US 12,010,524 B2
Band sharing communication system, line control method, line control device, and line control program
Daisuke Goto, Musashino (JP); Fumihiro Yamashita, Musashino (JP); Munehiro Matsui, Musashino (JP); Hiroki Shibayama, Musashino (JP); Yutaka Imaizumi, Musashino (JP); Koichi Harada, Musashino (JP); Izumi Urata, Musashino (JP); and Masaki Shima, Musashino (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/628,771
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Jul. 24, 2019, PCT No. PCT/JP2019/029099
§ 371(c)(1), (2) Date Jan. 20, 2022,
PCT Pub. No. WO2021/014628, PCT Pub. Date Jan. 28, 2021.
Prior Publication US 2022/0279357 A1, Sep. 1, 2022
Int. Cl. H04W 76/36 (2018.01); H04L 5/00 (2006.01); H04W 16/14 (2009.01); H04W 72/0453 (2023.01)
CPC H04W 16/14 (2013.01) [H04L 5/0053 (2013.01); H04L 5/0073 (2013.01); H04W 72/0453 (2013.01); H04W 76/36 (2018.02)] 3 Claims
OG exemplary drawing
 
1. A band sharing communication system in which there are a primary system and a secondary system in descending order of priority of communication, the systems share frequency bands, and a base station or a line control device performs allocation of a requested band of a terminal station of each system, the base station or the line control device comprising:
a processor; and
a non-transitory storage medium having computer program instructions stored thereon, when executed by the processor, perform to:
set a frequency band to be occupied by the primary system as a primary occupied band and a frequency band adjacent to the primary occupied band and to be occupied by the secondary system as a secondary occupied band;
allocate a vacant band of the primary occupied band with respect to a requested band of a primary terminal station of the primary system and allocate a vacant band of the secondary occupied band with respect to a requested band of a secondary terminal station of the secondary system; when there is no vacant band in the primary occupied band with respect to the requested band of the primary terminal station, and when a vacant band equivalent to the requested band is present in the secondary occupied band such that the vacant band is adjacent to the primary occupied band, transfer the vacant band from the secondary occupied band to the primary occupied band and allocate the vacant band to the primary terminal station, and when communication is being performed in a band in the secondary occupied band which is adjacent to the primary occupied band and equivalent to the requested band, transfer a vacant band created by making a suspension request to the secondary terminal station performing the communication from the secondary occupied band to the primary occupied band and allocate the vacant band to the primary terminal station; and
perform a reconnection process using a vacant band in the secondary occupied band for the communication of the secondary terminal station to which the suspension request has been made.