Sensing method, sensing transmitter and sensing receiver

Abstract

The present disclosure relates to a sensing method, a sensing transmitter, and a sensing receiver. The sensing method comprises: a sensing transmitter determining a sensing reference signal sequence; and, on the basis of the sensing reference signal sequence, sending a sensing reference signal, the sensing reference signal sequence being determined by cinit, and said cinit being determined by at least one of the following parameters: an identification number of a superframe where the sensing reference signal is located; an identification number of a radio frame where the sensing reference signal is located in the superframe; an identification number of a slot where the sensing reference signal is located in the radio frame; an identification number of an OFDM symbol where the sensing reference signal is located in the slot; and a sensing reference signal sequence identifier. The embodiments of the present disclosure can support simultaneously carrying out multiple sensing sessions, and different sensing sessions can use overlapping time-frequency resources, thus saving radio resources.

Description

Sensing method, sensing transmitter and sensing receiver TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a sensing method, a sensing transmitter and a sensing receiver. BACKGROUND

[0002] Wireless communication technology and wireless sensing technology have high similarity. Integrated sensing and communication (ISAC) can combine wireless communication and wireless sensing, introduce close cooperation between the two, thereby improving spectrum efficiency and reducing network deployment cost.

[0003] SUMMARY

[0004] The present disclosure provides a sensing method, a sensing transmitter and a sensing receiver.

[0005] According to a first aspect of the present disclosure, a sensing method is provided, which is performed by a sensing transmitter, and the method comprises:

[0006] determining a sensing reference signal sequence;

[0007] transmitting a sensing reference signal according to the sensing reference signal sequence;

[0008] wherein the sensing reference signal sequence is determined by c init , and the c init is determined by at least one of the following parameters:

[0009] a number of a superframe in which the sensing reference signal is located;

[0010] a number of a radio frame in the superframe in which the sensing reference signal is located;

[0011] a number of a time slot in the radio frame in which the sensing reference signal is located;

[0012] a number of an orthogonal frequency division multiplexing (OFDM) symbol in the time slot in which the sensing reference signal is located;

[0013] a sensing reference signal sequence identifier.

[0014] According to a second aspect of the present disclosure, a sensing method is provided, which is performed by a sensing receiver, and the method comprises:

[0015] receiving a sensing reference signal; wherein a sensing reference signal sequence corresponding to the sensing reference signal is determined by c init , and the c initis determined by at least one of the following parameters:

[0016] a number of a superframe in which the sensing reference signal is located;

[0017] a number of a radio frame in which the sensing reference signal is located within the superframe;

[0018] a number of a time slot in which the sensing reference signal is located within the radio frame;

[0019] a number of an OFDM symbol in which the sensing reference signal is located within the time slot;

[0020] a sensing reference signal sequence identifier.

[0021] According to a third aspect of an embodiment of the present disclosure, a sensing transmitter is provided, comprising:

[0022] a processing module configured to determine a sensing reference signal sequence;

[0023] a transceiver module configured to transmit a sensing reference signal according to the sensing reference signal sequence;

[0024] wherein the sensing reference signal sequence is determined by c init , the c init is determined by at least one of the following parameters:

[0025] a number of a superframe in which the sensing reference signal is located;

[0026] a number of a radio frame in which the sensing reference signal is located within the superframe;

[0027] a number of a time slot in which the sensing reference signal is located within the radio frame;

[0028] a number of an OFDM symbol in which the sensing reference signal is located within the time slot;

[0029] a sensing reference signal sequence identifier.

[0030] According to a fourth aspect of an embodiment of the present disclosure, a sensing receiver is provided, comprising:

[0031] a transceiver module configured to receive a sensing reference signal; wherein a sensing reference signal sequence corresponding to the sensing reference signal is determined by c init , the c init is determined by at least one of the following parameters:

[0032] a number of a superframe in which the sensing reference signal is located;

[0033] a number of a radio frame in which the sensing reference signal is located within the superframe;

[0034] a number of a time slot in which the sensing reference signal is located within the radio frame;

[0035] a number of an OFDM symbol in which the sensing reference signal is located within a time slot;

[0036] a sensing reference signal sequence identifier.

[0037] According to a fifth aspect of the embodiments of the present disclosure, a sensing system is provided, comprising:

[0038] a sensing transmitter configured to implement the method according to the first aspect; and

[0039] a sensing receiver configured to implement the method according to the second aspect.

[0040] According to a sixth aspect of the embodiments of the present disclosure, a communication device is provided, comprising:

[0041] one or more processors;

[0042] The communication device is configured to perform the method according to the first aspect or the second aspect.

[0043] According to a seventh aspect of the embodiments of the present disclosure, a storage medium is provided, which stores instructions, when the instructions are run on a communication device, the communication device is caused to perform the method according to the first aspect or the second aspect.

[0044] According to an eighth aspect of the embodiments of the present disclosure, a computer program product is provided, comprising a computer program, when the computer program is executed by a communication device, the method according to the first aspect or the second aspect is implemented.

[0045] The embodiments of the present disclosure can support multiple sensing sessions simultaneously, and different sensing sessions can use overlapping time-frequency resources, saving wireless resources. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0047] FIG. 1 is an exemplary schematic diagram of an architecture of a sensing system according to an embodiment of the present disclosure.

[0048] FIG. 2A is an exemplary interactive schematic diagram of a sensing method according to an embodiment of the present disclosure.

[0049] FIG. 2B is an exemplary schematic diagram of a c init An exemplary schematic diagram of the occupation of each bit in the sequence.

[0050] FIG. 2C is an exemplary schematic diagram of a cinit An exemplary schematic diagram of occupation of each bit in a sequence.

[0051] FIG. 2D is an exemplary schematic diagram of a c init An exemplary schematic diagram of occupation of each bit in a sequence.

[0052] FIG. 2E is an exemplary schematic diagram of a c init An exemplary schematic diagram of occupation of each bit in a sequence.

[0053] FIG. 3 is an exemplary flow schematic diagram of a sensing method according to an embodiment of the present disclosure.

[0054] FIG. 4 is an exemplary flow schematic diagram of a sensing method according to an embodiment of the present disclosure.

[0055] FIG. 5A is an exemplary schematic diagram of a structure of a sensing transmitter according to an embodiment of the present disclosure.

[0056] FIG. 5B is an exemplary schematic diagram of a structure of a sensing receiver according to an embodiment of the present disclosure.

[0057] FIG. 6A is an exemplary schematic diagram of a structure of a communication device according to an embodiment of the present disclosure.

[0058] FIG. 6B is an exemplary schematic diagram of a structure of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0059] Embodiments of the present disclosure propose a sensing method, a sensing transmitter and a sensing receiver.

[0060] In a first aspect, embodiments of the present disclosure propose a sensing method, performed by a sensing transmitter, comprising:

[0061] determining a sensing reference signal sequence;

[0062] transmitting a sensing reference signal according to the sensing reference signal sequence;

[0063] wherein the sensing reference signal sequence is determined by c init determining, the c init determined by at least one of the following parameters:

[0064] a number of a superframe in which the sensing reference signal is located;

[0065] a number of a radio frame in the superframe in which the sensing reference signal is located;

[0066] a number of a time slot in the radio frame in which the sensing reference signal is located;

[0067] a number of an OFDM symbol in which the sensing reference signal is located within a time slot;

[0068] a sensing reference signal sequence identifier.

[0069] In the above embodiment, the initial value c init The initial value c init The generated sensing reference signal sequences are different if one bit in the initial value c init is different. Thus, different sensing sessions can correspond to different initial values c init , and thus different sensing reference signal sequences are used to achieve simultaneous sensing. Moreover, different sensing sessions can use overlapping (including partially overlapping or fully overlapping) time-frequency resources, thus saving wireless resources.

[0070] In some embodiments of the first aspect, the initial value c init satisfies one of the following formulas:

[0071] wherein, is a number of OFDM symbols contained in a time slot; is a number of a time slot in which the sensing reference signal is located within a wireless frame; and l is a number of an OFDM symbol in which the sensing reference signal is located within the time slot; is a sensing reference signal sequence identifier; L is a number of bits of the sensing reference signal sequence identifier, X is a positive integer, L1 is a positive integer smaller than L, and Y is a positive integer greater than L1.

[0072] In the above embodiment, optional implementation manners are provided for determining the initial value c init based on the number of a time slot in which the sensing reference signal is located within a wireless frame, the number of an OFDM symbol in which the sensing reference signal is located within the time slot, and the sensing reference signal sequence identifier. When different parameters occupy different bit positions in the initial value c init , the initial value c init satisfies different formulas. In some embodiments, the initial value c init may satisfy one of the above formulas.

[0073] In some embodiments of the first aspect, X = 256 or X = 140.

[0074] In the above embodiments, X is a positive integer greater than or equal to the number of OFDM symbols contained in one radio frame. In the current frame structure, a typical case is that the number of OFDM symbols contained in one radio frame is 140. Therefore, X is a positive integer greater than or equal to 140. For example, X is equal to 140. For example, X is an integer power of 2 greater than 140, such as X being equal to 256.

[0075] In combination with some embodiments of the first aspect, in some embodiments, Y≥2L1+9.

[0076] In the above embodiments, the range of Y is defined to be greater than or equal to 2L1+9.

[0077] In combination with some embodiments of the first aspect, in some embodiments, the sensing reference signal sequence identifier is configured by a network device.

[0078] In the above embodiments, as a simple implementation, the sensing reference signal sequence identifier can be directly configured by the network.

[0079] In combination with some embodiments of the first aspect, in some embodiments, the sensing reference signal sequence identifier is determined by at least one of the following:

[0080] at least one bit in the identifier of the sensing transmitter;

[0081] at least one bit in the identifier of the sensing receiver.

[0082] In the above embodiments, if the sensing reference signal sequence identifier is not configured, the sensing reference signal sequence identifier can be determined by the above embodiments.

[0083] In combination with some embodiments of the first aspect, in some embodiments, the identifier of the sensing transmitter comprises at least one of the following:

[0084] a cell identifier (cell ID) of the sensing transmitter;

[0085] a user equipment identifier (UE ID) of the sensing transmitter;

[0086] a radio network temporary identity (RNTI) of the sensing transmitter.

[0087] In the above embodiments, according to different types of the sensing transmitter, the identifier of the sensing transmitter can comprise at least one of the cell ID, the UE ID, the RNTI, and the like of the sensing transmitter.

[0088] In combination with some embodiments of the first aspect, in some embodiments, the identifier of the sensing receiver comprises at least one of the following:

[0089] a cell identity of the sensing receiver;

[0090] a user equipment identity of the sensing receiver;

[0091] an RNTI of the sensing receiver.

[0092] In the above embodiments, according to different types of the sensing receiver, the identity of the sensing receiver can include at least one of a cell ID, a UE ID, an RNTI, and the like of the sensing receiver.

[0093] In some embodiments of the first aspect, the sensing reference signal sequence satisfies the following formula:

[0094] wherein r(m) is the mth element in the sensing reference signal sequence, the sequence c(n) is determined by a first m-sequence x1(n) and a second m-sequence x2(n), and x2(n) is determined by initialization.

[0095] In the above embodiments, a generation manner of the sensing reference signal sequence is defined.

[0096] In some embodiments of the first aspect, c(n) = (x1(n+N c )+x2(n+N c ))mod 2; x1(n+31) = (x1(n+3)+x1(n))mod 2; x2(n+31) = (x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2.

[0097] wherein N c = 1600, x1(n) is initialized as x1(0) = 1, x1(n) = 0, n = 1, 2, …, 30.

[0098] In the above embodiments, the generation manners of the pseudo-random sequence c(n), the first m-sequence x1(n), and the second m-sequence x2(n) are defined.

[0099] In a second aspect, the embodiments of the present disclosure provide a sensing method, performed by a sensing receiver, and the method comprises:

[0100] receiving a sensing reference signal; wherein a sensing reference signal sequence corresponding to the sensing reference signal is determined by c init , which is determined by at least one of the following parameters: init

[0101] a number of a superframe in which the sensing reference signal is located; ​

[0102] a number of a radio frame in which the sensing reference signal is located within a superframe;

[0103] a number of a slot in which the sensing reference signal is located within a radio frame;

[0104] a number of an OFDM symbol in which the sensing reference signal is located within a slot;

[0105] a sensing reference signal sequence identification.

[0106] In some embodiments in combination with the second aspect, in some embodiments, the c init satisfies one of the following formulas:

[0107] wherein, is a number of OFDM symbols contained in a slot; is a number of a slot in which the sensing reference signal is located within a radio frame; and l is a number of an OFDM symbol in which the sensing reference signal is located within a slot. is a sensing reference signal sequence identification; L is a number of bits of the sensing reference signal sequence identification, X is a positive integer, L1 is a positive integer smaller than L, and Y is a positive integer larger than L1.

[0108] In some embodiments in combination with the second aspect, in some embodiments, X = 256 or X = 140.

[0109] In some embodiments in combination with the second aspect, in some embodiments, Y ≥ 2L1+9.

[0110] In some embodiments in combination with the second aspect, in some embodiments, the sensing reference signal sequence identification is configured by a network device.

[0111] In some embodiments in combination with the second aspect, in some embodiments, the sensing reference signal sequence identification is determined by at least one of the following:

[0112] at least one bit of an identification of the sensing transmitter;

[0113] at least one bit of an identification of the sensing receiver.

[0114] In some embodiments in combination with the second aspect, in some embodiments, the identification of the sensing transmitter comprises at least one of the following:

[0115] a cell identification (cell ID) of the sensing transmitter;

[0116] a user equipment identification (UE ID) of the sensing transmitter;

[0117] RNTI of the sensing transmitter.

[0118] In some embodiments in combination with the second aspect, in some embodiments, the identity of the sensing receiver comprises at least one of:

[0119] cell identity of the sensing receiver;

[0120] user equipment identity of the sensing receiver;

[0121] RNTI of the sensing receiver.

[0122] In some embodiments in combination with the second aspect, in some embodiments, the sensing reference signal sequence satisfies the following formula:

[0123] wherein r(m) is the mth element in the sensing reference signal sequence, sequence c(n) is determined by a first m-sequence x1(n) and a second m-sequence x2(n), x2(n) is determined by initialization.

[0124] In some embodiments in combination with the second aspect, in some embodiments, c(n) = (x1(n+N c )+x2(n+N c ))mod 2; x1(n+31) = (x1(n+3) + x1(n))mod 2;

[0125] x2(n+31) = (x2(n+3) + x2(n+2) + x2(n+1) + x2(n))mod 2;

[0126] wherein N c =1600, x1(n) is initialized as x1(0) =1, x1(n) =0, n =1,2, …,30.

[0127] In a third aspect, the embodiments of the present disclosure provide a sensing transmitter, comprising:

[0128] a processing module configured to determine a sensing reference signal sequence;

[0129] a transceiving module configured to transmit a sensing reference signal according to the sensing reference signal sequence;

[0130] wherein the sensing reference signal sequence is determined by c init , the c init is determined by at least one of the following parameters:

[0131] number of a superframe in which the sensing reference signal is located;

[0132] a number of a wireless frame in which the sensing reference signal is located within a superframe;

[0133] a number of a time slot in which the sensing reference signal is located within a wireless frame;

[0134] a number of an OFDM symbol in which the sensing reference signal is located within a time slot;

[0135] a sensing reference signal sequence identifier.

[0136] In a fourth aspect, an embodiment of the present disclosure provides a sensing receiver, comprising:

[0137] a transceiver configured to receive a sensing reference signal; wherein a sensing reference signal sequence corresponding to the sensing reference signal is determined by at least one of the following parameters: init determination, the c init determination, the c

[0138] a number of a superframe in which the sensing reference signal is located;

[0139] a number of a wireless frame in which the sensing reference signal is located within a superframe;

[0140] a number of a time slot in which the sensing reference signal is located within a wireless frame;

[0141] a number of an OFDM symbol in which the sensing reference signal is located within a time slot;

[0142] a sensing reference signal sequence identifier.

[0143] In a fifth aspect, an embodiment of the present disclosure provides a sensing system, comprising:

[0144] a sensing transmitter configured to implement the method described in the optional implementation of the first aspect; and

[0145] a sensing receiver configured to implement the method described in the optional implementation of the second aspect.

[0146] In a sixth aspect, an embodiment of the present disclosure provides a communication device, comprising:

[0147] one or more processors;

[0148] wherein the communication device is configured to perform the method described in the optional implementation of the first aspect or the second aspect.

[0149] In a seventh aspect, an embodiment of the present disclosure provides a storage medium, the storage medium storing instructions, when the instructions are run on a communication device, causing the communication device to perform the method described in the optional implementation of the first aspect or the second aspect.

[0150] Eighthly, embodiments of this disclosure provide a computer program product including a computer program that, when executed by a communication device, implements the method as described in the optional implementation of the first or second aspect.

[0151] In a ninth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in an optional implementation of the first or second aspect.

[0152] It is understood that the aforementioned sensing transmitter, sensing receiver, sensing system, communication device, storage medium, computer program product, chip, or chip system are all used to perform the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0153] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0154] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0155] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0156] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0157] In the embodiments disclosed herein, "multiple" refers to two or more.

[0158] In some embodiments, the terms "at least one of," "one or more of," "a plurality of," "multiple," and the like can be used interchangeably.

[0159] In some embodiments, the recitations "at least one of A, B," "A and / or B," "in one case A, in another case B," "in response to a case A, in response to a case B," and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selectively executed (A and B are selectively executed); in some embodiments, A and B (A and B are executed). When there are more branches such as A, B, C, and the like, the above is similar.

[0160] In some embodiments, the recitations "A or B" and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selectively executed (A and B are selectively executed). When there are more branches such as A, B, C, and the like, the above is similar.

[0161] The prefix words "first", "second", and the like in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute a limitation on the position, order, priority, quantity, or content of the description objects. The description of the description objects should refer to the description in the context of the claims or embodiments, and should not constitute an additional limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor do they limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and their types can be the same or different; for another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and their contents can be the same or different.

[0162] In some embodiments, "comprising", "including", "to indicate", "carrying", can be interpreted as directly carrying A, or indirectly indicating A.

[0163] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0164] In some embodiments, the terms "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", "above" and the like can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0165] In some embodiments, the apparatus and device can be interpreted as physical or virtual, and its name is not limited to the name described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and the like.

[0166] In some embodiments, "network" can be interpreted as an apparatus included in the network, such as an access network device, a core network device, and the like.

[0167] In some embodiments, an “access network device (AN device)” can also be referred to as a “radio access network device (RAN device),” a “base station (BS),” a “radio base station,” a “fixed station,” and in some embodiments can also be understood as a “node,” an “access point,” a “transmission point (TP),” a “reception point (RP),” a “transmission / reception point (TRP),” a “panel,” an “antenna panel,” an “antenna array,” a “cell,” a “macro cell,” a “small cell,” a “femto cell,” a “pico cell,” a “sector,” a “cell group,” a “serving cell,” a “carrier,” a “component carrier,” a “bandwidth part (BWP),” and the like.

[0168] In some embodiments, a "terminal" or "terminal device" can be referred to as a "user equipment" (UE), a "user terminal," a "mobile station" (MS), a "mobile terminal" (MT), a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, and the like.

[0169] In some embodiments, data, information and the like can be acquired in compliance with laws and regulations of the country where the location is situated.

[0170] In some embodiments, data, information and the like can be acquired after obtaining consent of a user.

[0171] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0172] FIG. 1 is a schematic diagram of an architecture of a perception system according to an embodiment of the present disclosure, as shown in FIG. 1, the perception system 100 includes a perception transmitter 101 and a perception receiver 102. In some embodiments, the perception transmitter 101 can be located in a terminal or a network device. In some embodiments, the perception receiver 102 can be located in a terminal or a network device. In the embodiments of the present disclosure, the perception system can also be referred to as a communication system, or a communication perception system. In some embodiments, a device (such as a terminal or a network device) can include a perception transmitter and a perception receiver, or include one of a perception transmitter and a perception receiver.

[0173] In some embodiments, the terminal includes at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-capable automobile, a smart automobile, a smart door lock, a tablet (Pad), a wireless transceiver-equipped computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc., but is not limited thereto.

[0174] In some embodiments, the network device can include at least one of an access network device and a core network device.

[0175] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, and the access network device can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a Wi-Fi system, etc., but is not limited thereto.

[0176] In some embodiments, the core network device can be one device including one or more network elements, or can be multiple devices or device groups each including all or part of the one or more network elements described above. The network element can be virtual or physical. The core network includes at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC), for example.

[0177] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at which time the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0178] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, with part of the protocol layer functions being controlled by the CU, and the remaining part or all of the protocol layer functions being distributed in the DU and controlled by the CU, but not limited thereto.

[0179] It can be understood that the system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed by the embodiments of the present disclosure. It can be known by those skilled in the art that, as the system architecture evolves and new business scenarios appear, the technical solutions proposed by the embodiments of the present disclosure are also applicable to similar technical problems.

[0180] The following embodiments of the present disclosure can be applied to the perception system 100 shown in FIG. 1 or part of the subjects, but are not limited thereto. The subjects shown in FIG. 1 are exemplary, and the perception system can include all or part of the subjects in FIG. 1, or include other subjects other than those in FIG. 1. The number and form of each subject is arbitrary, each subject can be physical or virtual, the connection relationship between each subject is exemplary, each subject can not be connected or can be connected, and the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0181] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based on them, and the like. In addition, a plurality of systems can be combined (for example, combination of LTE or LTE-A and 5G, and the like).

[0182] Wireless communication technology and wireless sensing technology have high similarity. Integrated sensing and communication (ISAC) can combine wireless communication and wireless sensing, introduce close cooperation between the two, and thus improve spectrum efficiency and reduce network deployment cost.

[0183] In wireless sensing, it is often required to estimate the range, azimuth angle (e.g., horizontal and vertical direction angles), and velocity of a sensing target. Generalized sensing also includes wireless tracking and radio frequency identification of a sensing target. To perform sensing, a sensing transmitter usually transmits a dedicated reference signal. For ease of description, it is referred to as a sensing reference signal. The sensing reference signal can also be referred to as a sensing signal.

[0184] Generally, there are two modes for wireless sensing: monostatic mode and bistatic mode. In the monostatic mode, the sensing transmitter and the sensing receiver are co-located, and the sensing transceiver estimates at least one of the range, angle, and velocity of a sensing target by measuring the echo of the sensing reference signal. In the bistatic mode, the sensing transmitter and the sensing receiver are not co-located, and the sensing transmitter transmits the sensing reference signal, and the sensing receiver estimates at least one of the range, angle, and velocity of a sensing target by measuring the sensing reference signal.

[0185] Depending on the different types of sensing transmitters and sensing receivers, wireless sensing includes numerous scenarios, such as: UE monostatic sensing, gNB monostatic sensing, UE-to-gNB bistatic sensing, and gNB-to-UE bistatic sensing, etc.

[0186] Optionally, for gNB-to-gNB sensing, the following sensing scenarios can be included:

[0187] Scenario 1: gNB self-transmit and self-receive; wherein the gNB transmits a sensing reference signal, the sensing reference signal is reflected by a sensing target, and then the gNB receives the reflected sensing reference signal.

[0188] Scenario 2: gNB A transmits and gNB B receives; wherein gNB A transmits a sensing reference signal, the sensing reference signal is reflected by a sensing target, and then gNB B receives the reflected sensing reference signal.

[0189] Optionally, for UE-to-UE sensing, the following sensing scenarios can be included:

[0190] Scenario 3: UE self-transmit and self-receive; wherein the UE transmits a sensing reference signal, the sensing reference signal is reflected by a sensing target, and then the UE receives the reflected sensing reference signal.

[0191] Scenario 4: UE A transmits and UE B receives; wherein UE A transmits a sensing reference signal, the sensing reference signal is reflected by a sensing target, and then UE B receives the reflected sensing reference signal.

[0192] Optionally, for gNB-to-UE sensing, the following sensing scenarios can be included:

[0193] Scenario 5: UE-to-gNB; wherein the UE transmits a sensing reference signal, the sensing reference signal is reflected by the sensing target, and then the gNB receives the reflected sensing reference signal.

[0194] Scenario 6: gNB-to-UE; wherein the gNB transmits a sensing reference signal, the sensing reference signal is reflected by the sensing target, and then the UE receives the reflected sensing reference signal.

[0195] The embodiments of the present disclosure are not limited to the scenarios of wireless sensing. The gNB described above can be replaced by any network device.

[0196] Taking a cellular system as an example, sensing sessions of different sensing types and different sensing scenarios occur at the same time. For example, some UEs perform monostatic sensing, and some UEs perform bistatic sensing. Obviously, it is not realistic for these simultaneous sensing sessions to use completely different time-frequency resources. Not only will this limit the number of simultaneous sensing sessions, but it will also reduce the available resources of the sensing reference signal, thereby leading to a decline in sensing performance. A feasible solution is to allow different sensing sessions to use time-frequency resources that can overlap (including partial overlap or complete overlap), and different sensing sessions to use different sensing reference signal sequences.

[0197] FIG. 2A is an interaction schematic diagram of a sensing method according to an embodiment of the present disclosure. As shown in FIG. 2A, the embodiments of the present disclosure relate to a sensing method, and the method includes the following steps:

[0198] In step S2101, the sensing transmitter determines a sensing reference signal sequence.

[0199] The sensing reference signal sequence is a sequence of sensing reference signals. In some embodiments, the sensing reference signal sequence is determined by c init Alternatively, the sensing reference signal sequence is initialized by c init

[0200] In some embodiments, the sensing reference signal sequence satisfies the following formula:

[0201] wherein r(m) is the mth element in the sensing reference signal sequence, the sequence c(n) is generated by two m sequences, and for ease of description, the two m sequences are denoted as a first m sequence x1(n) and a second m sequence x2(n). j is an imaginary unit.

[0202] Alternatively, the sequence c(n), the first m sequence x1(n), and the second m sequence x2(n) can be generated in the following manner: c(n) = (x1(n+N c + x2(n+N c ​x1(n+31) = (x1(n+3) + x1(n)) mod 2; x2(n+31) = (x2(n+3) + x2(n+2) + x2(n+1) + x2(n)) mod 2;

[0203] Optionally, N c = 1600.

[0204] Optionally, x1(n) is initialized as x1(0) = 1, x1(n) = 0, n = 1, 2, …, 30.

[0205] Optionally, x2(n) is initialized by Optionally, c init is a positive integer. c init may be referred to as an initial value, and the binary sequence of c init may be referred to as an initialization sequence. x2(n) is initialized by the binary sequence of c init . In the embodiments hereinafter, c init may refer to a positive integer in decimal, or may refer to a sequence in binary. Unless otherwise specified, c init refers to the binary sequence of c init .

[0206] Optionally, the sequence length of the sequence c(n), the first m-sequence x1(n), the second m-sequence x2(n), and the sequence of c init is 31.

[0207] Optionally, the formula of the sensing reference signal sequence can not be limited to the above formula, and the sensing reference signal sequence can be determined by other formulas, which are not limited in the embodiments of the present disclosure.

[0208] In some embodiments, c init may be determined by at least one of the following parameters:

[0209] The number of a super frame in which the sensing reference signal is located;

[0210] The number of a radio frame in the super frame in which the sensing reference signal is located;

[0211] The number of a slot in the radio frame in which the sensing reference signal is located, denoted as s;

[0212] The number of an orthogonal frequency division multiplexing (OFDM) symbol in the slot in which the sensing reference signal is located, denoted as l;

[0213] a sequence identifier of the sensing reference signal, denoted as

[0214] Optionally, c init may be determined by one of the above parameters.

[0215] For example, c init may be determined by a number of a super frame in which the sensing reference signal is located.

[0216] For example, c init may be determined by a number of a radio frame in which the sensing reference signal is located within a super frame.

[0217] For example, c init may be determined by a slot number of a slot in which the sensing reference signal is located within a radio frame.

[0218] For example, c init may be determined by a number of an OFDM symbol in which the sensing reference signal is located within a slot.

[0219] For example, c init may be determined by a sequence identifier of the sensing reference signal.

[0220] Optionally, c init may be determined by a plurality of the above parameters.

[0221] For example, c init may be determined by a slot number of a slot in which the sensing reference signal is located within a radio frame, a number of an OFDM symbol in which the sensing reference signal is located within a slot, and a sequence identifier of the sensing reference signal.

[0222] For example, c init may be determined by a number of a radio frame in which the sensing reference signal is located within a super frame, a slot number of a slot in which the sensing reference signal is located within a radio frame, a number of an OFDM symbol in which the sensing reference signal is located within a slot, and a sequence identifier of the sensing reference signal.

[0223] For example, c init may be determined by a number of a super frame in which the sensing reference signal is located, a number of a radio frame in which the sensing reference signal is located within a super frame, a slot number of a slot in which the sensing reference signal is located within a radio frame, a number of an OFDM symbol in which the sensing reference signal is located within a slot, and a sequence identifier of the sensing reference signal.

[0224] Optionally, c init may be determined by any combination of the above parameters.

[0225] Optionally, the parameters used to determine c init may include at least one of the above parameters. Optionally, the parameters used to determine c initThe parameters for determining c init may not be limited to the above parameters, for example, c init may be determined according to at least one of the above parameters and other parameters other than the above parameters, and the disclosure embodiments are not limited in this regard. The more parameters used to determine c init , the more simultaneous sessions that can be supported.

[0226] The following takes the number of slots in which the in-slot sensing reference signal is located , the number of OFDM symbols in which the in-slot sensing reference signal is located l, and the sensing reference signal sequence identifier as an example to describe optional implementation manners of determining c init .

[0227] First, it is assumed that the sensing reference signal sequence identifier is 5 bits, that is , and it is assumed that the sequence length of c init is 31.

[0228] In some embodiments, c init satisfies the following formula:

[0229] is the number of OFDM symbols contained in a slot, mod is a modulo operation, also known as a modulo operation or a remainder operation. The meanings of the remaining parameters in the formula are described above.

[0230] For example, referring to FIG. 2B, the c init sequence is 31 bits, from right to left, from low bit to high bit, the lowest bit is recorded as the 0th bit, and when the sensing reference signal sequence identifier occupies the lowest L bits (0th- (L-1)th bits) of the c init sequence, c init may satisfy the above formula.

[0231] In some embodiments, c init satisfies the following formula:

[0232] For example, referring to FIG. 2C, when the sensing reference signal sequence identifier occupies the lowest L bits (0th- (L-1)th bits) of the c init sequence, c init may satisfy the above formula.

[0233] In some embodiments, c init satisfies the following formula:

[0234] X is a positive integer. Optionally, X is a positive integer greater than or equal to the number of OFDM symbols in a radio frame. Optionally, in the current frame structure, a typical case is that a radio frame contains 10 time slots, and each time slot contains 14 OFDM symbols, that is, the number of OFDM symbols in a radio frame is 140. Therefore, X is a positive integer greater than or equal to 140. In one example, X equals 140. In another example, X is an integer power of 2 greater than 140, for example, X equals 256 (the smallest integer power of 2 greater than 140).

[0235] For example, referring to Figure 2D, assuming X = 256, occupy c init The lowest 8 bits of the sequence (bits 0 to 7) are used as the sensing reference signal sequence identifier. occupy c init Bits 8 to L+7 of the sequence, c init The above formula can be satisfied.

[0236] In the above three embodiments, the reference signal sequence identifier occupy c init The sequence consists of L consecutive bits.

[0237] In some embodiments, c init Satisfy the following formula:

[0238] In the above embodiments, the reference signal sequence identifier It is divided into two parts, denoted as the lower L1 bit and the higher L-L1 bit. For example, referring to Figure 2E, the reference signal sequence is identified. Low L1 bit occupancy c init The lowest L1 bits of the sequence (bits 0 to L1-1), reference signal sequence identifier. High L-L1 bit occupancy c init Bits Y to L-L1+Y-1 of the sequence, with the intermediate bits L1 to Y-1 identified by the reference signal sequence. Other parameters besides time slot number are used. OFDM symbol number l, etc., c init The above formula can be satisfied.

[0239] In the above embodiments, L1 is a positive integer less than L, and Y is a positive integer greater than L1.

[0240] Optionally, Y is a positive integer greater than or equal to 2L1+9. By limiting the range of Y, the reference signal sequence identifier can be avoided. The high L-L1 bits of the sequence overlap with parameters (such as time slot number, OFDM symbol number, etc.) on other bit positions. Optionally, the range of Y and c init The value range of the parameters occupied by the 0th to (Y-1)th bit positions in the sequence.

[0241] Optionally, the reference signal sequence identifier may be divided into multiple parts, such as two parts, three parts, etc., the bits in the same part are c init contiguous in the sequence, and the bits in different parts are c init non-contiguous in the sequence. The number of parts into which the reference signal sequence identifier is divided is not limited.

[0242] Referring to the above embodiments, when the bits occupied by different parameters in the sequence are different, then c init satisfies different formulas. The present disclosure does not list all the formulas satisfied by c init , and other formulas satisfied by c init may be determined according to the parameters and the bits occupied by the parameters. init

[0243] In some embodiments, the sensing reference signal sequence identifier may be configured by the network device. For example, the network device sends first information to the sensing transmitter, and the first information is used to configure the sensing reference signal sequence identifier. Optionally, the network device can also send the first information to the sensing receiver, or the sensing transmitter can send second information to the sensing receiver, and the second information is used to configure the sensing reference signal sequence identifier.

[0244] In some embodiments, the sensing reference signal sequence identifier is determined by at least one of the following:

[0245] at least one bit position in the identifier of the sensing transmitter;

[0246] at least one bit position in the identifier of the sensing receiver.

[0247] In the above embodiments, the sensing reference signal sequence identifier can be determined only by the identifier of the sensing transmitter, or only by the identifier of the sensing receiver, or by the identifier of the sensing transmitter and the identifier of the sensing receiver together.

[0248] In some embodiments, according to different types of the sensing transmitter, the identifier of the sensing transmitter can include at least one of the following:

[0249] cell identifier (cell ID) of the sensing transmitter; ​

[0250] a user equipment identity (UE ID) of the sensing transmitter;

[0251] a radio network temporary identity (RNTI) of the sensing transmitter.

[0252] Optionally, the identity of the sensing transmitter can not be limited to the above identities.

[0253] In some embodiments, according to different types of the sensing receiver, the identity of the sensing receiver can include at least one of the following:

[0254] a cell ID of the sensing receiver;

[0255] a UE ID of the sensing receiver;

[0256] a RNTI of the sensing receiver.

[0257] Optionally, the identity of the sensing receiver can not be limited to the above identities.

[0258] Optionally, the sensing transmitter and / or the sensing receiver can determine the sensing reference signal sequence identity through the above embodiments.

[0259] Optionally, if the sensing reference signal sequence identity is not configured, the sensing reference signal sequence identity can be determined through the above embodiments.

[0260] In step S2102, the sensing transmitter transmits the sensing reference signal to the sensing receiver according to the sensing reference signal sequence.

[0261] In some embodiments, the sensing receiver receives the sensing reference signal. The sensing receiver measures the sensing reference signal to obtain a sensing quantity. Optionally, the sensing quantity includes at least one of a distance, an angle (such as a horizontal direction angle and a vertical direction angle), and a speed of the sensing target. Optionally, the sensing receiver determines the sensing reference signal sequence. The optional implementation of the sensing receiver determining the sensing reference signal sequence can refer to the optional implementation of step S2101, which is not described here again.

[0262] Optionally, the sensing transmitter and the sensing receiver are co-located, or the sensing transmitter and the sensing receiver are not co-located.

[0263] Optionally, the embodiments of the present disclosure can be used in various sensing scenarios in a single-station sensing mode and a double-station sensing mode.

[0264] According to the embodiments of the present disclosure, an initial value c initThe initial value c can be determined by at least one of the following parameters: the number of the superframe in which the sensing reference signal is located, the number of the radio frame in the superframe in which the sensing reference signal is located, the number of the time slot in the radio frame in which the sensing reference signal is located, the number of the OFDM symbol in the time slot in which the sensing reference signal is located, and the sensing reference signal sequence identifier. init If one bit in the initial value c is different, the generated sensing reference signal sequence is different. Therefore, different sensing sessions can correspond to different initial values c init , so that different sensing reference signal sequences are used to achieve simultaneous sensing. Moreover, different sensing sessions can use overlapping (including partial overlap or full overlap) time-frequency resources, thereby saving wireless resources.

[0265] The sequence design method of the sensing reference signal according to the embodiments of the present disclosure can support multiple sensing sessions to be performed simultaneously, and can also whiten the interference between different sensing sessions, thereby ensuring the sensing performance.

[0266] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms of "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "code point", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0267] In some embodiments, the terms of "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", "pilot signal", and the like can be replaced with each other.

[0268] In some embodiments, "acquire", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be replaced with each other, which can be interpreted as receiving from other subjects, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, and independently implementing, and the like.

[0269] In some embodiments, the terms “sending”, “transmitting”, “reporting”, “issuing”, “transferring”, “bidirectional transferring”, “sending and / or receiving” and the like can be replaced by each other.

[0270] In some embodiments, other optional implementations described before or after the description of the corresponding part of FIG. 2A can be referred to.

[0271] FIG. 3 is a flow diagram of a sensing method according to an embodiment of the present disclosure. As shown in FIG. 3, the embodiment of the present disclosure relates to a sensing method, which is performed by a sensing transmitter, and the method comprises the following steps:

[0272] Step S3101: determining a sensing reference signal sequence.

[0273] Optional implementations of step S3101 can be referred to optional implementations of step S2101 of FIG. 2A and other related parts of the embodiments involved in FIG. 2A, which will not be described here.

[0274] In some embodiments, the sensing reference signal sequence is determined by c init is determined by at least one of the following parameters: init

[0275] a number of a superframe in which the sensing reference signal is located;

[0276] a number of a radio frame in the superframe in which the sensing reference signal is located;

[0277] a number of a time slot in the radio frame in which the sensing reference signal is located;

[0278] a number of an OFDM symbol in the time slot in which the sensing reference signal is located;

[0279] an identification of the sensing reference signal sequence.

[0280] In some embodiments, c init satisfies one of the following formulas:

[0281] In the above formulas, the meanings of the parameters and optional implementations thereof are described above.

[0282] In some embodiments, the identification of the sensing reference signal sequence is configured by a network device.

[0283] In some embodiments, the identification of the sensing reference signal sequence is determined by at least one of the following:

[0284] at least one bit in an identification of the sensing transmitter; ​

[0285] at least one bit in the identity of the sensing receiver.

[0286] In some embodiments, the identity of the sensing transmitter comprises at least one of:

[0287] a cell ID of the sensing transmitter;

[0288] a UE ID of the sensing transmitter;

[0289] an RNTI of the sensing transmitter.

[0290] In some embodiments, the identity of the sensing receiver comprises at least one of:

[0291] a cell ID of the sensing receiver;

[0292] a UE ID of the sensing receiver;

[0293] an RNTI of the sensing receiver.

[0294] In some embodiments, the sensing reference signal sequence satisfies the following formula:

[0295] wherein r(m) is the m-th element in the sensing reference signal sequence, the sequence c(n) is determined by a first m-sequence x1(n) and a second m-sequence x2(n), and x2(n) is determined by initialization.

[0296] In some embodiments, c(n) = (x1(n+N c )+x2(n+N c ))mod 2; x1(n+31) = (x1(n+3)+x1(n))mod 2; x2(n+31) = (x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2;

[0297] wherein N c = 1600, x1(n) is initialized as x1(0) = 1, x1(n) = 0, n = 1, 2, …, 30.

[0298] Step S3102. Transmit the sensing reference signal according to the sensing reference signal sequence.

[0299] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in FIG. 2A and other associated parts in the embodiments involved by FIG. 2A, which will not be described herein.

[0300] FIG. 4 is a flow diagram of a sensing method according to an embodiment of the present disclosure. As shown in FIG. 4, the embodiment of the present disclosure relates to a sensing method, which is performed by a sensing receiver, and the method comprises the following steps:

[0301] Step S4101: receiving a sensing reference signal.

[0302] The optional implementation of step S4101 can refer to the optional implementation of step S2102 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which are not described herein again.

[0303] In some embodiments, the sensing reference signal corresponds to a sensing reference signal sequence determined by c init determined by at least one of the following parameters: init

[0304] a number of a superframe in which the sensing reference signal is located;

[0305] a number of a radio frame in the superframe in which the sensing reference signal is located;

[0306] a number of a time slot in the radio frame in which the sensing reference signal is located;

[0307] a number of an OFDM symbol in the time slot in which the sensing reference signal is located;

[0308] a sensing reference signal sequence identifier.

[0309] In some embodiments, c init satisfies one of the following formulas:

[0310] In the above formulas, the meanings of the parameters and the optional implementations thereof are described above.

[0311] In some embodiments, the sensing reference signal sequence identifier is configured by a network device.

[0312] In some embodiments, the sensing reference signal sequence identifier is determined by at least one of the following:

[0313] at least one bit of an identifier of the sensing transmitter;

[0314] at least one bit of an identifier of the sensing receiver.

[0315] In some embodiments, the identifier of the sensing transmitter comprises at least one of the following:

[0316] a cell ID of the sensing transmitter;

[0317] a UE ID of the sensing transmitter.​

[0318] RNTI of the sensing transmitter.

[0319] In some embodiments, the identity of the sensing receiver comprises at least one of:

[0320] a cell ID of the sensing receiver;

[0321] a UE ID of the sensing receiver;

[0322] a RNTI of the sensing receiver.

[0323] In some embodiments, the sensing reference signal sequence satisfies the following formula:

[0324] where r(m) is the m-th element in the sensing reference signal sequence, the sequence c(n) is determined by a first m-sequence x1(n) and a second m-sequence x2(n), and x2(n) is initialized by .

[0325] In some embodiments, c(n) = (x1(n+N c )+x2(n+N c )) mod 2; x1(n+31) = (x1(n+3)+x1(n)) mod 2; x2(n+31) = (x2(n+3)+x2(n+2)+x2(n+1)+x2(n)) mod 2;

[0326] where N c = 1600, x1(n) is initialized as x1(0) = 1, x1(n) = 0, n = 1, 2, …, 30.

[0327] In some embodiments, the above method can be combined with any of the steps in the embodiments of FIG. 2A and FIG. 3, or combined with any of the optional implementations of other embodiments.

[0328] According to embodiments of the present disclosure, a sequence design method of a sensing reference signal is proposed.

[0329] In some embodiments, the sensing reference signal sequence r(m) is:

[0330] where the pseudo-random sequence c(n) is generated by two m-sequences, denoted as x1(n) and x2(n). x2(n) is initialized by a positive integer (denoted as c init ).

[0331] Alternatively, the length of the pseudo-random sequence c(n) is 31, which can be defined as the following formula (see section 5.2.1 of TS38.211). c(n) = (x1(n+Nc )+x2(n+N c ))mod 2 x1(n+31)=(x1(n+3)+x1(n))mod 2 x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2

[0332] where N c =1600, x1(n) is initialized as x1(0)=1; x1(n)=0, n=1, 2,..., 30. x2(n) is initialized by a positive integer .

[0333] Optionally, c init is determined by at least one of the following parameters.

[0334] The number of a super frame in which the sensing reference signal is located;

[0335] The number of a radio frame (within the super frame) in which the sensing reference signal is located;

[0336] The slot number (within the radio frame) in which the sensing reference signal is located, denoted as

[0337] The OFDM symbol number (within the slot) in which the sensing reference signal is located, denoted as l;

[0338] The sensing reference signal sequence identification, denoted as

[0339] Assuming that the sensing reference signal sequence identification is bits, i.e. then c init can be expressed as one of the following formulas.

[0340] wherein, is the number of OFDM symbols contained in a slot.

[0341] wherein, X is a positive integer. Optionally, X=256 or X=140.

[0342] wherein, Optionally, Y≥2L1+9.

[0343] Optionally, the sensing reference signal sequence identification (i.e. ) can be configured by the network.

[0344] Optionally, if the above-mentioned sensing reference signal sequence identifier is not configured, the sensing reference signal sequence identifier is determined by at least one bit in at least one of the following identifiers:

[0345] an identifier of a sensing transmitter, such as a cell ID, a UE ID, an RNTI, and the like;

[0346] an identifier of a sensing receiver, such as a cell ID, a UE ID, an RNTI, and the like.

[0347] The sequence design method of the sensing reference signal proposed in the embodiments of the present disclosure can not only support multiple sensing sessions to be performed simultaneously, but also whiten the interference between different sensing sessions, thereby guaranteeing sensing performance.

[0348] In the embodiments of the present disclosure, part or all of the steps, optional implementation manners thereof, can be combined with part or all of the steps in other embodiments, or can be combined with optional implementation manners of other embodiments.

[0349] The embodiments of the present disclosure further propose an apparatus for implementing any of the above methods, for example, an apparatus including units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is further proposed, including units or modules for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, and the like) in any of the above methods.

[0350] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize any of the above methods or realize the functions of each unit or module of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship of elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the above units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0351] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), and the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the hardware circuit configuration. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like.

[0352] FIG. 5A is a structural schematic diagram of a sensing transmitter according to an embodiment of the present disclosure. As shown in FIG. 5A, the sensing transmitter 5100 can include at least one of a transceiving module 5101, a processing module 5102, and the like. In some embodiments, the processing module 5102 is configured to determine a sensing reference signal sequence; wherein the sensing reference signal sequence is determined by c init determining, the c initThe sensing reference signal is determined by at least one of the following parameters: the superframe number where the sensing reference signal is located; the radio frame number where the sensing reference signal is located within the superframe; the time slot number where the sensing reference signal is located within the radio frame; the OFDM symbol number where the sensing reference signal is located within the time slot; and the sensing reference signal sequence identifier. The transceiver module 5101 is used to transmit the sensing reference signal according to the sensing reference signal sequence. Optionally, the transceiver module 5101 is used to perform at least one of the communication steps (e.g., step S2102, but not limited thereto) performed by the sensing transmitter in any of the above methods, which will not be elaborated here. Optionally, the processing module 5102 is used to perform at least one of the other steps (e.g., step S2101, but not limited thereto) performed by the sensing transmitter in any of the above methods, which will not be elaborated here.

[0353] Figure 5B is a schematic diagram of the structure of a sensing receiver according to an embodiment of this disclosure. As shown in Figure 5B, the sensing receiver 5200 may include at least one of a transceiver module 5201 and a processing module 5202. In some embodiments, the transceiver module 5201 is used as a transceiver module and is configured to receive a sensing reference signal; wherein, the sensing reference signal sequence corresponding to the sensing reference signal is composed of c init It is confirmed that c init The sensing reference signal is determined by at least one of the following parameters: the superframe number where the sensing reference signal is located; the radio frame number where the sensing reference signal is located within the superframe; the time slot number where the sensing reference signal is located within the radio frame; the OFDM symbol number where the sensing reference signal is located within the time slot; and the sensing reference signal sequence identifier. Optionally, the transceiver module 5201 is used to perform at least one of the communication steps such as transmission and / or reception performed by the sensing receiver in any of the above methods, which will not be elaborated here. Optionally, the processing module 5202 is used to perform at least one of the other steps performed by the sensing receiver in any of the above methods, which will not be elaborated here.

[0354] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0355] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0356] FIG. 6A is a structural schematic diagram of a communication device 6100 according to an embodiment of the present disclosure. The communication device 6100 can be a network device (for example, an access network device, a core network device, etc.), a terminal (for example, a user equipment, etc.), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0357] As shown in FIG. 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (for example, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. The communication device 6100 is used to execute any of the above methods.

[0358] In some embodiments, the communication device 6100 further includes one or more memories 6102 for storing instructions. Optionally, all or part of the memory 6102 can also be outside the communication device 6100.

[0359] In some embodiments, the communication device 6100 further includes one or more transceivers 6103. When the communication device 6100 includes one or more transceivers 6103, the transceiver 6103 performs at least one of the communication steps (for example, step S2102, but not limited to this) of transmitting and / or receiving in the above method, and the processor 6101 performs at least one of the other steps (for example, step S2101, but not limited to this).

[0360] In some embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms of transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced by each other, the terms of transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced by each other, and the terms of receiver, receiving unit, receiver, receiving circuit, etc. can be replaced by each other.

[0361] In some embodiments, the communication device 6100 can include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected with the memory 6102, and the interface circuit 6104 can be used to receive signals from the memory 6102 or other devices, and can be used to send signals to the memory 6102 or other devices. For example, the interface circuit 6104 can read the instructions stored in the memory 6102 and send the instructions to the processor 6101.

[0362] The communication device 6100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 can not be limited by FIG. 6A. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, and the like; (6) other devices, and the like.

[0363] FIG. 6B is a structural schematic diagram of a chip 6200 according to an embodiment of the present disclosure. For the case where the communication device 6100 is a chip or a chip system, the structural schematic diagram of the chip 6200 shown in FIG. 6B can be referred to, but is not limited thereto.

[0364] The chip 6200 includes one or more processors 6201, and the chip 6200 is configured to execute any of the above methods.

[0365] In some embodiments, the chip 6200 further includes one or more interface circuits 6202. Optionally, the interface circuit 6202 is connected to the memory 6203, and the interface circuit 6202 can be configured to receive signals from the memory 6203 or other devices, and the interface circuit 6202 can be configured to send signals to the memory 6203 or other devices. For example, the interface circuit 6202 can read instructions stored in the memory 6203 and send the instructions to the processor 6201.

[0366] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (for example, step S2102, but not limited thereto) in the above methods, and the processor 6201 performs at least one of the other steps (for example, step S2101, but not limited thereto).

[0367] In some embodiments, the terms interface circuit, interface, transceiver pin, and transceiver can be replaced with each other.

[0368] In some embodiments, the chip 6200 further includes one or more memories 6203 for storing instructions. Optionally, all or part of the memory 6203 can be outside the chip 6200.

[0369] The present disclosure further provides a storage medium having stored instructions which, when executed on the communication device 6100, cause the communication device 6100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and can also be a storage medium readable by other apparatuses. Optionally, the storage medium can be a non-transitory storage medium, but is not limited thereto and can also be a transitory storage medium.

[0370] The present disclosure further provides a program product which, when executed by the communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0371] The present disclosure further provides a computer program which, when executed on a computer, causes the computer to perform any of the above methods.

Claims

1. A perception method, comprising: executed by a sensing transmitter, the method comprising: determining a sensing reference signal sequence; transmitting a sensing reference signal according to the sensing reference signal sequence; wherein the sensing reference signal sequence is determined by c init is determined by at least one of the following parameters: init is determined by at least one of the following parameters: a number of a superframe in which the sensing reference signal is located; a number of a radio frame in the superframe in which the sensing reference signal is located; a number of a time slot in the radio frame in which the sensing reference signal is located; a number of an orthogonal frequency division multiplexing, OFDM, symbol in the time slot in which the sensing reference signal is located; a sensing reference signal sequence identification.

2. The method of claim 1, wherein, The c init satisfies one of the following formulas: wherein a number of OFDM symbols contained in a time slot; a number of a time slot in the radio frame in which the sensing reference signal is located; a number of an OFDM symbol in the time slot in which the sensing reference signal is located; a sensing reference signal sequence identification; L is a number of bits of the sensing reference signal sequence identification, X is a positive integer, L1 is a positive integer less than L, and Y is a positive integer greater than L1.

3. The method of claim 2, wherein, X = 256 or X = 140.

4. The method according to claim 2 or 3, characterized in that, Y ≥ 2L1 + 9.

5. The method according to any one of claims 1-4, characterized in that, The sensing reference signal sequence identification is configured by a network device.

6. The method according to any one of claims 1-4, characterized in that, The sensing reference signal sequence identification is determined by at least one of the following: at least one bit of an identification of the sensing transmitter; at least one bit of an identification of the sensing receiver.

7. The method of claim 6, wherein, The identification of the sensing transmitter comprises at least one of the following: a cell identification of the sensing transmitter; a user equipment identification of the sensing transmitter; a radio network temporary identification, RNTI, of the sensing transmitter.

8. The method according to claim 6 or 7, characterized in that, The identification of the sensing receiver comprises at least one of the following: a cell identification of the sensing receiver; a user equipment identification of the sensing receiver; a RNTI of the sensing receiver.

9. The method according to any one of claims 1-8, characterized in that, The perceptual reference signal sequence satisfies the following equation: where r(m) is the mth element in the perceptual reference signal sequence, the sequence c(n) is determined by a first m-sequence x1(n) and a second m-sequence x2(n), x2(n) is determined by initialization.

10. The method of claim 9, wherein, c(n) = (x1(n+N c )+x2(n+N c )) mod 2; x1(n+31) = (x1(n+3) + x1(n)) mod 2; x2(n+31) = (x2(n+3) + x2(n+2) + x2(n+1) + x2(n)) mod 2; where N c = 1600, x1(n) is initialized as x1(0) = 1, x1(n) = 0, n = 1, 2, …, 30.

11. A perception method comprising: executed by a sensing receiver, the method comprising: receiving a sensing reference signal; wherein a sensing reference signal sequence corresponding to the sensing reference signal is determined by c init determined, the c init is determined by at least one of the following parameters: a number of a superframe in which the sensing reference signal is located; a number of a radio frame in the superframe in which the sensing reference signal is located; a number of a time slot in the radio frame in which the sensing reference signal is located; a number of an OFDM symbol in the time slot in which the sensing reference signal is located; a sensing reference signal sequence identification.

12. The method of claim 11, wherein, The c init satisfies one of the following formulas: wherein, a number of OFDM symbols contained in a time slot; a number of a time slot in the radio frame in which the sensing reference signal is located; a number of an OFDM symbol in the time slot in which the sensing reference signal is located; a sensing reference signal sequence identification; L is a number of bits of the sensing reference signal sequence identification, X is a positive integer, L1 is a positive integer less than L, and Y is a positive integer greater than L1.

13. The method of claim 12, wherein, X = 256 or X = 140.

14. The method according to claim 12 or 13, characterized in that, Y ≥ 2L1 + 9.

15. The method according to any one of claims 11-14, characterized in that, The sensing reference signal sequence identification is configured by a network device.

16. The method of any one of claims 11-14, wherein, The sensing reference signal sequence identification is determined by at least one of the following: at least one bit of an identification of the sensing transmitter; at least one bit of an identification of the sensing receiver.

17. The method of claim 16, wherein, The identification of the sensing transmitter comprises at least one of the following: a cell identification of the sensing transmitter; a user equipment identification of the sensing transmitter; a RNTI of the sensing transmitter.

18. The method of claim 16 or 17, wherein, The identification of the sensing receiver comprises at least one of the following: a cell identification of the sensing receiver; a user equipment identification of the sensing receiver; a RNTI of the sensing receiver.

19. The method according to any one of claims 11-18, characterized in that, The perceptual reference signal sequence satisfies the following equation: where r(m) is the mth element in the perceptual reference signal sequence, the sequence c(n) is determined by a first m-sequence x1(n) and a second m-sequence x2(n), x2(n) is determined by initialization.

20. The method of claim 19, wherein, c(n) = (x1(n+N c )+x2(n+N c )) mod 2; x1(n+31) = (x1(n+3) + x1(n)) mod 2; x2(n+31) = (x2(n+3) + x2(n+2) + x2(n+1) + x2(n)) mod 2; where N c = 1600, xi(n) is initialized as xi(0) = 1, xi(n) = 0, n = 1, 2,..., 30.

21. A cognitive transmitter, characterized by comprising: a processing module configured to determine a sensing reference signal sequence; a transceiving module configured to transmit a sensing reference signal according to the sensing reference signal sequence; wherein the sensing reference signal sequence is determined by c init is determined by at least one of the following parameters: init is determined by at least one of the following parameters: a number of a superframe in which the sensing reference signal is located; a number of a radio frame in which the sensing reference signal is located within the superframe; a number of a time slot in which the sensing reference signal is located within the radio frame; a number of an OFDM symbol in which the sensing reference signal is located within the time slot; a sensing reference signal sequence identifier.

22. A cognitive receiver, characterized by comprising: The transceiving module is configured to receive a sensing reference signal; wherein a sensing reference signal sequence corresponding to the sensing reference signal is determined by c init The c init is determined by at least one of the following parameters: a number of a superframe in which the sensing reference signal is located; a number of a radio frame in which the sensing reference signal is located within the superframe; a number of a time slot in which the sensing reference signal is located within the radio frame; a number of an OFDM symbol in which the sensing reference signal is located within the time slot; a sensing reference signal sequence identifier.

23. A perception system, comprising: comprising: a sensing transmitter configured to implement the sensing method of any one of claims 1-10; and, a sensing receiver configured to implement the sensing method of any one of claims 11-20.

24. A communications device, characterized by comprising: one or more processors; wherein the communication device is configured to perform the sensing method of any one of claims 1-20.

25. A storage medium, the storage medium storing instructions, wherein, the instructions, when executed on the communication device, cause the communication device to perform the sensing method of any one of claims 1-20.

26. A computer program product comprising a computer program, characterised in that, the computer program, when executed by the communication device, implements the sensing method of any one of claims 1-20.

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