CN116744392B

CN116744392B - Dual-card communication method and device and terminal equipment

Info

Publication number: CN116744392B
Application number: CN202311026987.XA
Authority: CN
Inventors: 王智鹏; 朱龙昶
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2023-11-03
Anticipated expiration: 2043-08-16
Also published as: CN116744392A

Abstract

The application discloses a double-card communication method, a device and a terminal device, belonging to the technical field of communication, wherein the method comprises the steps of determining an optimal DSDA frequency band combination based on the radio frequency capability of the terminal device and the network signal strength of the position of the terminal device in an initial network residence stage; under the condition that the position of the terminal equipment is changed, responding to the condition that the terminal equipment enters a DSDA state, and acquiring performance rollback parameters of data service of the terminal equipment; under the condition that the performance rollback parameter meets the rollback condition, the optimal DSDA frequency band combination is redetermined based on the radio frequency capability of the terminal equipment and the network signal strength of the first position where the terminal equipment is positioned; and performing a band calibration operation on the first communication card and the second communication card based on the redetermined optimal DSDA band combination. Therefore, the DSDA frequency band combination determined by the method can reduce the influence of the call service of the auxiliary card on the data service of the main card to the greatest extent.

Description

Dual-card communication method and device and terminal equipment

Technical Field

The present application belongs to the field of communication technologies, and in particular, to a dual-card communication method, device and terminal equipment.

Background

With the development of terminal technology, the dual card terminal device starts to be applied. Wherein two communication cards are provided in the dual card terminal device. The user can communicate using two communication cards in the dual card terminal device. In general, two communication cards may be divided into a main card, which may be used to perform a data service, and a sub card, which may be used to perform a call service.

To enhance the user experience, a dual card dual pass (dual sin dual active, DSDA) mode is typically supported for dual card terminal devices. In the DSDA mode, two communication cards can perform data service and call service simultaneously. The DSDA mode may include two states, DR-DSDS (dual receive DSDS, dual receive dual card dual standby) and DSDA states, among others. The DR-DSDS state means that only one of the two communication cards is in a connected state, but both communication cards have receiving capability. The DSDA state refers to a state in which both communication cards are in a connected state, wherein both communication cards perform data traffic and call traffic, respectively.

At present, when terminal equipment is switched from a DR-DSDS state to a DSDA state, if the combination of DSDA frequency bands selected by the terminal equipment to be connected is poor in performance, the data transmission rate of a main card may be affected, and the user experience is seriously affected.

Disclosure of Invention

The application provides a double-card communication method, a double-card communication device and terminal equipment, which can select the DSDA frequency band combination with optimal performance, so that the data transmission quality of a main card is not influenced by a sub card as much as possible, and the user experience is improved.

In a first aspect, the present application provides a dual-card communication method, which is applied to a terminal device supporting dual-card dual-pass DSDA, the method comprising: responding to the terminal equipment entering a DSDA state, and acquiring performance rollback parameters of data service of the terminal equipment; under the condition that the performance rollback parameter meets rollback conditions, determining a first DSDA frequency band combination in a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment and the network signal strength of a first position where the terminal equipment is located; the first DSDA frequency band combination comprises a first frequency band corresponding to a first communication card in the terminal equipment and a second frequency band corresponding to a second communication card in the terminal equipment; performing a band calibration operation on the first communication card and the second communication card based on the first DSDA band combination; the frequency band corresponding to the calibrated first communication card is the first frequency band, and the frequency band corresponding to the calibrated second communication card is the second frequency band.

In this way, the application not only considers the network signal strength of the position of the terminal equipment, but also considers the radio frequency capability of the terminal equipment under different DSDA frequency band combinations, for example, the coupling mode of the transmitting antennas of two communication cards in the DSDA state, the transmitting channel switching capability of the main card, the number of receiving channels of the main card in the DR-DSDS state, the number of receiving channels of the main card and the rollback parameters of the like. Therefore, the influence of the call service of the auxiliary card on the data service of the main card can be reduced to the greatest extent by integrating the radio frequency capability of the terminal equipment and the DSDA frequency band combination determined by the network signal strength of the position of the terminal equipment.

In one implementation manner, the determining, based on the radio frequency capability of the terminal device and the network signal strength of the first location where the terminal device is located, a first DSDA frequency band combination from a plurality of DSDA frequency band combinations includes: determining a radio frequency capability score of each DSDA frequency band combination in the plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment; determining a signal strength score for each DSDA frequency band combination based on the network signal strength of the first location; the first DSDA band combination is determined from the plurality of DSDA band combinations based on the radio frequency capability scores and the signal strength scores for each of the DSDA band combinations.

In this way, the determination of the first DSDA band combination may be facilitated by quantifying the radio frequency capabilities and network signal strengths in a scored manner.

In one implementation, the determining the first DSDA band combination from the plurality of DSDA band combinations based on the radio frequency capability score and the signal strength score for each of the DSDA band combinations includes: determining a composite score for each DSDA frequency band combination based on the radio frequency capability score and the signal strength score for each DSDA frequency band combination; the first DSDA band combination is determined from the plurality of DSDA band combinations based on the composite score of the DSDA band combination.

Thus, the influence of each DSDA frequency band combination on the data transmission quality of the main card is characterized based on the comprehensive score of each DSDA frequency band combination. For example, the higher the composite score, the less its impact on the data transmission quality of the host card.

In one implementation, the determining the first DSDA band combination from the plurality of DSDA band combinations based on the composite score of the DSDA band combination includes: and determining a frequency band combination with the highest comprehensive score in the plurality of DSDA frequency band combinations as the first DSDA frequency band combination based on the comprehensive score of the DSDA frequency band combination.

In this way, the terminal device can select the DSDA frequency band combination having the least influence on the data transmission quality of the main card based on the composite score.

In one implementation manner, the first communication card is configured to perform a data service, the second communication card is configured to perform a call service, and the determining the first DSDA frequency band combination from the plurality of DSDA frequency band combinations based on the composite score of the DSDA frequency band combination includes: determining the frequency band of the second communication card currently residing in the network; and determining the frequency band of the call service in the plurality of DSDA frequency band combinations as the frequency band of the second communication card currently residing in the network and the frequency band combination with the highest comprehensive score as the first DSDA frequency band combination based on the comprehensive score of the DSDA frequency band combination.

Therefore, on the premise that the communication quality of the second communication card is not influenced, the data service quality of the first communication card is not seriously influenced as much as possible on the basis of the optimal DSDA frequency band combination determined by the frequency band of the second communication card currently residing in the network, so that the comprehensive experience of a user is improved.

In one implementation manner, before the responding to the terminal device entering the DSDA state and acquiring the performance rollback parameter of the data service of the terminal device, the method further includes: under the condition that the terminal equipment is initially network-resident, determining a second DSDA frequency band combination from the plurality of DSDA frequency band combinations according to the radio frequency capability of the terminal equipment and the network signal strength of a second position where the terminal equipment is positioned; wherein the second position is a different position than the first position; the second DSDA frequency band combination comprises a third frequency band corresponding to the first communication card and a fourth frequency band corresponding to the second communication card; and executing initial network residence operation on the terminal equipment based on the second DSDA frequency band combination, wherein the frequency band corresponding to the first communication card after initial network residence is the third frequency band, and the frequency band corresponding to the second communication card after initial network residence is the fourth frequency band.

In this way, in the initial network residence stage, based on the radio frequency capability of the terminal equipment and the network signal strength of the position of the terminal equipment, an optimal DSDA frequency band combination is determined in a plurality of DSDA frequency band combinations, and the terminal equipment is resided in the optimal DSDA frequency band combination, so that a user enjoys optimal performance experience after initial network residence.

In one implementation manner, the obtaining, in response to the terminal device entering the DSDA state, a performance backoff parameter of a data service of the terminal device includes: and under the condition that the position of the terminal equipment is changed, responding to the condition that the terminal equipment enters a DSDA state, and acquiring the performance rollback parameter of the data service of the terminal equipment.

In one implementation, the radio frequency capability of the terminal device includes at least one of: transmitting antenna coupling mode of the first communication card and the second communication card in DSDA state, transmitting channel switching capability of the first communication card, receiving channel number of the first communication card in dual-receiving dual-standby state and receiving channel number rollback parameter of the first communication card.

In one implementation manner, the performance backoff parameter includes a network transmission rate decrease magnitude and/or a bit error rate increase magnitude, and when the performance backoff parameter meets a backoff condition, determining a first DSDA frequency band combination from a plurality of DSDA frequency band combinations based on a radio frequency capability of the terminal device and a network signal strength of a first location where the terminal device is located, including: and under the condition that the network transmission rate reduction amplitude is higher than a network transmission rate back-off threshold value and/or the bit error rate increase amplitude is higher than a bit error rate back-off threshold value, determining a first DSDA frequency band combination in a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment and the network signal strength of a first position where the terminal equipment is located.

Thus, the network transmission rate and the error rate can represent the transmission performance of the service data. Therefore, whether the re-optimal DSDA frequency band combination is needed or not can be judged through the network transmission rate and the error rate.

In one implementation manner, the performing, based on the first DSDA frequency band combination, a frequency band calibration operation on the first communication card and the second communication card includes: searching a first cell comprising the first DSDA frequency band combination; and under the condition that the first cell is searched, selecting the first cell, controlling the first communication card to reside in the first frequency band, and controlling the second communication card to reside in the second frequency band.

In this way, if the terminal device moves to the first location without a large change in location, the first cell can be generally searched. Thus, this implementation may be applicable to this case.

In one implementation, the method further comprises: under the condition that the first cell cannot be searched, determining a third DSDA frequency band combination based on the radio frequency capability of the terminal equipment and the network signal strength of a third position where the terminal equipment is located; the third DSDA frequency band combination comprises a fifth frequency band corresponding to the first communication card and a sixth frequency band corresponding to the second communication card; searching a second cell comprising the third DSDA frequency band combination; and under the condition that the second cell is searched, selecting the second cell, controlling the first communication card to reside in the fifth frequency band, and controlling the second communication card to reside in the sixth frequency band.

Thus, if the terminal device continues to move after moving to the first position, and the moving speed of the terminal device is relatively high, the terminal device may be located at a position far from the first position when searching the first cell. Thus, the first cell may not be searched at a location further from the first location. Thus, this implementation may be applicable to this case.

In a second aspect, the present application provides a dual card communication apparatus, the apparatus comprising: the acquisition module is used for responding to the terminal equipment entering a DSDA state and acquiring performance rollback parameters of data service of the terminal equipment; the DSDA frequency band combination determining module is used for determining a first DSDA frequency band combination in a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment and the network signal strength of a first position where the terminal equipment is located under the condition that the performance rollback parameter meets the rollback condition; the first DSDA frequency band combination comprises a first frequency band corresponding to a first communication card in the terminal equipment and a second frequency band corresponding to a second communication card in the terminal equipment; the frequency band calibration module is used for executing frequency band calibration operation on the first communication card and the second communication card based on the first DSDA frequency band combination; the frequency band corresponding to the calibrated first communication card is the first frequency band, and the frequency band corresponding to the calibrated second communication card is the second frequency band.

In a third aspect, the present application provides a terminal device, wherein the terminal device comprises a memory and a processor; the memory is coupled to the processor; the memory is for storing computer program code comprising computer instructions which, when executed by the processor, cause the terminal device to perform the method according to any of the first aspects.

In a fourth aspect, the present application provides a computer readable storage medium having stored therein a computer program or instructions which, when run on a computer, cause the computer to perform the method according to any of the first aspects.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a scene diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic hardware structure of a terminal device according to an embodiment of the present application;

fig. 3 is a software architecture diagram of a terminal device according to an embodiment of the present application;

FIG. 4 is a flow chart of a dual card communication method according to an embodiment of the present application;

FIG. 5 is a flowchart of a method for determining an optimal DSDA frequency band combination according to an embodiment of the present application;

FIG. 6 is a flowchart of another method for determining an optimal DSDA band combination according to an embodiment of the present application;

FIG. 7 is a flowchart of another method for determining an optimal DSDA band combination according to an embodiment of the present application;

fig. 8 is a flowchart of a frequency band calibration method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a dual-card communication device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application will be described below with reference to the accompanying drawings.

As shown in fig. 1, the communication system includes a terminal device 100 and a network device 200, where the terminal device 100 includes two communication cards, a main card and a sub card, respectively. Both the primary and secondary cards may communicate with the network device 200. For example, a primary card may be in data traffic communication with network device 200 and a secondary card may be in call traffic communication with network device 200.

It should be noted that fig. 1 illustrates that the primary card and the secondary card are both in communication with the same network device 200, and the primary card and the secondary card may also be respectively in communication with two different network devices 200, which is not limited in this application.

The communication card may be a subscriber identity module (subscriber identity module, SIM) card, a universal subscriber identity card (universal subscriber identity module, USIM), an eSIM card, etc., which the present application is not limited to.

In general, a dual card dual standby (dual sim dual standby, DSDS) mode or a dual card dual pass (dual sin dual active, DSDA) mode may be supported for the dual card terminal device 100. In the DSDS mode, the terminal device 100 does not support dual card service concurrency, i.e., only one of the two communication cards is in an operating state at the same time. For example, in the DSDS mode, when the sub-card performs a call service, the main card cannot perform a data service. For another example, in the DSDS mode, when the main card performs the data service, the sub card may receive the incoming call, but the incoming call interrupts the data service of the main card, so that the main card cannot perform the data service.

In DSDA mode, two communication cards can conduct data traffic and call traffic simultaneously. For example, in DSDA mode, the main card may perform a call service while the sub card performs a data service, and the call service of the sub card may not interrupt the data service of the main card.

It can be seen that the user experience of DSDA mode is higher compared to DSDS mode. Therefore, in order to enhance the user experience, DSDA mode is generally employed for the dual card terminal device 100.

The DSDA mode may include two states, DR-DSDS (dual receive DSDS, dual receive dual card dual standby) and DSDA states. The DR-DSDS state means that only one of the two communication cards is in a connected state, but both communication cards have receiving capability. The DSDA state refers to a state in which both communication cards are in a connected state, wherein both communication cards perform data traffic and call traffic, respectively.

Illustratively, when the terminal device 100 is in the DR-DSDS state, the main card performs data service, and the sub card is in the idle state. When the sub-card receives the incoming call, the terminal device 100 enters a DSDA state from a DR-DSDS state, that is, the main card performs a data service, and the sub-card performs a call service.

In the process that the terminal device 100 enters the DSDA state from the DR-DSDS state, the terminal device 100 selects one DSDA frequency band combination from a plurality of sets of DSDA frequency band combinations supported by the terminal device 100, so that two communication cards respectively reside in two frequency bands in the selected DSDA frequency band combination. Thus, the two communication cards can respectively send and receive signals in the respective frequency bands so as to realize data service and call service.

Under different DSDA frequency band combinations, the performance of the main card executing the data service is different. For example, in some DSDA frequency band combinations, the data transmission quality of the main card is significantly reduced, so that the user can obviously feel that the data service of the terminal device 100 is blocked, thereby affecting the user experience.

Therefore, how to select a suitable DSDA frequency band combination, so that after entering a DSDA state, the data transmission quality of the main card is not obviously affected by the call service of the sub-card is a problem that needs to be solved at present.

In one implementation, a DSDA frequency band combination with the best network signal strength may be selected from a plurality of DSDA frequency band combinations based on the network signal strength at the location of the terminal device. However, in practical application, it is found that the DSDA frequency band combination selected in this way still has a high probability that the data transmission quality of the main card is obviously reduced.

Further, the inventors found that: when the DSDA frequency band combination selected in the above manner significantly degrades the data transmission quality of the main card, the radio frequency capability of the DSDA frequency band combination itself is generally poor. Illustratively, although the network signal of the DSDA frequency band combination selected in the above manner is preferable, coupling of two frequency bands in the selected DSDA frequency band combination is serious (for example, the transmitting antenna coupling manner of the two frequency bands in the selected DSDA frequency band combination is a manner of sharing transmission (tx_sharing)), thereby affecting the data transmission quality of the main card.

In order to solve the above-mentioned problems, an embodiment of the present application provides a dual-card communication method, which determines a DSDA frequency band combination from a plurality of DSDA frequency band combinations based on radio frequency capability of a terminal device and network signal strength of a location where the terminal device is located. That is, in the embodiment of the present application, not only the network signal strength of the location of the terminal device is considered, but also the radio frequency capability of the terminal device under different DSDA frequency band combinations, for example, the coupling mode of the transmitting antennas of the two communication cards in the DSDA state, the switching capability of the transmitting channels of the main card, the number of receiving channels of the main card in the DR-DSDS state, the number of receiving channels of the main card, and the back-off parameters of the number of receiving channels of the main card are considered. Therefore, the influence of the call service of the auxiliary card on the data service of the main card can be reduced to the greatest extent by integrating the radio frequency capability of the terminal equipment and the DSDA frequency band combination determined by the network signal strength of the position of the terminal equipment.

The double-card communication method provided by the embodiment of the application can be applied to any terminal equipment capable of supporting DSDA. For example, the terminal device may be a mobile phone, a smart watch, a smart bracelet, or a tablet computer, and the embodiment of the present application does not limit the specific type of the terminal device.

Fig. 2 is a schematic structural diagram of a terminal device 100 according to an embodiment of the present application.

As shown in fig. 2, the terminal device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display 194, a user identification module (subscriber identification module, SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It is to be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the terminal device 100. In other embodiments of the application, terminal device 100 may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

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

The I2C interface is a bi-directional synchronous serial bus comprising a serial data line (SDA) and a serial clock line (derail clock line, SCL). In some embodiments, the processor 110 may contain multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, charger, flash, camera 193, etc., respectively, through different I2C bus interfaces. For example: the processor 110 may be coupled to the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through an I2C bus interface to implement a touch function of the terminal device 100.

The I2S interface may be used for audio communication. In some embodiments, the processor 110 may contain multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 via an I2S bus to enable communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may transmit an audio signal to the wireless communication module 160 through the I2S interface, to implement a function of answering a call through the bluetooth headset.

PCM interfaces may also be used for audio communication to sample, quantize and encode analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface. In some embodiments, the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface to implement a function of answering a call through the bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

The UART interface is a universal serial data bus for asynchronous communications. The bus may be a bi-directional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is typically used to connect the processor 110 with the wireless communication module 160. For example: the processor 110 communicates with a bluetooth module in the wireless communication module 160 through a UART interface to implement a bluetooth function. In some embodiments, the audio module 170 may transmit an audio signal to the wireless communication module 160 through a UART interface, to implement a function of playing music through a bluetooth headset.

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

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal or as a data signal. In some embodiments, a GPIO interface may be used to connect the processor 110 with the camera 193, the display 194, the wireless communication module 160, the audio module 170, the sensor module 180, and the like. The GPIO interface may also be configured as an I2C interface, an I2S interface, a UART interface, an MIPI interface, etc.

The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the terminal device 100, or may be used to transfer data between the terminal device 100 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset. The interface may also be used to connect other terminal devices, such as AR devices, etc.

It should be understood that the interfacing relationship between the modules illustrated in the embodiment of the present application is only illustrative, and does not constitute a structural limitation of the terminal device 100. In other embodiments of the present application, the terminal device 100 may also use different interfacing manners, or a combination of multiple interfacing manners in the foregoing embodiments.

The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 140 may receive a charging input of a wired charger through the USB interface 130. In some wireless charging embodiments, the charge management module 140 may receive wireless charging input through a wireless charging coil of the terminal device 100. The charging management module 140 may also supply power to the terminal device through the power management module 141 while charging the battery 142.

The power management module 141 is used for connecting the battery 142, and the charge management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 to power the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be configured to monitor battery capacity, battery cycle number, battery health (leakage, impedance) and other parameters. In other embodiments, the power management module 141 may also be provided in the processor 110. In other embodiments, the power management module 141 and the charge management module 140 may be disposed in the same device.

The wireless communication function of the terminal device 100 can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the terminal device 100 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the terminal device 100. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 150 may receive electromagnetic waves from the antenna 1, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 1 to radiate. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs sound signals through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional module, independent of the processor 110.

The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc., applied to the terminal device 100. The wireless communication module 160 may be one or more devices that integrate at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via the antenna 2.

In some embodiments, antenna 1 and mobile communication module 150 of terminal device 100 are coupled, and antenna 2 and wireless communication module 160 are coupled, such that terminal device 100 may communicate with a network and other devices via wireless communication techniques. The wireless communication techniques may include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).

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

The display screen 194 is used to display images, videos, and the like. The display 194 includes a display panel. The display panel may employ a liquid crystal display (liquid crystal display, LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED) or an active-matrix organic light-emitting diode (matrix organic light emitting diode), a flexible light-emitting diode (flex), a mini, a Micro led, a Micro-OLED, a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED), or the like. In some embodiments, the terminal device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The terminal device 100 may implement a photographing function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like.

The ISP is used to process data fed back by the camera 193. For example, when photographing, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and is converted into an image visible to naked eyes. ISP can also perform algorithm optimization on noise and brightness of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in the camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV, or the like format. In some embodiments, the terminal device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the terminal device 100 selects a frequency bin, the digital signal processor is used to fourier transform the frequency bin energy, or the like.

Video codecs are used to compress or decompress digital video. The terminal device 100 may support one or more video codecs. In this way, the terminal device 100 can play or record video in various encoding formats, for example: dynamic picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

The NPU is a neural-network (NN) computing processor, and can rapidly process input information by referencing a biological neural network structure, for example, referencing a transmission mode between human brain neurons, and can also continuously perform self-learning. Applications such as intelligent awareness of the terminal device 100 may be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, etc.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to realize expansion of the memory capability of the terminal device 100. The external memory card communicates with the processor 110 through an external memory interface 120 to implement data storage functions. For example, files such as music, video, etc. are stored in an external memory card.

The internal memory 121 may be used to store computer executable program code including instructions. The internal memory 121 may include a storage program area and a storage data area. The storage program area may store an application program (such as a sound playing function, an image playing function, etc.) required for at least one function of the operating system, etc. The storage data area may store data (such as audio data, phonebook, etc.) created during use of the terminal device 100, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (universal flash storage, UFS), and the like. The processor 110 performs various functional applications of the terminal device 100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The terminal device 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or a portion of the functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also referred to as a "horn," is used to convert audio electrical signals into sound signals. The terminal device 100 can listen to music or to handsfree talk through the speaker 170A. A plurality of speakers 170A may be provided in the terminal device 100, for example, one speaker 170A may be provided at the top of the terminal device 100, one speaker 170A may be provided at the bottom, or the like.

A receiver 170B, also referred to as a "earpiece", is used to convert the audio electrical signal into a sound signal. When the terminal device 100 receives a call or voice message, it is possible to receive voice by approaching the receiver 170B to the human ear. In some embodiments, speaker 170A and receiver 170B may also be provided as one component, as the application is not limited in this regard.

Microphone 170C, also referred to as a "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can sound near the microphone 170C through the mouth, inputting a sound signal to the microphone 170C. The terminal device 100 may be provided with at least one microphone 170C. In other embodiments, the terminal device 100 may be provided with two microphones 170C, and may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the terminal device 100 may be further provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify the source of sound, implement directional recording functions, etc.

The earphone interface 170D is used to connect a wired earphone. The earphone interface 170D may be a USB interface 130 or a 3.5mm open mobile terminal platform (open mobile terminal platform, OMTP) standard interface, a american cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The pressure sensor 180A is used to sense a pressure signal, and may convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194. The pressure sensor 180A is of various types, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a capacitive pressure sensor comprising at least two parallel plates with conductive material. The capacitance between the electrodes changes when a force is applied to the pressure sensor 180A. The terminal device 100 determines the intensity of the pressure according to the change of the capacitance. When a touch operation is applied to the display 194, the terminal device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The terminal device 100 may also calculate the position of the touch from the detection signal of the pressure sensor 180A. In some embodiments, touch operations that act on the same touch location, but at different touch operation strengths, may correspond to different operation instructions. For example: and executing an instruction for checking the short message when the touch operation with the touch operation intensity smaller than the first pressure threshold acts on the short message application icon. And executing an instruction for newly creating the short message when the touch operation with the touch operation intensity being greater than or equal to the first pressure threshold acts on the short message application icon.

The gyro sensor 180B may be used to determine a motion gesture of the terminal device 100. In some embodiments, the angular velocity of the terminal device 100 about three axes (i.e., x, y, and z axes) may be determined by the gyro sensor 180B. The gyro sensor 180B may be used for photographing anti-shake. Illustratively, when the shutter is pressed, the gyro sensor 180B detects the angle of the shake of the terminal device 100, calculates the distance to be compensated by the lens module according to the angle, and allows the lens to counteract the shake of the terminal device 100 by the reverse motion, thereby realizing anti-shake. The gyro sensor 180B may also be used for navigating, somatosensory game scenes.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, the terminal device 100 calculates altitude from barometric pressure values measured by the barometric pressure sensor 180C, aiding in positioning and navigation.

The magnetic sensor 180D includes a hall sensor. The terminal device 100 can detect the opening and closing of the flip cover using the magnetic sensor 180D. In some embodiments, when the terminal device 100 is a folder, the terminal device 100 may detect opening and closing of the folder according to the magnetic sensor 180D. And then according to the detected opening and closing state of the leather sheath or the opening and closing state of the flip, the characteristics of automatic unlocking of the flip and the like are set.

The acceleration sensor 180E can detect the magnitude of acceleration of the terminal device 100 in various directions (typically three axes). The magnitude and direction of gravity may be detected when the terminal device 100 is stationary. The method can also be used for identifying the gesture of the terminal equipment, and is applied to the applications such as horizontal and vertical screen switching, pedometers and the like.

A distance sensor 180F for measuring a distance. The terminal device 100 may measure the distance by infrared or laser. In some embodiments, the terminal device 100 may range using the distance sensor 180F to achieve fast focusing.

The proximity light sensor 180G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The terminal device 100 emits infrared light outward through the light emitting diode. The terminal device 100 detects infrared reflected light from a nearby object using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object in the vicinity of the terminal device 100. When insufficient reflected light is detected, the terminal device 100 may determine that there is no object in the vicinity of the terminal device 100. The terminal device 100 can detect that the user holds the terminal device 100 close to the ear to talk by using the proximity light sensor 180G, so as to automatically extinguish the screen for the purpose of saving power. The proximity light sensor 180G may also be used in holster mode, pocket mode to automatically unlock and lock the screen.

The ambient light sensor 180L is used to sense ambient light level. The terminal device 100 may adaptively adjust the brightness of the display 194 based on the perceived ambient light level. The ambient light sensor 180L may also be used to automatically adjust white balance when taking a photograph. The ambient light sensor 180L may also cooperate with the proximity light sensor 180G to detect whether the terminal device 100 is in a pocket to prevent false touches.

The fingerprint sensor 180H is used to collect a fingerprint. The terminal device 100 can utilize the collected fingerprint characteristics to realize fingerprint unlocking, access an application lock, fingerprint photographing, fingerprint incoming call answering and the like.

The temperature sensor 180J is for detecting temperature. In some embodiments, the terminal device 100 performs a temperature processing strategy using the temperature detected by the temperature sensor 180J. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the terminal device 100 performs a reduction in the performance of a processor located near the temperature sensor 180J in order to reduce power consumption to implement thermal protection. In other embodiments, when the temperature is below another threshold, the terminal device 100 heats the battery 142 to avoid the low temperature causing the terminal device 100 to shut down abnormally. In other embodiments, when the temperature is below a further threshold, the terminal device 100 performs boosting of the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperatures.

The touch sensor 180K, also referred to as a "touch device". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is for detecting a touch operation acting thereon or thereabout. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output related to touch operations may be provided through the display 194. In other embodiments, the touch sensor 180K may also be disposed on the surface of the terminal device 100 at a different location than the display 194.

The bone conduction sensor 180M may acquire a vibration signal. In some embodiments, bone conduction sensor 180M may acquire a vibration signal of a human vocal tract vibrating bone pieces. The bone conduction sensor 180M may also contact the pulse of the human body to receive the blood pressure pulsation signal. In some embodiments, bone conduction sensor 180M may also be provided in a headset, in combination with an osteoinductive headset. The audio module 170 may analyze the voice signal based on the vibration signal of the sound portion vibration bone block obtained by the bone conduction sensor 180M, so as to implement a voice function. The application processor may analyze the heart rate information based on the blood pressure beat signal acquired by the bone conduction sensor 180M, so as to implement a heart rate detection function.

The keys 190 include a power-on key, a volume key, etc. The keys 190 may be mechanical keys. Or may be a touch key. The terminal device 100 may receive key inputs, generating key signal inputs related to user settings and function controls of the terminal device 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration alerting as well as for touch vibration feedback. For example, touch operations acting on different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 191 may also correspond to different vibration feedback effects by touching different areas of the display screen 194. Different application scenarios (such as time reminding, receiving information, alarm clock, game, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

The indicator 192 may be an indicator light, may be used to indicate a state of charge, a change in charge, a message indicating a missed call, a notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card may be contacted and separated from the terminal apparatus 100 by being inserted into the SIM card interface 195 or by being withdrawn from the SIM card interface 195. The terminal device 100 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 195 may support Nano SIM cards, micro SIM cards, and the like. The same SIM card interface 195 may be used to insert multiple cards simultaneously. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The terminal device 100 interacts with the network through the SIM card to realize functions such as call and data communication. In some embodiments, the terminal device 100 employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the terminal device 100 and cannot be separated from the terminal device 100.

The software system of the terminal device 100 may employ a layered architecture, an event driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture. In the embodiment of the application, taking an Android system with a layered architecture as an example, a software structure of the terminal device 100 is illustrated.

Fig. 3 is a software configuration block diagram of the terminal device 100 of the embodiment of the present application.

The layered architecture divides the software into several layers, each with distinct roles and branches. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, an application layer, an application framework layer, an Zhuoyun row (Android run) and system libraries, and a kernel layer, respectively.

The application layer may include a series of application packages.

As shown in fig. 3, the application package may include applications for cameras, gallery, calendar, phone calls, maps, navigation, WLAN, bluetooth, music, video, short messages, etc.

The application framework layer provides an application programming interface (application programming interface, API) and programming framework for application programs of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 3, the application framework layer may include a window manager, a content provider, a view system, a telephony manager, a resource manager, a notification manager, and the like.

The window manager is used for managing window programs. The window manager can acquire the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make such data accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phonebooks, etc.

The view system includes visual controls, such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, a display interface including a text message notification icon may include a view displaying text and a view displaying a picture.

The telephony manager is used to provide the communication functions of the terminal device 100. Such as the management of call status (including on, hung-up, etc.).

The resource manager provides various resources for the application program, such as localization strings, icons, pictures, layout files, video files, and the like.

The notification manager allows the application to display notification information in a status bar, can be used to communicate notification type messages, can automatically disappear after a short dwell, and does not require user interaction. Such as notification manager is used to inform that the download is complete, message alerts, etc. The notification manager may also be a notification in the form of a chart or scroll bar text that appears on the system top status bar, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, a text message is prompted in a status bar, a prompt tone is emitted, the terminal equipment vibrates, and an indicator light blinks.

Android run time includes a core library and virtual machines. Android run time is responsible for scheduling and management of the Android system.

The core library consists of two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. The virtual machine executes java files of the application program layer and the application program framework layer as binary files. The virtual machine is used for executing the functions of object life cycle management, stack management, thread management, security and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface manager (surface manager), media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., openGL ES), 2D graphics engines (e.g., SGL), etc.

The surface manager is used to manage the display subsystem and provides a fusion of 2D and 3D layers for multiple applications.

Media libraries support a variety of commonly used audio, video format playback and recording, still image files, and the like. The media library may support a variety of audio and video encoding formats, such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, etc.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

Next, an embodiment of the two-card communication method provided by the present application will be described.

Fig. 4 is a flowchart of a dual-card communication method according to an embodiment of the present application. As shown in fig. 4, the method may include the steps of:

s301, in an initial network residence stage, determining an optimal DSDA frequency band group in a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment and the network signal strength of the current position M of the terminal equipment.

Firstly, it should be noted that, in the embodiment of the present application, the terminal device refers to a terminal device supporting DSDA. Correspondingly, the terminal device can comprise a first communication card and a second communication card. For example, the first communication card is a main card and can be used for executing data services, such as browsing pages on the internet, watching live video, and the like. The second communication card is a sub-card and can be used for executing call services, such as answering and dialing.

The two-card communication method provided by the embodiment of the application is exemplified by taking the first communication card as a main card and the second communication card as a sub card.

And under the condition that the terminal equipment is just started or the flight mode is just ended, the terminal equipment enters an initial network residence stage. In the initial network residence stage, an optimal DSDA frequency band combination may be determined in multiple DSDA frequency band combinations according to the radio frequency capability of the terminal device and the network signal strength of the current location M (which may also be referred to as a second location in the embodiment of the present application) of the terminal device (the optimal DSDA frequency band combination determined in the initial network residence stage may be referred to as a second DSDA frequency band combination in the embodiment of the present application).

In general, for a terminal device supporting DSDA, the DSDA band combination supported by it is fixed. Thus, embodiments of the present application may determine the optimal DSDA band combination for use at location M among these DSDA band combinations.

Under different DSDA frequency band combinations, the radio frequency capability of the terminal equipment is different. While different radio frequency capabilities have a certain influence on the communication quality of the first communication card. Therefore, when the optimal DSDA frequency band combination is determined, the radio frequency capability of the terminal equipment and the network signal strength of the current position of the terminal equipment are comprehensively considered.

Fig. 5 is a flowchart of a method for determining an optimal DSDA frequency band combination in an initial network residence stage according to an embodiment of the present application. As shown in fig. 5, the method may include the steps of:

s3011, determining a radio frequency capability score of each DSDA frequency band combination in the plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment.

The radio frequency capability of the terminal device in the embodiment of the present application may include one or more radio frequency capabilities of the terminal device that affect the communication quality of the first communication card. By way of example, the radio frequency capabilities of the terminal device may include any one or more of the following: transmitting antenna coupling mode of the first communication card and the second communication card in DSDA state, transmitting channel switching capability of the first communication card, receiving channel number of the first communication card in DR-DSDS state, and receiving channel number rollback parameter of the first communication card.

Table 1 exemplarily shows the radio frequency capabilities of the terminal device, and the radio frequency capabilities of the terminal device are described below in connection with table 1.

Table 1 radio frequency capabilities of terminal devices

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Referring to table 1, the back-off parameter of the number of receiving channels of the first communication card refers to a change of the number of receiving channels of the first communication card when the terminal device is switched from the DR-DSDS state to the DSDA state. For example, the number of receive channels back-off parameters of the first communication card may include no back-off (no-degrade), 4rx→2rx, and 2rx→1rx. Wherein, the absence of the backoff indicates that the number of the receiving channels of the first communication card may not be changed when the terminal device is switched from the DR-DSDS state to the DSDA state. The term "4 RX- > 2 RX" refers to that the number of the receiving channels of the first communication card is 4 when the terminal device is in the DR-DSDS state, and the transmitting channel switching capability of the first communication card is changed to 2 after the terminal device is switched to the DSDA state. The term "2 rx→1rx" refers to that the number of the receiving channels of the first communication card is 2 when the terminal device is in the DR-DSDS state, and the transmitting channel switching capability of the first communication card is changed to 1 after the terminal device is switched to the DSDA state. And under the condition that the number of the receiving channels of the first communication card is not retracted, the performance retraction influence on the data service of the main card is minimum.

The coupling modes of the transmitting antennas of the first communication card and the second communication card in the DSDA state may include two types, one type is a transmitting antenna sharing (tx_fc) and the other type is a transmitting antenna sharing (tx_sharing). If two frequency bands in the DSDA frequency band combination respectively have independent transmitting channels, the transmitting channels of the two frequency bands in the DSDA frequency band combination can respectively work independently, and the embodiment of the application refers to the situation as single-shared transmitting antennas. If two frequency bands in the DSDA frequency band combination do not have independent transmission channels, the two frequency bands in the DSDA frequency band combination need to compete to use the same transmission channel in a time division multiplexing mode, and the embodiment of the application refers to the situation as transmission antenna sharing. Therefore, under the same network signal strength, compared with a coupling mode shared by the transmitting antennas, the coupling mode shared by the transmitting antennas can enable the performance of the data service of the main card to be more to be retracted, and the data transmission quality of the main card is affected.

The transmitting channel switching capability of the first communication card refers to that when the terminal equipment is switched from a DR-DSDS state to a DSDA state, one path of radio frequency channel is selected from one or more radio frequency channels as a transmitting channel, and uplink data is transmitted. It can be seen that the transmit channel switching capability of the first communication card affects the upstream data transmission capability. The transmit channel switching capability may include 1T4R, 1T2R, noAsdiv (also referred to as 1T 1R), and the like. 1T4R indicates that the first communication card may have 4 receiving channels in a certain frequency band, and each receiving channel has transmitting and receiving capabilities, so that a channel with the best received signal may be selected from the 4 receiving channels as a transmitting channel, thereby improving uplink coverage capability. Similarly, 1T2R indicates that the best one of the 2 reception channels to receive a signal can be selected as the transmission channel. NoAsdiv indicates that the first communication card has no transmission channel switching capability, that is, the first communication card has only 1 reception channel in a certain frequency band, so that only the reception channel can be used as a transmission channel.

In the process that the terminal equipment is switched from the DR-DSDS state to the DSDA state, different changes of the transmitting channel switching capacity of the first communication card have different influences on data service transmission of the first communication card. By way of example, the change in the transmission channel switching capability of the first communication card may include 1t4r→1t2r, 1t2r→noasdiv, 1t4r→1t4r, 1t2r→1t2r, and 1t4r→noasdiv. Wherein, 1T 4R- & gt1T 2R represents that the transmitting channel switching capability of the first communication card is 1T4R when the terminal equipment is in a DR-DSDS state, and the transmitting channel switching capability of the first communication card is changed into 1T2R after the terminal equipment is switched to a DSDA state. 1T 2R- & gtNoAsdiv indicates that the transmitting channel switching capability of the first communication card is 1T2R when the terminal equipment is in a DR-DSDS state, and after the terminal equipment is switched to a DSDA state, the transmitting channel switching capability of the first communication card is changed to NoAsdiv.1T 4R- & gt1T 4R means that the transmitting channel switching capability of the first communication card is 1T4R when the terminal equipment is in a DR-DSDS state, and the transmitting channel switching capability of the first communication card is still 1T4R after the terminal equipment is switched to the DSDA state. 1T 2R- & gt1T 2R means that the transmitting channel switching capability of the first communication card is 1T2R when the terminal equipment is in a DR-DSDS state, and the transmitting channel switching capability of the first communication card is still 1T2R after the terminal equipment is switched to the DSDA state. 1T 4R- & gtNoAsdiv indicates that the transmitting channel switching capability of the first communication card is 1T4R when the terminal equipment is in a DR-DSDS state, and the transmitting channel switching capability of the first communication card is NoAsdiv after the terminal equipment is switched to a DSDA state.

When the change of the transmitting channel switching capability of the first communication card is 1T 4R-1T 4R, the influence on the performance rollback of the data service of the main card is minimum.

The number of receiving channels of the first communication card in the DR-DSDS state may affect the downlink data transmission capability of the first communication card. The number of reception channels of the first communication card in the DR-DSDS state may include 4RX, 2RX, 1RX, etc. Wherein 4RX, 2RX and 1RX respectively represent the number of the receiving channels of the first communication card in the DR-DSDS state as 4, 2 and 1. The more the number of the receiving channels of the first communication card in the DR-DSDS state is, the better the downlink data transmission capability is.

As can be seen from table 1, each radio frequency capability may include multiple entries, which may satisfy one entry for each radio frequency capability for one DSDA band combination. Thus, for different DSDA band combinations, the corresponding entries in each radio frequency capability may be different.

For example, as shown in table 2, for the DSDA frequency band combination n1+n5, the back-off parameter of the number of receiving channels of the first communication card is no degradation, the coupling mode of the transmitting antennas of the dual card in the DSDA state is tx_sharing, the change of the transmitting channel switching capability of the first communication card is 1t2r→1t2r, and the number of receiving channels of the first communication card in the dr-DSDS state is 4RX. For another example, for the DSDA frequency band combination n41+n41, the back-off parameter of the number of receiving channels of the first communication card is 4rx→2rx, the coupling mode of the transmitting antennas of the dual card in the DSDA state is tx_sharing, the change of the transmitting channel switching capability of the first communication card is 1t4r→1t2r, and the number of receiving channels of the first communication card in the dr-DSDS state is 2RX. Not listed here, refer specifically to table 2.

Wherein, the frequency band corresponding to n1 is 1920-1965 megahertz (MHz), the frequency band corresponding to n5 is 825-835MHz, the frequency band corresponding to n41 is 2515-2675MHz, the frequency band corresponding to n78 is 3400-3600MHz, and the frequency band corresponding to n28 is 703-798MHz.

Table 2 radio frequency capabilities of terminal devices corresponding to different DSDA band combinations

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The embodiment of the application can assign different scores based on the influence of each sub-item in the radio frequency capability on the communication quality of the first communication card. Wherein the smaller the impact on the data transmission quality of the first communication card, the higher its score. For example, referring to table 1, for the radio frequency capability of the first communication card, A1 > A2 > A3, which is the number of receive channels back off parameter. For the dual-card transmit antenna coupling in DSDA, B1 > B2. For a change in transmit channel switching capability of the first communication card, C3 > C4 > C1 > C5 > C2. For the number of receive channels of the first communication card in DR-DSDS state, D1 > D2 > D3.

In this way, the embodiment of the application can determine the radio frequency capability score of each DSDA frequency band combination based on the score corresponding to each sub-item in each radio frequency capability.

Taking DSDA frequency band combinations n1+n5, n41+n78, n41+n41, and n28+n28 as an example, it can be seen from table 1 and table 2 that the radio frequency capability score Cap1 corresponding to DSDA frequency band combination n1+n5 is a1+b2+c4+d1, the radio frequency capability score Cap2 corresponding to DSDA frequency band combination n41+n78 is a1+b2+c3+d1, the radio frequency capability score Cap3 corresponding to DSDA frequency band combination n41+n41 is a2+b2+c1+d2, and the radio frequency capability score Cap4 corresponding to DSDA frequency band combination n28+n28 is a3+b2+c2+d3.

It should be noted that the foregoing embodiments are only exemplary for describing the radio frequency capabilities of the terminal device shown in table 1, and do not represent limitation of each radio frequency capability of the terminal device, and may include more or fewer radio frequency capability items for different terminal devices.

It should be further noted that the DSDA frequency band combinations supported by different terminal devices may be different, and the radio frequency capabilities corresponding to each DSDA frequency band combination in different terminal devices may also be different. The above embodiments are only exemplified by the DSDA frequency band combinations supported in a certain terminal device, and the radio frequency capabilities corresponding to each DSDA frequency band combination.

In one implementation manner, each terminal device may store a rule table corresponding to each terminal device, where the rule table may include each DSDA frequency band combination supported by the terminal device, each radio frequency capability corresponding to each DSDA frequency band combination, and a sub-term corresponding to each radio frequency capability. For example, the rule table may be a rule table similar to that shown in table 2 above.

In this way, before determining the radio frequency capability score of each DSDA frequency band combination in the plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal device, the rule table corresponding to the current terminal device may be obtained. Then, based on the rule table and the corresponding relation between each radio frequency capability and the radio frequency capability score in table 1, the radio frequency capability score of each DSDA frequency band combination in the plurality of DSDA frequency band combinations is determined.

S3012, determining the signal intensity score of each DSDA frequency band combination based on the network signal intensity of the current position M of the terminal equipment.

With continued reference to table 1, the network signal strength of the current location M of the terminal device includes the network signal strength of the first communication card and the network signal strength of the second communication card. The network signal strength may be characterized by reference signal received power (reference signal receiving power, RSRP), for example.

The embodiment of the application can grade the network signal strength. For example, as shown in Table 1, the network signal strengths may be divided into seven classes, with the seven network signal strength classes from strong to weak being RSRP > 50 dBm, -50 dBm > RSRP > 60 dBm, -80 dBm > RSRP > 70 dBm, -90 dBm > RSRP > 80 dBm, -100 dBm > RSRP > 90 dBm, -110 dBm > RSRP > 100 dBm, RSRP < 110 dBm, respectively.

In this way, according to the network signal strength of the current position M of the terminal device, the network signal strength levels corresponding to the two frequency bands in each DSDA frequency band combination can be respectively determined.

Similarly, the embodiment of the application can assign corresponding scores to different network signal strength grades based on the magnitude of the network signal strength. For example, referring to Table 1, for a first communications card network signal strength, E1 > E2 > E3 > E4 > E5 > E6 > E7. For the second communications card network signal strength, F1 > F2 > F3 > F4 > F5 > F6 > F7.

In this way, based on the network environment of the current position M of the terminal device, the network signal strength corresponding to each frequency band can be determined. Further, the signal strength scores corresponding to the two frequency bands in each DSDA frequency band combination may be determined based on the network signal strengths corresponding to the frequency bands and the correspondence between the network signal strengths and the scores in table 1.

Illustratively, as shown in Table 3, at position M, the first communication card signal strength score in DSDA band combination n1+n5 is E1 and the second communication card signal strength score is F3. The signal intensity score of the first communication card in the DSDA frequency band combination n41+n78 is E5, and the signal intensity score of the second communication card is F2. The signal intensity score of the first communication card in the DSDA frequency band combination n41+n41 is E5, and the signal intensity score of the second communication card is F5. The signal intensity score of the first communication card in the DSDA frequency band combination n28+n28 is E6, and the signal intensity score of the second communication card is F6.

Table 3 RF capability score and Signal Strength score for each DSDA band combination at position M

；

The signal strength score of the DSDA frequency band combination may be a sum of a signal strength score of the first communication card and a signal strength score of the second communication card, or the signal strength score of the DSDA frequency band combination may be a weighted sum of a signal strength score of the first communication card and a signal strength score of the second communication card.

For example, the signal strength score Env1 corresponding to the DSDA frequency band combination n1+n5 may be e1+f3, the signal strength score Env2 corresponding to the DSDA frequency band combination n41+n78 may be e5+f2, the signal strength score Env3 corresponding to the DSDA frequency band combination n41+n41 may be e5+f5, and the signal strength score Env4 corresponding to the DSDA frequency band combination n28+n28 may be e6+f6.

S3013, determining an optimal DSDA frequency band combination from a plurality of DSDA frequency band combinations based on the radio frequency capability score and the signal strength score of each DSDA frequency band combination.

In some embodiments, determining an optimal DSDA band combination among a plurality of DSDA band combinations may be accomplished in the following manner: the comprehensive score of each DSDA frequency band combination is determined based on the radio frequency capability score and the signal strength score of each DSDA frequency band combination. Then, the frequency band combination with the highest comprehensive score in the plurality of DSDA frequency band combinations is determined as the optimal DSDA frequency band combination.

For example, as shown in table 3, different weighting coefficients may be set for the radio frequency capability score and the signal strength score according to the embodiments of the present application. For example, the radio frequency capability score corresponds to a weight coefficient of a and the signal strength score corresponds to a weight coefficient of b. Thus, the composite score rank1=a.cap1+b.env1 for DSDA frequency band combination n1+n5, the composite score rank2=a.cap2+b.env2 for DSDA frequency band combination n41+n78, the composite score rank3=a.cap3+b.env3 for DSDA frequency band combination n41+n41, and the composite score rank4=a.cap4+b.env4 for DSDA frequency band combination n28+n28.

Suppose the Rank of the composite score Rank from high to low is: rank1 > Rank2 > Rank3 > Rank4, in which case the DSDA frequency band combination n1+n5 corresponding to Rank1 with the highest composite score Rank may be determined as the optimal DSDA frequency band combination at the current position.

In this way, the optimal DSDA frequency band combination determined by the embodiment of the present application considers the radio frequency capability of the terminal device itself and the network signal strength of the current location of the terminal device, so that the determined optimal DSDA frequency band combination can maximally prevent the data transmission quality of the first communication card from being affected by the second communication card, thereby improving the user experience.

S3014, based on the optimal DSDA frequency band combination determined in the step S3013, performing initial network residence operation on the terminal equipment.

It should be understood that the optimal DSDA frequency band combination determined in step S3013 includes two frequency bands, a frequency band corresponding to the first communication card (which may be referred to as a third frequency band in the embodiment of the present application) and a frequency band corresponding to the second communication card (which may be referred to as a fourth frequency band in the embodiment of the present application). For example, taking the optimal DSDA frequency band combination as n1+n5 as an example, the frequency band corresponding to the first communication card is n1 and the frequency band corresponding to the second communication card is n5.

Thus, performing the initial network residence operation on the terminal device refers to causing the first communication card of the terminal device to reside in the n1 frequency band and causing the second communication card of the terminal device to reside in the n5 frequency band.

After the initial network residence operation is completed, the first communication card in the terminal device can execute data service through the n1 frequency band, for example, video watching, live broadcasting and the like. The second communication card in the terminal device can execute the call service through the n5 frequency band.

In this way, in the initial network residence stage, the embodiment of the application determines the optimal DSDA frequency band combination in the plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment and the network signal strength of the position of the terminal equipment, and hosts the terminal equipment to the optimal DSDA frequency band combination, so that the user enjoys the optimal performance experience after the initial network residence.

S302, under the condition that the position of the terminal equipment is changed, responding to the terminal equipment to enter a DSDA state, and acquiring performance rollback parameters of data service of the terminal equipment.

Since the network signal strengths corresponding to the DSDA frequency band combinations may be different at different locations, if the terminal device moves from the location where the initial residence network is located to other locations (for example, the terminal device moves from location M to location N), and after the terminal device enters the DSDA state, the optimal DSDA frequency band combination determined at the location is still used, which may cause the data service performance of the first communication card to be severely degraded at the location N.

Therefore, under the condition that the position of the terminal equipment is changed, the embodiment of the application responds to the condition that the terminal equipment enters the DSDA state, and judges whether the performance of the data service of the terminal equipment is seriously retracted. If the backoff is severe, the optimal DSDA band combination at the applicable location N (which may also be referred to as the first location in the embodiment of the present application) is redetermined. If the backoff is not severe, the last determined optimal DSDA band combination may still be employed.

The embodiment of the application can determine whether the performance of the data service of the terminal equipment is seriously retracted or not by acquiring the performance retraction parameter of the data service of the terminal equipment and then based on the performance retraction parameter of the data service.

The performance rollback parameter in the embodiment of the application refers to a parameter capable of representing performance degradation of data service of terminal equipment.

In some embodiments, the performance backoff parameter may comprise a network transmission rate reduction magnitude and/or a bit error rate increase magnitude. For example, the network transmission rate reduction amplitude may include an uplink and/or downlink transmission rate reduction ratio, and the bit error rate increase amplitude may include an uplink and/or downlink bit error rate increase ratio.

S303, judging whether the performance rollback parameter meets the rollback condition.

In some embodiments, if the performance back-off parameter is a network transmission rate reduction magnitude, then determining that the performance back-off parameter satisfies a back-off condition if the network transmission rate reduction magnitude is above a network transmission rate back-off threshold. And under the condition that the network transmission rate reduction amplitude is lower than or equal to the network transmission rate back-off threshold, determining that the performance back-off parameter does not meet the back-off condition.

In some embodiments, if the performance backoff parameter is a bit error rate increase magnitude, then in the event that the bit error rate increase magnitude is above a bit error rate backoff threshold, the performance backoff parameter is determined to satisfy a backoff condition. And under the condition that the bit error rate increase amplitude is lower than or equal to the bit error rate back-off threshold value, determining that the performance back-off parameter does not meet the back-off condition.

In some embodiments, if the performance back-off parameter includes a network transmission rate reduction magnitude and a bit error rate increase magnitude, determining that the performance back-off parameter satisfies a back-off condition if the network transmission rate reduction magnitude is above a network transmission rate back-off threshold and/or the bit error rate increase magnitude is above a bit error rate back-off threshold. And under the condition that the network transmission rate reduction amplitude is lower than or equal to the network transmission rate back-off threshold and the bit error rate increase amplitude is lower than or equal to the bit error rate back-off threshold, determining that the performance back-off parameter does not meet the back-off condition.

In the case where the performance backoff parameter satisfies the backoff condition, the following steps S304 to S305 are performed. And ending the task when the performance rollback parameter meets the rollback condition, namely still keeping the optimal DSDA frequency band combination determined last time by the terminal equipment resident network at the current position.

S304, when the performance rollback parameter meets the rollback condition, the optimal DSDA frequency band combination is redetermined in a plurality of DSDA frequency band combinations (the redetermined optimal DSDA frequency band combination can be called as a first DSDA frequency band combination in the embodiment of the application) based on the radio frequency capability of the terminal equipment and the network signal strength of the current position N (the first position can also be called as the embodiment of the application) of the terminal equipment.

The method for redefining the optimal DSDA frequency band combination among the plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal device and the network signal strength of the current location N of the terminal device may be specifically described with reference to the method for determining the optimal DSDA frequency band combination in step S301. For example: the radio frequency capability score of each DSDA frequency band combination in the plurality of DSDA frequency band combinations can be determined based on the radio frequency capability of the terminal equipment; a signal strength score for each DSDA frequency band combination is determined based on the network signal strength at location N. Then, an optimal DSDA band combination is redetermined among the plurality of DSDA band combinations based on the radio frequency capability score and the signal strength score of each DSDA band combination.

In some embodiments, as shown in fig. 6, the redetermining of the optimal DSDA band combination among the plurality of DSDA band combinations may be implemented by:

s3041, determining the radio frequency capability score of each DSDA frequency band combination in the plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment.

S3042, determining a signal strength score for each DSDA frequency band combination based on the network signal strength at location N.

S3043, determining the comprehensive score of each DSDA frequency band combination based on the radio frequency capability score and the signal strength score of each DSDA frequency band combination.

S3044, determining the frequency band combination with the highest comprehensive score in the plurality of DSDA frequency band combinations as the optimal DSDA frequency band combination.

For example, referring to table 4, there is a significant change in the network signal strength for each DSDA band combination at location N. In table 4, the signal strength score Env1 corresponding to the DSDA frequency band combination n1+n5 may be e7+f6, the signal strength score Env2 corresponding to the DSDA frequency band combination n41+n78 may be e1+f5, the signal strength score Env3 corresponding to the DSDA frequency band combination n41+n41 may be e1+f1, and the signal strength score Env4 corresponding to the DSDA frequency band combination n28+n28 may be e6+f6.

Thus, there may be a change in the ranking of the recalculated composite score based on the network signal strength at location N. For example, the ranking of the recalculated composite score is Rank3 > Rank2 > Rank1 > Rank4. In this case, the DSDA frequency band combination n41+n41 corresponding to Rank3 having the highest composite score Rank may be redetermined as the optimal DSDA frequency band combination corresponding to the current position N.

Table 4 RF capability score and Signal Strength score for each DSDA band combination at position N

。

In some embodiments, as shown in fig. 7, determining the re-optimal DSDA frequency band combination from the plurality of DSDA frequency band combinations may be implemented by:

s3045, determining the radio frequency capability score of each DSDA frequency band combination in the plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment.

S3046, determining a signal strength score for each DSDA frequency band combination based on the network signal strength at location N.

S3047, determining the comprehensive score of each DSDA frequency band combination based on the radio frequency capability score and the signal strength score of each DSDA frequency band combination.

S3048, determining the frequency band of the second communication card currently residing in the network.

The frequency band where the second communication card currently resides on the network is the frequency band corresponding to the second communication card in the last determined optimal DSDA frequency band combination. For example, the last determined optimal DSDA frequency band combination is the optimal DSDA frequency band combination determined in the initial network residence stage.

S3049, based on the comprehensive score of the DSDA frequency band combination, determining the frequency band of the call service in the plurality of DSDA frequency band combinations as the frequency band of the current resident network of the second communication card and the frequency band combination with the highest comprehensive score as the first DSDA frequency band combination.

For example, please continue to refer to table 4, assuming that the frequency band where the second communication card currently resides is n78, a DSDA frequency band combination with the frequency band corresponding to the second communication card being n78 is determined from the plurality of DSDA frequency band combinations. In this way, the DSDA frequency band combination n41+n78 corresponding to the Rank2 with the highest comprehensive score Rank in the DSDA frequency band combination with the frequency band N78 corresponding to the second communication card can be redetermined as the optimal DSDA frequency band combination corresponding to the current position N based on the recalculated ranking Rank3 > Rank2 > Rank1 > Rank4 of the comprehensive score.

The optimal DSDA frequency band combination redetermined by the mode can ensure that the data service quality of the first communication card is not seriously influenced as much as possible on the premise that the conversation quality of the second communication card is not influenced, thereby improving the comprehensive experience of users.

S305, performing frequency band calibration operation on the first communication card and the second communication card based on the optimal DSDA frequency band combination re-determined in the step S304.

By performing a band calibration operation on the first communication card and the second communication card, the dual card residence of the terminal device can be made to a redetermined optimal DSDA band combination.

For example, taking the redetermined optimal DSDA frequency band combination as n41+n41 as an example, after the frequency band calibration operation is performed on the first communication card and the second communication card, the frequency band corresponding to the first communication card is n41, and the frequency band corresponding to the second communication card is n41. That is, after calibration, both the first communication card and the second communication card reside in the n41 frequency band.

The embodiment of the application does not limit the specific implementation mode of the frequency band calibration. For example, the first communication card and the second communication card may be respectively resided in two frequency bands in the optimal DSDA frequency band combination through network reselection, switching, chain breaking, and other manners.

The following is an exemplary description of frequency band calibration by way of broken links.

Fig. 8 is a flowchart of a method for calibrating a frequency band according to an embodiment of the present application. As shown in fig. 8, the following steps may be included:

and S3051, searching a first cell comprising the optimal DSDA frequency band combination.

After the terminal device determines the optimal frequency band combination, the first communication card and the second communication card can search corresponding frequency points and cells, namely, the first cell, based on the frequency bands corresponding to the first communication card and the second communication card.

S3052, it is determined whether the first cell can be searched.

In some embodiments, if the terminal device moves to location N without a large change in location, the first cell can generally be searched.

In some embodiments, if the terminal device continues to move after moving to the location N, and the moving speed of the terminal device is relatively high, the terminal device may be located at a location K further from the location N when searching for the first cell. Thus, the first cell may not be searched at location K. In this case, steps S302 to S304 may be re-performed once to re-determine the optimal DSDA band combination.

And S3053, under the condition that the first cell is searched, selecting the first cell, controlling the first communication card to reside in the first frequency band, and controlling the second communication card to reside in the second frequency band.

The first frequency band is a frequency band corresponding to the first communication card in the optimal DSDA frequency band combination determined in step S304, and the second frequency band is a frequency band corresponding to the second communication card in the optimal DSDA frequency band combination determined in step S304.

And S3054, determining a third DSDA frequency band combination based on the radio frequency capability of the terminal equipment and the network signal strength of a third position where the terminal equipment is located under the condition that the first cell is not searched.

The step of determining the third DSDA frequency band combination may be referred to the descriptions of step S301 to step S304 in the above embodiments, and will not be repeated here.

And S3055, searching a second cell comprising the third DSDA frequency band combination.

In this way, after the terminal device redetermines the optimal frequency band combination, the first communication card and the second communication card can redetect the corresponding frequency point and the cell, namely the second cell, based on the respective corresponding frequency bands.

S3056, it is determined whether the second cell can be searched.

And S3057, selecting a second cell under the condition that the second cell is searched, controlling the first communication card to reside in the fifth frequency band, and controlling the second communication card to reside in the sixth frequency band.

The fifth frequency band is the frequency band corresponding to the first communication card in the optimal DSDA frequency band combination (i.e., the third DSDA frequency band combination) determined in step S3054, and the sixth frequency band is the frequency band corresponding to the second communication card in the optimal DSDA frequency band combination (i.e., the third DSDA frequency band combination) determined in step S3054.

It should be noted that, the foregoing embodiment is only illustrated by moving the terminal device from the initial network location M to the location N, and does not represent a limitation of the dual-card communication method provided by the embodiment of the present application. For example, when the terminal device moves from the location N to another location, the method described in the above steps S302 to S305 may also be used to determine the optimal DSDA frequency band combination, and two frequency bands in the optimal DSDA frequency band combination are used for the dual-card residence network of the terminal device. In this way, the optimal DSDA frequency band combination determined by the scheme provided by the embodiment of the application can always ensure that the data service of the first communication card is not seriously affected by the second communication card, thereby improving the user experience.

The method embodiments described herein may be independent schemes or may be combined according to internal logic, and these schemes fall within the protection scope of the present application.

It will be appreciated that in the various method embodiments described above, the methods and operations performed by the terminal device may also be performed by components (e.g., chips or circuits) that may be used in the terminal device.

The above embodiment describes the dual-card communication method provided by the application. It will be appreciated that the terminal device, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules that perform each of the functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Fig. 9 is a schematic structural diagram of a dual-card communication device according to an embodiment of the present application. In one embodiment, the terminal device may implement the corresponding functions by means of the software means shown in fig. 9. As shown in fig. 9, the dual-card communication apparatus 400 may include: an acquisition module 401, a DSDA frequency band combination determination module 402 and a frequency band calibration module 403.

An obtaining module 401, configured to obtain a performance backoff parameter of a data service of a terminal device in response to the terminal device entering a DSDA state;

a DSDA frequency band combination determining module 402, configured to determine, in a plurality of DSDA frequency band combinations, a first DSDA frequency band combination based on radio frequency capability of the terminal device and network signal strength of a first location where the terminal device is located, where the performance back-off parameter meets a back-off condition; the first DSDA frequency band combination comprises a first frequency band corresponding to a first communication card in the terminal equipment and a second frequency band corresponding to a second communication card in the terminal equipment;

a frequency band calibration module 403, configured to perform a frequency band calibration operation on the first communication card and the second communication card based on the first DSDA frequency band combination; the frequency band corresponding to the calibrated first communication card is the first frequency band, and the frequency band corresponding to the calibrated second communication card is the second frequency band.

In one implementation manner, the DSDA frequency band combination determining module 402 is specifically configured to determine, based on the radio frequency capabilities of the terminal device, a radio frequency capability score of each of the DSDA frequency band combinations in the plurality of DSDA frequency band combinations; determining a signal strength score for each DSDA frequency band combination based on the network signal strength of the first location; the first DSDA band combination is determined from the plurality of DSDA band combinations based on the radio frequency capability scores and the signal strength scores for each of the DSDA band combinations.

In one implementation, the DSDA frequency band combination determining module 402 is specifically configured to determine a composite score of each of the DSDA frequency band combinations based on the radio frequency capability score and the signal strength score of each of the DSDA frequency band combinations; the first DSDA band combination is determined from the plurality of DSDA band combinations based on the composite score of the DSDA band combination.

In one implementation manner, the DSDA frequency band combination determining module 402 is specifically configured to determine, as the first DSDA frequency band combination, a frequency band combination with the highest comprehensive score among the plurality of DSDA frequency band combinations based on the comprehensive score of the DSDA frequency band combination.

In one implementation manner, the DSDA frequency band combination determining module 402 is specifically configured to determine a frequency band where the second communication card currently resides; and determining the frequency band of the call service in the plurality of DSDA frequency band combinations as the frequency band of the second communication card currently residing in the network and the frequency band combination with the highest comprehensive score as the first DSDA frequency band combination based on the comprehensive score of the DSDA frequency band combination.

In one implementation manner, the DSDA frequency band combination determining module 402 is further configured to determine, in the case where the terminal device is initially in a network, a second DSDA frequency band combination from the plurality of DSDA frequency band combinations according to the radio frequency capability of the terminal device and a network signal strength of a second location where the terminal device is located; wherein the second position is a different position than the first position; the second DSDA frequency band combination comprises a third frequency band corresponding to the first communication card and a fourth frequency band corresponding to the second communication card. The frequency band calibration module 403 is further configured to perform an initial network residence operation on the terminal device based on the second DSDA frequency band combination, where a frequency band corresponding to the first communication card after initial network residence is the third frequency band, and a frequency band corresponding to the second communication card after initial network residence is the fourth frequency band.

In one implementation manner, the obtaining module 401 is specifically configured to obtain, in response to the terminal device entering a DSDA state, a performance backoff parameter of a data service of the terminal device when a location of the terminal device changes.

In one implementation manner, the DSDA frequency band combination determining module 402 is specifically configured to determine, in a case where the network transmission rate decrease amplitude is higher than the network transmission rate back-off threshold and/or the bit error rate increase amplitude is higher than the bit error rate back-off threshold, a first DSDA frequency band combination from a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal device and the network signal strength of the first location where the terminal device is located.

In one implementation, the band calibration module 403 is specifically configured to search for a first cell including the first DSDA band combination; and under the condition that the first cell is searched, selecting the first cell, controlling the first communication card to reside in the first frequency band, and controlling the second communication card to reside in the second frequency band.

In one implementation manner, the frequency band calibration module 403 is specifically configured to determine, when the first cell is not searched, a third DSDA frequency band combination based on the radio frequency capability of the terminal device and the network signal strength of a third location where the terminal device is located; the third DSDA frequency band combination comprises a fifth frequency band corresponding to the first communication card and a sixth frequency band corresponding to the second communication card; searching a second cell comprising the third DSDA frequency band combination; and under the condition that the second cell is searched, selecting the second cell, controlling the first communication card to reside in the fifth frequency band, and controlling the second communication card to reside in the sixth frequency band.

That is, the apparatus 400 may implement steps or processes performed corresponding to the method embodiments shown in fig. 1 to 8, and the apparatus 400 may include modules for performing the methods performed in the method embodiments shown in fig. 1 to 8. It should be understood that the specific process of each module to perform the corresponding steps is described in detail in the above method embodiments, and is not described herein for brevity.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the application, the embodiment of the application also provides a computer program product, which comprises: computer program or instructions which, when run on a computer, cause the computer to perform the method of any of the method embodiments.

According to the method provided by the embodiment of the application, the embodiment of the application also provides a computer storage medium, and the computer storage medium stores a computer program or instructions, which when run on a computer, cause the computer to execute the method of any one of the method embodiments.

According to the method provided by the embodiment of the application, the embodiment of the application also provides terminal equipment, which comprises a memory and a processor; the memory is coupled to the processor; the memory is used for storing computer program code comprising computer instructions which, when executed by the processor, cause the terminal device to perform the method of any of the method embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks (illustrative logical block) and steps (steps) described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus and modules described above may refer to the corresponding process in the foregoing method embodiment, which is not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over 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.

In addition, each functional module in the embodiments of the present application may be integrated in one processing unit, or each module may exist alone physically, or two or more modules may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The apparatus, the computer storage medium, the computer program product, and the terminal device provided in the embodiments of the present application are used to execute the method provided above, so that the beneficial effects achieved by the apparatus, the computer storage medium, the computer program product, and the terminal device can refer to the beneficial effects corresponding to the method provided above, and are not described herein again.

It should be understood that, in the embodiments of the present application, the execution sequence of each step should be determined by the function and the internal logic, and the size of the sequence number of each step does not mean that the execution sequence is sequential, and does not limit the implementation process of the embodiments.

All parts of the specification are described in a progressive manner, and all parts of the embodiments which are the same and similar to each other are referred to each other, and each embodiment is mainly described as being different from other embodiments. In particular, for embodiments of the apparatus, computer storage medium, computer program product, terminal device, the description is relatively simple, as it is substantially similar to the method embodiments, as relevant points are referred to in the description of the method embodiments.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

The embodiments of the present application described above do not limit the scope of the present application.

Claims

1. A dual card communication method, wherein the method is applied to a terminal device supporting dual card dual pass DSDA, the method comprising:

responding to the terminal equipment entering a DSDA state, and acquiring performance rollback parameters of data service of the terminal equipment;

under the condition that the performance rollback parameter meets rollback conditions, determining the radio frequency capability score of each DSDA frequency band combination in a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment;

determining a signal intensity score of each DSDA frequency band combination based on the network signal intensity of the first position where the terminal equipment is located;

determining a first DSDA band combination from the plurality of DSDA band combinations based on the radio frequency capability scores and the signal strength scores for each of the DSDA band combinations; the first DSDA frequency band combination comprises a first frequency band corresponding to a first communication card in the terminal equipment and a second frequency band corresponding to a second communication card in the terminal equipment;

performing a band calibration operation on the first communication card and the second communication card based on the first DSDA band combination; the frequency band corresponding to the calibrated first communication card is the first frequency band, and the frequency band corresponding to the calibrated second communication card is the second frequency band.

2. The method of claim 1, wherein the determining the first DSDA band combination among the plurality of DSDA band combinations based on the radio frequency capability scores and the signal strength scores for each of the DSDA band combinations comprises:

determining a composite score for each DSDA frequency band combination based on the radio frequency capability score and the signal strength score for each DSDA frequency band combination;

the first DSDA band combination is determined from the plurality of DSDA band combinations based on the composite score of the DSDA band combination.

3. The method of claim 2, wherein the determining the first DSDA band combination among the plurality of DSDA band combinations based on the composite score for the DSDA band combination comprises:

and determining a frequency band combination with the highest comprehensive score in the plurality of DSDA frequency band combinations as the first DSDA frequency band combination based on the comprehensive score of the DSDA frequency band combination.

4. The method of claim 2, wherein the first communication card is configured to perform data traffic and the second communication card is configured to perform telephony traffic, wherein the determining the first DSDA band combination among the plurality of DSDA band combinations based on the composite score of the DSDA band combination comprises:

Determining the frequency band of the second communication card currently residing in the network;

and determining the frequency band of the call service in the plurality of DSDA frequency band combinations as the frequency band of the second communication card currently residing in the network and the frequency band combination with the highest comprehensive score as the first DSDA frequency band combination based on the comprehensive score of the DSDA frequency band combination.

5. The method of claim 1, wherein before the obtaining the performance backoff parameter of the data service of the terminal device in response to the terminal device entering the DSDA state, the method further comprises:

under the condition that the terminal equipment is initially network-resident, determining a second DSDA frequency band combination from the plurality of DSDA frequency band combinations according to the radio frequency capability of the terminal equipment and the network signal strength of a second position where the terminal equipment is positioned; wherein the second position is a different position than the first position; the second DSDA frequency band combination comprises a third frequency band corresponding to the first communication card and a fourth frequency band corresponding to the second communication card;

and executing initial network residence operation on the terminal equipment based on the second DSDA frequency band combination, wherein the frequency band corresponding to the first communication card after initial network residence is the third frequency band, and the frequency band corresponding to the second communication card after initial network residence is the fourth frequency band.

6. The method according to any one of claims 1 to 5, wherein the obtaining, in response to the terminal device entering a DSDA state, a performance backoff parameter for a data service of the terminal device comprises:

and under the condition that the position of the terminal equipment is changed, responding to the condition that the terminal equipment enters a DSDA state, and acquiring the performance rollback parameter of the data service of the terminal equipment.

7. The method according to any of claims 1 to 5, wherein the radio frequency capabilities of the terminal device comprise at least one of: and transmitting antenna coupling modes of the first communication card and the second communication card in the DSDA state, transmitting channel switching capacity of the first communication card, the number of receiving channels of the first communication card in the dual-receiving dual-standby state and the number of receiving channels of the first communication card in the dual-receiving dual-standby state are set as rollback parameters.

8. The method according to claim 1, wherein the performance back-off parameter comprises a network transmission rate decrease magnitude and/or a bit error rate increase magnitude, and wherein determining a first DSDA frequency band combination among a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal device and the network signal strength of the first location where the terminal device is located if the performance back-off parameter satisfies a back-off condition comprises:

And under the condition that the network transmission rate reduction amplitude is higher than a network transmission rate back-off threshold value and/or the bit error rate increase amplitude is higher than a bit error rate back-off threshold value, determining a first DSDA frequency band combination in a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment and the network signal strength of a first position where the terminal equipment is located.

9. The method of claim 1, wherein the performing a band calibration operation on the first communication card and the second communication card based on the first DSDA band combination comprises:

searching a first cell comprising the first DSDA frequency band combination;

and under the condition that the first cell is searched, selecting the first cell, controlling the first communication card to reside in the first frequency band, and controlling the second communication card to reside in the second frequency band.

10. The method according to claim 9, wherein the method further comprises:

determining a third DSDA frequency band combination from the plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal device and the network signal strength of a third position where the terminal device is located under the condition that the first cell is not searched; the third DSDA frequency band combination comprises a fifth frequency band corresponding to the first communication card and a sixth frequency band corresponding to the second communication card;

Searching a second cell comprising the third DSDA frequency band combination;

and under the condition that the second cell is searched, selecting the second cell, controlling the first communication card to reside in the fifth frequency band, and controlling the second communication card to reside in the sixth frequency band.

11. A dual card communication apparatus, the apparatus comprising:

the acquisition module is used for responding to the terminal equipment entering a DSDA state and acquiring performance rollback parameters of data service of the terminal equipment;

the DSDA frequency band combination determining module is used for determining the radio frequency capability score of each DSDA frequency band combination in a plurality of DSDA frequency band combinations based on the radio frequency capability of the terminal equipment under the condition that the performance rollback parameter meets the rollback condition; determining a signal intensity score of each DSDA frequency band combination based on the network signal intensity of the first position where the terminal equipment is located; determining a first DSDA band combination from the plurality of DSDA band combinations based on the radio frequency capability scores and the signal strength scores for each of the DSDA band combinations; the first DSDA frequency band combination comprises a first frequency band corresponding to a first communication card in the terminal equipment and a second frequency band corresponding to a second communication card in the terminal equipment;

The frequency band calibration module is used for executing frequency band calibration operation on the first communication card and the second communication card based on the first DSDA frequency band combination; the frequency band corresponding to the calibrated first communication card is the first frequency band, and the frequency band corresponding to the calibrated second communication card is the second frequency band.

12. A terminal device, characterized in that the terminal device comprises a memory and a processor; the memory is coupled to the processor; the memory is for storing computer program code comprising computer instructions which, when executed by the processor, cause the terminal device to perform the method of any of claims 1-10.

13. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program or instructions, which when run on a computer, cause the computer to perform the method according to any of claims 1-10.