Granted Patent B2

US 12,563,448 · App. 17/993,288 · Granted Feb 24, 2026

Inventor: Tetsuya Yamamoto (Kanagawa, JP)

Assignee: Canon Kabushiki Kaisha

H04W28/16

Abstract

Claims (59)

1 . A management apparatus configured to manage a frequency resource that is sharable, the management apparatus comprising:

at least one memory that stores a set of instructions; and

at least one processor that executes the instructions, the instructions, when executed, causing the management apparatus to perform operations including:

acquiring usage condition information on a usage condition for the frequency resource used by a first wireless communication network, and desired condition information on a condition under which a second wireless communication network desires to use the frequency resource;

estimating, based on the usage condition information and the desired condition information, an impact imposed by a wireless communication in the second wireless communication network on a wireless communication in the first wireless communication network under an assumption that a wireless signal is transmitted in accordance with the desired condition information in the second wireless communication network;

determining whether to permit use of the frequency resource corresponding to the desired condition information in the second wireless communication network, based on a result of the estimating; and

notifying alternative condition information on a usage condition under which the frequency resource is usable, when the use of the frequency resource corresponding to the desired condition information is determined to be not permitted, wherein

the estimating includes:

estimating a first area in which a wireless signal transmitted in the first wireless communication network in accordance with the usage condition information is of a first value or greater; and

estimating a second area in which, assuming that a wireless signal is transmitted in the second wireless communication network in accordance with the desired condition information, signal intensity of the wireless signal is of a second value or greater, and

the determining includes determining to permit the second wireless communication network to use the frequency resource corresponding to the desired condition information, when the first area and the second area overlap, and when a TDD communication schedule according to the desired condition information is identical with a TDD communication schedule in the second area.

2 . A resource management method executed by a management apparatus configured to manage a frequency resource that is sharable, the resource management method comprising:

acquiring usage condition information on a usage condition for the frequency resource used by a first wireless communication network, and desired condition information on a condition under which a second wireless communication network desires to use the frequency resource;

estimating, based on the usage condition information and the desired condition information, an impact imposed by a wireless communication in the second wireless communication network on a wireless communication in the first wireless communication network under an assumption that a wireless signal is transmitted in accordance with the desired condition information in the second wireless communication network;

determining whether to permit use of the frequency resource corresponding to the desired condition information in the second wireless communication network, based on a result of the estimating; and

notifying alternative condition information on a usage condition under which the frequency resource is usable, when the use of the frequency resource corresponding to the desired condition information is determined to be not permitted, wherein

the estimating includes:

estimating a first area in which a wireless signal transmitted in the first wireless communication network in accordance with the usage condition information is of a first value or greater; and

estimating a second area in which, assuming that a wireless signal is transmitted in the second wireless communication network in accordance with the desired condition information, signal intensity of the wireless signal is of a second value or greater, and

the determining includes determining to permit the second wireless communication network to use the frequency resource corresponding to the desired condition information, when the first area and the second area overlap, and when a TDD communication schedule according to the desired condition information is identical with a TDD communication schedule in the second area.

3 . The resource management method according to claim 2 , wherein the acquiring includes acquiring information related to a frequency of a frequency resource being used, transmission power, a date and time of use, and a communication schedule of time division duplex (TDD) as the usage condition information.

4 . The resource management method according to claim 2 , wherein the desired condition information includes information enabling identification of a position of a base station of the first wireless communication network, a frequency of a frequency resource requested to be used, transmission power, a date and time of use, and a communication schedule of time division duplex (TDD).

5 . The resource management method according to claim 4 , wherein the notifying includes notifying the alternative condition information including instruction of transmission power lower than the transmission power included in the desired condition information.

6 . The resource management method according to claim 4 , wherein the notifying includes notifying the alternative condition information including an instruction of a TDD communication schedule, a frequency, and a use date and time one of which is different from a corresponding one of the TDD communication schedule, the frequency, and the use data and time included in the desired condition information.

7 . The resource management method according to claim 4 , wherein the notifying includes notifying the alternative condition information including a usage condition for a plurality of frequency resources.

8 . The resource management method according to claim 4 , wherein

the acquiring includes acquiring information enabling identification of at least one of movement capability and wireless capability of a base station of the first wireless communication network, and

the notifying includes selecting the alternative condition information based on at least one of the movement capability and the wireless capability of the base station of the first wireless communication network acquired in the acquiring.

9 . The resource management method according to claim 4 , wherein

the estimating includes:

estimating a first area in which a wireless signal transmitted in the first wireless communication network in accordance with the usage condition information is of a first value or greater;

estimating a second area in which, assuming that a wireless signal is transmitted in the second wireless communication network in accordance with the desired condition information, signal intensity of the wireless signal is of a second value or greater; and

estimating an impact imposed by a wireless communication in the second wireless communication network on a wireless communication in the first wireless communication network, based on the first area and the second area.

10 . The resource management method according to claim 9 , wherein

the desired condition information includes information on an antenna directivity of the base station of the second wireless communication network, and

the estimating includes estimating the second area based on the antenna directivity of the base station of the second wireless communication network.

11 . The resource management method according to claim 9 , wherein the estimating includes estimating, assuming that a terminal apparatus that transmits a wireless signal is at an end of a communication area of the base station of the second wireless communication network, the second area including an area in which signal intensity of the wireless signal transmitted by the terminal apparatus is of a predetermined value or greater.

12 . The resource management method according to claim 11 , wherein the estimating includes assuming an antenna directivity of the terminal apparatus, and estimating the second area further based on the assumed antenna directivity of the terminal apparatus.

13 . The resource management method according to claim 2 , wherein the first wireless communication network and the second wireless communication network are local fifth generation mobile communication networks.

14 . A resource management method executed by a management apparatus configured to manage a frequency resource that is sharable, the resource management method comprising:

acquiring usage condition information on a usage condition for the frequency resource used by a first wireless communication network, and desired condition information on a condition under which a second wireless communication network desires to use the frequency resource;

estimating, based on the usage condition information and the desired condition information, an impact imposed by a wireless communication in the second wireless communication network on a wireless communication in the first wireless communication network under an assumption that a wireless signal is transmitted in accordance with the desired condition information in the second wireless communication network;

determining whether to change an operation of the frequency resource corresponding to the usage condition information by the first wireless communication network, based on a result of the determining; and

notifying alternative condition information on a usage condition under which the frequency resource is usable, when the operation of the frequency resource corresponding to the usage condition information is determined to be changed,

wherein

the estimating includes:

estimating a first area in which a wireless signal transmitted in the first wireless communication network in accordance with the usage condition information is of a first value or greater; and

estimating a second area in which, assuming that a wireless signal is transmitted in the second wireless communication network in accordance with the desired condition information, signal intensity of the wireless signal is of a second value or greater, and

the determining includes determining not to change the operation of the frequency resource corresponding to the usage condition information by the first wireless communication network, when the first area and the second area overlap, and when the TDD communication schedule according to the desired condition information is identical with a TDD communication schedule in the second area.

15 . A non-transitory computer-readable storage medium storing instructions for causing a management apparatus, configured to manage a frequency resource that is sharable, to execute a resource management method including:

acquiring usage condition information on a usage condition for the frequency resource used by a first wireless communication network, and desired condition information on a condition under which a second wireless communication network desires to use the frequency resource;

estimating, based on the usage condition information and the desired condition information, an impact imposed by a wireless communication in the second wireless communication network on a wireless communication in the first wireless communication network under an assumption that a wireless signal is transmitted in accordance with the desired condition information in the second wireless communication network;

determining whether to permit use of the frequency resource corresponding to the desired condition information in the second wireless communication network, based on a result of the estimating; and

notifying alternative condition information on a usage condition under which the frequency resource is usable, when the use of the frequency resource corresponding to the desired condition information is determined to be not permitted,

wherein

the estimating includes:

estimating a first area in which a wireless signal transmitted in the first wireless communication network in accordance with the usage condition information is of a first value or greater; and

estimating a second area in which, assuming that a wireless signal is transmitted in the second wireless communication network in accordance with the desired condition information, signal intensity of the wireless signal is of a second value or greater, and

the determining includes determining not to change the operation of the frequency resource corresponding to the usage condition information by the first wireless communication network, when the first area and the second area overlap, and when the TDD communication schedule according to the desired condition information is identical with a TDD communication schedule in the second area.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (13)