Communication method based on dual-card terminal and dual-card terminal

Abstract

The invention provides a communication method based on a dual-card terminal and the dual-card terminal, and relates to the technical field of communication. The method provided by the invention comprises the following steps: when a first SIM card is detected to be in a call service and a second SIM card is detected to be in a data processing service, the second SIM card uses N antennas to send radio frequency signals in turn and uses the N antennas to receive the radio frequency signals, a first antenna in the N antennas is bound with a first master set receiving unit and a transmitting unit, and a second antenna in the N antennas is bound with a second master set receiving unit; the second antenna is bound with the first diversity receiving unit; the first SIM card uses the first antenna to send the radio frequency signal and uses M-N antennas to receive the radio frequency signal, and the M-N antennas correspond to the second main diversity receiving unit of the first SIM card. By adopting the method provided by the invention, when the first SIM card is in the call state and the second SIM card is in the data processing service state in the dual-card terminal, the second SIM card can alternately transmit the radio frequency signals in the plurality of antennas, so that the data downloading speed of the second SIM card is improved, and meanwhile, the call quality of the call card can be ensured.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method based on a dual-card terminal and a dual-card terminal. Background Art

[0002] A dual-card terminal usually includes a main card and a secondary card, which can process services in parallel. Usually, multiple RF antennas are set in a dual-card terminal. Usually, a dual-card terminal will use a frequency band combination with antenna decoupling. For example, in the n78 frequency band, the main card uses antenna 1 and antenna 2 to receive signals, and the secondary card uses antenna 3 and antenna 4 to receive signals.

[0003] However, when the primary card is in a call state, the data download speed of the secondary card will be seriously affected. For example, at T1, the secondary card is in the state of downloading traffic and the primary card is in an idle state. At this time, the download speed of the secondary card is XMbps; at T1+45s, the primary card is connected to the call and switches from the idle state to the call state, and the download speed of the secondary card is reduced to 1 / 4XMbps. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a communication method based on a dual-card terminal, so that when the first SIM card in the dual-card terminal is in a call state and the second SIM card is in a data processing service state, the second SIM card can transmit radio frequency signals in turn through multiple antennas, thereby increasing the speed at which the second SIM card downloads data, and at the same time ensuring that the path for the call card to receive the radio frequency signal will not be interrupted, thereby ensuring the call quality.

[0005] In a first aspect, the present application provides a communication method based on a dual-card terminal, which is applied to the dual-card terminal, the dual-card terminal includes M antennas, M is an even number greater than 2, and the method includes: when it is detected that a first subscriber identification module SIM card is in a call service state and a second SIM card is in a data processing service state, the second SIM card uses N antennas to send radio frequency signals in turn and uses N antennas to receive radio frequency signals, the N antennas are at least the first antenna and the second antenna in the M antennas, and the first antenna is bound to a transmitting unit and a first main set receiving unit of the second SIM card, and the second antenna is bound to a first diversity receiving unit of the second SIM card; the first SIM card uses the first antenna to send radio frequency signals and uses MN antennas to receive radio frequency signals, the MN antennas are antennas in the M antennas other than those used by the second SIM card, and the MN antennas are bound to a second main diversity receiving unit of the first SIM card, and the second main diversity receiving unit includes a second main set receiving unit and a second diversity receiving unit.

[0006] In this way, the first SIM card is a call card, and the second SIM card is a data card. Since the first antenna is bound to the transmitting unit and the first main set receiving unit of the dual-card terminal, and the first main set receiving unit is bound to the first antenna, and the first diversity receiving unit is bound to the second antenna, the signal paths for sending and receiving of the second SIM card are the same. Even if the second SIM card receives and sends in a time division multiplexing manner, the second SIM card will not be affected in sending signals while receiving signals. The data card (i.e., the second SIM card) can send radio frequency signals in turn in the two antennas, so that the data card has 1T2R antenna switching capability. The data card can send SRS in turn on the two antennas, so that the number of streams allocated by the base station to the first SIM card increases, thereby improving the data download rate of the first SIM card. In addition, the third antenna and the fourth antenna correspond to the second main diversity receiving unit, and the first SIM card uses the first antenna to send radio frequency signals, so that the reception and transmission of the first SIM card are separated and the second SIM card is allocated a transmitting unit and a second main diversity receiving unit, so that the second SIM card sending radio frequency signals or receiving radio frequency signals will not affect the first SIM card receiving signals, that is, the call quality of the second SIM card is ensured.

[0007] According to the first aspect, before the second SIM card uses N antennas to send radio frequency signals in turn and uses N antennas to receive radio frequency signals, the method also includes: obtaining a first frequency band combination consisting of a working frequency band for a call service and a working frequency band for data processing; detecting whether the priority identifier corresponding to the first frequency band combination in a preset configuration file is the first identifier; if it is detected that the priority identifier corresponding to the first frequency band combination is the first identifier, determining to allocate a signal path for the second SIM card according to a first allocation strategy, the first allocation strategy indicating that the second SIM card needs to use N antennas to send radio frequency signals in turn and needs to use N antennas to receive radio frequency signals.

[0008] In this way, in the preset configuration file, when the priority identifier corresponding to the combination of the working frequency band of the first SIM card and the working frequency band of the second SIM card is the first identifier, the second SIM card has the 1T2R capability, and the first SIM card has the 1T1R capability; and for other frequency band combinations, other signal path allocation strategies can be adopted, thereby improving the flexibility of the signal path used by the second SIM card.

[0009] According to the first aspect, the M antennas include a main diversity antenna, and the main diversity antenna includes a main diversity antenna and a diversity antenna. In this way, the terminal adopts the main diversity reception mode to improve the efficiency of signal reception.

[0010] According to the first aspect, when M is 4 and N is 2; the second SIM card uses N antennas to send radio frequency signals in turn and uses N antennas to receive radio frequency signals, including: the second SIM card transmits radio frequency signals through the first path and the second path in turn, wherein the transmitting unit is connected to the first input end of the first antenna switching switch, and the first output end of the first antenna switching switch is connected to the main antenna to form a first path; the transmitting unit is connected to the first input end of the first antenna switching switch, and the second output end of the first antenna switching switch is connected to the second antenna to form a second path; the second SIM card receives the radio frequency signal transmitted by the third path through the first main receiving unit and receives the radio frequency signal transmitted by the fourth path through the first diversity receiving unit, wherein the first input end of the first antenna switching switch is connected to the first antenna through the first output end of the first antenna switching switch to form a third path; the second input end of the first antenna switching switch is connected to the second antenna through the second output end of the first antenna switching switch to form a fourth path.

[0011] In this way, the terminal sets an antenna switch to switch the antenna of the receiving port or the transmitting port. The number of antenna switches may be one or two. In this example, two antenna switches are used as an example. The second SIM card transmits radio frequency signals alternately through the first path and the second path, and the second SIM card receives radio frequency signals through the third path and the fourth path, so that the second SIM card has 1T2R capability, and the second SIM card transmitting signals will not cause the second SIM card to receive signals.

[0012] According to the first aspect, MN antennas include a third antenna and a fourth antenna; the first SIM card uses the first antenna to send a radio frequency signal and uses MN antennas to receive a radio frequency signal, including: the first SIM card transmits a radio frequency signal through a first path; the first SIM card receives a radio frequency signal transmitted through a fifth path through a second main set receiving unit, and receives a radio frequency signal transmitted through a sixth path through a second diversity receiving unit, the first input end of the second antenna switching switch is connected to the third antenna through the first output end of the second antenna switching switch to form a fifth path; the second input end of the second antenna switching switch is connected to the fourth antenna through the second output end of the second antenna switching switch to form a sixth path, wherein the third output end of the first antenna switching switch is connected to the third input end of the second antenna switching switch.

[0013] According to the first aspect, when M is 4, the method further includes: when the first SIM card is in the first service and the second SIM card is in the second service, obtaining a second frequency band combination consisting of the working frequency band of the first service and the working frequency band of the second service; detecting whether the priority identifier corresponding to the second frequency band combination in the configuration file is the first identifier; if it is detected that the priority identifier of the second frequency band combination is the second identifier, determining to allocate signal paths for the first SIM card and the second SIM card according to the second allocation strategy, the second allocation strategy is used to indicate that the first SIM card has the ability to transmit signals in two signal paths in turn. In this way, when the first SIM card and the second SIM are both processing services, the combination of the working frequency bands of the terminal (i.e., the second frequency band combination) is obtained, and the priority identifier of the second frequency band combination is searched in the configuration file. The corresponding signal paths can be allocated to the first SIM card and the second SIM card according to the priority identifier, thereby improving the flexibility of the signal paths used by the first SIM card and the second SIM card.

[0014] According to the first aspect, the second allocation strategy instructs the first SIM card to transmit radio frequency signals through the first path and the second path alternately, and to receive radio frequency signals through the third path and the fourth path; the second allocation strategy instructs the second SIM card to send radio frequency signals through the seventh path and the eighth path alternately, and to receive signals through the fifth path and the sixth path; wherein the transmitting unit is connected to the first input end of the first antenna switching switch, the third output end of the first antenna switching switch is connected to the third input end of the second antenna switching switch, and the first output end of the second antenna switching switch is connected to the third antenna, forming the seventh path; the transmitting unit is connected to the first input end of the first antenna switching switch, the third output end of the first antenna switching switch is connected to the third input end of the second antenna switching switch, and the second output end of the second antenna switching switch is connected to the fourth antenna, forming the eighth path.

[0015] In this way, the first SIM card can transmit radio frequency signals through the first path and the second path alternately, so that the first SIM card has 1T2R capability, and the second SIM card can transmit radio frequency signals through the seventh path and the eighth path alternately, also having 1T2R capability; the second SIM card can increase the speed of data downloading.

[0016] According to the first aspect, the method includes: the second allocation strategy indicates that the first SIM card needs to transmit radio frequency signals through the first path and the second path in turn, and receive radio frequency signals through the third path and the fourth path; the second allocation strategy indicates that the second SIM card needs to transmit radio frequency signals through the first path, and receive radio frequency signals through the fifth path and the sixth path. In this way, the first SIM card has the capability of 1T2R, and the second SIM card has the capability of 1T1R, and this method can ensure the call quality of the call card.

[0017] According to the first aspect, the method further includes: when it is detected that the first SIM card is in an idle state and the second SIM card is in a data processing service state, the second SIM card uses M antennas to send radio frequency signals in turn, and uses N antennas to receive radio frequency signals. In this way, when the first SIM card is in an idle state, the second SIM card can use M antennas in turn to improve the data download speed.

[0018] In a second aspect, the present application provides a dual-card terminal, comprising: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, and when the computer programs are executed by the one or more processors, the dual-card terminal executes the first aspect and a communication method based on a dual-card terminal corresponding to any one of the implementation methods of the first aspect.

[0019] The second aspect and any implementation of the second aspect correspond to the first aspect and any implementation of the first aspect respectively. The technical effects corresponding to the second aspect and any implementation of the second aspect can refer to the technical effects corresponding to the above-mentioned first aspect and any implementation of the first aspect, which will not be repeated here.

[0020] In a third aspect, the present application provides a computer-readable medium for storing a computer program. When the computer program runs on a dual-card terminal, the dual-card terminal executes the communication method based on the dual-card terminal corresponding to the above-mentioned first aspect and any one of the implementation methods of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 is a schematic diagram showing an exemplary usage scenario of a dual-card terminal;

[0023] Figure 2 is a schematic diagram showing an exemplary signal path allocated to a call card and a data card in a dual-card terminal;

[0024] Figure 3 is a schematic diagram showing an exemplary signal path allocated to a call card and a data card in a dual-card terminal;

[0025] Figure 4 is a schematic diagram of the structure of an electronic device shown exemplarily;

[0026] Figure 5 is a flow chart showing an exemplary communication method based on a dual-card terminal;

[0027] Figure 6 is a schematic diagram showing an exemplary signal path allocated to a call card and a data card in a dual-card terminal;

[0028] Figure 7 is a schematic diagram of an exemplary configuration file;

[0029] Figure 8 The figure is a schematic diagram showing an exemplary scenario of a data card downloading data. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0032] The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0033] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0034] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0035] Before describing the technical solution of the embodiments of the present application, the application scenarios of the embodiments of the present application are first described with reference to the accompanying drawings. Figure 1 The figure is a schematic diagram showing an exemplary usage scenario of a dual-card terminal. Figure 1 The terminal shown is a dual-card terminal, in which two subscriber identification modules (subscribe ridentity module, "SIM") cards are installed, one of which can be used as a non-dedicated data subscription (None-Dedicated data subscription, "NonDDS", the default is a call card), and the other card can be used as a dedicated data subscription (Dedicated data subscription, "DDS", the default is a data card). The call card and the data card can process services in parallel. The call card and the data card in the dual-card terminal can be specified by the user. The secondary card processes data download services, such as Figure 1 As shown in 1a of FIG. 1 , the service download interface 101 displays the file download speed and the completion degree of the file download. The terminal downloads the file named "QHZ" at a speed of 1.2MB / s. At time T1, the primary card receives the call request, and the user connects the call. Figure 1 The call interface shown in 1b in the figure. At this time, the speed of downloading files by the secondary card drops sharply, such as Figure 1 As shown in 1c, the download speed displayed in the download interface 104 changes from 1.2MB / s to 307KB / s, that is, the download speed is 1 / 4 of the original download speed; the speed at which the terminal downloads files is severely reduced, affecting the user's use.

[0036] For ease of understanding, in this example, the parts involved in this application are first introduced for illustration.

[0037] (1) Primary diversity antenna: A primary antenna and a diversity antenna are included in a group. The primary antenna is responsible for sending and receiving radio frequency signals, while the diversity antenna is only responsible for receiving signals but not sending them. A group of primary diversity antennas can be set in the terminal. Of course, in order to improve the transmission and reception performance, another group or more groups of primary diversity antennas can be set, which can be called multiple-input multiple-output (MIMO) primary diversity antennas.

[0038] (2) Dual-card terminal: A dual-card terminal is installed with two subscriber identification module (subscribe ridentity module, "SIM") cards. One SIM card can be used as the primary card and the other SIM card can be used as the secondary card. The primary card and the secondary card can process services in parallel. The primary card of the dual-card terminal is provided with a primary receive unit (primary receive, "PRX") corresponding to the primary antenna and a diversity receive unit (diversity receive, "DRX") corresponding to the diversity antenna. The dual-card terminal is also provided with a transmitting unit (Transmit, "TX"). In this example, the primary card and the secondary card use the same transmitting unit TX, such as Figure 2 As shown in , the TX of the main card and the TX of the secondary card in the following text refer to the same transmitting unit.

[0039] The secondary card of the dual-card terminal is provided with a main receiving unit corresponding to the main antenna, and a diversity receiving unit (diversity receive, "DRX") corresponding to the diversity antenna.

[0040] (3) Firmware: The dual-card terminal is provided with firmware, which is not shown in the figure. The firmware can control the switching of the connection between the main receiving unit, the transmitting unit and the diversity receiving unit and the antenna by controlling the antenna switching switch, that is, the firmware can allocate radio frequency paths for the first SIM card and the second SIM card. The terminal can use one antenna switching switch (such as a 4P4T switch) or two cascaded antenna switching switches. Currently, two cascaded antenna switching switches are usually used, such as Figure 2 As shown, the J port of the first antenna switch is connected to the I port of the second antenna switch. In this example, the dual-card terminal can switch the working state of the first antenna group through the first antenna switch and switch the working state of the second antenna group through the second antenna switch.

[0041] like Figure 2 As shown, the dual-card terminal includes a first antenna (such as Figure 2 ANT0), the second antenna (such as Figure 2 ANT2 as shown), the third antenna (as Figure 2 ANT1) and the fourth antenna (as shown Figure 2 ANT3). The firmware allocates a main antenna bound to the TX of the main card to the main card. For example, in the default state (i.e. before the firmware controls the antenna switching), the first antenna can be the main antenna and the second antenna can be the diversity antenna. After the terminal switches the antenna, the second antenna can be used as the main antenna and the first antenna can be used as the diversity antenna. Figure 2 The calling card is the primary card and the data card is the secondary card.

[0042] In this example, the main card is a call card and the secondary card is a data card. When the data card is in an idle state, the main card can have two sets of main diversity antennas. When the TX of the main card is connected to the antenna ANT1, the TX of the main card can transmit RF signals through the antenna ANT1. When the TX of the main card is connected to the antenna ANT3, the TX of the main card can transmit RF signals through the antenna ANT3.

[0043] Figure 2 The figure is a schematic diagram showing an exemplary signal transceiver path allocated to a call card and a data card.

[0044] In this example, the data card and the call card can use the same transmission path TX Path, which includes: a first path and a second path. In this example, the TX of the call card is connected to the A port. Optionally, the transmission unit TX of the call card is connected to the antenna ANT0 through the A port and the C port of the first antenna switching switch to form a first path; the transmission unit TX of the call card can also be connected to the antenna ANT2 through the A port and the D port of the first antenna switching switch to form a second path.

[0045] When the radio frequency channel TX Path between the TX of the calling card and the main antenna is connected, the transmitting unit TX can transmit the signal through the first antenna or the second antenna.

[0046] The receiving channel of the calling card (such as Figure 2 The RX Path of the calling card shown in the figure includes: a third path and a fourth path. The PRX in the dual-card terminal is connected to the antenna ANT0 through the A port and the C port of the first antenna switch to form a third path, that is, the third path is the main collection path; the DRX of the calling card can be connected to the antenna ANT2 through the B port and the D port of the first antenna switch to form a fourth path, that is, the fourth path is a diversity reception path. It should be noted that Figure 2 The path between the DRX of the calling card and the second antenna is not shown.

[0047] When the third path between the PRX of the calling card and the first antenna is connected, the PRX can receive the signal received by the first antenna; when the fourth path between the DRX of the calling card and the second antenna is connected, the DRX of the calling card can receive the signal received by the second antenna.

[0048] Data card receiving path (such as Figure 2 The RX Path of the data card shown in the figure includes: a fifth path and a sixth path. The PRX in the data card is connected to the antenna ANT1 through the E port and the G port of the second antenna switch to form the fifth path; the DRX of the data card can be connected to the antenna ANT3 through the F port and the H port of the second antenna switch to form the sixth path.

[0049] When the fifth path between the PRX of the data card and the third antenna is connected, the PRX can receive the signal received by the third antenna; when the sixth path between the DRX of the data card and the fourth antenna is connected, the DRX can receive the signal received by the fourth antenna.

[0050] Optionally, since the first antenna switching switch and the second antenna switching switch are cascaded, the transmitting unit TX can be connected to the antenna ANT1 through the A port, the J port, the I port and the G port to form a seventh channel; that is, the transmitting unit can transmit signals through ANT1 and ANT3.

[0051] It should be noted that when the RF path between the PRX and the main antenna is disconnected, the PRX cannot receive the signal received by the main antenna. Similarly, the signal transmission between the DRX and the diversity antenna, between the PRX MIMO and the MIMO main antenna, and between the DRX MIMO and the MIMO diversity antenna is similar to the signal transmission between the PRX and the main antenna, and will not be repeated here.

[0052] In this example, the dual-card terminal supports 1 RF channel to transmit RF signals. Assume that the calling card is in the calling service, the working frequency band of the calling service is N78, and the data card is in the file download service and the working frequency band of the file download service is N78. When the calling card is in the calling state, the transmitting unit TX of the calling card can send RF signals on the first channel and the second channel in turn, that is, the calling card has the antenna switching capability of 1T2R. In addition, since the calling card has the antenna switching capability of 1T2R, the TX of the calling card can send channel sounding reference signals (Sounding Reference Signal, "SRS") on the first antenna (ie, ANT0) and the second antenna (ie, ANT2) in turn. The base station can estimate the channel according to the SRS and allocate resources for the current dual-card terminal. For example, the calling card has the capability of 1T2R, and the base station has the ability to allocate 2 streams to the calling card, wherein the more streams the base station allocates to the terminal, the faster the terminal downlink rate.

[0053] The PRX of the calling card receives the radio frequency signal through the first path, and the DRX of the calling card receives the radio frequency signal through the second path.

[0054] In this example, the RF path for sending and the RF path for receiving of the data card are independent and separated from each other, so that when the main card (i.e., the call card) and the secondary card (i.e., the data card) reside in the dual-card terminal at the same time, the antennas can be decoupled to reduce the interference caused by the main and secondary cards when receiving signals. When the call card is in the call service, the call card receives the RF signal transmitted by the first path through PRX, and the call card receives the RF signal transmitted by the second path through DRX; if the data card sends a signal on the second path through TX, since the base stations where the data card and the call card reside may be different, the time of the data card and the call card cannot be aligned (synchronized), resulting in a conflict between the signal transmission of the data card and the signal reception of the call card, which will interrupt the RF path for the call card to receive the signal, that is, the first path and the second path for the call card to receive the RF signal will be interrupted, resulting in the call card failing to receive the RF signal. Similarly, if the firmware controls the first antenna switching switch and the second antenna switching switch to connect TX to the third antenna or the fourth antenna, the data card transmits the RF signal through TX, the third antenna, or transmits the RF signal through TX and the fourth antenna, and the first path and the second path for the call card to receive the RF signal will also be interrupted. When the call card is in call service, the data card cannot send signals through the second channel, that is, the data card cannot switch antennas when sending RF signals, and does not have the 1T2R antenna switching capability. Since the data does not have the 1T2R antenna switching capability, it cannot send SRS on the first antenna and the second antenna in turn. In other words, the data card has the 1T1R capability at this time, that is, it can only send SRS on the first antenna. Since the base station only receives the SRS sent by one antenna, it can only evaluate the capability of the channel. The base station can allocate a stream number to the data card, resulting in a significant reduction in the download rate of the data card.

[0055] like Figure 1 In the scenario shown in 1a, such as at T1, the call card is in an idle state, and the data card can have 1T4R capability, that is, the TX of the data card can send SRS on the first antenna, the second antenna, the third antenna, and the fourth antenna in turn. The base station allocates 4 streams to the dual-card terminal based on the received SRS. If the download rate of the data card at this time is XMbps, it should be noted that the application does not show the RF path allocated by the terminal to the data card when the call card is in an idle state and the data card belongs to the data service state. At T1+30s, the call card changes to the call state, and the path for the call card to send and receive signals is as follows: Figure 2 As shown in the figure, the TX of the data card can only transmit RF signals through the first antenna, causing the number of streams allocated by the base station to the data card to drop to 1, that is, the download rate of the data card at this time becomes 1 / 4Mbps. It can be seen that in this scenario, the download speed of the data card has dropped significantly, affecting the user's use.

[0056] Figure 3The figure is a schematic diagram showing another exemplary signal receiving and sending path allocated to a call card and a data card.

[0057] like Figure 3 As shown, the dual-card terminal includes a first antenna (such as Figure 3 ANT0), the second antenna (such as Figure 3 ANT2 as shown), the third antenna (as Figure 3 ANT1) and the fourth antenna (as shown Figure 3 ANT3).

[0058] The first antenna and the second antenna form a first group of antennas, and the third antenna and the fourth antenna form a second group of antennas. In this example, the dual-card terminal can switch the working state of the first group of antennas through the first antenna switching switch, and switch the working state of the second group of antennas through the second antenna switching switch. The first antenna switching switch and the second antenna switching switch are cascaded.

[0059] In this example, the dual-card terminal supports 1 RF channel to transmit RF signals, and the call card uses the RF path TXPath, which includes: a first path and a second path. Optionally, the transmitting unit TX of the call card is connected to the antenna ANT0 through the A port and the C port of the first antenna switching switch 301 to form a first path; the transmitting unit TX of the call card can also be connected to the antenna ANT2 through the A port and the D port of the first antenna switching switch 301 to form a second path.

[0060] The receiving channel of the calling card (such as Figure 3 The RX Path of the calling card shown in the figure includes: a third path and a fourth path. The PRX of the calling card is connected to the antenna ANT0 through the A port and the C port of the first antenna switching switch 301 to form a third path; the DRX of the calling card can be connected to the antenna ANT2 through the B port and the D port of the first antenna switching switch 301 to form a fourth path.

[0061] Data card receiving path (such as Figure 3 The RX Path of the data card shown in the figure includes: a fifth path and a sixth path. The PRX of the data card is connected to the antenna ANT1 through the E port and the G port of the second antenna switch 302 to form the fifth path; the DRX of the data card can be connected to the antenna ANT3 through the F port and the H port of the second antenna switch 302 to form the sixth path.

[0062] Data card transmission path (such as Figure 3The RX Path of the data card shown in the figure includes: the seventh path and the eighth path. The TX of the data card is connected to the antenna ANT1 through the A port and the J port of the first antenna switching switch 301, the I port and the G port of the second antenna switching switch 302, forming the seventh path; the TX of the data card can be connected to the antenna ANT3 through the A port and the J port of the first antenna switching switch 301, the I port and the H port of the second antenna switching switch 302, forming the eighth path.

[0063] Assume that the calling card is in the calling service, and the working frequency band of the calling service is N78, and the data card is in the file downloading service and the working frequency band of the file downloading service is N78. When the calling card is in the calling state, the calling card can transmit the radio frequency signal on the first channel and the second channel alternately through TX, that is, the calling card has the ability of 1T2R antenna switching. In addition, because the calling card has the ability of 1T2R antenna switching, the calling card can send the channel sounding reference signal (Sounding Reference Signal, "SRS") on the first antenna (ie, ANT0) and the second antenna (ie, ANT2) alternately through TX. The base station can estimate the channel according to the SRS and allocate resources for the current calling card. For example, in this example, the base station determines to allocate 2 streams to the calling card.

[0064] It should be noted that when the TX of the calling card transmits a signal on the second path, the main antenna corresponding to the PRX of the calling card is ANT2, and the diversity antenna corresponding to the DRX of the calling card is ANT0.

[0065] When the data card is in data download service, the firmware will look for optional sending paths for different SIM cards in the communication request (Request for communication, "RFC");

[0066] When the data card processes data services, the data card can transmit radio frequency signals on the fifth and sixth channels in turn through TX, that is, the data card has the ability to switch antennas with 1T2R. In addition, since the data card has the ability to switch antennas with 1T2R, the data card can send channel sounding reference signals (Sounding Reference Signal, "SRS") on the third antenna (ie, ANT1) and the fourth antenna (ie, ANT3) in turn through TX. The base station can estimate the channel based on the SRS and allocate resources to the current data card. For example, in this example, the base station can allocate 2 streams to the data card.

[0067] When the data card is processing data services and the call card is in a call state, if the time when the data card and the call card reside in the base station is not aligned, the signal path of the data card sending signals (i.e., the seventh path and the eighth path) will interrupt the signal path of the call card receiving signals (i.e., the third path and the fourth path).

[0068] That is to say, Figure 3 Although the method above can improve the download speed of the data card, it will affect the call quality of the call card.

[0069] An embodiment of the present application provides a communication method based on a dual-card terminal, the method is applied to the dual-card terminal, the dual-card terminal includes M antennas, M can be 4, 6, 8, etc., when the first SIM card is in a call service and the second SIM card is in a data download service scenario, the data card can use N antennas to transmit radio frequency signals (such as SRS or data service signals) in turn and use N antennas to receive radio frequency signals, the N antennas are at least the first antenna and the second antenna among the M antennas, and the first antenna is bound to the transmitting unit of the dual-card terminal and the first main set receiving unit of the second SIM card, and the second antenna is bound to the first diversity receiving unit of the second SIM card.

[0070] The call card can send radio frequency signals through the first antenna and receive radio frequency signals through at least one other antenna. The other antenna refers to the antenna other than the antenna used by the data card in the dual-card terminal, and the other antenna is bound to the second main diversity receiving unit of the first SIM card. In this example, since the data card can send radio frequency signals in turn in at least two antennas, the data card has 1T2R antenna switching capability. The transmission path and the receiving path of the second SIM card are the same, which ensures that the second SIM card will not interrupt the reception of the second SIM card during the signal transmission process, and increases the number of streams allocated by the base station to the second SIM card, thereby improving the download rate of the second SIM card. The signal path for sending radio frequency signals by the call card is the same as the signal path for transmitting signals by the second SIM card. The receiving signal path of the call card is separated from the transmitting signal path, and the second main diversity receiving unit is corresponding to the first SIM card, so that the signal transmission of the second SIM card will not affect the reception of the first SIM card, ensuring the call quality of the first SIM card.

[0071] Figure 4 This is a schematic diagram of the structure of an electronic device 100 shown in an embodiment of the present application. It should be understood that: Figure 4 The electronic device 100 shown is only one example of an electronic device, and the electronic device 100 may have more or fewer components than shown in the drawings, may combine two or more components, or may have a different configuration of components. Figure 4The various components shown in the EMBODIMENTS 2000 may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application specific integrated circuits.

[0072] The electronic device 100 may include: a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc.

[0073] Figure 5 : is a flow chart of a communication method based on a dual-card terminal according to an embodiment of the present application. The method is executed by a dual-card terminal, and the specific process includes:

[0074] Step 501: When the firmware of the dual-card terminal detects that the first subscriber identity module SIM card is in a call service state and the second SIM card is in a data processing service state, the second SIM card uses N antennas to send radio frequency signals in turn and uses N antennas to receive radio frequency signals.

[0075] In this example, the terminal may include a device that provides voice and / or data connectivity to the user, specifically, a device that provides voice to the user, or a device that provides data connectivity to the user, or a device that provides voice and data connectivity to the user. For example, a handheld device with a wireless connection function or a processing device connected to a wireless modem may be included. The terminal device may communicate with a core network device via a radio access network (RAN) device, exchange voice or data with the RAN, or interact voice and data with the RAN. The dual-card terminal may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, vehicle to everything (V2X) terminal equipment, etc. In this example, the dual-card terminal takes a mobile phone as an example, and M antennas are arranged in the dual-card terminal, and M may be 4, 6, 8, etc. In this example, M is illustrated by taking 4 as an example.

[0076] In some embodiments, a configuration file may be pre-set in the terminal, and the configuration file may include signal paths allocated to the first SIM card and the second SIM card under different frequency bands. The firmware may detect whether the priority identifier of the first frequency band is a first identifier (such as "Y") based on the first frequency band combination of the working frequency band of the first SIM card and the working frequency band of the second SIM card. If the first identifier is detected, the first allocation strategy is adopted. The first allocation strategy is used to indicate that the second SIM card has the 1T2R capability first.

[0077] Figure 7 The figure is a schematic diagram of a configuration file containing identification information for example.

[0078] like Figure 7 As shown, different radio frequency paths are configured for different frequency band combinations in the configuration file, and a priority identifier is set for each frequency band combination. The configuration information may include the priority identifier of the frequency band combination, and the configuration information may also include the identifier of the SIM card, the path identifier assigned to each SIM card (i.e., the identifier of the radio frequency path), the identifier of the antenna, and other information. Figure 7 Not all information in the configuration file is shown. Figure 7 In the SIM card identifier, "0" is used to indicate a calling card, and "1" is used to indicate a data card. The firmware finds that the identification information of the frequency band combination is Y. Y indicates that when the current RF path is allocated, the data card has priority to obtain the 1T2R capability, that is, the first allocation strategy is adopted. At the same time, since the path identifiers of the data card and the calling card have been set in the configuration information, the corresponding RF path can be directly allocated to the data card according to the path identifier, without randomly looking for the optional RF paths for different SIM cards in the RFC.

[0079] If the firmware finds that the identification information of the frequency band combination is "N", it indicates that the current frequency band combination gives priority to the calling card, that is, the calling card has priority to obtain the 1T2R capability, and the second allocation strategy can be used. The second classification strategy can indicate that the data card and the calling card are allocated as follows: Figure 2 The radio frequency paths shown, i.e., the transmitting paths of the calling card are the first path and the second path, the receiving paths of the calling card are the third path and the fourth path, the transmitting path of the data card is the first path, and the receiving paths of the data card are the fifth path and the sixth path.

[0080] Optionally, the second allocation strategy may also instruct the first SIM card to transmit radio frequency signals through the first path and the second path in turn, and to receive radio frequency signals through the third path and the fourth path. The second SIM card transmits radio frequency signals through the fifth path and the sixth path in turn, and to receive signals through the seventh path and the eighth path. The specific description of the signal path can be referred to Figure 3 The description of the signal pathway shown in will not be repeated here.

[0081] The firmware allocates signal paths for the first SIM card and the second SIM card according to the first allocation strategy. The second SIM card transmits and receives radio frequency signals according to the allocated signal paths. The content of the first allocation strategy will be combined with Figure 6 Provide specific instructions.

[0082] Step 502: The first SIM card uses the first antenna to send radio frequency signals and uses MN antennas to receive radio frequency signals. The MN antennas are antennas other than those used by the second SIM card among the M antennas, and the MN antennas correspond to two diversity receiving units of the dual-card terminal.

[0083] Exemplarily, the first SIM card transmits and receives radio frequency signals according to the assigned signal path.

[0084] Combine the following Figure 6 The signal paths used by the first SIM card and the second SIM card are described in detail.

[0085] Figure 6 The figure is a schematic diagram showing exemplarily a radio frequency path of a first SIM card and a radio frequency path of a second SIM card.

[0086] In this example, the firmware in the dual-card terminal allocates radio frequency paths to the first SIM card and the second SIM card. In some embodiments, in this example, M is 4 and N is 2 as an example.

[0087] like Figure 6 As shown, the dual-card terminal includes a first antenna (such as Figure 6 ANT0), the second antenna (such as Figure 6 ANT2 as shown), the third antenna (as Figure 6 ANT1) and the fourth antenna (as shown Figure 6 ANT3).

[0088] In this example, the first antenna and the second antenna are the first group of antennas, and the third antenna and the fourth antenna form the second group of antennas. In this example, the dual-card terminal can switch the working state of the first group of antennas through the first antenna switching switch, and switch the working state of the second group of antennas through the second antenna switching switch. The first antenna switching switch and the second antenna switching switch are cascaded. The dual-card terminal is provided with a main set receiving unit (PRX) corresponding to the main set antenna and a diversity receiving unit (DRX) corresponding to the diversity antenna. The dual-card terminal is also provided with a transmitting unit (TX).

[0089] The dual-card terminal supports one signal path to transmit signals. The TX of the call card and the TX of the data card are both connected to the first input terminal of the antenna switch. The TX of the data card is connected to the A port of the first antenna switch, and the main set receiving unit of the data card (i.e., the first main set receiving unit) is also connected to the A port of the first antenna switch 601. The diversity receiving unit of the data card (i.e., the first diversity receiving unit) is connected to the B port of the first antenna switch 601, and the first output terminal (i.e., Figure 6 The C port in the figure) is connected to the first antenna, and the second output port (such as Figure 6 The D port in the figure is connected to the second antenna.

[0090] In this example, the data card and the call card can use the radio frequency path TX Path together, and the TX Path includes: a first path and a second path. Optionally, the transmitting unit TX of the data card is connected to the antenna ANT0 through the A port and the C port of the first antenna switching switch 601 to form a first path; the transmitting unit TX of the data card can also be connected to the antenna ANT2 through the A port and the D port of the first antenna switching switch 601 to form a second path.

[0091] Data card receiving path (such as Figure 6 The RX Path of the call card shown in the figure includes: a third path and a fourth path. The PRX (i.e., the first main set receiving unit) of the data card is connected to the antenna ANT0 through the A port and the C port of the first antenna switching switch 601 to form a third path; the DRX (i.e., the first diversity receiving unit) of the data card can be connected to the antenna ANT2 through the B port and the D port of the first antenna switching switch 601 to form a fourth path.

[0092] The receiving channel of the calling card (such as Figure 6The RX Path of the data card shown in the figure includes: the fifth path and the sixth path. The PRX (i.e., the second main receiving unit) of the call card is connected to the antenna ANT1 through the E port and the G port of the second antenna switch 602 to form the fifth path; the DRX (i.e., the second diversity receiving unit) of the call card can be connected to the antenna ANT3 through the F port and the H port of the second antenna switch 602 to form the sixth path.

[0093] In this example, the engineer can pre-set a configuration file (ie, a radio frequency configuration report) to pre-set the radio frequency path used by the data card and the radio frequency path used by the call card.

[0094] For example, assume that the call card is in a call service, and the working frequency band of the call service is N78, and the data card is in a file download service and the working frequency band of the file download service is N78. When the call card is in a call state, the data card can send radio frequency signals on the first channel and the second channel alternately through the transmitting unit TX, that is, the data card has the ability of 1T2R antenna switching. In addition, since the data card has the ability of 1T2R antenna switching, the data card can send a channel sounding reference signal (Sounding Reference Signal, "SRS") on the first antenna (ie, ANT0) and the second antenna (ie, ANT2) alternately through TX, and the base station can estimate the channel according to the SRS, and can allocate resources for the current data card. For example, in this example, the base station has the ability to allocate 2 streams to the data card, and allocates 2 streams to the data card.

[0095] The data card receives a radio frequency signal transmitted via a first path through a PRX (ie, a first primary receiving unit), and receives a radio frequency signal transmitted via a second path through a DRX (ie, a first diversity receiving unit).

[0096] Since the data card can use time-division multiplexing to simultaneously send and receive signals on the same RF path, even if the data card sends a signal on the second path through TX, it will not interrupt the PRX of the data card from receiving the RF signal received on the first path, nor will it interrupt the DRX of the data card from receiving the RF signal received on the second path.

[0097] When the calling card is in the calling service, the calling card can only transmit the radio frequency signal in the first channel through TX, and will not interrupt the first channel and the second channel of the data card receiving signal, ensuring that the radio frequency channel of the data card receiving signal will not be broken. Therefore, the first allocation strategy indicates that the calling card uses only the first channel for the transmission channel, and the calling card cannot use TX to send signals in turn on the first antenna and the second antenna. Since the TX of the calling card cannot switch the transmitting antenna, the antenna corresponding to the diversity receiving unit (i.e., the second diversity receiving unit) of the calling card cannot be switched, that is, the main antenna corresponding to the PRX (i.e., the second main receiving unit) of the calling card is ANT1, and the diversity antenna corresponding to the DRX (i.e., the second diversity receiving unit) of the calling card is ANT3. If the calling card sends a signal in the second channel through TX, since the base stations where the data card and the calling card reside may be different, the time of the data card and the calling card cannot be aligned, resulting in a conflict between the signal transmission of the calling card and the signal reception of the data card, interrupting the radio frequency channel of the data card receiving signal, that is, interrupting the first channel and the second channel, resulting in the failure of the data card to receive the radio frequency signal. Similarly, when the call card sends a signal on the third antenna or the fourth antenna via TX, the first path and the second path for the data card to receive the RF signal will also be interrupted.

[0098] That is to say, when the data card is in the data download service and the call card is in the call service, the call card cannot switch antennas when sending and does not have the 1T2R antenna switching capability. Since the call card does not have the 1T2R antenna switching capability, it cannot send SRS on the first antenna and the second antenna in turn. The call card has the 1T1R capability at this time, that is, it can only send SRS on the first antenna. Since the base station only receives the SRS sent by one antenna, it can only evaluate the channel capacity and allocate a stream number to the call card. The call card's SRS transmission in turn has little benefit on the call quality, that is, it does not reduce the benefit of the call card.

[0099] In this example, although the calling card has lost the 1T2R capability and the antenna switching capability, under the specified frequency band combination, the calling card's ability to switch antennas to obtain calling revenue is not obvious, and the SRS round-robin transmission has no effective benefit for the calling service; the use of the first allocation strategy effectively increases the download rate of the data card without reducing the revenue of the calling card and has no impact on the calling service.

[0100] This application is relative to Figure 2 For the scheme of allocating radio frequency channels for data cards and call cards, the download speed of the data card in this application is doubled, while also ensuring that the call of the call card is not affected. Figure 8 As shown, the download speed displayed in the download interface 801 is 614KB / s, that is, the download speed is relatively Figure 1 The speed of 1c has doubled.

[0101] It is understandable that, in order to realize the above functions, the electronic device includes hardware and / or software modules corresponding to the execution of each function. In combination with the algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application in combination with the embodiments, but such implementation should not be considered to be beyond the scope of the present application.

[0102] This embodiment also provides a computer storage medium, in which computer instructions are stored. When the computer instructions are executed on an electronic device, the electronic device executes the above-mentioned related method steps to implement the communication method based on the dual-card terminal in the above-mentioned embodiment. The storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0103] This embodiment further provides a computer program product. When the computer program product is run on a computer, the computer is enabled to execute the above-mentioned related steps to implement the communication method based on the dual-card terminal in the above-mentioned embodiment.

[0104] Among them, the electronic device, computer storage medium, computer program product or chip provided in this embodiment is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above and will not be repeated here.

[0105] Any content of each embodiment of the present application, as well as any content of the same embodiment, can be freely combined. Any combination of the above content is within the scope of the present application.

[0106] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A communication method based on a dual-card terminal, characterized in that: Applied to a dual-card terminal, the dual-card terminal includes M antennas, where M is an even number greater than 2, and the method includes: When it is detected that the first subscriber identification module SIM card is in a call service state and the second SIM card is in a data processing service state, the second SIM card uses N antennas to send radio frequency signals in turn and uses the N antennas to receive radio frequency signals, the N antennas are at least the first antenna and the second antenna among the M antennas, and the first antenna is bound to a transmitting unit and a first main set receiving unit of the second SIM card, and the second antenna is bound to a first diversity receiving unit of the second SIM card; The first SIM card uses the first antenna to send radio frequency signals and uses MN antennas to receive radio frequency signals, the MN antennas are the antennas among the M antennas except those used by the second SIM card, and the MN antennas are bound to the second main diversity receiving unit of the first SIM card, and the second main diversity receiving unit includes a second main diversity receiving unit and a second diversity receiving unit.

2. The method according to claim 1, characterized in that: Before the second SIM card uses N antennas to send radio frequency signals in turn and uses the N antennas to receive radio frequency signals, the method further includes: Acquire a first frequency band combination consisting of a working frequency band of the call service and a working frequency band of the data processing; Detecting whether the priority identifier corresponding to the first frequency band combination in a preset configuration file is a first identifier; If it is detected that the priority identifier corresponding to the first frequency band combination is the first identifier, it is determined to allocate a signal path for the second SIM card according to a first allocation strategy, wherein the first allocation strategy indicates that the second SIM card needs to use N antennas to send radio frequency signals in turn and needs to use the N antennas to receive radio frequency signals.

3. The method according to claim 1 or 2, characterized in that: The M antennas include a main diversity antenna, and the main diversity antenna includes a main diversity antenna and a diversity antenna.

4. The method according to claim 3, characterized in that When M is 4 and N is 2; The second SIM card uses N antennas to send radio frequency signals in turn and uses the N antennas to receive radio frequency signals, including: The second SIM card transmits radio frequency signals alternately through the first path and the second path, wherein the transmitting unit is connected to the first input end of the first antenna switching switch, and the first output end of the first antenna switching switch is connected to the main antenna to form the first path; the transmitting unit is connected to the first input end of the first antenna switching switch, and the second output end of the first antenna switching switch is connected to the second antenna to form the second path; The second SIM card receives a radio frequency signal transmitted through a third path through the first main set receiving unit and receives a radio frequency signal transmitted through a fourth path through the first diversity receiving unit, wherein a first input end of the first antenna switching switch is connected to the first antenna through a first output end of the first antenna switching switch to form the third path; and a second input end of the first antenna switching switch is connected to the second antenna through a second output end of the first antenna switching switch to form the fourth path.

5. The method according to claim 4, characterized in that The MN antennas include a third antenna and a fourth antenna; The first SIM card uses the first antenna to send a radio frequency signal and uses MN antennas to receive a radio frequency signal, including: The first SIM card transmits a radio frequency signal through the first path; The first SIM card receives the radio frequency signal transmitted through the fifth path through the second main set receiving unit, and receives the radio frequency signal transmitted through the sixth path through the second diversity receiving unit, the first input end of the second antenna switching switch is connected to the third antenna through the first output end of the second antenna switching switch to form the fifth path; the second input end of the second antenna switching switch is connected to the fourth antenna through the second output end of the second antenna switching switch to form the sixth path, wherein the third output end of the first antenna switching switch is connected to the third input end of the second antenna switching switch.

6. The method according to claim 5, characterized in that When M is 4, the method further includes: When the first SIM card is in a first service and the second SIM card is in a second service, obtaining a second frequency band combination consisting of a working frequency band of the first service and a working frequency band of the second service; Detect whether the priority identifier corresponding to the second frequency band combination in the configuration file is the first identifier; If it is detected that the priority identifier of the second frequency band combination is the second identifier, it is determined to allocate signal paths for the first SIM card and the second SIM card according to a second allocation strategy, wherein the second allocation strategy is used to indicate that the first SIM card has the ability to transmit signals in two signal paths in turn.

7. The method according to claim 6, characterized in that The method comprises: The second allocation strategy instructs the first SIM card to transmit radio frequency signals through the first path and the second path in turn, and to receive radio frequency signals through the third path and the fourth path; The second allocation strategy instructs the second SIM card to send radio frequency signals through the seventh path and the eighth path in turn, and to receive signals through the fifth path and the sixth path; The transmitting unit is connected to the first input end of the first antenna switching switch, the third output end of the first antenna switching switch is connected to the third input end of the second antenna switching switch, and the first output end of the second antenna switching switch is connected to the third antenna, so as to form the seventh path; The transmitting unit is connected to the first input end of the first antenna switching switch, the third output end of the first antenna switching switch is connected to the third input end of the second antenna switching switch, and the second output end of the second antenna switching switch is connected to the fourth antenna to form the eighth path.

8. The method according to claim 6, characterized in that The method comprises: The second allocation strategy indicates that the first SIM card needs to transmit radio frequency signals through the first path and the second path in turn, and receive radio frequency signals through the third path and the fourth path; The second allocation strategy indicates that the second SIM card needs to transmit radio frequency signals through the first path, and receive radio frequency signals through the fifth path and the sixth path.

9. The method according to claim 1, characterized in that: The method further comprises: When it is detected that the first SIM card is in an idle state and the second SIM card is in a data processing service state, the second SIM card uses the M antennas to send radio frequency signals in turn, and uses the N antennas to receive radio frequency signals.

10. A dual-card terminal, characterized in that: include: a memory and a processor, the memory being coupled to the processor; The memory stores program instructions, and when the program instructions are executed by the processor, the dual-card terminal executes the communication method based on the dual-card terminal according to any one of claims 1 to 9.

11. A computer-readable storage medium comprising a computer program, characterized in that: When the computer program is executed on a dual-card terminal, the dual-card terminal is enabled to execute the communication method based on the dual-card terminal according to any one of claims 1 to 9.

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