Communication method and device

Abstract

The embodiment of the invention discloses a communication method and device. The method comprises: a first network device generating a first signal according to a first sequence, the first sequence being a product of a second sequence and a third sequence; the second sequence carries data; the ith element in the second sequence corresponds to the ith subcarrier in the N subcarriers in the first frequency domain resource, the ith element in the third sequence corresponds to the ith subcarrier in the first frequency domain resource, and the ith element in the first sequence is borne on the ith subcarrier in the first frequency domain resource; the first frequency domain resource comprises M non-overlapped sub-frequency domain resources, the third sequence comprises M subsequences, the tth subsequence in the M subsequences corresponds to the tth sub-frequency domain resource in the M sub-frequency domain resources, and the tth subsequence in the M subsequences meets the tth relation in the M relations; and sending the first signal. According to the embodiment of the invention, the range finding precision of the sensing fusion signal is improved.

Description

[0001] This application is a divisional application. The original application has the application number 202311016823.9 and the original application date is August 11, 2023. The entire contents of the original application are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0003] Communication-sensing integration is a key technology in next-generation wireless communication networks. It aims to merge wireless communication and sensing functions into a single system, utilizing the various propagation characteristics of wireless signals to achieve sensing functions such as target localization, detection, imaging, and identification. This allows for the acquisition of information about the surrounding physical environment, the enhancement of communication capabilities, and a better user experience. For example, network devices transmit sensing signals and receive echo signals to obtain information such as the position and velocity of targets in the environment. The echo signal is the signal generated by the reflection of the sensing signal from a target in the environment. The time delay of the echo signal relative to the transmitted sensing signal reflects the distance to the target, and the Doppler shift of the echo signal relative to the transmitted sensing signal reflects the velocity of the target.

[0004] When network devices need to communicate with terminal devices and sense targets in the environment, they need to send communication-sensing fusion signals for both communication and sensing. How to design communication-sensing fusion signals that can be used for both communication and sensing is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a communication method and apparatus that can not only increase the root mean square bandwidth of the fusion signal, thereby improving the ranging accuracy of the fusion signal, but also reduce the false alarm probability of the distance spectrum obtained by using the fusion signal, as the peak-to-side-lobe ratio is lower.

[0006] In a first aspect, embodiments of this application provide a communication method, which is applied to a first network device, or a chip or circuit configured in the first network device, comprising: A first signal is generated based on a first sequence, wherein the first sequence is the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0; The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M. Send the first signal.

[0007] The first signal is a fusion signal. The fusion signal is generated by multiplying a second data-carrying sequence by a segmented third sequence. Different forms of the third sequence can be designed to give the generated fusion signal different properties to meet various sensing and communication needs. For example, when the third sequence is concave, the root mean square bandwidth of the fusion signal can be increased, thereby improving its ranging accuracy. When the third sequence includes convex subsequences, the peak-to-sidelobe ratio of the distance spectrum sensed using this fusion signal is lower, thus reducing the false alarm probability.

[0008] In one possible design, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence. That is, the third sequence can be a symmetric sequence.

[0009] In another possible design, at least one of the M subsequences has elements with the same value, ensuring that the values ​​of elements in at least one subsequence of the third sequence are constant.

[0010] In another possible design, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0011] In this design, the third sequence is a concave sequence. Generating the synesthetic fusion signal through the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0012] In another possible design, the number of subcarriers included in the first sub-frequency domain resource divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.25; or, the number of subcarriers included in the third sub-frequency domain resource divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.25; or, the sum of the number of subcarriers included in the first and third sub-frequency domain resources divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.5.

[0013] In another possible design, the first value is equal to the third value.

[0014] In another possible design, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the third sub-frequency domain resource.

[0015] In another possible design, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0016] In this design, the third sequence is a concave sequence. Generating the synesthetic fusion signal through the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0017] In another possible design, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the fifth sub-frequency domain resource, and / or, the number of subcarriers included in the second sub-frequency domain resource is equal to the number of subcarriers included in the fourth sub-frequency domain resource.

[0018] In another possible design, the first value is equal to the third value.

[0019] In another possible design, the k-th element of the third sequence is less than or equal to the maximum value of the k1-th and k2-th elements of the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. In this design, the third sequence is a concave sequence. Generating a synesthetic fusion signal using the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0020] In another possible design, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence of the M subsequences satisfies the third relation of the M relations, wherein the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. It can be seen that the first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0021] In this design, the third sequence includes an upwardly convex subsequence. A synesthetic fusion signal is generated through the third sequence. The distance spectrum obtained by using this synesthetic fusion signal has a lower peak-to-sidelobe ratio, thereby reducing the false alarm probability.

[0022] In another possible design, the sum of the squares of all elements in the third sequence is equal to N.

[0023] In another possible design, the first signal is used for sensing, or for sensing and channel measurement, or for sensing and channel estimation, or for sensing and data transmission. Sensing and communication are achieved through the first signal.

[0024] In another possible design, the echo signal of the first signal is received. The first network device sends the first signal and receives the echo signal of the first signal, and senses information such as the position and speed of the target based on the echo signal. The echo signal is generated by the first signal being reflected from the target in the environment.

[0025] In another possible design, a first message is sent to a second network device and / or a terminal device. This first message indicates parameter information for the third sequence, including multiple sets of parameters used to determine the third sequence. These parameters can be used to determine multiple relationships. By sending the first message, the second network device and / or the terminal device can determine the third sequence. The terminal device can obtain the communication data or communication reference signal sequence carried by the second sequence based on the third sequence, thereby enabling communication between the first network device and the terminal device. Furthermore, when the first and second network devices know the second sequence, different third sequences can be used to multiply the second sequence to obtain a first sequence. Different first signals can be generated using different first sequences for sensing, thus adapting to different sensing performance requirements and enabling communication between the first network device and the first terminal device.

[0026] Secondly, embodiments of this application provide a communication method, which is applied to a second network device, or a chip or circuit configured in the second network device, including: The echo signal of the first signal is received, the first signal is generated according to the first sequence, the first sequence is the product of the second sequence and the third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0027] The first signal is a fusion signal. The fusion signal is generated by multiplying a second data-carrying sequence by a segmented third sequence. Different forms of the third sequence can give the generated fusion signal different properties to meet various sensing and communication needs. For example, when the third sequence is concave, the root mean square bandwidth of the fusion signal can be increased, thereby improving the ranging accuracy. When the third sequence includes convex subsequences, the peak-to-sidelobe ratio of the distance spectrum sensed using this fusion signal is lower, thus reducing the false alarm probability.

[0028] In one possible design, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence. That is, the third sequence is a symmetric sequence.

[0029] In another possible design, at least one of the M subsequences has elements with the same value, ensuring that the values ​​of elements in at least one subsequence of the third sequence are constant.

[0030] In another possible design, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0031] In this design, the third sequence is a concave sequence. Generating the synesthetic fusion signal through the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0032] In another possible design, the number of subcarriers included in the first sub-frequency domain resource divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.25; or, the number of subcarriers included in the third sub-frequency domain resource divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.25; or, the sum of the number of subcarriers included in the first and third sub-frequency domain resources divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.5.

[0033] In another possible design, the first value is equal to the third value.

[0034] In another possible design, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the third sub-frequency domain resource.

[0035] In another possible design, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0036] In this design, the third sequence is a concave sequence. Generating the synesthetic fusion signal through the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0037] In another possible design, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the fifth sub-frequency domain resource, and / or the number of subcarriers included in the second sub-frequency domain resource is equal to the number of subcarriers included in the fourth sub-frequency domain resource.

[0038] In another possible design, the first value is equal to the third value.

[0039] In another possible design, the k-th element of the third sequence is less than or equal to the maximum value of the k1-th and k2-th elements of the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. In this design, the third sequence is a concave sequence. Generating a synesthetic fusion signal using the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0040] In another possible design, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence of the M subsequences satisfies the third relation of the M relations, wherein the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. It can be seen that the first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0041] In this design, the third sequence includes an upwardly convex subsequence. A synesthetic fusion signal is generated through the third sequence. The distance spectrum obtained by using this synesthetic fusion signal has a lower peak-to-sidelobe ratio, thereby reducing the false alarm probability.

[0042] In another possible design, the sum of the squares of all elements in the third sequence is equal to N.

[0043] In another possible design, a first network device sends first information indicating parameter information for the third sequence. This parameter information includes multiple sets of parameters used to determine the third sequence. These parameters can be used to determine multiple relationships. A second network device determines the third sequence based on the first information. A second sequence is obtained by processing a first signal based on the third sequence. Different first sequences are obtained by multiplying the third sequence by the second sequence. First signals are generated using these different first sequences for sensing, thereby adapting to different sensing performance requirements.

[0044] In another possible design, the first signal is used for sensing, or for sensing and channel measurement, or for sensing and channel estimation, or for sensing and data transmission. Sensing and communication are achieved through the first signal.

[0045] Thirdly, embodiments of this application provide a communication method, which is applied to a first terminal device, or a chip or circuit configured in the first terminal device, including: A first signal is received, which is generated based on a first sequence, which is the product of a second sequence and a third sequence. The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0046] The first signal is a fusion signal. The fusion signal is generated by multiplying a second data-carrying sequence by a segmented third sequence. Different forms of the third sequence can be designed to give the generated fusion signal different properties to meet various sensing and communication needs. For example, when the third sequence is concave, the root mean square bandwidth of the fusion signal can be increased, thereby improving its ranging accuracy. When the third sequence includes convex subsequences, the peak-to-sidelobe ratio of the distance spectrum sensed using this fusion signal is lower, thus reducing the false alarm probability.

[0047] In one possible design, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence. That is, the third sequence is a symmetric sequence.

[0048] In another possible design, at least one of the M subsequences has elements with the same value, ensuring that the values ​​of elements in at least one subsequence of the third sequence are constant.

[0049] In another possible design, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0050] In this design, the third sequence is a concave sequence. Generating the synesthetic fusion signal through the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0051] In another possible design, the number of subcarriers included in the first sub-frequency domain resource divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.25; or, the number of subcarriers included in the third sub-frequency domain resource divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.25; or, the sum of the number of subcarriers included in the first and third sub-frequency domain resources divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.5.

[0052] In another possible design, the first value is equal to the third value.

[0053] In another possible design, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the third sub-frequency domain resource.

[0054] In another possible design, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0055] In this design, when the third sequence is a concave sequence, generating a synesthetic fusion signal through the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0056] In another possible design, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the fifth sub-frequency domain resource, and / or the number of subcarriers included in the second sub-frequency domain resource is equal to the number of subcarriers included in the fourth sub-frequency domain resource.

[0057] In another possible design, the first value is equal to the third value.

[0058] In another possible design, the k-th element of the third sequence is less than or equal to the maximum value of the k1-th and k2-th elements of the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. In this design, the third sequence is a concave sequence. Generating a synesthetic fusion signal using the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0059] In another possible design, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence of the M subsequences satisfies the third relation of the M relations, wherein the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. It can be seen that the first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0060] In this design, the third sequence includes an upwardly convex subsequence. A synesthetic fusion signal is generated through the third sequence. The distance spectrum obtained by using this synesthetic fusion signal has a lower peak-to-sidelobe ratio, thereby reducing the false alarm probability.

[0061] In another possible design, the sum of the squares of all elements in the third sequence is equal to N.

[0062] In another possible design, a first terminal device receives first information sent by a first network device. This first information indicates parameter information for the third sequence, including multiple sets of parameters used to determine the third sequence. These parameters can be used to determine multiple relationships. Based on the first information, a second sequence is obtained from the first signal. The third sequence is determined using its parameter information, and the first signal is then demodulated to obtain the second sequence. This allows the acquisition of communication data or a communication reference sequence carried by the second sequence, thereby enabling communication between the first network device and the first terminal device.

[0063] In another possible design, the first signal is used for sensing, or for sensing and channel measurement, or for sensing and channel estimation, or for sensing and data transmission. Sensing and communication are achieved through the first signal.

[0064] Fourthly, embodiments of this application provide a communication method, which is applied to a second terminal device, or a chip or circuit configured in a second terminal device, including: The echo signal of the first signal is received, the first signal is generated according to the first sequence, the first sequence is the product of the second sequence and the third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0065] The first signal is a fusion signal. The fusion signal is generated by multiplying a second data-carrying sequence by a segmented third sequence. Different forms of the third sequence can be designed to give the generated fusion signal different properties to meet various sensing and communication needs. For example, when the third sequence is concave, the root mean square bandwidth of the fusion signal can be increased, thereby improving its ranging accuracy. When the third sequence includes convex subsequences, the peak-to-sidelobe ratio of the distance spectrum sensed using this fusion signal is lower, thus reducing the false alarm probability.

[0066] In one possible design, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence. That is, the third sequence can be a symmetric sequence.

[0067] In another possible design, at least one of the M subsequences has elements with the same value, ensuring that the values ​​of elements in at least one subsequence of the third sequence are constant.

[0068] In another possible design, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0069] In this design, the third sequence is a concave sequence. Generating the synesthetic fusion signal through the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0070] In another possible design, the number of subcarriers included in the first sub-frequency domain resource divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.25; or, the number of subcarriers included in the third sub-frequency domain resource divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.25; or, the sum of the number of subcarriers included in the first and third sub-frequency domain resources divided by the total number of subcarriers N included in the first frequency domain resource is less than 0.5.

[0071] In another possible design, the first value is equal to the third value.

[0072] In another possible design, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the third sub-frequency domain resource.

[0073] In another possible design, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0074] In this design, the third sequence is a concave sequence. Generating the synesthetic fusion signal through the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0075] In another possible design, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the fifth sub-frequency domain resource, and / or the number of subcarriers included in the second sub-frequency domain resource is equal to the number of subcarriers included in the fourth sub-frequency domain resource.

[0076] In another possible design, the first value is equal to the third value.

[0077] In another possible design, the k-th element of the third sequence is less than or equal to the maximum value of the k1-th and k2-th elements of the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. In this design, the third sequence is a concave sequence. Generating a synesthetic fusion signal using the third sequence can increase the root mean square bandwidth of the synesthetic fusion signal, thereby improving the ranging accuracy of the synesthetic fusion signal.

[0078] In another possible design, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence of the M subsequences satisfies the third relation of the M relations, wherein the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. It can be seen that the first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0079] In this design, the third sequence includes an upwardly convex subsequence. A synesthetic fusion signal is generated through the third sequence. The distance spectrum obtained by using this synesthetic fusion signal has a lower peak-to-sidelobe ratio, thereby reducing the false alarm probability.

[0080] In another possible design, the sum of the squares of all elements in the third sequence is equal to N.

[0081] In another possible design, a first network device sends first information indicating parameter information for the third sequence. This parameter information includes multiple sets of parameters used to determine the third sequence. These parameters can be used to determine multiple relationships. A second terminal device determines the third sequence based on the first information. A second sequence is obtained by processing a first signal based on the third sequence. Different first sequences are obtained by multiplying the third sequence by the second sequence. First signals are generated using these different first sequences for sensing, thereby adapting to different sensing performance requirements.

[0082] In another possible design, the first signal is used for sensing, or for sensing and channel measurement, or for sensing and channel estimation, or for sensing and data transmission. Sensing and communication are achieved through the first signal.

[0083] Fifthly, embodiments of this application provide a communication device, which is a first network device, or a unit or module within a first network device, comprising: The processing module is used to generate a first signal based on a first sequence, wherein the first sequence is the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0; The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M. A transmitting module is used to transmit the first signal.

[0084] In another possible design, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0085] In another possible design, at least one of the M subsequences has elements with the same value.

[0086] In another possible design, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0087] In another possible design, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0088] In another possible design, the sending module is further configured to send first information to a second network device and / or a terminal device, the first information indicating parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

[0089] In another possible design, the first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

[0090] In another possible design, the device further includes a receiving module for receiving the echo signal of the first signal.

[0091] The operation and beneficial effects of this communication device can be found in the method and beneficial effects described in the first aspect above, and will not be repeated here.

[0092] Sixthly, embodiments of this application provide a communication device, which is a second network device, or a unit or module within a second network device, comprising: A receiving module is used to receive the echo signal of a first signal, the first signal being generated according to a first sequence, the first sequence being the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0093] In another possible design, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0094] In another possible design, at least one of the M subsequences has elements with the same value.

[0095] In another possible design, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0096] In another possible design, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0097] In another possible design, the receiving module is further configured to receive first information sent by the first network device, the first information being used to indicate parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

[0098] In another possible design, the first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

[0099] The operation and beneficial effects of this communication device can be found in the method and beneficial effects described in the second aspect above, and will not be repeated here.

[0100] In a seventh aspect, embodiments of this application provide a communication device, which is a first terminal device, or a unit or module within a first terminal device, comprising: A receiving module is configured to receive a first signal, which is generated based on a first sequence, wherein the first sequence is the product of a second sequence and a third sequence. The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0101] In another possible design, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0102] In another possible design, at least one of the M subsequences has elements with the same value.

[0103] In another possible design, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0104] In another possible design, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0105] In another possible design, the receiving module is further configured to receive first information sent by the first network device, the first information being used to indicate parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above and the M mentioned above; A processing module is configured to obtain the second sequence from the first signal based on the first information.

[0106] The operation and beneficial effects of this communication device can be found in the method and beneficial effects described in the third aspect above, and will not be repeated here.

[0107] Eighthly, embodiments of this application provide a communication device, which is a second terminal device, or a unit or module within a second terminal device, comprising: A receiving module is used to receive the echo signal of a first signal, the first signal being generated according to a first sequence, the first sequence being the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0108] In another possible design, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0109] In another possible design, at least one of the M subsequences has elements with the same value.

[0110] In another possible design, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0111] In another possible design, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0112] In another possible design, the receiving module is further configured to receive first information sent by the first network device, the first information being used to indicate parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

[0113] In another possible design, the first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

[0114] The operation and beneficial effects of this communication device can be found in the method and beneficial effects described in the fourth aspect above, and will not be repeated here.

[0115] Ninthly, this application provides a communication device comprising a processor and a memory, the memory being used to store a computer program; the processor being used to execute the computer program stored in the memory to cause the communication device to perform the method as described in any one of the first aspects.

[0116] In a tenth aspect, this application provides a communication device comprising a processor and a memory for storing a computer program; the processor is configured to execute the computer program stored in the memory to cause the communication device to perform the method as described in any one of the second aspects.

[0117] Eleventhly, this application provides a communication device comprising a processor and a memory, the memory being used to store a computer program; the processor being used to execute the computer program stored in the memory to cause the communication device to perform the method as described in any one of the third aspects.

[0118] In a twelfth aspect, this application provides a communication device comprising a processor and a memory for storing a computer program; the processor is configured to execute the computer program stored in the memory to cause the communication device to perform the method as described in any one of the fourth aspects.

[0119] In a thirteenth aspect, this application provides a computer-readable storage medium for storing a computer program that, when executed, causes the method described in any one of the first to fourth aspects to be implemented.

[0120] In a fourteenth aspect, this application provides a computer program product including a computer program that, when executed, causes the method described in any one of the first to fourth aspects to be implemented.

[0121] In a fifteenth aspect, embodiments of this application provide a communication system, which includes a first network device, a second network device, a first terminal device, and a second terminal device. The first network device is used to perform the steps in the first aspect, the second network device is used to perform the steps in the second aspect, the first terminal device is used to perform the steps in the third aspect, and the second terminal device is used to perform the steps in the fourth aspect. Attached Figure Description

[0122] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0123] Figure 1(a) is a schematic diagram of a sensing scene provided in an embodiment of this application; Figure 1(b) is a schematic diagram of another sensing scenario provided in an embodiment of this application; Figure 1(c) is a schematic diagram of another sensing scenario provided in an embodiment of this application; Figure 2This is a flowchart illustrating a communication method provided in an embodiment of this application; Figure 3 This is a schematic diagram of a third sequence provided in this application; Figure 4 This is a schematic diagram of a sequence processing procedure provided in an embodiment of this application; Figure 5 This is a schematic diagram of a third sequence provided in an embodiment of this application; Figure 6 This is a schematic diagram of another third sequence provided in an embodiment of this application; Figure 7 This is a schematic diagram of another third sequence provided in an embodiment of this application; Figure 8 This is a schematic diagram of another third sequence provided in an embodiment of this application; Figure 9 This is a schematic diagram of another third sequence provided in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application; Figure 11 This is a schematic diagram of another communication device provided in an embodiment of this application; Figure 12 This is a schematic diagram of the structure of a network device provided in an embodiment of this application; Figure 13 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application. Detailed Implementation

[0124] The following explains the key terms used in this application: Perception: Perception refers to the detection of parameters of targets in the physical environment, such as the target's position and velocity. It can be understood as a radar detection system detecting targets by emitting electromagnetic waves and analyzing the echo signals reflected from objects. Perception can also be called detection.

[0125] Sensing signal: A signal used to sense (or detect) a target (or object). Sensing signals are also called detection signals, linear frequency modulated signals, radar signals, radar sensing signals, radar detection signals, or environmental sensing signals, etc. Sensing signals can be pulse signals or signals from wireless communication systems. For example, a sensing signal can be an orthogonal frequency division multiplexing (OFDM) signal obtained by modulating a specific sequence on a subcarrier. This specific sequence can be any of the following sequences: Zadoff-Chu sequence (ZC sequence), pseudo-random sequence, predefined sequence, etc. Pseudo-random sequences include any of the following sequences: longest linear feedback shift register sequence (m-sequence), Gold sequence, etc. Predefined sequences can be random data symbols, for example, random data symbols modulated by quadrature phase shift keying (QPSK), quadrature amplitude modulation (QAM), etc.

[0126] Communication-sensing fusion signal: also known as a fusion signal, it is a signal used for both communication and sensing. The communication use can be understood as the signal carrying the communication data or communication reference signal sequence that needs to be transmitted between communication devices.

[0127] Communication signals: Signals transmitted between communication devices for communication purposes, including signals transmitted between network devices and terminal devices. Communication signals are, for example, signals carried on the physical downlink shared channel (PDSCH).

[0128] The communication method provided in this application can be applied to fourth-generation (4G) communication systems, such as long-term evolution (LTE) systems, as well as fifth-generation (5G) communication systems, such as 5G new radio (NR) systems, or various communication systems evolving after 5G, such as sixth-generation (6G) systems. The method provided in this application can also be applied to Bluetooth systems, wireless fidelity (Wi-Fi) systems, long-range radio (LoRa) systems, or vehicle-to-everything (V2X) systems. The method provided in this application can also be applied to satellite communication systems, wherein the satellite communication system can be integrated with the aforementioned communication systems.

[0129] This application can be applied to the following scenarios: As shown in Figure 1(a), which is a schematic diagram of a sensing scenario provided in an embodiment of this application, a network device transmits a sensing signal or a fusion signal, and receives the echo signal generated by the reflection of the sensing signal or fusion signal from a target in the environment, thereby sensing information such as the target's position and speed. It is worth noting that the target and the terminal device in the environment can be the same device or different devices. For example, when the target and the terminal device in the environment are the same device, network device A sends a fusion signal for sensing, and the fusion signal also carries communication data or a communication reference signal sequence that the network device needs to transmit to the terminal device. When the target and the terminal device in the environment are different devices, the network device sends a sensing signal to sense the target, and simultaneously sends communication signals using frequency division multiplexing or space division multiplexing to communicate with the terminal device.

[0130] As shown in Figure 1(b), which is a schematic diagram of another sensing scenario provided in an embodiment of this application, network device A transmits a sensing signal or a fusion signal, and another network device B receives the echo signal generated by the reflection of the sensing signal or fusion signal from a target in the environment, thereby sensing information such as the target's position and speed. It should be noted that the target and the terminal device in the environment can be the same device or different devices. For example, when the target and the terminal device in the environment are the same device, network device A sends a fusion signal for sensing, and the fusion signal carries the communication data or communication reference signal sequence that the network device needs to transmit to the terminal device. When the target and the terminal device in the environment are different devices, network device A sends a sensing signal to sense the target, and simultaneously sends communication signals using frequency division multiplexing or space division multiplexing to communicate with the terminal device.

[0131] As shown in Figure 1(c), which is a schematic diagram of another sensing scenario provided in an embodiment of this application, network device A transmits a fusion signal, and terminal device B receives the echo signal generated by the reflection of the fusion signal from a target in the environment, thereby sensing information such as the target's position and speed. It should be noted that the target in the environment and terminal device B are different devices. Network device A sends the fusion signal for sensing, and the fusion signal carries the communication data or communication reference signal sequence that network device A needs to transmit to terminal device B.

[0132] As shown in the figure above, the communication system described in this application includes network equipment and terminal equipment. Wherein: A network device is a network-side device with wireless transceiver capabilities. For example, such a network device can be a base station, an evolved NodeB (eNodeB), a next-generation NodeB (gNB) in a 5G mobile communication system, a transmission reception point (TRP), a 3GPP-evolved base station, an access node in a WiFi system, a wireless relay node, or a wireless backhaul node. A network device can contain one or more co-located or non-co-located transmission and reception points. Furthermore, a network device can include a central unit (CU), a distributed unit (DU), or both CU and DU. This allows multiple network functional entities to implement some of the functions of the wireless access network device. These network functional entities can be network elements within hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform). In vehicle-to-everything (V2X) technology, the network device can be a roadside unit (RSU). Multiple network devices in a communication system can be base stations of the same type or different types. Base stations can communicate with terminal devices, or they can communicate with terminal devices through relay stations. The network device in this application can also be a device with sensing capabilities, capable of emitting sensing signals and receiving and processing reflected signals from targets in the environment. In the embodiments of this application, the communication device used to implement the network device's functions can be a network device, a network device with some base station functions, or a device capable of supporting the network device in implementing these functions, such as a chip system, which can be installed within the network device.

[0133] Multiple network devices in a communication system can be of the same or different types. The network device in this application can also be a device with sensing capabilities. For example, the network device can transmit sensing signals and receive and process echo signals reflected by targets in the environment.

[0134] In this embodiment, the network device can be a device in a wireless network. For example, a network device can be a device deployed in a wireless access network to provide wireless communication functions for terminal devices. For example, a network device can be a radio access network (RAN) node that connects terminal devices to a wireless network, and can also be called an access network device. In this embodiment, the communication device used to implement the functions of the network device can be a network device, a network device with some base station functions, or a device that can support the network device in implementing the functions, such as a chip system. This device can be installed in the network device or used in conjunction with the network device.

[0135] A terminal device is a user-side device with wireless transceiver capabilities. It can be a fixed device, mobile device, handheld device (e.g., mobile phone), wearable device, in-vehicle device, or a wireless device (e.g., communication module, modem, or chip system) built into the aforementioned devices. Terminal devices are used to connect people, things, and machines, and can be widely used in various scenarios, such as: cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine / machine-type communications (M2M / MTC) communication, Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical care, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, drones, robots, and other scenarios. For example, a terminal device can be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a surveillance camera in intelligent transportation and smart cities, or a communication device on a drone, etc. Terminal devices are sometimes referred to as user equipment (UE), user terminal, user device, user unit, user station, terminal, access terminal, access station, UE station, remote station, mobile device, or wireless communication device, etc.

[0136] In the system shown in this application, the network device can sense a target by sending sensing signals or fusion signals. The target can be any tangible object in the environment capable of reflecting electromagnetic waves, such as mountains, forests, or buildings, and can also include mobile objects such as vehicles, drones, pedestrians, and terminal devices. The target can also be referred to as a sensed target, a detected target, a sensed object, a detected object, or a sensed device, etc., and this application does not limit the terminology used in its embodiments.

[0137] Network devices can use communication signals from existing 5G communication systems as sensing fusion signals. The communication signals in 5G communication systems are generated based on OFDM modulation, and their generation formula is: [Formula omitted for brevity]. On port p, the subcarrier configuration is... Numbered l Time-continuous signal of OFDM symbol The formula is:

[0138] in, For frequency domain numbered k and time domain numbered k Antenna port p and subcarrier spacing are configured as follows: The value on the resource element (RE) carries the communication data or reference signal sequence. It is worth noting that the value on the RE or subcarrier numbered k of this communication signal is... ; Indicates the size of the resource grid; This indicates the number of REs contained in each resource block; denoted by , j represents the imaginary unit; t represents time; e represents the natural constant, which is the base of the natural logarithm function, with a value of approximately 2.718281828459045.

[0139] However, the communication signals in 5G communication systems are specifically designed for communication. When these signals are used as sensing fusion signals, their sensing performance may not meet the sensing requirements in different sensing scenarios. For example, in some sensing scenarios, higher ranging accuracy is required; in other sensing scenarios, higher false alarm performance is required. To address the above technical problems, embodiments of this application provide the following solutions.

[0140] Please see Figure 2 , Figure 2 This is a flowchart illustrating a communication method provided in an embodiment of this application. The method includes, but is not limited to, the following steps: S201, the first network device generates a first signal according to a first sequence, wherein the first sequence is the product of a second sequence and a third sequence.

[0141] The second sequence comprises N second elements, any two of which may be the same or different. The second sequence carries data, or its elements carry data. This data may be communication data or a communication reference sequence that the first network device needs to send to the terminal device. For example, the first network device may convert a medium access control (MAC) layer transport block (containing bits of 0 and 1) into the second sequence. This conversion process includes at least one of the following steps: channel coding, rate matching, scrambling, constellation mapping, discrete Fourier transform (DFT) precoding (optional), and multi-antenna precoding. Each element in the second sequence is a complex number containing a real part and an imaginary part.

[0142] The second sequence can be associated with / correspond to frequency domain resources, and it can also be associated with / correspond to time domain resources. For example, the second sequence corresponds to the first frequency domain resource of a certain symbol / code element. The second sequence is associated with the first frequency domain resource, which includes N subcarriers (or N REs). Further, the association of the i-th element of the second sequence with the i-th subcarrier of the first frequency domain resource can be understood as: the i-th element of the second sequence corresponds to the i-th subcarrier of the first frequency domain resource, or the i-th element of the second sequence is the value carried on the i-th subcarrier among the N subcarriers in the first frequency domain resource before the second sequence is multiplied by the third sequence. N is an integer greater than 1, and i is an integer greater than or equal to 1 and less than or equal to N.

[0143] For example, the first time-domain resource is a certain orthogonal frequency division multiplexing (OFDM) symbol, denoted as OFDM symbol. An OFDM symbol comprises multiple REs or subcarriers, which constitute the first frequency domain resource. The element numbered i in the second sequence is related to the element numbered i in the time domain. And the RE or subcarrier with frequency domain number i is associated.

[0144] The third sequence either carries no data or its elements carry no data. The third sequence comprises N elements greater than or equal to 0, where any two elements can be the same or different. The i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource. The third sequence can be understood as a window sequence; windowing the second sequence with the third sequence yields the first sequence. Windowing refers to multiplying the sequences element by element.

[0145] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence. That is, the third sequence can be a symmetrical sequence, for example, the first element is equal to the N-th element, the second element is equal to the (N-1)-th element, and so on.

[0146] In this embodiment, the first frequency domain resource includes M non-overlapping sub-frequency domain resources. Optionally, each sub-frequency domain resource includes one or more consecutive subcarriers (or one or more REs). The third sequence includes M sub-sequences, where the t-th sub-sequence corresponds to the t-th sub-frequency domain resource among the M sub-frequency domain resources, and the t-th sub-sequence satisfies the t-th relation among the M relations. It can be seen that the third sequence is a segmented sequence, and each sub-sequence is associated with a sub-frequency domain resource. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M. For example, if M=3, the first frequency domain resource includes 3 non-overlapping sub-frequency domain resources, and the third sequence includes 3 sub-sequences. The first sub-sequence among these 3 sub-sequences corresponds to the first sub-frequency domain resource among the 3 sub-frequency domain resources, and the elements in the first sub-sequence satisfy relation 1. The second subsequence of the three subsequences corresponds to the second sub-frequency domain resource of the three sub-frequency domain resources, and the elements in the second subsequence satisfy relation 2. The third subsequence of the three subsequences corresponds to the third sub-frequency domain resource of the three sub-frequency domain resources, and the elements in the third subsequence satisfy relation 3. M=4 or other values, and so on, will not be elaborated here. By designing different segmentation forms of the third sequence, the first signal generated based on the first sequence can meet the perception performance requirements of different perception scenarios.

[0147] It should be noted that the "relation" in the t-th relation among the M relations can be understood as a functional relation, a mapping relation, etc. For example, the elements of the t-th subsequence and the indices of the elements in the t-th subsequence satisfy a functional relation. This is the third sequence, which includes three subsequences. The first subsequence consists of sequences numbered 0 to... The elements of the first subsequence and the indices of the elements in the first subsequence satisfy a functional relationship. The second subsequence is the one numbered in the third sequence. to The elements of the second subsequence and the indices of the elements in the second subsequence satisfy a functional relationship. The third subsequence is the one numbered in the third sequence. to The elements of the third subsequence and the indices of the elements in the third subsequence satisfy a functional relationship. .

[0148] Specifically, the k-th element in the third sequence is less than or equal to the maximum value of the k1-th element and the k2-th element in the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. Figure 3 As shown, Figure 3 This is a schematic diagram of a third sequence provided in this application. Under the condition that the k-th element is less than or equal to the maximum value of the k1-th element and the k2-th element in the third sequence, the third sequence w[i] is a concave-shaped sequence. Windowing the second sequence with this concave-shaped third sequence to obtain the first sequence can improve the ranging accuracy of the sensing.

[0149] The first sequence comprises N first elements, where any two elements can be the same or different. "The first sequence is the product of the second and third sequences" means that the i-th element of the first sequence is equal to the product of the i-th element of the second and third sequences. The i-th element of the first sequence is carried on the i-th subcarrier in the first frequency domain resource.

[0150] It should be noted that, since the i-th element of the second sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element of the first sequence is the product of the i-th element of the second sequence and the i-th element of the third sequence, it can be assumed that the i-th element of the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element of the first sequence corresponds to the i-th subcarrier in the first frequency domain resource. Furthermore, to ensure that the power of the first and second sequences is equal, the sum of the squares of all elements in the third sequence is equal to N.

[0151] Specifically, after multiplying the i-th element of the second sequence by the i-th element of the third sequence to obtain the first sequence, the first network device can map the first sequence onto a first frequency domain resource. Furthermore, the i-th element of the first sequence can be mapped onto the i-th subcarrier in the first frequency domain resource. For example, if the first time domain resource is numbered... l OFDM symbol, denoted as OFDM symbol Mapping the i-th element of the first sequence to the i-th subcarrier in the first frequency domain resource can be understood as: the element numbered i in the first sequence is mapped to the subcarrier numbered i in the time domain. And the resource element with frequency domain number i, or the element with number i in the first sequence is carried on the resource element with time domain number i. And on the resource element with frequency domain number i, or, on the resource element with time domain number i The value of the resource element with frequency domain number i is the element with frequency domain number i in the first sequence. Then, an OFDM baseband signal is generated based on the first sequence mapped onto the first frequency domain resource. The expression for the OFDM baseband signal is:

[0152] in, Let b[z] be the OFDM baseband signal, and b[z] represent the element numbered z in the first sequence. This represents the number of subcarriers contained in the first frequency domain resource. denoted by , j represents the imaginary unit, t represents time, and e represents the natural constant, which is the base of the natural logarithm function, with a value of approximately 2.718281828459045.

[0153] Finally, the first network device can perform up-conversion and other processing on the OFDM baseband signal to generate the first signal. Depending on whether the first sequence carries data, the first signal can be a sensing fusion signal or a sensing signal.

[0154] Optionally, the second sequence may not carry data, or the elements of the second sequence may not carry data. If the second sequence carries data or its elements carry data, and the first sequence also carries data or its elements carry data, then the first signal is a synesthetic fusion signal. If the second sequence does not carry data or its elements do not carry data, and the first sequence also does not carry data or its elements carry data, then the first signal is a sensing signal.

[0155] For example, such as Figure 4 As shown, Figure 4 This is a schematic diagram of a sequence processing procedure provided in an embodiment of this application. The element numbered i in the second sequence is denoted as... The element numbered i in the first sequence is denoted as The element numbered i in the third sequence is denoted as First, the second sequence a[0], a[1], ..., a[N-1] is windowed using the third sequence to obtain the first sequence b[0], b[1], ..., b[N-1]. That is, the element numbered i in the second sequence is multiplied by the element numbered i in the third sequence to obtain the element numbered i in the first sequence. The element numbered i in the first sequence can be represented as: = Then, the first sequence b[0], b[1], ..., b[N-1] is subjected to inverse fast fourier transform (IFFT), and the first sequence after IFFT is subjected to parallel-to-serial conversion to obtain the OFDM baseband signal. Windowing can also be called frequency domain filtering. It is worth noting that if the process of generating the second sequence includes DFT precoding, the OFDM baseband signal can also become a discrete fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) baseband signal. Finally, the first signal is generated based on the OFDM baseband signal and transmitted through the antenna.

[0156] The following section details several forms of the third sequence: In this application, the first frequency domain resource includes M non-overlapping sub-frequency domain resources, each sub-frequency domain resource including one or more subcarriers. The third sequence includes M sub-sequences, each sub-sequence including one or more elements. The t-th sub-sequence among the M sub-sequences corresponds to the t-th sub-frequency domain resource among the M sub-frequency domain resources, and the t-th sub-sequence among the M sub-sequences satisfies the t-th relation among the M relations. Wherein, the starting frequency of the t1-th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2-th sub-frequency domain resource among the M sub-frequency domain resources, where t1 is an integer greater than or equal to 1 and less than M, and t2 is an integer greater than 1 and less than or equal to M, where t1 is less than t2.

[0157] Optionally, at least one of the M subsequences contained in the third sequence has the same value for all elements, that is, the value of the elements in at least one subsequence is constant.

[0158] When M=3, the first frequency domain resource includes the first sub-frequency domain resource, the second sub-frequency domain resource, and the third sub-frequency domain resource. The first sub-frequency domain resource consists of the first subcarrier to the third subcarrier in the first frequency domain resource. The first subcarrier, the second sub-frequency domain resource is the first sub-frequency domain resource. Subcarrier to the first The third subcarrier is the first sub-frequency domain resource in the first frequency domain resource. From the Nth subcarrier to the Nth subcarrier. Wherein, the The above All are integers greater than or equal to 1 and less than N. Smaller than the It can be seen that the starting frequency of the first sub-frequency domain resource is the frequency corresponding to the first subcarrier, and the starting frequency of the second sub-frequency domain resource is the frequency corresponding to the first subcarrier. The frequency corresponding to the 3rd subcarrier, the starting frequency of the 4th sub-frequency domain resource is the 3rd sub-frequency domain resource. The frequencies corresponding to each subcarrier. Therefore, the starting frequency of the first sub-frequency domain resource is less than the starting frequency of the second sub-frequency domain resource, and the starting frequency of the second sub-frequency domain resource is less than the starting frequency of the third sub-frequency domain resource. Furthermore, the first sub-sequence of the M sub-sequences corresponds to the first sub-frequency domain resource of the M sub-frequency domain resources, the second sub-sequence of the M sub-sequences corresponds to the second sub-frequency domain resource of the M sub-frequency domain resources, and the third sub-sequence of the M sub-sequences corresponds to the third sub-frequency domain resource of the M sub-frequency domain resources. Specifically, when M=3, the third sequence can include the following forms: In one optional manner, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the first relation is that all elements in the first subsequence have a first value. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein all elements in the second subsequence have a second value. The third subsequence of the M subsequences satisfies the third relation of the M relations, wherein all elements in the third subsequence have a third value.

[0159] Optionally, both the first value and the third value are greater than the second value.

[0160] Optionally, the number of subcarriers included in the first sub-frequency domain resource divided by the number N of all subcarriers included in the first frequency domain resource is less than 0.25; or, the number of subcarriers included in the third sub-frequency domain resource divided by the number N of all subcarriers included in the first frequency domain resource is less than 0.25; or, the sum of the number of subcarriers included in the first sub-frequency domain resource and the third sub-frequency domain resource divided by the number N of all subcarriers included in the first frequency domain resource is less than 0.5.

[0161] Optionally, the first value is equal to the third value.

[0162] Optionally, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the third sub-frequency domain resource.

[0163] For example, such as Figure 5 As shown, Figure 5This is a schematic diagram of a third sequence provided in an embodiment of this application. The first frequency domain resource is divided into three consecutive sub-frequency domain resources by a first frequency domain separator A and a second frequency domain separator B. The first frequency domain separator A and the second frequency domain separator B can be represented by subcarrier numbers, resource block (RB) numbers, or resource block group (RBG) numbers; this application does not impose any restrictions. Wherein, the first frequency domain separator A is less than the second frequency domain separator B. The portion of the first frequency domain resource with a number less than the first frequency domain separator A is called the first sub-frequency domain resource; the portion of the first frequency domain resource with a number greater than or equal to the first frequency domain separator A and less than or equal to the second frequency domain separator B is called the second sub-frequency domain resource; and the portion of the first frequency domain resource with a number greater than the second frequency domain separator B is called the third sub-frequency domain resource. The first subsequence corresponds to the first sub-frequency domain resource, and the first subsequence satisfies the first relation: all elements in the first subsequence have the first value. The second subsequence corresponds to the second sub-frequency domain resource, and the second subsequence satisfies the second relation: all elements in the second subsequence have the second value. The third subsequence corresponds to the third sub-frequency domain resource, and the third subsequence satisfies the third relation: all elements in the third subsequence have the third value. Examples of the first, second, and third values ​​are given below.

[0164] The first and third values ​​can both be equal to The second value can be equal to 0.4082. The first frequency domain resource includes 792 subcarriers. The first sub-frequency domain resource includes subcarriers numbered 0 to 179, that is, 180 subcarriers. The second sub-frequency domain resource includes subcarriers numbered 180 to 611, that is, 432 subcarriers. The third sub-frequency domain resource includes subcarriers numbered 612 to 791, that is, 180 subcarriers. It can be verified that the first sub-frequency domain resource includes 180 subcarriers. The value of the first sub-frequency domain resource (180 subcarriers) divided by the number of subcarriers in the first frequency domain resource (792 subcarriers) is approximately 0.227, which is less than 0.25.

[0165] Alternatively, both the first and third values ​​can be equal to 2, and the second value can be equal to 0.577. The first frequency domain resource includes 792 subcarriers, and the first sub-frequency domain resource includes subcarriers numbered 0 to 71, meaning the first sub-frequency domain resource includes 72 subcarriers. The second sub-frequency domain resource includes subcarriers numbered 72 to 719, meaning the second sub-frequency domain resource includes 648 subcarriers. The third sub-frequency domain resource includes subcarriers numbered 720 to 791, meaning the third sub-frequency domain resource includes 72 subcarriers. It can be verified that the first sub-frequency domain resource includes 72 subcarriers, and the value of dividing the number of subcarriers in the first sub-frequency domain resource (72) by the number of subcarriers in the first frequency domain resource (792) is approximately 0.091, which is less than 0.25.

[0166] Alternatively, the first and third values ​​can both be equal to The second value can be equal to 0.6476. The first frequency domain resource includes 792 subcarriers. The first sub-frequency domain resource includes subcarriers numbered 0 to 23, meaning the first sub-frequency domain resource includes 24 subcarriers. The second sub-frequency domain resource includes subcarriers numbered 24 to 767, meaning the second sub-frequency domain resource includes 744 subcarriers. The third sub-frequency domain resource includes subcarriers numbered 768 to 791, meaning the third sub-frequency domain resource includes 24 subcarriers. It can be verified that the first sub-frequency domain resource includes 24 subcarriers. The value of the first sub-frequency domain resource including 24 subcarriers divided by the number of subcarriers in the first frequency domain resource (792) is approximately 0.030, which is less than 0.25.

[0167] In another implementation, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence of the M subsequences satisfies the third relation of the M relations, wherein the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, where k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. It can be seen that the first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0168] Optionally, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the third sub-frequency domain resource.

[0169] For example, such as Figure 6 As shown, Figure 6 This is a schematic diagram of another third sequence provided in an embodiment of this application. The first frequency domain resource is divided into three consecutive sub-frequency domain resources by a first frequency domain separator A and a second frequency domain separator B. The first frequency domain separator A and the second frequency domain separator B can be represented by subcarrier numbers, resource block (RB) numbers, or resource block group (RBG) numbers; this application does not impose any restrictions. Wherein, the first frequency domain separator A is less than the second frequency domain separator B. The portion of the first frequency domain resource with a number less than the first frequency domain separator A is called the first sub-frequency domain resource; the portion of the first frequency domain resource with a number greater than or equal to the first frequency domain separator A and less than or equal to the second frequency domain separator B is called the second sub-frequency domain resource; and the portion of the first frequency domain resource with a number greater than the second frequency domain separator B is called the third sub-frequency domain resource. The first subsequence is associated with the first sub-frequency domain resource and is a monotonically decreasing sequence. The second subsequence is associated with the second sub-frequency domain resource and is a convex sequence. The third subsequence is associated with the third sub-frequency domain resource and is a monotonically increasing sequence.

[0170] In another implementation, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the first relation is that the values ​​of all elements in the first subsequence are first values. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, where k is the index of the element in the third subsequence within the third sequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, whereby the value of each element in the third subsequence is a third value.

[0171] The polynomial function can be expressed as: .in, It is a constant. As the independent variable, The dependent variable is . "The values ​​of the elements in the second subsequence satisfy..." "The polynomial function of the square" refers to... Substituting the square of x into x, the value of the element with index k is... .

[0172] Optionally, the first value is equal to the third value.

[0173] Optionally, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the third sub-frequency domain resource.

[0174] Optionally, the element with index i in the third sequence is equal to the element with index Ni-1. For example, when N=9, the first subsequence includes the element with index 0, index 1, and index 2 in the third sequence. The second subsequence includes the element with index 3, index 4, and index 5 in the third sequence. The third subsequence includes the element with index 6, index 7, and index 8 in the third sequence. All elements in the first subsequence are 1, all elements in the third subsequence are 1, the element with index 0 is the same as the element with index 8, the element with index 1 is the same as the element with index 7, and the element with index 2 is the same as the element with index 6. The element with index 3 satisfies (3-(9-1) / 2)=-1, and the element with index 5 satisfies (5-(9-1) / 2)=1. Both have the same value calculated by the polynomial function of square. It can be seen that the third sequence is a symmetrical sequence.

[0175] For example, such as Figure 7 As shown, Figure 7 This is a schematic diagram of another third sequence provided in an embodiment of this application. The first frequency domain resource is divided into three consecutive sub-frequency domain resources by a first frequency domain separator A and a second frequency domain separator B. The first frequency domain separator A and the second frequency domain separator B can be represented by subcarrier numbers, RB numbers, or RBG numbers; this application does not impose any restrictions. Wherein, the first frequency domain separator A is less than the second frequency domain separator B. The portion of the first frequency domain resource with a number less than the first frequency domain separator A is called the first sub-frequency domain resource; the portion of the first frequency domain resource with a number greater than or equal to the first frequency domain separator A and less than or equal to the second frequency domain separator B is called the second sub-frequency domain resource; and the portion of the first frequency domain resource with a number greater than the second frequency domain separator B is called the third sub-frequency domain resource. The first sub-sequence corresponds to the first sub-frequency domain resource, and the first sub-sequence satisfies the first relation: the value of each element in the first sub-sequence is a first value. The second subsequence corresponds to the second sub-frequency domain resource, and the second subsequence satisfies the second relation: the values ​​of the elements in the second subsequence satisfy... The polynomial function of the square, the third subsequence corresponds to the third sub-frequency domain resource, the third subsequence satisfies the third relation, the third relation: the value of each element in the third subsequence is the third value. Among them, the The polynomial function of the square is the functional relation. The values ​​of the elements in the second subsequence satisfy The function relationship is as follows: k is the index of an element in the second subsequence within the third sequence. That is, for an element with index k in the third sequence that is also in the second subsequence, the value of that element is... Where d0, d1, or d2 are parameters, d0 is greater than 0, d1 is greater than or equal to 0, and d2 is greater than 0. For example, the values ​​of the parameters in the function are: d0 = 0.545, d1 = 912.20, d2 = 339.93. Or, d0 = 0.545, d1 = 1164.52, d2 = 820.97. Or, d0 = 0.545, d1 = 1416.84, d2 = 1302.00.

[0176] It should be noted that the value of the first frequency domain separator can be 0 (the subcarrier number), and the value of the second frequency domain separator can be N-1 (the subcarrier number). In this case, the first and third sub-frequency domain resources are empty sets, and the third sequence is determined solely by the aforementioned polynomial function.

[0177] In another implementation, the first frequency domain resource is divided into three consecutive sub-frequency domain resources by a first frequency domain separator A and a second frequency domain separator B. The first frequency domain separator A and the second frequency domain separator B can be represented by subcarrier numbers, RB numbers, or RBG numbers; this application does not impose any restrictions. Wherein, the first frequency domain separator A is less than the second frequency domain separator B. The portion of the first frequency domain resource with a number less than the first frequency domain separator A is called the first sub-frequency domain resource; the portion of the first frequency domain resource with a number greater than or equal to the first frequency domain separator A and less than or equal to the second frequency domain separator B is called the second sub-frequency domain resource; and the portion of the first frequency domain resource with a number greater than the second frequency domain separator B is called the third sub-frequency domain resource.

[0178] The first subsequence corresponds to the first sub-frequency domain resource. The first subsequence among the M subsequences satisfies the first relation among the M relations, whereby the values ​​of all elements in the first subsequence are first values. The second subsequence corresponds to the second sub-frequency domain resource. The second subsequence among the M subsequences satisfies the second relation among the M relations, whereby the values ​​of all elements in the second subsequence satisfy... The functional relationship is defined as follows: k is the index of the element in the second subsequence within the third sequence. All are parameters, the Less than 0, the Greater than 0, the Greater than 0, The third subsequence corresponds to the third sub-frequency domain resource. The third subsequence among the M subsequences satisfies the third relation among the M relations. The third relation is that the values ​​of the elements in the third subsequence are all third values.

[0179] Optionally, the first value is equal to the third value.

[0180] Optionally, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the third sub-frequency domain resource.

[0181] It should be noted that the value of the first frequency domain separator can be 0 (the subcarrier number), and the value of the second frequency domain separator can be N-1 (the subcarrier number). In this case, the first and third sub-frequency domain resources are empty sets, and the third sequence is determined solely by the above functional relationship.

[0182] When M=5, the first frequency domain resource includes the first sub-frequency domain resource, the second sub-frequency domain resource, the third sub-frequency domain resource, the fourth sub-frequency domain resource, and the fifth sub-frequency domain resource. The first sub-frequency domain resource consists of the first subcarrier to the fifth subcarrier in the first frequency domain resource. The first subcarrier, the second sub-frequency domain resource is the first sub-frequency domain resource. Subcarrier to the first The third subcarrier is the first sub-frequency domain resource in the first frequency domain resource. Subcarrier to the first The fourth subcarrier is the first sub-frequency domain resource in the first frequency domain resource. Subcarrier to the first The 5th sub-frequency domain resource is the 1st subcarrier in the first frequency domain resource. From the Nth subcarrier to the Nth subcarrier. Wherein, the The above The above and stated All are integers greater than or equal to 1 and less than N. Smaller than the The Smaller than the The Smaller than the It can be seen that the starting frequency of the first sub-frequency domain resource is the frequency corresponding to the first subcarrier, and the starting frequency of the second sub-frequency domain resource is the frequency corresponding to the first subcarrier. The frequency corresponding to the 3rd subcarrier, the starting frequency of the 4th sub-frequency domain resource is the 3rd sub-frequency domain resource. The frequency corresponding to the 4th subcarrier, the starting frequency of the 4th sub-frequency domain resource is the 4th sub-frequency domain resource. The frequency corresponding to the 5th subcarrier, the starting frequency of the 5th sub-frequency domain resource is the 5th sub-frequency domain resource. The frequencies corresponding to each subcarrier. Therefore, the starting frequency of the first sub-frequency domain resource is less than the starting frequency of the second sub-frequency domain resource, the starting frequency of the second sub-frequency domain resource is less than the starting frequency of the third sub-frequency domain resource, the starting frequency of the third sub-frequency domain resource is less than the starting frequency of the fourth sub-frequency domain resource, and the starting frequency of the fourth sub-frequency domain resource is less than the starting frequency of the fifth sub-frequency domain resource.

[0183] Furthermore, the first subsequence of the M subsequences corresponds to the first sub-frequency domain resource of the M sub-frequency domain resources, the second subsequence of the M subsequences corresponds to the second sub-frequency domain resource of the M sub-frequency domain resources, the third subsequence of the M subsequences corresponds to the third sub-frequency domain resource of the M sub-frequency domain resources, the fourth subsequence of the M subsequences corresponds to the fourth sub-frequency domain resource of the M sub-frequency domain resources, and the fifth subsequence of the M subsequences corresponds to the fifth sub-frequency domain resource of the M sub-frequency domain resources. Specifically, when M=5, the third sequence can include the following forms: In one implementation, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the first relation is that all elements in the first subsequence have a first value. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein all elements in the second subsequence have a value of 1. The third subsequence of the M subsequences satisfies the third relation of the M relations, wherein all elements in the third subsequence have a second value. The fourth subsequence of the M subsequences satisfies the fourth relation of the M relations, wherein all elements in the fourth subsequence have a value of 1. The fifth subsequence of the M subsequences satisfies the fifth relation of the M relations, wherein all elements in the fifth subsequence have a third value.

[0184] Optionally, both the first value and the third value are greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0185] Optionally, the first value is equal to the third value.

[0186] Optionally, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the fifth sub-frequency domain resource, and / or, the number of subcarriers included in the second sub-frequency domain resource is equal to the number of subcarriers included in the fourth sub-frequency domain resource.

[0187] For example, such as Figure 8 As shown, Figure 8 This is a schematic diagram of another third sequence provided in an embodiment of this application. The first frequency domain resource is divided into five consecutive sub-frequency domain resources by a first frequency domain separator A, a second frequency domain separator B, a third frequency domain separator C, and a fourth frequency domain separator D. The frequency domain separators can be represented by subcarrier numbers, RB numbers, or RBG numbers; this application does not impose any restrictions. Wherein, the first frequency domain separator A is less than the second frequency domain separator B, the second frequency domain separator B is less than the third frequency domain separator C, and the third frequency domain separator C is less than the fourth frequency domain separator D. The portion of the first frequency domain resource with a number less than the first frequency domain separator point A is called the first sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the first frequency domain separator point A and less than the second frequency domain separator point B is called the second sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the second frequency domain separator point B and less than the third frequency domain separator point C is called the third sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the third frequency domain separator point C and less than the fourth frequency domain separator point D is called the fourth sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the fourth frequency domain separator point D is called the fifth sub-frequency domain resource.

[0188] The M subsequences are as follows: the first subsequence corresponds to the first sub-frequency domain resource; the first subsequence satisfies the first relation among the M relations, whereby all elements in the first subsequence have a first value. The second subsequence corresponds to the second sub-frequency domain resource; the second subsequence satisfies the second relation among the M relations, whereby all elements in the second subsequence have a value of 1. The third subsequence corresponds to the third sub-frequency domain resource; the third subsequence satisfies the third relation among the M relations, whereby all elements in the first subsequence have a second value. The fourth subsequence corresponds to the fourth sub-frequency domain resource; the fourth subsequence satisfies the fourth relation among the M relations, whereby all elements in the fourth subsequence have a value of 1. The fifth subsequence corresponds to the fifth sub-frequency domain resource. The fifth subsequence among the M subsequences satisfies the fifth relation among the M relations. The values ​​of the elements in the fifth subsequence are all third values, the first value and the third value are both greater than 1, and the second value is less than 1.

[0189] In another implementation, the first subsequence of the M subsequences satisfies the first relation of the M relations, wherein the first relation is that all elements in the first subsequence have a first value. The second subsequence of the M subsequences satisfies the second relation of the M relations, wherein all elements in the second subsequence have a value of 1. The third subsequence of the M subsequences satisfies the third relation of the M relations, wherein the third relation is that all elements in the third subsequence have a first value. The polynomial function of the square of , please refer to the previous description for an explanation of polynomial functions. k is the index of the element in the third subsequence within the third sequence. The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, where the value of each element in the fourth subsequence is 1. The fifth subsequence among the M subsequences satisfies the fifth relation among the M relations, where the value of each element in the fifth subsequence is a third value, and both the first value and the third value are greater than 1.

[0190] Optionally, the first value is equal to the third value.

[0191] Optionally, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the fifth sub-frequency domain resource, and / or, the number of subcarriers included in the second sub-frequency domain resource is equal to the number of subcarriers included in the fourth sub-frequency domain resource.

[0192] For example, such as Figure 9 As shown, Figure 9 This is a schematic diagram of another third sequence provided in an embodiment of this application. The first frequency domain resource is divided into five consecutive sub-frequency domain resources by a first frequency domain separator A, a second frequency domain separator B, a third frequency domain separator C, and a fourth frequency domain separator D. The frequency domain separators can be represented by subcarrier numbers, RB numbers, or RBG numbers; this application does not impose any restrictions. Wherein, the first frequency domain separator A is less than the second frequency domain separator B, the second frequency domain separator B is less than the third frequency domain separator C, and the third frequency domain separator C is less than the fourth frequency domain separator D. The portion of the first frequency domain resource with a number less than the first frequency domain separator point A is called the first sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the first frequency domain separator point A and less than the second frequency domain separator point B is called the second sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the second frequency domain separator point B and less than the third frequency domain separator point C is called the third sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the third frequency domain separator point C and less than the fourth frequency domain separator point D is called the fourth sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the fourth frequency domain separator point D is called the fifth sub-frequency domain resource.

[0193] The first subsequence corresponds to the first sub-frequency domain resource and satisfies the first relation: all elements in the first subsequence have the first value. The second subsequence corresponds to the second sub-frequency domain resource and satisfies the second relation: all elements in the first subsequence have the first value. The third subsequence corresponds to the third sub-frequency domain resource and satisfies the third relation: all elements in the third subsequence have the first value. The polynomial function of the square of , the fourth subsequence corresponds to the fourth sub-frequency domain resource, the fourth subsequence satisfies the fourth relation, the fourth relation: the value of each element in the fourth subsequence is 1. The fifth subsequence corresponds to the fifth sub-frequency domain resource, the fifth subsequence satisfies the fifth relation, the fifth relation: the value of each element in the fifth subsequence is the third value. Both the first and third values ​​are greater than 1.

[0194] Among them, the The polynomial function of the square is the functional relation. The values ​​of the elements in the third subsequence satisfy The function relationship is defined as follows: k is the index of an element in the third subsequence within the third sequence. That is, for an element with index k in the third sequence that is also in the second subsequence, the value of that element is... Where d0, d1, or d2 are parameters, where d0 is greater than 0, d1 is greater than or equal to 0, and d2 is greater than 0.

[0195] In another implementation, the first frequency domain resource is divided into five consecutive sub-frequency domain resources by a first frequency domain separator A, a second frequency domain separator B, a third frequency domain separator C, and a fourth frequency domain separator D. The frequency domain separators can be represented by subcarrier numbers, RB numbers, or RBG numbers; this application does not impose any restrictions. Specifically, the first frequency domain separator A is less than the second frequency domain separator B, the second frequency domain separator B is less than the third frequency domain separator C, and the third frequency domain separator C is less than the fourth frequency domain separator D. The portion of the first frequency domain resource with a number less than the first frequency domain separator point A is called the first sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the first frequency domain separator point A and less than the second frequency domain separator point B is called the second sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the second frequency domain separator point B and less than the third frequency domain separator point C is called the third sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the third frequency domain separator point C and less than the fourth frequency domain separator point D is called the fourth sub-frequency domain resource. The portion of the first frequency domain resource with a number greater than or equal to the fourth frequency domain separator point D is called the fifth sub-frequency domain resource.

[0196] The first subsequence corresponds to the first sub-frequency domain resource. The first subsequence among the M subsequences satisfies the first relation among the M relations, whereby the value of each element in the first subsequence is a first value. The second subsequence corresponds to the second sub-frequency domain resource. The second subsequence among the M subsequences satisfies the second relation among the M relations, whereby the value of each element in the second subsequence is 1. The third subsequence corresponds to the third sub-frequency domain resource. The third subsequence among the M subsequences satisfies the third relation among the M relations, whereby the value of each element in the third subsequence satisfies a first value. Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0. The 4th subsequence corresponds to the 4th sub-frequency domain resource. The 4th subsequence among the M subsequences satisfies the 4th relation among the M relations. The 4th relation is that the value of each element in the 4th subsequence is 1. The 5th subsequence corresponds to the 5th sub-frequency domain resource. The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations. The value of each element in the 5th subsequence is a third value, and both the first value and the third value are greater than 1.

[0197] Optionally, the first value is equal to the third value.

[0198] Optionally, the number of subcarriers included in the first sub-frequency domain resource is equal to the number of subcarriers included in the fifth sub-frequency domain resource. And / or, the number of subcarriers included in the second sub-frequency domain resource is equal to the number of subcarriers included in the fourth sub-frequency domain resource.

[0199] It should be noted that the number M of sub-frequency domain resources contained in the first frequency domain resource or the number M of sub-sequences contained in the third sequence can also be equal to other values. When M is equal to other values, it is similar to the case where the number of sub-frequency domain resources or sub-sequences M=3 or M=5. As long as the third sequence is a segmented sequence, it is within the scope of protection of this application, which will not be elaborated here.

[0200] S202, the first network device sends the first signal.

[0201] S203, the first network device / second network device / second terminal device receives the echo signal.

[0202] The first signal can be a fusion signal of sensing or a fusion signal of communication and sensing, and can be used for sensing or communication. For example, the first signal can be used for sensing, or for sensing and channel measurement, or for sensing and channel estimation, or for sensing and downlink data transmission. The first signal transmitted by the first network device generates an echo signal after being reflected by a target in the environment. The first network device, or the second network device, or the second terminal device can receive the echo signal on the first frequency domain resource.

[0203] For example, if the first signal is a demodulation reference signal used for sensing, then this signal is used for sensing and channel estimation; or if the first signal is a channel state information reference signal used for sensing, then this signal is used for sensing and channel measurement; or if the first signal is a signal carried on the physical downlink shared channel (PDSCH) used for sensing, then this signal is used for sensing and downlink data transmission.

[0204] In the scenario shown in Figure 1(a), the first network device sends a first signal and receives an echo signal generated by a target reflected from the environment on a first frequency domain resource. The first network device can sense information such as the target's position and speed based on the first signal and the echo signal.

[0205] In the scenario shown in Figure 1(b), a first network device sends a first signal, and a first terminal device receives the first signal. The first signal carries data or a reference signal sequence sent by the first network device to the first terminal device. The reference signal sequence can be used for channel measurement, channel estimation, etc., thereby realizing the communication function of the first signal. Furthermore, the first network device sends the first signal, and a second network device receives the echo signal of the first signal, thereby realizing the sensing function of the first signal.

[0206] Optionally, the first network device may send first information to the second network device and / or the first terminal device, the first information being used to indicate parameter information of the third sequence. The second network device receives the first information and determines the third sequence based on the parameter information indicated by the first information. The first terminal device receives the first information and determines the third sequence based on the parameter information indicated by the first information. Furthermore, the first terminal device may obtain the second sequence from the first signal based on the third sequence. Further, the first terminal device may demodulate the first signal to obtain the first sequence, and then process the first sequence using the third sequence to obtain the second sequence.

[0207] The parameter information includes multiple sets of parameters used to determine the third sequence. These parameters can be used to determine multiple relationships. For example, as shown in Table 1, the first set of parameters includes: the first value a1, the second value b1, and the third value c1; the second set of parameters includes: the first value a2, the second value b2, and the third value c2; the third set of parameters includes: the first value a3, the second value b3, and the third value c3; and the fourth set of parameters includes: the first value a4, the second value b4, and the third value c4. Alternatively, as shown in Table 2, the first set of parameters includes: the first value a1, the third value b1, d0=e1, d1=e2, and d2=e3; the second set of parameters includes: the first value a2, the third value b2, d0=e4, d1=e5, and d2=e6; and the third set of parameters includes: the first value a3, the third value b3, d0=e7, d1=e8, and d2=e9. The fourth set of parameters includes: the first value a4, the third value b4, d0=e10, d1=e11, and d2=e12. Each set of parameters can be used to determine the above M (M=3) relationships, and different values ​​in each set of parameters can determine different relationships.

[0208] Table 1

[0209] Table 2

[0210] The parameter information includes at least one of the following: the first value, the second value, the third value, and the... The above The above And M. Optionally, the parameter information may further include the number of subcarriers or RBs occupied by each of the M sub-frequency domain resources. Alternatively, the parameter information may further include the number of subcarriers or RBs occupied by the first sub-frequency domain resource among the M sub-frequency domain resources. Alternatively, the parameter information may further include frequency domain separation points (e.g., the first frequency domain separation point A and the second frequency domain separation point B), etc.

[0211] For example, when M=3, the parameter information of the third sequence can include the following cases: first frequency domain separator A, second frequency domain separator B, first value, second value, and third value; or, first frequency domain separator A, second frequency domain separator B, first value, third value, and parameters d0, d1, and d2; or, first frequency domain separator A, second frequency domain separator B, first value, third value, and parameters d0, d1, and d2. .

[0212] When M=5, the parameter information of the third sequence can include the following cases: first frequency domain separator A, second frequency domain separator B, third frequency domain separator C, fourth frequency domain separator D, first value, second value, and third value; or, first frequency domain separator A, second frequency domain separator B, third frequency domain separator C, fourth frequency domain separator D, first value, third value, and parameters d0, d1, d2; or, first frequency domain separator A, second frequency domain separator B, third frequency domain separator C, fourth frequency domain separator D, first value, third value, and parameters. .

[0213] Optionally, the first information can be multiple bits, such as two or more bits. For example, as shown in Table 1, when the value of the first information is 00, it indicates that the first value a1, the second value b1, and the third value c1 of the first set are used. The value of each element in the first subsequence is a1, the value of each element in the second subsequence is b1, and the value of each element in the third subsequence is c1. When the value of the first information is 01, it indicates that the first value a2, the second value b2, and the third value c2 of the second set are used. The value of each element in the first subsequence is a2, the value of each element in the second subsequence is b2, and the value of each element in the third subsequence is c2, and so on. Other values ​​are similar and will not be illustrated here.

[0214] Optionally, the parameter information can be predefined or notified by higher-level signaling (such as RRC signaling). For example, as shown in Table 2, the predefined first set of parameters includes: the first value a1, the third value b1, d0=e1, d1=e2, d2=e3; the second set of parameters includes: the first value a2, the third value b2, d0=e4, d1=e5, d2=e6; the third set of parameters includes: the first value a3, the third value b3, d0=e7, d1=e8, d2=e9; and the fourth set of parameters includes: the first value a4, the third value b4, d0=e10, d1=e11, d2=e12. Multiple sets of parameters for the third sequence are notified via RRC signaling, and then the first information instructs the third sequence to use one or more sets of parameters.

[0215] The first terminal device receives a first signal, demodulates the first signal to obtain a first sequence, and determines the third sequence based on the received first information. Then, it processes the first sequence according to the third sequence to obtain a second sequence, and further obtains the communication data or communication reference sequence carried by the second sequence, thereby realizing communication between the first network device and the first terminal device. Optionally, the second network device can determine the third sequence based on the first information. When the first and second network devices know the second sequence, different third sequences can be designed, multiplied by the second sequence to obtain the first sequence, and different first signals can be generated through different first sequences for sensing, thus adapting to different sensing performance requirements and enabling communication between the first network device and the first terminal device.

[0216] In the scenario shown in Figure 1(c), the first network device sends a first signal, and the second terminal device can receive the first signal on a first frequency domain resource to obtain the communication data or communication reference signal sequence sent by the first network device to the second terminal device. That is, communication between the first network device and the second terminal device is performed using the first signal. The first signal carries the data or reference signal sequence sent by the first network device to the first terminal device. The reference signal sequence can be used for channel measurement, channel estimation, etc. Furthermore, the second terminal device can also receive echo signals generated by reflections from targets in the environment and estimate parameters such as the position and velocity of the targets in the environment based on the echo signals.

[0217] Optionally, the first network device may send first information to the second terminal device, the first information being used to indicate parameter information of the third sequence. The parameter information includes at least one of the following: the first value, the second value, the third value, and the... The above The above And M. Optionally, the parameter information may further include the number of subcarriers or RBs occupied by each of the M sub-frequency domain resources. Alternatively, the parameter information may further include the number of subcarriers or RBs occupied by the first sub-frequency domain resource among the M sub-frequency domain resources. Alternatively, the parameter information may further include frequency domain separation points (e.g., frequency domain separation point A and frequency domain separation point B), etc. Similar to the above, it will not be described further here.

[0218] The second terminal device determines the third sequence based on the first information, and processes the first signal based on the third sequence to obtain the second sequence. Then, it acquires the communication data or communication reference sequence carried by the second sequence to achieve communication between the first network device and the second terminal device. Optionally, the second terminal device receives the echo signal of the first signal for sensing. Different third sequences generate different first sequences, and thus different first signals. Since different first signals have different sensing performance, the second terminal device can also achieve different sensing performance when receiving the echo signal for sensing processing.

[0219] In this embodiment, a synesthetic fusion signal is generated by multiplying a second data-carrying sequence by a segmented third sequence. By designing different forms of the third sequence, the generated synesthetic fusion signal can have different properties to meet different sensing and communication requirements. For example, when the third sequence is a concave sequence, the root mean square bandwidth of the synesthetic fusion signal can be increased, thereby improving the ranging accuracy of the synesthetic fusion signal; when the third sequence includes an convex subsequence, the peak-to-sidelobe ratio of the distance spectrum sensed using the synesthetic fusion signal is lower, thereby reducing the false alarm probability of the sensing.

[0220] It is understood that, in the above-described method embodiments, the methods and operations implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used in the terminal device, and the methods and operations implemented by the network device can also be implemented by components (such as chips or circuits) that can be used in the network device.

[0221] This application embodiment can divide terminal devices or network devices into functional modules according to the above method examples. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or software functional modules. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the division of functional modules according to each function as an example.

[0222] The above, combined with Figure 2 The methods provided in the embodiments of this application are described in detail below. Figures 9 to 10 This application provides a detailed description of the communication device provided in its embodiments. It should be understood that the descriptions of the device embodiments correspond to the descriptions of the method embodiments; therefore, any content not described in detail here will be referred to the method embodiments above, and for the sake of brevity, will not be repeated here.

[0223] Please see Figure 10 , Figure 10This is a schematic diagram of a communication device provided in an embodiment of this application. The communication device may include a receiving module 1001, a processing module 1002, and a transmitting module 1003. The receiving module 1001 and the transmitting module 1003 can communicate with the outside world, and the processing module 1002 is used for processing, such as generating a first signal.

[0224] In one possible design, the communication device can implement the steps or processes corresponding to those executed by the first or second network device in the above method embodiments. For example, it can be the first or second network device, or a chip or circuit configured in the first or second network device. The receiving module 1001 and the transmitting module 1003 are used to perform the transmit / receive related operations of the first or second network device in the above method embodiments, and the processing module 1002 is used to perform the processing related operations of the first or second network device in the above method embodiments.

[0225] In one embodiment: Processing module 1002 is used to generate a first signal based on a first sequence, wherein the first sequence is the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0; The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M. The transmitting module 1003 is used to transmit the first signal.

[0226] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0227] Optionally, at least one of the M subsequences has elements with the same value.

[0228] Optionally, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0229] Optionally, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0230] Optionally, the kth element in the third sequence is less than or equal to the maximum value of the k1th element and the k2th element in the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2.

[0231] Optionally, the first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, where k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. The first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0232] Optionally, the sending module is further configured to send first information to a second network device and / or a terminal device, the first information indicating parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

[0233] Optionally, the first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

[0234] Optionally, the receiving module 1001 is used to receive the echo signal of the first signal.

[0235] In another embodiment: The receiving module 1001 is used to receive the echo signal of the first signal, the first signal being generated according to the first sequence, the first sequence being the product of the second sequence and the third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0236] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0237] Optionally, at least one of the M subsequences has elements with the same value.

[0238] Optionally, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0239] Optionally, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0240] Optionally, the kth element in the third sequence is less than or equal to the maximum value of the k1th element and the k2th element in the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2.

[0241] Optionally, the first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, where k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. The first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0242] Optionally, the receiving module 1001 is further configured to receive first information sent by the first network device, the first information being used to indicate parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

[0243] Optionally, the first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

[0244] It should be noted that the implementation of each module can also be referenced accordingly. Figure 2 The corresponding description of the method embodiments shown indicates that the methods and functions performed by the first network device or the second network device in the above embodiments are executed.

[0245] Please see Figure 11 , Figure 11 This is a schematic diagram of another communication device provided in an embodiment of this application. The communication device may include a receiving module 1101 and a processing module 1102. The receiving module 1101 can communicate with the outside, and the processing module 1102 is used for processing, such as demodulating the first signal.

[0246] In one possible design, the communication device can implement the steps or processes corresponding to those executed by the first or second terminal device in the above method embodiments. For example, it can be the first or second terminal device, or a chip or circuit configured in the first or second terminal device. The receiving module 1101 is used to perform the transmit / receive related operations of the first or second terminal device in the above method embodiments, and the processing module 1102 is used to perform the processing related operations of the first or second terminal device in the above method embodiments.

[0247] In one embodiment: Receiver module 1101 is configured to receive a first signal, the first signal being generated based on a first sequence, the first sequence being the product of a second sequence and a third sequence. The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0248] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0249] Optionally, at least one of the M subsequences has elements with the same value.

[0250] Optionally, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0251] Optionally, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0252] Optionally, the kth element in the third sequence is less than or equal to the maximum value of the k1th element and the k2th element in the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2.

[0253] Optionally, the first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, where k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. The first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0254] Optionally, the receiving module 1101 is further configured to receive first information sent by the first network device, the first information being used to indicate parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above and the M mentioned above; Processing module 1102 is used to obtain the second sequence from the first signal based on the first information.

[0255] In another embodiment: The receiving module 1101 is used to receive the echo signal of the first signal, the first signal being generated according to the first sequence, the first sequence being the product of the second sequence and the third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

[0256] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0257] Optionally, at least one of the M subsequences has elements with the same value.

[0258] Optionally, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

[0259] Optionally, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

[0260] Optionally, the kth element in the third sequence is less than or equal to the maximum value of the k1th element and the k2th element in the third sequence, where k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2.

[0261] Optionally, the first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the k1-th element of the first subsequence is greater than or equal to the k2-th element of the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the k-th element of the second subsequence is greater than or equal to the minimum value of the k1-th and k2-th elements of the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the k1-th element of the third subsequence is less than or equal to the k2-th element of the third subsequence. k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, where k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2. The first subsequence is a monotonically decreasing sequence, the second subsequence is a convex sequence, and the third subsequence is a monotonically increasing sequence.

[0262] Optionally, the receiving module 1101 is further configured to receive first information sent by the first network device, the first information being used to indicate parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

[0263] Optionally, the first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

[0264] It should be noted that the implementation of each module can also be referenced accordingly. Figure 2 The corresponding description of the method embodiments shown indicates that the methods and functions performed by the first terminal device or the second terminal device in the above embodiments are executed.

[0265] Figure 12 This is a schematic diagram of the structure of a network device provided in an embodiment of this application. The network device can be applied to the systems shown in Figures 1(a), 1(b), and 1(c) to perform the functions of the network device in the above method embodiments, or to implement the steps or processes performed by the network device in the above method embodiments.

[0266] like Figure 12 As shown, the network device includes a processor 1201 and a transceiver 1202. Optionally, the network device also includes a memory 1203. The processor 1201, transceiver 1202, and memory 1203 can communicate with each other via internal connections to transmit control and / or data signals. The memory 1203 stores computer programs, and the processor 1201 retrieves and runs the computer programs from the memory 1203 to control the transceiver 1202 to transmit and receive signals. Optionally, the network device may also include an antenna for transmitting uplink data or uplink control signaling output by the transceiver 1202 via wireless signals.

[0267] The processor 1201 and memory 1203 can be combined into a single processing device. The processor 1201 executes the program code stored in the memory 1203 to achieve the aforementioned functions. In specific implementations, the memory 1203 can be integrated into the processor 1201 or independent of it. The processor 1201 can be combined with... Figure 10 The corresponding processing module in [the system / processing module].

[0268] The transceiver 1202 described above can be used with Figure 10 The receiving module and transmitting module in the transceiver unit correspond to each other and can also be called a transceiver unit or transceiver module. The transceiver 1202 may include a receiver (or receiver circuit) and a transmitter (or transmitter circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0269] It should be understood that Figure 12 The network device shown can achieve Figure 2 The methods illustrated in the embodiments involve various processes of the network device. The operations and / or functions of each module in the network device are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the descriptions in the above method embodiments; to avoid repetition, detailed descriptions are appropriately omitted here.

[0270] The processor 1201 described above can be used to execute the actions implemented internally by the network device as described in the preceding method embodiments, while the transceiver 1202 can be used to execute the actions described in the preceding method embodiments of sending to or receiving data from the network device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.

[0271] The processor 1201 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor 1201 can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, etc. The communication bus 1204 can be a peripheral component interconnect standard PCI bus or an extended industry standard structure EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 12 The bus is represented by a single thick line, but this does not imply that there is only one bus or one type of bus. The communication bus 1204 is used to realize the connection and communication between these components. In this embodiment, the transceiver 1202 is used to communicate with other node devices for signaling or data. The memory 1203 may include volatile memory, such as nonvolatile random access memory (NVRAM), phase change RAM (PRAM), magnetoresistive RAM (MRAM), etc., and may also include nonvolatile memory, such as at least one disk storage device, electrically erasable programmable read-only memory (EEPROM), flash memory devices, such as NOR flash memory or NAND flash memory, semiconductor devices, such as solid state disk (SSD), etc. Optionally, the memory 1203 may also be at least one storage device located remotely from the aforementioned processor 1201. Optionally, the memory 1203 may also store a set of computer program code or configuration information. Optionally, the processor 1201 may also execute the program stored in the memory 1203. The processor can cooperate with the memory and the transceiver to execute any of the methods and functions of the network device in the above-described embodiments.

[0272] Figure 13 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application. The terminal device can be applied to the systems shown in Figures 1(a), 1(b), and 1(c) to perform the functions of the terminal device in the above method embodiments, or to implement the steps or processes performed by the terminal device in the above method embodiments.

[0273] like Figure 13As shown, the terminal device includes a processor 1301 and a transceiver 1302. Optionally, the terminal device also includes a memory 1303. The processor 1301, transceiver 1302, and memory 1303 can communicate with each other via internal connections to transmit control and / or data signals. The memory 1303 stores computer programs, and the processor 1301 retrieves and runs the computer programs from the memory 1303 to control the transceiver 1302 to transmit and receive signals. Optionally, the terminal device may also include an antenna for transmitting uplink data or uplink control signaling output by the transceiver 1302 via wireless signals.

[0274] The processor 1301 and memory 1303 can be combined into a single processing device. The processor 1301 executes the program code stored in the memory 1303 to achieve the aforementioned functions. In specific implementations, the memory 1303 can be integrated into the processor 1301 or independent of it. The processor 1301 can be combined with... Figure 11 The corresponding processing module in [the system / processing module].

[0275] The transceiver 1302 described above can be used with Figure 11 The corresponding receiving module can also be called a transceiver unit or transceiver module. The transceiver 1302 may include a receiver (or receiver circuit) and a transmitter (or transmitter circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0276] It should be understood that Figure 13 The terminal device shown can achieve Figure 2 The methods illustrated in the embodiments involve various processes of the terminal device. The operations and / or functions of each module in the terminal device are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the descriptions in the above method embodiments; to avoid repetition, detailed descriptions are appropriately omitted here.

[0277] The processor 1301 described above can be used to execute the actions implemented internally by the terminal device as described in the preceding method embodiments, while the transceiver 1302 can be used to execute the actions described in the preceding method embodiments of sending to or receiving data from the terminal device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.

[0278] The processor 1301 can be any of the processors mentioned above. The communication bus 1304 can be a PCI bus (interconnection standard for peripheral components) or an EISA bus (extended industry standard structure). The bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, Figure 13The bus is represented by a single thick line, but this does not imply that there is only one bus or one type of bus. The communication bus 1304 is used to implement communication between these components. In this embodiment, the transceiver 1302 is used for signaling or data communication with other devices. The memory 1303 can be any of the types of memory mentioned above. Optionally, the memory 1303 can also be at least one storage device located remotely from the aforementioned processor 1301. The memory 1303 stores a set of computer program code or configuration information, and the processor 1301 executes the program in the memory 1303. The processor can cooperate with the memory and transceiver to execute any of the methods and functions of the terminal device in the above embodiments.

[0279] This application also provides a chip system including a processor for supporting a terminal device or access network device to implement the functions involved in any of the above embodiments, such as generating or processing the first signal involved in the above methods. In one possible design, the chip system may further include a memory for necessary program instructions and data for the terminal device or access network device. The chip system may be composed of chips or may include chips and other discrete devices. The inputs and outputs of the chip system correspond to the receiving and transmitting operations of the terminal device or access network device in the method embodiments, respectively.

[0280] This application also provides a processing apparatus, including a processor and an interface. The processor can be used to execute the methods described in the above method embodiments.

[0281] It should be understood that the aforementioned processing device can be a chip. For example, the processing device can be a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system-on-chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0282] In implementation, each step of the above method can be completed by integrated logic circuits in the processor's hardware or by instructions in software. The steps of the method disclosed in the embodiments of this application can be directly implemented by a hardware processor, or by a combination of hardware and software modules in the processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, detailed descriptions are omitted here.

[0283] It should be noted that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by the integrated logic circuitry in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above methods.

[0284] According to the method provided in the embodiments of this application, this application also provides a computer program product, which includes: a computer program that, when run on a computer, causes the computer to perform... Figure 2 The method of any one of the embodiments shown.

[0285] According to the method provided in the embodiments of this application, this application also provides a computer-readable medium storing a computer program, which, when run on a computer, causes the computer to perform... Figure 2 The method of any one of the embodiments shown.

[0286] According to the method provided in the embodiments of this application, this application also provides a communication system, which includes one or more terminal devices and one or more access network devices as described above.

[0287] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0288] In the above-described device embodiments, the access network devices correspond to the terminal devices and the access network devices or terminal devices in the method embodiments. Corresponding modules or units execute corresponding steps. For example, the receiving module and the transmitting module (transceiver) execute the receiving or transmitting steps in the method embodiments. Steps other than transmitting and receiving can be executed by the processing module (processor). The specific functions of the modules can be found in the corresponding method embodiments. There can be one or more processors.

[0289] The terms “component,” “module,” “system,” etc., used in this specification are used to refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or a computer. As illustrated, applications running on computing devices and computing devices can both be components. One or more components may reside in a process and / or an execution thread, and components may be located on a single computer and / or distributed among two or more computers. Furthermore, these components can be executed from various computer-readable media on which various data structures are stored. Components can communicate, for example, via local and / or remote processes based on signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system, and / or a network, such as the Internet interacting with other systems via signals).

[0290] Those skilled in the art will recognize that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0291] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0292] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0293] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0294] In addition, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module.

[0295] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or an access network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0296] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, The method includes: A first signal is generated based on a first sequence, wherein the first sequence is the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0; The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M. Send the first signal.

2. The method as described in claim 1, characterized in that, The i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

3. The method as described in claim 1 or 2, characterized in that, At least one of the M subsequences has elements with the same value.

4. The method according to any one of claims 1-3, characterized in that, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

5. The method according to any one of claims 1-3, characterized in that, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

6. The method according to any one of claims 1-3, characterized in that, The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the k1th element of the first subsequence is greater than or equal to the k2th element of the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the kth element of the second subsequence is greater than or equal to the minimum value of the k1th element and the k2th element of the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the k1th element of the third subsequence is less than or equal to the k2th element of the third subsequence. Here, k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2.

7. The method as described in claim 4 or 5, characterized in that, The method further includes: Send first information to a second network device and / or a terminal device, the first information indicating parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

8. The method according to any one of claims 1-7, characterized in that, The first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

9. The method according to any one of claims 1-8, characterized in that, The method further includes: Receive the echo signal of the first signal.

10. A communication method, characterized in that, The method includes: Receive a first signal or the echo signal of the first signal, wherein the first signal is generated according to a first sequence, and the first sequence is the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

11. The method as described in claim 10, characterized in that, The i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

12. The method as described in claim 10 or 11, characterized in that, At least one of the M subsequences has elements with the same value.

13. The method according to any one of claims 10-12, characterized in that, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

14. The method according to any one of claims 10-12, characterized in that, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

15. The method according to any one of claims 10-12, characterized in that, The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the k1th element of the first subsequence is greater than or equal to the k2th element of the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the kth element of the second subsequence is greater than or equal to the minimum value of the k1th element and the k2th element of the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the k1th element of the third subsequence is less than or equal to the k2th element of the third subsequence. Here, k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2.

16. The method as described in claim 13 or 14, characterized in that, The method further includes: The system receives first information sent by a first network device, the first information being used to indicate parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

17. The method according to any one of claims 10-16, characterized in that, The first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

18. A communication device, characterized in that, The device includes: The processing module is used to generate a first signal based on a first sequence, wherein the first sequence is the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0; The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M. A transmitting module is used to transmit the first signal.

19. The apparatus as claimed in claim 18, characterized in that, The i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

20. The apparatus as claimed in claim 18 or 19, characterized in that, At least one of the M subsequences has elements with the same value.

21. The apparatus according to any one of claims 18-20, characterized in that, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

22. The apparatus according to any one of claims 18-20, characterized in that, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

23. The apparatus according to any one of claims 18-20, characterized in that, The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the k1th element of the first subsequence is greater than or equal to the k2th element of the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the kth element of the second subsequence is greater than or equal to the minimum value of the k1th element and the k2th element of the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the k1th element of the third subsequence is less than or equal to the k2th element of the third subsequence. Here, k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2.

24. The apparatus as claimed in claim 21 or 22, characterized in that, The sending module is further configured to send first information to a second network device and / or a terminal device, the first information indicating parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

25. The apparatus according to any one of claims 18-24, characterized in that, The first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

26. The apparatus according to any one of claims 18-25, characterized in that, The device further includes: The receiving module is used to receive the echo signal of the first signal.

27. A communication device, characterized in that, The device includes: A receiving module is used to receive a first signal or an echo signal of the first signal, wherein the first signal is generated according to a first sequence, and the first sequence is the product of a second sequence and a third sequence; The first sequence includes N first elements, the second sequence includes N second elements, the second sequence carries data, and the third sequence includes N third elements greater than or equal to 0. The i-th element in the second sequence corresponds to the i-th subcarrier among the N subcarriers in the first frequency domain resource, the i-th element in the third sequence corresponds to the i-th subcarrier in the first frequency domain resource, and the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, where N is an integer greater than 1 and i is an integer greater than or equal to 1 and less than or equal to N; The first frequency domain resource includes M non-overlapping sub-frequency domain resources, and the third sequence includes M sub-sequences. The t-th sub-sequence in the M sub-sequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources. The t-th sub-sequence in the M sub-sequences satisfies the t-th relation in the M relations. M is an integer greater than or equal to 2 and less than or equal to N, and t is an integer greater than or equal to 1 and less than or equal to M.

28. The apparatus as claimed in claim 27, characterized in that, The i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

29. The apparatus as claimed in claim 27 or 28, characterized in that, At least one of the M subsequences has elements with the same value.

30. The apparatus according to any one of claims 27-29, characterized in that, M equals 3, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of all elements in the second subsequence are the second value, or the values ​​of all elements in the second subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the second subsequence satisfy Functional relationship, where, Where k is the index of the element in the second subsequence within the third sequence, Less than 0, the Greater than 0, the Greater than 0; The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the value of each element in the third subsequence is a third value; Wherein, both the first value and the third value are greater than the second value.

31. The apparatus according to any one of claims 27-29, characterized in that, M equals 5, the starting frequency of the t1th sub-frequency domain resource among the M sub-frequency domain resources is less than the starting frequency of the t2th sub-frequency domain resource among the M sub-frequency domain resources, t1 is an integer greater than or equal to 1 and less than M, t2 is an integer greater than 1 and less than or equal to M, and t1 is less than t2; The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the value of each element in the first subsequence is a first value; The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the value of each element in the second subsequence is 1; The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: The values ​​of all elements in the third subsequence are the second value, or the values ​​of all elements in the third subsequence satisfy... The polynomial function of the square of, or, the values ​​of the elements in the third subsequence satisfy Functional relationship, where, Where k is the index of the element in the third subsequence within the third sequence, the Less than 0, the Greater than 0, the Greater than 0; The fourth subsequence among the M subsequences satisfies the fourth relation among the M relations, wherein the fourth relation is: the value of each element in the fourth subsequence is 1; The 5th subsequence among the M subsequences satisfies the 5th relation among the M relations, wherein the 5th relation is: the value of each element in the 5th subsequence is a third value; Wherein, the first value and the third value are both greater than 1, and the second value is greater than 0 and less than or equal to 1.

32. The apparatus according to any one of claims 27-29, characterized in that, The first subsequence among the M subsequences satisfies the first relation among the M relations, wherein the first relation is: the k1th element of the first subsequence is greater than or equal to the k2th element of the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, wherein the second relation is: the kth element of the second subsequence is greater than or equal to the minimum value of the k1th element and the k2th element of the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, wherein the third relation is: the k1th element of the third subsequence is less than or equal to the k2th element of the third subsequence. Here, k, k1, and k2 are all integers greater than or equal to 1 and less than or equal to N, k2 is greater than k1, and k is greater than or equal to k1 and less than or equal to k2.

33. The apparatus as claimed in claim 30 or 31, characterized in that, The receiving module is further configured to receive first information sent by the first network device, the first information being used to indicate parameter information of the third sequence, the parameter information including at least one of the following: the first value, the second value, the third value, and the... The above The above And the M mentioned above.

34. The apparatus according to any one of claims 27-33, characterized in that, The first signal is used for sensing, or the first signal is used for sensing and channel measurement, or the first signal is used for sensing and channel estimation, or the first signal is used for sensing and data transmission.

35. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a computer program that, when executed by a processor, causes the method as described in any one of claims 1-9 or any one of claims 10-17 to be implemented.

36. A chip, characterized in that, The chip includes a processor and a communication interface, the communication interface being used to communicate with external or internal devices, and the processor being used to implement the method as claimed in any one of claims 1-9 or any one of claims 10-17.

37. A computer program product comprising a computer program, characterized in that, When the computer program is executed, it causes the computer to perform the method of any one of claims 1-9 or any one of claims 10-17.

38. A communication system, characterized in that, The communication system includes a first network device, a second network device, and a terminal device. The first network device is used to perform the method of any one of claims 1-9, and the second network device or the terminal device is used to perform the method of any one of claims 10-17.

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