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US 12,706,795 B2Granted
Communication method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsQi Feng, Yuanzhou Hu, Huang Huang, Xiaoyan Bi
Life of this patent
Estimating the term…
Abstract
A communication method and apparatus belonging to the NR or LTE field, to improve spectral efficiency of an ultra-high frequency band. The method includes: a first apparatus generates and sends a first signal. The first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation.
Claims26
A communication method implemented by a first apparatus, comprising:
- generating a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- sending the first signal,
- wherein the first signal is a signal obtained by performing deceleration modulation on the symbol based on extended Fourier transform, a quantity of rows in a matrix of the extended Fourier transform is greater than a quantity of columns in the matrix of the extended Fourier transform, the quantity of columns in the matrix of the extended Fourier transform is the same as a quantity of symbols, and the quantity of rows in the matrix of the extended Fourier transform is the same as a quantity of subcarriers.
1 more element
An apparatus, comprising:
- one or more processors configured to:
- generate a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- send the first signal,
- wherein the first signal is a signal obtained by performing deceleration modulation on the symbol based on a pulse shaping filter, and
- wherein the first signal, the pulse shaping filter, and the symbol meet the following relationship:
- s
-
- (
- t
- )
- =
- ∑
- n
- =
- -
- C
-
- P
- N
- -
- 1
- a
- nmodN
-
- g
-
- (
- t
- -
- α
-
- n
-
- T
- )
- ,
- wherein
- s(t) is the first signal, g(t) is an impulse response function of the pulse shaping filter, αn is an nth symbol, CP is an integer, n is an integer ranging from—CP to N-1, a value of α is greater than 1, T is a time interval between two adjacent symbols, and t is a time variable.
36 more elements
A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium comprises a computer program or instructions, and when the computer program or the instructions are run on a computer, cause the computer to:
- generate a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- send the first signal,
- wherein the first signal is a signal obtained by performing deceleration and spectrum shifting modulation on the symbol based on the pulse shaping filter, and
- wherein the first signal, the pulse shaping filter, and the symbol meet the following relationship:
- s
-
- (
- t
- )
- =
- ∑
- n
- =
- -
- CP
- N
- -
- 1
- a
- nmodN
-
- g
-
- (
- t
- -
- α
-
- n
-
- T
- )
-
- cos
-
- π
-
- (
- t
- -
- α
-
- nT
- )
- /
- T
- g
- ,
- wherein
- s(t) is the first signal, g(t) is an impulse response function of the pulse shaping filter, αn is an nth symbol, CP is an integer, n is an integer ranging from—CP to N-1, a value of α is greater than 1,T is a time interval between two adjacent symbols, t is a time variable, and Tg is pulse duration of the pulse shaping filter.
48 more elements
A communication method, wherein the method is applied to a first apparatus and the method comprises:
- generating a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- sending the first signal;
- wherein the first signal is a signal obtained by performing deceleration modulation on the symbol based on a pulse shaping filter;
- wherein the first signal, the pulse shaping filter, and the symbol meet the following relationship:
- s
-
- (
- t
- )
- =
- ∑
- n
- =
- -
- C
-
- P
- N
- -
- 1
- a
- nmodN
-
- g
-
- (
- t
- -
- α
-
- n
-
- T
- )
- ,
- wherein
- s(t) is the first signal, g(t) is an impulse response function of the pulse shaping filter, αn is an nth symbol, CP is an integer, n is an integer ranging from—CP to N-1, a value of α is greater than 1, T is a time interval between two adjacent symbols, and t is a time variable.
35 more elements
A communication method, wherein the method is applied to a first apparatus and the method comprises:
- generating a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- sending the first signal;
- wherein the first signal is a signal obtained by performing deceleration and spectrum shifting modulation on the symbol based on the pulse shaping filter;
- wherein the first signal, the pulse shaping filter, and the symbol meet the following relationship:
- s
-
- (
- t
- )
- =
- ∑
- n
- =
- -
- CP
- N
- -
- 1
- a
- nmodN
-
- g
-
- (
- t
- -
- α
-
- n
-
- T
- )
-
- cos
-
- π
-
- (
- t
- -
- α
-
- nT
- )
- /
- T
- g
- ,
- wherein
- s(t) is the first signal, g(t) is an impulse response function of the pulse shaping filter, αn is an nth symbol, CP is an integer, n is an integer ranging from—CP to N-1, a value of α is greater than 1,T is a time interval between two adjacent symbols, t is a time variable, and Tg is pulse duration of the pulse shaping filter.
48 more elements
An apparatus, comprising:
- one or more processors configured to:
- generating a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- sending the first signal;
- wherein the first signal is a signal obtained by performing deceleration and spectrum shifting modulation on the symbol based on the pulse shaping filter;
- wherein the first signal, the pulse shaping filter, and the symbol meet the following relationship:
- s
-
- (
- t
- )
- =
- ∑
- n
- =
- -
- CP
- N
- -
- 1
- a
- nmodN
-
- g
-
- (
- t
- -
- α
-
- n
-
- T
- )
-
- cos
-
- π
-
- (
- t
- -
- α
-
- nT
- )
- /
- T
- g
- ,
- wherein
- s(t) is the first signal, g(t) is an impulse response function of the pulse shaping filter, αn is an nth symbol, CP is an integer, n is an integer ranging from—CP to N-1, a value of α is greater than 1,T is a time interval between two adjacent symbols, t is a time variable, and Tg is pulse duration of the pulse shaping filter.
49 more elements
An apparatus, comprising:
- one or more processors configured to:
- generate a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- send the first signal,
- wherein the first signal is a signal obtained by performing deceleration modulation on the symbol based on extended Fourier transform, a quantity of rows in a matrix of the extended Fourier transform is greater than a quantity of columns in the matrix of the extended Fourier transform, the quantity of columns in the matrix of the extended Fourier transform is the same as a quantity of symbols, and the quantity of rows in the matrix of the extended Fourier transform is the same as a quantity of subcarriers.
2 more elements
A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium comprises a computer program or instructions, and when the computer program or the instructions are run on a computer, cause the computer to:
- generate a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- send the first signal,
- wherein the first signal is a signal obtained by performing deceleration modulation on the symbol based on extended Fourier transform, a quantity of rows in a matrix of the extended Fourier transform is greater than a quantity of columns in the matrix of the extended Fourier transform, the quantity of columns in the matrix of the extended Fourier transform is the same as a quantity of symbols, and the quantity of rows in the matrix of the extended Fourier transform is the same as a quantity of subcarriers.
1 more element
A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium comprises a computer program or instructions, and when the computer program or the instructions are run on a computer, cause the computer to:
- generate a first signal, wherein the first signal is a signal obtained by performing deceleration modulation on a symbol, and a time interval between two symbols that undergo deceleration modulation is greater than a time interval between the two symbols that do not undergo deceleration modulation;
- and
- send the first signal,
- wherein the first signal is a signal obtained by performing deceleration modulation on the symbol based on a pulse shaping filter;
- wherein the first signal, the pulse shaping filter, and the symbol meet the following relationship:
- s
-
- (
- t
- )
- =
- ∑
- n
- =
- -
- C
-
- P
- N
- -
- 1
- a
- nmodN
-
- g
-
- (
- t
- -
- α
-
- n
-
- T
- )
- ,
- wherein
- s(t) is the first signal, g(t) is an impulse response function of the pulse shaping filter, αn is an nth symbol, CP is an integer, n is an integer ranging from—CP to N-1, a value of α is greater than 1, T is a time interval between two adjacent symbols, and t is a time variable.
35 more elements
Dependencies are inferred from the claim text.