CN108513718B

CN108513718B - Network communication method and terminal

Info

Publication number: CN108513718B
Application number: CN201680074292.0A
Authority: CN
Inventors: 沈丽; 刘水
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2020-09-08
Anticipated expiration: 2036-12-30
Also published as: WO2018120239A1; CN108513718A

Abstract

The embodiment of the invention provides a network communication method applied to a terminal, wherein the terminal supports a first network and a second network, the first network is different from the second network, the first network at least comprises a first frequency band and a second frequency band, and the second frequency band supports the second network. The method comprises the following steps: the terminal judges whether the first frequency band and the second frequency band meet carrier aggregation; when the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate with the first network and uses the second frequency band to communicate with the second network in a carrier aggregation mode, wherein the terminal uses a set of radio frequency system to communicate with the first network and the second network. The embodiment of the invention utilizes the carrier aggregation to ensure that the terminal of one set of radio frequency system can simultaneously communicate with two networks.

Description

Network communication method and terminal

Technical Field

The present invention relates to communications technologies, and in particular, to a network communication method and a terminal.

Background

A mobile phone supporting 4G (fourth generation mobile communication technology) can operate in a 4G network, and can also operate in a 2G (second generation mobile communication technology)/3G (third generation mobile communication technology) network. Long Term Evolution (LTE) and Voice synchronous Support (SVLTE) can simultaneously support LTE data service and Voice service, namely, the mobile phone can simultaneously work in an LTE network and a 2G/3G network. LTE and Global system for mobile communications (GSM) synchronous support (Simultaneous GSM and LTE, SGLTE) can also simultaneously support LTE data service and voice service. Specifically, the SVLTE supports both an LTE network and a Code Division Multiple Access (CDMA) 2G/3G network. The SGLTE supports both LTE networks and 2G/3G networks of GSM/UTRAN (universal terrestrial radio access network, UMTS terrestrial radio access network) system. However, SVLTE and SGLTE require two sets of radio frequency chips to support LTE data services and voice services, respectively, and are large in power consumption and high in cost.

In order to reduce the cost, the 4G mobile phone can adopt a set of radio frequency chips. For example: for a mobile phone with a 2G/3G network being CDMA, a Single-standby LTE (Single Radio LTE, referred to as SRLTE) can be adopted. SRLTE only has one set of radio frequency chip, and LTE and CDMA network time sharing multiplex. If the mobile phone needs to communicate with the CDMA network during the communication with the LTE network, the mobile phone interrupts the LTE network and communicates with the CDMA network, thereby sacrificing the throughput of the LTE service.

Disclosure of Invention

The embodiment of the invention provides a network communication method and a terminal, which can improve the throughput of LTE service.

In a first aspect, an embodiment of the present invention provides a network communication method, which is applied to a terminal. The terminal supports a first network and a second network, and the first network is different from the second network, for example, the network system is different. The first network may operate in at least a first frequency band and a second frequency band, and the second frequency band supports the second network, that is, the second network may operate in the second frequency band. The method comprises the following steps: the terminal judges whether the first frequency band and the second frequency band meet carrier aggregation; and when the first frequency band and the second frequency band meet carrier aggregation, the terminal adopts a carrier aggregation mode to communicate with the first network by using the first frequency band and communicate with the second network by using the second frequency band. Wherein the terminal uses a set of radio frequency systems for the communication with the first network and the second network. The terminal may include one or more sets of radio frequency systems, but the terminal may use only one set of radio frequency system to communicate with the first network and the second network simultaneously by using the method of the embodiment of the present invention. When the first network is an LTE network and the second network is a CDMA network, the scheme of this embodiment can be used to perform CDMA paging without interrupting the LTE network, thereby improving the throughput of LTE services.

Further, when the first frequency band and the second frequency band satisfy carrier aggregation, the communicating with the first network using the first frequency band and the communicating with the second network using the second frequency band by using carrier aggregation includes:

the terminal acquires a frequency band of the current work of the first network; when the first network does not work in the second frequency band currently and the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate with the first network and uses the second frequency band to communicate with the second network in a carrier aggregation mode; when the first network currently operates in the first frequency band and the second frequency band in a carrier aggregation manner, the first frequency band is a main carrier, and the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate with the first network and uses the second frequency band to communicate with the second network in a carrier aggregation manner. When at least two frequency bands meeting the CA combination can be respectively used by the first network and the second network, the terminal can simultaneously communicate with the first network and the second network in a CA mode.

Further, the communication between the terminal and the second network using the second frequency band may be paging monitoring, or may be information sent by the second network and received by the terminal.

Further, the method further comprises: when the terminal communicates with the first network, the terminal detects a request to communicate with the second network, and then the terminal starts to perform the method of the first aspect.

Further, the terminal may search the first network using the first frequency band and search the second network using the second frequency band in a carrier aggregation manner when starting up to search for a network.

Further, network searching can be performed on the terminal in a standby state for optimization.

Scheme of terminal searching second network: the terminal acquires a frequency band of the current work of the first network; when the first network does not work in the second frequency band currently and the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate with the first network and uses the second frequency band to search the second network in a carrier aggregation mode; when the first network currently operates in the first frequency band and the second frequency band in a carrier aggregation manner, the first frequency band is a main carrier, and the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate with the first network and uses the second frequency band to search the second network in the carrier aggregation manner.

Scheme of terminal searching first network: the terminal acquires a frequency band required by the first network to be searched; and when the frequency band required by searching the first network is the first frequency band and the second frequency band meet carrier aggregation, the terminal searches the first network by using the first frequency band and communicates with the second network by using the second frequency band in a carrier aggregation mode.

The embodiments of the present invention do not limit the specific types of the first network and the second network. As long as there are a first frequency band and a second frequency band that can satisfy the CA combination, and the first frequency band and the second frequency band can support the first network and the second network respectively, the method provided by the embodiment of the present invention can be applied to perform communication of both networks simultaneously.

In a second aspect, an embodiment of the present invention provides a network communication method applied to a terminal. And a first Subscriber Identity Module (SIM) card and a second SIM card are installed in the terminal. The first SIM card supports a first network. The first network supports at least a first frequency band and a second frequency band. The second SIM card supports a second network. The second network supports at least the second frequency band. The method comprises the following steps: the terminal judges whether the first frequency band and the second frequency band meet carrier aggregation; when the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate the first SIM card with the first network and uses the second frequency band to communicate the second SIM card with the second network in a carrier aggregation mode. Wherein the first SIM card and the second SIM card are in the communication with the first network and the second network using a set of radio frequency systems; the first network is different from the second network. The terminal can include one or more sets of radio frequency systems, but the terminal can simultaneously support the communication between two SIM cards and the network side by using only one set of radio frequency system by using the method of the embodiment of the invention.

Further, the method further comprises: when the first SIM card is communicated with the first network, the terminal detects a communication request of the second SIM card; or, when the second SIM card communicates with the second network, the terminal detects a communication request of the first SIM card; the terminal then performs the method provided by the second aspect above.

Further, when the first frequency band and the second frequency band satisfy carrier aggregation, the performing, by the terminal, communication between the first SIM card and the first network using the first frequency band and communication between the second SIM card and the second network using the second frequency band in a carrier aggregation manner includes:

the terminal acquires the current working frequency band of the first SIM card; when the first SIM card does not work in the second frequency band currently, and the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate with the first network and uses the second frequency band to communicate with the second network in a carrier aggregation mode; when the first SIM card currently operates in the first frequency band and the second frequency band in a carrier aggregation manner, and the first frequency band and the second frequency band satisfy carrier aggregation, the terminal performs, in a carrier aggregation manner, communication between the first SIM card and the first network using the first frequency band and communication between the second SIM card and the second network using the second frequency band. When at least two frequency bands meeting the CA combination can be respectively used by the first SIM card and the second SIM card, the terminal can adopt the CA mode and simultaneously support the communication between the two SIM cards and the network side.

Optionally, the communication between the first SIM card and the first network is downlink communication, and the communication between the second SIM card and the second network is downlink communication. Or the communication between the first SIM card and the first network is uplink communication, and the communication between the second SIM card and the second network is uplink communication.

The embodiment of the invention does not limit the specific types of the first frequency band and the second frequency band, nor the specific types of the two SIM cards. As long as the first frequency band and the second frequency band satisfy the CA combination, and the first frequency band and the second frequency band can be used by the first SIM card and the second SIM card, respectively, the scheme that can use the embodiment of the present invention is that the two SIM cards operate in parallel.

In a third aspect, an embodiment of the present invention provides a network communication apparatus, which is included in a terminal, and has a function of implementing a terminal behavior in each method described in the first aspect or the second aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In a fourth aspect, an embodiment of the present invention provides a terminal, including: processors, memory, radio frequency circuits, etc.; the memory is used for storing data; the radio frequency circuit is used for receiving and transmitting signals and/or data when the terminal is communicated with the network side; the processor is configured to perform the various methods described in the first or second aspects above.

Embodiments of the present invention also provide a computer storage medium for storing computer software instructions for a terminal in any one of the above aspects, which includes a program or method designed to perform the above aspects.

An embodiment of the present invention further provides a data processing system, which includes modules for executing the methods provided in any of the above aspects.

An embodiment of the present invention further provides a computer program for executing the methods provided in any of the above aspects.

Drawings

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

Fig. 1 is a block diagram of a partial structure of a terminal according to an embodiment of the present invention;

fig. 2 is a flowchart of a network communication method according to an embodiment of the present invention;

fig. 3 is a flowchart of another network communication method according to an embodiment of the present invention;

fig. 4 is a flowchart of another network communication method according to an embodiment of the present invention;

fig. 5 is a flowchart of another network communication method according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a network searching method according to an embodiment of the present invention;

fig. 7 is a flowchart of another network communication method according to an embodiment of the present invention;

fig. 8 is a flowchart of another network communication method according to an embodiment of the present invention;

fig. 9 is a flowchart of another network communication method according to an embodiment of the present invention;

fig. 10 is a flowchart of another network communication method according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a radio frequency circuit of the terminal according to the embodiment of the present invention;

fig. 12 is a schematic diagram of another rf circuit of the terminal according to the embodiment of the present invention;

fig. 13 is a schematic diagram of another rf circuit of the terminal according to the embodiment of the present invention.

Detailed Description

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

The network communication method provided by each embodiment of the invention is applied to the mobile terminal. The mobile terminal may be, for example: mobile phones, Tablet Personal computers (Tablet Personal computers), Laptop computers (Laptop computers), digital cameras, Personal Digital Assistants (PDAs), navigation devices, Mobile Internet Devices (MIDs), Wearable devices (Wearable devices), and the like.

The mobile terminal applied in the embodiment of the invention can be inserted with a Subscriber Identity Module (SIM) card and can reside in two or more networks of different systems based on the SIM card. The 2G, 3G, LTE, 4G, 5G, etc. are networks with different standards. The mobile terminal may simultaneously reside in two or more networks of different systems in some scenarios, and may not simultaneously reside in two or more networks in other scenarios. The mobile terminal applied in the embodiment of the invention can be inserted with at least two SIM cards, and the terminal can simultaneously communicate with the network side based on the two SIM cards; during communication, the two networks with the two SIM cards respectively working may have the same or different systems.

Fig. 1 is a block diagram of a partial structure of a terminal according to an embodiment of the present invention. The terminal is described by taking a mobile phone 100 as an example, and referring to fig. 1, the mobile phone 100 includes: a Radio Frequency (RF) circuit 110, a power supply 120, a processor 130, a memory 140, an input unit 150, a display unit 160, a sensor 170, an audio circuit 180, and a wireless fidelity (WiFi) module 190. Those skilled in the art will appreciate that the handset configuration shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes the components of the mobile phone 100 in detail with reference to fig. 1:

the RF circuit 110 may be used for transmitting and receiving information or for receiving and transmitting signals during a call. For example: RF circuitry 110 may send downlink data received from the base station to processor 130 for processing and may send uplink data to the base station. In general, RF circuits include, but are not limited to, an RF chip, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, a radio frequency switch, and the like. In addition, the RF circuitry 110 may also communicate wirelessly with networks and other devices. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc. In addition, the RF circuit in the terminal provided in the embodiment of the present invention may also support uplink aggregation (CA) and downlink CA. The combination of carrier aggregation specifically supported is determined by the hardware of the RF circuitry. CA is a technique for increasing transmission bandwidth in an LTE-a (LTE-Advanced) system. CA technology may aggregate two or more carriers together for transmission. For example: when the RF circuit supports the combination of downlink CA as B1+ B5, the carriers of B1 and B5 frequency bands may transmit downlink data together; when the RF circuit supports the combination of downlink CA as B1+ B3, the carriers of B1 and B3 frequency bands may transmit downlink data together; when the combination of the uplink CA supported by the RF circuit is B1+ B3, the carriers of the B1 and the B3 frequency bands can transmit uplink data together; b1 is LTE band 1(band1), B3 is LTE band 3(band 3), and B5 is LTE band 5(band 5).

The memory 140 may be used to store software programs and modules, and the processor 130 executes various functional applications and data processing of the mobile phone 100 by operating the software programs and modules stored in the memory 140. The memory 140 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone 100, and the like. Further, the memory 140 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 150 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone 100. Specifically, the input unit 150 may include a touch panel 151 and other input devices 152. The touch panel 151, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 151 (e.g., an operation performed by the user on or near the touch panel 151 using any suitable object or accessory such as a finger or a stylus), and drive a corresponding connection device according to a preset program. Alternatively, the touch panel 151 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 130, and can receive and execute commands sent by the processor 130. In addition, the touch panel 151 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 150 may include other input devices 152 in addition to the touch panel 151. In particular, other input devices 152 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 160 may be used to display information input by or provided to the user and various menus of the cellular phone 100. The display unit 160 may include a display panel 161, and optionally, the display panel 161 may be configured in the form of a Liquid Crystal Display (LCD), an electromechanical laser display (OLED), or the like. Further, the touch panel 151 may cover the display panel 161, and when the touch panel 151 detects a touch operation thereon or nearby, the touch panel transmits the touch operation to the processor 130 to determine the type of the touch event, and then the processor 130 provides a corresponding visual output on the display panel 161 according to the type of the touch event. Although the touch panel 151 and the display panel 161 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile phone 100, in some embodiments, the touch panel 151 and the display panel 161 may be integrated to implement the input and output functions of the mobile phone 100.

The handset 100 may also include at least one sensor 170, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 161 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 161 and/or the backlight when the mobile phone 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), and the like. The mobile phone 100 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.

The audio circuitry 180, speaker 181, microphone 182 may provide an audio interface between a user and the handset 100. The audio circuit 180 may transmit the electrical signal converted from the received audio data to the speaker 181, and the electrical signal is converted into a sound signal by the speaker 181 and output; on the other hand, the microphone 182 converts the collected sound signals into electrical signals, which are received by the audio circuit 180 and converted into audio data, which are then output to the RF circuit 110 for transmission to, for example, another cell phone, or to the memory 140 for further processing.

WiFi belongs to short-distance wireless transmission technology, and the mobile phone 100 can help the user send and receive e-mails, browse web pages, access streaming media, etc. through the WiFi module 190, which provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 190, it is understood that it does not belong to the essential constitution of the handset 100, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 130 is a control center of the mobile phone 100, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone 100 and processes data by operating or executing software programs and/or modules stored in the memory 140 and calling data stored in the memory 140, thereby implementing various services based on the mobile phone. Optionally, processor 130 may include one or more processing units; preferably, the processor 130 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 130.

In embodiments of the present invention, processor 130 may execute program instructions stored in memory 140 to implement the methods illustrated in any of the embodiments of fig. 2-10 below.

The handset 100 also includes a power supply 120 (e.g., a battery) for powering the various components, which may preferably be logically connected to the processor 130 via a power management system, such that the power management system may manage charging, discharging, and power consumption functions.

Although not shown, the mobile phone 100 may further include a camera, a bluetooth module, etc., which will not be described herein.

Fig. 2 is a flowchart of a network communication method according to an embodiment of the present invention. The method is applied to a terminal, wherein the terminal supports a first network and a second network, and the first network is different from the second network. The first network at least comprises a first frequency band and a second frequency band, namely the first network can work at least in the first frequency band and the second frequency band. Although the first network can operate in the first frequency band and the second frequency band, in an actual scenario, the first network may operate only in the first frequency band, may operate only in the second frequency band, and may also operate in both the first frequency band and the second frequency band. The second frequency band supports the second network, i.e. the second network is capable of operating in the second frequency band. As shown in fig. 2, the method includes:

step 201, the terminal determines whether the first frequency band and the second frequency band satisfy carrier aggregation.

The hardware of the terminal may decide which carriers the terminal supports for carrier aggregation. The carrier aggregation described in the embodiments of the present invention generally refers to inter-band carrier aggregation, that is, carrier aggregation between multiple frequency bands. The first network is an LTE network and the second network is a CDMA network.

Table 1 shows frequency band information of the LTE network. Table 2 shows the band information of band 0(band class 0) of CDMA. Uplink and downlink band bandwidth information for LTE band 1-band 5(B1-B5) is listed in table 1. Table 2 lists the uplink and downlink band bandwidth information for band 0(B0) of CDMA. As can be seen from tables 1 and 2, the band bandwidths of B5 of LTE and B0 of CDMA are the same, namely TX 824MHz-849 MHz and RX 869MHz-894 MHz. Thus, B5 of LTE can be used for network communication of CDMA. The second frequency band is, for example, LTE B5, and the first frequency band may be any one of other frequency bands of LTE, for example, B1-B4.

TABLE 1

Frequency band	TX (uplink)	RX (Down)
				1	1920MHz-1980MHz	2110MHz-2170 MHz	FDD
2	1850MHz-1910MHz	1930MHz-1990 MHz	FDD
				3	1710MHz-1785MHz	1805MHz-1880 MHz	FDD
4	1710MHz-1755MHz	2110MHz-2155 MHz	FDD
				5	824MHz-849MHz	869MHz-894MHz	FDD

TABLE 2

Frequency band	TX (transmitting)	RX (reception))
				0	824MHz-849MHz	869MHz-894MHz	FDD

The FDD is Frequency Division Duplexing (Frequency Division Duplexing).

The terminal monitors the frequency band where the LTE can currently reside, for example, the terminal can evaluate the signal quality of each frequency band of the LTE and find the frequency band which can currently work. The first frequency band and the second frequency band described in this embodiment are frequency bands available for LTE at present, and the second frequency band is a frequency band suitable for CDMA. The terminal stores which carriers the terminal supports for carrier aggregation. After acquiring the first frequency band and the second frequency band, the terminal compares the acquired first frequency band and the acquired second frequency band with the stored carrier aggregation combination or judges whether the first frequency band and the second frequency band meet carrier aggregation by inquiring stored carrier aggregation information. For example: the carrier aggregation supported by the terminal is LTE B1+ B5, and when the first frequency band is B1 and the second frequency band is B5, the first frequency band and the second frequency band meet the carrier aggregation; when the first frequency band is B3 and the second frequency band is B5, the first frequency band and the second frequency band do not satisfy carrier aggregation. Another example is: the carrier aggregation supported by the terminal is LTE B3+ B5, and when the first frequency band is B1 and the second frequency band is B5, the first frequency band and the second frequency band do not meet the carrier aggregation; when the first frequency band is B3 and the second frequency band is B5, the first frequency band and the second frequency band satisfy carrier aggregation. For another example: the carrier aggregation supported by the terminal is LTE B1+ B3+ B5, and when the first frequency band is B1 and the second frequency band is B5, or when the first frequency band is B3 and the second frequency band is B5, both the first frequency band and the second frequency band satisfy the carrier aggregation.

Step 202, when the first frequency band and the second frequency band satisfy carrier aggregation, the terminal uses the first frequency band to communicate with the first network and uses the second frequency band to communicate with the second network in a carrier aggregation manner.

Wherein the terminal uses a set of radio frequency systems to perform the communication with the first network and the second network. The rf system corresponds to the rf circuit shown in fig. 1, and a set of rf systems may include one or more antennas, such as a main set antenna and a diversity antenna.

When it is determined that the first frequency band and the second frequency band satisfy carrier aggregation, the first frequency band and the second frequency band may be simultaneously used. Thus, the terminal may communicate with the first network using the first frequency band, while communicating with the second network using the second frequency band. Taking LTE and CDMA as examples, the following three ways may be included for the terminal to communicate with the first network and the second network.

Mode 1: the terminal can use the first frequency band to perform LTE data service, and simultaneously, use the second frequency band to perform CDMA paging or voice call, thereby realizing the parallel of the LTE data service and the CDMA voice service.

Specifically, step 202 may include: a terminal acquires a frequency band of the current work of an LTE network; when the first frequency band and the second frequency band meet carrier aggregation, when the LTE network does not work at the second frequency band at present, the terminal uses the first frequency band to communicate with the LTE network and uses the second frequency band to communicate with the CDMA network in a carrier aggregation mode; when the LTE network currently operates in the first frequency band and the second frequency band in a carrier aggregation manner and the first frequency band is a main carrier, the terminal may stop the second frequency band of the LTE network, and then use the first frequency band to communicate with the LTE network and use the second frequency band to communicate with the CDMA network in a carrier aggregation manner. The communication between the terminal and the CDMA network using the second frequency band may specifically be: and the terminal uses the second frequency band to carry out paging monitoring of the CDMA network. When the terminal is in an LTE network link state, the terminal needs to periodically perform paging monitoring of the CDMA network, and when a paging monitoring period arrives, the terminal may perform step 201 and step 202; or the terminal may perform step 201 in advance, and then perform step 202 when the paging listening period arrives. The step of the terminal using the second frequency band to communicate with the CDMA network may specifically be: the terminal receives various information, such as control information, data information, etc., transmitted by the CDMA network using the second frequency band. Before step 202, the terminal may communicate with the first network, and in the process of communicating with the first network, if the terminal detects a request for communication with the second network, steps 201 and 202 may be performed, or the terminal may perform step 201 in advance and perform step 202 after detecting a communication request. The request for communicating with the second network may be the above-mentioned paging listening request, or may be another communication request.

Mode 2: the terminal can search the LTE network by using the first frequency band and search the CDMA network by using the second frequency band simultaneously, so that the simultaneous network search of the LTE and the CDMA is realized. Specifically, when the terminal performs a power-on network search, the terminal may search for the LTE network and the CDMA network at the same time, that is, the terminal searches for the LTE network using the first frequency band and searches for the CDMA network using the second frequency band in a carrier aggregation manner.

Mode 3: the terminal may communicate with the LTE network using the first frequency band and search for the CDMA network using the second frequency band; alternatively, the terminal may search for an LTE network using the first frequency band and communicate with a CDMA network using the second frequency band.

Specifically, step 202 may include: a terminal acquires a frequency band of the current work of an LTE network; when the first frequency band and the second frequency band meet carrier aggregation, when the LTE network does not work at the second frequency band at present, the terminal adopts a carrier aggregation mode, uses the first frequency band to communicate with the LTE network and uses the second frequency band to search the CDMA network; when the LTE network currently operates in the first frequency band and the second frequency band in a carrier aggregation manner and the first frequency band is a main carrier, the terminal may stop the second frequency band of the LTE network, and then use the first frequency band to communicate with the LTE network and use the second frequency band to search for the CDMA network in the carrier aggregation manner.

Alternatively, step 202 may comprise: a terminal acquires a frequency band of the current work of an LTE network; when the first frequency band and the second frequency band meet carrier aggregation, when the frequency band required by the first network is searched for being the first frequency band, the terminal searches for the LTE network by using the first frequency band and communicates with the CDMA network by using the second frequency band in a carrier aggregation mode.

In the prior art, a terminal using a set of radio frequency system cannot support both LTE data service and CDMA voice service, and when the LTE service is in a link state, if CDMA paging, network search, or other services are required, the LTE service needs to be stopped to perform the CDMA service. The embodiment of the invention utilizes the carrier aggregation technology, and the terminal can simultaneously support LTE data service and CDMA voice service.

Fig. 3 is a flowchart of another network communication method according to an embodiment of the present invention. Based on the embodiment shown in fig. 2, fig. 3 shows a specific solution. Take LTE network as the first network and CDMA network as the second network as an example. As shown in fig. 3, the method includes:

step 301, the terminal works in SRLTE standby phase. The terminal uses a set of radio frequency system to work in the SRLTE of the single-standby LTE.

Step 302, the terminal determines whether the frequency band of the current LTE operation and the CDMA frequency band are CA combinations, if not, step 303 is executed, and if yes, step 305 is executed. As previously mentioned, the B5 for LTE is the same frequency band as the BC0 for CDMA. The terminal can obtain the combination of the CAs supported by the terminal, and then judge whether the frequency band of the current LTE operation and B5 form the CA.

Step 303, the terminal detects the frequency band information of the LTE, judges whether there is LTE frequency band information meeting the CA combination, and if so, executes step 304; if not, it indicates that there is no frequency band supporting the CA combination currently, the terminal may adopt the prior art without performing the steps below the scheme, or the terminal may continue to perform step 305, and in step 307, it is determined again whether there is a frequency band satisfying the CA combination.

And step 304, the terminal changes the working frequency band of the LTE, so that the LTE works in the frequency band meeting the CA combination, and the LTE and the CDMA can respectively work in the frequency band meeting the CA combination for standby. For example: the CA combination supported by the terminal is B1+ B5, and the working band of LTE is B3 in step 302, that is, the CA combination is not satisfied, so the terminal can perform signal evaluation on B1, and if the signal of B1 meets the camping condition, the terminal can camp LTE on B1, so that the LTE working band (B1) and the CDMA band (LTE B5) of the terminal satisfy the CA combination.

Step 305, the terminal detects the arrival of the CDMA paging cycle. And when the terminal is resident in the LTE network, the CDMA paging is carried out periodically. Step 305 is not triggered by

steps

302 and 304, but by the paging cycle of CDMA. After step 305, step 306 is performed.

Step 306, the terminal judges whether the LTE is in a link state. If in the linked state, step 307 is performed. If not, the terminal may use the prior art procedure for CDMA paging, for example: the terminal can determine whether the CDMA received signal is bad. If the Signal quality of the CDMA is not good, (for example, RSSI (Received Signal Strength Indicator) or SNR (Signal-Noise ratio) is lower than a certain threshold), the terminal monitors the CDMA paging by using the main diversity antenna, and if the Signal quality of the CDMA is good, the terminal monitors the CDMA paging by using the diversity antenna. The terminal may determine whether the LTE is in a link state according to the state reported by the LTE physical layer, for example.

Step 307, the terminal determines whether the frequency band of the current LTE operation and the CDMA frequency band are CA combinations, if yes, step 308 is executed, and if not, the terminal may adopt the prior art to interrupt the LTE service and monitor the CDMA paging. In this embodiment, although it has been determined in step 302 whether the LTE operating band and the CDMA band are CA combinations, in the embodiment, the determination is performed again in step 307 between step 302 and step 307 because the LTE operating band may have changed due to a problem of the network. In other embodiments, step 307 may be omitted and step 308 may be performed directly.

Step 308, the terminal determines whether the current LTE is working in the CA mode, if so, step 309 is executed, and if not, step 318 is executed. Where LTE may currently be working in CA combinations, for example: the CA combinations supported by the terminal are B1+ B5 and B1+ B3, and the LTE network of the terminal may currently operate in B1 and B5 or B1 and B3.

Step 309, the terminal determines whether the CA combination of the LTE operation includes B5, if not, step 310 is executed, and if yes, step 311 is executed. The CA combination for LTE operation may contain B5, and the page may not contain B5.

At step 310, the terminal listens for CDMA pages using the B5 channel. Because B5 is not currently occupied by LTE, and the frequency band in which B5 and LTE are currently operating is CA combined, the terminal can listen for CDMA pages on B5 without breaking the LTE link.

In step 311, the terminal determines whether B5 of LTE is the primary carrier, if not, step 312 is executed, and if yes, step 315 is executed.

In step 312, the terminal stops B5 of LTE, and then performs step 313. At this time, since B5 is not the primary carrier, the terminal may stop only B5 of LTE, which may also continue to operate in other frequency bands.

Step 313, the terminal monitors the CDMA paging using B5, and after the monitoring is completed, step 314 is executed.

And step 314, the terminal recovers the normal work of B5 of LTE, namely, the terminal uses B5 to carry out LTE service.

Step 315, the terminal stops the LTE service, and then executes step 316. Since B5 is the LTE primary carrier, the entire LTE service needs to be stopped.

Step 316, the terminal monitors the CDMA paging, and after the monitoring is completed, step 317 is executed.

And step 317, the terminal recovers the normal work of the LTE.

And step 318, the terminal does not interrupt the work of the LTE and monitors the CDMA paging by using the B5 channel. It is determined that the band of the current LTE and B5 satisfy CA combination through step 307 and it is determined that the current LTE is not operating in CA mode through step 308, and thus, the current LTE is not operating in B5, so B5 can be directly used to listen for CDMA paging without interrupting LTE.

Fig. 4 is a flowchart of another network communication method according to an embodiment of the present invention. Fig. 4 provides a method similar to that provided in fig. 3, and as shown in fig. 4, steps 301 to 306 are the same as those shown in fig. 3, but after the terminal determines that LTE is in a link state in step 306, step 307 is not executed, but step 308 is executed.

Step 308, the terminal determines whether the current LTE is working in the CA mode, if so, performs step 309 and subsequent steps which are the same as those shown in fig. 3, and if not, performs step 411.

Step 411, the terminal determines whether the current LTE works in B5, if not, step 412 is executed, and if yes, step 413 is executed. In this embodiment, after determining that the LTE operating frequency band and the CDMA frequency band are CA combinations in

steps

302 and 304, when a CDMA paging cycle is reached, it may be determined whether the LTE operating frequency band and the CDMA frequency band are CA combinations, but after determining that the current LTE does not operate in the CA mode, it is determined whether the LTE currently operates in B5.

And step 412, the terminal monitors the CDMA paging by using the B5 channel without interrupting the LTE service. Since the terminal does not currently use B5 for LTE traffic and the frequency band in which LTE is currently operating and B5 satisfy CA, the terminal can listen to CDMA paging using B5 without interrupting LTE traffic.

In step 413, the terminal stops the LTE service and then performs step 414. Although it is determined in step 302 and step 304 that the LTE band and the CDMA band are CA, in step 411, the LTE band may be B5, and when the LTE currently operates in B5, the B5 and the CDMA BC0 cannot simultaneously operate, and the LTE mode needs to be stopped, and the RF path is made available for CDMA monitoring.

Step 414, the terminal monitors the CDMA paging, and after the monitoring is completed, step 415 is executed.

Step 415, the terminal resumes normal LTE operation.

Fig. 3 and 4 are both illustrated with CDMA paging as an example. The method provided by the embodiment of the invention can ensure the LTE data transmission performance and the CDMA paging cycle call-through rate to the maximum extent. Embodiments of the present invention are not limited to CDMA paging and may be other types of CDMA communications.

Fig. 5 is a flowchart of another network communication method according to an embodiment of the present invention. Based on the embodiment shown in fig. 2, fig. 5 shows a scenario when a network search is started. Take LTE network as the first network and CDMA network as the second network as an example. As shown in fig. 5, the method includes:

step 501, the terminal is started.

And step 502, the terminal judges whether frequency bands B1/B3 and B5 of the LTE meet CA, if so, the step 503 is executed, and if not, the network is searched according to the existing network searching mode. The existing network searching mode can be as follows: the terminal firstly carries out CDMA network searching and registration, and then carries out LTE network searching and registration after CDMA registration. The terminal can read the previously stored information, and can also know whether the frequency bands B1/B3 and B5 satisfy CA by means of query. Wherein any one or more of the following are cases where CA is satisfied: b1 and B5 satisfy CA, B3 and B5 satisfy CA, and B1, B3, and B5 satisfy CA.

And 503, in the network searching stage of starting up, the terminal simultaneously starts up the CDMA network searching and the LTE network searching by using the CA channel. The terminal uses B5 to perform CDMA network searching, and uses B1 and/or B3 which meet CA combination to perform LTE network searching. If the current CA combination is B1 and B5, then B1 is used for LTE network searching; if the current CA combination is B3 and B5, then B3 is used for LTE network searching; if the current CA combination is B1, B3 and B5, then B1, or B3, or B1 and B3 are used for LTE network searching.

And step 504, the terminal judges whether an LTE network is searched in B1/B3, if so, the step 505 is executed, and if not, the step 506 is executed.

Step 505, after the terminal registers the CDMA network, the terminal registers the LTE network. When the CDMA and LTE search successfully, the CDMA network is registered first, and then the LTE network is registered. After the CDMA network search is successful, the terminal can register in CDMA, and the operation of the terminal to register in CDMA network is irrelevant to whether the LTE network is searched in step 504.

Step 506, the terminal judges whether the CDMA network is in an idle state, if so, step 507 is executed, and if not, step 506 is repeatedly executed.

And step 507, the terminal performs LTE network searching in the frequency band B5. After the terminal fails to perform LTE network searching at B1/B3, namely when the LTE B1/B3 has no network, the terminal needs to wait for the CDMA to be idle and then perform LTE network searching by using B5.

By using the method of the embodiment, the terminal can search for the network by using the CDMA and LTE B1/B3 at the same time when the terminal is powered on, as shown in fig. 6, the LTE B1/B3 searches for the network by using the time of searching for the network by using the CDMA BC0, and after CDMA registration, LTE registration can be performed, so that the time of searching for the network by using the LTE and the time of registration are increased.

Fig. 7 is a flowchart of another network communication method according to an embodiment of the present invention. Based on the embodiment shown in fig. 2, fig. 7 shows a network searching scheme in a terminal standby state. Take LTE network as the first network and CDMA network as the second network as an example. As shown in fig. 7, the method includes:

step 701, after the terminal is successfully booted and searches for a network, the terminal is in a normal standby state.

And step 702, after the network drop occurs in the terminal, judging whether the network is a CDMA network drop or an LTE network drop, if the network is the CDMA network drop, executing step 703, and if the network is the LTE network drop, executing step 707.

And step 703, the terminal judges whether the current LTE works in B5, if not, step 704 is executed, and if so, step 705 is executed.

Step 704, the terminal judges whether the frequency band of the B5 and the current LTE is CA, if so, step 706 is executed, otherwise, the terminal stops the LTE service according to the scheme of the prior art, and performs CDMA network searching.

Step 705, the terminal stops the LTE B5 service, and then executes step 706. When the LTE is operating at B5, the LTE service needs to be stopped for CDMA network searching.

Step 706, the terminal searches for a CDMA network.

And step 707, the terminal determines whether the network searching is performed by LTE B5, if not, step 708 is executed, and if so, step 710 is executed. After the LTE network is dropped, it may be determined whether a frequency band specifically to be searched is B5.

Step 708, the terminal judges whether the frequency bands of B5 and LTE network searching meet CA, if yes, step 709 is executed, if no, the terminal adopts the prior art, and when the CDMA network is idle, the terminal performs LTE network searching.

And step 709, the terminal searches for the LTE network by using the CA channel.

Step 710, the terminal determines whether the current CDMA is in a service mode, i.e., determines whether the current CDMA is in a working state, if so, step 710 is repeatedly executed, and if not, step 711 is executed.

And step 711, the terminal intermittently searches for the LTE B5 network by using the CDMA standby mode. When the CDMA is in an idle state, the terminal may search for the network LTE B5 using the idle time.

The embodiments shown in fig. 2-7 are exemplified by an LTE network and a CDMA network. However, the embodiment of the present invention does not limit the specific types of the first network and the second network, for example: the first network and the second network may be 2G, 3G, LTE, 4G, 5G, or other standard networks. As long as there are a first frequency band and a second frequency band that can satisfy the CA combination, and the first frequency band and the second frequency band can support the first network and the second network respectively, the method provided by the embodiment of the present invention can be applied to perform communication of both networks simultaneously.

The embodiments shown in fig. 2-7 may be applied to downlink communications. Similarly, when the terminal performs uplink communication, a similar scheme may be used.

Fig. 8 is a flowchart of another network communication method according to an embodiment of the present invention. The method is applied to a terminal, and at least two SIM cards, namely a first SIM card and a second SIM card, can be installed in the terminal. The first SIM card supports at least a first frequency band and a second frequency band, that is, the first SIM card can operate at least at the first frequency band and the second frequency band. Although the first SIM card can operate in the first frequency band and the second frequency band, in an actual scenario, the first SIM card may operate only in the first frequency band, may operate only in the second frequency band, and may also operate in the first frequency band and the second frequency band simultaneously. The second SIM card at least supports the second frequency band, that is, the second SIM card can operate in the second frequency band.

As shown in fig. 8, the method includes:

step 801, the terminal determines whether the first frequency band and the second frequency band satisfy carrier aggregation. How to judge whether the two frequency bands satisfy CA can refer to the related descriptions in

steps

201 and 202.

Step 802, when the first frequency band and the second frequency band satisfy carrier aggregation, the terminal uses the first frequency band to perform communication between the first SIM card and the network and uses the second frequency band to perform communication between the second SIM card and the network in a carrier aggregation manner.

And the first SIM card and the second SIM card communicate with a network by using a set of radio frequency system.

The method may further comprise step 803 (not shown in the figure) before the terminal communicates with the network side in step 802.

Step 803, when the first SIM card communicates with a network, the terminal detects a communication request of the second SIM card; or, when the second SIM card communicates with a network, the terminal detects a communication request of the first SIM card. The first SIM card (or the second SIM card) may communicate with the network side through the first frequency band or the second frequency band, and after detecting a request of another SIM card, the terminal may adjust the frequency band in which the first SIM card operates, so that the two cards operate on the frequency bands satisfying the CA, respectively. After the terminal detects the communication request of the first SIM card or the second SIM card, the terminal may obtain whether there are the first frequency band and the second frequency band that satisfy the CA, and if so, execute step 802.

In particular embodiments, step 802 may include: the terminal acquires the current working frequency band of the first SIM card; when the first frequency band and the second frequency band meet carrier aggregation, and when the first SIM card does not work in the second frequency band currently, the terminal adopts a carrier aggregation mode to use the first frequency band to carry out communication between the first SIM card and a network and use the second frequency band to carry out communication between the second SIM card and the network; when the first SIM card works in the first frequency band and the second frequency band in a carrier aggregation manner currently, the terminal uses the first frequency band to perform communication between the first SIM card and the network and uses the second frequency band to perform communication between the second SIM card and the network in the carrier aggregation manner. The communication between the first SIM card and the network by the terminal using the first frequency band may specifically be: the first SIM card of the terminal communicates with the network side through the first frequency band, or the terminal communicates with the network side through the first frequency band by using the first SIM card; the communication between the second SIM card and the network by the terminal using the second frequency band may specifically be: and the second SIM card of the terminal communicates with the network side through the first frequency band, or the terminal communicates with the network side through the first frequency band by using the second SIM card.

The communication between the first SIM card and the network is downlink communication, and the communication between the second SIM card and the network is downlink communication; or, the communication between the first SIM card and the network is uplink communication, and the communication between the second SIM card and the network is uplink communication.

Fig. 9 is a flowchart of another network communication method according to an embodiment of the present invention. Based on the embodiment shown in fig. 8, fig. 9 shows a specific scheme of downlink communication. Take the first band as B1 or B3 and the second band as B5 as an example. As shown in fig. 9, the method includes:

and step 901, the terminal is in a dual-card standby mode. The terminal is equipped with two cards, card 1 and card 2, corresponding to the first SIM card and the second SIM card in the above embodiments, respectively.

Step 902, the terminal obtains the downlink working frequency bands of the card 1 and the card 2.

Step 903, the terminal determines whether the operating frequency band of the card 1 and the operating frequency band of the card 2 are the CA combination, if not, step 904 is executed, and if so, step 906 is executed.

Step 904, the terminal detects the neighbor cell information of the card 1 and the card 2, judges whether a frequency band meeting the CA combination can be resided, if so, executes step 905; if not, it indicates that there is no frequency band supporting the CA combination currently, the terminal may adopt the prior art without performing the steps below the present solution or the terminal may continue to perform step 906, and in step 908, it is determined again whether there is a frequency band satisfying the CA combination.

Step 905, the terminal changes the operating frequency band of the card 1 or the card 2, so that the card 1 and the card 2 respectively operate in the frequency band satisfying the CA.

In step 906, the terminal detects that a card, such as card 2, needs to use the RF resource, and then proceeds to step 907.

Step 907, the terminal determines whether the card 1 is currently in a link state, if yes, step 908 is executed, and if not, the terminal may use the prior art to normally perform communication of the card 2 by using the RF path.

Step 908, the terminal determines whether the frequency band of the two cards currently operating is the CA combination again, if so, step 909 is executed, and if not, the terminal may adopt the prior art, for example, perform processing in a voice-first manner. For example: the terminal supports the CA combination of B1+ B3+ B5, and the CA combination is satisfied when the card 1 operates at B1, B3, B1+ B3, B1+ B5, B3+ B5, B1+ B3+ B5, and the card 2 operates at B5.

In step 909, the terminal determines whether the card 1 operates in the downlink CA, that is, the terminal determines whether the frequency band in which the card 1 operates is a CA combination, if so, step 910 is executed, and if not, step 911 is executed. For example: when the card 1 works at B1+ B3, or B1+ B5, or B3+ B5, or B1+ B3+ B5, it is determined that the card 1 works at the downstream CA.

Step 910, the terminal releases the downlink frequency band to be used by the card 2, and maintains the card 1 to operate in another frequency band, and then executes step 911. For example: if it is determined in step 909 that card 1 is operating at B1+ B5, then B5 may be released so that card 1 operates at B1.

Step 911, the card 2 communicates with the network side using the CA channel. The terminal performs communication between the card 2 and the network side while performing communication with the card 1 using the CA channel, so that both the card 1 and the card 2 can support diversity.

Further, when the card 1 and the card 2 work together using the CA channel, if the card 2 is paging, the antenna may be adjusted to use the antenna with good signal for the paging channel. Since generally the priority of paging is higher.

With the scheme of the embodiment, when the terminal is in the dual-card mode and the two cards work in the CA combination, the CA combination can be used to listen to the paging of the secondary card, and the throughput of the primary card is not interrupted during the listening. The communications, operating frequency bands, etc. described in the embodiment of fig. 9 are all referred to as being in downlink communications.

Fig. 10 is a flowchart of another network communication method according to an embodiment of the present invention. Based on the embodiment shown in fig. 8, fig. 10 shows a specific scheme of uplink communication. Take the first band as B1 or B3 and the second band as B5 as an example. As shown in fig. 10, the method includes:

step 1001, the terminal is in a dual card standby mode. The terminal is equipped with two cards, card 1 and card 2, corresponding to the first SIM card and the second SIM card in the above embodiments, respectively.

Step 1002, the terminal acquires the uplink working frequency bands of the card 1 and the card 2.

Step 1003, the terminal determines whether the working frequency band of the card 1 and the working frequency band of the card 2 are the CA combination, if not, step 1004 is executed, and if yes, step 1006 is executed.

Step 1004, the terminal detects the neighbor cell information of the card 1 and the card 2, judges whether the uplink frequency band meeting the CA combination can be resided, if yes, executes step 1005; if not, it indicates that there is no frequency band supporting the CA combination currently, the terminal may adopt the prior art without performing the steps below the scheme, or the terminal may continue to perform step 1006, and in step 1008, it is determined again whether there is a frequency band satisfying the CA combination.

Step 1005, the terminal changes the uplink working frequency band of the card 1 or the card 2, so that the card 1 and the card 2 work in the frequency band meeting the CA respectively.

Step 1006, the terminal detects that a card, such as card 2, needs to use RF transmission resources, then step 1007 is executed.

Step 1007, the terminal determines whether the card 1 is currently in the link state, if yes, step 1008 is executed, and if not, the terminal may use the prior art to normally perform the communication of the card 2 by using the RF path.

Step 1008, the terminal determines again whether the uplink frequency band where the two cards currently work is the CA combination, if so, step 1009 is executed, and if not, the terminal may adopt the prior art, for example, process in a voice-first manner. For example: the terminal supports the CA combination of B1+ B3+ B5, and the CA combination is satisfied when the card 1 operates at B1, B3, B1+ B3, B1+ B5, B3+ B5, B1+ B3+ B5, and the card 2 operates at B5.

Step 1009, the terminal determines whether the card 1 operates in the uplink CA, that is, the terminal determines whether the frequency band in which the card 1 operates is a CA combination, if so, step 1010 is executed, and if not, step 1011 is executed. For example: when card 1 is operating at B1+ B3 or B1+ B5 or B3+ B5 or B1+ B3+ B5, it is determined that card 1 is operating at the upstream CA.

Step 1010, the terminal releases the uplink frequency band to be used by the card 2, and maintains the card 1 to operate in another frequency band, and then step 1011 is executed. For example: in step 1009, it is determined that card 1 is operating at B1+ B5, then B5 may be released so that card 1 operates at B1.

And step 1011, the terminal realizes the uplink concurrence of the card 1 and the card 2 by using the CA channel. The terminal performs card 1 uplink communication and card 2 uplink communication with the network side using the CA channel.

According to the embodiments shown in fig. 8-10, the dual-card terminal may implement the upstream concurrency and the downstream concurrency of two cards by using the CA channel.

The embodiments shown in fig. 8-10 are illustrated with the first frequency band being B1/B3 and the second frequency band being B5. However, the embodiment of the present invention does not limit the specific types of the first frequency band and the second frequency band, nor the specific types of the two SIM cards. As long as the first frequency band and the second frequency band satisfy the CA combination, and the first frequency band and the second frequency band can be used by the first SIM card and the second SIM card, respectively, the scheme that can use the embodiment of the present invention is that the two SIM cards operate in parallel.

Whether the terminal supports CA and the type of CA combination supported may be determined by the radio frequency circuit and the baseband chip of the terminal. A terminal may support CA if its baseband chip has CA capability, i.e., if the baseband chip is capable of handling CA. The structure of the radio frequency circuit of the terminal may determine which frequency bands are supported for CA, i.e., may determine a specific CA combination. By changing the structure of the radio frequency circuit, the combination of carrier aggregation supported by the terminal can be changed. Fig. 11-13 are schematic diagrams of several rf circuits for illustrating the hardware structure of different CA combinations.

Fig. 11 is a schematic diagram of a radio frequency circuit of a terminal according to an embodiment of the present invention. As shown in fig. 11, the terminal including the radio frequency circuit supports downlink CA of LTE B1+ B3+ B5, and supports uplink CA of LTE B1+ B5 or uplink CA of B3+ B5; that is, in the downlink, the three frequency bands B1, B3, and B5 may be subjected to carrier aggregation to transmit data together, in the uplink, B1 and B5 may transmit data together, or B3 and B5 may transmit uplink data together, but the three bands B1, B3, and B5 cannot adopt carrier aggregation to transmit uplink data simultaneously.

As shown in fig. 11, the radio frequency circuit includes: a radio frequency chip (RFIC)110, uplink Power Amplifiers (PA)111,112, a quadrupler 113, a duplexer 114, radio frequency switches 115,116, high and low frequency combiners 117,118, filters 119,120, a main antenna collector 121 and a diversity antenna 122. The upstream PA111 selects one of B1 and B3 for output. The quadplexer 113 is used to combine and output multiple signals, or divide one signal into multiple signals. The rf switches 115,116 are used to select the path to communicate with the antenna terminal, and may be, for example, an antenna selection module. High and low frequency combiners 117,118, which may be, for example, diplexers, are used to combine the high and low frequency signals. The upstream PA111 supports B1 or B3, but does not support B1+ B3, whereby in operation, the two paths B1 TX (upstream) and B3 TX cannot communicate simultaneously. The upstream PA 112 supports the CDMA/B5 band, where CDMA BC0 is the same as B5, and here is shown as the B5 band or the BC0 band. The radio frequency circuit further comprises a Primary Receive (PRX) B1, a Primary Receive (PRX) B3 PRX, a primary receive (DRX) B5 PRX, a secondary receive (DRX) B1, a secondary receive (DRX) B3 and a secondary 5 DRX.

Fig. 12 is a schematic diagram of another rf circuit of the terminal according to the embodiment of the present invention. As shown in fig. 12, the terminal including the radio frequency circuit supports downlink CA of LTE B1+ B5, and supports uplink CA of LTE B1+ B5 or uplink CA of B3+ B5. Fig. 12 lacks downlink B3 PRX and B3 DRX compared to fig. 11.

Fig. 13 is a schematic diagram of another rf circuit of the terminal according to the embodiment of the present invention. As shown in fig. 13, the terminal including the radio frequency circuit supports downlink CA of LTE B1+ B3+ B5, and supports uplink CA of LTE B1+ B3+ B5. Compared to fig. 11, the uplink PA111 in fig. 11 is replaced with an uplink PA 1111 and an uplink PA 1112. Among them, PA 1111 supports upstream B1, PA1112 supports upstream B3, and thus the terminal supports two paths of B1 TX and B3 TX at the same time.

From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Further, any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, a server, or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a Digital Subscriber Line (DSL), or a wireless technology such as infrared, radio, and microwave, the coaxial cable, the fiber optic cable, the twisted pair, the DSL, or the wireless technology such as infrared, radio, and microwave are included in the fixation of the medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A network communication method applied to a terminal, the terminal including a radio frequency circuit, wherein the terminal supports a first mobile communication network and a second mobile communication network, the first mobile communication network supports at least a first frequency band and a second frequency band, and the second mobile communication network supports at least the second frequency band, the method comprising:

the terminal judges whether the first frequency band and the second frequency band meet carrier aggregation;

when the first frequency band and the second frequency band meet carrier aggregation, the terminal searches the first mobile communication network by using the first frequency band and searches the second mobile communication network by using the second frequency band in a carrier aggregation mode; after the searching, communicating with the first mobile communication network by using the first frequency band, and communicating with the second mobile communication network by using the second frequency band;

alternatively, the first and second electrodes may be,

when the first frequency band and the second frequency band meet carrier aggregation, the terminal acquires a frequency band in which the first mobile communication network currently works;

when the first mobile communication network does not work in the second frequency band currently and the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate with the first mobile communication network in a carrier aggregation mode and uses the second frequency band to search the second mobile communication network; after the terminal is searched, the terminal communicates with the second mobile communication network by using the second frequency band; alternatively, the first and second electrodes may be,

when the first mobile communication network currently operates in the first frequency band and the second frequency band in a carrier aggregation manner, the first frequency band is a main carrier, and the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate with the first mobile communication network in a carrier aggregation manner, and uses the second frequency band to search the second mobile communication network; after the terminal is searched, the terminal communicates with the second mobile communication network by using the second frequency band;

alternatively, the first and second electrodes may be,

when the first frequency band and the second frequency band meet carrier aggregation, the terminal acquires a frequency band required by the first mobile communication network to be searched; when the frequency band required by searching the first mobile communication network is the first frequency band and the second frequency band meet carrier aggregation, the terminal searches the first mobile communication network by using the first frequency band and communicates with the second mobile communication network by using the second frequency band in a carrier aggregation mode;

wherein the terminal uses the radio frequency circuit to perform the communication with the first mobile communication network and the second mobile communication network; the radio frequency circuit comprises a radio frequency chip, a first radio frequency channel and a second radio frequency channel; the radio frequency chip is connected with the first radio frequency channel and the second radio frequency channel; the first radio frequency channel and the radio frequency chip are used for uplink communication and/or downlink communication of the first frequency band; the second radio frequency channel and the radio frequency chip are used for uplink communication and/or downlink communication of the second frequency band.

2. The method of claim 1, wherein communicating with the first mobile communication network using the first frequency band and communicating with the second mobile communication network using the second frequency band comprises:

acquiring a current working frequency band of the first mobile communication network;

when the first mobile communication network does not work in the second frequency band currently and the first frequency band and the second frequency band meet carrier aggregation, the first frequency band is used for communicating with the first mobile communication network, and the second frequency band is used for communicating with the second mobile communication network; alternatively, the first and second electrodes may be,

when the first mobile communication network currently operates in the first frequency band and the second frequency band in a carrier aggregation manner, the first frequency band is a main carrier, and the first frequency band and the second frequency band meet carrier aggregation, the first frequency band is used for communicating with the first mobile communication network, and the second frequency band is used for communicating with the second mobile communication network.

3. The method of claim 1 or 2, wherein communicating with the second mobile communication network using the second frequency band comprises: performing paging listening of the second mobile communication network using the second frequency band; or, receiving information sent by the second mobile communication network by using the second frequency band.

4. The method of claim 1 or 2, wherein prior to communicating with the first mobile communication network using the first frequency band and communicating with the second mobile communication network using the second frequency band, the method further comprises: the terminal detects a request for communication with the second mobile communication network while the terminal is communicating with the first mobile communication network.

5. The method of claim 3, wherein prior to communicating with the first mobile communication network using the first frequency band and communicating with the second mobile communication network using the second frequency band, the method further comprises: the terminal detects a request for communication with the second mobile communication network while the terminal is communicating with the first mobile communication network.

6. The method of claim 4, wherein prior to communicating with the first mobile communication network using the first frequency band and communicating with the second mobile communication network using the second frequency band, the method further comprises: the terminal detects a request for communication with the second mobile communication network while the terminal is communicating with the first mobile communication network.

7. A network communication method, applied to a terminal, the terminal including a radio frequency circuit, the terminal being equipped with a first SIM card and a second SIM card, wherein the first SIM card supports a first mobile communication network, the second SIM card supports a second mobile communication network, the first mobile communication network supports at least a first frequency band and a second frequency band, and the second mobile communication network supports at least the second frequency band, the method comprising:

when the first frequency band and the second frequency band meet carrier aggregation, the terminal uses the first frequency band to communicate the first SIM card with the first mobile communication network and uses the second frequency band to communicate the second SIM card with the second mobile communication network in a carrier aggregation mode;

when the first frequency band and the second frequency band satisfy carrier aggregation, the terminal performs, in a carrier aggregation manner, communication between the first SIM card and the first mobile communication network using the first frequency band, and performs communication between the second SIM card and the second mobile communication network using the second frequency band, where the method includes:

the terminal acquires the current working frequency band of the first SIM card;

when the first SIM card does not currently operate in the second frequency band, and the first frequency band and the second frequency band satisfy carrier aggregation, the terminal uses the first frequency band to perform communication between the first SIM card and the first mobile communication network, and uses the second frequency band to perform communication between the second SIM card and the second mobile communication network in a carrier aggregation manner; alternatively, the first and second electrodes may be,

when the first SIM card currently operates in the first frequency band and the second frequency band in a carrier aggregation manner, and the first frequency band and the second frequency band satisfy carrier aggregation, the terminal performs, in a carrier aggregation manner, communication between the first SIM card and the first mobile communication network by using the first frequency band, and performs communication between the second SIM card and the second mobile communication network by using the second frequency band;

wherein the first SIM card and the second SIM card perform the communication with the first mobile communication network and the second mobile communication network, respectively, using the radio frequency circuit; the radio frequency circuit comprises a radio frequency chip, a first radio frequency channel and a second radio frequency channel; the radio frequency chip is connected with the first radio frequency channel and the second radio frequency channel; the first radio frequency channel and the radio frequency chip are used for uplink communication and/or downlink communication of the first frequency band; the second radio frequency channel and the radio frequency chip are used for uplink communication and/or downlink communication of the second frequency band.

8. The method according to claim 7, wherein before the terminal performs communication between the first SIM card and the first mobile communication network using the first frequency band and performs communication between the second SIM card and the second mobile communication network using the second frequency band by means of carrier aggregation, the method further comprises:

when the first SIM card communicates with the first mobile communication network, the terminal detects a communication request of the second SIM card; alternatively, the first and second electrodes may be,

and when the second SIM card is communicated with the second mobile communication network, the terminal detects the communication request of the first SIM card.

9. The method according to claim 7 or 8, characterized in that:

the communication between the first SIM card and the first mobile communication network is downlink communication, and the communication between the second SIM card and the second mobile communication network is downlink communication; alternatively, the first and second electrodes may be,

the communication between the first SIM card and the first mobile communication network is uplink communication, and the communication between the second SIM card and the second mobile communication network is uplink communication.

10. A terminal, wherein the terminal supports a first mobile communication network and a second mobile communication network, wherein the first mobile communication network supports at least a first frequency band and a second frequency band, and wherein the second mobile communication network supports at least the second frequency band, the terminal comprising:

a radio frequency circuit for transceiving signals;

a memory;

one or more processors;

and one or more computer programs, wherein the one or more computer programs are stored on the memory, which when executed by the one or more processors, cause the terminal to perform the steps of:

alternatively, the first and second electrodes may be,

11. The terminal of claim 10, wherein communicating with the first mobile communication network using the first frequency band and communicating with the second mobile communication network using the second frequency band comprises:

12. The terminal according to claim 10 or 11, wherein the communication with the second mobile communication network using the second frequency band comprises: performing paging listening of the second mobile communication network using the second frequency band; or, receiving information sent by the second mobile communication network by using the second frequency band.

13. A terminal according to claim 10 or 11, wherein before communicating with the first mobile communications network using the first frequency band and communicating with the second mobile communications network using the second frequency band, the terminal further performs: the terminal detects a request for communication with the second mobile communication network while the terminal is communicating with the first mobile communication network.

14. The terminal of claim 12, wherein before communicating with the first mobile communication network using the first frequency band and communicating with the second mobile communication network using the second frequency band, the terminal further performs: the terminal detects a request for communication with the second mobile communication network while the terminal is communicating with the first mobile communication network.

15. The terminal of claim 13, wherein before communicating with the first mobile communication network using the first frequency band and communicating with the second mobile communication network using the second frequency band, the terminal further performs: the terminal detects a request for communication with the second mobile communication network while the terminal is communicating with the first mobile communication network.

16. A terminal, wherein the terminal is equipped with a first SIM card and a second SIM card, the first SIM card supporting a first mobile communication network, the second SIM card supporting a second mobile communication network, the first mobile communication network supporting at least a first frequency band and a second frequency band, the second mobile communication network supporting at least the second frequency band, the terminal comprising:

a radio frequency circuit for transceiving signals;

a memory;

one or more processors;

the terminal acquires the current working frequency band of the first SIM card;

17. The terminal according to claim 16, wherein the terminal performs communication between the first SIM card and the first mobile communication network using the first frequency band and performs communication between the second SIM card and the second mobile communication network using the second frequency band by means of carrier aggregation, and further performs:

when the first SIM card communicates with the first mobile communication network, the terminal detects a communication request of the second SIM card; or, when the second SIM card communicates with the second mobile communication network, the terminal detects a communication request of the first SIM card.

18. The terminal according to claim 16 or 17, characterized in that the terminal further performs: the communication between the first SIM card and the first mobile communication network is downlink communication, and the communication between the second SIM card and the second mobile communication network is downlink communication; or, the communication between the first SIM card and the first mobile communication network is uplink communication, and the communication between the second SIM card and the second mobile communication network is uplink communication.