CN112152649B

CN112152649B - Radio frequency circuit, terminal device, signal transmission method, and storage medium

Info

Publication number: CN112152649B
Application number: CN202010975329.5A
Authority: CN
Inventors: 武小勇
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2022-04-12
Anticipated expiration: 2040-09-16
Also published as: CN112152649A

Abstract

The embodiment of the application discloses a radio frequency circuit, terminal equipment, a signal transmission method and a storage medium, wherein the radio frequency circuit comprises a transmitting module, a first transmitting channel, a second transmitting channel and a control unit; the control unit is used for controlling the transmitting module to transmit a transmitting signal to the first transmitting channel when the control unit is in the first communication mode; the first transmitting channel is used for processing the transmitting signal transmitted by the transmitting module and sending the processed transmitting signal to the network equipment; the control unit is also used for controlling the transmitting module to transmit a transmitting signal to the second transmitting access when the control unit is in the second communication mode, and the transmitting signal does not generate interference on a receiving signal in the second communication mode; and the second transmitting path is used for transmitting the transmitting signal transmitted by the transmitting module to the network equipment. The radio frequency circuit, the terminal device, the signal transmission method and the storage medium can reduce the insertion loss of the transmission signal on a transmission channel and reduce the power consumption generated during signal transmission.

Description

Radio frequency circuit, terminal device, signal transmission method, and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a radio frequency circuit, a terminal device, a signal transmission method, and a storage medium.

Background

With the rapid development of communication technologies, 5G (5th generation mobile networks, fifth generation mobile communication technologies) has gradually entered the life of internet users, and more terminal devices support accessing to 5G networks. In order to support the transmission of 5G signals, the terminal device needs to improve the conventional rf module, and a device is added in the rf module to support the transmission of 5G signals, so that the insertion loss on the transmission path is increased, and how to reduce the power consumption during signal transmission becomes an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application discloses a radio frequency circuit, a terminal device, a signal transmission method and a storage medium, which can reduce the insertion loss of a transmission signal on a transmission channel and reduce the power consumption generated during signal transmission.

The embodiment of the application discloses a radio frequency circuit, which comprises a transmitting module, a first transmitting channel, a second transmitting channel and a control unit, wherein the transmitting module is respectively electrically connected with the first transmitting channel and the second transmitting channel;

the control unit is used for controlling the transmitting module to transmit a transmitting signal to the first transmitting channel when the control unit is in a first communication mode;

the first transmitting access is used for processing the transmitting signal transmitted by the transmitting module and sending the processed transmitting signal to network equipment so as to inhibit the interference of the transmitting signal in the first communication mode on the received signal;

the control unit is further configured to control the transmitting module to transmit a transmitting signal to the second transmitting access when the control unit is in the second communication mode, where the transmitting signal does not interfere with a receiving signal in the second communication mode;

and the second transmitting path is used for transmitting the transmitting signal transmitted by the transmitting module to the network equipment.

The embodiment of the application discloses terminal equipment, which comprises the circuit.

The embodiment of the application discloses a signal transmission method, which is applied to terminal equipment and comprises the following steps:

when the terminal equipment is in a first communication mode, processing a transmitting signal through a first transmitting path, and sending the processed transmitting signal to network equipment so as to inhibit the interference of the transmitting signal in the first communication mode on a receiving signal;

and when the terminal equipment is in a second communication mode, transmitting a transmitting signal to the network equipment through a second transmitting channel, wherein the transmitting signal in the second communication mode does not generate interference on a receiving signal, and the number of devices included in the second channel is smaller than that of devices included in the first channel.

The embodiment of the application discloses a terminal device, which comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor is enabled to realize the method.

An embodiment of the application discloses a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the method as described above.

The radio frequency circuit, the terminal device, the signal transmission method and the storage medium disclosed in the embodiments of the present application, when in the first communication mode, the transmitting signal is processed through the first transmitting path, and the processed transmitting signal is sent to the network equipment, so that the interference of the transmitting signal in the first communication mode to the receiving signal can be inhibited, when in the second communication mode, because the transmitting signal in the second communication mode does not generate interference to the receiving signal, can transmit signals to the network equipment through the second transmission path, can distinguish communication modes, adopts different transmission paths to transmit the transmission signals under different communication modes, when the interference of the transmitting signal to the receiving signal is not required to be inhibited, the transmitting signal can be sent through the second transmitting paths with fewer devices, the insertion loss of the transmitting signal on the transmitting paths can be reduced, and the power consumption generated during signal transmission is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a diagram illustrating an application scenario of a signal transmission method according to an embodiment;

FIG. 2 is a block diagram of the RF circuitry of one embodiment;

FIG. 3 is a block diagram of an RF circuit in another embodiment;

FIG. 4 is a block diagram of a first transmit path in one embodiment;

FIG. 5 is a block diagram of an RF circuit in another embodiment;

FIG. 6 is a block diagram of an RF circuit in another embodiment;

FIG. 7 is a block diagram showing the structure of a terminal device in one embodiment;

FIG. 8 is a flow chart of a signal transmission method in one embodiment;

FIG. 9 is a block diagram of a signal transmission device in one embodiment;

fig. 10 is a block diagram of a terminal device in another embodiment.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is to be noted that the terms "comprises" and "comprising" and any variations thereof in the examples and figures of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first transmit path may be referred to as a second transmit path, and similarly, a second transmit path may be referred to as a first transmit path, without departing from the scope of the present application. The first transmit path and the second transmit path are both transmit paths of radio frequency signals, but they are not the same transmit path.

Fig. 1 is a diagram illustrating an application scenario of a signal transmission method according to an embodiment. As shown in fig. 1, a communication connection is established between the terminal device 110 and the network device 120, optionally, the terminal device 110 and the network device 120 may establish a communication connection through a fourth generation, a fifth generation, and other communication technologies, and a communication connection manner of the terminal device and the network device is not limited in this embodiment of the application.

In some embodiments, terminal device 110 may be referred to as a User Equipment (UE). The terminal device may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or the like, and may also be a mobile phone, a Mobile Station (MS), a terminal device (mobile terminal), a notebook computer, or the like, and the terminal device 110 may communicate with one or more core networks through a Radio Access Network (RAN). For example, terminal equipment 110 may be a mobile telephone (or "cellular" telephone) or a computer having terminal equipment, etc., and terminal equipment 110 may also be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device that exchanges voice and/or data with a radio access network, for example. The terminal device 110 may also be a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a network evolved in the future, and the like, and the implementation of the present application is not limited.

In some embodiments, the network device 120 may be an evolved Node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP), a Transmission Point (TP), a new generation NodeB (g), or the like in a Long Term Evolution (LTE) system, an NR communication system, or a licensed assisted access long-term evolution (LAA-LTE) system. The network device 120 may also be other types of network devices in a future evolution network, and the implementation of the present application is not limited.

In related technologies, 5G has two major deployment schemes, namely, non-standby Networking (NSA) and stand-alone networking (SA), and most of 5G at the present stage adopts the NSA deployment scheme and realizes transmission of 5G signals by modifying a 4G (4th generation mobile communication technology) base station. In order to increase the data transmission rate and ensure the stability of signal transmission, the terminal device may employ multiple connection technologies such as endec (E-UTRAN, new radio dual connection), CA (Carrier Aggregation), and the like. The ENDC is a 4G and 5G dual-connection mode, the terminal equipment is simultaneously connected with a 4G base station and a 5G base station, and simultaneously supports the transmission of 4G signals and 5G signals; the CA technique can aggregate multiple carriers together, thereby increasing the uplink and downlink transmission rates. For multiple connection technologies such as ENDC and CA, different frequency band combinations may be used to support the transmission of signals in multiple (at least two) different frequency bands.

For some specific frequency band combinations, the terminal device may have a problem of self-interference, and the transmitted signal may have a problem of harmonic interference to the received signal. For example, taking the combination of the B3 (transmission frequency 1710-. In order to solve the problem, a filter, a combiner and other devices need to be added to a transmission path after a Power Amplifier (PA) to meet the requirement of 5G radio frequency specification. However, the target terminal device can support dozens of frequency bands, some frequency band combinations meet the radio frequency requirement, and a transmission path including a filter, a combiner and the like is also needed, so that the insertion loss of the transmission path is increased, and the power consumption of the PA is increased.

The embodiment of the application provides a radio frequency circuit, a terminal device, a signal transmission method and a storage medium, which can distinguish communication modes, adopt different transmitting paths to transmit transmitting signals in different communication modes, and can transmit the transmitting signals through a second transmitting path with fewer devices when the interference of the transmitting signals to receiving signals is not required to be inhibited, so that the insertion loss of the transmitting signals on the transmitting path can be reduced, and the power consumption generated during signal transmission is reduced.

Fig. 2 is a block diagram of an rf circuit according to an embodiment. As shown in fig. 2, in one embodiment, the rf circuit 200 may include a control unit 210, a transmitting module 220, a first transmitting path 230, and a second transmitting path 240. The control unit 210 is electrically connected to the transmitting module 220, and the transmitting module 220 is electrically connected to the first transmitting path 230 and the second transmitting path 240, respectively.

The control unit 210 is configured to control the transmitting module 220 to transmit a transmitting signal to the first transmitting path 230 when the first communication mode is set.

The first transmission path 230 is configured to process a transmission signal transmitted by the transmission module 220 and send the processed transmission signal to a network device, so as to suppress interference of the transmission signal in the first communication mode with a received signal.

Alternatively, the control unit may be a baseband chip, a modem (modem) chip, or the like. The control unit 210 may obtain a current communication mode, which may be used to indicate a current communication mode of the terminal device with the network device. In some embodiments, the communication mode may include, but is not limited to, an ENDC mode, an AC mode, a single carrier mode, and the like. The ENDC mode is a dual-connection mode of 4G and 5G, and the terminal equipment establishes communication connection with the network equipment of 4G and the network equipment of 5G at the same time. The AC mode is aggregation of multiple carriers in the same network access technology, and the terminal device establishes communication connection with network devices of different cells in the same macro station. The single carrier mode is to perform single carrier signal transmission only in one frequency band, and the terminal device establishes communication connection with one network device.

For multiple connectivity modes, such as ENDC mode, AC mode, etc., one or more different combinations of frequency bands may be defined. Currently, in the global LTE, there are multiple frequency bands such as LB (Low Band, Low frequency)/MB (Middle Band, intermediate frequency)/HB (High Band, High frequency), etc., and there are multiple frequency bands such as LB/MB/HB/SUB6G for 5G, so that there may be many different frequency Band combination schemes for multiple connection modes such as the endec mode and the AC mode, for example, for the endec mode, B1 (emission frequency 1920 + 1980MHz) + N41 (frequency 2496MHz-2690MHz), B3 (emission frequency 1710-1785MHz) + N78 (frequency 3300-3800MHz), for the AC mode, B1+ B3, B2+ B39 (frequency 1880-1880 MHz), etc., which are not limited herein.

For some frequency band combinations, there may be a problem of self-interference, i.e., where a transmitted signal of a first frequency band may cause interference to a received signal of a second frequency band, which may include, but is not limited to, harmonic interference, i.e., a multiple of the transmitted frequency band of the first frequency band (which may be a positive integer greater than or equal to 2) may fall into the received frequency band of the second frequency band. In the embodiment of the present application, the first communication mode may refer to a communication mode in which the transmission signal may generate interference to the reception signal, and may include, but is not limited to, an endec mode, an AC mode, and the like having the frequency band combination with the self-interference problem.

After acquiring the current communication mode, the control unit 210 may determine whether the current communication mode is the first communication mode or the second communication mode. In some embodiments, each first communication mode and each second communication mode may be written to the driver file. When the control unit 210 receives the network access instruction, it may determine the network connection mode (e.g., the endec mode, the AC mode, the single carrier mode, etc.) selected for use, and the transmission frequency band, the reception frequency band, etc. in the network connection mode according to the network access instruction, so that a communication mode matching the network connection mode, the transmission frequency band, the reception frequency band selected for use may be found in the driver file. And if the matched communication mode belongs to the first communication mode, determining that the current communication mode is the first communication mode, and if the matched communication mode belongs to the second communication mode, determining that the current communication mode is the second communication mode.

As another embodiment, after determining that the network connection mode is selected, the control unit 210 may determine whether the network connection mode is a multi-connection mode such as an endec, an AC, and the like, if so, may further obtain a transmitting frequency band and a receiving frequency band in the network connection mode, and determine whether harmonic interference exists according to the transmitting frequency band and the receiving frequency band, and if a multiple of the transmitting frequency band is within the receiving frequency band, determine that harmonic interference exists, and may determine that the current communication mode is the first communication mode. If there is no harmonic interference, or the network connection mode is not the multi-connection mode, it may be determined that the current communication mode is the second communication mode.

If the current communication mode is the first communication mode, the transmission module 220 may be controlled to transmit a signal to the first transmission path 230. The first transmit path 230 may process the transmit signal transmitted by the transmit module 220, and optionally, the processing may include filtering out a component of the transmit signal that may interfere with the receive signal, so that the obtained processed transmit signal may not interfere with the receive signal, thereby being able to suppress interference of the transmit signal in the first communication mode with the receive signal.

In some embodiments, the transmitting module 220 may include a radio frequency transceiver and a PA, and the control unit 210 performs encoding, modulation, and the like on a data signal to be transmitted to obtain a transmitting signal, and transmits the transmitting signal to the PA through the radio frequency transceiver. The PA can amplify the transmitting signal to obtain enough power current, so that the transmitting signal can be converted into electromagnetic waves through the antenna to be radiated. In the first communication mode, the transmitting module 220 may transmit the amplified transmission signal to the first transmission path 230. Optionally, the radio frequency circuit 200 may further include an antenna (not shown in fig. 1), the first transmission path 230 may be electrically connected to the antenna, and after the interference suppression processing is performed on the transmission signal by the first transmission path 230, the processed transmission signal may be sent to the antenna, and then the transmission signal is converted into electromagnetic waves by the antenna and radiated out, so that the network device may receive the transmission signal.

The control unit 210 is further configured to control the transmitting module 220 to transmit the transmitting signal to the second transmitting path 240 when the communication module is in the second communication mode, where the transmitting signal in the second communication mode does not generate interference with the receiving signal.

And a second transmitting path 240 for transmitting the transmitting signal transmitted by the transmitting module 220 to the network device.

The second communication mode may refer to a communication mode in which the transmitted signal does not generate interference with the received signal, and may include, but is not limited to, an ENDC mode, an AC mode, a single carrier mode, and the like, in which there is no self-interference problem, for example, a frequency band combination of B1 (transmission frequency 1920-1980MHz) + N41 (frequency 2496MHz-2690MHz) in the ENDC mode does not generate harmonic interference, and the frequency band combination itself satisfies the radio frequency requirement, and then may be determined as the second communication mode. For another example, the transmission signals of some frequency bands in the single carrier mode also satisfy the radio frequency requirement, and may be determined as the second communication mode.

If the current communication mode is the second communication mode, the transmitting module 220 may send the transmitting signal to the second transmitting path, and since the transmitting signal in the second communication mode does not interfere with the receiving signal and does not need to suppress harmonic interference generated by the transmitting signal on the receiving signal, the second transmitting path 240 may include fewer devices than the first transmitting path 230. In some embodiments, the second transmitting path 240 may also be electrically connected to the antenna, and the second transmitting path 240 may directly transmit the transmitting signal sent by the PA in the transmitting module 220 to the antenna, and then the transmitting signal is converted into electromagnetic waves by the antenna and radiated out, so that the network device can receive the transmitting signal.

Different transmission paths can be adopted respectively aiming at different communication modes, signals can be sent directly through fewer transmission paths of devices on the premise that frequency band/frequency band combinations meet radio frequency index requirements, the same transmission paths are not adopted under all communication modes, and the problem that in the related technology, in order to enable the frequency band combinations of certain multi-connection technologies such as CA, ENDC and the like to meet the radio frequency index requirements, path insertion loss of other frequency band combinations, single carrier wave modes and the like is sacrificed can be solved.

As a specific implementation manner, the second transmitting path 240 may be a pure impedance circuit, the second transmitting path 240 may not include any device, and the transmitting signal sent by the transmitting module 210 may be directly transmitted to the antenna through the second transmitting path 240, so that the insertion loss generated by the transmitting signal in the second communication mode can be effectively reduced, and the transmitting current of the PA is reduced, and under the same PA transmitting power, the second transmitting path 240 may output higher power, so that the coverage range of the radio frequency signal sent by the antenna is wider.

In the embodiment of the application, when the first communication mode is in, the transmission signal is processed through the first transmission path, and the processed transmission signal is sent to the network device, so that interference of the transmission signal in the first communication mode on the received signal can be suppressed, when the second communication mode is in, because the transmission signal in the second communication mode does not interfere with the received signal, the transmission signal can be sent to the network device through the second transmission path, so that the communication modes can be distinguished, different transmission paths are adopted to send the transmission signal in different communication modes, when the interference of the transmission signal on the received signal is not required to be suppressed, the transmission signal can be sent through the second transmission path with fewer devices, the insertion loss of the transmission signal on the transmission path can be reduced, and the power consumption generated during signal transmission is reduced.

Fig. 3 is a block diagram of an rf circuit in another embodiment. As shown in fig. 3, in an embodiment, the rf circuit 200 further includes a switch module 250, the switch module 250 can be electrically connected to the transmitting module 220, the first transmitting path 230 and the second transmitting path 240 respectively, and the control unit 210 can be electrically connected to the switch module 250.

The control unit 210 is further configured to send a first switching signal to the switch module 250 when in the first communication mode. The switch module 250 is configured to switch to a first closed state according to the first switching signal when receiving the first switching signal, so that the transmitting module 220 is conducted with the first transmitting path 230.

In some embodiments, the selection of the firing path may be controlled by a physical device. When in the first communication mode, the control unit 210 may control the switch module 250 to switch to the first closed state. In the first closed state, the transmission module 220 is connected to the first transmission path 230, and the transmission module 220 is disconnected from the second transmission path 240, so that the transmission module 220 can transmit the transmission signal through the first transmission path 230.

The control unit 210 is further configured to send a second switching signal to the switch module 250 when the communication module is in the second communication mode. The switch module 250 is further configured to switch to a second closed state according to the second switching signal when receiving the second switching signal, so that the transmitting module 220 is conducted with the second transmitting path 240.

When in the second communication mode, the control unit 210 may control the switch module 250 to switch to the second closed state. In the second closed state, the transmitting module 220 is disconnected from the first transmitting path 230, the transmitting module 220 is connected to the second transmitting path 240, and the transmitting module 220 can transmit the transmitting signal through the second transmitting path 240.

For one embodiment, the switch module 250 may include a single-pole double-throw switch, and the control unit 210 may control a closed state of the single-pole double-throw switch according to a first switching signal and a second switching signal, respectively. Alternatively, the single-pole double-throw switch may have a first terminal connected to the transmission module 220, a second terminal connected to the first transmission path 230, and a third terminal connected to the second transmission path 240. The control unit 210 may control the first terminal and the second terminal of the single-pole double-throw switch to be closed in the first communication mode, and may control the first terminal and the third terminal of the single-pole double-throw switch to be closed in the second communication mode.

As another embodiment, the switch module 250 may also include a first switch and a second switch, wherein the first switch may be connected to the transmitting module 220 and the first transmitting path 230, respectively, and the second switch may be connected to the transmitting module 220 and the second transmitting path 240, respectively. The control unit 210 may control the first switch to be closed and the second switch to be opened in the first communication mode, and may control the second switch to be closed and the first switch to be opened in the second communication mode. It should be noted that the switch module 250 may also adopt other switch devices, and is not limited to the above-mentioned modes.

In some embodiments, the control unit 210 may also directly control, in a program control manner, a transmission path through which the transmission module 210 transmits the transmission signal when in different communication modes.

In the embodiment of the application, the adopted transmitting path can be selectively switched through the switch module, the physical mode is directly adopted for switching, the switching logic is simple and convenient, and the accuracy is higher.

Fig. 4 is a block diagram of a first transmit path in one embodiment. As shown in fig. 4, in one embodiment, the first transmitting path 230 may include a filter device 232, a switch device 234, a combiner 236 and a test socket 238, wherein the filter device 232 may be electrically connected to the switch device 234 and the transmitting module 220, respectively, and the combiner 236 may be electrically connected to the switch device 234 and the test socket 238, respectively.

The filter 232 may be configured to filter the transmission signal transmitted by the transmitting module 220.

In one embodiment, the filter device 232 may include a first filter, and the first filter may be configured to perform a first filtering process on the transmission signal transmitted by the transmission module 220 to attenuate harmonics in the transmission signal. In the first communication mode, the multiple of the transmitting frequency band is in the receiving frequency band, and harmonic waves generated by the transmitting signal can cause interference to the receiving end. Harmonic interference generated by the transmitting signal in the first communication mode to the receiving signal can be inhibited through the first filter, the sensitivity of the receiving end is prevented from being reduced, and the transmitting signal can meet the requirement of radio frequency indexes. Alternatively, the first filter may include a harmonic filter that removes harmonics of the transmission signal that may interfere with the reception signal, such as the endec mode of B3+ N78, and the second harmonic of the transmission signal of the B3 band may interfere with the reception signal of the N78 band, and the harmonic filter may remove the second harmonic of the transmission signal of the B3 band.

It should be noted that the filter-like device 232 may also include other filters, such as a band-pass filter, and the like, and is not limited to the first filter.

The switch device 234 may be configured to support an uplink Sounding Reference Signal (SRS) function, and the SRS may perform channel quality and estimation, beam management, and the like to assist uplink scheduling, uplink power control, and the like.

The combiner 236 may be configured to combine the multiple transmission signals of different frequency bands and output the combined transmission signals to an antenna, where the combined transmission signals may be transmitted to a network device through one antenna without switching among multiple different antennas.

The test socket 238 can be used to test the performance, electrical connection, etc. of each device on the transmission path, ensuring that each device meets the functional criteria.

It should be noted that the first transmission path 230 may also include other devices, not limited to the ones shown in fig. 4, and may also be omitted for some devices (e.g., the test socket 238).

As shown in fig. 5, in one embodiment, the first transmission path 230 may include a first sub-path 510 and a second sub-path 520, wherein the first sub-path 510 may be electrically connected to the transmission module 220, the first sub-path 520 may be electrically connected to the transmission module 220, further, the first sub-path 510 may be electrically connected to the switch module 250, and the second sub-path 510 may be electrically connected to the switch module 250.

In one embodiment, the first sub-path 510 is configured to support a transmission signal of a first network system, and the second sub-path 520 is configured to support a transmission signal of a second network system, where the first network system is different from the second network system. The network type refers to an accessed network type, and the first sub-path 510 and the second sub-path 520 may respectively support signal transmission of different network types, for example, the first sub-path 510 may be used to transmit a 4G signal, and the second sub-path 520 may be used to transmit a 5G signal, but is not limited thereto.

In another embodiment, the first sub-path 510 is configured to support transmission signals in a first transmission frequency band and the second sub-path 520 is configured to support transmission signals in a second transmission frequency band, the first transmission frequency band being different from the second transmission frequency band. In the first communication mode, a plurality of different frequency band combinations are usually adopted, and the first sub-path 510 and the second sub-path 520 can respectively support signal transmission of different transmission frequency bands, for example, the first sub-path 510 can be used for transmitting LB and MB signals, the second sub-path 520 can be used for transmitting HB signals, and the like.

Alternatively, the first sub-via 510 and the second sub-via 520 may be electrically connected to the same antenna, or may be electrically connected to different antennas, respectively, where the first sub-via 510 is electrically connected to the first antenna, and the second sub-via is electrically connected to the second antenna. The success rate and the stability of signal transmission can be improved by transmitting signals of different network systems or different frequency bands through different antennas.

Optionally, the first sub-path 510 and the second sub-path 520 may include the same or different devices, for example, the first communication mode is an endec mode with a frequency band combination of B3+ N78, wherein the first sub-path 510 may be configured to support transmission of B3 band signals, the second sub-path 520 may be configured to support transmission of N78 band signals, and since a transmission signal of B3 band may generate harmonic interference with a reception signal of N78, the first sub-path 510 may include a first filter, and the second sub-path may not include the first filter.

Optionally, the first sub-path 510 and the second sub-path 520 may also share some specific devices, for example, the first sub-path 510 and the second sub-path 520 may share the combiner and the test socket, and the combiner may combine the transmission signals of the two sub-paths and transmit the combined transmission signal to the same antenna, and transmit the combined transmission signal to the network device through the antenna, which may reduce hardware cost.

In some embodiments, the first transmission path 230 may include not only two sub-paths, but also a greater number of sub-paths for supporting signal transmission of different frequency bands in different network systems, for example, the sub-path 1 supports LB and MB signals in 4G, the sub-path 2 supports HB signals in 4G, the sub-path 3 supports LB and MB signals in 5G, the sub-path 4 supports HB signals in 5G, and the like, but is not limited thereto. The specific setting of the number of sub-channels can be set according to implementation requirements.

In this embodiment of the present application, the first transmission path may include sub-paths for supporting different network systems or different frequency bands, and different sub-paths are used to transmit signals of different network systems or different frequency bands in the first communication mode, so that interference of transmission signals between different network systems or different frequency bands may be reduced, and stability of signal transmission is ensured.

In some embodiments, the second transmit path 240 may not be a pure impedance circuit, and one or more devices may be included in the second transmit path 240. Fig. 6 is a block diagram of an rf circuit in another embodiment. As shown in fig. 6, the second transmission path 240 may include a second filter 242, which may be electrically connected with the transmission module 220. Further, the second filter 242 may be electrically connected with the switching module 250.

In the second communication mode, the switch module 250 is in the second closed state, and the transmitting module 220 is conducted with the second transmitting path 240. The second filter 242 is configured to perform a second filtering process on the transmission signal transmitted by the transmission module 220, so as to attenuate components of the transmission signal except for the target transmission frequency band. And the target transmitting frequency band is the transmitting frequency band in the second communication mode.

Optionally, the second filter 242 may include a band-pass filter, and the band-pass filter may be configured to allow the transmission signal in the target transmission frequency band to pass through, filter out components of the transmission signal other than the target transmission frequency band, reduce interference of the transmission signal transmitted on the second transmission path by signals in other frequency bands, and improve success rate and stability of transmission.

In some embodiments, the first transmit path 230 and the second transmit path 240 may share devices in order to save hardware cost. For example, the first transmission path 230 and the second transmission path 240 may share the test socket 238, and if the second transmission path 240 is a pure impedance circuit, one end of the pure impedance circuit may be connected to the switch module 250, and the other end of the pure impedance circuit may be connected to the test socket 238 in the first transmission path 230. In the second communication mode, the transmission signal transmitted by the transmission module 220 can directly reach the test socket 238 through the pure impedance circuit, and then be transmitted to the antenna.

Optionally, as shown in fig. 6, the second transmission path 240 includes a second filter 242, and the second filter 242 may be electrically connected to the test socket 238 of the first transmission path 230. The second filter 242 performs a second filtering process on the transmission signal sent by the transmission module 220, and then sends the filtered transmission signal to the test socket 238 for transmission to the antenna.

In some embodiments, the second transmission path 240 may also include a sub-path for supporting transmission signals of different network systems or different frequency bands, and the arrangement manner of the plurality of sub-paths in the second transmission path 240 may be similar to the arrangement manner of the sub-paths in the first transmission path 230, and is not repeated herein. Different sub-channels are adopted to transmit signals of different network systems or different frequency bands in the second communication mode, so that the interference of the transmitted signals between different network systems or different frequency bands can be reduced, and the stability of signal transmission is ensured.

In the embodiment of the present application, in the second communication mode, the transmission signal may be filtered by the second filter in the second transmission path 240 to filter signals outside the transmission frequency band in the second communication mode, so as to ensure the success rate and stability of signal transmission.

As shown in fig. 7, in one embodiment, a terminal device 700 is provided that may include the rf circuit 200 as described in the various embodiments above.

As shown in fig. 8, in an embodiment, a signal transmission method is provided, which can be applied to the terminal device described above, and the terminal device can include the radio frequency circuit 200 described in the foregoing embodiments. The signal transmission method may include the steps of:

step 810, when the terminal device is in the first communication mode, processing the transmission signal through the first transmission path, and sending the processed transmission signal to the network device, so as to suppress interference of the transmission signal in the first communication mode on the received signal.

And step 820, when the terminal device is in the second communication mode, sending a transmission signal to the network device through the second transmission path. The transmission signal in the second communication mode does not generate interference on the receiving signal, and the number of the devices included in the second path is smaller than that of the devices included in the first path.

In one embodiment, step 810 includes: when the terminal equipment is in a first communication mode, the control switch module is switched to a first closed state, so that the transmitting module is conducted with the first transmitting channel, a transmitting signal transmitted by the transmitting module is processed through the first transmitting channel, and the processed transmitting signal is sent to the network equipment.

Step 820, comprising: when the terminal equipment is in the second communication mode, the control switch module is switched to the second closed state, so that the transmitting module is conducted with the second transmitting channel, the transmitting signal transmitted by the transmitting module is processed through the second transmitting channel, and the processed transmitting signal is sent to the network equipment.

In one embodiment, the step of processing the transmission signal transmitted by the transmission module through the first transmission path includes: the first filtering processing is performed on the transmission signal through a first filter in the first transmission path to attenuate harmonics in the transmission signal, the harmonics in the transmission signal being in a reception frequency band in the first communication mode.

In one embodiment, the first transmit path includes a first sub-path and a second sub-path.

Step 810, comprising: when the terminal device is in the first communication mode, the transmission signal of the first network system/the first transmission frequency band is processed through the first sub-channel, the processed transmission signal is sent to the network device, the transmission signal of the second network system/the second transmission frequency band is processed through the second sub-channel, and the processed transmission signal is sent to the network device.

In one embodiment, the second transmit path includes a second filter. Step 820, comprising: and when the terminal equipment is in a second communication mode, performing second filtering processing on the transmitting signal through a second filter in a second transmitting path so as to attenuate components except the target transmitting frequency band in the transmitting signal, and sending the transmitting signal after filtering processing to the network equipment.

In the embodiment of the application, in the second communication mode, the transmission signal can be filtered through the second filter in the second transmission path to filter signals outside the transmission frequency band in the second communication mode, so that the success rate and stability of signal transmission can be ensured.

As shown in fig. 9, in an embodiment, a signal transmission apparatus 900 is provided, which is applicable to the terminal device described above, and the terminal device may include the radio frequency circuit 200 described in the foregoing embodiments. The signal transmission apparatus 900 may include a first transmitting module 910 and a second transmitting module 920.

The first transmitting module 910 is configured to, when the terminal device is in the first communication mode, process the transmitting signal through the first transmitting path, and send the processed transmitting signal to the network device, so as to suppress interference of the transmitting signal in the first communication mode on the receiving signal.

And a second transmitting module 920, configured to send a transmitting signal to the network device through the second transmitting path when the terminal device is in the second communication mode. The transmission signal in the second communication mode does not generate interference on the receiving signal, and the number of the devices included in the second path is smaller than that of the devices included in the first path.

In an embodiment, the first transmitting module 910 is further configured to, when the terminal device is in the first communication mode, control the switch module to switch to the first closed state, so that the transmitting module is conducted with the first transmitting path, process the transmitting signal transmitted by the transmitting module through the first transmitting path, and then send the processed transmitting signal to the network device.

The second transmitting module 920 is further configured to, when the terminal device is in the second communication mode, control the switch module to switch to the second closed state, so that the transmitting module is conducted with the second transmitting path, process the transmitting signal transmitted by the transmitting module through the second transmitting path, and send the processed transmitting signal to the network device.

In one embodiment, the first transmitting module 910 is further configured to perform a first filtering process on the transmission signal through a first filter in the first transmission path to attenuate harmonics in the transmission signal, where the harmonics in the transmission signal are in the receiving frequency band in the first communication mode.

In one embodiment, the first transmit path includes a first sub-path and a second sub-path. The first transmitting module 910 includes a first transmitting unit and a second transmitting unit.

And the first transmitting unit is used for processing the transmitting signal of the first network system/the first transmitting frequency band through the first sub-channel and transmitting the processed transmitting signal to the network equipment when the terminal equipment is in the first communication mode.

And the second transmitting unit is used for processing the transmitting signal of the second network system/the second transmitting frequency band through the second sub-channel and sending the processed transmitting signal to the network equipment.

In an embodiment, the second transmitting module 920 is further configured to, when the terminal device is in the second communication mode, perform a second filtering process on the transmission signal through a second filter in the second transmission path to attenuate components of the transmission signal except for the target transmission frequency band, and send the filtered transmission signal to the network device.

Fig. 10 is a block diagram of a terminal device in another embodiment. As shown in fig. 10, the terminal device may include: a radio frequency module 1010, a memory 1020, an input unit 1030, a display unit 1040, a sensor 1050, an audio circuit 1060, a WiFi (Wireless Fidelity) module 1070, a processor 1080, and a power supply 1090. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 10 is not intended to be limiting, and that terminal devices may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The radio frequency module 1010 may be configured to receive and transmit signals during information transmission and reception or during a call, and in particular, receive downlink information of a base station and then process the received downlink information to the processor 1080; in addition, the data for designing uplink is transmitted to the base station. Generally, the radio frequency module 1010 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency module 1010 may also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to global system for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), long term evolution, email, Short Message Service (SMS), etc.

The memory 1020 can be used for storing software programs and modules, and the processor 1080 executes various functional applications and data processing of the terminal device by operating the software programs and modules stored in the memory 1020. The memory 1020 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal device, and the like. Further, the memory 1020 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 1030 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the input unit 1030 may include a touch panel 1032 and other input devices 1034. Touch panel 1032, also referred to as a touch screen, may collect touch operations by a user (e.g., operations by a user on or near touch panel 1032 using a finger, a stylus, or any other suitable object or accessory) and drive the corresponding connection device according to a predetermined program. Alternatively, the touch panel 1032 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1080, and can receive and execute commands sent by the processor 1080. In addition, the touch panel 1032 may be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 1030 may include other input devices 1034 in addition to the touch panel 1032. In particular, other input devices 1034 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 1040 may be used to display information input by a user or information provided to the user and various menus of the terminal device. The display unit 1040 may include a display panel 1042, and optionally, the display panel 1042 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-Emitting diode (OLED), or the like. Further, the touch panel 1032 can cover the display panel 1042, and when the touch panel 1032 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1080 to determine the type of the touch event, and then the processor 1080 provides a corresponding visual output on the display panel 1042 according to the type of the touch event. Although in fig. 10, the touch panel 1032 and the display panel 1042 are implemented as two separate components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 1032 and the display panel 1042 may be integrated to implement the input and output functions of the terminal device.

The terminal device may also include at least one sensor 1050, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1042 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 1042 and/or the backlight when the terminal device moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration) for recognizing the attitude of the terminal device, and related functions (such as pedometer and tapping) for vibration recognition; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the terminal device, detailed description is omitted here.

Audio circuitry 1060, speaker 1062, microphone 1064 may provide an audio interface between the user and the terminal device. The audio circuit 1060 can transmit the electrical signal converted from the received audio data to the speaker 1062, and the electrical signal is converted into a sound signal by the speaker 1062 and output; on the other hand, the microphone 1064 converts the collected sound signal into an electrical signal, which is received by the audio circuit 1060 and converted into audio data, and then the audio data is processed by the audio data output processor 1080, and then the processed audio data is sent to another terminal device through the rf module 1010, or the audio data is output to the memory 1020 for further processing.

WiFi belongs to short-distance wireless transmission technology, and the terminal device can help the user send and receive e-mail, browse web pages, access streaming media, etc. through the WiFi module 1070, which provides the user with wireless broadband internet access.

The processor 1080 is a control center of the terminal device, connects various parts of the whole terminal device by using various interfaces and lines, and executes various functions of the terminal device and processes data by operating or executing software programs and/or modules stored in the memory 1020 and calling data stored in the memory 1020, thereby monitoring the whole terminal device. Optionally, processor 1080 may include one or more processing units; preferably, the processor 1080 may integrate an application processor, which handles primarily the operating system, user interfaces, applications, etc., and a modem processor, which handles primarily the wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1080.

In one embodiment, the modem processor and the rf module 1010 may constitute the rf circuit in the embodiment of the present application, the rf module 1010 may have a first transmission path and a second transmission path, and the modem processor may be used as a control unit in the rf circuit.

The terminal device also includes a power supply 1090 (e.g., a battery) for powering the various components, which may preferably be logically coupled to the processor 1080 via a power management system that may be configured to manage charging, discharging, and power consumption. Although not shown, the terminal device may further include a camera, a bluetooth module, and the like, which are not described herein.

In one embodiment, computer programs stored in memory 1020, when executed by processor 1080, cause processor 1080 to implement the methods described in the embodiments above.

The embodiment of the application discloses a computer readable storage medium, which stores a computer program, wherein the computer program realizes the method described in the above embodiments when being executed by a processor.

Embodiments of the present application disclose a computer program product comprising a non-transitory computer readable storage medium storing a computer program, and the computer program, when executed by a processor, implements the method as described in the embodiments above.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or the like.

Any reference to memory, storage, database, or other medium as used herein may include non-volatile and/or volatile memory. Suitable non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are all alternative embodiments and that the acts and modules involved are not necessarily required for this application.

In various embodiments of the present application, it should be understood that the size of the serial number of each process described above does not mean that the execution sequence is necessarily sequential, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated units, if implemented as software functional units and sold or used as a stand-alone product, may be stored in a computer accessible memory. Based on such understanding, the technical solution of the present application, which is a part of or contributes to the prior art in essence, or all or part of the technical solution, may be embodied in the form of a software product, stored in a memory, including several requests for causing a computer device (which may be a personal computer, a server, a network device, or the like, and may specifically be a processor in the computer device) to execute part or all of the steps of the above-described method of the embodiments of the present application.

The foregoing detailed description has provided a radio frequency circuit, a terminal device, a signal transmission method, and a storage medium, which are disclosed in the embodiments of the present application, and the present application applies specific examples to explain the principles and implementations of the present application. Meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A radio frequency circuit is characterized by comprising a transmitting module, a first transmitting path, a second transmitting path and a control unit, wherein the transmitting module is electrically connected with the first transmitting path and the second transmitting path respectively;

the control unit is configured to control the transmitting module to transmit a transmitting signal to the first transmitting path when the control unit is in a first communication mode, where the transmitting signal in the first communication mode interferes with a received signal;

the first transmitting path is used for filtering components which can interfere with a received signal in a transmitting signal transmitted by the transmitting module, and sending the processed transmitting signal to network equipment so as to inhibit the interference of the transmitting signal in the first communication mode on the received signal;

2. The circuit of claim 1, wherein the rf circuit further comprises a switch module electrically connected to the transmit module, the first transmit path and the second transmit path, respectively, and the control unit is electrically connected to the switch module;

the control unit is further used for sending a first switching signal to the switch module when the control unit is in a first communication mode;

the switch module is used for switching to a first closed state according to the first switching signal when receiving the first switching signal, so that the transmitting module is conducted with the first transmitting channel;

the control unit is further configured to send a second switching signal to the switch module when the control unit is in a second communication mode;

the switch module is further configured to switch to a second closed state according to the second switching signal when receiving the second switching signal, so that the transmitting module is conducted with the second transmitting path.

3. The circuit of claim 1, wherein the first transmit path comprises a first filter electrically connected to the transmit module;

the first filter is configured to perform first filtering processing on a transmission signal transmitted by the transmission module to attenuate a harmonic in the transmission signal, where the harmonic in the transmission signal is in a reception frequency band in the first communication mode.

4. The circuit of any one of claims 1 to 3, wherein the first transmission path comprises a first sub-path and a second sub-path, the first sub-path is electrically connected to the transmission module, and the second sub-path is electrically connected to the transmission module;

the first sub-channel is used for supporting a transmitting signal of a first network standard, the second sub-channel is used for supporting a transmitting signal of a second network standard, and the first network standard is different from the second network standard; or

The first sub-path is configured to support a transmission signal of a first transmission frequency band, the second sub-path is configured to support a transmission signal of a second transmission frequency band, and the first transmission frequency band is different from the second transmission frequency band.

5. The circuit of claim 1, wherein the second transmit path is a pure impedance circuit.

6. The circuit of claim 1, wherein the second transmit path includes a second filter, the second filter being electrically connected to the transmit module;

the second filter is configured to perform second filtering processing on the transmission signal transmitted by the transmission module to attenuate components in the transmission signal except for a target transmission frequency band, where the target transmission frequency band is a transmission frequency band in the second communication mode.

7. A terminal device, characterized in that it comprises a circuit according to any one of claims 1 to 6.

8. A signal transmission method is applied to a terminal device, and comprises the following steps:

when the terminal equipment is in a first communication mode, filtering components which can generate interference on a received signal in a transmitting signal through a first transmitting path, and sending the processed transmitting signal to network equipment so as to inhibit the interference of the transmitting signal in the first communication mode on the received signal;

and when the terminal equipment is in a second communication mode, transmitting a transmitting signal to the network equipment through a second transmitting path, wherein the transmitting signal in the second communication mode does not generate interference on a receiving signal, and the number of devices in the second transmitting path is smaller than that in the first transmitting path.

9. A terminal device, comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, causes the processor to carry out the method of claim 8.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of claim 8.