CN111726823A

CN111726823A - EN-DC link establishment method and device suitable for testing

Info

Publication number: CN111726823A
Application number: CN201910222016.XA
Authority: CN
Inventors: 侯佳音; 罗涵
Original assignee: Datang Linktester Technology Co ltd
Current assignee: Datang Linktester Technology Co ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-09-29
Anticipated expiration: 2039-03-22
Also published as: CN111726823B

Abstract

The invention discloses an EN-DC link establishment method and device suitable for testing, wherein the method comprises the steps that a PC sends a first allocation request to a first protocol stack, so that the first protocol stack generates first TNL information and sends the first TNL information to a second protocol stack; the PC sends a second allocation request to the second protocol stack so that the second protocol stack generates second TNL information and sends the second TNL information to the first protocol stack; and the first protocol stack performs resource configuration according to the first TNL information and the second TNL information, and the second protocol stack performs resource configuration according to the first TNL information and the second TNL information. According to the technical scheme, the X2-AP function is split to the PC, the first protocol stack and the second protocol stack, the problem that the current test script conflicts with the original functions of the 4G base station and the 5G base station is solved, and the EN-DC link is established for realizing the performance test of the UE before leaving a factory.

Description

EN-DC link establishment method and device suitable for testing

Technical Field

The embodiment of the invention relates to the field of communication, in particular to an EN-DC (E-UTRA-NR Dual connectivity ) link establishment method and device suitable for testing.

Background

The EN-DC is a product of 5G NSA (Non-independent) networking, and adopts a dual connection mode of LTE (Long term evolution of universal mobile communication technology) and 5G NR (New Radio). The 4G base station is used as MN (Master Node), the 5G base station is used as SN (Secondary Node), and a 4G core network is used, and the architecture is shown in fig. 1.

As shown in fig. 2, for an architecture diagram of an access network user plane in an EN-DC mode, data streams are separated and combined in a PDCP (Packet data convergence Protocol) layer, and then are received and transmitted through an RLC (Radio link control) layer. When the PDCP and the RLC are located in different base stations, they communicate with each other through a GTP-U (GPRS Tunneling Protocol User Plane). The PDCP located at the MN or the SN can affect the data transceiving path and is interpreted as: when the PDCP layer is positioned at the SN, the NR PDCP transfers data to the E-UTTRAARLC, and when the E-UTRA RLC transfers data to the NR PDCP, the link is E-UTRA RLC → E-UTRA GTP-U → NR GTP-U → NR PDCP; when the PDCP layer is located at MN, the NR PDCP on the E-UTRA side transfers data to the NR RLC, and when the NR RLC transfers data to the NR PDCP on the E-UTRA side → E-UTRA GTP-U → NR GTP-U → NR RLC, the link passed is NR RLC → NR GTP-U → E-UTRA GTP-U → E-UTRA side NR PDCP. Wherein, the link between the E-UTRA GTP-U and the NRGTP-U is an EN-DC link.

Before the UE (User Equipment) leaves the factory, various performance tests need to be performed, and a manufacturer generally uses a test instrument to simulate a mobile communication network in a real environment for communicating with the UE, so as to test the performance of the UE.

The test instrument is composed based on a test script issued by 3GPP (3rd Generation Partnership Project) in combination with a protocol simulator simulating the functions of a base station. The test script released by the 3GPP not only simulates the function of the core network, but also moves part of the access network functions to the script for realization. The main network element of the access network is the base station, so that the test script issued by the current 3GPP conflicts with the function of the base station. In addition, partial access network functions realized by moving to the script relate to establishment of an EN-DC link, namely, the mode of establishing the EN-DC link in the prior base station technology cannot be used in a test instrument and cannot meet the performance test of the UE before leaving a factory.

Disclosure of Invention

The embodiment of the invention provides a system architecture suitable for EN-DC test by splitting the function of X2-AP, which is used for solving the problem that the current 5G test script conflicts with the functions of a 4G base station and a 5G base station. On the basis of the system architecture, an EN-DC link establishment method and device suitable for testing are designed, and the EN-DC link establishment method and device are used for establishing the EN-DC link to meet the performance test of UE before delivery.

The EN-DC link establishment method suitable for testing provided by the embodiment of the invention comprises the following steps:

after acquiring an SN addition request message, generating a first allocation request;

sending the first allocation request to a first protocol stack, so that the first protocol stack generates first TNL (Transport Network Layer) information according to the first allocation request and sends the first TNL information to a second protocol stack; the first allocation request comprises first cell information, user information, bearing information and second cell information;

after acquiring the SN addition request confirmation message, generating a second distribution request;

sending the second allocation request to the second protocol stack, so that the second protocol stack generates second TNL information according to the second allocation request, and performs resource configuration according to the first TNL information and the second TNL information after receiving the first TNL information; and sending the second TNL information to the first protocol stack, so that the first protocol stack performs resource configuration according to the first TNL information and the second TNL information.

In the technical scheme, a Personal Computer (PC) generates a first allocation request and sends the first allocation request to a first protocol stack, and the first protocol stack generates first TNL information according to the first allocation request and sends the first TNL information to a second protocol stack; and the PC generates a second allocation request and sends the second allocation request to the second protocol stack, the second protocol stack generates second TNL information according to the second allocation request and sends the second TNL information to the first protocol stack, the first protocol stack performs resource configuration according to the first TNL information and the second protocol stack performs resource configuration according to the first TNL information and the second TNL information, and therefore an EN-DC link is established for realizing performance test before the UE leaves a factory.

Optionally, after sending the first allocation request to the first protocol stack, the method further includes:

receiving the second cell information sent by the first protocol stack;

determining an IP (Internet Protocol, Protocol for interconnection between networks) address of the second Protocol stack according to the second cell information;

and sending the IP address of the second protocol stack to the first protocol stack, so that the first protocol stack sends the first TNL information to the second protocol stack according to the IP address of the second protocol stack.

In the technical scheme, the PC receives the second cell information sent by the first protocol stack, determines the IP address of the second protocol stack according to the second cell information, and sends the IP address of the second protocol stack to the first protocol stack, so that the problem that the first protocol stack does not know the IP address of the second protocol stack is solved. And the first protocol stack sends the first TNL information to the second protocol stack according to the IP address of the second protocol stack, so that the first protocol stack sends the resource for establishing the EN-DC link to the second protocol stack.

receiving an allocation completion response corresponding to the first allocation request sent by the first protocol stack, and generating the SN addition request acknowledgement message;

after said sending said second allocation request to said second protocol stack, further comprising:

and receiving an allocation completion response corresponding to the second allocation request sent by the second protocol stack.

In the above technical solution, after sending the first allocation request to the first protocol stack, the PC may further receive an allocation completion response corresponding to the first allocation request, generate an SN addition request acknowledgement message, further generate a second allocation request, and after sending the second allocation request to the second protocol stack, may further receive an allocation completion response corresponding to the second allocation request.

Optionally, after receiving an allocation completion response corresponding to the first allocation request sent by the first protocol stack, the method further includes:

generating a Radio Resource Control (RRC) reconfiguration message;

sending the RRC reconfiguration message to UE so that the UE performs RRC connection reconfiguration according to the RRC reconfiguration message;

and receiving an RRC reconfiguration complete message after the UE performs RRC connection reconfiguration.

Optionally, the sending the RRC reconfiguration message to the UE includes:

sending the RRC reconfiguration message to the second protocol stack to cause the second protocol stack to forward the RRC reconfiguration message to the UE;

the receiving of the RRC reconfiguration complete message after the UE performs RRC connection reconfiguration includes:

receiving the RRC reconfiguration complete message sent by the second protocol stack; the RRC reconfiguration complete message is a message generated after the UE performs RRC connection reconfiguration, sent to the second protocol stack, and forwarded by the second protocol stack.

In the above technical solution, after receiving the allocation completion response corresponding to the first allocation request sent by the first protocol stack, the PC may further generate an RRC reconfiguration message, and send the RRC reconfiguration message to the UE for connection reconfiguration of the UE, thereby implementing communication of the UE in the EN-DC link.

Correspondingly, an embodiment of the present invention further provides an EN-DC link establishment method suitable for testing, including:

acquiring a first allocation request; the first allocation request is generated after the PC acquires an SN addition request message;

generating first TNL information according to the first allocation request;

sending the first TNL information to a second protocol stack so that the second protocol stack carries out resource configuration according to the first TNL information and the second TNL information;

receiving the second TNL information; the second TNL information is generated and sent by the second protocol stack according to a second allocation request, and the second allocation request is generated after the PC acquires an SN addition request confirmation message;

and performing resource configuration according to the first TNL information and the second TNL information.

In the above technical solution, the first protocol stack obtains the first allocation request, and generates first TNL information according to the first allocation request, where the first TNL information is resource information allocated by the first protocol stack to the second protocol stack and used for establishing the EN-DC link, the first protocol stack sends the first TNL information to the second protocol stack, and the second protocol stack may perform resource configuration according to the first TNL information and the second TNL information, where the second TNL information is generated by the second protocol stack according to the second allocation request. Further, the first protocol stack may also receive second TNL information sent by the second protocol stack, and perform resource configuration according to the first TNL information and the second TNL information. And after the resource configuration of the first protocol stack and the second protocol stack is completed, the EN-DC link can be established.

Optionally, the first allocation request includes first cell information, user information, and bearer information;

generating first TNL information according to the first allocation request includes:

distributing a first TEID (Tunnel Endpoint Identifier) for the second protocol stack according to the first cell information, the user information and the bearer information;

determining an IP address of a first protocol stack according to the first cell information;

and forming the first TNL information by the first TEID and the IP address of the first protocol stack.

In the above technical solution, the first protocol stack allocates a first TEID for GTP-U transmission to the second protocol stack according to the first cell information, the user information, and the bearer information, and determines an IP address of the first protocol stack, and combines the IP address of the first protocol stack and the first TEID to form first TNL information, so that the second protocol stack can send data to the first protocol stack, that is, the first protocol stack determines resource information required to establish the EN-DC link.

Optionally, the first allocation request includes second cell information;

the sending the first TNL information to a second protocol stack includes:

sending the second cell information to the PC, so that the PC determines the IP address of the second protocol stack according to the second cell information;

receiving an IP address of a second protocol stack sent by the PC;

and sending the first TNL information to the second protocol stack according to the IP address of the second protocol stack.

In the technical scheme, the first protocol stack sends the second cell information to the PC, and the PC determines the IP address of the second protocol stack according to the second cell information and sends the IP address to the first protocol stack, so that the first protocol stack can send the first TNL information to the second protocol stack according to the IP address of the second protocol stack, and the second protocol stack has the first TNL information and the second TNL information.

Optionally, the performing resource configuration according to the first TNL information and the second TNL information includes:

and performing parameter distribution on PDCP according to the first TNL information and the second TNL information.

In the above technical solution, the first protocol stack performs parameter allocation on the PDCP according to the first TNL information and the second TNL information, and the PDCP of the first protocol stack may receive data sent by the RLC of the second protocol stack according to the first TNL information and may send data to the RLC of the second protocol stack according to the second TNL information, thereby completing establishment of the EN-DC link.

Optionally, after the generating the first TNL information according to the first allocation request, the method further includes:

generating an allocation completion response corresponding to the first allocation request;

and sending an allocation completion response corresponding to the first allocation request to the PC, so that the PC generates the SN addition request confirmation message.

In the above technical solution, after the first protocol stack generates the first TNL information, the first protocol stack may feed back an allocation completion response corresponding to the first allocation request to the PC, and after receiving the allocation completion response, the PC generates the SN addition request acknowledgement message and the second allocation request. The allocation complete response sent by the first protocol stack provides a trigger condition for the establishment of the subsequent EN-DC link.

acquiring first TNL information and a second distribution request; the first TNL information is generated and sent by a first protocol stack according to a first allocation request; the first allocation request is generated after the PC acquires an SN addition request message; the second allocation request is generated after the PC acquires an SN addition request confirmation message;

generating second TNL information according to the second allocation request;

sending the second TNL information to the first protocol stack so that the first protocol stack performs resource configuration according to the first TNL information and the second TNL information;

In the above technical solution, after the second protocol stack obtains the second allocation request, the second protocol stack generates second TNL information according to the second allocation request, where the second TNL information is resource information that is allocated to the first protocol stack by the second protocol stack and used for establishing the EN-DC link, the second protocol stack sends the second TNL information to the first protocol stack, the first protocol stack may perform resource configuration according to the first TNL information and the second TNL information, and correspondingly, the second protocol stack may perform resource configuration according to the first TNL information and the second TNL information. And after the resource configuration of the first protocol stack and the second protocol stack is completed, the EN-DC link can be established.

Optionally, the second allocation request includes second cell information, user information, and bearer information;

generating second TNL information according to the second allocation request, including:

distributing a second TEID for the first protocol stack according to the second cell information, the user information and the bearing information;

determining an IP address of a second protocol stack according to the second cell information;

and forming the second TNL information by the second TEID and the IP address of the second protocol stack.

In the above technical solution, the second protocol stack allocates a second TEID for GTP-U transmission to the first protocol stack according to the second cell information, the user information, and the bearer information, and determines an IP address of the second protocol stack, and combines the IP address of the second protocol stack and the second TEID into second TNL information, which is used for the first protocol stack to send data to the second protocol stack, that is, the second protocol stack determines resource information required for establishing the EN-DC link.

Optionally, the first TNL information includes an IP address of the first protocol stack;

the sending the second TNL information to the first protocol stack includes:

and sending the second TNL information to the first protocol stack according to the IP address of the first protocol stack.

In the above technical solution, the second protocol stack may obtain an IP address of the first protocol stack in the first TNL information, and send the second TNL information to the first protocol stack according to the IP address of the first protocol stack, so that the first protocol stack has the first TNL information and the second TNL information.

and performing parameter allocation on the RLC according to the first TNL information and the second TNL information.

In the above technical solution, the second protocol stack performs parameter allocation on the RLC according to the first TNL information and the second TNL information, and the RLC of the second protocol stack may send data to the PDCP of the first protocol stack according to the first TNL information, and may receive data sent by the PDCP of the first protocol stack according to the second TNL information, thereby completing establishment of the EN-DC link.

Optionally, after the generating the second TNL information according to the second allocation request, the method further includes:

generating an allocation completion response corresponding to the second allocation request;

and sending an allocation completion response corresponding to the second allocation request to the PC.

In the above technical solution, after the first protocol stack generates the second TNL information, an allocation completion response corresponding to the second allocation request may be fed back to the PC, and after receiving the allocation completion response, the PC may be configured to determine that the establishment of the EN-DC link is completed.

Correspondingly, an embodiment of the present invention further provides an EN-DC link establishment apparatus suitable for testing, including:

the processing unit is used for generating a first allocation request after acquiring the SN addition request message;

a transceiving unit, configured to send the first allocation request to a first protocol stack, so that the first protocol stack generates first TNL information according to the first allocation request and sends the first TNL information to a second protocol stack; the first allocation request comprises first cell information, user information, bearing information and second cell information;

the processing unit is further configured to generate a second allocation request after acquiring the SN addition request acknowledgement message;

the transceiver unit is further configured to send the second allocation request to the second protocol stack, so that the second protocol stack generates second TNL information according to the second allocation request, and performs resource configuration according to the first TNL information and the second TNL information after receiving the first TNL information; and sending the second TNL information to the first protocol stack, so that the first protocol stack performs resource configuration according to the first TNL information and the second TNL information.

Optionally, the transceiver unit is further configured to:

after the first allocation request is sent to a first protocol stack, receiving the second cell information sent by the first protocol stack;

determining the IP address of the second protocol stack according to the second cell information;

Optionally, the transceiver unit is further configured to:

after the first allocation request is sent to a first protocol stack, receiving an allocation completion response corresponding to the first allocation request sent by the first protocol stack, and generating an SN addition request confirmation message; and after the second allocation request is sent to the second protocol stack, receiving an allocation completion response corresponding to the second allocation request sent by the second protocol stack.

Optionally, the processing unit is further configured to:

after receiving an allocation completion response corresponding to the first allocation request sent by the first protocol stack, generating an RRC reconfiguration message;

controlling the transceiver unit to send the RRC reconfiguration message to the UE so that the UE performs RRC connection reconfiguration according to the RRC reconfiguration message; and receiving an RRC reconfiguration complete message after the UE performs RRC connection reconfiguration.

Optionally, the transceiver unit is specifically configured to:

sending the RRC reconfiguration message to the second protocol stack to cause the second protocol stack to forward the RRC reconfiguration message to the UE; receiving the RRC reconfiguration complete message sent by the second protocol stack; the RRC reconfiguration complete message is a message generated after the UE performs RRC connection reconfiguration, sent to the second protocol stack, and forwarded by the second protocol stack.

a transceiving unit for obtaining a first allocation request; the first allocation request is generated after the PC acquires an SN addition request message;

a processing unit, configured to generate first TNL information according to the first allocation request;

the transceiver unit is further configured to send the first TNL information to a second protocol stack, so that the second protocol stack performs resource configuration according to the first TNL information and the second TNL information;

the transceiver unit is further configured to receive the second TNL information; the second TNL information is generated and sent by the second protocol stack according to a second allocation request, and the second allocation request is generated after the PC acquires an SN addition request confirmation message;

the processing unit is further configured to perform resource configuration according to the first TNL information and the second TNL information.

the processing unit is specifically configured to:

distributing a first TEID for the second protocol stack according to the first cell information, the user information and the bearing information;

Optionally, the first allocation request includes second cell information;

the transceiver unit is specifically configured to:

receiving an IP address of a second protocol stack sent by the PC;

Optionally, the processing unit is specifically configured to:

Optionally, the processing unit is further configured to:

after generating first TNL information according to the first allocation request, generating an allocation completion response corresponding to the first allocation request;

and controlling the transceiver unit to send an allocation completion response corresponding to the first allocation request to the PC, so that the PC generates the SN addition request confirmation message.

a transceiving unit, configured to acquire the first TNL information and the second allocation request; the first TNL information is generated and sent by a first protocol stack according to a first allocation request; the first allocation request is generated after the PC acquires an SN addition request message; the second allocation request is generated after the PC acquires an SN addition request confirmation message;

a processing unit, configured to generate second TNL information according to the second allocation request;

the transceiver unit is further configured to send the second TNL information to the first protocol stack, so that the first protocol stack performs resource configuration according to the first TNL information and the second TNL information;

the processing unit is specifically configured to:

the transceiver unit is specifically configured to:

Optionally, the transceiver unit is specifically configured to:

Optionally, the transceiver unit is further configured to:

after the second TNL information is generated according to the second allocation request, generating an allocation completion response corresponding to the second allocation request;

and controlling the transceiver unit to send an allocation completion response corresponding to the second allocation request to the PC.

Correspondingly, an embodiment of the present invention further provides a computing device, including:

a memory for storing program instructions;

and the processor is used for calling the program instructions stored in the memory and executing the EN-DC link establishment method suitable for the test according to the obtained program.

Accordingly, embodiments of the present invention also provide a computer-readable non-volatile storage medium, which includes computer-readable instructions, and when the computer-readable instructions are read and executed by a computer, the computer is enabled to execute the method for establishing an EN-DC link suitable for testing.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an EN-DC system architecture according to an embodiment of the present invention;

fig. 2 is an architecture diagram of an access network user plane in an EN-DC mode according to an embodiment of the present invention;

FIG. 3 is a system architecture suitable for EN-DC link testing according to an embodiment of the present invention;

FIG. 4 is another system architecture suitable for EN-DC link testing according to an embodiment of the present invention;

fig. 5a is a schematic structural diagram of an X2-U interface according to an embodiment of the present invention;

fig. 5b is a schematic structural diagram of an X2-C interface according to an embodiment of the present invention;

fig. 6 is a schematic flow chart of adding an SN according to an embodiment of the present invention;

FIG. 7 is a schematic flow chart of another example of adding SN according to the present invention;

fig. 8 is a flowchart illustrating an EN-DC link establishment method suitable for testing according to an embodiment of the present invention;

fig. 9 is a schematic flowchart of a specific process for sending the first TNL information according to an embodiment of the present invention;

FIG. 10a is a diagram illustrating a data transceiving approach of PDCP in MN shunting;

FIG. 10b is a diagram illustrating a data transceiving approach of PDCP in SN shunting;

fig. 11 is a flowchart illustrating another method for establishing an EN-DC link suitable for testing according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of an EN-DC link establishing apparatus suitable for testing according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of an EN-DC link establishing apparatus suitable for testing according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of an EN-DC link establishing apparatus suitable for testing according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 3 exemplarily shows a system architecture suitable for EN-DC link testing provided by an embodiment of the present invention, where the system architecture may include a testing device and a UE, and the testing device simulates functions of a core network and an access network to implement testing of the UE.

The testing device can comprise an NR protocol simulator, an LTE protocol simulator and a PC, and the functions of all components are described as follows:

the PC includes a test script and an ADLM (ADapter Layer Master). The Test script is written in TTCN (Testing and Test Control notification) language, and is responsible for overall configuration and Control of the Test case, and mainly simulates functions of RRC and X2-AP (X2-application, X2 application layer) of the core network and the access network. The ADLM is responsible for the management of the protocol simulator and the adaptation and messaging of the TTCN script interface.

The NR protocol simulator mainly implements a function of the 5G base station, and completes simulation of the 5G base station, including a first ADLS (Slave adaptation layer), a first simulator, and a first access network. The first ADLS and the ADLM carry out information interaction and are used for simulating the communication between the 5G base station and the core network; the first ADLS and the second ADLS perform information interaction and are used for simulating communication of the 5G base station and the 4G base station. The first simulator is configured to receive information of the first ADLS and convert the information into information recognizable by the first access network. The first Access network includes L2 layers of the 5G base station, i.e., a PDCP layer, an RLC layer, and a MAC (Media Access Control) layer.

The LTE protocol simulator mainly realizes the function of the 4G base station and completes the simulation of the 4G base station, and comprises a second ADLS, a second simulator and a second access network. The second ADLS and the ADLM carry out information interaction and are used for simulating the communication between the 4G base station and the core network; and the second ADLS carries out information interaction with the first ADLS and is used for simulating the communication of the 4G base station and the 5G base station. The second simulator is configured to receive information of the second ADLS and convert the information into information recognizable by the second access network. The second access network includes L2 layers of the 4G base station, i.e., a PDCP layer, an RLC layer, and a MAC layer.

An embodiment of the present invention provides a specific test architecture suitable for an EN-DC link, as shown in fig. 4, the test architecture includes a test apparatus, and the test apparatus includes three parts: (1) an NR protocol simulator for simulating a first part of the functionality of the NR access network; (2) the LTE protocol simulator is used for simulating the first part of functions of the LTE access network; (3) and the PC is used for simulating the functions of the second part of the NR access network, the functions of the second part of the LTE access network and the functions of the core network. That is to say, the access network functions are divided into a first part of functions and a second part of functions, the first part of functions of the access network are realized on the protocol simulator, the second part of functions of the access network are realized on the PC, and the core network functions are realized on the PC.

The NR protocol simulator simulates the realization of PDCP, RLC and MAC functions on a 5G base station; the LTE protocol simulator simulates the realization of PDCP, RLC and MAC functions on the 4G base station. The communication between the NR protocol simulator and the LTE protocol simulator can realize the process that the NRPDCP transfers data to the E-UTRA RLC or the NR PDCP at the E-UTRA side transfers data to the NR RLC, namely the process is used for simulating the user data transmission of the GTP-U layer.

The PC simulates the second part of functions of the access network and the core network functions by calling the test script, wherein the test script is divided into a 5G part and a 4G part, and the communication between the two parts is used for simulating the signaling transmission of an X2-AP layer, namely the functions of the second part of the NR access network and the functions of the second part of the LTE access network.

In addition, as shown in fig. 4, the testing apparatus further includes an ADL (ADapter Layer) and an SS (system simulator), the ADL includes an ADLM and an ADLs, the PC is provided with the ADLM, the LTE protocol simulator is provided with the ADLs and the SS, and the NR protocol simulator is provided with the ADLs and the SS. The PC calls the TTCN script, the TTCN script forms a code stream and sends the code stream to the ADLM, the ADLM and the ADLS communicate through an IP SOCKET (SOCKET), the ADLM transmits the code stream to the ADLS, and the ADLS sends the code stream to the L2 through the SS. For example, when the testing device transmits information upstream, the information is transmitted through L2 → SS → ADLS → ADLM → TTCN.

The test architecture is further explained with reference to the structures of the X2-U interface and the X2-C interface shown in FIGS. 5a and 5 b. The X2-U interface and the X2-C interface form an X2 interface, where the X2-U interface is a user plane interface, the interface structure is shown in fig. 5a, the X2-C interface is a control plane interface, and the interface structure is shown in fig. 5 b.

To better explain the test architecture provided by the embodiment of the present invention, as shown in fig. 6, a specific flow for adding an SN in an EN-DC link establishment process in practical application is provided, and link resource allocation in the specific flow for adding an SN is completed by an MN and an SN.

601, MN allocates MN EN-DC link resource;

step 602, the MN sends an SN addition request message to the SN;

step 603, SN distributing SN EN-DC link resources;

step 604, SN link resource allocation;

step 605, the SN sends an SN addition request acknowledgement message to the MN;

step 606, MN link resource allocation;

step 607, the SN sends an RRC connection reconfiguration message to the UE;

step 608, the UE performs RRC connection reconfiguration;

step 609, the UE sends an RRC connection reconfiguration complete message to the MN;

in step 610, the MN sends a SN addition complete message to the SN.

And the MN allocates MN EN-DC link resources for the SN and sends the SN addition request message carrying the MN EN-DC link resources to the SN. And after receiving the SN addition request message, the SN allocates SN EN-DC link resources and configures the MN EN-DC link resources and the SN EN-DC link resources. And the SN sends the SN addition confirmation message carrying the SN EN-DC link resource to the MN, the MN receives the SN addition confirmation message and then configures the MN EN-DC link resource and the SN EN-DC link resource, and at the moment, the MN and the SN complete the EN-DC link resource configuration. The MN sends RRC connection reconfiguration information to the UE, the UE conducts RRC connection reconfiguration after receiving the RRC connection reconfiguration information, sends RRC connection reconfiguration completion information to the MN after the reconfiguration is completed, and the MN generates a SN addition completion information to the SN so that the EN-DC link is established and completed, and data communication can be achieved.

In the above embodiments, the X2-AP layer of the MN and the X2-AP layer of the SN are involved, the X2-AP is used to generate X2 signaling (e.g., SN addition request message, SN addition request acknowledgement message) and allocation of EN-DC link resources, and the X2-AP layer of the MN allocates MN EN-DC link resources for the SN and sends the MN EN-DC link resources to the SN; the X2-AP layer of the SN allocates MN EN-DC link resources for the MN and sends the MN. Both the MN and the SN comprise MN EN-DC link resources and SN EN-DC link resources, so that the MN and the SN can carry out resource configuration for establishing the EN-DC link. In the test architecture provided in the embodiment of the present invention, referring to the test architecture shown in fig. 4, the function of X2-AP is split into two parts: (1) the TTCN script trigger message simulates X2 signaling and is used for adding SN (5G base station) to establish a new link, and here, the EN-DC link information is not contained in the X2 signaling; (2) the ADL performs resource allocation and establishment of the EN-DC link.

As shown in fig. 7, a specific flow of adding SNs in the EN-DC link establishment process applicable to the test architecture is provided, and link resource allocation in the specific flow of adding SNs is no longer completed by the MN and the SNs independently.

Step 701, the 4G TTCN sends a SN addition request message to the 5G TTCN;

step 702, the 5G TTCN sends a SN addition request confirmation message to the 4G TTCN;

step 703, the 4G TTCN sends an RRC connection reconfiguration message to the UE;

step 704, the UE performs RRC connection reconfiguration;

step 705, the UE sends an RRC connection reconfiguration complete message to the 4G TTCN;

in step 706, the 4G TTCN sends a SN addition complete message to the 5G TTCN.

In step 701, the 4G TTCN sends a SN addition request message to the 5G TTCN, where the request message does not include a resource allocated by the MN to the SN for establishing the EN-DC link, and in step 702, when the 5G TTCN receives the SN addition request message and sends a SN addition request acknowledgement message to the 4G TTCN, the SN addition request acknowledgement message also does not include a resource allocated by the SN to the MN for establishing the EN-DC link, and at this time, the resource of the EN-DC link is not allocated completely, and the EN-DC link cannot be normally established.

Based on the above description, fig. 8 exemplarily shows a flow of an EN-DC link establishment method suitable for testing according to an embodiment of the present invention, where the flow combines the two split functions of the X2-AP to describe in detail a specific EN-DC link establishment method, where the link establishment method may be performed by an EN-DC link establishment apparatus suitable for testing, and the apparatus may be located in the testing apparatus or the testing apparatus. As shown in fig. 8, the process specifically includes:

in step 801, after acquiring the SN addition request message, the PC generates a first allocation request.

In the embodiment of the invention, a PC sets a 4GTTCN script and a 5GTTCN script, the 4G TTCN of the PC sends an SN addition request message to the 5G TTCN of the PC, and the 5G TTCN of the PC generates a first allocation request after receiving the SN addition request message, wherein the first allocation request comprises first cell information, user information, bearing information and second cell information, the first cell information and the second cell information are respectively cell information corresponding to a first protocol stack and a second protocol stack, and the cell information comprises a cell ID (Identification number).

Step 802, the PC sends the first allocation request to a first protocol stack.

Specifically, the 5G TTCN of the PC sends the first allocation request to the ADLM of the PC and forwards the first allocation request to the ADLS of the first protocol stack through the ADLM of the PC, and after the ADLS of the first protocol stack obtains the first allocation request, the ADLS of the first protocol stack may generate first TNL information according to the first allocation request.

In addition, after sending the first allocation request to the first protocol stack, the PC may also receive an allocation completion response corresponding to the first allocation request sent by the first protocol stack after the first protocol stack completes resource allocation. And after receiving the distribution completion response corresponding to the first distribution request, the 5G TTCN of the PC generates an SN addition request confirmation message and sends the SN addition request confirmation message to the 4G TTCN of the PC. Correspondingly, after receiving the first allocation request, the first protocol stack generates first TNL information, and may generate an allocation completion response corresponding to the first allocation request after generating the first TNL information, and feed back the allocation completion response to the 5G TTCN of the PC, so that the 5G TTCN of the PC generates an SN addition request acknowledgement message.

Step 803, the first protocol stack generates first TNL information according to the first allocation request.

Here, TNL information may be understood as information required for establishing an EN-DC link, the TNL information including an IP address and a TEID required for GTP-U transmission. The first protocol stack generates first TNL information according to the first allocation request, which is equivalent to that the ADLS of the first protocol stack generates an IP address of the first protocol stack according to the first allocation request and allocates a first TEID to the second protocol stack, specifically, the ADLS of the first protocol stack may allocate a first TEID to the second protocol stack according to the first cell information, the user information, and the bearer information in the first allocation request, and the ADLS of the first protocol stack may determine the IP address of the first protocol stack according to the first cell information, and combine the first TEID and the IP address of the first protocol stack into the first TNL information.

For example, the first allocation request may include a first cell ID, a user ID, and a bearer ID, and the ADLS of the first protocol stack allocates the first TEID to the second protocol stack according to the first cell ID, the user ID, and the bearer ID, which may be shown in formula (1).

First TEID cell ID × N₁+ user ID × N₂+ bearer ID × N₃……(1)

Wherein N is₁、N₂、N₃Is a constant set empirically.

And step 804, the first protocol stack sends the first TNL information to the second protocol stack.

After the first protocol stack generates the first TNL information, the first TNL information may be sent to the second protocol stack, so that the second protocol stack performs resource configuration according to the first TNL information and the second TNL information; the second TNL information is generated by the second protocol stack, and a specific generation manner is specifically described in other embodiments, where it is described that the first protocol stack sends the first TNL information to the second protocol stack:

the first protocol stack itself does not know the IP address of the second protocol stack and needs to be acknowledged. The embodiment of the invention provides a mode for determining the IP address of the second protocol stack, and the first protocol stack can acquire the IP address of the second protocol stack from the PC according to the second cell information because the first allocation request also comprises the second cell information. Specifically, the ADLS of the first protocol stack sends the second cell information to the ADLM of the PC, and the ADLM of the PC is responsible for management of all protocol stacks, and when the ADLM of the PC receives the second cell information, the IP address of the second protocol stack can be searched according to the second cell information, and the second cell information is fed back to the ADLS of the first protocol stack, so that the ADLS of the first protocol stack can send the first TNL information to the second protocol stack according to the IP address of the second protocol stack.

An embodiment of the present invention provides a specific process for sending the first TNL information to the second protocol stack by the first protocol stack, which may be shown in fig. 9.

Step 901, the first protocol stack sends the second cell information to the PC;

step 902, the PC determines the IP address of the second protocol stack according to the second cell information;

step 903, the PC sends the IP address of the second protocol stack to the first protocol stack;

step 904, the first protocol stack sends the first TNL information to the second protocol stack.

In other words, the PC may receive the second cell information sent by the first protocol stack, determine an IP address of the second protocol stack according to the second cell information, and send the IP address of the second protocol stack to the first protocol stack, so that the first protocol stack sends the first TNL information to the second protocol stack according to the IP address of the second protocol stack.

In addition, after the first protocol stack generates the first TNL information according to the first allocation request, the first protocol stack may further generate an allocation completion response corresponding to the first allocation request, and send the allocation completion response corresponding to the first allocation request to the PC, so that the PC generates an SN addition request acknowledgement message. Equivalently, the ADLS of the first protocol stack generates an allocation completion response corresponding to the first allocation request and sends the allocation completion response to the 5G TTCN of the PC, and after receiving the allocation completion response corresponding to the first allocation request, the 5G TTCN of the PC generates an SN addition request confirmation message and sends the SN addition request confirmation message to the 4G TTCN of the PC.

In step 805, after acquiring the SN addition request acknowledgement message, the PC generates a second allocation request.

After receiving an allocation completion response corresponding to the first allocation request, the 5G TTCN of the PC generates an SN addition request acknowledgement message and sends the SN addition request acknowledgement message to the 4G TTCN of the PC, and after obtaining the SN addition request acknowledgement message, the 4G TTCN of the PC generates a second allocation request, where the second allocation request includes first cell information, user information, bearer information, and second cell information, the first cell information and the second cell information are cell information corresponding to the first protocol stack and the second protocol stack, respectively, and the cell information includes a cell ID.

Step 806, the PC sends the second allocation request to the second protocol stack.

The 4G TTCN of the PC acquires a second allocation request generated after the SN addition request confirmation message is acquired, and sends the second allocation request to the second protocol stack, so that the second protocol stack generates second TNL information according to the second allocation request, and performs resource configuration according to the first TNL information and the second TNL information after receiving the first TNL information; and sending the second TNL information to the first protocol stack so that the first protocol stack performs resource configuration according to the first TNL information and the second TNL information.

In addition, after sending the second allocation request to the second protocol stack, the PC may further receive an allocation completion response corresponding to the second allocation request sent by the second protocol stack. Specifically, the 4G TTCN of the PC sends the second allocation request to the ADLS of the second protocol stack, and the ADLS of the second protocol stack generates the second TNL information according to the second allocation request, and generates an allocation completion response corresponding to the second allocation request, which is fed back to the 4G TTCN of the PC.

In step 807, the second protocol stack generates second TNL information according to the second allocation request.

As can be seen from the foregoing step 804 and step 806, the second protocol stack may obtain first TNL information sent by the first protocol stack and a second allocation request sent by the PC, where the first TNL information is generated and sent to the second protocol stack after the first protocol stack receives the first allocation request, and the first allocation request is generated after the PC obtains the SN addition request message; the second allocation request is generated by the PC after acquiring the SN addition request acknowledge message. The embodiment of the present invention provides an implementation manner in which the second protocol stack generates the second TNL information according to the second allocation request after acquiring the second allocation request, and specifically, the second protocol stack allocates the second TEID to the first protocol stack according to the second cell information, the user information, and the bearer information, and determines the IP address of the second protocol stack according to the second cell information, and combines the second TEID and the IP address of the second protocol stack into the second TNL information.

Optionally, after the second protocol stack generates the second TNL information according to the second allocation request, the second protocol stack may further generate an allocation completion response corresponding to the second allocation request, and send the allocation completion response corresponding to the second allocation request to the PC. Equivalently, the ADLS of the second protocol stack generates an allocation complete response corresponding to the second allocation request, and sends the allocation complete response to the 4G TTCN of the PC.

Step 808, the second protocol stack sends the second TNL information to the first protocol stack.

The first TNL information received by the second protocol stack comprises the first TEID and the IP address of the first protocol stack, so that when the first TNL information is acquired by the second protocol stack, the IP address of the first protocol stack can be determined, the second TNL information is sent to the first protocol stack according to the IP address of the first protocol stack, and after the first protocol stack receives the second TNL information, resource configuration can be carried out according to the second TNL information and the first TNL information.

Step 809, the second protocol stack performs resource configuration according to the first TNL information and the second TNL information.

Specifically, the second protocol stack performs parameter allocation on the RLC according to the first TNL information and the second TNL information. It is understood that the ADLS of the second protocol stack allocates the first TNL information, the second TNL information to the RLC.

Step 810, the first protocol stack performs resource configuration according to the first TNL information and the second TNL information.

Specifically, the first protocol stack performs parameter allocation on the PDCP according to the first TNL information and the second TNL information, which is to be understood that the ADLS of the first protocol stack allocates the first TNL information and the second TNL information to the PDCP.

Performing resource allocation for the ADL in conjunction with the EN-DC link architecture is explained as follows, the PDCP may be located at the MN (4G base station) or the SN (5G base station), and the PDCP may affect the data offloading path when located at the MN or the SN. The PDCP entity is located in the data transceiving paths of the MN offload and the SN offload, as shown in fig. 10a and 10b, where the dotted line represents the control plane data transceiving path and the solid line represents the user plane data transceiving path. When the PDCP is located in the MN breakout, because the 5G NR bandwidth is large, the MN needs to have stronger processing and buffering capabilities, and in order to avoid the bottleneck of the processing capability of the MN, the E-UTRA PDCP needs to be upgraded to the NR PDCP, that is, the NRPDCP on the E-UTRA side, at this time, the upgrade of the E-UTRA PDCP version increases the device development and networking cost, but the upgraded processing capability is the same as the processing capability of the PDCP on the SN breakout, so in the embodiment of the present invention, the PDCP is preferably located in the SN breakout, specifically, when the NR PDCP transfers data to the E-UTRA RLC, the link passed through is NR → NR GTP-U → E-UTRA RLC, at this time, the first protocol stack is an NR protocol stack, the second protocol stack is an LTE protocol stack, and the first TNL information generated by the ADLS of the NR protocol stack is UL TNL (UpLink TNL ), and the second TNL information generated by ADLS of the LTE protocol stack is DL TNL (DownLink TNL), the NR protocol stack configures the UL TNL and the DL TNL to PDCP, and the LTE protocol stack configures the UL TNL and the DL TNL to RLC.

Although the PDCP is located in the SN offload, which is a preferred embodiment of the present invention, the PDCP is located in the MN offload, and belongs to the protection scope of the present invention, when the NR PDCP at the E-UTRA side transfers data to the NR RLC, the passed link is the NRPDCP → E-UTRA GTP-U → NR RLC, at this time, the first protocol stack is an NR protocol stack, the second protocol stack is an LTE protocol stack, the first TNL information generated by the ADLS of the NR protocol stack is DL TNL, the second TNL information generated by the ADLS of the LTE protocol stack is UL TNL, the NR protocol stack configures UL TNL and DL TNL to the RLC, and the LTE protocol stack configures UL TNL and DL TNL to the PDCP.

Optionally, after receiving the allocation completion response corresponding to the first allocation request sent by the first protocol stack, the PC generates an RRC reconfiguration message, and sends the RRC reconfiguration message to the UE, so that the UE performs RRC connection reconfiguration according to the RRC reconfiguration message. Specifically, after receiving an allocation completion response corresponding to a first allocation request sent by the ADLS of the first protocol stack, the 5G TTCN of the PC generates a SN addition request acknowledgement message and sends the SN addition request acknowledgement message to the 4G TTCN of the PC, the 4G TTCN of the PC generates an RRC reconfiguration message and sends the RRC reconfiguration message to the UE, the UE performs RRC connection reconfiguration and generates an RRC reconfiguration completion message after receiving the RRC reconfiguration message, and feeds the RRC reconfiguration completion message back to the 4G TTCN of the PC, and the 4G TTCN of the PC generates an SN addition completion message and sends the SN addition completion message to the 5G TTCN.

Here, when the 4G TTCN of the PC sends the RRC reconfiguration message to the UE, the RRC reconfiguration message may be sent to the ADLS of the second protocol stack first, so that the ADLS of the second protocol stack forwards the RRC reconfiguration message to the UE. Correspondingly, when receiving the RRC reconfiguration complete message fed back by the UE, the 4G TTCN of the PC may first pass through the ADLS of the second protocol stack, that is, after the UE generates the RRC reconfiguration complete message, the complete message is sent to the ADLS of the second protocol stack, and the ADLS of the second protocol stack forwards the complete message to the 4G TTCN of the PC.

For better explaining the embodiment of the present invention, the procedure of establishing the EN-DC link suitable for the test will be described below under a specific test device, as shown in fig. 11, the test device includes a PC, an NR protocol stack, an LTE protocol stack and a UE, wherein the PC includes an ADLM, a 4GTTCN and a 5GTTCN, the NR protocol stack includes an ADLS layer and a PDCP/RLC/MAC layer, and the NR protocol stack includes an ADLS layer and a PDCP/RLC/MAC layer. The specific flow of the EN-DC link establishment is as follows:

step 1101, the 4G TTCN sends a SN addition request message to the 5G TTCN;

step 1102, the 5G TTCN sends a 5G resource allocation request to the ADLS of the NR protocol stack;

step 1103, the ADLS of the NR protocol stack generates EN-DC UL TNL;

step 1104, the ADLS of the NR protocol stack sends EN-DC UL TNL to the ADLS of the LTE protocol stack;

step 1105, the ADLS of the NR protocol stack sends a 5G resource allocation complete response to the 5G TTCN;

step 1106, the 5G TTCN sends a SN addition request acknowledge message to the 4G TTCN;

step 1107, the 4G TTCN sends an RRC reconfiguration message to the UE;

step 1108, the 4G TTCN sends a 4G resource allocation request to the ADLS of the LTE protocol stack;

step 1109, ADLS of the LTE protocol stack generates EN-DC DL TNL;

step 1110, configuring the EN-DC TNL to the RLC by the ADLS of the LTE protocol stack;

step 1111, the ADLS of the LTE protocol stack sends EN-DC DLTNL to the ADLS of the NR protocol stack;

step 1112, the ADLS of the NR protocol stack configures the EN-DC TNL to the PDCP;

step 1113, ADLS of LTE protocol stack sends 4G resource allocation completion response to 4G TTCN;

step 1114, the UE sends an RRC reconfiguration complete message to the 4G TTCN;

step 1115, the 4G TTCN sends a SN addition request complete message to the 5 GTTCN.

In the above embodiment, the allocation and transfer of EN-DC UL TNL and the allocation and transfer of EN-DC DL TNL may be divided, and after the 4G TTCN sends the SN Addition Request message (SgNB Addition Request) to the 5G TTCN, the allocation and transfer of EN-DC UL TNL is performed, specifically, the 5G TTCN generates the 5G resource allocation Request, and forwards the Request to the ADLS of the NR protocol stack through the ADLM, and the ADLS of the NR protocol stack allocates the EN-DC UL TEID and determines the NR ADLS IP (IP address of the ADLS of the NR protocol stack), and the EN-DC UL TEID and the NR ADLS IP form the EN-DC UL TNL. And generating an EN-DCUL TNL by ADLS of the NR protocol stack, sending the EN-DCUL TNL to ADLS of the LTE protocol stack, storing the EN-DCUL TNL after the ADLS of the LTE protocol stack receives the EN-DCUL TNL, generating a 5G resource allocation completion response by the ADLS of the NR protocol stack, and forwarding the response to a 5G TTCN through the ADLM, wherein the distribution and the transmission of the EN-DC UL TNL are completed. After receiving the 5G resource allocation completion response, the 5G TTCN generates a SN addition Request acknowledgement message (SgNBAddition Request acknowledgement) to be sent to the 4G TTCN, and the 4G TTCN sends an RRC reconfiguration message (RRCConnectionReconfiguration) to the UE, and then performs allocation and transfer of EN-DC DL TNL, specifically, the 4G TTCN generates a 4G resource allocation Request to be sent to an ADLS of the LTE protocol stack, and the ADLS of the LTE protocol stack allocates an EN-DC DL TEID and determines LTE ADLS IP (IP address of the ADLS of the LTE protocol stack), and sends the EN-DC DL TEID, LTE ADLS IP sets of EN-DCDL TNLs, and to the ADLS of the NR protocol stack, where the allocation and transfer of the EN-DC DL TNL are completed. After completing the allocation and transfer of EN-DC UL TNL and the allocation and transfer of EN-DC DL TNL, ADLS of the LTE protocol stack allocates EN-DC TNL (EN-DC DL TNL, EN-DC UL TNL) to RLC, and ADLS of the NR protocol stack allocates EN-DC TNL (EN-DC DL TNL, EN-DC UL TNL) to PDCP. In addition, after the UE completes RRC connection reconfiguration, the UE sends an RRC reconfiguration Complete message (rrcconnectionreconfiguration Complete) to the 4G TTCN, and the 4G TTCN generates an SN addition confirmation message (SgNBReconfiguration Complete) and sends the SN addition confirmation message (SgNBReconfiguration Complete) to the 5G TTCN, at this time, the establishment of the EN-DC link is completed, and the communication of the EN-DC link can be performed.

In the above embodiment, the PC generates the first allocation request and sends the first allocation request to the first protocol stack, and the first protocol stack generates the first TNL information according to the first allocation request and sends the first TNL information to the second protocol stack; and the PC generates a second allocation request and sends the second allocation request to the second protocol stack, the second protocol stack generates second TNL information according to the second allocation request and sends the second TNL information to the first protocol stack, the first protocol stack performs resource configuration according to the first TNL information and the second protocol stack performs resource configuration according to the first TNL information and the second TNL information, and therefore an EN-DC link is established for realizing performance test before the UE leaves a factory.

Based on the same inventive concept, fig. 12 exemplarily shows a structure of an EN-DC link establishment apparatus suitable for testing, which may perform a flow of an EN-DC link establishment method suitable for testing according to an embodiment of the present invention.

The processing unit 1201 is configured to generate a first allocation request after acquiring the SN addition request message;

a transceiver unit 1202, configured to send the first allocation request to a first protocol stack, so that the first protocol stack generates first TNL information according to the first allocation request and sends the first TNL information to a second protocol stack; the first allocation request comprises first cell information, user information, bearing information and second cell information;

the processing unit 1201 is further configured to generate a second allocation request after acquiring the SN addition request acknowledgement message;

the transceiver unit 1202 is further configured to send the second allocation request to the second protocol stack, so that the second protocol stack generates second TNL information according to the second allocation request, and performs resource configuration according to the first TNL information and the second TNL information after receiving the first TNL information; and sending the second TNL information to the first protocol stack, so that the first protocol stack performs resource configuration according to the first TNL information and the second TNL information.

Optionally, the transceiver 1202 is further configured to:

after the first allocation request is sent to a first protocol stack, receiving an allocation completion response corresponding to the first allocation request sent by the first protocol stack, and generating an SN addition request confirmation message; and after the second allocation request is sent to a second protocol stack, receiving an allocation completion response corresponding to the second allocation request sent by the second protocol stack.

Optionally, the processing unit 1201 is further configured to:

controlling the transceiver unit 1202 to send the RRC reconfiguration message to the UE, so that the UE performs RRC connection reconfiguration according to the RRC reconfiguration message; and receiving an RRC reconfiguration complete message after the UE performs RRC connection reconfiguration.

Optionally, the transceiver unit 1202 is specifically configured to:

Based on the same inventive concept, fig. 13 exemplarily shows a structure of an EN-DC link establishment apparatus suitable for testing, which may perform a flow of an EN-DC link establishment method suitable for testing according to an embodiment of the present invention.

A transceiving unit 1301, configured to obtain a first allocation request; the first allocation request is generated after the PC acquires an SN addition request message;

a processing unit 1302, configured to generate first TNL information according to the first allocation request;

the transceiver unit 1301 is further configured to send the first TNL information to a second protocol stack, so that the second protocol stack performs resource configuration according to the first TNL information and the second TNL information;

the transceiver unit 1301 is further configured to receive the second TNL information; the second TNL information is generated and sent by the second protocol stack according to a second allocation request, and the second allocation request is generated after the PC acquires an SN addition request confirmation message;

the processing unit 1302 is further configured to perform resource configuration according to the first TNL information and the second TNL information.

the processing unit 1302 is specifically configured to:

Optionally, the first allocation request includes second cell information;

the transceiving unit 1301 is specifically configured to:

receiving an IP address of a second protocol stack sent by the PC;

Optionally, the processing unit 1302 is specifically configured to:

Optionally, the processing unit 1302 is further configured to:

the transceiver 1301 is controlled to send an allocation completion response corresponding to the first allocation request to the PC, so that the PC generates the SN addition request acknowledgement message.

Based on the same inventive concept, fig. 14 exemplarily shows a structure of an EN-DC link establishment apparatus suitable for testing, which may perform a flow of an EN-DC link establishment method suitable for testing according to an embodiment of the present invention.

A transceiving unit 1401, configured to acquire the first TNL information and the second allocation request; the first TNL information is generated and sent by a first protocol stack according to a first allocation request; the first allocation request is generated after the PC acquires an SN addition request message; the second allocation request is generated after the PC acquires an SN addition request confirmation message;

a processing unit 1402, configured to generate second TNL information according to the second allocation request;

the transceiver unit 1401 is further configured to send the second TNL information to the first protocol stack, so that the first protocol stack performs resource configuration according to the first TNL information and the second TNL information;

the processing unit 1402 is further configured to perform resource configuration according to the first TNL information and the second TNL information.

the processing unit 1402 is specifically configured to:

the transceiving unit 1401 is specifically configured to:

Optionally, the transceiver unit 1401 is specifically configured to:

Optionally, the transceiving unit 1401 is further configured to:

control the transceiving unit 1401 to transmit an allocation completion response corresponding to the second allocation request to the PC.

Based on the same inventive concept, an embodiment of the present invention further provides a computing device, including:

a memory for storing program instructions;

Based on the same inventive concept, the embodiment of the present invention also provides a computer-readable non-volatile storage medium, which includes computer-readable instructions, and when the computer-readable instructions are read and executed by a computer, the computer is enabled to execute the method for establishing the EN-DC link suitable for the test.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An EN-DC link establishment method suitable for testing, comprising:

after acquiring a slave station SN addition request message, generating a first allocation request;

sending the first allocation request to a first protocol stack so that the first protocol stack generates first Transport Network Layer (TNL) information according to the first allocation request and sends the TNL information to a second protocol stack; the first allocation request comprises first cell information, user information, bearing information and second cell information;

2. The method of claim 1, wherein after said sending the first allocation request to the first protocol stack, further comprising:

receiving the second cell information sent by the first protocol stack;

determining a protocol IP address interconnected between networks of the second protocol stack according to the second cell information;

3. The method of claim 1, wherein after said sending the first allocation request to the first protocol stack, further comprising:

4. The method of claim 3, wherein after said receiving an allocation completion response corresponding to the first allocation request sent by the first protocol stack, further comprising:

generating a Radio Resource Control (RRC) reconfiguration message;

sending the RRC reconfiguration message to User Equipment (UE) so that the UE performs RRC connection reconfiguration according to the RRC reconfiguration message;

5. The method of claim 4, wherein the sending the RRC reconfiguration message to the UE comprises:

6. An EN-DC link establishment method suitable for testing, comprising:

acquiring a first allocation request; the first allocation request is generated after the computer PC acquires an adding request message of the slave station SN;

generating first Transport Network Layer (TNL) information according to the first allocation request;

7. The method of claim 6, wherein the first allocation request comprises first cell information, user information, bearer information;

distributing a first Tunnel Endpoint Identifier (TEID) for the second protocol stack according to the first cell information, the user information and the bearing information;

determining a protocol IP address interconnected among networks of a first protocol stack according to the first cell information;

8. The method of claim 6, wherein the first allocation request includes second cell information;

the sending the first TNL information to a second protocol stack includes:

receiving an IP address of a second protocol stack sent by the PC;

9. The method of claim 6, wherein the configuring resources according to the first TNL information and the second TNL information comprises:

and performing parameter distribution on the packet data convergence protocol PDCP according to the first TNL information and the second TNL information.

10. The method of claim 6, further comprising, after the generating first TNL information according to the first allocation request:

11. An EN-DC link establishment method suitable for testing, comprising:

acquiring TNL information of a first transport network layer and a second distribution request; the first TNL information is generated and sent by a first protocol stack according to a first allocation request; the first allocation request is generated after the computer PC acquires an adding request message of the slave station SN; the second allocation request is generated after the PC acquires an SN addition request confirmation message;

generating second TNL information according to the second allocation request;

12. The method of claim 11, wherein the second allocation request includes second cell information, user information, bearer information;

distributing a second Tunnel Endpoint Identifier (TEID) for the first protocol stack according to the second cell information, the user information and the bearing information;

determining the interconnected protocol IP address between the networks of the second protocol stack according to the second cell information;

13. The method of claim 11, wherein the first TNL information comprises an IP address of the first protocol stack;

the sending the second TNL information to the first protocol stack includes:

14. The method of claim 11, wherein the configuring resources according to the first TNL information and the second TNL information comprises:

and performing parameter allocation on Radio Link Control (RLC) according to the first TNL information and the second TNL information.

15. The method of claim 11, further comprising, after said generating second TNL information according to the second allocation request:

16. An EN-DC link establishment apparatus adapted for testing, comprising:

the processing unit is used for generating a first allocation request after acquiring the adding request message of the SN of the slave station;

a transceiving unit, configured to send the first allocation request to a first protocol stack, so that the first protocol stack generates first transport network layer TNL information according to the first allocation request and sends the first transport network layer TNL information to a second protocol stack; the first allocation request comprises first cell information, user information, bearing information and second cell information;

17. An EN-DC link establishment apparatus adapted for testing, comprising:

a transceiving unit for obtaining a first allocation request; the first allocation request is generated after the computer PC acquires an adding request message of the slave station SN;

a processing unit, configured to generate first transport network layer TNL information according to the first allocation request;

18. An EN-DC link establishment apparatus adapted for testing, comprising:

a transceiving unit, configured to acquire first transport network layer TNL information and a second allocation request; the first TNL information is generated and sent by a first protocol stack according to a first allocation request; the first allocation request is generated after the computer PC acquires an adding request message of the slave station SN; the second allocation request is generated after the PC acquires an SN addition request confirmation message;

19. A computing device, comprising: a memory for storing program instructions;

a processor for calling program instructions stored in said memory to perform the method of any of claims 1 to 15 in accordance with the obtained program.

20. A computer readable non-transitory storage medium including computer readable instructions which, when read and executed by a computer, cause the computer to perform the method of any one of claims 1 to 15.