US 12,284,701 B2
Base station and communication method
Hideaki Takahashi, Tokyo (JP); and Tianyang Min, Tokyo (JP)
Assigned to NTT DOCOMO, INC., Tokyo (JP)
Appl. No. 17/759,285
Filed by NTT DOCOMO, INC., Tokyo (JP)
PCT Filed Sep. 28, 2020, PCT No. PCT/JP2020/036749
§ 371(c)(1), (2) Date Jul. 21, 2022,
PCT Pub. No. WO2021/171673, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 2020-033804 (JP), filed on Feb. 28, 2020.
Prior Publication US 2023/0062255 A1, Mar. 2, 2023
Int. Cl. H04W 76/15 (2018.01); H04W 72/0453 (2023.01); H04W 72/27 (2023.01)
CPC H04W 76/15 (2018.02) [H04W 72/0453 (2013.01); H04W 72/27 (2023.01)] 3 Claims
OG exemplary drawing
 
1. A base station comprising:
a receiver that receives capability information including information indicating a first group consisting of one or more band combinations that can be used only for a specific dual connectivity, and information indicating a second group consisting of one or more band combinations that can be used for the specific dual connectivity in a terminal;
a processor that assigns a plurality of indexes to a corresponding plurality of band combinations of a third group, the third group consisting of the plurality of band combinations consisting of the one or more band combinations of the first group and the one or more band combinations of the second group, so that each band combination of the plurality of band combinations of the third group can be identified; and
a transmitter that transmits, to another base station, a signal that can be used for communication between the base stations, the signal including the indexes,
wherein the plurality of indexes indicate positions of the plurality of band combinations of the third group in a list;
wherein the base station is a master node and supports a New Radio (NR) communication scheme, and
wherein the other base station is a secondary node and supports a Long Term Evolution (LTE) communication scheme;
wherein the base station is connected to a 5G-Core Network (SGC).