Interference processing method and device, chip, terminal equipment and storage medium

Abstract

The invention discloses an interference processing method and device, a chip, terminal equipment and a storage medium, the interference processing method is applied to a radio frequency system, and the radio frequency system comprises a first radio frequency circuit used for transmitting a first radio frequency signal on a first frequency band; the second radio frequency circuit is used for receiving a second radio frequency signal on a second frequency band; the method comprises the following step: when the interference intensity of a first radio frequency signal on a second radio frequency signal is greater than a preset threshold value in response, according to the uplink transmission proportion of the first radio frequency signal, performing rollback on the transmission power of the first radio frequency signal.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communication technology, and more specifically, to a method and apparatus for interference processing, a chip, a terminal device, and a storage medium. Background Art

[0002] With the development of communication technology, in order to improve the throughput of information exchange, terminal equipment usually has multiple radio frequency transceiver circuits to simultaneously transmit and receive radio frequency signals in multiple frequency bands.

[0003] However, the transmitted RF signal in the RF circuit may interfere with the received RF signal in other RF circuits, resulting in poor communication quality. Summary of the invention

[0004] The embodiments of the present application provide a method and apparatus for interference processing, a chip, a terminal device, and a storage medium. The following introduces various aspects involved in the embodiments of the present application.

[0005] In a first aspect, a method for interference processing is provided, which is applied to a radio frequency system, wherein the radio frequency system comprises: a first radio frequency circuit, used to transmit a first radio frequency signal on a first frequency band; and a second radio frequency circuit, used to receive a second radio frequency signal on a second frequency band; the method comprises: in response to the interference intensity of the first radio frequency signal on the second radio frequency signal being greater than a preset threshold, backing off the transmission power of the first radio frequency signal according to the uplink transmission ratio of the first radio frequency signal.

[0006] In a second aspect, a device for interference processing is provided, which is applied to a radio frequency system, and the radio frequency system includes: a first radio frequency circuit, used to transmit a first radio frequency signal on a first frequency band; a second radio frequency circuit, used to receive a second radio frequency signal on a second frequency band; the device includes: a back-off module, used to back off the transmission power of the first radio frequency signal according to the uplink transmission ratio of the first radio frequency signal in response to the interference intensity of the first radio frequency signal on the second radio frequency signal being greater than a preset threshold.

[0007] In a third aspect, a chip is provided, comprising: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method described in the first aspect.

[0008] In a fourth aspect, a terminal device is provided, comprising a processor, a memory and a transceiver, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to control the terminal device to execute the method described in the first aspect.

[0009] According to a fifth aspect, a computer-readable storage medium is provided, on which executable code is stored. When the executable code is executed, the method described in the first aspect can be implemented.

[0010] The embodiment of the present application provides a method for interference processing, which is applied to a radio frequency system, wherein the radio frequency system includes: a first radio frequency circuit for transmitting a first radio frequency signal on a first frequency band; a second radio frequency circuit for receiving a second radio frequency signal on a second frequency band; the interference processing method includes: when the interference intensity of the first radio frequency signal to the second radio frequency signal is greater than a preset threshold, the transmission power of the first radio frequency signal can be backed off according to the uplink transmission ratio of the first radio frequency signal. In other words, this solution can flexibly adjust the transmission power of the first radio frequency signal according to the uplink transmission ratio of the first radio frequency signal, so that the transmission power of the first radio frequency signal can be guaranteed as much as possible while reducing the interference to the second radio frequency signal, which helps to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a wireless communication system applied in an embodiment of the present application.

[0012] Figure 2 It is a flowchart of an interference processing method provided in an embodiment of the present application.

[0013] Figure 3 It is a structural diagram of a radio frequency system provided in one embodiment of the present application.

[0014] Figure 4 It is a flowchart of an interference handling method provided in another embodiment of the present application.

[0015] Figure 5 It is a flowchart of an interference processing method provided in yet another embodiment of the present application.

[0016] Figure 6 It is a schematic diagram of the structure of an interference processing device provided in one embodiment of the present application.

[0017] Figure 7 It is a structural diagram of a terminal device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0019] First, the application scenarios involved in the embodiments of the present application are introduced.

[0020] Communication System

[0021] Embodiments of the present application can be applied to various communication systems. For example, embodiments of the present application can be applied to global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, universal mobile telecommunication system (UMTS), wireless local area networks (WLAN), wireless fidelity (WiFi), fifth generation communication (5th-generation, 5G) system. Embodiments of the present application can also be applied to other communication systems, such as future communication systems. The future communication system may be, for example, a sixth-generation (6G) mobile communication system, or a satellite communication system.

[0022] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can not only support traditional cellular communications, but also support one or more other types of communications. For example, a communication system can support one or more of the following communications: device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), vehicle to vehicle (V2V) communication, and vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to communication systems that support the above-mentioned communication methods.

[0023] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0024] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum. The unlicensed spectrum can also be considered as a shared spectrum. Alternatively, the communication system in the embodiment of the present application can also be applied to an authorized spectrum. The authorized spectrum can also be considered as a dedicated spectrum.

[0025] The embodiments of the present application can be applied to a terrestrial communication network (TN) system, and can also be applied to a non-terrestrial network (NTN) system. As an example, the NTN system can include an NR-based NTN system and an Internet of Things (IoT)-based NTN system.

[0026] The communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0027] In some embodiments, the terminal device may be a station (STATION, ST) in a WLAN. In some embodiments, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR system), or a terminal device in a future-evolved public land mobile network (PLMN) network, etc.

[0028] In some embodiments, the terminal device may point to a device that provides voice and / or data connectivity to the user. For example, the terminal device may be a handheld device, a vehicle-mounted device, etc. with a wireless connection function. As some specific examples, the terminal device may be a mobile phone, a tablet computer (Pad), a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.

[0029] In some embodiments, the terminal device can be deployed on land. For example, the terminal device can be deployed indoors or outdoors. In some embodiments, the terminal device can be deployed on the water, such as on a ship. In some embodiments, the terminal device can be deployed in the air, such as on an airplane, a balloon, and a satellite.

[0030] In addition to the terminal device, the communication system may also include one or more network devices. The network device in the embodiment of the present application may be a device for communicating with the terminal device, and the network device may also be referred to as an access network device or a radio access network device. The network device may be, for example, a base station. The network device in the embodiment of the present application may refer to an access network (radio access network, RAN) node (or device) that connects the terminal device to a wireless network. Access network equipment can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device to device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication device that performs the base station function, a network side device in a 6G network, and a device that performs the base station function in a future communication system. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.

[0031] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0032] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU. The gNB may also include an AAU.

[0033] As an example and not limitation, in an embodiment of the present application, the network device may have a mobile characteristic, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments of the present application, the network device may also be a base station set up in a location such as land or water.

[0034] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0035] For example, Figure 1 The following is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. Figure 1 As shown, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices located in the coverage area.

[0036] Figure 1 An exemplary diagram shows one network device 110 and two terminal devices 120. In some embodiments of the present application, the communication system may include any number of network devices 110, and each network device 110 may include any number of terminal devices within its coverage area. The embodiments of the present application do not limit the number of network devices 110 and terminal devices 120 in the communication system 100.

[0037] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobile management entity, and other network entities, which are not limited in the embodiments of the present application.

[0038] The above mainly introduces the application scenarios involved in the embodiments of the present application. The following will continue to introduce the relevant terms involved in the implementation of the present application.

[0039] A subscriber identity module (SIM) is an integrated circuit card held by mobile users of the Global System for Mobile Communications (GSM) that enables terminal devices (such as smartphones) to connect to the GSM network and enjoy various services provided by network operators.

[0040] Dual SIM dual standby (DSDS), also commonly known as dual SIM single pass, refers to a terminal device with two user identification cards inserted, and both cards remain in standby mode at the same time. However, when one of the user identification cards is in a call state, it will completely monopolize all radio frequency resources of the terminal device, and the other user identification card can only disconnect from the network and cannot answer calls.

[0041] Dual SIM dual active (DSDA) means that two SIM cards are inserted into a terminal device, and both cards are in standby mode at the same time. When one SIM card is in a call state, the other SIM card maintains a continuous network connection and can make and receive calls.

[0042] With the development of communication technology, people are more frequently exchanging information through terminal devices. In order to improve the throughput of information exchange, terminal devices usually have multiple RF transceiver circuits to simultaneously transmit and receive RF signals in multiple frequency bands. For example, a dual-SIM dual-pass terminal device can conveniently use two different networks and two different numbers at the same time, such as meeting people's needs of making calls while playing games.

[0043] However, a radio frequency signal (eg, a second harmonic or multiple harmonics of a radio frequency signal) transmitted by one radio frequency circuit in a terminal device may interfere with a radio frequency signal received by another radio frequency circuit, resulting in poor communication quality.

[0044] As an example, a terminal device supporting dual-card dual-pass is used as an example. If the first user identification card (SIM1) performs wireless communication in the B3 or N3 frequency band, the frequency range of the transceiver radio frequency signal on the corresponding radio frequency circuit (for example, the first radio frequency circuit) is 1710MHz-1785MHz; the second user identification card (SIM2) performs wireless communication in the N78 frequency band, and the frequency range of the transceiver radio frequency signal on the corresponding radio frequency circuit (for example, the second radio frequency circuit) is 3300MHz-3800MHz. The first radio frequency circuit can transmit radio frequency signals in the B3 or N3 frequency band, and the frequency band where the second harmonic of the radio frequency signal is located is 3420MHz-3570MHz, and part of the frequency band just overlaps with N78. Therefore, the radio frequency signal transmitted on the first radio frequency circuit may interfere with the radio frequency signal received on the second radio frequency circuit (for example, 25dB-30dB interference will be generated). This coexistence interference will seriously affect the communication quality of the second user identification card, and the user experience is poor.

[0045] It should be noted that the radio frequency signal transmitted on the first radio frequency circuit will also interfere with the radio frequency signal transmitted on the second radio frequency circuit, but since the power of the radio frequency signal transmitted on the second radio frequency circuit is relatively large, its influence is relatively small and can usually be ignored. In comparison, the power of the radio frequency signal received on the second radio frequency circuit is relatively small, and its influence is relatively large.

[0046] In order to solve the above problems, an embodiment of the present application provides a method for interference processing, which is applied to a radio frequency system, and the radio frequency system includes: a first radio frequency circuit, which is used to transmit a first radio frequency signal on a first frequency band; a second radio frequency circuit, which is used to receive a second radio frequency signal on a second frequency band; the interference processing method includes: when the interference intensity of the first radio frequency signal to the second radio frequency signal is greater than a preset threshold, the transmission power of the first radio frequency signal can be backed off according to the uplink transmission ratio of the first radio frequency signal. In other words, this solution can flexibly adjust the transmission power of the first radio frequency signal according to the uplink transmission ratio of the first radio frequency signal, so that the transmission power of the first radio frequency signal can be guaranteed as much as possible while reducing the interference to the second radio frequency signal, which helps to improve the user experience.

[0047] It should be noted that the interference processing method in the embodiment of the present application can be applied to the radio frequency system in the terminal device, and the radio frequency system may include multiple radio frequency circuits, and the multiple radio frequency circuits may include, for example, a first radio frequency circuit and a second radio frequency circuit. The first radio frequency circuit may be any radio frequency circuit of the multiple radio frequency circuits, and the second radio frequency circuit may be any radio frequency circuit of the multiple radio frequency circuits except the first radio frequency circuit. For the convenience of description, the following is a detailed description of an example in which the first radio frequency circuit is used to transmit a first radio frequency signal on a first frequency band, and the second radio frequency circuit is used to receive a second radio frequency signal on a second frequency band. In some embodiments, the first radio frequency signal may refer to any radio frequency signal transmitted on the first radio frequency circuit, and the second radio frequency signal may refer to any radio frequency signal received on the second radio frequency circuit.

[0048] The embodiment of the present application does not specifically limit the first frequency band and the second frequency band. For example, the first frequency band may be N3 or B3, and the second frequency band may be N78; for another example, the first frequency band may be N8, and the second frequency band may be B3; for another example, the first frequency band may be N28, and the second frequency band may be B1.

[0049] It can be understood that the frequency band where the first radio frequency signal is located is the first frequency band, and the frequency band where the second radio frequency signal is located is the second frequency band.

[0050] It should be noted that there is no specific limitation on the RF circuit in the RF system of the embodiment of the present application. For example, each RF circuit may include one or more of the following devices: a power amplifier, a switching device, a duplexer, and a RF antenna.

[0051] It should be noted that each RF circuit in the RF system can receive and / or send RF signals within a certain frequency range. This application does not impose any specific restrictions on the frequency range in which each RF circuit can receive and / or send RF signals.

[0052] Combined with the following Figure 2 The interference handling method in the embodiment of the present application is described in detail. Figure 2 As shown, the interference processing method 200 may be used in the radio frequency system described above. The interference processing method 200 may include step S220.

[0053] In step S220, in response to the interference intensity of the first radio frequency signal on the second radio frequency signal being greater than a preset threshold, the transmit power of the first radio frequency signal is backed off according to the uplink transmission ratio of the first radio frequency signal.

[0054] The embodiment of the present application does not impose any specific limitation on the setting of the preset threshold, which can be set according to demand. For example, it can be set to 20dB or 25dB.

[0055] It can be understood that the uplink transmission ratio may refer to the ratio of the transmission time of the uplink transmission signal to the transmission cycle time within a signal transmission cycle. If the uplink RF signal is being transmitted all the time within a signal transmission cycle, it can be called the uplink transmission ratio of 100%, or it can be called the full duty cycle. However, usually, the uplink RF signal is not transmitted all the time within a signal transmission cycle. As an example, in a call service, the uplink transmission ratio may be 20% (the downlink reception ratio may be 80%); as another example, in a data service, the uplink transmission ratio may be 80% (i.e., 20% of the time, the RF signal is not transmitted).

[0056] It is understandable that backing off the transmission power of the first RF signal may refer to reducing the transmission power of the first RF signal. As an example, the normal transmission power of the first RF signal is 23dB, and if the transmission power of the first RF signal is backed off by 5dB, after the power backoff, the transmission power of the first RF signal is 18dB.

[0057] In some embodiments, the transmit power of the first RF signal may be backed off according to the service type of the first RF signal. It is understandable that, compared with obtaining the uplink transmission ratio of the first RF signal, the current service type of the RF signal is easier to obtain and more convenient to control.

[0058] It should be noted that the service type of the first RF signal may refer to the service type to which the data signal carried by the first RF signal belongs. For example, if the data signal carried by the first RF signal is a call data signal, the service type of the first RF signal is a call service. For another example, if the data signal carried by the first RF signal is a live data signal, the service type of the first RF signal is a live service. For another example, if the data signal carried by the first RF signal is a game data signal, the service type of the first RF signal is a game service. It can be understood that live services, game services, and video services can also be collectively referred to as data services. Generally, the amount of data in a call service is relatively small. In the case of a call service, the proportion of uplink transmission of the first RF signal will be relatively small. For example, the proportion of uplink transmission of the RF signal when executing a call service is usually less than 20%. In comparison, the amount of data required for a data service is relatively large. In the case of a data service, the proportion of uplink transmission of the first RF signal will be relatively large. For example, the proportion of uplink transmission of the RF signal when executing a data service is usually greater than 80%.

[0059] It is understandable that, the greater the uplink transmission proportion of the first RF signal, the greater the interference of the first RF signal to the second RF signal, and vice versa, the smaller the interference to the second RF signal.

[0060] In some embodiments, if the service type of the first RF signal is the first service type, the transmission power of the first RF signal is backed off to a first power value; if the service type of the first RF signal is the second service type, the transmission power of the first RF signal is backed off to a second power value; wherein the uplink transmission ratio of the RF signal of the first service type is lower than the uplink transmission ratio of the RF signal of the second service type, and the first power value is less than the second power value.

[0061] It can be understood that in the case of the first service type, the uplink transmission proportion of the first RF signal will be relatively small; in comparison, in the case of the second service type, the uplink transmission proportion of the first RF signal will be relatively large; as an example, the first service type can be a call service, and the second service type can be a data service.

[0062] In some embodiments, the first power value may be 5 dB, and the second power value may be 10 dB. Of course, the first power value and the second power value may also be set according to requirements, and this application does not impose any specific limitation on this.

[0063] In some embodiments, before responding to the interference intensity of the first RF signal on the second RF signal being greater than a preset threshold, the interference intensity of the first RF signal on the second RF signal can be detected to determine that the interference intensity of the first RF signal on the second RF signal is greater than the preset threshold. Of course, it is understandable that if the interference intensity of the first RF signal on the second RF signal is less than or equal to the preset threshold, it can be considered that the interference intensity has a relatively small impact on the second RF signal, and at this time, there is no need to back off the transmit power of the first RF signal.

[0064] In some embodiments, the interference intensity of the harmonic signal of the first RF signal on the second RF signal may be detected to determine whether the interference intensity of the first RF signal on the second RF signal is greater than a preset threshold.

[0065] The embodiment of the present application does not specifically limit the type of the harmonic signal of the first RF signal. For example, the harmonic signal of the first RF signal may refer to the second harmonic of the first RF signal, or may refer to multiple harmonic signals of the first RF signal (such as a third harmonic signal, a fourth harmonic signal, etc.).

[0066] In some embodiments, before responding that the interference strength of the first RF signal to the second RF signal is greater than a preset threshold, it can be determined whether to start a detection function for the interference strength of the first RF signal to the second RF signal based on the frequency range of the first frequency band and the frequency range of the second frequency band.

[0067] In some embodiments, if the frequency band where the harmonic signal of the first RF signal is located overlaps with the frequency band of the second RF signal, the detection function of the interference intensity of the first RF signal to the second RF signal can be activated. As an example, the first frequency band can be the B3 or N3 frequency band, and its frequency range is 1710MHz-1785MHz, and the second frequency band can be the N78 frequency band, and its frequency range is 3300MHz-3800MHz. According to the frequency range of the first frequency band, it can be deduced that the frequency band range where the second harmonic of the first RF signal is located is 3420MHz-3570MHz. It can be seen that the frequency band where the second harmonic signal of the first RF signal is located overlaps with the frequency band (second frequency band) of the second RF signal, which means that the first RF signal may interfere with the second RF signal. At this time, the detection function of the interference intensity of the first RF signal to the second RF signal can be activated to detect the interference intensity of the first RF signal to the second RF signal.

[0068] In some embodiments, in response to the interference intensity of the first RF signal on the second RF signal being greater than a preset threshold, the transmit power of the first RF signal may be backed off to a third power value. By backing off to a fixed third power value, the complexity of control may be further reduced.

[0069] It should be noted that the third power value can be set according to demand. For example, the third power value can be 10dB, and this application does not make any specific limitation on this.

[0070] In order to deepen the understanding of the above interference processing method, the radio frequency system in the embodiment of the present application is first introduced by taking the radio frequency system supporting the dual-card dual-pass function as an example. If the first user identification card (SIM1) performs wireless communication on the B3 or N3 frequency band; the second user identification card (SIM2) performs wireless communication on the N78 frequency band.

[0071] Figure 3 A possible schematic diagram of the structure of a radio frequency system is shown. Figure 3 As shown, the RF signal on the N78 frequency band is sent out from Tx0 after being modulated and up-converted inside the RF transceiver, and then amplified by the power amplifier (PA), and then switched to the N78 filter for filtering through the frequency band selection switch, and finally switched to the antenna through the antenna switch and radiated into space through the ANT0 antenna.

[0072] After the primary receive (PRx) circuit on the N78 frequency band receives the signal of N78 in space from the ANT0 antenna, it is switched to the receive filter of N78 through the antenna switch, and then enters the Rx2 port of the RF transceiver, and then goes through the internal down-conversion demodulation of the receiver to complete the signal processing.

[0073] The diversity receive (DRx) circuit on the N78 frequency band receives the signal of N78 in space from the ANT2 antenna, switches to the receiving filter of N78 through the antenna switch, and then enters the Rx7 port of the RF transceiver, and then goes through the internal down-conversion demodulation of the receiver to complete the signal processing.

[0074] The N78 MIMO receiving circuit can receive the signal of N78 in space from the ANT3 / ANT4 antenna, switch to the receiving filter of N78 through the antenna switch (not shown in the figure), and then enter the Rx8 / 9 port of the RF transceiver, and then go through the down-conversion demodulation inside the receiver to complete the signal processing.

[0075] The RF signal on the B3 / N3 frequency band is modulated and up-converted inside the RF transceiver and then sent out from Tx1. It is amplified by the power amplifier PA, then switched to the B3 / N3 filter through the frequency band selection switch, and finally switched to the antenna through the antenna switch and radiated into space through the ANT1 antenna.

[0076] The B3 / N3 PRx receiving circuit receives the signal of B3 / N3 in space from the ANT1 antenna, switches to the receiving filter of B3 / N3 through the antenna switch and enters the Rx4 port of the RF transceiver, and then goes through the down-conversion demodulation inside the receiver to complete the signal processing.

[0077] The B3 / N3 DRx receiving circuit receives the signal of B3 / N3 in space from the ANT2 antenna, switches to the receiving filter of B3 / N3 through the antenna switch and enters the Rx6 port of the RF transceiver, and then goes through the down-conversion demodulation inside the receiver to complete the signal processing.

[0078] It can be understood that the RF circuit and antenna used to transmit RF signals (such as the first RF signal) on B3 / N3 can form a first RF circuit; the RF circuit and antenna used to receive RF signals (such as the second RF signal) on N78 can form a second RF circuit.

[0079] In some embodiments, the radio frequency system may include one or more first radio frequency circuits, and the radio frequency system may also include one or more second radio frequency circuits, which is not specifically limited in the present application.

[0080] In order to deepen the understanding of the above interference processing methods, the following Figure 3 Taking the radio frequency system in the embodiment as an example, the interference processing method in the embodiment of the present application is illustrated.

[0081] Figure 4 Another interference handling method is shown, such as Figure 4 As shown, the interference processing method may include the following steps: S401-S404.

[0082] In step S401, the frequency band information of the terminal radio frequency dual-card dual-channel is obtained, for example, it can be obtained that SIM1 transmits a first radio frequency signal on the B3 or N3 frequency band; SIM2 receives a second radio frequency signal on the N78 frequency band.

[0083] In step S402, determine whether the dual-SIM frequency band combination belongs to the frequency band combination in the coexistence power backoff mechanism table according to the dual-SIM frequency band information. If the dual-SIM frequency band combination belongs to the frequency band combination in the coexistence power backoff mechanism table, jump to step S403, otherwise, jump to step S404.

[0084] In some embodiments, if the frequency band where the harmonic signal of the first RF signal is located overlaps with the frequency band of the second RF signal, the first frequency band (B3 or N3) and the second frequency band (N78) can be determined as a frequency band combination that meets the coexistence power backoff requirement, and all frequency band combinations that meet the requirement can be pre-stored in the memory of the terminal device to form a coexistence power backoff mechanism table. The coexistence power backoff mechanism table includes a power backoff value for the first RF signal (for example, 10 dB), and specifics can be found in Table 1.

[0085] Table 1

[0086] Interference Network Interference frequency band Disturbed Network Interference frequency band Causes of interference Power fallback value LTE B3 NR N78 Harmonic interference 10dB NR N3 NR N78 Harmonic interference 10dB

[0087] In step S403, in response to the interference intensity of the first RF signal on the second RF signal being greater than a preset threshold, power backoff of the first RF signal is triggered. For example, the transmit power of the first RF signal may be backed off by 10 dB.

[0088] In step S404, the current power backoff process ends.

[0089] According to the above content, in response to the interference intensity of the first RF signal on the second RF signal being greater than the preset threshold, the transmission power of the first RF signal can be directly backed off. By backing off a fixed power value (e.g., 10 dB), the complexity of control can be effectively reduced.

[0090] Figure 5 Another interference handling method is shown, such as Figure 5 As shown, the interference processing method may include the following steps: S501-S505.

[0091] In step S501, the frequency band information of the terminal radio frequency dual-card dual-channel is obtained. For example, it can be obtained that SIM1 transmits a first radio frequency signal on the B3 or N3 frequency band; and SIM2 receives a second radio frequency signal on the N78 frequency band.

[0092] In step S502, determine whether the dual-SIM frequency band combination belongs to the frequency band combination in the coexistence power backoff mechanism table according to the dual-SIM frequency band information. If the dual-SIM frequency band combination belongs to the frequency band combination in the coexistence power backoff mechanism table, jump to step S503, otherwise, jump to step S505.

[0093] In some embodiments, if the frequency band where the harmonic signal of the first RF signal is located overlaps with the frequency band of the second RF signal, it can be determined that the first frequency band (B3 or N3) and the second frequency band (N78) are frequency band combinations that meet the coexistence power backoff requirements, and all frequency band combinations that meet this requirement can be pre-stored in the memory of the terminal device to form a coexistence power backoff mechanism table.

[0094] In step S503, according to the service type of the radio frequency signal on the first frequency band, the corresponding Type value is determined. For example, if the service type of the radio frequency signal on the first frequency band is a voice service, the corresponding Type value is 0, and the power backoff value corresponding to the Type value may be 5dB; if the service type of the radio frequency signal on the first frequency band is a data service, the corresponding Type value is 1, and the power backoff value corresponding to the Type value may be 10dB, as shown in Table 2.

[0095] Table 2

[0096] Interference Network Interference frequency band Disturbed Network Interference frequency band Causes of interference Power fallback value Type value LTE B3 NR N78 Harmonic interference 5dB 0 NR N3 NR N78 Harmonic interference 5dB 0 LTE B3 NR N78 Harmonic interference 10dB 1 NR N3 NR N78 Harmonic interference 10dB 1

[0097] In step S504, in response to the interference intensity of the first radio frequency signal on the second radio frequency signal being greater than a preset threshold, a power backoff mechanism is triggered, and backoff is performed according to a power backoff value corresponding to the Type value in the coexistence power backoff mechanism table.

[0098] As an example, if the service type of the first radio frequency signal is voice service, the uplink transmission ratio is low at this time, and the power backoff value (5dB) corresponding to Type0 can be called to backoff the transmission power of the first radio frequency signal.

[0099] As another example, if the service type of the first RF signal is a data service (such as a live broadcast service), and the uplink transmission accounts for a high proportion, the power backoff value (10dB) corresponding to Type1 can be called to backoff the transmission power of the first RF signal.

[0100] In step S505, the current power backoff process ends.

[0101] From the above content, it can be seen that the transmission power of the first RF signal is backed off according to the service type of the first RF signal, so that on the basis of normal business on the N78 frequency band, the power backoff amount for B3 / N3 can be reduced as much as possible, thereby improving the call quality on the B3 / N3 frequency band.

[0102] Combination of the above Figures 1 to 5 The method embodiment of the present application is described in detail. Figure 6 to Figure 7 The device embodiment of the present application is described in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0103] Figure 6 FIG. 6 is a schematic diagram of the structure of an interference processing device provided by an embodiment of the present application. The interference processing device 600 can be applied to a radio frequency system, the radio frequency system comprising: a first radio frequency circuit for transmitting a first radio frequency signal on a first frequency band; a second radio frequency circuit for receiving a second radio frequency signal on a second frequency band; the device comprising: a fallback module 610.

[0104] The back-off module 610 is configured to back off the transmission power of the first RF signal according to the uplink transmission ratio of the first RF signal in response to the interference intensity of the first RF signal on the second RF signal being greater than a preset threshold.

[0105] Optionally, the step of rebating the transmit power of the first radio frequency signal according to an uplink transmission ratio of the first radio frequency signal includes: rebating the transmit power of the first radio frequency signal according to a service type of the first radio frequency signal.

[0106] Optionally, the transmission power of the first RF signal is backed off according to the service type of the first RF signal, including: if the service type of the first RF signal is the first service type, the transmission power of the first RF signal is backed off to a first power value; if the service type of the first RF signal is the second service type, the transmission power of the first RF signal is backed off to a second power value; wherein the uplink transmission ratio of the RF signal of the first service type is lower than the uplink transmission ratio of the RF signal of the second service type, and the first power value is less than the second power value.

[0107] Optionally, the first service type is a call service, and the second service type is a data service.

[0108] Optionally, the device 600 also includes: a detection module 620, which is used to, before the response to the interference strength of the first RF signal on the second RF signal being greater than a preset threshold, the method also includes: detecting the interference strength of the first RF signal on the second RF signal, and determining that the interference strength of the first RF signal on the second RF signal is greater than the preset threshold.

[0109] Optionally, the detection module 620 is used to detect interference intensity of the harmonic signal of the first radio frequency signal on the second radio frequency signal, and determine that the interference intensity of the first radio frequency signal on the second radio frequency signal is greater than a preset threshold.

[0110] Optionally, the device 600 also includes: a determination module 630, which is used to determine whether to start a detection function of the interference intensity of the first radio frequency signal to the second radio frequency signal based on the frequency range of the first frequency band and the frequency range of the second frequency band before the response to the interference intensity of the first radio frequency signal to the second radio frequency signal is greater than a preset threshold.

[0111] Optionally, the determination module 630 is configured to: if a frequency band where the harmonic signal of the first radio frequency signal is located overlaps with the second frequency band, start a function of detecting interference intensity of the first radio frequency signal on the second radio frequency signal.

[0112] Optionally, the first frequency band is N3 or B3, and the second frequency band is N78; or, the first frequency band is N8, and the second frequency band is B3; or, the first frequency band is N28, and the second frequency band is B1.

[0113] Combine the following Figure 7 This is an introduction to a terminal device 700 in an embodiment of the present application. The terminal device 700 can be used to implement the method described in the above method embodiment.

[0114] It should be understood that the terminal device 700 can be applied to any type of terminal device mentioned above.

[0115] The terminal device 700 may include one or more processors 710. The processor 710 may support the terminal device 700 to implement the method described in the above method embodiment.

[0116] The processor 710 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0117] The terminal device 700 may further include one or more memories 720. The memory 720 stores a program, which can be executed by the processor 710 to control the terminal device 700 to execute the method described in the above method embodiment. The memory 720 may be independent of the processor 710 or integrated in the processor 710.

[0118] The memory 720 may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the nonvolatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, the memory 720 may also be various types of random access memory (RAM), such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous-link DRAM (SLDRAM) and direct ram-bus RAM (DR RAM).

[0119] The terminal device 700 may further include a transceiver 730. The processor 710 may communicate with other devices through the transceiver 730. For example, the processor 710 may transmit and receive data with other devices through the transceiver 730.

[0120] The present application also provides a chip in an embodiment, including a processor, which can be used to call and run a computer program from a memory, so that a device equipped with the chip performs the method described in the above method embodiment. It is understood that the processor can be any type of processor mentioned above. It is understood that the memory can be independent of the chip or integrated in the chip.

[0121] The embodiment of the present application also provides a machine-readable storage medium for storing a program, and the program enables a computer to execute the method in each embodiment of the present application.

[0122] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The program enables a computer to execute the method in each embodiment of the present application.

[0123] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a machine-readable storage medium, or transmitted from one machine-readable storage medium to another machine-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The machine-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0124] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments of the present disclosure can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software 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 the present disclosure.

[0125] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, 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, which can be electrical, mechanical or other forms.

[0126] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0127] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0128] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for interference handling, characterized in that: The method is applied to a radio frequency system, and the radio frequency system comprises: A first radio frequency circuit, used for transmitting a first radio frequency signal in a first frequency band; A second radio frequency circuit, used for receiving a second radio frequency signal in a second frequency band; The method comprises: In response to the interference intensity of the first radio frequency signal on the second radio frequency signal being greater than a preset threshold, the transmission power of the first radio frequency signal is backed off according to the uplink transmission proportion of the first radio frequency signal.

2. The method according to claim 1, characterized in that The step of reducing the transmit power of the first radio frequency signal according to the uplink transmit ratio of the first radio frequency signal includes: The transmit power of the first radio frequency signal is backed off according to the service type of the first radio frequency signal.

3. The method according to claim 2, characterized in that The step of backing off the transmit power of the first radio frequency signal according to the service type of the first radio frequency signal includes: If the service type of the first radio frequency signal is the first service type, returning the transmit power of the first radio frequency signal to a first power value; If the service type of the first radio frequency signal is the second service type, returning the transmit power of the first radio frequency signal to a second power value; The uplink transmission ratio of the radio frequency signal of the first service type is lower than the uplink transmission ratio of the radio frequency signal of the second service type, and the first power value is lower than the second power value.

4. The method according to claim 3, characterized in that: The first service type is a call service, and the second service type is a data service.

5. The method according to claim 1, characterized in that Before the response that the interference intensity of the first radio frequency signal on the second radio frequency signal is greater than a preset threshold, the method further includes: The interference intensity of the first radio frequency signal on the second radio frequency signal is detected, and it is determined that the interference intensity of the first radio frequency signal on the second radio frequency signal is greater than a preset threshold.

6. The method according to claim 5, characterized in that The detecting the interference intensity of the first radio frequency signal on the second radio frequency signal, and determining that the interference intensity of the first radio frequency signal on the second radio frequency signal is greater than a preset threshold, includes: The interference intensity of the harmonic signal of the first radio frequency signal on the second radio frequency signal is detected, and it is determined that the interference intensity of the first radio frequency signal on the second radio frequency signal is greater than a preset threshold.

7. The method according to claim 1, characterized in that Before the response that the interference intensity of the first radio frequency signal on the second radio frequency signal is greater than a preset threshold, the method further includes: Whether to start a function of detecting the interference intensity of the first radio frequency signal to the second radio frequency signal is determined according to the frequency range of the first frequency band and the frequency range of the second frequency band.

8. The method according to claim 7, characterized in that The determining whether to start a detection function of interference intensity of the first radio frequency signal to the second radio frequency signal according to the frequency range of the first frequency band and the frequency range of the second frequency band includes: If the frequency band where the harmonic signal of the first radio frequency signal is located overlaps with the second frequency band, a function of detecting the interference intensity of the first radio frequency signal on the second radio frequency signal is started.

9. The method according to any one of claims 1 to 8, characterized in that The first frequency band is N3 or B3, and the second frequency band is N78; or The first frequency band is N8, and the second frequency band is B3; or The first frequency band is N28, and the second frequency band is B1.

10. An interference processing device, characterized in that: The device is applied to a radio frequency system, and the radio frequency system comprises: A first radio frequency circuit, used for transmitting a first radio frequency signal in a first frequency band; A second radio frequency circuit, used for receiving a second radio frequency signal in a second frequency band; The device comprises: A back-off module is used to back off the transmission power of the first radio frequency signal according to the uplink transmission proportion of the first radio frequency signal in response to the interference intensity of the first radio frequency signal on the second radio frequency signal being greater than a preset threshold.

11. A chip, characterized in that: include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 9.

12. A terminal device, characterized in that: include: A processor, a memory and a transceiver, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to control the terminal device to execute the method as described in any one of claims 1 to 9.

13. A computer-readable storage medium having executable code stored thereon, characterized in that: The code is used to implement the method according to any one of claims 1 to 9.

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