KR20240003111A - Data reliability determination system durihg data decoding process based on 5g communication network - Google Patents

Abstract

A data reliability determination system during a data decryption process based on a 5G communication network according to an embodiment of the present invention includes a transmission module configured to encrypt and transmit data to be transmitted; and a receiving module configured to decrypt the data received from the transmitting module and perform reliability judgment in the process, wherein the transmitting module: primary encrypts the data to be transmitted to generate a primary encryption result. Consisting of a primary encryption unit; a final data frame structure generator configured to generate a final data frame structure by adding a synchronization signal to the data frame structure including the first encryption result; and a secondary encryption unit configured to generate a secondary encryption result by encrypting the final data frame structure including the first encryption result and the synchronization signal, wherein the receiving module includes: the secondary encryption result. A primary decoding unit configured to decrypt; a primary reliability determination unit configured to perform a primary reliability determination by comparing a synchronization signal output from the primary decoding unit and a synchronization signal directly transmitted from the transmission module; a secondary decoding unit configured to decrypt the data when the data is determined to be trustworthy through the primary reliability determination unit; and a secondary reliability determination unit configured to perform a second reliability determination by comparing the header value included in the data output from the secondary decryption unit with the header value directly transmitted from the transmission module.

Description

Data reliability judgment system during data decoding process based on 5G communication network {DATA RELIABILITY DETERMINATION SYSTEM DURIHG DATA DECODING PROCESS BASED ON 5G COMMUNICATION NETWORK}

The present invention relates to a data reliability determination system during the data decoding process based on a 5G communication network.

In addition to high transmission speed, the characteristics required for 5G communication networks are low latency, which is important in smart factories, autonomous driving V2X (Vehicle to Everything), etc.

In base stations (gNB), etc., the Ultra Reliable and Low Latency Communication (URLLC) function is already planned to be supported at the 1ms level compared to the existing tens of ms (milliseconds) level. The backhaul/fronthaul section is configured with TSN (Time Sensitive Networking) and technologies to guarantee latency are being applied. With the development of these technologies, it is necessary to enter the market for various services with an end-to-end (E2E) latency of 1ms.

With the expansion of virtualization technology, most UPF (User Plane Functions) are installed and applied on virtual servers. Their latency is at the level of several ms (e.g., 2-3 ms), and considering the latency (1 ms) of the access section by the UR LLC base station (gNB), the latency of the existing core node needs to be further improved. Accordingly, a lot of effort is being made to aim for an E2E section of 5ms from the terminal to the service server.

As a way to implement ultra-low delay, placing a User Plane Function (UPF) right next to a specific base station (gNB) or having the base station (gNB) perform termination processing is the best in terms of service quality.

However, considering mobility and service convenience, core equipment such as UPF is typically placed in the center of a specific area to accommodate multiple base stations (gNB).

In general, when communicating wirelessly, data sent from the sender is lost due to random noise when it arrives at the receiver, and there is a possibility that the receiver receives encrypted data with a lost frame structure. If you receive encrypted data, you must re-request it.

As a prior art, a wireless encryption method using GPS time synchronization disclosed in Publication No. 10-2016-0117366 includes the steps of encrypting plaintext received from a specialized communication terminal to generate ciphertext; generating random number data; transmitting a bitstream consisting of the ciphertext and the random number data; A step of outputting data by changing a channel according to GPS time synchronization and the random number value, wherein the step of generating the ciphertext includes inserting a synchronization frame in front of the ciphertext, wherein the synchronization frame is the random number data. and a synchronization pattern for distinguishing the ciphertext and key information used to decrypt the ciphertext, wherein the key information is generated by error correction encoding random numbers and time information, and selects a channel according to the GPS time synchronization and the random number value. In the step of changing and outputting data, time data synchronized to GPS time is used as source data, a time value is generated by applying preset variable conditions to the source data, and according to the generated time value and the random number value. It includes a process of outputting data by changing the channel, and the random number data generation process that is synchronized with the random number data generation in the step of generating the random number data on the receiving side of the output data and the GPS time through the same conditions as the variable conditions. It is described as a wireless encryption method using GPS time synchronization, which includes a process of generating a time value identical to the above time value based on , allowing decryption of received modulated data.

As another prior art, in the method and device for encrypting over-the-air communication in a wireless communication system of Registered Patent Publication No. 10-0915769, a method for encrypting wireless transmission includes receiving a plurality of symbols. step; A shifting step of generating a plurality of phase-shifted symbols by shifting the phase of each symbol of the plurality of symbols; A modulation step of generating at least one modulated subcarrier by modulating each phase shifted symbol of the plurality of phase shifted symbols with an orthogonal subcarrier; and transmitting the at least one modulated subcarrier over a wireless link, wherein the shifting step includes both a device transmitting the plurality of phase shifted symbols and a device receiving the plurality of phase shifted symbols. It is described as a known wireless transmission encryption method including shifting the phase of each symbol of the plurality of symbols based on one code word among the plurality of code words.

However, the conventional configuration as described above had the disadvantage of lacking reliability when an error occurs in the data received from the receiving communication device after transmitting encrypted data through wireless communication.

The purpose of an embodiment of the present invention is to provide a data reliability judgment system during the data decoding process based on a 5G communication network that can simultaneously perform data reliability judgment during the data decoding process.

Meanwhile, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly apparent to those skilled in the art from the description below. It will be understandable.

A system for determining data reliability during a decryption process according to an embodiment of the present invention includes a transmission module configured to encrypt and transmit data to be transmitted; and a receiving module configured to decrypt the data received from the transmitting module and perform reliability judgment in the process, wherein the transmitting module: primary encrypts the data to be transmitted to generate a primary encryption result. Consisting of a primary encryption unit; a final data frame structure generator configured to generate a final data frame structure by adding a synchronization signal to the data frame structure including the first encryption result; and a secondary encryption unit configured to generate a secondary encryption result by encrypting the final data frame structure including the first encryption result and the synchronization signal, wherein the receiving module includes: the secondary encryption result. A primary decoding unit configured to decrypt; a primary reliability determination unit configured to perform a primary reliability determination by comparing a synchronization signal output from the primary decoding unit and a synchronization signal directly transmitted from the transmission module; a secondary decoding unit configured to decrypt the data when the data is determined to be trustworthy through the primary reliability determination unit; and a secondary reliability determination unit configured to perform a second reliability determination by comparing the header value included in the data output from the secondary decryption unit with the header value directly transmitted from the transmission module.

The data reliability determination system during the data decoding process based on a 5G communication network according to an embodiment of the present invention can perform data reliability determination during the data decoding process.

Meanwhile, the effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

Figure 1 is a diagram schematically showing a data reliability determination system 10 during a data decoding process based on a 5G communication network according to an embodiment of the present invention.

Other advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are only provided to ensure that the disclosure of the present invention is complete and to provide common knowledge in the technical field to which the present invention pertains. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

Even if not defined, all terms (including technical or scientific terms) used herein have the same meaning as generally accepted by the general art in the prior art to which this invention belongs.

Terms defined by general dictionaries may be interpreted as having the same meaning as they have in the related art and/or text of the present application, and should not be conceptualized or interpreted in an overly formal manner even if expressions are not clearly defined herein. won't

The terms used in this specification are for describing embodiments and are not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context.

As used in the specification, 'comprises' and/or various conjugations of this verb, such as 'comprises', 'comprising', 'includes', 'comprises', etc., refer to the composition, ingredient, or component mentioned. A step, operation and/or element does not exclude the presence or addition of one or more other compositions, ingredients, components, steps, operations and/or elements. As used herein, the term 'and/or' refers to each of the listed components or various combinations thereof.

Meanwhile, terms such as '~unit', '~unit', '~block', and '~module' used throughout this specification may mean a unit that processes at least one function or operation. For example, it can refer to software, hardware components such as FPGAs or ASICs.

However, '~part', '~unit', '~block', '~module', etc. are not limited to software or hardware. '~ part', '~ base', '~ block', and '~ module' may be configured to reside in an addressable storage medium and may be configured to reproduce one or more processors.

Therefore, as an example, '~part', '~gi', '~block', and '~module' refer to components such as software components, object-oriented software components, class components, and task components. , processes, functions, properties, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and Contains variables.

The functions provided within components and '~part', '~unit', '~block', and '~module' are divided into smaller numbers of components and '~unit', '~unit', '~block'. ', '~module' or can be further separated into additional components and '~sub', '~base', '~block', and '~module'.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings attached to this specification.

Figure 1 is a diagram schematically showing a data reliability determination system 10 during a data decoding process based on a 5G communication network according to an embodiment of the present invention.

Referring to FIG. 1, the data reliability determination system 10 during the data decoding process based on a 5G communication network may include a transmission module 100 and a reception module 200.

Describing the present invention in detail, the present invention provides an encrypted synchronization device with a frame structure sent from the transmitting module 100 when wireless encrypted communication is performed between the transmitting module 100 and the receiving module 200, which are directly connected wirelessly. After decoding the signal and data in the receiving module 200, errors in the synchronization signal and data are determined to provide reliable wireless encrypted communication between transmission and reception.

When the transmitting module 100 and the receiving module 200 are directly connected wirelessly, the synchronization signal and HDLC structured data are stored in the receiving module 200, through which reliability can be determined later.

The frame structure is a synchronization signal added before the data of the HDLC frame structure. In particular, the data of the HDLC structure includes a header and frame data, and the header may include source data and destination data.

The way to judge reliability is to compare the synchronization signal received in advance during direct connection with the synchronization signal currently received. If the match rate is higher than a certain % (e.g. 80%), it is reliable, and conversely, the For example, if the agreement rate is less than 80%, it can be judged as unreliable.

The transmission module 100 may be configured to encrypt and transmit data to be transmitted.

The receiving module 200 may be configured to decode data received from the transmitting module 100 and perform reliability determination in the process.

Below, the process of encrypting data through the transmission module 100 and the process of performing call decryption and reliability determination through the reception module 200 will be described in more detail.

The transmission module 100 may include a primary encryption unit, a final data frame structure generation unit, and a secondary encryption unit.

The primary encryption unit may be configured to primary encrypt data to be transmitted and generate a primary encryption result.

The final data frame structure generator may be configured to generate the final data frame structure by adding a synchronization signal to the data frame structure including the primary encryption result.

The secondary encryption unit may be configured to generate a secondary encryption result by encrypting the final data frame structure including the primary encryption result and the synchronization signal.

The receiving module 200 may include a primary decoding unit, a primary reliability determination unit, a secondary decoding unit, and a secondary reliability determination unit.

The primary decryption unit may be configured to decrypt the secondary encryption result.

The primary reliability determination unit may be configured to perform a primary reliability determination by comparing the synchronization signal output from the primary decoding unit and the synchronization signal directly transmitted from the transmission module.

The secondary decoding unit may be configured to decrypt the data if the data is determined to be trustworthy through the primary reliability determination unit.

The secondary reliability determination unit may be configured to perform a secondary reliability determination by comparing the header value included in the data output from the secondary decryption unit with the header value directly transmitted from the transmission module.

Although the present invention has been described above through examples, the above examples are merely for illustrating the spirit of the present invention and are not limited thereto. Those skilled in the art will understand that various modifications may be made to the above-described embodiments. The scope of the present invention is determined only through interpretation of the appended claims.

10 Data reliability judgment system during the data decoding process based on 5G communication network
100 transmit module
200 receiving module

Claims (1)

a transmission module configured to encrypt and transmit data to be transmitted; and
It includes a receiving module configured to decrypt the data received from the transmitting module and perform reliability judgment in the process,
The transmission module:
a primary encryption unit configured to primary encrypt data to be transmitted and generate a primary encryption result;
a final data frame structure generator configured to generate a final data frame structure by adding a synchronization signal to the data frame structure including the first encryption result; and
A secondary encryption unit configured to generate a secondary encryption result by encrypting the final data frame structure including the first encryption result and the synchronization signal,
The receiving module:
a primary decryption unit configured to decrypt the secondary encryption result;
a primary reliability determination unit configured to perform a primary reliability determination by comparing a synchronization signal output from the primary decoding unit and a synchronization signal directly transmitted from the transmission module;
a secondary decoding unit configured to decrypt the data when the data is determined to be trustworthy through the primary reliability determination unit; and
Data based on a 5G communication network, including a secondary reliability determination unit configured to perform a secondary reliability determination by comparing the header value included in the data output from the secondary decryption unit with the header value directly transmitted from the transmission module. Data reliability judgment system during the decryption process.