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US 12,756,609 B2Granted
PAPR reduction for resource unit duplication and tone repetition
AssigneeMediatek Inc.
InventorsShengquan Hu, Jianhan Liu, Tung Sheng Yang, Thomas Edward Pare, Jr.
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Abstract
Various schemes pertaining to peak-to-average power ratio (PAPR) reduction for resource unit (RU) duplication and tone repetition in wireless communications are described. An apparatus generates a resource unit (RU) or multi-RU (MRU). The apparatus then performs a wireless communication using the RU or MRU with either or both of a RU duplication and a tone repetition such that a peak-to-average power ratio (PAPR) is reduced.
Claims10
A method, comprising:
- generating, by a processor of an apparatus, a resource unit (RU) or multi-RU (MRU);
- and
- performing, by the processor, a wireless communication using the RU or MRU with either or both of a RU duplication and a tone repetition such that a peak-to-average power ratio (PAPR) is reduced,
- wherein the performing of the wireless communication using the RU or MRU with the RU duplication comprises applying a mask sequence on data tones of each duplicated RU or MRU,
- wherein each duplicated RU or MRU is split into two or more sections, and
- wherein the applying of the mask sequence on each duplicated RU or MRU comprises:
- applying a same rotation value on all data tones in a respective section of the two or more sections of each duplicated RU or MRU;
- and
- applying a respective mask sequence corresponding to a number of duplications of the RU or MRU,
- wherein the wireless communication comprises either a non-orthogonal frequency-division multiple-access (non-OFDMA) communication or an orthogonal frequency-division multiple-access (OFDMA) communication,
- wherein, responsive to the wireless communication comprising the non-OFDMA communication, the respective mask sequence comprises one of:
- [1 1 −1 1] responsive to duplication of two times (2×);
- [−1 1 1 −1 1 −1 1 1 −1 −1 −1 −1 1 −1 1 1 −1 −1] responsive to duplication of three times (3×);
- [1 1 1 1 −1 1 1 −1] responsive to duplication of four times (4×);
- [−1 1 1 1 −1 1 1 −1 1 −1 1 −1] responsive to duplication of eight timers (8×);
- and
- [1 1 −1 −1 1 −1 −1 1 1 −1 1 1 1 1 −1 1 −1 1] responsive to duplication of nine times (9×), and
- wherein, responsive to the wireless communication comprising the OFDMA communication, the respective mask sequence comprises one of:
- [1 1 −1 1] responsive to duplication of two times (2×) with a 52-tone RU (RU52) over a 106-tone RU (RU106) or [1 1 1 1 −1 1 1 −1] responsive to duplication of four times (4×) with a 26-tone RU (RU26) over the RU106;
- [1 1 −1 1] responsive to duplication of two times (2×) with the RU26 over the RU52;
- and
- [1 1 1 −1 −1 1 1 −1 1 −1 1 1] responsive to duplication of three times (3×) with an aggregate of the RU26 and the RU52 (MRU(26+52).
19 more elements
An apparatus, comprising:
- a transceiver configured to transmit and receive wirelessly;
- and
- a processor coupled to the transceiver and configured to perform operations comprising:
- generating a resource unit (RU) or multi-RU (MRU);
- and
- performing, via the transceiver, a wireless communication using the RU or MRU with either or both of a RU duplication and a tone repetition such that a peak-to-average power ratio (PAPR) is reduced,
- wherein the performing of the wireless communication using the RU or MRU with the RU duplication comprises applying a mask sequence on data tones of each duplicated RU or MRU,
- wherein each duplicated RU or MRU is split into two or more sections, and
- wherein the applying of the mask sequence on each duplicated RU or MRU comprises:
- applying a same rotation value on all data tones in a respective section of the two or more sections of each duplicated RU or MRU;
- and
- applying a respective mask sequence corresponding to a number of duplications of the RU or MRU,
- wherein the wireless communication comprises either a non-orthogonal frequency-division multiple-access (non-OFDMA) communication or an orthogonal frequency-division multiple-access (OFDMA) communication,
- wherein, responsive to the wireless communication comprising the non-OFDMA communication, the respective mask sequence comprises one of:
- [1 1−1 1] responsive to duplication of two times (2×);
- [−1 1 1 −1 1 −1 1 1 −1 −1 −1 −1 1 −1 1 1 −1 −1] responsive to duplication of three times (3×);
- [1 1 1 1 −1 1 1 −1] responsive to duplication of four times (4×);
- [1 1 1 1 −1 1 1 1 −1 1 1 −1 1 −1 1 −1] responsive to duplication of eight timers (8×);
- and
- [1 1 −1 −1 1 −1 −1 1 1 −1 1 1 1 1 −1 1 −1 1] responsive to duplication of nine times (9×), and
- wherein, responsive to the wireless communication comprising the OFDMA communication, the respective mask sequence comprises one of:
- [1 1 −1 1] responsive to duplication of two times (2×) with a 52-tone RU (RU52) over a 106-tone RU (RU106) or [1 1 1 1 −1 1 1 −1] responsive to duplication of four times (4×) with a 26-tone RU (RU26) over the RU106;
- [1 1 −1 1] responsive to duplication of two times (2×) with the RU26 over the RU52;
- and
- [1 1 1 −1 −1 1 1 −1 1 −1 1 1] responsive to duplication of three times (3×) with an aggregate of the RU26 and the RU52 (MRU(26+52)).
22 more elements
Dependencies are inferred from the claim text.