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US 10,897,296 B2Granted
Terminal apparatus, base station, method and recording medium
AssigneeSony Corporation
InventorHiroaki Takano
Life of this patent
Estimating the term…
Abstract
[Object] To provide a mechanism capable of evaluating the quality of beams in an environment in which beam tracking is provided. [Solution] A terminal apparatus, including: a communication unit configured to perform communication with a base station configured to form beams and perform communication; and a control unit configured to receive a downlink signal transmitted from the base station using the beams and thereby acquire quality information indicating quality related to a direction of the beams used for transmitting the downlink signal.
Claims21
A terminal apparatus, comprising:
- a communications circuitry configured to perform communication with a base station configured to form plural beams and perform communication via at least one of the plural beams;
- and
- a control circuitry configured to receive, from the plural beams of the base station, a corresponding downlink beam reference signal and thereby acquire beam specific quality information set by the base station for each of the plural beams, the beam specific quality information being an index value assigned by the base station for indicating a quality of a direction of a corresponding beam,
- wherein the beam specific quality information is set based on an angle between the direction of the corresponding beam and a reference direction, and wherein the beam specific quality information is configured to enable the control circuitry or the base station to determine whether or not to select a connection candidate base station for a handover or a cell selection in an RRC idle state.
1 more element
A base station, comprising:
- communications circuitry configured to form plural beams and perform communication with a terminal apparatus via at least one of the plural beams;
- and
- control circuitry configured to transmit a corresponding downlink beam reference signal to the terminal apparatus using the plural beams, thereby causing the terminal apparatus to acquire beam specific quality information set by the base station, the beam specific quality information being an index value assigned by the base station for indicating a quality of a direction of a corresponding beam,
- wherein the beam specific quality information is set based on an angle between the direction of the corresponding beam and a reference direction, and
- wherein the beam specific quality information is configured to enable the control circuitry or the terminal apparatus to determine whether or not select a connection candidate base station for handover or cell selection in an RRC idle state.
2 more elements
A method performed by a terminal apparatus including communications circuitry and control circuitry, the method comprising:
- performing communication with a base station configured to form plural beams and perform communication via at least one of the plural beams;
- receiving, from the plural beams of the base station, a corresponding downlink beam reference signal and thereby acquire beam specific quality information set by the base station for each of the plural beams, the beam specific quality information being an index value assigned by the base station for indicating a quality of a direction of a corresponding beam,
- wherein the beam specific quality information is set based on an angle between the direction of the corresponding beam and a reference direction;
- and
- wherein the beam specific quality information is configured to enable the control circuitry or the base station to determine whether or not select a connection candidate base station for handover or cell selection in an RRC idle state.
2 more elements
A method performed by a base station including communications circuitry and control circuitry, the method comprising:
- forming plural beams and performing communication with a terminal apparatus via at least one of the plural beams;
- and
- transmitting a corresponding downlink beam reference signal to the terminal apparatus using the plural beams, thereby causing the terminal apparatus to acquire beam specific quality information set by the base station, the beam specific quality information being an index value assigned by the base station for indicating quality of a direction of a corresponding beam,
- wherein the beam specific quality information is set based on an angle between the direction of the corresponding beam and a reference direction, and
- wherein the beam specific quality information is configured to enable the control circuitry or the terminal apparatus to determine whether or not select a connection candidate base station for handover or cell selection in an RRC idle state.
2 more elements
Dependencies are inferred from the claim text.