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US 10,256,964 B2Granted
Method for transmitting uplink control information, UE and base station
AssigneeFujitsu Limited
InventorsYi Wang, Lei Zhang
Life of this patent
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Abstract
A method for transmitting UCI, UE and base station. The method for transmitting includes: mapping, by UE, UCI onto time-frequency resources, wherein a subframe where the UCI is located contains one uplink reference signal or contains no an uplink reference signal; and transmitting the UCI to a base station via a PUSCH. An uplink reference signal occupies only one OFDM symbol or occupies no an OFDM symbol in a subframe, which may reduce waste of resources, and correspondingly change resource mapping of the UCI, thereby obtaining better decoding performance.
Claims23
A User Equipment (UE), comprising:
- a processor and a memory coupled to the processor that stores a plurality of instructions;
- the processor is configured to execute the instructions to:
- map uplink control information (UCI) onto time-frequency resources;
- wherein when one time-domain symbol of a subframe where the UCI is located carries an uplink reference signal the UCI is close to the one time-domain symbol or wherein when a subframe where the UCI is located carries no uplink reference signal the UCI is close to the closet uplink reference signal located on another subframe;
- and
- transmit the UCI to a base station via a physical uplink shared channel (PUSCH) wherein the UCI comprises at least a first type and a second type, and wherein the processor is further configured to execute instructions to map the first type of UCI onto time-domain symbols in a mapping manner of frequency domain first.
3 more elements
A User Equipment (UE) comprising:
- a memory that stores a plurality of instructions;
- a processor coupled to the memory and configured to execute the instructions to:
- map uplink control information (UCI) onto time-frequency resources wherein one time-domain symbol of a subframe where the UCI is located carries an uplink reference signal or a subframe where the UCI is located carries no uplink reference signal;
- and
- transmit the UCI to a base station via a physical uplink shared channel (PUSCH)
- wherein the processor is further configured to execute instructions to map a first UCI onto Orthogonal Frequency Division Multiplexing (OFDM) symbols, in a mapping manner of time domain first, and
- wherein when the subframe where the UCI is located contains one uplink reference signal, the OFDM symbols are close to the uplink reference signal, or when a subframe where the UCI is located contains no uplink reference signal, the OFDM symbols are close to the closest uplink reference signal located on another subframe.
4 more elements
A base station, comprising:
- a processor and a memory coupled to the processor that stores a plurality of instructions;
- the processor configured to execute the instructions to:
- receive uplink control information (UCI) transmitted by a User Equipment (UE) via a Physical Uplink Shared Channel (PUSCH) PUSCH;
- wherein one time-domain symbol of a subframe where the UCI is located carries an uplink reference signal or the subframe where the UCI is located carries no uplink reference signal;
- and
- demodulate the PUSCH to obtain the UCI;
- wherein a first UCI is mapped onto Orthogonal Frequency Division Multiplexing (OFDM) symbols in a mapping manner of frequency domain first,
- wherein when the subframe where the UCI is located contains one uplink reference signal, the OFDM symbols are close to the uplink reference signal, or when a subframe where the UCI is located contains no uplink reference signal, the OFDM symbols are close to the closest uplink reference signal located on another subframe.
5 more elements
A communication system, comprising:
- a User Equipment (UE), configured to:
- map uplink control information (UCI) onto time-frequency resources;
- wherein one time-domain symbol of a subframe where the UCI is located carries an uplink reference signal or the subframe where the UCI is located carries no uplink reference signal;
- and
- transmit the UCI to a base station via a Physical Uplink Shared Channel (PUSCH), wherein a first UCI is mapped onto Orthogonal Frequency Division Multiplexing (OFDM) symbols in a mapping manner of frequency domain first, wherein when the subframe where the UCI is located contains one uplink reference signal, the OFDM symbols are close to the uplink reference signal, or when a subframe where the UCI is located contains no uplink reference signal, the OFDM symbols are close to the closest uplink reference signal located on another subframe;
- and
- the base station, configured to receive the PUSCH and demodulate the PUSCH to obtain the UCI.
4 more elements
A base station, comprising:
- a memory stores a plurality of instructions;
- a processor coupled to the memory and configured to execute the instructions to:
- receive uplink control information (UCI) transmitted by a User Equipment (UE) via a Physical Uplink Shared Channel (PUSCH);
- wherein one time-domain symbol of a subframe where the UCI is located carries an uplink reference signal or the subframe where the UCI is located carries no uplink reference signal;
- and
- demodulate the PUSCH to obtain the UCI wherein a first UCI is mapped onto Orthogonal Frequency Division Multiplexing (OFDM) symbols in a mapping manner of time domain first, and
- wherein when the subframe where the UCI is located contains one uplink reference signal, the OFDM symbols are close to the uplink reference signal, or when a subframe where the UCI is located contains no uplink reference signal, the OFDM symbols are close to the closest uplink reference signal located on another subframe.
4 more elements
A communication system, comprising:
- a User Equipment (UE), configured to:
- map uplink control information (UCI) onto time-frequency resources;
- wherein one time-domain symbol of a subframe where the UCI is located carries an uplink reference signal or the subframe where the UCI is located carries no uplink reference signal, and
- transmit the UCI to a base station via a Physical Uplink Shared Channel (PUSCH), wherein a first UCI is mapped onto Orthogonal Frequency Division Multiplexing (OFDM) symbols in a mapping manner of time domain first, wherein when the subframe where the UCI is located contains one uplink reference signal, the OFDM symbols are close to the uplink reference signal, or when a subframe where the UCI is located contains no uplink reference signal, the OFDM symbols are close to the closest uplink reference signal located on another subframe;
- and
- the base station, is configured to receive the PUSCH and demodulate the PUSCH to obtain the UCI.
3 more elements
Dependencies are inferred from the claim text.