Communication method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsXinqian Xie, Zhonglong Wang
Life of this patent
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Abstract
This application belongs to the field of communication technologies, and provides a communication method and apparatus, to improve sensing performance while communication performance of a communication system is ensured. In the method, when elements in [b(n)] meet a first feature, a second feature, a third feature, or a fourth feature, an optimal compromise between communication and sensing performance can be implemented, so that the sensing performance can be improved while the communication performance of the communication system is ensured, that is, an optimal frequency shaping coefficient is adaptively selected to achieve joint optimal performance of communication and sensing.
Claims20
A communication method, wherein the method comprises:
- determining [c(n)] based on [a(n)] and [b(n)], wherein [a(n)], [b(n)], and [c(n)] each comprise N elements, n∈{1, . . . , N}, and N is a positive integer;
- and
- generating a first signal based on [c(n)], and sending the first signal, wherein
- the elements in [a(n)] satisfy
- a
-
- (
- n
- )
- =
- e
- -
- j
-
- 2
-
- π
- N
-
- (
- α
-
- n
- 2
- +
- β
-
- n
- +
- γ
- )
- ,
- and α, β, and γ are predetermined coefficients;
- and the elements in [b(n)] meet a first feature, a second feature, a third feature, or a fourth feature, wherein the first feature is that when n is less than k, b(n) is less than b(n+1), or when n is greater than k, b(n) is less than b(n−1), the second feature is that when n is less than k, b(n) is greater than b(n+1), or when n is greater than k, b(n) is greater than b(n−1), the third feature is that when n is less than k1, b(n) is greater than b(n+1), when n is greater than or equal to k1 and less than k2, b(n) is less than b(n+1), when n is greater than or equal to k2 and less than k3, b(n) is greater than b(n+1), or when n is greater than k3, b(n) is less than b(n+1), the fourth feature is that when n is less than k1, b(n) is less than b(n+1), when n is greater than or equal to k1 and less than k2, b(n) is greater than b(n+1), when n is greater than or equal to k2 and less than k3, b(n) is less than b(n+1), or when n is greater than k3, b(n) is greater than b(n+1), and k, k1, k2, and k3 are all positive integers greater than 1 and less than N.
A communication method, wherein the method comprises:
- receiving a first signal;
- and
- demodulating the first signal, wherein
- the first signal is determined based on [c(n)], [c(n)] is determined based on [a(n)] and [b(n)], [a(n)], [b(n)], and [c(n)] each comprise N elements, n∈{1, . . . , N}, and N is a positive integer;
- the elements in [a(n)] satisfy
- a
-
- (
- n
- )
- =
- e
- -
- j
-
- 2
-
- π
- N
-
- (
- α
-
- n
- 2
- +
- β
-
- n
- +
- γ
- )
- ,
- and α, β, and γ are predetermined coefficients;
- and the elements in [b(n)] meet a first feature, a second feature, a third feature, or a fourth feature, wherein the first feature is that when n is less than k, b(n) is less than b(n+1), or when n is greater than k, b(n) is less than b(n−1), the second feature is that when n is less than k, b(n) is greater than b(n+1), or when n is greater than k, b(n) is greater than b(n−1), the third feature is that when n is less than k1, b(n) is greater than b(n+1), when n is greater than or equal to k1 and less than k2, b(n) is less than b(n+1), when n is greater than or equal to k2 and less than k3, b(n) is greater than b(n+1), or when n is greater than k3, b(n) is less than b(n+1), the fourth feature is that when n is less than k1, b(n) is less than b(n+1), when n is greater than or equal to k1 and less than k2, b(n) is greater than b(n+1), when n is greater than or equal to k2 and less than k3, b(n) is less than b(n+1), or when n is greater than k3, b(n) is greater than b(n+1), and k, k1, k2, and k3 are all positive integers greater than 1 and less than N.
A communication system, wherein the communication system comprises a first apparatus comprises:
- a processor, configured to:
- determine [c(n)] based on [a(n)] and [b(n)], wherein [a(n)], [b(n)], and [c(n)] each comprise N elements, n∈{1, . . . , N}, and Nis a positive integer;
- and generate a first signal based on [c(n)];
- and
- a transceiver, configured to send the first signal, wherein
- the elements in [a(n)] satisfy
- a
-
- (
- n
- )
- =
- e
- -
- j
-
- 2
-
- π
- N
-
- (
- α
-
- n
- 2
- +
- β
-
- n
- +
- γ
- )
- ,
- and α, β, and γ are predetermined coefficients;
- and the elements in [b(n)] meet a first feature, a second feature, a third feature, or a fourth feature, wherein the first feature is that when n is less than k, b(n) is less than b(n+1), or when n is greater than k, b(n) is less than b(n−1), the second feature is that when n is less than k, b(n) is greater than b(n+1), or when n is greater than k, b(n) is greater than b(n−1), the third feature is that when n is less than k1, b(n) is greater than b(n+1), when n is greater than or equal to k1 and less than k2, b(n) is less than b(n+1), when n is greater than or equal to k2 and less than k3, b(n) is greater than b(n+1), or when n is greater than k3, b(n) is less than b(n+1), the fourth feature is that when n is less than k1, b(n) is less than b(n+1), when n is greater than or equal to k1 and less than k2, b(n) is greater than b(n+1), when n is greater than or equal to k2 and less than k3, b(n) is less than b(n+1), or when n is greater than k3, b(n) is greater than b(n+1), and k, k1, k2, and k3 are all positive integers greater than 1 and less than N;
- wherein the communication system comprises a second apparatus comprises:
- a transceiver, configured to receive a first signal;
- and
- a processor, configured to demodulate the first signal, wherein
- the first signal is determined based on [c(n)], [c(n)] is determined based on [a(n)] and [b(n)], [a(n)], [b(n)], and [c(n)] each comprise N elements, n∈{1, . . . , N}, and N is a positive integer;
- the elements in [a(n)] satisfy
- a
-
- (
- n
- )
- =
- e
- -
- j
-
- 2
-
- π
- N
-
- (
- α
-
- n
- 2
- +
- β
-
- n
- +
- γ
- )
- ,
- and α, β, and γ are predetermined coefficients;
- and the elements in [b(n)] meet a first feature, a second feature, a third feature, or a fourth feature, wherein the first feature is that when n is less than k, b(n) is less than b(n+1), or when n is greater than k, b(n) is less than b(n−1), the second feature is that when n is less than k, b(n) is greater than b(n+1), or when n is greater than k, b(n) is greater than b(n−1), the third feature is that when n is less than k1, b(n) is greater than b(n+1), when n is greater than or equal to k1 and less than k2, b(n) is less than b(n+1), when n is greater than or equal to k2 and less than k3, b(n) is greater than b(n+1), or when n is greater than k3, b(n) is less than b(n+1), the fourth feature is that when n is less than k1, b(n) is less than b(n+1), when n is greater than or equal to k1 and less than k2, b(n) is greater than b(n+1), when n is greater than or equal to k2 and less than k3, b(n) is less than b(n+1), or when n is greater than k3, b(n) is greater than b(n+1), and k, k1, k2, and k3 are all positive integers greater than 1 and less than N.
Dependencies are inferred from the claim text.