KR-20260065447-A - OPERATION METHOD OF TERMINAL FOR CONTROLLING NETWORK ACCESS BASED ON CAPABILITY INFORMATION OF BASE STATION AND TERMINAL THEREOF

KR20260065447AKR 20260065447 AKR20260065447 AKR 20260065447AKR-20260065447-A

Abstract

In a handover environment where multiple base stations located around the terminal change due to the movement of multiple mobile base stations possessing different base station capabilities, the terminal obtains capability information of each base station from the multiple base stations located around the terminal, sets a connection priority for each base station based on the capability information of each base station, and controls base station connections according to the connection priority for each base station. The base station capability includes at least one of multi-antenna configuration information related to the wireless performance of the base station, transmission power information for each base station, and reception power information for each base station. Therefore, the terminal can actively determine which base station to connect to based on the base station capability information of surrounding base stations.

Inventors

김기태
박종대

Assignees

주식회사 케이티

Dates

Publication Date: 20260508
Application Date: 20241212
Priority Date: 20241101

Claims (15)

As a method of operation of the terminal, A step of obtaining capability information of each base station from a plurality of base stations located in the vicinity of the above terminal, A step of setting connection priorities for each base station based on the capability information of each base station mentioned above, and A step of controlling base station connections according to the connection priority for each base station above A method including
In paragraph 1, The capability information of each of the above base stations includes multi-antenna configuration information related to the wireless performance of the base station, and The above-mentioned acquisition step is, A method for obtaining the multiple antenna configuration information by detecting the SSB (Synchronization Signal Block) index for the plurality of base stations.
In paragraph 1, The capability information of each of the above base stations includes transmission power information for each base station, and The above-mentioned acquisition step is, A method for obtaining base station-specific transmission power information using cell identifiers (Cell IDs) received from multiple base stations, based on information in which the maximum transmission power of a base station is set for each of multiple cell identifiers (Cell IDs) or groups of cell identifiers.
In paragraph 1, The capability information of each of the above base stations includes received power information for each base station, and The step of obtaining the above A method for measuring the reception signal quality of a signal received from a plurality of base stations and setting reception power information for each base station based on the measured reception signal quality.
In paragraph 1, The capability information of each of the above base stations includes multi-antenna configuration information related to the wireless performance of the base station, transmission power information per base station, and reception power information per base station, and The above-mentioned acquisition step is, A step of determining the detection method of base station capability information based on preset rule information, When a multi-antenna configuration detection method is determined, a step of obtaining the multi-antenna configuration information through SSB (Synchronization Signal Block) index detection for the plurality of base stations, When a transmission power detection method per base station is determined, a step of obtaining transmission power information per base station using cell identifiers (Cell IDs) received from the plurality of base stations based on a base station power DB in which the maximum transmission power of the base station is set per plurality of cell identifiers (Cell IDs) or groups of cell identifiers, and When a reception power detection method for each base station is determined, the method measures the reception signal quality of signals received from the plurality of base stations and sets reception power information for each base station based on the measured reception signal quality. A method including
In paragraph 1, The above-mentioned controlling step is, A method for differentially setting an offset for selecting a base station to connect to according to the connection priority of each base station.
In paragraph 1, The above-mentioned controlling step is, A method of applying an offset, differentially set according to the connection priority of each base station, to a received signal strength threshold that determines the start time of a measurement gap.
In paragraph 1, The above-mentioned controlling step is, A method for determining the base station to which the terminal will connect according to the connection priority of each base station in a handover environment in which multiple base stations located around the terminal change as multiple mobile base stations having different base station capabilities move.
In paragraph 1, The above-mentioned acquisition step is, A method for acquiring base station capability information based on pre-set target base station information.
A priority management device that sets connection priorities for each base station based on capability information of each base station obtained from multiple base stations located in the vicinity, and Network access control device that controls base station connections according to the connection priority for each base station above A terminal including
In Paragraph 10, It further includes a detection rule management device for setting at least one detection method among a multi-antenna configuration detection method, a base station-specific transmission power detection method, and a base station-specific reception power detection method, and The above priority management device is, A terminal that sets the priority based on at least one of multi-antenna configuration information, base station-specific transmission power information, and base station-specific reception power information obtained according to the detection method set above.
In Paragraph 11, It further includes an SSB estimation device for detecting an SSB (Synchronization Signal Block) index for the plurality of base stations, and The above priority management device is, A terminal that estimates multi-antenna configuration information of each base station based on the above SSB index.
In Paragraph 11, It further includes a reception power detection device for measuring the reception signal quality of signals received from the plurality of base stations, and The above priority management device is, A terminal that sets the priority based on the received power information for each base station set based on the received signal quality measured above.
In Paragraph 11, The above priority management device is, A terminal that obtains base station-specific transmission power information corresponding to a cell identifier (Cell ID) received from a plurality of base stations, based on information in which the maximum transmission power of a base station is set for a plurality of cell identifiers (Cell ID) or a group of cell identifiers.
In Paragraph 10, The above network connection control device is, A terminal that differentially sets an offset for selecting a base station to connect to according to the connection priority of each base station, or applies the differentially set offset according to the connection priority of each base station to a received signal strength threshold that determines the start time of a measurement gap.

Description

Operation method of terminal for controlling network access based on base station capability information and the terminal thereof The present invention relates to a method of operation of a terminal that controls network access by considering base station capability information, and to the terminal itself. This invention was promoted as part of a national research and development project and is being carried out from November 2023 to October 2026 with 100% contribution from the Ministry of Trade, Industry and Energy and the Defense Acquisition Program Administration in relation to the civil-military technology cooperation project led by the Agency for Defense Development, under the research project title "Development of Next-Generation Wireless Communication System for 5G Security Operations" (Project No. 23-CM-TC-13). A 5G specialized network is distinguished from a public 5G network, which allows an unspecified number of people to connect and communicate. A 5G specialized network is a private network that allows access only to users or devices belonging to a specific company and provides specific services necessary for them, and is built using 5G technology, which is a public network technology. 5G specialized networks (or 5G private networks) are designed based on the fundamental principle of configuring geographically independent networks. In an environment where two independent 5G specialized networks exist, collisions may occur because their transmission bandwidths can be identical. Therefore, from the perspective of the terminal, selective network access and handover application are required. However, because mutual complementary scheduling is impossible between different networks, inter-cell interference or inter-RAT interference occurs. FIG. 1 shows a heterogeneous network environment according to one embodiment. FIG. 2 is a base station movement scenario according to one embodiment. Figure 3 is a base station movement scenario according to another embodiment. Figure 4 is a base station movement scenario according to another embodiment. Figure 5 is a base station movement scenario according to another embodiment. FIG. 6 is a block diagram showing the configuration of a terminal according to one embodiment. FIG. 7 illustrates a beam sweeping-based Synchronization Signal Block (SSB) transmission environment according to one embodiment. FIG. 8 is an example diagram illustrating a measurement gap according to one embodiment. FIG. 9 is a block diagram showing the configuration of a base station capability detection device according to another embodiment. FIG. 10 is a block diagram showing the configuration of a terminal according to another embodiment. FIG. 11 describes a base station connection control method of a terminal according to one embodiment. FIG. 12 illustrates a base station connection priority setting process based on base station capability information according to one embodiment. FIG. 13 illustrates a base station connection priority setting process based on base station capability information according to another embodiment. FIG. 14 illustrates a base station connection priority setting process based on base station capability information according to another embodiment. FIG. 15 illustrates a base station connection priority setting process according to base station capability information according to one embodiment according to another embodiment. FIG. 16 illustrates a base station connection priority setting process based on base station capability information according to another embodiment. FIG. 17 is a base station connection priority setting process according to base station capability information according to another embodiment. FIG. 18 illustrates a base station connection control procedure considering base station capability information according to one embodiment. FIG. 19 illustrates a base station connection control procedure considering base station capability information according to another embodiment. Embodiments of the present disclosure are described below with reference to the attached drawings so that those skilled in the art can easily implement them. However, the present disclosure may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present disclosure in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals. Throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Additionally, terms such as “…part,” “…unit,” and “…module” described in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware, software, or a combination of hardware and software. Th