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

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0002] Communication and perception integration is a key technology in the next generation of wireless communication networks. It aims to integrate wireless communication and perception into the same system, and use the various propagation characteristics of wireless signals to achieve perception functions such as positioning, detection, imaging and identification of targets, so as to obtain information about the surrounding physical environment, tap into communication capabilities, and enhance user experience. For example, network equipment senses by sending perception signals and receiving echo signals to obtain information such as the location and speed of targets in the environment. Among them, the echo signal is the signal generated by the reflection of the perception signal by the target in the environment. The time delay of the echo signal relative to the sent perception signal reflects the distance of the target, and the Doppler frequency shift of the echo signal relative to the sent perception signal reflects the speed of the target.

[0003] When network devices need to communicate with terminal devices and perceive targets in the environment, they need to send communication-perception fusion signals for communication and perception. However, how to design communication-perception fusion signals that are used for both communication and perception is an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a communication method and device, which can not only increase the root mean square bandwidth of the synaesthesia fusion signal, thereby improving the ranging accuracy of the synaesthesia fusion signal, but also reduce the peak sidelobe ratio of the distance spectrum perceived by using the synaesthesia fusion signal, thereby reducing the perceived false alarm probability.

[0005] In a first aspect, an embodiment of the present application provides a communication method, which is applied to a first network device, or a chip or circuit configured in the first network device, including:

[0006] generating a first signal according to a first sequence, wherein the first sequence is a product of the second sequence and the third sequence;

[0007] 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;

[0008] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0009] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, a t-th sub-sequence among the M sub-sequences corresponds to a t-th sub-frequency domain resource among the M sub-frequency domain resources, the t-th sub-sequence among the M sub-sequences satisfies a t-th relationship among M relationships, 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;

[0010] The first signal is sent.

[0011] The first signal is a synaesthesia fusion signal. The synaesthesia fusion signal is generated by multiplying the second sequence carrying data by a segmented third sequence. By designing different forms of the third sequence, the generated synaesthesia fusion signal can have different properties to meet different perception and communication requirements. For example, when the third sequence is a concave sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal; when the third sequence includes a convex subsequence, the peak sidelobe ratio of the distance spectrum perceived by the synaesthesia fusion signal is lower, thereby reducing the probability of false alarm of perception.

[0012] In a 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.

[0013] In another possible design, the values ​​of the elements of at least one subsequence in the M subsequences are all the same, so that the values ​​of the elements in at least one subsequence in the third sequence are constant.

[0014] In another possible design, the M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2;

[0015] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0016] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0017] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0018] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0019] The first value and the third value are both greater than the second value.

[0020] In this design, the third sequence is a concave sequence. By generating the synaesthesia fusion signal through the third sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0021] In another possible design, the number of subcarriers included in the first subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the number of subcarriers included in the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the sum of the numbers of subcarriers included in the first subfrequency domain resource and the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.5.

[0022] In another possible design, the first value is equal to the third value.

[0023] In another possible design, the number of subcarriers included in the first sub-frequency domain resources is equal to the number of subcarriers included in the third sub-frequency domain resources.

[0024] In another possible design, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0025] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0026] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0027] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0028] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0029] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0030] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0031] 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.

[0032] In this design, the third sequence is a concave sequence. By generating the synaesthesia fusion signal through the third sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0033] In another possible design, the number of subcarriers included in the first subfrequency domain resources is equal to the number of subcarriers included in the fifth subfrequency domain resources, and / or the number of subcarriers included in the second subfrequency domain resources is equal to the number of subcarriers included in the fourth subfrequency domain resources.

[0034] In another possible design, the first value is equal to the third value.

[0035] In another possible design, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2. In this design, the third sequence is a concave sequence, and the synaesthesia fusion signal is generated by the third sequence, which can increase the root mean square bandwidth of the synaesthesia fusion signal, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0036] In another possible design, the first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence, and the third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is: the k1th element in the third subsequence is less than or equal to the k2th element of the third subsequence. The k, the k1, and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0037] In this design, the third sequence includes a subsequence in an upward convex form, and a synaesthesia fusion signal is generated by the third sequence. The peak sidelobe ratio of the distance spectrum perceived by using the synaesthesia fusion signal is lower, thereby reducing the perceived false alarm probability.

[0038] In another possible design, the sum of the squares of all elements in the third sequence is equal to N.

[0039] 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. Sensing and communication are achieved through the first signal.

[0040] In another possible design, an 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 by a target in the environment.

[0041] In another possible design, first information is sent to the second network device and / or the terminal device, the first information being used to indicate parameter information of the third sequence, the parameter information including multiple sets of parameters for determining the third sequence. The parameters can be used to determine multiple relationships. By sending the first information, 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 according to the third sequence, thereby realizing communication between the first network device and the terminal device. Moreover, when the first network device and the second network device know the second sequence, different third sequences can be used to multiply the second sequence to obtain the first sequence, and different first signals can be generated through different first sequences for perception, thereby adapting to different perception performance requirements and enabling the first network device and the first terminal device to communicate.

[0042] In a second aspect, an embodiment of the present application provides a communication method, which is applied to a second network device, or a chip or circuit configured in the second network device, including:

[0043] receiving an echo signal of a first signal, where the first signal is generated according to a first sequence, where the first sequence is a product of a second sequence and a third sequence;

[0044] 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,

[0045] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0046] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0047] The first signal is a synaesthesia fusion signal. The synaesthesia fusion signal is generated by multiplying the second sequence carrying data by a third sequence in a segmented form. By using different forms of the third sequence, the generated synaesthesia fusion signal can have different properties to meet different perception and communication requirements. For example, when the third sequence is a concave sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal; when the third sequence includes a convex subsequence, the peak sidelobe ratio of the distance spectrum perceived by the synaesthesia fusion signal is lower, thereby reducing the probability of false alarm of perception.

[0048] In a 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.

[0049] In another possible design, the values ​​of the elements of at least one subsequence in the M subsequences are all the same, so that the values ​​of the elements in at least one subsequence in the third sequence are constant.

[0050] In another possible design, the M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2;

[0051] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0052] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0053] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0054] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0055] The first value and the third value are both greater than the second value.

[0056] In this design, the third sequence is a concave sequence. By generating the synaesthesia fusion signal through the third sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0057] In another possible design, the number of subcarriers included in the first subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the number of subcarriers included in the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the sum of the numbers of subcarriers included in the first subfrequency domain resource and the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.5.

[0058] In another possible design, the first value is equal to the third value.

[0059] In another possible design, the number of subcarriers included in the first sub-frequency domain resources is equal to the number of subcarriers included in the third sub-frequency domain resources.

[0060] In another possible design, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0061] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0062] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0063] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0064] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0065] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0066] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0067] 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.

[0068] In this design, the third sequence is a concave sequence. By generating the synaesthesia fusion signal through the third sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0069] In another possible design, the number of subcarriers included in the first subfrequency domain resources is equal to the number of subcarriers included in the fifth subfrequency domain resources, and / or the number of subcarriers included in the second subfrequency domain resources is equal to the number of subcarriers included in the fourth subfrequency domain resources.

[0070] In another possible design, the first value is equal to the third value.

[0071] In another possible design, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2. In this design, the third sequence is a concave sequence, and the synaesthesia fusion signal is generated by the third sequence, which can increase the root mean square bandwidth of the synaesthesia fusion signal, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0072] In another possible design, the first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence, and the third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is: the k1th element in the third subsequence is less than or equal to the k2th element of the third subsequence. The k, the k1, and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0073] In this design, the third sequence includes a subsequence in an upward convex form, and a synaesthesia fusion signal is generated by the third sequence. The peak sidelobe ratio of the distance spectrum perceived by using the synaesthesia fusion signal is lower, thereby reducing the perceived false alarm probability.

[0074] In another possible design, the sum of the squares of all elements in the third sequence is equal to N.

[0075] In another possible design, a first information is sent by a first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes multiple sets of parameters for determining the third sequence. The parameters can be used to determine multiple relationships. The second network device determines the third sequence based on the first information. The first signal is processed based on the third sequence to obtain a second sequence. Different first sequences are obtained by multiplying the third sequence with the second sequence, and the first signals are generated by the different first sequences for perception, thereby adapting to different perception performance requirements.

[0076] 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. Sensing and communication are achieved through the first signal.

[0077] In a third aspect, an embodiment of the present application provides a communication method, which is applied to a first terminal device, or a chip or circuit configured in the first terminal device, including:

[0078] receiving a first signal, where the first signal is generated according to a first sequence, where the first sequence is a product of a second sequence and a third sequence,

[0079] 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,

[0080] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0081] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0082] The first signal is a synaesthesia fusion signal. The synaesthesia fusion signal is generated by multiplying the second sequence carrying data by a segmented third sequence. By designing different forms of the third sequence, the generated synaesthesia fusion signal can have different properties to meet different perception and communication requirements. For example, when the third sequence is a concave sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal; when the third sequence includes a convex subsequence, the peak sidelobe ratio of the distance spectrum perceived by the synaesthesia fusion signal is lower, thereby reducing the probability of false alarm of perception.

[0083] In a 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.

[0084] In another possible design, the values ​​of the elements of at least one subsequence in the M subsequences are all the same, so that the values ​​of the elements in at least one subsequence in the third sequence are constant.

[0085] In another possible design, the M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2;

[0086] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0087] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0088] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0089] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0090] The first value and the third value are both greater than the second value.

[0091] In this design, the third sequence is a concave sequence. By generating the synaesthesia fusion signal through the third sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0092] In another possible design, the number of subcarriers included in the first subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the number of subcarriers included in the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the sum of the numbers of subcarriers included in the first subfrequency domain resource and the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.5.

[0093] In another possible design, the first value is equal to the third value.

[0094] In another possible design, the number of subcarriers included in the first sub-frequency domain resources is equal to the number of subcarriers included in the third sub-frequency domain resources.

[0095] In another possible design, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0096] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0097] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0098] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0099] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0100] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0101] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0102] 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.

[0103] In this design, when the third sequence is a concave sequence, the synaesthesia fusion signal is generated by the third sequence, which can increase the root mean square bandwidth of the synaesthesia fusion signal, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0104] In another possible design, the number of subcarriers included in the first subfrequency domain resources is equal to the number of subcarriers included in the fifth subfrequency domain resources, and / or the number of subcarriers included in the second subfrequency domain resources is equal to the number of subcarriers included in the fourth subfrequency domain resources.

[0105] In another possible design, the first value is equal to the third value.

[0106] In another possible design, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2. In this design, the third sequence is a concave sequence, and the synaesthesia fusion signal is generated by the third sequence, which can increase the root mean square bandwidth of the synaesthesia fusion signal, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0107] In another possible design, the first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence, and the third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is: the k1th element in the third subsequence is less than or equal to the k2th element of the third subsequence. The k, the k1, and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0108] In this design, the third sequence includes a subsequence in an upward convex form, and a synaesthesia fusion signal is generated by the third sequence. The peak sidelobe ratio of the distance spectrum perceived by using the synaesthesia fusion signal is lower, thereby reducing the perceived false alarm probability.

[0109] In another possible design, the sum of the squares of all elements in the third sequence is equal to N.

[0110] In another possible design, a first terminal device receives first information sent by a first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes multiple sets of parameters for determining the third sequence. The parameters can be used to determine multiple relationships; based on the first information, the second sequence is obtained from the first signal. The third sequence is determined by the parameter information of the third sequence, and the first signal is demodulated to obtain the second sequence, thereby obtaining communication data or a communication reference sequence carried by the second sequence, and communication between the first network device and the first terminal device is realized.

[0111] 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. Sensing and communication are achieved through the first signal.

[0112] In a fourth aspect, an embodiment of the present application provides a communication method, which is applied to a second terminal device, or a chip or circuit configured in the second terminal device, including:

[0113] receiving an echo signal of a first signal, where the first signal is generated according to a first sequence, where the first sequence is a product of a second sequence and a third sequence;

[0114] 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,

[0115] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0116] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0117] The first signal is a synaesthesia fusion signal. The synaesthesia fusion signal is generated by multiplying the second sequence carrying data by a segmented third sequence. By designing different forms of the third sequence, the generated synaesthesia fusion signal can have different properties to meet different perception and communication requirements. For example, when the third sequence is a concave sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal; when the third sequence includes a convex subsequence, the peak sidelobe ratio of the distance spectrum perceived by the synaesthesia fusion signal is lower, thereby reducing the probability of false alarm of perception.

[0118] In a 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.

[0119] In another possible design, the values ​​of the elements of at least one subsequence in the M subsequences are all the same, so that the values ​​of the elements in at least one subsequence in the third sequence are constant.

[0120] In another possible design, the M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2;

[0121] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0122] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0123] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0124] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0125] The first value and the third value are both greater than the second value.

[0126] In this design, the third sequence is a concave sequence. By generating the synaesthesia fusion signal through the third sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0127] In another possible design, the number of subcarriers included in the first subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the number of subcarriers included in the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the sum of the numbers of subcarriers included in the first subfrequency domain resource and the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.5.

[0128] In another possible design, the first value is equal to the third value.

[0129] In another possible design, the number of subcarriers included in the first sub-frequency domain resources is equal to the number of subcarriers included in the third sub-frequency domain resources.

[0130] In another possible design, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0131] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0132] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0133] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0134] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0135] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0136] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0137] 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.

[0138] In this design, the third sequence is a concave sequence. By generating the synaesthesia fusion signal through the third sequence, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0139] In another possible design, the number of subcarriers included in the first subfrequency domain resources is equal to the number of subcarriers included in the fifth subfrequency domain resources, and / or the number of subcarriers included in the second subfrequency domain resources is equal to the number of subcarriers included in the fourth subfrequency domain resources.

[0140] In another possible design, the first value is equal to the third value.

[0141] In another possible design, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2. In this design, the third sequence is a concave sequence, and the synaesthesia fusion signal is generated by the third sequence, which can increase the root mean square bandwidth of the synaesthesia fusion signal, thereby improving the ranging accuracy of the synaesthesia fusion signal.

[0142] In another possible design, the first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence, and the third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is: the k1th element in the third subsequence is less than or equal to the k2th element of the third subsequence. The k, the k1, and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0143] In this design, the third sequence includes a subsequence in an upward convex form, and a synaesthesia fusion signal is generated by the third sequence. The peak sidelobe ratio of the distance spectrum perceived by using the synaesthesia fusion signal is lower, thereby reducing the perceived false alarm probability.

[0144] In another possible design, the sum of the squares of all elements in the third sequence is equal to N.

[0145] In another possible design, a first network device sends first information, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes multiple sets of parameters for determining the third sequence. The parameters can be used to determine multiple relationships. The second terminal device determines the third sequence based on the first information. The first signal is processed based on the third sequence to obtain a second sequence. Different first sequences are obtained by multiplying the third sequence with the second sequence, and the first signals are generated by the different first sequences for perception, thereby adapting to different perception performance requirements.

[0146] 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. Sensing and communication are achieved through the first signal.

[0147] In a fifth aspect, an embodiment of the present application provides a communication device, which is a first network device, or a unit or module in the first network device, including:

[0148] A processing module, configured to generate a first signal according to a first sequence, where the first sequence is a product of the second sequence and the third sequence;

[0149] 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;

[0150] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0151] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, a t-th sub-sequence among the M sub-sequences corresponds to a t-th sub-frequency domain resource among the M sub-frequency domain resources, the t-th sub-sequence among the M sub-sequences satisfies a t-th relationship among M relationships, 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;

[0152] A sending module is used to send the first signal.

[0153] 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.

[0154] In another possible design, values ​​of elements of at least one subsequence among the M subsequences are all the same.

[0155] In another possible design, the M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2;

[0156] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0157] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0158] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0159] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0160] The first value and the third value are both greater than the second value.

[0161] In another possible design, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0162] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0163] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0164] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0165] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0166] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0167] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0168] 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.

[0169] In another possible design, the sending module is also used to send first information to a second network device and / or terminal device, wherein the first information indicates parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s and the M.

[0170] 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.

[0171] In another possible design, the device also includes: a receiving module, configured to receive an echo signal of the first signal.

[0172] The operations and beneficial effects performed by the communication device can refer to the method and beneficial effects described in the first aspect above, and the repeated parts will not be repeated.

[0173] In a sixth aspect, an embodiment of the present application provides a communication device, which is a second network device, or a unit or module in the second network device, including:

[0174] A receiving module, configured to receive an echo signal of a first signal, where the first signal is generated according to a first sequence, where the first sequence is a product of a second sequence and a third sequence;

[0175] 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,

[0176] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0177] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0178] 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.

[0179] In another possible design, values ​​of elements of at least one subsequence among the M subsequences are all the same.

[0180] In another possible design, the M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2;

[0181] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0182] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0183] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0184] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0185] The first value and the third value are both greater than the second value.

[0186] In another possible design, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0187] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0188] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0189] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0190] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0191] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0192] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0193] 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.

[0194] In another possible design, the receiving module is also used to receive first information sent by a first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s and the M.

[0195] 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.

[0196] The operations and beneficial effects performed by the communication device can refer to the method and beneficial effects described in the second aspect above, and the repeated parts will not be repeated.

[0197] In a seventh aspect, an embodiment of the present application provides a communication device, which is a first terminal device, or a unit or module in the first terminal device, including:

[0198] a receiving module, configured to receive a first signal, wherein the first signal is generated according to a first sequence, and the first sequence is a product of a second sequence and a third sequence,

[0199] 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,

[0200] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0201] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0202] 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.

[0203] In another possible design, values ​​of elements of at least one subsequence among the M subsequences are all the same.

[0204] In another possible design, the M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2;

[0205] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0206] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0207] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0208] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0209] The first value and the third value are both greater than the second value.

[0210] In another possible design, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0211] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0212] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0213] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0214] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0215] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0216] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0217] 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.

[0218] In another possible design, the receiving module is further used to receive first information sent by the first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s, and the M;

[0219] A processing module is used to obtain the second sequence from the first signal based on the first information.

[0220] The operations and beneficial effects performed by the communication device can refer to the method and beneficial effects described in the third aspect above, and the repeated parts will not be repeated.

[0221] In an eighth aspect, an embodiment of the present application provides a communication device, which is a second terminal device, or a unit or module in the second terminal device, including:

[0222] A receiving module, configured to receive an echo signal of a first signal, where the first signal is generated according to a first sequence, where the first sequence is a product of a second sequence and a third sequence;

[0223] 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,

[0224] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0225] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0226] 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.

[0227] In another possible design, values ​​of elements of at least one subsequence among the M subsequences are all the same.

[0228] In another possible design, the M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2;

[0229] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0230] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0231] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0232] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0233] The first value and the third value are both greater than the second value.

[0234] In another possible design, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0235] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0236] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0237] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0238] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0239] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0240] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0241] 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.

[0242] In another possible design, the receiving module is also used to receive first information sent by a first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s and the M.

[0243] 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.

[0244] The operations and beneficial effects performed by the communication device can refer to the method and beneficial effects described in the fourth aspect above, and the repeated parts will not be repeated.

[0245] In a ninth aspect, the present application provides a communication device, comprising a processor and a memory, wherein the memory is used to store a computer program; the processor is used to execute the computer program stored in the memory so that the communication device performs a method as described in any one of the first aspects.

[0246] In the tenth aspect, the present 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 so that the communication device performs a method as described in any one of the second aspects.

[0247] In the eleventh aspect, the present application provides a communication device, which includes a processor and a memory, wherein the memory is used to store a computer program; the processor is used to execute the computer program stored in the memory so that the communication device performs a method as described in any one of the third aspects.

[0248] In the twelfth aspect, the present application provides a communication device, which includes a processor and a memory, the memory is used to store a computer program; the processor is used to execute the computer program stored in the memory, so that the communication device performs a method as described in any one of the fourth aspects.

[0249] In a thirteenth aspect, the present application provides a computer-readable storage medium for storing a computer program. When the computer program is executed, the method described in any one of the first to fourth aspects is implemented.

[0250] In a fourteenth aspect, the present application provides a computer program product comprising a computer program, which, when executed, enables the method described in any one of the first to fourth aspects to be implemented.

[0251] In the fifteenth aspect, an embodiment of the present application provides 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 execute the steps in the above-mentioned first aspect, the second network device is used to execute the steps in the above-mentioned second aspect, the first terminal device is used to execute the steps in the above-mentioned third aspect, and the second terminal device is used to execute the steps in the above-mentioned fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0252] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0253] FIG. 1( a ) is a schematic diagram of a perception scene provided in an embodiment of the present application;

[0254] FIG1( b ) is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0255] FIG1( c ) is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0256] Figure 2 It is a flow chart of a communication method provided in an embodiment of the present application;

[0257] Figure 3 is a schematic diagram of a third sequence provided by the present application;

[0258] Figure 4 is a schematic diagram of a sequence processing process provided by an embodiment of the present application;

[0259] Figure 5 is a schematic diagram of a third sequence provided in an embodiment of the present application;

[0260] Figure 6 is a schematic diagram of another third sequence provided in an embodiment of the present application;

[0261] Figure 7 is a schematic diagram of another third sequence provided in an embodiment of the present application;

[0262] Figure 8 is a schematic diagram of another third sequence provided in an embodiment of the present application;

[0263] Fig. 9 is a schematic diagram of another third sequence provided in an embodiment of the present application;

[0264] Fig.10 is a structural diagram of a communication device provided in an embodiment of the present application;

[0265] Fig.11 is a structural diagram of another communication device provided in an embodiment of the present application;

[0266] Fig.12 It is a structural diagram of a network device provided in an embodiment of the present application;

[0267] Fig.13 It is a structural diagram of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0268] The following is an explanation of the key terms involved in this application:

[0269] Perception: Perception is the detection of parameters of targets in the physical environment, such as the position of the target, the speed of the target, etc. It can be understood that a radar detection system detects the target by emitting electromagnetic waves and analyzing the echo signals reflected from the object. Perception can also be called detection.

[0270] Perception signal: a signal used to perceive (or detect) a perceived target (or target object). Perception signals are also called detection signals, linear frequency modulation signals, radar signals, radar perception signals, radar detection signals or environmental perception signals. Perception signals can be pulse signals or signals in wireless communication systems. For example, the perception signal can be an orthogonal frequency division multiplexing (OFDM) signal obtained by modulating a specific sequence on a subcarrier. The specific sequence can be any one of the following sequences: Zadoff-Chu sequence (ZC sequence for short), pseudo-random sequence, predefined sequence, etc. Among them, the pseudo-random sequence includes any one of the following sequences: the longest linear feedback shift register sequence (m sequence for short), Gold sequence, etc. The predefined sequence can be a random data symbol, for example, it can be a random data symbol modulated by quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), etc.

[0271] Communication-perception fusion signal: also called synaesthesia fusion signal, which is a signal used for both communication and perception. The signal used for communication can be understood as the signal carrying communication data or communication reference signal sequence to be transmitted between communication devices.

[0272] Communication signal: a signal used for communication transmitted between communication devices, for example, including a signal transmitted between a network device and a terminal device. A communication signal is, for example, a signal carried on a physical downlink shared channel (PDSCH).

[0273] The communication method provided in the embodiment of the present application can be applied to the fourth generation (4th generation, 4G) communication system, such as the long term evolution (long term evolution, LTE) communication system, and can also be applied to the fifth generation (5th generation, 5G) communication system, such as the 5G new radio (new radio, NR) communication system, or to various communication systems evolved after 5G, such as the sixth generation (6th generation, 6G) communication system. The method provided in the embodiment of the present application can also be applied to a Bluetooth system, a wireless fidelity (wireless fidelity, Wifi) system, a long range radio (longrange radio, LoRa) system or a vehicle networking system. The method provided in the embodiment of the present application can also be applied to a satellite communication system, wherein the satellite communication system can be integrated with the above-mentioned communication system.

[0274] This application can be applied to the following scenarios:

[0275] As shown in Figure 1(a), Figure 1(a) is a schematic diagram of a perception scenario provided by an embodiment of the present application. The network device transmits a perception signal or a synaesthesia fusion signal, and the network device receives the echo signal generated by the perception signal or the synaesthesia fusion signal reflecting from the target in the environment, thereby perceiving the position, speed and other information of the target. 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, the network device A sends a synaesthesia fusion signal for perception, and the synaesthesia fusion signal also 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, the network device sends a perception signal to perceive the target, and simultaneously sends a communication signal using frequency division multiplexing or space division multiplexing to communicate with the terminal device.

[0276] As shown in Figure 1(b), Figure 1(b) is a schematic diagram of another perception scenario provided by an embodiment of the present application. Network device A transmits a perception signal or a synaesthesia fusion signal, and another network device B receives the echo signal generated by the perception signal or the synaesthesia fusion signal reflecting from the target in the environment, thereby perceiving the position, speed and other information of the target. 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 synaesthesia fusion signal for perception, and the synaesthesia 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 perception signal to perceive the target, and simultaneously sends communication signals by frequency division multiplexing or space division multiplexing to communicate with the terminal device.

[0277] As shown in Figure 1(c), Figure 1(c) is a schematic diagram of another perception scenario provided by an embodiment of the present application. Network device A transmits a synaesthesia fusion signal, and terminal device B receives the echo signal generated by the synaesthesia fusion signal reflecting from the target in the environment, thereby perceiving the position, speed and other information of the target. It should be noted that the target in the environment and terminal device B are different devices. Network device A sends a synaesthesia fusion signal for perception, and the synaesthesia fusion signal carries the communication data or communication reference signal sequence that network device A needs to transmit to terminal device B.

[0278] As shown in the figure above, the communication system of this application document includes network equipment and terminal equipment. Among them:

[0279] A network device is a network-side device with wireless transceiver functions. For example, the network device may 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 base station of subsequent evolution of 3GPP, an access node in a WiFi system, a wireless relay node, a wireless backhaul node, etc. The network device may include one or more co-sited or non-co-sited transmission and reception points. For another example, the network device may include a centralized unit (CU), a distributed unit (DU), or a CU and a DU. In this way, some functions of the wireless access network device can be implemented through multiple network function entities. These network function entities may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform). For another example, in vehicle to everything (V2X) technology, the network device may be a road side unit (RSU). The multiple network devices in the communication system can be base stations of the same type or different types. The base station can communicate with the terminal device or communicate with the terminal device through a relay station. The network device in the present application can also be a device with a sensing function, which can transmit a sensing signal, receive and process reflected signals from targets in the environment. In the embodiment of the present application, the communication device for realizing the function of the network device can be a network device, or a network device with some functions of a base station, or a device that can support the network device to realize the function, such as a chip system, which can be installed in the network device.

[0280] The types of multiple network devices in the communication system may be the same or different. The network device in the present application may also be a device with a sensing function. For example, the network device may transmit a sensing signal, receive and process an echo signal reflected by a target in the environment.

[0281] In an embodiment of the present application, the network device may be a device in a wireless network. For example, the network device may be a device deployed in a wireless access network to provide wireless communication functions for terminal devices. For example, the network device may be a radio access network (RAN) node that connects the terminal device to the wireless network, and may also be referred to as an access network device. In an embodiment of the present application, a communication device for implementing the function of a network device may be a network device, or a network device having some functions of a base station, or a device that can support the network device to implement the function, such as a chip system, which may be installed in the network device or used in combination with the network device.

[0282] Terminal equipment is a user-side device with wireless transceiver functions, which can be a fixed device, mobile device, handheld device (such as a mobile phone), wearable device, vehicle-mounted device, or a wireless device built into the above devices (such as a communication module, modem, or chip system, etc.). Terminal equipment is used to connect people, objects, machines, etc., and can be widely used in various scenarios, such as: cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine / machine-type communication (M2M / MTC) communication, Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self driving, remote medical, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, drones, robots and other scenarios. Exemplarily, the terminal device may be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a surveillance camera in smart transportation and smart city, or a communication device on a drone, etc. The terminal device may sometimes be 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.

[0283] In the system shown in the present application, the network device can sense the target by sending a perception signal or a synaesthesia fusion signal. Among them, the target can be various tangible objects in the environment that can reflect electromagnetic waves, such as mountains, forests or buildings, and can also include movable objects such as vehicles, drones, pedestrians, and terminal devices. The target can also be called a perceived target, a detected target, a perceived object, a detected object, or a perceived device, etc., which is not limited in the embodiments of the present application.

[0284] The network device can use the communication signal in the existing 5G communication system as the synaesthesia fusion signal. The communication signal in the 5G communication system is generated based on the OFDM modulation method, and its generation formula is: the time continuous signal of the OFDM symbol numbered l on port p, with subcarrier configuration μ The formula is:

[0285]

[0286] in, is the value on the resource element (RE) with frequency domain number k, time domain number l, antenna port p, and subcarrier spacing configuration μ, which carries communication data or reference signal sequence. It is worth noting that the value on the RE or subcarrier numbered k of the communication signal is Indicates the size of the resource grid; represents the number of REs contained in each resource block; Δf represents the subcarrier spacing; j represents the imaginary unit; t represents the time; e represents the natural constant, which is the base of the natural logarithm function, and its value is approximately 2.718281828459045.

[0287] However, the communication signal in the 5G communication system is specially designed for communication. When the signal is used as a synaesthesia fusion signal, the perception performance of the signal may not meet the perception requirements in different perception scenarios. For example, in some perception scenarios, the perceived ranging accuracy is required to be higher; in other perception scenarios, the perceived false alarm performance is required to be higher. In order to solve the above technical problems, the embodiments of the present application provide the following solutions.

[0288] See also Figure 2 , Figure 2 1 is a flow chart of a communication method provided in an embodiment of the present application. The method includes but is not limited to the following steps:

[0289] S201: A first network device generates a first signal according to a first sequence, where the first sequence is a product of a second sequence and a third sequence.

[0290] Wherein, the second sequence includes N second elements, and any two of the N second elements may be the same or different. The second sequence carries data, or the elements of the second sequence carry data. Wherein, the 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 transmission block (including bit data of 0 and 1) into a second sequence. Wherein, the conversion process includes at least one of the following processes: 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, including a real part and an imaginary part.

[0291] The second sequence can be associated / corresponding to the frequency domain resource, and the second sequence can also be associated / corresponding to the time domain resource. For example, the second sequence corresponds to the first frequency domain resource of a symbol / code element. The second sequence is associated with the first frequency domain resource, and the first frequency domain resource includes N subcarriers (or N REs). Furthermore, the i-th element of the second sequence is associated with the i-th subcarrier of the first frequency domain resource, which 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 of the N subcarriers in the first frequency domain resource before the second sequence is multiplied by the third sequence. The N is an integer greater than 1, and the i is an integer greater than or equal to 1 and less than or equal to N.

[0292] For example, the first time domain resource is an orthogonal frequency division multiplexing (OFDM) symbol, denoted as OFDM symbol l, and an OFDM symbol includes multiple REs or subcarriers, and the multiple REs or subcarriers are the first frequency domain resources. The element numbered i in the second sequence is associated with the RE or subcarrier numbered l in the time domain and i in the frequency domain.

[0293] The third sequence does not carry data, or the elements of the third sequence do not carry data. The third sequence includes N third elements greater than or equal to 0, and any two of the N third elements may 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, and the first sequence can be obtained by windowing the second sequence using the third sequence, wherein windowing refers to element-by-element multiplication of the sequence.

[0294] 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 symmetric 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.

[0295] In an embodiment of the present application, the first frequency domain resource includes M non-overlapping sub-frequency domain resources. Optionally, each sub-frequency domain resource includes one or more continuous subcarriers (or one or more REs). The third sequence includes M subsequences, the t-th subsequence in the M subsequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources, and the t-th subsequence in the M subsequences satisfies the t-th relationship among the M relationships. It can be seen that the third sequence is a segmented sequence, and each subsequence is associated with a sub-frequency domain resource. The M is an integer greater than or equal to 2 and less than or equal to N, and the t is an integer greater than or equal to 1 and less than or equal to M. For example, M=3, the first frequency domain resource includes 3 non-overlapping sub-frequency domain resources, and the third sequence includes 3 subsequences. The first subsequence in the 3 subsequences corresponds to the first sub-frequency domain resource in the 3 sub-frequency domain resources, and the elements in the first subsequence satisfy relationship 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 relationship 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 relationship 3. M=4 or other values, and so on, which will not be repeated here. By designing different segmentation forms of the third sequence, the first signal generated based on the first sequence can meet the perceptual performance requirements of different perceptual scenarios.

[0296] It should be noted that the "relationship" in the t-th relationship among the M relationships satisfied by the t-th subsequence can be understood as a functional relationship, a mapping relationship, etc. For example, the elements of the t-th subsequence and the numbers of the elements in the t-th subsequence satisfy a functional relationship. w[i] is the third sequence, and the third sequence includes 3 subsequences. The first subsequence is the elements numbered from 0 to N1-1 in the third sequence. The elements of the first subsequence and the numbers of the elements in the first subsequence satisfy the functional relationship h1. The second subsequence is the elements numbered from N1 to N2-1 in the third sequence. The elements of the second subsequence and the numbers of the elements in the second subsequence satisfy the functional relationship h2. The third subsequence is the elements numbered from N2 to N-1 in the third sequence. The elements of the third subsequence and the numbers of the elements in the third subsequence satisfy the functional relationship h3.

[0297]

[0298] In particular, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, the k is greater than or equal to the k1 and less than or equal to k2. Figure 3 As shown, Figure 3 is a schematic diagram of a third sequence provided by the present application. Under the condition that the kth element is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the third sequence w[i] is a concave-shaped sequence. By windowing the second sequence with the concave-shaped third sequence to obtain the first sequence, the perceived ranging accuracy can be improved.

[0299] The first sequence includes N first elements, and any two of the N first elements may be the same or different. “The first sequence is the product of the second sequence and the third sequence” means that the i-th element of the first sequence is equal to the product of the i-th element in the second sequence and the i-th element in the third sequence. The i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource.

[0300] 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 in the third sequence, it can be considered that 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 corresponds to the i-th subcarrier in the first frequency domain resource. In addition, in order to ensure that the power of the first sequence and the second sequence is equal, the sum of the squares of all elements in the third sequence is equal to the N.

[0301] Specifically, after the first network device multiplies the i-th element in the second sequence by the i-th element in the third sequence to obtain the first sequence, the first sequence can be mapped to the first frequency domain resource. Further, the i-th element of the first sequence can be mapped to the i-th subcarrier in the first frequency domain resource. For example, if the first time domain resource is an OFDM symbol numbered l, denoted as OFDM symbol l, 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 resource element numbered l in the time domain and i in the frequency domain, or the element numbered i in the first sequence is carried on the resource element numbered l in the time domain and i in the frequency domain, or the value on the resource element numbered l in the time domain and i in the frequency domain is the element numbered i in the first sequence. Then, an OFDM baseband signal is generated according to the first sequence mapped on the first frequency domain resource. Among them, the expression of the OFDM baseband signal is:

[0302]

[0303] Where s(t) is the OFDM baseband signal, b[z] represents the element numbered z in the first sequence, is the number of subcarriers included in the first frequency domain resource. Δf represents the subcarrier spacing, j represents the imaginary unit, t represents the time, and e represents the natural constant, which is the base of the natural logarithm function and has a value of approximately 2.718281828459045.

[0304] Finally, the first network device may perform up-conversion and other processing on the OFDM baseband signal to generate a first signal. Depending on whether the first sequence carries data, the first signal may be a synaesthesia fusion signal or a perception signal.

[0305] Optionally, the second sequence may not carry data, or the elements of the second sequence do not carry data. In the case where the second sequence carries data or the elements of the second sequence carry data, the first sequence also carries data or the elements of the first sequence also carry data, then the first signal is a synaesthesia fusion signal. In the case where the second sequence does not carry data or the elements of the second sequence do not carry data, the first sequence does not carry data or the elements of the first sequence do not carry data, then the first signal is a perception signal.

[0306] For example, Figure 4 As shown, Figure 4It is a schematic diagram of a sequence processing process provided by an embodiment of the present application. The element numbered i in the second sequence is denoted as a[i], the element numbered i in the first sequence is denoted as b[i], and the element numbered i in the third sequence is denoted as w[i]. 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, and the element numbered i in the first sequence can be expressed as: b[i] = a[i] × w[i]. Then, the first sequence b[0], b[1], ..., b[N-1] is subjected to an inverse fast Fourier transform (IFFT), and the first sequence after the inverse fast Fourier transform is subjected to a parallel-to-serial conversion to obtain an 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 sent through the antenna.

[0307] The following are several forms of the third sequence:

[0308] In the present application document, the first frequency domain resource includes M non-overlapping sub-frequency domain resources, each of which includes one or more subcarriers. The third sequence includes M subsequences, each of which includes one or more elements. The t-th subsequence in the M subsequences corresponds to the t-th sub-frequency domain resource in the M sub-frequency domain resources, and the t-th subsequence in the M subsequences satisfies the t-th relationship in the M relationships. Among them, the starting frequency of the t1-th sub-frequency domain resource in the M sub-frequency domain resources is less than the starting frequency of the t2-th sub-frequency domain resource in the M sub-frequency domain resources, and the t1 is an integer greater than or equal to 1 and less than M, and the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2.

[0309] Optionally, the values ​​of elements of at least one subsequence among the M subsequences included in the third sequence are all the same, that is, the value of the elements in at least one subsequence is constant.

[0310] In the case of M=3, the first frequency domain resources include the 1st sub-frequency domain resource, the 2nd sub-frequency domain resource and the 3rd sub-frequency domain resource. The 1st sub-frequency domain resource is from the 1st subcarrier to the f1th subcarrier in the first frequency domain resource, the 2nd sub-frequency domain resource is from the f1+1th subcarrier to the f2th subcarrier in the first frequency domain resource, and the 3rd sub-frequency domain resource is from the f2+1th subcarrier to the Nth subcarrier in the first frequency domain resource. Among them, the f1 and the f2 are integers greater than or equal to 1 and less than N, and the f1 is less than the f2. It can be seen that the starting frequency of the 1st sub-frequency domain resource is the frequency corresponding to the 1st subcarrier, the starting frequency of the 2nd sub-frequency domain resource is the frequency corresponding to the f1+1th subcarrier, and the starting frequency of the 3rd sub-frequency domain resource is the frequency corresponding to the f2+1th 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. In addition, the first subsequence in the M subsequences corresponds to the first sub-frequency domain resource in the M sub-frequency domain resources, the second subsequence in the M subsequences corresponds to the second sub-frequency domain resource in the M sub-frequency domain resources, and the third subsequence in the M subsequences corresponds to the third sub-frequency domain resource in the M sub-frequency domain resources. Specifically, when M=3, the third sequence may include the following forms:

[0311] In an optional manner, the first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is that the values ​​of the elements in the first subsequence are all first values. The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is that the values ​​of the elements in the second subsequence are all second values. The third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is that the values ​​of the elements in the third subsequence are all third values.

[0312] Optionally, the first value and the third value are both greater than the second value.

[0313] Optionally, the value of the number of subcarriers included in the first subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the value of the number of subcarriers included in the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.25, or the value of the sum of the numbers of subcarriers included in the first subfrequency domain resource and the third subfrequency domain resource divided by the number N of all subcarriers included in the first frequency domain resources is less than 0.5.

[0314] Optionally, the first value is equal to the third value.

[0315] Optionally, the number of subcarriers included in the first sub-frequency domain resources is equal to the number of subcarriers included in the third sub-frequency domain resources.

[0316] For example, Figure 5 As shown, Figure 5 It is a schematic diagram of a third sequence provided in an embodiment of the present application. The first frequency domain resource is divided into three continuous sub-frequency domain resources by a first frequency domain separation point A and a second frequency domain separation point B. The first frequency domain separation point A and the second frequency domain separation point B can be represented by a subcarrier number, or by a resource block (RB) number, or by a resource block group (RBG) number, and the present application does not limit it. Among them, the first frequency domain separation point A is smaller than the second frequency domain separation point B, and the part of the first frequency domain resource with a number smaller than the first frequency domain separation point A is called the first sub-frequency domain resource, and the part of the first frequency domain resource with a number greater than or equal to the first frequency domain separation point A and less than or equal to the second frequency domain separation point B is called the second sub-frequency domain resource, and the part of the first frequency domain resource with a number greater than the second frequency domain separation point 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 relationship. The first relationship: the values ​​of the elements in the first subsequence are all the first value. The second subsequence corresponds to the second sub-frequency domain resource, and the second subsequence satisfies the second relationship. The second relationship: the values ​​of the elements in the second subsequence are all the second value. The third subsequence corresponds to the third sub-frequency domain resource, and the third subsequence satisfies the third relationship. The third relationship: the values ​​of the elements in the third subsequence are all the third value. The first value, the second value, and the third value are described below with examples.

[0317] The first value and the third value may both be equal to The second value may be equal to 0.4082. The number of subcarriers included in the first frequency domain resource is 792, the first sub-frequency domain resource includes subcarriers numbered 0 to 179, that is, the first sub-frequency domain resource includes 180 subcarriers, the second sub-frequency domain resource includes subcarriers numbered 180 to 611, that is, the second sub-frequency domain resource includes 432 subcarriers, and the third sub-frequency domain resource includes subcarriers numbered 612 to 791, that is, the third sub-frequency domain resource includes 180 subcarriers. It can be verified that the number of subcarriers included in the first sub-frequency domain resource is 180, and the value of the number of subcarriers included in the first sub-frequency domain resource, 180, divided by the number of subcarriers included in the first frequency domain resource, 792, is approximately 0.227, which is less than 0.25.

[0318] Alternatively, the first value and the third value may both be equal to 2, the second value may be equal to 0.577, the number of subcarriers included in the first frequency domain resource is 792, the first sub-frequency domain resource includes subcarriers numbered 0 to 71, that is, the first sub-frequency domain resource includes 72 subcarriers, the second sub-frequency domain resource includes subcarriers numbered 72 to 719, that is, the second sub-frequency domain resource includes 648 subcarriers, and the third sub-frequency domain resource includes subcarriers numbered 720 to 791, that is, the third sub-frequency domain resource includes 72 subcarriers. It can be verified that the number of subcarriers included in the first sub-frequency domain resource is 72, and the value of the number of subcarriers included in the first sub-frequency domain resource, 72, divided by the number of subcarriers included in the first frequency domain resource, 792, is approximately 0.091, which is less than 0.25.

[0319] Alternatively, the first value and the third value may both be equal to The second value may be equal to 0.6476, the number of subcarriers included in the first frequency domain resource is 792, the first sub-frequency domain resource includes subcarriers numbered 0 to 23, that is, the first sub-frequency domain resource includes 24 subcarriers, the second sub-frequency domain resource includes subcarriers numbered 24 to 767, that is, the second sub-frequency domain resource includes 744 subcarriers, and the third sub-frequency domain resource includes subcarriers numbered 768 to 791, that is, the third sub-frequency domain resource includes 24 subcarriers. It can be verified that the number of subcarriers included in the first sub-frequency domain resource is 24, and the value of the number of subcarriers included in the first sub-frequency domain resource, 24, divided by the number of subcarriers included in the first frequency domain resource, 792, is approximately 0.030, which is less than 0.25.

[0320] In another implementation, the first subsequence of the M subsequences satisfies the first relation of the M relations, and 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 of the M subsequences satisfies the second relation of the M relations, and the second relation is: the kth element of the second subsequence is greater than or equal to the minimum value of the k1th element of the second subsequence and the k2th element of the second subsequence, and the third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is: the k1th element of the third subsequence is less than or equal to the k2th element of the third subsequence. The k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0321] Optionally, the number of subcarriers included in the first sub-frequency domain resources is equal to the number of subcarriers included in the third sub-frequency domain resources.

[0322] For example, Figure 6 As shown, Figure 6 It is a schematic diagram of another third sequence provided in an embodiment of the present application. The first frequency domain resource is divided into three continuous sub-frequency domain resources by the first frequency domain separation point A and the second frequency domain separation point B. The first frequency domain separation point A and the second frequency domain separation point B can be represented by subcarrier numbers, or by resource blocks (RB) numbers, or by resource block groups (RBG) numbers, and the present application does not limit it. Among them, the first frequency domain separation point A is smaller than the second frequency domain separation point B, and the part of the first frequency domain resource with a number smaller than the first frequency domain separation point A is called the first sub-frequency domain resource, and the part of the first frequency domain resource with a number greater than or equal to the first frequency domain separation point A and less than or equal to the second frequency domain separation point B is called the second sub-frequency domain resource, and the part of the first frequency domain resource with a number greater than the second frequency domain separation point B is called the third sub-frequency domain resource. Among them, the first subsequence is associated with the first sub-frequency domain resource, and the first subsequence is a monotonically decreasing sequence. The second subsequence is associated with the second sub-frequency domain resource, and the second subsequence is a convex sequence. The third subsequence is associated with the third sub-frequency domain resource, and the third subsequence is a monotonically increasing sequence.

[0323] In another implementation, the first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is that the values ​​of the elements in the first subsequence are all first values. The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is that the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), and k is the sequence number of the elements in the third subsequence in the third sequence. The third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is that the values ​​of the elements in the third subsequence are all third values.

[0324] Among them, the polynomial function can be expressed as y=a0+a1x+a2x 2 +……+a n x n Among them, a0, a1, a2, ..., a nis a constant, x is the independent variable, and y is the dependent variable. “The values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2)” means that when the square of (k-(N-1) / 2) is substituted into x, the value of the element with sequence number k is y=a0+a1(k-(N-1) / 2) 2 +a2(k-(N-1) / 2) 4 +……+a n (k-(N-1) / 2) 2n .

[0325] Optionally, the first value is equal to the third value.

[0326] Optionally, the number of subcarriers included in the first sub-frequency domain resources is equal to the number of subcarriers included in the third sub-frequency domain resources.

[0327] Optionally, the element with sequence number i in the third sequence is equal to the element with sequence number Ni-1. For example, when N=9, the first subsequence includes the element with sequence number 0, the element with sequence number 1 and the element with sequence number 2 in the third sequence. The elements in the second subsequence include the element with sequence number 3, the element with sequence number 4 and the element with sequence number 5 in the third sequence. The third subsequence includes the element with sequence number 6, the element with sequence number 7 and the element with sequence number 8 in the third sequence. The elements in the first subsequence are all 1, the elements in the third subsequence are all 1, the element with sequence number 0 is the same as the element with sequence number 8, the element with sequence number 1 is the same as the element with sequence number 7, and the element with sequence number 2 is the same as the element with sequence number 6. The element with sequence number 3 satisfies (3-(9-1) / 2)=-1, and the element with sequence number 5 satisfies (5-(9-1) / 2)=1, and the values ​​calculated by the square polynomial function of the two are the same. It can be seen that the third sequence is a symmetrical sequence.

[0328] For example, Figure 7 As shown, Figure 7It is a schematic diagram of another third sequence provided in an embodiment of the present application. The first frequency domain resource is divided into three continuous sub-frequency domain resources by the first frequency domain separation point A and the second frequency domain separation point B. The first frequency domain separation point A and the second frequency domain separation point B can be represented by subcarrier numbers, or by RB numbers, or by RBG numbers, and the present application does not limit it. Among them, the first frequency domain separation point A is less than the second frequency domain separation point B, and the part of the first frequency domain resource with a number less than the first frequency domain separation point A is called the first sub-frequency domain resource, and the part of the first frequency domain resource with a number greater than or equal to the first frequency domain separation point A and less than or equal to the second frequency domain separation point B is called the second sub-frequency domain resource, and the part of the first frequency domain resource with a number greater than the second frequency domain separation point 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 relationship. The first relationship: the values ​​of the elements in the first subsequence are all first values. The second subsequence corresponds to the second sub-frequency domain resource, and the second subsequence satisfies the second relationship. The second relationship is: the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2). The third subsequence corresponds to the third sub-frequency domain resource, and the third subsequence satisfies the third relationship. The third relationship is: the values ​​of the elements in the third subsequence are all third values.

[0329] The polynomial function of the square of (k-(N-1) / 2) is the functional relationship: The values ​​of the elements in the second subsequence satisfy Function relationship, k is the sequence number of the element in the second subsequence in the third sequence. That is, for the element with sequence number k in the third sequence and the element is in the second subsequence, the value of the element is Wherein, d0, d1 or d2 is a parameter, 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 functional relationship 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.

[0330] It should be noted that the value of the first frequency domain separation point can be 0 (subcarrier number) and the value of the second frequency domain separation point can be N-1 (subcarrier number). In this case, the first sub-frequency domain resources and the third sub-frequency domain resources are empty sets, and the third sequence is determined only by the above-mentioned polynomial function.

[0331] In another implementation, the first frequency domain resource is divided into three continuous sub-frequency domain resources by the first frequency domain separation point A and the second frequency domain separation point B. The first frequency domain separation point A and the second frequency domain separation point B can be represented by the subcarrier number, or by the RB number, or by the RBG number, which is not limited in this application. Among them, the first frequency domain separation point A is smaller than the second frequency domain separation point B, and the part of the first frequency domain resource with a number smaller than the first frequency domain separation point A is called the first sub-frequency domain resource, the part of the first frequency domain resource with a number greater than or equal to the first frequency domain separation point A and less than or equal to the second frequency domain separation point B is called the second sub-frequency domain resource, and the part of the first frequency domain resource with a number greater than the second frequency domain separation point B is called the third sub-frequency domain resource.

[0332] Among them, the first subsequence corresponds to the first sub-frequency domain resource, the first subsequence of the M subsequences satisfies the first relationship of the M relationships, and the first relationship is: the values ​​of the elements in the first subsequence are all the first value. The second subsequence corresponds to the second sub-frequency domain resource, the second subsequence of the M subsequences satisfies the second relationship of the M relationships, and the second relationship is: the values ​​of the elements in the second subsequence satisfy Function relationship, wherein k is the sequence number of the element in the second subsequence in the third sequence, μ, v, and s are all parameters, μ is less than 0, v is greater than 0, and s is greater than 0, The third subsequence corresponds to the third sub-frequency domain resource, and the third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: values ​​of elements in the third subsequence are all third values.

[0333] Optionally, the first value is equal to the third value.

[0334] Optionally, the number of subcarriers included in the first sub-frequency domain resources is equal to the number of subcarriers included in the third sub-frequency domain resources.

[0335] It should be noted that the value of the first frequency domain separation point may be 0 (the number of the subcarrier), and the value of the second frequency domain separation point may be N-1 (the number of the subcarrier). In this case, the first sub-frequency domain resource and the third sub-frequency domain resource are empty sets, and the third sequence is determined only by the above functional relationship.

[0336] In the case of M=5, the first frequency domain resources include the 1st sub-frequency domain resource, the 2nd sub-frequency domain resource, the 3rd sub-frequency domain resource, the 4th sub-frequency domain resource and the 5th sub-frequency domain resource, the 1st sub-frequency domain resource is the 1st subcarrier to the f1th subcarrier in the first frequency domain resource, the 2nd sub-frequency domain resource is the f1+1th subcarrier to the f2th subcarrier in the first frequency domain resource, the 3rd sub-frequency domain resource is the f2+1th subcarrier to the f3th subcarrier in the first frequency domain resource, the 4th sub-frequency domain resource is the f3+1th subcarrier to the f4th subcarrier in the first frequency domain resource, and the 5th sub-frequency domain resource is the f4+1th subcarrier to the Nth subcarrier in the first frequency domain resource. Wherein, the f1, the f2, the f3 and the f4 are all integers greater than or equal to 1 and less than N, the f1 is less than the f2, the f2 is less than the f3, and the f3 is less than the f4. It can be seen that the starting frequency of the first sub-frequency domain resource is the frequency corresponding to the first sub-carrier, the starting frequency of the second sub-frequency domain resource is the frequency corresponding to the f1+1th sub-carrier, the starting frequency of the third sub-frequency domain resource is the frequency corresponding to the f2+1th sub-carrier, the starting frequency of the fourth sub-frequency domain resource is the frequency corresponding to the f3+1th sub-carrier, and the starting frequency of the fifth sub-frequency domain resource is the frequency corresponding to the f4+1th sub-carrier. 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.

[0337] 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 may include the following forms:

[0338] In one implementation, the first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is that the values ​​of the elements in the first subsequence are all first values. The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is that the values ​​of the elements in the second subsequence are all 1. The third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is that the values ​​of the elements in the third subsequence are all second values. The fourth subsequence of the M subsequences satisfies the fourth relation of the M relations, and the fourth relation is that the values ​​of the elements in the fourth subsequence are all 1. The fifth subsequence of the M subsequences satisfies the fifth relation of the M relations, and the fifth relation is that the values ​​of the elements in the fifth subsequence are all third values.

[0339] Optionally, 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.

[0340] Optionally, the first value is equal to the third value.

[0341] Optionally, the number of subcarriers included in the first subfrequency domain resource is equal to the number of subcarriers included in the fifth subfrequency domain resource, and / or the number of subcarriers included in the second subfrequency domain resource is equal to the number of subcarriers included in the fourth subfrequency domain resource.

[0342] For example, Figure 8 As shown, Figure 8 It is a schematic diagram of another third sequence provided in an embodiment of the present application. The first frequency domain resource is divided into five continuous sub-frequency domain resources by a first frequency domain separation point A, a second frequency domain separation point B, a third frequency domain separation point C, and a fourth frequency domain separation point D. The frequency domain separation point can be represented by a subcarrier number, or by an RB number, or by an RBG number, and the present application does not limit it. Among them, the first frequency domain separation point A is smaller than the second frequency domain separation point B, the second frequency domain separation point B is smaller than the third frequency domain separation point C, and the third frequency domain separation point C is smaller than the fourth frequency domain separation point D. The portion of the first frequency domain resource numbered less than the first frequency domain separation point A is called the first sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the first frequency domain separation point A and less than the second frequency domain separation point B is called the second sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the second frequency domain separation point B and less than the third frequency domain separation point C is called the third sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the third frequency domain separation point C and less than the fourth frequency domain separation point D is called the fourth sub-frequency domain resource, and the portion of the first frequency domain resource numbered greater than or equal to the fourth frequency domain separation point D is called the fifth sub-frequency domain resource.

[0343] Among them, the first subsequence corresponds to the first sub-frequency domain resource, the first subsequence of the M subsequences satisfies the first relationship of the M relationships, and the first relationship is: the values ​​of the elements in the first subsequence are all the first value. The second subsequence corresponds to the second sub-frequency domain resource, the second subsequence of the M subsequences satisfies the second relationship of the M relationships, and the second relationship is: the values ​​of the elements in the second subsequence are all 1. The third subsequence corresponds to the third sub-frequency domain resource, the third subsequence of the M subsequences satisfies the third relationship of the M relationships, and the third relationship is: the values ​​of the elements in the first subsequence are all the second value. The fourth subsequence corresponds to the fourth sub-frequency domain resource, the fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1. The 5th subsequence corresponds to the 5th sub-frequency domain resource, the 5th subsequence among the M subsequences satisfies the 5th relationship among the M relationships, the values ​​of the elements in the 5th 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.

[0344] In another implementation, the first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is that the values ​​of the elements in the first subsequence are all first values. The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is that the values ​​of the elements in the second subsequence are all 1. The third subsequence of the M subsequences satisfies the third relation of the M relations, and the third relation is that the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), and the explanation of the polynomial function refers to the previous description. The k is the sequence number of the elements in the third subsequence in the third sequence. The fourth subsequence of the M subsequences satisfies the fourth relation of the M relations, and the fourth relation is that the values ​​of the elements in the fourth subsequence are all 1. The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, values ​​of elements in the fifth subsequence are all third values, and the first value and the third value are both greater than 1.

[0345] Optionally, the first value is equal to the third value.

[0346] Optionally, the number of subcarriers included in the first subfrequency domain resource is equal to the number of subcarriers included in the fifth subfrequency domain resource, and / or the number of subcarriers included in the second subfrequency domain resource is equal to the number of subcarriers included in the fourth subfrequency domain resource.

[0347] For example, Fig. 9 As shown, Fig. 9 It is a schematic diagram of another third sequence provided in an embodiment of the present application. The first frequency domain resource is divided into five continuous sub-frequency domain resources by a first frequency domain separation point A, a second frequency domain separation point B, a third frequency domain separation point C, and a fourth frequency domain separation point D. The frequency domain separation point can be represented by a subcarrier number, or by an RB number, or by an RBG number, and the present application does not limit it. Among them, the first frequency domain separation point A is smaller than the second frequency domain separation point B, the second frequency domain separation point B is smaller than the third frequency domain separation point C, and the third frequency domain separation point C is smaller than the fourth frequency domain separation point D. The portion of the first frequency domain resource numbered less than the first frequency domain separation point A is called the first sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the first frequency domain separation point A and less than the second frequency domain separation point B is called the second sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the second frequency domain separation point B and less than the third frequency domain separation point C is called the third sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the third frequency domain separation point C and less than the fourth frequency domain separation point D is called the fourth sub-frequency domain resource, and the portion of the first frequency domain resource numbered greater than or equal to the fourth frequency domain separation point D is called the fifth sub-frequency domain resource.

[0348] Among them, the first subsequence corresponds to the first sub-frequency domain resource, the first subsequence satisfies the first relationship, the first relationship: the values ​​of the elements in the first subsequence are all the first value, the second subsequence corresponds to the second sub-frequency domain resource, the second subsequence satisfies the second relationship, the second relationship: the values ​​of the elements in the first subsequence are all 1, the third subsequence corresponds to the third sub-frequency domain resource, the third subsequence satisfies the third relationship, the third relationship: the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), the fourth subsequence corresponds to the fourth sub-frequency domain resource, the fourth subsequence satisfies the fourth relationship, the fourth relationship: the values ​​of the elements in the fourth subsequence are all 1, the fifth subsequence corresponds to the fifth sub-frequency domain resource, the fifth subsequence satisfies the fifth relationship, the fifth relationship: the values ​​of the elements in the fifth subsequence are all the third value. The first value and the third value are both greater than 1.

[0349] The polynomial function of the square of (k-(N-1) / 2) is the functional relationship: The values ​​of the elements in the third subsequence satisfy Function relationship, k is the sequence number of the element in the third subsequence in the third sequence. That is, for the element with sequence number k in the third sequence and the element is in the second subsequence, the value of the element is Among them, d0, d1 or d2 is a parameter, d0 is greater than 0, d1 is greater than or equal to 0, and d2 is greater than 0.

[0350] In another implementation, the first frequency domain resource is divided into five continuous sub-frequency domain resources by a first frequency domain separation point A, a second frequency domain separation point B, a third frequency domain separation point C, and a fourth frequency domain separation point D. The frequency domain separation point can be represented by a subcarrier number, an RB number, or an RBG number, and this application does not limit it. Among them, the first frequency domain separation point A is smaller than the second frequency domain separation point B, the second frequency domain separation point B is smaller than the third frequency domain separation point C, and the third frequency domain separation point C is smaller than the fourth frequency domain separation point D. The portion of the first frequency domain resource numbered less than the first frequency domain separation point A is called the first sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the first frequency domain separation point A and less than the second frequency domain separation point B is called the second sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the second frequency domain separation point B and less than the third frequency domain separation point C is called the third sub-frequency domain resource, the portion of the first frequency domain resource numbered greater than or equal to the third frequency domain separation point C and less than the fourth frequency domain separation point D is called the fourth sub-frequency domain resource, and the portion of the first frequency domain resource numbered greater than or equal to the fourth frequency domain separation point D is called the fifth sub-frequency domain resource.

[0351] Among them, the first subsequence corresponds to the first sub-frequency domain resource, and the first subsequence of the M subsequences satisfies the first relationship of the M relationships, and the first relationship is: the values ​​of the elements in the first subsequence are all the first value. The second subsequence corresponds to the second sub-frequency domain resource, and the second subsequence of the M subsequences satisfies the second relationship of the M relationships, and the second relationship is: the values ​​of the elements in the second subsequence are all 1. The third subsequence corresponds to the third sub-frequency domain resource, and the third subsequence of the M subsequences satisfies the third relationship of the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence satisfy Functional relationship, where The k is the sequence number of the element in the third subsequence in the third sequence, the μ is less than 0, the v is greater than 0, and the s is greater than 0. The fourth subsequence corresponds to the fourth sub-frequency domain resource, the fourth subsequence in the M subsequences satisfies the fourth relationship in the M relationships, and the fourth relationship is that the values ​​of the elements in the fourth subsequence are all 1. The fifth subsequence corresponds to the fifth sub-frequency domain resource, the fifth subsequence in the M subsequences satisfies the fifth relationship in the M relationships, the values ​​of the elements in the fifth subsequence are all third values, and the first value and the third value are both greater than 1.

[0352] Optionally, the first value is equal to the third value.

[0353] 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.

[0354] 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 may also be equal to other values. When M is equal to other values, it is similar to the above-mentioned 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 the present application and will not be repeated here.

[0355] S202: The first network device sends the first signal.

[0356] S203: The first network device / the second network device / the second terminal device receives an echo signal.

[0357] Among them, the first signal can be a synaesthesia fusion signal or a communication perception fusion signal, and the first signal can be used for perception or communication. For example, the first signal is used for perception, or the first signal is used for perception and channel measurement, or the first signal is used for perception and channel estimation, or the first signal is used for perception and downlink data transmission. The first signal sent by the first network device generates an echo signal after being reflected by a target in the environment. The first network device, the second network device, or the second terminal device can receive the echo signal on the first frequency domain resource.

[0358] For example, if the first signal is a demodulation reference signal used for perception, then the signal is used for perception and channel estimation; for another example, if the first signal is a channel state information reference signal used for perception, then the signal is used for perception and channel measurement; for another example, if the first signal is a signal carried on a physical downlink shared channel (PDSCH) for perception, then the signal is used for perception and downlink data transmission.

[0359] In the scenario shown in Figure 1(a), the first network device sends a first signal and receives an echo signal generated by reflection from a target in the environment on a first frequency domain resource. The first network device can sense information such as the position and speed of the target based on the first signal and the echo signal.

[0360] In the scenario shown in Figure 1(b), the first network device sends a first signal, and the 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, and the reference signal sequence can be used for channel measurement, channel estimation, etc., thereby realizing the communication function of the first signal. In addition, the first network device sends the first signal, and the second network device receives the echo signal of the first signal, thereby realizing the perception function of the first signal.

[0361] Optionally, the first network device may send first information to the second network device and / or the first terminal device, where the first information is 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. Furthermore, the first terminal device may demodulate the first signal to obtain the first sequence, and then process the first sequence through the third sequence to obtain the second sequence.

[0362] Wherein, the parameter information includes multiple sets of parameters for determining the third sequence. The 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 of the first set; the second set of parameters includes: the first value a2, the second value b2, and the third value c2 of the second set; the third set of parameters includes: the first value a3, the second value b3, and the third value c3 of the third set. The fourth set of parameters includes: the first value a4, the second value b4, and the third value c4 of the fourth set. 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 of the first set; the second set of parameters includes: the first value a2, the third value b2, d0=e4, d1=e5, and d2=e6 of the second set; the third set of parameters includes: the first value a3, the third value b3, d0=e7, d1=e8, and d2=e9 of the third set. The fourth set of parameters includes: the fourth set of first value a4, third value b4, d0=e10, d1=e11, d2=e12. The above M (M=3) relationships can be determined respectively by each set of parameters, and different relationships can be determined by different values ​​in each set of parameters.

[0363] Table 1

[0364]

[0365] Table 2

[0366]

[0367] The parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s, and the M. Optionally, the parameter information may also include the number of subcarriers or the number of RBs occupied by each sub-frequency domain resource in the M sub-frequency domain resources. Alternatively, the parameter information may also include the number of subcarriers or the number of RBs occupied by the first sub-frequency domain resource in the M sub-frequency domain resources. Alternatively, the parameter information may also include a frequency domain separation point (e.g., a first frequency domain separation point A and a second frequency domain separation point B), and the like.

[0368] For example, when M=3, the parameter information of the third sequence may include the following cases: the first frequency domain separation point A, the second frequency domain separation point B, the first value, the second value, the third value; or, the first frequency domain separation point A, the second frequency domain separation point B, the first value, the third value and parameters d0, d1, d2; or, the first frequency domain separation point A, the second frequency domain separation point B, the first value, the third value and parameters μ, v, s.

[0369] When M=5, the parameter information of the third sequence may include the following situations: the first frequency domain separation point A, the second frequency domain separation point B, the third frequency domain separation point C, the fourth frequency domain separation point D, the first value, the second value, the third value; or, the first frequency domain separation point A, the second frequency domain separation point B, the third frequency domain separation point C, the fourth frequency domain separation point D, the first value, the third value and parameters d0, d1, d2; or, the first frequency domain separation point A, the second frequency domain separation point B, the third frequency domain separation point C, the fourth frequency domain separation point D, the first value, the third value and parameters μ, v, s.

[0370] Optionally, the first information may be a plurality of bits, such as two bits or more than two 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 adopted. The values ​​of the elements in the first subsequence are all a1, the values ​​of the elements in the second subsequence are all b1, and the values ​​of the elements in the third subsequence are all 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 adopted, the values ​​of the elements in the first subsequence are all a2, the values ​​of the elements in the second subsequence are all b2, and the values ​​of the elements in the third subsequence are all c2. Others are similar and will not be described one by one here.

[0371] Optionally, the parameter information may be predefined or notified by high-level signaling (such as RRC signaling). For example, as shown in Table 2, the predefined first set of parameters includes: the first value a1 of the first set, the third value b1, d0=e1, d1=e2, d2=e3; the second set of parameters includes: the first value a2 of the second set, the third value b2, d0=e4, d1=e5, d2=e6; the third set of parameters includes: the first value a3 of the third set, the third value b3, d0=e7, d1=e8, d2=e9. The fourth set of parameters includes: the first value a4 of the fourth set, the third value b4, d0=e10, d1=e11, d2=e12. Multiple sets of parameters of the third sequence are notified by RRC signaling, and then the third sequence is indicated to use one or more sets of parameters from the multiple sets of parameters by the first information.

[0372] The first terminal device receives the first signal, demodulates the first signal to obtain the first sequence, and determines the third sequence according to the received first information. Then, the first sequence is processed according to the third sequence to obtain the second sequence, and then the communication data or communication reference sequence carried by the second sequence is obtained to realize the communication between the first network device and the first terminal device. Optionally, the second network device can determine the third sequence according to the first information. In the case where the first network device and the second network device know the second sequence, different third sequences can be designed, multiplied with the second sequence to obtain the first sequence, and different first signals are generated through different first sequences for perception, so as to adapt to different perception performance requirements and enable the first network device and the first terminal device to communicate.

[0373] 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 the first frequency domain resource, and obtain the communication data or communication reference signal sequence sent by the first network device to the second terminal device, that is, the first signal is used to communicate between the first network device and the second terminal device. Among them, the first signal carries the data or reference signal sequence sent by the first network device to the first terminal device, and the reference signal sequence can be used for channel measurement, channel estimation, etc. In addition, the second terminal device can also receive the echo signal generated by the reflection of the target in the environment, and estimate the position, speed and other parameters of the target in the environment according to the echo signal.

[0374] Optionally, the first network device may send first information to the second terminal device, and the first information is 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, the μ, the v, the s and the M. Optionally, the parameter information may also include the number of subcarriers or the number of RBs occupied by each sub-frequency domain resource in the M sub-frequency domain resources. Alternatively, the parameter information may also include the number of subcarriers or the number of RBs occupied by the first sub-frequency domain resource in the M sub-frequency domain resources. Alternatively, the parameter information may also include frequency domain separation points (e.g., frequency domain separation point A and frequency domain separation point B), etc. Similar to the above, it is not explained here.

[0375] The second terminal device determines the third sequence according to the first information, and processes the first signal based on the third sequence to obtain the second sequence. Then, the communication data or communication reference sequence carried by the second sequence is obtained to realize the 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 perception. Different third sequences generate different first sequences, and thus the generated first signals are also different. Different first signals have different perception performances, so different perception performances can also be achieved when the second terminal device receives the echo signal for perception processing.

[0376] In an embodiment of the present application, a synaesthesia fusion signal is generated by multiplying a second sequence carrying data by a third sequence in a segmented form, and different forms of third sequences are designed to enable the generated synaesthesia fusion signal to have different properties to meet different perception and communication requirements. For example, when the third sequence is a sequence in a concave form, the root mean square bandwidth of the synaesthesia fusion signal can be increased, thereby improving the ranging accuracy of the synaesthesia fusion signal; when the third sequence includes a subsequence in a convex form, the peak sidelobe ratio of the distance spectrum perceived by the synaesthesia fusion signal is lower, thereby reducing the probability of false alarm of perception.

[0377] It can be understood that in the above-mentioned method embodiments, the methods and operations implemented by the terminal device can also be implemented by components that can be used for the terminal device (such as chips or circuits), and the methods and operations implemented by the network device can also be implemented by components that can be used for the network device (such as chips or circuits).

[0378] The embodiment of the present application can divide the functional modules of the terminal device or network device according to the above method example. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of using each functional module divided according to each function to illustrate.

[0379] Above, combined Figure 2 The method provided by the embodiment of the present application is described in detail. Figures 9 and 10 The communication device provided in the embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the contents not described in detail can be referred to the method embodiment above, and will not be repeated here for the sake of brevity.

[0380] See also Fig.10 , Fig.10 1 is a schematic diagram of a communication device provided in an embodiment of the present application. The communication device may include a receiving module 1001, a processing module 1002 and a sending module 1003. The receiving module 1001 and the sending module 1003 may communicate with the outside, and the processing module 1002 is used for processing, such as generating a first signal.

[0381] In one possible design, the communication device can implement the steps or processes executed by the first network device or the second network device in the above method embodiment, for example, it can be the first network device or the second network device, or a chip or circuit configured in the first network device or the second network device. The receiving module 1001 and the sending module 1003 are used to perform the receiving and sending related operations of the first network device or the second network device in the above method embodiment, and the processing module 1002 is used to perform the processing related operations of the first network device or the second network device in the above method embodiment.

[0382] In one embodiment:

[0383] A processing module 1002 is configured to generate a first signal according to a first sequence, where the first sequence is a product of a second sequence and a third sequence;

[0384] 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;

[0385] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0386] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, a t-th sub-sequence among the M sub-sequences corresponds to a t-th sub-frequency domain resource among the M sub-frequency domain resources, the t-th sub-sequence among the M sub-sequences satisfies a t-th relationship among M relationships, 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;

[0387] The sending module 1003 is configured to send the first signal.

[0388] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0389] Optionally, values ​​of elements of at least one subsequence among the M subsequences are all the same.

[0390] Optionally, M is equal to 3, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0391] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0392] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0393] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0394] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0395] The first value and the third value are both greater than the second value.

[0396] Optionally, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0397] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0398] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0399] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0400] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0401] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0402] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0403] 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.

[0404] Optionally, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2.

[0405] Optionally, the first subsequence among the M subsequences satisfies the first relation among the M relations, and the first relation is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: the k1th element in the third subsequence is less than or equal to the k2th element in the third subsequence. The k, the k1, and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0406] Optionally, the sending module is also used to send first information to a second network device and / or terminal device, wherein the first information indicates parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s and the M.

[0407] 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.

[0408] Optionally, the receiving module 1001 is used to receive an echo signal of the first signal.

[0409] In another embodiment:

[0410] A receiving module 1001 is configured to receive an echo signal of a first signal, where the first signal is generated according to a first sequence, where the first sequence is a product of a second sequence and a third sequence;

[0411] 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,

[0412] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0413] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0414] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0415] Optionally, values ​​of elements of at least one subsequence among the M subsequences are all the same.

[0416] Optionally, M is equal to 3, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0417] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0418] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0419] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0420] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0421] The first value and the third value are both greater than the second value.

[0422] Optionally, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0423] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0424] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0425] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0426] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0427] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0428] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0429] 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.

[0430] Optionally, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2.

[0431] Optionally, the first subsequence among the M subsequences satisfies the first relation among the M relations, and the first relation is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: the k1th element in the third subsequence is less than or equal to the k2th element in the third subsequence. The k, the k1, and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0432] Optionally, the receiving module 1001 is also used to receive first information sent by a first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s and the M.

[0433] 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.

[0434] It should be noted that the implementation of each module can also refer to Figure 2 The corresponding description of the method embodiment shown executes the method and functions performed by the first network device or the second network device in the above embodiment.

[0435] See also Fig.11 , Fig.11 1 is a schematic diagram of the structure of another communication device provided in an embodiment of the present 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 performing demodulation of the first signal.

[0436] In one possible design, the communication device may implement the steps or processes executed by the first terminal device or the second terminal device in the above method embodiment, for example, it may be the first terminal device or the second terminal device, or a chip or circuit configured in the first terminal device or the second terminal device. The receiving module 1101 is used to perform the sending and receiving related operations of the first terminal device or the second terminal device in the above method embodiment, and the processing module 1102 is used to perform the processing related operations of the first terminal device or the second terminal device in the above method embodiment.

[0437] In one embodiment:

[0438] The receiving module 1101 is configured to receive a first signal, where the first signal is generated according to a first sequence, where the first sequence is a product of a second sequence and a third sequence.

[0439] 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,

[0440] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0441] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0442] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0443] Optionally, values ​​of elements of at least one subsequence among the M subsequences are all the same.

[0444] Optionally, M is equal to 3, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0445] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0446] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0447] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0448] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0449] The first value and the third value are both greater than the second value.

[0450] Optionally, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0451] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0452] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0453] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0454] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0455] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0456] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0457] 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.

[0458] Optionally, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2.

[0459] Optionally, the first subsequence among the M subsequences satisfies the first relation among the M relations, and the first relation is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: the k1th element in the third subsequence is less than or equal to the k2th element in the third subsequence. The k, the k1, and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0460] Optionally, the receiving module 1101 is further configured to receive first information sent by a first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s, and the M;

[0461] The processing module 1102 is configured to obtain the second sequence from the first signal based on the first information.

[0462] In another embodiment:

[0463] A receiving module 1101 is configured to receive an echo signal of a first signal, where the first signal is generated according to a first sequence, where the first sequence is a product of a second sequence and a third sequence;

[0464] 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,

[0465] The i-th element in the second sequence corresponds to the i-th subcarrier among 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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;

[0466] The first frequency domain resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

[0467] Optionally, the i-th element in the third sequence is equal to the (N-i+1)-th element in the third sequence.

[0468] Optionally, values ​​of elements of at least one subsequence among the M subsequences are all the same.

[0469] Optionally, M is equal to 3, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0470] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0471] The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is:

[0472] The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0473] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values;

[0474] The first value and the third value are both greater than the second value.

[0475] Optionally, M is equal to 5, a starting frequency of a t1th sub-frequency domain resource among the M sub-frequency domain resources is less than a starting frequency of a 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;

[0476] The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values;

[0477] The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1;

[0478] The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is:

[0479] The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0;

[0480] The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1;

[0481] The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value;

[0482] 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.

[0483] Optionally, the kth element in the third sequence is less than or equal to the maximum value of the k1th element in the third sequence and the k2th element in the third sequence, the k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2.

[0484] Optionally, the first subsequence among the M subsequences satisfies the first relation among the M relations, and the first relation is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence. The third subsequence among the M subsequences satisfies the third relation among the M relations, and the third relation is: the k1th element in the third subsequence is less than or equal to the k2th element in the third subsequence. The k, the k1, and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the 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.

[0485] Optionally, the receiving module 1101 is also used to receive first information sent by a first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s and the M.

[0486] 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.

[0487] It should be noted that the implementation of each module can also refer to Figure 2 The corresponding description of the method embodiment shown executes the method and functions performed by the first terminal device or the second terminal device in the above embodiment.

[0488] Fig.12 1 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. The network device can be applied to the system shown in FIG. 1(a), FIG. 1(b) and FIG. 1(c) to perform the functions of the network device in the above method embodiment, or to implement the steps or processes performed by the network device in the above method embodiment.

[0489] like Fig.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, the transceiver 1202 and the memory 1203 can communicate with each other through an internal connection path to transmit control and / or data signals. The memory 1203 is used to store a computer program, and the processor 1201 is used to call and run the computer program from the memory 1203 to control the transceiver 1202 to send and receive signals. Optionally, the network device may also include an antenna for sending the uplink data or uplink control signaling output by the transceiver 1202 through a wireless signal.

[0490] The processor 1201 and the memory 1203 may be combined into a processing device, and the processor 1201 is used to execute the program code stored in the memory 1203 to implement the above functions. In specific implementation, the memory 1203 may also be integrated into the processor 1201, or independent of the processor 1201. Fig.10 Corresponding to the processing module in.

[0491] The transceiver 1202 can be used with Fig.10 The receiving module and the sending module in the embodiment correspond to each other, and may also be referred to as a transceiver unit or a transceiver module. The transceiver 1202 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0492] It should be understood that Fig.12 The network equipment shown can achieve Figure 2 The method embodiment shown involves various processes of the network device. The operations and / or functions of each module in the network device are respectively to implement the corresponding processes in the above method embodiment. For details, please refer to the description in the above method embodiment. To avoid repetition, the detailed description is appropriately omitted here.

[0493] The processor 1201 can be used to execute the actions implemented by the network device in the previous method embodiment, and the transceiver 1202 can be used to execute the actions of the network device sending to or receiving from the network device described in the previous method embodiment. Please refer to the description in the previous method embodiment for details, which will not be repeated here.

[0494] Among them, the processor 1201 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array 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 contents disclosed in 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, and so on. The communication bus 1204 can be a peripheral component interconnect standard PCI bus or an extended industrial 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, Fig.12 Only one thick line is used to represent it, but it does not mean 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. Among them, the transceiver 1202 in the embodiment of the present application is used to communicate signaling or data with other node devices. The memory 1203 may include volatile memory, such as nonvolatile dynamic random access memory (NVRAM), phase change random access memory (PRAM), magnetoresistive random access memory (MRAM), etc., and may also include non-volatile 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. The memory 1203 may also be at least one storage device located away from the aforementioned processor 1201. The memory 1203 may optionally store a set of computer program codes or configuration information. Optionally, the processor 1201 may also execute a program stored in the memory 1203. The processor may cooperate with the memory and the transceiver to execute any method and function of the network device in the above-mentioned application embodiment.

[0495] Fig.13 1 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. The terminal device can be applied to the system shown in FIG. 1(a), FIG. 1(b) and FIG. 1(c) to perform the functions of the terminal device in the above method embodiment, or to implement the steps or processes performed by the terminal device in the above method embodiment.

[0496] like Fig.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, the transceiver 1302 and the memory 1303 can communicate with each other through an internal connection path to transmit control and / or data signals. The memory 1303 is used to store a computer program, and the processor 1301 is used to call and run the computer program from the memory 1303 to control the transceiver 1302 to send and receive signals. Optionally, the terminal device may also include an antenna for sending the uplink data or uplink control signaling output by the transceiver 1302 through a wireless signal.

[0497] The processor 1301 and the memory 1303 may be combined into a processing device, and the processor 1301 is used to execute the program code stored in the memory 1303 to implement the above functions. In specific implementation, the memory 1303 may also be integrated into the processor 1301, or independent of the processor 1301. Fig.11 Corresponding to the processing module in.

[0498] The transceiver 1302 can be used with Fig.11 The transceiver 1302 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0499] It should be understood that Fig.13 The terminal equipment shown is capable of implementing Figure 2 The method embodiment shown involves various processes of the terminal device. The operations and / or functions of each module in the terminal device are respectively to implement the corresponding processes in the above method embodiment. For details, please refer to the description in the above method embodiment. To avoid repetition, the detailed description is appropriately omitted here.

[0500] The processor 1301 can be used to execute the actions implemented by the terminal device in the previous method embodiment, and the transceiver 1302 can be used to execute the actions of the terminal device sending to or receiving from the terminal device described in the previous method embodiment. Please refer to the description in the previous method embodiment for details, which will not be repeated here.

[0501] The processor 1301 may be any of the above mentioned processors. The communication bus 1304 may be a PCI bus or an EISA bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.13Only one thick line is used to represent it, but it does not mean that there is only one bus or one type of bus. The communication bus 1304 is used to realize the connection and communication between these components. Among them, the transceiver 1302 of the device in the embodiment of the present application is used to communicate signaling or data with other devices. The memory 1303 can be the various types of memory mentioned above. The memory 1303 can also be at least one storage device located away from the aforementioned processor 1301. A group of computer program codes or configuration information are stored in the memory 1303, and the processor 1301 executes the program in the memory 1303. The processor can cooperate with the memory and the transceiver to execute any one of the methods and functions of the terminal device in the above-mentioned application embodiment.

[0502] An embodiment of the present application also provides a chip system, which includes a processor for supporting a terminal device or an 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 method. In one possible design, the chip system may also include a memory, which is used for the necessary program instructions and data for the terminal device or the access network device. The chip system can be composed of a chip, or it can include a chip and other discrete devices. Among them, the input and output of the chip system correspond to the receiving and sending operations of the terminal device or the access network device in the method embodiment.

[0503] The present application also provides a processing device, including a processor and an interface. The processor can be used to execute the method in the above method embodiment.

[0504] It should be understood that the above-mentioned 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 micro controller unit (MCU), a programmable logic device (PLD) or other integrated chips.

[0505] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in a processor for execution. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

[0506] It should be noted that the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above 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 gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined and performed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0507] According to the method provided in the embodiment of the present application, the present application also provides a computer program product, the computer program product comprising: a computer program, when the computer program is run on a computer, causes the computer to execute Figure 2 A method according to any one of the embodiments shown.

[0508] According to the method provided in the embodiment of the present application, the present application also provides a computer-readable medium, which stores a computer program, and when the computer program is run on a computer, the computer executes Figure 2 A method according to any one of the embodiments shown.

[0509] According to the method provided in the embodiment of the present application, the present application also provides a communication system, which includes one or more terminal devices and one or more access network devices mentioned above.

[0510] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of 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, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disc (SSD)).

[0511] The access network devices in the above-mentioned various device embodiments correspond to the access network devices or terminal devices in the terminal devices and method embodiments, and the corresponding modules or units perform the corresponding steps. For example, the receiving module and the sending module (transceiver) perform the steps of receiving or sending in the method embodiment, and other steps except sending and receiving can be performed by the processing module (processor). The functions of the specific modules can refer to the corresponding method embodiments. Among them, there can be one or more processors.

[0512] The terms "component", "module", "system", etc. used in this specification are used to represent computer-related entities, hardware, firmware, a combination 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. By way of illustration, both applications running on a computing device and a computing device can be components. One or more components may reside in a process and / or an execution thread, and a component may be located on a computer and / or distributed between two or more computers. In addition, these components may be executed from various computer-readable media having various data structures stored thereon. Components may, for example, communicate through 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 through signals).

[0513] Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0514] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0515] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0516] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0517] In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

[0518] If the functions are implemented in the form of 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 the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or an access network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

[0519] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: The method comprises: The first network device generates a first signal according to a first sequence, where the first sequence is a 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 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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 resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, a t-th sub-sequence among the M sub-sequences corresponds to a t-th sub-frequency domain resource among the M sub-frequency domain resources, the t-th sub-sequence among the M sub-sequences satisfies a t-th relationship among M relationships, 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 first network device sends the first signal.

2. The method according to 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 according to claim 1 or 2, characterized in that The values ​​of elements of at least one subsequence in the M subsequences are all the same.

4. The method according to any one of claims 1 to 3, characterized in that: The M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2; The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0; The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values; The first value and the third value are both greater than the second value.

5. The method according to any one of claims 1 to 3, characterized in that: The M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2; The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values; The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1; The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0; The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1; The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value; 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 to 3, characterized in that: The first subsequence among the M subsequences satisfies the first relationship among the M relationships, and the first relationship is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence among the M subsequences satisfies the second relationship among the M relationships, and the second relationship is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence. The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the k1th element in the third subsequence is less than or equal to the k2 elements of the third subsequence. The k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2.

7. The method according to claim 4 or 5, characterized in that The method further comprises: The first network device sends first information to the second network device and / or the terminal device, where the first information indicates parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s, and the M.

8. The method according to any one of claims 1 to 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 to 8, characterized in that The method further comprises: The first network device receives an echo signal of the first signal.

10. A communication method, characterized in that: The method comprises: The second network device receives an echo signal of a first signal, where the first signal is generated according to a first sequence, where the first sequence is a 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 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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 resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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 according to 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 according to claim 10 or 11, characterized in that The values ​​of elements of at least one subsequence in the M subsequences are all the same.

13. The method according to any one of claims 10 to 12, characterized in that: The M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2; The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0; The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values; The first value and the third value are both greater than the second value.

14. The method according to any one of claims 10 to 13, characterized in that: The M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2; The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values; The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1; The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0; The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1; The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value; 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 to 13, characterized in that: The first subsequence among the M subsequences satisfies the first relationship among the M relationships, and the first relationship is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence among the M subsequences satisfies the second relationship among the M relationships, and the second relationship is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence. The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the k1th element in the third subsequence is less than or equal to the k2 elements of the third subsequence. The k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2.

16. The method according to claim 13 or 14, characterized in that The method further comprises: The second network device receives first information sent by the first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, μ, v, s, and M.

17. The method according to any one of claims 10 to 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 method, characterized in that: The method comprises: The terminal device receives a first signal, where the first signal is generated according to a first sequence, where the first sequence is a 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 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, the i-th element in the first sequence is carried on the i-th subcarrier in the first frequency domain resource, 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 resources include M non-overlapping sub-frequency domain resources, the third sequence includes M sub-sequences, 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, the t-th sub-sequence among the M sub-sequences satisfies the t-th relationship among the M relationships, 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.

19. The method according to 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 method according to claim 18 or 19, characterized in that The values ​​of elements of at least one subsequence in the M subsequences are all the same.

21. The method according to any one of claims 18 to 20, characterized in that: The M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2; The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values; The second subsequence among the M subsequences satisfies the second relation among the M relations, and the second relation is: The values ​​of the elements in the second subsequence are all the second value, or the values ​​of the elements in the second subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the second subsequence satisfy Functional relationship, where k is the sequence number of the element in the second subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0; The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the values ​​of the elements in the third subsequence are all third values; The first value and the third value are both greater than the second value.

22. The method according to any one of claims 18 to 20, characterized in that The M is equal to 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, the t1 is an integer greater than or equal to 1 and less than M, the t2 is an integer greater than 1 and less than or equal to M, and the t1 is less than the t2; The first subsequence of the M subsequences satisfies the first relation of the M relations, and the first relation is: the values ​​of the elements in the first subsequence are all first values; The second subsequence of the M subsequences satisfies the second relation of the M relations, and the second relation is: the values ​​of the elements in the second subsequence are all 1; The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: The values ​​of the elements in the third subsequence are all the second value, or the values ​​of the elements in the third subsequence satisfy the polynomial function of the square of (k-(N-1) / 2), or the values ​​of the elements in the third subsequence satisfy Functional relationship, where k is the sequence number of the element in the third subsequence in the third sequence, μ is less than 0, v is greater than 0, and s is greater than 0; The fourth subsequence of the M subsequences satisfies the fourth relationship of the M relationships, and the fourth relationship is: the values ​​of the elements in the fourth subsequence are all 1; The fifth subsequence among the M subsequences satisfies the fifth relationship among the M relationships, and the fifth relationship is: the values ​​of the elements in the fifth subsequence are all the third value; 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 method according to any one of claims 18 to 20, characterized in that The first subsequence among the M subsequences satisfies the first relationship among the M relationships, and the first relationship is: the k1th element in the first subsequence is greater than or equal to the k2th element in the first subsequence. The second subsequence among the M subsequences satisfies the second relationship among the M relationships, and the second relationship is: the kth element in the second subsequence is greater than or equal to the minimum value of the k1th element in the second subsequence and the k2th element in the second subsequence. The third subsequence among the M subsequences satisfies the third relationship among the M relationships, and the third relationship is: the k1th element in the third subsequence is less than or equal to the k2 elements of the third subsequence. The k, the k1 and the k2 are all integers greater than or equal to 1 and less than or equal to N, the k2 is greater than the k1, and the k is greater than or equal to the k1 and less than or equal to k2.

24. The method according to claim 21 or 22, characterized in that The method further comprises: The terminal device receives first information sent by a first network device, where the first information is used to indicate parameter information of the third sequence, and the parameter information includes at least one of the following: the first value, the second value, the third value, the μ, the v, the s, and the M.

25. A communication device, characterized in that: The communication device comprises a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method according to any one of claims 1 to 9 is implemented.

26. A communication device, characterized in that: The communication device comprises a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method according to any one of claims 10 to 17 is implemented.

27. A communication device, characterized in that: The communication device comprises a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method according to any one of claims 18 to 24 is implemented.

28. A computer-readable storage medium, characterized in that: The computer-readable storage medium comprises a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 24 is implemented.

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