Method for determining target transmission line, transmission line assembly and related products

Abstract

The application relates to the field of electronic technology and provides a method for determining a target transmission line, a transmission line assembly and related products. The method comprises the following steps: acquiring a current working scene, wherein the current working scene is used for representing whether a radio frequency signal is disturbed and / or whether the radio frequency signal causes disturbance; and determining a target transmission line from multiple candidate transmission lines according to the current working scene to transmit the radio frequency signal. The above method can change the selected target transmission line when the disturbance in the current working scene changes. Compared with the traditional method of using one radio frequency transmission line, the method provided by the application can flexibly switch the type of the target transmission line for transmitting the radio frequency signal, thereby maximizing the transmission performance of the selected radio frequency transmission line and ensuring the transmission quality of the radio frequency signal.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a method for determining a target transmission line, a transmission line component, and related products. Background Art

[0002] With the development of terminal devices, the forms of terminal devices are becoming more and more diverse. Among terminal devices, foldable screen devices have the advantages of large screens and easy operation, which are favored by many users.

[0003] Common folding screen devices include two folding parts that can be folded in half, and the two folding parts are connected by a connecting axis. The antenna is usually not arranged on the side frame where the connecting axis is located. In order to make full use of the frame of the folding screen device, the antenna and the radio frequency circuit are often arranged in different folding parts. At this time, a through-axis flexible printed circuit board (FPC) can be used between the radio frequency circuit and the antenna to pass through the connecting axis to transmit the radio frequency signal. When the user folds or opens the folding screen device, the through-axis FPC will be continuously bent or unfolded. Therefore, in order to improve the reliability of the through-axis FPC, the radio frequency transmission line often adopts an airgap (spacer air layer) solution.

[0004] However, the impedance difference of the RF transmission line of the airgap solution is large when it is unfolded and bent, which will lead to impedance mismatch, affect the transmission performance, and thus affect the communication performance of the folding screen device. Summary of the Invention

[0005] The present application provides a method, device, chip, transmission line component, electronic device, computer-readable storage medium and computer program product for determining a target transmission line, which can flexibly switch the type of target transmission line transmitting a radio frequency signal, maximize the transmission performance of the selected radio frequency transmission line, and thereby ensure the transmission quality of the radio frequency signal.

[0006] In a first aspect, a method for determining a target transmission line is provided, the method comprising: obtaining a current operating scenario, the current operating scenario being used to characterize whether a radio frequency signal is interfered with and / or whether the radio frequency signal causes interference; and determining a target transmission line from a plurality of candidate transmission lines based on the current operating scenario to transmit the radio frequency signal.

[0007] In the method, the terminal device can select a target transmission line matching the current working scenario from multiple candidate transmission lines to transmit the radio frequency signal according to the current working scenario. When the interference condition changes in the current working scenario, the selected target transmission line can also change. Compared with the traditional way of using one radio frequency transmission line, the way of selecting the target transmission line provided in the application can flexibly switch the type of the target transmission line for transmitting the radio frequency signal, thereby maximizing the transmission performance of the selected radio frequency transmission line and ensuring the transmission quality of the radio frequency signal.

[0008] In some possible implementation manners, the multiple candidate transmission lines include a first transmission line and a second transmission line; the first transmission line is a strip line, and the second transmission line is a coplanar waveguide transmission line; or the first transmission line is a strip line, and the second transmission line is a microstrip line; or the first transmission line is a microstrip line, and the second transmission line is a coplanar waveguide transmission line.

[0009] That is, the first transmission line and the second transmission line are radio frequency transmission lines with different stack structures, which can be used to switch in different working scenarios to ensure transmission performance. In summary, the first transmission line has stronger anti-interference ability than the second transmission line, the impedance fluctuation of the second transmission line is smaller than that of the first transmission line, and the bending performance of the second transmission line is better than that of the first transmission line. When the current working scenario is an interference scenario or an anti-interference scenario, the terminal device can determine that the first transmission line is the target transmission line, and when the current working scenario is neither an interference scenario nor an anti-interference scenario, the terminal device can determine that the second transmission line is the target transmission line. The interference scenario is a scenario in which the radio frequency signal is interfered, and the anti-interference scenario is a scenario in which the radio frequency signal causes interference.

[0010] In some possible implementation manners, when the current working scenario is an interference scenario or an anti-interference scenario, the target transmission line is the first transmission line, the interference scenario is a scenario in which the radio frequency signal is interfered, and the anti-interference scenario is a scenario in which the radio frequency signal causes interference; when the current working scenario is neither the interference scenario nor the anti-interference scenario, the target transmission line is the second transmission line.

[0011] In the interference scenario or the anti-interference scenario, the interference factor is given priority, the terminal device can select a strip line with strong anti-interference ability to transmit the radio frequency signal, which can avoid the case that the performance of the terminal device is reduced due to interference and improve user experience; when the current working scenario is neither an interference scenario nor an anti-interference scenario, the transmission performance is given priority, the terminal device can select a coplanar waveguide transmission line with weak anti-interference ability but small impedance fluctuation and strong bending resistance to transmit the radio frequency signal, thereby reducing the loss of the radio frequency signal, ensuring sufficient transmission power, and improving communication quality.

[0012] In some possible implementations, determining a target transmission line from a plurality of candidate transmission lines to transmit the radio frequency signal based on the current working scenario includes: determining whether the current working scenario is the anti-interference scenario; if so, determining that the target transmission line is the first transmission line; if not, determining whether the current working scenario is the interference scenario; when the current working scenario is the interference scenario, determining that the target transmission line is the first transmission line; when the current working scenario is not the interference scenario, determining that the target transmission line is the second transmission line.

[0013] In an interference scenario or an anti-interference scenario, priority is given to interference factors. The terminal device can select a first transmission line with strong anti-interference capability to transmit RF signals, which can avoid the performance degradation of the terminal device caused by interference and improve user experience. When it is neither in an interference scenario nor in an anti-interference scenario, priority is given to transmission performance. The terminal device can select a second transmission line with weak anti-interference capability but small impedance fluctuation and strong anti-bending capability to transmit RF signals, which reduces the loss of RF signals, ensures sufficient transmission power, and improves communication quality.

[0014] In some possible implementations, determining whether the current working scenario is an anti-interference scenario includes: determining whether the first transmission line is complete; if so, determining whether the current working scenario is the anti-interference scenario; if not, determining that the target transmission line is the second transmission line; determining that the target transmission line is the second transmission line when the current working scenario is not the interference scenario includes: when the current working scenario is not the interference scenario, determining whether the second transmission line is normal; when the second transmission line is complete, determining that the target transmission line is the second transmission line; when the second transmission line is incomplete, determining that the target transmission line is the first transmission line.

[0015] The terminal device first determines whether the first transmission line is complete. If the first transmission line is not complete, it means that the first transmission line may be physically damaged and cannot normally transmit the radio frequency signal. Generally, since the second transmission line has stronger bending resistance and lower failure rate than the first transmission line, switching to the second transmission line directly in the case of damage to the first transmission line can save subsequent judgment procedures and improve the switching efficiency of the radio frequency transmission line. If the first transmission line is complete, it can be further determined whether the terminal device is in an anti-interference scene. If it is in an anti-interference scene, the interference factor is given priority, and the terminal device can select the first transmission line with strong anti-interference capability to transmit the radio frequency signal, which can avoid the performance degradation of the terminal device caused by interference and improve the user experience. If it is not in an anti-interference scene, the terminal device can continue to determine whether it is in an interference scene. When it is in an interference scene, the interference factor is also given priority, and the terminal device selects the first transmission line with strong anti-interference capability to transmit the radio frequency signal, which can avoid the performance degradation of the terminal device caused by interference and improve the user experience. If the terminal device is not in an interference scene, the transmission performance is given priority, and the terminal device can select the second transmission line with weak anti-interference capability but strong bending resistance and small impedance fluctuation as the target transmission line to transmit the radio frequency signal, which reduces the loss of the radio frequency signal, ensures sufficient transmission power, and improves the communication quality. Optionally, before selecting the second transmission line as the target transmission line, it can be further determined whether the second transmission line is complete. If it is complete, the terminal device can switch to the second transmission line; if it is not complete, it means that the second transmission line may be physically damaged and cannot normally transmit the radio frequency signal, and the terminal device continues to use the first transmission line as the target transmission line to transmit the radio frequency signal, ensuring normal signal transmission. Moreover, the arrangement of the two radio frequency transmission lines is equivalent to adding an alternative radio frequency transmission line. If one of them is damaged, i.e., when the in-place detection circuit detects that any one of them is not complete, the terminal device switches to the other one to transmit the radio frequency signal, avoiding the situation that the radio frequency transmission line cannot transmit the radio frequency signal after being damaged, and improving the reliability of the terminal device.

[0016] In some possible implementation manners, the radio frequency signal is a time-division signal; when the current working scene is an interference scene and an anti-interference scene, the target transmission line is the first transmission line, the interference scene is a scene in which the radio frequency signal is interfered, and the anti-interference scene is a scene in which the radio frequency signal causes interference; when the current working scene is an interference scene and is not an anti-interference scene, in a transmission state, the target transmission line is the second transmission line, and in a receiving state, the target transmission line is the first transmission line; when the current working scene is not an interference scene and is an anti-interference scene, in the transmission state, the target transmission line is the first transmission line, and in the receiving state, the target transmission line is the second transmission line; when the current working scene is not an interference scene and is not an anti-interference scene, the target transmission line is the second transmission line.

[0017] In some possible implementations, determining a target transmission line from a plurality of candidate transmission lines to transmit a radio frequency signal based on the current working scenario includes: determining whether the current working scenario is an anti-interference scenario; if so, determining whether the current working scenario is an interference scenario; when the current working scenario is an interference scenario, determining the target transmission line to be the first transmission line; when the current working scenario is not an interference scenario, determining the target transmission line to be the second transmission line in a transmitting state, and determining the target transmission line to be the first transmission line in a receiving state.

[0018] In some possible implementations, the method further includes: if the current working scene is not an anti-interference scene, determining whether the current working scene is an interference scene; when the current working scene is an interference scene, in a transmitting state, determining that the target transmission line is the second transmission line, and in a receiving state, determining that the target transmission line is the first transmission line; when the current working scene is not an interference scene, determining that the target transmission line is the second transmission line.

[0019] In the interference scenario, it is the receiving signal that is interfered with, while in the anti-interference scenario, it is the transmitting signal that interferes with other components. Therefore, in the interference scenario, the receiving signal can select the first transmission line with strong anti-interference ability, while in the anti-interference scenario, the transmitting signal can select the first transmission line with strong anti-interference ability. In other cases, the second transmission line with good transmission performance can be selected. Therefore, while avoiding interference, the transmission performance can be guaranteed to the greatest extent.

[0020] In some possible implementations, determining whether the current working scenario is an anti-interference scenario includes: determining whether the first transmission line is complete; if not, determining that the target transmission line is the second transmission line; if so, determining whether the second transmission line is complete; when the second transmission line is incomplete, determining that the target transmission line is the first transmission line; and when the second transmission line is complete, determining whether the current working scenario is an anti-interference scenario.

[0021] The terminal device initially determines whether the first transmission line is intact. If the first transmission line is incomplete, it may be physically damaged and unable to properly transmit RF signals. In this case, the second, intact transmission line is selected for transmission. Generally, because the second transmission line is more resistant to bending than the first transmission line and has a lower failure rate, switching directly to the second transmission line in the event of a damaged first transmission line can save subsequent judgment steps and improve RF transmission line switching efficiency. If the first transmission line is intact, the terminal device can continue to determine whether it is in an anti-interference scenario and proceed with subsequent steps.

[0022] In some possible implementation manners, the radio frequency signal includes a first radio frequency signal and a second radio frequency signal, and a transmission priority of the first radio frequency signal is higher than a transmission priority of the second radio frequency signal; the plurality of candidate transmission lines include a first transmission line, a second transmission line, and a third transmission line; the first transmission line and the third transmission line are strip lines, and the second transmission line is a coplanar waveguide transmission line; or the first transmission line and the third transmission line are strip lines, and the second transmission line is a microstrip line; or the first transmission line and the third transmission line are microstrip lines, and the second transmission line is a coplanar waveguide transmission line.

[0023] In some possible implementation manners, when the current working scenario of the first radio frequency signal is neither the interference scenario nor the anti-interference scenario, the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line.

[0024] Specifically, when the current working scenario of the first radio frequency signal is neither the interference scenario nor the anti-interference scenario, it indicates that the anti-interference requirement of the first radio frequency signal is not strong at this moment, and then the transmission performance of the signal with a high transmission priority is preferentially considered. The terminal device can select the second transmission line with good transmission performance as the target transmission line of the first radio frequency signal to transmit the first radio frequency signal, to ensure that the transmission power of the first radio frequency signal with a high transmission priority is large enough and the receiving sensitivity is high. Then, the terminal device selects the first transmission line or the third transmission line as the target transmission line of the second radio frequency signal to transmit the second radio frequency signal, which can be any one of the first transmission line or the third transmission line, or can be one selected from the first transmission line or the third transmission line that is complete and has no physical damage.

[0025] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the current working scenario of the second radio frequency signal is neither the interference scenario nor the anti-interference scenario, and the first transmission line and the third transmission line are both incomplete, the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line.

[0026] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, if the current working scenario of the second radio frequency signal is neither the interference scenario nor the anti-interference scenario, and the first transmission line and the third transmission line are both incomplete, that is, the first transmission line and the third transmission line may both be physically damaged and unable to normally transmit signals, at this time, the transmission path of the first radio frequency signal with high transmission priority needs to be preferentially ensured, and therefore, the target transmission line of the first radio frequency signal is determined as the second transmission line to transmit the first radio frequency signal, so as to ensure the normal use of the signal with high priority. Alternatively, the terminal device can also determine any one of the first transmission line or the third transmission line as the target transmission line corresponding to the second radio frequency signal, so as to avoid the control logic confusion of the second radio frequency signal even if the second radio frequency signal cannot be normally transmitted.

[0027] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the current working scenario of the second radio frequency signal is neither the interference scenario nor the anti-interference scenario, and at least one of the first transmission line and the third transmission line is complete, the target transmission line corresponding to the first radio frequency signal is the complete one of the first transmission line and the third transmission line, and the target transmission line corresponding to the second radio frequency signal is the second transmission line.

[0028] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, if the current working scenario of the second radio frequency signal is neither the interference scenario nor the anti-interference scenario, if the first transmission line and the third transmission line are not both incomplete, and one or both of them may be complete, at this time, the effect of the first radio frequency signal with high transmission priority is preferentially considered, the complete one of the first transmission line and the third transmission line with strong anti-interference capability is used to transmit the first radio frequency signal, so as to preferentially ensure that the first radio frequency signal will not be interfered by other signals and will not interfere other components. Then, the terminal device selects one complete one from the first transmission line and the third transmission line to transmit the second radio frequency signal. If the first transmission line and the third transmission line are both complete, one of them is selected to transmit the second radio frequency signal, so as to ensure the normal transmission of the second radio frequency signal.

[0029] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the current working scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, and the first transmission line and the third transmission line are both complete, the target transmission line corresponding to the first radio frequency signal and the second radio frequency signal is the first transmission line and the third transmission line.

[0030] When the current working scenario of the first RF signal is an interference scenario or an anti-interference scenario, and the current working scenario of the second RF signal is both an interference scenario or an anti-interference scenario, if the first transmission line and the third transmission line are both intact, the interference problem is given priority, and the first transmission line and the third transmission line with strong anti-interference capabilities are used as the target transmission lines corresponding to the first RF signal and the second RF signal to transmit the first RF signal and the second RF signal. Optionally, the first transmission line can be selected to transmit the first RF signal, and the third transmission line can be selected to transmit the second RF signal; or the first transmission line can be selected to transmit the second RF signal, and the third transmission line can be selected to transmit the first RF signal. This embodiment of the present application does not limit this.

[0031] When the current working scenario of the first RF signal is the interference scenario or the anti-interference scenario, and the current working scenario of the second RF signal is the interference scenario or the anti-interference scenario, and when both the first transmission line and the third transmission line are incomplete, the target transmission line corresponding to the first RF signal is the second transmission line, and the target transmission line corresponding to the second RF signal is the first transmission line and the third transmission line.

[0032] When the current operating scenario of the first RF signal is an interference scenario or an anti-interference scenario, and the current operating scenario of the second RF signal is both an interference scenario or an anti-interference scenario, if both the first transmission line and the third transmission line are incomplete, and only the second transmission line remains intact, the terminal device can select the complete second transmission line to prioritize the normal use of the first RF signal with a higher transmission priority. Optionally, the terminal device can also determine either the first transmission line or the third transmission line as the target transmission line corresponding to the second RF signal. Even if the second RF signal cannot be transmitted normally, confusion in the control logic of the second RF signal can be avoided.

[0033] When the current working scenario of the first RF signal is the interference scenario or the anti-interference scenario, the current working scenario of the second RF signal is the interference scenario or the anti-interference scenario, and when the first transmission line is complete and the third transmission line is incomplete, the target transmission line corresponding to the first RF signal is the first transmission line, and the target transmission line corresponding to the second RF signal is the second transmission line; when the current working scenario of the first RF signal is the interference scenario or the anti-interference scenario, the current working scenario of the second RF signal is the interference scenario or the anti-interference scenario, and when the first transmission line is incomplete and the third transmission line is complete, the target transmission line corresponding to the first RF signal is the third transmission line, and the target transmission line corresponding to the second RF signal is the second transmission line; wherein, the interference scenario is a scenario in which the RF signal is interfered with, and the anti-interference scenario is a scenario in which the RF signal causes interference.

[0034] When the current working scenario of the first RF signal is an interference scenario or an anti-interference scenario, and the current working scenario of the second RF signal is both an interference scenario or an anti-interference scenario, if the first transmission line is complete and the third transmission line is not completely damaged, for example, the first transmission line is complete and the third transmission line is incomplete, the terminal device can select the first transmission line as the target transmission line corresponding to the first RF signal to transmit the first RF signal, giving priority to ensuring that the first RF signal with a high transmission priority will not interfere or be interfered with. The terminal device can also select the second transmission line to transmit the second RF signal to ensure the normal transmission of the second RF signal. If the first transmission line is incomplete and the third transmission line is complete, the terminal device can select the third transmission line as the target transmission line corresponding to the first RF signal to transmit the first RF signal, giving priority to ensuring that the first RF signal with a high transmission priority will not interfere. The terminal device can also select the second transmission line to transmit the second RF signal to ensure the normal transmission of the second RF signal.

[0035] In some possible implementations, determining a target transmission line from a plurality of candidate transmission lines for transmitting a radio frequency signal based on the current operating scenario includes: determining whether the current operating scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario; if not, determining that the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line; if so, determining whether the current operating scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario; when the current operating scenario of the second radio frequency signal is neither the interference scenario nor the anti-interference scenario, determining whether both the first transmission line and the third transmission line are incomplete; when both the first transmission line and the third transmission line are incomplete, determining that the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line; when at least one of the first transmission line and the third transmission line is complete, determining that the target transmission line corresponding to the first radio frequency signal is the complete one of the first and third transmission lines, and the target transmission line corresponding to the second radio frequency signal is the second transmission line.

[0036] In some possible implementations, the method further includes: when the current working scenario of the second RF signal is the interference scenario or the anti-interference scenario, determining whether the first transmission line and the third transmission line are both complete; if so, determining that the target transmission lines corresponding to the first RF signal and the second RF signal are the first transmission line and the third transmission line; if not, determining whether the first transmission line and the third transmission line are both incomplete; when both the first transmission line and the third transmission line are incomplete, determining that the target transmission line corresponding to the first RF signal is the second transmission line, and the target transmission line corresponding to the second RF signal is the first transmission line; when at least one of the first transmission line and the third transmission line is complete, determining that the target transmission line corresponding to the first RF signal is the complete one of the first transmission line and the third transmission line, and the target transmission line corresponding to the second RF signal is the second transmission line.

[0037] In scenarios where two RF signals need to operate simultaneously, the above method prioritizes the signal quality of the RF signal with the highest transmission priority, while also ensuring smooth RF paths, thus maximizing high-quality transmission and reception of both RF signals. Furthermore, when two RF signals operate simultaneously, this method effectively adds an alternative RF transmission line. If one of the two RF signals is damaged, meaning that the in-place detection circuit detects an incomplete RF line, the signal is switched to the other intact transmission line. This avoids the situation where a damaged RF transmission line prevents normal RF signal transmission, thereby improving the reliability of the terminal device.

[0038] In some possible implementations, before determining whether the current working scenario of the first RF signal is the interference scenario or the anti-interference scenario, the method further includes: determining whether the first RF signal and the second RF signal are working simultaneously; if not, performing any one of the methods in the above embodiments on the working one of the first RF signal and the second RF signal; if so, determining whether the second transmission line is complete; when the second transmission line is complete, performing the step of determining whether the current working scenario of the first RF signal is the interference scenario or the anti-interference scenario; when the second transmission line is incomplete, determining whether the first transmission line and the third transmission line are both complete; when the first transmission line and the third transmission line are both complete, determining that the target transmission lines corresponding to the first RF signal and the second RF transmission line are the first transmission line and the third transmission line; when at least one of the first transmission line and the third transmission line is complete, performing any one of the methods in the above embodiments on the first RF signal.

[0039] In the scenario where two radio frequency signals work simultaneously, the signal quality of the radio frequency signal with high transmission priority is preferentially guaranteed, while the smoothness of the radio frequency path is also considered, thereby maximizing the high-quality transmission and reception of the two radio frequency signals. Moreover, when the two radio frequency signals work simultaneously, one standby radio frequency transmission line is added, so that if one of the radio frequency transmission lines is damaged, the signal is transmitted through the other complete transmission line when the in-place detection circuit detects any incomplete line, thereby avoiding the situation that the radio frequency signal cannot be normally transmitted after the radio frequency transmission line is damaged, and improving the reliability of the terminal device.

[0040] In a second aspect, a device for determining a target transmission line is provided, which includes a unit composed of software and / or hardware, and the unit is configured to execute any one of the methods in the technical solutions of the first aspect.

[0041] In a third aspect, an embodiment of the present application provides a chip, which includes a processor; the processor is configured to read and execute a computer program stored in a memory, so as to execute any one of the methods in the technical solutions of the first aspect.

[0042] Optionally, the chip further includes a memory, and the memory is connected to the processor through a circuit or a wire.

[0043] Further optionally, the chip further includes a communication interface.

[0044] In a fourth aspect, a transmission line assembly is provided, which includes a plurality of candidate transmission lines, and the plurality of candidate transmission lines includes a first transmission line and a second transmission line; the first transmission line is configured to transmit a radio frequency signal in an interference scenario or an anti-interference scenario; the second transmission line is configured to transmit the radio frequency signal in a non-interference scenario or a non-anti-interference scenario; the interference scenario is a scenario where the radio frequency signal is interfered, and the anti-interference scenario is a scenario where the radio frequency signal causes interference.

[0045] In some possible implementation manners, the first transmission line is a strip line, and the second transmission line is a coplanar waveguide transmission line; or the first transmission line is a strip line, and the second transmission line is a microstrip line; or the first transmission line is a microstrip line, and the second transmission line is a coplanar waveguide transmission line.

[0046] In some possible implementation manners, the plurality of candidate transmission lines further includes a third transmission line, and the third transmission line and the first transmission line are transmission lines of the same type.

[0047] In a fifth aspect, an electronic device is provided, which includes a processor, a memory and an interface; the processor, the memory and the interface cooperate with each other, so that the electronic device executes any one of the methods in the technical solutions of the first aspect.

[0048] In a sixth aspect, an electronic device is provided, comprising any transmission line component in the technical solution described in the fourth aspect.

[0049] In the seventh aspect, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed by a processor, the processor executes any one of the methods in the technical solution described in the first aspect.

[0050] In an eighth aspect, a computer program product is provided, comprising: a computer program code, which, when executed on an electronic device, enables the electronic device to execute any one of the methods in the technical solution described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 1 is a schematic structural diagram of a terminal device 100 provided in an embodiment of the present application;

[0052] Figure 2 is a software structure block diagram of the terminal device 100 provided in an embodiment of the present application;

[0053] Figure 3 This is a structural diagram of a folding screen device using a through-axis FPC provided in an embodiment of the present application;

[0054] Figure 4 1 is a schematic diagram of a stacked structure of a radio frequency transmission line provided in an embodiment of the present application;

[0055] Figure 5 1 is a schematic diagram of a laminated structure of a stripline provided in an embodiment of the present application;

[0056] Figure 6 1 is a schematic diagram of a stacked structure of a coplanar waveguide transmission line provided in an embodiment of the present application;

[0057] Figure 7 1 is a schematic diagram of a stacked structure of a microstrip line provided in an embodiment of the present application;

[0058] Figure 8 1 is a simulation curve diagram of the isolation between a coplanar waveguide transmission line and a stripline and a power line, respectively, provided in an embodiment of the present application;

[0059] Figure 9 This is an impedance comparison diagram of a coplanar waveguide transmission line and a stripline provided in an embodiment of the present application;

[0060] Figure 10 This is a flow chart of a method for determining a target transmission line provided in an embodiment of the present application;

[0061] Figure 11is a structural diagram of a transmission line assembly provided in an embodiment of the present application;

[0062] Figure 12 is a flowchart of another method for determining a target transmission line provided in an embodiment of the present application;

[0063] Figure 13 is a flowchart of another method for determining a target transmission line provided in an embodiment of the present application;

[0064] Figure 14 is a flowchart of another method for determining a target transmission line provided in an embodiment of the present application;

[0065] Figure 15 is a flowchart of another method for determining a target transmission line provided in an embodiment of the present application;

[0066] Figure 16 1 is a structural diagram of another transmission line assembly provided in an embodiment of the present application;

[0067] Figure 17 1 is a structural diagram of another transmission line assembly provided in an embodiment of the present application;

[0068] Figure 18 is a flowchart of another method for determining a target transmission line provided in an embodiment of the present application;

[0069] Figure 19 is a flowchart of another method for determining a target transmission line provided in an embodiment of the present application;

[0070] Figure 20 This is a schematic diagram of the structure of a device for determining a target transmission line provided in an embodiment of the present application. DETAILED DESCRIPTION

[0071] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships can exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0072] In the following, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of the features.

[0073] The method for determining the target transmission line provided in the embodiment of the present application can be applied to terminal devices such as mobile phones, tablet computers, wearable devices, vehicle-mounted devices, augmented reality (AR) / virtual reality (VR) devices, laptop computers, ultra-mobile personal computers (UMPCs), netbooks, and personal digital assistants (PDAs). The embodiment of the present application does not impose any restrictions on the specific type of terminal device.

[0074] For example, Figure 1 1 is a schematic diagram of the structure of an example terminal device 100 provided in an embodiment of the present application. The terminal 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 194, and a subscriber identification module (SIM) card interface 195. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, etc.

[0075] It should be understood that the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the terminal device 100. In other embodiments of the present application, the terminal device 100 may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0076] The processor 110 may include one or more processing units. For example, the processor 110 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU). The different processing units may be independent devices or integrated into one or more processors.

[0077] The controller may be the nerve center and command center of the terminal device 100. The controller may generate an operation control signal according to the instruction operation code and the timing signal to complete the control of fetching and executing instructions.

[0078] Processor 110 may also include a memory for storing instructions and data. In some embodiments, the memory in processor 110 is a cache memory. This memory can store instructions or data that have just been used or are being recycled by processor 110. If processor 110 needs to use the same instruction or data again, it can directly access the memory. This avoids duplicate accesses, reduces processor 110 latency, and thus improves system efficiency.

[0079] In some embodiments, the processor 110 may include one or more interfaces. The interfaces may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, and / or a universal serial bus (USB) interface.

[0080] The I2C interface is a bidirectional synchronous serial bus, including a serial data line (SDA) and a serial clock line (SCL). In some embodiments, the processor 110 can contain multiple sets of I2C bus. The processor 110 can be coupled to the touch sensor 180K, the charger, the flash, the camera 193, etc. through different I2C bus interfaces respectively. For example, the processor 110 can be coupled to the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through the I2C bus interface, and the touch function of the terminal device 100 is realized.

[0081] The I2S interface can be used for audio communication. In some embodiments, the processor 110 can contain multiple sets of I2S bus. The processor 110 can be coupled to the audio module 170 through the I2S bus, and communication between the processor 110 and the audio module 170 is realized. In some embodiments, the audio module 170 can deliver audio signals to the wireless communication module 160 through the I2S interface, and the function of answering a phone through a Bluetooth headset is realized.

[0082] The PCM interface can also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 can be coupled through the PCM bus interface. In some embodiments, the audio module 170 can also deliver audio signals to the wireless communication module 160 through the PCM interface, and the function of answering a phone through a Bluetooth headset is realized. Both the I2S interface and the PCM interface can be used for audio communication.

[0083] The UART interface is a universal serial data bus, which is used for asynchronous communication. The bus can be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, the UART interface is usually used to connect the processor 110 and the wireless communication module 160. For example, the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface, and the Bluetooth function is realized. In some embodiments, the audio module 170 can deliver audio signals to the wireless communication module 160 through the UART interface, and the function of playing music through a Bluetooth headset is realized.

[0084] The MIPI interface can be used to connect the processor 110 to peripheral devices such as the display 194 and the camera 193. MIPI interfaces include the camera serial interface (CSI) and the display serial interface (DSI). In some embodiments, the processor 110 and the camera 193 communicate via the CSI interface to implement the camera function of the terminal device 100. The processor 110 and the display 194 communicate via the DSI interface to implement the display function of the terminal device 100.

[0085] The GPIO interface can be configured via software. The GPIO interface can be configured as either a control signal or a data signal. In some embodiments, the GPIO interface can be used to connect the processor 110 to the camera 193, display 194, wireless communication module 160, audio module 170, sensor module 180, etc. The GPIO interface can also be configured as an I2C interface, an I2S interface, a UART interface, a MIPI interface, etc.

[0086] The USB interface 130 is an interface that complies with USB standards and may be a Mini USB interface, a Micro USB interface, a USB Type-C interface, or the like. The USB interface 130 can be used to connect a charger to charge the terminal device 100, or to transfer data between the terminal device 100 and peripheral devices. It can also be used to connect headphones to play audio. This interface can also be used to connect to other terminal devices, such as AR devices.

[0087] It is understood that the interface connection relationship between the modules illustrated in the embodiments of the present application is merely an illustrative illustration and does not constitute a structural limitation on the terminal device 100. In other embodiments of the present application, the terminal device 100 may also adopt a different interface connection method from the above embodiments, or a combination of multiple interface connection methods.

[0088] The charging management module 140 is configured to receive charging input from a charger. The charger can be either a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 can receive charging input from the wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 can receive wireless charging input via the wireless charging coil of the terminal device 100. While charging the battery 142, the charging management module 140 can also provide power to the terminal device via the power management module 141.

[0089] The power management module 141 is used to connect the battery 142, the charging management module 140, and the processor 110. The power management module 141 receives input from the battery 142 and / or the charging management module 140, and provides power to the processor 110, the internal memory 121, the external memory, the display 194, the camera 193, and the wireless communication module 160. The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle count, and battery health status (leakage, impedance). In some other embodiments, the power management module 141 can also be set in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 can also be set in the same device.

[0090] The wireless communication function of the terminal device 100 can be implemented through the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor and the baseband processor.

[0091] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Figure 1 The structures of antenna 1 and antenna 2 are merely examples. Each antenna in terminal device 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In other embodiments, the antennas can be used in conjunction with tuning switches.

[0092] The mobile communication module 150 can provide solutions for wireless communications including 2G / 3G / 4G / 5G applied to the terminal device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, and filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the same device as at least some of the modules of the processor 110.

[0093] The modem processor may include a modulator and a demodulator. The modulator is used to modulate the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After being processed by the baseband processor, the low-frequency baseband signal is passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be an independent device. In other embodiments, the modem processor may be independent of the processor 110 and be set in the same device as the mobile communication module 150 or other functional modules.

[0094] The wireless communication module 160 can provide wireless communication solutions including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR), etc. applied to the terminal device 100. The wireless communication module 160 can be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110. The wireless communication module 160 can also receive the signal to be sent from the processor 110, frequency modulate it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2.

[0095] In some embodiments, the antenna 1 of the terminal device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the terminal device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technology. The GNSS may include a global positioning system (GPS), a global navigation satellite system (GLONASS), a Beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS) and / or a satellite based augmentation system (SBAS).

[0096] The terminal device 100 implements display functions through a GPU, display screen 194, and an application processor. The GPU is a microprocessor for image processing that connects the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or modify display information.

[0097] Display screen 194 is used to display images, videos, etc. Display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a MiniLED, a MicroLED, a Micro-oLed, or a quantum dot light-emitting diode (QLED). In some embodiments, terminal device 100 may include one or N display screens 194, where N is a positive integer greater than 1.

[0098] The terminal device 100 can realize the shooting function through the ISP, camera 193, video codec, GPU, display screen 194 and application processor.

[0099] The ISP processes data fed back by camera 193. For example, when taking a photo, the shutter is opened, and light is transmitted through the lens to the camera's photosensitive element. The light signal is converted into an electrical signal, which is then passed to the ISP for processing and converted into a visible image. The ISP can also perform algorithmic optimization on image noise, brightness, and skin tone. It can also optimize parameters such as exposure and color temperature of the captured scene. In some embodiments, the ISP can be located within camera 193.

[0100] The camera 193 is used to capture still images or videos. The object generates an optical image through the lens and projects it onto the photosensitive element. The photosensitive element can be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the light signal into an electrical signal, and then passes the electrical signal to the ISP for conversion into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV or other format. In some embodiments, the terminal device 100 may include 1 or N cameras 193, where N is a positive integer greater than 1.

[0101] The digital signal processor is used to process digital signals. In addition to processing digital image signals, it can also process other digital signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the frequency point energy.

[0102] Video codecs are used to compress or decompress digital video. Terminal device 100 may support one or more video codecs. This allows terminal device 100 to play or record videos in various encoding formats, such as Moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, and MPEG4.

[0103] The NPU is a neural network (NN) computing processor. Drawing on the structure of biological neural networks, such as the transmission patterns between neurons in the human brain, it rapidly processes input information and can continuously self-learn. The NPU can enable intelligent cognitive applications in the terminal device 100, such as image recognition, face recognition, speech recognition, and text comprehension.

[0104] The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal device 100. The external memory card communicates with the processor 110 via the external memory interface 120 to implement data storage functions. For example, files such as music and videos can be stored on the external memory card.

[0105] The internal memory 121 can be used to store computer executable program codes, which include instructions. The processor 110 executes various functional applications and data processing of the terminal device 100 by running the instructions stored in the internal memory 121. The internal memory 121 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc. The data storage area can store data created during the use of the terminal device 100 (such as audio data, a phone book, etc.), etc. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc.

[0106] The terminal device 100 can implement audio functions such as music playback and recording through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the headphone jack 170D, and the application processor.

[0107] The audio module 170 is used to convert digital audio information into analog audio signal output, and is also used to convert analog audio input into digital audio signals. The audio module 170 can also be used to encode and decode audio signals. In some embodiments, the audio module 170 can be provided in the processor 110, or some functional modules of the audio module 170 can be provided in the processor 110.

[0108] The speaker 170A, also called a "speaker", is used to convert audio electrical signals into sound signals. The terminal device 100 can listen to music or listen to hands-free calls through the speaker 170A.

[0109] The receiver 170B, also called a "handset", is used to convert audio electrical signals into sound signals. When the terminal device 100 receives a call or voice message, the user can hear the voice by placing the receiver 170B close to the ear.

[0110] Microphone 170C, also known as "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or sending a voice message, the user can speak by putting their mouth close to the microphone 170C to input the sound signal into the microphone 170C. The terminal device 100 can be provided with at least one microphone 170C. In other embodiments, the terminal device 100 can be provided with two microphones 170C, which can not only collect sound signals but also realize noise reduction function. In other embodiments, the terminal device 100 can also be provided with three, four or more microphones 170C to realize sound signal collection, noise reduction, and can also identify the source of sound, realize directional recording function, etc.

[0111] The headphone jack 170D is used to connect a wired headphone and can be the USB interface 130 or a 3.5mm open mobile terminal platform (OMTP) standard interface or a cellular telecommunications industry association of the USA (CTIA) standard interface.

[0112] Pressure sensor 180A is used to sense pressure signals and convert them into electrical signals. In some embodiments, pressure sensor 180A can be located on display screen 194. There are many types of pressure sensors 180A, such as resistive, inductive, and capacitive. A capacitive pressure sensor can include at least two parallel plates made of conductive material. When force is applied to pressure sensor 180A, the capacitance between the electrodes changes. Terminal device 100 determines the intensity of the pressure based on this change in capacitance. When a touch operation is applied to display screen 194, terminal device 100 detects the intensity of the touch operation based on pressure sensor 180A. Terminal device 100 can also calculate the location of the touch based on the detection signal from pressure sensor 180A. In some embodiments, touch operations applied to the same touch location but with different touch operation intensities can correspond to different operation instructions. For example, when a touch operation with an intensity less than a first pressure threshold is applied to a short message application icon, an instruction to view short messages is executed. When a touch operation with an intensity greater than or equal to the first pressure threshold is applied to a short message application icon, an instruction to create a new short message is executed.

[0113] The gyroscope sensor 180B can be used to determine the motion posture of the terminal device 100. In some embodiments, the angular velocity of the terminal device 100 around three axes (i.e., x, y, and z axes) can be determined by the gyroscope sensor 180B. The gyroscope sensor 180B can be used for shooting anti-shake. For example, when the shutter is pressed, the gyroscope sensor 180B detects the angle of the terminal device 100 shaking, calculates the distance that the lens module needs to compensate based on the angle, and allows the lens to offset the shaking of the terminal device 100 through reverse movement to achieve anti-shake. The gyroscope sensor 180B can also be used for navigation and somatosensory game scenes.

[0114] The air pressure sensor 180C is used to measure air pressure. In some embodiments, the terminal device 100 calculates the altitude through the air pressure value measured by the air pressure sensor 180C to assist in positioning and navigation.

[0115] The magnetic sensor 180D includes a Hall effect sensor. The terminal device 100 can use the magnetic sensor 180D to detect the opening and closing of the flip case. In some embodiments, when the terminal device 100 is a flip phone, the terminal device 100 can detect the opening and closing of the flip cover based on the magnetic sensor 180D. Furthermore, based on the detected opening and closing status of the case or flip cover, features such as automatic unlocking of the flip cover can be configured.

[0116] Accelerometer 180E can detect the magnitude of acceleration of the terminal device 100 in all directions (generally three axes). When the terminal device 100 is stationary, it can detect the magnitude and direction of gravity. It can also be used to identify the terminal device's posture, enabling applications such as switching between landscape and portrait modes and pedometers.

[0117] The distance sensor 180F is used to measure distance. The terminal device 100 can measure distance using infrared or laser. In some embodiments, when shooting a scene, the terminal device 100 can use the distance sensor 180F to measure distance to achieve fast focusing.

[0118] The proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The terminal device 100 emits infrared light outward through the light emitting diode. The terminal device 100 uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the terminal device 100. When insufficient reflected light is detected, the terminal device 100 can determine that there is no object near the terminal device 100. The terminal device 100 can use the proximity light sensor 180G to detect when the user holds the terminal device 100 close to the ear to talk, so as to automatically turn off the screen to save power. The proximity light sensor 180G can also be used in leather case mode and pocket mode to automatically unlock and lock the screen.

[0119] Ambient light sensor 180L is used to sense ambient light brightness. Terminal device 100 can adaptively adjust the brightness of display screen 194 based on the perceived ambient light. Ambient light sensor 180L can also be used to automatically adjust white balance when taking photos. Ambient light sensor 180L can also work with proximity light sensor 180G to detect whether terminal device 100 is in a pocket to prevent accidental touches.

[0120] The fingerprint sensor 180H is used to collect fingerprints. The terminal device 100 can use the collected fingerprint characteristics to implement fingerprint unlocking, access application locks, fingerprint photography, fingerprint call answering, etc.

[0121] The temperature sensor 180J is used to detect temperature. In some embodiments, the terminal device 100 uses the temperature detected by the temperature sensor 180J to execute a temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the terminal device 100 reduces the performance of the processor located near the temperature sensor 180J to reduce power consumption and implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the terminal device 100 heats the battery 142 to prevent the terminal device 100 from shutting down abnormally due to low temperature. In other embodiments, when the temperature is lower than another threshold, the terminal device 100 boosts the output voltage of the battery 142 to prevent abnormal shutdown due to low temperature.

[0122] The touch sensor 180K is also called a "touch panel." The touch sensor 180K can be provided on the display screen 194. The touch sensor 180K and the display screen 194 form a touch screen, also called a "touch screen." The touch sensor 180K is used to detect touch operations applied thereto or in the vicinity thereof. The touch sensor can transmit the detected touch operations to the application processor to determine the type of touch event. Visual output related to the touch operations can be provided via the display screen 194. In other embodiments, the touch sensor 180K can also be provided on the surface of the terminal device 100, at a location different from that of the display screen 194.

[0123] The bone conduction sensor 180M can obtain vibration signals. In some embodiments, the bone conduction sensor 180M can obtain vibration signals from the vibrating bones of the human body. The bone conduction sensor 180M can also contact the human pulse to receive blood pressure pulse signals. In some embodiments, the bone conduction sensor 180M can also be set in headphones to form bone conduction headphones. The audio module 170 can parse out voice signals based on the vibration signals of the vibrating bones of the human body obtained by the bone conduction sensor 180M to implement voice functions. The application processor can parse heart rate information based on the blood pressure pulse signals obtained by the bone conduction sensor 180M to implement heart rate detection functions.

[0124] The buttons 190 include a power button, a volume button, etc. The buttons 190 may be mechanical buttons or touch buttons. The terminal device 100 may receive key inputs and generate key signal inputs related to user settings and function control of the terminal device 100.

[0125] Motor 191 can generate vibration prompts. Motor 191 can be used for incoming call vibration prompts, and can also be used for touch vibration feedback. For example, touch operations acting on different applications (such as taking pictures, audio playback, etc.) can correspond to different vibration feedback effects. For touch operations acting on different areas of the display screen 194, motor 191 can also correspond to different vibration feedback effects. Different application scenarios (for example: time reminders, receiving messages, alarm clocks, games, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.

[0126] The indicator 192 may be an indicator light, which may be used to indicate the charging status, power level changes, messages, missed calls, notifications, etc.

[0127] The SIM card interface 195 is used to connect a SIM card. The SIM card can be connected to and disconnected from the terminal device 100 by inserting or removing it from the SIM card interface 195. The terminal device 100 can support one or N SIM card interfaces, where N is a positive integer greater than one. The SIM card interface 195 can support Nano SIM cards, Micro SIM cards, SIM cards, and the like. Multiple cards can be inserted into the same SIM card interface 195 simultaneously. The multiple cards can be of the same or different types. The SIM card interface 195 can also be compatible with different types of SIM cards. The SIM card interface 195 can also be compatible with external memory cards. The terminal device 100 interacts with the network through the SIM card to implement functions such as calls and data communications. In some embodiments, the terminal device 100 uses an eSIM, i.e., an embedded SIM card. The eSIM card can be embedded in the terminal device 100 and cannot be separated from the terminal device 100.

[0128] The software system of the terminal device 100 can adopt a layered architecture, an event-driven architecture, a micro-kernel architecture, a micro-service architecture, or a cloud architecture. In the embodiment of the present application, the Android system with a layered architecture is used as an example to illustrate the software structure of the terminal device 100.

[0129] Figure 2 This is a software structure diagram of the terminal device 100 in an embodiment of the present application. The layered architecture divides the software into several layers, each with clear roles and division of labor. The layers communicate with each other through software interfaces. In some embodiments, the Android system is divided into four layers: the application layer, the application framework layer, the Android runtime and system libraries, and the kernel layer. The application layer can include a series of application packages.

[0130] like Figure 2 As shown, the application package may include applications such as camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, short message, etc.

[0131] The application framework layer provides an application programming interface (API) and programming framework for the applications in the application layer. The application framework layer includes some predefined functions.

[0132] like Figure 2 As shown, the application framework layer may include a window manager, a content provider, a view system, a phone manager, a resource manager, a notification manager, and the like.

[0133] The window manager is used to manage windows programs. The window manager can acquire the display screen size, determine whether there is a status bar, lock the screen, and capture the screen, etc.

[0134] The content provider is used to store and acquire data, and make the data accessible to the application program. The data can include video, image, audio, dialed and received phone, browsing history and bookmark, phone book, etc.

[0135] The view system includes visual controls, such as a control for displaying text, a control for displaying pictures, etc. The view system can be used to build an application program. A display interface can be composed of one or more views. For example, a display interface including a short message notification icon can include a view for displaying text and a view for displaying pictures.

[0136] The phone manager is used to provide the communication function of the terminal device 100. For example, the management of the call state (including call connection, call hang-up, etc.).

[0137] The resource manager provides various resources for the application program, such as localized strings, icons, pictures, layout files, video files, etc.

[0138] The notification manager makes the application program display notification information in the status bar, which can be used to convey a type of message, which can automatically disappear after a short stay without user interaction. For example, the notification manager is used to inform the completion of downloading, message reminders, etc. The notification manager can also be a notification in the form of a chart or a scroll bar text appearing in the top status bar of the system, such as a notification of an application program running in the background, and can also be a notification in the form of a dialogue window appearing on the screen. For example, prompting text information in the status bar, issuing a prompt sound, terminal device vibration, indicator light blinking, etc.

[0139] The Android runtime includes the core library and the virtual machine. The Android runtime is responsible for the scheduling and management of the Android system.

[0140] The core library includes two parts: one part is the function function called by the java language, and the other part is the core library of Android.

[0141] The application program layer and the application program framework layer run in the virtual machine. The virtual machine executes the java file of the application program layer and the application program framework layer into a binary file. The virtual machine is used to perform the management of the object life cycle, the management of the stack, the management of the thread, the management of the security and the exception, and the garbage collection, etc.

[0142] The system library can include multiple functional modules, such as a surface manager, media libraries, a 3D graphics processing library (such as OpenGL ES), and a 2D graphics engine (such as SGL).

[0143] The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.

[0144] The media library supports playback and recording of a variety of common audio and video formats, as well as static image files. The media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

[0145] The 3D graphics processing library is used to implement 3D graphics drawing, image rendering, compositing, and layer processing.

[0146] A 2D graphics engine is a drawing engine for 2D drawings.

[0147] The kernel layer is the layer between hardware and software. The kernel layer includes at least display driver, camera driver, audio driver, and sensor driver.

[0148] For ease of understanding, the following examples of this application will be described with Figure 1 and Figure 2 Taking the terminal device of the structure shown as an example, the method for determining the target transmission line provided in the embodiment of the present application is specifically explained in combination with the accompanying drawings and application scenarios.

[0149] The above-mentioned terminal device can be a folding screen device. Common folding screen devices include two folding parts that can be folded in half, and the two folding parts are connected by a connecting axis. In this application, the two folding parts of the folding screen device used for folding are respectively referred to as the first structure and the second structure. Usually, in order to facilitate routing, the main radiator of the antenna and the RF chip can be set in the same structure of the folding screen device to shorten the distance of the RF routing. However, with the increasing functions of terminal devices and the increase in communication standards, the number of antennas on terminal devices is also increasing. On the folding screen device, since the connecting axis occupies one frame of the structure, multiple antennas can only be distributed on the other three frames of the structure, and the antenna space is severely squeezed. In order to improve antenna performance and increase antenna space, people can make full use of the frames of the two structures of the folding screen device and set multiple antennas on the frames of the first structure and the second structure respectively. When the RF chip and the antenna are located in different structures, an RF transmission line is required to connect the antenna feeding point and the RF circuit.

[0150] Figure 3 This is a schematic diagram of the structure of a folding screen device. Figure 3 The first structure is provided with a printed circuit board (PCB) 1, and a radio frequency chip 1 is attached to the PCB 1 to implement radio frequency signal processing. The PCB 3 provided on the first structure can be used to arrange the tuning circuit of the nearby antenna. The second structure is provided with a PCB 2, and a radio frequency chip 2 is attached to the PCB 2 to implement radio frequency signal processing. The PCB 4 provided on the second structure can be used to arrange the tuning circuit of the nearby antenna. The first structure and the second structure can also be respectively provided with a battery 1 and a battery 2. Taking the radio frequency signal output by the radio frequency chip 1 as an example, the radio frequency signal emitted by the radio frequency chip 1 needs to cross the connecting shaft to reach the second structure. Generally, considering the folding characteristics of the folding screen device, a shaft-penetrating FPC is used to transmit the radio frequency signal. For example, the radio frequency signal output by the radio frequency chip 1 sequentially passes through the PCB 5, the shaft-penetrating FPC 1, the FPC 3, and the PCB 4 in the first structure to reach the antenna, so as to realize cross-board transmission of the radio frequency signal. Among them, the FPC 2 can be provided with a power line and a control signal line. Similarly, the radio frequency signal processed by the radio frequency chip 2 can also be transmitted and received through the antenna provided on the first structure through the shaft-penetrating FPC 1. It should be noted that if the FPC 2 is provided with a power line and a control signal line, the FPC 1 can be provided with a radio frequency transmission line; if the FPC 1 is provided with a power line and a control signal line, the FPC 2 can be provided with a radio frequency transmission line, which is not limited here. Figure 3

[0151] When the user folds or opens the folding screen device, the shaft-penetrating FPC will be constantly bent or unfolded. In order to improve the reliability of the shaft-penetrating FPC, the radio frequency transmission line on the FPC can adopt an air gap scheme, that is, an air layer is arranged between the laminated layers. For example Figure 4 The radio frequency transmission line shown in the laminated structure includes three layers, L1, L2, and L3, and an air layer is arranged between the adjacent two layers to ensure that the radio frequency transmission line has a certain activity allowance between different layers in the case of bending. When the FPC is unfolded, the air layer between the adjacent upper and lower layers is relatively thick, and the distance between the lower layers is relatively large; when the FPC is bent, the air layer will be thinned due to the extrusion of the adjacent upper and lower layers, resulting in a decrease in the distance between the upper and lower layers of the air layer. When the folding screen device switches between the bent state and the unfolded state, if a strip line is used as the radio frequency transmission line, the thickness of the air layer changes greatly, which will cause impedance mismatch of the radio frequency transmission line, resulting in serious signal loss and affecting the transmission performance, thereby affecting the communication performance of the folding screen device.

[0152] ​In the embodiments provided in the present application, the terminal device selects different types of RF transmission lines to transmit RF signals according to the different working scenarios of the folding screen device. For example, when there is interference such as high-power transmission signals, a stripline RF transmission line with strong anti-interference ability can be selected to transmit RF signals; when there is no interference signal, a coplanar waveguide transmission line with stable impedance can be selected to transmit RF signals, thereby ensuring the communication performance of the folding screen device in various working scenarios.

[0153] In order to clearly describe the technical solution and implementation principle of the present application, the structures and characteristics of different types of radio frequency transmission lines are first described in detail.

[0154] Common RF transmission lines include coplanar waveguide transmission lines, strip lines and microstrip lines.

[0155] 1) Stripline

[0156] The stacked structure of the stripline can be seen in Figure 5 The schematic diagram of the cross section shown includes a three-layer structure L1, L2 and L3 from top to bottom. The up and down directions mentioned here are only used to express the concept of opposite directions and are not used to limit the structure and use direction of the transmission line. The two can be interchanged and can also be described as left and right. Figure 5 The upper and lower orientations are only examples.

[0157] The L1 layer, from top to bottom, includes a film (PI) layer, an adhesive layer, a copper clad layer, and a dielectric plate (MPI) layer. The PI and MPI layers are bonded together by an adhesive layer, also known as a cover layer.

[0158] The L2 layer, from top to bottom, includes the MPI layer, copper layer, adhesive layer, and PI layer. The L3 layer, from top to bottom, includes the MPI layer, copper layer, adhesive layer, and PI layer. An air layer is provided between the L1 and L2 layers, and an air layer is provided between the L2 and L3 layers.

[0159] The MPI layer provides physical support, and the material used can influence properties such as the elastic modulus and dielectric constant (DK). The adhesive and PI layers are used for corrosion protection. Typically, low-loss materials are chosen for these layers to minimize signal attenuation.

[0160] It should be noted that the copper layer is an example of a metal layer, and other metals may also be used. In the following description, a metal layer may also be used to replace the copper layer.

[0161] Typically, the signal lines of a stripline are distributed on the copper clad layer in layer L2, and the copper clad layers in layer L1 and L3 can serve as a reference ground. The copper clad layer serving as a reference ground can be solid copper (also known as full copper, as opposed to mesh copper). When a foldable screen device switches from an unfolded state to a bent state, both air layers are squeezed and deform uncontrollably. Because the reference grounds are distributed on both sides of the stripline's signal line, the distances between the reference grounds on both sides relative to the signal line change, causing a significant impedance change, resulting in severe impedance mismatch and signal loss, which in turn degrades insertion loss. Furthermore, because the metal reference grounds are distributed on both sides of the signal line, metal materials are more likely to break during bending than other coated materials. The more metal layers, the greater the probability of breakage, resulting in poor bending resistance. However, it is precisely because the copper clad layers in layer L1 and L3 wrap around the signal line from top to bottom, forming a shielding layer on both sides of the stripline's signal line that the stripline is not easily interfered with by external signals. Similarly, it is not easily interfered with by other external components.

[0162] 2) Coplanar waveguide transmission line

[0163] The stacked structure of the coplanar waveguide transmission line can be seen in Figure 6 The schematic diagram of the cross section of the transmission line shown includes three layers of structure L1, L2 and L3 from top to bottom. The above and below directions are only relative concepts and are not used to limit the direction of use of the structure of the transmission line. The above and below directions are interchangeable and can also be described as left and right. Figure 6 The upper and lower orientations are only examples.

[0164] The copper layer of the coplanar waveguide transmission line is located in the middle L2 layer. This copper layer is used to arrange signal lines and reference ground. In the L2 layer, the MPI layer and the PI layer are arranged above and below the copper layer respectively.

[0165] The L1 layer includes an MPI layer, an adhesive layer, and a PI layer. The L3 layer also includes an MPI layer, an adhesive layer, and a PI layer. An air layer is set between the L1 and L2 layers, and an air layer is set between the L2 and L3 layers.

[0166] In the coplanar waveguide transmission line using the airgap solution, although there are two layers of air, because the reference ground and the signal line are located in the same layer (i.e., the copper layer of L2), the position of the reference ground relative to the signal line does not change during the bending process. Therefore, the impedance change is not large, and impedance mismatch is not likely to occur. The signal loss is small, that is, the insertion loss deteriorates less. In addition, the coplanar waveguide transmission line has only one copper layer, and the probability of breakage is much lower than that of the stripline. Therefore, the coplanar waveguide transmission line has strong bending resistance and is not prone to physical damage. However, because the reference ground and the signal line are located in the same copper layer, there is no metal layer above or below, so it cannot shield the interference signal in the space, and the anti-interference ability is poor. Similarly, it is also easy to cause interference to the outside world.

[0167] 3) Microstrip line

[0168] The stacked structure of microstrip line can be seen in Figure 7 The schematic diagram of the cross section shown includes a three-layer structure L1, L2 and L3 from top to bottom. The up and down directions mentioned here are only used to express the concept of opposite directions and are not used to limit the structure and use direction of the transmission line. The two can be interchanged and can also be described as left and right. Figure 7 The up and down directions in FIG are only examples. Figure 7 As shown in Figure a, the L1 layer may include a PI layer, an adhesive layer, and an MPI layer from top to bottom. The L2 layer may include an MPI layer, a copper layer, an adhesive layer, and a PI layer from top to bottom. The L3 layer may include an MPI layer, a copper layer (or an EMI layer), an adhesive layer, and a PI layer from top to bottom. An air layer is set between the L1 and L2 layers, and an air layer is set between the L2 and L3 layers. The PI layer and the MPI layer are bonded together by an adhesive layer, and the PI layer is also called a cover lay. In some cases, electromagnetic interference (EMI) shielding materials may be used to replace the adhesive layer and the PI layer.

[0169] Typically, the signal lines of a microstrip line are distributed over the copper clad layer in layer L2, with only one layer in L1 or L3 having a copper clad layer as a reference ground. The copper clad layer serving as the reference ground can be solid copper. When a foldable screen device switches from an unfolded state to a folded state, both air layers are squeezed, causing uncontrollable deformation. Because the reference ground is distributed only on one side of the microstrip line's signal line, the distance of the reference ground on one side relative to the signal line changes. Compared to stripline, this results in less impedance fluctuation, less impedance mismatch, and less signal loss. Furthermore, because the metal reference ground is distributed on one side of the signal line, metal materials are more susceptible to fracture during bending than other coatings. The more metal layers, the greater the probability of fracture. Therefore, microstrip lines have greater bending resistance than stripline. Because the copper clad layers in L1 and L3 wrap around one side of the signal line, forming a shielding layer for the signal line side of the microstrip line, microstrip lines have weaker interference immunity than stripline lines. Similarly, they are less susceptible to interference from other external components.

[0170] In the laminated structure of the microstrip line, the copper layer where the signal line is distributed can be any layer among L1, L2 or L3, and the EMI layer can be used as the reference ground. Figure 7 Figure b shows the copper layer, where the signal lines are distributed, located on layer L3. The adhesive and PI layers in L3 are replaced by the EMI layer as the reference ground. In some embodiments, a 1:5 copper mesh (for example, a copper wire width / space width ratio of 1:5) can be used on the other side of the copper layer where the signal lines are distributed, away from the EMI layer. If EMI material is used as the reference ground, the impedance change during bending is minimal, with no impact on signal loss.

[0171] The following uses measured data from three RF transmission lines used in three different products to illustrate the differences in insertion loss (IL). See Table 1 for details.

[0172] Table 1

[0173]

[0174] As can be seen from Table 1 above, the insertion loss of the stripline at 1 GHz ranges from 1.2-1.7 dB in both the extended and bent states, with a fluctuation of 0.5 dB. At 3 GHz, the insertion loss ranges from 2.9-3.8 dB in both the extended and bent states, with a fluctuation of 0.9 dB. At 6 GHz, the insertion loss ranges from 4-6.6 dB in both the extended and bent states, with a fluctuation of 2.6 dB. Overall, the wide fluctuation range indicates a severe impedance mismatch.

[0175] The insertion loss of microstrip line and coplanar waveguide transmission line is stable, the low frequency insertion loss of microstrip line is larger, and the low frequency insertion loss of coplanar waveguide transmission line is smaller.

[0176] In order to reduce the insertion loss, people analyze the reasons affecting the insertion loss. The insertion loss of radio frequency transmission line includes conductor loss (a conductor, ac), dielectric loss (adielectric, ad), coupling loss, impedance discontinuity, and radiation loss, wherein the conductor loss and the dielectric loss are main loss paths. The formula of the stripline impedance Z0, ac and ad is as follows:

[0177] ε=dk+idf×dk.

[0178] Wherein, the transmission line width is W, dk is the dielectric constant, df is the dielectric loss tangent value, t is the transmission line thickness, f is the frequency, h is the dielectric thickness, c is the speed of light, and π is the circular constant.

[0179] Wherein, the smaller dk is, the better it is for high-speed signal transmission. Therefore, it can be known that ac and W are inversely proportional. When Z0 is constant, W and dk are inversely proportional. Both ac and dc are proportional to dk. Wherein, dk will affect W, ac and ad. Therefore, to reduce the low frequency insertion loss, W needs to be increased. W is also affected by dk, laminated structure and dielectric thickness, and ac and ac are affected by dk. Due to the high bending resistance requirement of the folding screen device, in addition to the requirement for the elastic modulus and tensile strength of the material itself, the air gap scheme of the laminated structure in the foregoing needs to be used. In the laminated structure, the air layer will affect W as a dielectric. Since the dk of the material itself (dielectric plate layer) is much larger than the dk of air, the effect of reducing the insertion loss by improving the material of the dielectric plate layer is not obvious.

[0180] In the same laminated structure, when dk is reduced by 0.2, W is increased by 0.003 mm, and the insertion loss of materials with different dk is shown in Table 2. Wherein, the dk of MPI is 3.5, and the dk of PTFE (filler type, divided into bending area and non-bending area) I is 3.0.

[0181] Table 2

[0182] Transmission line length 100 mm Insertion loss: dB@1GHz Insertion loss: dB@3GHz MPI -0.756 -1.56 PTFE -0.704 -1.44

[0183] As can be seen from Table 2, the insertion loss gain of reducing dk is: 0.05dB@1GHz, 0.12dB@3GHz,Insertion loss improvement is not significant. This is because, no matter how small the dk is, the presence of the air layer makes changing the material's dk have little effect on insertion loss. Ad is proportional to the square root of the frequency. Below the commonly used 6GHz frequency, due to the low signal frequency, the impact of dk on insertion loss is not significant. Only at very high frequencies does the dk contribution increase, so improving dk does not significantly improve insertion loss. Taking Table 3 as an example, the dk of ordinary PI (a coating with average dielectric loss) is 3.5, and the df is 0.0157 @ 10GHz; the Dk of low-loss PI (a coating with low dielectric loss) is 3.5, and the Df is 0.006 @ 10GHz. The insertion loss benefits of reducing dk are: 0.037dB @ 1GHz, 0.121dB @ 3GHz.

[0184] Table 3

[0185] Transmission line length 100 mm Insertion loss: dB@1GHz Insertion loss: dB@3GHz Ordinary PI -0.501 -1.088 Low-loss PI -0.464 -0.967

[0186] The above data shows that different stackup structures result in different calculated linewidths for RF transmission lines. Given the same dk and total thickness (the sum of the metal and dielectric thicknesses of the transmission line), the insertion loss of a stripline is lower than that of a coplanar waveguide, which in turn is lower than that of a microstrip. Furthermore, when the linewidth difference is on the order of micrometers, the benefit in insertion loss far outweighs the benefit of changing the dk value. Therefore, in the low-frequency range (below 10 GHz), optimizing the transmission line's dimensions and stackup structure significantly improves insertion loss compared to optimizing dk and df.

[0187] In some simulation examples, when the coplanar waveguide transmission line and stripline are of the same length, for example, approximately 70 mm, the coplanar waveguide transmission line exhibits insertion loss that is 0.32 dB greater at 1 GHz and 0.64 dB greater at 3 GHz than the stripline. In the unfolded and bent states, the distance between the reference ground and the signal line fluctuates more complexly, leading to severe impedance mismatch. For a stripline of approximately 70 mm in length, the insertion loss in the bent state increases by 0.5 dB at 700 MHz and by 0.7-0.9 dB at 1 GHz compared to the unfolded state, resulting in a decrease in insertion loss of 0.5 dB at 700 MHz and 0.7-0.9 dB at 1 GHz. Furthermore, the degradation in insertion loss becomes more pronounced with increasing frequency.

[0188] In terms of anti-interference capability, in one example, the simulation curves of the isolation between the coplanar waveguide transmission line and the stripline and the power line can be seen in Figure 8 As shown, Figure 8 In this paper, the S parameter is used to characterize the isolation between the two and describe the anti-interference capability. The smaller the S parameter, the higher the isolation, that is, the stronger the anti-interference capability; the larger the S parameter, the lower the isolation, that is, the weaker the anti-interference capability. Figure 8Curve 1 and curve 2 in FIG. 1 are isolation curves between the coplanar waveguide transmission line and the power line. Figure 8 Curve 3 and curve 4 in FIG. 1 are isolation curves between the stripline and the power line. From the curves in FIG. 1, it can be seen that the isolation between the stripline and the power line is 20-40 dB lower than the isolation between the coplanar waveguide transmission line and the power line, which indicates that the anti-interference capability of the stripline is obviously stronger than that of the coplanar waveguide transmission line. Figure 8

[0189] From the impedance matching, reference can be made to the impedance curve diagram shown in FIG. 2. Figure 9 a graph in FIG. 2 is an impedance curve of the coplanar waveguide transmission line in the unfolded and folded states. It can be seen that the impedance curves of the coplanar waveguide transmission line in the unfolded and folded states almost coincide, which indicates that the impedance changes little in the unfolded and folded states. Moreover, the impedance curves are convergent, and are close to the position of fifty ohms, which indicates that the impedance matching degree is high in the full frequency band. Figure 9 b graph in FIG. 2 is an impedance curve of the stripline (the upper and lower surfaces are real copper as reference ground) in the unfolded and folded states. It can be seen that the impedance curves of the stripline in the unfolded and folded states deviate greatly. Moreover, the impedance curves are divergent, and are far from the position of fifty ohms, which indicates that the impedance matching degree is low in the full frequency band. Figure 9

[0190] In summary, the characteristics of the three different radio frequency transmission lines are summarized in Table 4 below for concise expression.

[0191] Table 4

[0192]

[0193] From Table 4, it can be seen that, in addition to the poor anti-interference capability, the coplanar waveguide transmission line has good performances such as insertion loss, folding performance and impedance fluctuation. In addition to the strong anti-interference capability, the stripline has poor folding performance and impedance fluctuation, and the insertion loss is second to the coplanar waveguide transmission line. The anti-interference capability, folding characteristics and impedance fluctuation of the microstrip line are between those of the coplanar waveguide transmission line, but the insertion loss of the microstrip line is large. It should be noted that the case of large impedance fluctuation is the case of serious impedance mismatch, which will cause the insertion loss to deteriorate and become large. Conversely, the case of small impedance fluctuation indicates that the impedance mismatch is not obvious, and will not cause the insertion loss to change too much.

[0194] ​​Based on the characteristics of different RF transmission lines shown in Table 4 above, an embodiment of the present application proposes a method for selecting an appropriate target transmission line based on the working scenario. That is, in a scenario where interference exists, a stripline with strong anti-interference capabilities can be selected to enhance the anti-interference capability; and in the absence of interference, other RF transmission lines with good transmission performance can be selected to improve transmission performance and thus improve communication quality. The method provided in this application can be executed by a chip, a processor, or a terminal device. Hereinafter, the method will be described using the terminal device as the execution subject.

[0195] Figure 10 A flowchart of a method for determining a target transmission line provided in an embodiment of the present application includes:

[0196] S1001: Acquire a current working scenario, where the current working scenario is used to indicate whether a radio frequency signal is interfered with and / or whether the radio frequency signal causes interference.

[0197] The method can be applied to a transmission line assembly, which may include multiple candidate transmission lines with different stacked structures. The multiple candidate transmission lines can be switched under the action of a control signal to transmit radio frequency signals.

[0198] Specifically, the terminal device may obtain a current working scenario, which is used to characterize whether there is interference between the radio frequency signal transmitted by the radio frequency transmission line and other signals, such as whether the radio frequency signal interferes with other signals or whether the radio frequency signal is interfered with by other signals.

[0199] Optionally, the transmission line assembly may include at least two radio frequency transmission lines having a laminated structure. Figure 11 The figure shows a radio frequency transmission line including two laminated structures, a stripline and a coplanar waveguide transmission line. The stripline and the coplanar waveguide transmission line can be arranged in parallel or in a stacked arrangement. Figure 11 It should be noted that the two ends of the stripline and coplanar waveguide transmission lines in the transmission line assembly can be connected to switch 1 and switch 2 respectively, and when switch 1 and switch 2 are selected, the RF chip and the antenna are connected. Optionally, the two ends of the stripline and coplanar waveguide transmission lines in the transmission line assembly can also be connected to switch 1 and switch 2 respectively through a board to board connector (BTB). Figure 11 The stripline and coplanar waveguide transmission lines are shown as examples of separate BTBs, but they can also share a single BTB, which is not limited in this embodiment of the present application. The switches 1 and 2 can be controlled by control signals output by a control chip, which can be a processor or other chip.

[0200] Optionally, Figure 11The switches 1 and 2 in the figure may be independently set switches or switches shared with the antenna tuning switch, which is not limited in the embodiment of the present application.

[0201] Optionally, an in-position detection circuit may be provided to detect the integrity of the RF transmission line, that is, whether there is physical damage. If the RF transmission line is physically damaged, resulting in a blocked RF transmission line and inability to transmit RF signals, the in-position detection circuit can detect that the RF transmission line is incomplete. If there is no physical damage, indicating that the RF transmission line is intact and can transmit RF signals, the corresponding in-position detection circuit can detect that the RF transmission line is intact. Figure 11 The presence detection circuit 1 and the presence detection circuit 2 are used to detect whether the coplanar waveguide transmission line and the strip line are complete, respectively.

[0202] S1002: Determine a target transmission line from a plurality of candidate transmission lines according to the current working scenario to transmit the radio frequency signal.

[0203] When an RF signal interferes with other signals, or is interfered with by other signals, the terminal device can select a transmission line with better shielding performance from among multiple candidate transmission lines as the target transmission line for RF signal transmission. If the RF signal does not interfere with other signals and is not interfered with by other signals, the terminal device can select the RF transmission line with better transmission performance as the target transmission line for RF signal transmission, regardless of the shielding performance of the RF transmission line.

[0204] In the above method, the terminal device can select a target transmission line that matches the current working scenario from multiple candidate transmission lines to transmit the RF signal based on the current working scenario. When the interference situation in the current working scenario changes, the selected target transmission line can also change accordingly. Compared with the traditional method of using a single RF transmission line, the method of selecting a target transmission line provided by the present application can flexibly switch the type of target transmission line for transmitting RF signals, thereby maximizing the transmission performance of the selected RF transmission line and thereby ensuring the transmission quality of the RF signal.

[0205] Optionally, the multiple transmission lines to be selected in the above-mentioned transmission line assembly can be a first transmission line and a second transmission line. When the first transmission line is a stripline, the second transmission line is a coplanar waveguide transmission line; or, when the first transmission line is a stripline, the second transmission line is a microstrip line; or, when the first transmission line is a microstrip line, the second transmission line is a coplanar waveguide transmission line. That is, the above-mentioned first transmission line and the second transmission line are radio frequency transmission lines with different stacked structures, which can be used to switch in different working scenarios to ensure transmission performance. In summary, the first transmission line has stronger anti-interference ability than the second transmission line, the impedance fluctuation of the second transmission line is smaller than that of the first transmission line, and the bending performance of the second transmission line is better than that of the first transmission line.

[0206] The terminal device may determine the first transmission line as the target transmission line when the current working scenario is an interference scenario or an anti-interference scenario, and determine the second transmission line as the target transmission line when the current working scenario is neither an interference scenario nor an anti-interference scenario. The interference scenario is a scenario where the RF signal is interfered with, and the anti-interference scenario is a scenario where the RF signal causes interference.

[0207] It should be noted that the terminal device can determine whether the current working scenario is an interference scenario by judging the reference signal receiving power (RSRP) and the bit error rate. If the RSRP is very high and the bit error rate is also high, it is determined to be in an interference scenario. The terminal device can also judge based on RSRP and signal-to-noise ratio (SNR). If the RSRP is very high but the signal-to-noise ratio is low, it is determined to be in an interference scenario. For example, if the difference between RSRP and SNR is greater than -120dB, it means that the difference between the two is large, and it is in an interference scenario. In an interference scenario, the RF signal is interfered with, resulting in a decrease in communication performance, such as a serious deterioration in receiving sensitivity.

[0208] The terminal device may determine whether the current working scenario is an anti-interference scenario by using a preset anti-interference combination table. Table 5 is an example of an anti-interference combination table, which shows three anti-interference scenarios.

[0209] Table 5

[0210] Serial number frequency band Antenna number Distractors Power threshold (dBm) 1 B1 1 Main camera 20 2 B41 3 Secondary camera 17 3 N78 5 Screen 21

[0211] In Table 5, "Frequency Band" indicates the current cellular frequency band, representing the frequency of the transmitted RF signal; "Antenna Number" is the antenna identifier, identifying the antenna through which the RF signal is radiated; "Interference Term" indicates the object being interfered with by the RF signal; and "Power Threshold" indicates the minimum power level at which the RF signal causes interference. In Table 5, the first combination, when cellular communication is in the B1 frequency band, using antenna 1 for transmission, and with a transmit power greater than 20dBm, will cause interference to the main camera, such as display distortion. The second combination, when cellular communication is in the B41 frequency band, using antenna 3 for transmission, and with a transmit power greater than 17dBm, will cause interference to the secondary camera, such as unclear images. The third combination, when cellular communication is in the N78 frequency band, using antenna 5 for transmission, and with a transmit power greater than 21dBm, will cause interference to the screen, such as display distortion. Of course, in each of the above combinations, if one of the conditions is changed, the interference may disappear or weaken, and the terminal device is no longer in an anti-interference scenario. In this case, there is no need to consider the anti-interference performance of the RF transmission line, and priority can be given to the transmission performance of the RF transmission line. The combination shown in Table 5 is an example. The actual combination and the number of combinations may also be adjusted with factors such as the increase in the number of antennas, the adjustment of antenna positions, the change of other modules, the overall structure of the terminal device, and the number and type of cameras. Optionally, the above Table 5 can also be replaced and updated according to the actual interference situation, and the embodiments of the present application do not limit this. In the anti-interference scenario, the RF signal interferes with other components. When interfering with the camera, it will cause abnormal shooting. If it interferes with the screen, it will cause abnormal screen display, affecting the user experience.

[0212] Optionally, the multiple transmission lines to be selected in the transmission line assembly may be a first transmission line and a second transmission line. If the current operating scenario is an interference scenario or an anti-interference scenario, the first transmission line with strong anti-interference performance may be selected as the target transmission line; if the current operating scenario is neither an interference scenario nor an anti-interference scenario, the second transmission line with good transmission performance may be selected as the target transmission line.

[0213] Figure 12 This is a flow chart of a method for determining a target transmission line provided in an embodiment of the present application. Figure 12 In the example, the first transmission line is a stripline and the second transmission line is a coplanar waveguide transmission line. The method includes:

[0214] S1201: Determine whether the current working scene is an anti-interference scene. If so, execute S1202A; if not, execute S1202B.

[0215] S1202A. Determine that the target transmission line is a stripline.

[0216] S1202B: Determine whether the current working scene is an interference scene. If it is an interference scene, execute S1202A; if it is not an interference scene, execute S1203.

[0217] S1203: Determine that the target transmission line is a coplanar waveguide transmission line.

[0218] Figure 12 In the embodiment shown, in an interference scenario or an anti-interference scenario, priority is given to interference factors, and the terminal device can select a stripline with strong anti-interference capability to transmit the RF signal, which can avoid the performance degradation of the terminal device caused by interference and improve the user experience; when it is neither in an interference scenario nor in an anti-interference scenario, priority is given to transmission performance, and the terminal device can select a coplanar waveguide transmission line with weak anti-interference capability but small impedance fluctuation and strong anti-bending capability to transmit the RF signal, which reduces the loss of the RF signal, ensures sufficient transmission power, and improves the communication quality.

[0219] Optionally, in the above Figure 12 In the embodiment shown, the order of judging whether it is an interference scenario and an anti-interference scenario can be interchanged. As long as there is any interference scenario or anti-interference scenario, the strip line is used to transmit the radio frequency signal; only when there is no interference scenario and no anti-interference scenario, the coplanar waveguide transmission line is used to transmit the radio frequency signal. The implementation principle and beneficial effects of this method are the same as those of the embodiment shown in FIG. Figure 12 The embodiments are the same as those of the present invention and will not be described again here.

[0220] Optionally, Figure 12 In the embodiment shown, the stripline can also be replaced by a microstrip line. Since the anti-interference performance of the microstrip line is stronger than that of the coplanar waveguide transmission line, it can also play an anti-interference effect to a certain extent and improve the communication quality; and the microstrip line has a stronger anti-bending ability than the stripline, which improves the reliability, and the cost of the microstrip line is lower than that of the stripline.

[0221] Optionally, Figure 12 In the embodiment shown, the coplanar waveguide transmission line can also be replaced by a microstrip line. Since the impedance fluctuation of the microstrip line is smaller than that of the stripline, the deterioration of the transmission performance in the unfolded and bent states can also be reduced, thereby ensuring the communication quality.

[0222] In the above Figure 12 Based on the embodiment shown, the terminal device can also detect whether the RF transmission line is intact during the process of determining the target transmission line, so as to avoid switching to a damaged RF transmission line and causing abnormal signal transmission. Figure 13 Shown, including:

[0223] S1301: Determine whether the stripline is complete. If so, execute S1302A; if not, execute S1302B.

[0224] S1302A: Determine whether the current working scene is an anti-interference scene. If so, execute S1303A; if not, execute S1303B.

[0225] S1302B. Determine that the target transmission line is a coplanar waveguide transmission line.

[0226] S1303A. Determine that the target transmission line is a stripline.

[0227] S1303B: Determine whether the current working scene is an interference scene. If so, execute S1303A; if not, execute S1304.

[0228] S1304: Determine whether the coplanar waveguide transmission line is normal. If so, execute S1303A; if not, execute S1302B.

[0229] Figure 13In the embodiment shown, the terminal device first determines whether the stripline is complete. If the stripline is incomplete, it means that the stripline may be physically damaged and cannot transmit RF signals normally. Generally, since the coplanar waveguide transmission line has stronger anti-bending ability than the stripline and has a lower failure rate, directly switching to the coplanar waveguide transmission line when the stripline is damaged can save subsequent judgment processes and improve the switching efficiency of the RF transmission line. If the stripline is complete, it can continue to determine whether the terminal device is in an anti-interference scenario. If it is in an anti-interference scenario, the interference factor is given priority. The terminal device can select a stripline with strong anti-interference ability to transmit the RF signal, which can avoid the performance degradation of the terminal device caused by interference and improve the user experience. If it is not in an anti-interference scenario, the terminal device can continue to determine whether it is in an interference scenario. When it is in an interference scenario, the interference factor is also given priority. The terminal device selects a stripline with strong anti-interference ability to transmit the RF signal, which can avoid the performance degradation of the terminal device caused by interference and improve the user experience. If the terminal device is not in an interference scenario, the transmission performance is given priority. The terminal device can select a coplanar waveguide transmission line with weak anti-interference ability but small impedance fluctuation and strong anti-bending ability as the target transmission line to transmit the RF signal, which reduces the loss of the RF signal, ensures sufficient transmission power, and improves the communication quality. Optionally, before selecting the coplanar waveguide transmission line as the target transmission line, it can also be determined whether the coplanar waveguide transmission line is complete. If it is complete, it can be switched to the coplanar waveguide transmission line; if it is incomplete, it means that the coplanar waveguide transmission line may be physically damaged and cannot transmit the RF signal normally. Then, the stripline is continued to be used as the target transmission line to transmit the RF signal to ensure that the signal path is normal. In addition, the setting of two RF transmission lines is equivalent to adding an alternative RF transmission line. If one of them is damaged, that is, when the in-position detection circuit detects that any one of them is incomplete, it switches to the other to transmit the RF signal, avoiding the situation where the RF transmission line cannot transmit the RF signal after being damaged, thereby improving the reliability of the terminal device.

[0230] Optionally, in the above Figure 13 In the embodiment shown, the order of judging whether it is an interference scenario and an anti-interference scenario can be interchanged. As long as there is any interference scenario or anti-interference scenario, the strip line is used to transmit the radio frequency signal; only when there is no interference scenario and no anti-interference scenario, the coplanar waveguide transmission line is used to transmit the radio frequency signal. The implementation principle and beneficial effects of this method are the same as those of the embodiment shown in FIG. Figure 13 The embodiments are the same as those of the present invention and will not be described again here.

[0231] Optionally, Figure 13In the embodiment shown, the stripline can also be replaced by a microstrip line. Since the anti-interference performance of the microstrip line is stronger than that of the coplanar waveguide transmission line, it can also play an anti-interference effect to a certain extent and improve the communication quality; and the microstrip line has a stronger anti-bending ability than the stripline, which improves the reliability, and the cost of the microstrip line is lower than that of the stripline.

[0232] Optionally, Figure 13 In the embodiment shown, the coplanar waveguide transmission line can also be replaced by a microstrip line. Since the impedance fluctuation of the microstrip line is smaller than that of the stripline, the deterioration of the transmission performance in the unfolded and bent states can also be reduced, thereby ensuring the communication quality.

[0233] In some cases, if the terminal equipment operates in a time division system, the RF signal transmitted by the RF transmission line is a time division signal, such as a signal in the TDD frequency band of LTE or the frequency band of TD-CDMA, and the RF transmission line can be switched by asynchronous transmission and reception. Since in the interference scenario, it is the received signal that is interfered with, and in the anti-interference scenario, it is the transmitted signal that interferes with other components, in the interference scenario, the received signal can select an RF transmission line with strong anti-interference capability, and in the anti-interference scenario, the transmitted signal can select an RF transmission line with strong anti-interference capability. In other cases, an RF transmission line with good transmission performance can be selected. Therefore, while avoiding interference, the transmission performance can be guaranteed to the greatest extent, as follows:

[0234] If the current working scenario is an interference scenario and an anti-interference scenario, there is no need to distinguish between the transmitting state and the receiving state. The terminal device selects the first transmission line with strong anti-interference ability as the target transmission line to ensure that neither the transmitting nor the receiving signal is interfered with, thereby ensuring the communication quality.

[0235] If the current working scenario is an interference scenario but not an anti-interference scenario, it means that the transmitted signal will not interfere with other components. In the transmitting state, the terminal device can select the second transmission line with good transmission performance as the target transmission line to transmit the transmitted signal to avoid excessive insertion loss and ensure sufficient transmission power. In the receiving state, it is necessary to consider avoiding interference. The first transmission line with strong anti-interference ability can be selected as the target transmission line to ensure that the received signal is not interfered with and ensure communication quality.

[0236] If the current working scenario is not an interference scenario but is in an anti-interference scenario, it means that the transmitted signal will interfere with other components. In the transmitting state, the terminal device can select the first transmission line with strong anti-interference ability as the target transmission line to ensure that the transmitted signal does not interfere with other components and achieve a balanced performance of the terminal device as a whole. In the receiving state, since it is not an interference scenario and there is no need to consider the possibility of interference, the second transmission line with good transmission performance can be selected to ensure transmission performance.

[0237] If the current working scenario is neither an interference scenario nor an anti-interference scenario, and the influence of interference does not need to be considered, the second transmission line with good transmission performance is directly selected as the target transmission line.

[0238] Optionally, a mode in which both the transmitting state and the receiving state use RF transmission lines with strong anti-interference capabilities can be called a high communication reliability mode; a mode in which the transmitting state gives priority to using RF transmission lines with good transmission performance, and the receiving state gives priority to using RF transmission lines with strong anti-interference capabilities can be called an interference mode; a mode in which the transmitting state gives priority to using RF transmission lines with strong anti-interference capabilities, and the receiving state gives priority to using RF transmission lines with good transmission performance can be called an anti-interference mode; a mode in which both the transmitting state and the receiving state use RF transmission lines with good transmission performance can be called a high performance mode.

[0239] Figure 14 This is a flow chart of a method for determining a target transmission line provided in an embodiment of the present application. Figure 14 In the example, the first transmission line is a stripline and the second transmission line is a coplanar waveguide transmission line. The method includes:

[0240] S1401: Determine whether the current working scene is an anti-interference scene. If so, execute S1402A; if not, execute S1402B.

[0241] S1402A: Determine whether the current working scene is an interference scene. If so, execute S1403A; if not, execute S1403B.

[0242] S1403A: Determine that the target transmission line is a stripline, that is, enter a high communication reliability mode.

[0243] Since there is interference in both the transmitting and receiving states, choosing a stripline with good transmission performance can prioritize insertion loss and avoid loss of transmitting and receiving signals, so that the transmitted signal has sufficient power and the receiving sensitivity is also high.

[0244] S1403B: In the transmitting state, determine that the target transmission line is a coplanar waveguide transmission line, and in the receiving state, determine that the target transmission line is a stripline. That is, enter the anti-interference mode.

[0245] Since there is interference in the receiving state, it is recommended to select a stripline with strong anti-interference ability in the receiving state to prevent the received signal from being interfered with and ensure that the received signal can be demodulated smoothly. As the transmitting signal itself will not interfere with other components, it is recommended to select a stripline with good transmission performance, which can prioritize insertion loss, avoid loss of the transmitting signal, and ensure that the transmitting signal has sufficient power.

[0246] Optionally, Figure 14 The illustrated embodiment may also include:

[0247] S1402B. Determine whether the current working scene is an interference scene; if so, execute S1404A; if not, execute S1404B.

[0248] S1404A: In the transmitting state, the target transmission line is determined to be a coplanar waveguide transmission line. In the receiving state, the target transmission line is determined to be a stripline transmission line. This means that the interference mode is entered. Since the received signal is not subject to interference, a stripline with good transmission performance is selected in the receiving state. This prioritizes insertion loss, avoids received signal loss, and ensures receiving sensitivity.

[0249] S1404B: Determine that the target transmission line is a coplanar waveguide transmission line. This means entering high-performance mode. Interference is not a concern at this point, and both transmit and receive states prioritize transmission performance, ensuring sufficient reflected power and high sensitivity.

[0250] Figure 14 In the illustrated embodiment, since in the interference scenario, the received signal is interfered with, while in the anti-interference scenario, the transmitted signal interferes with other components, the received signal can select a radio frequency transmission line with strong anti-interference capabilities in the interference scenario, while the transmitted signal can select a radio frequency transmission line with strong anti-interference capabilities in the anti-interference scenario. In other cases, a radio frequency transmission line with good transmission performance can be selected. This method of switching radio frequency transmission lines using asynchronous transmission and reception can avoid interference while maximizing transmission performance.

[0251] Optionally, in the above Figure 14 In the embodiment shown, the order of judging whether it is an interference scenario and an anti-interference scenario can be interchanged. As long as it is an interference scenario, the receiving signal selects a stripline with strong anti-interference ability, and in the anti-interference scenario, the transmitting signal selects a stripline with strong anti-interference ability. In other cases, the coplanar waveguide transmission line with good transmission performance is selected. The implementation principle and beneficial effects of this method are similar to those of Figure 14 The embodiments are the same as those of FIG. , and will not be described again here.

[0252] Optionally, Figure 4 In the embodiment shown, the stripline can also be replaced by a microstrip line. Since the anti-interference performance of the microstrip line is stronger than that of the coplanar waveguide transmission line, it can also play an anti-interference effect to a certain extent and improve the communication quality; and the microstrip line has a stronger anti-bending ability than the stripline, which improves the reliability, and the cost of the microstrip line is lower than that of the stripline.

[0253] Optionally, Figure 14 In the embodiment shown, the coplanar waveguide transmission line can also be replaced by a microstrip line. Since the impedance fluctuation of the microstrip line is smaller than that of the stripline, the deterioration of the transmission performance in the unfolded and bent states can also be reduced, thereby ensuring the communication quality.

[0254] In the above Figure 14On the basis of the embodiment shown, the terminal device can also detect whether the radio frequency transmission line is complete in the process of determining the target transmission line, so as to avoid switching to a damaged radio frequency transmission line and causing abnormal signal transmission. For details, please refer to Figure 15 As shown, comprising:

[0255] S1400A, determining whether the stripline is complete. If yes, performing S1400B; if no, performing S14004B.

[0256] S1400B, determining whether the coplanar waveguide transmission line is complete. If yes, performing S1401; if no, performing SS1403A.

[0257] S1401, determining whether the current working scenario is an anti-interference scenario. If yes, performing S1402A; if no, performing S1402B.

[0258] S1402A, determining whether the current working scenario is an interference scenario. If yes, performing S1403A; if no, performing S1403B.

[0259] S1403A, determining that the target transmission line is a stripline. That is, entering a high communication reliability mode.

[0260] S1403B, determining that the target transmission line is a coplanar waveguide transmission line in a transmitting state, and determining that the target transmission line is a stripline in a receiving state. That is, entering an anti-interference mode.

[0261] S1402B, determining whether the current working scenario is an interference scenario; if yes, performing S1404A; if no, performing S1404B.

[0262] S1404A, determining that the target transmission line is a coplanar waveguide transmission line in a transmitting state, and determining that the target transmission line is a stripline in a receiving state. That is, entering an interference mode. Since the received signal will not be interfered, the stripline with good transmission performance is selected in the receiving state, so as to preferentially ensure the insertion loss, avoid the loss of the received signal, and ensure the receiving sensitivity.

[0263] S1404B, determining that the target transmission line is a coplanar waveguide transmission line. That is, entering a high performance mode. At this time, the interference situation does not need to be considered, and the transmission and reception states are both prioritized to ensure sufficient reflected power and high sensitivity.

[0264] Figure 15 For the implementation principles and beneficial effects of the embodiment shown, please refer to Figure 14The description of the embodiment will not be repeated here. It should be noted that the terminal device determines whether the stripline is complete at the beginning. If the stripline is incomplete, it means that the stripline may be physically damaged and cannot transmit the RF signal normally. At this time, the coplanar waveguide transmission line is selected for transmission. Generally, since the coplanar waveguide transmission line has stronger anti-bending ability than the stripline and a lower failure rate, directly switching to the coplanar waveguide transmission line when the stripline is damaged can save subsequent judgment processes and improve the switching efficiency of the RF transmission line. If the stripline is complete, it is possible to continue to determine whether the terminal device is in an anti-interference scenario and execute subsequent processes.

[0265] In summary, if an alternative RF transmission line is required, a switch must be added, which introduces losses. Therefore, the impact of the switch on insertion loss must be calculated. In some embodiments, the difference in insertion loss for the same length can be seen in Table 6. The insertion loss benefit in Table 6 represents the insertion loss benefit of this solution compared to using stripline alone. A negative insertion loss benefit indicates a reduction in insertion loss, indicating improvement.

[0266] Table 6

[0267] project 1GHz insertion loss (dB) 3GHz insertion loss (dB) 6GHz insertion loss (dB) Coplanar waveguide transmission line 0.525 1.155 1.71 Switch insertion loss 0.3 0.45 0.85 Stripline switch insertion loss 1.425 2.2 (estimated) 3.1 (estimated) Insertion loss profit -0.6 -0.59 -0.54

[0268] Taking the insertion loss benefit at 1GHz as an example, if stripline transmission line is used alone, the insertion loss is 1.425dB. When coplanar waveguide transmission line is used, the insertion loss of the switch is 0.525 + 0.3 = 0.825dB, which is 1.425 - 0.825 = 0.6dB less than using stripline alone. Table 6 shows that even if stripline transmission line with higher insertion loss is introduced as an alternative, the insertion loss of the coplanar waveguide transmission line combined with the added switch can still be improved by approximately 0.6dB compared to the stripline transmission line, which is acceptable.

[0269] Figure 15 In the embodiment of the present invention, the direction of the receiving and transmitting signals in different modes can be referred to Figure 16 As shown, solid arrow Indicates the path and direction of the receiving and sending signals in high-performance mode; dotted arrows Indicates the path and direction of the receiving and transmitting signals in the interference mode; the dotted arrow Indicates the path and direction of the receiving and transmitting signals in the anti-interference mode; dotted line Indicates the channel and direction of the receiving and transmitting signals in high reliability mode. The direction from the antenna to the RF chip is the direction of the received signal, and the direction from the RF chip to the antenna is the direction of the transmitted signal.

[0270] Optionally, if the stripline is intact, the terminal device can further determine whether the coplanar waveguide transmission line is intact. If the coplanar waveguide transmission line is incomplete, it indicates that the coplanar waveguide transmission line may be physically damaged and cannot transmit RF signals normally. In the case of the coplanar waveguide transmission line, directly switching to the stripline can save subsequent judgment processes and improve the switching efficiency of the RF transmission line. If the coplanar waveguide transmission line is intact, it can continue to determine whether the terminal device is in an anti-interference scenario and execute subsequent processes.

[0271] Optionally, Figure 15 In the embodiment shown, the stripline can also be replaced by a microstrip line. Since the anti-interference performance of the microstrip line is stronger than that of the coplanar waveguide transmission line, it can also play an anti-interference effect to a certain extent and improve the communication quality; and the microstrip line has a stronger anti-bending ability than the stripline, which improves the reliability, and the cost of the microstrip line is lower than that of the stripline.

[0272] Optionally, Figure 15 In the embodiment shown, the coplanar waveguide transmission line can also be replaced by a microstrip line. Since the impedance fluctuation of the microstrip line is smaller than that of the stripline, the deterioration of the transmission performance in the unfolded and bent states can also be reduced, thereby ensuring the communication quality.

[0273] In some scenarios, if the through-axis FPC needs to realize the transmission of two RF signals at the same time, such as the dual-transmit and dual-receive scenario, the structure of the transmission line component can be seen in Figure 17 shown. Figure 17 In the example, the number of the multiple transmission lines to be selected is three. Furthermore, one of the transmission lines is a coplanar waveguide transmission line, and the other two are striplines. Alternatively, the two striplines can be integrated together with separate transmission paths, or they can be independent striplines with separate carriers such as connecting media. This embodiment of the present application is not limited to this. Figure 17 In the example, the two RF signals that need to operate simultaneously may include a first RF signal and a second RF signal, where antenna 1 is used to transmit and receive the first RF signal, and antenna 2 is used to transmit and receive the second RF signal. It should be noted that the transmission priority of the first RF signal is higher than the transmission priority of the second RF signal. For example, the first RF signal may be a cellular mobile communication signal, and the second RF signal may be a Bluetooth signal; or the first RF signal may be a signal from the primary SIM card on the terminal device, and the second RF signal may be a signal from the secondary SIM card on the terminal device. Figure 17 The switches 1 and 2 in the figure can be double-pole triple-throw switches, or switches integrated with the antenna tuning switch, as long as they can achieve transmission line gating.

[0274] When two RF signals are operating simultaneously, the terminal device can determine which RF signal has the highest priority by querying a preset priority table and select the one with the higher priority as the primary RF signal. At the same time, the reliability and performance of the transmission of the first RF signal need to be prioritized.

[0275] above Figure 17 In the example shown, the first and third transmission lines are striplines, and the second transmission line is a coplanar waveguide transmission line. In other embodiments, the second transmission line can be replaced by a microstrip line, or the first and third transmission lines can be replaced by microstrip lines.

[0276] Specifically, when the current working scenario of the first RF signal is neither an interference scenario nor an anti-interference scenario, it indicates that the anti-interference requirement of the first RF signal is not strong at this time, and the transmission performance of the signal with a high transmission priority is given priority. The terminal device can select the second transmission line with good transmission performance as the target transmission line of the first RF signal to transmit the first RF signal, ensuring that the transmission power of the first RF signal with a high transmission priority is large enough and the receiving sensitivity is high. Afterwards, the terminal device selects the first transmission line or the third transmission line as the target transmission line of the second RF signal to transmit the second RF signal. It can select one of the first transmission line or the third transmission line, or select a complete one without physical damage to transmit the second RF signal.

[0277] It should be noted that the integrity of the RF transmission line can be detected by an in-situ detection circuit. The specific implementation principle can be found in Figure 11 The description in , will not be repeated here.

[0278] When the current working scenario of the first RF signal is an interference scenario or an anti-interference scenario. If the current working scenario of the second RF signal is neither an interference scenario nor an anti-interference scenario, and both the first transmission line and the third transmission line are incomplete, that is, the first transmission line and the third transmission line may be physically damaged and cannot transmit signals normally, then it is necessary to give priority to ensuring the transmission path of the first RF signal with a high transmission priority. Therefore, the target transmission line of the first RF signal is determined to be the second transmission line to transmit the first RF signal, ensuring the normal use of the high-priority signal. Optionally, the terminal device can also determine any one of the first transmission line or the third transmission line as the target transmission line corresponding to the second RF signal. Even if the second RF signal cannot be transmitted normally, the control logic confusion of the second RF signal can be avoided.

[0279] When the current working scenario of the first RF signal is an interference scenario or an anti-interference scenario. If the current working scenario of the second RF signal is neither an interference scenario nor an anti-interference scenario, if the first transmission line and the third transmission line are not both complete, and there may be one or two complete situations, then at this time, priority is given to the effect of transmitting the first RF signal with high priority, and the complete one of the first transmission line and the third transmission line with strong anti-interference ability is used to transmit the first RF signal, and priority is given to ensuring that the first RF signal will not be interfered with by other signals or interfere with other components. Afterwards, the terminal device selects a complete one from the first transmission line and the third transmission line to transmit the second RF signal. If both the first transmission line and the third transmission line are complete, select one of them to transmit the second RF signal to ensure the normal transmission of the second RF signal.

[0280] When the current working scenario of the first RF signal is an interference scenario or an anti-interference scenario, and the current working scenario of the second RF signal is both an interference scenario or an anti-interference scenario, if the first transmission line and the third transmission line are both intact, the interference problem is given priority, and the first transmission line and the third transmission line with strong anti-interference capabilities are used as the target transmission lines corresponding to the first RF signal and the second RF signal to transmit the first RF signal and the second RF signal. Optionally, the first transmission line can be selected to transmit the first RF signal, and the third transmission line can be selected to transmit the second RF signal; or the first transmission line can be selected to transmit the second RF signal, and the third transmission line can be selected to transmit the first RF signal. This embodiment of the present application does not limit this.

[0281] When the current operating scenario of the first RF signal is an interference scenario or an anti-interference scenario, and the current operating scenario of the second RF signal is both an interference scenario or an anti-interference scenario, if both the first transmission line and the third transmission line are incomplete, and only the second transmission line remains intact, the terminal device can select the complete second transmission line to prioritize the normal use of the first RF signal with a higher transmission priority. Optionally, the terminal device can also determine either the first transmission line or the third transmission line as the target transmission line corresponding to the second RF signal. Even if the second RF signal cannot be transmitted normally, confusion in the control logic of the second RF signal can be avoided.

[0282] When the current working scene of the first radio frequency signal is an interference scene or an anti-interference scene, and the current working scene of the second radio frequency signal is also an interference scene or an anti-interference scene, if the first transmission line and the third transmission line are not all damaged, for example, the first transmission line is complete and the third transmission line is not complete, the terminal device can select the first transmission line as the target transmission line corresponding to the first radio frequency signal to transmit the first radio frequency signal, so as to preferentially ensure that the first radio frequency signal with high transmission priority will not be interfered or disturbed. The terminal device can also select the second transmission line to transmit the second radio frequency signal, so as to ensure normal transmission of the second radio frequency signal. If the first transmission line is not complete and the third transmission line is complete, the terminal device can select the third transmission line as the target transmission line corresponding to the first radio frequency signal to transmit the first radio frequency signal, so as to preferentially ensure that the first radio frequency signal with high transmission priority will not be interfered or disturbed. The terminal device can also select the second transmission line to transmit the second radio frequency signal, so as to ensure normal transmission of the second radio frequency signal.

[0283] The above method can also increase an alternative radio frequency transmission line when two radio frequency signals work at the same time. If one of them is damaged, that is, when the bit detection circuit detects that any one of them is not complete, the method switches to the other complete transmission line to transmit the signal, thereby avoiding the situation that the radio frequency transmission line cannot normally transmit the radio frequency signal after being damaged, and improving the reliability of the terminal device.

[0284] Figure 18 The method for determining the target transmission line when two radio frequency signals work at the same time provided in the embodiments of the present application can be applied to a transmission line assembly as shown in FIG. 8. Figure 17 The method comprises the following steps.

[0285] S1801, determine whether the current working scene of the first radio frequency signal is an interference scene or an anti-interference scene. If not, perform S1802A; if yes, perform S1802B.

[0286] S1802A, determine that the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line.

[0287] When the current operating scenario of the first RF signal is neither an interference scenario nor an anti-interference scenario, indicating that the anti-interference requirement for the first RF signal is not strong at this time, the transmission performance of the signal with a higher transmission priority is prioritized. The terminal device can select the second transmission line with better transmission performance as the target transmission line for the first RF signal to transmit the first RF signal, ensuring that the transmission power of the first RF signal with a higher transmission priority is sufficiently large and the receiving sensitivity is high. The terminal device then selects the first transmission line or the third transmission line as the target transmission line for the second RF signal to transmit the second RF signal. The terminal device can select either the first transmission line or the third transmission line, or select an intact, undamaged one from the first transmission line to transmit the second RF signal.

[0288] S1802B: Determine whether the current operating scenario of the second radio frequency signal is an interference scenario or an anti-interference scenario. If not, execute S1803A; if so, execute S1803B.

[0289] S1803A: Determine whether both the first transmission line and the third transmission line are incomplete. If so, execute S1802A; if not, execute S1804.

[0290] S1804: Determine that the target transmission line corresponding to the first radio frequency signal is a complete one of the first transmission line and the third transmission line, and that the target transmission line corresponding to the second radio frequency signal is the second transmission line.

[0291] At this time, when one of the first transmission line and the third transmission line is intact or both are intact, that is, the first transmission line is intact and the third transmission line is not completely damaged, for example, when the first transmission line is intact and the third transmission line is incomplete, the terminal device can select the first transmission line as the target transmission line corresponding to the first RF signal to transmit the first RF signal, giving priority to ensuring that the first RF signal with a high transmission priority will not interfere. The terminal device can also select the second transmission line to transmit the second RF signal to ensure the normal transmission of the second RF signal. If the first transmission line is incomplete and the third transmission line is intact, the terminal device can select the third transmission line as the target transmission line corresponding to the first RF signal to transmit the first RF signal, giving priority to ensuring that the first RF signal with a high transmission priority will not interfere. The terminal device can also select the second transmission line to transmit the second RF signal to ensure the normal transmission of the second RF signal.

[0292] Optionally, Figure 18 The illustrated embodiment may also include:

[0293] S1803B: Determine whether the first transmission line and the third transmission line are both intact. If so, execute S1805; if not, execute S1803A.

[0294] S1805: Determine that the target transmission lines corresponding to the first radio frequency signal and the second radio frequency signal are the first transmission line and the third transmission line.

[0295] When the current working scenario of the first RF signal is an interference scenario or an anti-interference scenario, and the current working scenario of the second RF signal is an interference scenario or an anti-interference scenario, if the first transmission line and the third transmission line are both intact, the interference problem is given priority, and the first transmission line and the third transmission line with strong anti-interference capabilities can be used as the target transmission lines corresponding to the first RF signal and the second RF signal to transmit the first RF signal and the second RF signal. Optionally, the first transmission line can be selected to transmit the first RF signal, and the third transmission line can be selected to transmit the second RF signal; or the first transmission line can be selected to transmit the second RF signal, and the third transmission line can be selected to transmit the first RF signal. This embodiment of the present application does not limit this.

[0296] In scenarios where two RF signals need to operate simultaneously, the above method prioritizes the signal quality of the RF signal with the highest transmission priority, while also ensuring smooth RF paths, thus maximizing high-quality transmission and reception of both RF signals. Furthermore, when two RF signals operate simultaneously, this method effectively adds an alternative RF transmission line. If one of the two RF signals is damaged, meaning that the in-place detection circuit detects an incomplete RF line, the signal is switched to the other intact transmission line. This avoids the situation where a damaged RF transmission line prevents normal RF signal transmission, thereby improving the reliability of the terminal device.

[0297] Optionally, the above Figure 18 The order of S1801 and S1802B in the embodiment is not limited and can be interchanged. However, the subsequent steps need to be executed in the same order. Figure 18 The combination shown executes the corresponding steps, which will not be repeated here.

[0298] In the above Figure 18 On the basis of the embodiment shown, it is also possible to pre-determine whether two RF signals are in a state of working simultaneously. In some embodiments, it is not necessary to detect whether the second transmission line with strong anti-bending ability is intact. Since the second transmission line has strong anti-bending ability, it will usually not be damaged first. Not detecting whether the second transmission line is intact can also save processes and improve the switching efficiency of the transmission line.

[0299] In some embodiments, the terminal device can also detect in advance whether the second transmission line with strong bending resistance is intact, and detect whether the first transmission line and the third transmission line are intact. If there is damage, the intact transmission line can be directly determined as the target transmission line, saving subsequent processes and improving the switching efficiency of the transmission line. For details, please refer to Figure 19 The embodiment shown, Figure 19 The embodiment shown is based on Figure 18Based on the improvement Figure 18 Before S1801 shown, the following may also be included:

[0300] S1901: Determine whether the first radio frequency signal and the second radio frequency signal are operating simultaneously. If not, execute S1902A; if so, execute S1902B.

[0301] S1902A, perform the method in the above embodiment on one of the first RF signal and the second RF signal to determine the target transmission line. Alternatively, perform the method in the above embodiment on the first RF signal to determine the target transmission line. That is, perform Figure 12 、 Figure 13 、 Figure 14 or Figure 15 Any of the embodiments shown or alternative implementations.

[0302] When only one RF signal is working, the above Figure 12 、 Figure 13 、 Figure 14 or Figure 15 In any of the embodiments or optional implementations shown, the remaining two radio frequency transmission lines can serve as backups to improve reliability.

[0303] S1902B: Determine whether the second transmission line is complete. If so, execute S1801; if not, execute S1903.

[0304] S1903: Determine whether the first transmission line and the third transmission line are both intact. If so, execute S1805; if not, execute S1902A.

[0305] Figure 19 For the implementation process of S1801 in the embodiment shown, please refer to the aforementioned Figure 18 The description of the embodiments will not be repeated here.

[0306] Figure 19 In the embodiment, it is detected in advance whether the second transmission line with strong anti-bending ability is intact, and whether the first transmission line and the third transmission line are intact. If there is damage, the intact transmission line can be directly determined as the target transmission line, which saves subsequent processes and improves the switching efficiency of the transmission lines.

[0307] Optionally, Figure 18 and Figure 19In the shown embodiment, the first transmission line and the third transmission line can be strip lines, and the second transmission line can be a coplanar waveguide transmission line. In a scenario where two radio frequency signals need to work simultaneously, the signal quality of the radio frequency signal with high transmission priority is preferentially guaranteed, while the radio frequency path is also ensured to be unblocked, thereby maximizing the high-quality transmission and reception of the two radio frequency signals. Moreover, when the two radio frequency signals work simultaneously, an additional radio frequency transmission line is virtually added. If one of the radio frequency transmission lines is damaged, i.e., when the in-place detection circuit detects any incomplete radio frequency transmission line, the signal is switched to the other complete radio frequency transmission line for transmission, thereby avoiding the situation where the radio frequency transmission line is damaged and the radio frequency signal cannot be normally transmitted, and improving the reliability of the terminal device. Alternatively, the first transmission line and the third transmission line can also be microstrip lines. Since the anti-interference performance of the microstrip line is stronger than that of the coplanar waveguide transmission line, the microstrip line can also have an anti-interference effect to some extent, thereby improving the communication quality. Moreover, the anti-bending capability of the microstrip line is stronger than that of the strip line, thereby improving the reliability. Alternatively, the second transmission line can also be replaced by a microstrip line. Since the impedance fluctuation of the microstrip line is smaller than that of the strip line, the transmission performance in the unfolded and bent states can also be reduced, thereby ensuring the communication quality.

[0308] In some cases, if the through-axis FPC needs to simultaneously implement the transmission of multiple radio frequency signals, and the radio frequency signals are time-division signals, the radio frequency transmission lines in the transmission line assembly can also be switched in a transceiving asynchronous manner. The terminal device can sort the multiple radio frequency signals according to the transmission priority. First, the current working scenario of the first radio frequency signal with the highest transmission priority is determined. If the current working scenario of the first radio frequency signal is an interference scenario and is not an anti-interference scenario, a radio frequency transmission line with good shielding performance is selected to transmit the first radio frequency signal. Other radio frequency signals are transmitted by using a radio frequency transmission line with good transmission performance (e.g., small insertion loss or small impedance mismatch).

[0309] If the current working scenario of the first radio frequency signal is an interference scenario but is not an anti-interference scenario, a radio frequency transmission line with good shielding performance is selected to transmit the receive signal of the first radio frequency signal, and a radio frequency transmission line with good transmission performance is used to transmit the transmit signal of the first radio frequency signal. If the current working scenario of the first radio frequency signal is not an interference scenario but is an anti-interference scenario, a radio frequency transmission line with good shielding performance is selected to transmit the transmit signal of the first radio frequency signal, and a radio frequency transmission line with good transmission performance is used to transmit the receive signal of the first radio frequency signal. Other radio frequency signals with low transmission priority can use the unselected radio frequency transmission line.

[0310] If the current working scenario of the first RF signal is neither an interference scenario nor an anti-interference scenario, a RF transmission line with good transmission performance can be directly selected to transmit the transmit signal and receive signal of the first RF signal. At this time, the terminal device can determine whether the second RF signal with a transmission priority lower than the first RF signal is in an anti-interference scenario or an interference scenario, and when the second RF signal is in an anti-interference scenario, select a RF transmission line with good shielding performance to transmit the transmit signal of the second RF signal, and when the second RF signal is in an interference scenario, select a RF transmission line with good transmission performance to transmit the receive signal of the second RF signal. In other cases, a RF transmission line with good transmission performance can be given priority. When the current working scenario corresponding to the second RF signal is neither an interference scenario nor an anti-interference scenario, a RF transmission line with good transmission performance can be directly selected to transmit the transmit signal and receive signal of the second RF signal. Then, the current working scenario of the third RF signal of the next level is judged. The judgment method and the selection principle of the RF transmission line can refer to the description of the aforementioned embodiment. When there are more than two RF signals, for example, three, four or even more, the number of RF transmission lines in the corresponding transmission line assembly can also be increased. The types of RF transmission lines in the transmission line assembly include at least two. The number of RF transmission lines can be more than the number of RF signals working simultaneously, and can be 1 or 2 more. While playing a backup role, the RF transmission lines can be switched according to the current working scenarios corresponding to different RF signals. The general principle is to adapt the RF transmission lines according to the transmission priority of the RF signal, and give priority to ensuring that the RF signal with a high transmission priority is not interfered with or interferes with other components. Only when there is no interference or interference, the transmission performance is given priority.

[0311] above Figure 17 The figure shows a transmission line assembly including three RF transmission lines, which is a 1+2 structure, i.e., one RF transmission line with good transmission performance and two RF transmission lines with strong anti-interference ability, for scenarios where two RF signals work simultaneously. Optionally, the transmission line assembly can also be an M+N structure, including M RF transmission lines with good transmission performance and N transmission lines with strong anti-interference ability. Wherein, M and N can be integers greater than or equal to 2, and M and N can be the same or different. For the specific implementation process, please refer to Figure 18 and Figure 19The implementation principle of the embodiment is that, in the presence of interference, priority is given to ensuring that signals with high transmission priority are transmitted using RF transmission lines with good shielding performance to avoid interference; in the absence of interference, priority is given to ensuring that RF signals with high transmission priority are transmitted using RF lines with good transmission performance to ensure transmission performance. When the RF transmission line is damaged, priority is given to ensuring that the transmission line with extremely high transmission priority uses an undamaged RF transmission line to transmit the RF signal. Optionally, before selecting the RF transmission line and before switching the RF transmission line, it can be determined whether the preferred RF transmission line is complete. If it is complete, it is directly switched. If it is incomplete, other complete RF transmission lines are switched. The implementation principle and beneficial effects of this process can be found in the description of the aforementioned embodiment and will not be repeated here. This method can prioritize ensuring the communication quality of signals with high transmission priority when there are multiple signals working together, and it is highly reasonable. In addition, alternative RF transmission lines are added to improve reliability.

[0312] The above describes in detail an example of the method provided by the present application. It is understandable that, in order to implement the above functions, the corresponding device includes a hardware structure and / or software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and 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 a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0313] The present application can divide the functional modules of the device for determining the target transmission line according to the above method example. For example, each function can be divided into different functional modules, or two or more functions can be integrated into one module. The above integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in this application is schematic and is only a logical functional division. In actual implementation, other division methods may be used.

[0314] Figure 20 The schematic diagram of the structure of a device for determining a target transmission line provided by the present application is shown. The device 2000 includes:

[0315] An acquisition module 2001 is configured to acquire a current working scenario, where the current working scenario is used to indicate whether a radio frequency signal is interfered with and / or whether a radio frequency signal causes interference;

[0316] The determination module 2002 is configured to determine a target transmission line from a plurality of candidate transmission lines according to a current working scenario to transmit a radio frequency signal.

[0317] In some embodiments, the first transmission line and the second transmission line are included in a plurality of candidate transmission lines; the first transmission line is a strip line, and the second transmission line is a coplanar waveguide transmission line; or, the first transmission line is a strip line, and the second transmission line is a microstrip line; or, the first transmission line is a microstrip line, and the second transmission line is a coplanar waveguide transmission line.

[0318] In some embodiments, when the current working scenario is an interference scenario or an anti-interference scenario, the target transmission line is the first transmission line, the interference scenario is a scenario in which the radio frequency signal is interfered, and the anti-interference scenario is a scenario in which the radio frequency signal causes interference; when the current working scenario is neither the interference scenario nor the anti-interference scenario, the target transmission line is the second transmission line.

[0319] In some embodiments, the determining module 2002 is specifically configured to determine whether the current working scenario is an anti-interference scenario.

[0320] If yes, the target transmission line is determined to be the first transmission line; if no, it is determined whether the current working scenario is an interference scenario.

[0321] When the current working scenario is the interference scenario, the target transmission line is determined to be the first transmission line; when the current working scenario is not the interference scenario, the target transmission line is determined to be the second transmission line.

[0322] In some embodiments, the determining module 2002 is specifically configured to determine whether the first transmission line is complete; if yes, it is determined whether the current working scenario is an anti-interference scenario; if no, the target transmission line is determined to be the second transmission line; when the current working scenario is not the interference scenario, the determining module 2002 is specifically configured to determine whether the second transmission line is normal; when the second transmission line is complete, the target transmission line is determined to be the second transmission line; when the second transmission line is not complete, the target transmission line is determined to be the first transmission line.

[0323] In some embodiments, the radio frequency signal is a time-division signal; when the current working scenario is an interference scenario and an anti-interference scenario, the target transmission line is the first transmission line, the interference scenario is a scenario in which the radio frequency signal is interfered, and the anti-interference scenario is a scenario in which the radio frequency signal causes interference; when the current working scenario is the interference scenario and is not the anti-interference scenario, in a transmitting state, the target transmission line is the second transmission line, and in a receiving state, the target transmission line is the first transmission line; when the current working scenario is not the interference scenario and is the anti-interference scenario, in the transmitting state, the target transmission line is the first transmission line, and in the receiving state, the target transmission line is the second transmission line; when the current working scenario is neither the interference scenario nor the anti-interference scenario, the target transmission line is the second transmission line.

[0324] In some embodiments, the determination module 2002 is specifically used to determine whether the current working scene is an anti-interference scene; if so, determine whether the current working scene is an interference scene; when the current working scene is an interference scene, determine the target transmission line to be the first transmission line; when the current working scene is not an interference scene, determine the target transmission line to be the second transmission line in the transmitting state, and determine the target transmission line to be the first transmission line in the receiving state.

[0325] In some embodiments, the determination module 2002 is further used to determine whether the current working scene is an interference scene if the current working scene is not an anti-interference scene; when the current working scene is an interference scene, in the transmitting state, the target transmission line is determined to be the second transmission line, and in the receiving state, the target transmission line is determined to be the first transmission line; when the current working scene is not an interference scene, the target transmission line is determined to be the second transmission line.

[0326] In some embodiments, the determination module 2002 is specifically configured to determine whether the first transmission line is complete; if not, determine that the target transmission line is the second transmission line; if so, determine whether the second transmission line is complete; when the second transmission line is incomplete, determine that the target transmission line is the first transmission line; and when the second transmission line is complete, determine whether the current working scenario is an anti-interference scenario.

[0327] In some embodiments, the RF signal includes: a first RF signal and a second RF signal, and the transmission priority of the first RF signal is higher than the transmission priority of the second RF signal; the multiple transmission lines to be selected include: a first transmission line, a second transmission line and a third transmission line; the first transmission line and the third transmission line are strip lines, and the second transmission line is a coplanar waveguide transmission line; or, the first transmission line and the third transmission line are strip lines, and the second transmission line is a microstrip line; or, the first transmission line and the third transmission line are microstrip lines, and the second transmission line is a coplanar waveguide transmission line.

[0328] In some embodiments, when the current working scenario of the first radio frequency signal is neither an interference scenario nor an anti-interference scenario, the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line;

[0329] When the current operating scenario of the first radio frequency signal is an interference scenario or an anti-interference scenario, and the current operating scenario of the second radio frequency signal is neither an interference scenario nor an anti-interference scenario, and when both the first transmission line and the third transmission line are incomplete, the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line;

[0330] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the current working scenario of the second radio frequency signal is not the interference scenario and not the anti-interference scenario, and at least one of the first transmission line and the third transmission line is complete, the target transmission line corresponding to the first radio frequency signal is the complete one of the first transmission line and the third transmission line, and the target transmission line corresponding to the second radio frequency signal is the second transmission line;

[0331] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the current working scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, and the first transmission line and the third transmission line are both complete, the target transmission line corresponding to the first radio frequency signal and the second radio frequency signal is the first transmission line and the third transmission line;

[0332] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the current working scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, and the first transmission line and the third transmission line are both not complete, the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line and the third transmission line;

[0333] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the current working scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, and the first transmission line is complete and the third transmission line is not complete, the target transmission line corresponding to the first radio frequency signal is the first transmission line, and the target transmission line corresponding to the second radio frequency signal is the second transmission line;

[0334] When the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the current working scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, and the first transmission line is not complete and the third transmission line is complete, the target transmission line corresponding to the first radio frequency signal is the third transmission line, and the target transmission line corresponding to the second radio frequency signal is the second transmission line;

[0335] The interference scenario is a scenario in which a radio frequency signal is interfered, and the anti-interference scenario is a scenario in which a radio frequency signal causes interference.

[0336] In some embodiments, the determination module 2002 is specifically used to determine whether the current working scene of the first RF signal is an interference scene or an anti-interference scene; if not, determine that the target transmission line corresponding to the first RF signal is the second transmission line, and the target transmission line corresponding to the second RF signal is the first transmission line or the third transmission line; if so, determine whether the current working scene of the second RF signal is an interference scene or an anti-interference scene; when the current working scene of the second RF signal is neither an interference scene nor an anti-interference scene, determine whether both the first transmission line and the third transmission line are incomplete; when both the first transmission line and the third transmission line are incomplete, determine that the target transmission line corresponding to the first RF signal is the second transmission line, and the target transmission line corresponding to the second RF signal is the first transmission line; when at least one of the first transmission line and the third transmission line is complete, determine that the target transmission line corresponding to the first RF signal is the complete one of the first transmission line and the third transmission line, and the target transmission line corresponding to the second RF signal is the second transmission line.

[0337] In some embodiments, the determination module 2002 is further configured to, when the current working scenario of the second RF signal is an interference scenario or an anti-interference scenario, determine whether the first transmission line and the third transmission line are both complete; if so, determine that the target transmission lines corresponding to the first RF signal and the second RF signal are the first transmission line and the third transmission line; if not, determine whether the first transmission line and the third transmission line are both incomplete; when both the first transmission line and the third transmission line are incomplete, determine that the target transmission line corresponding to the first RF signal is the second transmission line, and the target transmission line corresponding to the second RF signal is the first transmission line; when at least one of the first transmission line and the third transmission line is complete, determine that the target transmission line corresponding to the first RF signal is the complete one of the first transmission line and the third transmission line, and the target transmission line corresponding to the second RF signal is the second transmission line.

[0338] In some embodiments, the determination module 2002 is further configured to determine whether the first radio frequency signal and the second radio frequency signal are operating simultaneously; if not, executing the operation on one of the first radio frequency signal and the second radio frequency signal. Figure 12 、 Figure 13 、 Figure 14 or Figure 15 and any method of the related embodiments; if so, determining whether the second transmission line is complete; when the second transmission line is complete, executing the step of determining whether the current working scenario of the first radio frequency signal is an interference scenario or an anti-interference scenario; when the second transmission line is incomplete, determining whether both the first transmission line and the third transmission line are complete; when both the first transmission line and the third transmission line are complete, determining that the target transmission lines corresponding to the first radio frequency signal and the second radio frequency transmission line are the first transmission line and the third transmission line; when at least one of the first transmission line and the third transmission line is complete, executing the following steps on the first radio frequency signal. Figure 12 、 Figure 13 、 Figure 14or Figure 15 And any method of the related embodiments.

[0339] The specific manner in which the device 2000 executes the method for determining the target transmission line and the beneficial effects produced can be found in the relevant description of the method embodiment, which will not be repeated here.

[0340] The embodiment of the present application also provides an electronic device, including the above-mentioned processor. The electronic device provided by this embodiment can be Figure 1 The terminal device 100 shown is used to perform the above-described method for determining a target transmission line. If integrated, the terminal device may include a processing module, a storage module, and a communication module. The processing module can be used to control and manage the terminal device's operations. For example, it can support the terminal device in executing the steps performed by the display unit, detection unit, and processing unit. The storage module can support the terminal device in storing program code and data. The communication module can support communication between the terminal device and other devices.

[0341] The processing module may be a processor or a controller. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processing (DSP) and a microprocessor, and so on. The storage module may be a memory. The communication module may specifically be a device that interacts with other terminal devices, such as a radio frequency circuit, a Bluetooth chip, or a Wi-Fi chip.

[0342] In one embodiment, when the processing module is a processor and the storage module is a memory, the terminal device involved in this embodiment may be a Figure 1 Device with the structure shown.

[0343] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the processor executes the method for determining a target transmission line described in any of the above embodiments.

[0344] An embodiment of the present application further provides a computer program product. When the computer program product is run on a computer, the computer is caused to execute the above-mentioned related steps to implement the method for determining the target transmission line in the above-mentioned embodiment.

[0345] Among them, the electronic device, computer-readable storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0346] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, the replaced units may or may not be physically separated, and the components displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed in multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0347] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0348] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0349] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical scope disclosed by the present application, and all the changes and replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for determining a target transmission line, characterized in that: The method comprises: Obtaining a current working scenario, where the current working scenario is used to indicate whether a radio frequency signal is interfered with and / or whether the radio frequency signal causes interference; According to the current working scenario, determining a target transmission line from a plurality of candidate transmission lines to transmit the radio frequency signal; The plurality of transmission lines to be selected include a first transmission line and a second transmission line; The first transmission line is a stripline, and the second transmission line is a coplanar waveguide transmission line; or, The first transmission line is a stripline, and the second transmission line is a microstrip line; or, The first transmission line is a microstrip line, and the second transmission line is a coplanar waveguide transmission line; The radio frequency signal is a time-division signal. When the current working scenario is an interference scenario and not an anti-interference scenario, in the transmitting state, the target transmission line is the second transmission line, and in the receiving state, the target transmission line is the first transmission line. The interference scenario is a scenario in which the radio frequency signal is interfered with, and the anti-interference scenario is a scenario in which the radio frequency signal causes interference.

2. The method according to claim 1, characterized in that When the current working scenario is an interference scenario and an anti-interference scenario, the target transmission line is the first transmission line; When the current working scenario is not an interference scenario but an anti-interference scenario, in the transmitting state, the target transmission line is the first transmission line, and in the receiving state, the target transmission line is the second transmission line; When the current working scenario is neither an interference scenario nor an anti-interference scenario, the target transmission line is the second transmission line.

3. The method according to claim 2, characterized in that The step of determining a target transmission line from a plurality of candidate transmission lines to transmit a radio frequency signal according to the current working scenario includes: Determining whether the current working scenario is an anti-interference scenario; If so, determining whether the current working scene is an interference scene; When the current working scenario is an interference scenario, determining that the target transmission line is the first transmission line; When the current working scenario is not an interference scenario, the target transmission line is determined to be the second transmission line in a transmitting state, and the target transmission line is determined to be the first transmission line in a receiving state.

4. The method according to claim 3, characterized in that The method further comprises: If the current working scene is not an anti-interference scene, determining whether the current working scene is an interference scene; When the current working scenario is an interference scenario, in a transmitting state, determining the target transmission line to be the second transmission line, and in a receiving state, determining the target transmission line to be the first transmission line; When the current working scenario is not an interference scenario, the target transmission line is determined to be the second transmission line.

5. The method according to claim 3 or 4, characterized in that The determining whether the current working scene is an anti-interference scene includes: determining whether the first transmission line is complete; If not, determining that the target transmission line is the second transmission line; If so, determining whether the second transmission line is complete; When the second transmission line is incomplete, determining the target transmission line to be the first transmission line; When the second transmission line is complete, it is determined whether the current working scenario is an anti-interference scenario.

6. A method for determining a target transmission line, characterized in that: The method comprises: Obtaining a current working scenario, where the current working scenario is used to indicate whether a radio frequency signal is interfered with and / or whether the radio frequency signal causes interference; According to the current working scenario, determining a target transmission line from a plurality of candidate transmission lines to transmit the radio frequency signal; The radio frequency signal includes: a first radio frequency signal and a second radio frequency signal, and the transmission priority of the first radio frequency signal is higher than the transmission priority of the second radio frequency signal; The plurality of transmission lines to be selected include: a first transmission line, a second transmission line and a third transmission line; The first transmission line and the third transmission line are strip lines, and the second transmission line is a coplanar waveguide transmission line; or, The first transmission line and the third transmission line are strip lines, and the second transmission line is a microstrip line; or, The first transmission line and the third transmission line are microstrip lines, and the second transmission line is a coplanar waveguide transmission line; When the current working scenario of the first radio frequency signal is neither an interference scenario nor an anti-interference scenario, the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line; When the current operating scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, and the current operating scenario of the second radio frequency signal is neither the interference scenario nor the anti-interference scenario, and when both the first transmission line and the third transmission line are incomplete, the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line; The interference scenario is a scenario in which the radio frequency signal is interfered with, and the anti-interference scenario is a scenario in which the radio frequency signal causes interference.

7. The method according to claim 6, characterized in that When the current operating scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, and the current operating scenario of the second radio frequency signal is neither the interference scenario nor the anti-interference scenario, and when at least one of the first transmission line and the third transmission line is intact, the target transmission line corresponding to the first radio frequency signal is the intact one of the first transmission line and the third transmission line, and the target transmission line corresponding to the second radio frequency signal is the second transmission line; When the current operating scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, and the current operating scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, and when the first transmission line and the third transmission line are both intact, the target transmission lines corresponding to the first radio frequency signal and the second radio frequency signal are the first transmission line and the third transmission line; When the current operating scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, and the current operating scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, and when both the first transmission line and the third transmission line are incomplete, the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission lines corresponding to the second radio frequency signal are the first transmission line and the third transmission line; When the current operating scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, and the current operating scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, and when the first transmission line is complete and the third transmission line is incomplete, the target transmission line corresponding to the first radio frequency signal is the first transmission line, and the target transmission line corresponding to the second radio frequency signal is the second transmission line; When the current working scenario of the first RF signal is the interference scenario or the anti-interference scenario, and the current working scenario of the second RF signal is the interference scenario or the anti-interference scenario, and when the first transmission line is incomplete and the third transmission line is complete, the target transmission line corresponding to the first RF signal is the third transmission line, and the target transmission line corresponding to the second RF signal is the second transmission line.

8. The method according to claim 7, characterized in that The step of determining a target transmission line from a plurality of candidate transmission lines to transmit a radio frequency signal according to the current working scenario includes: determining whether a current operating scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario; If not, determining that the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line or the third transmission line; If so, determining whether the current working scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario; When the current working scenario of the second radio frequency signal is neither the interference scenario nor the anti-interference scenario, determining whether both the first transmission line and the third transmission line are incomplete; When both the first transmission line and the third transmission line are incomplete, determining that the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line; When at least one of the first transmission line and the third transmission line is intact, the target transmission line corresponding to the first RF signal is determined to be the intact one of the first transmission line and the third transmission line, and the target transmission line corresponding to the second RF signal is determined to be the second transmission line.

9. The method according to claim 8, characterized in that The method further comprises: When the current working scenario of the second radio frequency signal is the interference scenario or the anti-interference scenario, determining whether the first transmission line and the third transmission line are both intact; If so, determining that the target transmission lines corresponding to the first radio frequency signal and the second radio frequency signal are the first transmission line and the third transmission line; If not, determining whether both the first transmission line and the third transmission line are incomplete; When both the first transmission line and the third transmission line are incomplete, determining that the target transmission line corresponding to the first radio frequency signal is the second transmission line, and the target transmission line corresponding to the second radio frequency signal is the first transmission line; When at least one of the first transmission line and the third transmission line is intact, the target transmission line corresponding to the first RF signal is determined to be the intact one of the first transmission line and the third transmission line, and the target transmission line corresponding to the second RF signal is determined to be the second transmission line.

10. The method according to claim 9, characterized in that Before determining whether the current operating scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario, the method further includes: determining whether the first radio frequency signal and the second radio frequency signal operate simultaneously; If not, performing the method according to any one of claims 1 to 5 on an active one of the first radio frequency signal and the second radio frequency signal; If so, determining whether the second transmission line is complete; When the second transmission line is complete, performing the step of determining whether the current working scenario of the first radio frequency signal is the interference scenario or the anti-interference scenario; When the second transmission line is incomplete, determining whether the first transmission line and the third transmission line are both complete; When the first transmission line and the third transmission line are both intact, determining that the target transmission lines corresponding to the first radio frequency signal and the second radio frequency signal are the first transmission line and the third transmission line; When at least one of the first transmission line and the third transmission line is complete, the method according to any one of claims 1 to 5 is performed on the first radio frequency signal.

11. A transmission line assembly, characterized in that: comprising a plurality of transmission lines to be selected, wherein the plurality of transmission lines to be selected include a first transmission line and a second transmission line; When the first transmission line is a stripline, the second transmission line is a coplanar waveguide transmission line; or, The first transmission line is a stripline, and the second transmission line is a microstrip line; or, The first transmission line is a microstrip line, and the second transmission line is a coplanar waveguide transmission line; The first transmission line and the second transmission line are used to transmit radio frequency signals according to the method according to any one of claims 1 to 5.

12. A transmission line assembly, characterized in that: comprising a plurality of transmission lines to be selected, wherein the plurality of transmission lines to be selected include: a first transmission line, a second transmission line and a third transmission line; The plurality of transmission lines to be selected include: a first transmission line, a second transmission line and a third transmission line; The first transmission line and the third transmission line are strip lines, and the second transmission line is a coplanar waveguide transmission line; or, The first transmission line and the third transmission line are strip lines, and the second transmission line is a microstrip line; or, The first transmission line and the third transmission line are microstrip lines, and the second transmission line is a coplanar waveguide transmission line; The first transmission line, the second transmission line, and the third transmission line are used to transmit the first radio frequency signal and the second radio frequency signal according to the method according to any one of claims 6 to 10.

13. An electronic device, characterized in that: include: processors, memory, and interfaces; The processor, the memory, and the interface cooperate with each other so that the electronic device executes the method according to any one of claims 1 to 10.

14. An electronic device, characterized in that: include: The transmission line assembly according to claim 11 or 12.

15. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor is caused to perform the method according to any one of claims 1 to 10.

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