System and method for generating reference signal with low peak average power ratio
AssigneeHuawei Technologies Co., Ltd.
InventorsNuwan Suresh Ferdinand, Ming Jia, Jianglei Ma, Javad Abdoli
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Abstract
A reference signaling scheme is provided that is based on the use of a Zadoff Chu sequence with cyclic repetition, optionally code division multiplexing precoding, together with frequency domain spectral shaping (FDSS). A specific pulse shape design for the FDSS part of the reference signal scheme in some embodiments involves the use of a raised cosine pulse raised to the power of β. The new solution for generating reference signals has a Low peak average power ratio that matches the PAPR of SC-OQAM, good channel estimation performance, and the ability to implement CDM in the frequency domain to increase multiplexing gain.
Claims22
A method comprising:
- receiving, by an apparatus from a network device, a first signaling indicating a length K sequence;
- transmitting, by the apparatus to the network device a reference signal;
- wherein the reference signal is obtained from the length K sequence, and the length K sequence is obtained by a cyclicly repeated length p ZC sequence,
- where
- p is a prime number,
- p is larger than K/3,
- a largest prime number that is smaller than K is greater than p, and
- p is smaller than the largest prime number that is smaller than K.
A method comprising:
- transmitting, by a network device to an apparatus, a first signaling indicating a length K sequence;
- receiving, by the network device from the apparatus a reference signal;
- wherein the reference signal is obtained from the length K sequence, and the length K sequence is obtained by a cyclicly repeated length p ZC sequence,
- where
- p is a prime number,
- p is larger than K/3,
- a largest prime number that is smaller than K is greater than p, and
- p is smaller than the largest prime number that is smaller than K.
An apparatus comprising:
- a processor and memory, the apparatus configured to:
- receive, by the apparatus from a network device, a first signaling indicating a length K sequence;
- transmit, by the apparatus to the network device a reference signal;
- wherein the reference signal is obtained from the length K sequence, and the length K sequence is obtained by a cyclicly repeated length p ZC sequence,
- where
- p is a prime number,
- p is larger than K/3,
- a largest prime number that is smaller than K is greater than p, and
- p is smaller than the largest prime number that is smaller than K.
A network device comprising:
- a processor and memory, the network device configured to:
- transmit, by a network device to an apparatus, a first signaling indicating a length K sequence;
- receive, by the network device from the apparatus a reference signal;
- wherein the reference signal is obtained from the length K sequence, and the length K sequence is obtained by a cyclicly repeated length p ZC sequence,
- where
- p is a prime number,
- p is larger than K/3,
- a largest prime number that is smaller than K is greater than p, and
- p is smaller than the largest prime number that is smaller than K.
Dependencies are inferred from the claim text.