WO2021135815A1

WO2021135815A1 - Communication method and related device and communication system

Info

Publication number: WO2021135815A1
Application number: PCT/CN2020/133806
Authority: WO
Inventors: 郭涛; 李重锦; 段文杰
Original assignee: 荣耀终端有限公司
Priority date: 2019-12-30
Filing date: 2020-12-04
Publication date: 2021-07-08
Also published as: CN113133076B; CN113133076A

Abstract

The present invention discloses a communication method and a related terminal device, wherein the method comprises: a terminal device having a plurality of SIM cards acquires a position of the terminal device, and when it is determined that an area where the terminal device is located changes, the terminal device switches primary/secondary SIM cards, and uses a telecommunication operator's communication services with better communication quality in the current area. Wherein, the terminal device searches a telecommunication operator with an optimal communication quality corresponding to the current area from a mapping table which is obtained from a cloud server. The present invention further discloses a communication method and a related cloud server, wherein the method comprises the following steps: acquiring a communication quality report of a plurality of terminal devices, generating a mapping table, and sending the mapping table to the plurality of terminal devices. Wherein, the mapping table comprises identifications of a plurality of areas and an identification of the telecommunications operator corresponding to each of the plurality of areas. The present invention can solve the problem of unstable communication service caused by the telecommunication operator's high frequency switching of a multi-SIM card terminal device in the high-speed mobile scene.

Description

Communication method, related equipment and communication system

This application claims the priority of the Chinese patent application filed with the Chinese Patent Office on December 30, 2019, with the application number of 201911398288.1, the application name of "communication method, related equipment and communication system", the entire content of which is incorporated into this application by reference in.

Technical field

The present invention relates to the field of communication technology, in particular to a communication method, related equipment and a communication system in a high-speed mobile scene.

Background technique

High-speed railways (referred to as high-speed railways) are now one of the important ways for citizens of various countries to travel, especially in China, which is currently the country with the longest coverage in the world. According to China's mid- and long-term railway network planning plan, in 2020, China's high-speed railway mileage of more than 200 kilometers per hour will exceed 30,000 kilometers. Users generate communication demands during high-speed rail journeys. Various telecom operators will build communication coverage base stations on existing high-speed rail lines to provide communication services. For example, China has three major telecom operators, namely China Mobile, China Unicom, and China Telecom. Both have built communication coverage base stations in the existing high-speed rail line sections. Due to differences in funds, network planning, and network optimization of various telecom operators, there will be a certain same area. Telecom operator A’s network coverage is wider and the user experience is relatively better, while telecom operator B’s network does not cover it. The user experience is relatively poor.

The SIM card (Subscriber Identification Module) is an identification card used by a telecom operator to identify a user, and is also called a user identification card. The SIM card can be used to access the telecom operator for communication services. A dual-SIM dual-standby mobile phone refers to a mobile phone that can install two SIM cards at the same time, and the two SIM cards are in a standby state. At present, many models of mobile phones in the Chinese mobile phone market support dual-SIM and dual-standby. Users who use dual-SIM and dual-standby phones usually choose two SIM cards of different telecom operators and choose to use the communication services of a certain telecom operator according to their needs.

On terminal equipment, usually a telecommunications operator is used by default, and normal communication services are performed in the telecommunications operator’s network. Even if the communication service quality is relatively poor at this time, the user needs to manually switch the SIM card used to switch to another On the network of a telecom operator. Such a function is installed in some terminal operating systems, and the user can set the SIM card used for automatic switching on the terminal as the SIM card of the telecom operator with the best communication quality at the moment.

When the user turns on the automatic switching of the SIM card on the terminal, in the high-speed railway mobile communication system, as the high-speed railway moves at a high speed, the user terminal equipment may switch the communication service of the telecom operator at a high frequency, resulting in the terminal equipment communication service Problems such as ping-pong handover, high reestablishment rate, and high call drop rate occur.

Summary of the invention

The present invention provides a communication method, related equipment and system, which are used to solve the problem of unstable communication service caused by high-frequency switching of telecommunication operators of multi-SIM card terminal equipment in a high-speed mobile scene.

In the first aspect, the embodiments of the present invention provide a communication method applied to terminal equipment, where the terminal equipment has multiple subscriber identity module SIM cards, each of which corresponds to a different telecommunications operator, and is used for terminal equipment acquisition For communication services provided by different telecom operators, terminal equipment is registered to the networks of multiple telecom operators.

The method includes: a terminal device establishes a first communication connection with a first network device through a first SIM card, and the terminal device establishes a second communication connection with a second network device through a second SIM card. The terminal device obtains the communication service provided by the first telecommunication operator through the first communication connection, and the terminal device obtains the communication service provided by the second telecommunication operator through the second communication connection. The first network equipment is a network equipment of a first telecommunication operator, and the second network equipment is a network equipment of a second telecommunication operator.

The terminal device determines that it is located in the first area, and in the first area, the terminal device uses the first communication connection to carry the data service.

When it is detected that the terminal device is located in the second area or the distance between the terminal device and the second area is less than the first distance value, the terminal device finds the second telecommunication operator corresponding to the second area from the first mapping table.

In the second area, the terminal device uses the second communication connection to carry data services.

The terminal device has a first mapping table, and the first mapping table includes the identities of multiple regions and the identities of telecommunication operators corresponding to each of the multiple regions. The first area and the second area are adjacent areas in the plurality of areas. The first telecommunications operator is the telecommunications operator corresponding to the first area in the first mapping table, and the second telecommunications operator is the telecommunications operator corresponding to the second area in the first mapping table.

With reference to the first aspect, in some embodiments, before the terminal device uses the second communication connection to carry the data service, the terminal device determines that the terminal device does not have an ongoing voice service.

With reference to the first aspect, in some embodiments, if the terminal device is performing a voice service, after waiting for the voice service to end, the terminal device uses the second communication connection to carry the data service.

With reference to the first aspect, in some embodiments, the quality of the communication service provided by the second telecommunication operator in the second area is better than the quality of the communication service provided by the first telecommunication operator in the second area.

With reference to the first aspect, in some embodiments, the first area and the second area correspond to different telecommunication operators.

With reference to the first aspect, in some embodiments, the terminal device obtains the first mapping table from the cloud server.

In the second aspect, an embodiment of the present invention provides a communication method applied to a cloud server, and the method includes:

The cloud server obtains communication quality reports from multiple terminal devices. The communication quality report includes: the location of the terminal device, the identification of the telecommunication operator that provides the communication service to the terminal device, and the communication quality parameter of the communication service.

The cloud server generates the first mapping table according to the communication quality report. Wherein, the first mapping table includes the identities of multiple regions and the identities of telecommunication operators corresponding to each of the multiple regions. In the first mapping table, the area contains the positioning data of each point in the area. In the first mapping table, the communication quality of the communication service provided by the telecommunication operator corresponding to an area in the area is higher than the first threshold, or the communication quality of the provided communication service is the highest. The telecommunication operator corresponding to an area is determined according to the communication quality parameters in the communication quality report reported by the terminal equipment in the area.

The cloud server sends the first mapping table to the terminal device.

With reference to the second aspect, in some embodiments, the communication quality parameters include the call drop rate, call drop rate, jam rate, delay time (ms), network rate ( mb/s), the number of handovers of the telecommunication operator in the first time.

With reference to the second aspect, in some embodiments, different regions correspond to different telecommunication operators.

With reference to the second aspect, in some embodiments, the cloud server periodically sends the first mapping table to the terminal device at the second time interval.

In a third aspect, an embodiment of the present invention provides a terminal device. The terminal device includes a plurality of subscriber identification module SIM cards, a positioning device, a communication device, a memory, and a processor coupled to the memory. Multiple SIM cards correspond to different telecommunication operators, and are used for terminal equipment to obtain communication services provided by different telecommunication operators. The terminal equipment is registered in the networks of multiple telecom operators.

The communication device is used to establish a first communication connection with the first network device through the first SIM card.

The communication device is also used to establish a second communication connection with the second network device through the second SIM card. Wherein, the first communication connection is used to obtain the communication service provided by the first telecommunication operator, and the second communication connection is used to obtain the communication service provided by the second telecommunication operator. The first network equipment is a network equipment of a first telecommunication operator, and the second network equipment is a network equipment of a second telecommunication operator.

The positioning device is used to obtain that the terminal device is located in the first area, and in the first area, the communication device is also used to use the first communication connection to carry data services.

The processor is used for when detecting that the terminal device is located in the second area or the distance between the terminal device and the second area is less than the first distance value, the processor finds the second telecommunication operator corresponding to the second area from the first mapping table Quotient.

In the second area, the communication device is also used to use the second communication connection to carry data services.

The memory is used to store data or instructions generated during the execution of the program by the processor.

The memory stores a first mapping table, and the first mapping table includes identifiers of multiple regions and identifiers of telecommunication operators corresponding to each of the multiple regions. The first area and the second area are adjacent areas in the plurality of areas. The first telecommunication operator is the telecommunication operator corresponding to the first area in the first mapping table. The second telecommunication operator is the telecommunication operator corresponding to the second area in the first mapping table.

With reference to the third aspect, in some embodiments, the communication device is further configured to determine that the communication device does not have an ongoing voice service before the communication device uses the second communication connection to carry the data service.

With reference to the third aspect, in some embodiments, if the communication device is performing a voice service, after waiting for the voice service to end, the communication device uses the second communication connection to carry the data service.

With reference to the third aspect, in some embodiments, the quality of the communication service provided by the second telecommunication operator in the second area is better than the quality of the communication service provided by the first telecommunication operator in the second area.

With reference to the third aspect, in some embodiments, the first area and the second area correspond to different telecommunication operators.

With reference to the third aspect, in some embodiments, the processor is further configured to obtain the first mapping table from the cloud server.

In a fourth aspect, an embodiment of the present invention provides a cloud server, including: a receiver, a transmitter, a memory, and a processor coupled to the memory.

The receiver is used to obtain communication quality reports from multiple terminal devices. The communication quality report includes: the location of the terminal device, the identification of the telecommunication operator that provides the communication service to the terminal device, and the communication quality parameter of the communication service.

The processor is configured to generate a first mapping table according to the communication quality report. Wherein, the first mapping table includes the identities of multiple regions and the identities of telecommunication operators corresponding to each of the multiple regions. In the first mapping table, the area contains the positioning data of each point in the area. In the first mapping table, the communication quality of the communication service provided by the telecommunication operator corresponding to an area in the area is higher than the first threshold, or the communication quality of the provided communication service is the highest; the telecommunication operator corresponding to an area is based on a The communication quality parameters in the communication quality report reported by the terminal equipment in the area are determined.

The transmitter is used to send the first mapping table to the terminal device.

With reference to the fourth aspect, in some embodiments, the communication quality parameters include the call drop rate, call drop rate, jam rate, delay time (ms), network rate (mb/ s), the number of handovers of the telecommunication operator in the first time.

With reference to the fourth aspect, in some embodiments, different regions correspond to different telecommunication operators.

With reference to the fourth aspect, in some embodiments, the transmitter periodically sends the first mapping table to the terminal device at the second time interval.

In a fifth aspect, an embodiment of the present invention provides a terminal device. The terminal device includes a plurality of subscriber identification module SIM cards, a positioning module, a communication module, a storage module, and a processing module coupled to the storage module. Multiple SIM cards correspond to different telecommunication operators, and are used for terminal equipment to obtain communication services provided by different telecommunication operators. The terminal equipment is registered in the networks of multiple telecom operators.

The communication module is used to establish a first communication connection with the first network device through the first SIM card.

The communication module is also used to establish a second communication connection with the second network device through the second SIM card. Wherein, the first communication connection is used to obtain the communication service provided by the first telecommunication operator, and the second communication connection is used to obtain the communication service provided by the second telecommunication operator. The first network equipment is a network equipment of a first telecommunication operator, and the second network equipment is a network equipment of a second telecommunication operator.

The positioning module is used to obtain that the terminal device is located in the first area. In the first area, the communication module is further configured to use the first communication connection to carry data services.

The processing module is used for when it is detected that the terminal device is located in the second area or the distance between the terminal device and the second area is less than the first distance value, the processing module finds the second telecom corresponding to the second area from the first mapping table. Operator.

In the second area, the communication module is also used to use the second communication connection to carry data services.

The storage module is used to store data or instructions generated during the execution of the program by the processing module.

The storage module stores a first mapping table, and the first mapping table includes identifiers of multiple regions and identifiers of telecommunication operators corresponding to each of the multiple regions. The first area and the second area are adjacent areas in the plurality of areas. The first telecommunication operator is the telecommunication operator corresponding to the first area in the first mapping table. The second telecommunication operator is the telecommunication operator corresponding to the second area in the first mapping table.

With reference to the fifth aspect, in some embodiments, the communication module is further configured to determine that the communication module does not have an ongoing voice service before the communication module uses the second communication connection to carry the data service.

With reference to the fifth aspect, in some embodiments, if the communication module is performing a voice service, after waiting for the voice service to end, the communication module uses the second communication connection to carry the data service.

With reference to the fifth aspect, in some embodiments, the quality of the communication service provided by the second telecommunication operator in the second area is better than the quality of the communication service provided by the first telecommunication operator in the second area.

With reference to the fifth aspect, in some embodiments, the first area and the second area correspond to different telecommunication operators.

With reference to the fifth aspect, in some embodiments, the processing module is further configured to obtain the first mapping table from the cloud server.

In a sixth aspect, an embodiment of the present invention provides a cloud server, including: a receiving module, a transmitting module, a storage module, and a processing module coupled to the storage module.

The receiving module is used to obtain communication quality reports from multiple terminal devices. The communication quality reports include: the location of the terminal device, the identification of the telecommunication operator that provides the communication service to the terminal device, and the communication quality parameter of the communication service.

The processing module is used for generating a first mapping table according to the communication quality report. Wherein, the first mapping table includes the identities of multiple regions and the identities of telecommunication operators corresponding to each of the multiple regions. In the first mapping table, the area contains the positioning data of each point in the area. In the first mapping table, the communication quality of the communication service provided by the telecommunication operator corresponding to an area in the area is higher than the first threshold, or the communication quality of the provided communication service is the highest; the telecommunication operator corresponding to an area is based on a The communication quality parameters in the communication quality report reported by the terminal equipment in the area are determined.

The transmitting module is used to send the first mapping table to the terminal device.

With reference to the sixth aspect, in some embodiments, the communication quality parameters include the call drop rate, call drop rate, jam rate, delay time (ms), network rate (mb/ s), the number of handovers of the telecommunication operator in the first time.

With reference to the sixth aspect, in some embodiments, different regions correspond to different telecommunication operators.

With reference to the sixth aspect, in some embodiments, the transmitting module periodically sends the first mapping table to the terminal device at the second time interval.

In a seventh aspect, an embodiment of the present invention provides a communication system, including a terminal device and a cloud server, where the terminal device is the terminal device mentioned in any one of the third aspect and/or the fifth aspect, and the cloud server is the first The cloud server mentioned in any of the four aspects and/or the sixth aspect.

According to the above technical solution, in high-speed mobile scenarios, especially on high-speed railway sections, the multi-SIM card terminal equipment automatically switches to use the communication services of the telecom operators with better communication conditions based on the prior information of the telecom operators’ communication conditions to ensure the terminal The device is always in the optimal communication state, and the user of the terminal device gets a better communication experience.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the background art, the following will describe the drawings that need to be used in the embodiments of the present application or the background art.

Fig. 1 is a schematic diagram of a communication system provided by the present application;

Figure 2 is a schematic diagram of a competitive random access process in the prior art;

Fig. 3 is a schematic diagram of a communication area coverage scenario on a high-speed railway line provided by the present application;

Figure 4 is a schematic diagram of a high-speed railway line provided by this application;

Fig. 5 is a flowchart of a communication method provided by the present application;

Fig. 6 is a first schematic diagram of a terminal device display interface provided by the present application;

Figure 7 is a second schematic diagram of a terminal device display interface provided by this application;

FIG. 8 is a third schematic diagram of a terminal device display interface provided by this application;

Figure 9 is a fourth schematic diagram of a terminal device display interface provided by this application;

FIG. 10 is a block diagram of a communication system of a communication method based on big data learning provided by this application;

FIG. 11 is a flowchart of a communication method based on a big data learning mechanism provided by this application;

FIG. 12 is a flowchart of a method for big data calculation provided by this application;

FIG. 13 is a schematic diagram of the hardware structure of a terminal device provided by this application;

FIG. 14 is a block diagram of the software structure of a terminal device provided by this application;

FIG. 15 is a schematic structural diagram of a cloud server provided by this application;

FIG. 16 is a schematic diagram of modules of a cloud server provided by this application;

FIG. 17 is a schematic structural diagram of a wireless communication system provided by this application.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. The terms used in the implementation part of the embodiments of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. In the following description, specific details such as specific configurations and components are provided only to help comprehensively understand the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for clarity and conciseness, descriptions of known functions and configurations are omitted.

It should be understood that “one embodiment” or “an embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

In the various embodiments of the present invention, it should be understood that when this application refers to ordinal numbers such as "first", "second", or "third", unless it actually expresses the meaning of the order according to the context, it should be understood For the purpose of distinction only. It should be understood that the size of the sequence number of the following processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

It should be understood that the term "and/or" in this text is only an association relationship describing the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist. , There are three cases of B alone. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

Fig. 1 shows a communication system involved in this application. The system includes terminal equipment and network side equipment of different telecom operators.

In the embodiment of the present invention, the terminal device may be a mobile communication device capable of supporting multiple cards and multiple standbys, including but not limited to user equipment (UE), mobile phones (cell phones), personal digital assistants (PDA), wireless communication devices, handheld devices , Laptop computers, cordless phones, mobile smart hotspots or other devices that can spontaneously communicate with mobile communication networks without human operation.

Among them, the terminal device can support multi-mode communication, and multi-mode refers to two or more network standards. For example, among the current mainstream telecom operators in China, China Mobile uses GSM(2G)/TD-SCDMA(3G)/TD-LTE(4G); China Unicom uses GSM(2G)/WCDMA( 3G)/TD-LTE(4G)/FDD-LTE(4G); China Telecom uses CDMA1X(2G)/EVDO(3G)/TD-LTE(4G)/FDD-LTE(4G). At present, for domestic terminal equipment, it can support 7 modes, namely GSM/TD-SCDMA/WCDMA/TD-LTE/FDD-LTE/CDMA1X/EVDO communication, which can be called full Netcom terminal equipment.

In the embodiment of the present invention, the network side device (network device) may be a device that connects the terminal to the wireless network. The device may be a base station, or various wireless access points, and may refer to a device that communicates with a terminal through one or more sectors on an air interface in an access network. The base station can be used to communicate with one or more terminals, and can also be used to communicate with one or more base stations with partial terminal functions. The form of the base station in the present invention is not limited, and it can be a macro base station (Macro Base Station), a micro base station (Pico Base Station), a Node B (name of 3G mobile base station), an enhanced base station (ENB), and a home enhanced base station (Femto eNB or Home eNode B or Home eNB or HNEB), relay station, access point, RRU (Remote Radio Unit), RRH (Remote Radio Head, remote radio head), etc. The base station can be the Base Transceiver Station (BTS) in the Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, or the Evolutional Node B (Evolutional Node B) in the LTE system , ENB), as well as base stations in 5G systems and New Air Interface (NR) systems. In addition, the base station may also be an access point (Access Point, AP), a transmission area (Trans TRP), a central unit (Central Unit, CU) or other network entities, and may include some or all of the functions of the above network entities. .

The network side device can obtain the terminal device bearer context information. The bearer context information can refer to the terminal bearer list, which specifically includes the bearer identifier (E-RAB ID), the QoS parameters corresponding to the bearer (E-RAB Level QoS Parameters), and the uplink or downlink GTP tunnel endpoint address (UL/DL GTP Tunnel Endpoint) In addition to bearer information (EBI, QCI, uplink and downlink AMBR, TFT, control plane and user plane addresses, etc.), context information can also include mobile phone network capabilities, TAI, S1APID, eNodeB ID, authentication information, negotiated security algorithms , Generated keys, created connection information (such as APN, PGW, QCI), etc., these information must be saved before the terminal device is separated from the network side device. Otherwise, when the user performs TAU, ServiceRequest, Detach, etc., it cannot be processed, because the network side device cannot find the context information of the terminal device, and it is not clear about its IP, the PGW it is connected to, and which bearers it created. Probably none of the messages it sends can be decrypted.

It is understandable that the network side devices may include network side devices that support second generation (2G), third generation (3G), and fourth generation (4G) access technologies, such as global Mobile communication system (global system for mobile communications, GSM), code division multiple access (code division multiple access, CDMA), long term evolution (long term evolution, LTE) access technology network side equipment; alternatively, it can also be packaged to support the first Fifth generation (5G) access technology network-side equipment, such as new radio (NR) access technology; or, it may also include network-side equipment supporting multiple wireless technologies, such as GSM technology, CDMA Network side equipment of technology, LTE technology and NR technology. In addition, it can also be a network-side device suitable for future-oriented communication technologies.

Here, in this application, a dual-card dual-standby terminal device is used as an example to illustrate the solution of this application, so as to facilitate those skilled in the art to understand the present invention. Dual card dual standby means that the two SIM cards installed on the terminal device can be used at the same time, the two cards do not interfere with each other, and they can communicate with the telecom operator at the same time. The dual-card single-standby terminal device refers to the terminal device that can install two SIM cards, but when one SIM card is used, the other SIM card is turned off, which is not suitable for the application scenarios involved in this application. Therefore, this application is suitable for application to terminal devices with multiple cards and multiple standbys, but not suitable for application on terminal devices with multiple cards and single standby. After understanding the dual-card dual-standby terminal device switching solution, the implementation of the multi-card multi-standby solution can be deduced by analogy. Those skilled in the art can easily understand how SIM card switching is performed on the multi-card multi-standby terminal device. .

When a terminal device equipped with two SIM cards is turned on and automatically requests to access the network, or when the user starts to use the SIM card, the terminal device will request access to the network side device at this time, and the two SIM cards can be connected by means of network authentication data. Enter the mobile network of the corresponding telecom operator, that is, the Attach process. What needs to be explained is that each SIM card stores the network authentication data of each number, which contains: the mobile subscriber identification (international mobile subscriber identification number, IMSI) of each number, authentication key, operator network parameters, etc. . After the network side device confirms, the terminal device is allowed to access the network, otherwise it is regarded as an illegal user, and the network side device will refuse to provide communication services for this user. Authentication is required before each registration, call establishment attempt, location update, and supplementary service activation, deactivation, registration or deletion. The completion of the deregistration of the terminal equipment on the network side and the deletion of the evolved packet system (evolved packet system, EPS) bearer is called the Detach process.

After the SIM card is registered to the network, it will perform random access and establish an RRC connection with the network device. It will be in the idle state when there is no communication service, and in the connected state when there is communication service access. Taking LTE as an example, if the terminal device does not have any data to download or upload, the terminal device is in the idle state /IDLE/RRC_IDLE. If the terminal device initiates a service again, the terminal device needs to make a Service Request and does not need to attach again, that is, there is no process of authentication and querying the capabilities of the terminal device. It only needs to include random access, RRC connection, and default bearer establishment. The terminal device is in Connected state /CONNECT/RRC_CONNECT. When the terminal device inactivity timer expires, the terminal device will return from the connected state to the idle state, which can save communication resources and reduce the load of the communication device.

When the terminal device in the IDLE state changes to the connected state, it needs to initiate a random access process, such as calling, responding to paging, TAU, Attach, etc. Among them, the scenarios used for competing random access can include the following: transition from the RRC_IDLE state to the RRC_CONNECT state, that is, the RRC connection process, such as initial access and TAU update; the initial access after the radio link fails, that is, the RRC connection Reconstruction process; in RRC_CONNECT state, uplink data and control information are not obtained but uplink data and control information are not obtained or uplink resources are not out of synchronization but need to apply for uplink resources through random access; in RRC_CONNECT state, switch from serving cell to target cell; in RRC_CONNECT state , The uplink synchronization is not obtained but the downlink data needs to be received.

From the perspective of technical realization, the current dual-card dual-standby solutions for terminal devices on the market are roughly divided into two types. One is the dual-card dual-standby dual-pass solution, which uses two sets of chipsets, that is, two sets of baseband chips, radio frequency chips and memory systems are installed in the terminal equipment. This implementation method can support two SIM cards to work at the same time, and When switching, there is no need to switch the machine again, and two sets of chips communicate with the network side equipment respectively. But the problem is that its cost is almost twice that of an ordinary mobile phone, and the power consumption is often twice that of a normal mobile phone, and there will be frequency band interference between two SIM cards. Another solution is the dual-card dual-standby single-pass solution. The terminal device is equipped with a set of baseband chip, a set of radio frequency, and a set of protocols, and then an analog switch is added to the traditional terminal device chipset to manually switch the network. , The two sets of independently operating protocol stacks are closely integrated, so that they can be realized through a set of protocol stacks. The principle of the current dual-card dual-standby single-pass solution is that through software, a control chip IC is used to continuously switch between the two networks and automatically search for the network. Because the switching time is very short, such as the frequency of one thousandth of a millisecond, The user cannot feel that the network is switched, which is equivalent to realizing that two cards are in working condition at the same time. In addition, international standards stipulate that when multiple services are concurrent, the priority of voice and SMS is always higher than that of data services, and users cannot switch the priority by themselves. This is called a dual-card dual-standby priority fuse mechanism. In dual-card dual-standby terminal equipment, we can define the concept of primary and secondary cards. The primary card can be the SIM card that carries data services in the current communication connection between the terminal equipment and the network, and the secondary card is another one that is not used to carry data services. SIM cards. For example, if the current primary card is set to be the first SIM card and the secondary card is the second SIM card, the first SIM card is used to carry user plane data transmission and reception and uses the traffic corresponding to the first telecommunications operator and may generate calculations. Fees, the second SIM card has no user-plane data interaction for the time being. Both the first SIM card and the second SIM card remain connected to the network side so that they can monitor and respond to network paging messages, such as voice access requests, etc. The one SIM card and the second SIM card can be in the standby state at the same time. The switching of the SIM card or the switching of the SIM card mentioned below essentially changes the priority order of multiple SIM cards for data/voice services, and may also be referred to as the switching of primary and secondary SIM cards.

The aforementioned baseband chip means that it can be used to synthesize the baseband signal to be transmitted and decode the received baseband signal. When transmitting a baseband signal, the audio signal is compiled into a baseband code; when receiving a signal, the baseband code is decoded into an audio signal. At the same time, the baseband chip is also responsible for the compilation of address information, text information, and picture information. The baseband chip is a very complex SOC. The mainstream baseband chip supports multiple network standards, that is, supports all mobile networks and wireless network standards on a single baseband chip, including 2G, 3G, 4G and WiFi, etc. Modular mobile terminals can realize seamless roaming among multiple mobile networks and wireless networks worldwide. At present, the basic structure of most baseband chips is a microprocessor and a digital signal processor. The microprocessor is the control center of the entire chip, most of which use ARM cores, and the DSP subsystem is responsible for baseband processing. The baseband chip can be divided into five sub-blocks: CPU processor, channel encoder, digital signal processor, modem and interface module.

The baseband chip has a variety of functions, and the normal work of each function is configured and coordinated through a microprocessor. The baseband chip is centered on the ARM microprocessor. It controls and configures the peripheral function modules around the ARM microprocessor through the dedicated bus (AHB bus) of the ARM microprocessor. These function modules mainly include GSM, WiFi, GPS, Bluetooth, DSP, memory, etc., and each functional module has an independent memory and address space, and their functions are independent of each other and do not affect each other. And the baseband chip itself has a power management chip.

Radio frequency is a core component of wireless communication equipment and a basic component that converts wireless electromagnetic wave signals and binary digital signals into each other. The radio frequency is connected to the antenna (Antenna, ANT). When receiving the signal, the antenna receives the radio frequency signal from the wireless channel, and when the signal is transmitted, the antenna radiates the radio frequency signal into the wireless channel.

Radio frequency can be divided into transmitting end (Transmit, TX) and receiving end (Receive, RX) according to function. The main function of the transmitter is to modulate the analog baseband/IF signal into a radio frequency signal. The main function of the receiving end is to demodulate the radio frequency signal received by the antenna into an analog baseband/IF signal.

According to the components of radio frequency, it can include power amplifier (PA), low noise amplifier (LNA), filter (Filters, FT), switch (Switches), duplexer (Duplexes), tuner ( Antenna Tuner, Power divider (PS) Circulator (CL), and Radio Frequency Integrated Circuit (RFIC). The power amplifier is responsible for amplifying the radio frequency signal of the transmitting channel. The filter is responsible for filtering the transmitted and received signals. The low noise amplifier is responsible for amplifying the power of the received radio frequency signal, reducing the noise figure of the radio frequency path, and improving the receiving sensitivity index. The radio frequency switch is responsible for switching between receiving and transmitting channels. The duplexer is responsible for quasi-duplex switching and RF signal filtering of the receiving/sending channel. The tuner is responsible for the channel selection, frequency change and amplification of the radio frequency signal. The CL characteristic is forward conduction and reverse isolation. The power divider has one input and two outputs, and is used to divide the power of the radio frequency signal into two evenly. RFIC can also be called a wireless radio frequency chip. Depending on the configuration of the internal registers of the RFIC, RFIC can modulate and demodulate LTE signals in different frequency bands, such as transforming radio frequency signals into analog baseband/IF signals or transforming analog baseband/IF signals into radio frequency signals .

Among them, the radio frequency switch connects any one or several of the multiple radio frequency signals through the control logic to realize the switching of different types of paths, including the switching of receiving and transmitting, and the switching between different frequency bands, so as to achieve shared antennas and save The purpose of the end product cost. Radio frequency switches can be divided into mobile communication conduction switches, WiFi switches, and antenna switches according to their uses; according to their structure, they can be divided into single-pole double-throw, single-pole multi-throw, and multi-pole multi-throw.

The terminal device usually needs to complete two major tasks in standby: the first is to send update messages based on conditions such as location/time to the network; the second is to periodically monitor and respond to paging messages sent by the network. Dual-card dual-standby single-pass terminal equipment is usually equipped with a single radio frequency transmitter Tx and 2 radio frequency receivers Rx. At this stage, the industry's technical level has not yet achieved 1 Tx to send dual system information, nor has it achieved 2 Rx at the same time. Separately scheduled to different systems, so the standby of dual-card dual-standby single-pass terminal equipment is completed by the way of time slot switching.

In one embodiment, a dual-card dual-standby terminal device can install two SIM cards (a first SIM card and a second SIM card), and the terminal is configured with one radio frequency transmitter TX and two radio frequency receivers RX. The first SIM card and the second SIM card in the above-mentioned terminal can separately occupy and use one of the two radio frequency RX channels, and use one radio frequency TX in the terminal in time sharing. For example, the first SIM card uses the first radio frequency RX, the second SIM card uses the second radio frequency RX, and the first SIM card and the second SIM card use the first radio frequency TX in time sharing. The manager is coupled to the first SIM card interface and the second SIM card interface respectively, the manager is coupled to the processor, and the processor is connected to the radio frequency transceiver. Wherein, the foregoing processor may be a baseband processor (Base Band Processor, BBP).

During communication, the manager may send an uplink data packet related to the service of the first SIM card and an uplink data packet related to the service of the second SIM card to the processor. The processor may send the uplink data packet to the corresponding network device through the first radio frequency TX according to the transmission priority of each uplink data packet of the first SIM card and the second SIM card on the first radio frequency TX. The transmission priority rule is set by the terminal device, can be set manually by the user, or can be set according to other rules. For example, if the user sets the first SIM card to be used in priority to the second SIM card in the ordinary data service, the transmission priority of the uplink data packet sent by the first SIM card on the first radio frequency TX is higher than that of the uplink data packet sent by the second SIM card .

In addition, in international standards, the priority of the call service is always higher than that of the data service. Therefore, if the wake-up paging request (call signaling packet) of the network device received by the terminal device is used to request the voice call service, the transmission priority of the uplink voice packet at the first radio frequency TX conference will be higher than that of the uplink data packet.

In one embodiment, the situation where the terminal device switches between the primary and secondary SIM cards is shown in FIG. 1. Switching between the primary and secondary SIM cards here means that the primary card is switched from the first SIM card to the second SIM card in the terminal settings, which is essentially the change in the transmission priority of the SIM card on the first radio frequency TX mentioned above. . The terminal equipment is first provided by the first telecommunications operator corresponding to the first SIM card to provide communication services, and at this time, the first network side equipment corresponding to the first telecommunications operator preferentially performs communication service transmission for the terminal equipment. After the terminal device initiates a request for switching to the second SIM card, the terminal device changes to the second network side device corresponding to the second telecommunications operator to preferentially perform communication service transmission.

In another embodiment, a dual-card dual-standby terminal device can install two SIM cards (the first SIM card and the second SIM card), and the terminal is equipped with two sets of baseband chips and two sets of radio frequencies, that is, there are two sets of baseband chips and two sets of radio frequencies. RF transmitter TX and two RF receivers RX. The first SIM card and the second SIM card in the above terminal can separately occupy and use one of the two sets of radio frequencies. For example, the first SIM card uses the first radio frequency TX and the first radio frequency RX, and the second SIM card uses the second radio frequency TX and the second radio frequency RX. At this time, the terminal device realizes dual-card dual-standby dual-communication. The first SIM card establishes a first communication connection with the first telecommunications operator network through the first radio frequency, and the second SIM card establishes a second communication connection with the second telecommunications operator network through the second radio frequency. Two communication connections, the first communication connection and the second communication connection can be in working state at the same time and do not affect each other.

This application will discuss the application of the communication system described in FIG. 1 in a high-speed mobile scenario, especially an application in a high-speed rail scenario.

High-speed railways (referred to as high-speed railways) are now one of the important ways for citizens of various countries to travel, especially in China, which is currently the country with the longest coverage in the world. Users generate communication demands during high-speed rail journeys. Various telecom operators will build communication coverage base stations on existing high-speed rail lines to provide communication services. For example, China has three major telecom operators, namely China Mobile, China Unicom, and China Telecom. Due to differences in the funds, network planning, and network optimization of various telecom operators, there will be a certain same area. The first telecom operator has a wider network coverage and a relatively better user experience, while the second telecom operator's network does not have coverage. The arrival or signal is poor, and the user experience is relatively poor. The subscriber identification module (SIM) is a credential card used by a telecom operator to identify a user, and is also called a user identification card. The SIM card can be used to access the telecom operator for communication services. The dual-card dual-standby terminal device means that the terminal device can install two SIM cards at the same time, and the two SIM cards can be in a standby state at the same time. At present, many models of mobile phones in the Chinese mobile phone market support dual-SIM and dual-standby. Users who use dual-SIM and dual-standby phones usually choose two SIM cards of different telecom operators and choose to use the communication services of a certain telecom operator according to their needs.

On terminal equipment, users usually use a default SIM card for data communication. When the communication status is poor, the user can manually switch the SIM card used to switch to the communication network of another telecom operator. Such a function is installed in some terminal operating systems, and the user can set on the terminal device to automatically switch the SIM card to the SIM card of the telecom operator with the best communication quality at the moment. When the user turns on the automatic switching of the SIM card on the terminal equipment, in the high-speed railway mobile communication system, as the high-speed railway moves at a high speed, the user terminal equipment may switch the communication service of the telecom operator at a high frequency, which causes the terminal equipment to communicate The service has problems such as ping-pong handover, high rebuild rate, and high call drop rate.

This application provides a communication method and device in a high-speed mobile scenario, a cloud communication method, a cloud server, and a communication system, which are used to solve the problem of high-frequency handover caused by telecommunication operators of multiple SIM card terminal devices in the high-speed mobile scenario. The problem of unstable communication services. In high-speed mobile scenarios, especially on high-speed railway sections, individual terminals report the call drop rate, call drop rate, stall rate, disconnect rate, delay time, network speed, and number of operator switchovers of telecom operators in a certain area After the communication quality indicators are sent to the cloud server, the cloud server intelligently selects the best telecom operator in the line area through big data learning, generates the "high-speed railway line-telecom operator" mapping table, that is, the first mapping table, and sends it to terminal. The high-speed rail mode is a function and service loaded on the terminal equipment, which can automatically switch between the primary and secondary SIM cards according to the method provided in this application to use the telecom operator with the best communication service. When the terminal device is in the high-speed rail mode, based on the prior information of the telecom operator's communication situation and the big data learning result of the cloud server, that is, the "high-speed rail line-telecom operator" mapping table pushed by the cloud server, multi-SIM card terminal equipment It can automatically switch to a telecom operator with better communication conditions to ensure that the terminal device is always in the optimal communication state, and the terminal device user gets a better communication experience. The above-mentioned communication methods, related equipment and communication systems in the high-speed mobile scenario will be described in detail below, and will not be repeated here.

The above-mentioned "high-speed railway line-telecom operator" mapping table can be as shown in Table 1. The table can include the high-speed railway line identification, area identification, the switching sequence of the area, and the corresponding telecom operator identification of the area, as well as the positioning data of the position of each point in each area. The area here refers to the division of the high-speed railway line into continuous High-speed rail path segments. Each high-speed rail path segment corresponds to a telecom operator with the best communication condition on the high-speed rail path. This continuous high-speed rail path segment is referred to as an area here. Each area can contain multiple cells, which can be covered by the base station signals of one or more telecommunication operators. Among them, a cell is also called a cell, which refers to a base station or a part of a base station in a cellular mobile communication system ( Sector antenna) within this range, the mobile station can reliably communicate with the base station through the wireless channel.

There may be multiple high-speed railway line identifiers in the "high-speed railway line-telecom operator" mapping table, and each high-speed railway line will be covered by one or more areas. In one embodiment, the first high-speed railway line may be covered by the first area and the second area. The area and the third area are covered, and the switching sequence of the areas is: first area → second area → third area. →Indicates the switching direction, that is, when the terminal device moves at a high speed on the first high-speed railway line, it switches from the first area to the second area, and then switches from the second area to the third area. The second high-speed railway line can be covered by the first area, the second area, the fourth area, and the fifth area, and the switching sequence of the areas is: the first area → the second area → the fourth area → the fifth area. The third high-speed railway line can be covered by the first area, the second area, the fourth area, and the sixth area, and the switching sequence of the areas is: the first area → the second area → the fourth area → the sixth area. Each area corresponds to a telecom operator with the best communication quality within the area.

Table 1

Figure 2 is a schematic diagram of a competitive random access (RRC connection) process in the prior art involved in the communication system of this application, which is mainly divided into four steps:

S101. Random access preamble (random access preamble). The terminal device selects the random access code preamble (random access preamble) and the physical random access channel (PRACH) of the random access resource, and sends the selected random access code to the base station on the selected PRACH resource preamble. In the NR, a specific preamble and/or PRACH resource is reserved for the system message request based on the step S101 message.

S102. Random access response (random access response). The base station receives the random access request and sends a random access response to the terminal. The random access response includes the uplink timing advance, the uplink resource UL grant allocated in the step S103 message, and the temporary cell wireless network temporary identification ( cell radio network temporary identifier, C-RNTI). The physical downlink control channel (PDCCH) that carries the scheduling message in the step S102 message is scrambled with RA-RNTI (indicating the resource block used by the user to send the random access preamble), and the step S102 message also carries the preamble ID. The terminal determines through the RA-RNTI and the preamble ID that the step S102 message corresponds to the step S101 message sent by it. In the NR, for the system message request based on the step S101 message, the step S102 message only contains the preamble ID information corresponding to the step S101 message, and there is no other content. And for the system message request scenario based on the step S101 message, the random access process ends with the step S102 message, that is, if the received step S102 message contains the preamble ID corresponding to the preamble sent by the step S101 message, it is considered to be based on the step S102 message. The system message request process of the S101 message is completed.

S103. Scheduled transmission (scheduled transmission). The terminal sends uplink transmission on the UL grant specified in the step S102 message. The content of the uplink transmission of the step S103 message for different random access reasons is different, such as initial access. The step S103 message transmits an RRC connection establishment request.

S104. Conflict resolution (contention resolution). The terminal can judge whether the random access is successful according to the message in step S104. For the initial access terminal, the temporary C-RNTI is automatically converted into the unique terminal identification C-RNTI of the terminal in the cell after the contention is resolved successfully.

Figure 3 exemplarily shows a communication area coverage scenario on a high-speed railway line. As shown in FIG. 3, the high-speed railway line between the high-speed railway station A and the high-speed railway station B is covered by multiple base stations of different telecommunication operators, and is used to provide services for terminal equipment moving on the high-speed railway line. A base station is a public mobile communication base station. It is an interface device for mobile terminal equipment to access the Internet. It is also a form of radio station. It refers to a certain radio coverage area through a mobile communication switching center to communicate with mobile terminal equipment. Radio transceiver station for information transmission. In an embodiment of the present application, according to a method, the high-speed rail line is divided into continuous high-speed rail path segments, and each high-speed rail path segment corresponds to a telecommunication operator with the best communication condition on the high-speed rail path, and this continuous high-speed rail path The fragment is called a region here. Each area can contain one or more cells, which can be covered by the base station signals of one or more telecommunication operators. Among them, a cell is also called a cell, which refers to a base station or a part of a base station in a cellular mobile communication system. (Sector antenna) Covers the range within which the mobile station can reliably communicate with the base station through the wireless channel. Regarding the methods mentioned above, I will elaborate on them below, so I won’t repeat them here.

In this application, when the terminal device turns on the high-speed rail mode, the terminal device can obtain path information, and then determine based on the path information based on a communication method in a high-speed mobile scenario and a method of generating a mapping table provided by this application Area, and switch between primary and secondary SIM cards.

The path information acquired by the terminal device at least includes path information of the movement route of the terminal device. Specifically, the path information of a route may include the switching sequence of multiple areas on the route and the information of each area. Among them, the area information can include the operator, frequency band, ID, latitude, longitude, TAC (tracking area code), cell ID (cell identification) of the cell corresponding to the area, frequency band, base station (eNobeB), etc., or the ECI of the cell Such as the identity used to uniquely identify the cell. Among them, ECI represents the ID composed of the ID of the base station (eNobeB) to which the cell belongs and the CELL ID of the cell.

For example, based on the scenario shown in FIG. 3, the first high-speed railway line between the high-speed rail station A and the high-speed rail station B may be covered by the first area, the second area, and the third area. When the moving route of the terminal device is the first high-speed rail line from the high-speed rail station A to the high-speed rail station B, the path information acquired by the terminal device includes at least the path information of the first high-speed rail line. Wherein, the path information of the first high-speed railway line includes the information of the first area, the second area, and the third area, and the switching sequence of the three areas.

In one embodiment, as shown in Figure 3, the switching sequence of the three areas is: first area → second area → third area, where → represents the switching direction, that is, the terminal device moves at high speed on the first high-speed railway line , Switch from the first area to the second area, and then switch from the second area to the third area.

The terminal device can determine the area where it currently resides (the current area), the next area that is about to enter, and the previous area of the current area based on the area switching sequence in the path information and the identifier corresponding to each area identifier, so that the terminal equipment can be in the corresponding area. Switch between neighboring areas.

For example, the terminal device currently resides in the first area, and the next area that it will pass is the second area. When the terminal device detects that it is about to enter the second area, it can prepare to switch to the second area in advance. Similarly, when the terminal device currently resides in the second area, and the terminal device detects that the next area to be passed is the third area, it can prepare to switch to the third area in advance.

Optionally, each area information may also include the switching priority of the communication system in the area, which is used to select the network with the highest priority according to the priority information when the terminal device detects multiple network standards belonging to the next area The system is switched. For example, in the same communication state, you can set 5G communication as the first priority, 4G communication as the second priority, 3G communication as the third priority, and 2G communication as the fourth priority. Among them, the first priority is the first priority. The second priority, the third priority, and the fourth priority are selected. The second priority is selected before the third priority and the fourth priority. The third priority is selected before the fourth priority.

In this application, the terminal device can obtain path information in a variety of ways.

In an example, the cloud server can actively push the path information to the terminal device that has activated the high-speed rail mode. That is, when the terminal device turns on the high-speed rail mode, the terminal device can receive the route information pushed by the cloud server, where the pushed route information can be a route information set, and the route information set includes the route information of multiple routes. The route includes the movement route of the terminal device.

Exemplarily, as shown in Figure 4, taking high-speed rail station A as the starting point, there are a total of 3 routes, namely the first high-speed rail line from high-speed rail station A to high-speed rail station B, and the second high-speed rail line from high-speed rail station A to high-speed rail station C. Route and the third highest railway line from HSR Station A to HSR Station D. There are three areas on the first high-speed railway line. According to the direction from high-speed railway station A to high-speed railway station B, the switching order of the areas is: first area → second area → third area. There are four areas on the second high-speed railway line. According to the direction from high-speed railway station A to high-speed railway station C, the switching order of the areas is: first area → second area → fourth area → fifth area. There are four areas on the third high-speed railway line. According to the direction from high-speed railway station A to high-speed railway station D, the switching order of the areas is: first area → second area → fourth area → sixth area.

Based on the high-speed railway line shown in Figure 4, when the terminal device is located at high-speed railway station A and the high-speed railway mode is turned on, the path information pushed by the cloud server includes the first high-speed railway line, the second high-speed railway line, and the high-speed railway line for the time being. Route information of the third highest railway line. Among them, the first high-speed railway line is the mobile route of the terminal equipment.

In an example, the corresponding path information may be pre-stored in the terminal device. After the terminal device turns on the high-speed rail mode, it can find the corresponding route information locally based on its location. Wherein, the path information stored by the terminal device may also be a path information collection.

For example, based on the high-speed railway line shown in FIG. 4, the terminal device detects that the terminal device is located at high-speed railway station A, and can search for the path information set corresponding to high-speed railway station A from the locally stored path information. Wherein, the path information set corresponding to high-speed railway station A may include path information of multiple high-speed railway lines starting from high-speed railway station A, for example, including path information of the first high-speed railway line, the second high-speed railway line, and the third high-speed railway line. Among them, the first high-speed railway line is the mobile route of the terminal equipment.

In an example, the terminal device may request path information from the network side device. For example, after the terminal device turns on the high-speed rail mode, the terminal device is allowed to read the short message notification sent by the railway service center, so as to obtain the itinerary information of the terminal device, including the train number. The terminal device sends a request letter carrying the vehicle number to the cloud server to request the cloud server to issue path information corresponding to the vehicle number.

For example, the high-speed railway line corresponding to the train number obtained by the terminal device is the first high-speed railway line, and the cloud server issues path information of the first high-speed railway line to the terminal device, so that the terminal device can obtain an accurate high-speed railway line.

Next, this application describes a communication method provided by this application with reference to FIG. 5.

In Figure 5, the first network device is the network side device of the first telecommunications operator, and the second network device is the network side device of the second telecommunications operator. The terminal device may perform user plane data interaction with the first network device through the first SIM card, and may also perform user plane data interaction with the second network device through the second SIM card. The first network device and the second network device can be respectively connected to the Internet to exchange user plane data therewith. The internet, also known as the international network, refers to the huge network that is connected between networks. These networks are connected by a set of common protocols to form a logically single huge international network.

As shown in Figure 5, after the user turns on, the two SIM cards of the dual-card dual-standby terminal device are registered and entered into the communication system of the corresponding telecom operator at the same time. After the terminal device turns on the high-speed rail mode, the terminal device will determine the location and determine Which area it belongs to under the current location, which in turn triggers the handover of the telecom operator. In an example, the terminal device travels from the first area to the second area, triggering the switching of the primary and secondary SIM cards, and the primary card of the terminal device is switched from the first SIM card to the second SIM card. Before the switching, the terminal device is provided by the first telecommunications operator corresponding to the first SIM card to provide data communication services. When the location of the terminal device changes and triggers area switching, the terminal device switches the main card from the first SIM card to the second SIM card. After the handover is completed, the terminal device is provided with data communication services by the second telecommunication operator corresponding to the second SIM card.

Specifically, the process includes the following steps:

S201: The first SIM card registers into the network, and establishes a first communication connection. The terminal device starts to use the first SIM card, and the first SIM card requests access to the first base station of the corresponding first telecommunications operator system based on the network authentication data, and obtains the right to allow communication through the first telecommunications operator. The terminal device establishes a first communication connection with the first network device through the first SIM card.

S202: The second SIM card registers into the network, and establishes a second communication connection. The terminal device starts to use the second SIM card, and the second SIM card requests to access the corresponding second base station of the second telecommunication operator system based on the network authentication data, and obtains the right to allow communication through the second telecommunication operator. The terminal device establishes a second communication connection with the second network device through the second SIM card.

After both steps S201 and S202 are completed, the terminal device is now in a dual-card dual-standby state. Figure 6 is a schematic diagram of a terminal device display interface. In an example, as shown in FIG. 6, after the terminal device equipped with dual SIM cards is turned on, the terminal device displays an interface 60, and the top status bar can display the signal indicators of two telecom operators, that is, China Mobile The signal identification 601 and the China Unicom signal identification 602 indicate that the two SIM cards of the terminal device have been logged into the communication network of the respective telecommunication operator and can perform communication services.

S203: Turn on the high-speed rail mode. The terminal device turns on the high-speed rail mode, which can be manually turned on by the user, or the terminal device detects that it is currently in a high-speed rail section or detects that the current speed exceeds 200km/h, and then automatically turns on the high-speed rail mode. After the high-speed rail mode is turned on, the terminal device can perform the steps described in S204-S208.

S204: Determine the location. After the terminal device turns on the high-speed rail mode, the terminal device can continuously or intermittently determine the location information of the terminal device. The method for determining the position can be satellite positioning, base station positioning, WIFI positioning, etc., such as GPS positioning, or the location can be determined through the PLMN, MAC, and CELL ID of the terminal device.

S205, user plane data (first SIM card). The terminal equipment chooses to use the first SIM card as the main card for communication services in the current area, and the first telecommunication operator provides communication services. There is a user interface between the terminal equipment and the first network equipment, and between the first network equipment and the Internet. Data interaction.

S206, the area is changed. The terminal device compares the current location information with the location information in the area identifier in the "high-speed railway section-telecom operator" mapping table pushed by the cloud server. When it is determined that the terminal device previously located in the first area is currently located in the second area, Or when the distance from the second area is less than the first distance value, the terminal device initiates SIM card switching. Among them, the first distance value can be a shorter distance from the second area, such as 1KM; in addition, the first distance value can be 0 or a negative distance. When the distance value is 0 or a negative distance, it means that the terminal device has left the first area and entered The second area. When the area changes, the terminal device triggers an instruction to switch the SIM card.

S207: Switch the primary and secondary SIM cards. For example, when the terminal device detects that the location is traveling from the first area to the second area, the mapping table shows that the communication network of the first telecommunication operator should be switched to the communication network of the second telecommunication operator with better communication quality. The terminal device initiates a primary and secondary SIM card switching, and the primary card is switched from the first SIM card to the second SIM card. The essence of switching on the hardware side of the terminal device may be that the radio frequency TX is changed from being connected to the first SIM card with a higher priority than the second SIM card to that the radio frequency TX is connected to the second SIM card with a higher priority than the first SIM card. The terminal device is changed from the first communication connection to carry the data service to the second communication connection to carry the data service. At this time, the first telecommunication operator preferentially provides data communication services to the terminal equipment, and the second telecommunication operator preferentially provides data communication services to the terminal equipment.

Before the terminal device initiates the switching of the primary and secondary SIM cards, it can detect whether the terminal device has an ongoing voice service. If not, the terminal device initiates a handover. If the terminal device is performing a voice service, it needs to wait for the end of the call before the terminal device initiates the switch between primary and secondary SIM cards.

S208, user plane data (second SIM card). The terminal device chooses to use the second SIM card as the main card for communication services in the current area, and the second telecommunication operator provides communication services. There is a user interface between the terminal device and the second network device, and between the second network device and the Internet. Data interaction.

In one embodiment, the quality of the communication service provided by the second telecommunication operator in the second area is better than the quality of the communication service provided by the first telecommunication operator in the second area.

This application provides a communication method and device in a high-speed mobile scenario. In one example, the terminal device has a high-speed rail mode, and the user can manually or automatically turn on the high-speed rail mode of the terminal device. When the terminal device is in the high-speed rail mode, the high-speed rail function of the terminal device is turned on, so that the strategy of switching between primary and secondary SIM cards in the high-speed mobile scenario provided by the high-speed rail mode can be realized.

Figure 7 exemplarily shows a schematic diagram of a terminal device display interface. As shown in (a) in Figure 7, the terminal device can display a menu bar for high-speed rail mode in the setting interface, and the setting interface can also include conventional setting menu bars, such as menu bars for Bluetooth, flight mode, wireless LAN, sound, etc. . Or, as shown in Figure 4(b), the terminal device can display the high-speed rail mode icon in the shortcut control interface. The shortcut control interface can quickly call up the interface of commonly used function control icons through user-specific gesture operations. Gesture operations can be swiping down from the top of the screen of the terminal device, or swiping up from the bottom of the screen of the terminal device, and there is no restriction here. The shortcut control interface may include icons for conventional functions to implement shortcut operations of related functions, such as Bluetooth, flight mode, wireless local area network, brightness, sound, flashlight, lock screen and other icons.

When the terminal device detects the user's related operations on the setting interface or the quick control interface, for example, the user touches or clicks the "high-speed rail mode" icon on the setting interface or the quick control interface, etc., and detects that the user needs to turn on the high-speed rail mode, the terminal device can Ask the user through a pop-up window whether to open the high-speed rail mode. For example, the terminal device detects that the switch key of the high-speed rail mode menu bar as shown in Figure 7 (a) is turned on, or detects that the high-speed rail mode icon is lit as shown in Figure 4 (b), and the terminal device A pop-up window as shown in (c) in Figure 7 can be displayed, displaying the inquiry message "Are you sure to turn on the high-speed rail mode?", and the selection keys for "Yes" and "No". When the terminal device detects that the user clicks "Yes", the terminal device turns on the high-speed rail mode.

In an example, the terminal device may also display a menu bar and/or an icon for speed detection to provide a function of automatically detecting the speed. Figure 8 exemplarily shows a schematic diagram of another terminal device display interface. As shown in Figure 8 (a), the terminal device can display a menu bar for speed detection in the setting interface. When the terminal device detects that the user is in this When the switch key of the menu bar of the speed detection is turned on on the setting interface, the terminal device can start to detect the moving speed of the terminal device in real time. Alternatively, as shown in (b) of Figure 8, the terminal device may display an icon for speed detection in the shortcut control interface. When the terminal device detects that the user selects the speed detection icon on the quick control interface, the terminal device can start to detect the moving speed of the terminal device in real time.

Exemplarily, the terminal device can measure the moving speed in real time through a built-in positioning system, such as global positioning system (GPS), BeiDou navigation satellite system (BDS), GLONASS satellite Navigation system, Galileo satellite navigation system, etc. Or, when the terminal device is located on the high-speed rail, it can use short-range communication technologies, such as Bluetooth (Bluetooth), wireless fidelity (WiFi), near field communication (NFC), Hilink protocol, optical fidelity Technology (light fidelity, LiFi), etc. establish a short-distance communication connection with the high-speed rail, and then obtain the speed information shared by the high-speed rail, and determine the moving speed of the terminal device. The terminal device can also determine its location based on the PLMN, TAC number, CELL ID and other base station positioning.

When the terminal device detects that the moving speed of the terminal device exceeds the first speed and continues to exceed the first time, it can display the inquiry message whether to open the high-speed rail mode through a pop-up window, which is used to ask the user whether to open the high-speed rail mode. Here, the first The speed can be 200Km/h, and the first time can be 2 seconds. For example, as shown in Figure 8(c), when the terminal device detects that the speed reaches 200Km/h, the pop-up window displays the inquiry message "The current speed reaches 200Km/h, do you want to turn on the high-speed rail mode?", as well as "Yes" and " No" selection key. When the terminal device detects that the user clicks "Yes", the terminal device turns on the high-speed rail mode.

Or, when the terminal device detects that the moving speed exceeds the first speed per hour and continues to exceed the first time, the terminal device can also automatically turn on the high-speed rail mode without asking the user through a pop-up window.

Optionally, after the terminal device turns on the high-speed rail mode, if it detects that the speed of movement is lower than the second threshold (the second threshold may be less than the first threshold), and continues to exceed the second time, the terminal device can automatically turn off the high-speed rail mode, or pass A pop-up window asks the user whether to turn off the high-speed rail mode.

In one embodiment, when the terminal device in the high-speed rail mode performs the primary and secondary SIM card switching operation, an inquiry interface can be popped up on the terminal device, as shown in Figure 9, a warm prompt inquiry pop-up window can be popped up, and the inquiry sentence can be In Figure 9(a), "Dear user, we have detected that you are currently in high-speed rail mode and are using China Unicom's SIM card. For a better communication experience, we suggest you switch to China Mobile's SIM card. Do you agree?" , And "Yes" and "No" options. The query sentence can also be "Dear user, we have identified that you are currently on the XX high-speed rail line. AI Big Data recommends that you switch to the XX operator's SIM card for you to experience a better communication network." Agree", and "Yes" and "No" options. The keywords in the pop-up box can present but are not limited to: high-speed rail, switch SIM card, improve experience, switch operator, AI big data and other words. When the user chooses to agree, the terminal device can switch between the primary and secondary SIM cards. If the user chooses not to agree, the terminal device does not change the current SIM card settings. In addition, you can also set the option of "Don't prompt again", and the user can choose to let the terminal device automatically switch between the primary and secondary SIM cards without being disturbed.

In an example, the terminal device can also autonomously detect the high-speed rail dedicated network. When the terminal device detects the high-speed rail dedicated network, it can automatically turn on the high-speed rail mode, or it can ask the user whether to turn on the high-speed rail mode by displaying a pop-up window. For example, when the terminal device detects the high-speed rail dedicated network, the pop-up window can display the inquiry message "I have entered the high-speed rail dedicated network, do you want to turn on the high-speed rail mode?", and the selection buttons for "Yes" and "No". When the terminal device detects that the user clicks "Yes", the terminal device turns on the high-speed rail mode.

In this application, when the terminal device turns on the high-speed rail mode, the high-speed rail function of the terminal device is turned on, and the terminal device can obtain the path information of the high-speed rail section, and then switch between the primary and secondary SIM cards based on the switching strategy provided by the high-speed rail function.

This application provides a communication method, which can be implemented based on a big data learning mechanism. FIG. 10 is a block diagram of a communication system based on big data learning provided by this application. Among them, the terminal device supports "high-speed rail mode" recognition, including but not limited to manual selection of the high-speed rail mode icon/menu, and automatic recognition through methods such as the magnetic field/acceleration sensor of the terminal device. The terminal equipment in the "high-speed rail mode" will automatically report the situation of dropped calls, dropped calls, freezes, disconnections, delays, network speeds, and telecom operators using a certain SIM card, and also reports the latitude and longitude of the terminal equipment. , TAC (tracking area code), CELL ID and other location marking information, as well as the frequent switching of telecom operators.

As shown in FIG. 10, the cloud network side device of the communication system may include a cloud storage server, a cloud communication server, and a cloud policy generation server.

Among them, the cloud storage server can be used to obtain and store a large number of communication quality reports reported by multiple terminal devices. Among them, each communication quality report contains multiple pieces of information, which can include the drop rate, drop rate, stall rate, disconnect rate, delay time (ms), network rate (mb) corresponding to the SIM card in the terminal device. /s) and other call quality information, location marking information such as latitude and longitude, TAC (tracking area code), CELL ID, etc., as well as the frequent switching of telecom operators, the corresponding telecom operator identification, etc. Mass can refer to the number of millions, tens of millions and above.

The cloud policy generation server allows access to the cloud storage server and obtains relevant data reported by the terminal device to the cloud storage server. The cloud strategy generation server can be based on the big data learning mechanism, based on the location labeling information such as latitude and longitude, and perform filtering, clustering and other big data learning calculation methods according to the abnormal information reported by the terminal equipment, and it is concluded that the optimal communication can be provided on the high-speed rail path. Experienced telecom operators (differentiating standards), and then import the generated optimal "telecommunications operator + network standard" logo into the cloud communication server, and many "telecommunications operators + network standard" logos form a "high railway line-telecom operator" mapping table. That is, the cloud server generates the "high-speed railway line-telecom operator" mapping table in the area according to the communication quality parameters in the communication quality report reported by the terminal equipment in the area. The cloud strategy generation server will generate a mapping table according to each high-speed railway line, and constantly update the "high-speed railway line-telecom operator" mapping table based on new communication information. Wherein, the mapping table includes the identities of multiple regions and the identities of telecommunication operators corresponding to each of the multiple regions. The area information contains the positioning data of each point in the area. In another embodiment, in the mapping table, a telecom operator corresponding to an area may provide a communication service with a communication quality higher than a first threshold in the area, and the first threshold may be a medium corresponding to a good communication service. In terms of comprehensive communication quality parameters, the communication quality above the first threshold is all at an excellent level, which is not much different from the user experience. On top of this, other parameters can be used to select more suitable telecom operators. The specific parameters and the first threshold can be adjusted according to the actual situation, and there is no limitation here.

The cloud communication server is used to push the "high-speed rail line-telecom operator" mapping table (the first mapping table) to the terminal equipment that has activated the high-speed rail mode. The "high-speed rail line-telecom operator" mapping table can include the most recent road section where the terminal device is located. Optimize the identification information of "telecommunications operator + network standard".

Specifically, a communication method may be as shown in FIG. 11, and the specific steps of the method include:

S301, the user turns on the high-speed rail mode. The user turns on the high-speed rail mode on the terminal device by manually turning it on, or it may be set to trigger the automatic turning on when the terminal device detects relevant information.

S302: Log in to the cloud storage server. After the terminal device turns on the high-speed rail mode, it logs in to the cloud storage server with its ID.

S303: Log in to the cloud communication server. After the terminal device turns on the high-speed rail mode, it logs in to the cloud communication server with its ID.

S304: Send location information and communication quality information. The terminal device sends location information and communication quality information to the cloud storage server, where the information described here refers to the content of each information sent by each terminal device, which may include the current SIM card’s corresponding drop rate, drop rate, Call quality parameters such as stall rate, disconnection rate, delay time (ms), network rate (mb/s), and corresponding location information such as telecom operator, latitude and longitude, TAC (tracking area code), CELL ID, etc., And the frequent handover of telecom operators, etc. The frequent handover of telecom operators here can be understood as the number of handovers of telecom operators in the first time. The first time can be 30 seconds, 1 minute, or 2 minutes, depending on the situation. It is understandable that there will be a large number of terminal devices that turn on the high-speed rail mode to send information to the cloud storage.

S305. Receive and store location information and communication quality information. The cloud storage server accepts and stores location information and communication quality information sent by a large number of terminal devices. It is understandable that among the large amount of information collected by the cloud storage server, multiple pieces of information are collected for each high-speed railway line. For example, if the cloud storage server can receive the information reported by the terminal device that ends at high-speed rail station B, the information collected by the cloud storage server includes information for each high-speed rail route that ends at high-speed rail station B.

S306. Send location information and communication quality information. The cloud storage server sends the collected location information and communication quality information to the cloud strategy generation server.

S307. Generate a first mapping table. After the cloud strategy generation server receives the information sent by the cloud storage server, it can use the big data learning mechanism to generate the identification information of the "telecom operator + network standard" that can provide the best communication experience on this section of the high-speed rail path, forming a "high-speed rail line" -Telecom operators" mapping table.

Specifically, the cloud strategy generation server uses a big data learning mechanism, takes the communication quality information collected by the cloud storage server as input, based on the location labeling information such as latitude and longitude, and performs filtering and clustering calculations based on the communication quality information reported by the terminal device to generate The identification information of the “telecom operator + network standard” that can provide the best communication experience on this section of the high-speed rail path, forming a mapping table corresponding to the optimal telecom operator/network standard for each high-speed rail path segment, that is, "high-speed rail line-telecom operation" Quotient" mapping table.

It is understandable that the cloud strategy generation server can divide the acquired large amount of handover information to obtain the communication information corresponding to each high-speed railway line. Then for each high-speed railway line, the big data learning mechanism is used to calculate the communication information, and the telecommunication operator switching information of each high-speed railway line is generated or optimized.

S308. Send the first mapping table. The cloud strategy generation server sends the "high-speed railway line-telecom operator" mapping table to the cloud communication server.

S309. Send the first mapping table. The cloud communication server regularly pushes the "high-speed rail line-telecom operator" mapping table to terminal devices that have activated the high-speed rail mode. It is understandable that the cloud communication server can replace the locally stored telecommunication operator switching information corresponding to the high-speed railway line every time it receives the path information sent by the cloud strategy generation server. Then, after detecting the terminal device that has turned on the high-speed rail mode, the telecommunication operator switching information is pushed to the terminal device. Here, “regular” refers to the second time interval, which can be every 12 hours, every other day, every other week, etc. It can be adjusted according to the situation, and there is no restriction here. Regular push is to avoid the time delay caused by real-time communication and to avoid the failure of the cloud server to cause communication failure.

S310: Switch between the primary and secondary SIM cards according to the first mapping table. The terminal device with the high-speed rail mode turned on is based on the positioning information, and performs the primary and secondary SIM card switching according to the "telecommunications operator + network standard" identification message in the "high-speed railway line-telecom operator" mapping table sent by the cloud communication server.

Specifically, in the scene of high-speed rail high-speed movement, the user (carrying terminal device) manually turns on the high-speed rail mode on the terminal device or the terminal device automatically turns on the high-speed rail mode. At this time, the terminal device is in the high-speed rail mode, and the terminal device BP (baseband processor, baseband processor) Chip) The MODEM (modem) of the module obtains the residency information of the current cell, which can include PLMN (public land mobile network), TAC, CELL ID, etc., and sends it to the high-level AP (application processor, application chip) of the terminal device ) Module. After the AP module of the terminal device receives the PLMN, TAC, CELLID and other information sent by the BP module, it searches the "High Railway Line-Telecom Operator" mapping table inside the AP module. "High-speed rail line-telecom operator" mapping table refers to the mapping table corresponding to the optimal telecommunication operator/standard for each high-speed rail path segment (ie region). The mapping table is pushed to the terminal device by the cloud communication server of the network side device . According to the mapping table, the terminal device finds the corresponding telecom operator and its network standard on the current high-speed rail path segment with the best communication conditions, and switches between the primary and secondary SIM cards.

The cloud strategy generation server calculates the relevant communication information of different telecom operators based on the big data learning mechanism, and generates or optimizes the "high-speed railway line-telecom operator" mapping table. Specific methods that can be used can be clustering algorithms, regression statistical algorithms, weighted average calculations, etc., which are not limited here, and are based on being able to achieve the results to be achieved in this application.

For example, in one embodiment, the cloud strategy generation server may use a clustering algorithm, take communication quality information collected by a cloud database as input, mark information based on locations such as latitude and longitude, and perform filtering and calculation based on the communication quality information reported by the terminal device. , Generate the identification information of "telecommunications operator + network standard" that can provide the best communication experience on the high-speed rail path, and form a mapping table corresponding to the optimal telecom operator/network standard for each segment of the high-speed rail path. The cloud strategy generation server can also use a weighted average calculation method to assign different weights to different communication quality information according to the different functions required by the current scenario, and then generate a comprehensive index. For example, if the current scenario requires more bandwidth, bandwidth-related parameters If the weight of the delay is increased, and a shorter delay is required in another scenario, the weight of the delay-related parameters is increased.

Fig. 12 is a flow chart of a method for big data calculation provided by this application. As shown in Fig. 12, the specific steps include:

S401. Data extraction. The cloud strategy generation server extracts the data needed for calculation from the original database of the cloud storage server. The data can include the call drop rate, call drop rate, jam rate, and delay time (ms) corresponding to each SIM card sent by each terminal device. ), network rate (mb/s) and other communication quality information, as well as corresponding telecommunication operators, latitude and longitude, TAC (tracking area code), CELL ID and other location marking information, as well as the frequent switching of telecommunication operators.

S402. Construct a database. The cloud strategy generation server can perform data screening and build a communication quality database based on the location of the high-speed rail path. The communication quality database contains a large number of cell locations and communication quality information corresponding to each cell location, including call drop rate, call drop rate, and stall rate , Delay time (ms), network speed (mb/s), handover conditions, etc.

S403. The feature data set. After the database is constructed, the cloud strategy generation server classifies the data in the communication quality database to generate a feature data set as the input data of the clustering algorithm.

S405. Big data calculation. The cloud strategy generation server can input the characteristic data set into the clustering algorithm to generate "telecom operator + network standard" identification information.

S406, the nodes are connected in series, and the path is extracted. The cloud strategy generation server divides the node set according to the generated "telecommunications operator + network standard" identification information, looks for the connected graph in the node set, generates the minimum spanning tree (Prim algorithm) based on the undirected graph, and then selects the minimum spanning tree Extract paths and form regions, and each region corresponds to a telecom operator with the best communication quality.

S406: Output the result data set. Based on the big data calculation and sorting of the foregoing steps, the cloud strategy generation server generates a "high-speed railway line-telecom operator" mapping table.

FIG. 13 shows a schematic structural diagram of a terminal device 1300.

The terminal device 1300 may include a processor 1310, an external memory interface 1320, an internal memory 1321, a universal serial bus (USB) interface 1330, a charging management module 1340, a power management module 1341, a battery 1342, an antenna 1, and an antenna 2. , Mobile communication module 1350, wireless communication module 1360, audio module 1370, speaker 1370A, receiver 1370B, microphone 1370C, earphone jack 1370D, sensor module 1380, buttons 1390, motor 1391, indicator 1392, camera 1393, display 1394, and Subscriber identification module (subscriber identification module, SIM) card interface 1395, etc. The sensor module 1380 can include pressure sensor 1380A, gyroscope sensor 1380B, air pressure sensor 1380C, magnetic sensor 1380D, acceleration sensor 1380E, distance sensor 1380F, proximity light sensor 1380G, fingerprint sensor 1380H, temperature sensor 1380J, touch sensor 1380K, ambient light Sensor 1380L, bone conduction sensor 1380M, etc.

It is understandable that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the terminal device 1300. In other embodiments of the present application, the terminal device 1300 may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange different components. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

The processor 1310 may include one or more processing units. For example, the processor 1310 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), and an image signal processor. (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU) Wait. Among them, the different processing units may be independent devices or integrated in one or more processors.

The controller may be the nerve center and command center of the terminal device 1300. The controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching instructions and executing instructions.

A memory may also be provided in the processor 1310 to store instructions and data. In some embodiments, the memory in the processor 1310 is a cache memory. The memory can store instructions or data that have just been used or recycled by the processor 1310. If the processor 1310 needs to use the instruction or data again, it can be directly called from the memory. Repeated accesses are avoided, the waiting time of the processor 1310 is reduced, and the efficiency of the system is improved.

In some embodiments, the processor 1310 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, and a universal asynchronous transmitter/receiver (universal asynchronous) interface. receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / Or Universal Serial Bus (USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus, including a serial data line (SDA) and a serial clock line (SCL). In some embodiments, the processor 1310 may include multiple sets of I2C buses. The processor 1310 may be coupled to the touch sensor 1380K, charger, flash, camera 1393, etc., through different I2C bus interfaces. For example, the processor 1310 may couple the touch sensor 1380K through an I2C interface, so that the processor 1310 and the touch sensor 1380K communicate through an I2C bus interface to realize the touch function of the terminal device 1300.

The I2S interface can be used for audio communication. In some embodiments, the processor 1310 may include multiple sets of I2S buses. The processor 1310 may be coupled with the audio module 1370 through an I2S bus to implement communication between the processor 1310 and the audio module 1370. In some embodiments, the audio module 1370 can transmit audio signals to the wireless communication module 1360 through the I2S interface, so as to realize the function of answering calls through the Bluetooth headset.

The PCM interface can also be used for audio communication to sample, quantize and encode analog signals. In some embodiments, the audio module 1370 and the wireless communication module 1360 may be coupled through a PCM bus interface. In some embodiments, the audio module 1370 may also transmit audio signals to the wireless communication module 1360 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communication. The bus can be a two-way communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, the UART interface is generally used to connect the processor 1310 and the wireless communication module 1360. For example, the processor 1310 communicates with the Bluetooth module in the wireless communication module 1360 through the UART interface to realize the Bluetooth function. In some embodiments, the audio module 1370 may transmit audio signals to the wireless communication module 1360 through the UART interface, so as to realize the function of playing music through the Bluetooth headset.

The MIPI interface can be used to connect the processor 1310 with the display 1394, camera 1393 and other peripheral devices. The MIPI interface includes a camera serial interface (camera serial interface, CSI), a display serial interface (display serial interface, DSI), and so on. In some embodiments, the processor 1310 and the camera 1393 communicate through a CSI interface to implement the shooting function of the terminal device 1300. The processor 1310 and the display screen 1394 communicate through the DSI interface to realize the display function of the terminal device 1300.

The GPIO interface can be configured through software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface can be used to connect the processor 1310 with the camera 1393, the display screen 1394, the wireless communication module 1360, the audio module 1370, the sensor module 1380, and so on. The GPIO interface can also be configured as an I2C interface, I2S interface, UART interface, MIPI interface, etc.

The USB interface 1330 is an interface that complies with the USB standard specifications, and specifically can be a Mini USB interface, a Micro USB interface, a USB Type C interface, and so on. The USB interface 1330 can be used to connect a charger to charge the terminal device 1300, and can also be used to transfer data between the terminal device 1300 and peripheral devices. It can also be used to connect earphones and play audio through earphones. This interface can also be used to connect other electronic devices, such as AR devices.

It can be understood that the interface connection relationship between the modules illustrated in the embodiment of the present invention is merely a schematic description, and does not constitute a structural limitation of the terminal device 1300. In other embodiments of the present application, the terminal device 1300 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.

The charging management module 1340 is used to receive charging input from the charger. Among them, the charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 1340 may receive the charging input of the wired charger through the USB interface 1330. In some embodiments of wireless charging, the charging management module 1340 may receive the wireless charging input through the wireless charging coil of the terminal device 1300. While the charging management module 1340 charges the battery 1342, it can also supply power to the electronic device through the power management module 1341.

The power management module 1341 is used to connect the battery 1342, the charging management module 1340 and the processor 1310. The power management module 1341 receives input from the battery 1342 and/or the charge management module 1340, and supplies power to the processor 1310, internal memory 1321, external memory, display 1394, camera 1393, and wireless communication module 1360. The power management module 1341 can also be used to monitor battery capacity, battery cycle times, battery health status (leakage, impedance) and other parameters. In some other embodiments, the power management module 1341 may also be provided in the processor 1310. In other embodiments, the power management module 1341 and the charging management module 1340 may also be provided in the same device.

The wireless communication function of the terminal device 1300 may be implemented by the antenna 1, the antenna 2, the mobile communication module 1350, the wireless communication module 1360, the modem processor, and the baseband processor.

The antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the terminal device 1300 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna can be used in combination with a tuning switch.

The mobile communication module 1350 can provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the terminal device 1300. The mobile communication module 1350 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like. The mobile communication module 1350 can receive electromagnetic waves from the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modem processor for demodulation. The mobile communication module 1350 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic wave radiation via the antenna 1. In some embodiments, at least part of the functional modules of the mobile communication module 1350 may be provided in the processor 1310. In some embodiments, at least part of the functional modules of the mobile communication module 1350 and at least part of the modules of the processor 1310 may be provided in the same device.

The modem processor may include a modulator and a demodulator. Among them, the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to a speaker 1370A, a receiver 1370B, etc.), or displays an image or video through a display screen 1394. In some embodiments, the modem processor may be an independent device. In other embodiments, the modem processor may be independent of the processor 1310 and be provided in the same device as the mobile communication module 1350 or other functional modules.

The wireless communication module 1360 can provide applications on the terminal device 1300, including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), and global navigation satellites. System (global navigation satellite system, GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 1360 may be one or more devices integrating at least one communication processing module. The wireless communication module 1360 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 1310. The wireless communication module 1360 may also receive a signal to be sent from the processor 1310, perform frequency modulation, amplify, and convert it into electromagnetic waves to radiate through the antenna 2.

In some embodiments, the antenna 1 of the terminal device 1300 is coupled with the mobile communication module 1350, and the antenna 2 is coupled with the wireless communication module 1360, so that the terminal device 1300 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc. The GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite-based augmentation systems (SBAS).

The terminal device 1300 implements a display function through a GPU, a display screen 1394, and an application processor. GPU is a microprocessor for image processing, which connects the display 1394 and the application processor. The GPU is used to perform mathematical and geometric calculations and is used for graphics rendering. The processor 1310 may include one or more GPUs that execute program instructions to generate or change display information.

The display 1394 is used to display images, videos, etc. The display screen 1394 includes a display panel. The display panel can use liquid crystal display (LCD), organic light-emitting diode (OLED), active matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode). emitting diode, AMOLED, flexible light-emitting diode (FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (QLED), etc. In some embodiments, the terminal device 1300 may include one or N display screens 1394, and N is a positive integer greater than one.

The terminal device 1300 can realize the shooting function through an ISP, a camera 1393, a video codec, a GPU, a display screen 1394, and an application processor.

The ISP is used to process the data fed back from the camera 1393. For example, when taking a picture, the shutter is opened, the light is transmitted to the photosensitive element of the camera through the lens, the light signal is converted into an electrical signal, and the photosensitive element of the camera transmits the electrical signal to the ISP for processing and is converted into an image visible to the naked eye. ISP can also optimize the image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, the ISP may be provided in the camera 1393.

The camera 1393 is used to capture still images or videos. The object generates an optical image through the lens and is projected to the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transfers the electrical signal to the ISP to convert it into a digital image signal. ISP outputs digital image signals to DSP for processing. DSP converts digital image signals into standard RGB, YUV and other formats of image signals. In some embodiments, the terminal device 1300 may include one or N cameras 1393, and N is a positive integer greater than one.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the terminal device 1300 selects the frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.

Video codecs are used to compress or decompress digital video. The terminal device 1300 may support one or more video codecs. In this way, the terminal device 1300 can play or record videos in multiple encoding formats, such as: moving picture experts group (MPEG) 1, MPEG2, MPEG3, MPEG4, and so on.

NPU is a neural-network (NN) computing processor. By drawing on the structure of biological neural networks, for example, the transfer mode between human brain neurons, it can quickly process input information, and it can also continuously self-learn. Through the NPU, applications such as intelligent cognition of the terminal device 1300 can be realized, such as image recognition, face recognition, voice recognition, text understanding, and so on.

The external memory interface 1320 may be used to connect an external memory card, such as a Micro SD card, so as to expand the storage capacity of the terminal device 1300. The external memory card communicates with the processor 1310 through the external memory interface 1320 to realize the data storage function. For example, save music, video and other files in an external memory card.

The internal memory 1321 may be used to store computer executable program code, where the executable program code includes instructions. The processor 1310 executes various functional applications and data processing of the terminal device 1300 by running instructions stored in the internal memory 1321. The internal memory 1321 may include a program storage area and a data storage area. Among them, the storage program area can store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required by at least one function, and the like. The data storage area can store data (such as audio data, phone book, etc.) created during the use of the terminal device 1300. In addition, the internal memory 1321 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like.

The terminal device 1300 can implement audio functions through an audio module 1370, a speaker 1370A, a receiver 1370B, a microphone 1370C, a headphone interface 1370D, and an application processor. For example, music playback, recording, etc.

The audio module 1370 is used to convert digital audio information into an analog audio signal for output, and also used to convert an analog audio input into a digital audio signal. The audio module 1370 can also be used to encode and decode audio signals. In some embodiments, the audio module 1370 may be provided in the processor 1310, or part of the functional modules of the audio module 1370 may be provided in the processor 1310.

The speaker 1370A, also called "speaker", is used to convert audio electrical signals into sound signals. The terminal device 1300 can listen to music through the speaker 1370A, or listen to a hands-free call.

The receiver 1370B, also called "earpiece", is used to convert audio electrical signals into sound signals. When the terminal device 1300 answers a call or voice message, it can receive the voice by bringing the receiver 1370B close to the human ear.

Microphone 1370C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or sending a voice message, the user can make a sound by approaching the microphone 1370C through the human mouth, and input the sound signal into the microphone 1370C. The terminal device 1300 may be provided with at least one microphone 1370C. In other embodiments, the terminal device 1300 may be provided with two microphones 1370C, which can implement noise reduction functions in addition to collecting sound signals. In other embodiments, the terminal device 1300 may also be provided with three, four or more microphones 1370C to collect sound signals, reduce noise, identify sound sources, and realize directional recording functions.

The earphone interface 1370D is used to connect wired earphones. The earphone interface 1370D can be a USB interface 1330, or a 3.5mm open mobile terminal platform (OMTP) standard interface, or a cellular telecommunications industry association of the USA (CTIA) standard interface.

The pressure sensor 1380A is used to sense the pressure signal and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 1380A may be disposed on the display screen 1394. There are many types of pressure sensors 1380A, such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors and so on. The capacitive pressure sensor may include at least two parallel plates with conductive materials. When a force is applied to the pressure sensor 1380A, the capacitance between the electrodes changes. The terminal device 1300 determines the intensity of the pressure according to the change in capacitance. When a touch operation acts on the display screen 1394, the terminal device 1300 detects the intensity of the touch operation according to the pressure sensor 1380A. The terminal device 1300 may also calculate the touched position according to the detection signal of the pressure sensor 1380A. In some embodiments, touch operations that act on the same touch position but have different touch operation strengths may correspond to different operation instructions. For example: when a touch operation whose intensity of the touch operation is less than the first pressure threshold is applied to the short message application icon, an instruction to view the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, an instruction to create a new short message is executed.

The gyro sensor 1380B may be used to determine the motion posture of the terminal device 1300. In some embodiments, the angular velocity of the terminal device 1300 around three axes (ie, x, y, and z axes) can be determined by the gyroscope sensor 1380B. The gyro sensor 1380B can be used for image stabilization. Exemplarily, when the shutter is pressed, the gyro sensor 1380B detects the shaking angle of the terminal device 1300, and calculates the distance to be compensated by the lens module according to the angle, and allows the lens to counteract the shaking of the terminal device 1300 through reverse movement to achieve anti-shake. The gyro sensor 1380B can also be used for navigation and somatosensory game scenes.

The air pressure sensor 1380C is used to measure air pressure. In some embodiments, the terminal device 1300 calculates the altitude based on the air pressure value measured by the air pressure sensor 1380C to assist positioning and navigation.

The magnetic sensor 1380D includes a Hall sensor. The terminal device 1300 may use the magnetic sensor 1380D to detect the opening and closing of the flip holster. In some embodiments, when the terminal device 1300 is a flip machine, the terminal device 1300 can detect the opening and closing of the flip according to the magnetic sensor 1380D. Furthermore, according to the detected opening and closing state of the leather case or the opening and closing state of the flip cover, features such as automatic unlocking of the flip cover are set.

The acceleration sensor 1380E can detect the magnitude of the acceleration of the terminal device 1300 in various directions (generally three axes). When the terminal device 1300 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of electronic devices, and apply to applications such as horizontal and vertical screen switching, pedometers, etc.

Distance sensor 1380F, used to measure distance. The terminal device 1300 can measure the distance by infrared or laser. In some embodiments, when shooting a scene, the terminal device 1300 may use the distance sensor 1380F to measure the distance to achieve fast focusing.

The proximity light sensor 1380G may include, for example, a light emitting diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The terminal device 1300 emits infrared light to the outside through the light emitting diode. The terminal device 1300 uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the terminal device 1300. When insufficient reflected light is detected, the terminal device 1300 may determine that there is no object near the terminal device 1300. The terminal device 1300 can use the proximity light sensor 1380G to detect that the user holds the terminal device 1300 close to the ear to talk, so as to automatically turn off the screen to save power. Proximity light sensor 1380G can also be used in leather case mode, pocket mode automatically unlocks and locks the screen.

The ambient light sensor 1380L is used to sense the brightness of the ambient light. The terminal device 1300 can adaptively adjust the brightness of the display screen 1394 according to the perceived brightness of the ambient light. The ambient light sensor 1380L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 1380L can also cooperate with the proximity light sensor 1380G to detect whether the terminal device 1300 is in the pocket to prevent accidental touch.

The fingerprint sensor 1380H is used to collect fingerprints. The terminal device 1300 can use the collected fingerprint characteristics to realize fingerprint unlocking, access application locks, fingerprint photographs, fingerprint answering calls, and so on.

The temperature sensor 1380J is used to detect temperature. In some embodiments, the terminal device 1300 uses the temperature detected by the temperature sensor 1380J to execute a temperature processing strategy. For example, when the temperature reported by the temperature sensor 1380J exceeds the threshold, the terminal device 1300 performs a reduction in the performance of the processor located near the temperature sensor 1380J, so as to reduce power consumption and implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the terminal device 1300 heats the battery 1342 to avoid abnormal shutdown of the terminal device 1300 due to low temperature. In some other embodiments, when the temperature is lower than another threshold, the terminal device 1300 boosts the output voltage of the battery 1342 to avoid abnormal shutdown caused by low temperature.

Touch sensor 1380K, also called "touch panel". The touch sensor 1380K can be set on the display screen 1394, and the touch screen is composed of the touch sensor 1380K and the display screen 1394, which is also called a "touch screen". The touch sensor 1380K is used to detect touch operations acting on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. The visual output related to the touch operation can be provided through the display screen 1394. In other embodiments, the touch sensor 1380K may also be disposed on the surface of the terminal device 1300, which is different from the position of the display screen 1394.

The bone conduction sensor 1380M can acquire vibration signals. In some embodiments, the bone conduction sensor 1380M can obtain the vibration signal of the vibrating bone mass of the human voice. The bone conduction sensor 1380M can also contact the human pulse and receive the blood pressure pulse signal. In some embodiments, the bone conduction sensor 1380M may also be provided in the earphone, combined with the bone conduction earphone. The audio module 1370 can parse the voice signal based on the vibration signal of the vibrating bone block of the voice obtained by the bone conduction sensor 1380M, and realize the voice function. The application processor may analyze the heart rate information based on the blood pressure beating signal obtained by the bone conduction sensor 1380M, and realize the heart rate detection function.

The button 1390 includes a power button, a volume button, and so on. The button 1390 may be a mechanical button. It can also be a touch button. The terminal device 1300 may receive key input, and generate key signal input related to user settings and function control of the terminal device 1300.

The motor 1391 can generate vibration prompts. The motor 1391 can be used for incoming call vibration notification, and can also be used for touch vibration feedback. For example, touch operations applied to different applications (such as photographing, audio playback, etc.) can correspond to different vibration feedback effects. Acting on touch operations in different areas of the display screen 1394, the motor 1391 can also correspond to different vibration feedback effects. Different application scenarios (for example: time reminding, receiving information, alarm clock, games, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.

The indicator 1392 can be an indicator light, which can be used to indicate the charging status, power change, and can also be used to indicate messages, missed calls, notifications, etc.

The SIM card interface 1395 is used to connect to the SIM card. The SIM card can be inserted into the SIM card interface 1395 or pulled out from the SIM card interface 1395 to achieve contact and separation with the terminal device 1300. The terminal device 1300 may support 1 or N SIM card interfaces, and N is a positive integer greater than 1. The SIM card interface 1395 can support Nano SIM cards, Micro SIM cards, SIM cards, etc. The same SIM card interface 1395 can insert multiple cards at the same time. The types of the multiple cards can be the same or different. The SIM card interface 1395 can also be compatible with different types of SIM cards. The SIM card interface 1395 can also be compatible with external memory cards. The terminal device 1300 interacts with the network through the SIM card to implement functions such as call and data communication. In some embodiments, the terminal device 1300 adopts an eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the terminal device 1300 and cannot be separated from the terminal device 1300.

The software system of the terminal device 1300 may adopt a layered architecture, an event-driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture. The embodiment of the present invention takes an Android system with a layered architecture as an example to exemplarily illustrate the software structure of the terminal device 1300.

FIG. 14 is a software structure block diagram of a terminal device 1300 according to an embodiment of the present application.

The layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Communication between layers through software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, the application layer, the application framework layer, the Android runtime and system library, and the kernel layer.

The application layer can include a series of application packages.

As shown in Figure 14, the application package may include SIM card management, camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, SMS and other applications.

The application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer. The application framework layer includes some predefined functions.

As shown in Figure 14, the application framework layer can include a window manager, a content provider, a view system, a phone manager, a resource manager, and a notification manager.

The window manager is used to manage window programs. The window manager can obtain the size of the display screen, determine whether there is a status bar, lock the screen, take a screenshot, etc.

The content provider is used to store and retrieve data and make these data accessible to applications. The data may include videos, images, audios, phone calls made and received, browsing history and bookmarks, phone book, etc.

The view system includes visual controls, such as controls that display text, controls that display pictures, and so on. The view system can be used to build applications. The display interface can be composed of one or more views. For example, a display interface that includes a short message notification icon may include a view that displays text and a view that displays pictures.

The phone manager is used to provide the communication function of the terminal device 1300. For example, the management of the call status (including connecting, hanging up, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.

The notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages, and it can automatically disappear after a short stay without user interaction. For example, the notification manager is used to notify download completion, message reminders, and so on. The notification manager can also be a notification that appears in the status bar at the top of the system in the form of a chart or a scroll bar text, such as a notification of an application running in the background, or a notification that appears on the screen in the form of a dialog window. For example, text messages are prompted in the status bar, prompt sounds, electronic devices vibrate, and indicator lights flash.

Android Runtime includes core libraries and virtual machines. Android runtime is responsible for the scheduling and management of the Android system.

The core library consists of two parts: one part is the function functions that the java language needs to call, and the other part is the core library of Android.

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

The system library can include multiple functional modules. For example: surface manager (surface manager), media library (Media Libraries), three-dimensional graphics processing library (for example: OpenGL ES), 2D graphics engine (for example: SGL), etc.

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

The media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files. The media library can support multiple audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

The 3D graphics processing library is used to implement 3D graphics drawing, image rendering, synthesis, and layer processing.

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

The kernel layer is the layer between hardware and software. The kernel layer contains at least display driver, camera driver, audio driver, and sensor driver.

FIG. 15 shows a cloud server 1500 provided by an embodiment of the present application. As shown in FIG. 15, the cloud server 1500 may include: one or more processors 1501, a memory 1502, a communication interface 1503, a transmitter 1505, a receiver 1506, a coupler 1507, and an antenna 1508. These components can be connected via a bus 1504 or other types. FIG. 15 uses a bus connection as an example. among them:

The communication interface 1503 may be used for the cloud server 1500 to communicate with other communication devices, such as terminal devices or other network devices. Specifically, the terminal device may be the terminal device 1300 shown in FIG. 13. Specifically, the communication interface 1503 may be a long-term evolution (LTE) (4G) communication interface, and may also be a 5G or future new air interface communication interface. Not limited to a wireless communication interface, the cloud server 1500 may also be configured with a wired communication interface 1503 to support wired communication. For example, a backhaul link between a cloud server 1500 and the server may be a wired communication connection.

The transmitter 1505 may be used to transmit and process the signal output by the processor 1501, such as signal modulation. The receiver 1506 may be used to receive and process the mobile communication signal received by the antenna 1508. For example, signal demodulation. In some embodiments of the present application, the transmitter 1505 and the receiver 1506 can be regarded as a wireless modem, forming a communication device. In the cloud server 1500, the number of the transmitter 1505 and the receiver 1506 may each be one or more. The antenna 1508 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line. The coupler 1507 can be used to divide the mobile communication signal into multiple channels and distribute them to multiple receivers 1506.

The memory 1502 is coupled with the processor 1501, and is used to store various software programs and/or multiple sets of instructions. Specifically, the memory 1502 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices. The memory 1502 may store an operating system (hereinafter referred to as the system), such as embedded operating systems such as uCOS, VxWorks, RTLinux, and so on. The memory 1502 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.

The processor 1501 may be used to execute computer programs. The processor 1501 may include at least one of the following types: general central processing unit (Central Processing Unit, CPU), digital signal processor (Digital Signal Processor, DSP), microprocessor, application-specific integrated circuit (Application-Specific Integrated Circuit) Integrated Circuit, ASIC), Microcontroller Unit (MCU), Field Programmable Gate Array (Field Programmable Gate Array, FPGA), or an integrated circuit used to implement logic operations. For example, the processor 1501 may be a single-CPU processor or a multi-CPU processor. The at least one processor may be integrated in one chip or located on multiple different chips.

In the embodiment of the present application, the processor 1501 may be used to read and execute computer-readable instructions. Specifically, the processor 1501 may be used to call a program stored in the memory 1502, such as the implementation program of the method for generating a mapping table provided by one or more embodiments of the present application on the cloud server 1500 side, and execute the instructions contained in the program .

It should be noted that the cloud server 1500 shown in FIG. 15 is only an implementation manner of the embodiment of the present application. In actual applications, the cloud server 1500 may also include more or fewer components, which is not limited here.

The following describes the software structure of a cloud server provided by an embodiment of the present application. As shown in Figure 16:

The cloud server 1600 includes a processing module 1601, a storage module 1602, and a communication module 1603. The processing module 1601, the storage module 1602, and the communication module 16036 are connected by a communication bus or wirelessly.

The processing module 1601 may include at least one of the following types: general-purpose central processing unit (Central Processing Unit, CPU), digital signal processor (Digital Signal Processor, DSP), microprocessor, application-specific integrated circuit (Application-Specific Integrated Circuit) Integrated Circuit, ASIC), Microcontroller Unit (MCU), Field Programmable Gate Array (Field Programmable Gate Array, FPGA), or an integrated circuit used to implement logic operations. For example, the processing module 1601 may be a single-CPU processor or a multi-CPU processor. The at least one processor may be integrated in one chip or located on multiple different chips.

The storage module 1602 may include one or more memories, and the memories may be devices for storing programs or data in one or more devices or circuits. The storage unit 1602 may exist independently and is connected to the processing module 1601 through a communication bus. The storage module may also be integrated with the processing module 1601, for example, integrated in a chip. The storage module 1602 can store computer execution instructions for executing the technical solutions of the embodiments of the present application, and the processing module 1601 controls the execution. Various types of calculation execution instructions that are executed can also be regarded as driver programs of the processing module 1601. For example, the processing module 1601 is configured to execute the computer-executable instructions stored in the storage module 1602, so as to implement the method flow in the foregoing embodiment of the present application.

The communication module 1603 may be a device with a transceiving function, and is used to communicate with other terminal equipment, other network equipment, or a communication network. The communication module 1603 can be used to send and receive information under the control of the processing module 1601, including transmitting the received information to the processing module 1601 for processing, and then sending the information transmitted by the processing module 1601 to other communication devices. Generally, the communication module 1603 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, an LNA (low noise amplifier, low noise amplifier), a duplexer, and the like. In addition, the communication module 1603 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to GSM (global system of mobile communication, global system for mobile communication), GPRS (general packet radio service, general packet radio service), CDMA (code division multiple access) , Code division multiple access), WCDMA (wideband code division multiple access, wideband code division multiple access), LTE (long term evolution), email, SMS (short messaging service, short message service), short-distance communication technology Wait.

The storage module 1602 may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or Other types of dynamic storage devices that store information and instructions may also be electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory can also be a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.) , A magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

Referring to FIG. 17, FIG. 17 shows that the present application provides a wireless communication system 1700, a terminal device 1710, and a cloud server 1720. The wireless communication system 1700 includes: a terminal device 1710 and a cloud server 1720. The terminal device 1710 may be the terminal device 1300 in the embodiment of FIG. 13, and the cloud server 1720 may be the cloud server 1500 in the embodiment of FIG. 15, which will be described separately below.

As shown in FIG. 17, the terminal device 1710 may include: a processing module 1712 and a communication module 1711. The cloud server 1720 may include: a communication module 1721 and a processing module 1722.

The communication module 1711 can be used to send requests, data, etc. to the cloud server 1720, and accept instructions, data, etc. from the cloud server 1720. The processing module 1712 can be used to process computer programs.

The communication module 1721 may be used to send instructions, data, etc. to the receiving terminal device 1710, and to receive instructions, data, etc. from the terminal device 1710. The processing module 1722 can be used to process computer programs.

It can be understood that, for the specific implementation of each functional unit included in the terminal device 1710 and the cloud server 1720, reference may be made to the foregoing embodiments, and details are not described herein again.

The embodiment of the present application also provides a computer-readable storage medium. The methods described in the foregoing embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the functions can be stored on a computer-readable medium or transmitted on a computer-readable medium as one or more instructions or codes. Computer-readable media may include computer storage media and communication media, and may also include any media that can transfer a computer program from one place to another. The storage medium may be any available medium that can be accessed by a computer.

As an optional design, the computer-readable medium may 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 for carrying or with instructions or data structures The required program code is stored in the form of and can be accessed by the computer. Also, any connection is properly termed a computer-readable medium. For example, if you use coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology (such as infrared, radio and microwave) to transmit software from a website, server or other remote source, then coaxial cable, fiber optic cable , Twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of the medium. Magnetic disks and optical disks as used herein include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVD), floppy disks, and blu-ray disks, where disks usually reproduce data magnetically, while optical disks reproduce data optically using lasers. Combinations of the above should also be included in the scope of computer-readable media.

The embodiment of the present application also provides a computer program product. The methods described in the foregoing embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If it is implemented in software, it can be fully or partially implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the above computer program instructions are loaded and executed on the computer, the procedures or functions described in the above method embodiments are generated in whole or in part. The above-mentioned computer may be a general-purpose computer, a special-purpose computer, a computer network, network equipment, user equipment, or other programmable devices.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. The protection scope, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the present invention shall be included in the protection scope of the present invention.

Claims

A communication method applied to a terminal device, characterized in that the terminal device has a plurality of user identification module SIM cards, each of the plurality of SIM cards corresponds to a different telecommunication operator, and is used by the terminal device to obtain the Communication services provided by different telecommunication operators; the terminal equipment is registered to the networks of the multiple telecommunication operators;

The method includes:

The terminal device establishes a first communication connection with a first network device via a first SIM card; the terminal device establishes a second communication connection with a second network device via a second SIM card; wherein, the terminal device establishes a second communication connection with the second network device via the first SIM card. A communication connection obtains the communication service provided by the first telecommunication operator; the terminal device obtains the communication service provided by the second telecommunication operator through the second communication connection; the first network device is the first telecommunication operator The network equipment; the second network equipment is the network equipment of the second telecommunication operator;

Determining, by the terminal device, that the terminal device is located in a first area; in the first area, the terminal device uses the first communication connection to carry data services;

When it is detected that the terminal device is located in the second area or the distance between the terminal device and the second area is less than the first distance value, the terminal device searches for the second area from the first mapping table. The second telecom operator corresponding to the area;

The terminal device uses the second communication connection to carry data services;

Wherein, the terminal device has the first mapping table, and the first mapping table includes the identities of a plurality of regions, and the identities of the telecommunication operators corresponding to the plurality of regions; The second area is an adjacent area among the multiple areas; the first telecommunications operator is the telecommunications operator corresponding to the first area in the first mapping table; the second telecommunications operator Is the telecommunication operator corresponding to the second area in the first mapping table.
The method according to claim 1, further comprising:

Before the terminal device uses the second communication connection to carry the data service, the terminal device determines that the terminal device does not have an ongoing voice service.
The method according to claim 1, wherein the terminal device uses the second communication connection to carry data services, which specifically comprises:

If the terminal device is performing a voice service, after waiting for the voice service to end, the terminal device uses the second communication connection to carry the data service.
The method according to claim 1, wherein the quality of the communication service provided by the second telecommunication operator in the second area is better than that of the communication service provided by the first telecommunication operator in the second area The quality of service.
The method according to claim 1, wherein the first area and the second area correspond to different telecommunication operators.
The method according to claim 1, further comprising:

The terminal device obtains the first mapping table from a cloud server.
A communication method applied to a cloud server, characterized in that it includes:

The cloud server obtains a communication quality report from a plurality of terminal devices, the communication quality report including: the location of the terminal device, the identification of the telecommunication operator that provides the communication service to the terminal device, and the information of the communication service Communication quality parameters;

The cloud server generates a first mapping table according to the communication quality report; wherein, the first mapping table includes the identities of a plurality of regions, and the identities of the telecommunication operators corresponding to each of the plurality of regions; In the mapping table, the area contains the positioning data of the position of each point in the area; in the first mapping table, the communication quality of the communication service provided by the telecommunication operator corresponding to an area in the area is higher than The first threshold, or the communication quality of the provided communication service is the highest; the telecommunication operator corresponding to the one area is determined according to the communication quality parameters in the communication quality report reported by the terminal equipment in the one area;

The cloud server sends the first mapping table to the terminal device.
The method according to claim 7, wherein the communication quality parameters include the call drop rate, the call drop rate, the stall rate, and the delay time (ms) corresponding to the SIM card of the subscriber identification module of the terminal device. Network rate (mb/s), the number of handovers of the telecom operator in the first time.
The method according to claim 7, wherein in the first mapping table, different areas correspond to different telecommunication operators.
The method according to claim 7, wherein the sending of the first mapping table by the cloud server to the terminal device specifically comprises:

The cloud server periodically sends the first mapping table to the terminal device at a second time interval.
A terminal equipment, which is characterized by comprising: multiple subscriber identification module SIM cards, a positioning device, a communication device, a memory, and a processor coupled to the memory; each of the multiple SIM cards corresponds to a different telecommunication operator, and is used for The terminal device obtains communication services provided by the different telecommunication operators; the terminal device is registered to the networks of the multiple telecommunication operators; wherein:

The communication device is used to establish a first communication connection with a first network device through a first SIM card;

The communication device is also used to establish a second communication connection with a second network device through a second SIM card; wherein the first communication connection is used to obtain a communication service provided by a first telecommunication operator; the second communication connection Used to obtain communication services provided by a second telecommunications operator; the first network equipment is a network equipment of the first telecommunications operator; the second network equipment is a network equipment of the second telecommunications operator;

The positioning device is used to obtain that the terminal device is located in a first area; in the first area, the communication device is also used to use the first communication connection to carry data services;

The processor is configured to: when it is detected that the terminal device is located in the second area or the distance between the terminal device and the second area is less than a first distance value, the processor looks up from the first mapping table The second telecommunication operator corresponding to the second area;

The communication device is further configured to use the second communication connection to carry data services;

The memory is used to store data or instructions generated during the execution of the program by the processor;

Wherein, the memory stores the first mapping table, and the first mapping table includes the identities of a plurality of regions, and the identities of the telecommunication operators corresponding to the plurality of regions; The second area is an adjacent area among the multiple areas; the first telecommunications operator is the telecommunications operator corresponding to the first area in the first mapping table; the second telecommunications operator Is the telecommunication operator corresponding to the second area in the first mapping table.
The terminal device according to claim 11, wherein the communication device is further configured to:

Before the communication device uses the second communication connection to carry the data service, it is determined that the communication device does not have an ongoing voice service.
The terminal device according to claim 11, wherein the communication device is specifically configured to:

If the communication device is performing a voice service, after waiting for the voice service to end, the communication device uses the second communication connection to carry the data service.
The terminal device according to claim 11, wherein the quality of the communication service provided by the second telecommunication operator in the second area is better than that of the communication service provided by the first telecommunication operator in the second area. The quality of communication services.
The terminal device according to claim 11, wherein the first area and the second area correspond to different telecommunication operators.
The terminal device according to claim 11, wherein the processor is further configured to obtain the first mapping table from a cloud server.
A cloud server, characterized by comprising: a receiver, a transmitter, a memory, and a processor coupled to the memory; wherein:

The receiver is used to obtain communication quality reports from multiple terminal devices, the communication quality reports including: the location of the terminal device, the identification of the telecommunication operator that provides the communication service to the terminal device, and the communication service Communication quality parameters;

The processor is configured to generate a first mapping table according to the communication quality report; wherein, the first mapping table includes the identities of a plurality of regions, and the identities of the telecommunication operators corresponding to each of the plurality of regions; In a mapping table, the area contains the positioning data of the position of each point in the area; in the first mapping table, the communication service provided by the telecommunication operator corresponding to an area in the area has high communication quality Or the communication quality of the provided communication service is the highest; the telecommunication operator corresponding to the one area is determined according to the communication quality parameters in the communication quality report reported by the terminal equipment in the one area;

The transmitter is used to send the first mapping table to the terminal device;

The memory is used to store data or instructions generated during the execution of the program by the processor.
The cloud server according to claim 17, wherein the communication quality parameters include the call drop rate, the call drop rate, the jam rate, and the delay time (ms) corresponding to the SIM card of the subscriber identification module of the terminal device. , Network rate (mb/s), the number of handovers of the telecom operator in the first time.
The cloud server according to claim 17, wherein in the first mapping table, different regions correspond to different telecommunication operators.
The cloud server according to claim 17, wherein the transmitter is specifically configured to:

The transmitter periodically sends the first mapping table to the terminal device at a second time interval.
A communication system is characterized by comprising: terminal equipment and a cloud server, wherein:

The terminal device is the terminal device according to any one of claims 11-16;

The cloud server is the cloud server according to any one of claims 17-20.