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US 2020/0288501 A1Published application
User terminal and radio communication method
AssigneeNtt Docomo, Inc.
InventorsKazuaki Takeda, Kazuki Takeda, Satoshi Nagata
Life of this patent
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Abstract
The present invention is designed to properly transmit a scheduling request, a random access preamble, and a sounding reference signal when single-UL communication is applied to a non-stand-alone radio communication system. A user terminal controls the transmission of at least one of the scheduling request, the random access preamble and the sounding reference signal in the first RAT based at least on UL/DL configurations.
Claims11
A user terminal comprising:
- a transmission section that transmits a first uplink signal (UL) of a first radio access technology (RAT) and a second UL signal of a second RAT, at different times, the first RAT controlling a timing for transmitting delivery acknowledgment information in frequency division duplexing (FDD) and/or a timing for scheduling UL data, based on a UL/DL configuration to be used in time division duplexing (TDD);
- and
- a control section that controls transmission of at least one of a scheduling request (SR), a random access preamble and a sounding reference signal (SRS) in the first RAT based on at least a UL transmission timing specified by the UL/DL configuration.
A radio communication method comprising the steps of:
- transmitting a first uplink signal (UL) of a first radio access technology (RAT) and a second UL signal of a second RAT, at different times, the first RAT controlling a timing for transmitting delivery acknowledgment information in frequency division duplexing (FDD) and/or a timing for scheduling UL data, based on a UL/DL configuration to be used in time division duplexing (TDD);
- and
- controlling transmission of at least one of a scheduling request (SR), a random access preamble and a sounding reference signal (SRS) in the first RAT based on at least a UL transmission timing specified by the UL/DL configuration.
Dependencies are inferred from the claim text.