CN112566185A

CN112566185A - Base station service data distribution method, device, storage medium and base station

Info

Publication number: CN112566185A
Application number: CN202011506461.8A
Authority: CN
Inventors: 饶玉立; 陈建祥; 吴伟锋
Original assignee: Comba Network Systems Co Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-03-26
Anticipated expiration: 2040-12-18
Also published as: CN112566185B

Abstract

The invention relates to a base station service data distribution method, a device, a storage medium and a base station, wherein the base station is provided with a data distribution interface for carrying out data plane communication with a local IP network, and the method comprises the following steps: receiving an uplink Packet Data Convergence Protocol (PDCP) data packet sent by a terminal, acquiring a five-tuple of the uplink PDCP data packet, and judging whether the five-tuple of the uplink PDCP data packet matches a five-tuple in a preset data shunting rule; and if so, forwarding the uplink PDCP data packet to a local IP network through the data shunting interface. The embodiment of the disclosure utilizes the data distribution interface configured by the base station and the data distribution rule to realize local data distribution more simply and conveniently, and has the advantages of low time delay, low cost, good safety and the like.

Description

Base station service data distribution method, device, storage medium and base station

Technical Field

The disclosed embodiments relate to the field of communications technologies, and in particular, to a base station service data offloading method, a base station service data offloading device, a computer-readable storage medium for implementing the base station service data offloading method, and a base station.

Background

With the mature and commercial use of 5G and vertical industries, a communication network has access to more devices and processes mass data, and many vertical industries have time-sensitive communication requirements and need to meet the service requirements of low time delay. The Mobile Edge Computing (MEC) technology migrates the Computing storage capacity and the service capacity to the Edge of the network, so that the application, service and content can be locally deployed in a short distance, thereby meeting the service requirements such as low delay to a certain extent.

In the related art, the industry currently uses MEC devices such as MEC gateways, MEC servers, MEC service platforms, etc. to implement networking to implement communication between the 5G base station and the local IP network of the vertical industry, and the solution needs to be implemented by depending on the backbone network of the operator.

However, due to the presence of a transmission network between, for example, a 5G base station, MEC equipment, and a backbone network, this in turn results in increased latency and high equipment cost and subsequent equipment maintenance cost for the MEC equipment. In addition, since the local IP network is dependent on the backbone network of the operator, the local IP network may be subjected to illegal attacks from the outside, and the like, the network security is low, and the network traffic fee of the operator needs to be paid during the service test, which further increases the cost.

Disclosure of Invention

In order to solve the above technical problem or at least partially solve the above technical problem, an embodiment of the present disclosure provides a base station service data offloading method, a base station service data offloading device, a computer-readable storage medium for implementing the base station service data offloading method, and a base station.

In a first aspect, an embodiment of the present disclosure provides a method for offloading service data of a base station, where the base station is configured with a data offloading interface for performing data plane communication with a local IP network, and the method includes:

receiving an uplink Packet Data Convergence Protocol (PDCP) data packet sent by a terminal;

acquiring a five-tuple of the uplink PDCP data packet, and judging whether the five-tuple of the uplink PDCP data packet matches a five-tuple in a preset data shunting rule;

and if so, forwarding the uplink PDCP data packet to a local IP network through the data shunting interface.

In some embodiments of the present disclosure, the preset data offloading rule further includes a quality of service QoS related parameter, and the method further includes:

acquiring quintuple and QoS (quality of service) related parameters of the uplink PDCP data packet;

judging whether the quintuple and the QoS related parameters of the uplink PDCP data packet match the quintuple and the QoS related parameters in the preset data distribution rule or not;

In some embodiments of the present disclosure, the quality of service QoS related parameters comprise quality of service class identifier, QCI, and/or 5QI parameters.

In some embodiments of the present disclosure, the preset data splitting rule includes a plurality of sub data splitting rules, each of the sub data splitting rules includes a quintuple and a corresponding priority;

the judging whether the quintuple of the uplink PDCP data packet matches the quintuple in a preset data shunting rule comprises the following steps:

matching the quintuple of the uplink PDCP data packet with the quintuple in each sub-data shunting rule with the priority ordered from high to low in sequence;

and if the quintuple of the uplink PDCP data packet is the same as the quintuple in one sub-data shunting rule, the matching is successful.

In some embodiments of the present disclosure, further comprising:

receiving data distribution rule configuration information, wherein the data distribution rule configuration information indicates that the preset data distribution rule is configured;

and configuring the preset data distribution rule based on the data distribution rule configuration information.

In some embodiments of the present disclosure, the uplink PDCP packet is forwarded by the terminal to the base station after the network address translation function is turned off, and the uplink PDCP packet is generated by the terminal based on the received uplink packet of the local area network device.

In some embodiments of the present disclosure, further comprising:

when the quintuple of the uplink PDCP data packet matches the quintuple in the preset data shunting rule, storing first bearing mapping information of the uplink PDCP data packet;

receiving a downlink IP message forwarded by the data distribution interface, wherein the downlink IP message is issued by the local IP network;

acquiring a quintuple of the downlink IP message, and generating a first downlink PDCP data packet based on the first bearer mapping information and the downlink IP message when the quintuple of the downlink IP message is matched with the quintuple of the uplink PDCP data packet;

and transmitting the first downlink PDCP data packet to the terminal through a corresponding first wireless interface, wherein the first bearing mapping information is related to the first wireless interface.

In some embodiments of the present disclosure, further comprising:

when any uplink PDCP data packet actively sent by local area network equipment under a CPE terminal is not received, receiving a test data packet sent by the CPE terminal, and generating second bearing mapping information based on the test data packet;

generating a second downlink PDCP data packet based on the second bearer mapping information and the downlink IP message;

and transmitting the second downlink PDCP data packet to the terminal through a corresponding second radio interface, wherein the second bearer mapping information is related to the second radio interface.

In a second aspect, an embodiment of the present disclosure provides a base station service data offloading device, where the base station is configured with a data offloading interface for performing data plane communication with a local IP network, and the device includes:

the information receiving module is used for receiving an uplink packet data convergence protocol PDCP data packet sent by the terminal;

an information judgment module, configured to obtain a five-tuple of the uplink PDCP data packet, and judge whether the five-tuple of the uplink PDCP data packet matches a five-tuple in a preset data offloading rule;

and the information forwarding module is used for forwarding the uplink PDCP data packet to a local IP network through the data shunting interface when the judgment result of the information judgment module is yes.

In a third aspect, an embodiment of the present disclosure provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the base station service data offloading method in any embodiment of the foregoing are implemented.

In a fourth aspect, an embodiment of the present disclosure provides an electronic device, including:

the data distribution interface is used for carrying out data plane communication with the local IP network;

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to execute the steps of the base station traffic data offloading method according to any of the above embodiments by executing the executable instructions.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

in the technical solutions provided in the embodiments of the present disclosure, after receiving an uplink packet data convergence protocol PDCP data packet sent by a terminal, a base station obtains a five-tuple of the uplink PDCP data packet, determines whether the five-tuple of the uplink PDCP data packet matches a five-tuple in a preset data offloading rule, and forwards uplink PDCP data to a local IP network through a data offloading interface configured on the base station and performing data plane communication with the local IP network if the five-tuple of the uplink PDCP data packet matches the five-tuple in the preset data offloading rule. Therefore, in the scheme of the embodiment, the data packets can be shunted to the local IP network through the data shunting interface on the base station for communication so as to realize local data shunting, so that the traditional MEC equipment is omitted, the MEC equipment does not need to be purchased or developed, and the equipment cost and the subsequent equipment maintenance cost can be greatly saved; secondly, a transmission network between the base station and the MEC equipment is omitted, and the time delay is greatly reduced; in addition, the scheme of the embodiment can communicate with the local IP network without depending on the backbone network of the operator, further reduces the time delay, prevents the local IP network from being illegally attacked from an external backbone network and the like, improves the network security, and saves the network traffic cost of the operator during the service testing period compared with the traditional communication between the backbone network depending on the operator and the local IP network.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic view of an application scenario of a base station service data offloading method according to an embodiment of the present disclosure;

fig. 2 is a flowchart of a base station service data offloading method according to an embodiment of the present disclosure;

fig. 3 is a flowchart of a base station service data offloading method according to another embodiment of the present disclosure;

fig. 4 is a flowchart of a base station service data offloading method according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of a base station service data offloading device according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

It is to be understood that, hereinafter, "at least one" means one or more, "a plurality" means two or more. "and/or" is used to describe the association relationship of the associated objects, meaning that there may be three relationships, for example, "a and/or B" may mean: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

Fig. 1 is a schematic view of an application scenario of a base station service data offloading method shown in this disclosure, which may include a local area network device 10, a terminal such as a 5G terminal 20, a base station such as a 5G base station 30, and a local IP network 40. The 5G base station 30 is provided with a data offload interface 301 for data plane communication with the local IP network 40. In one embodiment, the data offloading interface 301 may be, for example, a ten-trillion physical network port, but is not limited thereto. The 5G base station 30 is connected to a 5G core network via, for example, an N3 interface, and the 5G core network is connected to the operator backbone network via, for example, an N6 interface. The N3 interface and the N6 interface can be understood by referring to the prior art and are not described in detail herein. The 5G terminal 20 may access at least one lan device 10 within the local area network. In some scenarios, the local area network device 10 may include, but is not limited to, a surveillance camera. Accordingly, the local IP network 40 can manage the lan devices 10 such as the monitoring cameras within the local lan.

Fig. 2 is a flowchart of a base station service data offloading method shown in an embodiment of the present disclosure, where the base station service data offloading method is applied to a 5G base station 30 shown in fig. 1, and the service data offloading method may include the following steps:

step S201: and receiving an uplink packet data convergence protocol PDCP data packet sent by the terminal.

Specifically, a Packet Data Convergence Protocol (PDCP) is a Radio transmission Protocol stack in a universal Mobile Telecommunications system (umts), and is responsible for compressing and decompressing an IP header, transmitting user Data, and maintaining the IP header as a sequence number of a Radio bearer set by a lossless Serving Radio Network Subsystem (Serving Radio Network Subsystem). In this embodiment, the 5G base station 30 may receive the uplink PDCP packet sent by the 5G terminal 20 through the radio interface. Specifically, after accessing the 5G core network through the 5G signaling protocol, the 5G terminal 20 starts to perform a data plane service, and first initiates an uplink PDCP data packet, where the uplink PDCP data packet may carry an IP quintuple and reach the data plane of the 5G base station 30 through a radio interface.

Step S202: and acquiring a five-tuple of the uplink PDCP data packet, and judging whether the five-tuple of the uplink PDCP data packet matches a five-tuple in a preset data shunting rule.

Illustratively, the five-tuple may generally include a source IP address, a source port, a destination IP address, a destination port, and transport layer protocol information such as a protocol number, as shown in table 1 below.

TABLE 1

Source IP address

Source port

Destination IP address

Destination port

Protocol number

The preset data offloading rules may include preconfigured local data offloading rules, for example, a user may configure one or more local data offloading rules for the 5G base station according to actual service needs, where the local data offloading rules may include specified source IP address, source port, destination IP address, destination port, and transport layer protocol number, so as to indicate that a data packet including the specified five-tuple needs to be subjected to local data offloading.

In this embodiment, after receiving the uplink PDCP data packet sent by the 5G terminal 20, the 5G base station 30 starts decoding to obtain a five-tuple, matches the five-tuple obtained by decoding with the five-tuple in the local data offloading rule, and succeeds in matching when the two five-tuples are the same.

Step S203: and if so, forwarding the uplink PDCP data packet to a local IP network through the data shunting interface.

Illustratively, when the five-tuple of the uplink PDCP data packet matches the five-tuple in the preset data offloading rule, it indicates that the uplink PDCP data packet needs to be offloaded to the local IP network, and at this time, the uplink PDCP data packet may be forwarded to the local IP network 40 through the data offloading interface 301. As an example, during the specific processing, the uplink PDCP packet may be converted into an uplink IP packet, and the uplink IP packet is directly forwarded to the local IP network 40 by the data offloading interface, for example, forwarded to an offloading server of the local IP network.

When the quintuple of the uplink PDCP data packet does not match the quintuple in the preset data offloading rule, the uplink PDCP data packet may be transmitted to the 5G core network through the N3 interface of the 5G base station 30, and the 5G core network transmits the uplink PDCP data packet to the backbone network of the operator through the N6 interface for communication.

In the base station service data distribution method of the embodiment, firstly, the data packets can be distributed to the local IP network through the data distribution interface on the base station for communication so as to implement local data distribution, so that the traditional MEC equipment is omitted, the MEC equipment does not need to be purchased or developed, and the equipment cost and the subsequent equipment maintenance cost can be greatly saved; secondly, a transmission network between the base station and the MEC equipment is omitted, and the time delay is greatly reduced; in addition, the scheme of the embodiment can communicate with the local IP network without depending on the backbone network of the operator, further reduces the time delay, prevents the local IP network from being illegally attacked from an external backbone network and the like, improves the network security, and saves the network traffic cost of the operator during the service testing period compared with the traditional communication between the backbone network depending on the operator and the local IP network. Finally, the scheme of the embodiment of the present disclosure does not make any requirement on the mode of accessing the 5G terminal to the 5G base station, and can access the 5G core network through two networking modes, namely, Non-independent Networking (NSA) and independent networking (SA), specified by 3GPP, and the local data offloading service is not affected at all, so that there is no requirement on the signaling plane. The traditional scheme based on the MEC equipment needs to analyze the access signaling of the two networking modes, the development amount is doubled due to different access signaling of the two networking modes, the development cost is high, and the development cost can be saved by the scheme of the embodiment.

In some embodiments of the present disclosure, the preset data offloading rule further includes a Quality of Service (QoS) related parameter. Illustratively, in some embodiments of the present disclosure, the QoS-related parameters may include, but are not limited to, a quality of service Class Identifier (QoS Class Identifier, QCI for short) and/or 5QI parameters.

Specifically, the QCI is defined in the 3GPP specification, and each service data flow needs to be set. The characteristics that the QCI can define include parameters such as resource type, priority, expected delay, packet error loss rate, maximum data burst amount, and data rate averaging window. The 5QI parameter is also defined in the 3GPP specification, and the 5QI is a scalar for pointing to a 5G QoS characteristic, and these parameters can be used to control the QoS of the QoS flow forwarding process. These can be understood with reference to the prior art and will not be described in detail here.

Correspondingly, in order to improve the accuracy of service data offloading matching, when the preset data offloading rule further includes a parameter related to quality of service QoS, as shown in fig. 3, in some embodiments, the method for offloading service data of the base station may further include the following steps:

step S301: and acquiring the quintuple of the uplink PDCP data packet and the QoS related parameters.

Illustratively, step S301 may be performed after step S201. In this embodiment, after receiving the uplink PDCP data packet sent by the 5G terminal 20, the 5G base station 30 starts decoding to obtain the five-tuple and QoS related parameters, such as QCI and 5QI parameters.

Step S302: and judging whether the quintuple and the QoS related parameters of the uplink PDCP data packet are matched with the quintuple and the QoS related parameters in the preset data distribution rule or not.

Illustratively, the 5G base station 30 matches the five-tuple, QCI, and 5QI parameters obtained by decoding with the five-tuple, QCI, and 5QI parameters in the local data offloading rule, and when the two five-tuple are the same, the two QCI parameters are the same, and the two 5QI parameters are the same, the matching is successful.

Step S303: and if so, forwarding the uplink PDCP data packet to a local IP network through the data shunting interface.

Illustratively, after the matching is successful, the uplink PDCP data packet may be forwarded to the local IP network through the data offloading interface 301. As an example, during specific processing, the uplink PDCP data packet may be converted into an uplink IP packet, and the uplink IP packet is directly forwarded to the local IP network by the data offloading interface, for example, forwarded to an offloading server of the local IP network.

After the above matching fails, the uplink PDCP data packet may be transmitted to the 5G core network through the N3 interface of the 5G base station 30, and the 5G core network transmits the uplink PDCP data packet to the backbone network of the operator through the N6 interface for communication.

Optionally, in some embodiments of the present disclosure, the preset data splitting rule may include a plurality of sub-data splitting rules, where each sub-data splitting rule includes a five-tuple and a corresponding priority. For example, the priority of each sub-data splitting rule may be different, but is not limited thereto. Correspondingly, in order to improve matching efficiency when there are multiple data offloading rules, in step S202, determining whether the quintuple of the uplink PDCP data packet matches a quintuple in a preset data offloading rule may specifically include the following steps:

step i): and matching the quintuple of the uplink PDCP data packet with the quintuple in each sub-data shunting rule with the priority ordered from high to low in sequence.

For example, the preset data splitting rule may include, but is not limited to, a sub data splitting rule 1, a sub data splitting rule 2, a sub data splitting rule 3, and a sub data splitting rule 4. As shown in table 2, the priority levels corresponding to the sub-data splitting rule 1, the sub-data splitting rule 2, the sub-data splitting rule 3, and the sub-data splitting rule 4 are sequentially highest, higher, medium, and low.

TABLE 2

Presetting data distribution rule	Priority level
		Sub-data splitting rule 1	Highest point of the design
Sub-data splitting rule 2	Is higher than
		Sub-data splitting rule 3	In
Sub-data splitting rule 4	Is low in

Thus, the quintuple of the uplink PDCP data packet and the quintuple of the sub-data splitting rule 1, the sub-data splitting rule 2, the sub-data splitting rule 3 and the sub-data splitting rule 4 with the priority rank from high to low can be sequentially matched according to the priority rank.

Step ii): and if the quintuple of the uplink PDCP data packet is the same as the quintuple in one sub-data shunting rule, the matching is successful.

Illustratively, if the quintuple of the uplink PDCP data packet is the same as the quintuple in the sub-data splitting rule 1, the matching is successful, and then the uplink PDCP data packet may be forwarded to the local IP network through the data splitting interface 301. If the quintuple of the uplink PDCP data packet is different from the quintuple in the sub-data shunting rule 1, the matching fails, then the quintuple of the uplink PDCP data packet is continuously matched with the quintuple in the sub-data shunting rule 2, if the quintuple of the uplink PDCP data packet is the same as the quintuple in the sub-data shunting rule 2, the matching is successful, and the uplink PDCP data packet can be forwarded to a local IP network through the data shunting interface 301, otherwise, the matching is continuously performed in sequence.

In the above-mentioned scheme of this embodiment, when the user configures a plurality of data splitting rules, matching may be performed based on the priority of each data splitting rule, instead of performing matching by traversing a plurality of data splitting rules all over, so that the matching efficiency is improved to a certain extent, thereby further indirectly reducing the time delay.

Optionally, on the basis of the foregoing embodiments, in some embodiments of the present disclosure, the method may further include the following steps:

step a): and receiving data distribution rule configuration information, wherein the data distribution rule configuration information indicates that the preset data distribution rule is configured.

Specifically, for example, a user may input data offloading rule configuration information in a remote WEB management interface of the 5G base station to configure a preset data offloading rule, where the data offloading rule configuration information may include, for example, configured quintuple information, rule number, priority, and the like.

Step b): and configuring the preset data distribution rule based on the data distribution rule configuration information.

Illustratively, when the 5G base station receives the data distribution rule configuration information, the preset data distribution rule is configured, such as updated, based on the data distribution rule configuration information.

In the scheme of the embodiment, because the local data flow rule is configurable, the data service of the 5G terminal accessing the backbone network of the operator is not influenced at all, and the use of the backbone network of the operator by the vertical industry user is not influenced.

On the basis of the foregoing embodiments, in some embodiments of the present disclosure, the uplink PDCP data packet is forwarded to the base station, for example, the 5G base station 30, by the terminal, for example, the 5G terminal 20, after a Network Address Translation (NAT) function is closed, and the uplink PDCP data packet is generated by the terminal, for example, the 5G terminal 20, based on the received uplink data packet of the local area Network device.

Specifically, when the 5G terminal closes the NAT function and the local area network device connected thereunder has an uplink data packet, the uplink data packet is processed by the 5G terminal 20 and forwarded to the 5G base station 30, and the data service processing logic flow is also the flow shown in fig. 2 or fig. 3, so that the session IP allocated to the 5G terminal 20 by the 5G core network is not relied on, and the IP in the subnet divided in the local area network can be used, so that the local IP network can easily and conveniently access the network data service of any local area network device in the subnet, such as HTTP service, FTP service, video streaming service, and the like. This function cannot be implemented by the UPF specified by 3GPP, and can only be implemented by the local data offloading policy in this embodiment. Therefore, the user can conveniently access all the devices in the local area network affiliated to the 5G terminal.

Optionally, on the basis of the foregoing embodiments, in some embodiments of the present disclosure, in order to facilitate accurate access to the local area network device in the local IP network, as shown in fig. 4, the method further includes the following steps:

step S401: and when the quintuple of the uplink PDCP data packet matches the quintuple in the preset data shunting rule, storing first bearing mapping information of the uplink PDCP data packet.

For example, when the matching of the uplink PDCP data packet sent by the 5G terminal 20 by the 5G base station 30 is successful, the first bearer mapping information for storing the uplink PDCP data packet is recorded, and the first bearer mapping information may be used as a downlink forwarding rule of the following first downlink PDCP data packet.

Step S402: and receiving a downlink IP message forwarded by the data distribution interface, wherein the downlink IP message is issued by the local IP network.

Illustratively, when a distribution server of the local IP network has a downlink data packet, a corresponding downlink IP packet sent by the local IP network enters the data distribution interface 301 of the 5G base station 30 through a route, and the 5G base station 30 receives the downlink IP packet.

Step S403: and acquiring a quintuple of the downlink IP message, and generating a first downlink PDCP data packet based on the first bearer mapping information and the downlink IP message when the quintuple of the downlink IP message is matched with the quintuple of the uplink PDCP data packet.

Illustratively, when the data plane of the 5G base station 30 receives the downlink IP packet, it needs to query the first bearer mapping information stored in the previous uplink logic, and the specific query process may be to obtain a five-tuple of the downlink IP packet, and when the five-tuple of the downlink IP packet matches the five-tuple of the uplink PDCP data packet, it queries the corresponding first bearer mapping information, and at this time, the first downlink PDCP data packet may be generated based on the first bearer mapping information and the downlink IP packet.

Step S404: and transmitting the first downlink PDCP data packet to the terminal through a corresponding first wireless interface, wherein the first bearing mapping information is related to the first wireless interface.

Illustratively, the wireless interfaces to which different 5G terminals 20 are communicatively coupled to the 5G base station may be different. When the first bearer mapping information is used as a downlink forwarding rule of the downlink PDCP packet, the first bearer mapping information may carry an identifier of a first radio interface when the 5G terminal 20 sends the uplink PDCP packet to the 5G base station 30, that is, the uplink PDCP packet sent by the 5G terminal 20 is sent through the first radio interface, and at this time, the downlink PDCP packet also needs to be sent to the 5G terminal 20 through the first radio interface.

Specifically, the 5G base station 30 generates a first downlink PDCP data packet, and transmits the first downlink PDCP data packet to the 5G terminal through the first radio interface. And if the corresponding first bearing mapping information cannot be found, discarding the downlink IP message.

In the above solution of this embodiment, the bearer mapping information of the uplink PDCP data packet when the data offloading matching is successful is first stored to serve as a downlink forwarding rule, so that the local area network device affiliated to the 5G terminal 20 can be conveniently and accurately accessed in the local IP network.

Optionally, in some embodiments of the present disclosure, the method further includes the steps of:

step 1): and when any uplink PDCP data packet actively sent by the local area network equipment under the CPE terminal is not received, receiving a test data packet sent by the CPE terminal, and generating second bearing mapping information based on the test data packet.

For example, the 5G terminal may include a CPE terminal, and when the local area network device under the CPE terminal does not actively send any uplink data after the CPE terminal accesses the 5G core network, it needs to first send a test data packet by using the CPE terminal, and generate second bearer mapping information based on the test data packet. For example, based on the CPE terminal initiating an uplink test data packet, such as a ping packet, to generate the second bearer mapping information, the detailed content of the CPE terminal may refer to the prior art, which is not described herein again. The second bearer mapping information may be the same as the first bearer mapping information described above, but is not limited thereto, except for the determination manner. The second bearer mapping information may be used as a downlink forwarding rule of a second downlink PDCP packet described below.

Step 2): and receiving a downlink IP message forwarded by the data distribution interface, wherein the downlink IP message is issued by the local IP network.

When the distribution server of the local IP network has a downlink data packet, the corresponding downlink IP packet sent by the local IP network enters the data distribution interface 301 of the 5G base station 30 through a route, and the 5G base station 30 receives the downlink IP packet.

Step 3): and generating a second downlink PDCP data packet based on the second bearer mapping information and the downlink IP message.

Step 4): and transmitting the second downlink PDCP data packet to the terminal through a corresponding second radio interface, wherein the second bearer mapping information is related to the second radio interface.

Specifically, when the second bearer mapping information is used as a downlink forwarding rule of the second downlink PDCP packet, the second bearer mapping information may carry an identifier of the second radio interface when the 5G base station 30 sends the downlink second downlink PDCP packet to the 5G terminal 20.

Specifically, the 5G base station 30 generates a second downlink PDCP data packet, and transmits the second downlink PDCP data packet to the 5G terminal 20 through the second radio interface. In this embodiment, if the local IP network initiates downlink data to the 5G terminal 20, the radio interface for forwarding the downlink PDCP data packet normally may be determined based on the second bearer mapping information.

To sum up, the scheme of the embodiment of the present disclosure may be innovatively developed on the basis of a 5G base station, and on the premise of not depending on the introduction of external MEC equipment, the basic function traditionally implemented by the MEC equipment is simply and conveniently implemented by directly using a data distribution interface configured in the 5G base station, so as to provide a 5G base station having the MEC basic function for vertical industry customers with the least equipment cost, and the base station can communicate with a local IP network, can conveniently access any local area network equipment in a local area network attached to a 5G terminal, and has the advantages of low time delay, low cost, good safety, and the like.

It should be noted that although the various steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that these steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc. Additionally, it will also be readily appreciated that the steps may be performed synchronously or asynchronously, e.g., among multiple modules/processes/threads.

Based on the same concept, an embodiment of the present disclosure further provides a base station service data offloading device, where a base station, such as a 5G base station, is configured with a data offloading interface for performing data plane communication with a local IP network, and as shown in fig. 5, the base station service data offloading device may include:

an information receiving module 501, configured to receive an uplink packet data convergence protocol PDCP data packet sent by a terminal;

an information determining module 502, configured to obtain a five-tuple of the uplink PDCP data packet, and determine whether the five-tuple of the uplink PDCP data packet matches a five-tuple in a preset data offloading rule;

an information forwarding module 503, configured to forward the uplink PDCP data packet to a local IP network through the data offloading interface if the determination result of the information determining module 502 is yes.

The base station service data distribution device of the embodiment can distribute the data packets to the local IP network through the data distribution interface on the base station for communication so as to realize local data distribution, thereby omitting the traditional MEC equipment, not needing to purchase or develop the MEC equipment, greatly saving the equipment cost and the subsequent maintenance cost, simultaneously omitting the transmission network between the base station and the MEC equipment, and greatly reducing the time delay; in addition, the scheme of the embodiment can communicate with the local IP network without depending on the backbone network of the operator, further reduces the time delay, prevents the local IP network from being illegally attacked from an external backbone network and the like, improves the network security, and saves the flow cost of the operator data network during the service testing period compared with the traditional communication between the backbone network depending on the operator and the local IP network. Finally, the scheme of the embodiment of the present disclosure does not make any requirement on the mode of accessing the 5G terminal to the 5G base station, and can access the 5G core network through two networking modes, namely, NSA and SA, specified by 3GPP, and the local data offloading service is not affected at all, so that there is no requirement on the signaling plane. The traditional scheme based on the MEC equipment needs to analyze the access signaling of the two networking modes, the development amount is doubled due to different access signaling of the two networking modes, the development cost is high, and the development cost can be saved by the scheme of the embodiment.

Optionally, in some embodiments of the present disclosure, the preset data offloading rule further includes a quality of service QoS related parameter, and correspondingly, the information determining module 502 is further configured to obtain a quintuple of the uplink PDCP data packet and a quality of service QoS related parameter, and determine whether the quintuple of the uplink PDCP data packet and the quality of service QoS related parameter match the quintuple and the quality of service QoS related parameter in the preset data offloading rule; the information forwarding module 503 is further configured to forward the uplink PDCP data packet to the local IP network through the data offloading interface if the determination result of the information determining module is yes.

Optionally, in some embodiments of the present disclosure, the QoS-related parameters may include, but are not limited to, a quality of service class identifier, QCI, and/or 5QI parameters.

Optionally, in some embodiments of the present disclosure, the preset data splitting rule includes a plurality of sub data splitting rules, and each sub data splitting rule includes a quintuple and a corresponding priority; correspondingly, the information determining module 502 determines whether the quintuple of the uplink PDCP data packet matches a quintuple in a preset data offloading rule, which may specifically include: matching the quintuple of the uplink PDCP data packet with the quintuple in each sub-data shunting rule with the priority ordered from high to low in sequence; and if the quintuple of the uplink PDCP data packet is the same as the quintuple in one sub-data shunting rule, the matching is successful.

Optionally, in some embodiments of the present disclosure, the apparatus further includes a rule configuration module, configured to receive data distribution rule configuration information, where the data distribution rule configuration information indicates to configure the preset data distribution rule; and configuring the preset data distribution rule based on the data distribution rule configuration information.

Optionally, in some embodiments of the present disclosure, the uplink PDCP data packet is forwarded to the base station by the terminal after the network address translation function is turned off, and the uplink PDCP data packet is generated by the terminal based on a received uplink data packet of the local area network device.

Optionally, in some embodiments of the present disclosure, the apparatus may further include:

a bearer information recording module, configured to store first bearer mapping information of the uplink PDCP data packet when a quintuple of the uplink PDCP data packet matches a quintuple in the preset data offloading rule;

a downlink message receiving module, configured to receive a downlink IP message forwarded by the data offloading interface, where the downlink IP message is issued by the local IP network;

a downlink packet processing module, configured to obtain a quintuple of the downlink IP packet, and generate a first downlink PDCP packet based on the first bearer mapping information and the downlink IP packet when the quintuple of the downlink IP packet matches the quintuple of the uplink PDCP packet;

the information forwarding module is further configured to transmit the first downlink PDCP data packet to the terminal through a corresponding first radio interface, where the first bearer mapping information is related to the first radio interface.

the bearer information determining module is used for receiving a test data packet sent by the CPE terminal when any uplink PDCP data packet actively sent by local area network equipment under the CPE terminal is not received, and generating second bearer mapping information based on the test data packet;

a downlink message processing module, configured to generate a second downlink PDCP data packet based on the second bearer mapping information and the downlink IP message;

the information forwarding module is further configured to transmit the second downlink PDCP data packet to the terminal through a corresponding second radio interface, where the second bearer mapping information is related to the second radio interface.

The specific manner in which the above-mentioned embodiments of the apparatus, and the corresponding technical effects brought about by the operations performed by the respective modules, have been described in detail in the embodiments related to the method, and will not be described in detail herein.

It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units. The components shown as modules or units may or may not be physical units, i.e. may be located in one place or may also be distributed over a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the wood-disclosed scheme. One of ordinary skill in the art can understand and implement it without inventive effort.

The embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the base station service data offloading method according to any of the embodiments above.

By way of example, and not limitation, such readable storage media can be an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The computer readable storage medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable storage medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

As shown in fig. 6, the base station 30 includes a data offloading interface 301, a processor 302, and a memory 303, where the data offloading interface 301 is configured to perform data plane communication with the local IP network 40, and the memory 303 is configured to store executable instructions of the processor 302. Wherein the processor 302 is configured to execute the steps of the base station traffic data offloading method in any of the above embodiments by executing the executable instructions.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), synchronous link DRAM (Synchlink) DRAM (SLDRAM), Rambus DRAM (RDRAM), and interface DRAM (DRDRAM).

Through the above description of the embodiments, those skilled in the art will readily appreciate that the exemplary embodiments described herein may be implemented by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, where the software product may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a base station, or a network device, etc.) to execute the above-mentioned base station service data offloading method according to the embodiments of the present disclosure.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for offloading service data of a base station, wherein the base station is configured with a data offloading interface for performing data plane communication with a local IP network, the method comprising:

2. The traffic data offloading method according to claim 1, wherein the preset data offloading rule further includes a quality of service (QoS) related parameter, and the method further includes:

3. The traffic data offloading method of claim 2, wherein the QoS related parameters comprise a QoS Class Identifier (QCI) and/or 5QI parameters.

4. The traffic data splitting method according to claim 1, wherein the preset data splitting rule includes a plurality of sub-data splitting rules, each of the sub-data splitting rules includes a quintuple and a corresponding priority;

5. The method for offloading traffic data according to claim 1, further comprising:

6. The method of claim 1, wherein the uplink PDCP data packet is forwarded by the terminal to the base station after a network address translation function is turned off, and the uplink PDCP data packet is generated by the terminal based on a received uplink data packet of a local area network device.

7. The service data offloading method according to any one of claims 1 to 6, further comprising:

8. The service data offloading method according to any one of claims 1 to 6, further comprising:

9. A device for offloading traffic data of a base station, wherein the base station is configured with a data offloading interface for performing data plane communication with a local IP network, the device comprising:

10. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the base station traffic data offloading method according to any of claims 1 to 8.

11. A base station, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to execute the steps of the base station traffic data offloading method according to any one of claims 1 to 8 via executing the executable instructions.