CN116545455B - Method and device for adjusting energy dissipation of transmitter antenna and transmitter - Google Patents
Method and device for adjusting energy dissipation of transmitter antenna and transmitter Download PDFInfo
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- CN116545455B CN116545455B CN202310814144.XA CN202310814144A CN116545455B CN 116545455 B CN116545455 B CN 116545455B CN 202310814144 A CN202310814144 A CN 202310814144A CN 116545455 B CN116545455 B CN 116545455B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application relates to the technical field of near field communication, and discloses a method for adjusting energy dissipation of a transmitter antenna, which comprises the following steps: adjusting the number of transmission carrier wave cycles of the transmission signal in a transmission period through the phase-change indication signal to obtain a first transmission signal; adjusting the transmitting power of the transmitting signal in each transmitting carrier period through the phase-change indicating pre-judging signal to obtain a second transmitting signal; determining a reconstructed transmit signal from the first transmit signal and the second transmit signal; the transmitter is controlled to transmit the spatial field strength according to the reconstructed transmit signal to adjust the transmitter antenna energy dissipation. The phase change indication signal and the phase change indication pre-judging signal are jointly configured, so that the number of the transmitting carrier wave periods of the transmitter in the transmitting period and the transmitting power of each transmitting carrier wave period can be independently controlled, the energy dissipation of the antenna of the transmitter is adjusted, and the success rate of near field communication is improved. The application also discloses a device for adjusting the energy dissipation of the transmitter antenna and a transmitter.
Description
Technical Field
The application relates to the technical field of near field communication, in particular to a method and a device for adjusting energy dissipation of an antenna of a transmitter and the transmitter.
Background
Near field communication (Near Field Communication, NFC), also known as near field communication, is a short range wireless communication technology with an operating frequency of 13.56MHz, allowing contactless point-to-point data transmission between electronic devices. The transmitter (a transmitter circuit) is a device capable of transmitting signals at a certain frequency, and in the process of realizing Near Field Communication (NFC) signal transmission, the main task is to complete the modulation of a useful low-frequency signal on a high-frequency carrier wave and change the modulation into electromagnetic waves which have a certain bandwidth at a certain center frequency and are suitable for being transmitted through an antenna.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
in the process of the active emission of the NFC signals, the space field intensity envelope modulation depth of the NFC signals in the phase inversion stage and the non-phase inversion stage is inconsistent due to the accumulation effect of the emission energy of the antenna of the transmitter, so that the near field communication failure rate is higher.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a method and a device for adjusting energy dissipation of an antenna of a transmitter, and the transmitter, so as to improve success rate of near field communication.
In some embodiments, a method for adjusting transmitter antenna energy dissipation includes: adjusting the number of transmission carrier wave cycles of the transmission signal in a transmission period through the phase-change indication signal to obtain a first transmission signal; adjusting the transmitting power of the transmitting signal in each transmitting carrier period through the phase-change indicating pre-judging signal to obtain a second transmitting signal; determining a reconstructed transmit signal from the first transmit signal and the second transmit signal; the transmitter is controlled to transmit the spatial field strength according to the reconstructed transmit signal to adjust the transmitter antenna energy dissipation.
In some embodiments, an apparatus for adjusting transmitter antenna energy dissipation includes a first adjustment module, a second adjustment module, a reconstruction module, and a transmit module, wherein: the first adjusting module is configured to adjust the number of the transmitting carrier wave cycles of the transmitting signal in the transmitting period through the phase-change indicating signal to obtain a first transmitting signal; the second adjusting module is configured to adjust the transmitting power of the transmitting signal in each transmitting carrier period through the phase-change indication pre-judging signal to obtain a second transmitting signal; the reconstruction module is configured to determine a reconstructed transmission signal from the first transmission signal and the second transmission signal; the transmit module is configured to control the transmitter to transmit the spatial field strength in accordance with the reconstructed transmit signal to adjust the transmitter antenna energy dissipation.
In some embodiments, an apparatus for adjusting transmitter antenna energy dissipation comprises: a processor and a memory storing program instructions, the processor being configured to perform the aforementioned method for adjusting the energy dissipation of a transmitter antenna when executing the program instructions.
In some embodiments, a transmitter includes transmit clock logic, transmit driver circuitry, transmit power transistor array circuitry, and the foregoing means for adjusting transmitter antenna energy dissipation, wherein: the transmit clock logic is configured to configure a drive clock state of the transmitter; the emission driving circuit is connected with the emission clock logic circuit and is configured to drive signals of the emission power tube according to the driving clock state; the transmitting power tube array circuit is connected with the transmitting driving circuit and is configured to transmit space field intensity according to signals of the transmitting power tubes.
The method and the device for adjusting the energy dissipation of the transmitter antenna, and the transmitter provided by the embodiment of the disclosure can realize the following technical effects:
in the technical scheme, a first transmitting signal is obtained by adjusting the transmitting carrier wave period number of a transmitting signal in a transmitting period through a phase-change indicating signal, a second transmitting signal is obtained by adjusting the transmitting power of the transmitting signal in each transmitting carrier wave period through a phase-change indicating pre-judging signal, a reconstruction transmitting signal is determined according to the first transmitting signal and the second transmitting signal, and a transmitter is controlled to transmit space field intensity according to the reconstruction transmitting signal so as to adjust energy dissipation of a transmitter antenna. Therefore, through joint configuration of the commutation indication signal and the commutation indication pre-judging signal, the number of transmitting carrier wave periods of the transmitter in a transmitting period and the transmitting power of each transmitting carrier wave period can be independently controlled, so that the energy dissipation of the transmitter antenna is adjusted, the modulation depth of the space field intensity envelope of NFC signals in the commutation transmission and the non-commutation transmission is kept consistent, the success rate of near field communication is improved, and the communication stability is better kept.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
fig. 1 is a flow diagram of a method for adjusting transmitter antenna energy dissipation provided by an embodiment of the present disclosure;
fig. 2 is a flow diagram of another method for adjusting transmitter antenna energy dissipation provided by an embodiment of the present disclosure;
fig. 3 is a flow diagram of another method for adjusting transmitter antenna energy dissipation provided by an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a transmitter according to an embodiment of the disclosure;
fig. 5A, 5B, 5C are schematic structural diagrams of a transmit power tube array circuit provided in an embodiment of the present disclosure;
FIGS. 6A, 6B, 6C, 6D are schematic structural diagrams of antenna envelopes of transmitter transmit spatial field strengths provided by embodiments of the present disclosure;
fig. 7 is a schematic diagram of a structure of a signal transmitted by a transmitter according to an embodiment of the disclosure;
FIG. 8 is a waveform diagram of a commutation indication signal provided by an embodiment of the present disclosure;
FIG. 9 is a circuit diagram of one clock configuration provided by an embodiment of the present disclosure;
FIG. 10 is a waveform diagram of a counter provided by an embodiment of the present disclosure;
FIGS. 11A and 11B are schematic diagrams illustrating the effects of a spatial field intensity envelope modulation depth adjustment provided by embodiments of the present disclosure;
fig. 12 is a schematic diagram of an apparatus for adjusting transmitter antenna energy dissipation provided by an embodiment of the present disclosure;
fig. 13 is a schematic structural view of an apparatus for adjusting energy dissipation of a transmitter antenna provided by an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated. In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B. The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B. The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
In this disclosed technical scheme, referring to fig. 4, the transmitter mainly includes a transmit clock logic circuit, a transmit driving circuit, a transmit power tube array circuit, and a device for adjusting energy dissipation of a transmitter antenna, where: the transmit clock logic is configured to configure a drive clock state of the transmitter; the emission driving circuit is connected with the emission clock logic circuit and is configured to drive signals of the emission power tube according to the driving clock state; the transmitting power tube array circuit is connected with the transmitting driving circuit and is configured to transmit space field intensity according to signals of the transmitting power tubes.
The transmitter has two modes of operation, one of which is to transmit spatial field strength as a proximity coupling device (proximity coupling device, PCD); the second is to transmit the spatial field strength as a proximity card (proximity card or object, PICC). The transmitting clock logic circuit is used for configuring a driving clock state of the transmitter in a PCD or PICC working mode; the emission driving circuit is used for converting the low-voltage logic signal into a signal for driving the emission power tube, so that the low-noise conversion from the low-voltage driving signal to the high-voltage driving signal is ensured; the transmitting power tube array circuit is used for matching with the antenna matching network to transmit the space field intensity.
Fig. 5A, 5B, and 5C are schematic structural diagrams of a transmit power transistor array circuit according to an embodiment of the present disclosure. Referring to fig. 5A and 5B, when the transmitting power tube array circuit does not modulate the field intensity of the transmitting space, the P tube array of the TX1 power tube array and the N tube array of the TX2 power tube array of the transmitting power tube array circuit are simultaneously conducted in a 13.56MHZ carrier period and a first 13.56MHZ carrier period to form a current path from the transmitter power supply to the ground; the N tube array of the TX1 power tube array and the P tube array of the TX2 power tube array of the transmitting power tube array circuit are simultaneously conducted in the latter half 13.56MHz carrier period, so that a current path from a transmitter power supply to ground is formed. Referring to fig. 5C, when the spatial field intensity is not transmitted during modulation of the transmit power transistor array circuit, the P-transistor array of the TX1 power transistor array and the P-transistor array of the TX2 power transistor array of the transmit power transistor array circuit are all in the off state, and the N-transistor array of the TX1 power transistor array and the N-transistor array of the TX2 power transistor array are all in the on state, so that the TX1 power transistor array and the TX2 power transistor array are pulled down to the ground.
Fig. 6A, 6B, 6C, 6D are schematic diagrams of antenna envelopes of transmitter transmit spatial field strengths provided by embodiments of the present disclosure. The antenna envelope is divided into two TYPEs, PCD TYPE a/B and PICC TYPE A/B, wherein the PCD TYPE a antenna envelope waveform is shown in fig. 6A, the PCD TYPE B antenna envelope waveform is shown in fig. 6B, the PICC TYPE A (106K) antenna envelope waveform is shown in fig. 6C, and the PICC TYPE B (and PICC high baud rate) antenna envelope waveform is shown in fig. 6D. The antenna envelope of the transmitting space field intensity of the transmitter in the embodiment of the disclosure is PICC TYPE B or PICC high baud rate.
The NFC communication protocol applicable by the transmitter circuit is shown in table 1 below:
table 1: NFC communication protocol
Fig. 7 is a schematic diagram of a structure of a signal transmitted by a transmitter according to an embodiment of the disclosure. Referring to fig. 7, the first row of TXD is transmission data provided by the digital module, when TXD is 0, the transmitter actively transmits the spatial field intensity, and when TXD is 1, the transmitter does not transmit the spatial field intensity; the second row of antenna envelope is PICC TYPE B envelope waveform transmitted from the antenna end by the transmitter; the third row of COUNT_SEL is a commutation indication signal and is used for indicating a commutation emission state and a non-commutation emission state; the fourth row COUNT SEL NEW is the commutation indication pre-decision signal.
In the disclosed embodiment, the commutation indication signal is set high when the transmitter is in a low-transmit commutation phase and is set low when the transmitter is in a non-low-transmit commutation phase. The high point of the commutation indicating pre-judging signal is earlier than the high point of the commutation indicating signal, and the low point of the commutation indicating pre-judging signal is later than the low point of the commutation indicating signal.
Here, the low-phase inversion phase refers to 16 consecutive 13.56MHZ carrier periods within the txd=0 interval. The commutation indication signal COUNT _ SEL remains high during low-latency commutation phases of the TXD data and low during non-low-latency commutation phases of the TXD data. The high point of the commutation indication pre-determination signal count_sel_new signal is earlier than the high point of the commutation indication signal, and the low point of the commutation indication pre-determination signal is later than the low point of the commutation indication signal, for example, the count_sel_new signal is set high for the first 4 carrier periods of the low-phase-inversion phase of the TXD data and is set low for the last 4 carrier periods of the low-phase-inversion phase of the TXD data.
As shown in connection with fig. 1, an embodiment of the present disclosure provides a method for adjusting energy dissipation of a transmitter antenna, comprising the steps of:
s101, adjusting the transmission carrier wave period number of the transmission signal in the transmission period by the phase-change indication signal to obtain a first transmission signal.
Optionally, the commutation indicating signal is set high when the transmitter is in a low-transmit commutation phase and is set low when the transmitter is in a non-low-transmit commutation phase. Adjusting the number of transmission carrier wave cycles of a transmission signal in a transmission period by a phase-change indication signal, comprising: under the condition that the commutation indication signal is high, the first counter is utilized to adjust the transmission carrier cycle number of the transmission signal; under the condition that the commutation indicating signal is low, the second counter is utilized to adjust the transmission carrier period number of the transmission signal; the carrier cycle number corresponding to the first counter is smaller than the carrier cycle number corresponding to the second counter.
And adjusting the transmission carrier wave period number of the transmission signal in the transmission period through the phase-change indication signal, and taking the transmission signal with the adjusted transmission carrier wave period number as a first transmission signal.
The commutation indication signal COUNT _ SEL signal indicates 8 non-commutation short-hair intervals of 13.56MHZ carrier periods and 16 commutation long-hair intervals of 13.56MHZ carrier periods (low-hair commutation phases). The count_sel signal is built-in with a "1" for the consecutive 16 carrier periods when TXD is "0" and the commutation is transmitted, with the rising edge of the count_sel signal aligned with the falling edge of TXD and the falling edge of the count_sel signal aligned with the rising edge of TXD.
Here, the non-commutation short transmission interval refers to 8 consecutive 13.56MHZ carrier periods of txd=0; the commutation long-range interval refers to the continuous 16 13.56MHZ carrier periods of txd=0.
The state of the COUNT _ SEL signal is used to select two counters (a first counter and a second counter) in parallel inside the transmitter, the first counter counting cyclically every 8 carrier cycles and the second counter counting cyclically every 16 carrier cycles. And the first counter is used for controlling the transmission carrier wave period number of the transmitter in the transmission period in the non-commutation short transmission period, and the second counter is used for controlling the transmission carrier wave period number of the transmitter in the transmission period in the commutation long transmission period, so that the independent configuration of the transmission carrier wave period numbers of the non-commutation transmission and the commutation transmission is realized.
Optionally, adjusting the number of transmit carrier cycles of the transmit signal with the first counter includes: obtaining a first frequency division output value of a first counter; determining a first transmission carrier period number corresponding to the first frequency division output value; the number of transmit carrier cycles of the transmit signal is adjusted according to the first number of transmit carrier cycles.
Optionally, adjusting the number of transmit carrier cycles of the transmit signal with the second counter includes: obtaining a second frequency division output value of a second counter; determining a second transmission carrier period number corresponding to the second frequency division output value; and adjusting the transmission carrier cycle number of the transmission signal according to the second transmission carrier cycle number.
Fig. 8 is a waveform diagram of a commutation indication signal provided by an embodiment of the present disclosure. As shown in fig. 8, the counter RESET signal is used as the TXD data signal, the first counter and the second counter start to count at the time of the falling edge of the TXD, the counter stops counting and clears 0 at the time of the rising edge of the TXD, the counting logic function of the counter is used to selectively configure the carrier cycle number during the transmission period of txd=0, TXD1 corresponds to 7 transmission carrier cycles, TXD2 corresponds to 6 carrier cycles, TXD3 corresponds to 5 carrier cycles, TXD4 corresponds to 4 carrier cycles, and one of TXD1, TXD2, TXD3 and TXD4 can be selected by the logic selection circuit.
Fig. 9 is a circuit diagram of one clock configuration provided by an embodiment of the present disclosure. The D flip-flops in the counter used in the disclosed embodiment are all rising edge sampling, so the counter input clock is correspondingly processed, and the 13.56MHz clock A is converted into the 27.12MHz clock B in combination with the diagram shown in FIG. 9.
Fig. 10 is a waveform diagram of one counter provided by an embodiment of the present disclosure. The following is presented in connection with fig. 10:
a is 13.56MHZ clock and B is 27.12MHZ clock, wherein the a and B clocks are characterized by the same initial phase of the a and B clocks, i.e., the rising edge of the a clock at the initial time is aligned with the rising edge of the B clock, except that the B clock frequency is 2 times the a clock frequency.
Q1, Q2, Q3, Q4, Q5 may be 5 divided outputs of one counter from a circuit implementation perspective, and may be 5 counters of different frequency outputs from an application function perspective.
TXD1, TXD2, TXD3, TXD4 and TXD5 are reconstructed TXD signals with controllable carrier cycle numbers realized by using counters Q1, Q2, Q3, Q4 and Q5, wherein functionally, TXD1 corresponds to 7 carrier transmission cycles in 8 13.56MHz carrier cycles, and 1 carrier cycle is in a non-transmission stage; TXD2 has 6 carrier transmission periods in 8 13.56MHz carrier periods, and 2 carrier periods are in a non-transmission stage; TXD3 has 5 carrier transmission periods in 8 13.56MHz carrier periods, and 3 carrier periods are in a non-transmission stage; TXD4 corresponds to 4 carrier transmit periods within 8 13.56MHZ carrier periods, with 4 carrier periods in the no transmit phase.
The Y1, Y2 and Y3 signals are intermediate signals in the process of forming TXD1, TXD2, TXD3, TXD4 and TXD5 signals from Q1, Q2, Q3, Q4 and Q5 signals, and the realization logic is that the Q1, Q2, Q3, Q4 and Q5 signals are formed into Y1, Y2 and Y3 through combination logic, and then the Y1, Y2 and Y3 are combined with the Q1, Q2, Q3, Q4 and Q5 to form TXD1, TXD2, TXD3, TXD4 and TXD5 through logic combination.
For example, the first frequency-divided output value of the first counter is Q1, and the first transmission signal corresponds to the reconstructed TXD signal TXD1, and the first transmission carrier cycle number corresponding to the first frequency-divided output value Q1 is 7 carrier transmission cycles. Similarly, the second frequency division output value of the second counter is Q3, and the second transmission signal corresponds to the reconstructed TXD signal TXD3, and the second transmission carrier cycle number corresponding to the second frequency division output value Q3 is 5 carrier transmission cycles.
In general, the PICC does not transmit only for 8 13.56MHz carrier periods, and the card transmit energy residue in the previous stage affects these 8 13.56MHz carrier periods, resulting in a reduced number of cycles available for recovering the card clock, inaccurate recovered clock by NFC, and communication failure. In the technical scheme, in the total of 16 carrier periods, the number of active transmission carrier periods is reduced, the number of non-transmission carrier periods is increased, the time of energy dissipation on an antenna is increased, and the PCD card machine clock recovery is facilitated. Similarly, in the total of 32 carrier periods, the number of active transmission carrier periods is reduced, the number of non-transmission carrier periods is increased, the time of energy dissipation on an antenna is increased, the clock recovery of PCD card machine is facilitated, and the stability of a communication system is improved.
S102, adjusting the transmitting power of the transmitting signal in each transmitting carrier period through the phase-change indication pre-judging signal to obtain a second transmitting signal.
Optionally, adjusting the transmit power of the transmit signal in each transmit carrier period by the commutation indicating pre-determined signal includes: under the condition that the commutation indication pre-judging signal is high, the transmitting power of the transmitter is adjusted by using the first power tube array; and under the condition that the commutation indication pre-judging signal is low, adjusting the transmitting power of the transmitter by using the second power tube array.
And adjusting the transmitting power of the transmitting signal in each transmitting carrier period through the phase-change indicating pre-judging signal, and taking the transmitting signal with the adjusted transmitting power as a second transmitting signal.
The commutation indication pre-determination signal count_sel_new signal is set to "1" at the time of 4 carrier periods advanced by the commutation transmission, and is set to "0" at the time of 4 carrier periods after the end of the commutation transmission. The count_sel_new signal is used to select two sets of power transistor arrays, during which count_sel_new=1, active transmit power value a is selected, and during which count_sel_new=0, active transmit power value B is selected.
The rising edge of the count_sel signal is aligned with the falling edge of TXD and the falling edge of the count_sel signal is aligned with the rising edge of TXD. The high point of the commutation indicating pre-determination signal is earlier than the high point of the commutation indicating signal, and the low point of the commutation indicating pre-determination signal is later than the low point of the commutation indicating signal, i.e. the rising edge of the count_sel_new signal is earlier than the rising edge of the count_sel signal, and the falling edge of the count_sel_new signal is later than the falling edge of the count_sel signal. The power tube value is configured before the rising edge of the commutation emission indication signal COUNT_SEL signal, and the power tube value is changed after the falling edge of the COUNT_SEL signal, so that the emission field intensity jitter caused by untimely switching of the power tube at the jump time of commutation emission can be prevented.
Optionally, the first power tube array is determined as follows: obtaining a first frequency division output value of a first counter; determining a power tube array corresponding to the first frequency division output value; and determining the power tube array corresponding to the first frequency division output value as a first power tube array.
Optionally, the second power tube array is determined as follows: obtaining a second frequency division output value of a second counter; determining a power tube array corresponding to the second frequency division output value; and determining the power tube array corresponding to the second frequency division output value as a second power tube array.
During active transmission of txd=0, the transmit power amplitude of each carrier cycle may be independently configurable by using a counter to construct a combinational logic circuit to select the transmit power tube value of each step. The following is presented in connection with fig. 8: the register values S0-S7 sequentially represent the first step to the eighth step of non-commutation phase emission, the register value of each step can be randomly configured, the registers L0-LF represent the first step to the sixteenth step of commutation phase emission, and the register value of each step can be randomly configured, so that the consistency of LMA depth of the waveform of the commutation phase emission and the non-commutation phase emission is ensured by the maximum degree of freedom.
For example, the first frequency division output value of the first counter is Q1, and the power transistor array transmitting power corresponding to the first frequency division output value Q1 is a, and then the power transistor array transmitting power a is determined as the first power transistor array. Similarly, the second frequency division output value of the second counter is Q3, and if the power transistor array transmitting power corresponding to the second frequency division output value Q3 is C, the power transistor array transmitting power is C is determined as the second power transistor array.
The TXD signal is used to distinguish between the power tube configuration values during the transmit period and the non-transmit period, and the power values of the commutated transmit and non-commutated transmit configurations during the transmit period are determined by the COUNT_SEL_NEW signal. The carrier cycle number of the commutation emission and the non-commutation emission and the independent configuration of the emission power amplitude value are realized through the joint control of the TXD signal, the COUNT_SEL signal and the COUNT_SEL_NEW signal.
S103, determining a reconstructed transmission signal according to the first transmission signal and the second transmission signal.
Here, the reconstructed transmission signal may be a transmission signal obtained by simply adding the first transmission signal and the second transmission signal, for example, in practical application, the transmitter transmits the spatial field strength under the cooperative control of the first transmission signal and the second transmission signal. Or, the reconstructed transmitting signal may be a transmitting signal obtained by translating the first transmitting signal and the second transmitting signal, for example, in practical application, the first transmitting signal and the second transmitting signal are translated into a unified transmitting signal according to a certain compiling rule, and the transmitter transmits the spatial field intensity under the control of the unified transmitting signal.
S104, controlling the transmitter to transmit the space field intensity according to the reconstructed transmission signal so as to adjust the energy dissipation of the antenna of the transmitter.
After the reconstruction transmission signal is determined, the transmitter is controlled to realize the independent configuration of the transmission carrier period and the transmission power of the commutation transmission and the non-commutation transmission according to the transmission space field intensity of the reconstruction transmission signal, so that the energy dissipation of the antenna of the transmitter is better regulated.
By adopting the method for adjusting the energy dissipation of the transmitter antenna, which is provided by the embodiment of the disclosure, the number of the transmitting carrier periods of the transmitting signals in the transmitting period is adjusted through the phase-change indicating signal to obtain the first transmitting signal, the transmitting power of the transmitting signals in each transmitting carrier period is adjusted through the phase-change indicating pre-judging signal to obtain the second transmitting signal, then the reconstruction transmitting signal is determined according to the first transmitting signal and the second transmitting signal, and the transmitter is controlled to transmit the space field intensity according to the reconstruction transmitting signal so as to adjust the energy dissipation of the transmitter antenna. Therefore, through joint configuration of the commutation indication signal and the commutation indication pre-judging signal, the number of transmitting carrier wave periods of the transmitter in a transmitting period and the transmitting power of each transmitting carrier wave period can be independently controlled, so that the energy dissipation of the transmitter antenna is adjusted, the modulation depth of the space field intensity envelope of NFC signals in the commutation transmission and the non-commutation transmission is kept consistent, the success rate of near field communication is improved, and the communication stability is better kept.
As shown in connection with fig. 2, an embodiment of the present disclosure provides a method for adjusting energy dissipation of a transmitter antenna, comprising the steps of:
s201, the first transmitting signal is obtained by adjusting the transmitting carrier wave period number of the transmitting signal in the transmitting period through the phase-change indicating signal.
S202, adjusting the transmitting power of the transmitting signal in each transmitting carrier period through the phase-change indication pre-judging signal to obtain a second transmitting signal.
S203, a reconstructed transmission signal is determined according to the first transmission signal and the second transmission signal.
S204, controlling the transmitter to transmit the space field intensity according to the reconstructed transmission signal so as to adjust the energy dissipation of the antenna of the transmitter.
S205, in the case that the transmitter adopts a target driving clock, the transmitting direction of the transmitting space field intensity of the transmitter is adjusted.
Optionally, adjusting the transmission direction of the transmitter transmission spatial field strength includes: controlling the forward transmitting space field intensity of the transmitter when the transmitter is in the first transmitting phase; and controlling the reverse transmission space field intensity of the transmitter when the transmitter is in the second transmission stage.
Here, the first transmission phase, i.e. during txd=0 transmission; the second transmission phase, txd=1 transmission period (original txd=1 non-transmission period).
Under the condition that the application environment is severe, the distance between the PCD and the PICC is far, and the transmission power tube value during TXD=0 is still insufficient to increase the spatial field intensity envelope modulation depth LMA, so that the stability of communication is affected. Therefore, the technical solution of the present disclosure uses forward transmission during the transmission with txd=0, and uses reverse transmission during the non-transmission with txd=1, i.e. active transmission during both txd=0 and txd=1, and uses forward transmission during txd=0, and uses reverse transmission during txd=1. From the TX end, it is the original: forward transmit during txd=0, no transmit during txd=1, TX1, TX2 ports pulled low to ground; after improvement, forward transmission is carried out during TXD=0, reverse transmission is carried out during TXD=1, and the TXD has 180-degree jump at 0 and 1 jump positions at the TX end.
Fig. 11A and 11B are schematic diagrams of effects before and after modulation depth adjustment of a spatial field intensity envelope according to an embodiment of the present disclosure. Referring to fig. 11A, before the transmitter reversely transmits the spatial field intensity, the spatial field intensity envelope modulation depth LMA is shallower; with reference to fig. 11B, after the transmitter reversely transmits the spatial field intensity, because the fields actively transmitted in two intervals of txd=0 and txd=1 are completely reversed, the effect of the positive superposition of the transmitting fields of the NFC PICC and the PCD card machine device is to enhance the spatial field intensity, and the effect of the reverse superposition is to weaken the spatial field intensity, so that the effect of increasing the spatial field intensity envelope modulation depth LMA is achieved.
Optionally, the target drive clock is determined as follows: obtaining the frequency and the phase of a transmitting clock of a receiver; adjusting an initial driving clock according to the frequency and the phase of the transmitting clock; and taking the adjusted initial driving clock as a target driving clock.
In practical application, the transmitter is used as NFC PICC, and the receiver is PCD; the transmitter is used as NFC PCD, and the receiver is used as NFC PICC.
The NFC system (including NFC PICC and PCD) includes a clocked mode and a non-clocked mode.
In the no-clock mode, the clock source is the clock recovered from the receiver. For NFC PICCs, for example, the clock source is the clock recovered from the counterpart PCD card. The NFC system performs frequency and phase calibration on the clock recovered from the opposite PCD card during the txd=1 non-transmission, ensuring that the transmission drive clock during each txd=0 transmission is always frequency and phase aligned with the clock of the PCD card. Thus, the present disclosure does not employ txd=0 forward transmission and txd=1 reverse transmission in the case of a transmitter employing a no-clock mode, as this can interfere with the process of recovering the clock and frequency and phase calibration from the PCD card.
In clocked mode, the clock source is the NFC device as an internal intrinsic clock source of NFC. For example, for NFC PICCs, the clock source performs frequency and phase calibration only once before transmitting the TXD data, so as to keep the frequency and phase of the driving clock actively transmitted by the NFC PICC consistent with the frequency and phase of the transmitting clock of the opposite PCD card, and does not process the clock during the period when the data txd=0 and txd=1 starts to be transmitted. Therefore, in the case that the transmitter adopts a clock mode (target driving clock), txd=0 is transmitted forward, txd=1 is transmitted reversely, the LMA depth can be increased, interference to the transmitting clock can not be generated, and therefore stability of communication is guaranteed.
In the embodiment of the disclosure, through joint configuration of the commutation indication signal and the commutation indication pre-judging signal, the number of transmitting carrier periods of the transmitter in a transmitting period and the transmitting power of each transmitting carrier period can be independently controlled, and meanwhile, under the condition that the transmitter adopts a target driving clock, the transmitting direction of the transmitting space field intensity of the transmitter is regulated, so that the energy dissipation of the antenna of the transmitter is regulated, the modulation depth of the space field intensity envelope of the NFC signal in the commutation transmission and the non-commutation transmission is kept consistent, the success rate of near field communication is improved, and the communication stability is kept.
As shown in connection with fig. 3, an embodiment of the present disclosure provides a method for adjusting energy dissipation of a transmitter antenna, comprising the steps of:
s301, when the commutation instruction signal is high, the first counter is used to adjust the transmission carrier cycle number of the transmission signal.
S302, when the commutation indication signal is low, the second counter is used for adjusting the transmission carrier period number of the transmission signal.
S303, obtaining a first transmission signal.
S304, under the condition that the commutation indication pre-judging signal is high, the transmitting power of the transmitter is adjusted by using the first power tube array.
And S305, when the commutation instruction pre-judging signal is low, adjusting the transmitting power of the transmitter by using the second power tube array.
S306, obtaining a second transmission signal.
S307, a reconstructed transmission signal is determined according to the first transmission signal and the second transmission signal.
S308, controlling the transmitter to transmit the space field intensity according to the reconstructed transmission signal.
S309, in the case that the transmitter adopts a target driving clock, the transmitting direction of the transmitting space field intensity of the transmitter is adjusted.
In the embodiment of the disclosure, through joint configuration of the commutation indication signal and the commutation indication pre-judging signal, the number of transmitting carrier periods of the transmitter in a transmitting period and the transmitting power of each transmitting carrier period can be independently controlled, and meanwhile, under the condition that the transmitter adopts a target driving clock, the transmitting direction of the transmitting space field intensity of the transmitter is regulated, so that the energy dissipation of the antenna of the transmitter is regulated, the modulation depth of the space field intensity envelope of the NFC signal in the commutation transmission and the non-commutation transmission is kept consistent, the success rate of near field communication is improved, and the communication stability is kept.
The disclosed embodiment shown in connection with fig. 12 provides an apparatus 1200 for adjusting transmitter antenna energy dissipation, comprising a first adjustment module 121, a second adjustment module 122, a reconstruction module 123, and a transmission module 124, wherein:
the first adjusting module 121 is configured to adjust the number of transmission carrier cycles of the transmission signal in the transmission period by the commutation indicating signal, so as to obtain a first transmission signal;
The second adjusting module 122 is configured to adjust the transmission power of the transmission signal in each transmission carrier period by the commutation indication pre-judging signal, so as to obtain a second transmission signal;
the reconstruction module 123 is configured to determine a reconstructed transmit signal from the first transmit signal and the second transmit signal;
the transmit module 124 is configured to control the transmitter to transmit the spatial field strength in accordance with the reconstructed transmit signal to adjust the transmitter antenna energy dissipation.
In some embodiments, the first adjusting module 121 is configured to adjust the number of transmission carrier cycles of the transmission signal with the first counter if the commutation indication signal is high; under the condition that the commutation indicating signal is low, the second counter is utilized to adjust the transmission carrier period number of the transmission signal; the carrier cycle number corresponding to the first counter is smaller than the carrier cycle number corresponding to the second counter.
Optionally, the first adjustment module 121 is configured to:
adjusting the number of transmit carrier cycles of the transmit signal with the first counter as follows, comprising: obtaining a first frequency division output value of a first counter; determining a first transmission carrier period number corresponding to the first frequency division output value; adjusting the transmission carrier cycle number of the transmission signal according to the first transmission carrier cycle number; and/or the number of the groups of groups,
Adjusting the number of transmit carrier cycles of the transmit signal with the second counter as follows, comprising: obtaining a second frequency division output value of a second counter; determining a second transmission carrier period number corresponding to the second frequency division output value; and adjusting the transmission carrier cycle number of the transmission signal according to the second transmission carrier cycle number.
In some embodiments, the second adjustment module is configured to adjust the transmit power of the transmitter with the first power transistor array if the commutation indication pre-determination signal is high; and under the condition that the commutation indication pre-judging signal is low, adjusting the transmitting power of the transmitter by using the second power tube array.
Optionally, the second adjustment module 122 is configured to:
the first power tube array is determined as follows: obtaining a first frequency division output value of a first counter; determining a power tube array corresponding to the first frequency division output value; determining a power tube array corresponding to the first frequency division output value as a first power tube array; and/or the number of the groups of groups,
the second power tube array is determined as follows: obtaining a second frequency division output value of a second counter; determining a power tube array corresponding to the second frequency division output value; and determining the power tube array corresponding to the second frequency division output value as a second power tube array.
In some embodiments, the transmit module 124 is further configured to adjust a transmit direction of the transmitter transmit spatial field strength if the transmitter employs a target drive clock.
Optionally, the transmitting module 124 is configured to adjust a transmitting direction of the transmitter transmitting spatial field strength as follows, including: controlling the forward transmitting space field intensity of the transmitter when the transmitter is in the first transmitting phase; and controlling the reverse transmission space field intensity of the transmitter when the transmitter is in the second transmission stage.
Optionally, the transmitting module 124 is configured to determine the target drive clock as follows: obtaining the frequency and the phase of a transmitting clock of a receiver; adjusting an initial driving clock according to the frequency and the phase of the transmitting clock; and taking the adjusted initial driving clock as a target driving clock.
By adopting the device for adjusting the energy dissipation of the transmitter antenna, which is provided by the embodiment of the disclosure, the number of the transmitting carrier periods of the transmitting signals in the transmitting period is adjusted through the phase-change indicating signal to obtain the first transmitting signal, the transmitting power of the transmitting signals in each transmitting carrier period is adjusted through the phase-change indicating pre-judging signal to obtain the second transmitting signal, then the reconstruction transmitting signal is determined according to the first transmitting signal and the second transmitting signal, and the transmitter is controlled to transmit the space field intensity according to the reconstruction transmitting signal so as to adjust the energy dissipation of the transmitter antenna. Therefore, through joint configuration of the commutation indication signal and the commutation indication pre-judging signal, the number of transmitting carrier wave periods of the transmitter in a transmitting period and the transmitting power of each transmitting carrier wave period can be independently controlled, so that the energy dissipation of the transmitter antenna is adjusted, the modulation depth of the space field intensity envelope of NFC signals in the commutation transmission and the non-commutation transmission is kept consistent, the success rate of near field communication is improved, and the communication stability is better kept.
The disclosed embodiment, shown in connection with fig. 13, provides an apparatus 1300 for regulating transmitter antenna energy dissipation, comprising a processor 130 and a memory 131, and may further comprise a communication interface (Communication Interface) 132 and a bus 133. The processor 130, the communication interface 132, and the memory 131 may communicate with each other via the bus 133. The communication interface 132 may be used for information transfer. Processor 130 may invoke logic instructions in memory 131 to perform the method of the above-described embodiments for adjusting transmitter antenna energy dissipation.
Further, the logic instructions in the memory 131 may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a separate product.
The memory 131 is a computer readable storage medium, and may be used to store a software program, a computer executable program, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. Processor 130 executes the program instructions/modules stored in memory 131 to perform functional applications and data processing, i.e., to implement the method for adjusting the energy dissipation of a transmitter antenna in the method embodiments described above.
The memory 131 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal device, etc. In addition, the memory 131 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an electronic device (such as a computer, a server and the like) comprising an electronic device main body; and the apparatus 1200/1300 for adjusting the energy dissipation of a transmitter antenna described above is mounted to an electronic device body.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for adjusting transmitter antenna energy dissipation.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for adjusting transmitter antenna energy dissipation.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of the embodiments of the present disclosure encompasses the full ambit of the claims, as well as all available equivalents of the claims. When used in the present application, although the terms "first," "second," etc. may be used in the present application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without changing the meaning of the description, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first element and the second element are both elements, but may not be the same element. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (9)
1. A method for regulating energy dissipation of a transmitter antenna, comprising:
adjusting the number of transmission carrier wave cycles of the transmission signal in a transmission period through the phase-change indication signal to obtain a first transmission signal;
adjusting the transmitting power of the transmitting signal in each transmitting carrier period through the phase-change indicating pre-judging signal to obtain a second transmitting signal;
determining a reconstructed transmit signal from the first transmit signal and the second transmit signal;
controlling the transmitter to transmit the spatial field intensity according to the reconstructed transmission signal so as to adjust the energy dissipation of the antenna of the transmitter;
the phase change indicating signal is set high when the transmitter is in a low-transmission phase change stage, and is set low when the transmitter is in a non-low-transmission phase change stage; the high point of the commutation indicating pre-judging signal is earlier than the high point of the commutation indicating signal, and the low point of the commutation indicating pre-judging signal is later than the low point of the commutation indicating signal;
adjusting the number of transmission carrier wave cycles of a transmission signal in a transmission period by a phase-change indication signal, comprising: under the condition that the commutation indication signal is high, the first counter is utilized to adjust the transmission carrier cycle number of the transmission signal; under the condition that the commutation indicating signal is low, the second counter is utilized to adjust the transmission carrier period number of the transmission signal; wherein the carrier wave cycle number corresponding to the first counter is smaller than the carrier wave cycle number corresponding to the second counter;
Adjusting the transmission power of the transmission signal in each transmission carrier period through the phase-change indication pre-judging signal, comprising: under the condition that the commutation indication pre-judging signal is high, the transmitting power of the transmitter is adjusted by using the first power tube array; and under the condition that the commutation indication pre-judging signal is low, adjusting the transmitting power of the transmitter by using the second power tube array.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
adjusting the number of transmit carrier cycles of the transmit signal with a first counter, comprising: obtaining a first frequency division output value of a first counter; determining a first transmission carrier period number corresponding to the first frequency division output value; adjusting the transmission carrier cycle number of the transmission signal according to the first transmission carrier cycle number; and/or the number of the groups of groups,
adjusting the number of transmit carrier cycles of the transmit signal using a second counter, comprising: obtaining a second frequency division output value of a second counter; determining a second transmission carrier period number corresponding to the second frequency division output value; and adjusting the transmission carrier cycle number of the transmission signal according to the second transmission carrier cycle number.
3. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the first power tube array is determined as follows: obtaining a first frequency division output value of a first counter; determining a power tube array corresponding to the first frequency division output value; determining a power tube array corresponding to the first frequency division output value as a first power tube array; and/or the number of the groups of groups,
The second power tube array is determined as follows: obtaining a second frequency division output value of a second counter; determining a power tube array corresponding to the second frequency division output value; and determining the power tube array corresponding to the second frequency division output value as a second power tube array.
4. A method according to claim 1, 2 or 3, further comprising:
and adjusting the transmitting direction of the transmitting space field intensity of the transmitter under the condition that the transmitter adopts the target driving clock.
5. The method of claim 4, wherein adjusting the transmit direction of the transmitter transmit spatial field strength comprises:
controlling the forward transmitting space field intensity of the transmitter when the transmitter is in the first transmitting phase;
and controlling the reverse transmission space field intensity of the transmitter when the transmitter is in the second transmission stage.
6. The method of claim 4, wherein the target drive clock is determined as follows:
obtaining the frequency and the phase of a transmitting clock of a receiver;
adjusting an initial driving clock according to the frequency and the phase of the transmitting clock;
and taking the adjusted initial driving clock as a target driving clock.
7. An apparatus for regulating energy dissipation of a transmitter antenna, comprising:
The first adjusting module is configured to adjust the transmission carrier wave period number of the transmission signal in the transmission period through the phase-change indicating signal to obtain a first transmission signal;
the second adjusting module is configured to adjust the transmitting power of the transmitting signal in each transmitting carrier period through the phase-change indication pre-judging signal to obtain a second transmitting signal;
a reconstruction module configured to determine a reconstructed transmit signal from the first transmit signal and the second transmit signal;
a transmission module configured to control the transmitter to transmit a spatial field strength in accordance with the reconstructed transmit signal to adjust transmitter antenna energy dissipation;
the phase change indicating signal is set high when the transmitter is in a low-transmission phase change stage, and is set low when the transmitter is in a non-low-transmission phase change stage; the high point of the commutation indicating pre-judging signal is earlier than the high point of the commutation indicating signal, and the low point of the commutation indicating pre-judging signal is later than the low point of the commutation indicating signal;
adjusting the number of transmission carrier wave cycles of a transmission signal in a transmission period by a phase-change indication signal, comprising: under the condition that the commutation indication signal is high, the first counter is utilized to adjust the transmission carrier cycle number of the transmission signal; under the condition that the commutation indicating signal is low, the second counter is utilized to adjust the transmission carrier period number of the transmission signal; wherein the carrier wave cycle number corresponding to the first counter is smaller than the carrier wave cycle number corresponding to the second counter;
Adjusting the transmission power of the transmission signal in each transmission carrier period through the phase-change indication pre-judging signal, comprising: under the condition that the commutation indication pre-judging signal is high, the transmitting power of the transmitter is adjusted by using the first power tube array; and under the condition that the commutation indication pre-judging signal is low, adjusting the transmitting power of the transmitter by using the second power tube array.
8. An apparatus for adjusting transmitter antenna energy dissipation comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for adjusting transmitter antenna energy dissipation of any of claims 1-6 when the program instructions are executed.
9. A transmitter, comprising:
a transmit clock logic configured to configure a drive clock state of the transmitter;
a transmit drive circuit, coupled to the transmit clock logic circuit, configured to drive signals of the transmit power transistors according to a drive clock state;
the transmitting power tube array circuit is connected with the transmitting driving circuit and is configured to transmit space field intensity according to signals of the transmitting power tubes; and, a step of, in the first embodiment,
apparatus for adjusting energy dissipation of a transmitter antenna as defined in claim 7 or 8.
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