CN114531472A

CN114531472A - Communication method and electronic device

Info

Publication number: CN114531472A
Application number: CN202011200673.3A
Authority: CN
Inventors: 李小金; 王皓; 黄羡
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2022-05-24
Anticipated expiration: 2040-10-30
Also published as: CN114531472B

Abstract

The application provides a communication method and electronic equipment, in a multipath transmission control protocol (MPTCP) scene, when a client requests to establish network connection with a first service terminal belonging to a first operator through a network of a second operator, a request for establishing network connection carrying an Internet Protocol (IP) address of the first service terminal is firstly sent to the second service terminal belonging to the second operator, and then the second service terminal forwards the request to the first service terminal according to the IP address of the first service terminal, so that when a subsequent client requests resources from the first service terminal, the first service terminal firstly sends the resources to the second service terminal and then forwards the resources to the client terminal through the second service terminal, and because the second service terminal belongs to the second operator, the second operator cannot limit the communication speed between the client and the second service terminal through the network of the second operator, therefore, the method can improve the communication experience of the user.

Description

Communication method and electronic device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and an electronic device in the field of communications.

Background

At present, most intelligent clients support simultaneous use of dual networks or multiple networks, and provide a larger aggregate bandwidth through the dual networks or the multiple networks, so that users can enjoy smoother communication experience.

For example, the client and the server may communicate based on a multipath transmission control protocol (MPTCP), where the MPTCP is a transmission protocol that concurrently transmits through multiple paths, the client may initiate two requests for the same service to the same server through a network of a first operator and a network of a second operator, the server sends two parts of resources requested by the client to the client through the network of the first operator and the network of the second operator respectively according to the two received requests, and the client integrates the two received resources to obtain the requested resources.

However, when the operator to which the server belongs is not the first operator or the second operator, at this time, if the client requests the server for the resource through the network of the first operator or the network of the second operator, because the first operator and the second operator are different operators, the operator to which the server belongs may limit the communication speed of the client when communicating with the server through the network of the first operator or the network of the second operator, or even block the communication between the client and the server, which may cause the client to request the resource through the network of the first operator or the network of the second operator, or even cause the client to be unable to request the resource from the server through the network of the first operator or the network of the second operator, and affect the communication experience of the user.

Disclosure of Invention

The embodiment of the application provides a communication method and electronic equipment, in an MPTCP scene, when a client requests to establish network connection with a first service end belonging to a first operator through a network of a second operator, the client first sends a request for establishing network connection carrying an IP address of the first service end to the second service end belonging to the second operator, and then the second service end forwards the request to the first service end according to the IP address of the first service end, namely, the client establishes network connection with the first service end through the second service end, when a subsequent client requests resources from the first service end, the first service end firstly sends the resources to the second service end, and then the second service end forwards the resources to the client, because the second service end belongs to the second operator, the second operator does not limit the communication speed between the client and the second service end through the network of the second operator, therefore, the method can improve the communication experience of the user.

In a first aspect, a communication method is provided, which is applied in a scenario of a multipath transmission control protocol MPTCP transmission, and is performed by a client, and includes: sending a first TCP message to a first service end through a network of a first operator, wherein the first TCP message requests to establish network connection with the first service end; sending a second TCP message to a second server through a network of a second operator, wherein the second TCP message requests to establish network connection with the second server, the second TCP message comprises an IP address of the first server, and the first TCP message and the second TCP message correspond to the same MPTCP session; the communication quality between the client and the first service end through the network of the first operator is better than the communication quality between the client and the first service end through the network of the second operator, the IP address of the first service end is used for generating a fourth TCP packet by the second service end according to the second TCP packet and the IP address of the first service end under the condition that the IP address of the first service end is different from the IP address of the second service end, and the fourth TCP packet is used for establishing connection between the second service end and the first service end.

In the above solution, in an MPTCP scenario, in order to avoid that a first operator limits a communication speed between a client and a first service end through a network of a second operator due to inconsistency of the operators, when the client initially establishes a network connection with the first service end, the client first sends a request for establishing a network connection carrying an IP address of the first service end to the second service end, and then the second service end forwards the request to the first service end according to the IP address of the first service end, so that when a subsequent client requests a resource from the first service end, the first service end first sends the resource to the second service end, and then the second service end forwards the resource to the client, because the second service end belongs to the second operator, the second operator does not limit the communication speed between the client and the second service end through the network of the second operator, therefore, the method can improve the communication experience of the user.

Based on the above scheme, it can be inferred that the communication method provided by the present application can be extended to the following implementation modes and has the following beneficial effects: in an MPTCP scenario, in order to avoid that due to inconsistency of operators, a second operator limits a communication speed between a client and a second service end through a network of a first operator, when the client initially establishes a network connection with the second service end, the client first sends a request for establishing the network connection carrying an IP address of the second service end to the first service end, and then the first service end forwards the request to the second service end according to the IP address of the second service end, so that when a subsequent client requests a resource from the second service end, the second service end first sends the resource to the first service end, and then the first service end forwards the resource to the client, and since the first service end belongs to the first operator, the first operator does not limit the communication speed between the client and the first service end through the network of the first operator, therefore, the method can improve the communication experience of the user.

With reference to the first aspect, in certain implementation manners of the first aspect, the first TCP packet includes a mobile country code MCC and a mobile network code MNC of the second operator, and the MCC and the MNC of the second operator are used by the first service end to determine whether the first operator and the second operator belong to the same operator.

In the above scheme, since the first TCP packet is sent to the first service end, and the first TCP packet carries the mobile country code MCC and the mobile network code MNC of the second operator, the first service end can determine whether the first operator and the second operator are the same operator according to the information carried by the first TCP packet, and further determine whether to send the IP address of the second service end to the client, and when it is determined that the first operator and the second operator are different operators, the IP address of the second service end is sent to the client.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, an IP address of the first server is carried in the first TCP option of the second TCP packet.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the IP address of the first server is obtained by the client by querying a DNS server of the first operator.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the method further includes: and receiving a third TCP message sent by the first service end, wherein the third TCP message comprises an IP address of the second service end.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the IP address of the second server is carried in the second TCP option of the third TCP packet.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the IP address of the second server is obtained by the client by querying a DNS server of the second operator.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the method further includes: sending a fifth TCP packet to the first server through the network of the first operator, where the fifth TCP packet is used to request a resource of a first service from the first server; receiving a sixth TCP message from the first server, wherein the sixth TCP message carries the resource of the first service; sending a seventh TCP packet to the second server through the network of the second operator, where the seventh TCP packet is used to request the second server for the resource of the first service, the seventh TCP packet and the IP address of the first server are used by the second server to generate an eighth TCP packet, the eighth TCP packet is used to request the first service for the resource of the first service, and the eighth TCP packet is sent from the second server to the first server; receiving a ninth TCP message from the second server, where the ninth TCP message carries the resource of the first service, and the ninth TCP message is sent by the first server to the second server.

In a second aspect, a communication method is provided, and the method is applied in a scenario of MPTCP transmission, and includes: a client sends a first Transmission Control Protocol (TCP) message to a first service end through a network of a first operator, wherein the first TCP message requests to establish network connection with the first service end; the first server establishes network connection with the client according to the first TCP message; the client sends a second TCP message to a second server through a network of a second operator, the second TCP message requests to establish network connection with the second server, the second TCP message comprises an IP address of the first server, and the first TCP message and the second TCP message correspond to the same MPTCP session; under the condition that the IP address of the first service end is different from the IP address of the second service end, the second service end generates a fourth TCP message according to the second TCP message and the IP address of the first service end, the fourth TCP message requests to establish network connection with the first service end, and the destination address of the fourth TCP message is the IP address of the first service end; the second server sends the fourth TCP message to the first server; and the first server establishes network connection with the second server according to the fourth TCP message, wherein the communication quality between the client and the first server through the network of the first operator is superior to the communication quality between the client and the first server through the network of the second operator.

With reference to the second aspect, in some implementation manners of the second aspect, the IP address of the first server is carried in the first TCP option of the second TCP packet.

With reference to the second aspect, in some implementations of the second aspect, the IP address of the first server is obtained by the client by querying a DNS server of the first operator.

With reference to the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the method further includes: the first server acquires the IP address of the second server; and the first server side sends a third TCP message to the client side, wherein the third TCP message comprises the IP address of the second server side.

With reference to the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the acquiring, by the first server, an IP address of the second server includes: the first server side acquires a domain name of the second server side configured on the first server side; and the first server acquires the IP address of the second server according to the domain name of the second server.

In the above scheme, the domain name of the second service end is configured on the first service end, so that the first service end can acquire the IP address of the second service end according to the domain name of the second service end.

With reference to the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the IP address of the second server is carried in the second TCP option of the third TCP packet.

With reference to the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, before the first server acquires the IP address of the second server, the method further includes: the first service end determines whether the first operator and the second operator are different operators.

In the above scheme, when the first service end determines that the first operator and the second operator are different operators, the first service end obtains the IP address of the second service end and sends the IP address of the second service end to the client.

With reference to the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the determining, by the first service end, whether the first operator and the second operator are different operators includes: and the first server determines whether the first operator and the second operator belong to the same operator or not according to the MCC and the MNC of the second operator.

With reference to the second aspect and the foregoing implementation manners, in some implementation manners of the second aspect, the IP address of the second server is obtained by the client by querying a DNS server of the second operator.

With reference to the second aspect and the foregoing implementations, in some implementations of the second aspect, the method further includes: the client sends a fifth TCP message to the first server through the network of the first operator, wherein the fifth TCP message is used for requesting the first server for the resource of the first service; the first server side sends a sixth TCP message to the client side according to the fifth TCP message, wherein the sixth TCP message carries the resource of the first service; the client sends a seventh TCP message to the second server through the network of the second operator, wherein the seventh TCP message is used for requesting the second server for the resource of the first service; the second server generates an eighth TCP packet according to the seventh TCP packet and the IP address of the first server, where the eighth TCP packet is used to request the first server for the resource of the first service, and a destination address of the eighth TCP packet is the IP address of the first server; the second server sends the eighth TCP message to the first server; the first server sends the ninth TCP message to the second server according to the eighth TCP message, wherein the ninth TCP message carries the resource of the first service; and the second server side sends the ninth TCP message to the client side.

In a third aspect, the present application provides an apparatus, included in an electronic device, that has functionality to implement the above aspects and the electronic device behavior in possible implementations of the above aspects. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above-described functions. Such as a display module or unit, a detection module or unit, a processing module or unit, etc.

Alternatively, the device may be the client or the server.

In a fourth aspect, the present application provides an electronic device, comprising: one or more processors; a memory; a plurality of application programs; and one or more computer programs. Wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions. The instructions, when executed by the electronic device, cause the electronic device to perform the communication method in any one of the possible implementations of any of the aspects above.

Optionally, the electronic device may further include: the system comprises a touch display screen and/or a camera, wherein the touch display screen comprises a touch-sensitive surface and a display;

optionally, the electronic device may be the client or the server.

In a fifth aspect, the present application provides an electronic device comprising one or more processors and one or more memories. The one or more memories are coupled to the one or more processors and the one or more memories are configured to store computer program code comprising computer instructions that, when executed by the one or more processors, cause the electronic device to perform the method of communication in any of the possible implementations of any of the aspects described above.

In a sixth aspect, the present application provides a computer-readable storage medium comprising computer instructions that, when executed on an electronic device, cause the electronic device to perform any one of the possible communication methods of the above aspects.

In a seventh aspect, the present application provides a computer program product, which, when run on an electronic device, causes the electronic device to perform any one of the possible communication methods of the above aspects.

Drawings

FIG. 1 is a system framework diagram provided by an embodiment of the present application;

FIG. 2 is a schematic block diagram of an electronic device provided by an embodiment of the application;

fig. 3 is a schematic diagram of a relative position of a TCP option in a TCP packet and a format of the TCP option provided in an embodiment of the present application;

fig. 4 is an interaction flow diagram of a communication method provided in an embodiment of the present application;

fig. 5 is another schematic flow chart of a communication method according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Fig. 1 shows a framework diagram of a transmission system suitable for an embodiment of the present application, where the transmission system includes at least one client, two network devices and two servers, where the two network devices belong to two different operators respectively, and the two servers belong to two different operators respectively. For convenience of description, hereinafter, two operators are respectively referred to as a first operator and a second operator, a network device belonging to the first operator is referred to as a network device of the first operator, a network device belonging to the second operator is referred to as a network device of the second operator, a service end belonging to the first operator is referred to as a first service end, and a service end belonging to the second operator is referred to as a second service end.

The client is connected with two networks, namely a first operator network and a second operator network, and after the client establishes network connection with the first service end and the second service end respectively, the client can communicate with the first service end through the first operator network and the second operator network based on MPTCP, and in addition, the client can communicate with the second service end through the first operator network and the second operator network based on MPTCP. The network of the first operator may include a cellular network, a broadband network, a Wireless-Fidelity (Wi-Fi) network, and the like of the first operator, and the network of the second operator may include a cellular network, a broadband network, a Wi-Fi network, and the like of the second operator. For example, in the embodiment of the present application, the network of the first operator may be a cellular network, and the network of the second operator may be a Wi-Fi network, or the network of the first operator may be a Wi-Fi network, and the network of the second operator may be a cellular network, or the network of the first operator may be a cellular network, and the network of the second operator may be a cellular network, which is not listed here again for brevity. Illustratively, in fig. 1, the network of the first operator is a Wi-Fi network and the network of the second operator is a cellular network.

A client may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. For example, the client may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a transceiver function, a Virtual Reality (VR) client, an Augmented Reality (AR) client, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a wearable device, a vehicle-mounted device, and the like.

A server, which may also be referred to as a server, for example, a Content Delivery Network (CDN) server. The server may be for serving the client, and the server may provide resources to the client, save client data, and the like.

The Network device may be a base station NodeB, an evolved NodeB (eNodeB), a Transmission Reception Point (TRP), a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system, a base station in a future mobile communication system or an Access node in a WiFi system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, a relay station, a vehicle-mounted device, a wearable device, a Network device in a PLMN Network for future evolution, or the like. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices.

For example, fig. 2 is a schematic structural diagram of an example of an electronic device 200 according to an embodiment of the present disclosure. The electronic device 200 may be a client or a server, and the electronic device 200 may include a processor 210, a memory 220, a communication module 230, and the like.

Processor 210 may include one or more processing units, among others, and memory 220 for storing program codes and data. In an embodiment of the present application, the processor 210 may execute computer-executable instructions stored by the memory 220 for controlling and managing actions of the electronic device 200.

The communication module 230 may be used for communication between various internal modules of the electronic device 200, communication between the electronic device 200 and other external electronic devices, or the like. For example, if the electronic device 200 communicates with other electronic devices through a wired connection, the communication module 230 may include an interface, for example, a USB interface, where the USB interface may be an interface conforming to a USB standard specification, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The USB interface may be used to connect a charger to charge the electronic device 200, and may also be used to transmit data between the electronic device 200 and a peripheral device. And the earphone can also be used for connecting an earphone and playing audio through the earphone. The interface may also be used to connect other electronic devices, such as AR devices and the like.

Alternatively, the communication module 230 may include an audio device, a radio frequency circuit, a bluetooth chip, a wireless fidelity (Wi-Fi) chip, a near-field communication (NFC) module, and the like, and the interaction between the electronic device 300 and other electronic devices may be implemented in many different ways.

Optionally, the electronic device 200 may further include a display screen 240, and the display screen 240 may display images or videos in the human-computer interaction interface.

Optionally, the electronic device 200 may also include peripheral devices 250, such as a mouse, keyboard, speakers, microphone, and the like.

It should be understood that the structure of the electronic device 200 is not specifically limited by the embodiments of the present application, except for the various components or modules listed in fig. 2. In other embodiments of the present application, the electronic device 200 may also include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

After the client establishes network connection with the first service end and the second service end respectively, the client can send two requests for the same service to the first service end through the network of the first operator and the network of the second operator, the first service end sends two parts of resources requested by the client to the client through the network of the first operator and the network of the second operator respectively according to the two received requests, and the client integrates the two received parts of resources to obtain the requested resources.

However, since the operator to which the first service end belongs is the first operator, at this time, when the client requests the resource from the first service end through the network of the second operator, since the first operator and the second operator are different operators, the first operator may limit the communication speed of the client when communicating with the first service end through the network of the second operator, or even block the communication between the client and the first service end, at this time, the speed of the client requesting the resource through the network of the second operator may be reduced, or even the client may not request the resource from the service end through the network of the second operator, which affects the communication experience of the user.

Similarly, after the client establishes network connections with the first server and the second server, the client may also initiate two requests for the same service to the second server through the network of the first operator and the network of the second operator, the second server sends two parts of resources requested by the client to the client through the network of the first operator and the network of the second operator respectively according to the two received requests, and the client integrates the two received parts of resources to obtain the requested resources.

However, since the operator to which the second service end belongs is the second operator, at this time, when the client requests the resource to the second service end through the network of the first operator, since the first operator and the second operator are different operators, the second operator may limit the communication speed of the client when communicating with the second service end through the network of the first operator, or even block the communication between the client and the second service end, at this time, the speed of the client requesting the resource through the network of the first operator may be reduced, or even the client may not request the resource to the second service end through the network of the first operator, which affects the communication experience of the user.

In view of this, an embodiment of the present application provides a communication method, in an MPTCP scenario, in order to avoid that a first operator limits a communication speed between a client and a first service end through a network of a second operator due to inconsistency of the operators, when the client initially establishes a network connection with the first service end, the client first sends a request for establishing a network connection carrying an IP address of the first service end to the second service end, and then the second service end forwards the request to the first service end according to the IP address of the first service end, so that when a subsequent client requests a resource from the first service end, the first service end first sends the resource to the second service end, and then the second service end forwards the resource to the client, because the second service end belongs to the second operator, the second operator does not limit the communication speed between the client and the second service end through the network of the second operator, therefore, the method can improve the communication experience of the user.

Similarly, in an MPTCP scenario, in order to avoid that the second operator limits the communication speed of the client between the network of the first operator and the second service end due to the inconsistency of the operators, when the client initially establishes a network connection with the second service end, the client first sends a request for establishing a network connection carrying an IP address of the second service end to the first service end, and then the first service end forwards the request to the second service end according to the IP address of the second service end, so that when a subsequent client requests a resource from the second service end, the second service end first sends the resource to the first service end, and then the first service end forwards the resource to the client, because the first service end belongs to the first operator, the first operator does not limit the communication speed of the client between the network of the first operator and the first service end, therefore, the method can improve the communication experience of the user.

The following explains the embodiments of the present application with terms.

1. An MPTCP session corresponds to multiple links, that is, a client and a server can transmit data traffic of an MPTCP session through multiple links.

2. The main chain and the slave chain take two links in an MPTCP scenario as an example, when a client establishes network connection with a certain server through a network of a first operator and a network of a second operator, respectively, a link where a request for establishing network connection sent earlier by the client is located is referred to as a main chain, and a link where a request for establishing network connection sent later is located is referred to as a slave chain. In this embodiment of the present application, when the client establishes network connections with the first service end through the network of the first operator and the network of the second operator, the client first sends a request for establishing network connections to the first service end, then sends a request for establishing network connections to the second service end, and then the second service end forwards the request to the first service end, so that a link where the request directly sent to the first service end is located may be referred to as a master link, and a link where the request is sent to the second service end first and then forwarded to the request of the first service end by the second service end is referred to as a slave link. It should be understood that the master and slave correspond to one MPTCP session, in other words, the master and slave serve one MPTCP session.

3. The TCP options, where the TCP header includes TCP options, and a TCP option has a specific physical meaning, for example, the TCP options in this embodiment may be a reserved field or an extended field, and is used to carry an Internet Protocol (IP) address of a server or information related to an operator, a relative position of the TCP options in the TCP message and a format of the TCP options may be as shown in fig. 3, where a type (Tag) field is used to describe a type of data (Value), a Length (Length) field is used to describe a Length of the data, and a Value field is used to describe a Value of the data.

The communication method 300 provided in the embodiment of the present application is described in detail below with reference to the transmission system shown in fig. 1, taking a scenario in which a client establishes network connections with a first service terminal through a network 1 of an operator and a network 2 of the operator as an example. Fig. 4 shows an interaction flow diagram of a communication method 300.

Step 301, a client sends a first TCP packet to a first service end through a network of a first operator, where the first TCP packet requests to establish a network connection with the first service end, and the first service end belongs to the first operator. Correspondingly, the first service end receives a first TCP message from the client end.

When the client establishes a network connection with the first service end through a network request of a first operator, in other words, when the client initiates a main chain establishment request, the client needs to send a first TCP packet to the first service end. Since the destination address of the first TCP packet is the IP address of the first service end, before sending the first TCP packet to the first service end, the client first needs to obtain the IP address of the first service end, for example, the client may query an Internet Protocol (IP) address of the first service end from a Domain Name System (DNS) server of a first operator, for example, the client may send the domain name of the first service end to a DNS server of the first operator, and the DNS server of the first operator obtains the IP address of the first service end according to the domain name of the first service end, and returns the IP address of the first service end to the client.

Step 302, the first server establishes a network connection with the client according to the first TCP packet.

Step 305, the client sends a second TCP packet to the second server through the network of the second operator, the second TCP packet requests to establish a network connection with the second server, the second TCP packet includes the IP address of the first server, the second server belongs to the second operator, and the second TCP packet and the first TCP packet correspond to an MPTCP session. Accordingly, the second server receives a second TCP packet from the client.

When the client establishes a network connection with the first server through a network request of a second operator, in other words, when the client initiates a slave link establishment request, the client will first send a second TCP packet to the second server. Since the destination address of the second TCP packet is the IP address of the second server, before sending the second TCP packet to the second server, the client needs to obtain the IP address of the second server first.

Mode 1

The client may query the DNS server of the second operator for the IP address of the second server, for example, the client may send the domain name of the second server to the DNS server of the second operator, and the DNS server of the second operator obtains the IP address of the second server according to the domain name of the second server and returns the IP address of the second server to the client.

Mode 2

The IP address of the second server may be sent by the first server to the client, and at this time, the following two cases exist:

case 1

The first server obtains an IP address of the second server, and sends the IP address of the second server to the client, at this time, the method 300 may further include the following steps:

step 303, the first server obtains the IP address of the second server.

Step 304, the first server sends a third TCP packet to the client, where the third TCP packet includes the IP address of the second server. Correspondingly, the client receives a third TCP message from the first server.

For example, the first server may obtain the IP address of the second server according to the domain name of the second server configured on the first server in advance. For example, the first server may send the domain name of the second server to a server storing a correspondence between the domain name and the IP address, and the server obtains the IP address of the second server according to the domain name of the second server and returns the IP address of the second server to the first server through the third TCP packet.

For example, the first TCP packet sent by the client to the first server may be a first synchronization establishment (SYN) message, and the third TCP packet returned by the first server to the client may be a first SYN-ACK message. After receiving the first SYN message, the first service end may bear the acquired IP address of the second service end in the second TCP option of the first SYN-ACK message. In other words, the first server may generate the second TCP option in the first SYN-ACK message according to the IP address of the second server, and the client acquires the IP address of the second server according to the second TCP option in the first SYN-ACK message. For example, the value of the type field of the second TCP option is 82, the type of the data field is an IP address, the value of the length field is 15, and the first 15 bits of data of the data field are the IP address of the second server.

Case 2

Before acquiring the IP address of the second server, the first server may first determine whether the first operator and the second operator are the same operator, and when it is determined that the first operator and the second operator are different operators, the first server may acquire the IP address of the second server and send the acquired IP address of the second server to the client through a third TCP packet. For the way for the first server to obtain the IP address of the second server, please refer to the related description in case 1, and for brevity, the description is omitted here.

For example, a first TCP packet sent by the client to the first service end may include a Mobile Country Code (MCC) of the second operator and a Mobile Network Code (MNC) of the second operator, and the first service end may determine, according to the MCC of the second operator and the MNC of the second operator, whether the first operator and the second operator are the same operator, and when it is determined that the first operator and the second operator are different operators, the first service end bears an IP address of the second service end in a third TCP packet, and sends the third TCP packet to the client.

For example, the MCC of the second operator carried in the first TCP message is 460, the MNC of the second operator carried in the first TCP message is 00, the first service end may further determine that the second operator is china mobile, and assuming that the MCC of the first operator is 460 and the MNC of the first operator is 01, the first service end may determine that the first operator is china unicom, and further determine that the first operator and the second operator are different operators, the first service end loads the IP address of the second service end in the third TCP message, and sends the third TCP message to the client.

For example, the first TCP packet sent by the client to the first server may be a first SYN message, and the third TCP packet returned by the first server to the client may be a first SYN-ACK message. The client may bear the MCC of the second operator and the MNC of the second operator in the third TCP option of the first SYN message, in other words, the client may generate the third TCP option of the first SYN message according to the MCC of the second operator and the MNC of the second operator, and the first server may obtain the MCC of the second operator and the MNC of the second operator according to the third TCP option in the first SYN message. For example, the value of the type field of the third TCP option is 81, the type of the data field is related information of the second operator, the value of the length field is 8, and the first 8 bits of data of the data field are related information of the second operator. The information about the second operator here includes the MCC of the second operator and the MNC of the second operator.

After the first service end receives the first SYN message, assuming that the first service end determines that the first operator and the second operator are different operators according to the related information of the second operator carried in the first SYN message, in this case, the first service end may obtain an IP address of the second service end, and load the obtained IP address of the second service end in the second TCP option of the first SYN-ACK message. In other words, the first server may generate the second TCP option in the first SYN-ACK message according to the IP address of the second server, and the client acquires the IP address of the second server according to the second TCP option in the first SYN-ACK message. For example, the value of the type field of the second TCP option is 82, the type of the data field is an IP address, the value of the length field is 15, and the first 15 bits of data of the data field are the IP address of the second server.

For example, in step 305, when the client sends the second TCP packet to the second server, the IP address of the first server may be loaded in the first TCP option of the second TCP packet, in other words, the client may generate the first TCP option according to the obtained IP address of the first server. For example, the value of the type field of the first TCP option is 82, the type of the data field is an IP address, the value of the length field is 6, and the first 6 bits of data of the data field are the IP address of the first service end. And after receiving the second TCP message, the second service end acquires the IP address of the first service end according to the first TCP option in the second TCP message.

For example, the second TCP packet sent by the client to the second server may be a second SYN message, and the client may bear the IP address of the first service end in the first TCP option of the second SYN message, in other words, the client may generate the first TCP option of the second SYN message according to the IP address of the first service end, and the second service end obtains the IP address of the first service end according to the first TCP option of the second SYN message. For example, the value of the type field of the first TCP option is 82, the type of the data field is an IP address, the value of the length field is 14, and the first 14 bits of data of the data field are the IP address of the first service end.

For example, the IP address of the first service end may be obtained by the client according to the manner of obtaining the IP address of the first service end described in step 301, and in addition, the IP address of the first service end may be obtained by the following manner:

for example, the first TCP packet sent by the client to the first service end may be a first SYN message, and after receiving the first SYN message, the first service end may return a first SYN-ACK message to the client, where an IP address of the first service end may be carried in a fourth TCP option of the first SYN-ACK message. In other words, the first service end may generate the fourth TCP option in the first SYN-ACK message according to its own IP address. For example, the value of the type field of the fourth TCP option is 82, the type of the data field is an IP address, the value of the length field is 10, and the data of the first 10 bits of the data field is the IP address of the first service end.

Step 306, under the condition that the IP address of the first service end is different from the IP address of the second service end, the second service end generates a fourth TCP message according to the second TCP message and the IP address of the first service end, the fourth TCP message requests to establish network connection with the first service end, and the destination address of the fourth TCP message is the IP address of the first service end.

For example, after the second server obtains the IP address of the first server through the second TCP packet, it may be determined whether the IP address of the first server is different from the IP address of the second server.

Step 307, the second server sends the fourth TCP packet to the first server. Correspondingly, the first service end receives a fourth TCP message from the second service end. Since the fourth TCP packet is only the destination address of the packet changed relative to the second TCP packet, when the second server sends the fourth TCP packet to the first server, it is equivalent to forward the second TCP packet to the first server.

And 308, the first server establishes network connection with the second server according to the fourth TCP message.

After the first server establishes network connection with the second server, which is equivalent to that the first server establishes network connection between the clients through the second server, when the subsequent clients request resources from the first server through the network of the second operator, the first server returns the resources to the second server, and then the second server sends the resources to the clients. Since the second service end belongs to the second operator, the second operator does not limit the communication speed between the client and the second service end through the network of the second operator.

Through steps 301 to 308, a network connection is established between the client and the first service end, and meanwhile, a network connection is also established between the client and the first service end through the second service end, and then, the client can request resources from the first service end based on MPTCP. The method 300 may then further include the steps of:

step 309, the client sends a fifth TCP packet to the first server, and the fifth TCP packet requests the first server for the resource of the first service.

And step 310, the first server sends a sixth TCP message to the client according to the fifth TCP message, wherein the sixth TCP message carries the resource of the first service.

In step 311, the client sends a seventh TCP packet to the second server, and the seventh TCP packet requests the second server for the resource of the first service.

In step 312, the second service end generates an eighth TCP message according to the seventh TCP message and the IP address of the first service end, where the eighth TCP message requests the first service end for the resource of the first service, and a destination address of the eighth TCP message is the IP address of the first service end.

Step 313, the second service end sends the eighth TCP packet to the first service end.

And step 314, the first server sends a ninth TCP packet to the second server according to the eighth TCP packet, where the ninth TCP packet carries the resource of the first service.

And 315, the second server sends a ninth TCP message to the client.

Illustratively, when a user plays a video on a client, the client sends a fifth TCP packet to the first server through the network of the first operator, and the first server sends a sixth TCP packet to the client according to the fifth TCP packet, where the sixth TCP packet carries a resource required for playing the video.

After the fifth TCP packet is sent to the first service end, the client also sends a seventh TCP packet to the second service end through the network of the second operator, the second service end generates an eighth TCP packet according to the seventh TCP packet and the IP address of the first service end, and sends the eighth TCP packet to the first service end, the eighth TCP packet requests the first service end for the resource of the first service, and the destination address of the eighth TCP packet is the IP address of the first service end.

And the first server returns a ninth TCP message to the second server according to the eighth TCP message, the ninth TCP message also carries the resources required by the video playing, and after receiving the ninth TCP message, the second server sends the ninth TCP message to the client.

After receiving the sixth TCP packet from the first service segment and the ninth TCP packet from the second service end, the client may integrate the resource required for playing the video carried in the sixth TCP packet and the resource required for playing the video carried in the ninth TCP packet, so as to obtain the final required resource. For example, the resource required for playing the video carried in the sixth TCP packet and the resource required for playing the video carried in the ninth TCP packet may have repeated portions, and the client may remove the repeated portions to obtain the final required resource. It should be understood that the first service may be a playing service of the video.

Fig. 5 is another schematic flow chart illustrating steps 301 to 308 of the method 300 according to the present embodiment.

It should be understood that, in the embodiment of the present application, when the client sends a message to the first service end, actually, the client sends the message to the network device of the first operator first, and then the network device of the first operator sends the message to the first service end, similarly, when the first service end sends the message to the client, the first service end sends the message to the network device of the first operator first, and then the network device of the first operator sends the message to the client.

When the client sends the message to the second server, the client actually sends the message to the network device of the second operator first, and then the network device of the second operator sends the message to the second server.

It should be noted that the format of each TCP option in the embodiment of the present application is only described by way of example, the present application does not have any limitation on the format of each option, and the position relationship and the length between each field in each option are also not limited, and each option may include more or fewer fields mentioned in the embodiment of the present application, which is not limited by the present application.

It should be further noted that, in the embodiment of the present application, the carrying of the IP address or the related information of the operator in the TCP option is only described by way of example, and the application does not specifically limit the manner in which the TCP message carries the IP address or the related information of the operator.

It should be further noted that, the communication method provided by the present application is described above only by taking a scenario in which the client establishes network connection with the first service end through the network 1 of the operator and the network 2 of the operator respectively, but this does not limit the present application.

It should be further noted that, in this embodiment of the present application, the first service end belongs to the first operator, and the second service end belongs to the second operator only in one scenario that the communication quality between the client and the first service end through the network of the first operator is better than the communication quality between the network of the second operator and the first service end, which is not limited to this application.

In this embodiment, the client and the server may be divided into functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of hardware. It should be noted that the division of the modules in this embodiment is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

It should be noted that all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

The client and the server provided by the embodiment are used for executing the communication method, so that the same effect as the implementation method can be achieved. In case of an integrated unit, the client and the server may comprise a processing module, a storage module and a communication module, respectively. The processing module may be configured to control and manage actions of the client and the server, and for example, may be configured to support the electronic device to execute steps executed by the processing unit. The storage module can be used for supporting the client and the server to execute the stored program codes and data, etc. And the communication module can be used for supporting the communication between the client and the server and other equipment.

The processing module may be a processor or a controller. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., a combination of one or more microprocessors, a Digital Signal Processing (DSP) and a microprocessor, or the like. The storage module may be a memory. The communication module may specifically be a radio frequency circuit, a bluetooth chip, a Wi-Fi chip, or other devices that interact with other electronic devices.

In an embodiment, when the processing module is a processor and the storage module is a memory, the electronic device according to this embodiment may be a device having the structure shown in fig. 2.

The present embodiment also provides a computer-readable storage medium, in which computer instructions are stored, and when the computer instructions are executed on an electronic device, the electronic device executes the above related method steps to implement the communication method in the above embodiment.

The present embodiment also provides a computer program product, which when running on a computer, causes the computer to execute the relevant steps described above, so as to implement the communication method in the above embodiments.

In addition, embodiments of the present application also provide an apparatus, which may be specifically a chip, a component or a module, and may include a processor and a memory connected to each other; the memory is used for storing computer execution instructions, and when the apparatus runs, the processor may execute the computer execution instructions stored by the memory, so that the chip executes the communication method in the above method embodiments.

The electronic device, the computer storage medium, the computer program product, or the chip provided in this embodiment are all configured to execute the corresponding method provided above, so that the beneficial effects achieved by the electronic device, the computer storage medium, the computer program product, or the chip may refer to the beneficial effects in the corresponding method provided above, and are not described herein again.

Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules as needed, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a module or a unit may be divided into only one logic function, and may be implemented in other ways, for example, a plurality of units or components may be combined or integrated into another apparatus, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

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

Claims

1. A communication method, applied to a scenario of multi-path transmission control protocol (MPTCP) transmission, the method being performed by a client and comprising:

sending a first TCP message to a first service end through a network of a first operator, wherein the first TCP message requests to establish network connection with the first service end;

sending a second TCP message to a second server through a network of a second operator, wherein the second TCP message requests to establish network connection with the second server, and the second TCP message comprises an IP address of the first server;

the first TCP message and the second TCP message correspond to the same MPTCP session, and the IP address of the first service end is used for establishing connection between the second service end and the first service end.

2. The method according to claim 1, wherein the first TCP packet includes a mobile country code MCC and a mobile network code MNC of the second operator, and the MCC and MNC of the second operator are used by the first service end to determine whether the first operator and the second operator belong to the same operator.

3. The method according to claim 1 or 2, wherein the IP address of the first server is carried in the first TCP option of the second TCP packet.

4. A method according to any of claims 1 to 3, wherein the IP address of the first service is obtained by the client by querying a DNS server of the first operator.

5. The method according to any one of claims 1 to 4, further comprising:

and receiving a third TCP message sent by the first service end, wherein the third TCP message comprises an IP address of the second service end.

6. The method according to claim 5, wherein the IP address of the second server is carried in the second TCP option of the third TCP packet.

7. Method according to any of claims 1 to 4, characterized in that the IP address of the second server is obtained by the client by querying a DNS server of the second operator.

8. The method according to any one of claims 1 to 7, further comprising:

sending a fifth TCP packet to the first server through the network of the first operator, where the fifth TCP packet is used to request a resource of a first service from the first server;

receiving a sixth TCP message from the first server, wherein the sixth TCP message carries the resource of the first service;

sending a seventh TCP packet to the second server through the network of the second operator, where the seventh TCP packet is used to request the second server for the resource of the first service, the seventh TCP packet and the IP address of the first server are used by the second server to generate an eighth TCP packet, the eighth TCP packet is used to request the first service for the resource of the first service, and the eighth TCP packet is sent from the second server to the first server;

receiving a ninth TCP message from the second server, where the ninth TCP message carries the resource of the first service, and the ninth TCP message is sent by the first server to the second server.

9. A communication method is applied to a scene of multi-path transmission control protocol (MPTCP) transmission, and comprises the following steps:

a client sends a first Transmission Control Protocol (TCP) message to a first service end through a network of a first operator, wherein the first TCP message requests to establish network connection with the first service end;

the first server establishes network connection with the client according to the first TCP message;

the client sends a second TCP message to a second server through a network of a second operator, the second TCP message requests to establish network connection with the second server, and the second TCP message comprises an IP address of the first server;

the second server generates a fourth TCP message according to the second TCP message and the IP address of the first server, and the second server sends the fourth TCP message to the first server;

the first server establishes network connection with the second server according to the fourth TCP message;

wherein the first TCP message and the second TCP message correspond to the same MPTCP session.

10. The method according to claim 9, wherein the IP address of the first server is carried in the first TCP option of the second TCP packet.

11. Method according to claim 9 or 10, wherein the IP address of the first service end is obtained by the client by querying a DNS server of the first operator.

12. The method according to any one of claims 9 to 11, further comprising:

the first server acquires the IP address of the second server;

and the first server side sends a third TCP message to the client side, wherein the third TCP message comprises the IP address of the second server side.

13. The method of claim 12, wherein the obtaining, by the first server, the IP address of the second server comprises:

the first server side acquires a domain name of the second server side configured on the first server side;

and the first server acquires the IP address of the second server according to the domain name of the second server.

14. The method according to claim 12 or 13, wherein the IP address of the second server is carried in the second TCP option of the third TCP packet.

15. The method according to any one of claims 12 to 14, wherein before the first server obtains the IP address of the second server, the method further comprises:

the first service end determines whether the first operator and the second operator are different operators.

16. The method according to claim 15, wherein the first TCP packet includes an MCC and an MNC of the second operator, and the determining, by the first service end, whether the first operator and the second operator are different operators comprises:

and the first server determines whether the first operator and the second operator belong to the same operator or not according to the MCC and the MNC of the second operator.

17. Method according to any of claims 9 to 11, characterized in that the IP address of the second server is obtained by the client by querying a DNS server of the second operator.

18. The method according to any one of claims 9 to 17, further comprising:

the client sends a fifth TCP message to the first server through the network of the first operator, wherein the fifth TCP message is used for requesting the first server for the resource of the first service;

the first server side sends a sixth TCP message to the client side according to the fifth TCP message, wherein the sixth TCP message carries the resource of the first service;

the client sends a seventh TCP message to the second server through the network of the second operator, wherein the seventh TCP message is used for requesting the second server for the resource of the first service;

the second server generates an eighth TCP packet according to the seventh TCP packet and the IP address of the first server, where the eighth TCP packet is used to request the first server for the resource of the first service, and a destination address of the eighth TCP packet is the IP address of the first server;

the second server sends the eighth TCP message to the first server;

the first server sends the ninth TCP message to the second server according to the eighth TCP message, wherein the ninth TCP message carries the resource of the first service;

and the second server side sends the ninth TCP message to the client side.

19. An electronic device, comprising: one or more processors; a memory; a module installed with a plurality of applications; and one or more programs, wherein the one or more programs are stored in the memory, which when executed by the processor, cause the electronic device to perform the method of any of claims 1-8, or cause the electronic device to perform the method of any of claims 9-18.

20. A computer-readable storage medium having stored thereon computer instructions which, when run on an electronic device, cause the electronic device to perform the method of any of claims 1-8 or cause the electronic device to perform the method of any of claims 9-18.

21. A computer program product, which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 8 or causes the electronic device to perform the method of any one of claims 9 to 18.