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US 10,652,829 B2Granted
Transmit power determining method, processing chip, and communications device
AssigneeHuawei Technologies Co., Ltd.
InventorsXi Zhang, Peng Guan, Xiaoyong Tang
Life of this patent
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Abstract
A communication method is provided, including: determining, by a first device, a relative power ratio between a phase tracking reference signal (PTRS) and a data channel; determining, by the first device, a transmit power of the PTRS based on the relative power ratio of the PTRS to the data channel; and sending, by the first device, the PTRS to a second device by using the transmit power of the PTRS.
Claims19
A method of wireless communication comprising:
- determining, by a first device, a power ratio between a phase tracking reference signal (PTRS) and a data channel according to a mapping relationship between a quantity of transport layers and the power ratio;
- determining, by the first device, a transmit power of the PTRS based on the power ratio;
- and
- sending, by the first device, the PTRS to a second device by using the transmit power of the PTRS, wherein, during uplink transmission, the transmit power of the PTRS is determined according to the mapping relationship as follows:
- the power ratio of the PTRS to the data channel is 0 dB when the quantity of transport layers is 1;
- the power ratio of the PTRS to the data channel is 3 dB when the quantity of transport layers is 2;
- the power ratio of the PTRS to the data channel is 4.77 dB when the quantity of transport layers is 3;
- and
- the power ratio of the PTRS to the data channel is 6 dB when the quantity of transport layers is 4,
- wherein a quantity of PTRS ports for the PTRS is less than the quantity of transport layers.
7 more elements
A communications device comprising:
- at least one processor;
- and
- a memory configured to store computer operation instructions that, when executed by the at least one processor, cause the at least one processor to perform:
- determining a power ratio between a phase tracking reference signal (PTRS) and a data channel according to a mapping relationship between a quantity of transport layers and the power ratio;
- and
- determining a transmit power of the PTRS based on the power ratio;
- and
- a transmitter configured to cooperate with the processor to send the PTRS to another communications device by using the transmit power of the PTRS, wherein, during uplink transmission, the transmit power of the PTRS is determined according to the mapping relationship as follows:
- the power ratio of the PTRS to the data channel is 0 dB when the quantity of transport layers is 1;
- the power ratio of the PTRS to the data channel is 3 dB when the quantity of transport layers is 2;
- the power ratio of the PTRS to the data channel is 4.77 dB when the quantity of transport layers is 3;
- and
- the power ratio of the PTRS to the data channel is 6 dB when the quantity of transport layers is 4,
- wherein a quantity of PTRS ports for the PTRS is less than the quantity of transport layers.
11 more elements
A non-transitory computer-readable medium having computer program instructions which, when executed by a processor, cause the processor to perform operations comprising:
- determining a power ratio between a phase tracking reference signal (PTRS) and a data channel according to a mapping relationship between a quantity of transport layers and the power ratio;
- determining transmit power of the PTRS based on the power ratio;
- and
- sending the PTRS by using the transmit power of the PTRS, wherein, during uplink transmission, the transmit power of the PTRS is determined according to the mapping relationship as follows:
- the power ratio of the PTRS to the data channel is 0 dB when the quantity of transport layers is 1;
- the power ratio of the PTRS to the data channel is 3 dB when the quantity of transport layers is 2;
- the power ratio of the PTRS to the data channel is 4.77 dB when the quantity of transport layers is 3;
- and
- the power ratio of the PTRS to the data channel is 6 dB when the quantity of transport layers is 4,
- wherein a quantity of PTRS ports for the PTRS is less than the quantity of transport layers.
7 more elements
Dependencies are inferred from the claim text.