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US 11,108,608 B2Granted
Information transmission method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsXi Zhang, Minghui Xu, Lei Chen
Life of this patent
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Abstract
An information transmission method related to the field of communications technologies includes: generating an orthogonal frequency division multiplexing (OFDM) symbol, where the OFDM symbol includes a pi/2-BPSK modulated data signal and a pi/2-binary phase shift keying (BPSK) modulated phase tracking reference signal (PTRS); and sending the OFDM symbol. This method may be applied to an uplink single carrier transmission scenario or a downlink single carrier transmission scenario.
Claims23
A communication method, comprising:
- generating, by a transmit end device, a sequence;
- mapping, by the transmit end device, the sequence to an orthogonal frequency division multiplexing (OFDM) symbol, wherein the sequence comprises a pi/2-binary phase shift keying (BPSK) modulated data signal and a pi/2-BPSK modulated phase tracking reference signal (PTRS);
- and
- sending, by the transmit end device, the OFDM symbol to a receive end device;
- wherein the pi/2-BPSK modulated PTRS comprises one or more PTRS blocks, and each PTRS block comprises one or more consecutive pi/2-BPSK modulated symbols;
- and
- wherein a respective phase shift amount of a respective pi/2-BPSK modulated symbol in the pi/2-BPSK modulated PTRS is related to a location of the respective pi/2-BPSK modulated symbol in the sequence.
4 more elements
A communication apparatus, comprising:
- one or more non-transitory memories configured to store instructions;
- and
- one or more processors coupled to the one or more non-transitory memories, wherein the one or more processors are configured to execute the instructions to facilitate:
- generating a sequence;
- mapping the sequence to an orthogonal frequency division multiplexing (OFDM) symbol, wherein the sequence comprises a pi/2-binary phase shift keying (BPSK) modulated data signal and a pi/2-BPSK modulated phase tracking reference signal (PTRS);
- and
- sending the OFDM symbol to another communication apparatus;
- wherein the pi/2-BPSK modulated PTRS comprises one or more PTRS blocks, and each PTRS block comprises one or more consecutive pi/2-BPSK modulated symbols;
- and
- wherein a respective phase shift amount of a respective pi/2-BPSK modulated symbol in the pi/2-BPSK modulated PTRS is related to a location of the respective pi/2-BPSK modulated symbol in the sequence.
7 more elements
A communication method, comprising:
- receiving, by a receive end device, an orthogonal frequency division multiplexing (OFDM) signal;
- and
- obtaining, by the receive end device, a sequence from the OFDM signal, wherein the sequence comprises a pi/2-binary phase shift keying (BPSK) modulated data signal and a pi/2-BPSK modulated phase tracking reference signal (PTRS);
- wherein the pi/2-BPSK modulated PTRS comprises one or more PTRS blocks, and each PTRS block comprises one or more consecutive pi/2-BPSK modulated symbols;
- and
- wherein a respective phase shift amount of a respective pi/2-BPSK modulated symbol in the pi/2-BPSK modulated PTRS is related to a location of the respective pi/2-BPSK modulated symbol in the sequence.
3 more elements
A communication apparatus, comprising:
- one or more non-transitory memories configured to store instructions;
- and
- one or more processors coupled to the one or more non-transitory memories, wherein the one or more processors are configured to execute the instructions to facilitate:
- receiving an orthogonal frequency division multiplexing (OFDM) signal;
- and
- obtaining a sequence from the OFDM signal, wherein the sequence comprises a pi/2-binary phase shift keying (BPSK) modulated data signal and a pi/2-BPSK modulated phase tracking reference signal (PTRS);
- wherein the pi/2-BPSK modulated PTRS comprises one or more PTRS blocks, and each PTRS block comprises one or more consecutive pi/2-BPSK modulated symbols;
- and
- wherein a respective phase shift amount of a respective pi/2-BPSK modulated symbol in the pi/2-BPSK modulated PTRS is related to a location of the respective pi/2-BPSK modulated symbol in the sequence.
6 more elements
Dependencies are inferred from the claim text.