WO2017128649A1

WO2017128649A1 - Terminal, communication method, and storage medium

Info

Publication number: WO2017128649A1
Application number: PCT/CN2016/090690
Authority: WO
Inventors: 何坚; 薛晓君; 罗祖栋; 王朝
Original assignee: 努比亚技术有限公司
Priority date: 2016-01-27
Filing date: 2016-07-20
Publication date: 2017-08-03
Also published as: CN105792184B; WO2017128643A1; CN105682081A; CN105764124B; CN105764124A; CN105792184A; CN105592439B; CN105592439A; WO2017128650A1

Abstract

Disclosed in the present invention are a terminal, a communication method, and a storage medium. A first subscriber identity module card and a second subscriber identity module card in the terminal are both connected to a first processing unit, and the first processing unit is connected to a second processing unit. The first processing unit is configured to obtain information about the first processing unit and information about the second processing unit; and the first processing unit is also configured to send the obtained information about the second subscriber identity module card to the second processing unit. The first processing unit is configured to communicate with a first 4G network according to the obtained information about the first subscriber identity module card, and carry out a data service. The second processing unit is configured to communicate with a second 4G network according to the received information about the second subscriber identity module card, and carry out a data service.

Description

Terminal, communication method, and storage medium

Technical field

The present invention relates to the field of communications technologies, and in particular, to a terminal, a communication method, and a storage medium.

Background technique

With the development of mobile communication technologies, advanced cellular networks (for example, networks based on the LTE standard (Long Term Evolution, a standard used by some "4G" networks) are being deployed worldwide. Due to the introduction of key technologies such as OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multi-Input & Multi-Output), 4G correlation standards can significantly increase spectral efficiency and data transmission rate.

On the other hand, while increasing the network rate and frequency band utilization, the appearance of a multimode terminal (a terminal with two subscriber identification cards, for example, a dual-card dual-pass terminal) enables the user to implement the voice service standby while Establish a data service link.

However, existing multimode terminals can only implement 4G for one subscriber identity card, for example, Long Term Evolution (LTE) network and its data services, while another subscriber identity card can only use 3rd generation (3G)/2nd generation. (2G) business.

Therefore, the existing terminal cannot simultaneously support two user identification cards to reside on the 4G network, which affects the user experience.

Summary of the invention

A technical problem to be solved by the embodiments of the present invention is to provide a terminal, a communication method, and a storage medium for the above-mentioned drawbacks of the prior art.

The technical solution adopted by the embodiment of the present invention to solve the technical problem thereof is:

In a first aspect, an embodiment of the present invention provides a terminal, including:

a first user identification card, a second user identification card, a first processing unit, and a second processing unit;

The first user identification card and the second user identification card are both connected to the first processing unit, and the first processing unit is connected to the second processing unit;

The first processing unit is configured to acquire information of the first user identification card and the second user identification card;

The first processing unit is further configured to send the acquired information of the second user identification card to the second processing unit;

The first processing unit is configured to communicate with the first 4G network based on the acquired information of the first user identification card, and perform data service based on the first 4G network;

The second processing unit is configured to communicate with the second 4G network based on the received information of the second user identification card, and perform data service based on the second 4G network.

In the above solution, the first processing unit is further configured to perform voice service over the 2G and/or 3G network by communicating with the 2G and/or 3G network based on the acquired information of the second subscriber identity card.

In the above solution, the first processing unit is further configured to perform voice service over the 2G and/or 3G network by communicating with the 2G and/or 3G network based on the acquired information of the first subscriber identity card.

In the above solution, the first processing unit is further configured to: when the network is registered, load the corresponding network parameter according to the information of the first user identification card, start a search network registration, and pass the first user identification card The first processing unit resides in the first 4G network.

In the above solution, the first processing unit is further configured to: when the network is registered, load the corresponding network parameter according to the information of the second user identification card, perform a network registration, and pass the second user identification card. The first processing unit resides on a 2G or 3G network.

In the above solution, the second processing unit is further configured to perform a network registration based on the acquired information of the second user identification card, and the second user identification card resides in the second 4G by using the second processing unit. The internet.

In the above solution, the first processing unit includes a first data interface, and the second processing unit includes a second data interface that is connected to the first data interface of the first processing unit;

The second processing unit acquires information of the second user identification card from the first processing unit by using the second data interface and the first data interface.

In the above solution, the second processing unit is further configured to send a synchronization frame to the first processing unit when the preset condition is met;

The first processing unit is further configured to: after receiving the synchronization frame sent by the second processing unit, establish a connection with the second processing unit by replying to the confirmation frame;

The first processing unit is further configured to register a preset service manner, and acquire information about the first user identification card and/or the second user identification card;

The second processing unit is further configured to perform service discovery and interact with the first processing unit to perform information of the second user identification card by registering a client corresponding to the preset service.

In the above solution, the second processing unit is further configured to perform the information interaction of the user identification card, and the data packet format includes at least one of the following fields: a flag bit, a length, a control flag, a port number, a service serial number ID, a customer ID, Data ID, control bits, message ID, data length, and data.

In the above solution, the first processing unit is further configured to configure a first logical port corresponding to the preset service, and configure a second logical port corresponding to the physical interface of the first processing unit;

The first processing unit is further configured to transmit information of the second subscriber identity card to the second logic port by using the second logical port and the first logical port, by using the first processing unit The physical interface is transmitted to the second processing unit.

In the above solution, the second processing unit is further configured to configure a third logical port corresponding to the client, and configure a fourth logic corresponding to the physical interface of the second processing unit. Port

The second processing unit is further configured to transmit information of the second subscriber identity card received through a physical interface of the second processing unit to the third logical port through the fourth logical port, Transmitting to the client via the third logical port.

In the above solution, the terminal further includes:

The first application service processor is coupled to the first processing unit, configured to provide an interaction interface, receive an operation instruction of the user, and transmit the operation instruction to the first processing unit.

In the above solution, the terminal further includes:

a second application service processor, which is respectively connected to the second processing unit and the first application service processor, configured to receive information sent by the first application service processor, and transparently transmit the information to the second processing unit.

In a second aspect, an embodiment of the present invention provides a communication method, including:

The first processing unit acquires information of the first user identification card and the second user identification card;

The first processing unit sends the acquired information of the second user identification card to the second processing unit;

The first processing unit communicates with the first 4G network based on the acquired information of the first user identification card, and performs data service based on the first 4G network;

The second processing unit communicates with the second 4G network based on the received information of the second user identification card, and performs data service based on the second 4G network.

In the above solution, the method further includes:

The first processing unit communicates with the 2G and/or 3G network based on the acquired information of the second subscriber identity card, and performs voice service over the 2G and/or 3G network.

In the above solution, the method further includes:

The first processing unit communicates with the 2G and/or 3G network based on the acquired information of the first subscriber identity card, and performs voice service over the 2G and/or 3G network.

In the above solution, the first processing unit sends the acquired information of the second user identification card to the second processing unit, including:

When the preset condition is met, the second processing unit sends a synchronization frame to the first processing unit;

After receiving the synchronization frame sent by the second processing unit, the first processing unit establishes a connection with the second processing unit by replying to the confirmation frame.

The first processing unit registers a preset service to obtain information of the first user identification card and/or the second user identification card;

The second processing unit performs service discovery and performs interaction of the information of the second user identification card with the first processing unit by registering a client corresponding to the preset service.

In the above solution, the second processing unit performs the service discovery, and performs the interaction of the information of the second user identification card with the first processing unit by registering the client corresponding to the preset service, including:

The first processing unit configures a first logical port corresponding to the preset service, and configures a second logical port corresponding to a physical interface of the first processing unit;

Transmitting, by the first processing unit, the information of the second user identification card to the second logical port by using the first logical port, and transmitting the information to the second processing unit by using a physical interface of the first processing unit .

The second processing unit configures a third logical port corresponding to the client, and configures a fourth logical port corresponding to the physical interface of the second processing unit;

The second processing unit transmits the information of the second subscriber identity card received by the physical interface of the second processing unit to the third logical port by using the fourth logical port, Transmitting to the client via the third logical port.

In a third aspect, an embodiment of the present invention provides a storage medium, where the executable medium is stored with an executable instruction, where the executable instruction is used to execute the communication method provided by the embodiment of the present invention.

The terminal, the communication method and the storage medium embodying the invention have the following beneficial effects: through the interaction between the first processing unit and the second processing unit, the two user identification cards are supported to reside on the 4G network, and two 4Gs can be utilized. The channel performs concurrent transmission of data services to improve transmission efficiency. In addition, when data services are transmitted, voice services can be transmitted to improve user experience. On the other hand, two user identification cards are managed by the first processing unit. Improve management efficiency. And the C/S communication architecture is adopted between the first processing unit and the second processing unit to implement sharing of information. Therefore, the first processing unit can share the acquired information to the second processing unit by using the data interface, and the second processing unit can obtain the information in real time without using the shared memory, thereby saving cost. And because the different ports for different service registrations are transmitted correspondingly, it is supported to extend multiple transport layer protocols and physical layer protocols.

DRAWINGS

1 is a schematic structural diagram of hardware of an optional mobile terminal embodying various embodiments of the present invention;

2 is a schematic diagram of a wireless communication system of the mobile terminal shown in FIG. 1;

3 is a schematic structural diagram of a terminal hardware according to an embodiment of the present invention;

4 is a schematic structural diagram of a terminal hardware according to another embodiment of the present invention;

5 is a schematic diagram of interaction between a first processing unit and a second processing unit of a dual-core communication device according to an embodiment of the present invention;

6 is a schematic diagram of a format of a physical layer data packet according to an embodiment of the present invention;

FIG. 7 is a flow chart of a communication method according to an embodiment of the present invention.

detailed description

For a better understanding of the technical features, objects and effects of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings.

A terminal embodying various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, the use of suffixes such as "module", "component" or "unit" for indicating an element is merely an explanation for facilitating the present invention, and does not have a specific meaning per se. Therefore, "module" and "component" can be used in combination.

Taking the terminal as a mobile terminal as an example, the mobile terminal can be implemented in various forms. For example, the terminals described in the present invention may include, for example, mobile phones, smart phones, notebook computers, digital broadcast receivers, personal digital assistants (PDAs), tablet computers (PADs), portable multimedia players (PMPs), navigation devices, and the like. Mobile terminals and fixed terminals such as digital TVs, desktop computers, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes.

1 is a schematic diagram showing the hardware configuration of a mobile terminal 100 that implements various embodiments of the present invention. As shown in FIG. 1, the mobile terminal 100 may include a wireless communication unit 10, a memory 60, a controller 80, a power supply unit 90, and the like. FIG. 1 illustrates a mobile terminal 100 having various components, but it should be understood that not all illustrated components are required to be implemented. More or fewer components can be implemented instead. The elements of the mobile terminal 100 will be described in detail below.

Wireless communication unit 10 typically includes one or more components that permit radio communication between mobile terminal 100 and a wireless communication system or network. For example, the wireless communication unit 10 can include a mobile communication module 12.

The mobile communication module 12 transmits radio signals to and/or receives radio signals from at least one of a base station (e.g., an access point, a Node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or based on text and/or more Various types of data that are sent and/or received by media messages.

Output unit 50 is configured to provide an output signal (eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.) in a visual, audio, and/or tactile manner. The output unit 50 may include a display unit 51.

The display unit 51 can display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in a phone call mode, the display unit 51 can display a user interface (UI) or a graphical user interface (GUI) associated with a call or other communication (eg, text messaging, multimedia file download, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 51 may display a captured image and/or a received image, a UI or GUI showing a video or image and related functions, and the like.

Meanwhile, when the display unit 51 and the touch panel are superposed on each other in the form of a layer to form a touch screen, the display unit 51 can function as an input device and an output device. The display unit 51 may include at least one of a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), an organic light emitting diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as a transparent display, and a typical transparent display may be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like. According to a particular desired embodiment, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal 100 may include an external display unit (not shown) and an internal display unit (not shown) ). The touch screen can be used to detect touch input pressure as well as touch input position and touch input area.

The memory 60 may store a software program or the like for processing and control operations performed by the controller 80, or may temporarily store data (for example, a phone book, a message, a still image, a video, etc.) that has been output or is to be output. Moreover, the memory 60 can store data regarding various manners of vibration and audio signals that are output when a touch is applied to the touch screen.

The memory 60 may include at least one type of storage medium including a flash memory, Hard disk, multimedia card, card type memory (eg, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), Programmable Read Only Memory (PROM), magnetic memory, magnetic disk, optical disk, and the like. Moreover, the mobile terminal 100 can cooperate with a network storage device that performs a storage function of the memory 60 through a network connection.

The controller 80 typically controls the overall operation of the mobile terminal 100. For example, controller 80 performs the control and processing associated with voice calls, data communications, video calls, and the like. Additionally, controller 80 may include a multimedia module for rendering or playing back multimedia data, which may be constructed within controller 80 or may be configured to be separate from controller 80. The controller 80 can perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The power supply unit 90 receives external power or internal power under the control of the controller 80 and provides appropriate power required to operate the various components and components.

The various embodiments described herein can be implemented in a computer readable medium using, for example, computer software, hardware, or any combination thereof. For hardware implementations, the embodiments described herein may be through the use of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( An FPGA, processor, controller, microcontroller, microprocessor, at least one of the electronic units designed to perform the functions described herein is implemented, in some cases such an embodiment may be at controller 80 Implemented in the middle. For software implementations, implementations such as procedures or functions may be implemented with separate software modules that permit the execution of at least one function or operation. The software code can be implemented by a software application (or program) written in any suitable programming language, which can be stored in memory 60 and executed by controller 80.

So far, the mobile terminal 100 has been described in terms of its function. Hereinafter, for the sake of brevity, various types such as a folding type, a bar type, a swing type, a slide type mobile terminal 100, and the like will be described. The slide type mobile terminal 100 in the mobile terminal 100 is taken as an example. Therefore, the present invention can be applied to any type of mobile terminal 100, and is not limited to the slide type mobile terminal 100.

The mobile terminal 100 as shown in FIG. 1 may be configured to operate using a communication system such as a wired and wireless communication system and a satellite-based communication system that transmits data via frames or packets.

A communication system in which the mobile terminal 100 according to the present invention can operate will now be described with reference to FIG.

Such communication systems may use different air interfaces and/or physical layers. For example, air interfaces used by communication systems include, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE)). ), Global System for Mobile Communications (GSM), etc. As a non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to FIG. 2, a CDMA wireless communication system can include a plurality of mobile terminals 100, a plurality of base stations (BS) 270, a base station controller (BSC) 275, and a mobile switching center (MSC) 280. The MSC 280 is configured to interface with a public switched telephone network (PSTN) 290. The MSC 280 is also configured to interface with a BSC 275 that can be coupled to the base station 270 via a backhaul line. The backhaul line can be constructed in accordance with any of a number of well known interfaces including, for example, E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. It will be appreciated that the system as shown in FIG. 2 can include multiple BSCs 275.

Each BS 270 can serve one or more partitions (or regions), with each partition covered by a multi-directional antenna or an antenna pointing in a particular direction radially away from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS 270 can be configured to support multiple frequency allocations, and each frequency allocation has a particular frequency spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of partitioning and frequency allocation can be referred to as a CDMA channel. BS 270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such cases, the term "base A station may be used to generally represent a single BSC 275 and at least one BS 270. A base station may also be referred to as a "cell station." Alternatively, each partition of a particular BS 270 may be referred to as a plurality of cellular stations.

As shown in FIG. 2, a broadcast transmitter (BT) 295 transmits a broadcast signal to the mobile terminal 100 operating within the system. The broadcast receiving module is disposed at the mobile terminal 100 as shown in FIG. 1 to receive a broadcast signal transmitted by the BT 295. In Figure 2, several satellites 300 are shown, for example, a Global Positioning System (GPS) satellite 300 can be employed. The satellite 300 helps locate at least one of the plurality of mobile terminals 100.

In Figure 2, a plurality of satellites 300 are depicted, but it is understood that useful positioning information can be obtained using any number of satellites. The GPS module is located at the mobile terminal 100 as shown in Figure 1, and is typically configured to cooperate with the satellite 300 to obtain the desired positioning information. Instead of GPS tracking techniques or in addition to GPS tracking techniques, other techniques that can track the location of the mobile terminal 100 can be used. Additionally, at least one GPS satellite 300 can selectively or additionally process satellite DMB transmissions.

As a typical operation of a wireless communication system, BS 270 receives reverse link signals from various mobile terminals 100. Mobile terminal 100 typically participates in calls, messaging, and other types of communications. Each reverse link signal received by a particular BS 270 is processed within a particular BS 270. The obtained data is forwarded to the relevant BSC 275. The BSC 275 provides call resource allocation and coordinated mobility management functions including a soft handoff procedure between the BSs 270. The BSC 275 also routes the received data to the MSC 280, which provides additional routing services for interfacing with the PSTN 290. Similarly, PSTN 290 interfaces with MSC 280, MSC 280 interfaces with BSC 275, and BSC 275 controls BS 270 accordingly to transmit forward link signals to mobile terminal 100.

Example 1

Referring to FIG. 3, the embodiment of the present invention uses the architecture of the “first processing unit+second processing unit” to implement that the terminal 100 supports two user identification cards to reside on the 4G network.

The first user identification card 110 and the second user identification card 120 can manage different users associated with different or the same technical standards. In a specific, non-limiting example, the technical standard may be a 2G communication technology, for example, Global System for Mobile Communication (GSM), General Packet Radio Service (GPRS), enhanced data rate. GSM (Enhanced Data Rate for GSM Evolution), 3G communication technology, for example, Wideband Code Division Multiple Access (WCDMA), Time Division Synchronous Code Division Multiple Access (TDS-CDMA, Time Division-Synchronous Code) Division Multiple Access), 4G communication technology, for example, Long Term Evolution (LTE), Time Division Long Term Evolution (TD-LTE), or any other mobile communication technology such as 5G, 4.5G, etc. .

In one embodiment, the first subscriber identity card 110 maintains information configured for the first 4G network communication. The second subscriber identity card 120 holds information configured for the second 4G network communication. Specifically, the subscriber identity card may store one or more of the following information: ICCID (Integrate Circuit Card Identity), International Mobile Subscriber Identity (IMSI), security authentication and encryption information, and Temporary information related to the local network, a list of services accessed by the user, a personal identification number (PIN), and a personal unlocking code (PUK, PIN Unlocking Key) configured to unlock the PIN.

In an embodiment of the invention, the first processing unit 130 is configured to perform protocol processing and is configured to modulate and demodulate the transceived communication data to enable communication with an external communication device, and the like.

The second processing unit 140 is configured to complete protocol processing and is configured to modulate and demodulate the transceived communication data to enable communication with an external communication device or the like.

In an embodiment of the invention, the protocol processing includes performing a protocol stack that handles various network interfaces that interact with the network, for example, LTE/WCDMA/GSM/TDSCDMA/1X/CDMA/EVDO The protocol code specified in the communication standard. These standard protocols are that the terminal 100 interacts with the carrier network, for example, through data traffic, telephone over long term evolution (VOLTE), or through a circuit domain (CS).

The first processing unit 130 includes one or more data interfaces (to be distinguished from the data interface in the second processing unit 140, and also includes one or more data interfaces included in the first processing unit 130 as the first data interface), for example , general purpose input / output (I / O) interface, (UART, Universal Asynchronous Receiver / Transmitter) interface, universal serial bus (USB, Universal Serial Bus) interface, internal integrated circuit bus (I2C, I2C bus, Inter-IC bus ) interface and so on. The second processing unit 140 also includes one or more data interfaces (to be distinguished from the data interface in the first processing unit 130, and also to refer to one or more data interfaces included in the second processing unit 140 as a second data interface), For example, a general purpose I/O interface, a UART interface, a USB interface, an I2C interface, and the like.

Considering that the downlink rate of the 4G network is faster (150 Mbps), in order to enable the data of the second processing unit 140 to be received (without buffering), the high speed data interface requires sufficient bandwidth and data transmission capability. The USB interface is a high-speed data interface.

The general purpose I/O interface acts as a state detection interface and is identified by the level of high/low or pulse. For example, the first processing unit 130 can detect whether the second processing unit 140 is in a dead state by the level high/low state of the state detecting pin.

The UART interface is a serial communication interface configured to transmit basic information such as control signals and status signals.

The first processing unit 130 can be respectively connected to the first user identification card 110 and the second user identification card 120 through the UART interface to acquire card information from the first user identification card 110 and the second user identification card 120, and the card will be introduced in detail later. The process of information acquisition.

Additionally, the first processing unit 130 can be coupled to the second processing unit 140 via a UART interface to transmit card information to the second processing unit. The specific interaction process of the card information will be described in detail later. Shao. It should be understood that the transmission of the card information between the first processing unit 130 and the second processing unit 140 may also be performed through other interfaces, which is not limited by the present invention.

In one embodiment, the first processing unit 130 can be implemented by a modem chip, and the second processing unit 140 can be implemented by a modem chip.

In the embodiment of the present invention, the network data is transmitted at a high speed through the high-speed USB data interface to meet the data transmission requirement. When no network data needs to be transmitted, the low-speed data interface is used to transmit information, thereby ensuring data transmission and Save power.

After the first processing unit 130 obtains the information of the first user identification card 110 and the second identification card 120 through the data interface, the first processing unit 130 may perform operations such as network registration, authentication, and the like according to the acquired information.

Referring to FIG. 3, the first application service processor 150 and the second application service processor 160 may be connected through a GPIO interface and a USB interface, and may be an application processor (AP), for example, the controller shown in FIG. 80 implementation. It should be understood that the other interfaces may also be used, and the present invention does not limit this.

The first application service processor 150 is configured to process complex logical operations and perform task assignment, provide an interactive interface for the user, and transmit operation instructions input by the user (for example, an operation instruction input by the user through the user interface regarding surfing or calling). The first processing unit 130 or the second processing unit 140 is given. The first application service processor 150 processes an operating system that executes the mobile terminal 100. The operating system is stored in a memory, and the operating system includes but is not limited to Windows, Linux, Unix, Mac OS X, IOS, Solaris, Android, and the like.

In the embodiment of the present invention, the second application service processor 160 does not perform data processing, but only functions as a transparent transmission. For example, the data received by the second processing unit 140 is transparently transmitted to the first application service processor 150 for processing, and the data transmitted by the first application service processor 150 is transparently transmitted to the second processing unit 140.

The first radio frequency 170 and the second radio frequency 180 are configured to complete up-conversion, down-conversion, and filtering of the signal. Wave, amplification, transmission, reception, etc., can be implemented by a radio frequency transceiver. The radio access technologies involved in the first radio frequency 170 and the second radio frequency 180 may include LTE, 3G, GSM, GPRS, and the like.

When the terminal 100 performs data service transmission, it is divided into the following cases:

(1) Data service through the first user identification card

Upstream: the first application service processor 150 receives the user instruction, and controls the first processing unit 130 to process the uplink data according to the user instruction; the first radio frequency 170 transmits the uplink data processed by the first processing unit 130 to the first 4G network. .

Downstream: the first radio frequency 170 receives the downlink data from the first 4G network, and transmits the downlink data to the first processing unit 130 for processing. The first application service processor 150 performs the operations of outputting, storing, and the like the downlink data processed by the first processing unit 130. .

(2) Data service through the second user identification card

Upstream: the first application service processor 150 receives the user instruction, and controls the second application service processor 160 to transparently transmit the uplink data to the second processing unit 140 according to the user instruction; the second processing unit 140 processes the uplink data; The radio frequency 180 transmits the uplink data processed by the second processing unit 140 to the second 4G network.

Downstream: the second radio frequency 180 receives the downlink data from the second 4G network, and transmits the downlink data to the second processing unit 140. The second processing unit 140 transparently transmits the processed downlink data to the first through the second application service processor 160. The service processor 150 is applied, whereby operations such as output, storage, and the like can be performed.

(3) Data service is performed simultaneously through the first subscriber identity card and the second subscriber identity card

When data services are performed through the first subscriber identity card and the second subscriber identity card, the following two situations may be included:

First, different data services are transmitted through the first subscriber identity card and the second subscriber identity card, respectively. In this case, different data services are transmitted through the two data channels, which can greatly improve the transmission efficiency.

Second, the same data service is simultaneously transmitted by the first subscriber identity card and the second subscriber identity card. In this case, traffic distribution is required, that is, the same data service is divided into different data blocks and transmitted by two data channels. It should be understood that the method can be implemented according to the equalization, or adjusting the traffic of the two channels according to the link quality (rate, delay, etc.).

Referring to FIG. 4, in performing voice traffic, the digital signal processing chip 210 is configured to perform audio signal processing, for example, audio signal processing such as echo suppression, noise suppression, etc. during a call. A codec 220 is used for A/D and D/A conversion. The earpiece 230 is for outputting a sound signal. The microphone 240 is used to acquire a voice signal.

When the mobile terminal 100 performs voice service transmission, it is divided into the following cases:

(1) Voice service only through the first subscriber identity card

First, a voice communication connection is established: the first application service processor 150 transmits an operation instruction to the first processing unit 130, and sends a connection request and the like to the network through the first radio frequency 170 to establish a voice communication connection with the called party.

After the voice communication connection is established, the voice uplink transmission process is: the microphone 240 collects the voice signal, and the codec 220 receives the collected voice signal and performs analog-to-digital conversion and transmits the signal to the digital signal processing chip 210; the digital signal processing chip 210 receives the received signal. The signal is audio processed and transmitted to the first processing unit 130; the first radio frequency 170 transmits the signal processed by the first processing unit 130. The downlink downlink transmission process is: the first radio frequency 170 receives the downlink signal and transmits the downlink signal to the first processing unit 130; the digital signal processing chip 210 performs audio processing on the signal processed by the first processing unit 130 and transmits the signal to the codec 220; The decoder 220 performs analog-to-digital conversion on the received signal and transmits it to the earpiece 230.

It should be understood that if the mobile terminal 100 is acting as a called party, the process of establishing a voice communication connection is to receive a connection establishment request from the calling party to establish a voice communication connection with the calling party. Subsequent voice uplink transmission and downlink transmission processes are the same.

(2) Voice service only through the second subscriber identity card

(3) performing data service through the second user identification card while performing voice service through the first user identification card

In this case, the process of performing the voice service process by using the first subscriber identity card and the data service by using the second subscriber identity card is performed at the same time, and details are not described herein again.

(4) performing data service through the second user identification card while performing voice service through the second user identification card

In this case, the process of performing the voice service process by the second subscriber identity card 120 and the data service by the second subscriber identity card are performed at the same time, and details are not described herein again.

In the embodiment of the present invention, since the voice service and the data service of the second subscriber identity card 120 are registered via different processing units, the data service and the voice service can be simultaneously performed by the second subscriber identity card 120.

In some embodiments of the present invention, the first processing unit 130 is further configured to communicate with the 2G and/or 3G network based on the acquired information of the second subscriber identity card, perform voice service, and use the first user identification based on the acquisition. The card information communicates with the 2G and/or 3G networks for voice services. That is, when the voice service (CS voice service) is performed through the first subscriber identity card and the second subscriber identity card, it is performed through a 2G and/or 3G network. There are three cases. The first case is: the voice service is performed through the 2G network. When the network is registered, the first processing unit loads the network parameter corresponding to the first user identification card according to the information of the first user identification card, and starts the search for the network. The first subscriber identity card is caused to reside on the 2G network. The process for the second user identification card is the same.

The second case is: when the voice service is performed through the 3G network, when the network is registered, the first processing unit loads the network parameter corresponding to the first user identification card based on the information of the first user identification card, and starts the network registration, so that the first user identification card Residing on a 3G network. The process for the second user identification card is the same.

The third case: the voice service is preferentially transmitted through the 3G network, and the voice service is performed through the 2G network if the 3G network is abnormal.

It should be understood that in some embodiments, the voice services of the first subscriber identity card and the second subscriber identity card may also be VOLTE voice services, which may be performed over a 4G network. In other embodiments, the first subscriber identity card (or the second subscriber identity card) may also reside on the 4G network through the first processing unit, and when the first subscriber identity card (or the second subscriber identity card) In the case of voice service, it falls back to the 2G/3G network (for example, it falls back in CSFB mode).

In the embodiment of the present invention, in order to ensure normal communication between the first user identification card and the second user number identification card, the first processing unit 130 also performs timing on the first user identification card 110 and the second user identification card 120. Detection. specific:

The first processing unit 130 communicates with the first user identification card 110 and the second user identification card 120 every predetermined time (for example, 28 seconds) to confirm whether the user identification card is in place to ensure normal communication. For example, the first processing unit 130 sends a null data to the first user identification card 110 and the second user identification card 120 respectively, and if the response is received, confirms that the user identification card is in place, Then the subscriber identity card is not in place.

In the embodiment of the present invention, when the first application service processor 150 receives the operation instruction of the user, it is determined according to the operation instruction whether the data service or the language service is performed, and it is determined by which user identification card. It should be understood that the mobile terminal 100 of the embodiment of the present invention supports three cases of the foregoing data service and four cases of the voice service.

In the embodiment of the present invention, the mobile terminal 100 can use the data network of two user identification cards at the same time, and simultaneously download the data service to achieve the purpose of double data concurrent download acceleration. Therefore, the same user identification card needs to be processed first. Unit 130 and second processing unit 140 access. The access referred to herein is information for obtaining a subscriber identity card to enable first subscription and network communication through association with the first subscriber identity card 110, and through a second subscription and network associated with the second subscriber identity card 120. Communication.

Referring to FIG. 3, in the embodiment of the present invention, two user identification cards are connected to the first processing unit 130 in hardware configuration. In one embodiment, the first processing unit 130 can be connected to the first user identification card 110 and the second user identification card 120 through a data interface (eg, a UART), thereby identifying the first user identification card 110 and the second user. The card 120 performs information read and write operations.

The acquisition of the information of the user identification card by the second processing unit 140 needs to be acquired through interaction with the first processing unit 130. Specifically, in an embodiment of the present invention, the first processing unit 130 and the second processing unit 140 are connected through a data interface (for example, a UART data interface) to transmit information of the user identification card to the second processing unit 140. .

In order to realize the interaction of the card information between the first processing unit 130 and the second processing unit 140, the communication protocol between the first processing unit 130 and the second processing unit 140 is divided into a physical layer, a transport layer, and an application layer. The physical layer is used to transmit and receive data. The transport layer can extend multiple interfaces for different services corresponding to the application layer. The application layer is used to enable the service to perform the corresponding information acquisition function.

Specifically, referring to FIG. 5, first, the first processing unit 130 and the second processing unit 140 respectively Configure one or more ports. In an embodiment of the invention, the port is a virtual logical port, and the configuration port includes a port number for which to be set, and the like. According to the function division, the port includes two types. The first one is used for the port corresponding to the service registered by the application layer, and the information acquired by the application layer service is transmitted to the transport layer; the second is used for the physical interface with the physical layer. Corresponding ports transmit information to the corresponding physical interface to enable the transmission (or reception) of information.

Specifically, the first processing unit 130 registers a service to perform a corresponding function. In an embodiment of the invention, the service may be a preset service. For example, if the information of the acquisition card is used as the preset service, when the second processing unit 140 sends the synchronization frame to establish a connection with the first processing unit 130, the first processing unit 130 can register the preset. Service to perform the function of the preset service. In an embodiment of the invention, the preset service is information for acquiring a user identification card.

In the embodiment of the present invention, the functions of different services are different, for example, a service for acquiring card information can be registered. Other types of services, such as services for obtaining status information, control information, and the like, may also be registered in embodiments of the present invention. Each service corresponds to a port, that is, the information acquired by the service will be transmitted through the port corresponding to the service. The port here refers to the first port described above.

Therefore, in the embodiment of the present invention, since a plurality of ports (the first type of ports described above) are expandable, respectively corresponding to different services, and different transmission layers can be called according to actual communication transmission requirements to transmit information. To the physical layer interface (for example, USB interface, shared memory interface, etc.), support for extending multiple transport layer protocols. For example, for a first service, transport layer 1 is called for information transmission, and for a second service, transport layer 2 can be called for information transmission. The transport layer protocols used by different transport layers are different.

The second processing unit 140 sends a sync frame (synchronization frame) to the first processing unit 130; the first processing unit 130 is further configured to receive an acknowledgment frame (ACK, Acknowledgement) after receiving the sync frame, in the first processing unit 130 and the A connection is established between the two processing units 140. In the embodiment of the present invention, when the preset condition is met, the second processing unit 140 initiates the connection. The process of establishing is to send a sync frame. Preset conditions can be initialized for power on, restart, etc.

It should be understood that, in the embodiment of the present invention, the first processing unit 130 and the second processing unit 140 establish a connection by sync and ACK, and the first processing unit 130 registers the service in no order. The first processing unit 130 registration service may be before or after the connection is established.

The second processing unit 140 performs service discovery and registers a client corresponding to the service. In one embodiment, the client registered by the second processing unit 140 corresponds to the service registered by the first processing unit 130. And the first processing unit 130 registers the same service, and the client registered by the second processing unit 140 also corresponds to a corresponding port to transmit information to the transport layer through the port, and to the corresponding port through the port of the transport layer. Physical interface.

After the second processing unit 140 registers the client, the first processing unit 130 and the second processing unit 140 may perform information interaction. Specifically, when performing information interaction, a data packet format as shown in FIG. 6 may be adopted. It includes the flag bit (header part), the length (the length of the entire packet), the control flag (the flag is the client or the server), the port number (local port), the service ID, the customer ID, the data ID, the control bit, the message ID, data length, data (data).

In an embodiment of the invention, the port number is the port number of the second port, which is used to mark which physical interface the data packet is transmitted to. For example, when the physical interface includes a USB interface and a shared memory interface, the data packet can be correctly transmitted to the corresponding physical interface through the port number, thereby implementing interaction with the second processing unit 140. Thus, when the data packet is transmitted to the physical layer, the port number field can be deleted, that is, the data packet transmitted to the opposite end does not include the port number field.

In the embodiment of the present invention, the port numbers of different physical interfaces (hardware interfaces) are different. Therefore, by specifying the port number in the data packet, the data packet can be correctly forwarded, so that the information acquired by the application layer registration service can be realized. Send through an accurate physical interface. Thus, the dual-core communication device of the embodiment of the present invention can support extending multiple physical interfaces (that is, extending multiple physical layer protocols).

The service ID is the ID number of the registered service. The client ID is the ID number of the client corresponding to the service. The control bit is used to identify the data packet as a request packet, a reply packet, and the like. The data (data) adopts the type-len-value format, where type is used to indicate the type of the entire data block, len is used to indicate the size of the value area, and value is the data area.

In an embodiment of the invention, a service may need to send multiple data packets, whereby the message ID indicates the sequence number of the transmitted data packet. The data ID is used to distinguish the message type of the packet. A plurality of different types of data may be included in each data packet, whereby one message ID may correspond to multiple types. For example, information such as signal strength and network format can be transmitted as one data packet, and types of different data blocks are indicated by type in the data field, thereby implementing one data packet to transmit multiple information belonging to the same message type. .

It should be understood that the packet format shown in FIG. 6 is merely exemplary, and other similar formats may also be employed.

In an embodiment of the present invention, specifically, the first processing unit 130 configures a first logical port corresponding to the preset service, and configures a second logical port corresponding to the physical interface of the first processing unit 130. . The information obtained by the preset service is transmitted to the second logical port through the first logical port to be transmitted to the second processing unit 140 through the physical interface of the first processing unit 130. The second processing unit 140 configures a third logical port corresponding to the client, and configures a fourth logical port corresponding to the physical interface of the second processing unit 140. The information received by the physical interface of the second processing unit 140 is transmitted to the third logical port through the fourth logical port for transmission to the client.

In an embodiment of the present invention, when the second processing unit 140 is powered off, or an abnormal restart occurs, the second processing unit 140 turns off the client and the port. When it returns to normal, the connection may be re-established with the first processing unit 130 by sending a synchronization frame (sync frame) to re-execute the registration service, register the client, and the like, and perform information interaction.

Similarly, if the first processing unit 130 is turned off or an abnormal restart occurs, the first place The unit 130 will close the corresponding service, port. When the first processing unit 130 returns to normal, the connection may be re-established with the second processing unit 140 by sending a synchronization frame (sync frame) to re-execute the registration service, register the client, and the like, and perform information interaction.

In the embodiment of the present invention, the C/S communication architecture is adopted between the first processing unit 130 and the second processing unit 140 to implement sharing of card information. Therefore, the first processing unit 130 can share the acquired information to the second processing unit 140, so that the second processing unit 140 can obtain the information on the instant. And because different ports are registered for different services, corresponding transmissions can be extended, and multiple physical layer protocols can be extended.

After the user identification card information sharing scheme described above is used, after the second processing unit acquires the user identification card information, in the search period of the search network:

In an embodiment of the invention, the first subscriber identity card can be used as the primary card and the second subscriber identity card can be used as the secondary card. When the network is registered, the first processing unit acquires the information of the first user identification card, and loads the network parameter corresponding to the first user identification card according to the obtained information, to register the first user identification card in the first network. Voice and data services. And the first processing unit further acquires the information of the second user identification card, and loads the network parameter corresponding to the second user identification card according to the acquired information, to register the voice service of the second user identification card in the second network.

The first processing unit also sends the acquired information of the second user identification card to the second processing unit. The second processing unit registers the data service of the second subscriber identity card in the second network according to the received information of the second subscriber identity card.

In addition, the second processing unit may also perform a read and write operation on the first user identification card and/or the second user identification card.

Referring to FIG. 7, in the communication method of the embodiment of the present invention, in step S51, the first processing unit acquires information of the first user identification card and the second user identification card. In step S52, the first processing unit sends the acquired information of the second user identification card to the second processing unit. In step S53, the first processing unit communicates with the first 4G network based on the acquired information of the first user identification card, and performs data. business. In step S54, the second processing unit performs data service based on the received information of the second user identification card and the second 4G network communication.

It should be understood that the acquisition of the information of the user identification card by the second processing unit is the same as that of the foregoing embodiment 1, and details are not described herein again. The specific method of the data service and the voice service described above is also applicable to the communication method of the embodiment of the present invention, and details are not described herein again.

The embodiment of the invention further provides a storage medium, wherein the storage medium stores executable instructions, and the executable instructions are used to execute the communication method described above.

The terminal, the communication method, and the storage medium of the embodiment of the present invention enable the two user identification cards to reside on the 4G network through the interaction between the first processing unit and the second processing unit, and can use two 4G channels for data services. Concurrent transmission improves transmission efficiency; in addition, when data service transmission is performed, voice service transmission can be performed to improve user experience; on the other hand, two user identification cards are managed by the first processing unit, which can improve management efficiency. . And the C/S communication architecture is adopted between the first processing unit and the second processing unit to implement sharing of information. Therefore, the first processing unit can share the acquired information to the second processing unit by using the data interface, so that the second processing unit can obtain the information in real time and save costs. And because the different ports for different service registrations are transmitted correspondingly, it is supported to extend multiple transport layer protocols and physical layer protocols.

In the above embodiments of the present invention, the first 4G network and the second 4G network may be LTE networks, or other types of 4G networks. In a pre-existing embodiment of the present invention, the first 4G network and the second 4G network may be different networks of different operators, or the same or different networks of the same carrier.

In an embodiment of the invention, the terminal may comprise any mobile, portable computing or communication device, such as a cellular device, that is connectable to the network. For example, terminal 100 can be a cellular telephone (cell phone), a navigation system, a computing device, a camera, a PDA, a music device, a gaming device, or a handheld device with wireless connectivity.

In the embodiments of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it is to be understood that the terms "first", "second", etc. are used only for the description. Purpose, and cannot be understood as indicating or implying relative importance.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing storage medium includes: a mobile storage device, a random access memory (RAM), a read-only memory (ROM), a magnetic disk, or an optical disk. A medium that can store program code.

Alternatively, the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for making A computer device (which may be a personal computer, server, or network device, etc.) performs all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a RAM, a ROM, a magnetic disk, or an optical disk.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Industrial applicability

The present invention discloses a terminal, a communication method, and a storage medium. The first user identification card and the second user identification card in the terminal are both connected to the first processing unit, and the first processing unit is connected to the second processing unit; The unit is configured to acquire information of the first user identification card and the second user identification card; the first processing unit is further configured to send the acquired information of the second user identification card to the second processing unit; the first processing unit is configured to be based on Obtaining the information of the first user identification card and The first 4G network communicates to perform data service; and the second processing unit is configured to perform data service by communicating with the second 4G network based on the received information of the second user identification card. The invention has the beneficial effects that the interaction between the first processing unit and the second processing unit enables two user identification cards to reside in the 4G network, and the two 4G channels can be used for concurrent transmission of data services, thereby improving Transmission efficiency.

Claims

A terminal comprising:

a first user identification card, a second user identification card, a first processing unit, and a second processing unit;

The first user identification card and the second user identification card are both connected to the first processing unit, and the first processing unit is connected to the second processing unit;

The first processing unit is configured to acquire information of the first user identification card and the second user identification card;

The first processing unit is further configured to send the acquired information of the second user identification card to the second processing unit;

The first processing unit is configured to communicate with the first 4G network based on the acquired information of the first user identification card, and perform data service based on the first 4G network;

The second processing unit is configured to communicate with the second 4G network based on the received information of the second user identification card, and perform data service based on the second 4G network.
The terminal of claim 1, wherein the first processing unit is further configured to communicate with the 2G and/or 3G network based on the acquired information of the second subscriber identity card, to perform voice over a 2G and/or 3G network business.
The terminal of claim 2, wherein the first processing unit is further configured to communicate with the 2G and/or 3G network based on the acquired information of the first subscriber identity card, to perform voice over a 2G and/or 3G network business.
The terminal according to claim 3, wherein the first processing unit is further configured to: when the network is registered, load the corresponding network parameter according to the information of the first user identification card, initiate a search, and the The first subscriber identity card resides on the first 4G network by the first processing unit.
The terminal according to claim 1, wherein the first processing unit is further configured to: when the network is registered, load the corresponding network parameter according to the information of the second user identification card, and perform Searching the network registration, the second subscriber identity card is camped on the 2G or 3G network through the first processing unit.
The terminal according to claim 1, wherein the second processing unit is further configured to perform a network registration based on the acquired information of the second user identification card, and pass the second user identification card to the second processing The unit resides on the second 4G network.
The terminal of claim 1, wherein the first processing unit comprises a first data interface, and the second processing unit comprises a second data interface coupled to the first data interface of the first processing unit;

The second processing unit acquires information of the second user identification card from the first processing unit by using the second data interface and the first data interface.
The terminal according to claim 1, wherein the second processing unit is further configured to send a synchronization frame to the first processing unit when a preset condition is met;

The first processing unit is further configured to: after receiving the synchronization frame sent by the second processing unit, establish a connection with the second processing unit by replying to the confirmation frame;

The first processing unit is further configured to register a preset service manner, and acquire information about the first user identification card and/or the second user identification card;

The second processing unit is further configured to perform service discovery and interact with the first processing unit to perform information of the second user identification card by registering a client corresponding to the preset service.
The terminal according to claim 8, wherein the second processing unit is further configured to perform at least one of the following fields: the flag, the length, the control flag, the port number, and the service. Serial Number ID, Customer ID, Data ID, Control Bit, Message ID, Data Length, and Data.
The terminal according to claim 1, wherein

The first processing unit is further configured to configure a first logical end corresponding to the preset service And configuring a second logical port corresponding to the physical interface of the first processing unit;

The first processing unit is further configured to transmit information of the second subscriber identity card to the second logic port by using the second logical port and the first logical port, by using the first processing unit The physical interface is transmitted to the second processing unit.
The terminal according to claim 10, wherein

The second processing unit is further configured to configure a third logical port corresponding to the client, and configure a fourth logical port corresponding to the physical interface of the second processing unit;

The second processing unit is further configured to transmit information of the second subscriber identity card received through a physical interface of the second processing unit to the third logical port through the fourth logical port, Transmitting to the client via the third logical port.
The terminal of claim 1, wherein the terminal further comprises:

The first application service processor is coupled to the first processing unit, configured to provide an interaction interface, receive an operation instruction of the user, and transmit the operation instruction to the first processing unit.
The terminal of claim 1, wherein the terminal further comprises:

a second application service processor, which is respectively connected to the second processing unit and the first application service processor, configured to receive information sent by the first application service processor, and transparently transmit the information to the second processing unit.
A communication method comprising:

The first processing unit acquires information of the first user identification card and the second user identification card;

The first processing unit sends the acquired information of the second user identification card to the second processing unit;

The first processing unit communicates with the first 4G network based on the acquired information of the first user identification card, and performs data service based on the first 4G network;

The second processing unit communicates with the second 4G network based on the received information of the second user identification card, and performs data service based on the second 4G network.
The communication method according to claim 14, wherein the method further comprises:

The first processing unit communicates with the 2G and/or 3G network based on the acquired information of the second subscriber identity card, and performs voice service over the 2G and/or 3G network.
The communication method according to claim 14, wherein the method further comprises:

The first processing unit communicates with the 2G and/or 3G network based on the acquired information of the first subscriber identity card, and performs voice service over the 2G and/or 3G network.
The communication method according to claim 14, wherein the first processing unit sends the acquired information of the second user identification card to the second processing unit, including:

When the preset condition is met, the second processing unit sends a synchronization frame to the first processing unit;

After receiving the synchronization frame sent by the second processing unit, the first processing unit establishes a connection with the second processing unit by replying to the confirmation frame.

The first processing unit registers a preset service to obtain information of the first user identification card and/or the second user identification card;

The second processing unit performs service discovery and performs interaction of the information of the second user identification card with the first processing unit by registering a client corresponding to the preset service.
The communication method according to claim 17, wherein said second processing unit performs service discovery and performs second user identification with said first processing unit by registering a client corresponding to said preset service The interaction of the card's information, including:

The first processing unit configures a first logical port corresponding to the preset service, and configures a second logical port corresponding to a physical interface of the first processing unit;

Transmitting, by the first processing unit, the information of the second user identification card to the second logical port by using the first logical port, and transmitting the information to the second processing unit by using a physical interface of the first processing unit .
The communication method according to claim 18, wherein said second processing unit executes The service discovery, and the registration of the information of the second user identification card with the first processing unit by means of registering the client corresponding to the preset service, includes:

The second processing unit configures a third logical port corresponding to the client, and configures a fourth logical port corresponding to the physical interface of the second processing unit;

Transmitting, by the second processing unit, the information of the second subscriber identity card received by the physical interface of the second processing unit to the third logical port by using the fourth logical port, by using the Three logical ports are transmitted to the client.
A storage medium storing executable instructions for performing the communication method according to any one of claims 14 to 19.