CN114531472B

CN114531472B - Communication method and electronic equipment

Info

Publication number: CN114531472B
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: 2024-01-09
Anticipated expiration: 2040-10-30
Also published as: CN114531472A

Abstract

In the multi-path transmission control protocol 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 request for establishing network connection carrying an Internet Protocol (IP) address of the first service end is firstly sent to a 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, so that when a subsequent client requests resources to 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.

Description

Communication method and electronic equipment

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 larger aggregate bandwidth is provided through the dual networks or the multiple networks, so that users enjoy smoother communication experience.

For example, the client and the server may communicate based on a multi-path transmission control protocol (multipath transmission control protocol, MPTCP), where MPTCP is a transmission protocol that is transmitted concurrently 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, and the server may send 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 according to the two received requests, where the client integrates the two received parts of resources to obtain the requested resources.

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

Disclosure of Invention

In the case of MPTCP, when a client requests to establish a 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 a network connection carrying an IP address of the first service end to a 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, i.e. the client establishes a network connection with the first service end through the second service end, when a subsequent client requests a resource from the first service end, the first service end firstly sends the resource to the second service end, and then the second service end forwards the resource to the client.

In a first aspect, a communication method is provided, applied to a scenario of multipath transmission control protocol MPTCP transmission, where the method is executed by a client, and includes: a first TCP message is sent to a first service end through a network of a first operator, and 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 corresponds to the same MPTCP session with the second TCP message; 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 message according to the IP addresses of the second TCP message and the first service end when the IP address of the first service end is different from the IP address of the second service end, and the fourth TCP message is used for establishing connection between the second service end and the first service end.

In the above scheme, in order to avoid the inconsistency of operators, the first operator limits the communication speed between the client and the first service end through the network of the second operator, when the client initially establishes network connection with the first service end, the client sends a request for establishing network connection carrying the 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 the subsequent client requests resources from the first service end, the first service end sends the resources to the second service end, and then the second service end forwards the resources to the client.

Based on the scheme, it can be inferred that the communication method provided by the application can be extended to the following implementation modes and has the following beneficial effects: in the MPTCP scene, in order to avoid the inconsistency of operators, a second operator limits the communication speed between a client and a second service end through a network of a first operator, when the client initially establishes network connection with the second service end, the client firstly sends a request for establishing 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 resources to the second service end, the second service end firstly sends the resources to the first service end, and then the first service end forwards the resources to the client.

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, where the MCC and MNC of the second operator are used by the first server 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, the first TCP packet carries the mobile country code MCC and the mobile network code MNC of the second operator, so that 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, further determine whether to send the IP address of the second service end to the client, and when determining that the first operator and the second operator are different operators, send the IP address of the second service end 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 a 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, an IP address of the first service side is obtained by the client through querying a DNS server of the first operator.

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

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

With reference to the first aspect and the foregoing implementation manner, in some implementation manners of the first aspect, the method further includes: a fifth TCP message is sent to the first service end through the network of the first operator, and the fifth TCP message is used for requesting resources of a first service from the first service end; receiving a sixth TCP message from the first server, wherein the sixth TCP message carries the resources of the first service; a seventh TCP message is sent to the second service end through the network of the second operator, the seventh TCP message is used for requesting the resource of the first service from the second service end, the seventh TCP message and the IP address of the first service end are used for generating an eighth TCP message by the second service end, the eighth TCP message is used for requesting the resource of the first service from the first service end, and the eighth TCP message is sent to the first service end by the second service end; and receiving a ninth TCP message from the second server, wherein the ninth TCP message carries the resources 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, where the method is applied in a scenario of MPTCP transmission, and includes: the method comprises the steps that a client sends a first Transmission Control Protocol (TCP) message to a first service end through a network of a first operator, and 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, 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; 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 better than 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 implementations of the second aspect, the IP address of the first server is carried in a 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 service end is obtained by the client by querying a DNS server of the first operator.

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

With reference to the second aspect and the foregoing implementation manner, in some implementation manners of the second aspect, the obtaining, by the first server, an IP address of the second server includes: the first server side obtains the 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 obtain 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, an IP address of the second service side is carried in a second TCP option of the third TCP packet.

With reference to the second aspect and the foregoing implementation manner, in some implementation manners of the second aspect, before the first server obtains an IP address of the second server, the method further includes: the first server 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 can acquire the IP address of the second service end and send 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 first TCP packet includes MCC and MNC of the second operator, and the determining, by the first service end, whether the first operator and the second operator are different operators includes: and the first service end determines whether the first operator and the second operator belong to the same operator according to the MCC and MNC of the second operator.

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

With reference to the second aspect and the foregoing implementation manner, in some implementation manners 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 resources 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 resources 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 resources of the first service; the second server generates an eighth TCP message according to the seventh TCP message and the IP address of the first server, wherein the eighth TCP message is used for requesting the first service resource from the first server, and the destination address of the eighth TCP message is the IP address of the first server; the second server sends the eighth TCP message to the first server; the first server side sends the ninth TCP message to the second server side according to the eighth TCP message, wherein the ninth TCP message carries the resources of the first service; and the second server sends the ninth TCP message to the client.

In a third aspect, the present application provides an apparatus, which is included in an electronic device, and which has a function of implementing the above aspects and the behavior of the electronic device in possible implementations of the above aspects. The functions may be realized by hardware, or may be realized by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions described above. 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, including: one or more processors; a memory; a plurality of applications; and one or more computer programs. Wherein one or more computer programs are stored in the memory, the one or more computer programs comprising instructions. The instructions, when executed by an electronic device, cause the electronic device to perform the communication method in any of the possible implementations of the above aspect.

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

Alternatively, 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, the one or more memories being operable to store computer program code comprising computer instructions that, when executed by the one or more processors, cause the electronic device to perform the communication method in any of the possible implementations of the above.

In a sixth aspect, the present application provides a computer readable storage medium comprising computer instructions which, when run 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 for, when run on an electronic device, causing 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 present application;

FIG. 3 is a schematic diagram of the relative positions of TCP options in a TCP message and the format of the TCP options provided by 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 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 frame diagram of a transmission system applicable to an embodiment of the present application, where the transmission system at least includes one client, two network devices and two service ends, where the two network devices respectively belong to two different operators, and the two service ends respectively belong to two different operators. For convenience of description, the two operators are respectively denoted as a first operator and a second operator, the network device belonging to the first operator is denoted as a network device of the first operator, the network device belonging to the second operator is denoted as a network device of the second operator, the service end belonging to the first operator is denoted as a first service end, and the service end belonging to the second operator is denoted 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. The network of the first operator may include a cellular network of the first operator, a broadband network, a Wi-Fi (Wireless-Fidelity) network, and the like, and the network of the second operator may include a cellular network of the second operator, a broadband network, a Wi-Fi network, and the like. Illustratively, in the embodiments of the present application, the network of the first operator may be a cellular network, 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, 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 are not listed here 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 device. For example, the client may be a mobile phone (mobile phone), a tablet (Pad), a computer with transceiving functionality, a Virtual Reality (VR) client, an augmented reality (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 security (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.

The server, which may also be referred to as a server, is, for example, a content delivery network (content delivery network, CDN) server. The server may be configured to serve the client, 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 and reception point (transmission reception point, TRP), a 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, or may be a wireless controller in a cloud wireless access network (Cloud Radio Access Network, CRAN) scenario, or may be a relay station, a vehicle-mounted device, a wearable device, or a network device in a future evolved PLMN network. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device.

Fig. 2 is a schematic structural diagram of an electronic device 200 according to an embodiment of the present application. 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, among other things, one or more processing units, memory 220 for storing program codes and data. In the embodiment of the present application, the processor 210 may execute computer-executable instructions stored in the memory 220 for controlling and managing the 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. By way of example, if the electronic device 200 communicates with other electronic devices by way of a wired connection, the communication module 230 may include an interface, such as a USB interface, which may be an interface conforming to the USB standard specification, specifically, a Mini USB interface, a Micro USB interface, a USB Type C interface, etc. The USB interface may be used to connect a charger to charge the electronic device 200, or may be used to transfer data between the electronic device 200 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset. The interface may also be used to connect other electronic devices, such as AR devices, etc.

Alternatively, the communication module 230 may include an audio device, a radio frequency circuit, a bluetooth chip, a wireless fidelity (wireless fidelity, wi-Fi) chip, a near-field communication technology (NFC) module, etc., and the interaction between the electronic device 300 and other electronic devices may be implemented in a variety of different manners.

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

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 particularly limited in the embodiments of the present application, except for the various components or modules listed in fig. 2. In other embodiments of the present application, electronic device 200 may also include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements 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 initiate 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, and 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 received two requests, and the client integrates the received two 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 when the client communicates with the first service end through the network of the second operator, and 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 cannot 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 connection with the first service end and the second service end respectively, the client can initiate two requests for the same service to the second service end through the network of the first operator and the network of the second operator, the second 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 second service end belongs is the second operator, at this time, when the client requests the resource from 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 when the client communicates with the second service end through the network of the first operator, and 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 cannot request the resource from the second service end through the network of the first operator, which affects the communication experience of the user.

In view of this, in the MPTCP scenario, in order to avoid the inconsistency of operators, the first operator limits the communication speed between the client and the first service end through the network of the second operator, when the client initially establishes a network connection with the first service end, the client first sends a request for establishing the network connection carrying the 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 the subsequent client requests the 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.

Similarly, in the MPTCP scenario, in order to avoid that the second operator limits the communication speed between the client and the second server through the network of the first operator, when the client initially establishes a network connection with the second server, the client first sends a request for establishing the network connection carrying the IP address of the second server to the first server, and then the first server forwards the request to the second server according to the IP address of the second server, so that when the subsequent client requests the resource from the second server, the second server first sends the resource to the first server, and then the first server forwards the resource to the client.

Terms are used in the following description of the embodiments of the present application.

1. MPTCP session, one MPTCP session corresponds to multiple links, i.e., the client and the server may transmit data traffic of one MPTCP session through multiple links.

2. When the client establishes network connection with a certain server through the network of the first operator and the network of the second operator respectively, the link where the request for establishing network connection sent by the client earlier is called a main chain, and the link where the request for establishing network connection sent later is called a slave chain. In this embodiment of the present application, when the client establishes network connection with the first service end through the network of the first operator and the network of the second operator, the client sends a request for establishing network connection to the first service end first, then sends a request for establishing network connection 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 main link, and a link where the request firstly sent to the second service end and then forwarded to 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 chains correspond to one MPTCP session, in other words, the master and slave chains are serving one MPTCP session.

3. The TCP options, the TCP header includes a TCP option, one TCP option has a specific physical meaning, and by way of example, the TCP option in the embodiment of the present application may be a reserved field or an extended field, which is used to carry an internet protocol (internet protocol, IP) address of a server or related information of an operator, a relative position of the TCP option in the TCP packet and a format of the TCP option may be as shown in fig. 3, a type (Tag) field is used to describe a type of data (Value), a Length (Length) field is used to describe a Length of data, and a Value field is used to describe a Value of data.

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

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

When the client requests to establish a network connection with the first service end through the network of the first operator, in other words, when the client initiates the main link establishment request, the client needs to send a first TCP packet to the first service end. Because the destination address of the first TCP packet is the IP address of the first server, the client first needs to obtain the IP address of the first server before sending the first TCP packet to the first server, and the client may query the domain name naming system (domain name system, DNS) server of the first operator for the internet protocol (internet protocol, IP) address of the first server, for example, the client may send the domain name of the first server to the DNS server of the first operator, and the DNS server of the first operator obtains the IP address of the first server according to the domain name of the first server, and returns the IP address of the first server to the client.

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

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

When the client requests to establish a network connection with the first service end through the network of the second operator, in other words, when the client initiates the slave-chain establishment request, the client sends a second TCP packet to the second service end. Because the destination address of the second TCP packet is the IP address of the second server, the client first needs to obtain the IP address of the second server before sending the second TCP packet to the second server, and illustratively, the client may obtain the IP address of the second server in several ways as follows.

Mode 1

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

Mode 2

The IP address of the second service may be sent by the first service to the client, where the following two cases exist:

case 1

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

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

In step 304, the first server sends a third TCP packet to the client, where the third TCP packet includes an IP address of the second server. Accordingly, the client receives the third TCP packet from the first service end.

For example, the first service may obtain the IP address of the second service according to the domain name of the second service that is preconfigured on the first service. For example, the first service end may send the domain name of the second service end to a server storing a correspondence between the domain name and the IP address, where the server obtains the IP address of the second service end according to the domain name of the second service end, and returns the IP address of the second service end to the first service end through a third TCP packet.

Illustratively, the first TCP message sent by the client to the first server may be a first online establishment (SYN) message, and the third TCP message returned by the first server to the client may be a first SYN-ACK message. After the first service side receives the first SYN message, the obtained IP address of the second service side may be carried 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 obtains the IP address of the second server according to the second TCP option in the first SYN-ACK message. For example, the type field of the second TCP option has a value of 82, which represents the type of the data field as an IP address, the length field has a value of 15, and the first 15 bits of data representing the data field are the IP address of the second server.

Case 2

Before the first server obtains the IP address of the second server, it may first determine whether the first operator and the second operator are the same operator, and under the condition that the first operator and the second operator are different operators, the first server may obtain the IP address of the second server, and send the obtained IP address of the second server to the client through a third TCP packet. For the manner in which the first server obtains the IP address of the second server, please refer to the related description in case 1, and for brevity, details are not repeated here.

For example, the first TCP packet sent by the client to the first service may include a mobile country code (mobile country code, MCC) of the second operator and a mobile network code (mobile network code, MNC) of the second operator, and the first service may determine whether the first operator and the second operator are the same operator according to the MCC of the second operator and the MNC of the second operator, and when determining that the first operator and the second operator are different operators, the first service carries the IP address of the second service 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 packet is 460, the MNC of the second operator carried in the first TCP packet is 00, the first server may further determine that the second operator is a china mobile, assuming that the MCC of the first operator is 460, the MNC of the first operator is 01, the first server may determine that the first operator is a china communication, further determine that the first operator and the second operator are different operators, and the first server carries the IP address of the second server in a third TCP packet and sends the third TCP packet to the client.

For example, the first TCP message sent by the client to the first server may be a first SYN message, and the third TCP message returned by the first server to the client may be a first SYN-ACK message. The client may carry 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 type field of the third TCP option has a value of 81, which represents the type of the data field as related information of the second operator, the length field has a value of 8, and the first 8 bits of data representing the data field is related information of the second operator. The related information of the second operator here includes MCC of the second operator and MNC of the second operator.

After the first service end receives the first SYN message, it is assumed 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, and in this case, the first service end may acquire the IP address of the second service end and 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 obtains the IP address of the second server according to the second TCP option in the first SYN-ACK message. For example, the type field of the second TCP option has a value of 82, which represents the type of the data field as an IP address, the length field has a value of 15, and the first 15 bits of data representing the data field are the IP address of the second server.

In step 305, the client may load the IP address of the first service end in the first TCP option of the second TCP packet when sending the second TCP packet to the second service end, in other words, the client may generate the first TCP option according to the acquired IP address of the first service end. For example, the type field of the first TCP option has a value of 82, which represents that the type of the data field is an IP address, the length field has a value of 6, and the first 6 bits of data representing the data field is the IP address of the first service end. After receiving the second TCP message, the second server obtains the IP address of the first server 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 carry the IP address of the first server 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 server, and the second server obtains the IP address of the first server according to the first TCP option of the second SYN message. For example, the type field of the first TCP option has a value of 82, which represents the type of the data field as an IP address, the length field has a value of 14, and the first 14 bits of data representing the data field are the IP address of the first service end.

The IP address of the first service may be obtained by the client according to the manner of obtaining the IP address of the first service described in step 301, and may be obtained by the following manners:

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

Step 306, when 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 packet according to the second TCP packet and the IP address of the first service end, where the fourth TCP packet requests to establish network connection with the first service end, and the destination address of the fourth TCP packet is the IP address of the first service end.

The second server obtains the IP address of the first server through the second TCP packet, and then determines whether the IP address of the first server is different from the IP address of the second server.

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

In step 308, the first server establishes a network connection with the second server according to the fourth TCP packet.

After the first server and the second server establish network connection, the first server is equivalent to establishing network connection between the first server and the client through the second server, and when the subsequent client requests the resource from the first server through the network of the second operator, the first server returns the resource to the second server, and then the second server sends the resource to the client. Since the second service side belongs to the second operator, the second operator does not limit the communication speed between the client side and the second service side 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 simultaneously, the client also establishes a network connection with the first service end through the second service end, and then, the client may request resources from the first service end based on MPTCP. At this point, the method 300 may further include the steps of:

in step 309, the client sends a fifth TCP packet to the first server, where the fifth TCP packet requests the first server for the resources of the first service.

In step 310, the first server sends a sixth TCP packet to the client according to the fifth TCP packet, where the sixth TCP packet carries the resources of the first service.

In step 311, the client sends a seventh TCP packet to the second server, and the second server requests the resources of the first service in the seventh TCP packet Wen Xiangdi.

In step 312, 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 requests the first server for the resource of the first service, and the destination address of the eighth TCP packet is the IP address of the first server.

In step 313, the second server sends an eighth TCP packet to the first server.

In 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 resources of the first service.

In step 315, the second server sends a ninth TCP packet to the client.

For example, when a user plays a video on a client, the client may send a fifth TCP packet to a first server through a network of a 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 resources required for playing the video.

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

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

After receiving the sixth TCP packet from the first service segment and the ninth TCP packet from the second service segment, the client may integrate the resources required for playing the video carried by the sixth TCP packet with the resources required for playing the video carried by the ninth TCP packet, to obtain the final required resources. For example, the resources required for playing the video carried by the sixth TCP packet and the resources required for playing the video carried by the ninth TCP packet may have repeated portions, and the client may remove the repeated portions to obtain the finally required resources. It should be understood that the first service may be a play service of the video.

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

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

It should be noted that, the format of each TCP option in the embodiment of the present application is merely described by way of example, the format of each option is not limited in this application, and the positional relationship and the length between each field in each option are not limited, and each option may include more or fewer fields mentioned in the embodiment of the present application, which is not limited in this 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 carrier in the TCP option is merely described by way of example, and the manner in which the TCP packet carries the IP address or the related information of the carrier is not particularly limited, and in particular implementation, the IP address or the related information of the carrier may also be carried in other fields of the TCP packet, which is not limited in this application.

It should be further noted that, the foregoing description is only given by taking a scenario in which the client side establishes network connection with the first service side through the network 1 of the operator and the network 2 of the operator, and this does not limit the present application, and the communication method provided in the present application is also applicable to a scenario in which the client side establishes network connection with the second service side through the network 1 of the operator and the network 2 of the operator, and the specific beneficial effects refer to the foregoing related description, which is omitted herein for brevity.

It should be further noted that, in the embodiment of the present application, the first service end belongs to a first operator, the second service end belongs to a second operator, which is merely one scenario that satisfies 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 client and the first service end through the network of the second operator, which is not limited by the present application, and it should be understood that the communication method provided by the present application is applicable to all scenarios 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 client and the first service end through the network of the second operator.

In this embodiment, the functional modules may be divided between the client and the server 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 modules described above may be implemented in hardware. It should be noted that, in this embodiment, the division of the modules is schematic, only one logic function is divided, and another division manner may be implemented in actual implementation.

It should be noted that, all relevant contents of each step related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.

The client and the server provided in this embodiment are configured to execute the above communication method, so that the same effects as those of the implementation method can be achieved. In case of an integrated unit, the client and the server may include 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, for example, may be configured to support the electronic device to execute steps executed by the processing unit. The storage module may be used to support the client and server to execute stored program code, data, and the like. And the communication module can be used for supporting the communication between the client and the server and other equipment.

Wherein the processing module may be a processor or a controller. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. A processor may also be a combination that performs computing functions, e.g., including one or more microprocessors, digital signal processing (digital signal processing, DSP) and microprocessor combinations, and the like. The memory module may be a memory. The communication module can be a radio frequency circuit, a Bluetooth chip, a Wi-Fi chip and other equipment which interact with other electronic equipment.

In one 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 having stored therein computer instructions which, when executed on an electronic device, cause the electronic device to perform the above-described related method steps to implement the communication method in the above-described embodiments.

The present embodiment also provides a computer program product which, when run on a computer, causes the computer to perform the above-mentioned related steps to implement the communication method in the above-mentioned 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 configured to store computer-executable instructions, and when the device is running, the processor may execute the computer-executable instructions stored in the memory, so that the chip performs 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 used to execute the corresponding methods provided above, so that the beneficial effects thereof can be referred to the beneficial effects in the corresponding methods provided above, and will not be described herein.

It will be appreciated by those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another apparatus, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

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

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or a part contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several instructions to cause a device (may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely 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 think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to 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, wherein the method is applied in a scenario of multipath transmission control protocol MPTCP transmission, the method being performed by a client, comprising:

a first TCP message is sent to a first service end through a network of a first operator, and 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 packet and the second TCP packet correspond to the same MPTCP session, and the IP address of the first service end is used to establish connection between the second service end and the first service end, where the first service end belongs to the first operator, and the second service end belongs to the second operator.

2. The method of claim 1, wherein the first TCP message includes a mobile country code MCC and a mobile network code MNC of the second operator, the MCC and MNC of the second operator being used by the first server 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 a first TCP option of the second TCP message.

4. The method according to claim 1 or 2, wherein the IP address of the first server is obtained by the client by querying a DNS server of the first operator.

5. The method according to claim 1 or 2, characterized in that the method further comprises:

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

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

7. The method according to claim 1 or 2, wherein 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 claim 1 or 2, characterized in that the method further comprises:

a fifth TCP message is sent to the first service end through the network of the first operator, and the fifth TCP message is used for requesting resources of a first service from the first service end;

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

a seventh TCP message is sent to the second service end through the network of the second operator, the seventh TCP message is used for requesting the resource of the first service from the second service end, the seventh TCP message and the IP address of the first service end are used for generating an eighth TCP message by the second service end, the eighth TCP message is used for requesting the resource of the first service from the first service end, and the eighth TCP message is sent to the first service end by the second service end;

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

9. A communication method, wherein the method is applied to a scenario of multipath transmission control protocol MPTCP transmission, and comprises:

The method comprises the steps that a client sends a first Transmission Control Protocol (TCP) message to a first service end through a network of a first operator, and 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, 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 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;

the first TCP packet and the second TCP packet correspond to the same MPTCP session, the first service side belongs to the first operator, and the second service side belongs to the second operator.

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

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

12. The method according to claim 9 or 10, characterized in that the method further comprises:

the first server side obtains the IP address of the second server side;

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

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

the first server side obtains the 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 of claim 12, wherein the IP address of the second server is carried in a second TCP option of the third TCP message.

15. The method of claim 12, wherein before the first server obtains the IP address of the second server, the method further comprises:

The first server determines whether the first operator and the second operator are different operators.

16. The method of claim 15, wherein the first TCP message includes MCC and MNC of the second operator, and wherein the first server determines whether the first operator and the second operator are different operators, comprising:

and the first service end determines whether the first operator and the second operator belong to the same operator according to the MCC and MNC of the second operator.

17. The method according to claim 9 or 10, wherein 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 claim 9 or 10, characterized in that the method further comprises:

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 resources 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 resources 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 resources of the first service;

the second server generates an eighth TCP message according to the seventh TCP message and the IP address of the first server, wherein the eighth TCP message is used for requesting the first service resource from the first server, and the destination address of the eighth TCP message is the IP address of the first server;

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

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

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

19. An electronic device, comprising: one or more processors; a memory; a module in which a plurality of application programs are installed; 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 storing computer instructions which, when run on an electronic device, cause the electronic device to perform the method of any one of claims 1 to 8 or cause the electronic device to perform the method of any one of claims 9 to 18.