CN114258030A - Dynamic spectrum sharing test method and system - Google Patents

Dynamic spectrum sharing test method and system Download PDF

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Publication number
CN114258030A
CN114258030A CN202111503263.0A CN202111503263A CN114258030A CN 114258030 A CN114258030 A CN 114258030A CN 202111503263 A CN202111503263 A CN 202111503263A CN 114258030 A CN114258030 A CN 114258030A
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CN
China
Prior art keywords
test terminal
target cell
test
mobile communication
communication standard
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Pending
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CN202111503263.0A
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Chinese (zh)
Inventor
李卫
李永振
王倩
王雪颖
王雨斐
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Beijing Taide Dongteng Communication Technology Co ltd
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Beijing Taide Dongteng Communication Technology Co ltd
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Priority to CN202111503263.0A priority Critical patent/CN114258030A/en
Publication of CN114258030A publication Critical patent/CN114258030A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/06—Testing, supervising or monitoring using simulated traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a test method and a test system for dynamic spectrum sharing, wherein the test method comprises the steps of detecting whether a test terminal sends an RRC (radio resource control) setting request message to a target cell or not after a host computer controls the test terminal to be powered on and started, ensuring that the test terminal is successfully registered to the target cell, controlling the test terminal to establish session connection with a test server, and detecting whether the test terminal can normally send and receive related data in the target cell or not. The test terminal is configured to support the functions of a fifth generation mobile communication standard 5G and a fourth generation mobile communication standard 4G, and after the MBSFN function is started for the fourth generation mobile communication standard 4G cell, the target cell configures the cell transmitted on the fourth generation mobile communication standard 4G frequency spectrum in a related manner for the fifth generation mobile communication standard 5G cell. By the method, the terminal can be subjected to related tests in the dynamic spectrum sharing system.

Description

Dynamic spectrum sharing test method and system
Technical Field
The invention relates to the technical field of communication, in particular to a test method and a test system for dynamic spectrum sharing.
Background
Fifth generation mobile communication standard (5G), also known as fifth generation mobile communication technology. It is an extension of the fourth generation mobile communication standard (4G). The 5G has high speed, low time delay and multi-connection capacity, and can provide flexible system design to meet the diversified requirements of the Internet of things.
In the present phase, the 5G network deployment and construction is mainly focused on the frequency range of 3.5GHz, however, most frequency bands of the frequency band are occupied by a 4G LTE (Long Term Evolution) network. In order to fully utilize the spectrum of the 4G network, a dynamic spectrum sharing technique is proposed. The dynamic spectrum sharing technology can flexibly realize the mutual conversion of the spectrums between the 4G network and the 5G network, further realize the coexistence of the 4G network and the 5G network, is also beneficial to an operator to realize the stable transition from the 4G network to the 5G network, does not need spectrum reconstruction and reduces the cost.
Currently, there is no method for testing terminals in a dynamic spectrum sharing system.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and a system for testing dynamic spectrum sharing, which can perform a relevant test on a terminal in a dynamic spectrum sharing system.
In a first aspect, an embodiment of the present invention provides a test method for dynamic spectrum sharing, where the test method includes:
the host computer controls the test terminal to be powered on and started up, wherein the test terminal is configured to support the functions of a fifth generation mobile communication standard 5G and a fourth generation mobile communication standard 4G;
the host computer detects whether the test terminal sends an RRC setting request message to a target cell or not and ensures that the test terminal is successfully registered to the target cell; after the MBSFN function is started for the fourth generation mobile communication standard 4G cell, the target cell is a cell which is transmitted on the fourth generation mobile communication standard 4G frequency spectrum by the related configuration of the fifth generation mobile communication standard 5G cell;
the host computer controls the test terminal to establish session connection with the test server;
the host computer detects whether the test terminal can normally send and receive related data in the target cell.
In a second aspect, an embodiment of the present invention provides a dynamic spectrum sharing system, where the system includes:
testing the terminal;
a system simulator; and
a host computer connected to the terminal to be tested and the system simulator and adapted to perform the method of any of the first aspect.
In the dynamic spectrum sharing test method of the embodiment of the invention, after the host computer controls the test terminal to be powered on and started up, whether the test terminal sends an RRC (radio resource control) setting request message to a target cell is detected, the test terminal is ensured to be successfully registered to the target cell, then the test terminal is controlled to establish session connection with a test server, and whether the test terminal can normally send and receive related data in the target cell is detected. The test terminal is configured to support the functions of a fifth generation mobile communication standard 5G and a fourth generation mobile communication standard 4G, and after the MBSFN function is started for the fourth generation mobile communication standard 4G cell, the target cell configures the cell transmitted on the fourth generation mobile communication standard 4G frequency spectrum in a related manner for the fifth generation mobile communication standard 5G cell. By the method, the terminal can be subjected to related tests in the dynamic spectrum sharing system.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a test system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a dynamic spectrum sharing system model according to an embodiment of the present invention;
FIG. 3 is a flow chart of a testing method according to an embodiment of the present invention;
FIG. 4 is a flowchart of another testing method according to an embodiment of the present invention.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The following explains the English abbreviation, English full name and Chinese explanation of the professional terms related to the embodiment of the invention:
LTE (Long Term Evolution);
RRC (Radio Resource Control);
MBSFN (multicast Broadcast multicast service Single frequency Network, multicast/multicast Single frequency Network);
NAS (Non-Access-Stratum, Non Access Stratum);
ROHC (Robust Header Compression);
PDCP (Packet Data Convergence Protocol);
CRS (Cell Reference Signal);
MIMO (multiple input multiple output);
PTC (ParallelTest Component);
SRB (signaling radio bearer);
QoS (Quality of Service);
RLC (Radio Link Control);
CCCH (Common Control Channel);
SDAP (Service Data attachment Protocol);
MAC (Medium Access Control);
AM (Acknowledged Mode);
TM (Transparent Mode);
UM (Unacknowledged Mode);
PHY (Physical);
normal Mode (Normal Mode);
DTCH (Dedicated Traffic Channel);
DCCH (Dedicated Control Channel);
DRB (data radio bearer);
PDU (Protocol Data Unit);
cryptography (encryption algorithm);
integrity (Integrity verification);
SS (System Simulator);
UE (User Equipment, terminal to be tested);
TTCN (Testing and Test Control Notification, Test and Test Control expression).
The 5G equipment can access the network after correctly detecting the synchronous signal, in order to keep synchronization in time and frequency, the synchronous signal needs to be periodically transmitted in a specific network resource block, and if the 5G synchronous signal is to be transmitted on a frequency channel occupied by 4G, a transmission interval needs to be defined to ensure that the synchronous signal and the 5G synchronous signal are not influenced mutually. Therefore, in the dynamic spectrum sharing technology of this embodiment, the 4G Network needs to use an MBSFN (multicast/multicast Single Frequency Network) technology. By configuring six of the ten subframes of the 4G LTE radio frame as MBSFN subframes, or in order to reduce the impact on the 4G network, only one subframe #1 may be configured as MBSFN subframe. Since the dynamic spectrum sharing technique is intended to provide coverage of the 5G network, and to reduce the impact on the 4G network, the 5G network in the present embodiment may use a subcarrier spacing of 15 Khz.
Meanwhile, for subframes which are not configured as MBSFN, an LTE CRS rate matching technique may be adopted to maintain and transmit CRS mapped on the subframe by 4G according to a MIMO (multiple input multiple output) mode, and the LTE CRS rate matching technique may distinguish whether the CRS is a 4G signal or a 5G signal.
FIG. 1 is a diagram of a test system according to an embodiment of the present invention. As shown in fig. 1, the test system includes a Host computer Host-PC, a system simulator ss (system simulator), and a terminal ue (user equipment) to be tested.
The Host computer Host-PC bears TTCN3 codes, generates compiling codes required by the operation of TTCN-3 and is used for controlling the system simulator SS and the terminal UE to be tested to execute the test flow.
The system simulator SS is used to simulate a dynamic spectrum sharing system model. The dynamic spectrum sharing system model in this embodiment includes dual protocol stacks, and each protocol stack is used for a 4G network and a 5G network. Further, the system simulator SS is configured to simulate an SDAP (Service Data Adaptation Protocol) Layer, a PDCP (Packet Data Convergence Protocol) Layer, an RLC (Radio Link Control) Layer, an MAC (Media Access Control) Layer, a Physical Layer (PHY), a Radio frequency part, and a PDCP Layer, an RLC Layer, an MAC Layer, a Physical Layer, and a Radio frequency part of a 4G network side in the dynamic spectrum sharing system model. Further, the system simulator SS is connected with the terminal UE to be tested through radio frequency.
Therefore, a dynamic spectrum sharing system model is built through the Host computer Host-PC control system simulator SS and the terminal UE to be tested, and signaling based on 4G and 5G is sent and received by a simulation network side in the built dynamic spectrum sharing system model, so that the terminal can be tested in the dynamic spectrum sharing system.
In this embodiment, before the test, a test mode needs to be set, and the system simulator and the test terminal need to be configured to construct a dynamic spectrum sharing system model.
Specifically, fig. 2 is a schematic diagram of a dynamic spectrum sharing system model according to an embodiment of the present invention. The dynamic spectrum sharing system model includes a dual protocol stack. The protocol stacks are respectively used for a 4G network and a 5G network. And the 4G network and the 5G network respectively implement the functions of the test components in parallel through the TTCN.
The PHY layer, the MAC layer, the RLC layer, the PDCP layer and the SDAP layer of the 5G network side are configured to be in a standard mode, and the function of a complete protocol stack is completed. The SRB0 uplink and downlink ports are located above the RLC layer. SRB1 and SRB2 ports are located on both sides of the concurrent test RRC and NAS layer modules. The DRB port is located above the SDAP layer. The PDCP and NAS layers enable ciphering and integrity protection.
The RRC/NAS layer emulators (RRC/NAS emulators) of SRB1 and SRB2 provide ciphering and integrity protection functions for NAS messages. In the uplink direction, the system simulator SS reports RRC messages containing secure and encoded NAS messages to the RRC port. In the downlink direction, the RRC and NAS messages will be embedded in one PDU with the same timing information message after the ciphering and integrity protection of the NAS message is completed.
The PHY layer, the MAC layer, the RLC layer and the PDCP layer of the 4G network side are configured to be in standard configuration, and the function of a complete protocol stack is completed. The SRB0 uplink and downlink ports are located in the RLC layer. The SRB1 and SRB2 ports are above/below the RRC and NAS simulators and can implement concurrent testing as one component. The DRB port is above the PDCP layer and starts the encryption and integrity protection functions of the PDCP layer. The NAS layer opens ciphering and integrity protection functions.
The RRC/NAS emulator provides the functions of ciphering and integrity protection of NAS messages for SRB1 and SRB 2. In the upstream direction, the system simulator SS reports RRC messages including security protection and encoded NAS messages to the RRC port. In the downlink direction, the RRC and NAS messages will be embedded in one PDU with the same timing information message after the ciphering and integrity protection of the NAS message is completed.
The UE side of the terminal to be tested is configured to be in a Normal Mode (Normal Mode), the PDCP/NAS layer is configured with a ciphering algorithm and integrity protection, and the ROHC function is not configured.
FIG. 3 is a flowchart of a testing method according to an embodiment of the present invention. As shown in fig. 3, the testing method specifically includes the following steps:
s100, the host computer controls the test terminal to be powered on and started.
Wherein the test terminal is configured to support fifth generation and fourth generation mobile communication standard 5G and 4G functions. Specifically, after the dynamic spectrum sharing system model as shown in fig. 2 is constructed, subsequent tests may be performed based on the dynamic spectrum sharing system model. In step S100, the test terminal UE is controlled by the host computer to power on and power on.
S200, the host computer detects whether the test terminal sends an RRC setting request message to a target cell, and ensures that the test terminal is successfully registered to the target cell.
And after the MBSFN function is started for the fourth generation mobile communication standard 4G cell, the target cell is a cell which is transmitted on the fourth generation mobile communication standard 4G frequency spectrum by the related configuration of the fifth generation mobile communication standard 5G cell. Specifically, after the test terminal UE is controlled by the host computer to power on, it is detected whether the test terminal sends an RRC setting request message to a target cell, and it is ensured that the test terminal successfully registers to the target cell.
Further, in step S200, when it is detected that the test terminal sends an RRC setup request message to the target cell, it is determined that the test terminal can be correctly and successfully registered in the target cell.
Further, in step S200, when it is detected that the test terminal does not send the RRC setup request message to the target cell, it is determined that the test terminal cannot be correctly and successfully registered to the target cell.
S300, the host computer controls the test terminal to establish session connection with the test server.
Specifically, after the test terminal is successfully registered to the target cell, the host computer controls the test terminal to establish session connection with the test server.
S400, the host computer detects whether the test terminal can normally send and receive related data in the target cell.
Specifically, after the test terminal establishes a session connection with the test server, the host computer detects whether the test terminal can normally send and receive related data in the target cell.
Further, in step S400, when it is detected that the test terminal can normally send and receive related data in the target cell, it is determined that the bidirectional service of the test terminal in the target cell is normal. Further, in step S400, when it is detected that the test terminal fails to normally transmit and receive related data in the target cell, it is determined that the bidirectional service of the test terminal is abnormal in the target cell.
In the test method of the embodiment of the invention, after the host computer controls the test terminal to be powered on and started, whether the test terminal sends an RRC (radio resource control) setting request message to a target cell is detected, the test terminal is ensured to be successfully registered to the target cell, then the test terminal is controlled to establish session connection with a test server, and whether the test terminal can normally send and receive related data in the target cell is detected. The test terminal is configured to support the functions of a fifth generation mobile communication standard 5G and a fourth generation mobile communication standard 4G, and after the MBSFN function is started for the fourth generation mobile communication standard 4G cell, the target cell configures the cell transmitted on the fourth generation mobile communication standard 4G frequency spectrum in a related manner for the fifth generation mobile communication standard 5G cell. By the method, the terminal can be subjected to related tests in the dynamic spectrum sharing system.
FIG. 4 is a flowchart of another testing method according to an embodiment of the present invention. As shown in fig. 4, the testing method specifically includes the following steps:
s100', setting a test mode, and configuring a system simulator and a test terminal.
Specifically, a test mode is set, and a system simulator and a test terminal are configured to construct a dynamic spectrum sharing system model as shown in fig. 2.
S200', the host computer controls the test terminal to be powered on and started.
S300', the host computer detects whether the test terminal transmits an RRC setup request (RRC setup request) message to the target cell.
Specifically, after the host computer controls the test terminal to be powered on and started up, whether the test terminal sends an RRC setting request message to a target cell is detected. If the host computer detects that the test terminal sends an RRC setting request message to the target cell, the host computer jumps to S500'. If the host computer detects that the test terminal does not send the RRC setup request message to the target cell, it jumps to S400'.
S400', the test is not passed.
Specifically, the test failure result is output, and the test flow is ended. If the subsequent test flow exists, the subsequent test is not executed, and the test flow is directly ended.
S500', the host computer controls the test terminal to establish session connection with the test server.
Specifically, after the host computer detects that the test terminal sends an RRC setting request message to the target cell, the test terminal is controlled to establish session connection with the test server.
S600', the host computer detects whether the test terminal can normally send and receive related data in the target cell.
Specifically, after the host computer controls the test terminal to establish session connection with the test server, whether the test terminal can normally send and receive related data in the target cell is detected. And if the test terminal is detected to be capable of normally sending and receiving the related data in the target cell, skipping to S700'. And if the test terminal is detected not to be capable of normally sending and receiving the related data in the target cell, jumping to S400'.
S700', the test is passed.
Specifically, the test pass result is output, and the test flow is ended.
In the test method of the embodiment of the invention, after the host computer controls the test terminal to be powered on and started, whether the test terminal sends an RRC (radio resource control) setting request message to a target cell is detected, the test terminal is ensured to be successfully registered to the target cell, then the test terminal is controlled to establish session connection with a test server, and whether the test terminal can normally send and receive related data in the target cell is detected. The test terminal is configured to support the functions of a fifth generation mobile communication standard 5G and a fourth generation mobile communication standard 4G, and after the MBSFN function is started for the fourth generation mobile communication standard 4G cell, the target cell configures the cell transmitted on the fourth generation mobile communication standard 4G frequency spectrum in a related manner for the fifth generation mobile communication standard 5G cell. By the method, the terminal can be subjected to related tests in the dynamic spectrum sharing system.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A method for testing dynamic spectrum sharing, the method comprising:
the host computer controls the test terminal to be powered on and started up, wherein the test terminal is configured to support the functions of a fifth generation mobile communication standard 5G and a fourth generation mobile communication standard 4G;
the host computer detects whether the test terminal sends an RRC setting request message to a target cell or not and ensures that the test terminal is successfully registered to the target cell; after the MBSFN function is started for the fourth generation mobile communication standard 4G cell, the target cell is a cell which is transmitted on the fourth generation mobile communication standard 4G frequency spectrum by the related configuration of the fifth generation mobile communication standard 5G cell;
the host computer controls the test terminal to establish session connection with the test server;
the host computer detects whether the test terminal can normally send and receive related data in the target cell.
2. The method of claim 1, further comprising:
and when the test terminal is detected to send an RRC setting request message to the target cell, the test terminal is determined to be correctly and successfully registered to the target cell.
3. The method of claim 2, further comprising:
and when detecting that the test terminal does not send an RRC setting request message to the target cell, determining that the test terminal cannot be correctly and successfully registered to the target cell.
4. The method of claim 1, further comprising:
and when detecting that the test terminal can normally send and receive related data in the target cell, determining that the bidirectional service of the test terminal on the target cell is normal.
5. The method of claim 4, further comprising:
and when detecting that the test terminal fails to normally send and receive related data in the target cell, determining that the bidirectional service of the test terminal on the target cell is abnormal.
6. The method of claim 1, wherein before controlling the test terminal to power on, the method further comprises:
and setting a test mode, and configuring a system simulator and the test terminal.
7. A dynamic spectrum sharing system, the system comprising:
testing the terminal;
a system simulator; and
a host computer connected to the terminal under test and the system simulator and adapted to perform the method of any one of claims 1-6.
CN202111503263.0A 2021-12-09 2021-12-09 Dynamic spectrum sharing test method and system Pending CN114258030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111503263.0A CN114258030A (en) 2021-12-09 2021-12-09 Dynamic spectrum sharing test method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111503263.0A CN114258030A (en) 2021-12-09 2021-12-09 Dynamic spectrum sharing test method and system

Publications (1)

Publication Number Publication Date
CN114258030A true CN114258030A (en) 2022-03-29

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Application Number Title Priority Date Filing Date
CN202111503263.0A Pending CN114258030A (en) 2021-12-09 2021-12-09 Dynamic spectrum sharing test method and system

Country Status (1)

Country Link
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