Reference Signals With Improved Cross-Correlation Properties In Wireless Communications
AssigneeMediatek Inc.
InventorWeidong Yang
Life of this patent
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Abstract
Various examples with respect to generation of reference signals with improved cross-correlation properties in wireless communications are described. A processor of a user equipment (UE) selects a column of a Hadamard matrix to provide a vector and also generates a pseudo-random sequence. The processor scrambles the vector with the pseudo-random sequence to provide a scrambling sequence and performs a cyclic shift on the scrambling sequence to provide a cyclic-shifted scrambling sequence. The processor then generates a reference signal by performing a pi/2-binary phase shift keying (BPSK) modulation on the cyclic-shifted scrambling sequence.
Claims20
A method, comprising:
- selecting, by a processor of a user equipment (UE), a column of a Hadamard matrix to provide a vector;
- generating, by the processor, a pseudo-random sequence;
- scrambling, by the processor, the vector with the pseudo-random sequence to provide a scrambling sequence;
- performing, by the processor, a cyclic shift on the scrambling sequence to provide a cyclic-shifted scrambling sequence;
- and
- generating, by the processor, a reference signal by performing a pi/2-binary phase shift keying (BPSK) modulation on the cyclic-shifted scrambling sequence.
An apparatus, comprising:
- a processor capable of:
- selecting a column of a Hadamard matrix to provide a vector;
- generating a pseudo-random sequence;
- scrambling the vector with the pseudo-random sequence to provide a scrambling sequence;
- performing a cyclic shift on the scrambling sequence to provide a cyclic-shifted scrambling sequence;
- and
- generating a reference signal by performing a pi/2-binary phase shift keying (BPSK) modulation on the cyclic-shifted scrambling sequence.
Dependencies are inferred from the claim text.