Communication method and communications apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsYong Liu, Xiang Ren, Xiaoyan Bi
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Abstract
Example communication methods and communications apparatus are described. One example method includes determining power of a demodulation reference signal (DMRS) by a terminal device. The terminal device sends the MARS based on the determined power. In embodiments of this application, the power of the DMRS can be flexibly determined for different communication statuses.
Claims24
A demodulation reference signal (DMRS) sending method, comprising:
- determining, by a terminal device, power of a DMRS as regular power when:
- an uplink scheduling command associated with the DMRS is downlink control information (DCI) whose format is 0_0;
- an uplink transmission waveform is cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM);
- and
- a quantity of symbols occupied in uplink transmission is less than or equal to 2;
- and
- sending, by the terminal device, the DMRS based on the determined power.
A communications apparatus, comprising:
- at least one processor;
- and
- a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, wherein the programming instructions instruct the at least one processor to:
- determine power of a demodulation reference signal (DMRS) as regular power when:
- an uplink scheduling command associated with the DMRS is downlink control information (DCI) whose format is 0_0;
- an uplink transmission waveform is cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM);
- and
- a quantity of symbols occupied in uplink transmission is less than or equal to 2;
- and
- cause the communications apparatus to send the DMRS based on the determined power.
A terminal device, comprising:
- at least one processor;
- a non-transitory computer-readable storage medium storing programming instructions for execution by the at least one processor, wherein the programming instructions instruct the at least one processor to determine power of a demodulation reference signal (DMRS) as regular power when:
- an uplink scheduling command associated with the DMRS is downlink control information (DCI) whose format is 0_0;
- an uplink transmission waveform is cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM);
- and
- a quantity of symbols occupied in uplink transmission is less than or equal to 2;
- and
- a transceiver, the transceiver configured to send the DMRS based on the determined power.
A non-transitory computer readable storage medium, comprising a computer program, wherein when the computer program is run on a computer, the computer is enabled to perform:
- determining power of a DMRS as regular power when:
- an uplink scheduling command associated with the DMRS is downlink control information (DCI) whose format is 0_0;
- an uplink transmission waveform is cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM);
- and
- a quantity of symbols occupied in uplink transmission is less than or equal to 2;
- and
- sending the DMRS based on the determined power.
Dependencies are inferred from the claim text.