CN112770359A - Data distribution method and equipment - Google Patents
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Abstract
A data distribution method and device are provided, the method comprises: receiving a first data stream sent by a first terminal; identifying whether the first data stream belongs to a data stream under a local shunting label; and when the first data stream belongs to the data stream under the local shunt label, forwarding the data stream to a preset format conversion server, wherein the format conversion server is connected between the first base station and the local service server. The data distribution method and the data distribution equipment provided by the embodiment of the invention are based on the wireless side label, provide a scheme for more conveniently realizing the local distribution of the user plane data, and can meet the safety requirement of the existing vertical industry on the data and the requirement of the continuity of the user service.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a data distribution method and equipment.
Background
In the prior art, network deployment in vertical industries (such as transportation, energy, video entertainment, industry, smart city, medical, agricultural, financial, and educational industries) mainly comprises wired network and WiFi. At present, the vertical industry has strong requirements for 5G network deployment and has high requirements for data security, and the specific requirements comprise that production data in a garden does not physically go out of the garden and the data is locally shunted.
The data local distribution scheme in the prior art is roughly divided into two types, specifically: 1) local data distribution is performed through a User Plane Function (UPF) network element defined in 3 GPP; 2) and (3) shunting the destination IP address data through a base station (or a tandem device on the S1 link), wherein the scheme 2 belongs to the implementation of a private scheme.
In the above scheme 1, in an implementation manner of an Uplink Classifier (UL CL) function based on the existing UPF, a public network user can access a local application even knowing an IP address of a local service server, so that a greater security risk exists; in an implementation of a Local Area Data Network (LADN) based on the UPF, it is required to ensure that access to a Local Network and a public Network of a user is isolated by an Access Point (APN) through a user subscription. The cost of separately deploying one UPF in each park is relatively high, and in addition, data of the UPF needs to be forwarded back from the park to the UPF deployed in an operator machine room, so that the requirements of the existing vertical industry are difficult to meet.
In the above scheme 1, the base station or the external added network element is used to distinguish the destination IP, which cannot ensure that the user is a local user in a factory or a campus, and the external user may also access the local content through the IP address, so that secondary authentication is required, which still needs to distinguish the local user from the public network user through additional function deployment.
It can be seen that the above-mentioned local distribution scheme in the prior art generally has the problems of high deployment cost and difficulty in meeting the customer requirements of the vertical industry.
Disclosure of Invention
At least one embodiment of the invention provides a data distribution method, a terminal and network equipment, which can reduce the implementation cost of local data distribution and can meet the requirement of a vertical industry client on local distribution.
According to another aspect of the present invention, at least one embodiment provides a data offloading method, applied to a first base station, including:
receiving a first data stream sent by a first terminal;
identifying whether the first data stream belongs to a data stream under a local shunting label;
and when the first data stream belongs to the data stream under the local shunt label, forwarding the data stream to a preset format conversion server, wherein the format conversion server is connected between the first base station and the local service server.
Optionally, the method further includes:
and receiving a second data stream of which the destination address forwarded by the format forwarding server is the first terminal, and forwarding the second data stream to the first terminal according to the destination address of the second data stream.
Optionally, the step of identifying whether the first data flow belongs to a data flow under a local breakout tag includes one or more of the following manners:
identifying whether the first data stream belongs to a data stream under a local shunting label or not according to whether a first time-frequency resource for transmitting the first data stream belongs to a time-frequency resource under the local shunting label or not; or,
identifying whether the first data stream belongs to the data stream under the local shunting label or not according to whether the first slice corresponding to the first data stream is the slice under the local shunting label or not; or,
and identifying whether the first data stream belongs to the data stream under the local distribution label or not according to whether the access label carried by the first data stream belongs to the local distribution label or not.
Optionally, before the step of receiving the first data stream sent by the first terminal, the method further includes:
when the first terminal accesses the first base station, determining whether a first data stream of the first terminal needs to be locally distributed according to user subscription information of the first terminal, and configuring relevant parameters of the first data stream according to whether the first data stream of the first terminal needs to be locally distributed, wherein the relevant parameters include one or more of the following parameters:
transmitting a first time-frequency resource of the first data stream;
a first slice corresponding to the first data stream;
and the first access label corresponds to the first data flow.
Optionally, the method further includes:
when the first base station determines to switch a first terminal to a second base station, the first base station sends a switching request aiming at the first terminal to the second base station, and after receiving a switching request confirmation message returned by the second base station, the first base station sends a switching command for switching to the second base station to the first terminal, so that the first data stream is divided to a local service server through the second base station after the first terminal is switched to the second base station;
optionally, the method further includes:
the first base station sends a reconfiguration message to the first terminal when local offload of a first data flow needs to be cancelled, and reconfigures relevant parameters of the first data flow in a process that the first terminal accesses the first base station again, where the relevant parameters include one or more of the following parameters:
transmitting a second time-frequency resource of the first data stream, wherein the second time-frequency resource does not belong to the time-frequency resource under a local shunt label;
a second slice corresponding to the first data stream, wherein the second slice does not belong to a slice under a local shunting label;
and the second access label corresponding to the first data flow does not belong to the access label under the local shunt label.
The embodiment of the invention also provides a data distribution method, which is applied to a format conversion server, wherein the format forwarding server is connected between the first base station and the local service server, and the method comprises the following steps:
receiving a first data stream sent by a first base station, wherein the first data stream is forwarded after the first base station performs local distribution on the first terminal;
and performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server.
Optionally, the method further includes:
receiving a second data stream with a destination address of the first terminal, which is sent by the local service server;
and performing format conversion processing on the second data stream, converting the second data stream into a data stream which can be identified by the first base station, and then sending the data stream to the first base station.
Optionally, the method further includes:
performing format conversion processing on the first data stream comprises: converting the first data flow from a GTP-U data flow to an IP service flow;
performing format conversion processing on the second data stream includes: and converting the second data flow from the IP service flow to the GTP-U data flow.
Optionally, after the first terminal is handed over from the first base station to the second base station, the method further includes:
receiving the first data stream from the first terminal, which is shunted and forwarded by the second base station, performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server; and the number of the first and second groups,
and receiving a second data stream with a destination address of the first terminal sent by the local service server, performing format conversion processing on the second data stream, converting the second data stream into a data stream which can be identified by the second base station, and sending the data stream to the second base station.
An embodiment of the present invention further provides a first base station, including:
the receiving module is used for receiving a first data stream sent by a first terminal;
the identification module is used for identifying whether the first data stream belongs to the data stream under the local shunting label;
and the shunting module is used for forwarding the data stream to a preset format conversion server when the first data stream belongs to the data stream under the local shunting label, and the format conversion server is connected between the first base station and the local service server.
The embodiment of the invention also provides a base station, which comprises a transceiver and a processor, wherein,
the transceiver is used for receiving a first data stream sent by a first terminal;
the processor is configured to identify whether the first data flow belongs to a data flow under a local breakout tag; and when the first data stream belongs to the data stream under the local shunt label, forwarding the data stream to a preset format conversion server, wherein the format conversion server is connected between the first base station and the local service server.
An embodiment of the present invention further provides a base station, including: a processor, a memory and a program stored on the memory and executable on the processor, the program implementing the steps of the data offloading method as described above when executed by the processor.
An embodiment of the present invention further provides a format conversion server, including:
a receiving module, configured to receive a first data stream sent by a first base station, where the first data stream is forwarded after the first base station performs local offloading on the first terminal;
and the conversion module is used for performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server.
The embodiment of the invention also provides a format conversion server, which comprises a transceiver and a processor, wherein,
the transceiver is configured to receive a first data stream sent by a first base station, where the first data stream is forwarded after the first base station performs local offloading on the first terminal;
and the processor is used for performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server.
An embodiment of the present invention further provides a format conversion server, including: a processor, a memory and a program stored on the memory and executable on the processor, the program implementing the steps of the data offloading method as described above when executed by the processor.
According to another aspect of the invention, at least one embodiment provides a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of the method as described above.
Compared with the prior art, the data distribution method and the data distribution equipment provided by the embodiment of the invention provide a scheme for conveniently realizing local distribution of user plane data based on wireless side labels (such as slice ID, QCI or bearer, and the like), can meet the safety requirement of the existing vertical industry on data, and can meet the requirement of user service continuity.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic view of an application scenario according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another application scenario of the embodiment of the present invention;
fig. 3 is a flowchart of a data offloading method according to an embodiment of the present invention applied to a base station side;
fig. 4 is a flowchart illustrating a data offloading method according to an embodiment of the present invention applied to a format conversion server;
fig. 5 is an interaction example diagram of a data offloading method according to an embodiment of the present invention;
fig. 6 is a diagram illustrating another example of interaction of a data offloading method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a format conversion server according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a format conversion server according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.
The techniques described herein are not limited to NR systems and Long Time Evolution (LTE)/LTE Evolution (LTE-a) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.21(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.
The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
As described in the background art, a local offloading scheme in the prior art generally has a problem of high deployment cost and difficulty in meeting customer requirements of a vertical industry, and to solve at least one of the above problems, an embodiment of the present invention provides a local data offloading scheme, in which user offloading is implemented through a base station identifier (specifically, a slice ID, an independent PLMN, and the like), a user in a local scene is accessed to a specific tag, and a base station (or a newly added device) offloads directly a user with the tag, so that a problem of security of permission of the existing scheme that the user is difficult to distinguish between access to a local service and a public network service can be solved, and meanwhile, the implementation cost of the scheme is low, and a problem of sensitivity of the existing vertical industry to the cost is better solved.
The data offloading method provided by the embodiment of the present invention may be applied to multiple scenarios, and two application scenario diagrams of the embodiment of the present invention are provided below, where it should be noted that the following examples are only some scenarios that the embodiment of the present invention may be applied to, and are not used to limit the present invention.
Fig. 1 shows an application scenario of the embodiment of the present invention, in which a user terminal UE 10 in a vertical industry in a coverage area of a base station 20 has both a requirement for accessing a local network service (e.g., a campus IDC room in fig. 1) and a requirement for accessing a public network (e.g., the Internet in fig. 1). For the user terminal of the type, the embodiment of the invention can provide a plurality of access tags, such as tag IDs 31-32 (which can be sent to the terminal by a core network through a user subscription or a tag reconfiguration process), so that the service distribution of the local network service and the public network service of the user can be realized through the base station.
Fig. 2 shows another application scenario of the embodiment of the present invention, in which the user terminals UE 11 in the vertical industry in the coverage area of the base station 21 and the base station 22 have public network service requirements and the user terminals UE 12 have local network service requirements, wherein the user terminals UE 11 having the public network service requirements do not access the local network, and the user terminals UE 12 having the local network service requirements do not access the public network service. The embodiment of the invention can realize the access to the wireless network with a specific label (or distributed by a core network) through the user subscription information aiming at different service requirement user terminals, thereby providing different label accesses, such as label IDs 33-34, and realizing the service distribution of the local network service and the public network service of the user.
Referring to fig. 3, when the data offloading method provided in the embodiment of the present invention is applied to a base station (for convenience of description, referred to as a first base station), the method includes:
And step 32, identifying whether the first data stream belongs to the data stream under the local shunting label.
Here, after receiving a first data stream sent by a first terminal, a first base station determines whether the first data stream is a data stream under a local breakout tag. The local offload label is a preconfigured/allocated access label for indicating whether the data stream needs to be locally offloaded. In this embodiment of the present invention, the access label of the first data flow may be carried in the first data flow, and at this time, the access label of the first data flow may be regarded as being indicated by an explicit indication manner. The access label of the first data flow may also be identified by the first base station according to the relevant parameters (such as time-frequency resources, slices, and the like) of the first data flow instead of being carried in the first data flow, where the access label of the first data flow may be regarded as being indicated in an implicit indication manner.
Specifically, in step 32, the first base station may identify whether the first data stream belongs to a data stream under a local breakout tag according to whether the first time-frequency resource for transmitting the first data stream belongs to a time-frequency resource under the local breakout tag; or,
identifying whether the first data stream belongs to the data stream under the local shunting label or not according to whether the first slice corresponding to the first data stream is the slice under the local shunting label or not; or,
and identifying whether the first data stream belongs to the data stream under the local distribution label or not according to whether the access label carried by the first data stream belongs to the local distribution label or not.
And step 33, when the first data stream belongs to a data stream under a local breakout tag, forwarding the data stream to a predetermined format conversion server, where the format conversion server is connected between the first base station and a local service server.
Specifically, the first base station sends the first data stream to a format conversion server, and the format conversion server performs format conversion processing on the first data stream, converts the first data stream into a data stream that can be identified by a local service server, and then sends the data stream to the local service server.
Through the steps, the embodiment of the invention carries out local data distribution by taking the wireless side tag as a distribution strategy, can directly distinguish the local user from the public network user, ensures the data isolation, can simply and conveniently realize the isolation of the local service and the public network service, has easy implementation of a distribution implementation scheme and lower implementation cost.
In addition, in the embodiment of the present invention, the first base station may further receive a second data stream whose destination address forwarded by the format forwarding server is the first terminal, and forward the second data stream to the first terminal according to the destination address of the second data stream, thereby implementing bidirectional transmission of the data stream between the terminal and the local service server.
Before step 31, when the first terminal accesses the first base station (for example, the first terminal is accessed through an initial access procedure after being powered on, or the first terminal is switched to the first base station), the first base station may determine, according to user subscription information of the first terminal, whether the first data stream of the first terminal needs to be locally split, and configure relevant parameters of the first data stream according to whether the first data stream of the first terminal needs to be locally split, where the relevant parameters include one or more of the following parameters:
transmitting a first time-frequency resource of the first data stream;
a first slice corresponding to the first data stream;
and the first access label corresponds to the first data flow.
For example, in the process that the first terminal accesses the first base station, the first base station may allocate, according to the user subscription information, a time-frequency resource under a local offload label to the first data stream when it is determined that the first data stream needs to be locally offloaded, and thus, when the first base station receives the first data stream, it may determine that the first data stream needs to be offloaded according to that the used time-frequency resource belongs to the time-frequency resource under the local offload label.
For another example, in the process that the first terminal accesses the first base station, the first base station may allocate, according to the subscription information, a slice under a local offload label (assumed to be a first slice) to the first data stream when it is determined that the first data stream needs to be locally offloaded, so that when the first base station receives the first data stream, it may determine that the first data stream needs to be offloaded according to that the used first slice belongs to the slice under the local offload label.
For another example, in a process that a first terminal accesses a first base station, the first base station may allocate, according to user subscription information, an access label (assumed to be a first access label) under a local offload label to a first data flow when it is determined that the first data flow needs to be locally offloaded, so that when the first base station receives the first data flow, the first base station may determine that the first data flow needs to be offloaded according to that the first access label carried in the first data flow belongs to the access label under the local offload label. Here, the access label may specifically be a label such as QoS Class Identifier (QCI).
In the embodiment of the present invention, the user subscription information may be pre-stored in the first terminal side, or may be newly configured or reconfigured for the terminal by the core network through the reconfiguration message.
In practical applications, a first terminal may need to be switched due to factors such as location movement, for example, to switch from a first base station to a second base station. Here, the second base station is also connected to a local service server through the format forwarding server. Through the steps, the embodiment of the invention can utilize the existing Xn interface to realize the service continuity guarantee of the user local network.
In addition, in this embodiment of the present invention, the first base station may further cancel the local breakout of the first data flow when needed, at this time, the first base station may further send a reconfiguration message to the first terminal, the first terminal re-accesses the first base station according to the reconfiguration message, and in a re-access process, the first base station re-configures relevant parameters of the first data flow, where the relevant parameters include one or more of the following parameters:
transmitting a second time-frequency resource of the first data stream, wherein the second time-frequency resource does not belong to the time-frequency resource under a local shunt label;
a second slice corresponding to the first data stream, wherein the second slice does not belong to a slice under a local shunting label;
and the second access label corresponding to the first data flow does not belong to the access label under the local shunt label.
In this way, after receiving the first data stream, the subsequent first base station recognizes that the first data stream does not belong to the data stream under the local offload label, and therefore, the first data stream is forwarded to the core network without performing local offload.
Referring to fig. 4, when the data offloading method provided in the embodiment of the present invention is applied to a format conversion server side (where the format conversion server is connected between a first base station and a local service server), the method includes:
Here, the first data stream is a data stream belonging to a local offload label, and is forwarded to the format conversion server after being subjected to local offload processing by the first base station.
And 42, performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and sending the data stream to the local service server.
Here, the format conversion server performs format conversion processing on the first data flow, and specifically, the first data flow may be converted from a GPRS tunneling protocol-U (GTP-U) data flow to an IP service flow, and then sent to the local service server.
Through the steps, the embodiment of the invention can convert the format of the data stream and send the converted data stream to the local service server by adding the format conversion server of the data stream between the base station and the local service server, thereby realizing the local distribution processing.
In addition, the format conversion server may further receive a second data stream with a destination address of the first terminal, which is sent by the local service server. And then, performing format conversion processing on the second data stream, converting the second data stream into a data stream which can be identified by the first base station, and then sending the data stream to the first base station. For example, the second data stream is converted from an IP service stream to a GTP-U data stream and then forwarded to the first base station, thereby realizing bidirectional transmission of the data stream between the first base station and the local service server.
When a first terminal is switched from a first base station to a second base station (assuming that the first base station and the second base station are both connected with a format conversion server), the format conversion server may further receive the first data stream from the first terminal, which is shunted and forwarded by the second base station, perform format conversion processing on the first data stream, convert the first data stream into a data stream that can be identified by the local service server, and then send the data stream to the local service server; and receiving a second data stream with a destination address of the first terminal sent by the local service server, performing format conversion processing on the second data stream, converting the second data stream into a data stream which can be identified by the second base station, and sending the data stream to the second base station. Through the steps, the embodiment of the invention can ensure the service continuity of the user local network.
The data offloading method according to the embodiment of the present invention is described above from the base station and the format conversion server side, respectively. The following further describes the embodiments of the present invention by way of examples of interactions between various devices.
Referring to fig. 5, an example of a ue accessing a base station and performing local data offloading includes:
step 51, the user terminal (industry user) is powered on to complete normal registration and authentication processes, and is accessed to the base station. The user subscription information can ensure that the user accesses a wireless network with a specific tag, such as a wireless network with a specific slice, a wireless network with a specific time-frequency resource or a specific access tag. In addition, the user terminal can be re-accessed to the wireless network through core network reconfiguration, and the terminal is accessed to the wireless network with a specific label in the re-access process.
Step 52, the base station at the wireless side identifies the access data stream in the specific tag sent by the user terminal, specifically, the access data stream can be identified according to the slice, time-frequency resource or access tag used by the data stream.
And 53, the base station directly shunts the data traffic under the label to a specified format conversion server, wherein the format conversion server is connected between the base station and a third-party service server and can be used for carrying out format conversion on GTP-U data flow and IP service flow of the base station.
Step 54, the format conversion server packages the GTP-U tunnel data forwarded by the base station into an IP data stream, and sends the IP data stream to the third-party server;
and step 55, the third-party service server feeds back the user IP data to the format conversion server, and the format conversion server repackages the user IP data into service tunnel data streams which can be identified by the base station.
And step 56, the data stream converted by the format conversion server is sent to the user terminal through the base station, thereby completing the data interaction of the service layer.
Referring to fig. 6, fig. 6 is a diagram illustrating an example of a service continuity guarantee scheme for a user terminal, where a base station a and a base station B are both connected to a format conversion server, the user terminal performs local offloading through the base station a, and when the user terminal is switched from the base station a to the base station B, an Xn interface of the base station may be multiplexed at this time, and a specific flow is as follows:
and step 61, the user terminal moves in the garden, enters the coverage range of the base station B from the coverage range of the base station A, performs a handover (handover) process between the base station A and the base station B, and the base station A sends a handover request to the base station B.
And step 62, completing handover request confirmation process between the base station B and the base station A.
And step 63, the user terminal completes access switching, and subsequent data is sent to the format conversion server through the base station B.
And step 64, the format conversion server performs data format conversion on the data sent by the base station B, and encapsulates the data into an IP data packet, and for a third-party service server, the IP address of the data packet does not need to be changed at this time, so that the service continuity is ensured.
And step 65, the third-party service server completes the data reply of the corresponding UE and sends the data reply to the format conversion server.
And step 66, the format conversion server re-encapsulates the corresponding data into GTP-U format data which can be identified by the base station, and then the GTP-U format data is sent to the user terminal through the base station B, so that the service continuity guarantee of the users in the garden is realized.
It can be seen from the above flow that the embodiment of the present invention provides a scheme for more easily implementing the isolation guarantee between the local service and the public network service based on the wireless side tag (e.g., slice ID, QCI, or bearer, etc.), and can implement user plane data splitting, meet the security requirement of the existing vertical industry for data, and simultaneously meet the requirement of user service continuity.
Various methods of embodiments of the present invention have been described above. An apparatus for carrying out the above method is further provided below.
An embodiment of the present invention provides a first base station 70 shown in fig. 7, including:
a receiving module 71, configured to receive a first data stream sent by a first terminal;
an identifying module 72, configured to identify whether the first data flow belongs to a data flow under a local breakout tag;
the offloading module 73 is configured to forward the data stream to a predetermined format conversion server when the first data stream belongs to a data stream under a local offloading tag, where the format conversion server is connected between the first base station and a local service server.
Optionally, the receiving module 71 is further configured to receive a second data stream of which the destination address forwarded by the format forwarding server is the first terminal, and forward the second data stream to the first terminal according to the destination address of the second data stream.
Optionally, the identifying module 72 is further configured to:
identifying whether the first data stream belongs to a data stream under a local shunting label or not according to whether a first time-frequency resource for transmitting the first data stream belongs to a time-frequency resource under the local shunting label or not; or,
identifying whether the first data stream belongs to the data stream under the local shunting label or not according to whether the first slice corresponding to the first data stream is the slice under the local shunting label or not; or,
and identifying whether the first data stream belongs to the data stream under the local distribution label or not according to whether the access label carried by the first data stream belongs to the local distribution label or not.
Optionally, the first base station further includes:
a configuration module, configured to determine whether a first data flow of a first terminal needs to be locally split according to user subscription information of the first terminal when the first terminal accesses the first base station, and configure relevant parameters of the first data flow according to whether the first data flow of the first terminal needs to be locally split, where the relevant parameters include one or more of the following parameters:
transmitting a first time-frequency resource of the first data stream;
a first slice corresponding to the first data stream;
and the first access label corresponds to the first data flow.
Optionally, the first base station further includes:
the switching processing module is used for sending a switching request aiming at a first terminal to a second base station when the first terminal is determined to be switched to the second base station, and sending a switching command for switching to the second base station to the first terminal after receiving a switching request confirmation message returned by the second base station, so that the first data stream is distributed to a local service server through the second base station after the first terminal is switched to the second base station; wherein the second base station is also connected to a local service server through the format forwarding server.
Optionally, the first base station further includes:
an offload cancellation module, configured to send a reconfiguration message to the first terminal when local offload of a first data flow needs to be cancelled, and reconfigure relevant parameters of the first data flow in a process that the first terminal re-accesses a first base station, where the relevant parameters include one or more of the following parameters:
transmitting a second time-frequency resource of the first data stream, wherein the second time-frequency resource does not belong to the time-frequency resource under a local shunt label;
a second slice corresponding to the first data stream, wherein the second slice does not belong to a slice under a local shunting label;
and the second access label corresponding to the first data flow does not belong to the access label under the local shunt label.
Referring to fig. 8, an embodiment of the present invention provides a structural diagram of a first base station 800, including: a processor 801, a transceiver 802, a memory 803, and a bus interface, wherein:
in this embodiment of the present invention, the first base station 800 further includes: a program stored on the memory 803 and executable on the processor 801, which when executed by the processor 801, performs the steps of:
receiving a first data stream sent by a first terminal;
identifying whether the first data stream belongs to a data stream under a local shunting label;
and when the first data stream belongs to the data stream under the local shunt label, forwarding the data stream to a preset format conversion server, wherein the format conversion server is connected between the first base station and the local service server.
It can be understood that, in the embodiment of the present invention, when being executed by the processor 801, the computer program can implement each process of the data offloading method embodiment shown in fig. 3, and can achieve the same technical effect, and for avoiding repetition, the description is omitted here.
In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 801, and various circuits, represented by the memory 803, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 802 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.
In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of:
receiving a first data stream sent by a first terminal;
identifying whether the first data stream belongs to a data stream under a local shunting label;
and when the first data stream belongs to the data stream under the local shunt label, forwarding the data stream to a preset format conversion server, wherein the format conversion server is connected between the first base station and the local service server.
When executed by the processor, the program can implement all implementation manners in the data offloading method applied to the first base station, and can achieve the same technical effect, and is not described herein again to avoid repetition.
An embodiment of the present invention provides a format conversion server 90 shown in fig. 9, including:
a receiving module 91, configured to receive a first data stream sent by a first base station, where the first data stream is forwarded after the first base station performs local offloading on the first terminal;
a conversion module 92, configured to perform format conversion processing on the first data stream, convert the first data stream into a data stream that can be identified by the local service server, and send the data stream to the local service server.
Optionally, the receiving module 91 is further configured to receive a second data stream, which is sent by the local service server and has a destination address of the first terminal;
the converting module 92 is further configured to perform format conversion processing on the second data stream, convert the second data stream into a data stream that can be identified by the first base station, and send the data stream to the first base station.
Optionally, the converting module 92 is further configured to perform format conversion processing on the first data stream, and includes: converting the first data flow from a GTP-U data flow to an IP service flow; performing format conversion processing on the second data stream includes: and converting the second data flow from the IP service flow to the GTP-U data flow.
Optionally, the conversion module 92 is further configured to receive, after the first terminal is switched from a first base station to a second base station, the first data stream from the first terminal and forwarded by being shunted by the second base station, perform format conversion processing on the first data stream, convert the first data stream into a data stream that can be identified by the local service server, and send the data stream to the local service server; and receiving a second data stream with a destination address of the first terminal sent by the local service server, performing format conversion processing on the second data stream, converting the second data stream into a data stream which can be identified by the second base station, and sending the data stream to the second base station.
Referring to fig. 10, an embodiment of the present invention provides a structural schematic diagram of a format conversion server 1000, including: a processor 1001, a transceiver 1002, a memory 1003, and a bus interface, wherein:
in this embodiment of the present invention, the format conversion server 1000 further includes: a program stored on the memory 1003 and executable on the processor 1001, which when executed by the processor 1001 performs the steps of:
receiving a first data stream sent by a first base station, wherein the first data stream is forwarded after the first base station performs local distribution on the first terminal;
and performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server.
It can be understood that, in the embodiment of the present invention, when being executed by the processor 1001, the computer program can implement each process of the data offloading method embodiment shown in fig. 4, and can achieve the same technical effect, and is not described herein again to avoid repetition.
In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 1001 is responsible for managing a bus architecture and general processes, and the memory 1003 may store data used by the processor 1001 in performing operations.
In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of:
receiving a first data stream sent by a first base station, wherein the first data stream is forwarded after the first base station performs local distribution on the first terminal;
and performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server.
When being executed by the processor, the program can realize all the implementation modes in the data distribution method applied to the format conversion server, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
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 implementation. 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 is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered 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 (17)
1. A data distribution method is applied to a first base station, and is characterized by comprising the following steps:
receiving a first data stream sent by a first terminal;
identifying whether the first data stream belongs to a data stream under a local shunting label;
and when the first data stream belongs to the data stream under the local shunt label, forwarding the data stream to a preset format conversion server, wherein the format conversion server is connected between the first base station and the local service server.
2. The method of claim 1, further comprising:
and receiving a second data stream of which the destination address forwarded by the format forwarding server is the first terminal, and forwarding the second data stream to the first terminal according to the destination address of the second data stream.
3. The method of claim 1, wherein the step of identifying whether the first data flow belongs to a data flow under a local breakout tag comprises one or more of:
identifying whether the first data stream belongs to a data stream under a local shunting label or not according to whether a first time-frequency resource for transmitting the first data stream belongs to a time-frequency resource under the local shunting label or not; or,
identifying whether the first data stream belongs to the data stream under the local shunting label or not according to whether the first slice corresponding to the first data stream is the slice under the local shunting label or not; or,
and identifying whether the first data stream belongs to the data stream under the local distribution label or not according to whether the access label carried by the first data stream belongs to the local distribution label or not.
4. The method of claim 1, wherein prior to the step of receiving the first data stream transmitted by the first terminal, the method further comprises:
when the first terminal accesses the first base station, determining whether a first data stream of the first terminal needs to be locally distributed according to user subscription information of the first terminal, and configuring relevant parameters of the first data stream according to whether the first data stream of the first terminal needs to be locally distributed, wherein the relevant parameters include one or more of the following parameters:
transmitting a first time-frequency resource of the first data stream;
a first slice corresponding to the first data stream;
and the first access label corresponds to the first data flow.
5. The method of claim 1, further comprising:
when the first base station determines to switch a first terminal to a second base station, the first base station sends a switching request aiming at the first terminal to the second base station, and after receiving a switching request confirmation message returned by the second base station, the first base station sends a switching command for switching to the second base station to the first terminal, so that the first data stream is divided to a local service server through the second base station after the first terminal is switched to the second base station;
wherein the second base station is also connected to a local service server through the format forwarding server.
6. The method of claim 1, further comprising:
the first base station sends a reconfiguration message to the first terminal when local offload of a first data flow needs to be cancelled, and reconfigures relevant parameters of the first data flow in a process that the first terminal accesses the first base station again, where the relevant parameters include one or more of the following parameters:
transmitting a second time-frequency resource of the first data stream, wherein the second time-frequency resource does not belong to the time-frequency resource under a local shunt label;
a second slice corresponding to the first data stream, wherein the second slice does not belong to a slice under a local shunting label;
and the second access label corresponding to the first data flow does not belong to the access label under the local shunt label.
7. A data distribution method is applied to a format conversion server, and the format forwarding server is connected between a first base station and a local service server, and is characterized in that the method comprises the following steps:
receiving a first data stream sent by a first base station, wherein the first data stream is forwarded after the first base station performs local distribution on the first terminal;
and performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server.
8. The method of claim 7, further comprising:
receiving a second data stream with a destination address of the first terminal, which is sent by the local service server;
and performing format conversion processing on the second data stream, converting the second data stream into a data stream which can be identified by the first base station, and then sending the data stream to the first base station.
9. The method of claim 8, further comprising:
performing format conversion processing on the first data stream comprises: converting the first data flow from a GTP-U data flow to an IP service flow;
performing format conversion processing on the second data stream includes: and converting the second data flow from the IP service flow to the GTP-U data flow.
10. The method of claim 8, wherein after the first terminal is handed over from a first base station to a second base station, the method further comprising:
receiving the first data stream from the first terminal, which is shunted and forwarded by the second base station, performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server; and the number of the first and second groups,
and receiving a second data stream with a destination address of the first terminal sent by the local service server, performing format conversion processing on the second data stream, converting the second data stream into a data stream which can be identified by the second base station, and sending the data stream to the second base station.
11. A first base station, comprising:
the receiving module is used for receiving a first data stream sent by a first terminal;
the identification module is used for identifying whether the first data stream belongs to the data stream under the local shunting label;
and the shunting module is used for forwarding the data stream to a preset format conversion server when the first data stream belongs to the data stream under the local shunting label, and the format conversion server is connected between the first base station and the local service server.
12. A base station comprising a transceiver and a processor, wherein,
the transceiver is used for receiving a first data stream sent by a first terminal;
the processor is configured to identify whether the first data flow belongs to a data flow under a local breakout tag; and when the first data stream belongs to the data stream under the local shunt label, forwarding the data stream to a preset format conversion server, wherein the format conversion server is connected between the first base station and the local service server.
13. A base station, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the data offloading method of any of claims 1 to 6.
14. A format conversion server, comprising:
a receiving module, configured to receive a first data stream sent by a first base station, where the first data stream is forwarded after the first base station performs local offloading on the first terminal;
and the conversion module is used for performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server.
15. A format conversion server comprising a transceiver and a processor, wherein,
the transceiver is configured to receive a first data stream sent by a first base station, where the first data stream is forwarded after the first base station performs local offloading on the first terminal;
and the processor is used for performing format conversion processing on the first data stream, converting the first data stream into a data stream which can be identified by the local service server, and then sending the data stream to the local service server.
16. A format conversion server, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the data offloading method of any of claims 7 to 10.
17. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the data offloading method according to any one of claims 1 to 10.
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