Generating synchronization signals for wireless communication systems
AssigneeHuawei Technologies Co., Ltd.
InventorsFredrik BERGGREN, Branislav POPOVIC
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Abstract
The present disclosure relates to a method for facilitating synchronization in a wireless communication system. A number sequence of length L is defined. The number sequence is mapped on a first set of discrete Fourier frequency coefficients. A second set of discrete Fourier frequency coefficients is generated by frequency shifting the first set of discrete Fourier frequency coefficients. The second set of discrete Fourier frequency coefficients is transformed into a time domain signal.
Claims30
A method for facilitating synchronization in a wireless communication system, comprising:
- defining a number sequence du[n], n=0, 1, . . . , L−1, the length of the number sequence being L, the number sequence being centrally symmetric around an element n=(L−1)/2 of the number sequence, L being an odd positive integer and n denoting an element index of the number sequence;
- mapping the number sequence on a first set of discrete Fourier frequency coefficients {tilde over (H)}u;
- generating a second set of discrete Fourier frequency coefficients Hu by frequency shifting the first set of discrete Fourier frequency coefficients {tilde over (H)}u by m shifts, where m is an integer except zero;
- and
- transforming the second set of discrete Fourier frequency coefficients Hu into a time domain signal.
A method for facilitating synchronization in a wireless communication system, comprising:
- receiving a time domain signal, wherein the time domain signal is transformed from a first set of discrete Fourier frequency coefficients Hu, the first set of discrete Fourier frequency coefficients Hu is obtained by frequency shifting a second set of discrete Fourier frequency coefficients {tilde over (H)}u by m shifts, where m is an integer except zero, and the second set of discrete Fourier frequency coefficients {tilde over (H)}u is a set of centrally symmetric discrete Fourier frequency coefficients;
- demodulating the time domain signal;
- and
- facilitating synchronization by using the demodulated time domain signal.
A signal processing device, comprising:
- means for receiving a time domain signal, wherein the time domain signal is transformed from a first set of discrete Fourier frequency coefficients Hu, the first set of discrete Fourier frequency coefficients Hu is obtained by frequency shifting a second set of discrete Fourier frequency coefficients {tilde over (H)}u by m shifts, where m is an integer except zero, and the second set of discrete Fourier frequency coefficients {tilde over (H)}u is a set of centrally symmetric discrete Fourier frequency coefficients;
- means for demodulating the time domain signal;
- and
- means for facilitating synchronization in a wireless communication system by using the demodulated time domain signal.
Dependencies are inferred from the claim text.