User equipment and base station
AssigneeNtt Docomo, Inc.
InventorsYoshihisa Kishiyama, Kiichi Tateishi
Life of this patent
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Abstract
User equipment for communicating with a base station in a radio communication system supporting communication based on a TDD scheme, the user equipment including a transmitter that transmits an uplink signal while setting a guard time in the uplink signal based on a report signal indicating a structure for each subframe, the report signal being transmitted from the base station; a receiver that receives a downlink signal from the base station; and an identification unit that identifies, based on the report signal, a position of a guard time that is set in the downlink signal received by the receiver.
Claims7
A user equipment comprising:
- a receiver that receives first information and second information, wherein the first information relates to a configuration indicating whether a predetermined interval of 14 symbols is assigned to an uplink signal or a downlink signal and the second information relates to a configuration of a position of a guard time in the predetermined interval of the 14 symbols;
- and
- a transmitter that transmits the uplink signal while setting the guard time in the uplink signal based on the first information and the second information,
- wherein the interval assigned to the downlink signal, the interval assigned to the uplink signal, and the position of the guard time are configured in units of Orthogonal Frequency-Division Multiplexing (OFDM) symbols, and
- wherein the second information indicates one of a plurality of configurations for configuring different guard times.
A base station comprising:
- a transmitter that transmits first information and second information, wherein the first information relates to a configuration indicating whether a predetermined interval of 14 symbols is assigned to an uplink signal or a downlink signal and the second information relates to a configuration of a position of a guard time in the predetermined interval of the 14 symbols;
- and
- a receiver that identifies the position of the guard time set in the uplink signal based on the first information and the second information and that receives the uplink signal,
- wherein the transmitter transmits the downlink signal while setting the guard time in the downlink signal based on the first information and the second information,
- wherein the interval assigned to the downlink signal, the interval assigned to the uplink signal, and the position of the guard time are configured in units of Orthogonal Frequency-Division Multiplexing (OFDM) symbols, and
- wherein the second information indicates one of a plurality of configurations for configuring different guard times.
A communication method by user equipment, the method comprising:
- receiving first information and second information, wherein the first information relates to a configuration indicating whether a predetermined interval of 14 symbols is assigned to an uplink signal or a downlink signal and the second information relates to a configuration of a position of a guard time in the predetermined interval of the 14 symbols;
- and
- transmitting an uplink signal while setting a guard time in the uplink signal based on the first information and the second information,
- wherein the receiving identifies the position of the guard time that is set in the downlink signal based on the first information and the second information, and the receiving receives the downlink signal,
- wherein the interval assigned to the downlink signal, the interval assigned to the uplink signal, and the position of the guard time are configured in units of Orthogonal Frequency-Division Multiplexing (OFDM) symbols, and
- wherein the second information indicates one of a plurality of configurations for configuring different guard times.
Dependencies are inferred from the claim text.