PREDICTION METHOD AND DECODING DEVICE FOR BANDWIDTH EXPANSION BAND SIGNAL

Abstract

Embodiments of the present invention provide a method for predicting a bandwidth extension frequency band signal and a decoding device. The method includes: demultiplexing a received bitstream to obtain a frequency domain signal; determining whether a highest frequency bin to which a bit is allocated of the frequency domain signal is less than a preset start frequency bin of a bandwidth extension frequency band; when it is less predicting an excitation signal of the bandwidth extension frequency band according to an excitation signal within a predetermined frequency band range of the frequency domain signal and the preset start frequency bin of the bandwidth extension frequency band; otherwise predicting the excitation signal of the bandwidth extension frequency band according to the excitation signal within the predetermined frequency band range of the frequency domain signal the preset start frequency bin of the bandwidth extension frequency band and the highest frequency bin to which a bit is allocated; and predicting the bandwidth extension frequency band signal according to the predicted excitation signal of the bandwidth extension frequency band and a frequency envelope of the bandwidth extension frequency band. The technical solutions of the embodiments of the present invention can effectively ensure continuity of predicted excitation signals that are of a bandwidth extension frequency band signal and between a former frame and a latter frame thereby ensuring auditory quality of a restored bandwidth extension frequency band signal.

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Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
4G,3G	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: Illustrative part: ---- Release: + -	No	Family Member
Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: Illustrative part: ---- Release: + -	No	Family Member
4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: Illustrative part: ---- Release: + -	No	Family Member
5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: Illustrative part: ---- Release: S2 TS Number: TS 123 502 Version No: Illustrative part: ---- Release: +1 -1	Yes	Family Member

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Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
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WO2014117484A1	4G,3G	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
WO2014117484A1	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
WO2014117484A1	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
WO2014117484A1	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
CN103971694A	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Basis Patent
CN103971694B	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Basis Patent
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EP2940685A4	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP2940685A4	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP2940685A4	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
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KR101602264B1	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
KR101602264B1	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
KR20150109460A	4G,3G	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
KR20150109460A	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
KR20150109460A	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
KR20150109460A	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
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US2015332688A1	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
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US9361904B2	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US9361904B2	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
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JP2016507781A	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
JP2016507781A	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
JP2016507781A	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
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JP6202545B2	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
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JP6202545B2	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
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US2016247513A1	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US2016247513A1	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US2016247513A1	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
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US9875749B2	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US9875749B2	4G,3G	23/10/2016	ISLD-201701-002	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
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US2018122393A1	Not Available	09/12/2014	ISLD-201412-013	HUAWEI	S1 TS Number: TS 126 445 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
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US2018122393A1	5G	19/03/2020	ISLD-202003-035	HUAWEI	S1 TS Number: TS 123 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 123 502 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
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