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US 12,652,205 B2Granted
Adaptive peak to average power ratio (PAPR) suppression apparatus and method, and communication device
AssigneeHuawei Technologies Co., Ltd.
InventorsZhiqiang Zou, Yanan Gao, Yaqi Wu
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Abstract
PAPR suppression includes a first clipping module and a second clipping module. The second clipping module outputs, to the first clipping module, a to-be-clipped signal that satisfies an input condition of the first clipping module, where the input condition includes a peak distribution feature of an input signal. The first clipping module performs first clipping processing on the to-be-clipped signal to obtain a first clipped signal. PAPR suppression is performed based on collaboration between the two clipping modules.
Claims17
An apparatus, comprising:
- a first clipping module;
- and
- a second clipping module, the second clipping module being configured to output, to the first clipping module, a to-be-clipped signal that satisfies an input condition of the first clipping module, wherein the input condition comprises a peak distribution feature of an input signal;
- wherein:
- the first clipping module is configured to perform first clipping processing on the to-be-clipped signal, to generate a first clipped signal;
- and
- the apparatus is configured to provide a bypass mode, wherein:
- the second clipping module is configured to receive an input signal and output the input signal to the first clipping module;
- and
- the first clipping module is configured to perform third clipping processing on the input signal received from the second clipping module, the processing being based on a clipping parameter corresponding to a carrier parameter of the input signal, wherein the clipping parameter is configured for different carriers based on a statistical feature of peak distribution of the input signal.
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A method, comprising:
- performing second clipping processing on an input signal whose carrier parameter does not satisfy an input condition to obtain a to-be-clipped signal, and performing first clipping processing on the to-be-clipped signal to obtain a first clipped signal, wherein:
- the input condition comprises a peak distribution feature of an input signal and a carrier parameter of the to-be-clipped signal satisfies the input condition, the method further comprising:
- performing third clipping processing on the input signal based on a clipping parameter corresponding to the carrier parameter of the input signal, the clipping parameter being configured for different carriers based on a statistical feature of peak distribution of the input signal.
An apparatus, comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor and storing instructions for execution by the at least one processor wherein, when executed, the instructions cause the apparatus to perform operations comprising:
- performing second clipping processing on an input signal whose carrier parameter does not satisfy an input condition to obtain a to-be-clipped signal;
- performing first clipping processing on the to-be-clipped signal to obtain a first clipped signal, the input condition comprising a peak distribution feature of an input signal, and a carrier parameter of the to-be-clipped signal satisfies the input condition;
- and
- performing third clipping processing on the input signal based on a clipping parameter corresponding to the carrier parameter of the input signal, wherein the clipping parameter is configured for different carriers based on a statistical feature of peak distribution of the input signal.
4 more elements
Dependencies are inferred from the claim text.