US-20260128920-A1 - METHOD AND SYSTEM FOR ASSURING CONFERENCE SECURITY AND MULTIMEDIA SESSION SETUP INCLUDING IMPROVEMENT OF SESSION INITIATION PROTOCOL IN INTERNET PROTOCOL NETWORK

Abstract

The present invention relates to improving the security environment in IP networks and some standardized protocol relevant to the establishment of multimedia sessions by an artificial intelligence (AI) technology. The first aspect of the present invention is to reinforce the security level on the meeting contents that may be shared among or between the meeting participants by using the AI technology. The second aspect of the present invention is to overcome a session establishment failure due to at least one item included in the session description protocol (SDP) when setting up a multimedia session between at least two terminals by using the AI technology. And the third aspect of the present invention is to introduce a new parameter to improve the max-forward function of the session initiation protocol (SIP), which can be viewed as de facto standard in audio or video teleconferencing in IP networks.

Inventors

• Sunghyun YOON

Assignees

• SK PLANET CO., LTD.

Dates

Publication Date

20260507

Application Date

20251103

Priority Date

20241107

Claims (8)

1. 1 . A computer-implemented method to execute a session initiation protocol (SIP) to establish a multimedia session between at least two terminals including a sender terminal and a receiver terminal, comprising: performing a periodic tracking on a number of hops required to transmit an IPv4 or IPv6 packet from the sender terminal to the receiver terminal, by an AI SIP application installed with the sender terminal; acquiring a mean value over an interval per a predetermined unit period based on the number of hops periodically tracked, by the AI SIP application; continuing the periodic tracking by setting an AI max-forward parameter as a result of addition or subtraction of a predetermined natural number to the mean value over the interval when executing the SIP on the sender terminal by the AI SIP application; counting a number of occasions where the AI max-forward parameter turns out not to be enough during the periodic tracking, by the AI SIP application; and adjusting the AI max-forward parameter with a predetermined incremental value if the counted number of the occasions reaches a threshold level, by the AI SIP application, or adjusting the AI max-forward parameter with a predetermined decremental value if the counted number of the occasions does not reach the threshold level for a predetermined amount of term while performing the periodic tracking.
2. 2 . The computer-implemented method of claim 1 , wherein, if the adjusting of the AI max-forward parameter occurs over a predetermined frequency, then the incremental value or the decremental value is replaced by an adjusted incremental value or an adjusted decremental value.
3. 3 . The computer-implemented method of claim 1 , wherein, if the adjusting of the AI max-forward parameter occurs over a predetermined frequency, then the periodic tracking is adjusted to be performed less frequently or more frequently than before.
4. 4 . The computer-implemented method of claim 1 , wherein, the AI SIP application creates an indication that a max-forward parameter used in the SIP is substituted with the AI max-forward parameter as a field value of an IPv4 packet header, an IPv6 packet header, or an SIP message header.
5. 5 . A computer network system to execute a session initiation protocol (SIP) to establish a multimedia session between at least two terminals, comprising: a sender terminal transmitting an INVITE message based on the SIP; and a receiver terminal receiving and replying to the INVITE message based on the SIP, wherein the sender terminal is installed with an AI SIP application, and wherein the AI SIP application executes processes of (a) performing a periodic tracking on a number of hops required to transmit an IPv4 or IPv6 packet from the sender terminal to the receiver terminal; (b) acquiring a mean value over an interval per a predetermined unit period based on the number of hops periodically tracked; (c) continuing the periodic tracking by setting an AI max-forward parameter as a result of addition or subtraction of a predetermined natural number to the mean value over the interval when executing the SIP on the sender terminal; (d) counting a number of occasions where the AI max-forward parameter turns out not to be enough during the periodic tracking; and (e) adjusting the AI max-forward parameter with a predetermined incremental value if the counted number of the occasions reaches a threshold level, by the AI SIP application, or adjusting the AI max-forward parameter with a predetermined decremental value if the counted number of the occasions does not reach the threshold level for a predetermined amount of term while performing the periodic tracking.
6. 6 . The computer network system of claim 5 , wherein, if the adjusting of the AI max-forward parameter occurs over a predetermined frequency, then the incremental value or the decremental value is replaced by an adjusted incremental value or an adjusted decremental value.
7. 7 . The computer network system of claim 5 , wherein, if the adjusting of the AI max-forward parameter occurs over a predetermined frequency, then the periodic tracking is adjusted to be performed less frequently or more frequently than before.
8. 8 . The computer network system of claim 5 , wherein, the AI SIP application creates an indication that a max-forward parameter used in the SIP is substituted with the AI max-forward parameter as a field value of an IPv4 packet header, an IPv6 packet header, or an SIP message header.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application claims priority to Korean Patent Applications No. 10-2024-0156904, filed on Nov. 7, 2024, Korean Patent Applications No. 10-2024-0183181, filed on Dec. 10, 2024, and Korean Patent Applications No. 10-2024-0183199, filed on Dec. 10, 2024, which are incorporated by reference herein in their entirety. BACKGROUND 1. Field of the Invention The present invention relates to a system and method to improve the security environment in IP networks and some standardized protocol relevant to the establishment of multimedia sessions by an artificial intelligence (AI) technology. The present invention has at least three aspects. The first aspect of the present invention is to reinforce the security level on the meeting contents that may be shared among or between the meeting participants by using the AI technology. The second aspect of the present invention is to overcome a session establishment failure due to at least one item included in the session description protocol (SDP) when setting up a multimedia session between at least two terminals by using the AI technology. And the third aspect of the present invention is to introduce a new parameter to improve the max-forward function of the session initiation protocol (SIP), which can be viewed as de facto standard in audio or video teleconferencing in IP networks. 2. Description of the Related Art Thanks to recent advances in IT (Information Technology), ICT (Information and Communications Technology), and wired and wireless network technology, various devices that support meetings are being developed and commercialized. For example, a so-called speakerphone that combines a microphone and a speakerphone can be found easily in a conference room at a company. By using the speakerphone, when there is a meeting including multiple people in a company and a third party, all meeting participants can listen to what the third party is saying through the speakerphone. If one of the meeting participants speaks, the other meeting participants in the conference room and the third party participating in the meeting remotely may almost simultaneously hear what is spoken during the meeting. Nowadays, in order to support video conferencing, for example, a large screen that can transmit and play multimedia data, which could be the contents of the meeting, is installed in the center of the conference room, and a microphone is often provided in the seat where the meeting participants are seated. By using the on/off button of the microphone, each participant can speak if necessary. In addition, there are audio recording devices to record sounds generated inside the conference room, cameras to film the meeting situation, and facial or fingerprint reader machines to allow or restrict access to the conference room. As the telecommuting becomes more common, it has become possible for employees or meeting participants to attend multi-party video conferences online by using personal notebooks, smartphones, smart pads, etc. These smart devices are provided with many applications developed for such smart teleconferencing. However, sometimes the conference organizer may not ask the participants to manipulate their smart devices at the organizer's will because some participants may be participating in the conference from home. Thus, depending on the participant's specific situation, the meeting organizer may have to respect the participant's privacy more than when they have onsite meetings at a company. The concept of “meeting” or “conference” is expanding. Meetings do not have to be business meetings. In fact, university lectures are often provided online, and two individuals can make a video call anywhere any time. There is no reason not to exclude these lectures or friends' talking from the scope of a meeting. Thanks to the aforementioned advancement of ICT technology and the wide spread of smartphones, it is no longer meaningful to distinguish whether a conversation between two or more people is a “meeting” or not just by who the meeting participants are or what the meeting agenda is. In short, it can be understood that the current era is in which the concept of meetings is greatly expanded. On the one hand, the offline meeting environment is becoming more advanced, and on the other hand, as online meetings become as important in daily life as offline meetings, the importance of meeting security is becoming more prominent. In other words, not only online meetings but also offline meetings are increasingly carrying devices that can be easily linked to the outside world through the network (e.g., using smartphones, laptops, etc. to send secure emails to external third parties), and if the audio, video, and electronic documents (meeting materials, lecture materials, slides, etc.) shared during the meeting contain matters that may infringe on personal privacy or be related to corporate trade secrets, the possibility of the content being easily s