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US 12,120,565 B2Granted
Base station apparatus, terminal apparatus, control method, and computer-readable storage medium for efficient tracking
AssigneeKddi Corporation
InventorsHiroki Takeda, Yanwei Li
Life of this patent
Estimating the term…
Abstract
Abase station apparatus acquires, for a cell formed by the base station apparatus, a list of area identifiers belonging to a tracking area the same as that of the cell and information of an area identifier of a neighbor cell adjacent to the cell, determines whether or not the area identifier of the neighbor cell is included in the list, and notifies a terminal apparatus of information in which information of the neighbor cell and a result of the determining are associated together.
Claims15
A base station apparatus, comprising:
- one or more processors;
- and
- one or more memories that store a computer-readable instruction for causing, when executed by the one or more processors, the one or more processors to function as:
- an acquiring unit configured to acquire information of a tracking area identifier (TAI) of a neighbor cell adjacent to a cell formed by the base station apparatus and a TAI list that comprises a plurality of TAIs belonging to a same tracking area to which the cell formed by the base station apparatus belongs, wherein the plurality of TAIs indicate tracking areas that can provide an identical network slice;
- a providing unit configured to provide, when performing registration of a position of a terminal apparatus, the terminal apparatus with TAIs belonging to the TAI list;
- and
- a transmission unit configured to transmit, after providing the TAIs belonging to the TAI list to the terminal apparatus, a broadcast signal including the TAI of the neighbor cell and a cell identifier of the neighbor cell.
4 more elements
A terminal apparatus, comprising:
- one or more processors;
- and
- one or more memories that store a computer-readable instruction for causing, when executed by the one or more processors, the one or more processors to function as:
- an acquisition unit configured to acquire, when performing registration of a position of the terminal apparatus, tracking area identifiers (TAIs) belonging to a TAI list that comprises a plurality of TAIs belonging to a same tracking area to which a residing cell where the terminal apparatus is in standby belongs, wherein the plurality of TAIs indicate tracking areas that can provide an identical network slice;
- a receiving unit configured to receive, after acquisition of the TAIs belonging to the TAI list from a base station apparatus forming the residing cell, a broadcast signal including a TAI of a neighbor cell adjacent to the residing cell and a cell identifier of the neighbor cell;
- a determining unit configured to determine whether or not the TAI of the neighbor cell is included in the acquired TAIs belonging to the TAI list;
- and
- a setting unit configured to set a priority for selecting the neighbor cell on a basis of a result of the determining.
5 more elements
A terminal apparatus, comprising:
- one or more processors;
- and
- one or more memories that store a computer-readable instruction for causing, when executed by the one or more processors, the one or more processors to function as:
- an acquisition unit configured to acquire, when performing registration of a position of the terminal apparatus, tracking area identifiers (TAIs) belonging to a TAI list that comprises a plurality of TAIs belonging to a same tracking area to which a residing cell where the terminal apparatus is in standby belongs, wherein the plurality of TAIs indicate tracking areas that can provide an identical network slice;
- a receiving unit configured to receive, after acquisition of the TAIs belonging to the TAI list from a base station apparatus forming the residing cell, a broadcast signal including a TAI of a neighbor cell adjacent to the residing cell and a cell identifier of the neighbor cell;
- a first determining unit configured to determine whether or not the TAI of the neighbor cell is included in the acquired TAIs belonging to the TAI list;
- a second determining unit configured to determine, on a basis of a result of the determining of the first determining unit, whether a predetermined network slice can be provided in the neighbor cell;
- and
- a setting unit configured to set, on a basis of a result of the determining of the second determining unit, a priority for selection of the neighbor cell.
6 more elements
A control method executed by a base station apparatus, comprising:
- acquiring information of a tracking area identifier (TAI) of a neighbor cell adjacent to a cell formed by the base station apparatus and a TAI list that comprises a plurality of TAIs belonging to a same tracking area to which the cell formed by the base station apparatus belongs, wherein the plurality of TAIs indicate tracking areas that can provide an identical network slice;
- providing, when performing registration of a position of a terminal apparatus, the terminal apparatus with TAIs belonging to the TAI list;
- and
- transmitting, after providing the TAIs belonging to the TAI list to the terminal apparatus, a broadcast signal including the TAI of the neighbor cell and cell identifier of the neighbor cell.
1 more element
A control method executed by a terminal apparatus, comprising:
- acquiring, when performing registration of a position of the terminal apparatus, tracking area identifiers (TAIs) belonging to a TAI list that comprises a plurality of TAIs belonging to a same tracking area to which a residing cell where the terminal apparatus is in standby belongs, wherein the plurality of TAIs indicate tracking areas that can provide an identical network slice;
- receiving, after acquisition of the TAIs belonging to the TAI list from a base station apparatus forming the residing cell, a broadcast signal including a TAI of a neighbor cell adjacent to the residing cell and a cell identifier of the neighbor cell;
- determining whether or not the TAI of the neighbor cell is included in the acquired TAIs belonging to the TAI list;
- and
- setting a priority for selecting the neighbor cell on a basis of a result of the determining.
2 more elements
A non-transitory computer-readable storage medium that stores a program for causing a computer included in a base station apparatus to:
- acquire information of a tracking area identifier (TAI) of a neighbor cell adjacent to a cell formed by the base station apparatus and a TAI list that comprises a plurality of TAIs belonging to a same tracking area to which the cell formed by the base station apparatus belongs, wherein the plurality of TAIs indicate tracking areas that can provide an identical network slice;
- provide, when performing registration of a position of a terminal apparatus, the terminal apparatus with TAIs belonging to the TAI list;
- and
- transmit, after providing the TAI belonging to the TAI list to the terminal apparatus, a broadcast signal including the TAI of the neighbor cell and a cell identifier of the neighbor cell.
1 more element
A non-transitory computer-readable storage medium that stores a program for causing a computer included in a terminal apparatus to:
- acquire, when performing registration of a position of the terminal apparatus, tracking area identifiers (TAIs) belonging to a TAI list that comprises a plurality of TAIs belonging to a same tracking area to which a residing cell where the terminal apparatus is in standby belongs, wherein the plurality of TAIs indicate tracking areas that can provide an identical network slice;
- receive, after acquisition of the TAIs belonging to the TAI list from a base station apparatus forming the residing cell, a broadcast signal including a TAI of a neighbor cell adjacent to the residing cell and a cell identifier of the neighbor cell;
- perform determination of whether or not the TAI of the neighbor cell is included in the acquired TAIs belonging to the TAI list;
- and
- set a priority for selecting the neighbor cell on a basis of a result of the determination.
2 more elements
Dependencies are inferred from the claim text.