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US 11,996,967 B2Granted
Low peak-to-average power ratio (PAPR) reference signal (RS) design for high frequency bands
AssigneeIntel Corporation
InventorsAvik Sengupta, Alexei Davydov
Life of this patent
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Abstract
Various embodiments herein provide techniques for reference signal (RS) configuration for high frequency bands (e.g., frequency above 52.6 GHz). For example, embodiments may include techniques for configuration of a demodulation reference signal (DM-RS), a channel state information reference signal (CSI-RS), and/or a sounding reference signal (SRS). The RS configuration may provide a low peak-to-average power ratio (PAPR) compared to prior techniques. Other embodiments may be described and claimed.
Claims17
One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed by one or more processors cause a next generation NodeB (gNB) to:
- generate a complementary binary sequence pair for transmission of a reference signal on a first antenna port, wherein the complementary binary sequence pair includes a first binary sequence for transmission on a first Discrete Fourier Transform spreading Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) symbol and a second binary sequence for transmission on a second DFT-s-OFDM symbol;
- modulate the complementary binary sequence pair according to π/2-BPSK modulation;
- generate a modified complementary binary sequence pair, wherein generation of the modified complementary binary sequence pair includes:
- reversing a sequence order of the first and second binary sequences to generate a reversed first binary sequence and a reversed second binary sequence;
- associating the reversed first binary sequence for transmission on the second DFT-s-OFDM symbol and associating the reversed second binary sequence for transmission on the first DFT-s-OFDM symbol;
- and
- switching a sign of one of the reversed first binary sequence that is to be transmitted on the second DFT-s-OFDM symbol and the reversed second binary sequence that is to be transmitted on the second DFT-s-OFDM symbol;
- and
- use the modified complementary binary sequence pair for transmission of the reference signal on a second antenna port.
6 more elements
A base station comprising:
- one or more processors;
- and
- one or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed by one or more processors cause the base station to:
- generate a complementary binary sequence pair for transmission of a reference signal on a first antenna port, wherein the complementary binary sequence pair includes a first binary sequence for transmission on a first Discrete Fourier Transform spreading Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) symbol and a second binary sequence for transmission on a second DFT-s-OFDM symbol;
- modulate the complementary binary sequence pair according to π/2-BPSK modulation;
- generate a modified complementary binary sequence pair, wherein generation of the modified complementary binary sequence pair includes:
- reversing a sequence order of the first and second binary sequences to generate a reversed first binary sequence and a reversed second binary sequence;
- associating the reversed first binary sequence for transmission on the second DFT-s-OFDM symbol and associating the reversed second binary sequence for transmission on the first DFT-s-OFDM symbol;
- and
- switching a sign of one of the reversed first binary sequence that is to be transmitted on the second DFT-s-OFDM symbol and the reversed second binary sequence that is to be transmitted on the second DFT-s-OFDM symbol;
- and
- switching a sign of one of the first or second binary sequences;
- and
- use the modified complementary binary sequence pair for transmission of the reference signal on a second antenna port.
11 more elements
An electronic device for use in a base station, wherein the apparatus comprises:
- one or more processors;
- and
- one or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed by one or more processors cause the electronic device to:
- generate a complementary binary sequence pair for transmission of a reference signal on a first antenna port, wherein the complementary binary sequence pair includes a first binary sequence for transmission on a first Discrete Fourier Transform spreading Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) symbol and a second binary sequence for transmission on a second DFT-s-OFDM symbol;
- modulate the complementary binary sequence pair according to π/2-BPSK modulation;
- generate a modified complementary binary sequence pair, wherein generation of the modified complementary binary sequence pair includes:
- reversing a sequence order of the first and second binary sequences to generate a reversed first binary sequence and a reversed second binary sequence;
- associating the reversed first binary sequence for transmission on the second DFT-s-OFDM symbol and associating the reversed second binary sequence for transmission on the first DFT-s-OFDM symbol;
- and
- switching a sign of one of the reversed first binary sequence that is to be transmitted on the second DFT-s-OFDM symbol and the reversed second binary sequence that is to be transmitted on the second DFT-s-OFDM symbol;
- and
- use the modified complementary binary sequence pair for transmission of the reference signal on a second antenna port.
9 more elements
Dependencies are inferred from the claim text.