Granted Patent B2

US 12,659,923 · App. 18/502,877 · Granted Jun 16, 2026

Inventors: Tatsuki Nagano (Kariya-city, JP); Hideaki Takahashi (Kariya-city, JP)

Assignees: DENSO CORPORATION; TOYOTA JIDOSHA KABUSHIKI KAISHA

H04W68/005H04W24/10

Abstract

Claims (39)

1 . A terminal comprising:

a memory storing instructions; and

one or more processors configured to execute the instructions to:

receive, from a base station, system information including information for indicating a total number of subgroups of a paging occasion and information for indicating a number of paging occasions for a paging frame;

receive, from the base station, first downlink control information including a field for indicating a subgroup of the paging occasion;

determine the subgroup of the paging occasion to which the terminal belongs, based on the information for indicating the total number of subgroups of the paging occasion, the information for indicating the number of paging occasions for the paging frame, and an identifier of the terminal;

determine a number of bits for the field based on the information for indicating the total number of subgroups of the paging occasion; and

monitor a physical downlink control channel (PDCCH) for second downlink control information in the paging occasion in a case where a bit of the field indicates the subgroup of the paging occasion to which the terminal belongs.

2 . The terminal according to claim 1 , wherein:

the one or more processors are further configured to execute the instructions to skip the monitoring of the PDCCH for the second downlink control information in the paging occasion in a case where the first downlink control information is not detected, or the bit of the field does not indicate the subgroup of the paging occasion to which the terminal belongs.

3 . The terminal according to claim 1 , wherein:

the field includes a bitmap with the number of bits based on the information for indicating the total number of subgroups of the paging occasion, and

respective bits of the bitmap from a most significant bit to a least significant bit correspond to the subgroups of the paging occasion in ascending order of index values of the subgroups.

4 . The terminal according to claim 1 , wherein:

the one or more processors are further configured to execute the instructions to receive, from a network, information for indicating a subgroup of the paging occasion to which the terminal belongs.

5 . A base station comprising:

a memory storing instructions; and

one or more processors configured to execute the instructions to:

determine a total number of subgroups of a paging occasion and a number of paging occasions for a paging frame;

determine a subgroup of the paging occasion for a terminal;

transmit, to the terminal, system information including information for indicating the total number of subgroups of the paging occasion and information for indicating the number of paging occasions for the paging frame; and

transmit, to the terminal, first downlink control information including a field for indicating a subgroup of the paging occasion; wherein:

the subgroup of the paging occasion to which the terminal belongs is determined based on the information for indicating the total number of subgroups of the paging occasion, the information for indicating the number of paging occasions for the paging frame, and an identifier of the terminal;

a number of bits for the field is determined based on the information for indicating the total number of subgroups of the paging occasion;

the field includes a bitmap with the number of bits based on the information for indicating the total number of subgroups of the paging occasion; and

respective bits of the bitmap from a most significant bit to a least significant bit correspond to the subgroups of the paging occasion in ascending order of index values of the subgroups.

6 . A wireless communication method performed by a terminal, the wireless communication method comprising:

receiving, from a base station, system information including information for indicating a total number of subgroups of a paging occasion and information for indicating a number of paging occasions for a paging frame;

receiving, from the base station, first downlink control information including a field for indicating a subgroup of the paging occasion;

determining the subgroup of the paging occasion to which the terminal belongs, based on the information for indicating the total number of subgroups of the paging occasion, the information for indicating the number of paging occasions for the paging frame, and an identifier for the terminal;

determining a number of bits for the field based on the information for indicating the total number of subgroups of the paging occasion; and

monitoring a physical downlink control channel (PDCCH) for second downlink control information in the paging occasion in a case where a bit of the field indicates the subgroup of the paging occasion to which the terminal belongs.

7 . The wireless communication method according to claim 6 , further comprising:

skipping the monitoring of the PDCCH for the second downlink control information in the paging occasion in a case where the first downlink control information is not detected, or the bit of the field does not indicate the subgroup of the paging occasion to which the terminal belongs.

8 . The wireless communication method according to claim 6 , wherein:

the field includes a bitmap with the number of bits based on the information for indicating the total number of subgroups of the paging occasion; and

respective bits of the bitmap from a most significant bit to a least significant bit correspond to the subgroups of the paging occasion in ascending order of index values of the subgroups.

9 . The wireless communication method according to claim 6 , further comprising:

receiving, from a network, information for indicating a subgroup of the paging occasion to which the terminal belongs.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (12)