be weakened or counteracting after the process stack.
In technique scheme, preferably, described step 202 comprises: obtain described sampled signal by the 4th resistance-capacitance circuit; Described step 204 comprises: by inverter or phase shifter the sampled signal after regulating through described amplitude is carried out described Phase Processing, obtaining described anti-phase sampled signal, and according to default attenuation ratio described anti-phase sampled signal is carried out described amplitude by attenuator and regulate; Described step 206 comprises: will be through the sampled signal after described Phase Processing and the adjusting of described amplitude and the stack of described reception signal by the 5th resistance-capacitance circuit or the 6th coupler.
In this technical scheme, can from the transmitting an of communication module, obtain sampled signal by a resistance-capacitance circuit, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, extremely equate with the amplitude of interference signal by the range-adjusting of attenuator with anti-phase sampled signal again, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
Need to prove, in above every kind of method sampled signal is carried out the step that Phase Processing and amplitude regulate and all can exchange mutually, can reach the effect that reduction is disturbed mutually equally.
By above technical scheme, can and process from a communication module collection signal, make the intensity that can reduce interference signal after the interference signal stack that receives of signal after the processing and another communication module, thereby under the prerequisite that does not increase distance between two communication module antennas, reduce disturbing mutually between the communication module.
Description of drawings
Fig. 1 shows the according to an embodiment of the invention block diagram of terminal;
Fig. 2 shows the flow chart that reduces according to an embodiment of the invention the method that communication module disturbs mutually;
Fig. 3 shows according to an embodiment of the invention a kind of structural representation of terminal;
Fig. 4 shows the according to an embodiment of the invention structural representation of another kind of terminal;
Fig. 5 shows the according to an embodiment of the invention structural representation of another terminal;
Fig. 6 shows the according to an embodiment of the invention structural representation of another terminal;
Fig. 7 shows the according to an embodiment of the invention structural representation of another terminal;
Fig. 8 shows the according to an embodiment of the invention structural representation of another terminal;
Fig. 9 shows the according to an embodiment of the invention structural representation of another terminal;
Figure 10 shows the according to an embodiment of the invention structural representation of another terminal.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments the present invention is further described in detail.Need to prove, in the situation that do not conflict, the application's embodiment and the feature among the embodiment can make up mutually.
A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subjected to the restriction of following public specific embodiment.
Fig. 1 shows the according to an embodiment of the invention block diagram of terminal.
As shown in Figure 1, terminal 100 comprises according to an embodiment of the invention: comprise first communication module and second communication module, also comprise: sampling and processing unit 102, be used for transmitting of first communication module sampled, and the sampled signal that obtains carried out Phase Processing, make sampled signal and described transmit anti-phase; Signal superpositing unit 106, being used for will be through superposeing corresponding to the reception signal that transmits that the anti-phase sampled signal that obtains after the described Phase Processing and second communication module receive.
Dual-card dual-standby terminal 100 comprises two communication modules, communication module A and communication module B, when two communication modules are worked simultaneously, communication module B can receive transmitting of communication module A, this transmits to receive the signal of communication module B itself and causes interference, is interference signal with respect to communication module B namely.Sampling from the transmitting of communication module A, because the sampled signal of the communication module A of same time is identical with the phase place that transmits of communication module A, the single spin-echo of the interference signal that receives through the sampled signal after anti-phase and communication module B so, thereby eliminate or weakening through the interference signal from communication module A that just communication module B can be received after the stack again, realize reducing communication module A to the interference of communication module B.
In like manner, also can pass through to reduce communication module B to the interference of communication module A with upper type, thereby can under the prerequisite of the distance that does not increase by two communication module antennas, reduce disturbing mutually between the communication module in the dual-card dual-standby terminal 100.Simultaneously, in order to prevent causing confusion when signal processed, can adopt two circuits respectively communication module A to be sampled to communication module B, communication module B to transmitting of communication module A and process; Certainly, if can reasonable arrangement good to the both sides communication module signal sampling and sequential, the sequential scheduling problem of the operation such as processing, obviously also can realize by a circuit.
Preferably, sampling and processing unit 102 also are used for: sampled signal or anti-phase sampled signal are carried out amplitude regulate, the amplitude that makes sampled signal after the adjusting or anti-phase sampled signal and the difference of the amplitude that receives signal are less than preset difference value.
Regulate by carrying out amplitude, can make the sampled signal after anti-phase more approaching with the amplitude of interference signal, stack afterwards can be in the intensity that reduces to a greater extent interference signal, even the destructive interference signal, thereby better reduce disturbing mutually between the communication module.
Preferably, sampling and processing unit 102 comprise: the first coupler, inverter or phase shifter, attenuator; Signal superpositing unit 106 comprises: the second coupler or the first resistance-capacitance circuit; Wherein, the first coupler is used for obtaining sampled signal; Inverter or phase shifter are used for sampled signal is carried out Phase Processing, to obtain anti-phase sampled signal; Attenuator is used for according to default attenuation ratio sampled signal or anti-phase sampled signal being carried out the amplitude adjusting; The second coupler or the first resistance-capacitance circuit are used for will be through the sampled signal after Phase Processing and the amplitude adjusting and the stack of described reception signal.
Can from the transmitting an of communication module, obtain sampled signal by a coupler, the energy of sampled signal is on energy 0.1% order of magnitude that transmits, substantially can not impact transmitting, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, again by attenuator with the range-adjusting of anti-phase sampled signal to equating with the amplitude of the reception signal of another communication module, pass through at last another coupler or a resistance-capacitance circuit (by resistance, the devices such as electric capacity build circuit) this anti-phase sampled signal of reception, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
Preferably, sampling and processing unit 102 comprise: the 3rd coupler, attenuator; Signal superpositing unit 106 comprises: the 4th coupler; Wherein, the 3rd coupler is used for obtaining sampled signal, and sampled signal is carried out 90 ° phase shift processing; Attenuator is used for according to default attenuation ratio the sampled signal after processing through phase shift being carried out amplitude to be regulated; The 4th coupler is used for that the sampled signal after regulating through described amplitude is carried out 90 ° phase shift to be processed, and obtaining anti-phase sampled signal, and anti-phase sampled signal and described reception signal is superposeed.
Can from the transmitting an of communication module, obtain sampled signal by a coupler, then utilize the phase shift function of coupler itself, sampled signal carried out 90 ° phase shift, extremely equate with the amplitude of interference signal by the range-adjusting of attenuator with anti-phase sampled signal again, at last by the sampled signal of another coupler reception through 90 ° of phase shifts, step of going forward side by side is carried out 90 ° phase shift, make the phase place of sampled signal altogether move 180 °, obtain anti-phase sampled signal, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
Preferably, sampling and processing unit 102 comprise: the second resistance-capacitance circuit and inverter or phase shifter; Signal superpositing unit 106 comprises: the 3rd resistance-capacitance circuit or the 5th coupler; Wherein, the second resistance-capacitance circuit is used for obtaining sampled signal, and according to default attenuation ratio sampled signal is carried out amplitude and regulate, and wherein, the attribute of the capacitance resistance ware in the second resistance-capacitance circuit is corresponding to default attenuation ratio; Inverter or phase shifter are used for the sampled signal after regulating through amplitude is carried out Phase Processing, to obtain described anti-phase sampled signal; The 3rd resistance-capacitance circuit or the 5th coupler are used for anti-phase sampled signal and the stack of described reception signal.
Can from the transmitting an of communication module, obtain sampled signal by a resistance-capacitance circuit, and by selecting the value of the device such as resistance and electric capacity in the resistance-capacitance circuit, the ratio of energy is obtained in setting from transmit, thereby the amplitude of control sampled signal, make the amplitude and interference signal of sampled signal) amplitude equate, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, owing to anti-phase sampled signal equates with single spin-echo and the amplitude that interference signal receives signal, can be so that interference signal reception signal be weakened or counteracting after the process stack.
Preferably, sampling and processing unit 102 comprise: the 4th resistance-capacitance circuit, inverter or phase shifter, attenuator; Signal superpositing unit 106 comprises: the 5th resistance-capacitance circuit or the 6th coupler; Wherein, the 4th resistance-capacitance circuit is used for obtaining sampled signal; Inverter or phase shifter are used for sampled signal is carried out Phase Processing, to obtain anti-phase sampled signal; Attenuator is used for according to default attenuation ratio sampled signal or anti-phase sampled signal being carried out the amplitude adjusting; The 5th resistance-capacitance circuit or the 6th coupler are used for will be through the sampled signal after Phase Processing and the adjusting of described amplitude and the stack of described reception signal.
Can from the transmitting an of communication module, obtain sampled signal by a resistance-capacitance circuit, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, extremely equate with the amplitude of interference signal by the range-adjusting of attenuator with anti-phase sampled signal again, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
Need to prove, in above every kind of processing mode sampled signal is carried out the step that Phase Processing and amplitude regulate and all can exchange mutually, can reach the effect that reduction is disturbed mutually equally.
Fig. 2 shows the flow chart that reduces according to an embodiment of the invention the method that communication module disturbs mutually.
As shown in Figure 2, reduce according to an embodiment of the invention the method that communication module disturbs mutually and comprise: step 202, the transmitting of first communication module of terminal sampled; Step 204 is carried out Phase Processing to the sampled signal that obtains, and makes sampled signal and transmits anti-phasely, obtains anti-phase sampled signal; Step 206, with anti-phase sampled signal and second communication module receive corresponding to the reception signal stack that transmits.
Dual-card dual-standby terminal comprises two communication modules, communication module A and communication module B, when two communication modules are worked simultaneously, communication module B can receive transmitting of communication module A, this transmits to receive the signal of communication module B itself and causes interference, is interference signal with respect to communication module B namely.Sampling from the transmitting of communication module A, because the sampled signal of the communication module A of same time is identical with the phase place that transmits of communication module A, the single spin-echo of the interference signal that receives through the sampled signal after anti-phase and communication module B so, thereby eliminate or weakening through the interference signal from communication module A that just communication module B can be received after the stack again, realize reducing communication module A to the interference of communication module B.
In like manner, also can pass through to reduce communication module B to the interference of communication module A with upper type, thereby can under the prerequisite of the distance that does not increase by two communication module antennas, reduce disturbing mutually between the communication module in the dual-card dual-standby terminal.Simultaneously, in order to prevent causing confusion when signal processed, can adopt two circuits respectively communication module A to be sampled to communication module B, communication module B to transmitting of communication module A and process; Certainly, if can reasonable arrangement good to the both sides communication module signal sampling and sequential, the sequential scheduling problem of the operation such as processing, obviously also can realize by a circuit.
Preferably, step 204 also comprises: sampled signal or anti-phase sampled signal are carried out amplitude regulate, the amplitude that makes sampled signal after the adjusting or anti-phase sampled signal and the difference of the amplitude that receives signal are less than preset difference value.
Regulate by carrying out amplitude, can make the sampled signal after anti-phase more approaching with the amplitude of interference signal, stack afterwards can be in the intensity that reduces to a greater extent interference signal, even the destructive interference signal, thereby better reduce disturbing mutually between the communication module.
Preferably, step 202 comprises: obtain sampled signal by the first coupler; Step 204 comprises: by inverter or phase shifter sampled signal is carried out Phase Processing, obtaining anti-phase sampled signal, and according to default attenuation ratio sampled signal or anti-phase sampled signal are carried out described amplitude by attenuator and regulate; Step 206 comprises: will be through the sampled signal after Phase Processing and the amplitude adjusting and the stack of described reception signal by the second coupler or the first resistance-capacitance circuit.
Can from the transmitting an of communication module, obtain sampled signal by a coupler, the energy of sampled signal is on energy 0.1% order of magnitude that transmits, substantially can not impact transmitting, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, again by attenuator with the range-adjusting of anti-phase sampled signal to equating with the amplitude of the reception signal of another communication module, pass through at last another coupler or a resistance-capacitance circuit (by resistance, the devices such as electric capacity build circuit) this anti-phase sampled signal of reception, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
Preferably, step 202 comprises: obtain sampled signal by the 3rd coupler; Step 204 comprises: sampled signal is carried out 90 ° phase shift processing by the 3rd coupler, and according to default attenuation ratio anti-phase sampled signal is carried out amplitude by attenuator and regulate; Step 206 comprises: by the 4th coupler the sampled signal after regulating through described amplitude is carried out 90 ° phase shift and process, obtaining anti-phase sampled signal, and anti-phase sampled signal and described reception signal are superposeed.
Can from the transmitting an of communication module, obtain sampled signal by a coupler, then utilize the phase shift function of coupler itself, sampled signal carried out 90 ° phase shift, extremely equate with the amplitude of interference signal by the range-adjusting of attenuator with anti-phase sampled signal again, at last by the sampled signal of another coupler reception through 90 ° of phase shifts, step of going forward side by side is carried out 90 ° phase shift, make the phase place of sampled signal altogether move 180 °, obtain anti-phase sampled signal, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
Preferably, step 202 comprises: obtain sampled signal by the second resistance-capacitance circuit; Step 204 comprises: by the second resistance-capacitance circuit, according to default attenuation ratio sampled signal is carried out amplitude and regulate, and by inverter or phase shifter the sampled signal after regulating through amplitude is carried out Phase Processing, to obtain anti-phase sampled signal; Step 206 comprises: by the 3rd resistance-capacitance circuit or the 5th coupler anti-phase sampled signal and described reception signal are superposeed.
Can from the transmitting an of communication module, obtain sampled signal by a resistance-capacitance circuit, and by selecting the value of the device such as resistance and electric capacity in the resistance-capacitance circuit, the ratio of energy is obtained in setting from transmit, thereby the amplitude of control sampled signal, make the amplitude and interference signal of sampled signal) amplitude equate, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, owing to anti-phase sampled signal equates with single spin-echo and the amplitude that interference signal receives signal, can be so that interference signal reception signal be weakened or counteracting after the process stack.
Preferably, step 202 comprises: obtain sampled signal by the 4th resistance-capacitance circuit; Step 204 comprises: by inverter or phase shifter the sampled signal after regulating through amplitude is carried out Phase Processing, obtaining anti-phase sampled signal, and according to default attenuation ratio anti-phase sampled signal is carried out the amplitude adjusting by attenuator; Step 206 comprises: will be through the sampled signal after Phase Processing and the amplitude adjusting and the stack of described reception signal by the 5th resistance-capacitance circuit or the 6th coupler.
Can from the transmitting an of communication module, obtain sampled signal by a resistance-capacitance circuit, then by inverter or phase shifter sampled signal is processed, make 180 ° of its phase shifts, thereby obtain anti-phase sampled signal, extremely equate with the amplitude of interference signal by the range-adjusting of attenuator with anti-phase sampled signal again, owing to anti-phase sampled signal equates with single spin-echo and the amplitude of interference signal, can be so that interference signal be weakened or counteracting after the process stack.
Need to prove, in above every kind of method sampled signal is carried out the step that Phase Processing and amplitude regulate and all can exchange mutually, can reach the effect that reduction is disturbed mutually equally.
Below in conjunction with the structure chart of terminal, the present invention is reduced the process of disturbing mutually between communication module further specify.
Fig. 3 shows according to an embodiment of the invention a kind of structural representation of terminal.
As shown in Figure 3, terminal 100 comprises first communication module 302 and second communication module 304, and transmitting accordingly is first to transmit and 330 and second transmit 340.
On the one hand, at first, the first coupler 351 transmits from first and obtains the first sampled signal 330, then the first inverter 306(or phase shifter) the first sampled signal is carried out Phase Processing, make 180 ° of its phase shifts, obtain the first anti-phase sampled signal; By the first attenuator 308 range-adjusting of the first anti-phase sampled signal amplitude to the interference signal that receives with second communication module 304 (being that second communication module 304 receives, corresponding to the first transmit reception signal of 330) is equated again; At last will be superimposed on the interference signal that second communication module 304 receives through the first anti-phase sampled signal behind the range-adjusting by the second coupler 352, make the strength decreased of interference signal.
On the other hand, at first, the 7th coupler 357 transmits from second and obtains the second sampled signal 340; Then the second inverter 316(or phase shifter) the second sampled signal is carried out Phase Processing, make 180 ° of its phase shifts, obtain the second anti-phase sampled signal; By the second attenuator 318 range-adjusting of the second anti-phase sampled signal amplitude to the interference signal that receives with first communication module 302 (being that first communication module 302 receives, corresponding to the second transmit reception signal of 340) is equated again; At last will be superimposed on the interference signal that first communication module 302 receives through the second anti-phase sampled signal behind the range-adjusting by the 8th coupler 358, make the strength decreased of interference signal.
By technique scheme, thereby reduce respectively the transmitting to each other interference of first communication module 302 and second communication module 304, reached the effect of disturbing mutually that reduces by two communication modules in the dual-card dual-standby terminal 100.
Fig. 4 shows the according to an embodiment of the invention structural representation of another kind of terminal.
As shown in Figure 4, can adopt the second coupler 352 in the first resistance-capacitance circuit 361 replacements terminal 100 as shown in Figure 3, and adopt the second resistance-capacitance circuit 362 to replace the 8th coupler 358, can reach equally the effect of disturbing mutually that reduces by two communication modules in the dual-card dual-standby terminal 100.
Fig. 5 shows the according to an embodiment of the invention structural representation of another terminal.
As shown in Figure 5, terminal 100 comprises first communication module 302 and second communication module 304, and transmitting accordingly is first to transmit and 330 and second transmit 340.
On the one hand, at first, the 3rd coupler 353 transmits from first and obtains the first sampled signal 330; Then the 3rd coupler 353 utilizes the phase shift function of coupler itself, the first sampled signal is carried out 90 ° phase shift; By the first attenuator 308 range-adjusting of the first sampled signal to the amplitude that receives interference signal (being that second communication module 304 receives, corresponding to the first transmit reception signal of 330) with second communication module 304 is equated again; At last, further carry out 90 ° phase shift by 354 pairs of the first sampled signals of the 4th coupler, obtain the first anti-phase sampled signal, and be superimposed on the interference signal that second communication module 304 receives, make the strength decreased of interference signal.
On the other hand, at first, the 9th coupler 359 transmits from second and obtains the second sampled signal 340; Then the 9th coupler 359 utilizes the phase shift function of coupler itself, the second sampled signal is carried out 90 ° phase shift; By the second attenuator 318 range-adjusting of the second sampled signal to the amplitude with the interference signal that receives of first communication module 302 (being that first communication module 302 receives, corresponding to the second transmit reception signal of 340) is equated again; At last, further carry out 90 ° phase shift by 360 pairs of the second sampled signals of the tenth coupler, obtain the second anti-phase sampled signal, and be superimposed on the interference signal that first communication module 302 receives, make the strength decreased of interference signal.
Thereby reduce transmitting to the interference that transmits of another communication module of first communication module 302 and second communication module 304, reached the effect of disturbing mutually that reduces by two communication modules in the dual-card dual-standby terminal 100.
Fig. 6 shows the according to an embodiment of the invention structural representation of another terminal.
As shown in Figure 6, terminal 100 comprises first communication module 302 and second communication module 304, and transmitting accordingly is first to transmit and 330 and second transmit 340.
On the one hand, at first, the second resistance-capacitance circuit 362 transmits from first and obtains the first sampled signal 330; Then, by selecting the value of the device such as resistance and electric capacity in the second resistance-capacitance circuit 362, setting transmits from first and obtains the ratio of energy 330, thereby the amplitude of the amplitude of the first sampled signal and the interference signal that second communication module 304 receives (being that second communication module 304 receives, corresponding to the first transmit reception signal of 330) is equated; Again by the first inverter 306(or phase shifter) the first sampled signal is carried out Phase Processing, make 180 ° of its phase shifts, obtain the first anti-phase sampled signal; At last, receive the first anti-phase sampled signal by the 3rd resistance-capacitance circuit 363, be superimposed on the interference signal that second communication module 304 receives, make the strength decreased of interference signal.
On the other hand, at first, the 7th resistance-capacitance circuit 367 transmits from second and obtains the second sampled signal 340; Then, by selecting the value of the device such as resistance and electric capacity in the 7th resistance-capacitance circuit 367, setting transmits from second and obtains the ratio of energy 340, thereby the amplitude of the amplitude of the second sampled signal and the interference signal that first communication module 302 receives (being that first communication module 302 receives, corresponding to the second transmit reception signal of 340) is equated; Again by the second inverter 316(or phase shifter), the second sampled signal is carried out Phase Processing, make 180 ° of its phase shifts, obtain the second anti-phase sampled signal; At last, receive the second anti-phase sampled signal by the 8th resistance-capacitance circuit 368, be superimposed on the interference signal that first communication module 302 receives, make the strength decreased of interference signal.
Thereby reduce transmitting to the interference that transmits of another communication module of first communication module 302 and second communication module 304, reached the effect of disturbing mutually that reduces by two communication modules in the dual-card dual-standby terminal 100.
Fig. 7 shows the according to an embodiment of the invention structural representation of another terminal.
As shown in Figure 7, can adopt the 3rd resistance-capacitance circuit 363 in the 5th coupler 355 replacements terminal 100 as shown in Figure 6, and adopt the 11 coupler 341 to replace the 8th resistance-capacitance circuit 368.Can reach equally the effect of disturbing mutually that reduces by two communication modules in the dual-card dual-standby terminal 100.
Fig. 8 shows the according to an embodiment of the invention structural representation of another terminal.
As shown in Figure 8, can adopt the first coupler 351 in the 4th resistance-capacitance circuit 364 replacements terminal 100 as shown in Figure 3, adopt the 9th resistance-capacitance circuit 369 to replace the first coupler 351, adopt the 5th resistance-capacitance circuit 365 to replace the second coupler 352, and adopt the tenth resistance-capacitance circuit 370 to replace the 7th coupler 357.Can reach equally the effect of disturbing mutually that reduces by two communication modules in the dual-card dual-standby terminal 100.
Fig. 9 shows the according to an embodiment of the invention structural representation of another terminal.
As shown in Figure 9, can adopt the 5th resistance-capacitance circuit 365 in the 6th coupler 356 replacements terminal 100 as shown in Figure 8, and adopt the 12 coupler 342 to replace the tenth resistance-capacitance circuit 370.Can reach equally the effect of disturbing mutually that reduces by two communication modules in the dual-card dual-standby terminal 100.
Need to prove, sampled signal is carried out the step that Phase Processing and amplitude regulate all can exchange mutually among Fig. 3 to Fig. 9 can reach the effect that reduction is disturbed mutually equally.
In addition, at Fig. 3 to the embodiment shown in Figure 9, all adopt two circuits respectively to first of first communication module 302 correspondences transmit 330 and second communication module 304 correspondences second transmit 340 sample, the processing such as stack, influence each other to avoid causing between two processes.But in fact, obviously also can adopt the same circuit to realize said process, specifically as shown in figure 10.
On the one hand, transmit by first of 3020 pairs of first communication module 302 correspondences of the first sampling processing module and 330 to sample, then be sent to the second sampling processing module 3040 by signal transmission line 402, by the second sampling processing module 3040 it be superimposed to the interference signal that second communication module 304 receives; On the other hand, transmit by second of 3040 pairs of second communication module 304 correspondences of the second sampling processing module and 340 to sample, then be sent to the first sampling processing module 3020 by signal transmission line 402, by the first sampling processing module 3020 it be superimposed to the interference signal that first communication module 302 receives.Therefore, as long as reasonable distribution is utilized sequential, signal transmission order for signal transmission line 402, and first sampling processing module 3020 and the second sampling processing module 3040 for processing such as the collection of signal and stacks, can by the way, adopt a circuit to realize technical scheme of the present invention equally.
More than be described with reference to the accompanying drawings technical scheme of the present invention, considered in the correlation technique, double card double standby mobile phone is disturbed seriously mutually, and because terminal size is limited, by increase isolation between antennas reduce disturb mutually also more and more difficult.The present invention proposes a kind of terminal, can and process from a communication module collection signal, make the intensity that can reduce interference signal after the interference signal stack that receives of signal after the processing and another communication module, thereby under the prerequisite that does not increase distance between two communication module antennas, reduce disturbing mutually between the communication module.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a terminal comprises first communication module and second communication module, it is characterized in that, also comprises:
Sampling and processing unit are used for transmitting of described first communication module sampled, and the sampled signal that obtains are carried out Phase Processing, make described sampled signal and described transmit anti-phase;
The signal superpositing unit, being used for will be through superposeing corresponding to the described reception signal that transmits that the anti-phase sampled signal that obtains after the described Phase Processing and described second communication module receive.
2. terminal according to claim 1 is characterized in that, described sampling and processing unit also are used for:
Described sampled signal or described anti-phase sampled signal are carried out amplitude regulate, make the difference of amplitude of the amplitude of described sampled signal after the adjusting or described anti-phase sampled signal and described reception signal less than preset difference value.
3. terminal according to claim 2 is characterized in that, described sampling and processing unit comprise: the first coupler, inverter or phase shifter, attenuator; Described signal superpositing unit comprises: the second coupler or the first resistance-capacitance circuit; Wherein,
Described the first coupler is used for obtaining described sampled signal; Described inverter or phase shifter are used for described sampled signal is carried out described Phase Processing, to obtain described anti-phase sampled signal; Described attenuator is used for according to default attenuation ratio described sampled signal or described anti-phase sampled signal being carried out described amplitude adjusting; Described the second coupler or described the first resistance-capacitance circuit are used for will be through the sampled signal after described Phase Processing and the adjusting of described amplitude and the stack of described reception signal.
4. terminal according to claim 2 is characterized in that, described sampling and processing unit comprise: the 3rd coupler, attenuator; Described signal superpositing unit comprises: the 4th coupler; Wherein,
Described the 3rd coupler is used for obtaining described sampled signal, and described sampled signal is carried out 90 ° phase shift processing; Described attenuator is used for according to default attenuation ratio the sampled signal after processing through described phase shift being carried out described amplitude to be regulated; Described the 4th coupler is used for that the sampled signal after regulating through described amplitude is carried out 90 ° phase shift to be processed, obtaining described anti-phase sampled signal, and will described anti-phase sampled signal and described reception signal superpose.
5. terminal according to claim 2 is characterized in that, described sampling and processing unit comprise: the second resistance-capacitance circuit and inverter or phase shifter; Described signal superpositing unit comprises: the 3rd resistance-capacitance circuit or the 5th coupler; Wherein,
Described the second resistance-capacitance circuit is used for obtaining described sampled signal, and according to default attenuation ratio described sampled signal is carried out described amplitude and regulate, and wherein, the attribute of the capacitance resistance ware in described the second resistance-capacitance circuit is corresponding to described default attenuation ratio; Described inverter or phase shifter are used for the sampled signal after regulating through described amplitude is carried out described Phase Processing, to obtain described anti-phase sampled signal; Described the 3rd resistance-capacitance circuit or the 5th coupler are used for described anti-phase sampled signal and the stack of described reception signal.
6. terminal according to claim 2 is characterized in that, described sampling and processing unit comprise: the 4th resistance-capacitance circuit, inverter or phase shifter, attenuator; Described signal superpositing unit comprises: the 5th resistance-capacitance circuit or the 6th coupler; Wherein,
Described the 4th resistance-capacitance circuit is used for obtaining described sampled signal; Described inverter or phase shifter are used for described sampled signal is carried out described Phase Processing, to obtain described anti-phase sampled signal; Described attenuator is used for according to default attenuation ratio described sampled signal or described anti-phase sampled signal being carried out described amplitude adjusting; Described the 5th resistance-capacitance circuit or described the 6th coupler are used for will be through the sampled signal after described Phase Processing and the adjusting of described amplitude and the stack of described reception signal.
7. one kind is reduced the method that communication module is disturbed mutually, it is characterized in that, comprising:
Step 202 is sampled to the transmitting of first communication module of terminal;
Step 204 is carried out Phase Processing to the sampled signal that obtains, and makes described sampled signal and describedly transmits anti-phasely, obtains anti-phase sampled signal;
Step 206, with described anti-phase sampled signal and described second communication module receive corresponding to the described reception signal stack that transmits.
8. the reduction communication module according to claim 7 method of disturbing mutually is characterized in that, described step 204 also comprises:
Described sampled signal or described anti-phase sampled signal are carried out amplitude regulate, make the difference of amplitude of the amplitude of described sampled signal after the adjusting or described anti-phase sampled signal and described reception signal less than preset difference value.
9. the reduction communication module according to claim 8 method of disturbing mutually is characterized in that, described step 202 comprises: obtain described sampled signal by the first coupler;
Described step 204 comprises: by inverter or phase shifter described sampled signal is carried out described Phase Processing, obtaining described anti-phase sampled signal, and according to default attenuation ratio described sampled signal or described anti-phase sampled signal are carried out described amplitude by attenuator and regulate;
Described step 206 comprises: will be through the sampled signal after described Phase Processing and the adjusting of described amplitude and the stack of described reception signal by the second coupler or the first resistance-capacitance circuit.
10. the reduction communication module according to claim 8 method of disturbing mutually is characterized in that, described step 202 comprises: obtain described sampled signal by the 3rd coupler;
Described step 204 comprises: described sampled signal is carried out 90 ° phase shift processing by described the 3rd coupler, and according to default attenuation ratio described anti-phase sampled signal is carried out described amplitude by attenuator and regulate;
Described step 206 comprises: by described the 4th coupler the sampled signal after regulating through described amplitude is carried out 90 ° phase shift and processes, obtaining described anti-phase sampled signal, and will described anti-phase sampled signal and described reception signal superpose.
11. the method that reduction communication module according to claim 8 is disturbed mutually is characterized in that, described step 202 comprises: obtain described sampled signal by the second resistance-capacitance circuit;
Described step 204 comprises: by described the second resistance-capacitance circuit, according to default attenuation ratio described sampled signal being carried out described amplitude regulates, and by inverter or phase shifter the sampled signal after regulating through described amplitude is carried out described Phase Processing, to obtain described anti-phase sampled signal;
Described step 206 comprises: by the 3rd resistance-capacitance circuit or the 5th coupler described anti-phase sampled signal and described reception signal are superposeed.
12. the method that reduction communication module according to claim 8 is disturbed mutually is characterized in that, described step 202 comprises: obtain described sampled signal by the 4th resistance-capacitance circuit;
Described step 204 comprises: by inverter or phase shifter the sampled signal after regulating through described amplitude is carried out described Phase Processing, obtaining described anti-phase sampled signal, and according to default attenuation ratio described anti-phase sampled signal is carried out described amplitude by attenuator and regulate;
Described step 206 comprises: will be through the sampled signal after described Phase Processing and the adjusting of described amplitude and the stack of described reception signal by the 5th resistance-capacitance circuit or the 6th coupler.
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