CN115396978B

CN115396978B - Communication method, device, server and storage medium

Info

Publication number: CN115396978B
Application number: CN202211013097.0A
Authority: CN
Inventors: 林琳; 朱斌; 王光全; 付海岩; 吴时东; 王晓辉
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2024-05-10
Anticipated expiration: 2042-08-23
Also published as: CN115396978A

Abstract

The invention provides a communication method, a device, a server and a storage medium, relates to the technical field of communication, and solves the technical problem that the method for arbitrarily selecting one link from a plurality of links by UPF in the related technology is possibly unreasonable and can influence the acquisition efficiency of service data. The method comprises the following steps: obtaining a link aggregation policy from the NEF, the link aggregation policy comprising an identification of at least two links between the UPF and the target data network; generating a target link based on the at least two links, wherein the link state information of the target link meets a preset condition, and the link state information of the target link comprises the bandwidth of the target link; and sending a link configuration policy to the UPF, wherein the link configuration policy comprises an identification of the target link, the link configuration policy is used for indicating the UPF to send a data acquisition request of the UE based on the target link, and the data acquisition request is used for requesting to acquire target service data.

Description

Communication method, device, server and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a communications method, an apparatus, a server, and a storage medium.

Background

Currently, when a User Equipment (UE) data acquisition request is acquired by a user plane function (user plane function, UPF), the data acquisition request may be sent to a data network, so that the UE may acquire service data. Specifically, there may be multiple links between the UPF and the data network, and the UPF may arbitrarily select one link from the multiple links to send the data acquisition request.

However, in the above method, it may not be reasonable to arbitrarily select one link from the plurality of links by the UPF, for example, the one link may have failed (e.g., disconnected), which may affect the efficiency of acquiring service data.

Disclosure of Invention

The invention provides a communication method, a device, a server and a storage medium, which solve the technical problem that the method of arbitrarily selecting one link from a plurality of links by UPF in the related art may not be reasonable, for example, the one link may have failed (such as disconnected), so that the acquisition efficiency of service data is affected.

In a first aspect, the present invention provides a communication method comprising: obtaining a link aggregation policy from the capability openness function, NEF, the link aggregation policy comprising an identification of at least two links between the UPF and the target data network; generating a target link based on the at least two links, wherein the link state information of the target link meets a preset condition, and the link state information of the target link comprises the bandwidth of the target link; and sending a link configuration policy to the UPF, wherein the link configuration policy comprises an identification of the target link, the link configuration policy is used for indicating the UPF to send a data acquisition request of the UE based on the target link, and the data acquisition request is used for requesting to acquire target service data.

Optionally, a preset correspondence is stored in the session management function SMF, where the preset correspondence includes respective identifiers of multiple links and respective identifiers of sessions corresponding to the multiple links, and the generating a target link based on the at least two links specifically includes: determining the identifier of the session corresponding to each link based on the identifier of each link in the at least two links and the preset corresponding relation; performing aggregation operation on the identifier of the session corresponding to each link to obtain an identifier of a target session, wherein the identifier of the target session comprises the identifier of the session corresponding to each link, and the target session is the session corresponding to the target link; the target link is generated based on the target session.

In a second aspect, the present invention provides a communication method comprising: acquiring an Internet Protocol (IP) address of a target data network; determining a link aggregation policy based on the IP address, the link aggregation policy including an identification of at least two links between the UPF and the target data network; and sending the link aggregation policy to the NEF, wherein the link aggregation policy is used for instructing the SMF to generate a target link based on the at least two links, and the target link is used for transmitting a data acquisition request of the UE.

Optionally, determining the link aggregation policy based on the IP address specifically includes: determining a plurality of links between the UPF and the target data network based on the IP address; transmitting a link state acquisition request to the NEF, where the link state acquisition request includes respective identifiers of the plurality of links, and the link state acquisition request is used to request to acquire respective link state information of the plurality of links, where the link state information of one link includes a bandwidth of the link; receiving a link state acquisition response sent by the NEF, wherein the link state acquisition response comprises link state information of each of the plurality of links; determining the at least two links from the plurality of links according to the link state information of each of the plurality of links; and generating the link aggregation strategy according to the identifications of the at least two links.

Optionally, the communication method further includes: acquiring the IP address of the UE and the name of the UE; authenticating the UE based on the IP address of the UE and the name of the UE; transmitting the link aggregation policy to the NEF, comprising: and when the authentication result is that the authentication is successful, the link aggregation strategy is sent to the NEF.

In a third aspect, the present invention provides a communication method comprising: acquiring a link configuration strategy from the SMF, wherein the link configuration strategy comprises an identification of a target link, the link state information of the target link meets a preset condition, and the link state information of the target link comprises the bandwidth of the target link; when a data acquisition request of the UE is received, the data acquisition request is sent to a target data network based on the target link, and the data acquisition request is used for requesting acquisition of target service data.

Optionally, the communication method further includes: and when the number of the received data acquisition requests of the UE is multiple, respectively sending the multiple data acquisition requests to the target data network according to the sequence of the multiple data acquisition requests.

Optionally, the communication method further includes: a link configuration policy response is sent to the SMF, the link configuration policy response being used to inform the UPF that the link configuration policy has been enforced.

In a fourth aspect, the present invention provides a communication apparatus comprising: the device comprises an acquisition module, a processing module and a sending module; the acquisition module is used for acquiring a link aggregation strategy from the NEF, wherein the link aggregation strategy comprises identifiers of at least two links between the UPF and a target data network; the processing module is used for generating a target link based on the at least two links, wherein the link state information of the target link meets the preset condition, and the link state information of the target link comprises the bandwidth of the target link; the sending module is configured to send a link configuration policy to the UPF, where the link configuration policy includes an identifier of the target link, and the link configuration policy is configured to instruct the UPF to send, based on the target link, a data acquisition request of the UE, where the data acquisition request is configured to request to acquire target service data.

Optionally, a preset corresponding relation is stored in the SMF, where the preset corresponding relation includes an identifier of each of the multiple links and an identifier of a session corresponding to each of the multiple links, and the communication device further includes a determining module; the determining module is used for determining the identifier of the session corresponding to each link based on the identifier of each link in the at least two links and the preset corresponding relation; the processing module is further configured to perform an aggregation operation on the identifier of the session corresponding to each link to obtain an identifier of a target session, where the identifier of the target session includes an identifier of the session corresponding to each link, and the target session is a session corresponding to the target link; the processing module is further configured to generate the target link based on the target session.

In a fifth aspect, the present invention provides a communication apparatus, including an acquisition module, a determination module, and a transmission module; the acquisition module is used for acquiring the IP address of the target data network; the determining module is used for determining a link aggregation policy based on the IP address, wherein the link aggregation policy comprises identification of at least two links between the UPF and the target data network; the sending module is configured to send the link aggregation policy to the NEF, where the link aggregation policy is configured to instruct the SMF to generate a target link based on the at least two links, where the target link is configured to transmit a data acquisition request of the UE.

Optionally, the communication device further includes a receiving module and a processing module; the determining module is further configured to determine a plurality of links between the UPF and the target data network based on the IP address; the sending module is further configured to send a link state acquisition request to the NEF, where the link state acquisition request includes respective identifiers of the multiple links, and the link state acquisition request is used to request to acquire link state information of each of the multiple links, where the link state information of one link includes a bandwidth of the link; the receiving module is configured to receive a link state acquisition response sent by the NEF, where the link state acquisition response includes link state information of each of the multiple links; the determining module is further configured to determine the at least two links from the plurality of links according to link state information of each of the plurality of links; the processing module is configured to generate the link aggregation policy according to the identifiers of the at least two links.

Optionally, the communication device further includes a processing module; the acquisition module is further used for acquiring the IP address of the UE and the name of the UE; the processing module is used for authenticating the UE based on the IP address of the UE and the name of the UE; the sending module is specifically configured to send the link aggregation policy to the NEF when the authentication result is that the authentication is successful.

In a sixth aspect, the present invention provides a communication apparatus, including an acquisition module and a transmission module; the obtaining module is used for obtaining a link configuration strategy from the SMF, wherein the link configuration strategy comprises an identification of a target link, the link state information of the target link meets a preset condition, and the link state information of the target link comprises the bandwidth of the target link; the sending module is configured to send, when receiving a data acquisition request of the UE, the data acquisition request to a target data network based on the target link, where the data acquisition request is used to request acquisition of target service data.

Optionally, the sending module is further configured to send the plurality of data acquisition requests to the target data network according to the sequence of the plurality of data acquisition requests when the number of the received data acquisition requests of the UE is multiple.

Optionally, the sending module is further configured to send a link configuration policy response to the SMF, where the link configuration policy response is used to notify the UPF that the link configuration policy has been executed.

In a seventh aspect, the present invention provides a server comprising: a processor and a memory configured to store processor-executable instructions; wherein the processor is configured to execute the instructions to implement any of the alternative communication methods of the first aspect, or to implement any of the alternative communication methods of the second aspect, or to implement any of the alternative communication methods of the third aspect.

In an eighth aspect, the present invention provides a computer readable storage medium having instructions stored thereon which, when executed by a server, enable the server to perform any one of the alternative communication methods of the first aspect, or any one of the alternative communication methods of the second aspect, or any one of the alternative communication methods of the third aspect.

According to the communication method, the device, the server and the storage medium provided by the invention, the star-to-ground aggregation equipment can acquire the IP address of the target data network, and a link aggregation strategy is determined based on the IP address, wherein the link aggregation request comprises the identifications of the at least two links; the star-to-ground aggregation device may then send a link aggregation policy to the NEF, the link aggregation policy to instruct the SMF to generate a target link based on the at least two links, the target link to transmit a data acquisition request of the UE. In the invention, after the SMF acquires the link aggregation policy, a target link can be generated based on at least two links, and a link configuration policy is sent to the UPF; since the link configuration policy is used to instruct the UPF to send the data acquisition request of the UE based on the target link, when the UPF receives the data acquisition request of the UE, the data acquisition request may be sent to the target data network based on the target link. And because the link state information of the target link meets the preset condition, namely the communication quality of the target link is better, the UPF can send the data acquisition request of the UE based on the link with better communication quality, and the acquisition efficiency of the service data can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic diagram of a network architecture of a communication system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a network architecture of another communication system according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present invention;

Fig. 4 is a flow chart of another communication method according to an embodiment of the present invention;

Fig. 5 is a flow chart of another communication method according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of a plurality of links according to an embodiment of the present invention;

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

Fig. 8 is a flow chart of another communication method according to an embodiment of the present invention;

fig. 9 is a flow chart of another communication method according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another communication device according to an embodiment of the present invention;

Fig. 12 is a schematic structural diagram of another communication device according to an embodiment of the present invention;

Fig. 13 is a schematic structural diagram of another communication device according to an embodiment of the present invention;

Fig. 14 is a schematic structural diagram of another communication device according to an embodiment of the present invention;

Fig. 15 is a schematic structural diagram of another communication device according to an embodiment of the present invention.

Detailed Description

The following describes in detail a communication method, a device, a server, and a storage medium provided in an embodiment of the present invention with reference to the accompanying drawings.

Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present invention is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The term "and/or" as used herein includes the use of either or both of these methods.

In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.

Based on the description in the background art, since in the related art, it may be unreasonable to arbitrarily select one link from a plurality of links, for example, the link may have failed (e.g., disconnected), which may affect the efficiency of acquiring service data. Based on this, the embodiment of the invention provides a communication method, a device, a server and a storage medium, when the SMF acquires the link aggregation policy, a target link may be generated based on at least two links, and a link configuration policy may be sent to the UPF; since the link configuration policy is used to instruct the UPF to send the data acquisition request of the UE based on the target link, when the UPF receives the data acquisition request of the UE, the data acquisition request may be sent to the target data network based on the target link. And because the link state information of the target link meets the preset condition, namely the communication quality of the target link is better, the UPF can send the data acquisition request of the UE based on the link with better communication quality, and the acquisition efficiency of the service data can be improved.

The communication method, the device, the server and the storage medium provided by the embodiment of the invention can be applied to a communication system. As shown in fig. 1, the communication system includes a UE 101, a radio access network (radio access network, RAN) device or Access Network (AN) device 102, a UPF 103, AN access and mobility management function (ACCESS AND mobility management function, AMF) 104, AN SMF 105, a policy control function (policy control function, PCF) 106, AN authentication service function (authentication server function, AUSF) 107, a network function storage function (network function repository function, NRF) 108, AN application function (application function, AF) 109, a NEF 110, a unified data management (unified DATA MANAGEMENT, UDM) 111, a network slice selection function (network slice selection function, NSSF) 112, and a network data analysis function (network DATA ANALYTICS function, NWDAF) 113, etc. The UE 101 accesses a 5G network (i.e., it is understood that the UE 101 accesses a 5G system that can provide a 5G network) and establishes a session with the network, and then the UE 101 can communicate with functions (e.g., UPF 103, AMF104, etc.) serving the UE 101 through the (R) AN device 102. In general, in practical applications, the connection between the above-mentioned devices or service functions may be a wireless connection, and for convenience and intuitiveness, the connection relationship between the devices is schematically shown by a solid line in fig. 1.

Wherein the (R) AN device 102 is used for UE 101 to access a network, the (R) AN device 102 may include a base station, AN evolved base station (evolved node base station, eNB), a next generation base station (next generation node base station, gNB), a new radio base station (new radio eNB), a macro base station, a micro base station, a high frequency base station or transmission and reception point (transmission and reception point, TRP), a non-third generation partnership project (3rd generation partnership project,3GPP) access network (e.g., wiFi), and/or a non-3GPP interworking function (non-3GPP interworking function,N3IWF), among other devices.

UPF 103: for handling events related to the user plane such as transmitting or routing data packets, detecting data packets, reporting traffic, handling quality of service (quality of service, qoS), lawful interception, storing downstream data packets, etc. In the embodiment of the present invention, the UPF 103 may acquire a link configuration policy, where the link configuration policy includes an identifier of a target link, and the link configuration policy is used to instruct the UPF 103 to send, based on the target link, a data acquisition request of the UE 101, where the data acquisition request is used to request to acquire target service data.

AMF 104: for connection management, mobility relation, registration management, access authentication and authorization, reachability management, security context management, etc.

SMF 105: for session management (e.g., session establishment, modification, and release), selection and control of UPF 103, selection of traffic and session continuity (SERVICE AND session continuity) modes, roaming services, and so forth. In the embodiment of the present invention, the SMF 105 may acquire a link aggregation policy, where the link aggregation policy includes identifiers of at least two links, and generate a target link based on the at least two links; the SMF 105 is also configured to send the above-described link configuration policies to the UPF 103.

PCF 106: is used for making strategies, providing strategy control services, acquiring strategy decision-related subscription information and the like.

AUSF 107,107: for interacting with the UDM 111 to obtain user information and to perform authentication related functions, such as generating intermediate keys, etc.

NRF 108: network function text for service discovery, maintenance of examples of available network functions, and services supported by these network functions.

AF 109: interact with the 3GPP core network to provide services or servers, e.g., can interact with the NEF 110.

NEF 110: the security opens various services and capabilities provided by 3GPP network functions (including content opening or third party opening, etc.), translates or translates information interacted with AF 109 and internal network functions, such as AF service identification and content 5G core network information (e.g., network slice selection assistance information, etc.), etc. In an embodiment of the present invention, the NEF 110 may receive a link aggregation policy sent by a star-to-ground aggregation device (not shown in the figure), and send the link aggregation policy to the SMF 105.

UDM 111: processing authentication information in a 3GPP authentication and key agreement mechanism, processing user identity information, access authorization, registration and mobility management, subscription management, short message management and the like.

NSSF 112,112: for selecting a set of network slices for the UE 101, determining network slice selection protocol information, and determining a set of AMFs for serving the UE 101 (an AMF set refers to a set of multiple AMFs that may be serving the UE 101).

NWDAF 113: for providing a network analysis service according to request data of the network service. In the embodiment of the present invention, NWDAF is configured to receive a link state acquisition request sent by the NEF 110, where the link state acquisition request includes an identifier of each of multiple links, and the link state acquisition request is configured to request to acquire link state information of each of the multiple links, where the link state information of one link includes a bandwidth of the line; NWDAF 113 is also configured to send a link state acquisition response to NEF 110, the link state acquisition response including the link state information for each of the plurality of links.

Alternatively, each of the above functional modules (i.e., UPF 103, AMF 104, SMF 105, PCF 106, AUSF, NRF 108, AF 109, NEF110, UDM 111, NSSF 112, and NWDAF) may be integrated on a server to implement the functions thereof.

Referring to fig. 1, as shown in fig. 2, the embodiment of the present invention may further deploy the star-to-ground aggregation device 208 in the communication system. Specifically, the communication system shown in fig. 2 may further include a UE 201, (R) AN device 202, UPF 203, SMFs 205, NWDAF, 206, NEF 207, and a data network 204.

Wherein the (R) AN device 202 may receive a data acquisition request sent by the UE 201 and send the data acquisition request to the UPF 203, the data acquisition request being used to request acquisition of target service data.

The UPF 203 may acquire the link configuration policy and execute the link configuration policy, and in particular, when the UPF 203 receives a data acquisition request of the UE 201, the data acquisition request may be sent to a target data network (e.g., the data network 204) based on the target link.

The SMF 205 may obtain a link aggregation policy that includes an identification of at least two links and generate a target link based on the at least two links; the SMF 205 is also configured to send the link configuration policy described above to the UPF 203.

NWDAF 206 the receiver may receive a link state acquisition request sent by the NEF 207, where the link state acquisition request includes an identifier of each of the multiple links, and the link state acquisition request is used to request to acquire link state information of each of the multiple links, where the link state information of one link includes a bandwidth of the line; NWDAF 206 is also configured to send a link state acquisition response to NEF 207, the link state acquisition response including the link state information for each of the plurality of links.

The NEF 207 may receive the above-described link aggregation policy sent by the star-to-ground aggregation device 208.

The star-to-ground aggregation device 208 may obtain an IP address of a target data network (e.g., the data network 204), determine a link aggregation policy based on the IP address, the link aggregation policy including an identification of at least two links, the link aggregation side policy being to instruct the SMF to generate a target link based on the at least two links, the target link being to transmit a data acquisition request of the UE.

In fig. 2, 1 UE, 1 (R) AN device, 1 UPF, 1 NEF, 1 SMF, 1 NWDAF, 1 star-to-ground aggregation device, and 1 data network are shown. The number of the respective devices shown in fig. 2 is not particularly limited in the embodiment of the present invention.

The communication method, the device, the server and the storage medium provided by the embodiment of the invention are applied to a scene of acquiring service data. Specifically, after the star-to-ground aggregation device acquires the IP address of the target data network, a link aggregation policy may be determined based on the IP address, where the link aggregation policy includes identifiers of at least two links, and the star-to-ground aggregation device may send the link aggregation policy to the NEF, where the link aggregation policy is used to instruct the SMF to generate the target link based on the at least two links. After the SMF may acquire the link aggregation policy, the link aggregation policy may be executed, specifically generating the target link based on the at least two links, and then the SMF may send a link configuration policy to the UPF, where the link configuration policy is used to instruct the UPF to send a data acquisition request of the UE based on the target link. After the UPF acquires the link configuration policy, the link configuration policy may be executed, specifically, when the UPF receives the data acquisition request, the data acquisition request may be sent to a target data network based on the target link, so that the UE may acquire target service data from the target data network.

The communication method provided by the embodiment of the present invention is fully described below from the point of interaction of each device in the communication system in combination with the communication system shown in fig. 2, so as to illustrate a process of sending a link aggregation policy to the NEF by the star-ground aggregation device, a process of generating a target link by the SMF, and a process of sending a data acquisition request of the UE to the target data network by the UPF based on the target link.

As shown in fig. 3, the communication method provided in the embodiment of the present invention may include S101-S110.

S101, the star-to-ground aggregation equipment acquires the IP address of the target data network.

In one implementation manner of the embodiment of the present invention, the star-to-ground aggregation device may acquire a link aggregation request of the UE, where the link aggregation request includes an IP address of the target data network.

In one case, the star-to-ground aggregation device may directly receive a link aggregation request of the UE sent by the UE; in another case, the star-to-ground aggregation device may further receive a link aggregation request of the UE sent by the third party application device, and specifically, the user may trigger the third party application device to send the link aggregation request of the UE to the star-to-ground aggregation device.

Optionally, the above-mentioned star-to-ground aggregation device may include an IF1 interface, and the star-to-ground aggregation device may acquire the link aggregation request of the UE through the IF1 interface.

S102, the star-to-ground aggregation equipment determines a link aggregation strategy based on the IP address.

Wherein the link aggregation policy includes an identification of at least two links between the UPF and the target data network.

In the embodiment of the invention, the star-to-ground aggregation equipment can determine the target data network according to the IP address of the target data network, namely, a plurality of links between the UPF and the target data network can be determined.

In one case, the star-to-ground aggregation apparatus may determine M links (m≡2) having the best link state information (e.g., the largest bandwidth) among the plurality of links, and determine the M links having the best link state information as the at least two links.

In another case, the star-to-ground polymerization device may further acquire respective communication distances of the plurality of links; then the star-to-ground polymerization equipment can determine the N links (N is more than or equal to 2) with the shortest communication distance as the at least two links.

S103, the star-to-ground aggregation equipment sends a link aggregation strategy to the NEF.

The link aggregation policy is used for indicating the SMF to generate a target link based on the at least two links, wherein the target link is used for transmitting a data acquisition request of the UE.

Optionally, the data acquisition request of the UE may include a service identifier of a target service, so that the target service data is service data of the target service, that is, the data acquisition request is used for requesting to acquire service data of the target service.

S104, NEF receives the link aggregation strategy sent by the star-ground aggregation equipment.

S105, the NEF sends the link aggregation policy to the SMF.

S106, the SMF acquires a link aggregation strategy from the NEF.

In connection with the description of the above embodiments, it should be understood that the link aggregation policy includes an identification of at least two links between the UPF and the target data network.

S107, the SMF generates a target link based on at least two links.

The link state information of the target link meets preset conditions, and the link state information of the target link comprises the bandwidth of the target link.

It is understood that, since the link aggregation policy is used to instruct the SMF to generate a target link based on the at least two links, the link aggregation policy may be executed after the SMF acquires the link aggregation policy. Specifically, the SMF may generate the target link based on the at least two links.

It should be understood that the link state information of one link is used to characterize the communication quality of the link, and that the state information of the target link satisfies the preset condition indicates that the communication quality of the target link is better.

In one implementation of the embodiment of the present invention, the link state information of a link (for example, a target link) may include a bandwidth of the target link, and the preset condition may include a bandwidth threshold. Specifically, when the bandwidth of the target link is greater than or equal to the bandwidth threshold, the star-to-ground aggregation device may determine that the target link meets the preset condition.

In another implementation manner of the embodiment of the present invention, the link state information of the target link may further include a transmission delay of the target link, a transmission rate of the target link, a packet loss rate of the target link, jitter of the target link, and the like; the preset conditions may further include a delay threshold, a rate threshold, a packet loss rate threshold, a jitter threshold, and the like.

It will be appreciated that the above-mentioned preset conditions are conditions stored in the star-to-ground polymerization apparatus. Alternatively, the preset condition may be a preset condition acquired by the star-to-ground aggregation device, that is, the star-to-ground aggregation device may determine whether the link state information of a certain link (for example, the target link) meets the preset condition based on the preset condition.

In an alternative implementation, after the SMF executes the above-mentioned link aggregation policy, in particular generating the target link based on the at least two links, the SMF may send (or return) a link aggregation policy execution response to the NEF, the link aggregation policy execution response being used to inform that the link aggregation policy has been executed. Further, the NEF may send the link aggregation policy enforcement response to the star-to-ground aggregation device after receiving the link aggregation policy enforcement response.

S108, the SMF sends a link configuration strategy to the UPF.

The link configuration policy includes an identifier of the target link, where the link configuration policy is used to instruct the UPF to send, based on the target link, a data acquisition request of the UE, where the data acquisition request is used to request to acquire target service data.

S109, the UPF acquires a link configuration strategy from the SMF.

In connection with the above description of the embodiments, it should be understood that the link configuration policy includes an identification of a target link whose link state information satisfies a preset condition, and the link state information of the target link includes a bandwidth of the target link.

S110, when the UPF receives the data acquisition request of the UE, the data acquisition request is sent to the target data network based on the target link.

Wherein the data acquisition request is used for requesting acquisition of target service data.

It will be appreciated that since the above-described link configuration policy is used to instruct the UPF to send the data acquisition request based on the target link, the link configuration policy may be implemented when the UPF receives the data acquisition request. Specifically, the data acquisition request is sent to the target data network based on the target link, so that the UE can acquire target service data from the target data network.

In an alternative implementation, the target data network may correspond to a server (or a server cluster). The above-mentioned UPF sending a data acquisition request to a target data network based on a target link may be understood as the UPF sending the data acquisition request to the server based on the target link. Further, after receiving the data acquisition request, the server may determine target service data based on the service identifier of the target service included in the data acquisition request, and send (or return) the target service data to the UPF based on the target link, so that the UE may acquire the target service data.

In the embodiment of the present invention, after determining the target service data, the server may send a data acquisition response to the UPF based on the target link, where the data acquisition response includes the target service data; the UPF may send the data acquisition response to the UE through the (R) AN device after receiving the data acquisition response. So far, the UE may acquire the target service data.

In the embodiment of the invention, the star-to-ground aggregation equipment can acquire the IP address of the target data network, and determine the link aggregation strategy based on the IP address, wherein the link aggregation request comprises the identifications of the at least two links; the star-to-ground aggregation device may then send a link aggregation policy to the NEF, the link aggregation policy to instruct the SMF to generate a target link based on the at least two links, the target link to transmit a data acquisition request of the UE. In the invention, after the SMF acquires the link aggregation policy, a target link can be generated based on at least two links, and a link configuration policy is sent to the UPF; since the link configuration policy is used to instruct the UPF to send the data acquisition request of the UE based on the target link, when the UPF receives the data acquisition request of the UE, the data acquisition request may be sent to the target data network based on the target link. And because the link state information of the target link meets the preset condition, namely the communication quality of the target link is better, the UPF can send the data acquisition request of the UE based on the link with better communication quality, and the acquisition efficiency of the service data can be improved.

Referring to fig. 3, as shown in fig. 4, in an implementation manner of the embodiment of the present invention, a preset corresponding relationship is stored in the SMF, where the preset corresponding relationship includes an identifier of each of the multiple links and an identifier of a session corresponding to each of the multiple links, and the SMF generates a target link based on at least two links, and specifically includes S1071-S1073.

S1071, SMF determines the identification of the session corresponding to each link based on the identification of each link in at least two links and the preset corresponding relation.

It should be understood that, when a link corresponds to a session and the SMF obtains an identifier of a certain link, the SMF may determine, based on the identifier of the link and the preset correspondence, an identifier of the session corresponding to the identifier of the link.

S1072, SMF executes aggregation operation to the identifier of the session corresponding to each link in at least two links to obtain the identifier of the target session.

The identifier of the target session includes identifiers of sessions corresponding to each link, where the target session is a session corresponding to the target link.

It can be understood that the identifier of the target session includes the identifier of the session corresponding to each of the at least two links. The above aggregation operation may be understood as combining the identities of the sessions corresponding to each link.

In one case, the order of the above combinations may be set according to the priority of the links. Specifically, the higher the priority of a link, the higher the order of the identifier of the session corresponding to the link in the identifier of the target session.

In another case, the SMF may further determine a value corresponding to the identifier of each session (i.e. the session corresponding to each link) based on a certain correspondence, and then generate a new identifier based on a combination of values corresponding to the identifier of each session, that is, the identifier of the target session.

For example, table 1 below is an example of a preset correspondence provided in an embodiment of the present invention.

As shown in table 1, the preset correspondence includes the identities (respectively, the identities 1,2,3 and 4) of the 4 links (including the link 1, the link 2, the link 3 and the link 4) and the identities of the sessions corresponding to each of the 4 links. Specifically, the identifier of the session corresponding to the link 1 is an identifier a, the identifier of the session corresponding to the link 2 is an identifier B, the identifier of the session corresponding to the link 3 is an identifier C, and the identifier of the session corresponding to the link 4 is an identifier D.

TABLE 1

Identification of links	Identification of sessions
		Sign 1	Sign A
Sign 2	Sign B
		Sign 3	Sign C
Sign 4	Sign D

Assuming that the at least two links include link 1, link 2, and link 3, the SMF may determine that the session identifier of the target session includes an identifier a, an identifier B, and an identifier C.

S1073, the SMF generates the target link based on the target session.

In connection with the above description of the embodiments, it should be understood that one link corresponds to one session, and after the SMF obtains the identifier of the target session, the SMF may generate, based on the target session, a link corresponding to the target session, that is, a target link.

Referring to fig. 3, as shown in fig. 5, the determining a link aggregation policy based on the IP address may specifically include S1021-S1025.

S1021, the star-to-ground aggregation device determines a plurality of links between the UPF and the target data network based on the IP address.

In the embodiment of the present invention, the links between the UPF and the target data network may include a satellite-to-ground link and a data link, where the satellite-to-ground link is a link in a satellite communication system, and the data link is a link in a 5G communication system.

It should be noted that, since the plurality of links includes both links in the satellite communication system and links in the 5G communication system, the communication method provided by the embodiment of the present invention may be applied to a scenario where the satellite communication system and the 5G communication system are fused.

In one implementation manner of the embodiment of the present invention, the above-mentioned satellite-to-ground link may also be understood as a satellite-to-ground path, where the satellite-to-ground path includes satellite devices, and the number of the satellite devices included in the satellite-to-ground path may be one or multiple. Specifically, when the satellite path includes a satellite device, the satellite device is connected to the UPF and the target data network, respectively.

Illustratively, as shown in fig. 6, assuming that the UPF 301 is the above-mentioned UPF and the data network 302 is the above-mentioned target data network, there are 2 star-to-ground links (including star-to-ground link 1 and star-to-ground link 2) and 1 data link (i.e., data link 3) between the UPF 301 and the data network 302. Specifically, the satellite-to-earth link 1 includes a link 1, a link 2, and a satellite device 303; the satellite-to-earth link 2 includes a link 3, a link 4, a link 5, and a satellite device 304; the data link 3 is a link 6.

In an alternative implementation manner, the star-to-ground aggregation device may further obtain a protocol type of an application layer protocol used by the target data network, and the star-to-ground aggregation device may determine the plurality of links based on the protocol type.

By way of example, the protocol types may be hypertext transfer security protocol (hyper text transfer protocol over secure socket layer, HTTPS), hypertext transfer protocol (hyper text transfer protocol, HTTP), session notification protocol (session announcement protocol, SAP), and the like.

In another alternative implementation, the star-to-ground aggregation device may further obtain a port (or an identifier of the port) of the target data network, and the star-to-ground aggregation device may determine the plurality of links based on the port of the target data network.

S1022, the star-to-ground aggregation device sends a link state acquisition request to the NEF.

The link state acquisition request includes respective identifications of the plurality of links, and the link state acquisition request is used for requesting to acquire respective link state information of the plurality of links, wherein the link state information of one link includes a bandwidth of the link.

Optionally, the link state information of a link may further include a transmission delay of the link, a transmission rate of the link, a packet loss rate of the link, jitter of the link, and the like.

S1023, the star-to-ground aggregation equipment receives a link state acquisition response sent by the NEF.

Wherein the link state acquisition response includes link state information of each of the plurality of links.

It should be understood that, after receiving the link state acquisition request sent by the star-to-ground aggregation device, the NEF may send the link state acquisition request to NWDAF; after receiving the link state acquisition request sent by the NEF, the NWDAF may acquire the link state information of each of the multiple links according to the respective identifiers of the multiple links, and send (or return) a link state acquisition response to the NEF, where the link state acquisition response includes the link state information of each of the multiple links; the NEF, after receiving the link state acquisition response sent by NWDAF, may send the link state acquisition response to the star-to-ground aggregation device. The star-to-ground aggregation device may thus obtain the link state obtaining response, specifically, obtain the link state information of each of the plurality of links.

S1024, the star-ground aggregation equipment determines at least two links from the links according to the link state information of each of the links.

It should be understood that the link state information of the generated target link of the at least two links satisfies a preset condition, and the satellite-to-ground aggregation device may determine the link state information of the generated target link based on the link state information of the at least two links.

In one implementation manner of the embodiment of the present invention, the star-to-ground aggregation device may determine a sum of bandwidths of each of the at least two links as the bandwidth of the target link.

In another implementation manner of the embodiment of the present invention, the star-to-ground aggregation device may further perform weighted average on the bandwidth of each of the at least two links to determine the bandwidth of the target link.

In an alternative implementation manner, the process of determining, by the star-to-ground aggregation device, the transmission rate (transmission delay, packet loss rate, or jitter) of the target link according to the transmission rate (transmission delay, packet loss rate, or jitter) of each of the at least two links is the same as or similar to the process of determining, by the star-to-ground aggregation device, the bandwidth of the target link according to the bandwidth of each link, and will not be described herein.

S1025, the star-ground aggregation equipment generates a link aggregation strategy according to the identifications of at least two links.

It should be appreciated that the link aggregation policy is configured to instruct the SMF to generate the target link based on the identifiers of the at least two links, and the star aggregation device may generate the link aggregation policy according to the identifiers of the at least two links after determining the at least two links.

Referring to fig. 3, as shown in fig. 7, the communication method provided in the embodiment of the present invention further includes S111-S112.

S111, the star-to-ground aggregation equipment acquires the IP address of the UE and the name of the UE.

And S112, the star-to-ground aggregation equipment authenticates the UE based on the IP address of the UE and the name of the UE.

In one implementation manner of the embodiment of the present invention, a blacklist of IP addresses (hereinafter referred to as a first blacklist) and a whitelist of IP addresses (hereinafter referred to as a first whitelist) and a blacklist of names (hereinafter referred to as a second blacklist) and a whitelist of names (hereinafter referred to as a second whitelist) may be stored in the star-to-ground aggregation device. When the IP address of the UE does not belong to the first blacklist (or belongs to the first whitelist), and the name of the UE does not belong to the second blacklist (or belongs to the second whitelist), the star-to-ground aggregation device may determine that the authentication result is authentication success.

Optionally, when the IP address of the UE belongs to the first blacklist (or does not belong to the first whitelist), and/or the name of the UE belongs to the second blacklist (or does not belong to the second whitelist), the star-to-ground aggregation device may determine that the authentication result is authentication failure.

In an alternative implementation, the star-to-ground aggregation device may authenticate the UE based on the name of the UE based on an authentication manner such as Basic or oauth 2.0.

Optionally, the star-to-ground aggregation device may further authenticate the UE based on a protocol type of an application layer protocol used by the UE, an access right of the UE, and an access record of the UE.

As further shown in fig. 7, the above-mentioned star-to-ground aggregation device sends a link aggregation policy to the NEF specifically includes S1031.

S1031, when the authentication result is that the authentication is successful, the star-to-ground aggregation equipment sends a link aggregation strategy to the NEF.

It may be understood that when the authentication result is that the authentication is successful, which indicates that the identity information of the UE is normal, the star-to-ground aggregation device may determine a new target link for the UE, where the new target link is used for transmitting the data acquisition request of the UE. At this point, the star-to-ground aggregation device may send the link aggregation policy to the NEF.

Optionally, when the authentication result is authentication failure, the identity information of the UE is abnormal, and the star-to-ground aggregation device cannot determine a new target link for the UE, where the new target link is used for transmitting the data acquisition request of the UE. At this point, the star-to-ground aggregation device may delete the link aggregation request of the UE.

In the embodiment of the invention, the star-to-ground aggregation equipment can acquire the IP address of the UE and the name of the UE, and carry out authentication and authentication on the UE based on the IP address of the UE and the name of the UE, when the authentication and authentication result is successful, the identity information of the UE is normal, and the star-to-ground aggregation equipment can send a link aggregation strategy to the NEF, so that the security of data acquisition is improved.

Referring to fig. 3, as shown in fig. 8, the communication method provided in the embodiment of the present invention further includes S113.

And S113, when the number of the data acquisition requests of the UE received by the UPF is multiple, respectively sending the multiple data acquisition requests to the target data network according to the sequence of the multiple data acquisition requests.

It should be appreciated that one link (e.g., the target link) is used to transmit data acquisition requests of the same traffic type.

Specifically, when the UPF receives a plurality of data acquisition requests, the UPF may determine an identity of a service included in each of the plurality of data acquisition requests. When the identifiers of the services included in the at least two data acquisition requests are the identifiers of the target services (for example, the identifiers of the video services), the UPF may send the at least two data acquisition requests based on the target link; the UPF may send the other data acquisition request based on the other link when the identification of the service included in the other data acquisition request (i.e., the data acquisition requests other than the at least two data acquisition requests among the plurality of data acquisition requests) is an identification of the other service (e.g., an identification of a game service).

Referring to fig. 3, as shown in fig. 9, the communication method provided in the embodiment of the present invention further includes S114.

S114, the UPF sends a link configuration strategy response to the SMF.

Wherein the link configuration policy response is used to inform the UPF that the link configuration policy has been enforced.

It will be appreciated that after the UPF obtains the link configuration policy from the SMF, the link configuration policy may be executed, and since the link configuration policy is used to instruct the UPF to send the data acquisition request of the UE based on the target link, when the UPF receives the data acquisition request of the UE and sends the data acquisition request to the target data network based on the target link, the UPF may send (or return) a link configuration policy response to the SMF, where the link configuration policy response is used to notify that the link configuration policy has been executed.

The embodiment of the invention can divide the function modules of the satellite-ground aggregation equipment, the SMF, the UPF and the like according to the method example, for example, each function module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present invention, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

In the case of dividing the respective functional modules with the respective functions, fig. 10 shows a possible structural diagram of the communication apparatus (specifically, SMF) involved in the above-described embodiment, and as shown in fig. 10, the communication apparatus 40 may include: an acquisition module 401, a processing module 402 and a sending module 403.

An obtaining module 401 is configured to obtain a link aggregation policy from the NEF, where the link aggregation policy includes an identification of at least two links between the UPF and the target data network.

The processing module 402 is configured to generate a target link based on the at least two links, where link state information of the target link meets a preset condition, and the link state information of the target link includes a bandwidth of the target link.

A sending module 403, configured to send a link configuration policy to the UPF, where the link configuration policy includes an identifier of the target link, where the link configuration policy is used to instruct the UPF to send, based on the target link, a data acquisition request of the UE, where the data acquisition request is used to request to acquire target service data.

Optionally, the SMF stores a preset correspondence, where the preset correspondence includes an identifier of each of the multiple links and an identifier of a session corresponding to each of the multiple links, and the communication device 40 further includes a determining module 404.

A determining module 404, configured to determine an identifier of a session corresponding to each link based on the identifier of each link in the at least two links and the preset correspondence.

The processing module 402 is further configured to perform an aggregation operation on the identifier of the session corresponding to each link, to obtain an identifier of a target session, where the identifier of the target session includes an identifier of the session corresponding to each link, and the target session is the session corresponding to the target link.

The processing module 402 is further configured to generate the target link based on the target session.

In the case of an integrated unit, fig. 11 shows a possible structural schematic diagram of the communication device (in particular, the star-to-ground aggregation device) involved in the above-described embodiment. As shown in fig. 11, the communication device 50 may include: a processing module 501 and a communication module 502. The processing module 501 may be used to control and manage the operation of the communication device 50. The communication module 502 may be used to support communication of the communication device 50 with other entities. Optionally, as shown in fig. 11, the communication device 50 may further comprise a storage module 503 for storing program code and data of the communication device 50.

Wherein the processing module 501 may be a processor or a controller. The communication module 502 may be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 503 may be a memory.

Where the processing module 501 is a processor, the communication module 502 is a transceiver, and the storage module 503 is a memory, the processor, the transceiver, and the memory may be connected by a bus. The bus may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus, or an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The buses may be divided into address buses, data buses, control buses, etc.

In the case of dividing the respective functional modules by the respective functions, fig. 12 shows a possible structural schematic diagram of the communication apparatus (specifically, the star-to-ground aggregation device) involved in the above-described embodiment, and as shown in fig. 12, the communication apparatus 60 may include: an acquisition module 601, a determination module 602, and a transmission module 603.

An obtaining module 601 is configured to obtain an IP address of a target data network.

A determining module 602 is configured to determine a link aggregation policy based on the IP address, the link aggregation policy including an identification of at least two links between the UPF and the target data network.

A sending module 603, configured to send the link aggregation policy to the NEF, where the link aggregation side policy is configured to instruct the SMF to generate a target link based on the at least two links, where the target link is configured to transmit a data acquisition request of the UE.

Optionally, the communication device 60 further includes a receiving module 604 and a processing module 605.

The determining module 602 is further configured to determine a plurality of links between the UPF and the target data network based on the IP address.

The sending module 603 is further configured to send a link state acquisition request to the NEF, where the link state acquisition request includes an identifier of each of the plurality of links, and the link state acquisition request is used to request to acquire link state information of each of the plurality of links, where the link state information of one link includes a bandwidth of the link.

The receiving module 604 is configured to receive a link state acquisition response sent by the NEF, where the link state acquisition response includes link state information of each of the multiple links.

The determining module 602 is further configured to determine the at least two links from the plurality of links according to the link state information of each of the plurality of links.

A processing module 605 is configured to generate the link aggregation policy according to the identities of the at least two links.

Optionally, the acquiring module 601 is further configured to acquire an IP address of the UE and a name of the UE.

A processing module 605 is configured to authenticate the UE based on the IP address of the UE and the name of the UE.

The sending module 603 is specifically configured to send the link aggregation policy to the NEF when the authentication result is that the authentication is successful.

In case of an integrated unit, fig. 13 shows a possible structural schematic diagram of the communication device (in particular, SMF) involved in the above-described embodiment. As shown in fig. 13, the communication device 70 may include: a processing module 701 and a communication module 702. The processing module 701 may be used to control and manage the actions of the communication device 70. The communication module 702 may be used to support communication of the communication device 70 with other entities. Optionally, as shown in fig. 13, the communication device 70 may further comprise a storage module 703 for storing program code and data of the communication device 70.

Wherein the processing module 701 may be a processor or a controller. The communication module 702 may be a transceiver, transceiver circuitry, or a communication interface, among others. The memory module 703 may be a memory.

When the processing module 701 is a processor, the communication module 702 is a transceiver, and the storage module 703 is a memory, the processor, the transceiver and the memory may be connected through a bus. The bus may be a PCI bus or an EISA bus, etc. The buses may be divided into address buses, data buses, control buses, etc.

In the case of dividing the respective functional modules with the respective functions, fig. 14 shows a schematic diagram of one possible configuration of the communication apparatus (specifically, UPF) involved in the above-described embodiment, as shown in fig. 14, the communication apparatus 80 may include: an acquisition module 801 and a transmission module 802.

An obtaining module 801, configured to obtain a link configuration policy from the SMF, where the link configuration policy includes an identifier of a target link, and link state information of the target link meets a preset condition, and the link state information of the target link includes a bandwidth of the target link.

A sending module 802, configured to send, when receiving a data acquisition request of a UE, the data acquisition request to a target data network based on the target link, where the data acquisition request is used to request acquisition of target service data.

Optionally, the sending module 802 is further configured to send the plurality of data acquisition requests to the target data network according to the sequence of the plurality of data acquisition requests when the number of the received data acquisition requests of the UE is multiple.

Optionally, the sending module 802 is further configured to send a link configuration policy response to the SMF, where the link configuration policy response is used to notify the UPF that the link configuration policy has been executed.

In case of an integrated unit, fig. 15 shows a schematic diagram of one possible structure of the communication device (in particular UPF) involved in the above-described embodiment. As shown in fig. 15, the communication device 90 may include: a processing module 901 and a communication module 902. The processing module 901 may be used to control and manage the operation of the communication device 90. The communication module 902 may be used to support communication of the communication device 90 with other entities. Optionally, as shown in fig. 15, the communication device 90 may further include a storage module 903 for storing program code and data of the communication device 90.

The processing module 901 may be a processor or a controller. The communication module 902 may be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 903 may be a memory.

When the processing module 901 is a processor, the communication module 902 is a transceiver, and the storage module 903 is a memory, the processor, the transceiver, and the memory may be connected through a bus. The bus may be a PCI bus or an EISA bus, etc. The buses may be divided into address buses, data buses, control buses, etc.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

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

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber terminal line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (Solid STATE DISK, SSD)), etc.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A communication method applied to a session management function SMF, the method comprising:

obtaining a link aggregation policy from a capability opening function (NEF), wherein the link aggregation policy comprises identifiers of at least two links between a User Plane Function (UPF) and a target data network;

Determining the identifier of the session corresponding to each link based on the identifier of each link in the at least two links and a preset corresponding relation; the preset corresponding relation is a corresponding relation stored in the SMF, and the preset corresponding relation comprises respective identifications of a plurality of links and respective identifications of sessions corresponding to the links;

Performing aggregation operation on the identifier of the session corresponding to each link to obtain an identifier of a target session, wherein the identifier of the target session comprises the identifier of the session corresponding to each link, and the target session is the session corresponding to the target link;

generating the target link based on the target session, wherein the link state information of the target link meets a preset condition, and the link state information of the target link comprises the bandwidth of the target link;

And sending a link configuration strategy to the UPF, wherein the link configuration strategy comprises an identification of the target link, the link configuration strategy is used for indicating the UPF to send a data acquisition request of User Equipment (UE) based on the target link, and the data acquisition request is used for requesting to acquire target service data.

2. A communication method applied to a star-to-ground aggregation device, the method comprising:

acquiring an Internet Protocol (IP) address of a target data network;

Determining a plurality of links between a user plane function UPF and the target data network based on the IP address;

Transmitting a link state acquisition request to a capability opening function (NEF), wherein the link state acquisition request comprises respective identifications of the links, and the link state acquisition request is used for requesting to acquire respective link state information of the links, and the link state information of one link comprises the bandwidth of the link;

receiving a link state acquisition response sent by the NEF, wherein the link state acquisition response comprises link state information of each of the plurality of links;

Determining at least two links from the links according to the link state information of each of the links;

Generating a link aggregation policy according to the identifiers of the at least two links, wherein the link aggregation policy comprises the identifiers of the at least two links between the UPF and the target data network;

and sending the link aggregation policy to the NEF, wherein the link aggregation side policy is used for indicating a Session Management Function (SMF) to generate a target link based on the at least two links, and the target link is used for transmitting a data acquisition request of User Equipment (UE).

3. The communication method according to claim 2, characterized in that the method further comprises:

Acquiring the IP address of the UE and the name of the UE;

Authenticating the UE based on the IP address of the UE and the name of the UE;

transmitting the link aggregation policy to the NEF, comprising:

And when the authentication result is that the authentication is successful, the link aggregation strategy is sent to the NEF.

4. A communication method applied to a user plane function UPF, the method comprising:

Acquiring a link configuration policy from a session management function SMF, wherein the link configuration policy comprises an identification of a target link, link state information of the target link meets a preset condition, and the link state information of the target link comprises a bandwidth of the target link; the target link performs an aggregation operation on the identifier of the session corresponding to each link in at least two links for the SMF, after the identifier of the target session is obtained, the identifier of the session corresponding to each link is generated based on the target session, and is determined by the SMF based on the identifier of each link and a preset corresponding relation, wherein the preset corresponding relation comprises the identifiers of a plurality of links and the identifiers of the sessions corresponding to the links; the identification of the target session comprises the identification of the session corresponding to each link; the at least two links are links between the UPF and a target data network;

And when receiving a data acquisition request of User Equipment (UE), transmitting the data acquisition request to a target data network based on the target link, wherein the data acquisition request is used for requesting acquisition of target service data.

5. The communication method according to claim 4, characterized in that the method further comprises:

And when the number of the received data acquisition requests of the UE is multiple, respectively sending the multiple data acquisition requests to the target data network according to the sequence of the multiple data acquisition requests.

6. A method of communication according to claim 4 or 5, characterized in that the method further comprises:

And sending a link configuration policy response to the SMF, wherein the link configuration policy response is used for notifying the UPF that the link configuration policy is executed.

7. The communication device is characterized by comprising an acquisition module, a processing module, a sending module and a determining module;

The acquiring module is configured to acquire a link aggregation policy from the capability opening function NEF, where the link aggregation policy includes identities of at least two links between the user plane function UPF and the target data network;

The determining module is used for determining the identifier of the session corresponding to each link based on the identifier of each link in the at least two links and a preset corresponding relation; the preset corresponding relation is a corresponding relation stored in a session management function SMF, and comprises respective identifications of a plurality of links and respective identifications of sessions corresponding to the links;

the processing module is configured to perform an aggregation operation on the identifier of the session corresponding to each link to obtain an identifier of a target session, where the identifier of the target session includes the identifier of the session corresponding to each link, and the target session is a session corresponding to the target link;

the processing module is further configured to generate the target link based on the target session, where link state information of the target link meets a preset condition, and the link state information of the target link includes a bandwidth of the target link;

The sending module is configured to send a link configuration policy to the UPF, where the link configuration policy includes an identifier of the target link, and the link configuration policy is used to instruct the UPF to send, based on the target link, a data acquisition request of a user equipment UE, where the data acquisition request is used to request to acquire target service data.

8. A communication device, comprising: the device comprises an acquisition module, a determination module, a sending module, a receiving module and a processing module;

the acquisition module is used for acquiring an Internet Protocol (IP) address of the target data network;

The determining module is configured to determine a plurality of links between a user plane function UPF and the target data network based on the IP address;

The sending module is configured to send a link state acquisition request to a capability openness function NEF, where the link state acquisition request includes respective identifiers of the multiple links, and the link state acquisition request is configured to request to acquire link state information of each of the multiple links, where the link state information of one link includes a bandwidth of the link;

the receiving module is configured to receive a link state acquisition response sent by the NEF, where the link state acquisition response includes link state information of each of the multiple links;

The determining module is further configured to determine at least two links from the multiple links according to respective link state information of the multiple links;

the processing module is used for generating the link aggregation strategy according to the identifiers of the at least two links; the link aggregation policy includes an identification of at least two links between the UPF and the target data network;

The sending module is further configured to send the link aggregation policy to the NEF, where the link aggregation policy is used to instruct the session management function SMF to generate a target link based on the at least two links, and the target link is used to transmit a data acquisition request of the user equipment UE.

9. The communication device of claim 8, wherein the communication device is configured to,

The acquisition module is further configured to acquire an IP address of the UE and a name of the UE;

The processing module is further used for authenticating the UE based on the IP address of the UE and the name of the UE;

The sending module is specifically configured to send the link aggregation policy to the NEF when the authentication result is that the authentication is successful.

10. A communication device, comprising an acquisition module and a transmission module;

The acquiring module is configured to acquire a link configuration policy from a session management function SMF, where the link configuration policy includes an identifier of a target link, link state information of the target link meets a preset condition, and the link state information of the target link includes a bandwidth of the target link; the target link performs an aggregation operation on the identifier of the session corresponding to each link in at least two links for the SMF, after the identifier of the target session is obtained, the identifier of the session corresponding to each link is generated based on the target session, and is determined by the SMF based on the identifier of each link and a preset corresponding relation, wherein the preset corresponding relation comprises the identifiers of a plurality of links and the identifiers of the sessions corresponding to the links; the identification of the target session comprises the identification of the session corresponding to each link; the at least two links are links between a user plane function UPF and a target data network;

The sending module is configured to send, when receiving a data acquisition request of a user equipment UE, the data acquisition request to a target data network based on the target link, where the data acquisition request is used to request acquisition of target service data.

11. The communication device of claim 10, wherein the communication device is configured to,

And the sending module is further configured to send the plurality of data acquisition requests to the target data network according to the sequence of the plurality of data acquisition requests when the number of the received data acquisition requests of the UE is multiple.

12. A communication device according to claim 10 or 11, characterized in that,

The sending module is further configured to send a link configuration policy response to the SMF, where the link configuration policy response is used to notify the user plane function UPF that the link configuration policy has been executed.

13. A server, the server comprising:

A processor;

a memory configured to store the processor-executable instructions;

Wherein the processor is configured to execute the instructions to implement the communication method of claim 1, or to implement the communication method of claim 2 or 3, or to implement the communication method of any of claims 4-6.

14. A computer readable storage medium having instructions stored thereon, which, when executed by a server, enable the server to perform the communication method of claim 1, or to perform the communication method of claim 2 or 3, or to perform the communication method of any of claims 4-6.