WO2021098533A1

WO2021098533A1 - Connection establishment method, and terminal apparatus

Info

Publication number: WO2021098533A1
Application number: PCT/CN2020/127107
Authority: WO
Inventors: 王皓; 李小金; 祁建锋; 姚松平; 郭兴民
Original assignee: 荣耀终端有限公司
Priority date: 2019-11-22
Filing date: 2020-11-06
Publication date: 2021-05-27
Also published as: CN111200557B; CN111200557A

Abstract

The present application relates to the technical field of communications, and discloses a connection establishment method and a terminal apparatus, used to address the problem in which terminal apparatuses have difficulties in adaptively selecting a manner of MPTCP deployment when establishing an MPTCP connection with an application server for different applications and under different regions or network operators. The method comprises: a terminal apparatus sequentially attempting, when an application running thereon initiates data transmission with an application server, to establish a MPTCP connection with the application server according to priority levels of multiple MPTCP deployment manners, in descending order of priority, until an MPTCP connection to the application server is successfully established ; and the terminal apparatus performing, on the basis of the established MPTCP connection with the application server, data transmission with respect to the application server.

Description

Method for establishing connection and terminal equipment

Cross-references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201911155555.2, and the application name is "a connection establishment method and terminal equipment" on November 22, 2019, the entire content of which is incorporated into this application by reference in.

Technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a method for establishing a connection and a terminal device.

Background technique

Multi-path transmission control protocol (MPTCP) is an extended protocol of TCP. MPTCP can use the parallel transmission of multiple TCP connections to improve resource utilization. For example: when a user is watching a video, the mobile phone simultaneously transmits data streams through the corresponding TCP connection of the WiFi network and the cellular network. The advantage of this is that it can provide a larger aggregate bandwidth, a higher download rate, less lag, and playback. Smoother.

Currently, MPTCP needs to be supported by both the terminal device side and the application server side. If one side does not support it, it will roll back to the TCP protocol. Referring to Figures 1A and 1B, currently, according to the support methods on the application server side, MPTCP includes deployment methods such as terminal-cloud direct, terminal-pipe collaboration, and terminal-cloud collaboration. End-cloud collaboration is the easiest to implement. It is necessary to create a new proxy server supporting the MPTCP protocol on the application server side, and realize the multi-path transmission between the terminal device and the application server through the proxy server; end-pipe collaboration, with the 5G user datagram protocol (user datagram protocol) The construction of core network gateways such as datagram protocol, UDP) server/converged access gateway (HAG), etc., is easier to promote. Multi-path transmission between terminal equipment and application server is realized through UDP server, etc.; the end cloud is directly connected to the application server. The transformation and promotion are the most difficult. The application server needs to support the MPTCP protocol, and the application server directly supports the multi-path transmission with the terminal device.

However, in the case of different applications, different regions, and different network operators, there are differences in the deployment methods of MPTCP, and it is impossible to implement all regions in a short period of time, whether it is an application server, a UDP server, or a proxy server. , All network operators have the aggregation capability of MPTCP, and multiple deployment methods of MPTCP will coexist for a long time. For any terminal device, it will face the problem of constantly switching between multiple deployment methods of MPTCP according to different applications, regions, network operators and other factors, which will bring difficulties to the deployment and promotion of MPTCP throughout the network.

Summary of the invention

The embodiments of this application provide a connection establishment method and terminal equipment to solve the difficulty of terminal equipment in different applications, different regions, and different network operators, choosing the corresponding MPTCP deployment mode, and establishing MPTCP with application services Connection problem.

In the first aspect, the embodiments of the present application provide a method for establishing a connection, which is applicable to a terminal device, and the method includes: when the running application of the terminal device initiates data transmission to the application server, according to the multi-path transmission control protocol MPTCP The priority of the various deployment methods is from high to low, and try to establish an MPTCP connection with the application server in turn, until the MPTCP connection with the application server is successfully established; the terminal device is based on the MPTCP established with the application server Connect to perform data transmission with the application server.

In the embodiments of the present application, the described connection establishment method implemented by the terminal device may also be implemented by components in the terminal device, for example, by components such as processing chips and circuits in the terminal device. Using the above method, the terminal device will try to establish an MPTCP connection with the application server in order according to the priority of the multiple deployment methods of MPTCP, automatically explore the MPTCP support capability of the network, and quickly find the MPTCP connection method supported by the network. It can adapt to different applications, different regions, and different network operators, and the different MPTCP deployment methods adopted can effectively support the deployment and promotion of MPTCP.

In a possible design, the MPTCP connection may include, but is not limited to, a first TCP connection corresponding to a cellular network and a second TCP connection corresponding to a wireless fidelity WiFi network. In the above design, the MPTCP connection includes but is not limited to the above two examples. Of course, it may also include multiple other TCP connections.

In a possible design, the multiple deployment modes of the MPTCP include at least two of the following deployment modes: terminal-cloud direct, terminal-pipe collaboration, or terminal-cloud collaboration. In the above design, the multiple deployment methods of MPTCP are not limited to the above three examples. The deployment method of MPTCP on which the terminal device performs the MPTCP connection can be configured according to requirements to adapt to different communication scenarios or communication requirements.

In a possible design, when the multiple deployment modes of MPTCP are terminal-cloud direct, terminal-pipe collaboration, and terminal-cloud collaboration, the multiple deployment modes of MPTCP are in the order of priority from high to low. End-to-cloud direct, end-to-pipe collaboration, and end-to-cloud collaboration. In the above design, from the perspective of user experience, the priority of multiple deployment methods of MPTCP is set from high to low according to the degree of experience, which is conducive to improving user experience.

In a possible design, the terminal device attempting to establish an MPTCP connection with the application server based on the client-cloud direct mode includes: the terminal device initiates the MPTCP handshake of the first TCP connection to the application server; When the terminal device and the application server fail to perform the MPTCP handshake of the first TCP connection, the terminal device determines that the establishment of the MPTCP connection with the application server in the direct-to-cloud manner fails; when the terminal device and the application server When the MPTCP handshake of the first TCP connection is successful, the terminal device initiates the MPTCP handshake of the second TCP connection to the application server; when the terminal device and the application server perform the MPTCP handshake of the second TCP connection When it succeeds, the terminal device determines that the MPTCP connection with the application server is successfully established in the end-cloud direct mode; when the MPTCP handshake of the second TCP connection between the terminal device and the application server fails, the terminal device determines Failed to establish an MPTCP connection with the application server according to the end-cloud direct mode; wherein the successful MPTCP handshake of the TCP connection between the terminal device and the application server includes that the terminal device receives the application server's transmission during the MPTCP handshake process Support MPTCP response information. In the above design, a way to try to establish an MPTCP connection with the application server according to the direct-to-cloud method is provided, which is conducive to faster establishment of the MPTCP connection between the terminal device and the application server.

In a possible design, the terminal device attempts to establish an MPTCP connection with the application server based on the end-pipe coordination method, including: the terminal device establishes the first TCP connection with the server; The address of a network element (such as a UPF server, HAG, etc.) that supports multi-channel aggregation in the core network corresponding to the first TCP connection is used as the network proxy address of the application server, and a second TCP connection is initiated to the application server; When the terminal device successfully establishes the second TCP connection with the application server, the terminal device determines that the MPTCP connection is successfully established with the application server according to the end-pipe coordination mode; when the terminal device and the application server are established When the second TCP connection fails, the terminal device determines that the establishment of the MPTCP connection with the application server fails in a terminal-pipe coordination manner. In the above design, a way to try to establish an MPTCP connection with the application server according to the end-pipe coordination mode is provided, which is beneficial to establish an MPTCP connection between the terminal device and the application server.

In a possible design, the terminal device attempts to establish an MPTCP connection with the application server based on the end-cloud collaboration method, including: the terminal device uses the address of the proxy server as the network proxy address of the application server, The application server initiates the first TCP connection and the second TCP connection; when the terminal device successfully establishes the first TCP connection and the second TCP connection with the application server, the terminal device determines to follow the end cloud The establishment of an MPTCP connection with the application server succeeds in the coordination mode; when the terminal device fails to establish the first TCP connection and/or the second TCP connection with the application server, the terminal device determines to establish the connection with the application server in the terminal cloud coordination mode. The application server failed to establish the MPTCP connection. In the above design, a way to try to establish an MPTCP connection with an application server according to a client-cloud collaboration mode is provided, which is beneficial to establishing an MPTCP connection between the terminal device and the application server.

In a possible design, the method may further include: when the terminal device sequentially attempts to establish an MPTCP connection with the application server according to the priority of the multiple deployment modes of the MPTCP from high to low. When unsuccessful, that is, when the MPTCP connection with the application server fails to be established according to the MPTCP deployment mode with the lowest priority, the terminal device establishes a TCP connection with the application server; the terminal device establishes a TCP connection with the application server based on the TCP connection The application server performs data transmission. In the above design, when the terminal equipment does not establish an MPTCP connection with the application server in the multiple deployment methods based on MPTCP, rolling back to the TCP protocol to establish a TCP connection with the application server is beneficial to ensure the reliability of data transmission.

In the second aspect, an embodiment of the present application provides a terminal device, including a processor and a memory. The memory is used to store one or more computer programs; when the one or more computer programs stored in the memory are executed by the processor, the terminal device can implement any one of the possible design methods in any one of the above aspects.

In a third aspect, an embodiment of the present application further provides a device, which includes a module/unit that executes any one of the possible design methods in any of the foregoing aspects. These modules/units can be realized by hardware, or by hardware executing corresponding software.

In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium includes a computer program. When the computer program runs on a terminal device, the terminal device can execute any of the above. Any one of the possible design methods.

In a fifth aspect, the embodiments of the present application also provide a computer program product, when the computer program product runs on a terminal, the terminal device can execute any one of the possible design methods in any of the foregoing aspects.

In a sixth aspect, an embodiment of the present application also provides a chip, which is coupled with a memory, and is configured to read and execute program instructions stored in the memory to realize the first aspect or any one of the first aspects. The method described in the design.

For the technical effects that can be achieved from the second aspect to the sixth aspect described above, please refer to the technical effects that can be achieved by any possible design in the first aspect described above, which will not be repeated here.

Description of the drawings

Figure 1A is a schematic diagram of the MPTCP deployment method provided by this application;

Figure 1B is a schematic diagram of the promotion difficulty, cost and experience of the MPTCP deployment method provided by this application;

FIG. 2 is a system architecture of an MPTCP application provided by an embodiment of the application;

FIG. 3 is an architecture diagram of a data transmission system for multi-network deployment provided by an embodiment of the application;

4 is a schematic diagram of a TCP protocol stack extended to MPTCP protocol stack provided by an embodiment of the application;

FIG. 5 is a schematic diagram of an MPTCP implementation process provided by an embodiment of this application;

FIG. 6 is a schematic structural diagram of a terminal device provided by an embodiment of this application;

FIG. 7 is a schematic diagram of a connection establishment process provided by an embodiment of the application;

FIG. 8 is a schematic diagram of establishing a direct MPTCP connection between the device and the cloud according to an embodiment of the application;

FIG. 9 is a schematic diagram of a terminal-pipe cooperative MPTCP connection establishment according to an embodiment of the application;

FIG. 10 is a schematic diagram of establishing a terminal-cloud cooperative MPTCP connection provided by an embodiment of this application;

FIG. 11 is a schematic block diagram of a connection establishment apparatus provided by an embodiment of this application;

FIG. 12 is a schematic diagram of another connection establishment apparatus provided by an embodiment of this application.

Detailed ways

The specific implementation process of the embodiments of the present application will be described in detail below with reference to the various drawings.

The connection establishment method provided in the embodiments of this application can be applied to data transmission in a communication system, where the data receiving end and the data sending end can exchange data through a radio access network (RAN) and a core network. The data A transmission control protocol (TCP) connection may also be established between the receiving end and the data sending end, and the TCP protocol is used for data transmission. As shown in Figure 2, the terminal device and the application server in the wireless communication system exchange data. The terminal device connects to the RAN through the air interface and connects to the application server via the core network. The network between the terminal device and the RAN can be called It is a wireless network, and the network between the RAN and the application server can be called a wired network. A TCP connection is established between the application server and the terminal device and data transmission is performed.

The application server may be a server in a server cluster, for example, different video clips of a certain video application may be distributed on different servers; the application server may also be a certain server.

With the development of communication technology, the communication system has evolved into a communication architecture jointly deployed by multiple communication networks, and terminal devices can access more than one communication network for communication. It should be noted that when the communication network is a local area network, for example, the communication network may be a wireless fidelity (WiFi) network (also called a Wi-Fi network), a Bluetooth network, a zigbee network, or near field communication. (near field communication, NFC) network and other short-distance communication networks. When the communication network is a wide area network, for example, the communication network may be a 3rd-generation wireless telephone technology (3G) network, or the 4th generation mobile communication technology (4G). ) Network, the fifth-generation mobile communication technology (5G) network, the future evolution of the public land mobile network (PLMN) or the Internet, etc.

For example, in the communication system where WiFi network and long term evolution (LTE) network are deployed in Figure 3, terminal devices can access the WiFi network and pass the evolved packet data gateway (ePDG) or be trusted A trusted gateway (TGW) performs data transmission with an application server, and can also be connected to an LTE network, and performs data transmission with the application server through a serving gateway (SGW) or packet data network gateway (PGW).

Among them, the deployment of heterogeneous networks has promoted the development of multi-path data transmission services. At present, the MPTCP protocol is obtained by extending the TCP protocol. Using the MPTCP protocol, a service can use multi-path network resources for data transmission. For example, in Figure 3, the mobile phone can use WiFi network resources and LTE network resources to transmit data with the application server. Figure 4 shows a schematic diagram of the expansion of the TCP protocol stack to the MPTCP protocol stack. In the TCP protocol stack, the data flow of the application layer is sent through a TCP connection. In the MPTCP protocol stack, the transport layer is divided into two sub-layers: MPTCP layer and TCP layer. The data flow of the application layer is decomposed by the MPTCP layer. The two TCP connections are transmitted.

Figure 5 shows a schematic diagram of MPTCP usage scenarios. In Figure 5, two TCP connections are established between the terminal device and the application server. One TCP connection uses WiFi network resources, and the other TCP connection uses LTE network resources. The MPTCP layer of the application server decomposes the TCP stream into two TCP sub-streams and transmits them to the terminal device separately through these two TCP connections. After receiving the two TCP sub-streams, the terminal device combines the two sub-streams and sends them to Application layer.

In some embodiments of the present application, the terminal device in the wireless communication system shown in FIG. 2 may be a portable terminal device that also contains other functions such as personal digital assistants and/or music player functions, such as mobile phones, tablet computers, and wireless communication. Functional wearable devices (such as smart watches), etc. Exemplary embodiments of portable terminal equipment include, but are not limited to, carrying

Or portable terminal equipment with other operating systems. The aforementioned portable terminal device may also be other portable terminal devices, such as a laptop with a touch-sensitive surface (for example, a touch panel). It should also be understood that in some other embodiments of the present application, the aforementioned terminal device may not be a portable terminal device, but a desktop computer with a touch-sensitive surface (such as a touch panel).

Exemplarily, as shown in FIG. 6, the terminal device in the embodiment of the present application may be a mobile phone, and the embodiment will be described in detail by taking a mobile phone as an example.

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

The processor 110 may include one or more processing units. For example, the processor 110 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 mobile phone 100. The controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching and executing instructions. A memory may also be provided in the processor 110 to store instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory can store instructions or data that the processor 110 has just used or used cyclically. If the processor 110 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 110 is reduced, and the efficiency of the system is improved.

The USB interface 130 is an interface that complies with the USB standard specification, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and so on. The USB interface 130 can be used to connect a charger to charge the mobile phone 100, and can also be used to transfer data between the mobile phone 100 and peripheral devices. The charging management module 140 is used to receive charging input from the charger. The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the external memory, the display screen 194, the camera 193, and the wireless communication module 160.

The wireless communication function of the mobile phone 100 can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor. Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the mobile phone 100 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 150 may provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the mobile phone 100. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 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 150 may be provided in the processor 110. In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.

The wireless communication module 160 can provide applications on the mobile phone 100 including wireless local area networks (WLAN) (such as WiFi networks), Bluetooth (bluetooth, BT), global navigation satellite system (GNSS), and frequency modulation. (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110. The wireless communication module 160 may also receive the signal to be sent from the processor 110, perform frequency modulation, amplify it, and convert it into electromagnetic waves to radiate through the antenna 2.

In some embodiments, the antenna 1 of the mobile phone 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the mobile phone 100 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 display screen 194 is used to display the display interface of the application and the like. The display screen 594 includes a display panel. The display panel can adopt 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). AMOLED, flexible light-emitting diode (FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (QLED), etc. In some embodiments, the mobile phone 100 may include one or N display screens 194, and N is a positive integer greater than one. In the embodiment of the present application, the display screen 194 may be used to display multiple application interfaces at the same time.

The camera 193 is used to capture still images or videos. The camera 193 may include a front camera and a rear camera.

The internal memory 121 may be used to store computer executable program code, where the executable program code includes instructions. The processor 110 executes various functional applications and data processing of the mobile phone 100 by running instructions stored in the internal memory 121. The internal memory 121 may include a storage program area and a storage data area. Among them, the storage program area can store an operating system, and software codes of at least one application (for example, an iQiyi application, a WeChat application, etc.). The data storage area can store data (such as images, videos, etc.) generated during the use of the mobile phone 100. In addition, the internal memory 121 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 external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the mobile phone 100. The external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example, save pictures, videos and other files in an external memory card.

The mobile phone 100 can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. For example, music playback, recording, etc.

The pressure sensor 180A is used to sense the pressure signal and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be provided on the display screen 194. The gyro sensor 180B may be used to determine the movement posture of the mobile phone 100. In some embodiments, the angular velocity of the mobile phone 100 around three axes (ie, x, y, and z axes) can be determined by the gyroscope sensor 180B.

The gyro sensor 180B can be used for image stabilization. The air pressure sensor 180C is used to measure air pressure. In some embodiments, the mobile phone 100 uses the air pressure value measured by the air pressure sensor 180C to calculate the altitude to assist positioning and navigation. The magnetic sensor 180D includes a Hall sensor. The mobile phone 100 can use the magnetic sensor 180D to detect the opening and closing of the flip holster. In some embodiments, when the mobile phone 100 is a flip phone, the mobile phone 100 can detect the opening and closing of the flip according to the magnetic sensor 180D. Furthermore, according to the detected opening and closing state of the holster or the opening and closing state of the flip cover, features such as automatic unlocking of the flip cover are set. The acceleration sensor 180E can detect the magnitude of the acceleration of the mobile phone 100 in various directions (generally three axes). When the mobile phone 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify mobile phone gestures, switch between horizontal and vertical screens, pedometers and other applications.

Distance sensor 180F, used to measure distance. The mobile phone 100 can measure the distance by infrared or laser. In some embodiments, when shooting a scene, the mobile phone 100 may use the distance sensor 180F to measure the distance to achieve fast focusing. The proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector such as a photodiode. The light emitting diode may be an infrared light emitting diode. The mobile phone 100 emits infrared light to the outside through the light emitting diode. The mobile phone 100 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 mobile phone 100. When insufficient reflected light is detected, the mobile phone 100 can determine that there is no object near the mobile phone 100. The mobile phone 100 can use the proximity light sensor 180G to detect that the user holds the mobile phone 100 close to the ear to talk, so as to automatically turn off the screen to save power. The proximity light sensor 180G can also be used in leather case mode, and the pocket mode will automatically unlock and lock the screen.

The ambient light sensor 180L is used to sense the brightness of the ambient light. The mobile phone 100 can adaptively adjust the brightness of the display 194 according to the perceived brightness of the ambient light. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the mobile phone 100 is in the pocket to prevent accidental touch. The fingerprint sensor 180H is used to collect fingerprints. The mobile phone 100 can use the collected fingerprint characteristics to realize fingerprint unlocking, access application locks, fingerprint photographs, fingerprint answering calls, and so on.

The temperature sensor 180J is used to detect temperature. In some embodiments, the mobile phone 100 uses the temperature detected by the temperature sensor 180J to execute a temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the mobile phone 100 performs a reduction in the performance of the processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the mobile phone 100 heats the battery 142 to avoid abnormal shutdown of the mobile phone 100 due to low temperature. In some other embodiments, when the temperature is lower than another threshold, the mobile phone 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.

Touch sensor 180K, also called "touch panel". The touch sensor 180K may be disposed on the display screen 194, and the touch screen is composed of the touch sensor 180K and the display screen 194, which is also called a “touch screen”. The touch sensor 180K 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 194. In other embodiments, the touch sensor 180K may also be disposed on the surface of the mobile phone 100, which is different from the position of the display screen 194.

The bone conduction sensor 180M can acquire vibration signals. In some embodiments, the bone conduction sensor 180M can obtain the vibration signal of the vibrating bone mass of the human voice. The bone conduction sensor 180M can also contact the human pulse and receive the blood pressure pulse signal.

The button 190 includes a power-on button, a volume button, and so on. The button 190 may be a mechanical button. It can also be a touch button. The mobile phone 100 can receive key input, and generate key signal input related to user settings and function control of the mobile phone 100. The motor 191 can generate vibration prompts. The motor 191 can be used for incoming call vibration notification, and can also be used for touch vibration feedback. For example, touch operations that act on different applications (such as photographing, audio playback, etc.) can correspond to different vibration feedback effects. The indicator 192 may be an indicator light, which may be used to indicate the charging status, power change, or to indicate messages, missed calls, notifications, and so on. The SIM card interface 195 is used to connect to the SIM card. The SIM card can be inserted into the SIM card interface 195 or pulled out from the SIM card interface 195 to achieve contact and separation with the mobile phone 100.

It is understandable that the components shown in Figure 6 do not constitute a specific limitation on the mobile phone. The mobile phone may also include more or fewer components than those shown in the figure, or combine some components, or split some components, or different The layout of the components.

In different applications, different regions, and different network operators, there may be differences in the deployment methods of MPTCP. Exemplary: Application A is only valid for users on the same network (the same core network, such as the same network operator), and the MPTCP deployment method with end-management collaboration is effective; Application B is only for users in the Beijing area. Method: Application C is only valid for users in Beijing, Shanghai, and Shenzhen, using the MPTCP deployment method of device-cloud collaboration. In the prior art, a static configuration method (such as saving to the terminal device when the application program is installed) is usually statically configured on the terminal device side, and the MPTCP deployment method that is effective for the application program is configured. The terminal device performs MPTCP connection according to the statically configured MPTCP deployment method that is effective for the application. For example, application A is only effective for users on the same network. When users on the same network use the MPTCP deployment method of the terminal management association, they can successfully establish an MPTCP connection. Different network users will fail when using the MPTCP deployment mode of the End Management Association and roll back to the TCP protocol. However, with the continuous construction of the network, the ability of application servers, UPF servers, etc. to support MPTCP will continue to change, and the MPTCP deployment method that static configuration takes effect on applications will become more complicated, which will bring difficulties to the entire network to implement MPTCP deployment and promotion.

This application aims to provide a connection establishment solution to try and apply MPTCP in order of priority from high to low under different application programs, different regions, different network operators and other network conditions. The server establishes an MPTCP connection, automatically explores the MPTCP support capability of the network, quickly finds the MPTCP connection mode supported by the network, and supports the deployment and promotion of MPTCP.

For ease of understanding, the following embodiments of the present application will take the mobile phone 100 having the structure shown in FIG. 6 as an example, and describe the connection establishment method provided by the embodiments of the present application in detail with reference to the accompanying drawings.

In addition, it needs to be understood that in the embodiments of the present application, the word "exemplary" is used to represent an example, illustration, or illustration. Any embodiment or design solution described as an "example" in this application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, the term example is used to present the concept in a concrete way. The terms "including" and "having" in the embodiments of the present application, claims and drawings are not exclusive. For example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or modules, and may also include unlisted steps or modules. The terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship. It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information. And, unless otherwise stated, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance. The "plurality" referred to in this application is two or more than two.

In the embodiment of the present application, the mobile phone 100 supports MPTCP, that is, the mobile phone 100 can connect to at least two networks at the same time. For example, the mobile phone 100 can be connected to a WiFi network and a cellular network at the same time, and the mobile phone 100 can establish two corresponding communication links through the two network connections for data transmission.

In addition, the mobile phone 100 is also configured with multiple deployment methods of MPTCP, and respective priorities corresponding to the multiple deployment methods. Exemplary: The deployment methods of MPTCP configured in the mobile phone 100 include: device-cloud collaboration, device-pipe coordination, and device-cloud direct, and the priority of device-cloud direct is "1", the priority of device-pipe collaboration is "2" and the end The priority of cloud collaboration is "3", where as the value of the priority increases, the corresponding priority decreases.

As an example, the multiple deployment methods of MPTCP configured in the mobile phone 100 and the respective priorities of the multiple deployment methods may be configured in the mobile phone 100 by the manufacturer of the mobile phone 100 when the mobile phone 100 is shipped from the factory, and The multiple deployment methods of MPTCP configured in the mobile phone 100 and the respective priorities corresponding to the multiple deployment methods can be updated by updating information such as the system configuration in the mobile phone 100.

Specifically, when the running application of the mobile phone 100 initiates a data connection to the application server, the mobile phone 100 attempts to establish an MPTCP connection with the application server in order of priority of the multiple deployment modes included in MPTCP, Until the establishment of the MPTCP connection with the application server succeeds, or the establishment of the MPTCP connection with the application server fails according to the MPTCP deployment mode with the lowest priority.

The following MPTCP connections include: the first TCP connection corresponding to the cellular network and the second TCP connection corresponding to the WiFi network. The deployment methods of MPTCP configured in the mobile phone 100 include: terminal-cloud collaboration, terminal-pipe collaboration, and terminal-cloud direct, and priority Take the example of terminal-cloud direct priority> terminal-pipe collaboration priority> terminal-cloud collaboration priority.

Referring to FIG. 7, it exemplarily shows a flow of a connection establishment method provided by an embodiment of the present application. The method is executed by the mobile phone 100, and the method includes the following steps.

S701: When the running application of the mobile phone 100 initiates data transmission to the application server, it tries to establish an MPTCP connection with the application server based on the direct mode of the terminal cloud; when the establishment of the MPTCP connection is successful, proceed to S704; when the establishment of the MPTCP connection fails, proceed to S702.

In the embodiment of this application, the application program may be Tencent Video, Baofengyingyin, Kugou Music, WeChat, QQ and other applications that need to transmit data with the corresponding application server through the network, which is not specifically limited in this application. In other words, the application is a "networked" application rather than a "stand-alone" application.

When there are multiple available networks, such as cellular networks and WiFi networks, when "networking" applications such as Tencent Video, Baofengyingyin, and Kugou Music in the mobile phone 100 are activated, the applications running in the mobile phone 100 "such as "Baofengyingyin" will initiate data transmission to the corresponding application server "such as Baofengyingyin application server". When the running application of the mobile phone 100 initiates data transmission to the application server, it first attempts to establish an MPTCP connection with the application server based on the client-cloud direct method. Referring to FIG. 8, the mobile phone 100 may first perform the MPTCP handshake of the first TCP connection with the application server, where the first TCP connection may be the first TCP connection corresponding to the cellular network, or the second TCP corresponding to the WiFi network. connection. Specifically, when performing the MPTCP handshake of the first TCP connection with the application server, the mobile phone 100 may send MPTCP handshake information to the application server, where the MPTCP handshake information may be sent through a synchronization sequence number (synchronize sequence numbers, syn) packet , Carries the MPTCP capability (capability) field, and is used to negotiate the MPTCP capability with the application server.

When the application server supports MPTCP, the application server can send a response message supporting MPTCP to the mobile phone 100. After receiving the response message supporting MPTCP sent by the application server, the mobile phone 100 determines that the MPTCP handshake of the first TCP connection with the application server is successful. The application server supports MPTCP, and the mobile phone 100 establishes the first TCP connection with the application server. When the application server does not support MPTCP, the application server may send a response message that does not support MPTCP to the mobile phone 100, or may not respond to the MPTCP handshake message sent by the mobile phone 100. After the mobile phone 100 sends MPTCP handshake information to the application server, it receives a response message that does not support MPTCP from the application server, or does not receive a response from the application server within the response time (such as 1s) after sending the MPTCP handshake message Information, it is determined that the MPTCP handshake with the application server failed, the application server does not support MPTCP, and does not support the deployment of end-to-cloud direct deployment. Continue to try to establish an MPTCP connection with the application server based on the deployment of end-pipe collaboration

After the application server supports MPTCP and the mobile phone 100 successfully completes the MPTCP handshake of the first TCP connection with the application server, the mobile phone 100 continues to send the second TCP connection MPTCP handshake information to the application server. Because it has been determined that the application server supports MPTCP, the second The MPTCP handshake of one TCP connection usually succeeds, and the mobile phone 100 can establish a second TCP connection with the application server to realize direct connection between the end (mobile phone) and the cloud (application server). But when the first TCP connection and the second TCP connection are in different networks, for example, the first TCP connection (cellular network) corresponds to core network A, such as the core network of China Mobile, and the second TCP connection (WiFi network) corresponds to the core Network B, such as the core network of China Unicom, may also fail the MPTCP handshake of the second TCP connection. When the MPTCP handshake of the second TCP connection fails, the mobile phone 100 determines that the terminal device and the application server do not support direct cloud access. Deployment method, continue to try to establish an MPTCP connection with the application server based on the deployment method of end-pipe coordination.

S702: The mobile phone 100 attempts to establish an MPTCP connection with the application server based on the terminal-pipe coordination mode; when the MPTCP connection is successfully established, S704 is performed, and when the MPTCP connection fails to be established, S703 is performed.

As shown in Figure 9, after the mobile phone 100 establishes the first TCP connection with the application server, the mobile phone 100 can obtain from the first TCP connection a network element (such as UPF) in the core network corresponding to the first TCP connection that supports multi-channel aggregation. The address of the server (component, the following takes the network element supporting multi-channel aggregation in the core network as the UPF server as an example), the mobile phone 100 sets the address of the UPF server as the network proxy address of the application server, and the mobile phone 100 sends the application server Initiate the second TCP connection. If the first TCP connection and the second TCP connection are on the same network, for example, the first TCP connection (cellular network) and the second TCP connection (WiFi network) correspond to the same core network A, such as China Mobile’s core network, that is, the WiFi network that the mobile phone 100 accesses and the cellular network have the same network operators, both of which are China Mobile, so the second TCP connection can be routed to the UPF server of the first TCP connection, and the second The TCP connection can be established successfully, indicating that the deployment mode of supporting end-pipe coordination is supported.

If the first TCP connection and the second TCP connection are in different networks, for example, the first TCP connection (cellular network) corresponds to core network A, such as the core network of China Mobile, and the second TCP connection (WiFi network) corresponds to core network B For example, in the core network of China Unicom, the mobile phone 100 uses the address of the UPF server corresponding to the first TCP connection as the network proxy address of the application server. When the second TCP connection is initiated, it cannot be routed to the UPF server of core network B. The second TCP connection fails to be established, and the deployment method of terminal-pipe coordination is not supported. Continue to try to establish an MPTCP connection with the application server based on the deployment method of terminal-cloud coordination.

Among them, network proxy, also called "agent" is a special network service that allows a network terminal (generally a client, such as mobile phone 100) to communicate with another network terminal (generally a server, such as an application server) through this service. Indirect connection. Computer systems or other types of network terminals (such as UPF servers) that provide proxy services can be referred to as proxy servers. In the embodiment of the present application, the UPF server as a network proxy and the following proxy server are the mobile phone 100 and The intermediary agency between the application servers is responsible for forwarding data between the mobile phone 100 and the application server.

S703: The mobile phone 100 attempts to establish an MPTCP connection with the application server based on the client-cloud collaboration; when the MPTCP connection is established successfully, S704 is performed, and when the MPTCP connection fails to be established, S705 is performed.

10, the mobile phone 100 modifies the network proxy address to the address of the proxy server, and initiates the first TCP connection and the second TCP connection to the application server; that is, initiates the first TCP connection and WiFi network corresponding to the cellular network to the application server Corresponding to the second TCP connection, generally speaking, the first TCP connection and the second TCP connection will be successful, and the terminal device can establish an MPTCP connection with the application server; if any TCP connection fails, it is determined that the deployment of the terminal cloud collaboration is not supported the way. In a possible implementation, the proxy server may be set by the manufacturer of the mobile phone 100, and the address of the proxy server is pre-configured in the mobile phone 100.

S704: The mobile phone 100 performs data transmission with the application server based on the MPTCP connection established with the application server.

S705: If the mobile phone 100 fails to establish an MPTCP connection with the application server after performing the above steps S701 to S703, then the mobile phone 100 establishes a TCP connection with the application server, and communicates with the application server based on the TCP connection data transmission.

If the mobile phone 100 successfully establishes the MPTCP connection with the application server, the mobile phone 100 performs data transmission with the application server based on the MPTCP connection established with the application server. If the mobile phone 100 tries to establish an MPTCP connection with the application server according to the priority of the multiple deployment methods of MPTCP from high to low, until the deployment method of MPTCP with the lowest priority "end-cloud collaborative deployment method" is still If the MPTCP connection is not successfully established with the application server, the mobile phone 100 can be rolled back to the TCP connection mode by MPTCP, and the mobile phone 100 establishes a TCP connection with the application server. For example, only the first TCP connection corresponding to the cellular network is established with the application server or the wireless fidelity is established The second TCP connection corresponding to the WiFi network performs data transmission with the application server, thereby further protecting the reliability of data transmission.

In the above-mentioned embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of the terminal device as the execution subject. In order to implement the functions in the methods provided in the above embodiments of the present application, the terminal device may include a hardware structure and/or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a certain function of the above-mentioned functions is executed by a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.

Based on the same concept, FIG. 11 shows a connection establishment apparatus 1100 provided in this application, which is used to implement the connection establishment method shown in FIG. 7. For example, the apparatus 1100 may be a terminal device or an application server, or a chip. For example, the apparatus 1100 includes a processing unit 1101 and a communication unit 1102.

For example, the processing unit 1101 is configured to, when the running application program initiates data transmission to the application server, according to the priority order of the multiple deployment modes of MPTCP, from high to low, the communication unit 1102 tries to establish a connection with the application server in turn. MPTCP connection until the MPTCP connection is successfully established with the application server; the communication unit 1102 is configured to perform data transmission with the application server based on the MPTCP connection established with the application server. For example, when the apparatus 1100 is a terminal device, the communication unit 1102 may be a transceiver. For another example, when the device 1100 is a chip, the communication unit 1102 may be an interface.

Based on the same concept, referring to FIG. 12, a connection establishment apparatus 1200 provided in this application is shown. The device 1200 includes: a transceiver 1201, a processor 1202, and a memory 1203. Wherein, the transceiver 1201, the processor 1202, and the memory 1203 are connected to each other.

Optionally, the transceiver 1201, the processor 1202, and the memory 1203 are connected to each other through a bus 1204. The bus 1204 may be a peripheral component interconnect standard (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of presentation, only one thick line is used to represent in FIG. 12, but it does not mean that there is only one bus or one type of bus.

The memory 1203 is used to store program instructions and data. Specifically, the program instructions may include program code, and the program code includes computer operation instructions. The memory 1203 may include a random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 1202 executes the program instructions and data stored in the memory 1203 to realize the above-mentioned functions, thereby realizing the connection establishment method provided in the above-mentioned embodiment.

Based on the above embodiments, the embodiments of the present application also provide a computer program product, which when the computer program product runs on a terminal device, causes the terminal device to execute the connection establishment method provided in the above embodiment.

Based on the above embodiments, the present application also provides a chip, which is coupled with a memory, and is configured to read and execute program instructions stored in the memory, and execute the connection establishment method provided in the above embodiments.

Based on the above embodiments, this application also provides a computer-readable storage medium, the computer-readable storage medium includes a computer program, when the computer program runs on a terminal device, the terminal device is caused to execute the method provided in the above embodiment Connection establishment method.

Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

This application is described with reference to the flowcharts and/or block diagrams of the methods, equipment (systems), and computer program products according to the application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Claims

A method for establishing a connection, characterized in that it comprises:

When the running application of the terminal device initiates data transmission to the application server, it tries to establish an MPTCP connection with the application server in sequence according to the priority order of the multiple deployment modes of the multi-path transmission control protocol MPTCP, until it connects with the application server. The application server successfully establishes an MPTCP connection;

The terminal device performs data transmission with the application server based on the MPTCP connection established with the application server.
The method of claim 1, wherein the MPTCP connection comprises:

The first TCP connection corresponding to the cellular network and the second TCP connection corresponding to the Wi-Fi network.
The method according to claim 1, wherein the multiple deployment modes of MPTCP include in the order of priority from high to low:

End-to-cloud direct, end-to-pipe collaboration, and end-to-cloud collaboration.
The method according to any one of claims 1-3, wherein the terminal device attempting to establish an MPTCP connection with the application server based on a direct-to-cloud-to-device method comprises:

When the terminal device and the application server successfully perform the MPTCP handshake of the first TCP connection, the terminal device initiates the MPTCP handshake of the second TCP connection to the application server;

When the terminal device and the application server successfully perform the MPTCP handshake of the second TCP connection, the terminal device determines that the MPTCP connection is successfully established with the application server according to the terminal cloud direct connection;

When the MPTCP handshake of the second TCP connection between the terminal device and the application server fails, the terminal device determines that the establishment of the MPTCP connection with the application server fails according to the terminal cloud direct connection;

Wherein, the successful MPTCP handshake of the TCP connection between the terminal device and the application server includes that the terminal device receives the MPTCP-supporting response information sent by the application server during the MPTCP handshake process.
The method according to any one of claims 1-4, wherein the method further comprises:

When the terminal device successively attempts to establish an MPTCP connection with the application server in order of priority from high to low according to the multiple deployment modes of the MPTCP, the terminal device establishes a TCP connection with the application server. connection;

The terminal device performs data transmission with the application server based on the TCP connection.
A terminal device, characterized in that it comprises a processor and a memory;

The memory is used to store one or more computer programs;

When one or more computer programs stored in the memory are executed by the processor, the terminal device is caused to execute:

When the running application initiates data transmission to the application server, according to the priority order of the multiple deployment modes of the multi-path transmission control protocol MPTCP, it tries to establish an MPTCP connection with the application server in turn, until it connects with the application server. The application server successfully established an MPTCP connection;

Based on the MPTCP connection established with the application server, data transmission is performed with the application server.
The terminal device of claim 6, wherein the MPTCP connection comprises:

The first TCP connection corresponding to the cellular network and the second TCP connection corresponding to the Wi-Fi network.
The terminal device according to claim 6, wherein the multiple deployment modes of MPTCP include in the order of priority from high to low:

End-to-cloud direct, end-to-pipe collaboration, and end-to-cloud collaboration.
The terminal device according to any one of claims 6-8, wherein, when one or more computer programs stored in the memory are executed by the processor, an attempt is made to establish a connection with the application server based on a direct-to-cloud method. When MPTCP is connected, it is specifically used for:

When the MPTCP handshake of the first TCP connection with the application server is successful, initiate the MPTCP handshake of the second TCP connection to the application server;

When the MPTCP handshake of the second TCP connection with the application server is successful, it is determined that the MPTCP connection is successfully established with the application server according to the end-cloud direct connection;

When the MPTCP handshake of the second TCP connection with the application server fails, it is determined that the establishment of the MPTCP connection with the application server fails according to the end-cloud direct connection;

Wherein, the successful MPTCP handshake of the TCP connection with the application server is included in the MPTCP handshake process, receiving the response information that supports MPTCP sent by the application server.
The terminal device according to any one of claims 6-9, wherein when one or more computer programs stored in the memory are executed by the processor, they are further used to:

Establishing a TCP connection with the application server when the successive attempts to establish an MPTCP connection with the application server are unsuccessful according to the priority order of the multiple deployment modes of the MPTCP from high to low;

Perform data transmission with the application server based on the TCP connection.
A computer program, characterized in that, when the computer program runs on a terminal device, the terminal device is caused to execute the method according to any one of claims 1-5.
A computer-readable storage medium, wherein the computer-readable storage medium includes a computer program, which when the computer program runs on a terminal device, causes the terminal device to execute any one of claims 1-5 The connection establishment method described.
A chip, characterized in that the chip is used to read a computer program stored in a memory and execute the method according to any one of claims 1-5.