Antenna assembly control method, antenna assembly and electronic equipment

Abstract

The present application provides an antenna assembly control method, an antenna assembly, and an electronic device. The method includes alternately transmitting a first and a second radio frequency signal in a first time period, wherein the transmission power of the first radio frequency signal is greater than the transmission power of the second radio frequency signal, and in the first time period D1=t 12 / (t 11 +t 12 ), t 11 , t 12 are the transmission durations of the first and second radio frequency signals in the first time period respectively; when the average power of the first radio frequency signal and the second radio frequency signal in the first time period is greater than the power corresponding to the upper limit of the regulatory SAR, at least the transmission power of the second radio frequency signal is maintained without decreasing in the second time period, and D2>D1, D2=t 22 / (t 21 +t 22 ), t 21 , t 22 The transmission durations of the first and second radio frequency signals in the second time period are respectively such that the average transmission power of the antenna assembly within the regulatory SAR monitoring window duration complies with regulations.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an antenna assembly control method, an antenna assembly, and an electronic device. Background Art

[0002] With the development of technology, electronic devices with communication functions (such as mobile phones, tablets, etc.) are becoming more and more widely used. Generally, electronic devices include antenna components, which are used to transmit and receive electromagnetic wave signals so that the electronic devices can communicate with other electronic devices. In order to ensure the safety of the antenna component in transmitting and receiving electromagnetic wave signals, SAR regulatory agencies in different countries and regions regulate the transmission power of the radio frequency signals emitted by the antenna component within the monitoring window to ensure that the average specific absorption rate (SAR) value within the monitoring window does not exceed the safe SAR value. For example, the Federal Communications Commission (FCC) of the United States stipulates that for radio frequency signals below 3GHz, the monitoring window duration is 100 seconds, and the average SAR value within 100 seconds shall not exceed 1.6W / Kg; for radio frequency signals above 3GHz, the monitoring window duration is 60 seconds, and the average SAR value within 60 seconds shall not exceed 1.6W / Kg. However, in the related art, the average SAR value within the monitoring window duration when the antenna component transmits and receives electromagnetic wave signals often exceeds the safe SAR value, thereby causing harm to the human body. Summary of the Invention

[0003] In a first aspect, an embodiment of the present application provides an antenna assembly control method, the antenna assembly control method comprising:

[0004] In the first time period, the first radio frequency signal and the second radio frequency signal are alternately transmitted, and the transmission power of the first radio frequency signal is greater than the transmission power of the second radio frequency signal, wherein the transmission time of the second radio frequency signal in the first time period accounts for D1=t 12 / (t 11 +t 12 ), where t 11 is the transmission duration of the first radio frequency signal in the first time period, t 12 is the transmission duration of the second radio frequency signal within the first time period;

[0005] Determining whether the average power of the first radio frequency signal and the second radio frequency signal in the first time period is greater than the power corresponding to the upper limit value of the regulatory SAR;

[0006] If yes, then at least keep the transmission power of the second radio frequency signal unchanged during the second time period, and make D2>D1, where D2=t22 / (t 21 +t 22 ), where D2 is the ratio of the transmission duration of the second radio frequency signal in the second time period, t 21 is the transmission duration of the first radio frequency signal in the second time period, t 22 The duration of transmission of the second radio frequency signal in the second time period is such that the average transmission power of the antenna assembly in the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit value of the regulatory SAR, where the regulatory SAR monitoring window includes the first time period and the second time period.

[0007] In a second aspect, an embodiment of the present application provides an antenna assembly, comprising: a transceiver, a first SIM card, a second SIM card, a switch, and a radiator, wherein the first SIM card and the second SIM card are both electrically connected to the transceiver, the switch switches one of the first SIM card and the second SIM card to be electrically connected to the radiator, the transceiver transmits a first radio frequency signal through the first SIM card, the switch, and the radiator, and the transceiver transmits and receives a second radio frequency signal through the second SIM card, the switch, and the radiator.

[0008] The transceiver is used for:

[0009] In the first time period, the first radio frequency signal and the second radio frequency signal are alternately transmitted, and the transmission power of the first radio frequency signal is greater than the transmission power of the second radio frequency signal, wherein the transmission time of the second radio frequency signal in the first time period accounts for D1=t 12 / (t 11 +t 12 ), where t 11 is the transmission duration of the first radio frequency signal in the first time period, t 12 is the transmission duration of the second radio frequency signal within the first time period;

[0010] Determining whether the average power of the first radio frequency signal and the second radio frequency signal in the first time period is greater than the power corresponding to the upper limit value of the regulatory SAR;

[0011] If yes, then at least keep the transmission power of the second radio frequency signal unchanged during the second time period, and make D2>D1, where D2=t 22 / (t 21 +t 22 ), where D2 is the ratio of the transmission duration of the second radio frequency signal in the second time period, t 21 is the transmission duration of the first radio frequency signal in the second time period, t 22The duration of transmission of the second radio frequency signal in the second time period is such that the average transmission power of the antenna assembly in the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit value of the regulatory SAR, where the regulatory SAR monitoring window includes the first time period and the second time period.

[0012] In a third aspect, an embodiment of the present application provides an electronic device, comprising the antenna assembly as described in the second aspect.

[0013] The antenna assembly provided in the embodiment of the present application does not adopt a method of fixed back-off RF power, but at least keeps the transmission power of the second RF signal from decreasing, and adopts a method of increasing the ratio of the transmission time of the second RF signal with smaller transmission power to the total transmission time in the second time period (i.e., D2>D1). Due to the increase in the ratio of the transmission time of the second RF signal with smaller transmission power to the total transmission time, the average transmission power of the antenna assembly within the regulatory SAR monitoring window duration is less than or equal to the power corresponding to the upper limit value of the regulatory SAR. It can be seen that the antenna assembly provided in the embodiment of the present application can make the SAR value corresponding to the average power of the first RF signal and the second RF signal transmitted by the antenna assembly meet the requirements of the regulatory SAR value within the regulatory SAR detection window duration. Compared with the method of adopting a fixed back-off RF power, the antenna assembly 10 provided in the embodiment of the present application can ensure that the first RF signal and the second RF signal transmitted by the antenna assembly meet the requirements of the regulatory SAR value within the regulatory SAR detection window duration, and can ensure the quality of communication of the antenna assembly 10 using the first RF signal and the second RF signal, avoiding the risk of disconnection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 A schematic diagram of an electronic device according to an embodiment of the related art;

[0016] Figure 2 for Figure 1 Circuit block diagram of the antenna assembly;

[0017] Figure 3 A schematic diagram of an electronic device according to another embodiment of the related art;

[0018] Figure 4 for Figure 3 Circuit block diagram of the antenna assembly;

[0019] Figure 5 for Figure 3 Schematic diagram of the working mode of the antenna component in DR-DSDA mode;

[0020] Figure 6 A schematic diagram of an electronic device provided in one embodiment of the present application;

[0021] Figure 7 for Figure 6 Circuit block diagram of the antenna assembly;

[0022] Figure 8 (a) Figure 6 Schematic diagram of the antenna assembly transmitting a first radio frequency signal and a second radio frequency signal in a first time period in the DR-DSDA mode;

[0023] Figure 8 (b) Figure 6 Schematic diagram of the antenna assembly transmitting the first radio frequency signal and the second radio frequency signal in the second time period in the DR-DSDA mode;

[0024] Figure 9 A flowchart of an antenna assembly control method provided in one embodiment of the present application;

[0025] Figure 10 In one embodiment Figure 9 Schematic diagram of the process included in S130;

[0026] Figure 11 In another embodiment Figure 9 Schematic diagram of the process included in S130;

[0027] Figure 12 A schematic diagram of an electronic device provided in one embodiment of the present application;

[0028] Figure 13 for Figure 12 A three-dimensional exploded schematic diagram of an electronic device provided in. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] It should be noted that the terms "first," "second," and so on in the specification, claims, and drawings of this application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0032] Before introducing the antenna assembly 10 provided in the embodiment of the present application, the antenna assembly 10 in the related art and the electronic device 1 to which the antenna assembly 10 is applied are first introduced. Figure 1 and Figure 2 , Figure 1 A schematic diagram of an electronic device according to an embodiment of the related art; Figure 2 for Figure 1 The electronic device 1 may be, but is not limited to, a mobile phone, a tablet computer, a wearable device, etc., and is not limited thereto. The electronic device 1 includes an antenna assembly 10. Typically, the antenna assembly 10 is located at the top of the electronic device 1 so that the antenna assembly 10 has a better communication effect. Figure 2 The antenna component 10 is located at the top of the electronic device 1 and in the upper left corner as an example. It can be understood that in other embodiments, the antenna component 10 can also be located at other positions of the electronic device 1, such as the upper right corner, or the lower left corner, or the lower right corner, etc., which is not limited in this embodiment.

[0033] The antenna assembly 10 includes a transceiver 110, a subscriber identity module (SIM) 120a, and a radiator 150. The transceiver 110 transmits and receives radio frequency signals through the SIM 120a and the radiator 150.

[0034] The SAR value, or Specific Absorption Rate (SAR), represents the amount of radiation per kilogram that a living organism (such as a human body) can absorb. Taking the human body as an example, SAR is specifically defined as the electromagnetic power absorbed or consumed per unit mass of human tissue, measured in W / Kg. Because the SAR value is related to the transmitted power of the RF signal, given the conductivity of the RF signal transmitted by the antenna assembly 10 and the state of the antenna assembly 10 (e.g., efficiency, gain, and environmental conditions), the higher the SAR value. A higher SAR value indicates a greater amount of radiation absorbed by the organism. For the safety of living organisms, particularly humans, it is necessary to set a maximum SAR value when the antenna assembly transmits RF signals. Currently, the two most popular international standards are 1.6 W / Kg by the FCC and 2.0 W / Kg in Europe and the United States. SAR regulatory agencies in different countries and regions regulate the transmitted power of the RF signal transmitted by the antenna assembly 10 during the monitoring window to ensure an average specific absorption ratio within the monitoring window. For example, the FCC stipulates that for radio frequency signals below 3 GHz, the monitoring window duration is 100 seconds, and the average SAR value within 100 seconds shall not exceed 1.6 W / Kg; for radio frequency signals above 3 GHz, the monitoring window duration is 60 seconds, and the average SAR value within 60 seconds shall not exceed 1.6 W / Kg.

[0035] In the related technology of this embodiment, when the antenna assembly 10 is working, the average transmission power of the radio frequency signal is monitored within a preset time period. When the average transmission power of the radio frequency signal is greater than the power P corresponding to the upper limit value of the regulatory SAR, limit (Max Power with SAR compliance), a fixed back-off method for RF power is adopted. Specifically, when the average transmission power of the RF signal within the preset time period is greater than the power corresponding to the upper limit value of the regulation, the transmission power of the antenna component 10 is backed off at a fixed back-off value, and the antenna component 10 transmits the RF signal using the backed-off transmission power. For example, when the average transmission power of the RF signal is 23dB within the preset time period, wherein the transmission power of the RF signal is 23dB, which is greater than the power corresponding to the upper limit value of the SAR in the regulation, then a back-off value of 3dB is selected, that is, the transmission is performed at a transmission power of 20dB, so as to ensure that the average SAR value of the RF signal within the monitoring window duration complies with the regulation, thereby avoiding the harm to the human body caused by the average SAR value exceeding the safe SAR value within the monitoring window duration when the antenna component 10 transmits and receives electromagnetic wave signals.

[0036] Different countries and regions have different regulations on the upper limit of SAR. For example, the Federal Communications Commission (FCC) in the United States stipulates that for radio frequency signals below 3GHz, the monitoring window is 100 seconds, and the average SAR value within 100 seconds must not exceed 1.6W / Kg; for radio frequency signals above 3GHz, the monitoring window is 60 seconds, and the average SAR value within 60 seconds must not exceed 1.6W / Kg.

[0037] Please also refer to Figure 3 、 Figure 4 and Figure 5 , Figure 3 A schematic diagram of an electronic device according to another embodiment of the related art; Figure 4 for Figure 3 Circuit block diagram of the antenna assembly; Figure 5 for Figure 3 Schematic diagram of the working mode of the antenna assembly in DR-DSDA mode. In this embodiment, the antenna assembly 10 includes a transceiver 110 (Transceiver), a first subscriber identity module (Subscriber Identity Module, SIM) 120, a second subscriber identity module 130, a switch 140 and a radiator 150. In this embodiment, the mode of the antenna assembly 10 is DR-DSDA mode (DualReceive Dual Standby Dual Active, DR-DSDA). Specifically, the first SIM 120 includes a first transmitting submodule 121 and a first receiving submodule 122. The second SIM 130 includes a second transmitting submodule 131 and a second receiving submodule 132. The first transmitting submodule 121 and the second transmitting submodule 131 are time-sharing combined at the switch 140. That is, the first transmitting submodule 121 and the second transmitting submodule 131 work in time-sharing. Specifically, when the first transmitting submodule 121 is working, the second transmitting submodule 131 is not working; when the second transmitting submodule 131 is working, the first transmitting submodule 121 is not working.

[0038] The transceiver 110 is used to transmit a first radio frequency signal through the first transmitting submodule 121 , and the transceiver 110 is used to transmit a second radio frequency signal through the second transmitting submodule 131 , and the first transmitting submodule 121 and the second transmitting submodule 131 are time-division combined under the control of the switch 140 .

[0039] exist Figure 5In FIG, the first radio frequency signal transmitted by the first transmitting submodule 121 is represented by SIM1 TX, and the second radio frequency signal transmitted by the second transmitting submodule 131 is represented by SIM2 TX. Correspondingly, the first radio frequency signal received by the first receiving submodule 122 is represented by SIM1 RX, and the second radio frequency signal received by the second receiving submodule 132 is represented by SIM2 RX. Figure 5 It can be seen that the first transmitting submodule 121 and the second transmitting submodule 131 work in a time-sharing manner.

[0040] In the related technology of this embodiment, when the antenna component 10 is working, it monitors the average transmission power of the first RF signal within a preset time period, and when the average transmission power of the first RF signal is greater than the power corresponding to the upper limit value of the regulatory SAR, a method of fixed back-off RF power is adopted. Specifically, when the average transmission power of the first RF signal within the preset time period is greater than the power corresponding to the upper limit value of the regulatory SAR, the transmission power of the antenna component 10 is backed off at a fixed back-off value, and the antenna component 10 transmits the first RF signal using the backed-off transmission power. For example, when the average transmission power of the first RF signal within the preset time period is 23dB, wherein the transmission power of the first RF signal is 23dB, which is greater than the power corresponding to the upper limit value of the regulatory SAR, then the back-off value is selected as 3dB, that is, the signal is transmitted at a transmission power of 20dB, wherein the transmission power of the first RF signal is 20dB, which is less than the power corresponding to the upper limit value of the regulatory SAR. For example, if the first SIM 120 operates in the N41 frequency band and the second SIM 130 operates in the LTE B3 frequency band, then if the average transmit power of the first RF signal during the preset time period exceeds the power corresponding to the regulatory upper limit, the transmit power of the antenna assembly 10 will be backed off at a fixed value. If the N41 is backed off by 3dB, then the LTE B3 will also be backed off by 3dB. In other words, in the related art, in the DR-DSDA state, both the N41 and LTE B3 are backed off by 3dB.

[0041] However, when the operating mode of the antenna assembly 10 is DR-DSDA, when a fixed RF power backoff method is used for the first RF signal transmitted by the antenna assembly 10, the second RF signal transmitted by the antenna assembly 10 will also be correspondingly backed off. For example, the transmit power of the second RF signal is also backed off by 3dB. If the transmit power of the second RF signal transmitted by the antenna assembly 10 is originally relatively low (i.e., the second SIM 130 transmits at a relatively low power), then the transmit power backoff may cause the performance of the antenna assembly 10 using the second RF signal to be reduced, and may even affect the risk of dropped calls when using the second RF signal for communication.

[0042] The following describes an antenna assembly 10 and an electronic device 1 to which the antenna assembly 10 is applied, provided in accordance with an embodiment of the present application. Figure 6 、 Figure 7 and Figure 8 , Figure 6 A schematic diagram of an electronic device provided in one embodiment of the present application; Figure 7 for Figure 6 Circuit block diagram of the antenna assembly; Figure 8 (a) Figure 6 Schematic diagram of the antenna assembly transmitting a first radio frequency signal and a second radio frequency signal in a first time period in the DR-DSDA mode; Figure 8 (b) Figure 6 Schematic diagram of the antenna assembly transmitting the first RF signal and the second RF signal in the second time period in the DR-DSDA mode. This embodiment provides an antenna assembly 10. The antenna assembly 10 can be applied to an electronic device 1 with communication functions, such as a mobile phone, a tablet computer, and a wearable device. The antenna assembly 10 includes a transceiver 110 (Transceiver), a first subscriber identity module (Subscriber Identity Module, SIM) 110, a second subscriber identity module 120, a switch 140, and a radiator 150. The first subscriber identity module is referred to as the first SIM 120, and the second subscriber identity module is referred to as the second SIM 130. The first SIM card 120 and the second SIM card 130 are both electrically connected to the transceiver 110. The switch 140 switches one of the first SIM card 120 and the second SIM card 130 to be electrically connected to the radiator 150. The transceiver 110 transmits a first radio frequency signal through the first SIM card 120, the switch 140, and the radiator 150. The transceiver 110 transmits and receives a second radio frequency signal through the second SIM card 130, the switch 140, and the radiator 150.

[0043] The transceiver 110 is configured to alternately transmit a first radio frequency signal and a second radio frequency signal within a first time period, wherein the transmission power of the first radio frequency signal is greater than the transmission power of the second radio frequency signal, wherein the transmission duration of the second radio frequency signal within the first time period accounts for D1=t 12 / (t 11 +t 12 ), where t 11 is the transmission duration of the first radio frequency signal in the first time period, t 12is the transmission duration of the second radio frequency signal in the first time period; determining whether the average power of the first radio frequency signal and the second radio frequency signal in the first time period is greater than the power corresponding to the upper limit value of the regulatory SAR; if so, maintaining the transmission power of the second radio frequency signal at least without decreasing in the second time period, and making D2>D1, where D2=t 22 / (t 21 +t 22 ), where D2 is the ratio of the transmission duration of the second radio frequency signal in the second time period, t 21 is the transmission duration of the first radio frequency signal in the second time period, t 22 The duration of transmission of the second radio frequency signal in the second time period is such that the average transmission power of the antenna assembly 10 in the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit value of the regulatory SAR, wherein the regulatory SAR monitoring window includes the first time period and the second time period.

[0044] It should be noted that the transceiver 110 makes D2>D1 in the second time period, that is, since D1=t 12 / (t 11 +t 12 ), D2=t 22 / (t 21 +t 22 ), therefore, it is equivalent to that the transceiver 110 adjusts the ratio of the transmission duration of the second radio frequency signal to the transmission duration of the first radio frequency signal in the second time period. That is, d2>d1, where d1=t 12 / t 11 , d2=t 22 / t 21 The subsequent relationship between D2 and D1 is equivalent to the relationship between d2 and d1, that is, when D2>D1, d2>d1; when D2<D1, d2<d1. The same applies to D3 and D4 introduced later, so I will not elaborate on them here.

[0045] It should be noted that, a determination is made as to whether the average power of the first RF signal and the second RF signal in the first time period is greater than the power corresponding to the upper limit of the regulatory SAR; if so, it indicates that the average power of the first RF signal and the second RF signal in the first time period is greater than the power corresponding to the upper limit of the regulatory SAR. If not, it indicates that the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit of the regulatory SAR. In this case, the transceiver 110 continues to transmit the first RF signal and the second RF signal in the second time period in the same manner as in the first time period, i.e., the first RF signal and the second RF signal are alternately transmitted in the second time period as in the first time period, and the transmit power of the first RF signal is greater than the transmit power of the second RF signal.

[0046] In other embodiments, if not, it means that the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit of the regulatory SAR. Then, the transceiver 110 may also adopt other strategies to alternately transmit the first RF signal and the second RF signal in the second time period, for example, to increase the transmit power of at least one of the first RF signal or the second RF signal in the second time period. In this way, the communication performance of the antenna assembly 10 can be improved while meeting the SAR requirements. Specifically, in one embodiment, if the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit of the regulatory SAR, then the transceiver 110 increases the transmit power of the first RF signal in the second time period (that is, the transmit power of the first RF signal in the second time period is greater than the transmit power of the first RF signal in the first time period) and keeps the transmit power of the second RF signal unchanged (that is, the transmit power of the second RF signal in the second time period is equal to the transmit power of the second RF signal in the first time period); or, the transceiver 110 increases the transmit power of the second RF signal in the second time period (that is, the transmit power of the second RF signal in the second time period is greater than the transmit power of the first RF signal in the first time period). The transmission power of the first RF signal in the second time period is greater than the transmission power of the second RF signal in the first time period), and the transmission power of the first RF signal is maintained (that is, the transmission power of the first RF signal in the second time period is equal to the transmission power of the first RF signal in the first time period); or, the transceiver 110 increases the transmission power of the first RF signal in the second time period (that is, the transmission power of the first RF signal in the second time period is greater than the transmission power of the first RF signal in the first time period), and the transceiver 110 increases the transmission power of the second RF signal in the second time period (that is, the transmission power of the second RF signal in the second time period is greater than the transmission power of the second RF signal in the first time period).

[0047] It can be seen that the antenna assembly 10 provided in the embodiment of the present application dynamically adjusts the transmission power of the first RF signal and the second RF signal. The SAR value in some time periods is higher than the upper limit of the regulatory SAR, while the SAR value in other time periods is lower than the upper limit of the regulatory SAR. On the one hand, the average transmission power of the antenna assembly 10 within the regulatory SAR monitoring window can be less than or equal to the power corresponding to the upper limit of the regulatory SAR. On the other hand, the antenna assembly 10 can have better communication performance.

[0048] In addition, in another embodiment, if not, it means that the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit value of the regulatory SAR, then the transceiver 110 increases the transmission time ratio of the first RF signal in the second time period, that is, D4>D3, wherein D3 is the transmission time ratio of the first RF signal in the first time period D3=t 11 / (t 11 +t 12 ), where t 11 is the transmission duration of the first radio frequency signal in the first time period, t 12 is the transmission duration of the second radio frequency signal in the first time period; D4=t 21 / (t 21 +t 22 ), where D4 is the ratio of the transmission duration of the first radio frequency signal in the second time period, t 21 is the transmission duration of the first radio frequency signal in the second time period, t 22 is the transmission duration of the second radio frequency signal in the second time period.

[0049] It can be seen that the antenna assembly 10 provided in the embodiment of the present application increases the proportion of the transmission time of the first radio frequency signal with higher power, and the SAR value in some time periods is higher than the upper limit of the regulatory SAR, while the SAR value in other time periods is less than the upper limit of the regulatory SAR. On the one hand, the average transmission power of the antenna assembly 10 within the regulatory SAR monitoring window can be less than or equal to the power corresponding to the upper limit of the regulatory SAR. On the other hand, the antenna assembly 10 can have better communication performance.

[0050] It should be noted that, as described herein: If not, it indicates that the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit value of the regulatory SAR, then the transceiver 110 increases the transmission time ratio of the first RF signal in the second time period, that is, so that D4>D3, that is, since D3=t 11 / (t 11 +t 12 ), D4=t 21 / (t 21 +t 22 ), therefore, it is equivalent to that the transceiver 110 adjusts the ratio of the transmission duration of the first radio frequency signal to the transmission duration of the second radio frequency signal in the second time period. That is, d4>d3, where d3=t 11 / t 12 , d4=t 21 / t 22 The subsequent relationship between D3 and D4 is equivalent to the relationship between d3 and d4.

[0051] It is understandable that the second time period is after the first time period, the first time period is less than the regulatory SAR monitoring window duration, and the second time period is less than the regulatory SAR monitoring window duration. The regulatory SAR monitoring window duration includes the first time period and the second time period. Specifically, the first time period and the second time period are both within the regulatory SAR monitoring window duration, and the regulatory SAR monitoring window duration is greater than or equal to the sum of the first time period and the second time period.

[0052] The transceiver 110 is configured to transmit a first RF signal and a second RF signal. The first RF signal has a different frequency than the second RF signal. The transceiver 110 alternately transmits the first RF signal and the second RF signal. Specifically, when the transceiver 110 transmits the first RF signal, it does not transmit the second RF signal; and when the transceiver 110 transmits the second RF signal, it does not transmit the first RF signal.

[0053] When the transceiver 110 alternately transmits the first RF signal and the second RF signal, in one embodiment, the transceiver 110 may transmit the first RF signal and the second RF signal periodically, or may transmit the first RF signal and the second RF signal aperiodically. The transceiver 110 may transmit the first RF signal and the second RF signal periodically. In other words, the time when the transceiver 110 transmits the first RF signal and the second RF signal may be divided into multiple time periods, each time period having the same duration, and the time period being a cycle. In different cycles, the time when the transceiver 110 transmits the first RF signal is the same; in different cycles, the time when the transceiver 110 transmits the second RF signal is the same. The transceiver 110 transmits the first RF signal and the second RF signal aperiodically. In other words, the time when the transceiver 110 transmits the first RF signal and the second RF signal may be divided into multiple time periods, with at least two time periods having different durations. When the transceiver 110 aperiodically transmits the first RF signal and the second RF signal, the duration of the first RF signal transmitted in different transmission time periods may be the same or different.

[0054] In this embodiment, the transceiver 110 periodically transmits the first radio frequency signal and the second radio frequency signal as an example. In the first time period, the transceiver 110 transmits the first radio frequency signal for a duration of t 11 The duration for the transceiver 110 to transmit the second radio frequency signal is t 12 The proportion of the transmission time of the second radio frequency signal in the first time period is D1, then, D1=t 12 / (t 11 +t12 ).

[0055] In one embodiment, the first SIM 120 includes a first transmitting submodule 121 (i.e., a first transmitting chain) and a first receiving submodule 122 (i.e., a first receiving chain). The transceiver 110 uses the first transmitting submodule 121 of the first SIM 120 to transmit the first RF signal, and the transceiver 110 uses the first receiving submodule 122 of the first SIM 120 to receive the first RF signal. The first transmitting submodule 121 of the first SIM 120 includes, but is not limited to, a power amplifier module. The first receiving submodule 122 of the first SIM 120 includes, but is not limited to, a low noise amplifier (LNA).

[0056] In one embodiment, the second SIM 130 includes a second transmitting submodule 131 (i.e., a second transmitting chain) and a second receiving submodule 132 (i.e., a second receiving chain). The transceiver 110 transmits the second RF signal using the second transmitting submodule 131 of the second SIM 130, and the transceiver 110 receives the second RF signal using the second receiving submodule 132 of the second SIM 130. The second transmitting submodule 131 of the second SIM 130 includes, but is not limited to, a power amplifier module. The second receiving submodule 132 of the second SIM 130 includes, but is not limited to, a low noise amplifier (LNA).

[0057] The switch 140 can be, but is not limited to, a single-pole double-throw (SPDT) switch. The switch 140 can switch between the first transmitter module 121 and the second transmitter module 131 based on a control signal. Therefore, the transceiver 110 transmits or receives either the first RF signal or the second RF signal at a given moment. In other words, the switch 140 can implement time-division combining of the first SIM card 120 and the second SIM card 130.

[0058] When the transceiver 110 determines that the average power of the first RF signal and the second RF signal in the first time period is greater than the power corresponding to the upper limit of the regulatory SAR for the time period, if the transceiver 110 continues to transmit the first RF signal and the second RF signal using the strategy of transmitting the first RF signal and the second RF signal in the first time period, the average transmission power within the regulatory SAR monitoring window will be greater than the power corresponding to the upper limit of the regulatory SAR. This will cause the average SAR value (Time Average SAR, TA SAR) within the regulatory SAR monitoring window to exceed the safe SAR value, thereby causing harm to the human body. The antenna assembly 10 provided in this embodiment at least maintains the transmission power of the second RF signal from decreasing during the second time period, and makes the transmission time ratio D2 of the second RF signal transmitted by the transceiver 110 greater than the transmission time ratio D1 of the second RF signal transmitted by the transceiver 110 during the first time period (i.e., D2>D1). That is, the transmission time ratio of the second RF signal with lower transmission power during the second time period is increased so that the average power P2 of the first RF signal and the second RF signal transmitted by the transceiver 110 during the second time period is less than the average power P1 of the first RF signal and the second RF signal transmitted by the transceiver 110 during the first time period, i.e., P2<P1. Thus, compared with the method of adopting a fixed back-off RF power, the antenna assembly 10 provided in the embodiment of the present application can ensure that the average SAR value corresponding to the average power of the first RF signal and the second RF signal transmitted by the antenna assembly 10 meets the regulatory SAR value requirements within the regulatory SAR detection window, and can ensure the quality of communication of the antenna assembly 10 using the first RF signal and the second RF signal, avoiding the risk of disconnection.

[0059] In summary, the antenna assembly 10 provided in the embodiment of the present application does not adopt a method of fixed back-off RF power, but at least keeps the transmission power of the second RF signal from decreasing, and adopts a method of increasing the ratio of the transmission time of the second RF signal with smaller transmission power to the total transmission time during the second time period (i.e., D2>D1). Due to the increase in the ratio of the transmission time of the second RF signal with smaller transmission power to the total transmission time, the average transmission power of the antenna assembly 10 within the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit value of the regulatory SAR. It can be seen from this that the antenna assembly 10 provided in the embodiment of the present application can make the SAR value corresponding to the average power of the first RF signal and the second RF signal transmitted by the antenna assembly 10 meet the requirements of the regulatory SAR value within the regulatory SAR detection window. Compared with the method of using a fixed back-off RF power, the antenna assembly 10 provided in the embodiment of the present application can ensure that the first RF signal and the second RF signal transmitted by the antenna assembly 10 are within the regulatory SAR detection window duration so that the average SAR value corresponding to the average power of the first RF signal and the second RF signal transmitted by the antenna assembly 10 meets the regulatory SAR value requirements, and can ensure the quality of communication of the antenna assembly 10 using the first RF signal and the second RF signal, avoiding the risk of disconnection.

[0060] It should be noted that different countries and regions have different regulations on the upper limit of regulatory SAR and the length of the regulatory SAR monitoring window. For example, the Federal Communications Commission (FCC) of the United States stipulates that for radio frequency signals below 3GHz, the regulatory SAR monitoring window duration is 100 seconds, and the average SAR value within 100 seconds must not exceed 1.6W / Kg, that is, the upper limit of the regulatory SAR is 1.6W / Kg; for radio frequency signals above 3GHz, the regulatory SAR monitoring window duration is 60 seconds, and the average SAR value within 60 seconds must not exceed 1.6W / Kg, that is, the upper limit of the regulatory SAR is 1.6W / Kg.

[0061] It should be noted that this application does not limit the manner in which the transceiver 110 receives the first RF signal and the second RF signal. In this embodiment, the antenna assembly 10 is described as a DR-DSDA. When the antenna assembly 10 is a DR-DSDA, when the antenna assembly 10 is in operation, the transceiver 110 can receive the first RF signal and the second RF signal at any time.

[0062] In one embodiment, the transceiver 110 is configured to: during the second time period, maintain the transmission power of the first RF signal and the second RF signal unchanged, and increase the transmission duration of the second RF signal, thereby making D2>D1.

[0063] In one embodiment, the first time period includes multiple first sub-time periods, and each of the first sub-time periods has the same duration. In each first sub-time period: the duration for which the transceiver 110 transmits the first radio frequency signal is the first sub-time period, and the duration for which the transceiver 110 transmits the second radio frequency signal is the second sub-time period. The second time period includes multiple second sub-time periods, and each of the second sub-time periods has the same duration. In each second sub-time period: the duration for which the transceiver 110 transmits the first radio frequency signal is the third sub-time period, and the duration for which the transceiver 110 transmits the second radio frequency signal is the fourth sub-time period. The third sub-time period is equal to the first sub-time period, and the fourth sub-time period is greater than the second sub-time period, such that D2>D1. In the antenna assembly 10 provided in this embodiment, the third sub-time period is equal to the first sub-time period, and the fourth sub-time period is greater than the second sub-time period, such that the transceiver 110 can easily control the transmission of the first radio frequency signal and the second radio frequency signal.

[0064] It can be understood that in the above embodiment, the duration of each first sub-time period in the multiple first sub-time periods is the same, and the duration of each second sub-time period in the multiple second sub-time periods is the same. In other embodiments, the duration of each first sub-time period in the multiple first sub-time periods may also be different, and accordingly, the duration of each second sub-time period in the multiple second sub-time periods may also be different, as long as the fourth sub-time period is greater than the second sub-time period, and D2>D1.

[0065] It can be understood that in other embodiments, the duration of each first sub-time period in the multiple first sub-time periods may be the same or different, and accordingly, the duration of each second sub-time period in the multiple second sub-time periods may be the same or different, and the fourth sub-time period may be greater than the second sub-time period or the fourth sub-time period may be less than or equal to the second sub-time period, as long as D2>D1 is satisfied.

[0066] When the fourth sub-duration is greater than the second sub-duration, the third sub-duration may be equal to, greater than, or less than the first sub-duration, as long as D2 > D1. When the fourth sub-duration is less than or equal to the second sub-duration, the third sub-duration may be less than the first sub-duration, as long as D2 > D1.

[0067] In the embodiment of the present application, the transceiver 110 maintains the transmission power of the first RF signal unchanged, and maintains the transmission power of the second RF signal unchanged, and increases the transmission duration of the second RF signal. When the transmission duration of the first RF signal remains unchanged, that is, the ratio of the transmission duration of the second RF signal with smaller transmission power to the total transmission duration is increased (that is, D2>D1), thereby reducing the average power of the first RF signal and the second RF signal transmitted by the transceiver 110. It can be seen that the antenna assembly 10 provided in the embodiment of the present application can ensure that the first RF signal and the second RF signal transmitted by the antenna assembly 10 are within the regulatory SAR detection window duration so that the SAR value corresponding to the average power of the first RF signal and the second RF signal transmitted by the antenna assembly 10 meets the regulatory SAR value requirements, and can ensure the quality of communication of the antenna assembly 10 using the first RF signal and the second RF signal, avoiding the risk of disconnection. It can be seen that compared with the method of using a fixed back-off RF power, the antenna assembly 10 provided in the embodiment of the present application can ensure that the first RF signal and the second RF signal emitted by the antenna assembly 10 are within the regulatory SAR detection window duration so that the average SAR value corresponding to the average power of the first RF signal and the second RF signal emitted by the antenna assembly 10 meets the regulatory SAR value requirements, and can ensure the quality of communication of the antenna assembly 10 using the first RF signal and the second RF signal, avoiding the risk of disconnection.

[0068] In one embodiment, the transceiver 110 is configured to: during the second time period, turn off the first radio frequency signal, and maintain or increase the transmission duration of the second radio frequency signal, so that D2>D1.

[0069] In an embodiment of the present application, the transceiver 110 turns off the first RF signal during the second time period, and maintains or increases the transmission duration of the second RF signal, thereby increasing the ratio of the transmission duration of the second RF signal with lower transmission power to the total transmission duration, that is, making D2>D1. It can be seen that the antenna assembly 10 provided in this embodiment increases the ratio of the transmission duration of the second RF signal with lower transmission power during the second time period, thereby making the average power P2 of the first and second RF signals transmitted by the transceiver 110 during the second time period less than the average power P1 of the first and second RF signals transmitted by the transceiver 110 during the first time period, that is, P2<P1. It can be seen that, compared with the method of using a fixed back-off RF power, the antenna assembly 10 provided in the embodiment of the present application can ensure that the average SAR value corresponding to the average power of the first and second RF signals transmitted by the antenna assembly 10 meets the regulatory SAR value requirements within the regulatory SAR detection window, and can also ensure the quality of communication using the second RF signal with lower transmission power by the antenna assembly 10, avoiding the risk of disconnection.

[0070] Optionally, after the transceiver 110 turns off the first RF signal in the second time period and maintains or increases the transmission duration of the second RF signal, the transceiver 110 is further used to: determine whether the average power of the second RF signal in the third time period is less than the power corresponding to the upper limit value of the regulatory SAR; and when the average power of the second RF signal in the third time period is less than the power corresponding to the upper limit value of the regulatory SAR, start transmitting the first RF signal.

[0071] The third time period of the time period is a time period located after the second time period. When the average power of the second RF signal in the third time period of the time period is less than the preset power, it indicates that the average SAR value corresponding to the average power of the second RF signal transmitted by the antenna assembly 10 meets the regulatory SAR value requirements. Re-enabling the first RF signal allows the antenna assembly 10 to communicate using the first RF signal and the second RF signal, so that the antenna assembly 10 has better communication performance.

[0072] It should be noted that, in the above embodiment, the greater the difference between the average power of the first RF signal and the second RF signal in the first time period and the power corresponding to the upper limit of the regulatory SAR, the greater the D2-D1.

[0073] The greater the difference between the average power of the first RF signal and the second RF signal in the first time period and the power corresponding to the upper limit of the regulatory SAR, the greater the D2-D1. The transmission time ratio of the second RF signal in the second time period can be adaptively adjusted according to the difference between the average power of the first RF signal and the second RF signal in the first time period and the power corresponding to the upper limit of the regulatory SAR, so that the average transmission power of the antenna assembly 10 in the regulatory SAR monitoring window can be quickly made less than or equal to the power corresponding to the upper limit of the regulatory SAR.

[0074] This application also provides a method for controlling an antenna assembly 10, which is applicable to the aforementioned antenna assembly 10. The antenna assembly 10 can execute the method for controlling the antenna assembly 10 provided in the embodiments of this application. The method for controlling the antenna assembly 10 provided in the embodiments of this application is described below.

[0075] Please also Figure 8 and Figure 9 , Figure 9 This is a flow chart of an antenna assembly control method provided in one embodiment of the present application. The antenna assembly 10 control method includes but is not limited to S110, S120 and S130, which are described in detail below.

[0076] S110: In a first time period, alternately transmit a first radio frequency signal and a second radio frequency signal, wherein the transmission power of the first radio frequency signal is greater than the transmission power of the second radio frequency signal, wherein the transmission duration of the second radio frequency signal in the first time period accounts for D1=t 12 / (t 11 +t 12 ), where t 11 is the transmission duration of the first radio frequency signal in the first time period, t 12 is the transmission duration of the second radio frequency signal within the first time period;

[0077] S120: Determine whether the average power of the first radio frequency signal and the second radio frequency signal in the first time period is greater than the power corresponding to the upper limit of the regulatory SAR;

[0078] S130: If yes, then at least keep the transmission power of the second radio frequency signal unchanged during the second time period, and make D2>D1, where D2=t 22 / (t 21 +t 22 ), where D2 is the ratio of the transmission duration of the second radio frequency signal in the second time period, t 21 is the transmission duration of the first radio frequency signal in the second time period, t 22The duration of transmission of the second radio frequency signal in the second time period is such that the average transmission power of the antenna assembly 10 in the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit value of the regulatory SAR, wherein the regulatory SAR monitoring window includes the first time period and the second time period.

[0079] It should be noted that a determination is made as to whether the average power of the first RF signal and the second RF signal in the first time period is greater than the power corresponding to the upper limit of the regulatory SAR. If so, it indicates that the average power of the first RF signal and the second RF signal in the first time period is greater than the power corresponding to the upper limit of the regulatory SAR. If not, it indicates that the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit of the regulatory SAR. In this case, the transceiver 110 continues to maintain the strategy of transmitting the first RF signal and the second RF signal in the first time period in the second time period, that is, alternately transmitting the first RF signal and the second RF signal in the second time period, and the transmit power of the first RF signal is greater than the transmit power of the second RF signal.

[0080] In other embodiments, if not, it means that the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit of the regulatory SAR. Then, the transceiver 110 may also adopt other strategies to alternately transmit the first RF signal and the second RF signal in the second time period, for example, to increase the transmit power of at least one of the first RF signal or the second RF signal in the second time period. In this way, the communication performance of the antenna assembly 10 can be improved while meeting the SAR requirements. Specifically, in one embodiment, if the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit of the regulatory SAR, then the transceiver 110 increases the transmit power of the first RF signal in the second time period (that is, the transmit power of the first RF signal in the second time period is greater than the transmit power of the first RF signal in the first time period) and keeps the transmit power of the second RF signal unchanged (that is, the transmit power of the second RF signal in the second time period is equal to the transmit power of the second RF signal in the first time period); or, the transceiver 110 increases the transmit power of the second RF signal in the second time period (that is, the transmit power of the second RF signal in the second time period is greater than the transmit power of the first RF signal in the first time period). The transmission power of the first RF signal in the second time period is greater than the transmission power of the second RF signal in the first time period), and the transmission power of the first RF signal is maintained (that is, the transmission power of the first RF signal in the second time period is equal to the transmission power of the first RF signal in the first time period); or, the transceiver 110 increases the transmission power of the first RF signal in the second time period (that is, the transmission power of the first RF signal in the second time period is greater than the transmission power of the first RF signal in the first time period), and the transceiver 110 increases the transmission power of the second RF signal in the second time period (that is, the transmission power of the second RF signal in the second time period is greater than the transmission power of the second RF signal in the first time period).

[0081] It can be seen that the antenna assembly 10 provided in the embodiment of the present application dynamically adjusts the transmission power of the first RF signal and the second RF signal. The SAR value in some time periods is higher than the upper limit of the regulatory SAR, while the SAR value in other time periods is less than the upper limit of the regulatory SAR. On the one hand, it can achieve that the average transmission power of the antenna assembly 10 within the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit of the regulatory SAR. On the other hand, it can make the antenna assembly 10 have better communication performance. In addition, in another embodiment, if no, it means that the average power of the first RF signal and the second RF signal in the first time period is less than or equal to the power corresponding to the upper limit of the regulatory SAR. Then, the transceiver 110 increases the transmission time ratio of the first RF signal in the second time period, that is, D4>D3, where D3 is the transmission time ratio of the first RF signal in the first time period. D3=t 11 / (t 11 +t 12 ), where t 11 is the transmission duration of the first radio frequency signal in the first time period, t 12 is the transmission duration of the second radio frequency signal in the first time period; D4=t 21 / (t 21 +t 22 ), where D4 is the ratio of the transmission duration of the first radio frequency signal in the second time period, t 21 is the transmission duration of the first radio frequency signal in the second time period, t 22 is the transmission duration of the second radio frequency signal in the second time period.

[0082] It can be seen that the antenna assembly 10 provided in the embodiment of the present application increases the proportion of the transmission time of the first radio frequency signal with higher power, and the SAR value in some time periods is higher than the upper limit of the regulatory SAR, while the SAR value in other time periods is less than the upper limit of the regulatory SAR. On the one hand, the average transmission power of the antenna assembly 10 within the regulatory SAR monitoring window can be less than or equal to the power corresponding to the upper limit of the regulatory SAR. On the other hand, the antenna assembly 10 can have better communication performance.

[0083] In summary, the control method of the antenna assembly 10 provided in the embodiment of the present application does not adopt the method of fixed back-off RF power, but at least keeps the transmission power of the second RF signal from decreasing, and adopts the method of increasing the ratio of the transmission time of the second RF signal with smaller power to the total transmission time in the second time period (i.e., D2>D1). By increasing the ratio of the transmission time of the second RF signal with smaller power to the total transmission time in the second time period (i.e., D2>D1), the transmission time of the second RF signal and the ratio of the transmission time of the first RF signal are also increased. Due to the increase in the ratio of the transmission time of the second RF signal with smaller transmission power to the total transmission time, the average transmission power of the antenna assembly 10 within the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit value of the regulatory SAR. It can be seen that the antenna assembly 10 provided in the embodiment of the present application can make the SAR value corresponding to the average power of the first RF signal and the second RF signal transmitted by the antenna assembly 10 meet the requirements of the regulatory SAR value within the regulatory SAR detection window. Compared with the method of using a fixed back-off RF power, the antenna assembly 10 provided in the embodiment of the present application can ensure that the first RF signal and the second RF signal transmitted by the antenna assembly 10 are within the regulatory SAR detection window duration so that the average SAR value corresponding to the average power of the first RF signal and the second RF signal transmitted by the antenna assembly 10 meets the regulatory SAR value requirements, and can ensure the quality of communication of the antenna assembly 10 using the first RF signal and the second RF signal, avoiding the risk of disconnection.

[0084] It should be noted that different countries and regions have different regulations on the upper limit of regulatory SAR and the length of the regulatory SAR monitoring window. For example, the Federal Communications Commission (FCC) of the United States stipulates that for radio frequency signals below 3GHz, the regulatory SAR monitoring window duration is 100 seconds, and the average SAR value within 100 seconds must not exceed 1.6W / Kg, that is, the upper limit of the regulatory SAR is 1.6W / Kg; for radio frequency signals above 3GHz, the regulatory SAR monitoring window duration is 60 seconds, and the average SAR value within 60 seconds must not exceed 1.6W / Kg, that is, the upper limit of the regulatory SAR is 1.6W / Kg.

[0085] It should be noted that this application does not limit the manner in which the transceiver 110 receives the first RF signal and the second RF signal. In this embodiment, the antenna assembly 10 is described as a DR-DSDA. When the antenna assembly 10 is a DR-DSDA, when the antenna assembly 10 is in operation, the transceiver 110 can receive the first RF signal and the second RF signal at any time.

[0086] See also Figure 10 , Figure 10 In one embodiment Figure 9 Schematic diagram of the process included in S130. S130 specifically includes S131, which is described in detail as follows.

[0087] S131 : During the second time period, maintain the transmission power of the first radio frequency signal and the second radio frequency signal unchanged, and increase the transmission duration of the second radio frequency signal, so that D2>D1.

[0088] In one embodiment, the first time period includes multiple first sub-time periods, and each of the first sub-time periods has the same duration. In each first sub-time period: the duration for which the transceiver 110 transmits the first radio frequency signal is the first sub-time period, and the duration for which the transceiver 110 transmits the second radio frequency signal is the second sub-time period. The second time period includes multiple second sub-time periods, and each of the second sub-time periods has the same duration. In each second sub-time period: the duration for which the transceiver 110 transmits the first radio frequency signal is the third sub-time period, and the duration for which the transceiver 110 transmits the second radio frequency signal is the fourth sub-time period. The third sub-time period is equal to the first sub-time period, and the fourth sub-time period is greater than the second sub-time period, such that D2>D1. In the antenna assembly 10 provided in this embodiment, the third sub-time period is equal to the first sub-time period, and the fourth sub-time period is greater than the second sub-time period, such that the transceiver 110 can easily control the transmission of the first radio frequency signal and the second radio frequency signal.

[0089] It can be understood that in the above embodiment, the duration of each first sub-time period in the multiple first sub-time periods is the same, and the duration of each second sub-time period in the multiple second sub-time periods is the same. In other embodiments, the duration of each first sub-time period in the multiple first sub-time periods may also be different, and accordingly, the duration of each second sub-time period in the multiple second sub-time periods may also be different, as long as the fourth sub-time period is greater than the second sub-time period, and D2>D1.

[0090] It can be understood that in other embodiments, the duration of each first sub-time period in the multiple first sub-time periods may be the same or different, and accordingly, the duration of each second sub-time period in the multiple second sub-time periods may be the same or different, and the fourth sub-time period may be greater than the second sub-time period or the fourth sub-time period may be less than or equal to the second sub-time period, as long as D2>D1 is satisfied.

[0091] When the fourth sub-duration is greater than the second sub-duration, the third sub-duration may be equal to, greater than, or less than the first sub-duration, as long as D2 > D1. When the fourth sub-duration is less than or equal to the second sub-duration, the third sub-duration may be less than the first sub-duration, as long as D2 > D1.

[0092] In the embodiment of the present application, the transceiver 110 maintains the transmission power of the first RF signal unchanged, and maintains the transmission power of the second RF signal unchanged, and increases the transmission duration of the second RF signal. When the transmission duration of the first RF signal remains unchanged, that is, the ratio of the transmission duration of the second RF signal with smaller transmission power to the total transmission duration is increased (that is, D2>D1), thereby reducing the average power of the first RF signal and the second RF signal transmitted by the transceiver 110. It can be seen that the antenna assembly 10 provided in the embodiment of the present application can ensure that the first RF signal and the second RF signal transmitted by the antenna assembly 10 are within the regulatory SAR detection window duration so that the SAR value corresponding to the average power of the first RF signal and the second RF signal transmitted by the antenna assembly 10 meets the regulatory SAR value requirements, and can ensure the quality of communication of the antenna assembly 10 using the first RF signal and the second RF signal, avoiding the risk of disconnection. It can be seen that compared with the method of using a fixed back-off RF power, the antenna assembly 10 provided in the embodiment of the present application can ensure that the first RF signal and the second RF signal emitted by the antenna assembly 10 are within the regulatory SAR detection window duration so that the average SAR value corresponding to the average power of the first RF signal and the second RF signal emitted by the antenna assembly 10 meets the regulatory SAR value requirements, and can ensure the quality of communication of the antenna assembly 10 using the first RF signal and the second RF signal, avoiding the risk of disconnection.

[0093] See also Figure 11 , Figure 11 In another embodiment Figure 9 Schematic diagram of the process included in S130. S130 specifically includes S132, which is described in detail as follows.

[0094] S132: In a second time period, turn off the first radio frequency signal, and maintain or increase the transmission duration of the second radio frequency signal, so that D2>D1.

[0095] In an embodiment of the present application, the transceiver 110 turns off the first RF signal during the second time period, and maintains or increases the transmission duration of the second RF signal, thereby increasing the ratio of the transmission duration of the second RF signal with lower transmission power to the total transmission duration, that is, making D2>D1. It can be seen that the antenna assembly 10 provided in this embodiment increases the ratio of the transmission duration of the second RF signal with lower transmission power during the second time period, thereby making the average power P2 of the first and second RF signals transmitted by the transceiver 110 during the second time period less than the average power P1 of the first and second RF signals transmitted by the transceiver 110 during the first time period, that is, P2<P1. It can be seen that, compared with the method of using a fixed back-off RF power, the antenna assembly 10 provided in the embodiment of the present application can ensure that the average SAR value corresponding to the average power of the first and second RF signals transmitted by the antenna assembly 10 meets the regulatory SAR value requirements within the regulatory SAR detection window, and can also ensure the quality of communication using the second RF signal with lower transmission power by the antenna assembly 10, avoiding the risk of disconnection.

[0096] Optionally, in one embodiment, the control method of the antenna assembly 10 further includes S150 and S160 after S132 , and S150 and S160 are described in detail as follows.

[0097] S150: Determine whether the average power of the second radio frequency signal in the third time period is less than the power corresponding to the upper limit value of the regulatory SAR.

[0098] S160: When the average power of the second radio frequency signal in the third time period is less than the power corresponding to the upper limit of the regulatory SAR, start transmitting the first radio frequency signal.

[0099] The third time period of the time period is a time period located after the second time period. When the average power of the second RF signal in the third time period of the time period is less than the preset power, it indicates that the average SAR value corresponding to the average power of the second RF signal transmitted by the antenna assembly 10 meets the regulatory SAR value requirements. Re-enabling the first RF signal allows the antenna assembly 10 to communicate using the first RF signal and the second RF signal, so that the antenna assembly 10 has better communication performance.

[0100] It should be noted that, in the above embodiment, the greater the difference between the average power of the first RF signal and the second RF signal in the first time period and the power corresponding to the upper limit of the regulatory SAR, the greater the D2-D1.

[0101] The greater the difference between the average power of the first RF signal and the second RF signal in the first time period and the power corresponding to the upper limit of the regulatory SAR, the greater the D2-D1. The transmission time ratio of the second RF signal in the second time period can be adaptively adjusted according to the difference between the average power of the first RF signal and the second RF signal in the first time period and the power corresponding to the upper limit of the regulatory SAR, so that the average transmission power of the antenna assembly 10 in the regulatory SAR monitoring window can be quickly made less than or equal to the power corresponding to the upper limit of the regulatory SAR.

[0102] This application also provides an electronic device 1. Please refer to Figure 12 and Figure 13 , Figure 12 A schematic diagram of an electronic device provided in one embodiment of the present application; Figure 13 for Figure 12 The electronic device 1 includes an antenna assembly 10 as described in any of the above embodiments. Please refer to the above description of the antenna assembly 10 and will not be described again here. The electronic device 1 includes the antenna assembly 10 to realize the communication function of the electronic device 1. This application does not specifically limit the position of the antenna assembly 10 on the electronic device 1. Figure 12 and Figure 13 This is just an example. The electronic device 1 further includes a display screen 20 and a housing 30 that cover and connect each other. The antenna assembly 10 can be disposed inside the housing 30 of the electronic device 1, partially integrated with the housing 30, or partially disposed outside the housing 30.

[0103] The electronic device 1 includes, but is not limited to, a mobile phone, telephone, television, tablet computer, camera, personal computer, laptop computer, vehicle-mounted device, headset, watch, wearable device, base station, vehicle-mounted radar, customer premise equipment (CPE), and other devices capable of transmitting and receiving electromagnetic wave signals. In this application, the electronic device 1 is taken as an example of a mobile phone. For other devices, please refer to the detailed description in this application.

[0104] See also Figure 12 and Figure 13, the shell 30 includes a frame 310 and a back cover 320. A middle plate 330 is formed in the frame 310 by injection molding, and a plurality of mounting slots for mounting various electronic devices are formed on the middle plate 330. One side (for example, the back side) of the frame 310 is connected to the periphery of the back cover 320, and the other side (for example, the front side) of the frame 310 is connected to the periphery of the display screen 20. The electronic device 1 also includes a circuit board 50 and a battery 60 arranged in the receiving space. In addition, the electronic device 1 also includes a camera module, a microphone, a receiver, a speaker, a face recognition module, a fingerprint recognition module, etc., which are arranged in the receiving space and can realize the basic functions of the mobile phone. They are not described in detail in this embodiment. It can be understood that the above introduction to the electronic device 1 is only an explanation of an environment in which the antenna assembly 10 is used, and the specific structure of the electronic device 1 should not be understood as a limitation on the antenna assembly 10 provided in this application.

[0105] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A method for controlling an antenna assembly, characterized in that: The antenna assembly control method includes: In the first time period, the first radio frequency signal and the second radio frequency signal are alternately transmitted, and the transmission power of the first radio frequency signal is greater than the transmission power of the second radio frequency signal, wherein the transmission time of the second radio frequency signal in the first time period accounts for D1=t 12 / (t 11 +t 12 ), where t 11 is the transmission duration of the first radio frequency signal in the first time period, t 12 is the transmission duration of the second radio frequency signal within the first time period; Determining whether the average power of the first radio frequency signal and the second radio frequency signal in the first time period is greater than the power corresponding to the upper limit value of the regulatory SAR; If yes, then at least keep the transmission power of the second radio frequency signal unchanged during the second time period, and make D2>D1, where D2=t 22 / (t 21 +t 22 ), where D2 is the ratio of the transmission duration of the second radio frequency signal in the second time period, t 21 is the transmission duration of the first radio frequency signal in the second time period, t 22 The duration of transmission of the second radio frequency signal within the second time period is such that the SAR value of the antenna assembly in part of the transmission time period within the regulatory SAR monitoring window is higher than the upper limit of the regulatory SAR value, and the SAR value in another part of the time period is lower than the upper limit of the regulatory SAR value, and the average transmission power within the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit of the regulatory SAR value, wherein the regulatory SAR monitoring window includes the first time period and the second time period.

2. The antenna assembly control method according to claim 1, wherein: The step of making D2>D1 in the second time period includes: In the second time period, the transmission power of the first radio frequency signal and the second radio frequency signal is kept unchanged, and the transmission duration of the second radio frequency signal is increased so that D2>D1.

3. The antenna assembly control method according to claim 1, wherein: The step of making D2>D1 in the second time period includes: In the second time period, the first radio frequency signal is turned off, and the transmission duration of the second radio frequency signal is maintained or increased so that D2>D1.

4. The antenna assembly control method according to claim 3, wherein during the second time period, the first radio frequency signal is turned off, and the transmission time of the second radio frequency signal is maintained or increased, so that t 22 ≥t 12 Afterwards, the control method further includes: Determining whether the average power of the second radio frequency signal in the third time period is less than the power corresponding to the upper limit value of the regulatory SAR; When the average power of the second radio frequency signal in the third time period is less than the power corresponding to the upper limit value of the regulatory SAR, the transmission of the first radio frequency signal is started.

5. The antenna assembly control method according to claim 1, wherein: If not, the transmit power of at least one of the first radio frequency signal or the second radio frequency signal is increased within a second time period.

6. The antenna assembly control method according to claim 1, wherein: If not, in the second time period, D4>D3, D3 is the proportion of the transmission time of the first radio frequency signal in the first time period, D4 is the proportion of the transmission time of the first radio frequency signal in the second time period, and D3=t 11 / (t 11 +t 12 ), D4=t 21 / (t 21 +t 22 ).

7. An antenna assembly, characterized in that: The antenna assembly includes: a transceiver, a first SIM card, a second SIM card, a switch, and a radiator. The first SIM card and the second SIM card are both electrically connected to the transceiver. The switch switches one of the first SIM card and the second SIM card to be electrically connected to the radiator. The transceiver transmits a first radio frequency signal through the first SIM card, the switch, and the radiator. The transceiver transmits and receives a second radio frequency signal through the second SIM card, the switch, and the radiator. The transceiver is used for: In the first time period, the first radio frequency signal and the second radio frequency signal are alternately transmitted, and the transmission power of the first radio frequency signal is greater than the transmission power of the second radio frequency signal, wherein the transmission time of the second radio frequency signal in the first time period accounts for D1=t 12 / (t 11 +t 12 ), where t 11 is the transmission duration of the first radio frequency signal in the first time period, t 12 is the transmission duration of the second radio frequency signal within the first time period; Determining whether the average power of the first radio frequency signal and the second radio frequency signal in the first time period is greater than the power corresponding to the upper limit value of the regulatory SAR; If yes, then at least keep the transmission power of the second radio frequency signal unchanged during the second time period, and make D2>D1, where D2=t 22 / (t 21 +t 22 ), where D2 is the ratio of the transmission duration of the second radio frequency signal in the second time period, t 21 is the transmission duration of the first radio frequency signal in the second time period, t 22 The duration of transmission of the second radio frequency signal within the second time period is such that the SAR value of the antenna assembly in part of the transmission time period within the regulatory SAR monitoring window is higher than the upper limit of the regulatory SAR value, and the SAR value in another part of the time period is lower than the upper limit of the regulatory SAR value, and the average transmission power within the regulatory SAR monitoring window is less than or equal to the power corresponding to the upper limit of the regulatory SAR value, wherein the regulatory SAR monitoring window includes the first time period and the second time period.

8. The antenna assembly according to claim 7, wherein: The transceiver is used for: In the second time period, the transmission power of the first radio frequency signal and the second radio frequency signal is kept unchanged, and the transmission duration of the second radio frequency signal is increased so that D2>D1.

9. The antenna assembly according to claim 7, wherein: The transceiver is used for: In the second time period, the first radio frequency signal is turned off, and the transmission duration of the second radio frequency signal is maintained or increased so that D2>D1.

10. The antenna assembly according to claim 9, wherein after turning off the first radio frequency signal and maintaining or increasing the transmission duration of the second radio frequency signal within the second time period, the transceiver is further configured to: Determining whether the average power of the second radio frequency signal in the third time period is less than the power corresponding to the upper limit value of the regulatory SAR; When the average power of the second radio frequency signal in the third time period is less than the power corresponding to the upper limit of the regulatory SAR, the transmission of the first radio frequency signal is started.

11. The antenna assembly according to claim 7, wherein: If not, the transmit power of at least one of the first radio frequency signal or the second radio frequency signal is increased within a second time period.

12. The antenna assembly according to claim 7, wherein: If not, in the second time period, D4>D3, D3 is the proportion of the transmission time of the first radio frequency signal in the first time period, D4 is the proportion of the transmission time of the first radio frequency signal in the second time period, and D3=t 11 / (t 11 +t 12 ), D4=t 21 / (t 21 +t 22 ).

13. An electronic device, characterized in that: The electronic device comprises the antenna assembly according to any one of claims 7 to 12.

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