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US 12,132,570 B2Granted
Sequence-based signal transmission method and communication apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsMingxin Gong, Bingyu Qu
Life of this patent
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Abstract
A method includes: determining a first sequence based on a first parameter, a second parameter, and a third parameter, where the first sequence is determined based on the third parameter and a second sequence, the second sequence is determined based on the first parameter and the second parameter, the first parameter and the second parameter are root indexes of the second sequence, and the third parameter is a time domain cyclic shift value; and sending a signal based on the first sequence.
Claims20
A method for transmitting a signal, comprising:
- determining, by a first terminal device, a first sequence based on a first parameter, a second parameter, and a third parameter, wherein the first sequence is determined based on the third parameter and a second sequence, wherein the second sequence is determined based on the first parameter and the second parameter, wherein the first parameter and the second parameter are root indexes of the second sequence, and wherein the third parameter is a time domain cyclic shift value;
- and
- sending, by the first terminal device, the signal based on the first sequence, wherein
- an element in the second sequence, the first parameter, and the second parameter satisfy:
- x
- u
- 1
- ,
- u
- 2
- (
- n
- )
- =
- α
-
- e
- j
-
- 2
-
- π
-
- (
- u
- 1
- ×
- (
- (
- n
-
- m
-
- o
-
- d
-
- P
- )
- -
- u
- 2
- )
- 3
- P
- +
- φ
- )
- ,
- wherein
- u1 represents the first parameter;
- u2 represents the second parameter;
- xu1,u2 (n) represents an nth element in the second sequence;
- α is a non-zero complex number;
- φ is a real number;
- j represents a symbol of an imaginary number in a complex number;
- n mod P represents performing a modulo operation on n and P, wherein a value of n ranges from 0 to N−1, and N is a length of the first sequence;
- u1 is a positive integer less than or equal to P−1;
- u2 is a natural number less than or equal to P−1;
- and wherein P is a prime number, wherein P is a minimum prime number greater than or equal to N, or P is a maximum prime number less than or equal to N, or P is a minimum prime number greater than or equal to 2×N, or P is a maximum prime number less than or equal to 2×N.
57 more elements
A method for receiving a signal, comprising:
- determining, by a network device, a first sequence based on a first parameter, a second parameter, and a third parameter, wherein the first sequence is determined based on the third parameter and a second sequence, the second sequence is determined based on the first parameter and the second parameter, the first parameter and the second parameter are root indexes of the second sequence, and the third parameter is a time domain cyclic shift value;
- receiving, by the network device, a first signal;
- and
- determining, by the network device based on the first sequence and the first signal, whether the first signal comprises a signal generated based on the first sequence, wherein
- an element in the second sequence, the first parameter, and the second parameter satisfy:
- x
- u
- 1
- ,
- u
- 2
- (
- n
- )
- =
- α
-
- e
- j
-
- 2
-
- π
-
- (
- u
- 1
- ×
- (
- (
- n
-
- m
-
- o
-
- d
-
- P
- )
- -
- u
- 2
- )
- 3
- P
- +
- φ
- )
- ,
- wherein
- u1 represents the first parameter;
- u2 represents the second parameter;
- xu1,u2(n) represents an nth element in the second sequence;
- α is a non-zero complex number;
- φ is a real number;
- j represents a symbol of an imaginary number in a complex number;
- n mod P represents performing a modulo operation on n and P, wherein a value of n ranges from 0 to N−1, and N is a length of the first sequence;
- u1 is a positive integer less than or equal to P−1;
- u2 is a natural number less than or equal to P−1;
- and P is a prime number, wherein P is a minimum prime number greater than or equal to N, or P is a maximum prime number less than or equal to N, or P is a minimum prime number greater than or equal to 2×N, or P is a maximum prime number less than or equal to 2×N.
58 more elements
An apparatus, comprising:
- at least one processor;
- and
- one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor, cause the apparatus to:
- determine a first sequence based on a first parameter, a second parameter, and a third parameter, wherein the first sequence is determined based on the third parameter and a second sequence, the second sequence is determined based on the first parameter and the second parameter, the first parameter and the second parameter are root indexes of the second sequence, and the third parameter is a time domain cyclic shift value;
- and
- send a signal based on the first sequence, wherein
- an element in the second sequence, the first parameter, and the second parameter satisfy:
- x
- u
- 1
- ,
- u
- 2
- (
- n
- )
- =
- α
-
- e
- j
-
- 2
-
- π
-
- (
- u
- 1
- ×
- (
- (
- n
-
- m
-
- o
-
- d
-
- P
- )
- -
- u
- 2
- )
- 3
- P
- +
- φ
- )
- ,
- wherein
- u1 represents the first parameter;
- u2 represents the second parameter;
- xu1,u2(n) represents an nth element in the second sequence;
- α is a non-zero complex number;
- φ is a real number;
- j represents a symbol of an imaginary number in a complex number;
- n mod P represents performing a modulo operation on n and P, wherein a value of n ranges from 0 to N−1, and N is a length of the first sequence;
- u1 is a positive integer less than or equal to P−1;
- u2 is a natural number less than or equal to P−1;
- and P is a prime number, wherein P is a minimum prime number greater than or equal to N, or P is a maximum prime number less than or equal to N, or P is a minimum prime number greater than or equal to 2×N, or P is a maximum prime number less than or equal to 2×N.
60 more elements
Dependencies are inferred from the claim text.