A mobile terminal

Abstract

This application discloses a mobile terminal, relating to the field of communication technology. The mobile terminal includes: a control module, M antennas, and N signal transmission modules. The M antennas are used to transmit M signals of different frequency band combinations, where M and N are integers greater than 1. For each signal transmission module: the signal transmission module generates a signal to be transmitted; the control module selects the target antenna corresponding to the signal transmission module from the M antennas according to the target frequency band of the signal to be transmitted, and connects the signal transmission module to the target antenna corresponding to the signal transmission module; the target antenna corresponding to the signal transmission module is used to transmit the signal to be transmitted in the target frequency band; the target antennas corresponding to the N signal transmission modules are different; different target antennas, when transmitting the signal to be transmitted in the corresponding target frequency band, meet preset dual-low frequency / head-and-hand requirements. Thus, the mobile terminal can meet the 5G NSA dual-low frequency OTA standard and the B28+N78 head-and-hand requirements.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a mobile phone terminal. Background Technology

[0002] With the advent of 5G, major operators have added over-the-air (OTA) standards for 5G, especially the dual low-frequency requirement for 5G non-standalone (NSA) networks: LTE B20 + NR28. For example, Vodafone (VDF) has a dual low-frequency OTA standard, while Orange (France Telecom) has B28 + N78 head and hand requirements. In conventional solutions, to meet the dual low-frequency OTA standard and B28 + N78 head and hand requirements of 5G NSA, low-frequency signals need to be transmitted through an antenna on the side inside the mobile terminal. However, the clearance area of ​​the antenna on the side inside the mobile terminal is relatively small, which can lead to dropped 5G NSA low-frequency signals.

[0003] Therefore, how to enable mobile terminals to meet the dual low-frequency OTA standard of 5G NSA and the B28+N78 head and hand requirements is a problem that needs to be solved in this field. Summary of the Invention

[0004] This application provides a mobile terminal that meets the dual low-frequency OTA standard of 5G NSA and the B28+N78 head and hand requirements.

[0005] In a first aspect, this application provides a mobile terminal, comprising: a control module, M antennas, and N signal transmission modules, wherein the M antennas are used to transmit M signals of different frequency band combinations, and M and N are integers greater than 1; for each signal transmission module: the signal transmission module is used to generate a signal to be transmitted; the control module is used to select a target antenna corresponding to the signal transmission module from the M antennas according to the target frequency band of the signal to be transmitted, and connect the signal transmission module to the target antenna corresponding to the signal transmission module; the target antenna corresponding to the signal transmission module is used to transmit the signal to be transmitted in the target frequency band; wherein the target antennas corresponding to the N signal transmission modules are different; when different target antennas transmit the signal to be transmitted in the corresponding target frequency band, they meet the preset dual-low / head-and-hand requirements.

[0006] In the above technical solution, different target antennas meet the preset dual low / head and hand requirements when transmitting signals to be transmitted in the corresponding target frequency band. In this way, the mobile terminal can meet the dual low frequency OTA standard of 5G NSA and the B28+N78 head and hand requirements.

[0007] In one possible design, the N signal transmission modules include a 4G signal transmission module and a 5G signal transmission module; the 4G signal transmission module is used to generate 4G signals, which include low-frequency signals and mid-to-high-frequency signals; the 5G signal transmission module is used to generate 5G signals, which include low-frequency signals and mid-to-high-frequency signals.

[0008] In the above technical solution, N signal transmission modules are used to generate signals of multiple frequency bands, enabling the mobile terminal to meet the dual low-frequency OTA standard of 5G NSA and the B28+N78 head and hand requirements by combining signals of different frequency bands.

[0009] In one possible design, the M antennas include a first antenna, a second antenna, and a third antenna; the first antenna is located near the charging port of the mobile phone terminal; the second and third antennas are located near the earpiece of the mobile phone terminal, and the antenna clearance area of ​​the third antenna is larger than that of the second antenna; the first antenna is used to transmit 4G low-frequency signals, 4G mid-to-high-frequency signals, 5G low-frequency signals, and 5G mid-to-high-frequency signals; the second antenna is used to transmit 4G mid-to-high-frequency signals and 5G mid-to-high-frequency signals; and the third antenna is used to transmit 5G low-frequency signals.

[0010] In the above technical solution, the second and third antennas are close to the earpiece of the mobile phone terminal, so that the mobile phone terminal can meet the head and hand requirements; the antenna clearance area of ​​the third antenna is larger than that of the second antenna, so that the third antenna is used to transmit 5G low frequency signals without signal drop problems.

[0011] In one possible design, the control module is used to: determine that the target antenna corresponding to the 4G signal is the first antenna and the target antenna corresponding to the 5G signal is the third antenna when it is determined that the target frequency band of the 4G signal is low frequency and the target frequency band of the 5G signal is low frequency.

[0012] In the above technical solution, the first antenna is used to transmit low-frequency 4G signals, and the third antenna is used to transmit low-frequency 5G signals. In this way, the mobile terminal meets the dual low-frequency OTA standard of 5G NSA and the B28+N78 head and hand requirements.

[0013] In one possible design, the control module is used to: determine that the target antenna corresponding to the 4G signal is the first antenna and the target antenna corresponding to the 5G signal is the second antenna when it is determined that the target frequency band of the 4G signal is low frequency and the target frequency band of the 5G signal is mid-high frequency.

[0014] In the above technical solution, when the low-frequency 4G signal and the mid-to-high frequency 5G signal are combined, the low-frequency 4G signal is transmitted through the first antenna and the mid-to-high frequency 5G signal is transmitted through the second antenna, so that the mobile terminal meets the dual low-frequency OTA standard of 5G NSA and the B28+N78 head and hand requirements.

[0015] In one possible design, the control module is used to: determine that the target antenna corresponding to the 4G signal is the second antenna and the target antenna corresponding to the 5G signal is the first antenna when it is determined that the target frequency band of the 4G signal is mid-high frequency and the target frequency band of the 5G signal is mid-high frequency.

[0016] In the above technical solution, when the mid-to-high frequency 4G signal and the mid-to-high frequency 5G signal are combined, the mid-to-high frequency 4G signal is transmitted through the second antenna and the mid-to-high frequency 5G signal is transmitted through the first antenna, so that the mobile terminal meets the dual low-frequency OTA standard of 5G NSA and the B28+N78 head and hand requirements.

[0017] In one possible design, the control module is used to: determine that the target antenna for the 4G signal is a second antenna and the target antenna for the 5G signal is a third antenna when it is determined that the target frequency band for the 4G signal is mid-high frequency and the target frequency band for the 5G signal is low frequency.

[0018] In the above technical solution, when the mid-to-high frequency 4G signal and the low-frequency 5G signal are combined, the mid-to-high frequency 4G signal is transmitted through the second antenna and the low-frequency 5G signal is transmitted through the third antenna, so that the mobile terminal will not experience signal drop issues when transmitting the low-frequency 5G signal.

[0019] In one possible design, the mobile terminal further includes: a first DPDT, a second DPDT, a first 3P3T, and a second 3P3T; the first DPDT includes a first input terminal and a second input terminal, the first input terminal being connected to a 5G signal transmitting module, and the second input terminal being connected to a 5G signal receiving module; the first DPDT includes a first output terminal and a second output terminal, the first output terminal being connected to a third antenna, and the second output terminal being connected to a third input terminal of the second DPDT; the second DPDT includes a third input terminal and a fourth input terminal, the third input terminal being connected to a second output terminal of the first DPDT, and the fourth input terminal being connected to a 4G signal transmitting module; the second DPDT includes a third output terminal and a fourth output terminal, the third output terminal being connected to a first antenna, and the fourth output terminal being connected to a second antenna; the first 3P3T includes a fifth input terminal, a sixth input terminal, and a seventh input terminal, the fifth input terminal being connected to a 5G signal transmitting module; The signal transmitting module is connected, the sixth input terminal is connected to the 5G signal receiving module, and the seventh input terminal is connected to the eighth output terminal of the second 3P3T; the first 3P3T includes a fifth output terminal, a sixth output terminal, and a seventh output terminal, the fifth output terminal is connected to the third antenna, the sixth output terminal is connected to the first antenna, and the seventh output terminal is connected to the eighth input terminal of the second 3P3T; the second 3P3T includes an eighth input terminal, a ninth input terminal, and a tenth input terminal, the eighth input terminal is connected to the seventh output terminal of the first 3P3T, the ninth input terminal is connected to the 4G signal transmitting module, and the seventh input terminal is connected to the 4G signal receiving module; the second 3P3T includes an eighth output terminal, a ninth output terminal, and a tenth output terminal, the eighth output terminal is connected to the seventh input terminal of the first 3P3T, the ninth output terminal is connected to the second antenna, and the seventh output terminal is connected to the fourth antenna, wherein the fourth antenna is used to receive signals.

[0020] In the above technical solution, the first DPDT, the second DPDT, the first 3P3T and the second 3P3T are used to transmit signals of different frequency bands sent by different transmitting modules to the target antenna.

[0021] In one possible design, the mobile terminal also includes: K filters; each filter is used to filter the signal to be transmitted to obtain the signal to be transmitted in the target frequency band.

[0022] In the above technical solution, the signal to be transmitted is filtered by a filter to obtain the signal to be transmitted in the target frequency band, thereby improving the signal transmission accuracy.

[0023] In one possible design, the interference level between any two of the M antennas is less than a preset interference level.

[0024] In the above technical solution, since the interference level between any two of the M antennas is less than the preset interference level, signal interference problems are avoided when any two antennas transmit signals at the same time. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This application provides an internal architecture diagram of a mobile terminal.

[0027] Figure 2 A suitable mobile terminal architecture diagram is provided for embodiments of this application;

[0028] Figure 3 This application provides another internal architecture diagram of a mobile terminal.

[0029] Figure 4 This is a schematic diagram of the internal structure of a mobile terminal provided in an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of a signal transmission combination provided in an embodiment of this application;

[0031] Figure 6 This is a schematic diagram illustrating another signal transmission combination provided in an embodiment of this application;

[0032] Figure 7 This is a schematic diagram of another signal transmission combination provided in an embodiment of this application;

[0033] Figure 8 This is a schematic diagram of another signal transmission combination provided in an embodiment of this application;

[0034] Figure 9 This is a schematic diagram of a signal combination of different frequency bands provided in an embodiment of this application. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] The "dual low" requirement in the 5G NSA dual low-frequency OTA standard refers to the ability of a mobile terminal's antenna to transmit combinations of signals from different frequency bands. These combinations include: 4G low-frequency signals and 5G low-frequency signals; 4G low-frequency signals and 5G mid-to-high frequency signals; 4G mid-to-high frequency signals and 5G low-frequency signals; and 4G mid-to-high frequency signals and 5G mid-to-high frequency signals. In conventional solutions, major operators add an internal antenna to the mobile terminal to improve the transmission of 4G low-frequency signals in order to meet the 5G NSA dual low-frequency OTA standard and the B28+N78 head and hand requirements.

[0037] like Figure 1 As shown, the ANT2 antenna is used to transmit low-frequency 4G signals in 5G NSA. The low-frequency efficiency of these signals is generally below -15dB. The lower the signal frequency, the longer the signal wavelength, and the longer the required antenna length. However, due to the large duty cycle of the phone screen, the clearance area for the ANT2 antenna on the side is relatively small. If the ANT2 antenna is used to transmit low-frequency 4G signals, low-frequency signal drops will occur, failing to meet the dual-low-frequency OTA standard of 5G NSA. Therefore, an ANT7 antenna is added between the ANT2 and ANT6 antennas. The ANT7 antenna is used to transmit low-frequency 4G signals in 5G NSA to meet the dual-low-frequency OTA standard of 5G NSA. However, because the ANT7 antenna is located between the ANT2 and ANT6 antennas, the distance between the three antennas is relatively short, leading to signal interference when each antenna transmits or receives signals independently.

[0038] Figure 2 An exemplary embodiment of this application provides a suitable mobile terminal architecture diagram, such as... Figure 2 As shown, the mobile terminal architecture includes a control module, a signal transmission module, and antennas. For example, the antennas include M antennas, and the signal transmission modules include N signal transmission modules. The M antennas are used to transmit M signals from different frequency band combinations, where M and N are integers greater than 1. For each signal transmission module: the signal transmission module generates a signal to be transmitted, and the control module selects a target antenna corresponding to the signal transmission module from the M antennas based on the target frequency band of the signal to be transmitted, and connects the signal transmission module to the target antenna corresponding to the signal transmission module. The target antenna corresponding to the signal transmission module is used to transmit the signal to be transmitted in the target frequency band. The target antennas corresponding to the N signal transmission modules are different, and different target antennas, when transmitting the signal to be transmitted in the corresponding target frequency band, meet the preset dual-low / head-and-hand requirements.

[0039] In one example, the mobile terminal includes a control module, four signal transmission modules, and four antennas. The four signal transmission modules are: signal transmission module 1, signal transmission module 2, signal transmission module 3, and signal transmission module 4; the four antennas are: antenna 1, antenna 2, antenna 3, and antenna 4. If signal transmission module 1 generates a low-frequency signal to be transmitted, the control module selects antenna 2 from the four antennas as the target antenna corresponding to signal transmission module 1. The control module connects signal transmission module 1 to the target antenna 2 corresponding to signal transmission module 1, and transmits the low-frequency signal generated by signal transmission module 1 through the target antenna 2.

[0040] Optionally, the N signal transmission modules include a 4G signal transmission module and a 5G signal transmission module. The 4G signal transmission module is used to generate 4G signals, which include low-frequency signals and mid-to-high-frequency signals. The 5G signal transmission module is used to generate 5G signals, which include low-frequency signals and mid-to-high-frequency signals.

[0041] In the above implementation mechanism, the 4G signal transmission module and the 5G signal transmission module are used to generate signals of multiple frequency bands. When the mobile terminal combines the low-frequency band signal generated by the 4G signal transmission module and the low-frequency band signal generated by the 5G signal transmission module, the mobile terminal can meet the dual low-frequency OTA standard of 5G NSA.

[0042] Optionally, the M antennas include a first antenna (ANT1), a second antenna (ANT2), and a third antenna (ANT4), such as... Figure 3 As shown, the first antenna (ANT1) is located near the charging port of the mobile phone terminal; the second antenna (ANT2) and the third antenna (ANT4) are located near the earpiece of the mobile phone terminal, and the antenna clearance area of ​​the third antenna (ANT4) is larger than that of the second antenna (ANT2); the first antenna (ANT1) is used to transmit 4G low-frequency signals, 4G mid-to-high-frequency signals, 5G low-frequency signals, and 5G mid-to-high-frequency signals; the second antenna (ANT2) is used to transmit 4G mid-to-high-frequency signals and 5G mid-to-high-frequency signals; and the third antenna (ANT4) is used to transmit 5G low-frequency signals.

[0043] In the above implementation mechanism, if the third antenna (ANT4) is used to transmit 4G mid-to-high frequency signals and 5G mid-to-high frequency signals, it does not meet the head-and-hand requirements. This is because the power reduction of the third antenna (ANT4) when reducing the specific absorption rate (SAR) is only 3-6 dB, which does not meet the head-and-hand requirements and will result in a poor user experience. However, the clearance area of ​​the third antenna (ANT4) is larger than that of the second antenna (ANT2). If the third antenna (ANT4) is used to transmit 5G low-frequency signals, the effect will be better than that of the second antenna (ANT2) transmitting 5G low-frequency signals, and there will be no problem of low-frequency signal drop. Therefore, the antenna architecture is adjusted so that the third antenna (ANT4) is used to transmit 5G low-frequency signals, and the second antenna (ANT2) is used to transmit 4G mid-to-high frequency signals and 5G mid-to-high frequency signals. This is because the power reduction of the second antenna (ANT2) when reducing SAR is smaller and can meet the head-and-hand requirements.

[0044] Optionally, the interference level between any two of the M antennas is less than a preset interference level.

[0045] Continue as Figure 3 As shown, because the distance between ANT2 and ANT6 antennas is relatively large, the interference level between them is less than the preset interference level. The preset interference level and the distance between any two antennas can be set empirically. Figure 1 In order to enable mobile terminals to meet the dual low-frequency OTA standard of 5G NSA, an ANT7 antenna is set between the ANT2 and ANT6 antennas. The ANT7 antenna transmits the 4G low-frequency signal in 5G NSA, thereby achieving the dual low-frequency requirement of 5G NSA. However, since the ANT7 antenna is located between the ANT2 and ANT6 antennas, the distance between the three antennas is relatively short, which will cause signal interference when the three antennas transmit or receive signals separately. In addition, adding an ANT7 antenna will increase the cost. Therefore, this embodiment solves the signal interference problem between the two antennas and reduces the antenna cost.

[0046] Optionally, the mobile terminal also includes: a first DPDT, a second DPDT, a first 3P3T, a second 3P3T, and K filters, wherein each filter is used to filter the signal to be transmitted to obtain the signal to be transmitted in the target frequency band.

[0047] Figure 4 An exemplary schematic diagram of the internal structure of a mobile terminal provided in an embodiment of this application is shown, such as... Figure 4As shown, the internal structure of this mobile terminal includes a control module, a 5G signal transmission module, a 5G signal reception module, a 4G signal transmission module, a 4G signal reception module, a first DPDT, a second DPDT, a first 3P3T, a second 3P3T, three filters, a first antenna (ANT1), a second antenna (ANT2), a third antenna (ANT4), and a fourth antenna (ANT5); it also includes a Transmit and Receive (TRX) port, a Diversity Receive (DRX) port, a Primary Receive Multiple-Input Multiple-Output (PM / PRX MIMO) port, and a Diversity Receive Multiple-Input Multiple-Output (DM / DRX MIMO) port. NR refers to 5G new radio; LTE refers to Long Term Evolution (LTE), which can be understood as a 4G signal. For example, LB NR TRX is a 5G low-frequency transceiver port; LB LTE TRX is a 4G low-frequency transceiver port.

[0048] Specifically, the first DPDT includes a first input terminal and a second input terminal, the first input terminal being connected to the 5G signal transmitting module and the second input terminal being connected to the 5G signal receiving module; the first DPDT also includes a first output terminal and a second output terminal, the first output terminal being connected to the third antenna (ANT4) and the second output terminal being connected to the third input terminal of the second DPDT; the second DPDT includes a third input terminal and a fourth input terminal, the third input terminal being connected to the second output terminal of the first DPDT and the fourth input terminal being connected to the 4G signal transmitting module; the second DPDT also includes a third output terminal and a fourth output terminal, the third output terminal being connected to the first antenna (ANT1) and the fourth output terminal being connected to the second antenna (ANT2); the first 3P3T includes a fifth input terminal, a sixth input terminal, and a seventh input terminal, the fifth input terminal being connected to the 5G signal transmitting module, the sixth input terminal being connected to the 5G signal receiving module, and the seventh input terminal being connected to the eighth input terminal of the second 3P3T. The output terminals are connected as follows: The first 3P3T includes a fifth output terminal, a sixth output terminal, and a seventh output terminal. The fifth output terminal is connected to the third antenna (ANT4), the sixth output terminal is connected to the first antenna (ANT1), and the seventh output terminal is connected to the eighth input terminal of the second 3P3T. The second 3P3T includes an eighth input terminal, a ninth input terminal, and a tenth input terminal. The eighth input terminal is connected to the seventh output terminal of the first 3P3T, the ninth input terminal is connected to the 4G signal transmitting module, and the seventh input terminal is connected to the 4G signal receiving module. The second 3P3T includes an eighth output terminal, a ninth output terminal, and a tenth output terminal. The eighth output terminal is connected to the seventh input terminal of the first 3P3T, the ninth output terminal is connected to the second antenna (ANT2), and the seventh output terminal is connected to the fourth antenna (ANT5), wherein the fourth antenna (ANT5) is used to receive signals. Each filter is used to filter the signal to be transmitted to obtain the signal to be transmitted in the target frequency band. For example, if a filter is configured to allow low-frequency signals and block mid-to-high-frequency signals, when the filter receives both low-frequency and mid-to-high-frequency signals, the low-frequency signals can be transmitted to the target antenna through the filter, while the mid-to-high-frequency signals are blocked by the filter and stop transmitting.

[0049] In the above implementation mechanism, the 5G signal transmission module and the 4G signal transmission module each generate a signal to be transmitted. The control module, based on the target frequency band of the signal to be transmitted, selects the target antenna from the first antenna (ANT1), the second antenna (ANT2), the third antenna (ANT4), and the fourth antenna (ANT5) that corresponds to the signal to be transmitted generated by the 5G and 4G signal transmission modules, respectively, and connects the 5G and 4G signal transmission modules to their corresponding target antennas. Then, through the first DPDT, the second DPDT, the first 3P3T, the second 3P3T, and a filter, the signals to be transmitted generated by the 5G and 4G signal transmission modules are transmitted to the target antennas respectively.

[0050] In one example, the 5G signal transmission module generates a low-frequency signal to be transmitted, and the 4G signal transmission module generates a mid-to-high frequency signal to be transmitted. The control module selects the third antenna (ANT4) and the second antenna (ANT2) as the target antennas based on the frequency bands of the signals generated by the 5G and 4G signal transmission modules, respectively. The third antenna (ANT4) is used to transmit the low-frequency signal generated by the 5G signal transmission module, and the second antenna (ANT2) is used to transmit the mid-to-high frequency signal generated by the 4G signal transmission module. The control module connects the 5G signal transmission module and the third antenna (ANT4), and connects the 4G signal transmission module and the second antenna (ANT2). Through a first DPDT and filter, the low-frequency signal generated by the 5G signal transmission module is transmitted to the third antenna (ANT4), and through a second 3P3T and filter, the mid-to-high frequency signal generated by the 4G signal transmission module is transmitted to the second antenna (ANT2).

[0051] Optionally, the control module is used to: when it is determined that the target frequency band of the 4G signal is low frequency and the target frequency band of the 5G signal is low frequency, determine that the target antenna corresponding to the 4G signal is the first antenna (ANT1) and the target antenna corresponding to the 5G signal is the third antenna (ANT4).

[0052] like Figure 5 As shown in one example, a filter connected to the first antenna (ANT1) is configured to pass low-frequency signals and block mid-to-high-frequency signals, while a filter connected to the third antenna (ANT4) is configured to pass low-frequency signals and block mid-to-high-frequency signals. The 4G signal transmission module generates a low-frequency signal to be transmitted, and the 5G signal module generates a low-frequency signal to be transmitted. Based on these signals, the control module determines that the target frequency band for both the 4G and 5G signals is low-frequency. Therefore, it determines that the target antenna corresponding to the 4G signal transmission module is the first antenna (ANT1), and the target antenna corresponding to the 5G signal transmission module is the third antenna (ANT4). Thus, the low-frequency signal to be transmitted generated by the 4G signal module is transmitted to the first antenna (ANT1) through the second DPDT and the filter connected to the first antenna (ANT1); the low-frequency signal to be transmitted generated by the 5G signal module is transmitted to the third antenna (ANT4) through the first DPDT and the filter connected to the third antenna (ANT4).

[0053] Optionally, the control module is used to: when it is determined that the target frequency band of the 4G signal is low frequency and the target frequency band of the 5G signal is medium to high frequency, determine that the target antenna corresponding to the 4G signal is the first antenna (ANT1) and the target antenna corresponding to the 5G signal is the second antenna (ANT2).

[0054] like Figure 6As shown in one example, a filter connected to the first antenna (ANT1) is configured to pass low-frequency signals and block mid-to-high-frequency signals, while a filter connected to the second antenna (ANT2) is configured to pass mid-to-high-frequency signals and block low-frequency signals. The 4G signal transmission module generates a low-frequency signal to be transmitted, and the 5G signal module generates a mid-to-high-frequency signal to be transmitted. Based on the low-frequency signal generated by the 4G signal transmission module and the mid-to-high-frequency signal generated by the 5G signal module, the control module determines that the target frequency band for the 4G signal is low-frequency and the target frequency band for the 5G signal is mid-to-high-frequency. Therefore, it determines that the target antenna corresponding to the 4G signal transmission module is the first antenna (ANT1), and the target antenna corresponding to the 5G signal transmission module is the second antenna (ANT2). Thus, the low-frequency signal generated by the 4G signal module is transmitted to the first antenna (ANT1) through the second DPDT and the filter connected to the first antenna (ANT1); the mid-to-high-frequency signal generated by the 5G signal module is transmitted to the second antenna (ANT2) through the first 3P3T and the filter connected to the second antenna (ANT2).

[0055] Optionally, the control module is used to: when it is determined that the target frequency band of the 4G signal is mid-high frequency and the target frequency band of the 5G signal is mid-high frequency, determine that the target antenna corresponding to the 4G signal is the second antenna (ANT2) and the target antenna corresponding to the 5G signal is the first antenna (ANT1).

[0056] like Figure 7 As shown in one example, a filter connected to the first antenna (ANT1) is configured to pass mid-to-high frequency signals and block low-frequency signals, while a filter connected to the second antenna (ANT2) is configured to pass mid-to-high frequency signals and block low-frequency signals. The 4G signal transmission module generates a mid-to-high frequency signal to be transmitted, and the 5G signal module also generates a mid-to-high frequency signal to be transmitted. Based on these signals, the control module determines that the target frequency band for both the 4G and 5G signals is mid-to-high frequency. Therefore, it determines that the target antenna corresponding to the 4G signal transmission module is the second antenna (ANT2), and the target antenna corresponding to the 5G signal transmission module is the first antenna (ANT1). Thus, the mid-to-high frequency signal generated by the 4G signal transmission module is transmitted to the second antenna (ANT2) via the second 3P3T and the filter connected to the second antenna (ANT2); the mid-to-high frequency signal generated by the 5G signal transmission module is transmitted to the first antenna (ANT1) via the first 3P3T and the filter connected to the first antenna (ANT1).

[0057] Optionally, the control module is used to: determine that the target antenna for the 4G signal is the second antenna (ANT2) and the target antenna for the 5G signal is the third antenna (ANT4) when the target frequency band of the 4G signal is determined to be mid-high frequency and the target frequency band of the 5G signal is low frequency.

[0058] like Figure 8 As shown in one example, a filter connected to the second antenna (ANT2) is configured to pass mid-to-high frequency signals and block low-frequency signals, while a filter connected to the third antenna (ANT4) is configured to pass low-frequency signals and block mid-to-high frequency signals. The 4G signal transmission module generates a mid-to-high frequency signal to be transmitted, and the 5G signal module generates a low-frequency signal to be transmitted. Based on the mid-to-high frequency signal generated by the 4G signal transmission module and the low-frequency signal generated by the 5G signal module, the control module determines that the target frequency band for the 4G signal is mid-to-high frequency and the target frequency band for the 5G signal is low frequency. Therefore, it determines that the target antenna corresponding to the 4G signal transmission module is the second antenna (ANT2), and the target antenna corresponding to the 5G signal transmission module is the third antenna (ANT4). Thus, the mid-to-high frequency signal generated by the 4G signal module is transmitted to the second antenna (ANT2) through the second 3P3T and the filter connected to the second antenna (ANT2); the low-frequency signal generated by the 5G signal module is transmitted to the third antenna (ANT4) through the first DPDT and the filter connected to the third antenna (ANT4).

[0059] It should also be noted that this solution not only meets the OTA requirements of operators but also supports 4TX ASDIV and 4MIMO functions. 4TX ASDIV means that among the four antennas used for transmitting signals, the control module selects the antenna with the best transmission performance. 4MIMO means that when receiving signals, the control module selects four antennas with strong reception performance to simultaneously receive signals. The antenna selection for transmitting or receiving signals by the control module is based on empirical settings.

[0060] Figure 9 An exemplary schematic diagram of a signal combination of different frequency bands provided in an embodiment of this application is shown, such as... Figure 9 The diagram shows the functions of each antenna on a mobile terminal when transmitting and receiving 5G and 4G signals at different frequency bands. Combined with... Figure 3 and Figure 9As shown, for example, when the target frequency band for 4G signals is determined to be mid-to-high frequency and the target frequency band for 5G signals is low frequency, the ANT2 antenna is used to transmit and receive 4G mid-to-high frequency signals, while the ANT1 antenna is used for diversity reception of 4G mid-to-high frequency signals, the ANT4 antenna is used for primary reception of 4G mid-to-high frequency signals, and the ANT5 antenna is used for diversity reception of 4G mid-to-high frequency signals; similarly, the ANT4 antenna is used to transmit and receive 5G low-frequency signals, while the ANT1 antenna is used for diversity reception of 5G low-frequency signals. It is important to note that the more antennas used for diversity reception, the higher the efficiency of the mobile terminal. For example, when downloading a file, if all four antennas simultaneously receive the file's signal, the download speed will be faster.

[0061] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A mobile terminal, characterized in that, include: The system comprises a control module, M antennas, and N signal transmission modules. The M antennas are used to transmit M signals from different frequency band combinations and are located inside the mobile terminal. The interference level between any two of the M antennas is less than a preset interference level. M and N are integers greater than 1. For each signal transmission module: The signal transmitting module is used to generate a signal to be transmitted; The control module is used to select the target antenna corresponding to the signal transmission module from the M antennas according to the target frequency band of the signal to be transmitted, and connect the signal transmission module to the target antenna corresponding to the signal transmission module. The target antenna corresponding to the signal transmission module is used to transmit the signal to be transmitted in the target frequency band; Among them, the target antennas corresponding to the N signal transmission modules are different; When transmitting signals to be transmitted in the corresponding target frequency band, different target antennas meet the preset dual-low and head-and-hand requirements; The M antennas include a first antenna, a second antenna, and a third antenna; The first antenna is located near the charging port of the mobile phone terminal; The second antenna and the third antenna are close to the earpiece of the mobile phone terminal, and the antenna clearance area of ​​the third antenna is larger than that of the second antenna. The first antenna is used to transmit 4G low-frequency signals, 4G mid-to-high-frequency signals, 5G low-frequency signals, and 5G mid-to-high-frequency signals; The second antenna is used to transmit 4G mid-to-high frequency signals and 5G mid-to-high frequency signals; The third antenna is used to transmit 5G low-frequency signals.

2. The mobile terminal as described in claim 1, characterized in that, The N signal transmission modules include 4G signal transmission modules and 5G signal transmission modules; The 4G signal transmitting module is used to generate 4G signals, which include low-frequency signals and medium- and high-frequency signals. The 5G signal transmission module is used to generate 5G signals, which include low-frequency signals and medium- and high-frequency signals.

3. The mobile terminal as described in claim 2, characterized in that, The control module is used for: When it is determined that the target frequency band of the 4G signal is low frequency and the target frequency band of the 5G signal is low frequency, the target antenna corresponding to the 4G signal is determined to be the first antenna and the target antenna corresponding to the 5G signal is determined to be the third antenna.

4. The mobile terminal as described in claim 2, characterized in that, The control module is used for: When it is determined that the target frequency band of the 4G signal is low frequency and the target frequency band of the 5G signal is medium to high frequency, the target antenna corresponding to the 4G signal is determined to be the first antenna and the target antenna corresponding to the 5G signal is determined to be the second antenna.

5. The mobile terminal as described in claim 2, characterized in that, The control module is used for: When it is determined that the target frequency band of the 4G signal is mid-to-high frequency and the target frequency band of the 5G signal is mid-to-high frequency, the target antenna corresponding to the 4G signal is determined to be the second antenna, and the target antenna corresponding to the 5G signal is determined to be the first antenna.

6. The mobile terminal as described in claim 2, characterized in that, The control module is used for: When it is determined that the target frequency band of the 4G signal is mid-to-high frequency and the target frequency band of the 5G signal is low frequency, the target antenna corresponding to the 4G signal is determined to be the second antenna and the target antenna corresponding to the 5G signal is determined to be the third antenna.

7. The mobile terminal as described in claim 2, characterized in that, Also includes: First DPDT, Second DPDT, First 3P3T and Second 3P3T; The first DPDT includes a first input terminal and a second input terminal, the first input terminal being connected to the 5G signal transmitting module and the second input terminal being connected to the 5G signal receiving module; The first DPDT includes a first output terminal and a second output terminal, the first output terminal is connected to the third antenna, and the second output terminal is connected to the third input terminal of the second DPDT. The second DPDT includes a third input terminal and a fourth input terminal. The third input terminal is connected to the second output terminal of the first DPDT, and the fourth input terminal is connected to the 4G signal transmitting module. The second DPDT includes a third output terminal and a fourth output terminal, wherein the third output terminal is connected to the first antenna and the fourth output terminal is connected to the second antenna; The first 3P3T includes a fifth input terminal, a sixth input terminal, and a seventh input terminal. The fifth input terminal is connected to the 5G signal transmitting module, the sixth input terminal is connected to the 5G signal receiving module, and the seventh input terminal is connected to the eighth output terminal of the second 3P3T. The first 3P3T includes a fifth output terminal, a sixth output terminal, and a seventh output terminal. The fifth output terminal is connected to the third antenna, the sixth output terminal is connected to the first antenna, and the seventh output terminal is connected to the eighth input terminal of the second 3P3T. The second 3P3T includes an eighth input terminal, a ninth input terminal, and a tenth input terminal. The eighth input terminal is connected to the seventh output terminal of the first 3P3T, the ninth input terminal is connected to the 4G signal transmitting module, and the seventh input terminal is connected to the 4G signal receiving module. The second 3P3T includes an eighth output terminal, a ninth output terminal, and a tenth output terminal. The eighth output terminal is connected to the seventh input terminal of the first 3P3T, the ninth output terminal is connected to the second antenna, and the seventh output terminal is connected to the fourth antenna, wherein the fourth antenna is used to receive signals.

8. The mobile terminal as described in claim 1, characterized in that, Also includes: K filters; Each filter is used to filter the signal to be transmitted to obtain the signal to be transmitted in the target frequency band.

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